Finger contact prevention structure of high-voltage interlocking connector

Abstract

The utility model relates to a connector structure. A finger contact prevention structure of a high-voltage interlocking connector comprises a female end insulating shell, a male end insertion hole is formed in the center of the female end insulating shell, a plurality of female end contact prevention pieces are arranged at the end of the female end insulating shell, finger contact prevention holes are formed in the female end contact prevention pieces, and the female end contact prevention pieces are connected with elastic control pieces. The anti-contact finger hole is smaller than the male end insertion hole under the elastic force effect of the elastic control piece, and the end part of the female end insulation shell is also provided with a guide stop structure which guides and limits the female end anti-contact piece. The utility model provides the finger contact prevention structure of the high-voltage interlocking connector, which is simple in structure, convenient to assemble, practical in dynamic protection mechanism and low in cost; the technical problems that in the prior art, an anti-touch finger structure of a high-voltage interlocking connector is complex, the number of manufacturing process steps is large, and cost is high are solved.

Description

Technical Field

[0001] This utility model relates to a connector structure, and more particularly to an anti-finger-touch structure for a high-voltage interlock connector. Background Technology

[0002] With the rapid development of new energy vehicles and energy storage industries, the requirements for high-voltage and high-current connectors are increasing. In addition to good sealing performance, they also need to be easy to install and use, as well as safe and reliable. As the voltage and current requirements increase, the size of related connector products has also increased, and anti-finger contact requirements have become an essential safety feature.

[0003] Most existing finger-touch prevention structures adopt a "needle-in-needle" design, which means that a needle bar with an insulated head is installed in the center of the power pin. The needle bar protrudes above the outer perimeter of the power pin, thereby preventing fingers from touching the metal pin and playing a safety protection role.

[0004] The existing "needle-in-needle" structure design has the following problems: (1) the coaxiality of the inner and outer needles needs to be processed with high precision; (2) the assembly gap of multiple processes (pressing, calibration, fixing) requires interference extrusion, and the control of the extrusion amount is extremely precise; (3) high-precision processing and assembly lead to increased costs; (4) it cannot be disassembled after assembly, which increases the cost of defects. Summary of the Invention

[0005] This utility model provides a simple, easy-to-assemble, practical dynamic protection mechanism, and low-cost anti-finger contact structure for high-voltage interlock connectors; it solves the technical problems of complex anti-finger contact structures, multiple manufacturing steps, and high costs in existing high-voltage interlock connectors.

[0006] The above-mentioned technical problem of this utility model is solved by the following technical solution: a finger-proof structure for a high-voltage interlock connector, including a female end insulating shell, a male end insertion hole at the center of the female end insulating shell, and several female end anti-touch plates at the ends of the female end insulating shell, forming anti-touch holes. The female end anti-touch plates are connected to an elastic control element, and the anti-touch holes are smaller than the male end insertion holes under the elastic force of the elastic control element. A guide stop structure is also provided at the ends of the female end insulating shell, guiding and limiting the female end anti-touch plates. Under the pressure of the elastic control element, the female end anti-touch plates are pushed towards the center, and the guide stop structure at the ends of the female end insulating shell effectively prevents the female end anti-touch plates from falling off the female end insulating shell. When the male end is not inserted, the diameter of the anti-touch hole formed by the female end anti-touch plate is less than 9mm. When a male end is inserted, the male end opens the female end anti-touch plate, and the female end anti-touch plate does not affect the insertion of the male end. This forms a dynamic protection mechanism with good safety, simple structure, and low cost.

[0007] Preferably, a female end anti-contact cover is provided on the outer end of the female end insulating shell, and the female end anti-contact cover is located outside the female end anti-contact sheet. The female end anti-contact cover protects the internal structure of the female end anti-contact sheet and improves the stability of the overall structure.

[0008] Preferably, the female end anti-contact cover has a central insertion hole with a diameter not less than that of the male end insertion hole. A positioning post is provided on the end face of the female end anti-contact cover, and a positioning hole is provided at the end of the female end insulating shell. The female end anti-contact cover also has a snap-fit ​​mechanism that mates with the female end insulating shell. This facilitates the installation and removal of the female end anti-contact cover.

[0009] Preferably, the female end anti-contact pieces are evenly distributed on the end face of the female end insulating shell, and an elastic control element receiving cavity is formed in the center of the female end anti-contact pieces. A spring is installed in the elastic control element receiving cavity, and the diameter of the anti-touch finger hole formed by the female end anti-contact pieces varies with the force of the spring, meeting the hole diameter requirements under different conditions. The female end anti-contact pieces are evenly distributed and have a simple structure.

[0010] Preferably, guide grooves are provided on both sides of the cavity accommodating the elastic control component, and a guide rail that mates with the guide grooves is provided on the end face of the female end insulating shell. This allows the female end anti-contact piece to move smoothly and stably.

[0011] Preferably, the end face of the female end insulating shell is provided with a stop protrusion, and a female end anti-contact piece receiving groove is formed between adjacent stop protrusions. The free ends of the two sides of the female end anti-contact piece receiving groove form an inward stop surface, and a guide rail is formed at the bottom of the female end anti-contact piece receiving groove. The stop surface narrows the opening of the female end anti-contact piece receiving groove, thereby effectively preventing the female end anti-contact piece from falling off.

[0012] Preferably, the stop protrusion has a positioning hole and a buckle protrusion on its outer side.

[0013] Preferably, the elastic control element is a spring, with one end of the spring abutting against the side wall of the anti-touch plate receiving groove on the female end insulating shell, and the other end of the spring abutting against the bottom of the elastic control element receiving cavity on the female end anti-touch plate.

[0014] Preferably, the outer surface of the female anti-contact piece forms a guide slope. The guide slope reduces the insertion force, allowing the male end to be better inserted into the female end.

[0015] Therefore, the anti-touch finger structure of the high-voltage interlock connector of this utility model has the following advantages:

[0016] 1. Reduce the machining precision of anti-finger-touch parts, thereby reducing part costs;

[0017] 2. Simplified assembly process, improved production efficiency, and reduced assembly costs;

[0018] 3. The structure is detachable, so when a product is defective, the defective parts can be disassembled and the good parts can be kept, effectively reducing the cost of defects. Attached Figure Description

[0019] Figure 1 This is a three-dimensional diagram of the anti-touch finger structure of a high-voltage interlock connector.

[0020] Figure 2 yes Figure 1 A 3D view after removing the protective cover from the female end.

[0021] Figure 3 yes Figure 2 A 3D view of the removal of the female end anti-contact sheet.

[0022] Figure 4 yes Figure 1 A 3D view of the anti-touch cover on the middle mother end.

[0023] Figure 5 yes Figure 2 A 3D view of the anti-touch plate at the middle mother end. Detailed Implementation

[0024] The technical solution of the utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0025] Example:

[0026] like Figure 1 As shown, a finger-proof structure for a high-voltage interlock connector includes a female insulating shell 1 with a male insertion hole 15 at its center. Four fan-shaped female finger-proof pieces 3 are evenly distributed on the end face of the female insulating shell 1. Springs 6 are installed on the female finger-proof pieces 3, pushing them towards the center. A female finger-proof cover 2 is installed on the end face of the female insulating shell 1 via a snap-fit ​​structure, covering the female finger-proof pieces 3 at the end of the female insulating shell 1.

[0027] like Figure 2 and 3 As shown, four stop protrusions 4 are formed on the end face of the female end insulating shell 1. The stop protrusions 4 are fan-shaped, and a female end anti-contact piece receiving groove 16 is formed between adjacent stop protrusions 4. Parallel guide rails 7 are formed at the bottom of the female end anti-contact piece receiving groove 16, and a guide groove 14 that mates with the guide rails is provided on the bottom surface of the female end anti-contact piece 3. An inward stop surface 5 is formed at the ends of the two sides of the female end anti-contact piece receiving groove 16. When the female end anti-contact piece 3 is placed in the female end anti-contact piece receiving groove 16, the two inclined surfaces of the female end anti-contact piece 3 abut against the stop surface 5 and cannot continue to slide down, thereby preventing the female end anti-contact piece 3 from falling off.

[0028] A positioning hole 8 is provided on the stop protrusion 4, and a buckle protrusion 9 is formed on the outer side of the stop protrusion 4.

