JPH0644136Y2 - Unit expansion device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a unit expansion device capable of mounting an arbitrary number of units having an electronic circuit such as a microcomputer on a unit mounting member.

[Conventional technology]

Conventionally, when a bus type unit having an electronic circuit such as a microcomputer is used, a mother board is used depending on the number of units, a plurality of units are attached to the mother board, and each unit is electrically connected to the mother board by a connector. is doing.

[Problems to be solved by the device]

When a system using a plurality of units is expanded by adding units, the additional units cannot be attached to the motherboard, and it is difficult to expand the system. Therefore, it is conceivable to use a motherboard to which a unit can be added when the system is introduced. However, in this way, when the system is not expanded, the mother board does not need a portion for mounting an additional unit, which causes waste in terms of cost and space.

It is an object of the present invention to provide a unit expansion device that improves the above-mentioned drawbacks, has flexibility in system expansion, and is less wasteful in terms of cost and space.

[Means for Solving the Problems]

To achieve the above object, the present invention comprises a plurality of units each having a pair of connectors on a front surface and a rear surface, and a unit mounting member to which the plurality of units are detachably mounted. Any number of units are attached to and these units are connected by a connector.

[Action]

An arbitrary number of units are attached to the unit attachment member, and these units are connected by a connector.

〔Example〕

FIG. 1 shows an embodiment of the present invention, and FIGS. 2 (a) and 2 (b).
Shows each unit of this embodiment.

Each of the bus-type units 11 and 12 each having an electronic circuit such as a microcomputer is a front-side connector 11f and 12f connected to an internal electronic circuit at the front center and the rear center.
The rear side connectors 11b and 12b are integrally provided, and the rear side connector 11b of the unit 11 is connected to the front side connector 12f of the unit 12. In addition, each unit 11,12
Is a mounting portion having screw holes 11 ₁ , 11 ₂ , 12 ₁ and 12 _{2 which} are integrally provided so as to project from the lower side to both sides, and the unit mounting board 13 has screw holes for unit mounting 13a ₁ , 13a ₂ and 13a _3. ...., 13b ₁ , 13b ₂ , 13
b ₃ ··· are provided in two rows. Unlike the motherboard, the unit mounting board 13 does not have an electronic circuit.
Units 11 and 12 used in the system are mounting parts 11 ₁ , 11 ₂ and 1
2 ₁ and 12 ₂ are attached to the unit mounting board 13 by screws with the unit mounting screw holes 13a ₁ , 13a ₂ , 13b ₁ and 13b ₂ .
Unit mounting board 13 has unit mounting screw holes 13a ₁ and 13a
_{There are more than 2} , 13a ₃ ..., 13b ₁ , 13b ₂ , 13b ₃ ... corresponding to the number of units used in the system when the system is installed, and only one unit is used in the system when the system is installed. It is possible to add a unit by attaching it to the. When the system is expanded by adding units, the additional units are mounted on the unit mounting board 13 in a line. Like the units 11 and 12, all the units mounted in a line on the unit mounting board 13 are integrally provided with a front side connector and a rear side connector at the front center and the rear center, respectively, and the unit mounting board 13 An attachment portion for screwing to is integrally provided by projecting from the lower side to both sides. The respective units are connected in cascade by connecting front and rear rear side connectors and front side connectors that are opposite to each other, and the outer connectors of the end units are connected to the outside.

[Effect of device]

As described above, according to the present invention, a plurality of units each having a pair of connectors on the front surface and the rear surface and a unit mounting member to which the plurality of units are detachably mounted are provided. Since an arbitrary number of units can be installed and these units can be connected by connectors, it is possible to add units to the unit installation member after installing the system at the time of system introduction, thus increasing the flexibility of system expansion. Can have
Moreover, the need for a motherboard is eliminated, and waste is reduced in terms of cost and space.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of the present invention, and FIG. 2 (a).
(B) is a perspective view showing each unit of the embodiment. 11,12 …… Unit, 11f, 12f11b, 12b …… Connector, 13
...... Unit mounting board.

Continuation of the front page (51) Int.Cl. ⁵ Identification number Office reference number FI technical display location H05K 7/12 D 7301-4E

Claims (1)

[Scope of utility model registration request] 1. A plurality of units each having a pair of connectors on a front surface and a rear surface, and a unit mounting member to which the plurality of units are detachably mounted, and an arbitrary number of units are mounted on the unit mounting member. A unit expansion device characterized in that units are attached and these units are connected by a connector.