Humidifying device

Abstract

The invention relates to a humidifying device which comprises a main machine assembly, an air inlet assembly and an air outlet assembly. A humidifying filter screen assembly; the humidifying filter screen assembly is arranged in the water tank assembly, and is connected between the air inlet cover and the water tank assembly; a laser water level detection module; the laser water level detection module is installed on the side, away from the humidification filter screen assembly, of the air inlet cover and used for detecting the height of the water level in the water tank assembly. According to the humidifying device, the accuracy of water level information detection in the water tank assembly can be improved.

Description

Technical Field

[0001] This application relates to the technical field of humidifying devices, and particularly to a humidifying apparatus. Background Art

[0002] A humidifier increases the humidity level of indoor air by converting water into fine water droplets or water vapor and releasing it into the air. If the water level in the water tank of the humidifier is too low, it may cause damage to the humidifier or stop it from working. Therefore, users need to detect the water level in the water tank of the humidifier in a timely manner to replenish water and ensure the normal operation of the humidifier.

[0003] Currently, the common water level detection methods on the market mainly include the following:

[0004] 1. Magnet + magnetic ring switch: A series of floats with magnetic rings are installed inside the water tank. When the water level rises or falls, the floats move accordingly. Each float corresponds to a magnetic ring switch. When the float approaches a certain magnetic ring switch, the switch state changes, thereby indicating the current water level.

[0005] Since the magnetic ring switch can only detect water level changes at preset height positions. For example, a magnetic ring switch is installed at a certain interval inside the water tank, and each switch represents a specific water level interval, that is, each magnetic ring switch can only represent the water level change within a specific height range. Therefore, this method usually can only provide segmented water level information.

[0006] 2. Water level capacitance sensor: Detects the water level based on the change in capacitance. The capacitance sensor consists of two electrodes, one of which is immersed in water. As the water level changes, the dielectric constant between the electrodes changes, thereby changing the capacitance value. By measuring the capacitance change, the water level height can be deduced.

[0007] Although the capacitance sensor can provide relatively accurate water level information, multiple electrodes are required to cover different water level intervals. Therefore, there is still a certain grading characteristic.

[0008] That is, the existing water level detection methods can only detect segmented water level information, resulting in low accuracy of the detected water level information. Summary of the Invention

[0009] This application provides a humidifying apparatus to solve the technical problem of low accuracy of the water level information detected by the existing water level detection methods.

[0010] In a first aspect, this application provides a humidifying apparatus, which includes:

[0011] A main body assembly, the main body assembly is provided with an air inlet cover;

[0012] A humidifying filter assembly;

[0013] A water tank assembly, wherein the humidifying filter assembly is arranged inside the water tank assembly and is connected between the air inlet cover and the water tank assembly;

[0014] A laser water level detection module; the laser water level detection module is installed on a side of the air inlet cover away from the humidifying filter assembly for detecting the water level height inside the water tank assembly.

[0015] In some possible implementation manners, the laser water level detection module includes a light sensing part and a control part, the light sensing part and the control part are connected to each other, the light sensing part is used for detecting the water level height inside the water tank assembly, and the control part is used for processing the optical signal detected by the light sensing part.

[0016] In some possible implementation manners, the air inlet cover is provided with a mounting groove, the mounting groove is provided with a through hole, the light sensing part passes through the through hole, and the control part is located in the mounting groove.

[0017] In some possible implementation manners, the light sensing part includes a transmitting head and a receiving head which are arranged at intervals, and the transmitting head and the receiving head are electrically connected.

[0018] In some possible implementation manners, the distance between the transmitting head and the receiving head is 2 millimeters to 5 millimeters.

[0019] In some possible implementation manners, the sensing distance of the laser water level detection module is 0.2 meters to 4 meters.

[0020] In some possible implementation manners, the sensing angle of the laser water level detection module is 2.5 degrees to 3.5 degrees.

