CN210111175U - Electrical connector - Google Patents

Abstract

The utility model discloses an electric connector, include: a plurality of first terminals; the first insulating body is provided with a rear wall and two side walls positioned at two opposite sides of the rear wall, the rear wall and the two side walls are encircled to form a butt joint space, the first terminals are accommodated in the rear wall and exposed in the butt joint space, the side walls are provided with an integrated outer base part and an elastic arm close to one side of the butt joint space, the elastic arm is provided with a locking part, an extending part and a connecting part, the locking part is positioned between the extending part and the connecting part, a first gap is formed between the extending part and the outer base part, a second gap is formed between the connecting part and the outer base part, and the width of the second gap is larger than that of the first gap.

Description

Electrical connector

[ technical field ] A method for producing a semiconductor device

The present invention relates to an electrical connector, and more particularly to an electrical connector with a snap-fit connector.

[ background of the invention ]

An electrical connector includes an insulative housing, a plurality of conductive terminals and two metal elastic members. The insulation body is provided with a rear wall and two side walls on two opposite sides of the rear wall, and a butt joint space is arranged between the rear wall and the two side walls. The conductive terminal is arranged on the rear wall and exposed out of the insulating body, and the two metal elastic pieces are respectively fixedly arranged on the two side walls and exposed out of the butting space. When the electric connector is butted with a butting connector, the butting connector enters the butting space, the butting terminals are butted with the conductive terminals, and the metal elastic piece buckles the butting connector, so that the butting connector is fixedly held in the butting space, and the transmission of signals is realized.

However, since the electrical connector is configured to fasten the mating connector by the metal elastic member, the manufacturing cost and the processing procedure of the electrical connector are increased, and since the metal elastic member is fixed to the side wall, when the electrical connector is repeatedly inserted into and mated with the mating connector, the metal elastic member may loosen relative to the side wall, and the metal elastic member is easily fatigue, the metal elastic member may not stably fasten the mating connector, so that the electrical connector and the mating connector may not be stably mated, thereby affecting the transmission performance of the electrical connector.

Therefore, there is a need to design an electrical connector to solve the above-mentioned technical problems.

[ Utility model ] content

An object of the utility model is to provide an elastic arm with outer base portion an organic whole setting for elasticity is detained and is held butt joint connector, thereby makes butt joint connector fixing in the electric connector in butt joint space.

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

an electrical connector, comprising: a plurality of first terminals; a first insulator, it is equipped with a back wall and is located two lateral walls of the relative both sides of back wall, the back wall with two the lateral wall encloses to establish and forms a butt joint space, and is a plurality of first terminal accept in the back wall just expose in the butt joint space, the lateral wall has an integrative outer basal portion and is close to a flexible arm of butt joint space one side, the flexible arm has a hasp portion, an extension and a connecting portion, hasp portion is located the extension with between the connecting portion, the extension with a first clearance has between the outer basal portion, connecting portion with a second clearance has between the outer basal portion, the width in second clearance is greater than the width in first clearance.

Furthermore, the elastic arm is provided with a bending part, the bending part is connected with the extending part, a third gap is arranged between the bending part and the rear wall, and the third gap is communicated with the first gap.

Furthermore, the elastic arm, the rear wall and the outer base are integrally formed, one end of the bending part, which is far away from the extending part, is connected with the rear wall, and one end of the connecting part, which is far away from the locking part, is connected with the outer base.

Furthermore, one end of the connecting part, which is far away from the locking part, is connected with the outer base part, a fourth gap is formed between one end of the extending part, which is close to the rear wall, and the fourth gap is communicated with the first gap and the butt joint space.

Further, the second gap is further recessed from a side of the outer base portion close to the connecting portion, the width of the connecting portion is equal to the width of the extending portion, and the width of the outer base portion close to the connecting portion is smaller than the width of the outer base portion close to the extending portion.

Further, the first insulating body is provided with a first bottom surface and a bump, and the bump extends downwards beyond the first bottom surface.

