Air conditioner outdoor unit and air conditioning system

Abstract

The application discloses an air conditioner outdoor unit and an air conditioner system, and relates to the technical field of household appliances, and aims to solve the problem of low heat dissipation efficiency of an electric appliance box. The air conditioner outdoor unit comprises a shell and an electric appliance box assembly. The shell is internally formed with a cavity. The electric appliance box assembly is arranged in the cavity. The shell is provided with an air inlet and an air outlet which are in communication with the cavity. The electric appliance box assembly comprises a casing, an electric reactor and a supporting piece. The casing is internally formed with a containing cavity. The casing is provided with a first air inlet which is in communication with the containing cavity. The casing comprises a first wall plate. The first air inlet is arranged on the first wall plate. The electric reactor is arranged outside the casing. The supporting piece is fixedly connected with the electric reactor and the first wall plate and at least partially located between the electric reactor and the first wall plate, so as to separate the electric reactor and the first wall plate to form a ventilation gap. The vertical projection of the electric reactor on the first wall plate at least partially overlaps with the first air inlet. The ventilation gap is in communication with the first air inlet. The application is used for adjusting temperature.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of household appliances, and in particular to an air conditioner outdoor unit and an air conditioner system. BACKGROUND

[0002] The air conditioner outdoor unit includes an electrical box, and the electrical box includes electrical components such as a main control board inside the electrical box. The electrical box includes an electric reactor on the outer wall of the electrical box. The electrical components and the electric reactor work together to ensure the normal operation of the air conditioner outdoor unit. The electrical components and the electric reactor generate heat during operation. To ensure the normal operation of the electrical components and the electric reactor, the electrical components need to be cooled.

[0003] In related technologies, in order to cool the electrical components and the electric reactor, air inlets and air outlets are formed on the electrical box. The air flow generated by the air fan of the air conditioner outdoor unit flows through the inside of the electrical box through the air inlets and air outlets to cool the electrical components. At the same time, since the air flow can pass through the surface of the electric reactor, the air flow can also carry away the heat generated by the electric reactor.

[0004] However, due to the unreasonable position of the air inlets and air outlets and the electric reactor, the contact area between the air flow and the electric reactor is small, and the flow efficiency of the air flow entering the inside of the electrical box is low, resulting in low overall cooling efficiency of the electrical box. SUMMARY

[0005] The present application provides an air conditioner outdoor unit and an air conditioner system to solve the problem of low cooling efficiency of the electrical box.

[0006] To achieve the above-mentioned purpose, the embodiments of the present application adopt the following technical solutions:

[0007] In a first aspect, the embodiments of the present application provide an air conditioner outdoor unit, which includes a shell and an electrical box assembly. The shell has a cavity inside, and the electrical box assembly is arranged in the cavity. The shell has an air inlet and an air outlet. The electrical box assembly includes a casing, an electric reactor, and a support. The casing has a receiving cavity inside. The casing includes a first wall plate, and the first wall plate has a first air inlet communicating with the receiving cavity. The support is fixedly connected to the electric reactor and the first wall plate, and at least partially located between the electric reactor and the first wall plate to separate the electric reactor from the first wall plate to form a ventilation gap. The vertical projection of the electric reactor on the first wall plate at least partially overlaps the first air inlet, and the ventilation gap communicates with the first air inlet.

[0008] The air conditioner outdoor unit of the present application can make the external gas enter the cavity through the air inlet under the action of the fan of the air conditioner outdoor unit and be discharged from the air outlet. Since the electrical box assembly is arranged in the cavity, the air flow can carry away the heat generated by the electrical box assembly during the flow of the air flow, thereby cooling the electrical box assembly.

[0009] Specifically, when the electrical box assembly is cooled, the reactor outside the containing cavity and the electrical components inside the containing cavity need to be cooled at the same time. When the electrical components inside the containing cavity are cooled, the airflow enters the containing cavity through the first air inlet and then is discharged to the outside of the containing cavity. In the process of flowing, the airflow contacts the electrical components inside the containing cavity, thereby taking away the heat on the electrical components inside the containing cavity.

[0010] When the reactor outside the containing cavity is cooled, the airflow passes through the surface of the reactor to take away the heat generated by the reactor. Since the reactor and the first wall plate have a ventilation gap therebetween, when the airflow passes through the reactor, part of the airflow enters the ventilation gap. At this time, the airflow can contact the side of the reactor adjacent to the first wall plate, thereby ensuring that the airflow can contact all positions on the surface of the reactor to increase the contact area between the airflow and the reactor, thereby improving the cooling efficiency of the reactor.

[0011] And since the vertical projection of the reactor on the first wall plate at least partially coincides with the first air inlet, the ventilation gap is in communication with the first air inlet. In this way, the airflow entering the ventilation gap can enter the containing cavity more quickly after cooling the reactor, and then cool the electrical components inside the containing cavity. The airflow circulation efficiency is faster, and thus the cooling efficiency of the electrical components inside the containing cavity can be improved.

[0012] Through the above arrangement, the cooling efficiency of the reactor outside the containing cavity and the electrical components inside the containing cavity is improved respectively. The overall cooling efficiency of the electrical box assembly is improved.

[0013] In some embodiments, the support includes a plurality of protrusions, the protrusions are fixedly connected with the reactor and the first wall plate, and the protrusions are at least partially located between the reactor and the first wall plate to block the reactor and the first wall plate to form the ventilation gap. The plurality of protrusions are arranged around the first air inlet.

