Electric control box assembly and heat pump equipment

Abstract

The utility model discloses an electric control box assembly and heat pump equipment, and the electric control box assembly comprises a box body, an electric control element, an air duct shell, a radiator and a reinforcing part. The box body has a mounting port. The electric control element is arranged in the box body; the air duct shell is connected to the outer wall face of the box body and covers the outer portion of the installation opening, a heat dissipation air duct is formed in the air duct shell, and the air duct shell is provided with an air inlet and an air outlet of the heat dissipation air duct; the radiator is connected with the box body and is arranged at the mounting port, and the radiator is partially located in the heat dissipation air channel and is in heat conduction contact with the electric control element; the reinforcing piece is connected with the box body, and the reinforcing piece is arranged on the periphery of the installation opening and can support the radiator. According to the technical scheme, the heat dissipation effect of the electric control box assembly can be improved.

Description

Technical Field

[0001] This application relates to the field of heat pump system technology, and in particular to an electrical control box assembly and a heat pump device. Background Technology

[0002] Heat pump equipment is an energy-saving device that can efficiently utilize low-grade energy, and it has broad application prospects in building heating, industrial waste heat utilization, and new energy fields. Heat pump equipment typically includes an electrical control box assembly, which houses electrical control components. During operation, these components generate a large amount of heat. If heat cannot be effectively dissipated, it will significantly impact the lifespan of the control components, and in severe cases, may even cause a fire.

[0003] In related technologies, the heat dissipation technology of the electrical control box assembly is mainly air cooling, which uses the airflow of the outdoor unit fan to drive the electrical control box assembly to dissipate heat. This heat dissipation method has a poor heat dissipation effect because the condenser is in a high-temperature state during the cooling process, resulting in a high temperature of the drawn-in air. Utility Model Content

[0004] This application provides an electrical control box assembly and a heat pump device, which can improve the heat dissipation effect of the electrical control box assembly.

[0005] In a first aspect, embodiments of this application provide an electrical control box assembly, which includes a housing, an electrical control component, a duct shell, a heat sink, and a reinforcing member. The housing has a mounting opening. The electrical control component is disposed within the housing. The duct shell is connected to the outer wall of the housing and covers the outside of the mounting opening. A heat dissipation duct is formed within the duct shell, and the duct has an air inlet and an air outlet. The heat sink is connected to the housing and disposed at the mounting opening. The heat sink is partially located within the heat dissipation duct and is in thermal contact with the electrical control component. The reinforcing member is connected to the housing and is disposed around the periphery of the mounting opening, supporting the heat sink.

[0006] In some embodiments, the electronic control element includes a module board, and the portion of the heat sink located inside the housing is in thermal contact with the module board.

[0007] In some embodiments, the electronic control element includes a reactor disposed adjacent to the heat sink and on the inner wall surface of the housing opposite to the air duct shell.

[0008] In some embodiments, the heat sink includes a plurality of heat dissipation fins arranged side by side, and a heat dissipation channel is formed between two adjacent heat dissipation fins, the heat dissipation channel being open in the direction from the air inlet to the air outlet.

[0009] In some embodiments, at least two heat sinks are provided, the number of mounting ports corresponds to the number of heat sinks, and one heat sink is correspondingly inserted through one mounting port; wherein, there is one air duct shell, and at least two heat sinks partially extend into the heat dissipation air duct formed by the air duct shell; or, the number of air duct shells corresponds to the number of heat sinks, one air duct shell respectively covers the outside of one mounting port, and a portion of the structure of one heat sink is located within the heat dissipation air duct formed by the corresponding air duct shell.

[0010] In some embodiments, the reinforcement is disposed around the mounting port.

[0011] In some embodiments, the reinforcing member is formed as a reinforcing plate, and the wall thickness of the reinforcing plate is greater than the wall thickness of the housing.

[0012] In some embodiments, the air duct shell includes a connecting skirt with mounting holes. The periphery of the housing located at the mounting opening and the periphery of the radiator are both provided with connecting holes. A connector is connected to the mounting holes and the connecting holes to fix the air duct shell, the radiator, and the housing together.

[0013] Secondly, embodiments of this application provide a heat pump device, which includes a housing, a partition bracket, a condenser, and a fan, as well as an electrical control box assembly as described in any of the above. The housing has an installation cavity; the partition bracket is disposed within the installation cavity and divides the installation cavity into a first space and a second space, and the partition bracket has an opening; the condenser and the fan are disposed within the first space; the housing of the electrical control box assembly is located within the second space, and the air duct shell passes through the opening, wherein the air outlet communicates with the first space, and the air inlet communicates with the second space.

[0014] In some embodiments, a seal is also included, which is annularly disposed around the passage and seals the gap between the outer wall of the duct housing and the inner wall of the passage.

[0015] The electrical control box assembly according to an embodiment of this application includes a housing, electrical control components, a duct shell, a heat sink, and reinforcing members. The housing has a mounting opening, and the heat sink is connected to the housing and disposed at the mounting opening. The duct shell is connected to the outer wall of the housing and covers the outside of the mounting opening. A heat dissipation duct is formed inside the duct shell, with an air inlet and an air outlet. The heat sink is located within the heat dissipation duct and makes thermal contact with the electrical control components. The heat sink and electrical control components exchange heat through contact, increasing the heat exchange area and achieving a heat dissipation effect. Furthermore, the airflow flowing through the heat dissipation duct, from the air inlet to the air outlet, dissipates heat from the electrical control components, further improving heat exchange efficiency. The reinforcing members are disposed around the mounting opening and support the heat sink, ensuring its stability and strengthening the structural strength of the housing, ensuring the overall integrity of the housing structure and preventing deformation of the housing due to the mounting opening. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of an embodiment of the heat pump device of this application;

[0018] Figure 2 for Figure 1 The enlarged view of point A shown in the image;

[0019] Figure 3 for Figure 1 The diagram shows the structure of the electrical control box assembly.

[0020] Figure 4 for Figure 3 An exploded view of the electrical control box assembly shown in the image;

[0021] Figure 5 for Figure 3 The diagram shows the structure of the electronic control components of the electronic control box assembly.

[0022] Figure 6 for Figure 3 A schematic diagram of the structure of one embodiment of the air duct housing and radiator is shown;

[0023] Figure 7 for Figure 3 A schematic diagram of another embodiment of the air duct housing and radiator is shown;

[0024] Figure 8 for Figure 3 The diagram shows a structural schematic of one embodiment of the housing.

[0025] Figure 9 for Figure 8 Another perspective structural schematic diagram of an embodiment of the housing shown in the figure;

[0026] Figure 10 for Figure 3 A structural schematic diagram of another embodiment of the housing is shown in the figure.

[0027] Explanation of icon numbers:

[0028] 1. Heat pump equipment; 10. Electrical control box assembly; 11. Cabinet; 111. Mounting port; 112. Connection hole; 12. Electrical control components; 121. Module board; 122. Reactor; 123. Filter board; 124. Main control board; 125. Fuse; 126. Power terminal block; 127. Expansion board; 13. Air duct shell; 131. Heat dissipation air duct; 1311. Air inlet; 1312. Air outlet; 32. First part; 133. Second part; 134. Connecting skirt; 1341. Mounting hole; 14. Radiator; 141. Heat dissipation fins; 142. Heat dissipation channel; 15. Reinforcing member; 16. Connecting member; 20. Housing; 21. Mounting cavity; 211. First space; 212. Second space; 30. Partition bracket; 31. Exit; 32. Seal; 40. Condenser; 50. Fan.

[0029] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0031] Where the following description relates to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0032] In the description of this application, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. Furthermore, in the description of this application, unless otherwise stated, "multiple" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0034] Heat pump equipment is an energy-saving device that can efficiently utilize low-grade energy. As an environmentally friendly and efficient energy conversion device, it has attracted much attention and has huge development potential, with broad application prospects in building heating, industrial waste heat utilization, and new energy fields. Furthermore, there are many types of heat pump equipment, including air-source heat pump air conditioners and heat pump water heaters. They utilize the working principle of refrigerant compression refrigeration and heat release cycle, using heat sources in the ambient air as a low-temperature heat source. Heat exchange occurs through the condenser or evaporator in a traditional air conditioner, and then the heat energy is released through a circulating heat exchange system. Finally, a water pump circulating heat exchange system transfers the energy into the building to meet users' needs for domestic hot water, underfloor heating, or air conditioning.

[0035] Heat pump equipment typically includes an outdoor unit and an indoor unit. The outdoor unit usually contains an electrical control box assembly, which houses electrical control components. During operation, these components generate a large amount of heat, resulting in a high operating temperature. If heat cannot be effectively dissipated, it will significantly impact the lifespan of the electrical control components, and in severe cases, it can even cause a fire.

[0036] In related technologies, the heat dissipation technology of the electrical control box assembly is mainly air cooling, which uses the airflow of the outdoor unit fan to drive the electrical control box assembly to dissipate heat. This heat dissipation method has a poor heat dissipation effect because the condenser is in a high-temperature state during the cooling process, resulting in a high temperature of the drawn-in air.

[0037] To resolve the above issues, please refer to [link / reference]. Figures 1 to 3 This application proposes a heat pump device 1, which can be an outdoor unit, including a housing 20, a partition bracket 30, a condenser 40, a fan 50, and an electrical control box assembly 10.

[0038] The housing 20 has an installation cavity 21. As a basic component of the outdoor unit of the heat pump equipment 1, the housing 20 plays the role of supporting and protecting other components. Therefore, the housing 20 can be made of materials such as aluminum alloy plate, galvanized plate or stainless steel plate, which gives the housing 20 high structural strength and corrosion resistance, making it suitable for complex outdoor environments that are exposed for a long time.

[0039] A partition bracket 30 is disposed within the mounting cavity 21, dividing the mounting cavity 21 into a first space 211 and a second space 212. The partition bracket 30 has a through-hole 31 for connecting the first space 211 and the second space 212. The partition bracket 30 can be disposed within the housing 20 via a detachable connection such as snap-fit ​​or fastening for easy assembly and disassembly, or via a fixed connection such as screwing or welding to improve its stability. The partition bracket 30 can be manufactured using hot pressing, stamping, injection molding, or other processing methods, and can be formed into a plate-like structure. This prevents water droplets splashed from the rotating fan 50 and external rainwater from entering the second space 212 from the first space 211, thus avoiding any impact on the electrical control box assembly 10. The partition bracket 30 can be made of a material with high resistance and good thermal conductivity, such as aluminum alloy plate, galvanized plate, or stainless steel plate. Alternatively, it can be made of a plastic material with high heat resistance and strength. The material used can be the same as or different from that of the housing 20; this application is not limited to this.

[0040] The fan 50 can be an axial flow fan with large blades, which has the advantages of larger air volume and faster airflow velocity. The condenser 40 is used to condense the compressed refrigerant into a liquid phase and release heat to the surrounding environment through the condensation process.

[0041] Please refer to Figures 3 to 5 The electrical control box assembly 10 includes a housing 11, an electrical control element 12, an air duct shell 13, a heat sink 14, and a reinforcing member 15. The housing 11 has a mounting port 111. The heat sink 14 is connected to the housing 11 and is disposed at the mounting port 111. The air duct shell 13 is connected to the outer wall of the housing 11 and covers the outside of the mounting port 111. A heat dissipation air duct 131 is formed inside the air duct shell 13, and has an air inlet 1311 and an air outlet 1312. The heat sink 14 is partially located inside the heat dissipation air duct 131 and is in thermal contact with the electrical control element 12. The heat sink 14 and the electrical control element 12 increase the heat exchange area through contact heat exchange, thereby achieving the heat dissipation effect. Furthermore, the airflow flowing inside the heat dissipation air duct 131 can dissipate heat from the electrical control element 12 as it flows from the air inlet 1311 to the air outlet 1312, thereby further improving the heat exchange efficiency.

