CN220385571U - Integrated respirator - Google Patents

Abstract

The utility model is applicable to the technical field of respirators, and provides an integrated respirator, which comprises: the main body assembly is provided with a first air inlet; the fan assembly comprises a fan, the fan assembly is arranged in a fan chamber in the main body assembly, the fan chamber is provided with a second air inlet, the second air inlet is communicated with the first air inlet through a pipeline, a flow equalization piece is arranged between the second air inlet and the first air inlet, the fan is provided with a third air inlet, a plurality of guide plates for equally dividing air flow are arranged at the third air inlet, the fan is provided with a first air outlet, and the first air outlet is communicated with a fourth air inlet arranged on the humidifying assembly; the humidifying assembly comprises a humidifying water tank and a heating module, wherein a fourth air inlet and a second air outlet are formed in the humidifying water tank, and a reflecting plate is arranged in the humidifying water tank. The whole air flue is simpler and shorter, the noise is reduced, and the breathing machine has the effects of low power consumption and silence.

Description

Integrated respirator

Technical Field

The utility model belongs to the technical field of respirators, and particularly relates to an integrated respirator.

Background

The breathing machine is a device which can replace, control or change normal physiological breathing of people, increase lung ventilation, improve respiratory function, reduce respiratory function consumption and save heart reserve capacity. The working principle of the breathing machine is an artificial mechanical ventilation device which is used for assisting or controlling spontaneous breathing movement of a patient so as to achieve the function of gas exchange in the lung, reduce the consumption of a human body and facilitate the recovery of respiratory function.

The integrated ventilator needs to provide stable and continuous airflow for users, and generally has an air inlet and an air outlet, and an air blower is generally used to extract air from the air inlet, humidify the extracted air through a humidification tank, and output the humidified air from the air outlet, so as to output stable airflow. A user usually uses a breathing machine to assist breathing during sleeping at night, so that the requirement on the silencing effect of the breathing machine is high.

In the prior art, in order to realize a better silencing effect of a breathing machine, an air passage of air in the breathing machine is designed generally, vibration of air flow is eliminated through a longer and more tortuous air passage, and noise is absorbed through a sound insulation material.

The air passage in the breathing machine in the prior art is complex, the impedance is high, and the power consumption of the fan is increased.

Disclosure of Invention

The embodiment of the utility model aims to provide an integrated breathing machine and aims to solve the problems that an air passage in the breathing machine in the prior art is complex and high in impedance.

The embodiment of the utility model is realized in that the breathing machine comprises:

the main body assembly is provided with a first air inlet;

the fan assembly comprises a fan, the fan assembly is arranged in a fan chamber in the main body assembly, the fan chamber is provided with a second air inlet, the second air inlet is communicated with the first air inlet through a pipeline, a flow equalization piece is arranged between the second air inlet and the first air inlet, the fan is provided with a third air inlet, a plurality of guide plates for equally dividing air flow are arranged at the third air inlet, the fan is provided with a first air outlet, and the first air outlet is communicated with a fourth air inlet arranged on the humidifying assembly;

the humidifying assembly comprises a humidifying water tank and a heating module, wherein a fourth air inlet and a second air outlet are formed in the humidifying water tank, and a reflecting plate is arranged in the humidifying water tank and used for reflecting air flow entering the humidifying water tank and outputting the air flow through the second air outlet.

The integral type breathing machine provided by the embodiment of the utility model is provided with the relatively simple air passage, so that the distance of the air passage is short, the impedance is low, and the air passage of the air inlet of the fan assembly is optimized by arranging the flow equalizing piece, so that the air inlet of the fan is more uniform, the stress of the fan blades is more uniform, and the noise is reduced from the noise source; through optimizing the humidifying assembly, the air flow is subjected to noise reduction in the humidifying water tank under the function of guaranteeing humidification; the utility model discloses a noise reduction in the time of guaranteeing comparatively succinct, short air flue wholly, integrated respirator has low-power consumption, silence's effect.

Drawings

FIG. 1 is a cross-sectional view of an integrated ventilator according to an embodiment of the present utility model;

FIG. 2 is a cross-sectional view of an integrated ventilator according to another embodiment of the present utility model;

FIG. 3 is a schematic view of a blower chamber of an integrated ventilator according to an embodiment of the present utility model;

FIG. 4 is a schematic view of a blower chamber of an integrated ventilator according to another embodiment of the present utility model;

FIG. 5 is a schematic diagram of a blower assembly according to an embodiment of the present utility model;

fig. 6 is a schematic diagram of a humidification water tank according to an embodiment of the present utility model.

