CN107166611B - humidifier - Google Patents

humidifier Download PDF

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Publication number
CN107166611B
CN107166611B CN201710433152.4A CN201710433152A CN107166611B CN 107166611 B CN107166611 B CN 107166611B CN 201710433152 A CN201710433152 A CN 201710433152A CN 107166611 B CN107166611 B CN 107166611B
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China
Prior art keywords
module
signal
humidifier
float
signal receiving
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CN201710433152.4A
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Chinese (zh)
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CN107166611A (en
Inventor
郑丰周
张建华
张可
高佳慧
关敬维
李俊锴
苏志华
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Gree Electric Appliances Inc of Zhuhai
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Gree Electric Appliances Inc of Zhuhai
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Priority to CN201710433152.4A priority Critical patent/CN107166611B/en
Publication of CN107166611A publication Critical patent/CN107166611A/en
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Publication of CN107166611B publication Critical patent/CN107166611B/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F6/00Air-humidification, e.g. cooling by humidification
    • F24F6/12Air-humidification, e.g. cooling by humidification by forming water dispersions in the air
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/0008Control or safety arrangements for air-humidification

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Dispersion Chemistry (AREA)
  • Air Humidification (AREA)
  • Level Indicators Using A Float (AREA)

Abstract

The application provides a humidifier. The liquid level detection device includes: a float; the signal transmitting module is used for simultaneously transmitting signals at different positions; the signal receiving module is used for receiving the signals sent by the signal transmitting module at different positions at the same time; the position change of the floater can change the position area of the signal receiving module receiving the signal so as to reflect the information of the liquid level. In the liquid level detection device provided by the application, the signal transmitting module can transmit signals at different positions, the change of the position of the floater can influence the signals at different positions so as to change the signals received by the signal receiving module, the difference of the signals received by the signal receiving module can reflect the information of the liquid level, the influence of factors such as water quality and the like is avoided, the detection sensitivity is high, the stability is good, and the signal transmitting module and the signal receiving module do not need to be in direct contact with water, so that the use reliability of the liquid level detection device is further improved.

Description

Humidifier
Technical Field
The application relates to the field of liquid level detection, in particular to a humidifier.
Background
In order to avoid the operation of an atomization module in the humidifier in a water shortage state, a liquid level switch or a liquid level detection device is arranged in a water tank of the humidifier, and in the prior art, whether water is deficient in the water tank is generally detected by adopting a method of matching a capacitance induction type liquid level detection device or a reed pipe with a magnetic ring. The capacitance induction type liquid level detection device judges the water level in the water tank according to different capacitances generated by different water levels, and as the conductivity of water can directly influence the detection capacity value, the larger the conductivity of water is, the smaller the conductivity of the detected capacitance value is, the smaller the detected capacitance value is, when the water with different conductivity is used for humidification, the detected capacitance value is different, even when pure water is used (the conductivity is basically 0), the pure water cannot be compared with a reference capacitance because the pure water cannot be conducted, so that the hidden danger of water in the water tank but water shortage is misreported exists; the mode that tongue tube and magnetic ring cooperate is, tongue tube is fixed in the water tank is inside, when the water tank is full of water, float the magnetic ring and float under the buoyancy effect of water for float the magnetic ring and be close to tongue tube, tongue tube realizes switching on under the magnetic force effect of float the magnetic ring, when the water tank lacks water, float the magnetic ring and sink below the water tank and keep away from tongue tube under the magnetic force effect, tongue tube breaks off under not having the magnetic force effect, because the magnetic ring is with the water level height in the water tank and float or sink, when the magnetic ring does not wash for a long time, the magnetic ring surface generates the incrustation and has the viscidity, so the magnetic ring possibly has the clamping stagnation phenomenon when floating or sinking, thereby there is the hidden danger of misinformation lack of water or unable forecast water, in addition, can only carry out the detection of whether the water tank lacks water through tongue tube and magnetic ring matched detection mode, and can't detect to the water level in the water tank.
Disclosure of Invention
In view of the above, an object of the present application is to provide a humidifier capable of detecting a liquid level and having high detection reliability.
In order to achieve the above purpose, on one hand, the present application adopts the following technical scheme:
a liquid level detection device, comprising:
a float;
the signal transmitting module is used for simultaneously transmitting signals at different positions;
the signal receiving module is used for receiving the signals sent by the signal transmitting module at different positions at the same time;
wherein, the position change of the float can change the position area of the signal receiving module receiving signal to reflect the information of the liquid level.
