CN221102477U - Electric connector - Google Patents

Abstract

The utility model provides an electric connector, which comprises an insulating body and a plurality of terminals accommodated in the insulating body, wherein the insulating body is provided with a base part and a butt joint part protruding forwards from the base part, the terminals are inserted into the insulating body from back to front, and are provided with a contact arm accommodated in the butt joint part, a connecting arm connected to the rear end of the contact arm and a tail part extending downwards from the connecting arm to the base part, and the front end of the contact arm takes the shape of a fork and is accommodated in the butt joint part; the tail parts are distributed in front and back rows and comprise an inner side row tail part and an outer side row tail part, and the inner side row tail part is provided with a lower abutting part which protrudes backwards and extends out of the base part. Compared with the prior art, the electric connector has the advantages that the terminal structure is optimized, the terminal where the inner tail discharge part is positioned is provided with the lower abutting part corresponding to the jig, and in the process that the terminal is inserted into the insulating body from back to front, the jig can apply force to push or resist the lower side position of the terminal by virtue of the lower abutting part, so that the problem that the lower side position of the terminal is tilted in the assembling and inserting process can be avoided.

Description

Electric connector

Technical Field

The present disclosure relates to electrical connectors, and particularly to an electrical connector.

Background

With the development trend of miniaturization, thinness and thinness of consumer electronic products such as notebooks, tablet computers and mobile phones, the requirements on the design and manufacturing process of parts of the products are higher, and as the products are increasingly thinner and thinner, the internal space of the products is also very narrow, so that the internal space of the products is required to be densely distributed, the volumes of the electronic parts are also smaller and lighter, and the requirements on the manufacturing process and the reliability of product connection are higher. The present invention relates to an electrical connector, and more particularly to an electrical connector with a metal terminal and a metal terminal, which are arranged in two or more rows and are arranged on a circuit board.

Disclosure of utility model

The utility model provides an electric connector, which solves the problems of uneven stress, easy rotation or tilting during terminal assembly in the prior art.

In order to solve the technical problems, the utility model adopts the following technical scheme: the electric connector comprises an insulating body and a plurality of terminals accommodated in the insulating body, wherein the insulating body is provided with a base part and a butt joint part protruding forwards from the base part, the terminals are inserted into the insulating body from back to front, and are provided with a contact arm accommodated in the butt joint part, a connecting arm connected to the rear end of the contact arm and a tail part extending downwards from the connecting arm to form a fork shape, and the front end of the contact arm is accommodated in the butt joint part; the tail parts are distributed in front and back rows and comprise an inner side row tail part and an outer side row tail part, and the inner side row tail part is provided with a lower abutting part which protrudes backwards and extends out of the base part.

Further, the rear end of the contact arm forms an upper abutting part; the upper abutting part and the lower abutting part are distributed up and down so as to be pushed by a jig to assemble the terminal into the insulator body from back to front.

Further, the lower abutment protrudes rearward beyond the upper abutment and beyond the base, while neither the top nor the bottom edge of the lower abutment protrudes in the vertical direction beyond the base.

Further, an opening is formed on the back side of the base, the connecting arm of the terminal is exposed in the opening, a plurality of clamping grooves for clamping the tail parts of the inner row and the tail parts of the outer row are formed at the bottom of the opening, and the top edge and the bottom edge of the lower abutting part do not protrude out of the clamping grooves in the vertical direction.

Further, the clamping groove penetrates through the opening upwards and penetrates through the bottom surface of the base downwards, and the lower abutting part and the tail part of the outer side row protrude out of the clamping groove backwards; the inner tail part and the outer tail part protrude downwards from the bottom surface of the base part, and the inner tail part is propped against the base part forwards.

Further, the contact arms in the butt joint part are arranged in at least two rows which are distributed up and down; in the terminals where the tail parts of the inner rows are located, the contact arms of part of the terminals are located in the upper row, and the contact arms of the other part of the terminals are distributed in the lower row.

Further, the electrical connector further comprises a protective plug assembled on the back side of the base, wherein a plurality of ribs are formed on the bottom edge of the protective plug, the ribs protrude downwards, part of the ribs are abutted on the lower abutting part or stop right above the lower abutting part, and the other part of the ribs are abutted on the tail part of the outer row or stop right above the tail part of the outer row.

Further, the guard plug covers the back side of the connecting arm, and the guard plug is provided with a plurality of legs extending forward, the legs extend into the base and are in interference fit with the base, and the legs are further provided with an outer surface extending obliquely inwards.

