An adaptive oil stain capturing device for an integrated stove and a capturing method thereof

By using an adaptive oil capture device, which utilizes electrostatic field and heating to melt oil, the problem of complex and safety hazards in cleaning oil stains from integrated stove fans is solved, achieving automated cleaning and safe oil stain treatment.

CN116697429BActive Publication Date: 2026-07-21NORTH CHINA MUNICIPAL ENG DESIGN & RES INST
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NORTH CHINA MUNICIPAL ENG DESIGN & RES INST
Filing Date
2023-06-20
Publication Date
2026-07-21

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    Figure CN116697429B_ABST
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Abstract

An adaptive oil stain capture device for integrated stoves includes a shell, a differential pressure controller, a differential pressure sensing circuit, a high-voltage generator, an electrostatic field circuit, a heating generator, an overheat protection device and circuit, a heating circuit, and an oil collection box. Overheat protection devices and circuits are located on both sides of the shell. The differential pressure controller, differential pressure sensing circuit, heating generator, and high-voltage generator are located on the top of the shell. Multiple channels are arranged inside the shell, with the heating circuit and electrostatic field circuit located within these channels. The differential pressure controller and differential pressure sensing circuit are connected. An oil collection box is located at the bottom of the shell. The heating circuit and overheat protection device and circuit are both connected to the heating generator. The high-voltage generator is connected to the electrostatic field circuit. This device ensures the safety of the integrated stove during oil stain cleaning, shortens the manual cleaning cycle, and achieves real-time monitoring, oil stain capture, automatic judgment of oil stain adsorption saturation, and automatic oil stain cleaning.
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Description

Technical Field

[0001] This invention belongs to the technical field of integrated stoves, specifically providing an adaptive oil stain capture device and its capture method for integrated stoves. Background Technology

[0002] An integrated cooktop mainly consists of a gas stove and a fan. The gas stove is used for cooking, and the fan is used to exhaust the fumes produced during cooking to the outside. After prolonged use, a certain amount of grease will accumulate on the inner wall and impeller of the fan, affecting the fume extraction efficiency. To ensure the fume extraction effect of the integrated cooktop, the fan needs to be cleaned frequently. However, cleaning the grease from the integrated cooktop requires first disconnecting the gas pipeline and disassembling the cooktop itself. Therefore, the grease cleaning work is very complicated, and the repeated disassembly and reassembly of the gas pipeline poses serious safety hazards.

[0003] Therefore, there is a need in the field for a simple and safe oil spill capture technology and corresponding capture device to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to address the aforementioned problems in the existing technical field by providing an adaptive oil stain capture device for integrated stoves. This device can ensure the safety of integrated stoves during oil stain cleaning, shorten the manual cleaning cycle, and thereby achieve real-time monitoring, oil stain capture, automatic judgment of oil stain adsorption saturation, and automatic oil stain cleaning of integrated stoves.

[0005] Another object of the present invention is to provide a capture method for the above-described adaptive oil capture device for integrated stoves.

[0006] As conceived above, the technical solution of the present invention is: an adaptive oil capture device for integrated stoves, characterized in that: it includes a shell, a differential pressure controller, a differential pressure sensing circuit, a high-voltage generator, an electrostatic field circuit, a heating generator, an overheat protection device and circuit, a heating circuit, and an oil collection box. The shell has overheat protection devices and circuits on both sides, and a differential pressure controller, a differential pressure sensing circuit, a heating generator, and a high-voltage generator on the top of the shell. The shell has multiple layers of channels inside, and the heating circuits are located in both the horizontal and vertical channels of the multiple layers. The electrostatic field circuits are distributed in the vertical channels of the multiple layers. The differential pressure controller and the differential pressure sensing circuit are connected. An oil collection box is located at the bottom of the shell. The heating circuits and the overheat protection device and circuit are both connected to the heating generator. The high-voltage generator is connected to the electrostatic field circuit.

[0007] The above-mentioned method for capturing oil stains using an adaptive oil stain capture device for integrated stoves includes the following steps: ① When the integrated stove is powered on, the high-pressure generator, heating generator, differential pressure controller, overheat protection device and circuit, and limit switch are powered on respectively to check whether they are in normal condition. If the self-test is qualified, it enters the standby state; if the self-test is unqualified, the alarm is activated. ② When the integrated stove fan starts, the differential pressure controller and the differential pressure sensing circuit are activated; When the differential pressure controller determines that the differential pressure is normal and the limit switch does not activate, the high-voltage generator activates, and the electrostatic field circuit connected to it generates an electrostatic field that is energized, attracting oil stains. When the differential pressure controller determines that the differential pressure is normal, but the limit switch is activated, the alarm is activated; When the differential pressure controller determines that the differential pressure is abnormal, the heating generator is activated; ③ When the heating circuit is started, if the pressure difference returns to normal within a preset time and the limit switch does not operate, the high-voltage generator operates, and the electrostatic field circuit connected to it generates an electrostatic field to adsorb oil stains. ④ If the pressure difference cannot be restored to normal within a preset time after the heating circuit is started, the heating generator will stop operating and the alarm will be activated at the same time. ⑤ When the temperature of the insulating ceramic body is too high, the overheat protection device and circuit are activated, causing the heating generator to stop working and the alarm to be activated; ⑥ When the integrated stove fan stops running, the capture device stops running and enters standby mode.

[0008] Preferably, the outer shell and the multi-layer channel walls are made of insulating ceramic.

[0009] Preferably, a limiter is provided in the oil collection box.

[0010] Preferably, the heating generator is equipped with a timer and an alarm.

[0011] The present invention has the following advantages and positive effects: 1. The present invention adopts a multi-layer channel design inside the outer shell, which reduces the movement distance of oil stains in the device and is more conducive to the capture of oil stains.

[0012] 2. The present invention distributes an electrostatic field circuit inside the vertical channel of the multi-layer channel, which has an electrostatic adsorption design, thereby solving the problem of easy clogging of traditional oil filter screens.

[0013] 3. The present invention has a built-in differential pressure controller and heating generator to melt the oil, ensuring that the oil channel of the device is unobstructed, improving the oil adsorption capacity, and avoiding the possibility of vacuum operation of the fan due to channel blockage.

[0014] 4. The present invention adopts an overheat protection design, which solves the safety problem that may be caused by the heating generator and heating circuit overheating in the device of the present invention.

[0015] 5. The present invention adopts a timed heating design, which solves the problem of prolonged heating caused by special circumstances in the device of the present invention.

[0016] 6. This invention adopts a liquid level limiting design, which solves the problem of oil overflow caused by excessive oil in the oil collection box.

[0017] 7. The device of the present invention is installed at the air inlet of the integrated stove fan. The oil fumes generated by the integrated stove enter the fan after being filtered by the device of the present invention, which solves the problem of reduced oil fume exhaust effect due to oil adhering to the fan impeller. Attached Figure Description

[0018] Figure 1 This is a front view of the capturing device of the present invention; Figure 2 This is a side view (view from direction A) of the capturing device of the present invention. Figure 3 This is a top view (view from direction B) of the capturing device of the present invention. Figure 4 This is a flowchart of the capture method of the present invention. Detailed Implementation

[0019] See appendix Figure 1-3 This invention provides an adaptive oil stain capture device and method for integrated stoves, aiming to solve the problems of oil stain cleaning, oil stain capture and oil stain removal in integrated stove fans, and effectively reduce the number of times integrated stoves need to be disassembled and reassembled for oil stain cleaning, thereby improving the safety of integrated stove users.

[0020] First refer to Figure 1-2The device of the present invention includes an insulating ceramic body 4, a differential pressure controller 1, a differential pressure sensing circuit 10, a high voltage generator 2, an electrostatic field circuit 7, a heating generator (including a timer and an alarm) 3, an overheat protection device and circuit 9, a heating circuit 6, an oil collection box 5, and a limit switch 8. The insulating ceramic body 4 is equipped with overheat protection devices and circuits 9 on both sides. The top of the insulating ceramic body 4 is equipped with a differential pressure controller 1, a differential pressure sensing circuit 10, a heating generator 3, and a high-voltage generator 2. The insulating ceramic body 4 has multiple channels inside. To improve the effect of heating and melting oil stains, heating circuits 6 are set inside both the horizontal and vertical channels of the multiple channels. At the same time, electrostatic field circuits 7 are only distributed inside the vertical insulating ceramic body 4. When oil fumes pass through the insulating ceramic body 4, the oil stains are adsorbed onto the inner wall of the vertical insulating ceramic body 4 under the action of the electrostatic field, realizing the oil stain capture function. The differential pressure controller 1 and the differential pressure sensing circuit 10 are connected. The bottom of the insulating ceramic body 4 is equipped with an oil collection box 5, and a limiter 8 is set in the oil collection box. The heating circuit 6, the overheat protection devices, and the circuits 9 are all connected to the heating generator 3. The high-voltage generator 2 is connected to the electrostatic field circuit 7.

[0021] Because some oil stains are solidified at room temperature, they cannot fall into the lower oil collection box 5 in time. After long-term use, the solidified oil stains gradually clog the inner wall of the insulating ceramic body 4, affecting the smoke extraction effect of the integrated stove, and the pressure difference monitored by the differential pressure sensing circuit 10 increases. At this time, the capturing device operates through the heating circuit 6 inside the insulating ceramic body 4, and the solidified oil stains are converted into liquid under high temperature conditions, falling into the lower oil collection box 5, realizing the oil stain self-cleaning function of the capturing device.

[0022] To prevent accidents caused by abnormally high temperatures in heating circuit 6, an overheat protection device and a preset maximum temperature for circuit 9 are used. If the temperature exceeds this, the detection device is considered abnormal, the heating generator stops working, and an alarm is triggered.

[0023] Meanwhile, to prevent the heating circuit 6 from continuing to operate due to malfunctions in the differential pressure controller 1 and differential pressure sensing circuit 10, a timer is set inside the heating generator 3 to preset the maximum operating time of the heating circuit 6. If this time is exceeded, the capturing device is considered malfunctioning, the heating generator 3 stops operating, and an alarm is triggered.

[0024] It should be noted that, since integrated stoves are household gas appliances and are used for short periods each time, the limiter 8 is only needed to monitor the oil collection level in the oil collection box 5 when the capture device is activated and the oil self-cleaning is completed. However, the limiter 8 can still be set to monitor the oil collection level in the oil collection box 5 throughout the entire operation of the capture device.

[0025] The alarm in this invention can be used in conjunction with other alarms in an integrated stove. Simply change "alarm action" to "alarm signal transmitted to the alarm" in this invention.

[0026] Continue reading Figure 3 The overheat protection device and circuit 9 are connected to the heating generator (including timer and alarm) 3 to ensure that the heating generator 3 can be shut off in time when the temperature of the insulating ceramic body 4 is too high. The differential pressure sensing circuit 10 monitors the pressure difference between the oil fume inlet and outlet of the fume capture device.