Preferably, the signal transmitting module is used for transmitting signals at a plurality of positions, and the position change of the floater can change the number of the signals received by the signal receiving module;
or alternatively, the process may be performed,
the change of the position of the floater can change the intensity of the signal received by the signal receiving module.
Preferably, a part of the float is disposed between the signal transmitting module and the signal receiving module, and the part of the float is capable of blocking a signal emitted from the signal transmitting module.
Preferably, the device further comprises a mounting structure, one end of the float is hinged with the mounting structure, and the other end of the float can be suspended in liquid.
Preferably, the signal emitting module includes a plurality of light emitting elements.
Preferably, the signal receiving module includes a plurality of light control switches corresponding to the plurality of light emitting element positions.
Preferably, the system further comprises a control module for obtaining liquid level information according to the signals received by the signal receiving module.
On the other hand, the application adopts the following technical scheme:
a humidifier comprising a liquid level detection device as described above.
Preferably, the humidifier includes a housing having an opening and a cover for opening and closing the opening, a water storage space is formed in the housing, and the signal transmitting module and the signal receiving module are both mounted on the cover.
Preferably, the cover body is of a hollow structure, and the signal transmitting module and the signal receiving module are accommodated in the hollow structure.
Preferably, a concave structure is formed on the inner side surface of the cover body, and one end of the floater is positioned in the concave structure.
Preferably, the cover body comprises a bottom plate, the inner side surface of the bottom plate is concave, the outer side surface of the bottom plate protrudes to form the concave structure, and the signal transmitting module and the signal receiving module are respectively arranged on two opposite side walls of the concave structure.
Preferably, one end of the float is hinged with the cover body, and the other end of the float can be suspended in the liquid in the water storage space.
Preferably, the humidifier further comprises an atomizing module mounted on the float.
Preferably, the humidifier further comprises a power supply module, the atomization module is connected with the power supply module through a first connecting line, the floater is of a hollow structure, and the first connecting line is accommodated in the hollow structure; and/or the number of the groups of groups,
the humidifying device further comprises a control module, the atomizing module is connected with the control module through a second connecting line, the floater is of a hollow structure, and the second connecting line is accommodated in the hollow structure.
Preferably, the float comprises a first part and a second part, a plug is arranged on one of the first part and the second part, a socket is arranged on the other of the first part and the second part, the plug is connected with the power supply module and/or the control module through a wire harness, and the socket is connected with the first connection line and/or the second connection line.
In the liquid level detection device provided by the application, the signal transmitting module can simultaneously transmit signals at different positions, the change of the position of the floater can influence the signals at different positions so as to change the position area of the signal receiving module for receiving the signals, the difference of the signals received by the signal receiving module can reflect the information of the liquid level, the influence of factors such as water quality and the like is avoided, the detection sensitivity is high, the stability is good, and the signal transmitting module and the signal receiving module do not need to be in direct contact with water, so that the use reliability of the liquid level detection device is further improved.
Drawings
The above and other objects, features and advantages of the present application will become more apparent from the following description of embodiments of the present application with reference to the accompanying drawings, in which:
fig. 1 is a diagram showing an outline configuration of a humidifier according to an embodiment of the present application;
fig. 2 is a schematic view showing a structure of a top plate of a humidifier removing cover according to an embodiment of the present application;
fig. 3 is a schematic view showing an internal structure of a humidifier according to an embodiment of the present application when the humidifier is at a high water level;
fig. 4 shows a schematic diagram of the position of a float at a signal transmitting module and a signal receiving module when a humidifier according to an embodiment of the present application is at a high water level;
fig. 5 is a schematic view showing an internal structure of a humidifier according to an embodiment of the present application at a medium water level;
fig. 6 shows a schematic diagram of the position of a float at a signal transmitting module and a signal receiving module when the humidifier according to an embodiment of the present application is at a medium water level;
fig. 7 is a schematic view showing an internal structure of a humidifier according to an embodiment of the present application at a low water level;
fig. 8 is a schematic diagram showing the positions of the floats at the signal transmitting module and the signal receiving module when the humidifier according to the embodiment of the present application is at a low water level;
fig. 9 is a schematic diagram showing an internal structure of a humidifier according to an embodiment of the present application in a water-deficient state;
fig. 10 is a schematic diagram showing the positions of the floats at the signal transmitting module and the signal receiving module when the humidifier according to the embodiment of the present application is in a water-deficient state;
FIG. 11 illustrates a perspective view of a float provided in an embodiment of the present application;
FIG. 12 shows a cross-sectional view of a float provided in an embodiment of the present application;
FIG. 13 is a schematic view showing the structure of a first part according to the embodiment of the present application;
fig. 14 shows a schematic structural view of the connecting rod in the second section provided in the embodiment of the present application.
