JP2000223213A - Connector for board - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connector which can be prevented from being unlocked or falling from a board by enhancing locking strength. SOLUTION: This connector for a board includes a bottom type housing 1 fixed to a board 3, a terminal 2 housed inside the housing 1 and electrically connected to the board 3, and a locking portion 5 for locking a male connector B at a side of the housing 1. The housing 1 is fixed to the board 3 such that an opening 1a matches a male connector inserting port 4 at the board 3, and further, that the locking portion 5 constitutes a lamination structure in cooperation with the edge of the male connector inserting port 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector for a board mounted on an electronic circuit board, and more particularly to a locking structure of a male connector.

[0002]

2. Description of the Related Art Conventional bottom type board connector A
1 is a housing 1 as shown in FIGS.
A terminal 2 provided in the housing 1;
The opening 1a is attached upward on the upper surface of the.

[0005] The terminal 2 projects to the lower surface of the substrate 3 through the bottom of the housing 1, and this projecting portion is soldered 8 to the lower surface of the substrate 3. On one side of the housing 1, a long hole 6 is formed which faces upward and downward, leaving a lock hooking portion 5 at the upper end.

The male connector B has a lock arm 11 having elasticity formed on one side of a main body 10, and locking projections 12 and 13 formed above and below the lock arm 11.

When the male connector B is inserted into the board connector A 1, the locking projection 13 is pushed inside the lock hook 5, and the lock arm 11 is elastically deformed. As shown in FIG.
Is locked.

[0006]

In the locked state of the male connector B, when a force is applied to the male connector B in the direction in which the male connector B is pulled out (in the direction of the arrow 20) as shown in FIG. In some cases, the lock may come off due to deformation, or the housing 1 itself may come off the substrate 3.

The present invention has been made in view of the above points, and an object of the present invention is to provide a connector for a board which improves lock strength and does not come off the lock or fall off the board.

[0008]

In order to achieve the above object, according to the first aspect of the present invention, there is provided a bottom type housing mounted on a substrate, and mounted in the housing and electrically connected to the substrate. A connector having a locking portion for locking a male connector on a side portion of the housing, wherein the housing has an opening aligned with a male connector insertion opening of the board. And the locking portion is attached to the substrate so as to form a multilayer structure with an edge of the male connector insertion opening.

Therefore, according to the first aspect of the present invention, when a force is applied to the locked male connector in a pulling direction, a deformation force is applied to the locking portion, but the locking portion is formed by the multilayer structure of the locking portion and the substrate. Is supported by the board,
The locking portion can be prevented from being deformed or damaged.

According to a second aspect of the present invention, there is provided the connector for a board according to the first aspect, wherein a thickness of the board and a locking portion formed at an end of the housing on the side of the opening are different from each other. The above-mentioned multilayer structure is constituted.

According to the second aspect of the present invention, when a force in the direction of pulling is applied to the locked male connector, a deformation force is applied to the locking portion, but the locking portion and the board have a multilayer structure in the thickness direction. Since the locking portion is supported by the substrate, the locking portion can be prevented from being deformed or damaged.

According to a third aspect of the present invention, there is provided the connector for a board according to the first aspect, wherein the engaging plate protrudes from an edge on the opening side of the housing and a lock protrudes from an inner surface of the engaging plate. A hook portion, wherein the engaging plate is fitted into the male connector insertion opening to form the multilayer structure in a direction parallel to the board.

According to the third aspect of the present invention, when a force in the direction of pulling is applied to the locked male connector, a deforming force is applied to the locking portion, but the locking is performed by the parallel layer structure of the engaging plate and the substrate. Since the back of the hook portion is supported by the substrate, the lock hook portion can be prevented from being deformed or damaged.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of the board connector of the present invention will be described in detail with reference to the drawings. The same members or those having the same functions as those in FIGS. 6 to 8 are denoted by the same reference numerals.

FIGS. 1 and 2 show a first embodiment of the present invention. The board connector A has a housing 1 and terminals 2 provided in the housing 1. The board connector A is attached to the lower surface of the board 3 so that the opening 1 a of the housing 1 is aligned with the male connector insertion opening 4 of the board 3. ing. The terminal 2 is bent upward through the bottom of the housing 1 and protrudes from the surface of the substrate 3. The protruding portion 2 a is soldered 8 to the surface of the substrate 3.

An elongated hole 6 is formed on one side of the housing 1 so as to face up and down, leaving a lock portion 5 on the side of the opening 1a. The inner surface 5a of the lock hooking portion 5 and the inner peripheral surface of the male connector insertion opening 4 coincide with each other.

That is, the housing 1 has its opening 1
a is aligned with the male connector insertion slot 4 of the board 3, and the locking portion 5 is attached to the board 3 so as to form a multilayer structure with the edge of the male connector insertion slot 4. At this time, the multilayer structure is constituted by the thickness direction of the lock portion 5 formed at the end of the housing 1 on the opening 1a side and the substrate 3.

The male connector B has a lock arm 11 having elasticity formed on one side of the main body 10, and a locking projection 13 formed on the lock arm 11. The wire harness 14 is drawn out from the upper part of the male connector B.
Reference numeral 7 in FIG. 1 is a slit for allowing the lock arm 11 to elastically deform.

When the male connector B is inserted into the connector A for a board through the male connector insertion slot 4, the locking projection 13 is pushed by the board 3 and the lock hooking portion 5, and the lock arm 11 is elastically deformed. Enter the lower part of the lock hook part 5,
As shown in FIG. In this state, when a force is applied to the male connector B in the direction in which the male connector B is unplugged (the direction of the arrow 15), the locking projection 13 hits the locking portion 5 and a deforming force is applied. As a result, the locking portion 5 is supported by the substrate 3, so that the locking portion 5 can be prevented from being deformed or damaged.

