Connector with compact structure

Abstract

The utility model relates to a connector with compact structure in the connector field, comprising a plastic cement main body and a plurality of terminals with the same structure, the front end of the plastic cement main body is provided with a liftable front cover, the upper end of the power connection end is a second power connection part, the top of the second power connection part extends upwards to form a spacing boss, and the spacing boss is provided with an opening. An inner arc-shaped groove is formed in the bottom of the end, close to the front cover, of the limiting boss, a plurality of connecting grooves used for containing the second power connection parts in a paired mode are formed in the end, close to the plastic body, of the front cover, a rotating shaft horizontally arranged and used for being clamped into the inner arc-shaped groove in a paired mode is arranged at an opening of each connecting groove, and the surface of each rotating shaft is of an arc-shaped structure matched with the inner arc-shaped groove in shape. Through the connecting structure of the rotating shaft and the inner arc-shaped groove, the connection between the front cover and the terminal is more compact, the connection between the rotating shaft and the terminal is more stable, and structures for assisting steering do not need to be additionally arranged at the left tail end and the right tail end of the front cover, so that the overall length and height of the connector can be reduced; the whole connector with the same function can be made into a shorter and flatter structure.

Description

Technical Field

[0001] The utility model relates to the field of connectors, in particular to a connector with a compact structure. Background Art

[0002] FPC connectors are widely used in electronic devices, mainly in LCD displays, scanners, mobile phones, tablet computers and other electronic devices, to achieve signal connection or transmission between various functional modules within such devices or with external devices.

[0003] The front-flip FPC connector includes a plastic body and terminals. The front end of the plastic body is provided with a flip-up front cover. When the front cover is flipped up, the FPC can be inserted and connected. After the FPC is connected, the front cover is pressed down to tighten the FPC.

[0004] In the prior art, such as Figure 1 and Figure 2 As shown, the front cover 2 is installed through the rotating shaft 4 located at its left and right ends. When assembling the front cover 2, the front cover 2 is directly aligned and pressed into the front end of the plastic body 1, so that the rotating shaft 4 is inserted into the left and right ends of the plastic body 1 by interference fit. After the assembly is completed, the rotating shaft 4 can rotate freely along the left and right ends of the plastic body 1. In addition, the front cover 2 is provided with an escape groove for matching and inserting the terminal 3, and an auxiliary shaft 5 for sliding the terminal 3 is provided at the opening of the escape groove.

[0005] Based on the above structure, the connector of the prior art also has the following defects: 1) Setting the rotating shaft 4 at the left and right ends of the front cover 2 will increase the overall length and height of the connector, and the overall space occupied is relatively large; 2) The connection between the auxiliary shaft 5 and the terminal 3 is limited by the structure, and the connection area between the terminal 3 and the auxiliary shaft 5 is limited and can only be made into a shallow groove shape, resulting in the contact structure between the terminal 3 and the auxiliary shaft 5 not being compact enough, and the connection stability is not good, which makes the auxiliary shaft 5 prone to axial expansion during the rotation process of the rotation position, thereby causing it to easily loosen. Utility Model Content

[0006] The purpose of the utility model is to solve the above defects and provide a connector with a compact structure. By setting a limiting boss and an inner arc groove, the connection between the front cover and the terminal can be made more compact, and the connection between the rotating shaft and the terminal can be made more stable, thereby solving the technical problems in the prior art that the overall space occupied is large after the front cover is installed and the connection between the front cover and the terminal is not stable enough.

[0007] The purpose of the utility model is achieved by the following methods:

[0008] A compact connector includes a plastic body and a plurality of terminals with the same structure. The front end of the terminal is a power connection end, the rear end of the terminal is a limit end, the front end of the plastic body is an insertion interface for mating and inserting an FPC, a positioning groove for mating and installing the terminal is reserved inside the plastic body, the terminal is inserted from the rear end of the plastic body along the positioning groove, so that the power connection end of the terminal extends to the insertion interface, the front end of the plastic body is provided with a front cover that can be lifted, the lower end of the power connection end is a first power connection part, the upper end of the power connection end is a second power connection part, and the second power connection part is located above the first power connection part The top of the second power connection part extends upward to form a limiting boss, and one end of the limiting boss close to the plastic body can be clamped on the top of the plastic body, and an inner arc groove is provided at the bottom of one end of the limiting boss close to the front cover, and the opening of the inner arc groove faces the first power connection part. The end of the front cover close to the plastic body is provided with a plurality of connecting grooves for matching and accommodating the second power connection part, and the opening of the connecting groove is provided with a horizontally arranged rotating shaft for matching and clamping into the inner arc groove, and the surface of the rotating shaft is an arc-shaped structure matched with the shape of the inner arc groove, so that the front cover can be lifted or pressed down along the rotating shaft.

