Welding terminal

Abstract

The utility model relates to a welding terminal which comprises a current-conducting plate, a mounting surface facing glass is formed on one side of the current-conducting plate, an insulating sheath is arranged on the mounting surface, a supporting surface is arranged on the side wall, away from the current-conducting plate, of the insulating sheath, the supporting surface exceeds the mounting surface, and the supporting surface is used for being in contact with the surface of the glass. The insulating sheath is provided with a connecting piece, and the insulating sheath is fixedly arranged on the conductive plate through the connecting piece. Compared with the prior art, the conductive plate does not directly contact with the glass after welding, stress generated by the welding terminal and the glass can be dispersed in time under the condition that no contact point exists and no supporting point exists, and therefore the situation that the glass is broken after being welded can be improved, and the yield is improved.

Description

Technical Field

[0001] This application relates to the technical field of terminals, and in particular to a welding terminal. Background Art

[0002] At present, terminals are common connection technologies in electrical and electronic engineering, used to achieve reliable electrical connections between wires and devices, circuit boards, or other wires. Most vehicle windshields on the market have a heating function, aiming to quickly remove frost or fog on the windshield. This requires the use of conductive materials (usually fine metal wires or transparent conductive films), and these heating elements need to be connected to the vehicle's electrical system through terminals.

[0003] In related technologies, terminals on automotive glass are usually fixed by welding. However, during the welding process, the welding surface of the terminal directly contacts the glass surface. The high temperature generated during welding will cause the terminal and the glass to expand due to heat. Since there are differences in the expansion coefficients of the terminal and the glass, after cooling, the terminal and the glass will shrink and generate stress. And the terminal is made of a rigid metal material, so the stress cannot be dispersed in time, and ultimately it is easy to cause the glass to crack after welding is completed, thus reducing the yield rate. Summary of the Utility Model

[0004] This application provides a welding terminal, which has a stable structure and is not likely to cause the glass to break after welding is completed, greatly improving the welding yield rate.

[0005] The welding terminal provided by this application adopts the following technical solutions:

[0006] A welding terminal includes a conductive plate. An installation surface facing the glass is formed on one side of the conductive plate. An insulating sheath is provided on the installation surface. A support surface is provided on the side wall of the insulating sheath facing away from the conductive plate. The support surface extends beyond the installation surface and is used to contact the glass surface. A connecting piece is provided on the insulating sheath, and the insulating sheath is fixedly arranged on the conductive plate through the connecting piece.

[0007] Preferably, a soldering layer is provided on the installation surface between the insulating sheaths on both sides.

[0008] Preferably, a card slot is penetrated through the conductive plate, and the card slots are symmetrically arranged at both ends of the conductive plate. The connecting piece includes a plugging column and a limiting cap. One end of the plugging column is fixedly connected to the insulating sheath, and the other end of the plugging column is fixedly connected to the limiting cap. The plugging column is inserted into the card slot, and both the limiting cap and the insulating sheath are located outside the card slot, and the maximum diameters of the limiting cap and the insulating sheath are greater than the inner diameter of the card slot.

[0009] Preferably, a limiting groove communicating with the clamping groove is provided at the end of the conductive plate, and the width of the limiting groove is smaller than the inner diameter of the clamping groove; the limiting groove is used for inserting the inserting column into the clamping groove along the length direction of the installation surface.

[0010] Preferably, chamfers are provided on the side walls of the limiting groove away from the clamping groove, and the chamfers are oppositely arranged on both sides of the limiting groove, and the chamfers are used for guiding the inserting column to be inserted into the limiting groove.

[0011] Preferably, the connecting member is a glue layer, and the insulating sheath is adhesively fixed on the installation surface through the glue layer.

[0012] Preferably, the conductive plate includes a first bent plate and a second bent plate which are folded with each other.

[0013] In summary, the present application includes at least one of the following beneficial technical effects:

[0014] Since the installation surface will not directly contact the glass after welding, in the case of no contact point, there is no support point, and the stress generated by the welding terminal and the glass will be timely dispersed in the case of no support point, so that the situation of glass cracking after welding can be improved, and the yield rate is increased;

[0015] Under the limitation of the two-sided limiting caps and the insulating sheath, the inserting column fixes the insulating sheath on the conductive plate to ensure that the insulating sheath will not fall off the conductive plate;

[0016] The insulating sheath is adhesively fixed on the installation surface through the glue layer, which can also ensure that the insulating sheath is stably and firmly fixed on the conductive plate, and the installation is more convenient. 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 the partial structural explosion schematic diagram of the second embodiment of the present application;

[0019] Figure 3 is the partial structural explosion schematic diagram of the third embodiment of the present application;

[0020] Figure 4 is the partial structural explosion schematic diagram of the fourth embodiment of the present application;

[0021] Figure 5 is the partial structural explosion schematic diagram of the fifth embodiment of the present application;

[0022] Figure 6 is the partial structural explosion schematic diagram of the sixth embodiment of the present application.

[0023] Explanation of the accompanying drawings: 1. Conductive plate; 10. Mounting surface; 100. First bending plate; 101. Solder layer; 102. Second bending plate; 2. Insulating sheath; 20. Support surface; 3. Connector; 30. Plug column; 31. Limiting cap; 4. Slot; 5. Limiting groove; 6. Chamfer; 7. Glue layer. DETAILED DESCRIPTION

[0024] The present application is further described in detail below in conjunction with the accompanying drawings.

[0025] An embodiment of the present application discloses a welding terminal.

[0026] Example 1: Reference Figure 1 The welding terminal includes a conductive plate 1, which is made of a metallic conductive material. The bottom wall of the conductive plate 1 is formed with a mounting surface 10 facing the glass. An insulating sheath 2 made of a non-metallic material is arranged on the mounting surface 10. Specifically, the insulating sheath 2 can be made of rubber with a certain elastic deformation ability.

[0027] A support surface 20 is formed on the side wall of the insulating sheath 2 facing away from the conductive plate 1, and the support surface 20 exceeds the mounting surface 10. The support surface 20 is used to contact the glass surface. The insulating sheath 2 is respectively located on both sides of the conductive plate 1. Under the support of the insulating sheaths 2 on both sides, a gap will be left between the mounting surface 10 and the glass surface. A connector 3 is provided on the insulating sheath 2, and the insulating sheath 2 is fixedly set on the conductive plate 1 through the connector 3. A solder layer 101 is fixedly set on the mounting surface 10 and is located between the insulating sheaths 2 on both sides. The solder layer 101 can be used to solder and fix the conductive plate 1 to the wire.

[0028] Since the mounting surface 10 will not directly contact the glass after welding, there will be no support point without a contact point. The stress generated by the welding terminal and the glass will be dispersed in time without a support point, thereby improving the possibility of glass breakage after welding and improving the yield rate.

[0029] Embodiment 2: Figure 2 As shown, different from the structure of the first embodiment, there are two slots 4 passing through the conductive plate 1, and the slots 4 are symmetrically arranged at the left and right ends of the conductive plate 1. The connector 3 includes a plug-in column 30 and a limiting cap 31 which are coaxially fixed. One end of the plug-in column 30 is coaxially fixedly connected to the insulating sleeve 2, and the other end of the plug-in column 30 is connected and fixed to the limiting cap 31. The plug-in column 30 is inserted into the slot 4, and the limiting cap 31 and the insulating sleeve 2 are both located outside the slot 4, and the maximum diameter of the limiting cap 31 and the insulating sleeve 2 is greater than the inner diameter of the slot 4. Under the limitation of the limiting caps 31 and the insulating sleeve 2 on both sides, the plug-in column 30 fixes the insulating sleeve 2 on the conductive plate 1 to ensure that the insulating sleeve 2 will not fall off the conductive plate 1.

[0030] Example 3: As Figure 3 shown, different from the structure of Example 2, a limiting groove 5 communicating with the clamping groove 4 is provided at the end of the conductive plate 1, and the width of the limiting groove 5 is smaller than the inner diameter of the clamping groove 4. The limiting groove 5 is used for the insertion column 30 to be inserted into the clamping groove 4 from the side of the conductive plate 1 along the length direction of the mounting surface 10, facilitating the installation of the insulating sheath 2. When the insertion column 30 is pressed into the limiting groove 5, the insertion column 30 will be in interference fit with the limiting groove 5. By continuously applying an external force to the insertion column 30, the insertion column 30 will pass through the limiting groove 5 and finally be clamped in the clamping groove 4.

[0031] As Figure 3 shown, chamfers 6 are provided on the side wall of the limiting groove 5 away from the clamping groove 4. The chamfers 6 are oppositely arranged on the front and rear sides of the limiting groove 5, and the chamfers 6 are used to guide the insertion column 30 into the limiting groove 5.

[0032] Example 4: As Figure 4 shown, different from the structure of Example 2, the conductive plate 1 includes a first bent plate 100 and a second bent plate 102 which are folded with each other. The first bent plate 100 and the second bent plate 102 are formed by stamping a section of metal plate or strip.