[0021] In some possible implementation manners, the humidifying filter assembly includes a humidifying filter screen and a filter screen bracket, the humidifying filter screen is installed around the filter screen bracket, the filter screen bracket is arranged inside the water tank assembly, the filter screen bracket is provided with an avoidance hole, and the avoidance hole is arranged opposite to the laser water level detection module.

[0022] In some possible implementation manners, the distance between the avoidance hole and the laser water level detection module is positively correlated with the diameter of the avoidance hole.

[0023] The above technical solutions provided by the embodiments of the present application have the following advantages compared with the prior art:

[0024] The humidifying device provided by the embodiment of the present application includes a host component, an air inlet cover is provided on the host component; a humidifying filter component; a water tank component, the humidifying filter component is arranged in the water tank component and is connected between the air inlet cover and the water tank component; a laser water level detection module; the laser water level detection module is installed on a side of the air inlet cover away from the humidifying filter component for detecting the water level height in the water tank component.

[0025] Since the laser water level detection module calculates the distance between the emitting head and the water surface by measuring the time required for the laser pulse to travel from the emitting head to the water surface and then reflect back to the receiving head, so as to obtain the water level height in the water tank component, the high-precision time measurement enables the laser water level detection module to perform accurate distance measurement. Therefore, by setting the laser water level detection module in the present application, the accuracy of detecting the water level information in the water tank component can be improved. Description of the Drawings

[0026] The drawings here are incorporated into the specification and constitute a part of this specification, showing embodiments consistent with the present application, and are used together with the specification to explain the principles of the present application.

[0027] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0028] One or more embodiments are exemplarily illustrated by the pictures in the corresponding drawings. These exemplary illustrations do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements, unless otherwise stated, and the drawings in the drawings do not constitute a proportional limitation.

[0029] Figure 1 It is an assembly schematic diagram of a humidifying device provided by an embodiment of the present application;

[0030] Figure 2 It is an assembly schematic diagram of a water tank component provided by an embodiment of the present application;

[0031] Figure 3 For Figure 2 The cross-sectional schematic diagram;

[0032] Figure 4 For Figure 3 The cross-sectional schematic diagram of a partial structure;

[0033] Figure 5 It is a schematic diagram of the structure of the light sensing part passing through the through hole in the laser water level detection module provided by an embodiment of the present application;

[0034] Figure 6 Schematic structural diagram of the laser water level detection module provided by the embodiment of the present application;

[0035] Figure 7 Schematic structural diagram of the air inlet cover provided by the embodiment of the present application.

[0036] Description of the reference numerals in the drawings:

[0037] Humidifying device 10, host assembly 100, humidifying filter assembly 200, humidifying filter 210, filter support 220, avoidance hole 221, water tank assembly 300, air inlet cover 320, installation groove 321, through hole 322, laser water level detection module 400, light sensing part 410, transmitting head 411, receiving head 412, control part 420. Detailed implementation manners

[0038] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part rather than all of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0039] The following disclosure provides many different embodiments or examples for implementing different structures of the present application. To simplify the disclosure of the present application, the components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present application. In addition, the present application may repeat reference numerals and / or letters in different examples. This repetition is for the purpose of simplification and clarity and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0040] For ease of description, spatial relative relationship terms may be used in the text to describe the relative position relationship or movement of one element or feature shown in the figure with respect to another element or feature. These relative relationship terms are, for example, "inside", "outside", "inner side", "outer side", "below", "beneath", "above", "over", "front", "rear", etc. Such spatial relative relationship terms are intended to include different orientations of the device during use or operation other than the orientations depicted in the figure. For example, if the device in the figure undergoes a position flip, attitude change, or motion state change, then these directional indications will also change accordingly. For example, an element described as "below other elements or features" or "beneath other elements or features" will subsequently be oriented as "above other elements or features" or "over other elements or features". Therefore, the exemplary term "below" can include both upper and lower orientations. The device can be oriented otherwise (rotated 90 degrees or in other directions) and the spatial relative relationship descriptors used in the text are interpreted accordingly.