In the figure, 1, a shell; 2. a cover body; 21. a top plate; 22. a bottom plate; 221. a concave structure; 222. a sidewall; 23. side coaming; 3. a first hinge shaft; 4. a water tank; 5. an atomization module; 6. a blower; 7. a mist outlet; 8. a float; 81. a first portion; 811. a second hinge shaft; 812. a plug; 813. a first connecting rod; 82. a second portion; 821. a housing; 822. a buoy; 823. a second connecting rod; 824. a socket; 9. a signal transmitting module; 10. a signal receiving module; 11. a control module; 12. a power supply module; 13. a mounting plate; 14. a display module; 15. a wire harness; 16. a first connection line; 17. and a second connection line.
Detailed Description
The present application is described below based on embodiments, and it will be understood by those of ordinary skill in the art that the drawings provided herein are for illustrative purposes and that the drawings are not necessarily drawn to scale.
Unless the context clearly requires otherwise, throughout the description and the claims, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is, it is the meaning of "including but not limited to".
The terms "upper", "lower", "top" and "bottom" are used herein only to refer to the relative positional relationship, with reference to the orientation of the humidifier when in normal operation. As used herein, "inside" and "outside" are the sides closer to the interior of the humidifier and the sides farther from the humidifier relative to the humidifier itself.
The application provides a liquid level detection device and a humidifier with the same, and of course, it is understood that the liquid level detection device is also applicable to other devices needing liquid level detection. The specific structure of the humidifier will be mainly described below by taking the humidifier and a liquid level detection device provided in the humidifier as examples. As shown in fig. 1, the humidifier includes a top-opened housing 1 and a cover 2 for opening and closing the top opening, and as shown in fig. 3, the cover 2 is preferably hinge-coupled with the housing 1 through a first hinge shaft 3. The inside water tank 4 that is provided with of shell 1, the water storage space that prescribes a limit to the humidifier through water tank 4 is provided with atomizing module 5 in the water tank 4, and atomizing module 5 is used for atomizing the water in the water tank 4, has seted up fog outlet 7 on shell 1 or the lid 2, and the water smoke of production can be blown out by fog outlet 7 through fan 6 to play the humidification effect to the environment at humidifier place. The atomizing module 5 may be selected as an ultrasonic atomizer, a heating atomizer, or the like according to the type of humidifier.
A liquid level detection device is arranged in the humidifier and is used for detecting the liquid level in the water tank. As shown in fig. 2 and 3, the liquid level detecting device includes a float 8, a signal transmitting module 9 and a signal receiving module 10, wherein the signal transmitting module 9 is used for simultaneously transmitting signals at different positions, the signal receiving module 10 is used for simultaneously receiving signals transmitted by the signal transmitting module 9 at different positions, and the float 8 can directly or indirectly affect the signals transmitted by the signal transmitting module 9 through other structures linked with the float 8, and the affecting manner can be, for example, blocking or reflecting the signals transmitted by the signal transmitting module 9. When the liquid level changes, the position of the floater 8 changes along with the change, the change of the position of the floater 8 can influence signals at different positions, and then the position area of the signals received by the signal receiving module 10 is changed, the information of the liquid level can be reflected through different signals (such as the number of the received signals and the intensity of the signals) received by the signal receiving module 10, the detection mode cannot be influenced by factors such as water quality, and the detection sensitivity is high and the stability is good. It should be understood that, the signal transmitting module 9 herein simultaneously transmits signals at different positions means that signals are transmitted at different positions, regardless of the start-stop time of the signals transmitted at different positions, that is, the transmitted signals may be continuous or intermittent, when the signals are intermittent, the time points of the signals transmitted at different positions may be the same or different, and accordingly, the signal receiving module 10 simultaneously receives signals at different positions means that signals are received at different positions, regardless of the start-stop time of the signals received at different positions, that is, when the signals are intermittent, the time points of the signals received at different positions may be the same or different.
