Power converter

Abstract

The application discloses a power converter. The power converter comprises a shell, a power device, a circuit board, a connecting piece and an inductance device, the power device is installed on the circuit board, a first accommodating cavity is formed in the shell for accommodating the circuit board and the power device, a through hole is formed on a side of the shell opposite to the circuit board, the inductance device is wholly or partially exposed outside the shell and covers the through hole, the connecting piece extends from the circuit board in the shell to the inductance device and passes through the side of the shell, so that the inductance device is physically connected with the shell and the power device is electrically connected with the inductance device. The power converter is simpler to install the inductance, the inductance device can pre-position the cable, and the bundled cable does not need to be combed and tied by manual work, so that the time length of workers for assembling the inductance can be shortened, the assembling efficiency is improved, and the labor cost is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of electric energy conversion, in particular to a power converter. BACKGROUND

[0002] At present, the power converter generally adopts an external inductance device, a cable is used to pass through the box of the power converter from the lead-out wire connected with the inductance in the inductance device, and the cable led out from the inductance device is bundled and led out to the box of the power converter. When the cable is led out from the inductance device to the box, the bundled cable is more complicated, and it is also necessary to manually comb the cable and fix the cable on the box of the power converter. The inductance with the cable has a long installation time and high manufacturing cost. SUMMARY

[0003] Therefore, the present application provides a power converter, which can reduce the time required for combing the cable, improve the assembly efficiency of the inductance and the cable, and reduce the cost.

[0004] A first aspect of the present application provides a power converter, which comprises a shell, a power device, a circuit board, a connecting piece and an inductance device connecting piece. The power device is installed on the circuit board, the shell forms a first accommodating cavity in it for accommodating the circuit board and the power device, the shell is provided with a through hole on the side facing the circuit board, the inductance device is wholly or partially exposed outside the shell and covers the through hole, the connecting piece extends from the circuit board in the shell to the inductance device and passes through the side of the shell, so as to physically connect the inductance device with the shell and also electrically connect the power device with the inductance device.

[0005] The power converter connects the circuit board and the inductance device by using the connecting piece, which can not only fix the inductance device on the shell, but also electrically connect the inductance device with the power device. After the inductance device is electrically connected with the power device through the connecting piece, it is not necessary to connect the inductance device with the power device by using the cable to pass through the shell. The power converter is simpler to install the inductance, and it is not necessary to manually comb and bundle the bundled cable, which can shorten the time of workers to assemble the inductance, improve the assembly efficiency, and reduce the labor cost.

[0006] Based on the first aspect, in a possible implementation manner, the side of the shell is further provided with a heat dissipation structure, the heat dissipation structure is partially or wholly surrounded around the inductance device, and is in heat conduction connection with the power device, so as to dissipate heat for the power device.

[0007] In the possible implementation manner, the heat dissipation structure is in heat conduction connection with the power device, so as to dissipate heat for the power device. In addition, the heat dissipation structure is partially or wholly surrounded around the inductance device, so as to dissipate heat for the inductance device.

[0008] In a possible implementation of the first aspect, the inductor device further includes a box body mounted on the shell and provided with a receiving space capable of accommodating the inductor. The positioning member includes a bottom plate, a mounting portion, a connecting terminal, and a locking portion. The bottom plate is arranged on the box body and parallel to the wall surface of the shell provided with the through hole. The connecting terminal is arranged on the mounting portion, and the mounting portion and the connecting terminal form a second receiving cavity therebetween. The locking portion is arranged on the connecting terminal or the mounting portion and located in the second receiving cavity. The mounting portion clamps and fixes the locking portion. The positioning member can fix the cable through the connecting terminal.

[0009] In the possible implementation, the inductor is arranged in the receiving space, and thus the inductor can be fixed. After the inductor device is provided with the positioning member, the end of the cable electrically connected to the inductor can be directly connected to the connecting terminal. The connecting terminal is fixed on the mounting portion through the locking portion, and thus the cable can be pre-positioned without manual combing and bundling of the bundled cable.

[0010] In a possible implementation of the first aspect, the connecting terminal is provided with a first through hole, the locking portion is arranged in the first through hole, and the locking portion and the first through hole are in interference fit. The connecting member is connected to the connecting terminal through the locking portion.

[0011] In the possible implementation, the locking portion is arranged in the first through hole of the connecting terminal, and the locking portion and the first through hole are in interference fit. The locking portion and the connecting terminal do not need to be fixed by other means. In addition, the locking portion is arranged on the connecting terminal, and thus the connecting terminal can be directly used when the inductor device is installed, so as to improve the assembly efficiency of the inductor device.

[0012] In a possible implementation of the first aspect, the connecting terminal is provided with a first through hole, the locking portion is arranged on the bottom wall of the mounting portion and corresponds to the first through hole, and the connecting member passes through the first through hole and is connected to the locking portion.

[0013] In the possible implementation, the locking portion is directly arranged on the bottom wall of the mounting portion, so as to simplify the assembly steps of the inductor device and further reduce the cost.

[0014] In a possible implementation of the first aspect, the positioning member further includes an extension portion, and the locking portion has a stop surface. The extension portion is arranged on the wall surface of the mounting portion facing the locking portion, and the extension portion clamps the stop surface of the locking portion.

[0015] In the possible implementation, the extension portion clamps the stop surface, so as to form a stable connection between the mounting portion and the locking portion. The connecting terminal and the mounting portion are connected through the locking portion, and thus the mounting portion can position the connecting terminal.

[0016] In a possible implementation manner of the first aspect, the positioning member further comprises a stopper, and the connecting terminal is provided with a second through hole. The stopper is arranged in a space surrounded by the mounting portion, or the stopper is arranged on a circumferential side of the mounting portion, the stopper passes through the second through hole, and the stopper can abut against the connecting terminal in a passing direction.

[0017] In the possible implementation manner, the stopper is arranged to pass through the second through hole, and the stopper can abut against the connecting terminal to correct the mounting position of the connecting terminal. For example, when the connecting terminal is assembled with the mounting portion through the locking portion, the connecting terminal is not properly positioned when placed. After the stopper passes through the second through hole and abuts against the connecting terminal, the position of the connecting terminal when placed can be corrected, so that the connecting terminal is properly positioned, and the connection between the locking portion and the mounting portion is facilitated.

[0018] In a possible implementation manner of the first aspect, the positioning member further comprises a wire bundling buckle. The wire bundling buckle is arranged on a side of the connecting terminal away from the locking portion, and the wire bundling buckle is provided with an opening through which the cable can enter the wire bundling buckle to fix the cable.

