Liquid storage tank and portable fan

Abstract

This application belongs to the field of fans and relates to a liquid storage tank and a portable fan. The liquid storage tank includes a housing and a venting and liquid-blocking component. The housing has a liquid storage cavity and a mounting cavity communicating with the liquid storage cavity. The venting and liquid-blocking component cooperates with the mounting cavity, and the liquid storage cavity is in airflow communication with the outside of the housing through the venting and liquid-blocking component. Through the above-described arrangement, the liquid storage cavity is in airflow communication with the outside of the housing through the venting and liquid-blocking component, which effectively prevents liquid leakage from the liquid storage cavity into the internal space of the housing, ensuring that the electronic components inside the housing are not damaged by water immersion.

Description

Technical Field

[0001] This application relates to the field of fan technology, and more specifically, to a liquid storage tank and a portable fan. Background Technology

[0002] In the iterative innovation of fans, a portable fan with atomization function has been designed. The shell of this portable fan has a liquid storage chamber and an air exchange port. The air exchange port connects the liquid storage chamber and the internal space of the shell, and an air exchange structure is installed at the air exchange port.

[0003] The defects of the above-mentioned prior art are: because the vent is connected to the internal space of the shell, and there is a certain assembly gap between the vent and the vent structure, the liquid in the storage chamber will leak into the internal space of the shell. In severe cases, the electronic components in the internal space of the shell will be damaged due to water immersion. Therefore, it is urgent to improve it. Utility Model Content

[0004] Therefore, it is necessary to provide a liquid storage tank to address the above problems, which can effectively prevent the liquid in the storage chamber from leaking into the internal space of the housing, so as to ensure that the electronic components in the internal space of the housing will not be damaged by water immersion.

[0005] The embodiments of this application achieve the above objectives through the following technical solutions.

[0006] This application provides a liquid storage tank, which includes a shell and a venting and liquid-blocking component. The shell has a liquid storage cavity and an installation cavity communicating with the liquid storage cavity. The venting and liquid-blocking component cooperates with the installation cavity, and the liquid storage cavity is in airflow communication with the outside of the shell through the venting and liquid-blocking component.

[0007] In one embodiment, the mounting cavity is formed in the cavity wall of the liquid storage cavity, and the housing also has a vent connecting the mounting cavity and the outside of the housing. The liquid storage cavity is connected to the airflow of the vent through the venting and liquid-blocking element.

[0008] In one embodiment, the ventilating and liquid-blocking component includes a bracket and a ventilating and liquid-blocking core; wherein the bracket cooperates with the mounting cavity, the bracket has a ventilating channel connecting the vent and the liquid storage cavity, the ventilating and liquid-blocking core is disposed on the bracket and covers the ventilating channel, and the liquid storage cavity is in airflow communication with the vent through the ventilating and liquid-blocking core.

[0009] In one embodiment, the bracket and the mounting cavity further enclose a communicating space, and the ventilation channel communicates with the ventilation port through the communicating space.

[0010] In one embodiment, the air-sealing liquid-sealing core is a one-way valve and / or a waterproof and breathable membrane.

[0011] In one embodiment, the bracket further has an insertion hole arranged parallel to the ventilation channel, the ventilation liquid-blocking core is configured as an umbrella valve, the umbrella valve includes a valve stem and a valve cover, the valve stem cooperates with the insertion hole, and the valve cover covers the ventilation channel.

[0012] In one embodiment, the air-sealing and liquid-blocking component further includes a sealing sleeve, which is fixed to the outer periphery of the bracket, and the outer periphery of the sealing sleeve elastically abuts against the inner periphery of the mounting cavity.

[0013] In one embodiment, the venting and liquid-blocking component further includes a protective cover, which covers the side of the bracket facing the liquid storage cavity, and the protective cover has a communication port connecting the venting channel and the liquid storage cavity.

[0014] In one embodiment, the vent is higher than the connection between the mounting cavity and the liquid storage cavity.

[0015] This application also provides a portable fan, which includes a liquid reservoir as described above.

