CN213392785U

CN213392785U - Portable fan

Info

Publication number: CN213392785U
Application number: CN202022141816.XU
Authority: CN
Inventors: 李伟平; 杨广; 伍勋焕; 刘凯
Original assignee: Shenzhen Ranvoo Technology Co Ltd
Current assignee: Shenzhen Ranvoo Technology Co Ltd
Priority date: 2020-09-25
Filing date: 2020-09-25
Publication date: 2021-06-08
Anticipated expiration: 2030-09-25

Abstract

The utility model discloses a portable fan, which comprises a bracket, first fan and second fan, be equipped with in the support and be used for holding the first chamber that holds of first fan and the second that is used for holding the second fan holds the chamber, the axis of rotation of first fan and the contained angle that the axis of rotation becomes of second fan are 5 to 90, the support is equipped with first air intake, the second air intake, first air outlet and second air outlet, first air intake and first air outlet all with first chamber of holding be linked together, second air intake and second air outlet all hold the chamber with the second and are linked together. The included angle formed by the rotation axes of the two fans is set to be 5-90 degrees, so that the whole portable fan can be made into different thicknesses to adapt to the design of shells with different thicknesses, and the diversified design of the portable fan on the shell is facilitated.

Description

Portable fan

Technical Field

The utility model relates to a fan technical field especially relates to a portable fan.

Background

Along with the improvement of living standard, people also put higher demands on the comfort and the convenience of life. In recent years, various portable fans such as a handheld fan and a portable fan are available on the market to provide cool air to users at any time and any place. Compared with a handheld fan, the portable fan needs a user to hold the fan, is erected on the neck, can liberate the hands of the user, is popular with the public, and is particularly convenient for the user in sports, outdoor activities and other occasions.

The existing portable fan is composed of a support which can be worn on the neck of a human body and a fan which is connected to the support. An air duct and an air outlet communicated with the air duct and the outside are formed in the bracket; the fan operates to form a forced airflow, and the forced airflow flows along the air duct and is finally blown to the neck by the air outlet. Because the portable fan need consider putting of portable fan the inside fan to the design of shell, but a plurality of fans of current portable fan the inside all put towards a direction, lead to portable fan to be restricted in the shell design, the portable fan of not being convenient for is to the diversified design of shell.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects and deficiencies in the prior art, the utility model aims to provide a portable fan to solve the problems in the prior art.

The purpose of the utility model is realized through the following technical scheme:

the utility model provides a portable fan, which comprises a bracket, first fan and second fan, be equipped with the first chamber that holds that is used for holding this first fan in this support and the second that is used for holding this second fan holds the chamber, the axis of rotation of this first fan and the contained angle that the axis of rotation of this second fan becomes are 5 to 90, this support is equipped with first air intake, the second air intake, first air outlet and second air outlet, this first air intake and this first air outlet all hold the chamber with this first and be linked together, this second air intake and this second air outlet all hold the chamber with this second and be linked together.

Further, the included angle formed by the rotation axis of the first fan and the rotation axis of the second fan is 15 degrees, 45 degrees, 60 degrees or 90 degrees; and/or a first air guide piece and a second air guide piece are arranged in the support, the first air guide piece is arranged in the first accommodating cavity and is separated to form a first air channel, the second air guide piece is arranged in the second accommodating cavity and is separated to form a second air channel, air generated by the operation of the first fan is blown out from the first air outlet after passing through the first air channel, and air generated by the operation of the second fan is blown out from the second air outlet after passing through the second air channel.

Further, the first air duct gradually becomes smaller from the end close to the first fan to the end far away from the first fan, and the second air duct gradually becomes smaller from the end close to the second fan to the end far away from the second fan.

Furthermore, the first air outlet is arranged on the left side and/or the right side of the bracket, the first air duct comprises a left air duct and/or a right air duct, the left air duct is communicated with the first air outlet on the left side of the bracket, and the right air duct is communicated with the first air outlet on the right side of the bracket.

Furthermore, the second air outlet is arranged at the upper side and the lower side of the bracket, the second air duct comprises an upper air duct and a lower air duct, the upper air duct is communicated with the second air outlet positioned at the upper side of the bracket, and the lower air duct is communicated with the second air outlet positioned at the lower side of the bracket.

