A composite terminal

Abstract

The utility model provides a kind of composite terminal, including terminal body and fixed sleeve, the terminal body includes including welding portion, connecting portion and plug-in part, the center of the plug-in part is equipped with plug-in hole, the fixed sleeve center is equipped with the mounting through-hole passing through its front and rear ends, the plug-in part is inserted into mounting through-hole and is welded and fixed with fixed sleeve, the mounting through-hole is communicated with plug-in hole, the connecting portion and welding portion are outside fixed sleeve.The composite terminal of the application, simple structure, install quickly, cancel the part of riveting wire on the terminal body, and then adopt the structure of welding, simplify terminal appearance, thereby reduce the volume of the whole of terminal, adopt the connection mode of welding, there is no mechanical stress relaxation problem, stronger anti-vibration, anti-impact capacity, beneficial to the stable transmission of electric signal, avoid the situation of contact failure.

Description

Technical Field

[0001] This utility model relates to the field of electrical connector technology, specifically a composite terminal. Background Technology

[0002] Electrical connectors are indispensable components in electronic devices. Currently, most female connectors on the market are manufactured from a single material and are generally fixed to cables using a riveting structure, such as the conductive terminal structure disclosed in patent CN110268584B. This design has the following shortcomings: First, because of the riveting, the terminal, in addition to its functional area, needs to be lengthened to accommodate the riveting feet, resulting in an increased overall product height and higher manufacturing costs due to the complex structure. Second, although it can maintain basic performance in non-core areas where automotive vibration intensity is relatively low, it is prone to poor contact in critical areas under high-frequency, high-vibration environments (such as engine compartments, chassis transmission systems, and other high-frequency vibration areas) due to insufficient structural stability, directly affecting the stability of signal transmission. Utility Model Content

[0003] The purpose of this invention is to provide a composite terminal to solve the technical problems in the background art.

[0004] To achieve the aforementioned objectives, this utility model provides the following technical solution:

[0005] A composite terminal includes a terminal body and a fixing sleeve. The terminal body includes a welding part, a connecting part, and a plug-in part. The plug-in part has a plug-in hole at its center. The fixing sleeve has a mounting through hole at its center that extends through both its front and rear ends. The plug-in part is inserted into the mounting through hole and welded to the fixing sleeve. The mounting through hole is connected to the plug-in hole. The connecting part and the welding part are located on the outside of the fixing sleeve.

[0006] Both the connecting part and the welding part are sheet-like structures. The welding part is arranged along the longitudinal direction, and the connecting part is vertically connected to one side of the welding part to connect the welding part to the insertion part.

[0007] The plug-in part includes a plug-in body, which has a first positioning hole extending through its front and rear ends. The longitudinal section of the plug-in hole is rectangular. Two elastic pressure arms extend outward from the outer side of the plug-in body, namely a first elastic pressure arm and a second elastic pressure arm. The first elastic pressure arm and the second elastic pressure arm have the same structure and are symmetrically arranged diagonally along the plug-in hole. One end of the first elastic pressure arm is fixedly connected to the plug-in body, and the other end is suspended at a diagonal position above the second elastic pressure arm. The distance between the first elastic pressure arm and the second elastic pressure arm forms a second positioning hole. The second positioning hole communicates with the first positioning hole to form the plug-in hole.

[0008] The first elastic pressure arm includes a first connecting arm and a first contact arm. The longitudinal section of the first connecting arm is an inverted L-shaped structure. The first connecting arm bends toward the second elastic pressure arm. The transverse section of the first contact arm is a trumpet-shaped structure. The size of the internal opening of the first contact arm gradually increases with the direction away from the first connecting arm. At the junction of the inner sidewall of the first contact arm and the inner sidewall of the first connecting arm, there is a connecting part with an arc transition structure, which is the first arc part. The first arc part protrudes toward the second elastic pressure arm and contacts the pin inserted into the insertion hole.

[0009] The fixing sleeve includes a rectangular fixing body, the mounting through hole is rectangular and extends through both ends of the fixing body, the fixing body has a first opening at the top, the first opening communicates with the mounting through hole, the first opening has an outwardly bent spring piece inside the first opening, one end of the spring piece is fixed to one side of the first opening, and the other end is suspended above the first opening.

[0010] A baffle extends upward from one side above the fixed body, the baffle being perpendicular to the side above the fixed body, and the length of the baffle being the same as the length of the fixed body.

[0011] The fixed body is also provided with a second opening, which is in front of the first opening and communicates with the mounting through hole. The plug-in body is provided with a third opening that matches and communicates with the second opening. The third opening communicates with the first positioning hole. The left and right sides of the second opening are respectively provided with claws bent towards the third opening to clamp and install the plug-in part of the terminal body.

[0012] The right side of the fixed body has an opening with elastic pressure plates along the four sides of the mounting through hole. The four elastic pressure plates extend toward the center of the mounting through hole to form a rectangular elastic limiting hole, which communicates with the first mounting through hole.

[0013] Both the terminal body and the fixing sleeve are integrally bent and formed structures.

