CN210430163U

CN210430163U - FPC connector

Info

Publication number: CN210430163U
Application number: CN201921729567.7U
Authority: CN
Inventors: 林锡新; 林锡旭; 刘祚杰; 林旭芝; 李�浩; 魏西朋
Original assignee: Zhejiang Jieshitai Electronic Co ltd
Current assignee: Zhejiang Jieshitai Electronic Co ltd
Priority date: 2019-10-15
Filing date: 2019-10-15
Publication date: 2020-04-28
Anticipated expiration: 2029-10-15

Abstract

The utility model discloses a FPC connector, which comprises an insulating base, a plurality of connecting terminals, a locking bar, and a positioning piece for positioning the locking bar and the FPC cable; the front end of the insulating base is provided with a locking cavity, the rear end of the insulating base is provided with an inserting groove for inserting a connecting terminal, two sides of the locking cavity are communicated with positioning grooves for inserting positioning pieces, and each positioning piece comprises a fixing piece, a connecting piece and an elastic piece for positioning an FPC (flexible printed circuit) flat cable; the elastic piece comprises a V-shaped elastic part and an elastic arm connected to one end of the elastic part; the locking bar is provided with the spread groove that supplies connection piece and elastic component card to go into, spread groove tank bottom intercommunication has the spacing groove that supplies the elastic arm card to go into. The utility model has the advantages of the FPC winding displacement inserts easily laborsaving and receives fastening effect good.

Description

FPC connector

Technical Field

The utility model relates to a connector, in particular to FPC connector.

Background

The connector is used for erecting a communicated bridge in the circuit to enable current to flow, and further the circuit can achieve a preset function. The form and structure of the connector varies from application to application. The FPC (flexible printed circuit) and the FFC (flexible flat cable) have the advantages of small volume and light weight compared with wire harness leads. The FPC cable has good flexibility and good heat dissipation, and is commonly used in mobile phones and notebook computers.

Chinese patent No. CN204885673U discloses an electrical connector, which comprises an insulating body, conductive terminals housed in the insulating body, a rotating pressing plate rotating relative to the insulating body, and a metal member, wherein the insulating body is provided with a housing space for housing a flexible printed circuit board, two opposite sides of the housing space are respectively provided with an ear portion, the metal member at least comprises an elastic arm extending into the housing space, the elastic arm is provided with a contact portion, and the distance from the contact portion to the bottom wall of the insulating body is smaller than the thickness of the flexible printed circuit board.

The electric connector is used for connecting the FPC flat cable, and the connecting process is as follows: open the commentaries on classics clamp plate, insert the accommodating space with the FPC winding displacement, push away the deformation of elastic arm, support the portion of leaning on and lean on the ear lower surface and receive spacingly, and then make contact site and FPC keep long butt joint. However, the following technical drawbacks still exist: ear and insulator are fixed, and unable activity leans on the deformation space of portion to receive the restriction consequently, and then leads to the deformation space of elastic arm to receive the restriction to lead to the FPC winding displacement to insert the difficulty, wait to improve.

SUMMERY OF THE UTILITY MODEL

To the technical defect, the utility model aims at providing a FPC connector, the FPC winding displacement inserts easily and fastens effectually to it.

In order to achieve the above purpose, the utility model provides a following technical scheme:

a FPC connector comprises an insulating base, a plurality of connecting terminals, locking strips and positioning pieces, wherein the connecting terminals are inserted and installed in the insulating base; the front end of the insulating base is provided with a locking cavity for inserting the FPC (flexible printed circuit) cable and placing the locking bar, the rear end of the insulating base is provided with an inserting groove for inserting the connecting terminal and communicating with the locking cavity, two sides of the locking cavity are communicated with positioning grooves for inserting positioning pieces, each positioning piece comprises a fixing piece for positioning the locking bar, a connecting piece connected with the fixing piece and extending into the locking cavity, and an elastic piece connected with the connecting piece and used for positioning the FPC cable; the elastic piece comprises a V-shaped elastic part and an elastic arm connected to one end of the elastic part, the other end of the elastic part, which is far away from the elastic arm, is connected to one side, facing the connecting terminal, of the connecting piece, and the elastic arm is positioned on one side, facing away from the connecting terminal, of the connecting piece and protrudes relative to the connecting piece; the locking bar is provided with the spread groove that supplies connection piece and elastic component card to go into, spread groove tank bottom intercommunication has the spacing groove that supplies the elastic arm card to go into.