[0014] The protrusions of the support protrude towards the first wall plate adjacent to the reactor. The end of the protrusion away from the first wall plate is connected with the reactor, so that the reactor and the first wall plate are blocked to form the ventilation gap, the contact area between the airflow and the reactor is increased, and the cooling efficiency is improved. The plurality of protrusions are arranged around the first air inlet, so that the reactor is connected at the first air inlet. The airflow can enter the first air inlet from the ventilation gap, the airflow circulation efficiency is increased, and the cooling efficiency of the reactor is further improved. At the same time, the airflow enters the containing cavity from the first air inlet, the air intake of the containing cavity is increased, the airflow circulation efficiency of the electrical components inside the containing cavity is improved, and the cooling efficiency of the electrical components inside the containing cavity is improved.

[0015] In some embodiments, a first air outlet is formed on the cabinet and is in communication with the accommodating cavity; the air conditioner outdoor unit further comprises a partition plate arranged in the cavity and separating the cavity into a first chamber and a second chamber, the electrical box assembly is arranged in the first chamber, and the second chamber is used for accommodating a fan of the air conditioner outdoor unit; a ventilation hole is formed on the partition plate and is in communication with the first chamber and the second chamber; the air inlet is in communication with the first chamber, and the air outlet is in communication with the second chamber; and the first air outlet is in communication with the ventilation hole.

[0016] The partition plate divides the cavity into the first chamber and the second chamber, so that wind, snow and other sundries cannot directly enter the second chamber from the air outlet after entering the cavity, thereby avoiding the interference of the wind, snow and other sundries on the electrical box assembly. The first chamber and the second chamber can be in communication through the ventilation hole; the airflow enters the first chamber of the air conditioner outdoor unit through the air inlet, enters the accommodating cavity through the first air inlet of the electrical box assembly, enters the second chamber through the ventilation hole on the partition plate, and is finally discharged from the air conditioner outdoor unit through the air outlet of the second chamber; the airflow thus enters and is discharged from the air conditioner outdoor unit.

[0017] In some embodiments, the cabinet has a second wall plate, the first air outlet is formed on the second wall plate, and the second wall plate has a first gap with the partition plate; the air conditioner outdoor unit comprises a sealing member arranged in the first gap and abutting against the second wall plate and the partition plate, and the sealing member is arranged around the ventilation hole.

[0018] The sealing member blocks the passage from the first gap to the ventilation hole, prevents the airflow from being discharged from the first chamber through the ventilation hole without passing through the accommodating cavity, and enables the airflow to pass through the accommodating cavity for secondary heat exchange with the electrical devices in the accommodating cavity, thereby taking away more heat and further improving the heat dissipation efficiency of the electrical box.

[0019] In some embodiments, a second air inlet in communication with the accommodating cavity is further formed on the second wall plate.

[0020] The airflow can flow from the surface of the electrical reactor, enter the accommodating cavity through the first gap and the second air inlet, thereby increasing an air inlet passage of the accommodating cavity and increasing the air inlet amount of the accommodating cavity; more airflow can flow through the surface of the electrical device assembly in the accommodating cavity, thereby taking away more heat and improving the heat dissipation efficiency of the electrical device assembly in the accommodating cavity.

[0021] In some embodiments, the air conditioner outdoor unit further comprises a baffle fixed to the partition plate and having a second gap with the partition plate, and the baffle has a normal projection on the partition plate at least partially coinciding with the ventilation hole.

[0022] The baffle can block the wind, snow or other sundries from entering the cavity through the ventilation hole after entering the cavity from the air outlet, thereby avoiding the wind, snow or other sundries from affecting the stable operation and safety performance of the electrical box assembly.

[0023] In some embodiments, the electric appliance box assembly comprises a heat dissipation pipe, which is arranged outside the accommodating cavity and fixed to the first wall plate.

[0024] The heat dissipation pipe is connected to the heat exchanger, and the refrigerant can flow through the heat dissipation pipe, the temperature of the refrigerant is lower than the temperature of the air flow, and the refrigerant can exchange heat with the air flow to reduce the temperature of the air flow flowing through the electric appliance box assembly, so that more heat can be taken away when the air flow exchanges heat with the electric appliance box assembly, and the heat dissipation efficiency of the electric appliance box assembly is improved.

[0025] In some embodiments, the first wall plate is further provided with a through hole; the electric appliance box assembly further comprises a driving plate assembly and a heat conduction plate, which are arranged in the accommodating cavity; the heat conduction plate is fixed to the through hole, and one side of the heat conduction plate is fixedly connected with the driving plate assembly, and the other side of the heat conduction plate is fixedly connected with the heat dissipation pipe.

[0026] Among various components of the air conditioner outdoor unit, the heat generation of the driving plate assembly is only inferior to the electric reactor, the temperature of the heat dissipation pipe is lower than that of the heat conduction plate, and the temperature of the heat conduction plate is lower than that of the driving plate assembly; the driving plate assembly transmits the generated heat to the heat conduction plate, and the heat conduction plate transmits the heat to the heat dissipation pipe, so as to complete the heat dissipation of the driving plate assembly and the electric appliance box assembly.

[0027] In some embodiments, the electric reactor is provided with an air duct, one end of the air duct is communicated with the ventilation gap, and the other end of the air duct is communicated with the inlet.

[0028] The air flow can contact the electric reactor through the air duct, so as to increase the heat exchange area between the air flow and the electric reactor and improve the heat dissipation efficiency of the electric reactor. In addition, since the air duct is arranged on the electric reactor, when the air flow enters the ventilation gap through the air duct, a part of the air flow also enters the accommodating cavity through the first air inlet, so that the air flow entering the accommodating cavity is increased, the flow speed of the air flow on the surface of the electric reactor and the driving plate assembly is improved, the heat dissipation efficiency of the electric reactor and the driving plate assembly is improved, and the heat dissipation efficiency of the electric appliance box assembly is improved.

