Air conditioner outdoor unit

Abstract

The utility model discloses an air conditioner outdoor unit, and belongs to the technical field of air conditioners. The air conditioner outdoor unit comprises an electric control box assembly, and the electric control box assembly comprises a box body; the box cover is connected to the top of the box body; the electric control board is connected to the box cover; the element support is arranged on the side face, facing the bottom plate of the box body, of the electric control board, and a plurality of installation positions are arranged on the element support; the power module is mounted at the mounting position and is connected with the electric control board; the refrigerant heat dissipation module is arranged on the element bracket; the water retaining rib is located on the side, away from the first edge, of the refrigerant heat dissipation module. One end of the water retaining rib is connected with the element support, the other end of the water retaining rib extends towards the direction of the bottom plate, and the water retaining rib protrudes towards the direction of the bottom plate relative to the connecting end face, connected with the refrigerant heat dissipation module, of the element support so that condensation water generated by the refrigerant heat dissipation module can be blocked, and the condensation water is prevented from flowing to electrified parts on the periphery of the electric control board. Therefore, the condensation problem of the refrigerant heat dissipation module is effectively solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to air conditioning technical field especially relates to an air conditioner outdoor unit. BACKGROUND

[0002] The air conditioner can adjust the temperature of indoor air, so that the temperature in the room is suitable. The electric control box assembly of the air conditioner outdoor unit usually includes an electric control box formed by connecting a box cover and a box body, and an electric control board and a power module arranged in the electric control box. During continuous operation of the power module, the operating temperature will continuously rise, and if it exceeds a certain limit, the operation of the power module will be unstable.

[0003] In related technologies, in order to improve the heat dissipation effect of the electric control box, a refrigerant heat dissipation module is arranged in the electric control box, and the refrigerant heat dissipation module is used to dissipate heat from the power module by using the cold energy of the refrigerant, so that the temperature of the power module is reduced, and the electric control box assembly can be kept in a normal working state. When the heat dissipation device is arranged, the fixing effect of the heat dissipation device is poor, and the heat dissipation device is easy to shake, which is not conducive to improving the heat dissipation efficiency.

[0004] In the case of refrigeration in a high-temperature environment, the air conditioner outdoor unit is exposed to the outdoor high-temperature environment. During operation, the air conditioner outdoor unit releases heat by heat exchange with the outside air through the outdoor heat exchanger. However, at a relatively high ambient temperature, if the temperature of the refrigerant in the refrigerant heat dissipation module is low, the temperature of the refrigerant heat dissipation module will be low. When the temperature of the refrigerant heat dissipation module is lower than the outdoor ambient temperature, condensation will occur, and condensation water will flow to the electric control board, causing short circuit of the electric control board, damage to electrical components, leakage, and other safety accidents, affecting the operation reliability. SUMMARY

[0005] The utility model aims at at least in a certain extent solves one of the technical problems in the related art. Therefore,

[0006] In some embodiments, an air conditioner outdoor unit is provided, which comprises:

[0007] A housing defines an accommodation space therein;

[0008] An outdoor heat exchanger is installed in the accommodation space;

[0009] An electric control box assembly is arranged in the accommodation space, and the electric control box assembly comprises:

[0010] A box body forms an installation space therein;

[0011] A box cover is connected to the top of the box body;

[0012] An electric control board is connected to the box cover and located in the installation space;

[0013] An element support is arranged on the side of the electric control board facing the bottom plate of the box body, and is arranged close to the first edge of the electric control board and is provided with a plurality of mounting positions;

[0014] A power module is mounted at the mounting position and connected with the electric control board, and the power module is provided with a mounting hole;

[0015] A refrigerant heat dissipation module is arranged on the element support and located on the side of the power module away from the electric control board, and is used for dissipating heat of the power module by using cold energy of refrigerant, and the refrigerant heat dissipation module comprises:

[0016] A first heat dissipation substrate connected with the power module;

[0017] A second heat dissipation substrate connected with the second heat dissipation substrate, and the second heat dissipation substrate is embedded with a heat dissipation pipe for circulating refrigerant;

[0018] A water blocking rib is formed on the element support and located on the side of the refrigerant heat dissipation module away from the first edge, one end of the water blocking rib is connected with the element support, and the other end extends towards the direction of the bottom plate, and the distance between the free end of the water blocking rib and the electric control board is greater than the distance between the bottom end of the second heat dissipation substrate and the electric control board.

[0019] In the above technical solution, the water blocking rib located on the side of the refrigerant heat dissipation module away from the first edge can block the condensed water generated by the refrigerant heat dissipation module, and prevent it from flowing to the live parts around the electric control board; meanwhile, the free end of the water blocking rib is arranged below the bottom end of the second heat dissipation substrate, so that the water blocking rib can guide the condensed water generated by the refrigerant heat dissipation module to the bottom plate of the box body, and then discharge it to the outside of the box body, effectively solving the condensation problem of the refrigerant heat dissipation module and improving the electrical safety of the electric control box assembly.

[0020] In some embodiments, a support support is further arranged in the mounting space, and the support support is provided with a connecting hole;

[0021] The box cover, the electric control board, the element support and the refrigerant heat dissipation module are respectively provided with a first through hole, a second through hole, a third through hole and / or a fourth through hole for the first fastener to pass through, corresponding to the connecting hole;

[0022] The first fastener is connected and fixed with the connecting hole after sequentially passing through the first through hole, the second through hole, the third through hole and / or the fourth through hole, so that the refrigerant heat dissipation module is attached to the power module.

[0023] In the above technical solution, the following advantages or beneficial effects are achieved: the connection hole is arranged on the support bracket, so that the first fastener is mainly screwed with the support bracket, and after the first fastener is connected, the refrigerant heat dissipation module is compressed, the risk of thread slipping of the refrigerant heat dissipation module is avoided, and the maintenance difficulty is reduced.

[0024] In some embodiments, a support bracket is further arranged in the mounting space, and the support bracket is provided with a connection hole;

[0025] The box cover, the electric control panel and the element support are respectively provided with first, second and third through holes for the first fastener to pass through, corresponding to the connection hole;

[0026] The first fastener is connected and fixed with the connection hole after sequentially passing through the first, second and third through holes, so that the refrigerant heat dissipation module is attached to the power module

[0027] In the above technical solution, the following advantages or beneficial effects are achieved: the connection hole is arranged on the support bracket, so that the first fastener is mainly screwed with the support bracket, and the pre-tightening force of the first fastener is borne by the support bracket with excellent strength and rigidity, thereby reducing the risk of thread slipping of the first fastener and reducing the maintenance difficulty.

