TWI718595B - Electrical connector - Google Patents

Abstract

The present invention keeps the terminal in a proper position with respect to the base body in a manner that does not increase the cost. The electrical connector (1) has: an insulating base body (10) with insertion holes (11) extending in the front and rear direction and opening to the outside at the front and rear ends, and the insertion holes (11) at the front and rear The communicating hole (12) communicating with the outside between the ends, and the front and rear clamping flange portion (23) to hold the sleeve (20) in the clamping portion (15) of the insertion hole (11); the sleeve (20) ), has conductivity, is inserted into the insertion hole (11), and is provided with a flange portion (23) protruding in a direction crossing the front-rear direction, the rear side of which is connected to the conductive portion of the cable (100) and the front side It can be connected with the other side connector; and the insulating lock piece (30) is installed in the communication hole (12) and is engaged with the sleeve (20) inserted in the insertion hole (11).

Description

Electrical connector

The present invention relates to an electrical connector connected to a cable.

In a conventional electrical connector, as a structure for fixing a terminal connected to a cable to a base body, a structure in which a protrusion provided on a terminal connected to the cable is engaged with an engaging hole of the base body is known to be fixed. The electrical connector with such a structure requires the cable to be inserted into the base before connecting the terminal to the cable. Therefore, there are problems in that the manufacturing process becomes complicated, and when the connection between the cable and the terminal is defective, Not only cables and terminals, but also the base body must be discarded, which will increase the cost.

In contrast, Patent Document 1 discloses an electrical connector including: a connector housing 2 having a flexible locking lance 7 for locking a terminal 4 once; and a spacer 6 connected to the terminal The connector is inserted into the socket in the crossing direction, and the terminal is locked twice, and the locking lance 7 and the spacer 6 are locked to the same part of the terminal 4. According to the electrical connector of Patent Document 1, it is not necessary to insert the cable into the base body before connecting the cable and the terminal. Therefore, it is possible to prevent the complication of the manufacturing process, and does not need to be discarded if the connection between the terminal and the cable is defective. Seat body.

【Prior Technical Literature】 【Patent Literature】

[Patent Document 1] Japanese Patent Application Publication No. 2001-076800

However, in Patent Document 1, although the locking lance restricts the rearward movement of the terminal, it does not restrict the forward movement of the terminal. Therefore, it is necessary to additionally provide a restriction other than the locking lance to restrict the forward movement of the terminal on the base. unit. In addition, Patent Document 1 has a problem in that when such a restriction portion is not provided or cannot be provided, the terminal is excessively pressed forward, and the insertion position of the terminal with respect to the base is unreasonable.

The object of the present invention is to provide an electrical connector that can hold the sleeve in a proper position relative to the base without increasing the cost.

The electrical connector of the present invention has: an insulating base body with insertion holes extending in the front-rear direction and the front end and the rear end open to the outside, and the insertion hole communicates with the outside between the front end and the rear end The bushing, which has conductivity, is inserted into the aforementioned insertion hole, the rear side is connected to the conductive part of the cable and the front side can be connected to the counterpart connector; and the insulating retainer, which is installed in The communication hole is engaged with the sleeve inserted in the insertion hole, the sleeve includes a flange portion protruding in a direction crossing the front-rear direction, the seat body includes a clamping portion, and the clamping portion can It is elastically deformed in the intersecting direction and clamps the flange portion back and forth to hold the sleeve in the clamping portion of the insertion hole, and the locking member is provided when the sleeve is inserted into the insertion hole The position where the clamping portion is elastically deformed in the intersecting direction.

By the clamping part of the seat body, the flange part is prevented from moving forward and the flange part is prevented from moving backward. As a result, the sleeve is restricted from moving forward and backward in the proper position of the seat body by the clamping part of the seat body. mobile.

According to the present invention, the sleeve can be kept in a proper position relative to the seat body without increasing the cost.

1‧‧‧Electrical connector

10‧‧‧Block

11‧‧‧Through hole

12‧‧‧Connecting hole

13‧‧‧Installation Department

14‧‧‧Extension Setting

15‧‧‧Clamping part

16‧‧‧Through hole

20‧‧‧Casing

21‧‧‧Rear connection

22‧‧‧Front connection

23‧‧‧Flange

23a‧‧‧Front surface

23b‧‧‧Back surface

24‧‧‧Protrusion

25‧‧‧Protrusion

30‧‧‧Locking piece

31‧‧‧Elasticity

32‧‧‧Main body

33‧‧‧Boss

100‧‧‧Cable

151‧‧‧Front locking part (restriction part)

151a‧‧‧Back surface

152‧‧‧ Rear locking part

152a‧‧‧Front surface

152b‧‧‧inclined surface

311‧‧‧Protrusion

[Figure 1] is a perspective view of an electrical connector according to an embodiment of the present invention.