[0029] In a second aspect, the embodiments of the present application provide an air conditioning system, which comprises an air conditioner indoor unit and an air conditioner outdoor unit according to the above description, and the air conditioner outdoor unit is connected with the air conditioner indoor unit.

[0030] The air conditioning system provided by the embodiments of the present application can achieve the same beneficial effects because it comprises the air conditioner outdoor unit in any of the above technical solutions. BRIEF DESCRIPTION OF DRAWINGS

[0031] The accompanying drawings are used to further understand the technical solutions of the present application, and constitute a part of the specification, and are used to explain the technical solutions of the present application together with the embodiments of the present application, and do not constitute a limitation on the technical solutions of the present application.

[0032] Figure 1 A structure schematic diagram of an air conditioning system provided by an embodiment of the present application.

[0033] Figure 2 A structure schematic diagram of an air conditioning system provided by an embodiment of the present application.

[0034] Figure 3 A structure schematic diagram of an air conditioning outdoor unit provided by an embodiment of the present application.

[0035] Figure 4 A structure schematic diagram of an electric appliance box assembly provided by an embodiment of the present application.

[0036] Figure 5 A structure schematic diagram of an electric appliance box assembly provided by an embodiment of the present application.

[0037] Figure 6 A structure schematic diagram of a driving board assembly provided by an embodiment of the present application.

[0038] Figure 7 A structure schematic diagram of an electric appliance box assembly provided by an embodiment of the present application.

[0039] Figure 8 A partial sectional view of an air conditioning outdoor unit provided by an embodiment of the present application, wherein the first part of air flow is A, the second part of air flow is B, and the third part of air flow is C.

[0040] Figure 9 A structure schematic diagram of an air conditioning outdoor unit provided by an embodiment of the present application.

[0041] Figure 10 A structure schematic diagram of a sealing member provided by an embodiment of the present application.

[0042] Figure 11 A partial sectional view of an air conditioning outdoor unit provided by an embodiment of the present application, wherein D is the flow path of air in the return air duct.

[0043] Figure 12 A structure schematic diagram of an electric appliance box assembly provided by an embodiment of the present application, wherein the first part of air flow is A, the second part of air flow is B, the third part of air flow is C, and the fourth part of air flow is E.

[0044] Reference signs:

[0045] An air conditioning system 100;

[0046] An air conditioning outdoor unit 1;

[0047] A housing 10; a right side plate 101; a front side plate 102; an air inlet 103; an air outlet 104;

[0048] cavity 11; first chamber 111, second chamber 112;

[0049] fan 20;

[0050] electrical box assembly 30;

[0051] casing 31; accommodating cavity 311; first wall plate 312; through hole 3121, body 313; cover plate 314; first air inlet 315; second air inlet 316; second wall plate 317; first air outlet 318; third air inlet 319;

[0052] reactor 32; air duct 321;

[0053] drive plate assembly 33; drive plate 331; power module 3311; on-board electrical device 3312; drive plate support 332; assembly hole 3321;

[0054] main control board 34;

[0055] support 35; protrusion 351; fixing seat 352;

[0056] ventilation gap 36;

[0057] heat dissipation pipe 37;

[0058] heat conduction plate 38;

[0059] second heat exchanger 40; condenser 41;

[0060] compressor 50;

[0061] partition 60; ventilation hole 601; first gap 61;

[0062] seal 70; sealing ring 71; sealing groove 72; sealing gasket 73;

[0063] baffle 80; second gap 81;

[0064] air conditioner indoor unit 2; shell 21; first heat exchanger 22; evaporator 23. DETAILED DESCRIPTION

[0065] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0066] It should be noted that all the direction indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative position relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the direction indications will also change accordingly.

[0067] The terms "first", "second", "third", etc. are used only for descriptive purposes and should not be construed as indicating or implying relative importance or an indicated number of technical features. Therefore, the features defined as "first", "second", etc. can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified and limited, the term "a plurality of" means two or more.

[0068] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "connected" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. In addition, when describing the pipeline, the "connected" and "connected" used in the present application have the meaning of conducting. The specific meaning needs to be understood in combination with the context.

[0069] In the embodiments of the present application, the words such as "exemplary" or "for example" are used to represent as an example, illustration or description. Any embodiment or design scheme described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as more preferred or more advantageous than other embodiments or design schemes. Rather, the words such as "exemplary" or "for example" are intended to present the relevant concept in a specific manner.

[0070] As a kind of common household appliance, air conditioner is widely used in daily life, based on this, as shown in Figure 1 The present application provides an air conditioning system 100, comprising an air conditioner outdoor unit 1 and an air conditioner indoor unit 2, the air conditioner outdoor unit 1 and the air conditioner indoor unit 2 are connected, and the air conditioner outdoor unit 1 and the air conditioner indoor unit 2 are matched to realize the adjustment of indoor air temperature.

[0071] Exemplarily, as shown in Figure 2 And Figure 3 The air conditioner indoor unit 2 comprises a shell 21, a first heat exchanger 22 is arranged inside the shell 21, the air conditioner outdoor unit 1 comprises a shell 10, a fan 20, a second heat exchanger 40 and a compressor 50, a cavity 11 is formed inside the shell 10, an air inlet 103 and an air outlet 104 communicating with the cavity 11 are formed on the shell 10, for example, the shell 10 comprises a right side plate 101 and a front side plate 102, the air inlet 103 is formed on the right side plate 101, and the air outlet 104 is formed on the front side plate 102; The second heat exchanger 40 and the compressor 50 are located in the cavity 11.

[0072] Through the above arrangement, the indoor temperature is adjusted by cooperation between the first heat exchanger 22, the second heat exchanger 40, the fan 20 and the compressor 50.

[0073] Continuing to refer to Figure 2 , for example, when the air conditioning system 100 cools in summer, the first heat exchanger 22 serves as the evaporator 23, the second heat exchanger 40 serves as the condenser 41, the inlet of the compressor 50 is communicated with the outlet of the evaporator 23, the outlet of the compressor 50 is communicated with the inlet of the condenser 41, and the outlet of the condenser 41 is communicated with the inlet of the evaporator 23.

[0074] Through the above arrangement, the liquid refrigerant entering the evaporator 23 absorbs the heat of the room, so that the temperature of the room is reduced, and cooling is achieved. At the same time, the liquid refrigerant is converted into gaseous refrigerant due to the absorption of heat, and then is discharged from the outlet of the evaporator 23 and enters the compressor 50. In the compressor 50, the gaseous refrigerant is compressed into high-pressure gaseous refrigerant, which is then discharged from the outlet of the compressor 50 to the condenser 41. In the condenser 41, the gaseous refrigerant is condensed and releases heat, which is discharged to the air around the condenser 41. At this time, under the action of the fan 20, the hot air is discharged to the outside, and at the same time, the gaseous refrigerant is converted into liquid refrigerant and enters the evaporator 23 again to circulate, so as to continuously cool the room.

[0075] Exemplarily, a filter device can be arranged at the air inlet 103 or a rotary air duct can be formed, so that wind and snow or other sundries are prevented from entering the cavity 11 through the air inlet 103, and external sundries are prevented from contacting the fan 20, the second heat exchanger 40 and other components, so as to ensure the stable operation and safety performance of the air conditioner outdoor unit 1.

[0076] On this basis, in order to control the fan 20, the first heat exchanger 22, the second heat exchanger 40 and the compressor 50, please continue to refer to Figure 3 , the air conditioner outdoor unit 1 provided by the present application further comprises an electrical box assembly 30 arranged in the cavity 11. As shown in Figure 4 , the electrical box assembly 30 comprises a shell 31, an electric reactor 32, a drive board assembly 33 and a main control board 34. The shell 31 has an accommodating cavity 311 formed therein, the electric reactor 32 is arranged outside the shell 31, for example, can be fixed on the outer wall of the shell 31, and the drive board assembly 33 and the main control board 34 are arranged in the accommodating cavity 311.

[0077] In this way, the electric reactor 32, the drive board assembly 33 and the main control board 34 can be cooperated with each other to control the fan 20, the first heat exchanger, the second heat exchanger 40 and the compressor 50, so as to achieve cooling or heating.

[0078] Meanwhile, the housing 31 can also integrate the reactor 32, drive board assembly 33, and main control board 34 together, facilitating inspection and maintenance. Furthermore, the housing 31 protects the drive board assembly 33 and main control board 34 installed inside the housing 31, preventing wind, snow, or other foreign objects from contacting them and ensuring the stability of equipment operation.

[0079] It is understandable that the reactor 32 is placed outside the housing 31 to save internal space in the housing 311, and also because the reactor 32 generates a lot of heat, so it is necessary to facilitate heat dissipation of the reactor 32.

[0080] In some embodiments, in order to house the drive board assembly 33 within the receiving cavity 311, such as Figure 5 and Figure 6 As shown, the housing 31 also includes a first wall panel 312. The drive plate assembly 33 includes a drive plate 331 and a drive plate bracket 332. The drive plate 331 and the drive plate bracket 332 are located in the receiving cavity 311. The drive plate 331 and the drive plate bracket 332 are connected. The drive plate bracket 332 is connected to the first wall panel 312.

[0081] With the above configuration, the drive plate 331 controls components such as the fan 20, the first heat exchanger 22, and the second heat exchanger 40, and the drive plate 331 is fixed to the first wall plate 312 using the drive plate bracket 332. This achieves the goal of fixing the drive plate assembly 33 within the receiving cavity 311.

[0082] For example, the drive board 331 may include a power module 3311 located on the side of the drive board 331 adjacent to the first wall panel 312 and an onboard electrical device 3312 located on the other side of the drive board 331 away from the first wall panel 312. The cooperation between the power module 3311 and the onboard electrical device 3312 enables the control of components such as the fan 20, the first heat exchanger 22, and the second heat exchanger 40.

[0083] Based on this, in order to ensure the stable operation of the power module 3311 and the onboard electrical components 3312, the drive board bracket 332 can be made of insulating material. This can isolate the drive board 331 from the first wall panel 312. When the drive board 331 leaks current, the current will not be conducted to the electrical box assembly 30 through the first wall panel 312, thereby improving the safety performance of the electrical box assembly 30.

[0084] Based on this, the drive board assembly 33 may malfunction during operation. In order to facilitate its maintenance, the housing 31 provided in this application includes a body 313 and a cover plate 314. The body 313 defines a receiving cavity 311, and the cover plate 314 rotates to cover the opening of the body 313. The main control board 34 is fixedly connected to the side of the cover plate 314 away from the drive board 331.

[0085] Exemplarily, the left side of the cover plate 314 is connected with the body 313 through a hinge, so as to realize the rotation opening and closing, and facilitate the installation and maintenance of the drive plate 331. The right side of the cover plate is connected with the body 313 through a clamping jaw, and a screw hole is arranged on the clamping jaw and the body 313, and the clamping jaw and the body 313 are fixedly connected through a screw.

