Automobile sensor with leakage-proof function

Abstract

The utility model relates to the technical field of automobile sensor, especially a kind of automobile sensor with leak-proof function, including connecting seat, butt joint barrel and monitor, the butt joint barrel is fixedly connected at the top of connecting seat, the inside of butt joint barrel is equipped with sensor installation structure, the outside of monitor is equipped with leak-proof structure, the top of monitor is equipped with sensor power supply structure.This automobile sensor with leak-proof function, the threaded tube of shell bottom is aligned with the thread groove of butt joint barrel inner wall, rotates shell clockwise, makes threaded tube spin into along thread groove and tighten, until shell bottom end and butt joint barrel inner wall are pasted, such threaded connection structure is fixed by mechanical engagement, compared with traditional slider slot structure, stronger anti-vibration ability, can effectively avoid loosening displacement in driving process, avoid sensor drop.

Description

Technical Field

[0001] This utility model relates to the field of automotive sensor technology, specifically to an automotive sensor with leakage prevention function. Background Technology

[0002] Automotive sensors are input devices for automotive computer systems. They convert various operating conditions of the vehicle, such as vehicle speed, temperature of various media, and engine operating conditions, into electrical signals and transmit them to the computer so that the engine can be in the best working condition. There are many automotive sensors. When judging the fault of a sensor, one should not only consider the sensor itself, but also the entire circuit that is malfunctioning.

[0003] For example, the authorized announcement number "CN222495985U" describes an automotive sensor that allows the screw ring to disengage from the external screw groove, pulling the housing outward and away from the fixing sleeve, thus achieving the effect of quick sensor installation and removal. Existing automotive sensors rely heavily on the elastic force of the pressure relief pad to keep the slider in the slot. However, the high-frequency vibrations generated during vehicle operation can cause the slider to gradually disengage from the slot, exacerbating the loosening of the sensor connection and causing the sensor to move or even fall off the vehicle.

[0004] Meanwhile, existing automotive sensors use a sliding mechanism where the sensor housing and fixing sleeve are fixed by a slider sliding into a groove and then engaging with a slot. However, the gap between the housing and the fixing sleeve lacks sealing rings, sealant, or other leak-proof components. When the car is in motion, rainwater and mud can easily seep into the sensor through the gap, corroding the delicate electronic components of the controller and affecting the normal operation of the sensor. Utility Model Content

[0005] The purpose of this invention is to solve the problems of existing automotive sensors, such as the high-frequency vibration generated during vehicle operation causing the slider to gradually disengage from the slot, exacerbating the loosening of the sensor connection, leading to sensor movement or even detachment from the vehicle, and the easy seepage of rainwater and mud into the sensor through the connection gap, corroding the delicate electronic components of the controller and affecting the normal use of the sensor. Therefore, this invention proposes an automotive sensor with a leak-proof function.

[0006] To achieve the above objectives, this utility model provides the following technical solution: Design a car sensor with leakage prevention function, including a connector, a docking cylinder and a monitor. The docking cylinder is fixedly connected to the top of the connector. The inner side of the docking cylinder is provided with a sensor mounting structure. The outer side of the monitor is provided with a leakage prevention structure. The top of the monitor is provided with a sensor power supply structure.

[0007] In this configuration, both the docking sleeve and the connector are made of black plastic, with the docking sleeve attached to the top of the connector.

[0008] Preferably, the sensor mounting structure includes a housing and a threaded groove. The threaded groove is formed at the bottom of the inner wall of the docking cylinder. A threaded tube is threadedly connected to the inner side of the threaded groove. The housing is fixedly connected to the top end of the threaded tube. The nozzle to be monitored is fixedly connected to the top end of the connecting seat.

[0009] This setup involves aligning the threaded tube at the bottom of the housing with the threaded groove on the inner wall of the docking cylinder, rotating the housing clockwise to screw the threaded tube into the groove and tighten it until the bottom of the housing fits against the inner wall of the docking cylinder. This threaded connection structure achieves fixation through mechanical engagement, which is more resistant to vibration than the traditional slider slot structure and can effectively prevent loosening and displacement during driving, thus preventing the sensor from falling off.

[0010] Preferably, the leak-proof structure includes an air injection pipe and a cavity. The cavity is located on the outside of the monitor and is opened inside the outer shell. The two air injection pipes are fixedly connected to both sides of the outer wall of the outer shell. Control valves are fixedly installed at the ends of the two air injection pipes. A sealing ring surrounds the outer wall of the outer shell. Through holes are fixedly opened on both sides of the outer wall of the outer shell. Airbags are fixedly connected to the outside of the two through holes.

