CN203326192U - Fpc connector - Google Patents

Abstract

The utility model discloses an FPC connector, comprising an insulating body and a plurality of conductive terminals, wherein the conductive terminals are inserted into the insulating body to form an FPC plug-in port for inserting an FPC flat cable, and a pressure piece is installed at the opening position of the FPC plug-in port, and the pressure piece has an extended tongue piece, and the extended tongue piece extends into the FPC plug-in port. Thereby, the extended tongue piece presses the butted FPC flat cable upward, so that the FPC flat cable is tightly in contact with the conductive terminal, the product connection is stable and reliable, and the stability of product information transmission is improved; and the top surface of the extended tongue piece is a plane, which will not crush/break the FPC flat cable, and is safe and reliable to use.

Description

FPC connector

technical field

The utility model relates to the technology in the field of connectors, in particular to an FPC connector.

Background technique

The flexible flat cable printed circuit is called FPC. In recent years, FPC has been widely used to connect printed circuit boards and electronic components installed in portable information devices such as DVD (digital video camera), DSC (digital camera), Mobile phones, computers, etc.

The FPC connector surface mounted on the printed circuit board generally includes an insulating body and a plurality of conductive terminals, an insertion area is formed on the insulating body, and the conductive terminals are installed in parallel with a predetermined pitch on the insertion area of the insulating body to An FPC socket into which the FPC flat cable is inserted is formed.

With the above-mentioned design structure, the FPC flat cable is inserted into the FPC socket, and the conductive terminals are clamped and abutted to realize electrical conduction and transmit data information. However, due to the small size of the conductive terminals and insufficient clamping force, the connection between the FPC flat cable and the FPC connector is prone to loosening, resulting in unstable information transmission.

With the advancement of technology, a new type of FCP connector has also appeared on the market. By installing a rotatable pressure block on the side of the FCP socket, the pressure block is pivotally connected to the FCP socket, and the pressure block is generally set as Eccentric structure, so that when the FPC flat cable is inserted into the FCP socket, the pressing block is rotated, and the eccentric structure of the pressing block can compress the FPC flat cable so that it cannot exit the FCP socket. However, this design is unreasonable: once the size of the eccentric structure of the pressing block is too small, the FPC flat cable cannot be compressed after rotation, and the connection stabilization effect cannot be achieved; once the size of the eccentric structure of the pressing block is too large, after rotation It will break the FPC flat cable, so it is difficult to guarantee the quality.

Utility model content

In view of this, the utility model aims at the lack of the existing technology, and its main purpose is to provide an FPC connector, which can ensure that after the FPC flat cable is inserted into the FPC connector, the connection is stable and reliable, the use is safe, and the product information is improved. Transmission stability.

In order to achieve the above object, the utility model adopts the following technical solutions:

An FPC connector includes an insulating body and a plurality of conductive terminals. The conductive terminals are inserted into the insulating body to form an FPC socket for inserting an FPC flat cable. A pressure member is installed at the opening of the FPC socket. The pressure There is an extended tongue piece on the piece, and the extended tongue piece can press the FPC flat cable upwards and extend into the FPC socket.

Preferably, the pressurizing member includes a main body, the main body includes a bottom plate, and protrusions arranged on both sides of the bottom plate, the aforementioned extension tongue is formed by integrally extending backward from the rear side edge of the bottom plate, and the top surface of the extension tongue is flat.

Preferably, both sides of the pressurizing member have fastening parts, and the fastening parts are connected to both sides of the insulating body through a barb structure.

Preferably, the barb structure includes first barbs provided on both sides of the insulating body, and second barbs provided on both sides of the pressure member, and the first barb is fastened and connected to the second barb.

Preferably, metal pressing parts are installed on both sides of the insulating body, and the metal pressing parts clamp the first and second barbs.

Preferably, the metal pressing piece is enclosed by the outer blocking surface, the upper blocking surface, the lower blocking surface and the rear blocking surface to form a pressing space, and the inner edges of the upper and lower blocking surfaces also protrude into the pressing space There are clamping blocks; the upper and lower surfaces of both sides of the insulating body are provided with clamping grooves, the clamping blocks are embedded in the clamping grooves, and the first and second barbs are wrapped in the pressing space.