Furthermore, the first air guide piece separates the first accommodating cavity to form a first accommodating cavity, and the second air guide piece separates the second accommodating cavity to form a second accommodating cavity.

Further, the portable fan further comprises a battery, the battery is contained in the first containing cavity or/and the second containing cavity, and the battery is used for providing electric energy for the first fan and the second fan.

Furthermore, the portable fan further comprises a circuit board, the circuit board is arranged in the first accommodating cavity or/and the second accommodating cavity and is electrically connected with the first fan and the second fan respectively, a driving circuit and a controller connected with the driving circuit are arranged on the circuit board, a touch control operation area is arranged on the outer surface of the support, a touch control sensing element electrically connected with the controller is arranged in the position, corresponding to the touch control operation area, in the support, the touch control sensing element is used for detecting touch control operation received by the touch control operation area, and the controller controls the fan to be opened or closed according to the touch control operation and/or adjusts the rotating speed of the fan.

Furthermore, the driving circuit comprises a power switch circuit connected with the controller, the touch sensing element is used for acquiring touch operation data of the touch operation area and sending the touch operation data to the controller, and the controller controls the power switch circuit to be switched on or switched off according to the touch operation data;

or the driving circuit comprises a speed regulating circuit connected with the controller and a driving device connected with the speed regulating circuit, the touch sensing element is used for acquiring touch operation data of the touch operation area and sending the touch operation data to the controller, and the controller controls the speed regulating circuit to regulate the rotating speed of the driving device according to the touch operation data so as to control the rotating speed of the fan.

Further, the support is of a bilateral symmetry structure, and the thickness of the two ends of the support is smaller than that of the middle of the support.

The utility model has the advantages that: portable fan, which comprises a bracket, first fan and second fan, be equipped with in the support and be used for holding the first chamber that holds of first fan and be used for holding the second chamber that holds of second fan, the axis of rotation of first fan is 5 to 90 with the contained angle that the axis of rotation of second fan becomes, the support is equipped with first air intake, the second air intake, first air outlet and second air outlet, first air intake and first air outlet all hold the chamber with first and be linked together, second air intake and second air outlet all hold the chamber with the second and be linked together. The included angle formed by the rotation axes of the two fans is set to be 5-90 degrees, so that the whole portable fan can be made into different thicknesses or different shapes to adapt to the shell designs with different thicknesses and different shapes, and the diversified design of the portable fan on the shell is facilitated.

Drawings

Fig. 1 is a schematic structural diagram of a portable fan according to the present invention;

FIG. 2 is a schematic cross-sectional view of the portable fan of the present invention;

fig. 3 is one of the schematic split structural diagrams of the portable fan of the present invention;

fig. 4 is a second schematic view of the detachable structure of the portable fan of the present invention.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the objects of the present invention, the following detailed description is made in conjunction with the accompanying drawings and preferred embodiments for the specific embodiments, structures, features and effects of the portable fan according to the present invention as follows:

fig. 1 is a schematic structural view of the portable fan, fig. 2 is a schematic structural view of a cross section of the portable fan, fig. 3 is one of the structural views of the split of the portable fan, and fig. 4 is a second structural view of the split of the portable fan.

As shown in fig. 1 to 4, the utility model provides a portable fan, including support 10, first fan 21 and second fan 22, be equipped with in the support 10 and be used for holding the first chamber 101 that holds of first fan 21 and be used for holding the second chamber 102 that holds of second fan 22, the contained angle that the rotation axis of first fan 21 becomes with the rotation axis of second fan 22 is 5 to 90 °, and the contained angle that two out-of-plane straight lines of rotation axis of first fan 21 and the rotation axis of second fan 22 become is 5 to 90. The bracket 10 is provided with a first air inlet 111, a second air inlet 112, a first air outlet 121 and a second air outlet 122, wherein the first air inlet 111 and the first air outlet 121 are both communicated with the first accommodating cavity 101, and the second air inlet 112 and the second air outlet 122 are both communicated with the second accommodating cavity 102. Preferably, the rotation axis of the first fan 21 is perpendicular to the rotation axis of the second fan 22, so that the positions of the bracket 10 corresponding to the first fan 21 and the second fan 22 can be designed to have different thicknesses or different shapes.

