WO2001016531A1

WO2001016531A1 - Air conditioner

Info

Publication number: WO2001016531A1
Application number: PCT/JP2000/005365
Authority: WO
Inventors: Kenji Koreeda; Tetsuya Yamashita; Mikio Ito; Yuuichi Terada
Original assignee: Daikin Industries, Ltd.
Priority date: 1999-08-31
Filing date: 2000-08-10
Publication date: 2001-03-08
Also published as: CN1157566C; ES2370626T3; ATE527500T1; KR20020025991A; EP1215446B1; AU6473800A; EP1215446A4; CN1371460A; EP1215446A1; AU763427B2; JP2001065916A; JP3287343B2; HK1045874A1; KR100458466B1

Abstract

An air conditioner, wherein an electrical equipment unit (14) is disposed so that a longitudinal dimension thereof is at least 1/3 or more of the longitudinal dimension of an indoor unit casing (1) or an outlet (11), whereby the dimension of an indoor heat exchanger can be increased to increase an air conditioning efficiency without increasing the size of a main unit casing or the main unit casing can be formed compact without reducing the size of the indoor heat exchanger.

Description

Description Air Conditioner Technical Field

The present invention relates to an air conditioner, and more particularly to an air conditioner in which an arrangement space for an electrical component unit is improved. Background art

FIG. 28 is a transparent front view showing an indoor unit of a conventional air conditioner. Inside the main body casing 81, there is provided an indoor heat exchange 2 configured by connecting the front-side heat exchange m¾ and the rear-side heat exchanger in an inverted V-shape. A cylindrical cross flow fan 83 is disposed so as to be sandwiched between the inverted V-shaped portions of the indoor heat exchanger 82. The cross flow fan 83 is driven to rotate by a fan motor 85 provided on the right side of the indoor heat exchanger 82. When the cross flow fan 85 is driven to rotate, the indoor air is sucked and drawn in from the front of the indoor heat exchanger 82, and heat is exchanged by the indoor heat exchanger 82. 82 Air conditioning air is blown into the room from below.

In the indoor heat exchanger 82, an auxiliary pipe 86 is drawn out from the right side in the figure. The auxiliary pipe 86 is composed of a liquid pipe and a gas pipe which form a refrigerant circuit with an outdoor unit (not shown). After being drawn out from the indoor heat exchanger 82, the auxiliary pipe 86 is disposed on the right side of the indoor heat exchanger 82. Then, the auxiliary pipe 86 is further heat-insulated to form a communication pipe 88, which is arranged from the right side to the left side of the main casing 81 through the back of the main casing 81. Have been. Further, an electrical component box 90 for disposing electrical components such as a microcomputer and a power amplifier for driving a motor is provided on the right side of the auxiliary pipe 86 so as not to hinder the air flow path.

In the indoor unit, an auxiliary pipe 86 drawn from the indoor heat exchanger 82 is provided on the right side of the indoor heat exchanger 2. And further to the right of this auxiliary pipe 8 6 In addition, an electrical component box 90 is provided. In other words, two spaces that do not directly contribute to the heat exchange, namely, the draw-out space for the auxiliary pipe 86 and the electrical component box 90 occupy the main casing 81, and the indoor heat exchanger 82 only for these two spaces. This means that the width of the must be reduced. Of course, from the viewpoint of air conditioning efficiency, it is desirable that the width of the indoor heat exchanger 82 be large. On the other hand, however, increasing the width of the main body casing 81 is not desirable from the viewpoint of installation space limitations and maintenance of installation workability. Therefore, the space that does not directly contribute to heat exchange in the main body casing 81 is made as small as possible, and the width of the indoor heat exchanger 82 is increased without increasing the width of the main body casing 81. It was desired to improve air conditioning efficiency. Disclosure of the invention

The present invention has been made to solve the above-mentioned conventional problems, and its purpose is to improve the efficiency of air conditioning by increasing the size of heat exchange without increasing the size of the main body casing. Another object of the present invention is to provide an air conditioner in which the main body casing can be made compact without reducing the size of the heat exchanger.

In order to achieve the above object, the air conditioner according to the first aspect of the present invention is configured such that the length of the electrical component unit along the longitudinal direction of the indoor unit casing is at least 1 Z3 or more than the longitudinal dimension of the indoor unit casing. It is characterized by arranging electrical component units so that

According to the air conditioner of the first aspect, by arranging the elongated electric component unit in the indoor unit casing, the electric component unit is placed in various spaces as viewed from a cross section orthogonal to the longitudinal direction of the indoor unit casing. Can be arranged. That is, there is no need for a special space for arranging electrical components on the side of the indoor unit casing as in the conventional case. Therefore, the longitudinal size of the indoor unit can be reduced, and the indoor unit can be made compact. Conversely, in other words, in indoor units of the same dimensions as before, the space for installing heat exchangers and fans can be increased, so that air conditioning performance can be improved compared to the past. Become. The electrical components in the above The size of the knit in the longitudinal direction of the indoor unit casing is preferably longer, more preferably at least 12 and more preferably at least 2/3 of the longitudinal size of the indoor unit casing.

Further, the air conditioner according to the second aspect of the present invention is configured such that the electrical component unit has a dimension along the longitudinal direction of the indoor unit outlet which is at least 1 Z3 or more of the longitudinal dimension of the outlet. It is characterized by the arrangement of units.

Also in the air conditioner of the second invention, similar to the first invention, the advantages of making the indoor unit compact and improving the air conditioning performance can be obtained. In this case as well, it is preferable that the length of the electrical component unit along the longitudinal direction of the indoor unit outlet is further increased, preferably 1 Z2 or more, more preferably 2 or more, of the longitudinal size of the indoor unit outlet. / 3 or more.

In the air conditioner of the third invention, the dimension of the electrical component unit along the axial direction of the indoor unit fan is at least 1/3 or more of the longitudinal dimension of the indoor unit casing or the outlet. In addition, electrical equipment units are arranged.

The air conditioner according to the third aspect of the invention also has the advantages of making the indoor unit compact and improving the air conditioning performance, as in the first aspect. This air conditioner is an invention in the case where the axial direction of the fan coincides with the longitudinal direction of the indoor unit casing or the outlet. Therefore, the first and second inventions include a case where air blowing means other than a fan is used, and a case where the axial direction of the fan does not match the longitudinal direction of the indoor unit casing or the outlet. In this case as well, it is preferable that the dimension of the electrical component unit along the axial direction of the indoor unit fan is further increased, preferably at least 1/2 of the longitudinal dimension of the indoor unit casing or the outlet, and more preferably at least 2. Z 3 or more.

Further, in the air conditioner of the fourth invention, the total value of the dimensions of the electrical component units along the longitudinal direction of the indoor unit casing is at least 1 Z3 or more of the total length of the indoor unit casing in the longitudinal direction. Thus, the electrical equipment unit is arranged. In the air conditioner of the fifth invention, the total value of the dimensions of the electrical unit along the longitudinal direction of the indoor unit outlet is at least 1 Z3 or more of the total length in the longitudinal direction of the outlet. As described above, the electrical equipment unit is arranged.

Further, the air conditioner according to the sixth aspect of the present invention is the air conditioner of the present invention, wherein the indoor unit fan of each electrical component unit has The electrical equipment unit is arranged so that the total value of the dimensions along the length of the indoor unit casing or the outlet is at least 13 or more in the longitudinal direction.

In each of the first to third inventions described above, when the electrical component unit is configured as a single unit, when the electrical component unit is configured as a plurality of units arranged on substantially the same straight line, a plurality of units are provided. This includes the case where they are not aligned on the same straight line but are shifted from each other.However, in the fourth to sixth inventions, the case where the electrical component unit is constituted by a plurality of units Specifies that the length is defined by the total value of each dimension of each electrical component unit. Although not explicitly described in the first to third inventions, when the electrical component unit is configured by a plurality of units, the dimension of the electrical component unit means a total dimension. In each of the fourth to sixth inventions as well, similar to the first to third inventions, the advantages of making the indoor unit compact and improving the air conditioning performance can be obtained. In addition, since the electrical component unit is composed of a plurality of units, the degree of freedom in selecting the arrangement position can be improved, and appropriate arrangement according to the model can be performed.

In the fourth to sixth inventions as well, it is preferable that the total value of each dimension of the electrical component unit is further increased, more preferably, 1 Z2 or more of the longitudinal dimension of the indoor unit casing or the outlet, and furthermore, Preferably, it should be at least two.

