CN216769523U - Fume exhaust fan - Google Patents
Fume exhaust fan Download PDFInfo
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- CN216769523U CN216769523U CN202122476548.1U CN202122476548U CN216769523U CN 216769523 U CN216769523 U CN 216769523U CN 202122476548 U CN202122476548 U CN 202122476548U CN 216769523 U CN216769523 U CN 216769523U
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Abstract
The utility model discloses a range hood which is characterized by comprising an operating system, a control system and a load system which are arranged on a range hood main body, wherein the load system mainly comprises a fan main motor, a load device and a noise detection device; the operating system is respectively connected with the main motor of the fan and the load device through the control system, and the noise detection device is arranged in an air duct system of the cigarette machine main body; the operating system is used for a part for interaction between the operation of the equipment end and a user, and the user controls the whole machine to operate through the operating system; the control system comprises a control center and a power supply circuit, and the control center controls the operation of the load device according to the program setting. The utility model can ensure that the oil stain of the wind wheel can be cleaned in time, ensure the stable operation of the wind wheel and avoid the problems that the oil stain is attached more after the wind wheel is used for a long time, the suction force of the whole machine is reduced and the smoking effect is poor during the operation.
Description
Technical Field
The utility model relates to the technical field of range hoods, in particular to a range hood.
Background
The cleaning control method of the prior art or the patent smoke machine mainly comprises the following steps: in the prior patent CN113108348A, a turbidity sensor is adopted to detect the turbidity of oil and water collected in a smoke machine and the accumulated running time of a motor is combined for judgment; the patent CN112283775A judges by collecting the turbidity parameter of the oil stain in the inner cavity and combining the rotating speed value of the fan; the patent CN110887080A obtains the accumulated running time of the motor by collecting the concentration of the oil smoke and the rotating speed of the motor to judge. Other patents determine the air flow rate by detecting the air flow rate of the impeller; or the rotation speed of the motor is independently judged; or by the motor alone to accumulate the run time determination. The oil stain degree inside the range hood is judged through the detected data, so that whether cleaning reminding or starting a cleaning program is carried out or not is confirmed. The cleaning control method of the prior art or the patented cigarette machine has the following defects: the air volume value when the impeller runs is influenced by the pressure of the common flue, the judgment is only carried out through the air volume value, the pressure of the common flue is large in the cooking peak period, and the judgment of the air volume value is inaccurate. Through the judgment of the rotating speed of the motor, a control system needs to collect the current value of the motor in the operation process, and the circuit design needs to have corresponding current sampling, comparison and amplification circuits and the like, so that the circuit design is complicated. And when oil stains are attached to the wind wheel, the difference of current change in the operation process is not obvious compared with that of the motor, and the rotating speed of the motor is also influenced by the wind pressure of the air inlet/outlet, so that the judgment is inaccurate. By adopting the method of the turbidity sensor, the adhesion force of oil stains in a range hood is large, and the difference of oil water turbidity flowing to the collecting box is small. The effective operation time of the motor is judged by detecting the concentration of the oil smoke and combining the rotating speed of the motor, the judgment basis is the accumulated operation time of the motor, and the judgment is inaccurate only through the accumulated operation time of the motor.
Disclosure of Invention
The utility model aims to solve the defects of the prior art, and provides the range hood which is simple in structure and can solve the problems that the suction force of a whole machine is reduced and the oil smoke suction effect is poor due to the adhesion of oil stains to a wind wheel in the long-term use process.
The utility model adopts the following technical scheme to realize the purpose: a range hood is characterized by comprising an operating system, a control system and a load system which are arranged on a main body of the range hood.
The load system mainly comprises a fan main motor, a load device and a noise detection device; the operating system is respectively connected with the main fan motor and the load device through the control system, the noise detection device is arranged in an air duct system of the cigarette machine main body, and the noise condition of the air duct system and the accumulated running time of the fan are detected through the noise detection device to serve as conditions for judging the oil stain attachment degree of the wind wheel.
