CN110631074B - Air curtain angle adjustable air curtain fume exhaust fan - Google Patents

Air curtain angle adjustable air curtain fume exhaust fan Download PDF

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Publication number
CN110631074B
CN110631074B CN201810660502.5A CN201810660502A CN110631074B CN 110631074 B CN110631074 B CN 110631074B CN 201810660502 A CN201810660502 A CN 201810660502A CN 110631074 B CN110631074 B CN 110631074B
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China
Prior art keywords
air curtain
angle
range hood
air
condition
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CN201810660502.5A
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CN110631074A (en
Inventor
孟永哲
艾希顺
张智
盖其高
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Qingdao Haier Wisdom Kitchen Appliance Co Ltd
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Qingdao Haier Wisdom Kitchen Appliance Co Ltd
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Publication of CN110631074A publication Critical patent/CN110631074A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/20—Removing cooking fumes
    • F24C15/2021—Arrangement or mounting of control or safety systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/20—Removing cooking fumes
    • F24C15/2028—Removing cooking fumes using an air curtain

Abstract

The invention discloses an air curtain angle adjustable air curtain range hood, which comprises: an air curtain device for forming an air curtain; the fan device is used for providing power for the range hood to absorb the oil smoke; and the angle adjusting device is connected with the air curtain device, and adjusts the air curtain angle of the air curtain device and/or prompts the judgment result and/or prompts the operation suggestion according to the data of the gas condition in the working area and the working state of the fan device. The air curtain angle adjustable air curtain range hood introduced by the invention comprehensively evaluates the air curtain angle of the air curtain device from a plurality of angles such as the working state of the range hood, the surrounding environment state and the like, and further properly adjusts the air curtain angle.

Description

Air curtain angle adjustable air curtain fume exhaust fan
Technical Field
The invention belongs to the field of kitchen air purification equipment, and particularly relates to an air curtain angle-adjustable air curtain range hood.
Background
Kitchen cleaning equipment in the prior art relies on air flow to improve the kitchen gas environment. At present, most of the equipment is the range hood and the related improved equipment, and the types of the equipment are various, and the equipment has double cylinders, single cylinders, a cover type, upper air suction, lower air suction and the like. However, these range hoods are passive air suction devices, and the oil smoke suction port is a certain distance away from the cooking device that generates oil smoke, so that the oil smoke having certain kinetic energy and generated instantaneously during cooking cannot be completely removed. In order to solve the above problems, manufacturers of kitchen cleaning equipment often improve the range hood in a manner of changing the height and working power thereof, so that the fume suction effect is improved, but the problem of the fume overflowing from the periphery of the cooker still cannot be solved. In addition, the problem of oil smoke escape cannot be solved by increasing the area of the range hood cage to control the rising oil smoke below the smoke hood, increasing the power of the main motor and enhancing the smoke exhaust effect by large suction force. Therefore, how to effectively block the oil smoke from escaping becomes a problem which needs to be solved urgently. The performance requirements of consumers on kitchen air purification equipment are higher and higher, the large suction force becomes the pursuing target of various big merchants, but the problems of incomplete suction, oil smoke overflow and the like cannot be solved by the range hood sold on the market at present, a small part of range hood escapes from the front part of the machine in the cooking process, directly attacks clothes, hair and faces of cookers, is harmful to the skin of the faces, induces respiratory diseases if being sucked by human bodies for a long time, and directly influences the body health of the users. Therefore, the range hood in the prior art is provided with an air curtain device for solving the problem of oil smoke escape so as to isolate the user from the escaping oil smoke when the user uses the range hood. However, how reasonable control the intensity of air curtain air current for the intensity of air curtain air current suits with current culinary art environment, when forming effectual air curtain air current, avoids air curtain air current too strong, arouses unnecessary consumption and noise, becomes the problem that awaits a urgent need to be solved. In addition, the air curtain device in the prior art needs the air curtain fan to provide air flow, so that the noise and energy consumption of the equipment are obviously increased, and the system burden and the control burden of the equipment are increased by independently setting the control system aiming at the air curtain device.
The present invention has been made in view of this situation.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides an air curtain angle adjustable range hood, which is additionally provided with a state acquisition device and an angle adjustment device, and comprehensively evaluates the air curtain angle of an air curtain device from a plurality of angles such as the working state of the range hood, the surrounding environment state and the like so as to properly adjust the air curtain angle.
In order to solve the technical problems, the invention adopts the technical scheme that:
an air curtain range hood with adjustable air curtain angle comprises:
an air curtain device for forming an air curtain;
the fan device is used for providing power for the range hood to absorb the oil smoke;
and the angle adjusting device is connected with the air curtain device, and adjusts the air curtain angle of the air curtain device and/or prompts the judgment result and/or prompts the operation suggestion according to the data of the gas condition in the working area and the working state of the fan device.
The invention is further configured to: the data of the working zone gas conditions comprises a concentration of a target gas;
preferably, the data of the gas condition of the working area are divided into a plurality of data according to different target gases;
preferably, the data of the gas condition of the working area comprises oil smoke condition data and/or moisture condition data and/or smoke condition data;
preferably, the data of the gas condition of the working area is obtained by a gas condition obtaining device, and the gas condition obtaining device comprises an oil smoke obtaining module for obtaining the oil smoke condition data and/or a moisture obtaining module for obtaining the moisture condition data and/or a smoke obtaining module for obtaining the smoke condition data.
The invention is further configured to: the angle adjusting device respectively compares the data of the gas condition of the working area, the working state of the fan device and the current air curtain angle of the air curtain device, and adjusts the air curtain angle of the air curtain device according to the comparison result;
preferably, the order of the judgments made according to the operating state of the fan device precedes the order of the judgments made according to the data of the gas condition of the working area.
The invention is further configured to: the angle adjusting device judges whether the air curtain angle of the air curtain device is adjusted according to the working state of the fan device and the current air curtain angle of the air curtain device; adjusting the air curtain angle of the air curtain device according to the judgment result of the fan state and/or prompting the judgment result and/or prompting an operation suggestion;
preferably, when the result of the fan state judgment is negative, no corresponding adjustment is performed;
preferably, when the result of the fan state judgment is yes, corresponding adjustment is performed.
The invention is further configured to: if so, judging whether the air curtain angle of the air curtain device is adjusted according to the data of the air condition of the working area and the current air curtain angle of the air curtain device; adjusting the air curtain angle of the air curtain device according to the result of the gas condition judgment and/or prompting the judgment result and/or prompting an operation suggestion;
preferably, if the result of the gas condition judgment is yes, corresponding adjustment is carried out;
preferably, if the result of the gas condition judgment is no, the corresponding adjustment is not performed, and after waiting for a predetermined time, the gas condition judgment is performed again.
The invention is further configured to: the gas condition determination is performed separately for different target gases;
preferably, the gas condition judgment comprises oil smoke condition judgment and/or moisture condition judgment and/or smoke condition judgment;
preferably, only when the result of the oil smoke condition judgment and/or the smoke condition judgment is yes, corresponding adjustment is carried out;
preferably, the moisture threshold value judged by the moisture condition is greater than the lampblack threshold value judged by the lampblack condition and/or the lampblack threshold value judged by the smoke condition.
The invention is further configured to: when the gas condition judgment result is yes, verifying the judgment result;
preferably, the method for verifying comprises: performing gas condition judgment again after a preset time interval, and if the judgment results of the adjacent N times are yes, performing corresponding adjustment;
preferably, N.gtoreq.2.
The invention is further configured to: the fan state determination is performed when the operating state of the fan device changes relative to the previous time.
The invention is further configured to: when the working state of the fan device changes, the angle adjusting device verifies whether the change is effective; implementing the fan state determination only for valid changes;
preferably, the method for verifying comprises: recording the duration time of the change, and if the time reaches a corresponding duration time threshold value, determining that the change is effective;
preferably, the duration threshold is ≧ 5 s.
The invention is further configured to: the gas condition comprises the composition and/or content of the gas;
preferably, the work area comprises: the range of suction of the range hood;
preferably, the operating state of the fan device includes: wind power gear and fan rotating speed;
preferably, the air curtain angle of the air curtain device includes: the primary angle of the air curtain airflow relative to the vertical direction and/or the secondary angle of the angular coverage range of the air curtain airflow at the air outlet of the air curtain device, which is perpendicular to the movement direction of the air curtain airflow, are/is set;
preferably, the order of adjustment for the primary angles precedes the order of adjustment for the secondary angles.
The invention further introduces an air curtain angle adjustable air curtain range hood, which comprises:
an air curtain device for forming an air curtain;
the fan device is used for providing power for the range hood to absorb the oil smoke;
and the angle adjusting device is connected with the air curtain device, and adjusts the air curtain angle of the air curtain device and/or prompts an air curtain angle judgment result and/or prompt operation suggestion according to the working state of the fan device.
The invention is further configured to: after obtaining the working state of the fan device and the current working state of the air curtain device, the angle adjusting device judges whether the corresponding relation between the two is within the range of the corresponding angle threshold value, and adjusts the air curtain angle of the air curtain device according to the judgment result and/or prompts an operation suggestion;
preferably, the operating state of the fan device includes: wind power gear and fan rotating speed;
preferably, if the judgment result is negative, the air curtain angle of the air curtain device is adjusted.
The invention is further configured to: the air curtain angle comprises a primary angle of the air curtain airflow relative to the vertical direction and/or a secondary angle of an angle coverage range of the air curtain airflow at the air outlet of the air curtain device, wherein the angle coverage range is perpendicular to the movement direction of the air curtain airflow.
The invention is further configured to: the adjusting sequence of the primary angle is prior to the adjusting sequence of the secondary angle;
preferably, after the primary angle is adjusted, whether the corresponding relationship between the working state of the fan device and the current working state of the air curtain device is within a corresponding angle threshold range is judged, and if yes, the secondary angle is not adjusted.
The invention is further configured to: the adjustment range of the primary angle is 0 DEG to +/-15 DEG relative to the vertical direction.
The invention is further configured to: the working state of the fan device is obtained by a control system of the range hood, and the control system of the range hood comprises an input device of the range hood;
preferably, the work area comprises: the range of action of the suction of the range hood.
The invention is further configured to: and when the working state of the fan device changes, the angle adjusting device starts to work.
The invention is further configured to: the adjusting mode of the air curtain angle is determined according to the change condition of the working state of the fan device;
preferably, when the change of the working state of the fan device tends to increase/decrease the suction force, the angle of the air curtain tends to be adjusted away from/close to the suction opening of the range hood.
The invention is further configured to: the air outlet direction/angle direction of the air outlet of the air curtain device is adjustable;
preferably, an air deflector is arranged at an air outlet of the air curtain device, and the deflection angle of the air deflector is adjustable;
preferably, the number of the air outlets of the air curtain device is multiple, and the air outlets of the air curtain device surround the smoke collecting cavity of the air curtain range hood.
The invention is further configured to: at least part of the power of the air flow required by the air curtain device for forming the air curtain is provided by the fan device;
preferably, the air duct of the air curtain device is communicated with the air duct of the fan device;
preferably, the air curtain device is arranged in a cavity formed by a shell of the air curtain range hood;
preferably, the air curtain device is a structure with a through cavity inside;
preferably, the air inlet of the air curtain device is communicated with the air duct of the fan device;
preferably, the air inlet of the air curtain device is arranged facing the direction of the air flow in the air duct of the fan device.
The invention further introduces an air curtain angle adjustable air curtain range hood, which comprises:
an air curtain device for forming an air curtain;
the fan device is used for providing power for the range hood to absorb the oil smoke;
the state acquisition device is used for acquiring the air curtain angle of the air curtain device, the working state of the fan device and the surrounding environment state of the range hood and generating corresponding data;
and the angle adjusting device is connected with the air curtain device and the state acquiring device and adjusts the air curtain angle of the air curtain device according to the data acquired by the state acquiring device.
The invention is further configured to: the state acquisition device acquires the air curtain angle of the air curtain device and/or the working state of the fan device and/or the duration of the change of the environmental state around the range hood, and when the duration reaches a corresponding threshold value, corresponding data are sent to the angle adjustment device;
preferably, the time period is not less than 5 s.
The invention is further configured to: the range hood comprises a position acquisition unit for acquiring the position of a user;
preferably, the state acquiring device and/or the angle adjusting device are connected with the position acquiring unit, and the working state of the state acquiring device and/or the angle adjusting device is controlled by the position acquiring unit;
preferably, when the distance between the user and the range hood reaches or does not reach the corresponding position threshold value, the position acquisition unit acquires that at least one of the state acquisition device and the angle adjustment device is turned on/off, and/or prompts the acquisition result of the position of the user and/or prompts an operation suggestion.
The invention is further configured to: the position threshold is divided into a plurality of positions according to the range of oil smoke diffusion;
preferably, the position threshold comprises a first position threshold at which a user is located in a working area close to the range hood, and a second position threshold at which the user is located in a working area far away from the range hood but not exceeding an indoor environment in which the range hood is located;
preferably, when the position acquiring unit acquires that the position of the user does not exceed a first position threshold, the state acquiring device and/or the angle adjusting device are/is started;
preferably, when the position acquiring unit acquires that the position of the user exceeds a second position threshold, the state acquiring device and/or the angle adjusting device are/is closed;
preferably, when the position acquisition unit acquires that the position of the user is between the first position threshold and the second position threshold, the acquisition result of the position of the user and/or the operation suggestion are/is prompted;
preferably, the work area comprises: the range of action of the suction of the range hood.
The invention is further configured to: after the angle adjusting device obtains the data obtained by the state obtaining device, judging whether the corresponding relation among the data is in a corresponding threshold range, and adjusting the air curtain angle of the air curtain device according to the judgment result and/or prompting an operation suggestion;
preferably, the operating state of the fan device includes: wind power gear and fan rotating speed;
preferably, the curtain angle comprises a primary angle of the curtain airflow relative to the vertical and/or a secondary angle of angular coverage of the curtain airflow at the air outlet of the curtain device perpendicular to its direction of movement.
The invention is further configured to: the environmental states include: ambient temperature and/or ambient humidity and/or ambient oil smoke content;
preferably, the data acquisition method of the state acquisition device is detection acquisition.
The invention is further configured to: the angle adjusting device judges whether the corresponding relation between the air curtain angle of the air curtain device and the working state of the fan device exceeds a corresponding threshold value or not according to the air curtain angle of the air curtain device and the working state of the fan device, and if the judgment result is yes, the angle adjusting device adjusts the air curtain angle of the air curtain device and/or prompts the judgment result and/or prompts an operation suggestion;
preferably, when the corresponding relation between one of the primary angle and the secondary angle and the working state of the fan device exceeds a corresponding threshold value, the primary angle/the secondary angle of the air curtain device is adjusted, and/or the judgment result and/or the operation suggestion are/is prompted;
preferably, when the corresponding relation between the primary angle and the secondary angle and the working state of the fan device exceeds a corresponding threshold value, the primary angle and/or the secondary angle of the air curtain device is adjusted, and/or the judgment result is prompted and/or an operation suggestion is prompted; and after waiting for a predetermined time, the judgment is performed again.
The invention is further configured to: when the corresponding relation between the air curtain angle and the working state of the fan device exceeds a corresponding threshold value, further judging the adjustment amplitude of the air curtain angle and/or prompting the judgment result and/or prompting an operation suggestion according to the surrounding environment state of the range hood;
preferably, when the environmental temperature and/or the environmental humidity and/or the environmental oil smoke content of the environmental state exceed the corresponding threshold values, the air curtain device is closed or the air curtain device is adjusted in a delayed mode or the air curtain is adjusted to be far away from the range hood, or the judgment result and/or the operation suggestion are/is prompted;
preferably, the operating recommendation includes increasing the power of a fan of the range hood.
The invention is further configured to: when the user is within the range of the first position threshold, the degree of increasing adjustment of the air curtain airflow intensity is greater than the degree of increasing adjustment of the user within the range of the first position threshold and the second position threshold;
preferably, the degree of reduced adjustment to the curtain airflow intensity is less when the user is within the first range of positional thresholds than when the user is within the first and second ranges of positional thresholds.
The invention is further configured to: the range hood comprises a fan device for providing power for absorbing oil smoke; at least part of the power of the air flow required by the air curtain device for forming the air curtain is provided by the fan device;
preferably, the air duct of the air curtain device is communicated with the air duct of the fan device;
preferably, the air curtain device is arranged in a cavity formed by a shell of the air curtain range hood;
preferably, the air curtain device is a structure with a through cavity inside;
preferably, at least part of the air duct of the air curtain device is composed of a smoke collection cavity cover plate and a shell of the air curtain range hood.
The invention further introduces an air curtain angle adjustable air curtain range hood, which comprises:
an air curtain device for forming an air curtain;
the fan device is used for providing power for the range hood to absorb the oil smoke;
the working area condition acquisition device is used for acquiring the condition of the working area of the range hood and generating corresponding working area condition data;
the checking device is connected with the fan device, acquires working state data of the fan device, and checks the working state data of the fan device according to the working area condition data to generate checking data;
and the angle adjusting device is connected with the air curtain device and the checking device and adjusts the air curtain angle of the air curtain device according to the checking data.
The invention is further configured to: the conditions of the workspace include: the temperature of the working area, the humidity of the working area, the oil smoke concentration of the working area, the temperature field distribution of the working area, and the airflow direction and/or intensity of the working area;
preferably, the working area condition obtaining device and/or the verifying device and/or the angle adjusting device work in real time after the range hood is started, and adjust the air curtain angle of the air curtain device in real time;
preferably, the working area condition obtaining device and/or the verifying device and/or the angle adjusting device periodically work after the range hood is started, and periodically adjust the air curtain angle of the air curtain device.
The invention is further configured to: after the angle adjusting device obtains the verification data and the current air curtain angle of the air curtain device, judging whether the corresponding relation between the verification data and the current air curtain angle of the air curtain device is within a corresponding threshold range, and adjusting the air curtain angle of the air curtain device according to the judgment result and/or prompting an operation suggestion;
preferably, the working state of the fan device is obtained by a control system of the range hood, and the control system of the range hood comprises an input device of the range hood;
preferably, the operating state of the fan device includes: wind power gear and fan rotating speed;
preferably, the work area comprises: the range of action of the suction of the range hood.
The invention is further configured to: the air curtain angle of the air curtain device comprises a first-stage angle of air curtain airflow relative to the vertical direction and/or a second-stage angle of an angle coverage range of the air curtain airflow at the air outlet of the air curtain device, wherein the angle coverage range is perpendicular to the movement direction of the air curtain airflow.
The invention is further configured to: the working area condition acquisition device judges the effectiveness of the working area condition data before sending the working area condition data to the verification device;
preferably, the working area condition obtaining device judges the validity of the working area condition data obtained by the working area condition obtaining device at the current stage, and when the working area condition data is valid data, the data is sent to the verifying device; and when the working area condition data is invalid data, sending the working area condition data of the previous stage to the checking device.
The invention is further configured to: the working area condition acquisition device takes the stability of the working area condition data as one of the standards for judging whether the working area condition data is effective or not;
preferably, when the fluctuation condition of the working area condition data of the current stage is within the corresponding stability threshold range, the working area condition data is judged to be valid data, and otherwise, the working area condition data is judged to be invalid data.
The invention is further configured to: the fluctuation condition includes a degree of deviation of the workspace status data from the historical data.
The invention is further configured to: the fluctuation condition comprises the accumulated time of the working area condition data exceeding the standard value;
preferably, the range of the standard value of the working area condition data is 60% -90% of the average value/maximum value of the working area condition data.
The invention is further configured to: the working area condition acquisition device acquires the duration of change of the working area condition data, and when the duration reaches a corresponding threshold value, corresponding data are sent to the verification device;
preferably, the time period is not less than 5 s.
The invention is further configured to: the angle adjusting device judges according to the air curtain angle of the air curtain device and the working state of the fan device, and if the corresponding relation of the air curtain angle of the air curtain device and the working state of the fan device exceeds a corresponding threshold value, the angle adjusting device adjusts the air curtain angle of the air curtain device and/or prompts the judging result and/or prompts an operation suggestion;
preferably, when the corresponding relation between one of the primary angle and the secondary angle and the working state of the fan device exceeds a corresponding threshold value, the primary angle/the secondary angle of the air curtain device is adjusted, and/or the judgment result and/or the operation suggestion are/is prompted;
preferably, when the corresponding relation between the primary angle and the secondary angle and the working state of the fan device exceeds a corresponding threshold value, the primary angle/the secondary angle of the air curtain device is adjusted, and/or the judgment result and/or the operation suggestion are/is prompted; after waiting for a preset time, judging again;
preferably, the range hood prompts a user to select a judgment mode in the use process of the range hood when being started.
The invention is further configured to: the range hood comprises a position acquisition unit for acquiring the position of a user;
preferably, the working area condition acquiring device and/or the verifying device and/or the angle adjusting device are connected with the position acquiring unit, and the working state of the working area condition acquiring device and/or the verifying device and/or the angle adjusting device is controlled by the position acquiring unit;
preferably, when the position acquiring unit acquires that the distance between the user and the range hood reaches or does not reach the corresponding position threshold, the state acquiring device and/or the verifying device and/or the angle adjusting device are/is turned on/off and/or the acquisition result of the position of the user is prompted and/or the operation suggestion is prompted.
The invention is further configured to: the position threshold is divided into a plurality of ranges according to the range of oil smoke diffusion, and the range hood has different adjustment degrees when a user is in different position threshold ranges;
preferably, the position threshold value comprises a first position threshold value indicating that a user is located in a working area close to the range hood and a second position threshold value indicating that the user is located in a working area far away from the range hood and does not exceed an indoor environment in which the range hood is located;
preferably, when the position acquiring unit acquires that the position of the user does not exceed a first position threshold, the state acquiring device and/or the verifying device and/or the angle adjusting device are/is started;
preferably, when the position acquiring unit acquires that the position of the user exceeds a second position threshold, the state acquiring device and/or the verifying device and/or the angle adjusting device are/is closed;
preferably, when the position acquisition unit acquires that the position of the user is between the first position threshold and the second position threshold, the acquisition result of the position of the user and/or the operation suggestion are/is prompted;
preferably, the work area comprises: the lower part of the range hood;
preferably, when the user is in the first position threshold range, the degree of the increase adjustment of the air curtain angle is greater than the degree of the increase adjustment of the user in the first position threshold range and the second position threshold range;
preferably, the degree of the decreasing adjustment of the air curtain angle by the user is less when the user is within the first position threshold range than when the user is within the first and second position threshold ranges.
The invention further introduces an air curtain angle adjustable air curtain range hood, which comprises:
an air curtain device for forming an air curtain;
the fan device is used for providing power for the range hood to absorb the oil smoke;
the correcting device generates a corresponding correction value according to the condition of the working area of the range hood;
and the angle adjusting device is connected with the air curtain device and adjusts the air curtain angle of the air curtain device according to the correction value and the working state of the fan device.
The invention is further configured to: the correcting device generates the correcting value when the range hood is started every time and sends the correcting value to the angle adjusting device.
The invention is further configured to: the correction device acquires the working state of the fan device, generates the correction value and sends the correction value to the angle adjustment device when a user adjusts the fan device each time.
The invention is further configured to: the correcting device periodically generates the correcting value and sends the correcting value to the angle adjusting device;
preferably, the length of the period is automatically generated and/or adjusted by the system;
preferably, the length of the period is set by a user.
The invention is further configured to: the conditions of the workspace include: the temperature of the working area, the humidity of the working area, the oil smoke concentration of the working area, the temperature field distribution of the working area, and the airflow direction and/or intensity of the working area;
preferably, the work area comprises: the range of action of the suction of the range hood;
preferably, the adjustment of the air curtain angle of the air curtain device by the angle adjusting device is real-time adjustment/periodic adjustment/adjustment each time a user adjusts the working state of the fan device.
The invention is further configured to: the air curtain angle of the air curtain device comprises: the primary angle of the air curtain airflow relative to the vertical direction and/or the secondary angle of the angular coverage range of the air curtain airflow at the air outlet of the air curtain device, which is perpendicular to the movement direction of the air curtain airflow, are/is set;
preferably, the order of adjustment for the primary/secondary angles precedes the order of adjustment for the secondary/primary angles;
preferably, after one of the primary angle and the secondary angle is adjusted, whether the corresponding relationship between the air curtain angle and the working state of the fan device is within the corresponding relationship threshold range is judged, and if yes, the air curtain angle is not adjusted;
preferably, the working state of the fan device is obtained by a control system of the range hood;
preferably, the operating state of the fan device includes: wind gear, fan speed, and wind gear data input by a user.
The invention is further configured to: the angle adjusting device calculates according to the correction value and the working state of the fan device to obtain a working state data actual value of the fan device, and adjusts the air curtain angle of the air curtain device and/or prompts the judgment result and/or prompts an operation suggestion according to the working state data actual value;
preferably, the angle adjusting device determines whether the actual value of the working state data of the fan device and the current corresponding relationship of the air curtain angle of the air curtain device are within the corresponding threshold range of the corresponding relationship, and adjusts the air curtain angle of the air curtain device according to the determination result.
The invention is further configured to: when the range hood is started, prompting a user to select an adjustment mode in the using process of the range hood;
preferably, the adjusting mode comprises automatic control of the range hood and/or prompting of the judgment result and/or prompting of an operation suggestion.
The invention is further configured to: when the corresponding relation between one of the primary angle and the secondary angle and the working state data of the fan device exceeds a corresponding threshold value, adjusting the primary angle/the secondary angle of the air curtain device, and/or prompting the judgment result and/or prompting an operation suggestion;
preferably, when the corresponding relation between the primary angle and the secondary angle and the working state of the fan device exceeds a corresponding threshold value, the primary angle/the secondary angle of the air curtain device is adjusted, and/or the judgment result and/or the operation suggestion are/is prompted; and after waiting for a predetermined time, the judgment is performed again.
The invention is further configured to: the range hood comprises a position acquisition unit for acquiring the position of a user;
preferably, the correcting device and/or the angle adjusting device are connected with the position acquiring unit, and the working state of the correcting device and/or the angle adjusting device is controlled by the position acquiring unit;
preferably, when the distance between the user and the range hood reaches or does not reach the corresponding position threshold value, the position acquisition unit acquires that the correction device and/or the angle adjustment device are/is turned on/off and/or prompts the acquisition result of the position of the user and/or prompts an operation suggestion.
The invention further introduces an air curtain angle adjustable air curtain range hood, which comprises:
an air curtain device for forming an air curtain;
the fan device is used for providing power for the range hood to absorb the oil smoke;
the gas condition acquisition device is used for acquiring the gas condition of the working area of the range hood and generating corresponding data of the gas condition of the working area;
and the angle adjusting device is connected with the air curtain device, and adjusts the air curtain angle of the air curtain device and/or prompts the judgment result and/or prompts the operation suggestion according to the data of the gas condition of the working area and the working state of the fan device.
The invention is further configured to: the angle adjusting device respectively compares the data of the gas condition of the working area, the working state of the fan device and the current air curtain angle of the air curtain device, and adjusts the air curtain angle of the air curtain device according to the comparison result;
preferably, the order of the judgment according to the data of the gas condition of the working area is prior to the order of the judgment according to the working state of the fan device;
preferably, the order of adjustment for the primary angles precedes the order of adjustment for the secondary angles.
The invention is further configured to: the angle adjusting device judges whether the air curtain angle of the air curtain device is adjusted according to the data of the air condition of the working area and the current air curtain angle of the air curtain device; adjusting the air curtain angle of the air curtain device according to the result of the gas condition judgment and/or prompting the judgment result and/or prompting an operation suggestion;
preferably, when the result of the gas condition judgment is yes, corresponding adjustment is performed.
The invention is further configured to: if the gas condition judgment result is negative, judging the fan state according to the working state of the fan device and the current air curtain angle of the air curtain device; adjusting the air curtain angle of the air curtain device according to the judgment result of the fan state and/or prompting the judgment result and/or prompting an operation suggestion;
preferably, when the result of the fan state judgment is yes, corresponding adjustment is performed.
The invention is further configured to: when the gas condition judgment result is yes, verifying the judgment result;
preferably, the method for verifying comprises: performing gas condition judgment again after a preset time interval, and if the judgment results of N times of continuous judgment are yes, performing corresponding adjustment;
preferably, N.gtoreq.2.
The invention is further configured to: the gas condition comprises the composition and/or content of the gas;
preferably, the work area comprises: the range of action of the suction of the range hood;
preferably, the operating state of the fan device includes: wind power gear and fan rotating speed;
preferably, the curtain angle comprises a primary angle of the curtain airflow relative to the vertical and/or a secondary angle of angular coverage of the curtain airflow at the air outlet of the curtain device perpendicular to its direction of movement.
The invention is further configured to: the range hood comprises a position acquisition unit for acquiring the position of a user, and the position acquisition unit controls the working state of components of the range hood;
preferably, the gas condition acquisition device and/or the angle adjustment device are connected with the position acquisition unit, and the working state of the gas condition acquisition device and/or the angle adjustment device is controlled by the position acquisition unit;
preferably, when the distance between the user and the range hood reaches or does not reach the corresponding position threshold value, the position acquisition unit acquires that the gas condition acquisition device and/or the angle adjustment device are/is turned on/off and/or prompts the acquisition result of the position of the user and/or prompts an operation suggestion.
The invention is further configured to: when the corresponding relation between one of the primary angle and the secondary angle and the working state of the fan device exceeds a corresponding threshold value, adjusting the primary angle/the secondary angle of the air curtain device, and/or prompting the judgment result and/or prompting an operation suggestion;
preferably, after waiting for a predetermined time, the judgment is performed again;
preferably, the judgment is a fan state judgment.
The invention is further configured to: and executing the gas state judgment again within the set time waiting after the gas state judgment until the judgment result is negative.
The invention is further configured to: and executing the fan state judgment again within the set time waiting after the fan state judgment until the judgment result is negative.
After the technical scheme is adopted, compared with the prior art, the invention has the following beneficial effects.
1. The air curtain angle adjustable air curtain range hood introduced by the invention brings the gas condition in the working area of the range hood into the index for evaluating the working state of the air curtain device. The angle adjusting device takes the gas condition in the working area as one of evaluation bases when the air curtain angle of the air curtain device is adjusted through the working state of the fan device, and only when the cooking environment can be influenced by the adjustment of a user for the fan device, the air curtain device is adjusted, so that the adjustment blindness is avoided.
2. According to the air curtain angle adjustable air curtain range hood introduced by the invention, the angle adjusting device evaluates every two data obtained by the angle adjusting device, and the adjusting mode and the adjusting amplitude are determined after the evaluation results are integrated.
3. According to the air curtain angle adjustable air curtain range hood introduced by the invention, when evaluation/judgment is carried out, the adjustment operation of a user on the fan device is taken as a priority item, generally, the change of the cooking environment is possible to be generated only when the working state of the fan device is changed, and after the evaluation is finished on the change value of the current working state of the air curtain device and the working state of the fan device, subsequent evaluation/judgment is carried out, so that the change of the gas environment of a working area can be more timely responded.
4. According to the air curtain angle-adjustable air curtain range hood introduced by the invention, when the air curtain device is adjusted according to the fan state judgment result, the adjustment is carried out, the judgment of the gas condition is not continued, and the state change of the fan device is taken as the main point, so that the adjustment is more sensitive, and the oil smoke is shielded to the greatest extent. The purpose of the fan state judgment is to evaluate the possibility that the air curtain airflow is sucked into the air suction opening, and when the result of the fan state judgment is yes, the possibility that the air curtain airflow is sucked into the air suction opening is high.
5. According to the air curtain angle adjustable air curtain range hood introduced by the invention, when the judgment result of the fan state is yes, the gas condition is judged, the influence of the adjustment of the fan device on the cooking environment is fully considered, and the air curtain angle of the air curtain device is adjusted only when the influence actually occurs.
6. The air curtain angle adjustable air curtain range hood introduced by the invention distinguishes and treats the gas components in the working area, and the result of gas condition judgment is determined to be yes only when the concentration of oil smoke or smoke reaches a certain value. The water vapor is excluded because it has less influence on the user. Alternatively, if the threshold value for the moisture state determination is set to a large value, the result of the gas state determination is determined to be yes only when the water vapor is serious.
7. According to the air curtain angle-adjustable air curtain range hood introduced by the invention, when the result of the gas condition judgment is yes, the judgment result is further verified, so that the fluctuation of the gas condition in a working area can be filtered, and the probability of misjudgment is reduced.
8. The air curtain angle adjustable air curtain range hood introduced by the invention limits the starting time of the fan state judgment, and the fan state judgment is only started when a user adjusts the kitchen range, and the judgment is not performed at other times.
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention to the right. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
fig. 1 is a left-view structural sectional view of an air curtain range hood in one embodiment of the invention;
fig. 2 is a schematic view of a bottom-view direction structure of an air curtain range hood in an embodiment of the invention.
In the figure: 10. air curtain range hood; 1. a housing; 11. a housing member; 21. an air inlet of the air curtain device; 23. an air outlet of the air curtain device; 24. an air inlet part; 25. a transition section; 26. a guide section; 27. an air storage section; 31. a fan; 32. an air duct of the fan device; 33. an air outlet of the fan device; 4. a smoke collection cavity cover plate; 5. a closure; 6. an impurity removal unit; 7. a temperature adjusting part.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The invention introduces an air curtain angle adjustable air curtain range hood, which comprises:
an air curtain device for forming an air curtain;
the fan device is used for providing power for the range hood to absorb the oil smoke;
and the angle adjusting device is connected with the air curtain device, and adjusts the air curtain angle of the air curtain device and/or prompts the judgment result and/or prompts an operation suggestion according to the data of the working area gas condition indicating the gas condition in the working area and the working state of the fan device. The air curtain angle adjustable air curtain range hood introduced by the invention brings the gas condition in the working area of the range hood into the index for evaluating the working state of the air curtain device. The angle adjusting device takes the gas condition in the working area as one of evaluation bases when the air curtain angle of the air curtain device is adjusted through the working state of the fan device, and only when the cooking environment can be influenced by the adjustment of a user for the fan device, the air curtain device is adjusted, so that the adjustment blindness is avoided.
Example one
In the air curtain angle-adjustable air curtain range hood described in this embodiment, the data of the gas condition in the working area is used to indicate the concentration of the target gas, and the target gas includes oil smoke, water vapor, etc. The data of the working area gas condition are divided into a plurality of data according to different target gases, and the data of the working area gas condition comprise oil smoke condition data and/or moisture condition data and/or smoke condition data.
Further, in this embodiment, the data of the gas condition in the working area is obtained by a gas condition obtaining device, where the gas condition obtaining device includes a lampblack obtaining module for obtaining the lampblack condition data, and/or a moisture obtaining module for obtaining the moisture condition data, and/or a smoke obtaining module for obtaining the smoke condition data. The range hood in the embodiment further divides the gas condition of the working area, respectively collects different data, and performs investigation at different levels, so that the equipment can accurately judge the environment of the working area.
Example two
The difference between the air curtain angle adjustable air curtain range hood introduced in this embodiment and the above embodiments is: the angle adjusting device respectively compares the data of the gas condition of the working area, the working state of the fan device and the current working state of the air curtain device, and adjusts the air curtain angle of the air curtain device according to the comparison result. And the angle adjusting device evaluates every two data obtained by the angle adjusting device, integrates the evaluation results and determines the adjusting mode and the adjusting amplitude.
Further, the order of the judgment of the operating state of the fan device in this embodiment is prior to the order of the judgment according to the data of the gas condition of the working area. When the evaluation/judgment is carried out, the adjustment operation of the fan device by a user is taken as a priority item, generally, the change of the cooking environment is possible to be generated only when the working state of the fan device is changed, and after the evaluation is finished on the change value of the current working state of the air curtain device and the working state of the fan device, the subsequent evaluation/judgment is carried out, so that the change of the gas environment of the working area can be more timely responded.
EXAMPLE III
The difference between the air curtain angle adjustable air curtain range hood introduced in this embodiment and the above embodiments is: the angle adjusting device judges whether the air curtain angle of the air curtain device is adjusted according to the working state of the fan device and the current working state of the air curtain device; adjusting the air curtain angle of the air curtain device according to the judgment result of the fan state and/or prompting the judgment result and/or prompting an operation suggestion;
further, if the result of the fan state determination in this embodiment is negative, then no corresponding adjustment is performed. When the fan state judgment result is that the adjustment of the air curtain device should be implemented, the adjustment is implemented, the judgment of the gas condition is not continued, the state change of the cooker is taken as the main point, the adjustment is more sensitive, and the hidden danger of oil smoke pollution is eliminated to the maximum extent.
Example four
The difference between the air curtain angle adjustable air curtain range hood introduced in this embodiment and the above embodiments is: if so, judging whether the air curtain angle of the air curtain device is adjusted according to the data of the air condition of the working area and the current working state of the air curtain device; and adjusting the air curtain angle of the air curtain device according to the result of the gas condition judgment and/or prompting the judgment result and/or prompting an operation suggestion. When the gas condition judgment result is yes, corresponding adjustment is carried out; and if the gas condition judgment result is negative, not performing corresponding adjustment. Avoiding unnecessary operations.
The air curtain angle adjustable air curtain range hood in this embodiment carries out the gas situation judgement when fan state judgement result is yes, has fully considered the influence that the fan device led to the fact the culinary art environment, just adjusts the air curtain angle of air curtain device when influencing the actual emergence.
Further, in the air curtain angle-adjustable air curtain range hood in the embodiment, the gas condition judgment includes oil smoke condition judgment and/or moisture condition judgment and/or smoke condition judgment. And only when the result of the oil smoke condition judgment and/or the smoke condition judgment is yes, carrying out corresponding adjustment. The air curtain angle-adjustable air curtain range hood introduced by the embodiment distinguishes and treats the gas components in the working area, and the result of gas condition judgment is determined to be yes only when the concentration of oil smoke or smoke reaches a certain value. The water vapor is excluded because it has less influence on the user.
EXAMPLE five
The difference between the air curtain angle adjustable air curtain range hood introduced in this embodiment and the above embodiments is: and the moisture threshold value judged by the moisture condition is larger than the oil smoke threshold value judged by the oil smoke condition and/or the oil smoke threshold value judged by the smoke condition. When the moisture condition is judged to be yes, corresponding adjustment is also carried out. If the threshold value for the moisture state determination is set to a large value, the result of the gas state determination is determined to be yes only when the water vapor is serious. In some cases, too high a water vapor content may also have an effect on the user.
EXAMPLE six
The difference between the air curtain angle adjustable air curtain range hood introduced in this embodiment and the above embodiments is: and when the gas condition judgment result is yes, verifying the judgment result. The verification method comprises the following steps: and after the preset time interval, the gas condition judgment is executed again, and if the judgment results of the adjacent N times are yes, the corresponding adjustment is carried out. Preferably, N.gtoreq.2. The fluctuation of the gas state in the working area can be filtered, and the probability of misjudgment is reduced.
Further, in the air curtain angle-adjustable air curtain range hood in the embodiment, the fan state judgment is performed when the working state of the fan device changes relative to the last moment. The time may be a certain time period, for example, a time period with a duration of 2s to 10 s. The length of the time period can be a preset numerical value in the range hood, a value set by a user, or a value set/switched/changed by the equipment according to the actual use environment, the use duration and the user requirement.
Further, in the air curtain angle adjustable air curtain range hood in the embodiment, when the working state of the fan device changes, the angle adjusting device verifies whether the change is effective; and only aiming at effective change, implementing the fan state judgment. The verification method comprises the following steps: and recording the duration of the change, and if the duration reaches a corresponding duration threshold, determining that the change is effective, preferably, the duration threshold is more than or equal to 5 s. The technical scheme in the embodiment can remove fluctuation and errors caused when a user debugs the cooker or inspects the cooker. And the starting time of the fan state judgment is limited, the fan state judgment is only started when the user adjusts the stove, and the judgment is not performed at other times.
EXAMPLE seven
The difference between the air curtain angle adjustable air curtain range hood introduced in this embodiment and the above embodiments is: the gas condition includes the composition and/or content of the gas. The gas condition acquisition device can detect the component content in the gas, when the target component content in the gas is lower, the oil smoke condition of the working area is not reached to a corresponding threshold value, and when the target component content in the gas is higher, the oil smoke condition of the working area is reached to the corresponding threshold value. So that the equipment can be adjusted to the gas environment of the working area to the oil fume component rather than other gas components.
Further, the work area in this embodiment includes: the lower part of the range hood.
Further, the operating condition of the fan apparatus in this embodiment includes: wind power gear and fan rotating speed. The air curtain angle of the air curtain device comprises: the primary angle of the air curtain airflow relative to the vertical direction and/or the secondary angle of the angular coverage range of the air curtain airflow at the air outlet of the air curtain device, which is perpendicular to the movement direction of the air curtain airflow, are/is set; preferably, the order of adjustment for the primary angles precedes the order of adjustment for the secondary angles. The working state of the fan device is directly obtained by a control system of the range hood. The mode of acquiring the working state is more direct and simple. For example, the wind power of the fan device is generally controlled by a user directly through a control system of the range hood, and the user transmits corresponding parameters for adjusting the working state of the fan device to the angle adjusting device when controlling the range hood, so that the user can complete simultaneous control of the fan device and the air curtain device by only performing one adjustment.
This embodiment has injectd fan device and air curtain device's air curtain angle respectively for adjust the air curtain angle of air curtain device and can use fan device or fan device to the influence of environment as the basis. The primary angle mainly controls the relative distance between the air curtain airflow and the user, and the secondary angle mainly controls the thickness of the air curtain. The air curtain device comprises at least two secondary angle gears; the angle coverage range of the air curtain airflow of the at least two secondary angle gears, which is perpendicular to the movement direction of the air curtain airflow, is different. Preferably, the two-stage angle gears include a first two-stage angle gear and a second two-stage angle gear, and an angle coverage range of the air curtain airflow of the first two-stage angle gear, which is perpendicular to the movement direction of the air curtain airflow, is larger than the index of the second two-stage angle gear.
Example eight
As shown in fig. 1, in the air curtain temperature adjustable air curtain range hood of the present embodiment, at least a portion of the temperature adjusting portion 7 is disposed outside the air curtain device. The temperature adjusting part is configured, and preferably, at least a part of the temperature adjusting part is disposed outside the air curtain duct. The air curtain air channel is used for providing a flowing space for air flow, and the design of the invention can greatly reduce the obstruction of the temperature adjusting part to the air curtain air flow and ensure the smooth flowing of the air curtain air flow.
Further, in the air curtain temperature adjustable air curtain range hood in this embodiment, the temperature adjusting portion 7 is circumferentially disposed outside/inside the air curtain device. The air curtain can be heated from a plurality of directions, and the heating uniformity is ensured. The temperature adjustment part includes a heating coil. The temperature adjustment unit described in this embodiment is mainly constituted by a heating coil, and the structure of the heating coil is easily adjusted, thereby increasing the applicability to the use environment.
Example nine
The difference between the air curtain temperature adjustable air curtain range hood described in this embodiment and the above embodiments is: the air curtain range hood comprises a switch part for controlling the working state of the temperature adjusting part. The switch component can be a component connected with a control system of the range hood, and the switch state of the switch component can be automatically adjusted and switched by the range hood according to the working environment state and the duration time of the working state, and can also be appointed by a user. Preferably, the user-specified level is higher than the level of automatic control of the system.
Further, the air curtain range hood described in this embodiment includes an air curtain temperature obtaining device for obtaining the air flow temperature at the air inlet/air outlet thereof. The air curtain temperature acquisition device is connected with the switch piece and controls the on-off operation of the switch piece. The temperature of the air curtain airflow is controlled by controlling the switch of the temperature adjusting part.
Example ten
The difference between the air curtain temperature adjustable air curtain range hood described in this embodiment and the above embodiments is: the air curtain range hood comprises a temperature control part for adjusting the heating temperature of the temperature adjusting part. The air curtain range hood controls the working state of the temperature adjusting part according to the air flow temperature at the air inlet/air outlet of the air curtain range hood. The air curtain range hood comprises an air curtain temperature acquisition device for acquiring the air flow temperature at the air inlet/air outlet of the air curtain range hood, and the air curtain temperature acquisition device is connected with the temperature control part and controls the temperature control operation of the temperature control part. The air curtain temperature obtaining device in this embodiment is configured to be connected to the temperature control element, and the temperature of the air curtain airflow is adjusted by the temperature control element when the temperature of the air curtain airflow does not meet the target value.
EXAMPLE eleven
As shown in fig. 1, the difference between the air curtain temperature adjustable air curtain range hood of the present embodiment and the above embodiments is: at least part of the power of the air flow required by the air curtain device for forming the air curtain is provided by the fan device, the air curtain device is arranged in a cavity formed by the shell 1 of the air curtain range hood, and the air curtain device is of a structure with a through cavity inside. Through the air curtain range hood introduced by the embodiment, the air flow source of the air curtain device is improved, so that at least one part of the gas discharged by the range hood is guided into the air curtain device to become the air flow source of the air curtain. The gas entering the air curtain device has kinetic energy instead of relying on the kinetic energy provided by the air curtain device, so that the energy required for forming air curtain airflow is obviously reduced, and the energy conservation and environmental protection are facilitated. Further, the air curtain range hood that this embodiment introduced sets up the air curtain device in range hood's inside, can hide the air curtain device effectively, avoids causing the influence to range hood's outward appearance. In addition, the design can shorten the distance between the air curtain device and the fan device, ensure that the airflow power generated by the fan device can efficiently send the airflow into the air curtain device and is discharged from the air outlet of the air curtain device, and realize the function of the air curtain before the flowing performance of the airflow is obviously reduced.
Further, in the air curtain range hood introduced in this embodiment, the air inlet 21 of the air curtain device is communicated with the air duct 32 of the fan device, and the air inlet 21 of the air curtain device is arranged facing the airflow direction in the air duct 32 of the fan device; preferably, the angle between the direction of the air inlet 21 of the air curtain device and the air flow direction in the air duct 32 of the fan device is 90-180 °. Through the air curtain range hood that this embodiment introduced, the orientation to the air intake of air curtain device has been designed for fan device combustion gas can push the air curtain device more in the efficient, avoids blocking that air curtain device self structure led to the fact the air current and makes the air current lose the flow property.
Example twelve
As shown in fig. 1, the difference between the air curtain range hood of the present embodiment and the above embodiments is: the air inlet 21 of the air curtain device is connected with the position adjacent to the air outlet 33 of the fan device. Because the position air current kinetic energy of fan unit air outlet 33 is the biggest, the air current performance of this position is also the most stable to, under the inside purifier that is provided with of range hood, the air current of this position is the gas that has been fully purified, and the oil smoke that contains in it is very limited, more is fit for as wind curtain air current.
Further, the air curtain device described in the present embodiment includes an air inlet portion 24 and a guide portion 26 communicating with each other, and the air inlet portion 24 is connected to the fan device so that the air flow in the fan device is guided into the air curtain device. At least a portion of the air inlet portion 24 is disposed within the air duct 32 of the fan device. Preferably, the air intake 24 and/or the guide 26 are primarily ducted structures.
Further, in the curtain range hood described in this embodiment, the air inlet portion 24 and the guide portion 26 are connected by the transition portion 25, the axis of the air inlet portion 24 and/or the axis of the guide portion 26 mainly extend along a straight direction, and the transition portion 25 has a certain bending angle, so as to change the airflow direction in the air curtain device. Preferably, the included angle between the extending direction of the guiding portion 26 along the inner airflow direction thereof and the air outlet direction of the air curtain device is 90-180 °. Preferably, the transition 25 is tubular; the air inlet portion 24, the transition portion 25 and the guide portion 26 are integrally formed.
The air curtain range hood introduced by the embodiment designs the structure of the air curtain device, and the structural design of the multiple sections ensures that each section can be matched with other sections while playing the functions. The main functions of the air inlet part are as follows: partial air flow in the fan device is effectively separated, the extending direction of the partial air flow is arranged along the air flow direction in the fan device, the separated air flow can enter the air curtain device under the condition of not changing the flowing direction, and the resistance of the air flow entering the air curtain device is greatly reduced. The design of the guide part and the transition part can effectively change the airflow flowing direction, and the guide part is preferably a tubular structure extending in a straight line direction, so that the airflow resistance in the guide part can be reduced.
EXAMPLE thirteen
As shown in fig. 1, the difference between the air curtain range hood of the present embodiment and the above embodiments is: the air curtain device comprises an air storage part 27 for adjusting the distribution of air inside the air curtain device, an air outlet 23 of the air curtain device is arranged on the air storage part 27, and the air storage part 27 forms a part of an air channel of the air curtain device.
Further, in the curtain type range hood described in this embodiment, the cavity inside the air storage portion 27 is annular, and the annular cavity of the air storage portion 27 is disposed around the air suction opening (the lower middle portion of the structure shown in fig. 1) of the air curtain type range hood.
Through the air curtain range hood introduced by the embodiment, the design of the air storage part is added, so that the airflow led out from the fan device is led into the air storage part, and the airflow direction is redistributed, so that the airflow is discharged from the air curtain device from a proper position. The air storage part is of an annular structural design, the air suction opening of the range hood is arranged at an annular central position, the air outlets of the air curtain device can be arranged at a plurality of positions around the air suction opening, the flexible arrangement of the air outlet position of the air curtain device is facilitated, and even if the position is narrow and small and the structure is complex, the air outlet of the air curtain device can be arranged.
Further, in the curtain range hood described in this embodiment, the cavity inside the air storage portion 27 includes a smoke collection cavity cover plate 4 enclosing a smoke collection cavity, a shell member 11 connected to the smoke collection cavity cover plate 4 at the periphery of the smoke collection cavity cover plate 4, and a sealing member 5 arranged opposite to the smoke collection cavity cover plate 4 and connected to the shell member 11. The number of housing members 11 and/or smoke collection chamber cover plates 4 and/or closures 5 is at least one. Preferably, the guide 26 communicates with the cavity inside the reservoir 27 through the closure 5/smoke collection chamber cover plate 4/housing member 11. The air storage part 27 is designed to be formed by the equipment smoke collection cavity cover plate 4 and a part of the shell at intervals, so that the space of the equipment is effectively utilized, more functions are given to equipment parts, and the arrangement of an air curtain device is prevented from increasing the structural burden of the equipment.
Further, in the curtain range hood described in this embodiment, the air outlet direction of the air outlet 23 of the air curtain device is adjustable. The air outlet 23 of the air curtain device is provided with an air deflector (not shown in the figure), and the extension direction of the air deflector is adjustable. Preferably, the number of the air outlets 23 of the air curtain devices is multiple, and the air outlets 23 of the multiple air curtain devices are arranged around the smoke collecting cavity of the air curtain range hood.
Example fourteen
As shown in fig. 1, the difference between the air curtain range hood of the present embodiment and the above embodiments is: the air curtain device comprises an impurity removal unit 6 for purifying the air in the air channel inside the air curtain device. Preferably, the trash removal unit 6 is connected to the guide portion 26. The design of the impurity removal unit is added, so that the cleanliness of air curtain airflow can be further ensured.
Further, in the curtain type range hood described in this embodiment, the impurity removing unit 6 is connected to a side of the guide portion 26 close to the air storage portion 27. The air inlet that keeps away from the air curtain device of edulcoration unit certain degree is made, and the setting of avoiding the edulcoration unit causes the hindrance to the air current entering air curtain device.
Further, the curtain range hood that this embodiment introduced, its edulcoration unit includes the edulcoration unit switch (not shown in the figure) that is used for controlling edulcoration unit operating condition, and edulcoration unit switch control edulcoration unit is whether insert in the wind channel of air curtain device. When the switch of the impurity removal unit is triggered to be in an opening state, the impurity removal unit is connected into the air duct of the air curtain device, and the impurity removal function is achieved. When the switch of the impurity removal unit is triggered to be in a closed state, the impurity removal unit is connected out of the air duct of the air curtain device. The impurity removal unit is connected with the air outlet duct, so that the airflow resistance in the air curtain device can be reduced, and the airflow fluidity of the air curtain device is increased.
Further, in the curtain range hood described in this embodiment, the switch of the impurity removal unit controls the degree of the impurity removal unit accessing the air duct of the air curtain device. The edulcoration unit in this embodiment includes multilayer structure, and each layer all can realize certain edulcoration function. Preferably, the structure of the multilayer impurity removing units is the same, and the number of layers of the impurity removing units connected into the air curtain device air channel can be controlled by the switch of the impurity removing units. When the multi-layer impurity removal unit is connected into the air channel, the impurity removal function is achieved together, and the impurity removal effect is guaranteed. When the number of layers of the impurity removal unit connected into the air channel is small, the minimum flowing loss of the air flow can be ensured. Wherein the impurity removing unit can be a device with a filtering function.
Further, in the curtain range hood described in this embodiment, the impurity removing unit may be a deflectable sheet structure disposed in the air duct of the air curtain device. When the impurity removal function is realized, the lamellar structure is turned to form a certain angle (preferably vertical) with the airflow direction; when the impurity removal function is not required, the lamellar structure is turned to be parallel to the airflow direction.
Example fifteen
The difference between the air curtain range hood of the embodiment and the above embodiments is as follows: the air curtain device comprises a switch part for controlling the on-off of an air channel inside the air curtain device. The switch part for controlling the on-off of the air duct is added, so that a user can select the presence or absence of the air curtain.
Further, the curtain range hood introduced in this embodiment has the switch portion disposed on the guide portion. Preferably, the switching part performs on/off control by a pressure difference between both ends thereof. The switch part of the air curtain device is designed as a pressure control switch, and when the air pressure in the fan device reaches a certain degree, the equipment automatically opens the air curtain device. The air pressure in the fan device is improved, so that the suction force of the range hood is increased, the fan is adjusted to a higher gear, the oil smoke overflow risk is increased, the air curtain is matched at the moment, and the air curtain device is automatically opened. When the wind pressure in the fan device is reduced to a certain value, the switch part is closed.
Further, in the curtain range hood described in this embodiment, at least a part of the switch portion of the air curtain device is disposed outside the air curtain range hood, and a user can perform a trigger operation on the switch portion to implement an air curtain function of closing/opening the air curtain device.
Further, the air curtain range hood in the embodiment includes a position obtaining unit for obtaining the position of the user. The gas condition acquisition device comprises an atmosphere acquisition switch unit for controlling whether the gas condition acquisition device is turned on or not.
Further, in the air curtain range hood in this embodiment, the position acquisition unit is connected to the atmosphere acquisition switch unit and controls the operating state of the gas condition acquisition device. When the position obtaining unit obtains that the first distance between the user and the air curtain range hood reaches/does not reach the corresponding threshold value, the atmosphere obtaining switch unit controls the air curtain device and/or the impurity removing unit and/or the gas condition obtaining device to be turned on/off and/or prompts an obtaining result and/or prompts an operation suggestion.
Further, in the air curtain range hood in this embodiment, when the position acquisition unit acquires that the first distance from the user to the air curtain range hood reaches or does not reach the corresponding threshold value, the impurity removal unit is controlled to improve the impurity removal capability, reduce the impurity removal capability, and/or prompt an acquisition result and/or prompt an operation suggestion. Preferably, the first distance is a distance between an air curtain air outlet of the air curtain range hood and a user.
The air curtain range hood introduced by the embodiment is additionally provided with the position acquisition unit. Preferably, the position acquisition unit is connected with the air curtain device, and when the state of the human body acquired by the position acquisition unit reaches a threshold value, the air curtain device is controlled to be opened. Or, the switch unit is connected with the position acquisition unit, and when the state of the human body acquired by the position acquisition unit reaches a threshold value, the gas condition acquisition device is controlled to be started. This control is beneficial to reducing the burden of the system.
In addition, in the air curtain range hood introduced in this embodiment, the position obtaining unit is not only used for bringing the position of the user into one of the conditions for controlling the opening of the air curtain, but also used for limiting the specific action mode of the air curtain range hood. On the one hand, the air curtain can be judged whether to be meaningful to the user through the air outlet of the air curtain or the distance between the equipment and the user. If the user is near the apparatus, the user may be affected by the oil smoke or the water vapor. Alternatively, when the user is located in the vicinity of the apparatus, the user is likely to be affected by the oil smoke or the water vapor.
Example sixteen
The difference between the air curtain range hood of the embodiment and the above embodiments is as follows: the position acquisition unit controls the working state of the impurity removal unit and/or prompts the acquisition result and/or prompts an operation suggestion according to the first distance and the result acquired by the gas condition acquisition device.
Further, in the air curtain range hood in this embodiment, the position obtaining unit obtains the first distance and a result obtained by the gas condition obtaining device, determines whether the gas condition of the air curtain airflow affects a user, and if the determination result is yes, adjusts a working state of the impurity removing unit and/or prompts an obtaining result and/or prompts an operation suggestion.
Example seventeen
The difference between the air curtain range hood of the embodiment and the above embodiments is as follows: the method comprises the following steps: an air curtain device for forming an air curtain, a gas condition acquisition device for acquiring the composition/content of the gas component. The atmosphere acquisition device comprises a first gas condition acquisition device for acquiring the gas composition/content of the working area of the air curtain range hood and a second gas condition acquisition device for acquiring the gas composition/content of the non-working area of the air curtain range hood. The working area comprises at least one part of the air suction range of the air suction inlet of the air curtain range hood, and the non-working area comprises at least one part of the upper side and/or the front side and/or the left side and/or the right side and/or the lower side of the air curtain range hood and the parts above.
The air curtain range hood introduced by the embodiment defines a working area and a non-working area. The environment around the range hood is divided into at least two parts. The vicinity of the air suction opening is used as a working area, the position is within the range of the suction force of the range hood, the gas at the position is sucked into the range hood to a greater extent, and the gas at the position can indicate the target gas composition of the range hood.
Further, the air curtain range hood described in this embodiment includes a fan device that generates an air flow. And the control device is connected with the air curtain device and/or the gas condition acquisition device, and adjusts the working state of the air curtain device and/or prompts a judgment result and/or prompts an operation suggestion according to the data acquired by the gas condition acquisition device. And the control device controls the working state of the gas condition acquisition device and/or the air curtain device according to the working state of the fan device. Preferably, the operating state of the air curtain device includes an on and/or off state. And when the fan device is in an off state, the control device closes the gas condition acquisition device and/or the air curtain device.
EXAMPLE eighteen
The difference between the air curtain range hood of the embodiment and the above embodiments is as follows: the adjustment basis of the control device is data generated by the air curtain device and/or the gas condition acquisition device at the same time. Preferably, the data is real-time data and the adjustment is a real-time adjustment.
Or the adjustment of the control device is based on data generated by the air curtain device and/or the gas condition acquisition device in the same time period. Preferably, the data is a calculated value within a prescribed time, and the adjustment is an intermittent adjustment. Further preferably, the prescribed time includes a time automatically acquired by the device and/or a time set by the user.
With the air curtain range hood described in this embodiment, the data obtained by the gas condition obtaining device can be obtained in real time, and the control basis of the control device can be real-time data or calculation data within a certain time period, such as average value calculation. The design enriches the control mode of the equipment, and the specific implementation mode can be automatically set by the system or selected by a user.
Further, in the curtain extractor hood described in this embodiment, the first gas condition obtaining device generates first data according to the working area gas, and the control device adjusts the working state of the air curtain device and/or prompts an obtaining result and/or prompts an operation suggestion according to the first data. Preferably, when the first data reaches or does not reach the corresponding threshold value, the air curtain device is controlled to be opened/closed and/or the acquisition result is prompted and/or the operation suggestion is prompted.
Through the air curtain range hood introduced in this embodiment, when the first data is used alone as the basis for investigation, if the first data reaches the corresponding threshold (corresponding to the situation where the oil smoke is severe), the air curtain is selected to be opened no matter what the second data is. At this time, considering that the oil smoke is serious, if the oil smoke is not opened, the risk of oil smoke leakage to a non-working area is increased, and the use environment of a user is influenced. When the range hood works to a certain moment, the relation between the first data and the second data meets the condition of closing the air curtain, for example, when the oil smoke content reflected by the second data is greater than the oil smoke content reflected by the first data, the control device closes the air curtain or advises a user to close the air curtain, so that the oil smoke in a non-working area is sucked into the range hood, and the overall environment improvement is realized.
Example nineteen
The difference between the air curtain range hood of the embodiment and the above embodiments is as follows: the first gas condition acquisition device generates first data according to the gas in the working area, and the second gas condition acquisition device generates second data according to the gas in the non-working area; and the control device judges according to the first data, the second data and the corresponding threshold value, and adjusts the working state of the air curtain device and/or prompts the judgment result and/or prompts the operation suggestion according to the judgment result. Preferably, if the comparison result between the first data and the second data exceeds the corresponding threshold, the air curtain device is adjusted to be opened and/or the result of judgment is prompted and/or the suggestion of opening the air curtain device is prompted.
Further, if the comparison result between the first data and the second data does not exceed the corresponding threshold value, the air curtain device is adjusted to be closed and/or the judgment result is prompted and/or the suggestion that the air curtain device is closed is prompted. At least one part of the second gas condition acquisition device is arranged on one side of the air curtain range hood facing the user.
Through the air curtain range hood introduced by the embodiment, the first data and the second data are compared, if the difference between the first data and the second data is not large, the fact that oil smoke exists in a non-working area is also indicated, and the effect of generating the air curtain to protect a user is small at the moment. At the moment, the air curtain is closed or the user is advised to close the air curtain so as to suck away the oil smoke in the non-working area. Furthermore, the non-working area is defined as the area where the user is located and the front of the range hood and the cooking bench, so that the environment where the user is located can be fully brought into the investigation range.
Example twenty
The difference between the air curtain range hood of the embodiment and the above embodiments is as follows: the device comprises an impurity removing device arranged in an impurity removing unit in the air curtain device, and an impurity removing capability judging device for judging the impurity removing capability of the impurity removing device according to data obtained by the gas condition obtaining device. When the edulcoration device performance was not enough for the edulcoration ability, probably there was the edulcoration device to need change abluent condition, perhaps, was the heavier condition of near cooking utensils oil smoke this moment, and the fan device of adjustment equipment increases the ability of induced drafting this moment. The invention further introduces an impurity removal device/impurity removal unit with adjustable impurity removal capability, and the combination of the impurity removal device/impurity removal unit introduced by the invention enables the air curtain range hood to control the impurity removal capability of the impurity removal device/impurity removal unit according to the result obtained by the gas condition obtaining device, so that the impurity removal effect under different use conditions is ensured.
