Charging converter

Abstract

The charging converter comprises an input end, an output end, a plastic supporting frame, a metal connecting frame and a pin column assembly, the supporting frame is provided with a first surface, a second surface, a first positioning hole and a second positioning hole, the first positioning hole and the second positioning hole penetrate through the two surfaces, the first surface is provided with a first clamping groove and a second clamping groove, and the second surface is provided with a third clamping groove and a fourth clamping groove; the connecting frame comprises a first metal connecting frame and a second metal connecting frame, two ends of the first metal connecting frame are arranged in the first clamping groove and the fourth clamping groove, and two ends of the second metal connecting frame are arranged in the second clamping groove and the third clamping groove; the pin column assembly comprises a first pin column and a second pin column which are respectively inserted into the first positioning hole and the second positioning hole; one end of the first pin column penetrates through the first end of the first metal connecting frame and extends to the input end, and the other end penetrates through the second end of the second metal connecting frame and extends to the output end; one end of the second pin column penetrates through the first end of the second metal connecting frame and extends to the input end, and the other end of the second pin column penetrates through the second end of the first metal connecting frame and extends to the output end. The size is reduced, and the connection stability is enhanced.

Description

TECHNICAL FIELD

[0001] The present application relates to the electric vehicle electrical appliance technical field, especially relates to a charging converter. BACKGROUND

[0002] The existing market's adapter, using ready-made accessories and wires, is assembled together, so that the volume is very large, very long, and very heavy; in addition, when charging, the charging gun head is connected, which causes the adapter to be too long due to the connection of the charging gun and the adapter, and it is easy to collide with other gun heads and cables; in addition, the weight and swing of the cable can cause loosening and poor connection, which can cause risks such as electric leakage, fire alarm, and operation failure.

[0003] Therefore, it is necessary to provide a charging converter to solve the above problems. CONTENT OF THE INVENTION

[0004] The embodiment of the present application aims to provide a charging converter to reduce the volume of the charging converter and enhance the stability of the connection.

[0005] To solve the above technical problems, one technical scheme adopted by the present application is to provide an electric converter, comprising an input end and an output end, and the charging converter further comprises a plastic support frame, a metal connecting frame and a pin column assembly, the plastic support frame has a first surface and a second surface arranged oppositely, the first surface has a first clamping groove and a second clamping groove arranged symmetrically, the second surface is arranged with a third clamping groove and a fourth clamping groove corresponding to the positions of the first clamping groove and the second clamping groove, the support frame comprises a first positioning hole and a second positioning hole arranged symmetrically, and the first positioning hole and the second positioning hole both penetrate the first surface and the second surface; the metal connecting frame is wound on the plastic support frame, the metal connecting frame comprises a first metal connecting frame and a second metal connecting frame, a first end of the first metal connecting frame is clamped in the first clamping groove, a second end of the first metal connecting frame is clamped in the fourth clamping groove, a first end of the second metal connecting frame is clamped in the second clamping groove, and a second end of the second metal connecting frame is clamped in the third clamping groove; the pin column assembly comprises a first pin column and a second pin column, the first pin column is inserted into the first positioning hole, a first end of the first pin column penetrates the first end of the first metal connecting frame and extends to the input end, and a second end of the first pin column penetrates the second end of the second metal connecting frame and extends to the output end; the second pin column is inserted into the second positioning hole, a first end of the second pin column penetrates the first end of the second metal connecting frame and extends to the input end, and a second end of the second pin column penetrates the second end of the first metal connecting frame and extends to the output end.

[0006] In one or more / any optional embodiments above, the first pin post and the second pin post are laser welded to the first metal connecting frame and the second metal connecting frame.

[0007] In one or more / any optional embodiments above, the plastic support frame includes a first notch and a second notch, the first notch and the second notch both penetrating the first surface and the second surface; the first metal connecting frame is clamped in the first notch, and the second metal connecting frame is clamped in the second notch.

