WO2022111452A1

WO2022111452A1 - Portable fan

Info

Publication number: WO2022111452A1
Application number: PCT/CN2021/132341
Authority: WO
Inventors: 王丹丹; 牛潇雨; 任卓荦; 杨广; 王永炯; 岳晓锋; 程建利; 杨勇升
Original assignee: 深圳市蓝禾技术有限公司
Priority date: 2020-11-27
Filing date: 2021-11-23
Publication date: 2022-06-02

Abstract

A portable fan (10) which can be mounted at the top of a display screen of an electronic device to blow air to a user in front of the display screen. The portable fan comprises an elongated main body (12) and a fan wheel (25) which is arranged in the main body (12). The main body (12) comprises a main body portion (14) and an air outlet portion (16) which extends forward relative to the main body portion (14) and is in communication with the main body portion (14). The front surface of the air outlet portion (16) is provided with an air outlet opening (18). The main body (12) is provided with an air inlet opening (20). Wind generated by the rotation of the fan wheel (25) is blown out from the air outlet opening (18). A hook member (26) is connected to the main body (12) and can be hooked on the front surface of the display screen such that the portable fan (10) can be fixed at the top of the display screen. The portable fan (10) is simple in structure and easy to operate, has a solid hook structure and is easy to carry. A user can conveniently mount the portable fan (10) on the display screen whenever needed.

Description

Portable Fan

technical field

The present application relates to the technical field of daily necessities, in particular to a portable fan.

Background technique

In hot summer, electric fans and air conditioners are the most commonly used cooling devices, but these cooling devices can only be used indoors and cannot be carried around. When people go out or rest in the open air, they can only rely on fans or natural The wind cools you down, but many times there is no natural wind, and it is tiring to use a fan. In response to this situation, various portable fans have appeared on the market, but the existing portable fans are all worn on the human body or placed on the desktop. In some scenarios, for example, when people are using computers or watching Wearing the portable fan on the body will bring inconvenience to the user when the TV is used, and it will take up space on the desktop if it is placed on the desktop.

SUMMARY OF THE INVENTION

In view of this, the present application proposes a portable fan that can be installed on a display screen of an electronic device.

The present application provides a portable fan, comprising an elongated body as a whole and a fan wheel disposed in the body. The body includes a main body and a fan that extends forward relative to the main body and communicates with the main body. The air outlet, the front surface of the air outlet is provided with an air outlet, the main body is provided with an air inlet, the wind generated by the operation of the fan wheel is blown out from the air outlet, and the main body is also connected with a hook pieces.

In one embodiment, a support arm is further connected to the body, and the support arm and the hook member are arranged at intervals in the front and rear.

In one embodiment, the support arm is rotatably connected to the body, so that the support arm can be rotated back and forth.

In one embodiment, the support arm is connected under the main body portion, and the hook member is located under the air outlet portion.

In one embodiment, the air outlet is located on the top side of the front end of the main body, a support seat is provided between the bottom of the main body and the bottom of the air outlet, and the hook is connected to the air outlet. The front end of the support base, and the support arm is connected to the rear end of the support base.

In one embodiment, the support arm and the rear end of the support seat are connected by a pivot shaft, one end of the pivot shaft is provided with a thread, the other end is provided with a nut, and the rear end of the support seat is provided with an interval. Two first pivoting parts, one of which is provided with a mounting hole adapted to the nut, and the other is provided on the first pivoting part for the pivot shaft to be provided with; One end of the thread passes through a first shaft hole, the top end of the support arm is provided with a second pivot portion, the second pivot portion is provided with a second shaft hole, and the second pivot portion extends into two Between the first pivoting parts and using the pivot shaft to pass through the installation hole, the second shaft hole and the first shaft hole in turn to realize the rotational connection, the pivot shaft is also sleeved with a reset member, so The reset member applies an elastic bias to the support arm to rotate it forward.

In one embodiment, the air outlet is located on the top side of the front end of the main body, the main body and the air outlet are both elongated and have the same length, and the air inlet is arranged on the front of the main body. At the bottom, the air outlet is in the shape of a long strip and is provided with an air guide member, and both ends of the air guide member are respectively rotatably connected to the side walls of the air outlet.

In one embodiment, a silicone sheet is provided at the rotational connection between the air guide member and the side wall of the air outlet; or, a driving member is further provided in the body, and the driving member and the air guide member The driving connection is used for driving the air guide member to rotate.

In one embodiment, the body is further provided with a clamping seat matched with the hooking member, and a clamping groove is formed between the clamping seat and the hooking member.

In one embodiment, rubber pads are respectively provided on the opposite surfaces of the hooking member and the clamping base.

In one embodiment, the hook is connected to the bottom of the air outlet and is located in front of the main body, and the hook is telescopically and slidably connected to the main body, so that the hook is It is retractable and retractable relative to the main body.

In one embodiment, the hooking piece includes a first telescopic piece and a hook, an installation groove is provided at the bottom of the air outlet, and the first telescopic piece can be slid back and forth in the installation groove. The hook is connected to the front end of the first telescopic piece, and an elastic piece is connected between the installation groove and the first telescopic piece or the hook, so that the hook and the first telescopic piece can be pulled forward Afterwards, the elastic member can provide elastic force to restore it.

In one embodiment, the main body is provided with a receiving cavity and an installation cavity, the receiving cavity and the installation cavity are separated and arranged along the length direction of the main body, and the fan wheel is arranged in the receiving cavity. Inside, the installation cavity is provided with a motor drivingly connected with the fan wheel, and a soft rubber pad is provided between the motor and the side wall of the receiving cavity.

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

In one embodiment, the two ends of the main body are respectively provided with partitions, and the two partitions divide the cavity in the main body into the receiving cavity and the installation at both ends of the receiving cavity. A cavity and an accommodating cavity, the mounting cavity and the outer side of the accommodating cavity are respectively covered with end caps, the portable fan further includes a circuit board and a key board electrically connected to the circuit board, the circuit board and the The key board is arranged in the accommodating cavity, the main body is provided with a switch key and a power interface, the switch key is connected with the key board to control the start and stop of the motor, and the power interface is connected to the power supply interface. The circuit board electrical connections are used to connect external power sources.

In an embodiment, a temperature changing component is further included, the temperature changing component is arranged on the air outlet path of the fan wheel, and the wind generated when the fan wheel is running passes through the temperature changing component and is blown out from the air outlet.

