JP2561446Y2 - connector - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector.

[0002]

2. Description of the Related Art For example, as shown in FIGS. 5 and 6, a non-waterproof type connector 10 for connecting harnesses of a vehicle includes:
Connector body 11, terminal 12, back retainer 1
3 and the like.
1a is provided with a predetermined number of holes 11b into which the terminal 12 is inserted. The front end of the cable 14 is connected to the cable connection portion 12b at the rear end of the terminal 12, and the back retainer 13 is connected to the connector main body 11. A locking claw 11c which is fitted on the rear portion 11a and which is provided on a side surface of the rear portion 11a of the connector body 11 in a locking hole 13a provided on the side wall.
Are engaged and cannot be deviated.

[0003] When assembling this connector, the terminal 12 is inserted by pinching the tip of the cable 14 into the hole 11b of the rear portion 11a of the connector body 11 with a fingertip, and then the back retainer 13 is fitted over the rear portion 11a of the connector body 11. Thus, the terminal 12 is prevented from coming off and half-inserted. A fixing claw 11d is provided on the inner surface of the hole 11b of the connector body 11, and the claw 11d is regulated by the back retainer 13 fitted to the outside, so that outward deformation or the like is prevented. Terminal 12
In the state in which the locking portion 12a is correctly inserted into the hole 1b, the locking portion 12a is fixed to the connector main body 11 by the claw 11d to prevent rattling in the hole 11b.

[0004]

The size of the connector and the diameter of the cable tend to be further reduced. As a result, it becomes difficult to insert the terminal 12 into the connector body 11 by hand as described above. . That is, as the diameter of the cable 4 is reduced, the cable 1 is easily bent,
When the terminal 12 is inserted into the hole 11b of the connector body 11 by pinching the terminal 4 with a fingertip, the locking portion 12a
The resistance when passing through while pushing up 1d causes the cable 14 to bend and makes it difficult to push it. Further, with the miniaturization of the connector body 11, the strength of the fixing claws 11d is reduced and weakened, so that it is difficult to sufficiently fix the terminal 12, and there is a problem that the terminal 12 is easily rattled and easily broken.

The present invention has been made in view of the above points, and has as its object to provide a connector capable of facilitating the assembling work of the connector and coping with downsizing.

[0006]

According to the present invention, in order to achieve the above object, a terminal having a cable connected to a rear end and a positioning hole formed in a lower surface of a locking portion is provided on a plate surface. The locking portions of the terminal are erected at predetermined intervals so that the locking portions of the terminal can be fitted from above, and a pair of locking claws for locking both side surfaces and the upper edge of the locking portion are projected between the locking claws. An inner connector provided with a plurality of bosses which are provided according to the number of terminals and which are fitted in the positioning holes, and an inner connector on which the terminals are mounted are fitted and fixed to a rear portion, and the respective terminals are locked. An outer connector is provided on the inner surface opposite to the upper surface of the portion, the outer connector being provided upright facing each locking portion, and provided with a rib for locking each of the locking portions.

[0007]

The locking portion of the terminal to which the cable is connected at the rear end is fitted between the pair of locking claws of the inner connector from above, and is inserted into the positioning hole formed in the locking portion. The boss provided between the locking claws is fitted. Thereby, the terminal is accurately positioned and fixed without the engaging portion rattling on the inner connector in the longitudinal (front-rear) direction, right and left and up and down. The inner connector is fitted and fixed to the rear of the outer connector with the terminal mounted. In this state, ribs provided on the inner surface of the outer connector so as to face the upper surfaces of the locking portions of the terminals lock the upper surfaces of the locking portions to prevent the terminals from coming off.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the accompanying drawings. 1 to 4, the connector 1 includes an outer connector 2, an inner connector 3, a terminal 4, and the like. The outer connector 2 is provided on opposed upper and lower inner surfaces 2 b and 2 b ′ of a rear portion 2 a as described later. Ribs 2c, 2c 'for preventing the terminal from coming off (FIGS. 3 and 4)
It is standing upright. These ribs 2c, 2c '
A plurality of them face each other at predetermined intervals in the width direction, that is, according to the number of terminals to be inserted. A locking hole 2d (only one side is shown) is formed in the rear portion 2a at substantially the center near the opening end on both left and right sides.

The inner connector 3 has side walls 3b, 3b standing up and down on both sides of a rear portion of the board 3a, and a locking hole 2c formed in both sides of the outer connector 2 at substantially the center. A locking claw 3c (only one side is shown) that can be fitted is provided. At the front end of the upper surface of the substrate 3a, a plurality of locking claws 3d, 3d are provided at predetermined intervals in opposition to each other according to the number of terminals.