[0008] In one or more / any optional embodiments above, the first pin post includes a first upper pin post and a first lower pin post; the second end of the first upper pin post is inserted into the first positioning hole through the first end of the first metal connecting frame, and the first end of the first upper pin post extends to the input end; the first end of the first lower pin post is inserted into the first positioning hole through the second end of the second metal connecting frame, and the second end of the first lower pin post extends to the output end.

[0009] In one or more / any optional embodiments above, the housing includes a first housing and a second housing that are buckled to each other, the first housing and the second housing jointly enclose a receiving space, the input end is formed in the first housing, and the output end is formed in the second housing; the plastic support frame, the first metal connecting frame, and the second metal connecting frame are all received in the receiving space.

[0010] In one or more / any optional embodiments above, the first housing has a first accommodating groove and a second accommodating groove, the first end of the first upper pin post is received in the first accommodating groove, and the first end of the second pin post is received in the second accommodating groove; the second housing is provided with a first receiving groove and a second receiving groove at positions corresponding to the first accommodating groove and the second accommodating groove, the second end of the first lower pin post is received in the first receiving groove, and the second end of the second pin post is received in the first receiving groove.

[0011] In one or more / any optional embodiments above, the plastic support frame includes a hollow part, the hollow part is arranged between the first clamping groove and the second clamping groove, and the hollow part is arranged between the first notch and the second notch.

[0012] The pin post assembly comprises a third pin post, a fourth pin post and a fifth pin post, the third pin post, the fourth pin post and the fifth pin post are arranged in the hollow part, the first end of each of the third pin post, the fourth pin post and the fifth pin post extends to the input end, and the second end of each of the third pin post, the fourth pin post and the fifth pin post extends to the output end; wherein the third pin post, the fourth pin post and the fifth pin post are arranged in a triangle, and the first pin post, the second pin post and the third pin post are located on the same horizontal plane.

[0013] In one or more / any optional embodiments of the above, the pin post assembly comprises a sixth pin post and a seventh pin post, the plastic support frame is provided with a third positioning hole and a fourth positioning hole arranged symmetrically; the sixth pin post is arranged in the third positioning hole, and the first end of the sixth pin post extends to the input end, and the second end of the seventh pin post extends to the output end; the seventh pin post is arranged in the fourth positioning hole, and the first end of the seventh pin post extends to the input end, and the second end of the seventh pin post extends to the output end.

[0014] In one or more / any optional embodiments of the above, the plastic support frame comprises a cross beam arranged between the two side walls of the hollow part, and the third positioning hole and the fourth positioning hole are arranged on the cross beam.

[0015] In one or more / any optional embodiments of the above, a temperature control device is arranged, the plastic support frame further comprises a slot, and the temperature control device is arranged in the slot; wherein the two ends of the temperature control device are connected with the first end of the sixth pin post and the second end of the seventh pin post respectively, and the second end of the sixth pin post is connected with the first end of the seventh pin post.

[0016] In one or more / any optional embodiments of the above, the shell comprises a sealing ring arranged at the connection between the first shell and the second shell.

[0017] In the charging converter in the embodiments of the present application, on the one hand, the plastic support frame can provide support force, which is conducive to increasing the stability of the charging converter and facilitating installation; on the other hand, the metal connecting frame can reduce the occupied area of the cable, which is conducive to reducing the volume of the charging converter.

[0018] The above description is only a summary of the technical solutions of the present application, in order to more clearly understand the technical means of the present application, the specific embodiments of the present application can be implemented according to the content of the description, and in order to make the above and other purposes, characteristics and advantages of the present application more obvious and easy to understand, the following specific embodiments of the present application are described. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required to be used in the embodiments of the present application will be exemplarily described below. Obviously, the drawings described below are only some of the embodiments of the present application, and the exemplarily description does not constitute a limitation on the embodiments. The elements with the same reference numerals in the drawings represent the similar elements, unless otherwise specified. The drawings do not constitute a proportional limitation.