An air conditioner according to one embodiment is characterized in that, in the first to sixth inventions, the electrical component unit is arranged in an air flow passage in the indoor unit casing. In the air conditioner of the above embodiment, the electric equipment unit can be cooled by the circulating air during the cooling and heating operations, and the reliability of the electric equipment can be improved.

An air conditioner according to one embodiment is the air conditioner according to any one of the first to sixth aspects, wherein the electrical component unit is arranged outside the air flow passage in the indoor unit casing. According to the harmony device, it is possible to suppress a direct increase in the ventilation resistance due to the electric component unit, and therefore, it is possible to suppress a decrease in the air conditioning performance due to the installation of the electric component unit. . In the air conditioner according to a seventh aspect of the present invention, in the electrical component unit, the longitudinal dimension of the indoor unit casing, the longitudinal direction of the air outlet, or the dimension along the axial direction of the fan is the indoor unit casing or the air outlet. It is extended so as to have a length of at least 1/3 or more of the longitudinal dimension of the power supply, and a power outlet and a suction port are arranged in an adjacent area.

In the air conditioner according to the seventh aspect, similar to the first to third aspects, there are advantages in terms of the size of the electrical component unit in that the indoor unit is compact and the air conditioning performance is improved. Further, in the indoor unit, a region where the outlet and the inlet are adjacent to each other is preferably a dead space in order to prevent a short circuit between the outlet and the inlet. By arranging the electrical components unit in the dead space in this way, the space inside the indoor unit casing can be used more effectively, and as a result, the indoor unit can be made more compact and the air conditioning performance can be improved. It is possible to further improve.

In an air conditioner according to one embodiment, in the seventh invention, the area where the outlet and the inlet are adjacent to each other is a position above the outlet, and the electrical component unit is an indoor unit in the area It is characterized in that it is arranged at a position between a drain pan provided below the heat exchanger and a front panel of the indoor unit casing.

When the drain pan is provided below the indoor heat exchanger in an area located above the air outlet of the indoor unit as in the air conditioner of the above embodiment, the drain pan and the front panel of the indoor unit casing are provided. Is a dead space area, and by arranging the electrical component unit in this area, the space inside the indoor unit casing can be used more effectively, and as a result, the indoor unit can be further It will be possible to make it more compact and further improve the air-conditioning performance.

In the air conditioner according to an eighth aspect of the present invention, in the electrical component unit, the longitudinal dimension of the indoor unit casing, the longitudinal direction of the outlet, or the dimension along the axial direction of the fan is the indoor unit casing or the outlet. It is characterized by being extended so as to have a length of at least 1 Z3 or more in the longitudinal direction, and being disposed in a region located between the front panel and the indoor heat exchanger.

In the air conditioner of the eighth aspect, the dimensions of the electrical component unit are As with the first to third inventions, the advantages of making the indoor unit compact and improving the air conditioning performance can be obtained. Further, in the present invention, the electrical component unit is disposed in a region located between the front panel and the indoor heat exchanger, that is, in the ventilation passage, but since the cross-sectional area of the electrical component unit is reduced, The increase in resistance can be suppressed. In addition, during the cooling and heating operation, the electric component unit can be cooled by the circulating air, and the reliability of the electric component can be improved.

In the air conditioner according to the ninth aspect, the electrical component unit may be configured such that a longitudinal dimension of the indoor unit casing, a longitudinal dimension of the air outlet, or a dimension along the axial direction of the fan is the indoor unit casing or It is characterized in that it extends so as to have a length of at least 1 Z3 or more in the longitudinal direction of the outlet and is arranged in a region located on the back side of the indoor unit.

In the air conditioner according to the ninth aspect of the present invention, similar to the first to third aspects of the present invention, the advantages of the compactness of the indoor unit and the improvement of the air conditioning performance can be obtained with respect to the dimensions of the electrical component unit. Further, in the present invention, since the electrical component unit is arranged in a region located on the rear side of the indoor unit, which is a completely dead space, in the indoor unit casing, the space in the indoor unit casing can be further effectively reduced. As a result, indoor units can be made more compact and air-conditioning performance can be further improved. An air conditioner according to one embodiment is characterized in that, in the ninth invention, the electrical component unit is buried in a rear-side squeal portion forming an air passage in an indoor unit casing. .

In the air conditioner of the above embodiment, since the electrical component unit is embedded in the rear scroll portion made of, for example, a foam material, the indoor unit can be installed without increasing the ventilation resistance in the air flow passage. The space inside the machine casing can be used more effectively, and as a result, the indoor unit can be made more compact and the air-conditioning performance can be further improved.

Further, in the air conditioner according to the tenth aspect, the electrical component unit is configured such that a longitudinal dimension of the indoor unit casing or a longitudinal direction of the air outlet, or a dimension along the axial direction of the fan. The heat exchanger in the indoor unit casing extends at least 13 times the length of the outlet in the longitudinal direction. And the rear heat exchanger is combined in an inverted V-shape, and the electrical component unit is arranged so as to connect the two heat exchangers at the intersection of the two heat exchangers. I have.

In the air conditioner of the tenth aspect of the present invention, similar to the first to third aspects of the present invention, the advantages of the compactness of the indoor unit and the improvement of the air conditioning performance can be obtained with respect to the dimensions of the electrical component unit. Further, according to the present invention, the electric component unit performs a function of sealing the intersection of the front heat exchanger and the rear heat exchanger. Thus, the electric component unit can also have other functions. As a result, the use of a special sealing material can be omitted, and the manufacturing cost can be reduced. In addition, if the two functions are combined, the required space is correspondingly reduced, and in this respect, the compactness of the indoor unit and the improvement of the air conditioning performance can be achieved. . If the electrical component unit is arranged so that the two heat exchangers are connected at the intersection of the two heat exchangers, a special seal member can be provided separately. The benefits of air conditioning and improved air conditioning performance can be obtained.

In one embodiment, the height dimension of the electrical component unit in the height direction orthogonal to the longitudinal direction of the indoor unit casing is 1/3 or less of the total length of the indoor unit casing in the height direction. It is preferred that With this configuration, the ventilation resistance can be further reduced, and the degree of freedom in the arrangement of the electrical component unit can be improved.

It is preferable that each dimension of the electrical component unit be longer, more preferably, at least 1 × 2, more preferably at least 2Z3, of the longitudinal dimension of the indoor unit casing or the outlet.

Further, in the air conditioner according to the eleventh aspect, an extra space extending in the longitudinal direction is formed in the indoor unit casing, and the electrical component unit having a higher dimensional ratio in the longitudinal direction is arranged along the extra space. It is characterized by.

According to the air conditioner of the eleventh aspect of the present invention, the electrical component unit having a higher dimensional ratio in the longitudinal direction is arranged by utilizing the extra space extending in the longitudinal direction in the indoor unit casing. However, it becomes possible to arrange the electrical component units in various spaces as viewed from a cross section orthogonal to the longitudinal direction of the indoor unit casing. That is, as in the past No special space is required on the side of the indoor unit casing to place electrical components. Therefore, the length in the longitudinal direction of the indoor unit can be reduced, and the indoor unit can be made compact. Conversely, in other words, in an indoor unit having the same dimensions, the space for disposing the heat exchange rnti and the fan can be increased, and therefore, the air-conditioning and generating ability can be improved as compared with the conventional case. “Increasing the dimension ratio in the longitudinal direction” means that the dimension in the longitudinal direction is larger than any of the dimensions in two directions orthogonal to the longitudinal direction, and the magnitude relation of the ratio does not matter. However, it is preferable to make the longitudinal dimension ratio of the electrical component unit larger than the longitudinal dimension ratio of the indoor unit casing.

An air conditioner according to one embodiment is characterized in that, in the eleventh invention, the electric component unit is arranged in a region where the outlet and the inlet of the indoor unit casing are adjacent to each other.

According to the air conditioner of the above embodiment, similarly to the eleventh invention, the advantages of making the indoor unit compact and improving the air conditioning performance can be obtained. In the indoor unit, the area where the outlet port and the inlet port are adjacent to each other is preferably a dead space in order to prevent a short circuit between the outlet side and the inlet side. By forming a surplus space extending in the longitudinal direction in the dead space as described above and arranging the electrical component unit, the space in the indoor unit casing can be more effectively utilized, and as a result, the indoor unit can be used. It will be possible to further reduce the size and improve the air-conditioning performance.

An air conditioner according to one embodiment is the air conditioner according to the eleventh aspect, wherein the area where the outlet and the inlet are adjacent to each other is a position above the outlet, and the electrical component unit is located in the room It is characterized in that it is arranged at a position between a drain pan provided below the heat exchanger and a front panel of the indoor casing.