Furthermore, the first insulating body is provided with two second bottom surfaces, the second bottom surfaces are arranged on the outer base parts, the second bottom surfaces are higher than the first bottom surfaces, and a pair of fixing parts are respectively arranged on the two outer base parts and are exposed on the second bottom surfaces.

Further, a fifth gap is formed between the locking part and the outer base part, the fifth gap is communicated with the first gap and the second gap, and the first gap and the fifth gap are the same.

Further, the rear wall has a plurality of first terminal grooves, one side of each first terminal groove is provided with a groove, the grooves are communicated with the first terminal grooves, the first terminals are provided with a protruding thorn relative to the grooves, and the grooves block the protruding thorn forwards.

Furthermore, the butting connector butted with the butting connector is provided with a second insulating body, the second insulating body is provided with a plurality of second terminal grooves, a plurality of second terminals are arranged in the second terminal grooves, one side, close to the elastic arm, of the second insulating body is provided with a first guide surface, the second terminal grooves are provided with second guide surfaces corresponding to the first terminals, and the second guide surfaces are close to the rear wall relative to the first guide surfaces.

Further, the first guiding surface is an arc surface, and the first guiding surface is formed by the side edge of the insulating body in a concave manner towards the direction far away from the locking part.

Further, the second terminal slot has an upper inner wall surface and a lower inner wall surface which are oppositely arranged, the upper inner wall surface has a first step portion, and the lower inner wall surface has a second step portion opposite to the first step portion.

Furthermore, the second terminal is provided with a convex hull, and the first step portion is provided with an abdicating groove relative to the convex hull for abdicating the convex hull.

Furthermore, a positioning part is formed by extending from each outer base part to one side close to the butt joint space, and the butt joint connector is limited between the two positioning parts along the horizontal direction.

Further, the width of the extended portion in the vertical direction is smaller than the width of the locking portion, or/and the width of the extended portion in the horizontal direction is smaller than the width of the locking portion.

Compared with the prior art, the utility model discloses an electric connector has following beneficial effect:

the utility model provides an outer basal portion with the elastic arm sets up as an organic whole, just the extension with form between the outer basal portion first clearance, connecting portion with form between the outer basal portion the second clearance, the width in second clearance is greater than the width in first clearance. Therefore, the side wall and the elastic arm are integrally arranged, the processing procedure of the electric connector is simplified, the manufacturing cost of the electric connector is reduced, the elastic arm can be prevented from falling off from the side wall when the electric connector is connected with the butting connector in a plugging and butting mode for multiple times, the elastic force of the elastic arm can be increased due to the fact that the width of the second gap is larger than the width of the first gap, fatigue of the elastic arm is prevented after the electric connector is connected with the butting connector in a plugging and butting mode for multiple times, the butting connector cannot be stably fixed by the elastic arm, the electric connector and the butting connector cannot be stably butted, and the transmission performance of the electric connector is affected.

[ description of the drawings ]

Fig. 1 is an exploded perspective view of an electrical connector and a mating connector according to a first embodiment of the present invention;

fig. 2 is an exploded perspective view of the electrical connector and the mating connector according to the first embodiment of the present invention from another perspective;

fig. 3 is a perspective assembly view of the electrical connector and the mating connector according to the first embodiment of the present invention;

fig. 4 is a perspective assembly view of the first embodiment of the present invention with the electrical connector and the mating connector to the final position;

fig. 5 is a cross-sectional view of the first embodiment of the electrical connector and the mating connector of fig. 3 in the direction C-C;

fig. 6 is a cross-sectional view of the first embodiment of the electrical connector and the mating connector of fig. 3 taken in the direction D-D;

FIG. 7 is a perspective assembly view of the first embodiment of the electrical connector of FIG. 1;

fig. 8 is a cross-sectional view of the second dielectric body of fig. 1 in a direction a-a;

fig. 9 is a cross-sectional view of the second dielectric body of fig. 2 in the direction B-B;

fig. 10 is an exploded perspective view of a second embodiment of the electrical connector and a mating connector of the present invention;

fig. 11 is an exploded perspective view of a third embodiment of an electrical connector and a mating connector according to the present invention;

fig. 12 is an exploded perspective view of the third embodiment of the electrical connector and the mating connector of the present invention from another perspective;

fig. 13 is a top view of the third embodiment of the present invention when the electrical connector is mated with the mating connector.

Detailed description of the embodiments reference is made to the accompanying drawings in which:

[ detailed description ] embodiments

The invention will now be described in further detail with reference to specific embodiments and figures for a better understanding of the invention.

Fig. 1 to 9 show a first embodiment of the present invention.

As shown in fig. 1 and 4, the electrical connector a of the present invention is used to make butt contact with a mating connector B. The electrical connector a includes a first insulating body 1, a plurality of first terminals 2 fixed to the first insulating body 1, and two fixing members 3 mounted on the first insulating body 1.

As shown in fig. 1, 2 and 5, the first insulating body 1 has a rear wall 11 and two side walls 13 extending from two opposite sides of the rear wall 11, and the rear wall 11 and the two side walls 13 together enclose a mating space 12 penetrating upward, downward and forward. The docking space 12 is used for the docking connector B to be inserted in a horizontal direction from front to back or in a vertical direction from top to bottom. The rear wall 11 has a first top surface 111, a first bottom surface 112, and a front side surface 113 and a rear side surface 114 connecting the first top surface 111 and the first bottom surface 112. The rear wall 11 is provided with a plurality of first terminal grooves 115, the first terminal grooves 115 penetrate the front side surface 113 and the rear side surface 114 in a front-rear direction, and the first terminal grooves 115 penetrate the first top surface 111 and the first bottom surface 112 at positions close to the rear side surface 114 in an up-down direction. The rear wall 11 is recessed rearward from the front side surface 113 to form a plurality of grooves 116, the grooves 116 are located at one side of the first terminal groove 115 and are communicated with the first terminal groove 115, and the rear wall surface of the grooves 116 is located in front of the rear side surface 114 to block the first terminal 2 forward. The rear wall 11 further has a plurality of fixing grooves 117 extending from the first bottom surface 112 and the front side surface 113, the fixing grooves 117 are located between two adjacent first terminal grooves 115, and a rear wall surface of the fixing groove 117 is located in front of the rear side surface 114 for fixing the mating connector B.

As shown in fig. 1 and 2, the side walls 13 are formed by extending from two opposite sides of the rear wall 11, and each side wall 13 is provided with an outer base 131 and a resilient arm 132. The elastic arm 132 is integrally provided with the outer base 131, and the elastic arm 132 is closer to the docking space 12 than the outer base 131. The lower surface of the outer base 131 is provided with a bump 1311 and a second bottom surface 1312, the bump 1311 is located behind the second bottom surface 1312, and the lower surface of the bump 1311 is lower than the second bottom surface 1312. Each of the outer bases 131 further has a positioning groove 1313, the positioning groove 1313 is formed by recessing the front surface of the outer base 131 backward, and the positioning groove 1313 penetrates the second bottom surface 1312 downward to receive the fixing member 3.