[0020] Figure 1 is a structural schematic diagram of a charging converter of the present application;

[0021] Figure 2 is Figure 1 is a structural schematic diagram of another view of the charging converter shown in the figure;

[0022] Figure 3 is Figure 1 is an exploded schematic diagram of the charging converter shown in the figure;

[0023] Figure 4 is Figure 3 is a structural schematic diagram of a plastic support frame in the charging converter shown in the figure;

[0024] Figure 5 is Figure 4 is a structural schematic diagram of another view of the plastic support frame shown in the figure;

[0025] Figure 6 is Figure 4 is an installation schematic diagram of the plastic support frame and a metal connecting frame shown in the figure;

[0026] Figure 7 is Figure 5 is an installation schematic diagram of the plastic support frame and the metal connecting frame shown in the figure;

[0027] Figure 8 is Figure 1 is a structural schematic diagram of the charging converter without a shell shown in the figure;

[0028] Figure 9 is Figure 1 is a sectional view of the shell in the charging converter shown in the figure;

[0029] Figure 10 is Figure 1 is an exploded schematic diagram of the shell and the plastic support frame in the charging converter shown in the figure;

[0030] Figure 11 is a connection schematic diagram of a temperature control element;

[0031] Figure 12 is an installation schematic diagram of the plastic support frame, the metal connecting frame and a first pin column. DETAILED DESCRIPTION

[0032] In order to facilitate the understanding of the present application, the present application will be described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element or one or more intervening elements can be present therebetween. When an element is described as "connected to" another element, it can be directly connected to the other element or one or more intervening elements can be present therebetween.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The description and drawings of this application, and the above abstract are incorporated herein by reference.

[0034] In the description of the embodiments of the present application, the terms "first", "second", and the like are used to distinguish between elements with similar functions, and are not intended to limit the scope of protection of the present application. In the description of the embodiments of the present application, the term "a plurality of" means two or more, unless otherwise specified.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The description and drawings of this application, and the above abstract are incorporated herein by reference.

[0036] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0037] In the prior art, the pins of the connection interface are ready-made components, and their connection with the internal devices is generally by welding or pressing technology, resulting in waste of connection space. Therefore, the present application provides a charging converter for being arranged on a charging port of a vehicle or a port of a charging pile or other forms of charging equipment for providing electric energy to a new energy vehicle, facilitating the connection of external electrical appliances to the new energy vehicle.

[0038] As Figure 1 and Figure 2As shown, the charging converter 100 provided by the embodiment of the present application can support single and more than three charging converters, including an input end 101 and an output end 102, and the input end 101 and the output end 102 are each provided with seven connecting pin columns.

[0039] Specifically, as shown, Figure 3 The charging converter 100 in the embodiment of the present application includes a shell 10, a plastic support frame 20, a metal connecting frame 30, and a pin column assembly 40, and the plastic support frame 20, the metal connecting frame 30, and the pin column assembly 40 are all accommodated in the shell 10. The input end 101 and the output end 102 are formed in the shell 10. As shown, Figure 4 and Figure 5 The plastic support frame 20 has opposite first and second surfaces 201 and 202, the first surface 201 has symmetrically arranged first and second clamping grooves 210 and 220, and the second surface 202 is arranged with third and fourth clamping grooves 230 and 240 at positions corresponding to the first and second clamping grooves 210 and 220. The plastic support frame 20 further includes symmetrically arranged first and second positioning holes 250 and 260. As shown, Figure 6 and Figure 7 The metal connecting frame 30 is wound around the plastic support frame 20 and includes a first metal connecting frame 30a and a second metal connecting frame 30b. The first end 31a of the first metal connecting frame 30a is clamped in the first clamping groove 210, the second end 32a of the first metal connecting frame 30a is clamped in the fourth clamping groove 240, the first end 31b of the second metal connecting frame 30b is clamped in the second clamping groove 220, and the second end 32b of the second metal connecting frame 30b is clamped in the third clamping groove 230. As shown, Figure 8 The pin column assembly 40 includes a first pin column 410 and a second pin column 420. The first pin column 410 is arranged in the first positioning hole 250, and the first end of the first pin column 410 penetrates the first end 31a of the first metal connecting frame 30a and extends to the input end 101 of the shell 10, and the second end of the first pin column 410 penetrates the second end 32a of the second metal connecting frame 30b and extends to the output end 102 of the shell 10. The second pin column 420 is arranged in the second positioning hole 260, and the first end of the second pin column 420 penetrates the first end 31b of the second metal connecting frame 30b and extends to the input end 101 of the shell 10, and the second end of the second pin column 420 penetrates the second end 32a of the first metal connecting frame 30a and extends to the output end 102 of the shell 10. The first and second metal connecting frames 30a and 30b are electrically connected to the plastic support frame 20. The provision of the plastic support frame can provide support for the charging converter, enhance stability, and facilitate installation. In addition, the provision of the metal connecting frame can reduce the occupied area of the cable, reduce the connection distance of the pin columns, facilitate the reduction of the volume of the charging converter, and reduce the loss.