[0014] Compared with existing technologies, the composite terminal of this application has a simple structure and quick installation. The riveting part is eliminated from the terminal body, and a welding structure is adopted, which simplifies the shape of the terminal and reduces the overall volume of the terminal. The welding connection method eliminates the problem of mechanical stress relaxation, and has stronger resistance to vibration and impact, which is conducive to the stable transmission of electrical signals and avoids poor contact. In addition, a fixing sleeve is welded to the outside of the terminal body in this application. The enclosed structure effectively absorbs external vibration energy, increases the holding force and reliability of the terminal during vibration, and ensures the stability of signal transmission. Attached Figure Description

[0015] Figure 1 : A three-dimensional structural schematic diagram of this application;

[0016] Figure 2 : Three-dimensional structural diagram of the terminal body;

[0017] Figure 3 : Right view of the terminal body;

[0018] Figure 4 : First elastic pressure arm main view;

[0019] Figure 5 : Fixed sleeve 3D structure diagram;

[0020] Figure 6 : Three-dimensional structural diagram of the fixed sleeve from another direction;

[0021] Figure 7 : Right view of the fixed sleeve;

[0022] Figure 8 This application includes a front view showing the connector installation effect.

[0023] Figure 9 This application includes an internal structural diagram of the connector installation. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0025] Specific Implementation Example 1: Please refer to Figures 1 to 9 In this embodiment of the utility model, a composite terminal includes a terminal body 1 and a fixing sleeve 5. Both the terminal body 1 and the fixing sleeve 5 are integrally bent and formed structures. The fixing sleeve 5 is made of stainless steel, and the terminal body 1 is made of copper or copper alloy.

[0026] In this application, the terminal body 1 includes a welding part 2, a connecting part 3 and a plug-in part 4. The plug-in part 4 has a plug-in hole 404 at its center. The fixing sleeve 5 has a mounting through hole 603 at its center that extends through both its front and rear ends. The plug-in part 4 is inserted into the mounting through hole 603 and welded to the fixing sleeve 5. The mounting through hole 603 is connected to the plug-in hole 404. The connecting part 3 and the welding part 2 are on the outside of the fixing sleeve 5.

[0027] Both the connecting part 3 and the welding part 2 are sheet structures. The welding part 2 is a rectangular sheet structure and is arranged along the longitudinal direction. The connecting part 3 is vertically connected to one side of the center position of the welding part 2 to connect the welding part 2 with the insertion part 4.

[0028] The insertion part 4 includes an insertion body 401. The insertion body 401 has a first positioning hole that runs through its front and rear ends. The longitudinal section of the insertion hole 404 is rectangular. Two elastic pressure arms extend outward from the outer side of the insertion body 401, namely a first elastic pressure arm 402 and a second elastic pressure arm 403. The first elastic pressure arm 402 and the second elastic pressure arm 403 have the same structure and are symmetrically arranged diagonally along the insertion hole 404. One end of the first elastic pressure arm 402 is fixedly connected to the insertion body 401, and the other end is suspended at a diagonal position above the second elastic pressure arm 403. The distance between the first elastic pressure arm 402 and the second elastic pressure arm 403 forms a second positioning hole. The second positioning hole communicates with the first positioning hole to form the insertion hole 404.

[0029] The first elastic pressure arm 402 includes a first connecting arm 402-1 and a first contact arm 402-2. The longitudinal section of the first connecting arm 402-1 is an inverted L-shaped structure. The first connecting arm 402-1 is bent towards the second elastic pressure arm 403. The transverse section of the first contact arm 402-2 is a trumpet-shaped structure. The size of the internal opening of the first contact arm 402-2 gradually increases as it moves away from the first connecting arm 402-1. At the junction of the inner wall of the first contact arm 402-2 and the inner wall of the first connecting arm 402-1, there is a connecting part 3 with an arc transition structure, which is the first arc part 402-3. The first arc part 402-3 protrudes towards the second elastic pressure arm 403 and contacts the pin inserted into the insertion hole 404.

[0030] The fixing sleeve 5 includes a rectangular fixing body 6. The mounting through hole 603 is rectangular and extends through both ends of the fixing body 6. A first opening 601 is provided on the top of the fixing body 6. The first opening 601 communicates with the mounting through hole 603. An outwardly bent spring piece 8 is provided in the first opening 601. One end of the spring piece 8 is fixed to one side of the first opening 601, and the other end is suspended above the first opening 601. The spring piece 8 can fix the terminal to the insulating body of the connector 11 and prevent it from falling off.

[0031] A baffle 7 extends upward from one side above the fixed body 6. The baffle 7 has a rectangular structure and is perpendicular to the side above the fixed body 6. The length of the baffle 7 is the same as the length of the fixed body 6. The square upright baffle 7 design can effectively prevent mistakes, facilitate bending, and also provide support when welding composite terminals, making it convenient for spot welding machines to spot weld.

