WO2023136123A1

WO2023136123A1 - Outdoor unit of air conditioner, and air conditioner

Info

Publication number: WO2023136123A1
Application number: PCT/JP2022/048021
Authority: WO
Inventors: 忠聖関
Original assignee: 三菱電機株式会社
Priority date: 2022-01-11
Filing date: 2022-12-26
Publication date: 2023-07-20
Also published as: JPWO2023136123A1

Abstract

This outdoor unit (1) for an air conditioner comprises: a housing (2) in which a discharge port (8) and intake ports (4, 6) are formed; a fan (13) which is located within the housing (2) and generates an air flow in an air flow path that connects the intake ports (4, 6) and the discharge port (8); a heat exchanger (20) which is located in the air flow path at least in part and by which heat is exchanged between a heat medium and the air flow generated in the air flow path by the fan 13; a heat transfer member which is thermally connected to a heat generation element accommodated in the housing 2; a partition plate (9) which divides the inside of the housing (2) into a fan chamber (11), in which the fan (13) and the heat exchanger (20) are located, and a mechanism chamber (10), in which the heat generation element is accommodated; and a heat dissipation part which is provided on the heat transfer member so as to be thermally connected thereto, is located upstream of the heat exchanger (20) in the air flow path connecting the intake ports (4, 6) and the discharge port (8), and is located in a corner portion of the housing (2) inside the fan chamber (11).

Description

Air conditioner outdoor unit and air conditioner

The present disclosure relates to outdoor units of air conditioners and air conditioners.

In recent years, the outdoor units of air conditioners have tended to become larger. Therefore, the heat loss of the power module of the outdoor unit also tends to increase. Therefore, the heat sink for cooling the power module also tends to increase in size.

However, as the distance between the power module and the heat dissipation part increases due to the size of the heat sink, the temperature difference between the heat dissipation destination air and the heat dissipation part decreases due to the thermal resistance of the heat sink. Therefore, it is becoming difficult to cope with the increase in heat loss by increasing the size of the heat sink. On the other hand, in Patent Document 1, the heat generated in the power module is transferred to the heat dissipation fins via a heat pipe having a higher thermal conductivity than the heat sink, and the temperature difference between the air to which heat is dissipated and the heat sink surface. An outdoor unit is disclosed that cools a power module by keeping .

Japanese Patent Application Laid-Open No. 2019-32142

In this outdoor unit, the heat radiation fins are installed on the leeward side of the outdoor air flow path with respect to the heat exchanger. For this reason, air that has been warmed by heat exchange with the heat exchanger and has a higher temperature than the outside air flows into the radiation fins. Therefore, there is a possibility that a sufficient effect of heat dissipation from the power module cannot be obtained. And this problem occurs not only when the heat generator is a power module, but also when other heat generating parts are used.

The present disclosure has been made in view of the above circumstances, and aims to provide an outdoor unit of an air conditioner and an air conditioner that can efficiently dissipate the heat of a heating element.

In order to achieve the above object, the outdoor unit of an air conditioner according to the present disclosure includes a housing in which an exhaust port and an air intake are formed, and an air path that is disposed in the housing and connects the air intake and the exhaust port. a blower that generates wind; a heat exchanger that is at least partly arranged in an air passage and exchanges heat between the air flowing in the air passage by the blower and a heat medium; A partition plate that divides the inside of the heat transfer member and the housing into a blower room in which the blower and the heat exchanger are arranged and a machine room in which the heating element is stored, and thermally connected to the heat transfer member and a heat radiating part provided on the air path connecting the air inlet and the air outlet, arranged on the windward side of the heat exchanger, and arranged at the corner of the housing in the fan chamber.

According to the present disclosure, the heat of the heating element is radiated from the heat radiating section via the heat transfer member. Since this heat radiating part is arranged on the windward side of the heat exchanger in the air passage that connects the intake port and the exhaust port, less heat flows into the heat radiating part than when the heat radiating part is installed on the leeward side of the heat exchanger. The temperature of the air used can be lowered. Thereby, the heat of the heating element can be efficiently radiated.

Front view of the outdoor unit according to Embodiment 1 Front view with the front panel of the outdoor unit shown in FIG. 1A removed The top view which removed the top panel of the outdoor unit shown to FIG. 1A The left side view of the outdoor unit shown in FIG. 1A with the left side panel removed. FIG. 1B is a perspective view of the cooling unit shown in FIG. 1B. Side view of the outdoor unit according to Embodiment 2 The perspective view of the cooling unit of the outdoor unit according to Embodiment 3 FIG. 11 is a rear view of the outdoor unit according to Embodiment 3 with the rear panel removed; FIG. 5B is a top view of the outdoor unit shown in FIG. 5A with the front panel removed; Left side view of the outdoor unit shown in FIG. 5A with the left side panel removed The figure which shows the structure of the outdoor unit which concerns on Embodiment 4 The perspective view of the cooling unit of the outdoor unit according to Embodiment 5 The top view of the outdoor unit according to Embodiment 6 with the top panel removed The perspective view of the cooling unit of the outdoor unit according to Embodiment 6 1 is a diagram showing the configuration of an air conditioner according to an embodiment;

An outdoor unit of an air conditioner and an air conditioner according to an embodiment of the present disclosure will be described below with reference to the drawings. In the drawings, the same reference numerals are given to the same or equivalent parts. In order to facilitate understanding, an XYZ orthogonal coordinate system is set and referred to as appropriate. As shown in FIG. 1A, when the front panel having the exhaust port of the outdoor unit 1 is the front, the horizontal direction is the X-axis direction, the height direction is the Y-axis direction, and the direction perpendicular to the X-axis and the Y-axis is the Z-axis. direction.

(Embodiment 1)
As shown in FIG. 9 , an air conditioner 100 according to this embodiment includes an outdoor unit 1 and an indoor unit 200 . The outdoor unit 1 is connected to an indoor unit 200 installed inside a building 400 via a heat medium pipe 300 .

As shown in FIGS. 1A to 1D, the outdoor unit 1 includes a rectangular parallelepiped housing 2, a compressor 12 stored in the lower part of the machine room 10, a fan 13 stored in the fan room 11, and a machine room. 10 , a heat exchanger 20 arranged on the rear surface of the fan chamber 11 , and a cooling unit 30 for cooling the power module 15 .

The housing 2 has a rectangular box shape as a whole, and includes a front panel 7 forming the front surface of the outdoor unit 1, a rear panel 3 forming the rear surface of the outdoor unit 1, a right side surface of the outdoor unit 1 and A side panel 5 forming a left side surface and a top panel 27 forming the top surface of the outdoor unit 1 are provided. In addition, the housing 2 has a partition plate 9 that divides the inside of the housing 2 into a machine room 10 in which the compressor 12 is arranged and a blower room 11 in which the heat exchanger 20 and the blower 13 are arranged. Prepare.

The front panel 7 is provided with an exhaust port 8 that opens circularly. The back panel 3 is provided with an intake port 4 that is an opening for taking air into the fan chamber 11, and the side panel 5 on the blower chamber 11 side is provided with an intake port that is an opening for taking air into the fan chamber 11. 6 is provided. Air inlet 4 and air inlet 6 are each formed from one rectangular opening. The rear panel 3 is an example of a facing panel, the side panel 5 is an example of an orthogonal panel, and the front panel 7 is an example of an exhaust panel.

The compressor 12 is arranged in the machine room 10 of the housing 2, and by compressing the sucked refrigerant, discharges the high-temperature and high-pressure refrigerant to the outside.

The blower 13 includes a drive motor and a fan, and is arranged in the blower chamber 11 of the housing 2 . The blower 13 sucks outdoor air from the air inlets 4 and 6 of the housing 2 by rotating the drive motor, and blows the sucked air to the outside from the air outlet 8 .

