KR100377749B1 - Thru the wall type air conditioner - Google Patents

Abstract

The present invention relates to a wall-mounted air conditioner. The present invention uses the turbo fan 83 to form an indoor side airflow of the wall-mounted air conditioner. The turbo fan 83 is integrally provided with a shroud 86, which is a configuration for forming airflow, so that a configuration for forming and guiding airflow is not necessary. Therefore, the air discharged in the centrifugal direction with respect to the rotational direction of the turbo fan 83 is transferred to the entire discharge guide 64 provided above the turbo fan 83 to discharge the heat-exchanged air through a larger area. It becomes possible.

Description

Wall embedded air conditioner {Thru the wall type air conditioner}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner, and more particularly, to a wall-mounted air conditioner employing a turbo fan to suck, heat exchange, and discharge air in a room.

The wall-mounted air conditioner forms a through hole penetrating a space for air conditioning and a wall partitioning the outside, and is installed and used in the through hole.

1 is an exploded perspective view showing a main configuration of a wall-mounted air conditioner according to the prior art. Looking at the internal structure of the wall-mounted air conditioner with reference to this, the base fan (1) forms the bottom of the air conditioner.

The front grill 3 is installed on the indoor front surface of the base fan 1. The front grill 3 forms a front appearance of the air conditioner and is mounted on the front of the cabinet 30 which will be described below substantially. On one side of the front grill (3) is formed a suction portion (3i) is the air of the space for air conditioning is sucked into the interior of the air conditioner, the other side is discharged back to the room heat exchanged air from the air conditioner The discharge part 3e to be formed is formed. On the other hand, a suction grill 4 is provided in the suction part 3i. A control panel portion 3c for manipulating the operation of the air conditioner is provided below the discharge portion 3e.

An indoor heat exchanger 7 is installed inside the front grill 3. The indoor heat exchanger (7) is for heat exchange between the air sucked through the suction part (3i) of the front grill (3) and the working fluid of the air conditioning cycle, more precisely the air guide (9) It is installed in).

Referring to the configuration of the air guide (9) in which the indoor heat exchanger (7) is installed, the air guide (9) is provided with a through hole (10) through which the air passing through the indoor heat exchanger (7) is formed, A discharge guide 9e is formed at a position corresponding to the discharge portion 3e of the front grill 3. The bottom surface of the air guide (9) is formed with a drainage structure (9 ') for draining the condensate generated in the indoor heat exchanger (7).

In combination with the air guide 9, a scroll 11 is installed. A flow guide surface 12 is formed on the inner surface of the scroll 11 to guide the airflow formed by the sirocco fan 19 to be described below.

The control box 14 is provided with various electrical components for controlling the air conditioner by penetrating the interior of the air guide 9 and the scroll 11 corresponding to the control panel part 3c of the front grill 3. ) Is installed.

Next, in close contact with the rear surface of the scroll 11, a barrier 15 is formed to partition the indoor side and the outdoor side of the air conditioner. The barrier 15 divides the indoor side and the outdoor side of the air conditioner so that the indoor side and the outdoor side are not influenced by each other.

Next, at the rear end of the barrier 15, that is, the outdoor side, a motor mount 18 is mounted on the base fan 1, and a motor 17 is installed thereon. The motor 17 is formed such that its shaft protrudes to the indoor side and the outdoor side, respectively, and one side shaft penetrates the barrier 15 and protrudes into the interior scroll 11. The sirocco fan 19 is installed on the shaft protruding toward the indoor side. The sirocco fan 19 serves to suck air in the space for air conditioning and to pass the indoor heat exchanger 7 to guide the discharge guide 9e to be discharged back into the room.

The blowing fan 21 is installed on the outdoor shaft of the motor 17. The blower fan 21 sucks air from the outside to heat exchange while passing through the outdoor heat exchanger 27 outside the air conditioner.

On the other hand, the outdoor side is provided with a shroud 23 for guiding the air flow formed by the blowing fan 22. The shroud 23 serves to evenly deliver the air sucked from the outside to the outdoor heat exchanger (27). The shroud 23 is formed with a through hole 23 ′ in which the blowing fan 21 is installed. Reference numeral 24 denotes a cover forming the upper surface of the shroud 23. And reference numeral 25 is a brace that connects the upper end of the air guide 9 and the shroud 23 to secure the installation state.

Next, the outdoor heat exchanger 27 is installed on the base fan 1 and installed at the outermost side of the outdoor side. The outdoor heat exchanger (27) is to allow heat exchange between the air sucked outdoors and the working fluid.

As described above, the cabinet 30 is provided to shield various components installed on the base fan 1. The cabinet 30 is installed to be fastened with the base fan 1, and shields both sides and the top of the air conditioner.

Although not shown in the drawings, the outdoor side includes a compressor, an expansion valve, and the like, which are components of an air conditioning cycle.

