Air outlet pipe assembly for fan and breathing machine

Abstract

The air outlet pipe assembly comprises an air outlet pipe made of flexible materials, the air outlet pipe comprises a pipe body and a supporting part at least partially surrounding the pipe body, one end of the pipe body is used for being connected with an air outlet of the fan, and a radial gap is formed between the supporting part and the outer wall of the pipe body to form a deformation space. The supporting part is used for being connected with an internal air duct structure of the respirator. The pipe body is directly in butt joint with the draught fan, the air duct structure in the breathing machine is not directly connected with the pipe body but connected to the supporting part, and the gap is formed between the supporting part and the pipe body, so that the situation that when the pipe body vibrates along with the draught fan, the supporting part is directly driven to move is avoided, and vibration can be relieved through the deformation space and the connecting part of the supporting part and the pipe body; therefore, the position of the supporting part is kept stable, and the connecting effect with the air duct structure is kept.

Description

Technical Field

[0001] This utility model belongs to the field of medical equipment technology, specifically relating to an air outlet pipe assembly for a fan and a ventilator. Background Technology

[0002] A ventilator typically consists of a main unit and a humidifier tank. The main unit contains a fan and an air intake path. Air enters the main unit from the outside, is pressurized by the fan, and then discharged 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 by contact with the water and the heating system before entering the patient interface.

[0003] However, the fan generates vibration during operation. Therefore, a flexible air outlet pipe is typically installed at the fan's outlet and fixed to the internal airflow structure of the ventilator or to the humidifier tank. To ensure the stability of the air outlet pipe's connection, existing technology usually incorporates a pleated section in the axial direction of the pipe. This pleated section provides a certain deformation allowance, allowing it to be stretched or contracted. For example, when the fan vibrates axially, the pleated section can be stretched or collapsed to compensate for the fan's movement. Similarly, when the fan vibrates radially, the pleated section can be stretched to compensate for the fan's radial movement.

[0004] However, the pleated section not only causes the internal diameter of the exhaust pipe to change at the pleated section, but also forms a relatively sharp corner at the pleated section. This causes some of the airflow to turn at a large angle when it passes through, which in turn disturbs the overall airflow and easily creates turbulence in the exhaust pipe. This not only affects the efficiency of airflow, but also generates more noise, affecting the user experience. Utility Model Content

[0005] This invention provides an air outlet pipe assembly for a fan and a ventilator to solve the problems that fan vibration can affect the connection stability of the air outlet pipe, as well as the low flow efficiency and high noise of airflow within the air outlet pipe.

[0006] The technical solution adopted in this utility model is as follows:

[0007] An air outlet pipe assembly for a fan includes an air outlet pipe made of a flexible material. The air outlet pipe includes a pipe body and a support portion that at least partially surrounds the pipe body. One end of the pipe body is used to connect to the air outlet of the fan. A radial gap is formed between the support portion and the outer wall of the pipe body to create a deformation space. The support portion is used to connect to the internal air duct structure of the ventilator.

[0008] The support section includes a deformable section connected to the pipe body and a free section connected to the deformable section. The free section has a radial gap with the outer wall of the pipe body and forms a deformation space.

[0009] The deformation section includes at least one fold to provide allowance for axial and radial movement of the tube body.

[0010] The end of the pipe away from the fan is folded outward along the radial direction of the pipe to form a support.

[0011] The pipe body has an enlarged diameter section and a guide section. The inner diameter of the enlarged diameter section is larger than the inner diameter of the guide section. The enlarged diameter section is fitted on the outside of the fan outlet pipe, and the inner diameter of the guide section is the same as the inner diameter of the fan outlet.

[0012] The expanded diameter section is equipped with a limiting groove or limiting protrusion for use in conjunction with the fan outlet duct for limiting movement.

[0013] The outlet tube assembly also includes a mounting bracket, which is more rigid than the outlet tube. The support is connected to the internal air duct structure of the ventilator via the mounting bracket.

[0014] The support includes a deformable section connected to the pipe body and a free section connected to the deformable section. The free section has a radial gap with the outer wall of the pipe body and forms a deformation space. The mounting bracket and the free section are detachably fixed.

[0015] The free section is provided with mounting ribs, one of which, the mounting rib and the mounting bracket, is provided with a plug-in protrusion, and the other is provided with a plug-in interface. The plug-in protrusion and the plug-in interface are plugged into each other along the radial direction of the tube body. When the plug-in protrusion and the plug-in interface are plugged into each other, at least part of the plug-in protrusion can be used to cooperate with the internal air duct structure of the ventilator.

[0016] There are two sets of insertion protrusions, which are located on both sides of the outlet pipe along the radial direction of the pipe body. The insertion interface and the insertion protrusion are set one-to-one.

[0017] The support includes a deformable section connected to the pipe body and a free section connected to the deformable section. One of the free section and the mounting bracket is provided with a positioning protrusion, and the other is provided with a positioning port. The positioning protrusion and the positioning port are inserted and fitted along the axial direction of the pipe body.

[0018] The support includes a deformable section connected to the pipe body and a free section connected to the deformable section. At least part of the mounting bracket is embedded inside the free section, and the free section and the mounting bracket are integrally formed.

[0019] The free section and / or mounting bracket have mounting protrusions or mounting grooves extending circumferentially along the tube body for connection to the internal air duct structure of the ventilator.

[0020] This utility model also discloses a ventilator, including a main unit and a humidification device. The main unit includes an outer shell with a accommodating cavity and an inner shell placed inside the accommodating cavity. A fan is disposed inside the inner shell, and the device also includes the aforementioned air outlet pipe assembly for the fan. One end of the pipe is connected to the air outlet of the fan, and the support part is connected to the inner shell.

[0021] Due to the adoption of the above technical solution, the beneficial effects achieved by this utility model are as follows:

[0022] 1. In this utility model, the air outlet pipe includes a pipe body and a support portion at least partially surrounding the outside of the pipe body. The support portion is used to connect to the internal air duct structure of the ventilator, and there is a radial gap between it and the pipe body. One end of the pipe body is connected to the air outlet of the fan, and the pipe body has an air outlet channel inside. Therefore, when the fan shakes, it will cause the pipe body to shake synchronously. The radial gap between the pipe body and the support portion forms a deformation space, which allows the pipe body to move relative to the support portion without causing the support portion to move significantly. This maintains the connection stability and sealing of the support portion and the air duct structure. For example, when the fan shakes in the radial direction of the pipe body, the pipe body can move within the deformation space on the outer periphery under the drive of the end connected to the fan. When the fan shakes in the axial direction of the pipe body, the pipe body can move axially relative to the support portion, thus providing space for the movement of the pipe body relative to the support portion. This compensates for the fan's axial and radial shaking and maintains the connection stability and sealing of the air outlet pipe.

[0023] Furthermore, since the support is located on the outside of the pipe body, its placement does not significantly alter the cross-sectional area of ​​the air outlet channel inside the pipe. This results in a more uniform cross-sectional area along the axial direction, preventing abrupt changes and the formation of sharp airflow bends within the outlet channel. Consequently, the airflow does not undergo large-angle turns as it passes through the outlet pipe, maintaining laminar flow and ensuring efficient airflow. Simultaneously, the stable airflow direction and velocity prevent noise generation due to airflow collisions, reducing noise within the outlet pipe and improving the user experience.

[0024] 2. In a preferred embodiment of this utility model, the support includes a deformable section connected to the tube body and a free section connected to the deformable section. A radial gap exists between the free section and the outer wall of the tube body, forming a deformation space. The free section connects to the internal air duct structure of the ventilator. The deformation space, located between the free section and the outer wall of the tube body, provides space for the movement of the tube body relative to the support. During the movement of the tube body with the fan, it avoids easy contact with the free section, preventing direct transmission of vibration to the free section, while also causing the free section to move significantly, maintaining its positional stability and thus ensuring the connection stability between the device and the air duct structure. The deformable section connects the tube body and the free section and has a certain deformation margin. Therefore, when the tube body undergoes axial or radial movement, the deformable section can deform to a certain extent, being stretched or contracted to compensate for the movement of the tube body and maintain the positional stability of the support.