[0016] Compared with the prior art, the embodiments of this application have the following advantages: In this application, the liquid storage tank includes a shell and a venting and liquid-blocking component, the shell has a liquid storage cavity and an installation cavity communicating with the liquid storage cavity, the venting and liquid-blocking component cooperates with the installation cavity, and the liquid storage cavity is connected to the airflow outside the shell through the venting and liquid-blocking component. This arrangement effectively prevents the liquid in the liquid storage cavity from leaking into the internal space of the shell, thus ensuring that the electronic components inside the shell are not damaged by water immersion. Attached Figure Description

[0017] To more clearly illustrate the solutions in this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a perspective view of the shell and cover after separation in one embodiment of this application;

[0019] Figure 2 This is a perspective view of the housing in one embodiment of this application;

[0020] Figure 3 This is a cross-sectional view of the shell in one embodiment of this application;

[0021] Figure 4 yes Figure 3A magnified structural diagram of part A in the middle;

[0022] Figure 5 This is an exploded structural diagram of the air-sealing liquid-blocking component in one embodiment of this application;

[0023] Figure 6 yes Figure 5 Another structural diagram from a different perspective;

[0024] Figure 7 yes Figure 2 Another structural diagram from a different perspective;

[0025] Figure 8 This is a perspective view of the portable fan in this application.

[0026] Figure label:

[0027] 1000, Portable Fan;

[0028] 100. Liquid storage tank;

[0029] 10. Shell;

[0030] 10a. Liquid storage chamber; 10b. Mounting chamber; 10c. Ventilation port; 10d. Mounting port; 10e. Receiving chamber; 10f. Communicating space; 10g. Circumvention groove; 101. Limiting protrusion; 102. Positioning frame; 103. Hollow column;

[0031] 20. Ventilation and liquid isolation components;

[0032] 21. Bracket; 21a. Ventilation channel; 21b. Groove; 21c. Insertion hole; 211c. Limiting wall; 21d. Limiting groove; 211. Annular protrusion; 211a. Notch;

[0033] 22. Ventilation and liquid-blocking core; 221. Valve stem; 2211. Limiting ring; 222. Valve cover;

[0034] 23. Sealing sleeve; 23a. Insertion hole; 231. Sealing ring; 232. Positioning protrusion;

[0035] 24. Protective cover; 24a. Connecting port; 24b. Clearance space; 241. Limiting rib; 242. Protective part; 243. Insertion post;

[0036] 30. Cover;

[0037] 200. Fan body; 210. Fan section; 220. Handheld part. Detailed Implementation

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0039] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0040] This application provides a liquid storage tank for use in a portable fan. The liquid storage chamber on the housing is connected to the airflow outside the housing via a non-traditional method through a gas exchange and liquid barrier to achieve air pressure balance in the liquid storage chamber. This effectively prevents liquid from leaking into the internal space of the housing, thereby ensuring that the electronic components inside the housing are not damaged by water immersion.

[0041] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.

[0042] Please see Figures 1 to 4 This application provides a liquid storage tank 100, which includes a shell 10 and a venting and liquid-blocking component 20.

[0043] The housing 10 has a liquid storage cavity 10a and a mounting cavity 10b communicating with the liquid storage cavity 10a. The housing 10 has many shapes, such as cuboid, cylindrical, prismatic, etc., which are not specifically limited here. Obviously, the shapes of the liquid storage cavity 10a and the mounting cavity 10b also have many shapes, and they can all be set with reference to the shape of the housing 10, which will not be described in detail here.

[0044] There are many ways to form the shell 10. In this embodiment, the shell 10 is a single, complete component integrally formed by injection molding, 3D printing, or other machining methods, which ensures the sealing of the liquid storage cavity 10a and the mounting cavity 10b. In other embodiments, the shell 10 can also be assembled from multiple components. In this document, "multiple" refers to at least two components. The multiple components can be fixed by detachable connections such as snap-fit, fastening, magnetic connection, and tenon joint, or they can be fixed by fixed connections such as adhesive or welding. No specific limitation is made here.

[0045] The venting and liquid-blocking component 20 mates with the mounting cavity 10b, and the liquid storage cavity 10a is in airflow communication with the outside of the housing 10 through the venting and liquid-blocking component 20. The venting and liquid-blocking component 20 serves both venting and liquid-blocking functions. Venting refers to at least one of allowing gas in the liquid storage cavity 10a to flow out from the outside of the housing 10 and allowing gas from the outside of the housing 10 to flow into the liquid storage cavity 10a. Liquid-blocking refers to preventing liquid in the liquid storage cavity 10a from flowing out from the outside of the housing 10.

