JPH04105471U - 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 lockings, so that the electric contact terminals can be locked securely. An object of the present invention is to provide an electrical connector structure that can improve pullout strength. [Structure] A terminal insertion portion and a bent piece insertion portion 7 connected to the terminal insertion portion are formed, and a groove-shaped portion 8 is formed on the outer surface of the connector body 3.
, the terminal insertion hole 4 is opened in the bottom of the groove 8, the bent piece insertion part 7 is opened in the side surface of the groove 8, and the lance part 10 is provided in the terminal insertion part 4, Insert the contact portion of the electrical contact terminal 12 into the terminal insertion portion, insert the bent piece 14a protruding from this contact portion into the bent piece insertion portion 7, and insert the lance portion 10 into the lance 14b of the electrical contact terminal 12. At the same time, the bent piece 14a is made to protrude from the opening into the groove-like part 8, and the bent piece 14a is bent so that the side edges of the bent piece 14a are engaged with the side surfaces of the groove-like part 8. did.

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. Fit the recess of the terminal (electrical contact terminal) and prevent the outward displacement of the elastic arm. A fixing member is provided to prevent this.

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 purpose, the present invention provides a connector body with a terminal insertion part and a terminal insertion part. A bent piece insertion groove is formed that connects to the terminal insertion part, and a groove-shaped part is formed on the outer surface of the connector body. The terminal insertion hole is opened at the bottom of the groove, and the side of the groove is bent. Open the one-piece insertion part, provide a lance part in the terminal insertion part, and connect the contact part of the electrical contact terminal to the end. Insert the folded piece inserted into the child insertion part and protruded from this contact part into the folded piece insertion groove, While engaging the lance part with the lance of the electrical contact terminal, insert the bent piece into the groove shape from the opening. The bent piece is bent and the side edge of the bent piece is secured to the side face of the grooved part. It is characterized by having

[0007]

[Effect]

With this configuration, the lance of the electrical contact terminal can be engaged with the lance of the socket body. the first locking that locks the side edge of the bent piece to the side surface of the groove-shaped portion; Enables heavy locking, improves the strength of the electrical contact terminal to come off, and ensures prevention of the electrical contact terminal coming off. can be done.

[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. this electrical connector The 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 hole 4 has an opening at the end face 5 thereof. 6 is open. Then, in the upper left corner of the terminal insertion hole 4 in FIG. A slit-shaped insertion groove 7 facing upward is formed. And the connector body 3 A groove-like part 8 is formed on the side surface of the terminal insertion hole 4 in a direction perpendicular to the terminal insertion hole part 4. The terminal insertion hole 4 is opened in the bottom surface 8a of the grooved portion 8, and the side surface 8 of the grooved portion 8 is opened. A slit-shaped insertion groove 7 is opened at b.

[0011] The bottom surface 8a of the groove-shaped portion 8 between adjacent terminal insertion holes 4 is It is formed on the contact surface portion 9 that the bent piece of the electrical contact terminal comes into contact with.

0012 Further, a surface portion 4b of the terminal insertion hole portion 4 corresponding to the surface portion 4a where the opening portion 11 opens. A lance portion 10 is provided.

[0013] 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 a bent piece 1 is placed on the upper left side of the contact part 14. 4a is raised up, and furthermore, there is a cut-and-raised run on the lower surface of the contact portion 14. A slot 14b is provided.

[0014] The connecting portion 15 includes a covering crimping portion 17 having a crimping piece 16 standing up in a U-shape, and a U-shaped It consists of a core wire crimping part 19 having a crimping piece 18 standing upright.

[0015] 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.

[0016] Then, insert the contact part 14 of the electrical contact terminal 12 into the terminal insertion part 4, and 4a into the slit-shaped bent piece insertion portion 7, and insert the end surface 14c of the contact portion 14 into the terminal insertion portion. When pressed against the end surface 4c of the inlet hole 4, the lance portion 10 engages the lance of the electrical contact terminal 12. The bent piece 14a protrudes from the opening 11 into the groove 8.

[0017] This protruding bent piece 14a is bent and brought into contact with the contact surface portion 9. The electric wire 20 is connected to the male connector 1 by locking the side edge of the groove to the side surface 8c of the grooved portion 8. It has been done.

[0018] 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.

[0019] 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.

[0020] According to the above embodiment, in the male connector 1, the lance portion of the socket body 3 10, the lance 14b of the electrical contact terminal 12 is engaged, and the bent piece 14a Double locking with a second locking that locks the side edge of the groove-shaped portion 8 to the side surface of the groove-shaped portion 8 becomes possible. It is possible to improve the strength of the electrical contact terminal to come off and to ensure that it is prevented from coming off.

[0021]

[Effect of the idea]

As explained above, the present invention has a terminal insertion portion and a bent piece connected to the terminal insertion portion. A groove is formed on the outer surface of the connector body, and an end is formed on the bottom of the groove. Open the child insertion hole, open the bent piece insertion part on the side of the groove, and insert the terminal. A lance part is provided in the insertion part, and the contact part of the electrical contact terminal is inserted into the terminal insertion part to make this connection. Insert the bent piece protruding from the contact part into the bent piece insertion groove, and insert the lance part into the electrical contact terminal. At the same time as engaging the lance, the bent piece is made to protrude from the opening into the groove, and this bent piece is I bent the piece and locked the side edge to the side of the groove, so the socket body The lance part has a first lock that locks to the lance of the electrical contact terminal, and the side edge of the bent piece has a groove. This enables double locking with the second lock that locks on the side surface of 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 partially omitted perspective view of the male connector of the same electrical connector structure.

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

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

FIG. 6 is an explanatory diagram of the electric contact terminal before electric wire connection.

FIG. 7 is a side view of the electrical contact terminal.

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

[Explanation of symbols]

3 Connector body 4 Terminal insertion part 7 Bend piece insertion part 8 Groove 10 Lance part 12 Electrical contact terminal 14 Contact part 14a Bend piece 14b Lance

Claims (1)

[Scope of utility model registration request] Claim 1: A terminal insertion portion and a bent piece insertion groove connected to the terminal insertion portion are formed in the connector body, a groove-shaped portion is formed on the outer surface of the connector body, and a terminal is inserted into the bottom surface of the groove-shaped portion. At the same time as opening the hole, a bent piece insertion part is opened on the side surface of the grooved part, a lance part is provided in the terminal insertion part, and the contact part of the electrical contact terminal is inserted into the terminal insertion part and protrudes into this contact part. Insert the provided bent piece into the bent piece insertion groove, engage the lance with the lance of the electrical contact terminal, project the bent piece from the opening into the groove, and fold the bent piece. An electrical connector structure characterized in that the side edges of the electrical connector are bent and locked to the side surfaces of a groove-shaped part.