CN221041612U - Electric connector - Google Patents

Abstract

The utility model discloses an electric connector, comprising: a housing having a locking pin on an inner surface thereof; the two terminal modules are assembled and matched mutually and are accommodated in the shell together, each terminal module comprises an insulating body, a first terminal and a second terminal, the insulating body is provided with a first terminal groove and a second terminal groove, the surface of each insulating body facing the other insulating body is provided with a sunken key groove and a locking key protruding towards the other insulating body, the key grooves are communicated with the first terminal groove of the respective insulating body, each locking key protrudes into the first terminal groove through the key groove of the other insulating body, the locking key blocks the first terminal in the first terminal groove, the outer surface of each insulating body faces the locking pin and is provided with a locking groove in a concave mode, the locking groove is communicated with the second terminal groove of the respective insulating body, each locking pin protrudes into the second terminal groove through the locking groove of one insulating body, and the locking pin blocks the second terminal in the second terminal groove.

Description

Electric connector

[ Field of technology ]

The present utility model relates to an electrical connector, and more particularly, to an electrical connector for maintaining a terminal position.

[ Background Art ]

Referring to fig. 6, the electrical connector 1000 'includes a housing 2' and two terminal modules 1 'enclosed by the housing 2', each terminal module 1 'includes an insulating body 11' and two conductive terminals (not shown), the insulating body 11 'has a terminal slot 111' for accommodating the conductive terminals, a locking pin 20 'is protruding on an inner surface of the housing 2', a locking slot 115 'corresponding to the locking pin 20' is recessed on an outer surface of the insulating body 11', the locking slot 115' communicates with the terminal slot 111', and the locking pin 20' protrudes into the terminal slot 111 'through the locking slot 115', so as to block the conductive terminals, thereby maintaining the positions of the conductive terminals. When the electric connector is assembled, the two conductive terminals are inserted into the insulating body 11 'to form the terminal module 1', and then the terminal module 1 'is installed into the shell 2', so that the locking pins keep the positions of the conductive terminals.

Wherein the two conductive terminals are functionally different (e.g. one of the conductive terminals is used for mating with a relatively longer mating terminal), and have different mechanical and electrical performance requirements, the different performance requirements make the blocked positions of the two conductive terminals different from each other, and the blocked positions cannot be aligned in a single direction, so that two mutually staggered locking pins 20 'must be correspondingly arranged on the housing 2'.

In order to avoid that the locking pin 20' of the corresponding one of the conductive terminals is blocked by the other conductive terminal during the mutual assembly of the terminal module 1' and the housing 2', one of the conductive terminals and its corresponding locking groove 115' must be more biased towards the housing 2' than the other conductive terminal, whereas receiving the relatively protruded conductive terminal results in an increase in the volume of the terminal module 1', and said locking pin 20' provided in the housing, which cooperates with said relatively protruded conductive terminal, also protrudes relatively outwards, resulting in a corresponding increase in the volume of the housing 2', resulting in a larger usage space of the electrical connector 1000 '.

[ utility model ]

Against the background, the electric connector of the utility model is provided with two terminal modules, each terminal module comprises an insulating body and a conductive terminal, the insulating body is simultaneously provided with a locking key and a key groove, the locking key of each terminal module enters the terminal groove through the key groove of the other insulating body to carry out position maintenance on the conductive terminal of the other terminal module, and the two terminal modules mutually provide position maintenance for the first terminal accommodated by each terminal module.

