Watchband contact finger connector based on planar baseband

Abstract

The utility model provides a watchband contact finger connector based on a plane base band, and aims to solve the problem that the heights of riveted copper contact sheets are inconsistent due to the fact that the hardness of each part of a steel band base material of a traditional watchband contact finger connector is different and the bending angles are different during bending. The utility model mainly comprises a steel strip base material main body and a plurality of copper contact sheet assemblies which are connected in series, wherein the steel strip base material main body comprises a connecting steel strip and a plurality of connecting steel sheets which are arranged at intervals. According to the utility model, the steel base band is changed into a plane structure, the angle of the watchband is changed into a novel three-dimensional contact piece, the height difference caused by bending of the steel band is avoided, meanwhile, the stress of the stamped steel band is very small, and the steel band is not deformed after being subjected to heat treatment after being stamped and formed; and the heights of all the contact pieces are consistent, the anti-fatigue life is greatly prolonged, the stability and the reliability of the product are greatly improved, and the connector can be used for connecting linear or annular conductors.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical connection, in particular to a watchband contact finger connector based on a plane baseband. Background Art

[0002] The watchband contact finger connector is an electrical connector composed of multiple copper contacts connected in series on a steel base band. The traditional structure is to punch multiple steel strips with spaced ends at both ends of the steel strip substrate, bend these steel strips to a certain angle, and then rivet the stamped copper contacts to the steel strip at the bent part of the steel strip. The copper contacts and the middle connecting part of the steel strip form a certain angle. After the top of the contact is subjected to pressure, the steel strip at the bent part produces a cycloidal elastic deformation, so that the contact and the conductor under pressure form a stable connection. The defects of the above traditional scheme are: due to the different hardness of different parts of the steel strip substrate, there are differences in the bending angle when bending, and the rebound deformation is more serious when the steel strip is tempered, so that the height of the copper contacts after riveting is inconsistent, and the formed electrical connection contact force cannot be stable, so that the stability and safety of the electrical connection cannot be guaranteed. Utility Model Content

[0003] In response to the shortcomings of the above-mentioned prior art, the present application provides a watch strap contact connector based on a flat baseband, in which the steel baseband is converted into a flat structure, and the angle of the watch strap is changed by a newly designed three-dimensional contact piece, thereby avoiding the height difference caused by the bending of the steel belt and the large amount of stress caused by the transitional deformation of the steel belt. Compared with the original product, the assembled product has consistent heights of all contacts and greatly increased fatigue life, which greatly improves the stability and reliability of the product.

[0004] The technical solution adopted by the utility model is as follows:

[0005] A watchband contact connector based on a planar baseband comprises a steel band substrate body and a plurality of copper contact assemblies connected in series on the steel band substrate body, wherein the steel band substrate body comprises a connecting steel band constituting the center line of the body and connecting steel sheets spaced apart along both sides of the connecting steel band, the connecting end of each group of the copper contact assemblies being connected to the connecting steel sheets, and an angle being formed between the planes where each group of the copper contact assemblies are located after being connected and the connecting steel band.

[0006] Furthermore, each group of the copper contact assembly includes a top contact and contact arms extending along both sides of the top contact, adjacent contact arms form an angle relative to the top contact, and the end of each contact arm is formed with a covering body for riveting to the connecting steel sheet.

[0007] Furthermore, the covering body comprises a straight portion extending horizontally from the end of the contact arm to one side, a covering cavity is formed at the end of the straight portion, and a group of clips embracing each other are formed at the bottom of the covering cavity.

[0008] Furthermore, the plane where the covering body is located forms an angle with respect to the plane where the contact arm is located, and the covering body is arranged parallel to the connecting steel sheet.

[0009] Furthermore, a riveted portion is formed at the end of each group of connecting steel sheets, and a limiting portion is formed at a section inside the riveted portion.

[0010] Furthermore, the steel strip substrate body is formed by stamping.

[0011] The beneficial effects of the utility model are as follows:

[0012] Compared with the prior art, the utility model changes the steel base belt into a flat structure, and the angle of the strap is changed by a newly designed three-dimensional contact piece, which avoids the height difference caused by the bending of the steel belt and the large amount of stress caused by the transitional deformation of the steel belt. At the same time, the stress of the steel belt after stamping is very small, and no deformation occurs after heat treatment after stamping. Compared with the original product, the assembled product has consistent height of all contacts and greatly increased fatigue life, which greatly improves the stability and reliability of the product and can be used for straight or ring conductor connections.

[0013] Compared with the prior art, the production process is also simplified. The utility model changes the base strip structure and processing technology so that the stress of the steel strip after stamping is smaller and no deformation occurs after heat treatment, thereby reducing the complexity of the production process and improving production efficiency.

[0014] Compared with the prior art, the utility model improves the connection effect. It uses a flat baseband and a three-dimensional copper contact design. After the connecting conductor is extruded, the steel strip connecting piece undergoes elastic deformation, resulting in stable and reliable contact between the contact and the conductor, thereby improving the connection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 It is a front view of the utility model;

[0017] Figure 3 This is a schematic structural diagram of the main body of the steel strip substrate in the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the copper contact assembly in the utility model;

[0019] Figure 5 It is a side view of the copper contact assembly in the utility model.

[0020] Among them: 1. Steel strip substrate body; 2. Copper contact assembly; 11. Connecting steel strip; 12. Connecting steel sheet; 13. Riveting part; 14. Limiting part; 21. Top contact; 22. Contact arm; 23. Encapsulation body; 24. Clip. DETAILED DESCRIPTION

[0021] The specific implementation of the present utility model is described below in conjunction with the accompanying drawings.