The power module 15 is mounted on the control board 14 and fixed to the partition plate 9 above the machine room 10 . For example, the power module 15 is adhered to the partition plate 9 using a heat dissipation adhesive sheet having high thermal conductivity. The power module 15 is formed from a semiconductor device such as an SiC element, an IGBT (Insulated Gate Bipolar Transistor) element, a power MOS element, a bipolar transistor, or the like, and drives the compressor 12 and the blower 13 . The power module 15 generates heat due to heat loss as it operates. The power module 15 and the control board 14 are desirably installed at a high position, for example, above the compressor 12, in order to avoid short circuits due to water intrusion. Also, it is desirable to store them in a control board storage box.

The heat exchanger 20 is a finned-tube type heat exchanger, and is a device that includes heat transfer tubes, which are circular copper tubes, and aluminum fins that are thermally bonded to the heat transfer tubes by pressure bonding. The heat exchanger 20 exchanges heat between the air sucked from the air inlet 4 and the air inlet 6 and the refrigerant. The heat exchanger 20 acts as an evaporator when the air conditioner is in heating operation, and acts as a condenser when it is in cooling operation.

As shown in FIG. 1C, the heat exchanger 20 is arranged in an L shape in plan view along the rear panel 3 of the outdoor unit 1 and the side panel 5 having the intake port 6 . The heat exchanger 20 includes a rear portion 21 arranged to face the air intake 4 of the rear panel 3, a side portion 22 arranged to face the air intake 6 of the side panel 5, and a rear portion 21. and a bent portion 23 connecting the side portion 22 . As shown in FIGS. 1B to 1D, at the corner formed by the side panel 5 and the front panel 7, a housing space 24 is formed for housing the radiating fins 33 of the cooling unit 30, which will be described later. Therefore, the side surface portion 22 of the heat exchanger 20 has a shape having a step or a recess at the end. The rear surface portion 21 is an example of the facing portion, and the side surface portion 22 is an example of the orthogonal portion.

The heat transfer tubes of the heat exchanger 20 are provided with a plurality of straight tube members and U-shaped U-bend tubes 26 that connect adjacent straight tube members, and are formed in a meandering shape. In the heat exchanger 20, meandering heat transfer tubes are horizontally arranged in two rows. Since the curvature radii of the bent portions 23 of the heat transfer tubes arranged near the rear panel 3 or the side panel 5 and the heat transfer tubes arranged inside the heat transfer tubes are different, the side portions 22 of the heat exchanger 20 The end of the has a shape in which the outside protrudes from the inside.

As shown in FIG. 1D, the heat transfer tube of the side portion 22 of the heat exchanger 20 has a U-shaped U-bend tube 26 at its end. The U-bend tube 26 passes from the heat transfer tube on the back side portion 21 side of the heat exchanger 20 through the heat transfer tube of the bent portion 23 and reaches the end portion of the heat transfer tube on the side portion 22 without stagnation. heat transfer tubes.

The cooling unit 30 cools the power module 15 . As shown in FIG. 1B, the cooling unit 30 includes a heat receiving block 31 to which heat generated by the power module 15 is transferred, a heat pipe 32 to transfer the heat transferred to the heat receiving block 31 to the heat dissipation fins 33, and a heat pipe 32 and a radiating fin 33 for radiating heat transferred from. The heat radiation fins 33 are an example of a heat radiation portion, and the heat pipes 32 are an example of a heat transfer member.

The heat receiving block 31 is a rectangular member made of aluminum, and one main surface of the heat receiving block 31 is connected to the power module 15 via thermal grease. The partition plate 9 has an opening through which the heat receiving block 31 passes in the X-axis direction. The partition plate 9 and the heat receiving block 31 are joined by welding. As shown in FIG. 2, a surface of the heat receiving block 31 different from the surface connected to the power module 15 is provided with a circular hole, into which one end 32a of the heat pipe 32 is inserted. .