In the accompanying drawings: 100. a body assembly; 101. a first air inlet; 102. a fan chamber; 103. a water tank chamber; 104. a flow equalizer; 105. an air inlet grille, 106, a buffer tube; 107. a communicating pipe; 108. an adapter; 200. a fan assembly; 210. A blower; 211. a third air inlet; 212. a first air outlet; 213. a driving module; 220. a deflector; 230. a bin body; 240. a bin cover; 241. a second air inlet; 250. a first heat dissipation plate; 260. an air flow channel; 270. a second heat dissipation plate; 280. a noise reduction sleeve; 281. a fixing part; 282. a first opening; 300. a humidification assembly; 310. humidifying the water tank; 311. a fourth air inlet; 312. a second air outlet; 313. a reflection plate; 314 inlet duct; 315. a case cover; 316. a case; 317. a heat conduction plate; 320. and a heating module.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Specific implementations of the utility model are described in detail below in connection with specific embodiments.

As shown in fig. 1, a structure diagram of an integrated ventilator according to an embodiment of the present utility model includes:

a main body assembly 100, wherein a first air inlet 101 is formed in the main body assembly 100;

the fan assembly 200 comprises a fan 210, the fan assembly 200 is arranged in a fan 210 chamber 102 in the main body assembly 100, a second air inlet 241 of the fan 210 chamber 102 is communicated with the first air inlet 101 through a pipeline, a flow equalization piece 104 is arranged between the second air inlet 241 and the first air inlet 101, a plurality of guide plates 220 for equally dividing air flow are arranged at a third air inlet 211 of the fan 210, and a first air outlet 212 of the fan 210 is communicated with a fourth air inlet 311 of the humidifying assembly 300;

the humidifying assembly 300 comprises a humidifying water tank 310 and a heating module 320, wherein a fourth air inlet 311 and a second air outlet 312 are arranged on the humidifying water tank 310, a reflecting plate 313 is arranged in the humidifying water tank 310, and the reflecting plate 313 is used for reflecting air flow entering the humidifying water tank 310 and outputting the air flow from the second air outlet 312.

In the embodiment of the present utility model, the main body assembly 100 is a main body structure of an integrated breathing machine and a connection structure between functional assemblies, the main body assembly 100 mainly includes a casing of the breathing machine, the casing may be formed by splicing different shells, and the shell may be a plastic shell. The main body assembly 100 is provided with a first air inlet 101 for sucking air from the environment; the integrated ventilator may be horizontal, and the first air inlet 101 may be formed in an upper portion of the integrated ventilator.

In the embodiment of the present utility model, the fan assembly 200 is used as an air source to draw air from the first air inlet 101; the fan assembly 200 is arranged in the fan 210 chamber 102, the fan 210 chamber 102 can be separated from the main body assembly 100 by a plate-shaped member into a relatively independent space, a second air inlet 241 is arranged on the fan 210 chamber 102, the second air inlet 241 is connected with the first air inlet 101 through a pipeline, and air enters the fan 210 chamber 102 from the second air inlet 241 and is extracted by the fan 210; the blower 210 chamber 102 needs to be sealed so that air entering the blower 210 chamber 102 only directly enters the blower 210. The blower assembly 200 includes at least a blower 210 and may further include a connector for securing the blower 210 within the blower 210 compartment 102, not specifically limited herein; the fan 210 is provided with a third air inlet 211 and a first air outlet 212, the third air inlet 211 of the fan 210 directly extracts air from the interior of the fan 210 chamber 102, and the air is output to the subsequent humidifying assembly 300 through the first air outlet 212; the third air inlet 211 of the blower 210 is used for sucking air from all places in the chamber 102 of the blower 210, the air inlet of the blower 210 is usually positioned on the side surface of the blower 210, the space in the chamber 102 of the blower 210 is irregular, so that the air flow entering the third air inlet 211 is also uneven, a plurality of guide plates 220 are arranged at the third air inlet 211, and the guide plates 220 can be fixed on the side surface of the blower 210 or can be independent components attached at the air inlet; the plurality of guide plates 220 can equally divide the air flow at the third air inlet 211, so that the air flow entering the third air inlet 211 is uniform, the blades of the fan 210 are stressed more uniformly and stably during operation, and noise caused by uneven pressure of different blades due to turbulence of the air flow at the air inlet is prevented.

In the embodiment of the present utility model, a flow equalization member 104 is disposed between the second air inlet 241 and the first air inlet 101, and the flow equalization member 104 rectifies the air just entering the oxygenerator from the first air inlet 101 through uniformly opened holes; the flow of the rectified air is more uniform, so that the pressure of the air flow in the pipeline is more stable, and the silencing effect can be achieved to a certain extent.

In the embodiment of the present utility model, the humidifying component 300 is used for humidifying the airflow output by the fan 210, which is more beneficial for the user to breathe. A fourth air inlet 311 and a second air outlet 312 which are arranged on the humidifying water tank 310, wherein the fourth air inlet 311 can be arranged on the side surface of the humidifying water tank 310, and the second air inlet 241 can be arranged on the top surface of the humidifying water tank 310; air enters the humidifying water tank 310 through the fourth air inlet 311, is humidified and then is output through the second air outlet 312; the humidifying water tank 310 generally needs to be added with water or changed with water, the humidifying water tank 310 can be arranged in the water tank chamber 103, and the water tank chamber 103 can be a semi-open area surrounded by the main body assembly 100; the humidifying water tank 310 is detachably connected, preferably inserted, to the main body assembly 100, so as to facilitate water adding or changing, and the second air outlet 312 is upwardly arranged when the humidifying water tank 310 is mounted on the main body assembly 100. The humidifying water tank 310 is internally provided with a reflecting plate 313, the reflecting plate 313 can face the fourth air inlet 311, air flows to the reflecting plate 313 after entering the humidifying water tank 310 from the fourth air inlet 311, the reflecting plate 313 breaks up the air flow, mixes and humidifies the air flow with water vapor, and then the air is discharged from the second air outlet 312; the arrangement of the humidifying water tank 310 makes the air passage of the air flow in the humidifying water tank 310 short, has small impedance, and has silencing effect under the condition of guaranteeing the humidifying function. The heating module 320 is used for heating the water in the humidifying water tank 310 to evaporate the water to humidify the air; the heating module 320 is located inside the body assembly 100 and heats the humidification water tank 310 by being attached to the bottom of the humidification water tank 310.

In the embodiment of the utility model, the air passage is arranged in a relatively simple way, so that the distance of the air passage is short, the impedance is low, and the air passage of the air inlet of the fan assembly 200 is optimized by arranging the flow equalization piece 104, so that the air inlet of the fan 210 is more uniform, the stress of the fan blades is more uniform, and the noise is reduced from the noise source; through optimization of the humidifying assembly 300, the air flow is subjected to noise reduction in the humidifying water tank 310 under the function of guaranteeing humidification; the utility model discloses a noise reduction in the time of guaranteeing comparatively succinct, short air flue wholly, integrated respirator has low-power consumption, silence's effect.

As shown in fig. 2, as a preferred embodiment of the present utility model, an air inlet grille 105 is disposed at the first air inlet 101, and a buffer tube 106 is disposed between the first air inlet 101 and the flow equalization member 104. The air intake grill 105 can filter and reduce noise of the air from the first air intake port 101; the buffer tube 106 is made of flexible material, and has the effects of vibration reduction and noise reduction on vibration and impact of the pipeline.

As shown in fig. 3, as a preferred embodiment of the present utility model, the fan 210 chamber 102 is disposed in a sealed manner, the fan 210 chamber 102 includes a bin body 230 and a bin cover 240, the bin body 230 is connected with the bin cover 240 in a sealing manner, the second air inlet 241 is disposed on the bin cover 240, and the second air inlet 241 faces the driving module 213 of the fan 210. In order to facilitate forming and installation, the bin body 230 can be fixedly connected with the main body assembly 100, the bin cover 240 is an independent component and is buckled on the bin body 230, and the bin cover 240 is connected with the bin body 230 through a sealing ring to realize sealing; the fan 210 is generally downward in the fan 210 chamber 102, the driving module 213 is upward, and correspondingly, the second air inlet 241 is correspondingly formed on the bin cover 240 at a position facing the driving module 213, and air flow enters the fan 210 chamber 102 from the second air inlet 241 to be blown to the driving module 213, so that a part of heat is taken away, and heat dissipation is assisted by the fan 210.

As shown in fig. 3, in one case, the second air inlet 241 is disposed on a side of the bin cover 240 corresponding to the first air outlet 212, a first heat dissipation plate 250 is further disposed in the fan 210 chamber 102, the first heat dissipation plate 250 is sleeved on the driving module 213 of the fan 210, and an air flow channel 260 is reserved between the first heat dissipation plate 250 and the bin wall of the fan 210 chamber 102, so that air flow entering the fan 210 chamber 102 from the second air inlet 241 enters the fan 210 after passing through the driving module 213. The first heat dissipation plate 250 is a separate plate-shaped member, and is mainly used for guiding the air flow, so that the air flow entering the fan 210 chamber 102 is forced to the driving module 213, flows downward from the air flow channel 260 after flowing through the driving module 213, and enters the third air inlet 211. The space between the first heat dissipation plate 250 and the top of the bin cover 240 is larger, the impedance is not increased significantly, and the heat dissipation effect of the whole air flowing through the driving module 213 is better.

As shown in fig. 4, in another case, the second air inlet 241 is opposite to the driving module 213, a second heat dissipation plate 270 is uniformly disposed in the circumferential direction at the second air inlet 241 in the cover 240, and the second heat dissipation plate 270 extends from the inner wall of the cover 240 toward the fan 210, and a buffer gap is left between the second heat dissipation plate 270 and the surface of the fan 210. The second air inlet 241 is opposite to the driving module 213, that is, the shaft of the driving module 213 is located at the center of the second air inlet 241, the second heat dissipation plate 270 circumferentially arranged at the second air inlet 241 in the bin cover 240 equally divides the space between the bin cover 240 and the fan 210 into a plurality of air passages, and air flows through the air passages and passes through the surface of the fan 210 to rectify the air flow entering the fan 210 chamber 102 while dissipating the heat of the heat dissipation module of the fan 210; the number of second heat dissipation plates 270 may be the same as the number of blades of the blower 210. The second heat dissipating plate 270 is close to the surface of the blower 210, but leaves a buffer gap, which provides a margin for vibration and sloshing when the blower 210 itself is running, preventing the blower 210 from striking the heat dissipating plate. The arrangement of the second air inlet 241 and the heat dissipation plate does not increase the air passage, i.e. the impedance is not increased, and the air flow splitting device has the effects of assisting the fan 210 in dissipating heat and splitting air flow.

As shown in fig. 5, as a preferred embodiment of the present utility model, the fan assembly 200 further includes: the noise reduction sleeve 280 is sleeved outside the fan 210 and detachably connected with the fan 210 chamber 102, the plurality of guide plates 220 are located beside the first opening 282 of the noise reduction sleeve 280, the plurality of guide plates 220 are used for equally dividing the periphery of the air inlet into a plurality of air channels, and the first opening 282 corresponds to the position of the third air inlet 211 of the fan 210. The noise reduction sleeve 280 may be a thin-walled member, and may be shaped to match the shape of the fan 210 so as to be sleeved outside the fan 210; the noise reduction sleeve 280 may be partially sleeved outside the fan 210, for example, sleeved on one side of the third air inlet 211; the noise reduction sleeve 280 is provided with a first opening 282, the position and the shape of which can correspond to the third air inlet 211 of the fan 210, and the first opening 282 can be circular, and the radius of the first opening 282 can be slightly larger than the radius of the third air inlet 211 after the noise reduction sleeve 280 is sleeved with the fan 210. The baffle 220 is located beside the first opening 282 on the noise reduction sleeve 280, and it is understood that the connection portion between the baffle 220 and the noise reduction sleeve 280 may not exceed the boundary of the first opening 282, but is not limited thereto; the plurality of baffles 220 are uniformly distributed to uniformly divide the air duct at the third air inlet 211.

In an embodiment, the number of the baffles 220 is the same as the number of the blades of the fan 210, the noise reduction sleeve 280 includes an air inlet surface and a side surface, the air inlet surface is located on the surface of the fan 210 where the third air inlet 211 is located, the first opening 282 is opened on the air inlet surface, the plurality of baffles 220 are located on the air inlet surface, the baffles 220 are formed by extending from the air inlet surface along the axial direction of the fan 210, the end portions of the plurality of baffles 220 formed by extending are flush, and the cross section of the baffle 220 perpendicular to the extending direction is involute. The shape and the number of the guide plates 220 are set according to the blades of the fan 210, so that the air flow enters the third air inlet 211 more uniformly and stably, the flow direction of the air flow is more adaptive to the rotation of the blades of the fan 210, the stress of the blades of the fan 210 is more uniform and stable during operation, the air flow is prevented from being disturbed at the third air inlet 211 to cause uneven pressure of different blades to generate noise, the noise at a noise source is eliminated, and the noise reduction effect is good.

In a further embodiment, the noise reduction sleeve 280 is provided with a fixing portion 281, and an inner wall of the chamber 102 of the fan 210 is provided with a clamping groove, and the fixing portion 281 is clamped with the clamping groove. The noise reduction sleeve 280 is fixed on the bin body 230 of the fan 210 chamber 102 through the fixing portion 281, the fan 210 is suspended in the fan 210 chamber 102, the noise reduction sleeve 280 can be made of silica gel, and the fixing portion 281 is used for buffering and damping the fan 210 when the fan 210 is started or braked.

As shown in fig. 6, as a preferred embodiment of the present utility model, a chamber for storing water and humidifying the incoming gas is formed in the humidifying water tank 310;

an air inlet channel 314 is arranged on the humidifying water tank 310, the air inlet end of the air inlet channel 314 is a fourth air inlet 311, the air inlet channel 314 is communicated with the outside of the humidifying water tank 310, and the air outlet end of the air inlet channel 314 extends into the cavity;

the second air outlet 312 is communicated with the external and internal cavities of the humidifying water tank 310;

the relative positions of the air inlet 314 and the second air outlet 312 are: the second air outlet 312 is located between the air inlet end and the air outlet end, so that the air entering the cavity from the air outlet end is turned back and flows out from the second air outlet 312;

the reflecting plate 313 is disposed opposite to the air outlet end, and is used for reflecting the air flowing out from the air outlet end.

In the embodiment of the utility model, the gas is led to the fourth air inlet 311 from the first air outlet 212, enters the humidifying water tank 310 from the fourth air inlet 311, flows in the humidifying water tank 310 and is mixed with water vapor, so that the humidifying effect of the gas is realized; the air inlet direction of the air inlet channel 314 is perpendicular to the air outlet direction of the air outlet; both the reflecting plate 313 and the air inlet 314 can be slightly inclined towards the water surface in the humidifying water tank 310, the condensed liquid beads in the air inlet 314 can be prevented from flowing back to the fan 210 at the front end by the slightly inclined air inlet 314, and the air flow blown by the air inlet 314 can be reflected and has a trend of flowing towards the water surface by the slightly inclined reflecting plate 313 and then is output by the second air outlet 312.

In a further embodiment, the humidifying water tank 310 includes a tank 316 and a tank cover 315, the tank cover 315 and the tank 316, the tank 316 is rotatably connected with the tank cover 315, a heat conducting plate 317 is disposed at the bottom of the tank 316, and the heat conducting plate 317 is used for heating water in the tank 316 in a manner of being attached to the heating module 320. The humidifying water tank 310 evaporates the water vapor by adopting the heating mode of the heating module 320, the bottom of the humidifying water tank 310 is connected with the heat conducting disc 317, and the heat conducting disc 317 is heated by the heating module 320 and transfers the heat to the inside of the humidifying water tank 310, and then the water body is heated.

As a preferred embodiment of the present utility model, the humidifying water tank 310 is communicated with the fan 210 through a communicating pipe 107 and an adapter 108, one end of the communicating pipe 107 is connected with the first air outlet 212 in a sealing manner, the other end is connected with one end of the adapter 108, and the other end of the adapter 108 is used for being in butt joint with a fourth air inlet 311. Communication pipe 107 and adapter 108 realize communication between first outlet 212 and fourth inlet 311, and adapter 108 is used for interfacing with fourth inlet 311, enabling humidification water tank 310 to be detachable.

In the above embodiment of the present utility model, an integrated ventilator is provided, which is provided with a relatively simple air passage, so that the distance of the air passage is short and the impedance is low, and by providing the flow equalization member 104, the air passage of the air inlet of the fan assembly 200 is optimized, so that the air inlet of the fan 210 is more uniform, the stress of the fan blades is more uniform, and the noise is reduced from the noise source; through optimization of the humidifying assembly 300, the air flow is subjected to noise reduction in the humidifying water tank 310 under the function of guaranteeing humidification; the integral ventilator has the advantages that the noise is reduced while the simpler and shorter air passage is ensured, and the integral ventilator has the effects of low power consumption and silence; the fan 210 is subjected to auxiliary heat dissipation by arranging the second air inlet 241 and matching with the first heat dissipation plate 250 or the second heat dissipation plate 270; through setting up the optimization of the cover 280 of making an uproar and humidifying water tank 310 inside reflecting plate 313, promote whole noise reduction effect.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims (10)