[0041] A humidifier increases the humidity level of indoor air by converting water into fine water droplets or water vapor and releasing it into the air. If the water level in the water tank of the humidifier is too low, it may cause damage to the humidifier or stop it from working. Therefore, users need to detect the water level in the water tank of the humidifier in a timely manner to replenish the water volume to ensure the normal operation of the humidifier.

[0042] The common water level detection methods currently available on the market mainly include the following:

[0043] 1. Magnet + magnetic ring switch: A series of floats with magnetic rings are installed inside the water tank. When the water level rises or falls, the floats also move accordingly. Each float corresponds to a magnetic ring switch. When the float approaches a certain magnetic ring switch, the switch state changes, thereby indicating the current water level.

[0044] Since the magnetic ring switch can only detect water level changes at preset height positions. For example, a magnetic ring switch is installed at a certain height interval inside the water tank, and each switch represents a specific water level range, that is, each magnetic ring switch can only indicate the water level change within a specific height range. Therefore, this method usually can only provide segmented water level information.

[0045] 2. Water level capacitance sensor: It detects the water level based on the change in capacitance. The capacitance sensor consists of two electrodes, and one of the electrodes is immersed in water. As the water level changes, the dielectric constant between the electrodes changes, thereby changing the capacitance value. By measuring the capacitance change, the water level height can be deduced.

[0046] Although the capacitance sensor can provide relatively accurate water level information, multiple electrodes are required to cover different water level intervals. Therefore, there is still a certain grading characteristic.

[0047] That is, the existing water level detection methods can only detect the classified water level information, resulting in low accuracy of the detected water level information.

[0048] In order to solve the technical problem in the prior art that the accuracy of the detected water level information is not high because only the classified water level information can be detected, the present application provides a humidifying device, which can improve the accuracy of water level information detection in the water tank assembly.

[0049] Refer to Figures 1-7 , the humidifying device 10 provided by the embodiment of the present application includes: a main machine assembly 100, a humidifying filter screen assembly 200, a water tank assembly 300, and a laser water level detection module 400.

[0050] Among them, the main machine assembly 100 is provided with an air inlet cover 320; the humidifying filter screen assembly 200 is arranged in the water tank assembly 300 and is connected between the air inlet cover 320 and the water tank assembly 300; the laser water level detection module 400 is installed on the side of the air inlet cover 320 away from the humidifying filter screen assembly 200 for detecting the water level height in the water tank assembly 300.

[0051] Since the laser water level detection module 400 calculates the distance between the transmitting head 411 and the water surface by measuring the time required for the laser pulse to travel from the transmitting head 411 to the water surface and then reflect back from the water surface to the receiving head 412, so as to obtain the height of the water level in the water tank assembly 300, the high-precision time measurement enables the laser water level detection module 400 to perform accurate distance measurement. Therefore, by setting the laser water level detection module 400, the present application can improve the accuracy of water level information detection in the water tank assembly 300.

[0052] In some possible implementation manners, the laser water level detection module 400 includes a light sensing part 410 and a control part 420. The light sensing part 410 and the control part 420 are connected to each other. The light sensing part 410 is used to detect the water level height of the water tank assembly 310, and the control part 420 is used to process the optical signal detected by the light sensing part 410.

[0053] Among them, the control part 420 can perform amplification processing, filtering processing, conversion processing, etc. on the optical signal detected by the light sensing part 410.

[0054] In some possible implementation manners, the air inlet cover 320 is provided with an installation groove 321, the installation groove 321 is provided with a through hole 322, the light sensing part 410 passes through the through hole 322, and the control part 420 is located in the installation groove 321.

[0055] By providing the installation groove 321 on the air inlet cover 320, the laser water level detection module 400 can be stably installed on the air inlet cover 320, ensuring that the laser water level detection module 400 will not be displaced due to vibration or other external forces during use. Moreover, by fixing the control unit 420 within the installation groove 321, the service life of the laser water level detection module 400 can be effectively extended.

