An integrated electromagnetic valve washing device for automobile sensor washing

Abstract

The application discloses an integrated electromagnetic valve cleaning device for automobile sensor cleaning and relates to the technical field of electromagnetic valve cleaning devices.The device comprises a valve body, a water inlet pipe arranged on the valve body, a plurality of water outlet pipes arranged on both sides of the water inlet pipe, each water outlet pipe being in separate communication with the water inlet pipe, an electromagnetic valve comprising an electromagnetic coil group arranged in the valve body, a movable iron core arranged in the electromagnetic coil group and a reset spring arranged between the electromagnetic coil group and the movable iron core, a plurality of sealing cavities arranged in the valve body, each sealing cavity being in communication with the water inlet of the water outlet pipe and the water outlet of the corresponding water inlet pipe, and the movable iron core partially extending into the sealing cavity.The device has multiple water outlet pipes controlled by the electromagnetic valve to send water, thereby realizing rapid cleaning of multiple sensors at different positions and greatly improving the cleaning efficiency of automobile sensors.

Description

Technical Field

[0001] This invention relates to the field of electromagnetic valve cleaning devices, and more specifically, to an integrated electromagnetic valve cleaning device for cleaning automotive sensors. Background Technology

[0002] Because automobiles have a large number of sensors that are small in size, their outer surfaces are difficult to clean. If left uncleaned for a long time, dirt and grime will accumulate on the surfaces, affecting detection. Currently, automotive sensor cleaning devices can only clean individual sensors, resulting in low cleaning efficiency.

[0003] Chinese Patent Publication No. CN116176498A, published on May 30, 2023, discloses a method and apparatus for cleaning vehicle-mounted sensors, applicable to sensor cleaning in autonomous vehicles. When the controller determines that the transmittance obtained from the sensor is less than a preset value, a timer set in the controller controls the timing of valve opening, and the duration of the pump and valve opening controls the end of sensor cleaning. This avoids waste of cleaning liquid caused by the sensor still judging whether it is clean after it has been rinsed, thus improving the utilization rate of cleaning liquid. However, it suffers from low cleaning efficiency. Summary of the Invention

[0004] This invention overcomes the shortcomings of the above-mentioned technical problems and provides an integrated solenoid valve cleaning device for cleaning automotive sensors. It can achieve rapid cleaning of sensors in multiple different locations, greatly improving the cleaning efficiency of automotive sensors.

[0005] Another objective of this invention is that the presence of multiple individual water outlets allows the device to clean multiple devices such as sensors and radars simultaneously or individually until the dirt is removed, effectively improving the level of automation and cleaning efficiency.

[0006] Another objective of this invention is that the design of the water-proof pad structure can effectively ensure that the core of the movable iron core and the return spring are in direct contact, preventing the cleaning fluid from causing oxidation and corrosion due to prolonged contact with the return spring and the core of the movable iron core.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: an integrated solenoid valve cleaning device for cleaning automotive sensors, comprising a valve body, an inlet pipe on the valve body, and several outlet pipes on both sides of the inlet pipe, each outlet pipe being individually connected to the inlet pipe; a solenoid valve, comprising an electromagnetic coil assembly disposed within the valve body, a movable iron core disposed within the electromagnetic coil assembly, and a return spring disposed between the electromagnetic coil assembly and the movable iron core; the valve body is provided with several sealing cavities, each sealing cavity being respectively connected to the inlet of the outlet pipe and the corresponding outlet of the inlet pipe, the movable iron core extending into the sealing cavity, and the movable iron core being able to block the inlet of the outlet pipe, thereby closing the connection between the inlet pipe and the outlet pipe.

[0008] This invention provides an integrated solenoid valve cleaning device for cleaning automotive sensors, including a control board, a power supply connector for the control board, and an external power supply connected to the power supply connector. The control board, external power supply, and solenoid valve are electrically connected. The integrated solenoid valve of this invention maintains the surface cleanliness of all sensors in the vehicle through the internal control board: when the control board receives a dirt signal from a sensor on the vehicle, it starts the washing motor, causing the external water tank to supply water to the inlet pipe. Simultaneously, it controls the solenoid valve corresponding to the sensor to open, causing the movable iron core to move downwards (compressed by a return spring). The movable iron core disengages from the blockage at the inlet of the outlet pipe, thereby sending the cleaning fluid from the inlet pipe to the sealed cavity, then from the sealed cavity to the outlet pipe, and finally from the outlet pipe to the nozzle near the sensor, cleaning the sensor, radar, etc., until the dirt is removed. The control board then shuts off the washing motor and the corresponding solenoid valve. This invention features multiple individually supplied water outlets, allowing the device to clean multiple devices such as sensors and radar simultaneously or individually until the dirt is removed, effectively improving the level of automation and cleaning efficiency.