[0027] The following is combined Figure 4 The following describes in detail the capture method of the adaptive oil stain capture device for integrated stoves, including the following steps: ① When the integrated stove is powered on, the high-pressure generator, heating generator, differential pressure controller, overheat protection device and circuit, and limit switch are powered on respectively to check whether they are in normal condition. If the self-test is qualified, it enters the standby state; if the self-test is unqualified, the alarm is activated. ② When the integrated stove fan starts, the differential pressure controller and the differential pressure sensing circuit are activated, causing the differential pressure controller to start. The differential pressure sensing circuit connected to it monitors the differential pressure across the device and transmits the differential pressure information to the differential pressure controller. When the differential pressure controller determines that the differential pressure is normal and the limit switch does not operate, the high voltage generator operates, and the electrostatic field circuit connected to it generates an electrostatic field and is energized, generating an electrostatic field in the device of the present invention. The oil stains in the flue gas are adsorbed on the surface of the insulating ceramic body by the electrostatic field through the device of the present invention. When the differential pressure controller determines that the differential pressure is normal, but the limit switch is activated, the alarm is activated; When the differential pressure controller determines that the differential pressure is abnormal, it starts the heating generator, and the heating circuit connected to it is energized to generate heat, which heats the insulating ceramic body 4, causing the oil adsorbed on the insulating ceramic body 4 to melt into liquid and flow into the oil collection box below. ③ When the heating circuit is started, the timer is started. If the differential pressure controller senses that the differential pressure has returned to normal through the differential pressure sensing circuit within the preset timer time, and the limit switch does not move, the high voltage generator moves, and the electrostatic field circuit connected to it generates an electrostatic field to adsorb oil stains. ④ When the heating circuit is started, a timer is started. If the differential pressure controller senses that the differential pressure cannot be restored to normal within the preset time of the timer, the heating generator stops operating and the alarm is activated at the same time. ⑤ When the temperature of the insulating ceramic body is too high, the overheat protection device and circuit are activated, causing the heating generator to stop working and the alarm to be activated; ⑥ When the integrated stove fan stops running, the capture device stops running and enters a standby state. That is, the high-pressure generator, the heating generator, the differential pressure controller, etc. all stop running and are in a standby state, waiting for the signal for the integrated stove fan to start running again.

[0028] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An adaptive oil stain capture device for integrated stoves, characterized in that: The device includes a housing, a differential pressure controller, a differential pressure sensing circuit, a high-voltage generator, an electrostatic field circuit, a heating generator, an overheat protection device and circuit, a heating circuit, and an oil collection box. Overheat protection devices and circuits are located on both sides of the housing. The top of the housing houses the differential pressure controller, differential pressure sensing circuit, heating generator, and high-voltage generator. The housing contains multiple channels. The heating circuit is located within both the horizontal and vertical channels of the multiple channels. The electrostatic field circuit is distributed within the vertical channels of the multiple channels. The differential pressure controller and differential pressure sensing circuit are connected. An oil collection box with a limit switch is located at the bottom of the housing. The heating circuit and overheat protection device and circuit are both connected to the heating generator. The high-voltage generator is connected to the electrostatic field circuit. A timer and alarm are installed within the heating generator.

2. The adaptive oil capture device for integrated stoves according to claim 1, characterized in that: The outer shell and the multi-layer channel walls are made of insulating ceramic.

3. A method for capturing oil stains using an adaptive oil stain capture device for an integrated stove according to claim 2, characterized in that: Includes the following steps: ① When the integrated stove is powered on, the high-pressure generator, heating generator, differential pressure controller, overheat protection device and circuit, and limit switch are powered on respectively to check whether they are in normal condition. If the self-test is qualified, it enters the standby state; if the self-test is unqualified, the alarm is activated. ② When the integrated stove fan starts, the differential pressure controller and the differential pressure sensing circuit are activated; When the differential pressure controller determines that the differential pressure is normal and the limit switch does not activate, the high-voltage generator activates, and the electrostatic field circuit connected to it generates an electrostatic field that is energized, attracting oil stains. When the differential pressure controller determines that the differential pressure is normal, but the limit switch is activated, the alarm is activated; When the differential pressure controller determines that the differential pressure is abnormal, the heating generator is activated; ③ When the heating circuit is started, if the pressure difference returns to normal within a preset time and the limit switch does not operate, the high-voltage generator operates, and the electrostatic field circuit connected to it generates an electrostatic field to adsorb oil stains. ④ If the pressure difference cannot be restored to normal within a preset time after the heating circuit is started, the heating generator will stop operating and the alarm will be activated at the same time. ⑤ When the temperature of the insulating ceramic body is too high, the overheat protection device and circuit are activated, causing the heating generator to stop working and the alarm to be activated; ⑥ When the integrated stove fan stops running, the capture device stops running and enters standby mode.