Humidifying module for breathing machine

Abstract

The utility model relates to the technical field of medical instruments, and discloses a humidifying module for a breathing machine, the humidifying module comprises a shell, an air inlet pipe and an air outlet pipe, a cavity is formed in the shell, the air inlet pipe comprises an outer air inlet section located outside the cavity and an inner air inlet section located inside the cavity, and the outer air inlet section and the inner air inlet section communicate with each other; the air outlet pipe comprises an outer air outlet section located outside the cavity and an inner air outlet section located inside the cavity, the outer air outlet section is communicated with the inner air outlet section, and an air inlet of the inner air outlet section is a certain distance away from the cavity wall of the cavity. The humidifying module in the application is not influenced by the condition of the user side and the environment, so that the humidifying effect is improved and the comfort of the user is improved; in addition, the humidifying module does not need to be provided with an adsorption material, the situation that the adsorption material is prone to mildewing and breeding bacteria after adsorbing water is avoided, and then the use experience of a user is improved.

Description

Technical Field

[0001] The present application belongs to the technical field of medical devices, and specifically relates to a humidification module for a ventilator. Background Art

[0002] A ventilator is generally equipped with a blower. The air outlet of the blower interacts with the user through the breathing tube and the mask. The humidified air will make the user feel more comfortable and easier to be accepted by the user. Therefore, the humidification module has gradually become one of the indispensable components of the ventilator.

[0003] The humidification module is typically a humidification tank located at the end of the ventilator. It has an internal gas channel filled with humidifying liquid. Gas from the blower enters the tank through the gas channel and comes into contact with the humidifying liquid, humidifying the gas. The humidified gas then flows out of the tank's outlet and through the breathing tube to the user's end, assisting the user's breathing. Because the humidification tank is located at the end of the ventilator, the entire device is relatively large, and for humidification tanks with a heating function, condensation is very likely to form in the breathing tube.

[0004] In order to reduce the volume of the whole machine and avoid the phenomenon of condensation in the breathing tube, a humidification module installed in the breathing tube has appeared on the market. It can adsorb water vapor from the gas exhaled by the user and desorb the water vapor into the airflow under treatment pressure, so that the water vapor returns to the user end along with the airflow; although it reduces the volume of the whole machine and avoids the phenomenon of condensation in the breathing tube, this method of using the water vapor exhaled by the user as the humidification source is easily affected by the humidity of the exhaled gas at the user end, the ambient temperature and the moisture adsorption capacity of the materials in the humidification module, resulting in poor humidification effect; at the same time, the materials in the humidification module are prone to mold and breed bacteria after absorbing moisture, and the adsorption materials in the humidification module need to be replaced more frequently to ensure that the user end breathes clean air. This not only increases the user's treatment cost, but also increases the wear of the humidification module while frequently replacing the adsorption material, thereby reducing the overall service life of the humidification module. Utility Model Content

[0005] The present application provides a humidification module for a ventilator to improve the humidification effect of the humidification module, reduce user treatment costs and extend the service life of the humidification module.

[0006] The technical solutions adopted in this application are:

[0007] A humidification module for a ventilator, comprising:

[0008] a housing, wherein a chamber is formed inside the housing;

[0009] an air inlet pipe, the air inlet pipe comprising an outer air inlet section located outside the chamber and an inner air inlet section located inside the chamber, the outer air inlet section and the inner air inlet section being in communication with each other, and an air outlet of the inner air inlet section being at a certain distance from a cavity wall of the chamber;

[0010] An air outlet pipe comprises an outer air outlet section located outside the chamber and an inner air outlet section located inside the chamber, the outer air outlet section and the inner air outlet section are connected to each other, and an air inlet of the inner air outlet section is at a certain distance from the cavity wall of the chamber.

[0011] By adopting the above-mentioned technical solution, when using the humidification module in the present application, the external air inlet section and the external air outlet section can be connected to two breathing tubes respectively, and the breathing tube connected to the external air inlet section can be connected to the air outlet of the ventilator, and the breathing tube connected to the external air outlet section can be connected to the user end, so that the gas generated by the ventilator enters the chamber through the air inlet pipe, and the gas entering the chamber contacts the liquid contained in the chamber, so that the liquid contained in the chamber moistens the gas, and the moistened liquid flows to the user end through the air outlet pipe and the breathing tube to treat the user.

[0012] Since the humidification module in the present application is arranged in the breathing circuit, the overall volume of the ventilator is reduced, making it easier for users to carry it outside; and when using the humidification module in the present application, the length of the breathing circuit connected to the user end can be made shorter than the connecting circuit connected to the ventilator, or the humidification module can be directly connected to the breathing mask, thereby making the humidification module closer to the user end, thereby greatly reducing the possibility of condensation water in the breathing circuit, thereby improving the user experience.

[0013] At the same time, the humidification module in this application uses the gas generated by the ventilator to directly contact the liquid contained in the chamber to achieve humidification of the gas. Compared with the existing solution of using water vapor exhaled by the user, this method is not affected by the user's own conditions and the environment, thereby greatly improving the humidification effect, thereby greatly improving the user's comfort and improving the user's experience.

[0014] Moreover, the humidification module in the present application does not require adsorption materials, and thus does not require replacement of the adsorption materials, which reduces the user's treatment costs and avoids the occurrence of mold and bacterial growth after the adsorption materials absorb water, thereby improving the user's experience; in addition, since the humidification module in the present application does not require replacement of its internal components, it also avoids the occurrence of wear and tear of the humidification module due to replacement of its internal components, thereby extending the service life of the humidification module.

[0015] The humidification module in this application eliminates the need for adsorption materials. On the one hand, it can reduce the volume and weight of the humidification module to further facilitate portability for users. On the other hand, the humidification module can be cleaned and disinfected separately to greatly extend the service life of the humidification module. The installation position is flexible and the installation method is convenient, which greatly reduces the difficulty of use for users and greatly improves the user experience.

[0016] The air outlet of the inner air inlet section in the present application is at a certain distance from the cavity wall of the chamber, and the air inlet of the inner air outlet section is at a certain distance from the cavity wall of the chamber. Then, when the amount of liquid inside the chamber is at the maximum liquid level, the humidification module is rotated at any angle, and the liquid level is lower than the air outlet of the inner air inlet section and the air inlet of the inner air outlet section, so as to avoid the situation where the liquid in the chamber may enter the air inlet pipe or the air outlet pipe, thereby avoiding the situation where the liquid enters the ventilator through the breathing tube and causes the ventilator to malfunction, thereby ensuring the service life of the ventilator, and avoiding the situation where the liquid enters the user end through the breathing tube, thereby improving the user experience.

[0017] Optionally, a flow guide is provided between the inner air inlet section and the inner air outlet section, and the orthographic projection of the flow guide can cover the air outlet of the inner air inlet section and the air inlet of the inner air outlet section.

