High pull force signal transmission connector

Abstract

The utility model relates to connector structure technical field discloses high pull out force signal transmission connector, including USB female seat and USB male head, USB male head upper and lower sides are equipped with male head spring window, be equipped with male head spring in male head spring window, USB female seat upper and lower and both sides are equipped with female seat spring window, be equipped with female seat spring in female seat spring window, male head spring can be clamped in female seat spring window one end, USB male head both sides outer wall is equipped with the convex hull structure, the utility model discloses upper and lower sides of USB male head, increase four male head springs, corresponding USB female seat upper and lower sides are provided with four female seat springs, provide main product pull out force, set up convex hull structure at USB male head both sides, through the positioning convex circle department of convex hull structure and female seat spring window of USB female seat both sides clamping, through the interference portion and USB female seat both sides inner wall direct rigidity interference abutment, further increase the pull out force of product.

Description

Technical Field

[0001] This utility model relates to the field of connector structure technology, specifically to a high pull-out force signal transmission connector. Background Technology

[0002] Most existing USB devices use standard snap-fit ​​or simple plastic covering structures, and their pull-out force is limited by the elasticity of the material and the contact area, usually only meeting the industry standard of 10N±2N.

[0003] For example, an existing Chinese patent (CN205092353U) discloses a USB connector, including: a printed circuit board (PCB) and a housing. The rear end of the housing has a guide groove, the width of which is the same as the width of the PCB, and the height of which is the same as the thickness of the PCB. The upper and lower surfaces of the front end of the housing have through openings that expose the contact areas of the PCB. The upper and lower surfaces of the front end of the PCB each have contact areas that form an electrical connection with the USB female connector. The PCB is inserted into the housing through the guide groove, with the contact areas of the PCB exposed at the through openings of the housing, and the surfaces of the upper and lower contact areas of the PCB are flush with the upper and lower surfaces of the front end of the housing, respectively. This invention solves the problems of complex manufacturing processes, poor mass production, high costs, difficult processing techniques, and rough edges after secondary injection molding in related technologies.

[0004] Customer applications such as industrial equipment, automotive systems, and high-vibration environments place higher demands on the connection stability of USB connectors, requiring a pull-out force of ≥30N to prevent cable detachment or signal interruption due to accidental pulling. Therefore, we provide high pull-out force signal transmission connectors. Utility Model Content

[0005] The purpose of this invention is to provide a high pull-out force signal transmission connector to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high pull-out force signal transmission connector, including a USB female connector and a USB male connector. The USB male connector has male connector spring windows on its upper and lower sides, and male connector springs are provided inside the male connector spring windows. The USB female connector has female connector spring windows on its upper and lower sides and on both sides, and female connector springs are provided inside the female connector spring windows. The male connector springs can be locked at one end of the female connector spring window. The outer walls on both sides of the USB male connector have convex structures. The convex structures include interference portions and positioning convex round portions. The interference portions abut against the inner wall of the side of the USB female connector, and the positioning convex round portions can be locked at one end of the female connector spring window located on the side.

[0007] Furthermore, one end of the female spring is in a V-shape that is concave inward, and the V-shaped end of the female spring can be locked inside the window end of the male spring.

[0008] Furthermore, one end of the male contact spring is an inverted V-shape that convexes outward.

[0009] Furthermore, the window end of the female socket spring and the V-shaped end of the female socket spring are in a straight line position, and the inverted V-shape of the male socket spring is locked within the straight line position, the length of the straight line position is not less than 1.85mm.

[0010] Furthermore, the USB male connector has potting holes on both the top and bottom sides, and there are multiple potting holes.

[0011] Furthermore, four male connector springs are provided, with two male connector springs on each of the upper and lower sides of the USB male connector.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention, through the design of a USB male connector, male spring contacts, and a convex structure, achieves the following when using a USB connector: Four male spring contacts are added to the upper and lower sides of the USB male connector, and four female spring contacts are correspondingly provided on the upper and lower sides of the USB female connector. The engagement of the four male spring contacts with the female spring contact windows, and the engagement of the four female spring contacts with the male spring contact windows, provides the main product pull-out force. Furthermore, the convex structure on both sides of the USB male connector engages with the female spring contact windows on both sides of the USB female connector through positioning convex circles, and directly and rigidly interferes with the inner walls on both sides of the USB female connector through interference parts, further increasing the product pull-out force.

[0014] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0015] Figure 1 This is an exploded view of the high pull-out force signal transmission connector of this utility model;

[0016] Figure 2 for Figure 1 Enlarged structural diagram at point A in the middle;

[0017] Figure 3 This is a perspective view of the high pull-out force signal transmission connector of this utility model;

[0018] Figure 4 for Figure 3 Enlarged structural diagram at point B;

[0019] Figure 5 This is a perspective view of the high pull-out force signal transmission connector of this utility model.

[0020] Figure 6 for Figure 5 Enlarged structural diagram at point C.

[0021] In the diagram: 1. USB female connector; 2. USB male connector; 3. Female connector spring window; 4. Female connector spring; 5. Male connector spring window; 6. Male connector spring; 7. Potting hole; 8. Convex bulge structure; 801. Interference part; 802. Positioning convex circle. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Please see Figures 1-6 This utility model provides a technical solution: a high pull-out force signal transmission connector, including a USB female connector 1 and a USB male connector 2. The USB male connector 2 has male connector spring windows 5 on its upper and lower sides, and male connector springs 6 are housed within the male connector spring windows 5. The male connector spring windows 5 provide installation space for the male connector springs 6 while limiting the range of motion of the springs, ensuring precise engagement with the female connector springs 4. The male connector springs 6 form a mechanical lock with the female connector spring windows 3 through elastic deformation, providing initial pull-out force and preventing the male connector from falling off due to slight external force.

