CN214404042U

CN214404042U - Portable fan

Info

Publication number: CN214404042U
Application number: CN202023233569.2U
Authority: CN
Inventors: 杨广; 王永炯; 岳晓锋
Original assignee: Shenzhen Ranvoo Technology Co Ltd
Current assignee: Shenzhen Ranvoo Technology Co Ltd
Priority date: 2020-12-28
Filing date: 2020-12-28
Publication date: 2021-10-15
Anticipated expiration: 2030-12-28

Abstract

The utility model provides a portable fan, including wholly being long banding body, the body includes the main part, be equipped with in the main part and accept chamber and installation cavity, accept the chamber with the installation cavity is followed the length direction of main part is separated and is arranged, it is equipped with the fan wheel to accept the intracavity, be equipped with in the installation cavity with the motor that the fan wheel drive is connected, the motor with it is equipped with the cushion to accept between the lateral wall in chamber, can be used to reduce motor vibrations, noise reduction promotes the product quality.

Description

Portable fan

Technical Field

The utility model relates to the technical field of daily necessities, in particular to portable fan.

Background

In hot summer, electric fans, air conditioners and the like are cooling equipment which are most commonly used by people, but the cooling equipment can only be used indoors and cannot be carried about, when people go out or have an open rest, the people can only cool themselves by using fans or natural wind, but the people do not have the natural wind many times and are tired by using the fans. In view of the situation, various portable fans are available on the market, but the existing portable fans are worn on the human body, and in some scenes, for example, when people use computers or watch television, the portable fans are worn on the human body to cause inconvenience.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a portable fan capable of being hung on a display screen.

The utility model provides a portable fan, including wholly being long banding body, the body includes the main part, be equipped with in the main part and accept chamber and installation cavity, accept the chamber with the installation cavity is followed the length direction of main part is separated and is arranged, it is equipped with the fan wheel to accept the intracavity, be equipped with in the installation cavity with the motor that the fan wheel drive is connected, the motor with it is equipped with the cushion to accept between the lateral wall in chamber.

In an embodiment, the soft rubber pad is located between an end surface of the motor facing the fan wheel and a side wall of the accommodating cavity.

In an embodiment, the body further comprises an air outlet portion which extends forwards relative to the main body portion and is communicated with the main body portion, an air outlet is arranged on the front surface of the air outlet portion, an air duct which is communicated with the air outlet and the accommodating cavity is formed in the air outlet portion, air generated by the operation of the fan wheel is blown out from the air outlet through the air duct, and a hook member is arranged below the air outlet portion.

In an embodiment, the hooking member comprises a first telescopic member and a hook, a mounting groove is formed in the bottom of the air outlet portion, the first telescopic member is arranged in the mounting groove in a front-back sliding mode, the hook is connected to the front end of the first telescopic member, and an elastic member is connected between the mounting groove and the first telescopic member or between the mounting groove and the hook, so that after the hook and the first telescopic member are pulled out forwards, the elastic member can provide elastic bias for resetting the hook.

In an embodiment, the hooking member further includes a second extensible member, the second extensible member is slidably disposed in the mounting groove back and forth, the second extensible member has a second receiving groove, the first extensible member is slidably coupled in the second receiving groove, and after the hook, the first extensible member and/or the second extensible member are pulled out forward, the elastic member can provide an elastic bias for resetting the hook.

In one embodiment, one of the second telescopic piece and the mounting groove is provided with a sliding block, the other one of the second telescopic piece and the mounting groove is provided with a sliding groove, and the sliding block is in sliding fit with the sliding groove;

a first stop block and a second stop block which are matched with each other in a blocking mode are arranged between the first telescopic piece and the second accommodating groove, so that when the first telescopic piece slides forwards relative to the second telescopic piece to a limit distance, the second stop block blocks the first stop block to prevent the first telescopic piece from sliding forwards out of the second accommodating groove.

In one embodiment, the air outlet part is positioned on the top side of the front end of the main body part, a connecting seat is arranged between the bottom of the main body part and the bottom of the air outlet part, the mounting groove is formed at the front end of the connecting seat, and a supporting piece is rotatably connected to the rear end of the connecting seat, so that the supporting piece can rotate back and forth relative to the connecting seat;

support piece with the rear end of connecting seat is passed through the pivot and is connected, pivot one end is equipped with the screw thread, and the other end is equipped with the nut, the rear end interval of connecting seat is equipped with two first pivot portions, one of them be equipped with on the first pivot portion with the mounting hole of nut adaptation, another be equipped with the confession on the first pivot portion the pivot is equipped with the trompil that the screwed one end was worn to establish, support piece's top is equipped with second pivot portion, second pivot portion is equipped with the shaft hole, second pivot portion stretches into two realize rotating the connection between the first pivot portion and utilizing the pivot, it is equipped with the piece that resets still to overlap on the pivot, it is right to reset the piece and applys the elastic bias who makes its forward rotation.

In an embodiment, an air guide member for adjusting an air outlet direction is rotatably arranged in the air outlet, and a silica gel sheet is arranged at a rotary connection position of the air guide member and the side wall of the air outlet.

In an embodiment, both sides in the main part are equipped with the baffle respectively, two the baffle will cavity in the main part is separated into accept the chamber and is located accept the chamber both sides installation cavity and holding chamber, the installation cavity with the holding chamber outside is covered respectively and is equipped with the end cover, portable fan still include the circuit board and with the keypad that the circuit board electricity is connected, the circuit board with the keypad sets up the holding intracavity, be equipped with switch button and power source on the body, switch button with the keypad is connected and is used for control opening of motor stops, power source with the circuit board electricity is connected and is used for connecting external power source.

In one embodiment, the bottom of the accommodating cavity is further provided with a wire passing groove, and a wire connected with the motor is fixed in the wire passing groove.

To sum up, the utility model provides a portable fan can install and establish at electronic equipment's display screen top and use for the cooling of blowing for the user before the screen. The portable fan is designed into a strip shape as a whole, and the air outlet range can be enlarged. Set up in the main part along main part length direction partition arrange accept chamber and installation cavity, accept the intracavity and set up the impeller, set up the motor of being connected with the impeller drive in the installation cavity, set up soft cushion between the lateral wall in motor and accepting the chamber, can be used to reduce motor vibrations, noise reduction promotes the product quality. The utility model discloses a portable fan noise is little, simple structure, and convenient operation hangs and holds the structure firm, and portable, and the user can hang portable fan as required at any time and hold on the display screen or take off, offers convenience for the user.

Drawings

Fig. 1 is a perspective view of the portable fan of the present invention.

Fig. 2 is an exploded view of the portable fan of fig. 1.

Fig. 3 is another exploded view of the portable fan of fig. 1.

Fig. 4 is a cross-sectional schematic view of the portable fan of fig. 1.

Fig. 5 is a perspective cross-sectional view of the portable fan of fig. 1.

Detailed Description

Before the embodiments are described in detail, it is to be understood that the invention is not limited in its application to the details of construction and the arrangements of components set forth in the following description or illustrated in the drawings. The utility model discloses can be the embodiment that other modes realized. Also, it is to be understood that the phraseology and terminology used herein is for the purpose of description and should not be regarded as limiting. The use of "including," "comprising," "having," and the like, herein is meant to encompass the items listed thereafter and equivalents thereof as well as additional items. In particular, when "a certain element" is described, the present invention is not limited to the number of the element being one, and may include a plurality of the elements.

As shown in fig. 1-5, the present invention provides a portable fan 10, which can be installed on the top of a display screen of an electronic device, such as a computer or a television, to blow air for cooling a user in front of the display screen. This portable fan 10 includes body 12 and locates the fan in body 12, and body 12 is whole to be rectangular form, so can make the air outlet also be rectangular shape, increase the air-out scope.

The main body 12 includes a main body 14 and an air outlet 16 extending forward from the main body 14 and communicating with the main body 14. Preferably, the air outlet portion 16 and the main body portion 14 are both long, and the air outlet portion 16 is located on the top side of the front end of the main body portion 14, please refer to fig. 4, and the two are connected in a shape similar to a whistle when viewed from the side. The fan is arranged in the main body part 14, specifically, the fan comprises a fan wheel 18 and a motor 20, the fan wheel 18 is cylindrical, and the motor 20 is in driving connection with the fan wheel 18 to drive the fan wheel 18 to rotate. Be equipped with in the main part 14 and accept chamber 22 and installation cavity 24, fan wheel 18 sets up in accepting chamber 22, and motor 20 sets up in installation cavity 24, is equipped with soft cushion 26 between the lateral wall of motor 20 and accepting chamber 22, can reduce the vibrations of motor 20, and then reduce the noise. Preferably, the distance between the front side and the rear side of the impeller 18 and the accommodating cavity 22 is smaller than the distance between the upper side and the lower side of the impeller 18 and the accommodating cavity 22, so that air can be smoothly discharged when the impeller 18 rotates, and the air discharging noise is reduced.

Preferably, the housing cavity 22 and the mounting cavity 24 are spaced apart along the length of the body portion 14, and the soft rubber pad 26 is located between the end surface of the motor 20 facing the fan wheel 18 and the side wall of the housing cavity 22. In the illustrated embodiment, the main body 14 is provided with two partition plates 28 at two ends, the two partition plates 28 divide the cavity of the main body 14 into a receiving cavity 22 and a mounting cavity 24 and a receiving cavity 30 respectively located at two sides of the receiving cavity 22, the mounting cavity 24 and the receiving cavity 30 are respectively covered with end caps 32 at the outer sides, and the end caps 32 are fixed at two ends of the main body 14 by, for example, a snap fit or a screw fixation. A soft rubber pad 26 is disposed between the motor 20 and a partition 28 of the housing chamber 22 on a side thereof adjacent to the motor 20.

In the illustrated embodiment, a driving hole is formed at an end of the fan wheel 18 close to the motor 20, a driving shaft of the motor 20 passes through the corresponding partition 28 and is connected to the driving hole in a driving manner, a rotating shaft is formed at an end of the fan wheel 18 far from the motor 20, and a shaft hole is formed in the corresponding partition 28 and is rotatably connected to the shaft hole, so that the fan wheel 18 can be driven by the motor 20 to rotate in the accommodating cavity 22 to generate wind.

An air outlet 34 is arranged on the front surface of the air outlet part 16, an air duct 36 communicating the air outlet 34 and the accommodating cavity 22 is formed in the air outlet part 16, and air generated by the operation of the fan wheel 18 is blown out of the air outlet 34 through the air duct 36. The body 12 is provided with an air inlet 38 corresponding to the impeller 18 for the impeller 18 to suck air, and the air inlet 38 may be provided at the bottom of the main body 14 corresponding to the impeller 18. Preferably, the air guide member 40 is rotatably disposed in the air outlet 34, the air guide member 40 is shaped like a long strip corresponding to the air outlet 34, and the blades of the air guide member 40 are transversely disposed, so that the air guide member 40 can rotate up and down, and a user can adjust the air outlet direction by pulling the air guide member 40. Specifically, the two ends of the air guide 40 are respectively provided with a rotating shaft, the two opposite side walls of the air outlet 34 are correspondingly provided with shaft holes, the rotating shafts are rotatably connected in the shaft holes, and a silica gel sheet 42 is further arranged at the rotating connection position of the rotating shafts and the side walls of the air outlet 34 and used for increasing the rotating damping of the air guide 40 and avoiding the rotation of the air guide 40 under the condition of non-external force.

The portable fan 10 further includes a circuit board 44 and a key sheet 46, and the circuit board 44 and the key sheet 46 are disposed in the accommodating cavity 30. The body 12 is further provided with a switch button for user operation, a button plate 46 electrically connected to the circuit board 44, and a power interface 50, wherein the switch button is connected to the button plate 46 for controlling the start and stop of the motor 20, and the switch button is disposed on an end surface of the air outlet portion 16, for example. Preferably, since the portable fan 10 is hung on the display screen, the switch keys may be touch keys, and the user can trigger the switch keys by slightly touching the switch keys, which is convenient for operation. A power interface 50 is electrically connected to the circuit board 44, the power interface 50 being disposed, for example, on the rear side of the main body portion 14, and the power interface 50 being used to connect an external power source, for example, via a data cable to a display screen or an electronic device interface to which the display screen is connected, to supply power to the portable fan 10.

In some embodiments, a battery may also be disposed within the body 12, such that the portable fan 10 may be self-powered, and may also be connected to an external power source via the power interface 50 to recharge the battery.

Preferably, the bottom of the accommodating cavity 22 is provided with a wire passing groove 52 extending along the length direction of the main body portion 14, the motor 20 is electrically connected with the circuit board 44, and a lead connecting the motor 20 and the circuit board 44 can be fixed in the wire passing groove 52 to avoid wire body winding.

