JPH04105473U - electrical connector structure - Google Patents

Abstract

(57) [Summary] (with amendments) [Purpose] To enable double locking of electric contact terminals to the connector body, and to ensure these locks, so that the electric contact terminals can be It is an object of the present invention to provide an electrical connector structure that can improve pullout strength. [Structure] A locking member fitting recess is formed on the periphery of the connector body in which the terminal insertion hole is formed, each terminal insertion portion is opened in the locking member fitting recess, and a lance is attached to the surface of the terminal insertion hole. The contact portion 14 of the electrical contact terminal 12 is inserted into the terminal insertion portion, the lance portion 10 is engaged with the lance 14b of the electrical contact terminal 12, and the locking member 24 is fitted into the locking member fitting recess. In addition, the locking protrusion 26 of the locking member 24 is inserted and locked between the contact portion 14 and the covering portion and between the covering portion and the core wire crimping portion of the electrical contact terminal 12.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention relates to an electrical connector structure with a double lock.

0002

[Conventional technology]

A conventional electrical connector structure of this type is disclosed in Japanese Unexamined Patent Publication No. 1-213973, etc. Disclosed.

0003 This disclosed technology accommodates the protrusion of the elastic arm that protrudes into the passage of the housing within the passage. The elastic arms are fitted in the recesses of the terminals and fixed to prevent outward displacement of the elastic arms. A fixed member is provided.

0004

[Problem that the idea aims to solve]

However, in the conventional example, the terminal is locked at only one place, and the terminal is locked at only one place. Since it is not a bull lock, if the fixing member comes off, the terminal will not be locked. It becomes stable and ensures that the terminal locks into the housing. The problem was that it couldn't be done.

[0005] The present invention solves the above problems, and the connector body of the electrical contact terminal Double locking is now possible, and these lockings are made secure, Provides an electrical connector structure that can improve the pull-out strength of electrical contact terminals. The purpose is to

[0006]

[Means to solve the problem]

In order to achieve the above object, the present invention has developed a connector book having a terminal insertion hole. A locking member fitting recess is formed around the body, and each terminal insertion portion is inserted into this locking member fitting recess. A lance part is provided on the surface of the terminal insertion hole, and the contact part of the electrical contact terminal is inserted into the terminal. Insert into the insertion section and engage the lance part with the lance of the electrical contact terminal to lock the locking member. Fit the member into the fitting recess and insert the locking protrusion of this locking member into the recess of the electrical contact terminal. It is characterized by being locked.

[0007]

[Effect]

With this configuration, the lance of the electrical contact terminal is locked to the lance part of the socket body. electrical connection of the locking protrusion by fitting the locking member into the locking member fitting recess; Double locking with the second locking, which locks the contact terminal into the recess, is possible, making electrical connection possible. It is possible to improve the strength of the contact terminal and ensure that it is prevented from coming off.

[0008]

【Example】

Hereinafter, the present invention will be explained based on the drawings.

[0009] FIG. 1 is a longitudinal sectional view of an electrical connector structure according to the present invention. electrical connector structure consists of a male connector 1 and a female connector 2.

0010 The male connector 1 includes a block-shaped connector body 3 made of an insulator. , a plurality of terminal insertion holes 4 are provided on the front side of the connector body 3 on the left and right sides in FIG. The terminal insertion holes 4 are provided at predetermined intervals in the direction, and the end face 5 of the terminal insertion hole 4 has an opening. Part 6 is open. A locking member fitting recess 7 is provided on the periphery of the connector body 3. Each terminal insertion portion 4 is opened in this locking member fitting recess 7 . Further, the surface portion 4b of the terminal insertion hole portion 4 corresponding to the surface portion 4a where the opening portion 11 opens is A lance portion 10 is provided.

[0011] 12 is an electrical contact terminal. This electrical contact terminal 12 has a contact portion as shown in FIG. 14, and a connecting portion 15 continuous to the rear of the contact portion 14. has a structure in which two contact pieces 13 are combined, and the lower surface of the contact part 14 is cut and raised. A lance 14b is provided. The connection part 15 has a crimping piece 16 that stands up in a U-shape. and a core wire crimping part 1 having a crimping piece 18 standing upright in a U-shape. Consists of 9.

0012 Then, the core wire 21 of the electric wire 20 is crimped with the crimp piece 18 of the core wire crimping part 19. The covering parts 22 are crimped with the crimping pieces 16 of the covering crimping part 17 to make electrical contact with the electric wire 20. Terminal 12 is connected.

[0013] The locking member 24 is shown in FIG. This locking member 24 is a locking piece 2 having a U-shape in plan view. 5 are used and connected to each other with a hinge 26 at one end of these locking pieces 25. It is.