[0042] The electronic control component 12 is housed within the enclosure 11. To protect the electronic control component 12, the enclosure 11 can be made of aluminum alloy, giving it advantages such as high strength, light weight, good hardness, good plasticity, superior explosion-proof performance, and low cost. Alternatively, the enclosure 11 can be made of stainless steel, engineering plastics, or other materials. The enclosure 11 can be rectangular or other shapes, such as cylindrical or irregularly shaped prisms. A regular external structure of the enclosure 11 facilitates assembly with the inner wall of the housing 20 or with the partition bracket 30. An irregular external structure improves compatibility when installed within the housing 20. It is understandable that the housing 11 can be a one-piece molded structure, manufactured through processes such as stretching and bending to improve the overall strength of the housing 11 and reduce assembly steps; of course, the housing 11 can also be a split structure, for example, formed by connecting a cover and a housing together, with connection methods including but not limited to screw connections, snap-fit ​​connections, etc., so as to facilitate the disassembly, assembly and maintenance of components such as the electrical control components 12 inside the housing 11.

[0043] The electrical control component 12 includes a module board 121. The module board 121 can be an integrated unit containing functional modules such as inductors, fan 50 drives, and capacitors, used to control the operation of components such as the fan 50. The module board 121 can also be divided into a frequency converter module board and a fan module board. The frequency converter module board mainly refers to the frequency converter section, which internally includes an inverter, drive circuit, protection devices, etc., capable of converting DC power into AC power with adjustable frequency, thereby adjusting the operating frequency of the compressor motor to achieve precise control of cooling or heating capacity, achieving the dual goals of energy saving and comfort. The fan 50 module board typically includes fan 50 drive circuits and related control logic, used to control the speed of the fans 50 in the indoor and outdoor units of the heat pump equipment 1. It adjusts the airflow according to specific needs, coordinates with the temperature regulation process, and may also have overload protection, speed feedback, and other functions to ensure the stable and efficient operation of the fan 50.

[0044] Since the module board 121 contains components such as capacitors, it generates a lot of heat during operation. Therefore, the part of the heat sink 14 located inside the housing 11 is in thermal contact with the module board 121, so the module board 121 can be effectively cooled by contact heat dissipation, thereby improving the heat exchange efficiency.

[0045] The electronic control component 12 also includes a reactor 122, which is used to balance the phase relationship between current and voltage. Its working principle is to limit the current flow through an inductive resistor, thereby reducing voltage fluctuations. The reactor 122 typically consists of a coil and an iron core. There is a 90-degree phase difference between the current and voltage in the coil. The reactor 122 enables power factor correction and smooth current flow. The reactor 122 is located adjacent to the heat sink 14 and is positioned on the inner wall of the housing 11 opposite to the air duct shell 13. The airflow circulating within the air duct shell 13 can thus dissipate heat from the reactor 122, further improving heat exchange efficiency.

[0046] In addition, the electronic control component 12 also includes a filter board 123, a main control board 124, a fuse 125, a power supply terminal block 126, and an expansion board 127. The filter board 123 primarily ensures the stability and reliability of the electronic control system. For example, the filter board 123 can filter the power supply signal in the electronic control system through a filtering circuit, removing high-frequency noise and interference to ensure the stability and purity of the power supply signal. It can also effectively suppress the impact of electromagnetic interference and power fluctuations on the electronic control system, providing a stable power environment and reducing interference to other electronic components.

[0047] The main control board 124, also known as the motherboard or control system core board, is responsible for the operation management and control of the entire heat pump equipment 1. The main control board 124 typically integrates multiple functional modules such as a microprocessor, memory, signal processing, and communication interfaces. By receiving data from sensors, executing algorithm calculations, and outputting commands, it achieves precise control of key components such as the compressor, fan 50, and electronic expansion valve, including functions such as temperature regulation, mode switching, and fault diagnosis. Specifically, it can monitor various parameters in the system, such as temperature, humidity, pressure, and speed, through set sensors and detectors to obtain real-time data. Based on the monitored data, the main control board 124 controls and adjusts various components of the system, such as starting or stopping motors, adjusting valve openings, and controlling temperature, to achieve automatic operation and stable control of the system.