[0018] By adopting the above technical solution, since the guide member is located between the inner air inlet section and the inner air outlet section, and the orthographic projection of the guide member can cover the air outlet of the inner air inlet section and the air inlet of the inner air outlet section, and then when liquid is added to the chamber through the air inlet pipe or the air outlet pipe, the guide member can block the air inlet of the inner air outlet section or the air outlet of the inner air inlet section, on the one hand, it avoids the situation that the liquid is directly discharged through the air outlet pipe when the liquid is added to the chamber through the air inlet pipe, and avoids the situation that the liquid is directly discharged through the air inlet pipe when the liquid is added to the chamber through the air outlet pipe, thereby greatly reducing the difficulty of adding liquid to the chamber and improving the efficiency of adding liquid to the chamber; on the other hand, when the humidification module rotates, the guide member can also block the air outlet of the inner air inlet section and the air inlet of the inner air outlet section, so as to further avoid the situation that the liquid flows out through the air inlet pipe and the situation that the liquid flows out through the air outlet pipe, thereby further improving the user experience.

[0019] Optionally, the flow guide member includes a first flow guide section, the first flow guide section is a cone, and the cross-sectional area of ​​the cone gradually increases along the liquid inlet direction.

[0020] By adopting the technical scheme, since the first flow guide section is a cone and the cross-sectional area of the cone gradually increases along the liquid inlet direction, when liquid is added to the chamber, the cone can guide the liquid to quickly fall along the edge of the cone, thereby avoiding the situation that the liquid remaining on the flow guide member flows out through the air inlet pipe or the air outlet pipe when the humidification module rotates, and further improving the user experience.

[0021] Optionally, the flow guide member further comprises a second flow guide section, and the first flow guide section and the second flow guide section are symmetrically arranged along the bottom surface of the cone of the first flow guide section.

[0022] By adopting the technical scheme, since the first flow guide section and the second flow guide section are symmetrically arranged along the bottom surface of the cone of the first flow guide section, when liquid is added to the chamber through one of the air inlet pipe and the air outlet pipe, the flow guide member can guide the liquid, thereby increasing the flexibility of adding liquid to the chamber and reducing the difficulty of adding liquid to the chamber.

[0023] In addition, the cone with the cross-sectional area gradually increasing away from the air outlet of the inner air inlet section can guide the gas discharged through the inner air inlet section to quickly spread around the cone, thereby increasing the contact area between the gas and the liquid contained in the chamber, and greatly improving the humidification effect of the gas.

[0024] Optionally, a connecting rib is arranged in the chamber, and the connecting rib is used to fix the flow guide member to the cavity wall of the chamber.

[0025] By adopting the technical scheme, since the connecting rib is arranged in the chamber, the connecting rib can fix the flow guide member to the cavity wall of the chamber, thereby increasing the stability of the flow guide member and ensuring the flow guiding effect of the flow guide member.

[0026] Optionally, the flow guide member comprises a drainage rib arranged on the outer periphery of the flow guide member, and the drainage rib is used to guide the liquid into the space between the inner air inlet section and the cavity wall of the chamber, and / or the drainage rib is used to guide the liquid into the space between the inner air outlet section and the cavity wall of the chamber.

[0027] By adopting the above technical solution, since the drainage ribs are arranged on the periphery of the guide member, when liquid is added to the chamber, the liquid flows to the position of the drainage ribs under the action of the guide member, and then the drainage ribs guide the liquid to the gap between the inner air inlet section and the chamber wall or the gap between the inner air outlet section and the chamber wall, so that the liquid quickly falls to the bottom of the chamber, thereby avoiding the possibility that when liquid is added to the chamber, the liquid may converge along the outer surface of the lower part of the guide member to the center of the guide member and then flow out from the air inlet pipe or the air outlet pipe, thereby reducing the difficulty of adding liquid to the chamber and ensuring the cleanliness when adding liquid to the chamber, thereby further improving the user experience. In addition, when the humidification module rotates or shakes, the drainage ribs can also block the liquid to further prevent the liquid from entering the air inlet pipe and the air outlet pipe.

[0028] Optionally, the drainage ribs include a plurality of first drainage ribs and a plurality of second drainage ribs extending in a direction opposite to the first drainage ribs, and the plurality of first drainage ribs and the plurality of second drainage ribs are arranged in sequence and spaced apart and connected to each other.

[0029] By adopting the above technical solution, since there are several first drainage ribs and second drainage ribs, the guiding effect of the drainage ribs on the liquid is increased, so as to further avoid the situation where the liquid may converge along the outer surface of the lower part of the guide member to the center of the guide member and then flow out from the air inlet pipe or the air outlet pipe, thereby further reducing the difficulty of adding liquid to the chamber and further ensuring the cleanliness when adding liquid to the chamber; and the first drainage rib and the second drainage rib are connected to each other, which can improve the structural strength of the drainage rib to ensure the guiding effect of the drainage rib on the liquid.

[0030] Optionally, the shell includes at least two outwardly protruding ribs, and the inner air inlet section and the inner air outlet section are respectively located in one of the ribs, and a first liquid storage tank and a second liquid storage tank are respectively formed between the ribs.

[0031] By adopting the above technical solution, a first liquid storage tank is formed between the inner air inlet section and one of the convex ribs, and a second liquid storage tank is formed between the inner air outlet section and the other convex rib, so that the first liquid storage tank or the second liquid storage tank forms the maximum amount of liquid that can be accommodated in the chamber, so that the convex rib can be used as a reference for the user when adding liquid to the chamber to avoid overflow due to a large amount of liquid added to the chamber. On the one hand, the difficulty of adding liquid to the chamber is reduced, and on the other hand, the liquid is confined to the first liquid storage tank or the second liquid storage tank. The opening of the first liquid storage tank or the second liquid storage tank is smaller, thereby reducing the contact area between the liquid and the air, and the liquid is more affected by surface tension, so it is more difficult for the liquid to overflow from the first liquid storage tank or the second liquid storage tank.

[0032] Optionally, the inner air intake section includes a first extension section extending from the first liquid storage tank, and the first extension section is provided with a plurality of first notches;

[0033] And / or, the inner air outlet section includes a second extension section extending from the second liquid storage tank, and the second extension section is provided with a plurality of second notches.

[0034] By adopting the above technical solution, since the first extension section extends out of the first liquid storage tank and the first extension section is provided with a plurality of first notches, when liquid is added to the chamber through the air outlet pipe, the liquid exceeding the first liquid storage tank can overflow into the air inlet pipe through the first notches and be discharged through the air inlet pipe; and when the humidification device shakes, the first extension section can block the liquid to prevent the liquid from flowing out through the air inlet pipe.

[0035] Since the second extension section extends out of the second liquid storage tank and is provided with a plurality of second notches, when the air inlet pipe adds liquid into the chamber, the liquid exceeding the second liquid storage tank can overflow into the air outlet pipe through the second notches and be discharged through the air outlet pipe; and when the humidification device shakes, the second extension section can block the liquid to prevent the liquid from flowing out through the air outlet pipe.

[0036] Optionally, the air inlet pipe and the air outlet pipe are coaxially arranged.

