发明名称 |
FLOW SENSOR AND METHOD FOR PRODUCING RESIN STRUCTURE |
摘要 |
The purpose of the present invention is to provide a flow sensor that makes it possible to detect temperature abnormalities that the flow sensor has been exposed to and the time history of the flow sensor in a high-temperature environment from an externally visible cover material and that uses a cover material for which the laser welding quality can be guaranteed through visual inspection when the sensor is delivered as a product and even if the sensor is used in an abnormal state. A flow sensor provided with a housing, a cover, a circuit chamber that houses a wiring portion sealed between the housing and the cover, and an auxiliary passage through which the liquid to be sensed flows, wherein: a joint portion formed on the housing and a joint portion formed on the inner surface of the cover are joined together through the laser welding; the main material of the cover is a crystalline resin; the cover includes an amorphous alloy; and the cover is made to have a natural color. |
申请公布号 |
EP2990769(A1) |
申请公布日期 |
2016.03.02 |
申请号 |
EP20140787725 |
申请日期 |
2014.02.07 |
申请人 |
HITACHI AUTOMOTIVE SYSTEMS, LTD. |
发明人 |
ARAI, SATOSHI;TSUNODA, SHIGEHARU;TASHIRO, SHINOBU;UENODAN, AKIRA;IGARASHI, SHINYA |
分类号 |
G01F1/684;B29C65/00;B29C65/16;B29C65/48;B29C65/82;G01F1/68 |
主分类号 |
G01F1/684 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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