TWM508134U - Electrical connector - Google Patents

Description

Electrical connector

The present invention relates to an electrical connector, and more particularly to an electrical connector having a structure that has both a locking and a foolproof function.

There is an electrical connector with a foolproof function, such as the one disclosed in Taiwan Patent No. M480183 (China Mainland Correspondence CN201320710988), the conductive terminal of the electrical connector is provided with at least one convex body, and the convex body is convex in a sheet shape. . The insulating body of the electrical connector is provided with a terminal hole corresponding to the conductive terminal, and a groove corresponding to the receiving convex body is disposed on the inner wall surface defining the terminal hole. When the conductive terminal is assembled in the terminal hole, if the conductive terminal is not correctly inserted into the terminal hole, the convex portion of the conductive terminal cannot enter the groove of the terminal hole. Thereby, the conductive terminal is prevented from being incorrectly assembled to the insulating body, and the anti-staying effect is achieved.

However, as the size of the conductive terminals is increasingly miniaturized, the sheet-like projections become thinner and thinner, making the structural strength weaker. When the conductive terminals are mis-inserted, the convex body is easily bent and damaged due to the collision, so that the conductive terminals can no longer be used.

Accordingly, it is an object of the present invention to provide an electrical connector having a structure having a foolproof function, and the terminals of the electrical connector are not easily damaged in the case of incorrect assembly.

One of the objects of the present invention is to provide an electrical connector having a locking function while providing a foolproof function.

Thus, in some embodiments, the electrical connector of the present invention comprises: an insulative housing and a plurality of terminals. The insulating case has a plurality of terminal slots penetrating the insulating case in a front-rear direction, and each of the terminal slots is provided with a protrusion protruding from an inner wall surface defining the terminal groove. The bump has a rear stop. The terminals are respectively disposed in the terminal slots, and each terminal has a bottom wall and two side walls extending along the front and rear direction. The two side walls are respectively opposite to each other and spaced apart from each other and are respectively connected to the two sides of the bottom wall and define an insertion space together with the bottom wall, and the bottom wall and the two side walls of the terminal respectively have a front end edge. Wherein, the bumps in each of the terminal slots protrude from the inner wall surface of the bottom wall facing the corresponding terminal toward the bottom wall. The rear stop portion of each of the bumps is configured to be capable of abutting the front end edge of one of the bottom wall and the two side walls of the terminal if the terminal is not in the correct assembly position when the terminal is assembled To stop the terminal from being placed in the terminal slot.

In some embodiments, each of the bumps further has a front stop portion on the opposite sides of the rear stop portion in the front-rear direction, and each of the terminals further has two rear side walls respectively And positioning the elastic pieces extending close to each other, and the ends of the two positioning elastic pieces of the terminal face the front stop portions of the corresponding protrusions.

In some implementations, each bump also has one and the latter Each of the terminals further has a front stop portion on opposite sides of the front and rear direction, and each of the terminals further has a positioning elastic piece extending from the bottom wall and extending into the insertion space, and the positioning elastic piece of the terminal The end faces the front stop of the bump.

In some embodiments, the front end edges of the two side walls of each terminal are connected to the front end edge of the bottom wall.

In some embodiments, the front end edges of the two side walls of each terminal are coplanar with the front end edge of the bottom wall.

In some embodiments, the bottom wall of each terminal is joined to the front end edges of the two side walls to form a U-shaped structure.

In some embodiments, the front end edge of each side wall of each terminal is joined to the front end edge of the bottom wall to form an L-shaped structure.

In some embodiments, the bottom wall of each terminal has a gap extending rearwardly from the front end edge in the front-rear direction, and the bottom wall is divided into two symmetrical wall portions.

In some embodiments, the two side walls of each terminal further have a top edge away from the bottom wall, and a bevel edge connecting the top edge and the front end edge thereof to form a truncated angle.

In some embodiments, each terminal also has a junction at the trailing end to connect a wire.