[0037] By adopting the above technical solution, since the air inlet pipe and the air outlet pipe are coaxially arranged, the stability of the humidification module is increased when the gas flows through the humidification module. At the same time, the connection position of the humidification module and the ventilator is made coaxial to avoid the humidification module from being easily deflected, thereby increasing the stability of the humidification module.

[0038] Optionally, the outer air inlet section is coaxially arranged with the outer air outlet section, and the air outlet of the inner air inlet section is staggered with the air inlet of the inner air outlet section.

[0039] By adopting the above technical solution, since the air outlet of the inner air inlet section and the air inlet of the inner air outlet section are staggered, it is avoided that when liquid is added to the chamber through the air inlet pipe or the air outlet pipe, the liquid is directly discharged through the air outlet pipe or the air inlet pipe, thereby greatly reducing the difficulty of adding liquid to the chamber and improving the efficiency of adding liquid to the chamber.

[0040] Optionally, one side wall of the inner air intake section extends obliquely toward the other side wall, so that the radial area of ​​the inner air intake section gradually decreases along the air intake direction;

[0041] One side wall of the inner air outlet section extends obliquely toward the other side wall, so that the radial area of ​​the inner air outlet section gradually increases along the air outlet direction.

[0042] By adopting the above technical solution, since one side wall of the inner air inlet section extends obliquely toward the other side wall, and one side wall of the inner air outlet section extends obliquely toward the other side wall, the air outlet of the inner air inlet section and the air inlet of the inner air outlet section are staggered. Furthermore, when liquid is added to the chamber through the air inlet pipe or the air outlet pipe, the obliquely arranged wall of the inner air outlet section can guide the liquid or the obliquely arranged wall of the inner air inlet section can guide the liquid so that the liquid flows quickly to the bottom of the chamber. At the same time, the obliquely arranged wall of the inner air outlet section can block and guide the gas flowing out of the inner air inlet section, so that the gas is dispersed, thereby increasing the contact area between the gas and the liquid contained in the chamber, thereby improving the humidification effect.

[0043] Optionally, the air inlet pipe and the air outlet pipe are located on the same side of the shell.

[0044] By adopting the above technical solution, since the air inlet pipe and the air outlet pipe are located on the same side of the shell, it further avoids the situation where the liquid is directly discharged through the air outlet pipe or the air inlet pipe when the liquid is added to the chamber through the air inlet pipe or the air outlet pipe, thereby further reducing the difficulty of adding liquid to the chamber and further improving the effect of adding liquid to the chamber; at the same time, it can also increase the flow path of the gas in the chamber to increase the wetting effect of the gas, thereby improving the humidification effect of the humidification module.

[0045] Optionally, the air inlet pipe and the air outlet pipe are respectively located on opposite sides of the shell, and the shell has a midline parallel to the central axis of the air inlet pipe. The air inlet pipe and the air outlet pipe are respectively located on both sides of the midline, so that the air outlet of the air inlet pipe and the air inlet of the air outlet pipe are staggered.

[0046] By adopting the above technical solution, since the air inlet pipe and the air outlet pipe are divided into two sides located on the center line, the air outlet of the air inlet pipe and the air inlet of the air outlet pipe are staggered. On the one hand, it can avoid the situation where when liquid is added to the chamber through the air inlet pipe or the air outlet pipe, the liquid is directly discharged through the air outlet pipe or the air inlet pipe, thereby reducing the difficulty of adding liquid to the chamber and improving the effect of adding liquid to the chamber; at the same time, it can also increase the flow path of the gas in the chamber to increase the wetting effect on the gas, thereby improving the humidification effect of the humidification module.

[0047] Optionally, an angle θ is formed between the central axis of the air inlet pipe and the central axis of the air outlet pipe, and the angle θ satisfies: 30°≤θ≤90°.

[0048] By adopting the technical scheme, if the included angle between the central axis of the air inlet pipe and the central axis of the air outlet pipe is less than 30°, on the one hand, the pipe diameter of the air inlet pipe and the air outlet pipe is small, which affects the passing efficiency of the gas and the treatment efficiency of the user, and on the other hand, the space between the outer air inlet section and the outer air outlet section is small, which increases the difficulty of connecting the humidification module with the breathing pipeline, the user end or the breathing machine of the user, and further affects the use experience of the user.

[0049] If the included angle between the central axis of the air inlet pipe and the central axis of the air outlet pipe is greater than 90°, when liquid is added into the chamber through the air inlet pipe, the projection of the air inlet pipe in the plumb direction may overlap with the air outlet pipe, so that the liquid may be directly discharged through the air outlet pipe, thereby increasing the difficulty of adding liquid into the chamber; or when liquid is added into the chamber through the air outlet pipe, the projection of the air outlet pipe in the plumb direction may overlap with the air inlet pipe, so that the liquid may be directly discharged through the air inlet pipe, thereby increasing the difficulty of adding liquid into the chamber.

[0050] In the present application, the included angle between the central axis of the air inlet pipe and the central axis of the air outlet pipe is limited to be greater than or equal to 30° and less than or equal to 90°, which on the one hand guarantees the treatment effect of the user and reduces the connection difficulty of the humidification module with the breathing pipeline, the user end or the breathing machine, and on the other hand reduces the difficulty of adding liquid into the chamber.

[0051] Due to the adoption of the above technical scheme, the present application has the following beneficial effects:

[0052] 1. The humidification module in the present application includes a shell, an air inlet pipe and an air outlet pipe, a chamber is formed in the shell, the air inlet pipe includes an outer air inlet section located outside the chamber and an inner air inlet section located inside the chamber, the outer air inlet section and the inner air inlet section are in communication with each other, the air outlet of the inner air inlet section is a certain distance away from the chamber wall, the air outlet pipe includes an outer air outlet section located outside the chamber and an inner air outlet section located inside the chamber, the outer air outlet section and the inner air outlet section are in communication with each other, the air inlet of the inner air outlet section is a certain distance away from the chamber wall, compared with the prior art scheme of using water vapor exhaled by the user, the present application is not affected by the user end itself and the environment, thereby greatly improving the humidification effect and greatly improving the comfort of the user and the use experience of the user; the humidification module in the present application does not need to be provided with adsorbent material, so it is not necessary to replace the adsorbent material, which reduces the treatment cost of the user, avoids the mildew and bacterial growth of the adsorbent material after adsorbing water, thereby improving the use experience of the user; in addition, since the humidification module in the present application does not need to replace the internal components, the wear of the humidification module caused by replacement of the internal components is avoided, thereby prolonging the service life of the humidification module.

[0053] When the humidifier is turned on, the guide member is provided with a cover for the air outlet of the inner air inlet section and the air inlet of the inner air outlet section, so as to prevent the liquid from flowing out through the air inlet pipe and the liquid from flowing out through the air outlet pipe, thereby further improving the user experience.

