Front electrostatic purification device of range hood
By introducing a pre-static static purification device into the range hood and secondary filtering of the fume is solved by using the electrostatic purification module to solve the problems of increased resistance and noise vibration of the fan system, and the clean operation and environmental protection of the fan system are achieved.
Patent Information
- Application Number
- CN202421258344.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-04
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-06-04
AI Technical Summary
When the existing range hoods improve the separation effect of the fume, it is easy to cause the fan system to increase the resistance, causing noise and vibration problems.
The pre-static static purification device of the range hood is adopted, including an electrostatic purification module and a centrifugal fan. This device performs secondary filtering of the oil fume through the electrostatic purification module to reduce the accumulation of oil and pollution of the fan system and reduce the pollution of the exhaust gas.
The clean state of the fan system of the range hood is achieved, ensuring the continuous and optimal operation of the centrifugal fan, while reducing the pollution of exhaust gas and harmful particulate matter, and protecting the environment.
Smart Images

Figure CN222438015U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of range hood technology, specifically a pre-static electrostatic purification device for range hoods. Background Technology
[0002] Range hoods are a common kitchen appliance in modern society. They are often installed above the stove and can remove the fumes produced during cooking through a ventilation system, thereby reducing the impact of fumes on the kitchen environment and reducing the amount of fumes adhering to the human body.
[0003] Range hoods are an indispensable household appliance, mainly used to remove cooking fumes and other harmful substances produced during cooking. With the improvement of people's living standards and increasingly stringent environmental protection requirements, how to ensure the cleanliness of the internal fan system of the range hood and minimize the pollution of the environment by the exhaust gas has become an important research topic for range hoods.
[0004] In use, most existing household range hoods on the market use a front-end oil fume separation mesh to forcibly separate oil fumes and particulate matter. The separation effect of the oil fume separation mesh is strongly related to the flow resistance of the front channel of the range hood. Improving the separation effect will inevitably increase the flow resistance, which will increase the resistance of the range hood's exhaust fan system and bring additional negative effects such as increased noise and vibration. Therefore, a front-end electrostatic purification device for range hoods is proposed to address the above problems. Utility Model Content
[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.
[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: The pre-electrostatic purification device for range hoods of this utility model includes a range hood frame; a pair of oil fume separation nets are bolted to the bottom of the range hood frame; the range hood frame is bolted to the side wall of the range hood frame; an electrostatic purification module fixing base is fixedly connected to the inside of the range hood frame above the oil fume separation nets; an electrostatic purification module is bolted to the top of the electrostatic purification module fixing base; a centrifugal fan body is fixedly connected to the inside of the range hood frame above the electrostatic purification module; the centrifugal fan body is set at an angle, and a centrifugal fan air inlet is opened on the side close to the range hood frame; a centrifugal fan air outlet is opened on the top of the centrifugal fan body, and a smoke exhaust outlet is opened on the top of the range hood frame, and the centrifugal fan air outlet and the smoke exhaust outlet are in the same position.
[0007] Preferably, the side wall of the range hood frame is connected to the frame cover plate by a snap fastener; the side wall of the frame cover plate is fixedly connected to an observation window; the position of the observation window is the same as that of the electrostatic purification module.
[0008] Preferably, the electrostatic purification module uses the principle of ionization adsorption to adsorb particulate matter present in the oil fumes, so that relatively clean air enters the centrifugal fan body and is discharged outward.
[0009] The beneficial effects of the utility model are:
[0010] 1. This utility model provides a pre-positioned electrostatic purification device for range hoods. Through the filtration effect of the electrostatic purification module, the internal fan system of the range hood can always maintain a state with less oil stains, ensuring that the centrifugal fan body continues to work in the best condition; at the same time, it reduces the exhaust gas and harmful particulate matter generated during the cooking process, thus playing a role in protecting the environment.
[0011] 2. This utility model provides a pre-positioned electrostatic purification device for range hoods. Through the frame cover and observation window, users can easily observe the working components inside the range hood frame, thereby enabling targeted cleaning and maintenance, and facilitating subsequent maintenance. Attached Figure Description
[0012] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:
[0013] Figure 1 This is a front view of the present invention;
[0014] Figure 2 This is a left-side cross-sectional view of the present invention;
[0015] Figure 3 This is a front cross-sectional view of the present invention;
[0016] Figure 4 This is an exploded view of the present invention.
[0017] Legend:
[0018] 1. Range hood frame; 11. Oil fume separation mesh; 12. Electrostatic purification module; 13. Centrifugal fan body; 14. Centrifugal fan air inlet; 15. Centrifugal fan air outlet; 16. Frame cover plate; 17. Observation window; 18. Electrostatic purification module fixing base. Detailed Implementation
[0019] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0020] See also Figure 1-4 As shown, the pre-mounted electrostatic purifier for the range hood includes a range hood frame 1; a pair of oil fume separation nets 11 are bolted to the bottom of the range hood frame 1; the range hood frame 1 is bolted to the side wall of the range hood frame 1; an electrostatic purification module fixing base 18 is fixedly connected to the inside of the range hood frame 1 above the oil fume separation nets 11; an electrostatic purification module 12 is bolted to the top of the electrostatic purification module fixing base 18; a centrifugal fan body 13 is fixedly connected to the inside of the range hood frame 1 above the electrostatic purification module 12; the centrifugal fan body 13 is angled, and a centrifugal fan inlet 14 is opened on the side near the range hood frame 1; a centrifugal fan outlet 15 is opened on the top of the centrifugal fan body 13, and a smoke exhaust port is opened on the top of the range hood frame 1, with the centrifugal fan outlet 15 and the smoke exhaust port in the same position; during the cooking process, as oil fumes are generated, the electrostatic purifier... The centrifugal fan body 13 installed inside the range hood frame 1 can be started. Utilizing the airflow effect generated by the centrifugal fan body 13, the oil fumes below the range hood frame 1 first pass through the oil fume separation net 11, filtering out larger oil particles. Subsequently, the oil fumes carrying smaller particles enter the electrostatic purification module 12. Through the ionization adsorption effect generated by the electrostatic purification module 12 being connected to electricity, the particulate matter in the oil fumes undergoes secondary filtration, thus making the oil fumes discharged by the electrostatic purification module 12 relatively clean. Then, they pass through the centrifugal fan inlet 14 installed on the centrifugal fan body 13 and enter the flue for discharge from the centrifugal fan outlet 15. The filtration effect of the electrostatic purification module 12 ensures that the internal fan system of the range hood always maintains a state with less oil fumes, ensuring that the centrifugal fan body 13 continues to work in optimal condition; at the same time, it reduces the exhaust gas and harmful particulate matter generated during the cooking process, playing a role in protecting the environment.
[0021] See also Figure 1-4As shown, the side wall of the range hood frame 1 is connected to the frame cover plate 16 by a snap fastener; an observation window 17 is fixedly connected to the side wall of the frame cover plate 16; the position of the observation window 17 is the same as that of the electrostatic purification module 12; during normal use of the range hood frame 1, the user can observe the electrostatic purification module 12 operating inside the range hood frame 1 in real time through the observation window 17 installed on the frame cover plate 16. With the detachable nature of the frame cover plate 16, the user can easily disassemble and clean the electrostatic purification module 12. Through the frame cover plate 16 and the observation window 17, the user can intuitively observe the working components inside the range hood frame 1, thereby performing targeted cleaning and maintenance, which is convenient for subsequent maintenance.
[0022] See also Figure 1-4 As shown, the electrostatic purification module 12 uses the principle of ionization adsorption to adsorb particulate matter present in the oil fume, so that relatively clean air enters the centrifugal fan body 13 and is discharged outward.
[0023] Working Principle: During cooking, as oil fumes are generated, the centrifugal fan 13 installed inside the range hood frame 1 can be activated. Utilizing the airflow effect generated by the centrifugal fan 13, the oil fumes below the range hood frame 1 first pass through the oil fume separation net 11, filtering out larger oil particles. Subsequently, the oil fumes carrying smaller particles enter the electrostatic purification module 12. Through the ionization adsorption effect generated by the electrostatic purification module 12 being connected to electricity, the particulate matter in the oil fumes undergoes secondary filtration, resulting in relatively clean oil fumes discharged from the electrostatic purification module 12. The oil fumes then pass through the centrifugal fan inlet 14 installed on the centrifugal fan 13 and enter the flue for discharge through the centrifugal fan outlet 15. During normal use of the range hood frame 1, the user can observe the electrostatic purification module 12 operating inside the range hood frame 1 in real time through the observation window 17 installed on the frame cover 16. The removable frame cover 16 allows for easy disassembly and cleaning of the electrostatic purification module 12.
[0024] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention as claimed.
Claims
1. A range hood pre-electrostatic purification device, comprising a range hood frame (1), characterized in that: A pair of oil fume separation nets (11) are bolted to the bottom of the range hood frame (1); the range hood frame (1) is bolted to the side wall of the range hood frame (1); an electrostatic purification module fixing base (18) is fixedly connected inside the range hood frame (1) above the oil fume separation nets (11); an electrostatic purification module (12) is bolted to the top of the electrostatic purification module fixing base (18); a centrifugal fan body (13) is fixedly connected inside the range hood frame (1) above the electrostatic purification module (12); the centrifugal fan body (13) is arranged at an oblique angle, and a centrifugal fan air inlet (14) is provided on a side close to the range hood frame (1); a centrifugal fan air outlet (15) is provided on the top of the centrifugal fan body (13), and a smoke exhaust port is provided on the top of the range hood frame (1), and the centrifugal fan air outlet (15) and the smoke exhaust port are located at the same position.
2. The pre-electrostatic purification device for a range hood according to claim 1, characterized in that: The side wall of the range hood frame (1) is connected to a frame cover plate (16) via a buckle; the side wall of the frame cover plate (16) is fixedly connected to an observation window (17); the position of the observation window (17) is the same as that of the electrostatic purification module (12).
3. The pre-static purification device for a range hood according to claim 1, characterized in that: The electrostatic purification module (12) uses the principle of ionization adsorption to adsorb particulate matter in the oil smoke, so that relatively clean air enters the interior of the centrifugal fan body (13) and is discharged to the outside.