Preferably, supporting platforms are provided on both sides of the insulating body, and the supporting platforms are located below the first barb; the second barb is formed by recessing the inner side of the fastening part; when the first and second When the barb is fastened and connected, the bottom surface of the fastened part is pressed on the support platform.

Preferably, the front edge of the support platform has a guide surface inclined to facilitate the sliding of the fastening part.

Preferably, the insulating body is provided with a plurality of terminal slots, and each conductive terminal is plugged into the corresponding terminal slot. the

Preferably, the conductive terminals each include a first elastic contact portion, a second elastic contact portion, a holding portion and a solder foot portion; the first elastic contact portion is provided with barbs for clamping the FPC flat cable; the first elastic The contact part and the second elastic contact part are distributed up and down, and a clamp for clamping the FPC flat cable is formed in the area between the two; the holding part is connected to the second elastic contact part and the first elastic contact part The rear end, and the upper and lower ends of the holding part protrude with limit stops that can block the rear end surface of the insulating body; the welding leg part extends backward from the lower end of the holding part outside the insulating body.

Compared with the prior art, the utility model has obvious advantages and beneficial effects. Specifically, it can be seen from the above-mentioned technical scheme that since the FPC socket of the FPC electrical connector of the utility model is provided with a pressure piece outside, the pressure piece The extended tongue can be extended into the FPC socket, and the connected FPC flat cable can be squeezed upward, so that the FPC flat cable can be tightly contacted with the conductive terminal, and the product connection is stable and reliable, and the stability of product information transmission is improved. , and, the top surface of the extension tongue is flat, which will not crush/break the FPC flat cable, so it is safe and secure to use.

In order to illustrate the structural features and functions of the utility model more clearly, the utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

Description of drawings

Fig. 1 is the assembling three-dimensional schematic diagram of the embodiment of the utility model;

Fig. 2 is another perspective view of Fig. 1;

Fig. 3 is the front view of Fig. 1;

Fig. 4 is the sectional view of A-A in Fig. 3;

Fig. 5 is an exploded view of Fig. 1;

FIG. 6 is another perspective view of FIG. 5 .

Explanation of the accompanying drawings:

10. Insulation body 101. Left side panel

102. Right side board 103. Top board

104. Bottom plate 105. Rear side plate

11. FPC socket 12. Terminal slot

13. The first barb 14. Supporting platform

15. Guide surface 16. Card slot

20. Pressure parts 21. Main body

211. Bottom plate 212. Bump

213. Extension tongue 22. Fastening part

221 Second Barb

30. Metal pressing parts 31. Outer retaining surface

32. Upper retaining surface 33. Lower retaining surface

34. Rear face 35. Pressing space

36. Block

40. Conductive terminal 41. First elastic contact part

411. Barb 42. Second elastic contact part

43. Holding part 44. Welding foot part

45. Jaw 46. Limit block.

Detailed ways

Please refer to Fig. 1 to Fig. 5, which shows the specific structure of the preferred embodiment of the present utility model, the FPC connector includes an insulating body 10, a pressing part 20, two metal pressing parts 30 and many A conductive terminal 40. The insulative body 10 is surrounded to form a cavity, the pressure member 20 is installed on the front side of the insulative body 10, and the metal pressing member 30 is clamped on both sides of the insulative body 10 and the pressure member 20, so that the insulative body 10 and the pressing member 20 are fixed to each other, and the conductive terminal 40 is inserted into the cavity to form the FPC socket 11 for matching with the FPC flat cable.