[0040] In some embodiments, the input end 101 is configured to be connected with a charging gun head, and the output end 102 is configured to be connected with a charging port of a device.

[0041] In some embodiments, as shown in Figure 9 and Figure 10 , the housing 10 includes a first housing 110 and a second housing 120 which are buckled to each other and jointly enclose a receiving space 100, and the above-mentioned plastic support frame 20, the first metal connecting frame 30a and the second metal connecting frame 30b are all received in the receiving space 100. The input end 101 is formed on the first housing 110, and the output end 102 is formed on the second housing 120.

[0042] In some embodiments, the first housing 110 has a first accommodating groove 111 and a second accommodating groove 112, and the second housing 120 is provided with a first receiving groove 121 and a second receiving groove 122 at positions corresponding to the first accommodating groove 111 and the second accommodating groove 112. The first end of the first pin column 410 is received in the first accommodating groove 111, and the second end of the first pin column 410 is received in the first receiving groove 121; the first end of the second pin column 420 is received in the second accommodating groove 112, and the second end of the second pin column 420 is received in the second receiving groove 122.

[0043] In some embodiments, as shown in Figure 4 and Figure 5 , the plastic support frame 20 is substantially disc-shaped.

[0044] In some embodiments, the plastic support frame 20 includes a first notch 270a and a second notch 270b, and the first notch 270a and the second notch 270b both penetrate the first surface 201 and the second surface 202. The first metal connecting frame 30a is clamped in the first notch 270a, and the second metal connecting frame 30b is clamped in the second notch 270b, so as to enhance the stability of the metal connecting frame 30.

[0045] In some embodiments, the first notch 270a and the second notch 270b are located at the periphery of the plastic support frame 20.

[0046] In some embodiments, the first metal connecting frame 30a and the second metal connecting frame 30b are both provided with holes through which the first pin column 410 and the second pin column 420 pass.

[0047] In some embodiments, the connections between the first pin post 410 and the second pin post 420 and the first metal connector 30a and the second metal connector 30b are laser welded. That is, the connections between the first pin post 410 and the first metal connector 30a and the second metal connector 30b are laser welded, and the connections between the second pin post 420 and the first metal connector 30a and the second metal wire frame connector 30b are laser welded, further enhancing the stability of the connection.

[0048] In some embodiments, such as Figure 4 and Figure 5 As shown, the plastic support frame 20 includes a hollow portion 280, which is located between the first slot 210 and the second slot 220, and also between the first notch 270a and the second notch 270b. The hollow portion 280 is used to accommodate other pin posts.

[0049] Specifically, such as Figure 8 As shown, the pin post assembly 40 includes a third pin post 430, a fourth pin post 440, and a fifth pin post 450. The third pin post 430, the fourth pin post 440, and the fifth pin post 450 are all located in the hollow portion 280, and the first end of each of the third pin post 430, the fourth pin post 440, and the fifth pin post 450 extends to the input end 101 of the first housing 110, and the second end of each of the third pin post 430, the fourth pin post 440, and the fifth pin post 450 extends to the output end 102 of the second housing 120.

