CN114370661A - Air valve control device and range hood system - Google Patents
Air valve control device and range hood system Download PDFInfo
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- CN114370661A CN114370661A CN202210160527.5A CN202210160527A CN114370661A CN 114370661 A CN114370661 A CN 114370661A CN 202210160527 A CN202210160527 A CN 202210160527A CN 114370661 A CN114370661 A CN 114370661A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
- F24C15/2021—Arrangement or mounting of control or safety systems
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Abstract
The invention provides an air valve control device and a range hood system, which comprise: the air valve comprises an air valve main body, an air valve controller, a temperature sensor module and an air pipe; the temperature sensor module comprises an air pipe temperature sensor and an environment temperature sensor; the air pipe temperature sensor is arranged on the inner side of the air valve main body, the environment temperature sensor is arranged on the outer side of the air valve main body, and the air pipe temperature sensor is used for collecting the air pipe temperature in the air pipe and sending the air pipe temperature to the air valve controller; the environment temperature sensor is used for collecting the environment temperature outside the air duct and sending the environment temperature to the air valve controller; the air valve controller is used for sending an opening and closing instruction to the air valve main body based on the air pipe temperature and the environment temperature; the blast gate main part is used for opening or closing based on the opening and closing instruction. The mode can accurately identify whether the range hood exhausts air in the air pipe according to the temperature, prevents the oil smoke in the public flue from flowing back into a kitchen, and is low in cost and high in reliability.
Description
Technical Field
The invention relates to the technical field of kitchen appliances, in particular to an air valve control device and a range hood system.
Background
Along with the increasing of high-rise houses in modern society, the phenomenon that oil smoke in a public flue flows back to a kitchen sometimes happens, the oil smoke flows back is mostly caused by poor quality sealing performance of a common air valve assembled in the flue, at present, part of users are also provided with electric air valves, and the sealing effect is better so as to prevent the oil smoke from flowing back.
The electric air valve is mainly required to sense the current of a load to automatically identify whether the range hood is opened or not, the air valve is opened when the range hood is opened, and the air valve is closed when the range hood is closed; but because the variety of cigarette machine kind in the existing market, for example cigarette machine products such as single cigarette machine, integrated kitchen, the required power of each function is uneven in the cigarette machine, and the electric current that opens like the last lighting lamp of cigarette machine or integrated kitchen product is opened is not the same, so whether the starting that the blast gate is difficult effectively discernment electric current for cigarette machine amount of wind shelves caused to open electronic blast gate, cause the oil smoke of public flue to flow backward into the kitchen, also can have the entering of oil smoke when leading to resident's house not discharging fume, influence the ambient air quality at home.
Disclosure of Invention
In view of this, the present invention aims to provide an air valve control device and a range hood system to accurately identify whether there is range hood exhaust in an air duct, so as to prevent oil smoke in a common flue from flowing back into a kitchen, and the cost is low and the reliability is high.
In a first aspect, an embodiment of the present invention provides an air valve control device, including: the air valve comprises an air valve main body, an air valve controller, a temperature sensor module and an air pipe; the temperature sensor module comprises an air pipe temperature sensor and an environment temperature sensor; the air pipe temperature sensor is arranged on the inner side of the air valve main body, the environment temperature sensor is arranged on the outer side of the air valve main body, the air pipe and the range hood are sequentially connected, and the air pipe temperature sensor and the environment temperature sensor are both in communication connection with the air valve controller; the air pipe temperature sensor is used for collecting the air pipe temperature in the air pipe and sending the air pipe temperature to the air valve controller; the environment temperature sensor is used for collecting the environment temperature outside the air duct and sending the environment temperature to the air valve controller; the air valve controller is used for sending an opening and closing instruction to the air valve main body based on the air pipe temperature and the environment temperature; the blast gate main part is used for opening or closing based on the opening and closing instruction.
In a preferred embodiment of the present invention, the air valve body includes a blade; the blades are used for sealing the air pipe.
In a preferred embodiment of the present invention, the temperature sensor module is fixed to the damper main body.
In a preferred embodiment of the present invention, the air duct temperature sensor includes a self-heating thermistor.
In a preferred embodiment of the present invention, the ambient temperature sensor includes a thermistor.
In a preferred embodiment of the present invention, the air valve controller is configured to calculate a temperature difference between the air duct temperature and the ambient temperature, and send an opening/closing command to the air valve main body based on the temperature difference.
In a preferred embodiment of the present invention, the temperature difference between the duct temperature and the ambient temperature is calculated by the following equation: Δ T ═ T tube-T ring; wherein, the delta T is the temperature difference, the T pipe is the air pipe temperature, and the T ring is the environment temperature; the air valve controller is used for continuously monitoring the numerical value of the temperature difference, and if the fluctuation of the temperature difference in the preset duration accords with the preset fluctuation threshold value, the temperature difference is used as the reference temperature difference.
In a preferred embodiment of the present invention, if the air valve controller detects that the temperature difference decrease exceeds a preset first threshold, the air valve controller sends an opening/closing command to the air valve main body to control the air valve main body to open.
In the preferred embodiment of the present invention, if the damper body is opened; and if the air valve controller detects that the temperature difference accords with a preset second fluctuation range, the air valve controller sends an opening and closing instruction to the air valve main body to control the air valve main body to be closed.
In a second aspect, an embodiment of the present invention further provides a range hood system, including: the range hood, the common flue and the air valve control device are sequentially connected.
The embodiment of the invention has the following beneficial effects:
according to the air valve control device and the range hood system provided by the embodiment of the invention, the air pipe temperature sensor is used for collecting the air pipe temperature in the air pipe, the environment temperature sensor is used for collecting the environment temperature outside the air pipe, and the air valve controller is used for controlling the opening or closing of the air valve main body based on the air pipe temperature and the environment temperature. The mode can accurately identify whether the range hood exhausts air in the air pipe according to the temperature, prevents the oil smoke in the public flue from flowing back into a kitchen, and is low in cost and high in reliability.
Additional features and advantages of the disclosure will be set forth in the description which follows, or in part may be learned by the practice of the above-described techniques of the disclosure, or may be learned by practice of the disclosure.
In order to make the aforementioned objects, features and advantages of the present disclosure more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural diagram of an air valve control device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another air valve control device according to an embodiment of the present invention;
fig. 3 is a schematic diagram illustrating a temperature acquisition principle of a temperature sensor module according to an embodiment of the present invention;
fig. 4 is a schematic control flow chart of an air valve controller according to an embodiment of the present invention;
fig. 5 is a schematic diagram of an ambient temperature and a duct temperature of a temperature sensor module when the temperature sensor module is started without air volume according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of the ambient temperature and the duct temperature of a temperature sensor module at the time of starting with wind according to an embodiment of the present invention;
FIG. 7 is a logic diagram of an air valve control apparatus according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of a range hood system according to an embodiment of the present invention.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
At present, a plurality of users are provided with electric air valves, and generally, a power plug of a cigarette machine is directly plugged into a load power socket of the electric air valve to enable the electric air valve to sense load current; the existing cigarette machines on the market are seen from products such as common cigarette machines, variable-frequency cigarette machines, integrated cookers and the like; the power of the cigarette machine when the small gear function is started and the power of the integrated stove part product when the function is started are both probably close to the air quantity gear power of the cigarette machine, so that the electric air valve is difficult to accurately identify the air quantity gear power of the cigarette machine, and the air valve is directly opened when the cigarette machine is not started, so that the oil smoke in the public flue flows back into the kitchen.
Therefore, the technical scheme of the electric air valve adopted at present has the following problems: the starting of the air quantity gear can not be effectively identified by the electric air valve, so that the situation of backward flow of oil smoke occurs. In order to solve the problems, sensors such as an air volume detection sensor and an air pressure sensor are added in the design of some existing air valve products, and although the opening condition of the air volume can be identified, the sensors are large in size, high in cost and high in development and application difficulty, and cannot be well assembled on the air valve products to be popularized and applied.
Based on the air valve control device and the range hood system, the air valve is opened only when the air volume of the range hood at home is started and smoke is exhausted, and the air valve cannot be opened by mistake under the condition that other loads are started, so that the condition that the oil smoke in the common flue flows back into a kitchen and the air quality of the home environment is influenced is avoided.
For the convenience of understanding the present embodiment, a detailed description will be given to an air valve control device disclosed in the present embodiment.
The first embodiment is as follows:
an embodiment of the present invention provides an air valve control device, and referring to a schematic structural diagram of an air valve control device shown in fig. 1, the air valve control device includes: the air valve comprises an air valve main body, an air valve controller, a temperature sensor module and an air pipe; the temperature sensor module comprises an air pipe temperature sensor and an environment temperature sensor; the air pipe temperature sensor is installed on the inner side of the air valve main body, the environment temperature sensor is installed on the outer side of the air valve main body, the air pipe and the range hood are sequentially connected, and the air pipe temperature sensor and the environment temperature sensor are both in communication connection with the air valve controller.
The air pipe temperature sensor is used for collecting the air pipe temperature in the air pipe and sending the air pipe temperature to the air valve controller; the environment temperature sensor is used for collecting the environment temperature outside the air duct and sending the environment temperature to the air valve controller; the air valve controller is used for sending an opening and closing instruction to the air valve main body based on the air pipe temperature and the environment temperature; the blast gate main part is used for opening or closing based on the opening and closing instruction.
The air pipe temperature sensor in the embodiment is used for collecting the air pipe temperature in the air pipe, and the environment temperature sensor is used for collecting the environment temperature in the air pipe. Wherein, tuber pipe temperature sensor and ambient temperature sensor all can be thermal element, for example: a thermistor. When the air pipe temperature or the environment temperature changes, the resistance value of the air pipe temperature sensor or the environment temperature sensor changes, and the current and the voltage passing through the air pipe temperature sensor or the environment temperature sensor also change.
In this embodiment, air pipe temperature and ambient temperature when the lampblack absorber is closed can be gathered earlier, and when the lampblack absorber was closed, ambient temperature and air pipe temperature should fluctuate in the minim, and fluctuation range can not be too big at that time. When the lampblack absorber is opened, the oil smoke can enter the air pipe, the air blows to the air pipe temperature sensor to reduce the temperature of the air pipe temperature sensor, and the environment temperature sensor is arranged outside the air pipe, so that the environment temperature cannot change.
Similarly, if the range hood is suddenly closed, the oil smoke stops entering the air pipe at the moment, the air cannot blow the air pipe temperature sensor, and the temperature of the air pipe temperature sensor rises; the ambient temperature sensor is arranged outside the air pipe, so that the ambient temperature cannot change.
Therefore, whether the range hood is opened or closed can be judged according to the change conditions of the air pipe temperature and the environment temperature. The air valve controller can control the air valve main body according to the change conditions of the air pipe temperature and the environment temperature and can send an opening and closing instruction to the air valve main body; the air valve main body is opened or closed based on an opening and closing instruction.
According to the air valve control device provided by the embodiment of the invention, the air pipe temperature sensor is used for collecting the air pipe temperature in the air pipe, the environment temperature sensor is used for collecting the environment temperature outside the air pipe, and the air valve controller is used for controlling the opening or closing of the air valve main body based on the air pipe temperature and the environment temperature. The mode can accurately identify whether the range hood exhausts air in the air pipe according to the temperature, prevents the oil smoke in the public flue from flowing back into a kitchen, and is low in cost and high in reliability.
Example two:
an embodiment of the present invention provides another air valve control device, such as a schematic structural diagram of the air valve control device shown in fig. 2, in which the air valve control device in this embodiment includes: the air valve comprises an air valve body 1, blades 2, an air pipe temperature sensor 3, an ambient temperature sensor 4, a temperature sensor module 5, an air valve controller 6, an air pipe 7 and a range hood 8.
Specifically, the blast gate main part includes blast gate main part shell and middle blade, and the blade mainly used seals the tuber pipe, prevents that public flue's oil smoke from flowing backward.
The temperature sensor module can be fixed in the blast gate main part, and the mounting means and the mounted position of ambient temperature sensor and tuber pipe temperature sensor are the change that can be nimble, not only are limited to install fixed in the blast gate main part, as long as the installation effect is convenient for realize detecting ambient temperature and the temperature that detects in the tuber pipe can.