Preferably, the signal transmitting module 9 and the signal receiving module 10 are oppositely disposed, the signal transmitting module 9 can transmit a plurality of mutually independent signals, for example, the signal transmitting module 9 includes a plurality of light emitting elements with different positions, so as to transmit a plurality of light signals with different positions, the signal receiving module 10 can be, for example, a photoswitch corresponding to the plurality of light emitting elements respectively, the photoswitch receiving the light signals is opened, the photoswitch not receiving the light signals is in a closed state, one end of the float 8 is located between the signal transmitting module 9 and the signal receiving module 10, and a part located between the signal transmitting module 9 and the signal receiving module 10 is a shading material, the light signals transmitted by the signal transmitting module 9 can be blocked, the signal receiving module 10 can not receive the light signals of which part is blocked by the float 8, and the other end of the float 8 is suspended in the liquid in the water tank 4, so that when the position of the float 8 changes, the quantity of the light signals received by the signal receiving module 10 changes accordingly, and the liquid level in the water tank 4 can be reflected accordingly. The number and the position of the optical signals sent by the signal sending module 9 can be set according to specific requirements, and the more the number is, the finer the reflected liquid level information is.
The signal transmitting module 9 and the signal receiving module 10 may be disposed at any position of the humidifier, for example, on a side wall of the water tank 4 or the cover 2, preferably, the signal transmitting module 9 and the signal receiving module 10 are disposed on the cover 2, so that the signal transmitting module 9 and the signal receiving module 10 are far away from water in the water tank 4, further preferably, as shown in fig. 1 and 2, the cover 2 is in a hollow structure, for example, the cover 2 is surrounded by a top plate 21, a bottom plate 22 and a side wall plate 23, and the signal transmitting module 9 and the signal receiving module 10 are accommodated in the cover 2, so that these electrical elements of the signal transmitting module 9 and the signal receiving module 10 are isolated from water, and use reliability of the electrical elements is ensured. In addition, the humidifier further includes a control module 11 (for example, a switch for controlling the humidifier, adjusting a humidification gear, determining a liquid level condition in the water tank according to a signal received by the signal receiving module, etc.) for controlling the operation of the humidifier, and a power supply module 12 for supplying power to the fan 6, the liquid level detecting device, the control module 11, the atomizing module 5, etc., preferably, the control module 11 and the power supply module 12 are also accommodated in the cover 2, so as to ensure the reliability of use of the control module 11 and the power supply module 12.
Preferably, in order to make the structure more compact, the inner side surface of the cover 2 is formed with a concave structure 221, for example, as shown in fig. 2 and 3, the inner side surface of the bottom plate 22 of the cover 2 is concave, and correspondingly the outer side surface (here, the outer side surface is the surface of the bottom plate 22 corresponding to the humidifier itself, i.e., near the hollow structure) is convex to form the concave structure 221, so that the concave structure 221 is located in the hollow structure of the cover 2, as shown in fig. 3, one end of the float 8 protrudes into the concave structure 221, as shown in fig. 2, the signal transmitting module 9 and the signal receiving module 10 are oppositely mounted on two side walls 222 opposite to the concave structure 221, for example, as shown in fig. 2, the signal transmitting module 9 and the signal receiving module 10 are both mounted on the side walls 222 of the concave structure 221 through the mounting plate 13, and the mounting plate 13 are light transmitting materials, and thus the light signals emitted by the signal transmitting module 9 can be received by the mounting plate 13 and the concave structure 221 or blocked by the float 8. In addition, the fan 6 may be preferably disposed in the concave structure 221.
Preferably, to make the structure more compact, one end of the float 8 is hinged to the cover 2, and the other end is suspended in the liquid in the tank, so that the displacement generated by the other end of the float 8 is greater and the displacement generated by the end hinged to the cover 2 is smaller. In a further preferred embodiment, as shown in fig. 3, one end of the float 8 is provided with a second hinge shaft 811, and two side walls 222 of the concave structure 221 constitute a mounting structure of the float 8, and both ends of the second hinge shaft 811 of the float 8 are respectively hinged with two side walls 222 of the concave structure 221, which are the two side walls 222 for mounting the signal transmitting module 9 and the signal receiving module 10. Thus, when the liquid level in the tank 4 changes, the end of the float 8 suspended in the liquid is displaced, so that the float 8 rotates about the second hinge shaft 811, and the portion of the float 8 located in the concave structure 221 changes the number of blocked optical signals, thereby changing the signal received by the signal receiving module 9. In order to facilitate the opening and closing of the cover 2, the second hinge shaft 811 and the first hinge shaft 3 are preferably disposed parallel to each other, and further preferably on the same side of the center position of the cover 2. In an alternative embodiment, the cover 2 is provided with a guide rail extending up and down, one end of the float 8 can slide up and down along the guide rail, so as to achieve the purpose of changing the position area of the signal receiving module 10 for receiving the signal, in addition, the part of the float 8 between the signal transmitting module 9 and the signal receiving module 10 can be gradually changed from top to bottom, and the purpose of changing the position area of the signal receiving module 10 for receiving the signal can be achieved through the change of the width.
