CN210440257U

CN210440257U - Portable fan with good heat dispersion

Info

Publication number: CN210440257U
Application number: CN201921359832.7U
Authority: CN
Inventors: 李向华
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-08-20
Filing date: 2019-08-20
Publication date: 2020-05-01
Anticipated expiration: 2029-08-20

Abstract

The utility model discloses a portable fan with good heat dissipation performance, which comprises a shell, wherein a centrifugal fan and a battery for providing power for the centrifugal fan are arranged in the shell, and the front surface and the back surface of the shell are respectively provided with an air outlet and an air inlet which are just opposite to the centrifugal fan; a plurality of air outlet holes and a plurality of air inlet holes are formed; a heat conducting through hole is arranged on the front surface, and a heat conducting sheet is arranged in the heat conducting through hole; the front surface is also fixedly provided with a radiating fin which is covered on the heat conducting fin and a part of the air outlet; the two end faces of the heat conducting fin are respectively contacted with the battery and the radiating fin. The utility model discloses a thereby set up conducting strip and fin and can help the better heat dissipation of battery, moreover, because the fin only covers and establishes partly exhaust vent to make the exhaust vent can take away partly heat messenger battery on the fin and can dispel the heat faster better when the air-out, and the fin can not influence the holistic air-out of portable fan yet.

Description

Portable fan with good heat dispersion

Technical Field

The utility model relates to a fan technical field specifically relates to a portable fan with good heat dispersion.

Background

In hot summer, people usually use a fan to cool and relieve summer heat, such as a portable fan, which has the advantage of being convenient to carry due to its small size. However, since the portable fans are provided with batteries for providing power, the current manufacturers generally simply dissipate heat of the batteries, which cannot achieve good heat dissipation effect, so that the service life of the batteries is greatly shortened; in addition, when the heat generated by the battery is not effectively released, the heat generated by the battery can affect the shell of the portable fan, so that the shell is heated, and the touch feeling of a user is further affected.

SUMMERY OF THE UTILITY MODEL

To the problem that prior art exists above, the utility model aims at providing a portable fan with good heat dispersion, its simple structure is reasonable, elegant appearance and small, still has good heat dispersion simultaneously for the life of battery obtains the extension.

In order to realize the purpose, the technical scheme of the utility model is that:

a portable fan with good heat dissipation performance comprises a shell, wherein a centrifugal fan and a battery for supplying power to the centrifugal fan are arranged in the shell, and an air outlet and an air inlet which are opposite to the centrifugal fan are respectively arranged on the front surface and the back surface of the shell; the air outlet holes and the air inlet holes are provided in plurality; a heat conducting through hole is arranged on the front surface, and a heat conducting sheet is arranged in the heat conducting through hole; the front surface is also fixedly provided with a radiating fin which is covered on the heat conducting fin and a part of the air outlet; two end faces of the heat-conducting fin are respectively contacted with the battery and the radiating fin.

As a specific embodiment, the air outlet hole and the air inlet hole are both pentagonal.

As a specific example, the area of the heat sink is larger than the area of the heat conductive sheet.

As a specific example, the heat sink is

Molding; the bent parts at the two sides of the radiating fin are fixed on the two side edges of the shell.

Further, a mounting position for mounting the heat sink is recessed inwards at the upper end of the shell, and the heat sink is mounted in the mounting position; the heat conduction through hole and the part of the air outlet covered by the radiating fin are both positioned in the mounting position.

Further, the thickness of the heat sink is equal to the depth of the mounting location.

Further, the mounting position is

Molding; the mounting positions extend from the front face to two side edges of the shell.

As a specific embodiment, a switch for controlling the start and stop of the centrifugal fan is further arranged at the top of the casing.

As a specific embodiment, the shell comprises a first shell and a second shell which are detachably connected.

Furthermore, a clamping column is arranged in the first shell, and a clamping hole matched with the clamping column is arranged in the second shell; the exhaust vent, the heat conduction through hole and the radiating fin are all arranged on the first shell.

The utility model has the advantages that:

thereby can help the better heat dissipation of battery through setting up conducting strip and fin, moreover, because the fin only covers establishes partly exhaust vent to make the exhaust vent can take away partly heat on the fin and make the battery can dispel the heat faster better when the air-out, and the fin can not influence the holistic air-out of portable fan yet. Therefore, the utility model discloses can carry out fine heat dissipation to portable fan's battery to the life of battery has been prolonged, portable fan's life has also been prolonged.

Drawings

Fig. 1 is an exploded view of the present invention;

fig. 2 is a schematic view of the overall structure of the present invention;

fig. 3 is a schematic view of the overall structure of the present invention;

fig. 4 is a schematic structural diagram of the first housing of the present invention.

Reference numerals:

1. a housing; 101. a first housing; 1011. a position clamping column; 102. a second housing; 1021. a position clamping hole; 11. a front side; 111. an air outlet; 112. a thermally conductive via; 12. a back side; 121. an air inlet hole; 2. a centrifugal fan; 3. a battery; 4. a heat conductive sheet; 5. a heat sink; 6. an installation position; 7. and (4) switching.

Detailed Description

The invention will be further elucidated with reference to the drawings and the embodiments, which are exemplary only and do not limit the scope of the invention.

