TW202008656A - Electric connector which includes a sleeve to be held at an appropriate position with respect to the base - Google Patents

Abstract

The present invention keeps the terminal in an appropriate position with respect to the base without increasing the cost. An electric connector (1) includes an insulating base (10) having insertion holes (11) extending in the front-rear direction and opened to the outside at the front and the rear ends, communicating holes (12) that allows the insertion holes (11) to communicatewith the outside between the front and the rear ends, and a clamping portion (15) that clamps the flange portion (23) back and forth to hold the sleeve (20) in the insertion holes (11); a sleeve(20), which is conductive, and is inserted into the insertion hole (11) and provided with the flange portion (23) that protrudes in a direction crossing the front-rear direction, wherein a rear side of the sleeve (20) is connected to a conductive part of a cable (100), and a front side of the sleeve (20) is connected to a connector at a counterpart side; and an insulating locking member (30) that is installed in the communication hole (12) and engages with the sleeve (20) inserted in the insertion hole (11).

Description

Electrical connector

The 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 at the terminal connected to the cable is engaged with an engagement hole of the base body to fix it is known. An electrical connector having such a structure needs to insert the cable into the base before connecting the terminal to the cable, so there are problems that the manufacturing process becomes complicated, and when the connection between the cable and the terminal is defective, Not only the cables and terminals, but also the seat body will be discarded, which will lead to increased costs.

On the other hand, Patent Document 1 discloses an electrical connector including a connector housing 2 having a flexible locking lance 7 for locking the terminal 4 once, and a spacer 6 from the terminal Insert the connector into the connector body in the cross direction to lock the terminal twice. The locking lance 7 and the spacer 6 lock the same part of the terminal 4. According to the electrical connector of Patent Document 1, there is no need to insert the cable into the base before connecting the cable and the terminal, so it can prevent the complication of the manufacturing process, and there is no need to discard when the connection between the terminal and the cable is defective Seat body.

【Prior Technical Literature】 【Patent Literature】

[Patent Document 1] Japanese Patent Laid-Open No. 2001-076800

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

An object of the present invention is to provide an electrical connector that can hold a sleeve in a proper position relative to a seat body without increasing costs.

The electrical connector of the present invention includes an insulating base body, and includes an insertion hole extending in the front-rear direction and having a front end and a rear end open to the outside, and the insertion hole communicates with the outside between the front end and the rear end The connecting hole of the sleeve; has a conductivity, is inserted through the aforementioned insertion hole, the rear side is connected to the conductive portion of the cable and the front side can be connected to the other side connector; and the insulating locker (retainer) is installed on The communication hole is engaged with the sleeve inserted into the insertion hole, the sleeve includes a flange portion protruding in a direction crossing the front-back direction, the seat body includes a clamping portion, and the clamping portion can Elastically deforming in the intersecting direction and sandwiching the flange portion forward and backward to hold the sleeve in the clamping portion of the insertion hole, the locking member is provided when the sleeve is inserted into the insertion hole The position where the clamping portion elastically deforms in the cross direction.

By the clamping portion of the seat body, the flange portion is prevented from moving forward and the flange portion is prevented from moving backward, whereby the sleeve is restricted by the clamping portion of the seat body in the proper position of the seat body mobile.

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

1‧‧‧Electrical connector

10‧‧‧Body

11‧‧‧Plug through hole

12‧‧‧Connecting hole

13‧‧‧Installation Department

14‧‧‧Extended Setup Department

15‧‧‧Clamping Department

16‧‧‧Through hole

20‧‧‧Casing

21‧‧‧ Rear connection

22‧‧‧Front connection

23‧‧‧Flange

23a‧‧‧Front surface

23b‧‧‧ Rear surface

24‧‧‧Projection

25‧‧‧Projection

30‧‧‧Lock

31‧‧‧Elastic Department

32‧‧‧Main part

33‧‧‧Boss

100‧‧‧Cable

151‧‧‧Front locking part (restriction part)

151a‧‧‧ Rear surface

152‧‧‧ Rear locking part

152a‧‧‧Front surface

152b‧‧‧inclined surface

311‧‧‧ Engagement protrusion

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

[Fig. 2] A-A sectional view of Fig. 1.

