Gold-plated material belt for welding terminal

Abstract

The utility model discloses a welding terminal gold plating material belt, which relates to the technical field of terminal material belts and comprises a belt body, a plurality of positioning holes are arranged on two sides of the belt body at equal intervals, separation columns are fixedly connected between the positioning holes on the two sides, two terminal units are fixedly connected between the two separation columns, and the terminal units are positioned between the two positioning holes. The two terminal units are symmetrically distributed, and each terminal unit comprises three terminal bases. According to the utility model, the terminal units are symmetrically arranged between the separation columns, so that the internal structure of the belt body is compactly provided with a plurality of terminal units, the low-cost stamping processing of the terminal units is facilitated, and the gold-plated layers of the terminal units are arranged in a concentrated manner, so that the cost is reduced, and the production efficiency is improved. Therefore, a user can accurately carry out nickel bottom gold plating treatment on a specified position, the waste of materials is reduced, the processing cost is greatly reduced, the corrosion-resistant effect and the conductivity of the terminal are ensured, and the processing quality of the terminal unit is ensured.

Description

Technical Field

[0001] This utility model relates to the field of terminal strip technology, and in particular to a gold-plated strip for welding terminals. Background Technology

[0002] To achieve highly efficient automation in the production, subsequent electroplating, and assembly of conductive terminals, the manufacturing of electrical connectors typically utilizes metal strips. Conductive terminals and connecting strips are stamped out using a continuous stamping die, forming intermediate products. The conveying and positioning functions of the strips then facilitate automated electroplating and assembly. Electroplating is the process of depositing a thin layer of another metal or alloy onto the surface of certain metals using electrolysis. This primarily aims to improve the metal's wear resistance, conductivity, reflectivity, corrosion resistance, and aesthetics. Currently, when gold-plating soldered terminals, the entire strip is electroplated before the terminal is removed. This results in material waste on the surface of the connecting strip, increases production costs, and prevents precise gold plating of the terminal contact areas. Utility Model Content

[0003] This invention provides a gold-plated strip for welding terminals, which solves the problems in the background art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A gold-plated strip for welding terminals includes a strip body with multiple positioning holes equidistantly opened on both sides of the strip body. A partition post is fixedly connected between the positioning holes on both sides, and two terminal units are fixedly connected between the two partition posts. The terminal units are located between the two positioning holes and are symmetrically distributed.

[0006] The terminal unit includes three terminal bases, each of which has a first process hole inside, and one end of each of the three terminal bases is fixedly connected to a terminal foot, the terminal foot having a through hole inside.

[0007] The terminal base is fixedly connected to a retaining part at the end away from the terminal foot, and the front and back surfaces of the three retaining parts are all provided with a nickel-plated gold layer.

[0008] As a further description of the above technical solution:

[0009] The belt has a continuous strip structure and a width of 32.00±0.1mm. The spacing between the positioning holes is 17.60±0.03mm and the diameter of the positioning holes is 2.00+0.03 / -0mm.

[0010] As a further description of the above technical solution:

[0011] The outer terminal base is provided with a second process hole, and a first retaining part is fixedly connected to the end of the outer terminal base away from the terminal foot;

[0012] The terminal base in the middle is fixedly connected to a second retaining part at one end away from the terminal foot. A third retaining part is provided below the second retaining part. The terminal base is fixedly connected to the bottom of the third retaining part, and the third retaining part and the first retaining part are respectively located on both sides of the second retaining part.

[0013] As a further description of the above technical solution:

[0014] The second retaining part has an "L" shaped structure, and a wedge-shaped part is fixedly connected to one side of the second retaining part;

[0015] The thickness of the wedge-shaped end of the wedge-shaped part is 0.10±0.05mm, and the length of the hypotenuse of the wedge-shaped part is 0.30mm.

[0016] As a further description of the above technical solution:

[0017] The third retaining part is fixedly connected to a protrusion on the side near the second retaining part;

[0018] The protrusion thickness of the protrusion is 0.30±0.1mm.

[0019] As a further description of the above technical solution:

[0020] The specific thickness of the gold plating layer is Ni 1~2μm + Au 0.5μm;

[0021] The diameter of the first process hole is 0.80 mm, and one of the first process holes is a rounded rectangle with a diameter of 0.80 mm and a length of 1.65 mm;

[0022] The diameter of the second process hole is 1.00 mm.