The heat pipe 32 has a cylindrical member made of copper. One end portion 32a of the heat pipe 32 is inserted into a hole portion of the heat receiving block 31, and the other end portion 32b of the heat pipe 32 is press-fitted with a radiation fin 33. As shown in FIG. The heat pipe 32 has a cylindrical member filled with a coolant. Heat generated by the power module 15 is transmitted to one end portion 32 a of the heat pipe 32 via the heat receiving block 31 . The one end portion 32a transfers the transferred heat to the coolant to evaporate the coolant. The vaporized coolant moves inside the heat pipe 32 to the other end 32b where the temperature is low. The vaporized coolant radiates heat from the heat radiating fins 33 provided on the other end 32b, condenses, and becomes a liquid. A groove is formed in the inner wall of the heat pipe 32, and the condensed liquid coolant is circulated to the one end 32a by capillary force. In this manner, the heat pipe 32 efficiently transfers heat from the one end 32a to the other end 32b by circulating the coolant in the heat pipe 32 while changing the phase. Also, the shape of the heat pipe from one end 32a to the other end 32b does not need to be the shortest path, and any path may be used. Note that the heat pipe 32 is an example of a heat transfer member.

The radiation fins 33 include a plurality of plate-like fins made of aluminum, as shown in FIG. Each fin is arranged side by side in the axial direction of the heat pipe 32 . The radiation fins 33 are in close contact with the other end 32 b of the heat pipe 32 and release heat transferred from the coolant inside the heat pipe 32 . As shown in FIG. 1C, the heat radiating fins 33 are located on the sides of the side panel 5, the front panel 7, and the heat exchanger 20 at the corners of the housing 2 inside the fan chamber 11 formed by the side panel 5 and the front panel 7. It is arranged in a receiving space 24 between the ends of the portion 22 . Therefore, the radiation fins 33 are installed on the windward side of the heat exchanger 20 on the air path that connects the intake port 4 or the intake port 6 and the exhaust port 8 . The corner of the housing 2 is, for example, an area formed by any one of the rear panel 3, the side panel 5, the front panel 7, and the top panel 27, or an area along any of the panels. , a region away from the corner of the housing 2 .

Next, the mechanism for cooling the power module 15 in the outdoor unit 1 having the above configuration will be described with reference to FIG. 1C.

The power module 15 drives the blower 13 to rotate the blower fan of the blower 13 . As the blower 13 rotates, it draws outdoor air into the blower chamber 11 of the housing 2 in the direction of the arrow shown in the figure from the air intake 4 provided on the rear panel 3 and the air intake 6 provided on the side panel 5. . The blower 13 blows out the outdoor air taken into the blower room 11 outside the room from the exhaust port 8 provided in the front panel 7 in the direction of the arrow shown in the figure. At this time, the air entering the blower chamber 11 through the air inlet 4 provided in the back panel 3 mainly exchanges heat with the heat exchanger 20 . Also, the air entering the intake port 6 provided in the side panel 5 exchanges heat mainly between the radiation fins 33 and the heat exchanger 20 .

By driving the compressor 12 and the blower 13, the power module 15 generates heat. The generated heat is transferred to the heat receiving block 31 of the cooling unit 30 in close contact with the power module 15 via the thermal grease. The transferred heat is conducted in the heat receiving block 31 and transferred to the one end portion 32 a of the heat pipe 32 .

When heat is transferred to the one end 32a of the heat pipe 32, the refrigerant in the one end 32a of the heat pipe 32 receives heat and evaporates. As the vaporized refrigerant moves to the other end 32b having a lower temperature inside the heat pipe 32, heat is transferred to the other end 32b. The conveyed heat is conducted from the other end 32b of the heat pipe 32 to the radiating fins 33 that are in close contact with the other end 32b of the heat pipe 32 .