Wherein, the insulating body 10 is formed by injection molding of thermoplastic material UL 94V-0. The insulating body 10 is arranged horizontally, and it is in the shape of a rectangular hollow frame. 102, top plate 103, bottom plate 104, rear side plate 105 constitute. A plurality of terminal slots 12 are disposed on the insulating body 10 , and each terminal slot 12 passes through the rear side plate 105 front and back. The outer surfaces of the left and right side panels 102 are provided with a first barb 13 and a support platform 14, the first barb 13 is located above the support platform 14 with a distance, and the front edge of the support platform 14 has an inclined The guide surface 15 provided. The first barb 13 and the supporting platform 14 are cooperatively arranged for connecting the pressing member 20 . In addition, two sides of the insulating body 10 are also provided with locking grooves 16 for clamping the metal pressing parts 30 .

The pressure member 20 is also made of plastic injection molding, and the pressure member 20 includes a main body portion 21 and a fastening portion 22 . The main body 21 is composed of a bottom plate 211, protrusions 212 located on both sides of the bottom plate 211, and an extended tongue 213 located on the rear side edge of the bottom plate 211. The top surface of the extended tongue 213 is a plane, which extends into the conductive The pinch 45 between the first elastic contact portion 41 and the second elastic contact portion 42 of the terminal 40 is used to press the FPC flat cable inserted into the FPC socket 11 upward, so that the FPC flat cable is tightly pressed against the first elastic contact portion 42. The elastic contact portion 41 realizes stable electrical connection. The fastening portion 22 protrudes backward from two sides of the main body 21 , and the inner side of the fastening portion 22 is recessed to form a second barb 221 . The fastening portion 22 is attached to the supporting portion by the function of the guiding surface 15 , and the second barb 221 cooperates with the first barb 13 to be hooked tightly so that the insulating body 10 and the pressing member 20 are connected to each other.

The metal pressing part 30 is preferably formed by punching and bending metals that are difficult to embroider, such as copper and aluminum. Each metal pressing piece 30 is surrounded by an outer retaining surface 31, an upper retaining surface 32, a lower retaining surface 33, and a rear retaining surface 34 to form a pressing space 35, and the inner edges of the upper and lower retaining surfaces 33 are also pressed against There is a block 36 protruding in the joint space 35. When the block 36 is embedded in the slot 16 of the insulating body 10, the metal pressing part 30 can clamp the first and second sides of the insulating body 10 and the pressure part 20. Hook 13, 221 makes it stably connected.

The conductive terminal 40 is formed by stamping with a metal material with good electrical conductivity, preferably phosphor bronze. In this embodiment, there are 26 conductive terminals 40 , and the distance between two adjacent conductive terminals 40 is 0.5 mm, but the number of electrical terminals 40 can be increased or decreased according to needs, and is not limited thereto. Each conductive terminal 40 is matched with the corresponding terminal slot 12 . Each conductive terminal 40 includes a first elastic contact portion 41 , a second elastic contact portion 42 , a holding portion 43 and a solder leg portion 44 . The first elastic contact portion 41 is provided with a barb 411 for clamping the FPC flat cable; the first elastic contact portion 41 and the second elastic contact portion 42 are distributed up and down, and the area between the two forms a It is used for clamping the clamping mouth 45 of the FPC flat cable. The holding part 43 is connected to the rear end of the second elastic contact part 42 and the first elastic contact part 41, and the upper and lower ends of the holding part 43 protrude from the limit stopper 46, which can block the rear end surface of the insulating body 10 to prevent The terminal groove 12 is crushed when the conductive terminal 40 is inserted too much. The solder leg portion 44 is an SMT (SMD) soldering structure, which protrudes backward from the lower end of the holding portion 43 out of the insulating body 10 for soldering to the PCB.

The assembling process of the present utility model is as follows:

First insert each conductive terminal 40 into the corresponding terminal groove 12 from the rear end; then make the insulating body 10 and the pressure member 20 face each other, slide the buckling part 22 into the supporting part along the guide surface 15, and at the same time the second A barb 13 is tightly pressed against the second barb 221, and the extended tongue 213 is pressed on the holding part 43 of the conductive terminal 40; then the two metal pressing parts 30 are fastened from the left and right directions to the insulating body 10 and The pressing part 20 makes the insulating body 10 and the pressing part 20 stably connected together, that is, the assembly is completed.

