Outdoor unit of air conditioner

Abstract

The utility model discloses an outdoor unit of an air conditioner. The outdoor unit of the air conditioner comprises a machine shell, the partition plate divides the internal space of the machine shell into a compressor cavity and a fan cavity; a compressor; an outdoor heat exchanger; a fan; an electrical box; the air conditioner outdoor unit further comprises a cooling heat exchanger, the cooling heat exchanger is connected with the second end of the outdoor heat exchanger, the cooling heat exchanger is arranged in the compressor cavity and located below the electric appliance box, air entering the compressor cavity from the air inlet exchanges heat with the cooling heat exchanger and then enters the electric appliance box through the heat dissipation air inlet, and therefore heat dissipation can be conducted on the electric appliance box. Therefore, the temperature of air at the electric appliance box can be reduced, the working temperature of the electric appliance box can be adjusted, the heat dissipation effect of the electric appliance box can be improved, the service life of circuit components in the electric appliance box can be prolonged, and the operation reliability of the outdoor unit of the air conditioner can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioning, in particular to an outdoor unit of an air conditioner. Background Art

[0002] As the integration of circuit components becomes higher and higher, the heat generation and heat flux density also increase accordingly. For the air-conditioning outdoor unit electronic control, poor heat dissipation can easily lead to excessive temperature rise of electrical components, resulting in poor working stability of the control board and inverter.

[0003] In the prior art, the electric control heat dissipation solutions mainly include negative pressure air cooling and refrigerant cooling. Among them, negative pressure air cooling sets vents and heat exchangers under the electric control board, and uses the negative pressure generated when the cooling fan of the air conditioner outdoor unit is running to drive heat dissipation.

[0004] However, the heat dissipation effect is limited. Refrigerant heat dissipation is achieved through pipeline design, which introduces the refrigerant with a lower temperature after condensation into the electronic control board. However, there are higher requirements for the design of the refrigeration system pipelines. In addition, the heat dissipation effect is not stable enough when the outdoor ambient temperature is high. There are also solutions to control the heat dissipation of the electronic control through semiconductor refrigerators and to add active cooling fans. These heat dissipation solutions introduce additional power supply loads, put forward higher requirements for the air conditioner electronic control, and are more expensive. Utility Model Content

[0005] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes an air conditioner outdoor unit, which can reduce the temperature of the air at the electrical box, thereby adjusting the working temperature of the electrical box, improving the heat dissipation effect of the electrical box, and extending the service life of the circuit components in the electrical box, thereby improving the reliability of the operation of the air conditioner outdoor unit.

[0006] The outdoor unit of the air conditioner according to the first embodiment of the utility model comprises: a casing; a partition, the partition is arranged in the casing, the partition divides the internal space of the casing into a compressor chamber and a fan chamber; a compressor, the compressor is arranged in the compressor chamber; an outdoor heat exchanger, the outdoor heat exchanger is arranged in the fan chamber, and a first end of the outdoor heat exchanger is connected to the compressor; a fan, the fan is arranged in the fan chamber to discharge the wind after heat exchange with the outdoor heat exchanger to the external environment; an electrical box, the electrical box is arranged in the compressor The housing is provided with an air inlet, which is communicated with the compressor cavity so that wind in the external environment enters the compressor cavity through the air inlet; the electrical box is provided with a heat dissipation air inlet, which is communicated with the compressor cavity so that wind in the compressor cavity enters the electrical box through the heat dissipation air inlet; the electrical box is also provided with a heat dissipation air outlet, which is communicated with the fan cavity so that wind after heat exchange in the electrical box enters the fan cavity through the heat dissipation air outlet;

[0007] Among them, the air conditioner outdoor unit also includes: a cooling heat exchanger, which is connected to the second end of the outdoor heat exchanger, and the cooling heat exchanger is arranged in the compressor cavity and located below the electrical box. The wind entering the compressor cavity from the air inlet exchanges heat with the cooling heat exchanger and then enters the electrical box through the heat dissipation air inlet to dissipate heat from the electrical box.

[0008] Therefore, the setting of the cooling heat exchanger in the outdoor unit of the air conditioner can reduce the temperature of the air at the electrical box, thereby adjusting the operating temperature of the electrical box, improving the heat dissipation effect of the electrical box, and extending the service life of the circuit components in the electrical box, thereby improving the reliability of the operation of the outdoor unit of the air conditioner.

[0009] According to some embodiments of the utility model, the cooling heat exchanger is arranged on the rear wall of the casing, and the cooling heat exchanger is arranged opposite to the air inlet so that the wind at the air inlet enters the compressor cavity after heat exchange with the cooling heat exchanger.

[0010] According to some embodiments of the present invention, the area of ​​the air inlet is S1, the area of ​​the surface of the cooling heat exchanger facing the air inlet is S2, and S1 and S2 satisfy the relationship: 0.75S2≤S1≤S2.

[0011] According to some embodiments of the present invention, the casing includes: an upper shell portion; a middle shell portion; and a lower shell portion, wherein the upper shell portion, the middle shell portion and the lower shell portion are sequentially distributed from top to bottom and have the same height, and at least part of the air inlet is located in the middle shell portion.

[0012] According to some embodiments of the utility model, the casing includes: a panel; a side panel, the side panel is connected to the panel; a back panel, the back panel is arranged opposite to the panel, the back panel and the side panel are arranged integrally, and the back panel is provided with the air inlet.

[0013] According to some embodiments of the utility model, the air conditioner outdoor unit further includes: a mounting plate, the outdoor heat exchanger is provided with an end plate, and the mounting plate is connected between the end plate and the cooling heat exchanger to mount the cooling heat exchanger on the outdoor heat exchanger.

[0014] According to some embodiments of the utility model, the mounting plate includes: a first plate body, the first plate body is connected to the end plate; a second plate body, the second plate body is connected to the cooling heat exchanger, the second plate body is parallel to the first plate body, and the second plate body and the cooling heat exchanger are attached to the rear wall of the casing; a third plate body, the third plate body is connected between the first plate body and the second plate body, and the third plate body is perpendicular to the first plate body and the second plate body respectively.

[0015] According to some embodiments of the utility model, the air conditioner outdoor unit also includes: a first pipeline, the first pipeline is connected between the second end of the outdoor heat exchanger and the first end of the cooling heat exchanger, the first pipeline is provided with a throttling element; a stop valve, the stop valve is arranged in the casing; a second pipeline, the second pipeline is connected between the second end of the cooling heat exchanger and the stop valve, so that the refrigerant flows to the stop valve.

[0016] According to some embodiments of the present invention, the first end of the cooling heat exchanger is higher than the second end of the cooling heat exchanger, and the first end and the second end of the cooling heat exchanger are both arranged away from the partition.

[0017] The air conditioner outdoor unit according to the second embodiment of the utility model comprises: a casing; a partition, the partition is arranged in the casing, the partition divides the internal space of the casing into a compressor chamber and a fan chamber; a compressor, the compressor is arranged in the compressor chamber; an outdoor heat exchanger, the outdoor heat exchanger is arranged in the fan chamber, and a first end of the outdoor heat exchanger is connected to the compressor; a fan, the fan is arranged in the fan chamber to discharge the wind after heat exchange with the outdoor heat exchanger to the external environment; an electrical box, the electrical box is arranged in the compressor chamber The housing is provided with an air inlet, which is communicated with the compressor cavity so that wind in the external environment enters the compressor cavity through the air inlet; the electrical box is provided with a heat dissipation air inlet, which is communicated with the compressor cavity so that wind in the compressor cavity enters the electrical box through the heat dissipation air inlet; the electrical box is also provided with a heat dissipation air outlet, which is communicated with the fan cavity so that wind after heat exchange in the electrical box enters the fan cavity through the heat dissipation air outlet;

[0018] Wherein, the air conditioner outdoor unit further includes: a cooling heat exchanger, the cooling heat exchanger is connected to the second end of the outdoor heat exchanger, and the cooling heat exchanger is arranged in the compressor cavity.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0021] Figure 1 It is a structural schematic diagram of an air conditioner outdoor unit according to an embodiment of the utility model;

[0022] Figure 2 It is a schematic diagram of the structure of a cooling heat exchanger included in a side plate of an outdoor unit of an air conditioner according to an embodiment of the utility model;

[0023] Figure 3 It is a structural schematic diagram of an air conditioner outdoor unit including a partition according to an embodiment of the utility model;

[0024] Figure 4 is an exploded view of an outdoor unit of an air conditioner according to an embodiment of the utility model;

[0025] Figure 5 It is a structural schematic diagram of an air conditioner outdoor unit including an air inlet according to an embodiment of the utility model;

[0026] Figure 6 It is a structural schematic diagram of the connection between the cooling heat exchanger and the outdoor heat exchanger according to an embodiment of the utility model;

[0027] Figure 7 yes Figure 6 Enlarged view of area A in the middle;

[0028] Figure 8 It is a structural schematic diagram of a mounting plate according to an embodiment of the utility model;

[0029] Fig. 9 It is a structural schematic diagram of an air conditioner outdoor unit including a first pipeline and a second pipeline according to an embodiment of the utility model;

[0030] Fig.10 yes Fig. 9 Enlarged view of middle area B;

[0031] Fig.11 It is a principle diagram of an outdoor unit system of an air conditioner according to an embodiment of the utility model.

[0032] Reference numerals:

[0033] 100. Outdoor unit of air conditioner;

[0034] 10. Casing; 11. Air inlet; 12. Panel; 13. Side panel; 14. Back panel;

[0035] 20. Partition; 21. Compressor cavity; 22. Fan cavity;

[0036] 30. Compressor;

[0037] 40. Outdoor heat exchanger; 41. End plate;

[0038] 50. Fan;

[0039] 60. Electrical box; 61. Heat dissipation air inlet; 62. Heat dissipation air outlet;

[0040] 70. Cooling heat exchanger;

[0041] 80. mounting plate; 81. first plate body; 82. second plate body; 83. third plate body;

[0042] 91. first pipeline; 911. throttling element;

[0043] 92. Stop valve; 93. Second pipeline; 94. First end of cooling heat exchanger; 95. Second end of cooling heat exchanger. DETAILED DESCRIPTION

[0044] The embodiments of the present utility model are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present utility model are described in detail below.

[0045] Reference below Figure 1-Figure 11 An air conditioner outdoor unit 100 according to an embodiment of the present invention is described.

[0046] Reference Figure 1-Figure 4 As shown, the air conditioner outdoor unit 100 of the first embodiment of the utility model includes: a casing 10, a partition 20, a compressor 30, an outdoor heat exchanger 40, a fan 50 and an electrical box 60.

[0047] The partition 20 is disposed in the housing 10, and the partition 20 divides the internal space of the housing 10 into a compressor chamber 21 and a fan chamber 22. The partition 20 can reduce the noise of the compressor 30 from being transmitted to the external environment, thereby making the air conditioner outdoor unit 100 quieter during operation. Moreover, by dividing the internal space of the housing 10 into the compressor chamber 21 and the fan chamber 22 through the partition 20, the compressor 30 and the fan 50 can be prevented from generating heat interference with each other, and their respective working efficiencies can be ensured, thereby improving the overall performance of the air conditioner outdoor unit 100.

[0048] The compressor 30 is disposed in the compressor chamber 21, and the outdoor heat exchanger 40 is disposed in the fan chamber 22. The first end of the outdoor heat exchanger 40 is connected to the compressor 30. The compressor 30 and the outdoor heat exchanger 40 perform heat exchange through the refrigerant. The compressor 30 compresses and heats the refrigerant, and then dissipates heat and cools it through the outdoor heat exchanger 40, thereby completing the heat exchange process in the refrigeration cycle.

[0049] The fan 50 is arranged in the fan cavity 22. The fan 50 can discharge the air after heat exchange by the outdoor heat exchanger 40 to the external environment. The electrical box 60 is arranged in the compressor cavity 21. The compression cavity can provide an independent installation space for the compressor 30, which can protect the compressor 30 and prevent external factors such as dust, sand and rain from damaging the compressor 30.

[0050] The electrical box 60 is located above the compressor 30, which can better protect the electrical box 60 from the influence of the external environment, such as rain, dust, etc. This can improve the reliability and durability of the electrical box 60 and reduce the risk of failure caused by external environmental factors.

[0051] The housing 10 is provided with an air inlet 11, which is connected to the compressor cavity 21, so that the wind in the external environment can enter the compressor cavity 21 through the air inlet 11. The electrical box 60 is provided with a heat dissipation air inlet 61, which is connected to the compressor cavity 21, so that the wind in the compressor cavity 21 can enter the electrical box 60 through the heat dissipation air inlet 61. The electrical box 60 is also provided with a heat dissipation air outlet 62, which is connected to the fan cavity 22, so that the wind after heat exchange in the electrical box 60 can enter the fan cavity 22 through the heat dissipation air outlet 62.

[0052] Specifically, wind in the external environment enters the compressor cavity 21 through the air inlet 11, and can dissipate heat for the compressor 30 and the electrical box 60 in the compressor cavity 21, thereby reducing the temperature of the surrounding environment.

[0053] Furthermore, the electrical box 60 is provided with a heat dissipation air inlet 61, which is connected to the compressor chamber 21, so that the wind in the compression chamber can enter the electrical box 60 through the heat dissipation air inlet 61, thereby dissipating the heat of the control circuit board in the electrical box 60.

[0054] The electrical box 60 is also provided with a heat dissipation outlet 62, which is connected to the fan chamber 22, so that the wind after heat exchange in the electrical box 60 can enter the fan chamber 22 through the heat dissipation outlet 62. The high-speed rotation of the fan 50 in the fan chamber 22 can quickly discharge the air in the fan chamber 22, which can easily generate negative pressure in the fan chamber 22.

[0055] Since the heat dissipation air inlet 61 is connected to the compressor chamber 21, and the fan chamber 22 is connected to the heat dissipation air outlet 62, the fan chamber 22 can be connected to the compressor chamber 21, so that the air in the compressor chamber 21 can be quickly discharged, which can facilitate the formation of negative pressure in the compressor chamber 21, thereby accelerating the air intake speed of the air inlet 11.

[0056] Among them, the air conditioner outdoor unit 100 may include: a cooling heat exchanger 70, which is connected to the second end of the outdoor heat exchanger 40, and can play a role in transferring refrigerant, and can send the refrigerant from the outdoor heat exchanger 40 to the indoor heat exchanger, thereby realizing the refrigeration cycle in the air-conditioning system.

[0057] The cooling heat exchanger 70 is arranged in the compressor cavity 21, and the cooling heat exchanger 70 is located below the electrical box 60. The cooling heat exchanger 70 can control the temperature rise of the electrical box 60, thereby adjusting the working temperature of the electrical box 60 to keep it at a normal working temperature.

[0058] In addition, the air entering the compressor chamber 21 from the air inlet 11 exchanges heat with the cooling heat exchanger 70 and then enters the electrical box 60 through the heat dissipation air inlet 61, thereby dissipating heat for the electrical box 60.

[0059] Specifically, the outside wind enters the compressor chamber 21 from the air inlet 11, and can dissipate the heat of the electrical box 60 in the compressor chamber 21 for the first time. Moreover, the wind in the compressor chamber 21 exchanges heat with the cooling heat exchanger 70, and the wind after the heat exchange of the cooling heat exchanger 70 is cold wind, which enters the electrical box 60 through the heat dissipation air inlet 61, so as to further dissipate the heat and cool down the components in the electrical box 60.

[0060] Furthermore, under refrigeration conditions, the incoming air mainly enters from the air inlet 11, which can increase the efficiency of the entry of cooling air. The cooled air flows through the heat dissipation position of the electrical box 60 through the negative pressure air cooling heat dissipation channel, which can effectively control the temperature rise of the electrical box 60, especially under high temperature conditions, it has a significant cooling effect.

[0061] Therefore, the setting of the cooling heat exchanger 70 in the air conditioner outdoor unit 100 can reduce the temperature of the air at the electrical box 60, thereby adjusting the operating temperature of the electrical box 60, improving the heat dissipation effect of the electrical box 60, and extending the service life of the circuit components in the electrical box 60, thereby improving the reliability of the operation of the air conditioner outdoor unit 100.

[0062] According to some embodiments of the present invention, Figure 1 and Figure 2 As shown, the cooling heat exchanger 70 is arranged on the rear wall of the casing 10. By rationally utilizing the space inside the air conditioner outdoor unit 100, a mounting position can be provided for the cooling heat exchanger 70, making the internal structure of the air conditioner outdoor unit 100 more compact.

[0063] The cooling heat exchanger 70 is arranged opposite to the air inlet 11, which can effectively utilize air convection and enhance the heat dissipation effect. When air enters from the air inlet 11, it takes away part of the heat after passing through the cooling heat exchanger 70, thereby improving the heat dissipation effect of the cooling heat exchanger 70, and also allowing the air at the air inlet 11 to enter the compressor chamber 21 after heat exchange with the cooling heat exchanger 70.

[0064] According to some embodiments of the present invention, Figure 2 and Figure 4 As shown, the area of ​​the air inlet 11 is S1, the area of ​​the surface of the cooling heat exchanger 70 facing the air inlet 11 is S2, and S1 and S2 satisfy the relationship: 0.75S2≤S1≤S2.

[0065] The area S1 of the air inlet 11 is not less than the first parameter value. If the area S1 of the air inlet 11 is too small compared to the area S2 of the surface of the cooling heat exchanger 70 facing the air inlet 11, it will affect the air intake volume and the heat exchange efficiency of the cooling heat exchanger 70. Therefore, the area S1 of the air inlet 11 is set to be not less than the first parameter value.

[0066] The first parameter value can be 0.65S2 to 0.75S2. Preferably, the first parameter value can be 0.75S2. When the area S1 of the air inlet 11 is 0.75 times the area S2 of the surface of the cooling heat exchanger 70 facing the air inlet 11, the air intake of the air inlet 11 just meets the heat exchange of the cooling heat exchanger 70.

[0067] The area S1 of the air inlet 11 ranges from 0.75S2 to 0.85S2. Preferably, when the area S1 of the air inlet 11 is 0.75S2, the air intake volume is large, the heat exchange effect of the cooling heat exchanger 70 is more obvious, and more cold air is generated at the electrical box 60, thereby lowering the temperature at the electrical box 60.

[0068] In addition, the area S1 of the air inlet 11 is not greater than the second parameter value. If the area S1 of the air inlet 11 is greater than the area S2 of the surface of the cooling heat exchanger 70 facing the air inlet 11, the wind at the air inlet 11 will diffuse, and less wind will reach the cooling heat exchanger 70, affecting the heat exchange efficiency of the cooling heat exchanger 70. Therefore, the area S1 of the air inlet 11 cannot be greater than the area S2 of the surface of the cooling heat exchanger 70 facing the air inlet 11.

[0069] The second parameter value may be S2 to 1.5S2. Preferably, the second parameter value may be S2. When the area S1 of the air inlet 11 is equal to the area S2 of the surface of the cooling heat exchanger 70 facing the air inlet 11, the diffusion of wind at the air inlet 11 can be avoided.

[0070] The area S1 of the air inlet 11 ranges from 0.85S2 to S2. Preferably, the area S1 of the air inlet 11 can be S2. This not only makes the air intake at the air inlet 11 larger and the air intake effect significant, but also avoids the diffusion of wind at the air inlet 11, and allows more wind from the air inlet 11 to reach the cooling heat exchanger 70, thereby making the cooling heat exchanger 70 have a better heat exchange effect.

[0071] According to some embodiments of the present invention, Figure 4 and Figure 5 As shown, the housing 10 includes an upper housing portion, which is located at the top of the housing 10 , a middle housing portion, which is located in the middle of the housing 10 , and a lower housing portion, which is located at the bottom of the housing 10 .

[0072] The upper shell portion, the middle shell portion and the lower shell portion are arranged sequentially from top to bottom, and the upper shell portion, the middle shell portion and the lower shell portion have the same height, and at least part of the air inlet 11 is located in the middle shell portion, that is, at least part of the air inlet 11 overlaps with the middle shell portion, so that dust and debris on the ground can be prevented from being sucked in, and pollution and damage to the internal components of the air conditioner outdoor unit 100 can be reduced.

[0073] Moreover, the air inlet 11 is located in the middle of the height direction of the casing 10, which can better inhale the surrounding fresh air, improve the ventilation effect of the air conditioner outdoor unit 100, and is also beneficial to the heat dissipation and cooling of the air conditioner outdoor unit 100.

[0074] According to some embodiments of the present invention, Figure 2 and Figure 5As shown, the casing 10 includes: a panel 12, which is located on the front side of the air conditioner outdoor unit 100, the casing 10 may include: side panels 13, which are connected to the panel 12, and the side panels 13 are respectively located on both sides of the panel 12, and the casing 10 may include: a back panel 14, which is arranged opposite to the panel 12, and the back panel 14 and the side panels 13 are arranged integrally, which can increase the stability and firmness of the overall structure of the air conditioner outdoor unit 100, reduce the connection points between components, and reduce the risk of loosening or breaking.

[0075] In addition, the back plate 14 is provided with an air inlet 11 , which can facilitate the supply of air to the cooling heat exchanger 70 , thereby improving the heat exchange efficiency of the cooling heat exchanger 70 .

[0076] According to some embodiments of the present invention, Figure 7 As shown, the air conditioner outdoor unit 100 may include: a mounting plate 80 , the outdoor heat exchanger 40 is provided with an end plate 41 , the mounting plate 80 is connected between the end plate 41 and the cooling heat exchanger 70 , so that the cooling heat exchanger 70 can be mounted on the outdoor heat exchanger 40 .

[0077] Among them, the setting of the end plate 41 can facilitate the connection between the outdoor heat exchanger 40 and the mounting plate 80. The mounting plate 80 can provide support for the installation of the cooling heat exchanger 70, thereby making the connection between the cooling heat exchanger 70 and the outdoor heat exchanger 40 more stable and firm.

[0078] Furthermore, a portion of the end plate 41 is extended to determine the height limit of the cooling heat exchanger 70. The cooling heat exchanger 70 is fixed to the side plate 13 using right-angle end plates 41 on both sides, so that the outer surface of the heat exchanger can fit tightly against the surface of the side plate 13, avoiding gaps between the cooling heat exchanger 70 and the grooves of the side plate 13, thereby affecting the heat dissipation effect.

[0079] In addition, a water collecting pan and a guide groove are simultaneously added to the end plate 41 of the fixed cooling heat exchanger 70. The condensed water flows through the water collecting pan to the guide groove, and then is introduced into the base of the casing 10 through the guide groove for centralized discharge. This can prevent the random flow of condensed water from causing damage and interference to sensors and electrical components, and can also improve the reliability of the operation of the air conditioner outdoor unit 100.

[0080] According to some embodiments of the present invention, the mounting plate 80 includes: a first plate body 81, which is connected to the end plate 41, and the contact area between the first plate body 81 and the end plate 41 can be increased, thereby increasing the connection strength between the first plate body 81 and the end plate 41.

[0081] The mounting plate 80 may include: a second plate body 82 , which is connected to the cooling heat exchanger 70 , and can increase the contact area with the cooling heat exchanger 70 , thereby increasing the connection strength between the second plate body 82 and the cooling heat exchanger 70 .

[0082] The second plate 82 is parallel to the first plate 81 , and the second plate 82 and the cooling heat exchanger 70 are attached to the rear wall of the housing 10 , thereby further improving the heat exchange effect of the cooling heat exchanger 70 .

[0083] The mounting plate 80 may include: a third plate body 83 , the third plate body 83 is connected between the first plate body 81 and the second plate body 82 , and the third plate body 83 is perpendicular to the first plate body 81 and the second plate body 82 , respectively, so as to facilitate the fixed connection between the first plate body 81 and the second plate body 82 .

[0084] According to some embodiments of the present invention, Fig.10 As shown, the air conditioner outdoor unit 100 may include: a first pipeline 91, the first pipeline 91 is connected between the second end of the outdoor heat exchanger 40 and the first end 94 of the cooling heat exchanger, and the first pipeline 91 is provided with a throttling element 911.

[0085] The first pipe 91 is connected between the second end of the outdoor heat exchanger 40 and the first end 94 of the cooling heat exchanger to achieve more precise temperature control in the air-conditioning system, so that heat can be regulated and utilized more effectively, which is beneficial to improving the performance and efficiency of the system.

[0086] Also, if Fig.11 As shown, the first pipeline 91 is provided with a throttling element 911, which can effectively control the flow rate and flow rate of the fluid, and can also be beneficial to optimizing the working state of the system and ensuring the stable flow of the fluid in the pipeline.

[0087] Under refrigeration conditions, part of the refrigerant after throttling is cooled by negative pressure heat dissipation through the cooling heat exchanger 70. Under refrigeration conditions, the low-temperature refrigerant after one throttling flows through the cooling heat exchanger 70, thereby reducing the inlet air temperature of the electrical box 60.

[0088] The air conditioner outdoor unit 100 may include a stop valve 92, which is disposed on the housing 10, wherein the stop valve 92 may adjust or completely shut off the flow of refrigerant in the air conditioning system, which is essential for maintaining the cooling effect and operating efficiency of the system. By adjusting the stop valve 92, the flow rate of the refrigerant and the pressure in the air conditioning system may be controlled, thereby ensuring that the air conditioning system operates under safe and effective working conditions.

[0089] The air conditioner outdoor unit 100 may include: a second pipeline 93 , which is connected between the second end 95 of the cooling heat exchanger and the stop valve 92 , so that the refrigerant can flow to the stop valve 92 .

[0090] Among them, the pipeline position of the cooling heat exchanger 70 is between the outlet of the refrigeration circuit throttle valve (or electronic expansion valve) and the stop valve 92. The refrigerant temperature at the outlet of the refrigeration circuit throttle valve is significantly reduced after throttling. The outside air can be effectively cooled after passing through the cooling heat exchanger 70 and enter the compressor chamber 21. As the main cold source of negative pressure air cooling, the reduction in its temperature can significantly improve the heat dissipation effect of the electrical box 60.

[0091] According to some embodiments of the present invention, Figure 7 and Fig.11 As shown, the first end 94 of the cooling heat exchanger 70 is higher than the second end 95 of the cooling heat exchanger 70, so the second end 95 of the cooling heat exchanger 70 is the low end, and the first end 94 of the cooling heat exchanger 70 is the high end. The low-temperature and low-pressure refrigerant throttled by the throttling element 911 enters the cooling heat exchanger 70 from the second end 95 of the cooling heat exchanger 70, flows out from the first end 94 of the cooling heat exchanger 70 after the heat exchange in the cooling heat exchanger 70 is completed, and then enters the indoor heat exchanger. The refrigerant entering the indoor heat exchanger circulates again through the compressor 30 and the outdoor heat exchanger 40, so as to cool the compressor cavity 22 and improve the refrigeration efficiency of the cooling heat exchanger 70.

[0092] In addition, the first end 94 of the cooling heat exchanger 70 and the second end 95 of the cooling heat exchanger 70 are both arranged away from the partition 20. This can avoid interference between the first end 94 of the cooling heat exchanger 70 and the second end 95 of the cooling heat exchanger 70 and the partition 20, and can also reduce the distance between the first end 94 of the cooling heat exchanger 70 and the second end 95 of the cooling heat exchanger 70 and the compressor 30, thereby reducing the heat exchange time and improving the heat exchange efficiency of the cooling heat exchanger 70.

