CN215409300U - Fan and magnetic suction base thereof - Google Patents

Abstract

The embodiment of the utility model 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, a fan assembly positioned in the fan containing cavity and a first magnetic piece arranged on the shell; the base is inhaled to magnetism has the base main part and set up in the second magnetism spare of base main part, the second magnetism spare be used for with first magnetism spare magnetism is connected, so that the base is inhaled to magnetism with the magnetism that realizes having two kind at least different relative positions between the fan main part can be dismantled and is connected, thereby the adjustment the air-out direction of fan main part. The fan provided by the embodiment of the utility model can meet the requirement of cooling the air in multiple directions of a user, so that the user feels more comfortable, and meanwhile, the fan is convenient to detach and connect, the fan is convenient to carry and use, and the user experience is better.

Description

Fan and magnetic suction base thereof

Technical Field

The utility model relates to the technical field of fans, in particular to a fan and a magnetic suction base thereof.

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.

SUMMERY OF THE UTILITY MODEL

In view of this, it is desirable to provide a fan and a magnetic base thereof with better user experience.

In one aspect, an embodiment of the present invention provides a fan, which includes a fan main body and a magnetic base. The fan body comprises a shell with a fan containing cavity, a fan assembly positioned in the fan containing cavity and a first magnetic piece arranged on the shell; the base is inhaled to magnetism has the base main part and set up in the second magnetism spare of base main part, the second magnetism spare be used for with first magnetism spare magnetism is connected, so that the base is inhaled to magnetism with the magnetism that realizes having two kind at least different relative positions between the fan main part can be dismantled and is connected, thereby the adjustment the air-out direction of fan main part.

Compared with the prior art, according to the fan provided by the embodiment of the utility model, the fan main body is magnetically connected with the magnetic base through the first magnetic part of the fan main body and the second magnetic part of the magnetic base, so that the magnetic base and the fan main body are detachably connected through magnetism with at least two different relative positions, the air outlet direction of the fan main body is adjusted, the requirement of a user for multi-direction air outlet and cooling can be met, the user feels more comfortable, the fan is convenient to detach and connect, the fan is convenient to carry and use, the user experience is better, in addition, the fan assembly is accommodated in the fan accommodating cavity, the fan is safer when in use, the noise is smaller, the structure of the whole fan is simpler, and the occupied space is smaller.

In one embodiment, the second magnetic member is configured to be magnetically connected to the first magnetic member, so that the magnetic base is rotatable around at least one axial direction relative to the fan body, and the magnetic base is magnetically detachably connected to the fan body at a plurality of different relative positions, thereby adjusting the air outlet direction of the fan body. Through inciting somebody to action magnetism inhale the base around at least one axial direction for fan main part rotates, can make fan main part with it changes to inhale to connect with different angles between the base magnetism inhale the base with fan main part's relative position, and then change the air-out direction of fan satisfies the different user demands of user, simultaneously, second magnetism spare with first magnetism spare passes through magnetism and connects, and convenient to assemble dismantles makes fan portable and installation, convenience of customers uses, promotes user satisfaction.

In one embodiment of the present invention, the casing has a first rotating connection portion, the magnetic attraction base has a fixing member and a second rotating connection portion connected to the fixing member, the fixing member is configured to fix the magnetic attraction base on an external object, the first rotating connection portion is provided with the first magnetic member, the second rotating connection portion is provided with the second magnetic member or the second rotating connection portion is a second magnetic member, the second rotating connection portion is magnetically connected to the first rotating connection portion and can rotate relative to the first rotating connection portion, so as to adjust an air outlet direction of the fan main body, 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. The magnetic base is fixed on an external object by the fixing piece, so that the fan is fixed on the external object, such as a computer display screen, a panel and other external objects, the fan is convenient for a user to use, the use range of the fan is expanded, the user experience is better, meanwhile, the first rotating connecting part with the first magnetic piece and the second rotating connecting part with the second magnetic piece or the second rotating connecting part are arranged to be the second magnetic piece, the fan main body is magnetically connected with the magnetic base, and simultaneously, the air outlet direction of the fan is convenient for the user to change by rotating the relative position of the fan main body and the magnetic base, so that the operation is simpler and more convenient, wherein one of the first magnetic piece and the second magnetic piece is a permanent magnet, and the other of the first magnetic piece and the second magnetic piece is a permanent magnet or a soft magnet, easy to produce and process, low in production cost and suitable for batch production.

In one embodiment, the first rotating connecting part comprises a cambered surface convex part which is convex towards the magnetic suction base, and the second rotating connecting part comprises a cambered surface concave part which is used for accommodating the cambered surface convex part and is in rotating fit with the cambered surface convex part; or first rotation connecting portion include the orientation the sunken cambered surface depressed part of base is inhaled to magnetism, the second rotate connecting portion including accomodate in cambered surface depressed part and in cambered surface depressed part normal running fit's cambered surface bellying. The first rotary connecting part is provided with an arc-shaped protruding part protruding towards the magnetic suction base, and the second rotary connecting part is provided with an arc-shaped recessed part which is used for accommodating the arc-shaped protruding part and is in rotary fit with the arc-shaped protruding part; or first rotation connecting portion set up the orientation the sunken cambered surface depressed part of base is inhaled to magnetism the second rotate connecting portion set up accomodate in cambered surface depressed part just in cambered surface depressed part normal running fit's cambered surface bellying can make first rotation connecting portion with when the second rotates between the connecting portion magnetism to be connected more firmly, first rotation connecting portion with the cooperation of second rotation connecting portion cambered surface makes the base is inhaled to magnetism can rotate for around at least one axis direction the fan main part rotates, and rotates between the two can be more smooth and easy, easily the operation.

In one embodiment, the cambered surface protruding portion is a spherical protruding portion, the cambered surface recessed portion is a spherical recessed portion, and the spherical protruding portion rotates in the spherical recessed portion, so that the magnetic suction base can rotate around a plurality of different axial directions relative to the fan body, and the air outlet direction of the fan body is adjusted. Through inciting somebody to action cambered surface bellying is established to spherical bellying, the cambered surface depressed part is established to spherical depressed part, can make the base is inhaled to magnetism can be around a plurality of different axis directions for fan body rotates, and rotates smoothly, rotates the in-process fan body also is difficult for following drop on the base is inhaled to magnetism, has ensured the security and the easy operability of fan.

In one embodiment, the fixing member includes a first fixing member and a second fixing member, the first fixing member is connected to one end of the second rotation connecting portion, the second fixing member is connected to the other end of the second rotation connecting portion, and the first fixing member and the second fixing member are used for abutting against two sides of the external object; at least one of the first fixing member and the second fixing member is rotatably coupled to the second rotation coupling portion. Through setting up first mounting with the second mounting can make the fan is fixed on external article such as computer, panel, and the user of being convenient for uses, has enlarged the application range of fan, user experience is better, simultaneously, first mounting with the butt of second mounting the both sides of external object can increase the fan is with the fixed stability of external object, has ensured stability and the security of fan during operation, and, first mounting with at least one in the second mounting rotate connect in on the second rotates connecting portion, can be through rotating first mounting with at least one in the second mounting is right the fan is fixed and is taken, and the user of being convenient for uses, and user experience is better.

In one embodiment, the second rotating connection part comprises a rotating connection body, a first connection end and a second connection end, the rotating connection body is connected between the first connection end and the second connection end, the rotating connection body comprises a first surface close to one side of the fan body and a second surface located on the opposite side of the first surface, the first surface is recessed towards the side far away from the fan body to form the cambered surface recessed part, the second surface is a cambered surface protruding towards the side far away from the fan body, and the first connection end is connected between one end of the rotating connection body and the first fixing piece; the second connecting end is connected between the other end of the rotary connecting body and the second fixing piece. Through setting up the first surface is kept away from for the orientation fan main part one side is sunken to be formed cambered surface depressed part, the second surface is kept away from for the orientation the bellied arc surface in fan main part one side can with fan main part holding is in magnetism is inhaled on the base, has ensured fan main part with the stability that the base is connected is inhaled to magnetism, makes the fan during operation, fan main part can not follow magnetism is inhaled and is dropped on the base, has ensured the security of fan.

In one embodiment, the first fixing piece is vertically connected with the first connecting end and extends towards a direction away from the fan main body, the second connecting end also extends towards a direction away from the fan main body, and the extending direction of the second connecting end is the same as the extending direction of the first fixing piece; the first fixing piece is close to one side of the rotary connecting main body and used for being abutted to one side of the external object, the second fixing piece comprises an arc-shaped structure protruding towards one side where the first fixing piece is located, and the arc-shaped structure is used for being abutted to the other side of the external object. Through setting up first mounting is connected perpendicularly first link end just faces and is kept away from the direction of fan main part extends, first mounting is close to one side of rotating link body is used for the butt one side of external object, the second mounting includes towards the bellied arc structure of first mounting place one side, the arc structure is used for the butt the opposite side of external object can make first mounting with the second mounting is from the front and back two sides of external object with the external object centre gripping, makes the fixing of fan is more firm, stable.

In one embodiment, the casing includes an annular first sidewall structure, an annular second sidewall structure sleeved on the periphery of the first sidewall structure, a connecting portion connected between the first sidewall structure and the second sidewall structure, and an extending portion disposed opposite to the connecting portion, the first sidewall structure, the second sidewall structure, the connecting portion, and the extending portion are further configured to enclose the fan receiving cavity, an annular air duct communicated with the fan receiving cavity, and an air outlet communicated with the annular air duct, and the air outlet is an annular air outlet or includes a plurality of sub air outlets annularly arranged corresponding to the annular air duct; the first rotating connecting portion is arranged on one side wall portion of the second side wall structure and used for enclosing the fan accommodating cavity, and the fan assembly is used for blowing out wind through the annular air duct and the corresponding air outlet. The fan assembly comprises a fan housing formed by an annular first side wall structure, an annular second side wall structure sleeved on the periphery of the first side wall structure, a connecting part connected with the first side wall structure and the second side wall structure, and an extending part arranged opposite to the connecting part, wherein the fan housing is enclosed by the first side wall structure, the second side wall structure, the connecting part and the extending part, and the fan housing cavity, an annular air duct communicated with the fan housing cavity and an air outlet communicated with the annular air duct are enclosed by the first side wall structure, the second side wall structure, the connecting part and the extending part, the fan assembly can blow out air through the annular air duct and the corresponding air outlet, thereby achieving the purposes of air outlet and cooling and making a user more comfortable, the fan assembly is wrapped in the housing, so that the fan is safer when in use, has smaller noise, and the whole structure of the fan is simpler, occupation space is littleer, simultaneously, through annular wind channel reaches annular air outlet blows off wind, makes the air-out of fan is close natural wind more, makes the body feel more comfortable when the user uses.

In one embodiment, the housing includes two first side wall structures which are arranged side by side and are annular, the second side wall structure is sleeved on the peripheries of the two first side wall structures, so that the two first side wall structures, the second side wall structure and the connecting portion are further used for enclosing the fan receiving cavity between the two first side wall structures, the two annular air ducts with central axes arranged side by side and the two air outlets respectively communicated with the two annular air ducts, and two ends of the fan receiving cavity are respectively communicated with the two annular air ducts; the shell further comprises an air inlet communicated with the fan accommodating cavity; the fan shaft of the fan assembly is parallel to the central axes of the two annular air channels. The two first side wall structures, the second side wall structures and the connecting part are also used for enclosing the fan containing cavity between the two first side wall structures, the annular air channels with two parallel central axes and the two air outlets respectively communicated with the two annular air channels by arranging the two annular first side wall structures which are arranged side by side and the connecting part, the two ends of the fan containing cavity are respectively communicated with the two annular air channels, the air inlet is communicated with the fan containing cavity, the fan shaft of the fan assembly is parallel to the central axes of the two annular air channels, so that the fan assembly can blow the outlet air into the two annular air channels simultaneously, the outlet air efficiency of the fan is improved, the outlet air is more balanced, the comfort level of a human body is improved, and the fan shaft of the fan assembly is arranged to be parallel to the central axes of the two annular air channels simultaneously, the loss of the air outlet of the fan assembly in the annular air duct can be reduced to the greatest extent, and the air outlet efficiency of the fan is higher.

In one embodiment, the extension portion is connected to one end of the second side wall structure away from the connecting portion, the end of the extension portion away from the second side wall structure and one ends of the two first side wall structures away from the connecting portion respectively enclose two air outlets, and the air outlets are slit air outlets which emit air towards one side where the connecting portion is located; the two first side wall structures further enclose a hollow air outlet channel, and air outlet of the air outlet is blown out from one side of the connecting portion after accelerated convergence of the air outlet channel. Through setting up the air outlet is for the orientation the slit formula air outlet of connecting portion place one side air-out can play the effect that carries out furthest's compression to the air-out, and can make annular wind channel is close to the atmospheric pressure of air outlet part is greater than the outside atmospheric pressure of air outlet to form the negative pressure will the air-out in the annular wind channel is pressed to the air outlet, makes the air-out speed faster, improves the air-out efficiency of fan, in addition, two first side wall structure still encloses into hollow air-out passageway, the air-out of air outlet can be after blowing off the air-out passageway is assembled with higher speed and is blown off towards one side at connecting portion place, makes the air-out more accurate, concentrate, thereby reaches rapid cooling's purpose, improves the air-out efficiency of fan.

In one embodiment, the first side wall structure comprises a first arc-shaped side wall protruding towards the inner side, the second side wall structure comprises a second arc-shaped side wall protruding towards the side far away from the first side wall structure, and the distance between the first arc-shaped side wall and the second arc-shaped side wall gradually increases and then decreases along the direction from the connecting part to the extending part; the outer surface of the second arc-shaped side wall, which is far away from the second side wall structure, is an arc-shaped surface protruding towards the inner side and used for guiding the wind of the air outlet towards one side where the connecting part is located. By arranging the first side wall structure to comprise a first arc-shaped side wall protruding towards the inner side, the second side wall structure to comprise a second arc-shaped side wall protruding towards one side far away from the first side wall structure, and the distance between the first arc-shaped side wall and the second arc-shaped side wall gradually increases and then decreases along the direction from the connecting part to the extending part, the volume of the annular air duct can be increased, the air outlet plays a role in compressing and accelerating the outlet air to blow out the outlet air more quickly, and the outlet air of the air outlet can play a role in cooling, in addition, the outer surface of the second arc-shaped side wall far away from the second side wall structure is an arc-shaped surface protruding towards the inner side, and is used for guiding the air of the air outlet towards one side where the connecting part is located, and after the outlet air of the air outlet is compressed and discharged, the arc-shaped surface is punched along the original direction under the action of inertia, the air near the arc-shaped surface is driven to rush down together, a boosting effect like a waterfall is formed, and the air outlet efficiency of the fan is improved.

In one embodiment, the first side wall structure includes a first annular edge and a second annular edge that are disposed opposite to each other, the second side wall structure includes a third annular edge and a fourth annular edge that are disposed opposite to each other, the extending portion connects the fourth annular edge, a portion of the extending portion away from the fourth annular edge and the second annular edges of the two first side wall structures respectively enclose the two air outlets, and the air inlet is located on the second side wall structure, the connecting portion, or the extending portion. Through setting up with the extension that connecting portion set up relatively, just the extension is kept away from the part at fourth annular edge encloses into two respectively with two the second annular edge of first side wall structure the air outlet makes the air outlet with the distance in annular air duct is shorter, reduces the loss in the air-out process, just extension and two first side wall structure enclose into two the air outlet can make the overall structure of fan is succinct more, occupation space is littleer, makes the fan portable, accomodate, and application scope is wider.

In one embodiment, the connecting portion includes a first connecting portion connecting the first annular edge and the third annular edge, and a second connecting portion connecting the first annular edge and the third annular edge of the first sidewall structures, the second connecting portion includes a first main portion, a first edge portion and a second edge portion, the first edge portion is connected between the first main portion and one of the first sidewall structures, the second edge portion is connected between the first main portion and the other of the first sidewall structures, the first main portion is further connected to the third annular edge, the extending portions include a first extending portion disposed opposite to the first connecting portion and a second extending portion disposed opposite to the second connecting portion, and the second extending portion includes a second main portion, a second extending portion, A third edge portion and a fourth edge portion, the second edge portion being connected between one end of the second body portion and one end of the fourth annular edge and being opposite to the first edge portion, the fourth edge portion being connected between the other end of the second body portion and the other end of the fourth annular edge and being opposite to the second edge portion, the second body portion being further connected to the fourth annular edge, the air inlet being located on the second body portion, the first body portion, the second sidewall structure connecting the first body portion, the second body portion enclosing the fan-receiving chamber, the first edge portion, the first connecting portion, the first sidewall structure, the second sidewall structure, the third edge portion enclosing one of the annular air ducts, the second edge portion, the second connecting portion enclosing one of the annular air ducts, The first side wall structure, the second side wall structure and the fourth edge portion enclose another annular air duct. The first connecting portion and the first extending portion are oppositely arranged, the second connecting portion and the second extending portion are oppositely arranged, and the air inlet is arranged on the second main body portion, the first main body portion, the second side wall structure connected with the first main body portion, and the second main body portion enclose the fan receiving cavity, the first edge portion, the first connecting portion, the first side wall structure, the second side wall structure, and the third edge portion enclose one annular air duct, the second edge portion, the second connecting portion, the first side wall structure, the second side wall structure, and the fourth edge portion enclose another annular air duct, so that the structure of the fan is simple, the air outlet of the fan is more balanced, and the air outlet efficiency of the fan is improved, and simultaneously, the service life of the fan is prolonged.

In one embodiment, the extension part extends towards one side of the connecting part and is at least partially located at the periphery of the second annular edge of the first side wall structure, and the extension part and the first side wall structure enclose the air outlet blowing towards one side of the connecting part; the second side wall structure comprises a first side wall part, a second side wall part, a third side wall part and a fourth side wall part which are sequentially connected in an encircling manner, and the first side wall part and the third side wall part are oppositely arranged; the first side wall portion and the third side wall portion are provided with two first portions which are oppositely arranged along the length direction and a second portion which is connected between the two first portions, the first portions are connected between the corresponding first connecting portions and the corresponding first extending portions, the second portion is connected between the second connecting portions and the second extending portions, and the first rotating connecting portions are arranged on the first side wall portions. Through setting up the extension orientation one side at connecting portion place is extended and at least part is located the second annular edge periphery of first side wall structure can make the extension with first side wall structure encloses into the orientation connecting portion place one side is bloied the air outlet makes the air-out more accurate, concentrate to reach rapid cooling's purpose, improve the air-out efficiency of fan.

In one embodiment, the second portion of at least one of the first and third sidewall portions is a third arcuate sidewall projecting away from an outer side of the first sidewall structure such that the shape of the fan receiving cavity is adapted to an outer contour of the fan assembly. Through setting up with the third arc lateral wall of fan unit's outline adaptation, can make fan unit can have suitable accommodation space, is convenient for fan unit works, improves the air-out efficiency of fan.

In another aspect, an embodiment of the present invention provides a magnetic base for a fan, where the magnetic base includes a base main body and a second magnetic member disposed on the base main body, and the second magnetic member is magnetically connected to a first magnetic member of the fan main body, so that the magnetic base and the fan main body are magnetically detachably connected to each other at least two different relative positions, thereby adjusting an air outlet direction of the fan main body.

Compared with the prior art, the magnetic base for the fan provided by the embodiment of the utility model has the advantages that the second magnetic part magnetically connected with the first magnetic part of the fan main body is arranged, so that the magnetic detachable connection with at least two different relative positions is realized between the magnetic base and the fan main body, the air outlet direction of the fan main body is adjusted, the requirement of a user for multi-direction air outlet cooling can be met, the user is more comfortable, the fan main body is also convenient to detach and connect, the fan with the magnetic base and the fan main body is convenient to carry, the use by the user is convenient, and the user experience is better. The use scenes are wider.

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 an embodiment of the present invention.

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

Fig. 3 is an exploded perspective view of the fan shown in fig. 1.

Fig. 4 is another perspective exploded view of the fan shown in fig. 1.

Fig. 5 is a sectional view of the fan shown in fig. 1.

Fig. 6 is a cross-sectional view of the fan shown in fig. 1 at another angle.

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 utility model 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.

Referring to fig. 1 to 6, fig. 1 is a perspective view of a fan 1 according to an 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 an exploded perspective view of the fan 1 shown in fig. 1. Fig. 4 is another perspective exploded view of the fan 1 shown in fig. 1. Fig. 5 is a sectional view of the fan 1 shown in fig. 1. Fig. 6 is a cross-sectional view of the fan 1 shown in fig. 1 at another angle. The embodiment of the utility model provides a fan 1, wherein the fan 1 comprises a fan main body 1a and a magnetic base 1 b. Fan 1 fan main part 1a with base 1b is inhaled to magnetism can be connected through magnetism, through changing fan main part 1a with base 1b is inhaled to magnetism's relative position, can adjust fan main part 1 a's air-out direction makes the user can adjust air-out direction according to the user demand, facilitates the use.

The fan body 1a comprises a shell 10 with a fan receiving cavity 16, a fan assembly 30 positioned in the fan receiving cavity 16, and a first magnetic piece arranged on the shell 10; base 1b is inhaled to magnetism has base main part 50 and set up in base main part 50's second magnetism spare, second magnetism spare be used for with first magnetism spare magnetism is connected, so that base 1b is inhaled to magnetism with the magnetism that realizes having two at least different relative positions between fan main part 1a can dismantle the connection, thereby adjusts fan main part 1 a's air-out direction. It can be understood that when needs use during fan 1, can with fan main body 1a first magnetism spare with base 1b is inhaled to magnetism to the second magnetism is inhaled the connection, and through the adjustment fan main body 1a magnetism is inhaled the connection on base 1b with the connection angle adjustment of base 1b is inhaled to magnetism fan main body 1 a's air-out direction, when need not use during fan 1, can with fan main body 1a follows dismantle convenient storage on the base 1b is inhaled to magnetism.

In the fan 1 provided by the embodiment of the present invention, the first magnetic member of the fan main body 1a and the second magnetic member of the magnetic base 1b are disposed to magnetically connect the fan main body 1a and the magnetic base 1b, so that the magnetic base 1b and the fan body 1a can be magnetically detachably connected with each other at least two different relative positions, thereby adjusting the air outlet direction of the fan main body 1a, meeting the requirement of the user for multi-directional air outlet and temperature reduction, ensuring that the user feels more comfortable, the fan 1 is convenient to disassemble and connect, is convenient to carry and use by users, has better user experience, in addition, the fan assembly 30 is accommodated in the fan accommodating cavity 16, so that the fan 1 is safer and has less noise when in use, and the whole fan 1 has a simpler structure and occupies a smaller space.

Specifically, the second magnetic member is configured to be magnetically connected to the first magnetic member, so that the magnetic base 1b can rotate around at least one axis direction relative to the fan main body 1a, and the magnetic base 1b and the fan main body 1a are detachably connected by magnetism at a plurality of different relative positions, thereby adjusting the air outlet direction of the fan main body 1 a. It can be understood that the magnetic base 1b can rotate relative to the fan body 1a around at least one axial direction, such as a horizontal axial direction, a vertical axial direction, or any axial direction between the horizontal axial direction and the vertical axial direction, so as to adjust the air outlet direction of the fan body 1a, and make the air outlet range of the fan body 1a larger. Through inciting somebody to action base 1b is inhaled to magnetism around an at least axis direction for fan main part 1a rotates, can make fan main part 1a with inhale and connect fixedly thereby change with different angles between base 1b magnetism inhale base 1b with fan main part 1 a's relative position, and then change fan 1's air-out direction satisfies the different user demands of user, simultaneously, second magnetism spare with first magnetism spare passes through magnetism and connects, and the installation of being convenient for is dismantled, makes fan 1 portable and installation, and convenience of customers uses, promotes user satisfaction.

Further, the casing 10 has a first rotating connection portion 19, the magnetic base 1b has a fixing member 20 and a second rotating connection portion 70 connected to the fixing member 20, the fixing member 20 is used for fixing the magnetic base 1b to an external object, the first rotating connection portion 19 is provided with the first magnetic member, the second rotating connection portion 70 is provided with the second magnetic member or the second rotating connection portion 70 is a second magnetic member, the second rotating connection portion 70 is magnetically connected to the first rotating connection portion 19 and can rotate relative to the first rotating connection portion 19, so as to adjust the air outlet direction of the fan main body 1a, 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. It is understood that the first magnetic member can be embedded inside the first rotating connecting portion 19 by casting, integral molding, or the like, and the second magnetic member can also be embedded inside the second rotating connecting portion 70 by casting, integral molding, or the like, in some embodiments, the second rotating connecting portion 70 can be directly made of a magnetic material or a material that can be magnetically attracted by a magnetic material, that is, the second rotating connecting portion 70 is the second magnetic member. In this embodiment, 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 of the magnet cannot be permanently maintained, such as an iron-silicon alloy (silicon steel sheet), and both the permanent magnet and the soft magnet are common magnetic materials. The magnetic base 1b is fixed on an external object by the fixing member 20, so that the fan 1 is fixed on an external object, such as a computer display screen, a tablet, and the like, which is convenient for a user to use, enlarges the application range of the fan 1, and provides better user experience, and meanwhile, the first rotating connecting portion 19 having the first magnetic member and the second rotating connecting portion 70 having the second magnetic member or the second rotating connecting portion 70 are provided as second magnetic members, so that the air outlet direction of the fan 1 can be changed by changing the relative position of the fan main body 1a and the magnetic base 1b while the fan main body 1a and the magnetic base 1b are magnetically connected, so that the operation is simpler and more convenient, wherein one of the first magnetic member and the second magnetic member is a permanent magnet, the other one 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.

Specifically, the first rotating connecting part 19 comprises an arc-shaped protruding part 191 protruding towards the magnetic base 1b, and the second rotating connecting part 70 comprises an arc-shaped concave part 71 receiving the arc-shaped protruding part 191 and rotationally matching with the arc-shaped protruding part 191; or the first rotating connection part 19 comprises an arc-shaped concave part which faces the magnetic attraction base 1b and is concave, and the second rotating connection part 70 comprises an arc-shaped convex part which is contained in the arc-shaped concave part and is in running fit with the arc-shaped concave part. It can be understood that, in this embodiment, the first rotating connection portion 19 may be set to face the arc-shaped protruding portion 191 protruding from the magnetic base 1b, and the second rotating connection portion 70 is set to receive the arc-shaped protruding portion 191 and the arc-shaped recessed portion 71 rotationally matched with the arc-shaped protruding portion 191, so that the second rotating connection portion 70 may form a receiving cavity recessed to one side far away from the fan body 1a and having an opening to receive the first rotating connection portion 19 matching therewith, so as to receive the fan body 1a therein, so that the fan body 1a and the magnetic base 1b are connected more firmly and are not easy to fall off from the magnetic base 1b, and the first rotating connection portion 19 and the second rotating connection portion 70 are set to be arc structures matching with each other, so that the magnetic base 1b can be magnetically attracted around the horizontal axis X, At least one axial direction of the vertical axial direction Y or any axial direction between the horizontal axial direction X and the vertical axial direction Y rotates relative to the fan main body 1a, when the two relative positions are rotated, the first rotating connecting part 19 and the second rotating connecting part 70 only need to slide relatively, the operation is simple and convenient, the change range of the two relative positions is large, and the noise is low. In other embodiments, the first rotating connecting portion 19 can also be configured as an arc-shaped recess portion recessed toward the magnetic base 1b, and the second rotating connecting portion 70 is configured as an arc-shaped protrusion portion received in the arc-shaped recess portion and rotationally engaged with the arc-shaped recess portion. By arranging the first rotating connecting part 19 to comprise an arc-shaped protruding part 191 protruding towards the magnetic base 1b, the second rotating connecting part 70 comprises an arc-shaped concave part 71 which is used for accommodating the arc-shaped protruding part 191 and is in rotating fit with the arc-shaped protruding part 191; or first rotation connecting portion 191 includes the orientation the sunken cambered surface depressed part of base 1b is inhaled to magnetism, the second rotate connecting portion 70 including accomodate in cambered surface depressed part just in cambered surface depressed part normal running fit's cambered surface bellying can make first rotation connecting portion 19 with when the second rotates between the connecting portion 70 magnetism and connects more firmly, the change range of relative position between the two is bigger, makes the air-out scope of fan is wider to it is more smooth and easy to rotate, and the noise is little, easily the operation.

Further, the arc-shaped protruding portion 191 is a spherical protruding portion, the arc-shaped recessed portion 71 is a spherical recessed portion, and the spherical protruding portion rotates in the spherical recessed portion, so that the magnetic base 1b can rotate around a plurality of different axial directions relative to the fan body 1b, and the air outlet direction of the fan body 1b is adjusted. It can be understood, cambered surface bellying 191 is spherical bellying, cambered surface bellying 71 is spherical bellying, can make base 1b is inhaled to magnetism around horizontal axial X, perpendicular axial Y and arbitrary axial a plurality of different axial directions between horizontal axial X and the perpendicular axial Y for fan main part 1a realizes 360 degrees rotations, thereby adjusts fan main part 1 b's air-out direction makes fan 1's air-out scope is wider, simultaneously, cambered surface bellying 191 is spherical bellying, cambered surface bellying 71 is spherical bellying, and it is more smooth and easy to slide between the spherical surface, makes base 1b is inhaled to magnetism with rotation between fan main part 1a is easily operated more. Through inciting somebody to action cambered surface bellying 191 is spherical bellying, cambered surface depressed part 71 is spherical depressed part, can make base 1b is inhaled to magnetism can wind a plurality of different axis directions for fan body 1a rotates, and rotates smoothly, rotates the in-process fan body 1a also is difficult for following drop on the base is inhaled to magnetism, has ensured fan 1's security and easy operability. Further, the fixing member 20 includes a first fixing member 21 and a second fixing member 22, the first fixing member 21 is connected to one end of the second rotation connecting portion 70, the second fixing member 22 is connected to the other end of the second rotation connecting portion 70, and the first fixing member 21 and the second fixing member 22 are used for abutting against two sides of the external object; at least one of the first fixing member 21 and the second fixing member 22 is rotatably coupled to the second rotation coupling portion 70. It is understood that, in the present embodiment, the first fixing member 21 is connected to one end of the second rotation connecting portion 70, the second fixing member 22 is connected to the other end of the second rotation connecting portion 70, the second fixing member 22 is rotatably connected to the second rotation connecting portion 70, spaced from the first fixing member 21 by a certain distance, when the user uses the fan 1, the first fixing member 21 of the fan 1 may be abutted against an external object to be clamped, for example, the first fixing member 21 can be first clamped in front of the computer display screen, then, the second fixing member 22 is abutted against the back of the computer display screen, so that the first fixing member 21 and the second fixing member 22 are abutted against two sides of the external object to clamp and fix the computer display screen together, thereby fixing the fan 1 on the computer display screen. In this embodiment, the second fixing member 22 is rotatably connected to the second rotating connection portion 70, and the distance between one end of the second fixing member 22 and the clamped external object can be changed by rotating the second fixing member 22, so that the external object can be conveniently clamped and fixed or removed from the external object. Through setting up first mounting 21 with second mounting 22 can make fan 1 fixes on external article such as computer, panel, and the user of being convenient for uses, has enlarged fan 1's application range, and user experience is better, simultaneously, first mounting 21 with the centre gripping of second mounting 22 the both sides of external object can increase fan 1 and the fixed stability of external object have ensured fan 1 stability and the security of during operation, and, first mounting 21 with at least one in the second mounting 22 rotate connect in second rotates connecting portion 70, can be through rotating first mounting 21 with at least one in the second mounting 22 is right fan 1 is fixed and is taken, and the user of being convenient for uses, and user experience is better.

Further, the second rotating connecting portion 70 includes a rotating connecting body 72, a first connecting end 73 and a second connecting end 74, the rotating connecting body 72 is connected between the first connecting end 73 and the second connecting end 74, the rotating connecting body 72 includes a first surface 721 near one side of the fan body 1a and a second surface 722 on the opposite side of the first surface 721, the first surface 721 is recessed toward the side away from the fan body 1a to form the arc-shaped recessed portion 71, the second surface 722 is an arc-shaped surface protruding toward the side away from the fan body 1a, and the first connecting end 73 is connected between one end of the rotating connecting body 72 and the first fixing member 21; the second connecting end 74 is connected between the other end of the rotational connecting body 72 and the second fixing member 22. Through setting up first surface 721 is for keeping away from for the orientation fan main part 1a one side is sunken to form the cambered surface depressed part, second surface 722 is for keeping away from for the orientation fan main part 1a one side bellied arc surface, can with fan main part 1a holding is in on the base 1b is inhaled to magnetism, has ensured fan main part 1a with inhale the stability that the base 1b is connected to magnetism, make fan 1 at the during operation, fan main part 1a can not follow inhale the base 1b and drop, has ensured fan 1's security.

Further, the first fixing piece 21 is connected to the first connection end 73 perpendicularly and extends in a direction away from the fan main body 1a, the second connection end 74 also extends in a direction away from the fan main body 1a, and the extending direction of the second connection end 74 is the same as the extending direction of the first fixing piece 21; one side of the first fixing member 21 close to the rotating connecting body 72 is used for abutting against one side of the external object, and the second fixing member 22 comprises an arc-shaped structure protruding towards one side of the first fixing member 21, and the arc-shaped structure is used for abutting against the other side of the external object. It can be understood that one side of the first fixing member 21 close to the rotating connecting body 72 is used for abutting against one side of the external object, the second fixing member 22 is provided with an arc-shaped structure protruding towards one side of the first fixing member 21, and the other side of the external object can form a triangular support with the first fixing member 21 through abutting against the arc-shaped structure, so that the fan 1 is fixed more stably. Through setting up first mounting 21 is connected perpendicularly first link end 73 and extends towards the direction of keeping away from fan main part 1a, one side that first mounting 21 is close to rotate connecting body 72 is used for the butt one side of external object, second mounting 22 includes towards the bellied arc structure of one side of first mounting 21 place, the arc structure is used for the butt opposite side of external object, can make first mounting 21 with second mounting 22 carries out the centre gripping with external object from the front and back two sides of external object, makes fan 1's fixed more firm, stable.

Further, the housing 10 includes an annular first sidewall structure 11, an annular second sidewall structure 12 sleeved on the periphery of the first sidewall structure 11, a connecting portion 13 connected between the first sidewall structure 11 and the second sidewall structure 12, and an extending portion 18 disposed opposite to the connecting portion 13, where the first sidewall structure 11, the second sidewall structure 12, the connecting portion 13, and the extending portion 18 are further configured to enclose the fan receiving cavity 16, an annular air duct 14 communicated with the fan receiving cavity 16, and an air outlet 15 communicated with the annular air duct 14, and the air outlet 15 is an annular air outlet or includes a plurality of sub air outlets annularly arranged corresponding to the annular air duct 14; the first rotating connection portion 19 is disposed on a sidewall portion of the second sidewall structure 12 and is used for enclosing the fan receiving cavity 16, and the fan assembly 30 is used for blowing out wind through the annular air duct 14 and the corresponding air outlet 15. It can be understood that, when the fan assembly 30 accommodated in the housing 10 is in operation, wind can be blown into the annular air duct 14, and then the outlet wind of the fan assembly 30 is blown out from the air outlet 15 by the guiding of the annular air duct 14, so as to achieve the purposes of promoting air circulation and reducing ambient temperature. In this embodiment, the air outlet 15 may be an annular air outlet, and in other embodiments, the air outlet 15 may further include a plurality of sub air outlets corresponding to each annular air duct 14 and arranged in an annular shape, and by providing a plurality of sub air outlets corresponding to each annular air duct 14 and arranged in an annular shape, impurities such as dust and hair may not easily enter the inside of the fan 1 through the air outlet 15, so that the safety of the fan 1 is improved. By arranging an annular first side wall structure 11, an annular second side wall structure 12 sleeved on the periphery of the first side wall structure 11, a connecting portion 13 connected to the first side wall structure 11 and the second side wall structure 12, and an extending portion 18 opposite to the connecting portion 13, the casing 10 of the fan 1 is enclosed, and the fan assembly 30 is accommodated therein, and the first side wall structure 11, the second side wall structure 12, the connecting portion 13, and the extending portion 18 further enclose the fan accommodating chamber 16, an annular air duct 14 communicated with the fan accommodating chamber 16, and an air outlet 15 communicated with the annular air duct 14, the fan assembly 30 can blow out wind through the annular air duct 14 and the corresponding air outlet 15, so as to achieve the purposes of air outlet and temperature reduction, and make a user more comfortable, the fan assembly 30 is wrapped inside the casing 10, make fan 1 is safer when using, and the noise is littleer, and whole fan 1's structure is succinct more, and occupation space is littleer, simultaneously, through annular wind channel 14 reaches annular air outlet 15 blows off wind, makes fan 1's air-out is close natural wind more, and it is more comfortable to make the user feel when using.

Specifically, the housing 10 includes two annular first side wall structures 11 arranged in parallel, and the second side wall structure 12 is sleeved on the peripheries of the two first side wall structures 11, so that the two first side wall structures 11, the second side wall structure 12 and the connecting portion 13 are further used for enclosing a fan accommodating cavity 16 located between the two first side wall structures 11, two annular air ducts 14 with central axes arranged in parallel, and two air outlets 15 respectively communicated with the two annular air ducts 14, and two ends of the fan accommodating cavity 16 are respectively communicated with the two annular air ducts 14; the housing 10 further includes an air inlet 17 communicating with the fan receiving chamber 16; the fan shaft 31 of the fan assembly 30 is parallel to the central axes of the two annular air ducts 14. By arranging two annular first side wall structures 11 which are arranged in parallel, the two first side wall structures 11, the second side wall structures 12 and the connecting part 13 are further used for enclosing a fan accommodating cavity 16 which is arranged between the two first side wall structures 11, two annular air ducts 14 of which the central axes are arranged in parallel and two air outlets 15 which are respectively communicated with the two annular air ducts 14, two ends of the fan accommodating cavity 16 are respectively communicated with the two annular air ducts 14, the air inlet 17 is communicated with the fan accommodating cavity 16, a fan shaft 31 of the fan assembly 30 is parallel to the central axes of the two annular air ducts 14, so that the fan assembly 30 can blow the outlet air into the two annular air ducts 14 simultaneously, the outlet air efficiency of the fan 1 is improved, the outlet air is more balanced, and the comfort of human body is improved, meanwhile, the fan shaft 31 of the fan assembly 30 is arranged to be parallel to the central axes of the two annular air ducts 14, so that the loss of the air outlet of the fan assembly 30 in the annular air ducts 14 can be reduced to the maximum extent, and the air outlet efficiency of the fan 1 is higher.

Further, the extending portion 18 is connected to an end of the second side wall structure 12 away from the connecting portion 13, an end of the extending portion 18 away from the second side wall structure 12 and ends of the two first side wall structures 11 away from the connecting portion 13 respectively enclose two air outlets 15, and the air outlets 15 are slot type air outlets 15 that discharge air towards a side where the connecting portion 13 is located; the two first side wall structures 11 further enclose a hollow air outlet channel 114, and the outlet air of the air outlet 15 is accelerated and converged in the air outlet channel 114 and then blown out from the side where the connecting portion 13 is located. It can be understood that, in this embodiment, an end of the extension portion 18 away from the second sidewall structure 12 and an end of the two first sidewall structures 11 away from the connecting portion 13 respectively enclose two air outlets 15, where the air outlet 15 is a slit-type air outlet 15 that discharges air towards a side of the connecting portion 13, and can perform a function of compressing the discharged air to the maximum extent, and can make the air pressure of a portion of the annular air duct 14 adjacent to the air outlet 15 greater than the air pressure outside the air outlet 15, so as to form a negative pressure that presses the discharged air in the annular air duct 14 towards the air outlet 15, so that the speed of the discharged air is faster, and the efficiency of the fan 1 is improved, meanwhile, in combination with the hollow air outlet channel 114 enclosed by the two first sidewall structures 11, the discharged air of the air outlet 15 is converged and accelerated in the air outlet channel 114, And guiding, so that the air is blown to the side where the user is located from the side where the connecting part 13 is located, and the fan 1 achieves the maximum air outlet efficiency and is cooled rapidly. Through setting up air outlet 15 is towards slot type air outlet 15 of connecting portion 13 place one side air-out, can play the effect that carries out furthest's compression to the air-out, and can make annular wind channel 14 is close to air outlet 15 partial atmospheric pressure is greater than the outside atmospheric pressure of air outlet 15 to form the negative pressure with the air-out pressure in the annular wind channel 14 is to air outlet 15 makes the air-out speed faster, improves fan 1's air-out efficiency, in addition, two first lateral wall structure 11 still encloses into hollow air-out passageway 114, the air-out of air outlet 15 can blow out the back after air-out passageway 114 accelerates to assemble the back and blows out towards one side that connecting portion 13 is located, makes the air-out more accurate, concentrated, thereby reaches rapid cooling's purpose, improves fan 1's air-out efficiency.

Further, the first side wall structure 11 includes a first arc-shaped side wall 123c protruding toward the inner side, the second side wall structure 12 includes a second arc-shaped side wall 113 protruding toward the side away from the first side wall structure 11, and the distance between the first arc-shaped side wall 123c and the second arc-shaped side wall 113 gradually increases and decreases along the direction from the connecting portion 13 to the extending portion 18; the outer surface of the second arc-shaped sidewall 113 away from the second sidewall structure 12 is an arc-shaped surface protruding towards the inner side, and is used for guiding the wind of the wind outlet 15 towards the side where the connecting portion 13 is located. It can be understood that, in this embodiment, the first sidewall structure 11 includes a first arc-shaped sidewall 123c protruding toward the inside, the second sidewall structure 12 includes a second arc-shaped sidewall 113 protruding toward the side away from the first sidewall structure 11, and the distance between the first arc-shaped sidewall 123c and the second arc-shaped sidewall 113 gradually increases and then decreases along the direction from the connecting portion 13 to the extending portion 18, so as to maximize the volume of the annular air duct 14, and meanwhile, an arc-shaped surface protruding toward the inside in combination with the outer surface of the second arc-shaped sidewall 113 away from the second sidewall structure 12 can form a certain slope at the air outlet 15, so as to guide the air outlet of the air outlet 15 under the effect of inertia, and in combination with the air outlet 15 with a strip-shaped gap and the hollow air outlet channel 114, the air outlet of the air outlet 15 can be accelerated after being compressed and discharged, and the air outlet rushes down the arc surface along the original direction under the action of inertia to drive the air near the arc surface to rush down together, so that the boosting effect like a waterfall is formed, and the air outlet efficiency of the fan 1 is improved. Through the arrangement that the first side wall structure 11 comprises the first arc-shaped side wall 123c protruding towards the inner side, the second side wall structure 12 comprises the second arc-shaped side wall 113 protruding towards one side far away from the first side wall structure 11, and the distance between the first arc-shaped side wall 123c and the second arc-shaped side wall 113 gradually increases and decreases along the direction from the connecting part 13 to the extending part 18, so that the volume of the annular air duct 14 can be increased, the air outlet 15 has the effect of compressing and accelerating the blowing-out of the outlet air, the outlet air of the air outlet 15 is blown out faster, and the effect of cooling can be achieved, in addition, the outer surface of the second arc-shaped side wall 113 far away from the second side wall structure 12 is an arc-shaped surface protruding towards the inner side and used for guiding the air of the air outlet 15 towards the side where the connecting part 13 is located, the outlet air of the air outlet 15 is discharged in a compressing manner, the arc surface is rushed down along the original direction under the inertia effect, the wind near the arc surface is driven to rush down together, the boosting effect like a waterfall is formed, and the air outlet efficiency of the fan 1 is improved.

Further, the first side wall structure 11 includes a first annular edge 111 and a second annular edge 112 that are disposed opposite to each other, the second side wall structure 12 includes a third annular edge 121 and a fourth annular edge 122 that are disposed opposite to each other, the extending portion 18 is connected to the fourth annular edge 122, a portion of the extending portion 18 away from the fourth annular edge 122 and the second annular edges 112 of the two first side wall structures 11 respectively enclose the two air outlets 15, and the air inlet 17 is located on the second side wall structure 12, the connecting portion 13, or the extending portion 18. Through setting up with connecting portion 13 sets up relatively extension 18, just extension 18 is kept away from fourth annular edge 122's part and two second annular edge 112 of first side wall structure 11 encloses into two respectively air outlet 15 makes air outlet 15 with annular wind channel 14's distance is shorter, reduces the loss of air-out in-process, just extension 18 and two first side wall structure 11 encloses into two air outlet 15 can make fan 1's overall structure is succinct more, occupation space is littleer, makes fan 1 portable, accomodate, and application scope is wider.

Further, the connecting portion 13 includes a first connecting portion 131 connecting between the first annular edge 111 and the third annular edge 121, a second connecting portion 132 connecting between the two first annular edges 111 of the two first sidewall structures 11 and connecting the third annular edge 121, the second connecting portion 132 includes a first main body portion 132a, a first edge portion 132b and a second edge portion 132c, the first edge portion 132b is connected between the first main body portion 132a and one of the first sidewall structures 11, the second edge portion 132c is connected between the first main body portion 132a and the other of the first sidewall structures 11, the first main body portion 132a is further connected to the third annular edge 121, the extending portion 18 includes a first extending portion 181 disposed opposite to the first connecting portion 131 and a second extending portion 182 disposed opposite to the second connecting portion 132, the second extension 182 includes a second body portion 182a, a third edge portion 182b and a fourth edge portion 182c, the second edge portion 132c is connected between the second body portion 182a and one end of the fourth annular rim 122 and is opposite to the first edge portion 132b, the fourth edge portion 182c is connected between the second body portion 182a and the other end of the fourth annular rim 122 and is opposite to the second edge portion 132c, the second body portion 182a is further connected to the fourth annular rim 122, the air inlet 17 is located on the second body portion 182a, the first body portion 132a, the second sidewall structure 12 connected to the first body portion 132a, the second body portion 182a enclose the fan receiving cavity 16, the first edge portion 132b, the first connecting portion 131 b, The first side wall structure 11, the second side wall structure 12 and the third edge portion 182b enclose one annular air duct 14, and the second edge portion 132c, the second connecting portion 132, the first side wall structure 11, the second side wall structure 12 and the fourth edge portion 182c enclose another annular air duct 14. By disposing the first connecting portion 131 and the first extending portion 181 oppositely, disposing the second connecting portion 132 and the second extending portion 182 oppositely, and disposing the air inlet 17 on the second main body portion 182a, the first main body portion 132a, the second side wall structure 12 connected to the first main body portion 132a, and the second main body portion 182a enclose the fan receiving chamber 16, the first edge portion 132b, the first connecting portion 131, the first side wall structure 11, the second side wall structure 12, and the third edge portion 182b enclose one of the annular air ducts 14, the second edge portion 132c, the second connecting portion 132, the first side wall structure 11, the second side wall structure 12, and the fourth edge portion 182c enclose another of the annular air duct 14, the structure of the fan 1 is concise, the balance is improved, the air outlet of the fan 1 is more balanced, the air outlet efficiency of the fan 1 is improved, and the service life of the fan 1 is prolonged.

Further, the extension portion 18 extends toward the side where the connecting portion 13 is located and is at least partially located at the periphery of the second annular edge 112 of the first sidewall structure 11, and the extension portion 18 and the first sidewall structure 11 enclose the air outlet 15 blowing air toward the side where the connecting portion 13 is located; the second side wall structure 12 comprises a first side wall part 123, a second side wall part 124, a third side wall part 125 and a fourth side wall part 126 which are sequentially connected in a surrounding manner, wherein the first side wall part 123 and the third side wall part 125 are oppositely arranged; each of the first and third side wall portions 123 and 125 has two first portions 123a oppositely disposed in a length direction and a second portion 123b connected between the two first portions 123a, the first portions 123a are connected between the corresponding first connecting portions 131 and the corresponding first extending portions 181, the second portions 123b are connected between the second connecting portions 132 and the second extending portions 182, and the first rotation connecting portion 19 is disposed on the first side wall portion 123. By arranging the extension portion 18 extending towards one side of the connecting portion 13 and at least partially located at the periphery of the second annular edge 112 of the first sidewall structure 11, the extension portion 18 and the first sidewall structure 11 can enclose the air outlet 15 blowing air towards one side of the connecting portion 13, so that the air outlet is more accurate and concentrated, the purpose of rapidly cooling is achieved, and the air outlet efficiency of the fan 1 is improved.

Further, the second portion 123b of at least one of the first and third sidewall portions 123 and 125 is a third arc-shaped sidewall 123d protruding towards the outside away from the first sidewall structure 11, so that the shape of the fan receiving cavity 16 is adapted to the outer contour of the fan assembly 30. In this embodiment, the second portions 123b of the first and third sidewall portions 123 and 125 are both third arc-shaped sidewalls 123d protruding toward the outer sides away from the first sidewall structure 11, so that the second portions 123b of the first and third sidewall portions 123 and 125 can form the shape of the fan receiving cavity 16 matching with the outer contour of the fan assembly 30, and the air inlet and outlet of the fan assembly 30 during operation are smoother and more uniform. Through setting up with the third arc lateral wall 123d of fan assembly 30's outline adaptation, can make fan assembly 30 can have suitable accommodation space, be convenient for fan assembly 30 works, improves fan 1's air-out efficiency.

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 (17)

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

the fan comprises a fan body, a fan cover and a fan cover, wherein the fan body comprises a shell with a fan containing cavity, a fan assembly positioned in the fan containing cavity and a first magnetic piece arranged on the shell;

the base is inhaled to magnetism, have the base main part with set up in the second magnetism spare of base main part, the second magnetism spare be used for with first magnetism spare magnetism is connected, so that the base is inhaled to magnetism with the magnetism that realizes having two at least different relative positions between the fan main part can be dismantled and be connected, thereby the adjustment the air-out direction of fan main part.

2. The fan as claimed in claim 1, wherein the second magnetic member is configured to magnetically couple with the first magnetic member, such that the magnetic base is rotatable about at least one axial direction relative to the fan body to magnetically detachably couple with the fan body at a plurality of different relative positions, thereby adjusting the air outlet direction of the fan body.

3. The fan as claimed in claim 2, wherein the housing has a first rotation connection portion, the magnetically attractive base has a fixing member for fixing the magnetically attractive base to an external object and a second rotation connection portion connected to the fixing member,

the first magnetic part is arranged on the first rotating connecting part, the second magnetic part is arranged on the second rotating connecting part or the second rotating connecting part is a second magnetic part, the second rotating connecting part is magnetically connected with the first rotating connecting part and can rotate relative to the first rotating connecting part, so that the air outlet direction of the fan main body is adjusted,

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.

4. The fan as claimed in claim 3,

the first rotating connecting part comprises an arc-shaped protruding part protruding towards the magnetic suction base, and the second rotating connecting part comprises an arc-shaped concave part which is used for accommodating the arc-shaped protruding part and is in rotating fit with the arc-shaped protruding part; or

First rotation connecting portion include the orientation the sunken cambered surface depressed part of base is inhaled to magnetism, the second rotate connecting portion including accomodate in cambered surface depressed part and in cambered surface depressed part normal running fit's cambered surface bellying.

5. The fan of claim 4, wherein the cambered surface convex part is a spherical convex part, the cambered surface concave part is a spherical concave part, and the spherical convex part rotates in the spherical concave part, so that the magnetic suction base can rotate relative to the fan body around a plurality of different axial directions, and the air outlet direction of the fan body is adjusted.

6. The fan as claimed in claim 4, wherein the fixing member includes a first fixing member and a second fixing member, the first fixing member is connected to one end of the second rotation connecting portion, the second fixing member is connected to the other end of the second rotation connecting portion, and the first fixing member and the second fixing member are used to abut against both sides of the external object; at least one of the first fixing member and the second fixing member is rotatably coupled to the second rotation coupling portion.

7. The fan as claimed in claim 6, wherein the second rotation connecting portion includes a rotation connecting body connected between the first connecting end and the second connecting end, a first connecting end and a second connecting end, the rotation connecting body includes a first surface adjacent to a side of the fan body and a second surface opposite to the first surface, the first surface is recessed toward a side away from the fan body to form the arc-shaped recessed portion, the second surface is an arc-shaped surface that is raised toward a side away from the fan body,

the first connecting end is connected between one end of the rotating connecting main body and the first fixing piece;

the second connecting end is connected between the other end of the rotary connecting body and the second fixing piece.

8. The fan as claimed in claim 6, wherein the first fixing member perpendicularly connects the first connection end and extends in a direction away from the fan body, the second connection end also extends in a direction away from the fan body, and the second connection end extends in the same direction as the first fixing member; the first fixing piece is close to one side of the rotary connecting main body and used for being abutted to one side of the external object, the second fixing piece comprises an arc-shaped structure protruding towards one side where the first fixing piece is located, and the arc-shaped structure is used for being abutted to the other side of the external object.

9. The fan according to claim 3, wherein the housing includes an annular first sidewall structure, an annular second sidewall structure sleeved on a periphery of the first sidewall structure, a connecting portion connected between the first sidewall structure and the second sidewall structure, and an extending portion disposed opposite to the connecting portion, the first sidewall structure, the second sidewall structure, the connecting portion, and the extending portion are further configured to enclose the fan receiving cavity, an annular air duct communicated with the fan receiving cavity, and an air outlet communicated with the annular air duct, and the air outlet is an annular air outlet or includes a plurality of sub air outlets annularly arranged corresponding to the annular air duct; the first rotating connecting portion is arranged on one side wall portion of the second side wall structure and used for enclosing the fan accommodating cavity, and the fan assembly is used for blowing out wind through the annular air duct and the corresponding air outlet.

10. The fan as claimed in claim 9, wherein the housing includes two juxtaposed annular first sidewall structures, and the second sidewall structure is disposed around the two first sidewall structures, such that the two first sidewall structures, the second sidewall structure and the connecting portion further enclose the fan receiving cavity between the two first sidewall structures, the two annular air ducts with their central axes juxtaposed, and the two air outlets respectively communicating with the two annular air ducts, and both ends of the fan receiving cavity are respectively communicated with the two annular air ducts; the shell further comprises an air inlet communicated with the fan accommodating cavity; the fan shaft of the fan assembly is parallel to the central axes of the two annular air channels.

11. The fan as claimed in claim 10, wherein the extension portion is connected to an end of the second sidewall structure away from the connecting portion, and the end of the extension portion away from the second sidewall structure and ends of the two first sidewall structures away from the connecting portion respectively enclose two of the air outlets, which are slit-type air outlets facing the side where the connecting portion is located; the two first side wall structures further enclose a hollow air outlet channel, and air outlet of the air outlet is blown out from one side of the connecting portion after accelerated convergence of the air outlet channel.

12. The fan as claimed in claim 11, wherein the first sidewall structure includes a first arc-shaped sidewall protruding toward an inner side, the second sidewall structure includes a second arc-shaped sidewall protruding toward a side away from the first sidewall structure, and a distance between the first arc-shaped sidewall and the second arc-shaped sidewall gradually increases and decreases in a direction from the connection portion to the extension portion; the outer surface of the second arc-shaped side wall, which is far away from the second side wall structure, is an arc-shaped surface protruding towards the inner side and used for guiding the wind of the air outlet towards one side where the connecting part is located.

13. The fan as recited in claim 10, wherein said first sidewall structure includes first and second oppositely disposed annular edges, said second sidewall structure includes third and fourth oppositely disposed annular edges,

the extension part is connected with the fourth annular edge, two air outlets are respectively enclosed by the part of the extension part, which is far away from the fourth annular edge, and the second annular edges of the two first side wall structures, and the air inlet is positioned on the second side wall structure, the connecting part or the extension part.

14. The fan as claimed in claim 13,

the connecting portion includes a first connecting portion connecting between the first annular rim and the third annular rim, a second connecting portion connecting between the two first annular rims of the two first sidewall structures and connecting the third annular rim,

the second connecting portion including a first body portion, a first edge portion connected between the first body portion and one of the first sidewall structures, and a second edge portion connected between the first body portion and the other of the first sidewall structures, the first body portion further connecting the third annular edge,

the extension part comprises a first extension part arranged opposite to the first connecting part and a second extension part arranged opposite to the second connecting part,

the second extension including a second body portion, a third edge portion and a fourth edge portion, the second edge portion connected between the second body portion and one end of the fourth annular rim and opposite the first edge portion, the fourth edge portion connected between the second body portion and the other end of the fourth annular rim and opposite the second edge portion, the second body portion further connected to the fourth annular rim,

the air inlet is positioned on the second main body part,

the first body portion, the second side wall structure connected to the first body portion, the second body portion enclose the fan receiving cavity, the first edge portion, the first connecting portion, the first side wall structure, the second side wall structure, the third edge portion enclose one of the annular air ducts, and the second edge portion, the second connecting portion, the first side wall structure, the second side wall structure, the fourth edge portion enclose another of the annular air ducts.

15. The fan as claimed in claim 14, wherein the extension portion extends toward a side where the connecting portion is located and is at least partially located at a periphery of the second annular edge of the first sidewall structure, and the extension portion and the first sidewall structure enclose the air outlet blowing air toward the side where the connecting portion is located; the second side wall structure comprises a first side wall part, a second side wall part, a third side wall part and a fourth side wall part which are sequentially connected in an encircling manner, and the first side wall part and the third side wall part are oppositely arranged; the first side wall portion and the third side wall portion are provided with two first portions which are oppositely arranged along the length direction and a second portion which is connected between the two first portions, the first portions are connected between the corresponding first connecting portions and the corresponding first extending portions, the second portion is connected between the second connecting portions and the second extending portions, and the first rotating connecting portions are arranged on the first side wall portions.

16. The fan as claimed in claim 14, wherein the second portion of at least one of the first and third sidewall portions is a third arcuate sidewall that projects toward an outer side away from the first sidewall structure such that the shape of the fan receiving cavity is adapted to an outer contour of the fan assembly.

17. The utility model provides a base is inhaled to magnetism for fan which characterized in that has the base main part with set up in the second magnetism spare of base main part, second magnetism spare be used for with the first magnetism spare magnetism of fan main part be connected, so that the base is inhaled to magnetism with the magnetism that realizes having two at least different relative positions between the fan main part can be dismantled and is connected, thereby the adjustment the air-out direction of fan main part.

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