[FIG. 3] It is a side view of a seat body that constitutes a part of an electrical connector according to an embodiment of the present invention.

[FIG. 4] It is the B-B sectional view of FIG. 3. [FIG.

[FIG. 5] It is the C-C sectional view of FIG. 3. [FIG.

6 is a perspective view of a ferrule that constitutes a part of an electrical connector according to an embodiment of the present invention.

7 is a side view of a ferrule that constitutes a part of an electrical connector according to an embodiment of the present invention.

[Fig. 8] A perspective view of a locking member constituting a part of an electrical connector according to an embodiment of the present invention.

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

10 is a cross-sectional view of a part of an electrical connector according to an embodiment of the present invention, which is further enlarged.

Hereinafter, the electrical connector according to the embodiment of the present invention will be described in detail with reference to the drawings. In the figure, the x-axis, y-axis, and z-axis form a three-axis orthogonal coordinate system, with the positive direction of the y-axis as the front direction, the negative direction of the y-axis as the rear direction, and the x-axis direction as the left-right direction, 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.

<Structure of electrical connector>

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

The electrical connector 1 has a seat body 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 is cylindrical and extends in the front-rear direction, and the front end and the rear end are open to the outside. The insertion holes 11 are provided in the same number as the number of cables 100 connected to the electrical connector 1.

The communication hole 12 extends in the left-right direction, and allows the insertion hole 11 to communicate with the outside at the mounting portion 13 between the front end and the rear end of the insertion hole 11. 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 rearward from the front end of the attachment portion 13, and is formed in a cantilever shape. The extension portion 14 can be elastically deformed in the left-right direction using the front end as a fulcrum.

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

As shown in FIG. 10, the front locking portion 151 protrudes inward, and includes a rear surface 151 a orthogonal to the front-rear direction and facing 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 has a front surface 152a orthogonal to the front-rear direction and an inclined surface 152b inclined from the front toward the rear and outward and intersecting the front-rear direction. The rear surface 23b of the flange portion 23 is provided so as to face each other.

As shown in FIG. 5, the through-hole 16 extends in the vertical 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, is cylindrical, and is inserted into the insertion hole 11. The ferrule 20 connects a conductive part (not shown) of the cable 100 and a conductive part (not shown) of the counterpart side connector. The sleeve 20 includes a rear connecting portion 21, a front connecting portion 22, a flange portion 23, a protruding portion 24, and a protruding portion 25.

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

The flange portion 23 protrudes in a direction orthogonal to the front-rear direction (direction parallel to the x-z plane), and is held back and forth by the holding portion 15. It should be noted that the flange portion 23 is not limited to a case 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 sandwiched by the gripping portion 15.

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

The protruding portion 24 is provided so as to have 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. It should be noted that the protruding portion 24 is not limited to a case 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 so as to have 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. It should be noted that the protruding portion 25 is not limited to a case 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 30 includes an insulating material, is installed in the communication hole 12, and is engaged with the sleeve 20 inserted through the insertion hole 11. The lock 30 includes an elastic portion 31, a 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 back to the outer side, thereby forming a U-shape. The elastic portion 31 is provided in the communication hole 12 and 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 U-shaped tip end of the elastic portion 31 is exposed to the outside at the mounting portion 13.

The main body portion 32 is plate-shaped and is attached to the attachment portion 13. The main body 32 covers the extension 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 electric connector>

Hereinafter, the manufacturing method of the electrical connector 1 according to 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 pressing or the like.

Next, the sleeve 20 to which the cable 100 is connected is inserted into the insertion hole 11 of the seat body 10 from the rear with the front connection portion 22 as a 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 through the rear locking portion 152, the elastic restoring force of the extension portion 14 restores the extension portion 14 to the state before the elastic deformation, and becomes the front locking portion 151 as the restriction portion And the rear locking portion 152 to sandwich the flange portion 23.

Thus, when the sleeve 20 is to move in the front-back direction, the front surface 23a of the flange portion 23 abuts on 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 and restricts the movement of the sleeve 20 to the rear. Therefore, the ferrule 20 is held by the seat body 10 without being excessively pressed forward, so that the defect in the assembly position with respect to the seat body 10 can be suppressed, and it can be stably connected to the counterpart conductive portion of the counterpart connector.