[0050] Furthermore, such as Figure 10 As shown, the first housing 110 has a third receiving groove 113, a fourth receiving groove 114, and a fifth receiving groove 115. The first end of the third pin post 430 is received in the third receiving groove 113, the first end of the fourth pin post 440 is received in the third receiving groove 114, and the first end of the fifth pin post 450 is received in the fifth receiving groove 115. The second housing 120 has a third receiving groove 123, a fourth receiving groove 124, and a fifth receiving groove 125 at corresponding positions to the third receiving groove 113, the fourth receiving groove 114, and the fifth receiving groove 115. The second end of the third pin post 430 is received in the third receiving groove 123, the second end of the fourth pin post 440 is received in the fourth receiving groove 124, and the second end of the fifth pin post 450 is received in the fifth receiving groove 125.

[0051] In some embodiments, the third pin post 430, the fourth pin post 440, and the fifth pin post 450 are arranged in an equilateral triangle, and the first pin post 410, the second pin post 420, and the third pin post 430 are located on the same horizontal plane, thereby reducing assembly errors.

[0052] In some embodiments, the first pin column 410 is a neutral line (single / three-phase), and the second pin column 420 is an alternating current power supply (single / three-phase).

[0053] In some embodiments, the third pin column 430 is a ground line, and the fourth pin column 440 and the fifth pin column 450 are alternating current power supplies (three-phase).

[0054] In some embodiments, as shown in Figure 6 and Figure 8 , the pin column assembly 40 further includes a sixth pin column 460 and a seventh pin column 470. The plastic support frame 20 includes a third positioning hole 290a and a fourth positioning hole 290b arranged symmetrically. The sixth pin column 460 is inserted into the third positioning hole 290a, and the first end of the sixth pin column 460 extends to the input end 101 of the first shell, and the second end of the sixth pin column 460 extends to the output end 102 of the second shell; the seventh pin column 470 is inserted into the fourth positioning hole 290b, and the first end of the seventh pin column 470 extends to the input end 101 of the first shell, and the second end of the seventh pin column 470 extends to the output end 102 of the second shell. The third positioning hole and the fourth positioning hole are arranged symmetrically, which can reduce the assembly error.

[0055] Further, as shown in Figure 10 , the first shell 110 has a sixth accommodation groove 116 and a seventh accommodation groove 117, wherein the first end of the sixth pin column 460 is accommodated in the sixth accommodation groove 116, and the first end of the seventh pin column 470 is accommodated in the seventh accommodation groove 117. The second shell 120 is provided with a sixth accommodation groove 126 and a seventh accommodation groove 127 at positions corresponding to the sixth accommodation groove 116 and the seventh accommodation groove 117. The second end of the sixth pin column 430 is accommodated in the sixth accommodation groove 126, and the second end of the seventh pin column 470 is accommodated in the seventh accommodation groove 127.

[0056] In some embodiments, the plastic support frame 20 includes a crossbeam connected between the opposite two side walls of the hollow part 280 to enhance the stability of the plastic support frame 20. Further, the third positioning hole 290a and the fourth positioning hole 290b are arranged on the crossbeam.

[0057] In some embodiments, the sixth pin column 460 is a signal pin, and the seventh pin column 470 is a control guide pin.

[0058] In some embodiments, as shown in Figure 4 and 11 , the plastic support frame 20 further includes a slot 290c for accommodating the temperature control 50.

[0059] Specifically, as shown in Figure 11As shown, the two ends of the temperature control device 50 are connected to the first end of the sixth pin column 460 and the second end of the seventh pin column 470, and the first end of the seventh pin column is connected to the second end of the sixth pin column. The temperature control device 50 is used to detect temperature, so that when the temperature exceeds a preset value (for example, 85°), the charging signal (control guide pin) is cut off, and when the temperature is lower than the recovery value (the recovery value can be set according to the actual situation, for example, less than 85°), the signal will be restored.

[0060] It should be noted that the temperature control device 50 is connected to the first end of the sixth pin column 460 and the second end of the seventh pin column through a cable, and the first end of the seventh pin column is connected to the second end of the sixth pin column through a cable. Among them, the connection mode can be welding.

