TWI672868B - Electrical connector - Google Patents

Abstract

The invention relates to an electrical connector having an insulating body, a plurality of conductive terminals, and a fixing And an insulating body having a terminal slot and a positioning slot formed by recessing from the bottom surface thereof and communicating with the terminal slot, the fixing member having a plurality of receiving passages corresponding to the terminal slots, before the conductive terminals are inserted into the corresponding terminal slots of the insulating body The fixing member is assembled into the positioning slot from the bottom to the top, each of the conductive terminals has an elastic clamping arm and a blocking portion disposed on opposite sides thereof, and the conductive terminal is loaded into the corresponding terminal slot and the receiving channel from the back to the front, and borrows The free end formed by the rearward protrusion of the holding arm and the insulating body are buckled to realize one positioning. After the conductive terminal is inserted into the insulating body, the fixing member is completely pressed into the positioning groove upward and resists the rear side of the blocking portion to achieve secondary positioning. .

Description

Electrical connector

The present invention relates to an electrical connector, and more particularly to an electrical connector having better structural strength and retention.

Conventional electrical connectors typically include a plurality or a single electrically conductive terminal and an insulative housing for carrying the electrically conductive terminal to insulate the electrically conductive terminal. However, in the conventional electrical connector, the conductive terminal is held by the elastic piece and the insulating seat body, and the fixing seat body needs to be provided with a fixing groove to be held by the elastic piece, so that the plastic structure of the insulating seat body is weak, and the conductive body is electrically conductive. The terminal is only fixed in the insulating body by the elastic piece, and the holding force in the insulating seat body is insufficient.

In view of this, it is indeed necessary to further improve the conventional electrical connector to solve the above problems.

It is an object of the present invention to provide an electrical connector having a good structural strength and retention.

In order to achieve the above object, the present invention provides an electrical connector having an insulative housing, a plurality of conductive terminals, a fixing member, and a cable mechanically and electrically connected to the conductive terminal, wherein the insulating body has a plurality of through holes arranged in the front-rear direction. a terminal groove and a positioning groove formed by recessing upward from the bottom surface thereof, wherein the positioning groove extends in a lateral direction of the insulating body and communicates with the terminal slot, and the conductive terminal is fixed In the corresponding terminal slot of the insulative housing, the fixing member is assembled into the positioning slot from the bottom up before the conductive terminal is inserted into the insulative housing, and has a plurality of receiving passages corresponding to the terminal slots, wherein each of the foregoing conductive terminals has a relative An elastic clamping arm and a blocking portion disposed on both sides of the height direction thereof, wherein the holding arm protrudes rearward to form a rear end thereof as a free end, and the conductive terminal is inserted into the corresponding terminal slot and the receiving passage from the rear to the front And positioning is achieved by the free end of the latching arm and the insulative housing being buckled. After the conductive terminal is inserted into the insulative housing, the fixing member is completely pressed upward into the positioning slot and resists the rear side of the blocking portion. Achieve secondary positioning.

According to a further improvement of the present invention, the conductive terminal has a main body segment, a contact portion on a front side of the main body segment, and a riveting portion on a rear side of the main body segment, and the main body segment has an upper wall and is located on the upper wall in a lateral direction. The side portion of the side and the bottom end of the corresponding side portion extend toward the plate body portion, and the pair of plate body portions are stacked in the height direction to form the blocking portion.

As a further improvement of the present invention, the conductive terminal further has a contact arm for contacting the mating terminal, and the contact arm is oppositely extended from the latching arm.

According to a further improvement of the present invention, the contact section has a docking space into which the mating terminal is inserted, and the contact arm protrudes forward into the mating space from a plate body portion located on the upper side of the pair of plate body portions.

According to a further improvement of the present invention, the conductive terminal further has a protection arm located outside the contact arm, and the protection arm protrudes forward from a plate body portion located on the lower side of the pair of plate body portions.

According to a further improvement of the present invention, a missing portion is formed between the main body segment and the contact portion, the latching arm is located in the missing portion in the front-rear direction, and the conductive terminal further has a side in the lateral direction of the latching arm. a guiding portion, the guiding portion is bent upward from the upper wall to form Insert into the guiding groove of the insulating body.

According to a further improvement of the present invention, the insulative housing has a plurality of protruding portions corresponding to the terminal slots, and the protruding portions protrude downwardly from the corresponding terminal slots to abut the free ends thereof behind the latching arms.

