Electric connector

Abstract

An electric connector comprises a rubber core, a plurality of terminal sheets arranged in the rubber core at intervals and a turning cover, a slot is arranged in the rubber core, a clamping block used for being connected with a flat cable in a clamping mode is arranged in the slot, a limiting component is arranged in the slot and comprises a limiting cavity formed in the turning cover, an L-shaped limiting piece is arranged in the limiting cavity, and the limiting piece is connected with the clamping block in a clamping mode. A spring and a limiting plate are sequentially arranged in the limiting cavity, three steel balls are arranged at the bottom of the limiting plate, a gap allowing the limiting piece to pass through is formed among the three steel balls, and after the limiting piece stretches into the limiting cavity, the three steel balls extrude the limiting piece to form tight fit and cannot move under the elastic force action of the spring; at the moment, the bottom of the limiting part is also in close fit with the flat cable to prevent the flat cable from retreating, the arranged limiting part can limit the flat cable when the flat cable is inserted into the insertion groove, the limiting part is pushed to slide upwards to enter the limiting cavity, and therefore the bottom of the limiting part abuts against the flat cable, and the effect of preventing the flat cable from retreating is achieved.

Description

Technical Field

[0001] The utility model relates to an electric connector, belonging to the field of electrical components. Background Art

[0002] In various electronic devices, electrical connectors composed of FPC (flexible printed circuit board), FFC (flexible flat cable) or coaxial cable are widely used, which are matched with printed circuit board connectors (socket connectors). In some application environments, the socket connector installed on the circuit board is docked with the electrical connector and fits with each other. When the two connectors fit with each other, an operating lever is usually set on the electrical connector, and the operating lever is rotated to keep it outside the socket connector, so as to achieve the fit-holding state between the electrical connector and the socket connector. The FPC connector includes a rubber core, a flap, a terminal piece, and a welding piece. The structural design of the existing FPC connector is unreasonable, the contact between the terminal piece and the cable is unreliable, and there is a poor contact phenomenon, which reduces the service life of the FPC connector and deteriorates the use effect. Utility Model Content

[0003] The purpose of the utility model is to provide an electrical connector in order to overcome the shortcomings and deficiencies of the prior art.

[0004] An electrical connector, comprising a rubber core, a plurality of terminal pieces arranged in intervals in the rubber core, and a flip cover, wherein a slot is provided in the rubber core, a card block for connecting with a cable is provided in the slot, a limiting component is provided in the slot, the limiting component comprises a limiting cavity provided on the flip cover, an L-shaped limiting component is provided in the limiting cavity, a spring and a limiting plate are provided in the limiting cavity in sequence, three steel balls are provided at the bottom of the limiting plate, a gap for the limiting component to pass through is formed between the three steel balls, and after the limiting component extends into the limiting cavity, the three steel balls are squeezed into the limiting cavity under the elastic force of the spring. The parts form a tight fit and cannot move. At this time, the bottom of the limiting part also forms a tight fit with the cable to prevent the cable from withdrawing. The set limiting component can limit the cable when the cable is inserted into the slot, and the limiting part is pushed to slide upward into the limiting cavity. After it is in place, the steel ball is pressed by the spring to limit the limiting part. The steel ball abuts against the outer wall of the limiting part to form a tight fit and cannot move, so that the bottom of the limiting part abuts against the cable, thereby preventing the cable from withdrawing, improving the service life and use effect of the product, and preventing the electrical connector and the cable from loosening and loose contact.

[0005] Furthermore, the limiting member includes a matching portion that matches with the steel ball and a limiting portion arranged at the bottom of the matching portion, and the matching portion is provided with an arc groove for clamping with the steel ball. The steel ball cooperates with the groove on the matching portion to limit the limiting member, and by setting the arc grooves at different heights, the length of the limiting member extending into the limiting cavity can be controlled, thereby matching with cables of different heights for limiting, and having high flexibility.

[0006] Preferably, an anti-retreat layer for increasing the friction between the limiting portion and the cable is provided at the bottom. The material of the anti-retreat layer is rubber. The anti-retreat layer can enhance the anti-retreat strength. The material of the anti-retreat layer can also be replaced with other materials that can form greater friction with the cable. Rubber is easy to obtain and has a low cost, which can reduce the production cost of the product.

[0007] Furthermore, the bottom of the limiting cavity is in an arc shape that matches the curvature of the steel ball. The arc shape enables the steel ball to adjust its position to prevent it from being stuck in the limiting cavity and unable to form a tight fit with the limiting member, which has good practicality.

[0008] Preferably, one end of the spring is fixed to the bottom of the limit cavity, and the other end is fixed to the limit plate. The elastic force provided by the spring can press the limit plate toward the side of the steel ball, so that it presses the limit piece to prevent looseness and mismatch between the two.

[0009] Furthermore, the limiting plate is provided with a through hole for the limiting member to extend therein, and the limiting member extends into the top of the limiting cavity through the through hole.

[0010] Furthermore, the limit cavity is connected to a connecting channel, a limit block is provided on the limit piece, and a limit groove matching the limit block is provided in the connecting channel. The limit block and the limit groove cooperate to limit the position of the limit piece when the cable is not inserted into the slot, thereby preventing it from sliding out of the limit cavity and causing structural failure.

[0011] The beneficial effects of the utility model are as follows: the set limiting component can limit the cable when the cable is inserted into the slot, the limiting component is pushed to slide upward into the limiting cavity, and after it is in place, the spring presses the steel ball to limit the limiting component, and the steel ball abuts against the outer wall of the limiting component to form a tight fit and cannot move, so that the bottom of the limiting component abuts against the cable, forming an effect of preventing the cable from withdrawing, thereby improving the service life and use effect of the product, and preventing the electrical connector and the cable from loosening and loose contact. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, without paying creative labor, other drawings obtained based on these drawings still belong to the scope of the utility model.

[0013] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0014] Figure 2 This is a cross-sectional view of the main structure when the cable is not inserted;

[0015] Figure 3 for Figure 2 A magnified detail of the center point A;

[0016] Figure 4 This is a cross-sectional view of the main structure when the cable is inserted;

[0017] Figure 5 for Figure 4 A magnified view of the detail at B in the middle;

[0018] In the figure, 1, rubber core; 11, slot; 2, flip cover; 3, limiting component; 31, limiting cavity; 311, connecting channel; 312, limiting groove; 32, limiting member; 321, matching part; 322, arc groove; 323, limiting part; 324, anti-retreat layer; 325, limiting block; 33, spring; 34, limiting plate; 341, through hole; 35, steel ball; 4, wiring. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings.

[0020] It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are for distinguishing two non-identical entities with the same name or non-identical parameters. It can be seen that "first" and "second" are only for the convenience of expression and should not be understood as limitations on the embodiments of the present invention. The subsequent embodiments will not explain this one by one.

[0021] The directions and positions mentioned in the present invention, such as "upper", "lower", "front", "back", "left", "right", "inside", "outside", "top", "bottom", "side", etc., are only for reference to the directions or positions of the drawings. Therefore, the directions and positions used are used to explain and understand the present invention, but not to limit the scope of protection of the present invention.

[0022] like Figure 1-5As shown, an embodiment of an electrical connector of the utility model comprises a rubber core 1, a plurality of terminal pieces arranged in intervals in the rubber core 1 and a flip cover 2, wherein a slot 11 is provided in the rubber core 1, a card block for clamping with a flat cable 4 is provided in the slot 11, a limiting portion 323 piece 3 is provided in the slot 11, and the limiting portion 323 piece 3 comprises a limiting cavity 31 provided on the flip cover 2, an L-shaped limiting member 32 is provided in the limiting cavity 31, a spring 33 and a limiting plate 34 are provided in the limiting cavity 31 in sequence, three steel balls 35 are provided at the bottom of the limiting plate 34, a gap for the limiting member 32 to pass through is formed between the three steel balls 35, and the limiting member 32 extends into the limiting cavity 31 and is elastically engaged with the spring 33. The three steel balls 35 are used to squeeze the limiting member 32 to form a tight fit and cannot move. At this time, the bottom of the limiting member 32 also forms a tight fit with the cable 4 to prevent the cable 4 from withdrawing. The set limiting portion 323 can limit the cable 4 when the cable 4 is inserted into the slot 11. The limiting member 32 is pushed to slide upward into the limiting cavity 31. After it is in place, the spring 33 is used to press the steel balls 35 to limit the limiting member 32. The steel balls 35 abut against the outer wall of the limiting member 32 to form a tight fit and cannot move, so that the bottom of the limiting member 32 abuts against the cable 4, forming an effect of preventing the cable 4 from withdrawing, thereby improving the service life and use effect of the product, and preventing the electrical connector and the cable 4 from loosening and loose contact.