1. An integral ventilator, its characterized in that, the ventilator includes:

the main body assembly is provided with a first air inlet;

the fan assembly comprises a fan, the fan assembly is arranged in a fan chamber in the main body assembly, the fan chamber is provided with a second air inlet, the second air inlet is communicated with the first air inlet through a pipeline, a flow equalization piece is arranged between the second air inlet and the first air inlet, the fan is provided with a third air inlet, a plurality of guide plates for equally dividing air flow are arranged at the third air inlet, the fan is provided with a first air outlet, and the first air outlet is communicated with a fourth air inlet arranged on the humidifying assembly;

the humidifying assembly comprises a humidifying water tank and a heating module, wherein a fourth air inlet and a second air outlet are formed in the humidifying water tank, and a reflecting plate is arranged in the humidifying water tank and used for reflecting air flow entering the humidifying water tank and outputting the air flow through the second air outlet.

2. The ventilator of claim 1, wherein the first air inlet is provided with an air intake grille, and a buffer tube is provided between the first air inlet and the flow equalizer.

3. The ventilator of claim 1, wherein the blower chamber is configured to be sealed, the blower chamber comprises a housing and a housing cover, the housing is in sealing connection with the housing cover, the second air inlet is configured to be opened on the housing cover, and the second air inlet faces towards the driving module of the blower.

4. The respirator of claim 3, wherein the second air inlet is formed on one side of the bin cover corresponding to the first air outlet, a first heat dissipation plate is further arranged in the fan chamber, the first heat dissipation plate is sleeved on the driving module of the fan, and an air flow channel is reserved between the first heat dissipation plate and the bin wall of the fan chamber, so that air flow entering the fan chamber from the second air inlet enters the fan after passing through the driving module.

5. The respirator of claim 3, wherein the second air inlet is opposite to the driving module, and second heat dissipation plates are uniformly distributed in the circumferential direction at the second air inlet in the bin cover, extend from the inner wall of the bin cover to the blower, and form a buffer gap with the surface of the blower.

6. The ventilator of any of the preceding claims 1-5, wherein the blower assembly further comprises: the noise reduction sleeve is arranged outside the fan and detachably connected with the fan chamber, the plurality of guide plates are positioned beside the first opening of the noise reduction sleeve, the plurality of guide plates are used for equally dividing the periphery of the air inlet into a plurality of air channels, and the first opening corresponds to the position of the third air inlet of the fan.

7. The respirator of claim 6, wherein the number of the guide plates is the same as the number of blades of the fan, the noise reduction sleeve comprises an air inlet surface and a side surface, the air inlet surface is correspondingly positioned on the surface where the third air inlet of the fan is positioned, the first opening is formed in the air inlet surface, the guide plates are positioned on the air inlet surface and are formed by extending from the air inlet surface along the axial direction of the fan, the end parts of the guide plates formed by extending are flush, and the cross section of the guide plates perpendicular to the extending direction is involute.

8. The respirator of claim 7, wherein the noise reduction sleeve is provided with a fixing portion, the inner wall of the fan chamber is provided with a clamping groove, and the fixing portion is clamped with the clamping groove.

9. The ventilator of any of claims 1-5, wherein a chamber is formed within the humidification water tank, the chamber configured to store water and humidify incoming gases;

an air inlet channel is arranged on the humidifying water tank, the air inlet end of the air inlet channel is a fourth air inlet, the air inlet channel is communicated with the outside of the humidifying water tank, and the air outlet end of the air inlet channel extends into the cavity;

the second air outlet is communicated with the outer cavity and the inner cavity of the humidifying water tank;

the relative positions of the air inlet channel and the second air outlet are as follows: the second air outlet is positioned between the air inlet end and the air outlet end, so that the air entering the cavity from the air outlet end is turned back and flows out from the second air outlet;

the reflecting plate is arranged opposite to the air outlet end and used for reflecting air flowing out of the air outlet end.

10. The ventilator of claim 9, wherein the humidification water tank comprises a tank body and a tank cover, the tank cover and the tank body, the tank body is rotatably connected with the tank cover, a heat conducting disc is arranged at the bottom of the tank body and is used for being attached to the heating module to heat water in the tank body.