Pressure sensor for detecting collision
First Claim
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1. A pressure sensor for detecting a collision of a vehicle, comprising:
- a detecting part for detecting a pressure;
a housing for housing the detecting part therein, the housing located in a hollow body defined in a part of the vehicle, whereinthe housing is formed with a passage hole for allowing communication between an inside of the housing and an inside of the hollow body,the passage hole has a first end adjacent to the detecting part and a second end opposite to the first end, the second end is located at a position lower than the first end and the second end is open to the inside of the hollow body, andthe passage hole defines a passage area that increases from the first end toward a middle portion of the passage hole and increases further from the middle portion to the second end, the middle portion being located between the first and second ends.
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Abstract
A pressure sensor, which is mounted on a vehicle for detecting a collision, has a detecting part for detecting a change of pressure and a housing for housing the detecting part therein. The housing is located in a hollow body defined in a part of the vehicle. The housing forms a passage hole for allowing communication between an inside of the housing and the hollow body. The passage hole has a first end opening adjacent to the detecting part and a second end opposite to the first end. The second end is located lower than the first end. The passage hole defines a passage area that increases from the first end toward the second end.
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Citations
20 Claims
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1. A pressure sensor for detecting a collision of a vehicle, comprising:
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a detecting part for detecting a pressure; a housing for housing the detecting part therein, the housing located in a hollow body defined in a part of the vehicle, wherein the housing is formed with a passage hole for allowing communication between an inside of the housing and an inside of the hollow body, the passage hole has a first end adjacent to the detecting part and a second end opposite to the first end, the second end is located at a position lower than the first end and the second end is open to the inside of the hollow body, and the passage hole defines a passage area that increases from the first end toward a middle portion of the passage hole and increases further from the middle portion to the second end, the middle portion being located between the first and second ends. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A pressure sensor for detecting a collision of a vehicle, comprising:
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a detecting part for detecting a pressure; and a housing including a housing body portion disposed in an inside of a hollow body of a part of the vehicle, wherein the detecting part is housed in an inside of the housing body portion, the housing further including a passage hole that allows communication between the inside of the housing body portion and the inside of the hollow body, the passage hole includes a first end that is open to the inside of the housing body portion and a second end that is open to the inside of the hollow body, the second end is located lower than the first end and is open in a downward direction, and a cross-sectional area of the passage hole continuously increases from the first end toward the second end. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A pressure sensor for detecting a collision of a vehicle, the pressure sensor comprising:
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a housing located in a hollow body defined by the vehicle; a pressure detector disposed within a chamber defined by the housing;
whereinthe housing defines a passage hole extending between the chamber defined by the housing and an inside of the hollow body; the passage hole has a first end open to the chamber defined by the housing and a second end open to the inside of the hollow body, the second end being below the first end; and the passage hole has a cross-sectional area that continuously increases from the first end to the second end. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification