High-voltage large-current terminal

Abstract

The utility model provides a high-voltage large-current terminal, which comprises two sheet plates, the two sheet-shaped plates are arranged in an overlapped mode and connected through a bent part, and the overlapped state of the two sheet-shaped plates is formed by bending one plate along the bent part. The sheet plate comprises a metal plate part, a connecting part and a terminal part, the connecting part is located between the metal plate part and the terminal part, and the terminal part comprises an upper row of terminals and a lower row of terminals; the connecting part is formed by bending the sheet-shaped plate at a position corresponding to the end part of the metal plate part, and the upper row of terminals and the lower row of terminals are formed by stamping the sheet-shaped plate at a position corresponding to the connecting part and far away from the metal plate. The high-voltage large-current terminal provided by the utility model can ensure the consistency of high frequency and low frequency of two rows of contact points, and improves the stability of the contact points.

Description

Technical Field

[0001] The utility model relates to the technical field of current transmission equipment, in particular to a high-voltage and high-current terminal. Background Art

[0002] With the development of electric vehicles, long endurance and fast charging are an inevitable trend guided by the market. To achieve these two goals, a set of high-quality high-current conduction systems is essential. To achieve better high-current power transmission, better high-voltage and high-current terminal technology is very important.

[0003] Traditional terminals are formed by stacking four pieces of terminals up and down. The four pieces of terminals are divided into two groups and arranged on the upper and lower sides. Two pieces of terminals are arranged on the upper side and two pieces of terminals are arranged on the lower side, and a copper bar is clamped in the middle for conduction. The two pieces of terminals on the same side are stacked and crossed to form two rows of contact points up and down. However, for the two rows of contact points on the same side, due to the reasons of the assembly and production process of the sheet terminals, when forming a row of contact points during use, it is easy to have a height difference, the contact is unstable, resulting in a relatively high temperature of the terminal. Therefore, there is an urgent need for a high-voltage and high-current terminal to solve the above problems. Summary of the Utility Model

[0004] Based on the above situation, the main purpose of the utility model is to provide a high-voltage and high-current terminal to solve the problem that for the two rows of contact points on the same side, due to the reasons of the assembly and production process of the sheet terminals, when forming a row of contact points during use, it is easy to have a height difference, the contact is unstable, resulting in a relatively high temperature of the terminal.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A high-voltage and high-current terminal includes two sheet-shaped plates;

[0007] The two sheet-shaped plates are overlapped and connected through a bending part. The overlapping state of the two sheet-shaped plates is formed by bending a sheet along the bending part;

[0008] The sheet-shaped plate includes a metal plate part, a connecting part, and a terminal part. The connecting part is located between the metal plate part and the terminal part. The terminal part includes an upper row of terminals and a lower row of terminals;

[0009] The connecting part is formed by bending the sheet-shaped plate at the end position corresponding to the metal plate part, and the upper row of terminals and the lower row of terminals are formed by stamping the sheet-shaped plate at the position corresponding to the connecting part far from the metal plate;

[0010] Preferably, when the two sheet-shaped plates are overlapped, the two metal plate parts are in contact with each other.

[0011] Preferably, the metal plate part is a flat plate.

[0012] Preferably, circular grooves are formed on the surfaces of the two metal plate parts, the two circular grooves can be coaxially arranged, and rivet nuts are fixed in the two circular grooves.

[0013] Preferably, the connecting part includes a first connecting part and a second connecting part, the first connecting part is connected to the metal plate part, and the first connecting part and the second connecting part are arranged at an obtuse angle.

[0014] Preferably, two pressing components are further included, and the two pressing components are respectively located on the upper and lower sides of the two sheet metal plates.

[0015] Preferably, the pressing component includes a fixing part, a first pressing part, a second pressing part and a third pressing part;

[0016] The fixing part is fixed to the metal plate part, the first pressing part presses on the first connecting part, the second pressing part presses on the second connecting part and the upper row of terminals, and the third pressing part is bent downward relative to the second pressing part and presses on the lower row of terminals.

[0017] The beneficial effects of the present utility model are as follows: For the existing high-voltage and high-current terminals, since the upper and lower row terminal sheets are made of two sheets of plates and are formed by different molds, when working, the upper row contact points and the lower row contact points of the existing current terminals are likely to form a row of contact points with high and low drops, resulting in unstable contact. In this application, the upper row terminals and the lower row terminals are formed by stamping and tearing a single sheet of plate with a single mold, which can make the upper end contact points and the lower end contact points form a row of contact points with the same height during operation, ensuring the consistency of high and low frequencies of the two rows of contact points and increasing the stability of the contact points. In addition, the metal plate part formed by folding the sheet can replace the copper row for conduction, eliminating the use of the copper row and reducing the cost. And in this application, a single sheet of plate is stamped and folded to form the upper and lower terminals, which simplifies the subsequent assembly process compared with the traditional terminal structure formed by stacking multiple sheets of plates and copper rows.

[0018] Other beneficial effects of the present utility model will be elaborated in the specific implementation manners through the introduction of specific technical features and technical solutions. Those skilled in the art should be able to understand the beneficial technical effects brought by the technical features and technical solutions through these introductions. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural diagram of a high-voltage and high-current terminal of the present utility model.

[0020] Figure 2 It is an exploded view of a high-voltage and high-current terminal of the present utility model.

[0021] Figure 3 This is a schematic structural diagram of a high-voltage and high-current terminal of the present utility model, showing the upper contact point and the lower contact point.

[0022] Explanation of reference numerals:

[0023] 1. Sheet-like plate; 11. Metal plate part; 111. Round groove; 112. Rivet nut; 12. Connection part; 121. First connection part; 122. Second connection part; 13. Terminal part; 131. Upper row of terminals; 1311. Upper contact point; 132. Lower row of terminals; 1321. Lower contact point; 2. Pressing component; 21. Fixed part; 22. First pressing part; 23. Second pressing part; 24. Third pressing part; 3. Bending part. Specific embodiments

[0024] The following describes the present utility model based on embodiments, but the present utility model is not limited to these embodiments. In the following detailed description of the present utility model, some specific details are described in detail. In order to avoid confusing the essence of the present utility model, well-known methods, processes, procedures, and components are not described in detail.

[0025] In addition, those of ordinary skill in the art should understand that the drawings provided herein are for illustrative purposes only, and the drawings are not necessarily drawn to scale.

[0026] Unless the context clearly requires otherwise, the words such as "including", "comprising" and the like in the whole specification and claims should be interpreted as the meaning of including rather than exclusive or exhaustive; that is, the meaning of "including but not limited to".

[0027] In the description of the present utility model, it should be understood that the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, in the description of the present utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0028] Referring to Figures 1-3 , the present utility model provides a high-voltage and high-current terminal, including two sheet-like plates 1 and a pressing component 2. One side of the two sheet-like plates 1 is connected to each other. The two sheet-like plates 1 are formed by processing the same sheet of plate, and the two sheet-like plates 1 are used to process into upper and lower sheet-like terminals. The pressing component 2 can maintain the shape of the high-voltage and high-current terminal after the high-voltage and high-current terminal is formed by processing the plate.

[0029] The two sheet-shaped plates 1 have the same shape. The two sheet-shaped plates 1 are overlapped and connected by the bending part 3. The two sheet-shaped plates 1 in the overlapped state are formed by bending a whole sheet of plate along the bending part 3. The sheet-shaped plate 1 includes a metal plate part 11, a connecting part 12, and a terminal part 13. The connecting part 12 is located between the metal plate part 11 and the terminal part 13. The metal plate part 11 is a flat plate, and the bending part 3 is located at the position of the flat plate. The surface shape of the flat plate is not limited and can be changed according to requirements. When the two metal plate parts 11 are in the bent state, the surfaces of the two metal plate parts 11 are in contact with each other.

