Flexible printed circuit (FPC) electric connector

Abstract

The utility model provides a flexible printed circuit (FPC) electric connector, which comprises an insulating body, a plurality of terminals accommodated in the insulating body, and a pair of fixing pieces fixed at two ends of the insulating body, the fixing piece is provided with an elastic base part, a guide sheet integrally extending upwards from the base part, a U-shaped inflection arm extending forwards from the rear side of the base part, and a fixing arm extending forwards from the inflection arm, the base part is in interference fit with the FPC soft row, and the base part is provided with a bottom edge abutting against the upper surface of the FPC soft row. Compared with the prior art, the structure of the fixing part is optimized, the FPC soft row can be vertically inserted, mounted and dismounted by utilizing the characteristic of transverse elastic deformation of the fixing part, a rotary pressing plate / turnover plate in the prior art is also omitted, and meanwhile, the FPC soft row can be firmly fixed below the fixing part by utilizing the fixing part; the contact stability of the FPC soft bar and the terminal is ensured, and the whole structure is relatively simple and convenient to operate.

Description

Technical Field

[0001] The utility model relates to the field of electrical connection, in particular to an FPC flexible row electrical connector. Background Art

[0002] With the development trend of miniaturization and lightness of consumer electronic products such as notebooks, tablets, and mobile phones, the requirements for the design and manufacturing process of their components are becoming higher and higher. As the products become lighter and thinner, the internal space becomes very narrow, which requires a dense layout inside the product. The size of each electronic component is also getting smaller and smaller, and thinner and lighter. The requirements for the reliability of the process technology and product connections are getting higher and higher. For example, the FPC soft row (flexible board or wire row) connector is a commonly used small electrical connector, which is used to plug in the FPC soft row (flexible board or wire row) to achieve electrical connection. The insertion method of the FPC soft row is currently mainly horizontal insertion. The FPC soft row is inserted and then fixed by flipping the cover. However, this insertion method has certain angle restrictions. In some application scenarios, there is no operating space, so it has some limitations. Utility Model Content

[0003] The technical problem solved by the present invention is to provide an FPC flexible bus electrical connector to improve the limitations of the FPC flexible bus insertion method in the prior art.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solution: an FPC soft row electrical connector, including an insulating body, a plurality of terminals accommodated in the insulating body, and a pair of fixing members fixed at both ends of the insulating body, wherein the fixing members are provided with an elastic base, a guide piece extending upward from the base, a U-shaped folded arm folded back and extended forward from the rear side of the base, and a fixing arm extending forward from the folded arm, the base is interference-fitted with the FPC soft row, and the base is provided with a bottom edge abutting against the upper surface of the FPC soft row.

[0005] Furthermore, the insulating body is provided with a front side wall, a rear side wall and a pair of end walls, the front side wall, the rear side wall and the end walls form a frame structure and a frame opening is formed on the inner side of the frame structure, which passes through the insulating body from top to bottom, and the terminal is provided with a contact arm extending into the frame opening and being suspended.

[0006] Furthermore, the fixed arm is provided with a horizontally extending transverse arm and a pair of vertical insertion arms extending downward from the bottom edge of the transverse arm. The pair of vertical insertion arms are arranged downwardly parallel to each other and inserted into the insulating body.

[0007] Furthermore, the guide piece is folded outward from the top of the base and is provided with an inclined surface extending outwardly, and the guide piece is higher than the end wall in the vertical direction.

[0008] Furthermore, the base is provided with a main body plate and an outer folding plate extending outwardly from the rear side of the main body plate, the outer folding plate is integrally connected to the U-shaped folding arm, the bottom edge of the main body plate is provided with a bayonet, and the insulating body is provided with a convex wall corresponding to the bayonet.

[0009] Furthermore, a support platform integrally connected to the rear side wall is provided on the inner side of the end wall, the support platform carries the fixing member, and a mounting socket is formed on the support platform, and the mounting socket extends downward into the interior of the insulating body to accommodate the vertical insertion arm.

[0010] Furthermore, the convex wall is integrally connected to the end wall and the front side wall, and the convex wall protrudes from the top surface of the front side wall, and a stop protrusion is provided on the convex wall located on the outside of the main body plate, and a deformation space is formed between the stop protrusion and the main body plate to allow the main body plate to elastically deform outward.

[0011] Furthermore, the base of the fixing member protrudes forward beyond the insulating body to be exposed outside the insulating body.

[0012] Furthermore, the terminal is fixed on the rear side wall, and a retaining groove for accommodating the fixing member is formed between the longitudinal ends of the rear side wall and the end wall.

[0013] Compared with the existing technology, the present invention optimizes the structure of the fixing part and utilizes its lateral elastic deformation characteristics to enable the FPC soft row to be installed and disassembled vertically, and also eliminates the transfer plate / flip plate in the existing technology. At the same time, the fixing part can be used to firmly fix the FPC soft row underneath it, ensuring the contact stability between the FPC soft row and the terminal. The overall structure is relatively simple and easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the FPC flexible electrical connector of the present invention.