[0048] Furthermore, the filter board 123, module board 121, and reactor 122 are all located adjacent to the heat sink 14, while the main control board 124, fuse 125, power terminal block 126, and expansion board 127 are located opposite to the heat sink 14. This allows for the stacking of the electronic control components 12 inside the housing 11, reducing the overall volume of the electronic control box assembly 10. In addition, the heat sink 14 can conduct heat to the electronic control components 12, such as the filter board 123, module board 121, and reactor 122, which generate a lot of heat, thus rationally distributing the heat dissipation contact area and effectively improving the heat exchange efficiency.

[0049] Please refer to this again. Figures 1 to 3In some embodiments, the air duct housing 13 includes a first portion 132 and a second portion 133 connected to each other. The first portion 132 of the air duct housing 13 includes a cover, which is connected to one outer wall of the housing 11. The first portion 132 and the second portion 133 are connected to form a heat dissipation air duct 131. The air inlet 1311 is formed in the first portion 132 and away from the second portion 133, and the air outlet 1312 is formed in the second portion 133 and away from the first portion 132. The second portion 133 may partially extend into the first space 211, or the air outlet 1312 may be flush with the passage 31. This application does not limit this.

[0050] Specifically, the condenser 40 and the fan 50 are both located in the first space 211. The air outlet 1312 is connected to the first space 211, and the air inlet 1311 is connected to the second space 212. Since the fan 50 is located in the first space 211, the operation of the fan 50 draws air, causing the first space 211 to generate negative pressure. The fan 50, by rotating, discharges the gas in the first space 211 into the atmosphere through the air outlet 1312. Therefore, the air pressure in the first space 211 is less than the atmospheric pressure. The second space 212 is connected to the atmosphere through the air inlet 1311, and the air pressure in the second space 212 is equal to the atmospheric pressure.

[0051] When the heat pump device 1 is in the installation space, specifically with the first space 211 above and the second space 212 below, when the fan 50 is working, airflow flows from below the casing 20 into the second space 212, and through the outlet 31, flows from the second space 212 to the first space 211, and then flows out of the casing 20 from above, forming an airflow path. The duct shell 13 passes through the outlet 31. After the airflow flows from below the casing 20 into the second space 212, it enters the heat dissipation channel of the duct shell 13, and flows from the air inlet 1311 to the air outlet 1312, and then flows into the first space 211. Thus, the airflow path between the second space 212 and the first space 211 can be connected via the heat dissipation duct 131. The housing 11 of the electrical control box assembly 10 is located in the second space 212, so that the electrical control components 12 can be cooled when the airflow flows into the heat dissipation channel, thereby improving heat exchange efficiency. Furthermore, the air inlet 1311 and the air outlet 1312 can be arranged opposite each other in the vertical direction of the housing 20, or they can be arranged facing the side wall of the housing 20. This application does not limit this.

[0052] In some embodiments, the heat sink 14 includes a plurality of heat dissipation fins 141 arranged side by side, with a heat dissipation channel 142 formed between adjacent heat dissipation fins 141. The heat dissipation channel 142 is open in the direction from the air inlet 1311 to the air outlet 1312. Airflow passing through the heat dissipation channel can contact the plurality of heat dissipation fins 141, increasing the heat dissipation area and thus improving heat exchange efficiency. Furthermore, the hot airflow flowing out from the air outlet 1312 can be evenly distributed by the heat dissipation fins 141, thereby avoiding turbulence. The number and area of ​​the heat dissipation fins 141 can be set according to actual needs to achieve different heat dissipation performance or adapt to different structures of the electrical control box assembly 10, and this application does not limit this.

[0053] The number of heat sinks 14 and air duct housings 13 can be one or more. Corresponding to the number of heat sinks 14, the number of mounting ports 111 can also be one or more. This application does not limit the number of heat sinks 14, air duct housings 13, and mounting ports 111. In one embodiment, as... Figure 6 As shown, at least two heat sinks 14 are provided, and the number of mounting ports 111 corresponds to the number of heat sinks 14. Each heat sink 14 passes through one mounting port 111. When at least two heat sinks 14 are provided, they can dissipate heat from the frequency converter module board and the fan module board of the module board 121 respectively, increasing the thermal contact area between the heat sink 14 and the module board 121, thereby further improving the heat exchange efficiency. There is one air duct shell 13, and at least two heat sinks 14 partially extend into the heat dissipation air duct 131 formed by the air duct shell 13. This ensures the smoothness of the heat dissipation air duct 131 while reducing the manufacturing material of the air duct shell 13, thus lowering production costs.

