CN210371391U

CN210371391U - Rechargeable hidden fan type handheld fan

Info

Publication number: CN210371391U
Application number: CN201921041128.7U
Authority: CN
Inventors: 何宏开
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-03-29
Filing date: 2019-07-05
Publication date: 2020-04-21
Anticipated expiration: 2029-07-05

Abstract

The utility model relates to the technical field of fans, and discloses a rechargeable hidden-blade handheld fan, which comprises an air ring and a fan, wherein an air outlet of the fan is communicated with the air ring, an air channel is arranged in the air ring, and an air gap is arranged on the wall surface of the air ring; the fan also comprises a control part connected with the air ring, and the fan is arranged in the control part. The utility model is provided with the wind ring which hides the blades, realizes air supply through the wind ring, and avoids the risk of harm caused by the rotation of the fan blades; through setting up the air gap, controlled the direction of air-out, improved the intensity of air current air-out, still reduced the noise and the vibration that the fan produced, convenient to use experiences the degree well.

Description

Rechargeable hidden fan type handheld fan

Technical Field

The utility model relates to a fan technical field mainly relates to a hand-held type fan, especially relates to chargeable hidden fan blade formula hand-held fan.

Background

The fan plays an important role in improving the ambient sensible temperature as a tool for promoting air convection. In the life of people, the fan takes away the heat of a local environment by utilizing the characteristic of air convection, promotes the temperature reduction of a target environment and makes the experience of people more comfortable; because the fan does not use the air compressor machine, its cooling that brings is experienced and is more close to natural wind, because the fan does not use the compressor, so the energy consumption of fan is lower, can not cause environmental pollution yet, is accepted for vast consumers.

In actual life, people face a hot environment when going out, normal work and thinking of people are influenced, and the hand-held fan is often carried with oneself to provide the wind current for oneself so as to improve the comfort level. The conventional fan, whether handheld or not, generates convection air by the rotation of the fan blades, and the fan blades are directly exposed to the air. The fan with the structure has obvious defects, namely, the rotating fan blades have high danger and are easy to hurt people during rotation; secondly, the rotating blades generate noise and directly act on human ears, so that the dysphoria of people in a hot environment can be increased; thirdly, the vibration of the fan in the prior art is large, and the vibration acted on the hand when the fan is held by hand for use causes the hand numbness of people. The above defects are not beneficial to improving the comfort of human experience.

Therefore, the existing handheld fan has obvious defects, the fan blades of the existing handheld fan have certain risks and cause a large amount of noise and vibration, the existing handheld fan structure needs to be adjusted and optimized, a more reasonable technical scheme is provided, and the technical problems in the prior art are solved.

SUMMERY OF THE UTILITY MODEL

The utility model provides a but charging hides handheld fan of fan blade formula aims at hiding the flabellum of fan, supplies air through the structure of hiding the flabellum, when guaranteeing air supply efficiency, eliminates the flabellum and causes the hidden danger of injury to the human body to reduce the noise that the flabellum produced, improve human comfort level.

In order to realize the above effect, the utility model discloses the technical scheme who adopts does:

the rechargeable hidden fan blade type handheld fan comprises an air ring and a fan, wherein an air outlet of the fan is communicated with the air ring, an air channel is arranged in the air ring, and an air gap is formed in the wall surface of the air ring; the fan also comprises a control part connected with the air ring, and the fan is arranged in the control part.

The handheld fan can be used for being carried outside, air is supplied to the air ring through the fan, flowing air enters the air channel in the air ring and flows out of the air gap, and due to the fact that the width of the air gap is smaller than that of the air channel, when the air flows out of the air gap, the air is pressurized and accelerated, and flowing air flow is stronger.

Preferably, the direction of the air gap is the same direction, so that the experience degree of a user is improved conveniently.

