CN201117942Y - Electrical connectors and their terminals - Google Patents

Abstract

An electric connector includes an insulating body and a plurality of terminals accommodated in the insulating body. The insulating body is provided with a boss portion located in the middle and an outer peripheral wall surrounding the boss portion, and a receiving space is defined between the boss portion and the outer peripheral wall. Each terminal includes a U-shaped contact portion located in the receiving space, a vertical holding portion fixed on the inner side of the outer peripheral wall, and a connection portion connecting the contact portion and the holding portion. The connecting portion has a linear inclined surface that slopes downward toward the contact portion, and is used to guide the butt terminals of the butt connector.

Description

Electrical connectors and their terminals

【Technical field】

The utility model relates to an electric connector, in particular to an electric connector used for connecting printed circuit boards.

【Background technique】

People widely use a board-to-board connector to connect two printed circuit boards to achieve signal transmission between the two circuit boards. Please refer to the board-to-board electrical connector disclosed in Japanese Patent No. 3707016, which includes a plug and a socket. The socket includes a rectangular parallelepiped socket body formed by insulating resin and several socket terminals assembled in the socket body. The socket body is provided with a boss portion located at its central part and a peripheral wall surrounding the socket body, and a receiving space for receiving socket terminals is formed between the boss portion and the peripheral wall. The socket terminal includes a U-shaped contact part located in the receiving space, an inverted U-shaped middle part connected with the U-shaped contact part and against the inner surface of the peripheral wall, and extending from the end of the middle part out of the socket body and further bent upwards against the outer periphery The tail of the outer side of the wall. The plug includes a plug body with a "concave" cross-section and a number of plug terminals held on the plug body. The plug terminals are provided with U-shaped contact parts abutting against the two side walls of the plug body. When the plug is docked with the socket, the two side walls of the plug body are respectively inserted into the openings of the U-shaped contact portion of the socket terminal, so that the plug terminal and the socket terminal are in electrical contact. However, since no guide structure is provided on the socket terminal, the plug is not smooth enough when it is docked and inserted. The fit between them is prone to loosening during use.

Therefore, it is necessary to improve the above-mentioned electrical connector to solve the above-mentioned technical problems.

【Content of utility model】

The purpose of the utility model is to provide an electrical connector, which can guide the smooth insertion of the butt terminals.

In order to achieve the above object, the utility model adopts the following technical solutions: an electrical connector, which includes: an insulating body, which is provided with a side wall and defines a receiving space; a plurality of terminals accommodated in the insulating body, each terminal includes a The U-shaped contact portion located in the receiving space, the vertical holding portion fixed on the inner side of the side wall, and the connection portion connecting the contact portion and the holding portion, the connection portion has a linear inclined surface inclined downward toward the contact portion.

The utility model can also adopt the following technical solutions: a terminal of an electrical connector, which includes a U-shaped contact part with two legs, a vertical holding part, a connecting part connecting a leg of the contact part and the holding part, and The tail portion extends outward from the bottom edge of the holding portion, and the connecting portion has a linear inclined surface that slopes downward toward the contact portion.

Compared with the prior art, the electrical connector of the utility model has the following beneficial effects: the electrical connector can guide butt terminals to be smoothly inserted into it.

【Description of drawings】

FIG. 1 is a three-dimensional assembled view of the electrical connector of the present invention.

FIG. 2 is another three-dimensional assembled view of the electrical connector of the present invention.

FIG. 3 is a three-dimensional exploded view of the electrical connector of the present invention.

Fig. 4 is a cross-sectional view of the electrical connector of the present invention.

FIG. 5 is a three-dimensional assembled view of the docking connector of the electrical connector of the present invention.

FIG. 6 is a perspective view of the docking state of the electric connector of the present invention and the docking connector.

Fig. 7 is a cross-sectional view of the docking state of the electrical connector of the present invention and the docking connector.

FIG. 8 is a three-dimensional assembled view of another embodiment of the electrical connector of the present invention.

FIG. 9 is a cross-sectional view of another embodiment of the electrical connector of the present invention.

【Detailed ways】

Please refer to Fig. 1 to Fig. 4, the electrical connector 1 of the present utility model comprises a substantially cuboid insulating body 10, a plurality of terminals 20 and metal holders 30 accommodated in the insulating body 10, and the insulating body 10 includes a bottom Wall 11, a substantially rectangular boss portion 12 protruding upward from the central position of the bottom wall 11, and a peripheral wall 13 surrounding the boss portion 12, a square receiving space 100 is formed between the peripheral wall 13 and the boss portion 12 . The receiving space 100 is symmetrical about the longitudinal axis and the transverse axis of the insulating body 10 . Two long sides of the peripheral wall 13 are defined as side walls 14 , and two short sides are defined as end walls 15 . There are a number of vertical holding grooves 140 arranged at intervals along the extension direction of the two side walls 14 and penetrating the bottom wall 11 downwards, and the long side of the boss portion 12 also forms a number of grooves facing the holding grooves 140 120 , the bottom wall 11 is provided with a plurality of through grooves 110 , respectively communicating with the corresponding holding grooves 140 and the grooves 120 . A groove 150 is respectively recessed on the two end walls 15 for installing the metal holder 30 .