[0023] The limiting member 32 includes a matching portion 321 that matches with the steel ball 35 and a limiting portion 323 arranged at the bottom of the matching portion 321. The matching portion 321 is provided with an arc groove 322 for engaging with the steel ball 35. The steel ball 35 cooperates with the groove on the matching portion 321 to limit the limiting member 32, and by setting the arc groove 322 at different heights, the length of the limiting member 32 extending into the limiting cavity 31 can be controlled, so as to match the cables 4 of different heights for limiting, and has high flexibility.

[0024] An anti-retreat layer 324 for increasing the friction between the limiting portion 323 and the cable 4 is provided at the bottom. The material of the anti-retreat layer 324 is rubber. The anti-retreat layer 324 can enhance the anti-retreat strength. The material of the anti-retreat layer 324 can also be replaced with other materials that can form a greater friction with the cable 4. Rubber is easy to obtain and has a low cost, which can reduce the production cost of the product.

[0025] The bottom of the limiting cavity 31 is in an arc shape that matches the shape of the steel ball 35. The arc shape enables the steel ball 35 to adjust its position to prevent it from being stuck in the limiting cavity 31 and unable to form a tight fit with the limiting member 32, which has good practicality.

[0026] One end of the spring 33 is fixed to the bottom of the limit cavity 31, and the other end is fixed to the limit plate 34. The elastic force provided by the spring 33 can press the limit plate 34 toward the side of the steel ball 35, so that it presses the limit member 32 to prevent looseness and mismatch between the two.

[0027] The limiting plate 34 is provided with a through hole 341 for the limiting member 32 to extend into, and the limiting member 32 extends into the top of the limiting cavity 31 through the through hole 341 .

[0028] The limiting cavity 31 is connected to a connecting channel 311, a limiting block 325 is provided on the limiting member 32, and a limiting groove 312 matching the limiting block 325 is provided in the connecting channel 311. The limiting block 325 cooperates with the limiting groove 312 to limit the position of the limiting member 32 when the cable 4 is not inserted into the slot 11, so as to prevent it from sliding out of the limiting cavity 31 and causing structural failure.

[0029] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope covered by the present invention.

[0030] Although the present invention has been described with reference to several specific embodiments, it should be understood that the present invention is not limited to the specific embodiments disclosed. The present invention is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

Claims

1. An electrical connector, characterized in that: It includes a rubber core, a plurality of terminal pieces arranged at intervals in the rubber core and a flip cover, wherein a slot is provided in the rubber core, a limiting component is provided in the slot, the limiting component includes a limiting cavity provided on the flip cover, an L-shaped limiting component is provided in the limiting cavity, a spring and a limiting plate are provided in the limiting cavity in sequence, three steel balls are provided at the bottom of the limiting plate, a gap is formed between the three steel balls for the limiting component to pass through, after the limiting component extends into the limiting cavity, the elastic force of the spring causes the three steel balls to squeeze the limiting component to form a tight fit and cannot move, and at this time, the bottom of the limiting component also forms a tight fit with the cable to prevent the cable from withdrawing.

2. The electrical connector according to claim 1, wherein: The limiting member comprises a matching portion matched with the steel ball and a limiting portion arranged at the bottom of the matching portion, and the matching portion is provided with an arc groove for clamping with the steel ball.

3. The electrical connector according to claim 2, wherein: An anti-recoil layer is provided at the bottom of the limiting portion for increasing the friction between the limiting portion and the cable, and the material of the anti-recoil layer is rubber.

4. The electrical connector according to claim 1, wherein: The bottom of the limiting cavity is in an arc shape matching the curvature of the steel ball.

5. The electrical connector according to claim 1, wherein: One end of the spring is fixed to the bottom of the limiting cavity, and the other end is fixed to the limiting plate.

6. The electrical connector according to claim 5, wherein: The limiting plate is provided with a through hole for the limiting member to extend into.

7. The electrical connector according to claim 1, wherein: The limiting cavity is connected with a connecting channel, the limiting member is provided with a limiting block, and the connecting channel is provided with a limiting groove matching the limiting block.

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