Anti-interference inverter power supply structure

Abstract

The utility model discloses an anti-interference inverter power supply structure, and relates to the technical field of inverters. Comprising a shell, a heat dissipation assembly and a circuit assembly. The shell forms a sealed structure, the heat dissipation assembly comprises a rectangular heat dissipation device and a heat dissipation fan connected to the rectangular heat dissipation device, and the two ends of the rectangular heat dissipation device are connected to the inner walls of the two sides of the shell respectively to form a sealed heat dissipation channel; symmetrical ventilation holes are formed in the two sides, corresponding to the heat dissipation channel, of the shell, and the ventilation holes form a heat dissipation fan installation position used for positioning the heat dissipation fan; the circuit assembly comprises power devices, the power devices are connected to the two sides of the rectangular radiator through connecting assemblies, and heat of the power devices can be output to the outside through the rectangular radiator; and the rectangular radiator is arranged and the radiating fan is connected to the rectangular radiator, so that a sealed radiating channel can be formed between the rectangular radiator and the shell, good grounding is formed, and the anti-interference performance of the equipment can be improved while the radiating efficiency of the equipment is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of inverters, and in particular relates to an anti-interference inverter power supply structure. Background Art

[0002] Inverter power supplies are widely used in modern industry, agriculture, transportation, navigation, and aviation. With the continuous development of power electronics technology, inverter power systems are becoming increasingly high-frequency and high-power. Conducted electromagnetic interference (EMI) generated by the high-frequency switching of switching devices has become a major factor restricting the application of inverter power supplies.

[0003] The main hazards caused by electromagnetic interference include (1) affecting the service life of different power electronic devices; (2) affecting the normal operation of the power electronic equipment itself and the surrounding power electronic equipment; (3) affecting information security and information confidentiality; (4) humans and animals can also be affected by radiated electromagnetic interference. Therefore, how to avoid electromagnetic interference has become an unavoidable and urgent problem to be solved.

[0004] However, existing technologies typically employ a metal shielding cover placed outside the inverter. This hinders the transfer and dissipation of heat generated within the inverter. This prevents the timely dissipation of heat, which in turn causes the inverter to overheat. This temperature increase can lead to short circuits or even damage to components within the inverter, severely impacting the inverter's usability and shortening its service life. Achieving effective electromagnetic interference shielding while ensuring rapid heat transfer remains a pressing technical challenge. Utility Model Content

[0005] The utility model provides an anti-interference inverter power supply structure to solve the problem of avoiding electromagnetic interference and improving heat dissipation efficiency at the same time.

[0006] The technical solution adopted by this utility model is:

[0007] An anti-interference inverter power supply structure includes a housing, a heat dissipation component and a circuit component;

[0008] The shell forms a sealed structure, and the heat dissipation component includes a rectangular radiator and a cooling fan connected to the rectangular radiator. The two ends of the rectangular radiator are respectively connected to the inner walls on both sides of the shell to form a sealed heat dissipation channel; the shell has symmetrical ventilation holes on both sides corresponding to the heat dissipation channel, and the ventilation holes form a cooling fan mounting position for positioning the cooling fan; the circuit component includes a power device, and the power device is connected to both sides of the rectangular radiator through a connecting component, and the heat of the power device can be output to the outside through the rectangular radiator.

[0009] The anti-interference inverter power supply structure of the utility model also has the following additional technical features:

[0010] The rectangular radiator has at least two rows of heat dissipation fins therein, and the heat dissipation fins correspond to the ventilation holes, and can transfer heat to the outside of the ventilation holes through the heat dissipation fins under the blowing action of the heat dissipation fan.

[0011] The connecting component includes a heat-conducting component and a fixing component; the heat-conducting component is connected between the heat dissipation surface of the power device and the rectangular heat sink; the fixing component can be installed between the power device and the rectangular heat sink.

[0012] The heat-conducting component has a plurality of mica sheets arranged between the power device and the outer side of the rectangular heat sink; both sides of the mica sheets are coated with thermal grease, and are connected between the heat dissipation surface of the power device and the rectangular heat sink through the thermal grease.

