Contact

Abstract

A contact is used for an electric connector, and is characterized by comprising a main body part which is provided with a main body limiting part; and the contact pin is provided with a contact limiting part and is used for being matched with the main body limiting part to realize electrical connection. According to the technical scheme, a welding-free structure is adopted, and the contact limiting part and the main body limiting part are arranged on the contact pin and the main body part, so that the relative positions of the contact pin and the main body part are ensured not to deviate. According to the structure, the contact pin and the main body part can be independently manufactured, the situation that the contact pin and the main body part need to be manufactured together when the main body part is manufactured is avoided, the complexity of a mold can be effectively reduced, and therefore the cost is reduced.

Description

Technical Field

[0001] The utility model relates to a contact of an electric connector. Background Art

[0002] In recent years, with the development of the connector industry, terminals, as a development direction of line-end connectors, have the characteristics of low cost and excellent performance. Terminals are used to transmit current or signals in automotive connectors and are the carrier for electrical connection. As automotive electrical functions become more and more abundant, miniaturization, reliability and intelligence of connectors will become the three major development trends of connectors.

[0003] The existing contact design adopts a welding process to weld the contact pin and the body together to achieve electrical connection, thereby conducting signals or currents; however, the welding process is relatively difficult and has a high investment cost. In addition, problems such as cold solder joints are prone to occur during the manufacturing process and are difficult to detect. When problems such as cold solder joints occur and are not detected, functional defects will occur. Utility Model Content

[0004] The purpose of the present disclosure is to provide a contact to at least partially solve the above technical problems.

[0005] In order to achieve the above-mentioned purpose, the utility model discloses a contact for an electrical connector, characterized in that it comprises: a main body portion, the main body portion is provided with a main body limiting portion; and a contact pin, the contact pin is provided with a contact limiting portion, which is used to cooperate with the main body limiting portion to achieve electrical connection.

[0006] In one embodiment, a contact is characterized in that it further comprises: a crimping portion connected to the main body portion and used for crimping a wire.

[0007] In one embodiment, the main body includes: a bottom wall; two side walls, which are formed by the bottom wall extending upward; and a top wall, which is formed by one of the side walls extending toward the other side wall.

[0008] In one embodiment, the main body limiting portion includes: a front main body limiting portion, which is a through hole structure and is located at one end of the main body close to the contact pin; a middle main body limiting portion, which is a planar structure perpendicular to the two side walls formed by extending from one side wall to the other side wall, and is located in the middle of the main body or in an adjacent area of ​​the middle; and a rear main body limiting portion, which is a through hole structure and is located at one end of the main body away from the contact pin.

[0009] In one embodiment, the front body limiting portion is a U-shaped open through-hole structure.

[0010] In one embodiment, the rear body limiting portion is a square closed through-hole structure.

[0011] In one embodiment, the front main body limiting portion includes: a front limiting spring sheet, which is a planar structure perpendicular to the side wall formed by extending one side wall toward the other side wall, and is used to limit the relative displacement between the contact pin and the main body.

[0012] In one embodiment, the rear main body limiting portion includes: a rear limiting spring sheet, which is a planar structure approximately perpendicular to the side wall formed by extending one side wall toward the other side wall, and is used to limit the relative displacement between the contact pin and the main body.

[0013] In one embodiment, a first front guide portion is provided on the front limiting spring sheet for guiding the insertion of the contact pin.

[0014] In one embodiment, a second front guide portion is provided on the front main body limiting portion, and the second front guide portion is located on the bottom wall and corresponds to the first front guide portion, and is used to guide the insertion of the contact pin.

[0015] In one embodiment, at least one contact spring is disposed on the bottom wall, and the contact spring has a contact convex bump for connecting with the contact pin to ensure electrical performance connection.

[0016] In one embodiment, a limiting hole is provided in one of the side walls.

[0017] In one embodiment, a limiting protrusion is provided on the top wall, and the limiting protrusion is used to cooperate with the limiting hole to position the top wall.

