CN217306798U - Electrical connector - Google Patents

Abstract

The utility model discloses an electric connector, set up the butt joint space from the front end of insulating body to the back concave, from the rear end of insulating body to the concave accommodating space forward, insulating body is equipped with the partition wall and is located between accommodating space and the butt joint space, the partition wall is gone up and is run through along the fore-and-aft direction and be equipped with a plurality of first terminal holes, the outer wall of insulating body near the rear end corresponds accommodating space and runs through and is equipped with the card hole, first terminal is including inserting the fixed part of establishing and being fixed in first terminal hole, a first positioning part that extends backward from the fixed part, and the weld part that is located first positioning part rear; the back stopper assembles to accommodating space forward from the back, and the main part of back stopper runs through along the fore-and-aft direction and is equipped with a plurality of first spliced eye that hold a plurality of first locating parts, and the protruding bullet arm of extending forward and backward of establishing from the surface of main part, plays the protruding buckle part of establishing of arm back end orientation insulator, when the whole equipment of back stopper is to accommodating space, the buckle part card is held in the card hole, makes the back stopper be convenient for the equipment dismantle, improves electric connector's life.

Description

Electrical connector

[ technical field ] A method for producing a semiconductor device

The utility model relates to an electric connector especially relates to an electric connector for automobile-used.

[ background of the invention ]

An electrical connector generally includes a housing, and a plurality of terminals inserted into the housing. The terminal is L-shaped and comprises a horizontal part and a vertical part bent and extended from the horizontal part, and the tail end of the vertical part is used for being inserted into a welding hole of the circuit board. Because the number of the terminals is large, the number of the terminals usually reaches dozens or even hundreds, the length of the horizontal part is relatively long and limited by the injection molding process, the length of the terminal groove of the molded insulating body is relatively short, the part of the horizontal part fixed to the terminal groove is short, most of the horizontal part is exposed outside the terminal groove, and therefore the terminals swing up and down and left and right, and the coplanarity of a plurality of welding parts and the accuracy of the welding parts inserted into the welding holes are affected. In order to solve the problem, a rear plug is usually added at the rear end of the insulating body, a protruding block is convexly arranged on the side wall of the rear plug, a clamping block is correspondingly arranged on the side wall of the insulating body, when the rear plug is assembled to the insulating body, the protruding block needs to go over the clamping block, and the clamping block blocks the protruding block so that the rear plug cannot exit the insulating body.

And at the in-process of equipment, the lug can interfere each other with the fixture block, the extrusion friction, and then produce wearing and tearing, not only make back stopper and insulator can not the firm cooperation, simultaneously, when needs change the terminal, also can't dismantle the back stopper from insulator smoothly, even pull down by force, also can make the back stopper receive irreversible damage, also can cause the damage to other terminals at the in-process of dismantling, reduced electric connector's life.

Therefore, there is a need for a new electrical connector to overcome the above problems.

[ Utility model ] content

An object of the utility model is to provide an it cooperates with the buckle part on the bullet arm of back stopper to set up card hole on insulator for the electric connector of hasp and convenient dismantlement can be stabilized with insulator to back stopper.

In order to achieve the above purpose, the utility model adopts the following technical scheme: an electric connector comprises an insulating body, wherein at least one butt joint space is concavely arranged backwards from the front end of the insulating body and is used for butt joint with a butt joint piece, at least one accommodating space is concavely arranged forwards from the rear end of the insulating body, the insulating body is provided with a partition wall positioned between the accommodating space and the butt joint space, a plurality of first terminal holes are arranged on the partition wall in a penetrating manner along the front-back direction, and at least one clamping hole is arranged on the outer wall surface, close to the rear end, of the insulating body in a penetrating manner corresponding to the accommodating space; each first terminal comprises a fixing part which is inserted and fixed in the first terminal hole, a contact part which extends forwards from the fixing part and is positioned in the butt joint space, a first positioning part which extends backwards from the fixing part and is positioned in the accommodating space, and a welding part which is positioned behind the first positioning part; the rear plug is assembled to the accommodating space from back to front and comprises a main body portion, a plurality of first inserting holes for accommodating the first positioning portions are arranged in the main body portion in a penetrating mode along the front-back direction, at least one elastic arm extending from front to back is arranged on the outer surface of the main body portion in a protruding mode, at least one clamping portion is arranged on the rear portion of the elastic arm in a protruding mode towards the insulating body, and when the rear plug is completely assembled to the accommodating space, the clamping portion is clamped in the clamping holes.

