WO2013174129A1

WO2013174129A1 - Humidifying apparatus and ventilation therapy apparatus provided with same

Info

Publication number: WO2013174129A1
Application number: PCT/CN2012/086550
Authority: WO
Inventors: 高树民; 庄志; 刘熠; 郑振华; 敬博炜
Original assignee: 北京怡和嘉业医疗科技有限公司
Priority date: 2012-05-22
Filing date: 2012-12-13
Publication date: 2013-11-28
Also published as: CN102671275B; CN102671275A

Abstract

A humidifying apparatus (100) and a ventilation therapy apparatus provided with the same. The humidifying apparatus(100) comprises a fluid storing chamber (110) for storing fluid; a humidifying chamber (120) with an air inlet (121) and an air outlet (122) arranged thereon; a communicating device (130) for connecting the fluid storing chamber (110) with the humidifying chamber (120) to provide the fluid in the fluid storing chamber (110) to the humidifying chamber (120); and a vaporizing device (140) arranged on the humidifying chamber (120) for vaporizing the fluid in the humidifying chamber (120), wherein, the fluid in the fluid storing chamber (110) is stopped from being provided to the humidifying chamber(120) when the fluid in the humidifying chamber (120) reaches a predetermined quantity. The humidifying apparatus (100) always does work on a small part of the fluid in the humidifying process and therefore has the advantages of saving the power consumption, avoiding the waste, accelerating the vapor generation, reducing the hazard of fluid back flow and increasing the use space of the fluid storing chamber.

Description

Humidification device and ventilation treatment device having the same

The present invention relates to the field of medical devices, and more particularly to a humidifying device and a ventilation therapy device having the same. Background technique

In order to treat apnea and other respiratory disorders during sleep, patients usually use ventilatory therapy equipment. The ventilation therapy device supplies a positive pressure of breathable gas to the patient through a patient contact member such as a mask to assist the patient in breathing, treat the patient's respiratory disorder, and reduce respiratory effort.

Ventilation therapy devices such as continuous positive pressure ventilation (CPAP) devices or non-invasive positive pressure ventilation (NIPPV) devices typically use a fan inside the main unit to introduce gas and deliver positive pressure gas to the patient contact components (eg, respiratory masks). ). However, this gas introduced directly into the patient's contact parts is relatively dry. In order to make the patient feel more comfortable, the ventilation therapy device usually also includes a humidification device. The humidifying device is disposed between the air outlet of the main body and the patient contacting member for humidifying the gas from the main body and then delivering the gas to the patient contacting member.

A humidification device of a typical ventilation therapy device includes a reservoir, and a heating plate is disposed below the reservoir. The heating plate is connected to the host of the ventilation therapy device to obtain a power supply. The liquid in the reservoir is heated by a heating plate to vaporize the liquid in the reservoir. However, since it is necessary to heat all the liquid in the liquid storage chamber at a time for each humidification process, the power consumption is large and waste is generated. In addition, since the air outlet of the main body of the ventilation treatment device is directly connected to the reservoir of the humidification device, the liquid in the reservoir is easily reversed into the main body and the fan is damaged. At present, in order to prevent the liquid from flowing backward, the highest liquid level that can be used in the liquid storage chamber is lowered, but this causes a waste of space in the liquid storage chamber.

Accordingly, it is desirable to provide a humidifying device and a ventilation therapy device having the same to solve the above problems in the prior art. Summary of the invention

A series of simplified forms of concepts are introduced in the Summary of the Invention, which will be Further details are provided in the section. The content of the present invention is not intended to limit the technical features of the claimed technical solutions, nor does it mean to attempt to determine the scope of protection of the claimed technical solutions.

In order to solve the above problems, the present invention discloses a humidifying device, the humidifying device comprising: a liquid storage chamber for storing a liquid; a humidifying chamber, wherein the humidifying chamber is provided with an air inlet and an air outlet a communication device, the communication device connecting the liquid storage chamber and the humidification chamber for supplying liquid in the liquid storage chamber to the humidification chamber; and a vaporization device, wherein the vaporization device is configured to The liquid in the humidification chamber is vaporized, wherein the humidification device is configured to stop supplying the liquid to the humidification chamber when the liquid in the humidification chamber reaches a predetermined amount.

Preferably, the liquid storage chamber is provided with a liquid inlet and a sealing cover covering the liquid inlet to seal the liquid storage chamber.