[0013] The fixing assembly includes a bridge-type fixing member and a fixing bolt, and one fixing bolt is arranged between two pairs of the bridge-type fixing members.

[0014] The circuit assembly further includes a power board, which is arranged above the rectangular heat sink. The pins of the power device can extend into the pin holes of the power board and are fixedly connected to the pin holes.

[0015] The circuit assembly also includes a filter inductor, which is connected to both sides of the rectangular heat sink. Viscous thermal paste is provided between the filter inductor and the rectangular heat sink, and the pins of the filter inductor can be fixedly connected to the power board.

[0016] The shell includes a box body and a cover plate, wherein the box body and the cover plate are connected to form a cavity with a sealed internal structure, and the box body and the cover plate are made of aluminum alloy structure.

[0017] The circuit assembly also includes a capacitor plate, a control board and an integrated filter; the cavity has a first mounting position and a second mounting position distributed on both sides of the box body, the first mounting position is used to connect the capacitor plate, and the second mounting position is used to connect the control board; the integrated filter is connected to one side of the rectangular radiator, and the through-wall hole terminal of the integrated filter can pass through the outside of the shell and be fastened to the shell by a nut.

[0018] The control board is connected to a communication terminal and a debugging terminal; the wiring surfaces of the communication terminal and the debugging terminal can be embedded in one side of the shell and are fastened to the shell by bolts.

[0019] Due to the adoption of the above technical solution, the beneficial effects achieved by the utility model are as follows:

[0020] 1. An anti-interference inverter power supply structure, comprising a housing, a heat dissipation assembly, and a circuit assembly; the housing forms a sealed structure, the heat dissipation assembly comprises a rectangular radiator and a heat dissipation fan connected to the rectangular radiator, the two ends of the rectangular radiator are respectively connected to the inner walls on both sides of the housing to form a sealed heat dissipation channel; the housing has symmetrical ventilation holes on both sides corresponding to the heat dissipation channel, the ventilation holes forming heat dissipation fan mounting positions for positioning the heat dissipation fan; the circuit assembly comprises a power device, the power device is connected to both sides of the rectangular radiator through a connecting assembly, and the heat of the power device can be output to the outside through the rectangular radiator.

[0021] The shell of the present application adopts a sealed structure, which makes the equipment have a higher protection level and can effectively shield the high-frequency signal switch in the shell from generating electromagnetic interference (EMI) to the outside world, and also has better electromagnetic compatibility (EMC). The setting of the rectangular radiator and the cooling fan are connected to the rectangular radiator, which can form a sealed heat dissipation channel between the shell, so that the rectangular radiator is directly in contact with the inner wall surface of the shell to form a good grounding. Such a setting can achieve the goal of improving the heat dissipation efficiency of the equipment while also improving the anti-interference performance of the equipment. In addition, the power device is set on both sides of the rectangular radiator, which can make the heat dissipation surface of the power device fit to the side of the rectangular radiator, further shortening the path of heat conduction, thereby improving the efficiency of heat transfer, effectively reducing the thermal resistance value, and facilitating faster heat dissipation. Furthermore, directly connecting the rectangular radiator to the power device can reduce the occupied volume, and the maintenance cost is lower, easy to repair and replace, and improve the user experience.

[0022] 2. As a preferred embodiment of the present invention, the rectangular radiator has at least two rows of cooling fins, and the cooling fins correspond to the ventilation holes, which can transfer heat through the cooling fins to the outside of the ventilation holes under the blowing action of the cooling fan.

[0023] The rows of cooling fins inside the rectangular radiator can further improve the heat dissipation efficiency, so that the heat generated by the various components inside the inverter can be fully dissipated through the cooling fins inside the rectangular radiator. The heat is gathered in the cooling fins through the closed rectangular radiator, so that the heat can be collected centrally and then further dissipated to the outside through the cooling fins and the fans installed on both sides of the rectangular radiator.

[0024] 3. As a preferred embodiment of the present invention, the connecting assembly includes a heat-conducting assembly and a fixing assembly; the heat-conducting assembly is connected between the heat dissipation surface of the power device and the rectangular heat sink; the fixing assembly can be installed between the power device and the rectangular heat sink.

