CN218770148U

CN218770148U - Electrical connector

Info

Publication number: CN218770148U
Application number: CN202122793722.5U
Authority: CN
Inventors: 王�华; 张晓明; 史广星
Original assignee: KUNSHAN 3E ELECTRONICS CO Ltd
Current assignee: KUNSHAN 3E ELECTRONICS CO Ltd
Priority date: 2021-11-15
Filing date: 2021-11-15
Publication date: 2023-03-28
Anticipated expiration: 2031-11-15

Abstract

The utility model discloses an electric connector, including insulator and the several conductive terminal and the elasticity reinforcement of fixing in insulator, insulator is equipped with along longitudinally extended slot and along the opening that transversely runs through insulator forward. The conductive terminal is provided with a holding part held on the insulating body and a contact arm extending into the slot from the holding part, the elastic reinforcing piece is held on the opening part and is provided with a contact end part extending into the slot, and the contact end part is positioned at the transverse front end of the contact arm. The slot is provided with a first accommodating part for accommodating the contact arm and the contact end part and a second accommodating part positioned at the transverse rear part of the contact arm, the first accommodating part and the second accommodating part are communicated with each other, and the height of the first accommodating part in the vertical direction is greater than that of the second accommodating part. Above-mentioned setting has avoided producing the clearance between traditional flat conductor and band plate flat conductor and the electric connector for electric connector can both stably switch on with above-mentioned arbitrary flat conductor and be connected.

Description

Electrical connector

Technical Field

The present invention relates to an electrical connector, and more particularly to an electrical connector for connecting a flat conductor to a substrate.

Background

Since the electrical connector can connect the units in the electronic device and the substrate in various forms, it is generally mounted on many electronic devices, and conventional FPC (Flexible printed circuits), FFC (Flexible flat cable), and the like (hereinafter referred to as "flat conductors") are also electrically connected to the substrate through the electrical connector. In recent years, with the development of higher functionality and higher functionality of electronic devices, flat conductors are also required to be capable of higher-frequency signal transmission and higher-speed transmission, flat conductors having electromagnetic interference (EMI) resistance are produced therefrom, and such flat conductors generally have a conductive member (hereinafter referred to as "flat conductor with plate") provided in a stack.

Meanwhile, since the flat ribbon conductors generally have a larger thickness than conventional flat conductors, an electrical connector capable of being plugged with the flat ribbon conductors can also be plugged with the conventional flat conductors. However, when the conventional flat conductor is fitted to the electrical connector with the flat conductor, a gap is generated between the conventional flat conductor and an inner wall of the slot of the electrical connector, so that the fitting state becomes unstable. In this case, a method of attaching a tape to a conventional flat conductor to eliminate a gap may be considered, but this method requires a manual tape attaching operation, which is time-consuming and inefficient.

Therefore, there is a need for a new electrical connector to overcome the above-mentioned drawbacks.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an electric connector, its connection reliability is high and can double-purpose multiple flat conductor.

In order to achieve the above purpose, the utility model adopts the following technical scheme: an electric connector is used for connecting a flat conductor to a substrate and comprises an insulating body, a plurality of conductive terminals and elastic reinforcements, wherein the conductive terminals and the elastic reinforcements are fixedly held in the insulating body, the insulating body is provided with a slot extending along the longitudinal direction, and the slot is provided with an opening part which penetrates through the insulating body forwards along the transverse direction. The conductive terminal is provided with a holding part which is held on the insulating body and a contact arm which extends into the slot from the holding part, the elastic reinforcer is held on the opening part and is provided with a contact end part which extends into the slot, and the contact end part is positioned at the transverse front end of the contact arm. The slot is provided with a first accommodating part for accommodating the contact arm and the contact end part and a second accommodating part positioned at the transverse rear part of the contact arm, the first accommodating part and the second accommodating part are communicated with each other, and the height of the first accommodating part in the vertical direction is greater than that of the second accommodating part.

In a preferred embodiment, the flat conductor is provided with a first connecting portion at a transverse rear end and a second connecting portion at a transverse front end, the second connecting portion having a thickness greater than that of the first connecting portion; when the flat conductor is inserted into the slot, the transverse rear end of the first connecting part is clamped in the second accommodating part.