In one embodiment, it further includes an illuminating part, the illuminating part is connected above the main body, and the illuminating part includes an illuminating lamp.

In one embodiment, the aspect ratio of the air outlet is greater than 9:1.

To sum up, the present application provides a portable fan, which can be installed on the top of a display screen of an electronic device and used for blowing air to cool a user in front of the display screen without occupying additional desktop space. The overall design of the portable fan is a long strip, which can expand the air outlet range. The portable fan can be hooked on the front surface of the display screen through the hook, so that the portable fan can be fixed on the top of the display screen, and a support arm can also be provided, and the support arm is used for clamping or supporting on the rear surface of the display screen to increase the fixation. For stability, the support arm can be set to be rotatably connected with the body, which is convenient for users to remove or install the portable fan from the display screen. A clamping seat can also be provided on the main body, and the clamping seat cooperates with the hook to clamp on the top of the display screen to further increase the fixing stability. The portable fan of the present application is simple in structure, convenient in operation, stable in the hooking structure, and easy to carry, and the user can install the portable fan on the display screen at any time as needed, which brings convenience to the user.

Description of drawings

FIG. 1 is a schematic perspective view of a portable fan according to a first embodiment of the present application.

FIG. 2 is another perspective schematic view of the portable fan in FIG. 1 .

FIG. 3 is another perspective perspective view of the portable fan in FIG. 1 .

4 is a schematic perspective view of a portable fan according to a second embodiment of the present application.

FIG. 5 is a schematic perspective view of a portable fan according to a third embodiment of the present application.

FIG. 6 is an exploded schematic view of the portable fan in FIG. 5 .

FIG. 7 is another exploded schematic view of the portable fan in FIG. 5 .

FIG. 8 is a perspective cross-sectional view of the portable fan in FIG. 5 .

FIG. 9 is a schematic cross-sectional view of the portable fan in FIG. 5 .

10 is a schematic perspective view of a portable fan according to a fourth embodiment of the present application.

FIG. 11 is a schematic diagram of a hook, a support base and a support arm of the portable fan in FIG. 10 .

FIG. 12 is a schematic cross-sectional view of the portable fan in FIG. 10 after the support base and the like are removed.

FIG. 13 is an angular exploded schematic view of FIG. 11 .

FIG. 14 is another perspective exploded schematic view of FIG. 11 .

FIG. 15 is an exploded schematic view of the portable fan according to the fifth embodiment of the present application.

FIG. 16 is a schematic diagram of the air guide in FIG. 15 .

FIG. 17 is a schematic perspective view of a portable fan according to a sixth embodiment of the present application.

FIG. 18 is an exploded schematic view of the portable fan according to the seventh embodiment of the present application.

Detailed ways

Before the embodiments are described in detail, it is to be understood that the invention is not limited to the detailed structures or arrangements of elements described herein below or in the accompanying drawings. The invention may be embodied in other ways. Also, it is to be understood that the phraseology and terminology used herein is for the purpose of description and should not be interpreted as limiting. As used herein, "including", "including", "having" and similar expressions are meant to encompass the items listed thereafter, their equivalents, and other additional items. In particular, when describing "a certain element", the present invention does not limit the number of the element to one, and may include a plurality of elements.

As shown in Figures 1-3, the first embodiment of the present application provides a portable fan 10, which can be installed on the top of a display screen of an electronic device to cool down a user in front of the display screen. The electronic device is, for example, a display device such as a computer and a TV . The portable fan 10 includes a main body 12 and a fan wheel (in the view of this embodiment, the fan wheel is shown) disposed in the main body 12 . The main body 12 includes a main body portion 14 and extends forward from the main body portion 14 and communicates with the main body portion 14 . The main body 14 and the air outlet 16 can be integrally formed. The front surface of the air outlet 16 is provided with an air outlet 18 , and the main body 12 is provided with an air inlet 20 for the fan wheel to inhale air, and the wind generated by the operation of the fan wheel is blown out from the air outlet 18 .

In the illustrated embodiment, the main body 12 is in the shape of a long strip. Preferably, the air outlet portion 16 and the main body portion 14 are both in the shape of a long strip, so that the air outlet 18 on the air outlet portion 16 can be designed in a long strip shape. The aspect ratio of the air outlet 18 is not less than 4:1, that is, the length of the air outlet 18 is at least 4 times its width, preferably 8-12 times, to increase the air outlet range. In this embodiment, the length of the air outlet 18 The width ratio is greater than 9:1, and the length of the air outlet 10 is 10 times its width. The air outlet portion 16 is located on the top side of the front end of the main body portion 14, and the two are connected in a shape similar to a whistle when viewed from the side. The fan wheel is arranged in the main body part 14 , and the air inlet 20 is arranged at the bottom of the main body part 14 corresponding to the fan wheel. The air outlet 18 is in the shape of a long strip, and an air guide 21 is arranged in the air outlet 18. Both ends of the air guide 21 are rotatably connected to the side walls of the air outlet 18 and include a plurality of air guide plates 22. The plurality of air guide plates 22 are transverse The arrangement is to extend along the length direction of the air outlet, and the air outlet 18 is divided into a plurality of laterally extending sub air outlets between two adjacent air guide plates 22 . A linkage mechanism is arranged between several wind deflectors 22 , one of the wind deflectors 22 is connected with a toggle portion 24 , the user can make the wind deflector 22 swing up and down by toggling the toggle portion 24 , and drive other guide plates through the linkage mechanism. The wind plate 22 swings up and down together to adjust the direction of the wind deflector 22 , thereby adjusting the air outlet direction of the air outlet 18 . In this embodiment, the air outlet 18 is one and is elongated. In other embodiments, the air outlet 18 may also be provided in multiples and arranged at intervals along the length direction of the air outlet portion 16 .

A hook 26 is connected to the main body 12, and the hook 26 can be used for hooking on the front surface of the display screen, so that the portable fan 10 can be fixed on the top position of the display screen. In the illustrated embodiment, a support arm 28 is also connected to the main body 12 , and the support arm 28 and the hook 26 are arranged at intervals up and down, and can be used for clamping or supporting on the rear surface of the display screen, so as to increase the portable fan 10 . fixed stability. Preferably, the support arm 28 is rotatably connected with the main body 12, so that the support arm 28 can be rotated back and forth, so as to facilitate the user to remove or install the portable fan 10 from the display screen.

In this embodiment, the hook member 26 is located below the air outlet 16, so 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 Block the screen. Preferably, the support arm 28 is rotatably connected below the body portion 14 .

Further, a support seat 30 is provided between the bottom of the main body portion 14 and the bottom of the air outlet portion 16 . The support seat 30 includes two parts, one part is located at the bottom or front surface of the main body part 14 , and the other part is located in the air outlet part At the bottom of the body 16 , the two parts can be connected separately or integrally formed, and the support base 30 can also be integrally formed or installed and connected with the body 12 . At least part of the bottom surface of the support base 30 is an arc surface 32 , and the arc surface 32 can be used for matching with the arc-shaped rear surface of the display screen to further enhance the fixing stability of the portable fan 10 . In the described embodiment, the arc surface 32 is formed on the part of the support base 30 located at the bottom of the main body portion 14 , and the design of the arc surface 32 enables the portable fan 10 to be fixed on the display screen only by the hook member 26 . Fixed stably. The hook 26 is connected to the front end of the support base 30 , and the support arm 28 is rotatably connected to the rear end of the support base 30 .

Preferably, the main body 12 is further provided with a clamping seat 34 matched with the hooking member 26 , and a clamping groove 36 is formed between the clamping seat 34 and the hooking member 26 . In the embodiment shown in FIGS. 1-3 , the clamping seat 34 is provided on the front surface of the support seat 30 and is located at the rear side of the hooking member 26 . On the bottom part of the air outlet 16, the width of the clamping groove 36 matches the thickness of the display screen, so that the top of the display screen can be just clamped in the clamping groove 36, which increases the installation stability. In this embodiment, the clamping base 34 cooperates with the hook member 26 to clamp on the top of the display screen, and the support arm 28 is supported on the rear surface of the display screen.

Preferably, the hook member 26 is connected to the main body 12 through a retractable structure, so that the hook member 26 can be retracted back and forth relative to the clamping base 34 (ie, the main body portion 14 ). For example, the retractable structure is arranged in the front end of the support base 30 on the main body 12 and connected with the hook member 26, so that the width of the clamping groove 36 can be adjusted to adapt to different thicknesses of the display screen, and it is convenient for the portable fan 10 to remove the display from the display screen. Remove and install the top of the screen. In the illustrated embodiment, soft rubber pads 38 are provided on the opposite surfaces of the hook member 26 and the clamping base 34 , on the support surface of the support arm 28 and on the surface of the arc surface 32 to prevent the portable fan 10 from being installed and Scratches the display during disassembly.

The body 12 is also provided with a circuit board (not shown in the view of this embodiment), the circuit board can be arranged in the main body 14, and the fan wheel is electrically connected to the circuit board. The main body 12 is also provided with a switch button 40 electrically connected to the circuit board. The switch button 40 is used to control the start and stop of the fan wheel. Preferably, since the portable fan 10 is installed on the display screen, the switch button 40 can be set as a touch button, and the user only needs to touch the switch button 40 slightly to trigger, which is convenient for operation.

In the illustrated embodiment, the body 12 is further provided with a power interface 42 that is electrically connected to the circuit board. The power interface 42 is disposed on the rear side of the main body 14, for example, and the power interface 42 is used to connect an external power source, such as through a data cable. Connect to the display screen or the interface of the electronic device connected to the display screen to supply power to the portable fan 10 . In some embodiments, a battery (not shown in the view of this embodiment) may also be provided in the main body 12 , so that the portable fan 10 can supply power by itself, and can also be connected to an external power source through the power interface 42 to charge the battery.

In the second embodiment shown in FIG. 4 , the difference from the above-mentioned first embodiment is that the portable fan 10 is not provided with the holding seat 34 . When the portable fan 10 is installed, the hook 26 and the support arm 28 form two A clamping arm, the hook 26 can be hooked on the front surface of the display screen, and the support arm 28 is clamped on the rear surface of the display screen, so that the portable fan 10 can be fixed to the top of the display screen.

As shown in FIGS. 5-9 , the third embodiment of the present application provides a portable fan 10 . The general structure of this embodiment is the same as that of the above-mentioned first embodiment, and the same parts are not repeated here. There is a motor 27 drivingly connected with the fan wheel 25 , the fan wheel 25 is cylindrical, and the motor 27 is drivingly connected with the fan wheel 25 to drive the fan wheel 25 to rotate. The main body 14 is provided with an accommodation cavity 141 and an installation cavity 142 , the fan wheel 25 is arranged in the accommodation cavity 141 , the motor 27 is arranged in the installation cavity 142 , and a soft rubber pad 143 is arranged between the motor 27 and the side wall of the accommodation cavity 141 . , the vibration of the motor 27 can be reduced, thereby reducing the noise. Preferably, the distance between the fan wheel 25 and the front and rear sides of the accommodating cavity 141 is smaller than the distance between the fan wheel 25 and the upper and lower sides of the accommodating cavity 141 (refer to FIG. 8 ), so as to make the fan wheel 25 rotate smoothly, and Reduce wind noise.

Preferably, the accommodating cavity 141 and the mounting cavity 142 are arranged separately along the length direction of the main body portion 14 , and the soft rubber pad 143 is located between the end surface of the motor 27 facing the fan wheel 25 and the side wall of the accommodating cavity 141 . In the illustrated embodiment, the two ends of the main body portion 14 are respectively provided with partition plates 145 , and the two partition plates 145 divide the cavity in the main body portion 14 into a receiving cavity 141 and a mounting plate 141 respectively located on both sides of the receiving cavity 141 . The cavity 142 and the accommodating cavity 146 are respectively covered with end caps 147 on the outer sides of the mounting cavity 142 and the accommodating cavity 146 . The soft rubber pad 143 is disposed between the motor 27 and the partition 145 on the side of the accommodating cavity 141 close to the motor 27 . In other embodiments, the soft rubber pad 143 can also be arranged to at least partially cover the side surface of the motor 27 and the end surface of the motor 27 facing the fan wheel 25, that is, the soft rubber pad 143 covers the adjacent two surfaces of the motor (side and end surface), so that vibration noise can be further prevented from being generated between the side surface of the motor 27 and the side wall of the installation cavity 142, and the noise reduction effect is better.

