Inverter assembly

Abstract

The utility model relates to an inverter assembly. The inverter assembly comprises a shell and a machine core body, the shell is provided with a containing cavity, the machine core body is contained in the containing cavity, the machine core body comprises a base plate, a radiator support, a primary inversion PCB, a secondary inversion PCB, an EMC board and an inductance assembly, the base plate is connected with the shell, one side of the radiator support is connected with the base plate, the primary inversion PCB and the secondary inversion PCB are connected with the base plate, and the inductance assembly is connected with the base plate. The EMC board and the inductor assembly are installed on the side, away from the base plate, of the radiator support, the inductor assembly comprises a first inductor and a second inductor, and the first inductor and the second inductor are arranged at the two ends, in the first direction, of the EMC board respectively. According to the inverter assembly, the inductance assembly and the EMC plate are installed on the side, away from the chassis, of the radiator support, so that the length of the inverter assembly is reduced, the structure of the inverter assembly is compact, and the adaptability of the inverter assembly is improved.

Description

Technical Field

[0001] This utility model relates to the field of inverter technology, and in particular to inverter assemblies. Background Technology

[0002] An inverter is a converter that transforms direct current (DC) power into alternating current (AC) power with fixed frequency and voltage or adjustable frequency and voltage. In existing inverter assemblies, the inverter PCB (Printed Circuit Board) is generally mounted on the chassis, while the PFC (Power Factor Correction) inductor, EMC board, etc., are generally mounted at the front of the chassis. This results in a relatively long inverter assembly, which affects the installation of the inverter assembly. Utility Model Content

[0003] Therefore, it is necessary to address the technical problem that in existing inverter assemblies, PFC inductors, EMC boards, etc. are generally installed at the front of the chassis, resulting in a long overall size of the inverter assembly and affecting its installation. This is to provide a new inverter assembly.

[0004] An inverter assembly includes a housing and a core body. The housing has a receiving cavity, and the core body is housed within the receiving cavity. The core body includes a chassis, a heat sink bracket, a primary inverter PCB board, a secondary inverter PCB board, an EMC board, and an inductor assembly. The chassis is connected to the housing, and one side of the heat sink bracket is connected to the chassis. The primary inverter PCB board and the secondary inverter PCB board are respectively connected to the chassis and are respectively disposed on both sides of the heat sink bracket along its extension direction. The EMC board and the inductor assembly are mounted on the side of the heat sink bracket away from the chassis. The inductor assembly includes a first inductor and a second inductor, and the first inductor and the second inductor are respectively disposed at both ends of the EMC board along the first direction.

[0005] In one embodiment, the heat sink bracket includes a support base and a support platform. The support base is connected to the chassis, and the support platform is connected to the side of the support base away from the chassis. In the arrangement direction of the primary inverter PCB and the secondary inverter PCB, at least one side of the support platform protrudes relative to the support base. The EMC board and the inductor assembly are mounted on the support platform.

[0006] In one embodiment, at least one side of the support platform protrudes relative to the support base in the extending direction of the radiator bracket.

[0007] In one embodiment, both the primary inverter PCB and the secondary inverter PCB are provided with heat sinks on the side facing the heat sink bracket. In the arrangement direction of the primary inverter PCB and the secondary inverter PCB, both sides of the support base are provided with protrusions, which abut against the heat sinks to support them.

[0008] In one embodiment, the portion of the support platform that protrudes relative to the support base forms a first recess between the protrusion and the protrusion, and the heat sink is inserted into the first recess and connected to the support platform.

[0009] In one embodiment, the housing is provided with a first air outlet at both ends of the extension direction of the radiator bracket, and the first air outlet corresponds to the first recess to form a first air duct.

[0010] In one embodiment, in the arrangement direction of the primary inverter PCB and the secondary inverter PCB, two protrusions are provided on both sides of the support base, and two spaced heat sinks are provided on both the primary inverter PCB and the secondary inverter PCB. The two protrusions on the same side abut against the two heat sinks on the primary inverter PCB or the secondary inverter PCB respectively, and a second recess is formed between the two protrusions on the same side. The second recess is used to correspond to the first air outlet to form a second air duct.

[0011] In one embodiment, the inverter assembly further includes a fan connected to the chassis and located at one end of the support platform in the extension direction of the radiator bracket, so that the air generated by the fan flows out of the housing via the first air duct.

[0012] In one embodiment, the chassis includes a first connecting plate, a second connecting plate, and a third connecting plate that are interconnected. The second connecting plate and the third connecting plate are located on both sides of the first connecting plate in the extension direction of the radiator bracket. The primary inverter PCB board and the secondary inverter PCB board are connected to the first connecting plate, and the two ends of the primary inverter PCB board and the secondary inverter PCB board along the extension direction of the radiator bracket are respectively connected to the second connecting plate and the third connecting plate.

[0013] In one embodiment, the inverter assembly further includes wires, and the housing has a power cord interface on one side of the extension direction of the heat sink bracket. The wires enter the receiving cavity through the power cord interface, and the inductor assembly, the EMC board, and the primary inverter PCB board or the secondary inverter PCB board are electrically connected through the wires.

[0014] Beneficial effects:

[0015] The inverter assembly provided in this embodiment of the utility model includes a housing and a core body. The housing has a receiving cavity, and the core body is housed in the receiving cavity. The core body includes a chassis, a heat sink bracket, a primary inverter PCB board, a secondary inverter PCB board, an EMC board, and an inductor assembly. The chassis is connected to the housing, and one side of the heat sink bracket is connected to the chassis. The primary inverter PCB board and the secondary inverter PCB board are respectively connected to the chassis and are respectively disposed on both sides of the extension direction of the heat sink bracket. The EMC board and the inductor assembly are installed on the side of the heat sink bracket away from the chassis. The inductor assembly includes a first inductor and a second inductor, and the first inductor and the second inductor are respectively disposed at both ends of the EMC board along a first direction. In this application, the primary inverter PCB board, secondary inverter PCB board, inductor components, and EMC board are all fixed on the heat sink bracket to form a modular structure, which facilitates disassembly and installation. Furthermore, by mounting the inductor components and EMC board on the side of the heat sink bracket away from the chassis, the length of the inverter assembly is reduced, making the inverter assembly more compact and improving its adaptability. Attached Figure Description

[0016] Figure 1 Schematic diagram of an inverter assembly provided in an embodiment of the present invention Figure 1 .

[0017] Figure 2 Schematic diagram of an inverter assembly provided in an embodiment of the present invention Figure 2 .

[0018] Figure 3 This is a schematic diagram of the core body of an inverter assembly provided in an embodiment of the present invention.

[0019] Figure 4 This is an exploded view of an inverter assembly provided in one embodiment of the present invention.

[0020] Figure 5 This is a schematic diagram of a heat sink bracket in an inverter assembly provided in one embodiment of the present invention.

[0021] Icon labels:

[0022] 100 - Housing; 110 - First air outlet; 120 - Power cord interface; 140 - Second air outlet; 150 - Front panel; 160 - Rear panel; 170 - Side panel; 180 - Top panel; 190 - Bottom panel; 200 - Mechanism body; 210 - Chassis; 211 - First connecting plate; 212 - Second connecting plate; 213 - Third connecting plate; 214 - Clearance hole; 215 - Mating hole; 220 - Heat sink bracket; 221 - Support base; 222 - Support platform; 223 - Protrusion; 224 - First recess; 225 - Second recess; 230 - Primary inverter PCB board; 240 - Secondary inverter PCB board; 250 - EMC board; 260 - Inductor assembly; 261 - First inductor; 262 - Second inductor; 270 - Wire; 280 - Fan; 290 - Heat sink. Detailed Implementation

[0023] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0024] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0026] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0028] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0029] See Figure 1 , Figure 2 , Figure 3 and Figure 4 , Figure 1 Schematic diagram of an inverter assembly provided in an embodiment of the present invention Figure 1 . Figure 2 Schematic diagram of an inverter assembly provided in an embodiment of the present invention Figure 2 . Figure 3 This is a schematic diagram of the core body of an inverter assembly provided in an embodiment of the present invention. Figure 4This is an exploded view of an inverter assembly provided in one embodiment of the present invention. An embodiment of this utility model provides an inverter assembly, including a housing 100 and a core body 200. The housing 100 has a receiving cavity, and the core body 200 is housed in the receiving cavity. The core body 200 includes a chassis 210, a heat sink bracket 220, a primary inverter PCB board 230, a secondary inverter PCB board 240, an EMC board 250, and an inductor assembly 260. The chassis 210 is connected to the housing 100. One side of the heat sink bracket 220 is connected to the chassis 210. The primary inverter PCB board 230 and the secondary inverter PCB board 240 are respectively connected to the chassis 210 and are respectively disposed on both sides of the extending direction of the heat sink bracket 220. The EMC board 250 and the inductor assembly 260 are mounted on the side of the heat sink bracket 220 away from the chassis 210. The inductor assembly 260 includes a first inductor 261 and a second inductor 262. The first inductor 261 and the second inductor 262 are respectively disposed at both ends of the EMC board 250 along a first direction.

[0030] Specifically, in this application, the primary inverter PCB board 230, the secondary inverter PCB board 240, the inductor assembly 260, and the EMC board 250 are all fixed on the heat sink bracket 220 to form a modular structure, which facilitates disassembly and installation. Furthermore, by installing the inductor assembly 260 and the EMC board 250 on the side of the heat sink bracket 220 away from the chassis 210, the length of the inverter assembly is reduced, making the inverter assembly more compact and improving its adaptability.

[0031] Furthermore, the housing 100 includes a front plate 150, a rear plate 160, a top plate 180, a bottom plate 190, and two side plates 170. The bottom plate 190 is connected to the chassis 210. The front plate 150 and the rear plate 160 are respectively connected to the bottom plate 190 at both ends in the extending direction of the radiator bracket 220. The top plate 180 is located above the bottom plate 190 and is connected to the front plate 150 and the rear plate 160. The two side plates 170 are respectively connected to the bottom plate 190 at both ends in the width direction of the radiator bracket 220 to form a receiving cavity. In this embodiment, the radiator bracket 220 is a plastic part, which has higher processing precision and lower cost compared to sheet metal parts.

[0032] It should be noted that, for ease of description, in this embodiment, the extension direction of the heat sink bracket 220 is defined as the first direction, the width direction of the heat sink bracket 220, that is, the arrangement direction of the primary inverter PCB board 230 and the secondary inverter PCB board 240, is defined as the second direction, and the height direction of the heat sink bracket 220 is defined as the third direction. The first direction, the second direction and the third direction are perpendicular to each other, and the following description will use the first direction, the second direction and the third direction.

[0033] See Figure 3 , Figure 4 and Figure 5 , Figure 5 This is a schematic diagram of a heat sink bracket in an inverter assembly according to an embodiment of the present invention. In one embodiment, the heat sink bracket 220 includes a support base 221 and a support platform 222. The support base 221 is connected to the chassis 210, and the support platform 222 is connected to the side of the support base 221 away from the chassis 210. In the arrangement direction of the primary inverter PCB board 230 and the secondary inverter PCB board 240, at least one side of the support platform 222 protrudes relative to the support base 221. The EMC board 250 and the inductor assembly 260 are mounted on the support platform 222.