[0054] 3. The guide member in the present application includes a first guide section, which is a cone. The cross-sectional area of ​​the cone gradually increases along the liquid inlet direction, so that when liquid is added to the chamber, the cone can guide the liquid so that the liquid falls quickly on the edge of the cone, thereby avoiding the liquid remaining on the guide member and flowing out through the air inlet pipe or the air outlet pipe when the humidification module rotates, thereby further improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0056] Figure 1 is a cross-sectional view of the humidification module in this application;

[0057] Figure 2 This is a schematic diagram of adding liquid to the chamber of the humidification module in the present application. The black arrow in the figure indicates the flow direction of the liquid, and the dotted line indicates the liquid;

[0058] Figure 3 The humidification module in this application is composed of Figure 2 A cross-sectional view of the state in FIG. 1 rotated 45° to the right, in which the dotted line represents the liquid;

[0059] Figure 4 The humidification module in this application is composed of Figure 2 The cross-sectional view after the state in FIG is rotated 90° to the right, the black arrow in the figure indicates the flow direction of the gas, and the dotted line indicates the liquid;

[0060] Figure 5 This is a cross-sectional view of a humidification module provided with ribs in this application;

[0061] Figure 6 This is a cross-sectional view of the structure of the humidification module provided with ribs from another perspective in this application. The black arrow in the figure indicates the flow direction of the gas, and the dotted line indicates the liquid;

[0062] Figure 7 For the humidification module in application Figure 6 The cross-sectional view after the state in the figure is rotated 45° to the right, and the dotted line in the figure represents the liquid;

[0063] Figure 8 The humidification module in this application is composed of Figure 6 The cross-sectional view after the state in FIG is rotated 90° to the right, and the dotted line in the figure represents the liquid;

[0064] Figure 9 This is a cross-sectional view of the structure of the humidification module in this application, mainly showing the relationship between the connecting ribs and the drainage ribs;

[0065] Figure 10 This is a structural diagram of the humidification module when the air outlet of the inner air inlet section and the air inlet of the inner air outlet section are staggered in this application;

[0066] Figure 11 This is a schematic structural diagram of the humidification module when the air inlet pipe and the air outlet pipe are located on the same side of the housing in this application;

[0067] Figure 12 This is a structural diagram of the humidification module when the air inlet pipe and the air outlet pipe are located on both sides of the midline in this application;

[0068] Figure 13 This is a structural diagram of the humidification module when the air inlet pipe and the air outlet pipe are set at an angle in this application, wherein the dotted line in the figure represents liquid.

[0069] Reference numerals:

[0070] 1. Shell; 11. Chamber; 111. Connecting rib; 12. Convex rib;

[0071] 2. Air intake pipe; 21. External air intake section; 22. Internal air intake section; 221. First liquid storage tank; 222. First extension section; 223. First notch;

[0072] 3. Air outlet pipe; 31. External air outlet section; 32. Internal air outlet section; 321. Second liquid storage tank; 322. Second extension section; 323. Second notch;

[0073] 4. Flow guide; 41. First flow guide section; 42. Second flow guide section; 43. Drainage rib. DETAILED DESCRIPTION

[0074] In order to more clearly illustrate the overall concept of the present application, a detailed description is given below in an illustrative manner in conjunction with the accompanying drawings.

[0075] The following description sets forth many specific details to facilitate a thorough understanding of the present application. However, the present application may also be implemented in other ways than those described herein, and therefore, the scope of protection of the present application is not limited by the specific embodiments disclosed below. It should be noted that the embodiments of the present application and the features of each embodiment may be combined with each other unless there is a conflict.

[0076] In addition, in the description of the present application, it should be understood that the terms "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present application.

[0077] In this application, unless otherwise expressly specified or limited, terms such as "installed," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0078] In this application, unless otherwise expressly specified and limited, a first feature "above" or "below" a second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0079] Reference Figures 1 to 13, discloses a humidification module for a ventilator, which includes a shell 1, an air inlet pipe 2 and an air outlet pipe 3, wherein a chamber 11 is formed inside the shell 1; the air inlet pipe 2 includes an outer air inlet section 21 located outside the chamber 11 and an inner air inlet section 22 located inside the chamber 11, the outer air inlet section 21 and the inner air inlet section 22 are connected to each other, and the air outlet of the inner air inlet section 22 is at a certain distance from the cavity wall of the chamber 11; the air outlet pipe 3 includes an outer air outlet section 31 located outside the chamber 11 and an inner air outlet section 32 located inside the chamber 11, the outer air outlet section 31 and the inner air outlet section 32 are connected to each other, and the air inlet of the inner air outlet section 32 is at a certain distance from the cavity wall of the chamber 11.

[0080] It should be noted that the above-mentioned "the air outlet of the inner air inlet section 22 is at a certain distance from the cavity wall of the chamber 11" means that the air outlet of the inner air inlet section 22 is at a certain distance from each part of the chamber 11, that is, the air outlet of the inner air inlet section 22 is located on the non-side of the chamber 11; "the air inlet of the inner air outlet section 32 is at a certain distance from the cavity wall of the chamber 11" means that the air inlet of the inner air outlet section 32 is at a certain distance from each part of the chamber 11, that is, the air outlet of the inner air outlet section 32 is located on the non-side of the chamber 11.

[0081] When using the humidification module in the present application, the external air inlet section 21 and the external air outlet section 31 can be connected to two breathing tubes respectively, and the breathing tube connected to the external air inlet section 21 can be connected to the air outlet of the ventilator, and the breathing tube connected to the external air outlet section 31 can be connected to the user end, so that the gas generated by the ventilator enters the chamber 11 through the air inlet pipe 2, and the gas entering the chamber 11 contacts the liquid contained in the chamber 11, so that the liquid contained in the chamber 11 moistens the gas, and the moistened liquid flows to the user end through the air outlet pipe 3 and the breathing tube to treat the user.

[0082] Of course, when using the humidification module of the present application, the outer air outlet section 31 can also be directly connected to the user's breathing mask, or the outer air inlet section 21 can be directly connected to the ventilator. The humidification module of the present application can also be used as a separate component to match a variety of ventilators without humidification function to increase the flexibility of the humidification module.

[0083] Since the humidification module in the present application is arranged in the breathing circuit, the overall volume of the ventilator is reduced, making it easier for users to carry it outside; and when using the humidification module in the present application, the length of the breathing circuit connected to the user end can be made shorter than the connecting circuit connected to the ventilator, or the humidification module can be directly connected to the breathing mask, thereby making the humidification module closer to the user end, thereby greatly reducing the possibility of condensation water in the breathing circuit, thereby improving the user experience.

[0084] At the same time, the humidification module in this application uses the gas generated by the ventilator to directly contact the liquid contained in the chamber 11 to achieve humidification of the gas. Compared with the solution in the prior art that uses water vapor exhaled by the user, this method is not affected by the user's own conditions and the environment, thereby greatly improving the humidification effect and increasing the stability of the humidification effect, thereby greatly improving the user's comfort and improving the user's usage experience.

[0085] Moreover, the humidification module in the present application does not require adsorption materials, and thus does not require replacement of the adsorption materials, which reduces the user's treatment costs and avoids the occurrence of mold and bacterial growth after the adsorption materials absorb water, thereby improving the user's experience; in addition, since the humidification module in the present application does not require replacement of its internal components, it also avoids the occurrence of wear and tear of the humidification module due to replacement of its internal components, thereby extending the service life of the humidification module.

[0086] In addition, the humidification module in the present application omits the setting of adsorption materials. On the one hand, it can reduce the volume and weight of the humidification module to further achieve the effect of being convenient for users to carry. On the other hand, the humidification module can be cleaned and disinfected separately to greatly extend the service life of the humidification module. The installation position is flexible and the installation method is convenient, which greatly reduces the difficulty of use for users and greatly improves the user experience.

[0087] The air outlet of the inner air inlet section 22 in the present application is at a certain distance from the cavity wall of the chamber 11, and the air inlet of the inner air outlet section 32 is at a certain distance from the cavity wall of the chamber 11. Then, when the amount of liquid inside the chamber 11 is at the maximum liquid level, the humidification module is rotated at any angle, and the liquid level is lower than the air outlet of the inner air inlet section 22 and the air inlet of the inner air outlet section 32, so as to avoid the liquid in the chamber 11 from entering the air inlet pipe 2 or the air outlet pipe 3, thereby avoiding the situation where the liquid enters the ventilator through the breathing tube and causes the ventilator to malfunction, so as to ensure the service life of the ventilator, and avoid the situation where the liquid enters the user end through the breathing tube, so as to improve the user experience.

[0088] It should be noted that the humidification module of the present application may or may not have a heating function. As a preferred embodiment, the humidification module in the present application does not have a heating function and is not electrically connected to the main unit of the ventilator, so as to further reduce the volume and weight of the humidification module, thereby further achieving the effect of being easy to carry.

[0089] The present application does not impose any specific limitation on the shape of the housing 1 , which may be a square with rounded corners, a sphere, a cylinder, an elliptical cylinder, or other shapes.

[0090] In a preferred embodiment, referring to Figures 1 to 4 , the inner air inlet section 22 and the inner air outlet section 32 are provided with a flow guide 4, the orthographic projection of the flow guide 4 can cover the air outlet of the inner air inlet section 22 and the air inlet of the inner air outlet section 32, and then when the liquid is added to the chamber 11 through the air inlet pipe 2 or the air outlet pipe 3, the flow guide 4 can shield the air inlet of the inner air outlet section 32 or the air outlet of the inner air inlet section 22, on the one hand, it can avoid the situation that when the liquid is added to the chamber 11 through the air inlet pipe 2, the liquid directly flows out through the air outlet pipe 3, and it can also avoid the situation that when the liquid is added to the chamber 11 through the air outlet pipe 3, the liquid directly flows out through the air inlet pipe 2, so as to greatly reduce the difficulty of adding liquid to the chamber 11 and improve the efficiency of adding liquid to the chamber 11; on the other hand, when the humidification module rotates, the flow guide 4 can also shield the air outlet of the inner air inlet section 22 and the air inlet of the inner air outlet section 32, so as to further avoid the situation that the liquid flows out through the air inlet pipe 2 and the situation that the liquid flows out through the air outlet pipe 3, thereby further improving the user's experience.

[0091] In addition, the flow guide 4 can also block the gas to increase the flow path of the gas in the chamber 11, so that the flow path of the gas in the chamber 11 is more tortuous, so as to increase the wetting effect of the gas and further improve the humidification effect of the humidification module.

[0092] Specifically, the placement position of the humidification module shown in Figure 2 is taken as the first orientation, and the internal cross-sectional view of the humidification tank when it reaches the maximum liquid level is as shown in Figure 2 , the humidification module obtained after rotating the humidification module 45° to the right from the first orientation is as shown in Figure 3 , and the cross-sectional view of the humidification module obtained after rotating 90° to the right is as shown in Figure 4 , it can be seen from the above figures that when the liquid is at the maximum liquid level, the liquid level is lower than the height of the air outlet of the inner air inlet section 22 and the air inlet of the inner air outlet section 32, regardless of the angle of rotation of the humidification module.

[0093] The structure of the flow guide 4 is not limited in the present application, preferably, referring to Figures 1 to 4 , the flow guide 4 comprises a first flow guide section 41, the first flow guide section 41 is a cone, and the cross-sectional area of the cone gradually increases along the liquid inlet direction, so that when the liquid is added to the chamber 11, the cone can guide the liquid to fall quickly along the edge of the cone, thereby avoiding the situation that the liquid remains on the flow guide 4 and flows out through the air inlet pipe 2 or the air outlet pipe 3 when the humidification module rotates, thereby further improving the user's experience.

[0094] Furthermore, the guide member 4 also includes a second guide section 42, and the first guide section 41 and the second guide section 42 are symmetrically arranged along the bottom surface of the cone of the first guide section 41. It can be understood that the first guide section 41 is arranged corresponding to the air outlet of the inner air inlet section 22, and the second guide section 42 is arranged corresponding to the air inlet of the inner air outlet section 32. Then, when liquid is added to the chamber 11 through one of the air inlet pipe 2 and the air outlet pipe 3, the guide member 4 can guide the liquid to increase the flexibility of adding liquid to the chamber 11, while reducing the difficulty of adding liquid to the chamber 11.

[0095] Moreover, the cone whose cross-sectional area gradually increases in the direction of the air outlet away from the inner air inlet section 22 can also guide the gas discharged through the inner air inlet section 22 so that the gas can quickly diffuse around the cone, thereby increasing the contact area between the gas and the liquid contained in the chamber 11, thereby greatly improving the humidification effect of the gas.

[0096] Preferably, the first guide section 41 is coaxially arranged with the air inlet pipe 2 , and the cone bottom area of ​​the first guide section 41 is larger than the air outlet of the air inlet pipe 2 .

[0097] In other embodiments, the flow guide 4 may also be a plate-shaped structure.

[0098] In a preferred embodiment, referring to Figure 3 and Figure 4 A connecting rib 111 is provided in the chamber 11, and the connecting rib 111 is used to fix the guide member 4 to the cavity wall of the chamber 11, that is, the end of the connecting rib 111 away from the guide member 4 is fixedly connected to the cavity wall of the chamber 11, and the end of the connecting rib 111 close to the guide member 4 is fixedly connected to the guide member 4, so as to increase the stability of the guide member 4 and ensure the guiding effect of the guide member 4 on the liquid.

[0099] Preferably, multiple connecting ribs 111 are arranged at intervals along the circumference of the guide member 4 to further increase the stability of the guide member 4. At the same time, the cooperation between the connecting ribs 111 and the guide member 4 can also support the wall of the shell 1 to increase the structural strength of the shell 1.

[0100] The present application does not make any specific limitation on the structure of the connecting rib 111. Preferably, refer to Figure 3 The connecting rib 111 is a wall structure with a certain thickness and is arranged parallel to the liquid inlet direction of the chamber 11 to ensure the flow area between the chamber wall 11 and the periphery of the flow guide 4. The width of the connecting rib 111 at the end away from the flow guide 4 is greater than the width of the connecting rib 111 at the end close to the flow guide 4 to increase the fixing stability of the flow guide 4. In other embodiments, the connecting rib 111 can also be a block-shaped structure or a rod-shaped structure provided in the chamber 11.