In the following, the working process of the liquid level detection device of the present application is specifically described by taking three optical signals sent by the signal sending module as an example, the three optical signals sent by the signal sending device are respectively an optical signal a, an optical signal B and an optical signal C, as shown in fig. 3 and fig. 4, when the water tank 4 is in a full liquid state, the position of one end of the float 8 suspended in the liquid is highest, the position of the float 8 blocks the three optical signals, at this time, the signal receiving module 10 fails to receive any optical signal, the signal receiving module 10 sends three low level signals to the control module 11, and the control module 11 determines that the liquid level in the water tank 4 is a high water level according to the received signals. As shown in fig. 5 and 6, as the atomizing module 5 gradually atomizes the water in the water tank 4 and blows it out from the mist outlet 7, the water level in the water tank 4 gradually drops, the float 8 rotates about the second hinge shaft 811 until it rotates to a position where it fails to block the optical signal a but only blocks the optical signal B and the optical signal C, at this time, the signal receiving module 10 sends one high level signal and two low level signals to the control module 11, and the control module 11 determines that the water level in the water tank 4 is the medium water level based on the received signals. As shown in fig. 7 and 8, as the water level in the water tank 4 further drops, the float 8 continues to rotate about the second hinge shaft 811 until it reaches a position where it fails to block the optical signals a and B but only the optical signal C, at which time the signal receiving module 10 sends two high level signals and one low level signal to the control module 11, and the control module 11 determines that the water level in the water tank 4 is a low water level based on the received signals. As shown in fig. 9 and 10, when the water level in the water tank 4 further drops and the float 8 continues to rotate around the second hinge shaft 811 to a position where any light signal cannot be blocked, the signal receiving module 10 sends three high level signals to the control module 11, and the control module 11 determines that the water tank 4 is in a water shortage state according to the received signals, at this time, the control module 11 can perform water shortage prompt through the prompt module connected with the control module 11, and can control the atomizing module 5 to be closed at the same time.
Preferably, in order to ensure that the atomizing module 5 is always in an optimal operating position (i.e. to ensure that the atomizing module 5 is always at a predetermined distance from the liquid surface), the atomizing module 5 is mounted on the float 8 and is movable with the movement of the float 8. It is further preferred that, as shown in fig. 12, the end of the float 8 suspended in the liquid is provided with a mounting structure for mounting the atomizing module 5, for example, a housing 821 formed at the end of the float 8, the atomizing module 5 being embedded in the housing 821. Additionally, a float 822 may be provided on the housing 821 to indicate the level of liquid in the tank 4.
Preferably, the atomizing module 5 is connected with the power supply module 12 via a first connecting line 16, the atomizing module is connected with the control module 11 via a second connecting line 17, the float 8 is arranged to be hollow for facilitating wiring of the atomizing module 5 with the control module 11 and the power supply module 12, and the first connecting line 16 and the second connecting line 17 are both accommodated in the hollow structure of the float 8.
Further preferably, as shown in fig. 11 and 12, the float 8 includes a first portion 81 provided with a plug 812 and a second portion 82 provided with a socket 824, as shown in fig. 13, a second hinge shaft 811 is provided on the first portion 81, the first portion 81 further includes a first connecting rod 813 provided perpendicularly to the second hinge shaft 811, one end of the first connecting rod 813 is connected to the second hinge shaft 811, the plug 812 is provided on an end face of the other end of the first connecting rod 813, and the plug 812 of the first portion 81 can be connected to the power supply module 12 and the control module 11 through the wire harness 15, respectively, for example, into the cover 2 through the second hinge shaft 811, and connected to the power supply module 12 and the control module 11 in the cover 2. The second portion 82 includes a second connection rod 823 and the housing 821, one end of the second connection rod 823 is connected with the housing 821, as shown in fig. 14, the socket 824 is disposed on an end face of the other end of the second connection rod 823, the second connection rod 823 is of a hollow structure and is communicated with the housing 821, and the first connection line 16 and the second connection line 17 can both enter the second connection rod 823 and be connected with the socket 824. In this way, the plug 812 can be plugged into the socket 824 to connect the atomizing module 5 with the power supply module 12 and the control module 11, thereby facilitating the wiring of the atomizing module 5 and protecting the wiring from liquid in the water tank. Of course, it is understood that the positions of the plug 812 and the receptacle 824 may be reversed.
