Large-current connector for test

Abstract

The utility model provides a high-current connector for a test, and belongs to the technical field of connectors. In order to solve the problem that a plug connector is easy to damage in a large-current test, the utility model provides a large-current plug connector for the test, which comprises a shell; the female end assembly is arranged in the shell and comprises a movable conducting strip and a fixed conducting strip which are arranged in a stacked mode, the fixed conducting strip is fixed in the shell, an elastic piece is arranged on the side, away from the fixed conducting strip, of the movable conducting strip, and the movable conducting strip is clamped between the shell and the fixed conducting strip through the elastic piece; the movable conducting strip can push the elastic piece to move in the direction away from the fixed conducting strip under the action of external force, and a clamping space used for clamping the male terminal is formed between the movable conducting strip and the fixed conducting strip. The conductive part and the elastic part are independently arranged, so that the area of the conductive part can be increased, the elasticity can be ensured, the heating value of the plug connector is reduced, the conductive performance is improved, the service life is prolonged, and the plug connector is suitable for large-current tests.

Description

Technical Field

[0001] This application relates to the field of connector technology, and more particularly to high-current connectors for testing. Background Technology

[0002] In automotive high-voltage electronic power products, such as on-board chargers, DC / DC converters, and motor controllers, the inputs and outputs of these electronic devices typically use quick-plug connectors, and the connectors themselves are generally as follows: Figure 1 The male head shown.

[0003] When these electronic devices undergo aging tests, they need to be connected to the equipment via connectors. During the aging tests, the input and output currents are higher than the rated values, the operating time is longer, and the operating conditions are more demanding. Using conventional connectors often results in the connectors losing elasticity due to repeated insertion and removal and high temperatures. This leads to overheating of the connector area, which in turn further reduces the elasticity of the springs, eventually causing the connector terminals to burn out. Utility Model Content

[0004] The purpose of this application is to solve the problem that connectors in the prior art are easily damaged during high-current tests. Therefore, this application provides a high-current test connector that independently sets the conductive and elastic components, which can increase the area of ​​the conductive component and ensure the elasticity, thereby reducing the heat generation of the connector, improving conductivity, and extending service life, making it suitable for high-current testing.

[0005] This application provides a high-current connector for testing, including:

[0006] case;

[0007] The female terminal assembly disposed within the housing includes a movable conductive sheet and a fixed conductive sheet stacked together. The fixed conductive sheet is fixed within the housing. An elastic element is disposed on the side of the movable conductive sheet opposite to the fixed conductive sheet. The movable conductive sheet is clamped between the housing and the fixed conductive sheet by the elastic element. Under the action of an external force, the movable conductive sheet can push the elastic element to move in the direction opposite to the fixed conductive sheet, thereby forming a clamping space between the movable conductive sheet and the fixed conductive sheet for clamping the male terminal.

[0008] By adopting the above technical solution, the conductive and elastic components are set independently, which increases the area of ​​the conductive component and ensures the elasticity. For example, an elastic material with better elasticity than the conductive component can be used to form the elastic component, thereby reducing the heat generation of the connector, improving conductivity, and extending service life. This is suitable for high-current testing. Specifically, by using a movable conductive plate and a fixed conductive plate with a large contact area with the male terminal to form the female terminal, the heat generation of the connector is reduced. Furthermore, the elastic component set above the movable conductive plate enhances the contact pressure, ensuring the conductivity between the connectors, further reducing heat generation and extending service life. At the same time, the processing and assembly of the elastic component, movable conductive plate, and fixed conductive plate that make up the female terminal assembly are simple and low-cost, thus making the testing cost controllable.

[0009] In some embodiments, a support block is provided on the edge of the movable conductive sheet or the fixed conductive sheet, and the support block forms a gap space between the movable conductive sheet and the fixed conductive sheet, the height of the gap space being less than the height of the clamping space.

[0010] By adopting the above technical solution, a space is formed between the movable conductive sheet and the fixed conductive sheet through the support block, which facilitates the insertion of the male terminal, improves the smoothness of insertion and removal, and makes it more convenient to use.

[0011] In some embodiments, the elastic element is a V-shaped spring sheet, and two elastic elements are provided, which are symmetrically arranged.

[0012] By adopting the above technical solution, pressure is applied to the movable conductive sheet by two symmetrically arranged V-shaped springs forming an elastic element, which improves the stability and reliability of the contact pressure provided, thereby extending the service life of the connector.

[0013] In some embodiments, the two elastic elements are spaced apart by a first distance.

[0014] By adopting the above technical solution, the wear accumulation caused by mutual friction between the two elastic elements during deformation can be avoided, which would affect the stability and reliability of the provided elastic force, thus making it more suitable for high-frequency insertion and removal in the test; in addition, the two elastic elements are spaced apart, which reduces the requirements for assembly accuracy and makes assembly simpler.