[0019] In the possible implementation manner, the wire bundling buckle is arranged on a side of the connecting terminal. When the connecting terminal fixes the cable, the wire bundling buckle can clamp the cable, so that the end of the cable is prevented from being deviated due to stress and pulling during the connection with the connecting terminal.

[0020] In a possible implementation manner of the first aspect, the positioning member is provided with a through hole, and the accommodation space is in communication with the through hole. The cable can pass through the through hole.

[0021] In the possible implementation manner, the cable can pass through the through hole of the positioning member, so that the cable is conveniently connected with the connecting terminal.

[0022] In a possible implementation manner of the first aspect, the box body is provided with a first positioning portion, and the positioning member is provided with a second positioning portion. The first positioning portion is connected with the second positioning portion to fix the positioning member to the box body.

[0023] In the possible implementation manner, the first positioning portion and the second positioning portion are connected to position the positioning member by the box body, and the connection between the positioning member and the box body is achieved, so that the convenience of assembly between the positioning member and the box body is improved.

[0024] In a possible implementation manner of the first aspect, the inductor device is provided with a first fixing portion, and the shell is provided with a second fixing portion. The first fixing portion is connected with the second fixing portion to fix the inductor device to the shell.

[0025] In the possible implementation, the first fixed part and the second fixed part are connected, so that the inductor device is positioned in the shell quickly, and the efficiency of assembling the shell and the inductor device is improved.

[0026] According to the first aspect, in a possible implementation, the shell is provided with two through holes, the power converter includes two inductor devices, the two through holes are arranged on the same wall surface of the shell, each through hole corresponds to one inductor device, and the two inductor devices are arranged at intervals.

[0027] In the possible implementation, two inductor devices are arranged, different inductances can be installed to realize different functions, and the applicability of the power converter is improved. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 A perspective structural schematic diagram of a power converter is provided for an embodiment of the present application.

[0029] Figure 2 For Figure 1 A bottom view structural schematic diagram of the power converter is shown.

[0030] Figure 3 For Figure 1 A perspective structural schematic diagram of an inductor device in the power converter is shown.

[0031] Figure 4 For Figure 3 A perspective structural schematic diagram of the inductor device from another angle is shown.

[0032] Figure 5 For Figure 3 An exploded structural schematic diagram of the inductor device is shown.

[0033] Figure 6 For Figure 5 An exploded structural schematic diagram of a positioning member in the inductor device is shown.

[0034] Figure 7 For Figure 1 A partial cross-sectional view of the power converter, in which a connecting member passes through a circuit board and is connected to the positioning member, is shown.

[0035] Figure 8 A perspective structural schematic diagram of a positioning member in the inductor device of another embodiment of the present application is shown.

[0036] Figure 9 For Figure 3 A perspective structural schematic diagram of an inductor provided in the inductor device is shown.

[0037] Figure 10 For Figure 9The shown inductive device is provided with a colloidal three-dimensional structure schematic diagram.

[0038] Main element symbol explanation

[0039] Power converter 001

[0040] Inductive device 100

[0041] Box body 10

[0042] Connecting wall 11

[0043] Accommodation space 12

[0044] Partition plate 13

[0045] Clamping part 14

[0046] First positioning part 15

[0047] First fixing part 16

[0048] Positioning piece 20

[0049] Bottom plate 21

[0050] Through hole 211

[0051] Mounting part 22

[0052] Connecting terminal 23

[0053] First connecting part 231

[0054] Second connecting part 232

[0055] Notch 2321

[0056] First through hole 233

[0057] Second through hole 234

[0058] Locking part 24

[0059] Protrusion 241

[0060] Connecting column 242

[0061] Stop face 2421

[0062] Second accommodating cavity 25

[0063] Extension part 26

[0064] First area 261

[0065] Second area 262

[0066] Stop part 27

[0067] Cable tie 28

[0068] Opening 281

[0069] Second positioning section 29

[0070] Colloid 30

[0071] 400 housing

[0072] First accommodating cavity 40

[0073] Through holes 45, 46

[0074] Circuit board 500

[0075] Power Device 550

[0076] Connector 600

[0077] Inductor 700

[0078] 800 cable

[0079] Heat dissipation structure 900

[0080] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this application. Detailed Implementation

[0081] The following specific embodiments illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Although the description of this application is presented in conjunction with embodiments, this does not mean that the features of this application are limited to this embodiment. On the contrary, the purpose of describing the application in conjunction with embodiments is to cover other options or modifications that may be derived based on the claims of this application. To provide a thorough understanding of this application, many specific details will be included in the following description. This application may also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of this application, some specific details will be omitted in the description. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0082] Hereinafter, the terms "first", "second", etc. are used only for the purpose of description, and should not be understood as indicating or implying relative importance or implying the number of the technical features indicated. Therefore, the features defined with "first", "second", etc. can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more. The orientation terms such as "upper", "lower", "left", "right", etc. are defined with respect to the orientation of the components shown in the drawings, and it should be understood that these orientation terms are relative concepts, which are used for relative description and clarification, and can be changed accordingly according to the change of the orientation of the components shown in the drawings.

[0083] In the present application, unless otherwise specified and limited, the term "connection" should be understood broadly, for example, "connection" can be fixed connection, or detachable connection, or integral; can be directly connected, or indirectly connected through intermediate medium. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0084] In the following detailed description of the embodiments in conjunction with the schematic drawings, for the purpose of illustration, the drawings showing the local structure of the device can be partially enlarged without general proportion, and the schematic drawings are only examples, which should not limit the scope of protection of the present application here.

[0085] In order to make the purpose, technical scheme and advantages of the present application more clear, the embodiments of the present application will be further described in detail below in conjunction with the drawings.

[0086] Figure 1 A perspective structural schematic diagram of a power converter 001 provided by an embodiment of the present application is shown. Figure 2 A perspective structural schematic diagram of a power converter 001 provided by an embodiment of the present application is shown. Figure 1 A bottom view structural schematic diagram of the power converter 001 is shown.

[0087] Please refer to Figure 1 and Figure 2 An embodiment of the present application provides a power converter 001, which comprises an inductance device 100, a housing 400, a circuit board 500, a power device 550 and a connecting piece 600. The power device 550 is mounted on the circuit board 500, the circuit board 500 is arranged in the housing 400, the inductance device 100 is partially or entirely exposed outside the housing 400, the connecting piece 600 extends from the circuit board 500 in the housing 400 to the inductance device 100 and passes through one side of the housing 400, so as to physically connect the inductance device 100 with the housing 400 and also electrically connect the power device 550 with the inductance device 100. Among them, in combination with Figure 1As shown in the orientation, the inductor device 100 is arranged at the bottom end of the shell 400, so that when the inductor (not shown in the figure) is installed in the inductor device 100, the cable can pass through the inductor device 100 to electrically communicate with the power device 550 in the shell 400.