[0015] Figure 2 It is a top view of the FPC flexible electrical connector of the present invention.

[0016] Figure 3 This is a three-dimensional exploded view of the FPC flexible electrical connector of the present invention.

[0017] Figure 4 This is the front view of the FPC flexible electrical connector of the present invention.

[0018] Figure 5 This is a partial view of the FPC flexible strip electrical connector of the present invention after being installed into the FPC flexible strip. DETAILED DESCRIPTION

[0019] See also Figures 1 to 5 As shown, the present invention provides an FPC flexible strip electrical connector 100, comprising: an insulating body 10, a plurality of terminals 20 housed in the insulating body 10, and a pair of fixing members 30 fixed at both ends of the insulating body 10. The insulating body 10 is used to carry the terminals 20 and the fixing members 30, and the fixing members 30 are used to weld and fix the insulating body 10 to the circuit board. The terminals 20 are used to press-fit with the FPC flexible strip 200. Specifically:

[0020] like Figure 1 and Figure 3 The insulating body 10 is provided with a front side wall 11, a rear side wall 12 and a pair of end walls 13. Preferably, the front side wall 11, the rear side wall 12 and the end walls 13 are integrally injection-molded and enclose a frame structure, and a frame opening 14 is formed on the inner side of the frame structure, which is through-through from top to bottom. The frame opening 14 is located between the front side wall 11, the rear side wall 12 and the end walls 13. The front side wall 11 and the rear side wall 12 are both longitudinally extended, and the pair of end walls 13 are integrally connected to the longitudinal ends of the front side wall 11 and the rear side wall 12. The front side wall 11 and the rear side wall 12 are arranged parallel to each other. Preferably, the rear side wall 12 is higher than the front side wall 11 and also higher than the pair of end walls 13, and a retaining groove 16 is formed between the longitudinal ends of the rear side wall 12 and the end walls 13 for accommodating the fixing member 30. Preferably, a support platform 17 integrally connected to the rear side wall 12 is provided on the inner side of the end wall 13. The support platform 17 is used to support the fixing member 30. A mounting socket 18 is formed on the support platform 17 for fixedly engaging with the fixing member 30. The top surface of the support platform 17 is lower than the end wall 13 and the rear side wall 12. The mounting socket 18 is upwardly disposed for top-down insertion of the fixing member 30. Preferably, a protruding wall 19 integrally connected to the front side wall 11 is provided on the inner side of the end wall 13. The protruding wall 19 is integrally connected to the end wall 13 and the front side wall 11. The protruding wall 19 protrudes from the top surface of the front side wall 11. The protruding wall 19 is provided on the outer side of the fixing member 30 to prevent the base 31 of the fixing member 30 from excessive elastic deformation outward.

[0021] The terminal 20 is provided with a horizontal arm 21, an arcuate contact arm 22 extending forward from the horizontal arm 21, and a soldering arm 23 extending rearward from the horizontal arm 21. The horizontal arm 21 is integrally embedded in the rear sidewall 12 to secure the terminal 20 to the insulating body 10, while the arcuate contact arm 22 extends into the frame opening 14 in a suspended position to crimp with the FPC strip 200. The soldering arm 23 extends rearward and protrudes from the rear sidewall 12 for soldering to a circuit board (not shown).

[0022] The fixing member 30 is provided with a base 31, a guide piece 32 extending upward from the base 31, a U-shaped folding arm 33 folded back and extended forward from the rear side of the base 31, and a fixing arm 34 extending forward from the folding arm 33. The base 31 is plate-shaped and vertically arranged, and the bottom edge of the base 31 abuts against the insulating body 10. Preferably, the base 31 is provided with an elastic main body plate 310 and an outer folding plate 311 extending outwardly and obliquely from the rear side of the main body plate 310. The outer folding plate 311 is integrally connected with the U-shaped folding arm 33. The outer folding plate 311 is bent outward relative to the main body plate 310. Preferably, the bottom edge of the main body plate 310 is provided with a bayonet 312 corresponding to the convex wall 19, and the bayonet 312 is engaged with the convex wall 19. Figure 5 As shown. The fixed arm 34 is provided with a horizontally extending horizontal arm 341 and a pair of vertical plug arms 342 extending downward from the bottom edge of the horizontal arm 341. The pair of vertical plug arms 342 are arranged downwardly parallel to each other and inserted into the mounting socket 18 in the insulating body 10, and pass downward through the insulating body 10 to be soldered on the circuit board. Preferably, the guide piece 32 is folded outward and has an inclined surface 37 extending outwardly on its surface, which can play a guiding role when the FPC flexible row 200 is assembled downward, making the assembly of the FPC flexible row 200 smoother, and the guide piece 32 is higher than the end wall 13 in the vertical direction, and is also higher than the U-shaped folded arm 33 and the fixed arm 34.