Referring to fig. 3, a schematic diagram of a temperature acquisition principle of a temperature sensor module is shown, wherein the duct temperature sensor may include a self-heating thermistor. The air pipe temperature sensor can be a low-power self-heating thermistor RT2, is arranged on the inner side of the air valve main body, mainly detects the temperature change condition in the air pipe, identifies whether the air speed flows, the air can take away the heat of the self-heating thermistor, and the air speed can reduce or raise the temperature in the air pipe, thereby identifying the start and stop of the range hood.
The self-heating thermistor RT2 is a thermistor of low resistance value. Because the resistance is small, when a certain voltage is passed, the self-heating thermistor RT2 can generate a relatively large current, so that self-heating is realized, after heating, the self resistance can be greatly changed due to the characteristic of physical heat expansion and cooling, and when the ambient air is relatively stable, the self temperature and the resistance can not be greatly fluctuated after the heating thermistor RT2 heats to a certain heat stable balance; when ambient air flows, certain heat can be taken away, so that the resistance value can be changed; the self-heating has the characteristic that the air flow temperature difference can change greatly and is sensitive, and can be well used for checking the fluctuation state of the ambient temperature.
As shown in fig. 3, the ambient temperature sensor may include a thermistor RT1, which is installed outside the main body of the air valve and mainly used for detecting the ambient temperature, so that the temperature of the duct temperature sensor in the duct has a reference corresponding temperature value. The thermistor RT1 is a thermistor commonly used in home appliances, and senses the temperature state of the surrounding environment, and the thermistor RT1 has small fluctuation of resistance value relative to the ordinary ambient temperature.
In summary, the temperature sensor module can be understood as a combined carrier of the air duct temperature sensor (self-heating thermistor RT2) and the ambient temperature sensor (thermistor RT 1). Here, the types of the thermistor sensors that can be used in the present embodiment are not limited to those using thermistors, thermistor characteristics, or positive and negative temperature coefficients.
The air pipe is mainly used for conveying the oil smoke air volume discharged by the range hood to the public flue for discharging after passing through the air valve. The range hood mainly acts on the purposes of sucking kitchen oil smoke and peculiar smell and exhausting and ventilating through the air valve, so that indoor air is better.
The air valve controller is mainly used for reading temperature values transmitted by an air pipe temperature sensor (a self-heating thermistor RT2) and an environment temperature sensor (a thermistor RT1), performing algorithm analysis on the temperature difference, identifying the condition of opening and closing air volume of the range hood, and simultaneously sending an instruction to control opening and closing of the air valve. For example: the air valve controller is used for calculating the temperature difference between the air pipe temperature and the environment temperature and sending an opening and closing instruction to the air valve main body based on the temperature difference.
The control flow of the air valve controller can be seen in a control flow schematic diagram of the air valve controller shown in fig. 4. First, the change of the ambient temperature and the air duct temperature during the start without air volume is described, and refer to a schematic diagram of the ambient temperature and the air duct temperature during the start without air volume of a temperature sensor module shown in fig. 5.
Specifically, the temperature difference between the duct temperature and the ambient temperature can be calculated by the following equation: Δ T ═ T tube-T ring; wherein, the delta T is the temperature difference, the T pipe is the air pipe temperature, and the T ring is the environment temperature; the air valve controller is used for continuously monitoring the numerical value of the temperature difference, and if the fluctuation of the temperature difference in the preset duration accords with the preset fluctuation threshold value, the temperature difference is used as the reference temperature difference.
As shown in fig. 4 and 5, after the air valve controller is powered on, the air duct temperature sensor (self-heating thermistor RT2) and the ambient temperature sensor (thermistor RT1) start to read temperature values (i.e., air duct temperature and ambient temperature) of the air duct temperature sensor (self-heating thermistor RT2) and the ambient temperature sensor (thermistor RT1) in real time, which are labeled as T-tube and T-ring, and at this time, Δ T gradually changes, as shown in fig. 5.
Continuously monitoring the value of delta T, and when the normal fluctuation of the delta T value for the duration of T meets the range of the fluctuation threshold value, considering that the temperature difference value is relatively stable as delta T ', wherein the temperature of the self-heating thermistor RT2 tends to be stable to reach a thermal equilibrium state and has a relatively constant relation with the current ambient temperature sensor RT1, namely, the delta T' is set as a reference temperature difference;
at this time, if the range hood is started, the temperature of the air duct is reduced, and the Δ T value is also reduced accordingly. And if the air valve controller detects that the descending amplitude of the temperature difference exceeds a preset first threshold value, the air valve controller sends an opening and closing instruction to the air valve main body to control the air valve main body to be opened.
See fig. 6 for a schematic of ambient temperature versus duct temperature at wind volume start-up for a temperature sensor module. When the temperature value of the T pipe is monitored and read to be reduced and exceeds the normal fluctuation threshold range (namely, a first threshold), the continuous monitoring is kept and set as a delta T1 value, the delta T1 value is continuously monitored, namely, the time period from T2 to T3 in fig. 6, when the delta T1 value is gradually reduced, the temperature of the self-heating thermistor RT2 is reduced, the heat is dissipated due to the wind flow, at the moment, the wind valve controller can recognize that the wind flows, the range hood can be accurately judged to be in an open state, and at the moment, the wind valve controller can send an opening and closing instruction to control the wind valve body to be opened.
If the range hood is closed after the air valve main body is opened, the temperature of the air pipe can rise, and the delta T value can also rise accordingly. And if the air valve controller detects that the temperature difference accords with a preset second fluctuation range, the air valve controller sends an opening and closing instruction to the air valve main body to control the air valve main body to be closed.
As shown in fig. 4 and 6, until the normal fluctuation of the Δ T1 value for T time meets the threshold range, the temperature difference value is considered to be relatively stable as Δ T1', i.e., the period from T3 to T4 of fig. 6. And judging that the range hood is always in an open state, and keeping the open state of the air valve unchanged by the air valve controller at the moment.
As shown in fig. 4 and 6, when the monitoring reads that the temperature value of the T-pipe rises and exceeds the normal fluctuation threshold range, the monitoring is kept continuously, the value is set as the value Δ T2, the change of the value Δ T2 is continuously monitored, the time period from T4 to T5 is kept, and when the value Δ T2 gradually increases, it is determined that the range hood is about to be closed, and the air valve is kept open.
As shown in fig. 4 and 6, until the temperature difference value is considered to be relatively stable as Δ T2', that is, the period from T5 to T6 of fig. 6, when the Δ T2 value normally fluctuates for T time in conformity with the threshold range (i.e., the second fluctuation range). And judging that the temperature of the self-heating thermistor rises to the self-heating temperature, identifying that no air flows by the air valve controller, rising the temperature of RT2, accurately judging that the range hood is in a closed state, and sending an instruction to control the air valve to be closed.
In summary, the embodiment of the present invention provides a process monitoring sensor scheme and a software identification algorithm for starting and stopping an air volume with higher reliability and lower cost.
Referring to a logic schematic diagram of an air valve control device shown in fig. 7, the present embodiment mainly includes two temperature sensors, one temperature sensor (i.e., an ambient temperature sensor) monitors a test ambient temperature, and the main function is to act on a corresponding reference temperature value; the other path of self-heating temperature sensor (namely the air pipe temperature sensor) senses the self heat temperature value, the main function is to sense the temperature change value in the smoke pipe, when no air volume is in a static state, the temperature is higher, and a relatively stable corresponding temperature relation value is formed between the temperature and the ambient temperature.
When the air quantity in the smoke exhaust pipe is exhausted, the air can blow the self-heating temperature sensor to dissipate heat, the temperature of the self-heating temperature sensor is lowered, a certain temperature difference is generated, and therefore the starting of the air quantity of the smoke machine can be accurately detected, and the starting of the air valve can be accurately and effectively opened. When the air quantity in the smoke exhaust pipe stops, the temperature of the self-heating sensor rises and recovers, the air valve accurately detects the closing of the air quantity of the smoke machine through the sensor, and the air valve is accurately and effectively closed.