FIGS. 3 to 5 show a second embodiment of the present invention. A channel-shaped convex portion 15 is formed on one side of the housing 1, and an upper end inside the convex portion 15 is formed. A protruding lock engaging portion 16 having an upper portion forming a tapered surface 16a is protruded from the portion. This locking portion 16
It is formed integrally with the inside of an engagement plate 17 protruding above the projection 15.

In a state where the housing 1 is mounted on the board 3, as shown in FIG. 5, the engaging plate 17 protrudes slightly above the board 3, and the outer surface of the engaging plate 17 faces the male connector insertion opening 4 of the board 3. The step 18 at the upper end of the projection 15 is in contact with the lower surface of the substrate 3 while being fitted to the inner periphery. Other configurations are the same as those of the first embodiment.

That is, in the second embodiment, the engaging plate 1 protrudes from the edge of the housing 1 on the side of the opening 1a.
7 and a locking portion 16 protruding from the inner surface of the engaging plate 17, and the engaging plate 17 is fitted into the male connector insertion opening 4 to form a multilayer structure in a direction parallel to the substrate 3.

For this reason, in the second embodiment, FIG.
When the male connector B is inserted from the male connector insertion opening 4 into the board connector A, the locking projection 13 is pushed by the tapered surface 16a of the lock hooking portion 16 as shown in FIG.
1 is elastically deformed, the locking projection 13 enters the lower part of the lock hooking part 16 with a snapping sound and is locked on the lower surface of the lock hooking part 16, so that the feel of the lock can be clearly recognized.

When the male connector B is inserted, the locking portion 16
Also, a force is exerted to be pushed out by the locking projections 13 so as to escape to the outside. 1 is not deformed. In the locked state as shown in FIG. 5, when a force in the direction of arrow 18 is applied to the male connector B, the locking projection 13 hits the locking portion 16 and the locking portion 16 applies a force to escape to the outside. Is also prevented by the engagement plate 17, and the lock is not released.

Further, since the feeling of the completion of the locking of the locking projection 13 is clearly transmitted to the worker by the locking sound, the detachment of the board connector A from the board 3 due to excessive pushing of the male connector B is prevented. be able to.

The insertion of the male connector B into the board connector A is accompanied by the sliding of the locking projection 13 on the tapered surface 16a of the locking portion 16, and the sliding at this time has a small resistance. Smooth sliding can be achieved with a small insertion force.

Further, by fitting the engaging plate 17 into the male connector insertion opening 4, the housing 1 can be positioned with respect to the board 3, thereby improving the assembling property.

Further, the mounting strength of the housing 1 itself can be increased by the engagement between the engagement plate 17 and the substrate 3.

[0029]

As described in detail above, according to the first aspect of the present invention, the locking portion is attached to the board so as to form a multilayer structure with the edge of the male connector insertion opening. Even if a deforming force is applied to the hook, the lock hook is supported by the substrate, so that the lock hook can be prevented from being deformed or damaged, and from being unlocked.

Further, according to the second aspect of the present invention, since the multilayer structure is formed in the thickness direction of the locking portion and the substrate, the locking portion is supported by the substrate even when a deformation force is applied to the locking portion. As a result, it is possible to prevent the locking portion from being deformed or damaged, and to prevent unlocking,
Since the housing itself can be used in a conventional shape as it is, it can be manufactured at low cost.

According to the third aspect of the present invention, since the multi-layer structure is formed in the direction parallel to the engaging plate and the substrate, even if a deformation force is applied to the locking portion, the back of the locking portion is supported by the substrate. As a result, it is possible to prevent the locking portion from being deformed or damaged or to be unlocked, and to improve the assemblability of the housing by the engagement between the engagement plate and the substrate, and to mount the housing. Strength can be increased.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional side view showing a first embodiment of a board connector according to the present invention, showing a state before a male connector is inserted.

FIG. 2 is a longitudinal sectional side view of the board connector according to the first embodiment, showing a locked state of the male connector.

FIG. 3 is a perspective view showing a housing according to a second embodiment of the present invention.

FIG. 4 is a perspective view of a board connector according to a second embodiment.

FIG. 5 is a longitudinal sectional side view of a board connector according to a second embodiment, showing a locked state of a male connector.

FIG. 6 is a longitudinal sectional side view of a conventional board connector, showing a state before a male connector is inserted.

FIG. 7 is a longitudinal sectional side view of a locked state of a male connector of a conventional board connector.

FIG. 8 is a perspective view showing a deformed state of a conventional board connector.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Housing 1a Opening 2 Terminal 3 Substrate 4 Male connector insertion port 5, 16 Locking part 17 Engagement plate A Board connector B Male connector

Claims (3)

[Claims] 1. A bottom type housing mounted on a substrate, mounted in the housing,
And a terminal electrically connected to the board, and a connector for the board having a locking portion for locking a male connector on a side of the housing, wherein the housing has an opening formed on the board. The connector for a board, wherein the connector is fitted to the board so that the lock hooking portion forms a multilayer structure with an edge of the male connector insertion slot. 2. The board connector according to claim 1, wherein said multilayer structure is formed in a thickness direction of said board and a locking portion formed at an end of said housing on said opening side. 3. An engaging plate protruding from an edge of the housing on the opening side, and a lock hook protruding from an inner surface of the engaging plate, wherein the engaging plate is fitted into the male connector insertion opening. 2. The board connector according to claim 1, wherein the multilayer structure is formed in a direction parallel to the board.