Device for detecting temperature of cooling liquid

Abstract

A device for detecting a temperature of a cooling liquid includes a cooling section having a cooling liquid flowing therein, a temperature sensor which detects a temperature of the cooling liquid, and a bracket, which supports the temperature sensor, is braze-bonded to the cooling section, and transfers heat of the cooling liquid to the temperature sensor. The bracket has formed therein a slit that communicates between the outside and a bonding surface bonded to the cooling section. With this configuration, deterioration of heat conductivity due to the braze-bonding can be suppressed.

1 . A device for detecting a temperature of a cooling liquid, the device comprising:
 a cooling section in which a cooling liquid flows;   a temperature sensor that detects a temperature of the cooling liquid; and   a bracket that supports the temperature sensor and is braze-bonded to the cooling section, the bracket transferring heat of the cooling liquid to the temperature sensor,   wherein a communication portion for communicating between a bonding surface of the bracket that is bonded to the cooling section and the outside is formed in the bracket,   the bracket includes one end portion, which is a region that is bonded to the cooling section, and another end portion which is a region on which the temperature sensor is provided, and   a thickness of the one end portion is smaller than a thickness of the other end portion.   
     
     
         2 . (canceled) 
     
     
         3 . The device for detecting a temperature of a cooling liquid according to  claim 1 , wherein
 the communication portion is slits that are formed on the bonding surface of the bracket.   
     
     
         4 . The device for detecting a temperature of a cooling liquid according to  claim 3 , wherein
 the slits are formed at intervals of 3 mm or less.   
     
     
         5 . The device for detecting a temperature of a cooling liquid according to  claim 1 , wherein
 the communication portion is a through hole that is formed to pass through the bonding surface of the bracket and a surface that is opposite to the bonding surface.   
     
     
         6 . The device for detecting a temperature of a cooling liquid according to  claim 1 , wherein
 the cooling section is mounted on electrical equipment for cooling a heating element of the electrical equipment.