Through adopting above-mentioned technical scheme, when installing the FPC winding displacement, the locking strip is opened in the upset earlier, inserts the FPC winding displacement again between elastic sheet and the locking chamber diapire until it contacts with connecting terminal, covers the locking strip at last, and the elastic arm card is gone into the spacing groove and is received spacingly.

The elastic sheet is deformed in the inserting process, the elastic arm moves upwards without being limited, and therefore the FPC flat cable inserting process is easy and labor-saving. After the locking bar is covered, the elastic arm is limited by the limiting groove and is not easy to move, and reacts on the elastic arm, so that the elastic part has good clamping force on the FPC flat cable, and the fastening effect is good.

The utility model discloses further set up to: the locking bar includes the pivot, changes the strip be connected with the pivot, it is provided with a plurality of connecting holes that supply connecting terminal card to go into to change the strip, connecting terminal stretches into the upper end in locking chamber for the hook portion that is used for spacing pivot.

Through adopting above-mentioned technical scheme, the pivot receives hook portion spacing and only can rotate around self axis, and then drives and changes the strip and open or close.

The utility model discloses further set up to: the locking chamber both sides all communicate with the rotation chamber that supplies the pivot card to go into, the stationary blade stretches into and rotates the chamber and laminate in the pivot downside, the part that the stationary blade stretched into and rotates the chamber is the step form.

Through adopting above-mentioned technical scheme, during the assembly, earlier with the vertical locking chamber of inserting of locking strip, the rotation chamber is gone into to pivot both ends card, passes the locking strip towards connecting terminal again for hook portion card goes into the connecting hole, lifts the locking strip after that, inserts the stationary blade, and the locking strip receives the support of stationary blade and can't fall, accomplishes the assembly.

The utility model discloses further set up to: the inner wall of the rotating cavity, which is away from the positioning groove, is provided with an insertion hole for inserting the end part of the fixing piece.

Through adopting above-mentioned technical scheme, increase the inseparability of being connected of spacer and insulating base for the spacer is difficult for falling out.

The utility model discloses further set up to: and a limiting block is connected between the rotating shaft and the rotating strip.

Through adopting above-mentioned technical scheme, when the locking bar was in the horizontal lid and closes the state, the stopper was in between pivot and the rotation intracavity wall, and then restricted the locking bar, made it be difficult for taking place the horizontal slip and lead to hook portion atress too big and deformation fracture.

The utility model discloses further set up to: the one end upside that changes the strip and deviate from the pivot is connected with protruding edge, downside and is provided with the groove of stepping down.

By adopting the technical scheme, the locking bar can be conveniently turned and opened by pushing the convex edge by hands.

The utility model discloses further set up to: the locking strip both sides all are connected with the locking piece, the insulating base is the lockplate in the part of constant head tank upside, the lockplate downside is provided with the locking groove that supplies the locking piece card to go into.

Through adopting above-mentioned technical scheme, when the locking strip lid closed, locking piece card was gone into the locking groove, made it open and need overcome certain effort, guaranteed the fixed effect of locking strip, and then guaranteed the fixed effect of FPC winding displacement.

The utility model discloses further set up to: and two sides of the locking cavity are provided with stop blocks.

Through adopting above-mentioned technical scheme, the dog card is gone into the breach of its both sides when the FPC winding displacement inserts, and then restricts fixedly it.

The utility model discloses further set up to: the locating plate further comprises a bending plate connected to the lower end of the fixing plate and attached to the insulating base.

By adopting the technical scheme, the bending sheet is arranged on the outer surface of the insulating base and acts on the bending sheet, so that the bending sheet can be detached.

The utility model discloses further set up to: the insulation base is connected with a positioning block, and the bending piece is provided with a positioning hole for the positioning block to be clamped in.

Through adopting above-mentioned technical scheme, the piece of buckling receives the location of locating piece, and then makes the locating piece receive better fixed to guarantee the fixed effect of locating piece to the locking strip.