Preferably, the communication means is connected between a lower portion of the side wall of the liquid storage chamber and a lower portion of the side wall of the humidification chamber.

Preferably, the liquid inlet is provided at the bottom of the liquid storage chamber.

Preferably, the liquid inlet is provided at the top of the side of the liquid storage chamber where the communication device is disposed.

Preferably, the communication device is provided with a pump for controlling the flow rate of liquid from the reservoir to the humidification chamber.

Preferably, the humidifying device further comprises a switching device for turning the connecting device on and off.

Preferably, the liquid storage chamber surrounds the humidification chamber.

Preferably, the liquid storage chamber and the humidification chamber have a common side wall.

Preferably, the communication device is a through hole disposed on the common sidewall.

Preferably, the bottom surface of the humidification chamber protrudes inwardly to form an open downward groove in the bottom surface of the humidification chamber.

Preferably, an opening of the communication device connecting the liquid storage chamber and an upper end connecting the opening of the humidification chamber are higher than a bottom surface of the humidification chamber.

Preferably, the vaporization device is disposed within the recess.

Preferably, the air inlet of the humidification chamber includes an extension duct that protrudes into the humidification chamber, and the extension duct does not contact the liquid in the humidification chamber. Preferably, the humidifying device is a humidifying device for a ventilation therapy device.

The present invention also provides a ventilation therapy apparatus comprising a main body and a humidification device as described above, an air outlet of the main body being coupled to an intake port of the humidification chamber of the humidification device.

The humidifying device provided by the present invention always works on a small portion of the liquid during the humidifying process, thereby saving power consumption, avoiding waste, and accelerating the steam generation rate as compared with the existing humidifying device. And because the amount of liquid in the humidification chamber is small, the risk of backflow of the liquid is reduced. In addition, the liquid storage chamber and the humidification chamber of the present invention are separated, and the highest liquid level that can be used in the liquid storage chamber is the highest liquid level of the liquid storage chamber, thereby increasing the utilization space of the liquid storage chamber.

Advantages and features of the present invention are described in detail below with reference to the accompanying drawings. DRAWINGS

The following drawings of the invention are hereby incorporated by reference in their entirety in their entirety. The embodiments of the invention and the description thereof are shown in the drawings In the drawing,

1 is a schematic view of a humidifying device according to an embodiment of the present invention;

2 is a schematic view of a humidifying device according to another embodiment of the present invention;

3A is a cross-sectional view of a humidifying apparatus in accordance with a preferred embodiment of the present invention;

Figure 3B is a cross-sectional view of a humidifying apparatus in use according to another preferred embodiment of the present invention; Figure 3C is a cross-sectional view of the humidifying apparatus injecting a liquid according to another preferred embodiment of the present invention;

4A is an exploded perspective view of a humidifying apparatus according to a preferred embodiment of the present invention; and FIG. 4B is a cross-sectional view of the humidifying apparatus illustrated in FIG. 4A;

Figure 5 is a schematic illustration of a drug sprayer in accordance with one embodiment of the present invention. detailed description

In the following description, numerous specific details are set forth to provide a more thorough understanding of the invention. However, it will be apparent to those skilled in the art that the present invention may be practiced without one or more of these details. In other instances, some of the technical features well known in the art have not been described in order to avoid confusion with the present invention.

In order to thoroughly understand the present invention, a detailed structure will be set forth in the following description. Obviously, this hair The implementation of the invention is not limited to the specific details familiar to those skilled in the art. The preferred embodiments of the present invention are described in detail below, but the present invention may have other embodiments in addition to the detailed description.

The invention provides a humidifying device. The embodiments of the present invention are described in detail below with reference to the accompanying drawings. As shown in Fig. 1, the humidification apparatus 100 includes a reservoir 110, a humidification chamber 120, a communication device 130, and a vaporization device 140.

The reservoir 110 is used to store liquid. The liquid storage chamber 110 can be filled once in use. It can be understood that, in order to inject liquid into the liquid storage chamber 110, the liquid storage chamber 110 may be provided with a liquid inlet, or the liquid storage chamber 110 may be set to A cylindrical structure that does not include a top cover. As for the shape and volume of the reservoir 110, those skilled in the art can set the shape and model of the medical device (e.g., ventilation therapy device, medical humidifier, etc.) using the same.