The pair of locking claws 3d and 3d
d is an interval at which the locking portion 4a of the terminal 4 can be fitted from above with a slight gap, and the center substrate 3a between the locking claws 3d and 3d is used for positioning and positioning the terminal. A boss 3e for fixing is protruded. The same applies to the other pairs of locking claws. Further, a rib 3f for preventing terminal interference is provided between the adjacent pair of locking claws 3d, 3d at the rear of the upper surface of the substrate 3a.
Also on the lower surface of the substrate 3a, the claws 3d 'and 3d' for locking the terminal and the boss 3e 'for positioning and fixing symmetrically with the upper surface.
(FIG. 3) are integrally formed.

A hole 4c is formed in the lower surface of the locking portion 4a of the terminal 4, and the hole 4c is provided between the locking claws 3d and 3d which form a pair with the substrate 3a of the inner connector 3. The boss 3e can be fitted. The distal end 5a of the cable 5 is firmly and mechanically and electrically connected and fixed to the cable connecting portion 4b behind the locking portion 4a of the terminal 4 by, for example, crimping connection.

The assembling work will be described below. First, as shown in FIG. 1 and FIG. 2, the locking portions 4a of the terminal 4 are pushed between the pair of locking claws 3d and 3d of the inner connector 3 while pushing and expanding these locking claws 3d and 3d from above.
And the boss 3e is fitted into the hole 4b formed in the lower surface. In this state, the terminal 4 restricts the both side surfaces and the upper edge of the locking portion 4a by the locking claws 3d, 3d to prevent rattling in the up-down and left-right directions, and furthermore, the boss 3e prevents the terminal 4 from moving in the front-rear direction. The rattling is prevented, and the inner connector 3 is very easily and satisfactorily mounted and fixed. In this way, a predetermined number of terminals 4 are attached to the inner connector 3.

Next, the inner connector 3 is inserted from the rear portion 2a of the outer connector 2, and each of the locking claws 3c of the side walls 3b and 3b (both holes on one side) are inserted into locking holes 2d provided on both side walls. And only the locking claws are shown) and fitted and locked so as not to deviate. In this state, as shown in FIG. 3 and FIG. 4, the tip of the rib 2c of the inner surface 2b of the outer connector 2 faces the center of the upper surface of the locking portion 4a of the terminal 4 at a slight interval, and the boss 3e At the same time, the terminal 4 is prevented from coming off. The same applies to the terminal 4 mounted on the lower surface of the substrate 3a of the inner connector 3. In the above embodiment, the inner connector 3 is provided with the rib 3f for preventing the adjacent terminals from interfering with each other. However, the locking claws 3d, 3d for locking the adjacent terminals are provided at the rear end. The rib 3f for preventing interference may be extended to the vicinity.

[0014]

As described above, according to the present invention, the terminal can be easily mounted when assembling the connector, erroneous assembling, half-insertion, etc. are greatly reduced, and the number of assembling steps is reduced. In addition, since the terminal does not depend on the strength of the cable when assembling, it can be applied to a cable having a small diameter, and accordingly, the connector can be downsized. In addition, since the terminal can be easily positioned and fixed, and can be fixed satisfactorily, detachment, breakage, and the like of the terminal are greatly reduced, and there are excellent effects such as improvement in durability.

[Brief description of the drawings]

FIG. 1 is an assembled perspective view showing an embodiment of a connector according to the present invention.

FIG. 2 is an essential part perspective view showing a relationship between an inner connector and a terminal of FIG. 1;

FIG. 3 is a sectional view in an assembled state of FIG. 1;

FIG. 4 is a sectional view taken along the line IV-IV in FIG. 3;

FIG. 5 is an assembled perspective view of a conventional connector.

FIG. 6 is a sectional view in an assembled state of FIG. 5;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Connector 2 Outer connector 2d Detachment prevention rib 3 Inner connector 3d Engagement claw 3e Positioning and fixing boss 3f Terminal interference prevention rib 4 Terminal 4a Engagement part 4b Cable connection part 5 Cable

Claims (1)

(57) [Scope of request for utility model registration] 1. A terminal having a cable connected to a rear end and a hole for positioning formed on a lower surface of a locking portion, and a locking portion of the terminal which is erected at a predetermined interval on a plate surface and fitted from above. The number of terminals includes a pair of locking claws that can be inserted and lock both side surfaces and an upper edge of the locking portion, and bosses projecting between the locking claws and fitting into the positioning holes. The inner connector provided with a plurality of inner connectors and the inner connector to which the terminal is mounted are fitted and fixed to a rear portion, and stand on the inner surface facing the upper surface of the locking portion of each terminal so as to face each locking portion. And an outer connector provided with a rib for locking each of the locking portions.