[0054] In another embodiment, such as Figure 7 As shown, the number of air duct shells 13 corresponds to the number of heat sinks 14. Each air duct shell 13 covers the outside of a mounting port 111. A portion of the structure of a heat sink 14 is located within the heat dissipation air duct 131 formed by the corresponding air duct shell 13, thereby further increasing the heat dissipation contact area and thus improving the heat exchange efficiency.

[0055] Please refer to Figure 7 and Figure 8 The air duct housing 13 also includes a connecting skirt 134, on which mounting holes 1341 are provided. The periphery of the mounting opening 111 on the housing 11 and the periphery of the radiator 14 are both provided with connecting holes 112. The connector 16 connects to the mounting holes 1341 and connecting holes 112 to fix the air duct housing 13, radiator 14, and housing 11 together, ensuring the structural integrity and stability of the electrical control box assembly 10. Of course, the fixing connection method for the air duct housing 13, radiator 14, and housing 11 can also be welding, snap-fitting, etc., and this application does not limit this.

[0056] Please refer to Figures 8 to 10 In some embodiments, the reinforcing member 15 is connected to the housing 11, and the reinforcing member 15 is disposed around the mounting opening 111 and can support the heat sink 14. Specifically, the reinforcing member 15 is disposed around the mounting opening 111, which can enhance the structural strength of the housing 11, ensure the integrity of the housing 11 structure, and prevent the housing 11 from deforming due to the opening of the mounting opening 111.

[0057] It is understandable that the reinforcing member 15 can be located inside the housing 11. When the radiator 14 is fixed to the housing 11, since the reinforcing member 15 is arranged around the mounting opening 111 and the reinforcing member 15 is connected to the periphery of the mounting opening 111 to ensure structural support, the radiator 14 is first connected to the reinforcing member 15, and then fixed to the housing 11 through the connection between the reinforcing member 15 and the periphery of the mounting opening 111. At this time, part of the radiator 14 extends into the housing 11 from the mounting opening 111 and makes thermal contact with the electronic control component 12 inside the housing 11 to dissipate heat. Of course, the reinforcing member 15 can also be located outside the housing 11. Its connection method is also to first connect to the reinforcing member 15, and then fix to the housing 11 through the connection between the reinforcing member 15 and the periphery of the mounting opening 111. At this time, the radiator 14 is located outside the housing 11 and makes thermal contact with the electronic control component 12 inside the housing 11 to dissipate heat.

[0058] Furthermore, the reinforcing member 15 is formed as a reinforcing plate, and the wall thickness of the reinforcing plate is greater than the wall thickness of the box 11. For example, the thickness of the reinforcing plate can be 1.5 to 2.5 times the wall thickness of the box 11. That is, the thickness of the reinforcing plate can be 1.5 times, 2 times, 2.2 times or 2.5 times the wall thickness of the box 11. When the thickness of the reinforcing plate can be 1.5 times the wall thickness of the box 11, the reinforcing plate can be relatively thin and light. When the thickness of the reinforcing plate can be 2.5 times the wall thickness of the box 11, its structural stability is higher and it can better support and fix.

[0059] Please refer to this again. Figures 1 to 3 In some embodiments, a sealing element 32 is also provided inside the housing 20. The material of the sealing element 32 can be a flexible material such as sponge or silicone. The sealing element 32 is arranged around the opening 31 and blocks the gap between the outer wall of the air duct housing 13 and the inner wall of the opening 31. This can close the gap between the outer wall of the air duct housing 13 and the inner wall of the opening 31, improve the sealing performance, prevent dust, sewage and other impurities from entering the housing 11 through the gap, improve the service life of the electrical control components 12 inside the housing 11, and reduce maintenance costs.

[0060] In some embodiments, the electrical control box assembly 10 further includes a connecting wire harness, and the housing 11 is provided with a wiring hole. The connecting wire harness passes through the wiring hole and is electrically connected to the electrical control element 12. The connecting wire harness can be used to transmit electrical signals from other components outside the housing 11 to the electrical control element 12 inside the housing 11.

