WO2018129823A1

WO2018129823A1 - Water level control device for humidifier and humidifier using the device

Info

Publication number: WO2018129823A1
Application number: PCT/CN2017/080840
Authority: WO
Inventors: 蔡演强
Original assignee: 佛山市顺德区德尔玛电器有限公司
Priority date: 2017-01-15
Filing date: 2017-04-18
Publication date: 2018-07-19
Also published as: CN206695316U; CN107062496B; CN206846979U; CN106839238A; US20190049133A1; CN107062496A

Abstract

A water level control device for a humidifier, comprising a water tank (11) and a base (12) for a humidifier, the base (12) being provided therein with a steam generation cavity (2); the water tank (11) is provided with a water downward flowing port (110) which is provided thereon with a water downward flowing valve (3); the steam generation cavity (2) is provided with a water level control device which is sleeved on the water downward flowing valve (3) and comprises a limiting cover (4) having a peripheral wall provided with an opening, the limiting cover (4) being provided with a water outlet (41) at the top, and the limiting cover (4) being provided with a float (5) inside; the water outlet (41) is provided with a leaking plug (6), the bottom of which forms a contact portion (61), for being in contact with the float (5); the float (5) is displaced vertically in the limiting cover (4) along with the change of water level; when the float (5) is in contact with the leaking plug (6), the water outlet (41) is blocked and water downward flowing is halted, and otherwise when the float (5) is separated from the leaking plug (6), the water outlet (41) is opened and water is supplied. Further disclosed is a humidifier using the water level control device.

Description

Water level control device for humidifier and humidifier using the same

Technical field

The invention relates to the field of steam household appliances, and particularly relates to a water level control device for a humidifier and a humidifier using the same.

Background technique

With the development of science and technology, people's living standards are improving day by day, and people's requirements for living environment are gradually increasing. Among them, air humidity is one of the important factors affecting comfort, especially in the northern part of China and places where air conditioning is used for a long time. The environment is very dry, and the corresponding equipment is needed to increase the humidity of the air and adjust the comfortable living environment. Therefore, household humidification equipment is more and more popular among the public households and has become one of the necessary home appliances in the home.

At present, the humidifier on the market generally consists of a water tank and a base. The base is provided with a steam generating chamber, and is supplied to the steam generating chamber through the water tank, and the steam mist is generated by the generator of the base. The humidifier in the prior art is generally a watering type, and the water inlet and the water outlet valve of the lower water humidifier are jointly disposed at the bottom of the water tank. Before use, first remove the water tank from the base, then turn the water tank over, let the bottom of the water tank face up, unscrew the water outlet valve, fill the water through the water inlet, then screw the water outlet valve, and then install it back onto the base, The steam generation chamber is connected and the humidification is started. It can be seen that the whole process of adding water is very cumbersome, and the water tank after being filled with water is heavy, and the operation is very inconvenient.

To this end, the water-filled humidifier has been introduced on the market. Before the water-filled humidifier is used, water can be directly added from the water-filled cover provided on the upper part of the water tank. It is not necessary to disassemble the water tank, and water can be added from the bottom to start humidification. The structure is simple, convenient and easy to use, and gradually replaces the humidifier.

For the upper water humidifier, since the pressure in the water tank is affected by the atmospheric pressure, it is easy to overflow between the water tank and the humidifier base. It is necessary to set a water level control device that effectively controls the water supply to keep the humidifier in a normal working state. The water level control device in the prior art is generally a lever type or a solenoid valve type. Since the lever type water level control device needs to set a floating block connected to one end of the lever, the horizontal arrangement of the lever occupies a large internal space, the trigger speed is slow, and the water supply cannot be controlled in time. The water level control effect is poor; while the solenoid valve type water level control device has a fast response speed, but because the trigger is too sensitive, the switch is frequently activated, resulting in easy damage, complicated structure, and very power consumption. Therefore, the water level control device for the current water humidifier is still a research problem of major manufacturers.

