JPH0438558Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to an assembly in which a plurality of electronic equipment units are arranged side by side.

Conventional configurations and their problems Conventionally, in electronic equipment units that control the dimming of loads such as discharge lamps or incandescent lamps, necessary electronic components such as power thyristors and their control parts are housed inside a chassis made of metal such as aluminum. In order to drive a large number of loads, a plurality of electronic equipment units are arranged side by side at intervals and mounted on a large base. The strength of such a unit depends on the mechanical strength of the chassis, and a chassis with a simple structure of bent metal plates had problems in terms of strength.
In addition, breakers related to this unit are installed separately on the board, which requires a large installation space, making the board large, and the wiring between them becomes long, making the assembly process troublesome. There were flaws.

Purpose of the invention This invention eliminates the above-mentioned drawbacks, maintains the simplicity and low cost of the chassis, improves the assembly strength of the unit as a whole, simplifies wiring work, and furthermore reduces the size of the board. The purpose is to

Structure of the Invention In order to achieve the above object, the present invention aims to simplify and reduce the cost of the chassis by bending a metal plate such as aluminum to form a chassis into which necessary electronic components are attached. In order to facilitate wiring work by attaching external fittings such as a breaker to the bent portion of the front end of the chassis and to downsize the board, the width of the external fitting is larger than the bending width of the chassis. By arranging a plurality of units in parallel and attaching the proximal bent portion of the chassis to the base, the chassis itself can be assembled with a molded outer shell. Although its strength is small, it increases the overall strength as an aggregate.

DESCRIPTION OF EMBODIMENTS Next, embodiments of the present invention will be described with reference to the drawings.

Figure 1 shows a dimming control panel, which includes a board 1, a main breaker 2, a bus bar 3 for power supply, an electronic device unit 4 forming a dimming control section, a control panel 5, a terminal block 6 for connecting to the load, etc. is installed.

The electronic device unit 4 is shown in detail in FIGS. 2 and 3, and has a power thyristor 8, its control circuit section 9, and a noise filter inside a chassis 7 formed by bending a metal plate such as aluminum. Required electronic components such as a coil element 10 are attached. The chassis 7 has bent portions 11 to 13 on both sides, and although the front side is open in FIG. Of course, it may be bent to form the shape. In addition, the chassis 7 has openings at its upper and lower ends, and the power thyristor 8 is installed between these openings, so heat radiation is good due to the natural flow of air. However, if heat radiation is not so necessary, A closed configuration prevents dirt from entering. In short, the chassis may be any type of bent metal plate. External fittings such as a breaker 14 are attached to the front end bent portion 11 of the chassis 7. The breaker 14 has an outer shell made of synthetic resin and has a width D larger than the bending width d of the chassis 7. A plurality of electronic device units 4 are arranged side by side by abutting the breakers 14 on the chassis 7. The bent portion 13 on the proximal end side is attached to the base 1 with screws, etc., and the breaker 14, which has a precise width D made of synthetic resin molding, allows the electronic equipment units 4 to be positioned accurately. Although the chassis 7 has a simple structure, the overall strength of the assembly of the electronic equipment units 4 can be greatly improved. The breaker 14 is fixed to the baking plate 15 with screws, etc., and the baking plate 15 is also attached at the same time with the screws that attach the mounting leg 16 of the coil element 10 to the tip side bending part 11. It is attached to the chassis 7 via. In addition, if the bake plate 15 is cut and formed from a large material,
The width of the baked plates 15 is preferably slightly smaller than the width D of the breaker 14, and it is better if adjacent baked plates 15 do not come into contact with each other to prevent the positioning of the electronic equipment units 4 from being misaligned due to variations in the width of the baked plates 15. can be prevented. In addition to the breaker 14, there are also switches,
Any device with a molded outer shell, such as a connection terminal block or an aluminum die-cast heat sink, can be used.Furthermore, the breaker 14 is installed in a cutout at the corner of the chassis 7, but even if the chassis is rectangular, the breaker 14 can be used. It is sufficient if it is attached to the outer end of the chassis.

Effects of the invention As is clear from the above, the chassis can be of a simple structure made by bending a metal plate.
Not only can it be manufactured at a low cost, but the necessary external mounting parts such as a breaker are attached to the bent part on the front end of the chassis, making it easier to organize wiring, making the board smaller, and furthermore, the chassis has a simple structure. Nevertheless, it is possible to assemble the electronic equipment units as an assembly by abutting the above-mentioned external mounting parts with molded outer shells, arranging multiple electronic equipment units in parallel, and attaching the proximal bent portion of the chassis to the base. This has the effect of improving strength.

Furthermore, since the external attachment parts can be manufactured with precise dimensional accuracy by "molding", they can accurately compensate for the lack of dimensional accuracy of the chassis, and by making them into an aggregate, they can compensate for the lack of self-supporting strength of the chassis. It can also be "molded" with a width larger than the width of the chassis.
By attaching an external attachment part having an outer shell according to the present invention to the outer end of the chassis, it is possible to arrange the electronic equipment units so that the external attachment parts are in contact with each other, thereby improving the arrangement precision.

[Brief explanation of the drawing]

FIG. 1 is a front view of a dimming control panel to which an assembly of electronic equipment units of the present invention is applied, FIG. 2 is a side view of the same main part, and FIG. 3 is a top view of the main part. 1...Base, 4...Electronic device unit, 7...
Chassis, 8-10... Required electronic parts, 14...
...Breaker (externally mounted parts).

Claims (1)

[Scope of utility model registration request] A bent part is formed by bending a metal plate,
A chassis with necessary electronic components mounted inside the bent part, and an external part such as a breaker having a molded outer shell attached to the bent part on the front end side of the chassis and having a width larger than the bending width of the chassis. A set of electronic equipment units, characterized in that a plurality of electronic equipment units equipped with attachment parts are arranged in parallel by abutting the external attachment parts, and are attached to the base at the proximal bent portion of the chassis. body.