A hooking member 54 is provided below the air outlet portion 16, and the hooking member 54 can be used to hook on the front surface of the display screen, so that the portable fan 10 can be fixed on the top of the display screen. In the illustrated embodiment, the body 12 is further connected to a support member 56, and the support member 56 and the hook member 54 are spaced forward and backward and can be used to clamp or support on the rear surface of the display screen to increase the fixing stability of the portable fan 10. Preferably, the support member 56 is rotatably coupled to the body 12 such that the support member 56 can rotate back and forth relative to the connection base 58 to facilitate the user to remove or install the portable fan 10 from the display screen.

In the illustrated embodiment, the hook member 54 is located below the air outlet portion 16 and protrudes to the front of the air outlet portion 16, such that when the portable fan 10 is hooked on the top of the display screen, the main body 14 is located behind the display screen, and the air outlet portion 16 is located above the display screen and does not protrude beyond the front surface of the display screen to block the screen. Preferably, the support member 56 is rotatably connected below the body portion 14.

Further, a connecting seat 58 is arranged between the bottom of the main body portion 14 and the bottom of the air outlet portion 16, the connecting seat 58 includes two parts, one of the two parts is located at the bottom of the main body portion 14, the other part is located at the bottom of the air outlet portion 16, the two parts can be connected in a split manner or integrally formed, and the connecting seat 58 can also be integrally formed with the body 12. The bottom surface of the connecting base 58 is at least partially an arc surface, which can be used to match with the arc rear surface of the display screen, further enhancing the fixing stability of the portable fan 10. In the illustrated embodiment, an arc is formed on a portion of the connection holder 58 located at the bottom of the main body 14, and the arc is designed to enable stable fixing even when the portable fan 10 is fixed to the display screen only by the hook 54. The hook member 54 is connected to a front end of the connecting section 58, and the support member 56 is rotatably connected to a rear end of the connecting section 58.

The air inlet 38 is distributed in the bottom area of the main body 14, and the arc surface at the bottom of the connecting seat 58 is provided with a plurality of through holes 60 corresponding to the air inlet 38, so that influence on air inlet caused by the arrangement of the connecting seat 58 is avoided. In the illustrated embodiment, the air inlet 38 includes a plurality of air inlet holes spaced along the length of the main body 14, and the air inlet holes and the through holes 60 are strip-shaped holes extending along the circumference of the main body 14 to adapt to the shape of the impeller 18, thereby enhancing the air inlet efficiency.

In the illustrated embodiment, the hook member 54 includes a first telescopic member 62, a second telescopic member 64 and a hook 66, the bottom of the air outlet portion 16 is provided with a mounting groove 68, the mounting groove 68 is formed at the front end of the connecting seat 58, the second telescopic member 64 is slidably disposed in the mounting groove 68 in the front-back direction, the front end of the second telescopic member 64 is provided with a second receiving groove 70, and the first telescopic member 62 is slidably coupled in the second receiving groove 70 in the front-back direction. The front end of the first telescopic member 62 is provided with a first receiving groove 72, the rear end of the hook 66 is provided with a fixing portion 74, and the fixing portion 74 is fixed in the first receiving groove 72, for example, the fixing portion 74 is fixedly connected with the first telescopic member 62 through a screw, so that the hook 66 is fixedly connected to the front end of the first telescopic member 62.

An elastic member, such as a spring, is connected between the mounting groove 68 and the fixing portion 74 or the first extensible member 62, so that the elastic member can provide an elastic bias for resetting the hook 66, the first extensible member 62 and/or the second extensible member 64 after being pulled out forward, and the elastic bias can also provide a clamping pre-tightening force when the hook 66 is hooked on the display screen, so that the hooking is firmer. Preferably, two elastic members are provided, and are respectively connected to both sides of the fixing portion 74 or the first extensible member 62, so as to provide uniform and stable pulling force. Specifically, in this embodiment, the two ends of the fixing portion 74 are respectively provided with a first fixing column, two second fixing columns are correspondingly arranged in the mounting groove 68, one end of the elastic member is fixed on the first fixing column, and the other end of the elastic member is fixed on the second fixing column. Of course, in other embodiments, hook 66 may be integrally or fixedly attached to the front end of first telescoping member 62.

The second telescoping member 64 is slidably disposed within the mounting slot 68. in the illustrated embodiment, the second telescoping member 64 has a slider 78 disposed on an outer surface of each of the opposing sidewalls of the mounting slot 68, and a slide slot 80 disposed on an inner surface of each of the opposing sidewalls of the mounting slot 68. the slider 78 is slidably engaged with the slide slot 80 such that the second telescoping member 64 is slidably disposed within the mounting slot 68. In other embodiments, the mounting positions of the sliding block 78 and the sliding groove 80 can be interchanged, or the second telescopic member 64 and the mounting groove 68 can be connected through other sliding structures.

In order to prevent the first telescopic member 62 from sliding out of the second receiving slot 70, in the illustrated embodiment, a first stop 82 and a second stop 84 are disposed between the first telescopic member 62 and the second receiving slot 70, wherein the first stop 82 and the second stop 84 are in stop fit with each other, for example, the first stop 82 is disposed at a rear end of an outer surface of two opposite side walls of the first telescopic member 62, and the second stop 84 is disposed at a front end of two opposite side walls of the second receiving slot 70, such that when the first telescopic member 62 slides forward relative to the second telescopic member 64 to a limit distance, the second stop 84 stops the first stop 82 to prevent the first telescopic member 62 from sliding forward out of the second receiving slot 70.

The hook 66 is connected with the connecting seat 58 through a telescopic structure, so that the hook 66 can be stretched back and forth relative to the body 12 to adapt to display screens with different thicknesses, and the portable fan 10 can be conveniently taken down from the top of the display screen and installed.

In other embodiments, only one telescopic member or more than two telescopic members may be disposed between the hook 66 and the body 12, as long as the hook 66 can be telescopic back and forth relative to the body 12. For example, when an expansion member is provided, the hooking member 54 includes a first expansion member 62 and a hook 66, a mounting groove 68 is provided at the bottom of the air outlet portion 16, the first expansion member 62 is slidably disposed in the mounting groove 68, the hook 66 is connected to the front end of the first expansion member 62, and an elastic member is connected between the mounting groove 68 and the first expansion member 62 or the hook 66, so that the elastic member can provide an elastic bias for resetting the hook 66 and the first expansion member 62 after being pulled out forward.

In the embodiment where the hook member 54 includes the first telescopic member 62, the second telescopic member 64 and the hook 66, the first telescopic member 62 is slidably disposed in the second receiving groove 70 of the second telescopic member 64, and the second telescopic member 64 is slidably disposed in the mounting groove 68, so that the first telescopic member 62 is slidably connected in the mounting groove 68.

The supporting member 56 is rotatably connected to a rear end of the connecting base 58, and the supporting member 56 is engaged with the hooking member 54 for clamping or supporting on a rear surface of the display screen. Specifically, the supporting member 56 is rotatably connected to the rear end of the connecting base 58 by a pivot shaft 86, and the pivot shaft 86 has a screw 87 at one end and a nut 89 at the other end. Two first pivot parts are arranged at the rear end of the connecting seat 58 at intervals, wherein a mounting hole matched with a nut is arranged on one first pivot part, an opening 91 for the end of the pivot 86 provided with the thread 87 to penetrate is arranged on the other first pivot part, and preferably, the inner wall of the opening 97 is provided with grains matched with the thread 87. The top end of the supporting member 56 is provided with a second pivot portion, the second pivot portion is provided with a shaft hole 93, when the supporting member is installed, the second pivot portion extends into between the two first pivot portions, the pivot shaft 86 sequentially passes through the installation hole and the shaft hole 93, and then the nut 89 is screwed to enable the threaded end of the pivot shaft 86 to be in threaded connection with the opening 91, so that the supporting member 56 can rotate back and forth relative to the pivot shaft 86. In other embodiments, the opening 97 may not have a texture corresponding to the thread 87, and the end of the pivot 86 having the thread 87 passes through the mounting hole, the shaft hole 93 and the opening 91 in sequence, and then is screwed to the thread 87 of the pivot 86 by a nut, thereby fixing the pivot 86.

Preferably, the pivot shaft 86 is further sleeved with a restoring member 88, the restoring member 88 is a torsion spring, for example, and the restoring member 88 applies a resilient bias to the supporting member 56 to rotate forward. Specifically, the torsion spring is located in the shaft hole 93 of the second pivot portion of the support member 56, the main body portion of the torsion spring is sleeved on the pivot 86, the upper side and the lower side of the torsion spring extend out to abut against ends respectively, the abutting end on the upper side of the torsion spring penetrates through the side wall of the second pivot portion to abut against the connecting seat 58, and the abutting end on the lower side of the torsion spring abuts against the front side face in the shaft hole. When the supporting member 56 rotates backward, the elastic bias of the torsion spring is overcome, and the elastic bias of the torsion spring to the supporting member 56 forward can provide a pre-tightening force for the supporting member 56 to abut or clamp on the rear surface of the display screen, so as to further improve the supporting stability.

