CN215989464U

CN215989464U - FPC electric connector

Info

Publication number: CN215989464U
Application number: CN202121835122.4U
Authority: CN
Inventors: 吴永发; 朱芹; 吴祝平; 方志宏
Original assignee: Drapho Electronics Technology Co ltd
Current assignee: Drapho Electronics Technology Co ltd
Priority date: 2021-08-07
Filing date: 2021-08-07
Publication date: 2022-03-08
Anticipated expiration: 2031-08-07

Abstract

The utility model provides an FPC (flexible printed circuit) electric connector which comprises an insulating body, a terminal and a locking piece which are accommodated in the insulating body, and a driving piece which is arranged on the insulating body, wherein the insulating body is provided with an insertion groove for inserting an FPC (flexible printed circuit) and a pair of arrangement grooves which are positioned at the outer sides of two ends of the insertion groove, and the locking piece is arranged in the arrangement grooves and is provided with a locking part which protrudes into the insertion groove; the driving piece is positioned outside the insertion groove and is provided with a main body part arranged above the upper groove wall of the insertion groove and a pair of driving arms inserted in the placing groove. Compared with the prior art, the FPC soft board is locked by arranging the locking parts at the two ends of the insulating body and utilizing the locking parts which protrude upwards from the locking parts and extend into the insertion grooves, and the two sides of the FPC soft board can be clamped by the locking parts after the FPC soft board is inserted into the insertion grooves, so that the insertion self-locking function is realized, and the FPC soft board can be locked without a driving part.

Description

FPC electric connector

Technical Field

The utility model relates to the field of electrical connection, in particular to an FPC (flexible printed circuit) electric connector.

Background

With the development trend of miniaturization and lightness of consumer electronic products such as notebook computers, tablet computers, mobile phones and the like, the requirements on the design and manufacturing process of parts of the consumer electronic products are higher and higher, and as the products are lighter and thinner day by day, the internal space of the consumer electronic products is very narrow, so that the requirement that the internal parts of the consumer electronic products are required to adopt a dense layout is met, the volume of each electronic part is smaller and thinner, and the requirements on the reliability of the manufacturing process and the connection of the consumer electronic products are higher and higher. The existing FPC connector is used for connecting a Flexible Printed Circuit (FPC), and is very light, thin and small in size, and generally structurally comprises an insulating body, a terminal and a rotary pressing plate, when the FPC Flexible Printed Circuit/cable array is inserted into the insulating body, the rotary pressing plate is used for rotary pressing, the FCP Flexible Printed Circuit/cable array is pressed tightly, so that the FCP Flexible Printed Circuit/cable array and the terminal can be stably and reliably connected, and the existing FPC connector is designed so that the FPC Flexible Printed Circuit/cable array can be tightly fixed by the rotary pressing plate after being inserted into the insulating body, and if the rotary pressing plate is not pressed in time or is not pressed tightly, the FPC Flexible Printed Circuit/cable array can be separated from the insulating body easily. In view of this, a self-locking structure is required to be designed, so that the FPC can generate a self-locking effect after being inserted, and the above-mentioned detachment is avoided.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an FPC electric connector to realize the self-locking function after an FPC soft board is inserted.

In order to solve the technical problems, the utility model adopts the following technical scheme: an FPC electric connector comprises an insulating body, a terminal and a locking piece which are accommodated in the insulating body, and a driving piece which is arranged on the insulating body, wherein the insulating body is provided with an insertion groove for inserting an FPC and a pair of arrangement grooves which are positioned at the outer sides of two ends of the insertion groove, and the locking piece is arranged in the arrangement grooves and is provided with a locking part which protrudes into the insertion groove; the driving piece is positioned outside the insertion groove and is provided with a main body part arranged above the upper groove wall of the insertion groove and a pair of driving arms inserted in the placing groove.

Further, the driving arm is located below the latching member and can push the latching portion of the latching member to move upward by turning over itself to disengage from latching the FPC.

Furthermore, a mounting channel located below the locking piece is arranged in the mounting groove, the driving arm is inserted into the mounting channel, an arc-shaped surface is arranged at the tail end of the driving arm, and the tail end of the driving arm abuts against the bottom of the mounting channel and serves as a pivot for the driving arm to turn over.

Furthermore, the lock catch piece is further provided with a fixing part and an elastic arm for connecting the fixing part and the lock catch part, a step part positioned on one side of the placement channel is further arranged in the placement groove, and the elastic arm is upwards supported by the step part.