[0025] By connecting the heat conducting component between the power device and the rectangular heat sink, the heat in the power device can be quickly and efficiently transferred to the rectangular heat sink, which is beneficial to reducing the temperature of the power device and improving the heat dissipation efficiency. By connecting the fixing component between the power device and the rectangular heat sink, the connection strength between the power device and the rectangular heat sink can be further improved, thereby enhancing the heat dissipation stability, so that the heat dissipation surface of the power device can be in close contact with the heat dissipation channel formed by the rectangular heat sink, achieving higher heat transfer efficiency, improving heat dissipation power, and further improving the service life of the inverter and various internal components.

[0026] 4. As a preferred embodiment of the present invention, the thermal conductive component has a plurality of mica sheets arranged between the power device and the outer side of the rectangular heat sink; both sides of the mica sheets are coated with thermal grease and connected between the heat dissipation surface of the power device and the rectangular heat sink through the thermal grease.

[0027] The heat-conducting component includes multiple mica sheets, which can achieve good thermal conductivity, thus facilitating the heat transfer between the power device and the rectangular heat sink, and facilitating the timely diffusion of the heat generated by the power device through the rectangular heat sink, effectively reducing the temperature of the power device and increasing the service life of the power device; in order to further enhance the thermal conductivity of the mica sheet and at the same time strengthen the connection strength between the power device and the rectangular heat sink, thermal grease is applied to both sides of the mica sheet so that the thermal grease is connected between the heat dissipation surface of the power device and the rectangular heat sink, thereby effectively transferring the heat of the power device to the rectangular heat sink through its heat dissipation surface, and dissipating the heat in the power device in a timely manner through the heat dissipation fins and the fan, further improving the heat dissipation efficiency.

[0028] 5. As a preferred embodiment of the present invention, the fixing assembly includes a bridge-type fixing member and a fixing bolt, and a fixing bolt is provided between two pairs of bridge-type fixing members.

[0029] The connection strength between the power device and the rectangular heat sink can be further enhanced by the bridge fixing parts and the fixing bolts. The bridge fixing parts can wrap around both sides of the power device. The fixing bolts arranged between the two oppositely arranged bridge fixing parts can fix the middle of the power device, so that the power device can form a fixed connection with uniform pressure distribution between the power device and the rectangular heat sink, further strengthening the connection between the power device and the rectangular heat sink, thereby improving the rapid and efficient transfer of heat from the power device to the rectangular heat sink. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0031] Figure 1 This is a side view schematic diagram of an anti-interference inverter power supply structure according to one embodiment of the present invention;

[0032] Figure 2 This is a schematic diagram of the installation structure of power devices and filter inductors of an anti-interference inverter power supply structure in one embodiment of the present utility model;

[0033] Figure 3 This is a schematic diagram of the internal structure of an anti-interference inverter power supply structure according to one embodiment of the present invention;

[0034] In the figure,

[0035] 1. Housing; 2. Power board; 3. Control board; 4. Capacitor board; 5. Rectangular heat sink; 6. Power device; 7. Filter inductor; 8. Inlet terminal; 9. Cooling fan; 10. Integrated filter; 11. Communication terminal; 12. Debug terminal; 13. Bridge fixing; 14. Fixing bolt; 15. Mica sheet; 16. Thermal paste; 17. Insulation stud. DETAILED DESCRIPTION

[0036] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0037] In addition, in the description of the present invention, it should be understood that the terms "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0038] In this utility model, unless otherwise expressly specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0039] In the present invention, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "implementation method", "embodiment", "one embodiment", "example" or "specific example" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0040] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in combination with the accompanying drawings by way of examples.

[0041] The utility model relates to an anti-interference inverter power supply structure, such as Figure 1-3 As shown, it includes a shell 1, a heat dissipation component and a circuit component; the shell 1 forms a sealed structure, the heat dissipation component includes a rectangular radiator 5 and a heat dissipation fan 9 connected to the rectangular radiator 5, and the two ends of the rectangular radiator 5 are respectively connected to the inner walls on both sides of the shell 1 to form a sealed heat dissipation channel; the shell 1 opens symmetrical ventilation holes on both sides corresponding to the heat dissipation channel, and the ventilation holes form a heat dissipation fan 9 installation position for positioning the heat dissipation fan 9; the circuit component includes a power device 6, and the power device 6 is connected to both sides of the rectangular radiator 5 through a connecting component, and the heat of the power device 6 can be output to the outside through the rectangular radiator 5.

[0042] The housing 1 of the present application adopts a sealed structure, so that the equipment has a higher protection level, and can effectively shield the high-frequency signal switch in the housing 1 from generating electromagnetic interference (EMI) to the outside world, and also has better electromagnetic compatibility (EMC). The setting of the rectangular radiator 5 and the heat dissipation fan 9 are connected to the rectangular radiator 5, and a sealed heat dissipation channel can be formed between the housing 1, so that the rectangular radiator 5 is directly in contact with the inner wall surface of the housing 1 to form a good grounding. Such a setting can achieve the improvement of the heat dissipation efficiency of the equipment while also improving the anti-interference performance of the equipment. In addition, the power device 6 is arranged on both sides of the rectangular radiator 5, so that the heat dissipation surface of the power device 6 can be attached to the side of the rectangular radiator 5, further shortening the path of heat conduction, thereby improving the efficiency of heat transfer, effectively reducing the thermal resistance value, and facilitating faster heat dissipation. Moreover, directly connecting the rectangular radiator 5 to the power device 6 can reduce the occupied volume, and the maintenance cost is lower, and it is easy to repair and replace, which improves the user experience.

[0043] As a preferred embodiment, the rectangular radiator 5 has at least two rows of heat dissipation fins, and the heat dissipation fins correspond to the ventilation holes, which can transfer heat through the heat dissipation fins to the outside of the ventilation holes under the blowing action of the cooling fan 9.

[0044] The rows of heat dissipation fins inside the rectangular radiator 5 can further improve the heat dissipation efficiency, so that the heat generated by the various components inside the inverter can be fully dissipated through the heat dissipation fins inside the rectangular radiator 5. The heat is gathered in the heat dissipation fins through the sealed rectangular radiator 5, so that the heat can be collected centrally and then further dissipated to the outside through the heat dissipation fins and the fans installed on both sides of the rectangular radiator 5.

[0045] As a preferred embodiment, Figure 3 As shown, the connection component includes a heat-conducting component and a fixing component; the heat-conducting component is connected between the heat dissipation surface of the power device 6 and the rectangular heat sink 5; the fixing component can be installed between the power device 6 and the rectangular heat sink 5.

[0046] By connecting the heat conducting component between the power device 6 and the rectangular heat sink 5, the heat in the power device 6 can be quickly and efficiently transferred to the rectangular heat sink 5, which is beneficial to reducing the temperature of the power device 6 and improving the heat dissipation efficiency. By connecting the fixing component between the power device 6 and the rectangular heat sink 5, the connection strength between the power device 6 and the rectangular heat sink 5 can be further improved, thereby enhancing the heat dissipation stability, so that the heat dissipation surface of the power device 6 can be in close contact with the heat dissipation channel formed by the rectangular heat sink 5, achieving higher heat transfer efficiency, improving heat dissipation power, and further improving the service life of the inverter and various internal components.

[0047] As a preferred embodiment, the heat-conducting component has a plurality of mica sheets 15 arranged between the power device 6 and the outer side of the rectangular heat sink 5; both sides of the mica sheet 15 are coated with thermal grease, and are connected between the heat dissipation surface of the power device 6 and the rectangular heat sink 5 through the thermal grease.

[0048] The heat conducting component includes a plurality of mica sheets 15, which can achieve good thermal conductivity, thereby facilitating the heat transfer between the power device 6 and the rectangular heat sink 5, and facilitating the timely diffusion of the heat generated by the power device 6 through the rectangular heat sink 5, thereby effectively reducing the temperature of the power device 6 and improving the service life of the power device 6; in order to further enhance the thermal conductivity of the mica sheet 15 and at the same time strengthen the connection strength between the power device 6 and the rectangular heat sink 5, thermal grease is applied to both sides of the mica sheet 15, so that the thermal grease is connected between the heat dissipation surface of the power device 6 and the rectangular heat sink 5, thereby effectively transferring the heat of the power device 6 to the rectangular heat sink 5 through its heat dissipation surface, and dissipating the heat in the power device 6 in time through the heat dissipation fins and the fan, thereby further improving the heat dissipation efficiency.