[0056] In addition, by providing the through hole 322 in the installation groove 321, the light sensing unit 410 can pass through the through hole 322, ensuring that the laser beam can vertically irradiate downward onto the water surface in the water tank and be reflected back to the receiving head 412 from the water surface, that is, the laser beam can freely propagate within the preset sensing angle range without being blocked or interfered by the air inlet cover 320 or other components. In this way, the optical path can be prevented from being blocked, signal attenuation can be reduced, and the measurement accuracy can be improved.

[0057] In some possible embodiments, the light sensing unit 410 includes a transmitting head 411 and a receiving head 412 that are spaced apart, and the transmitting head 411 and the receiving head 412 are electrically connected.

[0058] Among them, the transmitting head 411 generally includes a laser diode or other types of light sources, which are used to generate high-energy laser pulses of a specific wavelength and direct them to be emitted.

[0059] The receiving head 412 generally includes a photodetector (such as a photodiode or an avalanche photodiode), which is used to receive the reflected optical signal.

[0060] In some possible embodiments, the distance between the transmitting head 411 and the receiving head 412 is 2 mm - 5 mm.

[0061] By setting the distance between the transmitting head 411 and the receiving head 412 to 2 mm - 5 mm, the sensing angle of the laser water level detection module 400 can be ensured to be within the effective detection range.

[0062] In some possible embodiments, the sensing distance of the laser water level detection module 400 is 0.2 m - 4 m.

[0063] Since when the laser beam is very close to the transmitting head 411, the so-called "near-field effect" may occur, that is, the reflected signal is too strong, resulting in saturation of the receiving head 412 or generating incorrect readings. Therefore, setting the minimum sensing distance to 0.2 m can effectively avoid this problem.

[0064] As the distance increases, the laser energy gradually attenuates, and the intensity of the reflected signal also weakens. Therefore, setting the maximum sensing distance to 4 meters can not only ensure that a strong enough reflected signal is captured by the receiving head 412, but also prevent the signal from being too weak to be accurately measured due to excessive distance.

[0065] In this way, by limiting the sensing distance of the laser water level detection module 400 to 0.2 meters - 4 meters, the accuracy of water level information detection in the water tank assembly can be improved.

[0066] In some possible embodiments, the sensing angle of the laser water level detection module 400 is 2.5 degrees - 3.5 degrees.

[0067] Since the laser beam diffusion range within 2.5 degrees - 3.5 degrees is small, the energy is more concentrated, the intensity and signal-to-noise ratio of the optical signal are better, and the concentrated and highly directional laser beam can reduce the interference of the external environment (such as background light, scattered light, etc.) on the measurement result, ensuring that the received reflected signal is purer. Therefore, a sensing angle of 2.5 degrees - 3.5 degrees can ensure that the laser pulse is accurately emitted and received, and effective detection cannot be achieved beyond this angle range.

[0068] In some possible embodiments, the humidifying filter assembly 200 includes a humidifying filter screen 210 and a filter screen support 220. The humidifying filter screen 210 is installed around the filter screen support 220. The filter screen support 220 is disposed within the water tank assembly 310. The filter screen support 220 is provided with an avoidance hole 221, and the avoidance hole 221 is disposed opposite to the laser water level detection module 400.

[0069] By providing the avoidance hole 221 in the filter screen support 220 and setting the avoidance hole 221 opposite to the laser water level detection module 400, the laser emitted by the laser water level detection module 400 can pass through the avoidance hole 221 and vertically irradiate the water surface in the water tank, and then be reflected back to the receiving head 412 of the laser water level detection module 400. In this way, the design of the avoidance hole 221 can ensure that the laser beam of the laser water level detection module 400 can be smoothly emitted and received, while avoiding blocking or interfering with the light path.