[0025] 3. In a preferred embodiment of this utility model, the end of the tube furthest from the fan is folded outward along the radial direction of the tube to form a support portion. Folding one end of the tube outward towards the air outlet channel to form a support portion not only creates a deformation space between the support portion and the tube, but also reduces the overall radial dimension of the outlet tube, helping to save internal space in the ventilator. Simultaneously, the support portion, folded from the end of the tube, does not occupy internal space and eliminates the need for complex external structures, simplifying the manufacturing of the outlet tube and reducing production costs. When the tube moves radially with the fan, it oscillates relative to the support portion within the deformation space. When the tube moves axially with the fan, the connection between the support portion and the tube lengthens to compensate for the tube's movement.

[0026] 4. In a preferred embodiment of this utility model, the outlet tube assembly further includes a mounting bracket. The rigidity of the mounting bracket is greater than that of the outlet tube, and the support portion is connected to the internal air duct structure of the ventilator via the mounting bracket. Because the mounting bracket is more rigid than the outlet tube, and the outlet tube is connected to the air duct structure via the mounting bracket, it is less prone to deformation or positional shift during tube movement or deformation, thus maintaining a stable connection with the air duct structure. Simultaneously, the rigid connection also provides support to one end of the outlet tube, thereby ensuring the connection effect between the outlet tube and the air duct structure and reducing the probability of the outlet tube becoming detached from the air duct structure.

[0027] 5. In a preferred embodiment of this utility model, the support includes a deformable section connected to the pipe body and a free section connected to the deformable section. At least a portion of the mounting bracket is embedded inside the free section, and the free section and the mounting bracket are integrally formed. The mounting bracket can be formed by injection molding or other methods to at least partially cover the outside of the free section, which eliminates assembly steps, thereby reducing assembly difficulty and improving assembly efficiency. It also facilitates cleaning by the user. Furthermore, it ensures the connection between the mounting bracket and the outlet pipe during airflow and fan vibration, preventing the mounting bracket from detaching from the outlet pipe. Attached Figure Description

[0028] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0029] Figure 1 This is a cross-sectional view of the air outlet pipe according to one embodiment of the present invention;

[0030] Figure 2 This is an exploded view of the structure of the vent pipe assembly according to one embodiment of the present invention;

[0031] Figure 3 This is a schematic diagram of the structure of the air outlet pipe assembly according to one embodiment of the present invention;

[0032] Figure 4 for Figure 3 Cross-sectional view of the central vent assembly;

[0033] Figure 5 This is a schematic diagram of the air outlet pipe assembly according to another embodiment of the present invention;

[0034] Figure 6 for Figure 5 Cross-sectional view of the central vent assembly;

[0035] Figure 7 This is a schematic diagram of the structure of a ventilator according to one embodiment of the present invention;

[0036] Figure 8 This is a cross-sectional view of a portion of the ventilator structure according to one embodiment of the present invention;

[0037] Figure 9 for Figure 8 A magnified view of area A in the middle.

[0038] in:

[0039] 1. Exhaust pipe; 11. Pipe body; 111. Expanded diameter section; 112. Air guide section; 113. Limiting groove; 114. Deformation space; 12. Support part; 121. Deformation section; 122. Free section; 123. Mounting rib; 124. Insertion interface; 125. Positioning port;

[0040] 2. Mounting bracket; 21. Insertion protrusion; 22. Stop rib; 23. Positioning protrusion; 24. Mounting protrusion;

[0041] 3. Main unit; 31. Outer casing; 32. Inner casing;

[0042] 4. Humidification device;

[0043] 5. Fans. Detailed Implementation

[0044] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings.

[0045] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0046] Furthermore, it should be understood in the description of this utility model 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. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0047] In this utility model, unless otherwise explicitly 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 utility model according to the specific circumstances.

[0048] In this invention, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "implementation," "example," "aspect," or "specific example" indicate that a 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 invention. 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 may be combined in any suitable manner in one or more embodiments or examples.

[0049] like Figure 1 As shown, a blower 5 uses an air outlet pipe 1 assembly, which includes an air outlet pipe 1 made of flexible material. The air outlet pipe 1 includes a pipe body 11 and a support portion 12 that at least partially surrounds the pipe body 11. One end of the pipe body 11 is used to connect to the air outlet of the blower 5. The support portion 12 and the outer wall of the pipe body 11 have a radial gap to form a deformation space 114. The support portion 12 is used to connect to the internal air duct structure of the ventilator.