As shown in fig. 1, fig. 2 and fig. 3, the elastic arm 132 is sequentially provided with a bending portion 1321, an extending portion 1322, a locking portion 1323 and a connecting portion 1324 from back to front. One end of the bent portion 1321 is connected to the front side surface 113, the other end is connected to the extending portion 1322, and a third gap 13211 is formed between the bent portion 1321 and the rear wall 11. The extending portion 1322 is located in front of the bending portion 1321, and a first gap 13221 is formed between the extending portion 1322 and the outer base 131, and the first gap 13221 is communicated with the third gap 13211. The locking portion 1323 is located in front of the extension 1322 and connected to the extension 1322, the locking portion 1323 has a locking protrusion 13231 at a side close to the docking space 12, the locking protrusion 13231 is located above the locking portion 1323, and the upper surface of the locking protrusion 13231 is flush with the upper surface of the elastic arm 132. The locking protrusion 13231 has a front guide surface 132311, a rear guide surface 132312 and a lower guide surface 132313 at the front, rear and lower sides, respectively. A fifth gap 13232 is formed between the side of the locking portion 1323 away from the mating space 12 and the outer base 131, and the fifth gap 13232 is communicated with the first gap 13221. The connecting portion 1324 is located in front of the locking portion 1323, one end of the connecting portion 1324 is connected to the locking portion 1323, the other end is connected to the outer base 131, a second gap 13241 is provided between the connecting portion 1324 and the outer base 131, the second gap 13241 is formed by further recessing the outer base 131 on the side close to the connecting portion 1324, and the width of the outer base 131 close to the connecting portion 1324 is smaller than the width of the outer base 131 close to the locking portion 1323 and the extension 1322. The first gap 13221, the second gap 13241, the third gap 13211, and the fifth gap 13232 communicate with each other, and the width of the second gap 13241 is larger than the widths of the first gap 13221, the third gap 13211, and the fifth gap 13232. The elastic arm 132, the rear wall 11 and the outer base 131 are integrally formed, a longitudinal guiding inclined plane is disposed above the front side surface 113, the bending portion 1321, the extending portion 1322 and the connecting portion 1324 of the elastic arm 132 are all provided with guiding inclined planes, the guiding inclined plane of the front side wall 13 is connected with the guiding inclined planes of the bending portion 1321 and the extending portion 1322, and the guiding inclined planes of the rear wall 11 and the elastic arm 132 are used for guiding the docking connector B to be vertically inserted into the docking space 12 from top to bottom.

As shown in fig. 1, 2 and 5, the first terminals 2 are flat, and each of the first terminals 2 has a first holding portion 21 and a first contact portion 22 extending forward from the first holding portion 21. The first holding portion 21 has a first soldering portion 211, and the first soldering portion 211 is located below the first holding portion 21 and protrudes from the first bottom surface 112 for soldering with a circuit board (not shown, the same below). The first holding portion 21 further has a protruding spike 212, the protruding spike 212 is formed by tearing and bending the plate surface of the first holding portion 21, and the protruding spike 212 is used for abutting against the rear wall surface of the groove 116 to prevent the first terminal 2 from moving backwards. The first contact portion 22 enters the mating space 12 through the first terminal groove 115 to be mated with the mating connector B. The first contact portion 22 is provided with a plurality of protruding blocks 221 near the first holding portion 21, and the protruding blocks 221 are configured to be in interference fit with the first terminal grooves 115, so that the first terminals 2 are fixed in the first terminal grooves 115.

As shown in fig. 1 and 2, the fixing member 3 is a flat plate, and the fixing member 3 is provided with a second welding portion 31, the second welding portion 31 is located on the cut-out surface of the fixing member 3 and is exposed downward from the second bottom surface 1312 for welding with the circuit board. A plurality of protruding points 32 are further arranged on the cutting surface of the fixing member 3, and the protruding points 32 are used for being in interference fit with the positioning grooves 1313, so that the fixing member 3 is fixed in the positioning grooves 1313.