Further, the width of the air gap determines the strength of the airflow when the airflow flows out, and the narrower the air gap is, the stronger the strength of the airflow is, and the larger the noise is; the wider the air gap, the less intense the air flow out with less noise. Reasonable parameters need to be set when the air flow intensity and the noise are controlled, and the noise and the intensity are controlled within a reasonable range, so that the air gap structure disclosed in the technical scheme is optimized, a specific and feasible selection is provided, and the width of the air gap is 1-4 mm.

Furthermore, the air flow enters the air duct from the fan and then flows along the air duct, and the air flow flows in the air duct and follows the characteristic of fluid flow, so that the air flow has loss and local loss in the air duct, and in order to reduce the two losses, especially the local loss, the air ring disclosed in the technical scheme is optimized.

Furthermore, the air gap is communicated with the air channel from the outer wall surface of the air ring, after the air flow in the air channel flows out from the air gap, the air flow corresponds to the direction according to the guide flow direction of the air gap, the air ring is in a natural environment at the outer side and has poor guidance performance on the air flow, and an annular inner space is arranged on the inner side wall surface of the air ring and has better guidance performance on the air flow, so that the air ring structure disclosed in the technical scheme is optimized as a feasible choice, the inner wall surface of the air ring is a conical surface, the inner wall surface extends to two end surfaces of the air ring to respectively form a front end air port and a rear end air port, and the diameter of the front end air port is smaller than that of the rear end air; the air gap is positioned at the front end air port, and the opening of the air gap faces to the rear end air port. The air flow flowing out of the air gap flows along the inner wall surface of the air ring, and the air flow has better guidance performance.

And further, the structure of the wind ring in the technical scheme is continuously optimized, and as a feasible option, the value of the conical half angle α of the inner wall surface is more than 0 degree and less than α and less than or equal to 30 degrees.

And further, the structure of the air ring in the technical scheme is continuously optimized, as a feasible option, the end face of the air ring where the rear-end air opening is located is a conical surface, and the value of the conical half angle β of the end face of the air ring is more than or equal to 100 degrees and less than β degrees and less than 180 degrees.

Furthermore, in order to continuously improve the guidance of the air gap to the air flow, the communication structure of the air gap and the air channel is optimized, and as a feasible option, the communication part of the air gap and the air channel is a smooth and smooth arc-shaped surface.

Further, the control part plays fixed effect to wind ring and fan, and when the fan was arranged in the wind ring, the fan passed through the control part air inlet, and is concrete, as feasible selection, the control part include the casing, the fan be located the casing, and be provided with the air inlet structure on the casing.

Preferably, in the specific use process, the control part can be used as a handheld handle, so that the carrying and the use are convenient.

Furthermore, a certain gap is kept between the air inlet of the fan and the inner wall surface of the shell so as to facilitate air inlet of the fan, and the gap kept between the air inlet of the fan and the shell is larger than 2mm under general conditions; in addition, the fan disclosed in the technical scheme is optimized, and as a feasible option, the fan is a forward-inclined centrifugal fan. Particularly, the forward inclined fan has small vibration relative to an axial flow fan, so that the operation is quieter; consequently the utility model discloses in the vibration that causes by the fan little with noise influence, promoted user's experience degree.

Still further, optimize the control division disclosed in the above-mentioned technical scheme, as feasible selection, be provided with battery and control switch in the control division, battery, control switch and fan connect electrically in proper order and form power supply control circuit.

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

1. the utility model discloses set up the wind ring of hiding the blade, realize the air feed through the wind ring, avoided the flabellum to rotate the risk that causes harm.

2. The utility model discloses the wind gap that sets up has controlled the direction of air-out, has improved the intensity of air current air-out, has still reduced the noise and the vibration that the fan produced, convenient to use, experience degree is good.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of the overall structure of a fan;

FIG. 2 is a schematic structural view of a wind ring and a fan;

FIG. 3 is a schematic cross-sectional view of a fan;

FIG. 4 is a perspective view of the fan and the airflow direction;

FIG. 5 is a schematic view of the internal structure and the airflow direction of the wind ring;

FIG. 6 is a schematic view of the inner wall surface of the wind ring and the end surface of the rear end tuyere.

