CN214788122U

CN214788122U - Air inlet shell structure of handheld fan and handheld fan

Info

Publication number: CN214788122U
Application number: CN202120736957.8U
Authority: CN
Inventors: 张民
Original assignee: Shenzhen City Star Ian Electronic Technology Co ltd
Current assignee: Shenzhen City Star Ian Electronic Technology Co ltd
Priority date: 2021-04-12
Filing date: 2021-04-12
Publication date: 2021-11-19
Anticipated expiration: 2031-04-12

Abstract

The utility model relates to a fan technical field specifically is an air inlet shell structure and handheld fan of handheld fan, and wherein air inlet shell structure includes air inlet shell body, and the intermediate position of air inlet shell body indent forms the depressed part, and the depressed part passes through the strengthening rib with air inlet shell body to be connected, forms annular air intake between depressed part and the air inlet shell body, is equipped with the first fresh air inlet of a plurality of on the depressed part, is equipped with a plurality of second fresh air inlet on the air inlet shell body. The air inlet of the utility model is an annular air inlet, a first air inlet hole and a second air inlet hole, compared with the air inlet of the traditional large grid, the air inlet efficiency is high, and the annular air inlet is arranged on the side surface of the step, which is a hidden design, thereby reducing the potential safety hazard in the use process; in addition, the hidden annular air inlet enables a user not to see the fan blades on the back of the air inlet shell, and the attractiveness is high.

Description

Air inlet shell structure of handheld fan and handheld fan

Technical Field

The utility model relates to a fan technical field specifically is an air inlet shell structure and handheld fan of handheld fan.

Background

With the development of economy and technology, people have not limited the use of fans to large household non-portable electric fans, and handheld bladeless fans are gradually developed and applied to combat hot weather anytime and anywhere. The bladeless fan can generate natural and continuous cool wind, and the blades cannot be seen on the appearance, so that the bladeless fan is peculiar in shape, simple and attractive in appearance and popular with consumers; the bladeless fan is held by a hand, air is sucked into the fan through the electric motor, the air flow is accelerated through the unique air channel design in the handle, and then the air is blown out at a high speed through the air outlet of the bladeless fan head. However, the air inlet of the existing bladeless fan generally adopts a large grid structure, so that a large potential safety hazard exists, some small objects are easy to carelessly fall into the fan and are torn by the fan blades, such as hair of girls, and the like, so that the fan is damaged, and people and objects are torn or damaged, and the air inlet of the large grid structure influences attractiveness.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem in the above-mentioned background art, the utility model provides an air inlet shell structure and handheld fan of handheld fan, through the special design of air intake, make the air inlet efficiency highest, and annular air intake is hidden design, has reduced the potential safety hazard in the use on the one hand, and on the other hand makes the appearance of handheld fan more pleasing to the eye.

The utility model discloses an it is first purpose to provide an air inlet shell structure of handheld fan, including the air inlet shell body, the concave depression that forms in the intermediate position of air inlet shell body, the concave depression passes through the strengthening rib with the air inlet shell body to be connected, forms annular air intake between concave depression and the air inlet shell body, is equipped with the first fresh air inlet of a plurality of on the concave depression, is equipped with a plurality of second fresh air inlet on the air inlet shell body.

Furthermore, the first air inlet holes are circumferentially arranged at the positions, close to the annular air inlet, on the recessed portion, and the second air inlet holes are circumferentially arrayed at the positions, close to the annular air inlet, on the air inlet shell body.

Furthermore, the first air inlet hole and the second air inlet hole form a circular air inlet surface, and the circular air inlet is positioned in the middle of the circular air inlet surface.

Further, the depressed part is discoid, and air inlet shell body is the ring form, and the external diameter of depressed part equals the internal diameter of air inlet shell body, forms the step between depressed part and the air inlet shell body, and annular air intake is located the side of step.

Furthermore, the first air inlet holes, the second air inlet holes and the annular air inlet form an effective air inlet curved surface, and the effective air inlet curved surface is opposite to the rotating sweeping surface of the fan blades.

