Humidifier

Abstract

The utility model relates to the technical field of humidifiers, in particular to a humidifier, and at least solves the problem that an existing humidifier is prone to water leakage after being used for a long time. The humidifier provided by the utility model comprises a box body, a cover body and an atomization module, an inner cavity is formed in the box body, a guide cylinder is arranged in the inner cavity, a guide channel in the guide cylinder is provided with a liquid passing opening communicated with the inner cavity, and the cover body is provided with a mist outlet channel communicated with the guide channel and the outside; the atomization module is arranged in the guide channel and comprises a shell, an atomization sheet and a pressure sensor; the atomization module is arranged to be capable of freely floating on the liquid level in the guide channel and float or descend along with the change of the height of the liquid level, and the pressure sensor and the atomization piece are kept in a water immersion state in the floating or descending process of the atomization module. According to the utility model, the water level in the box body can be reasonably controlled, and the problems of possible dry burning of the atomizing sheet when the liquid level is too low and poor atomizing effect of the atomizing sheet caused by too high liquid level are avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to humidifier technical field, specifically provide a humidifier. BACKGROUND

[0002] The current market humidifier or other products with atomization function, generally tend to adopt ultrasonic atomization technology. In the actual use of such products, in view of the water level has direct influence on its mist effect, therefore, how to monitor the water level in the water tank becomes a vital link.

[0003] The existing humidifier mostly relies on the combination type mechanical structure of dry reed and water float to realize water level monitoring, and controls the water adding amount through this mechanical structure to keep the water in the water tank in sufficient state. However, this water level control scheme using mechanical structure has the following defects: on the one hand, the mechanical structure needs to ensure good sealing property when closing to prevent water leakage, which usually relies on spring structure to compress silicone rubber to realize. However, with the passage of time, the silicone rubber is prone to lose elasticity due to aging, thereby increasing the risk of water leakage. On the other hand, in the actual use process, foreign matters will inevitably fall into the water tank. If these foreign matters happen to be stuck at the position of silicone rubber sealing, the sealing property will be damaged, which will also cause water leakage problem. Once water leakage occurs, the water in the water tank will overflow from the inside of the product, which not only will damage the product quality, but also will seriously affect the user's use experience. SUMMARY

[0004] The utility model aims at solving the above technical problem, that is, at least solving the problem that the existing humidifier is prone to water leakage after long time use due to the mechanical type water level detection structure of dry reed and water float.

[0005] In a first aspect, the utility model provides a humidifier, which comprises a box body, a cover body and an atomization module.

[0006] The box body has an inner cavity for containing liquid, and a guide cylinder is arranged in the inner cavity. A guide channel is formed in the guide cylinder, and a liquid passage is arranged in the guide channel and communicates with the inner cavity. The cover body is provided with a mist outlet channel which communicates with the guide channel and the outside.

[0007] The atomization module is arranged in the guide channel, and comprises a shell, an atomization sheet and a pressure sensor. The atomization sheet and the pressure sensor are arranged in the shell. The atomization module is arranged to be able to freely float on the liquid surface in the guide channel and rise or fall with the change of the liquid surface height, and the pressure sensor and the atomization sheet remain in the water during the rising or falling process.

[0008] The humidifier provided by the utility model, through modularization (atomization module) of the core component realizing ultrasonic atomization and installation in the guide channel, after liquid is added, the atomization module will be suspended in the guide channel due to the overall buoyancy and will float or sink with the change of liquid level, in this process, since the atomization module is always in a floating state, therefore the pressure value measured by the pressure sensor in the normal state is invariable (since the height of the pressure sensor from the liquid surface is always invariable).

[0009] And in the process of adding water to the box, with the gradual rise of the liquid level in the guide channel, the atomization module also floats, before reaching the highest limit, the height of the pressure sensor from the liquid surface is always invariable (ignoring slight fluctuation), therefore the measured pressure value is also always invariable.