[0024] The USB female connector 1 has female connector spring windows 3 on the top, bottom, and both sides, and spring windows 3 and springs 4 on the top, bottom, and sides. Through multi-point contact, stress is dispersed, improving the overall pull-out force and enhancing the resistance to lateral forces. The female connector spring window 3 contains a female connector spring 4, and the male connector spring 6 can be locked at one end of the female connector spring window 3. The female connector spring 4 and the male connector spring 6 cooperate to form a double locking structure, further improving the connection reliability.

[0025] The outer walls of both sides of the USB male connector 2 are provided with convex structures 8, which include an interference portion 801 and a positioning convex portion 802. The interference portion 801 abuts against the inner wall of the side of the USB female connector 1, and the positioning convex portion 802 can be locked at one end of the female connector spring window 3 located on the side. The convex structure 8 further enhances the pull-out force through physical interference, compensating for the shortcomings of the spring structure in extreme environments. The interference portion 801 rigidly abuts against the inner wall of the side of the female connector 1, increasing friction and preventing the male connector 2 from loosening due to vibration or pulling. The positioning convex portion 802 locks into one end of the female connector spring window 3, forming a secondary locking and improving the resistance to pull-out.

[0026] One end of the female connector spring 4 is a V-shape that curves inward, and this V-shaped end can be locked inside one end of the male connector spring window 5. One end of the male connector spring 6 is an inverted V-shape that curves outward. The V-shaped structure can be locked inside their respective windows when the USB male connector 2 is inserted.

[0027] The female spring clip window 3 and the V-shaped end of the female spring clip 4 form a straight window section. The inverted V-shaped end of the male spring clip 6 is fitted into this straight window section, and the length of this straight window section is not less than 1.85mm. A straight window section length ≥ 1.85mm ensures that the male spring clip 6 can extend sufficiently into the female spring clip window 3, allowing the V-shaped end of the male spring clip 6 to be fully fitted into the female spring clip window 3, thus increasing the pull-out force.

[0028] The USB male connector 2 has multiple injection holes 7 on its upper and lower sides. The injection holes 7 correspond to the USB plastic ejector slots. When the USB male connector 2 is molded into a plastic outer mold, the flowing glue enters the injection holes 7 so that the outer mold glue provides a higher holding force on the wire after solidification, ensuring that the product will not have problems after the pull-out force is increased.

[0029] There are four male contact springs 6, with two on each of the top and bottom sides of the USB male connector 2. The four male contact springs 6, together with the female contact spring 4, form four sets of locking points, distributing external force and increasing pull-out force. The symmetrical distribution on the top and bottom sides balances the insertion and extraction forces, preventing deformation or damage caused by force on one side.

[0030] When using the USB connector, four male spring contacts 6 are added to the upper and lower sides of the USB male connector, and four female spring contacts 4 are provided on the upper and lower sides of the corresponding USB female connector 1. The engagement of the four male spring contacts 4 with the female spring contact windows 3 and the engagement of the four female spring contacts 4 with the male spring contact windows 5 provides the main pull-out force. In addition, convex structures 8 are provided on both sides of the USB male connector 2. The positioning convex round parts 802 of the convex structures 8 engage with the female spring contact windows 3 on both sides of the USB female connector 1, and the interference parts 801 directly and rigidly interfere with the inner walls on both sides of the USB female connector 1, further increasing the pull-out force. Laboratory verification shows that the pull-out force of the improved USB male connector is stable at 32N-35N, meeting customer requirements.

[0031] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

Claims

1. A high pull-out force signal transmission connector, comprising a USB female connector (1) and a USB male connector (2), characterized in that: The USB male connector (2) has male connector spring windows (5) on the top and bottom sides, and male connector springs (6) are provided in the male connector spring windows (5). The USB female connector (1) has female connector spring windows (3) on the top, bottom and both sides, and female connector springs (4) are provided in the female connector spring windows (3). The male connector springs (6) can be locked at one end of the female connector spring window (3). The outer walls on both sides of the USB male connector (2) have convex structures (8). The convex structures (8) include interference parts (801) and positioning convex round parts (802). The interference parts (801) abut against the inner wall of the side of the USB female connector (1). The positioning convex round parts (802) can be locked at one end of the female connector spring window (3) located on the side.

2. The high pull-out force signal transmission connector according to claim 1, characterized in that: One end of the female spring (4) is concave inward V-shape, and the V-shaped end of the female spring (4) can be locked inside one end of the male spring window (5).

3. The high pull-out force signal transmission connector according to claim 2, characterized in that: The male head spring (6) has an inverted V-shape that bulges outward at one end.

4. The high pull-out force signal transmission connector according to claim 3, characterized in that: The window (3) of the female spring and the V-shaped end of the female spring (4) are in a straight line position. The inverted V-shape of the male spring (6) is locked in the straight line position. The length of the straight line position is not less than 1.85mm.

5. The high pull-out force signal transmission connector according to any one of claims 1-4, characterized in that: The USB male connector (2) has potting holes (7) on its upper and lower sides, and there are multiple potting holes (7).

6. The high pull-out force signal transmission connector according to claim 1, characterized in that: The male connector spring (6) is provided in four parts, and the USB male connector (2) is provided with two male connector springs (6) on the upper and lower sides.

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