[0046] As an example and not a limitation, the liquid storage chamber 10a may be connected to the outside of the housing 10 via the air exchange liquid barrier 20 to allow only air intake, or it may be connected to the outside of the housing 10 via the air exchange liquid barrier 20 to allow only air exhaust, or it may be connected to the outside of the housing 10 via the air exchange liquid barrier 20 to allow both air intake and air exhaust.

[0047] Specifically, the venting and liquid-blocking component 20 is sealed and installed in the mounting cavity 10b, which can effectively prevent the liquid in the liquid storage cavity 10a from leaking to the outside of the housing 10 along the assembly gap between the venting and liquid-blocking component 20 and the mounting cavity 10b.

[0048] The relative positions of the mounting cavity 10b and the liquid storage cavity 10a can vary. In this embodiment, the mounting cavity 10b is located above the liquid storage cavity 10a, and the mounting cavity 10b communicates with the top wall of the liquid storage cavity 10a. This arrangement ensures that the position where the liquid storage cavity 10a communicates with the outside of the housing 10 via the air exchange and liquid barrier 20 is higher than that of the liquid storage cavity 10a, thereby further preventing leakage of liquid in the liquid storage cavity 10a along this airflow communication position. In other embodiments, the mounting cavity 10b can also be located below the liquid storage cavity 10a, and the mounting cavity 10b communicates with the bottom wall of the liquid storage cavity 10a; the mounting cavity 10b can also be located beside the liquid storage cavity 10a, and the mounting cavity 10b communicates with the inner peripheral wall of the liquid storage cavity 10a.

[0049] Obviously, there can be one or more mounting cavities 10b and venting / liquid-blocking components 20. In this article, "multiple" refers to at least two. Each venting / liquid-blocking component 20 is matched with the corresponding mounting cavity 10b. When there are multiple mounting cavities 10b and venting / liquid-blocking components 20, the relative positions of each mounting cavity 10b and the liquid storage cavity 10a can be the same or different. No specific limitation is made here.

[0050] Through the above technical solution, by connecting the liquid storage chamber 10a to the outside of the housing 10 via the venting and liquid-blocking component 20, the leakage of liquid from the liquid storage chamber 10a into the internal space of the housing 10 can be effectively prevented, ensuring that the electronic components inside the housing 10 are not damaged by water immersion. Furthermore, the installation cavity 10b provides an installation location for the venting and liquid-blocking component 20, facilitating its installation.

[0051] There are many ways to install the venting and liquid-blocking component 20. In this embodiment, the outer peripheral wall of the venting and liquid-blocking component 20 is sealed and abutted against the inner peripheral wall of the mounting cavity 10b. With this configuration, the venting and liquid-blocking component 20 can be installed by snapping it into the mounting cavity 10b, and disassembled by prying it out of the mounting cavity 10b, making the installation and disassembly of the venting and liquid-blocking component 20 convenient. In other embodiments, the venting and liquid-blocking component 20 can also be installed in the mounting cavity 10b by a fixed connection such as adhesive or welding, or by other detachable connection such as snap-fit ​​or magnetic connection.

[0052] In the above embodiments, there are many ways in which the liquid storage chamber 10a is connected to the outside of the housing 10 via the air exchange liquid barrier 20. Please refer to [link / reference]. Figure 3 and Figure 4 In one embodiment of this application, the mounting cavity 10b is formed inside the housing 10. Specifically, the mounting cavity 10b is formed in the cavity wall of the liquid storage cavity 10a. The housing 10 also has a vent 10c that connects the mounting cavity 10b and the outside of the housing 10. The liquid storage cavity 10a is connected to the airflow of the vent 10c through the vent 10c vent 20. This arrangement not only enables the liquid storage cavity 10a to be connected to the outside of the housing 10 through the vent 10 vent 20, but also ensures that the vent 10 vent 20 is installed inside the housing 10, so that the vent 10 vent 20 will not be damaged by accidental falling of the housing 10, thus protecting the vent 10 vent 20.

[0053] In this embodiment, the vent 10c is higher than the connection point between the mounting cavity 10b and the liquid storage cavity 10a. This effectively prevents liquid in the liquid storage cavity 10a from leaking out along the vent 10c in the event of accidental damage to the venting and liquid-blocking component 20. Specifically, the mounting cavity 10b is formed on the top wall of the liquid storage cavity 10a, and the vent 10c is located on the inner peripheral wall of the mounting cavity 10b, away from the liquid storage cavity 10a. This ensures that the vent 10c is higher than the connection point between the mounting cavity 10b and the liquid storage cavity 10a. In other embodiments, the vent 10c may also be located on the inner peripheral wall of the mounting cavity 10b, close to the liquid storage cavity 10a.

[0054] There are many ways to form the ventilation port 10c. In this embodiment, the inner peripheral wall of the mounting cavity 10b extends directly to the outer peripheral wall of the housing 10 to form the ventilation port 10c. This ensures that the ventilation port 10c is located on the outer peripheral wall of the housing 10, preventing it from being blocked when the housing 10 is placed, thus avoiding any impact on ventilation. In other embodiments, the inner peripheral wall of the mounting cavity 10b may also extend to the top or bottom end face of the housing 10 to form the ventilation port 10c.

[0055] Further, please refer to Figure 1 and Figure 3 The bottom wall of the liquid storage chamber 10a is provided to form an installation port 10d. The liquid storage tank 100 also includes a cover 30, which can cover or open the installation port 10d. With this configuration, the ventilator-liquid separator 20 can be disassembled and assembled by first opening the installation port 10d through the cover 30, and then the installation port 10d can be closed by the cover 30 after the disassembly and assembly of the ventilator-liquid separator 20 is completed. The installation method of the cover 30 is set with reference to the detachable installation method in the above embodiment, and will not be described in detail here.

[0056] Furthermore, please refer to Figure 3 The housing 10 also has a receiving cavity 10e with an opening at the top. The receiving cavity 10e is independently set with respect to the liquid storage cavity 10a. The receiving cavity 10e is located above the liquid storage cavity 10a, thus providing a mounting position for other components of the portable fan 1000.

[0057] In other embodiments, the mounting cavity 10b may be formed on the outer side of the housing 10. Specifically, a mounting cavity 10b with an open end is recessed in the outer peripheral wall of the housing 10. The housing 10 also has a communication channel connecting the mounting cavity 10b and the liquid storage cavity 10a. The venting and liquid-blocking component 20 is engaged in the mounting cavity 10b through the opening position of the mounting cavity 10b. In this way, the liquid storage cavity 10a can also be connected to the airflow outside the housing 10 through the venting and liquid-blocking component 20. Obviously, the mounting cavity 10b with an open end may also be recessed in the top or bottom wall of the housing 10.

[0058] There are many types of the aforementioned venting and liquid-blocking components 20; please refer to [link / reference]. Figures 3 to 6 In one embodiment of this application, the ventilator 20 includes a support 21 and a ventilator 22. The support 21 cooperates with the mounting cavity 10b and has a ventilator channel 21a that connects the ventilator port 10c and the liquid storage cavity 10a. The ventilator 22 is disposed on the support 21 and covers the ventilator channel 21a. The liquid storage cavity 10a is in airflow communication with the ventilator port 10c through the ventilator 22. With this arrangement, the ventilator port 10c, the ventilator channel 21a and the ventilator 22 can form a gas channel that connects the liquid storage cavity 10a with the outside of the housing 10, so as to maintain the gas pressure balance in the liquid storage cavity 10a.

[0059] In this embodiment, the venting and liquid-blocking core 22 covers the side of the ventilation channel 21a closest to the liquid storage chamber 10a. This effectively separates the ventilation channel 21a from the liquid storage chamber 10a, preventing liquid from entering the ventilation channel 21a. In other embodiments, the venting and liquid-blocking core 22 may also cover the side of the ventilation channel 21a furthest from the liquid storage chamber 10a.

[0060] It is worth mentioning that the ventilation channel 21a and the ventilation liquid-blocking core 22 can both be set to one or more, and the ventilation channel 21a and the ventilation liquid-blocking core 22 can be set in a one-to-one, one-to-many, or many-to-one manner. For example, when there is one ventilation channel 21a, there can be one ventilation liquid-blocking core 22, which covers one side of the ventilation channel 21a in the axial direction; or, when there is one ventilation channel 21a, there can be two ventilation liquid-blocking cores 22, which cover both sides of the ventilation channel 21a in the axial direction; or, when there are two ventilation channels 21a, there can be one ventilation liquid-blocking core 22, which covers the same side of the two ventilation channels 21a in the axial direction. These are just a few examples.

