CN218096144U - A wash warning system and lampblack absorber for lampblack absorber - Google Patents
A wash warning system and lampblack absorber for lampblack absorber Download PDFInfo
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- CN218096144U CN218096144U CN202221892489.4U CN202221892489U CN218096144U CN 218096144 U CN218096144 U CN 218096144U CN 202221892489 U CN202221892489 U CN 202221892489U CN 218096144 U CN218096144 U CN 218096144U
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Abstract
The application discloses a wash warning system and lampblack absorber for lampblack absorber, a wash warning system for lampblack absorber includes: the fan is electrically connected to the alternating current power supply; the rotating speed feedback unit is electrically connected to the fan; and the controller is electrically connected with the rotating speed feedback unit so as to output a cleaning reminding signal when the rotating speed of the fan is determined to be lower than the preset rotating speed. Through the cleaning reminding system for the range hood, a user can be reminded to clean the range hood when the rotating speed is less than the set value in a determined mode, and therefore the accuracy of the cleaning reminding time of the range hood is improved.
Description
Technical Field
The utility model relates to a lampblack absorber washs the field, especially relates to a wash warning system and lampblack absorber for lampblack absorber.
Background
At present, the cleaning reminding of the range hood on the market generally adopts work accumulated timing, and when the accumulated timing is longer than a preset time, a user is reminded to clean;
however, under the condition of the same working time, the performance of the range hood is reduced and the energy consumption is increased corresponding to the heavy oil pollution cooking environment; for the cooking environment with low oil pollution, excessive cleaning can be generated, and the user experience is reduced.
SUMMERY OF THE UTILITY MODEL
This application provides a washing warning system and lampblack absorber for lampblack absorber to the shortcoming of current mode for solve the lampblack absorber that prior art exists and wash and remind unsafe technical problem.
In a first aspect, an embodiment of the present application provides a cleaning reminding system for a range hood, including: the fan is electrically connected with an alternating current power supply; the rotating speed feedback unit is electrically connected to the fan; and the controller is electrically connected with the rotating speed feedback unit and is used for outputting a cleaning reminding signal when the rotating speed of the fan is determined to be lower than the preset rotating speed.
As an alternative embodiment, the fan includes a rotating shaft; the rotating speed feedback unit comprises a magnet and an electrode, the magnet is fixedly connected with the rotating shaft to synchronously rotate with the rotating shaft, and the electrode surrounds the magnet and is fixedly connected with the shell of the fan.
As an optional implementation manner, the cleaning reminding system for the range hood further includes: the conduction unit is electrically connected to the fan and the controller respectively, and the conduction unit and the fan are connected to the alternating current power supply in series; the conduction unit conducts the fan and the alternating current power supply after receiving a conduction signal output by the controller so as to start the fan.
As an optional implementation manner, the cleaning reminding system for the range hood further comprises: the zero-crossing signal detection unit and the controller are connected in series to the alternating current power supply; the controller outputs the conduction signal to the conduction unit when the zero-crossing signal detection unit detects a zero-crossing signal of the alternating current power supply, so that the fan is conducted with the alternating current power supply.
As an optional implementation, the zero-crossing signal detection unit includes: the anode of the first diode is electrically connected with the live wire of the alternating current power supply; the anode of the second diode is electrically connected with the zero line of the alternating current power supply; the first end of the input side is electrically connected to the cathode of the first diode and the cathode of the second diode respectively, the second end of the input side is electrically connected between the anode of the second diode and a zero line of the alternating current power supply, the first end of the output side is electrically connected to a ground wire, and the second end of the output side is connected with the controller; a first power supply; and the first resistor is connected between the first power supply and the second end of the output side of the first optical coupler.
As an optional implementation manner, the conducting unit further includes: the bidirectional thyristor, the first main electrode is connected electrically to the said blower, the second main electrode is connected electrically to the live wire of the said alternating current power supply; a second power supply; a second resistor having one end electrically connected to the second power supply; the base electrode of the first triode is electrically connected with the controller, and the emitting electrode of the first triode is electrically connected with the ground wire; the first end of the input side is electrically connected to the collector electrode of the first triode, the second end of the input side is electrically connected to the other end of the second resistor, the first end of the output side is electrically connected to the gate electrode of the bidirectional triode thyristor, and the second end of the output side is electrically connected to the live wire of the alternating current power supply; the fan is also electrically connected to a zero line of the alternating current power supply.