[0101] In a preferred embodiment, referring to Figure 4The guide member 4 includes a drainage rib 43 arranged on the outer periphery of the guide member 4, and the drainage rib 43 is used to guide the liquid to the gap between the inner air inlet section 22 and the wall of the chamber 11, and / or the drainage rib 43 is used to guide the liquid to the gap between the inner air outlet section 32 and the wall of the chamber 11.

[0102] Specifically, the drainage rib 43 is arranged on the outer periphery of the first guide section 41 and the second guide section 42. Then, when liquid is added to the chamber 11, the liquid flows to the position of the drainage rib 43 under the action of the first guide section 41 or the second guide section 42, and then the drainage rib 43 guides the liquid to the gap between the inner air inlet section 22 and the wall of the chamber 11 or guides the liquid to the gap between the inner air outlet section 32 and the wall of the chamber 11, so that the liquid quickly falls to the bottom of the chamber 11, thereby avoiding the possibility that when liquid is added to the chamber 11, the liquid may converge along the outer surface of the lower part of the guide member 4 to the center of the guide member 4 and then flow out from the air inlet pipe 2 or the air outlet pipe 3, thereby reducing the difficulty of adding liquid to the chamber 11 and ensuring the cleanliness when adding liquid to the chamber 11, thereby further improving the user experience. In addition, when the humidification module rotates or shakes, the drainage ribs 43 can also block the liquid to further prevent the liquid from entering the air inlet pipe 2 and the air outlet pipe 3.

[0103] In this embodiment, the connection relationship between the connecting rib 111 and the drainage rib 43 is not specifically limited. Preferably, refer to Figure 5 The drainage rib 43 is located between two adjacent connecting ribs 111, and its ends are fixedly connected to the two connecting ribs 111, thereby increasing the structural strength of the connecting ribs 111 and the drainage rib 43. In other embodiments, the middle of the drainage rib 43 in the longitudinal direction may be fixedly connected to the connecting rib 111; or the drainage rib 43 and the connecting rib 111 may not be directly connected, that is, there is a gap between the drainage rib 43 and the connecting rib 111.

[0104] Further, refer to Figure 4 The drainage ribs 43 include a plurality of first drainage ribs and a plurality of second drainage ribs extending in a direction opposite to the first drainage ribs. The plurality of first drainage ribs and the plurality of second drainage ribs are arranged in sequence and are connected to each other.

[0105] It can be understood that the first drainage rib is located on the side of the guide member 4 close to the air inlet pipe 2 compared to the second drainage rib, so that when liquid is added to the chamber 11 through the air inlet pipe 2, the first drainage rib can guide the liquid to the gap between the inner air outlet section 32 and the wall of the chamber 11; the second drainage rib is located on the side of the guide member 4 close to the air outlet pipe 3 compared to the first drainage rib, so that when liquid is added to the chamber 11 through the air outlet pipe 3, the second drainage rib can guide the liquid to the gap between the inner air inlet section 22 and the wall of the chamber 11.

[0106] Since there are several first drainage ribs and second drainage ribs, the guiding effect of the drainage ribs 43 on the liquid is increased, so as to prevent the liquid from converging along the outer surface of the lower part of the guide member 4 to the center of the guide member 4 and then flowing out from the air inlet pipe 2 or the air outlet pipe 3, thereby further reducing the difficulty of adding liquid to the chamber 11 and further ensuring the cleanliness when adding liquid to the chamber 11; and the first drainage ribs and the second drainage ribs are connected to each other, which can improve the structural strength of the drainage ribs 43 to ensure the guiding effect of the drainage ribs 43 on the liquid.

[0107] Better, refer to Figure 4 The first drainage ribs and the second drainage ribs are staggered in the circumferential direction of the guide member 4, that is, there is a second drainage rib between two adjacent first drainage ribs, and there is a first drainage rib between two adjacent second drainage ribs.

[0108] In a preferred embodiment, referring to Figure 4 The shell 1 includes at least two outwardly protruding ribs 12, and the inner air inlet section 22 and the inner air outlet section 32 are respectively located in one of the ribs 12, and a first liquid storage tank 221 and a second liquid storage tank 321 are respectively formed between the ribs 12.

[0109] It can be understood that the inner air inlet section 22 and the inner air outlet section 32 are respectively provided in a one-to-one correspondence with the two ribs 12 .

[0110] Specifically, the shell 1 where the air inlet end of the humidification module is located is called the first end wall, and the shell 1 where the air outlet end is located is called the second end wall. The two ribs 12 are formed by protruding toward the outside of the chamber 11 by partial areas of the first end wall and partial areas of the second end wall, respectively. That is, the radial cross-sectional area of ​​the rib 12 is smaller than the radial cross-sectional area of ​​the shell 1.

[0111] When the air inlet pipe 2 and the air outlet pipe 3 are respectively located on opposite sides of the shell 1, the first liquid storage tank 221 or the second liquid storage tank 321 forms the maximum amount of liquid that can be accommodated in the chamber 11, so that the rib 12 can be used as a reference for the user when adding liquid to the chamber 11 to avoid overflow due to a large amount of liquid added to the chamber 11. On the one hand, the difficulty of adding liquid to the chamber 11 is reduced, and on the other hand, the liquid is confined to the first liquid storage tank 221 or the second liquid storage tank 321. The opening of the first liquid storage tank 221 or the second liquid storage tank 321 is smaller, thereby reducing the area of ​​contact between the liquid and the air, and thereby making the liquid more affected by surface tension, so that it is more difficult for the liquid to overflow from the first liquid storage tank 221 or the second liquid storage tank 321.

[0112] It should be noted that the maximum amount of liquid that can be accommodated in the chamber 11 mentioned in this application does not refer to the maximum capacity of the chamber 11, but refers to the maximum capacity at which the liquid cannot enter the air inlet pipe 2 and the air outlet pipe 3 when the humidification module rotates at any angle.

[0113] In this embodiment, Figure 6 The placement position of the humidification module shown in the figure is taken as the initial position. At this time, the internal cross-section of the humidification module when the liquid level reaches the maximum is as shown in FIG. Figure 6 As shown, the cross-sectional view of the humidification module obtained by rotating the humidification module 45° to the right from the initial orientation is as shown in FIG. Figure 7 As shown, the cross-sectional view of the humidification module obtained by rotating 90° to the right is as follows Figure 8 As shown, it can be seen from the above figure that when the liquid is at the maximum liquid level, the liquid level of the humidifier tank is rotated to any angle, and is lower than the height of the air outlet of the inner air inlet section 22 and the air inlet of the inner air outlet section 32.

[0114] Further, refer to Figure 4 The inner air inlet section 22 includes a first extension section 222 extending from the first liquid storage tank 221. The first extension section 222 is provided with a plurality of first notches 223. When liquid is then added to the chamber 11 through the air outlet pipe 3, the liquid exceeding the first liquid storage tank 221 can overflow into the air inlet pipe 2 through the first notches 223 and be discharged through the air inlet pipe 2; and when the humidification device shakes, the first extension section 222 can block the liquid to prevent the liquid from flowing out through the air inlet pipe 2.

[0115] Further, refer to Figure 4 The inner air outlet section 32 includes a second extension section 322 extending from the second liquid storage tank 321. The second extension section 322 is provided with a plurality of second notches 323, so that when the air inlet pipe 2 adds liquid to the chamber 11, the liquid exceeding the second liquid storage tank 321 can overflow into the air outlet pipe 3 through the second notches 323 and be discharged through the air outlet pipe 3; and when the humidification device shakes, the second extension section 322 can block the liquid to prevent the liquid from flowing out through the air outlet pipe 3.

[0116] In this embodiment, the positional relationship between the air inlet pipe 2 and the air outlet pipe 3 is not specifically limited. Preferably, refer to Figures 1 to 4 The air inlet pipe 2 and the air outlet pipe 3 are coaxially arranged, thereby increasing the stability of the humidification module when the gas flows through the humidification module. At the same time, the connection position of the humidification module and the ventilator is made coaxial to avoid the humidification module from being easily deflected, thereby increasing the stability of the humidification module.

[0117] In other embodiments, the air inlet pipe 2 and the air outlet pipe 3 may be arranged at an angle or their central axes may be arranged parallel to each other and spaced apart.

[0118] In a preferred embodiment, referring to Figure 6 The outer air inlet section 21 is coaxially arranged with the outer air outlet section 31, and the air outlet of the inner air inlet section 22 is staggered with the air inlet of the inner air outlet section 32, thereby avoiding the situation where the liquid is directly discharged through the air outlet pipe 3 or the air inlet pipe 2 when the liquid is added to the chamber 11 through the air inlet pipe 2 or the air outlet pipe 3, thereby greatly reducing the difficulty of adding liquid to the chamber 11 and improving the efficiency of adding liquid to the chamber 11.

[0119] The present application does not make any specific limitation on the manner in which the air outlet of the inner air inlet section 22 and the air inlet of the inner air outlet section 32 are staggered. Preferably, one side wall of the inner air inlet section 22 extends obliquely toward the other side wall, so that the radial area of ​​the inner air inlet section 22 gradually decreases along the air inlet direction; one side wall of the inner air outlet section 32 extends obliquely toward the other side wall, so that the radial area of ​​the inner air outlet section 32 gradually increases along the air outlet direction, thereby achieving the staggered arrangement of the air outlet of the inner air inlet section 22 and the air inlet of the inner air outlet section 32.

[0120] Furthermore, when liquid is added to the chamber 11 through the air inlet pipe 2 or the air outlet pipe 3, the inclined wall of the inner air outlet section 32 or the inclined wall of the inner air inlet section 22 can guide the liquid, allowing the liquid to flow quickly to the bottom of the chamber 11. At the same time, the inclined wall of the inner air outlet section 32 can block and guide the gas flowing out through the inner air inlet section 22, thereby dispersing the gas and increasing the contact area between the gas and the liquid contained in the chamber 11, thereby improving the humidification effect.

[0121] In other embodiments, the inner air inlet section 22 is arranged at an angle to the outer air inlet section 21 and / or the inner air outlet section 32 is arranged at an angle to the outer air outlet section 31; or, the end of the inner air inlet section 22 away from the outer air inlet section 21 is bent and / or the end of the inner air outlet section 32 away from the outer air outlet section 31 is bent, so that the air outlet of the inner air inlet section 22 and the air inlet of the inner air outlet section 32 are staggered.

[0122] In a preferred embodiment, referring to Figure 7 The air inlet pipe 2 and the air outlet pipe 3 are located on the same side of the shell 1, which further avoids the situation where the liquid is directly discharged through the air outlet pipe 3 or the air inlet pipe 2 when the liquid is added to the chamber 11 through the air inlet pipe 2 or the air outlet pipe 3, thereby further reducing the difficulty of adding liquid to the chamber 11 and further improving the effect of adding liquid to the chamber 11; at the same time, it can also increase the flow path of the gas in the chamber 11 to increase the wetting effect of the gas, thereby improving the humidification effect of the humidification module.

[0123] In this embodiment, preferably, the central axis of the air inlet pipe 2 and the central axis of the air outlet pipe 3 are arranged in parallel and spaced apart to increase the flow path of the gas in the chamber 11 and improve the humidification effect of the humidification module.

[0124] In a preferred embodiment, referring to Figure 8 The air inlet pipe 2 and the air outlet pipe 3 are respectively located on opposite sides of the shell 1. The shell 1 has a midline parallel to the central axis of the air inlet pipe 2. The air inlet pipe 2 and the air outlet pipe 3 are divided into two sides located on the midline so that the air outlet of the air inlet pipe 2 and the air inlet of the air outlet pipe 3 are staggered.

[0125] Since the air inlet pipe 2 and the air outlet pipe 3 are divided into two sides located on the midline, the air outlet of the air inlet pipe 2 and the air inlet of the air outlet pipe 3 are staggered. On the one hand, it can avoid the situation where the liquid is directly discharged through the air outlet pipe 3 or the air inlet pipe 2 when liquid is added to the chamber 11 through the air inlet pipe 2 or the air outlet pipe 3, thereby reducing the difficulty of adding liquid to the chamber 11 and improving the effect of adding liquid to the chamber 11; at the same time, it can also increase the flow path of the gas in the chamber 11 to increase the wetting effect on the gas, thereby improving the humidification effect of the humidification module.

[0126] In this embodiment, preferably, the air inlet pipe 2 and the air outlet pipe 3 are arranged in parallel to ensure the effect of adding liquid into the chamber 11. Of course, in other embodiments, the air inlet pipe 2 and the air outlet pipe 3 can also be arranged at an angle.

[0127] In a preferred embodiment, referring to Figure 9 An angle θ is formed between the central axis of the air inlet pipe 2 and the central axis of the air outlet pipe 3, and the angle θ satisfies: 30°≤θ≤90°.

[0128] If the angle formed between the central axis of the air inlet pipe 2 and the central axis of the air outlet pipe 3 is less than 30°, on the one hand, it will cause the diameters of the air inlet pipe 2 and the air outlet pipe 3 to be smaller, thereby affecting the efficiency of gas passage and the treatment efficiency for the user. On the other hand, it will cause the space between the external air inlet section 21 and the external air outlet section 31 to be smaller, thereby increasing the difficulty for the user to connect the humidification module to the breathing circuit, user end or ventilator, and thus affecting the user's experience.

[0129] If the angle formed between the central axis of the air inlet pipe 2 and the central axis of the air outlet pipe 3 is greater than 90°, when liquid is added to the chamber 11 through the air inlet pipe 2, the projection of the air inlet pipe 2 in the plumb direction may overlap with the air outlet pipe 3, so that the liquid may be discharged directly through the air outlet pipe 3, thereby increasing the difficulty of adding liquid to the chamber 11; or when liquid is added to the chamber 11 through the air outlet pipe 3, the projection of the air outlet pipe 3 in the plumb direction may overlap with the air inlet pipe 2, thereby increasing the difficulty of adding liquid to the chamber 11.