[0009] Furthermore, the left and right ends of the front cover are provided with limit blocks extending toward the plastic body, and the left and right ends of the plastic body are provided with support platforms for supporting the limit blocks. After the front cover is installed, the stability of the front cover installation can be increased under the support of the support platforms.

[0010] Furthermore, the left and right ends of the plastic body are provided with fixing holes and fixing plates, the fixing plates extend along the front end of the fixing holes to the rear end of the plastic body and are clamped into the fixing holes, and the front end of the fixing plates extends upward and bends inward to form a fixing portion for limiting the limit block. The fixing portion blocks the front of the limit block and can be used to limit the forward movement of the limit block, thereby ensuring that the front cover will not be loosened after installation, and increasing the stability of the front cover installation.

[0011] Furthermore, the bottom of the fixing plate is a pad portion for welding and fixing.

[0012] Furthermore, a limiting protrusion extending upward is provided at the top of one end of the limiting end away from the power connection end, the limiting protrusion is in close contact with the rear end surface of the plastic body, and the limiting boss and the limiting protrusion clamp the front and rear end surfaces of the top of the plastic body respectively. By providing the limiting boss and the limiting protrusion to clamp and limit from the front and rear end surfaces of the top of the plastic body respectively, the stability of the terminal installation is ensured, and the terminal is not easy to loosen after installation.

[0013] Furthermore, a welding portion extending backwards is provided at the bottom of an end of the limiting end away from the power connection end.

[0014] Furthermore, the rotating shaft and the front cover are formed in one piece.

[0015] Furthermore, a guide slope which is used to assist the insertion into the positioning groove and is inclined downward is provided at one end of the second power connection part close to the front cover. With the assistance of the guide slope, the terminal can be quickly and smoothly inserted into the positioning groove and clamped and positioned.

[0016] The beneficial effects produced by the utility model are as follows: a limiting boss and an inner arc groove extending upward are arranged on the second power connection part, and the rotating shaft is matched and inserted into the inner arc groove when the front cover is installed. The limiting boss can increase the depth of the inner arc groove, ensuring that the rotating shaft can be stably inserted into the inner arc groove, and at the same time, the rotating shaft is not easy to expand outward in the rotation position, and the inner arc groove can hook the rotating shaft, so that the rotating shaft is not easy to loosen. Through the connection structure of the rotating shaft and the inner arc groove, the connection between the front cover and the terminal can be made more compact, and the connection between the rotating shaft and the terminal can be made more stable, and there is no need to set a structure for auxiliary steering at the left and right ends of the front cover, thereby reducing the overall length and height of the connector, so that the connector with the same function can be made into a shorter and flatter structure as a whole. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure decomposition of the prior art of the utility model in a state where the front cover is lifted up;

[0018] Figure 2 It is a cross-sectional view of the front cover in the prior art of the utility model in a pressed down state;

[0019] Figure 3 It is a three-dimensional structural schematic diagram of a compact connector of the utility model in a state where a middle front cover is pressed down;

[0020] Figure 4 It is a three-dimensional structural schematic diagram of a compact connector of the utility model with its middle front cover lifted up;

[0021] Figure 5 It is a schematic diagram of the structure decomposition of a compact connector of the utility model in a state where the middle front cover is pressed down;

[0022] Figure 6 This is a cross-sectional view of a compact connector terminal before being inserted into a plastic body of the utility model;

[0023] Figure 7 It is a cross-sectional view of a compact connector of the utility model in which a terminal is clamped into a rotating shaft;

[0024] Figure 1 and Figure 2 In the figure, 1- plastic body, 2- front cover, 3- terminal, 4- shaft, 5- auxiliary shaft. Figure 3-Figure 7In the figure, 1-plastic body, 2-front cover, 201-rotating shaft, 202-connecting groove, 203-limiting block, 3-terminal, 301-first power connection part, 302-second power connection part, 303-limiting boss, 304-inner arc groove, 305-guide slope, 306-limiting protrusion, 4-fixing plate, 401-fixing part. DETAILED DESCRIPTION

[0025] The present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0026] In this embodiment, refer to Figure 3-Figure 7 A compact connector specifically implemented includes a plastic body 1 and a plurality of terminals 3 of the same structure. The front end of the terminal 3 is a power connection end, the rear end of the terminal 3 is a limit end, the front end of the plastic body 1 is an insertion interface for mating and inserting the FPC, and a positioning groove for mating and installing the terminal 3 is reserved inside the plastic body 1. The terminal 3 is inserted from the rear end of the plastic body 1 along the positioning groove, such as Figure 6 As shown, the electrical connection end of the terminal 3 is extended to the insertion interface.

[0027] The front end of the plastic body 1 is provided with a liftable front cover 2, the lower end of the power connection end is a first power connection part 301, the upper end of the power connection end is a second power connection part 302, the second power connection part 302 is located above the first power connection part 301, and the top of the second power connection part 302 extends upward to form a limiting boss 303, and the end of the limiting boss 303 close to the plastic body 1 can be clamped on the top of the plastic body 1, and an inner arc groove 304 is provided at the bottom of the end of the limiting boss 303 close to the front cover 2, such as Figure 7 As shown in FIG. 3 , the opening of the inner arc-shaped groove 304 faces the first power connection portion 301. Figure 6 As shown, the second power connection part 302 is provided with a guide slope 305 which is used to assist the insertion into the positioning groove and is inclined downward. With the assistance of the guide slope 305, the terminal 3 can be quickly and smoothly inserted into the positioning groove and clamped and positioned.

[0028] The front cover 2 is provided with a plurality of connection grooves 202 at one end close to the plastic body 1 for matching and accommodating the second power connection part 302. The opening of the connection groove 202 is provided with a rotating shaft 201 which is arranged horizontally and is used to match and snap into the inner arc groove 304. The rotating shaft 201 and the front cover 2 are formed by integral molding. The surface of the rotating shaft 201 is an arc-shaped structure matching the shape of the inner arc groove 304, so that the front cover 2 can be lifted or pressed down along the rotating shaft 201. The left and right ends of the front cover 2 are provided with limit blocks 203 extending toward the direction of the plastic body 1. The left and right ends of the plastic body 1 are provided with support platforms for supporting the limit blocks 203. After the front cover 2 is installed, the stability of the installation of the front cover 2 can be increased under the support of the support platform.

[0029] like Figure 3As shown, a welding portion extending backward is provided at the bottom of one end of the limiting end away from the power connection end, and the limiting end is welded to the PCB through the welding portion. A limiting protrusion 306 extending upward is provided at the top of one end of the limiting end away from the power connection end, and the limiting protrusion 306 is closely attached to the rear end surface of the plastic body 1, and the limiting boss 303 and the limiting protrusion 306 clamp the front and rear end surfaces of the top of the plastic body 1 respectively. By setting the limiting boss 303 and the limiting protrusion 306 to clamp and limit from the front and rear end surfaces of the top of the plastic body 1 respectively, the stability of the installation of the terminal 3 is ensured, and the terminal 3 is not easy to loosen after installation.

[0030] In addition, if Figure 3-Figure 5 As shown, both left and right ends of the plastic body 1 are provided with fixing holes and fixing plates 4, the fixing plates 4 extend along the front end of the fixing holes to the rear end of the plastic body 1 and are clamped into the fixing holes, and the front end of the fixing plates 4 extends upward and bends inward to form a fixing portion 401 for limiting the limit block 203. The fixing portion 401 blocks the front of the limit block 203 and can be used to limit the forward movement of the limit block 203, thereby ensuring that the front cover 2 will not be loose after installation, and increasing the stability of the installation of the front cover 2. The bottom of the fixing plate 4 is a pad portion for welding and fixing, and it is welded to the PCB through the pad portion.