A second object of the present invention is to provide a handheld fan, which includes the air inlet casing structure of any one of the above mentioned handheld fans, and further includes an air outlet casing body, the air outlet casing body and the air inlet casing body are fastened to form a containing cavity, and a motor and a fan impeller are coaxially disposed in the containing cavity; the air outlet shell body comprises an annular shell and an air guide cover coaxially arranged with the annular shell, and an annular air outlet is formed between the annular shell and the air guide cover.

Furthermore, the outer end of the wind scooper is provided with a glass lens, the upper end of the wind outlet shell body is provided with a rotating shaft, the rotating shaft is rotatably connected with a protective cover, and the glass lens is positioned between the wind outlet shell body and the protective cover.

Further, an LED plate is arranged between the wind scooper and the glass lens, and a circular light guide ring is further arranged between the LED plate and the glass lens.

Further, a holistic lower extreme that air inlet shell body and air outlet shell body lock formed is the handle, and the tail end of handle is equipped with the handle tail-hood, is equipped with the button on the handle, and the button passes through the circuit on the circuit board to be connected with the motor electricity, and the circuit board inlays to be established in the inside of handle, and the inside battery that still is equipped with of handle, battery pass through the circuit on the circuit board and are connected with the motor electricity.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the air inlet on the air inlet shell structure of the handheld fan is an annular air inlet, a first air inlet hole and a second air inlet hole, compared with the air inlet of a traditional large grid, the air inlet efficiency is high, the annular air inlet is arranged on the side surface of the step, and the hidden design is adopted, so that the potential safety hazard in the use process is reduced; in addition, the hidden annular air inlet enables a user not to see the fan blades on the back of the air inlet shell, and the attractiveness is high.

(2) The annular air inlet on the air inlet shell structure of the handheld fan is positioned in the middle of the circular air inlet surface, and compared with other positions, the air inlet efficiency is highest; and the effective air inlet curved surface is arranged opposite to the rotating sweeping surface of the fan blades, so that the utilization rate of the air entering from the air inlet is highest.

(3) The utility model discloses a handheld fan has increased the glass lens in the outer end of wind scooper, and user's accessible glass lens is makeup, arrangement instrument etc. has increased the versatility of product.

(4) The utility model discloses a handheld fan installs circular light guiding ring between glass lens and LED board, has increased the aesthetic property of product and the imaging quality of glass lens.

Drawings

For a clearer explanation of the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a perspective view of an air inlet casing structure of a hand-held fan according to the present invention;

FIG. 2 is a schematic diagram of a hand-held fan according to the present invention;

FIG. 3 is a cross-sectional view of a hand held fan of the present invention;

wherein: 1-air inlet shell body, 2-sunken part, 3-reinforcing rib, 4-annular air inlet, 5-first air inlet hole, 6-second air inlet hole, 7-air outlet shell body, 8-motor, 9-fan impeller, 10-annular shell, 11-wind scooper, 12-annular air outlet, 13-glass lens, 14-rotating shaft, 15-protective cover, 16-LED plate, 17-circular light guide ring, 18-handle, 19-button, 20-circuit board and 21-battery.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the present application, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1, the utility model provides an air inlet shell structure of a handheld fan, which comprises an air inlet shell body 1, wherein a concave part 2 is formed in the middle position of the air inlet shell body 1, and the concave part 2 is fixedly connected with the air inlet shell body 1 through a plurality of reinforcing ribs 3, so that on one hand, the strength of the air inlet shell is improved, and on the other hand, a space is reserved for an annular air inlet 4; annular air intake 4 sets up between depressed part 2 and air inlet shell body 1, annular air intake 4 is located between a plurality of strengthening ribs promptly, be equipped with the first fresh air inlet 5 of a plurality of on the depressed part 2, first fresh air inlet 5 circumference array is on depressed part 2, be equipped with a plurality of second fresh air inlet 6 on the air

inlet shell body

1, 6 circumference arrays of second fresh air inlet are on air inlet shell body 1, the air intake includes first fresh air inlet 5, second fresh air inlet 6 and annular air intake 4, air inlet rate has been improved through seting up a plurality of air intakes.