As an optional implementation manner, the rotation speed feedback unit further includes: a third power supply; one end of the third resistor is electrically connected to the third power supply, and the other end of the third resistor is electrically connected to the controller; and the base electrode of the second triode is electrically connected with the electrode, the collector electrode of the second triode is electrically connected between the controller and the other end of the third resistor, and the emitter electrode of the second triode is electrically connected with the ground wire.
As an optional implementation manner, the rotation speed feedback unit further includes: and one end of the first capacitor is electrically connected to the electrode, and the other end of the first capacitor is electrically connected to the ground wire.
As an optional implementation manner, the rotation speed feedback unit further includes: and one end of the fourth resistor is electrically connected to the electrode, and the other end of the fourth resistor is electrically connected to the ground wire.
In a second aspect, an embodiment of the present application provides a range hood, including: the cleaning reminding system for the range hood as set forth in any one of the first aspects of the embodiments of the present application.
The beneficial technical effects brought by the technical scheme provided by the embodiment of the application comprise:
the controller acquires the rotational speed of fan through rotational speed feedback unit to the rotational speed of the fan that will acquire compares with predetermineeing the rotational speed, if the rotational speed of fan is less than predetermineeing the rotational speed, explains that the greasy dirt attached to on the fan blade is heavier, needs to wash the fan, and the output washs the warning signal, in order to remind the user in time to wash, improves the accuracy that the lampblack absorber washd and reminded the time.
Drawings
The above and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural diagram of a cleaning reminding system for a range hood and the range hood provided in an embodiment of the application;
fig. 2 is a schematic diagram of a frame structure of a cleaning reminding system for a range hood and the range hood provided by the embodiment of the application;
fig. 3 is a schematic diagram of a frame structure of a range hood and a cleaning reminding system for the range hood according to another embodiment of the present application.
Reference numerals and corresponding description:
1: a fan;
2: a rotational speed feedback unit; 21: an electrode; 22: a third power supply; 23: a third resistor; 24: a second triode; 25: a first capacitor; 26: a fourth resistor;
3: a controller;
4: a conducting unit; 41: a bidirectional thyristor; 42: a second power supply; 43: a second resistor; 44: a first triode; 45: a second optocoupler;
5: a zero-crossing signal detection unit; 51: a first diode; 52: a second diode; 53: a first optical coupler; 54: a first power supply; 55: a first resistor; 56: a second capacitance.
Detailed Description
Reference will now be made in detail to the present application, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar parts or parts having the same or similar functions throughout. In addition, if a detailed description of the known art is not necessary for illustrating the features of the present application, it is omitted. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.
It will be understood by those within the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. Further, "connected" as used herein may include wirelessly connected.
As shown in fig. 1 and 2, the embodiment of the application provides a cleaning reminding system for a range hood, which mainly comprises a fan 1, a rotating speed feedback unit 2 and a controller 3. The fan 1 is electrically connected to an alternating current power supply; the rotating speed feedback unit 2 is electrically connected to the fan 1; the controller 3 is electrically connected to the rotational speed feedback unit 2, so as to output a cleaning reminding signal when determining that the rotational speed of the fan 1 is lower than the preset rotational speed.
Through the washing warning system for lampblack absorber that this application embodiment provided, controller 3 acquires fan 1's rotational speed through rotational speed feedback unit 2 to fan 1's rotational speed and the rotational speed comparison of predetermineeing will acquire, if fan 1's rotational speed is less than predetermined rotational speed, explain that the greasy dirt attached to on fan 1 blade is heavier, need rinse fan 1, output washs the warning signal, in order to remind the user in time to wash, improve the accuracy that the lampblack absorber washs the warning time.
Optionally, the controller 3 is a single chip microcomputer.
As an alternative embodiment, the fan 1 comprises a rotating shaft; the rotating speed feedback unit 2 comprises a magnet and an electrode 21, the magnet is fixedly connected to the rotating shaft to rotate synchronously with the rotating shaft, and the electrode 21 surrounds the magnet and is fixedly connected to the casing of the fan 1.
In a possible embodiment, the fan 1 comprises a rotating shaft and blades fixed along the circumference of the rotating shaft, and the rotation of the rotating shaft drives the blades to rotate synchronously so as to realize the air draft action. The magnet fixed on the rotating shaft and the electrode 21 surrounding the magnet generate electric signals through an electromagnetic induction phenomenon, namely, the magnet rotating synchronously with the rotating shaft performs cutting magnetic induction line motion in a magnetic field range provided by the electrode 21, and the rotating speed of the fan 1 can be determined through the generated electric signals.
