Variable air volume adjustable composite purification smoke hood

By sensing the concentration of oil fumes with a sensor and controlling the rotation of the motor to adjust the angle of the plate, the problem of traditional fume hoods being unable to adjust the airflow is solved, achieving a highly efficient and energy-saving oil fume treatment effect.

CN223691103UActive Publication Date: 2025-12-19BEIJING JINGDUN JINGXI KITCHEN EQUIP
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Patent Information

Application Number
CN202520110525.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-17
Publication Date
2025-12-19
Estimated Expiration
2035-01-17

AI Technical Summary

Technical Problem

Traditional fume hoods cannot adjust according to the amount of oil fumes generated, resulting in excessive or insufficient smoke extraction, leading to energy waste and low efficiency.

Method used

A variable air volume adjustable composite purification fume hood was designed. By sensing the concentration of oil fumes with a sensor, the motor drives the transmission shaft to rotate the angle between the adjustment plate and the adjustment groove, which flexibly controls the size of the smoke inlet opening and achieves efficient cleaning of oil fumes with the lowest energy consumption.

Benefits of technology

It automatically adjusts the air volume according to the concentration of cooking fumes, reducing energy consumption, improving smoke extraction efficiency, reducing negative pressure in the kitchen, and facilitating cleaning and maintenance.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223691103U_ABST
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Abstract

The utility model provides a variable air volume adjustable composite purification smoke hood which comprises a smoke hood body, a fixing frame and an adjusting plate, a smoke inlet is formed in the top of the smoke hood body, the fixing frame is installed at the position of the smoke inlet, four sets of adjusting grooves are sequentially formed in the fixing frame from front to back, and baffles are arranged below the front sides in the adjusting grooves. Two sets of first magnets are installed on the left side and the right side of the top of the baffle in an embedded mode, shaft holes are formed in the left side and the right side of the rear portion of the interior of the adjusting groove in a penetrating mode, and an adjusting plate is installed in the adjusting groove. By adjusting the included angles between the four sets of adjusting plates and the adjusting grooves, the opening size of the adjusting grooves can be flexibly changed, so that the smoke hood body can more efficiently treat oil smoke in a kitchen with the lowest power consumption, and by arranging the first magnet and the second magnet, the adjusting plates can be conveniently stored.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of purification smoke hood, especially relates to a variable air volume adjustable composite purification smoke hood. BACKGROUND

[0002] The kitchen purification smoke hood is also called an oil smoke extractor or a kitchen smoke hood, which is installed above the cooking area of the kitchen and is used to effectively remove the oil smoke, peculiar smell and harmful gas generated during the cooking process. During the cooking process in the kitchen, the oil smoke will gather in the kitchen, which will cause serious damage to the cooking environment and affect the health of the people in the kitchen, and will cause negative pressure in the kitchen. The purification smoke hood can effectively absorb and treat the oil smoke, but the amount and concentration of the oil smoke generated in the kitchen are related to the food materials, cooking methods and size of the cooking range, etc. The traditional purification smoke hood relies on the fan to suck the oil smoke into the cover body, and the oil smoke is guided by the air duct to be purified by the purification mechanism and then discharged from the exhaust port. Therefore, the fixed structure cannot be adjusted according to the amount of the oil smoke, which can easily cause excessive smoke exhaust or insufficient smoke exhaust, resulting in energy waste or low smoke exhaust efficiency. Therefore, a new structure is proposed to solve the above problems. SUMMARY

[0003] In view of the deficiencies in the prior art, the utility model aims to provide a variable air volume adjustable composite purification smoke hood to solve the problems in the background art.

[0004] The utility model discloses the following technical scheme realizes: a variable air volume adjustable composite purification smoke hood, comprising: a smoke cover body, a fixed frame and an adjusting plate, the top of the smoke cover body is equipped with a smoke inlet, the fixed frame is installed at the smoke inlet, four groups of adjusting grooves are sequentially arranged in the fixed frame from front to back,

[0005] The front lower side of the adjusting groove is equipped with a baffle, two groups of magnets one are inlaidly installed on the left and right sides of the top of the baffle, shaft holes are throughly arranged on the left and right sides of the rear of the adjusting groove, and an adjusting plate is installed in the adjusting groove.

[0006] Two groups of magnets two are inlaidly installed on the left and right sides of the front of the bottom of the adjusting plate, and a transmission shaft is fixedly installed on the rear side of the adjusting plate.

[0007] As a preferred embodiment, the smoke cover body is composed of a fan, a purification system, a sensor, a control circuit board, a motor control unit, a display screen and a touch control screen, and the sensor is arranged on the left and right sides of the front of the smoke cover body.

[0008] Four groups of control motors are sequentially installed from front to back inside the left side below the smoke hood body, the output ends of the control motors on the left side are respectively opposite to the shaft holes on the left side of the four groups of adjusting grooves, the four groups of control motors are synchronous servo motors, the fan, the purification system, the sensor, the control circuit board, the motor control unit, the display screen and the touch control screen are prior arts, the inductor can sense the oil fume concentration and convert it into an electric signal to transmit to the control circuit board, the control circuit board transmits the signal to the motor control power supply, controls the four groups of control motors to drive the transmission shaft to rotate, so as to flexibly control the size of the included angle between the adjusting plate and the adjusting groove, that is, according to the oil fume concentration, the size of the included angle between the adjusting plate and the adjusting groove is controlled, so that the fan can efficiently clean the oil fume with the lowest energy consumption.

[0009] As a preferred embodiment, the specifications of the four groups of adjusting grooves are completely the same, the length and width of the adjusting grooves match the length and width of the adjusting plate, the thickness of the baffle is equal to half the depth of the adjusting groove, and the thickness of the baffle is equal to the thickness of the adjusting plate.

[0010] As a preferred embodiment, the inner side behind the adjusting plate is fixed with the outer side of the transmission shaft, the left side of the transmission shaft passes through the left side shaft hole and is connected with the control motor opposite to the left side position through the shaft coupling.

[0011] As a preferred embodiment, the specifications of the shaft holes opened on the left and right sides inside the adjusting groove are the same, and the right side of the transmission shaft is placed inside the right side shaft hole.

[0012] As a preferred embodiment, the distance length between the two groups of magnet two is equal to the distance length between the two groups of magnet one, the magnet two and the magnet one are opposite in polarity, the magnet two and the magnet one are both ferrite magnets, after the top of the adjusting plate contacts the bottom of the baffle, the two groups of magnet two respectively contact and are fixed by the two groups of magnet one, so that the adjusting plate is horizontally flipped and stored at the bottom of the baffle, ensuring the flatness of the bottom of the fixed frame, thereby facilitating cleaning and maintenance.

[0013] The beneficial effects of the utility model are that the fixed frame, the baffle, the adjusting plate and the transmission shaft are arranged, the fixed frame is installed at the inner side of the bottom of the smoke hood main body, four groups of adjusting plates are installed inside the smoke inlet, the smoke amount at the smoke inlet is controlled, the adjusting plate top is in contact with the baffle bottom after the adjusting plate is turned to the horizontal state, so the baffle has the function of accommodating the adjusting plate, the adjusting plate is slowly turned inside the adjusting groove under the rotation of the transmission shaft, so the opening size of the adjusting groove can be changed flexibly, the opening size of the adjusting groove can be controlled according to the oil fume content and density, the smoke hood main body can process the oil fume inside the kitchen more efficiently with the lowest power consumption, the magnet one and the magnet two are arranged, the two groups of magnet one at the baffle bottom and the two groups of magnet two at the adjusting plate top are adsorbed and fixed after the adjusting plate is turned to the horizontal state, so the adjusting plate can be accommodated. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below, obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained according to these drawings without the creative labor for the ordinary skilled in the art.

[0015] Figure 1 It is a schematic view of the utility model variable air volume adjustable composite purification smoke hood.

[0016] Figure 2 It is a structural schematic view of the fixed frame in the utility model variable air volume adjustable composite purification smoke hood.

[0017] Figure 3 It is a structural schematic view of the utility model in the diagram A.

[0018] Figure 4 It is a schematic view of the transmission shaft in the utility model variable air volume adjustable composite purification smoke hood.

[0019] In the drawing, 100 is a smoke hood main body, 110 is a smoke inlet;

[0020] 200 is a fixed frame, 210 is an adjusting groove, 220 is a baffle, 221 is a magnet one, 230 is a shaft hole;

[0021] 300 is an adjusting plate, 301 is a magnet two, 310 is a transmission shaft. DETAILED DESCRIPTION

[0022] Clearly and completely describe the technical scheme in the embodiments of the utility model with reference to the drawings in the embodiments of the utility model, obviously, the described embodiment is only one end of the embodiment of the utility model, and is not the whole end of the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor belong to the scope of protection of the utility model.

[0023] Please refer to Figures 1 to 4 : a variable air volume adjustable composite purification smoke cover, comprising: a smoke cover main body 100, a fixed frame 200 and an adjusting plate 300, the top of the smoke cover main body 100 is provided with a smoke inlet 110, the fixed frame 200 is installed at the smoke inlet 110, four groups of adjusting grooves 210 are sequentially arranged inside the fixed frame 200 from front to back.

[0024] The inside of the adjusting groove 210 is provided with a baffle 220 at the front lower side, two groups of magnets one 221 are inlaidly installed at the top of the left and right sides of the baffle 220, shaft holes 230 are throughly arranged at the left and right sides of the rear inside of the adjusting groove 210, and the adjusting plate 300 is installed inside the adjusting groove 210.

[0025] Two groups of magnets two 301 are inlaidly installed at the left and right sides of the front bottom of the adjusting plate 300, and a transmission shaft 310 is fixedly installed at the rear side of the adjusting plate 300.

[0026] The smoke cover main body 100 is composed of a fan, a purification system, a sensor, a control circuit board, a motor control unit, a display screen and a touch control screen, and the sensor is arranged at the left and right sides of the front of the smoke cover main body 100.

[0027] Four groups of control motors are sequentially installed inside the left side of the lower part of the smoke cover main body 100 from front to back, the output ends of the left sides of the four groups of control motors are opposite to the shaft holes 230 of the left sides of the four groups of adjusting grooves 210, the four groups of control motors are synchronous servo motors, the fan, the purification system, the sensor, the control circuit board, the motor control unit, the display screen and the touch control screen are all prior art, the sensor can sense the oil fume concentration and convert it into an electric signal to be transmitted to the control circuit board, the control circuit board transmits the signal to the motor control power supply, controls the four groups of control motors to drive the transmission shaft 310 to rotate, thereby flexibly controlling the size of the included angle between the adjusting plate 300 and the adjusting groove 210, that is, controlling the size of the included angle between the adjusting plate 300 and the adjusting groove 210 according to the oil fume concentration, so that the fan can efficiently clean the oil fume with the lowest energy consumption.

[0028] The four groups of adjusting grooves 210 are completely the same in specification, the length and width of the adjusting groove 210 are matched with the length and width of the adjusting plate 300, the thickness of the baffle 220 is equal to one half of the depth of the adjusting groove 210, and the thickness of the baffle 220 is equal to the thickness of the adjusting plate 300.

[0029] The inner side behind the adjusting plate 300 is fixed with the outer side of the transmission shaft 310, and the left side of the transmission shaft 310 passes through the left shaft hole 230 and is connected with the control motor opposite to the left side through the shaft coupling.

[0030] The shaft holes 230 opened on the left and right sides inside the adjusting groove 210 are of the same specification, and the right side of the transmission shaft 310 is placed inside the right shaft hole 230.

[0031] The distance between the two groups of magnet two 301 is equal to the distance between the two groups of magnet one 221, the magnet two 301 is opposite to the magnet one 221, the magnet two 301 and the magnet one 221 are both ferrite magnets, after the top of the adjusting plate 300 contacts with the bottom of the baffle 220, the two groups of magnet two 301 respectively contact with the two groups of magnet one 221 and are fixed by adsorption, so that the adjusting plate 300 is horizontally flipped and stored at the bottom of the baffle 220, which ensures the flatness of the bottom of the fixed frame 200, thereby facilitating cleaning and maintenance.

[0032] Embodiment 1: please refer to Figures 1 to 4 In actual use, the oil fume content inside the kitchen will be different due to the area of the stove body and the cooking method, and a large amount of oil fume gathered in the kitchen will cause negative pressure inside the kitchen, so first of all, the smoke cover main body 100 is started by touching the control screen, the oil fume inside the kitchen is sensed by the two groups of sensors and the signal is converted and transmitted to the control circuit board, the control circuit board converts and transmits the signal to the motor control unit and the fan, first of all, the motor control unit will control the synchronous rotation of the four groups of control motors, so as to drive the four groups of transmission shafts 310 to rotate slowly backward, so as to adjust the included angle between the four groups of adjusting plates 300 and the adjusting groove 210, and then control the opening size of the adjusting groove 210 allowing the oil fume to pass, at the same time, the fan receives the signal, according to the rotation angle of the control motor, judges the oil fume entering amount, so as to automatically match the highest efficient fan frequency (the fan inside the smoke cover main body 100, the control circuit board, the motor control unit and the control motor are all prior art, the internal structure and working principle are not described here), when the opening of the adjusting groove 210 meets the requirement of the lowest frequency working of the fan, the control motor no longer rotates, which reduces the energy consumption and the negative pressure in the kitchen while ensuring the oil fume exhaust effect, at the same time, the smoke cover main body 100 is connected with the external control mechanism through wireless signal, such as receiver and remote controller, so as to facilitate flexible use.

[0033] Embodiment 2: please refer to Figure 2 and Figure 3When the fume hood main body 100 does not need to be used, the sensor senses the minimum threshold of the oil fume concentration, at this time, the four groups of control motors control the four groups of transmission shafts 310 to drive the four groups of adjusting plates 300 to rotate reversely and slowly, when the two groups of magnets two 301 on the top left and right sides of the adjusting plate 300 contact with the two groups of magnets one 221 on the bottom left and right sides of the front side baffle 220 of the adjusting groove 210, the two groups of magnets two 301 contact with the two groups of magnets one 221 and are adsorbed and fixed, at this time, the control motor stops rotating, so that the four groups of adjusting plates 300 shield the four groups of adjusting grooves 210, the adjusting plate 300 plays a role in controlling the size of the opening of the adjusting groove 210, thereby feeding back to the fan to make the fan automatically adjust to the appropriate frequency, thereby saving energy consumption, on the other hand, it is convenient to store in the adjusting groove 210 when the fume hood main body 100 is not used, to ensure the flatness of the bottom of the fixed frame 200, thereby facilitating the wiping and cleaning of the fixed frame 200 and the adjusting plate 300, and the use is flexible and convenient.

[0034] The above merely describes the preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A variable air volume adjustable composite cleaning hood, comprising: The utility model relates to a smoke cover body (100), fixed frame (200) and adjusting plate (300), characterized by: the smoke cover body (100) top is equipped with the smoke inlet (110), the smoke inlet (110) place is installed with fixed frame (200), the fixed frame (200) inside is equipped with four groups of adjusting groove (210) from front to back in proper order, The adjusting groove (210) inside front side lower side is equipped with the baffle (220), the baffle (220) top left and right side inlay installation has two groups of magnetism one (221), the adjusting groove (210) inside rear left and right sides are equipped with shaft hole (230), the adjusting groove (210) inside is installed with adjusting plate (300), The adjusting plate (300) bottom front left and right side inlay installation has two groups of magnetism two (301), the adjusting plate (300) rear side is equipped with transmission shaft (310) and is fixed.

2. A variable air volume adjustable hybrid cleaning hood as claimed in claim 1, wherein: The smoke cover body (100) is by fan, purification system, sensor, control circuit board, motor control unit, display screen and touch control screen are formed, the sensor is at the left and right sides of smoke cover body (100) front, The smoke cover body (100) lower left side inside is installed with four groups of control motor from front to back in proper order, the control motor left side output respectively with four groups of adjusting groove (210) left side shaft hole (230) is opposite, four groups of control motor is synchronous servo motor.

3. A variable air volume adjustable hybrid plenum hood as claimed in claim 1, wherein: Four groups of adjusting groove (210) are identical in specification, the length and width of adjusting groove (210) match the length and width of adjusting plate (300), the thickness of baffle (220) is equal to half the depth of adjusting groove (210), the thickness of baffle (220) is equal to the thickness of adjusting plate (300).

4. A variable air volume adjustable hybrid plenum hood as claimed in claim 3 wherein: The adjusting plate (300) rear inside is fixed with transmission shaft (310) outside, the transmission shaft (310) left side passes through left side shaft hole (230) and is connected with the control motor of left side position through the shaft coupling.

5. A variable air volume adjustable hybrid plenum hood as claimed in claim 3 wherein: The shaft hole (230) of left and right sides of adjusting groove (210) is identical in specification, the transmission shaft (310) right side is placed in right side shaft hole (230) inside.

6. A variable air volume adjustable hybrid plenum hood as claimed in claim 1, wherein: The distance length between two groups of magnetism two (301) is equal to the distance length between two groups of magnetism one (221), the magnetism two (301) and magnetism one (221) opposite poles, the magnetism two (301) and magnetism one (221) are ferrite magnet.