In this embodiment, the rotation axis of the first fan 21 is vertically arranged, the rotation axis of the second fan 22 is horizontally arranged, and preferably, the first fan 21 and the second fan 22 are both turbo fans. The first air inlet 111 is arranged on the support 10 at a position corresponding to the first fan 21, the first air inlet 111 is arranged on the upper side wall of the support 10, the second air inlet 112 is arranged on the support 10 at a position corresponding to the second fan 22, and the second air inlet 112 is arranged on the left and right side walls of the support 10. Of course, the angle between the rotation axis of the first fan 21 and the rotation axis of the second fan 22 may also be 15 °, 45 °, 60 °, so that the fans are better placed corresponding to the wind tunnel.

In this embodiment, the number of first fan 21 and second fan 22 is two, and support 10 is bilateral symmetry formula structure, and support 10 is C or U font on the whole to with the radian looks adaptation of human neck, two first fans 21 set up the both ends at support 10, and two second fans 22 set up the middle part at support 10, and the thickness at support 10 both ends is less than the thickness in support 10 middle part.

Further, a first air guide 131 and a second air guide 132 are arranged in the support 10, the first air guide 131 is arranged in the first accommodating cavity 101 and divides the first accommodating cavity 101 into a first air duct 141 and a first accommodating cavity 151, the second air guide 132 is arranged in the second accommodating cavity 102 and divides the second accommodating cavity 102 into a second air duct 142 and a second accommodating cavity 152, air generated by the operation of the first fan 21 is blown out from the first air outlet 121 through the first air duct 141, and air generated by the operation of the second fan 22 is blown out from the second air outlet 122 through the second air duct 142.

Further, the first air duct 141 becomes gradually smaller from the end close to the first fan 21 to the end far from the first fan 21, and the second air duct 142 becomes gradually smaller from the end close to the second fan 22 to the end far from the second fan 22. The wind force at the ends of the first and second wind paths 141 and 142 is strengthened.

In this embodiment, the first air outlet 121 is disposed on the left and right sides of the bracket 10, the first air duct 141 includes a left air duct 141a and a right air duct 141b, the left air duct 141a and the right air duct 141b are disposed on the left and right sides of the first accommodating cavity 151, and the cross section of the first air guide 131 is in a V-shaped structure. The left air duct 141a is communicated with the first air outlet 121 positioned on the left side of the bracket 10, and the left air duct 141a guides part of air volume generated by the first fan 21 to the first air outlet 121 positioned on the left side of the bracket 10; the right air duct 141b is communicated with the first air outlet 121 located on the right side of the bracket 10, and the right air duct 141b guides a part of air volume generated by the first fan 21 to the first air outlet 121 located on the right side of the bracket 10. Preferably, the first air outlet 121 is respectively disposed on the left and right sidewalls of the bracket, and the width of the first air outlet 121 is gradually wider toward the first fan 21. The first air outlet 121 may also include a plurality of through holes, and the aperture of the through hole near one end of the first fan 21 is larger than the aperture of the through hole far away from one end of the first fan 21. That is, the aperture closer to the through hole of the first fan 21 is larger, and the aperture farther from the through hole of the first fan 21 is smaller, so as to increase the wind speed farther from the through hole of the first fan 21.

In other embodiments, the first air outlet 121 may also be disposed at the left side of the bracket 10, and correspondingly, the first air duct 141 includes a left air duct 141a, and the left air duct 141a or the right air duct 141b is located at the left side of the first accommodating cavity 151; or the first air outlet 121 is disposed at the right side of the bracket 10, the first air duct 141 includes a right air duct 141b, and the right air duct 141b is located at the right side of the first accommodating cavity 151.