The utility model has the advantages that the bump can block the terminal from entering the terminal slot when the terminal is not properly assembled, and has the foolproof function. Moreover, compared with the single sheet structure, the bottom wall of the terminal and the front end edge of the side wall have a U-shaped or L-shaped structure, which can have better structural strength, so that the front end of the bottom wall and the side wall When the edge and the bump hit, it is not easy to bend and damage, so as to ensure that the terminal can be properly inserted and then reassembled after being mistakenly inserted. Moreover, the bump can also cooperate with the positioning elastic piece to have a locking function to limit the terminal.

100‧‧‧Electrical connector

1‧‧‧Insulated shell

11‧‧‧Terminal slot

12‧‧‧Bumps

121‧‧‧Front stop

122‧‧‧ Rear stop

2‧‧‧ terminals

21‧‧‧ bottom wall

211‧‧‧ gap

212‧‧‧ wall

22‧‧‧ side wall

221‧‧‧ top edge

222‧‧‧ oblique side

23‧‧‧Interposed space

24‧‧‧ Positioning shrapnel

25‧‧‧ joints

201, 202‧‧‧ front edge

D‧‧‧ front and rear direction

The other features and advantages of the present invention will be apparent from the detailed description of the embodiments of the drawings. FIG. 1 is an exploded perspective view showing a first embodiment of the present invention. FIG. FIG. 3 is a perspective view showing the positional relationship between the bump of the insulating case and the terminal groove of the first embodiment; FIG. 4 is another angle view of FIG. 3; A front view of the positional relationship between the bump and the terminal slot of the first embodiment; FIG. 6 is a front view showing the terminal of the first embodiment in the terminal slot and its interaction with the bump; FIG. 1 is a side view illustrating the first embodiment; FIG. 8 is a cross-sectional view taken along line VIII-VIII of FIG. 7, illustrating the action of the positioning spring of the terminal of the first embodiment and the bump; FIG. A partial front view illustrating the state in which the terminal is in the correct position when the terminal is assembled in the terminal slot in the first embodiment; FIG. 10 is a partial front view showing the terminal in the first embodiment when the terminal is assembled in the terminal slot Incorrect position state; Figure 11 is a partial Front view illustrating the assembly of the terminal in the first embodiment In the terminal slot, the terminal is in another incorrect position; FIG. 12 is an exploded perspective view showing the second embodiment of the novel electrical connector; FIG. 13 is another angle view of FIG. 12; A perspective view showing a positional relationship between a bump of an insulating case and a terminal slot of the second embodiment; FIG. 15 is another perspective view of FIG. 14; and FIG. 16 is a front view showing the terminal of the second embodiment. In the terminal groove and its action relationship with the bump; and FIG. 17 is a cross-sectional view taken along the line XVII-XVII in FIG. 16, illustrating the action relationship between the positioning spring of the terminal of the second embodiment and the bump.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same reference numerals.

Referring to FIGS. 1 through 4, a first embodiment of the present electrical connector 100 includes an insulative housing 1 and a plurality of terminals 2.

The insulating case 1 has a plurality of terminal slots 11 extending through the insulating case 1 in a front-back direction D, and each of the terminal slots 11 is provided with a bump 12 protruding from an inner wall surface defining the terminal slot 11, the bump 12 has a front stop portion 121 and a rear stop portion 122 which are respectively located on opposite sides in the front-rear direction D.

The terminals 2 are respectively disposed in the terminal slots 11, and each of the terminals 2 has a bottom wall 21 and two side walls 22 extending in the front-rear direction D. The two side walls 22 are respectively connected to each other and spaced apart from each other. Bottom wall The two sides of the 21 and the bottom wall 21 define an insertion space 23, and the bottom wall 21 and the two side walls 22 of the terminal 2 respectively have a front end edge 201, 202, and the front end edge 202 of the two side walls 22 and the bottom The front end edges 201 of the walls 21 are connected and coplanar. In the present embodiment, the bottom wall 21 of each terminal 2 has a gap 211 extending rearwardly from the front end edge 201 in the front-rear direction D, and the bottom wall 21 is divided into two symmetrical wall portions 212. Each wall portion 212 and the side wall 22 connected thereto form a resilient arm, that is, the two side walls 22 and the bottom wall 21 together form two elastic arms arranged side by side for contact with a mating terminal (not shown). Furthermore, the two side walls 22 of each terminal 2 respectively have a top edge 221 away from the bottom wall 21, and a beveled edge 222 connecting the top edge 221 and the front end edge 202 to form a truncated angle, thereby reducing the two The area occupied by the front end edge 202 of the side wall 22 at the entrance of the terminal slot 11 allows the mating terminal to have a large insertion space at the entrance when the front side of the insulating case 1 enters the terminal slot 11, thereby making the mating terminal easy to be inserted into the terminal slot. Further, the insertion space 23 that can enter the terminal 2 is in contact with the terminal 2.

Each terminal 2 also has two sides respectively from the two side walls 22 The positioning elastic pieces 24 extending close to each other and a joint portion 25 at the rear end are connected to a wire (not shown). Referring to FIGS. 5-8, when the terminal 2 is assembled in the insulating case 1, the bumps 12 in each of the terminal slots 11 are protruded from the inner wall surface of the bottom wall 21 facing the corresponding terminal 2 toward the bottom wall 21 and are located there. Between the two side walls 22, the ends of the two positioning elastic pieces 24 of the terminal 2 face the front stop portion 121 of the bump 12, thereby preventing the terminal 2 from moving backward to come out of the terminal groove 11. In other words, the terminal 2 is locked in position by the bumps 12.

The terminal 2 is assembled to the insulating case 1 by the rear side of the insulating case 1 Place the terminal 2 into the terminal slot 11. Referring to FIG. 9, when the terminal 2 is placed in the correct position, the front end edges 201, 202 of the terminal 2 can smoothly pass through the bump 12 without being blocked by the bump 12, and when the terminal 2 advances in the terminal slot 11, the terminal 2 When the two positioning springs 24 (see FIG. 8) encounter the bumps 12, they will be spread by the bumps 12 to the two sides. After the bumps 12 are passed, the positioning elastic pieces 24 return to the original position and are relatively retracted, that is, when the terminal 2 is retracted. The front stopper portion 121 (see FIG. 8) is abutted against the projection 12, thereby preventing the terminal 2 from moving backward to come out of the terminal groove 11.

Referring to FIG. 4, FIG. 10 and FIG. 11, the back of the bump 12 is stopped. The blocking portion 122 is configured to be opposite to the front end edge 201, 202 of one of the bottom wall 21 and the two side walls 22 of the terminal 2 if the terminal 2 is not in the correct assembly position during assembly. The terminal 2 is placed in the terminal slot 11 to stop. As shown in FIG. 10, the terminal 2 is rotated 90 degrees with respect to the correct position and placed in the terminal slot 11 at an incorrect position, and the front end edge 202 of one of the side walls 22 abuts against the rear stop of the projection 12. 122 is blocked by the bump 12 and can no longer advance. Similarly, as shown in FIG. 11, when the terminal 2 is rotated 180 degrees with respect to the correct position and is placed into the terminal slot 11 at an incorrect position, the front end edge 201 of the bottom wall 21 will abut against the bump 12. The rear stopper portion 122 is blocked by the projection 12 and cannot be advanced. In this way, the terminal 2 can be prevented from being assembled by mistake, and the foolproof effect can be achieved. In addition, since the bottom wall 21 of the terminal 2 is connected to the front end edges 201, 202 of the two side walls 22 to form a U-shaped structure, or the front end edge 202 of each side wall 22 is connected with the front end edge 201 of the bottom wall 21 to form an L-shaped structure. Compared with the single sheet structure, the U-shaped or L-shaped structure can have better structural strength, so that the front end edges 201, 202 of the bottom wall 21 and the side wall 22 are not easily bent and damaged when they collide with the bumps 12, so that Make sure that terminal 2 is properly inserted and re-assembled after being misinserted.

Referring to Figures 12 to 17, the second of the novel electrical connector 100 The embodiment is substantially the same as the first embodiment. However, in the second embodiment, each terminal 2 has a positioning elastic piece 24, and the positioning elastic piece 24 extends rearward from the bottom wall 21 and extends into the insertion space. The function of the positioning elastic piece 24 is the same as that of the first embodiment, and is used to abut the front stop portion 121 (see FIG. 14) of the bump 12 when the terminal 2 is retracted, thereby preventing the terminal 2 from moving backward. The terminal slot 11 is output. The assembly method of the terminal 2, the foolproof function, and the achievable effects are the same as those of the first embodiment, and will not be repeated here.

In summary, the aforementioned bumps 12 can be assembled abnormally at the terminal 2. When the blocking terminal 2 enters the terminal slot 11, it has a foolproof function. Moreover, compared with the single sheet structure, the bottom wall 21 of the terminal 2 and the front end edges 201, 202 of the side wall 22 have a U-shaped or L-shaped structure, which can have better structural strength, so that the bottom wall 21 and the side wall 22 are When the front end edges 201 and 202 collide with the bumps 12, they are not easily bent and damaged, so as to ensure that the terminal 2 can be properly inserted and then reassembled after being mistakenly inserted. Moreover, the aforementioned bump 12 can also cooperate with the positioning elastic piece 24 to have a locking function to limit the terminal 2.

However, the above is only an embodiment of the present invention, when The scope of the novel implementation is not limited thereto, that is, the simple equivalent changes and modifications made by the present invention in the scope of the patent application and the contents of the patent specification are still within the scope of the present patent.

1‧‧‧Insulated shell

11‧‧‧Terminal slot

12‧‧‧Bumps

121‧‧‧Front stop

122‧‧‧ Rear stop

2‧‧‧ terminals

21‧‧‧ bottom wall

211‧‧‧ gap

212‧‧‧ wall

22‧‧‧ side wall

23‧‧‧Interposed space

24‧‧‧ Positioning shrapnel

25‧‧‧ joints

D‧‧‧ front and rear direction

Claims (10)

An electrical connector comprising: an insulating housing having a plurality of terminal slots extending through the insulating housing in a front-rear direction, and each of the terminal slots is provided with a bump protruding from an inner wall surface defining the terminal slot, The bump has a rear stop portion; and a plurality of terminals respectively disposed in the terminal slots, and each terminal has a bottom wall and two side walls extending in the front-rear direction, the two side walls are opposite to each other and spaced apart from each other Connected to the two sides of the bottom wall and define an insertion space together with the bottom wall, and the bottom wall and the two side walls of the terminal respectively have a front end edge; wherein the bumps in each terminal slot are facing The inner wall surface of the bottom wall of the corresponding terminal protrudes toward the bottom wall; wherein the rear stop portion of each of the protrusions is configured to be able to be offset when the terminal is assembled, if the terminal is not in the correct assembly position A front end edge of one of the bottom wall and the two side walls of the terminal is inserted into the terminal slot to stop the terminal. The electrical connector of claim 1, wherein each of the bumps further has a front stop portion on the opposite sides of the rear stop portion in the front-rear direction, and each of the terminals further has two The positioning elastic pieces of the two side walls extend rearward and adjacent to each other, and the ends of the two positioning elastic pieces of the terminal face the front stop portions of the corresponding protrusions. The electrical connector of claim 1, wherein each of the bumps further has a front stop portion on the opposite sides of the rear stop portion in the front-rear direction, and each terminal further has a bottom portion The wall extends rearward and extends into the insertion Positioning the elastic piece of the space, and the end of the positioning elastic piece of the terminal faces the front stop portion of the convex piece. The electrical connector of any one of claims 1 to 3, wherein a front end edge of the two side walls of each terminal is connected to a front end edge of the bottom wall. The electrical connector of claim 4, wherein a front end edge of the two side walls of each terminal is coplanar with a front end edge of the bottom wall. The electrical connector of any one of claims 1 to 3, wherein the bottom wall of each of the terminals is connected to the front end edges of the two side walls to form a U-shaped structure. The electrical connector according to any one of claims 1 to 3, wherein a front end edge of each side wall of each terminal is connected to a front end edge of the bottom wall to form an L-shaped structure. The electrical connector of claim 1, wherein the bottom wall of each of the terminals has a gap extending rearwardly from the front end edge in the front-rear direction, and the bottom wall is divided into two symmetrical wall portions. The electrical connector of claim 1, wherein the two side walls of each terminal further have a top edge away from the bottom wall, and a bevel edge connecting the top edge and the front end edge thereof to form a truncated angle. The electrical connector of claim 1 wherein each terminal further has a junction at the trailing end for connecting a wire.