[0015] In some embodiments, the tips of the two elastic elements are arranged facing each other.

[0016] By adopting the above technical solution, the smoothness of the up-and-down movement of the movable conductive component and the uniformity of the contact pressure provided can be improved, thereby ensuring conductivity and extending the service life of the connector.

[0017] In some embodiments, the movable conductive sheet has a groove on the side opposite to the fixed conductive sheet, and the elastic element is disposed in the groove.

[0018] By adopting the above technical solution, the assembly difficulty is further reduced by using grooves to assemble elastic components.

[0019] In some embodiments, both the movable conductive sheet and the fixed conductive sheet are made of brass.

[0020] By adopting the above technical solution, brass with good electrical conductivity is used as the female terminal, thereby further reducing heat generation.

[0021] In some embodiments, the elastic element is made of 65Mn spring steel.

[0022] By adopting the above technical solution, elastic components are prepared using 65Mn spring steel, which has high temperature resistance, high elastic limit, excellent fatigue life, low cost and easy processing, thereby further ensuring the stability and reliability of the contact pressure provided and ensuring the conductivity.

[0023] Other features and corresponding beneficial effects of this application will be described in the latter part of the specification, and it should be understood that at least some of the beneficial effects will become obvious from the description in this application. Attached Figure Description

[0024] Figure 1 This is a structural diagram of a male connector in the prior art;

[0025] Figure 2 This is an exploded view of the mother component of this application;

[0026] Figure 3 This is a schematic diagram of the structure after the male connector and the female connector of this application are connected;

[0027] Figure 4 for Figure 3 A cross-sectional view.

[0028] Explanation of reference numerals in the attached figures:

[0029] 10. Male connector; 11. Male terminal;

[0030] 100. Female end assembly; 110. Movable conductive sheet; 111. Groove; 120. Fixed conductive sheet; 121. Support block; 130. Elastic element;

[0031] 200. Shell. Detailed Implementation

[0032] The following specific embodiments illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Although the description of this application is presented in conjunction with preferred embodiments, this does not mean that the features of this application are limited to this embodiment. On the contrary, the purpose of describing the application in conjunction with embodiments is to cover other options or modifications that may be derived based on the claims of this application. To provide a thorough understanding of this application, many specific details will be included in the following description. This application may also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of this application, some specific details will be omitted in the description. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0033] It should be noted that in this specification, similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0034] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this application and for simplification, 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 this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more. Unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or a connection within two elements. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0035] Please see Figure 1 , Figure 1 This is a schematic diagram of the structure of the male connector 10 in the prior art.

[0036] The connectors of automotive electronic devices are usually male and include a housing. Inside the housing, there are usually multiple male terminals 11 arranged side by side at intervals. The male terminals 11 are usually made of conductive sheets.

[0037] The corresponding female connector usually has a female terminal corresponding to the male terminal 11. The female terminal usually uses an elastic conductive sheet, that is, it is generally made of copper or copper alloy and is bent to provide both contact area and contact pressure. However, in this case, the contact area is usually small and the contact pressure is not suitable for the test environment of high frequency insertion and removal and high current.

[0038] Therefore, this application provides a high-current connector for testing, which independently sets the conductive and elastic components, thereby increasing the area of ​​the conductive components and ensuring the elasticity, thereby reducing the heat generation of the connector, improving conductivity, extending service life, and making it suitable for high-current testing.

[0039] Please see Figure 2-4 , Figure 2 This is an exploded view of the mother component 100 of this application; Figure 3 This is a schematic diagram of the structure after the male connector and the female connector 10 of this application are connected; Figure 4 for Figure 3 A cross-sectional view.

[0040] The high-current connector used in this test includes a housing 200 and a female terminal assembly 100 disposed within the housing 200.

[0041] The female terminal assembly 100 includes a movable conductive sheet 110 and a fixed conductive sheet 120 stacked together. The fixed conductive sheet 120 is fixed inside the housing 200. An elastic member 130 is provided on the side of the movable conductive sheet 110 away from the fixed conductive sheet 120. The movable conductive sheet 110 is clamped between the housing 200 and the fixed conductive sheet 120 by the elastic member 130. Under the action of external force (e.g., insertion of a male terminal), the movable conductive sheet 110 can push the elastic member 130 to move in the direction away from the fixed conductive sheet 120, so that a clamping space for clamping the male terminal 11 is formed between the movable conductive sheet 110 and the fixed conductive sheet 120.

[0042] This method sets the conductive component and the elastic component 130 independently, which can increase the area of ​​the conductive component and ensure the elasticity. For example, the elastic component 130 can be formed by using an elastic material that is different from the material of the conductive component and has better elasticity, thereby reducing the heat generation of the connector, improving the conductivity, extending the service life, and making it suitable for high current testing.

[0043] Specifically, the high-current connector used in this experiment uses a movable conductive sheet 110 and a fixed conductive sheet 120 with a large contact area with the male terminal 11 to form the female terminal, which reduces the heat generation of the connector. In addition, the elastic element 130 set above the movable conductive sheet 110 enhances the contact pressure, ensuring the conductivity between the connectors, further reducing heat generation and extending service life.

[0044] Meanwhile, the processing and assembly of the elastic element 130, movable conductive sheet 110 and fixed conductive sheet 120 of the female terminal assembly 100 composed of high current connectors in this experiment are simple and low cost, thus making the test cost controllable.

[0045] In one embodiment, a support block 121 is provided on the edge of the movable conductive sheet 110 or the fixed conductive sheet 120. The support block 121 creates a gap between the movable conductive sheet 110 and the fixed conductive sheet 120. The height of the gap is less than the height of the clamping space, which facilitates the insertion of the male terminal 11, improves the smoothness of insertion and removal, and makes it more convenient to use.

[0046] In one specific embodiment, the support block 121 is disposed on the side edge of the fixed conductive sheet 120 facing the movable conductive sheet 110, and is integrally formed with the fixed conductive sheet 120.

[0047] In one embodiment, the elastic element 130 is a V-shaped spring sheet, and two elastic elements 130 are provided. The two elastic elements 130 are symmetrically arranged, that is, the elastic element 130 composed of two symmetrically arranged V-shaped spring sheets applies pressure to the movable conductive sheet 110, which improves the stability and reliability of the contact pressure provided, thereby extending the service life of the connector.

[0048] In one embodiment, the two elastic elements 130 are spaced apart by a first distance, which avoids wear accumulation caused by mutual friction during the deformation of the two elastic elements 130, thus affecting the stability and reliability of the provided elastic force, making it more suitable for high-frequency insertion and removal in the test. Furthermore, the spaced arrangement of the two elastic elements 130 reduces the requirement for assembly precision and simplifies assembly.

[0049] In one embodiment, the tips of the two elastic members 130 are arranged facing each other, which can improve the smoothness of the up-and-down movement of the movable conductive member and the uniformity of the contact pressure provided, thereby ensuring conductivity and extending the service life of the connector.

[0050] In one embodiment, the movable conductive sheet 110 has a groove 111 on the side opposite to the fixed conductive sheet 120, and the elastic element is disposed in the groove 111. That is, the elastic element 130 is assembled through the groove 111, which further reduces the assembly difficulty.

[0051] In one embodiment, both the movable conductive sheet 110 and the fixed conductive sheet 120 are made of brass, that is, brass with good conductivity is used as the female terminal, thereby further reducing heat generation.

[0052] In one embodiment, the elastic element 130 is made of 65Mn spring steel. That is, the elastic element 130 is made of 65Mn spring steel, which has high temperature resistance, high elastic limit, excellent fatigue life, low cost and easy processing, thereby further ensuring the stability and reliability of the contact pressure provided and ensuring the conductivity.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A high-current connector for testing, characterized in that, include: case; The female terminal assembly disposed within the housing includes a movable conductive sheet and a fixed conductive sheet stacked together. The fixed conductive sheet is fixed within the housing. An elastic element is disposed on the side of the movable conductive sheet opposite to the fixed conductive sheet. The movable conductive sheet is clamped between the housing and the fixed conductive sheet by the elastic element. Under the action of an external force, the movable conductive sheet can push the elastic element to move in the direction opposite to the fixed conductive sheet, thereby forming a clamping space between the movable conductive sheet and the fixed conductive sheet for clamping the male terminal.

2. The high-current connector for testing according to claim 1, characterized in that, The movable conductive sheet or the fixed conductive sheet has a support block on its edge, and the support block creates a gap between the movable conductive sheet and the fixed conductive sheet, the height of which is less than the height of the clamping space.

3. The high-current connector for testing according to claim 1, characterized in that, The elastic element is a V-shaped spring sheet, and there are two elastic elements arranged symmetrically.

4. The high-current connector for testing according to claim 3, characterized in that, The two elastic elements are spaced a first distance apart.

5. The high-current connector for testing according to claim 1, characterized in that, The tips of the two elastic elements are arranged facing each other.

6. The high-current connector for testing according to claim 1, characterized in that, The movable conductive sheet has a groove on the side opposite to the fixed conductive sheet, and the elastic element is disposed in the groove.

7. The high-current connector for testing according to claim 1, characterized in that, Both the movable conductive sheet and the fixed conductive sheet are made of brass.

8. The high-current connector for testing according to claim 1, characterized in that, The elastic element is made of 65Mn spring steel.

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