As a further improvement of the present invention, the fixing member has a retaining wall which is disposed on the front side thereof and protrudes upwardly. The front end surface of the retaining wall is located at the rear side of the blocking portion and abuts against the stopping surface of the insulating body.

As a further improvement of the present invention, the fixing member has a first snap block on both sides in a lateral direction thereof and a second snap block on a rear side thereof, the fixing member before the conductive terminal is inserted into the insulating body The first latching block is connected to the underside of the insulative housing, and the second latching block is positioned in the insulating body after the conductive terminal is inserted into the insulative housing.

According to a further improvement of the present invention, before the conductive terminal is inserted into the insulative housing, the first snap block is inserted into and restricted to the corresponding snap groove on both sides of the insulative housing to prevent the downward movement. After the conductive terminal is installed in the insulating body, the fixing member is moved upward by the upward pressure until the second fastening block enters and is locked in the corresponding terminal slot.

Compared with the prior art, before the conductive terminal is installed in the insulating body, the fixing member pre-assembles the lower side of the insulating body by the first fastening block disposed on both sides thereof, and the insulating terminal is mounted on the insulating body. After that, the conductive terminal is firstly positioned with the insulating body, and then the fixing member is completely pressed into the insulating body and positioned in the insulating body by the second snap block, and the conductive terminal is secondarily positioned, thereby increasing the insulating body. The structural strength and the retention of the conductive terminals in the insulating body.

100‧‧‧Electrical connector

1‧‧‧Insulating body

11‧‧‧ Main body

110‧‧‧ docking

112‧‧‧ top wall

113‧‧‧ bottom wall

114‧‧‧ side wall

116‧‧‧Snap slot

117‧‧‧ protruding parts

118‧‧‧ stop surface

12‧‧‧Terminal slot

121‧‧‧ guiding slot

13‧‧‧ positioning slot

14‧‧‧Lock arm

141‧‧‧diffuse

15‧‧‧Limited wall

16‧‧‧Limited slot

2‧‧‧Electrical terminals

20‧‧‧ docking space

21‧‧‧ main body

211‧‧‧上壁

212‧‧‧ side

213‧‧‧ Board Department

214‧‧‧Guide

215‧‧‧ card holding arm

22‧‧‧Contact section

221‧‧‧Contact arm

2210, 2240‧‧‧Contacts

223‧‧‧protective arm

224‧‧‧Contact beam

23‧‧‧ riveting section

24‧‧‧ missing

3‧‧‧Fixed parts

30‧‧‧ Containment passage

31‧‧‧ base

32‧‧‧Flange

33‧‧‧First snap block

34‧‧‧Second snap block

35‧‧‧Retaining wall

36‧‧‧Limited blocks

4‧‧‧ Cable

The first figure is an assembled view of the electrical connector of the present invention.

The second figure is an exploded perspective view of the electrical connector shown in the first figure.

The third figure is a partial assembly diagram when the electrical connector is not connected to the cable shown in the second figure.

The fourth figure is a perspective view of the insulative body of the electrical connector shown in the first figure.

The fifth figure is a perspective view of the fixing member of the electrical connector shown in the second figure.

The sixth figure is a view of the other view of the fixing member shown in the fifth figure.

Figure 7 is a perspective view of the conductive terminals of the electrical connector shown in Figure 2.

The eighth figure is a view of another view of the conductive terminal shown in the seventh figure.

The ninth diagram is an assembled view of the electrical connector shown in the third figure.

Figure 10 is a cross-sectional view of the electrical connector shown in Figure IX.

Figure 11 is a cross-sectional view showing the fixing member of the electrical connector shown in the tenth figure completely pressed into the positioning groove.

The first embodiment to the eleventh embodiment show a preferred embodiment of the electrical connector 100 of the present invention. The electrical connector includes an insulative housing 1 and a plurality of conductive terminals 2 fixed in the insulative housing 1 and assembled in the insulative housing. a fixing member 3 of 1 and a cable 4 mechanically and electrically connected to the aforementioned conductive terminal 2.

Referring to FIG. 1 to FIG. 4 and the ninth to eleventh drawings, the insulative housing 1 has a plurality of terminal slots 12 extending through the front-rear direction and a positioning slot 13 formed by recessing from the bottom surface thereof. In the present embodiment, the insulative housing 1 has a main body portion 11 and a plurality of the terminal grooves 12 through which the main body portion 11 is inserted in the front-rear direction, and the positioning groove 13 formed by recessing the bottom surface of the main body portion 11 upward. After the terminal slot 12 penetrates from the abutting surface 110 of the insulative housing 1 to the insulative housing 1 In the embodiment, the terminal groove 12 includes upper and lower rows, and the upper and lower rows of terminal slots 12 are correspondingly arranged in the height direction and aligned.