[0086] In this way, when the drive plate assembly 33 needs to be repaired due to failure, the screw connecting the clamping jaw and the body 313 is removed, the cover plate 314 can be rotated to open the opening, and at this time the drive plate assembly 33 is exposed to the outside and can be repaired. By dividing the casing 31 into two parts, the installation, disassembly and maintenance of the drive plate assembly 33 are facilitated.

[0087] The reactor 32, the drive plate assembly 33 and the main control plate 34 will generate a large amount of heat in the working process. If the above three cannot be cooled in time, the temperature of the above three may be increased, the resistance is increased, and the working state of the above three is unstable, and even short circuit and carbonization of the circuit board may occur, which shortens the service life of the reactor 32, the drive plate assembly 33 and the main control plate 34, reduces the safety of the reactor 32, the drive plate assembly 33 and the main control plate 34, and thus shortens the service life of the air conditioner outdoor unit 1 and reduces the safety of the air conditioner outdoor unit 1. Therefore, the reactor 32, the drive plate assembly 33 and the main control plate 34 need to be cooled.

[0088] In the related art, in order to cool the reactor 32, the drive plate assembly 33 and the main control plate 34, an air inlet hole and an air outlet hole are arranged on the casing 31, and the airflow generated by the fan of the air conditioner outdoor unit 1 flows through the inside of the electrical box assembly 30 through the air inlet hole and the air outlet hole, so as to cool the drive plate assembly 33 and the main control plate 34. At the same time, since the airflow can pass through the surface of the reactor 32, the airflow can also carry away the heat generated by the reactor 32.

[0089] However, due to the unreasonable arrangement of the air inlet hole and the air outlet hole and the reactor 32, the contact area between the airflow and the reactor 32 is small, and the flow rate loss of the airflow entering the inside of the electrical box assembly 30 is large, so that the overall cooling efficiency of the electrical box assembly 30 is low.

[0090] Based on this, as Figure 7 and Figure 8As shown, the electric appliance box assembly 30 provided by the present application further comprises a support 35, the cabinet 31 comprises a first wall plate 312, and the first wall plate 312 is provided with a first air inlet 315 which is in communication with the accommodating cavity 311. The electric reactor 32 is arranged outside the cabinet 31 and is generally fixed to the outer wall of the cabinet 31. The support 35 is fixed between the electric reactor 32 and the first wall plate 312, and the electric reactor 32 and the first wall plate 312 have a ventilation gap 36 therebetween. Moreover, the vertical projection of the electric reactor 32 on the first wall plate 312 at least partially overlaps the first air inlet 315.

[0091] Through the above arrangement, under the action of the fan 20 of the air conditioner outdoor unit 1, the external gas can enter the cavity 11 through the air inlet 103 and be discharged from the air outlet 104. Since the electric appliance box assembly 30 is arranged in the cavity 11, the gas flow can carry away the heat generated on the electric appliance box assembly 30 in the process of gas flow, so as to cool the electric appliance box assembly 30.

[0092] Specifically, when cooling the electric appliance box assembly 30, the drive board assembly 33 and the main control board 34 inside the accommodating cavity 311 and the electric reactor 32 outside the accommodating cavity 311 need to be cooled at the same time. When cooling the drive board assembly 33 and the main control board 34 inside the accommodating cavity 311, the gas flow enters the inside of the accommodating cavity 311 through the first air inlet 315 and is then discharged to the outside of the accommodating cavity 311. In the process of flow, the gas flow contacts the drive board assembly 33 and the main control board 34 inside the accommodating cavity 311, so as to carry away the heat on the drive board assembly 33 and the main control board 34 inside the accommodating cavity 311.

[0093] When cooling the electric reactor 32 outside the accommodating cavity 311, the gas flow passes through the surface of the electric reactor 32 to carry away the heat generated by the electric reactor 32. Since the electric reactor 32 and the first wall plate 312 have the ventilation gap 36 therebetween, when the gas flow passes through the electric reactor 32, part of the gas flow enters the ventilation gap 36. At this time, the gas flow can contact the side of the electric reactor 32 adjacent to the first wall plate 312, so as to ensure that the gas flow can contact all positions on the surface of the electric reactor 32, thereby increasing the contact area between the gas flow and the electric reactor 32 and improving the heat dissipation efficiency of the electric reactor 32.

[0094] Moreover, since the vertical projection of the electric reactor 32 on the first wall plate 312 at least partially overlaps the first air inlet 315, the ventilation gap 36 is in communication with the first air inlet 315. In this way, the gas flow entering the ventilation gap 36 can enter the accommodating cavity 311 more quickly after cooling the electric reactor 32, so as to cool the drive board assembly 33 and the main control board 34 inside the accommodating cavity 311. The gas flow circulation efficiency is faster, so as to improve the heat dissipation efficiency of the drive board assembly 33 and the main control board 34 inside the accommodating cavity 311.

[0095] The reactor 32 has an air duct 321, one end of the air duct 321 is communicated with the ventilation gap 36, and the other end of the air duct 321 is communicated with the air inlet 103. In this way, the airflow passes through the air duct 321 and enters the ventilation gap 36 during the flow process. During the airflow passing through the air duct 321, the airflow contacts the inner wall of the air duct 321 (the reactor 32), thereby increasing the heat exchange area between the airflow and the reactor 32, and further improving the heat dissipation efficiency of the reactor 32.

