Connector assembly with silica gel cover

Abstract

The invention belongs to the technical field of connectors, and discloses a connector assembly with a silica gel cover, which comprises two spring needles and a plastic bracket, and is characterized in that the plastic bracket is connected with the two spring needles in an interference fit manner; the spring needle comprises a needle tube connected with the plastic support, a spring is arranged in the needle tube, a needle head connected with the spring and extending out of an opening in the top end of the needle tube is arranged in the needle tube, and a groove is formed in the middle of the needle head. The upper portion of the plastic support is coated with a dustproof silica gel cover, and a bent groove is formed in the middle of the dustproof silica gel cover. The spring needle and the plastic support are connected in an interference fit mode, the dustproof silica gel cover wraps the top of the spring needle, sealing is achieved through cooperation of the groove and the wrapping hole, liquid and dust are effectively prevented from entering the needle tube, the problems of oxidation, crystallization, needle clamping or insulation failure caused by liquid entering are solved, and the needle can be widely applied to humid, dusty and high-pollution scenes; and the application range of the spring needle connector is expanded.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of connectors, in particular to a connector assembly with a silica gel cover. BACKGROUND

[0002] The spring needle is a kind of precision connector applied in peripheral electronic products, which is generally composed of a needle, a needle tube and a spring. The inner surface of the needle and the needle tube is generally plated with nickel first to ensure wear resistance and oxidation resistance, and then plated with gold and platinum, which can greatly reduce the contact resistance of the product. Due to its large transmission current, small space occupation, precise contact and other characteristics, it is generally applied to mobile phones, tablets, portable charging devices, wearable smart products, smart homes, medical devices, aerospace products and other products. Due to the expansion gap characteristics of the conventional spring needle, the rivet is generally exposed upward in the product, which cannot be applied in scenes that often come into contact with liquid or are seriously contaminated by powder. SUMMARY

[0003] In order to overcome the technical defects of the prior art, the present application provides a connector assembly with a silica gel cover.

[0004] The technical solution adopted by the present application is: a connector assembly with a silica gel cover, comprising two spring needles, and further comprising a plastic support connected with the two spring needles through interference fit; the spring needle comprises a needle tube connected with the plastic support, the inside of the needle tube is provided with a spring, the inside of the needle tube is provided with a needle head connected with the spring and extending out of the top opening of the needle tube, and the middle of the needle head is provided with a groove; the upper part of the plastic support is covered with a dustproof silica gel cover, the middle part of the dustproof silica gel cover is provided with a curved groove, the curved groove comprises an inner curved groove and an outer curved groove connected with the inner curved groove, the bottom end of the dustproof silica gel cover is provided with an outward extending edge, and the top end of the dustproof silica gel cover is provided with a covering hole matched with the groove; the plastic support comprises a plastic mounting bracket, the bottom edge of the plastic mounting bracket is provided with a plastic mounting disc, an assembly groove matched with the outward extending edge is formed at the connection between the plastic mounting disc and the plastic mounting bracket, and a mounting hole matched with the needle tube gap is formed on the plastic mounting bracket.

[0005] Preferably, the bottom of the needle tube is flat or plate-shaped, PIN is welded at the bottom of the needle tube for wire welding or PCBA welding, and the product applicability and installation flexibility are improved.

[0006] Preferably, the depth of the groove is 0.3mm, and the length is 1.5mm, so as to achieve the positioning and dustproof and waterproof effect of the dustproof silica gel cover and the needle head.

[0007] Preferably, the plastic support is made of high-temperature resistant engineering plastic, which improves the overall heat resistance and is suitable for high-temperature welding process or high-temperature working environment.

[0008] Preferably, the top of the needle is spherical, and the spherical surface makes more precise contact with the plane of the mating part, which can effectively ensure a lower contact resistance at the contact interface and more stable signal transmission.

[0009] Preferably, the top edge of the extended edge is provided with an upwardly protruding assembly rib.

[0010] Preferably, the bottom end of the needle has a cutting surface.

[0011] Preferably, the angle of the cutting surface is set to 15 degrees.

[0012] Preferably, the distance between the two spring pins is set to be in the range of 1.5mm to 10.0mm.

[0013] Preferably, the plastic mounting plate has a fixing groove at its edge.

[0014] The beneficial effects of this invention are: 1. The spring pin and the plastic bracket are connected by an interference fit. The dustproof silicone cover covers the top of the spring pin and achieves a seal through the fit of the groove and the cover hole. This effectively prevents liquid and dust from entering the needle tube and avoids problems such as oxidation, crystallization, pin jamming or insulation failure caused by liquid entry. It can be widely used in humid, dusty and highly polluted environments, expanding the application range of spring pin connectors. 2. By providing a bending groove in the middle of the dustproof silicone cover, with the inner curved groove bending inward and the outer curved groove bending outward, the deformation is more uniform when under pressure, which not only enhances the structural strength but also reduces interference with the spring force of the spring needle, ensuring stable contact. 3. The plastic bracket and spring pin are interference-fitted, and the dustproof silicone cover engages with the assembly slot through the extended edge, making the connector assembly structure compact, not easy to fall off, and also achieving overall waterproof and dustproof protection. Attached Figure Description

[0015] 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.