When the drain pan is provided below the indoor heat exchanger in an area located above the air outlet of the indoor unit as in the air conditioner of the above embodiment, the drain pan and the front panel of the indoor unit casing are provided. Is a dead space, so if a surplus space extending in the longitudinal direction is formed in this area and the electrical component unit is placed, the space inside the indoor unit casing will be more effective. Can be used for As a result, it is possible to make the indoor unit more compact and further improve the air conditioning performance.

An air conditioner according to one embodiment is characterized in that, in the eleventh invention, the electric component unit is arranged in a region located between a front panel of an indoor unit casing and the indoor heat exchanger. I have.

In the air conditioner of the above embodiment, the advantage of compactness of the indoor unit and improvement of the air conditioning performance can be obtained in the same manner as in the first invention with respect to the size of the electrical component unit. In addition, in the present invention, the electrical component unit is disposed between the front panel and the indoor heat exchange m 、, that is, in the ventilation passage, but the electrical component unit increases its dimensional ratio in the longitudinal direction. As a result, the cross-sectional area is reduced, so that an increase in ventilation resistance can be suppressed. In addition, the electric components can be cooled by the circulating air during the cooling and heating operations, and the reliability of the electric components can be improved.

In the air conditioner of one embodiment, in the eleventh invention, the heat exchange in the indoor unit casing is formed by combining a front heat exchange ^^ and a rear heat exchange ^ II in an inverted V-shape. The electrical component unit is characterized in that it is arranged so as to connect the two heat exchangers at the intersection of the two heat exchangers.

In the air conditioner of the above embodiment, the advantage of compactness of the indoor unit and improvement of the air conditioning performance can be obtained in the same manner as in the first invention with respect to the size of the electrical component unit. In addition, in the present invention, the electrical component unit has a function of sealing the cross section between the front heat exchange and the rear heat exchange. In this way, the electrical component unit also has another function. The use of a special sealing material can be omitted, and the manufacturing cost can be reduced. Also, if the two functions are combined, the required space will be reduced accordingly, and in this regard, it is possible to make the indoor unit more compact and improve the air conditioning performance. . If the electrical component unit is arranged so that the two heat exchangers are connected at the intersection of the two heat exchangers, it is also possible to provide a dedicated seal member separately, and in this case, the indoor unit can be made more compact, The advantage of improved air conditioning performance is obtained.

An air conditioner according to one embodiment is the eleventh invention, wherein the electrical component unit is: It is characterized in that it is arranged in a back region of a scroll portion that forms a back wall of the outlet passage.

In the air conditioner of the above embodiment, the advantage of compactness of the indoor unit and improvement of the air conditioning performance can be obtained in the same manner as in the first invention with respect to the size of the electrical component unit. Further, in the present invention, since the electrical component unit is disposed in the rear area of the scroll opening located on the rear side of the indoor unit, which is a dead space, inside the indoor unit casing, the indoor unit casing is not provided. This space can be used more effectively, and as a result, indoor units can be made more compact and air-conditioning performance can be further improved.

An air conditioner according to one embodiment is characterized in that the electrical component unit is embedded in a scroll portion.

In the air conditioner of the above embodiment, since the electrical component unit is embedded in the scroll portion made of, for example, a foam material, the indoor unit casing does not increase the ventilation resistance in the air flow passage. The interior space can be used more effectively, and as a result, indoor units can be made more compact and air conditioning performance can be further improved.

Further, in the air conditioner of the twelfth invention, a heat exchanger is arranged in the indoor unit casing, and an air outlet is provided on a lower side of the indoor unit casing, and an air inlet is provided on an upper side of the air outlet. And that the electrical component unit is arranged at a position above the outlet and between the drain pan provided below the heat exchanger and the front panel of the indoor unit casing. Features.

In the air conditioner according to the twelfth aspect, a position above the air outlet of the indoor unit and between a drain pan provided below the heat exchanger and a front panel of the indoor unit casing. Is an area that must be left as a dead space in order to prevent short circuits between the discharge side and the suction side. By arranging the electrical components unit in the dead space as described above, the space in the indoor unit casing can be used more effectively, and as a result, the indoor unit can be made more compact and air conditioning can be improved. The performance can be further improved. In this case, the indoor unit casing, air outlet, suction port, and electrical component unit may be of any shape, If a long indoor unit casing is used and the air outlet and the air inlet are formed so as to extend in the lateral direction, and the horizontally long electrical equipment unit is extended along the air outlet, the effective use of space will be further enhanced. As a result, it is possible to make the indoor units more compact and further improve the air conditioning performance.

Further, in the air conditioner of the thirteenth invention, the heat exchanger in the indoor unit casing is formed by combining a front heat exchanger and a rear heat exchanger in an inverted V-shape. The electrical equipment unit is arranged so that the two heat exchangers are connected at the intersection of.

In the air conditioner according to the thirteenth aspect of the invention, the electrical component unit functions to seal the intersection of the front heat exchanger and the rear heat exchanger. By using other functions, the use of a special sealing material can be omitted, and the manufacturing cost can be reduced. Also, if the two functions are combined, the required space will be reduced accordingly, and in this regard, it is possible to make the indoor unit compact and improve the air conditioning performance . In the thirteenth aspect, the above advantage is obtained regardless of the shape of the electrical component unit. An air conditioner according to a fourteenth aspect of the present invention is characterized in that the electrical component unit is disposed at a position on the inner rear side of the indoor unit casing or at a position on the outer rear side of the indoor unit casing.

In the air conditioner according to the fourteenth aspect of the present invention, in the indoor unit casing, the electrical component unit is located at a position on the rear side of the indoor unit, which is a dead space, or a position on the external back side of the indoor unit casing. The space inside the indoor unit casing can be used more effectively because of the arrangement of the indoor units. As a result, the indoor unit can be made more compact and the air conditioning performance can be further improved. In the fourteenth aspect of the invention, the electrical component unit may have any shape. However, it is preferable that the electrical component unit be a thin plate or a rod-shaped electrical component unit, and that the electrical component unit be formed as a square or a rectangle. It may be a single unit or multiple units.

An air conditioner of one embodiment is characterized in that, in the air conditioner, the electrical component unit is provided with a shielding mechanism for scattered drain water. According to the air conditioner of the above embodiment, the drain water adversely affects the electrical component unit. It is possible to suppress the blurring, thereby improving the reliability of the electrical component unit. In addition, it is possible to prevent the injection of water for checking the drain drain function during installation work, or to suppress the adverse effects of cleaning agents and cleaning water during cleaning of indoor heat exchange on the electrical equipment unit. Reliability can be improved. The shielding mechanism against drain water only needs to be able to suppress adverse effects such as short-circuits caused by drain water, and it is not always necessary to completely prevent infiltration of drain water. This includes measures such as installing a partition and providing a partition plate.

An air conditioner of one embodiment is characterized in that, in the air conditioner, the electrical component unit is exposed to the outside when the front side of the indoor unit casing is opened. According to the air conditioner of the above embodiment, the electric component unit, that is, the electric component can be handled simply by opening the front side of the casing of the indoor unit, so that the maintenance work can be simplified.

An air conditioner according to one embodiment is characterized in that, in the air conditioner, the electrical component unit can be removed to the outside when the front side of the indoor unit casing is opened.

According to the air conditioner of the above embodiment, the electrical component unit, that is, the electrical component can be removed simply by opening the front side of the indoor unit casing, so that the component replacement work and the maintenance work can be facilitated.

An air conditioner according to one embodiment is the air conditioner, wherein the electrical component unit is provided with light emitting display means, and the light emitting display means is observed from outside through an observation window on the front side of the indoor unit casing. It is characterized in that it is arranged in a possible position.

In the air conditioner of the above embodiment, since the light emitting display means is provided in the electric component unit, the wiring length of a lead wire or the like for electrically connecting the electric component unit and the light emitting display means is conventionally reduced. It is not necessary to make the wiring as long as possible, making it possible to significantly reduce the wiring length compared to the past, reduce costs, and simplify maintenance work by placing electrical components and light-emitting display means close to each other. . The light emitting display means in this invention includes LED, 7-segment LED, LCD, etc. It is.

In the air conditioner of one embodiment, in the above-described air conditioner, if the electrical component unit is configured as a single unit, manufacture and handling are facilitated, cost is reduced, and reliability is improved. However, the electrical component units may be configured as a plurality of units arranged side by side on a substantially straight line. More specifically, an electrical component unit is composed of a plurality of printed boards, and the plurality of printed boards are mounted on the same board and electrically connected to each other. When the electrical component unit is configured as described above, the electrical component unit is preferably formed in a substantially columnar shape from the viewpoint of compactness and ease of handling. In addition, the electrical component unit is configured as described above, and is configured as a plurality of units, and the units are arranged so as to be shifted from each other both in the longitudinal direction and in the direction intersecting the longitudinal direction. You can. With this configuration, the degree of freedom in selecting the arrangement position can be improved, and proper arrangement according to the model can be performed.

