Welding terminal structure
By designing the smooth surface of the welding terminal structure to contact the glass space, and using the matching of the insulating sheath and limit block to fix the welding end, the problem of glass breakage after welding is solved, and the yield rate and connection reliability are improved.
Patent Information
- Application Number
- CN202520720594.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-16
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2035-04-16
AI Technical Summary
When the welding terminals are in direct contact with the glass, the high temperature generated during the welding process leads to differences in expansion between the terminals and glass, and stress occurs after cooling, which can easily lead to glass rupture and reduce yield.
A welding terminal structure is designed, and the bottom of the welding end forms a smooth surface and contacts the glass spaced. The welding end is raised by an insulating sheath to avoid direct contact. The insulating sheath is fixed by the matching of the limiting block and the ring groove to ensure the reliability of the connection.
It effectively reduces the stress generated by the glass, avoids glass breakage after welding, significantly improves the yield rate, and ensures a stable connection between the insulating sheath and the welding end.
Smart Images
Figure CN222927783U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of welding terminals, and in particular to a welding terminal structure. Background Art
[0002] Terminals are currently a common connection technology in electrical and electronic engineering, used to achieve reliable electrical connections between wires and devices, circuit boards or other wires. Most vehicles on the market have windshields with heating functions to quickly remove frost or fog on the windshield. This requires conductive materials (usually thin metal wires or transparent conductive films), and these heating elements need to be connected to the vehicle's electrical system through terminals.
[0003] In the related art, the terminals on the automotive glass are usually fixed by welding. However, during the welding process, the welding surface of the terminal is in direct contact with the glass surface. The high temperature generated during the welding process will cause the terminal and the glass to expand due to heat. However, there is a difference in the expansion coefficients of the terminal and the glass. After cooling, the terminal and the glass will shrink and generate stress. The terminal is made of rigid metal material, so the stress cannot be dispersed in time, which may eventually cause the glass to crack after welding, thereby reducing the yield rate. Utility Model Content
[0004] The present application provides a welding terminal structure, which can effectively improve the situation where glass breaks after terminal welding, reduce the stress generated by the glass, and further improve the yield rate.
[0005] A welding terminal structure provided in this application adopts the following technical solution:
[0006] A welding terminal structure includes a wiring terminal and a welding terminal, wherein a smooth surface facing the glass is formed at the bottom of the welding terminal, an insulating sheath is provided on the welding terminal, a contact surface is formed at the bottom of the insulating sheath, and the contact surface exceeds the smooth surface; the contact surface is used to contact the glass surface, and the insulating sheath is used to raise the welding terminal, and when the contact surface contacts the glass surface, a gap is left between the smooth surface and the glass surface.
[0007] Preferably, a limit block is provided on the side wall of the welding end facing away from the smooth surface, and the limit blocks are symmetrically arranged on both sides of the welding end; the inner wall of the insulating sheath is provided with an annular groove for the limit block to be inserted into the insulating sheath, and the insulating sheath is arranged on the outside of the limit block through the annular groove, and the outer wall of the limit block and the inner wall of the annular groove are in contact with each other; the insulating sheath is fixed to the outside of the welding end by the mutual plug-in cooperation of the limit block and the annular groove.
[0008] Preferably, a convex edge is integrally formed on the welding end between the two limiting blocks on both sides, and a relief groove is formed between the convex edge and the inner side wall of the annular groove.
[0009] Preferably, one side of the wiring terminal is integrally formed on the welding end, and the other side of the wiring terminal extends outward to the outside of the welding end.
[0010] Preferably, a through groove is formed through the welding end, the through groove is located at the connection between the wiring terminal and the welding end, and the through groove is symmetrically arranged on both sides of the wiring terminal.
[0011] Preferably, a plurality of extension blocks are integrally formed on the circumferential outer side wall of the welding end, and the insulating sheath is sleeved outside each extension block respectively.
[0012] Preferably, a plurality of clamping claws are bent and arranged on the welding end and are circumferentially distributed around the wiring terminal, and the clamping claws are used to limit and fix the wiring terminal on the welding end.