[0093] According to the second embodiment of the present invention, the air conditioner outdoor unit 100 includes: a casing 10, a partition 20, a compressor 30, an outdoor heat exchanger 40, a fan 50 and an electrical box 60.

[0094] The partition 20 is arranged in the casing 10, and the partition 20 divides the internal space of the casing 10 into a compressor chamber 21 and a fan chamber 22. The compressor 30 is arranged in the compressor chamber 21, and the outdoor heat exchanger 40 is arranged in the fan chamber 22. The first end of the outdoor heat exchanger 40 is connected to the compressor 30, and the fan 50 is arranged in the fan chamber 22, so that the wind after heat exchange with the outdoor heat exchanger 40 can be discharged to the external environment.

[0095] Specifically, the partition 20 is disposed in the housing 10, and the partition 20 divides the internal space of the housing 10 into a compressor chamber 21 and a fan chamber 22. The partition 20 can reduce the noise of the compressor 30 from being transmitted to the external environment, thereby making the air conditioner outdoor unit 100 quieter during operation. Moreover, by dividing the internal space of the housing 10 into the compressor chamber 21 and the fan chamber 22 through the partition 20, the compressor 30 and the fan 50 can be prevented from generating heat interference with each other, and their respective working efficiencies can be ensured, thereby improving the overall performance of the air conditioner outdoor unit 100.

[0096] The compressor 30 is disposed in the compressor chamber 21, and the outdoor heat exchanger 40 is disposed in the fan chamber 22. The first end of the outdoor heat exchanger 40 is connected to the compressor 30. The compressor 30 and the outdoor heat exchanger 40 perform heat exchange through the refrigerant. The compressor 30 compresses and heats the refrigerant, and then dissipates heat and cools it through the outdoor heat exchanger 40, thereby completing the heat exchange process in the refrigeration cycle.

[0097] The fan 50 is arranged in the fan cavity 22. The fan 50 can discharge the air after heat exchange by the outdoor heat exchanger 40 to the external environment. The electrical box 60 is arranged in the compressor cavity 21. The compression cavity can provide an independent installation space for the compressor 30, which can protect the compressor 30 and prevent external factors such as dust, sand and rain from damaging the compressor 30.

[0098] The electrical box 60 is disposed in the compressor cavity 21 and above the compressor 30, which can better protect the electrical box 60 from the influence of the external environment, such as rain, dust, etc. This can improve the reliability and durability of the electrical box 60 and reduce the risk of failure caused by external environmental factors.

[0099] The housing 10 is provided with an air inlet 11 , which is in communication with the compressor chamber 21 , so that wind in the external environment can enter the compressor chamber 21 through the air inlet 11 .

[0100] Specifically, wind in the external environment enters the compressor cavity 21 through the air inlet 11, and can dissipate heat for the compressor 30 and the electrical box 60 in the compressor cavity 21, thereby reducing the temperature of the surrounding environment.

[0101] The electrical box 60 is provided with a heat dissipation air inlet 61, which is connected to the compressor cavity 21, so that the wind in the compressor cavity 21 can enter the electrical box 60 through the heat dissipation air inlet 61. The electrical box 60 is also provided with a heat dissipation air outlet 62, which is connected to the fan cavity 22, so that the wind after heat exchange in the electrical box 60 can enter the fan cavity 22 through the heat dissipation air outlet 62.

[0102] Among them, the air conditioner outdoor unit 100 may include: a cooling heat exchanger 70, which is connected to the second end of the outdoor heat exchanger 40, and can play a role in transferring refrigerant, and can send the refrigerant from the outdoor heat exchanger 40 to the indoor heat exchanger, thereby realizing the refrigeration cycle in the air-conditioning system.

[0103] The cooling heat exchanger 70 is disposed in the compressor cavity 21. The cooling heat exchanger 70 can control the temperature rise of the electrical box 60, thereby adjusting the working temperature of the electrical box 60 to keep it at a normal working temperature.

[0104] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0105] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and purpose of the utility model, and the scope of the utility model is defined by the claims and their equivalents.