The positioning slot 13 extends in the lateral direction of the insulative housing 1 and communicates with the terminal slot 12, the conductive terminal 2 is fixed in the corresponding terminal slot 12 of the insulative housing 1, and the fixing member 3 is inserted into the insulative housing 1 at the conductive terminal 2. It is previously assembled into the positioning groove 13 from the bottom to the top, and has a plurality of receiving passages 30 corresponding to the terminal slots 12.

The main body portion 11 has oppositely disposed top and bottom walls 112 and 113 and a pair of side walls 114 connecting the top and bottom walls 112 and 113. The positioning groove 13 is formed on the bottom wall 113 of the insulative housing 1. The latching groove 116 is formed on the pair of sidewalls 114. The latching groove 116 is recessed inwardly from the outer surface of the corresponding sidewall 114 to penetrate the latching groove 116. The latching groove 116 communicates with the positioning slot 13. The positioning groove 13 is recessed upward from the lower surface of the bottom wall 113 and communicates with the terminal groove 12. The latching slots 116 are symmetrically disposed on opposite sides of the insulative housing 1 .

The main body portion 11 of the insulative housing 1 further has a plurality of protruding portions 117 disposed in one-to-one correspondence with the terminal slots 12, and the protruding portions 117 are downwardly protruded from the corresponding terminal slots 12.

The front end of the insulative housing 1 further has a resilient latching arm 14 . The rear end of the latching arm 14 is a free end and can be moved in a height direction under the action of external pressure. The rear side of the insulative housing 1 further has a restriction on the latching arm 14 . One of the pair of limiting walls 15 is spaced apart in the lateral direction and is disposed on two sides of the latching arm 14 , and the pair of limiting walls 15 are located at the latching arm 14 . Corresponding to the upper side of the protruding portion 141, the locking arm 14 is prevented from being overturned during the insertion and removal of the electrical connector 100 and the mating connector (not shown).

As shown in the second and fourth figures, the terminal groove 12 has a height-increasing guide groove 121 in the height direction as viewed from the rear end surface of the insulative housing 1, and the guide groove 121 is located at the terminal. The groove 12 extends in one of the lateral directions and extends toward the opposite side. In the present invention, the width of the aforementioned guide groove 121 extending toward the other side is not limited.

Referring to FIG. 2, FIG. 3, FIG. 7 and FIG. 8 and the tenth and eleventh drawings, the conductive terminals 2 are assembled from the rear to the front and are received in the corresponding terminal slots 12, and In the embodiment shown in the present invention, the conductive terminal 2 includes two rows arranged in the height direction, and the plurality of first conductive terminals 12 in each row are arranged side by side in the lateral direction. In other embodiments, the foregoing conductive terminals 2 may also include three rows or even more rows arranged in the height direction.

Each of the foregoing conductive terminals 2 has a main body section 21, a contact section 22 on the front side of the main body section 21, and a riveting section 23 on the rear side of the main body section 21 to be connected to the cable 4, and the contact section 22 of the aforementioned conductive terminal 2 has The docking space 20 for the docking terminal to be inserted.

The main body segment 21 has an upper wall 211, side portions 212 located on both sides of the upper wall 211 in the lateral direction, and a pair of plate body portions 213 extending from the bottom ends of the corresponding side portions 212. In this embodiment, the foregoing The plate body portions 213 are stacked in the height direction to jointly form a blocking portion; in other embodiments, the foregoing blocking portions may also be other blocking structures located on the lower side of the aforementioned side portions 212.

The main body segment 21 further has a guiding portion 214 extending in the height direction and an elastic holding arm 215 extending in a direction approaching the riveting section 23. The blocking portion is disposed opposite to the latching arm 215 on both sides of the conductive terminal 2 in the height direction. The guiding portion 214 is disposed on one side of the clamping arm 215 in the lateral direction, and the guiding portion 214 is bent upward from the upper wall 211 and is from the corresponding side in the terminal slot 12 (ie, A side of the guiding groove 121 is inserted and inserted through the guiding groove 121 of the insulative housing 1. In this embodiment, the guiding portion 214 is formed by tearing one of the side portions 212 and bending upward. In other embodiments, the guiding portion 214 may be formed by other means.

