CN211288145U

CN211288145U - Hand-held mini fan

Info

Publication number: CN211288145U
Application number: CN201921836871.1U
Authority: CN
Inventors: 叶健
Original assignee: Dongguan Shijin Industrial Co ltd
Current assignee: Dongguan Shijin Industrial Co ltd
Priority date: 2019-10-30
Filing date: 2019-10-30
Publication date: 2020-08-18
Anticipated expiration: 2029-10-30

Abstract

The utility model discloses a handheld mini-type fan, which comprises a shell, a PCBA component, a motor and fan blades; the upper end of the shell is internally provided with an air cavity, the front side surface of the upper end of the shell is provided with a plurality of air outlet holes communicated with the air cavity, the rear side surface of the upper end of the shell is provided with a plurality of air inlet holes communicated with the air cavity, the lower end of the shell is a handheld part, and an installation cavity is formed in the handheld part; the PCBA component is arranged in the mounting cavity; the motor is fixed in the air cavity and is in conduction connection with the PCBA component; the fan blade is fixed on the output shaft of the motor and is opposite to the air outlet holes. Through being provided with handheld portion, this product can be handheld and use, also can place and use on the desktop, and it is nimble convenient to use to the cooperation sets up a plurality of exhaust vents and fresh air inlet, makes the fan leaf obtain fine protection, prevents that the fan leaf from moving in-process touching foreign matter, and the protection finger is not hurt, and the security is better.

Description

Hand-held mini fan

Technical Field

The utility model belongs to the technical field of the fan technique and specifically relates to indicate a mini fan of hand-held type.

Background

In order to enable the electric fan which is a comfortable cooling tool to serve people anytime and anywhere, a battery is additionally arranged on the traditional fan by a plurality of electrical appliance manufacturers, the use place of the traditional fan is not restricted by a mains supply power grid line, and the battery carried by the traditional fan provides electric energy. The progress advances the portability of the electric fan, but the body which is too large and heavy still cannot be carried about. Therefore, the fan is further improved, the size is reduced, the weight is reduced, and finally, a battery-powered mini electric fan with a reduced size is produced, so that the portable requirement is met to a certain extent, and flowers bloom all over the time. Portable fans of this type are on the market.

Most of the fan blades of the conventional portable fan are completely exposed, so that foreign matters are touched in the operation process of the fan blades, fingers are easily injured, the safety performance is poor, and the portable fan is inconvenient to use. Therefore, there is a need for improvements to current portable fans.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention is directed to a portable fan, which can effectively solve the problems of poor safety and inconvenient use of the portable fan.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a handheld mini-type fan comprises a shell, a PCBA component, a motor and fan blades; the upper end of the shell is internally provided with an air cavity, the front side surface of the upper end of the shell is provided with a plurality of air outlet holes communicated with the air cavity, the rear side surface of the upper end of the shell is provided with a plurality of air inlet holes communicated with the air cavity, the lower end of the shell is a handheld part, and an installation cavity is formed in the handheld part; the PCBA component is arranged in the mounting cavity; the motor is fixed in the air cavity and is in conduction connection with the PCBA component; the fan blade is fixed on the output shaft of the motor and is opposite to the air outlet holes.

Preferably, the shell is formed by buckling and assembling a front shell and a rear shell, the air outlet is located on the front shell, and the air inlet is located on the rear shell.

Preferably, the front shell and the rear shell are both made of ABS material.

Preferably, the PCBA assembly has a USB port thereon, the USB port being exposed from the housing.

Preferably, a rechargeable battery is further arranged in the mounting cavity, the rechargeable battery is in conduction connection with the PCBA assembly, and the capacity of the rechargeable battery is 800 Mah.

Preferably, the fan blade is made of PP material and is a seven-blade curved surface fan blade.

Preferably, the air inlet hole and the air outlet hole are both of 15-degree oblique cyclone structures.

Compared with the prior art, the utility model obvious advantage and beneficial effect have, particularly, can know by above-mentioned technical scheme:

through being provided with handheld portion, this product can be handheld and use, also can place and use on the desktop, and it is nimble convenient to use to the cooperation sets up a plurality of exhaust vents and fresh air inlet, makes the fan leaf obtain fine protection, prevents that the fan leaf from moving in-process touching foreign matter, and the protection finger is not hurt, and the security is better.

To more clearly illustrate the structural features and functions of the present invention, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments:

drawings

FIG. 1 is a front view of a preferred embodiment of the present invention;

FIG. 2 is a top view of the preferred embodiment of the present invention;

fig. 3 is an exploded view of the preferred embodiment of the present invention.

