CN112401442A

CN112401442A - Hand-held electric hair drier

Info

Publication number: CN112401442A
Application number: CN202011010669.0A
Authority: CN
Inventors: 张卫东; 陈利权
Original assignee: Guangzhou Ousheng Commerce And Trade Development Co ltd
Current assignee: Guangzhou Ousheng Commerce And Trade Development Co ltd
Priority date: 2020-09-23
Filing date: 2020-09-23
Publication date: 2021-02-26

Abstract

The invention provides a handheld electric hair drier. The hair dryer includes a main body including a primary fluid inlet, a primary fluid outlet, a fan unit, a heating element, and a fluid flow path, and a handle. The fluid flow path includes a primary fluid path extending linearly from the primary fluid inlet into the body to the primary fluid outlet, a side path, and a wall-defining path. The side path and the wall-defining path draw fluid through the main fluid path into the fan unit. A fan unit is disposed in the main fluid path, the fan unit drawing fluid into the main fluid path and transporting the fluid through the heating element such that the fluid in the main fluid path is heated. The electric hair drier can provide high-pressure jet air flow and simultaneously improve the air supplementing speed so as to reduce the negative pressure to realize air flow balance, thereby improving the energy utilization efficiency.

Description

Hand-held electric hair drier

Technical Field

The present invention relates to the field of hand-held household appliances, in particular to a hand-held hair dryer for hair care and hair drying appliances such as hair dryers and heat-setting brushes.

Background

Based on the characteristic that the hair dryer can be rapidly shaped and dried, the hair dryer has a large audience group. The fan unit in the blower can suck air flow from an air inlet of the blower and send the sucked air flow out from an air outlet opposite to the air inlet, so that the drying purpose is achieved. Additionally, hot air blowers (such as heat styling brushes) are used to style hair in either a wet or dry condition. The air outlet of the blower can be connected with an air nozzle, the air speed of the air flow can be improved through the air nozzle, the air flow can be concentrated, and the purpose of modeling is achieved.

The most important performance for a hair dryer is comfort and safety, and it is generally difficult to compromise both with current hair dryers. Particularly, for the travelling comfort, the most direct problem is the time of hair drying, for the great women of hair volume, often dry the hair and need the time of ten minutes to still need swing, the removal hair-dryer that must not stop blow-dry in-process, waste time and energy, lead to the arm hard, influence and use experience. There are no two ways to dry hair quickly, either to raise the temperature or to increase the air volume. The first approach, commonly used by conventional hair dryers, is to increase the temperature to shorten the time required to dry the hair. But high temperatures are prone to safety issues: the hair is baked to be dry, scales and branches are generated, and the scalp is damaged at high temperature. The second way is to increase the air volume only by increasing the motor to drive a larger fan, but the weight and noise of the hair dryer are increased, and the experience is more affected.

Dyson hair dryers are widely accepted by users. The Dyson high-speed digital motor carried by the Dyson hair drier has the advantages that the rotating speed per minute reaches more than 110000 revolutions (twenty-three thousand revolutions per minute of the rotating speed of most hair driers on the market), three times of strong airflow is sprayed by an Air Amplifier airflow multiplication technology, wet hair can be dried in seconds under high-pressure spraying airflow, and the damage to the hair is reduced. Meanwhile, due to the ultrahigh frequency rotating speed of the motor, the frequency of the generated partial noise is very high, and a noise person higher than the upper limit of the common ear hearing (twenty kilohertz) cannot hear the partial noise, so the noise is small. However, because the motor and the fan are arranged in the handle, the annular wall air duct is arranged at the joint of the handle and the air blowing cylinder, air is blown out mainly through the coanda effect, on one hand, the energy utilization efficiency is not high, and on the other hand, the handle cannot be folded.

Disclosure of Invention

The invention mainly solves the technical problem of providing a handheld electric hair drier which can provide high-pressure jet air flow and simultaneously improve air supplement speed so as to reduce negative pressure to realize air flow balance, thereby improving energy utilization efficiency. In addition, the handheld electric hair drier accelerates the heat dissipation efficiency under the condition of increasing the air outlet speed of a unit area.

In order to solve the above technical problem, one technical solution adopted by the present invention is to provide a hand-held hair dryer, which comprises a main body and a handle, wherein the main body comprises a main fluid inlet, a main fluid outlet, a fan unit, a heating element and a fluid flow path. The fluid flow path includes a primary fluid path extending linearly from the primary fluid inlet into the body to the primary fluid outlet, a side path and a wall defining path. The side path and the wall defining path draw fluid through the main fluid path into the fan unit. The fan unit is disposed on the main fluid path, the fan unit drawing fluid into the main fluid path and transporting fluid through the heating element such that fluid in the main fluid path is heated.

Generally, a fan unit driven by a digital high-speed motor sucks air fluid to provide high-pressure jet air flow, negative pressure is formed if the air fluid at the front end of the fan unit is not sufficiently supplemented, disturbance is caused to the air flow discharged from the rear end of the fan unit, on one hand, the air outlet speed per unit area is reduced, and on the other hand, large air noise is generated due to air flow disturbance and transverse friction. The side path and the walls of the hand held hair dryer of the present invention define a path that merges with the main fluid path at a point where the fluid enters the front end of the fan unit. The side paths and the wall-defining paths increase the path of the make-up air flow, on the one hand increasing the make-up air velocity to reduce the negative pressure to achieve air flow balance, and on the other hand eliminating air flow disturbances to reduce air noise.

In a preferred embodiment, the side path is perpendicular to the main fluid path.

In a preferred embodiment, the primary fluid inlet comprises a first aperture comprising a plurality of apertures.

In a preferred embodiment, the outer wall of the body proximate the primary fluid outlet comprises a second aperture comprising a plurality of apertures extending at least partially around the body.

In a preferred embodiment, the second aperture connects the walls to define a path.

In a preferred embodiment, the outer wall of the body proximate the primary fluid inlet comprises a third aperture comprising a plurality of apertures extending at least partially around the body.

In a preferred embodiment, the third holes are symmetrically disposed at both sides of the body to connect the side paths, respectively.

In a preferred embodiment, the handle is connected to the fan unit at a location on the main body.

In a preferred embodiment, a power cable for supplying power to the fan unit extends through an end of the handle.

In a preferred embodiment, the heating element extends along the body to the primary fluid outlet.

In a preferred embodiment, the body further comprises a duct and an outer wall, the duct extending within the outer wall, the space extending between the duct and the outer wall providing the wall defining the path. The duct facilitates, on the one hand, the insulation of the heated fluid in said main fluid path and, on the other hand, the heat dissipation of said heating element and the motor of said fan unit.

In a preferred embodiment, the wall defines a path that is annular.

Drawings

The invention and its advantages will be better understood by studying the following detailed description of specific embodiments, given by way of non-limiting example, and illustrated in the accompanying drawings, in which:

fig. 1 is a sectional structural view of the hand-held hair dryer of embodiment 1 of the present invention.

Fig. 2 is a schematic view of a fluid flow path of embodiment 1 of the present invention.

Fig. 3 is a sectional structure view of the main body of the hand-held hair dryer of embodiment 1 of the present invention.

Fig. 4 is a side view of the hand-held hair dryer of embodiment 1 of the present invention.

Fig. 5 is a side view of a hand-held hair dryer of embodiment 2 of the present invention.

Detailed Description

Referring to the drawings, wherein like reference numbers refer to like elements throughout, the principles of the present invention are illustrated in an appropriate environment. The following description is based on illustrated embodiments of the invention and should not be taken as limiting the invention with regard to other embodiments that are not detailed herein.

The word "embodiment" is used herein to mean serving as an example, instance, or illustration. In addition, the articles "a" and "an" as used in this specification and the appended claims may generally be construed to mean "one or more" unless specified otherwise or clear from context to be directed to a singular form.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Further, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise direct contact of the first and second features through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or meaning that the first feature is at a lesser elevation than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or uses of other materials.

Example 1

First, a hand-held hair dryer according to embodiment 1 of the present invention will be described with reference to fig. 1 to 4. One solution adopted by the present invention is to provide a hand-held hair dryer, as shown in fig. 1, comprising a main body 10 and a handle 11, the main body 10 comprising a primary fluid inlet 101, a fan unit 102, a heating element 103, a fluid flow path 104 and a primary fluid outlet 105. As shown in fig. 2 (the direction of the arrows indicate the direction of fluid flow), the fluid flow path 104 includes a main fluid path 1041 that extends linearly from the main fluid inlet 101 into the body 10 to the main fluid outlet 105, a side path 1042, and a wall-defining path 1043. The side paths 1042 and the wall defining path 1043 draw fluid through the main fluid path 104 into the fan unit 102. The fan unit 102 is disposed on the main fluid path 1041, and the fan unit 102 draws fluid into the main fluid path 1041 and transports the fluid through the heating element 103 such that the fluid in the main fluid path 1041 is heated.