Further, the locking hole is provided with a blocking surface, the locking part comprises a guide surface which is positioned at the front end and extends in a backward inclining way and a blocking matching surface which is positioned at the rear end, and the blocking surface is blocked behind the blocking matching surface.

Furthermore, the front end of the elastic arm is integrally connected with the upper surface of the main body part, the rear end of the elastic arm is a free end and is arranged at intervals with the main body part along the vertical direction, the rear end of the elastic arm is located in the accommodating space, and the buckling part is located in the accommodating space and is clamped with the buckling hole.

Further, the bullet arm is certainly the upper surface of main part is protruding to be established, certainly the upper surface of main part is protruding to be established a protection rib and is located one side of bullet arm, along upper and lower direction, the upper surface of protection rib is higher than the upper surface of bullet arm.

Further, two first stop blocks are arranged at intervals in a protruding mode from the upper wall face of the insulating body towards the accommodating space, two second stop blocks are arranged at intervals in a protruding mode from the rear end face of the partition wall towards the accommodating space, the two second stop blocks are located on the outer sides of the two first terminal holes on the outermost side respectively, first convex blocks are arranged at two sides of the upper surface of the main body portion in a protruding mode respectively, a second convex block is arranged at the outer side face of each first convex block in a protruding mode, the first convex blocks and the second convex blocks are in an L shape, the first stop blocks are stopped above the first convex blocks, and the second stop blocks are stopped in front of the second convex blocks.

Furthermore, two third stop blocks are arranged at intervals in a protruding mode from the rear end face of the partition wall towards the accommodating space, two third convex blocks are arranged at intervals in a protruding mode from the lower surface of the main body portion, each third convex block comprises a front stop face and a lower stop face, the rear end face of each third stop block is stopped in front of the front stop face, and the lower stop face is attached to the inner wall face of the accommodating space.

Further, a guide rib is convexly arranged from the top wall of the insulating body towards the accommodating space, the guide rib extends backwards from the partition wall to the rear end face of the insulating body, two convex strips extending in the front-back direction are convexly arranged from the upper surface of the main body part, a guide groove matched with the guide rib is arranged between the two convex strips, and the guide groove extends backwards from the front end face of the main body part to the rear end face of the main body part.

Furthermore, the first terminal includes certainly a second location portion that first location portion buckles the extension downwards, and is a plurality of second location portion arranges into the multirow along the fore-and-aft direction, the below of second location portion is equipped with the welding part, first location portion perpendicular to second location portion with the welding part, a locating part, from the bottom up equipment extremely insulator, the locating part is located outside the accommodating space and be located the below of back stopper, the locating part runs through along the upper and lower direction and is equipped with and accepts a plurality of second spliced eye of second location portion, the second spliced eye arranges into the multirow along the fore-and-aft direction, certainly the antetheca of locating part is to the back concave a plurality of breachs of establishing, and is a plurality of the breach correspondence with lean on one row before the second spliced eye is linked together.

Furthermore, the butt joint space with accommodating space all is equipped with two, two the butt joint space is used for with two butt joint spare docks, two the butt joint space all is equipped with a plurality ofly first terminal, one of them the butt joint space still is equipped with a plurality of second terminals, another the butt joint space still is equipped with a plurality of third terminals, be equipped with on the setting element and be used for fixing a position a plurality of third spliced eye of second terminal and be used for fixing a position a plurality of fourth spliced eye of third terminal.

Further, the widths of the second terminal and the third terminal are both greater than the width of the first terminal, the number of the second terminal and the third terminal is less than the number of the first terminal, and the plurality of the second terminal and the plurality of the third terminal are respectively located on the left side and the right side of the plurality of the first terminals.

Compared with the prior art, the outer wall surface of the insulating body close to the rear end is provided with the clamping hole in a penetrating way corresponding to the accommodating space, the rear plug comprises the main body part, the elastic arm extending from the front to the rear is convexly arranged on the outer surface of the main body part, the buckling part is convexly arranged from the rear section of the elastic arm towards the insulating body, so that the elastic arm can elastically deform in the process of assembling the rear plug into the accommodating space, the elastic arm can not generate hard interference with the insulating body, the abrasion is not easy to generate, when the rear plug is completely assembled into the accommodating space, the elastic arm recovers the elastic deformation, the buckling part is clamped in the clamping hole, the rear plug is stably matched with the insulating body, the clamping hole penetrates through the outer wall surface of the insulating body, when the first terminal needs to be replaced, an operator can enter the clamping hole through a tool and press the elastic arm downwards, therefore, the rear plug can be smoothly and completely detached from the insulating body, the integrity of the first terminal can be ensured, and the service life of the electric connector is prolonged.

[ description of the drawings ]

Fig. 1 is an exploded perspective view of the electrical connector of the present invention;

fig. 2 is an unassembled schematic view of the insulating body, the first terminal and the rear plug of the electrical connector according to the present invention;

FIG. 3 is a schematic view of FIG. 2 assembled;

FIG. 4 is a schematic view of the electric connector of the present invention without assembling the positioning member;

FIG. 5 is a schematic view of FIG. 4 assembled;

fig. 6 is a perspective assembly view of the electric connector of the present invention;

FIG. 7 is a cross-sectional view of FIG. 6;

fig. 8 is a partial schematic view of the insulating body of the electrical connector of the present invention;

fig. 9 is a perspective view of the rear plug of the electrical connector of the present invention;

fig. 10 is a front view of fig. 9.

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

[ detailed description ] embodiments

For better understanding of the objects, structures, features, and functions of the present invention, reference should now be made to the drawings and detailed description of the invention.

Referring to fig. 1, an electrical connector 100 of the present invention is an automotive connector for electrically connecting a mating member (not shown) and a circuit board (not shown). The electrical connector 100 includes an insulative housing 1, a plurality of first terminals 2, a plurality of second terminals 3, and a plurality of third terminals 4 disposed in the insulative housing 1, a rear plug 5 mounted on the insulative housing 1, and a positioning member 6. For the sake of clarity, the X direction is defined as the front-back direction, the Y direction as the left-right direction, and the Z direction as the up-down direction.

Referring to fig. 1 and 7, two docking spaces 11 are recessed from the front end of the insulating body 1 to the rear, the two docking spaces 11 are arranged side by side in the left-right direction, each docking space 11 is used for docking with different types of docking pieces, two receiving spaces 12 are recessed from the rear end of the insulating body 1 to the front, the two receiving spaces 12 are arranged side by side in the left-right direction, and the two receiving spaces 12 are used for receiving one rear plug 5 respectively. Each of the receiving spaces 12 is aligned with one of the docking spaces 11 in the front-rear direction, a partition wall 13 is provided between the docking spaces 11 and the receiving spaces 12, the partition wall 13 is provided with a plurality of first terminal holes 131, a plurality of second terminal holes 132, and a plurality of third terminal holes 133 penetrating in the front-rear direction, the plurality of second terminal holes 132 and a part of the first terminal holes 131 are provided in the partition wall 13 between one of the docking spaces 11 and one of the receiving spaces 12, the plurality of second terminal holes 132 and the plurality of first terminal holes 131 are arranged in parallel in the left-right direction, the plurality of third terminal holes 133 and the other first terminal holes 131 are provided in the partition wall 13 between the other one of the docking spaces 11 and the other one of the receiving spaces 12, and the plurality of third terminal holes 133 and the plurality of first terminal holes 131 are arranged in parallel in the left-right direction, the second terminal hole 132 and the third terminal hole 133 are respectively located at both sides of the first terminal hole 131 as viewed in the left-right direction. In addition to the above differences, the structures of the insulating bodies 1 in which one of the receiving spaces 12 and the other receiving space 12 are located are substantially the same, and the structures of the insulating bodies 1 in which one of the butting spaces 11 and the other butting space 11 are located are substantially the same, so hereinafter, only the structures of the insulating bodies 1 in which one of the butting spaces 11 and the corresponding receiving space 12 are located will be described.

Referring to fig. 1 and 2, two fastening holes 14 are formed through the upper outer wall surface of the insulating body 1 near the rear end corresponding to the accommodating space 12 for fastening with the rear plug 5, the two fastening holes 14 are arranged at intervals in the left-right direction, each fastening hole 14 is rectangular, and a stop surface 141 is arranged at the rear end of each fastening hole 14. In this embodiment, the locking hole 14 is disposed on the upper outer wall surface of the insulation body 1, and in other embodiments, the locking hole 14 may be disposed on another wall surface at the rear end of the insulation body 1 as long as it can be smoothly locked with the rear plug 5.