[0031] The connector assembly process of this embodiment is as follows: first, the terminal 3 is inserted from the rear end of the plastic body 1 along the positioning groove so that the power connection end of the terminal 3 extends to the insertion interface. In this process, with the assistance of the guide bevel 305, the terminal 3 can be quickly and smoothly inserted into the positioning groove and clamped and positioned. At the same time, by setting a limiting boss 303 and a limiting protrusion 306, the front and rear end surfaces of the top of the plastic body 1 are clamped and limited respectively to ensure the stability of the installation of the terminal 3. After installation, the terminal 3 is not easy to loosen. Then, the front cover 2 is inserted into the second power connection part 302 along the front end of the plastic body 1, so that the rotating shaft 201 is matched and inserted into the corresponding inner arc groove 304, and finally, the fixing plate 4 is extended from the front end of the fixing hole to the rear end of the plastic body 1 and clamped into the fixing hole, and the fixing part 401 of the fixing plate 4 is blocked in front of the limit block 203 of the front cover 2, which can be used to limit the forward movement of the limit block 203, thereby ensuring that the front cover 2 will not be loose after installation. At this time, the assembly is completed, and the front cover 2 can be lifted or pressed down along the rotating shaft 201. Through this connection structure of the rotating shaft 201 and the inner arc groove 304, the connection between the front cover 2 and the terminal 3 can be made more compact, and the connection between the rotating shaft 201 and the terminal 3 can be made more stable, and there is no need to set a structure for auxiliary steering at the left and right ends of the front cover 2, thereby reducing the length and height of the connector as a whole, so that the connector with the same function can be made into a shorter and flatter structure as a whole.

[0032] The above contents are further detailed descriptions of the present invention in combination with specific preferred embodiments, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as the protection scope of the present invention.

Claims

1. A compact connector, comprising a plastic body and a plurality of terminals of the same structure, wherein the front end of the terminal is a power connection end, the rear end of the terminal is a limit end, the front end of the plastic body is an insertion interface for mating and inserting an FPC, a positioning groove for mating and installing the terminal is reserved inside the plastic body, the terminal is inserted from the rear end of the plastic body along the positioning groove, so that the power connection end of the terminal extends to the insertion interface, and the front end of the plastic body is provided with a front cover that can be lifted, characterized in that: The lower end of the power connection end is the first power connection part, and the upper end of the power connection end is the second power connection part. The second power connection part is located above the first power connection part. The top of the second power connection part extends upward to form a limiting boss. The end of the limiting boss close to the plastic body can be clamped on the top of the plastic body, and an inner arc groove is provided at the bottom of the end of the limiting boss close to the front cover. The opening of the inner arc groove faces the first power connection part. The end of the front cover close to the plastic body is provided with a plurality of connecting grooves for matching and accommodating the second power connection part. The opening of the connecting groove is provided with a rotating shaft that is horizontally arranged and used to match and snap into the inner arc groove. The surface of the rotating shaft is an arc-shaped structure that matches the shape of the inner arc groove, so that the front cover can be lifted or pressed down along the rotating shaft.

2. A compact connector according to claim 1, characterized in that: The left and right ends of the front cover are provided with limit blocks extending toward the plastic body, and the left and right ends of the plastic body are provided with support platforms for supporting the limit blocks.

3. A compact connector according to claim 2, characterized in that: The left and right ends of the plastic body are both provided with fixing holes and fixing plates. The fixing plates extend along the front end of the fixing holes to the rear end of the plastic body and are clamped into the fixing holes. The front end of the fixing plates extends upward and bends inward to form a fixing portion for limiting the limit block.

4. A compact connector according to claim 3, characterized in that: The bottom of the fixing plate is a pad portion for welding and fixing.

5. A compact connector according to any one of claims 1 to 4, characterized in that: A limiting protrusion extending upward is provided at the top of one end of the limiting end away from the power connection end, the limiting protrusion is in close contact with the rear end surface of the plastic body, and the limiting boss and the limiting protrusion clamp the front and rear end surfaces of the top of the plastic body respectively.

6. A compact connector according to any one of claims 1 to 4, characterized in that: A welding portion extending backwards is provided at the bottom of an end of the limiting end away from the power connection end.

7. A compact connector according to any one of claims 1 to 4, characterized in that: The rotating shaft and the front cover are formed in one piece.

8. A compact connector according to any one of claims 1 to 4, characterized in that: A guide slope inclined downward and used for assisting insertion into the positioning groove is disposed at one end of the second power connection portion close to the front cover.

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