To sum up, the utility model discloses following beneficial effect has:

1. the structure of the elastic sheet is optimized and improved, and the elastic sheet is matched and fixed with the locking strip, so that the FPC flat cable insertion process is easy and labor-saving, and the fastening effect is good;

2. the bending piece is positioned, so that the positioning effect of the positioning piece on the locking strip is enhanced.

Drawings

FIG. 1 is a schematic view of a lock bar closed according to a first embodiment;

FIG. 2 is a schematic structural view of the first embodiment when the locking bar is opened;

FIG. 3 is an enlarged schematic view of area A of FIG. 2;

FIG. 4 is a schematic cross-sectional view taken along line B-B of FIG. 2;

FIG. 5 is an exploded view of the first embodiment;

FIG. 6 is a schematic structural diagram of an insulating base according to an embodiment;

FIG. 7 is a schematic view of a spacer according to an embodiment;

fig. 8 is a schematic structural diagram of the second embodiment.

Description of reference numerals: 1. an insulating base; 11. a locking cavity; 12. a slot; 13. positioning a groove; 14. a rotation chamber; 15. a jack; 16. a locking plate; 161. a locking groove; 17. a stopper; 18. positioning blocks; 2. a connection terminal; 21. a hook portion; 3. a locking bar; 31. a rotating shaft; 32. strip turning; 321. connecting grooves; 322. a limiting groove; 323. connecting holes; 324. a yielding groove; 33. a limiting block; 34. a convex edge; 35. a locking block; 4. positioning plates; 41. a fixing sheet; 42. connecting sheets; 43. an elastic sheet; 431. an elastic portion; 432. a resilient arm; 44. bending the sheet; 441. and (7) positioning the holes.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The first embodiment is as follows:

an FPC connector comprises an insulating base 1, a plurality of connecting terminals 2 which are inserted and installed at the rear end of the insulating base 1 at equal intervals, locking strips 3 which are in running fit with the connecting terminals 2, and positioning pieces 4 which are respectively inserted and installed on two sides of the front end of the insulating base 1 and used for positioning the locking strips 3 and an FPC flat cable, wherein the positioning pieces are shown in figure 1.

As shown in fig. 2 and 3, the front end of the insulating base 1 has a locking cavity 11 for inserting the FPC cable and placing the locking bar 3, and the upper side of the locking cavity 11 has an opening. The two sides of one end of the locking cavity 11 far away from the connecting terminal 2 are both communicated with a positioning groove 13 for inserting the positioning sheet 4, and the two sides of one end towards the connecting terminal 2 are both communicated with a rotating cavity 14. The front side of the positioning slot 13 has an opening for inserting the positioning sheet 4.

As shown in fig. 2 and 3, the positioning plate 4 includes a fixing plate 41 vertically disposed and penetrating through the positioning groove 13 to extend into the rotation cavity 14, a bending plate 44 vertically and fixedly connected to the lower end of the fixing plate 41 and attached to the lower side of the insulating base 1, a connecting plate 42 vertically and fixedly connected to the upper end of the fixing plate 41 and extending into the locking cavity 11, and an elastic plate 43 fixedly connected to the lower side of the end of the connecting plate 42 and used for positioning the FPC cable. The bent tabs 44 are formed by bending away from the connecting tabs 42 (as shown in fig. 7).

The elastic piece 43 includes an elastic portion 431 having a V-shape, and an elastic arm 432 fixedly connected to one end of the elastic portion 431. The other end of the elastic portion 431 away from the elastic arm 432 is fixedly connected to the side of the connecting piece 42 facing the connecting terminal 2, and the elastic arm 432 is located on the side of the connecting piece 42 facing away from the connecting terminal 2 and protrudes above the connecting piece 42. When the FPC cable is inserted into the locking cavity 11 and extends between the elastic portion 431 and the bottom wall of the locking cavity 11, the elastic portion 431 is deformed by the pushing force, the elastic arm 432 moves upward, and the elastic portion 431 reacts to the FPC cable to generate a clamping force.

As shown in fig. 3 and 4, the rear end of the insulating base 1 has a slot 12 for inserting the connection terminal 2 and communicating with the locking cavity 11, and the upper end of the connection terminal 2 extending into the locking cavity 11 is a hook 21 for limiting the rotation shaft 31.

