CN216868612U - Central range hood system - Google Patents
Central range hood system Download PDFInfo
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- CN216868612U CN216868612U CN202220362543.8U CN202220362543U CN216868612U CN 216868612 U CN216868612 U CN 216868612U CN 202220362543 U CN202220362543 U CN 202220362543U CN 216868612 U CN216868612 U CN 216868612U
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Abstract
The utility model provides a central range hood system, which relates to the technical field of kitchen and bathroom equipment and comprises the following components: host computer and a plurality of terminal, the host computer includes: the terminal comprises a power distribution valve, a range hood and an air speed sensor, and the power distribution valve is internally provided with an air valve controller; the wind speed sensor is used for collecting sensor parameters of the wind speed sensor of the range hood, wherein the sensor parameters comprise: current wind speed in the exhaust duct and the wind direction in the exhaust duct, the wind direction includes: an outer wind direction and an inner wind direction; the wind speed sensor is an omnidirectional wind speed sensor, and the 0-180-degree position line of the wind speed sensor is arranged in the airflow flowing direction of the branch smoke exhaust pipeline in the central range hood system in parallel; the air valve controller sends a first signal to the fan controller when detecting that the wind direction is the internal exhaust wind direction, and the technical problem that the exhaust direction of oil smoke in the smoke exhaust pipeline cannot be determined in the prior art is solved.
Description
Technical Field
The utility model relates to the technical field of kitchen and bathroom equipment, in particular to a central range hood system.
Background
No effective solution has been proposed to the above problems.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention provides a central range hood system to alleviate the technical problem in the prior art that the discharge direction of the oil smoke in the smoke exhaust duct cannot be determined.
In a first aspect, an embodiment of the present invention provides a central range hood system, including: a host and a plurality of terminals, wherein the host comprises: the terminal comprises a power distribution valve, a range hood and an air speed sensor, wherein an air valve controller is arranged in the power distribution valve, and is connected with the fan variable frequency controller, the air speed sensor and an air valve of the range hood; the wind speed sensor is used for collecting sensor parameters of the wind speed sensor of the range hood, wherein the sensor parameters comprise: current wind speed in the exhaust duct and the wind direction in the exhaust duct, the wind direction includes: an outer wind direction and an inner wind direction; the wind speed sensor is an omnidirectional wind speed sensor, wherein a 0-180-degree position line of the wind speed sensor is parallelly arranged in the airflow flowing direction of a branch smoke exhaust pipeline in the central range hood system; the air valve controller is used for sending a first signal to the fan controller under the condition that the detected wind direction is the internal exhaust wind direction, wherein the first signal is used for representing that oil smoke flows backwards in the central range hood system.
Further, the main machine and the power distribution valve communicate wirelessly.
Further, the air valve controller is used for collecting the current load current of the range hood.
And further, the air valve controller is used for generating a control signal and a target signal by utilizing the current load current and the sensor parameter, and sending the control signal to the air valve so as to adjust the angle of the air valve, wherein the target signal is used for representing the working state of the range hood, the working gear of the range hood and the air exhaust state of the range hood.
Further, the fan frequency conversion controller is used for adjusting the working frequency of the fan according to the target signal.
Further, the blast gate controller includes: the wind speed sensor comprises a current detection circuit and a wind speed sensor interface circuit, wherein the wind speed sensor interface circuit is connected with the wind speed sensor.
Further, the current detection circuit is used for detecting the current load current of the range hood; and the wind speed sensor interface circuit is used for acquiring sensor parameters of the wind speed sensor of the range hood, which are acquired by the wind speed sensor.
Further, the air valve controller is configured to control the air valve to open and send a second signal to the fan frequency conversion controller when it is detected that the current load current is not 0 and the wind direction is the outward wind direction, where the second signal is used to indicate that the working state of the fan is an open state.
Further, the air valve controller is configured to control the air valve to be closed and send a third signal to the fan frequency conversion controller when the current load current is detected to be 0, where the third signal is used to represent that the working state of the fan is a closed state.
Further, the air valve controller is configured to determine, as the current operating gear of the range hood, a gear corresponding to a preset current range in which the current load current is located, when it is detected that the current load current is not equal to the historical load current and the current wind speed is not equal to the historical wind speed.