[0088] Please refer to Figure 1 In an embodiment, the shell 400 is rectangular, and a first accommodating cavity 40 is formed in the shell 400. The first accommodating cavity 40 is used to accommodate the circuit board 500 and the power device 550. A through hole 45 is formed on the side of the shell 400 opposite to the circuit board 500, and the first accommodating cavity 40 communicates with the through hole 45.

[0089] In an embodiment, the through hole 45 is formed on the side of the bottom end of the shell 400. The inductor device 100 is partially or entirely exposed to the outside of the side of the bottom end of the shell 400 and covers the through hole 45. That is, the inductor device 100 can be observed from the through hole 45. When the circuit board 500 is arranged in the shell 400, the through hole 45 is covered, thereby covering the inductor device 100. Here, the inductor device 100 is partially or entirely exposed to the outside of the shell 400 can be understood as follows: when part of the inductor device 100 extends into the shell 400 from the through hole 45, it can be understood that the inductor device 100 is partially exposed to the outside of the shell 400; and when the entire structure of the inductor device 100 does not extend into the shell 400, it can be understood that the inductor device 100 is entirely exposed to the outside of the shell 400.

[0090] In an embodiment, the power converter 001 includes two inductor devices 100, and the shell 400 is provided with two through holes 45. The two through holes 45 are arranged on the same side of the shell 400, that is, the two through holes 45 are arranged on the side of the bottom end of the shell 400, and the two through holes 45 are arranged side by side. Each through hole 45 corresponds to one inductor device 100, and there is a gap between the two through holes 45, thereby allowing the two inductor devices 100 to be arranged with a gap. Different inductors can be installed in the two inductor devices 100, so that the power converter 001 can realize different functions. For example, a step-down inductor can be installed in one inductor device 100, and a step-up inductor can be installed in the other inductor device 100.

[0091] The inductor device 100 is arranged on the side of the bottom end of the shell 400, so that the inductor arranged in the inductor device 100 can be electrically connected to the power device 550 arranged in the shell 400. The circuit board 500 is locked to the inductor device 100 by the connecting member 600, and the inductor can be electrically connected to the power device 550 through the inductor device 100, without the need to extend the cable from the inductor device 100 and then pass through the shell 400 to be connected to the circuit board 500. The structure of the power converter 001 is simplified, and the assembly is more convenient.

[0092] It can be understood that in other embodiments, the inductor device 100 can also be arranged at other positions of the shell 400. For example, when the circuit board 500 is arranged at one side of the side wall of the shell 400, the inductor device 100 can be arranged outside the side wall, so that the inductor device 100 can correspond to the circuit board 500.

[0093] Figure 3 A perspective view of the inductor device 100 is shown. Figure 1 A perspective view of the inductor device 100 is shown. Figure 4 A perspective view of the inductor device 100 is shown. Figure 3 A perspective view of the inductor device 100 is shown.

[0094] Referring to Figure 3 and Figure 4 , the inductor device 100 is used for fixing an inductor (not shown) and a cable (not shown) electrically connected with the inductor. The inductor device 100 comprises a box body 10 and a positioning member 20 arranged on the box body 10, the box body 10 is used for accommodating the inductor, and the positioning member 20 can be electrically connected with one end of the cable which is not connected with the inductor. When the inductor is arranged in the inductor device 100, the cable does not need to be bundled and combed, and the positioning member 20 can play a role of pre-positioning the cable. The pre-positioning can be understood as follows: when the inductor device 100 is arranged in the shell 400 of the power converter 001, the inductor needs to be connected with other components arranged on the circuit board 500 through the cable. In order to facilitate the connection of the cable with the circuit board 500, the cable needs to be positioned, so as to improve the situation that the cable deviates during the connection. When the inductor device 100 is arranged in the shell 400 after the cable is positioned by the positioning member 20, the cable which has been pre-positioned does not need to be positioned again.

[0095] Figure 5 A perspective view of the inductor device 100 is shown. Figure 3 A perspective view of the inductor device 100 is shown. Figure 6 A perspective view of the inductor device 100 is shown. Figure 5 A perspective view of the inductor device 100 is shown.

[0096] Referring to Figure 5 and Figure 6 , the box body 10 is arranged in the shell 400, and the box body 10 comprises a plurality of connecting walls 11 which are sequentially connected. The box body 10 is provided with an accommodation space 12, and the plurality of connecting walls 11 surround to form the accommodation space 12, and the accommodation space 12 can accommodate the inductor. In an embodiment, the box body 10 has an opening, and the inductor can be placed in the accommodation space 12 from the opening.

[0097] In an embodiment, the plurality of partitions 13 are arranged in the box body 10 and are spaced apart in the box body 10, and each partition 13 is fixedly connected with the connecting wall 11. The plurality of partitions 13 divide the accommodation space 12 into a plurality of accommodation cavities, one inductance can be arranged in each accommodation cavity, and the partition 13 can be in contact with the end of the inductance, so that the partition 13 can receive the heat generated by the inductance and dissipate the heat, thereby playing a role of heat dissipation for the inductance, so as to improve the service life of the inductance.

[0098] In an embodiment, the outer surface of the box body 10 is further provided with a clamping portion 14. The clamping portion 14 extends from the outer surface of the connecting wall 11 away from the connecting wall 11, and the outer surface of the connecting wall 11 is provided with a plurality of clamping portions 14. The box body 10 can be connected with other structures through the clamping portion 14, for example, when the power converter 001 is arranged on other equipment, the clamping portion 14 can be connected with the structure on the other equipment, such as by clamping, so that the box body 10 can be fixed on the other equipment.

[0099] In an embodiment, the clamping portion 14 can also dissipate heat. For example, the clamping portion 14 is made of heat-conducting material, and when the inductance device 100 is installed, the clamping portion 14 can be clamped on a heat dissipation structure (not shown), and the heat generated by the inductance can be transferred to the box body 10, and then to the clamping portion 14, and the heat dissipation structure can dissipate heat from the clamping portion 14, thereby reducing the temperature of the inductance device 100.

[0100] Please refer to Figure 5 and Figure 6 , the positioning member 20 is arranged in the box body 10, and the positioning member 20 is located in the accommodation space 12 and close to the open position of the box body 10, that is, the positioning member 20 is close to the bottom end of the shell 400. In an embodiment, the positioning member 20 includes a bottom plate 21, and the positioning member 20 is installed on the box body 10 through the bottom plate 21, and the bottom plate 21 is parallel to one side of the shell 400 provided with the through hole 45, in combination with the position shown in Figure 5 , that is, the bottom plate 21 is parallel to the bottom end of the shell 400.