As an optional implementation manner, as shown in fig. 3, the cleaning reminding system for a range hood further includes a conduction unit 4, the conduction unit 4 is electrically connected to the fan 1 and the controller 3, respectively, and the conduction unit 4 and the fan 1 are connected in series to the ac power supply; the conducting unit 4 conducts the fan 1 and the ac power supply to start the fan 1 after receiving the conducting signal output by the controller 3.
As an optional implementation manner, as shown in fig. 3, the cleaning reminding system for a range hood further includes a zero-crossing signal detecting unit 5, wherein the zero-crossing signal detecting unit 5 and the controller 3 are connected in series to the ac power supply; the controller 3 outputs a conduction signal to the conduction unit 4 when the zero-crossing signal detection unit 5 detects a zero-crossing signal of the ac power supply, so that the fan 1 is conducted with the ac power supply.
In a possible embodiment, a signal input end of the zero-crossing signal detecting unit 5 is electrically connected to the ac power supply, a signal output end of the zero-crossing signal detecting unit 5 is electrically connected to the controller 3, and is configured to detect a zero-crossing signal of the ac power supply, and send information of the detected zero-crossing signal to the controller 3 when the detected zero-crossing signal is detected, the controller 3 outputs a conducting signal to the conducting unit 4 when receiving the information of the detected zero-crossing signal, and the conducting signal enables the conducting unit 4 in the off state to be adjusted to the conducting state, so as to conduct the fan 1 and the ac power supply, and thus start the fan 1; on the contrary, when the zero-crossing signal of the ac power supply is not detected, the controller 3 does not send the on signal, the blower 1 and the ac power supply are in the off state, and the blower 1 cannot be started.
As an alternative embodiment, as shown in fig. 1, the zero-cross signal detection unit 5 includes a first diode 51, a second diode 52, a first optocoupler 53, a first power supply 54, and a first resistor 55. The anode of the first diode 51 is electrically connected to the line of the ac power supply; the anode of the second diode 52 is electrically connected to the zero line of the ac power supply; a first end of an input side of the first optocoupler 53 is electrically connected to a cathode of the first diode 51 and a cathode of the second diode 52 respectively, a second end of the input side of the first optocoupler 53 is electrically connected between an anode of the second diode 52 and a zero line of an alternating current power supply, a first end of an output side of the first optocoupler 53 is electrically connected to a ground wire, and a second end of the output side of the first optocoupler 53 is connected with the controller; and a first resistor 55 connected between the first power source 54 and the second end of the output side of the first optocoupler 53.
In one possible embodiment, a current limiting resistor is further disposed between the first diode 51 and the first optocoupler 53, and the current limiting resistor may be a plurality of sub current limiting resistors connected in series.
In one possible embodiment, the zero-crossing signal detecting unit 5 further includes a second capacitor 56, and one end of the second capacitor 56 is electrically connected between the second end of the output side of the first optocoupler 53 and the controller 3, and the other end is electrically connected to the ground.
Optionally, the second capacitor 56 is a chip multilayer ceramic capacitor.
In one possible embodiment, before the voltage of the ac power source crosses zero, the first optocoupler 53 is turned on, the controller 3 receives the first electrical signal, after the voltage of the ac power source crosses zero, the first optocoupler 53 is turned off, and the controller 3 receives the second electrical signal, optionally, the second electrical signal is smaller than the first electrical signal. The first optocoupler 53 is used for signal isolation and converts the alternating current into a square wave signal.
Optionally, the controller 3 acquires a 50 hz square wave signal.
As an alternative implementation, as shown in fig. 1, the conducting unit 4 further includes a triac 41, a second power source 42, a second resistor 43, a first triode 44, and a second optocoupler 45. A first main electrode of the bidirectional thyristor 41 is electrically connected to the fan 1, and a second main electrode is electrically connected to a live wire of an alternating current power supply; one end of the second resistor 43 is electrically connected to the second power supply 42; the base electrode of the first triode 44 is electrically connected with the controller 3, and the emitting electrode of the first triode 44 is electrically connected with the ground wire; a first end of an input side of the second optocoupler 45 is electrically connected to a collector of the first triode 44, a second end of the input side of the second optocoupler 45 is electrically connected to the other end of the second resistor 43, a first end of an output side of the second optocoupler 45 is electrically connected to a gate of the triac 41, and a second end of an output side of the second optocoupler 45 is electrically connected to a live wire of an alternating current power supply; wherein, the fan 1 is also electrically connected to the zero line of the alternating current power supply.