An air conditioner of one embodiment is characterized in that, in the air conditioner, the electrical component unit has a longitudinal dimension substantially equal to a longitudinal dimension of the indoor unit casing or the outlet.

In the air conditioner of the above embodiment, the electrical component unit has the maximum length that can be configured, or has a length very close to the maximum length, so that the cross-sectional area can be minimized or minimized. By greatly improving the degree of freedom and greatly reducing ventilation resistance, it is possible to significantly reduce the size of indoor units and significantly improve air-conditioning performance.

An air conditioner of one embodiment is characterized in that in the air conditioner, the heat exchanger in the indoor unit casing is arranged over substantially the entire area of the indoor unit casing or the outlet.

In the air conditioner of the above embodiment, the effective area of the heat exchanger in the indoor casing can be increased, and the air conditioning performance can be improved.

In addition, if the performance is the same as before, the indoor unit casing can be made more compact than before.

The air conditioner of one embodiment is the air conditioner, wherein the electrical component unit is: It is characterized by being provided detachably.

In the air conditioner of the above embodiment, assemblability and maintainability can be improved.

An air conditioner according to one embodiment is characterized in that, in the air conditioner, the electrical component unit is arranged so that an arrangement direction thereof is orthogonal to each plate fin of the heat exchanger.

According to the air conditioner of the above embodiment, even if the distribution airflow is disturbed due to the arrangement of the electrical component units, the disturbance is in the direction parallel to the arrangement direction of the plate fins. However, an increase in flow resistance when the air flow passes through the plate fins due to the turbulence can be suppressed, and as a result, a decrease in air conditioning performance can be suppressed. An air conditioner according to one embodiment is characterized in that, in the above air conditioner, a longitudinal dimension of a fan mechanism including a fan and a fan motor is substantially equal to a longitudinal dimension of a fan mechanism of the heat exchanger. And

According to the air conditioner of the above embodiment, the ability to exchange heat with the fan can be maximized.

The indoor unit of the air conditioner is not limited to a wall-mounted type, and includes various installation forms such as a floor-standing type and a ceiling-mounted type. Therefore, the longitudinal direction may mean the left-right direction when viewed from the user, and may also mean the up-down direction or the horizontal direction. BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is a schematic front view showing a first embodiment of the air conditioner of the present invention.

FIG. 2 is a schematic front view showing a first embodiment of the air conditioner of the present invention, which is substantially the same as the above.

FIG. 3 is a schematic side view showing a first embodiment of the air conditioner of the present invention.

FIG. 4 is a sectional view showing a first embodiment of the air conditioner of the present invention.

FIG. 5 is an exploded perspective view showing the first embodiment of the air conditioner of the present invention.

FIG. 6 is an exploded perspective view of an example of an electrical component unit used in the air conditioner. FIG. 7 is a schematic plan view of the electric component unit.

FIG. 8 is a block diagram showing a circuit configuration of the electric component unit.

FIG. 9 is a cross-sectional view showing a structure in the vicinity of the light emitting display unit in the electric component unit. FIG. 10 is a block diagram showing a circuit configuration of the electric component unit.

FIG. 11 is a block diagram showing a modified example of the circuit configuration of the electrical component unit. FIG. 12 is a schematic diagram showing an example of the arrangement of the electrical component unit of the air conditioner.

FIG. 13 is a schematic diagram showing a modification of the arrangement example of the electrical component unit of the air conditioner.

FIG. 14 is a schematic diagram showing another modification of the arrangement example of the electrical component unit of the air conditioner.

FIG. 15 is a schematic diagram showing an example of the arrangement of the electric component cutout of the air conditioner.

FIG. 16 is a schematic diagram showing an example of the arrangement when the electrical component unit is divided and configured. FIG. 17 is a schematic diagram showing another example of arrangement when the electric component unit is divided.

FIG. 18 is a schematic diagram showing an example of the arrangement of the electrical component unit of the air conditioner.

FIG. 19 is a schematic diagram showing an example of the arrangement of the electrical component unit of the air conditioner.

FIG. 20 is a cross-sectional view showing a modification of the arrangement of the electrical component unit of the air conditioner. FIG. 21 is a cross-sectional view showing another arrangement example of the electrical component unit of the air conditioner. FIG. 22 is a cross-sectional view showing still another arrangement example of the electrical component unit of the air conditioner.

FIG. 23 is a cross-sectional view showing another arrangement example of the electrical component unit of the air conditioner. FIG. 24 is a cross-sectional view showing another arrangement example of the electrical component unit of the air conditioner. FIG. 25 is a schematic diagram showing an example of the arrangement of electrical component units of the air conditioner.

FIG. 26 is a schematic diagram showing an example of the arrangement of electrical component units of the air conditioner.

FIG. 27 is a schematic cross-sectional view showing an example of the arrangement of electrical component units of the air conditioner. FIG. 28 is a schematic front view showing a conventional arrangement of the electrical component unit of the air conditioner. BEST MODE FOR CARRYING OUT THE INVENTION

Next, specific embodiments of the air conditioner of the present invention will be described in detail with reference to the drawings. First, the first embodiment will be described in detail. This air conditioner has a structure consisting of an outdoor unit and an indoor unit, and the following description will be made for a wall-mounted indoor unit.

(First Embodiment)

First, the internal structure will be described with reference to FIGS. 3, 4, and 5. First figure

As shown in Fig. 5, the indoor unit casing 1 of the indoor unit includes a main unit casing 1a to which the main components such as the indoor heat exchanger 4, the cross flow fan 9, and the electrical component unit 14 are attached. It comprises a front grille 5 attached to the front of the main body casing 1a, and a front panel 7 attached further to the front of the front grille 5, and has a horizontally long shape whose overall width is longer than the vertical dimension as a whole. ing. Among these, the front panel 7 is arbitrarily removable by the user, but the main body casing la and the front grill 5 are not removable by the user. As shown in FIGS. 3 and 4, a plate fin-shaped indoor heat exchanger in which the front heat exchanger 2 and the rear heat exchanger 3 are arranged in an inverted V-shape in the indoor unit casing 1 described above. m¾ 4 is arranged. As shown in FIG. 4, the indoor unit casing 1 has a top surface suction port 6 formed on a ceiling portion of a front grille 5 and a front surface suction port 8 formed on a front panel 7. Among them, the top surface suction port 6 is formed by making the ceiling part of the front grille 5 into a lattice shape, and the front side suction port 8 has a slightly upward opening at the center of the front panel 7 in the horizontal direction. It is formed by extending. Further, inside the inverted V-shape of the indoor heat exchanger 4, a cross opening fan 9 is provided. The cross flow fan 9 is called an axial fan, and is arranged so that the axial direction thereof is along the longitudinal direction of the indoor unit casing 1. A scroll portion 10 is formed behind the cross flow fan 9, and is smoothly connected to an outlet 11 opening at a lower portion on the front side of the indoor unit casing 1.

The upper wall surface 12 of the outlet 11 is integrally formed with the drain pan 13 located at the lower part of the front heat exchanger 2, and is located at the upper part of the outlet 11 and An electrical component cutout 14 is disposed at a position on the front side of the drain pan 13, that is, at a position between the drain pan 13 and the front panel 7. A rear drain pan 15 is arranged below the rear heat exchanger. The indoor unit itself and the indoor unit casing 1 are horizontally elongated as shown in FIGS. 1 and 2, and the front intake port 8 and the air outlet 11 are disposed in the longitudinal direction of the indoor unit casing 1 (lateral direction). ). The electrical component unit 14 is located at a position above the outlet 11 and at a position in front of the drain pan 13 as shown in FIG. 1 and FIG. The casing 1 is configured to extend laterally along the longitudinal direction.