Summary of the invention

The invention aims to provide a novel humidifier water level control device and a humidifier using the same, which has a simple structure and small occupied space, and can timely perform water supply control according to the actual situation of the water level of the steam generating chamber, and the triggering effect is accurate, and the electric energy is saved. It can effectively prevent the humidifier from overflowing easily or the situation of water shortage and drying, so that the user can safely use the humidifier.

In order to achieve the above object, the technical solution of the present invention is:

A water level control device for a humidifier, comprising a water tank and a base of the humidifier, wherein a steam generating chamber is arranged in the base; the water tank is provided with a water outlet, and a water valve is arranged on the water outlet; the steam generating chamber is provided with water a water level control device for the valve sleeve, the water level control device includes a limit cover with a peripheral wall opening, the top of the limit cover is provided with a water outlet, and a float is arranged inside; the water outlet is provided with a leak plug, The bottom of the leakage plug is a contact portion with the floating block; the floating block is displaced up and down in the limit cover with the change of the water level, and when the floating block is in contact with the leakage plug, the water outlet is blocked to stop the water; otherwise, the leakage is separated from the leakage plug. Open the water outlet for hydration.

In the humidifier water level control device of the present invention, compared with the prior art, the water level control device is a limit cover and a floating block disposed between the steam generating chamber and the water discharging valve, and the limiting cover is provided for the peripheral wall opening, and the top portion is provided The water outlet has a leak plug at the water outlet, and the bottom of the leak plug is a contact portion with the floating block. The limit range cover limits the movable range of the floating block, and the floating block changes with the water level of the steam generating chamber, and is displaced up and down in the limit cover. When the floating block contacts the leak plug, the blocked water outlet stops the water; otherwise, the drain Separate the plug and open the water outlet for hydration.

Compared with the lever type water level control device, the invention has simpler structure, small occupied space, limited limitation of the floating block, and up and down displacement with the water level change, and the contact portion of the floating block and the leak hole plug cooperate with each other to block Or open the water outlet to control the amount of water; and the maintenance and replacement is convenient, which is beneficial to the entire water level control device being disassembled for cleaning.

Compared with the electromagnetic valve type water level control device, the invention has simpler structure, saves electric energy, and timely performs water supply control according to the actual situation of the water level of the steam generating chamber, triggering in time, not frequently starting, causing damage of the switch, etc. It is energy-saving and environmentally friendly; it also reduces electrical connection, effectively avoids the risk of short circuit or leakage, and is convenient for repair, replacement and disassembly.

Therefore, the humidifier water level control device of the present invention limits the range of the floating block by the limit cover, and the float block cooperates with the water outlet leak plug on the limit cover, so that the water level in the steam generating chamber can be effectively controlled and performed in time. The hydration control ensures that the humidifier maintains the atomization operation, produces the steam mist, effectively prevents the humidifier from overflowing easily, or causes the water shortage to dry, so that the user can safely use the humidifier.

Further improving the shape of the limiting cover, the limiting cover is a hanging structure with a peripheral wall opening, comprising an upper cover, a circumferential wall and a bottom cover, wherein the upper cover is provided with the water outlet, and the circumferential wall is provided with water leakage a grid; the float block is restricted to be displaced up and down within the limit cover, and is in contact with or separated from the drain plug of the water outlet through the top of the float block. The cage-shaped limit cover is opened on the circumference wall, so that the floating block is integrally wrapped by the limit cover. On the one hand, the limit cover and the floating block are integrally formed, so that the limit cover and the floating block are disassembled together, cleaned or replaced and repaired; On the other hand, since the floating block is restricted from being displaced up and down in the limiting cover, compared with the cover structure of the prior art in which the limiting cover is only partially wrapped, the leakage plug of the top of the floating block and the water outlet can be further enhanced. Accurate alignment helps to improve the coaxiality of the two.

Further, the leakage plug is a circular sealing ring, and the ring is disposed in the water outlet; the contact portion of the leakage plug extends downward, and the shape of the contact portion matches the surface contour of the floating block, so that the floating block The contact surfaces of the contact portions are in good contact with each other, and the water outlet is closed to stop the water discharge.

The shape of the floating block is further improved, the top of the floating block is provided with a conical end, and the contact portion of the leak plug is a bell mouth. In practical applications, the floating block moves up and down within the limit cover with the change of the water level. When the water level rises, the floating block moves up and passes through the conical end, and the contact portion with the bell mouth contacts each other, blocking the water outlet and stopping. When the water level drops, the floating block moves down, the end of the floating block separates from the contact part, opens the water outlet, and replenishes the steam generating chamber, thereby efficiently performing water supply control, ensuring moderate water volume in the steam generating chamber, avoiding overflow or drying. The situation has occurred.

Further, the bottom of the floating block is provided with a groove, the limiting cover is matched with the volume of the floating block, and the bottom is provided with an upwardly extending positioning column; the position of the positioning column is matched with the contact portion, and The groove of the floating block is sleeved. In order to solve the problem of mutual position alignment between the end portion and the contact portion of the floating block, the water level control device of the present invention improves the structure of the floating block, and is provided with a groove at the bottom of the floating block, and is arranged to extend upward at the bottom of the limiting cover. And the positioning post matched with the position of the contact portion is sleeved by the positioning post and the groove of the floating block, thereby limiting the movable range of the floating block, so that the floating block can only be displaced up and down under the restriction of the positioning column, without offset The end of the floating block is accurately aligned with the contact portion, and the water outlet is blocked or opened to control the water level.

Another improvement is made to the shape of the floating block, which is a spherical floating ball, and the contact portion of the leak plug is an arcuate opening. The float-shaped floating block can contact the contact portion of the arbitrary spherical surface and the curved opening to increase the contact area. When the floating ball moves up to the contact portion, the contact portion between the spherical surface and the curved opening can contact each other to block the outlet. The nozzle; after the water level drops, the float moves down, the sphere is separated from the contact, and the outlet is opened to replenish water. The overall structure of the water level control device is more compact, saving costs and improving production quality.

The invention also provides a humidifier applying the water level control device, comprising a casing, a water tank and a base are arranged in the casing, a steam generating chamber and a fan are arranged in the base, and a steam generating chamber is provided with a generator; the outer casing is provided The upper cover and the upper cover are provided with a spray port; the water tank is provided with a water outlet, and the water outlet is provided with a water discharge valve; the steam generation chamber is provided with the water level control device and the water valve to sleeve, and the amount of water entering the steam generation chamber is controlled .

Further, the water tank is detachably connected to the base, and the water tank is further provided with a fogging bucket, and the top of the misting bucket is provided with a fogging hole communicating with the spraying port; when the water tank is installed in the outer casing and connected with the base, the water tank is connected The water valve is sleeved with the water level control device so that the mist bucket is located above the steam generating chamber. The detachable water tank design is beneficial to the user to add water. After the water tank is pumped out for watering, it is installed in the humidifier for atomization. When water is added directly to the humidifier, the water splashes out of the humidifier to ensure environmental sanitation. Safe to use.

Further, the launching valve includes a water retaining cover, a positioning ring, a spring and a ram, wherein the positioning ring is disposed in the water outlet; the ejector rod is connected to the water retaining cover through the positioning ring; There is a force receiving end that is driven to move the jack up and down; the spring is sleeved with the jack and elastically contacts between the positioning ring and the force receiving end. Since the water tank is detachable, When the water tank is detached from the base, the water outlet valve moves downward with the suction force of the ground, so that the water retaining cover and the ejector pin are moved downward to block the water outlet. At this time, the user can safely perform water adding operation and add water to the water tank.

On the basis of the above, the water outlet of the limiting cover is further provided with a top column; when the water tank is connected with the base, the top column is in contact with the force receiving end of the jack, and the jack is jacked up, so that the poppet valve is open. . In actual operation, when the user adds water to the water tank and is installed back to the base, the top of the water supply port of the limit cover is provided with a top column, and the top end is contacted with the force end of the ejector pin of the water valve, thereby jacking up the ejector The water valve is opened, so that the water on the water tank can enter the water outlet of the limit cover.

Further, the structure of the water tank is further improved, and the water tank is further provided with a filter cover attached to the water discharge valve, and the filter cover is provided with a filter grid to prevent impurities in the water tank from entering the water discharge valve, thereby causing a blockage condition to occur, so that The launching operation is smoother.

DRAWINGS

Figure 1 is a humidifier explosion diagram 1 to which a water level control device of the present invention is applied;

Figure 2 is an exploded view of the humidifier of the present invention 2;

Figure 3 is a view showing the structure of the first type of floating block of the water level control device of the humidifier of the present invention;

Figure 4 is a view of the limit cover structure of the water level control device of the present invention 1;

Figure 5 is a view of the limit cover structure of the water level control device of the present invention 2;

Figure 6 is a structural view showing the first floating block shape expansion scheme of the water level control device of the present invention;

Figure 7 is a view showing the structure of a second floating block shape of the water level control device of the humidifier of the present invention;

Figure 8 is a cross-sectional view 1 of the humidifier of the present invention;

Figure 9 is a cross-sectional view 2 of the humidifier of the present invention.

detailed description

A water level control device for a humidifier according to the present invention and a humidifier to which the device is applied will be described with reference to the accompanying drawings.

As shown in FIGS. 1 to 2, the humidifier includes a casing 1 having a water tank 11 and a base 12 therein. The base 12 is provided with a steam generating chamber 2 and a fan 13, and the steam generating chamber 2 is provided with a generator; The outer casing 1 is provided with an upper cover 14, and the upper cover 14 is provided with a spray port 141; the water tank 11 is provided with a water outlet 110, the water discharge port 110 is provided with a water discharge valve 3; and the steam generation chamber 2 is provided with a water supply valve 3 The water level control device controls the amount of water entering the steam generating chamber 2.

As shown in FIG. 3, the water level control device includes a limit cover 4 with a peripheral wall opening, a top of the limit cover 4 is provided with a water outlet 41, and a float block 5 is disposed therein; and the water outlet 41 is provided with a leak plug 6. The bottom of the leakage plug 6 is a contact portion 61 with the floating block 5; the floating block 5 is displaced up and down in the limiting cover 4 according to the water level change, and when the floating block 5 is in contact with the leakage plug 6, the sealing is blocked. The water outlet 41 stops the water; otherwise, it is separated from the leak plug 6, and the water outlet 41 is opened to replenish water. In this way, to ensure humidification The device maintains the atomization operation and produces a vapor mist, which effectively prevents the humidifier from overflowing easily or the water shortage and dryness, so that the user can safely use the humidifier.

As shown in FIGS. 4 to 5, the limiting cover 4 is preferably a cage structure with a peripheral wall opening, and includes an upper cover 401, a circumferential wall 402, and a bottom cover 403. The upper cover 401 is provided with the water outlet 41, and the circumferential wall 402 is provided with a water leakage grid; the floating block 5 is restricted from being displaced up and down in the limit cover 4, and is in contact with or separated from the top of the floating block 5 and the leakage plug 6 of the water outlet 41. On the one hand, the cage-shaped limit cover 4 is opened on the peripheral wall, so that the floating block 5 is integrally wrapped by the limiting cover 4, and the limiting cover 4 and the floating block 5 are integrally formed, so that the limiting cover 4 is disassembled together with the floating block 5. Down, cleaning or replacement maintenance; on the other hand, since the floating block 5 is restricted from being displaced up and down in the limiting cover 4, it is more reinforced than the prior art limit cover 4 is only a partially wrapped cover structure. The top of the floating block 5 and the leak plug 6 of the water outlet 41 are accurately aligned with each other, which is advantageous for improving the coaxiality of the two.

As shown in FIG. 3, the leak plug 6 is a circular seal ring, and the ring is disposed in the water outlet 41; the contact portion 61 of the leak plug 6 extends downward, and the shape of the contact portion 61 is The surface contours of the floating block 5 are matched so that the contact surfaces of the floating block 5 and the contact portion 6 are in complete contact with each other, and the water outlet 41 is closed to stop the water discharge.

The top of the floating block 5 is provided with a conical end 51, and the contact portion 61 of the leak plug 6 is a bell mouth. When the water level rises, the floating block 5 moves up and passes through the conical end portion 51, and contacts the contact portion 61 of the bell mouth to block the water outlet 41 to stop the sewage; when the water level drops, the floating block 5 moves downward and floats. The end portion 51 of the block 5 is separated from the contact portion 61, and the water outlet 41 is opened to replenish water to realize the water supply control, and the amount of water in the steam generating chamber 2 is ensured to be moderate to avoid overflow or dryness.

