Dustproof Pogo pin connector assembly

By setting the outer tube closing, limit frame, needle closing and closed space in the Pogopin connector, the problem of large contact resistance caused by dust accumulation is solved, and higher dust resistance and longer service life are achieved.

CN223260947UActive Publication Date: 2025-08-22SHENZHEN AMOS SCI & TECH CO LTD
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Patent Information

Application Number
CN202422542065.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-21
Publication Date
2025-08-22
Estimated Expiration
2034-10-21

AI Technical Summary

Technical Problem

In smart home and security camera products, the accumulation of dust between the rolling beads of the Pogopin connector and the needle tube causes a large contact resistance value, affecting the normal use of the product.

Method used

A dust-proof Pogopin connector assembly is designed. By setting a sliding connection between the outer tube closing and the limit frame on the needle tube, the needle closing and the rolling beads are arranged on the needle. The needle column and the needle plate are integrally formed, and a self-lubricating material and a nickel-plated layer are used to form a closed space to avoid dust entering.

Benefits of technology

It effectively prevents dust from entering the needle tube, improves the dust resistance of the connector, reduces product failure caused by large contact resistance, extends service life and reduces maintenance costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of connectors, and discloses a dustproof Pogopin connector assembly which comprises a needle tube, a tube cavity is formed in the needle tube in the vertical direction, a spring is arranged in the tube cavity, the lower end of the spring is connected with the bottom of the tube cavity, the upper portion of the tube cavity is connected with a needle head B in a sliding mode, a needle head A is arranged on the needle head B, and the needle head A comprises a needle column arranged on the inner side of the needle head B; a needle plate is arranged below the needle column, the upper end of the spring is connected with the needle plate, a rolling bead is arranged on the inner side of the upper portion of the needle head B, an abutting face is arranged above the needle column, the rolling bead is attached to the needle column and attached to the abutting face, an outer tube closing opening is formed above the needle tube and slidably connected with the outer side of the needle head B, and a limiting frame is arranged on the outer side of the needle head B. The outer tube closing opening is matched with the limiting frame, the side face of the limiting frame is in sliding connection with the cavity wall of the tube cavity, the side face of the needle plate is in sliding connection with the cavity wall of the tube cavity, and the dustproof performance of the Pogo pin connector assembly can be improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to a dustproof Pogopin connector component. Background Art

[0002] Pogopin is a precision connector used in peripheral electronic products. It is generally composed of three parts: a needle, a needle tube, and a spring. Due to the differences in the contact interface, the top of the needle generally has round, flat, spike-shaped, knife-edge, ball-shaped and other styles. Because of its large transmission current, small space occupation, precise contact, waterproof and high-strength application characteristics, it is generally used in mobile phones and tablet devices, portable charging devices, wearable smart products, smart homes, medical, aerospace and other products.

[0003] In smart home and security camera products, when the application scenario requires a rotating or sliding connection, the friction contact group is changed from sliding friction contact to rolling friction contact. The general design structure of Pogopin is that a spring is provided inside the needle tube, and a rolling ball is provided at the mouth of the needle tube. The upper end of the spring is connected to the rolling ball. The internal spring is designed to have a large elastic force to avoid the influence of micro-motion on the contact during rolling. However, when the working state is used in this sliding manner for a long time, the dust particles stuck on the surface are easily accumulated in the gap formed by the rolling ball and the needle tube. In addition, due to the rolling relationship of the rolling ball, the accumulated dust particles are easily transferred to the inside of the needle tube, which can easily lead to a large contact resistance of the product and even product failure. Therefore, we propose a dust-proof Pogopin connector assembly. Utility Model Content

[0004] In view of the deficiencies in the prior art, the present invention provides a dustproof Pogopin connector assembly, which solves the problems mentioned in the above background.

[0005] The present invention provides the following technical solution: The present invention discloses a dust-proof Pogopin connector assembly, comprising a needle tube, a lumen being provided in the vertical direction inside the needle tube, a spring being provided in the lumen, the lower end of the spring being connected to the bottom of the lumen, a needle B being slidably connected to the upper part of the lumen, a needle A being provided on the needle B, the needle A comprising a needle column provided on the inner side of the needle B, a needle plate being provided below the needle column, the upper end of the spring being connected to the needle plate, and a rolling ball being provided on the inner side of the upper part of the needle B.