Further, at least two rows of receiving grooves are formed in the abutting portion to accommodate the contact arms, the receiving grooves penetrate forward through the front surface of the abutting portion, and at least two rows of circular insertion holes are formed in the front surface.

Compared with the prior art, the electric connector has the advantages that the terminal structure is optimized, the terminal where the inner tail discharge part is positioned is provided with the lower abutting part corresponding to the jig, and in the process that the terminal is inserted into the insulating body from back to front, the jig can apply force to push or resist the lower side position of the terminal by virtue of the lower abutting part, so that the problem that the lower side position of the terminal is tilted in the assembling and inserting process can be avoided.

Drawings

Fig. 1 is a perspective view of an electrical connector according to the present utility model.

Fig. 2 is a backside view of the electrical connector of the present utility model.

Fig. 3 is a schematic diagram showing the separation of the protective plug and the insulating body of the electrical connector according to the present utility model.

Fig. 4 is a backside view of the electrical connector of the present utility model with the terminals removed.

Fig. 5 is a backside view of an electrical connector of the present utility model from another perspective after removal of terminals.

Fig. 6 is a perspective view of a shield plug of the electrical connector of the present utility model.

Fig. 7 is a cross-sectional view of an electrical connector according to the present utility model.

Fig. 8 is a schematic view of a portion of a terminal of an electrical connector according to the present utility model.

Detailed Description

Referring to fig. 1 to 8, the present utility model provides an electrical connector, which includes an insulation body 10, a plurality of terminals 20 accommodated in the insulation body 10, a metal housing 30 covered on the insulation body 10, a protection plug 40 mounted on the insulation body 10, and fixing assemblies 50 fixed at two ends of the insulation body 10, wherein the metal housing 30 covers the front side of the insulation body 10 to play a role of protecting the insulation body 10, the protection plug 40 is assembled at the back side of the insulation body 10 to play a role of protecting the terminals 20, and the fixing assemblies 50 are positioned at two ends of the insulation body 10 to fix the metal housing 30 on the insulation body 10. The structural features of the foregoing components are described in detail below.

The insulating body 10 is provided with a base 11 and a pair of butt joint parts 12 protruding forwards from the base 11, the base 11 and the butt joint parts 12 are integrally connected and manufactured through an injection molding process, wherein the base 11 is provided with a top surface 110, a pair of side surfaces 111 positioned at two sides of the top surface 110, a front end surface 112 positioned at the front side of the top surface 110 and a rear end surface 113 positioned at the rear side of the top surface 110, preferably, two ends of the base 11 are provided with a pair of buckling concave parts 114 for buckling and fixing with the metal shell 30, the buckling concave parts 114 are formed on the top surface 110 or the side surfaces 111, or can be formed on the top surface 110 and the side surfaces 111 at the same time, as shown in fig. 2; the front end surface 112 is vertically arranged and parallel to the rear end surface 113, a pair of fixing holes 13 are formed on the front end surface 112 and positioned at two ends of the butting portion 12, and are used for accommodating and fixing the fixing assembly 50, the fixing holes 13 penetrate through the front end surface 112 and the rear end surface 113 in front-back direction, and the front end surface 112 is used for facing a butting-end electric connector (not shown); the rear end face 113 is provided with an opening 14 for inserting the terminal 20 into the insulating body 10 from the back to the front, and the opening 14 and the abutting portion 12 are correspondingly disposed in the front-back direction, preferably, the opening 14 is substantially rectangular, a plurality of clamping grooves 15 for clamping the terminal 20 are formed at the bottom of the opening 14, the plurality of clamping grooves 15 penetrate downwards through the bottom surface of the insulating body 10 and are distributed on the rear end face 113 of the base 11 at equal intervals along the length direction of the base 11, it is worth to say that at least one first fool-proof structure 16 is formed in the opening 14, the first fool-proof structure 16 is located at two sides or top sides of the opening 14, so that the opening 14 is in an asymmetric shape, preferably, the first fool-proof structure 16 is an inclined plane, is located at one end of the opening 14 and faces the inner side of the opening 14, and of course, the first fool-proof structure 16 may also face or face away from the opening 14, or be distributed on the rear end face 113 of the base 11 at equal intervals, and the opening 14 is in an asymmetric shape, so that the plug 40 can be inserted into the opening 14 accurately, and the plug can be positioned and the plug 40 is prevented from being inserted into the opening. The docking portion 12 is formed by protruding forward from the front end surface 112 of the base portion 11, and a plurality of receiving grooves 17 are formed in the docking portion 12 for receiving the contact arms 22 of the plurality of terminals 20, and the receiving grooves 17 extend in the front-rear direction and penetrate the opening 14 rearward so as to be exposed in the opening 14, as shown in fig. 4 and 5, preferably, the plurality of receiving grooves 17 are divided into three rows distributed from top to bottom, and three rows of circular insertion holes are formed on the front surface of the docking portion 12.

The terminals 20 are inserted into the insulating body 10 from the back to the front through the openings 14, and the terminals 20 are provided with contact arms 22 accommodated in the butting portion 12, connecting arms 23 connected to the rear ends of the contact arms 22 and exposed in the openings 14, and tail portions 21 formed by extending downwards from the connecting arms 23. The front end of the contact arm 22 is fork-shaped, and the rear end of the contact arm 22 is provided with an upper abutting part 24 for abutting and pushing the jig. The tail 21 extends from top to bottom and is retained in the slot 15, and further protrudes out of the bottom of the base 11 for being fixedly connected with a circuit board (not shown).

Preferably, the contact arms 22 of the terminals 20 are arranged in three rows vertically distributed in the abutting portion 12 to correspond to the receiving grooves 17, the tail portions 21 of the terminals 20 are arranged in two rows front and rear on the back side of the base 11, and include an inner row tail portion 21A and an outer row tail portion 21B to correspond to two rows of soldering holes on a circuit board (not shown), wherein the arrangement direction of the inner row tail portion 21A is parallel to the arrangement direction of the outer row tail portion 21B, the inner row tail portion 21A is located at the inner side of the outer row tail portion 21B, and a lower abutting portion 25 protruding backward is provided for abutting and pressing by a fixture a, it is required to say that the tail portions 25 are located in the clamping groove 15, the tail ends of the lower abutting portion 25 protrude backward out of the clamping groove 15 to be aligned with the outer row tail portion 21B, the top edge and the bottom edge of the lower abutting portion 25 are located in the clamping groove 15 in the vertical direction, preferably not protruding out of the bottom surface of the inner row tail portion 11A, and the bottom surface of the lower abutting portion 11 extends downward.

In this way, even if the inner tail portion 21A is positioned at the inner side, it is possible to contact the jig a via the lower contact portion 25 protruding rearward, and the jig a pushes the terminal 20 forward into the insulating body 10 by directly contacting or pressing against the lower contact portion 25. That is, in the case of the terminal 20 in which the inner tail portion 21A is located, if the terminal 20 is high, the upper abutting portion 24 and the lower abutting portion 25 which are vertically distributed can abut against the jig a, so that the jig a can press the terminal 20 on both upper and lower sides simultaneously, thereby effectively preventing the problem that the terminal 20 rotates or one end of the terminal is tilted due to uneven and unstable stress during the pressing process, of course, if the terminal 20 is low, the upper abutting portion 24 is not provided, the terminal 20 can be pressed into the base 11 smoothly only by abutting the lower abutting portion 25 against the jig, and the existence of the lower abutting portion 25 solves the problem that the inner tail portion 21A is difficult to be pressed against by the jig, thereby facilitating the assembling operation of the terminal 20.

The metal shell 30 is provided with a front cover portion 31 covering the front end surface 112 of the base 11 and an annular cover portion 32 surrounding and covering the surface of the butt joint portion 12, the front cover portion 31 and the annular cover portion 32 are integrally formed by punching, and mounting holes (not shown) corresponding to the fixing holes 13 are formed in the front cover portion 31, preferably, latch arms 33 extending by bending backward are formed at both side edges of the front cover portion 31, and the latch arms 33 are retained in the latch recesses 114 of the base 11, so that the metal shell 30 and the insulating body 10 are fixedly combined.

The protection plug 40 is provided with a main cover 41 and a plurality of legs 42 extending from the main cover 41 forward integrally, the main cover 41 is shaped to match the shape of the opening 14, and is configured to be installed into the opening 14 from the rear to the front, that is, the main cover 41 is provided with a second foolproof structure 43 correspondingly matched with the first foolproof structure 16, preferably, the second foolproof structure 43 is an inclined surface, which is located at two ends of the main cover 41 to match and match with the first foolproof structure 16, so that the main cover 41 can be plugged into the opening 14. It should be noted that, a plurality of ribs 44 are formed at the bottom edge of the main cover 41, the plurality of ribs 44 are disposed in one-to-one correspondence with the plurality of clamping grooves 15, and the ribs 44 protrude into the clamping grooves 15 and abut against the terminals 20. The legs 42 are distributed at the edge of the main cover 41, and at least two legs 42 are located at both side edges of the main cover 41, and at least two legs 42 are located at the top side edge of the main cover 41, preferably, the legs 42 extend from back to front and are provided with an outer surface 45 extending obliquely inward to play a guiding role during insertion of the shield plug 40 into the opening 14.

The fixing assembly 50 is used for combining and fixing the metal housing 30 and the insulating body 10 to achieve reliable connection, and the fixing assembly 50 includes a pair of bolts 51 and a pair of nuts 52, the nuts 52 are assembled into the pair of fixing holes 13 at two ends of the base 11 from back to front, and the bolts 51 are screwed into the fixing holes 13 from front to back to be fixedly matched with the nuts 52.

In summary, in the electrical connector of the present utility model, by optimizing the structure of the terminal 20, the terminal 20 at which the inner tail portion 21A is located is provided with the lower contact portion 25 corresponding to the jig a, and in the process of inserting the terminal 20 into the insulation body 10 from the rear to the front, the jig a can press or resist the lower side position of the terminal 20 by the lower contact portion 25, so that the problem of tilting of the lower side position of the terminal 20 in the assembling and inserting process can be avoided.

The above description is only of the preferred embodiments of the present utility model, and is not intended to limit the utility model in any way, and any person skilled in the art may make many possible variations and modifications to the technical solution of the present utility model using the above disclosed method without departing from the scope of the technical solution of the present utility model, which is defined in the claims.

Claims (9)

1. The utility model provides an electric connector, includes the insulator and accommodates in a plurality of terminals in the insulator, the insulator is equipped with a basal portion and from the protruding butt joint portion that stretches out of basal portion forward, the terminal insert forward from the back in the insulator to be equipped with the contact arm of acceping in butt joint portion, connect in the linking arm of contact arm rear end, extend the afterbody of basal portion downwards from the linking arm, its characterized in that: the front end of the contact arm takes the shape of a fork and is accommodated in the abutting part; the tail parts are distributed in front and back rows and comprise an inner side row tail part and an outer side row tail part, and the inner side row tail part is provided with a lower abutting part which protrudes backwards and extends out of the base part.

2. The electrical connector of claim 1, wherein: the rear end of the contact arm forms an upper abutting part; the upper abutting part and the lower abutting part are distributed up and down so as to be pushed by a jig to assemble the terminal into the insulator body from back to front.

3. The electrical connector of claim 2, wherein: the lower abutting portion protrudes backward beyond the upper abutting portion and protrudes out of the base portion, and the top edge and the bottom edge of the lower abutting portion do not protrude out of the base portion in the vertical direction.

4. The electrical connector of claim 1, wherein: an opening is formed on the back side of the base, the connecting arm of the terminal is exposed in the opening, a plurality of clamping grooves for clamping the tail parts of the inner row and the tail parts of the outer row are formed at the bottom of the opening, and the top edge and the bottom edge of the lower abutting part do not protrude out of the clamping grooves in the vertical direction.

5. The electrical connector of claim 4, wherein: the clamping groove penetrates through the opening upwards and penetrates through the bottom surface of the base downwards, and the lower abutting part and the tail part of the outer side row protrude backwards and extend out of the clamping groove; the inner tail part and the outer tail part protrude downwards from the bottom surface of the base part, and the inner tail part is propped against the base part forwards.

6. The electrical connector of any one of claims 1 to 5, wherein: the contact arms in the butt joint part are arranged in at least two rows which are distributed up and down; in the terminals where the tail parts of the inner rows are located, the contact arms of part of the terminals are located in the upper row, and the contact arms of the other part of the terminals are distributed in the lower row.

7. The electrical connector of claim 6, wherein: the electric connector further comprises a protective plug assembled on the back side of the base part, a plurality of convex ribs are formed on the bottom edge of the protective plug, the convex ribs extend downwards in a protruding mode, part of the convex ribs are abutted to the lower abutting part or stop right above the lower abutting part, and the other part of the convex ribs are abutted to the tail part of the outer side row or stop right above the tail part of the outer side row.

8. The electrical connector of claim 7, wherein: the guard plug covers the back side of the connecting arm, and is provided with a plurality of legs extending forwards, the legs extend into the base and are in interference fit with the base, and the legs are further provided with an outer surface extending inwards in an inclined mode.

9. The electrical connector of claim 8, wherein: at least two rows of accommodating grooves are formed in the abutting portion so as to accommodate the contact arms, the accommodating grooves penetrate forward through the front surface of the abutting portion, and at least two rows of circular insertion holes are formed in the front surface.