[0061] In other embodiments, the air-sealing and liquid-sealing component 20 may also be provided as a waterproof and breathable block formed by stacking multiple waterproof and breathable membranes, and the waterproof and breathable block is snapped into the mounting cavity 10b.

[0062] There are many ways in which the above-mentioned air exchange port 10c is connected to the air exchange channel 21a. Please refer to [link / reference]. Figure 4 In one embodiment of this application, the bracket 21 and the mounting cavity 10b further enclose a communicating space 10f, and the ventilation channel 21a communicates with the ventilation port 10c through the communicating space 10f. With this arrangement, the gas flow rate that can pass between the ventilation channel 21a and the ventilation port 10c can be increased, thereby facilitating the intake and exhaust of the liquid storage cavity 10a.

[0063] Further, please refer to Figure 4The bracket 21 has a groove 21b on the side facing the communicating space 10f, and the ventilation channel 21a is located at the bottom of the groove 21b. This arrangement adds a groove 21b between the ventilation channel 21a and the ventilation port 10c on the basis of the communicating space 10f, which can further increase the gas flow rate between the ventilation channel 21a and the ventilation port 10c.

[0064] Specifically, please refer to Figure 2 and Figure 4 The mounting cavity 10b is provided with a limiting protrusion 101, which abuts against the side of the bracket 21 facing away from the liquid storage cavity 10a, so that the side of the bracket 21 facing away from the liquid storage cavity 10a and the cavity wall of the mounting cavity 10b away from the liquid storage cavity 10a form a communicating space 10f, thus facilitating the formation of the communicating space 10f. The limiting protrusion 101 is integrally formed with the shell 10, which enhances the fixing strength of the limiting protrusion 101.

[0065] In other embodiments, one end of the ventilation channel 21a may be directly connected to the ventilation port 10c, and the other end of the ventilation channel 21a may be directly connected to the liquid storage chamber 10a.

[0066] There are many types of ventilated liquid-sealing cores 22. A ventilated liquid-sealing core 22 can be at least one of two types: a one-way valve and a waterproof and breathable membrane. One-way valves come in various types, including umbrella valves, duckbill valves, cantilever valves, bridge valves, wheel valves, two-end fixed-support valves, spring valves, and other one-way ventilated and waterproof structures. A one-way valve is an automatic valve that allows gas to flow in one direction while preventing reverse flow. Its core principle is to utilize the fluid's own pressure and the valve's internal structure to achieve a one-way flow function. A waterproof and breathable membrane is a thin film with selective permeability. Its core principle is to utilize the material's microporous structure and surface tension to achieve a "waterproof and breathable" function.

[0067] When the air-cooled liquid-blocking core 22 is configured as an umbrella valve, please refer to... Figure 4 In one embodiment of this application, the bracket 21 further has an insertion hole 21c arranged parallel to the ventilation channel 21a. The ventilation and liquid-blocking core 22 includes a valve stem 221 and a valve cover 222. The valve stem 221 cooperates with the insertion hole 21c, and the valve cover 222 covers the ventilation channel 21a. This arrangement facilitates the installation of the umbrella valve. In other embodiments, the connection method between the ventilation and liquid-blocking core 22 and the bracket 21 can be set as a fixed connection or a detachable connection as described in the above embodiments.

[0068] Specifically, the insertion hole 21c is a through hole located at the bottom of the groove 21b. The valve cover 222 covers the side of the ventilation channel 21a near the liquid storage chamber 10a, thus allowing the valve stem 221 to pass through the insertion hole 21c and extend into the groove 21b and the communicating space 10f. The groove 21b and the communicating space 10f increase the length of the valve stem 221 that can be accommodated. Furthermore, the cavity wall of the communicating space 10f away from the groove 21b is provided with a relief groove 10g that aligns with the insertion hole 21c. The relief groove 10g further increases the length of the valve stem 221 that can be accommodated. Figure 4 The diagram illustrates the situation where the valve stem 221 passes through the insertion hole 23a and is accommodated within the groove 21b, the communicating space 10f, and the clearance groove 10g. Alternatively, the insertion hole 21c can be configured as a blind hole that does not communicate with the groove 21b, in which case the valve stem 221 is only inserted into the insertion hole 21c.