[0034] Specifically, in the second direction, at least one side of the support platform 222 protrudes relative to the support base 221. This ensures that while avoiding obstruction of the primary inverter PCB board 230 and the secondary inverter PCB board 240, the support platform 222 has sufficient dimensions in the second direction to support the EMC board 250 and the inductor assembly 260. Furthermore, it prevents the EMC board 250 and the inductor assembly 260 from protruding relative to the support platform 222 in the second direction, thus protecting them and improving the reliability of the inverter assembly. Preferably, in the second direction, both sides of the support platform 222 protrude relative to the support base 221.

[0035] See Figure 3 , Figure 4 and Figure 5 In one embodiment, at least one side of the support platform 222 protrudes relative to the support base 221 in the extending direction of the heat sink bracket 220.

[0036] Specifically, in the first direction, at least one side of the support platform 222 protrudes relative to the support base 221, thereby allowing the support platform 222 to have sufficient size in the first direction to support the EMC board 250 and the inductor assembly 260 while avoiding the primary inverter PCB board 230 and the secondary inverter PCB board 240. It also prevents the EMC board 250 and the inductor assembly 260 from protruding relative to the support platform 222 in the first direction, thus protecting the EMC board 250 and the inductor assembly 260 and improving the reliability of the inverter assembly.

[0037] See Figure 3 , Figure 4 and Figure 5 In one embodiment, both the primary inverter PCB board 230 and the secondary inverter PCB board 240 are provided with heat sinks 290 on the side facing the heat sink bracket 220. In the arrangement direction of the primary inverter PCB board 230 and the secondary inverter PCB board 240, both sides of the support base 221 are provided with protrusions 223, which abut against the heat sinks 290 to support the heat sinks 290.

[0038] Specifically, the support base 221 has protrusions 223 on both sides. The heat sinks 290 on the primary inverter PCB board 230 and the secondary inverter PCB board 240 respectively abut against the protrusions 223 on both sides of the support base 221, thereby supporting the heat sinks 290 and improving the stability of the primary inverter PCB board 230 and the secondary inverter PCB board 240.

[0039] See Figure 3 , Figure 4 and Figure 5 In one embodiment, the portion of the support platform 222 that protrudes relative to the support base 221 forms a first recess 224 between the protrusion 223 and the support platform 222. The heat sink 290 is inserted into the first recess 224 and connected to the support platform 222.

[0040] Specifically, the heat sink 290 is inserted into the first recess 224, which can limit the position of the heat sink 290 and connect it to the support platform 222, thereby further improving the stability of the heat sink 290. Since the heat sink 290 is installed on the primary inverter PCB board 230 or the secondary inverter PCB board 240, the stability of the primary inverter PCB board 230 and the secondary inverter PCB board 240 is improved.

[0041] See Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 In one embodiment, the housing 100 is provided with a first air outlet 110 at both ends of the extension direction of the heat sink bracket 220. The first air outlet 110 corresponds to the first recess 224 to form a first air duct.

[0042] Specifically, the front panel 150 and the rear panel 160 are provided with first air outlets 110 corresponding to the first recess 224, so that the airflow entering from one of the first air outlets 110 can flow along the first direction through the first air duct, so that the air force is concentrated and the heat dissipation effect on the radiator 290 is improved, thereby improving the heat dissipation effect on the inverter assembly.

[0043] See Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5In one embodiment, in the arrangement direction of the primary inverter PCB board 230 and the secondary inverter PCB board 240, two protrusions 223 are provided on both sides of the support base 221. Two heat sinks 290 are provided on both the primary inverter PCB board 230 and the secondary inverter PCB board 240. The two protrusions 223 on the same side abut against the two heat sinks 290 on the primary inverter PCB board 230 or the secondary inverter PCB board 240 respectively. A second recess 225 is formed between the two protrusions 223 on the same side. The second recess 225 is used to correspond to the first air outlet 110 to form a second air duct.