The wall-mounted air conditioner having such a configuration is used so that a portion corresponding to the indoor side faces a space for air conditioning, and a portion corresponding to the outdoor side faces the outdoor side.

On the other hand, looks at the air conditioner is operated for cooling. That is, when the air conditioner is driven, the air conditioning cycle is operated and the motor 17 rotates the sirocco fan 19 and the blowing fan 21.

Therefore, in the indoor side, air in the space for air conditioning is sucked through the suction part 3i of the front grill 3 and transferred to the indoor heat exchanger 7. The air passes through the indoor heat exchanger 7 and exchanges heat with the working fluid to a relatively low temperature.

And the heat exchanged air by the rotation of the sirocco fan 19 is sucked into the sirocco fan 19 through the through hole 10 of the air guide (9). And discharged from the sirocco fan 19 is guided along the inside of the scroll 11 is delivered to the discharge guide (9e). The air delivered to the discharge guide 9e is discharged to the space for air conditioning through the discharge portion 3e of the front grill 3.

On the other hand, the outdoor side is the operation of discharging the heat received by the working fluid from the indoor heat exchanger (7) to the outside. That is, it is sucked into the outdoor side of the external air processing unit conditioner by the blower fan 21, guided by the shroud 23, and passes through the outdoor heat exchanger 27 to exchange heat with a working fluid to heat heat to the outside. Will be released.

However, the integrated air conditioner according to the prior art as described above has the following problems.

The sirocco fan 19 used in the prior art is designed for high air volume, and is formed of a short number of blades having a curvature opposite to the rotational direction, and thus has a flow guide surface having an appropriate curvature inside the scroll 11. 12) should be formed. Such a design of the flow guide surface 12 has a problem that it takes a lot of time to design because it must go through a lot of experiments according to the design conditions of the peripheral components.

The air discharged upstream of the internal flow guide surface 12 of the scroll 11 of the air discharged in the centrifugal direction from the sirocco fan 19 continues to be guided along the scroll 11, but the sirocco fan 19 Since the air is discharged to the entire inner surface of the scroll 11 in the rotational direction, the air pressure increases toward the downstream of the air discharged from the sirocco fan 19 to act as a resistance element to the rotation of the sirocco fan 19. .

Since the air is concentrated at the downstream portion of the flow, the air is guided to one side of the discharge guide 9e, so that the air flows. As a result, when the whole of the discharge guide 9e is viewed, the air is not uniformly discharged.

Accordingly, an object of the present invention is to solve the problems of the prior art as described above, and to provide an air conditioner having a simpler design.

Another object of the present invention is to allow the air to be evenly discharged from the discharge unit to the room even in a simple configuration.

Another object of the present invention is to minimize the power consumption of the air conditioner.

1 is an exploded perspective view showing the main configuration of the wall-mounted air conditioner according to the prior art.

Figure 2 is an exploded perspective view showing the main configuration of the wall-mounted air conditioner according to the present invention.

Figure 3 is a perspective view showing a turbofan constituting a preferred embodiment of the present invention.

Figure 4a is a front sectional view showing the configuration of a turbofan of the embodiment of the present invention.

Figure 4b is a side cross-sectional view showing the configuration of a turbofan of the embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

50: base fan 53: indoor heat exchanger

57: heater 58: heater cover

60: air guide 62: drainage structure

64: discharge guide 70: scroll

73: barrier 75: control box

80: motor mount 81: motor

83: turbofan 84: hub

85: blade 86: shroud

90: shroud 95: outdoor heat exchanger

100: cabinet

According to a feature of the present invention for achieving the object as described above, the present invention is located in the room side partitioned by the partition member is sucked through the front of the air conditioner of the air delivered to the space for air conditioning again An indoor heat exchanger of a heat exchange cycle for heat exchange, and a heat exchanger for heat exchange of air, which is located at an outdoor side partitioned by the partition member, is sucked from both sides of a rear side of an air conditioner and is discharged back to the outside through the center of the rear side of the air conditioner And a turbo fan for providing power for the flow of heat exchanged air while passing through the indoor heat exchanger, and a blower fan for providing power for the flow of heat exchanged air while passing through the outdoor heat exchanger. do.

The turbofan is a hub for connection with a motor, a blade having a predetermined circumferential interval around the hub and having an inlet width larger than the outlet width and a backward curvature of the outlet angle smaller than 90 degrees; One side of the inlet to the outlet is configured to include a shroud to guide the air flows installed in the blade.

Between the indoor heat exchanger and the air guide, a heater seated in a heater cover, and between the air guide and the partition member, the turbo fan is installed inside the heat exchanger and is heat-exchanged to partition the passage of air and the air flowing by the turbo fan. A scroll is further provided.