[Fig. 2] is a cross-sectional view of A-A in Fig. 1.

Fig. 3 is a side view of the base body constituting a part of the electrical connector of the embodiment of the present invention.

[Fig. 4] is a B-B cross-sectional view of Fig. 3.

[Fig. 5] is a cross-sectional view of C-C in Fig. 3.

Fig. 6 is a perspective view of a sleeve constituting a part of the electrical connector of the embodiment of the present invention.

Fig. 7 is a side view of a sleeve constituting a part of the electrical connector of the embodiment of the present invention.

Fig. 8 is a perspective view of a locking member constituting a part of the electrical connector of the embodiment of the present invention.

Fig. 9 is an enlarged cross-sectional view of a part of the electrical connector of the embodiment of the present invention.

Fig. 10 is a cross-sectional view of a further enlarged part of the electrical connector of the embodiment of the present invention.

Hereinafter, with appropriate reference to the drawings, the electrical connector of the embodiment of the present invention will be described in detail. In the figure, the x-axis, y-axis, and z-axis constitute a three-axis orthogonal coordinate system. The positive direction of the y-axis is set to the front direction, the negative direction of the y-axis is set to the rear direction, the x-axis direction is set to the left and right direction, and the z-axis The positive direction of is set to the upward direction, and the negative direction of the z-axis is set to the downward direction for description.

<Structure of electrical connector>

Hereinafter, referring to FIGS. 1 to 10, the structure of the electrical connector 1 of the embodiment of the present invention will be described in detail.

The electrical connector 1 has a base 10, a sleeve 20 and a locking member 30. The electrical connector 1 is, for example, an electrical connector for vehicles.

The base 10 includes an insulating material, and includes an insertion hole 11, a communication hole 12, a mounting portion 13, an extension portion 14, a clamping portion 15, and a through hole 16.

The insertion hole 11 has a cylindrical shape, extends in the front-rear direction, and opens to the outside at the front and rear ends. The insertion holes 11 are provided in the same number as the number of the cables 100 connected to the electrical connector 1.

The communication hole 12 extends in the left-right direction, and the insertion hole 11 is between the front end and the rear end of the insertion hole 11 and communicates with the outside at the mounting portion 13. The communication hole 12 is provided on the side wall of the seat body 10.

The mounting portion 13 is recessed on the side wall of the seat body 10.

The extension portion 14 is provided on the side wall of the seat body 10, extends from the front end of the attachment portion 13 to the rear, and is formed in a cantilever shape. The extension part 14 can be elastically deformed in the left-right direction with the front end as a fulcrum.

The clamping part 15 is provided at the rear end of the extension part 14 and clamps the flange part 23 mentioned later. The clamping portion 15 includes a front locking portion 151 and a rear locking portion 152 as restricting portions.

As shown in FIG. 10, the front locking portion 151 protrudes to the inner side, and includes a rear surface 151 a orthogonal to the front-rear direction and opposed to the front surface 23 a of the flange portion 23.

As shown in FIG. 10, the rear locking portion 152 protrudes to the inner side, and includes a front surface 152a orthogonal to the front-rear direction and an inclined surface 152b that is inclined outward from the front to the rear and intersects the front-rear direction. The rear surface 23b of the flange part 23 is provided so that it may oppose.

As shown in FIG. 5, the through hole 16 extends in the up-down direction, and the communication hole 12 communicates with the outside at the upper surface or the lower surface of the seat body 10.

The sleeve 20 includes a conductive material, has a cylindrical shape, and is inserted into the insertion hole 11. The sleeve 20 connects the unillustrated conductive portion of the cable 100 and the counterpart conductive portion of the counterpart connector (not shown). The sleeve 20 includes a rear connection part 21, a front connection part 22, a flange part 23, a protruding part 24, and a protruding part 25.

The rear connection portion 21 is provided on the rear side of the sleeve 20 and is connected to a conductive portion (not shown) of the cable 100.

The front connecting portion 22 is provided on the front side of the sleeve 20 and can be connected to the counterpart conductive portion of the counterpart connector (not shown). The front end of the front connection portion 22 is located slightly rearward than the front end of the insertion hole 11.

The flange portion 23 protrudes in a direction orthogonal to the front-rear direction (a direction parallel to the x-z plane), and is clamped back and forth by the clamping portion 15. It should be noted that the flange portion 23 is not limited to the case where it is formed to protrude in a direction orthogonal to the front-rear direction, as long as it protrudes in a direction crossing the front-rear direction so as to be clamped by the clamping portion 15.