[0069] When the air pressure outside the housing 10 is greater than the air pressure inside the liquid storage chamber 10a, the valve cover 222 is subjected to the air pressure from the outside of the housing 10, causing the valve cover 222 to undergo elastic deformation, opening the ventilation channel 21a. The gas outside the housing 10 flows into the liquid storage chamber 10a after passing through the ventilation port 10c, the connecting space 10f, the groove 21b, and the ventilation channel 21a in sequence, until the air pressure outside the housing 10 and the air pressure inside the liquid storage chamber 10a are restored to equilibrium. Under the action of its own rebound force, the valve cover 222 returns to the state of covering the ventilation channel 21a.

[0070] In other embodiments, the valve cover 222 may cover the side of the ventilation channel 21a away from the liquid storage chamber 10a. When the air pressure inside the liquid storage chamber 10a is greater than the air pressure outside the housing 10, the valve cover 222 is subjected to the air pressure inside the liquid storage chamber 10a, causing the valve cover 222 to undergo elastic deformation, opening the ventilation channel 21a. The gas inside the liquid storage chamber 10a flows into the outside of the housing 10 after passing through the ventilation channel 21a, the groove 21b, the connecting space 10f, and the ventilation port 10c in sequence, until the air pressure inside the liquid storage chamber 10a and the air pressure outside the housing 10 are restored to equilibrium. Under the action of its own rebound force, the valve cover 222 returns to the state of covering the ventilation channel 21a. Of course, it can also be provided with two air-exchange liquid-blocking cores 22 and two air-exchange channels 21a. The valve cover 222 of one air-exchange liquid-blocking core 22 covers the side of the air-exchange channel 21a close to the liquid storage chamber 10a, and the valve cover 222 of the other air-exchange liquid-blocking core 22 covers the side of the air-exchange channel 21a away from the liquid storage chamber 10a.

[0071] Furthermore, in other embodiments, the air-sealing liquid-sealing core 22 can also be configured as a waterproof and breathable membrane, which covers the side of the air-sealing channel 21a near the liquid storage chamber 10a.

[0072] Further, please refer to Figures 4 to 6A limiting ring 2211 extending circumferentially is provided on the outer periphery of the valve stem 221. The limiting ring 2211 abuts against the connection between the insertion hole 21c and the groove 21b, thus ensuring that the valve stem 221 remains stable and does not loosen when the valve cover 222 is subjected to air pressure. Specifically, the position of the inner peripheral wall of the insertion hole 21c adjacent to the bottom of the groove 21b forms a limiting wall 211c. The limiting wall 211c is inclined outward in the direction of the air passage 21a pointing towards the groove 21b. The limiting ring 2211 abuts against the limiting wall 211c, which enhances the fixing strength of the valve stem 221. The limiting wall 211c can also guide the limiting ring 2211 when the valve stem 221 is disassembled.

[0073] To achieve a sealed connection between the bracket 21 and the mounting cavity 10b, please refer to... Figures 4 to 6 In one embodiment of this application, the ventilator 20 further includes a sealing sleeve 23, which is fixed to the outer periphery of the bracket 21, and the outer periphery of the sealing sleeve 23 elastically abuts against the inner periphery of the mounting cavity 10b. Specifically, the sealing sleeve 23 is integrally formed with two sealing rings 231 located on its outer periphery, and the sealing rings 231 elastically abut against the inner periphery of the mounting cavity 10b.

[0074] Specifically, please refer to Figures 4 to 6 The bracket 21 has two annular protrusions 211 spaced apart along its axial direction on its outer periphery. Each annular protrusion 211 extends circumferentially along the bracket 21. The sealing sleeve 23 is fitted into the space formed by the bracket 21 and the two annular protrusions 211, which enhances the stability of the sealing sleeve 23. Alternatively, the annular protrusions 211 may not be provided, and the sealing sleeve 23 may be directly fitted into the outer periphery of the bracket 21.