The operating system is used for the part for interaction between the operation of the equipment end and a user, and the user controls the whole machine to operate through the operating system.
The control system comprises a control center and a power supply circuit, wherein the control center controls the operation of the load device according to program setting, and the power supply circuit is used for supplying power to the control center, the load device and the noise detection device.
After the whole machine system is powered on, the noise detection device detects an ambient noise signal of the air duct system in real time and sends the ambient noise signal to the control system, and the control system records an air duct ambient noise value in a state that the motor is not running as m 0; after the fan is started to operate, the control system obtains the accumulated operation time of the fan, the air duct environment noise value is recorded as m1, and the control system sets delta m0= m1-m0 as the noise preset value of the air duct system. The control system is preset with an accumulated running time threshold T0 of the fan, detects the accumulated running time of the fan in real time and records the accumulated running time as T0 when the control system detects that the accumulated running time T0 of the fan is more than or equal to T0, records the noise value M1 of the air duct system at the moment, and records the noise value delta M1= M1-M0; if the delta M1 is not less than the delta M0, it is determined that the fan impeller is adhered with more oil stains, so that the noise value of the air duct system is larger, and the wind wheel needs to be cleaned.
As a further explanation of the above scheme, the noise detection device is installed in the wind wheel pot shell of the fan and can be in communication connection with the control system in a wired or wireless manner.
The noise detection device can process the sound after collecting the sound, and identifies and judges the amplitude, frequency, loudness and tone of the sound; the noise detection device comprises a sound detection sensor or a sound collection and identification module.
Further, the noise detection device is installed at the lower edge of the wind wheel pot shell.
Further, the noise detection device is fixed at the lower end of the wind wheel pot shell through a mounting bracket.
Furthermore, a sound detection sensor or a sound collection and identification module is arranged in an air inlet passage of an air duct of the wind wheel pot shell; the surface of the sound detection sensor or the sound collection and identification module is provided with an oil-proof and waterproof treatment layer.
Furthermore, the control system acquires the accumulated operation time of the fan as a recording time point, and can be adjusted according to the actual situation.
Further, after the cigarette machine is shut down, the system starts a cleaning program to run or sends a cleaning prompt to indicate a user to clean, when the cleaning program is started or the user cancels the cleaning prompt, the accumulated running time t0 of the fan is cleared, and the control system accumulates the running time of the fan again; and starting a secondary cleaning control program or cleaning reminding when the control conditions are met again, and the like.
Further, the noise value m0 or m1 is representative of one or more factors, including one of amplitude, frequency, loudness, or pitch.
The utility model adopts the technical scheme to achieve the beneficial effects.
According to the utility model, the noise detection device is arranged in the air duct system, and the noise detection of the air duct system is combined with the judgment of the accumulated running time of the fan, so that the oil stain adhesion degree of the fan impeller can be accurately detected, a cleaning program is started in time or a user is reminded to clean, the oil stain on the wind wheel can be cleaned in time, the stable running of the wind wheel is ensured, and the problems that the oil stain is adhered to more oil stains after the wind wheel is used for a long time, the suction force of the whole machine is reduced during running and the smoking effect is poor are avoided.
Drawings
Fig. 1 is a control block diagram of the whole system of the present invention.
FIG. 2 is a flow chart of the determination condition of the overall machine cleaning control method according to the present invention.
Fig. 3 is a schematic structural diagram of the present invention.
Description of reference numerals: 1. the wind wheel boiler comprises an operating system 2, a control system 3, a load system 3-1, a fan main motor 3-2, a load device 3-3, a noise detection device 4 and a wind wheel boiler shell.
Detailed Description
In the description of the present invention, it should be noted that, for the terms of orientation, such as "central", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., it indicates that the orientation and positional relationship shown in the drawings are based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated without limiting the specific scope of protection of the present invention.