[0096] Exemplarily, the reactor 32 is a circular ring structure composed of a coil winding, and the hollow part in the middle forms the air duct 321, which facilitates the airflow to pass through the air duct 321 of the reactor 32, thereby dissipating heat for the coil winding generating heat during operation.

[0097] In addition, since the reactor 32 has the air duct 321, when the airflow enters the ventilation gap 36 through the air duct 321, a part of the airflow also enters the inside of the containing cavity 311 through the first air inlet 315. In this way, the airflow into the containing cavity 311 is increased, the flow rate of the airflow on the surface of the reactor 32 and the drive board assembly 33 is improved, and the heat dissipation efficiency of the reactor 32, the drive board assembly 33 and the electric appliance box assembly 30 is improved.

[0098] Exemplarily, continuing to refer to Figure 7 The support 35 can include a plurality of protrusions 351, at least one protrusion 351 is fixedly connected with the reactor 32, and the remaining protrusions 351 can be fixedly connected with the reactor 32 or abut against the reactor 32 and are fixedly connected with the first wall plate 312. The plurality of protrusions 351 are arranged around the first air inlet 315. The protrusion 351 can protrude from the first wall plate 312 to the direction adjacent to the reactor 32, and the end of the protrusion 351 away from the first wall plate 312 is connected with the reactor 32.

[0099] The plurality of protrusions 351 are used to support the reactor 32 to form the ventilation gap 36, so that the side of the reactor 32 adjacent to the first wall plate 312 can contact the airflow, thereby increasing the contact area between the airflow and the reactor 32 and improving the heat dissipation efficiency. At the same time, the airflow can enter the first air inlet 315 from the ventilation gap 36, thereby reducing the flow rate loss of the airflow entering the inside of the containing cavity 311 and improving the heat dissipation efficiency of the reactor 32. Finally, the heat dissipation efficiency of the electric appliance box assembly 30 is improved.

[0100] Exemplarily, in order to fix the protrusions 351 on the first wall plate 312, a first threaded hole is formed on the first wall plate 312, and a second threaded hole is formed on each protrusion 351 and penetrates the protrusion 351, and a fastener such as a screw is sequentially inserted through the first threaded hole and the second threaded hole to fix the protrusion 351 on the first wall plate 312. On this basis, the support 35 further comprises a fixing seat 352. The fixing seat 352 is fixed between the first wall plate 312 and the protrusions 351, and the reactor is fixed on the first wall plate by means of the protrusions 351 and the fixing seat 352.

[0101] Exemplarily, the reactor 32 is mounted on the fixing seat 352 of the reactor 32 by means of the protrusions 351, and is mounted on the first wall plate 312 by means of screws, rivets, welding, etc.

[0102] By fixing the fixing seat 352 between the protrusions 351 and the first wall plate 312, the distance between the reactor 32 and the first wall plate 312 is further increased, the ventilation gap 36 is widened, the air flow through the reactor 32 is further increased, and the heat dissipation efficiency of the reactor 32 is further improved.

[0103] In some embodiments, as shown in Figure 9 The air conditioner outdoor unit 1 further comprises a partition plate 60, which is arranged in the cavity 11 and divides the cavity 11 into a first chamber 111 and a second chamber 112. The electrical box assembly 30 is arranged in the first chamber 111, and the second chamber 112 is used to accommodate the fan 20 of the air conditioner outdoor unit 1. The partition plate 60 is provided with a ventilation hole 601, which communicates the first chamber 111 and the second chamber 112. The air inlet 103 communicates with the first chamber 111, and the air outlet 104 communicates with the second chamber 112.

[0104] In this way, the first chamber 111 and the second chamber 112 can only communicate through the ventilation hole 601, avoiding opening multiple holes on the partition plate 60. In this way, the probability of wind and snow or other sundries entering the first chamber 111 from the second chamber 112 through the holes formed on the partition plate 60 can be reduced. The influence of wind and snow and other sundries on the electrical box assembly 30 can be avoided, and the normal work of the electrical box assembly 30 can be ensured.

[0105] Continuing to refer to Figure 7 and Figure 8 The shell 31 comprises a second wall plate 317. The first air outlet 318 is formed on the second wall plate 317. The second wall plate 317 is parallel to the right side plate 101 and adjacent to the first wall plate 312, and is located on the side of the electrical box assembly 30 adjacent to the partition plate 60. The second wall plate 317 has a first gap 61 with the partition plate 60, and is further provided with a second air inlet 316. Air flow can enter the accommodating cavity 311 of the shell 3110 from the second air inlet 316.

[0106] On this basis, please continue to refer to Figure 8 , the air conditioner outdoor unit 1 includes a seal 70, the seal 70 is provided in the first gap 61, and is respectively in abutment with the second wall plate 317 and the partition plate 60, and the seal 70 is provided around the ventilation hole 601. The seal 70 can communicate the first air outlet 318 and the ventilation hole 601, so that the airflow can enter the second chamber 112 through the ventilation hole 601 from the first air outlet 318 without leakage.

[0107] The airflow can enter the second air inlet 316 through the first gap 61, and then enter the inside of the containing cavity 311. The seal 70 separates the first gap 61, blocks the passage of the airflow from the first gap 61 to the ventilation hole 601, and prevents the airflow from directly passing through the first gap 61 and then entering the first chamber 111 through the ventilation hole 601 without passing through the containing cavity 311, so that the airflow passing through the second air inlet 316 can enter the containing cavity 311 and perform secondary heat exchange with the drive plate assembly 33 and the airflow in the containing cavity 311, and increase the airflow into the containing cavity 311, carry away more heat, and further improve the heat dissipation efficiency of the electric appliance box assembly 30.

[0108] Exemplarily, the seal 70 can include a sealing ring 71. One side of the sealing ring 71 is pasted on the circumference of the first air outlet 318, and the other side is pasted on the circumference of the ventilation hole 601. The sealing ring 71 can separate the first gap 61, block the passage of the airflow from the first gap 61 to the ventilation hole 601, and prevent the airflow from passing through the first gap 61 and then entering the first chamber 111 through the ventilation hole 601 without passing through the containing cavity 311, so that the airflow passing through the second air inlet 316 can enter the containing cavity 311 and perform secondary heat exchange with the drive plate assembly 33 and the main control board 34 in the containing cavity 311 and the airflow, and increase the airflow into the containing cavity 311, carry away more heat, and further improve the heat dissipation efficiency of the electric appliance box assembly 30.

[0109] Alternatively, as shown in Figure 8 and Figure 10 , the seal 70 can include a sealing groove 72 and a sealing pad 73, the sealing groove 72 is provided around the circumference of the first air outlet 318, and the sealing pad 73 is installed in the sealing groove 72 and in abutment with the partition plate 60. The sealing pad 73 can be made of a deformable material such as rubber, and when the sealing pad 73 is in abutment with the partition plate 60, it will deform and generate a restoring force, making the sealing between the sealing pad 73 and the partition plate 60 better.

[0110] Please continue to refer to Figure 3 and Figure 4, in order to improve the heat dissipation effect, the electrical box assembly 30 further comprises a heat dissipation pipe 37, which is arranged outside the accommodating cavity 311 and fixed on the first wall plate 312. The heat dissipation pipe 37 is connected with the second heat exchanger 40, and the refrigerant can flow in the heat dissipation pipe 37. The temperature of the refrigerant is lower than that of the air flow, and the refrigerant can exchange heat with the air flow to reduce the temperature of the air flow flowing through the electrical box assembly 30, so that more heat can be taken away when the air flow exchanges heat with the electrical box assembly 30, thereby improving the heat dissipation efficiency of the electrical box assembly 30.

[0111] The heat dissipation pipe 37 is connected with the second heat exchanger 40 of the air conditioner outdoor unit 1, and the heat dissipation pipe 37 contains refrigerant. The refrigerant can flow through the second heat exchanger 40, and the second heat exchanger 40 reduces the temperature of the refrigerant to take away the heat exchanged by the refrigerant and the electrical box assembly 30, so that the temperature of the refrigerant flowing through the electrical box assembly 30 again is still much lower than that of the electrical box assembly 30, thereby enabling the refrigerant to better exchange heat and improving the heat dissipation efficiency of the electrical box assembly 30.

[0112] On this basis, continuing to refer to Figure 5 and Figure 6 , the electrical box assembly 30 further comprises a drive board assembly 33 and a heat conduction plate 38. The drive board assembly 33 is arranged in the accommodating cavity 311, and a through hole 3121 is formed in the first wall plate 312. The heat conduction plate 38 is fixed at the through hole 3121, and one side of the heat conduction plate 38 is fixedly connected with the drive board assembly 33, and the other side of the heat conduction plate 38 is fixedly connected with the heat dissipation pipe 37. An assembly hole 3321 is formed in the drive board support 332. A power module 3311 is arranged on one side of the drive board 331 close to the drive board support 332, and a board-mounted electrical component 3312 is arranged on the other side of the drive board 331 away from the drive board support 332. The power module 3311 on the drive board 331 is connected with the heat conduction plate 38 through the assembly hole 3321 and the through hole 3121 in the first wall plate 312, and the board-mounted electrical component 3312 is located in the accommodating cavity 311.

[0113] Through the above arrangement, the heat generated by the power module 3311 can finally reach the heat dissipation pipe 37 through the heat conduction plate 38, and the heat dissipation pipe 37 can take away the heat in the flowing process, thereby achieving heat dissipation of the power module 3311. The board-mounted electrical component 3312 is in contact with the air flow flowing in the accommodating cavity 311 to achieve heat dissipation.

[0114] It can be understood that the temperature of the heat dissipation pipe 37 is lower than that of the heat conduction plate 38, the temperature of the heat conduction plate 38 is lower than that of the power module 3311 of the drive board assembly 33, the power module 3311 of the drive board assembly 33 conducts heat to the heat conduction plate 38, the heat conduction plate 38 conducts heat to the heat dissipation pipe 37, the heat is taken away with the refrigerant flowing in the heat dissipation pipe 37, and the heat dissipation of the power module 3311 of the drive board assembly 33 is completed.

[0115] With continued reference to Figure 8 , the outside air of the air conditioner outdoor unit 1 enters the first chamber 111 from the air inlet 103 of the shell, and the air flow exchanges heat with the heat dissipation pipe 37 for the first time in the first chamber 111, and the heat in the air flow is transferred to the heat dissipation pipe 37; the first part of the air flow (such as part A in Figure 8 ) enters the containing cavity 311 in turn through the surface of the reactor 32, the ventilation gap 36 between the reactor 32 and the first wall plate 312, and the first air inlet 315; the second part of the air flow (such as part B in Figure 8 ) enters the containing cavity 311 in turn through the surface of the reactor 32, the first gap 61 between the baffle 60 and the second wall plate 317, and the second air inlet 316; the third part of the air flow (such as part C in Figure 8 ) enters the containing cavity 311 in turn through the surface of the reactor 32, the air duct 321 of the reactor 32, the ventilation gap 36, and the first air inlet 315; the three parts of the air flow exchange heat with the reactor 32 for the second time when flowing through the reactor 32, and the heat generated by the reactor 32 is taken away, thereby achieving the effect of dissipating heat for the reactor 32.