[0014] A locking protrusion 26 is formed along the longitudinal direction on the top and bottom of the inner surface of the main portion 25a of the locking piece 25. In addition, a hook 27a is provided on the opposing end surface of the other end of the locking piece 25. A hook receiving portion 27b with which the hook 27a engages is provided.

[0015] Then, insert the contact portion 14 of the electrical contact terminal 12 into the terminal insertion portion 4, and When the end face 14c of the terminal insertion hole 4 is pressed against the end face 5 of the terminal insertion hole 4, the lance part 10 It engages with the lance 14b of the gas contact terminal 12.

[0016] In this state, the locking piece 25 of the locking member 24 is fitted into the locking member fitting recess 7 to lock the locking member. The hook 27a is engaged with the hook receiving portion 27b to connect both the locking pieces 25 to each other. This person By attaching the locking member 24, the locking protrusion 26 of the locking member 24 is attached to the contact portion 1 of the electrical contact terminal 12. 4 and the core wire crimping part 19 and the core wire crimping part 19 and the covering crimping part 17. The electric wire 20 is inserted and locked into the recess 41 between the male connector 1 and connected to the male connector 1.

[0017] The female connector 2 is equipped with a connector body 28 made of an insulator. The main body 28 is provided with a fitting part 29, and a terminal on a bottom part 30 of the fitting part 29 is provided. A terminal 32 is attached to the attachment part 31, and the terminal 32 protrudes into the fitting part 29. . An electric wire 33 is connected to this terminal 32.

[0018] Therefore, when the male connector 1 is inserted and fitted into the fitting part 29 of the female connector 2, , a terminal 32 is inserted into the contact portion 14 of the electrical contact terminal 12, and this terminal 32 becomes a contact piece. 13 and continuity is established.

[0019] According to the above embodiment, in the male connector 1, the lance portion of the socket body 3 10, a first lock in which the lance 14b of the electrical contact terminal 12 locks, and a locking member 24. Contact of the electrical contact terminal 12 with the locking protrusion 26 by fitting into the locking member fitting recess 7 The recess 40 between the part 14 and the core wire crimping part 19 and the core wire crimping part 19 and the covering crimp part 1 Double locking with the second locking which is insertion locking into the recess 41 between 7 and 7 becomes possible, It is possible to improve the strength of the electrical contact terminal 12 to come off, and to ensure that the electrical contact terminal 12 is prevented from coming off.

[0020]

[Effect of the idea]

As explained above, the present invention is designed to improve the connection between the peripheral part of the connector body and the A locking member fitting recess is formed in the locking member fitting recess, and each terminal insertion portion is opened in this locking member fitting recess. , a lance part is provided on the surface of the terminal insertion hole, and the contact part of the electrical contact terminal is inserted into the terminal insertion part. Insert the lance part to engage the lance of the electrical contact terminal, and fit the locking member to the locking member. The locking protrusion of this locking member is inserted into the recess of the electrical contact terminal and locked. so that the lance of the electrical contact terminal is locked to the lance part of the socket body. and the locking protrusion of the locking member by fitting into the locking member fitting recess of the electric contact terminal. Double locking is possible with the second locking that is inserted into the recess, and the electrical contact terminal The pull-out strength can be improved and pull-out prevention can be ensured.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view of an electrical connector structure according to the present invention.

FIG. 2 is a sectional view showing the electrical connector structure before connection.

FIG. 3 is a longitudinal sectional view of a male connector of the same electrical connector structure.

FIG. 4 is an exploded explanatory view of the male connector.

FIG. 5 is a perspective view of the connector main body of the male connector.

FIG. 6 is a perspective view of the locking member.

FIG. 7 is an explanatory diagram of the electric contact terminal before electric wire connection.

FIG. 8 is a side view of the electrical contact terminal.

[Explanation of symbols]

3 Connector body 4 Fitting recess 7 Locking member fitting recess 10 Lance part 14b Lance 12 Electrical contact terminal 24 Locking member 26 Locking recess 40 recess 41 Recess

Claims (1)

[Scope of utility model registration request] Claim 1: A locking member fitting recess is formed in the periphery of the connector body in which the terminal insertion hole is formed, each terminal insertion portion is opened in the locking member fitting recess, and the surface of the terminal insertion hole is opened. A lance part is provided in the electrical contact terminal, the contact part of the electrical contact terminal is inserted into the terminal insertion part, the lance part is engaged with the lance of the electrical contact terminal, and the locking member is fitted into the locking member fitting recess. An electrical connector structure characterized in that a locking protrusion of a locking member is inserted and locked into a recess of an electrical contact terminal.