JP2822383B2 - Electronic circuit device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION The present invention relates to an electronic circuit device, and more particularly to a plurality of card boards and a common motherboard housed in a housing such as a shield case, and mounted on the motherboard. The present invention relates to an electronic circuit device in which a plurality of card boards are connected to each other in a housing by a connector.

[Summary of the Invention]

The present invention provides an electronic circuit device equipped with a large number of card boards, in which an auxiliary connector is provided on a motherboard or a card board, and a card board disposed outside a housing such as a shield case is connected to the card via the auxiliary connector. The card board can be connected to an electronic circuit device, so that the card board can be easily repaired and inspected without using a complicated and expensive extension board.

[Conventional technology]

When a complicated circuit is constituted by a large number of ICs and various circuit components, an electronic circuit device as shown in FIG. 10 has been conventionally used. In this device, a large number of card boards 2 are arranged in parallel with each other in a shield case 1 constituting a housing. And a large number of card boards 2 are connected to each other via a motherboard 3,
A predetermined circuit is formed.

In such a circuit, when an arbitrary card board 2 is inspected or repaired, the extension board 5 shown in FIG. 10 is used. The extension board 5 is inserted into the position, and connected to the motherboard 3 by the connector 4.
The card board 2 is connected to the front end portion of the mother board 3 via a connector, whereby the card board 2 is connected outside the housing 1.

[Problems to be solved by the invention]

If such an extension board 5 is used, the cost of parts increases, which is economically disadvantageous. Further, there is a possibility that the performance of the circuit is degraded due to the extension pattern provided on the extension board 5. Further, at the time of repair or inspection, the extension board 5 must be replaced according to the change of the card board to be inspected, which has a drawback that the operation is troublesome.

The present invention has been made in view of such problems, and without using an extension board, moreover, to connect in a state where an arbitrary card board is arranged outside the housing,
An object of the present invention is to provide an electronic circuit device which can improve the workability of repair and inspection.

[Means for solving the problem]

The present invention relates to an electronic circuit device in which a plurality of card boards and a common motherboard are housed in a housing, and the plurality of card boards are connected to each other in the housing by a connector mounted on the motherboard. An opening is formed in a side plate of a housing parallel to the card board, and an end of the motherboard is protruded to the outside of the housing through the opening, and an end of the motherboard protruded to the outside of the housing. An auxiliary connector is provided on a surface on which the connector is mounted, and the auxiliary connector is connected to a card board disposed outside a side plate of the housing where the opening is formed. The present invention relates to an electronic circuit device.

Another invention is an electronic circuit device in which a plurality of card boards and a common motherboard are housed in a housing, and the plurality of card boards are connected to each other in the housing by a connector mounted on the motherboard. The electronic circuit device according to claim 1, wherein an auxiliary connector is provided on the card board, and the auxiliary connector is connected to a card board arranged outside the housing by the auxiliary connector.

[Action]

Therefore, according to the present invention or another invention, by removing one of a plurality of card boards in a housing and connecting the card board to an auxiliary connector provided on a motherboard or another card board. In this state, the card board is connected outside the housing, and in this state, the card board can be repaired and inspected immediately.

〔Example〕

A first embodiment will be described with reference to FIGS. The electronic circuit device according to the first embodiment includes a shield case 10 formed of a rectangular parallelepiped housing, in which a large number of card boards 11 and motherboards 12 are arranged. Connectors 13 are mounted on the motherboard 12 at a predetermined pitch.
Thus, the card board 11 and the motherboard 12 are connected to each other, whereby a large number of card boards 11 are connected to each other. That is, a large number of wiring patterns 14 are formed on the motherboard 12 in parallel with each other.
Corresponding pins of the plurality of connectors 13 mounted above are connected so as to be conductive with each other.

In such a circuit device, an opening 15 is formed on the side surface side of the casing 10 forming the shield case,
The opening 15 extends the end of the motherboard 12 to the outside of the shield case 10. And motherboard 12
An auxiliary connector 16 is mounted on a portion protruding from the shield case 10 on the distal end side of the connector. Therefore, when any card board 11 in the shield case 10 is inspected and repaired, the card board 11 is disconnected from the corresponding connector 13 of the mother board 12 and, as shown in FIGS. Is connected to the receptacle of the auxiliary connector 16 provided at the end of.