Referring to FIG. 11 and FIG. 11 , in the height direction, the guiding portion 214 is The upper end surface is higher than the upper end surface of the latching arm 215, and in the front-rear direction, the rear end surface of the latching arm 215 is located at the front side of the rear end of the guiding portion 214, so that when subjected to downward or forward external force, The guiding portion 214 can protect the holding arm 215 to prevent an external force from directly acting on the holding arm 215; and when the conductive terminal 2 is not inserted into the insulating body 1 and is concentrated, the guiding portion 214 It is possible to prevent the holding arms 215 from being hooked on each other and causing damage.

The latching arm 215 is formed upwardly and rearwardly to form a rear end thereof. The conductive terminal 2 is inserted into the corresponding terminal slot 12 and the receiving passage 30 from the rear to the front, and is freely provided by the aforementioned holding arm 215. The end is snapped to the insulative housing 1 to achieve one positioning. Specifically, the protruding portion 117 protruding downward from the terminal groove 12 abuts against the free end of the holding arm 215 from the rear. After the conductive terminal 2 is inserted into the insulative housing 1, the fixing member 3 is completely pressed upward into the positioning groove 13 and resists the rear side of the blocking portion to achieve secondary positioning.

The contact section 22 has a contact arm 221 that is in contact with the mating terminal, and the contact arm 221 is oppositely extended from the latching arm 215. In the present embodiment, the contact arm 221 protrudes into the abutting space 20 from a plate body portion 213 located on the upper side of the pair of plate body portions 213. The front end of the contact arm 221 is a free end and is inclined upward. It is provided that the elastic contact of the contact arm 221 is achieved in this way, and the contact arm 221 is provided with a contact portion 2210 which protrudes upward and is curved in a position close to the free end thereof.

The contact segment 22 further has a contact beam 224 at the top thereof and protruding toward the abutting space 20. The front end of the contact beam 224 is connected to the top of the contact portion 22, and the contact beam 224 is disposed facing the contact arm 221. The contact portion 2240 disposed on the contact beam 224 protrudes from the contact portion 2210 disposed on the contact arm 221 to achieve reliable double-sided contact with the mating terminal, thereby increasing the docking time. Reliability of electrical contact.

The foregoing conductive terminal 2 further has a protection arm 223 located outside the contact arm 221, front The protective arm 223 is formed to protrude forward from one of the plate body portions 213 located on the lower side of the pair of plate body portions 213.

A missing portion 24 is formed between the main body segment 21 and the contact portion 22, and the holding arm 215 is located in the missing portion 24 in the front-rear direction.

Referring to the fifth, sixth, and tenth and eleventh figures, the fixing member 3 has a base 31, a flange 32 extending forward from a lower edge of the front end of the base 31, and a lateral direction thereof. The first latching block 33 on the upper side and the second latching block 34 on the rear side thereof are formed to protrude rearward from the rear end surface of the base body 31.

The fixing member 3 further has a retaining wall 35 protruding upwardly from the front side thereof and a limiting block 36 protruding from the rear side of the rear end surface. The front end surface of the retaining wall 35 is located at the rear side of the blocking portion and abuts against the foregoing insulation. a stop surface 118 of the body 1 , wherein the limiting block 36 is spaced apart from each other in a lateral direction, and in the lateral direction, the limiting block 36 and the second fastening block 34 are offset from each other, and a pair of the foregoing The two snap blocks 34 are located between the pair of the aforementioned limit blocks 36. A pair of limiting slots 16 are formed in the bottom of the insulative housing 1 to communicate with the positioning slots 13 to receive and position the corresponding limiting blocks 36, respectively.

Before the conductive terminal 2 is placed in the insulative housing 1, the fixing member 3 is connected to the lower side of the insulative housing 1 by the first latching block 33, after the conductive terminal 2 is inserted into the insulative housing 1 by the foregoing The second snap block 34 is positioned within the insulative housing 1 described above.

Specifically, before the conductive terminal 2 is placed in the insulative housing 1, the fixing member 3 is preloaded into the positioning slot 13 of the insulative housing 1 from the bottom, and the first latching block 33 is inserted and limited. The two sides of the corresponding insulative housings 1 are respectively prevented from moving downward (as shown in FIG. 10), and the second fastening block 34 is located on the lower side of the corresponding terminal slot 12, as shown in FIG. 9 and FIG. The state in which the aforementioned fixing member 3 is preloaded into the insulative housing 1 is shown. After the conductive terminal 2 is inserted into the insulative housing 1, the fixing member 3 is moved upward by the upward pressure until the second latching block 34 enters and is locked to the corresponding terminal slot 12. Inside (as shown in Figure 11).