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

An electrical connector, comprising: a housing having a receiving space, two opposite inner surfaces of the housing facing the receiving space each having a locking pin; the two mutually assembled terminal modules are accommodated in the accommodating space together, each terminal module comprises an insulating body, a first terminal and a second terminal, the insulating body is provided with a first terminal groove for accommodating the first terminal and a second terminal groove for accommodating the second terminal, the surface of each insulating body facing the other insulating body is provided with a sunken key groove and a locking key protruding towards the other insulating body, the key grooves are communicated with the first terminal groove of each insulating body, each locking key protrudes into the first terminal groove through the key groove of the other insulating body, the locking key forms a blocking for the first terminal in the first terminal groove and prevents the first terminal from exiting the first terminal groove, the outer surface of each insulating body faces the locking pin and is concavely provided with a locking groove, the locking groove is communicated with the second terminal groove of each insulating body, each locking pin passes through one of the locking grooves and protrudes into the first terminal groove, the second terminal is prevented from exiting the second terminal groove, and the second terminal is prevented from exiting the second terminal groove.

Further, the locking key has a base, an extension portion connected to the base, and a distal end portion connected to the extension portion, the distal end portion is received in the first terminal slot, the first terminal is inserted into the insulating body along a plugging direction, the base and the distal end portion extend perpendicular to the plugging direction, and the extension portion extends obliquely to the plugging direction.

Further, the base portions of the two locking keys are staggered along the inserting direction, the two tail end portions are aligned along the direction perpendicular to the inserting direction, and the two extending portions are close to each other.

Further, the base portion has a limiting surface facing the other insulating body, and can abut against the other insulating body to limit the locking key from excessively entering the key slot.

Further, one side of the extending part, which is close to the matched key groove, is provided with an arc surface, and the key groove is provided with an arc-shaped guide angle matched with the arc surface.

Further, the first terminal is assembled to the insulating body along an inserting direction, the first terminal is provided with a plurality of first terminals and is arranged on the insulating body in a row along an arrangement direction, the housing is provided with a mounting opening perpendicular to the arrangement direction, the two terminal modules are assembled to the housing along the arrangement direction, the outer surface of the insulating body is provided with a notch communicated with the key groove in the arrangement direction, and the key groove and the locking groove are arranged in a staggered manner in the arrangement direction.

Further, the housing has a protruding strip, and the protruding strip fills the gap between the two insulating bodies in the accommodating space.

Further, the first terminal is a power terminal, the second terminal is a signal terminal, the length of the first terminal is greater than that of the second terminal, the first terminal is provided with a first limiting surface blocked by the locking key, the second terminal is provided with a second limiting surface blocked by the locking pin, the first limiting surface and the second limiting surface are positioned on different planes, the insulating body is provided with a power supply area only for accommodating the first terminal and a signal area only for accommodating the second terminal, the locking key and the key slot are only arranged in the power supply area, the locking slot is only arranged in the signal area, and the outer surface of the power supply area and the outer surface of the signal area are positioned on the same plane.

An electrical connector, comprising: a housing having an accommodating space; the two terminal modules facing each other are both accommodated in the accommodating space, each terminal module comprises an insulating body and at least one first terminal, the insulating body is provided with at least one first terminal groove, the first terminal is accommodated in the first terminal groove, the surface of each insulating body facing the other insulating body is provided with a sunken key groove and a locking key protruding towards the other insulating body, the key grooves are communicated with at least one first terminal groove of each insulating body, each locking key protrudes into the first terminal groove through the key groove of the other insulating body, and the locking key blocks the first terminal in the first terminal groove and prevents the first terminal from exiting the first terminal groove.

Further, the locking key has a base, an extension portion connected to the base, and a distal end portion connected to the extension portion, the distal end portion is received in the first terminal slot, the first terminal is inserted into the insulating body along a plugging direction, the base and the distal end portion extend perpendicular to the plugging direction, and the extension portion extends obliquely to the plugging direction.

The technical means has the following technical effects: the two terminal modules are mutually matched by arranging the locking key and the key groove on the surfaces facing each other so as to keep the positions of the first terminals of the other side, and the first terminals of the two terminal modules are mutually close, so that compared with the prior art, the first terminals do not need to be more biased towards the shell to protrude relative to the second terminals, and a part of the terminal modules for accommodating the first terminals are prevented from protruding outwards, and the occupied space of the electric connector is reduced as a whole. In addition, the technical scheme is easy to manufacture and assemble, and is beneficial to reducing the mold development cost of the additional position maintaining piece, the manufacturing material cost and the assembly cost of the position maintaining piece.

[ Description of the drawings ]

FIG. 1 is a perspective view of an electrical connector of the present utility model;

FIG. 2 is an exploded view of FIG. 1;

Fig. 3 is a perspective view of one of the terminal modules of fig. 2;

fig. 4 is a cross-sectional view of the power supply regions of two terminal modules of fig. 2;

fig. 5 is a cross-sectional view of the signal areas of two terminal modules of fig. 2;

Fig. 6 is a schematic diagram of the background art.

Reference numerals illustrate:

insulation body 11 of terminal module 1 of electric connector 1000

Arc-shaped lead angle 1121 of key groove 112 of first terminal groove 111

Limiting surface S1 of base 1131 of locking key 113

Extension 1132 arcuate S2 distal portion 1133

Second terminal slot 114 locking slot 115 power region 116

First terminal 12 with signal area 117 and notch 118

First limiting surface 121 second terminal 13 second limiting surface 131

Housing 2 housing space 21 mounting opening 22

Raised strips 23 lock pin 20 cable 3

[ Detailed description ] of the invention

For a better understanding of the utility model with objects, structures, features, and effects, the utility model will be described further with reference to the drawings and to the detailed description.

Fig. 1 to 5 are schematic views of an electrical connector 1000 according to the present utility model, wherein the electrical connector 1000 is a cable 3 plug in the present embodiment. The electrical connector 1000 includes two terminal modules 1 assembled and mated with each other, a housing 2 accommodating the terminal modules 1, and a cable 3 connecting the terminal modules 1.

As shown in fig. 2 and 3, each terminal module 1 includes an insulating body 11, a plurality of first terminals 12 and a plurality of second terminals 13, a plurality of the first terminals 12 and a plurality of the second terminals 13 are all incorporated into the insulating body 11 along the same insertion direction, a plurality of the first terminals 12 are arranged in one row in one insulating body 11, a plurality of the second terminals 13 are arranged in two rows in one insulating body 11, the arrangement direction of a plurality of the first terminals 12 and the arrangement direction of a plurality of the second terminals 13 are mutually parallel and perpendicular to the insertion direction, two of the terminal modules 1 are combined into a whole along a combined direction perpendicular to the insertion direction and the arrangement direction, and two of the terminal modules 1 are incorporated into the housing 2 as a whole along the arrangement direction. For convenience of the detailed description of the electrical connector 1000 of the present utility model, the OZ direction shown in fig. 2 is taken as the inserting direction, the X1X2 direction is taken as the arranging direction, and the Y1Y2 direction is taken as the combining direction, but the above-mentioned directions are not meant to limit the present utility model.

As shown in fig. 2, the tail portion of each of the first and second terminals 12 and 13 is connected to the cable 3, and the head portions of the first and second terminals 12 and 13 are used for connecting with mating terminals (not shown) of a mating connector. The first terminal 12 is a power terminal, the second terminal 13 is a signal terminal, in this embodiment, the first terminal 12 is thicker than the second terminal 13, the cable 3 to which the power terminal is connected is also thicker than the cable 3 to which the signal terminal is connected, so as to carry a larger current, and accordingly, the pulling force from the cable 3, which the first terminal 12 faces against the second terminal 13, is also larger.

As shown in fig. 3 to 4, the insulating body 11 has a plurality of first terminal grooves 111 and a plurality of second terminal grooves 114, each of the first terminal grooves 111 accommodates one of the first terminals 12, and each of the second terminal grooves 114 accommodates one of the second terminals 13. The surface of each of the insulating bodies 11 facing the other insulating body 11 has a recessed key groove 112 and a locking key 113 protruding toward the other insulating body 11. The key grooves 112 communicate with the first terminal grooves 111, each of the locking keys 113 protrudes into the first terminal groove 111 through the key groove 112 of the other insulating body 11, and the distal end of the locking key 113 forms a block against the first terminal 12 in the first terminal groove 111, preventing the first terminal 12 from being withdrawn from the first terminal groove 111.