[0101] In an embodiment, the positioning member 20 is provided with a through hole 211, and the accommodation space 12 and the through hole 211 are in communication, and the through hole 211 can be provided for a cable (not shown). The through hole 211 is formed in the bottom plate 21, and when the inductance is arranged in the box body 10, the inductance can be exposed from the through hole 211. By arranging the through hole 211 on the bottom plate 21, the cable electrically connected with the inductance can pass through the through hole 211, thereby being connected with other structures on the positioning member 20, without the need to make the cable pass around the bottom plate 21.

[0102] The positioning member 20 further comprises a mounting portion 22, a connecting terminal 23 and a locking portion 24. The connecting terminal 23 is arranged on the mounting portion 22, and a second accommodating cavity 25 is formed between the mounting portion 22 and the connecting terminal 23. The locking portion 24 is arranged on the connecting terminal 23 or the mounting portion 22, and the locking portion 24 is located in the second accommodating cavity 25. The mounting portion 22 clamps and fixes the locking portion 24, and the positioning member 20 fixes the cable through the connecting terminal 23. The mounting portion 22, the connecting terminal and the locking portion 24 are all located on the side of the bottom plate 21 away from the bottom wall of the box body 10, so that the connecting terminal 23 electrically connected with the cable can be connected with the circuit board 500 in the power converter 001.

[0103] In an embodiment, the positioning member 20 comprises a plurality of mounting portions 22, a plurality of connecting terminals 23 and a plurality of locking portions 24, and the plurality of mounting portions 22, the plurality of connecting terminals 23 and the plurality of locking portions 24 are one-to-one corresponding, that is, one mounting portion 22, one connecting terminal 23 and one locking portion 24 are connected. The plurality of mounting portions 22 can be arranged on the bottom plate 21 according to specific conditions, and the positioning member 20 can pre-position a plurality of cables by arranging a plurality of connecting terminals 23. The area of the through hole 45 of the shell 400 can be adapted to the size of the bottom plate 21, so that the mounting portion 22, the connecting terminal 23 and the locking portion 24 can be exposed in the through hole 45, so as to improve the case that when there is a cable in the box body 10, the through hole 45 of the shell 400 is too large, and the cable can be inserted into the shell 400 through the through hole 45 and contact the circuit board 500.

[0104] Generally, the inductance device is externally arranged on the power converter, and the cables drawn out of the inductance device need to pass through the box of the power converter and enter the inside of the box. The cables drawn out of the inductance device are bundled, that is, a plurality of cables are drawn out at the same time. When the bundled cables are drawn out of the inductance device and then inserted into the box of the power converter, in order to avoid that the cables occupy more space, the bundled cables need to be combed manually, which is time-consuming and has high labor cost. In addition, the bundled cables need to be tied, which requires the cost of tying materials. In addition, after the cables are inserted into the box of the power converter, in order to facilitate the connection between the cables and the internal components of the power converter, the cables need to be positioned.

[0105] Based on the situation, the inductor device 100 provided by the embodiment of the present application sets the inductor in the box body 10, and then sets the positioning member 20 in the box body 10. The positioning member 20 can be electrically connected with the cable through the connecting terminal 23. The connecting terminal 23 is fixed to the mounting portion 22 through the locking portion 24, and then the cable can be pre-positioned. After setting a plurality of connecting terminals 23, each connecting terminal 23 can be electrically connected with one cable. Without the need of manually combing and bundling the bundled cables, each cable is directly connected with the connecting terminal 23. The inductor device 100 can shorten the time length of the work done by the workers, improve the assembly efficiency, and reduce the labor cost. In addition, the inductor device 100 provided by the embodiment of the present application also does not need to bundle the cable, thereby saving the cost of bundling materials.

[0106] Please refer to Figure 6 The mounting portion 22 extends from the bottom plate 21 by a preset distance away from the bottom plate 21. The mounting portion 22 is designed by profiling, that is, the mounting portion 22 is set in combination with the outer contour of the locking portion 24, so that the mounting portion 22 can clampingly fix the locking portion 24. In an embodiment, the part of the mounting portion 22 extending from the bottom plate 21 is substantially an arc-shaped structure of a half ellipse, so that the mounting portion 22 can surround the connecting terminal 23 to form a second accommodating cavity 25, and then the connection among the mounting portion 22, the connecting terminal 23 and the locking portion 24 can be realized, thereby facilitating the positioning of the cable. In addition, the bottom plate 21 is arranged in parallel with the bottom end of the shell 400, and the mounting portion 22 can extend in a direction perpendicular to the bottom plate 21, so as to facilitate the installation of the connecting member 600.

[0107] It can be understood that in other embodiments, the shape of the part of the mounting portion 22 extending from the bottom plate 21 can also be replaced by other shapes, for example, the mounting portion 22 can also be replaced by a half circle.

[0108] Please refer to Figure 6 In order to better illustrate the structure of the positioning member 20, it will be illustrated in combination with the up-down direction. The connecting terminal 23 includes a first connecting portion 231 and a second connecting portion 232 connected with the first connecting portion 231. The first connecting portion 231 is used to connect the locking portion 24, and the second connecting portion 232 is used to connect the cable.

[0109] In an embodiment, the first connecting portion 231 is substantially Z-shaped. The upper end of the first connecting portion 231 is used to connect the locking portion 24, the lower end of the first connecting portion 231 is connected with the second connecting portion 232, and the length of the first connecting portion 231 along the up-down direction is substantially the same as the length of the mounting portion 22 extending, so that the mounting portion 22 and the first connecting portion 231 can form the second accommodating cavity 25.

[0110] In an embodiment, the second connecting portion 232 has a profile substantially same as that of the cable, so that the second connecting portion 232 can fix the cable. The second connecting portion 232 is provided with a notch 2321, so that when the cable is plugged into the second connecting portion 232, the second connecting portion 232 can be deformed by the driving of the cable to clamp and fix the cable. In this embodiment, the second connecting portion 232 and the cable are fixed by welding.

[0111] It can be understood that in other embodiments, the shape of the first connecting portion 231 is not limited to this. For example, the first connecting portion 231 can also be replaced by a T shape. In order to facilitate the plugging of the cable, the second connecting portion 232 can also be provided in a square structure, so that the cable can be more conveniently inserted into the second connecting portion 232.

