Outdoor unit and air conditioning equipment

Abstract

The outdoor unit comprises an outdoor unit shell, an outdoor heat exchanger, an outdoor fan, a compressor assembly and an electric control box assembly, the outdoor unit shell is provided with a middle partition plate, the outdoor heat exchanger, the outdoor fan, the compressor assembly and the electric control box assembly are arranged in the outdoor unit shell, the middle partition plate divides the space in the outdoor unit shell into a fan cavity and a compressor cavity, and at least part of the electric control box assembly is located in the compressor cavity. The electric control box component comprises an electric control module and a heat dissipation plate, the heat dissipation plate is used for dissipating heat of the electric control module, the heat dissipation plate is in heat conduction connection with the electric control module, a cavity is formed in the heat dissipation plate, heat conduction liquid is contained in the cavity, and the specific heat capacity of the heat conduction liquid is larger than that of the heat dissipation plate. According to the outdoor unit, the heat conduction liquid contained in the cavity improves the overall heat absorption capacity of the heat dissipation plate, the heat dissipation plate can more quickly conduct out heat generated by the electric control module, and therefore the heat dissipation efficiency and the heat dissipation effect of the heat dissipation plate on the electric control module are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of air conditioning technology, in particular to an outdoor unit and an air conditioning equipment. BACKGROUND

[0002] In the related art, an electric control box component with an electric control module is usually arranged in an outdoor unit to control the operation of a compressor assembly and other components. During the operation of the outdoor unit, the electric control module generates a large amount of heat, and the electric control module needs to be cooled to ensure normal operation.

[0003] However, due to the poor heat dissipation effect of the electric control module, the electric control box component is in a high-temperature working condition, which adversely affects the operation of the outdoor unit and also adversely affects the air conditioning capacity of the air conditioning equipment. Therefore, improvement is needed. SUMMARY

[0004] The present application aims to at least solve one of the technical problems in the prior art. To this end, one object of the present application is to provide an outdoor unit. According to the outdoor unit of the embodiments of the present application, the heat dissipation plate has a cavity, and the cavity contains a heat-conducting liquid with a specific heat capacity greater than that of the heat dissipation plate. The greater the specific heat capacity, the stronger the heat absorption capacity. Therefore, the heat absorption capacity of the heat-conducting liquid is greater than that of the heat dissipation plate. In this way, the heat-conducting liquid contained in the cavity improves the overall heat absorption capacity of the heat dissipation plate. The heat dissipation plate can more quickly conduct the heat generated by the electric control module, thereby improving the heat dissipation efficiency and effect of the heat dissipation plate on the electric control module. In turn, it can reduce or avoid the adverse effects of the electric control module being in a high-temperature working condition on the operating capacity of the outdoor unit, as well as reducing or avoiding the adverse effects on the air conditioning capacity of the air conditioning equipment.

[0005] The present application also provides an air conditioning equipment with the above-mentioned outdoor unit.

[0006] According to the outdoor unit of the first aspect of the present application, the outdoor unit comprises: an outdoor unit shell provided with a partition plate to separate the space in the outdoor unit shell into a fan cavity and a compressor cavity arranged along the left-right direction, the outdoor unit shell is formed with an air inlet and an air outlet communicating with the fan cavity; an outdoor heat exchanger and an outdoor fan arranged in the fan cavity; a compressor assembly arranged in the compressor cavity; an electric control box component arranged in the outdoor unit shell and at least part of the electric control box component located in the compressor cavity, the electric control box component comprising an electric control module and a heat dissipation plate, the heat dissipation plate being used to cool the electric control module, the heat dissipation plate being in thermal contact with the electric control module, the heat dissipation plate having a cavity therein, the cavity containing a heat-conducting liquid, the specific heat capacity of the heat-conducting liquid being greater than that of the heat dissipation plate.

[0007] According to the outdoor unit of the embodiment of the present application, the heat dissipation plate has the cavity, and the heat-conducting liquid with the specific heat capacity greater than that of the heat dissipation plate is contained in the cavity. The greater the specific heat capacity, the stronger the heat absorption capacity. Therefore, the heat absorption capacity of the heat-conducting liquid contained in the cavity is greater than that of the heat dissipation plate. In this way, the heat dissipation plate can more quickly dissipate the heat generated by the electronic control module, thereby improving the heat dissipation efficiency and effect of the heat dissipation plate on the electronic control module, and further reducing or avoiding the adverse effects of the electronic control module in the high-temperature working condition on the working capacity of the outdoor unit and the air conditioning equipment.

[0008] According to some embodiments of the present application, the heat-conducting liquid is water.

[0009] According to some embodiments of the present application, the density of the heat-conducting liquid is less than that of the heat dissipation plate.

[0010] According to some embodiments of the present application, further comprising: a heat dissipation pipe having a heat dissipation flow channel for the flow of the heat exchange medium, and the heat dissipation pipe is in heat-conducting connection with the electronic control module.

[0011] According to some optional embodiments of the present application, the specific heat capacity of the heat-conducting liquid is greater than that of the heat exchange medium.

[0012] According to some optional embodiments of the present application, the heat dissipation pipe is in heat-conducting connection with the heat dissipation plate.

[0013] According to some optional embodiments of the present application, the cavity extends along the length direction of the heat dissipation plate and is located at the middle part of the width direction of the heat dissipation plate, and at least part of the heat dissipation pipe is arranged around the outer circumferential side of the cavity.

[0014] According to some optional embodiments of the present application, at least part of the heat dissipation pipe defines a U-shaped area, and the cavity is located within the range of the U-shaped area.

[0015] According to some optional embodiments of the present application, the heat dissipation plate comprises a first heat dissipation plate and a second heat dissipation plate connected in an up-down manner, and a containing hole is defined between the first heat dissipation plate and the second heat dissipation plate, and at least part of the heat dissipation pipe is contained in the containing hole.

[0016] According to some optional embodiments of the present application, a heat-conducting layer is arranged between the heat dissipation pipe and the inner wall of the containing hole.

[0017] According to some optional embodiments of the present application, the cavity is formed on the first heat dissipation plate or the second heat dissipation plate, or the cavity is defined by the first heat dissipation plate and the second heat dissipation plate.

[0018] According to some optional embodiments of the present application, the first heat dissipation plate and the second heat dissipation plate are connected by fasteners, and the fasteners are spaced apart from the cavity.

[0019] According to some optional embodiments of the present application, part of a refrigerant circulation system of the outdoor unit forms the heat dissipation pipe.

[0020] According to some optional embodiments of the present application, the electric control box component further comprises a box body, the electric control module and the heat dissipation plate are arranged in the box body, the box body has an air inlet and an air outlet, the air inlet is in communication with an external space of the outdoor unit, and the air outlet is in communication with the fan cavity.

[0021] According to some optional embodiments of the present application, the outdoor unit shell is formed with an air inlet, the air inlet is located on a side wall of the compressor cavity, and the air inlet is in communication with the air inlet and the external space of the outdoor unit.

[0022] According to some optional embodiments of the present application, an air inlet space is defined between the electric control box component and the side wall of the compressor, and the air inlet space is in communication with the air inlet and the air inlet.

[0023] According to some optional embodiments of the present application, in the left-right direction, the air inlet is located on a side of the compressor cavity away from the fan cavity.

[0024] According to some optional embodiments of the present application, at least part of the air inlet is opposite to the air inlet in the left-right direction, and at least part of the air outlet is opposite to the air inlet in the left-right direction.

[0025] According to some optional embodiments of the present application, part of the box body is located in the fan cavity, and the part of the box body located in the fan cavity is formed with the air outlet.

[0026] According to some optional embodiments of the present application, a projection of the air outlet on a reference surface is a first projection, a projection of the box body on the reference surface is a second projection, the reference surface is a vertical plane perpendicular to the front-rear direction, and the first projection is spaced apart from the second projection in the left-right direction.

[0027] According to some optional embodiments of the present application, the electric control module comprises a circuit board and components arranged on the circuit board, and an included angle between the circuit board and a horizontal plane is less than 10°.

[0028] According to some optional embodiments of the present application, a heat dissipation air duct is defined between a lower side of the circuit board and the box body, the heat dissipation air duct is in communication with the air inlet and the air outlet, and at least part of the components is located in the heat dissipation air duct.

[0029] According to some optional embodiments of the present application, the electric control module comprises a first region and a second region, the first region generates more heat than the second region, and the heat dissipation plate is used for dissipating heat from the first region.

[0030] According to some optional embodiments of the present application, the first region and the second region are arranged side by side in the front-rear direction, and the second region is located in front of the first region.

[0031] According to some optional embodiments of the present application, the electric control box further comprises a box body, the electric control module and the heat dissipation plate are arranged in the box body, the box body has an air inlet and an air outlet, the air inlet is in communication with an external space of the outdoor unit, the air outlet is in communication with the fan cavity, and at least part of the air inlet is opposite to the second region in the left-right direction, and at least part of the air outlet is opposite to the second region in the left-right direction.

[0032] According to some optional embodiments of the present application, the outdoor unit shell is formed with an air inlet, the air inlet is located in a side wall of the compressor cavity, the air inlet is in communication with the air inlet and the external space of the outdoor unit, and the air inlet is opposite to the second region in the left-right direction.

[0033] The air conditioning equipment according to the second aspect of the present application comprises the outdoor unit according to the first aspect of the present application.

[0034] The air conditioning equipment according to the present application, by arranging the above-mentioned outdoor unit, the heat dissipation plate of the outdoor unit has a cavity and contains a heat-conducting liquid with a specific heat capacity greater than that of the heat dissipation plate in the cavity, the greater the specific heat capacity, the stronger the heat absorption capacity, so the heat absorption capacity of the heat-conducting liquid is greater than that of the heat dissipation plate, so that the heat-conducting liquid contained in the cavity improves the overall heat absorption capacity of the heat dissipation plate, and the heat dissipation plate can more quickly conduct the heat generated by the electric control module, thereby improving the heat dissipation efficiency and effect of the heat dissipation plate on the electric control module, and further reducing or avoiding the adverse effects of the electric control module in high-temperature working conditions on the working capacity of the outdoor unit, and reducing or avoiding the adverse effects on the air conditioning capacity of the air conditioning equipment.

[0035] Additional aspects and advantages of the present application will be made apparent from the following description, which, taken in conjunction with the accompanying drawings, which are shown by way of illustration, not limitation. BRIEF DESCRIPTION OF DRAWINGS

[0036] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the following description, taken in conjunction with the accompanying drawings, in which:

[0037] Figure 1is a schematic view of a partial structure of an outdoor unit according to some embodiments of the present application;

[0038] Figure 2 is Figure 1 is a schematic view of another perspective of a partial mechanism of an outdoor unit in

[0039] Figure 3 is Figure 1 is an exploded schematic view of an electric control box component in

[0040] Figure 4 is Figure 1 is an assembly schematic view of a heat dissipation pipe and a heat dissipation plate in

[0041] Figure 5 is Figure 1 is an exploded schematic view of a heat dissipation pipe and a heat dissipation plate in

[0042] Figure 6 is Figure 1 is an exploded schematic view of a heat dissipation pipe and a heat dissipation plate in a perspective state in

[0043] Figure 7 is Figure 1 is an assembly schematic view of a heat dissipation pipe and a heat dissipation plate in a perspective state in

[0044] Figure 8 is Figure 7 is an enlarged view of A in

[0045] Reference signs:

[0046] 100, outdoor unit;

[0047] 1, outdoor unit shell; 11, partition plate; 12, fan cavity; 13, compressor cavity; 14, air inlet; 15, air outlet; 16, air inlet; 17, waterproof cover; 171, flow guide surface;

[0048] 2, outdoor heat exchanger;

[0049] 3, compressor assembly;

[0050] 4, electric control box component; 41, box body; 411, air inlet; 412, air outlet; 42, electric control module; 421, circuit board; 422, component; 423, first area; 424, second area;

[0051] 5, air inlet space;

[0052] 6, heat dissipation air duct;

[0053] 7, heat dissipation pipe;

[0054] 8, heat dissipation plate; 81, first heat dissipation plate; 82, second heat dissipation plate; 83, accommodating hole; 84, cavity

[0055] 91, first support; 92, second support. DETAILED DESCRIPTION

[0056] Embodiments of the present application are described below in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the present application, and cannot be understood as a limitation of the present application.

[0057] Reference is made below Figures 1-8 The outdoor unit 100 and the air conditioning apparatus according to embodiments of the present application are described.

[0058] Reference is made below Figures 1-8 According to the outdoor unit 100 of the first aspect embodiment of the present application, the outdoor unit 100 comprises an outdoor unit shell 1 and an outdoor heat exchanger 2, an outdoor fan, a compressor assembly 3 and an electric control box component 4 arranged in the outdoor unit shell 1. A partition plate 11 is arranged in the outdoor unit shell 1, which divides the space in the outdoor unit shell 1 into a fan cavity 12 and a compressor cavity 13 arranged along the left-right direction. The outdoor heat exchanger 2 and the outdoor fan are arranged in the fan cavity 12, the compressor assembly 3 is arranged in the compressor cavity 13, and at least part of the electric control box component 4 is located in the compressor cavity 13.

[0059] At least part of the electric control box component 4 located in the compressor cavity 13 can include the following cases: for example, part of the electric control box component 4 is located in the compressor cavity 13, and another part of the electric control box is located in the fan cavity 12; for another example, the entire electric control box component 4 is located in the compressor cavity 13.

[0060] An air inlet 14 and an air outlet 15 are formed on the outdoor unit shell 1 and communicate with the fan cavity 12. During the operation of the outdoor fan, the outdoor fan can drive the airflow to enter the outdoor unit shell 1 through the air inlet 14, and exchange heat with the outdoor heat exchanger 2. After heat exchange, it is discharged to the outside of the outdoor unit shell 1 through the air outlet 15.

[0061] The compressor assembly 3 comprises a compressor, and the compressor assembly 3 can play a role of compressing and driving refrigerant in the refrigerant circulation loop of the outdoor unit 100.

[0062] The electric control box component 4 comprises an electric control module 42 and a heat dissipation plate 8. The electric control module 42 can be electrically connected to the outdoor fan, the compressor assembly 3 and the like, and can be used to control the operation of the outdoor fan, the compressor assembly 3 and the like. During the operation of the electric control module 42, a large amount of heat will be generated. The heat dissipation plate 8 is used to dissipate heat for the electric control module 42, so as to avoid that the electric control module 42 is damaged or the normal work of the outdoor unit 100 is affected due to heat. The heat dissipation plate 8 is in thermal connection with the electric control module 42. The heat dissipation plate 8 has a cavity 84. The cavity 84 contains a heat-conducting liquid. The specific heat capacity of the heat-conducting liquid is greater than the specific heat capacity of the heat dissipation plate 8. The greater the specific heat capacity, the stronger the heat absorption capacity. The specific heat capacity of the heat-conducting liquid is greater than the specific heat capacity of the heat dissipation plate 8. Therefore, the heat absorption capacity of the heat-conducting liquid is stronger than the heat absorption capacity of the heat dissipation plate 8. Forming the cavity 84 containing the heat-conducting liquid on the heat dissipation plate 8 is beneficial to improve the overall heat absorption capacity of the heat dissipation plate 8, so that the heat dissipation plate 8 can more quickly dissipate the heat generated by the electric control module 42, thereby improving the heat dissipation effect of the heat dissipation plate 8 on the electric control module 42.

[0063] Optionally, the electric control box component 4 further comprises a first support 91. The heat dissipation plate 8 is installed on the first support 91. The first support 91 is installed on the electric control module 42.

[0064] Optionally, the cavity 84 can be a sealed cavity 84.

[0065] According to the outdoor unit 100 of the embodiment of the present application, the heat dissipation plate 8 has the cavity 84. The cavity 84 contains the heat-conducting liquid with the specific heat capacity greater than the specific heat capacity of the heat dissipation plate 8. The greater the specific heat capacity, the stronger the heat absorption capacity. Therefore, the heat absorption capacity of the heat-conducting liquid is greater than the heat absorption capacity of the heat dissipation plate 8. The heat-conducting liquid contained in the cavity 84 improves the overall heat absorption capacity of the heat dissipation plate 8. The heat dissipation plate 8 can more quickly dissipate the heat generated by the electric control module 42, thereby improving the heat dissipation efficiency and heat dissipation effect of the heat dissipation plate 8 on the electric control module 42. In turn, the adverse effects of the high-temperature working condition of the electric control module 42 on the working capacity of the outdoor unit 100 and the adverse effects on the air conditioning capacity of the air conditioning equipment can be reduced or avoided.

[0066] According to some embodiments of the present application, the heat-conducting liquid is water. By using water as the heat-conducting liquid, water is a common liquid with a large specific heat capacity. Water has good heat absorption capacity, thereby effectively improving the overall heat absorption capacity of the heat dissipation plate 8. In addition, water has a low cost.

[0067] According to some embodiments of the present application, the density of the heat-conducting liquid is less than the density of the heat dissipation plate 8. By using the heat-conducting liquid with the density less than the density of the heat dissipation plate 8, the weight of the heat-conducting liquid with the same volume is smaller, thereby being beneficial to reduce the weight of the heat dissipation plate 8, and in turn being beneficial to the lightweight of the outdoor unit 100.

[0068] ReferenceFigures 1-8 According to some embodiments of the present application, the outdoor unit 100 further comprises a heat dissipation pipe 7 having a heat dissipation flow channel for the flow of heat exchange medium therein, and the heat dissipation pipe 7 is in heat conduction connection with the electric control module 42. Optionally, the heat exchange medium flowing in the heat dissipation pipe 7 can be refrigerant. By providing the heat dissipation pipe 7 and making the heat dissipation pipe 7 in heat conduction connection with the electric control module 42, the heat dissipation pipe 7 can further improve the heat dissipation effect on the electric control module 42.

[0069] According to some optional embodiments of the present application, the specific heat capacity of the heat conduction liquid is greater than the specific heat capacity of the heat exchange medium. By making the specific heat capacity of the heat conduction liquid greater than the specific heat capacity of the heat exchange medium, the heat conduction liquid has good heat conduction capacity to effectively dissipate heat from the electric control module 42.

[0070] With reference to Figures 3-8 According to some optional embodiments of the present application, the heat dissipation pipe 7 is in heat conduction connection with the heat dissipation plate 8. By making the heat dissipation pipe 7 in heat conduction connection with the heat dissipation plate 8, the heat dissipation pipe 7 can timely conduct the heat on the heat dissipation plate 8 out, so as to effectively dissipate heat from the electric control module 42.

[0071] With reference to Figures 6-8 According to some optional embodiments of the present application, the cavity 84 extends along the length direction of the heat dissipation plate 8 and is located at the middle part of the heat dissipation plate 8 in the width direction, and at least part of the heat dissipation pipe 7 surrounds the outer peripheral side of the cavity 84. The heat dissipation pipe 7 and the cavity 84 are reasonably arranged, and such arrangement makes the heat conduction liquid in the cavity 84 and the heat exchange area of the heat dissipation pipe 7 and the electric control module 42 also larger, so as to fully utilize the space on the heat dissipation plate 8; and the heat conduction liquid in the cavity 84 can uniformly dissipate heat from the electric control module 42, and the heat dissipation pipe 7 can further dissipate heat from the heat conduction liquid in the cavity 84, all of which are conducive to improving the heat dissipation effect on the electric control module 42.

[0072] With reference to Figures 3-8 According to some optional embodiments of the present application, at least part of the heat dissipation pipe 7 defines a U-shaped region, and the cavity 84 is located within the range of the U-shaped region. Among them, the at least part of the heat dissipation pipe 7 defining the U-shaped region can include the following several cases: for example, part of the heat dissipation pipe 7 defines the U-shaped region; and for example, the whole of the heat dissipation pipe 7 defines the U-shaped region. By making at least part of the heat dissipation pipe 7 define the U-shaped region, and the cavity 84 is located within the range of the U-shaped region, the heat dissipation pipe 7 and the cavity 84 fully utilize the space on the heat dissipation plate 8, and the structure arrangement of the heat dissipation plate 8 and the cavity 84 is compact.

[0073] With reference to Figures 3-8According to some optional embodiments of the present application, the heat dissipation plate 8 comprises a first heat dissipation plate 81 and a second heat dissipation plate 82 connected in sequence, and a receiving hole 83 is defined between the first heat dissipation plate 81 and the second heat dissipation plate 82, and at least a part of the heat dissipation pipe 7 is received in the receiving hole 83. For example, a part of the heat dissipation pipe 7 is received in the receiving hole 83; for example, the whole heat dissipation pipe 7 is received in the receiving hole 83. Such arrangement is conducive to improving the installation stability of the heat dissipation pipe 7, and conducive to sufficient heat exchange between the heat dissipation plate 8 and the heat dissipation pipe 7, and further conducive to improving the heat dissipation effect on the electronic control module 42.

[0074] Optionally, the first heat dissipation plate 81 and the second heat dissipation plate 82 are detachably connected, for example, the first heat dissipation plate 81 and the second heat dissipation plate 82 are connected by fasteners.

[0075] According to some optional embodiments of the present application, a heat conduction layer is arranged between the heat dissipation pipe 7 and the inner wall of the receiving hole 83. By arranging the heat conduction layer between the heat dissipation pipe 7 and the inner wall of the receiving hole 83, the heat exchange effect between the heat dissipation pipe 7 and the heat dissipation plate 8 is improved, and the heat dissipation effect on the electronic control module 42 is improved. Optionally, the heat conduction layer is a heat conduction silicone grease.

[0076] With reference to Figures 6-8 According to some optional embodiments of the present application, a cavity 84 is formed on the first heat dissipation plate 81 or the second heat dissipation plate 82 or the first heat dissipation plate 81 and the second heat dissipation plate 82 jointly define the cavity 84. The cavity 84 is arranged in a flexible manner, and can be flexibly matched with the heat dissipation requirement of the electronic control module 42.

[0077] Optionally, the cavity 84 can also be formed on the first heat dissipation plate 81 and the second heat dissipation plate 82, and the cavity 84 contains heat conduction liquid.

[0078] With reference to Figures 3-8 According to some optional embodiments of the present application, the first heat dissipation plate 81 and the second heat dissipation plate 82 are connected by fasteners, and the fasteners are spaced apart from the cavity 84. By connecting the first heat dissipation plate 81 and the second heat dissipation plate 82 by fasteners, and spacing the fasteners from the cavity 84, the tightness of the cavity 84 is not affected by the arrangement of the fasteners, so that the leakage of the heat conduction liquid caused by the arrangement of the fasteners can be avoided.

[0079] With reference to Figures 1-2 According to some optional embodiments of the present application, part of the pipeline of the refrigerant circulation system of the outdoor unit 100 constitutes the heat dissipation pipe 7. By making part of the pipeline of the refrigerant circulation system of the outdoor unit 100 constitute the heat dissipation pipe 7, the heat dissipation pipe 7 and the electronic control module 42 can be effectively heat exchanged by using the refrigerant as the heat exchange medium, and the heat exchange pipe and the heat exchange medium can no longer be separately arranged.

[0080] With reference to Figures 1-3According to some optional embodiments of the present application, the electric control box component 4 further comprises a box body 41, the electric control module 42 and the heat dissipation plate 8 are arranged in the box body 41, the box body 41 is provided with an air inflow port 411 and an air outflow port 412, the air inflow port 411 is communicated with the outside space of the outdoor unit 100, and the air outflow port 412 is communicated with the fan cavity 12. During the operation of the outdoor unit 100, the operation of the outdoor fan causes the air pressure difference between the fan cavity 12 and the outside space of the outdoor unit 100, so that the air flow in the outside space can enter the box body 41 through the air inflow port 411 of the box body 41, flow through the electric control module 42 in the box body 41, and exchange heat with the electric control module 42 to achieve the heat dissipation of the electric control module 42, and then the air flow can flow out of the box body 41 through the air outflow port 412 and enter the fan cavity 12.

[0081] During the operation of the outdoor unit 100, the air flow in the inside of the outdoor unit shell 1 has a high temperature, and if the air flow in the inside of the outdoor unit shell 1 is used to dissipate heat of the electric control module 42 of the electric control box component 4, the heat dissipation effect is poor. Therefore, using the air flow in the outside space of the outdoor unit shell 1 to dissipate heat of the electric control module 42 is beneficial to improve the heat dissipation effect, reduce or avoid the electric control box component 4 in the high-temperature working condition, reduce or avoid the electric control box component 4 from affecting the operation of the outdoor unit 100 due to the high-temperature working condition, and further reduce or avoid the adverse effect on the air conditioning capacity of the air conditioning equipment.

[0082] For example, when the outdoor unit 100 is applied to a variable frequency air conditioning equipment, using the air flow in the outside space of the outdoor unit shell 1 to dissipate heat of the electric control module 42 to improve the heat dissipation effect can effectively avoid the outdoor unit 100 from being self-limited in frequency due to the heat of the electric control box component 4 in the high-temperature working condition, so that the air conditioning equipment can achieve good air conditioning effect.

[0083] Reference Figures 1-3 According to some optional embodiments of the present application, the outdoor unit shell 1 is formed with an air inlet 16, the air inlet 16 is located on the side wall of the compressor cavity 13, and the air inlet 16 is communicated with the air inflow port 411 and the outside space of the outdoor unit 100. By forming the air inlet 16 communicated with the air inflow port 411 and the outside space on the outdoor unit shell 1, the air flow in the outside space can smoothly enter the box body 41 through the air inflow port 411 via the air inlet 16; by locating the air inlet 16 on the side wall of the compressor cavity 13, the distance between the air inlet 16 and the fan cavity 12 is far, which is beneficial to reduce the influence of the air flow out of the fan cavity 12 on the temperature of the air flow at the air inlet 16, and is beneficial to effectively dissipate heat of the electric control module 42 by the air flow entering the box body 41 via the air inlet 16.

[0084] Reference Figures 1-3According to some optional embodiments of the present application, the air inlet space 5 is defined between the electric control box component 4 and the side wall of the compressor, and the air inlet space 5 is communicated with the air inlet 16 and the air flow inlet 411. By defining the air inlet space 5 between the electric control box component 4 and the side wall of the compressor, which is communicated with the air inlet 16 and the air flow inlet 411, the air flow can flow into the box body 41 through the air flow inlet 411 to cool the electric control module 42.