[0006] As a preferred solution, an abutment surface is provided above the needle column, the abutment surface is arranged at an angle, and the rolling ball is in contact with the needle column and the abutment surface.

[0007] As a preferred solution, an outer tube end is provided above the needle tube, and the outer tube end is slidably connected to the outer side of the needle B. A limit frame is provided on the outer side of the needle B, and the outer tube end is adapted to the limit frame. The side of the limit frame is slidably connected to the wall of the lumen.

[0008] As a preferred solution, the needle column and the needle plate are integrally formed, and the needle head B and the limiting frame are integrally formed.

[0009] As a preferred solution, the side surface of the needle plate is slidably connected to the wall of the lumen.

[0010] As a preferred solution, a needle end is provided above the needle B, and the needle end fits with the rolling ball.

[0011] As a preferred solution, an interference groove is provided on the inner side of the needle B, and an interference surface is provided on the outer side of the needle column, and the interference groove is engaged with the interference surface.

[0012] As a preferred solution, the cavity wall of the tube cavity is a smooth structure, and the cavity wall of the tube cavity is provided with a nickel-plated layer.

[0013] As a preferred solution, the needle B is made of POM or PTFE material with good self-lubrication.

[0014] As a preferred solution, the surface of the rolling ball is provided with a nickel plating layer.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The utility model is provided with an outer tube end above the needle tube, and the outer tube end is slidably connected to the outer side of the needle B. A limit frame is provided on the outer side of the needle B, and the outer tube end is adapted to the limit frame. The side of the limit frame is slidably connected to the wall of the tube cavity. Through such a structural setting, when the rolling ball is pushed, the outer tube end is always in contact with the outer side of the needle B, and the side of the limit frame is always in contact with the inner wall of the tube cavity, thereby effectively preventing dust from entering the interior of the needle tube from the needle tube and the needle B, thereby improving the dustproofness of the Pogopin connector assembly.

[0017] The side of the needle plate is slidably connected to the wall of the tube cavity to prevent external dust from falling into the needle tube through the needle plate, thereby improving the dust resistance of the Pogopin connector assembly.

[0018] A needle closing opening is provided above the needle B, and the needle closing opening fits with the rolling ball. The installation cooperation between the needle closing opening and the rolling ball satisfies the rolling ball to roll on the needle B and prevents dust particles stuck on the surface of the rolling ball from falling into the needle B, thereby improving the dust resistance of the Pogopin connector assembly.

[0019] By inserting the needle column inside the inner side of the needle B, the interference groove and the interference surface are engaged to form a closed space, which prevents external dust from being transferred into the lumen of the needle tube through the needle B, resulting in a large contact resistance value of the product and even product failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural diagram of the utility model;

[0021] Figure 2 This is a structural cross-sectional view of the utility model;

[0022] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0023] Figure 4 It is a structural cross-sectional view of the utility model in working state;

[0024] Figure 5 for Figure 4 Enlarged view of point B in the middle.

[0025] In the figure: 1. needle tube; 2. tube cavity; 3. spring; 4. needle B; 5. needle column; 6. needle plate; 7. rolling ball; 8. abutment surface; 9. outer tube closing; 10. limit frame; 11. needle closing; 12. interference groove; 13. interference surface. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] See also Figure 1-5A dustproof Pogopin connector assembly of the present embodiment includes a needle tube 1, a lumen 2 is opened vertically inside the needle tube 1, a spring 3 is arranged in the lumen 2, the lower end of the spring 3 is connected to the bottom of the lumen 2, the upper part of the lumen 2 is slidably connected with a needle B4, a needle A is arranged on the needle B4, the needle A includes a needle column 5 arranged on the inner side of the needle B4, a needle plate 6 is arranged below the needle column 5, the upper end of the spring 3 is connected to the needle plate 6, and a rolling ball 7 is arranged on the inner side of the upper part of the needle B4. The dustproofness of the Pogopin connector assembly is improved through the structural setting of the Pogopin connector assembly.