Furthermore, the elastic arm comprises a pair of upper arms extending forwards and horizontally from the fixing part and a pair of lower arms extending backwards from the tail ends of the upper arms in a turnover mode, and the pair of lower arms abut against the step part and the upper groove wall of the insertion groove respectively.

Furthermore, the locking part is connected with the lower arm in an integrated manner and is formed by extending the edge of one side of the lower arm in a downward protruding manner, the front side of the locking part is provided with a guide edge which is obliquely arranged, and the rear side of the locking part is provided with a stop edge which is vertically arranged.

Further, the upper arms and the lower arms are arranged in an up-down corresponding mode, the two upper arms are parallel to each other, a gap is reserved between the two upper arms, the two lower arms are parallel to each other, and a gap is also reserved between the two lower arms.

Furthermore, the outer wall surface of the upper groove wall of the insertion groove is provided with a plurality of matching parts protruding upwards, the bottom surface of the main body part of the driving part is provided with a plurality of positioning parts, and the matching parts are matched with the positioning parts.

Furthermore, the insulating body is provided with a top wall, a bottom wall and a pair of side walls, the upper groove wall of the insertion groove is of a sunken structure compared with the top wall, and the insertion groove is formed between the upper groove wall and the bottom wall of the insulating body.

Furthermore, the top wall of the insulating body is also provided with an observation port, and the observation port is positioned above the placement groove and penetrates through the placement groove downwards; the top wall is also provided with a limiting convex part which protrudes forwards horizontally, and the limiting convex part is positioned above the upper groove wall of the insertion groove and is used for being in snap fit with the main body part of the driving part.

Compared with the prior art, the FPC soft board is locked by arranging the locking parts at the two ends of the insulating body and utilizing the locking parts which protrude upwards from the locking parts and extend into the insertion grooves, and the two sides of the FPC soft board can be clamped by the locking parts after the FPC soft board is inserted into the insertion grooves, so that the insertion self-locking function is realized, and the FPC soft board can be locked without a driving part.

Drawings

Fig. 1 is a perspective view of the FPC connector of the present invention with the pressure plate closed.

Fig. 2 is an exploded view of the FPC electrical connector of the present invention.

Fig. 3 is a schematic view of the press plate and the locking member of the FPC electrical connector according to the present invention.

Fig. 4 is a schematic diagram of the FPC flexible board and the locking member of the FPC electrical connector of the present invention.

Fig. 5 is a schematic view of the FPC connector of the present invention without a pressing plate mounted thereon.

FIG. 6 is a schematic view of the FPC electrical connector according to the present invention inserted into an FPC board.

Detailed Description

Referring to fig. 1 to 6, the present invention provides an FPC electrical connector 100 for inserting an FPC flexible printed circuit 200, which includes an insulating body 10, a plurality of terminals 20 accommodated in the insulating body 10, a pair of locking members 30 mounted on two sides of the plurality of terminals 20, and a driving member 40 engaged with the insulating body 10. After the FPC flexible printed circuit 200 is inserted into the insulating housing 10, the FPC flexible printed circuit 200 is clamped by the terminals 20 to achieve electrical connection, and the locking member 30 can lock and position the FPC flexible printed circuit 200 to prevent the FPC flexible printed circuit 200 from separating from the insulating housing 10 to cause interruption of electrical connection, which will be described in detail below.

The insulating body 10 is provided with a top wall 11, a bottom wall 12 and a pair of side walls 13, an insertion groove 14 for inserting the FPC flexible printed circuit 200 is formed between the top wall 11 and the bottom wall 12, the insertion groove 14 is elongated and is provided with an upper groove wall 141 and a pair of side groove walls 142, as shown in fig. 2, the upper groove wall 141, the side groove walls 142 and the bottom wall 12 of the insulating body 10 jointly form the insertion groove 14, and the upper groove wall 141 is in a sunken structure compared with the top wall 11 of the insulating body 10 and is lower than the surface of the top wall 11, and in addition, the surface of the upper groove wall 141 is further provided with a plurality of upward protruding matching portions 143 for mounting and matching with the driving member 40. The two ends of the insertion groove 14 and the side wall 13 of the insulating body 10 are provided with a placement groove 15 for installing the driving member 40 and the locking member 30, the placement groove 15 penetrates through the insulating body 10 along the front-back direction, a step portion 151 for supporting the locking member 30 is further arranged in the placement groove 15, the step portion 151 and the upper groove wall 141 of the insertion groove 14 are located at the same height, the locking member 30 can be supported by the step portion and the upper groove wall, a placement channel 152 extending backwards is arranged between the step portion and the locking member 30, the driving member 40 can be installed, and a certain moving space can be provided for the driving member 40. In addition, in order to increase the operation convenience, the top wall 11 of the insulating body 10 is further provided with an observation port 16, the observation port 16 is located right above the installation channel 152 and downwardly penetrates through the installation channel 152, so that an operator can conveniently and downwardly observe the locking condition of the locking member 30 and the FPC flexible printed circuit board 200 in the installation channel 152.