[0085] During the operation of the outdoor unit 100, the rotation of the outdoor fan causes the air pressure difference between the fan cavity 12 and the outside space of the outdoor unit 100, so that the air flow in the outside space enters the outdoor unit shell 1 through the air inlet 16 under the action of the air pressure difference, and then flows through the air inlet space 5 towards the air flow inlet 411 and enters the box body 41 through the air flow inlet 411 of the box body 41, and then flows through the electric control module 42 in the box body 41 to exchange heat with the electric control module 42 to cool the electric control module 42, and then the air flow flows out of the box body 41 through the air flow outlet 412 and enters the fan cavity 12.

[0086] With reference to Figures 1-3 According to some optional embodiments of the present application, in the left-right direction, the air inlet 16 is located on the side of the compressor cavity 13 away from the fan cavity 12. By locating the air inlet 16 on the side of the compressor cavity 13 away from the fan cavity 12 in the left-right direction, the distance between the air inlet 16 and the fan cavity 12 is farther, which is beneficial to reduce the influence of the air flow in the fan cavity 12 on the temperature of the air flow at the air inlet 16, and is beneficial to effectively cool the electric control module 42 by the air flow entering the box body 41 through the air inlet 16.

[0087] With reference to Figures 1-3 According to some optional embodiments of the present application, at least part of the air flow inlet 411 is opposite to the air inlet 16 in the left-right direction, for example, part of the air flow inlet 411 is opposite to the air inlet 16 in the left-right direction; for example, the whole air flow inlet 411 is opposite to the air inlet 16 in the left-right direction. At least part of the air flow outlet 412 is opposite to the air flow inlet 411 in the left-right direction, for example, part of the air flow outlet 412 is opposite to the air flow inlet 411 in the left-right direction; for example, the whole air flow outlet 412 is opposite to the air flow inlet 411 in the left-right direction. By making at least part of the air flow inlet 411 opposite to the air inlet 16 in the left-right direction, and making at least part of the air flow outlet 412 opposite to the air flow inlet 411 in the left-right direction, when the air flow in the outside space flows towards the air flow outlet 412 through the air inlet 16, the air flow receives less resistance, more air can flow through the electric control module 42, air loss is reduced, and the wind speed is ensured, thereby realizing effective air cooling effect.

[0088] With reference to Figures 1-3According to some optional embodiments of the present application, the air inlet 16 comprises a plurality of sub-air inlets arranged side by side in the up-down direction. By forming the air inlet 16 to comprise a plurality of sub-air inlets arranged side by side in the up-down direction, the structural strength of the side wall of the compressor cavity 13 can be improved.

[0089] With reference to Figures 1-2 According to some optional embodiments of the present application, a waterproof cover 17 is arranged on the outer surface of the side wall. By arranging the waterproof cover 17, rainwater and the like can be prevented from entering the electric control box component 4 through the air inlet 16, thereby avoiding safety accidents such as electric leakage. The waterproof cover 17 is a plurality of covers arranged outside the sub-air inlets, and the number of the waterproof covers 17 is the same as and corresponds to the number of the sub-air inlets. By arranging the waterproof cover 17 to be a plurality of covers corresponding to the number of the sub-air inlets, the waterproof performance of the waterproof cover 17 can be improved. The waterproof cover 17 protrudes from the side wall and defines a wind guide cavity between the side wall. The wind guide cavity is in communication with the air inlet 16 and the external space. By arranging the waterproof cover 17 to define the wind guide cavity between the side wall, the wind guide cavity is in communication with the air inlet 16 and the external space, which can reduce the interference of the waterproof cover 17 to the airflow at the air inlet 16.

[0090] With reference to Figures 1-2 According to some optional embodiments of the present application, a flow guide surface 171 is formed on the outer surface of the waterproof cover 17, and the flow guide surface 171 extends in the up-down direction away from the air inlet 16. By arranging the flow guide surface 171 on the outer surface of the waterproof cover 17 and extending in the up-down direction away from the air inlet 16, the flow guide surface 171 can guide rainwater and the like to flow away from the air inlet 16, thereby optimizing the waterproof effect of the waterproof cover 17.

[0091] With reference to Figures 1-3 According to some optional embodiments of the present application, part of the box body 41 is located in the fan cavity 12, and the part of the box body 41 located in the fan cavity 12 is formed with an airflow outlet 412. By arranging the part of the box body 41 located in the fan cavity 12 with the airflow outlet 412, an effective air pressure difference can be formed between the airflow outlet 412 and the airflow inlet 411 during the operation of the outdoor fan, so that the airflow in the external space can smoothly enter the box body 41 through the airflow inlet 411 to cool the electric control module 42.

[0092] Optionally, the box body 41 is located in the compressor cavity 13 as a whole, the left side wall of the box body 41 is flush with the partition plate 11, and the airflow outlet 412 is located on the left side wall of the box body 41.

[0093] With reference to Figures 1-2According to some optional embodiments of the present application, the projection of the air outlet 15 on the reference plane is a first projection, the projection of the box body 41 on the reference plane is a second projection, the reference plane is a vertical plane perpendicular to the front-rear direction, and the first projection is spaced apart from the second projection. By spacing apart the first projection and the second projection, the part of the box body 41 located in the fan cavity 12 can be prevented from shielding the air outlet 15, thereby affecting the air outlet effect of the air outlet 15.

[0094] With reference to Figures 1-3 According to some embodiments of the present application, the electric control module 42 comprises a circuit board 421 and components 422 arranged on the circuit board 421, and the included angle between the circuit board 421 and the horizontal plane is less than 10°. For example, the circuit board 421 is horizontally arranged, and the circuit board 421 is parallel to the horizontal plane. For example, the included angle between the circuit board 421 and the horizontal plane is 8°, 5°, 3°, etc. By arranging the included angle between the circuit board 421 and the horizontal plane to be less than 10°, the electric control module 42 is convenient to arrange and easy to assemble, which is beneficial to improving the assembly production efficiency of the outdoor unit 100.

[0095] With reference to Figures 1-2 According to some optional embodiments of the present application, the lower side of the circuit board 421 and the box body 41 define a heat dissipation air duct 6, the heat dissipation air duct 6 is communicated with the air inlet 411 and the air outlet 412, and at least part of the components 422 are located in the heat dissipation air duct 6. With reference to Figures 1-3 According to some optional embodiments of the present application, the lower side of the circuit board 421 and the box body 41 define a heat dissipation air duct 6, the heat dissipation air duct 6 is communicated with the air inlet 411 and the air outlet 412, and at least part of the components 422 are located in the heat dissipation air duct 6. For example, part of the components 422 are located in the heat dissipation air duct 6; for example, all of the components 422 are located in the heat dissipation air duct 6. By defining the heat dissipation air duct 6 between the lower side of the circuit board 421 and the box body 41 and locating at least part of the components 422 in the heat dissipation air duct 6, the air flow entering the box body 41 through the air inlet 411 can flow through at least part of the components 422 and effectively exchange heat with them to achieve heat dissipation.

