JPH065142U - connector - Google Patents

Abstract

(57) [Summary] [Purpose] To securely fix the terminal to the connector housing. [Structure] On a side surface of the terminal 12, a fixing projection 12d locked to a side wall 1e in the slit 1a of the housing 1.
Is formed so that the fixing projection 12d pushes the side wall 1e laterally.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a connector, and more specifically, to a connector for connecting a flat cable or a ribbon electric wire to a fork-shaped terminal so that the fork-shaped terminal can be securely fixed to the connector housing.

[0002]

[Prior art]

 As shown in FIG. 4, a housing 1 of a connector for connecting a flat electric wire such as a flat cable or a ribbon electric wire to a fork-shaped terminal is formed of a synthetic resin into a rectangular shape. A large number of slits 1a into which the manufactured terminal 2 (see FIGS. 5 and 6) is fitted and fixed are formed at a constant pitch P in the left-right width direction. Incidentally, in the housing 1 of FIG. 4, the pitch P is 0.8 mm and 20 slits 1a are formed while the width W1 is 15.2 mm.

A conventional fork-shaped terminal 2 fitted and fixed in each slit 1a of the housing 1 has a contact piece 2a and a press-fit piece 2b formed on one side, as shown in FIGS. 5 and 6. A lead piece 2c is formed on the other side, and an upward fixing protrusion 2d is formed on the upper edge of the contact piece 2b. In addition, for flat wire connection, the lower part of the contact portion 2e of the contact piece 2a is projected laterally, and the contact portion 2e has a large plate thickness.

In the connector housing 1 for connecting the flat electric wire, on the terminal insertion side, it is necessary to make the width of the slit large at the portion where the contact portion 2e having a large plate thickness is inserted. It is necessary to thin the side wall between them. However, it is difficult to mold such a thin side wall due to the relationship of the mold pins during molding. Therefore, the side wall can be provided at the portion where the press-fitting portion 2b is inserted, but the side wall cannot be provided at the portion where the contact point portion 2e is inserted, so that the upper wall 1b is provided between the adjacent slits 1a. It is not possible to form the side wall connecting the lower wall 1c with the side wall. On the other hand, on the wire insertion side, since it is a flat wire, it is not possible to provide a side wall connecting the upper wall 1b and the lower wall 1c between the adjacent slits 1a. As a result, between the side wall 1d on the side of the upper wall 1b of the housing 1 and the side wall 1e on the side of the lower wall 1c, there is a penetrating in the left-right width direction at the portion where the terminal contact portion 2e and the flat electric wire are inserted. The hole 1f is formed, and the upper wall 1b and the lower wall 1c are connected only at the left and right end portions 1g, 1g, and the middle portion is not connected.

Generally, as shown in FIG. 6, each slit 1a of the housing 1 has a contact piece groove 1h formed on the upper wall 1b side and a press-fit piece groove 1i formed on the lower wall 1c side. When the terminal 2 is fitted in 1a, the contact piece 2a is fitted in the contact piece groove 1h, the press-fitting piece 2b is fitted in the press-fitting piece groove 1i, and the fixing projection 2d of the contact piece 2a is locked to the lower surface of the upper wall 1b. The terminal 2 is fixed in the slit 1a.

[0006]

[Problems to be solved by the device]

 When the terminals 2 are fitted and fixed in the slits 1a of the multipole type housing 1 as described above, the fixing projections 2d of the terminals 2 push the upper wall 1b upward and the lower wall 1c downward. Becomes Since the upper wall 1b and the lower wall 1c are not connected to each other by the through holes 1f at the intermediate portions except the left and right end portions 1g and 1g, the upper wall 1b and the lower wall 1c are warped upward and downward, respectively, and thus the fixing projections of the terminal 2 are provided. 2d separates from the lower surface of the upper wall 1b, which causes a problem that each terminal 2 cannot be fixed in the slit 1a.

The present invention has been made to solve the above problems, and an object of the present invention is to securely fix a terminal to a housing of a connector.

[0008]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention is a connector for fixing a fork-shaped terminal having a contact piece and a press-fitting piece by fitting them into a contact piece groove and a press-fitting piece groove in a slit formed in a housing, respectively. In the above aspect, a fixing projection that is locked to the side wall of the slit of the housing is integrally formed on the side surface of the terminal.

Specifically, the connector is for connecting the terminal to the flat electric wire, and the upper and lower walls of the connector housing are connected only at the left and right end walls, and the middle portion is provided in the left and right directions. A through hole is provided, and the fixing projection is provided on the side surface of the press-fitting piece so that the fixing projection is locked to the side wall portion of the press-fitting groove that is provided so as to project from the lower wall side.

[0010]

[Action]

 According to the present invention, a fixing protrusion to be locked to a side wall in a slit of a housing is formed on a side surface of a terminal such as a side surface of a press-fitting piece, not on an upper edge portion of a contact piece of the terminal as in the past. Therefore, when the terminal is fitted into each slit of the housing and fixed, the fixing projection of each terminal pushes the side wall to the side, and the terminal fixing projection does not separate from the side surface of the side wall. Can be securely fixed in the slit.

[0011]

【Example】

 Hereinafter, the present invention will be described in detail with reference to illustrated embodiments. The same parts as those in the configuration shown in FIG. 4 and subsequent figures will be designated by the same reference numerals and the description thereof will be omitted. As shown in FIG. 3, the fork-shaped terminal 12 has a contact piece 12a and a press-fitting piece 12b formed on one side, and a lead piece 12c formed on the other side. On the side surface of the press-fitting piece 12b on the base side, a fixing projection 12d is integrally formed laterally and punched out in a substantially square shape (see FIG. 2A). In addition, as shown in FIG. 2B, an arc-shaped fixing projection 12d may be used. Further, the contact portion 12e provided at the tip of the contact piece 12a is bent outward at the lower side to widen the width thereof, thereby increasing the contact area.

On the other hand, as shown in FIG. 1, in the housing 1 made of synthetic resin, a contact piece groove 1h and a press-fit piece groove 1i are formed in each slit 1a. Since the upper wall 1b and the lower wall 1c are provided with the widened contact portions 12e at the tips of the contact pieces 12a, the through hole 1f penetrates in the width direction, and the side walls 1d not connected in the vertical direction, 1e are provided respectively.

When the terminal 12 is fitted into each slit 1a of the housing 1, the contact piece 12a of the terminal 12 is fitted into the contact piece groove 1h, and the press-fitting piece 12b is fitted into the press-fitting piece groove 1i.

Then, the fixing projection 12d formed on the side surface of the press-fitting piece 12b of the terminal 12 on the base side is locked to the side surface of the side wall 1e of the lower wall 1c of the terminal 12, and the terminal 12 is inserted into the slit 1a. It will be fixed.

In the above conventional structure, since the fixing projection 2d is locked to the upper edge of the contact piece 2a of the terminal 2, the fixing projection 2d moves the upper wall 1b of the housing 1 upward and the lower wall 1c. Then, the upper wall 1b and the lower wall 1c warp, the fixing projection 2d separates from the lower surface of the upper wall 1b, and the terminal 2 cannot be fixed in the slit 1a.

On the other hand, the fixing projection 12d of the terminal 12 is in a state of pushing the side surface of the side wall 1e laterally, and the fixing projection 12d does not separate from the side surface of the side wall 1e. Can be securely fixed in the slit 1a.

[0017]

[Effect of device]

 As is clear from the above description, the connector of the present invention has the fixing projections formed on the side surface of the terminal, which are engaged with the side walls inside the slit of the housing. When inserted, the terminal fixing projections push the side wall sideways, and the terminal fixing projections do not separate from the side surfaces of the side wall, so that the terminal can be securely fixed in the slit, and the reliability of the connector is improved. Will improve the sex.

[Brief description of drawings]

FIG. 1 is a sectional view of a connector of the present invention.

FIG. 2 is a perspective view of a terminal.

FIG. 3 is a side view, a plan view, and an enlarged plan view of a main part of the terminal.

4A is a front view of the housing, and FIG. 4B is a sectional view.

FIG. 5 is a perspective view of a conventional terminal.

FIG. 6 is a sectional view of a conventional connector.

[Explanation of symbols]

 1 Housing 1a Slit 1e Side wall 1h Contact piece groove 1i Press fit piece groove 12 Terminal 12a Contact piece 12b Press fit piece 12d Fixing protrusion

Claims (2)

[Scope of utility model registration request] 1. A connector in which a fork-shaped terminal having a contact piece and a press-fitting piece is fitted and fixed in a contact piece groove and a press-fitting piece groove in a slit formed in a housing, respectively. A connector characterized by integrally forming a fixing projection that is locked to a side wall of a slit of a housing. 2. The connector is for connecting the terminal to a flat electric wire, wherein an upper wall and a lower wall of the connector housing are continuous only at both left and right end walls, and a through hole is formed in the left and right direction at an intermediate portion. 2. The connector according to claim 1, wherein the fixing projection is provided on a side surface of the press-fitting piece, and the fixing projection is locked to a side wall portion of the press-fitting groove projecting from the lower wall side.