[0112] Please refer to Figure 6 In an embodiment, the locking portion 24 is arranged on the connecting terminal 23. In this embodiment, the connecting terminal 23 is provided with a first through hole 233, the locking portion 24 is arranged on the first through hole 233, and the first through hole 233 and the locking portion 24 are in interference fit. The interference fit between the locking portion 24 and the first through hole 233 does not need to use other ways to fix the locking portion 24 and the connecting terminal 23. In addition, the locking portion 24 is arranged on the connecting terminal 23, so that the connecting terminal 23 can be directly used when assembling the inductor device 100, thereby improving the assembly efficiency of the inductor device 100.

[0113] In an embodiment, the locking portion 24 comprises a protrusion 241. The protrusion 241 is arranged on the first through hole 233, and the first through hole 233 and the protrusion 241 are in interference fit. The first connecting portion 231 of the connecting terminal 23 is provided with the first through hole 233 at the upper end position, and the protrusion 241 is provided with a sawtooth. When the protrusion 241 is inserted into the first through hole 233, the inner wall of the first through hole 233 is extruded and deformed by the protrusion 241, thereby achieving the locking effect and realizing the fixation between the connecting terminal 23 and the locking portion 24. The interference fit between the protrusion 241 and the first through hole 233 does not need to use other ways to fix the locking portion 24 and the connecting terminal 23, so that the installation between the locking portion 24 and the connecting terminal 23 is more simple.

[0114] In an embodiment, the locking portion 24 further comprises a connecting column 242, and the protrusion 241 is arranged on the connecting column 242. When the locking portion 24 is connected with the connecting terminal 23 through the protrusion 241, the connecting terminal 23 provided with the locking portion 24 is assembled with the mounting portion 22, at this time, the mounting portion 22 and the connecting terminal 23 form the second accommodating cavity 25, and the connecting column 242 of the locking portion 24 is located in the accommodating cavity. The shape of the mounting portion 22 is substantially the same as the outer contour of the connecting column 242, so that the mounting portion 22 can clampingly fix the connecting column 242, to realize the connection between the mounting portion 22 and the locking portion 24, thereby fixing the connecting terminal 23 to the mounting portion 22.

[0115] In an embodiment, the positioning member 20 further comprises an extending portion 26, and the locking portion 24 has a stop surface 2421. The extending portion 26 is arranged on the wall surface of the mounting portion 22 towards the locking portion 24, and the extending portion 26 clampingly fixes the stop surface 2421 of the locking portion 24. In an embodiment, the extending portion 26 is arranged on the inner wall surface of the mounting portion 22 forming the second accommodating cavity 25, the extending portion 26 has a first region 261 and a second region 262 connected with the first region 261, and the thickness of the second region 262 is greater than the thickness of the first region 261, so that the extending portion 26 can improve the stability of the mounting between the mounting portion 22 and the locking portion 24. The connecting column 242 is provided with the stop surface 2421 at a position corresponding to the second region 262, and the stop surface 2421 is a plane, and the surface of the connecting column 242 is an arc surface except the stop surface 2421. When the locking portion 24 is connected with the mounting portion 22, the second region 262 of the extending portion 26 clampingly fixes the stop surface 2421 of the connecting column 242, which can realize the fixed connection between the mounting portion 22 and the locking portion 24, and can also avoid the rotation of the locking portion 24 compared with the mounting portion 22.

[0116] It can be understood that the mounting portion 22 and the extending portion 26 can be an integrally formed structure.

[0117] Figure 7 It is shown that Figure 1 In the power converter 001 shown, the connecting member 600 is connected with the positioning member 20 through the circuit board 500, and the partial cross-sectional view is shown.

[0118] Please refer to Figure 7When the connecting terminal 23 and the mounting portion 22 form the second accommodating cavity 25, the upper end of the first connecting portion 231 of the connecting terminal 23 abuts against the upper surface of the mounting portion 22, and the mounting portion 22 can support the connecting terminal 23. In an embodiment, the distance that the mounting portion 22 extends away from the bottom plate 21 can be set according to the connecting member 600 that cooperates with the locking portion 24. For example, when the connecting terminal 23 needs to be connected to the circuit board 500, the connecting member 600 can be used to fix the connecting terminal 23 to the circuit board 500. After the connecting member 600 passes through one side of the circuit board 500 and the housing 400 and continues to extend toward the connecting terminal 23 and the locking portion 24, the locking portion 24 is locked with the connecting member 600, and then the circuit board 500 is connected to the inductor device 100 to achieve physical fixation of the inductor device 100 on the housing 400.

[0119] In an embodiment, the distance that the mounting portion 22 extends is greater than the distance that the connecting member 600 extends into the locking portion 24, so that the second accommodating cavity 25 can accommodate the connecting member 600, and avoid interference between the connecting member 600 and the bottom plate 21 due to the short extension distance of the mounting portion 22, so that the locking portion 24 and the connecting member 600 cannot be locked.

[0120] In an embodiment, the locking portion 24 can be a press-in nut, which can be directly installed on the connecting terminal 23 and directly used after installation, and is simple to install and easy to operate. It can be understood that in other embodiments, the locking portion 24 can also be replaced by other structures having the same function or effect.

[0121] Please refer to Figure 5 and Figure 6 In an embodiment, the positioning member 20 further includes a stop portion 27, and the connecting terminal 23 is further provided with a second through hole 234. The stop portion 27 is arranged in the space surrounded by the mounting portion 22, or the stop portion 27 is arranged on the periphery of the mounting portion 22, the stop portion 27 passes through the second through hole 234, and the stop portion 27 can abut against the connecting terminal 23 along the passing direction. The stop portion 27 is arranged on the bottom plate 21, the lower end of the first connecting portion 231 of the connecting terminal 23 is provided with the second through hole 234, the stop portion 27 passes through the second through hole 234 and can abut against the first connecting portion 231. By arranging the stop portion 27 and making the stop portion 27 pass through and abut against the first connecting portion 231, the installation position of the connecting terminal 23 is fixed.

[0122] For example, when the connecting terminal 23 needs to be installed with the mounting portion 22 through the locking portion 24, the connecting terminal 23 can not be aligned along the up-down direction and can be inclined. In this case, the stop portion 27 can be inserted into the second through hole 234 and abut against the connecting terminal 23, so that the placement position of the connecting terminal 23 can be corrected to align the position of the connecting terminal 23. Alternatively, the connecting terminal 23 can be corrected by the stop portion 27 due to the dimensional tolerance between the connecting terminal 23 and the mounting portion 22 during the manufacturing of the positioning member 20. The stop portion 27 can correct the position of the connecting terminal 23 and facilitate the installation between the mounting portion 22 and the locking portion 24 after the connecting terminal 23 is placed.

[0123] It can be understood that in other embodiments, when the connecting terminal 23 is assembled with the mounting portion 22, the stop portion 27 and the second through hole 234 matched with the stop portion 27 can be cancelled.