The specific structure of the electrical component unit 14 will be described with reference to FIGS. 6, 7, and 8. FIG. In FIG. 6, reference numeral 20 denotes an electrical component case for housing the electrical component unit 14, 21 denotes an electrical component cover for covering the electrical component unit 14, and the electrical component unit 14 is provided between the two components 20 and 21. Is arranged. As shown in Fig. 8, the electrical component unit 14 has a terminal board 22 as a power input section connected to a commercial power supply (AC 100 V or AC 200 V), an AC circuit section 23, and a DC It comprises a high-voltage circuit section 24, a DC low-voltage circuit section 25, a CPU control section 26, and a light-emitting display section 27, and as shown in FIGS. 6 and 7, the DC high-voltage circuit section 24 is the first The DC low voltage circuit section 25 is mounted on the second printed board 29, and the light emitting display section 27 is mounted on the display board 30, respectively. As shown in FIGS. 6 and 7, the terminal board 22, the AC circuit section 23, the DC high-voltage circuit section 24, the DC low-voltage circuit section 25, and the CPU control section 26 are arranged from right to left in the figure. Along the length, the indoor unit casing 1 is arranged in a state of being laid out in series along the longitudinal direction, and attached to the electrical component case 20. The display substrate 30 is attached to the back side of the electrical component cover 21. In this state, the electrical component case 21 is covered with the electrical component cover 21. An opening 3.1.31 is formed in the electrical component cover 21 at a position corresponding to the LED of the light-emitting display section 27, a 7-segment LED, and the like (light-emitting display means) so that the LED can be observed from the outside. Have been. In the electrical component unit 14, the first printed circuit board 28, the second printed circuit board 29, and the display board 30 are all formed as long as possible in order to form the whole horizontally long. I have. The first printed board 28 and the second printed board 29 are connected by a board-to-board connector 39 without using a harness (harnessless).

In the DC high-voltage circuit section 24 provided on the first printed circuit board 28, Heating components such as transformer 41, rectifier diode 42, and primary-side SW element 43 are used.The electrical components 41, 42, 43 that generate much self-heating are shown in Fig. 7. As described above, the heat sink is arranged above the first printed circuit board 28 extending in the vertical direction to promote the heat radiation of each of the electric components 41, 42, 43, and to affect the heat radiation to other electric components. Has been prevented. The electrical component unit 14 is housed in the electrical component case 20 and covered with the electrical component cover 21 as described above, but the upper portion of the electrical component case 20 and the upper portion of the electrical component cover 21 are also covered. A certain gap (portion indicated by reference numeral 45 in FIG. 7) is provided as a heat radiating hole, and this gap is opened toward the front side. 43 The heat dissipation is promoted. In addition, opening the heat radiating hole to the front side prevents the intrusion of drain water and maintains the reliability of the equipment.

In the above air conditioner, a DC PWM type indoor fan drive motor for driving the cross-floor fan 9 is provided on the right side in FIG. 1 and a flap control motor (stepping motor) for driving and controlling the horizontal flaps S, As shown in FIG. 8, power is supplied to the indoor fan drive motor 35 from the DC high voltage circuit section 24 and the flap control motor 36 For this, power is supplied from the DC low voltage circuit section 25. That is, as shown in FIGS. 6 and 7, the DC high-voltage circuit section 24 is arranged on the right side, and the DC low-voltage circuit section 25 is arranged on the left side. Similarly, the indoor as a high-voltage drive actuator is arranged. By locating the fan drive motor 35 on the right side and the flap control motor 36 as a low-voltage drive actuator on the left side, the circuit sections 24, 25 and the actuators 35, 36 are as close as possible. It has been arranged and the connection harness has been shortened to facilitate connection and assembly work.

Also, as shown in FIG. 8, the indoor unit is connected to the outdoor unit 37, and this connection is made by the VVF line 38. The VVF line 38 is composed of a pair of power and AC lines and a transmission line for internal / external transmission.The VVF line 38 as the internal / external connection line is connected to the terminal board 22. On the other hand, they can be inserted and connected from the right side in FIGS. 6 and 7. That is, the insertion direction of the VVF line 38 into the terminal board 22 is the longitudinal direction of the indoor unit casing 1, and This is in a direction from the AC circuit section 23 to the DC low voltage circuit section 25. By inserting the VVF line 38 in such a direction, the insertion and connection of the VVF line 38 can be facilitated, and the VVF line 38 and the above-mentioned circuit sections 23, 24, and 2 can be inserted. Interference with 5, 26 can be prevented, making it easier to route lines and reducing noise.

As shown in FIG. 9, the openings 3 1 and 31 of the electrical component cover 21 are configured so that the user can observe the exterior through the observation window 32 of the front grille 5. As shown in the figure, the front panel 5 does not cover the whole of the front grill 5 but exposes a lower portion of the front grill 5 to the outside. A characteristic of the air conditioner is that, as shown in Fig. 12, the dimension a along the longitudinal direction of the indoor unit casing 1 of the electrical component unit 14 is the longitudinal dimension of the indoor unit casing 1. The electrical component unit 14 is arranged so as to be at least 1/3 or more of the length of LA. The length a of the electrical component unit 14 is preferably as long as possible. Accordingly, the length of the longitudinal dimension LA of the indoor unit casing 1 is at least 1 Z2 or more, and more preferably, the longitudinal length of the indoor unit casing 1. Direction dimension LA must be at least 2 Z 3 or more. Most preferably, the dimension _a of the electrical component unit 14 along the longitudinal direction of the indoor unit casing 1 is set to be substantially equal to the longitudinal dimension LA of the indoor unit casing 1 (see FIG. 18). . If the maximum length that can constitute the electrical component unit 14 or the length that is very close to the maximum can be used, the cross-sectional area can be minimized or minimized, and the electrical unit 14 can be freely arranged. The drastic improvement in air conditioning and the drastic reduction in ventilation resistance make it possible to significantly reduce the size of indoor units and to significantly improve air-conditioning performance.

According to the above air conditioner, since the long and slender electric component unit 14 is disposed in the indoor unit casing 1, the electric component unit 14 is disposed on the side portion of the indoor unit casing 1 as in the related art. Does not require any special space. Therefore, the length of the indoor unit in the longitudinal direction can be reduced, and the indoor unit can be made compact. Conversely, in other words, in indoor units of the same dimensions as before, the space for installing the indoor heat exchanger 4 and the cross-floor fan 9 can be increased, thus improving the air-conditioning performance compared to the past. It becomes possible to do. The electrical component unit 14 has an elongated shape. Since it is laid out evenly on the left and right along the longitudinal direction, even if the ventilation resistance on the suction side is not achieved, it will not be an unbalanced ventilation resistance on the left and right, so the rotor condensation etc. Can be suppressed. Furthermore, the position on the upper side of the outlet 11 and the position on the front side of the drain pan 13 is a portion that needs to be left as a dead space in order to prevent a short circuit between the outlet side and the inlet side. Since the electrical components unit 14 is located in the area, the space in the indoor unit casing 1 can be used more effectively, and as a result, the indoor unit can be made more compact and the air conditioning performance can be further improved. It becomes possible.

In the air conditioner, the electrical component unit 14 is housed in the electrical component case 20 and is covered with the electrical component cover 21. Therefore, it is possible to suppress the drain water in the drain pan 13 from adversely affecting the electrical component unit 14, and thus improve the reliability of the electrical component unit 14. In addition, it is possible to suppress water injection for checking the drain drainage function during installation work, or to prevent the cleaning agent and washing water when cleaning the indoor heat exchanger 4 from adversely affecting the electrical component unit 14. The reliability of the product unit 14 can be improved. The shielding mechanism against drain water only needs to be able to suppress the adverse effects such as short-circuits caused by drain water, and it is not always necessary to completely prevent infiltration of drain water. This includes measures such as omitting one of 0 and the electrical component cover 21 or simply providing a partition plate. In the air conditioner, if the front panel 7, the front grille 5, and the electrical component cover 21 are removed, the electrical component unit 14 is exposed to the outside. In this state, inspection, replacement, repair, and the like of each electrical component can be performed from the front, so that component replacement and maintenance work can be simplified.

In the air conditioner, a light-emitting display 27 is provided on the electrical component unit 14, and the light-emitting display 27 can be observed from outside through the observation window 32 on the front side of the indoor unit casing 1. Although the light emitting display unit 27 is provided integrally with the electrical component unit 14 as described above, the electrical component unit 14 and the light emitting display unit 27 are electrically connected to each other. It is not necessary to increase the wiring length of the lead wires and other parts to connect to the conventional equipment. Maintenance work can be performed by placing parts 27 close together. Business can be facilitated. Furthermore, since the electrical component unit 14 is housed in the electrical component case 20 and covered with the electrical component cover 21 to form a single unit in a columnar shape, manufacturing and handling are facilitated. It can reduce costs and improve reliability.

FIG. 10 schematically shows the arrangement state of each circuit. As described above, the terminal board 22, the AC circuit section 23, the DC high-voltage circuit section 24, and the DC low-voltage circuit section 25 are arranged along the longitudinal direction of the indoor unit casing 1. . Fig. 11 shows an example of the modification. Fig. 11 (a) shows a layout suitable for a product having an AC-DC converter outside the machine. DC high-voltage circuit 24, DC low-voltage circuit 2 The respective circuit sections 5 are arranged along the longitudinal direction of the casing 1 of the indoor unit. Figure (b) shows a layout suitable for a product that performs step-down by a transformer or the like. Each of the terminal board 22, AC high-voltage circuit 23, AC low-voltage circuit 23a, and DC low-voltage circuit 25 The circuit section is arranged along the longitudinal direction of the indoor unit casing 1.

(Example of change in dimensions of electrical components)

As shown in Fig. 13, the dimensions of the electrical component unit 14 are such that the dimension a along the longitudinal direction of the indoor unit outlet 1 1 is at least 1 Z3 or more of the longitudinal dimension LB of the outlet 11 May be arranged. Also in this case, it is preferable that the dimension a along the longitudinal direction of the indoor unit outlet 11 of the electrical component unit 14 be further lengthened, and more preferably the longitudinal dimension LB of the indoor unit outlet 11 1 Z 2 or more, more preferably 2 Z 3 or more. It is most preferable that the dimension a along the longitudinal direction of the indoor unit outlet 11 of the electrical component unit 14 be set to a length substantially equal to the longitudinal dimension LB of the outlet 11 (FIG. 1). 8). If the maximum length that can constitute the electrical component unit 14 or the length that is extremely close to the maximum value can be used, the cross-sectional area can be minimized or minimized, and the degree of freedom of the arrangement position of the electrical component unit 14 can be reduced. As a result, the indoor unit can be made much more compact and the air-conditioning performance can be greatly improved. Also, as shown in Fig. 14, when the axial direction of the cross flow fan 9 and the longitudinal direction of the indoor unit casing 1 or the blow-out port 11 match, the cross-flow opening of the electrical component unit 14 Dimensions along the axial direction of one fan 9 a Force S, longitudinal dimension of indoor unit casing 1 or outlet 1 1 LA, LB at least 1 Z 3 or more May be. Also in this case, it is preferable that the dimension a of the electrical component unit 14 along the axial direction of the indoor unit fan 9 is further increased, and preferably, the length dimension LA, LB of the indoor unit casing 1 or the outlet 11 is 1 / 2 or more, more preferably 2/3 or more.

(Example of change regarding the shape of electrical component unit)

In the above air conditioner, the electrical component unit 14 is housed in an electrical component case 20 and covered with an electrical component cover 21 to form a single unit in a columnar shape (FIG. 18). As shown in Fig. 16, the electrical component units 14 are arranged in a substantially straight line as a plurality of units 14a, 14b, and 14c. It may be configured. Specifically, the electrical component unit 14 is composed of a plurality of printed boards, and the plurality of printed boards are mounted on the same board and are electrically connected to each other. When the electrical component unit 14 is configured as described above, the electrical component unit 14 is preferably formed in a substantially columnar shape as a whole from the viewpoint of compactness and easy handling. Also, as shown in FIG. 17, the electrical component unit 14 is configured as a plurality of units 14a, 14b, and 14c, and the units 14a, 14b, and 14c are arranged in the longitudinal direction. It may be arranged so as to be shifted from each other even in the direction (air flow direction) crossing the longitudinal direction. With such a configuration, the degree of freedom in selecting the arrangement position can be improved, and appropriate arrangement according to the model can be performed.

When the electric component unit 14 is divided into a plurality of units as described above, the total value (a + b) of the dimensions of each electric component unit 14 along the longitudinal direction of the indoor unit casing 1 is obtained. + c), arrange the electrical component unit 14 so that it is at least 1Z3 or more of the total length LA of the indoor unit casing 1 in the longitudinal direction, and set the length of the indoor unit outlet 11 of each electrical component unit 14 The electrical component units 14 are arranged so that the total value of the dimensions along the direction (a + b + c) and the total length LB of the outlet 11 in the longitudinal direction is at least 1Z3 or more, or each electrical component unit The total value of the dimensions of the 14 indoor unit fans 9 along the axial direction (a + b + c) Force The total length in the longitudinal direction of the indoor unit casing 1 or the outlet 1 1 should be at least 1Z3 or more of LA and LB. However, the electronic component unit 14 may be provided. In other words, the electrical component unit 14 In the case where the electrical equipment unit 14 is composed of units, the total length (a + b + c) of the dimensions of each electrical component unit 14 is used to define its length, so that the compactness of the indoor unit and air conditioning The advantage of improved performance is obtained. Also in this case, it is preferable that the total value (a + b + c) of the respective dimensions of the electrical component unit 14 is further increased, and preferably the longitudinal dimension LA of the indoor unit casing 1 or the air outlet 11 is preferred. , LB

12 or more, more preferably 2 Z 3 or more.

In the height direction (vertical direction) orthogonal to the longitudinal direction of the indoor unit casing 1, as shown in FIG. 19, the height dimension t of the electrical component unit 14 is equal to that of the indoor unit casing 1. Is preferably 1 Z 3 or less of the total length T in the height direction. With this configuration, the ventilation resistance can be further reduced, and the degree of freedom in the arrangement of the electrical component unit 14 can be improved.

(Example of change regarding the arrangement position of the electrical component unit)

In the above embodiment, the electrical component unit 14 is located above the outlet 11 and at the front of the drain pan 13, but the electrical component unit 14 is located at It can be changed as follows. In the following modified examples, the above description regarding the dimensions and shape of the electrical component unit 14 is applied as it is. First, in FIG. 20, the electrical component unit 14 is arranged in an air passage 33 between the front heat exchanger 2 and the front panel 7. In this case, since the cross-sectional area of the electrical component unit 14 is reduced similarly to the above, it is possible to suppress an increase in ventilation resistance. In addition, the electric component unit 14 can be cooled by the circulating air during the cooling and heating operations, and the reliability of the electric component can be improved. In addition, the electrical component unit 14 has an elongated shape and is laid out evenly in the left and right direction along the longitudinal direction. Therefore, even if the airflow resistance on the suction side becomes unbalanced, the left and right unbalanced Since it does not become wind resistance, occurrence of problems such as dew condensation on the rotor can be suppressed.

In FIGS. 21 and 22, the indoor heat exchanger 4 in the indoor unit casing 1 is configured by combining the front heat exchanger 2 and the rear heat exchange 3 in an inverted V-shape, as described above. In both cases, the electrical component unit 14 is arranged so as to connect the two heat exchangers 2 and 3 at the intersection of the front heat exchanger 2 and the rear heat exchanger 3. In the case of FIG. 21, the long side in the cross section of the electrical component unit 14 is arranged along the air flow. In the case of 2, the short side in the cross section of the electrical component unit 14 is arranged along the air flow. In this modified example, the electrical component unit 14 performs the function of sealing the intersection of the front heat exchanger 2 and the rear heat exchanger 3; By using the same function as above, the use of a special sealing material can be omitted, and the manufacturing cost can be reduced. In addition, if the two functions are shared, the required space will be reduced accordingly, and in this regard, it is possible to make the indoor unit compact and improve the air conditioning performance. Become. Also in these cases, the electric component unit 14 can be cooled by the circulating air during the cooling and heating operations, and the reliability of the electric component can be improved. When the electrical component unit 14 is arranged so that the two heat exchangers 2 and 3 are connected at the intersection of the two heat exchangers 2 and 3, it is also possible to provide a dedicated seal member separately. In addition, advantages such as downsizing of indoor units and improvement of air conditioning performance can be obtained.

In FIG. 23, the electrical component unit 14 is disposed further behind the rear heat exchanger 3 in the indoor unit casing 1. As described above, since the electrical component unit 14 is arranged in the area located on the rear side of the indoor unit, which is a dead space in the indoor unit casing 1, the indoor unit casing 1 This makes it possible to use the space more effectively, and as a result, it becomes possible to make the indoor units more compact and further improve the air-conditioning performance.

In FIG. 24, the electrical component unit 14 is arranged in the back region of the scroll portion 10 that forms the back wall of the blowout passage. As described above, in the indoor unit casing 1, since the electrical component unit 14 is disposed in the back area of the scroll portion 10 located on the rear side of the indoor unit, which is a dead space, the electrical unit 14 in the indoor unit casing 1 Space can be used more effectively, and as a result, indoor units can be made more compact and air conditioning performance can be further improved. In this case, the electrical component unit 14 is disposed outside the airflow passage in the indoor unit casing 1, but as a result, it is difficult for the electrical component unit 14 to directly increase the ventilation resistance. Therefore, it is possible to suppress a decrease in the air-conditioning performance due to the installation of the electrical component unit 14.

(Other changes regarding the dimensions, shape, and placement of the electrical component unit) In each of the above embodiments, the longitudinal dimension of the electrical component unit 14 is specified in relation to the longitudinal dimension of the indoor unit casing 1 or the outlet 11, but the longitudinal direction of the electrical component unit 14 The dimensions are not limited to the above, but can be changed by devising the arrangement. For example, by using an extra space extending in the longitudinal direction in the indoor unit casing 1 and arranging the electrical component unit 14 with a higher dimensional ratio in the longitudinal direction, it is possible to arrange in the longitudinal direction of the indoor unit casing 1 It becomes possible to arrange the electrical component units 14 in various spaces as viewed from the orthogonal cross section. That is, there is no need for a special space for arranging electrical components on the side of the indoor unit casing 1 as before. Therefore, the length in the longitudinal direction of the indoor unit can be reduced, and the indoor unit can be made compact. Conversely, in the case of an indoor unit having the same dimensions, the space for disposing the heat exchanger 4 and the fan 9 can be increased, and therefore, the air conditioning performance can be improved more than before. Become. "Increase the length ratio in the longitudinal direction" means that the length in the longitudinal direction is larger than any of the dimensions in two directions perpendicular to it, and the magnitude relation of the ratio does not matter. . However, it is preferable to make the longitudinal dimension ratio of the electrical component unit 14 larger than the longitudinal dimension ratio of the indoor unit casing 1.

In the case of carrying out the above-described embodiment, the position where the electric component unit 14 is arranged is a region adjacent to the outlet 11 and the inlet 8, a position above the outlet 11 and the drain pump 13. Position between the front panel 7 and the front panel 7 (Figure 4), the position in the air passage between the front panel 7 and the front side heat exchanger ^^ 2 (Figure 20), the front side heat exchanger 2 and the rear side heat exchanger It is preferable to set the position of intersection with FIG. 3 (FIGS. 21 and 22), the position of the rear side in the indoor unit casing 1 (FIG. 23), and the back region of the scroll portion 10 (FIG. 24). As shown in Fig. 16 and Fig. 17, when the electrical component units 14 are distributed, increase the longitudinal dimension ratio of each electrical component unit 14a, 14b, 14c. It is advisable to increase the length ratio of the entire layout in the longitudinal direction. When the electrical component unit 14 is arranged so that the two heat exchangers 2 and 3 are connected at the intersection of the two heat exchangers 2 and 3 as shown in Figs. It can also be implemented separately, and in this case also, the advantages of making the indoor unit compact and improving the air conditioning performance can be obtained. In addition, if sufficient consideration is given to the arrangement position of the electrical component unit 14, it may not be necessary to increase the dimensional ratio in the longitudinal direction as described above. For example, the position above the outlet 11 of the indoor unit and between the drain pan 13 provided below the heat exchanger 4 and the front panel 7 of the indoor unit casing 1 is located at the outlet side. In order to prevent a short circuit between the power supply unit and the suction side, this is the area that must be left as a dead space. By arranging, the space in the indoor unit casing 1 can be used more effectively, and as a result, the indoor unit can be made more compact and the air conditioning performance can be further improved. In this case, the indoor unit casing 1, the blowout port 11, the suction port 8, and the electrical component cutout 14 may have any shape, but the horizontally long indoor unit casing 1 is used. If the outlet 11 and the inlet 8 are formed so as to extend in the horizontal direction, and the horizontally long electrical component unit 14 is extended along the outlet 11, the effect of effective use of space will be further enhanced. As a result, the indoor unit can be made more compact and the air-conditioning performance can be further improved.

Further, the electrical component unit 14 is arranged so as to function to seal the intersection of the front heat exchanger 2 and the rear heat exchanger 3 (FIGS. 21 and 22). By using other functions, the use of a special sealing material can be omitted, and the manufacturing cost can be reduced. Also, if the two functions are shared, the required space will be correspondingly reduced, and in this regard, it is possible to reduce the size of the indoor unit and improve the air-conditioning performance.

In the indoor unit casing 1, the electrical component unit 14 is located at the rear side of the indoor unit, which is a dead space (Figure 23), or at the external rear side of the indoor unit casing 1 (Figure 24). By arranging the indoor units, the space in the indoor unit casing 1 can be used more effectively, and as a result, the indoor units can be made more compact and the air conditioning performance can be further improved.

If the electrical component unit 14 is placed inside the indoor unit casing 1 on the rear side where it has little effect on the airflow as described above, or if it is placed outside the indoor unit casing 1, the electrical component unit The dimensions and shape of 14 are not limited to the above embodiments. For example, as shown in FIGS. 25 and 26, the electrical component unit 14 If the unit is configured as a thin plate, it can be arranged at a position on the inner back side of the indoor unit casing 1 or a position on the outer back side of the indoor unit casing 1. In this case, the electrical component units 14 can be freely formed, such as a square, a rectangle, a bar, or the like, and in some cases, can be dispersed and arranged vertically long as shown in FIG. In this air conditioner, the electrical component unit 14 is disposed in the indoor unit casing 1 at a position on the back side of the indoor unit, which is totally dead space, or at a position on the external back side of the indoor unit casing 1. As a result, the space in the indoor unit casing 1 can be more effectively utilized, and as a result, the indoor unit can be made more compact and the air conditioning performance can be further improved.

When the electrical component unit 14 is arranged on the rear side of the indoor unit casing 1, as shown in FIG. 27, the electrical component unit 14 is attached to a scroll portion 10 made of, for example, a foamed synthetic resin material. When buried, the space inside the indoor unit casing 1 can be used more effectively without increasing the ventilation resistance in the airflow passage.As a result, the indoor unit can be made more compact and the air conditioning performance can be improved. It is possible to further improve.

(Other changes)

It is preferable that the indoor heat exchanger 4 in the indoor unit casing 1 be disposed over substantially the entire area of the indoor unit casing 1 or the outlet 11. With this configuration, the effective area of the heat exchanger 4 in the indoor unit casing 1 can be increased, and the air conditioning performance can be improved. In addition, if the performance is the same as the conventional one, the indoor unit casing 1 can be made more compact than before. Regarding the expression of "substantially the whole area", regarding the size of the indoor heat exchanger 4, this does not mean only the size of the portion having the plate fins, but the U-shaped transmission on the side. It means the dimensions including the heat pipe and the branch pipe section on the opposite side. Further, the electric component unit 14 is preferably provided detachably, and in this case, assemblability and maintainability can be improved.

Further, in the first embodiment, the electrical component unit 14 is arranged so that the arrangement direction thereof is orthogonal to each plate fin of the indoor heat exchanger 4. According to this configuration, due to the arrangement of the electrical component unit 14, the circulating air flow is disturbed. However, since this causes turbulence in the direction parallel to the arrangement direction of the plate fins, it is possible to suppress an increase in flow resistance when the airflow passes through the plate fins due to the turbulence, and as a result, the air conditioning performance is reduced. Can be suppressed. Further, since the electrical component unit 14 and the plate fins are arranged orthogonally, the internal structure becomes symmetrical, and the manufacturing cost can be reduced. Further, in the above air conditioner, the longitudinal dimension of the fan mechanism including the fan 9 and the fan motor is set to be substantially equal to the longitudinal dimension of the fan mechanism of the indoor heat exchanger 4. With the configuration, the capacity of the fan 9 and the indoor heat exchanger 4 can be maximized. The longitudinal dimension of the indoor heat exchanger 4 as described above refers to not only the portion of the indoor heat exchanger 4 having the plate fin but also the U-shaped heat transfer tube at both ends. Means that.

The indoor unit of the air conditioner is not limited to a wall-mounted type, and includes various installation forms such as a floor-standing type and a ceiling-mounted type. Therefore, the longitudinal direction may mean the left-right direction when viewed from the user, and may also mean the up-down direction or the horizontal direction. Further, in this specification, the expression “horizontally long” means that wZ h> 1 when the vertical dimension is h and the horizontal dimension is w.

Claims

The scope of the claims

1. Set the electrical component unit (14) so that the dimension of the electrical component unit (14) along the longitudinal direction of the indoor unit casing (1) is at least 1Z3 or more of the longitudinal dimension of the indoor unit casing (1). 14) An air conditioner characterized by including.

2. Make sure that the length of the electrical unit (14) along the longitudinal direction of the indoor unit outlet (11) is at least 1Z3 or more of the longitudinal dimension of the outlet (11). An air conditioner comprising a unit ( ₁₄ ).