The humidifying chamber 120 is provided with an air inlet 121 and an air outlet 122. When the humidifying device 100 is used in a ventilating treatment device, the air inlet 121 is for connection with an air outlet of a main body of the ventilation treatment device, and the air outlet 122 is for connection with an air inlet of the patient contacting member. In this case, in order to avoid gas loss caused by leakage of the breathable gas from the humidification chamber 120, the humidification chamber 120 desirably should be a sealed structure, and the gas available for exhalation can only enter from the air inlet 121, and from The air outlet 122 is output. When the humidifying device 100 is used in a medical humidifier, the air inlet 121 and the air outlet 122 may be the same vent, and the vent is used to discharge a mist formed by agglomeration of steam or steam, and may also be introduced through the vent. Air to balance the pressure inside and outside.

The humidification chamber 120 is provided with a vaporization device 140 for vaporizing the liquid in the humidification chamber 120. When the humidifying device 100 is used in a ventilation therapy device, the breathable gas from the host passes through the humidification chamber 120 and carries a certain amount of steam, which is then supplied to the patient contacting component to provide the patient with a moist breathable gas. Improve the comfort of use. When the humidifying device 100 is used in a medical humidifier, the liquid in the humidifier 120 is discharged into the environment in the form of a mist formed by the accumulation of steam or steam to ensure that the environment in which the patient is located has an appropriate humidity. The vaporization device 140 may be a thermal evaporation vaporization device, an immersion electrode vaporization device, or an ultrasonic vaporization device, etc., as long as the liquid in the humidification chamber 120 can be vaporized.

The communication device 130 is connected to the liquid storage chamber 110 and the humidification chamber 120 for supplying the liquid stored in the liquid storage chamber 110 to the humidification chamber 120. As an example, the communication device 130 may be a communication conduit, one end of which is connected to the liquid storage chamber 110, and the other end is connected to the humidification chamber 120, so that the liquid storage chamber 110 is inside. The liquid is gradually supplied to the humidification chamber 120. When the use is started, the liquid storage chamber 110 can be filled once, and then the liquid in the liquid storage chamber 110 is continuously supplied to the humidification chamber 120 through the communication device 130. Thus, the vaporizer 140 only works on the liquid in the humidification chamber 120. Taking the thermal evaporation type vaporization apparatus as an example, the vaporization apparatus 140 does not need to heat all the liquid in the liquid storage chamber 110 at a time, but only heats a small amount of liquid which is sent to the humidification chamber 120, thereby avoiding energy waste.

The humidifying device 100 is configured such that when the liquid in the humidifying chamber 120 reaches a predetermined amount, the liquid storage chamber 110 stops supplying liquid to the humidifying chamber 120 to avoid excessive liquid in the humidifying chamber 120, resulting in an increase in energy consumption, and also preventing The amount of liquid entering the humidification chamber 120 is too large to cause escape. As an example, the liquid flow rate that the communication device 130 can provide (eg, the minimum cross-sectional dimension of the communication device 130 can be designed), the power of the vaporization device 140, the contact area of the vaporization device 140 with the humidification chamber 120, and the volume of the vaporization device can be reasonably designed. Etc., so that the rate at which liquid enters the humidification chamber 120 can match the vaporization rate.

According to an aspect of the invention, the liquid inlet port 111 may be provided in the liquid storage chamber 110, and a sealing cover (not shown) covering the liquid inlet port 111 may be further provided on the liquid inlet port 111. When the sealing cover is overlaid on the liquid inlet 111, the inside of the liquid storage chamber 110 is formed as a relatively sealed space. Thus, the liquid delivery can be automatically accomplished by the internal pressure change of the reservoir 110 and the humidification chamber 120, and the volume of the liquid in the humidification chamber 120 is maintained no more than a predetermined amount.

Specifically, first, after the liquid is injected into the liquid storage chamber 110 from the liquid inlet port 111, the sealing cover is covered so that the liquid storage chamber 110 becomes a relatively closed cavity. At this time, since the liquid level in the liquid storage chamber 110 is high, the liquid automatically flows into the humidification chamber 120 through the communication device 130. Since the liquid storage chamber 110 is sealed above the liquid level, as the liquid flows into the humidification chamber 120, the pressure in the space above the liquid level becomes lower and lower, and the liquid storage chamber 110 and the humidification chamber 120 are inside. The liquid level difference is also getting smaller and smaller.