[0033] Example 5: As Figure 5 shown, different from the structure of Example 3, the conductive plate 1 includes a first bent plate 100 and a second bent plate 102 which are folded with each other. The first bent plate 100 and the second bent plate 102 are formed by stamping a section of metal plate or strip.

[0034] Example 6: As Figure 6 shown, different from the structure of Example 1, the conductive plate 1 includes a first bent plate 100 and a second bent plate 102 which are folded with each other. The first bent plate 100 and the second bent plate 102 are formed by stamping a section of metal plate or strip. The connecting member 3 is an adhesive layer 7, and the insulating sheath 2 is adhesively fixed on the mounting surface 10 through the adhesive layer 7, which can also ensure that the insulating sheath 2 is stably and firmly fixed on the conductive plate 1, making the installation more convenient.

[0035] The implementation principle is: Since the mounting surface 10 will not directly contact the glass after welding, in the case of no contact point, there is no support point. The stress generated by the welding terminal and the glass will be timely dispersed in the case of no support point, so that the situation of glass cracking after welding can be improved, and the yield rate is increased.

[0036] Under the limitation of the two-sided limiting caps 31 and the insulating sheath 2, the insertion column 30 fixes and installs the insulating sheath 2 on the conductive plate 1 to ensure that the insulating sheath 2 will not fall off the conductive plate 1.

[0037] The limiting groove 5 is used for the insertion post 30 to be inserted into the card slot 4 from the side of the conductive plate 1 along the length direction of the mounting surface 10, which facilitates the installation of the insulating sheath 2. When the insertion post 30 is pressed into the limiting groove 5, the insertion post 30 will be in interference fit with the limiting groove 5. By continuously applying an external force to the insertion post 30, the insertion post 30 will pass through the limiting groove 5 and finally be snap-fitted into the card slot 4.

[0038] The insulating sheath 2 is adhesively fixed on the mounting surface 10 through the glue layer 7, which can also ensure that the insulating sheath 2 is stably and firmly fixed on the conductive plate 1, and the installation is more convenient.

[0039] The above are all the preferred embodiments of the present application. The protection scope of the present application is not limited by this. 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, comprising a conductive plate (1), characterized in that: A mounting surface (10) facing the glass is formed on one side of the conductive plate (1); an insulating sheath (2) is arranged on the mounting surface (10); a supporting surface (20) is arranged on the side wall of the insulating sheath (2) facing away from the conductive plate (1); the supporting surface (20) protrudes beyond the mounting surface (10); and the supporting surface (20) is used to contact the glass surface; a connecting piece (3) is arranged on the insulating sheath (2); and the insulating sheath (2) is fixedly arranged on the conductive plate (1) via the connecting piece (3).

2. The welding terminal according to claim 1, characterized in that: The mounting surface (10) is provided with a solder layer (101) located between the insulating sheaths (2) on both sides.

3. The welding terminal according to claim 2, characterized in that: The conductive plate (1) is provided with a slot (4) extending therethrough, and the slots (4) are symmetrically arranged at both ends of the conductive plate (1); the connector (3) comprises a plug-in column (30) and a limiting cap (31); one end of the plug-in column (30) is connected and fixed to the insulating sheath (2), and the other end of the plug-in column (30) is connected and fixed to the limiting cap (31); the plug-in column (30) is inserted into the slot (4), the limiting cap (31) and the insulating sheath (2) are both located outside the slot (4), and the maximum diameters of the limiting cap (31) and the insulating sheath (2) are greater than the inner diameter of the slot (4).

4. The welding terminal according to claim 3, characterized in that: The end of the conductive plate (1) is provided with a limiting groove (5) which is in communication with the card slot (4); the width of the limiting groove (5) is smaller than the inner diameter of the card slot (4); the limiting groove (5) is used for allowing the plug-in column (30) to be inserted into the card slot (4) along the length direction of the mounting surface (10).

5. The welding terminal according to claim 4, characterized in that: A chamfer (6) is provided on the side wall of the limiting groove (5) away from the clamping groove (4), and the chamfer (6) is arranged on both sides of the limiting groove (5) in a relative manner. The chamfer (6) is used to guide the plug-in column (30) to be inserted into the limiting groove (5).

6. The welding terminal according to claim 2, characterized in that: The connecting piece (3) is a glue layer (7); the insulating sheath (2) is glued and fixed on the mounting surface (10) by the glue layer (7).

7. The welding terminal according to claim 3, 5 or 6, characterized in that: The conductive plate (1) comprises a first bent plate (100) and a second bent plate (102) which are folded together.

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