As shown in fig. 1, 2 and 5, the mating connector B is configured to make mating contact with the electrical connector a. The docking connector B has a second insulating body 4, a plurality of second terminals 5 held on the second insulating body 4, and a plurality of cables 6 inserted into the second insulating body 4. The second insulating body 4 has a first side surface 41 and a second side surface 42, the first side surface 41 and the second side surface 42 are respectively provided with a first guiding surface 43 at one end close to the front side surface 113, the first guiding surface 43 is an arc surface, and is formed by the first side surface 41 being recessed toward the side far away from the latch protrusion 13231. When the mating connector B is horizontally inserted into the mating space 12 in the front-to-rear direction, the first guide surface 43 cooperates with the front guide surface 132311, so that the mating connector B is mated with the electrical connector a. The first side 41 and the second side 42 are further respectively provided with a fastening groove 44 corresponding to the locking protrusion 13231, and the fastening groove 44 penetrates through the upper surface of the second insulating body 4. When the mating connector B is inserted into the mating space 12, the locking protrusion 13231 is received in the locking slot 44, so that the electrical connector a and the mating connector B are stably mated. The rear surface of the second insulating body 4 is provided with a plurality of fixing portions 45 opposite to the fixing grooves 117, and when the electrical connector a is mated with the mating connector B, the fixing portions 45 are received in the fixing grooves 117 to prevent the mating connector B from moving up and down. The second insulating body 4 is further provided with a plurality of second terminal grooves 46 corresponding to the first terminal grooves 115, the second terminal grooves 46 are located between two adjacent fixing portions 45, and the second terminal grooves 46 penetrate the front surface and the rear surface of the second insulating body 4 in a front-rear direction. Each of the second terminal slots 46 is provided with two second guiding surfaces 461, and the second guiding surfaces 461 are disposed on the rear surface of the second insulating body 4 for guiding the first terminal 2 to enter the second terminal slots 46.

As shown in fig. 3, 4, 5 and 6, when the mating connector B is inserted into the mating space 12, the second guiding surface 461 and the first contact portion 22 are engaged first, so that the first contact portion 22 enters the second terminal groove 46 and is electrically connected to the second terminal 5. When the mating connector B is inserted into the mating space 12, the first guiding surface 43 and the front guiding surface 132311 of the locking protrusion 13231 cooperate with each other, so that the locking protrusion 13231 enters the locking groove 44, and the electrical connector a is stably mated with the mating connector B.

As shown in fig. 1, 2, 8 and 9, the second terminal groove 46 further has an upper inner wall surface 462 and a lower inner wall surface 463, the upper inner wall surface 462 is provided with a first step 4621, and the lower inner wall surface 463 is provided with a second step 4631 corresponding to the first step 4621. The first stepped portion 4621 cooperates with the second stepped portion 4631 to limit the excessive displacement of the second terminal 5. The front surface of the first step 4621 is recessed backward to form an abdicating groove 46211, the inner wall surface of the abdicating groove 46211 is located in front of the rear surface of the first step 4621, and the abdicating groove 46211 is used for the second terminal 5 to provide abdicating. The second insulating body 4 is further provided with a plurality of through grooves 47 recessed from the rear surface and the lower surface thereof, and the through grooves 47 are located behind the second stepped portion 4631 and communicate with the second terminal grooves 46. When the mating connector B is vertically inserted into the mating space 12 from top to bottom, the first terminals 2 enter the second terminal grooves 46 through the through grooves 47 to be electrically connected with the second terminals 5. The upper surface of the second insulating body 4 is recessed downward to form a plurality of limiting grooves 48, and the limiting grooves 48 are located behind the second step 4631 and are communicated with the second terminal grooves 46 to fix the second terminals 5.

As shown in fig. 1 and 6, the second terminals 5 are received in the second terminal slots 46, each of the second terminals 5 has a second holding portion 51 held in the second insulating housing 4, a wire fixing portion 53 located at the front and rear sides of the second holding portion 51, and a pair of holding arms 52, the holding arms 52 are used for holding the first contact portion 22, so that the first terminal 2 is electrically connected to the second terminal 5, and the wire fixing portion 53 is surrounded in a ring shape for receiving and holding the cable 6. The first holding portion 21 is provided with a convex protrusion 511, when the second terminal 5 is inserted into the second terminal groove 46, the convex protrusion 511 is engaged with the relief groove 46211, so that the second terminal 5 is inserted into the second terminal groove 46 without damaging the second insulating body 4, and when the second terminal 5 is inserted into the second terminal groove 46 to the final position, the convex protrusion 511 is engaged with the limiting groove 48 to fix the second terminal 5 in the second terminal groove 46.

As shown in fig. 10, the second embodiment of the electrical connector a is mated with the mating connector B, which is different from the first embodiment in that the rest of the structure and connection relationship are the same as those of the first embodiment: the side of the side wall 13 close to the docking space 12 extends from front to back to form the elastic arm 132, the end of the extension 1322 close to the rear wall 11 is a free end, and a fourth gap 13222 is formed between the end of the extension 1322 close to the rear wall 11 and the rear wall 11, and the fourth gap 13222 is communicated with the first gap 13221 and the docking space 12.

As shown in fig. 11 and 12, a third embodiment of the electrical connector a is mated with the mating connector B, which is different from the electrical connector a of the first embodiment in that the rest of the structure and connection relationship are the same as those of the first embodiment: each outer base 131 is provided with a positioning portion 1314 at a side close to the docking space 12, and the positioning portion 1314 is arranged at an end of the outer base 131 far away from the rear wall 11. Each positioning portion 1314 has a limiting surface 13141 on a side close to the docking space 12, and the connecting portion 1324 is flush with the limiting surface 13141 on a side close to the docking space 12 along the vertical direction, although in other embodiments, the limiting surface 13141 is closer to the horizontal center line of the docking space 12 than the connecting portion 1324, and the limiting surface 13141 is farther from the horizontal center line of the docking space 12 than the locking protrusion 13231. When the docking connector B is inserted into the docking space 12 from front to rear in the horizontal direction, the docking connector B is restrained between the two positioning parts 1314. The first side surface 41 and the second side surface 42 are first respectively abutted against the limiting surfaces 13141 of the two positioning portions 1314, so as to prevent the butting connector B from being obliquely inserted into the butting space 12. As the mating connector B continues to be inserted into the mating space 12, the first side 41 and the second side 42 abut against the two locking protrusions 13231. When the mating connector B is inserted into the mating space 12 to the final position, the locking protrusion 13231 is locked into the locking slot 44, and the electrical connector a is mated with the mating connector B.

As shown in fig. 11 and 12, the extension 1322 has a first notch 13223 and a second notch 13224, the first notch 13223 is formed by the extension 1322 being recessed toward a direction away from the insertion space on a side close to the docking space 12, and the second notch 13224 is formed by the bottom surface of the extension 1322 being recessed upward. The extension 1322 is vertically narrower than the locking portion 1323 because the extension 1322 is recessed with the first notch 13223, and the extension 1322 is horizontally narrower than the locking portion 1323 because the extension 1322 is recessed with the second notch 13224. When the mating connector B is inserted into or pulled out of the mating space 12 from front to back in the horizontal direction, the first side surface 41 and the second side surface 42 of the mating connector B respectively abut against the two locking protrusions 13231, so that the locking portions 1323 are subjected to a horizontal insertion force. Since the width of the extension 1322 in the horizontal direction is smaller than that of the locking portion 1323, the extension 1322 increases the elasticity of the elastic arm 132 in the horizontal direction, and the extension 1322 disperses a part of the insertion and extraction force applied to the locking portion 1323. Thereby reducing the insertion force on the locking protrusion 13231 and extending the life of the locking protrusion 13231. When the mating connector B is inserted into or pulled out of the mating space 12 from top to bottom in the vertical direction, the first side surface 41 and the second side surface 42 of the mating connector B respectively abut against the two locking protrusions 13231, so that the locking portions 1323 are subjected to a vertical pulling force. Since the extension 1322 has a width smaller than that of the locking portion 1323 in the vertical direction, the extension 1322 increases the elasticity of the elastic arm 132 in the vertical direction, and the extension 1322 does not disperse a part of the insertion and extraction force applied to the locking portion 1323. Thereby reducing the insertion force on the locking protrusion 13231 and extending the life of the locking protrusion 13231. To sum up, the utility model discloses electric connector A has following beneficial effect:

