Range hood and control system

By introducing a retractor and steam cleaner into the range hood, combined with an intelligent control system, the problems of oil accumulation and clogging of the oil-absorbing cloth are solved, achieving efficient oil adsorption and cleaning, and extending the service life of the equipment.

CN120868480APending Publication Date: 2025-10-31GUANGDONG YAKUDE ELECTRONIC TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202511090507.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-08-05
Publication Date
2025-10-31

AI Technical Summary

Technical Problem

After long-term use, existing range hoods accumulate grease on the impeller, affecting their operation. Furthermore, the grease-absorbing cloth is prone to clogging and has a short lifespan, making cleaning inconvenient.

Method used

Design a range hood with a retractor and a steam cleaner. Through automatic oil suction and high-temperature steam cleaning, combined with an intelligent control system, the range hood can achieve automatic oil absorption and cleaning.

Benefits of technology

It extends the cleaning cycle of the range hood, improves oil absorption efficiency, reduces operating resistance, and simplifies the replacement and cleaning process of the oil-absorbing cloth.

✦ Generated by Eureka AI based on patent content.

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Abstract

The range hood comprises a range hood body and is characterized in that a suction port is formed in the surface of the range hood body, grooves are formed in the left side and the right side of the suction port, winders are installed in the grooves, winding drums are detachably connected to the winders, oil suction pieces are wound around the winding drums, and the oil suction pieces are connected with the oil suction ports. The oil suction piece penetrates through the suction opening and is connected with the two winders through the two winding drums. When the range hood extracts gas and oil smoke passes through the suction port, the oil suction piece adsorbs oil liquid, the oil liquid is prevented from entering the range hood, the cleaning period of the range hood is prolonged, after the sealing cover is opened, the blocking piece is pulled out, the rolled oil suction piece can be taken down from the winding wheel through the winding drum, the oil suction piece is convenient to replace, and the steam cleaner is convenient to start. The steam cleaner sprays the smoke exhaust ventilator through high-temperature steam, so that oil is separated from the smoke exhaust ventilator, and accumulation of oil stains is reduced.
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Description

Technical Field

[0001] This invention relates to the field of range hood technology, specifically to a range hood and its control system. Background Technology

[0002] Range hoods quickly remove exhaust fumes from stoves and harmful cooking fumes, venting them outdoors to reduce pollution and purify indoor air. However, over time, grease accumulates on the impeller, increasing its workload and affecting the hood's operation, necessitating regular cleaning.

[0003] In related technologies, a search revealed a solution for a high-density range hood (publication number CN210979984U) that adds an oil-absorbing cloth between the impeller and the filter. This allows the oil fumes drawn up by the impeller to be absorbed by the oil-absorbing cloth first, and then pass through the impeller and be transported out by it. This reduces the amount of oil fumes adsorbed on the impeller, reduces the number of times the impeller needs to be cleaned, and improves the working efficiency of the range hood. Through the squeezing of several pressure rollers, the oil on the oil-absorbing cloth is collected in the oil storage shell for unified treatment, which improves the oil absorption efficiency of the oil-absorbing cloth.

[0004] However, the squeezing action of the pressure rollers can cause oil to seep into the oil-absorbing cloth, clogging the gaps in the cloth and affecting the suction power of the range hood. This results in a slow exhaust of fumes, and the oil also increases the stickiness of the oil-absorbing cloth, increasing its operating resistance. Under such conditions, the oil-absorbing cloth has a short service life. Since the oil-absorbing cloth is located above the filter tube, replacing it is difficult and inconvenient. Summary of the Invention

[0005] The purpose of this invention is to provide a range hood and control system to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a range hood, comprising a range hood, wherein the surface of the range hood has a suction port, and the left and right sides of the suction port have grooves, and a winding device is installed inside the grooves;

[0007] The winding device is detachably connected to a drum, and the drum is wound with an oil-absorbing component. The oil-absorbing component passes through the suction port and is connected to two winding devices through two drums. The winding device pulls the oil-absorbing component through the drum so that the oil-absorbing part of the oil-absorbing component is wound onto the drum and the oil-absorbing part of the oil-absorbing component that has not absorbed oil is placed in the suction port.

[0008] The oil suction unit is rolled up, which allows it to hold a larger volume of oil. The rewinder controls the winding and unwinding of the oil suction unit, automatically placing it at the suction port for easy oil absorption. The oil suction unit can be removed from the rewinder for easy replacement.