Specifically, in this embodiment, the first air inlet holes 5 and the second air inlet holes 6 form a circular air inlet surface, that is, the first air inlet holes 5 are arranged on the concave portion in a circular array, the second air inlet holes 6 are arranged on the air inlet shell body in a circular array, and the first air inlet holes 5 and the second air inlet holes 6 are uniformly distributed at positions close to the annular air inlet; the first air inlet hole 5 and the second air inlet hole 6 are both small round holes or small holes with other shapes, and small objects and the like cannot enter the fan through the small round holes or the small holes with other shapes; preferably, the annular air inlet 4 in the embodiment is located in the middle of the circular air inlet surface, and the size of the annular air inlet 4 also ensures that small objects and user hairs cannot enter the annular air inlet, so that potential safety hazards are reduced; in other embodiments, the annular air inlet 4 may also be located at other positions of the annular air inlet surface, such as positions 1/4, 1/3, 3/4, 2/3 of the diameter of the annular air inlet surface, and the like, where the positions of the annular air inlets are different, and the air inlet effect is also different, and through a lot of experiments, when the annular air inlet 24 is located at the middle position of the annular air inlet surface, the air inlet effect is the best.

It is specific, depressed part 2 is discoid in this embodiment, air inlet shell body 1 is the ring form, the external diameter of depressed part 2 equals air inlet shell body 1's internal diameter, the up end of depressed part 2 is located the below of the lower terminal surface of air inlet shell body 1, make and form vertical step between depressed part 2 and the air inlet shell body 1, annular air intake 4 is seted up in the side of vertical step, the open position of annular air intake 4 is perpendicular with the axis of handheld fan promptly, see from the back of handheld fan, annular air intake 4 is in the state of being hidden, and aesthetic measure is higher, and in the difficult fan that gets into of hair etc. of small and medium-sized object and user in the use, greatly reduced the potential safety hazard in the use.

Specifically, in this embodiment, the first air inlet holes 5, the second air inlet holes 6, and the annular air inlet 4 together form an effective air inlet curved surface, natural air enters the fan from the air inlet on the effective air inlet curved surface, and in order to fully utilize the air entering the fan, the effective air inlet curved surface of this embodiment is arranged opposite to the rotating sweeping surface of the fan blades, so that the air entering the handheld fan through the effective air inlet curved surface is all blown out through the air outlet after being accelerated by the fan blades, and the utilization rate of the air volume is high.

The above-mentioned rotating swept surface of the fan blade is a circular ring surface swept by the fan blade rotating for one circle, and the projection of the effective air intake curved surface on the circular ring surface is approximately overlapped with the circular ring surface.

As shown in fig. 2 and 3, the utility model also provides a handheld fan, including the above-mentioned air inlet shell structure of handheld fan, use the air inlet shell structure on current handheld fan, the air inlet efficiency will improve greatly, has reduced the noise of product work moreover, has great market space.

Specifically, the air outlet casing comprises an air outlet casing body 7, the air outlet casing body 7 is buckled with the air inlet casing body 1 to form an accommodating cavity, and a motor 8 and a fan impeller 9 are coaxially arranged in the accommodating cavity; the air outlet casing body 7 comprises an annular outer casing 10 and an air guide cover 11 coaxially arranged with the annular outer casing 10, and an annular air outlet 12 is formed between the annular outer casing 10 and the air guide cover 11. The wind entering the fan through the air inlet is gathered at the annular air outlet 13, so that the air outlet speed is greatly improved, and the fan blades 9 are hidden in the air outlet shell body 7 when the front side of the fan is seen, so that the appearance is attractive.

Specifically, the outer end of the wind scooper 11 is provided with a glass lens 13, the upper end of the wind outlet casing body 7 is provided with a rotating shaft 14, the rotating shaft 14 is rotatably connected with a protective cover 15, and the glass lens 13 is located between the wind outlet casing body 7 and the protective cover 15. In practical application, when the glass lens 13 needs to be used, the protective cover 15 is rotated to expose the glass lens 13, and the handheld fan can be used for making up; when the glass lens 13 is not needed, the glass lens 13 is covered by the protective cover 15, so that the glass lens 13 is protected from being polluted and damaged.