[0028] In some embodiments, the support bracket is connected to the bottom plate, and when the first fastener is not assembled, the support bracket is movably arranged up and down relative to the bottom plate in the height direction of the cabinet.

[0029] In the above technical solution, the following advantages or beneficial effects are achieved: when the first fastener is installed, the support bracket moves upward as the first fastener is screwed in, and during this process, the support bracket gradually compresses the refrigerant heat dissipation module, thereby improving the fixing stability of the refrigerant heat dissipation module.

[0030] In some embodiments, the first fastener is a self-tapping screw, the diameter of the connection hole is smaller than the diameter of the self-tapping screw, and when the self-tapping screw is assembled, it is screwed into the connection hole until the support bracket tightly presses the refrigerant heat dissipation module.

[0031] In the above technical solution, the following advantages or beneficial effects are achieved: the self-tapping screw has higher manufacturing efficiency than existing threaded nails, and when the self-tapping screw is screwed, the support bracket is lifted upward as the self-tapping screw is screwed in, thereby tightly pressing the refrigerant heat dissipation module, and the installation firmness is improved.

[0032] In some embodiments, the bottom plate is formed with a mounting portion having a fixing hole, the support bracket is provided with a limiting catch, the limiting catch passes through the fixing hole and is clamped with the bottom end of the mounting portion after the first fastener is assembled; the limiting catch is connected to the support bracket through a support leg, and an end of the support leg away from the support bracket supports the top surface of the mounting portion.

[0033] The above technical solution has the following advantages or beneficial effects: by setting the limiting catch and the fixing hole, the support bracket is clamped on the bottom plate through the clamping structure, the clamping structure has the characteristics of convenient and fast installation, and the assembly efficiency of the electric control box assembly can be effectively improved, thereby improving the assembly efficiency of the air conditioner outdoor unit.

[0034] In some embodiments, the mounting portion is formed by protruding from the bottom plate to the direction of the box cover, and the movement amount of the support bracket in the height direction of the shell is less than the height of the mounting portion.

[0035] The above technical solution has the following advantages or beneficial effects: the above setting allows the limiting catch to move in the space between the mounting portion and the bottom plate, which is beneficial to improve the space utilization and effectively avoid the influence of the limiting catch extending out of the bottom plate on the installation of other components in the shell.

[0036] In some embodiments, the first heat dissipation substrate is connected to the support bracket and is provided with a first through hole, and the second heat dissipation substrate is installed on the element bracket and is provided with a second through hole, the first heat dissipation substrate and the second heat dissipation substrate are attached to each other, so that the first through hole and the second through hole are correspondingly communicated to form the fourth through hole.

[0037] The above technical solution has the following advantages or beneficial effects: by setting the second heat dissipation substrate and the first heat dissipation substrate, the heat dissipation area of the power module is further improved, and the heat dissipation efficiency is improved.

[0038] In some embodiments, one of the first heat dissipation substrate and the support bracket is provided with a positioning slot, and the other of the first heat dissipation substrate and the support bracket is provided with a positioning catch matched with the positioning slot.

[0039] The above technical solution has the following advantages or beneficial effects: by setting the positioning slot and the positioning catch, the first heat dissipation substrate and the support bracket can be positioned during assembly, which can effectively avoid the first heat dissipation substrate from being randomly misaligned or separated from the support bracket, thereby providing convenience for the assembly of the product and improving the assembly efficiency of the product.

[0040] In some embodiments, the box cover is provided with a placing groove towards the side of the bottom plate, a plurality of elastic buckles are arranged on the side wall of the placing groove, and the electric control board is connected in the placing groove and buckled with the side of the electric control board towards the bottom plate.

[0041] The above technical solution has the following advantages or beneficial effects: the elastic buckles are used to limit and fix the electric control board, the structure is simple, the installation is convenient, the installation efficiency and the stability of the circuit board installation are improved, and the waterproof effect of the electric control board is effectively improved by inversely buckling the PCB at the bottom of the box cover.

[0042] Another aspect of the present application also provides an air conditioner outdoor unit, which comprises:

[0043] A shell defines an accommodation space therein;

[0044] An outdoor heat exchanger is installed in the accommodation space;

[0045] An electric control box assembly is arranged in the accommodation space, and the electric control box assembly comprises:

[0046] A box body forms an installation space therein;

[0047] A box cover is connected to the top of the box body;

[0048] An electric control board is connected to the box cover and located in the installation space;

[0049] An element support is arranged on the side of the electric control board towards the bottom plate of the box body, the element support is arranged close to the first edge of the electric control board and is provided with a plurality of mounting positions thereon;

[0050] A power module is mounted at the mounting position and connected with the electric control board, and the power module is provided with a mounting hole;

[0051] A refrigerant heat dissipation module is arranged on the element support and located on the side of the power module away from the electric control board, and is used for dissipating heat of the power module by using cold energy of refrigerant;

[0052] A water blocking rib is connected at one end with the end of the element support away from the electric control board and extends towards the direction of the bottom plate at the other end, and the water blocking rib is located on the side of the refrigerant heat dissipation module away from the first edge;

[0053] The side of the element support and the refrigerant heat dissipation module is defined as a connecting end surface, and the water blocking rib protrudes towards the direction of the bottom plate relative to the connecting end surface, so as to block the condensation water generated by the refrigerant heat dissipation module from flowing to the periphery of the electric control board and guide the condensation water to the direction of the bottom plate.

[0054] In the above technical solution, the following advantages or beneficial effects are achieved: by arranging the water blocking rib on the side of the refrigerant heat dissipation module away from the first edge, and the water blocking rib protruding towards the bottom plate from the connecting end surface of the element support, the condensed water generated by the refrigerant heat dissipation module arranged on the element support can be blocked, preventing it from flowing to the live parts around the control panel, thereby improving the electrical safety of the control box assembly. At the same time, the free end of the water blocking rib is directed towards the bottom plate, so that the condensed water generated by the refrigerant heat dissipation module can be drained to the bottom plate of the box body, thereby being discharged to the outside of the box body through the bottom plate, effectively solving the condensation problem of the refrigerant heat dissipation module. BRIEF DESCRIPTION OF DRAWINGS

[0055] Figure 1 is a structural schematic diagram of an air conditioner outdoor unit according to an embodiment of the present disclosure;

[0056] Figure 2 is a structural schematic diagram of an air conditioner outdoor unit according to an embodiment of the present disclosure from another perspective;

[0057] Figure 3 is a structural schematic diagram of an air conditioner outdoor unit according to an embodiment of the present disclosure;

[0058] Figure 4 is a structural schematic diagram of an air conditioner outdoor unit according to an embodiment of the present disclosure;