In order to solve the problem of positional alignment of the end portion 51 of the floating block 5 and the contact portion 61, the water level control device of the present invention improves the structure of the floating block 5, as shown in FIG. 6, the bottom portion of the floating block 5 is provided with a groove. 52, the limiting cover 4 is adapted to the volume of the floating block 5, and the bottom portion is provided with an upwardly extending positioning post 42; the positioning post 42 is positioned to cooperate with the contact portion 61 and with the groove 52 of the floating block 5 Socketing, limiting the range of motion of the floating block 5, allowing the floating block 5 to be displaced up and down only under the restriction of the positioning post 42, without offset, so that the end portion 51 of the floating block 5 and the contact portion 61 are accurately aligned, and the plugging portion is blocked. Or open the water outlet 41 to achieve water level control.

Another embodiment of the shape of the floating block 5 of the water level control device of the present invention is as shown in Fig. 7. The floating block 5 is a spherical floating ball, and the contact portion 61 of the leak plug 6 is an arcuate opening. The float-shaped floating block 5 can be brought into contact with each other by the contact portion 61 of the arbitrary spherical surface and the curved opening, thereby increasing the contact area. When the floating block 5 is moved up to the contact portion 61, the contact portion 61 of the spherical surface and the curved opening can be brought into contact with each other to block the water outlet 41. After the water level drops, the floating block 5 moves downward, and the spherical surface is separated from the contact portion 61. Open the water outlet 41 to replenish water. The overall structure of the water level control device is more compact, saving costs and improving production quality.

On the other hand, the structure of the water tank is optimized. As shown in FIG. 2, the water tank 11 is detachably connected to the base 12, and the water tank 11 is further provided with a fogging bucket 7, and the top of the misting bucket 7 is provided with a spray. The vent hole 71 communicated with the port 141; when the water tank 11 is installed in the outer casing 1 and connected to the base 12, the drain valve 3 is sleeved with the water level control device such that the effluent bucket 7 is located above the steam generating chamber 2. The detachable water tank 11 is designed to facilitate the user to add water. The water tank 11 is pumped out for water addition, and then installed into the humidifier for atomization. When water is directly added to the humidifier, the water splashes out of the humidifier to ensure the environment. Health and safety.

As shown in FIG. 8 , the water outlet valve 3 includes a water retaining cover 31 , a positioning ring 32 , a spring 33 , and a jack 34 . The positioning ring 32 is disposed in the water outlet 110 ; the jack 34 passes through the positioning. The ring 32 is connected to the water retaining cover 31; the bottom of the jack 34 is provided with a force receiving end 340 that is driven to move the jack 34 up and down; the spring 33 is sleeved with the jack 34, and is placed on the positioning ring 32 and the force The ends 340 are in resilient contact. Since the water tank 11 is detachable, when the water tank 11 is detached from the base 12, the water discharging valve 3 moves downward with the suction force of the earth, so that the water blocking cover 31 and the ejector lever 34 are moved downward, and the water outlet 110 is blocked, so that the user can The water adding operation is performed with peace of mind, and water is added to the water tank 11.

On the basis of the above, the water outlet 41 of the limiting cover 4 is further provided with a top pillar 43 as shown in FIGS. 4 and 8; when the water tank 11 is connected with the base 12, the top pillar 43 and the jack 34 are subjected to The force end 340 is in contact, and the jack 34 is jacked up, so that the drain valve 3 is in an open state. In the actual operation, when the user adds water to the water tank 11 and is installed back to the base 12, since the water outlet 41 of the limiting cover 4 is provided with the top pillar 43, the top pillar 43 and the ejector lever 34 of the lower water valve 3 are received. The force end 340 contacts and pushes up the ejector lever 34, so that the water retaining cover 31 opens the water discharge port 110, so that the water discharge valve 3 is in an open state, so that the water on the water tank 11 can enter the water outlet 41 of the limit cover 4.

Preferably, as shown in FIG. 9, the water tank 11 is further provided with a filter cover 8 covering the water discharge valve 3. The filter cover 8 is provided with a filter grid 81 to prevent impurities in the water tank 11 from entering the water. Valve 3 causes a blockage to occur, making the launching operation smoother.

Variations and modifications of the above-described embodiments may also be made by those skilled in the art in light of the above disclosure. Therefore, the invention is not limited to the specific embodiments disclosed and described herein, and the modifications and variations of the invention are intended to fall within the scope of the appended claims. In addition, although specific terms are used in the specification, these terms are merely for convenience of description and do not limit the invention.

Claims

A water level control device for a humidifier, comprising a water tank and a base of the humidifier, wherein the base is provided with a steam generating chamber; the water tank is provided with a water outlet, and the water outlet is provided with a water discharging valve; wherein the steam generating chamber is characterized by The water level control device is provided with a water level control device, and the water level control device comprises a limit cover with a peripheral wall opening, the top of the limit cover is provided with a water outlet, and a float is arranged inside; the water outlet is provided with a leak hole a plug, the bottom of the leak plug is a contact portion with the floating block; the floating block is displaced up and down in the limit cover according to the water level change, and when the floating block is in contact with the leak plug, the plug outlet stops the water; otherwise The leak plug is separated and the water outlet is opened for hydration.
The water level control device according to claim 1, wherein the limiting cover is a cage structure with a peripheral wall opening, and includes an upper cover, a circumferential wall and a bottom cover, wherein the upper cover is provided with the water outlet, the circumferential wall A water leakage grid is provided; the floating block is restricted to be displaced up and down within the limiting cover, and is in contact with or separated from the leakage plug at the top of the floating block and the water outlet.
The water level control device according to claim 1, wherein the leak plug is a circular seal ring, and the ring is disposed in the water outlet; the contact portion of the leak plug extends downward, and the shape of the contact portion Matches the surface contour of the float.
The water level control device according to claim 3, wherein the top of the floating block is provided with a conical end, and the contact portion of the leak plug is a bell mouth.
The water level control device according to claim 4, wherein the bottom of the floating block is provided with a groove, the limiting cover is adapted to the volume of the floating block, and the bottom portion is provided with an upwardly extending positioning column; The position of the column cooperates with the contact portion and is sleeved with the groove of the floating block.
The water level control device according to claim 3, wherein the floating block is a spherical floating ball, and the contact portion of the leak plug is an arcuate opening.
A humidifier comprises a casing, a water tank and a base are arranged in the casing, a steam generating chamber and a fan are arranged in the base, a generator is arranged in the steam generating chamber; the outer cover is provided with an upper cover, and the upper cover is provided with a spray port; The water tank is provided with a water outlet, and the water outlet is provided with a water discharge valve; wherein the steam generation chamber is provided with the water level control device according to any one of claims 1 to 6, the water level control device is sleeved with the water discharge valve, Control the amount of water entering the steam generating chamber.
The humidifier according to claim 7, wherein the water tank is detachably connected to the base, and the water tank is further provided with a fogging bucket, and the top of the misting bucket is provided with a fogging hole communicating with the spray port; When the water tank is installed in the outer casing and connected to the base, the water outlet valve is sleeved with the water level control device, so that the mist spray bucket is located above the steam generating chamber.
The humidifier according to claim 8, wherein the lower water valve comprises a water retaining cover, a positioning ring, a spring and a jack, the positioning ring is disposed in the water outlet; the jack passes through the positioning ring and the block The water cap is connected; the bottom of the jack is provided with a force end that is driven to move the jack up and down; the spring is sleeved with the jack and elastically contacts between the positioning ring and the force receiving end.
The humidifier according to claim 9, wherein the water outlet of the limiting cover is further provided with a top column; when the water tank is connected with the base, the top column is in contact with the force receiving end of the jack, and is jacked up The ejector pin makes the lower water valve open.
The humidifier according to claim 7, wherein the water tank is further provided with a filter cover attached to the water discharge valve, and the filter cover is provided with a filter grid.