[0096] With reference to Figures 1-2 According to some optional embodiments of the present application, the electric control box component 4 is mounted on the upper end of the partition plate 11. By mounting the electric control box component 4 on the upper end of the partition plate 11, the electric control box component 4 can be prevented from interfering with other components in the fan cavity 12 or the compressor cavity 13, and the space layout in the outdoor unit 100 is reasonable.

[0097] Optionally, the partition plate 11 is formed with a avoiding opening for avoiding the electric control box, and the electric control box is arranged in the avoiding opening.

[0098] Optionally, the partition plate 11 is formed with a avoiding opening for avoiding the electric control box, and the air outlet 412 coincides with the avoiding opening.

[0099] Optionally, the box body 41 comprises a first box body 41 and a second box body 41 detachably connected along the up-down direction, the electric control module 42 is installed on the first box body 41, the second box body 41 is located below the first box body 41 and is supported on the partition plate 11, the lower side of the circuit board 421 and the second box body 41 define a heat dissipation channel, and at least part of the electric control module 42 is located in the heat dissipation channel.

[0100] With reference to Figures 1-3 , according to some optional embodiments of the present application, the electric control module 42 comprises a first region 423 and a second region 424, the heat generation of the first region 423 is greater than that of the second region 424, and the heat dissipation plate 8 is used for dissipating heat for the first region 423. By using the heat dissipation pipe 7 to dissipate heat for the first region 423 with greater heat generation, effective heat dissipation for the first region 423 of the electric control module 42 with greater heat generation is facilitated, so that the situation of local overheating of the electric control module 42 can be effectively avoided.

[0101] For example, the components 422 located in the first region 423 of the electric control module 42 comprise a rectifier bridge stack, an IGBT, an FRD, a fan module, a press module, etc.; for example, the components 422 located in the second region 424 of the electric control module 42 comprise a common mode inductor, a PFC inductor, a capacitor, a power supply, etc.

[0102] With reference to Figures 1-3 , according to some optional embodiments of the present application, the first region 423 and the second region 424 are arranged side by side along the front-rear direction, and the second region 424 is located on the front side of the first region 423. By arranging the first region 423 and the second region 424 side by side along the front-rear direction, the partition layout of the first region 423 and the second region 424 is regular and reasonable, which also facilitates the arrangement of the heat dissipation pipe 7.

[0103] With reference to Figures 1-3According to some optional embodiments of the present application, the electric control box component 4 further comprises a box body 41, the electric control module 42 and the heat dissipation plate 8 are arranged in the box body 41, the box body 41 has an air inflow port 411 and an air outflow port 412, the air inflow port 411 is communicated with the outside space of the outdoor unit 100, the air outflow port 412 is communicated with the fan cavity 12, at least part of the air inflow port 411 is opposite to the second area 424 in the left-right direction, for example, part of the air inflow port 411 is opposite to the second area 424 in the left-right direction; for example, the whole of the air inflow port 411 is opposite to the second area 424 in the left-right direction. At least part of the air outflow port 412 is opposite to the second area 424, for example, part of the air outflow port 412 is opposite to the second area 424; for example, the whole of the air outflow port 412 is opposite to the second area 424. By making at least part of the air inflow port 411 opposite to the second area 424 and at least part of the air outflow port 412 opposite to the second area 424, the air flow of the outside space can effectively dissipate heat for the second area 424, so that the heat generated by the first area 423 and the second area 424 of the electric control module 42 can be taken away in time, so that the electric control module 42 can work normally.

[0104] With reference to Figures 1-3 According to some optional embodiments of the present application, the outdoor unit shell 1 is formed with an air inlet 16, the air inlet 16 is located on the side wall of the compressor cavity 13, the air inlet 16 is communicated between the air inflow port 411 and the outside space of the outdoor unit 100, and the air inlet 16 is opposite to the second area 424 in the left-right direction. By making the air inlet 16 opposite to the second area 424 in the left-right direction, the air flow entering through the air inlet 16 can flow through the second area 424 and fully exchange heat with the components 422 of the second area 424, so as to effectively dissipate heat.

[0105] With reference to Figures 1-3 According to some optional embodiments of the present application, the electric control module 42 comprises a circuit board 421 and components 422 arranged on the circuit board 421, the height of the components 422 of the second area 424 is greater than the height of the components 422 of the first area 423. By making the height of the components 422 of the second area 424 greater than the height of the components 422 of the first area 423, it is convenient to arrange the heat dissipation pipe 7 in the first area 423 and conducive to the miniaturization of the whole electric control module 42.

[0106] With reference to Figures 1-3According to some optional embodiments of the present invention, the second housing 41 includes a first sidewall, a second sidewall, and a third sidewall connected sequentially in the circumferential direction. The first sidewall and the third sidewall are arranged opposite each other in the front-rear direction, and the first sidewall is located in front of the third sidewall. The second sidewall is connected between the end of the first sidewall near the fan cavity 12 and the end of the third sidewall near the fan cavity 12. An airflow outlet 412 is formed on the second sidewall. The other end of the first sidewall is located in the compressor cavity 13, and the other end of the third sidewall is located in the compressor cavity 13 or flush with the middle partition 11. The other ends of the first sidewall and the other ends of the third sidewall define the airflow outlet 412.

[0107] The electrical control box component 4 also includes a second bracket 92, which is located below the second heat sink 82 and supported between the second heat sink 82 and the bottom wall of the second box body 41.

[0108] Optionally, the heat sink 8 is made of aluminum; optionally, the heat pipe 7 is made of aluminum.

[0109] Optionally, the airflow outlet 412 includes a first airflow outlet 412 and a second airflow outlet 412, the first airflow outlet 412 being located on the second sidewall, and the second airflow outlet 412 being located on the portion of the third sidewall located inside the fan cavity 12.

[0110] Next, we will refer to Figures 1-8 The outdoor unit 100 of some embodiments of the present invention will be described.

[0111] like Figures 1-8 As shown, in this embodiment, the outdoor unit 100 includes an outdoor unit housing 1, an outdoor heat exchanger 2, an outdoor fan, a compressor assembly 3, and an electrical control box 4. The outdoor heat exchanger 2, the outdoor fan, the compressor assembly 3, and the electrical control box 4 are all located inside the outdoor unit housing 1. The electrical control box 4 is used to control the operation of other components such as the outdoor fan and the compressor assembly 3.