In the illustrated embodiment, the end of the fan wheel 25 close to the motor 27 is provided with a drive hole, the drive shaft of the motor 27 is drivably connected to the drive hole through the corresponding partition plate 145, and the end of the fan wheel 25 away from the motor 27 is provided with a drive hole. A shaft hole is provided on the corresponding partition plate 145 of the rotating shaft, and the rotating shaft is rotatably connected to the shaft hole, so that the fan wheel 25 can be driven by the motor 27 to rotate in the receiving cavity 141 to generate wind.

The front surface of the air outlet 16 is provided with an air outlet 18, and an air duct 39 connecting the air outlet 18 and the receiving cavity 141 is formed in the air outlet 16, and the wind generated by the operation of the fan wheel 25 is blown out from the air outlet 18 through the air duct 39. . The main body 12 is provided with an air inlet 20 corresponding to the fan wheel 25 for the fan wheel 25 to inhale air. In this embodiment, an air guide member 21 is also rotatably provided in the air outlet 18. The air guide member 21 is in a long strip shape corresponding to the air outlet 18, and the air guide plate of the air guide member 21 is arranged horizontally, so that the air guide member 21 can be Rotating up and down, the user can adjust the air outlet direction by dialing the air guide member 21 . Specifically, the two ends of the air guide 21 are respectively provided with rotating shafts, and the opposite two side walls of the air outlet 18 are correspondingly provided with shaft holes. There is also a silica gel sheet 211 at the position, which is used to increase the rotational damping of the air guide member 21 and prevent the air guide member 21 from rotating under the condition of no external force.

Optionally, a plurality of spacers 210 are arranged between two adjacent air guide plates, the spacers 210 are arranged at intervals along the length direction of the air outlet 16, and the spacers 210 separate the air guide plates. The sub-air outlets between them are divided into a plurality of sub-air outlets arranged along the length direction of the air outlet portion 16 . The spacer 210 divides the sub air outlets into a plurality, and the spacer 210 can guide the flow direction of the air flow out of the air outlet 18. In this way, the air guide 21 expands the air outlet range by automatically sweeping the air. It can also improve the uniformity of the air outlet.

The portable fan 10 further includes a circuit board 44 and a key board 46 , and the circuit board 44 and the key board 46 are both disposed in the accommodating cavity 146 . The main body 12 is also provided with a switch button (not shown in the view of this embodiment) and a power interface 42, the switch button is used for user operation, the button board 46 is electrically connected with the circuit board 44, and the switch button is connected with the button board 46 for use. The on-off of the motor 27 is controlled, and the switch button is provided on the end face of the air outlet 16, for example. Preferably, since the portable fan 10 is installed on the display screen, the switch button can be set as a touch button, and the user only needs to touch the switch button slightly to trigger, which is convenient for operation.

Preferably, the bottom of the accommodating cavity 141 is provided with a wire slot 52 extending along the length direction of the main body 14, the motor 27 is electrically connected to the circuit board 44, and the wire connecting the motor 27 and the circuit board 44 can be fixed in the wire slot 52, Avoid stray wires.

The air inlets 20 are distributed in the bottom area of the main body 14 , and the arc surface of the bottom of the support seat 30 is provided with a plurality of through holes 60 corresponding to the air inlets 20 , so as to avoid the influence of the air intake due to the arrangement of the support seat 30 . In the illustrated embodiment, the air inlet 20 includes a plurality of air inlet holes arranged at intervals along the length direction of the main body portion 14, and the air inlet holes and the through holes 60 are both strip-shaped holes extending along the circumferential direction of the main body portion 14, so as to be suitable for The shape of the fan wheel 25 is matched to enhance the air intake efficiency.

Specifically, in this embodiment, the hooking member 26 includes a first telescopic member 261 , a second telescopic member 262 and a hook 263 , and a mounting groove 68 is provided at the bottom of the air outlet 16 , and the mounting groove 68 is formed at the front end of the support base 30 . The second telescopic piece 262 is slidably disposed in the installation slot 68 , the front end of the second telescopic piece 262 is provided with a second receiving slot 70 , and the first telescopic piece 261 is slidably connected in the second receiving slot 70 . The front end of the first retractable member 261 is provided with a first receiving groove 72, and the rear end of the hook 263 is provided with a connecting portion 74, and the connecting portion 74 is fixed in the first receiving groove 72. For example, the connecting portion 74 is connected to the first retractable member 261 through screws. Fixed connection, so that the hook 263 is fixedly connected to the front end of the first telescopic member 261 .

An elastic member (not shown in the figure in this embodiment) is connected between the installation groove 68 and the connecting portion 74 or the first telescopic member 261 . After the retractable member 262 is pulled forward, the elastic member can provide the elastic force to restore it, and the elastic force can also provide the clamping pre-tightening force when the hook 263 is hooked on the display screen, so that the hook is more firmly held. Preferably, two elastic members are provided, which are respectively connected to the connecting portion 74 or both sides of the first telescopic member 261 to provide a balanced and stable pulling force. Specifically, in this embodiment, the two ends of the connecting portion 74 are respectively provided with first fixing posts, the mounting groove 68 is provided with two second fixing posts correspondingly, one end of the elastic member is fixed on the first fixing posts, and the other end is fixed on the second fixing column. Of course, in other embodiments, the hook 263 may also be integrally connected with the front end of the first telescopic member 261 or fixedly connected with other structures.

The second telescopic member 262 is slidably disposed in the installation groove 68 . In the embodiment shown, sliders 78 are respectively provided on the outer surfaces of the two opposite side walls of the second telescopic member 262 . The inner surfaces of the side walls are respectively provided with sliding grooves 80 , and the sliding block 78 is slidably matched with the sliding grooves 80 , so that the second telescopic member 262 can be slidably disposed in the installation groove 68 . In other embodiments, the installation positions of the sliding block 78 and the sliding groove 80 can also be interchanged, or the second telescopic element 262 and the installation groove 68 can also be connected by other sliding structures.