[0028] like Figure 2 、 4 As shown, a butt surface 8 is provided above the needle column 5, and the butt surface 8 is inclined. The rolling ball 7 fits in with the needle column 5 and the butt surface 8. The inclined surface design of the butt surface 8 provides lateral force for the rolling ball 7, ensuring the stability of the rolling contact of the rolling ball 7.

[0029] like Figure 2 、 4 As shown, an outer tube end 9 is provided above the needle tube 1, and the outer tube end 9 is slidably connected to the outer side of the needle B4. A limit frame 10 is provided on the outer side of the needle B4, and the outer tube end 9 is adapted to the limit frame 10. The side of the limit frame 10 is slidably connected to the wall of the lumen 2. Through such a structural setting, when the rolling ball 7 is pushed, the outer tube end 9 is always in contact with the outer side of the needle B4, and the side of the limit frame 10 is always in contact with the inner wall of the lumen 2, thereby effectively preventing dust from entering the interior of the needle tube 1 from the needle tube 1 and the needle B4, thereby improving the dustproofness of the Pogopin connector assembly.

[0030] like Figure 2 、 4 As shown, the needle column 5 and the needle plate 6 are integrally formed to improve the integrity of the needle column 5 and the needle plate 6 , and the needle head B4 and the limiting frame 10 are integrally formed to improve the integrity of the needle head B4 and the limiting frame 10 .

[0031] like Figure 2 As shown, the side of the needle plate 6 is slidably connected to the wall of the lumen 2, thereby preventing external dust from falling into the needle tube 1 through the needle plate 6 and improving the dustproofness of the Pogopin connector assembly.

[0032] like Figure 1 、 2 As shown in Figure 4, a needle opening 11 is provided above the needle B4, and the needle opening 11 fits with the rolling ball 7. Through the installation cooperation of the needle opening 11 and the rolling ball 7, the rolling ball 7 can roll on the needle B4 and prevent dust particles stuck on the surface of the rolling ball 7 from falling into the needle B4, thereby improving the dust resistance of the Pogopin connector assembly.

[0033] like Figure 2 、 3 As shown in Figure 4, an interference groove 12 is provided on the inner side of the needle B4, and an interference surface 13 is provided on the outer side of the needle column 5. The interference groove 12 and the interference surface 13 are engaged with each other. By inserting the needle column 5 on the inner side of the inner side of the needle B4, the interference groove 12 and the interference surface 13 are engaged with each other to form a closed space, which prevents external dust from being transferred to the inside of the tube cavity 2 of the needle tube 1 through the needle B4, resulting in a large contact resistance of the product and even product failure.

[0034] like Figure 2 、 4 As shown, the wall of the lumen 2 is a smooth structure, and the wall of the lumen 2 is provided with a nickel-plated layer, which can reduce the friction between the needle B4 and the needle plate 6 and the lumen 2, thereby making the Pogopin connector assembly more reliable in contact and more sensitive in response when in use.

[0035] like Figure 1 、 2 As shown in FIG. 4 , the needle B4 is made of POM or PTFE material with good self-lubrication, which increases the service life of the needle B4 and reduces the subsequent maintenance cost of the Pogopin connector assembly.

[0036] like Figure 1 、 2 As shown in FIG. 4 , the surface of the rolling ball 7 is provided with a nickel-plated layer, which improves the scratch resistance and prevents the rolling ball 7 from being excessively worn during long-term use of the Pogopin connector assembly, thereby affecting the normal use of the Pogopin connector assembly.

[0037] In the specific implementation of this embodiment, the structure of the dust-proof Pogopin connector assembly is set to avoid the situation in which the rolling ball 7 is compressed when the conventional Pogopin connector assembly is used, resulting in a gap between the rolling ball 7 and the upper part of the needle B4. Dust particles stuck on the surface of the rolling ball 7 are easily transferred to the inside of the needle tube 1, which may cause the product contact resistance to be too high and even product failure.