According to Pl+Phl=P2+Ph2

Wherein P1 is the pressure in the space above the liquid level in the liquid storage chamber 110, Phi is the pressure of the liquid in the liquid storage chamber 110, P2 is the pressure in the space above the liquid level in the humidification chamber 120, is approximately equal to the atmospheric pressure, and Ph2 is humidification. The pressure of the liquid in chamber 120.

When the opening of the communication device 130 in the liquid storage chamber 110 and the humidification chamber 120 is completely sealed, and the liquid flowing into the humidification chamber 120 reaches a predetermined amount, the pressure in the liquid storage chamber 110 and the humidification chamber 120 reaches the above balance, and the liquid stops. flow. This enables the liquid in the humidification chamber 120 to reach a predetermined amount. The reservoir 110 stops supplying liquid to the humidification chamber 120.

As the liquid in the humidification chamber 120 is continuously vaporized, the above balance is broken, so that the liquid also flows into the humidification chamber 120 to ensure the normal operation of the humidification apparatus 100. It should be understood that since the liquid in the humidification chamber 120 is continuously vaporized, and there is a steady flow of gas for breathing into and out of the humidification chamber 120, and also affected by the breathing of the patient, the gas pressure in the humidification chamber 120 P2 is actually a change value, and the balance between the reservoir 110 and the humidification chamber 120 is also a dynamic balance. It should be noted here that as the amount of liquid in the liquid storage chamber 110 is continuously reduced, the pressure P1 in the space above the liquid level in the liquid storage chamber 110 and the pressure PM of the liquid also decrease, when they are reduced to When it is insufficient to push the liquid into the humidification chamber 120, since the vaporization device 140 continuously vaporizes the liquid in the humidification chamber 120, once the liquid level of the liquid in the humidification chamber 120 is lower than the opening of the communication device 130 in the humidification chamber 120, The gas in the humidification chamber 120 enters the reservoir 110 through the communication device 140. Thus, the pressure in the reservoir 110 is replenished, and the liquid in the reservoir 110 continues to flow into the humidification chamber 120. Further, the process is repeated repeatedly when the liquid in the liquid storage chamber 110 is less than a certain amount until the space above the liquid level in the liquid storage chamber 110 communicates with the space above the liquid level in the humidification chamber 120 through the communication means 130.

In order to minimize the residual liquid in the liquid storage chamber 110 and to minimize the above predetermined amount so that the amount of liquid heated at one time is small and energy is saved, preferably, the communication device 130 may be connected to the lower side of the side wall of the liquid storage chamber 110. And between the lower side walls of the humidification chamber 120. Specifically, the communication device 130 may be disposed adjacent to the bottom edge of the side wall of the liquid storage chamber 110 and the humidification chamber 120, and may of course be disposed at a distance from the bottom edge of the side wall of the liquid storage chamber 110 and the humidification chamber 120 as shown in FIG. A person skilled in the art can provide a specific position where the communication device 130 is connected to the lower portion of the side wall of the liquid storage chamber 110 and the lower portion of the side wall of the humidification chamber 120 as needed. Further, since the amount of predetermined liquid that can stay in the humidification chamber 120 is small, it is also possible to prevent the liquid from flowing back from the intake port 121 of the humidification chamber 120 into the main body.

Further preferably, as shown in Fig. 3A, the liquid inlet port 311 is provided at the bottom of the liquid storage chamber 310. Thus, since the opening of the liquid inlet 311 and the communication means (not shown) in the liquid storage chamber 310 are both disposed at the bottom of the liquid storage chamber 310, when the liquid storage chamber 310 is inverted to inject liquid into the liquid storage chamber 310, Liquid can be prevented from flowing from the reservoir 310 into the humidification chamber 320. That is, only when the humidifying device 310 is placed upright, the liquid starts to flow from the liquid storage chamber 310 into the humidifying chamber 320 to realize the function of automatic opening.

In addition, as shown in FIGS. 3B-3C, the liquid inlet 311 may also be disposed in the liquid storage chamber 310. The top of the side of the communication device 330 is connected. 3B shows the humidifying device in use, FIG. 3C shows the humidifying device in a liquid injecting state, and in FIGS. 3B-3C, the liquid storage chamber 310 and the humidifying chamber 320 share the same side wall and the communication device 330 is disposed on the side wall. The through hole is taken as an example to illustrate the principle. Of course, the reservoir 310, the humidification chamber 320, and the communication device 330 can also be in other arrangements. Since the liquid inlet 311 and the communication device 330 are disposed on the same side wall of the liquid storage chamber 310, the humidification device can be rotated by 90 degrees when the liquid is injected into the liquid storage chamber 310, so that the liquid inlet port 311 and the communication device 330 are located. The top (as shown in Fig. 3C) avoids the flow of liquid from the reservoir 310 into the humidification chamber 320 during the injection of liquid. Only when the humidifying device 110 is rotated 90 degrees in the reverse direction and placed upright (as shown in FIG. 3B), the liquid starts to flow from the liquid storage chamber 310 into the humidifying chamber 320 to realize the function of automatic opening. It should be noted that the side wall of the liquid storage chamber 310 provided with the liquid inlet 311 and the communication device 330 may be a stepped shape as shown in FIGS. 3B-3C, or may be a flat structure without a step.

Further, with continued reference to FIG. 1, the liquid can also be passively transported from the reservoir 110 to the humidification chamber 120 by an external device, and the reservoir 110 is stopped by controlling the external device to bring the liquid in the humidification chamber 120 to a predetermined amount. The humidification chamber 120 is supplied with a liquid. As an example, a pump can be provided on the communication device for controlling the flow rate of liquid from the reservoir 110 to the humidification chamber 120. As an example, the pumping tube of the pump can be connected to the reservoir 110, and the liquid supply tube can be connected to the humidification chamber 120. At this time, an opening provided in the reservoir 110 and the humidification chamber 120 for communicating the inlet and outlet tubes can be understood as the communication means 130. Here, the flow rate of the liquid can be controlled by controlling the power of the pump. Of course, it is also possible to provide a sensor for detecting the liquid level or amount of liquid in the humidification chamber 120 and sending a detection signal to the pump. The pump can change its power based on the detection signal, which in turn changes the flow rate of the liquid.

Further, the humidifying device 110 further includes a switching device (not shown) for opening and closing the communication device 130 so as to start or shut off the liquid flowing into the humidifying chamber 120 at any time. The switching device can be implemented in different ways as long as the opening and closing of the communication device 130 can be controlled. The selection and design of the switching device can be designed based on the position and configuration of the communication device 130. In accordance with an embodiment of the present invention, as shown in FIG. 2, the switching device can include a valve 210, a linkage rod 220, and a handle (not shown). The valve 210 is used to close the opening of the communication device 130 within the reservoir 110 and/or the opening within the humidification chamber 120. One end of the linkage rod 220 is coupled to the valve 210 and the other end is coupled to the handle. By rotating the handle, the linkage lever 220 can be moved up and down. When the linkage rod 220 is lowered to the lowest position, the valve 210 closes the opening of the communication device 130, the communication device 130 is closed, and the liquid storage is closed. The chamber 110 and the humidification chamber 120 form separate spaces, respectively. Of course, the switching device can also have other structures. For example, when the liquid storage chamber 110 and the humidification chamber 120 are disposed at a certain distance apart, the switching device can be disposed as a rotary valve in the middle of the communication device 130.

As shown in Figures 4A-4B, a schematic representation of a humidification device in accordance with a preferred embodiment of the present invention is provided. In order to prevent the vaporization process in the humidification chamber 420 and the noise generated during the flow of the gas and liquid from affecting the patient, preferably, the humidification chamber 420 may be disposed in the middle of the reservoir 410, that is, the reservoir 410 surrounds the humidification chamber 420. Since the humidification chamber 420 is isolated from the outside by the liquid storage chamber 410, the noise transmission can be effectively reduced.

Preferably, as shown in FIGS. 4A-4B, the liquid storage chamber 410 and the humidification chamber 420 may have a common side wall 401, that is, the liquid storage chamber 410 of the humidification device 400 and the humidification chamber 420 are adjacent and integrally designed to be minimized. The size of the small humidification device 400. Further, the communication means (not shown) may be a through hole provided in the common side wall 401, so that the present invention provides the humidification apparatus 400 with a compact structure, a minimum number of parts, and a cost. It should be noted that the through holes may be of any shape, which may be circular, rectangular, irregular, or the like. When the through hole is rectangular, it may extend in the width direction of the side wall, i.e., a slit extending along the width of the side wall is formed at the bottom of the common side wall 401. When the common side wall 401 is an annular shape as shown in Fig. 4A, the through holes may be distributed along the annular common side wall 401, or may be an annular slit extending in the circumferential direction of the common side wall 401. It can be seen that the through hole can have any structure and shape as long as its function can be realized.