Specifically, in order to improve the aesthetic property of the product and the imaging quality of the glass lens 6, an LED plate 16 is installed between the wind scooper 11 and the glass lens 13, and a circular light guide ring 17 is further installed between the LED plate 16 and the glass lens 13.

Specifically, the lower extreme of a holistic that air inlet shell body 7 and 1 lock of air-out shell body formed is handle 18, and the tail end of handle 18 is equipped with the handle tail-hood, is equipped with button 19 on the handle 18, and button 19 is connected with motor 8 electricity through the circuit on the circuit board 20, and circuit board 20 inlays the inside of establishing at handle 18, and handle 18 is inside still to be equipped with battery 21, and battery 21 passes through the circuit on the circuit board 20 and is connected with motor 8 electricity.

The present invention has been further described with reference to specific embodiments, but it should be understood that the specific description herein should not be construed as limiting the spirit and scope of the present invention, and that various modifications to the above-described embodiments, which would occur to persons skilled in the art after reading this specification, are within the scope of the present invention.

Claims

1. The utility model provides an air inlet shell structure of handheld fan, its characterized in that, includes the air inlet shell body, the concave depression that forms in the intermediate position of air inlet shell body, the depressed depression with the air inlet shell body passes through the strengthening rib and connects, the depressed depression with form annular air intake between the air inlet shell body, be equipped with the first fresh air inlet of a plurality of on the depressed depression, be equipped with a plurality of second fresh air inlet on the air inlet shell body.

2. The air inlet casing structure of the hand-held fan as claimed in claim 1, wherein the first air inlet holes are circumferentially arranged on the recessed portion at a position close to the annular air inlet, and the second air inlet holes are circumferentially arranged on the air inlet casing body at a position close to the annular air inlet.

3. The air inlet casing structure of the handheld fan as claimed in claim 1, wherein the first air inlet hole and the second air inlet hole form a circular air inlet surface, and the circular air inlet is located at a middle position of the circular air inlet surface.

4. The air inlet casing structure of the handheld fan as claimed in claim 2, wherein the recess is disc-shaped, the air inlet casing body is circular ring-shaped, an outer diameter of the recess is equal to an inner diameter of the air inlet casing body, a step is formed between the recess and the air inlet casing body, and the annular air inlet is located at a side of the step.

5. The air inlet casing structure of the handheld fan as claimed in claim 2, wherein the first air inlet holes, the second air inlet holes and the annular air inlet together form an effective air inlet curved surface, and the effective air inlet curved surface is disposed opposite to the rotating sweeping surface of the fan blades.

6. A handheld fan comprises the air inlet shell structure of the handheld fan as claimed in any one of claims 1 to 5, and is characterized by further comprising an air outlet shell body, wherein the air outlet shell body and the air inlet shell body are buckled to form an accommodating cavity, and a motor and a fan impeller are coaxially arranged in the accommodating cavity; the air outlet shell body comprises an annular shell and an air guide cover coaxially arranged with the annular shell, and an annular air outlet is formed between the annular shell and the air guide cover.

7. The handheld fan of claim 6, wherein a glass lens is disposed at an outer end of the wind scooper, a rotating shaft is disposed at an upper end of the wind outlet casing body, a protection cover is rotatably connected to the rotating shaft, and the glass lens is disposed between the wind outlet casing body and the protection cover.

8. The hand-held fan according to claim 7, wherein an LED plate is mounted between the wind scooper and the glass lens, and a circular light guide ring is further mounted between the LED plate and the glass lens.

9. The handheld fan according to claim 6, wherein a handle is provided at a lower end of the integrated body formed by the air inlet casing body and the air outlet casing body, a handle tail cover is provided at a tail end of the handle, a button is provided on the handle, the button is electrically connected to the motor through a circuit on the circuit board, the circuit board is embedded inside the handle, a battery is further provided inside the handle, and the battery is electrically connected to the motor through a circuit on the circuit board.