CN211854129U - Adjustable air curtain device of range hood based on volume of airing exhaust of operation - Google Patents
Adjustable air curtain device of range hood based on volume of airing exhaust of operation Download PDFInfo
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- CN211854129U CN211854129U CN202020508278.0U CN202020508278U CN211854129U CN 211854129 U CN211854129 U CN 211854129U CN 202020508278 U CN202020508278 U CN 202020508278U CN 211854129 U CN211854129 U CN 211854129U
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Abstract
The utility model discloses an adjustable air curtain device of range hood based on volume of airing exhaust of operation relates to the kitchen utensils and appliances field, including being used for monitoring range hood volume of airing exhaust's air sensor and installing the adjustable air curtain device in the range hood chassis outside. The real-time exhaust air quantity of the range hood is monitored by the air quantity sensor, the signal is transmitted to the air curtain fan controller and the guide vane controller, and the outflow parameters of the air curtain, namely the outflow speed and the outflow angle of the air curtain, are changed by adjusting the rotating speed of the fan and the direction of the guide vanes according to the relation between the input exhaust air quantity and the outflow parameters of the air curtain. Therefore, the air curtain outflow parameters are correspondingly changed under the condition of changing the exhaust air volume of the range hood, and the aim of better realizing the air curtain effect is fulfilled; the utility model discloses can deal with the kitchen culinary art oil smoke control under the different operating condition of range hood, have characteristics such as nimble simple and convenient, energy-efficient, practicality are strong.
Description
Technical Field
The utility model relates to a kitchen utensils and appliances field especially relates to an adjustable air curtain device of range hood based on volume of airing exhaust of operation.
Background
The range hood is an important local exhaust device in a kitchen and plays a role in removing cooking oil smoke in the kitchen and creating a healthy and comfortable indoor living environment. The trapping performance of the range hood is an important index for evaluating the quality degree of the range hood. There are many methods for improving the trapping performance, such as improving the exhaust amount of the range hood, changing the suction port form of the range hood, or adding a side plate. Air curtain type range hoods are also one way to improve trapping performance.
Compared with the traditional range hood, the air curtain type range hood has the advantages that an air curtain is additionally arranged on the front side of the range hood, so that the cooking heat plume is prevented from expanding and overflowing at a certain height, and a good kitchen environment is created. However, because the air flow characteristics in the kitchen are complex, the boundary layer of the cooking heat plume is separated, the thermal expansion effect is obvious, the characteristics of the cooking heat plume can be correspondingly changed under the influence of the exhaust air volume of the range hood, and meanwhile, the air curtain can also be deflected to a certain degree under the influence of the exhaust air of the range hood. The current air curtain type range hood technology does not consider the two aspects. In the design process of the existing air curtain type range hood, a design method of a fixed parameter type is often adopted, namely the same air curtain outflow parameter is adopted for different exhaust air volume gears of the range hood, and the complicated cooking heat plume change condition cannot be adapted. Research and practice also prove that the air curtain parameters designed aiming at a certain exhaust volume can have the phenomenon that the air curtain is invalid or even has opposite effects when used for other exhaust volumes, cannot play the role of the air curtain and are not beneficial to controlling cooking oil smoke in a kitchen. Meanwhile, in practical application, due to the influence of residence flue pressure fluctuation, the exhaust volume of the range hood often deviates from a rated value under a corresponding gear, and the fixed parameter type air curtain cannot adapt to a complex kitchen environment in the cooking process.
Therefore, on the basis of designing the air curtain outflow parameters of different exhaust air volumes, the real-time exhaust air volume monitoring range hood is necessary to correspondingly adjust the air curtain outflow parameters.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an adjustable air curtain device of range hood based on volume of airing exhaust of operation can reach the purpose of maintaining good kitchen environment according to range hood's real-time volume of airing exhaust automatic adjustment air curtain parameter of effluenting.
In order to achieve the above object, the utility model provides a following scheme:
the utility model provides an adjustable air curtain device of range hood based on volume of airing exhaust of operation, including being used for monitoring range hood volume of airing exhaust's air sensor and installing the adjustable air curtain device in the range hood chassis outside, the integration has fan and guide vane in the adjustable air curtain device, the air curtain fan controller that is used for regulating and control air curtain velocity of outflowing is connected to the fan, guide vane connects the guide vane controller that is used for regulating and control air curtain angle of outflowing, air curtain fan controller with guide vane controller all with the air sensor signal connection.
Optionally, the adjustable air curtain device further comprises an air curtain fan box, the fan and the guide vanes are installed in the air curtain fan box, and the adjustable air curtain device and the chassis of the range hood are separated and sealed by an inclined plate.
Optionally, the guide vane is installed in the air curtain fan box through a guide rotating shaft, and the guide rotating shaft is electrically connected with the guide vane controller.
Optionally, the guide vane is welded to the guide rotating shaft.
Optionally, the fan is supported on the upper portion of the guide vane through a bracket.
Optionally, the outlet of the fan is connected with the guide vane by a square interface.
Optionally, the fan is connected with the square interface bolt.
Optionally, an air curtain slit outlet is formed in the bottom of the adjustable air curtain device, and the fan and the guide vane are both arranged above the air curtain slit outlet.
The utility model discloses for prior art gain following technological effect:
the utility model provides an adjustable air curtain device of range hood based on volume of airing exhaust of operation, through installing the sensor in the exhaust pipe (or through monitoring range hood motor parameter) monitoring range hood volume of airing exhaust in real time, give air curtain fan controller and guide vane controller with this signal transmission simultaneously, according to the relation of the volume of airing exhaust and the air curtain parameter of effluenting that has input, adjust the orientation of fan rotational speed and guide vane and change the parameter of effluenting of air curtain, air curtain velocity of effluenting promptly and the angle of effluenting. Therefore, the air curtain outflow parameters are correspondingly changed under the condition of changing the exhaust air volume of the range hood, and the aim of better realizing the air curtain effect is fulfilled; the range hood can be used for controlling cooking oil fume in a kitchen under different operation conditions, and has the characteristics of flexibility, simplicity, convenience, high efficiency, energy conservation, strong practicability and the like.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
FIG. 1 is a schematic structural view of the adjustable air curtain device of the range hood based on the operation exhaust air volume of the present invention;
FIG. 2 is a schematic view of the air curtain guide vane in a closed position;
FIG. 3 is a schematic view of the air curtain guide vane in an open position;
FIG. 4 is a schematic view of the construction of an air curtain fan box;
FIG. 5 is a controllable flow chart of the adjustable air curtain device of the range hood of the present invention;
wherein the reference numerals are: 1. an air quantity sensor; 2. an air curtain fan box; 3. a guide vane; 4. an air curtain fan controller; 5. a guide vane controller; 6. a diversion rotating shaft; 7. a square interface; 8. an air curtain slit outlet; 9. frequency conversion fan.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
The first embodiment is as follows:
as shown in fig. 1-5, the present embodiment provides an adjustable air curtain device of a range hood based on an operation exhaust air volume, wherein the adjustable air curtain device is additionally installed at the front end of a chassis of a conventional range hood, and the air curtain is provided with a variable frequency fan 9 and a rotatable guide vane 3 to meet the requirements of adjusting the outflow speed and the outflow angle of the air curtain. Meanwhile, the variable frequency fan 9 and the guide vane 3 are respectively connected with an air curtain fan controller 4 and a guide vane controller 5, and in order to monitor the real-time exhaust air quantity of the range hood, an air quantity sensor 1 is additionally arranged in an exhaust pipeline and used for monitoring the exhaust air quantity value and transmitting signals to the air curtain fan controller 4 and the guide vane controller 5.
In this embodiment, the variable frequency fan 9, the air curtain fan controller 4, and the guide vane controller 5 are integrated in the air curtain fan box 2, and the variable frequency fan 9 is supported on the upper portion of the guide vane 3 by using a bracket. As shown in fig. 1-3, the air curtain fan box 2 is separated from the lower chassis shell of the range hood and sealed by an inclined plate; the guide rotating shaft 6 is connected with the guide vanes 3 through welding, one end of the guide rotating shaft 6 is connected with a driving motor, specifically, the driving motor is in signal connection with the guide vane controller 5, when the guide vane controller 5 controls the rotating shaft to rotate, the guide vanes 3 correspondingly rotate, and an air curtain strip seam outlet 8 is formed at the front end of the range hood.
