Sensor sealing device

Abstract

The utility model discloses a sensor sealing device, which is applied to a sensor shell and is used for sealing a sensor, a rotor is rotatably arranged at the center of the sensor shell, and a pressure sensor with a pressure chip at the bottom is embedded above the sensor shell. A universal driving shaft in transmission connection with the rotor is further rotationally installed above the sensor shell, a sealing piece is installed at the position, located at the connecting position of the rotor, the pressure sensor and the universal driving shaft, above the sensor shell in an embedded mode, the sealing piece comprises three sealing rings, and the three sealing rings are connected to the tail ends of the rotor, the pressure sensor and the universal driving shaft in a pressed and sleeved mode respectively. When the sensor is used, the sealing elements are embedded at the connecting positions of the sensor shell, the rotor, the pressure sensor and the universal driving shaft, so that the sealing performance of the sensor shell is relatively strong, and the sealing rings are integrated, so that the sealing consistency is relatively high; and the situation that local looseness affects sealing is not prone to occurring.

Description

Technical Field

[0001] The utility model relates to the technical field of sensors, in particular to a sensor sealing device. Background Art

[0002] A sensor is a detection device and the primary link to achieve automatic detection and automatic control. The characteristics of sensors include: miniaturization, digitization, intelligence, multi-function, systematization, and networking. Usually, they are divided into ten categories according to their basic sensing functions: thermal sensors, photosensitive elements, gas sensors, force sensors, magnetic sensors, humidity sensors, sound sensors, radiation sensors, color sensors, and taste sensors. They are widely used in various automotive, industrial, consumer and other fields. The sensor can sense the information being measured, and can transform the sensed information into electrical signals or other required forms of information output according to certain rules to meet the requirements of information transmission, processing, storage, display, recording and control;

[0003] The sealing device of the sensor is a structure installed on the sensor to seal the sensor. In the existing sensor sealing structure, since the sensor often has multiple lead-out components, it is often necessary to seal the end of each lead-out component during sealing. The sealing effect is relatively general, and it is easy for a single sealing structure to loosen, affecting the overall sealing of the sensor. Utility Model Content

[0004] The utility model aims to overcome the defects in the sensor sealing structure in the prior art. Since the sensor often has multiple lead-out components, it is often necessary to seal the end of each lead-out component during sealing. The sealing effect is relatively general, and it is easy for a single sealing structure to loosen, affecting the overall sealing of the sensor. A sensor sealing device is provided. Since a seal is embedded and installed at the connection position between the sensor housing and the rotor, the pressure sensor and the linkage shaft, the sealing of the sensor housing is stronger. The three sealing rings are connected by a connecting piece to ensure that the three sealing rings form a whole to constitute a seal. Therefore, the sealing consistency is higher and it is not easy for local loosening to affect the sealing.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] The utility model discloses a sensor sealing device, which is applied to a sensor housing and is used for sealing the sensor. A rotor is rotatably installed at the center of the sensor housing, a pressure sensor with a pressure chip at the bottom is embedded and installed above the sensor housing, a linkage shaft drivingly connected to the rotor is also rotatably installed above the sensor housing, a sealing component is embedded and installed at the connection position of the rotor, the pressure sensor and the linkage shaft above the sensor housing, the sealing component comprises three sealing rings, and the three sealing rings are respectively press-fitted and sleeved on the rotor, the pressure sensor and the end of the linkage shaft. When the sensor is in use, the sealing performance of the sensor housing is relatively strong because the sealing component is embedded and installed at the connection position of the sensor housing and the rotor, the pressure sensor and the linkage shaft.

[0007] Preferably, the three sealing rings are connected by a connecting piece, and the shapes of the three sealing rings respectively match the shapes of the rotor, the pressure sensor and the end structure of the linkage shaft. This ensures that the three sealing rings form a whole to constitute a seal, so the sealing consistency is higher and it is less likely for local looseness to affect the sealing.

[0008] Preferably, the edge of the sealing ring has multiple protrusion structures, and a groove matching the protrusion structure is opened in the shell of the sensor housing. Such a structural arrangement makes the sealing ring more stable after installation through the snap-fitting action of the protrusion structure, thereby making it more sealed.

[0009] Preferably, the protrusion structure, the sealing ring and the connecting piece are integrally formed, and both the protrusion structure and the sealing ring are elastic. The edge of the sealing ring adopts an arc-shaped structure. Such a structural arrangement allows the sealing ring to be easily pulled out and replaced when it becomes corroded and loosened after long-term use, thereby facilitating the sealing maintenance of the sensor.

[0010] Preferably, a circuit board is provided inside the sensor housing, and a pressure chip below the pressure sensor is mounted on the circuit board for detecting the pressure before the door enters the door.

[0011] Preferably, a brush is connected to the bottom of the rotor, and a resistor substrate is installed inside the sensor housing below the brush. When in use, the rotor is driven by the throttle body shaft, and the brush rotates in coordination with the rotor, and rubs against the resistor substrate to achieve performance output, thereby forming rotor position sensing, i.e., position sensing function.

[0012] Preferably, a cover is installed at the lower part of the interior of the sensor housing, and the interior of the sensor housing is filled with filling glue to improve the sealing effect of the interior of the sensor housing and protect the internal parts of the sensor housing.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The sensor has a sealing member embedded in the connection position between the sensor housing and the rotor, the pressure sensor and the linkage shaft, so that the sealing performance of the sensor housing is relatively strong, and the three sealing rings are connected by a connecting member, which ensures that the three sealing rings form a whole to form a sealing member, so the sealing consistency is higher and it is not easy to have a situation where local looseness affects the sealing;

[0015] The edge of the sealing ring of the sensor has multiple protrusions, and grooves matching the protrusions are opened in the shell of the sensor housing, so that after the sealing ring is installed, the installation stability is higher through the snap-fitting action of the protrusions, thereby making it more sealed, and the sealing ring is easy to disassemble. Therefore, when the sealing ring is corroded and loosened after long-term use, it can be easily pulled out and replaced, thereby facilitating the sealing maintenance of the sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is an exploded view of the utility model;

[0018] Figure 3 This is an exploded view from another perspective of the present invention;

[0019] Figure 4 This is a schematic diagram of the sealing structure of the utility model.

[0020] Figure numerals: 1. Wiring plug; 2. Sensor housing; 3. Rotor; 4. Fixing screw hole; 5. Seal; 51. Sealing ring; 52. Connector; 53. Protruding structure; 6. Pressure sensor; 7. Circuit board; 8. Filling glue; 9. Cover; 10. Brush; 11. Resistor substrate; 12. Linkage shaft. DETAILED DESCRIPTION

[0021] The following is combined with Figure 1 -Attached Figure 4, further illustrating the specific implementation of the sensor sealing device of the utility model, which overcomes the sensor sealing structure in the prior art. Since the sensor often has multiple lead-out components, it is often necessary to seal the end of each lead-out component during sealing, and the sealing effect is relatively general. It is easy for a single sealing structure to loosen, affecting the overall sealing of the sensor. The sensor has a seal embedded in the connection position between the sensor housing and the rotor, the pressure sensor and the linkage shaft, so that the sealing of the sensor housing is stronger, and the three sealing rings are connected by a connector to ensure that the three sealing rings form a whole to form a seal. Therefore, the sealing consistency is higher and it is not easy for local loosening to affect the sealing. The sensor sealing device of the utility model is not limited to the description of the following embodiments.

[0022] Embodiment 1:

[0023] This embodiment provides a sensor sealing device, such as Figure 1 -Attached Figure 4 As shown, it is applied to a sensor housing 2 for sealing the sensor, a wiring plug 1 is provided at one end of the sensor housing 2, a fixing screw hole 4 is provided at the edge of the sensor housing 2 for fixing and installing the sensor housing 2, a rotor 3 is rotatably installed at the center of the sensor housing 2, a pressure sensor 6 with a pressure chip at the bottom is embedded and installed above the sensor housing 2, a linkage shaft 12 drivingly connected to the rotor 3 is also rotatably installed above the sensor housing 2, a seal 5 is embedded and installed at the connection position of the rotor 3, the pressure sensor 6 and the linkage shaft 12 above the sensor housing 2, and the seal 5 includes three sealing rings 51, which are respectively pressed and sleeved on the rotor 3, the pressure sensor 6 and the end of the linkage shaft 12.

[0024] By adopting the above technical solution:

[0025] When the sensor is in use, the sealing member 5 is embedded and installed at the connection position between the sensor housing 2 and the rotor 3, the pressure sensor 6 and the linkage shaft 12, so that the sealing performance of the sensor housing 2 is relatively strong.