Referring to fig. 3, 7 and 8, two first stoppers 15A protruding from the upper wall of the insulating housing 1 toward the accommodating space 12 are stopped above the rear plug 5, the first stop 15A extends from the rear end surface of the partition wall 13 to the rear end surface of the insulator 1, two second stops 15B are protruded from the rear end surface of the partition wall 13 toward the accommodating space 12 for stopping at the front of the rear plug 5, the second stopper 15B is rectangular, the rear end surface of the second stopper 15B is located in the accommodating space 12, the two second stoppers 15B are respectively located at the outer sides of the two outermost first terminal holes 131, the second stopper 15B is located above the first terminal holes 131, in other embodiments, the second stopper 15B may be located at other positions as long as it is located outside the two outermost first terminal holes 131. The two first stoppers 15A are located inside the two second stoppers 15B, and one second stopper 15B abuts on one first stopper 15A.

Referring to fig. 3, 7 and 8, two third stoppers 15C are protruded from the rear end surface of the partition wall 13 toward the accommodating space 12 at intervals and are stopped at the front of the rear plug 5, the third stoppers 15C are rectangular, the rear end surface of the third stopper 15C is located in the accommodating space 12, and the two third stoppers 15C are respectively located below the two outermost first terminal holes 131, so that the third stoppers 15C can stop the rear plug 5 at two positions below. From insulator 1's lower wall face is faced the protruding brace table 17 of establishing of accommodation space 12 is used for supporting back stopper 5, brace table 17 certainly the rear end face of interval wall 13 extends to backward insulator 1's rear end face, brace table 17 is located two between the third dog 15C.

Referring to fig. 8, a guiding rib 16 is protruded from the top wall of the insulating housing 1 toward the receiving space 12, the guiding rib 16 extends from the rear end surface of the partition wall 13 to the rear end surface of the insulating housing 1, and the guiding rib 16 is located between the two first stoppers 15A.

Referring to fig. 1, a slot 18 is recessed from the inner sides of two side walls of the insulating body 1 located at one side of the accommodating space 12 for being fastened with the positioning element 6, and the slot 18 is communicated with the accommodating space 12. A stop hook 19 is formed by bending and extending downward from the outer side of each of the two side walls of the insulating body 1, and the stop hook 19 is used for fixing the electrical connector 100 to the circuit board.

Referring to fig. 2, 4 and 5, the first terminal 2 is L-shaped and is a signal terminal. Each of the first terminals 2 includes a fixing portion 21 inserted and fixed in the first terminal hole 131, a contact portion 22 extending forward from the fixing portion 21 and located in the docking space 11, a first positioning portion 23 extending backward from the fixing portion 21 and located in the accommodating space 12, a second positioning portion 24 bent downward from the first positioning portion 23, and a soldering portion 25 located below the second positioning portion 24 and inserted into a soldering hole (not shown) of the circuit board, the second positioning portion 24 and the soldering portion 25 are both located below the first positioning portion 23, the plurality of second positioning portions 24 are arranged in a plurality of rows in the front-back direction, and the first positioning portion 23, the second positioning portion 24 and the soldering portion 25 are perpendicular to each other.

Referring to fig. 1 and 6, the second terminal 3 and the third terminal 4 are L-shaped and are power supply terminals. The second terminals 3 are fixed to the second terminal holes 132 in an inserting manner, and the second terminals 3 extend forward into the mating space 11 and extend backward out of the accommodating space 12 to be soldered to the circuit board. The plurality of third terminals 4 are fixedly inserted into the plurality of third terminal holes 133 one by one, and the third terminals 4 extend forward into the docking space 11 and extend backward out of the accommodating space 12 to be soldered to the circuit board. The widths of the second terminal 3 and the third terminal 4 are larger than the width of the first terminal 2, and the number of the second terminal 3 and the third terminal 4 is smaller than the number of the first terminal 2.

Referring to fig. 2, 3 and 9, the two rear plugs 5 are used for positioning the first terminals 2, and each rear plug 5 is assembled to the corresponding receiving space 12 from the rear to the front, and since the two rear plugs 5 have the same structure, one of them will be described in detail below. The rear plug 5 includes a main body 51, the main body 51 is provided with a plurality of first insertion holes 511 for accommodating the first positioning portions 23 in a front-rear direction, a plurality of material taking grooves 512 are provided between two adjacent first insertion holes 511 in a left-right direction, and the length direction of the material taking grooves 512 is in an up-down direction. Two elastic arms 52 are convexly arranged at intervals from the outer surface of the main body part 51, the front end of each elastic arm 52 is integrally connected with the upper surface of the main body part 51, the rear end of each elastic arm 52 is a free end and is arranged at intervals along the vertical direction with the main body part 51, a buckling part 53 is convexly arranged upwards from the rear section of each elastic arm 52, the buckling part 53 comprises a guide surface 531 which is positioned at the front end and extends backwards and a stop matching surface 532 which is positioned at the rear end, when the rear plug 5 is assembled in the accommodating space 12 forwards, the elastic arms 52 cannot collide with the insulating body 1, only when the rear plug 5 advances to the buckling part 53 and enters the accommodating space 12, the guide surface 531 contacts the inner wall surface of the insulating body 1 firstly, so that the buckling part 53 is pressed downwards, and when the rear plug 5 is completely assembled in the accommodating space 12, the fastening portion 53 is located in the accommodating space 12 and fastened to the fastening hole 14, the rear end of the elastic arm 52 recovers elastic deformation, and the stopping surface 141 is stopped behind the stopping matching surface 532, so that the rear plug 5 cannot be withdrawn from the insulating body 1. The rear end of the elastic arm 52 is located in the accommodating space 12, so that the elastic arm 52 is not exposed out of the insulating body 1, and the buckling part 53 and the card hole 14 are effectively prevented from being tripped due to mistaken pressing of the elastic arm 52, so that the rear plug 5 and the insulating body 1 are assembled more stably, and the safety performance of the electrical connector 100 is ensured.

Referring to fig. 10, two protection ribs 54 are protrudingly provided from the upper surface of the main body 51, each protection rib 54 is correspondingly located on one side of one of the elastic arms 52, and along the up-down direction, the upper surface of the protection rib 54 is higher than the upper surface of the elastic arm 52, when the rear plug 5 is assembled to the insulating body 1, the insulating body 1 will collide with the protection rib 54 located above the elastic arm 52 first, so that the elastic arm 52 can be protected from the collision of the insulating body 1, the elastic arm 52 keeps good elastic deformation, and the fastening portion 53 and the fastening hole 14 can be effectively fastened.

Referring to fig. 3, 7, 8 and 9, a first bump 55 is respectively protruded from two sides of the upper surface of the main body 51, a second bump 56 is protruded from an outer side surface of each first bump 55, the first bump 55 and the second bump 56 are integrally connected in an L shape, the upper surfaces of the first bump 55 and the second bump 56 are flush, in this embodiment, the second bump 56 is protruded from the outer side surface of the first bump 55, in other embodiments, the second bump 56 may also be protruded from the side wall of the main body 51 according to the position of the second stopper 15B. Two third protrusions 57 are protruded from the lower surface of the main body 51 at intervals, and each of the third protrusions 57 includes a front stopping surface 571 and a lower stopping surface 572. Two convex strips 58 extending in the front-rear direction are convexly arranged on the upper surface of the main body part 51, a guide groove 59 matched with the guide rib 16 is arranged between the two convex strips 58, and the guide groove 59 extends backwards from the front end surface of the main body part 51 to the rear end surface of the main body part 51. When the rear plug 5 is assembled into the accommodating space 12 from the rear to the front, the guide groove 59 and the guide rib 16 cooperate to guide the rear plug 5 to move forward into the accommodating space 12, the second stopper 15B is stopped in front of the second protrusion 56, the first stopper 15A is stopped above the first protrusion 55, the rear end face of the third stopper 15C is stopped in front of the front stopper face 571, the lower stopper face 572 is attached to the inner wall face of the accommodating space 12, the guide groove 59 cooperates with the guide rib 16 to position the rear plug 5 in the left-right direction, so that six directions, namely, the upper direction, the lower direction, the front direction, the rear direction, the left direction and the right direction of the rear plug 5 are limited, the positions of four corners of the rear plug 5 are all stopped, and the rear plug 5 can be more stably arranged in the insulating body 1.

Please refer to fig. 1, 4 and 6. The positioning element 6 is assembled to the insulating body 1 from bottom to top, and the positioning element 6 is located outside the accommodating space 12 and below the rear plug 5. The positioning member 6 is provided with a plurality of second insertion holes 61 for receiving the plurality of second positioning portions 24, a plurality of third insertion holes 62 for receiving the plurality of second terminals 3, and a plurality of fourth insertion holes 63 for receiving the plurality of third terminals 4, which penetrate in the vertical direction. The second inserting holes 61 are arranged in a plurality of rows along the front-back direction, a plurality of notches 64 are concavely formed from the front wall of the positioning member 6 to the back, and the plurality of notches 64 are correspondingly communicated with the row of the second inserting holes 61 which is positioned at the front most. Two sides of the positioning element 6 are respectively provided with a hook 65 extending upward and locked with the slot 18, and two sides of the positioning element 6 are respectively provided with a positioning post 66 extending downward and positioned to the circuit board.

