Electronic apparatus with sensor

Assignee: Seiko Instruments Inc.

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Quick Facts

Patent No.: US 8,291,771
App. No.: 12/932,447
Granted: Oct 23, 2012
Kind: B2

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Abstract

An electronic apparatus with a sensor has an exterior case, a sensor unit arranged inside the exterior case for detecting pressure, and a sensor holding frame arranged between the exterior case and the sensor unit for mounting the sensor unit on the exterior case. The sensor holding frame includes a sensor accommodating portion which accommodates the sensor unit and which has a pressure chamber into which the pressure is taken in front of a sensor body of the sensor unit, and a pressure introducing passage through which pressure is introduced into the pressure chamber from outside the exterior case. A center axis of the sensor accommodating portion and a center axis of the pressure introducing passage are displaced from each other.

Claims (35)

1. An electronic apparatus with a sensor comprising:

an exterior case;

a sensor unit which is arranged in the inside of the exterior case and detects pressure; and

a sensor holding frame which is arranged between the exterior case and the sensor unit, and is provided for mounting the sensor unit on the exterior case, wherein

the sensor holding frame includes:

a sensor accommodating portion which accommodates the sensor unit and is provided with a pressure chamber into which the pressure is taken in front of a detection part of the sensor unit; and

a pressure introducing passage through which pressure is introduced into the pressure chamber from the outside of the exterior case, and

a center axis of the sensor accommodating portion and a center axis of the pressure introducing passage are displaced from each other.

2. An electronic apparatus with a sensor according to claim 1 , wherein the center axis of the pressure introducing passage is offset from the center axis of the sensor accommodating portion.

3. An electronic apparatus with a sensor according to claim 1 , wherein the center axis of the pressure introducing passage intersects with the center axis of the sensor accommodating portion.

4. An electronic apparatus with a sensor according to claim 1 , wherein the sensor holding frame is formed using a resin, and a reinforcing tube for enhancing the rigidity of the pressure introducing passage is mounted on an inner peripheral surface of the pressure introducing passage.

5. An electronic apparatus with a sensor according to claim 2 , wherein the sensor holding frame is formed using a resin, and a reinforcing tube for enhancing the rigidity of the pressure introducing passage is mounted on an inner peripheral surface of the pressure introducing passage.

6. An electronic apparatus with a sensor according to claim 3 , wherein the sensor holding frame is formed using a resin, and a reinforcing tube for enhancing the rigidity of the pressure introducing passage is mounted on an inner peripheral surface of the pressure introducing passage.

7. An electronic apparatus with a sensor according to claim 1 , wherein a cover in which a plurality of small-diameter holes are formed in a penetrating manner is provided at a position corresponding to an opening end of the pressure introducing passage in the exterior case.

8. An electronic apparatus with a sensor according to claim 2 , wherein a cover in which a plurality of small-diameter holes are formed in a penetrating manner is provided at a position corresponding to an opening end of the pressure introducing passage in the exterior case.

9. An electronic apparatus with a sensor according to claim 3 , wherein a cover in which a plurality of small-diameter holes are formed in a penetrating manner is provided at a position corresponding to an opening end of the pressure introducing passage in the exterior case.

10. An electronic apparatus with a sensor according to claim 4 , wherein a cover in which a plurality of small-diameter holes are formed in a penetrating manner is provided at a position corresponding to an opening end of the pressure introducing passage in the exterior case.

11. An electronic apparatus with a sensor according to claim 5 , wherein a cover in which a plurality of small-diameter holes are formed in a penetrating manner is provided at a position corresponding to an opening end of the pressure introducing passage in the exterior case.

12. An electronic apparatus with a sensor according to claim 6 , wherein a cover in which a plurality of small-diameter holes are formed in a penetrating manner is provided at a position corresponding to an opening end of the pressure introducing passage in the exterior case.

13. An electronic apparatus with a sensor according to claim 1 , wherein a timepiece movement is arranged in the inside of the exterior case, and