[0011] In this setup, after the outer shell and docking cylinder are installed, the control valve at the end of the air injection pipe is opened, and inert gas is manually injected into the cavity inside the outer shell along the air injection pipe. The inert gas then enters the air bladder through the through hole. The air bladder is made of rubber material. The air bladder expands and fits tightly against the inner wall of the docking cylinder. After that, the control valve is closed to maintain a certain pressure in the air bladder. Together with the sealing ring on the outer wall of the outer shell, a double seal is formed to effectively prevent rainwater and mud from seeping in from the gap between the outer shell and the docking cylinder, thus protecting the internal components of the sensor.

[0012] Preferably, the interiors of the two through holes are connected to the cavity, and the outer wall of the airbag is slidably connected to the inner wall of the docking cylinder.

[0013] Preferably, the sensor power supply structure includes a top cover and a battery compartment. The battery compartment is fixedly connected to the top of the monitor via a wire. The top cover is fixedly connected to the top of the outer casing. A cover plate is connected to the top of the top cover via screws. A button battery is movably installed inside the battery compartment.

[0014] In this setup, the button cell battery powers the monitor by transmitting positive and negative terminals through the battery compartment. When the button cell battery is depleted, unscrew the screws at the top of the cover, remove the cover, take the depleted button cell battery out of the battery compartment, replace it with a new button cell battery, and ensure that the positive and negative terminals are installed correctly. Then, replace the cover and tighten the screws. The tight fit between the cover and the top cover prevents external water from entering the battery compartment, reducing the occurrence of battery oxidation or short circuits.

[0015] Preferably, the top end of the nozzle to be monitored is positioned opposite the bottom end of the monitor.

[0016] Preferably, the bottom end of the connector is fixedly connected to a vehicle pipe, and the top end of the vehicle pipe is connected to the nozzle to be monitored.

[0017] This setup connects the automotive pipeline at the bottom of the connector to the nozzle to be monitored at the top. The nozzle to be monitored is positioned opposite the bottom of the monitor, ensuring that the monitor can accurately collect the medium parameters of the nozzle to be monitored.

[0018] The present invention proposes a car sensor with a leak-proof function. The beneficial effects are as follows: the threaded tube at the bottom of the housing is aligned with the threaded groove on the inner wall of the docking cylinder, and the housing is rotated clockwise so that the threaded tube is screwed into the threaded groove and tightened until the bottom end of the housing is in contact with the inner wall of the docking cylinder. In this way, the threaded connection structure is fixed by mechanical engagement. Compared with the traditional slider slot structure, it has stronger vibration resistance and can effectively prevent loosening and displacement during driving, thus preventing the sensor from falling off.

[0019] After the outer shell and docking cylinder are installed, open the control valve at the end of the air injection pipe and manually inject inert gas into the cavity inside the outer shell along the air injection pipe. The inert gas then enters the air bladder through the through hole. The air bladder is made of rubber material. The air bladder expands and fits tightly against the inner wall of the docking cylinder. Then close the control valve to maintain a certain pressure in the air bladder. Together with the sealing ring on the outer wall of the outer shell, a double seal is formed to effectively prevent rainwater and mud from seeping in from the gap between the outer shell and the docking cylinder, thus protecting the internal components of the sensor. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 for Figure 1 A frontal sectional view; Figure 3 for Figure 1 Top view diagram; Figure 4 for Figure 2 Enlarged diagram of part A in the middle; Figure 5 for Figure 2 Enlarged diagram of part B in the middle; Figure 6 for Figure 2 Enlarged diagram of part C in the middle.

[0021] In the diagram: 1. Connecting seat, 2. Docking cylinder, 3. Monitor, 4. Sensor mounting structure, 41. Housing, 42. Threaded pipe, 43. Threaded groove, 44. Nozzle to be monitored, 5. Leak-proof structure, 51. Control valve, 52. Inflation pipe, 53. Fitting ring, 54. Through hole, 55. Airbag, 56. Cavity, 6. Sensor power supply structure, 61. Top cover, 62. Battery slot, 63. Button battery, 64. Cover plate, 7. Automotive pipeline. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings: Example: Please refer to Figure 1-6 In this embodiment, a car sensor with a leak-proof function includes a connector 1, a docking cylinder 2, and a monitor 3. The docking cylinder 2 is fixedly connected to the top of the connector 1. A sensor mounting structure 4 is provided on the inner side of the docking cylinder 2. A leak-proof structure 5 is provided on the outer side of the monitor 3. A sensor power supply structure 6 is provided on the top of the monitor 3. The top of the nozzle 44 to be monitored is positioned opposite to the bottom of the monitor 3. A car pipe 7 is fixedly connected to the bottom of the connector 1. The top of the car pipe 7 is connected to the nozzle 44 to be monitored. Both the docking cylinder 2 and the connector 1 are made of black plastic. The docking cylinder 2 is connected to the top of the connector 1. The car pipe 7 at the bottom of the connector 1 is connected to the nozzle 44 to be monitored at the top. The nozzle 44 to be monitored is positioned opposite to the bottom of the monitor 3, ensuring that the monitor 3 can accurately collect the medium parameters of the nozzle 44 to be monitored.

[0023] The sensor mounting structure 4 includes a housing 41 and a threaded groove 43. The threaded groove 43 is formed at the bottom of the inner wall of the docking cylinder 2. A threaded tube 42 is threadedly connected to the inner side of the threaded groove 43. The housing 41 is fixedly connected to the top of the threaded tube 42. The top of the connecting seat 1 is fixedly connected to the nozzle 44 to be monitored. Align the threaded tube 42 at the bottom of the housing 41 with the threaded groove 43 on the inner wall of the docking cylinder 2, and rotate the housing 41 clockwise so that the threaded tube 42 is screwed into the threaded groove 43 and tightened until the bottom of the housing 41 is in contact with the inner wall of the docking cylinder 2. In this way, the threaded connection structure is fixed by mechanical engagement. Compared with the traditional slider slot structure, it has stronger vibration resistance and can effectively prevent loosening and displacement during driving, thus preventing the sensor from falling off.

[0024] The leak-proof structure 5 includes an air injection pipe 52 and a cavity 56. The cavity 56 is located outside the monitor 3 and is located inside the outer shell 41. Two air injection pipes 52 are fixedly connected to both sides of the outer wall of the outer shell 41. Control valves 51 are fixedly installed at the ends of the two air injection pipes 52. A sealing ring 53 surrounds the outer wall of the outer shell 41. Through holes 54 are fixedly opened on both sides of the outer wall of the outer shell 41. Airbags 55 are fixedly connected to the outside of the two through holes 54. The inside of the two through holes 54 is connected to the cavity 56. The outer wall of the airbag 55 is slidably connected to the inner wall of the docking cylinder 2. When the outer shell 41 and After the docking cylinder 2 is installed, open the control valve 51 at the end of the air injection pipe 52 and manually inject inert gas into the cavity 56 inside the outer shell 41 along the air injection pipe 52. The inert gas then enters the air bladder 55 through the through hole 54. The air bladder 55 is made of rubber material. The air bladder 55 expands and fits tightly against the inner wall of the docking cylinder 2. Then close the control valve 51 to keep the air bladder 55 under a certain pressure. Together with the sealing ring 53 on the outer wall of the outer shell 41, a double seal is formed to effectively prevent rainwater and mud from seeping in from the gap between the outer shell 41 and the docking cylinder 2, thus protecting the internal components of the sensor.

[0025] The sensor power supply structure 6 includes a top cover 61 and a battery compartment 62. The battery compartment 62 is fixedly connected to the top of the monitor 3 via wires. The top cover 61 is fixedly connected to the top of the housing 41. A cover plate 64 is connected to the top of the top cover 61 by screws. A button battery 63 is movably installed inside the battery compartment 62. The button battery 63 supplies power to the monitor 3 through the positive and negative terminals in the battery compartment 62. When the button battery 63 is depleted, the screws on the top of the top cover 61 are unscrewed, the cover plate 64 is removed, the depleted button battery 63 is taken out of the battery compartment 62, a new button battery 63 is replaced, and the positive and negative terminals are ensured to be installed correctly. Then the cover plate 64 is replaced and the screws are tightened. The tight fit between the cover plate 64 and the top cover 61 can prevent external water from entering the battery compartment 62 and reduce the occurrence of battery oxidation or short circuit problems.

[0026] Working principle: Car sensors with leak-proof capabilities can monitor gases emitted from car pipelines. The top end of the vehicle pipe 7 is connected to the nozzle 44 to be monitored. Both the docking cylinder 2 and the connecting seat 1 are made of black plastic. The docking cylinder 2 is connected to the top end of the connecting seat 1. The vehicle pipe 7 at the bottom end of the connecting seat 1 is connected to the nozzle 44 to be monitored at the top end, ensuring that the monitor 3 can accurately collect the medium parameters of the nozzle 44 to be monitored. After the outer shell 41 and the docking cylinder 2 are installed, open the control valve 51 at the end of the air injection pipe 52 and manually inject inert gas into the cavity 56 inside the outer shell 41 along the air injection pipe 52. The inert gas then enters the air bladder 55 through the through hole 54. The air bladder 55 is made of rubber material. The air bladder 55 expands and fits tightly against the inner wall of the docking cylinder 2. Then close the control valve 51 to keep the air bladder 55 under a certain pressure. Together with the sealing ring 53 on the outer wall of the outer shell 41, a double seal is formed to effectively prevent rainwater and mud from seeping in from the gap between the outer shell 41 and the docking cylinder 2, thus protecting the internal components of the sensor. Align the threaded tube 42 at the bottom of the outer shell 41 with the threaded groove 43 on the inner wall of the docking cylinder 2, rotate the outer shell 41 clockwise so that the threaded tube 42 is screwed into the threaded groove 43 and tightened until the bottom of the outer shell 41 is in contact with the inner wall of the docking cylinder 2. In this way, the threaded connection structure is fixed by mechanical engagement. Compared with the traditional slider slot structure, it has stronger vibration resistance and can effectively prevent loosening and displacement during driving, and prevent the sensor from falling off. The button battery 63 in the battery compartment 62 enables the monitor 3 to work through the positive and negative terminal supply circuit. When the button battery 63 is depleted, unscrew the screw at the top of the top cover 61, remove the cover plate 64, remove the depleted button battery 63 from the battery compartment 62, replace it with a new button battery 63 and ensure that the positive and negative terminals are installed correctly, then put the cover plate 64 back on and tighten the screw. The tight fit between the cover plate 64 and the top cover 61 can prevent external water from entering the battery compartment 62 and reduce the occurrence of battery oxidation or short circuit problems.

[0027] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail are possible within the scope of the claims.

Claims

1. A car sensor with leak-proof function, comprising a connector (1), a docking cylinder (2), and a monitor (3), wherein the docking cylinder (2) is fixedly connected to the top of the connector (1), characterized in that: The inner side of the docking cylinder (2) is provided with a sensor mounting structure (4), the outer side of the monitor (3) is provided with a leak-proof structure (5), and the top of the monitor (3) is provided with a sensor power supply structure (6).

2. The automotive sensor with leak-proof function according to claim 1, characterized in that: The sensor mounting structure (4) includes a housing (41) and a threaded groove (43). The threaded groove (43) is opened at the bottom of the inner wall of the docking cylinder (2). The inner side of the threaded groove (43) is threadedly connected to a threaded tube (42). The housing (41) is fixedly connected to the top of the threaded tube (42). The top of the connecting seat (1) is fixedly connected to the nozzle (44) to be monitored.

3. The automotive sensor with leak-proof function according to claim 1, characterized in that: The leak-proof structure (5) includes an air injection pipe (52) and a cavity (56). The cavity (56) is located on the outside of the monitor (3) and is located inside the outer shell (41). The two air injection pipes (52) are fixedly connected to the two sides of the outer wall of the outer shell (41). Control valves (51) are fixedly installed at the ends of the two air injection pipes (52). The outer wall of the outer shell (41) is surrounded by a sealing ring (53). Through holes (54) are fixedly opened on both sides of the outer wall of the outer shell (41). Airbags (55) are fixedly connected to the outside of the two through holes (54).

4. The automotive sensor with leak-proof function according to claim 3, characterized in that: The interiors of the two through holes (54) are connected to the cavity (56), and the outer wall of the airbag (55) is slidably connected to the inner wall of the docking cylinder (2).

5. The automotive sensor with leak-proof function according to claim 1, characterized in that: The sensor power supply structure (6) includes a top cover (61) and a battery compartment (62). The battery compartment (62) is fixedly connected to the top of the monitor (3) by a wire. The top cover (61) is fixedly connected to the top of the outer shell (41). The top of the top cover (61) is connected to a cover plate (64) by screws. A button battery (63) is movably installed inside the battery compartment (62).

6. The automotive sensor with leak-proof function according to claim 2, characterized in that: The top end of the nozzle (44) to be monitored is positioned opposite the bottom end of the monitor (3).

7. The automotive sensor with leak-proof function according to claim 1, characterized in that: The bottom end of the connecting seat (1) is fixedly connected to the automobile pipe (7), and the top end of the automobile pipe (7) is connected to the nozzle (44) to be monitored.

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