The first telescopic element 261 is slidably connected in the second receiving groove 70 . In order to prevent the first telescopic element 261 from sliding out of the second receiving groove 70 , in the embodiment shown, the gap between the first telescopic element 261 and the second receiving groove 70 is A first stopper 82 and a second stopper 84 are arranged between them to stop and cooperate with each other. For example, the first stopper 82 is arranged at the rear end of the outer surface of the opposite two side walls of the first telescopic member 261 , and the second stopper 84 The front ends of the opposite two side walls of the second receiving slot 70 are arranged so that when the first retractable member 261 slides forward relative to the second retractable member 262 to a limit distance, the second block 84 stops the first block 82 to prevent The first telescopic element 261 is prevented from sliding forward and out of the second receiving slot 70 . The hook 263 is connected to the support base 30 through a retractable structure, so that the hook 263 can be retracted back and forth relative to the clamping base 34 to adapt to display screens of different thicknesses, and facilitate the removal and installation of the portable fan 10 from the top of the display screen.

In other embodiments, only one telescopic element or more than two telescopic elements may be disposed between the hook 263 and the body 12 , as long as the hook 263 can be retracted back and forth relative to the main body 12 . For example, when a telescopic piece is provided, the hooking piece 26 includes a first telescopic piece 261 and a hook 263, an installation groove 68 is provided at the bottom of the air outlet 16, and the first telescopic piece 261 can be slid back and forth in the installation groove 68, and the hook 263 is connected to the front end of the first telescopic piece 261, and an elastic piece is connected between the installation slot 68 and the first telescopic piece 261 or the hook 263, so that the elastic piece can provide the hook 263 and the first telescopic piece 261 when pulled forward. Elastic force of reset.

In the embodiment in which the hooking member 26 includes the first telescopic member 261 , the second telescopic member 262 and the hook 263 , the first telescopic member 261 is slidably disposed in the second receiving slot 70 of the second telescopic member 262 , The second telescopic element 262 is also slidably disposed in the installation groove 68 forward and backward, so the first telescopic element 261 is also slidably connected in the installation groove 68 back and forth.

The support arm 28 is rotatably connected to the rear end of the support base 30 , and the support arm 28 can cooperate with the hook member 26 for clamping or supporting on the rear surface of the display screen. Specifically, the support arm 28 and the rear end of the support base 30 are rotatably connected by a pivot shaft 86 , one end of the pivot shaft 86 is provided with a thread 87 , and the other end is provided with a nut 89 . The rear end of the support base 30 is provided with two first pivot portions at intervals, one of which is provided with a mounting hole adapted to the nut, and the other first pivot portion is provided with a mounting hole for the pivot portion. The shaft 86 is provided with a first shaft hole 91 through which one end of the thread 87 passes. Preferably, the inner wall of the first shaft hole 91 is provided with a texture matching the thread 87 . The top end of the support arm 28 is provided with a second pivoting portion, and the second pivoting portion is provided with a second shaft hole 93. During installation, the second pivoting portion extends between the two first pivoting portions to connect the pivot shaft 86 Pass through the mounting hole and the second shaft hole 93 in sequence, and then screw the nut 89 so that the threaded end of the pivot shaft 86 is screwed into the first shaft hole 91 , so that the support arm 28 can rotate back and forth relative to the pivot shaft 86 . In other embodiments, the first shaft hole 91 may not be provided with a texture matching the thread 87, and the end of the pivot shaft 86 with the thread 87 passes through the mounting hole, the second shaft hole 93 and the first shaft in sequence. After the hole 91 is formed, it is then threadedly connected to the thread 87 of the pivot shaft 86 through a nut, so as to realize the fixation of the pivot shaft 86 .

Preferably, a reset member 88 is also sleeved on the pivot shaft 86. The reset member 88 is, for example, a torsion spring. The reset member 88 exerts an elastic bias on the support arm 28 to rotate it forward. Specifically, the torsion spring is located in the shaft hole 93 of the second pivot portion of the support arm 28, the main body of the torsion spring is sleeved on the pivot 86, the upper and lower sides of the torsion spring extend out of the abutting ends respectively, and the upper side of the torsion spring The abutting end of the torsion spring abuts against the support seat 30 through the side wall of the second pivot portion, and the abutting end of the lower side of the torsion spring abuts on the front side in the shaft hole. When the support arm 28 is rotated backward, the elastic bias of the torsion spring needs to be overcome, and the forward elastic bias of the torsion spring to the support arm 28 can provide the support arm 28 with a preload against or clamped on the rear surface of the display screen force to further enhance the stability of the support. In the illustrated embodiment, the main body 12 includes a face case 12a and a bottom case 12b that are connected to each other. The face case 12a and the bottom case 12b are arranged in the up-down direction, and the two can be fixed by means of snaps or screws. Removable and fixed for easy disassembly.

As shown in FIGS. 10-14 , the fourth embodiment of the present application provides a portable fan 10 , which is different from the third embodiment above in that the structures of the hook 26 , the support base 30 , the installation groove 68 and the support arm 28 are the same. Some parts are not repeated here. In this embodiment, the support base 30 is assembled and fixed on the main body 12 , and the top of the front end of the support base 30 is integrally connected with the base body 301 . In the installation groove 68 , the hook member 26 can be telescopically and slidably connected in the installation groove 68 . The seat body 301 and the hooking member 26 are connected by an elastic member 302, for example, a spring, which is used to exert an elastic bias on the hooking member 26 to move it toward the seat body 301, so that the hooking member 26 is opposite to each other. The seat body 301 can be elastically reset back after sliding forward and pulling out. A guide member 50 is provided in the installation groove 68 , the guide member 50 includes a guide portion 54 extending forward, and the hook member 26 is provided with a guide groove 56 matched with the guide portion 54 , that is, when the hook member 26 slides back and forth relative to the base 301 When the guide portion 54 slides back and forth in the guide groove 56, the guide portion 54 and the guide groove 56 cooperate with each other so that the hook member 26 can telescopically slide relative to the base 301 in the front and rear directions, thereby increasing the stability of the retractable sliding of the hook member 26. sex.

Preferably, the cross-section of the guide groove 56 is a closed annular structure, so that the four sides of the guide portion 54 are accommodated in the guide groove 56 to prevent the hook member 26 from shaking during the telescopic sliding process and further enhance the stability.

Further, the guide member 50 further includes a mounting portion 58, the mounting portion 58 is in the shape of a plate, the guide portion 54 is formed by bending forward from the top end of the mounting portion 58 and integrally extending forward, and the mounting portion 58 is fixed on the rear side wall of the mounting groove 68, For example, the mounting portion 58 is fixed on the rear side wall of the mounting groove 68 by screws, so that the guide member 50 is fixed in the mounting groove 68 .