[0022] like Figures 1 to 5 As shown, the utility model provides a watch strap contact connector based on a flat baseband, which aims to solve the problem that the traditional watch strap contact connector has different hardnesses of different parts of the steel band substrate, resulting in different bending angles when bending, which makes the height of the copper contact piece inconsistent after riveting and the formed electrical connection contact force cannot be stable.

[0023] Specifically, the utility model includes a steel strip substrate main body 1 and a plurality of copper contact assemblies 2 connected in series on the steel strip substrate main body 1. The steel strip substrate main body 1 includes a connecting steel strip 11 constituting the center line of the main body and connecting steel sheets 12 spaced apart along both sides of the connecting steel strip 11. The connecting end of each group of copper contact assemblies 2 is connected to the connecting steel sheet 12, and an angle is formed between the plane where each group of copper contact assemblies 2 are located after connection and the connecting steel strip 11.

[0024] Through the above technical solution, the utility model changes the baseband into a planar structure, and the angle of the strap is formed by a newly designed three-dimensional contact piece, thereby avoiding the defect of different heights of copper contacts caused by the traditional need to bend steel sheets.

[0025] In some embodiments, each group of copper contact assemblies 2 includes a top contact 21 and contact arms 22 extending along both sides of the top contact 21 , and adjacent contact arms 22 form an angle relative to the top contact 21 . The end of each contact arm 22 is formed with a covering body 23 for riveting to the connecting steel sheet 12 .

[0026] Through the above technical solution, each set of copper contact assembly 2 includes a top contact 21 and an extended contact arm 22. The design of these contact arms 22 can increase the contact area between the connector and the external conductor, thereby improving the stability and reliability of the connection. The angle formed between the top contact 21 and the contact arm 22 can make the copper contact have a three-dimensional design in structure, so that it can be used with a flat baseband; the design of the covering body 23 helps to fix the end of the copper contact assembly 2, making the connection between the copper contact and the connecting steel sheet 12 more firm, thereby improving the durability and vibration resistance of the connector.

[0027] In some embodiments, the covering body 23 includes a straight portion extending horizontally from the end of the contact arm 22 to one side, the end of the straight portion is formed with a covering cavity, and the bottom of the covering cavity is formed with a group of clips 24 that embrace each other.

[0028] Through the above technical solution, the riveting technology is used to fix the covering body 23 on the connecting steel sheet 12, which is simpler and faster than other fixing methods such as welding, and at the same time avoids damage to the connector due to high temperature.

[0029] In some embodiments, the plane where the covering body 23 is located forms an angle with the plane where the contact arm 22 is located, and the covering body 23 is arranged parallel to the connecting steel sheet 12 .

[0030] In some embodiments, a riveted portion 13 is formed at the end of each set of connecting steel sheets 12 , and a limiting portion 14 is formed at a section inside the riveted portion 13 .

[0031] In some embodiments, the steel strip substrate body 1 is formed by stamping.

[0032] The specific principle of this utility model to solve the defects of the prior art:

[0033] The utility model changes the steel base belt into a flat structure, and the angle of the belt is changed by a newly designed three-dimensional contact piece, thereby avoiding the height difference caused by the bending of the steel belt and the large amount of stress caused by the transitional deformation of the steel belt. At the same time, the stress of the steel belt after stamping is very small, and no deformation is produced after heat treatment after stamping. Compared with the original product, the assembled product has the same height of all contacts and greatly increases the fatigue resistance life, which greatly improves the stability and reliability of the product and can be used for straight or ring conductor connections.

[0034] The above description is an explanation of the utility model, not a limitation of the utility model. The scope of the utility model is defined by the claims. Any form of modification can be made within the protection scope of the utility model.

Claims

1. A watchband contact connector based on a planar baseband, characterized in that: The invention comprises a steel strip substrate body (1) and a plurality of copper contact sheet assemblies (2) connected in series on the steel strip substrate body (1), wherein the steel strip substrate body (1) comprises a connecting steel strip (11) constituting the center line of the body and connecting steel sheets (12) arranged at intervals along both sides of the connecting steel strip (11), the connecting end of each group of the copper contact sheet assemblies (2) is connected to the connecting steel sheet (12), and an angle is formed between the planes where the copper contact sheet assemblies (2) are connected and the connecting steel strip (11).

2. A watchband contact connector based on a planar baseband as claimed in claim 1, characterized in that: Each group of the copper contact assembly (2) comprises a top contact (21) and contact arms (22) extending along both sides of the top contact (21), adjacent contact arms (22) form an angle relative to the top contact (21), and the end of each contact arm (22) is formed with a covering body (23) for riveting to the connecting steel sheet (12).

3. A watchband contact connector based on a planar baseband as claimed in claim 2, characterized in that: The covering body (23) comprises a straight portion extending horizontally from the end of the contact arm (22) to one side, a covering cavity is formed at the end of the straight portion, and a group of clips (24) that embrace each other are formed at the bottom of the covering cavity.

4. A watchband contact connector based on a planar baseband as claimed in claim 2, characterized in that: The plane where the covering body (23) is located forms an angle with respect to the plane where the contact arm (22) is located, and the covering body (23) is arranged parallel to the connecting steel sheet (12).

5. The watchband contact connector based on a planar baseband as claimed in claim 1, characterized in that: A riveted portion (13) is formed at the end of each group of connecting steel sheets (12), and a limiting portion (14) is formed at a section inside the riveted portion (13).

6. The watchband contact connector based on a planar baseband according to claim 1, characterized in that: The steel strip substrate body (1) is formed by stamping.

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