Furthermore, if the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. Thus, a definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the feature, and in the description of the utility model, "at least" means one or more unless specifically defined otherwise.
In the present invention, unless otherwise explicitly defined or limited, the terms "assembled", "connected" and "connected" should be construed broadly and include, for example, fixed connections, detachable connections or integral connections; or may be a mechanical connection; the two elements can be directly connected or connected through an intermediate medium, and the two elements can be communicated with each other. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.
In the present application, unless otherwise specified or limited, "above" or "below" a first feature may include the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other through another feature therebetween. Also, the first feature being "above," "below," and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply an elevation which indicates a level of the first feature being higher than an elevation of the second feature. The first feature being "above", "below" and "beneath" the second feature includes the first feature being directly below or obliquely below the second feature, or merely means that the first feature is at a lower level than the second feature.
The following describes the embodiments of the present invention with reference to the drawings of the specification, so that the technical solutions and the advantages thereof are more clear and clear. The embodiments described below are exemplary and are intended to be illustrative of the utility model, but are not to be construed as limiting the utility model.
As shown in fig. 1-3, the present invention is a range hood, which adopts a mode of arranging a noise detection device in an air duct system, and can automatically start a cleaning program to run or send a cleaning prompt when the whole machine is shut down after the conditions are met by detecting the noise condition of the air duct system and the accumulated running time of a fan as the conditions for judging the oil stain attachment degree of a wind wheel.
The whole machine control system of the range hood mainly comprises an operating system 1, a control system 2 and a load system 3. Operating the system: and the user controls the whole machine to operate and work through the operating system. The control system comprises: the system comprises a control center and a power supply circuit. The control center controls the operation of the load device according to the program setting; the power supply circuit is used for supplying power to the control center and the load device. A load system: mainly comprises a fan main motor 3-1, other load devices 3-2 and a noise detection device 3-3. The main motor of the fan is a direct current variable frequency motor or an alternating current motor, and other loads comprise a switching motor and an illuminating lamp.
In the embodiment, the noise detection device is arranged in the wind wheel pot shell 4 of the fan and can be in communication connection with the whole controller system in a wired or wireless mode; the noise detection device can process the sound after collecting the sound, and identify and judge the amplitude, frequency, loudness and tone of the sound. In this embodiment, the noise detection device includes a sound detection sensor or a sound collection and identification module, and the noise detection device is installed at the lower edge of the wind wheel pot shell. Furthermore, the noise detection device is fixed at the lower end of the wind wheel pot shell through a mounting bracket and is positioned in an air inlet passage of an air duct of the wind wheel pot shell; and the surface of the sound detection sensor or the sound collection and identification module is subjected to oil stain prevention and waterproof treatment. The noise value m0 or m1 may be a manifestation of one or more factors (factors: amplitude, frequency, loudness, or pitch). M0, M1 and M1 are real-time noise values of the fan in a certain running state and are updated and changed.
After the whole machine system is electrified, the noise detection device detects an ambient noise signal of the air duct system in real time and sends the ambient noise signal to the control system, and the control system records the value of the ambient noise of the air duct in the state that the motor is not running as m 0; after the fan is started to operate, the control system obtains the air duct environment noise value 5min before the fan is operated accumulatively (the recording time point of the 5min can be adjusted according to the actual condition) and records the air duct environment noise value as m1, and the control system sets the delta m0= m1-m0 as the noise preset value of the air duct system. The control system is preset with an accumulated running time threshold T0 of the fan, detects the accumulated running time of the fan in real time and records the accumulated running time as T0 when the control system detects that the accumulated running time T0 is larger than or equal to T0, records the noise value M1 of the air duct system at the moment, and records the noise value delta M1= M1-M0. If the delta M1 is not less than delta M0, it is determined that oil stains are adhered to the fan impeller more, so that the noise value of the air duct system is large, and the wind wheel needs to be cleaned. After the conditions are met, when the cigarette machine is shut down during the operation, the system starts a cleaning program to run or sends a cleaning prompt to instruct a user to clean. And when the cleaning program is started or the user cancels the cleaning prompt, the accumulated running time t0 of the fan is cleared, and the control system accumulates the running time of the fan again. And starting a secondary cleaning control program or cleaning reminding when the control conditions are met again, and the like.