As shown in fig. 1-4, a portable fan with good heat dissipation performance comprises a casing 1, a centrifugal fan 2 and a battery 3 for supplying power to the centrifugal fan 2 are arranged in the casing 1, and an air outlet 111 and an air inlet 121 which are opposite to the centrifugal fan 2 are respectively arranged on a front surface 11 and a back surface 12 of the casing 1; a plurality of air outlet holes 111 and a plurality of air inlet holes 121 are arranged; a heat conducting through hole 112 is formed on the front surface 11, a heat conducting sheet 4 is arranged in the heat conducting through hole 112, and in the embodiment, the heat conducting through hole 112 is also sleeved on the battery 3; a heat radiating fin 5 is fixedly arranged on the front surface 11, and the heat radiating fin 5 covers the heat conducting fin 4 and the air outlet 111 of one part; both end surfaces of the heat conductive sheet 4 are in contact with the battery 3 and the heat sink 4, respectively. Preferably, the heat sink 5 may be fixed on the housing 1 by gluing, or may be fixed on the housing 1 by screws, which will not be described in detail herein. Preferably, in order to allow the thermally conductive sheet 4 to be better fixed in the thermally conductive through-hole 112, the length and width of the thermally conductive sheet 4 may be set to be equal to those of the thermally conductive through-hole 112. The heat conducting fins 4 and the radiating fins 5 are arranged, so that the battery 3 can be better radiated, and the radiating fins 5 only cover a part of the air outlet holes 111, so that the air outlet holes 111 can take away a part of heat on the radiating fins 5 during air outlet, so that the battery 3 can be faster and better radiated, and the radiating fins 5 cannot influence the integral air outlet of the portable fan; of course, the above arrangement is premised on the fact that the covered air outlet holes 111 are capable of receiving the air blown by the centrifugal fan 2.

Wherein, the air outlet 111 and the air inlet 121 are pentagonal.

The area of the heat sink 5 is larger than that of the heat conductive sheet 4, so that the heat conductive sheet 4 can be in full contact with the heat sink 5, and the heat dissipation speed is increased.

The heat sink 5 is

Molding; the bent parts at two sides of the radiating fin 5 are fixed on two side edges of the shell 1. The upper end of the shell 1 is inwards sunken with a mounting position 6 for mounting the radiating fin 5, and the radiating fin 5 is mounted in the mounting position 6; the heat conducting through holes 112 and the part of the air outlet 111 covered by the heat sink 5 are located in the mounting position 6. The thickness of the heat sink 5 is equal to the depth of the mounting location 6. The mounting position 6 is

A profile, i.e. corresponding to the shape of the heat sink 5; the mounting locations 6 extend from the front 11 to both sides of the housing 1. The heat radiation area of the heat radiation fins 5 can be increased by the above arrangement, thereby enabling the battery 3 to radiate heat more quickly.

A switch 7 for controlling the start and stop of the centrifugal fan 2 is also arranged at the top of the shell 1.

The shell 1 comprises a first shell 101 and a second shell 102 which are detachably connected; specifically, a clamping column 1011 is arranged in the first shell 101, and a clamping hole 1021 matched with the clamping column 1011 is arranged in the second shell 102; a plurality of clamping columns 1011 and clamping holes 1021 are arranged; the air outlet 111, the heat conducting through hole 112 and the heat sink 5 are disposed on the first housing 101. The housing 1 can be mounted and dismounted better by the above arrangement.

The present invention is not limited to the above embodiment, and if various modifications or variations of the present invention do not depart from the spirit and scope of the present invention, they are intended to be covered if they fall within the scope of the claims and the equivalent technology of the present invention.

Claims

1. A portable fan with good heat dissipation performance comprises a shell, wherein a centrifugal fan and a battery for supplying power to the centrifugal fan are arranged in the shell, and an air outlet and an air inlet which are right opposite to the centrifugal fan are respectively arranged on the front surface and the back surface of the shell, and the portable fan is characterized in that:

the air outlet holes and the air inlet holes are provided in plurality; a heat conducting through hole is arranged on the front surface, and a heat conducting sheet is arranged in the heat conducting through hole; the front surface is also fixedly provided with a radiating fin which is covered on the heat conducting fin and a part of the air outlet; two end faces of the heat-conducting fin are respectively contacted with the battery and the radiating fin.

2. The portable fan with good heat dissipation performance as claimed in claim 1, wherein:

the air outlet hole and the air inlet hole are both pentagonal.

3. The portable fan with good heat dissipation performance as claimed in claim 1, wherein:

the area of the radiating fin is larger than that of the heat conducting fin.

4. The portable fan with good heat dissipation performance as claimed in claim 1, wherein:

the radiating fin is

5. The portable fan with good heat dissipation performance as claimed in claim 4, wherein:

the upper end of the shell is inwards sunken with a mounting position for mounting the radiating fin, and the radiating fin is mounted in the mounting position; the heat conduction through hole and the part of the air outlet covered by the radiating fin are both positioned in the mounting position.

6. The portable fan with good heat dissipation performance as claimed in claim 5, wherein:

the thickness of the radiating fin is equal to the depth of the mounting position.

7. The portable fan with good heat dissipation performance as claimed in claim 5, wherein:

the mounting position is

8. The portable fan with good heat dissipation performance as claimed in claim 1, wherein:

and a switch for controlling the starting and stopping of the centrifugal fan is also arranged at the top of the shell.

9. The portable fan with good heat dissipation performance as claimed in claim 1, wherein:

the shell comprises a first shell and a second shell which are detachably connected.

10. The portable fan with good heat dissipation performance as claimed in claim 9, wherein:

a clamping column is arranged in the first shell, and a clamping hole matched with the clamping column is arranged in the second shell; the exhaust vent, the heat conduction through hole and the radiating fin are all arranged on the first shell.