In a preferred embodiment, the first connection portion is provided with a flat insulating base material and a conductive pad on the insulating base material, and the second connection portion is provided with the insulating base material and a conductive member on the insulating base material; when the flat conductor is inserted into the slot, the contact arm is connected to the conductive pad, and the contact end is connected to the conductive member.

In a preferred embodiment, the insulating body is provided with a top wall and a bottom wall extending along a longitudinal direction and two side walls connected to two longitudinal sides of the top wall and the bottom wall, and the top wall, the bottom wall and the two side walls are enclosed to form the slot.

In a preferred embodiment, the holding portion of the conductive terminal is fixed to the bottom wall and extends in a transverse direction, the contact arm is provided with a bending portion bending backward from a transverse front end of the holding portion and a contact portion extending into the first accommodating portion in a backward direction from the bending portion, and the contact portion is connected to the first connecting portion.

In a preferred embodiment, the elastic reinforcement is provided with a reinforcing portion fixed to the bottom wall and a welding portion extending from the reinforcing portion to the bottom wall, the contact end portion is inclined backward from the transverse front end of the reinforcing portion to extend into the insertion slot, and the contact end portion is connected to the second connecting portion.

In a preferred embodiment, the electrical connector further includes an elastic locking member for locking the flat conductor, the flat conductor is provided with locking grooves located at two longitudinal sides of the first connecting portion, the elastic locking member is provided with an elastic arm moving relative to the insulating body and a locking protrusion protruding upwards from the elastic arm, and when the flat conductor is inserted into the slot, the locking protrusion is locked in the locking groove.

In a preferred embodiment, the elastic locking member is provided with an operating part extending in the longitudinal direction, the elastic arms are connected to two longitudinal ends of the operating part, and when the operating part is pressed, the elastic arms are driven to make the clamping protrusions separate from the clamping grooves.

In a preferred embodiment, the insulating body is provided with a recess recessed downward from a top surface of the top wall, the operating portion is provided with a pressing portion housed in the recess and a rear plate portion bent downward from a lateral rear side of the pressing portion, and the elastic arms are connected to both longitudinal ends of the rear plate portion.

In a preferred embodiment, the insulating body is provided with a through groove vertically penetrating through the top wall, and when the flat conductor is inserted into the slot, the clamping protrusion and the clamping groove are both arranged corresponding to the through groove.

Compared with the prior art, the utility model discloses following beneficial effect has: the slot is provided with a first accommodating part for accommodating the contact arm and the contact end part and a second accommodating part positioned at the transverse rear part of the contact arm, the first accommodating part and the second accommodating part are communicated, the first accommodating part is convenient for the insertion of the flat conductor with the plate, and the second accommodating part is used for clamping and fixing the first connecting part when the flat conductor with the plate or the traditional flat conductor is finally inserted, so that the electric connector is also used for connecting the traditional flat conductor with the plate. Simultaneously, first portion of holding is highly greater than the height of second portion of holding in vertical for can not produce great clearance between the inner wall of slot and the first connecting portion of traditional flat conductor, thereby improve the reliability of connecting.

Drawings

Fig. 1 is a perspective view of the electrical connector of the present invention.

Fig. 2 is an exploded view of the electrical connector shown in fig. 1.

Fig. 3 is a front view of the electrical connector shown in fig. 1.

Fig. 4 is a top view of the electrical connector shown in fig. 1.

Fig. 5 is a bottom view of the electrical connector shown in fig. 1.

Fig. 6 isbase:Sub>A cross-sectional view of the electrical connector shown in fig. 3 taken along the directionbase:Sub>A-base:Sub>A.

Fig. 7 is a perspective view of the resilient reinforcement member in the electrical connector shown in fig. 2.

Fig. 8 is a perspective view of the spring locking member of the electrical connector shown in fig. 2.