[0026] Example 2

[0027] On the basis of Example 1, in this embodiment, the three sealing rings 51 are connected by a connecting piece 52, and the shapes of the three sealing rings 51 are respectively matched with the shapes of the rotor 3, the pressure sensor 6 and the end structure of the linkage shaft 12.

[0028] The edge of the sealing ring 51 has a plurality of protrusion structures 53 , and grooves matching the protrusion structures 53 are formed in the sensor housing 2 .

[0029] The protruding structure 53, the sealing ring 51 and the connecting piece 52 are integrally formed, and both the protruding structure 53 and the sealing ring 51 are elastic. The edge of the sealing ring 51 is in an arc shape. This structural setting allows the sealing ring 51 to be easily pulled out and replaced when it becomes corroded and loosened after long-term use, thereby facilitating the sealing maintenance of the sensor.

[0030] By adopting the above technical solution:

[0031] The three sealing rings 51 form a whole to constitute the sealing member 5, so the sealing consistency is higher and it is not easy for local looseness to affect the sealing. In addition, by arranging multiple protruding structures 53 on the edge of the sealing ring 51, the sealing ring 51 has a higher installation stability after installation due to the snap-fitting action of the protruding structures 53, thereby making it more sealed.

[0032] Example 3

[0033] On the basis of Example 1, in this embodiment, a circuit board 7 is provided inside the sensor housing 2, and a pressure chip below the pressure sensor 6 is mounted on the circuit board 7 for detecting the pressure before the door enters the door.

[0034] A brush 10 is connected below the rotor 3 , and a resistor substrate 11 is installed below the brush 10 in the sensor housing 2 .

[0035] A cover body 9 is installed at the lower part of the sensor housing 2 , and the sensor housing 2 is filled with a filling glue 8 . The filling glue 8 is made of AB glue, which makes the sealing effect inside the sensor housing 2 better and protects the internal parts of the sensor housing 2 .

[0036] By adopting the above technical solution:

[0037] When in use, the rotor 3 is driven by the throttle body shaft, and the brush 10 rotates in coordination with the rotor 3 and rubs against the resistor substrate 11 to achieve performance output, thereby forming position sensing of the rotor 3, that is, a position sensing function.

[0038] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A sensor sealing device, applied to a sensor housing (2) for sealing the sensor, characterized in that: A rotor (3) is rotatably mounted at the center of the sensor housing (2); a pressure sensor (6) having a pressure chip at the bottom is embedded and mounted above the sensor housing (2); and a linkage shaft (12) drivingly connected to the rotor (3) is also rotatably mounted above the sensor housing (2); A sealing member (5) is embedded and installed above the sensor housing (2) at the connection position between the rotor (3), the pressure sensor (6) and the linkage shaft (12), and the sealing member (5) comprises three sealing rings (51). The three sealing rings (51) are respectively pressed and sleeved on the ends of the rotor (3), the pressure sensor (6) and the linkage shaft (12), so that the sensor housing (2) remains sealed.

2. A sensor sealing device according to claim 1, characterized in that: The shapes of the three sealing rings (51) respectively match the shapes of the rotor (3), the pressure sensor (6) and the end structure of the linkage shaft (12).

3. A sensor sealing device according to claim 1, characterized in that: The edge of the sealing ring (51) has a plurality of protruding structures (53), and a groove matching the protruding structures (53) is provided in the sensor housing (2).

4. A sensor sealing device according to claim 3, characterized in that: The protruding structure (53) and the sealing ring (51) are integrally formed, and both the protruding structure (53) and the sealing ring (51) are elastic, and the edge of the sealing ring (51) is an arc-shaped structure.

5. A sensor sealing device according to claim 1, characterized in that: A circuit board (7) is arranged inside the sensor housing (2), and the pressure chip below the pressure sensor (6) is mounted on the circuit board (7).

6. A sensor sealing device according to claim 1, characterized in that: A brush (10) is connected below the rotor (3), and a resistor substrate (11) is installed inside the sensor housing (2) below the brush (10). The brush (10) rotates in coordination with the rotor (3) and achieves performance output through friction with the resistor substrate (11), thereby forming position sensing of the rotor (3).

7. A sensor sealing device according to claim 1, characterized in that: A cover body (9) is installed at the lower part of the interior of the sensor housing (2), and the interior of the sensor housing (2) is filled with filling glue (8).

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