Please refer to Fig. 3 to Fig. 4, and as shown in Fig. 5 and Fig. 6, the terminals 20 are made of sheet metal, and each terminal 20 includes a substantially U-shaped contact portion 21, from which the contact portion 21 is close to the side wall 14. A connecting portion 22 extending substantially horizontally outward from the leg 21 a , a holding portion 23 extending downward from the connecting portion 22 , and a tail portion 24 horizontally extending outward from the bottom of the holding portion 23 out of the insulating housing 10 . The other leg 21b of the contact portion 21 is bent downward toward the connecting portion 22 to form an arc-shaped free end 21c. The terminal 20 is assembled into the insulating body 10 through the through groove 110 of the bottom wall 11 , the contact portion 21 and the connecting portion 22 are located in the receiving space 100 of the insulating body 10 , and the holding portion 23 is clamped in the holding groove 140 of the side wall 14 , the tail portion 24 extends out of the insulating body 10 , and the leg 21 b of the contact portion 21 is close to the boss portion 12 of the insulating body 10 .

A pair of metal holders 30 are arranged at both ends of the insulating body 10, the holders 30 are provided with a vertical main body 31 across the insulating body 10, a pair of side parts 32 bent horizontally from both ends of the main body 31 and a For soldering feet 33 respectively extending from the bottom edge of each side portion 32 . The main part 31 and the side part 32 form a U-shaped structure, and the bottom of the main part 31 is provided with a fastening piece 34 for interference fit with the groove 150 of the insulating housing 10 . During assembly, the main parts 31 of the two holders 30 are respectively inserted into the grooves 150 of the insulating body 10 , the side parts 32 are attached to the outside of the sidewall 14 , and the welding feet 33 are aligned with the tail parts 24 of the terminals 20 .

Please continue to refer to FIG. 4, and as shown in FIG. 5 to FIG. 7, the connecting portion 22 of the terminal 20 has a linear inclined surface 22a that slopes downward toward the contact portion 21, and the leg 21a of the contact portion 21 close to the connecting portion 22 is downward. And extend outward to form a linear slope 21d. When the electrical connector 1 is mated with a docking electrical connector 4 provided with a docking terminal 40, the inclined surface 22a of the connecting portion 22 of the terminal 20 can guide the docking terminal 40 to be smoothly inserted into the U-shaped opening of the contact portion 21, The free end 21c of the terminal 20 forms a first contact point that interferes with the docking terminal 40, and the connection between the leg 21a of the contact portion 21 and the connecting portion 22 forms a second contact point that interferes with the docking terminal 40, so that the electrical connector 1 and the docking terminal 40 are connected. The connector 4 is electrically connected. In addition, the inclined surface 21d of the leg 21a can enhance the fastening effect between the two connectors 1 , 4 .

Referring to Fig. 8 and Fig. 9, the terminal 20 of the electrical connector 1 of the present embodiment has another transformation form, the structure of the terminal 20' of this variation embodiment is roughly similar to that of the terminal 20, and each terminal 20' includes approximately A U-shaped contact portion (unmarked), a connecting portion (unmarked) extending substantially horizontally outward from a leg of the contacting portion (unmarked), a holding portion (unmarked) extending downward from the connecting portion (unmarked) ) and a tail portion 24 ′ extending horizontally outward from the bottom end of the holding portion (not labeled) of the insulating housing 10 . The only difference between the terminal 20' and the terminal 20 is that the tail portion 24' extends horizontally from the holding portion out of the insulating body 10 and is further bent upwards against the outside of the side wall 14.

Claims (10)

1. electric connector, it comprises insulating body and some terminals that is contained in the insulating body, described insulating body is provided with a sidewall and a receiving space, described terminal comprises a U-shaped contact site that is positioned at receiving space, be immobilizated in the vertical holding parts of inside sidewalls and connect the connecting portion of contact site and holding parts, it is characterized in that: described connecting portion has one towards linear inclined plane that contact site has a down dip.

2. electric connector as claimed in claim 1 is characterized in that: insulating body comprises that the boss portion of diapire, projection on the diapire mediad reaches the peripheral wall around this boss portion, and described receiving space is formed between boss portion and the peripheral wall.

3. electric connector as claimed in claim 2, it is characterized in that: the corresponding some holding slots and the conduit of forming in the outside, long limit of the inboard, long limit of peripheral wall and boss portion, be used to locate corresponding terminal, be formed with the groove that some and corresponding holding slot and conduit are communicated with on the diapire, so that terminal is in the diapire group is gone into the receiving space of insulating body.

4. electric connector as claimed in claim 3 is characterized in that: the both sides of termination contact portion form two legs, the downward and outward-dipping formation one linear inclined-plane near the leg of connecting portion.

5. electric connector as claimed in claim 4 is characterized in that: the terminal arc free end that forms of another leg.

6. electric connector as claimed in claim 5, it is characterized in that: it further comprises a pair of metal retainer that is arranged on the insulating body two ends, and described retaining piece is provided with the sidepiece of a vertical main part, the bending of a pair of autonomous body both ends horizontal and a pair of respectively from each extended welding foot in sidepiece base.

7. electric connector as claimed in claim 6 is characterized in that: terminal comprises that also one outwards extend horizontally away the afterbody of insulating body from holding parts.

8. electric connector as claimed in claim 6 is characterized in that: terminal comprises that also one is upwards bent the afterbody that is posted by sidewall outer after holding parts outwards extend horizontally away insulating body and further.

9. connector terminals, it connecting portion that comprises that a U-shaped contact site that is provided with two legs, a vertical holding parts, connect contact site one leg and holding parts reaches the afterbody that extends laterally from the holding parts base, it is characterized in that: described connecting portion has one towards linear inclined plane that contact site has a down dip.

10. connector terminals as claimed in claim 9 is characterized in that: the downward and formation one linear inclined-plane that slopes inwardly of the described leg that is connected with connecting portion.

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