JPH0216522Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field This invention relates to a terminal block, and in particular to the structure of a mounting device for mounting a printed circuit board.

(b) Prior art As a device for attaching a printed circuit board to a terminal block, conventional Utility Application No. 164803/1983 and Japanese Patent Application No. 1983-
As shown in Publication No. 9244, a plurality of barriers are formed on the top of the base at regular intervals, terminal fittings and terminal screws are arranged between each barrier, and both sides of the base between each barrier are provided. The terminal block body has a protrusion formed on the wall, and the mounting device has a mounting groove formed in the lower part of the base for inserting and fixing a printed circuit board, and a mounting piece having a mounting hole in the upper part that fits into the protrusion of the terminal block main body. The formed terminal block is shown.

(c) Problems that this invention attempts to solve However, normally, a circuit pattern is printed on both sides of a printed circuit board, and with conventional terminal block printed circuit board mounting devices, insertion can be done in either direction. Therefore, there was a problem that incorrect insertion of the printed circuit board could cause the equipment to malfunction.

(d) Means for solving the problem This invention was proposed to solve the above problem, and its purpose is to prevent incorrect insertion of the printed circuit board. A printed circuit board mounting device is provided in which a fitting portion of at least one mounting device of the printed circuit board mounting device disposed on the main body is formed with a fitting portion that fits into an insertion direction positioning notch formed on the printed circuit board. It will be achieved soon.

(e) Effect The printed circuit board mounting device of this invention has a structure in which a fitting portion is formed in the mounting portion, and this fitting portion is fitted with a notch for positioning the insertion direction formed in the printed circuit board. , the printed circuit board can only be inserted into the mounting device in a predetermined direction.

(f) Embodiment Hereinafter, this invention will be explained based on an embodiment shown in FIGS. 1 to 3.

A is a terminal block, which is composed of a terminal block main body 1, a terminal screw with washer 2, a terminal screw receiving fitting 3, a terminal fitting 4, a mounting device 5, and a mounting device 6.

The terminal block main body 1 is formed of a resin material in a long shape, and a plurality of barriers 1b are formed on the upper surface of the base 1a at regular intervals, and there are gaps between each barrier 1b. A through hole 1c is formed in each of the through holes 1c, and a guide locking piece 1d and a guide locking groove 1e are formed in the side wall of the through hole 1c on the barrier 1b side, and a base plate is formed between each barrier 1b. 1 unit
Projections 1f, 1f are formed on both side walls a.

The terminal screw with washer 2 has a washer 2a and a terminal screw 2b.
A terminal screw 2b is attached to the washer 2a so as to be rotatable but not to come off, and locking pieces 2c, 2 are attached to the washer 2a from both sides of one side.
A connecting piece 2e connecting both the locking pieces 2c, 2c is formed near the center of the locking pieces 2c, 2c, and locking protrusions 2d, 2c are provided at the lower part of the locking pieces 2c.
2d is formed, and these locking protrusions 2d, 2d
is a guide locking piece 1 between the barrier 1b of the base 1a
d and 1d to prevent the washer-equipped terminal screw 2 from slipping upward.

The washer-equipped terminal screw 2 positions the washer 2a above the bottom side of the base 1a, and also connects the guide locking pieces 1d, 1d and the locking pieces 2c, 2c between the barrier 1b.
The locking protrusions 2d, 2d are inserted into the through hole 1c so as to face each other.

The terminal screw holder 3 has a substantially U-shaped cross section, and the upper horizontal piece 3a has a terminal screw 2 at the center of the upper surface.
A screw hole 3b is formed into which the screw hole 3b is screwed, and locking protrusions 3d, 3d are formed on both sides of the vertical piece 3c.
It is inserted into the guide locking grooves 1e, 1e between the barriers 1b, and is locked to the terminal ends of the guide locking grooves 1f, 1f, thereby playing the role of preventing the terminal screw holder 3 from coming off upward. .

The terminal fitting 4 is made of a thin conductive material, and the base 4a has a notch 4f formed in the center of the upper surface, and a hanging piece 4 is formed on one side of the base 4a.
b is formed, and this hanging piece 4b has a locking piece 4 formed with a locking part 4c formed in an approximately oval shape at the upper part.
d is formed, and the other side has a hanging piece 4g.
is formed, and this hanging piece 4g has 2 at the bottom.
A contact base 4h is formed on which pairs of contact pieces 4i, 4i, 4i, 4i are formed.

In addition, locking protrusions 4e, 4e are formed on both sides of the base 4a on the side of the hanging piece 4b, and these locking protrusions 4e, 4e form a guide locking groove 1e between the barrier 1b of the base 1a. , 1e and is engaged with the terminal ends of the guide engagement grooves 1f, 1f, thereby serving to prevent the terminal fitting 4 from slipping upward.

The locking piece 4d is connected to the connecting piece 2e of the terminal screw 2 with washer.
The role of holding the terminal screw 2 with a washer by bringing the lower surface of the connecting piece 2e into contact with the locking part 4c, and the role of holding the terminal screw 2 with a washer by bringing the lower surface of the connecting piece 2e into contact with and locking the locking part 4c. It has the role of holding the terminal screw 2 with washer in two positions.

The terminal fitting 4 includes the above-mentioned terminal screw receiving fitting 3, a notch 4f, a screw hole 3b, a hanging piece 4b and a vertical piece 3.
c. After arranging the locking protrusion 4e and the locking protrusion 3d to face each other and positioning them between the base 4a and the contact base 4h, the base 4a is positioned upward from the bottom side of the base 1a. Guide locking groove 1e, 1
e and the locking protrusions 3d, 3d are respectively inserted and disposed in the through hole 1c in correspondence with each other.

The printed circuit board mounting device 5 is made of a resin material, and a base 5a is formed with mounting pieces 5b, 5b having mounting holes 5c, 5c formed on both sides, and a recess 5d formed on the top surface. , hanging piece 5e at the bottom
A mounting groove 5 is formed in this hanging piece 5e.
f is formed, and the recess 5d and the mounting groove 5f are formed to communicate with each other.

The mounting device 5 is arranged by fitting the projections 1f, 1f of the base 1a into the mounting holes 5c, 5c in correspondence with each other.

In this case, the contact pieces 4i, 4i, 4 of the terminal fitting 4
i and 4i are provided so as to be located within the recess 5d, and the mounting devices 5 are provided on the base 1a, except for one location.

The printed circuit board mounting device 6 is made of a resin material, and the base 6a has mounting pieces 6b, 6b formed with mounting holes 6c, 6c on both sides, and a recess 6d formed on the top surface. , hanging piece 6e at the bottom
is formed, and a mounting groove 6 is formed in this hanging piece 6e.
A fitting protrusion 6g, which is a fitting portion, is formed on one side of the mounting groove 6f.
The recess 5d and the mounting groove 5f are formed to communicate with each other.

The mounting device 6 is arranged by fitting the projections 1f, 1f of the base 1a into the mounting holes 6c, 6c in correspondence with each other.

In this case, the contact pieces 4i, 4i, 4 of the terminal fitting 4
i, 4i are provided so as to be located within the recess 6d, and the attachment device 6 is provided at one location removed.

Reference numeral 7 denotes a printed circuit board, which has a pattern on both sides, has a notch 7a for positioning in the insertion direction formed in a part of the end, and has a fitting protrusion 6g of the mounting device 6 and the notch 7a. into the mounting groove 6f.
and is inserted and fixed at 5f.

In this case, the printed circuit board 7 is
It is inserted between the pair of contact pieces 4i, 4i, and in order to fit the fitting protrusion 6g and the notch 7a, the insertion direction and position are determined.

(g) Effect As is clear from the above explanation, this invention has a method in which the mounting portion of at least one of the printed circuit board mounting devices is fitted with a notch for positioning the insertion direction formed in the printed circuit board. Since it is configured to form a fitting portion, the insertion direction is determined when inserting the printed circuit board into the mounting device, and it has the practical effect of being able to prevent malfunction of the device due to incorrect insertion.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view of one implementation of this invention, FIG. 2 is a partial cross-sectional perspective view showing the main parts, and FIG. 3 is a printed circuit board mounted on the terminal mounting device. FIG. 3 is a perspective view showing the installed state. A...Terminal block, 1...Terminal block body, 1a...Base, 1b...Barrier, 1c...Through hole, 1d...
Guide locking piece, 1e...Guide locking groove, 1f
...Protrusion, 2...Terminal screw with washer, 2a...Washer, 2b...Terminal screw, 2c...Locking piece, 2d...
... Locking protrusion piece, 2e ... Connection piece, 3 ... Terminal screw holder, 3a ... Upper horizontal piece, 3b ... Screw hole, 3c
... Vertical piece, 3d ... Locking projection, 4 ... Terminal fitting, 4a ... Base, 4b ... Hanging piece, 4c ... Locking part, 4d ... Locking piece, 4e ... Locking projection , 4f
...Notch, 4g...Descent piece, 4h...Contact base, 4i...Contact piece, 5, 6...Mounting device, 5
a, 6a... Base, 5b, 6b... Mounting piece, 5
c, 6c...Mounting hole, 5d, 6d...Recess, 5
e, 6e...Descent piece, 5f, 6f...Mounting groove, 6
g...Mating protrusion, 7...Printed circuit board, 7a...
Notch.

Claims (1)

[Claims for Utility Model Registration] A plurality of barriers are erected on a base at regular intervals, a through hole is formed between each of the barriers for arranging a terminal fitting, and protrusions are formed on both side walls of the base. A terminal block main body formed with a terminal block body, a mounting part for inserting and fixing a printed circuit board that is electrically connected to the terminal fitting at the bottom of the base, and mounting pieces that fit with the protrusions of the terminal block main body on both sides of the upper part. In a terminal block comprising a printed circuit board mounting device, the mounting portion of at least one of the printed circuit board mounting devices is fitted with a notch for positioning the insertion direction formed in the printed circuit board. A mounting device for a printed circuit board of a terminal block, characterized in that a terminal block is formed with a section.