As shown in FIG. 10, the front surface 23a of the flange portion 23 is opposed to the rear surface 151a of the front locking portion 151 of the clamping portion 15, and the rear surface 23b is opposite to the front surface 152a of the rear locking portion 152 of the clamping portion 15. Opposite.

The protruding portion 24 is provided with a predetermined interval between the rear of the flange portion 23 and the flange portion 23, and protrudes in a direction orthogonal to the front-rear direction. However, it should be noted that the protrusion 24 is not limited to the case where it is formed to protrude in a direction orthogonal to the front-rear direction, as long as it protrudes in a direction crossing the front-rear direction.

The protruding portion 25 is provided with a predetermined interval between the rear of the protruding portion 24 and the protruding portion 24, and protrudes in a direction orthogonal to the front-rear direction. However, it should be noted that the protrusion 25 is not limited to the case where it is formed to protrude in a direction orthogonal to the front-rear direction, as long as it protrudes in a direction crossing the front-rear direction.

The lock piece 30 includes an insulating material, is attached to the communication hole 12, and is engaged with the sleeve 20 inserted into the insertion hole 11. The lock piece 30 includes an elastic portion 31, a main body portion 32 and a boss 33.

The elastic portion 31 extends from the main body portion 32 to the inner side and then extends to be folded back to the outer side, thereby forming a U-shape. The elastic portion 31 is provided in the communication hole 12 and is provided between the protruding portion 24 and the protruding portion 25 as shown in FIG. 2, and holds the sleeve 20 in the insertion hole 11. The elastic portion 31 includes an engaging protrusion 311 that engages with the through hole 16 of the seat body 10. The top end of the elastic portion 31 folded back into a U-shape is exposed to the outside at the mounting portion 13.

The main body portion 32 is plate-shaped and is attached to the mounting portion 13. The main body portion 32 covers the extension portion 14.

The boss 33 protrudes from the upper surface and the lower surface on the front side of the main body portion 32 and is pressed into the inner wall of the mounting portion 13.

<Manufacturing Method of Electrical Connector>

Hereinafter, the manufacturing method of the electrical connector 1 of the embodiment of the present invention will be described in detail.

First, the conductive part of the cable 100 is connected to the rear connection part 21 of the sleeve 20 by means of pressing or the like.

Next, the sleeve 20 to which the cable 100 is connected is inserted into the insertion hole 11 of the base body 10 from the rear with the front connecting portion 22 as the head.

At this time, the inclined surface 152b of the rear locking portion 152 is pressed to the outside by the flange portion 23 of the sleeve 20, whereby the extension portion 14 of the seat body 10 is elastically deformed to the outside. Then, when the flange portion 23 passes the rear locking portion 152, the extension portion 14 is restored to the state before the elastic deformation due to the elastic restoring force of the extension portion 14, and becomes the front locking portion 151 as a restricting portion. And the rear locking portion 152 to sandwich the flange portion 23.

Thus, when the sleeve 20 is to move forward and backward, the front surface 23a of the flange portion 23 abuts against the rear surface 151a of the front locking portion 151 to restrict the forward movement of the sleeve 20, and the flange portion 23 The rear surface 23b abuts on the front surface 152a of the rear locking portion 152 to restrict the movement of the sleeve 20 to the rear. Therefore, the ferrule 20 is held by the base 10 without being excessively pressed forward. Therefore, it is possible to suppress defects in the assembly position with respect to the base 10 and to be stably connected to the counterpart conductive portion of the counterpart connector.

Next, the locking member 30 is mounted on the mounting portion 13 of the base 10, and the elastic portion 31 of the locking member 30 is inserted into the communication hole 12.

At this time, the engaging protrusion 311 is pressed by the inner wall of the communication hole 12, and thereby the elastic portion 31 is elastically deformed. Then, when the engaging protrusion 311 reaches the position of the through hole 16, the engaging protrusion 311 engages with the through hole 16, and the elastic portion 31 returns to the state before the elastic deformation due to the elastic restoring force of the elastic portion 31, and at the same time, the protrusion The table 33 is pressed into the inner wall of the mounting portion 13 of the seat body, and thereby, the lock piece 30 is mounted on the mounting portion 13 of the seat body 10. In addition, the elastic portion 31 protrudes toward the insertion hole 11 and is engaged between the protrusion 24 and the protrusion 25 of the sleeve 20 inserted in the insertion hole 11, whereby the sleeve 20 is fixed by the lock 30于座体10。 In the seat body 10. Thus, the electrical connector 1 is completed.