The heat transmitted to the radiation fins 33 enters the intake port 6 provided on the side panel 5 and exchanges heat with the air flowing around the radiation fins 33 . Since the temperature of the air flowing around the radiation fins 33 is lower than the temperature of the radiation fins 33, heat is radiated from the radiation fins 33 to the air. Thus, the heat generated in the power module 15 is released to the air flowing around the radiation fins 33, and the power module 15 is cooled.

The air conditioner is normally operated for cooling in the summer, and the heat exchanger 20 of the outdoor unit 1 of the air conditioner works as a condenser. Therefore, the surface temperature of the heat exchanger 20 is higher than the outside air temperature, and the temperature of the air flowing downstream of the heat exchanger 20 is higher than the outside air temperature. Since the heat radiation fins 33 of the cooling unit 30 are provided in the accommodation space 24 between the side panel 5, the front panel 7, and the side portion 22 of the heat exchanger 20, the air inlet 4 or the air inlet 6 and the air outlet 8 are provided. It is installed on the windward side of the heat exchanger 20 on the air passage that connects the With this configuration, the temperature of the air flowing between the heat dissipating fins 33 can be made lower than when the heat dissipating fins 33 are installed on the leeward side of the heat exchanger 20 . Therefore, the heat of the power module 15 can be efficiently radiated, the temperature rise of the power module 15 can be suppressed, and the reliability can be improved.

In the above description, the power module 15 is used as an example of the heat generating element to be cooled, but it is not limited to this. For example, an electrical component such as a microcomputer or a control integrated circuit (IC) may be used as a heating element to be cooled. The object to be cooled is not limited to electrical components, and may be anything as long as it generates heat.

Also, the heat receiving block 31 and the power module 15 are connected via thermal grease, but the power module 15 is housed in an electrical component box made of aluminum, copper, or the like having high thermal and electrical conductivity. The heat conducted from the power module 15 to the electrical component box may be conducted to the heat receiving block 31 . The electrical component box and the heat receiving block 31 are thermally connected via thermally conductive grease, a thermally conductive sheet, or the like.

(Embodiment 2)
The present disclosure is not limited to Embodiment 1, and the configuration can be appropriately changed as long as the heat generated by the power module 15 can be radiated upstream of the heat exchange air passage from the heat exchanger 20. . For example, in Embodiment 1, as shown in FIG. 2, an example in which the fins forming the radiation fins 33 have the same size has been described, but the present invention is not limited to this. The size of each fin of the radiating fins 33 may be appropriately changed in consideration of the distance from other members such as the housing 2 and the heat exchanger 20 . For example, the fins forming the radiation fins 33 may have different lengths in the Z-axis direction.

For example, as shown in FIG. 3, each fin forming the heat radiation fins 33a of the outdoor unit 1a according to Embodiment 2 is aligned with the bending shape of the U bend pipe 26 of the side surface portion 22 of the heat exchanger 20, and They are formed into shapes with different lengths in the directions.

Since the radiation fins 33a have the above structure, the radiation fins 33 shown in FIG. , the total surface area of the radiation fins 33a is increased. This makes it possible to increase the heat dissipation performance. Thereby, the heat of the power module can be efficiently radiated, the temperature rise of the power module 15 can be suppressed, and the reliability can be improved.
Both the heat radiation fins 33 and the heat radiation fins 33a may be arranged.

(Embodiment 3)
According to the present disclosure, if the heat generated by the power module 15 can be radiated upstream of the heat exchange air passage from the heat exchanger 20, the shape and arrangement position thereof can be changed as appropriate. For example, in Embodiment 1, as shown in FIG. 1C, the heat radiation fins 33 of the cooling unit 30 are provided in the housing space 24 between the side panel 5, the front panel 7, and the side portion 22 of the heat exchanger 20. However, it is not limited to this. The heat radiation fins 33 may have any shape and arrangement position as long as they are arranged on the windward side of the heat exchanger 20 on the air path connecting the air intake port 4 or the air intake port 6 and the air discharge port 8. .

For example, as shown in FIG. 4, the heat radiation fins 33b of the cooling unit 30a according to the third embodiment are formed of a plurality of flat triangular fins. 5A is a rear view of the outdoor unit 1b with the rear panel 3 removed, FIG. 5B is a top view of the outdoor unit 1b with the top panel 27 shown in FIG. 1A removed, and FIG. 5C is shown in FIG. 1A. Fig. 3 is a left side view of the outdoor unit 1b with the left side panel 5 removed; As shown in these drawings, the heat radiation fins 33b of the outdoor unit 1b are located at the corners of the housing 2 in the fan chamber 11 formed by the side panel 5 and the rear panel 3. 5 and the bent portion 23 of the heat exchanger 20 . Therefore, the radiation fins 33 b are installed on the windward side of the heat exchanger 20 on the air path connecting the air intake port 4 or the air intake port 6 and the air discharge port 8 .

Since the radiation fins 33b are arranged as described above, the temperature of the air flowing into the radiation fins 33b can be lowered compared to the case where the radiation fins are installed on the leeward side of the heat exchanger 20. Therefore, the heat of the power module can be efficiently radiated, the temperature rise of the power module 15 can be suppressed, and the reliability can be improved. Moreover, since it is arranged in the space formed by the rear panel 3, the side panel 5, and the bent portion 23 of the heat exchanger 20, the space can be effectively utilized. In this case, the configuration and shape of the side surface portion 22 are arbitrary, and the end portion need not be stepped.

(Embodiment 4)
In Embodiment 3, as shown in FIG. 4, the radiation fins 33b are formed of a plurality of flat triangular fins, but the present invention is not limited to this. In order to enhance the heat dissipation effect of the heat dissipation fins 33b, the shape of each fin may be appropriately changed in consideration of the distance from other members such as the housing 2 and the heat exchanger 20. FIG. For example, as shown in FIG. 6, the radiation fins 33c of the outdoor unit 1c may have a curved shape in which the side closest to the bent portion 23 of the heat exchanger 20 is along the bent portion 23 in plan view.

Since the heat radiation fins 33c have the above configuration, the total surface area of the heat radiation fins 33c is larger than that of the heat radiation fins 33b formed of a plurality of triangular fins, and the heat radiation performance can be increased. Thereby, the heat of the power module can be efficiently radiated, the temperature rise of the power module 15 can be suppressed, and the reliability can be improved.

(Embodiment 5)
In the above embodiment, heat radiation is mainly performed by the heat radiation fins 33 and 33b, but other heat radiation members may be arranged in the air passage. For example, the heat radiation effect may be enhanced by providing the heat receiving block 31 with fins. For example, as illustrated in FIG. 7, the heat receiving block 31a of the cooling unit 30b according to the fifth embodiment has flat additional fins 34 made of aluminum on the surface opposite to the surface in close contact with the power module 15. is crimped.

When the air conditioner is in operation, the blower 13 is in operation and air flows around the additional fins 34. As a result, the heat is radiated from the surfaces of the additional fins 34 to the surrounding air, which has the effect of cooling the power module 15 . Thus, compared to the case where the heat receiving block 31 does not have the additional fins 34, the heat of the power module 15 can be efficiently radiated.

(Embodiment 6)
In the third embodiment, as shown in FIG. 6, the radiation fins 33c are installed only on the windward side of the heat exchanger 20 on the air path connecting the air intake port 4 or the air intake port 6 and the air discharge port 8. there were. However, the present disclosure is not limited to this, and the heat pipe 32 may be provided with a plurality of radiating fins. For example, as shown in FIGS. 8A and 8B, the outdoor unit 1d of the sixth embodiment includes heat radiation fins 33d on the leeward side of the heat exchanger 20 in addition to the radiation fins 33c installed on the windward side of the heat exchanger 20. is installed.

