JPS608463Y2 - Electrical devices mounted on printed wiring boards - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an electrical device mounted on a printed wiring board (hereinafter sometimes simply referred to as a board).

Electrical devices constructed from printed wiring boards are often provided with external terminals for input/output, and it is desirable to have a large number of poles.

In order to improve the mounting density of electrical equipment and components mounted on a board, as well as to meet the demands for ease of maintenance and inspection and addition of optional functions, it is necessary to change from a two-dimensional arrangement on a board to a three-dimensional arrangement. Conversions and plug-in configurations of modules are possible.

When a CardEdge connector is provided on a board and a CardEdge printed wiring board (hereinafter referred to as a module board) is inserted into the connector, a problem arises in that the module board oscillates laterally due to external vibrations.

In order to prevent the free end of the module board (the end opposite to the connector connection part) from lateral wobbling, it is necessary to install a guide upright from the board or connector, but this requires an increase in the number of parts and This is not desirable in terms of space factor.

This invention was made in view of these points,
The purpose of this is to effectively utilize the space on the board and prevent the module board from wobbling laterally.

The present invention will be explained below based on the embodiments shown in the drawings.
In the figure, 1 is a storage case, 2 is a printed wiring board fixed to this case 1, and 3. is a terminal block attached to this board 2, 4 is a guide groove provided on the back side of the terminal block 8, 5 is a terminal pin that connects the terminal of the terminal block 3 and the printed wiring of the board 2,
6 is an alignment pin protruding from the back surface of the terminal block 3 to align the board 2 and the terminal block 3; 7 is a card edge attached on the board 2 adjacent to the back surface of the terminal block 3 at right angles; A connector 8 is a module board that is connected to the connector 7 and whose side edges are fitted into the guide groove 4 on the back of the terminal block 3. 9 is a case cover that also serves as a stop for the module board 8 to be removed. .

In this embodiment, one side edge of the module board 8 is guided and supported by the guide groove 4 of one terminal block, but when two terminal blocks are installed on the board 2, the guide groove 4 It is also possible to configure the rear surfaces of the terminal blocks provided with the grooves 4 to face each other with a required interval between them, so that both side edges of the module board 8 are fitted into the guide grooves of both terminal blocks, respectively.

As mentioned above, in the present invention, when mounting a terminal block and a plug-in type module board on a board, a guide groove for the module board is provided on the back of the terminal block, and the connector to which this module board is connected is connected to the terminal block. Since it is arranged perpendicular to the back surface, the guide groove acts as a guide when attaching the module board to the connector, making it easy to attach, and in the mounted state, the side edges of the module board are supported by the guide groove. Therefore, it is effective in eliminating lateral vibration of the module board without using a dedicated support component, and it greatly contributes to increasing the mounting density on the board.

[Brief explanation of drawings]

FIG. 1 is an exploded perspective view showing the structure of an embodiment of the present invention, FIG. 2 is a side view of the inside of the case, and FIG. 3 is an explanatory view showing the back side of the terminal block. 1: Case, 2: Board, 3: Terminal block, 4: Guide groove, 5:
Terminal pin, 6: Alignment pin, 7: Card edge connector, 8: Module board, 9: Case cover.

Claims (1)

[Scope of utility model registration request] In an electrical device having a structure in which a terminal block and a CardEdge printed wiring board are mounted on a printed wiring board, a guide groove into which a side edge of the CardEdge printed wiring board fits is formed on the back surface of the terminal block, and the printed wiring board is mounted on the printed wiring board. An electrical device mounted on a printed wiring board, characterized in that a CardEdge connector for the CardEdge printed wiring board is arranged adjacent to orthogonally on the back side of the terminal block.