[0030] The connecting part 12 is formed by bending the end of the sheet-shaped plate 1 corresponding to the metal plate part 11. The terminal part 13 includes an upper row of terminals 131 and a lower row of terminals 132. The upper row of terminals 131 and the lower row of terminals 132 are formed by die stamping at the position of the sheet-shaped plate 1 corresponding to the connecting part 12 away from the metal plate part 11. Tearing the terminal part 13 plate forms the upper row of terminals 131 and the lower row of terminals 132, so that the connecting part 12, the metal plate part 11, and the terminal part 13 are all processed from a single sheet-shaped plate 1. One end of the upper row of terminals 131 away from the connecting part 12 is the upper end contact point 1311, and one end of the lower row of terminals 132 away from the connecting part 12 is the lower end contact point 1321. When processing the high-voltage and high-current terminals of the present application, usually, the two sheet-shaped plates 1 are first stamped and bent to form the connecting part 12, the metal plate part 11, and the terminal part 13, and then bent along the bending part 3 to form the sheet-shaped plates 1 arranged up and down, forming the high-voltage current terminals.

[0031] For the existing high-voltage and high-current terminals, since the upper and lower row terminal 132 sheets are made of two sheets of plate and are formed by different dies, during operation, the upper row contact point and the lower row contact point of the existing current terminals are likely to form a row of contact points with a height difference, resulting in unstable contact. In the present application, the upper row of terminals 131 and the lower row of terminals 132 are formed by stamping and tearing a single sheet of plate with a single die, which can make the upper end contact point 1311 and the lower end contact point 1321 form a row of contact points with the same height during operation, ensuring the consistency of the upper and lower row contact points in high and low frequencies and increasing the stability of the contact points. In addition, the metal plate part 11 formed by folding the plate can replace the copper bar for conducting electricity, reducing the cost. And in the present application, a single sheet of plate is stamped and folded to form the upper and lower terminals, which simplifies the subsequent assembly process compared with the traditional terminal structure formed by stacking multiple sheets of plate and copper bars.

[0032] As an embodiment, circular grooves 111 are provided on the surfaces of the two metal plate parts 11. The circular grooves 111 are located at the positions of the metal plate parts 11 away from the connecting part 12. When the two sheet-shaped plates 1 are in the bent state, the two circular grooves 111 are coaxially arranged, and rivet nuts 112 can be fixed in the two circular grooves 111, so as to enable the two metal plate parts 11 to be stably in contact and enable the current electrons to work stably.

[0033] As an embodiment, the connecting portion 12 includes a first connecting portion 121 and a second connecting portion 122. The first connecting portion 121 and the second connecting portion 122 are connected. The first connecting portion 121 is connected to the metal sheet portion 11, and the second connecting portion 122 is connected to the terminal portion 13. An obtuse angle is formed between the first connecting portion 121 and the second connecting portion 122. The first connecting portion 121 and the second connecting portion 122 are formed by bending a sheet metal 1 at the middle position of the corresponding connecting portion 12. The second connecting portion 122 formed by bending can reduce the angle between the connecting portion 12 and the terminal portion 13, facilitating the subsequent processing and stamping of the terminal portion 13.

[0034] In the bent state of the two sheet metals 1, the two pressing assemblies 2 are respectively located on the upper and lower sides of the two sheet metals 1. The pressing assembly 2 includes a fixing portion 21, a first pressing portion 22, a second pressing portion 23, and a third pressing portion 24. One end of the first pressing portion 22 is connected to the fixing portion 21. The fixing portion 21 is fixed to the surface of the metal sheet portion 11. The first pressing portion 22 presses on the two first connecting portions 121. The second pressing portion 23 presses on the second connecting portion 122 and the upper row of terminals 131. The third pressing portion 24 is bent downward relative to the second pressing portion 23 and presses on the lower row of terminals 132. Specifically, the fixing portion 21 and the metal sheet portion 11 are fixed by riveting. The pressing assembly 2 can stabilize the positions of the upper row of terminals 131 and the lower row of terminals 132, and the relative positions between the upper row of terminals 131 and the lower row of terminals 132 can be stabilized, further improving the stability of the upper contact point 1311 and the lower contact point 1321.

[0035] The implementation principle of the present utility model is as follows: For existing high-voltage and high-current terminals, since the upper and lower row terminal sheets 132 are made of two sheets of metal and are formed by different molds, when working, the upper and lower contact points of the existing current terminals are likely to have a height difference when forming a row of contact points, resulting in unstable contact. In this application, the upper row of terminals 131 and the lower row of terminals 132 are formed by stamping and tearing a single sheet of metal with a single mold, which can make the upper contact point 1311 and the lower contact point 1321 form a row of contact points with the same height during operation, ensuring the consistency of the upper and lower rows of contact points in high and low frequencies and increasing the stability of the contact points. In addition, the metal sheet portion 11 formed by folding the sheet can replace the copper busbar for conduction, eliminating the use of the copper busbar and reducing the cost. And in this application, a single sheet of metal is formed into upper and lower terminals through stamping and folding, which simplifies the subsequent assembly process compared with the traditional terminal structure formed by stacking multiple sheets of metal and copper busbars.

[0036] Those skilled in the art can understand that, on the premise of no conflict, the above preferred solutions can be freely combined and superimposed.

[0037] It should be understood that the above embodiments are merely exemplary and not restrictive. Without departing from the basic principles of the present invention, various obvious or equivalent modifications or substitutions that those skilled in the art can make to the above details will all be included within the scope of the claims of the present invention.

Claims

1. A high voltage and high current terminal, characterized in that: It includes two sheet-like plates; The two sheet-like plates are overlapped and connected by a bending portion, and the overlapping state of the two sheet-like plates is formed by bending one plate along the bending portion; The sheet plate includes a metal plate portion, a connecting portion and a terminal portion, wherein the connecting portion is located between the metal plate portion and the terminal portion, and the terminal portion includes an upper row of terminals and a lower row of terminals; The connecting portion is formed by bending the sheet material at a position corresponding to the end of the metal sheet portion, and the upper row of terminals and the lower row of terminals are formed by stamping the sheet material at a position corresponding to the connecting portion away from the metal sheet.

2. A high voltage and high current terminal as claimed in claim 1, characterized in that: When the two sheet-like plates are overlapped, the two metal plate portions abut against each other.

3. A high voltage and high current terminal as claimed in claim 1, characterized in that: The metal plate portion is a planar plate.

4. A high voltage and high current terminal as claimed in claim 1, characterized in that: Circular grooves are provided on the surfaces of the two metal sheet parts. The two circular grooves can be coaxially arranged, and rivet nuts are fixed in the two circular grooves.

5. A high voltage and high current terminal as claimed in claim 1, characterized in that: The connecting portion includes a first connecting portion and a second connecting portion, the first connecting portion is connected to the metal plate portion, and the first connecting portion and the second connecting portion are arranged at an obtuse angle.

6. A high voltage and high current terminal as claimed in claim 5, characterized in that: It also includes two pressing components, which are respectively located on the upper and lower sides of the two sheet-like plates.

7. A high voltage and high current terminal as claimed in claim 6, characterized in that: The pressing assembly includes a fixing portion, a first pressing portion, a second pressing portion and a third pressing portion; The fixing portion is fixed to the metal plate portion, the first pressing portion is pressed to the first connecting portion, the second pressing portion is pressed to the second connecting portion and the upper row of terminals, and the third pressing portion is bent downward relative to the second pressing portion and pressed to the lower row of terminals.

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