The locking bar 3 comprises a rotating shaft 31 which is in running fit with the connecting terminals 2 and a rotating bar 32 which is fixedly connected with the rotating shaft 31, and a plurality of connecting holes 323 into which the connecting terminals 2 are clamped are arranged on one side of the rotating bar 32 facing the rotating shaft 31 at equal intervals. The two ends of the rotating shaft 31 protrude relative to the locking bar 3 and are clamped into the rotating cavity 14, the part of the fixing piece 41 extending into the rotating cavity 14 is step-shaped and is attached to the lower side of the rotating shaft 31, so that the rotating shaft 31 is lifted to be attached to the lower side of the hook part 21, and the movement of the rotating shaft 31 towards the direction of the connecting piece 42 is limited. The spindle 31 can therefore only be rotated about its own axis, which in turn brings the rotor blade 32 into and out of the locking chamber 11.

As shown in fig. 4 and 5, the opposite sides of the rotating strip 32 are provided with connecting grooves 321 into which a part of the connecting piece 42 and the elastic part 431 are inserted, and the bottom of each connecting groove 321 is communicated with a limiting groove 322 into which an elastic arm 432 is inserted. The opposite ends of the rotating strip 32 are fixedly connected with locking blocks 35, the upper side of the positioning slot 13 of the insulating base 1 is provided with a locking plate 16, and the lower sides of the opposite ends of the two locking plates 16 are provided with locking slots 161 for the locking blocks 35 to be clamped in.

After the FPC flat cable is inserted into the joint with the connecting terminal 2, the locking strip 3 is rotated to the locking block 35 to be clamped into the locking groove 161, the elastic arm 432 is extruded by the bottom wall of the limiting groove 322 to receive a reaction force, the clamping force of the elastic part 431 on the FPC flat cable is increased, and the fixing effect is good. Meanwhile, the movement of the elastic piece 43 is not limited in the FPC flat cable inserting process, so that the FPC flat cable inserting process is easy and labor-saving.

As shown in fig. 3 and 5, a limiting block 33 is fixedly connected between the rotating shaft 31 and the rotating strip 32, when the locking strip 3 is in a closed state, the limiting block 33 is located between the rotating shaft 31 and the inner wall of the rotating cavity 14, so as to limit the locking strip 3, and the hook portion 21 is not easy to horizontally slide, so that the hook portion 21 is stressed too much and is deformed and broken. The upper side of the end of the rotating strip 32 departing from the rotating shaft 31 is fixedly connected with a convex edge 34, and the lower side is provided with a abdicating groove 324, so that the locking strip 3 can be conveniently opened by the hand pushing against the convex edge 34.

As shown in fig. 6, the inner wall of the rotation cavity 14 away from the positioning slot 13 is provided with an insertion hole 15 for inserting the end of the fixing piece 41, and the lower end of the fixing piece 41 is lower than the bottom wall of the rotation cavity 14, so that the connection tightness between the positioning piece 4 and the insulation base 1 is improved, and the positioning piece 4 is not easy to fall out. The two sides of the bottom wall of the locking cavity 11 are fixedly connected with stop blocks 17 below the locking plate 16, and the stop blocks 17 are clamped into the notches on the two sides of the locking cavity when the FPC flat cable is inserted, so that the FPC flat cable is limited and fixed.

The assembling process comprises the following steps:

firstly, a plurality of connecting terminals 2 are sequentially inserted into the insulating base 1, then the locking strip 3 is vertically inserted into the locking cavity 11 and is dislocated with the hook portion 21, two ends of the rotating shaft 31 are clamped into the rotating cavity 14, then the locking strip 3 is pushed towards the connecting terminals 2, the hook portion 21 is clamped into the connecting hole 323, then the locking strip 3 is lifted until the rotating shaft 31 is attached to the hook portion 21, finally the positioning piece 4 is inserted, the fixing piece 41 is inserted into the rotating cavity 14 and is padded on the lower side of the rotating shaft 31, and the assembly is completed.