In one possible embodiment, the conducting unit 4 further includes a fifth resistor, a sixth resistor, a seventh resistor and an eighth resistor. The fifth resistor is arranged between the controller 3 and the base of the first triode 44; one end of the sixth resistor is electrically connected to the ground, and the other end is electrically connected between the fifth resistor and the base of the first triode 44; the seventh resistor is arranged between the second end of the output side of the second optocoupler 45 and the live wire of the alternating current power supply; one end of the eighth resistor is electrically connected to the fan 1, and the other end is electrically connected between the first end of the output side of the second optocoupler 45 and the gate of the triac 41.
The switch-on signal output by the controller 3 may be a high-level electrical signal, the high-level electrical signal is used for switching on the second optical coupler 45, after the second optical coupler 45 is switched on, when the bidirectional thyristor 41 acquires a zero-crossing signal of the ac power supply, due to the characteristics of the bidirectional thyristor 41, the bidirectional thyristor 41 is switched on, and the fan 1 receives the voltage from the ac power supply, that is, the second optical coupler 45 is used for performing on-off control on the bidirectional thyristor 41, so as to control the start and the stop of the fan 1.
In one possible embodiment, the controller 3 outputs the turn-on signal at the rising edge of the zero-crossing signal and outputs the turn-on signal again at the next rising edge of the zero-crossing signal to rotate the fan 1.
As an alternative embodiment, as shown in fig. 1, the speed feedback unit 2 further includes a third power source 22, a third resistor 23, and a second transistor 24. One end of the third resistor 23 is electrically connected to the third power supply 22, and the other end is electrically connected to the controller 3; the base of the second transistor 24 is electrically connected to the electrode 21, the collector of the second transistor 24 is electrically connected between the controller 3 and the other end of the third resistor 23, and the emitter of the second transistor 24 is electrically connected to the ground.
In a possible embodiment, the tacho feedback unit 2 further comprises a ninth resistor arranged between the base of the second transistor 24 and the electrode 21.
When the magnet and the electrode 21 generate periodic electrical signals, the magnet rotates with the rotating shaft for one circle to generate a periodic electrical signal so as to realize the periodic connection and disconnection of the second triode 24, the controller 3 acquires the third electrical signal when the second triode 24 is connected, and the controller 3 acquires the fourth electrical signal when the second triode 24 is disconnected, wherein optionally, the fourth electrical signal is larger than the third electrical signal. And determining the number of the third electric signals or the fourth electric signals in a preset sampling period to determine the rotating speed of the fan 1.
As an alternative embodiment, as shown in fig. 1, the rotation speed feedback unit 2 further includes a first capacitor 25, and one end of the first capacitor 25 is electrically connected to the electrode 21, and the other end is electrically connected to the ground. The first capacitor 25 is used for filtering.
As an alternative embodiment, as shown in fig. 1, the rotation speed feedback unit 2 further includes a fourth resistor 26, and one end of the fourth resistor 26 is electrically connected to the electrode 21, and the other end is electrically connected to the ground.
Based on the same inventive concept, the embodiment of the application provides a range hood, and the range hood comprises the cleaning reminding system for the range hood in any one of the previous embodiments of the application.
Through this application embodiment provides a lampblack absorber, it is including the washing warning system that is used for the lampblack absorber, the rotational speed of fan 1 is acquireed through rotational speed feedback unit 2 to the controller 3 of this system, and the rotational speed of fan 1 that will acquire compares with the rotational speed of predetermineeing, if the rotational speed of fan 1 is less than predetermined rotational speed, it is heavier to explain the greasy dirt attached to 1 blade of fan, need wash fan 1, the output washs the warning signal, in order to remind the user in time to wash, improve the accuracy that the lampblack absorber washd the warning time.
Those skilled in the art will appreciate that various aspects discussed in this application can be interchanged, modified, combined, or eliminated. Further, the various aspects discussed in this application can be interchanged, modified, rearranged, decomposed, combined, or eliminated. Further, aspects of the prior art that have been disclosed in this application may also be interchanged, modified, rearranged, decomposed, combined, or eliminated.
In the description of the present application, it is to be understood that the terms "upper", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, the meaning of "a plurality" is two or more unless otherwise specified.
In the description of the present application, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, a fixed connection, a detachable connection, or an integral connection; 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 application can be understood in a specific case by those of ordinary skill in the art.
The particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is only a few embodiments of the present application and it should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present application, and that these improvements and modifications should also be considered as the protection scope of the present application.
Claims (10)
1. A wash warning system for lampblack absorber, characterized by, includes:
the fan (1) is electrically connected to an alternating current power supply;
the rotating speed feedback unit (2) is electrically connected to the fan (1);
the controller (3) is electrically connected with the rotating speed feedback unit (2) and used for outputting a cleaning reminding signal when the rotating speed of the fan (1) is determined to be lower than a preset rotating speed.