[0013] In summary, the present application includes at least one of the following beneficial technical effects:
[0014] Since the welding end does not directly contact the glass surface, in the case of no contact points, the stress generated during welding of the welding end can be dispersed in time, greatly reducing the stress generated by the glass, effectively improving the situation that the glass breaks after welding, and greatly improving the yield rate;
[0015] The insulating sheath is fixedly wrapped outside the welding end through the mutual insertion and cooperation of the limiting block and the annular groove, ensuring the connection reliability between the insulating sheath and the welding end, and effectively preventing the insulating sheath from falling off the welding end;
[0016] For the situation where the wiring terminal and the welding end are two independent components, clamping claws are used to limit and fix the wiring terminal on the welding end, realizing the mutual connection between the wiring terminal and the welding end, and at the same time ensuring the stability and reliability when the wiring terminal and the welding end are mutually connected. Description of the Drawings
[0017] Figure 1 is the overall structural schematic diagram of the first embodiment of the present application;
[0018] Figure 2 is Figure 1 the overall structural schematic diagram from the bottom view;
[0019] Figure 3 is Figure 1 the partial structural explosion schematic diagram of;
[0020] Figure 4 is the overall structural schematic diagram of the second embodiment of the present application;
[0021] Figure 5Yes Figure 4 Explosion schematic diagram of the local structure
[0022] Figure 6 Yes Figure 5 Explosion schematic diagram of the local structure from the bottom view
[0023] Explanation of reference numerals: 1, terminal; 2, welding end; 20, smooth surface; 21, convex edge; 22, relief groove; 23, through groove; 3, insulating sheath; 30, contact surface; 31, annular groove; 4, limiting block; 5, extension block; 50, limiting groove; 6, clamping jaw Detailed implementation manners
[0024] The following further describes the present application in detail with reference to the accompanying drawings
[0025] The embodiment of the present application discloses a welding terminal structure
[0026] Embodiment 1: Refer to Figure 1 、 Figure 2 , the welding terminal structure includes a terminal 1 and a welding end 2 made of a metal conductive material. One side of the terminal 1 is integrally formed on the welding end 2, and the other side of the terminal 1 extends outward to the outside of the welding end 2. The terminal 1 is used for crimping or welding and fixing with an electric wire, and the welding end 2 is used for welding and fixing itself on the glass. Two through grooves 23 are provided on the welding end 2. The through grooves 23 penetrate the welding end 2 in the thickness direction. The through grooves 23 are located at the connection between the terminal 1 and the welding end 2, and the through grooves 23 are symmetrically arranged on both sides of the terminal 1. The setting of the through grooves 23 facilitates the smooth bending of the connection between the terminal 1 and the welding end 2
[0027] As Figure 2 、 Figure 3 shown, a smooth surface 20 for facing the glass surface is formed at the bottom of the welding end 2. The shape of the welding end 2 is generally circular. An insulating sheath 3 made of a non-metallic material is sleeved outside the welding end 2. Specifically, the insulating sheath 3 can be made of rubber with a certain elastic deformation ability. A contact surface 30 is formed on the outer bottom wall of the insulating sheath 3, and the contact surface 30 extends beyond the smooth surface 20. The contact surface 30 is used for contacting the glass surface. When the contact surface 30 is placed on the glass surface, under the support of the insulating sheath 3, the welding end 2 will maintain a raised state, and at this time, there will be a certain gap between the smooth surface 20 and the glass surface
[0028] Since the welding end 2 does not directly contact the glass surface, in the absence of a contact point, the stress generated during the welding of the welding end 2 can be dispersed in time, greatly reducing the stress generated by the glass, effectively improving the situation where the glass breaks after welding, and greatly improving the yield rate
[0029] As Figure 2 、Figure 3 As shown, two limiting blocks 4 are integrally formed on the side wall of the welding end 2 facing away from the smooth surface 20. The limiting blocks 4 are symmetrically arranged on both sides of the welding end 2. A ring groove 31 for inserting the limiting block 4 into the insulating sheath 3 is provided on the inner side wall of the insulating sheath 3. The insulating sheath 3 is sleeved outside the limiting block 4 through the ring groove 31, and the outer side wall of the limiting block 4 is in mutual fit with the inner side wall of the ring groove 31. The insulating sheath 3 is fixedly wrapped outside the welding end 2 through the mutual insertion and cooperation of the limiting block 4 and the ring groove 31.
[0030] As Figure 2 、 Figure 3 shown, a convex edge 21 located between the two limiting blocks 4 on both sides is integrally formed on the welding end 2. The limiting block 4 protrudes from the surface of the convex edge 21. A relief groove 22 is formed between the convex edge 21 and the inner side wall of the ring groove 31, which facilitates the smooth peeling of the insulating sheath 3 from the welding end 2 through the relief groove 22.
[0031] Example two: Referring to Figure 4 、 Figure 5 and Figure 6 , different from the structure of the first embodiment: a plurality of extension blocks 5 are integrally formed on the circumferential outer side wall of the welding end 2. In this embodiment, the number of extension blocks 5 is three, and the three extension blocks 5 are circumferentially and evenly spaced. A limiting groove 50 is provided on the extension block 5. The insulating sheath 3 is respectively sleeved outside the limiting grooves 50 of each extension block 5. The limiting groove 50 is used to limit the insulating sheath 3 from detaching from its respective extension block 5. When the insulating sheath 3 is pulled by an external force, it is not easy to fall off from the extension block 5. By using the insulating sheath 3 to elevate each extension block 5, the smooth surface 20 at the bottom of the welding end 2 is separated from the glass surface.
[0032] As Figure 5 、 Figure 6 shown, the wiring end 1 and the welding end 2 are two independent components. A plurality of clamping claws 6 are bent and arranged on the circumferential outer side wall of the welding end 2. The clamping claws 6 are circumferentially and evenly spaced around the wiring end 1. The bottom wall of the wiring end 1 is in mutual fit with the upper surface of the welding end 2. The clamping claws 6 located around the wiring end 1 are used to limit and fix the wiring end 1 on the welding end 2. By using the clamping claws 6 to limit and fix the wiring end 1 on the welding end 2, the mutual connection between the wiring end 1 and the welding end 2 is realized, and at the same time, the stability and reliability during the mutual connection between the wiring end 1 and the welding end 2 are ensured.
[0033] The implementation principle is: Since the welding end 2 does not directly contact the glass surface, in the case of no contact points, the stress generated during the welding of the welding end 2 can be dispersed in time, greatly reducing the stress generated by the glass, effectively improving the situation of glass cracking after welding, and greatly improving the yield rate.
[0034] In the solution of the first embodiment, the insulating sheath 3 is fixedly wrapped outside the welding end 2 through the mutual plug-in fit of the limiting block 4 and the annular groove 31, ensuring the connection reliability between the insulating sheath 3 and the welding end 2 and effectively preventing the insulating sheath 3 from falling off the welding end 2.
[0035] In the solution of the second embodiment, for the case where the wiring terminal 1 and the welding end 2 are two independent components, the clamping jaws 6 are used to limit and fix the wiring terminal 1 on the welding end 2, ensuring the stability and reliability when the wiring terminal 1 and the welding end 2 are connected to each other.
[0036] The above are all the preferred embodiments of the present application. The protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.
Claims
1. A welding terminal structure, characterized in that: The invention comprises a connection terminal (1) and a welding terminal (2); a smooth surface (20) facing the glass is formed at the bottom of the welding terminal (2); an insulating sheath (3) is provided on the welding terminal (2); a contact surface (30) is formed at the bottom of the insulating sheath (3); the contact surface (30) protrudes from the smooth surface (20); the contact surface (30) is used to contact the glass surface; and the insulating sheath (3) is used to raise the welding terminal (2); when the contact surface (30) contacts the glass surface, a gap is left between the smooth surface (20) and the glass surface.
2. The welding terminal structure according to claim 1, characterized in that: A limit block (4) is arranged on the side wall of the welding end (2) facing away from the smooth surface (20), and the limit blocks (4) are symmetrically arranged on both sides of the welding end (2); the inner side wall of the insulating sheath (3) is provided with an annular groove (31) for inserting the limit block (4) into the insulating sheath (3); the insulating sheath (3) is sleeved on the outside of the limit block (4) through the annular groove (31), and the outer side wall of the limit block (4) and the inner side wall of the annular groove (31) are mutually fitted; the insulating sheath (3) is fixed to the outside of the welding end (2) by the mutual plug-in cooperation between the limit block (4) and the annular groove (31).
3. The welding terminal structure according to claim 2, characterized in that: The welding end (2) is integrally formed with a convex edge (21) located between the limiting blocks (4) on both sides, and a clearance groove (22) is formed between the convex edge (21) and the inner side wall of the annular groove (31).
4. The welding terminal structure according to claim 3, characterized in that: One side of the connection terminal (1) is integrally formed on the welding end (2), and the other side of the connection terminal (1) extends outward to the outside of the welding end (2).
5. The welding terminal structure according to claim 4, characterized in that: The welding end (2) is provided with a through slot (23), the through slot (23) is located at the connection between the wiring end (1) and the welding end (2), and the through slot (23) is symmetrically arranged on both sides of the wiring end (1).
6. The welding terminal structure according to claim 1, characterized in that: A plurality of extension blocks (5) are integrally formed on the circumferential outer side wall of the welding end (2), and the insulating sheath (3) is respectively sleeved outside each extension block (5).
7. The welding terminal structure according to claim 6, characterized in that: A plurality of clamping claws (6) are bent and arranged on the welding end (2) and are circumferentially distributed around the wiring end (1). The clamping claws (6) are used to positionally fix the wiring end (1) on the welding end (2).