[0112] The outdoor unit housing 1 includes a front panel, side panels, and a rear panel arranged sequentially in a circumferential direction, which define an internal receiving space for the outdoor unit housing 1. The outdoor unit housing 1 also includes a top panel, which is located above the front panel, side panels, and rear panel and covers the receiving space. A central partition 11 is also provided inside the outdoor unit housing 1, which divides the receiving space inside the outdoor unit housing 1 into a fan chamber 12 and a compressor chamber 13 arranged in a left-right direction.

[0113] The outdoor heat exchanger 2 and the outdoor fan are arranged in the fan cavity 12, and the outdoor casing 1 is formed with an air inlet 14 and an air outlet 15 which communicate with the fan cavity 12. During operation of the outdoor fan, the outdoor fan can drive air to flow into the outdoor casing 1 through the air inlet 14, exchange heat with the outdoor heat exchanger 2, and then be discharged to the outside of the outdoor casing 1 through the air outlet 15. The compressor assembly 3 is arranged in the compressor cavity 13 and includes a compressor. The compressor assembly 3 can compress and drive refrigerant in the refrigerant circulation loop of the outdoor unit 100.

[0114] The electric control box component 4 is mounted to the upper end of the partition plate 11. The electric control box component 4 includes a box body 41 and an electric control module 42 arranged in the box body 41. The box body 41 is provided with an air inlet 411 and an air outlet 412. The air inlet 411 communicates with the outside space of the outdoor unit 100, and the air outlet 412 communicates with the fan cavity 12. Part of the box body 41 is located in the fan cavity 12, and another part of the box body 41 is located in the compressor cavity 13. The part of the box body 41 located in the fan cavity 12 is formed with the air outlet 412, and the part of the box body 41 located in the compressor cavity 13 is formed with the air inlet 411. The projection of the air outlet 15 on the reference plane is a first projection, and the projection of the box body 41 on the reference plane is a second projection. The reference plane is a vertical plane perpendicular to the front-rear direction. The first projection is spaced apart from the second projection.

[0115] The outdoor casing 1 is formed with an air inlet 16 located on the side wall of the compressor cavity 13. In the left-right direction, the air inlet 16 is located on the side of the compressor cavity 13 away from the fan cavity 12. The electric control box component 4 and the side wall of the compressor define an air inlet space 5. The air inlet 16 communicates the air inlet 411 with the outside space of the outdoor unit 100, and the air inlet space 5 communicates the air inlet 16 with the air inlet 411. At least part of the air inlet 411 is opposite the air inlet 16 in the left-right direction, and at least part of the air outlet 412 is opposite the air inlet 411 in the left-right direction.

[0116] During operation of the outdoor unit 100, the operation of the outdoor fan causes a pressure difference between the fan cavity 12 and the outside space of the outdoor unit 100. As a result, air in the outside space flows into the outdoor casing 1 through the air inlet 16 under the action of the pressure difference, flows toward the air inlet 411 through the air inlet space 5, and enters the box body 41 through the air inlet 411 of the box body 41. The air flows through the electric control module 42 in the box body 41, fully exchanges heat with the electric control module 42 to achieve heat dissipation of the electric control module 42, and then flows out of the box body 41 through the air outlet 412 and into the fan cavity 12.

[0117] The air inlet 16 comprises a plurality of sub-air inlets arranged side by side in the up-down direction. The outer surface of the side wall is provided with a plurality of waterproof covers 17, which are arranged outside the sub-air inlets. The number of waterproof covers 17 is the same as that of the sub-air inlets and corresponds one by one. The waterproof covers 17 protrude from the side wall and define air guide cavities between the side wall and the waterproof covers 17. The air guide cavities are in communication with the air inlet 16 and the external space. The outer surface of the waterproof cover 17 is formed with a flow guide surface 171, which extends in the direction away from the air inlet 16 in the up-down direction.

[0118] The electric control module 42 comprises a circuit board 421 and components 422 arranged on the circuit board 421. The angle between the circuit board 421 and the horizontal plane is less than 10°. The electric control module 42 comprises a first region 423 and a second region 424 arranged side by side in the front-rear direction. The heat generation of the first region 423 is greater than that of the second region 424. The height of the components 422 in the second region 424 is greater than that of the components 422 in the first region 423.

[0119] The outdoor unit 100 further comprises a heat dissipation pipe 7 and a heat dissipation plate 8. The heat dissipation plate 8 is arranged in the box body 41 and is in thermal contact with the electric control module 42. The heat dissipation pipe 7 is in thermal contact with the heat dissipation plate 8. The heat dissipation plate 8 comprises a first heat dissipation plate 81 and a second heat dissipation plate 82 arranged above and below. The first heat dissipation plate 81 and the second heat dissipation plate 82 define a receiving hole 83 therebetween. Part of the heat dissipation pipe 7 is arranged in the receiving hole 83.

[0120] The heat dissipation plate 8 has a cavity 84 therein. The cavity 84 contains a heat-conducting liquid. The specific heat capacity of the heat-conducting liquid is greater than that of the heat dissipation plate 8. The density of the heat-conducting liquid is less than that of the heat dissipation plate 8. For example, the heat-conducting liquid is water.

[0121] The cavity 84 extends along the length direction of the heat dissipation plate 8 and is located at the middle of the width direction of the heat dissipation plate 8. Part of the heat dissipation pipe 7 surrounds the outer circumferential side of the cavity 84. Part of the heat dissipation pipe 7 defines a U-shaped region. The cavity 84 is located within the U-shaped region.

[0122] For example, the cavity 84 is formed on the first heat dissipation plate 81 or the second heat dissipation plate 82 or is defined by the first heat dissipation plate 81 and the second heat dissipation plate 82 together.

[0123] The heat dissipation pipe 7 has a heat dissipation flow channel for the flow of a heat exchange medium. The heat dissipation pipe 7 is in thermal contact with the electric control module 42. Part of the refrigerant circulation system of the outdoor unit 100 constitutes the heat dissipation pipe 7. The heat exchange medium in the heat dissipation flow channel is refrigerant. The heat dissipation pipe 7 is used for heat dissipation of the first region 423.

[0124] The lower side of the circuit board 421 and the box body 41 define a heat dissipation air duct 6, the heat dissipation air duct 6 is communicated with the air inlet 411 and the air outlet 412, and at least part of the components 422 is located in the heat dissipation air duct 6. In the left-right direction, at least part of the air inlet 411 is opposite to the second area 424, and at least part of the air outlet 412 is opposite to the second area 424. In the left-right direction, the air inlet 411 is opposite to the second area 424.

[0125] According to the air conditioning equipment of the second aspect of the present application, the outdoor unit 100 according to the first aspect of the present application is provided.