The locking member 30 has a fixing portion 31 and a locking portion 32 protruding downward into the insertion groove 14, the fixing portion 31 is used for being clamped on the insulating body 10 to realize mutual fixing, and the locking portion 32 is clamped downward into the notches 201 at two sides of the FPC flexible printed circuit board 200, as shown in fig. 4, so as to realize position limitation of the FPC flexible printed circuit board 200; in addition, the front side of the locking portion 32 is provided with a guiding edge 321 which is obliquely arranged so as to increase the smoothness when the FPC flexible printed circuit board 200 is inserted head on, and the rear side of the locking portion 32 is provided with a stopping edge 322 which is vertically arranged so as to prevent the locking portion 32 from easily separating from the notch 201 of the FPC flexible printed circuit board 200.

In the preferred embodiment of the present invention, the locking element 30 is further provided with a resilient arm 33 connecting the fixing portion 31 and the locking portion 32, the resilient arm 33 includes a pair of upper arms 331 extending horizontally forward from the fixing portion 31 and a pair of lower arms 332 extending backward from the ends of the upper arms 331, the upper arms 331 and the lower arms 332 are disposed in an up-down corresponding manner, the two upper arms 331 are parallel to each other with a gap therebetween, and the two lower arms 332 are parallel to each other with a gap therebetween, so as to increase the resilience of the upper arms 331 and the lower arms 332. The locking portion 32 is integrally connected to the lower arm 332, and is formed by extending downward from one side edge of the lower arm 332, and can displace along with the elastic deformation of the lower arm 332, so as to be clamped into the notch 201 of the FPC flexible printed circuit 200 or separated from the notch 201. In addition, the lower arm 332 of the elastic arm 33 is supported on the step 151 in the seating groove 15 and the upper groove wall 141 of the insertion groove 14.

The driving member 40 is provided with a longitudinal main body portion 41 and a pair of driving arms 42 extending from two ends of the main body portion 41, the main body portion 41 is mounted on the upper groove wall 141 of the inserting groove 14, the main body portion 41 is provided with a limiting concave portion 43 and an operating portion 44, the limiting concave portion 43 and the operating portion 44 are respectively formed on two sides of the main body portion 41, the limiting concave portion 43 faces the top wall 11 of the insulating body 10 and is used for being in snap fit with the limiting convex portion 17 on the top wall 11 of the insulating body 10, so that the mutual position location with the top wall 11 of the insulating body 10 is realized, and the operating portion 44 protrudes outwards and deviates from the top wall 11 of the insulating body 10, so that an operator can turn over the driving member 40; in addition, the bottom surface of the main body 41 of the driving member 40 is further provided with a plurality of positioning portions 45 to be positioned in cooperation with the protruding engaging portions 143 on the upper groove wall 141 of the inserting groove 14. The driving arm 42 is inserted into the placing grooves 15 at two ends of the inserting groove 14 and located below the elastic arm 33, specifically, located in the placing channel 152 below the lower arm 332, the end of the driving arm 42 is provided with an arc surface 46 abutting against the bottom of the placing channel 152 to facilitate smooth turning around the arc surface, the driving arm 42 is further provided with an arc blocking portion 47 far away from the end, and the arc blocking portion 47 is located between the two upper arms 331 of the elastic arm 33, as shown in fig. 3.

When the FPC flexible board 200 is inserted, the FPC flexible board 200 itself does not interfere or contact with the driving member 40, but is directly inserted into the insertion groove 14, and after entering the insertion groove 14, the front end edge of the FPC flexible board 200 abuts against the locking portion 32 of the locking member 30, and forces the locking portion 32 to elastically deform and lift upward, until the notches 201 at the two sides of the FPC flexible board 200 are inserted to the positions of the locking portion 32, the locking portion 32 returns downward and is clamped into the notch 201, so as to lock the FPC flexible board 200, and the FPC flexible board 200 is difficult to automatically separate from the locking relationship with the locking member 30. In the whole inserting process, the driving member 40 does not intervene, that is, once the FPC flexible printed circuit 200 is completely inserted into the inserting groove 14, the self-locking effect can be automatically realized without the need of compressing and fixing the driving member 40. If the FPC flexible printed circuit 200 is to be pulled out or separated from the locking relationship, the driving arm 42 of the driving member 40 is only required to be turned upwards to push the elastic arm 33 upwards, so that the locking portion 32 integrated with the elastic arm 33 is forced to be lifted upwards and separated from the notches 201 at the two sides of the FPC flexible printed circuit 200, and at this time, the FPC flexible printed circuit 200 can be smoothly pulled out of the inserting groove 14.