In an embodiment of the present invention, a central range hood system includes: host computer and a plurality of terminal, the host computer includes: the terminal comprises a power distribution valve, a range hood and an air speed sensor, and the power distribution valve is internally provided with an air valve controller; the wind speed sensor is used for collecting sensor parameters of the wind speed sensor of the range hood, wherein the sensor parameters comprise: current wind speed in the exhaust duct and the wind direction in the exhaust duct, the wind direction includes: an outer wind direction and an inner wind direction; the wind speed sensor is an omnidirectional wind speed sensor, and the 0-180-degree position line of the wind speed sensor is arranged in the airflow flowing direction of the branch smoke exhaust pipeline in the central range hood system in parallel; the air valve controller sends a first signal to the fan controller under the condition that the detected wind direction is the internal exhaust wind direction, wherein the first signal is used for representing that the oil smoke flows backwards in the central range hood system. The embodiment of the utility model achieves the purpose of determining the discharge direction of the oil smoke in the smoke exhaust pipeline through the wind speed sensor, further solves the technical problem that the discharge direction of the oil smoke in the smoke exhaust pipeline cannot be determined in the prior art, and achieves the technical effect of accurately identifying whether the oil smoke in the central range hood flows backwards or not.
Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model. The objectives and other advantages of the utility model will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
In order to make the aforementioned and other objects, features and advantages of the present invention 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 diagram of a central extractor 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.
The first embodiment is as follows:
according to an embodiment of the present invention, an embodiment of a central range hood system is provided, fig. 1 is a schematic view of the central range hood system according to the embodiment of the present invention, as shown in fig. 1, the central range hood system includes: a host and a plurality of terminals, wherein the host comprises: the system comprises a fan 10 and a fan variable frequency controller 20, wherein the terminal comprises a power distribution valve 30, a range hood 40 and an air speed sensor 50, and an air valve controller 60 is arranged in the power distribution valve;
the wind speed sensor 50 is used for collecting sensor parameters of the wind speed sensor of the range hood, wherein the sensor parameters comprise: current wind speed in the exhaust duct and the wind direction in the exhaust duct, the wind direction includes: an outer wind direction and an inner wind direction;
the wind speed sensor 50 is an omnidirectional wind speed sensor, wherein a 0-180-degree position line of the wind speed sensor is parallelly arranged in the airflow flowing direction of a branch smoke exhaust pipeline in a central range hood system;
the air valve controller 60 is configured to send a first signal to the fan controller when the wind direction is detected to be the inner exhaust direction, where the first signal is used to indicate that there is oil smoke flowing backwards in the central extractor hood system.
In an embodiment of the present invention, a central range hood system includes: host computer and a plurality of terminal, the host computer includes: the terminal comprises a power distribution valve, a range hood and an air speed sensor, and the power distribution valve is internally provided with an air valve controller; the wind speed sensor is used for collecting sensor parameters of the wind speed sensor of the range hood, wherein the sensor parameters comprise: current wind speed in the exhaust duct and the wind direction in the exhaust duct, the wind direction includes: an outer wind direction and an inner wind direction; the wind speed sensor is an omnidirectional wind speed sensor, and the 0-180-degree position line of the wind speed sensor is arranged in the airflow flowing direction of the branch smoke exhaust pipeline in the central range hood system in parallel; the air valve controller sends a first signal to the fan controller when detecting that the wind direction is an internal exhaust wind direction, wherein the first signal is used for representing that oil smoke flows backwards in the central range hood system. The embodiment of the utility model achieves the purpose of determining the discharge direction of the oil smoke in the smoke exhaust pipeline through the wind speed sensor, further solves the technical problem that the discharge direction of the oil smoke in the smoke exhaust pipeline cannot be determined in the prior art, and achieves the technical effect of accurately identifying whether the oil smoke in the central range hood flows backwards or not.
In the prior art, the range hood collects the wind speed in the range hood through a common wind speed sensor, namely a cross wind sensor, the cross wind sensor is of two types, namely an impeller type and a hot wire type, and cannot measure the wind speed in all directions.
Install the omnidirectional wind speed sensor in the branch pipeline of discharging fume in this application, can discern that the oil smoke is outer arranging or interior row to whether discernment oil smoke has the backward flow.
The main machine and the power distribution valve communicate wirelessly.
In the embodiment of the utility model, the air valve controller is used for collecting the current load current of the range hood.
The air valve controller is used for generating a control signal and a target signal by utilizing the current load current and the sensor parameters, sending the control signal to the air valve to adjust the angle of the air valve, wherein the target signal is used for representing the working state of the range hood, the working gear of the range hood and the air exhaust state of the range hood.
And the fan frequency conversion controller is used for adjusting the working frequency of the fan according to the target signal.
The blast gate controller includes: the wind speed sensor comprises a current detection circuit and a wind speed sensor interface circuit, wherein the wind speed sensor interface circuit is connected with the wind speed sensor.