[0059] Figure 5 is a structural schematic diagram of an air conditioner outdoor unit according to an embodiment of the present disclosure;

[0060] Figure 6 is a structural schematic diagram of an air conditioner outdoor unit according to an embodiment of the present disclosure;

[0061] Figure 7 is a structural schematic diagram of an air conditioner outdoor unit according to an embodiment of the present disclosure;

[0062] Figure 8 is Figure 7 is a sectional view at B-B;

[0063] Figure 9 is Figure 8 is a partial enlarged view at A;

[0064] Figure 10 is a structural schematic diagram of a refrigerant heat dissipation module according to an embodiment of the present disclosure;

[0065] Figure 11 is a partial sectional view of an electric control box assembly according to an embodiment of the present disclosure;

[0066] Figure 12 is an assembly schematic diagram of an electric control box assembly according to an embodiment of the present disclosure;

[0067] Figure 13 is an exploded view of the electric control board and the second heat dissipation substrate according to an embodiment of the present disclosure;

[0068] Figure 14 is an exploded view of the box body, the support bracket and the first heat dissipation substrate according to an embodiment of the present disclosure;

[0069] Figure 15 is a connection schematic diagram of the box body and the support bracket according to an embodiment of the present disclosure;

[0070] Figure 16 is a connection schematic diagram of the box body and the support bracket according to an embodiment of the present disclosure from another perspective;

[0071] Figure 17 is a connection schematic diagram of the box body and the support bracket according to an embodiment of the present disclosure from yet another perspective;

[0072] Figure 18 is Figure 17 is a partial enlarged view at B;

[0073] Figure 19 is Figure 15 is a top view of

[0074] Figure 20 is Figure 19 is a sectional view at A-A;

[0075] Figure 21 is a partial internal structure schematic diagram of the electric control box assembly according to an embodiment of the present disclosure.

[0076] In the above figures: air conditioner outdoor unit 100; casing 10; air inlet 11; air outlet 12; outdoor fan 20; outdoor heat exchanger 30; partition 40; electric control box assembly 50; box cover 1; first via hole 11; box body 2; bottom plate 21; mounting portion 22; fixing hole 23; electric control board 3; second via hole 31; component support 4; third via hole 41; power module 5; refrigerant heat dissipation module 6; first heat dissipation substrate 61; first perforation 611; positioning groove 612; second heat dissipation substrate 62; second perforation 621; heat dissipation pipe 63; water retaining rib 7; support bracket 8; connection hole 81; limiting clasp 82; supporting leg 83; positioning clasp 84; positioning column 85; first fastener 9. DETAILED DESCRIPTION

[0077] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is described and explained below in connection with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not to limit the present application. Based on the embodiments provided by the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0078] It is obvious that the drawings in the following description are only some examples or embodiments of the present application, and for those of ordinary skill in the art, the present application can be applied to other similar situations without creative labor on the basis of these drawings. In addition, it can be understood that although the efforts made in this development process can be complex and lengthy, for those of ordinary skill in the art related to the content disclosed in the present application, some design, manufacture or production changes based on the technology disclosed in the present application are only routine technical means and should not be understood as insufficient disclosure of the content disclosed in the present application.

[0079] In the present application, "embodiment" means that the specific features, structures or characteristics described in connection with the embodiment can be included in at least one embodiment of the present application. The appearance of this phrase at various places in the specification does not necessarily mean the same embodiment, nor is it an independent or alternative embodiment to other embodiments. Those of ordinary skill in the art explicitly and implicitly understand that the embodiments described in the present application can be combined with other embodiments without conflict.

[0080] The present application relates to "connection", "connection", "coupling" and the like, which are not limited to physical or mechanical connection, but can include electrical connection, whether direct or indirect. The present application relates to "a plurality of" means two or more. "And / or" describes the relationship between the associated objects, which means that there can be three relationships, for example, "A and / or B" can mean that A exists alone, A and B exist together, and B exists alone. The character " / " generally indicates that the associated objects before and after are in an "or" relationship. The terms "first", "second", "third" and the like in the present application only distinguish similar objects and do not represent a specific order for the objects.

[0081] In addition, the present application can repeatedly refer to numbers and / or letters in different examples, and such repetition is for the purpose of simplification and clarity, and does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the present application provides examples of various specific processes and materials, but those of ordinary skill in the art can realize the application of other processes and / or the use of other materials.

[0082] The utility model provides a kind of air conditioner outdoor unit 100, below reference Figures 1 to 21 Air conditioner outdoor unit 100 provided in the present application is described. Among them, air conditioner outdoor unit 100 is as the outdoor unit of air conditioner, usually set in outdoor for heat exchange with outdoor environment.

[0083] Reference Figure 1 In one illustrative embodiment of the air conditioner outdoor unit 100 provided by the utility model, the air conditioner outdoor unit 100 includes a casing 10, the casing 10 is installed outdoors, and the casing 10 forms the overall appearance of the air conditioner outdoor unit 100.

[0084] The casing 10 defines an accommodation space inside, which is used to install and fix various components of the air conditioner outdoor unit 100. Among them, the casing 10 has a top end and a bottom end, and the top end and the bottom end are two ends of the casing 10 arranged in the vertical direction.

[0085] Continue to refer to Figure 1 The casing 10 can include an air inlet 11. The air inlet 11 is in communication with the accommodation space, and the air inlet 11 serves as an entrance for external air to flow into the casing 10.

[0086] The casing 10 can include an air outlet 12. The air outlet 12 is in communication with the accommodation space, and the air outlet 12 serves as an exit for air after heat exchange in the casing 10 to flow out.

[0087] The indoor air outside the casing 10 enters the inside of the casing 10 through the air inlet 11 and is finally discharged to the outside through the air outlet 12.

[0088] In this embodiment, the air inlet 11 can be provided on the back panel of the casing 10, and the air outlet 12 can be located on the front panel of the casing 10. Of course, the air inlet 11 can also be provided on the side panel of the casing 10, i.e., the air inlet 11 can be provided on the back panel 19 and / or the side panel 12.

[0089] Among them, the air inlet 11 can be provided on two side panels or only one of the two side panels. The air outlet can also be provided on the top panel of the casing 10.

[0090] It should be noted that the directions described in the text are based on the direction of the user facing the air conditioner outdoor unit 100, wherein the side of the air conditioner outdoor unit 100 facing the user when in use is defined as the front side, and the opposite side is the back side. The left side and the right side are distinguished as left and right in the direction of the user facing the air conditioner outdoor unit 100.

