Ventilation therapy apparatus and humidification device therefor

Abstract

The utility model relates to ventilation equipment technical field discloses a ventilation treatment equipment and humidification device thereof, the humidification device includes the casing, and the casing has the gas inlet and outlet cavity and humidification cavity, and the gas inlet and outlet cavity includes the first gas inlet cavity and the first gas outlet cavity that isolate each other, and the casing still includes the gas inlet pipe that communicates with the first gas inlet cavity and the gas outlet pipe that communicates with the first gas outlet cavity, wherein, the cross section area of gas inlet pipe is less than the cross section area of the first gas inlet cavity, and the cross section area of gas outlet pipe is less than the cross section area of the first gas outlet cavity. Dry gas first enters the first gas inlet cavity from the gas inlet pipe, and then enters the humidification cavity from the first gas inlet cavity, and wet gas first enters the first gas outlet cavity from the humidification cavity, and then passes through the gas outlet pipe and exports from the first gas outlet cavity, and the dry gas and wet gas all change the size of the flow area when entering and exiting, and the gas sound waves collide and cancel each other during the change of the flow area, which can produce a good noise reduction effect, reduce the noise of the humidification device, and improve the user experience.

Description

Technical Field

[0001] This utility model relates to the field of ventilation equipment technology, specifically to a ventilation therapy device and its humidification device. Background Technology

[0002] Ventilation therapy equipment is a device that assists in respiratory therapy. Breathing gas is supplied to the user through a breathing tube. Most existing ventilation therapy equipment outputs humidified gas, which means that the breathing gas is heated and humidified before being delivered to the user so that the user can have a good breathing experience.

[0003] The generation of humid gas necessitates a humidification device, which contains a humidification chamber to transform dry gas into humid gas. Currently, the inlet and outlet pipes of the humidification device are directly connected to the humidifier chamber, and the gas entering and exiting the humidification device is pressurized gas with a relatively high flow rate. This back-and-forth flow of gas to and from the outside and inside of the humidification device generates noise, affecting the user experience. Utility Model Content

[0004] The purpose of this invention is to overcome the problem of noise generated by the reciprocating flow of pressurized gas at high speed to and from the humidification device in the prior art. This invention provides a ventilation therapy device and its humidification device, which reduces noise by changing the size of the flow area of ​​the gas.

[0005] To achieve the above objectives, the first aspect of this utility model provides a humidification device, including a housing. The housing has an inlet / outlet chamber and a humidification chamber. The inlet / outlet chamber includes a first inlet chamber and a first outlet chamber that are isolated from each other. The housing also includes an inlet pipe and an outlet pipe. The inlet pipe is connected to the first inlet chamber, and the outlet pipe is connected to the first outlet chamber. Dry gas can be driven to enter the humidification chamber from the inlet pipe after passing through the first inlet chamber. The dry gas is humidified in the humidification chamber to obtain wet gas. The wet gas can be driven to exit from the outlet pipe after passing through the first outlet chamber. The cross-sectional area of ​​the inlet pipe is smaller than the cross-sectional area of ​​the first inlet chamber, and the cross-sectional area of ​​the outlet pipe is smaller than the cross-sectional area of ​​the first outlet chamber.

[0006] Preferably, the humidification device further includes a transition chamber, which comprises a second air inlet chamber and a second air outlet chamber that are isolated from each other. The first air inlet chamber is connected to the second air inlet chamber, and the first air outlet chamber is connected to the second air outlet chamber. A second dry gas inlet is provided on the side of the second air inlet chamber away from the first air inlet chamber, and a second wet gas inlet is provided on the side of the second air outlet chamber away from the first air outlet chamber. The second air inlet chamber is connected to the humidification chamber through the second dry gas inlet, and the second air outlet chamber is connected to the humidification chamber through the second wet gas inlet. The cross-sectional areas of both the second dry gas inlet and the second wet gas inlet are smaller than the cross-sectional area of ​​the humidification chamber.

[0007] Preferably, the housing includes a matching upper housing and a lower housing, wherein an air inlet pipe and an air outlet pipe are disposed on the lower housing, an air inlet and outlet chamber are formed inside the lower housing, and the other areas inside the housing, excluding the air inlet and outlet chambers, are formed as humidification chambers.

[0008] Preferably, the housing includes a matching upper housing and a lower housing, wherein an air inlet pipe and an air outlet pipe are disposed on the lower housing, an air inlet / outlet chamber is formed inside the lower housing, a transition chamber is formed on the upper housing, and the other areas inside the housing, excluding the air inlet / outlet chamber and the transition chamber, are formed as humidification chambers.

[0009] Preferably, the cross-sectional area of ​​the second inlet chamber gradually decreases along the flow direction of the dry gas; and / or, the cross-sectional area of ​​the second outlet chamber gradually increases along the flow direction of the wet gas.

[0010] Preferably, a first airflow guide rib is provided in the second air intake chamber, and the first airflow guide rib forms a first guide surface along the flow direction of dry gas in the transition chamber; and / or, a second airflow guide rib is provided in the second air outlet chamber, and the second airflow guide rib forms a second guide surface along the flow direction of wet gas in the transition chamber.