[0023] In a preferred embodiment of the present invention, a deformation space 192 is provided between the base 31 of the fixing member 30 and the stop protrusion 191. Specifically, the deformation space 192 is located between the main plate 310 of the base 31 and the stop protrusion 191, so that the main plate 310 has space for elastic expansion outward, thereby facilitating the loading and removal of the FPC soft row 200. In addition, in order to facilitate the removal of the FPC soft row 200, the base 31 of the fixing member 30 protrudes forward beyond the insulating body 10 to be exposed outside the insulating body 10, making it easy to turn it outward to release the FPC soft row 200 below it. Figure 2 and Figure 5 As shown, the main plate 310 of the base 31 protrudes forward beyond the front side wall 11 of the insulating body 10 . Similarly, the U-shaped folded arm 33 protrudes backward beyond the rear side wall 12 of the insulating body 10 .

[0024] During assembly, the FPC row 200 is installed on the insulating body 10 from top to bottom. During the installation process, the base 31 is elastically expanded outward by applying pressure to the fixing member 30. After the FPC row 200 is installed in place, the base 31 returns to its original position to clamp the surfaces of the two side edges of the FPC row 200. Figure 5 As shown, the vertical installation of the FPC flexible strip 200 is completed.

[0025] In summary, the FPC flexible strip electrical connector of the present invention optimizes the structure of the fixing part 30 and utilizes its lateral elastic deformation characteristics to enable the FPC flexible strip 200 to be installed and disassembled vertically, and also eliminates the transfer plate / flip plate in the prior art. At the same time, the fixing part 30 can be used to firmly fix the FPC flexible strip 200 underneath it, ensuring the contact stability between the FPC flexible strip 200 and the terminal 20, and the overall structure is relatively simple and easy to operate.

[0026] The above description is only the best embodiment of the present invention and does not limit the present invention in any form. Any technician familiar with the field can make many possible changes and modifications to the technical solution of the present invention using the above-disclosed method content without departing from the scope of the technical solution of the present invention, which all fall within the scope of protection of the claims.

Claims

1. An FPC flexible strip electrical connector, comprising an insulating body, a plurality of terminals received in the insulating body, and a pair of fixing members fixed at both ends of the insulating body, characterized in that: The fixing member is provided with an elastic base, a guide piece extending upward from the base, a U-shaped folded arm folded back and extended forward from the rear side of the base, and a fixing arm extending forward from the folded arm. The base is in interference fit with the FPC soft row, and the base is provided with a bottom edge abutting against the upper surface of the FPC soft row.

2. The FPC flexible strip electrical connector according to claim 1, wherein: The insulating body is provided with a front side wall, a rear side wall and a pair of end walls. The front side wall, the rear side wall and the end walls form a frame structure and a frame opening is formed on the inner side of the frame structure, which passes through the insulating body from top to bottom. The terminal is provided with a contact arm extending into the frame opening and in a suspended state.

3. The FPC flexible strip electrical connector according to claim 2, wherein: The fixed arm is provided with a horizontally extending transverse arm and a pair of vertical insertion arms extending downward from the bottom edge of the transverse arm. The pair of vertical insertion arms are arranged downwardly parallel to each other and inserted into the insulating body.

4. The FPC flexible strip electrical connector according to claim 3, wherein: The guide piece is folded outward from the top of the base and is provided with an inclined surface extending outwardly. The guide piece is higher than the end wall in a vertical direction.

5. The FPC flexible strip electrical connector according to claim 4, wherein: The base is provided with a main body plate and an outer folding plate extending outwardly from the rear side of the main body plate. The outer folding plate is integrally connected to the U-shaped folding arm. The bottom edge of the main body plate is provided with a bayonet, and the insulating body is provided with a convex wall corresponding to the bayonet.

6. The FPC flexible strip electrical connector according to claim 5, wherein: A support platform integrally connected to the rear side wall is provided on the inner side of the end wall, the support platform carries the fixing member, and a mounting socket is formed on the support platform, the mounting socket extends downward into the interior of the insulating body to accommodate the vertical insertion arm.

7. The FPC flexible strip electrical connector according to claim 6, wherein: The convex wall is integrally connected to the end wall and the front side wall, and the convex wall protrudes from the top surface of the front side wall. The convex wall is provided with a stop protrusion located on the outside of the main body plate, and a deformation space is formed between the stop protrusion and the main body plate to allow the main body plate to elastically deform outward.

8. The FPC flexible strip electrical connector according to claim 7, wherein: The base of the fixing member protrudes forward beyond the insulating body to be exposed outside the insulating body.

9. The FPC flexible strip electrical connector according to claim 8, wherein: The terminal is fixed on the rear side wall, and a retaining groove for accommodating the fixing member is formed between the longitudinal ends of the rear side wall and the end wall.

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