Detailed Description

Referring to fig. 1-8, an electrical connector 100 for connecting a flat conductor (not shown) to a substrate (not shown) is disclosed. The electrical connector 100 includes an insulative housing 10, a plurality of conductive terminals 20 retained in the insulative housing 10, a pair of resilient reinforcements 30 retained at the front end of the insulative housing 10, and a resilient locking member 40 retained at the rear end of the insulative housing 10. The insulation body 10 is mounted on the substrate and is provided with a slot 11 extending along the longitudinal direction, and the flat conductor is inserted into the slot 11.

In the present embodiment, the flat conductor is a flat conductor with a plate, that is, the flat conductor is provided with a first connection portion located at a rear end in the lateral direction and a second connection portion located at a front end in the lateral direction. The first connecting part is provided with a flat insulating base material and a conducting pad positioned on the insulating base material, and the second connecting part is provided with the insulating base material and a conducting component positioned on the insulating base material; therefore, the thickness of the second connecting part of the flat conductor is larger than that of the first connecting part.

Referring to fig. 2 to 5, the insulating body 10 is substantially rectangular and has a top wall 12 and a bottom wall 13 extending along a longitudinal direction and two side walls 14 connected to two longitudinal sides of the top wall 12 and the bottom wall 13, and the top wall 12, the bottom wall 13 and the two side walls 14 together enclose the slot 11. The slot 11 is provided with an opening 110 which penetrates the insulating body 10 forwards along the transverse direction, and the flat conductor is partially inserted into the slot 11 from the opening 110.

The plurality of conductive terminals 20 are arranged in a row along the longitudinal direction, and each conductive terminal 20 is provided with a holding portion 21 held in the insulating body 10, a contact arm 22 extending from the holding portion 21 into the slot 11, and a soldering pin 23 extending from the holding portion 21 out of the insulating body 10. The holding portion 21 is fixed on the bottom wall 13 and extends along the transverse direction, the contact arm 22 has a bending portion 221 bending backwards from the front end of the holding portion 21 and a contact portion 222 extending into the slot 11 from the bending portion 221 in a backward direction, and the contact portion 222 is used for connecting to a first connection portion of the flat conductor. The welding leg 23 extends downward from the rear end of the fixing portion 21 to the bottom wall 13, and the welding leg 23 is used for being welded on the substrate.

As shown in fig. 7, the elastic reinforcement 30 is fixed at the opening 110 of the insulating housing 10, and the elastic reinforcement 30 has a reinforcing portion 31 fixed at the bottom wall 13, a welding portion 32 extending from one longitudinal side of the reinforcing portion 31 to the bottom wall 13, a holding portion 33 extending from the welding portion 32 to the side wall 14 in the transverse direction, and a contact end portion 34 extending from the front end of the reinforcing portion 31 in the transverse direction to the slot 11. The bottom wall 13 is provided with a slot 131 for accommodating the reinforcing portion 31, and the reinforcing portion 31 is accommodated in the slot 131, which is beneficial to improving the strength of the bottom wall 13 of the insulating body 10.

The welding portion 32 extends downward from one longitudinal side of the reinforcing portion 31 to be welded to the substrate, and the welding portion 32 does not extend downward beyond the bottom surface of the bottom wall 13, so that the installation volume can be effectively reduced. The retaining portion 33 is retained in the sidewall 14, and enhances the strength of the sidewall 14 of the insulating housing 10 while strengthening the fixing of the elastic reinforcement 30 to the insulating housing 10. The contact end 34 protrudes out of the insulation body 10 from the transverse front end of the reinforcement portion 31 and bends backwards to extend into the slot 11, and the contact end 34 is located at the transverse front end of the contact arm 22 and is used for connecting to the second connecting portion of the flat conductor.

Specifically, as shown in fig. 5, the insertion groove 11 is provided with a first accommodating portion 11 and a second accommodating portion 112 which are communicated with each other, the first accommodating portion 111 is located at a transverse front end of the second accommodating portion 112, and a height of the first accommodating portion 111 in a vertical direction is greater than a height of the second accommodating portion 112. The first accommodating part 111 with a higher height facilitates the insertion of the flat strip conductor, and the second accommodating part 112 with a lower height facilitates the clamping and fixing of the first connecting part when the flat strip conductor or the conventional flat conductor is finally inserted, so as to reduce the gap between the flat strip conductor or the conventional flat conductor and the inner wall of the slot 11.