Further, the second air outlet 122 is disposed at the upper side and the lower side of the bracket 10, the second air duct 142 includes an upper air duct 142a and a lower air duct 142b, the upper air duct 142a and the lower air duct 142b are located at the upper side and the lower side of the second accommodating cavity 152, and the longitudinal section of the second air guide 132 is in a V-shaped structure. The upper air duct 142a is communicated with the second air outlet 122 located at the upper side of the bracket 10, and the upper air duct 142a guides part of the air volume generated by the second fan 22 to the second air outlet 122 located at the upper side of the bracket 10; the lower duct 142b is communicated with the second air outlet 122 located at the lower side of the rack 10, and the lower duct 142b guides a part of the air volume generated by the second fan 22 to the second air outlet 122 located at the lower side of the rack 10. Preferably, the second air outlet 122 is respectively disposed on the upper and lower sidewalls of the bracket, and the width of the second air outlet 122 is gradually wider toward the second fan 22. The second outlet 122 may also include a plurality of through holes, and the diameter of the through hole near one end of the second fan 22 is larger than the diameter of the through hole far away from one end of the second fan 22. That is, the closer to the through hole of the second fan 22, the larger the aperture, the farther from the through hole of the second fan 22, the smaller the aperture, so as to increase the wind speed at the position farther from the through hole of the second fan 22.

Further, the portable fan further includes a battery 30, the battery 30 is accommodated in the first accommodating chamber 151 or/and the second accommodating chamber 152, and the battery 30 is used for supplying power to the first fan 21 and the second fan 22. In this embodiment, the battery 30 is accommodated in the first accommodating chamber 151.

Further, the portable fan further includes a circuit board 40 and a switch button 50, the circuit board 40 is disposed in the first accommodating cavity 151 or/and the second accommodating cavity 152 and electrically connected to the first blower 21 and the second blower 22, respectively, in this embodiment, the circuit board 40 is disposed in the first accommodating cavity 151, the switch button 50 is electrically connected to the circuit board 40, and one end of the switch button 50 passes through the lower sidewall of the bracket 10 and is exposed from the lower sidewall of the bracket 10. The switch button 50 is used for controlling the on/off of the first fan 21 and the second fan 22 and the wind speed. In this embodiment, the neck hanging fan is further provided with an indicator light, a charging interface (not shown), and the like, which are not described herein again.

Specifically, the circuit board 40 is provided with a driving circuit and a controller connected to the driving circuit, the outer surface of the support 10 is provided with a touch operation area, a touch sensing element electrically connected to the controller is disposed at a position corresponding to the touch operation area in the support 10, the touch sensing element is used for detecting a touch operation received by the touch operation area, and the controller controls the fan 20 to be turned on or off and/or adjusts the rotation speed of the fan 20 according to the touch operation.

The driving circuit comprises a power supply switching circuit connected with the controller, the touch sensing element is used for acquiring touch operation data of a touch operation area and sending the touch operation data to the controller, and the controller controls the power supply switching circuit to be switched on or switched off according to the touch operation data; or the driving circuit comprises a speed regulating circuit connected with the controller and a driving device connected with the speed regulating circuit, the touch sensing element is used for acquiring touch operation data of a touch operation area and sending the touch operation data to the controller, and the controller controls the speed regulating circuit to regulate the rotating speed of the driving device according to the touch operation data so as to control the rotating speed of the fan 20.

In this document, the terms of upper, lower, left, right, front, rear and the like are used to define the positions of the structures in the drawings and the positions of the structures relative to each other, and are only used for the sake of clarity and convenience in technical solution. It is to be understood that the use of the directional terms should not be taken to limit the scope of the claims. It is also to be understood that the terms "first" and "second," etc., are used herein for descriptive purposes only and are not to be construed as limiting in number or order.

The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above description in any form, and although the present invention has been disclosed with the preferred embodiment, it is not limited to the present invention, and any skilled person in the art can make some changes or modifications within the technical scope of the present invention without departing from the technical scope of the present invention, and the technical contents of the above disclosure can be utilized to make equivalent embodiments, but the technical contents of the present invention are not broken away from, and any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention all still belong to the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides a portable fan, characterized in that, including support (10), first fan (21) and second fan (22), be equipped with in this support (10) and be used for holding first chamber (101) and the second chamber (102) that holds that is used for holding this second fan (22) of holding of this first fan (21), the axis of rotation of this first fan (21) and the axis of rotation of this second fan (22) become the contained angle and be 5 ~ 90, this support (10) are equipped with first air intake (111), second air intake (112), first air outlet (121) and second air outlet (122), this first air intake (111) and this first air outlet (121) all are linked together with this first chamber (101) that holds, this second air intake (112) and this second air outlet (122) all are linked together with this second chamber (102) of holding.