[0075] And, please see Figure 2 as well as Figures 4 to 6 The sealing sleeve 23 has a positioning protrusion 232 on the side facing away from the liquid storage cavity 10a, and a positioning frame 102 is provided on the side of the communicating space 10f away from the ventilation channel 21a. The positioning protrusion 232 is engaged in the positioning frame 102, which can enhance the fixing strength of the sealing sleeve 23. In addition, the outer periphery of the side of the two annular protrusions 211 away from the liquid storage cavity 10a has a notch 211a that matches the outer periphery of the positioning protrusion 232, which can enhance the connection strength between the sealing sleeve 23 and the bracket 21.

[0076] Further, please refer to Figure 2 and Figure 7 The housing 10 is integrally formed with a hollow column 103. A part of the hollow column 103 is located in the receiving cavity 10e for insertion into the corresponding position on the fan part 210, which will be described below. The other part of the hollow column 103 is located in the communicating space 10f and is formed as a positioning frame 102, which facilitates the formation of the positioning frame 102.

[0077] Considering that the side of the valve cover 222 and the bracket 21 closest to the liquid storage chamber 10a is exposed inside the liquid storage chamber 10a, during long-term use, the valve cover 222 and the bracket 21 are easily shortened in service life due to prolonged immersion in the liquid in the liquid storage chamber 10a. Therefore, in order to extend the service life of the valve cover 222 and the bracket 21, please refer to... Figures 4 to 6 In one embodiment of this application, the ventilator 20 further includes a protective cover 24, which covers the side of the support 21 facing the liquid storage chamber 10a. The valve cover 222 is located inside the protective cover 24, and the protective cover 24 is provided with a communication port 24a connecting the ventilator 21a and the liquid storage chamber 10a. With this arrangement, the valve cover 222 and the support 21 can be protected by the protective cover 24, so that the valve cover 222 and the support 21 are not exposed in the liquid storage chamber 10a. This can effectively prevent the valve cover 222 and the support 21 from being shortened due to long-term immersion in the liquid in the liquid storage chamber 10a, thereby extending the service life of the valve cover 222 and the support 21.

[0078] Specifically, please refer to Figures 4 to 6 The protective cover 24 covers the outside of the bracket 21, and the protective cover 24 abuts against one of the two annular protrusions 211 near the liquid storage chamber 10a, thus making it convenient to cover the protective cover 24. In addition, the protective cover 24 and the bracket 21 form a clearance space 24b. The side of the insertion hole 21c near the liquid storage chamber 10a, the side of the ventilation channel 21a near the liquid storage chamber 10a, and the valve cover 222 are all located in the clearance space 24b. The connecting port 24a is connected to the ventilation channel 21a through the clearance space 24b. The clearance space 24b can provide the space required for the valve cover 222 to deform, so that the setting of the protective cover 24 will not interfere with the opening of the valve cover 222.

[0079] Further, please refer to Figures 4 to 6 The outer peripheral wall of the bracket 21 is provided with a limiting groove 21d extending in its circumference, and the inner peripheral wall of the protective cover 24 is provided with a plurality of limiting ribs 241 extending in its circumference. Each limiting rib 241 is engaged in the limiting groove 21d, which can enhance the connection strength between the protective cover 24 and the bracket 21.

[0080] Furthermore, please refer to Figures 4 to 6 The protective cover 24 also has a position that abuts against the protective part 242 and the sealing sleeve 23 opposite to the positioning protrusion 232. The protective part 242 is provided with a plug post 243 and the sealing sleeve 23 is provided with a plug hole 23a that cooperates with the plug post 243. This arrangement can both protect the sealing sleeve 23 and enhance the connection strength between the protective cover 24 and the sealing sleeve 23.

[0081] Please see Figure 8This application also provides a portable fan 1000, which includes a liquid storage tank 100 and a fan body 200 as described above. The liquid storage tank 100 is disposed on the fan body 200. The specific structure of the liquid storage tank 100 is as described in the above embodiments. Since the portable fan 1000 adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0082] In this embodiment, please refer to Figure 1 and Figure 8 The fan body 200 includes a fan section 210 and a handheld section 220. The housing 10 of the liquid storage tank 100 is formed as the outer shell of the handheld section 220, which facilitates the formation of the outer shell of the handheld section 220. Correspondingly, the air vent 10c is located on the outer periphery of the handheld section 220.