[0050] Preferably, the air outlet pipe 1 is made of silicone, which makes it soft, has good noise reduction effect, and also has good elastic deformation ability, so as to facilitate connection with the fan 5 and the air duct structure.

[0051] In this invention, the air outlet pipe 1 includes a pipe body 11 and a support portion 12 that at least partially surrounds the outside of the pipe body 11. The support portion 12 is used to connect to the internal air duct structure of the ventilator, and there is a radial gap between it and the pipe body 11. One end of the pipe body 11 is connected to the air outlet of the fan 5. The pipe body 11 has an air outlet channel inside. Therefore, when the fan 5 shakes, it will cause the pipe body 11 to shake synchronously. The radial gap between the pipe body 11 and the support portion 12 forms a deformation space 114, which allows the pipe body 11 to move relative to the support portion 12 without causing the support portion 12 to move significantly. This maintains the connection stability and sealing of the support portion 12 and the air duct structure. For example, when the fan 5 shakes in the radial direction of the pipe body 11, the pipe body 11 can move in the deformation space 114 on the outer periphery under the drive of the end connected to the fan 5. When the fan 5 shakes in the axial direction of the pipe body 11, the pipe body 11 can move axially relative to the support part 12, thereby providing space for the movement of the pipe body 11 relative to the support part 12, which can compensate for the shaking of the fan 5 in the axial and radial directions and maintain the connection stability and sealing of the air outlet pipe 1.

[0052] Furthermore, since the support portion 12 is located on the outside of the pipe body 11, its arrangement does not significantly alter the flow cross-sectional area of ​​the air outlet channel inside the pipe body 11. This results in a more uniform and consistent flow cross-sectional area along the axial direction, preventing abrupt changes in local areas and thus avoiding the formation of sharp airflow bends within the air outlet channel. Consequently, the airflow does not undergo large-angle turns when passing through the outlet pipe 1, maintaining a laminar flow state and ensuring efficient airflow. Simultaneously, due to the stable airflow direction and velocity, noise is not generated due to airflow collisions, thereby reducing noise generation within the outlet pipe 1 and improving the user experience.

[0053] In this invention, the tube body 11 is directly connected to the fan 5, while the air duct structure inside the ventilator is not directly connected to the tube body 11, but is connected to the support part 12. There is a gap between the support part 12 and the tube body 11, which prevents the support part 12 from moving directly when the tube body 11 vibrates with the fan 5. The vibration is alleviated by the deformation space 114 and the connection part between the support part 12 and the tube body 11, thereby maintaining the stability of the position of the support part 12 and maintaining the connection effect with the air duct structure.

[0054] As a preferred embodiment of this utility model, such as Figure 1 As shown, the support portion 12 includes a deformable section 121 connected to the tube body 11 and a free section 122 connected to the deformable section 121. The free section 122 has a radial gap with the outer wall of the tube body 11 and forms a deformable space 114.

[0055] The free section 122 is used to connect with the internal air duct structure of the ventilator. The deformation space 114 is located between the free section 122 and the outer wall of the tube 11, providing space for the movement of the tube 11 relative to the support 12. During the movement of the tube 11 with the fan 5, it will not easily come into contact with the free section 122, avoiding direct transmission of vibration to the free section 122, and will also cause the free section 122 to move significantly, keeping the free section 122 in a stable position, thereby maintaining the stability of its connection with the air duct structure. The deformation section 121 connects the tube 11 and the free section 122, and has a certain deformation margin. Therefore, when the tube 11 moves axially or radially, the deformation section 121 can deform to a certain extent and be stretched or contracted to compensate for the amount of movement of the tube 11 and keep the support 12 in a stable position.

[0056] Preferably, the free section 122 extends along the axial direction of the pipe body 11 to reduce the overall radial dimension of the exhaust pipe 1, making the exhaust pipe 1 more compact and occupying less internal space in the main unit 3, thereby helping to achieve miniaturization of the whole machine.

[0057] In a preferred embodiment, such as Figure 1As shown, the deformation section 121 includes at least one fold to provide the tube body 11 with allowance for axial and radial movement.

