A urea sensor structure
A urea sensor and sensor technology, applied in the field of urea sensors, can solve problems such as unreasonable structure of the urea sensor, and achieve the effects of good sealing, improved service life and reasonable structure layout.
Active Publication Date: 2017-02-15
HEFEI BANGLI ELECTRONICS
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Problems solved by technology
[0003] The purpose of the present invention is to provide a urea sensor structure to solve the problem of unreasonable structure of the prior art urea sensor
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[0014] Such as Figure 1-Figure 6 shown. A urea sensor structure, comprising a sensor top seat 1, the top seat of the sensor 1 is connected with a urea suction nozzle 2, a urea return nozzle 3, and a pair of water interfaces 4 through ultrasonic welding, and the urea suction nozzle 2, the urea return nozzle The junction of the nozzle 3, the two water ports 4 and the sensor top base 1 is formed into a zigzag shape 5 respectively. The center of the bottom of the sensor top base 1 is welded with a vertical information tube 6 by laser welding. The bottom end of the information tube 6 is connected to a tray 7 and the information There is a plug 8 welded by laser at the bottom nozzle of the tube 6 connected to the tray 7, a float 9 is slidably installed on the information tube 6, and two tube ends of a spiral tube 10 are connected to the bottom of the sensor top base 1, and the two tubes of the spiral tube 10 The mouths are respectively connected with the two water interfaces 4 in ...
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The invention discloses a urea sensor structure. The urea sensor structure comprises a sensor top seat, wherein the sensor top seat is connected with a urea suction pipe orifice, a urea returning pipe orifice and a pair of water interfaces, an information tube is welded at the center of the bottom of the sensor top seat, the bottom of the information tube is connected with a tray, an end cap is welded in a pipe orifice at the bottom of the information tube, a floater is installed on the information tube in sliding mode, the bottom of the sensor top seat is connected with two pipe ends of a spiral pipe, two pipe orifices of the spiral pipe are respectively communicated with the two water interfaces, the lower portion of the pipe body of the spiral pipe forms a vertical spiral shape with the information tube as the center shaft, the bottom of the sensor top seat is further connected with a pair of urea pipes, the top ends of the two urea pipes are respectively communicated with the urea suction pipe orifice and the urea returning pipe orifice, a filter screen injection molding part is arranged in an annular flange on the edge of the tray, and a filter screen is sleeved on the filter screen injection molding part. The urea sensor structure is reasonable in structural configuration, stable and reliable, and good in tightness, and furthermore use life of a urea sensor is greatly improved.
Description
technical field [0001] The invention relates to the field of urea sensors, in particular to a urea sensor structure. Background technique [0002] The urea sensor is installed on the side of the vehicle frame, directly in contact with the external environment, and the working temperature is between -44°C and +85°C. The head shell of the urea sensor is exposed outside the urea tank, and has been affected by harsh environments such as rain and exposure for many years. The pipeline of the urea sensor has been in the urea tank for many years, which is highly corrosive. The urea sensor in the prior art has the problem of low service life due to its unreasonable structure. Contents of the invention [0003] The purpose of the present invention is to provide a urea sensor structure to solve the problem of unreasonable structure of the urea sensor in the prior art. [0004] In order to achieve the above object, the technical scheme adopted in the present invention is: [0005] ...
Claims
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IPC IPC(8): G01F23/30
Inventor 张肖康周守元黄万顺
Owner HEFEI BANGLI ELECTRONICS