CN113090565A - Fan with cooling device - Google Patents

Abstract

The embodiment of the invention provides a fan. The fan comprises a fan main body and a magnetic suction base. The fan body comprises a shell with a fan containing cavity and a fan assembly positioned in the fan containing cavity, the fan assembly comprises a cross-flow fan arranged along a preset direction, the shell further comprises an air outlet communicated with the fan containing cavity, and the cross-flow fan is used for blowing air towards the air outlet; the base is used for supporting to magnetism inhale the fan main part has the base main part, wherein, the base is inhaled still including set up in the first magnetism spare of base main part or the base main part is first magnetism spare, the fan main part still include second magnetism spare or the casing is second magnetism spare, second magnetism spare be used for with first magnetism spare magnetic force attracts mutually, so that the base is inhaled to magnetism with realize magnetism can dismantle between the fan main part and be connected.

Description

Fan with cooling device

Technical Field

The invention relates to the technical field of fans, in particular to a fan.

Background

Under hot weather or environment, for alleviating high temperature, sultriness, the discomfort that the air does not circulate and bring, people can use electrical apparatus such as fan to drive the air flow usually, thereby promote human comfort level, common fan on the market, vertical or sitting posture usually, under some special environment, in the less environment of personal space such as office, vertical or sitting posture fan occupation space is great usually, unsuitable use, other common handheld or centre gripping fans, though the volume is less, but the air-out direction is fixed, can not satisfy the user demand that the user is different, user experience is poor.

Disclosure of Invention

In view of the above, there is a need for a fan with better user experience.

The embodiment of the invention provides a fan, which comprises a fan main body and a magnetic base. The fan body comprises a shell with a fan containing cavity and a fan assembly positioned in the fan containing cavity, the fan assembly comprises a cross-flow fan arranged along a preset direction, the shell further comprises an air outlet communicated with the fan containing cavity, and the cross-flow fan is used for blowing air towards the air outlet; the base is used for supporting to magnetism inhale the fan main part has the base main part, wherein, the base is inhaled still including set up in the first magnetism spare of base main part or the base main part is first magnetism spare, the fan main part still include second magnetism spare or the casing is second magnetism spare, second magnetism spare be used for with first magnetism spare magnetic force attracts mutually, so that the base is inhaled to magnetism with realize magnetism can dismantle between the fan main part and be connected.

Compared with the prior art, the fan provided by the embodiment of the invention has the advantages that the first magnetic part is arranged on the magnetic base, the second magnetic part which is magnetically attracted with the first magnetic part is arranged on the fan main body, so that the magnetic attraction base is magnetically detachably connected with the fan main body, the air outlet range of the fan is wider, the requirement of a user for multi-direction air outlet and cooling is met, the user feels more comfortable, also convenient to be disassembled and connected, so that the fan is convenient to be carried, convenient to be used by users, and better in user experience, in addition, the fan assembly is accommodated in the fan accommodating cavity, so that the fan is safer and has less noise when in use, and the whole structure of the fan is simpler, the occupied space is smaller, and the fan assembly adopts the cross-flow fan, so that the air outlet speed is uniform, and the comfort level of a human body is improved.

In one embodiment, the magnetic base comprises a first magnetic member disposed on the base body, the fan body further comprises a second magnetic member disposed on the casing, and the second magnetic member is configured to be magnetically connected with the first magnetic member, so that the magnetic base is magnetically detachably connected with the fan body. The first magnetic part is arranged on the base main body, the second magnetic part magnetically connected with the first magnetic part is arranged on the shell, so that the magnetic attraction base can rotate relatively to the fan main body to realize the magnetic detachable connection of various different relative positions, the air outlet direction of the fan main body is adjusted, the air outlet range of the fan is wider, the requirement of multi-direction air outlet cooling of a user is met, the user is more comfortable, the disassembly and the connection are convenient, the fan is convenient to carry and use, the user experience is better, meanwhile, the magnetic attraction base or the fan main body is rotated to realize the magnetic connection of various different relative positions between the magnetic attraction base and the fan main body, the air outlet direction of the fan main body is adjusted, the operation is convenient, and the magnetic attraction base and the fan main body are always magnetically connected in the rotating process, the safety and the stability of the fan in the working process are guaranteed.

In one embodiment, one of the first magnetic member and the second magnetic member is a permanent magnet, and the other of the first magnetic member and the second magnetic member is a permanent magnet or a soft magnet. One of the first magnetic part and the second magnetic part is a permanent magnet, and the other of the first magnetic part and the second magnetic part is a permanent magnet or a soft magnet, so that the magnetic material is easy to generate and process, low in generation cost and suitable for batch production.

In one embodiment, the casing includes a side wall structure surrounding the preset direction and covering the outer side of the cross flow fan, and two end plates respectively connected to two ends of the side wall structure, and the air outlet includes a strip-shaped air outlet arranged on the side wall structure and extending along the preset direction; the shell is also provided with an air inlet communicated with the fan containing cavity. Through the arrangement of the side wall structure which is annularly arranged around the preset direction and is covered on the outer side of the cross-flow fan and the two end plates which are respectively connected with the two ends of the side wall structure, the cross-flow fan can be accommodated in the fan accommodating cavity which is formed by the side wall structure and the end plates in a surrounding mode, the air inlet and the air outlet of the cross-flow fan are more concentrated, the air outlet is arranged in a strip shape, the air outlet can be matched with the air outlet direction of the cross-flow fan, and the air inlet and the air outlet efficiency of the cross-flow fan are improved.

In one embodiment, the number of the strip-shaped air outlets is multiple, and the air outlets are arranged in a matrix shape along the preset direction and a direction perpendicular to the preset direction. Through setting up the quantity of bar air outlet is a plurality of, and is a plurality of the air outlet is followed predetermine direction and perpendicular the direction of predetermineeing the direction is arranged into the matrix form, can make the air-out of fan is more even, simultaneously, can prevent that the user from carelessly inserting fingers etc. in the use in the fan, arouse injured problem, can also prevent debris such as dust, hair from entering the fan, it is right the fan causes the harm, has ensured safety in the fan use.

In one embodiment, the air inlets are strip-shaped and extend along the preset direction, the number of the air inlets is multiple, and the multiple air inlets are arranged in a matrix shape along the preset direction and a direction perpendicular to the preset direction. Through setting up the air intake is for following the bar that the direction of predetermineeing the extension, the quantity of air intake is a plurality of, and is a plurality of the air intake is followed predetermine direction and perpendicular predetermine the direction of direction and arrange into the matrix form, can make the air inlet of fan is more even, simultaneously, can prevent that the user from inadvertently inserting the fan with fingers etc. in the use, arouses injured problem, can also prevent debris such as dust, hair from entering the fan, it is right the fan causes the harm, has ensured security in the fan use.

In one embodiment, the sidewall structure has a first outer surface located at an outer side, the base body has a second outer surface corresponding to the first outer surface, one of the first outer surface and the second outer surface includes an arc-shaped convex surface, the other one of the first outer surface and the second outer surface is an arc-shaped concave surface adapted to the arc-shaped convex surface, the arc-shaped convex surface and the arc-shaped concave surface are magnetically attracted to the second magnetic member through the first magnetic member, and the arc-shaped convex surface can rotate in the arc-shaped concave surface, so that the fan body rotates relative to the magnetic attraction base, thereby adjusting an air outlet direction of the fan body. Through first surface with one in the second surface includes the protruding surface of arc, first surface with another in the second surface be with the protruding surface adaptation of arc sunken surface's arc sunken surface, the protruding surface of arc with the protruding surface of arc passes through first magnetic part with second magnetic part magnetism is inhaled and is met, makes the fan main part with magnetism is inhaled magnetism and is connected when more firm between the base, the protruding surface of arc can move in the arc sunken surface, thereby makes the fan main part for the base motion is inhaled to magnetism, thereby adjusts the air-out direction of fan main part adopts the arc surface can make and rotate between the two can be more smooth and easy, and the noise is little, easily the operation.

In one embodiment, a cross section of the first outer surface perpendicular to the preset direction is circular or drop-shaped. The cross section of the first outer surface perpendicular to the preset direction is circular or drop-shaped, so that the shape of the fan containing cavity is matched with that of the cross-flow fan, the air outlet of the cross-flow fan is smoother, and the air outlet efficiency of the fan is improved.

In one embodiment, the sidewall structure includes a first portion for being close to and connected with the magnetic base and a second portion connected to a side of the first portion away from the magnetic base, and the air outlet is disposed on the second portion. Through with the air outlet set up in the second part can avoid the base is inhaled to the magnetism, makes the air-out of fan is not influenced, has improved the air-out efficiency of fan.

In one embodiment, the first portion includes a first sub-portion and a second sub-portion, the second portion includes a third sub-portion and a fourth sub-portion, the first sub-portion, the second sub-portion, the third sub-portion and the fourth sub-portion are sequentially connected end to end, the air outlet is located in the third sub-portion, and the air inlet is located in the second sub-portion. Through inciting somebody to action the air outlet is located the third subsection, the air intake is located the second subsection makes the air outlet with the air intake is located adjacent side, makes the business turn over wind of fan is kept apart each other, does not influence each other, can also reduce the distance of business turn over wind simultaneously, improves the air-out efficiency of fan reaches rapid cooling's purpose.

In one embodiment, the fan further comprises a rotation assisting assembly including a first gear member provided to the base main body, a second gear member provided to the sidewall structure and engaged with the first gear member, the first gear member being movable along the second gear member such that the arc-shaped convex surface rotates in the arc-shaped concave surface. Through setting up the rotation auxiliary assembly makes the base main part first gear spare can follow set up in the lateral wall structure the second gear spare motion makes the fan main part for the base rotation is inhaled to magnetism is more reliable, controllable.

In one embodiment, the fan further comprises a driving member for driving at least one of the first gear member and the second gear member to rotate, so that the first gear member moves along the second gear member. Through setting up the driving piece drive first gear spare with at least one in the second gear spare rotates, makes first gear spare is followed second gear spare motion can make the fan main part for magnetism is inhaled the base and is rotated accessible remote controller, button etc. and control, and the user of being convenient for uses more, and user experience is better.

In one embodiment, one of the first gear member and the second gear member is a main gear member, the main gear member includes a first base and a plurality of first teeth portions disposed around an outer periphery of the first base, the other of the first gear member and the second gear member is a sub gear member, the sub gear member includes a plurality of second teeth portions arranged in an arc-shaped direction, the second teeth portions are engaged with the first teeth portions, and the main gear member rotates to move the plurality of first teeth portions along the plurality of second teeth portions. Through setting up a plurality ofly second tooth portion and a plurality of first tooth portion meshing, just main gear spare rotates and makes a plurality ofly first tooth portion is along a plurality of second tooth portion motion can the accurate control main gear spare with meshing and motion between the secondary gear spare make the fan main part is in it is more accurate to inhale rotation on the base, and user experience is better.

In one embodiment, the side wall structure has a mounting opening therethrough, the second gear member is the main gear member and is located in the fan receiving cavity and mounted in correspondence with the mounting opening, the second gear member is at least partially exposed from the mounting opening to engage with the first gear member; the second outer surface forms a plurality of the second teeth. Through the lateral wall structure is equipped with the installation opening that runs through, just the second gear spare is the primary gear spare, and be located in the fan accomodates the chamber and correspond the installation opening installation makes the second gear spare is at least partly followed the installation opening exposes with the meshing of first gear spare, can be right primary gear spare carries out spacing fixed, makes when the primary gear spare rotates a plurality of first tooth portion is along a plurality of during the motion of second tooth portion is more stable, has ensured stability and security during the fan work.

In one embodiment, the base body comprises a first supporting part for supporting the fan body, a first fixing part connected to one end of the first supporting part, and a second fixing part connected to one end of the first supporting part far away from the first fixing part, wherein the first fixing part and the second fixing part are used for abutting against two sides of a first external object to fix the fan on the first external object; and/or one end of the first fixing part far away from the first supporting part and one end of the second fixing part far away from the first supporting part are also used for supporting on a second external object, so that the second fixing part can support a third external object; and/or, the base is inhaled to magnetism still includes the third magnetic part, the third magnetic part is used for with the base is inhaled to magnetism and is inhaled fixedly to magnetism external object on. The fan can be fixed on a first external object such as a computer, a tablet and the like by arranging the first fixing part and the second fixing part in a way that the first fixing part and the second fixing part are abutted against two sides of the first external object, so that the fan is convenient for a user to use the first external object such as a computer, a tablet and the like, meanwhile, one end of the first fixing part, far away from the first supporting part, and one end of the second fixing part, far away from the first supporting part, are also used for supporting on a second external object such as a desktop and the like, so that the second fixing part can support a third external object such as a mobile phone, a tablet and the like, in addition, the magnetic base also comprises a third magnetic part, and the magnetic base can be directly adsorbed on the magnetic external object through the third magnetic part, so that the fan is fixed on the magnetic external object, the application range of the fan is expanded, and the user experience is better.

In one embodiment, an end of the first fixing portion away from the first supporting portion and an end of the second fixing portion away from the first supporting portion are further configured to be supported on the second external object, so that the second fixing portion can support the third external object, and an end of the second fixing portion away from the first supporting portion is provided with an extending end extending toward one side of the third external object, so that the extending end and the second fixing portion are respectively configured to support two sides of the third external object. Through setting up extend the end, can make extend the end with the second fixed part supports respectively the both sides of third outside object have ensured the base is right to the magnetism is inhaled the stability that third outside object supported.

In one embodiment, the second fixing portion is further provided with a first hanging portion for hanging the base main body on a fourth external object. Through setting up first linkage can be with the base main part hangs on the fourth external object, enlarged the application range of fan, user experience is better.

In one embodiment of the present invention, the magnetic base further includes an adhesive plate, the adhesive plate includes a second suspension portion corresponding to the first suspension portion, the adhesive plate is configured to be fixed on the fourth external object, the second suspension portion is located on a side of the adhesive plate away from the fourth external object, and the second suspension portion is configured to be fixedly connected with the first suspension portion, so that the base body is fixed on the fourth external object through the adhesive plate. Through setting up the bonding board, can make the second hang the portion with first portion of hanging is connected fixedly, makes the base main part passes through the bonding board is fixed on the fourth external object, is convenient for hang fixedly and take of fan, user experience is better.

In one embodiment, the second fixing portion is rotatably connected to an end of the first supporting portion away from the first fixing portion, and the second fixing portion is convertible between a folded state and a supporting state. Through setting up the second fixed part with first supporting part is kept away from the one end of first fixed part is rotated and is connected, can make the fan will when using the second fixed part is turned to the holding condition and is used for supporting the fan main part to not using it is convenient for accomodate for fold condition to turn back during the fan.

In one embodiment, the first supporting portion includes a supporting body, a first connecting portion connecting one end of the supporting body with the first fixing portion, and a second connecting portion connecting the other end of the supporting body with the second fixing portion, the first fixing portion includes a hook, and when the second connecting portion is in the folded state, the hook and one end of the second fixing portion far away from the first supporting portion are fixed in a clamping manner. Through first fixed part sets up the trip, can be in when the second connecting portion are in fold condition, the trip with the second fixed part is kept away from the one end block of first supporting part is fixed, makes the fan is when accomodating first fixed part with the second fixed part is stably accomodate.

In one embodiment of the disclosure, the base body further includes a third connecting portion and a fourth connecting portion, the third connecting portion and the fourth connecting portion are disposed opposite to each other and are connected between the first connecting portion and the second connecting portion, the third connecting portion and the fourth connecting portion are further connected to the first supporting portion, and the first supporting portion, the first to the fourth connecting portions define a base receiving cavity. Through first supporting part first to fourth connecting portion enclose into the base and accomodate the chamber and can make first fixed part with the second fixed part is accomodate completely when fold condition in the base is accomodate the chamber, makes the overall structure of base is inhaled to magnetism is succinct more, and occupation space is littleer, and is convenient for accomodate and carry.

In one embodiment, the fan assembly includes two cross-flow fans arranged along the preset direction, and a first driving motor and a second driving motor respectively connected to the two cross-flow fans, where the first driving motor and the second driving motor are respectively used for driving the corresponding cross-flow fans to rotate independently, so as to direct the air from the air inlet to the air outlet. Through setting up two the crossflow fan can effectively increase the air output of fan improves the air-out efficiency of fan reaches rapid cooling's purpose.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a perspective view of a fan according to a first embodiment of the present invention.

Fig. 2 is a perspective view of the fan shown in fig. 1 from another angle.

Fig. 3 is a perspective view of the fan shown in fig. 1 in a supporting state.

Fig. 4 is a partially exploded schematic view of the fan shown in fig. 1.

Fig. 5 is an exploded view of the fan shown in fig. 1.

Fig. 6 is a sectional view of the fan shown in fig. 1.

Fig. 7 is a schematic combination diagram of a first gear member and a second gear member of the fan shown in fig. 1.

FIG. 8 is a perspective view of the magnetically attracted base of the fan of FIG. 1 in a supported state.

FIG. 9 is an exploded view of the magnetically attracted base of the fan of FIG. 1.

Fig. 10 is a perspective view of a fan according to a second embodiment of the present invention.

Fig. 11 is a perspective view of the fan of fig. 10 at another angle.

Fig. 12 is a partially exploded schematic view of the fan shown in fig. 10.

Fig. 13 is an exploded view of the fan of fig. 10.

Fig. 14 is a sectional view of the fan shown in fig. 10.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "center", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are used primarily to better describe the invention and its embodiments and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the present invention can be understood by those skilled in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

Furthermore, the terms "first," "second," and the like, are used primarily to distinguish one device, element, or component from another (the specific nature and configuration may be the same or different), and are not used to indicate or imply the relative importance or number of the indicated devices, elements, or components. "plurality" means two or more unless otherwise specified.

Example one

Referring to fig. 1 to 9, fig. 1 is a perspective view of a fan 1 according to a first embodiment of the present invention. Fig. 2 is a perspective view of the fan 1 shown in fig. 1 at another angle. Fig. 3 is a perspective view of the fan 1 shown in fig. 1 in a supporting state. Fig. 4 is a partially exploded schematic view of the fan 1 shown in fig. 1. Fig. 5 is an exploded schematic view of the fan 1 shown in fig. 1. Fig. 6 is a sectional view of the fan 1 shown in fig. 1. Fig. 7 is a combined schematic view of the first gear member 31 and the second gear member 32 of the fan 1 shown in fig. 1. Fig. 8 is a perspective view of the magnetic base 20 of the fan 1 shown in fig. 1 in a supporting state. Fig. 9 is an exploded view of the magnetic base 20 of the fan 1 shown in fig. 1. The embodiment of the invention provides a fan 1, wherein the fan 1 comprises a fan main body 10 and a magnetic base 20. Base 20 is used for supporting fan main part 10 is inhaled to magnetism, inhale base 20 with magnetic force looks between the fan main part 10 is inhaled in order to realize having the magnetism of two at least different relative positions and can dismantle the connection, thereby makes fan main part 10's air-out direction can be adjusted, makes the user adjust the air-out direction according to the user demand, facilitates the use.

The fan body 10 comprises a housing 11 having a fan receiving cavity 111 and a fan assembly 112 located in the fan receiving cavity 111, wherein the fan assembly 112 comprises a cross-flow fan 112a arranged along a preset direction, the housing 11 further comprises an air outlet communicated with the fan receiving cavity 111, and the cross-flow fan 112a is used for blowing air towards the air outlet 113; base 20 is used for supporting fan main part 10 is inhaled to magnetism, has base main part 21, wherein, base 20 is inhaled still including set up in base main part 21's first magnetism spare or base main part 21 is first magnetism spare, fan main part 10 still include second magnetism spare or casing 11 is second magnetism spare, second magnetism spare be used for with first magnetism spare magnetic force attracts mutually, so that base 20 is inhaled to magnetism with it can dismantle the connection to realize magnetism between the fan main part 10. The cross-flow fan 112a is also called a cross-flow fan, and an impeller thereof is a multi-blade type, long cylindrical shape, and has a forward multi-blade shape. When the impeller rotates, the airflow enters the blade cascade from the opening part of the impeller, passes through the inside of the impeller and is discharged into the volute from the blade cascade on the other side to form working airflow, and because the cross flow fan 112a has little low interference, the wind blown by the cross flow fan 112a is concentrated. Thus, it can send wind far under low noise condition, and can change wind flow direction easily. It can be understood that, when the fan 1 of this embodiment is used, the cross flow fan 112a blows towards the air outlet 113 communicating with the fan storage cavity 111 in the fan storage cavity 111, so as to achieve the purpose of cooling, and meanwhile, the first magnetic member and the second magnetic member are magnetically attracted, so that the magnetic connection between the magnetic base 20 and the fan main body 10 is realized, and the magnetic base can be detached from the magnetic base through the first magnetic member and the second magnetic member, so that the fan 1 is convenient to detach and store when not used.

In the fan 1 provided by the embodiment of the invention, the first magnetic part is arranged on the magnetic base 20, and the second magnetic part magnetically attracted with the first magnetic part is arranged on the fan main body 10, so that the magnetic base 20 and the fan main body 10 can be magnetically detachably connected, the air outlet range of the fan 1 is wider, the requirement of a user for multi-direction air outlet and temperature reduction is met, the user feels more comfortable, the fan 1 is convenient to detach and connect, the fan assembly 112 is convenient to carry and use, the user experience is better, in addition, the fan assembly 112 is accommodated in the fan accommodating cavity 111, the fan 1 is safer and has less noise when in use, the structure of the whole fan 1 is simpler, the occupied space is smaller, the fan assembly 112 adopts the cross flow fan 112a, the air outlet speed can be uniform, the comfort level of the human body is improved.

Specifically, in this embodiment, the magnetic base 20 includes a first magnetic member disposed on the base body 21, the fan body 10 further includes a second magnetic member disposed on the housing 11, and the second magnetic member is configured to be magnetically connected to the first magnetic member, so that the magnetic base 20 and the fan body 10 are detachably connected to each other. It can be understood that the first magnetic member may be embedded inside the base main body 21 by casting, integral molding, or the like, and the second magnetic member may also be embedded inside the housing 11 by casting, integral molding, or the like, in other embodiments, the base main body 21 and the housing 11 may be directly made of a magnetic material or a material that can be magnetically attracted by a magnetic material, that is, the base main body 21 is the first magnetic member, and the housing 11 is the second magnetic member. The first magnetic part is arranged on the base main body 21, the second magnetic part magnetically connected with the first magnetic part is arranged on the shell 11, so that the magnetic attraction base 20 and the fan main body 10 can rotate relatively to realize the magnetic detachable connection at various different relative positions, the air outlet direction of the fan main body 10 is adjusted, the air outlet range of the fan 1 is wider, the requirement of a user for multi-directional air outlet and temperature reduction is met, the user is more comfortable, the magnetic attraction base 20 and the fan main body 10 are convenient to detach and connect, the fan 1 is convenient to carry and use, the user experience is better, meanwhile, the magnetic attraction base 20 or the fan main body 10 is rotated to realize the magnetic connection at various different relative positions between the magnetic attraction base 20 and the fan main body 10, the air outlet direction of the fan main body 10 is adjusted, the operation is convenient, and the magnetic attraction base 20 and the fan main body 10 are always magnetically connected in the rotating process, the safety and stability of the fan 1 in operation are ensured.

Further, one of the first magnetic part and the second magnetic part is a permanent magnet, and the other of the first magnetic part and the second magnetic part is a permanent magnet or a soft magnet. It can be understood that the first magnetic member and the second magnetic member may be both permanent magnets, or one of the first magnetic member and the second magnetic member may be a permanent magnet and the other one may be a soft magnet, where the permanent magnet is a magnet capable of retaining high remanence for a long time in an open circuit state, such as a natural magnet (magnetite), an artificial magnet (alnico), and the like, and the soft magnet is a magnet made of iron and the like, and the magnetism is not permanently maintained, such as an iron-silicon alloy (silicon steel sheet), and both the permanent magnet and the soft magnet are common magnetic materials, and the production process is also quite mature. One of the first magnetic part and the second magnetic part is a permanent magnet, and the other of the first magnetic part and the second magnetic part is a permanent magnet or a soft magnet, so that the magnetic material is easy to generate and process, low in generation cost and suitable for batch production.

Further, the housing 11 includes a sidewall structure 114 disposed around the preset direction and covering the outer side of the cross flow fan 112a, and two end plates 115 respectively connected to two ends of the sidewall structure 114, where the air outlet 113 includes a strip-shaped air outlet disposed on the sidewall structure 114 and extending along the preset direction; the housing 11 further has an air inlet 116 communicating with the fan receiving chamber 111. Through the arrangement of the side wall structure 114 which is annularly arranged around the preset direction and is covered on the outer side of the cross flow fan 112a and the two end plates 115 which are respectively connected with the two ends of the side wall structure 114, the cross flow fan 112a can be accommodated in the fan accommodating cavity 111 which is formed by the side wall structure 114 and the end plates 115 in an enclosing mode, so that the air inlet and outlet of the cross flow fan 112a are more concentrated, the air outlet is arranged in a strip shape, the air outlet 113 can be matched with the air outlet direction of the cross flow fan 112a, and the air inlet and outlet efficiency of the cross flow fan 112a is improved.