The air conditioner according to the present invention having such a configuration provides a driving force for air flow in the indoor side by using a turbo fan, so that a configuration for guiding the flow of air is not required separately, and the air volume can be maintained uniformly. As a result, the power consumption can be reduced.

Hereinafter, a configuration of a preferred embodiment of an air conditioner according to the present invention as described above will be described in detail with reference to the accompanying drawings.

As shown in FIG. 2, in the present embodiment, the base fan 50 forms the bottom of the air conditioner. The base fan 50 is provided with various components forming an air conditioner. A front grill (not shown) is installed on the indoor side of the base fan 50, through which the air of the space for air conditioning is sucked into the indoor side of the air conditioner, and the heat-exchanged air is discharged into the space.

And the rear of the front grill is provided with an indoor heat exchanger 53 on the air guide 60 to be described below. The indoor heat exchanger (53) constitutes a heat exchange cycle in which a working fluid flows therein to exchange heat with air passing through the indoor heat exchanger (53).

At the rear of the indoor heat exchanger 53, a heater 57 used as an auxiliary heat source during heating operation is installed. The heater 57 is installed in the air guide 60 in a state seated in the heater cover 58. The heater cover 58 is formed with a through hole 59 for guiding air passing through the indoor heat exchanger 53.

The air guide 60, in which the indoor heat exchanger 53 and the heater 57 are installed, is installed on the base fan 50. The air guide 60 is provided for draining condensed water generated by the indoor heat exchanger 53 on the lower surface thereof. Drainage structure 62 is provided. The drainage structure 62 is formed to be inclined from one end to the other end when the air guide 60 is viewed from the front side, and the rib supporting the lower surface of the indoor heat exchanger 53 at an inclined portion thereof extends in parallel with each other. Formed. At the upper end of the air guide 60, a discharge guide 64 for guiding the air discharged to the room after heat exchange is formed.

A scroll 70 is installed to be coupled to the air guide 60 at the rear end of the air guide 60. The scroll 70 is formed of a heat insulating material, and the turbo fan 84 to be described below is located therein.

On the other hand, the rear end of the scroll 70 is provided with a barrier 73 for partitioning the indoor side and the outdoor side of the air conditioner. The barrier 73 is preferably formed by processing a metal plate to have a predetermined shape. The control box 75 is mounted on one side of the barrier 73. The control box 75 is a part in which various components for driving and controlling the air conditioner are installed.

The motor mount 80 is seated on the outdoor side partitioned by the barrier 73, and the motor 81 is mounted on the motor mount 80. The motor 81 is installed so that the indoor shaft 82 and the outdoor shaft 82 'extend in opposite directions, respectively, and the indoor shaft 82 penetrates the barrier 73 to the indoor side. Is installed.

The indoor shaft 82 is provided with a turbo fan 83 that provides a driving force for the air flow in the indoor side of the air conditioner. In addition, a blower fan 88 is installed on the outdoor shaft 82 ′ of the motor 81 to provide a motive force for air flow on the outdoor side.

Here, the turbo fan 83 for producing the air flow on the indoor side will be described. The turbo fan 83 sucks air through the front grill in the indoor side, that is, the space for air conditioning, heat exchanges it through the indoor heat exchanger 53, and provides a driving force for discharging the air to the space for air conditioning again. will be.

An example of such a turbofan 83 is shown well in FIG. 3. As shown in the drawing, a hub 84 for connection with the rotation shaft 82 of the motor 81 is provided at one side center. At the end where the hub 84 extends in the circumferential direction, a plurality of blades 85 are installed along the edge thereof. The blade 85 is formed orthogonal to the portion extending from the hub 84.

The blade 85 has a shape of a backward curved blade having a blade exit angle β2 of less than 90 degrees and an internal / external ratio d1 / d2 of less than 0.8. In addition, the blade 85 is formed to have a rotating streamlined structure, and the width of the inlet 85i at which air is guided to the blade 85 is formed larger than the width of the outlet 85e.

And the shroud 86 is integrally formed on the blade 85 on one side of the blade 85, that is, on the opposite side to which the hub 84 is provided. The shroud 86 is formed to connect all of the plurality of blades 85, and in particular, is connected to the blades 85 along the narrowing side of the blades 85. The shroud 86 serves to guide the flow of air flowing along the blade 85 so that air passing between the blades 85 adjacent to each other is discharged with a predetermined wind pressure.

Meanwhile, the blade exit angle β2 on the hub 84 side and the blade entrance angle β1 on the shroud 86 side may be formed differently from the blade 85. This makes the flow between the blades 85 uniform, resulting in better noise characteristics.

Next, a shroud 90 for guiding the air flow formed by the blowing fan 88 is installed on the base fan 50. The through-hole 91 in which the blowing fan 88 is located is formed through the center of the shroud 90. The shroud cover 93 is provided at the top of the shroud 90.

The outdoor heat exchanger 95 is installed on the base fan 50 so as to face the shroud 90. The outdoor heat exchanger 95 allows the air sucked from the outside of the air conditioner by the blower fan to exchange heat with the working fluid.

The various components described above are shielded from the outside by the cabinet 100. The cabinet 100 is fastened to the base fan 50 at both lower ends thereof, and forms an upper side and both sides of the air conditioner.

Hereinafter, the operation of the air conditioner according to the present invention having the configuration as described above in detail.

In the present invention, the turbo fan 83 to create a flow of air is sucked into the interior of the air conditioner in the indoor space for air conditioning, the heat exchanged while passing through the indoor heat exchanger 53 and discharged back to the indoor space I use it. When the turbo fan 83 is used, it is not necessary to form a guide surface inside the scroll 70 to guide the air flow as in the conventional nature of the turbo fan 83, so that the manufacture of the scroll 70 becomes easier. .

Here, the air flow in the indoor side of the embodiment of the present invention will be described taking the case of cooling as an example. When the heat exchange cycle of the air conditioner is operated, the refrigerant, which is the working fluid of the heat exchange cycle, becomes relatively low and is delivered to the indoor heat exchanger 53.

In addition, the air of the space for cooling is sucked into the air conditioner by the operation of the turbo fan 83, and heat exchanges while passing through the indoor heat exchanger 53 to form low temperature and low humidity, and through the through hole 59. It is delivered to the turbo fan 83.

The air delivered to the turbo fan 83 is sucked in the rotation axis direction of the turbo fan 83, flows along the blade 85, and is discharged in the centrifugal direction in which the turbo fan 83 rotates.

Here, the shroud 86 is integrally formed in the turbo fan 83 to serve to guide the air flowing between the blades 85 adjacent to each other. Therefore, the airflow is formed without being configured to guide the flow of air separately, is directly discharged from the turbo fan 83 is delivered to the entire discharge guide 64 on the upper side of the turbo fan 83. Of course, the airflow discharged from the lower side of the air guide 60, not the discharge guide 64 direction, is also discharged along the rotational direction of the turbo fan 83 and moved to the discharge guide 64 to the interior through the front grill. Discharged.

And it will be described that the heat exchange in the outdoor heat exchanger (95). The outdoor heat exchanger (95) serves to transfer the heat of the room received from the indoor heat exchanger (53) to the outside during the cooling operation, and the blower fan (88) forcibly sucks the outdoor air. The heat exchange is performed in the outdoor heat exchanger (95).

The blower fan 88 is driven by the motor 81 together with the turbofan 83 to suck outdoor air into the air conditioner and pass the outdoor heat exchanger 95. By doing so, the indoor heat exchanger 53 discharges the indoor heat received by the working fluid to the outside to cool the indoor space.

On the other hand, the air conditioner of the present invention can also be used for heating, in which case the heat exchange cycle is operated as opposed to the cooling time and the heater 57 is used as an auxiliary heat source.

Air conditioner according to the present invention as described in detail above is relatively simple configuration for forming the flow of air in the room side. That is, since the shroud is formed in the turbofan itself, the airflow guide surface for forming the airflow does not need to be designed separately, thereby simplifying the design of the air conditioner.

In addition, since the airflow is not driven to one side by the structure for forming the airflow, there is an effect that it is possible to discharge the heat-exchanged air into the room through a larger area.

In addition, since the airflow formed by the turbofan does not interfere with the rotation of the turbofan, there are relatively few factors acting as a resistance to the rotation of the turbofan, thereby reducing the power consumption by the turbofan.

Claims (3)

An indoor heat exchanger of a heat exchange cycle for exchanging air, which is located on an indoor side partitioned by a partition member and is sucked through the front of the air conditioner and is delivered to a space for air conditioning, An outdoor heat exchanger of a heat exchange cycle for heat exchange of air positioned at an outdoor side partitioned by the partition member and sucked from both rear sides of an air conditioner and discharged back to the outside through the rear center of the air conditioner; A turbofan for providing power for the flow of heat-exchanged air while passing through the indoor heat exchanger; Wall mounted air conditioner comprising a blower fan for providing power for the flow of heat exchanged air while passing through the outdoor heat exchanger. The method of claim 1, wherein the turbofan Hub for connection to the motor, A blade installed at a predetermined circumferential interval around the hub and having an inlet width larger than the outlet width and an outlet angle of less than 90 degrees; And a shroud configured to guide air flowing in and installed in the blade to connect the inlet to the outlet of one side of the blade. According to claim 1, Between the indoor heat exchanger and the air guide of the heater seated in the heater cover, between the air guide and the partition member is installed inside the turbo fan and heat exchanged by the flow of the turbo fan Wall mounted air conditioner, characterized in that the scroll is further provided for the insulation and partition of the flow path.