Breathing machine

Abstract

The breathing machine comprises a main machine and a humidifying tank, the main machine is provided with an inserting base, the humidifying tank is provided with an inserting section, the inserting section can be in inserting fit with the inserting base in the first direction and can be separated from the inserting base in the second direction opposite to the first direction, and the inserting section is provided with an air outlet adapter pipe; the bayonet socket is provided with a receding groove extending in the first direction, so that when the humidifying tank is matched with the main machine in an inserted mode, the air outlet adapter pipe can enter the receding groove in the first direction. In the process of assembling and disassembling the humidifying tank, the protruding air outlet adapter tube does not need to be disassembled, and the humidifying tank inserted with the air outlet adapter tube can be integrally inserted into the bayonet socket, so that the assembling and disassembling steps of the humidifying tank are simplified, and the disassembling step of the air outlet adapter tube in the process of assembling and disassembling the humidifying tank is omitted. In addition, the risk that internal water leaks from the air outlet due to shaking of the humidifying tank is avoided, the cleaning burden of a user is reduced, and the use experience is improved.

Description

Technical Field

[0001] This application belongs to the field of medical device technology, specifically relating to a ventilator. Background Technology

[0002] A ventilator typically consists of a main unit and a humidifier tank. The main unit contains a blower and an air intake path. Air enters the main unit from the outside, is pressurized by the blower, and then exits from the main unit. The humidifier tank contains a certain amount of water and is connected to the air outlet of the main unit. Air pressurized by the blower and entering the humidifier tank is humidified through contact with the water and the heating system before entering the patient interface.

[0003] For ease of portability and use, some ventilation therapy devices connect the main unit and the humidifier together. Air flows out from the air outlet of the main unit, enters the humidifier, is humidified, then flows out from the outlet of the humidifier and into the breathing circuit, finally reaching the patient interface (e.g., the mask end).

[0004] For example, Chinese patent CN111035839A discloses a humidifier canister with an inlet pipe and an outlet pipe. The inlet pipe is used to connect with the main unit of the ventilator, and the outlet pipe is used to discharge humidified gas for the user. The main unit of the ventilator has a plug-in chamber inside its casing, and the humidifier canister can be inserted into the plug-in chamber through an opening in the main unit casing, thus integrating the humidifier canister inside the main unit.

[0005] However, in the above-mentioned design, the outer casing of the ventilator main unit has an interface corresponding to the air outlet of the humidifier canister. When inserting the humidifier canister into the main unit, it is necessary to ensure that the air outlet on the humidifier canister and the interface on the main unit are accurately aligned; otherwise, the air outlet tube cannot be installed properly, affecting the overall structural stability and the sealing of the air outlet. This places higher demands on the relative accuracy of the air outlet and the interface, not only increasing the difficulty of manufacturing to reduce the impact of processing and assembly errors on their relative position, but also raising the requirements for user installation of the humidifier canister, resulting in poor user convenience and increased installation difficulty.

[0006] Furthermore, since the vent pipe protrudes from the humidifier's outlet, it must be disconnected before installing or removing the humidifier to avoid interference with the main unit. After installation, the vent pipe is then reconnected to the connector and outlet. This further complicates the installation and removal process, increasing the risk of reduced sealing or even failure of the vent pipe due to frequent disconnection and reconnection. On the other hand, manual installation and removal inevitably causes some shaking. Since the vent pipe is disconnected and the outlet is open, this shaking can easily cause water to splash out, contaminating the main unit and the humidifier's surface, increasing the user's cleaning burden. There is also a risk of water splashing onto the blower inside the main unit, increasing the risk of water damage.

[0007] Furthermore, in the above solution, the edge of the connector on the main unit casing is also equipped with a snap-fit ​​structure. When installing the air outlet pipe, it is necessary not only to insert the air outlet pipe into the air outlet of the humidification tank, but also to snap the air outlet pipe into the connector. Therefore, the air outlet pipe requires two steps to fix, and both installation and disassembly are time-consuming and laborious. Utility Model Content

[0008] This application provides a ventilator to solve the problems of difficulty in accurately positioning the air outlet of the humidifier and the plug interface of the main unit during the installation of the humidifier and the main unit, which makes the installation of the air outlet tube difficult, and the air outlet being in an open state during the installation and disassembly of the humidifier, which makes water leakage very easy.

[0009] The technical solution adopted in this application is as follows:

[0010] A ventilator includes a main unit and a humidifier. The main unit has a connector, and the humidifier has a connector section. The connector section is capable of engaging with the connector in a first direction and is capable of separating from the connector in a second direction opposite to the first direction. The connector section is provided with an exhaust pipe, and the connector is provided with a clearance groove extending in the first direction, so that when the humidifier is engaged with the main unit, the exhaust pipe can enter the clearance groove in the first direction.

[0011] The humidification tank includes a tank body with a water storage chamber and a cover assembly capable of covering the water storage chamber. When the humidification tank is plugged into the main unit, at least a portion of the inner wall of the plug-in socket can abut against at least a portion of the outer wall of the humidification tank, so that the cover assembly is fastened to the tank body.

[0012] The connector has pressing protrusions on both sides of the clearance groove. The pressing protrusions protrude towards the inside of the connector. When the humidification tank is plugged into the main unit, the pressing protrusions can abut against the top cover assembly so that the top cover assembly is fastened to the tank body.

[0013] The outer surface of the humidification tank has a guide slide extending in a first direction, and the pressing protrusion abuts against the guide slide.

[0014] The connector also has a heating element, which is floatingly connected to the connector. The humidification tank has a heat-conducting surface, and the heating element abuts against the heat-conducting surface. The heating element and the clearance groove are located on opposite sides of the connector so that the heating element and the pressing protrusion hold the humidification tank.

[0015] The tank has a water inlet that connects to the water storage chamber. A limiting rib is provided around the water inlet. When the humidification tank is plugged into the main unit, the bottom end of the upper cover assembly abuts against the limiting rib.

[0016] One of the inner wall of the connector and the outer wall of the connector section is provided with a guide groove extending in a first direction, and the other is provided with a guide rib that cooperates with the guide groove.

[0017] The guide rib extends along a first direction to have a proximal end and a distal end, wherein, during the process of the humidification tank being inserted into the main unit along the first direction, the proximal end engages with the guide groove before the distal end, and the thickness of the distal end is greater than the thickness of the proximal end.

[0018] The connector has a first end face that is opposite to the humidification tank along a first direction. The connector section has a second end face that is opposite to the first end face. One of the first end face and the second end face is provided with a connector protrusion, and the other end face is provided with a connector groove. The connector protrusion and the connector groove are connected to limit the humidification tank.

[0019] The humidification tank includes a tank body with a water storage chamber and an upper cover assembly that can cover the water storage chamber. The upper cover assembly has an air outlet, and the air outlet adapter pipe is inserted into the air outlet.

[0020] The clearance groove is provided on the upper side wall of the plug-in base, the upper cover assembly is provided with a mounting boss, the air outlet adapter is provided on the mounting boss, and when the humidification tank is plugged into the main unit, the upper surface of the mounting boss is flush with the upper surface of the plug-in base or together forms an arc surface.

[0021] The cover assembly includes a cover body and an unlocking component that is floatingly mounted on the cover body. The cover body is used to close the water storage chamber. The unlocking component has a snap-fit ​​part. The inner wall of the plug seat is provided with a mating part that snaps into the snap-fit ​​part. The unlocking component can move to disengage the snap-fit ​​part from the mating part.

[0022] The unlocking component includes an operation panel and an elastic rib located below the operation panel. The elastic rib has a fixed end that is fixed to the operation panel and a free end that extends obliquely toward the locking portion. The free end can swing around the fixed end to make the operation panel float up and down.

[0023] The cover is provided with a mounting platform, which has a positioning protrusion. The elastic rib is provided with a positioning port that cooperates with the positioning protrusion. The mounting platform is also provided with guide grooves located on both sides of the elastic rib. The guide grooves can cooperate with the two ends of the elastic rib to guide the installation of the unlocking component.

[0024] The humidification tank has a water storage chamber and an air inlet. An air inlet pipe is connected to the air inlet. The air inlet pipe extends into the water storage chamber and is inclined downward or bent. The airflow in the main unit enters the water storage chamber through the air inlet pipe, humidifies the liquid in the water storage chamber, and then flows out through the air outlet pipe.