[0091] Reference Figure 2 The air conditioner outdoor unit 100 can include an outdoor heat exchanger 30, which is provided in the accommodation space and used for heat exchange with the air in the casing 10. Among them, the outdoor heat exchanger 30 can be installed on the inner side of the air inlet 11.

[0092] In order to increase the heat exchange area of the outdoor heat exchanger 30 while minimizing the size of the air conditioner outdoor unit 100, the outdoor heat exchanger 30 is arranged corresponding to the air inlet 11 in the embodiment. The side of the outdoor heat exchanger 30 close to the air inlet is the windward side, and the side opposite to the windward side is the leeward side.

[0093] In some embodiments of the present application, the air conditioner outdoor unit 100 can include an outdoor fan 20 arranged in the housing 10 and close to the air outlet 12. The outdoor fan 20 can be an axial fan.

[0094] The outdoor fan 20 can be arranged towards the air outlet 12, that is, the outdoor fan 20 is arranged between the outdoor heat exchanger 30 and the air outlet 12.

[0095] In the embodiment, the outdoor fan 20 is installed between the outdoor heat exchanger 30 and the air outlet 12. Under the action of the outdoor fan 20, outdoor air enters the containing space through the air inlet 11, and the outdoor air exchanges heat with the outdoor heat exchanger 30 in the containing space. The outdoor air after heat exchange is driven by the outdoor fan 20 to discharge from the air outlet 12 to the housing 10.

[0096] The air conditioner outdoor unit 100 can include a compressor arranged in the containing space in the housing 10.

[0097] It can be understood that the housing 10 can include a chassis. The chassis serves as the basis of the air conditioner outdoor unit 100 and provides mounting positions for components such as the compressor, the outdoor heat exchanger 30, and the outdoor fan 20. The chassis forms the bottom end of the housing 10.

[0098] Reference Figure 3 The air conditioner outdoor unit 100 can include a partition 2 arranged in the housing 1 in the vertical direction and separating the containing space inside the housing 1 into a fan cavity and a compressor cavity.

[0099] In some embodiments of the present application, the fan cavity and the compressor cavity are respectively located on the left side and the right side of the housing 1. The outdoor fan is arranged in the fan cavity, and the compressor is arranged in the compressor cavity.

[0100] Of course, in other embodiments, the fan cavity and the compressor cavity can be respectively located on the right side and the left side of the housing.

[0101] The air conditioner can include a throttling device for throttling. The throttling device can be arranged in the air conditioner indoor unit or the air conditioner outdoor unit 100.

[0102] The air conditioner can include a refrigerant circuit. The refrigerant circuit is formed by connecting the indoor unit and the outdoor unit 100 using a connection pipe. The air conditioner can perform indoor cooling or heating by circulating refrigerant through the compressor, the condenser, the throttling device, and the evaporator in sequence.

[0103] The air conditioner can include an indoor unit, i.e., an air conditioner indoor unit, which includes an indoor heat exchanger.

[0104] The indoor heat exchanger and the outdoor heat exchanger 30 serve as a condenser or an evaporator. When the indoor heat exchanger serves as a condenser, the air conditioner serves as a heater in a heating mode, and when the indoor heat exchanger serves as an evaporator, the air conditioner serves as a cooler in a cooling mode.

[0105] The refrigeration cycle and the heating cycle include a compression process, a condensation process, an expansion process, and an evaporation process, and provide cold or heat to an indoor space by heat absorption and heat release of a refrigerant, thereby adjusting the temperature of the indoor space.

[0106] The compressor compresses refrigerant gas into a high-temperature and high-pressure state and discharges the compressed refrigerant gas, and the discharged refrigerant gas flows into the condenser.

[0107] The condenser condenses the compressed high-temperature and high-pressure gaseous refrigerant into liquid refrigerant, and heat is released to the surrounding environment through the condensation process.

[0108] The liquid refrigerant flowing out of the condenser enters the throttling device, and the throttling device expands the high-temperature and high-pressure liquid refrigerant condensed by the condenser into low-pressure liquid refrigerant.

[0109] The low-pressure liquid refrigerant flowing out of the throttling device enters the evaporator, and the liquid refrigerant absorbs heat and evaporates into low-temperature and low-pressure refrigerant gas as it flows through the evaporator, and the low-temperature and low-pressure refrigerant gas returns to the compressor.

[0110] The evaporator can achieve a refrigeration effect by exchanging heat with a material to be cooled using latent heat of evaporation of the refrigerant. In the entire cycle described above, the air conditioner can adjust the temperature of the indoor space.

[0111] In some embodiments of the present application, the air conditioner outdoor unit 100 can include an electric control box assembly 50 disposed in a receiving space for controlling the operating state of a plurality of components in the air conditioner outdoor unit.

[0112] In the present embodiment, the electric control box assembly 50 is disposed across the top of the partition.

[0113] In some embodiments of the present application, the electric control box assembly 50 can include a box body 2 in which a mounting space is formed.

[0114] It can be understood that the installation space 111 herein can be closed or partially open, and should be considered as a three-dimensional space.

[0115] The electric control box assembly 50 can include an electric control board 3, which is used to receive signals, analyze signals, issue control instructions, etc., to realize the electric control function of the air conditioner outdoor unit. Referring to Figure 4 、 Figure 5 , the electric control board 3 is located in the installation space.

[0116] It can be understood that the electric control board 3 can include a PCB board and a plurality of electrical components disposed on the PCB board. The PCB board has high integration, good support for various devices, small occupied volume, and is convenient for processing, manufacturing and assembling according to the required electric control program and electric control components.

[0117] In some embodiments of the present application, referring to Figure 6 , the electric control box assembly 50 can include a power module 5, wherein the power module 5 is electrically connected with the electric control board 3, and the power module 5 can be provided with a plurality of

[0118] It should be noted that the power module 5 in the electric control box assembly 50 usually includes power components. The power module 5 is installed on the electric control board 3, some of which can provide certain electric energy for the normal work of the electric control board 3, and some of which are used as electrical component on-off circuits or signal transmission circuits with specific functions. For specific power components, it is well known to those skilled in the art, which will not be described here.

[0119] In some embodiments of the present application, continuing to refer to Figure 6 , the electric control box assembly 50 can include a component support 4, which is arranged on the side of the electric control board 3 facing the bottom plate 21 of the box body 2.

[0120] In the present embodiment, the component support 4 is arranged close to the first edge of the electric control board 3, and a plurality of mounting positions are arranged on the component support 4, which are used to provide mounting positions for the power module 5.

[0121] The power module 5 is mounted at the mounting position. That is, the power module 5 is mounted on the electric control board 3 through the component support 4, and the power module 5 is connected with the electric control board 3.

