A urea sensor device

Abstract

This utility model discloses a urea sensor device, belonging to the field of sensor technology. It includes a sensor top base, in which a urea suction port, a urea return port, a first water interface, and a second water interface are connected. A stainless steel tube is connected to the center of the bottom of the sensor top base, and an ultrasonic probe, an electron tube, and a probe connecting wire are installed in the stainless steel tube. Using this device, the ultrasonic probe, electron tube, and probe connecting wire are integrated into the stainless steel tube, avoiding cross-contamination and making it convenient for operators to use.

Description

Technical Field

[0001] This utility model relates to the field of sensor technology, and in particular to a urea sensor device. Background Technology

[0002] In diesel vehicle exhaust treatment systems, urea sensors are core components for monitoring parameters such as the level and concentration of urea solution in the urea tank. Their performance directly affects the working efficiency of the selective catalytic reduction (SCR) system, and thus relates to whether exhaust emissions meet standards. However, current urea sensor devices have many technical defects in practical applications, making it difficult to meet the requirements for high-precision and high-stability detection.

[0003] Currently, the components and wiring in urea sensor devices are often intertwined and messy, making them difficult for operators to use. Therefore, there is an urgent need to design a urea sensor device to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a urea sensor device to solve the problem that the components and wiring in existing urea sensor devices are usually intertwined and messy, which makes it difficult for operators to use.

[0005] To solve the above technical problems, this utility model provides a urea sensor device, including a sensor top base, wherein a urea suction port, a urea return port, a first water interface and a second water interface are connected in the sensor top base, and a stainless steel pipe is connected to the center of the bottom of the sensor top base.

[0006] An ultrasonic probe, an electron tube, and probe connection wires are installed in the stainless steel tube.

[0007] As a further improvement to the above technical solution:

[0008] Optionally, the sensor top mount is also connected to a first plug-in connector and a second plug-in connector.

[0009] Optionally, a spiral tube is connected to the bottom of the sensor top seat, and the two ends of the spiral tube are respectively connected to the first water interface and the second water interface in the sensor top seat.

[0010] Optionally, the bottom of the sensor top seat is also connected to two urea tubes, and the top ports of the two urea tubes are respectively connected to the urea suction port and the urea return port in the sensor top seat.

[0011] In the urea sensor device provided by this utility model, the sensor top base is connected to a urea suction port, a urea return port, a first water interface, and a second water interface. A stainless steel tube is connected to the center of the bottom of the sensor top base, and an ultrasonic probe, an electron tube, and a probe connecting wire are installed in the stainless steel tube. Using this device, the ultrasonic probe, electron tube, and probe connecting wire are integrated into the stainless steel tube, avoiding cross-contamination and making it convenient for operators to use. Attached Figure Description

[0012] Figure 1 This is a front view of the urea sensor device provided by this utility model;

[0013] Figure 2 This is a side view of the urea sensor device provided by this utility model;

[0014] Figure 3 This is a top view of the urea sensor device provided by this utility model. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0017] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0018] This utility model provides a urea sensor device, the structure of which is as follows: Figure 1 , Figure 2 as well as Figure 3As shown, the device includes a sensor top base 1, which is connected to a urea suction port 2, a urea return port 3, a first water interface 4, and a second water interface 5. A stainless steel tube 8 is connected to the center of the bottom of the sensor top base 1, and an ultrasonic probe, an electron tube, and probe connecting wires are installed in the stainless steel tube 8. By using a urea sensor device, the ultrasonic probe, electron tube, and probe connecting wires are integrated into the stainless steel tube, avoiding cross-contamination and facilitating operation.

[0019] Furthermore, the sensor top mount 1 is also connected to a first plug-in connector 6 and a second plug-in connector 7.

[0020] Furthermore, a spiral tube 9 is connected to the bottom of the sensor top seat 1, and the two ends of the spiral tube 9 are respectively connected to the first water interface 4 and the second water interface 5 in the sensor top seat 1.

[0021] Furthermore, two urea tubes 10 are connected to the bottom of the sensor top seat 1. The top ports of the two urea tubes 10 are respectively connected to the urea suction port 2 and the urea return port 3 in the sensor top seat 1.

[0022] Operating procedures

[0023] During installation, fix the sensor top mount 1 in the designated position of the urea tank, ensuring that all interfaces are oriented for easy pipe connection. Connect the urea suction port 2 to the outlet of the urea tank through a pipe, and connect the urea return port 3 to the return port of the urea tank to form a urea circulation path; connect the first water interface 4 to the external coolant inlet pipe, and the second water interface 5 to the coolant return pipe, so that the coolant circulates through the spiral tube 9, which is used to regulate the sensor's operating temperature or to clean urea crystals.

[0024] During circuit connection, the sensor is connected to the vehicle control system through the first plug-in connector 6 and the second plug-in connector 7. The first plug-in connector 6 is used to transmit the detection signal of the ultrasonic probe, and the second plug-in connector 7 is used to connect the power supply and control circuit of the electron tube to ensure stable signal and power transmission.

[0025] During operation, the ultrasonic probe in the stainless steel tube 8 is inserted into the urea solution to emit and receive ultrasonic signals. After processing by the electronic tube, the signals of parameters such as liquid level and concentration are transmitted to the vehicle control system via the probe connection line. The urea suction port 2 draws the urea solution into the sensor, and after detection, it flows back to the urea tank through the urea return port 3 to ensure the real-time nature of the test sample. The coolant circulation in the spiral tube 9 can prevent urea crystallization from clogging the stainless steel tube 8 at low temperatures, or reduce the sensor temperature at high temperatures to ensure a stable detection environment.

[0026] Beneficial effects

[0027] This device effectively solves the problem of messy and intertwined components and circuits in traditional urea sensors. The ultrasonic probe, electron tube, and probe connection wires are highly integrated through the stainless steel tube 8, making it convenient for operators to use. Moreover, the sensor top base 1 integrates the urea suction port 2, the urea return port 3, the first water interface 4, the second water interface 5, the first plug connector 6, and the second plug connector 7, which centrally arranges the pipeline and circuit interfaces, greatly simplifying the overall structure, reducing the installation space occupied, and making the pipeline connection orderly, reducing the risk of leakage, and facilitating standardized production and assembly.

[0028] The above description is only a description of the preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model in any way. Any changes or modifications made by those skilled in the art based on the above disclosure shall fall within the protection scope of the claims.

Claims

1. A urea sensor device, characterized in that, Includes a sensor top base (1), in which a urea suction port (2), a urea return port (3), a first water interface (4) and a second water interface (5) are connected, and a stainless steel pipe (8) is connected to the center of the bottom of the sensor top base (1); An ultrasonic probe, an electron tube, and a probe connection wire are installed in the stainless steel tube (8).

2. The urea sensor device as described in claim 1, characterized in that, The sensor top mount (1) is also connected to a first plug-in connector (6) and a second plug-in connector (7).

3. The urea sensor device as described in claim 1, characterized in that, The bottom of the sensor top seat (1) is connected to a spiral tube (9), and the two ends of the spiral tube (9) are respectively connected to the first water interface (4) and the second water interface (5) in the sensor top seat (1).

4. The urea sensor device as described in claim 1, characterized in that, The bottom of the sensor top seat (1) is also connected to two urea tubes (10), and the top ports of the two urea tubes (10) are respectively connected to the urea suction port (2) and the urea return port (3) in the sensor top seat (1).

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