[0029] like Figure 4 As shown, the upper surface of the female anti-contact piece 3 is formed with a guide slope 17 to facilitate the insertion of the male end. The bottom of the female anti-contact piece 3 has an elastic control element receiving cavity 13, located between two guide grooves 14. A spring 6 is installed inside the elastic control element receiving cavity 13, with one end of the spring 6 abutting against the groove wall of the female anti-contact piece receiving groove 16, and the other end abutting against the bottom of the elastic control element receiving groove 13. The spring 6 continuously pushes the female anti-contact piece 3 towards the center.

[0030] like Figure 5 As shown, the bottom surface of the female end anti-contact cover 2 is formed with positioning posts 11 in the same number as the positioning holes of the stop protrusion. Four connecting lugs 12 are formed on the female end anti-contact cover 2. The connecting lugs 12 are provided with buckles 10. The buckles 19 cooperate with the buckle protrusions 9 to fix the female end anti-contact cover 2 and the female end insulating shell 1.

[0031] In use, when no male end is inserted, the spring pushes the female anti-touch plate towards the center. The diameter of the anti-finger hole formed by the female anti-touch plate is approximately 9mm, significantly smaller than the standard 12mm, thus providing finger protection. When the male end needs to be inserted, it compresses the spring, and the female anti-touch plate, guided by the guide rail, retracts into the female anti-touch plate receiving groove, without affecting the insertion of the male end.

[0032] The specific embodiments described herein are merely illustrative of the concept of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A finger-proof structure for a high-voltage interlock connector, comprising a female insulating shell, wherein a male insertion hole is provided at the center of the female insulating shell, characterized in that: Several female anti-touch plates are provided at the end of the female end insulating shell. The female end anti-touch plates form anti-touch finger holes. The female end anti-touch plates are connected to elastic control elements. Under the elastic force of the elastic control elements, the anti-touch finger holes are smaller than the male end insertion holes. A guide stop structure is also provided at the end of the female end insulating shell. The guide stop structure guides and limits the female end anti-touch plates.

2. The anti-finger contact structure of a high-voltage interlock connector according to claim 1, characterized in that: The female end insulating shell is provided with a female end anti-contact cover at its end, and the female end anti-contact cover is located outside the female end anti-contact sheet.

3. The anti-finger contact structure of a high-voltage interlock connector according to claim 2, characterized in that: The female end anti-contact cover has a central insertion hole with a diameter not less than that of the male end insertion hole. A positioning post is provided on the end face of the female end anti-contact cover, and a positioning hole is provided at the end of the female end insulating shell. The female end anti-contact cover is provided with a buckle that cooperates with the female end insulating shell.

4. The anti-finger contact structure of a high-voltage interlock connector according to claim 1, 2, or 3, characterized in that: The female end anti-contact plates are evenly distributed on the end face of the female end insulating shell, and an elastic control element receiving cavity is formed in the center of the female end anti-contact plates.

5. The anti-finger contact structure of a high-voltage interlock connector according to claim 4, characterized in that: Guide grooves are provided on both sides of the cavity containing the elastic control component, and a guide rail that mates with the guide grooves is provided on the end face of the female end insulating shell.

6. The anti-finger contact structure of a high-voltage interlock connector according to claim 1, 2, or 3, characterized in that: The end face of the female end insulating shell is provided with a stop protrusion, and a female end anti-touch plate receiving groove is formed between adjacent stop protrusions. The free ends of the two sides of the female end anti-touch plate receiving groove form an inward stop surface, and a guide rail is formed at the bottom of the female end anti-touch plate receiving groove.

7. The anti-finger contact structure of a high-voltage interlock connector according to claim 6, characterized in that: The stop protrusion is provided with a positioning hole, and a buckle protrusion is provided on the outer side of the stop protrusion.

8. The anti-touch finger structure of a high-voltage interlock connector according to claim 1, 2, or 3, characterized in that: The elastic control element is a spring. One end of the spring abuts against the side wall of the anti-touch plate receiving groove on the female end insulating shell, and the other end of the spring abuts against the bottom of the elastic control element receiving cavity on the female end anti-touch plate.

9. The anti-finger contact structure of a high-voltage interlock connector according to claim 1, 2, or 3, characterized in that: The outer surface of the female end anti-touch plate forms a guide slope.

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