The second accommodating portion 112 is located at the transverse rear of the contact arm 22, and the contact arm 22 and the contact end portion 34 are accommodated in the first accommodating portion 111; when the flat conductor is inserted into the slot 11, the rear end of the first connection portion in the transverse direction is held in the second receiving portion 112, the contact arm 22 is connected to the conductive pad of the first connection portion, and the contact end portion 34 is connected to the conductive member of the second connection portion. As can be seen from the above, since the height of the first accommodating portion 111 is greater than that of the second accommodating portion 112 in the vertical direction, a large gap is not generated between the inner wall of the slot 11 and the first connection portion of the conventional flat conductor, so that the connection reliability is improved, and the electrical connector 100 is used for connecting the conventional flat conductor and the strip-plate flat conductor.

As shown in fig. 8, the elastic locking member 40 is used to lock the flat conductor and includes an operating portion 41 extending in the longitudinal direction, elastic arms 42 connected to both ends of the operating portion 41 in the longitudinal direction, and a fixing portion 43 fixed in the insulating body 10, wherein the elastic arms 42 are movable relative to the insulating body 10. The insulating body 10 is provided with a recess 121 recessed downward from the top surface of the top wall 12, the operating portion 41 is provided with a pressing portion 411 housed in the recess 121 and a rear plate portion 412 bent downward from the lateral rear side of the pressing portion 411, and the pressing portion 411 is used for pressing operation and does not exceed the top surface of the top wall 12, so as to satisfy the trend of miniaturization of the whole electrical connector 100. Meanwhile, the operation portion 41 is displaced along the outer surface of the insulating body 10 by the pressing portion 411, so that the operation portion 41 can be operated even when there is not enough space around the insulating body 10 for the elastic displacement of the operation portion 41.

The flat conductor is provided with clamping grooves positioned at two longitudinal sides of the first connecting part, and the elastic arm 42 is provided with a clamping bulge 421 protruding upwards from the elastic arm 42; when the flat conductor is inserted into the slot 11, the locking protrusion 421 is clamped in the locking groove, so that the flat conductor is difficult to be pulled out from the electrical connector 100, and the reliability of connection between the flat conductor and the electrical connector 100 is improved. Meanwhile, the elastic arms 42 are connected to two longitudinal ends of the rear plate portion 412 of the operation portion 41, that is, when the operation portion 41 is pressed, the elastic arms 42 are driven to move relative to the insulating body 10, so that the locking protrusions 421 are disengaged from the locking grooves; the operation section 41 can thereby perform operations such as locking and unlocking the flat conductors.

The insulation body 10 is further provided with a through groove 122 vertically penetrating through the top wall 12, when the flat conductor is inserted into the slot 11, the clamping protrusion 421 and the clamping groove are both arranged corresponding to the through groove 122, that is, the clamping protrusion 421 and the clamping groove can be observed through the through groove 122. The fixing portion 43 is provided with a bending portion 431 bent backward from the front end of the elastic arm 42 in the transverse direction and biased in the longitudinal direction, a fixing leg portion 432 extending backward from the bending portion 431 in the transverse direction, and a barb 433 on the fixing leg portion 432, wherein the fixing leg portion 432 is held in the side wall 14 of the insulating body 10 by the barb 433. Since the bending portion 431 and the elastic arm 42 are longitudinally offset, that is, the fixing portion 43 and the elastic arm 42 are longitudinally offset, the space occupied by the elastic locking piece 40 in the vertical direction is reduced, which contributes to the miniaturization of the electrical connector 100.