The current detection circuit is used for detecting the current load current of the range hood;
and the wind speed sensor interface circuit is used for acquiring sensor parameters acquired by the wind speed sensor.
The air valve controller is used for controlling the air valve to be opened and sending a second signal to the fan frequency conversion controller under the condition that the current load current is detected to be not 0 and the wind direction is the outward wind direction, wherein the second signal is used for representing that the working state of the fan is an opening state.
The air valve controller is used for controlling the air valve to be closed and sending a third signal to the fan frequency conversion controller when the current load current is detected to be 0, and the third signal is used for representing that the working state of the fan is a closed state.
And the air valve controller is used for determining a gear corresponding to a preset current range in which the current load current is located as a current working gear of the range hood under the condition that the current load current is not equal to the historical load current and the current wind speed is not equal to the historical wind speed.
The operation of the central range hood system will be described below.
Acquiring the current load current of the range hood and sensor parameters of an air speed sensor of the range hood, wherein the sensor parameters comprise: the current wind speed in the exhaust duct and the wind direction in the exhaust duct.
Then, based on the current load current and the sensor parameters, determining working parameters of the range hood, and adjusting the angle of an air valve of the range hood based on the working parameters, wherein the working parameters comprise at least one of the following parameters: working state, working gear and air exhaust state.
And finally, sending the working parameters to a host of the central range hood so that the host can determine the number of target range hoods based on the working parameters, and adjusting the working frequency of the host according to the number of the target range hoods, wherein the target range hoods are range hoods of which the working state is the starting state.
Specifically, in the embodiment of the utility model, if the load current is detected, the signals of the wind speed sensor are further judged, whether an external directional wind speed signal exists or not is judged, if the external directional wind speed signal exists, the range hood is judged to be opened, the air valve is controlled to be opened, and the starting state is reported to the host; if only load current is detected, the range hood is judged not to be opened, and the air valve is kept closed.
And adjusting the frequency of the host according to the starting number of the range hood (a table look-up mode can be used).
And if the load current and the wind speed ratio of the outer directional pipeline are detected to be increased for the previous time and the load current is in the current range of the gear, judging that the gear of the range hood is switched to a strong gear (namely, a second working gear), and controlling the angle of the air valve to be increased.
If the load current and the pipeline wind speed ratio are detected to be reduced for the previous time and the load current is in the current range of the gear, the gear of the range hood is judged to be switched to a weak gear (namely, a third working gear), and the angle of the air valve is controlled to be reduced.
If the load current is detected to be zero, the range hood is judged to be shut down, the air valve is controlled to be closed, and the shut-down state is reported to the host.
Specifically, if the current load current is less than or equal to the current threshold corresponding to the first working gear and the working state identifier of the range hood is the start identifier, it is determined that the working state of the range hood is the first working state, where the first working state is used to represent that the working state of the range hood is the stop state.
And if the current load current is greater than a current threshold corresponding to the first working gear, the wind direction is an outer air exhaust direction, and the working identifier of the range hood is a shutdown identifier, determining that the working state of the range hood is a second working state and the air exhaust state is a forward exhaust state, wherein the second working state is used for representing that the working state of the range hood is a startup state.
And if the current load current is greater than the current threshold corresponding to the first working gear and the wind direction is an internal exhaust wind direction, determining that the working state of the range hood is a third working state and the exhaust state is a reverse flow state, wherein the third working state is used for representing that the working state of the range hood is a starting state.
And if the current load current is 0, determining that the working state of the range hood is a fourth working state, wherein the fourth working state is used for representing that the working state of the range hood is a shutdown state.
The working state of each range hood can be accurately judged by the method.
If the current load current is smaller than the historical load current and the current wind speed is smaller than the historical wind speed, determining the working gear as a third working gear;
if the current load current is greater than the historical load current and the current wind speed is greater than the historical wind speed, determining the working gear as a second working gear;
and after the working state of the range hood is determined to be the third working state and the air exhaust state is determined to be the reverse flow state, determining the working gear as a second working gear.
The current working gear of the range hood can be accurately determined by comparing the current load current with the historical load current and comparing the current wind speed with the historical wind speed.
It should be noted that after obtaining the current wind speed and the current load current, the angle of the damper can be adjusted as follows.
