An adaptive flue wind pressure range hood

Abstract

The utility model relates to the technical field of range hood, and disclose a kind of self-adapting flue wind pressure range hood, including smoke collection box;Smoke pipe, the smoke pipe fixed communication is in smoke collection box top;Filter screen, the filter screen is set in smoke collection box bottom;Fan, the fan is fixedly connected in smoke pipe inside;Control chip, the control chip is fixedly connected in smoke pipe inner wall;Wind pressure sensor, the wind pressure sensor is fixedly connected in smoke pipe inner wall, the wind pressure sensor is connected with control chip, the fan is connected with control chip;Through the collaborative work of wind pressure sensor and control chip, fan, flue wind pressure can be monitored in real time and automatically adjust air volume, effectively solve the problem that the smoke is not smooth, oil fume backflow etc. caused by excessive flue wind pressure during public flue peak period, compared with traditional fixed air volume range hood, significantly improve the smoke exhaust efficiency and stability, provide better kitchen smoke exhaust experience for user.

Description

Technical Field

[0001] This utility model relates to the field of range hood technology, specifically an adaptive flue pressure range hood. Background Technology

[0002] With the development of intelligent kitchen appliances, adaptive duct pressure range hoods have emerged. These range hoods use built-in pressure sensors and intelligent control systems to monitor changes in duct pressure in real time and automatically adjust fan speed and exhaust air volume. This effectively solves the problem of poor smoke extraction caused by excessive pressure in public ducts during peak hours, providing users with an efficient and stable smoke extraction experience and improving the comfort and convenience of the kitchen environment.

[0003] Application No. 202323458112.5 discloses a range hood. This utility model has a lower air intake on the side of the range hood, and the oil fumes are drawn into the lower air intake through a deflector plate. After the oil fumes escape from the lower air intake, they continue to rise. Excess oil fumes can be drawn out through the upper air intake of the smoke collection chamber, which improves the overall smoke extraction effect of the range hood and avoids smoke escape and leakage. Even under low air volume or air pressure conditions, there is very little smoke escape or leakage.

[0004] The aforementioned range hoods use a fixed airflow design and cannot dynamically adjust according to the duct pressure. During peak usage periods in shared ducts, when multiple households simultaneously turn on their range hoods, causing a sudden increase in duct pressure, the fixed-airflow range hoods are prone to problems such as backflow of fumes and low exhaust efficiency due to insufficient suction. This not only affects kitchen air quality but may also cause fumes to adhere to kitchen walls, cabinets, and other surfaces, increasing cleaning difficulty. To address this, we have proposed an adaptive duct pressure range hood. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides an adaptive flue gas pressure range hood, which solves the aforementioned problems.

[0006] To achieve the above-mentioned objectives, this utility model provides the following technical solution: an adaptive flue gas pressure range hood, comprising:

[0007] Smoke collection box;

[0008] A smoke exhaust pipe is fixedly connected to the top of the smoke collection box;

[0009] The filter screen is located at the bottom of the smoke collection box;

[0010] The fan is fixedly connected inside the exhaust pipe;

[0011] A control chip, which is fixedly connected to the inner wall of the exhaust pipe;

[0012] A wind pressure sensor is fixedly connected to the inner wall of the exhaust pipe. The wind pressure sensor is connected to a control chip, and the fan is connected to the control chip.

[0013] Preferably, bolts are provided between the filter screen and the smoke collection box, and a handle is fixedly connected to the side wall of the filter screen.

[0014] Preferably, L-shaped connecting rods are fixedly connected to both sides of the bottom of the filter screen, and two sets of L-shaped connecting rods are symmetrically arranged on both sides of the bottom of the filter screen.

[0015] Preferably, a plurality of tapered oil guide rods are fixedly connected to the bottom of the filter screen;

[0016] The bottom end of the tapered oil guide rod is conical.

[0017] Preferably, an oil guide groove is provided below the filter screen;

[0018] The oil guide grooves are provided in a plurality of linearly distributed forms;

[0019] Oil collection boxes are fixedly connected to both sides of the oil guide groove;

[0020] The oil collection box is fixedly connected to the bottom side wall of the L-shaped connecting rod, and the oil guide groove is located below the conical oil guide rod.

[0021] Preferably, the oil guide groove is inverted V-shaped.

[0022] Compared with the prior art, this utility model provides an adaptive flue gas pressure range hood, which has the following beneficial effects:

[0023] 1. High-efficiency adaptive smoke extraction: Through the coordinated work of wind pressure sensor, control chip and fan, it can monitor the wind pressure of the flue in real time and automatically adjust the air volume, effectively solving the problems of poor smoke extraction and backflow of oil fumes caused by excessive wind pressure in public flues during peak hours. Compared with traditional fixed air volume range hoods, it significantly improves smoke extraction efficiency and stability, providing users with a better kitchen smoke extraction experience.

[0024] 2. Optimized oil collection and cleaning: The tapered oil guide rod at the bottom of the filter, combined with the inverted V-shaped oil guide groove and oil collection box, forms a complete oil collection system. This system effectively collects filtered oil, reducing oil adhesion inside the range hood and other parts of the kitchen, simplifying kitchen cleaning, and also helping to maintain the range hood's optimal performance. Attached Figure Description

[0025] Fig. 1 This is a schematic diagram of the overall structure of this utility model;

[0026] Fig. 2 This is a schematic diagram of the internal structure of this utility model;

[0027] Fig. 3 This is a schematic diagram of the filter structure of this utility model.

[0028] In the diagram: 1. Smoke collection box; 2. Smoke exhaust pipe; 3. Filter screen; 4. Pull handle; 5. Conical oil guide rod; 6. Bolt; 7. Oil guide groove; 8. Fan; 9. Control chip; 10. Wind pressure sensor; 11. Oil collection box; 12. L-shaped connecting rod. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figs. 1-3 An adaptive flue gas pressure range hood, comprising:

[0031] Smoke collection box 1;

[0032] Smoke exhaust pipe 2 is fixedly connected to the top of smoke collection box 1;

[0033] Filter screen 3 is located at the bottom of the smoke collection box 1;

[0034] Fan 8 is fixedly connected inside the smoke exhaust pipe 2;

[0035] Control chip 9 is fixedly connected to the inner wall of the exhaust pipe 2;

[0036] Wind pressure sensor 10 is fixedly connected to the inner wall of the exhaust pipe 2. Wind pressure sensor 10 is connected to control chip 9. Fan 8 is connected to control chip 9.

[0037] The fan 8 generates suction to draw in cooking fumes. The wind pressure sensor 10 monitors the wind pressure in the exhaust pipe 2 and transmits the data to the control chip 9. The control chip 9 then adjusts the fan speed 8 accordingly to change the airflow. Through the coordinated work of the wind pressure sensor 10, the control chip 9, and the fan 8, the exhaust duct wind pressure can be monitored in real time and the airflow can be automatically adjusted. This effectively solves the problems of poor smoke exhaust and backflow of cooking fumes caused by excessive wind pressure in the public exhaust duct during peak hours. Compared with traditional fixed airflow range hoods, this significantly improves smoke exhaust efficiency and stability, providing users with a better kitchen smoke exhaust experience.

[0038] Bolts 6 are provided between filter screen 3 and smoke collection box 1, and a handle 4 is fixedly connected to the side wall of filter screen 3;

[0039] The filter screen 3 is connected to the smoke collection box 1 by bolts 6. When disassembling, unscrew bolts 6 and use pull handle 4 to remove the filter screen 3 from the bottom of the smoke collection box 1.

[0040] The bottom sides of the filter screen 3 are fixedly connected with L-shaped connecting rods 12. There are two sets of L-shaped connecting rods 12, which are symmetrically arranged on both sides of the bottom of the filter screen 3.

[0041] The L-shaped connecting rods 12 on both sides of the bottom of the filter screen 3 enhance the stability of the filter screen and provide installation support for the oil guide groove 7 and the oil collection box 11.

[0042] Several tapered oil guide rods 5 are fixedly connected to the bottom of the filter screen 3;

[0043] The bottom of the tapered oil guide rod 5 is conical;

[0044] The oil sludge filtered by filter screen 3 slides down the conical surface of the tapered oil guide rod 5 into the oil guide groove 7 under the action of gravity.

[0045] An oil guide groove 7 is provided below the filter screen 3;

[0046] Several oil guide grooves 7 are provided and are linearly distributed;

[0047] Oil collection boxes 11 are fixedly connected to both sides of the oil guide groove 7;

[0048] The oil collection box 11 is fixedly connected to the bottom side wall of the L-shaped connecting rod 12, and the oil guide groove 7 is located below the tapered oil guide rod 5;

[0049] Oil sludge falls from the conical oil guide rod 5 into the inverted V-shaped oil guide groove 7, and flows to the oil collection boxes 11 on both sides under the action of gravity.

[0050] Oil guide groove 7 is inverted V-shaped;

[0051] The tapered oil guide rod 5 at the bottom of the filter 3, together with the inverted V-shaped oil guide groove 7 and the oil collection box 11, forms a complete oil collection system. This system can effectively collect the filtered oil, reduce the adhesion of oil inside the range hood and other parts of the kitchen, reduce the difficulty of kitchen cleaning, and also help maintain the good working performance of the range hood.

[0052] Structural Description: Smoke Collection Box 1: Located at the bottom of the range hood, it is the starting area for collecting cooking fumes; its internal space can collect the cooking fumes generated in the kitchen, providing a centralized source for exhaust treatment. It is fixedly connected to the exhaust pipe 2 to ensure that the fumes smoothly enter the exhaust duct.

[0053] Smoke exhaust pipe 2: Serves as a channel for exhausting oil fumes outdoors. One end is connected to the top of the smoke collection box 1, and the other end leads to the outside. Inside, a fan 8, a control chip 9, and a wind pressure sensor 10 are installed, providing space and place for oil fume transmission and intelligent air volume adjustment.

[0054] Filter 3: Located at the bottom of the smoke collection box 1, it can initially filter oil fumes, separate large oil droplets and impurities, and protect components such as the fan 8; it is connected to the smoke collection box 1 by bolts 6, making it easy to disassemble, clean, and replace.

[0055] Pull handle 4: Fixed to the side wall of filter screen 3, it provides a force point for the user when disassembling filter screen 3, reducing the difficulty of disassembly, making filter screen 3 maintenance more convenient, and making filter screen 3 disassembly operation easy to complete.

[0056] Conical oil guide rod 5: Installed at the bottom of filter screen 3, with a conical bottom. It guides the oil sludge filtered by filter screen 3, and uses the conical surface to make the oil sludge fall into the oil guide groove 7 under gravity, reducing the amount of oil sludge residue at the bottom of filter screen 3.

[0057] Bolt 6: Enables detachable connection between filter screen 3 and smoke collection box 1; tightening or loosening bolt 6 can securely install filter screen 3, or disassemble it for cleaning or replacement, balancing installation stability and maintenance convenience.

[0058] Oil guide groove 7: Located below filter screen 3, it is inverted V-shaped and linearly distributed; it receives the oil sludge that slides off the conical oil guide rod 5, and uses the inverted V-shaped structure to make the oil sludge flow to both sides, guiding the oil sludge into the oil collection box 11 for efficient oil sludge collection.

[0059] Fan 8: Located inside the exhaust pipe 2, it is the core power source for smoke extraction. Its operation generates suction, drawing the fumes from the smoke collection box 1 into the exhaust pipe 2 for discharge. Its rotation speed is controlled by the control chip 9 based on data from the wind pressure sensor 10, achieving dynamic adjustment of the airflow.

[0060] Control chip 9: Installed on the inner wall of the exhaust pipe 2, it is the core of intelligent control; it receives data from the wind pressure sensor 10, analyzes and processes it, and controls the speed of the fan 8 to realize that the range hood automatically adjusts the exhaust air volume according to the wind pressure of the flue.

[0061] Wind pressure sensor 10: Fixed to the inner wall of the flue pipe 2, it monitors the changes in flue wind pressure in real time and transmits the data to the control chip 9 in a timely manner, providing accurate data basis for the speed adjustment of the fan 8.

[0062] Oil collection box 11: fixed to the bottom side wall of L-shaped connecting rod 12, located on both sides of oil guide groove 7; collects oil stains flowing out of oil guide groove 7, making it easy to disassemble and clean, keeping the inside of the range hood clean, and reducing kitchen oil pollution.

[0063] L-shaped connecting rods 12: Two sets are symmetrically arranged on both sides of the bottom of the filter screen 3. This enhances the structural stability of the filter screen 3 and provides installation support for the oil guide groove 7 and the oil collection box 11, ensuring the stable operation of the oil collection system.

[0064] Instructions for use

[0065] When the range hood is started, the fan 8 operates, creating negative pressure in the smoke collection box 1. This draws the kitchen fumes from the bottom of the smoke collection box 1, where they are initially filtered by the filter screen 3 and then discharged to the outside along the exhaust pipe 2. During the exhaust process, the wind pressure sensor 10, fixedly connected to the inner wall of the exhaust pipe 2, monitors the duct wind pressure in real time and transmits the data to the control chip 9. Based on the wind pressure data, the control chip 9 intelligently controls the fan speed 8 and dynamically adjusts the exhaust air volume. When the duct wind pressure increases, the control chip 9 controls the fan 8 to increase its speed and air volume to ensure effective exhaust. When the duct wind pressure decreases, the control chip 9 controls the fan 8 to reduce its speed to save energy. The grease filtered by the filter screen 3 slides down along several conical oil guide rods 5 fixedly connected to the bottom of the filter screen 3. Because the bottom of the tapered oil guide rod 5 is conical, it facilitates the collection and gathering of oil. The oil eventually slides down into the inverted V-shaped oil guide groove 7 below the filter screen 3. The inverted V-shaped oil guide groove 7 guides the oil to flow to both sides and enters the oil collection box 11 fixedly connected to both sides, achieving efficient collection of oil. When the filter screen 3 needs to be replaced, by unfastening the bolt 6 between the filter screen 3 and the smoke collection box 1 and pulling the handle 4 fixedly connected to the side wall of the filter screen 3, the filter screen 3 can be removed from the bottom of the smoke collection box 1, making it convenient and quick to disassemble and replace the filter screen 3.

[0066] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adaptive flue gas pressure range hood, comprising: Smoke collection box (1); Smoke exhaust pipe (2), which is fixedly connected to the top of the smoke collection box (1); The filter screen (3), which is disposed at the bottom of the smoke collection box (1), is characterized in that it further includes: Fan (8), which is fixedly connected inside the exhaust pipe (2); Control chip (9), the control chip (9) is fixedly connected to the inner wall of the exhaust pipe (2); Wind pressure sensor (10) is fixedly connected to the inner wall of the exhaust pipe (2). The wind pressure sensor (10) is connected to the control chip (9). The fan (8) is connected to the control chip (9).

2. The adaptive flue gas pressure range hood according to claim 1, characterized in that: Bolts (6) are provided between the filter screen (3) and the smoke collection box (1), and a handle (4) is fixedly connected to the side wall of the filter screen (3).

3. The adaptive flue gas pressure range hood according to claim 1, characterized in that: The filter screen (3) is fixedly connected to two L-shaped connecting rods (12) on both sides of the bottom. The L-shaped connecting rods (12) are provided in two sets and are symmetrically arranged on both sides of the bottom of the filter screen (3).

4. The adaptive flue gas pressure range hood according to claim 1, characterized in that: The bottom of the filter screen (3) is fixedly connected with several tapered oil guide rods (5); The bottom end of the tapered oil guide rod (5) is conical.

5. The adaptive flue gas pressure range hood according to claim 1, characterized in that: An oil guide groove (7) is provided below the filter screen (3); The oil guide groove (7) is provided in several forms and is linearly distributed; Oil collection boxes (11) are fixedly connected to both sides of the oil guide groove (7); The oil collection box (11) is fixedly connected to the bottom side wall of the L-shaped connecting rod (12), and the oil guide groove (7) is located below the tapered oil guide rod (5).

6. The adaptive flue gas pressure range hood according to claim 5, characterized in that: The oil guide groove (7) is inverted V-shaped.

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