(1) the side wall 13 and the elastic arm 132 are integrally disposed, which not only simplifies the processing procedure of the electrical connector a and reduces the manufacturing cost of the electrical connector a, but also prevents the elastic arm 132 from falling off from the side wall 13 when the electrical connector a and the mating connector B are subjected to multiple insertion and extraction butt-joint, and because the width of the second gap 13241 is greater than the width of the first gap 13221, the elastic force of the elastic arm 132 can be increased, and the elastic arm 132 is prevented from fatigue after the electrical connector a and the mating connector B are subjected to multiple insertion and extraction butt-joint, so that the elastic arm 132 cannot stably hold the mating connector B, and the electrical connector a and the mating connector B cannot be stably butted, thereby affecting the transmission performance of the electrical connector a.

(2) The bump 1311 protrudes downwards beyond the first bottom surface 112, so that an abdicating space is provided between the first bottom surface 112 and the circuit board, when the electrical connector a is soldered to the circuit board, the abdicating space can be abdicating for solder paste, and the electrical connector a is prevented from being jacked upwards by solder paste.

(3) The rear wall 11 is provided with the groove 116, the first terminal 2 is provided with the protrusion 212 opposite to the groove 116, and the groove 116 is used for stopping the protrusion 212 forward, so as to prevent the first terminal 2 from moving backward.

(4) The second guiding surface 461 is closer to the rear wall 11 than the first guiding surface 43, and the first guiding surface 43 is an arc surface, when the electrical connector a is mated with the mating connector B, the first guiding surface 43 is firstly mated with the first terminal 2, so that the first terminal 2 enters the second terminal groove 46, and then the first guiding surface 43 is mated with the front guiding surface 132311 of the locking protrusion 13231, so that the electrical connector a is mated with the mating connector B. This prevents the mating connector B from being inserted into the mating space 12 obliquely, thereby stably mating the electrical connector a with the mating connector B.

(5) The upper inner wall surface 462 is provided with the first stepped portion 4621, the lower inner wall surface 463 is provided with the second stepped portion 4631 opposite to the first stepped portion 4621, and the first stepped portion 4621 and the second stepped portion 4631 are used for stopping the wire fixing portion 53 and preventing the second terminal 5 from excessively moving backwards.

(6) The first step 4621 is provided with the abdicating groove 46211 corresponding to the convex hull 511, the abdicating groove 46211 is used for abdicating the convex hull 511, so as to prevent the protrusion 1311 from pushing the second insulating body 4 upwards when the second terminal 5 is inserted into the second terminal groove 46, thereby causing the second insulating body 4 to be damaged.

(7) The positioning parts 1314 are formed by extending from each outer base 131 to a side close to the docking space 12, and the docking connector B is limited between the two positioning parts 1314 along the horizontal direction, so that when the docking connector B is inserted into the docking space 12, the docking connector B is prevented from being inclined, and the docking connector B and the connector cannot be well docked.

(8) The width of the extension 1322 is smaller than the width of the locking portion 1323 in the vertical direction, or/and the width of the extension 1322 is smaller than the width of the locking portion 1323 in the horizontal direction, so that the locking portion 1323 cannot perform a good retaining function due to the damage of the locking protrusion 13231 caused by the pulling-inserting force when the mating connector B and the electrical connector a are pulled out and inserted for multiple times. The width of the extension 1322 is smaller than that of the locking portion 1323, so that the extension 1322 can distribute part of the plugging force applied to the locking portion 1323, thereby largely avoiding the locking protrusion 13231 from being damaged, and ensuring that the electrical connector a and the mating connector B can be stably mated after being plugged for multiple times.

The above detailed description is only for the purpose of illustrating the preferred embodiments of the present invention, and not for the purpose of limiting the scope of the present invention, therefore, all the equivalent technical changes using the description and drawings of the present invention are included in the scope of the present invention.