[0061] In some embodiments, the slot 290c is arranged on the cross beam and located between the third positioning hole 290a and the fourth positioning hole 290b.

[0062] In some embodiments, as shown in Figure 8 and Figure 12 As shown, the first pin column 410 includes a first upper pin column 410a and a first lower pin column 410b, the second end of the first upper pin column 410a is inserted into the first positioning hole 250 through the first end 31a of the first metal connecting frame 30a, and the first end of the first upper pin column 410a extends to the input end 101; the first end of the first lower pin column 410b is inserted into the first positioning hole 250 through the second end 32b of the second metal connecting frame 30b, and the second end of the first lower pin column 410b extends to the output end 102.

[0063] It can be understood that the second pin column, the third pin column, the fourth pin column, the fifth pin column, the sixth pin column and the seventh pin column can also be composed of two pin columns like the first pin column, or can be directly composed of one pin column.

[0064] In some embodiments, in order to facilitate the connection of the first shell 110 and the second shell 120, one end of the first shell 110 close to the second shell 120 is cylindrical, and one end of the second shell 120 close to the first shell 110 is also cylindrical.

[0065] In some embodiments, one of the first shell 110 and the second shell 120 is provided with a clamping tongue, and the other is provided with a fifth clamping groove, and the clamping tongue is clamped in the fifth clamping groove to realize the connection of the first shell 110 and the second shell 120. For example, as shown in Figure 9 and Figure 10 As shown, the first shell 110 is provided with a clamping tongue 118, and the second shell 120 is provided with a fifth clamping groove 128.

[0066] It can be understood that the clamping tongue and the fifth clamping groove are both annular.

[0067] In some embodiments, as shown in FIG. 1, the charging converter 100 comprises a shell 10, a metal connecting frame 20, a plastic support frame 30, a charging converter 40, a cable 50, and a protective sleeve 60. Figure 10 In some embodiments, as shown in FIG. 1, the shell 10 comprises a sealing ring 130 arranged at the joint of the first shell 110 and the second shell 120 to increase the sealing property of the shell 10.

[0068] In some embodiments, to further increase the protection performance of the charging converter, each pin post is provided with a protection ring near the first surface 201 and the second surface 202 of the plastic support frame 20. For example, the protection ring is a waterproof sealing ring.

[0069] In some embodiments, the shell 10 further comprises a protective sleeve 140 sleeved on the first shell 110 and abutting against the second shell 120, for example, the protective sleeve 140 is sleeved on the card tongue 118. Or the protective sleeve 140 is sleeved on the second shell 120 and abutting against the first shell 110.

[0070] In some embodiments, the protective sleeve 140 is made of plastic material, which can increase the hand feeling of the charging converter 100 on the one hand, and the protective sleeve 140 can further enhance the sealing property of the charging converter 100 on the other hand.

[0071] The charging converter of the embodiments of the present application can reduce the use of cables, save the occupied space, and be conducive to reducing the volume of the charging converter and facilitating carrying by the arrangement of the metal connecting frame. In addition, the arrangement of the plastic support frame can provide support force, which is conducive to increasing the stability of the charging converter and facilitating installation.

[0072] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; under the idea of the present application, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes of different aspects of the present application as described above, which are not provided in details for simplicity; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A charge converter comprising an input and an output, characterized in that, The charging converter comprises: a plastic support frame having a first surface and a second surface arranged oppositely, the first surface being provided with a first clamping groove and a second clamping groove arranged symmetrically, the second surface being provided with a third clamping groove and a fourth clamping groove arranged at positions corresponding to the first clamping groove and the second clamping groove, the support frame comprising a first positioning hole and a second positioning hole arranged symmetrically, the first positioning hole and the second positioning hole penetrating the first surface and the second surface; a metal connecting frame wound on the plastic support frame, the metal connecting frame comprising a first metal connecting frame and a second metal connecting frame, a first end of the first metal connecting frame being clamped in the first clamping groove, a second end of the first metal connecting frame being clamped in the fourth clamping groove, a first end of the second metal connecting frame being clamped in the second clamping groove, and a second end of the second metal connecting frame being clamped in the third clamping groove; a pin column assembly comprising a first pin column and a second pin column, the first pin column being inserted into the first positioning hole, a first end of the first pin column penetrating the first end of the first metal connecting frame and extending to the input end, and a second end of the first pin column penetrating the second end of the second metal connecting frame and extending to the output end, the second pin column being inserted into the second positioning hole, a first end of the second pin column penetrating the first end of the second metal connecting frame and extending to the input end, and a second end of the second pin column penetrating the second end of the first metal connecting frame and extending to the output end.