[0016] Figure 1 This is a schematic diagram of a connector assembly with a silicone cover according to the present invention; Figure 2 This is a schematic diagram of the main structure of a connector assembly with a silicone cover according to the present invention; Figure 3 This is a cross-sectional view of a connector assembly with a silicone cover according to the present invention; Figure 4 This is a cross-sectional view of a spring pin structure of a connector assembly with a silicone cover according to the present invention. Figure 5 This is a schematic diagram of the dustproof silicone cover structure of a connector assembly with a silicone cover according to the present invention. Figure 6 This is a schematic diagram of the plastic support structure of a connector assembly with a silicone cover according to the present invention.

[0017] Explanation of reference numerals in the attached figures: 1. Spring needle; 101. Needle tube; 102. Spring; 103. Needle tip; 104. Groove; 105. Sectional surface; 2. Plastic bracket; 201. Plastic mounting bracket; 202. Plastic mounting plate; 203. Assembly groove; 204. Mounting hole; 205. Fixing groove; 3. Dustproof silicone cover; 301. Bending groove; 3011. Inner curved groove; 3012. Outer curved groove; 302. Outer edge; 303. Covering hole; 304. Assembly rib. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this invention clearer, the various embodiments of this invention 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 invention 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 , Figure 4 , Figure 5 and Figure 6As shown, this embodiment provides a connector assembly with a silicone cover, including two spring pins 1 and a plastic bracket 2. The plastic bracket 2 is connected to the two spring pins 1 by an interference fit. Each spring pin 1 includes a needle tube 101 connected to the plastic bracket 2. A spring 102 is provided inside the needle tube 101, and a needle tip 103 connected to the spring 102 and extending out of the top opening of the needle tube 101 is provided inside the needle tube 101. A groove 104 is provided in the middle of the needle tip 103. The upper part of the plastic bracket 2 is covered with a dustproof silicone cover 3. A bending groove 301 is provided in the middle of the dustproof silicone cover 3. The bending groove 301 includes an inward bending groove. The inner curved groove 3011 and the outer curved groove 3012 connected to the inner curved groove 3011 are provided with a bending groove 301 in the middle of the dustproof silicone cover 3. The inner curved groove 3011 of the bending groove 301 bends inward and the outer curved groove 3012 of the bending groove 301 bends outward, so that the deformation is more uniform when under pressure, which not only enhances the structural strength, but also reduces the interference with the elastic force of the spring needle 1 and ensures stable contact. The bottom end of the dustproof silicone cover 3 is provided with an outward edge 302, and the top end of the dustproof silicone cover 3 is provided with a covering hole 303 that matches the groove 104; the plastic bracket 2 includes a plastic mounting bracket 201, and the plastic mounting bracket 201 has A plastic mounting plate 202 is provided at the bottom edge. An assembly groove 203, which mates with the extended edge 302, is provided at the connection between the plastic mounting plate 202 and the plastic mounting bracket 201. An installation hole 204, which fits with the needle tube 101, is provided on the plastic mounting bracket 201. The plastic bracket 2 and the spring pin 1 are interference-fitted. The dustproof silicone cover 3 engages with the assembly groove 203 via the extended edge 302, making the connector assembly compact and less prone to detachment. It also achieves overall waterproofing and dustproofing. When the spring pin 1 is subjected to mating pressure, the needle 103 retracts into the needle tube 101, the spring 102 is compressed, and the dustproof silicone cover 3 moves with the needle 101. 3. During movement, elastic deformation occurs, and the bending groove 301 structure absorbs the deformation, maintaining a seal. When the pressure disappears, the spring 102 pushes the needle 103 to reset, and the dustproof silicone cover 3 returns to its original shape, continuing to provide sealing protection. The spring needle 1 and the plastic bracket 2 are connected by an interference fit. The dustproof silicone cover 3 covers the top of the spring needle 1 and achieves a seal through the groove 104 and the covering hole 303, effectively preventing liquids and dust from entering the needle tube 101. This avoids problems such as oxidation, crystallization, needle jamming, or insulation failure caused by liquid entry. It can be widely used in humid, dusty, and highly polluted environments, expanding the application range of the spring needle 1 connector.

