Flexible printed circuit (FPC) connector with stable structure

Abstract

The utility model relates to a flexible printed circuit (FPC) connector with a stable structure in the field of electric connectors, which comprises a base, a rotating pressure plate, a conductive terminal and a grounding elastic sheet, a rotating shaft is arranged on one side of the rotating pressure plate, the conductive terminal is provided with an elastic contact arm which is in running fit with the rotating shaft, and fixing pins which are used for being matched with the rotating shaft are arranged on two sides of the base. The fixing pin comprises an elastic part and a fixing part, the elastic part is matched with the base through a limiting structure, a receding groove is formed in the outer side of the elastic part in a penetrating mode, and fixing structures used for being matched with the fixing part are arranged at the two ends of the rotating shaft. According to the utility model, through the cooperation of the fixing part and the fixing structure, the connection between the rotating shaft and the base is firmer, and the rotating pressure plate is prevented from displacement or loosening, thereby improving the stability and durability of the connector. And through the cooperation of the elastic part and the limiting structure, the fixing pin can be conveniently installed on the base, the assembling efficiency is improved, and meanwhile the error rate in the assembling process is reduced.

Description

Technical Field

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

[0002] FPC connectors are an essential component of electronic devices, enabling electrical connections and signal transmission between circuits, between circuits and devices, and between devices. Grounding springs play a crucial role in FPC connectors. They not only provide an effective grounding path to protect circuits from electromagnetic interference, but also directly impact the stability and reliability of the connection between the FPC connector and the circuit board.

[0003] Existing FPC electrical connectors achieve a flipping and tightening effect through the cooperation of conductive terminals on the base and the transfer plate. However, since the conductive terminals and the transfer plate are connected by elastic contact arms, the contact arms are prone to deformation or even breakage after long-term use or when subjected to external forces. This can cause the transfer plate to loosen or move, affecting the stability of the connection between the connector and the circuit board. Therefore, the present utility model provides an FPC connector that is easy to install and has a stable structure. Summary of the Invention

[0004] The utility model provides an FPC connector with a stable structure, which solves the problem that a transfer plate is easily loosened and affects the connection stability through fixing pins on both sides of a base.

[0005] The purpose of this utility model is achieved by the following methods:

[0006] A structurally stable FPC connector comprises a base, a pressure plate, a conductive terminal, and a grounding spring. A rotating shaft is provided on one side of the pressure plate, and the conductive terminal is provided with an elastic contact arm that rotates with the rotating shaft. Fixing pins for engaging with the rotating shaft are installed on both sides of the base.

[0007] The fixing pin includes an elastic portion and a fixing portion, the elastic portion cooperates with the base through a limiting structure, and an air-avoiding groove is provided on the outer side of the elastic portion;

[0008] Both ends of the rotating shaft are provided with fixing structures for cooperating with the fixing parts.

[0009] Furthermore, one end of the elastic portion is provided with a limiting baffle for removing the fixing pin.

[0010] Furthermore, an anti-slip strip for increasing friction is provided on the outer side of the limit baffle.

[0011] Furthermore, the limiting structure includes a limiting block arranged on the outside of the elastic part and limiting grooves arranged on both sides of the base.

[0012] Furthermore, one end of the limiting block is provided with a guide structure that cooperates with the limiting groove.

[0013] Furthermore, the air-avoiding groove is a straight groove or a cross groove.

[0014] Furthermore, the fixing structure is a groove or a boss.