In the illustrated embodiment, the hooking member 26 includes a first telescopic member 261 slidably connected to the installation groove 68 and a hook 263 connected to the front end of the first telescopic member 261 , and the guide groove 56 is disposed behind the first telescopic member 261 The end corresponds to the position of the guide portion 54 , for example, the guide member 50 is fixed at the middle position in the installation groove 68 , and the guide groove 56 is set at the middle position of the rear end of the first telescopic member 261 . The bottom end of the hook 263 protrudes from the bottom surface of the first telescopic member 261 , the bottom of the base body 301 protrudes downward with a clamping seat 34 , and a clamping groove is formed between the front surface of the clamping seat 34 and the rear surface of the hook 263 36, for holding the top of the display screen of the electronic device. Optionally, a soft rubber pad 38 may be provided on the front surface of the clamping base 34 and the rear surface of the hook 263 to avoid scratching the display screen surface and enhance the clamping stability. The user can change the thickness of the clamping slot 36 by operating the hook member 26 to retract and slide relative to the base 301 back and forth, so that the clamping assembly 13 can be adapted to display screens of different thicknesses, and it is convenient for the portable fan 10 to be removed from the top of the display screen and installed. Install.

Further, the front end of the first retractable member 261 is provided with a first receiving groove 72 , and the rear end of the hook 263 is provided with a connecting portion 74 . During installation, the connecting portion 74 extends into the first receiving groove 72 and is fixed to the first retractable member 261 . The connection is, for example, screwed to the connection. The rear surface of the hook 263 is provided with an escape groove 73 at a position corresponding to the guide groove 56 , so that when the first telescopic member 261 is retracted into the installation groove 68 , the front end of the guide portion 54 is correspondingly accommodated in the escape groove 73 .

The elastic members 302 are connected between the seat body 301 and the hooking member 26 . Specifically, two elastic members 302 are provided, and the two elastic members 302 are respectively arranged on both sides of the guide member 50 , on the side wall of the mounting groove 68 of the seat body 301 . A first positioning column 75 is respectively provided on both sides of the guide member 50 , two second positioning columns 76 are correspondingly arranged at the rear end of the hook 263 , and both ends of the two elastic members 302 are respectively fixedly connected to the corresponding first positioning column 75 . and the second positioning post 76 , an elastic bias is applied to the hook member 26 to move it toward the seat body 301 , and the elastic bias provides a clamping pre-tightening force.

Preferably, the rear end of the first telescopic member 261 is provided with a barb portion 79 for hooking on the blocking portion 81 after the first telescopic member 261 slides forward for a certain distance, so as to limit the hooking member 26 , to prevent it from sliding forward excessively and detaching from the seat body 301 . In the illustrated embodiment, the barb portion 79 is disposed on the top of the rear end of the first telescopic member 261, and the blocking portion 81 is formed on the top side of the installation groove 68, for example, at the bottom of the air outlet 16 (see FIG. 12 ). ). In other embodiments, the blocking portion 81 can also be provided on the side wall of the installation groove 68; the barb portion 79 can be provided on the upper side or the lower side of the rear end of the first telescopic member 261, correspondingly, the blocking portion 81 is also They can be correspondingly arranged on the upper and lower side walls of the installation groove 68 .

In the illustrated embodiment, the support base 30 is installed and fixed on the main body 12 , for example, fixed on the bottom front side of the main body portion 14 by screws, so that the base body 301 is located at the bottom of the air outlet portion 16 . The lower end (that is, the rear end) of the support base 30 is rotatably connected with a support arm 28, and the support arm 28 and the hook 26 are arranged at intervals up and down, and the combination of the two can firmly clamp and fix the portable fan 10 on the top of the display screen. Location. In addition, the support arm 28 can be rotated back and forth relative to the support base 30 to facilitate the user to remove or install the portable fan 10 from the display screen.

Preferably, the support base 30 is designed in an arc shape that can match the arc-shaped rear surface of the display screen to further enhance the fixing stability of the portable fan 10, and the arc shape is adapted to the arc-shaped bottom surface of the main body portion 14, so that the support The seat 30 is abutted and fixed on the arc-shaped bottom surface of the main body portion 14 .

The support arm 28 is rotatably connected to the bottom end of the support base 30 . Specifically, the support arm 28 and the bottom end of the support base 30 are rotatably connected through a pivot shaft 86 , one end of the pivot shaft 86 is provided with a thread 87 , and the other end is provided with a nut 89 . The bottom end of the support base 30 is provided with two first pivot portions 90 at intervals, and the first pivot portion 90 is provided with a first shaft hole 901 for the pivot shaft 86 to pass through. The end wall is provided with a mounting hole adapted to the nut 89, the mounting hole is communicated with the corresponding first shaft hole 901, and the outer end wall of the other first pivot portion 90 is provided with a thread 87 for the pivot shaft 86. An assembly hole 902 is penetrated at one end of the assembly hole 902 , the assembly hole 902 communicates with the corresponding first shaft hole 901 , and the diameter of the assembly hole 902 is larger than the diameter of the first shaft hole 901 .

Preferably, the assembly hole 902 is provided with a polygonal nut 100 and a cap 102 , the polygonal nut 100 is threadedly connected to the thread 87 , and a positioning block 98 is also provided in the assembly hole 902 , and the positioning block 98 clamps the outer edge of the polygonal nut 100 In order to prevent the polygonal nut 100 and the pivot 86 from rotating in the assembly hole 902 , the cap 102 is placed on the opening of the assembly hole 902 to cover the polygonal nut 100 and the pivot 86 , so as to avoid exposure and affect the appearance of the product. In other embodiments, the inner side of the mounting hole 902 can also be designed as a polygon to fit with the outer side of the polygonal nut 100 to prevent the polygonal nut 100 from rotating in the mounting hole 902 .

The top end of the support arm 28 is provided with a second pivot portion 280, and the second pivot portion 280 is provided with a second shaft hole 281 for the pivot shaft 86 to pass through. Between a pivot portion 90, the pivot shaft 86 is inserted into the installation hole, one of the first shaft holes 901, the second shaft hole 281, the other first shaft hole 901 and the assembly hole 902 in sequence, and then the polygonal nut is screwed 100 is threadedly connected with the thread 87 of the pivot shaft 86 to realize the fixation of the pivot shaft 86 , and finally the cap 102 is put on so that the support arm 28 can rotate back and forth relative to the support base 30 .