[0023] As a further description of the above technical solution:

[0024] The distance between the three terminal pins is 5.00±0.03mm, and the surface of the terminal pins is provided with pre-fold lines;

[0025] Each terminal pin has a connecting strip fixedly connected to its outer end, and a strap is fixedly connected to the other end of the connecting strip. The width of the connecting strip is 0.90±0.03mm.

[0026] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0027] In this invention, by symmetrically arranging terminal units between the partition columns, the internal structure of the belt can be compactly arranged with multiple terminal units, which facilitates low-cost stamping processing of the terminal units. Furthermore, by concentrating the gold plating layer of the terminal units, users can precisely perform nickel-based gold plating on designated locations, reducing material waste, greatly lowering processing costs, and ensuring the corrosion resistance and conductivity of the terminals, thus guaranteeing the processing quality of the terminal units. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of a gold-plated strip structure for welding terminals;

[0029] Figure 2 This is a schematic diagram of the structure of the terminal unit in this utility model;

[0030] Figure 3 In this utility model Figure 1 A magnified structural diagram at point A;

[0031] Figure 4 In this utility model Figure 3 A schematic diagram of the AA cross-sectional structure;

[0032] Figure 5 In this utility model Figure 4 A magnified structural diagram at point B;

[0033] Figure 6 In this utility model Figure 3 A schematic diagram of the BB cross-sectional structure.

[0034] Legend:

[0035] 1. Belt body; 2. Positioning hole; 3. Separator post; 4. Terminal unit; 41. Terminal base; 42. First process hole; 43. Second process hole; 44. First holding part; 45. Second holding part; 46. Terminal foot; 47. Through hole; 48. Third holding part; 49. Gold plating layer; 4010. Wedge-shaped part; 4011. Protrusion; 5. Connecting strip. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0037] Reference Figures 1-6A gold-plated strip for welding terminals includes a strip body 1, positioning holes 2, separators 3, terminal units 4, terminal bases 41, first process holes 42, second process holes 43, first holding portions 44, second holding portions 45, terminal feet 46, through holes 47, third holding portions 48, a gold plating layer 49, a wedge-shaped portion 4010, a protrusion 4011, and a connecting strip 5. The strip body 1 has a continuous strip structure, and the width of the strip body 1 is 32.00±0.1mm. The material of the strip body 1 is brass strip C2680R-H, with a hardness of 130-165HV and a thickness t= The diameter of the belt body 1 is 0.5±0.02mm. Meanwhile, multiple positioning holes 2 are equally spaced on both sides of the belt body 1. The spacing between the positioning holes 2 is 17.60±0.03mm, and the diameter of the positioning holes 2 is 2.00+0.03 / -0mm, which ensures the processing accuracy of the belt body 1. At the same time, a partition post 3 is fixedly connected between the positioning holes 2 on both sides. Two terminal units 4 are fixedly connected between the two partition posts 3. The terminal units 4 are located between the two positioning holes 2, and the two terminal units 4 are symmetrically distributed.

[0038] Furthermore, the terminal unit 4 includes three terminal bases 41, each of which has a first process hole 42. Specifically, the diameter of the first process hole 42 is 0.80 mm, and the first process hole 42 of one of the outer terminal bases 41 is a rounded rectangle with a diameter of 0.80 mm and a length of 1.65 mm. Terminal feet 46 are fixedly connected to one end of each of the three terminal bases 41. Pre-fold lines are provided on the surface of the terminal feet 46 to reduce the copper leakage area and ensure the quality of the terminal. Through holes 47 are provided inside the terminal feet 46 to ensure the installation effect of the terminal. The distance between the three terminal feet 46 is 5.00 ± 0.03 mm. In order to ensure the connection effect between the terminal unit 4 and the tape body 1, a connecting strip 5 is fixedly connected to the outer end of each terminal foot 46. The other end of the connecting strip 5 is fixedly connected to the tape body 1, and the width of the connecting strip 5 is 0.90 ± 0.03 mm to ensure the connection stability between the three connecting strips 5 and the tape body 1.

