CN110631069A

CN110631069A - Air curtain kitchen range

Info

Publication number: CN110631069A
Application number: CN201810658555.3A
Authority: CN
Inventors: 陈雄; 周振
Original assignee: Qingdao Haier Intelligent Cooking Appliances Co Ltd
Current assignee: Laiyang Haier Intelligent Kitchen Appliance Co ltd
Priority date: 2018-06-25
Filing date: 2018-06-25
Publication date: 2019-12-31
Anticipated expiration: 2038-06-25
Also published as: CN110631069B

Abstract

The invention discloses an air curtain cooker which comprises an air curtain device for generating an air curtain, wherein an air outlet of the air curtain device comprises at least two air outlet units which can independently realize the adjustment/control of the working state, and the relative positions of different air outlet units and a heating device of the air curtain cooker are different. The air curtain cooker judges whether the working state of the air curtain device needs to be adjusted or not according to the environmental condition of the surrounding environment. In addition, the air outlet of the air curtain cooker is of a multi-section structure which can be controlled respectively, so that a corresponding air curtain can be selectively generated at the part needing the air curtain.

Description

Air curtain kitchen range

Technical Field

The invention belongs to the field of cookers, and particularly relates to an air curtain cooker.

Background

With the increase of the existing urbanization level, the requirements of users on the living environment are higher and higher, and the cooking environment is changed from an outdoor kitchen which is well ventilated before to an indoor kitchen which is well closed. The indoor kitchen is comfortable and sanitary, the life quality of a user is improved, but the problems of poor ventilation effect and the like are faced, oil smoke is easy to diffuse in the kitchen with limited space and further enters a bedroom and a living room, and the air quality in the living range of the user is influenced. In order to discharge the oil smoke to the outside of the living space of the user as much as possible, most indoor kitchens are provided with the range hoods, so that the condition that the oil smoke is diffused to the living environment of the user in the cooking process is controlled. Meanwhile, in order to enhance the smoke absorption performance of the range hood, relevant scientific researchers and range hood developers make great efforts in the aspect of increasing the air volume of the range hood, so that the smoke absorption performance of the range hood is improved to a great extent. However, when cooking, part of the oil smoke will be diffused into the kitchen, which pollutes the indoor environment and affects the health of the cookers. In the prior art, some kitchen range manufacturers also add an air curtain device on the kitchen range when designing partial products, but the kitchen range is different from a range hood, and a user can place various articles such as bowls and plates on a kitchen range in the using process; in addition, oil stains and food residues are difficult to avoid falling on the cooking bench in the cooking process. When the dirty objects generated in the cooking process are cleaned, parts of the dirty objects are inevitably pushed into the air curtain device, the air outlet of the air curtain device is blocked, and the air curtain device is damaged by serious people. Furthermore, the air outlet of the air curtain device arranged on the kitchen range is close to the user, so that the influence on the user is obvious, and the air curtain arranged at the kitchen range not only isolates the oil smoke from the user, but also has the task of bringing the oil smoke into the range hood, so that the problem of urgent need to be solved by how to design the structure and the use method of 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 provide an air curtain cooker which judges whether the working state of an air curtain device needs to be adjusted or not according to the environmental condition of the surrounding environment. In addition, the air outlet of the air curtain cooker is of a multi-section structure which can be controlled respectively, so that a corresponding air curtain can be selectively generated at the part needing the air curtain.

In order to solve the technical problems, the invention adopts the technical scheme that:

the utility model provides an air curtain cooking utensils, is including the air curtain device that generates the air curtain, the air outlet of air curtain device is set up to including two at least air outlet units that can independently realize operating condition adjustment/control, different air outlet units with the heating device's of air curtain cooking utensils relative position is different.

The invention is further configured to: at least two adjacent air outlet units are continuously arranged, so that at least part of the air outlet is of a continuous strip-shaped hole structure;

preferably, the extending direction of the air outlet is parallel to the horizontal direction.

The invention is further configured to: the air curtain kitchen range controls the working state of the air outlet unit according to the surrounding environment state of the air curtain kitchen range;

preferably, the air curtain cooker respectively controls at least two air outlet units according to the surrounding environment state;

preferably, the air curtain cooker comprises a state acquisition device, which is used for acquiring the environmental state around the air curtain cooker and generating corresponding environmental state data;

preferably, the state acquisition device is connected with the air curtain device through a control system of the air curtain cooker, and the control system controls the working state of the air curtain device according to the environmental state data.

The invention is further configured to: the operating condition of the tuyere unit includes: on, off, and/or air curtain angle;

preferably, the environmental state includes: ambient temperature and/or ambient humidity and/or ambient oil smoke content;

preferably, the state acquisition device is arranged on at least one edge around the air curtain cooker.

The invention is further configured to: the state acquisition device is arranged corresponding to the air outlet unit;

preferably, the number of the state acquiring devices is at least two, and the at least two state acquiring devices are arranged in one-to-one correspondence with the air outlet units;

preferably, the control system controls the at least two air outlet units respectively according to data generated by different state acquisition devices.

The invention is further configured to: the air curtain kitchen range respectively controls different air outlet units according to the ambient environment states around the different air outlet units;

preferably, when the state acquiring device judges that the data of the environmental state exceeds the corresponding threshold, the working state of the corresponding air outlet unit is correspondingly adjusted;

preferably, the air curtain cooker adjusts the air outlet unit in real time and/or periodically;

preferably, the adjusting frequency of the air curtain cooker to the air outlet units at different positions is different.

The invention is further configured to: the air curtain angle of the air curtain device comprises a primary angle of 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, which is perpendicular to the flow direction of the air curtain airflow;

preferably, the order of adjustment for the primary angles precedes the order of adjustment for the secondary angles;

preferably, after the primary angle is adjusted, the corresponding relationship between the working state of the air curtain device and the environmental state is determined, and if the corresponding relationship is within the corresponding threshold range, the secondary angle is not adjusted.

The invention is further configured to: when judging that the corresponding relation between one of the primary angle and the secondary angle and the environment state exceeds a corresponding threshold value, adjusting the primary angle/the secondary angle of the air curtain device, and/or prompting a judgment result and/or prompting an operation suggestion;

preferably, when the corresponding relation between the primary angle and the secondary angle and the environmental state is judged to exceed the corresponding threshold value, the primary angle/the secondary angle of the air curtain device is adjusted, and/or a judgment result and/or an operation suggestion are/is prompted; and after waiting for a predetermined time, the judgment is performed again.

The invention is further configured to: an air outlet of the air curtain device protrudes out of a cooking bench of the air curtain cooker;

preferably, the air curtain device comprises an air outlet part for controlling the generation position of the air curtain and forming the outline of the air outlet, and the air outlet part is arranged on at least one edge of the air curtain cooker;

preferably, at least part of the air outlet part protrudes out of the cooking bench;

preferably, the air outlet part shields the air outlet at the upper side;

preferably, one surface of the air outlet part facing the heating device forms an air outlet of the air curtain device;

preferably, the air outlet is spaced apart from the cooking top in a vertical direction.

The invention is further configured to: the air curtain cooker comprises a flame protection device for preventing air curtain airflow from influencing combustion of the heating device;

preferably, the flame protection device is disposed around the heating device, and protects the flame by spraying the air flow in a certain direction.

The invention further introduces an air curtain cooker which comprises an air curtain device for generating an air curtain, wherein an air outlet of the air curtain device is arranged towards a heating device of the air curtain cooker in an opening and closing manner.

preferably, the air outlet part shields the air outlet at the upper side;

preferably, the air outlet is embedded into the air outlet part in the direction towards the heating device;

preferably, the air outlet part is of a boss-shaped structure, the section of the air outlet part along the extension direction of the air outlet part is rectangular, and the upper surface of the air outlet part is parallel to the horizontal plane;

preferably, a certain distance is reserved between the air outlet and the cooking bench in the vertical direction, and at least two surfaces of the air outlet part are of a closed structure;

preferably, the included angle range between the orientation of the air outlet and the vertical direction is 30-90 degrees.

The invention is further configured to: at least part of the air outlet is of a continuous strip-shaped hole structure, and the extending direction of the air outlet is parallel to the horizontal direction.

The invention is further configured to: at least part of the top of the air curtain device is flat in structure and forms a cooking bench of the air curtain cooker;

preferably, the air curtain device comprises a fan device for providing power for air flow, and at least part of the fan device is arranged at the lower side of the cooking bench;

preferably, at least part of the fan means is disposed within a cavity within the air curtain means.

The invention is further configured to: the air outlet part comprises a wind direction adjusting piece for adjusting the direction of the air curtain, and at least part of the wind direction adjusting piece is arranged on the inner side of the air outlet part;

preferably, when the wind direction adjusting piece is closed, the air outlet is blocked at the inner side of the air outlet part;

preferably, the wind direction adjusting piece is a baffle structure capable of turning for a certain angle.

The invention is further configured to: adjusting the working state of the air curtain device by taking the working state of the heating device as a basis;

preferably, the air curtain cooker controls the working state of the air curtain device according to the firepower/change situation of the heating device.

The invention is further configured to: the air curtain cooker comprises a liquid containing device embedded in the air curtain device;

preferably, the liquid containing device is arranged around the heating device.

The invention is further configured to: the heating device is a structure embedded into the air curtain device;

preferably, the air curtain cooker comprises a control system for controlling the working state of the air curtain cooker, and the control system is embedded into the air curtain device;

preferably, the control system comprises a fire switch and/or a fire adjustment device.

The invention is further configured to: the air curtain device is internally provided with a cavity allowing gas to flow;

preferably, the cavity is an annular structure/a groove-shaped structure, and the heating device is embedded in the central vacancy of the annular structure/in the groove of the groove-shaped structure.

preferably, the flame protection device is arranged around the heating device and protects the flame by spraying airflow along a certain direction;

preferably, the direction of the air flow sprayed by the flame protection device forms a certain included angle with the vertical direction, the included angle ranges from 0 degree to 60 degrees, and the direction of the sprayed air flow faces the outer side of the heating device;

preferably, the flame protection device is of an annular structure;

preferably, the flame protection device is arranged around the liquid containing device of the air curtain cooker;

preferably, the air duct of the flame protection device is communicated with the air curtain device, and at least part of the jet air flow required by the flame protection device is derived from the air flow generated by the air curtain device;

preferably, the jet air flow direction of the flame protection device is adjustable, and the jet air flow intensity of the flame protection device is smaller than that of the air curtain air flow.

The invention further introduces an air curtain cooker which comprises an air curtain device for generating an air curtain and a heating device for providing energy for cooking, evaluates the corresponding relation between the working state of the heating device and the working state of the air curtain device by taking the working state of the heating device as a basis, and judges whether to adjust the working state of the air curtain device and/or determines the adjustment degree and/or prompts the judgment result and/or prompts an operation suggestion.

The invention is further configured to: when a user adjusts the heating device, a control system of the air curtain cooker adjusts the air curtain device correspondingly;

preferably, the heating device and the air curtain device are connected through the control system;

preferably, the control system comprises a fire switch and/or a fire adjustment device and/or an input device;

preferably, the correspondence between the operating state of the air curtain device and the operating state of the heating device is preset/set by a user/the air curtain cooker is adjusted according to the actual use condition.

The invention is further configured to: the operating states of the heating device include: at least one of an on/off state, a firepower gear, the time for which the heating device is kept at a certain firepower gear, the working stability of the heating device, and the effective value of the rotating angle of the firepower switch and/or the firepower adjusting device;

preferably, the effective value of the rotating angle of the fire power switch and/or the fire power adjusting device is a relative value of the rotating angle of the fire power switch and/or the fire power adjusting device relative to the fire power;

preferably, the operating state of the air curtain device includes: the open, closed state of the air curtain device and/or the angle of the air curtain.

The invention is further configured to: the air curtain cooker judges whether the corresponding relation between the working state of the heating device and the working state of the air curtain device is in a corresponding threshold range, and adjusts the working state of the air curtain device according to the judgment result and/or prompts an operation suggestion;

preferably, the determination is made when the operating state of the heating device changes.