Referring to fig. 1 to 5, to further illustrate the assembling sequence of the first terminal 2, the rear plug 5 and the positioning member 6, an upper clamping block (not shown) and a lower clamping block (not shown) are used to sequentially insert an un-bent row of the first terminals 2 from back to front into the first terminal hole 131, the fixing portion 21 is fixed in the first terminal hole 131, the upper clamping block moves upward, the lower clamping block moves downward to release a row of the first terminals 2, the upper clamping block and the lower clamping block are pulled out backward, a plurality of rows of the first terminals 2 are sequentially inserted into the insulating body 1, the rear plug 5 is assembled from back to front into the accommodating space 12, the first terminals 2 are inserted into the rear plug 5 from front, and after the rear plug 5 is assembled, the fastening portions 53 enter the fastening holes 14 and are located on the top wall of the insulating body 1, the stopping surface 141 stops behind the stopped surface 141, so that the back plug 5 cannot be withdrawn backward from the receiving space 12. Further, bend 90 degrees downwards the first terminal 2, assemble the setting element 6 to the insulator 1 again, the trip 65 with the draw-in groove 18 cooperation prevents the setting element 6 breaks away from downwards the insulator 1, the welding part 25 passes the second locating hole extends to the below of setting element 6, the second location portion 24 accept in the second locating hole, the second terminal 3 passes downwards the setting element 6 and part accept in the third accommodating hole, the third terminal 4 passes downwards the setting element 6 and part accept in the fourth accommodating hole, so far, the electric connector 100 is assembled and is accomplished.

With reference to fig. 4, how to detach the rear plug 5 from the insulating body 1 will be explained. An operating tool (not shown) is inserted into the fastening hole 14 from the outer wall surface of the insulating body 1, the operating tool presses the fastening portion 53 downward, so that the rear end of the elastic arm 52 moves downward, when the fastening portion 53 and the fastening hole 14 are completely disengaged in the front-rear direction, the rear plug 5 is pulled out backward, and the rear plug 5 is disengaged from the insulating body 1.

In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "width", "vertical", "relative", "vertical", "inclined", and the like indicate directions or positional relationships based on directions or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or assembly referred to must be constructed and operated in a specific orientation with an established orientation, and therefore, should not be construed as limiting the present invention.

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

1. the outer wall surface of the insulating body 1 near the rear end is provided with the card hole 14 corresponding to the accommodating space 12 in a penetrating manner, the rear plug 5 comprises the main body 51, the elastic arm 52 extending from the front to the rear is convexly arranged on the outer surface of the main body 51, the buckling part 53 is convexly arranged from the rear section of the elastic arm 52 towards the insulating body 1, so that the elastic arm 52 can elastically deform in the process of assembling the rear plug 5 into the accommodating space 12, hard interference with the insulating body 1 is avoided, abrasion is not easily caused, when the rear plug 5 is completely assembled into the accommodating space 12, the elastic arm 52 recovers elastic deformation, the buckling part 53 is clamped in the card hole 14, so that the rear plug 5 is stably matched with the insulating body 1, the card hole 14 penetrates through the outer wall surface of the insulating body 1, and when the first terminal 2 needs to be replaced, an operator can enter the card hole 14 by a tool and press the elastic arm 52 downwards, so that the rear plug 5 can be smoothly and completely detached from the insulating body 1, and the integrity of the first terminal 2 can be ensured, thereby prolonging the service life of the electrical connector 100.

2. The blocking surface 141 is disposed in the card hole 14, the fastening portion 53 includes the blocking matching surface 532 located at the rear end, the blocking surface 141 is blocked behind the blocking matching surface 532, so that the back plug 5 and the insulating body 1 can be stably fastened, the fastening portion 53 includes the guide surface 531 located at the front end and extending backward, the guide surface 531 contacts the inner wall surface of the insulating body 1 first, and then the fastening portion 53 is pressed downward, so that the downward pressure applied to the elastic arm 52 is gradually increased, and thus the elastic arm 52 can be better protected, and the assembling process can be smoother.