[0009] Preferably, the valve body includes a valve seat and a ten-way valve cover fixedly installed on the upper side of the valve seat. The inlet pipe is located in the middle of the ten-way valve cover, and the outlet pipes are located on both sides of the inlet pipe, with equal intervals between the outlet pipes on the same side.

[0010] The uniquely shaped ten-way valve cover enables simultaneous cleaning of multiple devices, effectively improving the cleaning efficiency of the equipment.

[0011] Preferably, the sealing cavity is formed by a combination of a kit nested in the valve body and a sleeve nested on the kit; the sleeve is fixedly disposed in the electromagnetic coil assembly, the movable iron core is slidably disposed in the sleeve, the end of the movable iron core extending into the sealing cavity is provided with a boss, and a return spring is disposed between the boss and the lower inner wall of the kit.

[0012] The sealed cavity structure formed by the nesting of the valve body, the kit, and the sleeve can effectively simplify the overall structure, reduce production costs, make the device easier to assemble and disassemble, and provide a better sealing effect.

[0013] Preferably, a water-proof mechanism is provided in the sealed cavity; the water-proof mechanism includes a water-proof pad disposed between the inner wall of the kit and the boss.

[0014] The second objective of this invention is to provide a ring-shaped water-proof pad. When the inlet of the water outlet pipe is blocked by the movable iron core, the connection point between the water-proof pad and the movable iron core is higher than the connection point between the water-proof pad and the side wall inside the first kit. When the inlet of the water outlet pipe is fully open and the movable iron core is at its lowest point, the connection point between the water-proof pad and the movable iron core is lower than the connection point between the water-proof pad and the side wall inside the first kit. This structure of the water-proof pad effectively ensures direct contact between the iron core of the movable iron core and the return spring, preventing oxidation and corrosion caused by prolonged contact between the cleaning fluid and the return spring and the iron core of the movable iron core.

[0015] Preferably, the sealed cavity is provided with a drainage mechanism, which includes a movable push rod disposed in the upper side wall of the sealed cavity and a switch slider disposed in the inner side wall of the sealed cavity. A hydraulic pipe is provided between the switch slider and the movable push rod. The other end of the hydraulic pipe connecting the switch slider is provided with a telescopic spring. The switch slider is provided with a drainage through hole. The first kit is provided with a drainage channel. The switch slider is slidably disposed in the side wall of the drainage channel.

[0016] The third objective of the invention is to provide a through-drainage channel two on the side wall of the valve body, which is connected to drainage channel one. When the inlet of the outlet pipe is blocked by the movable iron core, the connection point between the water-proof pad and the movable iron core is higher than the connection point between the water-proof pad and the side wall of the first kit. The cleaning fluid remaining in the sealed cavity will converge at the connection point between the first kit and the water-proof pad via the slope formed by the water-proof pad. During the process of the movable iron core moving upward to block the inlet, it will first contact the movable push rod, and then gradually push the movable push rod to squeeze and flow the hydraulic oil in the hydraulic pipe, thereby pushing the switch slider to slide in the side wall slide cavity of drainage channel one, so that the drainage hole is connected to the drainage channel, thus converging at the connection point between the first kit and the water-proof pad and flowing out through drainage channel one, and then being discharged through drainage channel two. This achieves effective discharge of residual liquid in the sealed cavity, thereby effectively reducing the pressure load on the water-proof pad, improving the service life of the water-proof pad, and thus effectively improving the service life of the device.

[0017] Preferably, the bottom edge of the connection between the kit one on the lower side of the drainage channel and the water-proof pad is lower than the height of the side edge of the connection between the kit one and the water-proof pad in other positions.

[0018] The annular section of the water-proof pad gradually slopes downwards from the inner diameter to the outer diameter, forming a flow channel. This sloped section is fixedly connected to the lower side of the drainage channel to improve the backflow effect of the cleaning fluid at the inlet of the outlet pipe during sealing. Preferably, a sealing plug is provided inside the end wall of the boss, further enhancing the sealing effect at the inlet of the outlet pipe.

[0019] Preferably, the valve body is equipped with a support seat, and a retaining spring is provided between the support seat and the sleeve. This facilitates the installation and fixation of the sleeve.

[0020] Compared with the prior art, the beneficial effects of the present invention are: (1) There are multiple water outlets for individual water supply, which allows the device to clean multiple devices such as sensors and radar at the same time or clean them individually until the dirt is removed, effectively improving the level of automation and cleaning efficiency; (2) The design of the water-proof pad structure can effectively ensure that the iron core of the movable iron core and the return spring are in direct contact, preventing the cleaning fluid from causing oxidation and corrosion due to prolonged contact with the return spring and the iron core of the movable iron core; (3) It can effectively realize the effective discharge of residual liquid in the sealed cavity, thereby effectively reducing the pressure load on the water-proof pad, improving the service life of the water-proof pad, and thus effectively improving the service life of the device. Attached Figure Description

[0021] Figure 1 This is an isometric view of an integrated solenoid valve cleaning device according to the present invention; Figure 2 This is a cross-sectional view of an integrated solenoid valve cleaning device according to the present invention; Figure 3 This is a partial cross-sectional view of an integrated solenoid valve cleaning device according to the present invention; Figure 4 This is the present invention. Figure 3 A magnified view of the area marked "A" in the image. Figure 5 This is a cross-sectional view at "BB" in section 4 of the present invention; Figure 6 This is a cross-sectional view at "CC" in section 4 of the present invention; Figure 7 This is a cross-sectional view of the waterproof pad of the present invention; In the diagram: Valve body 1; Control board 2; Control board power connector 3; Valve seat 1.1; Ten-way valve cover 1.2; Inlet pipe 4; Outlet 4.1; Outlet pipe 5; Inlet 5.1; Electromagnetic coil assembly 6; Movable iron core 7; Return spring 8; Sealing cavity 9; Kit 1 10; Sleeve 11; Boss 12; Sealing plug 13; Support seat 14; Upper cavity 15; Lower cavity 16; Snap ring 17; Waterproof pad 18; A1; Movable push rod 19; Switch slider 20; Hydraulic pipe 21; Telescopic spring 22; Drainage through hole 23; Drainage channel 1 24; Slide cavity 25; Drainage channel 2 26; Connecting edge 1 27; Connecting edge 2 28; Connecting bottom edge 28.1; Connecting side edge 28.2; Flow channel 1 29. Detailed Implementation

[0022] It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0023] The technical solution of the invention will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings: Example 1: See Appendix Figure 1 To be continued Figure 4 An integrated solenoid valve cleaning device for cleaning automotive sensors includes a valve body 1, a control board 2, a control board power supply connector 3, and an external power supply connected to the control board power supply connector. The control board, the external power supply, and the solenoid valve are electrically connected. The valve body includes a valve seat 1.1 and a ten-way valve cover 1.2 fixedly mounted on the upper side of the valve seat. A water inlet pipe 4 is provided in the middle of the ten-way valve cover, and water outlet pipes 5 are provided on both sides of the water inlet pipe on the ten-way valve cover. The water outlet pipes on the same side are equally spaced, and each water outlet pipe is individually connected to the water inlet pipe. Multiple devices can be cleaned simultaneously through the ten-way valve cover, which effectively improves the cleaning efficiency of the device. The solenoid valve includes an electromagnetic coil assembly 6 disposed within the valve body, a movable iron core 7 disposed within the electromagnetic coil assembly, and a return spring 8 disposed between the electromagnetic coil assembly and the movable iron core. The valve body is provided with several sealing cavities 9, each of which is connected to the inlet of the outlet pipe and the corresponding outlet 4.1 of the inlet pipe. The movable iron core extends into the sealing cavity, and can block the inlet 5.1 of the outlet pipe through the movable iron core, thereby closing the connection between the inlet pipe and the outlet pipe.

[0024] The sealing cavity is formed by combining a component 10 nested inside the valve body and a sleeve 11 nested on the component 1. The sleeve is fixedly installed inside the electromagnetic coil assembly, and the movable iron core is slidably installed inside the sleeve. A boss 12 is provided at the end of the movable iron core that extends into the sealing cavity, and a return spring is located between the boss and the lower inner wall of the component 1. The sealing cavity structure formed by the nesting of the valve body, the component 10, and the sleeve effectively simplifies the overall structure, reduces production costs, makes the disassembly and assembly of the device more convenient, and provides a better sealing effect.

[0025] A sealing plug 13 is provided inside the end wall of the boss. This improves the sealing effect of the water outlet inlet.

[0026] The valve body is equipped with a support seat 14. The control plate forms an upper cavity 15 and a lower cavity 16 within the valve body. The coil assembly is located in the upper cavity, and the control plate is located in the lower cavity. A retaining spring 17 is provided between the support seat and the sleeve to facilitate the installation and fixation of the sleeve. Detailed implementation method: This invention provides an integrated solenoid valve cleaning device for cleaning automotive sensors. This integrated solenoid valve cleaning device maintains the surface cleanliness of all vehicle sensors through an internal control board: when the control board receives a dirt signal from a sensor on the vehicle, it starts the washing motor, supplying water from the external water tank to the inlet pipe. Simultaneously, it controls the solenoid valve corresponding to the sensor to open, causing the movable iron core to move downwards (due to the compression of the return spring). The movable iron core disengages from the blockage at the inlet of the outlet pipe, thereby delivering cleaning fluid from the inlet pipe to the sealed cavity, then from the sealed cavity to the outlet pipe, and finally from the outlet pipe to the nozzles near the sensor, cleaning the sensor, radar, etc., until the dirt is removed. The control board then shuts off the washing motor and the corresponding solenoid valve. This invention features multiple individually supplied water outlets, allowing the device to clean multiple devices such as sensors and radar simultaneously or individually until the dirt is removed, effectively improving the level of automation and cleaning efficiency. Specific Implementation Example 2: See appendix Figure 3 To be continued Figure 4 This embodiment adds a water-proof mechanism to the sealed cavity of specific embodiment 1; the water-proof mechanism includes a water-proof pad 18 disposed between the inner wall of component one and the boss. The water-proof pad has a ring structure. A connecting edge 27 is provided between the water-proof pad and the movable iron core, and a connecting edge 28 is provided between the water-proof pad and the inner side wall of component one.

[0029] Specific implementation method: When the inlet of the water outlet pipe is blocked by the movable iron core, the connection position between the water-proof pad and the movable iron core is higher than the connection position between the water-proof pad and the inner side wall of the first kit; when the inlet of the water outlet pipe is fully opened and the movable iron core is at the lowest point, the connection position between the water-proof pad and the movable iron core is lower than the connection position between the water-proof pad and the inner side wall of the first kit; the structure of this water-proof pad can effectively ensure that the iron core of the movable iron core and the return spring are in direct contact, preventing the cleaning fluid from oxidizing and corroding due to prolonged contact with the return spring and the iron core of the movable iron core. Specific Implementation Example 3: See appendix Figure 3 To be continued Figure 7This embodiment adds a drainage mechanism to specific embodiment 2. It is located within a sealed cavity and includes a movable push rod 19 housed in the upper side wall of the sealed cavity and a locking slider 20 housed in the inner side wall of the sealed cavity. A hydraulic pipe 21 connects the switch slider and the movable push rod. A telescopic spring 22 is located at the other end of the hydraulic pipe connecting the switch slider. A drainage hole 23 is provided on the switch slider, and a drainage channel 24 is provided on the first assembly. The switch slider slides within a sliding cavity 25 in the side wall of the drainage channel 24. A second, through drainage channel 26 is provided on the side wall of the valve body, allowing the first and second drainage channels to communicate.

[0031] Detailed Implementation: When the inlet of the outlet pipe is blocked by the movable iron core, the connection point between the water-proof pad and the movable iron core is higher than the connection point between the water-proof pad and the side wall inside the first kit. The residual cleaning fluid in the sealed cavity will converge from the slope formed by the water-proof pad towards the connection point between the first kit and the water-proof pad. During the process of the movable iron core moving upward to block the inlet, it will first contact the movable push rod, and then gradually push the movable push rod to squeeze and flow the hydraulic oil in the hydraulic pipe, thereby pushing the switch slider to slide in the side wall sliding cavity of the first drainage channel, so that the drainage hole is connected to the drainage channel, thus converging at the connection point between the first kit and the water-proof pad and flowing out through the first drainage channel, and then being discharged through the second drainage channel; thereby achieving effective discharge of residual liquid in the sealed cavity, thereby effectively reducing the pressure load on the water-proof pad, improving the service life of the water-proof pad, and thus effectively improving the service life of the device. Specific Implementation Example 4: See appendix Figure 3 To be continued Figure 7 This embodiment improves upon specific embodiment 3 by modifying the water-proof pad. The bottom edge 28.1 connecting the kit one on the lower side of the drainage channel to the water-proof pad is lower than the side edge 28.2 connecting the kit one to the water-proof pad at other locations. The annular section of the water-proof pad gradually slopes downward from the inner diameter direction to the outer diameter direction to form a flow channel 29. This inclined section is fixedly connected to the lower side of the drainage channel, which facilitates the improvement of the backflow effect of the cleaning fluid at the inlet of the outlet pipe when it is blocked.

[0033] The beneficial effects of the present invention are: (1) There are multiple water outlets for individual water supply, which allows the device to clean multiple devices such as sensors and radar at the same time or clean them individually until the dirt is removed, effectively improving the level of automation and cleaning efficiency; (2) The design of the water-proof pad structure can effectively ensure that the iron core of the movable iron core and the return spring are in direct contact, preventing the cleaning fluid from causing oxidation and corrosion due to prolonged contact with the return spring and the iron core of the movable iron core; (3) It can effectively realize the effective discharge of residual liquid in the sealed cavity, thereby effectively reducing the pressure load on the water-proof pad, improving the service life of the water-proof pad, and thus effectively improving the service life of the device.

[0034] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any way. Other variations and modifications may be made without departing from the technical solutions described in the claims.

Claims

1. An integrated solenoid valve cleaning device for cleaning automotive sensors, characterized in that, The system includes a valve body, a control board, and an external power supply. The valve body has an inlet pipe, and several outlet pipes on both sides of the inlet pipe, each outlet pipe being individually connected to the inlet pipe. A solenoid valve includes an electromagnetic coil assembly within the valve body, a movable iron core within the electromagnetic coil assembly, and a return spring between the electromagnetic coil assembly and the movable iron core. The valve body has several sealing cavities, each connected to the inlet of the outlet pipe and its corresponding outlet. The movable iron core extends into the sealing cavity, sealing the inlet of the outlet pipe and closing the connection between the inlet and outlet pipes. The sealing cavities contain... A water-blocking mechanism is provided; the water-blocking mechanism includes a water-blocking pad disposed between the inner wall of the first kit and the boss; the annular section of the water-blocking pad gradually slopes downward from the inner diameter direction to the outer diameter direction to form a flow channel; a drainage mechanism is provided in the sealed cavity, which includes a movable push rod disposed in the upper side wall of the sealed cavity and a switch slider disposed in the inner side wall of the sealed cavity, a hydraulic pipe is provided between the switch slider and the movable push rod, the other end of the hydraulic pipe connecting the switch slider is provided with a telescopic spring, the switch slider is provided with a drainage through hole, the first kit is provided with a drainage channel, and the switch slider is slidably disposed in the sliding cavity in the side wall of the drainage channel; the flow channel corresponds to the lower side of the drainage channel.

2. The integrated solenoid valve cleaning device for cleaning automotive sensors according to claim 1, characterized in that, The valve body includes a valve seat and a ten-way valve cover fixedly installed on the upper side of the valve seat. The inlet pipe is located in the middle of the ten-way valve cover, and the outlet pipes are located on both sides of the inlet pipe, with equal intervals between the outlet pipes on the same side.

3. The integrated solenoid valve cleaning device for cleaning automotive sensors according to claim 1, characterized in that, The sealing cavity is formed by a combination of a kit nested in the valve body and a sleeve nested on the kit; the sleeve is fixedly installed in the electromagnetic coil assembly, the movable iron core is slidably installed in the sleeve, and the end of the movable iron core extending into the sealing cavity is provided with a boss, and the return spring is located between the boss and the lower inner wall of the kit.

4. The integrated solenoid valve cleaning device for cleaning automotive sensors according to claim 1, characterized in that, The bottom edge of the connection between the first component and the water-proof pad on the lower side of the drainage channel is lower than the side edge of the connection between the first component and the water-proof pad in other positions; the valve body side wall is provided with a through drainage channel 2.

5. An integrated solenoid valve cleaning device for cleaning automotive sensors according to any one of claims 1-3, characterized in that, A sealing plug is provided inside the end wall of the boss.

6. An integrated solenoid valve cleaning device for cleaning automotive sensors according to any one of claims 1-3, characterized in that, The valve body is equipped with a support seat, and a retaining ring is provided between the support seat and the sleeve.

7. An integrated solenoid valve cleaning device for cleaning automotive sensors according to claim 1, characterized in that, The control board is electrically connected to the external power supply and the solenoid valve.

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