2. The portable fan according to claim 1, characterized in that the angle between the rotation axis of the first fan (21) and the rotation axis of the second fan (22) is 15 °, 45 °, 60 ° or 90 °; and/or be equipped with first wind guide (131) and second wind guide (132) in this support (10), this first wind guide (131) are located and are separated in this first chamber (101) and form first wind channel (141), this second wind guide (132) are located and are separated in this second chamber (102) and form second wind channel (142), the wind that this first fan (21) operation produced blows off from this first air outlet (121) behind this first wind channel (141), the wind that this second fan (22) operation produced blows off from this second air outlet (122) behind this second wind channel (142).

3. The portable fan as claimed in claim 2, wherein the first air duct (141) is tapered from an end close to the first fan (21) to an end away from the first fan (21), and the second air duct (142) is tapered from an end close to the second fan (22) to an end away from the second fan (22).

4. The portable fan according to claim 2, wherein the first air outlet (121) is disposed at a left side and/or a right side of the bracket (10), the first air duct (141) includes a left air duct (141a) and/or a right air duct (141b), the left air duct (141a) is communicated with the first air outlet (121) at the left side of the bracket (10), and the right air duct (141b) is communicated with the first air outlet (121) at the right side of the bracket (10).

5. The portable fan according to claim 2 or 4, wherein the second air outlet (122) is disposed at upper and lower sides of the bracket (10), the second air duct (142) includes an upper air duct (142a) and a lower air duct (142b), the upper air duct (142a) is communicated with the second air outlet (122) located at an upper side of the bracket (10), and the lower air duct (142b) is communicated with the second air outlet (122) located at a lower side of the bracket (10).

6. The portable fan as claimed in claim 2, wherein the first wind guide (131) further partitions the first receiving cavity (101) to form a first receiving cavity (151), and the second wind guide (132) further partitions the second receiving cavity (102) to form a second receiving cavity (152).

7. The portable fan according to claim 6, further comprising a battery (30), wherein the battery (30) is accommodated in the first accommodating chamber (151) or/and the second accommodating chamber (152), and the battery (30) is used for supplying power to the first blower (21) and the second blower (22).

8. The portable fan according to claim 6, further comprising a circuit board (40), wherein the circuit board (40) is disposed in the first receiving cavity (151) or/and the second receiving cavity (152) and electrically connected to the first blower (21) and the second blower (22), respectively, the circuit board (40) is provided with a driving circuit and a controller connected to the driving circuit, the outer surface of the bracket (10) is provided with a touch operation area, a touch sensing element electrically connected to the controller is disposed in the bracket (10) at a position corresponding to the touch operation area, and the touch sensing element is configured to detect a touch operation received by the touch operation area, and the controller controls the fan (20) to be turned on or off according to the touch operation and/or adjusts the rotation speed of the fan (20).

9. The portable fan as claimed in claim 8, wherein the driving circuit comprises a power switch circuit connected to the controller, the touch sensing device is configured to obtain touch operation data of the touch operation area and send the touch operation data to the controller, and the controller controls the power switch circuit to be turned on or off according to the touch operation data;

or the driving circuit comprises a speed regulating circuit connected with the controller and a driving device connected with the speed regulating circuit, the touch sensing element is used for acquiring touch operation data of the touch operation area and sending the touch operation data to the controller, and the controller controls the speed regulating circuit to regulate the rotating speed of the driving device according to the touch operation data so as to control the rotating speed of the fan (20).

10. The portable fan as claimed in claim 1, wherein the supporter (10) has a bilaterally symmetrical structure, and the thickness of both ends of the supporter (10) is smaller than that of the middle portion of the supporter (10).