[0049] As a preferred embodiment, Figure 2 As shown, the fixing assembly includes a bridge-type fixing member 13 and a fixing bolt 14 , and a fixing bolt 14 is provided between two pairs of bridge-type fixing members 13 .

[0050] The connection strength between the power device 6 and the rectangular heat sink 5 can be further enhanced by the bridge fixing member 13 and the fixing bolt 14. The bridge fixing member 13 can wrap the two sides of the power device 6. The fixing bolt 14 is arranged between the two oppositely arranged bridge fixing members 13 to fix the middle of the power device 6, so that the power device 6 can form a fixed connection with uniform pressure distribution with the rectangular heat sink 5, further strengthening the connection between the power device 6 and the rectangular heat sink 5, thereby improving the rapid and efficient transfer of heat from the power device 6 to the rectangular heat sink 5.

[0051] As a preferred embodiment, the circuit assembly further includes a power board 2, which is disposed above a rectangular heat sink 5. The pins of a power device 6 can extend into the pin holes of the power board 2 and be fixedly connected to the pin holes. Furthermore, the circuit assembly further includes a filter inductor 7, which is connected to both sides of the rectangular heat sink 5. Viscous thermal paste 16 is disposed between the filter inductor 7 and the rectangular heat sink 5. The pins of the filter inductor 7 can be fixedly connected to the power board 2.

[0052] The power board 2 is mounted above the rectangular heat dissipation channel, while the power device 6 and filter inductor 7 are welded to the bottom of the power board 2, with the power device 6 and filter inductor 7 distributed on either side of the heat dissipation channel. The pins of the power device 6 are welded to the corresponding pin holes on the power board 2. This ensures stable installation of the power board 2, the power device 6, and the filter inductor 7, improving the connection strength while distributing them at different installation locations within the heat dissipation channel formed by the rectangular heat sink 5. This facilitates heat dissipation, reduces the temperature of each component, and thus improves heat transfer efficiency.

[0053] As a preferred embodiment, the housing 1 includes a box body and a cover plate, which are connected to form a cavity with a sealed internal structure. The box body and the cover plate are made of aluminum alloy.

[0054] The box body and the cover plate form a sealed shell 1, which is connected by bolts. The box body and the cover plate are made of aluminum alloy, so that a sealed shell 1 structure is formed inside. The equipment has a high protection level and can effectively shield the high-frequency signal switch in the shell 1 from generating electromagnetic interference (EMI) to the outside world, and has better electromagnetic compatibility (EMC).

[0055] As a preferred embodiment, the circuit assembly also includes a capacitor plate 4, a control board 3 and an integrated filter 10; the cavity has a first mounting position and a second mounting position distributed on both sides of the box, the first mounting position is used to connect the capacitor plate 4, and the second mounting position is used to connect the control board 3; the integrated filter 10 is connected to one side of the rectangular radiator 5, and the through-wall hole terminal of the integrated filter 10 can pass through the outside of the shell 1 and be fastened to the shell 1 by a nut.

[0056] The bottom of the shell 1 in the first and second mounting positions is provided with riveted blind nut columns. The four corners of the capacitor plate 4 and the control board 3 are respectively provided with mounting holes, which correspond to the corresponding blind nut columns on the shell 1. Insulating studs 17 are used to fix them on the riveted blind nut columns at the bottom of the shell 1, thereby strengthening the connection between the capacitor plate 4, the control board 3 and the shell 1.

[0057] The integrated filter 10 is installed on the side of the rectangular radiator 5. The through-wall terminal of the integrated filter 10 passes through the through hole on the shell 1 and is tightened with a nut on the outside of the shell 1. The incoming terminal 8 is fixed to the aluminum alloy shell with bolts.

[0058] An integrated filter 10 is used, and the filter completely fits the gap at the outlet of the housing 1, so that the filter and the housing 1 are conductively integrated and complete, suppressing electromagnetic interference generated by the power line, making the equipment have better EMC performance, high integration and good reliability.