Further, as shown in Fig. 4B, the bottom surface of the humidifying chamber 420 may protrude inwardly to form a groove having an opening downward in the bottom surface of the humidifying chamber 420. This not only allows the vaporizer 440 to be placed in the recess formed inwardly recessed, but also increases the contact area of the vaporizer 440 with the humidification chamber 420 to increase the efficiency of vaporization. In addition, when the size of the humidification chamber 420 is constant, it is also possible to reduce the amount of liquid (ie, the predetermined amount mentioned above) that can stay in the humidification chamber 420 while maintaining the liquid level height constant. The amount of liquid that each vaporizer 340 performs on it is reduced, reducing energy consumption. Further, the opening of the communication device 440 connecting the liquid storage chamber 410 and the upper end of the opening connecting the humidification chamber 420 are both higher than the bottom surface of the humidification chamber 420 to ensure that the bottom surface of the humidification chamber 320 can be completely covered by the liquid to improve the vaporization device 440. effectiveness.

Further, as shown in FIG. 4B, the air inlet 401 of the humidification chamber 420 may include an extension duct 402 that projects into the interior of the humidification chamber 420, and extends into the conduit 402 without contacting the liquid in the humidification chamber 402. The extension duct 402 at the air inlet 401 can be as long as possible but does not contact the liquid inside the humidification chamber 402. This can further prevent the liquid from flowing back from the air inlet 401 when the humidifying device 400 is tilted, thereby protecting the device from damage.

The present invention also provides a ventilation therapy apparatus comprising a main body and a humidification device as described above. The host computer can have a host structure commonly used in the art as long as it provides a positive pressure for the breathing gas. The air outlet of the main engine is connected to the air inlet of the humidifying room of the humidifying device, so that the breathing gas sent by the main body can be humidified and used by the patient, thereby improving the comfort of use.

In summary, the humidification device provided by the present invention always works for a small portion of the liquid during the humidification process, thereby saving power consumption, avoiding waste, and accelerating the steam generation rate as compared with the existing humidification device. And because the amount of liquid in the humidification chamber is small, the risk of backflow of the liquid is reduced. Further, the liquid storage chamber and the humidification chamber of the present invention are separated, and the highest liquid level that can be used in the liquid storage chamber is the highest liquid level of the liquid storage chamber, thereby increasing the utilization space of the liquid storage chamber.

The present invention also provides a drug sprayer. As shown in Fig. 5, the drug sprayer 500 includes a reservoir 510, a humidification chamber 520, a communication device 530, and an atomization device 540. The reservoir 510 is used to store a liquid containing the medications required by the patient. The humidifying chamber 520 is provided with a vent port similar to the humidifying device for a medical humidifier described above, and the air inlet 121 and the air outlet 122 in Fig. 1 are combined into the same vent 521. The communication device 530 is connected to the liquid chamber 510 and the humidification chamber 520 for supplying the liquid in the reservoir 510 to the humidification chamber 520. The atomizing device 540 is used to atomize the liquid in the humidifying chamber 520. Here, the drug sprayer 500 is configured such that the liquid storage chamber 510 stops supplying the liquid to the humidifying chamber 520 when the liquid in the humidifying chamber 520 reaches a predetermined amount. When starting to use, the liquid storage chamber 510 can be filled once, and then the liquid in the liquid storage chamber 510 is continuously supplied to the humidification chamber 520 through the communication device 530. Thus, the atomization device 540 works only on the liquid in the humidification chamber 520. In order to avoid energy waste.

Preferably, the liquid storage chamber 510 is provided with a liquid inlet 511 and a sealing cover (not shown) that can cover the liquid inlet 511 to seal the liquid storage chamber 510. Preferably, the communication means 530 is connected between the lower portion of the side wall of the reservoir 510 and the lower portion of the side wall of the humidification chamber 520. Preferably, the inlet port is provided at the bottom of the reservoir. Preferably, the liquid inlet is provided at the top of the side of the reservoir provided with the communication means. Preferably, the communication device is provided with a pump for controlling the flow rate of the liquid from the reservoir to the humidification chamber. Preferably, the drug sprayer further comprises a switching device for opening and closing the communication device. Preferably, the reservoir surrounds the humidification chamber. Preferably, the reservoir and the humidification chamber have a common side wall. Enter Preferably, the communication means is a through hole provided in the common side wall. Preferably, the bottom surface of the humidifying chamber protrudes inwardly to form an opening downwardly in the bottom surface of the humidifying chamber. Preferably, the opening of the communication device connecting the reservoir and the upper end of the opening connecting the humidification chamber are both higher than the bottom surface of the humidification chamber. Preferably, the atomizing device is disposed within the recess. As an example, the atomizing device may be an ultrasonic atomizing device. Of course, the atomizing device may also be various atomizing devices commonly used in the art. Preferably, the inlet of the humidification chamber includes an extension conduit extending into the interior of the humidification chamber and extending into the conduit without contacting the liquid in the humidification chamber.

It should be noted that the components of the drug sprayer provided by the present invention other than the atomization device are substantially the same as those of the humidification device provided above, and therefore, the liquid storage chamber, the humidification chamber and the communication device of the drug sprayer are no longer used. Carry out a detailed description. It will be understood by those skilled in the art that the above description of the humidifying device and the drawings are applicable to a drug sprayer.

The drug sprayer provided by the present invention always heats a small portion of the liquid during use, thereby saving power consumption, avoiding waste, and accelerating the rate of mist generation as compared with the existing drug atomizer.

The present invention has been described by the above-described embodiments, but it should be understood that the above-described embodiments are only for the purpose of illustration and description, and are not intended to limit the invention. Further, those skilled in the art can understand that the present invention is not limited to the above embodiments, and various modifications and changes can be made according to the teachings of the present invention. These modifications and modifications are all claimed in the present invention. Within the scope. The scope of the invention is defined by the appended claims and their equivalents.

Claims

Rights request

1. A humidification equipment, characterized in that, the humidification equipment includes:

A liquid storage chamber, the liquid storage chamber is used to store liquid;

A humidification chamber, the humidification chamber is provided with an air inlet and an air outlet;

A communication device, the communication device connects the liquid storage chamber and the humidification chamber, and is used to provide the liquid in the liquid storage chamber to the humidification chamber; and

A vaporization device, the vaporization device is used to vaporize the liquid in the humidification chamber,

Wherein, the humidification device is configured such that the liquid storage chamber stops providing liquid to the humidification chamber when the liquid in the humidification chamber reaches a predetermined amount.

2. The humidification equipment according to claim 1, characterized in that the liquid storage chamber is provided with a liquid inlet and a sealing cover that can cover the liquid inlet to seal the liquid storage chamber.

3. The humidification equipment according to claim 2, characterized in that the communication device is connected between the lower part of the side wall of the liquid storage chamber and the lower part of the side wall of the humidification chamber.

4. The humidification equipment according to claim 3, characterized in that the liquid inlet is provided at the bottom of the liquid storage chamber.

5. The humidification equipment according to claim 3, characterized in that the liquid inlet is provided at the top of the side of the liquid storage chamber where the communication device is provided.

6. The humidification equipment according to claim 1, characterized in that a pump is provided on the communication device, and the pump is used to control the flow rate of liquid from the liquid storage chamber to the humidification chamber.

7. The humidification equipment according to claim 1, characterized in that the humidification equipment further includes a switch device, the switch device is used to open and close the communication device.

8. The humidification equipment according to claim 1, characterized in that the liquid storage chamber surrounds the humidification chamber.

9. The humidification equipment according to claim 1, characterized in that the liquid storage chamber and the humidification chamber have a common side wall.

10. The humidification equipment according to claim 9, characterized in that the communication device is a through hole provided on the common side wall.

11. The humidification equipment according to claim 1, wherein the bottom surface of the humidification chamber protrudes inward to form a groove opening downward on the bottom surface of the humidification chamber.

12. The humidification equipment according to claim 11, characterized in that, the upper end of the opening of the communication device connected to the liquid storage chamber and the opening connected to the humidification chamber are both higher than the bottom surface of the humidification chamber.

13. The humidification equipment according to claim 11, characterized in that the vaporization device is arranged in the groove.

14. The humidification equipment according to claim 1, wherein the air inlet of the humidification chamber includes an extending conduit extending into the interior of the humidifying chamber, and the extending conduit does not contact the humidifying chamber. Humidify liquids in the room.

15. The humidification equipment according to claim 1, characterized in that the humidification equipment is a humidification equipment used for ventilation treatment equipment.

16. A ventilation treatment device, characterized in that: the ventilation treatment device includes a host and the humidification device according to any one of claims 1 to 15, and the air outlet of the host and the humidification device are Humidification chamber air inlet connection.