[0061] The gap at the connection point between the wiring harness and the wiring hole can easily cause the wiring harness to become tangled, and impurities can easily enter the housing 11 through the wiring hole, damaging the electronic control component 12. Therefore, the housing 11 is also equipped with a sealing structure, which at least covers the connection point between the wiring harness and the wiring hole, preventing the wiring harness from undergoing axial displacement and radial rotation. This ensures the normal connection of the wiring harness and also improves the sealing performance of the electronic control box assembly 10, preventing impurities from entering the housing 11 through the wiring hole, thereby ensuring the safety and service life of the electronic control box assembly 10.

[0062] Understandably, the sealing structure can be formed as an insulating rubber ring, which has a relatively simple structure and low cost. While ensuring sealing, it can also provide insulation and protection, preventing electrical sparks at the connection between the wiring harness and the terminal block, and enhancing the insulation and moisture-proof performance of the connection. The sealing structure can also be a PG connector or other structures, and this application does not limit this.

[0063] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this application. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0064] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An electrical control box assembly, used in heat pump equipment, characterized in that, The electrical control box assembly includes: The enclosure has mounting ports; The electronic control components are housed within the enclosure. A duct shell is connected to the outer wall of the housing and covers the outside of the mounting port. A heat dissipation duct is formed inside the duct shell, and the duct has an air inlet and an air outlet. A radiator, connected to the housing and disposed at the mounting port, is partially located within the heat dissipation duct and in thermal contact with the electronic control component; and A reinforcing member is connected to the housing and is disposed around the periphery of the mounting opening to support the radiator.

2. The electrical control box assembly as described in claim 1, characterized in that, The electronic control component includes a module board, and the portion of the heat sink located inside the housing is in thermal contact with the module board.

3. The electrical control box assembly as described in claim 1, characterized in that, The electronic control component includes a reactor, which is disposed adjacent to the heat sink and on the inner wall surface of the housing opposite to the air duct shell.

4. The electrical control box assembly as described in claim 1, characterized in that, The radiator includes a plurality of heat dissipation fins arranged side by side, and a heat dissipation channel is formed between two adjacent heat dissipation fins. The heat dissipation channel is open in the direction from the air inlet to the air outlet.

5. The electrical control box assembly as described in claim 1, characterized in that, The radiator is provided with at least two, and the number of mounting ports corresponds to the number of radiators, with one radiator corresponding to one mounting port; The air duct shell is one, and at least two of the heat sinks partially extend into the heat dissipation air duct formed by the air duct shell. Alternatively, the number of air duct shells corresponds to the number of heat sinks, with one air duct shell covering the outside of one of the mounting ports, and a portion of the structure of one of the heat sinks located within the heat dissipation air duct formed by the corresponding air duct shell.

6. The electrical control box assembly as claimed in claim 1, characterized in that, The reinforcing member is arranged around the mounting port.

7. The electrical control box assembly as described in claim 6, characterized in that, The reinforcing member is formed as a reinforcing plate, and the wall thickness of the reinforcing plate is greater than the wall thickness of the box body.

8. The electrical control box assembly as described in any one of claims 1 to 7, characterized in that, The air duct shell includes a connecting skirt with mounting holes. The periphery of the housing at the mounting opening and the periphery of the radiator are both provided with connecting holes. The connector is connected to the mounting holes and the connecting holes to fix the air duct shell, the radiator and the housing together.

9. A heat pump device, characterized in that, include: The casing has an internal mounting cavity; A partition bracket is disposed within the mounting cavity and divides the mounting cavity into a first space and a second space; the partition bracket is provided with an opening. The condenser and fan are installed within the first space; as well as The electrical control box assembly as described in any one of claims 1 to 8, wherein the housing is located within the second space, the air duct shell passes through the opening, wherein the air outlet communicates with the first space, and the air inlet communicates with the second space.

10. The heat pump device as described in claim 9, characterized in that, It also includes a sealing element, which is circumferentially disposed around the passage and seals the gap between the outer wall of the air duct housing and the inner wall of the passage.

Images