In this embodiment, as shown in fig. 4, the outlet of the variable frequency fan 9 is connected to the guide vanes 3 by using the square joints 7, so as to ensure that the air supplied by the fan completely passes through the guide vanes to form an air curtain, and the connection mode between the variable frequency fan 9 and the square joints 7 is preferably a bolt connection.
Under a certain control logic (existing programming), the air curtain fan controller 4 and the guide vane controller 5 output corresponding control signals to change the outflow speed and the outflow angle of the air curtain so as to adapt to the exhaust volume of the existing range hood. The control logic is explained in detail below:
first, the different air discharge rates are determined by computer simulation (at least 5 points, e.g. 300m, are determined)3/h、500m3/h、600m3/h、800m3H and 1000m3H, the outflow parameters at the remaining discharge capacities can be obtained by interpolation), such as 600m discharge capacity of the range hood3Under the condition of/h, the outflow speed of the air curtain is 2-2.5m/s, and the outflow angle inclines to the inner side direction of the cooker by 4-6 degrees; exhaust volume of 800m in range hood3Under the condition of/h, the air curtain outflow parameter is 3-4m/s, and the outflow angle inclines 0-2 degrees towards the inner side of the pot. After the air curtain outflow parameters under different exhaust volumes are obtained, the corresponding relation between the exhaust volume of the range hood and the air curtain outflow parameters can be obtained. In the actual operation process, the air quantity sensor 1 monitors the change of the exhaust air quantity of the range hood, transmits signals to the air curtain fan controller 4 and the guide vane controller 5, and achieves the purpose of changing the outflow air speed and the outflow air angle of the air curtain by controlling the air outlet frequency of the air curtain fan and the rotating speed of the guide rotating shaft 6 driving motor.
The specific control flow is shown in fig. 5, when the pressure in the exhaust duct of the house changes and the exhaust volume of the range hood changes, the air volume sensor 1 acquires an air volume signal and transmits the air volume signal to the air curtain fan controller 4 and the guide vane controller 5 respectively. After the air curtain fan controller 4 obtains the signal, the rotating speed of the fan is adjusted according to the control logic to change the outflow speed of the air curtain; after the guide vane controller 5 obtains the signal, the angle of the guide vane 3 is adjusted according to the corresponding control logic, so that the outflow angle of the air curtain is changed. The air curtain outflow parameter reaches a reasonable value under the corresponding air discharge amount through the combined action of the two controllers.
To sum up, the utility model discloses following beneficial effect has:
(1) the utility model adopts a control mode based on the operation exhaust air volume of the range hood, adopts the air volume sensor for monitoring, has short response time, and has the advantages of flexibility, simplicity, stability and reliability;
(2) the utility model adopts a whole set of control device for the air curtain outflow parameters, can adjust the outflow speed and the outflow angle of the air curtain in real time according to the running exhaust air volume, can find the optimal value of the corresponding air curtain outflow parameters under any exhaust air volume, can play the best role at any moment, can effectively control the cooking oil fume in the kitchen, maintain good indoor environment, and can effectively improve the life quality of residents;
(3) the utility model discloses according to results such as computer simulation, compromise gas curtain formula lampblack absorber gas curtain and flow out parameter design process and according to the accommodation process of real-time operation exhaust volume, made detailed research to range hood gas curtain parameter, and proposed the control logic based on the adjustable air curtain of volume of airing exhaust, whether air curtain "transfers under different volumes of airing exhaust, how to transfer" the problem, the cooking oil smoke mechanism is cooked in the air curtain control of having elucidated, the control direction of range hood air curtain parameter of effluenting is provided. And simultaneously, the utility model discloses a computer simulation comes the supplementary control condition who explains the air curtain parameter of effluenting, for example: under the condition that the air discharge amount is 600m3/h, the outflow speed of the air curtain of 2-2.5m/s plays a positive role in controlling kitchen pollutants, the air curtain can effectively prevent cooking oil fume in a kitchen from overflowing, and along with the increase of the outflow speed of the air curtain, the air curtain can not prevent the pollutants from escaping, even accelerate the pollutants to escape, so that the kitchen environment is worse.
In addition, the existing range hood on the market mostly has several different gears, such as low, medium and high gears, corresponding to different air discharge volumes. Under the condition, the air curtain outflow parameters of the range hood can be linked with the gear signals, namely when the range hood is in a low gear, the range hood corresponds to a low-gear exhaust air volume, and at the moment, according to the selection of the outflow parameters of the range hood carried out in advance, the outflow speed and the outflow angle of an air curtain are correspondingly input to enable the outflow speed and the outflow angle to correspond to each other. Similarly, the medium-grade air discharge quantity and the high-grade air discharge quantity correspond to an air curtain outflow parameter correspondingly. The air curtain is adjusted under the limited air exhaust working condition, and the effect can be achieved to a certain degree.
It should be noted that, as is obvious to a person skilled in the art, the invention is not limited to details of the above-described exemplary embodiments, but can be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
The utility model discloses a concrete example is applied to explain the principle and the implementation mode of the utility model, and the explanation of the above example is only used to help understand the method and the core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.
Claims (8)
1. The utility model provides an adjustable air curtain device of range hood based on volume of airing exhaust of operation which characterized in that: the adjustable air curtain device comprises an air quantity sensor for monitoring the exhaust air quantity of the range hood and an adjustable air curtain device installed on the outer side of a chassis of the range hood, wherein a fan and guide vanes are integrated in the adjustable air curtain device, the fan is connected with an air curtain fan controller for regulating and controlling the outflow speed of an air curtain, the guide vanes are connected with a guide vane controller for regulating and controlling the outflow angle of the air curtain, and the air curtain fan controller and the guide vane controller are in signal connection with the air quantity sensor.
2. The adjustable air curtain device of the range hood based on the operation exhaust air volume of claim 1, which is characterized in that: the adjustable air curtain device also comprises an air curtain fan box, the fan and the guide vanes are arranged in the air curtain fan box, and the adjustable air curtain device and the chassis of the range hood are separated and sealed by adopting inclined plates.
3. The adjustable air curtain device of the range hood based on the operation exhaust air volume of claim 2, characterized in that: the guide vane is arranged in the air curtain fan box through a guide rotating shaft, and the guide rotating shaft is electrically connected with the guide vane controller.
4. The adjustable air curtain device of the range hood based on the operation exhaust air volume of claim 3, characterized in that: the guide vane is welded on the guide rotating shaft.
5. The adjustable air curtain device of the range hood based on the operation exhaust air volume of claim 2, characterized in that: the fan is supported on the upper part of the guide vane through a bracket.
6. The adjustable air curtain device of the range hood based on the operation exhaust air volume of claim 1, which is characterized in that: the outlet of the fan is connected with the guide vanes through square interfaces.
7. The adjustable air curtain device of the range hood based on the operation exhaust air volume of claim 6, characterized in that: the fan is connected with the square interface bolt.
8. The adjustable air curtain device of the range hood based on the operation exhaust air volume of claim 1, which is characterized in that: the bottom of the adjustable air curtain device is provided with an air curtain slit outlet, and the fan and the guide vanes are arranged above the air curtain slit outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020508278.0U CN211854129U (en) | 2020-04-09 | 2020-04-09 | Adjustable air curtain device of range hood based on volume of airing exhaust of operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020508278.0U CN211854129U (en) | 2020-04-09 | 2020-04-09 | Adjustable air curtain device of range hood based on volume of airing exhaust of operation |
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| Publication Number | Publication Date |
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| CN211854129U true CN211854129U (en) | 2020-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020508278.0U Active CN211854129U (en) | 2020-04-09 | 2020-04-09 | Adjustable air curtain device of range hood based on volume of airing exhaust of operation |
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| Country | Link |
|---|---|
| CN (1) | CN211854129U (en) |
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2020
- 2020-04-09 CN CN202020508278.0U patent/CN211854129U/en active Active
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