JPH11251075A - Electronic apparatus unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To close a window hole corresponding to a position at which a terminal board is not installed and cancel the closing when a terminal board is installed but inhibit careless cancellation of the closing. SOLUTION: In an electronic apparatus unit 4 that faces a terminal board 1 to a window hole 3 formed in a generally U-shaped resin cover 2, this electronic apparatus unit 4 has a structure wherein removable closing pieces 6 are so formed integrally on the cover 2 by way of each thin joining part 5, corresponding to positions where no terminal board 1 may be installed, as to close the remainder of window holes 3, and protrusions 8 capable of supporting a built-in component of the electronic apparatus 4, for instance, a printed circuit board 7 are integrally formed on the inside surface of the closing pieces 6. The terminal board 1 is fixed on the printed circuit board 7 and a wire connected to a controlled load not shown in the figure is inserted from the front connection hole of the terminal board 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic device unit suitable as a light control unit.

[0002]

2. Description of the Related Art In an electronic equipment unit in which a terminal block faces a window hole formed in a cover, if a unit that does not include a part of the terminal block or that does not include a terminal block is required,
At that location, it is conceivable that the internal charging section may be touched through the window hole.

[0003]

In view of the problems to be solved, the present invention can close a window hole corresponding to a portion where no terminal block is provided, and can release the blockage when a terminal block is provided. The purpose is to prevent careless release of the blockage.

[0004]

Means for solving the problems are as described in the claims.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION Next, an embodiment of the present invention will be described. However, this is merely an exemplary embodiment adopted based on the present invention, and the present invention will be described based on matters unique to the embodiment. Therefore, the technical scope of the present invention should be determined based on the matters stated in the claims and matters substantially equivalent to the matters.

In the embodiment shown in the drawings, a terminal block 1 may not be provided in an electronic equipment unit 4 in which a terminal block 1 faces a window hole 3 formed in a substantially U-shaped cover 2 made of resin. In response to the above, a closing piece 6 that can be removed via the thin connecting portion 5 is integrally formed on the cover 2 so as to cover the (remaining part of) the window hole 3, and the inner surface of the closing piece 6 has the electronic device unit 4. The electronic device unit 4 includes a built-in component such as a projection 8 that can be supported on a printed circuit board 7. The terminal block 1 is fixed to the printed circuit board 7, and an electric wire to be connected to a controlled load (not shown) is inserted from a front connection hole of the terminal block 1.

[0007] Generally, a plurality of electronic equipment units 4 are arranged side by side in a frame (not shown) installed inside a control panel and the like, and both end protruding portions of the cover 2 are fixed to the frame. When two terminal blocks 1 are required, as shown in the figure, there is a possibility that the closing piece 6 is present and the remaining portion of the window hole 3 does not touch the internal charging portion. In the case of a unit requiring three terminal blocks 1, the thin connecting portion 5 is cut off by applying a reciprocating force to the closing piece 6 about the thin connecting portion 5 as an axis, and the closing piece 6 is removed. The terminal block 1 is manufactured in a state where the terminal block 1 is fixed to the printed board 7 corresponding to the location. Removal of the closing piece 6 can be easily performed without the cover 2 assembled as a unit. In a state where the cover 2 is assembled as a unit, the projections 8 come into contact with the printed circuit board 7 even when the closing piece 6 is pushed in.
The blocking piece 6 cannot be removed, and the user mistakenly removes the blocking piece 6.
Is almost impossible to remove.

The cover 2 is provided with a screw 14 against a boss 13 integrally projecting from the metal radiator plate 12 having the fins 11.
It is fixed at. More specifically, a boss 15 integral with the cover 2 projects from the inner surface of the cover 2, and the screw 14
Through the printed circuit board 7 and screwed into the boss 13. Reference numeral 16 denotes a power semiconductor element, which is connected to the printed circuit board 7 and fixed to the heat sink 12. Reference numeral 17 denotes a coil which is fixed to the heat sink 12. Reference numeral 18 denotes a control signal input connector which faces the hole of the case 2.

According to the present embodiment, the window hole 3 corresponding to the location where the terminal block 1 is not provided can be closed, and the blocking can be released when the terminal block 1 is provided at that location.
The blockage cannot be released carelessly.

[Brief description of the drawings]

FIG. 1 (A) Front view (B) Cross-sectional view

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Terminal block 2 Cover 3 Window hole 4 Electronic equipment unit 5 Thin connection part 6 Closure piece 7 Built-in object (printed circuit board) 8 Projection

Claims (1)

[Claims] 1. An electronic device unit in which a terminal block faces a window formed in a resin cover, and the cover is removed through a thin connecting portion corresponding to a location where the terminal block may not be provided. An electronic device unit in which a possible closing piece is integrally formed so as to close a window hole, and a projection that can be supported by a built-in component of the electronic device unit is integrally formed on an inner surface of the closing piece.