Novel fan

Abstract

The utility model belongs to the technical field of fans, and relates to a novel fan which comprises a shell, a battery and a fan assembly. The shell is provided with an air inlet and an air outlet which are coaxially arranged, the battery and the fan assembly are both arranged in the shell, the fan assembly is used for driving air in the external environment to flow to the air outlet from the air inlet, and the battery and the fan assembly are arranged in a spaced mode in the direction from the air inlet to the air outlet. Compared with the prior art, the battery and the fan assembly are arranged at intervals in the direction from the air inlet to the air outlet, and when the fan assembly drives air in the external environment to flow to the air outlet from the air inlet, air flow can be blown to the periphery of the battery, the periphery of the fan assembly and the sides, close to each other, of the battery and the fan assembly; therefore, the novel fan can effectively dissipate heat in the operation process to reduce the temperature, and the problem that the temperature is too high due to the fact that heat dissipation is difficult is avoided.

Description

Technical Field

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

[0002] Handheld fans are lightweight and portable, making them convenient for outdoor activities, travel, office use, or relaxing at home. This makes them particularly popular in hot weather or when rapid cooling is needed. However, it should be noted that most handheld fans on the market currently suffer from overheating due to poor heat dissipation during operation, a problem that urgently needs improvement. Utility Model Content

[0003] Therefore, it is necessary to provide a new type of fan to address the above problems, which aims to enable the new fan to effectively dissipate heat during operation, thereby reducing the temperature and avoiding the problem of excessive temperature caused by heat dissipation difficulties.

[0004] The embodiments of this application achieve the above objectives through the following technical solutions.

[0005] This application provides a novel fan, comprising: a housing, a battery, and a fan assembly; wherein...

[0006] The housing has an air inlet and an air outlet arranged coaxially. The battery and the fan assembly are both disposed inside the housing. The fan assembly is used to drive the air from the external environment from the air inlet to the air outlet. The battery and the fan assembly are spaced apart in the direction from the air inlet to the air outlet.

[0007] In one embodiment, the battery is located beside the air inlet, and the fan assembly is located beside the air outlet.

[0008] In one embodiment, there is a gap between the battery and the air inlet.

[0009] In one embodiment, the novel fan further includes a charging component electrically connected to the battery, the charging component being disposed in the housing and abutting against the side of the battery near the air inlet, so that there is a gap between the battery and the air inlet.

[0010] In one embodiment, the outer peripheral wall of the charging component is provided with a clearance space.

[0011] In one embodiment, the novel fan further includes a flow guide and a charging component, the charging component and the flow guide being spaced apart within the housing along the direction from the air inlet to the air outlet, and the battery being clamped between the charging component and the flow guide.

[0012] In one embodiment, the outer peripheral wall of the flow guide is provided with at least three limiting portions extending circumferentially thereon. The end of each limiting portion away from the flow guide is provided on the inner wall of the housing. The side of the flow guide near the charging component and all the limiting portions form a limiting space. The end of the battery away from the charging component cooperates with the limiting space.

[0013] In one embodiment, the novel fan further includes a circuit board disposed within the housing and located between the air inlet and the air outlet.

[0014] In one embodiment, the circuit board is at least partially located between the inner peripheral wall of the housing and the outer peripheral wall of the battery.

[0015] In one embodiment, the fan assembly is detachably inserted into the housing from the air outlet.

[0016] Compared with the prior art, the embodiments of this application have the following advantages: In this application, the housing has a coaxially arranged air inlet and air outlet, and the battery and fan assembly are spaced apart in the direction from the air inlet to the air outlet. When the fan assembly drives the air from the external environment to flow from the air inlet to the air outlet, the airflow can blow towards the outer periphery of the battery, the outer periphery of the fan assembly, and the side of the battery and fan assembly that are close to each other, so as to remove the heat on the battery and fan assembly. With this arrangement, the new fan can effectively dissipate heat during operation to reduce the temperature, thereby avoiding the problem of excessive temperature caused by heat dissipation difficulties. 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 schematic diagram of the overall structure of the novel fan in one embodiment of this application;

[0019] Figure 2 yes Figure 1 Internal structure diagram;

[0020] Figure 3 yes Figure 1 A schematic diagram of the exploded structure;

[0021] Figure 4 yes Figure 3 Another structural schematic diagram of the charging component;

[0022] Figure 5 yes Figure 3 Another structural schematic diagram of the central guide component;

[0023] Figure 6 This is a structural diagram illustrating the method of fixing the circuit board;

[0024] Figure 7 yes Figure 6 A magnified structural diagram of part A in the middle;

[0025] Figure 8 This is a schematic diagram of the fan assembly in this application, showing the fan wheel and drive component separated.

[0026] Reference numerals: 1000, new type of fan; 100, housing; 101, air inlet; 102, air outlet; 103, air duct; 104, limiting component; 1041, baffle; 105, button; 110, main body of the housing; 120, cover; 121, annular protrusion; 122, mounting port; 200, battery; 300, fan assembly; 310, air guide tube; 311, air outlet grille; 320, driving component; 330, fan wheel; 400, charging component; 410, charging port; 420, clearance space; 401, contact side; 500, air guide component; 510, limiting part; 600, circuit board; 610, push switch. Detailed Implementation

[0027] 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.

[0028] 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.

[0029] This application provides a novel fan that, by spaced between an air inlet and an air outlet, allows the fan to simultaneously blow air from the external environment from the air inlet to the air outlet onto the outer periphery of the battery, the outer periphery of the fan assembly, and the side of the battery and fan assembly that are close to each other, thus carrying away the heat generated on the battery and fan assembly. This arrangement enables the novel fan to effectively dissipate heat during operation, thereby reducing the temperature, extending its service life, and avoiding the problem of overheating due to poor heat dissipation.

[0030] 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.

[0031] Please see Figures 1 to 3 This application provides a novel fan 1000, which includes a housing 100, a battery 200, and a fan assembly 300.

[0032] The housing 100 has an air inlet 101 and an air outlet 102 arranged coaxially, and an air duct 103 connecting the air inlet 101 and the air outlet 102. Specifically, the housing 100 is cylindrical, with the air inlet 101 and the air outlet 102 located at opposite ends along the axial direction of the housing 100. This allows the housing 100 to be held by a user. Obviously, the shape of the air duct 103 can be the same as or different from the shape of the housing 100, and no specific limitation is made here. Similarly, the shapes of the air inlet 101 and the air outlet 102 can be varied. They can be regular shapes such as circles, squares, triangles, and hexagons, or they can be other irregular shapes. The shapes of the two can be the same or different, and no specific limitation is made here.

[0033] In other embodiments, the housing 100 may also be in a prismatic, elliptical, or other regular shape, or it may be in an irregular shape. Furthermore, the outer peripheral wall of the housing 100 may be provided with anti-slip textures or fitted with an anti-slip sleeve to increase the friction between the housing 100 and the user's palm when the user grips the housing 100, thus facilitating a better grip. Additionally, the housing 100 may include a main body segment and two limiting segments, with both ends of the main body segment corresponding to and communicating with the two limiting segments. The diameter of the main body segment is smaller than the diameter of the two limiting segments, forming a dumbbell-like shape so that the user is restrained by the two limiting segments when gripping the main body segment.

[0034] As an example, and not a limitation, the air inlet 101 and air outlet 102, the air inlet 101 and air duct 103, and the air outlet 102 and air duct 103 can all be configured in a one-to-one manner, for example, one air inlet 101 corresponds to one air outlet 102. They can also be configured in a one-to-many manner, for example, one air inlet 101 corresponds to two air ducts 103. They can also be configured in a many-to-one manner, for example, two air inlets 101 correspond to one air duct 103. Obviously, when there are two or more air ducts 103, each air duct 103 is equipped with a battery 200 and a fan assembly 300. In this article, "multiple" refers to two or more.

[0035] In this embodiment, please refer to Figure 2 and Figure 3 The housing 100 includes a main body 110 and a cover 120. The main body 110 is cylindrical with open ends. The cover 120 covers one open end of the main body 110 and has an air inlet 101. The open end of the main body 110 away from the cover 120 forms an air outlet 102. Specifically, the inner side of the cover 120 has an annular protrusion 121 extending circumferentially. The outer peripheral wall of the annular protrusion 121 is inserted into the inner peripheral wall of the main body 110, which facilitates the assembly and disassembly of the cover 120. In addition, the air inlet 101 is arranged in a mesh pattern, which effectively prevents small-sized debris from the external environment from entering the housing 100 through the air inlet 101 during the air blowing process.

[0036] In other embodiments, the housing 100 may also be a single, complete component formed by machining, molding, 3D printing or other processing methods; the housing 100 may also be configured as comprising two shells arranged symmetrically about their axes, the two shells may be fixed together by means of bonding, ultrasonic welding or other fixed connection, or the two shells may be fixed together by means of detachable connection such as snap-fit, tenon and mortise connection, threaded connection, magnetic connection or other detachable connection.

[0037] Both the battery 200 and the fan assembly 300 are installed in the air duct 103 within the housing 100. The battery 200 is electrically connected to the fan assembly 300. The fan assembly 300 drives the air from the external environment from the air inlet 101 to the air outlet 102. The battery 200 and the fan assembly 300 are spaced apart in the direction from the air inlet 101 to the air outlet 102. Obviously, the connection method between the battery 200 and the housing 100, and the connection method between the fan assembly 300 and the housing 100, can be set as described above for fixed connection or detachable connection, and will not be elaborated further here.

[0038] There are many ways to form a battery 200. A battery 200 can be a single battery 200 element or it can be made up of multiple battery 200 elements stacked together. No specific limitation is made here.

[0039] Specifically, the battery 200 is cylindrical, and the air inlet 101 is annular, surrounding the battery 200 and the power component of the fan assembly 300. This arrangement allows airflow to fully contact the outer periphery of the battery 200 and the outer periphery of the power component in the fan assembly 300 after entering the air duct 103 through the air inlet 101, thereby removing heat from both components. In other embodiments, the battery 200 may also be prismatic.

[0040] In this embodiment, the distance between the battery 200 and the fan assembly 300 is 25mm. This arrangement ensures that the airflow within the duct 103 is directed towards the side where the battery 200 and the fan assembly 300 are close to each other, while also minimizing the axial length of the housing 100. In other embodiments, the distance between the battery 200 and the fan assembly 300 can also be set to other values ​​such as 26mm, 27mm, 28mm, 29mm, and 30mm.

[0041] With the above technical solution, since the battery 200 and the fan assembly 300 are arranged at intervals in the direction from the air inlet 101 to the air outlet 102, when the fan assembly 300 drives the air from the external environment to flow from the air inlet 101 to the air outlet 102, the airflow can blow towards the outer periphery of the battery 200, the outer periphery of the fan assembly 300, and the side of the battery 200 and the fan assembly 300 that are close to each other, so as to remove the heat from the battery 200 and the fan assembly 300. With this arrangement, the new fan 1000 can effectively dissipate heat during operation to reduce the temperature and thus avoid the problem of excessive temperature caused by heat dissipation difficulties.

[0042] Considering that the battery 200 is the main source of heat in the new fan 1000, if the airflow entering the air duct 103 through the air inlet 101 could first blow towards the battery 200, the heat dissipation effect of the new fan 1000 could be enhanced. Therefore, please refer to... Figure 2 and Figure 3 In order to enhance the heat dissipation effect of the new fan 1000, in one embodiment of this application, the battery 200 is located next to the air inlet 101 and the fan assembly 300 is located next to the air outlet 102. This arrangement allows the airflow to enter the air duct 103 through the air inlet 101 and then blow towards the battery 200 and then towards the fan assembly 300, thereby enhancing the heat dissipation effect of the new fan 1000.

[0043] In other embodiments of this invention, the fan assembly 300 may be located on the side of the air inlet 101 and the battery 200 may be located on the side of the air outlet 102. This also allows the fan assembly 300 and the battery 200 to be spaced apart in the direction from the air inlet 101 to the air outlet 102.