Next, the lock 30 is attached to the mounting portion 13 of the seat body 10, and the elastic portion 31 of the lock 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, whereby 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 by the elastic restoring force of the elastic portion 31, The table 33 is pressed into the inner wall of the mounting portion 13 of the seat body, whereby the lock 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 protruding portion 24 and the protruding portion 25 of the sleeve 20 inserted through the insertion hole 11, whereby the sleeve 20 is fixed by the locking member 30于座体10。 10 to the seat body. Thus, the electrical connector 1 is completed.

In the electrical connector 1 manufactured by the above-described manufacturing method, when the cable 100 is to be replaced due to the error or damage to the cable 100 to be connected, etc., the lock exposed to the outside from the mounting portion 13 of the seat body 10 is locked The distal end of the elastic portion 31 of the tool 30 is elastically deformed toward the main body portion 32, thereby releasing the engagement of the engagement protrusion 311 and the through hole 16. Next, in the released state, by pulling the lock 30 outward, the elastic portion 31 can be pulled out between the flange portion 23 and the protruding portion 24 of the sleeve 20 to be removed from the mounting portion 13 Remove the lock 30. Thus, the extension portion 14 is exposed to the outside at the mounting portion 13.

Furthermore, the extension portion 14 is elastically deformed to the outside, thereby releasing the clamping portion 15 from clamping the flange portion 23. Next, while maintaining this state, the cable 100 can be replaced by pulling the cable 100 rearward and pulling it backward from the insertion hole 11.

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, in the case where each of the plurality of cables 100 connected to the electrical connector 1 is used for different purposes, when the cable 100 is erroneously inserted into the wrong insertion hole 11, the cable 100 can be easily reinserted于correct insertion hole 11.

In this way, according to the present embodiment, the flange portion 23 protruding in the direction crossing the front-rear direction of the sleeve 20 is clamped back and forth by the clamping portion 15 of the seat body 10 to hold the sleeve 20 on the seat body 10 The insertion hole 11 of FIG. 3 can maintain the sleeve 20 in a proper position relative 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 extending rearward is provided with the clamping portion 15, thereby connecting the connector on the front side of the ferrule 20 with the mating connector Due to the structure of the connection portion, in the electrical connector 1 in which the flange portion cannot be formed on the front side of the sleeve 20, an extension portion extending forward is formed behind the flange portion 23 and formed at the front end of the extension portion Compared with the case of the clamping portion that clamps the flange portion 23, the overall size can be reduced.

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

Of course, the type, arrangement, number, etc. of the members of the present invention are not limited to the aforementioned embodiments, and their constituent elements may be appropriately replaced with those having equivalent effects, without departing from the technical spirit of the invention. Within the scope of the change.

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

【Industrial Utilization】

The invention is applicable to electrical connectors connected with cables.

30‧‧‧Lock

31‧‧‧Elastic Department

32‧‧‧Main part

33‧‧‧Boss

311‧‧‧ Engagement protrusion

Claims (4)

An electrical connector is characterized by having an insulating base body, including: an insertion hole extending in the front-rear direction and having a front end and a rear end open to the outside; and a communication hole such that the insertion hole is located between the front end and the front end The rear end communicates with the outside; the sleeve has conductivity, is inserted into the insertion hole, the rear side is connected to the conductive portion of the cable and the front side can be connected to the counterpart connector; and the insulating locking member, Attached to the communication hole and engaged with the sleeve inserted into the insertion hole, the sleeve includes a flange portion protruding in a direction crossing the front-rear direction, and the seat body includes a front-rear gripping the flange portion In order to hold the sleeve in the clamping portion of the insertion hole, the locking member is provided at a position where the clamping portion is elastically deformed in the crossing direction when the sleeve is inserted in the insertion hole. The electrical connector as described in item 1 of the patent application range, wherein the seat body includes a cantilever-shaped extension portion extending rearward, and the clamping portion is provided at a rear end of the extension portion. The electrical connector as described in item 1 or 2 of the patent application, wherein the base body includes an installation portion for the locking member, the clamping portion is provided in the installation portion, and the locking member is detachably mounted on the The mounting portion is thus provided at a position where the elastic deformation occurs. The electrical connector according to any one of claims 1 to 3, wherein the clamping portion includes a restriction portion that restricts the movement of the flange portion forward.

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