[0018] In one embodiment, the contact pin comprises: a contact limiting portion, the contact limiting portion being configured to contact the main body portion to limit movement of the contact pin in the main body portion.

[0019] In one embodiment, the contact limiting portion includes: a front contact limiting portion, which is a protrusion on the contact pin and passes through the through hole of the front main body limiting portion; a rear contact limiting portion, which is a protrusion on the contact pin and passes through the through hole of the rear main body limiting portion; and a middle contact limiting portion, which is arranged in the middle of the front contact limiting portion and the rear contact limiting portion and cooperates with the side wall.

[0020] In one embodiment, the rear contact limiting portion includes: a rear guide portion, which is located at the tail of the contact needle and is used to prevent the contact needle from interfering with the main body when inserted into the main body, and has a guiding function.

[0021] In one embodiment, an outer surface of the rear contact limiting portion is lower than an outer surface of the main body portion.

[0022] In one embodiment, the structure of the middle contact limiting portion is approximately arc-shaped to reduce the friction between the contact pin and the side wall when the contact pin is inserted into the body.

[0023] According to a contact of the utility model, through the above technical solution, a welding-free structure is adopted, and the contact limiting part and the main body limiting part are arranged on the contact pin and the main body to ensure that the relative position of the contact pin and the main body is not offset. The contact stability between the contact pin and the main body is ensured by the limiting spring sheet and the contact spring sheet arranged on the main body, and the electrical performance is ensured. At the same time, the structure can realize the separate manufacturing of the contact pin and the main body, avoiding the need to manufacture the contact pin and the main body together when the main body is manufactured, which can effectively reduce the complexity of the mold, thereby reducing the cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The following drawings of the present invention are used as a part of the present invention for understanding the present invention. The drawings show the implementation of the present invention and its description, and are used to explain the principle of the present invention.

[0025] In the attached figure:

[0026] Figure 1 A three-dimensional view of a contact body with the bottom wall facing upward in one embodiment of the utility model;

[0027] Figure 2 A three-dimensional view of a contact with a main body portion and a top wall facing upward in one embodiment of the utility model;

[0028] Figure 3 A three-dimensional view of a contact pin in one embodiment of the utility model;

[0029] Figure 4 A side perspective view of a main body and a crimping portion in one embodiment of the utility model;

[0030] Figure 5 A side perspective view of a contact in one embodiment of the utility model;

[0031] Figure 6 A top perspective view of a contact in one embodiment of the utility model;

[0032] Figure 7 This is a schematic diagram of the assembly insertion direction of the contact pin in one embodiment of the utility model;

[0033] Figure 8 This is a schematic diagram of the angle between the limiting spring sheet and the side wall in one embodiment of the utility model;

[0034] Fig. 9 A top perspective view of a contact in another embodiment of the utility model;

[0035] Fig.10 This is a top perspective view of a contact in another embodiment of the present invention.

[0036] Description of reference numerals:

[0037] 100: contact; 10: main body; 101: bottom wall; 102: side wall; 104: top wall; 105: front main body limiting portion; 106: rear main body limiting portion; 107: middle main body limiting portion; 108: limiting hole; 109: limiting spur; 110: latch; 111: main body guide portion; 112: error prevention structure; 113: contact spring; 116: contact convex bump; 118: contact point; 119: front limiting spring; 120: rear limiting spring; 121: first front guide portion; 122: second front guide portion; 20: crimping portion; 201: wire clamp; 202: insulation clamp; 203: rib structure; 30: contact pin; 301: contact matching portion; 302: front contact limiting portion; 303: rear contact limiting portion; 304: middle contact limiting portion; 306: rear guide portion; 309: front contact guide portion. DETAILED DESCRIPTION

[0038] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0039] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0040] In the present disclosure, unless otherwise stated, the directional words used, such as "inside" and "outside", refer to the inside and outside relative to the outline of the component or structure itself. In addition, it should be noted that the terms used, such as "first" and "second", etc., are used to distinguish one element from another element and do not have order and importance. In addition, in the description with reference to the drawings, the same mark in different drawings represents the same element.

[0041] Reference Figure 1 to Figure 2An example of a contact in a specific embodiment of the present application is provided. A contact 100 is used in an electrical connector, characterized in that it includes: a main body 10, the main body 10 is provided with a main body limiting portion; and a contact pin 30, the contact pin 30 is provided with a contact limiting portion, which is used to cooperate with the main body limiting portion to achieve electrical connection. Specifically, the utility model adopts a welding-free structure, by providing a main body limiting portion on the main body 10 of the contact 100, and providing a contact limiting portion that cooperates with the main body limiting portion on the contact pin 30, the main body limiting portion cooperates with the contact limiting portion to limit the movement of the contact pin 30 in the front-to-back, left-to-right, and up-and-down directions.

[0042] According to a contact of the utility model, through the above technical solution, a welding-free structure is adopted, and the contact limiting part and the main body limiting part are arranged on the contact pin 30 and the main body 10 to ensure that the relative position of the contact pin and the main body is not offset. The contact stability between the contact pin and the main body is ensured by the limiting spring sheet and the contact spring sheet arranged on the main body, and the electrical performance is ensured. At the same time, the structure can realize the separate manufacturing of the contact pin and the main body, avoiding the need to manufacture the contact pin and the main body together when the main body is manufactured, which can effectively reduce the complexity of the mold, thereby reducing the cost.

[0043] In one embodiment, Figure 1 As shown, a contact 100 is characterized in that it also includes: a crimping portion 20, which is connected to the main body 10 and is used to crimp the wire. Specifically, in order to better crimp the wire, the crimping portion 20 may include a conductor clamp 201 and an insulating clamp 202, and the conductor clamp 201 and the insulating clamp 202 respectively include a chamfer structure to avoid interference between the wings on both sides when the wire is crimped; the conductor clamp 201 also includes a rib structure 203 to increase the holding force of the wire and prevent the wire from peeling off the conductor clamp 201.

[0044] In one embodiment, Figure 1 to Figure 2 As shown, the main body 10 includes: a bottom wall 101; two side walls 102, which are formed by the bottom wall 101 extending upward; and a top wall 104, which is formed by one of the side walls 102 extending toward the other side wall 102. In order to better set the main body limiting part on the main body 10, the main body 10 can be set to a structure with four walls, that is, the bottom wall 101, the two side walls 102 and the top wall 104, so that it can better cooperate with the contact pin 30. The side wall 102 is provided with an error-proof structure 112, which is used to prevent the terminal from being inserted into the sleeve hole from the wrong direction. The bottom wall 104 and the top wall 101 are also provided with a main body guide part 111, which extends from the back to the front and forms an angle of 110°-150° with the bottom wall 104 and the top wall 104, and plays a guiding role when the terminal is inserted into the sleeve, so that the terminal can be smoothly inserted into the sleeve.

[0045] In one embodiment, the main body limiting portion includes: a front main body limiting portion 105, which is a through-hole structure and is located at one end of the main body 10 close to the contact pin 30; a middle main body limiting portion 107, which is a plane structure extending from one side wall 102 to the other side wall 102 and perpendicular to the two side walls 102, and is located in the middle part or the adjacent area of ​​the middle part of the main body 10; and a rear main body limiting portion 106, which is a through-hole structure and is located at one end of the main body 10 away from the contact pin 30. When the contact pin 30 is inserted into the main body 10 in the assembly insertion direction, the contact pin 30 will first pass through the front main body limiting portion 105, then pass through the middle main body limiting portion 107, and finally pass through the rear main body limiting portion 106. The middle main body limiting portion 107 is a plane structure extending from one side wall 102 to the other side wall 102 and perpendicular to the two side walls 102, which will fit with the contact pin 30 to limit the relative displacement of the contact pin 30 and the main body 10. Specifically, the middle body limiting portion 107 is located near the top wall 104, in the cavity of the main body 10 and in a plane structure perpendicular to the two side walls 102. After the contact pin 30 passes through the three body limiting portions successively, the contact limiting portion of the contact pin 30 will cooperate with the three body limiting portions of the main body 10 to fix the contact pin 30 in the main body 10.

[0046] In one embodiment, Figure 1 As shown, the front body limiting portion 105 is a U-shaped open through-hole structure.

[0047] In one embodiment, Figure 1 As shown, the rear body limiting portion 106 is a square closed through-hole structure.

[0048] In one embodiment, Figure 5 and Figure 8 As shown, the front main body limiting part 105 includes: a front limiting spring sheet 119, which is a plane structure perpendicular to the side wall formed by extending one side wall 102 toward the other side wall 102, and is used to limit the relative displacement of the contact pin 30 and the main body 10. Before the contact pin 30 is inserted, the angle between the front limiting spring sheet 119 and the side wall 102 is α, and after the contact pin 30 is inserted, the angle between the front limiting spring sheet 119 and the side wall is β, which satisfies α≥β, that is, the distance between the front limiting spring sheet 119 and the bottom wall 101 is less than or equal to the thickness of the contact pin 30, so that when the contact pin 30 is inserted into the main body 10, the front limiting spring sheet 119 will be close to the contact pin 30, and will give the contact pin 3 a force in the direction of the bottom wall 101, so that the contact pin 30 can be close to the bottom wall 101, ensuring that the contact pin 30 will not move randomly in the up and down directions in the main body 10.

[0049] In one embodiment, Figure 5 and Figure 8 As shown, the rear main body limiting part 106 includes: a rear limiting spring piece 120, which is a planar structure approximately perpendicular to the side wall 102 formed by extending one side wall 102 toward the other side wall 102, and is used to limit the relative displacement of the contact pin 30 and the main body 10. Before the contact pin 30 is inserted, the angle between the rear limiting spring piece 120 and the side wall 102 is α, and after the contact pin 30 is inserted, the angle between the rear limiting spring piece 120 and the side wall is β, which satisfies α≥β, that is, the distance between the rear limiting spring piece 120 and the bottom wall 101 is less than or equal to the thickness of the contact pin 30, so that when the contact pin 30 is inserted into the main body 10, the rear limiting spring piece 120 will be close to the contact pin 30, and will give the contact pin 3 a force in the direction of the bottom wall 101, so that the contact pin 30 can be close to the bottom wall 101, ensuring that the contact pin 30 will not move randomly in the up and down directions in the main body 10.

[0050] In one embodiment, Figure 2 As shown, the front limiting spring sheet 119 is provided with a first front guide portion 121 for guiding the insertion of the contact pin 30. The first front guide portion 121 is located on the front limiting spring sheet 119 and is an inclined surface structure gradually extending from the insertion direction of the contact pin 30 toward the bottom wall 101, for guiding the insertion of the contact pin 30.

[0051] In one embodiment, Figure 1 As shown, the front main body limiting portion 105 is provided with a second front guide portion 122, which is located on the bottom wall 101, corresponding to the first front guide portion 121, and is used to guide the insertion of the contact pin 30. The second front guide portion 121 is located on the bottom wall 101, and is an inclined surface structure gradually extending from the insertion direction of the contact pin 30 toward the top wall 104, and is used to guide the insertion of the contact pin 30 with the first front guide portion 121.

[0052] In one embodiment, Figure 2 As shown, at least one contact spring 113 is provided on the bottom wall 101, and the contact spring 113 has a contact convex bump 116, which is used to connect with the contact pin 30 to ensure electrical performance connection. The contact spring 113 is a relatively rigid simply supported structure extending from front to back, and the contact spring 113 can also be a relatively flexible cantilever structure, the contact spring 113 extends from front to back, and the relatively flexible contact spring 113 of the cantilever structure includes a contact point, which is used to contact with the contact pin to ensure electrical performance connection. In one embodiment, a relatively rigid simply supported structure contact spring 113 is located at the bottom wall 101 near the front body limiting portion 105, and another relatively rigid simply supported structure contact spring 113 is located at the bottom wall 101 near the rear body limiting portion 106, and the relatively flexible cantilever structure contact spring 113 is located in the middle of the above two relatively rigid simply supported structure contact springs 113 of the bottom wall 101.

[0053] In one embodiment, Figure 1 As shown, a limiting hole 108 is provided on one of the side walls 102 .

[0054] In one embodiment, Figure 1 As shown, the top wall 104 is provided with a limiting spur 109, which is used to cooperate with the limiting hole 108 to position the top wall 104. This prevents the top wall 104 from being excessively offset during manufacturing and use, and ensures that the main body 10 forms a square structure.

[0055] In one embodiment, the contact pin 30 includes: a contact limiting portion, which is used to contact the main body to limit the movement of the contact pin 30 in the main body 10. The contact pin 30 is stamped from a metal material, preferably copper / copper alloy. The contact pin 30 also includes a contact matching portion 301 and a front contact guide portion 309, wherein the contact matching portion 301 is used to match with a female terminal (not shown) to form an electrical connection; the front contact guide portion 309 is used to prevent the contact pin 30 from interfering with the female terminal when inserted into the female terminal, and plays a guiding role.

[0056] In one embodiment, the contact limiting portion includes: a front contact limiting portion 302, which is a protrusion on the contact pin 30, and the protrusion passes through the through hole of the front main body limiting portion 302; a rear contact limiting portion 303, which is a protrusion on the contact pin 30, and the protrusion passes through the through hole of the rear main body limiting portion 303; and a middle contact limiting portion 304, which is arranged in the middle of the front contact limiting portion 302 and the rear contact limiting portion 304, and cooperates with the side wall 102.

[0057] In one embodiment, the rear contact limiting portion 303 includes: a rear guide portion 306, which is located at the tail of the contact pin 30 and is used to prevent the contact pin 30 from interfering with the main body 10 when inserted into the main body 10, and has a guiding function.

[0058] In one embodiment, Fig.10 As shown, the outer surface of the rear contact limiting portion 303 is lower than the outer surface of the main body 10. This allows the contact pin 30 to be inserted into the main body 10 more smoothly, that is, the distance j from the rear contact limiting portion 303 to the outside of the main body 10 is less than or equal to the thickness of the main body 10.

[0059] In one embodiment, Fig. 9 As shown, the structure of the middle contact limiting portion 304 is approximately arc-shaped to reduce the friction between the contact pin 30 and the side wall 102 when the contact pin 30 is inserted into the body 10. This can make the insertion of the contact pin 30 smoother and avoid scratches and interference between the middle contact limiting portion 304 and the side wall 102.

[0060] Although example embodiments have been described herein with reference to the accompanying drawings, it should be understood that the above example embodiments are merely exemplary and are not intended to limit the scope of the present application to this. Those of ordinary skill in the art may make various changes and modifications therein without departing from the scope and spirit of the present application. All these changes and modifications are intended to be included within the scope of the present application as required by the appended claims.

[0061] In the description provided herein, a large number of specific details are described. However, it is understood that the embodiments of the present application can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this description.

[0062] Similarly, it should be understood that in order to streamline the present application and help understand one or more of the various utility model aspects, in the description of the exemplary embodiments of the present application, the various features of the present application are sometimes grouped together into a single embodiment, figure, or description thereof. However, the method of the present application should not be interpreted as reflecting the following intention: the claimed application requires more features than the features explicitly stated in each claim. More specifically, as reflected in the corresponding claims, the inventive point is that the corresponding technical problem can be solved with features that are less than all the features of a single disclosed embodiment. Therefore, the claims following the specific embodiment are hereby explicitly incorporated into the specific embodiment, wherein each claim itself serves as a separate embodiment of the present application.

[0063] It will be understood by those skilled in the art that, except for mutually exclusive features, all features disclosed in this specification (including the accompanying claims, abstracts and drawings) and all processes or units of any method or device disclosed in this specification may be combined in any combination. Unless otherwise expressly stated, each feature disclosed in this specification (including the accompanying claims, abstracts and drawings) may be replaced by an alternative feature that provides the same, equivalent or similar purpose.

