Electronic device

Abstract

The utility model provides an electronic device. The electronic device comprises a printed circuit board, a first copper bar and a second copper bar, the first copper bar is arranged on the first surface of the printed circuit board, and the first end of the first copper bar is pressed on the first connecting end on the first surface to form electric connection; the second copper bar is arranged on the second surface of the printed circuit board, and the first end of the second copper bar is pressed on the second connecting end on the second surface to form electric connection. The PCB connector can bear large current, satisfies multi-path transmission, realizes PCB double-sided crimping, and can fully utilize the structure space.

Description

Technical Field

[0001] The present application relates to the field of power supply technology, and in particular to electronic devices. Background Art

[0002] With the rapid development of new energy vehicles, the proportion of new energy vehicles is increasing.

[0003] New energy vehicles have power batteries as power sources, and the input end of the on-board charger (OBC) needs to be connected to an AC source (such as the power grid) to charge the power battery through power conversion. In order to implement the concept of green energy development and help achieve the low-carbon goals of "carbon neutrality" and "carbon peak", the on-board charger, as an energy conversion device between the battery and the AC source of new energy vehicles, is gradually developing towards low carbon footprint, high conversion efficiency, and high power density. Automobile terminals are gradually moving towards integration and integration.

[0004] In order to pursue high efficiency and high power density on-board chargers, on-board chargers need to pass larger currents. In addition, multi-command control signals and distributed charging modes make multi-channel distributed electrical or signal connections a problem that needs to be solved urgently in this field. The improvement of the connection end of the printed circuit board, an important component of the on-board charger control module, is also an important topic. In the prior art, the connection interface is usually formed by single-sided welding or crimping, and the number of lines or current capacity are limited. Utility Model Content

[0005] The technical problem to be solved by the utility model is: how to improve the current carrying capacity of the connector and realize multi-channel transmission and control under a reasonable and optimal structural space arrangement.

[0006] In order to solve the above technical problems, the utility model provides an electronic device, the purpose of which is to be able to carry large currents, meet multi-channel transmission, and have a more reasonable layout.

[0007] In order to achieve the above object, the utility model provides an electronic device, comprising:

[0008] A printed circuit board, wherein a first connection terminal is provided on a first surface of the printed circuit board, and a second connection terminal is provided on a second surface of the printed circuit board;

[0009] A first copper bar, wherein the first copper bar is disposed on the first surface, and a first end of the first copper bar is crimped to the first connection end to form an electrical connection; and a second copper bar, wherein the second copper bar is disposed on the second surface, and a first end of the second copper bar is crimped to the second connection end to form an electrical connection.

[0010] Preferably, the electronic device provided by the utility model further includes:

[0011] A third copper bar, a third connection end is provided on the first surface, and the third copper bar is crimped to the third connection end on the first surface to form an electrical connection;

[0012] A fourth copper bar, wherein a fourth connection end is provided on the second surface, and the fourth copper bar is crimped to the fourth connection end on the second surface to form an electrical connection; wherein the cross-sectional areas of the third copper bar and the fourth copper bar are smaller than the cross-sectional areas of the first copper bar and the second copper bar.

[0013] Preferably, the electronic device provided by the utility model further includes:

[0014] A first crimping rubber bag, wherein the first crimping rubber bag is provided with recesses at the first copper bar and the third copper bar to fit the first copper bar and the third copper bar, and a first fixing hole is provided on the first crimping rubber bag; and a first copper bar fixing hole is provided at the first end of the first copper bar;

[0015] A second crimping rubber bag, wherein the second crimping rubber bag is provided with recesses at the second copper bar and the fourth copper bar to fit the second copper bar and the fourth copper bar, and a second fixing hole is provided on the second crimping rubber bag; and a second copper bar fixing hole is provided at the first end of the second copper bar;

[0016] The first fixing hole, the second fixing hole, the first copper bar fixing hole and the second copper bar fixing hole are arranged in alignment, and a printed circuit board fixing hole is arranged at a corresponding position of the printed circuit board;

[0017] The rivet studs and rivet nuts are provided in the first fixing hole, the first copper bar fixing hole, the printed circuit board fixing hole, the second copper bar fixing hole, and the second fixing hole and are fixed by rivet fixing in cooperation with the rivet nut, so that the first wire pressing rubber package is pressed against the first copper bar and the third copper bar is pressed and connected to the first surface of the first printed circuit board, and the second wire pressing rubber package is pressed against the second copper bar and the fourth copper bar is pressed and connected to the second surface of the printed circuit board.