[0011] Preferably, both the second dry gas inlet and the second wet gas inlet are formed on the side wall of the transition cavity, and at least one of the second dry gas inlet or the second wet gas inlet faces the side wall of the humidification cavity, forming a ventilation gap between them.

[0012] Preferably, the inlet and outlet air chambers and / or transition chambers gradually slope towards the bottom of the lower shell along the flow direction of the dry gas.

[0013] Preferably, the humidification device further includes a mounting part disposed on one side of the housing, the mounting part being in communication with the humidification chamber, and the mounting part being used to connect a liquid source so that liquid flows into the humidification chamber.

[0014] The second aspect of this utility model provides a ventilation therapy device, including the humidification device described above.

[0015] Through the above technical solution, dry gas first enters the first intake chamber through the intake pipe, and then enters the humidification chamber through the first intake chamber. The dry gas is humidified in the humidification chamber to obtain wet gas. The wet gas first enters the first outlet chamber through the humidification chamber, and then passes through the outlet pipe through the first outlet chamber and is output. Since there is a difference in the cross-sectional area of ​​gas flow between the intake pipe and the first intake chamber connected to it, and there is also a difference in the cross-sectional area of ​​gas flow between the outlet pipe and the first outlet chamber connected to it, the dry gas and wet gas undergo changes in the size of the flow area when entering and exiting. The gas sound waves collide and cancel each other out during the process of the change in the flow area, which can produce a better noise reduction effect, reduce the noise of the humidification device, and improve the user experience. Attached Figure Description

[0016] Figure 1This is a perspective view of the humidification device of this utility model;

[0017] Figure 2 yes Figure 1 A stereoscopic view from another perspective;

[0018] Figure 3 yes Figure 1 Longitudinal cross-sectional view of the humidification unit;

[0019] Figure 4 yes Figure 1 Exploded perspective view of the humidification unit after the top cover and transition components have been removed;

[0020] Figure 5 yes Figure 4 Assembly drawing;

[0021] Figure 6 yes Figure 5 A stereoscopic view from another perspective;

[0022] Figure 7 yes Figure 6 A 3D view of the humidification unit after the protective cover and the top cover of the air inlet and outlet components have been removed;

[0023] Figure 8 yes Figure 7 Top view;

[0024] Figure 9 yes Figure 1 A perspective view of the upper shell and transition components of the intermediate humidification device;

[0025] Figure 10 yes Figure 9 A three-dimensional view of the intermediate transition component.

[0026] Explanation of reference numerals in the attached figures

[0027] 20-Humidification device; 21-Main body; 212-Transition component; 2121-Transition cavity; 2122-Second dry gas inlet; 2123-Second wet gas inlet; 2124-Second air inlet cavity; 2125-Second air outlet cavity; 2126-First base plate; 2127-First dry gas inlet; 2128-First wet gas inlet; 2129-First partition plate; 21210-First airflow guide rib; 21211-Second airflow guide rib; 21213-Second base plate; 21214-Side plate; 21215-Annular sealing silicone; 213-Humidification cavity; 214-Diffusion gap; 215-Air inlet chamber 216-Gap; 2161-Inlet / outlet component; 21611-Inlet / outlet chamber; 21612-First inlet chamber; 2162-First outlet chamber; 2163-Wet gas connection port; 2164-Dry gas connection port; 2165-Second partition plate; 2166-Heating component; 217-Heating component; 219-Heat insulation component; 2110-Outlet pipe; 2111-Connecting buckle; 2112-Connecting groove; 2113-Second liquid inlet; 22-Mounting part; 221-Mounting cavity; 224-Protective cover; 23-Upper shell; 231-Upper shell sealing ring; 24-Lower shell; 25-Bottom shell; 264-Positioning protrusion; 266-Inlet pipe; 27-Shell. Detailed Implementation

[0028] In this utility model, unless otherwise stated, directional terms such as "up," "down," "left," "right," "front," and "back" generally refer to the directions shown in the accompanying drawings. "Inner" and "outer" refer to the inner and outer contours of the corresponding components.

[0029] Reference Figures 1 to 10 As shown, the present invention provides a humidification device 20, including a housing 27. The housing 27 has an inlet / outlet chamber 2161 and a humidification chamber 213. The inlet / outlet chamber 2161 includes a first inlet chamber 21611 and a first outlet chamber 21612 that are isolated from each other. The housing 27 also includes an inlet pipe 266 and an outlet pipe 2110. The inlet pipe 266 is connected to the first inlet chamber 21611, and the outlet pipe 2110 is connected to the first outlet chamber 21612. Dry gas can be driven from the intake pipe 266 through the first intake chamber 21611 and into the humidification chamber 213. The dry gas is humidified in the humidification chamber 213 to obtain wet gas. The wet gas can be driven to pass through the first exhaust chamber 21612 and be discharged from the exhaust pipe 2110. The cross-sectional area of ​​the intake pipe 266 is smaller than the cross-sectional area of ​​the first intake chamber 21611, and the cross-sectional area of ​​the exhaust pipe 2110 is smaller than the cross-sectional area of ​​the first exhaust chamber 21612.