[0064] In addition, those skilled in the art will appreciate that, although some embodiments described herein include certain features included in other embodiments but not other features, the combination of features of different embodiments is meant to be within the scope of the present application and form different embodiments. For example, in the claims, any one of the claimed embodiments can be used in any combination.

Claims

1. A contact for an electrical connector, characterized in that: include: A main body portion, wherein the main body portion is provided with a main body restriction portion; as well as A contact pin is provided with a contact limiting portion for cooperating with the main body limiting portion to achieve electrical connection.

2. A contact according to claim 1, characterized in that: Also includes: The crimping portion is connected to the main body and is used for crimping the wire.

3. A contact according to claim 1, characterized in that: The main body comprises: bottom wall; two side walls, the two side walls are formed by extending the bottom wall upward; and A top wall is formed by extending one of the side walls toward the other side wall.

4. A contact according to claim 3, characterized in that: The main body restriction portion comprises: A front main body limiting portion, the front main body limiting portion is a through hole structure, and is located at one end of the main body close to the contact pin; a middle main body limiting portion, the middle main body limiting portion being a planar structure extending from one side wall to the other side wall and being perpendicular to the two side walls, and being located in the middle of the main body portion or in an adjacent area of ​​the middle portion; and The rear body limiting portion is a through-hole structure and is located at an end of the main body away from the contact pin.

5. A contact according to claim 4, characterized in that: The front main body limiting portion is a U-shaped open through-hole structure.

6. A contact according to claim 4, characterized in that: The rear body limiting portion is a square closed through-hole structure.

7. A contact according to claim 4, characterized in that: The front main body limiting portion comprises: The front limiting spring piece is a planar structure perpendicular to the side wall formed by extending from one of the side walls toward the other side wall, and is used to limit the relative displacement between the contact pin and the main body.

8. A contact according to claim 4, characterized in that: The rear main body restriction portion comprises: The rear limiting spring piece is a planar structure approximately perpendicular to the side wall formed by extending from one of the side walls toward the other side wall, and is used to limit the relative displacement between the contact pin and the main body.

9. A contact according to claim 7, characterized in that: The front limiting spring sheet is provided with a first front guide portion for guiding the insertion of the contact pin.

10. A contact according to claim 9, characterized in that: A second front guide portion is provided on the front main body limiting portion. The second front guide portion is located on the bottom wall and corresponds to the first front guide portion, and is used to guide the insertion of the contact pin.

11. A contact according to claim 3, characterized in that: At least one contact spring is disposed on the bottom wall, and the contact spring has a contact convex bump for connecting with the contact pin to ensure electrical performance connection.

12. A contact according to claim 3, characterized in that: A limiting hole is provided on one of the side walls.

13. A contact according to claim 12, characterized in that: The top wall is provided with a limiting spur, and the limiting spur is used to cooperate with the limiting hole to position the top wall.

14. A contact according to claim 4, characterized in that: The contact pin comprises: The contact limiting portion is used to contact the main body to limit the movement of the contact pin in the main body.

15. A contact according to claim 14, characterized in that: The contact limiting portion comprises: A front contact limiting portion, wherein the front contact limiting portion is a protrusion on the contact pin, and the protrusion passes through the through hole of the front main body limiting portion; a rear contact limiting portion, the rear contact limiting portion being a protrusion on the contact pin, the protrusion passing through the through hole of the rear body limiting portion; and A middle contact limiting portion, wherein the middle contact limiting portion is disposed between the front contact limiting portion and the rear contact limiting portion and cooperates with the side wall.

16. A contact according to claim 15, characterized in that: The rear contact limiting portion comprises: The rear guide portion is located at the tail of the contact pin and is used to prevent the contact pin from interfering with the main body when being inserted into the main body.

17. A contact according to claim 15, characterized in that: An outer surface of the rear contact limiting portion is lower than an outer surface of the main body portion.

18. A contact according to claim 15, characterized in that: The structure of the middle contact limiting portion is approximately arc-shaped, so as to reduce the friction between the contact pin and the side wall when the contact pin is inserted into the main body.

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