JPH021823Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a connector for electrical connection, and particularly to a connector that can be used safely even under strong vibrations.

Conventional technology For example, electrical components such as automobile headlights are constantly used under strong vibrations, so the connectors used here must have a structure in which the female and male terminals are locked and cannot be easily separated. is necessary.

Therefore, a device that can be reliably locked during use but can be easily removed is desired. For example, in Utility Model Application No. 57-41271, a hole in the tab is placed on the tongue of the female terminal that holds the tab of the male terminal. Connectors with engageable protrusions have been disclosed to serve this purpose. This known technology connector has terminals configured as shown in FIG. That is, a is a male terminal tab provided with an engagement hole b, and c is a female terminal, and the tab a is held between arm pieces d, d and a tongue piece e. A protrusion f that engages with the engagement hole b is provided on the tongue e, and the tongue e is extended to form a lug g that projects laterally. When the tongue piece e is released from the tab a by pushing the ear piece g from above, the protrusion f separates from the engagement hole b, so that the tab a can be pulled out.

Although connectors based on such known technology satisfy the detachment prevention function, a complicated punching die is required to form the female terminals, precision is required for bending and forming, and the ear piece is not connected to the terminal. Because it protruded from the side, it was easy to get caught during handling, and it was deformed by external force, resulting in poor reliability.

Problems to be Solved In view of the above-mentioned circumstances, the present invention seeks to provide a highly reliable electrical connection terminal that has a simple external shape, is free from the risk of being caught and deformed during handling, and is highly reliable. Furthermore, it is an object of the present invention to provide a connector suitable for using such highly reliable female terminals and a combination thereof.

Means for Solving the Problems The object of the present invention as described above is to provide a male terminal with a locking portion consisting of either a recess or a hole at the coupling site with a female terminal. This is achieved by combining a seesaw-type locking body with a locking protrusion on one arm that can be engaged with a female terminal provided in a notch in the wall via an elastic fulcrum. Furthermore, the housing for accommodating such a female terminal is provided with a flexible pressing member in a notch in the wall corresponding to the other arm of the seesaw-type locking body, and a flexible pressing member is provided in the notch in the wall that corresponds to the other arm of the seesaw-type locking body, and the flexible pressing member is pressed from the outside of the housing. A connector in which the engagement of the terminals can be released by pushing the member provides even better functionality.

Embodiment 1 A terminal according to one embodiment of the present invention is shown in FIG.
1 is a T-shaped male terminal, and 1' is a tab-shaped male terminal, both of which are provided with an engaging hole 2. 3 is a female terminal, which is formed by punching out a thin metal plate and then bending it. 4 is a terminal side wall, 5 is a terminal top wall, and 6 is a terminal bottom wall. Reference numeral 7 denotes a slit provided in the bottom wall 6, into which the T-shaped male terminal 1 can be inserted. Reference numeral 8 denotes an elastic contact piece formed by bending near the insertion opening, which is continuous with the bottom wall 6 and divided into left and right parts. Reference numeral 9 denotes a locking body, which is provided by punching a part of the top wall 5 into a long and narrow shape, and is kept connected to the top wall 5 near the center so that a seesaw type operation can be performed. serves as an elastic fulcrum 10 that utilizes the elasticity of the metal plate. A locking protrusion 11 formed by pressing is provided on the lower surface of the front arm of the locking body 9. Reference numeral 12 denotes a wire joint portion.

FIG. 2 shows a housing 13 that accommodates the female terminal 3 of this embodiment, and from the front end to the lower part there is an opening into which both the T-type terminal 1 and the tab-type terminal 1' can be inserted. It has 14. Further, a flexible arm-shaped pressing member 15 is provided in place of the wall on the upper wall portion of the housing 13 corresponding to the locking body 9 of the female terminal 3 housed inside. The tip of the pressing member 15 is bulged in a button shape and is configured to be located above the arm of the locking body 9 on which the locking protrusion 11 is not provided.

FIG. 3 shows how the connector assembled in this manner is connected and disconnected. A shows a state in which the T-shaped male terminal 1 is inserted, the locking hole 2 is engaged with the locking protrusion 1, and the female terminal 3 is held between the upper wall 5 of the female terminal 3 and the elastic contact piece 8. In this state, the T-shaped terminal 1 cannot be removed, but when the pressing member 15 is pushed from the outside as shown in b, the locking body 9 tilts like a seesaw around the elastic fulcrum 10, and the locking protrusion 11 moves upward. Since it moves and comes off from the locking hole 2,
The T-type terminal 1 becomes detachable.

The above operation is exactly the same in the case of the tab-type male terminal 1'.

Embodiment 2 Another example of the terminal used in the connector of the present invention is shown in FIG. In this example, unlike the previous example, the locking body 9 is provided laterally, but is almost the same. In this case, in order to press the other arm of the locking body 9 on which the protrusion 11 is not provided, the pressing member provided on the housing may be provided in the lateral direction or may be provided on the side wall portion.

Embodiment 3 FIG. 5 shows an example of a connector for connecting tab-type male terminals with a locking body on the side wall. The tab-type male terminal 1' is provided with a locking notch 2' on the side edge, and the female terminal 3' is provided with a locking body 9 on the side wall in the front and rear direction, and is almost the same as in Example 1. The same is true.

The connection and disconnection operations of the connector in this example are similar to those in Example 1, as shown in FIGS. 6a and 6b.

Effects of the invention The connector of this invention has a simple terminal structure and no protruding parts, so there is no accident such as deformation due to external force during handling, and it is a stable and highly reliable product. Become. Furthermore, there is little waste in the materials used, the molding procedure is simple, and it is economically advantageous.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of an example of the connector terminal according to the present invention, FIG. 2 is a perspective view of the housing, and FIG. 3 is a diagram for explaining the operation of connecting and disconnecting the connector. b is a cross-sectional view during connection and detachment operation. 4 and 5 are respectively perspective views of other embodiments of the present invention, and FIG. 6 is a connector of the example shown in FIG.
b is a sectional view at the time of detachment operation. FIG. 7 is a perspective view of a known connector terminal with a detachment prevention mechanism. 1...T-type male terminal, 1'...Tab-type male terminal, 2
... Locking hole, 3 ... Female terminal, 8 ... Elastic contact piece,
9... Locking body, 10... Elastic fulcrum, 11... Locking protrusion, 13... Housing, 15... Pressing member.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A connector that is assembled by housing and fixing a female terminal that receives a male terminal in a housing,
The male terminal has a locking portion consisting of either a recess or a hole formed at the connection site with the female terminal, and the female terminal has a locking protrusion on one side that can be engaged with the locking portion. A seesaw-type locking body provided on the arm is installed in a notch in the wall of the female terminal via an elastic fulcrum, and a housing that accommodates the female terminal is attached to the other arm of the locking body. A connector with a detachment prevention mechanism that allows it to be pushed from the outside. (2) Utility model registration claim 1, in which a flexible pressing member is provided in a notch in the wall of the housing corresponding to the position of the other arm of the seesaw-type locking body.
Connectors listed in section.