Calculating a first difference between the current load current and the historical load current, and calculating a second difference between the current wind speed and the historical wind speed;
if the first difference is larger than the current threshold corresponding to the second working gear and the second difference is larger than the wind speed threshold corresponding to the second working gear, increasing the angle of the air valve based on the first difference and the second difference;
if the first difference is smaller than or equal to a current threshold corresponding to a third working gear and the third difference is smaller than or equal to a wind speed threshold corresponding to the third working gear, determining the current load current as historical load current and determining the current wind speed as historical wind speed, wherein the current threshold corresponding to the third working gear is smaller than the current threshold corresponding to the second working gear, and the wind speed threshold corresponding to the third working gear is smaller than the wind speed threshold corresponding to the second working gear;
and if the first difference is smaller than or equal to the current threshold corresponding to the second working gear and larger than the current threshold corresponding to the third working gear, and the second difference is smaller than or equal to the wind speed threshold corresponding to the second working gear and larger than the wind speed threshold corresponding to the third working gear, reducing the angle of the air valve.
In addition, after the operating state of the range hood is determined to be the second operating state and the exhaust state is determined to be the forward exhaust state, the current load current is determined to be the historical load current, and the current wind speed is determined to be the historical wind speed.
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 meanings of the above terms in the present invention can be understood in specific cases to 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.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units is only one logical division, and there may be other divisions when actually implemented, and for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of devices or units through some communication interfaces, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that the following descriptions are only illustrative and not restrictive, and that the scope of the present invention is not limited to the above embodiments: 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. A central range hood system, comprising: a host and a plurality of terminals, wherein the host comprises: the terminal comprises a power distribution valve, a range hood and an air speed sensor, wherein an air valve controller is arranged in the power distribution valve, and the air valve controller is connected with the fan variable frequency controller, the air speed sensor and an air valve of the range hood;
the wind speed sensor is used for collecting sensor parameters of the wind speed sensor of the range hood, wherein the sensor parameters comprise: current wind speed in the exhaust duct and the wind direction in the exhaust duct, the wind direction includes: an outer wind direction and an inner wind direction;
the wind speed sensor is an omnidirectional wind speed sensor, wherein a 0-180-degree position line of the wind speed sensor is parallelly arranged in the airflow flowing direction of a branch smoke exhaust pipeline in the central range hood system;
the air valve controller is used for sending a first signal to the fan controller under the condition that the detected wind direction is the internal exhaust wind direction, wherein the first signal is used for representing that oil smoke flows backwards in the central range hood system.
2. The system of claim 1,
the main machine and the power distribution valve are communicated in a wireless mode.
3. The system of claim 1,
and the air valve controller is used for acquiring the current load current of the range hood.
4. The system of claim 3,
the air valve controller is used for generating a control signal and a target signal by utilizing the current load current and the sensor parameters, sending the control signal to the air valve to adjust the angle of the air valve, wherein the target signal is used for representing the working state of the range hood, the working gear of the range hood and the air exhaust state of the range hood.
5. The system of claim 4,
and the fan frequency conversion controller is used for adjusting the working frequency of the fan according to the target signal.
6. The system of claim 4, wherein the damper controller comprises: the wind speed sensor comprises a current detection circuit and a wind speed sensor interface circuit, wherein the wind speed sensor interface circuit is connected with the wind speed sensor.
7. The system of claim 6,
the current detection circuit is used for detecting the current load current of the range hood;
and the wind speed sensor interface circuit is used for acquiring sensor parameters acquired by the wind speed sensor.
8. The system of claim 7,
the air valve controller is used for controlling the air valve to be opened and sending a second signal to the fan frequency conversion controller under the condition that the current load current is detected to be not 0 and the wind direction is the outward wind direction, wherein the second signal is used for representing that the working state of the fan is an opening state.
9. The system of claim 7,
and the air valve controller is used for controlling the air valve to be closed and sending a third signal to the fan frequency conversion controller under the condition that the current load current is detected to be 0, wherein the third signal is used for representing that the working state of the fan is a closed state.
10. The system of claim 7,
and the air valve controller is used for determining a gear corresponding to a preset current range in which the current load current is located as a current working gear of the range hood under the condition that the current load current is not equal to the historical load current and the current wind speed is not equal to the historical wind speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220362543.8U CN216868612U (en) | 2022-02-22 | 2022-02-22 | Central range hood system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220362543.8U CN216868612U (en) | 2022-02-22 | 2022-02-22 | Central range hood system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216868612U true CN216868612U (en) | 2022-07-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220362543.8U Active CN216868612U (en) | 2022-02-22 | 2022-02-22 | Central range hood system |
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| Country | Link |
|---|---|
| CN (1) | CN216868612U (en) |
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2022
- 2022-02-22 CN CN202220362543.8U patent/CN216868612U/en active Active
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