Preferably, a reset member 88 is also sleeved on the pivot shaft 86 . The reset member 88 is, for example, a torsion spring, and the reset member 88 is used to apply an elastic bias to the support arm 28 to rotate it forward. Specifically, the torsion spring is located in the second shaft hole 281 of the second pivot part 280 of the support arm 28, the main body of the torsion spring is sleeved on the pivot shaft 86, and the upper and lower sides of the torsion spring extend out of the abutting ends respectively, The abutting end on the upper side of the torsion spring passes through the side wall of the second pivot portion 280 and abuts on the support base 30 , and the abutting end on the lower side of the torsion spring abuts on the inner wall in the support arm 28 . When the support arm 28 is rotated backward, the elastic bias of the torsion spring needs to be overcome, and the forward elastic bias of the torsion spring to the support arm 28 can provide the support arm 28 with a preload against or clamped on the rear surface of the display screen force to further enhance the stability of the support.

Optionally, the support arm 28 includes a first plate body 282 and a second plate body 283 that are assembled and connected back and forth, and the two can be detachably fixed by means of snaps or screw fixing, which is convenient for disassembly and assembly.

As shown in FIGS. 15-16 , the fourth embodiment of the present application provides a portable fan 10 , which is different from the above-mentioned fourth embodiment in the structure of the air guide 21 in the air outlet 16 , and the same parts are not repeated here. In this embodiment, the air guide member 21 is driven by the driving member 31 to realize automatic wind sweeping, and includes a transmission member connected with the air guide member 21 and a driving member 31 connected with the transmission member. The driving member 31 passes through the The transmission member drives the air guide member 21 to swing within the air outlet 18 of the air outlet portion 16 to realize automatic air sweeping. By repeatedly swinging the air guide member 21 in the air outlet 18 to automatically sweep the air, the air outlet range can be expanded, and the user located in front of the screen of the electronic device can be blown to dissipate heat, thereby improving the user experience.

In some embodiments, the transmission member includes a first gear 321 connected with the driving member 31 and a second gear 322 meshed with the first gear 321, and the second gear 322 is connected to the air guide member 21 is connected, and the rotation center of the driving member 31 is eccentric to the rotation center of the first gear 321 . The first gear 321 and the second gear 322 are meshed, and when the driving member 31 drives the first gear 321 to rotate, the first gear 321 drives the second gear 322 to rotate, and then the second gear 322 drives the air guide member 21 to swing. The rotation center of the driving member 31 and the rotation center of the first gear 321 are eccentrically arranged, so that the rotation center of the first gear 321 can be used as a reference point to distinguish the long axis direction and the short axis direction. During the meshing and relative rotation of the gears 322, when the first gear 321 changes from the state of meshing with the second gear 322 in the long-axis direction to meshing with the second gear 322 in the short-axis direction, the driving member 31 switches the rotation direction again, so, The swing control of the air guide member 21 can be realized without the need to accurately calculate the number of revolutions of the driving member 31, thereby simplifying the control strategy. The transmission member is installed at one end of the air guide member 21 , and the other end of the air guide member 21 is installed with a motor 27 for driving the fan wheel 25 to work.

Optionally, after the driving member 31 drives the first gear 321 to rotate by a set angle in a first direction, the driving member 31 drives the first gear 321 to rotate in a first direction opposite to the first direction. Rotate in two directions by a set angle, and repeat the process to drive the air guide member 21 to swing in the air outlet 18 . The first gear 321 and the second gear 322 are provided at one end of the air guide member 21, the driving member 31 may be a motor, and the first gear 321 is fixedly connected with the motor shaft. The driving member 31 drives the first gear 321 to switch and rotate between the first direction and the second direction, and accordingly controls the air guide member 21 to swing up and down in the air outlet 16 .

Optionally, one end of the air guide member 21 is provided with a shaft rod 212 , the shaft rod 212 is provided with a protrusion 213 , and the center of the second gear 322 is provided with a shaft hole corresponding to the shaft rod 212 . 323 and a groove 324 at the edge of the shaft hole 323, the shaft rod 212 passes through the shaft hole 323, and the protrusion 213 cooperates with the groove 324 to limit the shaft rod 212 relative rotation with the second gear 322 . The shaft rod 212 protrudes outward from the end of the air guide 21 , and the arrangement of the protrusions 213 makes the shaft rod 212 non-circular, so that after the shaft rod 212 is connected with the second gear 322 , the shaft rod 212 and the second gear 322 The relative movement between them in the circumferential direction is restricted, and when the second gear 322 rotates, the shaft rod 212 can drive the air guide 21 to rotate together.

In some embodiments, the air deflector 21 includes a first air deflector 215 and a second air deflector 216 arranged along the length direction of the air outlet 16 and connected to the first air deflector 215 and the second air deflector 216 respectively. The connecting plates 217 at both ends of the second air guide plate 216 , an air outlet gap is formed between the first air guide plate 215 and the second air guide plate 216 , and the opposite ends of the air outlet portion 16 are respectively There is a mounting portion 161 on which the connecting plate 217 is mounted. When the air guide member 21 swings up and down in the air outlet 16, the first air guide plate 215 and the second air guide plate 216 can move the air flow to flow to the upper side of the air outlet 18 and the lower side of the air outlet 18 respectively, thereby expanding the portable fan. the air outlet range. The connecting plate 217 rotatably mounts the first air guide plate 215 and the second air guide plate 216 on the assembling portion 161 . Optionally, the shaft rod 212 can be provided on the connecting plate 217, and the assembling part 161 is provided with a connecting hole for the shaft rod 212 to pass through. The shaft 212 outside the mounting portion 161 is connected with the second gear 322 in the transmission member.

Further, the main body 12 is also provided with a negative ion generator 122 , and the negative ion releasing end of the negative ion generator 122 is located in the air outlet 16 . The negative ion generator 122 is used to generate negative ions, so that the blown wind has negative ions, which further improves the use experience of the portable fan. Optionally, the portable fan further includes a remote controller 300, which is used to control the opening, closing and rotation speed of the fan wheel 25, and to control the driving member 31 to drive the air guide member 21 to rotate. The portable fan is controlled by a remote control, which is convenient for users to use.