In summary, the utility model arranges the locking elements 30 at the two ends of the insulating body 10, and locks the FPC flexible printed circuit board 200 by the locking portions 32 protruding into the insertion groove 14 from the locking elements 30, and the FPC flexible printed circuit board 200 can be locked at the two sides by the locking portions 32 after being inserted into the insertion groove 14, thereby realizing the function of insertion and self-locking, and locking the FPC flexible printed circuit board 200 without turning over the driving element 40.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and those skilled in the art can make many variations and modifications of the present invention without departing from the scope of the present invention as defined in the appended claims.

Claims

1. An FPC electric connector comprises an insulating body, a terminal and a locking piece which are accommodated in the insulating body, and a driving piece which is arranged on the insulating body, and is characterized in that the insulating body is provided with an insertion groove for inserting an FPC and a pair of arrangement grooves which are positioned at the outer sides of two ends of the insertion groove, and the locking piece is arranged in the arrangement grooves and is provided with a locking part which protrudes into the insertion groove; the driving piece is positioned outside the insertion groove and is provided with a main body part arranged above the upper groove wall of the insertion groove and a pair of driving arms inserted in the placing groove.

2. The FPC electrical connector of claim 1, wherein: the driving arm is positioned below the locking piece and can push the locking part of the locking piece to move upwards by turning over the driving arm to disengage from the locking of the FPC.

3. The FPC electrical connector of claim 2, wherein: the installation groove is internally provided with an installation channel positioned below the locking fastener, the driving arm is inserted into the installation channel, the tail end of the driving arm is provided with an arc-shaped surface, and the tail end of the driving arm is abutted against the bottom of the installation channel and serves as a pivot for the driving arm to overturn.

4. The FPC electrical connector of claim 3, wherein: the lock catch piece is further provided with a fixing portion and an elastic arm for connecting the fixing portion and the lock catch portion, a step portion located on one side of the placement channel is further arranged in the placement groove, and the elastic arm is upwards supported by the step portion.

5. The FPC electrical connector of claim 4, wherein: the elastic arm comprises a pair of upper arms extending forwards and horizontally from the fixing part and a pair of lower arms extending backwards from the tail ends of the upper arms in a turnover mode, and the pair of lower arms abut against the step part and the upper groove wall of the inserting groove respectively.

6. The FPC electrical connector of claim 5, wherein: the lock catch part is connected with the lower arm in an integrated mode and formed by extending the edge of one side of the lower arm in a downward protruding mode, the front side of the lock catch part is provided with a guide edge which is arranged in an inclined mode, and the rear side of the lock catch part is provided with a stop edge which is arranged vertically.

7. The FPC electrical connector of claim 6, wherein: the upper arms and the lower arms are arranged in an up-down corresponding mode, the two upper arms are parallel to each other, gaps are reserved between the two upper arms, the two lower arms are parallel to each other, and gaps are reserved between the two lower arms.

8. The FPC electrical connector of claim 1, wherein: the outer wall surface of the upper groove wall of the insertion groove is provided with a plurality of matching parts protruding upwards, the bottom surface of the main body part of the driving piece is provided with a plurality of positioning parts, and the matching parts are matched with the positioning parts.

9. The FPC electrical connector of claim 8, wherein: the insulating body is provided with a top wall, a bottom wall and a pair of side walls, the upper groove wall of the inserting groove is of a sunken structure compared with the top wall, and the inserting groove is formed between the upper groove wall and the bottom wall of the insulating body.

10. The FPC electrical connector of claim 9, wherein: the top wall of the insulating body is also provided with an observation port, and the observation port is positioned above the placement groove and penetrates through the placement groove downwards; the top wall is also provided with a limiting convex part which protrudes forwards horizontally, and the limiting convex part is positioned above the upper groove wall of the insertion groove and is used for being in snap fit with the main body part of the driving part.