Claims

1. An air conditioner outdoor unit, comprising: chassis; A partition, the partition is arranged in the casing, and the partition divides the internal space of the casing into a compressor chamber and a fan chamber; a compressor, the compressor being disposed in the compressor chamber; An outdoor heat exchanger, the outdoor heat exchanger is arranged in the fan cavity, and a first end of the outdoor heat exchanger is connected to the compressor; A fan, the fan being arranged in the fan cavity to discharge the wind after heat exchange with the outdoor heat exchanger to the external environment; An electrical box, the electrical box being disposed in the compressor cavity and located above the compressor; It is characterized in that The housing is provided with an air inlet, and the air inlet is communicated with the compressor cavity so that wind in the external environment enters the compressor cavity through the air inlet; The electrical box is provided with a heat dissipation air inlet, which is communicated with the compressor cavity so that the wind in the compressor cavity enters the electrical box through the heat dissipation air inlet. The electrical box is also provided with a heat dissipation air outlet, which is communicated with the fan cavity so that the wind after heat exchange in the electrical box enters the fan cavity through the heat dissipation air outlet. in, The air conditioner outdoor unit also includes: A cooling heat exchanger is connected to the second end of the outdoor heat exchanger. The cooling heat exchanger is arranged in the compressor cavity and is located below the electrical box. The wind entering the compressor cavity from the air inlet exchanges heat with the cooling heat exchanger and then enters the electrical box through the heat dissipation air inlet to dissipate heat from the electrical box.

2. The air conditioner outdoor unit according to claim 1, characterized in that: The cooling heat exchanger is arranged on the rear wall of the casing, and the cooling heat exchanger is arranged opposite to the air inlet, so that the wind at the air inlet enters the compressor chamber after heat exchange with the cooling heat exchanger.

3. The air conditioner outdoor unit according to claim 2, characterized in that: The area of ​​the air inlet is S1, the area of ​​the surface of the cooling heat exchanger facing the air inlet is S2, and S1 and S2 satisfy the relationship: 0.75S2≤S1≤S2.

4. The air conditioner outdoor unit according to claim 1, characterized in that: The housing comprises: Upper shell; Middle shell part; The lower shell portion, the upper shell portion, the middle shell portion and the lower shell portion are sequentially distributed from top to bottom and have the same height, and at least part of the air inlet is located in the middle shell portion.

5. The air conditioner outdoor unit according to claim 1, characterized in that: The housing comprises: panel; a side panel connected to the panel; A back plate, the back plate is arranged opposite to the panel, the back plate is arranged integrally with the side plate, and the back plate is provided with the air inlet.

6. The air conditioner outdoor unit according to claim 1, characterized in that: Also includes: The outdoor heat exchanger is provided with an end plate, and the mounting plate is connected between the end plate and the cooling heat exchanger to mount the cooling heat exchanger on the outdoor heat exchanger.

7. The air conditioner outdoor unit according to claim 6, characterized in that: The mounting plate comprises: A first plate body, wherein the first plate body is connected to the end plate; a second plate body, the second plate body being connected to the cooling heat exchanger, the second plate body being parallel to the first plate body, and the second plate body and the cooling heat exchanger being attached to the rear wall of the housing; A third plate body is connected between the first plate body and the second plate body, and the third plate body is perpendicular to the first plate body and the second plate body respectively.

8. The air conditioner outdoor unit according to claim 1, characterized in that: Also includes: a first pipeline, the first pipeline being connected between the second end of the outdoor heat exchanger and the first end of the cooling heat exchanger, the first pipeline being provided with a throttling element; A stop valve, the stop valve being arranged on the casing; A second pipeline is connected between the second end of the cooling heat exchanger and the stop valve so that the refrigerant flows to the stop valve.

9. The air conditioner outdoor unit according to claim 8, characterized in that: The first end of the cooling heat exchanger is higher than the second end of the cooling heat exchanger, and the first end and the second end of the cooling heat exchanger are both arranged away from the partition.

10. An air conditioner outdoor unit, comprising: chassis; A partition, the partition is arranged in the casing, and the partition divides the internal space of the casing into a compressor chamber and a fan chamber; a compressor, the compressor being disposed in the compressor chamber; An outdoor heat exchanger, the outdoor heat exchanger is arranged in the fan cavity, and a first end of the outdoor heat exchanger is connected to the compressor; A fan, the fan being arranged in the fan cavity to discharge the wind after heat exchange with the outdoor heat exchanger to the external environment; An electrical box, the electrical box being disposed in the compressor cavity and located above the compressor; It is characterized in that The housing is provided with an air inlet, and the air inlet is communicated with the compressor cavity so that wind in the external environment enters the compressor cavity through the air inlet; The electrical box is provided with a heat dissipation air inlet, which is communicated with the compressor cavity so that the wind in the compressor cavity enters the electrical box through the heat dissipation air inlet. The electrical box is also provided with a heat dissipation air outlet, which is communicated with the fan cavity so that the wind after heat exchange in the electrical box enters the fan cavity through the heat dissipation air outlet. in, The air conditioner outdoor unit also includes: A cooling heat exchanger is connected to the second end of the outdoor heat exchanger and is disposed in the compressor cavity.

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