In the above figures, the meaning of the reference numerals is: 1-wind ring; 2-a control section; 3-an air inlet structure; 4-a fan; 5-an air duct; 6-air gap.

Detailed Description

The present invention will be further explained with reference to the drawings and the embodiments.

Examples

As shown in fig. 1 to 6, the present embodiment discloses a rechargeable hidden-blade handheld fan, which includes an air ring 1 and a fan 4, an air outlet of the fan 4 is communicated with the air ring 1, an air duct 5 is arranged inside the air ring 1, and an air gap 6 is arranged on a wall surface of the air ring 1; the fan also comprises a control part 2 connected with the air ring 1, and the fan 4 is arranged in the control part 2.

The handheld fan can be used for being carried outside for use, air is supplied to the air ring 1 through the fan 4, flowing air enters the air channel 5 in the air ring 1 and flows out from the air gap 6, and due to the fact that the width of the air gap 6 is smaller than that of the air channel 5, when the air flows out from the air gap 6, the air is pressurized and accelerated, and flowing air flow is stronger.

In this embodiment, the wind ring 1 is made of plastic and is formed by oppositely fastening two parts.

Specifically, the orientations of the air gaps 6 are the same, so that the experience degree of a user is improved conveniently.

The width of the air gap 6 determines the strength of the airflow when the airflow flows out, and the narrower the air gap 6 is, the stronger the strength of the airflow is and the larger the noise is; the wider the air gap 6, the less intense the air flow out and the less noisy. Reasonable parameters need to be set when the air flow intensity and the noise are controlled, and the noise and the intensity are controlled within a reasonable range, so that the structure of the air gap 6 disclosed in the technical scheme is optimized, a specific and feasible selection is provided, and the width of the air gap 6 is 1-4 mm.

In the present embodiment, the width of the air gap 6 may be set to 1.5 mm.

The air ring 1 disclosed in the technical scheme is optimized to reduce two losses, particularly the local loss, because the air flow follows the characteristic of fluid flow after entering the air duct 5 from the fan 4, the air flow has the on-way loss and the local loss in the air duct 5, and the air ring 1 is a circular ring, the air duct 5 in the air ring 1 is a circular air duct 5, the air gap 6 is located on the inner wall surface of the air ring 1, and the air gap 6 is an annular gap.

The air gap 6 is communicated with the air duct 5 from the outer wall surface of the air ring 1, after air flow in the air duct 5 flows out from the air gap 6, the air flow corresponds to the direction according to the guide flow direction of the air gap 6, because the outer side of the air ring 1 is in a natural environment and has poor guidance performance for the air flow, and the inner side wall surface of the air ring 1 is provided with an annular inner space which has better guidance performance for the air flow, the structure of the air ring 1 disclosed in the technical scheme is optimized as a feasible option, the inner wall surface of the air ring 1 is a conical surface, the inner wall surface extends to two end surfaces of the air ring 1 to form a front end air port and a rear end air port respectively, and the diameter of the front end air port is smaller than that of the rear end; the air gap 6 is positioned at the front end air port, and the opening of the air gap 6 faces to the rear end air port. The advantage of this arrangement is that the air current flowing out from the air gap 6 flows along the inner wall surface of the air ring 1, and the guidance of the air current is good.

The structure of the wind ring 1 in the technical scheme is optimized continuously, and as a feasible selection, the value of the conical half angle α of the inner wall surface is more than 0 degree and less than α and less than or equal to 30 degrees.

The structure of the air ring 1 in the technical scheme is continuously optimized, as a feasible option, the end face of the air ring 1 where the rear-end air opening is located is a conical surface, and the value of the conical half angle β of the end face of the air ring 1 is more than or equal to 100 degrees and less than β degrees and less than 180 degrees.

In order to continuously improve the air guiding performance of the air gap 6 to the air flow, the communication structure of the air gap 6 and the air channel 5 is optimized, and as a feasible option, the communication part of the air gap 6 and the air channel 5 is a smooth and transitional arc-shaped surface.

Control part 2 plays fixed effect to wind ring 1 and fan 4, and when fan 4 was arranged in wind ring 1, fan 4 passed through 2 air intakes of control part, specifically, as feasible selection, control part 2 include the casing, fan 4 be located the casing, and be provided with air inlet structure 3 on the casing.

Specifically, in the specific use process, the control part 2 can be used as a handheld handle, so that the carrying and the use are convenient.

A certain gap is kept between the air inlet of the fan 4 and the inner wall surface of the shell so as to facilitate air inlet of the fan 4, and the gap kept between the air inlet of the fan 4 and the shell is larger than 2mm under general conditions; in addition, the fan 4 disclosed in the above technical scheme is optimized, and as a feasible option, the fan 4 is a forward-inclined centrifugal fan 4.

The control part 2 disclosed in the above technical scheme is optimized, as a feasible option, a battery and a control switch are arranged in the control part 2, and the battery, the control switch and the fan 4 are sequentially and electrically connected to form a power supply control loop. Meanwhile, the control part 2 is also provided with a charging interface, and the battery is charged through the charging interface.

In this embodiment, the charging interface adopts a USB interface.

The above embodiments are just examples of the present invention, but the present invention is not limited to the above optional embodiments, and the above technical features can be arbitrarily combined to obtain a new technical solution without contradiction, and a person skilled in the art can obtain other various embodiments by mutually arbitrarily combining the above embodiments, and any person can obtain other various embodiments by the teaching of the present invention. The above detailed description should not be taken as limiting the scope of the invention, which is defined in the following claims, and which can be used to interpret the claims.

Claims

1. Rechargeable handheld fan of hidden fan blade formula which characterized in that: the air conditioner comprises an air ring (1) and a fan (4), wherein an air outlet of the fan (4) is communicated with the air ring (1), an air channel (5) is arranged inside the air ring (1), and an air gap (6) is formed in the wall surface of the air ring (1); the fan also comprises a control part (2) connected with the wind ring (1), and the fan (4) is arranged in the control part (2).

2. The rechargeable concealed fan handheld fan of claim 1, wherein: the width of the air gap (6) is 1-4 mm.

3. The rechargeable concealed fan handheld fan of claim 1, wherein: the air ring (1) is a circular ring, the air gap (6) is positioned on the inner wall surface of the air ring (1), and the air gap (6) is an annular gap.

4. The rechargeable concealed fan handheld fan of claim 3, wherein: the inner wall surface of the air ring (1) is a conical surface, the inner wall surface extends to two end surfaces of the air ring (1) to form a front-end air opening and a rear-end air opening respectively, and the diameter of the front-end air opening is smaller than that of the rear-end air opening; the air gap (6) is positioned at the air inlet at the front end, and the opening of the air gap (6) faces to the air inlet at the rear end.

5. The rechargeable concealed fan of claim 4 wherein the conical half angle α of the inner wall surface has a value of 0 ° < α ° or less than 30 °.

6. The rechargeable hidden-blade handheld fan of claim 4 is characterized in that the end face of the air ring (1) where the rear end air opening is located is a conical surface, and the half-angle β of the cone of the end face of the air ring (1) is more than or equal to 100 degrees and less than β degrees and less than 180 degrees.

7. The rechargeable concealed fan handheld fan according to any one of claims 1-6, wherein: the connecting part of the air gap (6) and the air duct (5) is an arc surface in smooth transition.

8. The rechargeable concealed fan handheld fan of claim 1, wherein: control portion (2) include the casing, fan (4) be located the casing, and be provided with air inlet structure (3) on the casing.

9. The rechargeable concealed fan handheld fan of claim 1, wherein: the fan (4) is a forward-inclined centrifugal fan (4).

10. The rechargeable concealed fan handheld fan of claim 1, wherein: the control part (2) is internally provided with a battery and a control switch, and the battery, the control switch and the fan (4) are sequentially and electrically connected to form a power supply control loop.