[0015] The beneficial effects of this utility model include: the cooperation between the fixing portion and the fixing structure strengthens the connection between the rotating shaft and the base, preventing displacement or loosening of the pressure plate, thereby improving the stability and durability of the connector. Furthermore, the cooperation between the elastic portion and the limiting structure allows the fixing pin to be easily installed on the base, improving assembly efficiency and reducing the error rate during the assembly process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of a FPC connector with a stable structure according to the present invention;

[0017] Figure 2 This is a cross-sectional view of a structurally stable FPC connector of the present invention;

[0018] Figure 3 This is a partial cross-sectional view of a structurally stable FPC connector of the present invention;

[0019] Figure 4 It is a partial cross-sectional view of the base in the utility model;

[0020] Figure 5 This is a partial enlarged view of the transfer pressure plate of the utility model;

[0021] Figure 6 This is a schematic structural diagram of the fixing pin in the present utility model;

[0022] The reference numerals in the figure are: 1-base, 1A-limiting groove, 2-turning plate, 2A-rotating shaft, 3-conductive terminal, 3A-elastic contact arm, 4-grounding spring, 5-fixing pin, 6-elastic part, 6A-limiting baffle, 6B-anti-slip strip, 6C-limiting block, 7-fixing part, 8-guide structure, 9-through groove, 10-groove. DETAILED DESCRIPTION

[0023] The present invention will be described in further detail below with reference to the accompanying drawings and specific implementations.

[0024] In this embodiment, refer to Figures 1-6The present invention specifically implements a structurally stable FPC connector, comprising a base 1, a pressure plate 2, a conductive terminal 3, and a grounding spring 4. A rotating shaft 2A is provided on one side of the pressure plate 2, and the conductive terminal 3 is provided with an elastic contact arm 3A that rotates with the rotating shaft 2A. A fixing pin 5 for cooperating with the rotating shaft 2A is installed on both sides of the base 1. The fixing pin 5 includes an elastic portion 6 and a fixing portion 7. The elastic portion 6 cooperates with the base 1 through a limiting structure. A clearance groove is provided on the outer side of the elastic portion 6. Both ends of the rotating shaft 2A are provided with a fixing structure for cooperating with the fixing portion 7. The fixing portion 7 cooperates with the fixing structure to assist the connection between the elastic contact arm 3A and the rotating shaft 2A, making the connection between the rotating shaft 2A and the base 1 more secure, preventing deformation and loosening of the elastic contact arm 3A due to external impact, and thus loosening and displacement of the pressure plate 2, thereby improving the stability and durability of the connector. And through the cooperation of the elastic part 6 and the limiting structure, the fixing pin 5 can be conveniently installed on the base 1. When the fixing pin 5 is inserted into the base 1, the base 1 squeezes the elastic part 6 and deforms it into the air avoidance groove, so that the fixing pin 5 can be easily inserted into the base 1. After reaching the specified position, the elastic part 6 resets, so that the limiting structure contacts the base 1 to achieve fixation, and through the cooperation of the fixing part 7 and the fixing structure, the rotating shaft 2A is firmly fixed, so that the transfer plate 2 maintains a stable connection, thereby improving the assembly efficiency and reducing the error rate during the assembly process.

[0025] Furthermore, one end of the elastic portion 6 is provided with a stopper 6A for removing the fixing pin 5. A non-slip strip 6B is provided on the outside of the stopper 6A to increase friction. During removal, pressing the stopper 6A deforms the elastic portion 6, allowing the fixing pin 5 to be easily removed from the base 1. The non-slip strip 6B enhances the operator's grip during removal of the fixing pin 5 and reduces the inconvenience caused by slipping.

[0026] Among them, the limiting structure includes a limiting block 6C provided on the outside of the elastic part 6 and a limiting groove 1A provided on both sides of the base 1. Through the cooperation between the limiting block 6C and the limiting groove 1A, the fixing pin 5 can be accurately matched with and fixed to the transfer plate 2, and one end of the limiting block 6C is provided with a guide structure 8 that cooperates with the limiting groove 1A. Under the action of the guiding structure 8, the contact between the limiting block 6C and the base 1 is smoother, reducing the impact force caused by direct collision, thereby protecting the elastic part 6 from damage. In addition, the design of the guiding structure 8 also allows the limiting block 6C to have a certain angle adjustment capability when inserted into the limiting groove 1A, which makes it possible to ensure the precise cooperation between the fixing pin 5 and the transfer plate 2 by adjusting the angle even if there is a slight installation deviation during the assembly process.

