Electronic component and the method of using it

• US 20040008492A1
• Filed: 05/15/2003
• Published: 01/15/2004
• Est. Priority Date: 05/20/2002
• Status: Active Grant

• Current Assignee: Omron Corporation
• Original Assignee: Omron Corporation
• Inventors: Mukai, Atsushi, Hosokawa, Hirofumi, Kishi, Takafumi, Kato, Shigeyuki, Yoneda, Gen, Surga, Toshimichi, Kido, Maakazu, Nagami, Yoshihiro, Takaishi, Akira
• Granted Patent: US 7,031,168 B2
• Time in Patent Office: Days
• US Class Current: 361/715
• CPC Class Codes: G05B 19/0421 Multiprocessor system

Abstract

Module substrates each having the functions of input, power supply, and output/communication corresponding to the required model are attached to a base substrate having shared bus wiring. Thus, a main CPU of an input module can discriminate the respective module substrates to perform the control operation corresponding to the model, thereby sharing the module substrates among different models.

Claims

1. An electronic device equipped with a plurality of substrates, comprising:

a base substrate which has a connection part and shared wiring connected to the connection part;

an attaching substrate which has a special circuit in accordance with a function thereof and which is attached to the connection part so as to connect the special circuit with the shared wiring; and

a control circuit which is mounted on either the base substrate or the attaching substrate, and which is connected to the shared wiring, wherein

the control circuit discriminates the attaching substrate attached to the connection part of the base substrate, thereby making the electronic device operate as a required model out of a plurality of models.

2. The electronic device according to claim 1, wherein

the connection part is a connector, and

the attaching substrate to be detachably attached to the connector is sharable among different models.

3. The electronic device according to claim 1, further comprising:

a case for housing the plurality of substrates, wherein

the plurality of models have the same size of case, the base substrate is shared among the plurality of models, and the control circuit is mounted on the attaching substrate.

4. The electronic device according to claim 1, further comprising:

a case for housing the plurality of substrates, wherein

the plurality of models include a model having a different size of case, and the attaching substrate has a size corresponding to the model having the smallest case.

5. The electronic device according to claim 1, comprising:

an attaching substrate for input, an attaching substrate for power supply, and an attaching substrate for output which are provided with an input circuit, a power-supply circuit, and an output circuit, respectively, as the special circuit.

6. The electronic device according to claim 1, wherein

the connection part of the base substrate is assigned a necessary attaching substrate to be attached according to the model, and

the electronic device further comprises a erroneous attachment prevention means for allowing the necessary attaching substrate to be attached to the connection part while preventing an attaching substrate other than the necessary attaching substrate from being attached.

7. The electronic device according to claim 6, wherein

the erroneous attachment prevention means prevents an attaching substrate other than the necessary attaching substrate from being attached by causing a side of the attaching substrate to bring into contact with an electronic component mounted on the base substrate or allows the necessary attaching substrate to be attached by not causing the contact.

8. An electronic device equipped with a plurality of substrates, comprising:

a base substrate which has a plurality of connectors and shared wiring connected to the connectors;

a plurality of attaching substrates which have respective special circuits in accordance with functions thereof and which are detachably attached to the connectors so as to connect the special circuits with the shared wiring; and

a control circuit which is mounted on either the base substrate or the attaching substrates, and which is connected to the shared wiring, wherein

the control circuit discriminates the attaching substrates attached to the connectors of the base substrate, thereby making the electronic device perform temperature regulating operation as a required model out of a plurality of models.

10. The electronic device according to claim 8 further comprising:

a case for housing the plurality of substrates, wherein

the base substrate is housed in the case along a front surface of the case and is provided with an operation part and a display part, and

the attaching substrates are shareable among different models.

11. The electronic device according to claim 10, wherein

the plurality of attaching substrates include an attaching substrate which is sharable between the model performing the temperature regulating operation and the model performing the measurement processing operation, and

the control circuit which makes the model perform the temperature regulating operation and the control circuit which makes the model perform the measurement processing operation are mounted on different attaching substrates.

12. The electronic device according to claim 10, wherein

the plurality of models include a model having a different size of case, and the attaching substrates have a size corresponding to the model having the smallest case.

13. The electronic device according to claim 10, comprising

an attaching substrate for input, an attaching substrate for power supply, and an attaching substrate for output which are provided with an input circuit, a power-supply circuit, and an output circuit, respectively, as the special circuits.

14. The electronic device according to claim 10, wherein

the connectors of the base substrate are assigned necessary attaching substrates to be attached according to the model, and

the electronic device further comprises erroneous attachment prevention means for allowing the necessary attaching substrates to be attached to the connectors while preventing attaching substrates other than the necessary attaching substrates from being attached.

15. The electronic device of claim 14, wherein

the erroneous attachment prevention means prevents the attaching substrates other than the necessary attaching substrates from being attached by causing a side of each the attaching substrates to bring into contact with an electronic component mounted on the base substrate or allows the necessary attaching substrates to be attached by not causing the contact.

9. An electronic device equipped with a plurality of substrates, comprising:

a base substrate which has a plurality of connectors and shared wiring connected to the connectors;

a plurality of attaching substrates which have respective special circuits in accordance with functions thereof and which are detachably attached to the connectors so as to connect the special circuits with the shared wiring; and

a control circuit which is mounted on either the base substrate or the attaching substrates, and which is connected to the shared wiring, wherein

the control circuit discriminates the attaching substrates attached to the connectors of the base substrate, thereby making the electronic device perform measurement processing operation as a required model out of a plurality of models.

16. A method for using an electronic device comprising:

a base substrate which has a connection part and shared wiring connected to the connection part;

an attaching substrate which has a special circuit in accordance with a function thereof and which is attached to the connection part so as to connect the special circuit with the shared wiring; and

a control circuit which is mounted on either the base substrate or the attaching substrate, and which is connected to the shared wiring, the control circuit discriminating the attaching substrate attached to the connection part of the base substrate, thereby making the electronic device operate as a required model out of a plurality of models, the method comprising the steps of;

selecting the attaching substrate from a plurality of attaching substrates having different functions from each other; and

attaching the selected attaching substrate to the connection part of the base substrate so as to use the electronic device as the required model.