The invention is further configured to: the air curtain cooker judges whether to evaluate the corresponding relation between the working state of the air curtain device and the working state of the heating device according to the duration of the change and the maintenance of the working state of the heating device;

preferably, when the duration reaches a corresponding threshold, performing a corresponding adjustment on the air curtain device;

preferably, when the heating device is in an on state and/or a fire gear reaches a corresponding threshold and the holding time in the state reaches a corresponding threshold, the air curtain device is turned on;

preferably, the time period is not less than 5 s.

The invention is further configured to: the working state of the air curtain device comprises a primary angle of 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, which is perpendicular to the movement direction of the air curtain airflow;

preferably, after the primary angle is adjusted, the correspondence between the operating state of the air curtain device and the operating state of the heating device is evaluated, and if the correspondence is within the corresponding threshold range, the secondary angle is not adjusted.

The invention is further configured to: when the change of the operating state of the energy conversion device tends to increase/decrease the fire power, the operating state of the air curtain device is adjusted to make the air curtain flow away from/close to the energy conversion device.

The invention is further configured to: when the working state change of the energy conversion device tends to increase firepower, the degree of adjusting the working state of the air curtain device is greater than the degree of adjusting the working state of the air curtain device when the working state change of the energy conversion device tends to decrease firepower.

The invention is further configured to: when the working state change of the energy conversion device tends to increase firepower, the adjusting speed of the working state of the air curtain device is larger than that when the working state change of the energy conversion device tends to decrease firepower.

The invention is further configured to: the air outlet of the air curtain device can be opened and closed towards the heating device of the air curtain device cooker, and at least part of the top of the air curtain device is flat in structure and forms a cooking bench of the air curtain cooker.

The invention further introduces an air curtain cooker which comprises an air curtain device for generating an air curtain and a heating device for providing energy for cooking, wherein the working state of the heating device is verified according to the condition of the working area of the air curtain cooker, and the air curtain angle of the air curtain device is adjusted according to the working state of the heating device.

The invention is further configured to: the air curtain cooker judges whether the working area condition of the current stage is effective or not, and verifies the working state of the heating device according to the data of the effective working area condition;

preferably, when the judgment result shows that the working area condition is invalid, the working state of the heating device is verified by using the working area condition data of the previous stage.

The invention is further configured to: when the working area condition is judged to be effective, the stability of the working area condition data is taken as one of the judgment standards;

preferably, when the data fluctuation condition of the working area condition of the current stage is within the corresponding stability threshold range, the working area condition is judged to be valid, otherwise, the working area condition is judged to be invalid.

The invention is further configured to: the fluctuation condition comprises the deviation degree of the data of the working area condition relative to the historical data and/or 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: calculating the duration of the change of the acquired working area condition data, and when the duration reaches a corresponding threshold value, sending the corresponding working area condition data to the checking device;

preferably, the time period is not less than 5 s.

The invention is further configured to: the air curtain cooking utensils include:

the working area condition acquisition device is used for acquiring the condition of the working area of the air curtain cooker and generating corresponding working area condition data;

the checking device is connected with the heating device, acquires the working state data of the heating device, and checks the working state data of the heating 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: controlling the air curtain angle to tend to move away from/close to the heating device when the change of the condition of the working area tends to increase/decrease the gas fluidity in the working environment of the air curtain cooker;

preferably, the conditions of the working area 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 air curtain cooker acquires the condition of the working area in real time/periodically and verifies the working condition of the heating device in real time/periodically, so as to adjust the air curtain angle of the air curtain device in real time/periodically.

The invention is further configured to: the air curtain cooker judges whether the corresponding relation between the air curtain angle and the current air curtain angle of the air curtain device is in a corresponding threshold range according to the checking result and the current air curtain angle of the air curtain device, and adjusts the air curtain angle of the air curtain device and/or the on-off state of the air curtain device and/or prompts the judging result and/or prompts an operation suggestion according to the judging result;

preferably, the working state of the heating device is obtained by a control system of the air curtain cooker;

preferably, the operating state of the heating device comprises: at least one of an on/off state, a firepower gear, the time for which the heating device is kept at a certain firepower gear, the working stability of the heating device, and the effective value of the rotating angle of the firepower switch and/or the firepower adjusting device;

preferably, the work area comprises: and the air curtain cooker is arranged on the upper side of the cooking bench.

preferably, after the primary angle is adjusted, the corresponding relationship between the operating state of the air curtain device and the operating state of the heating device is determined, and if the corresponding relationship between the operating state of the air curtain device and the operating state of the heating device is within the corresponding threshold range, the secondary angle is not adjusted.

The invention is further configured to: when the corresponding relation between one of the primary angle and the secondary angle and the checking result exceeds a corresponding threshold value, adjusting the primary angle/the secondary angle of the air curtain device, and/or prompting the judging result and/or prompting an operation suggestion;

preferably, when the corresponding relationship between the primary angle and the secondary angle and the checking result exceeds a corresponding threshold, adjusting the primary angle/the secondary angle of the air curtain device, and/or prompting the judgment result and/or prompting an operation suggestion; after waiting for a preset time, judging again;

preferably, when the air curtain cooker is opened, the user is prompted to select a judgment mode in the using process of the air curtain cooker.

The invention further introduces an air curtain cooker which comprises an air curtain device for generating an air curtain and a flame protection device for preventing air curtain airflow from influencing flame combustion of the air curtain cooker.

The invention is further configured to: the air curtain cooker comprises a heating device for providing energy for cooking, and the flame protection device is at least arranged on one side of the heating device;

preferably, the heating means comprises a burner;

preferably, at least part of the flame protection device is annular and is arranged around the heating device.

The invention is further configured to: the flame protection device protects the flame by forming shielding airflow around the flame;

preferably, the shielding airflow is distributed in a surface shape and at least shields one side of the flame;

preferably, the shielding airflow is jetted from the upper side of the air curtain cooker along a certain jetting direction;

preferably, the shielding airflow strength of the flame protection device is less than the strength of the air curtain airflow.

The invention is further configured to: the spraying direction of the shielding airflow is adjustable;

preferably, the injection direction is obliquely upward and directed away from the flame center;

preferably, the included angle between the spraying direction and the vertical direction is 0-90 degrees.