As shown in fig. 2 and 5, an outer surface of each insulating body 11 facing the locking pin 20 is concavely provided with a locking groove 115, the locking grooves 115 are communicated with the second terminal grooves 114, two opposite inner surfaces of the housing 2 facing the insulating body 11 are respectively provided with a convex locking pin 20, the locking pins 20 are accommodated by the locking grooves 115, and the tail ends of the locking pins 20 form a block for the second terminals 13 in the second terminal grooves 114, so that the second terminals 13 are prevented from backing out of the second terminal grooves 114.

As shown in fig. 2 and 3, the insulating body 11 has a power supply region 116 accommodating only the first terminal 12 and a signal region 117 accommodating only the second terminal 13, and the lock key 113 and the key groove 112 are provided only in the power supply region 116 to provide position retention for the first terminal 12. The locking groove 115 provides only the signal zone 117 for providing a position hold for the second terminal 13. In this embodiment, the first terminal 12 is longer than the second terminal 13 to butt against the longer butt-joint terminal, the position where the first terminal 12 is blocked by the locking key 113 and the position where the second terminal 13 is blocked by the locking pin 20 are arranged in a staggered manner along the arrangement direction, and correspondingly, the locking key 113 and the locking pin 20 are arranged in a staggered manner along the arrangement direction, and the key groove 112 for accommodating the locking key 113 and the locking groove 115 for accommodating the locking pin 20 are arranged in a staggered manner along the arrangement direction. The outer surface of the power region 116 is in the same plane as the outer surface of the signal region 117.

As shown in fig. 2 to 4, the key groove 112 and the locking key 113 of the same insulating body 11 are adjacent, and the edge of the key groove 112 away from the adjacent locking key 113 has an arc-shaped lead angle 1121. Each of the key grooves 112 communicates with a plurality of the first terminal grooves 111. In addition, each of the locking grooves 115 communicates with a plurality of the second terminal grooves 114.

As shown in fig. 3 to 4, each of the locking keys 113 has a base portion 1131, an extension portion 1132 connected to the base portion 1131, and a distal end portion 1133 connected to the extension portion 1132, the base portion 1131 and the distal end portion 1133 extending in the combined direction, the extension direction of the extension portion 1132 being inclined to the insertion direction and the combined direction. When the two terminal modules 1 are combined with each other, the base 1131 has a limiting surface S1 facing the other insulating body 11, and can abut against the other insulating body 11 to limit the locking key 113 from excessively entering the key slot 112. The extending portion 1132 has an arc surface S2 near the matched key slot 112, and is matched with the arc-shaped guide angle 1121 of the matched key slot 112, so as to form a smooth transition and increase the contact area, and prevent the locking key 113 from being damaged by stress concentration. The distal end portion 1133 is accommodated in the first terminal groove 111, and is blocked by the first terminal 12, thereby preventing the first terminal 12 from being withdrawn from the first terminal groove 111. The base portions 1131 of the two locking keys 113 are staggered along the inserting direction, the end portions 1133 are aligned along the direction perpendicular to the inserting direction, the extending portions 1132 of the two locking keys 113 are respectively provided with mutually facing inclined planes, the two inclined planes are mutually close to each other, the extending portions 1132 are mutually blocked and limited in the combining direction, and the two terminal modules 1 are conveniently installed in the housing 2 as a whole.

As shown in fig. 4 and 5, the first terminal 12 has a first limiting surface 121 that blocks the locking key 113, the second terminal 13 has a second limiting surface 131 that blocks the locking pin 20, the first limiting surface 121 and the second limiting surface 131 are located on different planes to correspond to the locking key 113 and the locking pin 20 that are offset in the arrangement direction, the first terminal 12 is held in position in the insulating body 11 by the blocking of the first limiting surface 121 and the locking key 113, and the second terminal 13 is held in position in the insulating body 11 by the blocking of the second limiting surface 131 and the locking pin 20.

As shown in fig. 3, in the arrangement direction, the outer surface of the insulating body 11 has a notch 118 communicating with the key slot 112 for assisting the combination of the two terminal modules 1 with each other.

As shown in fig. 1 to 2, the housing 2 has a receiving space 21 for receiving two of the terminal modules 1, the receiving space 21 being opened in a direction opposite to the inserting direction for the cables 3 to pass through; the accommodating space 21 is opened along the arrangement direction to form an installation opening 22 for the terminal module 1 to enter. The housing 2 further has a protruding strip 23, and the protruding strip 23 is in the accommodating space 21 and is matched with the gap between the two terminal modules 1, so as to provide guidance for the two terminal modules 1 in the installation process, and fill the gap between the two insulating bodies 11 after the installation is completed, so as to prevent the terminal modules 1 from deflecting.

In other embodiments, the locking key 113 and the key groove 112 integrally formed with the entire terminal module 1 may be applied to the position of the second terminal 13 or other terminals as signal terminals, and may also be applied to the first terminal 12 and the second terminal 13 at the same time, and is not limited to the position of the second terminal 13 as a power terminal.

The electrical connector 1000 of the present utility model has the following advantageous effects:

(1) The two terminal modules 1 are mutually matched by providing the locking key 113 and the key groove 112 on the surfaces facing each other, so that the positions of the first terminals 12 of the other are kept, the first terminals 12 of the two terminal modules 1 are mutually close, and compared with the prior art, the first terminals 12 do not need to be protruded more toward the housing 2 than the second terminals 13, and a part of the terminal modules 1 for accommodating the first terminals 12 are prevented from being protruded outwards, so that the occupied space of the electric connector 1000 is reduced as a whole. In addition, the technical scheme is easy to manufacture and assemble, and is beneficial to reducing the mold development cost of the additional position maintaining piece, the manufacturing material cost and the assembly cost of the position maintaining piece.

(2) The base 1131 has a limiting surface S1 facing the other insulating body 11, and can abut against the other insulating body 11 to limit the locking key 113 from excessively entering the key slot 112, so as to prevent the locking key 113 from pressing and damaging the first terminal 12.

(3) The base portions 1131 of the two locking keys 113 are staggered along the inserting direction, the end portions 1133 are aligned along the direction perpendicular to the inserting direction, the extending portions 1132 of the two locking keys 113 are close to each other, so that the extending portions 1132 are blocked and limited to each other in the combining direction, and the two terminal modules 1 are conveniently installed in the housing 2 as a whole.

(4) The extending portion 1132 has an arc surface S2 near the matched key slot 112, and is matched with the arc-shaped guide angle 1121 of the matched key slot 112, so as to form a smooth transition and increase the contact area, and prevent the locking key 113 from being damaged by stress concentration.

(5) The housing 2 further has a protruding strip 23, and the protruding strip 23 is in the accommodating space 21 and is matched with the gap between the two terminal modules 1, so as to provide guidance for the two terminal modules 1 in the installation process, and fill the gap between the two insulating bodies 11 after the installation is completed, so as to prevent the terminal modules 1 from deflecting.

(6) In the arrangement direction, the outer surface of the insulating body 11 has a notch 118 communicating with the key slot 112, which can slightly increase the opening degree of the key slot 112, thereby being beneficial to the key slot 112 to accommodate the corresponding locking key 113 more smoothly and being capable of assisting the two terminal modules 1 to be mutually combined.

The above detailed description is merely illustrative of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, therefore, all technical equivalents which may be employed in the present specification and illustrations are included in the scope of the utility model.

Claims (10)

1. An electrical connector, comprising:

A housing having a receiving space, two opposite inner surfaces of the housing facing the receiving space each having a locking pin;

the two mutually assembled terminal modules are accommodated in the accommodating space together, each terminal module comprises an insulating body, a first terminal and a second terminal, the insulating body is provided with a first terminal groove for accommodating the first terminal and a second terminal groove for accommodating the second terminal, the surface of each insulating body facing the other insulating body is provided with a sunken key groove and a locking key protruding towards the other insulating body, the key grooves are communicated with the first terminal groove of each insulating body, each locking key protrudes into the first terminal groove through the key groove of the other insulating body, the locking key forms a blocking for the first terminal in the first terminal groove and prevents the first terminal from exiting the first terminal groove, the outer surface of each insulating body faces the locking pin and is concavely provided with a locking groove, the locking groove is communicated with the second terminal groove of each insulating body, each locking pin passes through one of the locking grooves and protrudes into the first terminal groove, the second terminal is prevented from exiting the second terminal groove, and the second terminal is prevented from exiting the second terminal groove.

2. The electrical connector of claim 1, wherein: the locking key is provided with a base part, an extension part connected with the base part and a tail end part connected with the extension part, the tail end part is accommodated in the first terminal groove, the first terminal is inserted into the insulating body along an inserting direction, the base part and the tail end part extend perpendicular to the inserting direction, and the extension part extends obliquely to the inserting direction.

3. The electrical connector of claim 2, wherein: the base parts of the two locking keys are staggered along the inserting direction, the tail end parts are aligned along the direction perpendicular to the inserting direction, and the two extending parts are mutually close.

4. The electrical connector of claim 2, wherein: the base is provided with a limiting surface facing the other insulating body and can be abutted against the other insulating body to limit the locking key from excessively entering the key groove.

5. The electrical connector of claim 2, wherein: one side of the extending part, which is close to the matched key groove, is provided with an arc surface, and the key groove is provided with an arc-shaped guide angle matched with the arc surface.

6. The electrical connector of claim 1, wherein: the first terminals are assembled on the insulating body along an inserting direction, the first terminals are arranged on the insulating body in a row along an arrangement direction, the housing is provided with an installation opening perpendicular to the arrangement direction, the two terminal modules are assembled on the housing along the arrangement direction, the outer surface of the insulating body is provided with a notch communicated with the key groove in the arrangement direction, and the key groove and the locking groove are arranged in a staggered mode in the arrangement direction.

7. The electrical connector of claim 1, wherein: the shell is provided with a convex strip, and the convex strip is arranged in the accommodating space and fills a gap between the two insulating bodies.

8. The electrical connector of claim 1, wherein: the first terminal is a power terminal, the second terminal is a signal terminal, the length of the first terminal is larger than that of the second terminal, the first terminal is provided with a first limiting surface which is blocked by the locking key, the second terminal is provided with a second limiting surface which is blocked by the locking pin, the first limiting surface and the second limiting surface are positioned on different planes, the insulating body is provided with a power supply area which only accommodates the first terminal and a signal area which only accommodates the second terminal, the locking key and the key groove are only arranged in the power supply area, the locking groove is only arranged in the signal area, and the outer surface of the power supply area and the outer surface of the signal area are positioned on the same plane.

9. An electrical connector, comprising:

a housing having an accommodating space;

The two terminal modules facing each other are both accommodated in the accommodating space, each terminal module comprises an insulating body and at least one first terminal, the insulating body is provided with at least one first terminal groove, the first terminal is accommodated in the first terminal groove, the surface of each insulating body facing the other insulating body is provided with a sunken key groove and a locking key protruding towards the other insulating body, the key grooves are communicated with at least one first terminal groove of each insulating body, each locking key protrudes into the first terminal groove through the key groove of the other insulating body, and the locking key blocks the first terminal in the first terminal groove and prevents the first terminal from exiting the first terminal groove.

10. The electrical connector of claim 9, wherein: the locking key is provided with a base part, an extension part connected with the base part and a tail end part connected with the extension part, the tail end part is accommodated in the first terminal groove, the first terminal is inserted into the insulating body along an inserting direction, the base part and the tail end part extend perpendicular to the inserting direction, and the extension part extends obliquely to the inserting direction.