Specifically, the number of the strip-shaped air outlets is plural, and the plural air outlets 113 are arranged in a matrix shape along the preset direction and a direction perpendicular to the preset direction. Through setting up the quantity of bar air outlet is a plurality of, and is a plurality of air outlet 113 is followed predetermine direction and perpendicular the direction of predetermineeing the direction is arranged into the matrix form, can make the air-out of fan 1 is more even, simultaneously, can prevent that the user from carelessly inserting into fan 1 with fingers etc. in the use, arouses injured problem, can also prevent debris such as dust, hair from entering fan 1, it is right fan 1 causes the harm, has ensured the security in the 1 use of fan.

Further, the air inlets 116 are in a strip shape extending along the preset direction, the number of the air inlets 116 is multiple, and the multiple air inlets 116 are arranged in a matrix shape along the preset direction and a direction perpendicular to the preset direction. Through setting up air intake 116 is for following the bar that the direction of predetermineeing the extension, the quantity of air intake 116 is a plurality of, and is a plurality of air intake 116 is followed predetermine direction and perpendicular predetermine the direction of direction and arrange into the matrix form, can make the air inlet of fan 1 is more even, simultaneously, can prevent that the user from carelessly inserting fan 1 with fingers etc. in the use, arousing injured problem, can also prevent debris such as dust, hair from entering fan 1, it is right fan 1 causes the harm, has ensured the security in the fan 1 use.

Further, the sidewall structure 114 has a first outer surface 114a located at an outer side, the base main body 21 has a second outer surface 211 corresponding to the first outer surface 114a, one of the first outer surface 114a and the second outer surface 211 includes an arc-shaped convex surface, the other one of the first outer surface 114a and the second outer surface 211 is an arc-shaped concave surface adapted to the arc-shaped convex surface, the arc-shaped convex surface and the arc-shaped concave surface are magnetically attracted to each other by the first magnetic member and the second magnetic member, and the arc-shaped convex surface can rotate in the arc-shaped concave surface, so that the fan main body 10 rotates relative to the magnetic base 20, thereby adjusting the air outlet direction of the fan main body 10. It can be understood that, in this embodiment, the first outer surface 114a may be an arc-shaped convex surface, and the second outer surface 211 is an arc-shaped concave surface adapted to the arc-shaped convex surface, so that the base main body 21 may accommodate the sidewall structure 114 in the recess formed by the arc-shaped concave surface, so that the connection between the fan main body 10 and the magnetic attraction base 20 is firmer and is not easy to drop from the magnetic attraction base 20, and the first outer surface 114a and the second outer surface 211 are configured as arc-shaped structures matching with each other, so that the fan main body 10 can move relative to the magnetic attraction base 20 along the arc-shaped concave surface, thereby changing the relative positions of the two, and being simple and convenient to operate, having a large change range of the relative positions, and having low noise. In other embodiments, the second outer surface 211 may also be an arc-shaped convex surface, and the first outer surface 114a is an arc-shaped concave surface matched with the arc-shaped convex surface. Through first surface 114a with one of second surface 211 includes the protruding surface of arc, first surface 114a with another in second surface 211 be with the protruding surface adaptation's of arc sunken surface, the protruding surface of arc with the protruding surface of arc passes through first magnetic part with second magnetic part magnetism is inhaled and is met, makes fan main body 10 with magnetism is inhaled between the base 20 and is connected more firmly simultaneously, the protruding surface of arc can move in the sunken surface of arc, thereby makes fan main body 10 for magnetism is inhaled the base 20 and is moved, thereby adjusts the air-out direction of fan main body 10, and it can be more smooth and easy to adopt the arc surface to make the rotation between the two, and the noise is little, easily operates.

In this embodiment, a cross section of the first outer surface 114a perpendicular to the predetermined direction is circular. The cross section of the first outer surface 114a perpendicular to the preset direction is circular, so that the shape of the fan accommodating cavity 111 is matched with the shape of the cross flow fan 112a, the air outlet of the cross flow fan 112a is smoother, and the air outlet efficiency of the fan 1 is improved.

Further, the sidewall structure 114 includes a first portion 114b for being close to the magnetic base 20 and connected to the magnetic base 20, and a second portion 114c connected to a side of the first portion 114b far away from the magnetic base 20, and the air outlet 113 is disposed on the second portion 114 c. The air outlet 113 is arranged on the second portion 114c to avoid the magnetic attraction base 20, so that the air outlet of the fan 1 is not affected, and the air outlet efficiency of the fan 1 is improved.

Specifically, the first portion 114b includes a first sub-portion 114g and a second sub-portion 114h, the second portion 114c includes a third sub-portion 114m and a fourth sub-portion 114n, the first sub-portion 114g, the second sub-portion 114h, the third sub-portion 114m and the fourth sub-portion 114n are sequentially connected end to end, the air outlet 113 is located in the third sub-portion 114m, and the air inlet 116 is located in the second sub-portion 114 h. It can be understood that the air outlet 113 is located in the third sub-portion 114m, and the air inlet 116 is located in the second sub-portion 114h, that is, the air outlet 113 is disposed adjacent to the air inlet 116, the air outlet 113 discharges air, and the air inlet 116 feeds air to make the air inlet and outlet circulation path shorter and isolated from each other, thereby effectively improving the air inlet and outlet efficiency of the fan 1. Through will air outlet 113 locates third subsection 114m, air intake 116 locates second subsection 114h makes air outlet 113 with air intake 116 is located adjacent side, makes the business turn over wind of fan 1 keeps apart each other, does not influence each other, can also reduce the distance of business turn over wind simultaneously, improves fan 1's air-out efficiency, reaches rapid cooling's purpose.

Further, the fan 1 further includes a rotation assisting assembly 30, the rotation assisting assembly 30 includes a first gear member 31 disposed on the base main body 21, and a second gear member 32 disposed on the sidewall structure 114 and engaged with the first gear member 31, and the first gear member 31 is movable along the second gear member 32 such that the arc-shaped convex surface rotates in the arc-shaped concave surface. Through the rotation auxiliary assembly 30, the first gear member 31 of the base main body 21 can move along the second gear member 32 disposed on the sidewall structure 114, so that the fan main body 10 can rotate more reliably and controllably relative to the magnetic attraction base 20. It is understood that in other embodiments, the rotation auxiliary assembly 30 can be the first magnetic member disposed on the base body 21 and the second magnetic member disposed on the fan body 10, and the arc-shaped convex surface rotates in the arc-shaped concave surface by changing the magnetic attraction positions of the first magnetic member and the second magnetic member.

Further, the fan 1 further comprises a driving member 40, wherein the driving member 40 is used for driving at least one of the first gear member 31 and the second gear member 32 to rotate, so that the first gear member 31 moves along the second gear member 32. Through setting up driving piece 40 drive first gear 31 with at least one among the second gear 32 rotates, makes first gear 31 follows second gear 32 moves, can make fan main part 10 for magnetism is inhaled base 20 and is rotated accessible remote controller, button etc. and control, and the user of being convenient for more uses, and user experience is better.

Specifically, one of the first gear member 31 and the second gear member 32 is a main gear member 321, the main gear member 321 includes a first base 321a and a plurality of first teeth 321b annularly disposed on an outer edge of the first base 321a, the other one of the first gear member 31 and the second gear member 32 is a sub gear member 311, the sub gear member 311 includes a plurality of second teeth 311a arranged in an arc direction, the second teeth 311a are engaged with the first teeth 321b, and the main gear member 321 rotates such that the plurality of first teeth 321b move along the plurality of second teeth 311 a. Through setting up a plurality ofly second tooth portion 311a is with a plurality of first tooth portion 321b meshing, just main gear part 321 rotates and makes a plurality ofly first tooth portion 321b is along a plurality of second tooth portion 311a motion, can the accurate control main gear part 321 with meshing and motion between the secondary gear part 311 make fan main part 10 is in it is more accurate to inhale rotation on the base 20, and user experience is better.

In this embodiment, the sidewall structure 114 has a through-hole 114d, the second gear 32 is the main gear 321 and is located in the fan-receiving cavity 111 and is installed corresponding to the through-hole 114d, and at least a portion of the second gear 32 is exposed from the through-hole 114d to engage with the first gear 31; the second outer surface 211 forms a plurality of the second tooth portions 311 a. It will be appreciated that the main gear member 321 is driven to rotate by the driving member 40, so that the main gear member 321 moves on the first gear member 31 by meshing with each other, so as to change the relative position between the fan body 10 and the magnetic base 20, the side wall structure 114 is provided with a through mounting opening 114d, and the second gear 32 is the main gear 321, and is positioned in the fan receiving chamber 111 and is installed corresponding to the installation opening 114d, such that the second gear member 32 is at least partially exposed from the installation opening 114d to be engaged with the first gear member 31, the main gear member 321 can be limited and fixed, so that the plurality of first tooth portions 321b move along the plurality of second tooth portions 311a more stably when the main gear member 321 rotates, and the stability and safety of the fan 1 during operation are guaranteed.

Further, the base main body 21 includes a first supporting portion 212 for supporting the fan main body 10, a first fixing portion 213 connected to one end of the first supporting portion 212, and a second fixing portion 214 connected to one end of the first supporting portion 212 far from the first fixing portion 213, wherein the first fixing portion 213 and the second fixing portion 214 are used for abutting against two sides of a first external object to fix the fan 1 on the first external object; and/or one end of the first fixing portion 213 far away from the first supporting portion 212 and one end of the second fixing portion 214 far away from the first supporting portion 212 are further configured to be supported on a second external object, so that the second fixing portion 214 can support a third external object, and/or the magnetic base 20 further includes a third magnetic member, and the third magnetic member is configured to fix the magnetic base to a magnetic external object in an adsorbing manner. It can be understood that, when the user uses the fan 1, the first fixing portion 213 of the fan 1 may be abutted against the first external object to be fixed, such as a computer display screen, the first fixing portion 213 may be firstly clamped in front of the computer display screen, and then the second fixing portion 214 may be abutted against the back of the computer display screen, so that the first fixing portion 213 and the second fixing portion 214 are abutted against two sides of the first external object to clamp and fix the first external object together, thereby fixing the fan 1 on the first external object. Or, the end of the first supporting portion 212 far away from the first fixing portion 213 and the end of the first supporting portion 212 far away from the second fixing portion 214 are further used to support a second external object, such as a desktop, so that the base main body 21 can be used as a support frame to support a third external object, such as a mobile phone, a flat board, etc., in addition, the magnetic base 20 further includes a third magnetic member, which can be separately disposed, or embedded in the base main body 21 by using an integrated molding process or the like together with the first magnetic member, the third magnetic member can be a permanent magnet, such as a natural magnet (magnetite), an artificial magnet (alnico), etc., or a soft magnet, such as a ferrosilicon (silicon sheet), etc., and the magnetic base 20 can be fixed by the third magnetic member through adsorption, In other embodiments, the base body 21 may be made of a magnetic material directly or a material that can be magnetically attracted by a magnetic material, i.e. the base body 21 is the third magnetic member. By arranging the first fixing portion 213 and the second fixing portion 214, the fan 1 can be fixed on the first external object, such as a computer, a tablet, and the like, by the first fixing portion 213 and the second fixing portion 214 abutting against both sides of the first external object, so that the fan 1 can be conveniently used by a user when using the first external object, such as a computer, a tablet, and the like, meanwhile, one end of the first fixing portion 213 away from the first supporting portion 212 and one end of the second fixing portion 214 away from the first supporting portion 212 are also used for supporting on a second external object, such as a desktop, and the like, so that the second fixing portion 214 can support a third external object, such as a mobile phone, a tablet, and the like, in addition, the magnetic base 20 further includes a third magnetic member, and the magnetic base can be directly adsorbed on the magnetic external object by the third magnetic member, therefore, the fan 1 is fixed on the magnetic external object, the use range of the fan 1 is expanded, and the user experience is better.

Specifically, one end of the first fixing portion 213, which is far away from the first supporting portion 212, and one end of the second fixing portion 214, which is far away from the first supporting portion 212, are further used for supporting on the second external object, so that the second fixing portion 214 can support a third external object, and one end of the second fixing portion 214, which is far away from the first supporting portion 212, is provided with an extending end 214b, which extends toward one side of the third external object, so that the extending end 214b and the second fixing portion 214 are respectively used for supporting two sides of the third external object. Through setting up extension end 214b, can make extension end 214b with second fixed part 214 supports respectively the both sides of third external object, ensured the base 20 is inhaled to magnetism is to the stability that third external object supported.

Further, the second fixing portion 214 is further provided with a first hanging portion 214a, and the first hanging portion 214a is used for hanging the base main body 21 on a fourth external object. It can be understood that the base body 21 can be hung on the fourth external object through the first hanging portion 214a, for example, a wall surface, a hanging nail or the like can be installed on the wall surface, so that the fan 1 can be hung on the fourth external object through the base body 21, and the first hanging portion 214a can be arranged to hang the base body 21 on the fourth external object, so that the application range of the fan 1 is expanded, and the user experience is better.

Further, the base 20 further includes an adhesive plate 22, the adhesive plate 22 includes a second hanging portion 221 corresponding to the first hanging portion 214a, the adhesive plate 22 is configured to be fixed on the fourth external object, the second hanging portion 221 is located on a side of the adhesive plate 22 away from the fourth external object, and the second hanging portion 221 is configured to be connected and fixed with the first hanging portion 214a, so that the base body 21 is fixed on the fourth external object through the adhesive plate 22. It will be appreciated that the use of the adhesive sheet 22 allows the fan 1 to be nailed free to the fourth external object to be mounted in suspension. Through setting up the bonding board 22, can make the second hang portion 221 with first hang portion 214a is connected fixedly, makes the base main part 21 passes through the bonding board 22 is fixed on the fourth external object, is convenient for fan 1's suspension is fixed and is taken, and user experience is better.

Further, the second fixing portion 214 is rotatably connected to an end of the first supporting portion 212 far away from the first fixing portion 213, and the second fixing portion 214 is convertible between a folded state and a supporting state. Through setting up second fixed part 214 with the one end rotation connection that first fixed part 213 was kept away from to first supporting part 212 can make fan 1 will second fixed part 214 turns to the holding condition and is used for supporting fan main part 10 when using to not use fan 1 turns back to fold condition and be convenient for accomodate when not using.

Further, the first supporting part 212 comprises a supporting body 212a, a first connecting part 212b connected between one end of the supporting body 212a and the first fixing part 213, and a second connecting part 212c connected between the other end of the supporting body 212a and the second fixing part 214, the first fixing part 213 comprises a hook 213a, and when the second connecting part 212c is in the folded state, the hook 213a is engaged and fixed with one end of the second fixing part 214 far away from the first supporting part 212. By providing the hook 213a on the first fixing portion 213, when the second connecting portion 212c is in the folded state, the hook 213a and the end of the second fixing portion 214 far away from the first supporting portion 212 are engaged and fixed, so that the first fixing portion 213 and the second fixing portion 214 are stably stored when the fan 1 is stored.

Further, the base main body 21 further includes a third connecting portion 215 and a fourth connecting portion 216, the third connecting portion 215 and the fourth connecting portion 216 are disposed opposite to each other and are connected between the first connecting portion 212b and the second connecting portion 212c, the third connecting portion 215 and the fourth connecting portion 216 are further connected to the first supporting portion 212, and the first supporting portion 212 and the first to fourth connecting portions 216 enclose a base receiving cavity 23. Through the first supporting portion 212, the first to the fourth connecting portion 216 enclose into the base accommodating cavity 23, so that the first fixing portion 213 and the second fixing portion 214 are completely accommodated in the base accommodating cavity 23 when folded, the overall structure of the magnetic base 20 is simpler, the occupied space is smaller, and the magnetic base is convenient to accommodate and carry.

Further, the fan assembly 112 includes two cross-flow fans 112a arranged along the preset direction, and a first driving motor 112b and a second driving motor 112c respectively connected to the two cross-flow fans 112a, where the first driving motor 112b and the second driving motor 112c are respectively used for driving the corresponding cross-flow fans 112a to rotate independently, so as to guide the wind from the wind inlet 116 to the wind outlet 113 for blowing out. Through setting up two crossflow fan 112a can effectively increase the air output of fan 1 improves fan 1's air-out efficiency, reaches rapid cooling's purpose.

Example two

Referring to fig. 8 to 12, fig. 8 is a perspective view of a fan 1 according to a second embodiment of the present invention. Fig. 9 is a perspective view of the fan 1 shown in fig. 8 at another angle. Fig. 10 is a partially exploded schematic view of the fan 1 shown in fig. 8. Fig. 11 is an exploded schematic view of the fan 1 shown in fig. 8. Fig. 12 is a sectional view of the fan 1 shown in fig. 8.

The fan 1 in the second embodiment is substantially the same as the fan 1 in the first embodiment, that is, the description of the fan 1 in the first embodiment can be basically applied to the fan 1 in the second embodiment, and the difference between the fan 1 in the second embodiment and the fan 1 in the first embodiment will be mainly described below.

In this embodiment, a cross section of the first outer surface 114a perpendicular to the predetermined direction is a drop shape. The cross section of the first outer surface 114a perpendicular to the preset direction is in a drop shape, so that the shape of the fan accommodating cavity 111 is matched with the shape of the cross flow fan 112a, and a certain guiding effect is provided for air outlet, so that the air outlet of the cross flow fan 112a is guided to the air outlet 113, the air outlet of the cross flow fan 112a is smoother, and the air outlet efficiency of the fan 1 is improved.

The fan disclosed in the embodiments of the present invention is described in detail above, and the principle and the implementation of the present invention are explained in the present document by applying specific embodiments, and the description of the above embodiments is only used to help understanding the fan and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.

Claims (22)

1. A fan, characterized in that the fan comprises:

the fan comprises a fan body and a fan assembly, wherein the fan body comprises a shell with a fan containing cavity and the fan assembly is positioned in the fan containing cavity, the fan assembly comprises a cross-flow fan arranged along a preset direction, the shell also comprises an air outlet communicated with the fan containing cavity, and the cross-flow fan is used for blowing air towards the air outlet;

a magnetic base for supporting the fan body and having a base body,

the base is further provided with a first magnetic part arranged on the base body or the base body is the first magnetic part, the fan body further comprises a second magnetic part or the shell is the second magnetic part, and the second magnetic part is used for being attracted with the magnetic force of the first magnetic part, so that the magnetic attraction base is detachably connected with the fan body in a magnetic mode.

2. The fan of claim 1, wherein the magnetically attractive base comprises a first magnetic member disposed on the base body, the fan body further comprises a second magnetic member disposed on the housing, and the second magnetic member is configured to magnetically couple with the first magnetic member, such that the magnetically attractive base is magnetically detachably coupled with the fan body.

3. The fan as claimed in claim 1, wherein one of the first magnetic member and the second magnetic member is a permanent magnet, and the other of the first magnetic member and the second magnetic member is a permanent magnet or a soft magnet.

4. The fan as claimed in claim 1, wherein the casing includes a sidewall structure surrounding the predetermined direction and covering an outer side of the cross flow fan, and two end plates respectively connecting both ends of the sidewall structure, and the outlet includes a strip outlet disposed on the sidewall structure and extending in the predetermined direction; the shell is also provided with an air inlet communicated with the fan containing cavity.

5. The fan as claimed in claim 4, wherein the number of the strip-shaped outlets is plural, and the plural outlets are arranged in a matrix along the predetermined direction and a direction perpendicular to the predetermined direction.

6. The fan as claimed in claim 4, wherein the air inlet is a strip shape extending along the predetermined direction, the number of the air inlets is plural, and the plural air inlets are arranged in a matrix shape along the predetermined direction and a direction perpendicular to the predetermined direction.

7. The fan as claimed in claim 4, wherein the sidewall structure has a first outer surface located at an outer side, the base body has a second outer surface corresponding to the first outer surface, one of the first outer surface and the second outer surface includes an arc-shaped convex surface, the other of the first outer surface and the second outer surface is an arc-shaped concave surface adapted to the arc-shaped convex surface, the arc-shaped convex surface and the arc-shaped concave surface are magnetically attached to the second magnetic member through the first magnetic member, and the arc-shaped convex surface can rotate in the arc-shaped concave surface, so that the fan body rotates relative to the magnetically attached base, thereby adjusting an air outlet direction of the fan body.

8. The fan as claimed in claim 7, wherein a cross-section of the first outer surface perpendicular to the predetermined direction is circular or drop-shaped.

9. The fan as claimed in claim 7, wherein the sidewall structure includes a first portion for being close to and connected with the magnetic base and a second portion connected to a side of the first portion away from the magnetic base, and the air outlet is disposed in the second portion.

10. The fan as claimed in claim 9, wherein the first portion includes a first sub-portion and a second sub-portion, the second portion includes a third sub-portion and a fourth sub-portion, the first sub-portion, the second sub-portion, the third sub-portion and the fourth sub-portion are sequentially connected end to end, the air outlet is located in the third sub-portion, and the air inlet is located in the second sub-portion.

11. The fan of claim 7 further comprising a rotation assist assembly including a first gear member disposed on the base body, a second gear member disposed on the sidewall structure and engaged with the first gear member, the first gear member being movable along the second gear member such that the arcuate convex surface rotates in the arcuate concave surface.

12. The fan as claimed in claim 11, further comprising a driving member for driving at least one of the first gear member and the second gear member to rotate so that the first gear member moves along the second gear member.

13. The fan as claimed in claim 11, wherein one of the first gear member and the second gear member is a main gear member, the main gear member includes a first base and a plurality of first teeth portions formed around an outer periphery of the first base, the other of the first gear member and the second gear member is a sub gear member, the sub gear member includes a plurality of second teeth portions arranged in an arc direction, the second teeth portions are engaged with the first teeth portions, and the main gear member rotates such that the plurality of first teeth portions move along the plurality of second teeth portions.

14. The fan of claim 13, wherein the sidewall structure has a mounting opening therethrough, the second gear member being the primary gear member and being located in the fan-receiving cavity and mounted in correspondence with the mounting opening, the second gear member being at least partially exposed from the mounting opening to engage the first gear member; the second outer surface forms a plurality of the second teeth.

15. The fan as claimed in claim 1, wherein the base main body includes a first supporting portion for supporting the fan main body, a first fixing portion connected to an end of the first supporting portion, a second fixing portion connected to an end of the first supporting portion remote from the first fixing portion,

the first fixing part and the second fixing part are used for abutting against two sides of a first external object so as to fix the fan on the first external object; and/or one end of the first fixing part far away from the first supporting part and one end of the second fixing part far away from the first supporting part are also used for supporting on a second external object, so that the second fixing part can support a third external object; and/or, the base is inhaled to magnetism still includes the third magnetic part, the third magnetic part is used for with the base is inhaled to magnetism and is inhaled fixedly to magnetism external object on.

16. The fan as claimed in claim 15, wherein an end of the first fixing portion remote from the first supporting portion and an end of the second fixing portion remote from the first supporting portion are further adapted to be supported on the second external object so that the second fixing portion can support the third external object, and an end of the second fixing portion remote from the first supporting portion is provided with an extension end extending toward a side of the third external object so that the extension end and the second fixing portion are respectively adapted to support both sides of the third external object.

17. The fan as claimed in claim 15, wherein the second fixing portion is further provided with a first hanging portion for hanging the base main body on a fourth external object.

18. The fan as claimed in claim 17, wherein the magnetic base further comprises an adhesive plate, the adhesive plate comprises a second hanging portion corresponding to the first hanging portion, the adhesive plate is configured to be fixed on the fourth external object, the second hanging portion is located on a side of the adhesive plate away from the fourth external object, and the second hanging portion is configured to be fixedly connected with the first hanging portion, so that the base body is fixed on the fourth external object through the adhesive plate.

19. The fan as claimed in claim 15, wherein the second fixing portion is rotatably connected to an end of the first supporting portion remote from the first fixing portion, and the second fixing portion is convertible between a folded state and a supporting state.

20. The fan as claimed in claim 19, wherein the first supporting part comprises a supporting body, a first connecting part connecting one end of the supporting body with the first fixing part, and a second connecting part connecting the other end of the supporting body with the second fixing part, the first fixing part comprises a hook, and when the second connecting part is in the folded state, the hook is engaged and fixed with one end of the second fixing part far away from the first supporting part.

21. The fan as claimed in claim 20, wherein the base body further includes a third connecting portion and a fourth connecting portion, the third connecting portion and the fourth connecting portion are disposed opposite to each other and are connected between the first connecting portion and the second connecting portion, the third connecting portion and the fourth connecting portion are further connected to the first supporting portion, respectively, and the first supporting portion, the first connecting portion and the fourth connecting portion define a base receiving cavity.

22. The fan of claim 1, wherein the fan assembly comprises two cross-flow fans arranged along the preset direction, and a first driving motor and a second driving motor respectively connected to the two cross-flow fans, and the first driving motor and the second driving motor are respectively used for driving the corresponding cross-flow fans to rotate independently so as to guide the wind from the wind inlet to the wind outlet.

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