[0018] Preferably, the number of the first fixing hole, the printed circuit board fixing hole, the second fixing hole, the first copper bar fixing hole, the second copper bar fixing hole, the rivet studs and the rivet nuts is the same, and the number is at least two;

[0019] There are at least two first copper bars, wherein two first copper bars are located at two sides, the first copper bars at the two sides are respectively provided with first copper bar fixing holes, and the third copper bar is located between the first copper bars at the two sides;

[0020] The number of the second copper bars is at least two, wherein two second copper bars are located at two sides, the second copper bars at the two sides are respectively provided with second copper bar fixing holes, and the fourth copper bar is located between the second copper bars at the two sides.

[0021] Preferably, the first crimping rubber package and the second crimping rubber package are made of electrical insulating material;

[0022] The pressure riveting studs, the pressure riveting nuts, the first copper bar, the third copper bar, the second copper bar, and the fourth copper bar are electrically insulated from each other;

[0023] The copper bars are electrically insulated from each other.

[0024] Preferably, the first copper bar, the second copper bar, the third copper bar and the fourth copper bar include a bend away from the printed circuit board between the first end and the second end thereof to ensure a safety distance, so that the vertical distance between the second end of the first copper bar, the second copper bar, the third copper bar and the fourth copper bar and the printed circuit board is greater than the vertical distance between the first end of the first copper bar, the second copper bar, the third copper bar and the fourth copper bar and the printed circuit board.

[0025] Preferably, the second end of the first copper bar, the second end of the third copper bar, the second end of the second copper bar, and the second end of the fourth copper bar are arranged in the connector housing in an electrically insulated manner from each other;

[0026] The connector housing is integrally formed by injection molding with the second end of the first copper bar, the second end of the third copper bar, the second end of the second copper bar, and the second end of the fourth copper bar embedded therein.

[0027] In order to solve the above technical problems, the utility model also provides a multi-way connector, which is used to connect printed circuit boards and can carry large currents, meet multi-way transmission, and has a more reasonable layout.

[0028] In order to achieve the above object, the utility model also provides a multi-way connector, comprising:

[0029] a first copper bar, wherein a first end of the first copper bar is in a free state;

[0030] a second copper bar, wherein a first end of the second copper bar is in a free state;

[0031] a third copper bar, wherein the first end of the third copper bar is in a free state;

[0032] a fourth copper bar, wherein the first end of the fourth copper bar is in a free state; the first copper bar, the third copper bar, the second copper bar, and the fourth copper bar are electrically insulated; wherein the cross-sectional areas of the third copper bar and the fourth copper bar are smaller than the cross-sectional areas of the first copper bar and the second copper bar;

[0033] A connector housing is made of insulating material; the second end of the first copper bar, the second end of the second copper bar, the second end of the third copper bar, and the second end of the fourth copper bar are fixedly connected in the connector housing.

[0034] Preferably, the first end of the first copper bar and the first end of the third copper bar are arranged in a row; the second end of the first copper bar and the second end of the third copper bar are arranged in a row;

[0035] The first end of the second copper bar and the first end of the fourth copper bar are arranged in a row; the second end of the second copper bar and the second end of the fourth copper bar are arranged in a row;

[0036] The first copper bar and the second copper bar are arranged opposite to each other, and the third copper bar and the fourth copper bar are arranged opposite to each other;

[0037] The distance between the first end of the first copper bar and the first end of the second copper bar is equal to the distance between the first end of the third copper bar and the first end of the fourth copper bar;

[0038] The distance between the second end of the first copper bar and the second end of the second copper bar is equal to the distance between the second end of the third copper bar and the second end of the fourth copper bar;

[0039] The distance between the first end of the first copper bar and the first end of the second copper bar is smaller than the distance between the second end of the first copper bar and the second end of the second copper bar;