When in use, insert the FPC flat cable into the FPC socket 11, because the extension tongue 213 presses the FPC flat cable upwards, so that the FPC flat cable and the conductive terminal 40 form a single-sided contact, that is, the first contact between the FPC flat cable and the conductive terminal An elastic contact portion 41 is in stable phase contact to realize electrical conduction and stable information transmission.

In summary, the key point of the design of this utility model is that since the FPC socket 11 of the FPC electrical connector of the utility model is provided with a pressure piece 20, the extended tongue 213 of the pressure piece 20 can be extended into the FPC socket. In the interface 11, the butted FPC flat cable is squeezed upward, so that the FPC flat cable is tightly in contact with the conductive terminal 40, the product connection is electrically connected stably and reliably, and the stability of product information transmission is improved, and the extension tongue 213 The top surface of the FPC is flat and will not crush/break the FPC flat cable, so it is safe to use.

The above are only preferred embodiments of the present utility model, and do not limit the technical scope of the present utility model, so any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present utility model , all still belong to the scope of the technical solution of the utility model.

Claims (10)

1. a FPC connector, comprise insulating body and a plurality of conducting terminal, this conducting terminal is inserted in insulating body and forms the FPC interface inserted for the FPC flat cable, it is characterized in that: the aperture position of this FPC interface is equipped with a pressing means, have an extension tongue piece on this pressing means, this extension tongue piece can upwards extend into the FPC flat cable in the FPC interface with compressing.

2. FPC connector according to claim 1, it is characterized in that: described pressing means comprises main part, this main part comprises base plate, is located at the projection of base plate both sides, and aforementioned extension tongue piece is extended back and formed by base plate posterior lateral margin one, and the end face of this extension tongue piece is plane.

3. FPC connector according to claim 1, it is characterized in that: the both sides of described pressing means have buckling parts, and this buckling parts is connected in the insulating body both sides by overhead structure.

4. FPC connector according to claim 3, it is characterized in that: described overhead structure comprises the first barb of being located at the insulating body both sides, the second barb of being located at the pressing means both sides, and this first barb and the second barb are fastened and connected.

5. FPC connector according to claim 4, it is characterized in that: described insulating body both sides are equipped with the metal crimp component, and this metal crimp component clamps first, second barb.

6. FPC connector according to claim 5, it is characterized in that: described metal crimp component is enclosed and is formed with a pressing space by outer block face, upper retaining surface, lower retaining surface, rear retaining surfac, and the medial margin of this upper and lower block face also has fixture block to pressing space internal projection; The upper and lower surface of described insulating body both sides is provided with draw-in groove, and this fixture block is embedded in draw-in groove, and first, second barb is wrapped in the pressing space.

7. FPC connector according to claim 5, it is characterized in that: described insulating body both sides are provided with supporting table, and this supporting table is positioned at the below of the first barb; Described the second barb is by the inboard of buckling parts, to be caved in to arrange to form; When first, second barb is fastened and connected, the bottom surface of this buckling parts is pressed on supporting table.

8. FPC connector according to claim 7 is characterized in that: the front-end edge of described supporting table has and is obliquely installed the guiding face that facilitates buckling parts to slip into.

9. FPC connector according to claim 1, it is characterized in that: a plurality of terminal grooves are set on described insulating body, and each conducting terminal is plugged in corresponding terminal groove.

10. FPC connector according to claim 1, it is characterized in that: described conducting terminal includes the first elastic contact part, the second elastic contact part, holding parts and leg section; This first elastic contact part is provided with for blocking the hangnail of FPC flat cable; The first elastic contact part and the upper and lower distribution of the second elastic contact part, and the zone between the two is formed for clamping the jaws of FPC flat cable; This holding parts is connected in the rear end of the second elastic contact part and the first elastic contact part, and the upper and lower side of holding parts all is raised with the positive stop of the rear end face that can be blocked in insulating body; Described leg section stretches out insulating body backward from the lower end of holding parts.

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