Dustproof Pogo pin connector assembly

By designing a combined structure of outer tube closing, limit frame and nickel plating layer in the Pogopin connector, the problem of increasing contact resistance caused by dust accumulation is solved, which improves dust resistance and extends product life.

CN119324337APending Publication Date: 2025-01-17SHENZHEN AMOS SCI & TECH CO LTD
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Patent Information

Application Number
CN202411470752.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-10-21
Publication Date
2025-01-17

AI Technical Summary

Technical Problem

In smart home and security camera products, Pogopin connectors are prone to increase contact resistance due to dust accumulation during long-term use, which affects the normal operation of the product.

Method used

A dust-proof Pogopin connector assembly is designed. By setting the outer tube cover above the needle tube and slidingly connecting it to the outside of the needle B, and setting the limit frame above the needle B to fit the rolling beads, forming a closed structure to prevent dust from entering. Inside, the sliding connection between the needle plate and the lumen and the nickel-plated layer are used to reduce friction.

Benefits of technology

It effectively improves the dust resistance of the Pogopin connector, prevents dust from entering the interior, reduces contact resistance, extends the service life of the product and reduces maintenance costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention 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, a needle head B is slidably connected to the upper portion of the tube cavity, 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 invention relates to the technical field of connectors, in particular to a dustproof Pogopin connector assembly. Background Art

[0002] Pogopin is a precision connector used in peripheral electronic products. It is usually 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 is generally round, flat, spiked, knife-edge, ball-shaped, etc. Because of its large transmission current, small space occupation, precise contact, waterproof and high-intensity 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 a sliding friction contact to a rolling friction contact. The general design structure of the 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, and 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 state 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 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. Summary of the invention

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

[0005] The present invention provides the following technical solution: The present invention discloses a dustproof Pogopin connector assembly, comprising a needle tube, a lumen is opened in the vertical direction inside the needle tube, a spring is arranged in the lumen, the lower end of the spring is connected to the bottom of the lumen, a needle B is slidably connected to the upper part of the lumen, a needle A is arranged on the needle B, the needle A comprises a needle column arranged on the inner side of the needle B, a needle plate is arranged below the needle column, the upper end of the spring is connected to the needle plate, and a rolling ball is arranged 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 inclined, and the rolling ball is in contact with the needle column and the abutment surface.

[0007] As a preferred embodiment, 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, and 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 in a structure, and the needle head B and the limiting frame are integrally formed in a structure.

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

[0010] As a preferred solution, a needle closing opening is provided above the needle B, and the needle closing opening 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 surface 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-lubricating properties.

[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] In the present invention, an outer tube end is arranged above the needle tube, and the outer tube end is slidably connected to the outer side of the needle B. A limit frame is arranged on the outer side of the needle B, and the outer tube end is matched with the limit frame. The side of the limit frame is slidably connected to the wall of the tube cavity. Through such a structural arrangement, 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 dust resistance 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 needle B, and the needle closing opening fits with the rolling ball. The needle closing opening and the rolling ball are installed in coordination with each other, so that the rolling ball can roll on needle B and prevent dust particles stuck on the surface of the rolling ball from falling into needle B, thereby improving the dust resistance of the Pogopin connector assembly.

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

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

[0021] Figure 2 It is a structural cross-sectional view of the present invention;

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

[0023] Figure 4 It is a structural cross-sectional view of the present invention 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 described embodiments 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 creative work 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 vertically opened 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, a needle B4 is slidably connected to the upper part of the lumen 2, a needle A is arranged on the needle B4, 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, a rolling ball 7 is arranged on the upper inner side of the needle B4, and 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 butting surface 8 is arranged above the needle column 5, and the butting surface 8 is arranged inclined. The rolling ball 7 fits in with the needle column 5 and the butting surface 8, and the inclined surface design of the butting surface 8 provides lateral force for the rolling ball 7 to ensure 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. The outer tube end 9 is adapted to the limit frame 10, and 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 dust resistance 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, thereby improving the dustproofness of the Pogopin connector assembly.

[0032] like Figure 1 , 2 As shown in FIG. 4 , a needle opening 11 is provided above the needle B4, and the needle opening 11 fits with the rolling ball 7. The installation cooperation between the needle opening 11 and the rolling ball 7 satisfies the rolling ball 7 on the needle B4 and prevents 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 is engaged with the interference surface 13. 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 inner 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 a nickel-plated layer is provided on the wall of the lumen 2, which can reduce the friction between the needle B4 and the needle plate 6 and the lumen 2, thereby making the Pogopin connector assembly have reliable contact and more sensitive response when used.

[0035] like Figure 1 , 2 As shown in 4, the needle B4 is made of POM or PTFE material with good self-lubricating properties, 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, so that the scratch resistance is improved, thereby preventing 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 dustproof Pogopin connector assembly is set to avoid the rolling ball 7 being compressed when the traditional Pogopin connector assembly is used, so that a gap appears above the rolling ball 7 and the needle B4, and the dust particles stuck on the surface of the rolling ball 7 are easily transferred to the inside of the needle tube 1, which easily leads to a large contact resistance value of the product and even product failure;

[0038] An outer tube closing end 9 is arranged above the needle tube 1, and the outer tube closing end 9 is slidably connected to the outer side of the needle B4. A limiting frame 10 is arranged on the outer side of the needle B4, and the outer tube closing end 9 is adapted to the limiting frame 10. The side of the limiting frame 10 is slidably connected to the cavity wall of the tube cavity 2. Through such a structural arrangement, when the rolling ball 7 is pushed, the outer tube closing end 9 is always in contact with the outer side of the needle B4, and the side of the limiting frame 10 is always in contact with the inner wall of the tube cavity 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 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.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that 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: The needle tube (1) has a lumen (2) formed in the vertical direction inside, 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), a needle B (4) is slidably connected to the upper part of the lumen (2), a needle A is arranged on the needle B (4), the needle A includes a needle column (5) arranged on the inner side of the needle B (4), 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 B (4).

2. A dustproof Pogopin connector assembly according to claim 1, characterized in that: A butt surface (8) is arranged above the needle column (5), and the butt surface (8) is arranged obliquely, and the rolling ball (7) is in contact with the needle column (5) and the butt 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), and the side surface of the limit frame (10) is slidably connected to the wall of the lumen (2).

4. A 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 tube cavity (2).

6. The dustproof Pogopin connector assembly according to claim 1, characterized in that: A needle closing opening (11) is arranged above the needle B (4), and the needle closing opening (11) is 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.