According to the method provided by the embodiment of the invention, the temperature difference between the air pipe temperature and the environment temperature can be compared, and whether the range hood exhaust exists in the pipeline or not is identified through the temperature difference. When the range hood is not opened in a static state, the environmental temperature and the air pipe temperature have a one-to-one corresponding relation; the corresponding relation can be used as a reference value of the air pipe temperature variation when the range hood is opened to run the air quantity. Regardless of the change of the air quantity of the range hood, the running state of the air quantity of the range hood can be accurately identified as long as the air pipe temperature sensor can be cooled to achieve a relative change quantity.
In addition, the embodiment of the invention also provides an integral system hardware architecture, namely an integral hardware system for realizing the method service, which can be matched to realize integral functions.
Example three:
an embodiment of the present invention provides a range hood system, and referring to a schematic structural diagram of a range hood system shown in fig. 8, the range hood system includes: the range hood, the common flue and the air valve control device are sequentially connected.
It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working process of the range hood system described above may refer to the corresponding process in the foregoing embodiment, and is not described herein again.
In addition, in the description of the embodiments of the present invention, 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; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases for those skilled in the art.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that the following embodiments are merely illustrative of the present invention, and not restrictive, and the scope of the present invention is not limited thereto: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. An air valve control device, comprising: the air valve comprises an air valve main body, an air valve controller, a temperature sensor module and an air pipe; the temperature sensor module comprises an air pipe temperature sensor and an environment temperature sensor; the air pipe temperature sensor is arranged on the inner side of the air valve main body, the environment temperature sensor is arranged on the outer side of the air valve main body, the air pipe and the range hood are sequentially connected, and the air pipe temperature sensor and the environment temperature sensor are both in communication connection with the air valve controller;
the air pipe temperature sensor is used for collecting the air pipe temperature in the air pipe and sending the air pipe temperature to the air valve controller;
the environment temperature sensor is used for acquiring the environment temperature outside the air pipe and sending the environment temperature to the air valve controller;
the air valve controller is used for sending an opening and closing instruction to the air valve main body based on the air pipe temperature and the environment temperature;
the air valve main body is used for opening or closing based on the opening and closing instruction.
2. The damper control device according to claim 1, wherein the damper body includes a blade; the blades are used for sealing the air pipe.
3. The damper control device of claim 1, wherein the temperature sensor module is secured to the damper body.
4. The damper control device of claim 1, wherein the duct temperature sensor comprises a self-heating thermistor.
5. The damper control device of claim 1, wherein the ambient temperature sensor comprises a thermistor.
6. The air valve control device according to claim 5, wherein the air valve controller is configured to calculate a temperature difference between the air pipe temperature and the ambient temperature, and send an opening and closing command to the air valve main body based on the temperature difference.
7. The damper control device according to claim 6, wherein the temperature difference between the duct temperature and the ambient temperature is calculated by the following equation: Δ T ═ T tube-T ring; wherein, Δ T is the temperature difference, T pipe is the air pipe temperature, and T ring is the environment temperature;
the air valve controller is used for continuously monitoring the numerical value of the temperature difference, and if the fluctuation of the temperature difference accords with a preset fluctuation threshold value within a preset time length, the temperature difference is used as a reference temperature difference.
8. The blast gate control device according to claim 7, wherein the blast gate controller sends the opening and closing command to the blast gate main body to control the blast gate main body to open if the magnitude of the temperature difference drop is detected to exceed a preset first threshold value.
9. The damper control device according to claim 8, wherein if the damper body is opened; and if the air valve controller detects that the temperature difference accords with a preset second fluctuation range, the air valve controller sends the opening and closing instruction to the air valve main body so as to control the air valve main body to be closed.
10. A range hood system, comprising: a range hood, a common flue and the blast gate control device of any one of claims 1-9, wherein the common flue, the blast pipe of the blast gate control device and the range hood are connected in sequence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210160527.5A CN114370661A (en) | 2022-02-22 | 2022-02-22 | Air valve control device and range hood system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210160527.5A CN114370661A (en) | 2022-02-22 | 2022-02-22 | Air valve control device and range hood system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114370661A true CN114370661A (en) | 2022-04-19 |
Family
ID=81145847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210160527.5A Pending CN114370661A (en) | 2022-02-22 | 2022-02-22 | Air valve control device and range hood system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114370661A (en) |
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2022
- 2022-02-22 CN CN202210160527.5A patent/CN114370661A/en active Pending
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