[0040] The distance between the first end of the third copper bar and the first end of the fourth copper bar is smaller than the distance between the second end of the third copper bar and the second end of the fourth copper bar;

[0041] The gap between the first end of the first copper bar and the first end of the second copper bar, and the gap between the first end of the third copper bar and the first end of the fourth copper bar are used to accommodate the printed circuit board so that the first copper bar and the third copper bar are located on the first surface of the printed circuit board, the second copper bar and the fourth copper bar are located on the second surface of the printed circuit board, and the first ends of the first copper bar, the second copper bar, the third copper bar and the fourth copper bar are electrically connected to the circuits on the printed circuit board.

[0042] Preferably, the number of the first copper bars is at least two, wherein two first copper bars are located at two sides, first copper bar fixing holes are respectively provided on the first ends of the first copper bars at the two sides, and the third copper bar is located between the first copper bars at the two sides;

[0043] The number of the second copper bars is at least two, wherein two second copper bars are located at two sides, the first ends of the second copper bars at the two sides are respectively provided with second copper bar fixing holes, and the fourth copper bar is located between the second copper bars at the two sides;

[0044] The first copper bar fixing hole and the second copper bar fixing hole are used to pass the rivet studs and to press and connect the first end of the first copper bar, the first end of the third copper bar and the first surface of the printed circuit board through the matching rivet nuts, and to press and connect the first end of the second copper bar, the first end of the fourth copper bar and the second surface of the printed circuit board.

[0045] Compared with the prior art, the utility model provides an electronic device, including: a printed circuit board, a first connection end is provided on the first surface of the printed circuit board, and a second connection end is provided on the second surface; a first copper bar, the first copper bar is arranged at the first surface, and the first end of the first copper bar is crimped to the first connection end to form an electrical connection; a second copper bar, the second copper bar is arranged at the second surface, and the first end of the second copper bar is crimped to the second connection end to form an electrical connection. The utility model also provides a multi-way connector, including: a first copper bar, the first end of the first copper bar is free; a second copper bar, the first end of the second copper bar is free; a third copper bar, the first end of the third copper bar is free; a fourth copper bar, the first end of the fourth copper bar is free; the first copper bar, the third copper bar, the second copper bar, and the fourth copper bar are electrically insulated from each other; wherein the cross-sectional areas of the third copper bar and the fourth copper bar are smaller than the cross-sectional areas of the first copper bar and the second copper bar; a connector housing, the connector housing is made of insulating material; the second end of the first copper bar, the second end of the second copper bar, the second end of the third copper bar, and the second end of the fourth copper bar are fixedly connected to the connector housing. Based on this, compared with the prior art, the technical effect that the utility model can achieve is that it can carry large currents, meet multi-channel transmission, realize double-sided crimping of printed circuit boards (PCBs), and fully utilize structural space. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0047] Figure 1 A three-dimensional structural schematic diagram of an embodiment of an electronic device provided by the utility model is shown.

[0048] Figure 2 A schematic cross-sectional structure diagram of an embodiment of an electronic device provided by the utility model is shown.

[0049] Figure 3 A schematic diagram of an exploded three-dimensional structure of an electronic device according to an embodiment of the present invention is shown. DETAILED DESCRIPTION

[0050] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0051] It should be understood that the terms "first", "second", etc. in the claims, specification and drawings of the present application are used to distinguish different objects rather than to describe a specific order. The terms "include" and "comprise" used in the specification and claims of the present application indicate the presence of the described features, wholes, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or their collections.

[0052] See also Figure 1 , Figure 2 and Figure 3 As shown, the electronic device provided by the utility model includes: a printed circuit board 10, a first connection terminal (not shown in the figure) is provided on the first surface 11 of the printed circuit board 10, and a second connection terminal (not shown in the figure) is provided on the second surface 12. A first copper bar 20 is provided on the first surface 11, and a first copper bar 20 is provided on the second surface 12. Figure 2 As shown, the first end 21 of the first copper bar 20 is crimped to the first connection end to form an electrical connection. The second copper bar 30 is arranged at the second surface 12, combined with Figure 2 As shown, the first end 31 of the second copper busbar 30 is crimped to the second connecting end to form an electrical connection.