[0124] Referring to Figure 5 and Figure 6 In an embodiment, the positioning member 20 further comprises a cable tie 28. The cable tie 28 is arranged on the side of the connecting terminal 23 away from the locking portion 24, and the cable tie 28 is provided with an opening 281 through which a cable can enter the cable tie 28 to be fixed. The cable tie 28 is arranged on the bottom plate 21 and located on the side of the second connecting portion 232 of the connecting terminal 23. The cable tie 28 is provided with the opening 281, and when the cable needs to be fixed, the cable can be installed into the cable tie 28 from the position of the opening 281, and the cable tie 28 clamps the cable. In addition, the profile of the cable tie 28 is the same as that of the cable to better fix the cable and avoid the cable from shaking in the cable tie 28.

[0125] By arranging the cable tie 28 on the side of the connecting terminal 23, when the connecting terminal 23 fixes the cable, the cable tie 28 can clamp the cable, so that the end of the cable is prevented from being deviated due to stress and pulling during the connection with the connecting terminal 23.

[0126] It can be understood that the positioning member 20 is provided with a plurality of stop portions 27 and a plurality of cable ties 28, and each stop portion 27 and each cable tie 28 is matched with a connecting terminal 23.

[0127] Referring to Figure 5In an embodiment, the box body 10 is provided with a first positioning part 15, and the positioning member 20 is provided with a second positioning part 29. The first positioning part 15 is connected with the second positioning part 29 to fix the positioning member 20 to the box body 10. The first positioning part 15 is arranged on the inner wall surface of the connecting wall 11, and the second positioning part 29 is arranged at the edge position of the bottom plate 21. The first positioning part 15 can be a positioning column, and the second positioning part 29 can be a positioning hole. The positioning column passes through the positioning hole, so that the shell can limit the positioning member 20. In order to make the connection between the box body 10 and the positioning member 20 more stable, the positioning column and the positioning hole can be in interference fit.

[0128] It can be understood that, in other embodiments, the first positioning part 15 and the second positioning part 29 can also be replaced by other fixed ways. For example, the first positioning part 15 can be a positioning hole, and the second positioning part 29 can be a positioning column. It can also be understood that the first positioning part 15 and the second positioning part 29 can both be positioning holes, and the first positioning part 15 and the second positioning part 29 are locked by a fastening structure, such as a screw. Alternatively, the first positioning part 15 can be a buckle, and the second positioning part 29 can also be a buckle. The box body 10 can be fixedly connected with the positioning member 20 through the cooperation between the buckle and the buckle hole.

[0129] Please refer to Figure 5 In an embodiment, the inductor device 100 is provided with a first fixing part 16, and the shell 400 is provided with a second fixing part (not shown in the figure). The first fixing part 16 is connected with the second fixing part to fix the inductor device 100 to the shell 400. The first fixing part 16 is arranged on the box body 10, and the first fixing part 16 is arranged on the inner wall surface of the connecting wall 11. The second fixing part is arranged on the inner wall surface of the shell 400 and corresponds to the position of the first fixing part 16.

[0130] In an embodiment, the first fixing part 16 can be a fixing column, and the second fixing part can be a fixing hole. The fixing column passes through the fixing hole, so that the box body 10 can be installed in the shell 400. In order to make the connection between the box body 10 and the shell 400 more stable, the clamping part 14 on the box body 10 can be clamped on the structure in the shell 400. It can be understood that the fixing column and the fixing hole can be in interference fit when cooperating, so that the box body 10 and the shell 400 can be directly connected through the fixing column and the fixing hole.

[0131] It can be understood that in other embodiments, the first fixing part 16 and the second fixing part can also be replaced by other fixing modes. For example, the specific structure between the first fixing part 16 and the second fixing part described above can be replaced, the first fixing part 16 is a fixing hole, and the second fixing part is a fixing column. It can also be understood that the first fixing part 16 and the second fixing part can both be positioning holes, and the first fixing part 16 and the second fixing part are locked by a fastening structure such as a screw. Alternatively, the first fixing part 16 can be a buckle, and the second fixing part can be a buckle, so that the box body 10 can be fixedly connected with the shell 400 through the cooperation between the buckle and the card hole.

[0132] Figure 8 A perspective structural schematic diagram of the positioning piece 20 in the inductance device 100 of another embodiment of the present application is shown.

[0133] Please refer to Figure 8 The positioning piece 20 in the inductance device 100 of another embodiment of the present application is substantially the same as the positioning piece 20 shown in Figure 5 The difference is that the connecting terminal 23 is provided with a first through hole 233, and the locking part 24 is arranged on the bottom wall of the mounting part 22 and corresponds to the first through hole 233, so that the locking part 24 can be connected with the connecting piece 600 penetrating through the first through hole 233. The bottom plate 21 can be the bottom wall of the mounting part 22, or the bottom wall of the mounting part 22 and the bottom plate 21 are integrally formed. The distance of the mounting part 22 extending away from the bottom plate 21 in this embodiment can be the same as the height of the locking part 24, so as to facilitate the fixation of the locking part 24, and the stability of the arrangement of the locking part 24 is also more reliable. The first through hole 233 provided on the connecting terminal 23 corresponds to the locking part 24, and when the connecting piece 600 is connected with the locking part 24 by penetrating through the connecting terminal 23, the connection between the connecting terminal 23 and the locking part 24 is realized, which also plays a role in pre-fixing the cable.

[0134] In order to adapt to the reduced distance of the extension of the locking part 24, the connecting terminal 23 forms a second accommodating cavity 25 along the up-down direction, and the distance of the extension of the connecting terminal 23 is also reduced accordingly. In an embodiment, the connecting terminal 23 can adopt an OT terminal, and the locking part 24 can be a nut. When assembling the inductance device 100, the locking part 24 can be directly arranged on the mounting part 22 and can be fixed by the mounting part 22. Compared with arranging the locking part 24 on the connecting terminal 23 and then connecting with the mounting part 22, this assembly step is more simple, and in the process of assembly, the worker can directly arrange the locking part 24 on the mounting part 22, thereby improving the assembly speed and reducing the labor cost.

[0135] Since the distance of the connecting terminal 23 extending away from the bottom plate 21 is reduced, the probability of the connecting terminal 23 not being aligned during the mounting with the mounting portion 22 is reduced, and thus in this embodiment, the stop portion 27 shown in FIG. 6 can be omitted. Figure 5

[0136] By using the OT terminal as the connecting terminal 23 and the nut provided on the bottom wall of the mounting portion 22, the two structures are inexpensive, thereby reducing the cost of manufacturing the inductor device 100. It can be understood that in other embodiments, the connecting terminal 23 and the locking portion 24 can also be replaced by other structures having equivalent functions or effects.

[0137] The connecting terminal 23 in the above embodiment can be made of a conductive material to realize the electrical connection between the inductor device 100 and the power device 550. The connecting terminal 23 can be made of a metal material, such as copper, aluminum, iron, etc. Alternatively, the connecting terminal 23 can also be made of an alloy material, such as an alloy of nickel and copper.

[0138] The inductor device 100 of the above embodiment is used to fix the inductor and the cable. The inductor is fixed in the box body 10, one end of the cable is electrically connected to the inductor, and the other end can pass through the through hole 211 of the positioning member 20 and be electrically connected to the connecting terminal 23. The positioning member 20 can pre-fix the cable, and each cable can be electrically connected to the connecting terminal 23, without spending more time to comb the bundled cables, and the cable can be directly connected to the connecting terminal 23.

[0139] The positioning member 20 can be an integrally formed structure. The positioning member 20 can be made by injection molding.

[0140] Figure 9 The inductor device 100 is shown in FIG. 6. Figure 3 The inductor device 100 is shown in FIG. 6.

[0141] Please refer to Figure 9 The inductor 700 is arranged in the accommodation space 12 of the box body 10, and the other end of the cable 800 is electrically connected to the connecting terminal 23. The inductor 700 is arranged in the box body 10 and is limited by the connecting wall 11 to improve the shaking of the inductor 700. One end of the cable 800 is electrically connected to the inductor 700, and the other end is electrically connected to the connecting terminal 23 after passing through the through hole 211 of the positioning member 20.

[0142] ​In an embodiment, the receiving space 12 of the box body 10 is partitioned into three receiving cavities by the partition 13, and each receiving cavity is provided with an inductor 700. The cable 800 can pass through the through hole 211 when connected with the connecting terminal 23. For example, when the connecting terminal 23 of the inductor device 100 farthest away needs to be electrically connected, the cable 800 can pass through the through hole 211 to be connected with the connecting terminal 23 after being connected with the inductor 700. At this time, the cable 800 passing through the through hole 211 can improve the situation that the cable 800 needs to be wound, and the cable 800 passing out of the through hole 211 can also play a role of combing to improve the situation that the cable 800 is in disorder. For another example, when the inductor 700 close to the connecting terminal 23 needs to be electrically connected, the cable 800 can be directly connected with the connecting terminal 23 without passing through the through hole 211 after being connected with the inductor 700.

[0143] It can be understood that, in other embodiments, the number of receiving cavities partitioned by the receiving space 12 is not limited to this, and can be set according to specific needs. For example, the receiving space 12 can be partitioned into four, five or the like receiving cavities.

[0144] Figure 10 A perspective view of the inductor device 100 is shown. Figure 9 A perspective view of the inductor device 100 is shown.

[0145] Please refer to Figure 10 In an embodiment, the inductor device 100 further comprises a glue body 30. The glue body 30 is arranged in the receiving space 12, and the glue body 30 covers part of the inductor 700 and is in contact with the inductor 700. After the inductor 700 and the cable 800 are arranged, the box body 10 is filled with molten glue body 30, and the inductor 700 can be cooled after the glue body 30 is solidified.

[0146] In an embodiment, the inductor 700 and the cable 800 are arranged and connected respectively, and then the glue body 30 is filled into the box body 10. Alternatively, after the inductor 700 is arranged, the end of the cable 800 to be connected with the connecting terminal 23 is led out of the receiving space 12 or the through hole 211, and then the glue body 30 is filled into the box body 10, and then the cable 800 is connected with the connecting terminal 23. In an embodiment, the glue body 30 is a heat-conducting glue. By arranging the heat-conducting glue on the surface of the inductor 700, on the one hand, the stability of the inductor 700 can be improved after the heat-conducting glue is solidified, and on the other hand, the heat generated by the inductor 700 can be dissipated.

[0147] In an embodiment, the position filled by the glue body 30 does not exceed the end of the positioning member 20, that is, along the length direction of the box body 10, the arrangement of the glue body 30 does not exceed the edge of the positioning member 20, so as to improve the problem that the glue body 30 after being solidified interferes with the disassembly of the positioning member 20. In an embodiment, the inductor device 100 further comprises a glue body 30. The glue body 30 is arranged in the receiving space 12, and the glue body 30 covers part of the inductor 700 and is in contact with the inductor 700. After the inductor 700 and the cable 800 are arranged, the box body 10 is filled with molten glue body 30, and the inductor 700 can be cooled after the glue body 30 is solidified.

[0148] Please refer to Figure 7 The circuit board 500 is arranged on the through hole 45, and further arranged on the positioning member 20 exposed on the through hole 45. The connecting member 600 is connected through the circuit board 500 and the locking portion 24. The circuit board 500 is arranged on the opposite sides of the bottom end of the shell 400. The circuit board 500 is provided with a connecting hole (not shown in the figure). The connecting hole corresponds to the first through hole 233 of the connecting terminal 23. The connecting member 600 can be arranged through the connecting hole and the first through hole 233 to be connected with the locking portion 24. One end of the conductive circuit on the circuit board 500 is led to the connecting hole. The power device 550 on the circuit board 500 can be arranged on the circuit board 500 by welding. The other end of the conductive circuit on the circuit board 500 can be electrically connected with the power device 550. The power device 550 can include but is not limited to resistance, capacitance, transformer, diode, etc.

[0149] In an embodiment, the connecting member 600 is a fastening screw, and the connecting member 600 is threadedly connected with the locking portion 24. The connecting member 600 is also a conductive member, so that the connecting member 600 and the locking portion 24 are physically connected to fix the inductor device 100 and the circuit board 500. At the same time, the connecting member 600 and the locking portion 24 can also be electrically connected, so that the power device 550 arranged on the circuit board 500 can be electrically connected with the inductor in the inductor device 100. It can be understood that in other embodiments, the connecting member 600 can also be replaced by other structures with equivalent functions or effects.

[0150] When connecting the cable 800 in the inductor device 100 with the circuit board 500, the cable 800 does not need to be led out from the box body 10 of the inductor device 100 and then led into the shell 400 of the power converter 001 to be connected with the circuit board 500. The inductor device 100 provided with the inductor 700 and the cable 800 can be directly installed in the shell 400 of the power converter 001. The circuit board 500 is fixed by the connecting terminal 23 and the connecting member 600, and then the connecting terminal 23 is connected with the cable 800, so that the inductor 700 can be electrically connected with the components on the circuit board 500 through the cable 800. The power converter 001 has simple structure, convenient installation, and does not need to spend a long time, which improves the installation efficiency. For example, the inductor device 100 is arranged at the lower end of the shell 400. When connecting the circuit board 500 arranged in the shell 400 with the inductor 700 in the inductor device 100, the circuit board 500 is locked on one side of the inductor device 100 by the connecting member 600 and the locking portion 24, so that the components on the circuit board 500 can be electrically connected with the inductor 700.