As shown in FIG. 17 , a sixth embodiment of the present application provides a portable fan 10 . The specific structure of this embodiment is the same as that of the above-mentioned fourth embodiment, and the same parts will not be repeated here. The difference between this embodiment and the fourth embodiment is Yes, the top of the main body 12 is also provided with a lighting part 123, the lighting part 123 is connected to the upper part of the main body 12, the lighting part 123 includes a plurality of lighting lamps 124, and the lighting lamps 124 are preferably LED lamp beads. In other embodiments, The lighting lamp 124 can also be an elongated light tube. By setting the lighting part 123, when the user works in front of the electronic display screen at night, the wind blown out from the air outlet 16 of the portable fan is evenly blown towards the user's face. The electronic display screen is irritating to the eyes when the display screen is used. In this way, the user can use the portable fan to blow and dissipate heat while supplementing the lighting to protect the eyes.

As shown in FIG. 18 , a seventh embodiment of the present application provides a portable fan 10 . The specific structure of this embodiment is the same as that of the above-mentioned fourth embodiment, and the same parts are not repeated here. The difference between this embodiment and the fourth embodiment is Yes, it also includes a temperature-changing component 125. The temperature-changing component 125 is arranged on the air outlet path of the fan wheel 25, preferably in the air duct 39. The wind generated when the fan wheel 25 is running passes through the temperature-changing component 125. Blowing out from the air outlet 18, the temperature changing component 125 can be a cooling component with a cooling function or a heating component with a heating function. The user in front of the display screen of the electronic device can choose cold air or warm air according to their own needs.

Claims

A portable fan, which is characterized in that it includes an elongated body as a whole and a fan wheel arranged in the body, the body includes a main body and a body that extends forward relative to the main body and communicates with the main body. The front surface of the air outlet is provided with an air outlet, the main body is provided with an air inlet, the wind generated by the operation of the fan wheel is blown out from the air outlet, and the main body is also connected with a hook Holder.
The portable fan according to claim 1, wherein a support arm is further connected to the main body, and the support arm and the hook member are arranged at intervals in the front and rear.
The portable fan according to claim 2, wherein the support arm is rotatably connected to the body, so that the support arm can rotate back and forth.
The portable fan according to claim 3, wherein the support arm is connected under the main body portion, and the hook member is located under the air outlet portion.
The portable fan according to claim 4, wherein the air outlet is located on the top side of the front end of the main body, and a support seat is provided between the bottom of the main body and the bottom of the air outlet. , the hook is connected to the front end of the support seat, and the support arm is connected to the rear end of the support seat.
The portable fan according to claim 5, wherein the support arm and the rear end of the support base are connected by a pivot, one end of the pivot is provided with a thread, and the other end is provided with a nut, the The rear end of the support base is provided with two first pivot parts, one of which is provided with a mounting hole adapted to the nut, and the other is provided on the first pivot part. There is a first shaft hole through which one end of the pivot shaft is provided with a thread, the top end of the support arm is provided with a second pivot portion, the second pivot portion is provided with a second shaft hole, and the first pivot portion is provided with a second shaft hole. The second pivoting portion extends between the two first pivoting portions, and uses the pivot shaft to pass through the mounting hole, the second shaft hole and the first shaft hole in turn to achieve rotational connection, and the pivot shaft is on the A reset member is also sleeved, and the reset member applies an elastic bias to the support arm to rotate it forward.
The portable fan according to claim 1, wherein the air outlet is located on the top side of the front end of the main body, the main body and the air outlet are both elongated and have the same length, and the air inlet The air outlet is arranged at the bottom of the main body, the air outlet is in the shape of a long strip and is provided with an air guide member, and the two ends of the air guide member are respectively rotatably connected to the side walls of the air outlet.
The portable fan according to claim 7, wherein a silicone sheet is provided at the rotational connection between the air guide member and the side wall of the air outlet; The driving member is drivingly connected with the air guiding member for driving the air guiding member to rotate.
The portable fan according to claim 1, wherein the main body is further provided with a clamping seat matched with the hooking member, and a clamping groove is formed between the clamping seat and the hooking member .
9. The portable fan according to claim 9, wherein rubber pads are respectively provided on the opposite surfaces of the hook and the clamping base.
The portable fan according to claim 1, wherein the hook is connected to the bottom of the air outlet and is located in front of the main body, and the hook and the main body are retractable and slidable connected, so that the hook can be retracted back and forth relative to the main body.
The portable fan according to claim 11, wherein the hooking member comprises a first retractable member and a hook, the bottom of the air outlet is provided with a mounting groove, and the first retractable member can be slid back and forth. In the installation slot, the hook is connected to the front end of the first telescopic piece, and an elastic piece is connected between the installation slot and the first telescopic piece or the hook, so that the hook and the After the first telescopic element is pulled forward, the elastic element can provide an elastic force for restoring the first telescopic element.
The portable fan according to claim 1, wherein the main body is provided with a receiving cavity and an installation cavity, and the receiving cavity and the installation cavity are separated and arranged along the length direction of the main body, and the The fan wheel is arranged in the accommodating cavity, the installation cavity is provided with a motor drivingly connected with the fan wheel, and a soft rubber pad is arranged between the motor and the side wall of the accommodating cavity.
The portable fan according to claim 13, wherein the soft rubber pad is located between the end surface of the motor facing the fan wheel and the side wall of the accommodating cavity.
The portable fan according to claim 13, wherein the two ends of the main body are respectively provided with partitions, and the two partitions divide the cavity in the main body into the receiving cavity and the two partitions located in the main body. The installation cavity and the accommodating cavity at both ends of the accommodating cavity, the outside of the installation cavity and the accommodating cavity are respectively covered with end caps, and the portable fan also includes a circuit board and a button electrically connected to the circuit board The circuit board and the key board are arranged in the accommodating cavity, the body is provided with a switch key and a power interface, and the switch key is connected to the key board to control the start of the motor. stop, the power interface is electrically connected to the circuit board for connecting an external power source.
The portable fan according to claim 1, further comprising a temperature-changing component, the temperature-changing component is arranged on the air outlet path of the fan wheel, and the wind generated when the fan wheel is running passes through the temperature-changing component blow out from the air outlet.
The portable fan according to claim 1, further comprising an illuminating part, the illuminating part is connected to the upper part of the main body, and the illuminating part comprises an illuminating lamp.
The portable fan according to claim 1, wherein the length-width ratio of the air outlet is greater than 9:1.