[0053] See also Figure 1 and Figure 2 As shown, the electronic device provided by the utility model includes: a third copper bar 40, a third connection end (not shown in the figure) is provided on the first surface 11, and the third copper bar 40 is crimped to the third connection end on the first surface 11 to form an electrical connection. A fourth copper bar 50, a fourth connection end (not shown in the figure) is provided on the second surface 12, and the fourth copper bar 50 is crimped to the fourth connection end on the second surface 12 to form an electrical connection. The cross-sectional areas of the third copper bar 40 and the fourth copper bar 50 are smaller than the cross-sectional areas of the first copper bar 20 and the second copper bar 30.

[0054] The number of the first copper bar 20, the second copper bar 30, the third copper bar 40, the fourth copper bar 50, etc. provided subsequently is a more preferred embodiment, and the number of the first copper bar 20, the second copper bar 30, the third copper bar 40, the fourth copper bar 50, etc. can also be one.

[0055] Further, the number of the first copper bars 20 is at least two (two first copper bars 20 are shown in the figure), and the rated current of each first copper bar 20 is greater than or equal to 120 amperes. The number of the second copper bars 30 is at least two, and the rated current of each second copper bar 30 is greater than or equal to 120 amperes. The number of the third copper bars 40 is at least one (two third copper bars 40 are shown in the figure), and the rated current of each third copper bar 40 is greater than or equal to 10 amperes. The number of the fourth copper bars 50 is at least one (two fourth copper bars 50 are shown in the figure), and the rated current of each fourth copper bar 50 is greater than or equal to 10 amperes. The current passing through the first copper bar 20 and the second copper bar 30 is greater than that of the third copper bar 40 and the fourth copper bar 50. The cross-sectional shape of the first copper bar 20, the second copper bar 30, the third copper bar 40, and the fourth copper bar 50 is not limited, and can also be in the form of pins.

[0056] See also Figure 1 As shown, refer to Figure 2 and Figure 3 As shown, the electronic device provided by the utility model further includes: a first wire crimping rubber package 61, the first wire crimping rubber package 61 is provided with a recess 62 at the first copper bar 20 and the third copper bar 40 to fit the first copper bar 20 and the third copper bar 40, and the first wire crimping rubber package 61 is provided with a first fixing hole 63; Figure 3 As shown, a first copper bar fixing hole 22 is provided at the first end 21 of the first copper bar. A second wire crimping rubber package 65 is provided with a recess 66 at the second copper bar 30 and the fourth copper bar 50 to fit the second copper bar 30 and the fourth copper bar 50, and a second fixing hole 67 is provided on the second wire crimping rubber package 65; a second copper bar fixing hole 32 is provided at the first end 31 of the second copper bar. The first fixing hole 63, the second fixing hole 67, the first copper bar fixing hole 22 and the second copper bar fixing hole 32 are aligned, and the second copper bar fixing hole 32 is aligned. Figure 2 As shown, a printed circuit board fixing hole 13 is set at the corresponding position of the printed circuit board 10. The rivet stud 71 and the rivet nut 72 are provided in the first fixing hole 63, the first copper bar fixing hole 22, the printed circuit board fixing hole 13, the second copper bar fixing hole 32, and the second fixing hole 67, and are fixed by rivet with the rivet nut 72, so that the first wire pressing rubber 61 is pressed against the first copper bar 20 and the third copper bar 40 are pressed and connected with the first surface 11 of the printed first circuit board, and the second wire pressing rubber 65 is pressed against the second copper bar 30 and the fourth copper bar 50 are pressed and connected with the second surface 12 of the printed circuit board. Accordingly, multiple copper bars are crimped on both sides of the printed circuit board.

[0057] like Figure 1 and Figure 3As shown, the number of the first copper bars 20 is at least two, wherein the two first copper bars 20 are located on both sides, and the first copper bars 20 on the two sides are respectively provided with first copper bar fixing holes 22, and the third copper bar 40 is located between the first copper bars 20 on the two sides. The figure shows two first copper bars and two third copper bars. The number of the second copper bars 30 is at least two, wherein the two second copper bars 30 are located on both sides, and the second copper bars 30 on the two sides are respectively provided with second copper bar fixing holes 32, and the fourth copper bar 50 is located between the second copper bars 30 on the two sides. The number of the first fixing hole 63, the printed circuit board fixing hole 13, the second fixing hole 67, the first copper bar fixing hole 22, the second copper bar fixing hole 32, the rivet studs 71 ​​and the rivet nuts 72 are the same, and the number is at least two. The copper bar can be better fixed.