[0151] In an embodiment, the inductor device can also be assembled in an automated manner. The inductor device 100 assembled with the inductor 700 can be directly mounted outside the housing 400 of the power converter 001 and connected to the circuit board 500.

[0152] Please refer to Figure 1 and Figure 2 In an embodiment, the power converter 001 further comprises a heat dissipation structure 900. The heat dissipation structure 900 is arranged outside one side of the housing 400 and partially or entirely surrounds the inductor device 100. The heat dissipation structure 900 is in thermal contact with the power device 550 for dissipating heat of the power device 550.

[0153] In an embodiment, the power converter 001 comprises two inductor devices 100. The heat dissipation structure 900 is arranged between the two inductor devices 100. The heat dissipation structure 900 comprises a heat sink and a fan for dissipating heat of the power device 550 in the power converter 001. The heat dissipation structure 900 can be in thermal contact with the power device 550 in the following manner. Another through hole 46 can be formed in one side of the housing 400. The heat sink in the heat dissipation structure 900 can extend into the housing 400 and be attached to one side of the circuit board 500 in combination with the fan to dissipate heat of the power device 550 arranged on the circuit board 500. Alternatively, the heat dissipation structure 900 can further comprise a thermal conductive silicone grease. The thermal conductive silicone grease can be in contact with the power device 550 to dissipate heat of the power device 550.

[0154] It can be understood that the heat dissipation structure 900 can be in thermal contact with the power device 550 in other manners having equivalent effects. For example, the heat dissipation structure 900 can comprise a thermal conductive sheet. The thermal conductive sheet can be in contact with the power device 550 to dissipate heat of the power device 550.

[0155] In addition, the heat dissipation structure 900 can also dissipate heat of the inductor device 100. The heat dissipation structure 900 and the inductor device 100 are arranged on the same side of the housing 400. The air flow generated by the fan in the heat dissipation structure 900 can flow to the position of the inductor device 100 on the same side to dissipate heat generated by the inductor in the inductor device 100.

[0156] In an embodiment, part of the heat dissipation structure 900 can be arranged around the inductor device 100. It can be understood that the power converter 001 can comprise a plurality of heat dissipation structures 900. The plurality of heat dissipation structures 900 can entirely surround the inductor device 100.

[0157] The power converter 001 in the embodiment can improve the length of the cable 800 required to be arranged, realize the connection between the inductor 700 and the circuit board 500 in the power converter 001, and improve the production efficiency of the power converter 001 by using the assembled inductor device.

[0158] The above merely provides the specific implementation of the present application, but the protection scope of the present application is not limited to this, any change or replacement within the technical scope disclosed in the present application should be covered in the disclosure scope of the present application.

Claims

1. A power converter, comprising a housing, power devices, a circuit board, connectors, and an inductor, characterized in that, The power device is mounted on the circuit board; A first accommodating cavity is formed inside the housing for accommodating the circuit board and the power device, and a through hole is provided on the side of the housing facing the circuit board; The inductor is disposed in the housing, and the inductor is wholly or partially exposed outside the housing and covers the through hole; The inductor device includes a housing and a positioning component. The housing is mounted on the casing and has a receiving space capable of accommodating the inductor. The positioning component includes a base plate, a mounting portion, a connecting terminal, and a locking portion. The base plate is located on the housing, the mounting portion is located on the base plate, and the connecting terminal is located on the mounting portion, forming a second receiving cavity between the mounting portion and the connecting terminal. One end of the connecting terminal abuts against the mounting portion and has a first through hole. The locking portion is located within the second receiving cavity and is located in the first through hole, or the locking portion is located in the mounting portion and corresponds to the first through hole. The mounting portion clamps and fixes the locking portion, and the locking portion is connected to the connecting terminal, which can fix a cable. The connector extends from the circuit board within the housing toward the inductor and passes through one side of the housing; The connector, the locking part, and the connecting terminal are all conductive. The connector passes through the first through hole and is inserted into the locking part, thereby physically and electrically connecting with the locking part, so as to physically connect the inductor to the housing and electrically connect the power device to the inductor.

2. The power converter as described in claim 1, characterized in that, The outer side of the housing is also provided with a heat dissipation structure, which is partially or entirely surrounding the inductor and is thermally connected to the power device for dissipating heat from the power device.

3. The power converter as described in claim 1, characterized in that, The bottom plate is parallel to the wall surface of the housing with through holes.

4. The power converter as described in claim 3, characterized in that, The locking part is located in the first through hole, and the first through hole and the locking part are fitted with an interference fit.

5. The power converter as described in claim 3, characterized in that, The locking part is located on the bottom wall of the mounting part.

6. The power converter as described in any one of claims 4 or 5, characterized in that, The positioning element further includes an extension, and the locking part has a stop surface; The extension is provided on the wall surface of the mounting portion facing the locking portion, and the extension clamps the stop surface of the locking portion.

7. The power converter as described in claim 3, characterized in that, The positioning component also includes a stop portion, and the connecting terminal is provided with a second through hole; The stop portion is disposed within the space enclosed by the mounting portion, or the stop portion is disposed on the periphery of the mounting portion, the stop portion passes through the second through hole, and the stop portion can abut against the connecting terminal along the through direction.

8. The power converter as described in claim 3, characterized in that, The positioning component also includes a wire harness buckle; The cable tie is located on the side of the connecting terminal away from the locking part, and the cable tie has an opening that allows the cable to enter the cable tie to secure the cable.

9. The power converter as described in claim 3, characterized in that, The positioning component has a through hole, and the receiving space communicates with the through hole, through which the cable can pass.

10. The power converter as described in claim 3, characterized in that, The box body is provided with a first positioning part, and the positioning member is provided with a second positioning part. The first positioning part is connected to the second positioning part to fix the positioning member to the box body.

11. The power converter as claimed in claim 1, characterized in that, The inductor is provided with a first fixing part, and the housing is provided with a second fixing part. The first fixing part is connected to the second fixing part to fix the inductor to the housing.

12. The power converter as claimed in claim 1, characterized in that, The housing is provided with two through holes, and the power converter includes two inductors; The two through holes are located on the same side of the housing, each through hole corresponds to one of the inductors, and the two inductors are spaced apart.

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