In general, a connector 13 is provided on the motherboard 12 so that a plurality of card boards 11 can be mounted. Respective terminals of the receptacles are connected by wiring patterns 14 having the same pin number. Therefore shield case 10
The structure is such that the front end of the motherboard 12 can protrude through the opening 15 on the side of the motherboard 12 as described above.
The provision of 16 allows the card board 11 to be directly coupled to the motherboard 12 outside the shield case 10. This makes it possible to repair or check the card board 11 connected to the auxiliary connector 16 without using a dedicated extension board.

As described above, according to the electronic circuit device of the present embodiment, when repairing or inspecting the card board 11, the extension board having the extension pattern is not required, so that the cost of parts can be reduced and the cost is economically advantageous. become. Further, a space for accommodating the extension board becomes unnecessary. Furthermore, since the card board 11 can be connected outside the housing 10 without using an extension board, performance degradation due to the extension pattern of the extension board is eliminated. Card board for repair or inspection 11
When changing the number of cards, only the card board 11 connected to the auxiliary connector 16 needs to be changed. At this time, it is not necessary to change the extension board, and the complexity of the operation can be reduced.

Next, a second embodiment will be described with reference to FIGS. 3 and 4. FIG. In the second embodiment, the structure of the auxiliary connector 16 in the first embodiment is changed. That is, in the first embodiment, an L-shaped auxiliary connector 16 is used, but an upright connector 16 is used in place of the L-shaped connector. It is designed to be mounted on a portion protruding from the opening 15 of the housing 10. Therefore, according to this embodiment, the card board 11 is disposed in parallel with the outer surface of the shield case 10 where the opening 15 is formed, and the motherboard 12 is connected via the auxiliary connector 16.
Will be connected. Therefore, this embodiment is suitable for use when the space on the side surface of the shield case 10 is small.

Next, a third embodiment will be described with reference to FIGS. 5, 6, and 7. FIG. In this embodiment, an auxiliary connector 16 for a card board 11 connected outside the shield case 10 for inspection or repair is connected to another card board 11.
This is mounted on a card board 11 arranged on the side surface of the shield case 10. That is, the auxiliary connector 16 is mounted near the connector 13 of the card board 11 arranged on the side surface of the shield case 10, and each pin of the auxiliary connector 16 is connected to the pin of the connector 13 by the wiring pattern 14. It is. Further, the card board 11 is provided with another connector 20 on the tip side. The connector 20 is for transmitting and receiving power and signals to and from an external circuit.

As described above, in the present embodiment, the connectors 13 and 16 are mounted on the card board 11 arranged on the side surface of the housing 10. Connector 13 is on this card board 11
And the motherboard 12, and the shape, the number of poles, and the like can be arbitrarily set. Also motherboard 12
All the signal lines and power supply lines wired above pass through the connector 13. Furthermore, all of these signal or power supply lines are connected to the auxiliary connector 16 by the wiring pattern 14.
The appropriate circuit elements and ICs are mounted first, and connected to the connector 20 as necessary. The connector 20 supplies necessary power and signals to each card board 11.

In such an embodiment, any card board 11
When inspecting the card board, remove the card board 11 from the connector 13 of the motherboard 12 and pass the card board 11 on the side of the shield case 10 through the opening 15 of the housing 10.
Connect to 11 auxiliary connector 16. With such a structure, inspection and repair can be performed without increasing the size of the motherboard 12 and the shield case 10 and without using an extension board. This embodiment is particularly useful when it is desired to provide a filter or a power regulator between the motherboard 12 and a signal supplied from the outside or a power line. If there is no need to shield the card board 11 having the auxiliary connector 16, only the card board 11 having the auxiliary connector 16 may be arranged outside the shield case 10.

Next, a fourth embodiment will be described with reference to FIGS. In this embodiment, an arbitrary card board 11 housed in a shield case 10, for example, a front end of a card board 11 on a side surface of the shield case 10 and a mother board 12
The auxiliary connector 16 is provided at a position opposite to the position where the receptacle of the connector 13 connected to the connector 13 is provided. Further, a connector 20 for supplying signals and power is mounted on the upper end side of the card board 11. The mounting position does not necessarily have to be the position shown in the figure, and can be changed arbitrarily.