In the electrical connector 1 manufactured by the above-mentioned manufacturing method, when the cable 100 is to be replaced due to a mistake or damage to the cable 100 to be connected, a lock that exposes the mounting portion 13 of the base body 10 to the outside The tip end of the elastic portion 31 of the piece 30 is elastically deformed toward the main body portion 32 side, thereby releasing the engagement of the engaging protrusion 311 with the through hole 16. Next, in the state where the release has been performed, the locking member 30 is pulled out to the outside, whereby the elastic portion 31 can be pulled out from between the flange portion 23 and the protruding portion 24 of the sleeve 20 and removed from the mounting portion 13 Remove the locking piece 30. As a result, the extension portion 14 is exposed to the outside at the attachment portion 13.

Furthermore, the extension portion 14 is elastically deformed to the outer side, and the state in which the flange portion 23 is clamped by the clamping portion 15 is released. Next, while maintaining this state, the cable 100 is pulled backward and pulled out from the insertion hole 11 to the rear, whereby the cable 100 can be replaced.

As a result, the cable 100 can be easily replaced, so the electrical connector 1 can be reused, and the cost can be reduced. In addition, when the plurality of cables 100 connected to the electrical connector 1 are each used for a different purpose, if the cable 100 is inserted into the wrong insertion hole 11 by mistake, the cable 100 can be easily inserted again. To the correct insertion hole 11.

Thus, according to the present embodiment, the flange portion 23 protruding in the direction intersecting the front-rear direction of the sleeve 20 is clamped back and forth by the clamping portion 15 of the seat body 10, and the sleeve 20 is held on the seat body 10. Therefore, the sleeve 20 can be held in an appropriate position with respect to the seat body 10 without increasing the cost.

In addition, according to the present embodiment, the rear end of the cantilever-shaped extension portion 14 that extends rearward is provided with a clamping portion 15 so that it is connected to the front side of the sleeve 20 by the counterpart connector. In the electrical connector 1 in which the flange portion cannot be formed on the front side of the sleeve 20 due to the structure of the connecting portion, an extension portion extending forward is provided behind the flange portion 23 and formed at the front end of the extension portion Compared with the case of the clamping part which clamps the flange part 23, the whole size can be reduced.

In addition, according to the present embodiment, even the electrical connector 1 having a structure in which the restricting portion for restricting the forward movement of the sleeve 20 cannot be formed on the front side of the inner wall of the insertion hole 11, the clamping portion can be used. 15 to restrict the forward movement of the sleeve 20 in the insertion hole 11.

Of course, the type, arrangement, number, etc. of the components of the present invention are not limited to the foregoing implementation types, and its components can be appropriately replaced with components that have equivalent effects, etc., without departing from the technical spirit of the invention. Change appropriately within the range.

Specifically, although four cables 100 are connected to the electrical connector 1 in the above embodiment, by providing the same number of insertion holes 11 as the number of cables 100 to be connected, it is possible to connect more than four cables. Any number of cables 100.

【Industrial Utilization】

The invention is suitable for electrical connectors connected with cables.

30‧‧‧Locking piece

31‧‧‧Elasticity

32‧‧‧Main body

33‧‧‧Boss

311‧‧‧Protrusion

Claims (4)

An electrical connector having: an insulating base body, including: an insertion hole extending in the front-rear direction and the front end and the rear end open to the outside; and a communication hole so that the insertion hole is located between the front end and the rear end The sleeve is electrically conductive and inserted into the aforementioned insertion hole, the rear side is connected to the conductive part of the cable and the front side can be connected to the counterpart connector; and the insulating lock piece is installed in the aforementioned connection The hole is engaged with the sleeve inserted in the insertion hole. The electrical connector is characterized in that the sleeve has a flange portion that protrudes in a direction crossing the front-rear direction, and the seat body has a front-rear clamp The flange portion holds the sleeve in the clamping portion of the insertion hole, and the locking member is provided so that the clamping portion is elastic in the crossing direction when the sleeve is inserted into the insertion hole. The position of the deformation. The electrical connector described in the first item of the scope of patent application, wherein the base body is provided with a cantilever-shaped extension portion extending rearward, and the clamping portion is provided at the rear end of the extension portion. For example, the electrical connector described in item 1 or 2 of the scope of patent application, wherein the seat body is provided with a mounting portion for mounting the locking member, and the clamping portion is provided at the mounting portion, The locking member is detachably attached to the mounting portion so as to be provided at a position where the elastic deformation occurs. The electrical connector described in claim 1 or 2, wherein the clamping portion includes a restriction portion that restricts the forward movement of the flange portion.

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