[0027] The shape of the air avoidance groove is a straight groove 9 or a cross groove. The air avoidance groove ensures that the elastic part 6 has a certain deformation space. The straight groove 9 has a simple structure, is easy to process, and provides more contact area, thereby enhancing the stability between the fixing pin 5 and the base 1, and is particularly suitable for occasions with large loads. However, it also increases the degree of deformation of the elastic part 6 and increases the risk of breakage. The design of the cross groove enables the elastic part 6 to deform evenly, effectively disperses stress, and reduces material fatigue problems caused by local stress concentration. Thus, while maintaining stability, the degree of deformation of the elastic part 6 is reduced. In this embodiment, the air avoidance groove adopts the design of a straight groove 9.

[0028] The fixing structure is a groove 10 or a boss. The shape and size of the groove 10 or the boss are in line with the fixing part 7, and the fixing part 7 is provided with a shaft or hole corresponding to the groove 10 or the boss. According to the use requirements of different connectors, the corresponding groove 10 or boss is selected. In this embodiment, the design of the groove 10 is used to cooperate with the fixing part 7. The design of the groove 10 or the boss needs to consider not only the degree of fit with the fixing part 7, but also to ensure convenience during the assembly process. When the fixing part 7 is a shaft, the inner diameter of the groove 10 should be slightly larger than the outer diameter of the shaft so that the shaft can be easily inserted and fixed. At the same time, the depth of the groove 10 should ensure that the shaft has sufficient supporting force after insertion to avoid affecting the stability of the transfer plate 2. For the boss structure, the aperture of the fixing part 7 should be slightly smaller than the outer diameter of the boss to ensure a tight fit during assembly and provide sufficient friction to prevent loosening.

[0029] The beneficial effects of this utility model are as follows: the cooperation between the fixing portion 7 and the fixing structure strengthens the connection between the rotating shaft 2A and the base 1, preventing displacement or loosening of the transfer plate 2, thereby improving the stability and durability of the connector. Furthermore, the cooperation between the elastic portion 6 and the limiting structure allows the fixing pin 5 to be easily installed on the base 1, improving assembly efficiency and reducing the error rate during the assembly process.

[0030] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention is disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with the profession can make some changes or modifications to equivalent embodiments of the above-disclosed technical contents without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments according to the technology of the present invention, which do not depart from the content of the technical solution of the present invention, are within the scope of the technical solution of the present invention.

Claims

1. A structurally stable FPC connector comprising a base (1), a transfer plate (2), a conductive terminal (3) and a grounding spring (4), characterized in that: A rotating shaft (2A) is provided on one side of the transfer plate (2), the conductive terminal (3) is provided with an elastic contact arm (3A) that rotates with the rotating shaft (2A), and fixing pins (5) for cooperating with the rotating shaft (2A) are installed on both sides of the base (1); The fixing pin (5) comprises an elastic portion (6) and a fixing portion (7); the elastic portion (6) cooperates with the base (1) via a limiting structure; and a clearance groove is provided through the outer side of the elastic portion (6); Both ends of the rotating shaft (2A) are provided with fixing structures for cooperating with the fixing portion (7).

2. The structurally stable FPC connector according to claim 1, characterized in that: One end of the elastic portion (6) is provided with a limiting baffle (6A) for disassembling the fixing pin (5).

3. The structurally stable FPC connector according to claim 2, characterized in that: An anti-slip strip (6B) for increasing friction is provided on the outer side of the limit baffle (6A).

4. A structurally stable FPC connector according to claim 1 or 2, characterized in that: The limiting structure comprises a limiting block (6C) provided on the outside of the elastic portion (6) and limiting grooves (1A) provided on both sides of the base (1).

5. The structurally stable FPC connector according to claim 4, characterized in that: One end of the limiting block (6C) is provided with a guide structure (8) that cooperates with the limiting groove (1A).

6. The structurally stable FPC connector according to claim 1, characterized in that: The air-avoiding groove is a straight through groove (9) or a cross through groove.

7. The structurally stable FPC connector according to claim 1, characterized in that: The fixing structure is a groove (10) or a boss.

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