[0130] The angle between the central axis of the inlet pipe 2 and the central axis of the outlet pipe 3 is limited to be greater than or equal to 30° and less than or equal to 90° in the present application, which on the one hand ensures the treatment effect on the user and reduces the difficulty of connecting the humidification module with the breathing pipeline, the user end or the breathing machine, and on the other hand reduces the difficulty of filling the liquid into the chamber 11.

[0131] In the present embodiment, preferably, the central axis of the inlet pipe 2 and the central axis of the outlet pipe 3 are arranged perpendicularly, that is, the angle θ between the central axis of the inlet pipe 2 and the central axis of the outlet pipe 3 is equal to 90°, so as to increase the distance between the outer inlet section 21 and the outer outlet section 31, thereby achieving the effect of facilitating the connection of the humidification module with the breathing machine, the user end or the breathing pipeline.

[0132] The present application does not make specific limitation on the manufacturing material of the humidification module, and preferably, the humidification module is made of transparent material, such as acrylic material or transparent PET material, etc., so as to allow the user to observe the amount of liquid in the chamber 11 at any time. In other embodiments, the humidification module can also be made of other non-transparent materials.

[0133] In a preferred embodiment, the shell 1 is provided with a maximum liquid level line, which can serve as a reference warning for the user when filling the liquid into the chamber 11, so as to facilitate the user to fill the chamber 11 with an appropriate amount of liquid.

[0134] It should be noted that there are two ways to fill the liquid into the chamber 11, which are through the inlet pipe 2 and the outlet pipe 3 respectively; and the maximum liquid level line in the present application can be provided with two groups corresponding to the two ways of filling the liquid, so that the user has a reference when filling the chamber 11 with water by any way, or the maximum liquid level line is provided with one group corresponding to any way.

[0135] The unmentioned parts in the present application can be realized by using or referring to the existing technology.

[0136] Each embodiment in the present specification is described in a progressive manner, and the same or similar parts between each embodiment can be referred to each other, and each embodiment mainly describes the difference from other embodiments.

[0137] The above only describes the embodiments of the present application and is not used to limit the present application. The present application can have various changes and modifications for those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the scope of the claims of the present application.

Claims

1. A humidification module for a ventilator, characterized in that: include: A housing (1), wherein a chamber (11) is formed inside the housing (1); an air intake pipe (2), the air intake pipe (2) comprising an outer air intake section (21) located outside the chamber (11) and an inner air intake section (22) located inside the chamber (11), the outer air intake section (21) and the inner air intake section (22) being in communication with each other, and an air outlet of the inner air intake section (22) being at a certain distance from a cavity wall of the chamber (11); An air outlet pipe (3), the air outlet pipe (3) comprising an outgoing air outlet section (31) located outside the chamber (11) and an inner air outlet section (32) located inside the chamber (11), the outgoing air outlet section (31) and the inner air outlet section (32) being connected to each other, and an air inlet of the inner air outlet section (32) being at a certain distance from a cavity wall of the chamber (11).

2. A humidification module for a ventilator according to claim 1, characterized in that, A flow guide (4) is provided between the inner air inlet section (22) and the inner air outlet section (32), and the orthographic projection of the flow guide (4) can cover the air outlet of the inner air inlet section (22) and the air inlet of the inner air outlet section (32).

3. A humidification module for a ventilator according to claim 2, characterized in that, The flow guide (4) comprises a first flow guide section (41), the first flow guide section (41) is a cone, and the cross-sectional area of ​​the cone gradually increases along the liquid inlet direction.

4. A humidification module for a ventilator according to claim 3, characterized in that, The flow guide (4) further comprises a second flow guide section (42), and the first flow guide section (41) and the second flow guide section (42) are symmetrically arranged along the cone bottom surface of the first flow guide section (41).

5. A humidification module for a ventilator according to claim 2, characterized in that, A connecting rib (111) is provided in the chamber (11), and the connecting rib (111) is used to fix the flow guide (4) to the cavity wall of the chamber (11).

6. A humidification module for a ventilator according to claim 2, characterized in that, The flow guide (4) includes a drainage rib (43) provided on the outer periphery of the flow guide (4), the drainage rib (43) being used to guide the liquid into the gap between the inner air inlet section (22) and the wall of the chamber (11), and / or the drainage rib (43) being used to guide the liquid into the gap between the inner air outlet section (32) and the wall of the chamber (11).

7. A humidification module for a ventilator according to claim 6, characterized in that: The drainage ribs (43) include a plurality of first drainage ribs and a plurality of second drainage ribs extending in a direction opposite to the first drainage ribs. The plurality of first drainage ribs and the plurality of second drainage ribs are sequentially spaced and connected to each other.

8. A humidification module for a ventilator according to claim 2, characterized in that, The shell (1) comprises at least two outwardly protruding ribs (12), the inner air inlet section (22) and the inner air outlet section (32) are respectively located in one of the ribs (12), and form a first liquid storage tank (221) and a second liquid storage tank (321) respectively between the ribs (12).

9. A humidification module for a ventilator according to claim 8, characterized in that: The inner air intake section (22) comprises a first extension section (222) extending from the first liquid storage tank (221), and the first extension section (222) is provided with a plurality of first notches (223); And / or, the inner air outlet section (32) includes a second extension section (322) extending from the second liquid storage tank (321), and the second extension section (322) is provided with a plurality of second notches (323).

10. A humidification module for a ventilator according to claim 2, characterized in that: The air inlet pipe (2) and the air outlet pipe (3) are coaxially arranged.

11. A humidification module for a breathing machine according to claim 1 or 2, characterized in that, The outer air inlet section (21) and the outer air outlet section (31) are coaxially arranged, and the air outlet of the inner air inlet section (22) and the air inlet of the inner air outlet section (32) are staggered.

12. A humidification module for a ventilator according to claim 11, characterized in that: One side wall of the inner air intake section (22) extends obliquely toward the other side wall, so that the radial area of ​​the inner air intake section (22) gradually decreases along the air intake direction; One side wall of the inner air outlet section (32) extends obliquely toward the other side wall, so that the radial area of ​​the inner air outlet section (32) gradually increases along the air outlet direction.

13. A humidification module for a ventilator according to claim 1 or 2, characterized in that: The air inlet pipe (2) and the air outlet pipe (3) are located on the same side of the housing (1).

14. A humidification module for a ventilator according to claim 1 or 2, characterized in that: The air inlet pipe (2) and the air outlet pipe (3) are respectively located on opposite sides of the shell (1); the shell (1) has a center line parallel to the central axis of the air inlet pipe (2); the air inlet pipe (2) and the air outlet pipe (3) are respectively located on both sides of the center line, so that the air outlet of the air inlet pipe (2) and the air inlet of the air outlet pipe (3) are staggered.

15. A humidification module for a ventilator according to claim 1 or 2, characterized in that: An included angle θ is formed between the central axis of the air inlet pipe (2) and the central axis of the air outlet pipe (3), and the included angle θ satisfies: 30°≤θ≤90°.

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