[0025] The main unit has an air outlet pipe inside, and an air inlet rib extending towards the main unit on the outer periphery of the air inlet. The air inlet rib forms a docking channel, and the air outlet pipe and the air inlet rib are inserted and matched. There is a sealing element between the air outlet pipe and the air inlet rib. The sealing element abuts and seals against the air outlet pipe and the air inlet rib in the radial direction of the air outlet pipe.

[0026] The exhaust pipe extends into the docking channel, and the sealing element is fitted on the outer periphery of the exhaust pipe. It has a sealing lip that protrudes outward along the radial direction of the exhaust pipe, and the sealing lip abuts against the inner wall of the air intake rib for sealing.

[0027] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are as follows:

[0028] 1. In this application, the main unit has a plug-in socket, one end of which extends to the end of the main unit to form a plug-in end with an opening. The plug-in socket has an installation cavity for accommodating the plug-in section of the humidification tank. In use, the user can insert the humidification tank into the installation cavity through the opening, so that at least a part of the humidification tank is located inside the installation cavity, thereby installing the humidification tank inside the main unit and assembling it with the main unit into a whole, which is convenient for use and carrying.

[0029] The side wall of the humidifier is connected to an outlet adapter for external piping to supply humidified gas for user use. The connector is provided with a clearance groove that extends along the first direction to the connector end to form a passage. This clearance groove is not only elongated along the connector direction, but its area is also much larger than the opening area of ​​the outlet on the humidifier. Therefore, when installing the humidifier, the outlet is easier to align with the clearance groove. Furthermore, the horizontally extending structure of the clearance groove can guide the outlet adapter during the humidifier's installation process, making the movement of the humidifier more stable and reliable, and reducing jamming.

[0030] Furthermore, because the clearance groove extends to the plug end to form a passage, it eliminates the need to remove the protruding vent adapter during the installation and removal of the humidification tank. The entire humidification tank with the vent adapter inserted can be inserted into the plug socket. Specifically, after aligning the vent adapter with the clearance groove, the humidification tank is inserted into the installation cavity through the opening. Due to the clearance of the passage, the vent adapter will not interfere with the plug socket, but will enter the clearance groove through the passage. This simplifies the installation and removal steps of the humidification tank, eliminates the need to remove the vent adapter during the installation and removal process, and also reduces the number of times the vent adapter needs to be installed and removed, ensuring the connection stability and sealing of the vent adapter. Furthermore, since the air outlet adapter does not need to be removed during the installation and removal of the humidification tank, the air outlet adapter remains connected to the humidification tank. As a result, the air outlet is not in a completely open state, thus avoiding the risk of water leakage from the air outlet due to shaking of the humidification tank. This reduces the user's cleaning burden, improves the user experience, and prevents water from splashing into the main unit, ensuring the service life of the fan inside the main unit.

[0031] Furthermore, in this application, the clearance groove is only used for the passage of the exhaust pipe. There is no fixed connection between the main unit and the exhaust pipe. The exhaust pipe can form a separate module with the humidification tank and can be installed on the main unit together with the humidification tank or removed from the main unit.

[0032] 2. In a preferred embodiment of this application, the connector has pressing protrusions on both sides of the clearance groove. The pressing protrusions protrude towards the inside of the connector. When the humidification tank is connected to the main unit, the pressing protrusions abut against the top cover assembly, so that the top cover assembly is fastened to the tank body. When the humidification tank is inserted into the connector, the pressing protrusions exert a squeezing force on the humidification tank from the outside towards the inside of the connector, so that the humidification tank is held in place by the pressing protrusions and its position is stable. This also increases the frictional resistance between the humidification tank and the connector, thereby reducing the gap between the outer periphery of the humidification tank and the inner wall of the connector, reducing the shaking of the humidification tank in the connector, and improving the fixed stability of the humidification tank under the squeezing force of the pressing protrusions, reducing the risk of the humidification tank falling out of the connector.

[0033] In addition, the pressing protrusion presses against the top cover assembly, creating a squeezing force towards the tank, making the fit between the top cover assembly and the tank tighter. This not only increases the sealing effect of the top cover assembly on the tank and reduces the shaking of the top cover assembly relative to the tank, but also improves the sealing between the top cover assembly and the tank, preventing water inside the tank from leaking to the outside through the gap between them.

[0034] 3. In a preferred embodiment of this application, the tank has a water inlet communicating with the water storage chamber. A limiting rib is provided around the water inlet. When the humidification tank is installed on the main unit, the bottom end of the upper cover assembly abuts against the limiting rib. The limiting rib surrounding the water inlet not only limits the installation of the upper cover assembly, preventing it from excessively entering the water inlet and ensuring a good sealing condition, but also, after the humidification tank is installed, the pressure exerted on the upper cover assembly by the inner wall of the connector increases the contact force between it and the limiting rib. This ensures that the upper cover assembly remains stable due to the pressure from the limiting rib and the inner wall of the connector on both sides. Furthermore, the increased pressure between the upper cover assembly and the limiting rib improves the sealing performance, preventing water leakage from inside the tank.

[0035] 4. In a preferred embodiment of this application, one of the inner wall of the connector and the outer wall of the humidification tank is provided with a guide groove extending in a first direction, and the other is provided with a guide rib that mates with the guide groove. The guide rib extends in the first direction and has a proximal end and a distal end. During the insertion of the humidification tank into the main unit, the proximal end mates with the guide groove before the distal end, and the thickness of the distal end is greater than that of the proximal end. During the insertion and installation of the humidification tank, the proximal end of the guide rib first enters the guide groove to complete the engagement. As the insertion process progresses, the guide rib slides towards the main unit within the guide groove, and the distal end subsequently mates with the guide groove. The thinner thickness of the proximal end results in a larger gap between the guide rib and the guide groove in the initial stage of insertion of the humidification tank into the main unit. This facilitates the user in aligning and inserting the proximal end into the guide groove, and also allows for real-time adjustment of the position and angle of the humidification tank during insertion, making the insertion process smoother and reducing jamming. As the humidifier is inserted, its distal end gradually engages with the guide groove. Since the distal end is thicker, the gap between it and the guide groove is smaller, and the distal end may even interfere with the inner wall of the guide groove. This not only reduces the shaking of the humidifier in the connector after installation, but also creates an inward squeezing force on the humidifier, which helps to fix the humidifier and improves its stability.

[0036] 5. In a preferred embodiment of this application, a clearance groove is provided on the upper side wall of the connector, the upper cover assembly is provided with a mounting boss, and the air outlet adapter is provided on the mounting boss. When the humidification tank is inserted into the main unit, the upper surface of the mounting boss is flush with the upper surface of the connector or together forms an arc surface. Since the clearance groove is located on the upper side wall of the connector, the air outlet adapter is correspondingly located on the upper side wall of the humidification tank, thereby helping to ensure that the height of the air outlet adapter is higher than the water level in the tank, preventing water from flowing out through the air outlet adapter. Because the humidification tank is inserted into the connector, the cross-sectional area of ​​the humidification tank needs to be designed to be smaller than the cross-sectional area of ​​the mounting cavity. Therefore, after the humidification tank is installed, the two components may have a step difference on the outer surface of the entire unit, affecting aesthetics and feel. By incorporating mounting bosses on the top cover assembly, which correspond to clearance grooves, a portion of the mounting boss extends outward through the clearance grooves to align with the upper surface of the connector, resulting in a smoother and more even upper surface and reducing the step difference between the humidification tank and the connector. Furthermore, the upward-protruding structure of the mounting boss, along with its location at the air outlet, further elevates the air outlet and air outlet adapter, increasing their distance from the water surface within the tank and further reducing the risk of water leakage. Moreover, during the insertion of the humidification tank, the mounting boss can also enter the clearance groove through the access port, allowing the edges of the clearance groove to engage with the mounting boss, providing guidance and improving the insertion stability of the humidification tank. Attached Figure Description

[0037] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0038] Figure 1 This is a schematic diagram of the structure of a ventilator according to one embodiment of this application;

[0039] Figure 2 for Figure 1 Assembly diagram of the main unit and humidifier tank of a ventilator;

[0040] Figure 3 This is a schematic diagram of the host structure according to one embodiment of this application;

[0041] Figure 4 This is an exploded view of the structure of a portion of the host unit according to one embodiment of this application;

[0042] Figure 5 This is a schematic diagram of the structure of a humidification tank according to one embodiment of this application;

[0043] Figure 6 for Figure 5 A schematic diagram of the humidification tank from another perspective;

[0044] Figure 7 This is an exploded view of the structure of a humidification tank according to one embodiment of this application;

[0045] Figure 8 This is a schematic diagram of the tank structure according to one embodiment of this application;

[0046] Figure 9 for Figure 8 A sectional view of the middle tank body;