The installation process comprises the following steps:

the locking bar 3 is opened first, then the FPC cable is inserted between the elastic portion 431 and the bottom wall of the locking cavity 11 until the FPC cable is engaged with the connection terminal 2, and finally the locking bar 3 is closed until the locking block 35 is engaged into the locking groove 161, and the elastic arm 432 is engaged into the limiting groove 322.

Example two:

as shown in fig. 8, the difference from the first embodiment is only that: the two ends of the lower side of the insulating base 1 are fixedly connected with positioning blocks 18, and the middle part of the bending piece 44 is provided with a positioning hole 441 for the positioning block 18 to be clamped in. The bending piece 44 is positioned by the positioning block 18, so that the positioning piece 4 is better fixed, and the fixing effect of the positioning piece 4 on the locking strip 3 is ensured.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. An FPC connector comprises an insulating base (1), a plurality of connecting terminals (2) inserted and mounted in the insulating base (1), locking strips (3) in rotating fit with the connecting terminals (2), and positioning pieces (4) respectively inserted and mounted on two sides of the insulating base (1) and used for positioning the locking strips (3) and FPC cables; insulating base (1) front end has locking chamber (11) that supplies the FPC winding displacement to insert and place locking strip (3), and the rear end has slot (12) that supplies connecting terminal (2) to insert and communicate with locking chamber (11), locking chamber (11) both sides intercommunication has confession spacer (4) male constant head tank (13), its characterized in that: the positioning piece (4) comprises a fixing piece (41) used for positioning the locking strip (3), a connecting piece (42) connected with the fixing piece (41) and extending into the locking cavity (11), and an elastic piece (43) connected with the connecting piece (42) and used for positioning the FPC cable; the elastic piece (43) comprises a V-shaped elastic part (431) and an elastic arm (432) connected to one end of the elastic part (431), the other end, away from the elastic arm (432), of the elastic part (431) is connected to one side, facing the connecting terminal (2), of the connecting piece (42), and the elastic arm (432) is located on one side, away from the connecting terminal (2), of the connecting piece (42) and protrudes relative to the connecting piece (42); the locking bar (3) is provided with a connecting groove (321) for the connecting sheet (42) and the elastic part (431) to be clamped in, and the bottom of the connecting groove (321) is communicated with a limiting groove (322) for the elastic arm (432) to be clamped in.

2. The FPC connector according to claim 1, wherein: locking strip (3) are including pivot (31), change strip (32) of being connected with pivot (31), it is provided with connecting hole (323) that a plurality of confession connecting terminal (2) are gone into to change strip (32), connecting terminal (2) stretch into hook portion (21) of upper end for being used for spacing pivot (31) of locking chamber (11).

3. The FPC connector according to claim 2, wherein: locking chamber (11) both sides all communicate with rotation chamber (14) that supply pivot (31) card to go into, stationary blade (41) stretch into and rotate chamber (14) and laminate in pivot (31) downside, stationary blade (41) stretch into the part that rotates chamber (14) and are the step form.

4. An FPC connector according to claim 3, wherein: the inner wall of the rotating cavity (14) deviating from the positioning groove (13) is provided with an insertion hole (15) for inserting the end part of the fixing piece (41).

5. An FPC connector according to claim 3, wherein: and a limiting block (33) is connected between the rotating shaft (31) and the rotating strip (32).

6. The FPC connector according to claim 2, wherein: the upside of one end of the rotating strip (32) departing from the rotating shaft (31) is connected with a convex edge (34), and the downside is provided with a abdicating groove (324).

7. The FPC connector according to claim 1, wherein: locking strip (3) both sides all are connected with locking piece (35), insulating base (1) is lockplate (16) in the part of constant head tank (13) upside, lockplate (16) downside is provided with and supplies locking piece (35) card to go into locking groove (161).

8. The FPC connector according to claim 1, wherein: and two sides of the locking cavity (11) are provided with stop blocks (17).

9. The FPC connector according to claim 1, wherein: the positioning sheet (4) further comprises a bending sheet (44) which is connected to the lower end of the fixing sheet (41) and attached to the insulating base (1).

10. The FPC connector according to claim 9, wherein: the insulation base (1) is connected with a positioning block (18), and the bending piece (44) is provided with a positioning hole (441) for the positioning block (18) to be clamped into.