Claims (15)

1. An electrical connector, comprising:

a plurality of first terminals;

a first insulator, it is equipped with a back wall and is located two lateral walls of the relative both sides of back wall, the back wall with two the lateral wall encloses to establish and forms a butt joint space, and is a plurality of first terminal accept in the back wall just expose in the butt joint space, the lateral wall has an integrative outer basal portion and is close to a flexible arm of butt joint space one side, the flexible arm has a hasp portion, an extension and a connecting portion, hasp portion is located the extension with between the connecting portion, the extension with a first clearance has between the outer basal portion, connecting portion with a second clearance has between the outer basal portion, the width in second clearance is greater than the width in first clearance.

2. The electrical connector of claim 1, comprising: the elastic arm is provided with a bending part, the bending part is connected with the extending part, a third gap is arranged between the bending part and the rear wall, and the third gap is communicated with the first gap.

3. The electrical connector of claim 2, comprising: the elastic arm, the rear wall and the outer base are integrally formed, one end of the bending part, which is far away from the extending part, is connected with the rear wall, and one end of the connecting part, which is far away from the locking part, is connected with the outer base.

4. The electrical connector of claim 1, comprising: one end of the connecting part, which is far away from the lock catch part, is connected with the outer base part, a fourth gap is formed between one end of the extending part, which is close to the rear wall, and the fourth gap is communicated with the first gap and the butt joint space.

5. The electrical connector of claim 1, comprising: the second gap is further recessed from one side of the outer base portion close to the connecting portion, the width of the connecting portion is equal to that of the extending portion, and the width of the outer base portion close to the connecting portion is smaller than that of the outer base portion close to the extending portion.

6. The electrical connector of claim 1, comprising: the first insulating body is provided with a first bottom surface and a bump, and the bump extends downwards beyond the first bottom surface.

7. The electrical connector of claim 6, comprising: the first insulating body is provided with two second bottom surfaces, the second bottom surfaces are arranged on the outer base parts, the second bottom surfaces are higher than the first bottom surfaces, and a pair of fixing parts are respectively arranged on the two outer base parts and are exposed on the second bottom surfaces.

8. The electrical connector of claim 1, comprising: a fifth gap is formed between the locking part and the outer base part, the fifth gap is communicated with the first gap and the second gap, and the first gap and the fifth gap are the same.

9. The electrical connector of claim 1, comprising: the rear wall is provided with a plurality of first terminal grooves, one side of each first terminal groove is provided with a groove, the grooves are communicated with the first terminal grooves, the first terminals are provided with a convex thorn relative to the grooves, and the grooves block the convex thorn forwards.

10. The electrical connector of claim 1, comprising: the butting connector butted with the butting connector is provided with a second insulating body, the second insulating body is provided with a plurality of second terminal grooves, a plurality of second terminals are arranged in the second terminal grooves, one side, close to the elastic arm, of the second insulating body is provided with a first guide surface, the second terminal grooves are provided with second guide surfaces corresponding to the first terminals, and the second guide surfaces are close to the rear wall relative to the first guide surfaces.

11. The electrical connector of claim 10, comprising: the first guide surface is an arc surface and is formed by the concave arrangement of the side edge of the insulating body towards the direction far away from the locking part.

12. The electrical connector of claim 10, comprising: the second terminal slot is provided with an upper inner wall surface and a lower inner wall surface which are oppositely arranged, the upper inner wall surface is provided with a first step part, and the lower inner wall surface is provided with a second step part relative to the first step part.

13. The electrical connector of claim 12, comprising: the second terminal is provided with a convex hull, and the first step part is provided with an abdicating groove relative to the convex hull for abdicating the convex hull.

14. The electrical connector of claim 1, comprising: a positioning portion is formed by extending from each outer base portion to one side close to the butt joint space, and the butt joint connector is limited between the two positioning portions along the horizontal direction.

15. The electrical connector of claim 1, comprising: the width of the extended portion in the vertical direction is smaller than the width of the locking portion, or/and the width of the extended portion in the horizontal direction is smaller than the width of the locking portion.

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