The fixing member 3 of the electrical connector 100 of the present invention is pre-installed in the insulative housing 1 before the conductive terminal 2 is placed in the insulative housing 1 to prevent the loss of the fixing member 3, and the conductive terminal 2 is first loaded into the insulative housing 1 The positioning of the fixing member 3 is completely pressed into the positioning slot 13 by the clamping arm 215 and the insulative housing 1 , and the second locking block 34 and the terminal slot 12 are supported by the second locking block 34 and the terminal slot 12 . The mating is locked in the positioning groove 13 and is resisted at the rear end of the blocking portion of the conductive terminal 2 to achieve secondary positioning. Thus, the structural strength of the insulating body 1 and the conductive terminal 2 can be increased. The holding force in the insulating body 1 enhances the reliability and stability of the electrical connection.

It is to be understood that the equivalents of the invention are intended to be included within the scope of the invention as claimed.

Claims (10)

An electrical connector having an insulative housing, a plurality of conductive terminals, a fixing member, and a cable mechanically and electrically connected to the conductive terminal, wherein the insulating body has a plurality of terminal slots penetratingly disposed in the front-rear direction and recessed upwardly from the bottom surface thereof The positioning slot extends in the lateral direction of the insulative housing and communicates with the terminal slot. The conductive terminal is fixed in the corresponding terminal slot of the insulative housing, and the fixing component is assembled from the bottom to the top before the conductive terminal is inserted into the insulative housing. The positioning slot has a plurality of receiving passages corresponding to the terminal slots, wherein each of the conductive terminals has an elastic holding arm and a blocking portion disposed opposite to each other in a height direction thereof, and the holding arm protrudes rearward. The conductive terminal is inserted into the corresponding terminal slot and the receiving passage from the rear to the front, and the positioning is achieved by the free end of the holding arm and the insulating body being buckled, and the conductive terminal is mounted on the conductive terminal. After entering the insulating body, the fixing member is completely pressed upward into the positioning groove and resists the foregoing blocking The rear side in order to achieve secondary positioning. The electrical connector of claim 1, wherein the conductive terminal has a main body segment, a contact portion on a front side of the main body segment, and a riveting portion on a rear side of the main body segment, the main body segment having an upper wall and an edge The lateral direction is located at a side portion on both sides of the upper wall and a pair of plate body portions extending from the bottom end of the corresponding side portion, and the pair of plate body portions are stacked in the height direction to form the blocking portion. The electrical connector of claim 2, wherein the conductive terminal further has a contact arm for contacting the mating terminal, and the contact arm extends in opposite directions from the latching arm. The electrical connector of claim 3, wherein the contact segment has a docking space for the mating terminal to be inserted, and the contact arm protrudes forward from a plate body portion of the pair of upper plate portions Within the aforementioned docking space. The electrical connector of claim 4, wherein the conductive terminal further has a protection arm located outside the contact arm, and the protection arm is forward from a plate body portion located on a lower side of the pair of plate body portions The protrusion is formed. The electrical connector of claim 2, wherein a gap is formed between the main body segment and the contact segment, the latching arm is located in the missing portion in the front-rear direction, and the conductive terminal further has the latching The guiding portion of the arm on one side in the lateral direction, the guiding portion is bent upward from the upper wall to be inserted into the guiding groove of the insulating body. The electrical connector of claim 2, wherein the insulative housing has a plurality of protruding portions corresponding to the terminal slots, and the protruding portion protrudes downwardly from the corresponding terminal slot to abut the rear of the latching arm. Its free end. The electrical connector of claim 7, wherein the fixing member has a retaining wall that is disposed on the front side thereof and protrudes upwardly, and the front end surface of the retaining wall is located at a rear side of the blocking portion and abuts against the insulating body. Stop surface. The electrical connector of claim 1, wherein the fixing member has a first snap block on both sides in a lateral direction thereof and a second snap block on a rear side thereof, and the conductive terminal is mounted Before the insulative housing, the first fastening block is connected to the lower side of the insulative housing, and the second fastening block is positioned in the insulating body after the conductive terminal is inserted into the insulative housing. The electrical connector of claim 9, wherein the first fastening block is inserted into the corresponding snap groove on both sides of the insulating body to prevent the downward movement before the conductive terminal is inserted into the insulating body. The second fastening block is located on the lower side of the corresponding terminal slot. After the conductive terminal is installed in the insulating body, the fixing member is moved upward by the upward pressure until the second buckle The block enters and snaps into the corresponding terminal slot.