[0058] The partial folding of the deformable segment 121 causes the deformable segments 121 to partially stack, thereby providing a margin for the axial and radial movement of the tube body 11. When the tube body 11 moves, the folded part can be stretched to compensate for the movement of the tube body 11, so that the position of the free segment 122 will not change significantly, and the free segment 122 will not be subjected to a large tensile force.

[0059] The folded portion can be folded in the axial direction or in the radial direction, or the deformable segment 121 can be folded and stacked arbitrarily, without any limitation.

[0060] Preferably, such as Figure 1 As shown, the entire deformed segment constitutes a folded section; of course, a portion of the deformed segment can also constitute a folded section.

[0061] Furthermore, such as Figure 1 As shown, the cross-section of the folded part is semi-circular, arc-shaped, or has a bending angle.

[0062] Specifically, such as Figure 1 As shown, in one embodiment, the cross-section of the folded portion is arc-shaped to make the transition of the folded edge smoother, facilitating processing and allowing it to unfold more smoothly under tensile force. In another embodiment, the folded portion can also be folded and stacked in a serrated manner, which is not limited here.

[0063] Preferably, such as Figure 1 As shown, the end of the pipe body 11 away from the fan 5 is folded outward along the radial direction of the pipe body 11 to form a support part 12.

[0064] One end of the tube 11 is folded outwards towards the air outlet to form a support portion 12. This not only creates a deformation space 114 between the support portion 12 and the tube 11, but also results in a smaller overall radial dimension of the outlet tube 1, helping to save internal space in the ventilator. Simultaneously, the support portion 12, folded from the end of the tube 11, does not occupy internal space and eliminates the need for complex external structures, simplifying the manufacturing of the outlet tube 1 and reducing production costs. When the tube 11 moves radially with the fan 5, a portion of the tube 11 oscillates relative to the support portion 12 within the deformation space 114. When the tube 11 moves axially with the fan 5, it causes the connection between the support portion 12 and the tube 11 to lengthen, compensating for the movement of the tube 11.

[0065] Of course, the deformable section 121 can also be connected to the middle section of the pipe body 11, so that the deformable section 121 extends outward along the radial direction of the pipe body 11, and the free section 122 extends along the axial direction of the pipe body 11.

[0066] As a preferred embodiment of this utility model, such as Figure 1 As shown, the pipe body 11 has an enlarged diameter section 111 and an air guide section 112. The inner diameter of the enlarged diameter section 111 is larger than the inner diameter of the air guide section 112. The enlarged diameter section 111 is fitted on the outside of the air outlet pipe of the fan 5. The inner diameter of the air guide section 112 is the same as the inner diameter of the air outlet of the fan 5.

[0067] The inner diameter of the expansion section 111 is relatively large, allowing it to be fitted onto the outside of the air outlet duct of the fan 5, forming a plug-in fit and making the connection between the two more stable. When the air outlet duct extends into the expansion section 111, the inner diameter of the air outlet is the same as the inner diameter of the guide section 112, allowing the airflow from the air outlet to directly enter the humidification device 4 through the guide section 112. The inner diameter of the flow channel along the way remains unchanged, preventing significant diffusion and convergence of the airflow as it passes through, thus maintaining high flow efficiency and improving the efficiency of the airflow entering the humidification device 4.

[0068] Preferably, such as Figure 1 , Figure 9 As shown, the expanded diameter section 111 is provided with a limiting groove 113 or a limiting protrusion for limiting the movement of the fan 5 outlet pipe.

[0069] Specifically, such as Figure 1 , Figure 9 As shown, a limiting groove 113 is provided on the inner wall of the expanded diameter section 111 in the circumferential direction, and a protruding structure is provided on the outer periphery of the air outlet pipe of the fan 5. The limiting groove 113 can cooperate with the protruding structure to circumferentially limit the air outlet pipe 1 and restrict the air outlet pipe 1 from rotating relative to the air outlet pipe. Of course, when the air outlet pipe of the fan 5 is provided with a groove structure, a corresponding limiting protrusion can also be provided on the inner wall of the expanded diameter section 111 so that the two cooperate to limit the movement. Alternatively, the air outlet pipe of the fan 5 can also be a protruding structure, and the expanded diameter section 111 is also provided with a limiting protrusion, with the two protruding stops cooperating to limit the movement.

[0070] In a preferred embodiment of this utility model, such as Figure 2 As shown, the air outlet tube 1 assembly also includes a mounting bracket 2. The rigidity of the mounting bracket 2 is greater than that of the air outlet tube 1. The support part 12 is connected to the internal air duct structure of the ventilator through the mounting bracket 2.

[0071] The rigidity of the mounting bracket 2 is greater than that of the air outlet pipe 1. The air outlet pipe 1 is connected to the duct structure through the mounting bracket 2. Due to the greater rigidity of the mounting bracket 2, it is less likely to deform or shift its position when the pipe body 11 moves or deforms, thus maintaining a stable connection with the duct structure. At the same time, the rigid connection also provides support to one end of the air outlet pipe 1, thereby ensuring the connection effect between the air outlet pipe 1 and the duct structure and reducing the probability of the air outlet pipe 1 becoming loose from the duct structure.

[0072] It should be noted that this embodiment does not limit the assembly method of the mounting bracket 2 and the air outlet pipe 1, which can be one of the following embodiments:

[0073] Implementation Method 1: In this implementation method, the mounting bracket 2 and the air outlet pipe 1 are separate structures, which are fixed together by assembly.

[0074] Specifically, such as Figure 3 , Figure 4 As shown, the support 12 includes a deformable section 121 connected to the tube body 11 and a free section 122 connected to the deformable section 121. The free section 122 has a radial gap with the outer wall of the tube body 11 and forms a deformation space 114. Furthermore, the mounting bracket 2 and the free section 122 are detachably fixed.

[0075] The detachable design of the mounting bracket 2 and the air outlet pipe 1 allows users to separate them for cleaning, making cleaning more thorough and convenient.

[0076] This embodiment does not limit the connection method between the mounting bracket 2 and the air outlet pipe 1. In a preferred embodiment, such as Figure 2 , Figure 3 , Figure 4 As shown, the free section 122 is provided with a mounting rib 123. One of the mounting rib 123 and the mounting bracket 2 is provided with a plugging protrusion 21, and the other is provided with a plugging interface 124. The plugging protrusion 21 and the plugging interface 124 are connected and engaged radially along the pipe body 11.

[0077] The insertion protrusion 21 and the insertion interface 124 are inserted radially into the tube body 11, which can provide axial positioning for the mounting bracket 2 and the air outlet pipe 1. Preferably, as shown in the figure... Figures 2 to 4 As shown, there are two sets of insertion protrusions 21. The two sets of insertion protrusions 21 are located on both sides of the air outlet pipe 1 along the radial direction of the pipe body 11. The insertion interface 124 is set in a one-to-one correspondence with the insertion protrusion 21.

[0078] Specifically, such as Figure 2 As shown, the mounting rib 123 is located at the top of the free section 122, and the top of the mounting bracket 2 is provided with a plug-in protrusion 21. The bottom of the free section 122 is also provided with a plug-in interface 124, and the bottom of the mounting bracket 2 is correspondingly provided with a plug-in protrusion 21, so that both the upper and lower ends are plugged in and positioned.

[0079] Furthermore, after the insertion protrusion 21 extends from the insertion interface 124, it protrudes beyond the outer surface of the outlet tube 1, thus enabling it to mate with the internal air duct structure of the ventilator. For example, the insertion protrusion 21 can be inserted into a groove in the ventilator's air duct structure to complete the mating. In one embodiment, such as... Figure 4As shown, the upper insertion protrusion 21 extends from the insertion interface 124 and can be fixed in place with the ventilator duct structure. The lower insertion protrusion 21 does not protrude from the outlet tube 1, so it can be directly fixed in place with the ventilator duct structure through the free section 122 of the outlet tube 1.

[0080] The mounting bracket 2 is also provided with a stop rib 22, and the end face of the free section 122 can abut against the stop rib 22 to form an axial limit on the mounting bracket 2 and the air outlet pipe 1.

[0081] Preferably, such as Figures 2 to 4 As shown, the support part 12 includes a deformable section 121 connected to the pipe body 11 and a free section 122 connected to the deformable section 121. One of the free section 122 and the mounting bracket 2 is provided with a positioning protrusion 23, and the other is provided with a positioning port 125. The positioning protrusion 23 and the positioning port 125 are inserted and fitted along the axial direction of the pipe body 11.