[0039] A second process hole 43 with a diameter of 1.00 mm is provided inside the outer terminal base 41 to ensure the stability of the terminal base 41. Simultaneously, a first retaining portion 44 is fixedly connected to the end of the outer terminal base 41 away from the terminal foot 46. A second retaining portion 45 is fixedly connected to the end of the middle terminal base 41 away from the terminal foot 46. The second retaining portion 45 has an "L"-shaped structure, and a wedge-shaped portion 4010 is fixedly connected to one side of the second retaining portion 45. Specifically, the thickness of the wedge-shaped end of the wedge-shaped portion 4010 is 0.10 ± 0.05 mm, and the length of the inclined side of the wedge-shaped portion 4010 is 0.30 mm. The wedge-shaped portion 4010 ensures the connection stamping effect and terminal quality of the central terminal base 41. Meanwhile, a third holding portion 48 is provided below the second holding portion 45. The terminal base 41 is fixedly connected to the bottom of the third holding portion 48, and the third holding portion 48 and the first holding portion 44 are respectively located on both sides of the second holding portion 45. A protrusion 4011 is fixedly connected to the side of the third holding portion 48 near the second holding portion 45. The protrusion thickness of the protrusion 4011 is 0.30±0.1mm. Under the action of the protrusion 4011, the connection requirements of the terminal are ensured, and the structure is simple, ensuring the stability of the terminal base 41.

[0040] A retaining part is fixedly connected to the end of the terminal base 41 away from the terminal foot 46. In order to achieve precise gold plating of the retaining part, a nickel-based gold plating layer 49 is provided on both the front and back surfaces of the three retaining parts. Specifically, the thickness of the gold plating layer 49 is Ni 1~2μm + Au 0.5μm. In order to ensure the overall quality of the terminal unit 4, the part of the terminal unit 4 other than the gold plating layer 49 is tin-plated. The specific thickness of the tin plating is Sn 0.5μm. Through this setting, the overall quality and working performance of the terminal unit 4 are improved, and the conductivity of the terminal is ensured by precise gold plating.

[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A gold-plated strip for welding terminals, comprising a strip body (1), characterized in that: The belt body (1) has multiple positioning holes (2) equidistantly opened on both sides. A partition column (3) is fixedly connected between the positioning holes (2) on both sides. Two terminal units (4) are fixedly connected between the two partition columns (3). The terminal units (4) are located between the two positioning holes (2) and the two terminal units (4) are symmetrically distributed. The terminal unit (4) includes three terminal bases (41), each of which has a first process hole (42) inside, and one end of each of the three terminal bases (41) is fixedly connected to a terminal foot (46), and the terminal foot (46) has a through hole (47) inside. The terminal base (41) is fixedly connected to a retaining part at one end away from the terminal foot (46), and the front and back surfaces of the three retaining parts are provided with a nickel-plated gold layer (49).

2. The gold-plated strip for welding terminals according to claim 1, characterized in that: The belt (1) has a continuous belt structure, and the width of the belt (1) is 32.00±0.1mm. The spacing between the positioning holes (2) is 17.60±0.03mm, and the diameter of the positioning holes (2) is 2.00^{+0.03}_ {0}mm.

3. The gold-plated strip for welding terminals according to claim 1, characterized in that: The outer terminal base (41) has a second process hole (43) inside, and a first retaining part (44) is fixedly connected to one end of the outer terminal base (41) away from the terminal foot (46). The terminal base (41) in the middle is fixedly connected to a second holding part (45) at one end away from the terminal foot (46). A third holding part (48) is provided below the second holding part (45). The terminal base (41) is fixedly connected to the bottom of the third holding part (48). The third holding part (48) and the first holding part (44) are located on both sides of the second holding part (45).

4. The gold-plated strip for welding terminals according to claim 3, characterized in that: The second retaining part (45) has an "L" shaped structure, and a wedge-shaped part (4010) is fixedly connected to one side of the second retaining part (45). The thickness of the wedge end of the wedge-shaped part (4010) is 0.10±0.05mm, and the length of the hypotenuse of the wedge-shaped part (4010) is 0.30mm.

5. The gold-plated strip for welding terminals according to claim 3, characterized in that: The third retaining part (48) is fixedly connected to a protrusion (4011) on the side near the second retaining part (45). The protrusion thickness of the protrusion (4011) is 0.30±0.1mm.

6. The gold-plated strip for welding terminals according to claim 3, characterized in that: The specific thickness of the gold plating layer (49) is Ni 1~2 μm + Au 0.5 μm; The diameter of the first process hole (42) is 0.80 mm, and one of the first process holes (42) is a rounded rectangle with a diameter of 0.80 mm and a length of 1.65 mm; The diameter of the second process hole (43) is 1.00 mm.

7. The gold-plated strip for welding terminals according to claim 1, characterized in that: The distance between the three terminal pins (46) is 5.00±0.03mm, and the surface of the terminal pins (46) is provided with a pre-folded line; The outer ends of the terminal pins (46) are all fixedly connected to a connecting strip (5), and the other end of the connecting strip (5) is fixedly connected to a belt (1), and the width of the connecting strip (5) is 0.90±0.03mm.

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