CN112219068A

CN112219068A - Outdoor machine

Info

Publication number: CN112219068A
Application number: CN201980037966.3A
Authority: CN
Inventors: 濑津道生; 神田聪
Original assignee: Sharp Corp
Current assignee: Sharp Corp
Priority date: 2018-06-15
Filing date: 2019-02-06
Publication date: 2021-01-12
Also published as: WO2019239630A1; JPWO2019239630A1

Abstract

Provided is an outdoor unit (100) of an air conditioner. The outdoor unit (100) includes a casing (109), a fan (130) disposed in the casing (109), and an electric board (120) disposed on one side of the fan (130). The electric substrate (120) is held in a state of being inclined in the direction of the fan (130) from a state of being erected in the vertical direction.

Description

Outdoor machine

Technical Field

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

Background

An outdoor unit of an air conditioner includes a heat exchanger, a blower, and the like housed in a casing, and supplies outside air to the heat exchanger to perform heat exchange with a refrigerant in a refrigeration cycle. Various technologies relating to an outdoor unit are disclosed.

For example, japanese patent application laid-open No. 2014-43974 (patent document 1) discloses an outdoor unit of a refrigeration apparatus. According to patent document 1, an internal space of an outdoor unit of a refrigeration apparatus is divided into a blower chamber in which an outdoor fan is disposed and a machine chamber in which electrical components are disposed, by a partition plate. The electrical component housing has a third side, an upper surface, and a projection. The third side faces the machine chamber side and covers one side of the electrical component. The upper surface is spaced from the electrical component by a gap and covers the upper side of the electrical component. The protruding portion is provided in the vicinity of the upper surface and protrudes further toward the blower chamber side than the third side surface. At least one downward opening communicating the machine room and the blower room is formed through the third side surface of the electrical component casing and the protruding portion.

Further, Japanese patent application laid-open No. 7-198171 (patent document 2) discloses an outdoor unit of a refrigeration apparatus. According to patent document 2, when a window hole is formed in an upper portion of a side plate made of metal (steel plate), a tongue piece is formed by making a notch in a substantially コ shape, and a lower portion of the tongue piece is bent inward of the side plate without being separated from the side plate. Thus, the window hole of the side plate can be opened, and a tongue piece for mounting the terminal tray and the ground terminal can be formed. Therefore, it is not necessary to separately use a metal mounting plate for mounting the conventional terminal block or the like.

Further, japanese patent application laid-open No. 2017-9263 (patent document 3) discloses an air conditioner. According to patent document 3, an air conditioner is provided with an outdoor unit having an electrical component box therein, an inlet port for introducing outside air into the electrical component box is provided in a side surface of a main body of the outdoor unit, an electrical cover is disposed in the side surface of the main body so as to cover the inlet port, a cooling suction port for sucking air introduced into the inlet port is disposed in an upper portion of the electrical cover, an opening portion for passing a refrigerant is disposed in a lower portion of the electrical cover, an inner cover for colliding outside air sucked from the cooling suction port is disposed between the cooling suction port and the inlet port, an interior of the electrical cover is disposed so as to be in contact with an inner surface of the electrical cover with a partition plate partitioning an upper portion having the cooling suction port and a lower portion having the opening portion, and a storage region for storing water is formed in a region surrounded by an upper surface of the partition plate, the electrical cover, and, the partition plate is provided with a drain hole for draining water accumulated in the storage area.

Further, japanese patent application laid-open publication No. 2011-21776 (patent document 4) discloses an outdoor unit. According to patent document 4, the outdoor unit includes: the terminal device includes a case having a side plate and a top plate, a terminal block housed in the case, a wiring opening opened at a position near the terminal block, and a closing valve cover covering the wiring opening. An outer wall portion disposed outside an edge portion of the top plate, an inner wall portion disposed inside the edge portion of the top plate, and a recessed portion provided between the outer wall portion and the inner wall portion are formed at an upper end portion of the closing valve cover. The edge of the top plate is inserted into a recess formed in the upper end of the closing bonnet at a position above the opening for wiring, and the upper portion of the opening for wiring of the side plate is disposed inside the inner wall.

Documents of the prior art

Patent document

Patent document 1 Japanese patent laid-open No. 2014-43974

Patent document 2 Japanese unexamined patent publication No. Hei 7-198171

Patent document 3 Japanese patent laid-open publication No. 2017-9263

Patent document 4 Japanese patent application laid-open No. 2011-21776

Disclosure of Invention

Problems to be solved by the invention

In one aspect of the present invention, it is an object to provide a technique of efficiently arranging electric elements.

Means for solving the problems

In one aspect of the present invention, an outdoor unit of an air conditioner is provided. The outdoor unit includes a casing, a fan disposed in the casing, and an electric substrate disposed on one side of the fan. The electric substrate is held in a state of being inclined in the direction of the fan from a vertically standing state.

Effects of the invention

In one aspect of the present invention, techniques are provided for efficiently configuring electrical components.

Drawings

Fig. 1 is a perspective view showing an external appearance of an outdoor unit of an air conditioner according to a first embodiment.

Fig. 2 is a front view showing an external appearance of an outdoor unit of an air conditioner according to a first embodiment.

Fig. 3 is a front view showing a state where a front panel and a top panel of an outdoor unit of an air conditioner according to embodiment 1 are removed.

Fig. 4 is a perspective view showing a state where the front panel, the top panel, and the shielding plate of the outdoor unit of the air conditioner according to the first embodiment are removed.

Fig. 5 is a perspective view showing the vicinity of the shield plate according to the first embodiment.

Fig. 6 is a bottom perspective view showing the holding member, the housing of the electric substrate, and the electric substrate according to the first embodiment.

Fig. 7 is a perspective view showing the cover according to the first embodiment.

Fig. 8 is a plan view showing a state where an upper surface panel of an outdoor unit of an air conditioner according to the first embodiment is removed.

Fig. 9 is a perspective view showing the vicinity of the electric substrate and the shield plate according to the first embodiment.

Fig. 10 is a perspective view showing the inside of the outer cover according to the first embodiment.

Fig. 11 is a perspective view showing the inside of the side panel according to the first embodiment.

Fig. 12 is a perspective view showing the outer side of the side panel according to the first embodiment.

Detailed Description

Embodiments of the present invention will be described below with reference to the drawings. In the following description, the same components are given the same reference numerals. Their names and functions are also the same. Therefore, detailed description thereof will not be repeated.

[ first embodiment ]

Referring to fig. 1 and 2, the outdoor unit 100 includes a casing 109, and a fan, a compressor, a heat exchanger, and the like inside the casing 109. The housing 109 is composed of a front panel 101, an upper panel 102, a side panel 103, a rear panel, a bottom panel, and the like.

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

An electric board 120 is disposed above the partition plate 111. In the present embodiment, the electric board 120 holds the surface of the electric board 120 in a state inclined from the vertical direction toward the fan 130. The surface of the electric substrate 120 is preferably inclined at about 10 ° to 60 ° from the vertical direction, and is preferably inclined at about 15 ° to 40 ° in view of workability and space efficiency.

More specifically, the outer periphery of the electric substrate 120 is mounted on the frame 121. The holding member 112 for slidably holding the electric substrate 120 and the housing 121 in the oblique direction is fixed to the upper portion of the partition plate 111 in a state of being inclined in the direction of the fan 130 from the vertical direction. In the fan of the present embodiment, the lower surface of the holding member 112 is covered with the cover 113.

In the present embodiment, the upper end of the partition plate 111 is slightly above the right side of the rotation axis of the fan 130. The lower end of the holding member 112 is fixed to the upper end of the partition plate 111, and the upper end reaches the upper right of the fan 130. In a state where the electric board 120 is inserted into the innermost, i.e., lowermost, surface of the holding member 112, the upper end portion of the electric board 120 is positioned at the upper right side of the fan 130.

On the electric substrate 120, various electric components such as main wiring, a microprocessor, a connector, and the like are mounted on the opposite surface of the fan 130. That is, in the present embodiment, the surface of the electric board 120 opposite to the fan 130 is a front surface. A plurality of

heat sinks

125 and 125 … … are erected on the back surface of the electric board 120. This allows heat generated on the surface of the electric substrate 120 to be conducted to the

heat dissipation plates

125 and 125 … …, and allows the wind from the fan 130 to be efficiently dissipated.

In this way, in the present embodiment, the electric board 120 is inclined from the vertical direction toward the fan 130, and is configured to be slidable obliquely upward. As described above, the degree of inclination of the electric board 120 is preferably such a degree that the service person can check the surface of the electric board 120 from above the outdoor unit 100 and does not interfere with the fan 130. Thus, while the space in the outdoor unit 100 is effectively used, the service person or the like can open the top panel 102, repair the electric board 120, easily remove the wiring from the connector on the surface of the electric board 120, or slide the electric board 120 itself obliquely upward and remove the electric board from the outdoor unit 100.

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

More specifically, the shielding plate 128 is configured to shield not only the space between the electric substrate 120 and the space near the reactor 129 but also the back surface side and the front surface side in the outdoor unit 100 of the space on the front surface of the electric substrate 120. As shown in fig. 6, the frame 121 or the holding member 112 is provided with

first exhaust ports

112X and 112X … … for allowing air inside the shield plate 128, that is, on the front surface side of the electric substrate 120 to flow toward the fan 130, and a second exhaust port 112Y for allowing air on the back surface side of the shield plate 128, that is, air on the reactor 129 side to flow toward the fan 130. This makes it difficult for the heat generated by the reactor 129 to flow to the surface of the electric substrate 120, and most of the heat can flow directly to the fan 130.

In the present embodiment, the holding member 112 is covered with the lid 113. As shown in fig. 7 and 8, the holding member 112 is provided with

vent holes

113X and 113X … …. The air holding the heat generated by the electric substrate 120 discharged from the

first exhaust ports

112X and 112X … … and the air holding the heat generated by the reactor 129 discharged from the second exhaust port 112Y flow from the

ventilation holes

113X and 113X … … to the fan 130 side.

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

first discharge ports

112X and 112X … …, the second discharge port 112Y, and the vent holes 113X and 113X … … are formed further forward or further rearward of the fan 130 in the front-rear direction of the outdoor unit 100. In other words, the

first discharge ports

112X and 112X … …, the second discharge port 112Y, the vent holes 113X and 113X … …, and the fan 130 are located at non-overlapping positions in a side view of the outdoor unit 100. This reduces the possibility of water adhering to the surface of the electric board 120 even if water is splashed sideways by the fan 130.

In the present embodiment, as shown in fig. 9, the shielding plate 128 is formed in a gate shape when viewed from below, and air flows into the surface of the electric substrate 120 from below. This makes it difficult for air containing heat generated by the reactor 129 to flow into the surface of the electric substrate 120.

Next, the side cover 150 is explained. In the present embodiment, as shown in fig. 1 and 10, the side cover 150 is mounted on the side panel 103. In the side cover 150, the lower portion 150A is formed to expand compared with the upper portion, and an opening 150B is formed on one side of the lower portion 150A. Inside the lower portion 150A, refrigerant pipes from the indoor units are connected to the two-way valve or the three-way valve of the outdoor unit 100.

Further, signal lines and the like from the indoor unit extend upward from the inside of the lower portion 150A. The signal lines extend upward from the inside of the

partitions

151 and 151, and reach the inside of the outdoor unit 100 from the upper portion of the side panel 103 of the outdoor unit 100. Further, by providing a sealing material or the like around the signal lines between the

partition plates

151 and 151, the possibility of outside air entering the outdoor unit 100 along the signal lines can be reduced.

On the other hand, referring to fig. 11 and 12, the side panel 103 has an opening 103A formed in a lower portion thereof for passing the refrigerant pipe therethrough, and an opening 103B formed in the upper portion thereof for passing the signal line therethrough.

Inside the opening 103B, the terminal block 141 is attached to the inner surface of the side panel 103. The terminal block 141 is formed in a box shape, and forms an opening on the side of the opening 103B of the side panel 103 and the side of the electric board 120. The terminal block 141 may be formed by fixing the side panel 103 to a bent portion of the front surface side and the rear surface side of the outdoor unit 100. The terminal block 141 may be attached to a member holding the reactor 129 on the back side of the outdoor unit 100.

In the present embodiment, as shown in fig. 10, the outside air flowing from the opening 150B flows outside the

partitions

151 and 151 in the space inside the side cover 150. Then, the outside air flows outside the terminal base 141 after entering the outdoor unit 100, passes through the fan 130, and is discharged from the outdoor unit 100.

In the present embodiment, the terminal block 142 is disposed inside the terminal block 141. The terminal block 141, the side panel 103, and the holding member of the reactor 129 are configured to prevent water from adhering to the signal line passing through the terminal block 142. More specifically, in the case where the terminal block 141 has a box shape as shown in fig. 11, even if water enters through a gap between the side panel 103 and the upper panel 102 due to water pressure caused by heavy rain or the like, the terminal block 141 covers the terminal pad 142 serving as the charging unit, so that the possibility of water directly adhering to the terminal pad 142 can be reduced.

In the present embodiment, the heat generated by the reactor 129 is not easily transmitted to the air passing through the terminal block 141. More specifically, the outside air is sucked in by the flow of the opening portion 150B of the side cover → 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, so that the heat of the reactor 129 is sucked to the fan 130 side which is the blower chamber on the downstream side, and the heat is configured to be hard to be transmitted to the terminal tray 142 on the upstream side of the reactor 129.

[ second embodiment ]

The partition plate 111 may hold the electric board 120 obliquely via another member, without being limited to the above configuration. Alternatively, the electric board 120 may be held in an inclined state by a member other than the partition plate 111.

[ third embodiment ]

In addition, as described above, the shield plate 128 includes the upper shield plate 128A and the lower shield plate 128B. The lower portion of the shielding plate 128 is not limited to the completely open form shown in fig. 9, and a heat radiation through hole may be formed in the bottom surface of the shielding plate 128. In this case, it is preferable to form the perforations further below the reactor 129. This reduces the intrusion of water from below the shield plate 128, and allows air that has not passed through the reactor 129 to be delivered to the surface of the electrical substrate 120 through the through-holes.

[ conclusion ]

In the above embodiment, the outdoor unit 100 of the air conditioner is provided. The outdoor unit 100 includes a casing 109, a fan 130 disposed in the casing 109, and an electric board 120 disposed on one side of the fan 130. The electric board 120 is held in a state of being inclined in the direction of the fan 130 from a vertically standing state.

Preferably, the outdoor unit 100 further includes a partition plate 111 provided upright on one side of the fan 130 to partition a space of the fan 130 from a space of the compressor, and a holding member 112 (cover 113) for holding the electric board 120 in a direction inclined toward the direction of the fan 130. The holding member 112 (cover 113) is configured such that the electric board 120 is slidable obliquely upward in parallel with the surface of the electric board 120.

Preferably,

first exhaust ports

112X, 112X for discharging heat of the surface side of the electric substrate 120 to the back side are formed on the holding member 112.

Preferably, the

first exhaust ports

112X, 112X are formed at a position more to the rear or front than one side of the fan 130.

Preferably, the outdoor unit 100 further includes a reactor 129 disposed on the front surface side of the electric substrate 120 and at a position distant from the electric substrate 120, and a shield plate 128 for separating the front surface of the electric substrate 120 and the reactor 129.

Preferably,

second exhaust ports

112Y, 112Y are formed in the holding member 112, and the

second exhaust ports

112Y, 112Y are used to exhaust heat near the reactor 129 to the fan 130 side.

Preferably, the shield plate 128 is formed with a plurality of holes further downward than the reactor 129.

The embodiments disclosed herein are to be considered in all respects as illustrative and not restrictive. The scope of the present invention is defined by the scope of the claims, rather than the description above, and is intended to include all modifications within the scope and meaning equivalent to the claims. In addition, a configuration obtained by combining the configurations of the different embodiments described in the present specification is also included in the scope of the present invention.

Description of the reference numerals

100 outdoor machine

101 front panel

102 upper surface panel

103 side panel

103A opening part

103B opening part

108 space

109 casing

111 partition plate

112 holding member

112X first exhaust

112Y second exhaust port

113 cover body

113X Vent hole

120 electric substrate

121 frame body

125 heat releasing plate

128 shield plate

128A Upper Shield plate

128B lower shield plate

129 reactor

130 fan

141 terminal base

142 terminal tray

143 spacer

150 side cover

150A lower part

150B opening part

151 baffle plate

Claims

1. An outdoor unit of an air conditioner, comprising:

a housing;

a fan disposed within the housing;

an electric substrate disposed on one side of the fan;

the electric substrate is held in a state of being inclined in a direction of the fan from a vertically standing state.

2. The outdoor unit of an air conditioner according to claim 1, further comprising:

a partition member provided upright at one side of the fan and separating a space of the fan and a space of the compressor;

a holding member that holds the electrical substrate in a direction inclined in the direction of the fan while holding the electrical substrate on the partition member;

the holding member is configured to be slidable obliquely upward in parallel with a surface of the electric board.

3. The outdoor unit of claim 2, wherein the holding member has a first discharge port formed therein for discharging heat from a front surface side of the electric substrate to a rear surface side.

4. The outdoor unit of claim 3, wherein the first discharge opening is formed at a position closer to a rear side or a front side than a side of the fan.

5. The outdoor unit of an air conditioner according to any one of claims 2 to 4, further comprising:

a reactor disposed on a surface side of the electric substrate at a position distant from the electric substrate; and

a shield for spacing a surface of the electrical substrate from the reactor.

6. The outdoor unit of an air conditioner according to claim 5, wherein a second discharge port for discharging heat near the reactor to the fan side is formed in the holding member.

7. The outdoor unit of claim 6, wherein the shielding plate has a plurality of holes formed at a lower portion of the reactor.