[0058] The first crimping rubber package 61 and the second crimping rubber package 65 are made of electrically insulating materials. The rivet studs 71 ​​and the rivet nuts 72 are electrically insulated from the first copper bar 20, the third copper bar 40, the second copper bar 30, and the fourth copper bar 50. The copper bars are electrically insulated. Specifically, the number of the first copper bars 20 is at least two, and the first copper bars 20 are electrically insulated. The number of the second copper bars 30 is at least two, and the second copper bars 30 are electrically insulated. The third copper bars 40 are electrically insulated. The fourth copper bars 50 are electrically insulated. The first copper bar 20, the third copper bar 40, the second copper bar 30, and the fourth copper bar 50 are electrically insulated from each other. Specifically, air gaps are left, the crimping rubber package is separated by insulation, and the connection shell is separated by insulation.

[0059] The first copper bar 20, the second copper bar 30, the third copper bar 40 and the fourth copper bar 50 include a bend between the first end and the second end thereof away from the printed circuit board to ensure a safety distance, so that the vertical distance between the second end of the first copper bar 20, the second copper bar 30, the third copper bar 40 and the fourth copper bar 50 and the printed circuit board is greater than the vertical distance between the first end of the first copper bar 20, the second copper bar 30, the third copper bar 40 and the fourth copper bar 50 and the printed circuit board.

[0060] See also Figure 3 The first copper bar 20, the second copper bar 30, the third copper bar 40 and the fourth copper bar 50 are bent once in a direction away from the printed circuit board at the first end away from the printed circuit board for crimping, and then bent once again in a direction parallel to the printed circuit board, so that the second ends of the first copper bar 20, the second copper bar 30, the third copper bar 40 and the fourth copper bar 50 are arranged in parallel and farther from the printed circuit board than the first end thereof. The gap between the second end 23 of the first copper bar, the second end 43 of the third copper bar and the second end 33 of the second copper bar, the second end 53 of the fourth copper bar is increased. Accordingly, its insulation performance is increased.

[0061] Figure 3Taking bending twice as an example, in actual application, the gap between the second end 23 of the first copper bar, the second end 43 of the third copper bar and the second end 33 of the second copper bar, the second end 53 of the fourth copper bar is increased, and the specific number of bending is not limited.

[0062] The second end 23 of the first copper bar, the second end 43 of the third copper bar, the second end 33 of the second copper bar, and the second end 53 of the fourth copper bar are electrically insulated from each other and are arranged in the connector housing 80. The connector housing 80 is made of insulating plastic. Specifically, the connector housing 80 is an injection-molded one-piece mold that pre-buries the second end 23 of the first copper bar, the second end 43 of the third copper bar, the second end 33 of the second copper bar, and the second end 53 of the fourth copper bar.

[0063] The above is the specific structure and connection method of the electronic device provided by the utility model. By arranging copper bars on both sides of the printed circuit board and connecting them by crimping, and further arranging copper bars with different rated currents (different cross-sectional areas), it is possible to realize the transmission of multiple current level signals on the printed circuit board, thereby realizing that one interface terminal is compatible with multi-channel, multi-specification, and large current transmission, and the spatial layout is reasonable.

[0064] See also Figure 1 , Figure 2 and Figure 3 The multi-way connector provided by the utility model is different from the aforementioned electronic device in that the multi-way connector does not include components such as the printed circuit board 10, the first wire pressing rubber package 61, the second wire pressing rubber package 65, the rivet studs 71, and the rivet nuts 72.

[0065] See also Figure 1 , Figure 2 and Figure 3 The utility model also provides a multi-way connector, including: a first copper bar 20, wherein the first end 21 of the first copper bar is in a free state. A second copper bar 30, wherein the first end 31 of the second copper bar is in a free state. A third copper bar 40, wherein the first end 41 of the third copper bar is in a free state. A fourth copper bar 50, wherein the first end 51 of the fourth copper bar is in a free state. The first copper bar 20, the third copper bar 40, the second copper bar 30, and the fourth copper bar 50 are electrically insulated from each other. The cross-sectional areas of the third copper bar 40 and the fourth copper bar 50 are smaller than the cross-sectional areas of the first copper bar 20 and the second copper bar 30. Accordingly, the current passing through the first copper bar 20 and the second copper bar 30 is greater than that of the third copper bar 40 and the fourth copper bar 50. A connector housing 80, wherein the connector housing 80 is made of insulating material. The second end 23 of the first copper bar, the second end 33 of the second copper bar, the second end 43 of the third copper bar, and the second end 53 of the fourth copper bar are fixedly connected to the connector housing 80.

[0066] The first end 21 of the first copper bar and the first end 41 of the third copper bar are arranged in a row; the second end 23 of the first copper bar and the second end 43 of the third copper bar are arranged in a row. The first end 31 of the second copper bar and the first end 51 of the fourth copper bar are arranged in a row; the second end 33 of the second copper bar and the second end 53 of the fourth copper bar are arranged in a row. The first copper bar 20 and the second copper bar 30 are arranged opposite to each other, and the third copper bar 40 and the fourth copper bar 50 are arranged opposite to each other. The distance between the first end 21 of the first copper bar and the first end 31 of the second copper bar is equal to the distance between the first end 41 of the third copper bar and the first end 51 of the fourth copper bar. The distance between the second end 23 of the first copper bar and the second end 33 of the second copper bar is equal to the distance between the second end 43 of the third copper bar and the second end 53 of the fourth copper bar. The distance between the first end 21 of the first copper bar and the first end 31 of the second copper bar is less than the distance between the second end 23 of the first copper bar and the second end 33 of the second copper bar. The gap between the first end 21 of the first copper bar and the first end 31 of the second copper bar, and the gap between the first end 41 of the third copper bar and the first end 51 of the fourth copper bar are used to accommodate the printed circuit board 10, so that the first copper bar 20 and the third copper bar 40 are located on the first surface 11 of the printed circuit board, the second copper bar 30 and the fourth copper bar 50 are located on the second surface 12 of the printed circuit board, and the first ends 21, 31, 41, 51 of the first copper bar 20, the second copper bar 30, the third copper bar 40 and the fourth copper bar 50 are electrically connected to the circuits on the printed circuit board 10.

[0067] There are at least two first copper bars 20, wherein two first copper bars 20 are located at two sides, and first copper bar fixing holes 22 are respectively provided on the first ends 21 of the first copper bars on the two sides, and the third copper bar 40 is located between the first copper bars 20 on the two sides. There are at least two second copper bars 30, wherein two second copper bars 30 are located at two sides, and second copper bar fixing holes 32 are respectively provided on the first ends 31 of the second copper bars on the two sides, and the fourth copper bar 50 is located between the second copper bars 30 on the two sides. The first copper bar fixing holes 22 and the second copper bar fixing holes 32 are used to penetrate the rivet studs 71 ​​and to press and connect the first end 21 of the first copper bar, the first end 41 of the third copper bar to the first surface 11 of the printed circuit board through the rivet nuts 72, and to press and connect the first end 31 of the second copper bar, the first end 51 of the fourth copper bar to the second surface 12 of the printed circuit board.

[0068] The above is the specific structure and connection method of the multi-way connector provided by the utility model. By electrically connecting the multi-way connector with the circuits on the printed circuit board, it is possible to realize double-sided transmission of currents of various specifications, multi-way currents, and large currents, and the spatial layout is reasonable.

[0069] The above is the specific structure and connection method of the electronic device and multi-way connector provided by the utility model. The technical effect provided by the utility model is that it can carry large current, meet multi-way transmission, realize double-sided crimping of printed circuit boards, and fully utilize the structural space.

[0070] The above specific embodiments and accompanying drawings are only used to illustrate the technical solutions and technical effects of the utility model, and are not used to limit the utility model. Any person skilled in the art who is familiar with this technology can modify or change the above embodiments within the scope of the claims without violating the technical principles and spirit of the utility model, and all of them belong to the scope of protection of the utility model.

Claims

1. An electronic device, characterized in that: include: A printed circuit board, wherein a first connection terminal is provided on a first surface of the printed circuit board, and a second connection terminal is provided on a second surface of the printed circuit board; A first copper bar, wherein the first copper bar is disposed on the first surface, and a first end of the first copper bar is crimped to the first connection end to form an electrical connection; A second copper bar is disposed on the second surface, and a first end of the second copper bar is crimped to the second connection end to form an electrical connection.

2. The electronic device according to claim 1, wherein: Also includes, A third copper bar, a third connection end is provided on the first surface, and the third copper bar is crimped to the third connection end on the first surface to form an electrical connection; A fourth copper bar, wherein a fourth connection end is provided on the second surface, and the fourth copper bar is crimped to the fourth connection end on the second surface to form an electrical connection; wherein the cross-sectional areas of the third copper bar and the fourth copper bar are smaller than the cross-sectional areas of the first copper bar and the second copper bar.

3. The electronic device according to claim 2, wherein: Also includes, A first crimping rubber bag, wherein the first crimping rubber bag is provided with recesses at the first copper bar and the third copper bar to fit the first copper bar and the third copper bar, and a first fixing hole is provided on the first crimping rubber bag; and a first copper bar fixing hole is provided at the first end of the first copper bar; A second crimping rubber bag, wherein the second crimping rubber bag is provided with recesses at the second copper bar and the fourth copper bar to fit the second copper bar and the fourth copper bar, and a second fixing hole is provided on the second crimping rubber bag; and a second copper bar fixing hole is provided at the first end of the second copper bar; The first fixing hole, the second fixing hole, the first copper bar fixing hole and the second copper bar fixing hole are arranged in alignment, and a printed circuit board fixing hole is arranged at a corresponding position of the printed circuit board; The rivet studs and rivet nuts are provided in the first fixing hole, the first copper bar fixing hole, the printed circuit board fixing hole, the second copper bar fixing hole, and the second fixing hole and are fixed by rivet fixing in cooperation with the rivet nut, so that the first wire pressing rubber package is pressed against the first copper bar and the third copper bar is pressed and connected to the first surface of the first printed circuit board, and the second wire pressing rubber package is pressed against the second copper bar and the fourth copper bar is pressed and connected to the second surface of the printed circuit board.

4. The electronic device as claimed in claim 3, characterized in that: There are at least two first copper bars, wherein two first copper bars are located at two sides, the first copper bars at the two sides are respectively provided with first copper bar fixing holes, and the third copper bar is located between the first copper bars at the two sides; The number of the second copper bars is at least two, wherein two second copper bars are located at two sides, the second copper bars at the two sides are respectively provided with second copper bar fixing holes, and the fourth copper bar is located between the second copper bars at the two sides.

5. The electronic device as claimed in claim 3, characterized in that: The first crimping rubber package and the second crimping rubber package are made of electrical insulating material; The pressure riveting studs, the pressure riveting nuts, the first copper bar, the third copper bar, the second copper bar, and the fourth copper bar are electrically insulated from each other; The copper bars are electrically insulated from each other.

6. The electronic device as claimed in claim 2, characterized in that: The first copper bar, the second copper bar, the third copper bar and the fourth copper bar include a bend between the first end and the second end thereof away from the printed circuit board to ensure a safety distance, so that a vertical distance between the second ends of the first copper bar, the second copper bar, the third copper bar and the fourth copper bar and the printed circuit board is greater than a vertical distance between the first ends of the first copper bar, the second copper bar, the third copper bar and the fourth copper bar and the printed circuit board.

7. The electronic device according to claim 2 or 6, characterized in that: The second end of the first copper bar, the second end of the third copper bar, the second end of the second copper bar, and the second end of the fourth copper bar are arranged in a connector housing in an electrically insulated manner from each other; The connector housing is integrally formed by injection molding with the second end of the first copper bar, the second end of the third copper bar, the second end of the second copper bar, and the second end of the fourth copper bar embedded therein.

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