3. The dimension of the electrical component unit (14) along the axial direction of the indoor unit fan (9) should be at least 1Z3 or more of the longitudinal dimension of the indoor unit casing (1) or the air outlet (11). An air conditioner characterized by further comprising an electrical component unit (14).

4. Make sure that the total length of the electrical unit (14) along the longitudinal direction of the indoor unit casing (1) is at least 1Z3 or more of the total length of the indoor unit casing (1) in the longitudinal direction. Air conditioner characterized by arranging product units (14).

5. Make sure that the total length of the electrical unit (14) along the longitudinal direction of the indoor unit outlet (11) is at least 1Z3 or more of the overall length of the outlet (11) in the longitudinal direction. An air conditioner comprising an electrical component unit (14).

6. The sum of the axial dimensions of the indoor unit fan (9) of each electrical component unit (14) is at least 1Z3 or more of the total length in the longitudinal direction of the indoor unit casing (1) or the air outlet (1 1). An air conditioner characterized by arranging an electrical component unit (14) so as to make it easier.

7. The air conditioner according to any one of claims 1 to 6, wherein the electrical component unit (14) is disposed in an air flow passage in an indoor unit casing (1).

8. The air conditioner according to any one of claims 1 to 6, wherein the electrical component unit (14) is disposed outside the air flow passage in the indoor unit casing (1).

9. The electrical component unit (14) has the length of the indoor unit casing (1), the length of the air outlet (11), or the length of the fan (9) along the axial direction. It extends so that it has a length of at least 1Z3 or more in the longitudinal direction of the single (1) or outlet (11), and is located in the area where the outlet (11) and the inlet (8) are adjacent to each other. An air conditioner characterized by being performed.

10. The area where the outlet (1 1) and the inlet (8) are adjacent to each other is defined as the outlet (1

1) In the upper position, the electrical component unit (14) is located in the area, and the drain pan (13) provided below the indoor heat exchanger (4) and the front of the indoor unit casing (1). 10. The air conditioner according to claim 9, wherein the air conditioner is arranged at a position between the panel and the panel.

1 1. The electrical component unit (14) has an indoor unit casing (1) with the longitudinal dimension of the air outlet (1 1) or the fan (9) along the axial direction. The casing (1) or the outlet (1 1) is extended so as to be at least 1/3 of the longitudinal dimension of the outlet (1) and between the front panel (a) and the indoor heat exchange m¾ (4). An air conditioner, wherein the air conditioner is arranged in a region where the air conditioner is located.

12. The electrical component unit (14) is designed so that the longitudinal dimension of the indoor unit casing (1), the longitudinal dimension of the air outlet (11), or the dimension of the fan (9) along the axial direction is the indoor unit casing. (1) It is characterized in that it extends so as to have a length of at least 13 or more of the longitudinal dimension of the outlet (11) and is located in the area located on the back side of the indoor unit. Air conditioner.

13. The air conditioner according to claim 12, wherein the electrical component unit (14) is embedded in a rear scroll portion (10) that forms an air passage in the indoor unit casing (1).

14. The electrical component unit (14) has the length of the indoor unit casing (1) or the length of the air outlet (1 1) or the length of the fan (9) along the axial direction. The heat exchanger (4) in the indoor unit casing (1) is extended so as to be at least 1Z3 or more in length in the longitudinal direction of the outlet (1) or the outlet (11). (2) and the rear heat exchanger (3) are combined in an inverted V-shape. The electrical component unit (14) is located at the intersection of both heat exchangers (2) and (3). An air conditioner, wherein the air conditioners (2) and (3) are arranged to be joined.

15. In the height direction perpendicular to the longitudinal direction of the indoor unit casing (1), the dimension of the electrical component unit (14) in the height direction is 1 Z 3 of the total length of the indoor unit casing (1) in the height direction. The air conditioner according to any one of claims 1 to 14, wherein:

16. A surplus space extending in the longitudinal direction is formed in the indoor unit casing (1), and the electric component unit (14) having the above-mentioned longitudinal dimension ratio is increased along the surplus space. Air conditioner.

1 7. The electrical component unit (14), wherein the outlet (11) and the inlet (8) of the indoor unit casing (1) are arranged adjacent to each other.

16 air conditioners.

18. The area where the outlet (1 1) and the inlet (8) are adjacent to each other is the position above the outlet (1 1), and the electrical component unit (14) 18. The air conditioner according to claim 17, wherein the air conditioner is disposed between a drain pan (13) provided below the internal heat exchanger (4) and a front panel (7) of the indoor casing. Machine.

19. The above electrical component unit (14) is installed on the front panel of the unit casing (1).

17. The air conditioner according to claim 16, wherein the air conditioner is arranged in a region located between the indoor heat exchange (7) and the indoor heat exchange (4).

20. The heat exchanger (4) in the indoor unit casing (1) consists of a front heat exchanger (2) and a rear heat exchanger (3) combined in an inverted V-shape. (1

17. The air conditioner according to claim 16, wherein 4) is arranged so as to connect the two heat exchangers (2) and (3) at an intersection of the two heat exchangers (2) and (3).

21. The air conditioner according to claim 16, wherein the electrical component unit (14) is disposed in a region behind a scroll portion (10) constituting a back wall of the air outlet passage.

22. The air conditioner according to claim 21, wherein the electrical component unit (14) is embedded in a scroll portion (10).

23. Arrange the heat exchanger (4) inside the indoor unit casing (1), and place the air outlet (1 1) at the lower part of the indoor unit casing (1) and at the upper side than the air outlet (1 1). Suction port

(8) are formed, and the drain pan (13) and the indoor unit casing (1) are located at the upper part of the outlet (11) and below the heat exchanger (4). An air conditioner characterized by disposing an electrical component unit (14) between the front panel (7).

24. The heat exchanger (4) in the indoor unit casing (1) consists of a front heat exchanger (2) and a rear heat exchanger (3) combined in an inverted V-shape, Intersection of bowls (2) and (3) An air conditioner characterized in that an electrical component unit (14) is arranged so as to connect the two heat exchangers (2) and (3) at a position.

25. An air conditioner characterized in that the electrical component unit (14) is arranged at a position on the inner rear side of the indoor unit casing (1) or at a position on the outer rear side of the indoor unit casing (1).

26. The air conditioner according to any one of claims 10, 18, and 23, wherein the electrical component unit (14) is provided with a shielding mechanism for scattered drain water.

27. The electrical component unit (14) is exposed to the outside when the front side of the indoor unit casing (1) is opened, according to any one of claims 10, 11, 18, 19, and 23. Air conditioner.

28. The electrical component unit (14) according to any of claims 10, 11, 18, 19, and 23, wherein the electrical component unit (14) is removable when the front side of the indoor unit casing (1) is opened. Or air conditioner.

29. The electrical component unit (14) is provided with a light-emitting display means (27). The light-emitting display means (27) is connected to the observation window (3) on the front side of the indoor unit casing (1).

The air conditioner according to any one of claims 10, 11, 18, 19, and 23, wherein the air conditioner is arranged at a position observable from the outside through (2).

30. The air conditioner according to any one of claims 1 to 3, and 7 to 29, wherein the electrical component unit (14) is configured as a single unit.

31. The air conditioner according to any one of claims 1 to 29, wherein the electrical component unit (14) is configured as a plurality of units arranged side by side on substantially the same straight line.

32. The air conditioner according to claim 31, wherein each of the units is mounted on a same substrate and connected to each other.

33. The air conditioner according to any one of claims 30 to 32, wherein the electrical component unit (14) is formed in a substantially columnar shape.

34. The electrical component unit (14) is configured as a plurality of units, each unit being offset from each other both in the longitudinal direction and in the direction crossing the longitudinal direction. The air conditioner according to any one of claims 1 to 29, wherein:

35. The electrical component unit (14) according to any one of claims 1 to 34, wherein the electrical component unit (14) has a longitudinal dimension substantially the same as a longitudinal dimension of the indoor unit casing (1) or the outlet (11). Air conditioner.

36. The heat exchanger (4) in the indoor unit casing (1) is disposed over substantially the entire area of the indoor unit casing (1) or the outlet (11). Any of the air conditioners.

37. The air conditioner according to any one of claims 1 to 36, wherein the electrical component unit (14) is detachably provided.

38. The electrical component unit (14) according to any one of claims 1 to 37, wherein each of the plate fins of the heat exchanger (4) is arranged so that its arranging direction is orthogonal to the fin. Air conditioner.

39. The method according to claim 1, wherein the longitudinal dimension of the fan mechanism including the fan (9) and the fan motor is substantially equal to the longitudinal dimension of the fan mechanism of heat exchange ^^ (4). Any air conditioner.