Preferably, for ease of processing, the first portion 81 and the second portion 82 are provided as an integrally formed structure, respectively, to improve reliability of the structure.
Preferably, in order to facilitate the user to more intuitively check the liquid level state in the humidifier, the humidifier further includes a display module 14 connected to the control module 11, and the liquid level information is displayed through the display module 14, for example, the display module may be an indicator light, a display screen, or the like.
In an alternative embodiment, the signal emitting module 9 may emit a signal in a continuous area, and the change of the position of the float 8 can change the intensity of the signal received by the signal receiving module 10, for example, the signal emitting module 9 is a light emitting device, the signal receiving module 10 is a photoresistor, the larger the area of the blocked light signal is, the smaller the light intensity of the blocked light signal is, the larger the area of the blocked light signal is, and the light intensity of the blocked light signal is, so that the information of the liquid level can be determined according to the resistance value of the photoresistor.
It is easy to understand by those skilled in the art that the above preferred embodiments can be freely combined and overlapped without conflict.
The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, and various modifications and variations may be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (12)

1. A humidifier comprising a liquid level detection device, the liquid level detection device comprising:
a float;
the signal transmitting module is used for simultaneously transmitting signals at different positions;
the signal receiving module is used for receiving the signals sent by the signal transmitting module at different positions at the same time;
the position change of the floater can change the position area of the signal received by the signal receiving module so as to reflect the information of the liquid level;
the humidifier comprises an atomization module, wherein a mounting structure is arranged at one end of the floater, which is suspended in liquid, and the atomization module is mounted on the mounting structure;
the humidifier further comprises a power supply module, wherein the atomizing module is connected with the power supply module through a first connecting line, the floater is of a hollow structure, and the first connecting line is accommodated in the hollow structure; and/or the number of the groups of groups,
the humidifier further comprises a control module, the atomization module is connected with the control module through a second connecting line, the floater is of a hollow structure, and the second connecting line is accommodated in the hollow structure;
the float comprises a first part and a second part, a plug is arranged on one of the first part and the second part, a socket is arranged on the other of the first part and the second part, the plug is connected with the power supply module and/or the control module through a wire harness, and the socket is connected with the first connecting line and/or the second connecting line.
2. The humidifier of claim 1, wherein the signal emitting module is configured to emit signals at a plurality of locations, wherein a change in the position of the float is capable of changing the number of signals received by the signal receiving module;
or alternatively, the process may be performed,
the change of the position of the floater can change the intensity of the signal received by the signal receiving module.
3. A humidifier according to claim 1 or 2, wherein a part of the float is arranged between the signal emitting module and the signal receiving module, and wherein the part is adapted to block the signal emitted by the signal emitting module.
4. A humidifier according to claim 1 or claim 2, wherein one end of the float is hingedly connected to the cover and the other end is capable of being suspended in a liquid.
5. A humidifier according to claim 1 or 2, wherein the signal emitting module comprises a plurality of light emitting elements.
6. The humidifier of claim 5, wherein the signal receiving module includes a plurality of light control switches corresponding to the plurality of light emitting element positions.
7. The humidifier of claim 1 or 2, further comprising a control module for obtaining liquid level information from the signal received by the signal receiving module.
8. The humidifier of claim 1, comprising a housing having an opening and a cover for opening and closing the opening, wherein a water storage space is formed in the housing, and wherein the signal emitting module and the signal receiving module are mounted on the cover.
9. The humidifier of claim 8, wherein the cover is hollow, and the signal transmitting module and the signal receiving module are housed within the hollow of the cover.
10. A humidifier according to claim 8 or 9, wherein the cover has a concave structure formed on an inner side surface thereof, and one end of the float is located in the concave structure.
11. The humidifier of claim 10, wherein the cover comprises a bottom plate, an inner side surface of the bottom plate is concave, an outer side surface of the bottom plate is convex to form the concave structure, and the signal transmitting module and the signal receiving module are respectively mounted on two opposite side walls of the concave structure.
12. The humidifier of claim 8, wherein one end of the float is hingedly connected to the cover and the other end is capable of being suspended in the liquid in the water holding space.
CN201710433152.4A 2017-06-09 2017-06-09 humidifier Active CN107166611B (en)

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CN107166611B true CN107166611B (en) 2023-10-27

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