[0032] The fixed body 6 is also provided with a second opening 602, which is in front of the first opening 601 and communicates with the mounting through hole 603. The plug-in body 401 is provided with a third opening 401-1, which matches and communicates with the second opening 602. The third opening 401-1 communicates with the first positioning hole. On the left and right sides of the second opening 602, there are claws 10 bent towards the third opening 401-1 to clamp and install the plug-in part 4 of the terminal body 1. After the claws 10 are bent, they are clamped on the side wall of the third opening 401-1, thereby positioning and installing the fixed body 6 and the plug-in body 401.

[0033] On the right side of the fixed body 6, elastic pressure plates 9 are provided along the four sides of the mounting through hole 603. The four elastic pressure plates 9 extend towards the center of the mounting through hole 603 to form a rectangular elastic limiting hole. The elastic limiting hole communicates with the first mounting through hole 603. The elastic deformation of the rectangular claw 10 of the elastic limiting hole can precisely control the contact area with the pin and prevent the pin from loosening due to rigid collision, which significantly improves the reliability of the connection in high-frequency vibration environments such as automobiles and aviation.

[0034] Compared with existing technologies, the composite terminal of this application has a simple structure and quick installation. The riveting part is eliminated from the terminal body, and a welding structure is adopted, which simplifies the shape of the terminal and reduces the overall volume of the terminal. The welding connection method eliminates the problem of mechanical stress relaxation, and has stronger resistance to vibration and impact, which is conducive to the stable transmission of electrical signals and avoids poor contact. In addition, a fixing sleeve is welded to the outside of the terminal body in this application. The enclosed structure effectively absorbs external vibration energy, increases the holding force and reliability of the terminal during vibration, and ensures the stability of signal transmission.

[0035] It will be apparent to those skilled in the art that this invention is not limited to the details of the foregoing exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0036] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A composite terminal, characterized in that: The device includes a terminal body and a fixing sleeve. The terminal body includes a welding part, a connecting part, and a plug-in part. The plug-in part has a plug-in hole at its center. The fixing sleeve has a mounting through hole at its center that extends through both its front and rear ends. The plug-in part is inserted into the mounting through hole and welded to the fixing sleeve. The mounting through hole is connected to the plug-in hole. The connecting part and the welding part are located on the outside of the fixing sleeve.

2. A composite terminal according to claim 1, characterized in that: Both the connecting part and the welding part are sheet-like structures. The welding part is arranged along the longitudinal direction, and the connecting part is vertically connected to one side of the welding part to connect the welding part to the insertion part.

3. A composite terminal according to claim 2, characterized in that: The plug-in part includes a plug-in body, which has a first positioning hole extending through its front and rear ends. The longitudinal section of the plug-in hole is rectangular. Two elastic pressure arms extend outward from the outer side of the plug-in body, namely a first elastic pressure arm and a second elastic pressure arm. The first elastic pressure arm and the second elastic pressure arm have the same structure and are symmetrically arranged diagonally along the plug-in hole. One end of the first elastic pressure arm is fixedly connected to the plug-in body, and the other end is suspended at a diagonal position above the second elastic pressure arm. The distance between the first elastic pressure arm and the second elastic pressure arm forms a second positioning hole. The second positioning hole communicates with the first positioning hole to form the plug-in hole.

4. A composite terminal according to claim 3, characterized in that: The first elastic pressure arm includes a first connecting arm and a first contact arm. The longitudinal section of the first connecting arm is an inverted L-shaped structure. The first connecting arm bends toward the second elastic pressure arm. The transverse section of the first contact arm is a trumpet-shaped structure. The size of the internal opening of the first contact arm gradually increases with the direction away from the first connecting arm. At the junction of the inner sidewall of the first contact arm and the inner sidewall of the first connecting arm, there is a connecting part with an arc transition structure, which is the first arc part. The first arc part protrudes toward the second elastic pressure arm and contacts the pin inserted into the insertion hole.

5. A composite terminal according to any one of claims 3 and 4, characterized in that: The fixing sleeve includes a rectangular fixing body, the mounting through hole is rectangular and extends through both ends of the fixing body, the fixing body has a first opening at the top, the first opening communicates with the mounting through hole, the first opening has an outwardly bent spring piece inside the first opening, one end of the spring piece is fixed to one side of the first opening, and the other end is suspended above the first opening.

6. A composite terminal according to claim 5, characterized in that: A baffle extends upward from one side above the fixed body, the baffle being perpendicular to the side above the fixed body, and the length of the baffle being the same as the length of the fixed body.

7. A composite terminal according to claim 6, characterized in that: The fixed body is also provided with a second opening, which is in front of the first opening and communicates with the mounting through hole. The plug-in body is provided with a third opening that matches and communicates with the second opening. The third opening communicates with the first positioning hole. The left and right sides of the second opening are respectively provided with claws bent towards the third opening to clamp and install the plug-in part of the terminal body.

8. A composite terminal according to claim 7, characterized in that: The right side of the fixed body has an opening with elastic pressure plates along the four sides of the mounting through hole. The four elastic pressure plates extend toward the center of the mounting through hole to form a rectangular elastic limiting hole, which communicates with the first mounting through hole.

9. A composite terminal according to claim 8, characterized in that: Both the terminal body and the fixing sleeve are integrally bent and formed structures.

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