3. The front end of bullet arm 52 with the upper surface of main part 51 is integrative links to each other, the rear end of bullet arm 52 for the free end and with main part 51 sets up along upper and lower direction interval, makes bullet arm 52 has great elasticity, the rear end of bullet arm 52 is located in accommodating space 12, effectively avoid the maloperation to press bullet arm 52 and cause clamping part 53 with card hole 14 is tripped, makes back stopper 5 with insulator 1 assembles more firmly, has guaranteed electric connector 100's security performance.

4. The protection rib 54 is convexly arranged on the upper surface of the main body 51 and located on one side of the elastic arm 52, and along the vertical direction, the upper surface of the protection rib 54 is higher than the upper surface of the elastic arm 52, when the rear plug 5 is assembled to the insulating body 1, the insulating body 1 collides with the protection rib 54 located above the elastic arm 52 first, so that the elastic arm 52 can be protected from being collided by the insulating body 1, the elastic arm 52 keeps good elastic deformation, and the buckling part 53 and the clamping hole 14 can be effectively buckled.

5. Two second stoppers 15B are protruded from the rear end surface of the partition wall 13 toward the accommodating space 12, the two second stoppers 15B are respectively located outside the two outermost first terminal holes 131, two first stoppers 15A are protruded from the upper wall surface of the insulating body 1 toward the accommodating space 12 at intervals, the first protrusions 55 are protruded from both sides of the upper surface of the main body 51, the second protrusion 56 is protruded from the outer side surface of each first protrusion 55, the first protrusion 55 and the second protrusion 56 are connected together and are L-shaped, the second stopper 15B is stopped at the front of the second protrusion 56, the first block 15A is stopped above the first bump 55, and the second block 15B and the first block 15A limit the rear plug 5 at two positions above and in front.

6. The two third stoppers 15C are protruded from the rear end surface of the partition wall 13 toward the accommodating space 12 at intervals, the two third protrusions 57 are protruded from the lower surface of the main body 51 at intervals, each third protrusion 57 includes the front blocking surface 571 and the lower blocking surface 572, the rear end surface of each third stopper 15C is blocked in front of the front blocking surface 571, so that the rear plug 5 is limited from moving forward, the lower blocking surface 572 is attached to the inner wall surface of the accommodating space 12, so that the rear plug 5 is limited from moving downward, and further, the rear plug 5 can be stably arranged in the accommodating space 12.

7. The guide rib 16 is protruded from the top wall of the insulating body 1 toward the interior of the accommodating space 12, the guide rib 16 extends from the partition wall 13 to the rear end face of the insulating body 1, two protruding strips 58 extending in the front-rear direction are protruded from the upper surface of the main body 51, the guide groove 59 matched with the guide rib 16 is arranged between the two protruding strips 58, and the guide groove 59 extends from the front end face of the main body 51 to the rear end face of the main body 51 so as to guide the rear plug 5 when the rear plug 5 enters the accommodating space 12, thereby preventing the rear plug 5 from being inserted by mistake.

8. The first terminal 2 includes from the first location portion 23 is buckled downwards and is extended second location portion 24, setting element 6 from bottom to top assemble extremely insulator 1, setting element 6 is located accommodating space 12 is outer and is located the below of back stopper 5, setting element 6 runs through along upper and lower direction and is equipped with the location a plurality of second spliced eyes 61 of second location portion 24, has further guaranteed the coplanarity of weld portion 25 and the accuracy that 25 inserted the weld hole, from the antetheca of setting element 6 is to the back concave multiple breach 64, and is a plurality of breach 64 corresponds and is located the first row second spliced eye 61 is linked together, can be for being located the undermost row and length is the shortest in the direction of height the department of bending of first terminal 2 provides the position of stepping down, lets first terminal 2 with when setting element 6 assembles, make things convenient for more, And (4) smoothing.

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 (10)

1. An electrical connector, comprising:

the insulation body is provided with a partition wall positioned between the accommodating space and the butt joint space, a plurality of first terminal holes are arranged on the partition wall in a penetrating manner along the front-back direction, and at least one clamping hole is arranged on the outer wall surface of the insulation body close to the rear end in a penetrating manner corresponding to the accommodating space;

each first terminal comprises a fixing part inserted and fixed in the first terminal hole, a contact part extending forwards from the fixing part and positioned in the butt joint space, a first positioning part extending backwards from the fixing part and positioned in the accommodating space, and a welding part positioned behind the first positioning part;

the rear plug is assembled to the accommodating space from back to front and comprises a main body portion, a plurality of first inserting holes for accommodating the first positioning portions are arranged in the main body portion in a penetrating mode along the front-back direction, at least one elastic arm extending from front to back is arranged on the outer surface of the main body portion in a protruding mode, at least one clamping portion is arranged on the rear portion of the elastic arm in a protruding mode towards the insulating body, and when the rear plug is completely assembled to the accommodating space, the clamping portion is clamped in the clamping holes.

2. The electrical connector of claim 1, wherein: the clamping hole is provided with a blocking surface, the clamping part comprises a guide surface which is positioned at the front end and extends backwards, and a blocking matching surface which is positioned at the rear end, and the blocking surface is blocked behind the blocking matching surface.

3. The electrical connector of claim 1, wherein: the front end of the elastic arm is integrally connected with the upper surface of the main body part, the rear end of the elastic arm is a free end and is arranged at intervals with the main body part along the vertical direction, the rear end of the elastic arm is located in the accommodating space, and the buckling part is located in the accommodating space and is clamped with the buckling hole.

4. The electrical connector of claim 1, wherein: the elastic arm is arranged on the upper surface of the main body in a protruding mode, a protection rib is arranged on one side of the elastic arm in a protruding mode on the upper surface of the main body, and the upper surface of the protection rib is higher than the upper surface of the elastic arm along the vertical direction.

5. The electrical connector of claim 1, wherein: the insulation body is provided with two first stop blocks which are arranged at intervals in a protruding mode from the upper wall surface of the insulation body towards the accommodating space, two second stop blocks are arranged in a protruding mode from the rear end surface of the partition wall towards the accommodating space, the two second stop blocks are located on the outer sides of the two first terminal holes on the outermost side respectively, a first convex block is arranged on each of the two sides of the upper surface of the main body in a protruding mode, a second convex block is arranged on the outer side surface of each first convex block in a protruding mode, the first convex blocks and the second convex blocks are in an L shape, the first stop blocks are stopped above the first convex blocks, and the second stop blocks are stopped in front of the second convex blocks.

6. The electrical connector of claim 5, wherein: two third baffle blocks are arranged at intervals in a protruding mode from the rear end face of the partition wall towards the containing space, two third baffle blocks are arranged at intervals in a protruding mode from the lower surface of the main body portion, each third baffle block comprises a front baffle surface and a lower baffle surface, the rear end face of each third baffle block is stopped in front of the front baffle surface, and the lower baffle surface is attached to the inner wall face of the containing space.

7. The electrical connector of claim 1, wherein: a guide rib is convexly arranged from the top wall of the insulating body towards the accommodating space, the guide rib extends backwards from the partition wall to the rear end face of the insulating body, two convex strips extending in the front-back direction are convexly arranged from the upper surface of the main body part, a guide groove matched with the guide rib is arranged between the two convex strips, and the guide groove extends backwards from the front end face of the main body part to the rear end face of the main body part.

8. The electrical connector of claim 1, wherein: first terminal includes certainly a second location portion that first location portion buckling down extends, and is a plurality of second location portion arranges into the multirow along the fore-and-aft direction, the below of second location portion is equipped with the welding part, first location portion perpendicular to second location portion with the welding part, a locating part, from upwards equipment extremely from bottom to top insulator, the setting element is located accommodating space is outer and be located the below of back stopper, the setting element runs through along upper and lower direction and is equipped with accepts a plurality of second spliced eye of second location portion, the second spliced eye arranges into the multirow along the fore-and-aft direction, certainly the antetheca of setting element is concave to the back and is established a plurality of breachs, and is a plurality of the breach corresponds and leans on preceding one row the second spliced eye is linked together.

9. The electrical connector of claim 8, wherein: the butt joint space with accommodating space all is equipped with two, two the butt joint space is used for with two butt joint spare butt joints, two the butt joint space all is equipped with a plurality ofly first terminal, one of them the butt joint space still is equipped with a plurality of second terminals, another the butt joint space still is equipped with a plurality of third terminals, be equipped with on the setting element and be used for fixing a position a plurality of third spliced eye of second terminal and be used for fixing a position a plurality of fourth spliced eye of third terminal.

10. The electrical connector of claim 9, wherein: the width of the second terminal and the width of the third terminal are both larger than the width of the first terminal, the number of the second terminal and the third terminal is less than the number of the first terminal, and the plurality of the second terminals and the plurality of the third terminals are respectively positioned at the left side and the right side of the plurality of the first terminals.

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