Further, the gas condition obtaining device in this embodiment includes a working area gas condition obtaining device for obtaining the composition/content of the gas component in the working area of the air curtain range hood and an air duct gas condition obtaining device for obtaining the composition/content of the gas component in the air duct of the air curtain range hood. The air duct comprises an air curtain air duct of an air curtain device. The gas condition acquisition device is designed to at least comprise a working area gas condition acquisition device and an air channel gas condition acquisition device, so that the target gas composition condition in the working area and the gas composition condition in the air channel are comprehensively considered, and the cleaning effect of the impurity removal device on the target substance can be effectively shown. At this time, the air duct gas condition acquisition device is preferably arranged on one side of the impurity removal device communicated with the air duct outlet.
Further, the duct gas condition obtaining device in this embodiment includes an air curtain duct gas condition obtaining device for obtaining the composition/content of the gas component in the air curtain duct. The air duct gas condition acquisition device comprises a first air duct gas condition acquisition device for acquiring the side, moving towards the impurity removal unit, of the air flow in the air curtain air duct. And the impurity removal capability judging device compares the data acquired by the first air duct gas condition acquiring device with the data acquired by the working area gas condition acquiring device, and when the comparison result of the two data does not exceed a threshold value, the impurity removal capability of the impurity removal device is good. According to the air curtain range hood introduced by the embodiment, the first air channel gas condition acquisition device is additionally arranged in the air channel of the air curtain device and used for inspecting the air flow quality of the air curtain, and the inspected result can be that the air flow quality of the air curtain is good and the air curtain can be normally used; or the quality of the air curtain airflow is poor, and the impurity removal capability of the corresponding impurity removal device and/or the impurity removal unit is adjusted according to the first air channel gas condition acquisition device, or the user is prompted about the condition of poor quality. Further, when the impurity removal capability of the impurity removal device and/or the impurity removal unit is adjusted to the limit set by the system, the current situation of the user is prompted, and the user is reminded to check.
The difference between the air curtain range hood described in this embodiment and the above embodiments is: the air duct gas condition acquisition device comprises an air curtain air duct gas condition acquisition device for acquiring the composition/content of gas components in the air curtain air duct; the air duct gas condition acquisition device comprises a second air duct gas condition acquisition device for acquiring one side of the air curtain air duct, which deviates from the movement of the impurity removal unit, of the air flow.
Further, the impurity removal capability determining device in this embodiment compares the data acquired by the second air duct gas condition acquiring device with the data acquired by the working area gas condition acquiring device, and when a comparison result between the two does not exceed a threshold value, the impurity removal capability of the impurity removal device and/or the impurity removal unit is good.
The second air flue gas condition acquisition device is additionally arranged in the air flue of the air curtain device, and the data acquired by the second air flue gas condition acquisition device is compared with the data acquired by the working area gas condition acquisition device, so that the further investigation on the impurity removal capability of the impurity removal device and/or the impurity removal unit can be realized. The investigation result is more intuitive.
The air duct gas condition acquisition device comprises an air curtain air duct gas condition acquisition device for acquiring the composition/content of gas components in the air curtain air duct; the air duct gas condition acquisition device comprises a first air duct gas condition acquisition device for acquiring one side of the air curtain air duct, which moves towards the impurity removal unit, of the air flow; the air duct gas condition acquisition device comprises a second air duct gas condition acquisition device for acquiring one side of the air curtain air duct, which deviates from the movement of the impurity removal unit, of the air flow.
Further, the impurity removal capability determining device in this embodiment compares the data acquired by the first air duct gas condition acquiring device with the data acquired by the second air duct gas condition acquiring device, and when a comparison result between the two does not exceed a threshold value, the impurity removal capability of the impurity removal unit is good. And comparing the data between the first air channel gas condition acquisition device and the second air channel gas condition acquisition device, so that the impurity removal capability of the impurity removal unit can be independently inspected.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (8)

1. The utility model provides an air curtain range hood with adjustable air curtain angle which characterized in that includes:
an air curtain device for forming an air curtain; the air curtain angle of the air curtain device comprises: the primary angle of the air curtain airflow relative to the vertical direction and/or the secondary angle of the coverage range of the air curtain airflow at the air outlet of the air curtain device in the direction perpendicular to the movement direction of the air curtain airflow are/is set;
the fan device is used for providing power for the range hood to absorb the oil smoke;
the angle adjusting device is connected with the air curtain device and judges whether the air curtain angle of the air curtain device is adjusted according to the working state of the fan device and the current air curtain angle of the air curtain device;
if so, judging whether the air curtain angle of the air curtain device is adjusted according to the data of the air condition of the working area and the current air curtain angle of the air curtain device; adjusting the air curtain angle of the air curtain device according to the result of the gas condition judgment and/or prompting the judgment result and/or prompting an operation suggestion;
if the fan state judgment result is negative, no corresponding adjustment is carried out;
when the working state change of the fan device is adjusted in a mode of increasing/reducing the suction force, the angle of the air curtain is adjusted in a mode of being away from/close to the suction opening of the range hood.
2. The air curtain angle adjustable air curtain range hood according to claim 1, wherein the data of the working area gas condition comprises a concentration of a target gas;
the data of the gas condition of the working area are divided into a plurality of data according to different target gases;
the data of the gas condition of the working area comprises oil smoke condition data and/or moisture condition data and/or smoke condition data;
the data of the gas condition of the working area are obtained by a gas condition obtaining device, and the gas condition obtaining device comprises an oil smoke obtaining module for obtaining the oil smoke condition data and/or a moisture obtaining module for obtaining the moisture condition data and/or a smoke obtaining module for obtaining the smoke condition data.
3. The air curtain angle adjustable air curtain range hood according to claim 1 or 2, wherein if the result of the gas condition judgment is yes, the corresponding adjustment is performed;
if the result of the gas condition judgment is negative, the corresponding adjustment is not carried out, and after waiting for the preset time, the gas condition judgment is executed again.
4. The air curtain angle adjustable air curtain range hood according to claim 3, wherein the gas condition judgment is performed separately for different target gases;
the gas condition judgment comprises oil smoke condition judgment and/or moisture condition judgment and/or smoke condition judgment;
only when the result of the oil smoke condition judgment and/or the smoke condition judgment is yes, corresponding adjustment is carried out;
and the moisture threshold value judged by the moisture condition is larger than the oil smoke threshold value judged by the oil smoke condition and/or the oil smoke threshold value judged by the smoke condition.
5. The air curtain angle adjustable air curtain range hood according to claim 3, wherein when the result of the gas condition judgment is yes, the result of the judgment is verified;
the verification method comprises the following steps: performing gas condition judgment again after a preset time interval, and if the judgment results of the adjacent N times are yes, performing corresponding adjustment;
N≥2。
6. the air curtain angle adjustable air curtain range hood according to claim 1, wherein the fan state judgment is performed when the working state of the fan device changes relative to the previous moment.
7. The air curtain angle adjustable air curtain range hood according to claim 6, wherein when the working state of the fan device changes, the angle adjusting device verifies whether the change is an effective change; implementing the fan state determination only for valid changes;
the verification method comprises the following steps: recording the duration time of the change, and if the time reaches a corresponding duration time threshold value, determining that the change is effective;
the duration threshold value is more than or equal to 5 s.
8. The air curtain angle adjustable air curtain range hood according to claim 1, wherein the gas condition comprises a composition and/or content of gas;
the work area includes: the range of suction of the range hood;
the operating condition of fan device includes: wind power gear and fan rotating speed;
the adjustment order for the primary angles precedes the adjustment order for the secondary angles.
CN201810660502.5A 2018-06-25 2018-06-25 Air curtain angle adjustable air curtain fume exhaust fan Active CN110631074B (en)

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Publication number Priority date Publication date Assignee Title
KR100664067B1 (en) * 2005-08-22 2007-01-03 엘지전자 주식회사 Exhaust hood
CN204043015U (en) * 2014-08-29 2014-12-24 罗立强 Fume isolator and there is its smoke pumping equipment
CN105757746A (en) * 2016-03-04 2016-07-13 珠海格力电器股份有限公司 Control method and device for range hood
CN106765415A (en) * 2017-01-25 2017-05-31 天津大学 Based on PM2.5 concentration and clearance control air quantity and the energy-conservation air-curtain type lampblack absorber closed
CN206817560U (en) * 2017-01-25 2017-12-29 天津大学 The energy-conservation air-curtain type lampblack absorber controlled based on PM2.5 concentration and clearance

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Publication number Priority date Publication date Assignee Title
CN1316623A (en) * 2001-04-22 2001-10-10 黎凡 Jet air curtain type device and method for exhausting waste gas

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100664067B1 (en) * 2005-08-22 2007-01-03 엘지전자 주식회사 Exhaust hood
CN204043015U (en) * 2014-08-29 2014-12-24 罗立强 Fume isolator and there is its smoke pumping equipment
CN105757746A (en) * 2016-03-04 2016-07-13 珠海格力电器股份有限公司 Control method and device for range hood
CN106765415A (en) * 2017-01-25 2017-05-31 天津大学 Based on PM2.5 concentration and clearance control air quantity and the energy-conservation air-curtain type lampblack absorber closed
CN206817560U (en) * 2017-01-25 2017-12-29 天津大学 The energy-conservation air-curtain type lampblack absorber controlled based on PM2.5 concentration and clearance

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