JP3066371B1 - Connector housing fixing mechanism to motherboard - Google Patents

Abstract

A connector housing can be fixed to a motherboard with a simple and simple structure. SOLUTION: On a surface opposite to a terminal hole 4 provided in a connector housing 3 which is larger than a terminal 2 erected on a motherboard 1, pressing protrusions 5 and 6 for two pairs of terminals are vertically spaced at a constant distance i. It is constructed by protruding.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a mechanism for fixing a connector housing to a top surface of a motherboard.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 7, a connector housing a shown in FIGS. 4 to 6 has a plurality of signal terminals planted on a motherboard b at predetermined intervals in a biaxial direction. By inserting terminal holes d, d ... penetratingly formed in correspondence with the respective signal terminals c, c ... into c, c ..., they are fixed to the upper surface of the motherboard b.

[0003]

However, in the above-described conventional connector housing fixing mechanism, a mounting bracket (not shown) is required for tightly fixing the connector housing a on the motherboard b. There is such a problem.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and has a structure in which a connector housing is directly fixed to a signal terminal erected on a motherboard. To provide a connector housing fixing mechanism to a motherboard which can be easily and easily adhered and fixed to a motherboard with a simple structure.

[0005]

In order to achieve the above object, a connector housing fixing mechanism for a motherboard according to the present invention is provided in the connector housing so as to be larger than the terminals erected on the motherboard. And a pair of protrusions for pressing the pair of terminals are provided at predetermined intervals in the vertical direction.

[0006]

The connector housing is slanted by a predetermined angle with respect to the signal terminals standing upright at predetermined intervals in the biaxial direction on the upper surface of the motherboard, and the terminals are inserted into the terminal holes of the connector housing. Here, the dimension of the terminal hole in one axis direction is formed to be larger than that of the terminal, and two pairs of terminal pressing projections in the one axis direction of the terminal hole face each other at a constant interval in the vertical direction, Because it is formed, one side edge of the upper end opening in one axial direction of the terminal hole and the other side edge of the lower end opening are guided by the terminal, and the projection is easily inserted without being pressed against the terminal. You.

As described above, once the connector housing is inserted obliquely into the terminal, and then pressed against the upper surface of the motherboard to make it parallel to the upper surface of the motherboard.
A pair of protrusions in the terminal hole are pressed against the upper and lower ends of the terminal symmetry plane, and the connector housing is tightly fixed to the upper surface of the motherboard.

Since a plurality of terminals and terminal holes of the motherboard and the connector housing are formed at predetermined intervals in the biaxial direction, a force for rotating the connector housing is canceled in the terminal portions adjacent to each other. The projection in each terminal hole is held in a state pressed against the terminal. Also, a large number of connector housings formed in blocks of a predetermined unit can be sequentially fixed on the terminals as described above and arranged in parallel on the motherboard.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a connector housing fixing mechanism to a motherboard according to the present invention will be described below with reference to the drawings. FIG. 1 is a longitudinal sectional view showing a state in which a connector housing is tightly fixed to the upper surface of a motherboard, FIG. 2 is a longitudinal sectional view showing a state in which the connector housing is obliquely inserted into terminals erected on the motherboard, and FIG.
1 shows a sectional view taken along line AA in FIG.

As shown in FIGS. 1 to 3, a plurality of signal terminals 2 made of metal are vertically arranged on the upper surface of a motherboard 1 made of plastic or the like at regular intervals in two axial directions. It is. On the other hand, the plastic connector housing 3 has a plurality of terminal holes 4 corresponding to the terminals 2 described above.
Are formed to penetrate in the vertical direction.

As shown in FIG. 3, the terminal 2 has a rectangular cross-sectional view, and a tip 2a is formed in a substantially truncated pyramid shape so as to be easily inserted into the terminal hole 4.

As shown in FIG. 3, the terminal hole 4 of the connector housing 3 has a uniaxial dimension e equal to or slightly larger than the uniaxial dimension f of the terminal 2 described above. In addition, the dimension g in the direction perpendicular to this is set to be larger than the dimension h in the same direction as that of the terminal 2 and the dimensions e and f by a predetermined dimension. The lower end 4a of the terminal 4 is formed in a substantially truncated pyramid-shaped wide opening so that the terminal 2 can be easily inserted from below.

In the longitudinal direction (left and right directions in FIGS. 1 to 3) of the terminal hole 4, the opposing surfaces 4b and 4c are located near an intermediate portion of one opposing surface 4b in the vertical direction and the other opposing surface. A pair of two terminal pressing projections 5 and 6 are formed at the lower end of the surface 4c so as to protrude integrally from the connector housing 3. That is, the pair of protrusions 5,
As shown in FIG. 1, the terminal 6 does not protrude oppositely, but protrudes obliquely up and down at a fixed interval i, and is pressed against the upper and lower portions of the symmetry plane of the terminal 2 so that the terminal 2 and the connector housing 3
a is fixed in parallel and closely to the upper surface 1 a of the motherboard 1.

Further, with respect to the terminal 2, the length g of the terminal hole 4 in the long axis direction, the positions of the protrusions 5 and 6, and the length of the protrusion are, as shown in FIG. When the connector housing 3 is inserted obliquely at a predetermined angle by the step 4, the lower end opening edge 4d of the one opposing surface 4b and the upper end opening edge 4e of the other opposing surface 4c are guided in contact with the terminal 2. In this manner, the bottom surface 3a of the connector housing 3 is brought into close contact with the top surface 1a of the motherboard 1 in parallel so as to prevent the pair of protrusions 5 and 6 from being pressed against the terminals 2 after being inserted diagonally, as shown in FIG. As described above, the pair of protrusions 5 and 6 are pressed against the upper and lower portions of the symmetry plane of the terminal 2, and the connector housing 3 is fixed to the terminal 2.

[0015]

Since the present invention is constructed as described above, a pair of two protrusions projecting from the opposing surface of the terminal hole are provided on the upper and lower sides of the signal terminal provided on the upper surface of the motherboard. Since the connector housing is fixed to the terminal by being pressed into the terminal, it can be fixed with a simple structure without the need for extra mounting brackets on the motherboard, and after inserting the connector housing into the terminal diagonally, parallel to the top of the motherboard It can be easily and quickly fixed on the motherboard by one-touch operation that is easy to press.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing a connector housing fixed state to a motherboard according to an embodiment of the present invention in a connector housing fixed state.

FIG. 2 is a longitudinal sectional view showing a state where the connector housing is obliquely inserted into a signal terminal of the above mechanism.

FIG. 3 is a transverse sectional view taken along line AA in FIG.

FIG. 4 is a plan view of the connector housing.

FIG. 5 is a front view of the housing.

FIG. 6 is a bottom view of the housing.

FIG. 7 is a front view showing a conventional connector housing fixing mechanism to a motherboard.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Motherboard 2 Terminal 3 Connector housing 4 Terminal hole 4b, 4c Opposing surface 5, 6 A pair of protrusions

Claims (1)

(57) [Claims] 1. A pair of terminals for pressing a pair of terminals, which are larger than terminals erected on a motherboard and opposed to terminal holes provided in a connector housing, are provided at predetermined intervals in a vertical direction. A connector housing fixing mechanism to a motherboard, characterized in that: