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A nitrogen oxygen sensor

A nitrogen and oxygen sensor and dust filter technology, applied in the sensor field, can solve problems such as affecting the detection ability of the probe and blockage of the air inlet, and achieve the effect of improving the detection effect, increasing the intake air volume, and reducing the frequency.

Active Publication Date: 2022-08-05
华智通科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the above-mentioned related technologies, the inventor believes that there are the following defects: there are solid particles in the exhaust gas emitted by the engine, and the air inlet of the probe inserted into the exhaust pipe is easily blocked by solid particles, thereby affecting the detection ability of the probe. Therefore, the user It is often necessary to disassemble the probe and clean the probe, which needs to be improved

Method used

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  • A nitrogen oxygen sensor
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Embodiment Construction

[0040] Attached to the following Figure 1-5 This application will be described in further detail.

[0041] The embodiment of the present application discloses a nitrogen and oxygen sensor. refer to figure 1 , figure 2 , the nitrogen and oxygen sensor includes a sensor body 1, a probe 2 for extending into the exhaust pipe of the automobile, a cable 3 connecting the probe 2 and the sensor body 1, a dust filter 4 covered on the probe 2, and a resistor covered on the dust filter The dust cover 5 , the rotating mechanism 6 for driving the dust filter 4 to rotate, and two sets of self-cleaning mechanisms 7 for cleaning the dust filter 4 .

[0042] refer to figure 1 , figure 2 , the probe 2 includes a hexagonal block 21, a threaded block 22 and a detection head cover 23 that are fixedly connected in sequence. The hexagonal block 21 is used for clamping a wrench, the threaded block 22 is used for connecting with the exhaust pipe of the automobile, and the detection head cover ...

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Abstract

The present application discloses a nitrogen and oxygen sensor, which includes a probe, at least two air inlets are opened on the probe, a dust filter is provided on the probe, and a dust filter is provided on the dust filter, and the dust filter is provided with a dust filter. The net is rotatably connected to the dust hood, and the dust hood is provided with at least two exhaust ports. The dust filter is used to shield the air inlet and the exhaust port. The dust filter is provided with a rotating mechanism for driving the rotation of the dust filter. . The present application has the effect of reducing the frequency with which the user cleans the probe.

Description

technical field [0001] The present application relates to the field of sensors, in particular to a nitrogen and oxygen sensor. Background technique [0002] Nitrogen and oxygen sensor is a crucial core component that must be configured in SCR system. It adopts a special structure and uses electrochemical principle to monitor and feedback the content of nitrogen oxides in automobile exhaust in real time, so that automobile exhaust emission meets the standard. [0003] In the related art, the nitrogen and oxygen sensor includes a probe, and an air inlet for air intake is opened on the probe. The probe needs to be installed on the exhaust pipe of the car, and the end of the probe needs to be extended into the exhaust pipe to detect the nitrogen and oxygen concentration in the engine exhaust gas in the exhaust pipe. [0004] In view of the above-mentioned related technologies, the inventor believes that there are the following defects: there are solid particles in the exhaust g...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D46/24B01D46/26B01D46/681F01N11/00
CPCB01D46/2411B01D46/26F01N11/00F01N2560/026Y02T10/40
Inventor 杨振宇安敬前丁杰
Owner 华智通科技有限公司