WO2019239630A1

WO2019239630A1 - Outdoor unit

Info

Publication number: WO2019239630A1
Application number: PCT/JP2019/004237
Authority: WO
Inventors: 道生瀬津; 神田　聡
Original assignee: シャープ株式会社
Priority date: 2018-06-15
Filing date: 2019-02-06
Publication date: 2019-12-19
Also published as: CN112219068A; JPWO2019239630A1

Abstract

Provided is an outdoor unit (100) for an air conditioner. The outdoor unit (100) has a housing (109), a fan (130) arranged inside the housing (109) and an electrical board (120) arranged beside the fan (130). The electrical board (120) is held so as to be tilted in the direction of the fan (130) from a vertically upright state.

Description

Outdoor unit

The present invention relates to an outdoor unit of an air conditioner.

The outdoor unit of an air conditioner houses a heat exchanger, a blower, and the like in a casing, supplies outside air to the heat exchanger, and performs heat exchange with the refrigerant in the refrigeration cycle. Various technologies related to the outdoor unit are disclosed.

For example, Japanese Unexamined Patent Application Publication No. 2014-43974 (Patent Document 1) discloses an outdoor unit of a refrigeration apparatus. According to Patent Document 1, the internal space of the outdoor unit of the refrigeration apparatus is partitioned by a partition plate into a blower room in which an outdoor fan is disposed and a machine room in which electrical components are disposed. The electrical component casing has a third side surface, an upper surface, and a protrusion. The third side surface faces the machine room and covers the side of the electrical component. The upper surface covers the upper part of the electrical component while leaving a gap with the electrical component. The protrusion is provided in the vicinity of the upper surface and protrudes closer to the fan chamber than the third side surface. The third side surface of the electrical component casing and the protrusion form at least one downward opening that communicates the machine room and the blower room.

In addition, JP-A-7-198171 (Patent Document 2) discloses an outdoor unit for a refrigeration apparatus. According to Patent Document 2, when a window hole is formed in the upper part of a metal (steel plate) side plate, a tongue piece is formed by cutting into a substantially U-shape, and the lower part of the tongue piece is not separated from the side plate. Bend inward. Thereby, the window hole of the side plate can be opened, and at the same time, the tongue piece for mounting the terminal board and the ground terminal can be formed. Accordingly, a metal mounting plate that has been separately used for mounting a terminal board or the like is not required.

In addition, Japanese Unexamined Patent Application Publication No. 2017-9263 (Patent Document 3) discloses an air conditioner. According to Patent Document 3, an air conditioner including an outdoor unit having an electrical component box therein, an introduction port for introducing outside air into the electrical component box is provided on a side surface of the main unit of the outdoor unit, An electrical cover is arranged on the side of the cover so as to cover the inlet, the cooling cover is arranged at the upper part for taking in air introduced into the inlet, and an opening for passing the refrigerant pipe is arranged at the lower part. An inner cover that collides outside air taken in from the cooling inlet is disposed between the cooling inlet and the inlet, and the interior of the electrical cover has an upper part with the cooling inlet and a lower part with the opening. The partition plate is arranged so as to be in contact with the inner surface of the electrical cover, and a storage region for storing water is formed in an area surrounded by the upper surface of the partition plate, the electrical cover, and the side surface of the main body. There is a drain hole for draining the accumulated water. Eclipsed.

In addition, JP 2011-21776 A (Patent Document 4) discloses an outdoor unit. According to Patent Document 4, the outdoor unit covers a casing having a side plate and a top plate, a terminal block accommodated in the casing, a wiring opening opened near the terminal block, and a wiring opening. And a closing valve cover. The upper end portion of the shut-off valve cover includes an outer wall portion arranged outside the edge portion of the top plate, an inner wall portion arranged inside the edge portion of the top plate, and an outer wall portion and an inner wall portion. A concave portion provided between them is formed. Then, at the position above the wiring opening, the edge of the top plate is inserted into a recess formed in the upper end of the closing valve cover, and the upper portion of the wiring opening on the side plate is connected to the inner wall portion. Arranged inside.

JP 2014-43974 A JP-A-7-198171 JP 2017-9263 A Japanese Unexamined Patent Publication No. 2011-21776

An object of one embodiment of the present invention is to provide a technique for efficiently arranging electrical components.

In one embodiment of the present invention, an outdoor unit of an air conditioner is provided. The outdoor unit includes a housing, a fan disposed in the housing, and an electrical board disposed on the side of the fan. The electrical board is held in a state where it is tilted in the direction from the vertical direction to the fan direction.

In one aspect of the present invention, a technique for efficiently arranging electrical components is provided.

It is a perspective view which shows the external appearance of the outdoor unit of the air conditioner concerning 1st Embodiment. It is a front view which shows the external appearance of the outdoor unit of the air conditioner concerning 1st Embodiment. It is a front view which shows the state which removed the front panel and upper surface panel of the outdoor unit of the air conditioner concerning 1st Embodiment. It is a perspective view which shows the state which removed the front panel, upper surface panel, and shielding board of the outdoor unit of the air conditioner concerning 1st Embodiment. It is a perspective view which shows the shielding board vicinity concerning 1st Embodiment. It is a downward perspective view which shows the holding holder concerning 1st Embodiment, the frame of an electrical equipment board | substrate, and an electrical equipment board | substrate. It is a perspective view which shows the cover concerning 1st Embodiment. It is a top view which shows the state which removed the upper surface panel of the outdoor unit of the air conditioner concerning 1st Embodiment. It is a perspective view which shows the electrical equipment board | substrate and shielding board vicinity concerning 1st Embodiment. It is a perspective view which shows the inner side of the outer cover concerning 1st Embodiment. It is a perspective view which shows the inner side of the side panel concerning 1st Embodiment. It is a perspective view which shows the outer side of the side panel concerning 1st Embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, the same reference numerals are assigned to the same constituent members. Their names and functions are also the same. Therefore, detailed description thereof will not be repeated.

[First Embodiment]
Referring to FIGS. 1 and 2, outdoor unit 100 includes a housing 109 and a fan, a compressor, a heat exchanger, and the like inside housing 109. The housing 109 includes a front panel 101, a top panel 102, a side panel 103, a back panel, a bottom panel, and the like.

Referring to FIGS. 3 and 4, in the present embodiment, partition plate 111 is erected on the side of fan 130 in casing 109. The partition plate 111 is a member for partitioning a space in which the fan 130 is disposed and a space 108 in which a compressor, an accumulator, an expansion valve, and the like are disposed.

An electrical board 120 is disposed on the upper part of the partition plate 111. In the present embodiment, electrical board 120 is held in a state where the surface of electrical board 120 is inclined from the vertical direction toward fan 130. The surface of the electrical board 120 is preferably tilted from about 10 ° to 60 ° from the vertical direction, and is preferably tilted from about 15 ° to 40 ° in view of workability and space efficiency.

More specifically, the outer periphery of the electrical board 120 is fitted into the frame body 121. A holding holder 112 for holding the electrical board 120 and the frame body 121 so as to be slidable in an oblique direction is fixed to the upper part of the partition plate 111 in a state of being inclined from the vertical direction toward the fan 130. In the present embodiment, the lower surface of the holding holder 112 is covered with the cover 113.

In the present embodiment, the upper end portion of the partition plate 111 reaches a little higher than the right side of the rotation shaft of the fan 130. The lower end of the holding holder 112 is fixed to the upper end of the partition plate 111, and the upper end reaches the upper right of the fan 130. Note that the upper end portion of the electrical board 120 is positioned on the upper right side of the fan 130 in a state where the electrical board 120 is inserted to the farthest, that is, the lowest position of the holding holder 112.

Various electrical components such as main wiring, a microcomputer, a connector, and the like are attached to the electrical substrate 120 on the opposite surface of the fan 130. That is, in the present embodiment, the surface of the electrical board 120 opposite to the fan 130 is the surface. A plurality of

heat dissipating plates

125, 125... As a result, heat generated on the surface of the electrical board 120 can be conducted to the

heat radiating plates

125, 125... And efficiently radiated by the wind of the fan 130.

Thus, in the present embodiment, the electrical board 120 is tilted from the vertical direction toward the fan 130 and is slidable obliquely upward. As described above, the degree of inclination of the electrical board 120 is preferably such that a serviceman can check the surface of the electrical board 120 from above the outdoor unit 100 and does not interfere with the fan 130. As a result, while effectively utilizing the space in the outdoor unit 100, a service person opens the top panel 102, repairs the electrical board 120, easily removes the wiring from the connector on the surface of the electrical board 120, The board 120 itself can be slid obliquely upward and removed from the outdoor unit 100.

In the present embodiment, as shown in FIGS. 3 to 5, the reactor 129 is disposed obliquely above and to the right of the electrical board 120. A shielding plate 128 is disposed between the electrical board 120 and the reactor 129. This makes it difficult for the heat generated in the reactor 129 to flow into the surface of the electrical substrate 120. In the present embodiment, shielding plate 128 includes an upper shielding plate 128A and a lower shielding plate 128B.

More specifically, the shielding plate 128 not only shields the space between the electrical board 120 and the space near the reactor 129 but also shields the space on the surface of the electrical board 120 from the back side and the front side of the outdoor unit 100. It is configured. 6, the frame body 121 or the holding holder 112 has

exhaust ports

112X, 112X,... For allowing air on the inside of the shielding plate 128, that is, on the surface side of the electrical board 120, to flow toward the fan 130. Is formed, and an exhaust port 112Y through which air on the back side of the shielding plate 128, that is, air on the reactor 129 side flows toward the fan 130 is formed. This makes it difficult for the heat generated in the reactor 129 to flow into the surface of the electrical substrate 120, and most of the heat can flow directly to the fan 130 side.

In the present embodiment, the holding holder 112 is covered with a cover 113. As shown in FIGS. 7 and 8, ventilation holes 113 X, 113 X... Are formed in the holding holder 112. And the air that holds the heat generated in the electrical board 120 discharged from the

exhaust ports

112X, 112X, and the air that holds the heat generated in the reactor 129 discharged from the exhaust port 112Y are supplied to the ventilation holes 113X, Flow from 113X to the fan 130 side.

More specifically, in the present embodiment, as shown in FIG. 8, the

exhaust ports

112X, 112X..., The exhaust ports 112Y, and the vent holes 113X, 113X. It is formed in front of or behind the fan 130. In other words, the

exhaust ports

112X, 112X,..., The exhaust ports 112Y, and the ventilation holes 113X, 113X,. Accordingly, even if water is blown sideways by the fan 130, the possibility of water adhering to the surface of the electrical board 120 can be reduced.

Further, in the present embodiment, as shown in FIG. 9, the shielding plate 128 is configured in a gate shape when viewed from below, and is configured such that air flows into the surface of the electrical board 120 from below. Yes. This makes it difficult for air containing heat generated in the reactor 129 to flow into the surface of the electrical board 120.

Next, the side cover 150 will be described. In the present embodiment, as shown in FIGS. 1 and 10, the side cover 150 is attached to the side panel 103. The side cover 150 is formed such that a lower part 150A swells compared to the upper part, and an opening 150B is formed on the side of the lower part 150A. Inside the lower part 150 A, the refrigerant pipe from the indoor unit is connected to the two-way valve or the three-way valve of the outdoor unit 100.

Also, signal lines and the like from the indoor unit are extended upward from the inside of the lower part 150A. The signal line extends upward inside the

partitions

151 and 151 and reaches from the upper part of the side panel 103 of the outdoor unit 100 to the inside of the outdoor unit 100. Note that the possibility of outside air entering the outdoor unit 100 along the signal line can be reduced by filling a sealant or the like around the signal line between the

partitions

151 and 151.

On the other hand, referring to FIG. 11 and FIG. 12, side panel 103 has an opening 103 A for passing the above-described refrigerant pipe formed in the lower portion thereof, and an opening 103 B for passing a signal line thereon. It is formed.

The terminal block 141 is attached to the inner surface of the side panel 103 inside the opening 103B. The terminal block 141 is formed in a box shape, and openings are formed on the opening 103 B side of the side panel 103 and the electrical board 120 side. The terminal block 141 may be fixed to a portion where the side panel 103 is bent to the front side and the back side of the outdoor unit 100. In addition, the back side of the outdoor unit 100 in the terminal block 141 may be attached to a member that holds the reactor 129 or the like.

Moreover, in this Embodiment, as shown in FIG. 10, it is comprised so that the external air which flowed in the outer part of the

partitions

151 and 151 out of the space inside the side cover 150 may flow from the opening part 150B. . Then, after entering the outdoor unit 100, the outside air flows outside the terminal block 141, passes through the fan 130, and is discharged from the outdoor unit 100.

In the present embodiment, the terminal board 142 is disposed inside the terminal block 141. The terminal block 141, the side panel 103, the holding member of the reactor 129, and the like are configured so that water hardly adheres to the signal line passing through the terminal board 142. More specifically, when the terminal block 141 has a box shape as shown in FIG. 11, even if water intrudes from the gap between the side panel 103 and the upper panel 102 due to water pressure due to heavy rain or the like, Since 141 covers the charging unit, that is, the terminal board 142, the possibility that moisture directly adheres to the terminal board 142 can be reduced.

In the present embodiment, the heat generated in the reactor 129 is not easily transmitted to the air passing through the terminal block 141. More specifically, the heat of the reactor 129 is absorbed by taking in the outside air in the flow of the side cover opening 150B → the outside of the side cover partition 151 → the outside of the terminal block 141 → the vicinity of the reactor 129 → the arrangement space of the fan 130. It will be pulled to the fan 130 side of the blower chamber on the downstream side, and heat is not easily transmitted to the terminal board 142 on the upstream side of the reactor 129.

[Second Embodiment]
Not only the above configuration, the partition plate 111 may further hold the electrical board 120 obliquely via another member. Alternatively, the electrical substrate 120 may be held obliquely by a member other than the partition plate 111.

[Third Embodiment]
Further, as described above, the shielding plate 128 includes the upper shielding plate 128A and the lower shielding plate 128B. And the lower part of the shielding board 128 is not restricted to the form opened completely as shown in FIG. In this case, the punching hole is preferably formed below the reactor 129. Accordingly, air that has not passed through the reactor 129 can be sent from the punching hole to the surface of the electrical board 120 while reducing water intrusion from below the shielding plate 128.

[Summary]
In said embodiment, the outdoor unit 100 of an air conditioner is provided. The outdoor unit 100 includes a housing 109, a fan 130 disposed in the housing 109, and an electrical board 120 disposed on the side of the fan 130. The electrical board 120 is held in a state where it is tilted in the direction of the fan 130 from a state in which it stands in the vertical direction.

Preferably, the outdoor unit 100 is erected on the side of the fan 130, and the partition member 111 for partitioning the space of the fan 130 and the space of the compressor, and the electrical board 120 in a direction inclined toward the fan 130. And holding member 112 (113) for holding. The holding member 112 (113) is configured such that the electrical board 120 is slidable obliquely upward in parallel with the surface of the electrical board 120.

Preferably, the holding member 112 is formed with

first exhaust ports

112X and 112X for discharging the heat on the front surface side of the electrical board 120 to the back surface.

Preferably, the first exhaust ports 112 X and 112 X are formed on the rear side or the front side with respect to the side of the fan 130.

Preferably, the outdoor unit 100 includes a reactor 129 disposed at a position separated from the electrical substrate 120 on the surface side of the electrical substrate 120, and a shielding plate 128 for partitioning the surface of the electrical substrate 120 and the reactor 129. Further prepare.

Preferably, the holding member 112 is formed with

second exhaust ports

112Y and 112Y for discharging heat in the vicinity of the reactor 129 to the fan 130 side.

Preferably, a plurality of holes are formed in the shielding plate 128 below the reactor 129.

The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims. Further, configurations obtained by combining the configurations of the different embodiments described in this specification with each other are also included in the scope of the present invention.

100: outdoor unit 101: front panel 102: upper panel 103: side panel 103A: lower opening 103B: upper opening 108: space 109: casing 111: partition plate 112: holding holder 112X: first exhaust port 112Y: Second exhaust port 113: Cover 113X: Ventilation hole 120: Electrical board 121: Frame body 125: Heat sink 128: Shield plate 128A: Upper shield plate 128B: Lower shield plate 129: Reactor 130: Fan 141: Terminal block 142: Terminal board 143: Partition 150: Side cover 150A: Lower part 150B: Opening 151: Partition

Claims

An air conditioner outdoor unit,
A housing,
A fan disposed in the housing;
An electrical board disposed on the side of the fan,
An outdoor unit of an air conditioner, in which the electrical circuit board is held in a state where the electrical circuit board is tilted in a direction from the vertical direction to the fan.
A partition member standing on the side of the fan, for partitioning the fan space and the compressor space;
A holding member that holds the electrical circuit board in a direction inclined toward the fan while being held by the partition member;
The outdoor unit of an air conditioner according to claim 1, wherein the holding member is configured such that the electrical board is slidable obliquely upward in parallel with the surface of the electrical board.
The outdoor unit for an air conditioner according to claim 2, wherein the holding member is formed with a first exhaust port for discharging heat on the front surface side of the electrical board to the back surface.
The outdoor unit for an air conditioner according to claim 3, wherein the first exhaust port is formed on a rear side or a front side of a side of the fan.
A reactor disposed on the surface side of the electrical board at a position spaced from the electrical board;
The outdoor unit for an air conditioner according to any one of claims 2 to 4, further comprising a shielding plate for partitioning a surface of the electrical board and the reactor.
The outdoor unit for an air conditioner according to claim 5, wherein the holding member is formed with a second exhaust port for discharging heat in the vicinity of the reactor to the fan side.
The outdoor unit for an air conditioner according to claim 6, wherein a plurality of holes are formed in the shielding plate below the reactor.