[0116] The air flow enters the containing cavity 311 and exchanges heat with the on-board electrical device 3312 for the third time, taking away the heat generated by the on-board electrical device 3312. The air flow enters the second chamber 112 in turn through the first air outlet 318 on the second side plate, the sealing member 70, and the ventilation hole 601 on the baffle 60, and is blown out of the second chamber 112 through the air outlet 104 under the action of the fan 20, thereby completing the heat dissipation for the electrical box assembly 30.

[0117] As shown in Figure 11 , in some embodiments, the air conditioner outdoor unit 1 further comprises a baffle 80 fixed to the baffle 60, and the baffle 80 and the baffle 60 have a second gap 81 therebetween, and the orthogonal projection of the baffle 80 on the baffle 60 at least partially coincides with the ventilation hole 601. The baffle 80 and the baffle 60 can form a rotary air duct, and the flow path of the air in the rotary air duct (such as path D in Figure 11 ) is: the air blown out of the first air outlet 318 blows to the left towards the baffle 80, and under the guidance of the baffle 80, blows forward to the front side plate 102, and then blows backward under the guidance of the baffle 60 and the fan 20.

[0118] In this way, the baffle 80 can increase the difficulty of the wind snow or other foreign matters entering the electrical box assembly 30, block the wind snow or other foreign matters from entering the second chamber from the air outlet 104, and prevent the wind snow or other foreign matters from entering the electrical box assembly 30 through the ventilation hole 601, thereby affecting the stable operation and safety performance of the electrical box assembly 30.

[0119] As shown in Figure 12As shown, in some embodiments, a plurality of third air inlets 319 can be formed on each wall panel of the electrical box assembly 30, increasing the air intake of the accommodating cavity 311, so that the fourth part of the air flow (such as the E part in Figure 12 the fourth part of the air flow can flow through the reactor 32, the third air inlet 319, and then into the accommodating cavity 311, and exchange heat with the drive board assembly 33 and the main control board 34, so that the drive board assembly 33 and the main control board 34 can dissipate heat, thereby improving the heat exchange efficiency of the drive board assembly 33 and the main control board 34 with the air flow, and further improving the heat dissipation efficiency of the electrical box assembly 30.

[0120] In the description of this specification, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0121] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto, any change or replacement within the technical scope disclosed in the present application should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An air conditioner outdoor unit comprising a housing and an electrical box assembly, the housing having a cavity formed therein, the electrical box assembly being disposed within the cavity, the housing having an air inlet and an air outlet formed therein and in communication with the cavity, characterized in that, The electric appliance box assembly comprises: a casing, an accommodating cavity is formed inside the casing, a first air inlet is formed on the casing and communicates with the accommodating cavity, the casing comprises a first wall plate, and the first air inlet is formed on the first wall plate; a first air outlet is formed on the casing and communicates with the accommodating cavity; a reactor, which is arranged outside the casing; a support, which is fixedly connected with the reactor and the first wall plate respectively and at least partially located between the reactor and the first wall plate, separates the reactor and the first wall plate to form a ventilation gap, and the vertical projection of the reactor on the first wall plate at least partially overlaps the first air inlet, and the ventilation gap communicates with the first air inlet; the support comprises a plurality of protrusions, which are fixedly connected with the reactor and the first wall plate and at least partially located between the reactor and the first wall plate, separate the reactor and the first wall plate to form a ventilation gap, and the protrusions are arranged around the first air inlet; a partition plate, which is arranged in the cavity and separates the cavity into a first chamber and a second chamber, the electric appliance box assembly is arranged in the first chamber, the second chamber is used for accommodating a fan of the air conditioner outdoor unit, the partition plate is provided with a ventilation hole, the ventilation hole communicates the first chamber and the second chamber, the air inlet communicates with the first chamber, the air outlet communicates with the second chamber, and the first air outlet communicates with the ventilation hole; the casing comprises a second wall plate, the second wall plate is adjacent to the first wall plate, the first air outlet is formed on the second wall plate, and the second wall plate has a first gap with the partition plate; a sealing member, which is arranged in the first gap and abuts against the second wall plate and the partition plate respectively, is arranged around the ventilation hole; the second wall plate is further provided with a second air inlet which communicates with the accommodating cavity.

2. The outdoor unit of claim 1, wherein The air conditioner outdoor unit further comprises a baffle, the baffle is fixed on the partition plate, the baffle has a second gap with the partition plate, and the orthographic projection of the baffle on the partition plate at least partially overlaps the ventilation hole.

3. The outdoor unit of claim 1, wherein The electric appliance box assembly comprises: a heat dissipation pipe, which is arranged outside the accommodating cavity and fixed on the first wall plate, and is used for communicating refrigerant.

4. The outdoor unit of claim 3, wherein The first wall plate is further provided with a through hole; the electric appliance box assembly further comprises: a driving plate assembly, which is arranged in the accommodating cavity; a heat conduction plate, which is fixed at the through hole and fixedly connected with the driving plate assembly on one side and fixedly connected with the heat dissipation pipe on the other side.

5. The outdoor unit of claim 1, wherein The reactor is provided with an air duct, one end of the air duct communicates with the ventilation gap, and the other end of the air duct communicates with the air inlet.

6. An air conditioning system characterized by comprising: It comprises: an air conditioner indoor unit; an air conditioner outdoor unit, which is the air conditioner outdoor unit according to any one of claims 1-5, and the air conditioner indoor unit is connected with the air conditioner outdoor unit.

Images