The invention is further configured to: the air curtain cooker comprises a liquid containing device arranged outside a flame combustion position, and the flame protection device is arranged along at least one part of the outer peripheral side of the liquid containing device;

preferably, the flame protection device is arranged at a position where the liquid containing device is connected with a cooking bench of the air curtain cooking range.

The invention is further configured to: the air curtain device is internally provided with a cavity allowing gas to flow, the cavity is of an annular structure/groove-shaped structure, and the liquid containing device and/or the heating device are/is embedded into the air curtain device;

preferably, the liquid containing device and/or the heating device is embedded in the central vacancy of the annular structure/embedded in the groove of the groove-shaped structure.

The invention is further configured to: at least part of the flowing gas of the shield gas flow is provided by the air curtain device;

preferably, the flame protection device is communicated with the air duct of the air curtain device.

The invention is further configured to: the motive force for the shield airflow is at least partially provided by the air curtain device;

preferably, said flame protection means and said air curtain means share air flow powered fan means.

The invention is further configured to: the air outlet of the air curtain device is arranged towards the heating device of the air curtain device stove in an openable and closable manner;

preferably, the air outlet is of a continuous strip-shaped hole structure, and the extending direction of the air outlet is parallel to the horizontal direction;

an air outlet of the air curtain device protrudes out of a cooking bench of the air curtain cooker;

preferably, the air outlet portion shields the air outlet at the upper side.

The invention further introduces an air curtain cooker which comprises an air curtain device for generating an air curtain and a flame state acquisition device, wherein the flame state acquisition device acquires the flame state of the cooker, generates and records corresponding flame data, and a control system of the air curtain cooker adjusts the working state of the air curtain device and/or prompts the judgment result of the working state of the air curtain device and/or prompts an operation suggestion according to the flame data.

The invention is further configured to: the flame state acquisition device acquires the flame state of the cooker every time the flame state changes, and generates historical flame data for evaluating other data generated thereafter.

The invention is further configured to: the flame state acquisition device judges whether the current flame state can generate historical flame data or not according to the fluctuation and the holding time of the flame state;

preferably, when historical flame data are generated, the flame state acquisition device records the fluctuation and the holding time of the flame state, and when the duration of the fluctuation of the flame state in the range of the flame fluctuation threshold exceeds a corresponding set value, the fluctuation of the flame state is recorded as the historical flame data;

preferably, the adjustment of the operating condition of the air curtain device is delayed until the generation of the historical flame data is completed.

The invention is further configured to: and the control system judges whether the working state of the current air curtain device needs to be adjusted according to the flame state, and adjusts the working state of the air curtain device and/or prompts the judgment result and/or prompts an operation suggestion when the judgment result of the air curtain state is positive.

The invention is further configured to: when the air curtain state judgment result is yes, the control system predicts whether the adjustment of the working state of the air curtain device can affect the flame state according to the historical flame data and the current working state of the air curtain device, and controls the adjustment range of the working state of the air curtain device according to the prediction result;

preferably, the prediction is made according to corresponding historical flame data recorded by the air curtain cooktop and the result of corresponding historical adjustments.

The invention is further configured to: after the working state of the air curtain device is adjusted, the control system judges whether the adjustment is effective or not according to the current flame data;

preferably, when said current flame data indicates that the degree of irregularity/fluctuation of the flame condition distribution exceeds a corresponding threshold, then said adjustment is invalid;

preferably, when the adjustment is invalid, the degree of adjustment of the operating state of the air curtain device is reduced/increased.

The invention is further configured to: after the working state of the air curtain device is adjusted, the control system judges whether the adjustment is effective or not according to the current flame data and the current flame state;

preferably, when the flame data does not match the current flame state, the adjustment is invalid;

The invention is further configured to: the flame state is obtained by a control system of a cooktop, the control system of the cooktop comprising: a switch knob of the stove;

preferably, the flame condition includes: flame height, flame temperature field condition, stability of flame temperature field;

preferably, the operating state of the air curtain device includes: the on and off state of the air curtain device and/or the air curtain airflow intensity and/or the air curtain angle of the air curtain device.

The invention is further configured to: when the adjustment is invalid, if the flame state changes into the change of output increase, the air curtain device is opened, and/or the air curtain airflow strength is increased, and/or the air curtain angle tends to be far away from the cooker; if the flame state change is an output reduction change, the air curtain device is closed, and/or the air curtain airflow strength is reduced, and/or the air curtain angle is close to the cooker.

The invention is further configured to: the air curtain angle comprises a primary angle of 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 perpendicular to the movement direction of the air curtain airflow;

preferably, the adjustment of the primary angle precedes the adjustment of the secondary angle;

preferably, after the primary angle is adjusted, the control system judges the air curtain angle and the flame state, and if the judgment result is that the two are within the corresponding threshold value range of the corresponding relationship, the secondary angle is not adjusted.

After the technical scheme is adopted, compared with the prior art, the invention has the following beneficial effects.

1. According to the air curtain cooker, the air outlet is arranged into the plurality of air outlet units which can be controlled respectively, so that the control system of the cooker can respectively and specifically control the plurality of air outlet units according to the actual working condition of the cooker, and the air curtain is opened only at the required part. The range hood is usually matched with a range hood for use, the range hood has large suction force due to the development of the range hood technology, negative pressure is difficultly caused in a kitchen environment in the using process, discomfort of a user is caused, and therefore the window is opened when the range hood is used by the user, and the balance of indoor and outdoor air pressure is guaranteed. However, this operation causes the air flow between the outdoor air and the range hood, so that the diffusion direction of the oil smoke generated in the use process of the kitchen range is not necessarily upward or uniformly diffused all around. It is possible that the user spreads the oil smoke from the left/right side thereof during the use of the cooktop. Or, the direction of the airflow in the actual use environment is changed, and the direction and range of the oil smoke diffusion are more complicated. If the air curtain devices which are opened in real time are arranged on the periphery of the cooker, the power consumption is obviously very high.

2. According to the air curtain cooker, the air outlet of the air curtain device is designed to be of the strip-shaped hole structure, so that air curtain airflow generated at each air outlet is continuous and uniform along the extending direction of the air outlet, and the shielding effect of the air curtain can be guaranteed.