[0010] In some possible embodiments of the humidifier, the inner top of the guide cylinder is provided with a limiting structure for limiting the highest floating height of the atomization module.

[0011] In some possible embodiments of the humidifier, the shell, the atomization sheet and the pressure sensor are sealed to form an integrated structure.

[0012] In some possible embodiments of the humidifier, the shell is provided with a recessed portion with a top opening, and the atomization sheet is installed at the bottom of the recessed portion.

[0013] In some possible embodiments of the humidifier, the side wall of the recessed portion is formed with a through slot or a through hole communicating the recessed portion and the guide channel.

[0014] In some possible implementation manners of the humidifier, a projection of a profile of the mist outlet channel along a length direction of the mist outlet channel completely covers the recess and / or a mist outlet of the atomizing piece.

[0015] In some possible implementation manners of the humidifier, the pressure sensor is arranged at a bottom of the shell; and / or

[0016] The pressure sensor is one or more.

[0017] In some possible implementation manners of the humidifier, the liquid inlet is arranged on a bottom wall of the guide cylinder or at a bottom position of a side wall of the guide cylinder.

[0018] In some possible implementation manners of the humidifier, the guide cylinder is integrally formed with the cover or connected as an integral structure with the cover; or

[0019] The guide cylinder is integrally formed with the box or connected as an integral structure with the box.

[0020] In some possible implementation manners of the humidifier, the humidifier further comprises a control module and a signal module.

[0021] The pressure sensor and the signal module are connected with the control module.

[0022] The control module is configured to receive and analyze detection data of the pressure sensor, and control the signal module to send a signal according to an analysis result of the detection data. BRIEF DESCRIPTION OF DRAWINGS

[0023] The preferred embodiments of the present application will be described below with reference to the accompanying drawings, in which:

[0024] Figure 1 A perspective structural schematic view of the humidifier provided by the embodiments of the present application is shown in the drawings;

[0025] Figure 2 A top view of the humidifier provided by the embodiments of the present application is shown in the drawings;

[0026] Figure 3 A Figure 2 A sectional view along the A-A direction;

[0027] Figure 4 A structural schematic view of the atomizing module of the humidifier provided by the embodiments of the present application is shown in the drawings;

[0028] Figure 5 A top view of the atomizing module of the humidifier provided by the embodiments of the present application is shown in the drawings;

[0029] Figure 6The left view of the atomization module of the humidifier is provided for the embodiments of the utility model.

[0030] Figure 7 The bottom view of the atomization module of the humidifier is provided for the embodiments of the utility model.

[0031] List of reference signs:

[0032] 1, box body; 11, inner cavity; 2, cover body; 21, guide cylinder; 211, guide channel; 212, liquid passage; 213, limiting structure; 22, mist outlet channel; 3, atomization module; 31, shell; 311, recessed part; 312, through slot; 32, atomization piece; 33, pressure sensor. DETAILED DESCRIPTION

[0033] The preferred embodiments of the utility model are described below with reference to the drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the utility model, and are not used to limit the protection scope of the utility model. Those skilled in the art can make adjustments according to the needs in order to adapt to specific application occasions. In order to better illustrate the utility model, numerous specific details are given in the following detailed description. Those skilled in the art should understand that the utility model can also be implemented without certain specific details.

[0034] In the description of the utility model, the terms "upper", "lower", "inner", "outer", "left", "right", "front", "rear" and other terms indicating direction or positional relationship are based on the direction or positional relationship in actual application, which is only for the convenience of description, and is not indicative or suggestive of the device to be protected must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, ordinal numbers such as "first", "second" are only for the convenience of explanation, and are not used to indicate or suggest relative importance.

[0035] In addition, it also needs to be explained that, in the description of the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "connecting" should be understood broadly, for example, it can be fixed connection, or detachable connection or integral connection; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0036] Please refer to Figures 1 to 3 The utility model embodiment provides a kind of humidifier, which includes box body 1, cover body 2 and atomization module 3.

