Highly elastic large current connection terminal and connector

Abstract

The utility model relates to the technical field of connector, especially a kind of high elasticity large current connecting terminal and connector.It includes: first pedestal and the first spring of a plurality of first pedestal and interval arrangement of extension connection in the first pedestal, the first pedestal is annular structure, a plurality of first spring is opposite and extends to the two sides of first pedestal, and the first spring is connected with first contact point at the end away from the first pedestal.

Description

Technical Field

[0001] This invention relates to the field of connector technology, and in particular to a highly elastic high-current connection terminal and connector. Background Technology

[0002] As industrial energy storage systems develop towards larger capacities, new challenges are posed to multi-contact, high-current connection terminals. Large-capacity energy storage systems need to transmit larger currents and typically require stable operation over long periods, placing extremely high demands on the reliability and durability of connection terminals to meet the needs of energy storage and release. In the field of new energy vehicles, the widespread adoption of high-voltage platforms has become a significant trend in industry development. The substantial increase in charging power places stringent demands on the performance of multi-contact high-current connection terminals. Under high-voltage conditions, the stability and safety of current transmission are paramount. Existing multi-contact high-current connection terminals are prone to overheating under high voltage and high current, which not only affects their lifespan but may also pose safety hazards. Furthermore, the contact areas of the connection terminals are subjected to repeated impacts and vibrations, causing slight displacement and relative slippage between the originally tightly connected contacts. This results in insufficient contact pressure, increased contact resistance, and unstable current transmission, seriously impacting safe driving. Summary of the Invention

[0003] Based on this, the purpose of the present invention is to provide a highly elastic high-current connection terminal and connector. By setting a first base with an annular structure, the stability of the terminal is improved. The first springs with two oppositely arranged extensions on the first base make the springs more stable and the current transmission more stable.

[0004] This invention is achieved through the following technical solution: A highly elastic high-current connection terminal includes: a first base and a plurality of first spring contacts that extend and are spaced apart from the first base. The first base is an annular structure, and the plurality of first spring contacts extend in pairs to opposite sides of the first base. A first contact is connected to the end of each first spring contact away from the first base.

[0005] Furthermore, the first base is fastened and fixed to form a closed ring structure by setting a dovetail-type snap-fit ​​structure.

[0006] Furthermore, the first spring includes a connecting segment and an elastic segment. One end of the connecting segment is fixedly connected to the first base, and the other end is fixedly connected to the elastic segment. The end of the elastic segment away from the connecting segment is fixedly connected to the first contact point, and the elastic segment is inclined inward from the connecting segment to the first contact point.

[0007] Furthermore, the first contact is fixed to one end of the elastic segment away from the connecting segment and protrudes from that end of the elastic segment on a relatively inward side inclined towards the elastic segment.

[0008] Furthermore, the first spring sheet is also provided with a transition section, the length of which on the side opposite to the inclination direction of the elastic section is longer than the length on the side of the inclination direction of the elastic section.

[0009] Furthermore, the first spring is also provided with a spring arm, the spring arm is provided with a first guide portion, the first guide portion is connected to the first contact point, so as to facilitate the smooth insertion of the insertion component.

[0010] Furthermore, the spring arm also includes a second inlet connected to the first inlet, and the second inlet extends in the opposite direction to the first inlet.

[0011] Furthermore, the second inlet portion is a V-shaped structure or an arc-shaped structure with a second contact point.

[0012] Furthermore, the first base has a first connecting portion at the end away from the first spring piece for fixing to an external component, and the width of the first connecting portion is equivalent to the width of the first base.

[0013] A connector comprising: any of the aforementioned highly flexible high-current connection terminals.

[0014] The present invention also provides a connector, comprising: the multi-contact high-current connection terminal described in the present invention.

[0015] The beneficial effects of this utility model are as follows: (1) By setting a dovetail-type snap-fit ​​structure at one end of the terminal to fasten the first base, the elastic deformation of the first spring piece can be stably supported. Moreover, this dovetail-type snap-fit ​​structure can be punched and formed in one piece, which is simple in structure and easy to implement; (2) The elasticity of the terminal is increased by extending a first spring piece that is oppositely disposed and inclined inward on the first base; (3) By setting a transition section, the stress of the elastic section is reduced, making the elastic section more elastic and more reliable.

[0016] To better understand and implement this application, the following detailed description is provided in conjunction with the accompanying drawings. Attached Figure Description

[0017] Figure 1 A schematic diagram of a highly flexible, high-current connection terminal provided in an embodiment of this application; Figure 2 This is a side view of the terminal. Figure 3 A side view of the terminals in other embodiments; Figure 4 This is a schematic diagram of the connector.

[0018] In the figure: 10-terminal; 11-first base; 111-first connecting part; 12-first spring; 121-first contact; 122-elastic segment; 123-spring arm; 124-connecting segment; 125-transition segment; 1231-first inlet; 1232-second inlet; 1233-fourth contact; 20-housing. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] In the description of this invention, it should be noted that the terms "vertical direction," "up," "down," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or a connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0022] As industrial energy storage systems develop towards larger capacities, new challenges are posed to multi-contact, high-current connection terminals. Large-capacity energy storage systems need to transmit larger currents and typically require stable operation over long periods, placing extremely high demands on the reliability and durability of connection terminals to meet the needs of energy storage and release. In the field of new energy vehicles, the widespread adoption of high-voltage platforms has become a significant trend in industry development. The substantial increase in charging power places stringent demands on the performance of multi-contact high-current connection terminals. Under high-voltage conditions, the stability and safety of current transmission are paramount. Existing multi-contact high-current connection terminals are prone to overheating under high voltage and high current, which not only affects their lifespan but may also pose safety hazards. Furthermore, the contact areas of the connection terminals are subjected to repeated impacts and vibrations, causing slight displacement and relative slippage between the originally tightly connected contacts. This results in insufficient contact pressure, increased contact resistance, and unstable current transmission, seriously impacting safe driving.

[0023] In traditional terminal structures, the elastic limit of the spring material will continuously decrease due to stress accumulation. When the actual working stress exceeds the decreased elastic limit, the spring will undergo irreversible plastic deformation, eventually leading to problems such as poor connection and increased contact resistance, which affects the connection reliability of the terminal.

[0024] Based on this, please refer to Figure 1-2 This application provides a highly elastic high-current connection terminal, comprising: a first base 11 and a plurality of spaced first spring contacts 12 extending from and connected to the first base 11. The first base 11 has an annular structure, and the plurality of first spring contacts 12 extend in pairs to opposite sides of the first base 11. Each first spring contact 12 has a first contact 121 for elastically abutting against a mating component to achieve current conduction.

[0025] As a preferred embodiment, terminal 10 is made of a high thermal conductivity alloy material and silver plating is selected to improve electrical and thermal conductivity, and the load-bearing capacity can reach 300~500A.

[0026] Furthermore, the first base 11 is fastened and fixed in a dovetail-type snap-fit ​​structure to form a closed ring structure, thereby ensuring the stability of the first base 11. Several first spring pieces 12 are symmetrically arranged on two opposite sides of the closed ring structure, and are opposite each other in pairs. This dovetail-type snap-fit ​​structure can be punched and integrally formed, with a simple structure, easy to implement, and can stably support the elastic deformation of the first spring pieces 12.

[0027] Furthermore, in some embodiments, the first spring 12 includes a connecting segment 124 and an elastic segment 122. One end of the connecting segment 124 is fixedly connected to the first base 11, and the other end is fixedly connected to the elastic segment 122; the end of the elastic segment 122 away from the connecting segment 124 is fixedly connected to the first contact 121. The elastic segment 122 is inclined inwards from the connecting segment 124 to the first contact 121 to increase the elasticity of the first spring 12. The first contact 121 is fixed to the end of the elastic segment 122 away from the connecting segment 124 and protrudes from that end of the elastic segment 122 on the side inclined towards the elastic segment 122, thereby increasing the contact area with the plug.

[0028] As a preferred embodiment, the first spring 12 is further provided with a transition section 125. The length of the transition section 125 on the side opposite to the inclination direction of the elastic section 122 is longer than the length on the side inclination direction of the elastic section 122, thereby reducing the stress on the elastic section 122, making the elastic section 122 more elastic and more reliable.

[0029] Please see Figure 3 Furthermore, in some embodiments, the first spring 12 is also provided with a spring arm 123, which has a first guide portion 1231. The first guide portion 1231 is connected to the first contact 121 to facilitate smooth insertion of the mating components.

[0030] Furthermore, in some embodiments, the spring arm 123 further includes a second inlet portion 1232 connected to the first inlet portion 1231, and the second inlet portion 1232 extends in the opposite direction to the first inlet portion 1231. This facilitates easier fitting of the terminal 10 to the housing, and when it is fitted with the housing, the second inlet portion 1232 abuts against the housing.

[0031] Specifically, the second inlet 1232 can be a V-shaped structure with a second contact 1233 or an arc-shaped structure, which facilitates connection with the outer casing.

[0032] Furthermore, in some embodiments, the first base 11 is provided with a first connecting portion 111 at the end away from the first spring 12; for fixing to an external component, the width of the connecting portion 111 is equivalent to the width of the first base 11 to ensure stable conduction of large current.

[0033] Furthermore, the first connecting part 111 is also provided with mounting holes.

[0034] Please see Figure 4 This application embodiment also provides a connector, which includes a terminal 10 and a housing 20 sleeved on the terminal 10 for connection with a copper busbar 30.

[0035] The copper busbar 30 is inserted into the connector housing 20 and low-voltage contacted with the first contact 121.

[0036] Compared with the prior art, the beneficial effects of the embodiments of this application are as follows: (1) By setting a dovetail-type snap-fit ​​structure at one end of the terminal to engage the first base 11, the elastic deformation of the first spring piece 12 can be stably supported. Moreover, this dovetail-type snap-fit ​​structure can be punched and formed in one piece, which is simple in structure and easy to implement; (2) The elasticity of the terminal 10 is increased by extending the first spring piece 12, which is oppositely disposed and inclined inward, on the first base 11; (3) By setting the transition section 125, the stress of the elastic section 122 is reduced, making the elastic section 122 more elastic and more reliable.

[0037] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and the present invention also intends to include these modifications and variations.

Claims

1. A highly elastic high-current connection terminal, characterized in that, include: A first base and a plurality of first spring pieces extending from and spaced apart from the first base. The first base is a ring structure. The plurality of first spring pieces extend in pairs to opposite sides of the first base. A first contact point is connected to the end of the first spring piece away from the first base.

2. The high-elasticity, high-current connection terminal according to claim 1, characterized in that: The first base is fastened together by a dovetail-type snap-fit ​​structure to form a closed ring structure.

3. The high-elasticity, high-current connection terminal according to claim 2, characterized in that: The first spring includes a connecting section and an elastic section. One end of the connecting section is fixedly connected to the first base, and the other end is fixedly connected to the elastic section. The end of the elastic section away from the connecting section is fixedly connected to the first contact point. The elastic section is inclined inward from the connecting section to the first contact point.

4. A highly elastic high-current connection terminal according to claim 3, characterized in that: The first contact is fixed to one end of the elastic segment away from the connecting segment and protrudes from that end of the elastic segment on a relatively inward side inclined towards the elastic segment.

5. A highly elastic high-current connection terminal according to claim 2, characterized in that: The first spring sheet also has a transition section, the length of which is longer on the side opposite to the inclination direction of the elastic section than the length of which is longer on the side inclination direction of the elastic section.

6. A highly elastic high-current connection terminal according to claim 5, characterized in that: The first spring is also provided with a spring arm, and the spring arm is provided with a first guide portion. The first guide portion is connected to the first contact point so as to facilitate the smooth insertion of the mating component.

7. A highly elastic high-current connection terminal according to claim 6, characterized in that: The spring arm further includes a second inlet connected to the first inlet, and the second inlet extends in the opposite direction to the first inlet.

8. A highly elastic high-current connection terminal according to claim 7, characterized in that: The second inlet is a V-shaped structure or an arc-shaped structure with a second contact point.

9. A highly elastic high-current connection terminal according to claim 1, characterized in that: The first base has a first connecting part at the end away from the first spring piece for fixing to an external component, and the width of the first connecting part is equivalent to the width of the first base.

10. A connector, characterized in that, include: The high-elasticity, high-current connection terminal according to any one of claims 1-9.

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