According to such an embodiment, the card board 11 for performing the repair and inspection is withdrawn from the corresponding connector 13 and connected to the auxiliary connector 16 of the card board 11 on the side surface, whereby the shield case It becomes possible to make the connection state outside of 10. The card board 11 having the auxiliary connector 16 is supplied with a signal or power by a connector 20 disposed facing the opening 21. Therefore, also in this embodiment, it is possible to connect the card board 11 outside the housing 10 without using the extension board, thereby improving the workability of inspection or repair.

〔The invention's effect〕

As described above, in the present invention, an auxiliary connector is provided on a motherboard or a card board, and the card board arranged outside the housing is connected by the auxiliary connector. Therefore, it is possible to electrically connect a card board arranged outside the housing without using an extension board, thereby improving workability of inspection or repair, and omitting the extension board to make parts. Cost and storage space can be saved. Also, by preventing performance degradation due to the extension pattern,
A more accurate inspection will be performed.

In particular, an opening is formed in the side plate of the housing parallel to the card board, the end of the motherboard is projected outside the housing through the opening, and the connector is mounted on the end protruding outside the housing of the motherboard. According to the configuration in which the auxiliary connector is provided on the surface that is connected to the card board arranged outside the side plate where the opening of the housing is formed by the auxiliary connector, the end of the motherboard is connected to the end of the housing. By protruding outside through an opening formed in the side plate and providing an auxiliary connector at the end of the motherboard, it is possible to electrically connect to a card board arranged outside the housing. Therefore, the card board can be inspected or repaired without any need for an extension board. Moreover, since the auxiliary connector is provided at the end of the motherboard and on the surface where the connector is mounted, simply lengthen the motherboard and connect the auxiliary connector so that it is connected to the tip of the wiring pattern It only needs to be installed and no special motherboard is required.

Further, according to the configuration in which the card board is provided with the auxiliary connector and the auxiliary connector is connected to the card board arranged outside the housing, the card board provided with the auxiliary connector functions as an extension board. Therefore, without using an extension board, the card board can also be used as an extension board so that it can be electrically connected to the card board arranged outside the housing for inspection or repair. Become. At this time, the length of the wiring pattern can be adjusted depending on the position of the auxiliary connector.

[Brief description of the drawings]

FIG. 1 is an external perspective view showing an electronic circuit device according to a first embodiment of the present invention, FIG. 2 is a plan view of the same, FIG. 3 is an external perspective view of the electronic circuit device according to the second embodiment, FIG. FIG. 5 is a plan view of the same, FIG. 5 is an external perspective view of an electronic circuit device of a third embodiment, FIG. 6 is a front view of a card board having an auxiliary connector, and FIG. 7 is a plan view of the device of this embodiment. FIG. 8 is an external perspective view of an electronic circuit device according to a fourth embodiment, FIG. 9 is a plan view of the same, and FIG. 10 is an external perspective view of a conventional electronic circuit device. The names of the main parts in the drawings are as follows. 10 Shield case (housing) 11 Card board 12 Mother board 13 Connector 14 Wiring pattern 15 Opening 16 Auxiliary connector (receptacle) 17 Connector

Claims (4)

(57) [Claims] 1. An electronic circuit device in which a plurality of card boards and a common motherboard are housed in a housing, and the plurality of card boards are connected to each other in the housing by a connector mounted on the motherboard. An opening is formed in a side plate of a housing parallel to the card board,
An end of the motherboard is protruded outside the housing through the opening, and an auxiliary connector is provided on a surface of the motherboard protruding outside the housing and on which the connector is mounted, An electronic circuit device, wherein an auxiliary connector is connected to a card board disposed outside a side plate of the housing where the opening is formed. 2. An electronic circuit device, wherein a plurality of card boards and a common motherboard are housed in a housing, and the plurality of card boards are connected to each other in the housing by a connector mounted on the motherboard. 3. The electronic circuit device according to claim 1, wherein an auxiliary connector is provided on the card board, and the auxiliary connector is connected to a card board arranged outside the housing by the auxiliary connector. 3. An auxiliary connector is provided on a card board parallel to and adjacent to a side plate of the housing, an opening is provided in the side plate, and the housing is provided through the opening. 3. The electronic circuit device according to claim 2, wherein a card board disposed outside the housing is connected to be orthogonal to a card board disposed inside the housing adjacent to the side plate. 4. . 4. An auxiliary connector is provided at an end of the card board opposite to a portion connected to a connector of the motherboard, and is connected to a card board outside the housing in parallel with the card board. The electronic circuit device according to claim 2, wherein: