Terminal and connector

Abstract

A first contact part and a second contact part are correspondingly arranged on one group of opposite walls of a main body part of the terminal, at least one of the first contact part and the second contact part is of an elastic arm structure, a supporting part is arranged on the inner wall of the main body part, and when a matched terminal is inserted into the terminal, the supporting part is arranged on the inner wall of the main body part. The free end of the elastic arm structure abuts against the supporting part, so that the contact positive force of the terminal can be improved, the contact resistance of the terminal can be reduced, and the stability after the terminal is connected with a matched terminal is improved. Furthermore, the stability of the connector adopting the terminal can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical connection, in particular to a terminal and a connector. Background Art

[0002] During the driving of an automobile, all components of the automobile need to work and cooperate closely with each other. Among the cooperation of various components of the automobile, the connector plays a very important role. The terminal is the core part of the automobile connector to complete the electrical connection function, and its main function is to provide a stable electrical connection to ensure the normal operation of the automobile electrical system. The quality of the automobile terminal directly affects the stability and safety of the automobile electrical system.

[0003] With the development of the automobile industry, high requirements for miniaturization and light weight are put forward for connectors, and thus the size of the terminal also becomes smaller. At present, due to the limitation of the size of the existing small-sized terminals, it is easy to have a low contact normal force during use, resulting in low contact stability, which may lead to electrical system failures and even safety accidents such as vehicle fires. In terms of the conduction performance of the terminal, the greater the contact normal force of the terminal, the better. The greater the normal force, the smaller the contact resistance, the better the conduction, and the higher the stability. Therefore, there is an urgent need for a small-sized terminal with a large contact normal force. Summary of the Utility Model

[0004] In view of this, the purpose of the present utility model is to provide a terminal and a connector to solve the technical problems mentioned in the background art.

[0005] To achieve the above purpose, the technical solution adopted by the present utility model is: a terminal is inserted and cooperated with a mating terminal. The terminal includes a box-shaped main body portion and a connecting portion integrally provided with the main body portion. On a set of opposite walls of the main body portion, a first contact portion and a second contact portion are correspondingly provided. An insertion area for inserting the mating terminal is formed between the first contact portion and the second contact portion. At least one of the first contact portion and the second contact portion is an elastic arm structure. The free end of the elastic arm structure moves forward along the insertion direction of the mating terminal when the mating terminal is inserted into the terminal. A support portion is provided on the inner wall of the main body portion along the moving path of the free end of the elastic arm structure. When the mating terminal is inserted into the terminal, the free end of the elastic arm structure abuts against the support portion.

[0006] In some embodiments, the first contact portion is an elastic arm structure, and at least one contact contact protruding towards the second contact portion is provided on the elastic arm structure.

[0007] In some embodiments, the first contact portion includes a first bending portion inclined towards the second contact portion and a second bending portion inclined in a direction away from the second contact portion. The connection between the first bending portion and the second bending portion forms the contact contact.

[0008] In some embodiments, one end of the second bent portion away from the first bent portion has a reinforcing portion bent toward the first bent portion. When the mating terminal is inserted into the terminal, the free end of the elastic arm structure and the reinforcing portion jointly abut against the supporting portion.

[0009] In some embodiments, the first contact portion and the second contact portion are respectively disposed on the bottom wall and the top wall of the main body portion;

[0010] The supporting portion is inclinedly disposed on the bottom wall, and the included angle between the supporting portion and the bottom wall is an obtuse angle.

[0011] In some embodiments, an observation window is provided on at least one side wall of the main body portion.

[0012] In some embodiments, the second contact portion is at least one convex-shaped structure protruding from the inner wall of the top wall.

[0013] In some embodiments, at least one anti-fooling structure protrudes from the outer wall of the main body portion.

[0014] In some embodiments, the terminal is formed by stamping and rolling a sheet material, and the anti-fooling structure is an anti-fooling plate stamped from the inside to the outside on the main body portion.

[0015] A connector of the present utility model includes a sheath and the terminal. At least one anti-fooling structure protrudes from the outer wall of the main body portion, and a sliding groove slidably engaged with the anti-fooling structure is provided on the inner wall of the sheath.

[0016] In some embodiments, the terminal is formed by stamping and rolling a sheet material, and the anti-fooling structure is an anti-fooling plate stamped from the inside to the outside on the main body portion.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows: In the present utility model, a first contact portion and a second contact portion are correspondingly provided on a set of opposite walls of the terminal main body portion. At least one of the first contact portion and the second contact portion is an elastic arm structure. A supporting portion is provided on the inner wall of the main body portion. When the mating terminal is inserted into the terminal, the free end of the elastic arm structure abuts against the supporting portion, so that the contact positive force of the terminal can be improved, and further the contact resistance of the terminal can be reduced, and the stability after the terminal is connected to the mating terminal can be improved; further, the stability of the connector using the terminal can also be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings incorporated in the specification and constituting a part of the specification illustrate embodiments of the present utility model and, together with the description, are used to explain the principles of the present utility model.

[0019] Figure 1 Structural schematic diagram of the terminal provided by the present utility model;

[0020] Figure 2 is Figure 1 Structural schematic diagram of the terminal shown from another angle;

[0021] Figure 3 is Figure 1 Side view of the terminal shown;

[0022] Figure 4 is Figure 1 Cross-sectional view of the terminal shown;

[0023] Figure 5 is Figure 1 Cooperating schematic diagram of the terminal shown and the mating terminal;

[0024] Figure 6 Cross-sectional view of the connector provided by the present utility model.

[0025] The markings in the figures are as follows:

[0026] 1. Terminal; 2. Mating terminal; 3. Sheath; 4. Chute;

[0027] 10. Main body part; 101. Bottom wall; 102. First side wall; 103. Second side wall; 104. First top wall; 105. Second top wall; 106. Observation window;

[0028] 20. Connection part; 201. First crimping area; 202. Second crimping area;

[0029] 30. First contact part; 301. Elastic arm structure; 302. Contact contact; 303. First bending part; 304. Second bending part; 305. Reinforcing part;

[0030] 40. Second contact part;

[0031] 50. Support part;

[0032] 60. Insertion area;

[0033] 70. Anti-fooling structure. Detailed implementation manners

[0034] Now, various exemplary embodiments of the present utility model will be described in detail with reference to the accompanying drawings. It should be noted that: Unless otherwise specifically stated, the relative arrangements, numerical expressions, and numerical values of the components and steps set forth in these embodiments do not limit the scope of the present utility model.

[0035] The following description of at least one exemplary embodiment is merely illustrative and in no way restrictive of the present utility model, its applications, or uses.

[0036] Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such technologies, methods, and devices should be regarded as part of the specification.

[0037] In all examples shown and discussed herein, any specific values should be construed as merely exemplary and not as limitations. Accordingly, other examples of the exemplary embodiments may have different values.

[0038] As Figures 1-5 shown, a terminal 1 is in plug-in fit with a mating terminal 2. The terminal 1 includes a box-shaped main body portion 10 and a connecting portion 20 integrally provided with the main body portion 10. The box-shaped structure of the main body portion 10 specifically includes a bottom wall 101, a first side wall 102, a second side wall 103, and a top wall composed of a first top wall 104 and a second top wall 105. Among them, the second top wall 105 covers the outside of the first top wall 104. The connecting portion 20 is used to connect a cable, and is provided with a first crimping area 201 for crimping the conductive core of the cable and a second crimping area 202 for crimping the insulator of the cable. The terminal 1 is integrally formed by stamping and rolling a sheet, which can reduce the manufacturing cost of the terminal 1.

[0039] As Figure 3 and Figure 4 shown, a first contact portion 30 and a second contact portion 40 are correspondingly provided on a group of opposite walls of the main body portion 10. A plugging area 60 for plugging the mating terminal 2 is formed between the first contact portion 30 and the second contact portion 40. At least one of the first contact portion 30 and the second contact portion 40 is an elastic arm structure 301. The elastic arm structure 301 has a free end, and the free end of the elastic arm structure 301 extends into the interior of the box-shaped main body portion 10. When the mating terminal 2 is inserted into the terminal 1, the free end of the elastic arm structure 301 moves forward along the insertion direction of the mating terminal 2. A support portion 50 is provided on the inner wall of the main body portion 10 along the moving path of the free end of the elastic arm structure 301. When the mating terminal 2 is inserted into the terminal 1, the free end of the elastic arm structure 301 abuts against the support portion 50. For details, please refer to Figure 5 , so that the positive contact force of the terminal 1 can be improved, and further, the contact resistance of the terminal 1 can be reduced, and the stability after the connection between the terminal 1 and the mating terminal 2 can be improved. Further, the stability of the connector using the terminal 1 can also be improved.

[0040] In one embodiment, as Figures 3-5As shown, the first contact portion 30 is an elastic arm structure 301, and the second contact portion 40 is at least one convex structure protruding from the inner wall of the top wall, specifically formed by stamping from the outside to the inside on the first top wall 104, thereby reducing the manufacturing cost of the terminal 1. The elastic arm structure 301 has at least one contact contact 302 protruding toward the second contact portion 40. When the mating terminal 2 is inserted into the terminal 1, the mating terminal 2 is clamped between the second contact portion 40 and the contact contact 302 of the first contact portion 30, realizing the electrical connection between the mating terminal 2 and the terminal 1. Specifically, the first contact portion 30 includes a first bending portion 303 inclined toward the second contact portion 40 and a second bending portion 304 inclined in a direction away from the second contact portion 40. The connection between the first bending portion 303 and the second bending portion 304 forms the above-mentioned contact contact 302. When the mating terminal 2 is inserted into the terminal 1, by pressing the contact contact 302, the free end of the elastic arm structure 301 moves forward along the insertion direction of the mating terminal 2, and then the free end of the elastic arm structure 301 abuts against the support portion 50.

[0041] Furthermore, as Figure 4 and Figure 5 shown, one end of the second bending portion 304 away from the first bending portion 303 has a strengthening portion 305 bent toward the first bending portion 303. When the mating terminal 2 is inserted into the terminal 1, the free end of the elastic arm structure 301 and the strengthening portion 305 jointly abut against the support portion 50. For details, please refer to Figure 5 , the strengthening portion 305 can improve the strength of the free end of the elastic arm structure 301, preventing the free end of the elastic arm structure 301 from deforming after multiple insertions and removals of the terminal 1, so that when the mating terminal 2 is inserted, the purpose of supporting the free end of the elastic arm structure 301 cannot be achieved.

[0042] In an embodiment, as Figures 3-5 shown, the first contact portion 30 and the second contact portion 40 are respectively arranged on the bottom wall 101 and the top wall of the main body portion 10, specifically on the first top wall 104. The support portion 50 is inclined on the bottom wall 101, and the included angle A between the support portion 50 and the bottom wall 101 is an obtuse angle, generally set between 120 - 150°. Here, if the included angle A is set too large, when the mating terminal 2 is inserted into the terminal 1, the free end of the elastic arm structure 301 will directly cross over the support portion 50, so that the support portion 50 cannot achieve the designed purpose; if the included angle A is set too small, there is not enough space inside the support portion 50 to accommodate the free end of the elastic arm structure 301 and the strengthening portion 305, and the situation where the free end of the elastic arm structure 301 directly crosses over the support portion 50 will still occur.

[0043] Furthermore, as Figure 1 and Figure 2As shown, at least one side wall of the main body portion 10 is provided with an observation window 106. In this embodiment, observation windows 106 are provided on both the first side wall 102 and the second side wall 103 of the main body portion 10. Through the observation window 106, when the mating terminal 2 is inserted into the terminal 1, the abutting condition between the free end of the elastic arm structure 301 and the supporting portion 50 can be observed, which is conducive to the design and optimization of the structure of the terminal 1.

[0044] In one embodiment, as Figures 1-5 shown, at least one anti-fooling structure 70 protrudes from the outer wall of the main body portion 10. In this embodiment, the anti-fooling structure 70 is an anti-fooling plate stamped from the inside to the outside on the main body portion 10. The anti-fooling plates are specifically provided on the second top wall 105 and the left and right sides of the bottom wall 101 respectively. A sliding groove 4 that slidably cooperates with the anti-fooling structure 70 is provided on the inner wall of the connector sheath 3. For details, please refer to Figure 6 , the setting of the anti-fooling plate facilitates the insertion of the terminal 1 into the sheath 3 on the one hand, and on the other hand, can play the role of positioning the terminal 1 after the terminal 1 is inserted into the sheath 3, preventing the terminal 1 from shaking left and right in the sheath 3. As is well known, shaking will also have a certain impact on the contact of the terminal 1. Therefore, the anti-fooling plate can also play the role of improving the stability between the terminal 1 and the mating terminal 2.

[0045] The present utility model further provides a connector, including a sheath 3 and the above-mentioned terminal 1. At least one anti-fooling structure 70 protrudes from the outer wall of the main body portion 10. In this embodiment, the anti-fooling structure 70 is an anti-fooling plate stamped from the inside to the outside on the main body portion 10. A sliding groove 4 that slidably cooperates with the anti-fooling structure 70 is provided on the inner wall of the connector sheath 3. For details, please refer to Figure 6 , the setting of the anti-fooling plate facilitates the insertion of the terminal 1 into the sheath 3 on the one hand, and on the other hand, can play the role of positioning the terminal 1 after the terminal 1 is inserted into the sheath 3, preventing the terminal 1 from shaking left and right in the sheath 3. As is well known, shaking will also have a certain impact on the contact of the terminal 1. Therefore, the anti-fooling plate can also play the role of improving the stability between the terminal 1 and the mating terminal 2.

[0046] In summary, when the mating terminal 2 is inserted into the terminal 1, the free end of the elastic arm structure 301 abuts against the supporting portion 50, so that the positive contact force of the terminal 1 can be improved, and further the contact resistance of the terminal 1 can be reduced, and the stability after the connection between the terminal 1 and the mating terminal 2 can be improved; further, the stability of the connector using the terminal 1 can also be improved.

[0047] Although some specific embodiments of the present utility model have been described in detail by way of examples, those skilled in the art should understand that the above examples are only for illustration purposes and not for limiting the scope of the present utility model. Those skilled in the art should understand that the above embodiments can be modified without departing from the scope and spirit of the present utility model. The scope of the present utility model is defined by the appended claims.

Claims

1. A terminal is inserted and cooperated with a mating terminal. The terminal includes a box-shaped main body portion and a connecting portion integrally provided with the main body portion. On a set of opposite walls of the main body portion, a first contact portion and a second contact portion are correspondingly provided. A plugging area for plugging the mating terminal is formed between the first contact portion and the second contact portion. It is characterized in that: At least one of the first contact portion and the second contact portion is an elastic arm structure. When the mating terminal is inserted into the terminal, the free end of the elastic arm structure moves forward along the insertion direction of the mating terminal. A support portion is provided on the inner wall of the main body portion along the movement path of the free end of the elastic arm structure. When the mating terminal is inserted into the terminal, the free end of the elastic arm structure abuts against the support portion.

2. The terminal according to claim 1, characterized in that: The first contact portion is an elastic arm structure, and at least one contact contact protruding toward the second contact portion is provided on the elastic arm structure.

3. The terminal according to claim 2, wherein: The first contact portion includes a first bent portion inclined toward the second contact portion and a second bent portion inclined in a direction away from the second contact portion. The connection portion between the first bent portion and the second bent portion forms the contact contact.

4. The terminal according to claim 3, characterized in that: One end of the second bent portion away from the first bent portion has a reinforcing portion bent toward the first bent portion. When the mating terminal is inserted into the terminal, the free end of the elastic arm structure and the reinforcing portion jointly abut against the support portion.

5. A terminal according to claim 1, characterized in that: The first contact portion and the second contact portion are respectively provided on the bottom wall and the top wall of the main body portion; The support portion is inclined on the bottom wall, and the included angle between the support portion and the bottom wall is an obtuse angle.

6. The terminal according to claim 5, characterized in that: At least one observation window is provided on at least one side wall of the main body portion.

7. A terminal according to claim 5, characterized in that: The second contact portion is at least one convex-shaped structure protruding from the inner wall of the top wall.

8. A terminal according to claim 1, characterized in that: At least one anti-fooling structure protrudes from the outer wall of the main body portion.

9. A terminal according to claim 8, characterized in that: The terminal is formed by stamping and rolling a sheet, and the anti-fooling structure is an anti-fooling plate stamped from the inside to the outside on the main body portion.

10. A connector, comprising a sheath and the terminal according to any one of claims 1-9, characterized in that: At least one anti-fooling structure protrudes from the outer wall of the main body portion, and a sliding groove slidably matched with the anti-fooling structure is provided on the inner wall of the sheath.

11. A connector according to claim 10, characterized in that: The terminal is formed by stamping and rolling a sheet, and the anti-fooling structure is an anti-fooling plate stamped from the inside to the outside on the main body portion.

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