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Title:
LIQUID SURFACE SENSOR
Document Type and Number:
WIPO Patent Application WO/2015/052873
Kind Code:
A1
Abstract:
 A liquid surface sensor (100) is provided with a case (10) fixed to a washer tank (90), and a float (30) attached to the case (10) so as to be moveable in the vertical direction (VD). The float (30) has a magnet (50). A reed switch axle (13) provided in the case (10) has housed therein a reed switch (40) switched from off to on depending on the proximity of the magnet (50). The reed switch axle (13) has a configuration to support the float (30) so as to be moveable up and down. A switch main body (43) of the reed switch (40) has formed therein a conductive film (46) extending from a reed (42) along the outer surface of the main body (43). The conductive film (46) transmits to the reed (42) a signal indicating whether the switch (44) is on or off.

Inventors:
SUZUKI, Naoto (C/O DENSO CORPORATION, 1-1 Showa-cho, Kariya-cit, Aichi 61, 〒4488661, JP)
Application Number:
JP2014/004620
Publication Date:
April 16, 2015
Filing Date:
September 09, 2014
Export Citation:
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Assignee:
DENSO CORPORATION (1-1 Showa-cho, Kariya-city Aichi, 61, 〒4488661, JP)
International Classes:
H01H35/18; G01F23/62
Foreign References:
JP2012173010A2012-09-10
JPS63101828U1988-07-02
JPS4997358U1974-08-22
Attorney, Agent or Firm:
KIN, Junhi (6th Floor, Takisada Bldg. 2-13-19, Nishiki, Naka-ku, Nagoya-cit, Aichi 03, 〒4600003, JP)
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