3. The air curtain cooker introduced by the invention is added with the function of acquiring the environmental conditions of the surrounding environment. Preferably, the state acquisition device is arranged on the cooker, and if the oil smoke is diffused to the surface of the cooker or nearby, the state acquisition device indicates that the air curtain is required to be opened at the corresponding position. When the environment state of a certain position nearby the kitchen range reaches a corresponding threshold value, the air curtain device of the corresponding position is opened, oil smoke isolation is realized at the position, and the oil smoke is guided into the range hood.

4. The working state of the air curtain device is further divided by the air curtain cooker introduced by the invention, wherein one item of the air curtain angle at least comprises a first-stage angle and a second-stage angle, and the first-stage angle can be adjusted by adjusting the turnover angle strip of the air deflector at the air outlet of the air curtain device. The secondary angle can be adjusted by adjusting the opening and closing range and the opening and closing angle (the range covered by the angle) of the air outlet. The adjustment of one of them one-level angle can obviously change the working effect of air curtain device, then the one-level angle of preferential adjustment air curtain device.

5. By the air curtain cooker, the acquisition position of the environmental state and the air outlet unit are correspondingly arranged, so that when a control system of the cooker receives a signal sent by a certain position and exceeds a corresponding threshold value, the air curtain device at the position is opened/the working state of the air outlet unit at the position is correspondingly adjusted

6. The air curtain kitchen range introduced by the invention is designed for adjusting frequency and adjusting mode of the air outlet units at different positions respectively. For example, the adjustment frequency of the outlet unit located at the rear side of the cooker is smaller than that of the outlet unit located at the front side. The rear side is the side facing away from the user.

7. According to the air curtain cooker, the air outlet is higher than the cooking bench, so that even if water, dust and other foreign matters which are easy to move exist on the cooking bench or in an environment with complex airflow, the foreign matters cannot be brought into the air outlet, and the foreign matters are prevented from being brought into the air curtain device or the cooker. The cleanness of the equipment is ensured to a great extent.

8. According to the air curtain kitchen range, the air outlet is higher than the upper surface of the cooking bench, so that the forming position of the air curtain is higher than the cooking bench. Because the cooking bench is also provided with the heating device, the design can reduce the influence of the air curtain on the flame of the heating device. For example, when other cookware is prevented on the cooking bench, the air curtain may change direction under the shielding of the cookware, but the design of the invention ensures that even if the condition happens, the affected air curtain flows upwards instead of along the surface of the cooking bench, thereby ensuring the combustion stability of the heating device.

9. According to the air curtain cooker, the air outlet part is designed, so that the air outlet can be arranged around the cooking bench along the annular shape, and the arrangement position of the air outlet is more flexible. And, air-out portion is boss column structure, constitutes the support to the air curtain air outlet in a plurality of faces, guarantees the structural stability of air outlet. The cooking bench is characterized in that the air outlet is provided with a plurality of air outlets, and the air outlets are arranged on the air outlets. And, the design of orientation of air outlet can ensure that the air curtain air current can not blown on one's body the user, avoids arousing user's discomfort.

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 schematic view of an air curtain cooktop in one embodiment of the invention;

fig. 2 is a schematic view of an air curtain cooktop in one embodiment of the invention.

FIG. 3 is a partial structural schematic view of an air curtain cooking range in a closed state of an air outlet in one embodiment of the invention;

FIG. 4 is a schematic structural view of a part of an air outlet of an air curtain cooking range in an open state in one embodiment of the invention;

FIG. 5 is a partial structure diagram of an air curtain cooking appliance in a closed state of an air outlet in one embodiment of the invention; .

In the figure: 1. an air outlet; 2. an air outlet part; 3. a cooking bench; 4. a control system; 5. a liquid containing device; 6. a heating device; 7. a flame protection device; 8. a wind direction adjustment member; 9. a yaw linkage.

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 air curtain cooker comprises an air curtain device for generating an air curtain, wherein an air outlet of the air curtain device comprises at least two air outlet units which can independently realize adjustment/control of working states, and the relative positions of different air outlet units and a heating device of the air curtain cooker are different. The air outlet is set to be a plurality of air outlet units which can be controlled respectively, and then the control system of the stove can respectively and pertinently control the air outlet units according to the actual working condition of the stove, and the air curtain is opened only at the required position. The range hood is usually matched with a range hood for use, the range hood has large suction force due to the development of the range hood technology, negative pressure is difficultly caused in a kitchen environment in the using process, discomfort of a user is caused, and therefore the window is opened when the range hood is used by the user, and the balance of indoor and outdoor air pressure is guaranteed. However, this operation causes the air flow between the outdoor air and the range hood, so that the diffusion direction of the oil smoke generated in the use process of the kitchen range is not necessarily upward or uniformly diffused all around. It is possible that the user spreads the oil smoke from the left/right side thereof during the use of the cooktop. Or, the direction of the airflow in the actual use environment is changed, and the direction and range of the oil smoke diffusion are more complicated. If the air curtain devices which are opened in real time are arranged on the periphery of the cooker, the power consumption is obviously very high.

Example one

This embodiment air curtain cooking utensils at least two adjacent the air outlet unit sets up in succession for at least part of air outlet is continuous bar pore structure, the extending direction and the horizontal direction of air outlet are parallel. The air outlet of the air curtain device is designed to be of a strip-shaped hole structure, and air curtain airflow generated at each air outlet is continuous and uniform along the extending direction of the air outlet, so that the shielding effect of the air curtain can be guaranteed. The air outlet is designed into a strip-shaped hole structure, so that the continuity of an air curtain generated by the air curtain device can be guaranteed, and the problem that no air flow exists locally on the generated air curtain can be avoided. If the air outlet is designed to be a plurality of point-shaped arrangement structures in the air curtain process, the positions between the points are positions where air pressure meets the bottom due to no air outflow, so that the air pressure at each position of the air curtain is uneven, a turbulent flow phenomenon is caused, and the direction maintenance of the air curtain is influenced. And, the design of this air outlet of a strip poroid relies on air-out portion at least for the structure of wrapping up completely on two faces, just this kind of structure just can provide good support for the air outlet for the structure of bar air outlet can realize. In order to ensure the continuity of the strip-shaped holes, the adjacent air outlet units can be kept connected at the positions of the strip-shaped holes, so that the structure of the strip-shaped holes continuously transits from one air outlet unit to another air outlet unit.

Example two

The air curtain cooker introduced in the embodiment is different from the above embodiments in that: and the air curtain cooker controls the working state of the air outlet unit according to the surrounding environment state. The function of acquiring the environmental condition of the surrounding environment is added. Preferably, the state acquisition device is arranged on the cooker, and if the oil smoke is diffused to the surface of the cooker or nearby, the state acquisition device indicates that the air curtain is required to be opened at the corresponding position. When the environment state of a certain position nearby the kitchen range reaches a corresponding threshold value, the air curtain device of the corresponding position is opened, oil smoke isolation is realized at the position, and the oil smoke is guided into the range hood.

Further, the air curtain cooker in this embodiment respectively controls at least two air outlet units according to the ambient state around the air curtain cooker. The range working area and the surrounding environment are isolated in different areas, so that the oil smoke is effectively isolated while the workload of the air curtain device is avoided being increased, and the oil smoke is guided into the range hood in a targeted manner.

Preferably, the air curtain cooker comprises a state acquisition device, which is used for acquiring the environmental state around the air curtain cooker and generating corresponding environmental state data. Preferably, the state acquisition device is connected with the air curtain device through a control system of the air curtain cooker, and the control system controls the working state of the air curtain device according to the environmental state data. The control system is used for controlling the air outlet unit, so that the adjustment of the air outlet unit is automatic, the operation of a user is not needed, and the burden of the user is reduced. Or the cooking appliance can send the current state or the suggestion of the user to the user, and the user judges whether the adjustment is needed or not or the user carries out the adjustment by himself.

EXAMPLE III

The air curtain cooker introduced in the embodiment is different from the above embodiments in that: the operating condition of the tuyere unit includes: on, off, and/or curtain angle. The environmental states include: ambient temperature and/or ambient humidity and/or ambient oil smoke content. In the present embodiment, an environmental state is introduced, where the environmental state and the operating state of the air curtain device both include a plurality of contents, and the corresponding relationship between the environmental state and the operating state may be various. One and/or more of the plurality of states of the environmental state correspond to one and/or more of the operating states of the air curtain device. In the evaluation/determination, a one-to-many evaluation/determination may be performed between one of the operating states of the air curtain device and the plurality of states of the environmental state, or several of the operating states of the air curtain device and the plurality of states of the environmental state may be respectively subjected to one-to-one evaluation/determination. Preferably, the state acquisition device is arranged on at least one edge around the air curtain cooker.

Example four

The air curtain cooker introduced in the embodiment is different from the above embodiments in that: the state acquisition device is arranged corresponding to the air outlet unit. The number of the state acquisition devices is at least two, and the at least two state acquisition devices are arranged in one-to-one correspondence with the air outlet units. And the control system respectively controls the at least two air outlet units according to the data generated by the different state acquisition devices. The acquisition position of the environmental state and the air outlet unit are correspondingly arranged, and then when a control system of the stove receives a signal sent from a certain position and exceeds a corresponding threshold value, the air curtain device at the position is opened/the working state of the air outlet unit at the position is correspondingly adjusted

EXAMPLE five

The air curtain cooker introduced in the embodiment is different from the above embodiments in that: the air curtain kitchen range respectively controls different air outlet units according to the environment states around the different air outlet units. And when the state acquisition device judges that the data of the environmental state exceed the corresponding threshold value, correspondingly adjusting the working state of the corresponding air outlet unit. The air curtain kitchen range adjusts the air outlet unit in real time and/or periodically. The air curtain cooking utensils are different to the adjustment frequency of the air outlet unit of different positions. Through the air curtain cooking utensils that this embodiment introduces, the adjustment frequency, the adjustment mode of the air outlet unit to different positions have designed respectively. For example, the adjustment frequency of the outlet unit located at the rear side of the cooker is smaller than that of the outlet unit located at the front side. The rear side is the side facing away from the user.

EXAMPLE six

The air curtain cooker introduced in the embodiment is different from the above embodiments in that: 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 flowing direction of the air curtain airflow.

Further, the air curtain cooker in this embodiment adjusts the primary angle in a sequence prior to the secondary angle; the working state of the air curtain device is further divided, wherein one item of the air curtain angle at least comprises a first-stage angle and a second-stage angle, and the first-stage angle can be adjusted by adjusting the turnover angle strip of the air deflector at the air outlet of the air curtain device. The secondary angle can be adjusted by adjusting the opening and closing range and the opening and closing angle (the range covered by the angle) of the air outlet. The adjustment of one of them one-level angle can obviously change the working effect of air curtain device, then the one-level angle of preferential adjustment air curtain device.

EXAMPLE seven

As shown in fig. 1 and fig. 2, the air curtain cooker described in the present embodiment is different from the above embodiments in that: the air curtain cooker comprises a flame protection device 7, wherein the flame protection device 7 is arranged around the heating device 6 and used for protecting the flame of the heating device in a mode of spraying air flow along a certain direction. Compared with the air curtain type range hood in the prior art, the air outlet of the air curtain device is arranged on the cooking bench, the air outlet position of the air curtain device is closer to the heating device of the kitchen range, and the flame combustion is probably influenced at the initial stage of air curtain generation, the closing stage of the air curtain device and the wind direction/air quantity adjusting stage of the air curtain, so that the heating device is necessarily protected at the whole stage of air curtain change or air curtain use. Through the technical scheme that this embodiment introduces, set up flame protection device around heating device, keep apart flame and surrounding environment, can reduce the influence of air curtain to flame by great degree.

Further, the air curtain kitchen range described in this embodiment has an included angle between the air flow direction sprayed from the flame protection device 7 and the vertical direction, and the included angle ranges from 0 ° to 60 °. Preferably, the flame guard 7 is of annular construction. Through the flame protection device introduced by the embodiment, the heating device is enclosed in the middle of the flame protection device, and the heating device can play a role in protection in all directions.

Further, the flame protection device 7 of the air curtain cooker described in this embodiment is disposed around the liquid container of the air curtain cooker. The design can ensure the distance between the flame protection device and the heating device and realize the function of the flame protection device. Preferably, a certain included angle is formed between the air flow sprayed by the flame protection device and the air curtain air flow, and the included angle ranges from 0 degree to 90 degrees. So that the flame protection means can effectively blow the air curtain flow close to the vicinity of the heating means away.

Further, the air curtain cooker described in this embodiment has a flame protection device 7 connected to the air curtain device, and the jet air flow required by the flame protection device is derived from the air flow generated by the air curtain device. The problem of airflow source of the flame protection device is effectively solved through the design. And does not increase the structural burden of the apparatus. Preferably, the jet air flow direction of the flame protection device is adjustable.

Example eight

As shown in fig. 1 to 2, the air curtain cooker of the present invention includes an air curtain device, and an air outlet 1 of the air curtain device protrudes from a cooking bench 3 of the air curtain cooker. According to the air curtain cooker, the air outlet is higher than the cooking bench, so that even if water, dust and other foreign matters which are easy to move exist on the cooking bench or in an environment with complex airflow, the foreign matters cannot be brought into the air outlet, and the foreign matters are prevented from being brought into the air curtain device or the cooker. The cleanness of the equipment is ensured to a great extent.

As shown in fig. 1, the air curtain cooker described in this embodiment includes an air outlet portion 2 for controlling the air curtain generation position and forming the air outlet profile, the air outlet portion 2 is disposed on at least one edge of the air curtain cooker, preferably, the air outlet portion 2 is disposed on three edges of the air curtain cooker, and the edge far away from the user is not disposed with the air outlet portion. And the air outlet part on each side is controlled by different switches, and the opening/closing operation of the air curtain on a certain side can be selectively implemented.

Further, the air curtain cooking utensils air-out part 2 that this embodiment introduced is at least partly protrusion in the top of a kitchen range 3 setting, and air-out part 2 is boss column structure, and air-out part 2 is the rectangle along its extending direction's section, and its upper surface is parallel with the horizontal plane to realize the function of support.

Further, the side of the air outlet 2 of the air curtain cooker (the side facing the heating device of the air curtain cooker) described in this embodiment facing the middle of the air curtain cooker constitutes the air outlet 1 of the air curtain device. A certain distance is arranged between the air outlet 1 and the cooking bench in the vertical direction, and the air outlet part 2 is of a structure completely wrapped on two surfaces at least. The included angle between the orientation of the air outlet 1 and the vertical direction is 30-90 degrees. The orientation of air outlet 1 is adjustable, avoids influencing the flame burning when satisfying the air curtain effect.

Through the air curtain cooking utensil introduced by the embodiment, the air outlet is higher than the design of the upper surface of the cooking bench, so that the forming position of the air curtain is higher than the cooking bench. Because the cooking bench is also provided with the heating device, the design can reduce the influence of the air curtain on the flame of the heating device. For example, when other cookware is prevented on the cooking bench, the air curtain may change direction under the shielding of the cookware, but the design of the invention ensures that even if the condition happens, the affected air curtain flows upwards instead of along the surface of the cooking bench, thereby ensuring the combustion stability of the heating device. And, the design to air-out portion makes the air outlet can follow annular setting around the top of a kitchen range, provides stronger flexibility to the position that sets up of air outlet. And, air-out portion is boss column structure, constitutes the support to the air curtain air outlet in a plurality of faces, guarantees the structural stability of air outlet. The cooking bench is characterized in that the air outlet is provided with a plurality of air outlets, and the air outlets are arranged on the air outlets. And, the design of orientation of air outlet can ensure that the air curtain air current can not blown on one's body the user, avoids arousing user's discomfort.

Example nine

As shown in fig. 1, the air curtain cooker described in the present embodiment is different from the above embodiments in that: the air outlet 1 is a strip-shaped hole structure, and the extending direction of the air outlet 1 is the horizontal direction, so that the air outlet 1 is a through structure in the extending direction.

Through the air curtain cooking utensils that this embodiment introduced, can guarantee the continuity of the air curtain that the air curtain device produced for the bar pore structure with the air outlet design, guarantee that the air curtain of production can not appear the problem that the part does not have the air current. If the air outlet is designed to be a plurality of point-shaped arrangement structures in the air curtain process, the positions between the points are positions where air pressure meets the bottom due to no air outflow, so that the air pressure at each position of the air curtain is uneven, a turbulent flow phenomenon is caused, and the direction maintenance of the air curtain is influenced. And, the design of this air outlet of a strip poroid relies on air-out portion at least for the structure of wrapping up completely on two faces, just this kind of structure just can provide good support for the air outlet for the structure of bar air outlet can realize.

Further, the air curtain cooker described in the embodiment has a flat top of the air curtain device and forms the cooking bench 3 of the air curtain cooker. Through the air curtain kitchen range introduced by the embodiment, part of the structure of the air curtain device is adjusted to form a cooking bench. The wind curtain device has no connection position (gap, gully) between the wind curtain device and the cooking bench, and is a completely integrated structure. Reduce the possibility that deposits up the foreign matter on the top of a kitchen range, further reduce the possibility that the foreign matter got into the air curtain air outlet from structural design.

Further, the air curtain device of the air curtain cooking range described in the present embodiment includes a fan device (not shown in the drawings) for providing power for air flow, and at least a portion of the fan device is disposed at a lower portion of the cooking top 3. Preferably, at least part of the fan means is disposed within the cavity inside the air curtain means. The air curtain device comprises an air quantity adjusting piece (not shown in the figure) which extends to the outside of the air curtain cooker and is connected with the fan device, and the air quantity adjusting piece is used for controlling the air quantity generated by the fan device.

Preferably, the air volume adjusting part is connected with a control system 4 of the air curtain cooker, and the air volume generated by the fan device is adjusted according to the state of the control system 4. The control system 4 may be a fire switch and/or a fire adjustment device. Through the air curtain cooking utensils that this embodiment introduces, with the cooperation relation established between fan device and the control system, then the fan device can adjust its self working method according to control system's behavior. When the control system adjusts the firepower to be large, the air curtain fan device increases the output of the air quantity, and the efficiency of the air curtain is improved. When the control system adjusts the firepower, the fan device of the air curtain reduces the output of the air quantity, and the efficiency of the air curtain is reduced. And the automatic control of the efficiency and the state of the air curtain is realized.

Example ten

The air curtain cooker introduced in the embodiment is different from the above embodiments in that: the air outlet part is internally provided with a wind direction adjusting piece for adjusting the wind direction of the air outlet relative to the position of the air outlet, the wind direction adjusting piece is of a baffle plate structure capable of overturning for a certain angle, and the air outlet is covered and closed when the relative position of the wind direction adjusting piece is parallel to the vertical direction.

Further, the air outlet portion of the air curtain cooker introduced in this embodiment includes a wind direction control member connected to the wind direction adjusting member and extending to the outside of the air curtain cooker, and the wind direction control member is used for controlling the angle of the wind direction adjusting member. Preferably, at least a portion of the wind direction control member is a knob-like structure.

Further, the wind direction control member of the wind curtain cooker described in this embodiment is connected to the control system of the wind curtain cooker, and the angle of the wind direction adjustment member is adjusted according to the state of the control system. The control system may be a fire switch and/or a fire adjustment device.

Through the air curtain cooking utensils that this embodiment introduced, increased the design of wind direction regulating part, then the direction of air curtain can be guided by wind direction regulating part. Because the air curtain adjusting part is the moving part in the equipment use, sets up it in the inside of air-out portion, can avoid it to receive the pollution of greasy dirt effectively to the cavity that constitutes through air-out portion protects it, can also avoid the motion of wind direction adjusting part to cause the influence to the user. Further, the function that the air outlet can be closed to the wind direction regulating part can be realized in a position at least, then with the air outlet shutoff when equipment does not need the air curtain function, further guarantee this position department can not get into the foreign matter.

EXAMPLE eleven

As shown in fig. 1, the air curtain cooker described in the present embodiment is different from the above embodiments in that: the air curtain cooking appliance comprises a heating device 6 embedded in the air curtain device. Further, the air curtain cooker described in the present embodiment includes a control system 4 for controlling the operating state of the heating device 6, and the control system 4 is embedded in the air curtain device. The heating device and the control system are designed to be embedded into the air curtain device, so that the structural integrity of the equipment is improved. Because the air curtain device forms the main frame part of the equipment, other parts such as the heating device and the like only need to be arranged on the air curtain device when the equipment is produced. In addition, the structural design of the air curtain cooker in this embodiment greatly expands the internal space of the air curtain device, so that the air curtain cooker can have a spacious size structure in all directions, and therefore, fans with different sizes, models and air volume generation principles can be used as the fan device of the air curtain cooker introduced in this embodiment. The fan device adopted by the air curtain cooker introduced in the embodiment can comprise an axial flow fan or a centrifugal fan, and the size and the model can be selected widely, so that conditions are provided for forming a high-quality air curtain.

Further, the air curtain cooker introduced by the embodiment comprises a liquid containing device embedded in the cooking bench; the air curtain device is internally provided with a cavity for allowing gas to flow. Preferably, the cavity is an annular structure/a groove-shaped structure, and the heating device is embedded in the central vacancy of the annular structure/embedded in the groove of the groove-shaped structure.

Preferably, the liquid containing device is arranged around the heating device of the air curtain cooker.

Example twelve

As shown in fig. 3 to 5, the air curtain cookers in the present embodiment are different from the above embodiments in that: in this embodiment, the lower end of the wind direction adjusting member 8 at the air outlet 1 is connected with the air outlet 2 in a deflectable manner through the deflection connecting member 9, and the upper end of the wind direction adjusting member can deflect to the outside of the air outlet 1 around the deflection connecting member 9, so as to open/adjust the direction of the air curtain at the air outlet. When it is closed, the air outlet can be completely blocked.

Figure 5 the structure, air-out portion top extends certain distance towards the opening direction of air outlet, then the scope of sheltering from in the top of air outlet is bigger, increases its protective scope to the air outlet, protection wind direction regulating part 8 that also can the certain degree.

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

1. The utility model provides an air curtain cooking utensils, its characterized in that, is including the air curtain device that generates the air curtain, the air outlet of air curtain device is set up to including two at least air outlet units that can independently realize operating condition adjustment/control, different air outlet units with the heating device's of air curtain cooking utensils relative position is different.

2. The air curtain cooking stove according to claim 1, wherein at least two adjacent air outlet units are continuously arranged, so that at least part of the air outlet is of a continuous strip-shaped hole structure;

3. The air curtain cooker as claimed in claim 1, wherein the air curtain cooker controls the working state of the air outlet unit according to the ambient state around the air curtain cooker;

4. The air curtain hob according to claim 3, characterized in that the operating state of the tuyere unit comprises: on, off, and/or air curtain angle;

5. The air curtain cooking appliance of claim 3, wherein the state acquiring device is arranged corresponding to the air outlet unit;

6. The air curtain cooking appliance as claimed in any one of claims 1 to 5, wherein the air curtain cooking appliance implements respective control of different air outlet units according to the environmental state around the different air outlet units;

7. The air curtain cooker as claimed in claim 4, wherein the air curtain angle of the air curtain device comprises a primary angle of the air curtain airflow relative to the vertical direction and/or a secondary angle of the angular coverage of the air curtain airflow at the air outlet of the air curtain device perpendicular to the flow direction thereof;

8. The air curtain cooker as claimed in claim 7, wherein when it is determined that the correspondence between one of the primary angle and the secondary angle and the environmental state exceeds a corresponding threshold, the primary angle/the secondary angle of the air curtain device is adjusted, and/or a result of the determination and/or an operation suggestion are/is prompted;

9. The air curtain cooker of claim 1, wherein an air outlet of the air curtain device protrudes from a cooktop of the air curtain cooker;

preferably, the air outlet part shields the air outlet at the upper side;

10. The air curtain cooktop of claim 1, comprising flame protection means to prevent air curtain gas flow from affecting combustion of the heating device;