A Pogopin component that prevents e-liquid from seeping in.

Abstract

This utility model discloses a Pogopin assembly for preventing e-liquid ingress, comprising a plastic bracket and a shielding needle. The inner wall of the shielding needle has at least one annular sealing groove, and inside the annular sealing groove is a composite dynamic sealing ring. The inner diameter surface of the composite dynamic sealing ring is interference-fitted with the outer surface of the needle tube. The inner wall of the plastic bracket is annularly connected with a guide groove, which is located at the end of a first sliding groove. This utility model achieves dynamic sealing between the shielding needle and the needle tube by providing a composite dynamic sealing ring on the inner wall of the shielding needle, effectively preventing e-liquid from seeping in along the outer wall of the needle tube. The guide groove inside the plastic bracket guides any accidentally infiltrated liquid to the lower part of the plastic bracket, preventing contact with electrical components. The miniature waterproof and breathable valve balances the internal and external air pressure, preventing liquid from being drawn in due to negative pressure, thus improving the liquid-proof performance and reliability of the Pogopin assembly and effectively preventing e-liquid ingress.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, and in particular to a Pogopin assembly that prevents the ingress of smoke oil. Background Technology

[0002] Pogopin is a precision connector used in peripheral electronic products. The product is mainly composed of parts such as pins, pin tubes, springs, mushroom heads, and tail plugs. The internal beveled structure of the pins ensures a stable and reliable connection between the parts, and plays a role in transmitting current and signals. Due to its characteristics of large current transmission, small footprint, precise contact, and high-strength application, it is the first choice for peripheral consumer connector external interface applications.

[0003] For example, a shielded pogopin component with application number CN202422250318.7 solves the dust and water resistance problem caused by the exposed rivet of traditional pogopins by shielding the needle and designing a concealed rivet. However, in specific application scenarios such as e-cigarettes and atomizing devices, the challenges are far greater than those faced with ordinary dust or water droplets. E-liquid is a liquid with low surface tension, high permeability, and often contains corrosive components such as glycerin and propylene glycol. Its low surface tension allows e-liquid to easily penetrate, and long-term contact can lead to oxidation and corrosion of internal metal components, resulting in increased resistance or even failure. The penetrated e-liquid can form an insulating film on the surface of conductive contacts, causing unstable or completely interrupted signal transmission. Summary of the Invention

[0004] To overcome the technical defects of the existing technology, this utility model provides a Pogopin component that prevents the ingress of soot.

[0005] The technical solution adopted by this utility model is: a Pogopin component for preventing e-liquid immersion, including a plastic bracket and a shielding needle. The lower inner end of the plastic bracket has a first sliding groove linearly distributed therein, and the upper inner end of the plastic bracket has a second sliding groove linearly distributed therein, connected to the first sliding groove. The shielding needle is slidably fitted inside the second sliding groove and slides through the first sliding groove. The top of the shielding needle extends outward from the plastic bracket and slides through a needle tube inside the shielding needle. The needle tube contains a spring, a conductive bead, and a connecting needle. The top of the connecting needle slides through the internal cavity of the shielding needle. The inner wall of the shielding needle has at least one annular sealing groove, and the annular sealing groove contains a composite dynamic sealing ring. The inner diameter surface of the composite dynamic sealing ring is interference-fitted with the outer surface of the needle tube. The inner wall of the plastic bracket is annularly connected with a guide groove, which is located at the end of the first sliding groove. A miniature waterproof and breathable valve is embedded in the side wall of the plastic bracket.

[0006] Preferably, the composite dynamic sealing ring is a composite structure consisting of an inner layer and an outer layer, wherein the inner layer is an elastic rubber body and the outer layer is a PTFE or fluororubber layer coated on the surface of the inner layer.

[0007] Preferably, the guide channel is formed by a continuous annular groove with a V-shaped cross-section.

[0008] Preferably, the apex angle of the annular groove is set to 60° to 90°.

[0009] Preferably, the miniature waterproof and breathable valve is an ePTFE membrane valve.

[0010] Preferably, the top of the shielding needle is provided with a riveting structure that brings its end inward.