The utility model discloses in, slot 11 is equipped with the first portion 111 that holds of accepting contact arm 22 and contact end portion 34 and is located the second portion 112 that holds at the horizontal rear of contact arm 22, first portion 111 and second portion 112 communicate each other, first portion 111 is convenient for take the flat conductor's of board to insert, and the card of first connecting portion is held fixedly when second portion 112 supplies the flat conductor of board or the last time of inserting of traditional flat conductor, with electric connector 100 is used for traditional flat conductor and the flat conductor's of board to be connected concurrently. Meanwhile, the height of the first accommodating part 111 in the vertical direction is greater than that of the second accommodating part 112, so that a large gap is not generated between the inner wall of the slot 11 and the first connecting part of the conventional flat conductor, thereby improving the reliability of connection.

In summary, the above is only a preferred embodiment of the present invention, and the scope of the present invention should not be limited thereby, and all the simple equivalent changes and modifications made according to the claims and the content of the specification should still belong to the scope covered by the present invention.

Claims

1. An electric connector is used for connecting a flat conductor to a substrate, and comprises an insulating body, a plurality of conductive terminals and an elastic reinforcing piece, wherein the conductive terminals and the elastic reinforcing piece are fixedly held in the insulating body; the method is characterized in that: the slot is provided with a first accommodating part for accommodating the contact arm and the contact end part and a second accommodating part positioned at the transverse rear part of the contact arm, the first accommodating part and the second accommodating part are communicated with each other, and the height of the first accommodating part in the vertical direction is greater than that of the second accommodating part.

2. The electrical connector of claim 1, wherein: the flat conductor is provided with a first connecting part positioned at the transverse rear end and a second connecting part positioned at the transverse front end, and the thickness of the second connecting part is greater than that of the first connecting part; when the flat conductor is inserted into the slot, the transverse rear end of the first connecting part is clamped in the second accommodating part.

3. The electrical connector of claim 2, wherein: the first connecting part is provided with a flat insulating base material and a conducting pad positioned on the insulating base material, and the second connecting part is provided with the insulating base material and a conducting component positioned on the insulating base material; when the flat conductor is inserted into the slot, the contact arm is connected to the conductive pad, and the contact end is connected to the conductive member.

4. The electrical connector of claim 2, wherein: the insulating body is provided with a top wall and a bottom wall which extend along the longitudinal direction and two side walls which are connected to the two longitudinal sides of the top wall and the bottom wall, and the top wall, the bottom wall and the two side walls are arranged in an enclosing mode to form the slot.

5. The electrical connector of claim 4, wherein: the holding part of the conductive terminal is fixed on the bottom wall and formed by extending along the transverse direction, the contact arm is provided with a bending part which is bent backwards from the transverse front end of the holding part and a contact part which is inclined backwards from the bending part and extends into the first accommodating part, and the contact part is connected to the first connecting part.

6. The electrical connector of claim 4, wherein: the elastic reinforcing piece is provided with a reinforcing part fixedly held on the bottom wall and a welding part extending out of the bottom wall from the reinforcing part, the contact end part is inclined backwards from the transverse front end of the reinforcing part and extends into the slot, and the contact end part is connected to the second connecting part.

7. The electrical connector of claim 4, wherein: the electric connector is further provided with an elastic locking piece for clamping the flat conductor, the flat conductor is provided with clamping grooves located on the two longitudinal sides of the first connecting portion, the elastic locking piece is provided with an elastic arm moving relative to the insulating body and a clamping bulge protruding upwards from the elastic arm, and when the flat conductor is inserted into the slot, the clamping bulge is clamped in the clamping grooves.

8. The electrical connector of claim 7, wherein: the elastic locking piece is provided with an operation part extending along the longitudinal direction, the elastic arms are connected to the two longitudinal ends of the operation part, and when the operation part is pressed, the elastic arms are driven to enable the clamping protrusions to be separated from the clamping grooves.

9. The electrical connector of claim 8, wherein: the insulating body is provided with a concave part which is sunken downwards from the top surface of the top wall, the operating part is provided with a pressing part which is contained in the concave part and a rear plate part which is bent downwards from the transverse rear side of the pressing part, and the elastic arms are connected to the two longitudinal ends of the rear plate part.

10. The electrical connector of claim 7, wherein: the insulation body is provided with a through groove which vertically penetrates through the top wall, and when the flat conductor is inserted into the slot, the clamping protrusion and the clamping groove are both arranged corresponding to the through groove.