[0070] In some possible embodiments, the distance between the avoidance hole 221 and the laser water level detection module 400 is positively correlated with the diameter of the avoidance hole 221.

[0071] For example, if the distance between the avoidance hole 221 and the laser water level detection module 400 is 260.7 millimeters, the diameter of the avoidance hole 221 can be 25 millimeters to 30 millimeters; if the distance between the avoidance hole 221 and the laser water level detection module 400 is 200 millimeters, the diameter of the avoidance hole 221 is less than 25 millimeters. Similarly, if the distance between the avoidance hole 221 and the laser water level detection module 400 is 300 millimeters, the diameter of the avoidance hole 221 is greater than 30 millimeters.

[0072] In this way, the distance between the avoidance hole 221 and the laser water level detection module 400 is positively correlated with the diameter of the avoidance hole 221, and within the allowable error range, the induction angle of the laser water level detection module 400 can be ensured to be within a preset range, such as 2.5 degrees to 3.5 degrees.

[0073] In the above embodiments, the descriptions of the respective embodiments have their own emphases. For parts not described in detail in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

[0074] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0075] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality of" means two or more, unless otherwise specifically defined.

[0076] In the present application, unless otherwise clearly specified and limited, the terms "mounted", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it may be a connection, a detachable connection, or an integral body; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0077] In this application, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may include direct contact between the first and second features, or may also include the first and second features not being in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is less than that of the second feature.

[0078] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic representations of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification.

[0079] Obviously, those skilled in the art can make various changes and modifications to this application without departing from the spirit and scope of this application. Thus, provided that these modifications and variations of this application fall within the scope of the claims of this application and their equivalent technologies, this application also intends to include these changes and modifications.

[0080] As described above, the above is the specific implementation manner of this application, but the protection scope of this application is not limited thereto. Any person skilled in the art within the technical scope disclosed by this application can easily think of various equivalent modifications or substitutions, and these modifications or substitutions should all be covered by the protection scope of this application. Therefore, the protection scope of this application shall be subject to the protection scope of the claims.

Claims

1. A humidifying device, characterized in that, The humidifying device includes: A main machine component, and an air inlet cover is provided on the main machine component; A humidifying filter component; A water tank component, the humidifying filter component is arranged in the water tank component and is connected between the air inlet cover and the water tank component; A laser water level detection module; the laser water level detection module is installed on a side of the air inlet cover away from the humidifying filter component and is used to detect the water level height in the water tank component.

2. The humidifying device according to claim 1, wherein The laser water level detection module includes a light sensing part and a control part, the light sensing part and the control part are connected to each other, the light sensing part is used to detect the water level height in the water tank component, and the control part is used to process the optical signal detected by the light sensing part.

3. The humidifying device according to claim 2, wherein The air inlet cover is provided with an installation groove, the installation groove is provided with a through hole, the light sensing part passes through the through hole, and the control part is located in the installation groove.

4. The humidifying device according to claim 2, wherein, The light sensing part includes a transmitting head and a receiving head which are arranged at intervals, and the transmitting head and the receiving head are electrically connected.

5. The humidifying device according to claim 4, wherein, The distance between the transmitting head and the receiving head is 2 mm to 5 mm.

6. The humidifying device according to claim 1, characterized in that, The sensing distance of the laser water level detection module is 0.2 m to 4 m.

7. The humidifying device according to claim 1, wherein The sensing angle of the laser water level detection module is 2.5 degrees to 3.5 degrees.

8. The humidifying device according to claim 1, characterized in that, The humidifying filter component includes a humidifying filter screen and a filter screen support, the humidifying filter screen is installed around the filter screen support, the filter screen support is arranged in the water tank component, the filter screen support is provided with an avoidance hole, and the avoidance hole is arranged opposite to the laser water level detection module.

9. The humidifying device according to claim 8, characterized in that The distance between the avoidance hole and the laser water level detection module is positively correlated with the diameter of the avoidance hole.

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