[0009] Furthermore, the range hood is equipped with a steam cleaner, which is connected to a water pipe that passes through the range hood. The water pipe is connected to a kettle. The steam cleaner can clean the operating range hood with steam, reducing the amount of oil adhering to the range hood and significantly extending the cleaning cycle of the range hood.

[0010] Furthermore, a control panel is installed above the suction port, and the control panel is equipped with a light sensor. The control panel is electrically connected to a supplementary light. The control panel can manually control the range hood, steam cleaner, supplementary light, and stepper motor, while the light sensor can automatically control the switch of the supplementary light.

[0011] Furthermore, a cover is rotatably installed on the inner wall of the groove. Positive and negative magnets are respectively installed inside the groove and on the cover. By covering the stepper motor and the oil suction component, the aesthetics of the range hood can be maintained. The magnetic method makes it easy to open the cover and replace the oil suction component.

[0012] Furthermore, the lower end of the range hood is equipped with a bayonet, and a rebound device is provided inside the bayonet. An oil collection box connected to the rebound device is installed in the bayonet. The rebound device can stably lock the oil collection box, prevent the oil collection box from loosening, and prevent the oil in the oil collection box from leaking accidentally. Pressing the oil collection box will cause the rebound device to push the oil collection box, making it easy to remove the oil collection box.

[0013] Furthermore, the range hood is equipped with a main control board, which is electrically connected to an oil fume sensor. The winding device includes a stepper motor, and a winding wheel is installed at the output end of the stepper motor. The roll is fitted onto the winding wheel, and a baffle is fitted at the end of the winding wheel. The stepper motor can accurately release the oil suction component, ensuring that the oil suction component can stably absorb oil. The rolled oil suction component is also easy to remove.

[0014] A control system includes a detection module, a control module, and a memory module. When the range hood is started, the detection module detects whether the inhaled gas contains oil fumes.

[0015] The control module controls the operation of the rewinder and steam cleaner based on the results of the detection module. When the oil fumes in the gas pass through the oil suction component, the oil is absorbed. The steam cleaner generates steam to clean the range hood. When there are no oil fumes in the gas, there is no need to start the stepper motor and steam cleaner, saving power consumption and realizing intelligent operation.

[0016] The memory module records the operating parameters of the rewinder, and then records the remaining amount of the oil suction component. When the oil suction component is almost empty, it can prompt you to replace it.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] (1) When the range hood extracts gas, the oil fumes pass through the suction port and the oil-absorbing parts absorb the oil, preventing the oil from entering the range hood and extending the cleaning cycle of the range hood.

[0019] (2) After opening the cover, remove the baffle plate and you can take the rolled oil suction part off the take-up wheel through the drum, which makes it easy to replace the oil suction part.

[0020] (3) Start the steam cleaner. The steam cleaner uses high-temperature steam to spray the range hood, which separates the oil from the range hood and reduces the accumulation of oil.

[0021] (4) The rebound device locks the oil collection box to ensure that the oil collection box will not loosen or open accidentally, thus preventing oil leakage in the oil collection box. When the oil collection box is pressed, the rebound device pushes the oil collection box to loosen, making it easy to remove the oil collection box and clean the oil. Attached Figure Description

[0022] Figure 1 This is a schematic diagram showing the connection between the range hood and the kettle according to the present invention;

[0023] Figure 2 This is a schematic diagram showing the connection between the suction port and the oil suction component of the present invention;

[0024] Figure 3 This is a schematic diagram showing the connection between the stepper motor and the range hood of the present invention;

[0025] Figure 4 This is a schematic diagram showing the disassembly of the winding wheel and drum of the present invention;

[0026] Figure 5 This is a control principle diagram of the present invention.

[0027] In the diagram: 1. Range hood; 2. Water pipe; 3. Kettle; 4. Clip; 5. Oil collection box; 6. Bayonet; 7. Rebound device; 8. Control panel; 9. Light sensor; 10. Supplemental light; 11. Cover; 12. Suction port; 13. Oil suction component; 14. Negative magnet; 15. Positive magnet; 16. Stepper motor; 17. Rewind reel; 18. Baffle; 19. Roller drum; 20. Fume sensor; 21. Main control board; 22. Steam cleaner. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Example:

[0030] Please see Figure 1-5 The present invention provides a technical solution: a range hood, including a range hood 1, wherein the surface of the range hood 1 is provided with a suction port 12, and the suction port 12 is provided with grooves on both the left and right sides, and a winding device is installed inside the grooves. The grooves prevent the winding device from protruding on the surface of the range hood 1, thus maintaining the aesthetics of the range hood 1.

[0031] A drum 19 is detachably connected to the winding device. An oil-absorbing component 13 is wound around the drum 19. The oil-absorbing component 13 passes through the suction port 12 and is connected to two winding devices through two drums 19. The winding device pulls the oil-absorbing component 13 through the drum 19 so that the oil-absorbing part of the oil-absorbing component 13 is wound onto the drum 19 and the oil-unabsorbing part of the oil-absorbing component 13 is placed in the suction port 12.

[0032] Multiple oil-absorbing components 13 and winding devices can be installed to increase the amount of oil absorbed by the oil-absorbing components 13. The oil-absorbing components 13 are set at an angle to prevent them from blocking the suction port 12 and to avoid affecting the suction power of the range hood 1.

[0033] In this embodiment, as Figure 1 and Figure 5 As shown, a steam cleaner 22 is installed inside the range hood 1, and the steam cleaner 22 is connected to a water pipe 2 that passes through the range hood 1. The water pipe 2 is connected to a water kettle 3. When the range hood 1 is running, the steam cleaner 22 draws water from the water kettle 3 and turns it into high-temperature steam. The steam is then sprayed onto the range hood 1 under high pressure to clean the grease in the range hood 1 and prevent the grease from accumulating in the range hood 1.

[0034] In this embodiment, as Figure 1 and Figure 2 As shown, the range hood 1 has a clamp 4 installed on its side, and the clamp 4 is elastic. The kettle 3 is placed inside the clamp 4, and the clamp 4 clamps the kettle 3 to prevent it from loosening and falling to the ground, and also makes it easy to remove the kettle 3 to fill with water.

[0035] In this embodiment, as Figure 5 As shown, a control panel 8 is installed above the suction port 12, and the control panel 8 is equipped with a light sensor 9. The control panel 8 is electrically connected to a supplementary light 10. The control panel 8 is equipped with manual buttons for easy control of the range hood 1, the supplementary light 10, the stepper motor 16, and the steam cleaner 22. When the range hood 1 is started, the light sensor 9 detects the ambient brightness and can automatically turn on the supplementary light 10.

[0036] In this embodiment, as Figure 2 and Figure 3As shown, a cover 11 is rotatably installed on the inner wall of the groove. A positive magnet 15 and a negative magnet 14 are respectively installed inside the groove and on the cover 11. When the positive magnet 15 and the negative magnet 14 are attracted together, the cover 11 can be prevented from opening, and it is also convenient to open the cover 11 manually.

[0037] In this embodiment, as Figure 2 and Figure 3 As shown, the lower end of the range hood 1 is equipped with a bayonet 6, and a rebound device 7 is provided inside the bayonet 6. An oil collection box 5 connected to the rebound device 7 is installed in the bayonet 6. The oil collection box 5 is first hung on the bayonet 6, and then the rebound device 7 is squeezed to make the rebound device 7 lock the oil collection box 5, preventing the oil collection box 5 from falling off accidentally. When it is necessary to remove the oil collection box 5, pressing the oil collection box 5 will release the oil collection box 5, making it easy to remove the oil collection box 5 for cleaning.

[0038] In this embodiment, as Figure 5 As shown, the range hood 1 is equipped with a main control board 21, which is electrically connected to an oil fume sensor 20. The oil fume sensor 20 can detect oil fumes. When the range hood 1 is running, if the oil fume sensor 20 does not detect oil fumes, the steam cleaner 22 and the stepper motor 16 will not run. If the oil fume sensor 20 detects oil fumes, the steam cleaner 22 and the stepper motor 16 will run, realizing the intelligent start and stop function.

[0039] In this embodiment, as Figure 3 and Figure 4 As shown, the winding device includes a stepper motor 16, and a winding wheel 17 is installed at the output end of the stepper motor 16. The drum 19 is sleeved on the winding wheel 17, and a baffle 18 is sleeved at the end of the winding wheel 17. The baffle 18, together with the winding wheel 17, can prevent the drum 19 from falling off the winding wheel 17. After removing the baffle 18, it is convenient to replace the oil suction component 13. The disassembly steps are simple.

[0040] A control system includes a detection module and a control module. When the range hood 1 is started, the detection module detects whether the inhaled gas contains oil fumes.

[0041] The control module controls the operation of the rewinder and steam cleaner 22 based on the results from the detection module. When the oil fumes in the gas pass through the oil suction component 13, the oil is absorbed, and the steam cleaner 22 generates steam to clean the range hood 1.

[0042] The detection module provides control conditions for the operation of the steam cleaner 22 and the stepper motor 16 through the oil fume sensor 20. The control module is based on the main control board 21. When the oil fume sensor 20 sends a signal to the main control board 21, the main control board 21 controls the steam cleaner 22 and the stepper motor 16 to work.

[0043] In this embodiment, the control system also includes a memory module, which records the operating parameters of the winding device and the remaining amount of the oil suction component 13. The length of the oil suction component 13 is set to a specified length. Based on the stepper motor 16, the memory module records the operating status of the stepper motor 16, thereby determining whether the oil suction component 13 is about to be used up. It can also distinguish the end of the oil suction component 13 by color, so as to detect in time that the oil suction component 13 is about to be used up.

[0044] Specifically, during use, when the range hood 1 is running, the oil fume sensor 20 detects whether the gas adsorbed by the range hood 1 contains oil fumes. If it does, the stepper motor 16 is started. The stepper motor 16 drives the rotation of the drum 19 and the oil suction component 13 through the winding wheel 17. The oil suction component 13 is wound from one drum 19 to another drum 19. The operating speed and pause time of the stepper motor 16 can be changed based on the oil fume concentration, so the winding and release speed of the oil suction component 13 can be intelligently controlled. The oil suction component 13 is located inside the suction port 12. When the oil fume enters the suction port 12, the oil fume adheres to the oil suction component 13, preventing all the oil fume from entering the range hood 1. The stepper motor 16 automatically releases the oil suction component 13. The rolled oil suction component 13 can continuously absorb oil.

[0045] After the range hood 1 is used up, the steam cleaner 22 starts to work. The steam cleaner 22 sends high-temperature steam to all parts of the range hood 1. At high temperature, the oil droplet molecules move faster and are more likely to fall off the range hood 1. Combined with the oil suction component 13, it can effectively extend the cleaning cycle of the range hood 1.

[0046] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A range hood, comprising a range hood (1), characterized in that: The range hood (1) has a suction port (12) on its surface. The suction port (12) has grooves on both the left and right sides, and a winding device is installed inside the grooves. A detachable drum (19) is connected to the winding device. The drum (19) is wound with an oil-absorbing component (13). The oil-absorbing component (13) passes through the suction port (12) and is connected to two winding devices through two drums (19). The winding device pulls the oil-absorbing component (13) through the drum (19) so that the oil-absorbing part of the oil-absorbing component (13) is wound onto the drum (19) and the oil-absorbing part of the oil-absorbing component (13) that has not absorbed oil is placed in the suction port (12).

2. The range hood according to claim 1, characterized in that: The range hood (1) is equipped with a steam cleaner (22), and the steam cleaner (22) is connected to a water pipe (2) that passes through the range hood (1), and the water pipe (2) is connected to a kettle (3).

3. A range hood according to claim 2, characterized in that: The range hood (1) has a clamp (4) installed on its side, and the clamp (4) is elastic, and the kettle (3) is placed inside the clamp (4).

4. A range hood according to claim 1, characterized in that: A control panel (8) is installed above the suction port (12), and the control panel (8) is equipped with a light sensor (9). The control panel (8) is electrically connected to a supplementary light (10).

5. A range hood according to claim 1, characterized in that: A cover (11) is rotatably installed on the inner wall of the groove, and a positive magnet (15) and a negative magnet (14) are respectively installed inside the groove and on the cover (11).

6. A range hood according to claim 1, characterized in that: The range hood (1) is equipped with a bayonet (6) at the lower end, and a rebound device (7) is provided inside the bayonet (6). An oil collection box (5) connected to the rebound device (7) is installed in the bayonet (6).

7. A range hood according to claim 1, characterized in that: The range hood (1) is equipped with a main control board (21), and the main control board (21) is electrically connected to an oil fume sensor (20).

8. A range hood according to claim 1, characterized in that: The winding device includes a stepper motor (16), the output end of which is equipped with a winding wheel (17), the drum (19) is fitted on the winding wheel (17), and the end of the winding wheel (17) is fitted with a baffle (18).

9. A control system for a range hood according to any one of claims 1-8, characterized in that, Includes a detection module and a control module; When the range hood (1) is started, the detection module detects whether the intake gas contains oil fumes; The control module controls the operation of the winding machine and the steam cleaner (22) based on the results of the detection module. When the oil fumes in the gas pass through the oil suction component (13), the oil is absorbed. The steam cleaner (22) generates steam to clean the range hood (1).

10. A control system according to claim 9, characterized in that: It also includes a memory module, which records the operating parameters of the winding machine and thus the remaining amount of the oil suction component (13).

Citation Information

Patent Citations

  • Range hood used at high density

    CN210979984U