The radiation fins 33d are formed of a plurality of flat plate-like fins made of aluminum and are crimped to the heat pipes 32 . In addition to the radiating fins 33c installed on the windward side of the heat exchanger 20, by installing the radiating fins 33d on the leeward side of the heat exchanger 20, the heat transfer area that contributes to heat radiation can be increased. Performance can be improved. Thereby, the temperature rise of the power module 15 can be suppressed, and the reliability can be improved.

(Modification 1)
In the above-described embodiment, each of the intake port 4 and the intake port 6 is formed from one opening, but the present invention is not limited to this. For example, the inlet 6 may be formed from multiple openings.

(Modification 2)
In the above embodiment, the heat exchanger 20 is formed of aluminum fins and copper circular tubes, but is not limited to this, and may be formed of a material with high thermal conductivity. For example, the heat exchanger 20 may be formed of aluminum fins and aluminum circular tubes.

(Modification 3)
Although the heat-receiving block 31 is made of aluminum in the above embodiment, it is not limited to this and may be made of a material having high thermal conductivity. For example, the heat receiving block 31 may be made of copper.

(Modification 4)
In the above-described embodiment, the heat receiving block 31 is made of aluminum and has a rectangular parallelepiped shape. is. For example, the heat receiving block 31 may be made of copper and may have a rectangular parallelepiped shape with a part missing.

(Modification 5)
In the above-described embodiment, the cooling unit 30 has a configuration in which one end portion 32a of the heat pipe 32 is inserted into the heat receiving block 31. However, the present invention is not limited to this. Any configuration that allows heat transfer with For example, in the cooling unit 30, one end 32a of the heat pipe 32 may be adhered to the surface of the heat receiving block 31 by soldering.

(Modification 6)
In the above embodiment, the cooling unit 30 is formed of one heat pipe 32, the heat receiving block 31, and the heat radiation fins 33, but is not limited to this. For example, the cooling unit 30 may be formed with two or more heat pipes 32 .

(Modification 7)
Although the heat radiation fins 33 and 33b have been exemplified as the heat radiation portion for radiating heat to the air generated by the blower 13, that is, the wind, the heat radiation portion is not limited to the fins as long as the heat can be radiated.

Although an example of using a fan as the blower 13 has been shown, the present invention is not limited to this, and air may be blown by a pump or the like.

An example of using the heat pipe 32 as a member for transferring heat generated in the heat generating portion to the heat dissipating portion was shown, but it is not limited to the heat pipe as long as it functions as a heat transfer member capable of transferring heat with high efficiency. configuration may be used.

Various embodiments and modifications of the present disclosure are possible without departing from the broad spirit and scope of the present disclosure. Moreover, the embodiments described above are for explaining the present disclosure, and do not limit the scope of the present disclosure. In other words, the scope of the present disclosure is indicated by the claims rather than the embodiments. Various modifications made within the scope of the claims and within the scope of equivalent disclosure are considered to be within the scope of the present disclosure.

This application is based on Japanese Patent Application No. 2022-002427 filed on January 11, 2022. The entire specification, claims, and drawings of Japanese Patent Application No. 2022-002427 are incorporated herein by reference.

1, 1a, 1b, 1c, 1d outdoor unit, 2 housing, 3 rear panel, 4, 6 intake port, 5 side panel, 7 front panel, 8 exhaust port, 9 partition plate, 10 machine room, 11 blower room, 12 compressor, 13 blower, 14 control board, 15 power module, 20 heat exchanger, 21 rear part, 22 side part, 23 bending part, 24 accommodation space, 26 U bend pipe, 30, 30a, 30b cooling unit, 31 , 31 a heat receiving block, 32 heat pipe, 32 a one end, 32 b the other end, 33, 33 a, 33 b, 33 c, 33 d radiation fins, 34 additional fins, 100 air conditioners, 200 indoor units, 300 refrigerant pipes, 400 buildings.

Claims

a housing in which an exhaust port and an intake port are formed;
an air blower that is arranged in the housing and generates wind in an air passage that connects the intake port and the exhaust port;
a heat exchanger, at least a portion of which is disposed in the air passage, and which exchanges heat between the air flowing in the air passage and a heat medium by the blower;
a heat transfer member thermally connected to the heating element housed in the housing;
a partition plate that divides the inside of the housing into a blower chamber in which the blower and the heat exchanger are arranged and a machine chamber in which the heating element is stored;
A corner portion of the housing in the fan chamber, which is thermally connected to the heat transfer member, is arranged on the windward side of the heat exchanger in the air passage connecting the air inlet and the air outlet, and a heat radiating part disposed in the
An outdoor unit of an air conditioner.
The housing is formed of a plurality of panels, and an air intake port is provided in each of a facing panel facing the exhaust panel in which the exhaust port is formed and two orthogonal panels orthogonal to the exhaust panel and facing each other. is formed and
The heat exchanger includes a plurality of heat transfer tubes, is L-shaped when viewed parallel to the facing panel and the orthogonal panel, and has a facing portion disposed on the side of the facing panel and the intake port. formed by an orthogonal portion disposed on the orthogonal panel side and a bent portion connecting the opposing portion and the orthogonal portion,
The heat radiating part is arranged in a region between the exhaust panel of the housing, the orthogonal panel in which the intake port is formed, and the orthogonal part of the heat exchanger.
The outdoor unit of the air conditioner according to claim 1.
The housing is a rectangular parallelepiped and is formed of a plurality of panels, one of a facing panel that faces the exhaust panel in which the exhaust port is formed, and two orthogonal panels that are orthogonal to the exhaust panel and face each other. An intake port is formed in each,
The heat exchanger includes a plurality of heat transfer tubes, is L-shaped when viewed parallel to the facing panel and the orthogonal panel, and has a facing portion disposed on the side of the facing panel and the intake port. formed by an orthogonal portion disposed on the orthogonal panel side and a bent portion connecting the opposing portion and the orthogonal portion,
The heat dissipation part is arranged in a region between the facing panel of the housing, the orthogonal panel in which the air intake is formed, and the bent part of the heat exchanger.
The outdoor unit of the air conditioner according to claim 1.
The heat transfer member is formed of a heat pipe in which a refrigerant is sealed,
The heat dissipation unit includes a plurality of heat dissipation fins fixed to the heat pipe,
The outdoor unit for an air conditioner according to claim 2 or 3.
The heat transfer tube includes a plurality of straight tube members and a U-shaped U-bend tube connecting adjacent straight tube members,
The plurality of heat dissipating fins included in the heat dissipating portion has a shape along the U-bend pipe arranged at one end of the orthogonal portion of the heat exchanger,
The outdoor unit of the air conditioner according to claim 4.
further comprising a heat receiving block to which the heating element is attached;
The heat-receiving block is connected to the heat transfer member, and has fins on a surface opposite to the surface on which the heating element is attached.
The outdoor unit for an air conditioner according to any one of claims 1 to 5.
The heat-receiving block is arranged on the leeward side of the heat exchanger in an air passage connecting the air intake port and the air exhaust port,
The heat dissipating portion may be a facing panel facing the exhaust panel having the exhaust port formed thereon and having the air intake port formed thereon, or two orthogonal panels orthogonal to the exhaust panel facing each other and having the air intake port formed thereon. positioned at least partially opposite the air inlet between the orthogonal panel and the heat exchanger;
The outdoor unit of the air conditioner according to claim 6.
In the heat transfer member, a plurality of fins are further arranged on the leeward side of the heat exchanger in the air passage connecting the air inlet and the air outlet.
The outdoor unit for an air conditioner according to any one of claims 1 to 7.
Equipped with the outdoor unit of the air conditioner according to any one of claims 1 to 8,
Air conditioner.