The attached drawings indicate the following:

10. outer casing 11, front casing

12. Rear shell 101, wind cavity

102. Air outlet 103 and air inlet

104. Hand-held part 105 and mounting cavity

106. Hang rope hole 20, PCBA subassembly

21. USB interface 30 and motor

40. Fan blade

Detailed Description

Referring to fig. 1 to 3, the detailed structure of the preferred embodiment of the present invention is shown, which includes a housing 10, a PCBA assembly 20, a motor 30 and a fan blade 40.

An air cavity 101 is formed in the upper end of the shell 10, a plurality of air outlet holes 102 communicated with the air cavity 101 are formed in the front side face of the upper end of the shell 10, a plurality of air inlet holes 103 communicated with the air cavity 101 are formed in the rear side face of the upper end of the shell 10, the lower end of the shell 10 is a handheld part 104, and a mounting cavity 105 is formed in the handheld part 104; in this embodiment, the housing 10 is formed by fastening and assembling a front housing 11 and a rear housing 12, an air outlet 102 is located on the front housing 11, an air inlet 103 is located on the rear housing 12, the front housing 11 and the rear housing 12 are both made of ABS material, and the air inlet 103 and the air outlet 102 are both 15 ° oblique cyclone structures, forming a spiral air outlet channel, and bringing a refreshing experience like natural wind; and the bottom of the shell 10 is provided with a rope hanging hole 106, so that the product can be hung on a wrist conveniently through a hanging rope, and the shell is suitable for various scenes such as shopping and walking, going to school and work, outdoor activities, sports and fitness and the like.

The PCBA component 20 is disposed in the mounting cavity 105; in the present embodiment, the PCBA assembly 20 has a USB interface 21 thereon, and the USB interface 21 is exposed out of the housing 10 for connecting with an external mobile power source for supplying power.

The motor 30 is fixed in the air cavity 101, and the motor 30 is in conductive connection with the PCBA component 20; the fan blade 40 is fixed on the output shaft of the motor 30 and faces the air outlet holes 102, in this embodiment, the fan blade 40 is made of PP material, and is a seven-blade curved fan blade, and cuts air flow intensively and uniformly.

And, the mounting cavity 105 is further provided with a rechargeable battery (not shown), the rechargeable battery is in conductive connection with the PCBA component 20, the capacity of the rechargeable battery is 800Mah, the rechargeable battery can be charged rapidly, and the minimum wind speed can be used for 4 hours.

Detailed description the working principle of the present embodiment is as follows:

when the electric fan is used, the hand-held part 104 is held by hands, after the motor 30 is powered on, the motor 30 is started to drive the fan blade 40 to rotate, air enters the air cavity 101 from the plurality of air inlet holes 103 under the rotation action of the fan blade 40, and then airflow is formed and blown out from the plurality of air outlet holes 102.

The utility model discloses a design key is: through being provided with handheld portion, this product can be handheld and use, also can place and use on the desktop, and it is nimble convenient to use to the cooperation sets up a plurality of exhaust vents and fresh air inlet, makes the fan leaf obtain fine protection, prevents that the fan leaf from moving in-process touching foreign matter, and the protection finger is not hurt, and the security is better.

The technical principle of the present invention is described above with reference to specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without any inventive effort, which would fall within the scope of the present invention.

Claims

1. A hand-held mini fan, characterized in that: comprises a shell, a PCBA component, a motor and a fan blade; the upper end of the shell is internally provided with an air cavity, the front side surface of the upper end of the shell is provided with a plurality of air outlet holes communicated with the air cavity, the rear side surface of the upper end of the shell is provided with a plurality of air inlet holes communicated with the air cavity, the lower end of the shell is a handheld part, and an installation cavity is formed in the handheld part; the PCBA component is arranged in the mounting cavity; the motor is fixed in the air cavity and is in conduction connection with the PCBA component; the fan blade is fixed on the output shaft of the motor and is opposite to the air outlet holes.

2. The handheld mini fan as in claim 1, wherein: the shell is formed by assembling a front shell and a rear shell in a buckling mode, the air outlet hole is formed in the front shell, and the air inlet hole is formed in the rear shell.

3. The handheld mini fan as in claim 2, wherein: the front shell and the rear shell are made of ABS materials.

4. The handheld mini fan as in claim 1, wherein: the PCBA component is provided with a USB interface, and the USB interface is exposed out of the shell.

5. The handheld mini fan as in claim 1, wherein: the installation cavity is further internally provided with a rechargeable battery, the rechargeable battery is in conduction connection with the PCBA assembly, and the capacity of the rechargeable battery is 800 Mah.

6. The handheld mini fan as in claim 1, wherein: the fan blade is made of PP materials and is a seven-blade curved-surface fan blade.

7. The handheld mini fan as in claim 1, wherein: the air inlet hole and the air outlet hole are both of 15-degree oblique cyclone structures.