[0011] The beneficial effects of this utility model are as follows: By setting a composite dynamic sealing ring on the inner wall of the shielding needle, a dynamic seal between the shielding needle and the needle tube is achieved, effectively preventing oil fumes from seeping in along the outer wall of the needle tube; the guide groove set in the plastic bracket can guide accidentally immersed liquid to the lower part of the plastic bracket to avoid contact with electrical components; the setting of the miniature waterproof and breathable valve can balance the internal and external air pressure, avoid liquid being sucked in due to negative pressure, improve the liquid resistance and reliability of the Pogopin component, and also effectively prevent e-liquid from seeping in, avoiding the situation where e-liquid seepage leads to corrosion and oxidation of metal components, resulting in increased resistance and failure, and also avoiding the situation where e-liquid seepage forms an insulating film on the surface of conductive contacts, causing unstable or interrupted signal transmission. Attached Figure Description

[0012] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0015] Figure 3 This is a cross-sectional view of the annular groove structure of this utility model;

[0016] Figure 4 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0017] Explanation of reference numerals in the attached figures: 1. Plastic bracket; 2. First sliding groove; 3. Second sliding groove; 4. Shielding needle; 401. Riveting structure; 5. Needle tube; 6. Spring; 7. Conductive bead; 8. Connecting needle; 9. Annular sealing groove; 10. Composite dynamic sealing ring; 1001. Inner layer; 1002. Outer layer; 11. Guide groove; 1101. Annular groove; 12. Miniature waterproof and breathable valve. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the various embodiments of this utility model will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details have been provided in the various embodiments of this utility model to facilitate a better understanding of this application. However, the technical solutions claimed in the claims of this application can be implemented even without these technical details and with various variations and modifications based on the following embodiments.

[0019] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, this embodiment provides a Pogopin assembly to prevent e-liquid ingress, including a plastic bracket 1 and a shielding needle 4. The lower interior of the plastic bracket 1 has a first sliding groove 2 linearly distributed, and the upper interior of the plastic bracket 1 has a second sliding groove 3 linearly distributed and connected to the first sliding groove 2. The shielding needle 4 is slidably fitted inside the second sliding groove 3 and slidably inserted through the first sliding groove 2. The top of the shielding needle 4 extends outward from the plastic bracket 1 and slidably inserts a needle tube 5 inside the shielding needle 4. The needle tube 5 contains a spring 6, a conductive bead 7, and a connecting needle 8. The top of the connecting needle 8 slidably inserts into the internal cavity of the shielding needle 4. The inner wall of the shielding needle 4 has at least one annular sealing groove 9. The annular sealing groove 9 contains a composite dynamic sealing ring 10, the inner diameter surface of which is interference-fitted with the outer surface of the needle tube 5. The plastic bracket 1... The inner wall of the frame 1 is connected in a ring with a guide groove 11, which is located at the end of the first sliding groove 2. The side wall of the plastic bracket 1 is embedded with a miniature waterproof and breathable valve 12. When the Pogopin assembly is inserted, the needle tube 5 slides in the shielded needle 4. The composite dynamic sealing ring 10 always maintains an interference fit with the outer wall of the needle tube 5 to form a dynamic sealing barrier. If a small amount of liquid enters, the guide groove 11 guides the small amount of liquid to the lower part of the plastic bracket 1 to avoid contact with electrical components. The miniature waterproof and breathable valve 12 allows air to pass through while blocking liquid, maintaining internal air pressure balance, further preventing liquid intake, improving the liquid resistance and reliability of the Pogopin assembly, and also effectively preventing e-liquid from entering. This avoids the situation where e-liquid entry leads to corrosion and oxidation of metal components, resulting in increased resistance and failure. It also avoids the situation where e-liquid seepage forms an insulating film on the surface of conductive contacts, causing unstable or interrupted signal transmission.

[0020] The composite dynamic sealing ring 10 is a composite structure consisting of an inner layer 1001 and an outer layer 1002. The inner layer 1001 is an elastic rubber body, and the outer layer 1002 is a PTFE or fluororubber layer coated on the surface of the inner layer 1001. This structure ensures sealing elasticity and also has low friction and corrosion resistance, thus extending the service life of the composite dynamic sealing ring 10.

[0021] The guide channel 11 is composed of continuous annular grooves 1101 with a V-shaped cross-section. It has a simple structure, is easy to process, and can effectively guide the flow of liquid and avoid accumulation.

[0022] The vertex angle of the annular groove 1101 is set to 60° to 90°, which improves the flow guiding efficiency and structural strength.

[0023] The miniature waterproof and breathable valve 12 is an ePTFE membrane valve, which has high breathability, high waterproof performance, high reliability, and is suitable for installation in small spaces.

[0024] The top of the shielding needle 4 is provided with a riveting structure 401 that brings its end inward, which enhances structural stability, prevents the shielding needle 4 from expanding outward, and further improves the sealing performance.

[0025] During operation, when the Pogopin assembly is plugged in, the needle 5 slides within the shielded needle 4, and the composite dynamic sealing ring 10 always maintains an interference fit with the outer wall of the needle 5, forming a dynamic sealing barrier. If a small amount of liquid enters, the guide groove 11 guides the small amount of liquid to the lower part of the plastic bracket 1 to avoid contact with electrical components. The miniature waterproof and breathable valve 12 allows air to pass through while blocking liquid, maintaining internal air pressure balance and further preventing liquid intake, thus improving the liquid resistance and reliability of the Pogopin assembly. It can also effectively prevent e-liquid from entering, avoiding the situation where e-liquid entry leads to corrosion and oxidation of metal components, resulting in increased resistance and failure. It also prevents e-liquid from forming an insulating film on the surface of conductive contacts, causing unstable or interrupted signal transmission.

[0026] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0027] Those skilled in the art will understand that the above embodiments are specific examples of implementing the present invention, and in practical applications, various changes can be made to them in form and detail without departing from the spirit and scope of the present invention.

Claims

1. A Pogopin assembly for preventing e-liquid immersion, comprising a plastic bracket (1) and a shielding needle (4), wherein a first sliding groove (2) is linearly distributed at the lower end of the interior of the plastic bracket (1), and a second sliding groove (3) connected to the first sliding groove (2) is linearly distributed at the upper end of the interior of the plastic bracket (1), the shielding needle (4) is slidably fitted inside the second sliding groove (3), and the top of the shielding needle (4) extends outward from the plastic bracket (1), and a needle tube (5) is slidably inserted inside the shielding needle (4), wherein a spring (6), a conductive bead (7), and a connecting needle (8) are provided inside the needle tube (5), and the top of the connecting needle (8) is slidably inserted into the internal cavity of the shielding needle (4), characterized in that: The inner wall of the shielding needle (4) is provided with at least one annular sealing groove (9), and the interior of the annular sealing groove (9) is provided with a composite dynamic sealing ring (10). The inner diameter surface of the composite dynamic sealing ring (10) is interference-fitted with the outer surface of the needle tube (5). The inner wall of the plastic bracket (1) is connected with a flow guide groove (11) in an annular shape. The flow guide groove (11) is located at the end of the first sliding groove (2). The side wall of the plastic bracket (1) is embedded with a miniature waterproof and breathable valve (12).

2. A Pogopin assembly according to claim 1, wherein: The composite dynamic sealing ring (10) is a composite structure consisting of an inner layer (1001) and an outer layer (1002). The inner layer (1001) is an elastic rubber body, and the outer layer (1002) is a PTFE or fluororubber layer coated on the surface of the inner layer (1001).

3. A Pogopin assembly that prevents the immersion of smoke oil according to claim 1 characterized by: The flow channel (11) is formed by a continuous annular groove (1101) with a V-shaped cross-section.

4. A Pogopin assembly according to claim 3, wherein: The vertex angle of the annular groove (1101) is set to 60° to 90°.

5. A Pogopin assembly that prevents the immersion of smoke oil according to claim 1 characterized by: The miniature waterproof and breathable valve (12) is configured as an ePTFE membrane valve.

6. A Pogopin assembly that prevents the immersion of smoke oil according to claim 1 characterized by: The top of the shielding needle (4) is provided with a riveting structure (401) that brings its end inward.

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