[0044] To further enhance the heat dissipation of battery 200, please refer to [link / reference needed]. Figure 2 and Figure 3 In one embodiment of this application, there is a gap between the battery 200 and the air inlet 101. This arrangement allows the airflow to enter the air duct 103 through the air inlet 101 and not only blow towards the outer peripheral wall of the battery 200, but also towards the end of the battery 200 near the air inlet 101, so as to remove the heat generated by the battery 200 and thereby enhance the heat dissipation effect of the battery 200.

[0045] For ease of setting the battery 200 with a gap between it and the air inlet 101, please refer to [link / reference]. Figure 2 and Figure 3 In one embodiment of this application, the novel fan 1000 further includes a charging component 400 electrically connected to the battery 200. The charging component 400 is disposed on the housing 100 and abuts against the side of the battery 200 near the air inlet 101, so that there is a gap between the battery 200 and the air inlet 101. This arrangement allows the charging component 400 to both charge the battery 200 and support the battery 200, thus performing both functions. Furthermore, after the airflow enters the air duct 103 through the air inlet 101, it can also blow onto the outer peripheral wall of the charging component 400, carrying away the heat on the charging component 400 to achieve effective heat dissipation. Obviously, the electrical connection between the charging component 400 and the battery 200 can be achieved through a wire or a conductive sheet, which is not specifically limited here.

[0046] Specifically, please refer to Figure 2 and Figure 3 The cover 120 is provided with an installation port 122, and the air inlet 101 is arranged around the installation port 122. The outer peripheral wall of the end of the charging component 400 away from the battery 200 is connected to the inner peripheral wall of the installation port 122. The connection method between the two is set as in the above embodiment of fixed connection or detachable connection, which will not be described in detail here. This arrangement allows the charging component 400 to be disassembled and installed together with the cover 120, making the disassembly and installation of the charging component 400 convenient.

[0047] In this embodiment, please refer to Figure 3 and Figure 4 The charging element 400 is configured as a charging element for the charging port 410, which is located at the end of the charging element 400 away from the battery 200. The charging port 410 includes, but is not limited to, one or more of a USB-A interface, a USB-B interface, a USB-C interface, a Lightning interface, and a DC charging port 410. In other embodiments, the charging element 400 may also be configured as a charging element that performs wireless charging using the principle of electromagnetic induction.

[0048] Further, please refer to Figure 2 and Figure 3 The charging component 400 has an abutting side 401 that abuts against the side of the battery 200 near the air inlet 101. The two radial sides of the battery 200 are arranged opposite each other beyond the abutting side 401. This arrangement allows airflow to blow towards the part of the battery 200 that extends beyond the abutting side 401, which is beneficial for cooling the battery 200.

[0049] To enhance the heat dissipation of the charging component 400, please refer to [link / reference needed]. Figure 2 and Figure 3 In one embodiment of this application, the outer peripheral wall of the charging component 400 is provided with a clearance space 420. This arrangement allows the airflow to enter the air duct 103 through the air inlet 101 and not only blow towards the outer peripheral wall of the charging component 400, but also towards the clearance space 420 on the outer peripheral wall of the charging component 400, thereby increasing the contact area between the airflow and the charging component 400 and enhancing the heat dissipation effect of the charging component 400.

[0050] Specifically, the clearance space 420 extends circumferentially along the charging component 400 and is arranged in a closed annular shape. This maximizes the contact area between the airflow and the charging component 400, thereby optimizing the heat dissipation effect of the charging component 400. Alternatively, the clearance space 420 can also extend circumferentially along the charging component 400 in an arc shape; in this case, there can be one or more clearance spaces 420. Furthermore, the two ends of the charging component 400 in the axial direction are plate-shaped, which further maximizes the clearance space 420.

[0051] For easy installation and removal of battery 200, please refer to [link / reference]. Figure 2 and Figure 3 In one embodiment of this application, the novel fan 1000 further includes a guide member 500. The charging component 400 and the guide member 500 are spaced apart within the housing 100 along the direction from the air inlet 101 to the air outlet 102. The battery 200 is sandwiched between the charging component 400 and the guide member 500. The side of the guide member 500 facing away from the battery 200 is spaced apart from the fan assembly 300. With this arrangement, when installing the battery 200, the battery 200 is first placed into the housing body and spaced apart from the guide member 500. The battery 200 is placed against the side facing away from the fan assembly 300, and then the cover 120 is placed on the shell body and against the end of the battery 200 away from the current guide 500. This allows the battery 200 to be clamped between the charging component 400 and the current guide 500, thus completing the installation of the battery 200. When removing the battery 200, first remove the cover 120 from the shell body to release the constraint on the battery 200, and then take the battery 200 out of the shell body to complete the removal of the battery 200.

[0052] Specifically, the side of the air guide 500 that abuts against the battery 200 is set as a flat surface, while the side of the air guide 500 facing away from the battery 200 is set in a conical shape. This facilitates the air guide 500 in directing the airflow in the air duct 103 to the fan assembly 300, thereby facilitating the cooling of the fan assembly 300. In other embodiments, the air guide 500 may be set in a square pyramidal shape, which can also serve the purpose of directing airflow to the fan assembly 300.

[0053] Considering that the charging component 400 and the current guide 500 only limit the battery 200 along its axial direction, further limiting the battery 200 along its circumferential direction would enhance its stability. Therefore, please refer to [link to relevant documentation]. Figure 2 , Figure 3 and Figure 5 In one embodiment of this application, the outer peripheral wall of the flow guide 500 is provided with at least three limiting portions 510 extending along its circumference. The end of each limiting portion 510 away from the flow guide 500 is provided on the inner wall of the housing 100. The side of the flow guide 500 near the charging component 400 and all the limiting portions 510 form a limiting space (not marked). The end of the battery 200 away from the charging component 400 cooperates with the limiting space. With this arrangement, the battery 200 can be limited along the circumference of the battery 200 by the limiting space, thereby further enhancing the stability of the battery 200.

[0054] In this embodiment, three limiting parts 510 are provided, which can achieve triangular positioning of the battery 200 along its circumference, resulting in better stability of the battery 200. Furthermore, the arrangement of the limiting parts 510 does not interfere with the ventilation volume of the novel fan 1000. In other embodiments, four, five, six, etc., limiting parts 510 may also be provided. Additionally, the connection method between the limiting parts 510 and the inner wall of the housing 100 can be a fixed connection or a detachable connection as described in the above embodiments, which will not be elaborated further here.

[0055] Considering that the new fan 1000 also includes a circuit board 600, which generates heat during operation, if the heat on the circuit board 600 can be dissipated through airflow, the heat dissipation effect of the new fan 1000 can be further enhanced. Therefore,

[0056] Please see Figure 2 and Figure 3 In one embodiment of this application, the circuit board 600 is disposed inside the housing 100 and located between the air inlet 101 and the air outlet 102. The circuit board 600 is electrically connected to the fan assembly 300 and the battery 200. This arrangement allows the airflow to enter the air duct 103 through the air inlet 101 and then blow onto the circuit board 600, carrying away the heat on the circuit board 600, thereby further enhancing the heat dissipation effect of the novel fan 1000.

[0057] Specifically, please refer to Figure 2 , Figure 3 , Figure 6 as well as Figure 7 The inner peripheral wall of the housing 100 is provided with two parallel limiting members 104, which are L-shaped and extend axially along the housing 100. Each limiting member 104 has a baffle 1041 on its axially upward side near the air outlet 102. The two limiting members 104, the two baffles 1041, and the inner peripheral wall of the housing 100 form an insertion space, in which the circuit board 600 is inserted, facilitating its installation and removal. In other embodiments, the circuit board 600 can also be installed within the housing 100 using a fixed or detachable connection as described in the above embodiments.

[0058] Furthermore, a button 105 is installed on the housing 100, and a push-button switch 610 is provided on the circuit board 600 for pressing the button 105. Pressing the button 105 can activate or deactivate the push-button switch 610 on the circuit board 600.

[0059] To enhance the heat dissipation of circuit board 600, please refer to [link / reference needed]. Figure 2 and Figure 3 In one embodiment of this application, the circuit board 600 is at least partially located between the inner peripheral wall of the housing 100 and the outer peripheral wall of the battery 200. This arrangement shortens the distance between the circuit board 600 and the air inlet 101, thereby enhancing the intensity of the airflow blowing towards the circuit board 600 and thus improving the heat dissipation effect of the circuit board 600. Furthermore, the circuit board 600 and the battery 200 can share a portion of the axial space of the housing 100, thereby shortening the axial length of the housing 100 and facilitating the compact design of the novel fan 1000.

[0060] Specifically, please refer to Figure 2 and Figure 3 A portion of the circuit board 600 is located between the outer peripheral wall of the guide 500 and the inner peripheral wall of the housing 100, and another portion of the circuit board 600 is located between the outer peripheral wall of the battery 200 and the inner peripheral wall of the housing 100, so that the circuit board 600 and the guide 500 can also guide the airflow between them together.

[0061] For easy installation and removal of the fan assembly 300, please refer to [link / reference]. Figure 2 and Figure 3 In one embodiment of this application, the fan assembly 300 is detachably inserted into the housing 100 from the air outlet 102. Specifically, the outer peripheral wall of the fan assembly 300 is inserted into the inner peripheral wall of the housing 100 at the position adjacent to the air outlet 102.

[0062] In this embodiment, please refer to Figure 2 , Figure 3 as well as Figure 8 The fan assembly 300 includes an air guide duct 310, a drive component 320, and a fan wheel 330. The outer peripheral wall of the air guide duct 310 is inserted into the inner peripheral wall of the housing 100 at the position adjacent to the air outlet 102. An air outlet grille 311 is provided on the side of the air guide duct 310 away from the air inlet 101. The drive component 320 is located inside the air outlet grille 311 and is electrically connected to the battery 200. The drive component 320 is connected to the fan wheel 330 to drive the fan wheel 330 to rotate. The drive component 320 can be of many types; it can be a motor formed by a stator and rotor, or it can be a rotating element such as a rotary cylinder. No specific limitation is made here.

[0063] In other embodiments, the fan assembly may also be configured to include a base, a drive unit, and a fan wheel, with the base mounted on the inner peripheral wall of the housing, and the drive unit disposed on the base and connected to the fan wheel to drive the fan wheel to rotate.

[0064] 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 novel fan, characterized in that, The novel fan includes: a housing, a battery, and a fan assembly; wherein... The housing has an air inlet and an air outlet arranged coaxially. The battery and the fan assembly are both disposed inside the housing. The fan assembly is used to drive the air from the external environment from the air inlet to the air outlet. The battery and the fan assembly are spaced apart in the direction from the air inlet to the air outlet.

2. The novel fan according to claim 1, characterized in that, The battery is located to the side of the air inlet, and the fan assembly is located to the side of the air outlet.

3. The novel fan according to claim 1, characterized in that, There is a gap between the battery and the air inlet.

4. The novel fan according to claim 3, characterized in that, The novel fan also includes a charging component electrically connected to the battery. The charging component is disposed in the housing and abuts against the side of the battery near the air inlet, so that there is a gap between the battery and the air inlet.

5. The novel fan according to claim 4, characterized in that, The outer peripheral wall of the charging component is provided with a clearance space.

6. The novel fan according to claim 1, characterized in that, The novel fan also includes a flow guide and a charging component, which are installed at intervals within the housing along the direction from the air inlet to the air outlet, and the battery is clamped between the charging component and the flow guide.

7. The novel fan according to claim 6, characterized in that, The outer peripheral wall of the flow guide is provided with at least three limiting portions extending in its circumference. The end of each limiting portion away from the flow guide is provided on the inner wall of the housing. The side of the flow guide close to the charging component and all the limiting portions form a limiting space. The end of the battery away from the charging component cooperates with the limiting space.

8. The novel fan according to any one of claims 1 to 7, characterized in that, The novel fan also includes a circuit board disposed inside the housing and located between the air inlet and the air outlet.

9. The novel fan according to claim 8, characterized in that, The circuit board is located at least partially between the inner peripheral wall of the housing and the outer peripheral wall of the battery.

10. The novel fan according to any one of claims 1 to 7, characterized in that, The fan assembly is detachably inserted into the housing from the air outlet.

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