[0030] The dry gas involved in this invention refers to the airflow before entering the humidification device 20. Since it has not passed through the humidification device 20 and has not been humidified by the liquid in the humidification chamber 213 within the humidification device 20, it has a lower humidity compared to the airflow discharged from the humidification device 20, hence the term "dry gas." Specifically, in the case of application in a ventilation therapy device, the dry gas described in this invention refers to the airflow pressurized by the main unit of the ventilation therapy device. This pressurized airflow is then input into the humidification device 20; the gas before being input into the humidification device 20 is referred to as dry gas.

[0031] Dry gas first enters the first intake chamber 21611 with a larger cross-sectional area from the intake pipe 266, which has a smaller cross-sectional area. Then, it enters the humidification chamber 213 from the first intake chamber 21611. In the humidification chamber 213, the dry gas is humidified to obtain wet gas. The wet gas first enters the first outlet chamber 21612 from the humidification chamber 213, and then passes through the smaller outlet pipe 2110 from the larger outlet chamber 21612 before being output. During the flow of dry gas, it first enters the channel of the smaller intake pipe 266, and then enters the first intake chamber 21611, which has a larger cross-sectional area. This change in cross-sectional area causes sound waves of different frequencies to reflect and collide, canceling each other out and creating passive noise reduction. This results in a better noise reduction effect and improves the user experience. Furthermore, in this embodiment, the flow cross-sectional areas of both the first inlet chamber 21611 and the first outlet chamber 21612 are smaller than the flow cross-sectional area of ​​the humidification chamber 213. Therefore, when dry gas enters the humidification chamber 213 from the first inlet chamber 21611, a change in flow cross-sectional area occurs again, resulting in another collision-induced noise reduction process, further optimizing the noise reduction effect. Thus, the humidification process of dry gas undergoes two changes in flow cross-sectional area, achieving a better noise reduction effect. Similarly, the process of humid gas being finally output from the humidification chamber 213 to the outlet pipe 2110 also undergoes two changes in flow cross-sectional area, similarly achieving a better noise reduction effect.

[0032] Reference Figures 1 to 10 The humidification device also has a transition chamber 2121, which includes a second air inlet chamber 2124 and a second air outlet chamber 2125 that are isolated from each other. The first air inlet chamber 21611 is connected to the second air inlet chamber 2124, and the first air outlet chamber 21612 is connected to the second air outlet chamber 2125, thereby making the air inlet and outlet chambers 2161 and the transition chamber 2121 connected.

[0033] A second dry gas inlet 2122 is provided on the side of the second air inlet chamber 2124 away from the first air inlet chamber 21611, and a second wet gas inlet 2123 is provided on the side of the second air outlet chamber 2125 away from the first air outlet chamber 21612. The second air inlet chamber 2124 is connected to the humidification chamber 213 through the second dry gas inlet 2122, and the second air outlet chamber 2125 is connected to the humidification chamber 213 through the second wet gas inlet 2123. The cross-sectional areas of both the second dry gas inlet 2122 and the second wet gas inlet 2123 are smaller than the cross-sectional area of ​​the humidification chamber 213. In this embodiment, the flow cross-sectional area of ​​the first air inlet chamber 21611 is different from that of the second air inlet chamber 2124, and the flow cross-sectional area of ​​the first air outlet chamber 21612 is different from that of the second air outlet chamber 2125. Therefore, when dry gas enters the second air inlet chamber 2124 from the first air inlet chamber 21611, the flow cross-sectional area will change again, resulting in a collision reflection silencing process. Similarly, when wet gas enters the first air outlet chamber 21612 from the second air outlet chamber 2125, the flow cross-sectional area will change again, resulting in a collision emission silencing process. Thus, three changes in flow area occur during the humidification of dry and wet gas and the output after humidification, thereby achieving a better noise reduction effect.

[0034] During the process of dry gas entering the humidification chamber 213 from outside the humidification device 20, the dry gas enters the first inlet chamber 21611 with a larger flow cross-sectional area from the inlet pipe 266 with a smaller flow cross-sectional area. At this time, the airflow undergoes a change in the size of the flow area once. Then, it enters the second inlet chamber 2124 with a different flow cross-sectional area from the first inlet chamber 21611 with a larger flow cross-sectional area. At this time, the airflow undergoes a second change in the size of the flow area once. Then, it passes through the second dry gas inlet 2122 with a smaller flow cross-sectional area from the second inlet chamber 2124 and enters the humidification chamber 213 with a larger flow cross-sectional area. At this time, the airflow undergoes a third change in the size of the flow area once. Similarly, during the flow of humid gas from the humidification chamber 213 to the outside of the humidification device 20, the humid gas passes through the second humid gas inlet 2123 with a smaller flow cross-sectional area after passing through the humidification chamber 213 with a larger flow cross-sectional area, and then enters the second outlet chamber 2125 with a different flow cross-sectional area. At this point, the airflow undergoes a change in flow area once. Then, it enters the first outlet chamber 21612 with a different flow cross-sectional area from the second outlet chamber 2125. At this point, the airflow undergoes a second change in flow area, and then exits the first outlet chamber 21612 through the outlet pipe 2110 with a smaller flow cross-sectional area to the outside of the humidification device 20. At this point, the airflow undergoes a third change in flow area. The three changes in flow area of ​​the dry and humid gases, through the multi-stage changes in flow cross-sectional area, cause sound waves of different frequencies to cancel each other out during reflection, resulting in a good noise reduction effect, reducing the noise of the humidification device 20, and improving the user experience. In addition, in this invention, by designing a specific flow cross-sectional area and chamber combination, a resonant sound-absorbing structure can be formed to absorb noise of specific frequencies, achieving a better noise reduction effect.

[0035] Specifically, the housing 27 includes a lower housing 24 and an upper housing 23 that are adapted to and connected to each other. The upper housing 23 and the lower housing 24 form the housing 27. The housing 27 includes an inlet / outlet chamber 2161, a transition chamber 2121, and a humidification chamber 213. In an embodiment without a transition chamber 2121, the first inlet chamber 21611 communicates with the humidification chamber 213. An inlet pipe 266 and an outlet pipe 2110 are disposed on the lower housing 24. The inlet / outlet chamber 2161 is formed within the lower housing 24. The remaining area within the housing 27, excluding the inlet / outlet chamber 2161, forms the humidification chamber 213. In an embodiment with a transition chamber 2121, the transition chamber 2121 is formed on the upper housing 23. The remaining area within the housing 27, excluding the inlet / outlet chamber 2161 and the transition chamber 2121, forms the humidification chamber 213.

[0036] The dry gas to be humidified and the humidified gas need to flow through two isolated chambers to prevent the liquid in the humid gas from mixing with the dry gas, which would reduce the degree of humidification. Specifically, the dry gas flows sequentially into the humidification chamber 213 along the inlet pipe 266, the first inlet chamber 21611, the dry gas connection port 2163, the first dry gas outlet 2127, the second inlet chamber 2124, and the second dry gas outlet 2122. The humid gas flows sequentially along the humidification chamber 213, the second humid gas outlet 2123, the second outlet chamber 2125, the first humid gas outlet 2128, the humid gas connection port 2162, the first outlet chamber 21612, and the outlet pipe 2110. Dry gas passes through the inlet / outlet chamber 2161 of the lower shell 24, the transition chamber 2121 of the upper shell 23, and the humidification chamber 213 of the lower shell 24. Moist gas passes through the humidification chamber 213 of the lower shell 24, the transition chamber 2121 of the upper shell 23, and the inlet / outlet chamber 2161 of the lower shell 24. Within the limited space formed inside the shell 27, the space of the upper shell 23 is utilized efficiently to increase the flow paths of both dry and moist gas, thereby increasing the noise consumption time and achieving a better noise reduction effect. The dimensions of the first inlet chamber 21611 and the first outlet chamber 21612 can be exactly the same, as can the dimensions of the second inlet chamber 2124 and the second outlet chamber 2125.

[0037] Reference Figure 9 As shown, the second dry gas inlet 2122 and the second wet gas inlet 2123 are both formed on the side wall of the transition cavity 2121. At least one of the second dry gas inlet 2122 or the second wet gas inlet 2123 faces the side wall of the humidification cavity 213 and forms a ventilation gap with the side wall of the humidification cavity 213.

[0038] Specifically, the ventilation gap includes a diffusion gap 214 and an inlet gap 215. A diffusion gap 214 is formed between the second dry gas inlet 2122 and the side wall of the humidification chamber 213. Dry gas enters the humidification chamber 213 through the diffusion gap 214. The second wet gas inlet 2123 is directly opposite the side wall of the humidification chamber 213, and an inlet gap 215 is formed between the two. Wet gas enters the second outlet chamber 2125 through the inlet gap 215. Heating components 217 are also provided at the bottom of the liquid storage area of ​​the humidification chamber 213 and the bottom of the corresponding lower shell 24 area. The heating component 217 can be a heating plate. The dry gas to be humidified enters the humidification chamber 213 through the second dry gas inlet 2122. Generally, the dry gas is a pressurized gas with a certain pressure and flow rate. Since the opening of the second dry gas inlet 2122 corresponds to the side wall of the humidification chamber 213, the dry gas can impact the side wall of the humidification chamber 213 when it is output from the second dry gas inlet 2122. On the one hand, this prevents the dry gas from directly impacting the liquid in the humidification chamber 213, causing the liquid to splash or backflow. On the other hand, the side wall of the humidification chamber 213... The cavity wall can weaken the impact force of the dry gas, so that the impact force of the dry gas when it comes into contact with the liquid is sufficiently reduced, avoiding the liquid being blown away and / or splashed, which would cause uneven heating of the liquid. This prevents the liquid from being insufficiently heated or flowing back out of the humidification device 20. On the other hand, when the dry gas impacts the side cavity wall of the humidification cavity 213, it can diffuse under the reaction force of the side cavity wall, increasing the diffusion area of ​​the dry gas and promoting more complete fusion of the dry gas and the vaporized liquid in the humidification cavity 213. This allows the dry gas to be fully humidified, which not only meets the user's needs and improves the user experience, but also reduces the energy consumption of the heating component 217 because the vaporized liquid is fully utilized.

[0039] In addition, the second dry gas inlet 2122 and the second wet gas inlet 2123 are located near the center of the liquid storage area in the humidification chamber 213 along the length direction, so that the dry gas can flow from the second dry gas inlet 2122 to the center of the liquid storage area in the length direction above the liquid storage area of ​​the humidification chamber 213. At this position, the dry gas has enough space to diffuse, thereby increasing the contact area between the dry gas and the vaporized liquid, i.e., the humidification area. Furthermore, the second dry gas inlet 2122 and the second wet gas inlet 2123 are formed on the side plate 21214 of the transition member 212, which will be described later, i.e., on the side of the transition member 212, rather than at the bottom. On the one hand, when the humidifying gas is poured in any direction (left, right, front, or back), the second dry gas inlet 2122 and the second wet gas inlet 2123 can be above the liquid surface in the humidification chamber 213, preventing the liquid from entering the transition chamber 2121 from the second dry gas inlet 2122 and the second wet gas inlet 2123, thus having a static anti-backflow function. On the other hand, it can increase the distance between the second wet gas inlet 2123 and the liquid in the humidification chamber 213, preventing the liquid from being carried out of the humidification device 20 by the wet gas and causing splashing.

[0040] To allow undried dry gas to exit from the second dry gas inlet 2122 into the humidification chamber 213, a sufficient distance is maintained between the second dry gas inlet 2122 and the side wall, forming a diffusion gap 214. This allows the dry gas to exit from the second dry gas inlet 2122 into the diffusion gap 214, simultaneously impacting the side wall of the humidification chamber 213 and fully diffusing within the diffusion gap 214 before entering the humidification chamber 213. Similarly, to allow humidified wet gas to enter the transition chamber 2121 from the second wet gas inlet 2123 into the transition chamber 2121, a sufficient distance is maintained between the second wet gas inlet 2123 and the side wall, forming an inlet gap 215. This allows the wet gas to sequentially enter the transition chamber 2121 from the inlet gap 215 and the second wet gas inlet 2123. The second dry gas inlet 2122 and the second wet gas inlet 2123 are respectively formed on opposite sides of the transition member 212, so that the second dry gas inlet 2122 is connected to the second air inlet chamber 2124 and the second wet gas inlet 2123 is connected to the second air outlet chamber 2125. The diffusion gap 214 and the air inlet gap 215 are respectively located on opposite sides of the transition member 212.

[0041] Reference Figure 9 and Figure 10 Along the flow direction of dry gas, the cross-sectional area of ​​the second inlet chamber 2124 gradually decreases; and / or, along the flow direction of wet gas, the cross-sectional area of ​​the second outlet chamber 2125 gradually increases.

[0042] The second inlet chamber 2124 is where dry gas enters the humidification chamber 213 from the transition chamber 2121. The flow cross-section of the second inlet chamber 2124 gradually decreases, increasing the flow velocity of the dry gas and allowing it to impact the side walls of the humidification chamber 213 over a wider area, thus enabling it to more fully mix with the vaporized liquid. The second outlet chamber 2125 is where humid gas enters the transition chamber 2121 from the humidification chamber 213. The flow cross-section of the second outlet chamber 2125 gradually increases, allowing the humid gas to diffuse and accumulate in a wider area of ​​the second outlet chamber 2125. This enables the humidification device 20 to output a sufficient amount of humidified gas at once to meet user needs.

[0043] Specifically, along the flow direction of dry gas, the second air inlet chamber 2124 includes a first wide section, a first transition section, and a first narrow section formed sequentially. The cross-sectional dimension of the first wide section is larger than that of the first narrow section. The cross-sectional dimension of the first transition section gradually changes from the dimension of the first wide section to that of the first narrow section. The side plate 21214 at the first wide section extends obliquely toward the side plate 21214 at the first transition section, and the side plate 21214 at the first transition section extends obliquely toward the side plate 21214 at the first narrow section. The side plate 21214 at the first narrow section extends along a length direction parallel to the upper shell 23. Along the flow direction of wet gas, the second air outlet chamber 2125 includes a second narrow section, a second transition section, and a second wide section formed sequentially. The cross-sectional dimension of the second narrow section is smaller than that of the second wide section. The cross-sectional dimension of the second transition section gradually changes from that of the second narrow section to that of the second wide section. The transition components 212 are symmetrical about the extension direction of the first partition plate 2129.

[0044] Reference Figure 10 A first airflow guide 21210 is provided in the second air intake chamber 2124, and the first airflow guide 21210 forms a first guide surface along the flow direction of dry gas in the transition chamber 2121; and / or a second airflow guide 21211 is provided in the second air outlet chamber 2125, and the second airflow guide 21211 forms a second guide surface along the flow direction of wet gas in the transition chamber 2121.

[0045] Specifically, the first airflow guide rib 21210 is located in the first narrow section of the second air inlet chamber 2124 and protrudes from the side plate 21214. Along the flow direction of the dry gas, the first airflow guide rib 21210 includes a first inclined plate, a first flat plate, and a first connecting plate, which are formed as an integral structure. The first inclined plate is inclined along the side plate 21214 toward the first flat plate, and its surface forms a first guide surface that can guide the flow of dry gas, thereby improving the fluidity of the dry gas and eliminating the area where eddies may be generated during the flow of dry gas from the first transition section to the first narrow section. The first flat plate extends in a direction parallel to the side plate 21214 at the first narrow section, and the first connecting plate is perpendicular to the first flat plate and connected to the side plate 21214 at the first narrow section. When the liquid in the humidification chamber 213 enters the transition chamber 2121 from the second dry gas inlet 2122 due to shaking, tilting, or other reasons, the surface of the first connecting plate can prevent the liquid from continuing to flow toward the first dry gas inlet 2127. Similarly, the second airflow guide 21211 is located in the second narrow section of the second air outlet chamber 2125 and protrudes from the side plate 21214. Along the flow direction of the humid gas, the second airflow guide 21211 includes a second inclined plate, a second flat plate, and a second connecting plate, which are formed as an integral structure. The second inclined plate is inclined along the side plate 21214 toward the second flat plate, and its surface forms a second airflow guide that can guide the flow of humid gas, thereby improving the fluidity of the humid gas and eliminating the area where eddies may be generated during the flow of humid gas from the second narrow section to the second transition section. The second flat plate extends in a direction parallel to the side plate 21214 at the second narrow section, and the second connecting plate is perpendicular to the second flat plate and connected to the side plate 21214 at the second narrow section.

[0046] Reference Figure 3 , Figure 9 and Figure 10 The humidification device also includes a transition component 212 disposed within the housing 27. At least a portion of the housing 27 is formed as a humidification chamber 213, and a transition chamber 2121 is formed inside the transition component 212. The transition component 212 is formed as a cover structure and is connected to the upper shell 23 of the humidification device 20. The transition component 212 of the cover structure and the upper shell 23 together form the transition chamber 2121.

[0047] The transition component 212 also includes a first partition plate 2129 disposed within the transition cavity 2121. The first partition plate 2129 is located between the second air inlet cavity 2124 and the second air outlet cavity 2125 to isolate the two cavities. The first partition plate 2129 is sealed to the upper shell 23, forming a mutually sealed and isolated second air inlet cavity 2124 and second air outlet cavity 2125. The transition component 212 can be integrally formed, which increases its structural strength. Furthermore, there are no connecting gaps between the first bottom plate 2126, the second bottom plate 21213, the side plate 21214, and the first partition plate 2129, resulting in strong sealing. Similarly, the upper shell 23 and the transition component 212 can also be integrally formed, which similarly increases structural strength and sealing performance.

[0048] Reference Figure 9 and Figure 10 The inlet / outlet gas chamber 2161 and / or the transition chamber 2121 gradually tilt towards the bottom of the lower shell 24 along the flow direction of the dry gas.

[0049] Transition component 212 includes components extending towards the bottom of the lower housing 24 along the flow direction of the dry gas. Figure 3 The first base plate 2126 is inclined downwards, and a first dry gas inlet 2127 and a first wet gas inlet 2128 are formed on the first base plate 2126.

[0050] The liquid storage area of ​​the humidification chamber 213 stores liquid. When the liquid in the humidification chamber 213 splashes or flows into the transition chamber 2121 from the second dry gas inlet 2122 and the second wet gas inlet 2123 due to shaking, tilting or other reasons, the liquid in the transition chamber 2121 can flow back into the humidification chamber 213 through the first bottom plate 2126 tilted towards the humidification chamber 213. This prevents the liquid from entering the inlet / outlet chamber 2161 of the inlet / outlet component 216 described later from the first dry gas inlet 2127 and the first wet gas inlet 2128 on the first bottom plate 2126, thus having a dynamic anti-backflow function. The aforementioned first airflow guide rib 21210 and second airflow guide rib 21211, combined with the inclined first base plate 2126, prevent liquid from flowing from the first dry gas inlet 2127 and the first wet gas inlet 2128 into the inlet / outlet air chamber 2161, thereby preventing liquid from entering the breathing trachea and improving the safety of the humidification device 20.

[0051] In addition, the transition component 212 also includes a second base plate 21213 connected to the first base plate 2126 and a side plate 21214 surrounding the first base plate 2126 and the second base plate 21213. The first base plate 2126, the second base plate 21213, the side plate 21214 and the upper shell 23 form a transition cavity 2121. The second dry gas inlet 2122 and the second wet gas inlet 2123 are both formed on the side plate 21214. The second base plate 21213 is set in a horizontal form. On the one hand, it can avoid the resistance to the flow of humid and dry gas in the transition cavity 2121 due to the inclination of the second base plate 21213. On the other hand, the liquid that cannot flow back from the second dry gas inlet 2122 and the second wet gas inlet 2123 to the humidification cavity 213 can be temporarily stored on the second base plate 21213, preventing the liquid from continuing to flow into the first dry gas inlet 2127 and the first wet gas inlet 2128 of the first base plate 2126.

[0052] Reference Figure 3 , Figures 4 to 9 The humidification device 20 also includes an air inlet / outlet component 216 disposed within the housing 27. The air inlet / outlet component 216 is formed into an air inlet / outlet chamber 2161. Both the dry gas connection port 2163 and the wet gas connection port 2162 are disposed on the air inlet / outlet component 216.

[0053] Specifically, the first dry gas inlet 2127 and the dry gas connection port 2163 are formed as coaxial circular holes, and the first wet gas inlet 2128 and the wet gas connection port 2162 are formed as coaxial circular holes. The edges of the two sets of coaxial circular holes are sealed by annular sealing silicone 21215. The diameter of the first dry gas inlet 2127 is smaller than the diameter of the dry gas connection port 2163, and the diameter of the first wet gas inlet 2128 is smaller than the diameter of the wet gas connection port 2162. The two different annular sealing silicone 21215 are respectively fixed to the outer peripheral edge of the first dry gas inlet 2127 and the outer peripheral edge of the first wet gas inlet 2128, and are respectively fixed to the inner peripheral edge of the dry gas connection port 2163 and the inner peripheral edge of the wet gas connection port 2162.

[0054] Reference Figures 4 to 8 The air inlet / outlet component 216 is formed as a box structure, including a box with an open top and a box cover on top of the box. The top of the box is parallel to the first bottom plate 2126 of the transition component 212, so that the wet gas inlet 2162 and dry gas inlet 2163 formed on the box can be sealed and connected with the first wet gas outlet 2128 and the first dry gas outlet 2127 formed on the first bottom plate 2126, respectively, and are used to form the aforementioned dry gas inlet 2163 and wet gas inlet 2162 that gradually slope towards the bottom of the lower shell 24 along the flow direction of dry gas.

[0055] Reference Figure 4 and Figure 7 The air inlet / outlet component 216 includes a second partition plate 2164 disposed inside the air inlet / outlet chamber 2161, which divides the air inlet / outlet chamber 2161 into a first air inlet chamber 21611 and a first air outlet chamber 21612.

[0056] The second partition plate 2164 is sealed to the cover of the air inlet / outlet component 216, forming a first air inlet chamber 21611 and a first air outlet chamber 21612 that are sealed and isolated from each other. The body of the air inlet / outlet component 216 can be integrally formed, which can increase the structural strength of the body. The cover and body of the air inlet / outlet component 216 can also be integrally formed, which can increase the structural strength and the sealing performance of both.

[0057] Reference Figures 1 to 10 The upper shell 23 and the lower shell 24 are connected to each other. One side of the upper shell 23 is connected to the lower shell 24, and the other side has a positioning protrusion 264. The positioning protrusion 264 can be driven to engage with a positioning hole formed on the main unit. A transition member 212 is formed on the upper shell 23, and an air inlet / outlet member 216 is formed inside the lower shell 24.

[0058] Specifically, an extension plate is formed on one side of the upper shell 23, and a connecting groove 2112 is provided on the extension plate. A connecting buckle 2111 is provided on the corresponding side of the lower shell 24. The connecting buckle 2111 can be inserted into the connecting groove 2112 for fixation, thereby connecting one side of the upper shell 23 to the lower shell 24. After the humidification device 20 is connected to the main unit, the positioning protrusion 264 can be fixed relative to the main unit by inserting into the positioning hole of the main unit. The lower shell 24 is connected to the main unit in other ways. After the upper shell 23 and the lower shell 24 are connected by the connecting groove 2112 and the connecting buckle 2111, they are then fixed together by connecting to the main unit, which increases the stability of the connection between the upper shell 23 and the lower shell 24.

[0059] In addition, an upper shell sealing ring 231 is fixed at the edge of the upper shell 23 facing the lower shell 24 to achieve a sealed connection with the lower shell 24.

[0060] Reference Figure 4 The humidification device 20 also includes a bottom shell 25 and a heat insulation component 219 disposed on the bottom shell 25. A transition component 212 is disposed on the upper shell 23. A humidification chamber 213 is formed in the lower shell 24. A heating component 217 is disposed above the heat insulation component 219 to isolate the heat transferred from the heating component 217 to the bottom shell 25.

[0061] The heating element 217 generates heat capable of vaporizing liquids. Direct contact with this heat could cause burns or other safety issues. Therefore, a heat insulation element 219 is added between the heating element 217 and the base shell 25 to prevent the heat from the heating element 217 from being directly transferred to the base shell 25 and to prevent the heat from the heating element 217 from damaging the base shell 25. Specifically, the heat insulation element 219 can be a plate-shaped heat-insulating silicone pad.

[0062] The bottom shell 25 has multiple spaced snap-fit ​​protrusions (not shown in the figure) on its outer periphery, and the bottom inner periphery of the lower shell 24 forms a snap-fit ​​groove (not shown in the figure). The bottom shell 25 and the lower shell 24 are connected by snap-fit ​​engagement of the snap-fit ​​protrusions and the snap-fit ​​groove.

[0063] Reference Figures 1 to 8 The humidification device includes a main body 21 and a mounting part 22. The mounting part 22 is disposed on one side of the main body 21. The housing 27, the transition component 212, the heating component 217, and the air inlet / outlet component 216 are all disposed on the main body 21. The mounting part 22 has a mounting cavity 221 communicating with the humidification cavity 213 of the housing 27. The mounting cavity 221 is used to communicate with a liquid source (e.g., a water bottle). A second liquid inlet 2113 is formed on the main body 21 to communicate with the mounting cavity 221 of the humidification cavity 213, so that liquid flows into the humidification cavity 213.

[0064] like Figures 3 to 6 As shown, the humidification device 20 also includes a protective cover 224 covering the mounting cavity 221. On the one hand, the protective cover 224 isolates the mounting cavity 221 from the outside world, preventing foreign objects from entering the humidification device 20 and maintaining the cleanliness inside the humidification device 20. On the other hand, when the humidification device 20 is used in a ventilation therapy device, if it is not necessary to output humidified gas, the humidification device 20 can be used only as an inlet and outlet connection in the ventilation therapy device, allowing the ventilation therapy device to switch to a non-humidified ventilation state.

[0065] This utility model provides a ventilation therapy device, including a main unit and the aforementioned humidification device 20 connected to the main unit.

[0066] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings; however, the present invention is not limited thereto. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, including combinations of various specific technical features in any suitable manner. To avoid unnecessary repetition, the present invention will not describe the various possible combinations separately. However, these simple modifications and combinations should also be considered as the content disclosed in the present invention and are all within the protection scope of the present invention.

Claims

1. A humidification device, characterized in that, The device includes a housing (27) having an inlet / outlet chamber (2161) and a humidification chamber (213). The inlet / outlet chamber (2161) includes a first inlet chamber (21611) and a first outlet chamber (21612) that are isolated from each other. The housing (27) also includes an inlet pipe (266) and an outlet pipe (2110). The inlet pipe (266) is connected to the first inlet chamber (21611), and the outlet pipe (2110) is connected to the first outlet chamber (21612). Dry gas can be driven to enter the humidification chamber (213) after passing through the first intake chamber (21611) from the intake pipe (266), and the dry gas is humidified in the humidification chamber (213) to obtain wet gas. The wet gas can be driven to be discharged from the exhaust pipe (2110) after passing through the first exhaust chamber (21612). The cross-sectional area of ​​the air inlet pipe (266) is smaller than that of the first air inlet chamber (21611), and the cross-sectional area of ​​the air outlet pipe (2110) is smaller than that of the first air outlet chamber (21612).

2. The humidification device according to claim 1, characterized in that, The humidification device also has a transition chamber (2121), which includes a second air inlet chamber (2124) and a second air outlet chamber (2125) that are isolated from each other. The first air inlet chamber (21611) is connected to the second air inlet chamber (2124), and the first air outlet chamber (21612) is connected to the second air outlet chamber (2125). A second dry gas inlet (2122) is provided on the side of the second air inlet chamber (2124) away from the first air inlet chamber (21611), and a second wet gas inlet (2123) is provided on the side of the second air outlet chamber (2125) away from the first air outlet chamber (21612). The second air inlet chamber (2124) is connected to the humidification chamber (213) through the second dry gas inlet (2122), and the second air outlet chamber (2125) is connected to the humidification chamber (213) through the second wet gas inlet (2123). The cross-sectional areas of the second dry gas inlet (2122) and the second wet gas inlet (2123) are both smaller than the cross-sectional area of ​​the humidification chamber (213).

3. The humidification device according to claim 1, characterized in that, The housing (27) includes a matching upper shell (23) and a lower shell (24), wherein the air inlet pipe (266) and the air outlet pipe (2110) are disposed on the lower shell (24), the air inlet and outlet chamber (2161) is formed in the lower shell (24), and the other areas in the housing (27) except for the air inlet and outlet chamber (2161) are formed as the humidification chamber (213).

4. The humidification device according to claim 2, characterized in that, The housing (27) includes a matching upper shell (23) and a lower shell (24), wherein the air inlet pipe (266) and the air outlet pipe (2110) are disposed on the lower shell (24), the air inlet / outlet chamber (2161) is formed in the lower shell (24), the transition chamber (2121) is formed on the upper shell (23), and the other areas in the housing (27) except for the air inlet / outlet chamber (2161) and the transition chamber (2121) are formed as the humidification chamber (213).

5. The humidification device according to claim 2, characterized in that, Along the flow direction of dry gas, the area of ​​the flow cross section of the second inlet chamber (2124) gradually decreases; and / or, along the flow direction of wet gas, the area of ​​the flow cross section of the second outlet chamber (2125) gradually increases.

6. The humidification device according to claim 2, characterized in that, A first airflow guide rib (21210) is provided in the second air intake chamber (2124), and the first airflow guide rib (21210) forms a first guide surface along the flow direction of dry gas in the transition chamber (2121); and / or, a second airflow guide rib (21211) is provided in the second air outlet chamber (2125), and the second airflow guide rib (21211) forms a second guide surface along the flow direction of wet gas in the transition chamber (2121).

7. The humidification device according to claim 2, characterized in that, The second dry gas inlet (2122) and the second wet gas inlet (2123) are both formed on the side wall of the transition cavity (2121). At least one of the second dry gas inlet (2122) or the second wet gas inlet (2123) faces the side wall of the humidification cavity (213) and forms a ventilation gap with the side wall of the humidification cavity (213).

8. The humidification device according to claim 4, characterized in that, The inlet / outlet chamber (2161) and / or the transition chamber (2121) gradually tilt towards the bottom of the lower shell (24) along the flow direction of the dry gas.

9. The humidification apparatus according to any one of claims 1 to 8, characterized in that, The humidification device (20) further includes a mounting part (22) disposed on one side of the housing (27), the mounting part (22) being in communication with the humidification chamber (213), the mounting part (22) being used to connect a liquid source so that liquid flows into the humidification chamber (213).

10. A ventilation therapy device, characterized in that, Includes the humidification device (20) according to any one of claims 1 to 9.

Images