[0122] In order to realize the heat dissipation of the power module 5, in the present embodiment, the electric control box assembly 50 can include a refrigerant heat dissipation module 6. Referring to Figure 4 、 Figure 5 , the refrigerant heat dissipation module 6 is fixed to the side of the power module 5 away from the electric control board 3, and the refrigerant heat dissipation module 6 is used to dissipate heat from the power module 5 by using the cold energy of the refrigerant.

[0123] In the embodiment, in order to increase the heat conduction efficiency of the power module 5 and the refrigerant heat dissipation module 6, and further improve the heat dissipation effect and efficiency of the power module 5, the refrigerant heat dissipation module 6 can be directly attached to the power module 5. In this way, when the air conditioner outdoor unit is working, the heat generated by the power module 5 is conducted to the refrigerant heat dissipation module 6, so that the refrigerant heat dissipation module 6 plays a direct heat dissipation role.

[0124] In some embodiments of the present application, the refrigerant heat dissipation module 6 can include a heat dissipation pipe 63 for circulating refrigerant. One end of the heat dissipation pipe 63 can be connected to the throttling device of the air conditioner outdoor unit through a pipe, and the other end of the heat dissipation pipe 63 can be connected to the low-pressure gas pipe of the air conditioner outdoor unit through a pipe.

[0125] In the embodiment, one end of the refrigerant pipe of the refrigerant circuit can be used as the heat dissipation pipe 63. That is, the heat dissipation pipe 63 in the present application can be directly formed by the refrigerant pipe of the refrigerant circuit.

[0126] Of course, the heat dissipation pipe 63 of the present application can also be a pipe of similar material and similar shape to the refrigerant pipe, and the refrigerant pipe is connected to the heat dissipation pipe 63, so that the refrigerant in the refrigerant pipe can be circulated into the heat dissipation pipe 63 to dissipate heat by using its own cold energy, without the need to additionally set up a separate refrigerant supply system, but directly use the refrigerant circuit of the air conditioner.

[0127] In the high-temperature refrigeration mode, if the temperature of the refrigerant in the refrigerant heat dissipation module 6 is low, the temperature of the refrigerant heat dissipation module 6 will be low, and when the temperature of the refrigerant heat dissipation module 6 is lower than the outdoor environment temperature, condensation problem will occur to produce condensation water. If the condensation water flows to the electric control panel 3, it will cause short circuit of the electric control panel 3, damage of electrical components, leakage and other safety accidents, and affect the operation reliability.

[0128] In order to solve the condensation problem, the electric control box assembly 50 can include a water blocking rib 7. Referring to Figure 6 , one end of the water blocking rib 7 is connected to the component support 4, and the other end extends towards the direction of the bottom plate 21.

[0129] Continuing to refer to Figure X , the water blocking rib 7 is located on the side of the refrigerant heat dissipation module 6 away from the first edge. The side of the component support 4 connected to the refrigerant heat dissipation module 6 is defined as a connection end surface, and the water blocking rib protrudes towards the direction of the bottom plate relative to the connection end surface, so as to block the condensation water generated by the refrigerant heat dissipation module 6 from flowing to the periphery of the electric control panel 3 while guiding the condensation water to the direction of the bottom plate 21.

[0130] In the embodiment, the water blocking rib 7 is arranged to block the condensed water generated by the refrigerant heat dissipation module 6, avoid the diffusion of the condensed water to the live parts around the power module 5 on the electric control board 3, thereby avoiding the influence of the condensed water on the electric control board 3, and improving the electrical safety of the electric control box assembly 50. Meanwhile, the water blocking rib 7 can guide the condensed water generated by the refrigerant heat dissipation module 6 to the bottom plate 21 of the box body 2, thereby being discharged to the outside of the box body 2, and effectively solving the condensed water problem of the refrigerant heat dissipation module 6.

[0131] In some embodiments, a plurality of drainage holes are arranged on the bottom plate 21. The drainage holes are used to discharge the condensed water on the bottom plate 21 to the outside of the box body 2.

[0132] In some embodiments of the present application, the electric control box assembly 50 can include a box cover 1 connected to the top of the box body 2. The electric control board 3 is installed on the box cover 1.

[0133] The box body 2 and the box cover 1 are detachably connected by at least one of bolt connection, buckle connection or plug-in connection. The box body 2 and the box cover 1 cooperatively provide mounting positions for the internal components and can prevent external water vapor from entering the inside, thereby providing protection for the components.

[0134] In some embodiments of the present application, the electric control box assembly 50 can include a support bracket 8. The support bracket 8 is arranged in the mounting space, that is, the support bracket 8 is arranged in the box body 2 rather than outside the box body 2.

[0135] Reference Figures 8 to 10 The refrigerant heat dissipation module 6 can include a first heat dissipation substrate 61 installed on the support bracket 8. The heat dissipation pipe 63 is embedded on the first heat dissipation substrate 61 through the box body 2.

[0136] The support bracket 8 is arranged to support the first heat dissipation substrate 61 of the refrigerant heat dissipation module 6. When the support bracket 8 is installed on the box body 2, it is fixed relative to the box body 2, and the first heat dissipation substrate 61 is also fixed relative to the box body 2.

[0137] In the embodiment, the first heat dissipation substrate 61 can be fixed on the electric control board 3 by penetrating the mounting holes on the power module through screws or bolts.

[0138] The refrigerant heat dissipation module 6 can include a second heat dissipation substrate 62 installed on the element bracket 4.

[0139] In some embodiments, the second heat dissipation substrate 62 can be installed on the element bracket 4 by a second fastener. The second fastener can be a screw or a stud.

[0140] The detachable connection of the second heat dissipation substrate 62 and the element support 4 is realized by the second fastener, facilitating the installation of the second heat dissipation substrate 62 and being simple and convenient.

[0141] In the embodiment, the two heat dissipation substrates of the second heat dissipation substrate 62 and the first heat dissipation substrate 61 further improve the heat dissipation area of the power module 5, thereby improving the heat dissipation efficiency.

[0142] Specifically, the heat dissipation pipe 63 is in a U-shaped pipe structure, and the heat dissipation pipe 63 can circulate refrigerant. When the temperature of the refrigerant in the heat dissipation pipe 63 is lower than that of the first heat dissipation substrate 61 or the second heat dissipation substrate 62, the heat on the second heat dissipation substrate 62 is transferred to the heat dissipation pipe 63, or the heat in the second heat dissipation substrate 62 is transferred to the heat dissipation pipe 63, so that the two heat dissipation substrates can simultaneously maintain an optimal working temperature range, thereby stably dissipating heat for the power module 5 and preventing the working temperature of the power module 5 from being higher than the maximum temperature that can be tolerated.

[0143] In the embodiment, the first heat dissipation substrate 61 is provided with a receiving groove on the side facing the support bracket 8, and the heat dissipation pipe 63 is arranged in the receiving groove, so that the position of the heat dissipation pipe 63 relative to the first heat dissipation substrate 61 is fixed, the heat dissipation pipe 63 can form stable contact with the first heat dissipation substrate 61, thereby performing contact heat exchange to reduce the temperature of the first heat dissipation substrate 61 and improve the heat exchange efficiency of the heat dissipation pipe 63 and the first heat dissipation substrate 61. The second heat dissipation substrate 62 in contact with the first heat dissipation substrate 61 is further effectively cooled, thereby ensuring that the power module 5 is effectively cooled.

[0144] In some embodiments, the heat dissipation pipe 63 and the first heat dissipation substrate 61 are pre-pressed to form a heat sink. The heat dissipation pipe 63 and the first heat dissipation substrate 61 are connected by pressing to form a heat sink. The heat sink is used as a component for direct installation and use, which is convenient for installation and improves the assembly efficiency of the installer.

[0145] In some embodiments of the present application, referring to Figure 15 , the support bracket 8 is provided with a connecting hole 81. The connecting hole 81 is arranged on the support bracket 8 in the height direction of the shell.

[0146] Referring to Figure 11 , Figure 12 , the box cover 1, the electric control panel 3, the element support 4, and the refrigerant heat dissipation module 6 are respectively provided with a first via hole 11, a second via hole 31, a third via hole 41, and a fourth via hole corresponding to the connecting hole 81. The first via hole 11, the second via hole 31, the third via hole 41, and the fourth via hole are concentrically arranged to be penetrated by the first fastener 9.

[0147] When the electric control box assembly 50 is assembled, the first fastener 9 is sequentially threaded through the first through hole 11, the second through hole 31, the third through hole 41 and the fourth through hole, and is connected and fixed with the connecting hole 81, so that the refrigerant heat dissipation module 6 is attached to the power module 5, and refrigerant heat dissipation is achieved.

[0148] In the embodiment, the connecting hole 81 is arranged on the support bracket 8, so that the first fastener 9 is mainly screwed with the support bracket 8, and the pre-tightening force of the first fastener 9 is borne by the support bracket 8 which has excellent strength and rigidity, so that the risk of thread slippage of the first fastener 9 is reduced, and the maintenance difficulty is reduced. For example, the first fastener 9 is provided with three.

[0149] In other embodiments, the box cover 1, the electric control panel 3 and the element bracket 4 can be respectively provided with the first through hole 11, the second through hole 31 and the third through hole 41 corresponding to the connecting hole 81. The first through hole 11, the second through hole 31 and the third through hole 41 are concentrically arranged to be threaded through by the first fastener 9.

[0150] When the electric control box assembly 50 is assembled, the first fastener 9 is sequentially threaded through the first through hole 11, the second through hole 31, the third through hole 41 and the connecting hole 81, and is connected and fixed with the connecting hole 81. After the first fastener 9 is assembled, the support bracket 8 will press the refrigerant heat dissipation module 6, so that the refrigerant heat dissipation module 6 is attached to the power module 5, and refrigerant heat dissipation is achieved.

[0151] In some embodiments, the first heat dissipation substrate 61 is provided with a first through hole 611, and the first through hole 611 is arranged to penetrate through the thickness direction of the first heat dissipation substrate 61. The second heat dissipation substrate 62 is provided with a second through hole 621, and the second through hole 621 is arranged to penetrate through the thickness direction of the second heat dissipation substrate 62.

[0152] Reference Figure 12 After the first fastener 9 is assembled, the first heat dissipation substrate 61 is attached to the second heat dissipation substrate 62, so that the first through hole 611 and the second through hole 621 are correspondingly communicated to form the fourth through hole.

[0153] In the embodiment, the connecting hole 81 is arranged on the support bracket 8, and only the fourth through hole is arranged on the refrigerant heat dissipation module 6, so as to avoid that the connecting hole 81 is arranged on the refrigerant heat dissipation module 6, and the risk of thread slippage or other damage on the refrigerant heat dissipation module 6 during online production and after-sales maintenance.

[0154] It should be noted that since the heat dissipation pipe 63 and the first heat dissipation substrate 61 are pre-pressed and combined, if the thread slips, the refrigerant substrate needs to be replaced. This needs to be fluorinated, and a new refrigerant substrate needs to be welded, vacuumed and fluorinated again, which not only increases the maintenance difficulty, but also increases the maintenance cost.

[0155] Specifically, the electric control board 3 is connected to the box cover 1, and when the box cover 1 is installed on the box body 2, the position of the box cover 1 relative to the box body 2 is fixed, so that the position of the electric control board 3 relative to the box body 2 is also fixed, and the position of the electric control board 3 in the installation space is also relatively fixed, and the position of the element support 4 in the installation control is also relatively fixed.

[0156] Since the position of the aforementioned first heat dissipation substrate 61 relative to the installation space is also relatively fixed after being installed on the support bracket 8, the first heat dissipation substrate 61 and the second heat dissipation substrate 62 can both effectively dissipate heat for the power module 5 on the electric control board 3.

[0157] In some embodiments of the present application, with reference to Figures 14 to 20 , the support bracket 8 is connected to the bottom plate 21. When the first fastener 9 is not assembled, the support bracket 8 is movably arranged up and down relative to the bottom plate 21 along the height direction of the shell.

[0158] That is, when the support bracket 8 is separately connected to the bottom plate 21, the support bracket 8 has a movement amount in the up-down direction, and with the assembly of the first fastener 9, the support bracket 8 can gradually lock and press the refrigerant heat dissipation module 6, improve the installation stability of the refrigerant heat dissipation module 6, and ensure effective heat dissipation for the power module 5.

[0159] In some embodiments of the present application, the first fastener 9 can be a self-tapping screw. The diameter of the connecting hole 81 is smaller than the diameter of the self-tapping screw, and when the self-tapping screw is assembled, it is screwed into the connecting hole 81 until the support bracket 8 is locked and pressed against the refrigerant heat dissipation module 6.

[0160] In the present embodiment, when the self-tapping screw is tapped, the support bracket 8 will be lifted upward as the self-tapping screw is screwed in, and the refrigerant heat dissipation module 6 is pressed tightly by the support bracket 8. That is, the first heat dissipation substrate 61 is pressed against the second heat dissipation substrate 62 by the support bracket 8, so that the first heat dissipation substrate 61 and the second heat dissipation substrate 62 form a stable installation with the support bracket 8, and the installation firmness of the refrigerant heat dissipation module 6 is improved. At the same time, the manufacturing efficiency of the self-tapping screw is higher than that of the threaded nail.