2. A cleaning reminder system for a range hood according to claim 1,
the fan (1) comprises a rotating shaft;
the rotating speed feedback unit (2) comprises a magnet and an electrode (21), the magnet is fixedly connected with the rotating shaft to synchronously rotate with the rotating shaft, and the electrode (21) surrounds the magnet and is fixedly connected with the shell of the fan (1).
3. A cleaning alert system for a range hood according to claim 1, further comprising:
the conduction unit (4) is electrically connected to the fan (1) and the controller (3) respectively, and the conduction unit (4) and the fan (1) are connected to the alternating current power supply in series;
the conduction unit (4) conducts the fan (1) and the alternating current power supply to start the fan (1) after receiving a conduction signal output by the controller (3).
4. A cleaning reminder system for a range hood according to claim 3, further comprising:
a zero-crossing signal detection unit (5) connected in series with the controller (3) to the AC power supply;
wherein the controller (3) outputs the conduction signal to the conduction unit (4) when the zero-crossing signal detection unit (5) detects a zero-crossing signal of the AC power supply, so that the fan (1) and the AC power supply are conducted.
5. A cleaning alert system for range hoods according to claim 4 characterized in that the zero-crossing signal detection unit (5) comprises:
a first diode (51) having an anode electrically connected to a line of the AC power supply;
a second diode (52) having an anode electrically connected to the neutral line of the AC power supply;
a first optical coupler (53), wherein a first end of an input side is electrically connected to a cathode of the first diode (51) and a cathode of the second diode (52), a second end of the input side is electrically connected between an anode of the second diode (52) and a zero line of the alternating current power supply, a first end of an output side is electrically connected to a ground wire, and a second end of the output side is connected with the controller (3);
a first power supply (54);
a first resistor (55) connected between the first power supply (54) and a second end of the output side of the first optocoupler (53).
6. A washing reminder system for a range hood according to claim 3, characterized in that the conducting unit (4) further comprises:
a bidirectional thyristor (41), a first main electrode of which is electrically connected to the fan (1) and a second main electrode of which is electrically connected to the live wire of the alternating current power supply;
a second power supply (42);
a second resistor (43) having one end electrically connected to the second power supply (42);
the base electrode of the first triode (44) is electrically connected with the controller (3), and the emitter electrode of the first triode is electrically connected with the ground wire;
the first end of the input side of the second optocoupler (45) is electrically connected to the collector of the first triode (44), the second end of the input side of the second optocoupler is electrically connected to the other end of the second resistor (43), the first end of the output side of the second optocoupler is electrically connected to the gate of the bidirectional thyristor (41), and the second end of the output side of the second optocoupler is electrically connected to the live wire of the alternating current power supply;
wherein, the fan (1) is also electrically connected with a zero line of the alternating current power supply.
7. The washing reminder system for a range hood according to claim 2, characterized in that the rotational speed feedback unit (2) further comprises:
a third power supply (22);
a third resistor (23) having one end electrically connected to the third power supply (22) and the other end electrically connected to the controller (3);
and the base electrode of the second triode (24) is electrically connected with the electrode (21), the collector electrode of the second triode is electrically connected between the controller (3) and the other end of the third resistor (23), and the emitter electrode of the second triode is electrically connected with the ground wire.
8. The washing reminder system for a range hood according to claim 7, characterized in that the rotational speed feedback unit (2) further comprises:
and a first capacitor (25) having one end electrically connected to the electrode (21) and the other end electrically connected to the ground.
9. A washing reminder system for range hoods according to claim 7, characterized in that the rotational speed feedback unit (2) further comprises:
and a fourth resistor (26) having one end electrically connected to the electrode (21) and the other end electrically connected to the ground.
10. A range hood, comprising:
a cleaning reminder system for a range hood as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221892489.4U CN218096144U (en) | 2022-07-21 | 2022-07-21 | A wash warning system and lampblack absorber for lampblack absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221892489.4U CN218096144U (en) | 2022-07-21 | 2022-07-21 | A wash warning system and lampblack absorber for lampblack absorber |
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| Publication Number | Publication Date |
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| CN218096144U true CN218096144U (en) | 2022-12-20 |
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| CN202221892489.4U Active CN218096144U (en) | 2022-07-21 | 2022-07-21 | A wash warning system and lampblack absorber for lampblack absorber |
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| Country | Link |
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| CN (1) | CN218096144U (en) |
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- 2022-07-21 CN CN202221892489.4U patent/CN218096144U/en active Active
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