[0038] An outer tube closing end 9 is provided above the needle tube 1, and the outer tube closing end 9 is slidably connected to the outer side of the needle B4. A limit frame 10 is provided on the outer side of the needle B4. The outer tube closing end 9 is adapted to the limit frame 10, and the side of the limit frame 10 is slidably connected to the cavity wall of the lumen 2. With such a structural arrangement, when the rolling ball 7 is moved, the outer tube closing end 9 is always in contact with the outer side of the needle B4, and the side of the limit frame 10 is always in contact with the inner wall of the lumen 2, thereby effectively preventing dust from entering the interior of the needle tube 1 from the needle tube 1 and the needle B4, thereby improving the dustproofness of the Pogopin connector assembly;

[0039] The side of the needle plate 6 is slidably connected to the wall of the lumen 2 to prevent external dust from falling into the needle tube 1 through the needle plate 6, thereby improving the dustproofness of the Pogopin connector assembly;

[0040] A needle closing opening 11 is provided above the needle B4, and the needle closing opening 11 fits with the rolling ball 7. The needle closing opening 11 and the rolling ball 7 are installed and matched to meet the rolling ball 7 to roll on the needle B4, and prevent dust particles stuck on the surface of the rolling ball 7 from falling into the needle B4, thereby improving the dust resistance of the Pogopin connector assembly;

[0041] By inserting the needle column 5 inside the inner side of the needle B4, the interference groove 12 and the interference surface 13 are interference-engaged to form a closed space, thereby preventing external dust from being transferred through the needle B4 into the lumen 2 of the needle tube 1, resulting in a large contact resistance value of the product and even product failure.

[0042] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dustproof Pogopin connector assembly, comprising a needle tube (1), characterized in that: A lumen (2) is provided in the vertical direction inside the needle tube (1), a spring (3) is provided in the lumen (2), the lower end of the spring (3) is connected to the bottom of the lumen (2), a needle B (4) is slidably connected to the upper part of the lumen (2), a needle A is provided on the needle B (4), the needle A includes a needle column (5) provided on the inner side of the needle B (4), a needle plate (6) is provided below the needle column (5), the upper end of the spring (3) is connected to the needle plate (6), and a rolling ball (7) is provided on the inner side of the upper part of the needle B (4).

2. The dustproof Pogopin connector assembly according to claim 1, characterized in that: A contact surface (8) is provided above the needle column (5), and the contact surface (8) is arranged at an angle. The rolling ball (7) fits in contact with the needle column (5) and the contact surface (8).

3. The dustproof Pogopin connector assembly according to claim 1, characterized in that: An outer tube end (9) is provided above the needle tube (1), and the outer tube end (9) is slidably connected to the outer side of the needle B (4). A limit frame (10) is provided on the outer side of the needle B (4), and the outer tube end (9) is adapted to the limit frame (10). The side of the limit frame (10) is slidably connected to the wall of the lumen (2).

4. The dustproof Pogopin connector assembly according to claim 3, characterized in that: The needle column (5) and the needle plate (6) are integrally formed as a structure, and the needle head B (4) and the limiting frame (10) are integrally formed as a structure.

5. The dustproof Pogopin connector assembly according to claim 1, characterized in that: The side surface of the needle plate (6) is slidably connected to the cavity wall of the tubular cavity (2).

6. The dustproof Pogopin connector assembly according to claim 1, characterized in that: A needle opening (11) is provided above the needle B (4), and the needle opening (11) fits in contact with the rolling ball (7).

7. The dustproof Pogopin connector assembly according to claim 1, characterized in that: An interference groove (12) is provided on the inner side of the needle head B (4), and an interference surface (13) is provided on the outer side of the needle column (5), and the interference groove (12) is engaged with the interference surface (13).

8. The dustproof Pogopin connector assembly according to claim 1, characterized in that: The cavity wall of the tube cavity (2) is provided with a smooth surface structure, and the cavity wall of the tube cavity (2) is provided with a nickel-plated layer.

9. The dustproof Pogopin connector assembly according to claim 1, characterized in that: The needle B (4) is made of POM or PTFE material with good self-lubricating properties.

10. The dustproof Pogopin connector assembly according to claim 1, characterized in that: The surface of the rolling ball (7) is provided with a nickel plating layer.