[0161] In some embodiments of the present application, with reference to Figure 16 , Figure 17 , the bottom plate 21 is formed with an installation portion 22 having a fixing hole 23, and the support bracket 8 is provided with a limiting clamping hook 82 which is adapted to be clamped with the fixing hole 23.

[0162] When the support bracket 8 is installed, the limiting clamping hook 82 passes through the fixing hole 23, and the limiting clamping hook 82 is adapted to be clamped with the bottom end of the installation portion 22 after the assembly of the first fastener 9.

[0163] The limiting clamping hook 82 and the fixing hole 23 are arranged, so that the support bracket 8 is clamped on the bottom plate 21 through the clamping structure, the clamping structure has the characteristics of convenient and fast installation, and the assembly efficiency of the electric control box assembly 50 can be effectively improved, and then the assembly efficiency of the outdoor unit of the air conditioner is improved.

[0164] Further, referring to Figure 15 , the limiting clamping hook 82 is connected to the support bracket 8 through the supporting leg 83, and the end of the supporting leg 83 away from the support bracket 8 is adapted to support the top surface of the mounting portion 22.

[0165] Specifically, when the support bracket 8 is installed on the mounting portion 22 and the first fastener 9 is not assembled, the end of the supporting leg 83 away from the support bracket 8 supports the top surface of the mounting portion 22. After the first fastener 9 is not assembled, the limiting clamping hook 82 is clamped with the bottom end of the mounting portion 22, so that the support bracket 8 and the refrigerant heat dissipation module 6 are fixed relative to the box body 2.

[0166] In some embodiments, the mounting portion 22 is formed by part of the bottom plate 21 protruding in the direction of the box cover 1, and the movement amount H1 of the support bracket 8 in the height direction of the shell is not greater than the height H2 of the mounting portion 22.

[0167] The fixing hole 23 is arranged on the top surface of the mounting portion 22. Referring to Figure 20 , the movement amount H1 of the support bracket 8 in the height direction of the shell is not greater than the height H2 of the mounting portion 22, so that the limiting clamping hook 82 can move in the space between the mounting portion 22 and the bottom plate 21, which is beneficial to improve the space utilization and effectively avoid that the limiting clamping hook 82 is too long to affect the installation of other components in the shell.

[0168] In some embodiments of the present application, the distance between the free end of the water baffle 7 and the electric control board 3 is greater than the distance between the bottom end of the second heat dissipation substrate 62 and the electric control board 3. That is, referring to Figure 21 , the free end of the water baffle 7 is lower than the bottom end of the second heat dissipation substrate 62.

[0169] In the present embodiment, the free end of the water baffle 7 is arranged below the bottom end of the second heat dissipation substrate 62 through the above arrangement, and the condensed water generated by the second heat dissipation substrate 62 installed on the element bracket 4 can flow to the free end of the water baffle 7 along the extension direction of the water baffle 7. The condensed water condensed on the free end of the water baffle 7 can drip to the bottom plate 21 under the action of its own gravity, and will not flow to the second heat dissipation substrate 62, effectively solving the condensation problem of the refrigerant heat dissipation module 6.

[0170] In some embodiments of the present application, one of the first heat dissipation substrate 61 and the support bracket 8 is provided with a positioning groove 612, and the other of the first heat dissipation substrate 61 and the support bracket 8 is provided with a positioning clamping hook 84 matched with the positioning groove 612.

[0171] Reference Figure 14 、 Figure 18 The support bracket 8 is provided with a positioning hook 84 extending towards the first heat dissipation base plate 61, and the first heat dissipation base plate 61 is provided with a positioning groove 612, and the positioning hook 84 and the positioning groove 612 are matched to form stable limiting of the first heat dissipation base plate 61 and the support bracket 8.

[0172] Reference Figure 17 The support bracket 8 is provided with a positioning column 85, wherein the positioning column 85 is located at one end of the length direction of the support bracket 8 and is sleeved in the bent pipe section of the heat dissipation pipe 63.

[0173] In this embodiment, after the support bracket 8 is installed on the bottom plate 21, the support bracket 8 can be used as an effective reference, and through the cooperation of the positioning column 85, the positioning hook 84 and the positioning groove 612, the first heat dissipation base plate 61 embedded with the heat dissipation pipe 63 will not shake relative to the box body 2, and the first heat dissipation base plate 61 is easier to align and install, and the assembly reliability is high.

[0174] The electric control board 3 is arranged in a specific position of the installation space, the element bracket 4 is installed on the electric control board 3 and is connected with the second heat dissipation base plate 62, that is, the second heat dissipation base plate 62 can be kept stable relative to the electric control board 3, so that the heat exchange relative position and the heat dissipation convection surface of the first heat dissipation base plate 61 and the electric control board 3 are determined, and the second heat dissipation base plate 62 is further used for heat dissipation with the electric control board 3 with high temperature, so as to efficiently dissipate heat for the electric control board 3, so that the electric control board 3 can work normally without being too high in temperature, thereby improving the working stability of the electric control board 3.

[0175] In some embodiments, the box cover 1 is provided with a placing groove on the side surface facing the bottom plate 21, a plurality of elastic buckles are arranged on the side wall of the placing groove, the electric control board 3 is connected in the placing groove, and the elastic buckles are matched with the side surface of the electric control board 3 facing the bottom plate 21.

[0176] The electric control board 3 is limited and fixed by the elastic buckles, and the structure is simple, the installation is convenient, the installation efficiency and the stability of the circuit board installation are improved; at the same time, the electric control board 3 is inverted and buckled at the bottom of the box cover 1, so that the waterproof effect of the electric control board 3 can be effectively improved.

[0177] In the embodiment, when assembling the electric control box assembly 50, the component support 4 and the power module 5 in the foregoing example are connected to the electric control board 3, and then the second heat dissipation base plate 62 is connected to the component support 4 and the electric control board 3 is installed on the box cover 1; at the same time, the support bracket 8 is installed on the box body 2, and the first heat dissipation base plate 61 with the heat dissipation pipe 63 embedded is installed. When the box cover 1 is connected to the box body 2, the electric control board 3, the second heat dissipation base plate 62, the support bracket 8 and the first heat dissipation base plate 61 can be positioned, and at this time, the first fastener 9 is assembled to stabilize the relative positions of the components, and the first heat dissipation base plate 61 and the second heat dissipation base plate 62 are tightly connected to reliably dissipate heat from the power module 5.

[0178] Specifically, the second heat dissipation base plate 62 close to the power module 5 first dissipates heat from the power module 5, the heat absorbed by the second heat dissipation base plate 62 is further absorbed by the first heat dissipation base plate 61 and further exchanged with the refrigerant in the heat dissipation pipe 63, and the heated refrigerant flows out from the outlet end of the heat dissipation pipe 63, so that the temperature of the first heat dissipation base plate 61 and the second heat dissipation base plate 62 is maintained within a certain range, and the power module 5 can work at a suitable working temperature.

[0179] When the air conditioner outdoor unit is in a high-temperature environment, if the temperature of the refrigerant heat dissipation module 6 is lower than the outdoor environment temperature, condensation will occur, and condensation water will be generated. At this time, the water blocking rib 7 can block the spread of the condensation water to the electric control board 3 and guide the condensation water to flow downward to the bottom plate 21 of the box body 2, thereby solving the condensation problem of the refrigerant heat dissipation module 6.

[0180] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

[0181] In order to facilitate explanation, the above description has been made in combination with specific embodiments. However, the above exemplary discussion is not intended to exhaust or limit the embodiments to the specific forms disclosed above. Various modifications and variations can be derived according to the above teachings. The selection and description of the above embodiments are for better explanation of the principles and practical applications, so that those skilled in the art can better use the embodiments and various different modified embodiments suitable for specific use considerations.

Claims

1. An air conditioner outdoor unit characterized by comprising: The utility model relates to a kind of outdoor unit, including: Casing, which is defined with accommodation space inside; Outdoor heat exchanger, installed in the accommodation space; Electric control box assembly, disposed in the accommodation space, the electric control box assembly includes: Box body, which is formed with installation space inside; Box cover, connected on the top of the box body; Electric control board, connected on the box cover and located in the installation space; Component support, provided on the side of the electric control board towards the bottom plate of the box body, the component support is arranged close to the first edge of the electric control board and is provided with a plurality of mounting positions thereon; Power module, mounted at the mounting position and connected with the electric control board, the power module is provided with a mounting hole; Refrigerant heat dissipation module, provided on the component support and located on the side of the power module away from the electric control board, for dissipating heat of the power module using cold energy of refrigerant, the refrigerant heat dissipation module includes: First heat dissipation substrate, connected with the power module; Second heat dissipation substrate, connected with the second heat dissipation substrate, the second heat dissipation substrate is embedded with heat dissipation pipe for circulating refrigerant; Water baffle, formed on the component support and located on the side of the refrigerant heat dissipation module away from the first edge, one end of the water baffle is connected with the component support, and the other end extends towards the direction of the bottom plate, the distance between the free end of the water baffle and the electric control board is greater than the distance between the bottom end of the second heat dissipation substrate and the electric control board.

2. The air conditioner outdoor unit according to claim 1, characterized by Further comprising a support bracket erected in the installation space, the support bracket is provided with a connecting hole; The box cover, the electric control board, the component support, the refrigerant heat dissipation module are respectively provided with first, second, third and / or fourth through holes for the first fastener to pass through corresponding to the connecting hole; The first fastener is connected and fixed with the connecting hole after passing through the first, second, third and / or fourth through holes in sequence, so that the refrigerant heat dissipation module is attached to the power module.

3. The air conditioner outdoor unit according to claim 1, characterized by Further comprising a support bracket erected in the installation space, the support bracket is provided with a connecting hole; The box cover, the electric control board, the component support are respectively provided with first, second and third through holes for the first fastener to pass through corresponding to the connecting hole; The first fastener is connected and fixed with the connecting hole after passing through the first, second and third through holes in sequence, so that the refrigerant heat dissipation module is attached to the power module.

4. The air conditioner outdoor unit according to claim 2 or 3, characterized by The support bracket is connected to the bottom plate, when the first fastener is not assembled, the support bracket can be movably arranged up and down along the height direction of the casing relative to the bottom plate.

5. The air conditioner outdoor unit according to claim 4, characterized by The first fastener is self-tapping screw, the aperture of the connecting hole is smaller than the diameter of the self-tapping screw, and the self-tapping screw is screwed into the connecting hole when assembled until the support bracket is pressed and locked with the refrigerant heat dissipation module.

6. The air conditioner outdoor unit according to claim 4, characterized by The bottom plate is provided with a mounting portion with a fixing hole, and the supporting bracket is provided with a limiting hook which passes through the fixing hole and is clamped with the bottom end of the mounting portion after the first fastener is assembled.

7. The air conditioner outdoor unit according to claim 6, characterized by The mounting portion is formed by the protrusion of the part of the bottom plate in the direction of the box cover, and the moving amount of the supporting bracket in the height direction of the shell is less than the height of the mounting portion.

8. The air conditioner outdoor unit according to claim 2, characterized by The first heat dissipation substrate is connected to the supporting bracket and is provided with a first through hole, and the second heat dissipation substrate is mounted on the element bracket and is provided with a second through hole, the first heat dissipation substrate and the second heat dissipation substrate are attached to each other, so that the first through hole and the second through hole are correspondingly communicated to form the fourth through hole.

9. The air conditioner outdoor unit according to claim 8, characterized by The first heat dissipation substrate and the supporting bracket are provided with a positioning slot and a limiting hook matched with the positioning slot, respectively.

10. An air conditioner outdoor unit characterized by comprising: The shell defines an accommodating space therein; The outdoor heat exchanger is mounted in the accommodating space; The electric control box assembly is arranged in the accommodating space, and the electric control box assembly comprises: The box body is provided with a mounting space; The box cover is connected to the top of the box body; The electric control board is connected to the box cover and located in the mounting space; The element bracket is arranged on the side of the electric control board facing the bottom plate of the box body, and the element bracket is arranged close to the first edge of the electric control board and is provided with a plurality of mounting positions; The power module is mounted at the mounting position and connected with the electric control board, and the power module is provided with a mounting hole; The refrigerant heat dissipation module is arranged on the element bracket and located on the side of the power module away from the electric control board, and is used for dissipating heat of the power module by using cold energy of refrigerant; The water baffle is connected to one end of the element bracket away from the electric control board, and the other end extends towards the bottom plate, and the water baffle is located on the side of the refrigerant heat dissipation module away from the first edge; The side of the element bracket and the refrigerant heat dissipation module is defined as a connecting end surface, and the water baffle protrudes towards the bottom plate relative to the connecting end surface, so as to block the condensation water generated by the refrigerant heat dissipation module from flowing to the periphery of the electric control board and guide the condensation water to the direction of the bottom plate. ​

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