[0020] The bottom of the needle tube 101 is designed to be either flat or through-plate to meet various welding requirements. PINs can be soldered to the bottom of the needle tube 101 for wire bonding or PCBA bonding, improving product applicability and installation flexibility.

[0021] The groove 104 has a depth of 0.3 mm and a length of 1.5 mm, which ensures that the dustproof silicone cover 3 is firmly covered without affecting the movement of the needle 103 and the performance of the spring 102, thus achieving the positioning and dustproof and waterproof effects of the dustproof silicone cover 3 and the needle 103.

[0022] The plastic bracket 2 is made of high-temperature resistant engineering plastic, which improves the overall heat resistance and is suitable for high-temperature welding processes or high-temperature working environments.

[0023] The top of the needle 103 is spherical, and the spherical surface makes more precise contact with the mating surface, which can effectively ensure a lower contact resistance at the contact interface and more stable signal transmission.

[0024] The top edge of the extended edge 302 is provided with an upwardly protruding assembly rib 304, which plays a squeezing function during assembly, enhancing the sealing between the dustproof silicone cover 3 and the plastic bracket 2, and further improving the ability to prevent liquid penetration.

[0025] The bottom end of the needle 103 is provided with a cutting surface 105. The angle of the cutting surface 105 is set to 15 degrees. The spring 102 reacts to the contact force of the product towards the inner wall at the cutting surface 105. This is the key to ensuring the clearance fit between the needle 103 and the needle tube 101, improving the movement trajectory of the spring 102, and enhancing the consistency of the contact response.

[0026] The distance between the two spring pins 1 is set to a range of 1.5mm to 10.0mm to meet the interface layout requirements of different application scenarios.

[0027] The plastic mounting plate 202 has a fixing groove 205 on its edge, which facilitates fixing it to the equipment housing by means of screws, clips, etc., thereby improving the stability of the installation.

[0028] During operation, when the spring needle 1 is subjected to docking pressure, the needle tip 103 retracts into the needle tube 101, the spring 102 is compressed, and the dustproof silicone cover 3 undergoes elastic deformation as the needle tip 103 moves. The bending groove 301 structure absorbs the deformation and maintains the seal. When the pressure disappears, the spring 102 pushes the needle tip 103 to reset, and the dustproof silicone cover 3 returns to its original shape, continuing to provide sealing protection.

[0029] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0030] 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 connector assembly with a silica gel cover, comprising two spring pins (1), characterized in that: Also include plastic support (2), the plastic support (2) is connected with two spring needle (1) by interference fit;The spring needle (1) includes the needle tube (101) connected with plastic support (2), the inside of needle tube (101) is equipped with spring (102), the inside of needle tube (101) is equipped with the needle (103) connected with spring (102) and extending needle tube (101) top opening, the middle part of needle (103) is equipped with groove (104);The upper portion of plastic support (2) is covered with dustproof silica gel cover (3), the middle part of dustproof silica gel cover (3) is equipped with curved groove (301), curved groove (301) includes the inner curved groove (3011) of inward recess and the outer curved groove (3012) connected with inner curved groove (3011), the bottom of dustproof silica gel cover (3) is equipped with outer extension edge (302), the top of dustproof silica gel cover (3) is equipped with the covering hole (303) matched with groove (104);The plastic support (2) includes plastic mounting bracket (201), the bottom edge of plastic mounting bracket (201) is equipped with plastic mounting disc (202), the connecting place of plastic mounting disc (202) and plastic mounting bracket (201) is opened with the assembly groove (203) matched with outer extension edge (302), plastic mounting bracket (201) is opened with the installation hole (204) matched with needle tube (101) gap.

2. A connector assembly with a silica gel cover according to claim 1, characterized in that: The bottom of needle tube (101) is flat or through plate type.

3. The connector assembly with a silica gel cover according to claim 1, characterized in that: The depth of groove (104) is 0.3mm, and the length is 1.5mm.

4. The connector assembly with a silica gel cover according to claim 1, characterized in that: The plastic support (2) is made of high-temperature resistant engineering plastic.

5. The connector assembly with a silica gel cover according to claim 1, characterized in that: The top of needle (103) is spherical.

6. The connector assembly with a silica gel cover according to claim 1, characterized in that: The top edge of outer extension edge (302) is equipped with upward protruding assembly rib (304).

7. The connector assembly with a silica gel cover according to claim 1, characterized in that: The bottom of needle (103) is equipped with section surface (105).

8. A connector assembly with a silica gel cover according to claim 7, characterized in that: The angle of section surface (105) is 15 degrees.

9. The connector assembly with a silica gel cover according to claim 1, characterized in that: The distance between the two spring needles (1) is 1.5mm-10.0mm.

10. The connector assembly with a silica gel cover according to claim 1, characterized in that: The edge of plastic mounting disc (202) is equipped with fixing groove (205).

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