[0083] In other embodiments, the fan body 200 can also be configured as an integral component, and the housing 10 of the liquid storage tank 100 can be used as the outer shell of the fan body 200, or the housing 10 of the liquid storage tank 100 can be used as part of the outer shell of the fan body 200. It can be fixed by means of bonding, welding or other fixed connection, or by means of detachable connection such as plug-in, snap-fit ​​connection, magnetic connection, threaded connection.

[0084] By way of example, and not limitation, the vent 10c can be located at a lower outer periphery of the handle 220, a higher outer periphery of the handle 220, or a central outer periphery of the handle 220. Obviously, the user typically holds the handle 220 in the center during use. Therefore, when the vent 10c is located at a lower or higher outer periphery of the handle 220, it effectively prevents the air pressure balance within the liquid reservoir 10a from being affected by the user obstructing the vent 10c while holding the handle 220.

[0085] Obviously, the embodiments described above are only some embodiments of this application, not all embodiments. The accompanying drawings show preferred embodiments of this application, but do not limit the patent scope of this application. This application can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this application's specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the scope of patent protection of this application.

Claims

1. A liquid storage tank (100), characterized in that, The liquid storage tank (100) includes a shell (10) and a venting and liquid-blocking component (20). The shell (10) has a liquid storage cavity (10a) and an installation cavity (10b) communicating with the liquid storage cavity (10a). The venting and liquid-blocking component (20) cooperates with the installation cavity (10b). The liquid storage cavity (10a) is in airflow communication with the outside of the shell (10) through the venting and liquid-blocking component (20).

2. The liquid storage tank (100) according to claim 1, characterized in that, The mounting cavity (10b) is formed in the cavity wall of the liquid storage cavity (10a). The housing (10) also has a vent (10c) that connects the mounting cavity (10b) and the outside of the housing (10). The liquid storage cavity (10a) is connected to the airflow of the vent (10c) through the vent-water barrier (20).

3. The liquid storage tank (100) according to claim 2, characterized in that, The ventilation and liquid-blocking component (20) includes a support (21) and a ventilation and liquid-blocking core (22); wherein, The bracket (21) cooperates with the mounting cavity (10b). The bracket (21) has a ventilation channel (21a) that connects the ventilation port (10c) and the liquid storage cavity (10a). The ventilation liquid-blocking core (22) is disposed on the bracket (21) and covers the ventilation channel (21a). The liquid storage cavity (10a) is in airflow communication with the ventilation port (10c) through the ventilation liquid-blocking core (22).

4. The liquid storage tank (100) according to claim 3, characterized in that, The bracket (21) and the mounting cavity (10b) also form a communicating space (10f), and the ventilation channel (21a) is connected to the ventilation port (10c) through the communicating space (10f).

5. The liquid storage tank (100) according to claim 3, characterized in that, The air-sealing liquid-sealing core (22) is a one-way valve and / or a waterproof and breathable membrane.

6. The liquid storage tank (100) according to claim 3, characterized in that, The bracket (21) also has an insertion hole (21c) arranged parallel to the ventilation channel (21a). The ventilation liquid-blocking core (22) is configured as an umbrella valve. The umbrella valve includes a valve stem (221) and a valve cover (222). The valve stem (221) cooperates with the insertion hole (21c), and the valve cover (222) covers the ventilation channel (21a).

7. The liquid storage tank (100) according to claim 3, characterized in that, The air-sealing liquid-blocking component (20) also includes a sealing sleeve (23), which is fixed to the outer periphery of the bracket (21), and the outer periphery of the sealing sleeve (23) elastically abuts against the inner periphery of the mounting cavity (10b).

8. The liquid storage tank (100) according to claim 3, characterized in that, The ventilation and liquid-blocking component (20) also includes a protective cover (24), which covers the side of the support (21) facing the liquid storage chamber (10a), and the protective cover (24) is provided with a communication port (24a) connecting the ventilation channel (21a) and the liquid storage chamber (10a).

9. The liquid storage tank (100) according to any one of claims 2 to 8, characterized in that, The ventilation port (10c) is higher than the connection between the mounting cavity (10b) and the liquid storage cavity (10a).

10. A portable fan (1000), characterized in that, The portable fan (1000) includes a liquid reservoir (100) as described in any one of claims 1 to 9.

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