Preferably, rubber pads are disposed on the inner side surfaces of the hooks 66 and the supporting surface of the supporting member 28, so as to prevent the portable fan 10 from scratching the display screen during installation and disassembly.

In the illustrated embodiment, the body 12 includes a surface shell 12a and a bottom shell 12b that are connected to each other, and the surface shell 12a and the bottom shell 12b are arranged in the vertical direction, and the two can be detachably fixed by a buckle or by a screw, and the like, and are conveniently used for disassembly and assembly.

The concepts described herein may be embodied in other forms without departing from the spirit or characteristics thereof. The particular embodiments disclosed should be considered illustrative rather than limiting. The scope of the invention is, therefore, indicated by the appended claims rather than by the foregoing description. Any changes which come within the meaning and range of equivalency of the claims are to be embraced within their scope.

Claims

1. The utility model provides a portable fan, its characterized in that, is including wholly being rectangular form body, the body includes the main part, be equipped with in the main part and accept chamber and installation cavity, accept the chamber with the installation cavity is followed the length direction of main part is separated and is arranged, it is equipped with the impeller to accept the intracavity, be equipped with in the installation cavity with the motor that the impeller drive is connected, the motor with it is equipped with the cushion to accept between the lateral wall in chamber.

2. The portable fan of claim 1, wherein the soft rubber pad is located between an end surface of the motor facing the fan wheel and a side wall of the receiving cavity.

3. The portable fan of claim 2, wherein the body further includes an air outlet portion extending forward relative to the main body portion and communicating with the main body portion, an air outlet is provided on a front surface of the air outlet portion, an air duct communicating the air outlet with the receiving cavity is formed in the air outlet portion, air generated by the operation of the fan wheel is blown out from the air outlet through the air duct, and a hooking member is provided below the air outlet portion.

4. The portable fan as claimed in claim 3, wherein the hook member comprises a first expansion member and a hook, a mounting groove is formed at the bottom of the air outlet portion, the first expansion member is slidably disposed in the mounting groove, the hook is connected to the front end of the first expansion member, and an elastic member is connected between the mounting groove and the first expansion member or the hook, so that the elastic member can provide an elastic bias for restoring the hook and the first expansion member after the hook and the first expansion member are pulled out forward.

5. The portable fan of claim 4, wherein the hook member further comprises a second telescopic member slidably disposed in the mounting groove, the second telescopic member having a second receiving groove, the first telescopic member slidably coupled in the second receiving groove, and the elastic member is capable of providing an elastic bias to return the hook, the first telescopic member and/or the second telescopic member after being pulled out forward.

6. The portable fan of claim 5, wherein one of said second telescoping member and said mounting slot is provided with a slide block, the other of said second telescoping member and said mounting slot is provided with a slide slot, said slide block slidably engaging said slide slot;

7. The portable fan of claim 5, wherein the air outlet portion is located at a top side of a front end of the main body portion, a connecting seat is provided between a bottom of the main body portion and a bottom of the air outlet portion, the mounting groove is formed at a front end of the connecting seat, and a supporting member is rotatably connected to a rear end of the connecting seat such that the supporting member can rotate back and forth relative to the connecting seat;

8. The portable fan as claimed in claim 3, wherein a wind guide for adjusting the wind direction is rotatably disposed in the wind outlet, and a silicone sheet is disposed at a rotational connection position between the wind guide and the sidewall of the wind outlet.

9. The portable fan according to claim 2, wherein two sides of the main body are respectively provided with a partition board, the two partition boards divide the cavity of the main body into the receiving cavity and the mounting cavity and the receiving cavity located at two sides of the receiving cavity, the mounting cavity and the receiving cavity are respectively covered with an end cap at the outer side, the portable fan further comprises a circuit board and a key board electrically connected with the circuit board, the circuit board and the key board are arranged in the receiving cavity, the body is provided with a switch key and a power interface, the switch key is connected with the key board for controlling the start and stop of the motor, and the power interface is electrically connected with the circuit board for connecting an external power supply.

10. The portable fan as claimed in claim 2, wherein a wire slot is further provided at the bottom of the receiving cavity, and a wire connected to the motor is fixed in the wire slot.