[0126] According to the air conditioning equipment of the present application, by providing the outdoor unit 100, the heat dissipation plate 8 of the outdoor unit 100 has a cavity 84, and the heat dissipation plate 8 contains a heat-conducting liquid with a specific heat capacity greater than that of the heat dissipation plate 8 in the cavity 84. The greater the specific heat capacity, the stronger the heat absorption capacity. Therefore, the heat absorption capacity of the heat-conducting liquid is greater than that of the heat dissipation plate 8. The heat-conducting liquid contained in the cavity 84 improves the overall heat absorption capacity of the heat dissipation plate 8. The heat dissipation plate 8 can more quickly dissipate the heat generated by the electronic control module 42, thereby improving the heat dissipation efficiency and effect of the heat dissipation plate 8 on the electronic control module 42. Further, the adverse effects of the electronic control module 42 in a high-temperature working condition on the working capacity of the outdoor unit 100 and the air conditioning equipment can be reduced or avoided.

[0127] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0128] In the description of the present application, "first feature" and "second feature" can include one or more features.

[0129] In the description of the present application, "a plurality of" means two or more.

[0130] In the description of the present application, "above" or "below" the first feature and the second feature can include direct contact between the first and second features, or indirect contact between the first and second features through another feature therebetween.

[0131] In the description of the present application, above, over and on with respect to a first feature and a second feature include the first feature directly on and obliquely on the second feature, or simply mean that the first feature is horizontally higher than the second feature.

[0132] In the description of the present application, the description with reference to the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0133] Although the embodiments of the present application have been shown and described, it will be understood by those having ordinary skill in the art that various changes, modifications, alternatives and variations can be made thereto without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An outdoor unit, characterized in that, include: The outdoor unit housing is provided with a middle partition to divide the space inside the outdoor unit housing into a fan chamber and a compressor chamber arranged in the left and right directions. An air inlet and an air outlet are formed on the outdoor unit housing to communicate with the fan chamber. An outdoor heat exchanger and an outdoor fan are located inside the fan cavity; The compressor assembly is located within the compressor cavity; An electrical control box component is disposed inside the outdoor unit housing, and at least a portion of the electrical control box component is located within the compressor cavity. The electrical control box component includes an electrical control module and a heat sink. The heat sink is used to dissipate heat from the electrical control module and is thermally connected to the electrical control module. The heat sink has a cavity inside, and the cavity contains a heat-conducting liquid. The specific heat capacity of the heat-conducting liquid is greater than the specific heat capacity of the heat sink.

2. The outdoor unit according to claim 1, characterized in that, The heat-conducting liquid is water.

3. The outdoor unit according to claim 1, characterized in that, The density of the heat-conducting liquid is less than the density of the heat sink.

4. The outdoor unit according to claim 1, characterized in that, Also includes: The heat sink has a heat dissipation channel inside for the flow of heat exchange medium, and the heat sink is thermally connected to the electronic control module.

5. The outdoor unit according to claim 4, characterized in that, The specific heat capacity of the heat-conducting liquid is greater than that of the heat exchange medium.

6. The outdoor unit according to claim 4, characterized in that, The heat pipe is thermally connected to the heat sink.

7. The outdoor unit according to claim 4, characterized in that, The cavity extends along the length of the heat sink and is located at the middle of the width of the heat sink, and at least a portion of the heat sink pipe surrounds the outer periphery of the cavity.

8. The outdoor unit according to claim 7, characterized in that, At least a portion of the heat pipe defines a U-shaped region, and the cavity is located within the U-shaped region.

9. The outdoor unit according to claim 4, characterized in that, The heat sink includes a first heat sink and a second heat sink connected vertically, with a receiving hole defined between the first heat sink and the second heat sink, and at least a portion of the heat sink pipe is received within the receiving hole.

10. The outdoor unit according to claim 9, characterized in that, A heat-conducting layer is provided between the heat dissipation pipe and the inner wall of the receiving hole.

11. The outdoor unit according to claim 9, characterized in that, A cavity is formed on the first heat sink, or a cavity is formed on the second heat sink, or the first heat sink and the second heat sink together define the cavity.

12. The outdoor unit according to claim 9, characterized in that, The first heat sink and the second heat sink are connected by fasteners, which are spaced apart from the cavity.

13. The outdoor unit according to any one of claims 1-12, characterized in that, The electrical control box component also includes a box body, in which the electrical control module and the heat sink are disposed. The box body has an airflow inlet and an airflow outlet. The airflow inlet is connected to the external space of the outdoor unit, and the airflow outlet is connected to the fan cavity.

14. The outdoor unit according to claim 13, characterized in that, The outdoor unit housing has an air inlet located on the side wall of the compressor cavity, and the air inlet connects the airflow inlet to the external space of the outdoor unit.

15. The outdoor unit according to claim 14, characterized in that, At least a portion of the airflow inlet is opposite to the air inlet in the left-right direction, and at least a portion of the airflow outlet is opposite to the airflow inlet in the left-right direction.

16. The outdoor unit according to claim 15, characterized in that, The projection of the air outlet onto the reference surface is the first projection, and the projection of the box onto the reference surface is the second projection. The reference surface is a vertical plane perpendicular to the front-back direction, and the first projection and the second projection are spaced apart along the left-right direction.

17. The outdoor unit according to claim 13, characterized in that, The electronic control module includes a circuit board and components disposed on the circuit board, wherein the angle between the circuit board and the horizontal plane is less than 10°.

18. The outdoor unit according to claim 17, characterized in that, A heat dissipation duct is defined between the lower side of the circuit board and the housing, the heat dissipation duct connects the airflow inlet and the airflow outlet, and at least some of the components are located within the heat dissipation duct.

19. The outdoor unit according to any one of claims 1-12, characterized in that, The electronic control module includes a first region and a second region. The heat generation of the first region is greater than that of the second region. The heat sink is used to dissipate heat from the first region.

20. The outdoor unit according to claim 19, characterized in that, The first region and the second region are arranged side by side in the front-back direction, with the second region located in front of the first region.

21. The outdoor unit according to claim 20, characterized in that, The electrical control box component also includes a box body, in which the electrical control module and the heat sink are disposed. The box body has an airflow inlet and an airflow outlet. The airflow inlet communicates with the external space of the outdoor unit, and the airflow outlet communicates with the fan cavity. In the left-right direction, at least a portion of the airflow inlet is opposite to the second region, and at least a portion of the airflow outlet is opposite to the second region.

22. The outdoor unit according to claim 21, characterized in that, The outdoor unit housing has an air inlet located on the side wall of the compressor cavity. The air inlet connects the airflow inlet with the external space of the outdoor unit. In the left-right direction, the air inlet is opposite to the second area.

23. An air conditioning device, characterized in that, include: The outdoor unit according to any one of claims 1-22.

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