[0044] Specifically, two protrusions 223 located on the same side are spaced apart along a third direction. Two heat sinks 290 on the primary inverter PCB board 230 and the secondary inverter PCB board 240 are respectively inserted into the first recess 224 and the second recess 225, and abut against the protrusions 223, thus being stably supported and limited, improving the stability of the primary inverter PCB board 230 and the secondary inverter PCB board 240. The second recess 225 also corresponds to the first air outlet 110, allowing airflow entering from one of the first air outlets 110 to flow along the first direction through the second air duct, concentrating the airflow and improving the heat dissipation effect on the heat sink 290, thereby improving the heat dissipation effect on the inverter assembly.

[0045] Furthermore, the two side plates 170 are provided with second air outlets 140 in the areas corresponding to the primary inverter PCB board 230 and the secondary inverter PCB board 240, which facilitates heat dissipation of the primary inverter PCB board 230 and the secondary inverter PCB board 240 and improves the heat dissipation effect of the inverter assembly.

[0046] See Figure 1 , Figure 2 , Figure 3 and Figure 4 In one embodiment, the inverter assembly further includes a fan 280, which is connected to the chassis 210 and is located at one end of the support platform 222 in the extension direction of the radiator bracket 220, so that the air generated by the fan 280 flows out of the housing 100 through the first air duct.

[0047] Specifically, fan 280 corresponds to the first air duct and the second air duct, so that when fan 280 is turned on, the air generated by fan 280 can be concentrated in the first air duct and the second air duct, so that the air force is concentrated and the heat dissipation effect of heat sink 290 is improved, thereby improving the heat dissipation effect of inverter assembly.

[0048] Furthermore, in the first direction, the side of the support platform 222 closest to the fan 280 is flush with the support base 221, thereby allowing the housing of the fan 280 to fit snugly against the heat sink bracket 220, making the inverter assembly structure more compact.

[0049] See Figure 3 and Figure 4 In one embodiment, the chassis 210 includes a first connecting plate 211, a second connecting plate 212, and a third connecting plate 213 connected to each other. The second connecting plate 212 and the third connecting plate are located on both sides of the first connecting plate 211 in the extension direction of the radiator bracket 220. The primary inverter PCB board 230 and the secondary inverter PCB board 240 are connected to the first connecting plate 211, and the two ends of the primary inverter PCB board 230 and the secondary inverter PCB board 240 along the extension direction of the radiator bracket 220 are respectively connected to the second connecting plate 212 and the third connecting plate 213.

[0050] Specifically, the second connecting plate 212 and the third connecting plate 213 are arranged in parallel and are both perpendicular to the first connecting plate 211. The fan 280 is mounted on the second connecting plate 212, and the second connecting plate 212 has a mating hole 215 corresponding to the first air outlet to avoid obstructing the airflow generated by the fan 280. The lower ends of the primary inverter PCB 230 and the secondary inverter PCB are connected to the first connecting plate 211, the side of the primary inverter PCB 230 and the secondary inverter PCB closer to the fan 280 is connected to the second connecting plate 212, and the side of the primary inverter PCB 230 and the secondary inverter PCB farther from the fan 280 is connected to the third connecting plate 213, thereby improving the stability of the primary inverter PCB 230 and the secondary inverter PCB 240.

[0051] See Figure 2 and Figure 4 In one embodiment, the inverter assembly further includes a wire 270. The housing 100 has a power cord interface 120 on one side of the extension direction of the heat sink bracket 220. The wire 270 enters the receiving cavity through the power cord interface 120. The inductor assembly 260, the EMC board 250 and the primary inverter PCB board 230 or the secondary inverter PCB board 240 are electrically connected through the wire 270.

[0052] Specifically, the power cord interface 120 is located on the side of the support platform 222 away from the support base 221. The second connecting plate 212 has a clearance hole 214 corresponding to the power cord interface 120. The wire 270 is guided through the power cord interface 120 and the clearance hole 214 to the top of the support platform 222, thereby facilitating the electrical connection between the wire 270 and the inductor assembly 260 and EMC board 250 on the support platform 222. Since the primary inverter PCB board 230 and the secondary inverter PCB board 240 are located on both sides of the heat sink bracket 220, it is convenient for the wire 270 to extend to both sides from the position above the support platform 222, thereby facilitating the arrangement of the wire 270 and improving the adaptability of the inverter assembly.

[0053] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0054] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An inverter assembly, characterized in that, The inverter assembly includes a housing and a core body. The housing has a receiving cavity, and the core body is housed in the receiving cavity. The core body includes a chassis, a heat sink bracket, a primary inverter PCB board, a secondary inverter PCB board, an EMC board, and an inductor assembly. The chassis is connected to the housing, and one side of the heat sink bracket is connected to the chassis. The primary inverter PCB board and the secondary inverter PCB board are respectively connected to the chassis and are respectively disposed on both sides of the heat sink bracket extending in the direction of extension. The EMC board and the inductor assembly are mounted on the side of the heat sink bracket away from the chassis. The inductor assembly includes a first inductor and a second inductor, and the first inductor and the second inductor are respectively disposed at both ends of the EMC board along the first direction.

2. The inverter assembly according to claim 1, characterized in that, The heat sink bracket includes a support base and a support platform. The support base is connected to the chassis, and the support platform is connected to the side of the support base away from the chassis. In the arrangement direction of the primary inverter PCB and the secondary inverter PCB, at least one side of the support platform protrudes relative to the support base. The EMC board and the inductor assembly are mounted on the support platform.

3. The inverter assembly according to claim 2, characterized in that, In the extending direction of the radiator bracket, at least one side of the support platform protrudes relative to the support base.

4. The inverter assembly according to claim 2, characterized in that, Both the primary inverter PCB and the secondary inverter PCB are provided with heat sinks on the side facing the heat sink bracket. In the arrangement direction of the primary inverter PCB and the secondary inverter PCB, both sides of the support base are provided with protrusions, which abut against the heat sinks to support them.

5. The inverter assembly according to claim 4, characterized in that, The portion of the support platform that protrudes relative to the support base forms a first recess with the protrusion. The radiator is inserted into the first recess and connected to the support platform.

6. The inverter assembly according to claim 5, characterized in that, The housing is provided with a first air outlet at both ends of the extension direction of the radiator bracket, and the first air outlet corresponds to the first recess to form a first air duct.

7. The inverter assembly according to claim 6, characterized in that, In the arrangement direction of the primary inverter PCB and the secondary inverter PCB, two protrusions are provided on both sides of the support base. Two heat sinks are provided on both the primary inverter PCB and the secondary inverter PCB. The two protrusions on the same side abut against the two heat sinks on the primary inverter PCB or the secondary inverter PCB respectively. A second recess is formed between the two protrusions on the same side. The second recess is used to correspond to the first air outlet to form a second air duct.

8. The inverter assembly according to claim 6, characterized in that, The inverter assembly also includes a fan connected to the chassis and located at one end of the support platform in the extension direction of the radiator bracket, so that the air generated by the fan flows out of the housing through the first air duct.

9. The inverter assembly according to any one of claims 1-8, characterized in that, The chassis includes a first connecting plate, a second connecting plate, and a third connecting plate that are connected to each other. The second connecting plate and the third connecting plate are located on both sides of the first connecting plate in the extension direction of the radiator bracket. The primary inverter PCB board and the secondary inverter PCB board are connected to the first connecting plate, and the two ends of the primary inverter PCB board and the secondary inverter PCB board along the extension direction of the radiator bracket are respectively connected to the second connecting plate and the third connecting plate.

10. The inverter assembly according to any one of claims 1-8, characterized in that, The inverter assembly also includes wires. The housing has a power cord interface on one side of the extension direction of the heat sink bracket. The wires enter the receiving cavity through the power cord interface. The inductor assembly, the EMC board and the primary inverter PCB board or the secondary inverter PCB board are electrically connected through the wires.

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