[0059] As a preferred embodiment, the control board 3 is connected to a communication terminal and a debugging terminal 12; the wiring surfaces of the communication terminal 11 and the debugging terminal 12 can be embedded in one side of the housing 1 and fastened to the housing 1 by bolts.

[0060] The external communication interface adopts a plate-type through-wall terminal block, and the external interface of the control board 3 is fully integrated with the chassis, thereby suppressing the electromagnetic interference generated by the signal line and having better electromagnetic compatibility (EMC).

[0061] Anything not described in this utility model can be achieved by adopting or drawing on existing technologies.

[0062] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on the differences from other embodiments.

[0063] The above description is merely an embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of the claims of the present invention.

Claims

1. An anti-interference inverter power supply structure, characterized in that: including a housing, a heat dissipation component and a circuit component; The shell forms a sealed structure, and the heat dissipation component includes a rectangular radiator and a cooling fan connected to the rectangular radiator. The two ends of the rectangular radiator are respectively connected to the inner walls on both sides of the shell to form a sealed heat dissipation channel; the shell has symmetrical ventilation holes on both sides corresponding to the heat dissipation channel, and the ventilation holes form a cooling fan mounting position for positioning the cooling fan; the circuit component includes a power device, and the power device is connected to both sides of the rectangular radiator through a connecting component, and the heat of the power device can be output to the outside through the rectangular radiator.

2. The anti-interference inverter power supply structure according to claim 1, characterized in that: The rectangular radiator has at least two rows of heat dissipation fins therein, and the heat dissipation fins correspond to the ventilation holes, and can transfer heat to the outside of the ventilation holes through the heat dissipation fins under the blowing action of the heat dissipation fan.

3. The anti-interference inverter power supply structure according to claim 1, characterized in that: The connecting component includes a heat-conducting component and a fixing component; the heat-conducting component is connected between the heat dissipation surface of the power device and the rectangular heat sink; the fixing component can be installed between the power device and the rectangular heat sink.

4. The anti-interference inverter power supply structure according to claim 3, characterized in that: The heat-conducting component has a plurality of mica sheets arranged between the power device and the outer side of the rectangular heat sink; both sides of the mica sheets are coated with thermal grease, and are connected between the heat dissipation surface of the power device and the rectangular heat sink through the thermal grease.

5. The anti-interference inverter power supply structure according to claim 3, characterized in that: The fixing assembly includes a bridge-type fixing member and a fixing bolt, and one fixing bolt is arranged between two pairs of the bridge-type fixing members.

6. The anti-interference inverter power supply structure according to claim 3, characterized in that: The circuit assembly further includes a power board, which is arranged above the rectangular heat sink. The pins of the power device can extend into the pin holes of the power board and be fixedly connected to the pin holes.

7. The anti-interference inverter power supply structure according to claim 6, characterized in that: The circuit assembly also includes a filter inductor, which is connected to both sides of the rectangular heat sink. Viscous thermal paste is provided between the filter inductor and the rectangular heat sink, and the pins of the filter inductor can be fixedly connected to the power board.

8. The anti-interference inverter power supply structure according to claim 1, characterized in that: The shell includes a box body and a cover plate, wherein the box body and the cover plate are connected to form a cavity with a sealed internal structure, and the box body and the cover plate are made of aluminum alloy structure.

9. The anti-interference inverter power supply structure according to claim 8, characterized in that: The circuit assembly also includes a capacitor plate, a control board and an integrated filter; the cavity has a first mounting position and a second mounting position distributed on both sides of the box body, the first mounting position is used to connect the capacitor plate, and the second mounting position is used to connect the control board; the integrated filter is connected to one side of the rectangular radiator, and the through-wall hole terminal of the integrated filter can pass through the outside of the shell and be fastened to the shell by a nut.

10. The anti-interference inverter power supply structure according to claim 9, characterized in that: The control board is connected to a communication terminal and a debugging terminal; the wiring surfaces of the communication terminal and the debugging terminal can be embedded in one side of the shell and are fastened to the shell by bolts.

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