[0047] Figure 10 This is a schematic diagram of the structure of the top cover assembly according to one embodiment of this application;

[0048] Figure 11 for Figure 10 Exploded view of the upper and middle cover components;

[0049] Figure 12 This is a schematic diagram of the unlocking component according to one embodiment of this application;

[0050] Figure 13 for Figure 12 A structural schematic diagram of the unlocking component from another perspective;

[0051] Figure 14 This is a cross-sectional view of a ventilator according to one embodiment of this application;

[0052] Figure 15 for Figure 14 A magnified view of area A in the middle;

[0053] Figure 16 This is an exploded view of the host structure according to one embodiment of this application;

[0054] Figure 17 for Figure 16 A magnified view of area B in the middle;

[0055] Figure 18 for Figure 16 A magnified view of area C in the middle;

[0056] Figure 19 This is an assembly diagram of the first housing and the second housing according to one embodiment of this application;

[0057] Figure 20 This is a schematic diagram of the host structure according to one embodiment of this application;

[0058] Figure 21 This is a schematic diagram of the bottom structure of the host according to one embodiment of this application;

[0059] Figure 22 This is a schematic diagram of the structure of the first housing according to one embodiment of this application;

[0060] Figure 23 This is a schematic diagram of the structure of the second housing according to one embodiment of this application;

[0061] Figure 24 This is a partial cross-sectional view of a host computer according to one embodiment of this application;

[0062] Figure 25 This is a schematic diagram of the side cover structure according to one embodiment of this application.

[0063] in:

[0064] 1 Main unit; 11 Socket; 111 Socket position; 112 Socket end; 113 Mounting cavity; 114 Opening; 115 Guide groove; 116 First end face; 117 Socket groove; 12 Clearance groove; 121 Through port; 13 Pressing protrusion; 14 Air outlet pipe; 15 First housing; 151 First snap-fit ​​part; 152 Second snap-fit ​​part; 1521 Snap-fit ​​groove; 1522 Insertion groove; 153 Alignment groove; 154 Surrounding rib; 155 Assembly protrusion; 156 Fixing post; 157 Support boss; 158 Connecting part; 16 Second housing; 161 First mating part; 162 Second mating part; 1621 Socket rib; 1622 Mating groove; 163 Alignment protrusion; 164 Assembly groove; 165 Mating post; 17 Mounting end face;

[0065] 2 Humidification tank; 21 Tank body; 211 Insertion section; 212 Grip part; 213 Guide rib; 2131 Proximal end; 2132 Distal end; 214 Water inlet; 215 Limiting rib; 216 Heat-conducting surface; 22 Top cover assembly; 221 Cover body; 2211 Mounting platform; 2212 Positioning protrusion; 2213 Guide groove; 2214 Insertion groove; 222 Unlocking part; 2221 Snap-fit ​​part; 2222 Elastic rib; 2223 Positioning port; 2224 Insertion block; 2225 Fixed end; 2226 Free end; 223 Air outlet; 23 Mounting boss; 24 Air outlet adapter pipe; 25 Air inlet; 26 Guide slide; 27 Second end face; 271 Insertion protrusion; 28 Air inlet pipe; 29 Air inlet surround rib;

[0066] 3. Heating element; 31. Heating component; 32. Heating cover plate; 33. Bracket;

[0067] 4. Elastic support components;

[0068] 5. Seal; 51. Sealing lip;

[0069] 6-card connector;

[0070] 7 Fasteners;

[0071] 8 Side cover; 81 Fixing part; 82 Transmission circuit board; 83 Snap hook; 84 Support rib; 85 Matching rib. Detailed Implementation

[0072] To more clearly illustrate the overall concept of this application, a detailed explanation is provided below with reference to the accompanying drawings.

[0073] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0074] Furthermore, it should be understood in the description of this application that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0075] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0076] In this application, unless otherwise expressly specified and limited, the "above" or "below" of the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. In the description of this specification, references to terms such as "implementation," "example," "a particular embodiment," "example," or "specific example," etc., indicate that the specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples.

[0077] like Figures 1 to 3As shown, a ventilator includes a main unit 1 and a humidifier tank 2. The main unit 1 has a connector 11, and the humidifier tank 2 has a connector section 211. The connector section 211 can be inserted into the connector 11 in a first direction and can be separated from the connector 11 in a second direction opposite to the first direction. The connector section 211 is provided with an air outlet adapter 24, and the connector 11 is provided with a clearance groove 12 extending in the first direction, so that when the humidifier tank 2 is inserted into the main unit 1, the air outlet adapter 24 can enter the clearance groove 12 in the first direction.

[0078] The main unit 1 has a plug-in socket 11, one end of which extends to the end of the main unit 1 to form a plug-in position 111. The plug-in position 111 has a plug-in end 112 with an opening 114 at the end of the main unit 1. The plug-in socket 11 has a mounting cavity 113 inside for accommodating the plug-in section 211 of the humidification tank 2. In use, the user can insert the humidification tank 2 into the mounting cavity 113 through the opening 114, so that at least a part of the humidification tank 2 is located inside the plug-in position 111 of the plug-in socket 11, thereby installing the humidification tank 2 inside the main unit 1 and assembling it with the main unit 1 into a whole, which is convenient for use and carrying.

[0079] Specifically, in one embodiment, such as Figure 2 As shown, the first direction and the second direction are both the length direction of the main unit 1. The plug-in end 112 is located at one end of the length direction of the main unit 1. The humidification tank 2 is inserted into the mounting cavity 113 or taken out from the mounting cavity 113 along the length direction of the main unit 1.

[0080] It should be noted that this application does not limit the assembly method of the humidification tank 2 and the connector 11. In one embodiment, the humidification tank 2 can be completely inserted into the installation cavity 113. That is, after the humidification tank 2 is installed, it will not protrude from the outer surface of the connector 11, so that the volume of the connector 11 is the volume of the whole ventilator, which helps to realize the miniaturization of the ventilator.

[0081] In another embodiment, a portion of the humidifier 2 extends into the mounting cavity 113, so that a portion of the humidifier 2 remains outside the connector 11, allowing the user to easily remove the humidifier 2 from the mounting cavity 113 by holding this portion. Specifically, as... Figure 2 As shown, the humidification tank 2 includes a plug section 211 and a grip section 212. After the humidification tank 2 is installed, the plug section 211 is located inside the mounting cavity 113, and the grip section 212 is located outside the mounting cavity 113. In the first direction, the cross-sectional area of ​​the plug section 211 is smaller than the cross-sectional area of ​​the grip section 212, so that after the plug section 211 enters the mounting cavity 113, the grip section 212 can be flush with the outer surface of the plug seat 11, thereby improving the overall appearance uniformity of the ventilator and reducing the step difference between the outer surfaces of the two components.

[0082] The side wall of the humidification tank 2 is connected to an outlet adapter 24 for external pipeline to supply humidified gas for user use. The plug-in seat 11 is provided with a relief groove 12, which extends along the first direction to the plug-in end 112 to form a passage 121. This makes the relief groove 12 not only long and narrow along the plug-in direction, but also much larger in area than the opening area of ​​the outlet 223 on the humidification tank 2. Thus, when installing the humidification tank 2, the outlet 223 is more likely to be aligned with the relief groove 12. Furthermore, the horizontally extending structure of the relief groove 12 can also guide the outlet adapter 24 during the plug-in installation of the humidification tank 2, making the movement direction of the humidification tank 2 more stable and reliable, and reducing the feeling of jamming.

[0083] Furthermore, since the clearance groove 12 extends to the insertion end 112 to form a passage 121, it is not necessary to remove the protruding exhaust pipe 24 during the installation and disassembly of the humidification tank 2. The humidification tank 2 with the exhaust pipe 24 inserted can be inserted entirely into the insertion seat 11. Specifically, after aligning the exhaust pipe 24 with the clearance groove 12, the humidification tank 2 is inserted into the mounting cavity 113 through the opening 114. Due to the clearance of the passage 121, the exhaust pipe 24 will not interfere with the insertion seat 11, but will enter the clearance groove 12 through the passage 121. This simplifies the installation and disassembly steps of the humidification tank 2, eliminates the need to remove the exhaust pipe 24 during the installation and disassembly process, and also reduces the number of times the exhaust pipe 24 needs to be installed and disassembled, ensuring the connection stability and sealing of the exhaust pipe 24. Furthermore, since the air outlet adapter 24 does not need to be removed during the installation and disassembly of the humidification tank 2, the air outlet adapter 24 is always connected to the humidification tank 2, and the air outlet 223 will not be in a completely open state. This avoids the risk of water leakage from the air outlet 223 due to shaking of the humidification tank 2, reduces the user's cleaning burden, improves the user experience, and prevents water from splashing into the main unit 1, thus ensuring the service life of the fan inside the main unit 1.

[0084] Furthermore, in this application, the clearance groove 12 is only used for the passage of the air outlet adapter 24. There is no fixed connection between the main unit 1 and the air outlet adapter 24. The air outlet adapter 24 can form a separate module with the humidification tank 2 and can be installed on the main unit 1 together with the humidification tank 2 or removed from the main unit 1.

[0085] Preferably, such as Figure 3 , Figure 5 , Figure 6 As shown, the humidification tank 2 includes a tank body 21 with a water storage cavity and an upper cover assembly 22 that can cover the water storage cavity. When the humidification tank 2 is plugged into the main unit 1, at least a portion of the inner wall of the plug seat 11 can abut against at least a portion of the outer wall of the humidification tank 2, so that the upper cover assembly 22 is fastened to the tank body 21.

[0086] When the humidifier 2 is inserted into the connector 11, the inner wall of the connector 11 exerts a squeezing force on the humidifier 2 from the outside towards the inside of the connector 11, which clamps the humidifier 2 and keeps it in a stable position. This also increases the frictional resistance between the humidifier 2 and the connector 11. On the one hand, this reduces the gap between the outer periphery of the humidifier 2 and the inner wall of the connector 11, reducing the shaking of the humidifier 2 within the connector 11. On the other hand, the squeezing force from the inner wall of the connector 11 improves the stability of the humidifier 2 and reduces the risk of the humidifier 2 falling out of the connector 11.

[0087] In addition, the inner wall of the plug-in 11 presses against the upper cover assembly 22, forming a squeezing force on the upper cover assembly 22 toward the tank 21, making the fit between the upper cover assembly 22 and the tank 21 tighter. This not only increases the sealing effect of the upper cover assembly 22 on the tank 21 and reduces the shaking of the upper cover assembly 22 relative to the tank 21, but also improves the sealing between the upper cover assembly 22 and the tank 21, preventing water inside the tank 21 from leaking to the outside through the gap between the two.

[0088] Specifically, a sealing ring is provided between the cover assembly 22 and the tank body 21. The cover assembly 22 can be fitted to the tank body 21 by means of interference fit, snap-fit, etc. Regardless of the method, when the cover assembly 22 is subjected to pressure, it can compress the sealing ring, thereby improving the sealing performance between the cover assembly 22 and the tank body 21.

[0089] As a preferred embodiment of this application, such as Figure 3 , Figure 5 As shown, the plug-in base 11 is provided with pressing protrusions 13 on both sides of the relief groove 12. The pressing protrusions 13 protrude towards the inside of the plug-in base 11. When the humidification tank 2 is plugged into the main unit 1, the pressing protrusions 13 can abut against the upper cover assembly 22 so that the upper cover assembly 22 is fastened to the tank body 21.

[0090] Further, as shown in the figure, such as Figure 3 , Figure 5 As shown, the outer surface of the humidification tank 2 has a guide slide 26 extending along the insertion direction of the humidification tank 2, and the pressing protrusion 13 abuts against the guide slide 26.

[0091] The pressing protrusion 13 can also cooperate with the guide slide 26 to guide the humidifier 2 during assembly and disassembly, ensuring that the humidifier 2 can only move back and forth in the same direction, reducing the shaking generated during the movement of the humidifier 2, making the movement of the humidifier 2 smoother, reducing jamming, and improving the operating feel. At the same time, the pressing protrusion 13 is located on both sides of the clearance groove 12, which can provide good guidance and pressing force for the humidifier 2 on both sides of the clearance groove 12, improving the positioning accuracy of the humidifier 2 and the main unit 1.

[0092] In this application, the pressing protrusion 13 can be a long strip of rib, a protrusion, or a protrusion structure of other shapes, as long as it can cooperate with the guide slide 26 and play a role in guiding the movement of the humidification tank 2. There is no limitation here.

[0093] Of course, the pressing protrusion 13 can also be set on the outer surface of the humidification tank 2, and correspondingly, a guide slide 26 is provided on the inner wall of the plug seat 11 for cooperating with the pressing protrusion 13.

[0094] Preferably, such as Figure 3 As shown, the pressing protrusion 13 is provided on the upper side wall of the connector 11, protruding downward to press the upper cover assembly 22 from top to bottom. Of course, the pressing protrusion 13 can also be provided on the left and right side walls of the connector 11, protruding laterally to press the left and right sides of the humidification tank 2.

[0095] Furthermore, such as Figure 3 As shown, a heating element 3 is also provided inside the plug-in base 11. The heating element 3 is floatingly connected to the plug-in base 11. The humidification tank 2 has a heat-conducting surface 216. The heating element 3 abuts against the heat-conducting surface 216. The heating element 3 and the relief groove 12 are located on opposite sides of the plug-in base 11, so that the heating element 3 and the pressing protrusion 13 clamp the humidification tank 2.

[0096] The heating element 3 is floatingly connected inside the plug-in socket 11, so that after the humidification tank 2 is installed, the heating element 3 can always abut against the heat-conducting surface 216, thereby ensuring the contact effect between the two and thus ensuring the heat transfer efficiency.

[0097] like Figure 4 As shown, an elastic support 4 is provided between the heating element 3 and the inner wall of the connector 11. The elastic support 4 applies a force to the heating element 3 toward the mounting cavity 113 inside the connector 11. When the humidification tank 2 enters the mounting cavity 113, it exerts an outward pressure on the heating element 3, causing the heating element 3 to move away from the humidification tank 2. At this time, the elastic support 4 is compressed. When the humidification tank 2 is removed from the mounting cavity 113, the elastic support 4 pushes the heating element 3 back into the mounting cavity 113 to reset its position.

[0098] Specifically, the elastic support 4 can be a silicone part, a spring, etc. It can be a single part located at the center of the heating element 3, or multiple parts can be evenly arranged along the circumference of the heating element 3 to provide uniform and stable elastic force to the heating element 3.

[0099] Specifically, such as Figure 4As shown, the heating element 3 includes a bracket 33, a heating element 31, and a heating cover plate 32. An elastic support 4 acts on the bracket 33. The heating element 31 is located between the bracket 33 and the heating cover plate 32. The heating cover plate 32 has a clearance opening for the heating element 31 to pass through at least partially. The position of the heating cover plate 32 is fixed, and the heating element 31 and the bracket 33 can float under the action of the elastic support 4.

[0100] Preferably, such as Figure 3 , Figure 9 As shown, the heating element 3 is disposed on the lower side wall of the plug-in seat 11, the heat-conducting surface 216 is located on the lower side wall of the humidification tank 2, and the pressing protrusion 13 and the clearance groove 12 are disposed on the upper side wall of the plug-in seat 11 so that the two clamp the humidification tank 2 from above and below, thereby improving the positional stability of the humidification tank 2.

[0101] Furthermore, such as Figure 7 , Figure 8 As shown, the tank body 21 has a water inlet 214 that connects to the water storage chamber. A limiting rib 215 is provided around the water inlet 214. When the humidification tank 2 is inserted into the main unit 1, the bottom end of the upper cover assembly 22 abuts against the limiting rib 215.

[0102] The limiting rib 215 surrounds the water inlet 214, which not only limits the installation of the upper cover assembly 22, preventing it from excessively entering the water inlet 214, but also ensures a good cover fit and seal. Simultaneously, after the humidification tank 2 is installed, the pressure exerted on the upper cover assembly 22 by the inner wall of the connector 11 increases the contact force between it and the limiting rib 215. This results in two aspects: firstly, the upper cover assembly 22 remains stable due to the pressure from the limiting rib 215 and the pressing protrusion 13 on both sides; secondly, the increased pressure between the upper cover assembly 22 and the limiting rib 215 improves the sealing performance, preventing water leakage from inside the tank 21.

[0103] Specifically, the limiting rib 215 extends from the edge of the water inlet 214 into the interior of the water inlet 214. The limiting rib 215 can be a complete circle surrounding the water inlet 214, or it can be multiple discontinuous raised ribs arranged along the circumference of the water inlet 214.

[0104] It should be noted that the sealing ring can be disposed between the bottom end of the upper cover assembly 22 and the limiting rib 215, so that the upper cover assembly 22 and the limiting rib 215 press the sealing ring together to form a seal. The sealing ring can also be disposed between the outer periphery of the upper cover assembly 22 and the inner wall of the water inlet 214, so that the edges of the upper cover assembly 22 and the water inlet 214 press the sealing ring together laterally to form a seal; no limitation is made here.

[0105] In a preferred embodiment of this application, such as Figure 3 , Figure 5 , Figure 6 As shown, one of the inner wall of the plug-in base 11 and the outer wall of the plug-in section 211 is provided with a guide groove 115 extending along the plug-in direction of the humidification tank 2, and the other is provided with a guide rib 213 that cooperates with the guide groove 115.

[0106] Specifically, such as Figure 3 , Figure 5 As shown, the humidification tank 2 is inserted into the connector 11 in a horizontal direction, and the guide groove 115 extends in a horizontal direction. The guide rib 213 and the guide cooperate to form a motion guide for the insertion, installation and disassembly of the humidification tank 2, so that the humidification tank 2 can only move along the extension direction of the guide groove 115, thereby improving the reliability of the movement and making the installation and disassembly process of the humidification tank 2 smoother.

[0107] Specifically, the guide rib 213 also extends in a long strip along the insertion direction of the humidification tank 2. In one specific embodiment, such as Figure 3 , Figure 5 As shown, guide ribs 213 are disposed on the humidification tank 2, and guide grooves 115 are disposed on the inner wall of the insertion seat 11. Further, guide ribs 213 are respectively located on the left and right side walls of the humidification tank 2, and guide grooves 115 are correspondingly located on the left and right side walls of the humidification tank 2. Of course, guide grooves 115 can also be disposed on the outer wall of the humidification tank 2, and guide ribs 213 can be disposed on the inner wall of the mounting cavity 113.

[0108] Preferably, such as Figure 5 , Figure 6 As shown, the guide rib 213 is provided with multiple limiting protrusions at intervals along the insertion direction. The guide rib 213 forms point contact with the guide groove 115 through the limiting protrusions. When the guide rib 213 enters or slides out of the guide groove 115, the friction between the guide rib 213 and the guide groove 115 can be reduced, making the disassembly and assembly of the humidification tank 2 smoother. In addition, the inlet of the guide groove 115 is set as a flared structure that expands outward from the guide groove 115, or the proximal end 2131 of the guide rib 213 is provided with a guide slope or guide arc surface, which can better align the two and allow the guide rib 213 to smoothly enter the guide groove 115.

[0109] Furthermore, such as Figure 5 , Figure 6 As shown, the guide rib 213 extends along the first direction to have a proximal end 2131 and a distal end 2132. During the process of the humidification tank 2 being inserted into the main unit 1 along the first direction, the proximal end 2131 engages with the guide groove 115 before the distal end 2132, and the thickness of the distal end 2132 is greater than the thickness of the proximal end 2131.

[0110] During the insertion and installation of the humidification tank 2, the proximal end 2131 of the guide rib 213 first enters the guide groove 115 to complete the engagement. As the insertion process proceeds, the guide rib 213 slides towards the main unit 1 within the guide groove 115, and the distal end 2132 subsequently engages with the guide groove 115. The proximal end 2131 is thinner, resulting in a larger gap between the guide rib 213 and the guide groove 115 during the initial insertion of the humidification tank 2 and the main unit 1. This facilitates the user in aligning and inserting the proximal end 2131 and the guide groove 115, and also allows for real-time adjustment of the position and angle of the humidification tank 2 during insertion, ensuring a smoother insertion process and reducing jamming. As the humidifier 2 is inserted, the distal end 2132 gradually engages with the guide groove 115. Since the distal end 2132 is thicker, the gap between it and the guide groove 115 is smaller, and the distal end 2132 may even interfere with the inner wall of the guide groove 115. This not only reduces the shaking of the humidifier 2 in the installation cavity 113 after installation, but also creates an inward squeezing force on the humidifier 2, which helps to fix the humidifier 2 and improves the stability of the humidifier 2.

[0111] Specifically, in one embodiment, such as Figure 5 , Figure 6 As shown, a fastening rib is provided at the distal end 2132 to increase the thickness of the distal end 2132, and a guide surface is provided on the side of the fastening rib facing the proximal end 2131. The guide surface is a sloped surface or an arc surface. In another embodiment, the thickness of the guide rib 213 gradually increases from the proximal end 2131 to the distal end 2132.

[0112] As a preferred embodiment of this application, such as Figure 3 , Figure 7 As shown, the plug-in socket 11 has a first end face 116 opposite to the humidification tank 2 along a first direction, and the plug-in section 211 has a second end face 27 opposite to the first end face 116. One of the first end face 116 and the second end face 27 is provided with a plug-in protrusion 271, and the other is provided with a plug-in groove 117. The plug-in protrusion 271 and the plug-in groove 117 are plugged in to limit the humidification tank 2.

[0113] The insertion and engagement of the protrusion 271 and the insertion slot 117 can further restrict the movement of the humidification tank 2 relative to the insertion seat 11 after the humidification tank 2 is installed, thereby improving the installation stability of the humidification tank 2.

[0114] Specifically, such as Figure 3 , Figure 7As shown, the insertion protrusion 271 is disposed on the first end face 116, and the insertion groove 117 is disposed on the second end face 27. Alternatively, the insertion protrusion 271 may be disposed on the second end face 27, and the insertion groove 117 may be disposed on the first end face 116; this is not limited here. Furthermore, this embodiment does not limit the number of insertion protrusions 271 and insertion grooves 117, nor their arrangement or arrangement on the first end face 116 and the second end face 27.

[0115] Preferably, such as Figure 7 As shown, the humidification tank 2 includes a tank body 21 with a water storage cavity, and an upper cover assembly 22 that can cover the water storage cavity. The upper cover assembly 22 has an air outlet 223, and the air outlet adapter 24 is inserted into the air outlet 223.

[0116] The air outlet adapter 24 is inserted into the air outlet 223, thereby forming a whole with the top cover assembly 22, so that it can be removed from the tank body 21 together with the top cover assembly 22 for easy cleaning and installation.

[0117] Furthermore, such as Figure 1 As shown, the clearance groove 12 is provided on the upper side wall of the plug-in base 11, the upper cover assembly 22 is provided with the mounting boss 23, the air outlet adapter pipe 24 is provided on the mounting boss 23, and when the humidification tank 2 is installed on the main unit 1, the upper surface of the mounting boss 23 is flush with the upper surface of the plug-in base 11 or together forms an arc surface.

[0118] The clearance groove 12 is located on the upper side wall of the connector 11, and the air outlet adapter 24 is correspondingly located on the upper side wall of the humidification tank 2. This helps to ensure that the height of the air outlet adapter 24 is higher than the water level in the tank 21, preventing water from flowing out through the air outlet adapter 24. Since the humidification tank 2 is inserted into the connector 11, the cross-sectional area of ​​the humidification tank 2 needs to be designed to be smaller than the cross-sectional area of ​​the connector 11. Therefore, after the humidification tank 2 is installed, the two components may create a step difference on the outer surface of the whole machine, affecting the aesthetics and feel. By setting a mounting boss 23 on the top cover assembly 22, which corresponds to the clearance groove 12, part of the mounting boss 23 can extend to the outside through the clearance groove 12 to be flush with the upper surface of the connector 11 or to form an arc surface together, thereby making the upper surface of the whole machine smoother and reducing the step difference between the humidification tank 2 and the connector 11. Furthermore, since the mounting boss 23 has an upward-protruding structure and the air outlet 223 is located on the mounting boss 23, the height of the air outlet 223 and the air outlet adapter 24 is further increased, making them farther away from the water surface inside the tank 21, thus further reducing the risk of water leakage. Moreover, during the insertion of the humidification tank 2, the mounting boss 23 can also enter the clearance groove 12 through the through port 121, thereby allowing the edges of the clearance groove 12 on both sides to cooperate with the mounting boss 23 to form a guide, improving the insertion stability of the humidification tank 2.

[0119] Of course, the clearance groove 12 can also be set on the left and right side walls of the plug socket 11, and the air outlet 223 is set corresponding to the clearance groove 12.

[0120] Preferably, such as Figures 5 to 7 , Figure 10 , Figure 11 As shown, the upper cover assembly 22 includes a cover body 221 and an unlocking member 222. The cover body 221 covers the water storage cavity, and the unlocking member 222 has a snap-fit ​​portion 2221. The inner wall of the plug seat 11 is provided with a mating portion that snaps into the snap-fit ​​portion 2221. The unlocking member 222 can move to disengage the snap-fit ​​portion 2221 from the mating portion.

[0121] Specifically, in one embodiment, such as Figure 10 , Figure 11 As shown, the snap-fit ​​part 2221 is a snap hook, and the mating part is a slot. The snap hook extends into the slot to achieve snap-fit ​​fixation and lock the humidifier 2, preventing it from coming out of the mounting cavity 113. The unlocking element 222 is floatingly disposed on the upper cover assembly 22. When the user drives the unlocking element 222 to move by pressing or other means, the snap-fit ​​part 2221 moves together with the unlocking element 222, thereby disengaging from the mating part (the snap hook comes out of the slot). At this time, the humidifier 2 is unlocked from the connector 11, and the user can remove the humidifier 2 from the mounting cavity 113.

[0122] This embodiment does not limit the connection method between the unlocking member 222 and the cover 221. In one embodiment, an elastic member is provided between the unlocking member 222 and the cover 221. The elastic member can be a spring, silicone or other elastic component, so that the unlocking member 222 can float under its own elastic force.

[0123] In another embodiment, such as Figures 11 to 13 As shown, the unlocking component 222 includes an operation panel and an elastic rib 2222 located below the operation panel. The elastic rib 2222 has a fixed end 2225 fixed to the operation panel and a free end 2226 extending obliquely toward the latching portion 2221. The free end 2226 can swing around the fixed end 2225 to make the operation panel float up and down.

[0124] Specifically, such as Figure 12 , Figure 13 As shown, the latching part 2221 is located at one end of the operation panel, and the elastic rib 2222 extends at an angle toward the end where the latching part 2221 is located. Therefore, when the user presses the operation panel, the end where the latching part 2221 is located will float downward, thereby causing the latching part 2221 and the mating part to disengage and complete the unlocking.

[0125] Preferably, such as Figure 11As shown, the upper surface of the cover 221 has a mounting platform 2211, and the unlocking member 222 is floatingly mounted on the mounting platform 2211. The mounting platform 2211 is provided with a positioning protrusion 2212, and the elastic rib 2222 is provided with a positioning port 2223 that cooperates with the positioning protrusion 2212. The mounting platform 2211 is also provided with guide grooves 2213 located on both sides of the elastic rib 2222. The guide grooves 2213 can cooperate with the two ends of the elastic rib 2222 to guide the installation of the unlocking member 222.

[0126] like Figure 11 As shown, the positioning protrusion 2212 is provided with inverted L-shaped ribs on both sides. The opposite side of the two inverted L-shaped ribs forms a guide groove 2213. The guide groove 2213 extends horizontally. When the unlocking member 222 is installed, the two ends of the elastic rib 2222 are respectively located in the guide groove 2213 and move horizontally under the guidance of the inverted L-shaped ribs until the positioning protrusion 2212 and the positioning port 2223 are engaged, so that the unlocking member 222 is fixed to the cover 221.

[0127] Preferably, one of the opposite end faces of the unlocking component 222 and the mounting base 2211 is provided with a plug-in block 2224 and the other is provided with a plug-in groove 2214. The two are plugged in to restrict the relative position of the unlocking component 222 and the cover 221.

[0128] like Figure 10 As shown, the control panel has anti-slip texture to improve the feel of the controls and enhance the user experience.

[0129] As a preferred embodiment of this application, such as Figure 8 , Figure 9 As shown, the humidification tank 2 has a water storage chamber and an air inlet 25. An air inlet pipe 28 is inserted into the air inlet 25. The air inlet pipe 28 extends into the water storage chamber and extends downward or bends. The airflow in the main unit 1 enters the water storage chamber through the air inlet pipe 28, humidifies the liquid in the water storage chamber, and then flows out through the air outlet pipe 24.

[0130] The airflow blown from the blower inside the main unit 1 enters the water storage chamber through the air inlet 25. Guided by the downward-extending air inlet pipe 28, it comes into contact with the water in the storage chamber to complete humidification, and is discharged from the upper air outlet 223. The downward-extending air inlet pipe 28 allows the gas to flow towards the liquid surface, thereby ensuring complete contact between the gas and water, improving the humidification effect. At the same time, it can also prevent water in the storage chamber from flowing into the main unit 1 through the air inlet pipe 28 when the humidification tank 2 is slightly tilted.

[0131] Specifically, the end of the air intake pipe 28 can be bent downwards, or the entire air intake pipe 28 can be tilted downwards and extended so that it gets closer and closer to the liquid surface in the water storage chamber.

[0132] Preferably, such as Figure 14 , Figure 15 As shown, the main unit 1 has an air outlet pipe 14 inside, and an air inlet 25 has an air inlet retaining rib 29 extending towards the main unit 1 on its outer periphery. The air inlet retaining rib 29 forms a docking channel, and the air outlet pipe 14 and the air inlet retaining rib 29 are inserted and fitted together. There is a sealing element 5 between the air outlet pipe 14 and the air inlet retaining rib 29. The sealing element 5 abuts and seals against the air outlet pipe 14 and the air inlet retaining rib 29 respectively in the radial direction of the air outlet pipe 14.

[0133] The exhaust pipe 14 and the intake rib 29 are interlocked, causing them to partially overlap in the axial direction, thereby reducing gas leakage at the connection. Simultaneously, the sealing element 5 is located between them, abutting against the exhaust pipe 14 and the intake rib 29 both internally and externally to achieve radial sealing. Compared to axial sealing, in this embodiment, after the sealing element 5 abuts against the exhaust pipe 14 and the intake rib 29, it deforms under radial pressure, increasing the frictional resistance of the exhaust pipe 14 and the intake rib 29 relative to each other in the axial direction, making the connection more stable.

[0134] Specifically, such as Figure 15 As shown, the air outlet pipe 14 extends into the docking channel, and the sealing element 5 is sleeved on the outer periphery of the air outlet pipe 14 and has a sealing lip 51 that protrudes outward along the radial direction of the air outlet pipe 14. The sealing lip 51 abuts against the inner wall of the air inlet retaining rib 29 for sealing.

[0135] Preferably, such as Figure 15 As shown, a fixed rib is provided on the outer periphery of the air outlet pipe 14, and the sealing element 5 has a receiving groove that cooperates with the fixed rib to improve the assembly stability of the sealing element 5 and the air outlet pipe 14.

[0136] The assembly and disassembly process of the main unit 1 and the humidification tank 2 of this ventilator is as follows: After removing the top cover assembly 22 from the tank body 21, add an appropriate amount of humidifying liquid (such as water) to the tank body 21, fasten the top cover assembly 22 onto the tank body 21, and then insert the humidification tank 2 into the main unit 1 along the first direction. During the insertion process, press the unlocking piece 222 to make the locking part 2221 engage with the mating part. At the same time, press the protrusion 13 to abut against the top cover assembly 22 to ensure that the top cover assembly 22 is tightly fastened to the tank body 21. When separating the humidification tank 2 from the main unit 1, press the unlocking piece 222 and move the humidification tank 22 along the second direction to disengage the locking part 2221 from the mating part, thereby smoothly removing the humidification tank 22 from the main unit 1.

[0137] This application does not limit the assembly method of the host 1, which can be a one-piece structure. In a preferred embodiment, such as Figure 16 , Figure 19As shown, the host 1 includes a first housing 15 and a second housing 16. The first housing 15 and the second housing 16 cooperate to form an installation cavity 113. The first housing 15 is provided with a snap-fit ​​structure, and the second housing 16 is provided with a mating structure that snaps into the snap-fit ​​structure, so that the first housing 15 and the second housing 16 are snapped and fixed.

[0138] The first housing 15 and the second housing 16 are fixed together by snap-fit. On the one hand, while ensuring the stability and reliability of the connection, there is no need to use a large number of additional connecting parts such as screws, which saves production costs. On the other hand, the processing of the snap-fit ​​structure and the mating structure is relatively simple, and the operation during assembly is more convenient, thereby simplifying the assembly steps and improving the assembly efficiency.

[0139] Preferably, the first housing 15 and the second housing 16 are assembled together along a direction perpendicular to the length of the main unit 1. Specifically, for example... Figure 16 , Figure 19 As shown, the first housing 15 and the second housing 16 are joined vertically to form a complete host 1. Of course, the first housing 15 and the second housing 16 can also be joined horizontally to form the host 1, which is not limited here.

[0140] It should be noted that in this application, the first housing 15 and the second housing 16 can be fixed entirely by snap-fit, or they can be fixed by snap-fit ​​in combination with other methods to improve the stability of the fixation.

[0141] Preferably, such as Figures 16 to 18 As shown, the snap-fit ​​structure includes a first snap-fit ​​portion 151 disposed at one end of the first housing 15 along the length direction of the first housing 15, and a second snap-fit ​​portion 152 disposed at the other end of the first housing 15. The mating structure includes a first mating portion 161 disposed corresponding to the first snap-fit ​​portion 151, and a second mating portion 162 disposed corresponding to the second snap-fit ​​portion 152. Because they are disposed at the ends, the first snap-fit ​​portion 151 and the second snap-fit ​​portion 152 can be disposed on the outside of the first housing 15. Similarly, the first mating portion 161 and the second mating portion 162 can also be disposed on the outside of the second housing 16. Thus, during assembly, the assembler can directly see the location of each snap-fit ​​structure, making it easier to complete the snap-fit ​​fixation, further reducing the assembly difficulty and improving the assembly efficiency.

[0142] In this embodiment, the first snap-fit ​​portion 151 and the first mating portion 161, as well as the second snap-fit ​​portion 152 and the second mating portion 162, can be directly snap-fitted and fixed, or they can be snapped together using other snap-fit ​​components. Specifically, in a preferred embodiment, such as... Figures 16 to 19As shown, the first snap-fit ​​portion 151 includes a first snap-fit ​​structure, the first mating portion 161 includes a second snap-fit ​​structure, the first snap-fit ​​structure and the second snap-fit ​​structure are snap-fitted together, at least one of the second snap-fit ​​portion 152 and the second mating portion 162 is provided with a snap-fit ​​groove 1521, the ventilator also includes a snap-fit ​​member 6, the snap-fit ​​member 6 is snap-fitted with the snap-fit ​​groove 1521 to fix the second snap-fit ​​portion 152 and the second mating portion 162.

[0143] like Figure 16 , Figure 19 As shown, the first and second snap-fit ​​structures can be directly engaged to achieve fixation, as... Figures 16 to 18 As shown, the second snap-fit ​​portion 152 and the second mating portion 162 are snap-fitted and fixed by the snap-fit ​​member 6. Specifically, as... Figure 16 , Figure 17 , Figure 18 As shown, the snap-fit ​​part 6 is a clamp. After the second snap-fit ​​part 152 and the second mating part 162 are assembled, the snap-fit ​​part 6 clamps on both sides of the two, thereby clamping and fixing the second snap-fit ​​part 152 and the second mating part 162.

[0144] Specifically, both the first and second buckle structures can be protruding buckles that are locked together, or one of them can be a protruding buckle and the other a buckle groove or buckle interface, so that the buckle can be inserted into the groove or opening to complete the locking.

[0145] Furthermore, such as Figure 17 , Figure 18 As shown, at least one of the second snap-fit ​​portion 152 and the second mating portion 162 is provided with a snap-fit ​​groove 1521, and the snap-fit ​​member 6 is clamped in the snap-fit ​​groove 1521 to maintain a stable connection and prevent the snap-fit ​​member 6 from slipping off.

[0146] Preferably, such as Figures 16 to 18 As shown, the second engaging portion 152 is located below the second mating portion 162. Both the top surface of the second mating portion 162 and the bottom surface of the second engaging portion 152 are provided with engaging grooves 1521, so that the engaging member 6 is engaged in both the top and bottom of the engaging grooves 1521. Alternatively, engaging grooves 1521 can be provided only on the bottom surface of the second engaging portion 152 or the top surface of the second mating portion 162, so that only one end of the engaging member 6 is engaged in the engaging groove 1521, while the other end directly abuts against the end face of the second mating portion 162 or the second engaging portion 152.

[0147] like Figure 17 , Figure 18As shown, the second snap-fit ​​part 152 includes a first rib protruding outward along the length direction of the main unit 1, and the second mating part also includes a second rib protruding outward along the length direction of the main unit 1. One of the first rib and the second rib is provided with a plug rib 1621 on the opposite side, and the other is provided with an insertion groove 1522 so that the two can be plugged and spliced. The snap-fit ​​part 6 tightly fixes the first rib and the second rib from the outside.

[0148] Preferably, such as Figure 16 , Figure 19 , Figure 22 , Figure 23 As shown, the inner wall of one of the first housing 15 and the second housing 16 is provided with an alignment groove 153, and the other housing is provided with an alignment rib 163 extending into the alignment groove 153. One of the first snap-fit ​​part 151 and the first mating part 161 is provided on the inner wall of the alignment groove 153, and the other housing is provided on the outer wall of the alignment rib 163.

[0149] The alignment groove 153 and the alignment rib 163 can play a positioning role in the assembly of the first housing 15 and the second housing 16, improving their positional accuracy. Simultaneously, the first snap-fit ​​part 151 and the first mating part 161 are located at the mating positions of the alignment rib 163 and the alignment groove 153, so that after the alignment rib 163 and the alignment groove 153 are positioned, the first snap-fit ​​part 151 and the first mating part 161 are also aligned or snapped together. Therefore, when assembling the first housing 15 and the second housing 16, only the alignment rib 163 and the alignment groove 153 need to be engaged to simultaneously snap the first snap-fit ​​part 151 and the first mating part 161 together.

[0150] Specifically, in one embodiment, such as Figure 19 As shown, the first housing 15 is located below the second housing 16. An alignment groove 153 is disposed on the inner wall of the first housing 15, and an alignment rib 163 protrudes downwards from the lower edge of the second housing 16 to extend into the alignment groove 153. The alignment groove 153 extends along the length of the main unit 1, and multiple first locking portions 151 are spaced apart along the length of the main unit 1. This achieves multi-point fixation and improves fixation stability.

[0151] Specifically, such as Figure 19 As shown, the first housing 15 has alignment grooves 153 on both sides along the width direction, and a first snap-fit ​​part 151 is provided in each of the alignment grooves 153 on both sides.

[0152] This embodiment does not limit the formation method of the alignment groove 153. In one embodiment, such as Figure 19 , Figure 22As shown, the inner wall of the first housing 15 or the second housing 16 is provided with a surrounding rib 154, which forms an alignment groove 153. Alternatively, the first housing 15 or the second housing 16 may be partially recessed to form the alignment groove 153, which is not limited here.

[0153] like Figure 19 , Figure 22 As shown, the alignment groove 153 is located below the alignment rib 163, and the top of the alignment groove 153 has an opening for the alignment rib 163 to enter and exit.

[0154] In a preferred embodiment, such as Figure 19 As shown, one edge of the first housing 15 and the second housing 16 is provided with an assembly rib 155, and the other edge of the two housings is provided with an assembly groove 164 that engages with the assembly rib 155.

[0155] As a preferred embodiment of this application, such as Figure 24 As shown, the first housing has a fixing channel, the second housing 16 has a fixing hole, and the ventilator also includes a fastener 7, which passes through the fixing channel and is fastened to the fixing hole.

[0156] After the first housing 15 and the second housing 16 are fixed by snap-fit, they are fastened together by fasteners 7, which strengthens the connection between the two and improves the connection stability. Not only does the connection stability of the first housing 15 and the second housing 16 be improved by the dual methods of snap-fit ​​and fastener 7, but it can also significantly reduce the number of fasteners 7 used, saving costs and reducing assembly difficulty.

[0157] Preferably, the fastener 7 is a screw.

[0158] like Figure 21 , Figure 24 As shown, snap-fit ​​structures are disposed at both ends of the first housing 15 along the length direction of the first housing 15, and the fixing channel is located between the two snap-fit ​​structures. Specifically, as shown... Figure 21 As shown, the outer surface of the first housing 15 is provided with a receiving groove, and the fixing channel is located in the receiving groove.

[0159] Specifically, such as Figures 22 to 24 As shown, the first housing 15 has a fixing post 156 protruding into the host, and a fixing channel is located inside the fixing post 156. The second housing also has a mating post 165 extending into the host, and a fixing hole is opened in the mating post 165. The fastener 7 extends into the fixing channel to be fastened to the mating post 165.

[0160] Preferably, the receiving groove is located on the bottom surface of the first housing 15, and the fixing post 156 extends vertically upward so that when the ventilator is placed on the table, the receiving groove and the fastener 7 can be concealed, improving aesthetics. Figure 19 , Figure 21 As shown, the bottom surface of the first housing 15 is provided with a downward protruding support boss 157 to ensure that the ventilator is placed stably, and a receiving groove is provided in the support boss 157.

[0161] As a preferred embodiment of this application, such as Figure 20 As shown, one end of the first housing is provided with a first mating end face, and one end of the second housing is provided with a second mating end face. The first and second mating end faces cooperate to form a mounting end face 17. The ventilator also includes a side cover 8 fixed to the mounting end face, and a sealing element is provided between the side cover 8 and the main unit 1. The mounting end face is located on the opposite side of the mounting cavity 113 along the length direction of the main unit 1.

[0162] This embodiment does not limit the method of fixing the side cover 8 to the main unit 1. Preferably, such as Figure 20 , Figure 25 As shown, the first housing is provided with a connecting part 158, and the side cover 8 is provided with a fixing part 81. After the connecting part 158 ​​and the fixing part 81 are inserted and engaged, the side cover 8 can rotate around the engagement point. When the side cover 8 is rotated to the position of covering the end of the main unit 1, the side cover 8 is locked to the second housing 16 or the internal components of the main unit 1 by fastening components such as screws. In this way, the side cover 3 is simultaneously fixed to at least two of the internal components of the main unit 1, the first housing 15, and the second housing 16, thereby improving the overall structural stability.

[0163] Preferably, such as Figure 25 As shown, the ventilator also includes a transmission circuit board 82. A fixing rib is provided on the side of the side cover 8 facing the main unit 1. The fixing rib forms a mounting position for installing the transmission circuit board 82. The fixing rib has a snap hook 83, which snaps and fixes the transmission circuit board 82.

[0164] like Figure 25 As shown, the snap hooks 83 are located on both sides of the mounting position, and the corresponding sides of the transmission circuit board 82 are provided with clearance grooves. The snap hooks 83 pass through the clearance grooves to snap into the opening edge of the clearance grooves.

[0165] In one embodiment, such as Figure 25 As shown, a support rib 84 protrudes from the mounting position to support the transmission circuit board 82, thereby creating a heat dissipation gap between the transmission circuit board 82 and the side cover 8. Preferably, as... Figure 25 As shown, at least part of the fixing ribs constitute the support ribs 84, which abut against the side of the transmission circuit board 82 facing the side cover 8.

[0166] Preferably, the side cover 8 is provided with a mating rib 85, and the main unit 1 is provided with a mating groove 1622, and the two are inserted into each other. Specifically, as shown in the example... Figure 18 , Figure 25As shown, the mating groove 1622 is provided on the second mating part 162.

[0167] As a preferred embodiment, the installation method of the ventilator housing is as follows: After aligning the first housing 15 and the second housing 16, the first snap-fit ​​part 151 and the first mating part 161 are snap-fitted together, and the second snap-fit ​​part 152 and the second mating part 162 are snap-fitted together to complete the pre-fixation of the first housing 15 and the second housing 16. Then, the first housing 15 and the second housing 16 are fixed by fasteners 7. Then, the side cover 8 is installed. After the fixing part 81 on the side cover 8 is inserted and mated with the connecting part 158, the side cover 8 is rotated around the mating point. When the side cover 8 is rotated to the position of covering the end of the main unit 1, the side cover 8 is locked to the main unit 1 by second fasteners such as screws.

[0168] For any parts not mentioned in this application, existing technologies may be used or referenced.

[0169] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0170] The above description is merely an embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this application should be included within the scope of the claims of this application.

Claims

1. A ventilator, comprising a main unit and a humidification tank, the main unit having a connector, the humidification tank having a connector segment, the connector segment being capable of engaging with the connector in a first direction and being capable of disengaging from the connector in a second direction opposite to the first direction, characterized in that, The plug section is provided with an air outlet adapter, and the plug seat is provided with a clearance groove extending along the first direction, so that when the humidification tank is plugged into the main unit, the air outlet adapter can enter the clearance groove along the first direction.

2. The ventilator according to claim 1, characterized in that, The humidification tank includes a tank body with a water storage cavity and an upper cover assembly capable of covering the water storage cavity. When the humidification tank is plugged into the main unit, at least a portion of the inner wall of the plug-in seat can abut against at least a portion of the outer wall of the humidification tank, so that the upper cover assembly is fastened to the tank body.

3. The ventilator according to claim 2, characterized in that, The plug-in seat has pressing protrusions on both sides of the clearance groove. The pressing protrusions protrude towards the inside of the plug-in seat. When the humidification tank is plugged into the main unit, the pressing protrusions can abut against the top cover assembly so that the top cover assembly is fastened to the tank body.

4. The ventilator according to claim 3, characterized in that, The outer surface of the humidification tank has a guide slide extending along the first direction, and the pressing protrusion abuts against the guide slide.

5. The ventilator according to claim 3, characterized in that, The connector is also provided with a heating element, which is floatingly connected to the connector. The humidification tank has a heat-conducting surface, and the heating element abuts against the heat-conducting surface. The heating element and the clearance groove are located on opposite sides of the connector, so that the heating element and the pressing protrusion clamp the humidification tank.

6. The ventilator according to claim 2, characterized in that, The tank has a water inlet that communicates with the water storage chamber. A limiting rib is provided around the water inlet. When the humidification tank is plugged into the main unit, the bottom end of the upper cover assembly abuts against the limiting rib.

7. The ventilator according to claim 1, characterized in that, One of the inner wall of the connector and the outer wall of the connector segment is provided with a guide groove extending along the first direction, and the other is provided with a guide rib that cooperates with the guide groove.

8. The ventilator according to claim 7, characterized in that, The guide rib extends along the first direction to have a proximal end and a distal end, wherein, during the insertion of the humidification tank into the main unit along the first direction, the proximal end engages with the guide groove before the distal end, and the thickness of the distal end is greater than the thickness of the proximal end.

9. The ventilator according to claim 1, characterized in that, The connector has a first end face that is opposite to the humidification tank along the first direction. The connector segment has a second end face that is opposite to the first end face. One of the first end face and the second end face is provided with a connector protrusion, and the other end face is provided with a connector groove. The connector protrusion and the connector groove are inserted to limit the humidification tank.

10. The ventilator according to claim 1, characterized in that, The humidification tank includes a tank body with a water storage cavity and an upper cover assembly that can cover the water storage cavity. The upper cover assembly has an air outlet, and the air outlet adapter is inserted into the air outlet.

11. The ventilator according to claim 10, characterized in that, The clearance groove is provided on the upper side wall of the plug-in base, the upper cover assembly is provided with a mounting boss, the air outlet adapter is provided on the mounting boss, and when the humidification tank is plugged into the main unit, the upper surface of the mounting boss is flush with the upper surface of the plug-in base or together forms an arc surface.

12. The ventilator according to claim 10, characterized in that, The upper cover assembly includes a cover body and an unlocking component floatingly mounted on the cover body. The cover body is used to cover the water storage cavity. The unlocking component has a snap-fit ​​portion. The inner wall of the plug seat is provided with a mating portion that snaps into the snap-fit ​​portion. The unlocking component can move to disengage the snap-fit ​​portion from the mating portion.

13. The ventilator according to claim 12, characterized in that, The unlocking component includes an operation panel and an elastic rib located below the operation panel. The elastic rib has a fixed end that is fixed to the operation panel and a free end that extends obliquely toward the latching portion. The free end is capable of swinging around the fixed end to make the operation panel float up and down.

14. The ventilator according to claim 13, characterized in that, The cover is provided with a mounting platform, the mounting platform is provided with a positioning protrusion, the elastic rib is provided with a positioning port that cooperates with the positioning protrusion, the mounting platform is also provided with guide grooves located on both sides of the elastic rib, the guide grooves can cooperate with the two ends of the elastic rib to guide the installation of the unlocking component.

15. The ventilator according to claim 1, characterized in that, The humidification tank has a water storage chamber and an air inlet. An air inlet pipe is inserted into the air inlet and extends into the water storage chamber, tilting downwards or bending downwards. The airflow in the main unit enters the water storage chamber through the air inlet pipe, humidifies the liquid in the water storage chamber, and then flows out through the air outlet pipe.

16. The ventilator according to claim 15, characterized in that, The main unit has an air outlet pipe inside, and the outer periphery of the air inlet has an air inlet retaining rib extending toward the main unit. The air inlet retaining rib forms a docking channel. The air outlet pipe and the air inlet retaining rib are inserted and fitted together. There is a sealing element between the air outlet pipe and the air inlet retaining rib. The sealing element abuts and seals against the air outlet pipe and the air inlet retaining rib in the radial direction of the air outlet pipe.

17. The ventilator according to claim 16, characterized in that, The air outlet pipe extends into the docking channel, the sealing element is sleeved on the outer periphery of the air outlet pipe, and has a sealing lip that protrudes outward along the radial direction of the air outlet pipe, the sealing lip abutting and sealing against the inner wall of the air inlet rib.

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