Compared with the prior art, the method has the advantages that the noise detection of the air duct system is combined with the judgment of the accumulated running time of the fan, so that the oil stain adhesion degree of the fan impeller can be accurately detected, a cleaning program is started in time or a user is reminded to clean the fan impeller, the oil stain on the wind wheel can be cleaned in time, the stable running of the wind wheel is ensured, and the problems that the oil stain is adhered to more oil stains after the wind wheel is used for a long time, the suction force of the whole machine is reduced during the running, and the smoking effect is poor are avoided.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the inventive concept of the present invention, and these changes and modifications are all within the scope of the present invention.
Claims (6)
1. A range hood is characterized by comprising an operating system, a control system and a load system which are arranged on a main body of the range hood,
the load system mainly comprises a fan main motor, a load device and a noise detection device; the operating system is respectively connected with the main motor of the fan and the load device through the control system, the noise detection device is arranged in an air duct system of the cigarette machine main body, and the noise condition of the air duct system and the accumulated running time of the fan are detected through the noise detection device to serve as conditions for judging the oil stain attachment degree of the wind wheel; the noise detection device comprises a sound detection sensor or a sound acquisition and identification module;
the operating system is used for a part for interaction between the operation of the equipment end and a user, and the user controls the whole machine to operate and work through the operating system;
the control system comprises a control center and a power supply circuit, wherein the control center controls the operation of the load device, and the power supply circuit is used for supplying power to the control center, the load device and the noise detection device.
2. The range hood of claim 1, wherein the noise detection device is mounted to a lower edge of the wind turbine shell.
3. The range hood of claim 1, wherein the noise detection device is secured to the lower end of the wind turbine shell by a mounting bracket.
4. The range hood of claim 1, wherein the sound detection sensor or the sound collection and identification module is installed in an air inlet passage of an air duct of the wind wheel pot shell.
5. The range hood of claim 1, wherein the surface of the sound detection sensor or the sound collection and recognition module has an oil-resistant and water-resistant layer.
6. The range hood of claim 1, wherein the noise detection device is in communication with the control system via a wired or wireless connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122476548.1U CN216769523U (en) | 2021-10-14 | 2021-10-14 | Fume exhaust fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122476548.1U CN216769523U (en) | 2021-10-14 | 2021-10-14 | Fume exhaust fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216769523U true CN216769523U (en) | 2022-06-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122476548.1U Active CN216769523U (en) | 2021-10-14 | 2021-10-14 | Fume exhaust fan |
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| Country | Link |
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| CN (1) | CN216769523U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114060882A (en) * | 2021-10-14 | 2022-02-18 | 广东万家乐燃气具有限公司 | Range hood cleaning control method and range hood |
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2021
- 2021-10-14 CN CN202122476548.1U patent/CN216769523U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114060882A (en) * | 2021-10-14 | 2022-02-18 | 广东万家乐燃气具有限公司 | Range hood cleaning control method and range hood |
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Effective date of registration: 20230426 Address after: 528399 No. 9, Shunyuan South Road, Wusha community, Daliang street, Shunde District, Foshan City, Guangdong Province Patentee after: GUANGDONG MACRO GAS APPLIANCE Co.,Ltd. Patentee after: MACRO THERMAL ENERGY TECHNOLOGY Co.,Ltd. Address before: 528333 No. 9, Shunyuan South Road, Wusha community, Daliang street, Shunde District, Foshan City, Guangdong Province (residence declaration) Patentee before: GUANGDONG MACRO GAS APPLIANCE Co.,Ltd. |