[0082] The positioning protrusion 23 and the positioning port 125 are inserted into each other along the axial direction of the pipe body 11, which can provide radial positioning for the mounting bracket 2 and the air outlet pipe 1, ensuring that the ports of the mounting bracket 2 and the air outlet pipe 1 are aligned and connected. Specifically, as shown in... Figure 2 As shown, the positioning protrusions 23 are provided on the mounting bracket 2 and are arranged at intervals along the circumferential direction of the passage of the mounting bracket 2.

[0083] Implementation Method Two: In this implementation method, as follows Figure 5 , Figure 6 As shown, the support part 12 includes a deformable section 121 connected to the tube body 11 and a free section 122 connected to the deformable section 121. The free section 122 is integrally formed with the mounting bracket 2.

[0084] The mounting bracket 2 is integrally molded into the free section 122. The free section 122 can be at least partially covered by the outer side of the mounting bracket 2 through injection molding or other methods. This eliminates assembly steps, reducing assembly difficulty and improving efficiency. It also facilitates cleaning for the user. Furthermore, it ensures a secure connection between the mounting bracket 2 and the outlet pipe 1 during airflow and fan 5 vibration, preventing them from detaching.

[0085] Preferably, such as Figure 6 As shown, part of the mounting bracket 2 is located inside the free section 122 and part is located outside the free section 122. The structure located outside is matched with the free section 122 through protrusions and grooves.

[0086] Preferably, such as Figure 8 , Figure 9 As shown, the free section 122 and / or the mounting bracket 2 have mounting protrusions 24 or mounting grooves extending circumferentially along the tube body 11, which are used to connect to the internal air duct structure of the ventilator.

[0087] Specifically, the air duct structure has an installation port, and the free section 122 covers the area outside the mounting bracket 2. The free section 122 forms an installation protrusion 24, which is fixed by cooperating with the installation port. The mounting bracket 2 is exposed in the area of ​​the free section 122, and the mounting bracket 2 forms an installation protrusion 24, which is fixed by cooperating with the installation port.

[0088] like Figures 7 to 9 As shown, this utility model also discloses a ventilator, including a main unit 3 and a humidification device 4. The main unit 3 includes an outer shell 31 with a accommodating cavity and an inner shell 32 placed in the accommodating cavity. A fan 5 is disposed inside the inner shell 32, and the fan 5 also includes the aforementioned air outlet pipe 1 assembly. The inner shell 32 has an installation port, one end of the pipe body 11 is connected to the air outlet of the fan 5, and the support part 12 is connected to the edge of the installation port.

[0089] Preferably, an air inlet duct is formed inside the inner shell 32 or between the inner shell 32 and the outer shell 31, so that external airflow enters the fan 5 through the air inlet duct.

[0090] It should be noted that the material of the inner shell 32 is not limited in this invention. In one embodiment, the inner shell 32 is a rigid structure, such as plastic, to make the shape and structure of the inner shell 32 and the mounting port more stable, thereby facilitating connection with the air outlet pipe 1. In another embodiment, the inner shell 32 is made of a flexible material, such as silicone, to improve the shock absorption and heat insulation effect of the inner shell 32, preventing the fan 5 from causing the inner shell 32 to vibrate and generate noise.

[0091] Preferably, such as Figure 8 , Figure 9 As shown, the vent pipe 1 assembly also includes a mounting bracket 2 connected to the vent pipe 1. The mounting bracket 2 has a higher hardness than the vent pipe 1. A limiting groove is provided at the edge of the mounting port, and at least part of the mounting bracket 2 is located within the limiting groove to cooperate with it. Specifically, the mounting bracket 2 and / or the vent pipe 1 are provided with mounting protrusions 24, which are fixed by cooperating with the limiting groove.

[0092] Preferably, the inner shell 32 includes a base and a cover, which together form a cavity for accommodating the fan 5. Both the base and the cover are provided with mating grooves. When the cover is closed to the base, the two mating grooves together form an installation opening, allowing the installation opening to be opened. The air outlet assembly is placed in the mating groove. After the mounting bracket 2 part mates with the limiting groove, the cover is closed to the base, so that the installation opening and the mounting bracket 2 are properly mated and fixed.

[0093] For any parts not mentioned in this utility model, existing technologies can be used or referenced.

[0094] 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.

[0095] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A blower exhaust pipe assembly, comprising an exhaust pipe made of a flexible material, characterized in that, The air outlet pipe includes a pipe body and a support portion that at least partially surrounds the pipe body. One end of the pipe body is used to connect to the air outlet of the fan. The support portion has a radial gap with the outer wall of the pipe body to form a deformation space. The support portion is used to connect to the internal air duct structure of the ventilator.

2. The air outlet pipe assembly for a fan according to claim 1, characterized in that, The support includes a deformable section connected to the tube body and a free section connected to the deformable section. The free section has a radial gap with the outer wall of the tube body and forms the deformable space.

3. The air outlet pipe assembly for a fan according to claim 2, characterized in that, The deformation section includes at least one fold to provide the tube body with axial and radial movement allowance.

4. The air outlet pipe assembly for a fan according to claim 3, characterized in that, The end of the pipe away from the fan is folded outward along the radial direction of the pipe to form the support portion.

5. The air outlet pipe assembly for a fan according to claim 1, characterized in that, The pipe body has an enlarged diameter section and an air guide section. The inner diameter of the enlarged diameter section is larger than the inner diameter of the air guide section. The enlarged diameter section is sleeved on the outside of the fan outlet pipe. The inner diameter of the air guide section is the same as the inner diameter of the fan outlet.

6. The air outlet pipe assembly for a fan according to claim 5, characterized in that, The enlarged section is provided with a limiting groove or limiting protrusion for limiting the movement of the fan outlet pipe.

7. The air outlet pipe assembly for a fan according to claim 1, characterized in that, The air outlet tube assembly also includes a mounting bracket, the rigidity of which is greater than that of the air outlet tube, and the support portion is connected to the internal air duct structure of the ventilator through the mounting bracket.

8. The air outlet pipe assembly for a fan according to claim 7, characterized in that, The support includes a deformable section connected to the tube body and a free section connected to the deformable section. The free section has a radial gap with the outer wall of the tube body and forms the deformation space. The mounting bracket and the free section are detachably fixed.

9. The air outlet pipe assembly for a fan according to claim 8, characterized in that, The free section is provided with a mounting rib, and one of the mounting rib and the mounting bracket is provided with a plug-in protrusion, and the other is provided with a plug-in interface. The plug-in protrusion and the plug-in interface are plugged into each other along the radial direction of the tube body.

10. The air outlet pipe assembly for a fan according to claim 9, characterized in that, The insertion protrusions are in two sets, and the two sets of insertion protrusions are located opposite each other on both sides of the air outlet pipe along the radial direction of the pipe body. The insertion interface is provided in a one-to-one correspondence with the insertion protrusion. When the insertion protrusion is inserted into the insertion interface, at least a portion of the insertion protrusion can be used to cooperate with the internal air duct structure of the ventilator.

11. The air outlet pipe assembly for a fan according to claim 8, characterized in that, The support includes a deformable section connected to the tube body and a free section connected to the deformable section. One of the free section and the mounting bracket is provided with a positioning protrusion, and the other is provided with a positioning port. The positioning protrusion and the positioning port are inserted and fitted along the axial direction of the tube body.

12. The air outlet pipe assembly for a fan according to claim 8, characterized in that, The support includes a deformable section connected to the tube body and a free section connected to the deformable section. At least a portion of the mounting bracket is embedded inside the free section, and the free section and the mounting bracket are integrally formed.

13. The air outlet pipe assembly for a fan according to claim 12, characterized in that, The free section and / or mounting bracket have mounting protrusions or mounting grooves extending circumferentially along the tube body, the mounting protrusions or mounting grooves being used to connect to the internal air duct structure of the ventilator.

14. A ventilator, comprising a main unit and a humidification device, the main unit comprising a shell having a receiving cavity, and an inner shell disposed within the receiving cavity, wherein a fan is disposed inside the inner shell, characterized in that, It also includes the air outlet pipe assembly for a fan as described in any one of claims 1-13, wherein one end of the pipe body is connected to the air outlet of the fan, and the support portion is connected to the inner shell.

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