[0037] As Figure 3As shown in the figure, the box body 1 has an inner cavity 11 for containing liquid, and the cover body 2 is arranged on the top of the box body 1 to close and protect the inner cavity 11. The liquid in the inner cavity 11 can be pure water or distilled water, or medicinal liquid or other liquid meeting specific use requirements, such as aromatherapy liquid formed by adding essential oil.

[0038] The inner cavity 11 is provided with a guide cylinder 21, the inside of the guide cylinder 21 forms a guide channel 211, the cover body 2 is provided with an out-mist channel 22 communicating with the top end of the guide channel 211 and the outside, and the bottom of the guide cylinder 21 is provided with a liquid passage 212 communicating with the bottom end of the guide channel 211 and the inner cavity 11. The liquid passage 212 can be arranged on the bottom wall of the guide cylinder 21, or arranged at the bottom position of the side wall of the guide cylinder 21, that is, the liquid passage 212 is a liquid passage hole arranged on the side wall of the guide cylinder 21.

[0039] The guide cylinder 21 can be connected with the cover body 2 as an integral structure or integrally formed, or connected with the box body 1 as an integral structure or integrally formed, as follows:

[0040] In some embodiments, referring to Figure 3 the top of the box body 1 is open, and the top of the guide cylinder 21 is connected with the cover body 2 as an integral structure or integrally formed, such as connected as an integral structure by snap connection, adhesion or the like. The top end of the guide channel 211 communicates with the bottom end of the out-mist channel 22. This design helps to ensure that the mist generated inside can flow along the predetermined path, which is beneficial to reduce the loss of the mist in the transmission process, and the installation is more convenient.

[0041] In other embodiments, the top of the box body 1 is provided with a top plate, the top of the guide cylinder 21 is connected with the top plate, and the bottom of the guide cylinder 21 is integrally formed or connected as an integral structure with the box body 1.

[0042] In other embodiments, the guide cylinder 21 can also be connected with the inner side wall of the box body 1 through a connecting piece, and the top of the guide cylinder 21 abuts against the bottom of the cover body 2, so that the guide channel 211 in the guide cylinder 21 can communicate with the out-mist channel 22 in the cover body 2.

[0043] The atomization module 3 is movably arranged in the guide channel 211, and includes a shell 31, an atomization sheet 32 and a pressure sensor 33. The atomization sheet 32 and the pressure sensor 33 are arranged on the shell 31, and the pressure sensor 33 is used to measure the pressure value of the liquid surface. The atomization sheet 32 is arranged with an atomization opening facing the atomization channel 22. The atomization module 3 is arranged to be freely floated on the liquid surface in the guide channel 211 and to float up or down along with the change of the liquid surface height. During the floating up or down, the pressure sensor 33 and the atomization sheet 32 are kept in the immersed state. Since the atomization module 3 can freely float up or down along with the change of the liquid surface height, it is ensured that the atomization sheet 32 and the pressure sensor 33 are always in the immersed state. This self-adaptive feature enables the atomization module 3 to cope with different liquid surface heights during operation, without the need for manual adjustment of the position of the atomization module 3, thereby improving the flexibility and adaptability of the device.

[0044] Specifically, as shown in Figures 4 to 7 The shell 31, the atomization sheet 32 and the pressure sensor 33 are sealingly formed as an integrated structure. The shell 31 can be made of a lightweight material with a density lower than that of the liquid, or the shell 31 is designed as a hollow structure and filled with air. In this way, the shell 31 itself and the atomization sheet 32 and the pressure sensor 33 mounted thereon (i.e. the entire atomization module 3) can float in the guide channel 211 as a whole along with the change of the liquid surface height. The pressure sensor 33 is specifically a water level pressure sensor 33, and the pressure value measured by the water level pressure sensor 33 is related to the immersion depth of the water level pressure sensor 33. The atomization sheet 32 is specifically an ultrasonic atomization sheet 32, which needs to be driven by a corresponding driving circuit. When the guide cylinder 21 and the cover 2 are integrally formed or connected as an integrated structure, the driving circuit of the atomization module 3 can be arranged in the cover 2. The driving circuit is connected to the atomization sheet 32 through wires, and the length of the wires is not less than the maximum travel of the atomization module 3 in the guide cylinder 21, so that the wires do not hinder the floating of the floating atomization module 3.

[0045] It should be noted that, in the natural floating state, the immersion depth of the atomization module 3 should be higher than the atomization sheet 32, and when the atomization module 3 touches the bottom limit (such as the bottom wall of the guide cylinder 21) and stops floating and sends an alarm, the immersion depth should still be able to ensure that the atomization sheet 32 is immersed. This can be achieved by selecting appropriate materials and setting the installation height of the atomization sheet 32, etc. The purpose is to prevent the atomization sheet 32 from dry burning before the water level is too low and an alarm is sent.

[0046] Please refer to Figure 4 and Figure 5The housing 31 is provided with a top-opened recess 311, and the atomizing sheet 32 is installed at the bottom of the recess 311. The recess 311 is a cylindrical groove provided on the housing 31, and the diameter of the groove is greater than that of the atomizing sheet 32, so that the atomizing sheet 32 can be reasonably avoided from the mist outlet, and the mist generated by the atomizing sheet 32 can smoothly flow into the mist outlet channel 22 from the guide channel 211. The atomizing sheet 32 can be fixed at the bottom of the recess 311 by a silica gel ring. Moreover, during the process of adding water into the inner cavity 11 of the box body 1, when the water level in the guide cylinder 21 gradually rises and reaches the preset highest water level, the top surface of the housing 31 will touch the top limiting structure 213, and the recess 311 can provide anti-collision protection for the atomizing sheet 32 arranged in the recess 311, which is beneficial to ensure that the atomizing sheet 32 is not damaged at the highest water level, and greatly prolongs the service life.

[0047] Further, as shown in Figure 4 and Figure 5 , the side wall of the recess 311 is formed with a through groove 312 communicating the recess 311 and the guide channel 211. The through groove 312 is arranged to facilitate the liquid in the guide channel 211 to directly flow into the recess 311, that is, the liquid level in the guide channel 211 and the liquid level in the recess 311 are always leveled, so as to ensure that the atomizing sheet 32 can always be in a water-soaked state, effectively avoiding the dry burning phenomenon that may occur when the atomizing sheet 32 is not soaked in liquid.

[0048] In another embodiment, the side wall of the recess 311 can be formed with a through hole communicating the recess 311 and the guide channel 211. The through hole is also arranged to facilitate the liquid in the guide channel 211 to directly flow into the recess 311, so as to ensure that the atomizing sheet 32 can always be in a water-soaked state.

[0049] Please refer to Figure 2 , the profile projection of the mist outlet channel 22 along the length direction completely covers the mist outlet of the atomizing sheet 32, so as to ensure that all the mist generated from the atomizing sheet 32 can be effectively guided into the mist outlet channel 22, reducing the dispersion and waste of the mist, and improving the utilization rate of the mist. Especially, when the diameter of the recess 311 is greater than that of the atomizing sheet 32, the profile projection of the mist outlet channel 22 along the length direction completely covers the recess 311, so as to effectively prevent the mist from accumulating or flowing back in the recess 311, and ensure the one-way flow of the mist, so that the mist can be more smoothly discharged from the mist outlet channel 22.

[0050] Please refer to Figure 6 and Figure 7 , the pressure sensor 33 is arranged at the bottom of the housing 31. The pressure sensor 33 is one or more, as Figure 7As shown, there are two pressure sensors 33, and the specific number of pressure sensors 33 is set according to actual needs. Two or more pressure sensors 33 can sense water level pressure from different locations, thereby providing more comprehensive and accurate data. Moreover, using multiple pressure sensors 33 can increase the redundancy of the entire device. Even if one pressure sensor 33 fails or malfunctions, the other pressure sensor 33 can still provide valid data.

[0051] like Figure 3 As shown, when the pressure sensor 33 is located at the bottom of the housing 31, the bottom of the guide cylinder 21 is provided with a liquid inlet 212 that connects the guide channel 211 and the inner cavity 11. The liquid inlet 212 not only ensures the flow of liquid between the guide channel 211 and the inner cavity 11, but also effectively avoids the position of the pressure sensor 33, preventing unnecessary collisions between the bottom of the guide cylinder 21 and the pressure sensor 33 during the operation of the atomizing module 3, thereby reducing the risk of damage to the pressure sensor 33.

[0052] Furthermore, the humidifier also includes a control module and a signal module. Both the pressure sensor 33 and the signal module are connected to the control module. The control module is configured to receive and analyze the detection data from the pressure sensor 33, and control the signal module to send signals based on the analysis results. The signal module includes one or more alert methods, such as an audible alert or a visual alert. Thus, after analyzing the detection data from the pressure sensor 33, the control module can choose to control the audible alert to emit a clear audible signal, or control the visual alert to produce a flashing warning light, thereby reminding the user that the humidifier's water level is too high or too low.

[0053] Please see Figure 3 The bottom of the guide cylinder 21 is provided with a bottom wall, which can serve as the bottom limiting structure 213 of the atomizing module 3 to limit the minimum descent height of the atomizing module 3. A first preset pressure threshold can be set for the pressure sensor 33. When the pressure value detected by the pressure sensor 33 is less than or equal to the first preset pressure threshold, the control module can control the atomizing module 3 to immediately stop working and issue a water-adding prompt through the signal module. That is, the first preset pressure threshold corresponds to the minimum water level value, which must ensure that the atomizing plate 32 is in a water-immersed state.

[0054] Please see Figure 3The inner top of the guide cylinder 21 is provided with a top limiting structure 213, which is a limiting plane, for limiting the maximum floating height of the atomization module 3. A second preset pressure threshold can also be set for the pressure sensor 33, wherein the second preset pressure threshold is greater than the first preset threshold, and when the pressure sensor 33 detects that the pressure value is greater than or equal to the second preset pressure threshold, the signal module will timely remind to stop adding water.

[0055] In this way, under the joint action of the limiting structure 213 and the pressure sensor 33, the maximum floating height and the minimum descending height of the atomization module 3 can be limited, corresponding to the maximum water level and the minimum water level respectively, when the atomization module 3 moves between the minimum water level and the maximum water level, the buoyancy received by the atomization module 3 is equal to its own gravity, that is, the buoyancy received by the atomization module 3 will not change, the immersion depth of the shell 31, the pressure sensor 33 and the atomization sheet 32 is always maintained unchanged, the pressure value measured by the pressure sensor 33 is a fixed value, at this time the atomization sheet 32 will neither dry burning phenomenon due to the low liquid level, nor poor misting effect due to the high liquid level.

[0056] The utility model discloses in operation, through the realization ultrasonic atomization's core component modularization (atomization module 3) and install in the guide channel 211, after adding liquid, atomization module 3 due to the overall buoyancy will suspend in guide channel 211 and will float or descend along with the liquid level change, in this process, due to the atomization module 3 always be in the floating state, therefore the pressure value that pressure sensor 33 measured is unchangeable (since the pressure sensor 33 distance liquid surface height always unchangeable). And along with the continuous promotion of atomization operation, the liquid in the box 1 is gradually consumed, and the liquid level in the guide channel 211 also decreases, and the atomization module 3 naturally decreases, when the atomization module 3 touches the bottom limit of the guide channel 211 and stops descending, along with the further decrease of the water level, the distance of the pressure sensor 33 relative to the liquid surface will decrease, so that the measured pressure value will be lower than the first preset pressure threshold (corresponding to the minimum water level), so as to promote the atomization module 3 to pause work, and add water prompt is sent out.

[0057] During the process of adding water to the box 1, as the liquid level in the guide channel 211 gradually rises, the atomization module 3 also rises, and before reaching the highest limit, the distance between the pressure sensor 33 and the liquid level remains unchanged (ignoring slight fluctuations), so the measured pressure value also remains unchanged. After the atomization module 3 touches the top limit and stops rising, continuing to add water will increase the distance between the pressure sensor 33 and the liquid level, so that the pressure value detected by the pressure sensor 33 exceeds the second preset pressure threshold, and the system will timely remind to stop adding water, thereby automatically alarming in low water level state and high water level state. This not only meets the needs of the box 1 liquid level control, avoids the dry burning phenomenon that may occur to the atomization sheet 32 when the liquid level is too low, and the problem that the atomization effect of the atomization sheet 32 is poor due to the liquid level being too high, but also, due to the modularization of the core components of the atomizer, there is no need to set a complex sealing structure, thereby avoiding the problem of water leakage due to component aging after long-term use.

[0058] Thus far, the technical solutions of the present application have been described in conjunction with the preferred embodiments shown in the drawings, but those skilled in the art will readily understand that the scope of protection of the present application is obviously not limited to these specific embodiments. Those skilled in the art can make equivalent changes or replacements to related technical features without deviating from the principles of the present application, and the technical solutions after these changes or replacements will all fall within the scope of protection of the present application.

Claims

1. A humidifier, characterized by, The humidifier comprises a box body (1), a cover body (2) and an atomization module (3); The box body (1) has an inner cavity (11) for containing liquid, and a guide cylinder (21) is arranged in the inner cavity (11), and a guide channel (211) is formed in the guide cylinder (21), and the guide channel (211) is provided with a liquid communication port (212) in communication with the inner cavity (11), and the cover body (2) is provided with an atomization outlet channel (22) in communication with the guide channel (211) and the outside; The atomization module (3) is arranged in the guide channel (211), and the atomization module (3) comprises a shell (31), an atomization sheet (32) and a pressure sensor (33), and the atomization sheet (32) and the pressure sensor (33) are arranged in the shell (31); the atomization module (3) is arranged to be capable of freely floating on the liquid surface in the guide channel (211) and rising or falling along with the change of the liquid surface height, and the pressure sensor (33) and the atomization sheet (32) remain in a water-immersed state during the rising or falling process of the atomization module (3).

2. The humidifier of claim 1, wherein, The inner top of the guide cylinder (21) is provided with a limiting structure (213) for limiting the maximum rising height of the atomization module (3).

3. The humidifier of claim 1, wherein, The shell (31), the atomization sheet (32) and the pressure sensor (33) are sealed and formed as an integrated structure.

4. The humidifier of claim 3, wherein, The shell (31) is provided with a recessed portion (311) with a top opening, and the atomization sheet (32) is mounted at the bottom of the recessed portion (311).

5. The humidifier of claim 4, wherein, A through groove (312) or a through hole is formed in the side wall of the recessed portion (311) and in communication with the recessed portion (311) and the guide channel (211).

6. The humidifier of claim 4, wherein, The outline projection of the atomization outlet channel (22) along the length direction completely covers the recessed portion (311) and / or the atomization outlet of the atomization sheet (32).

7. The humidifier of claim 3, wherein, The pressure sensor (33) is arranged at the bottom of the shell (31); and / or The pressure sensor (33) is one or more.

8. The humidifier of claim 1, wherein, The liquid communication port (212) is arranged on the bottom wall of the guide cylinder (21) or at the bottom position of the side wall of the guide cylinder (21).

9. The humidifier of claim 1, wherein, The guide cylinder (21) is integrally formed or connected as an integrated structure with the cover body (2); or The guide cylinder (21) is integrally formed or connected as an integrated structure with the box body (1).

10. The humidifier according to any one of claims 1-9, wherein, The humidifier further comprises a control module and a signal module; The pressure sensor (33) and the signal module are connected with the control module; The control module is arranged to receive and analyze the detection data of the pressure sensor (33), and control the signal module to send signals according to the analysis result of the detection data.

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