2. The charging converter according to claim 1, wherein: the first pin column and the second pin column are laser welded with the first metal connecting frame and the second metal connecting frame.

3. The charging converter according to claim 1, wherein: the plastic support frame comprises a first notch and a second notch, the first notch and the second notch penetrating the first surface and the second surface; the first metal connecting frame is clamped in the first notch, and the second metal connecting frame is clamped in the second notch.

4. The charging converter according to claim 1, wherein: the first pin column comprises a first upper pin column and a first lower pin column; the second end of the first upper pin column is inserted into the first positioning hole through the first end of the first metal connecting frame, and the first end of the first upper pin column extends to the input end; the first end of the first lower pin column is inserted into the first positioning hole through the second end of the second metal connecting frame, and the second end of the first lower pin column extends to the output end.

5. The charge converter of claim 4, wherein, The charging converter comprises a housing; the housing comprises a first housing and a second housing that are buckled to each other, the first housing and the second housing jointly enclosing a receiving space, the input end being formed in the first housing, and the output end being formed in the second housing; the plastic support frame, the first metal connecting frame and the second metal connecting frame are all received in the receiving space.

6. The charging converter according to claim 5, wherein: The first shell has a first accommodating groove and a second accommodating groove, the first end of the first upper pin column is accommodated in the first accommodating groove, and the first end of the second pin column is accommodated in the second accommodating groove. The second shell is provided with a first accommodating groove and a second accommodating groove at positions corresponding to the first accommodating groove and the second accommodating groove, the second end of the first lower pin column is accommodated in the first accommodating groove, and the second end of the second pin column is accommodated in the first accommodating groove.

7. The charging converter of claim 3, wherein The plastic support frame comprises a hollow part, the hollow part is arranged between the first clamping groove and the second clamping groove, and the hollow part is arranged between the first notch and the second notch. The pin column assembly comprises a third pin column, a fourth pin column and a fifth pin column, the third pin column, the fourth pin column and the fifth pin column are arranged in the hollow part, the first end of each of the third pin column, the fourth pin column and the fifth pin column extends to the input end, and the second end of each of the third pin column, the fourth pin column and the fifth pin column extends to the output end. The third pin column, the fourth pin column and the fifth pin column are arranged in a regular triangle, and the first pin column, the second pin column and the third pin column are located in the same horizontal plane.

8. The charging converter of claim 7, wherein The pin column assembly comprises a sixth pin column and a seventh pin column, and the plastic support frame is provided with a third positioning hole and a fourth positioning hole arranged symmetrically; The sixth pin column is inserted into the third positioning hole, the first end of the sixth pin extends to the input end, and the second end of the seventh pin extends to the output end; The seventh pin column is inserted into the fourth positioning hole, the first end of the seventh pin extends to the input end, and the second end of the seventh pin extends to the output end.

9. The charging converter of claim 8, wherein The plastic support frame comprises a cross beam arranged between the two side walls of the hollow part, and the third positioning hole and the fourth positioning hole are arranged on the cross beam.

10. The charge converter of claim 8, wherein, A temperature control device is arranged on the plastic support frame. The plastic support frame further comprises a plug-in groove, and the temperature control device is accommodated in the plug-in groove. The two ends of the temperature control device are connected to the first end of the sixth pin column and the second end of the seventh pin column, respectively, and the second end of the sixth pin column is connected to the first end of the seventh pin column.

11. The charging converter of claim 5, wherein The shell comprises a sealing ring arranged at the connection between the first shell and the second shell.

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