Generally, a fan unit driven by a digital high-speed motor sucks air fluid to provide high-pressure jet air flow, negative pressure is formed if the air fluid at the front end of the fan unit is not sufficiently supplemented, disturbance is caused to the air flow discharged from the rear end of the fan unit, on one hand, the air outlet speed per unit area is reduced, and on the other hand, large air noise is generated due to air flow disturbance and transverse friction. The side path 1042 and the wall defining path 1043 of the hand held hair dryer of the present invention merge with the main fluid path 1041 at the front end where the fluid enters the fan unit 102. The side paths 1042 and the wall-defining paths 1043 increase the path of the make-up air flow, on the one hand increasing the make-up air velocity to reduce the negative pressure for air flow balancing, and on the other hand eliminating air flow disturbances to reduce air noise.

The side path 1042 is perpendicular to the main fluid path 1041.

As shown in fig. 4, the primary fluid inlet 101 includes a first aperture 1011, and the first aperture 1011 includes a plurality of apertures.

The outer wall of the body 10 adjacent the primary fluid outlet 105 comprises a second aperture 1051, and the second aperture 1051 comprises a plurality of apertures extending at least partially around the body 10. The second aperture 1051 connects the wall defining path 1043.

The outer wall of the body 10 adjacent to the fan unit 102 includes a third aperture 1061, and the third aperture 1061 includes a plurality of apertures extending at least partially around the body 10. The third holes 1061 are symmetrically disposed at both sides of the body 10 and respectively connected to the side paths 1042.

The handle 11 is connected to the fan unit 102 at a position on the main body 10. A power cable for supplying power to the fan unit 102 extends through the end of the handle 11. The heating element 103 extends along the body 10 to the primary fluid outlet 105.

The body 10 includes a duct extending within an outer wall and a space extending between the duct and the outer wall providing the wall defining path 1043. The duct facilitates, on the one hand, the insulation of the heated fluid in said main fluid path and, on the other hand, the heat dissipation of said heating element 103 and the motor of said fan unit 102.

In a preferred embodiment, the wall defining path 1043 is annular.

The handheld electric hair drier of the embodiment can provide high-pressure jet air flow and simultaneously improve the air supplementing speed so as to reduce negative pressure to realize air flow balance, thereby improving the energy utilization efficiency. In addition, the handheld electric hair drier of the embodiment accelerates the heat dissipation efficiency under the condition of increasing the air outlet speed of the unit area.

Example 2

Fig. 5 is a side view of the hand-held hair dryer of embodiment 2 of the present invention. Only the differences between embodiment 2 and embodiment 1 will be described below, and the descriptions of the similarities will be omitted.

The outer wall of the body 10 adjacent to the primary fluid inlet 101 comprises a fourth aperture 1012 comprising a plurality of apertures extending at least partially around the body 10. The fourth hole 1012 connects the wall defining path 1043.

While the invention has been described above with reference to certain embodiments, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the various features of the various embodiments of the present disclosure may be used in any combination, provided that there is no structural conflict, and the combination is not exhaustively described in this specification for brevity and resource conservation. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims

1. A hand held hair dryer comprising a main body and a handle, the main body comprising a primary fluid inlet, a primary fluid outlet, a fan unit, a heating element and a fluid flow path, characterized in that: the fluid flow path comprises a primary fluid path extending linearly from the primary fluid inlet into the body to the primary fluid outlet, a side path and a wall defining path; the side path and the wall defining path draw fluid through the main fluid path into the fan unit; the fan unit is disposed on the main fluid path, the fan unit drawing fluid into the main fluid path and transporting fluid through the heating element such that fluid in the main fluid path is heated.

2. The hand-held hair dryer of claim 1, wherein said side path is perpendicular to said main fluid path.

3. The hand-held hair dryer of claim 1, wherein said primary fluid inlet includes a first aperture, said first aperture including a plurality of apertures.

4. The hand-held hair dryer of claim 3 wherein the outer wall of said body proximate said primary fluid outlet includes a second aperture, said second aperture including a plurality of apertures, said plurality of apertures extending at least partially around said body.

5. The hand-held hair dryer of claim 4 wherein said second aperture connects said walls to define a pathway.

6. The hand-held hair dryer of claim 5, wherein the outer wall of said body proximate said primary fluid inlet includes a third aperture, said third aperture including a plurality of apertures extending at least partially around said body.

7. The hand held hair dryer of claim 6, wherein said third apertures are symmetrically disposed on both sides of said body, connecting said side paths respectively.

8. A hand-held hair dryer according to claim 1 wherein said handle is connected to said fan unit at a location on said body.

9. The hand-held hair dryer of claim 1 wherein said main body further comprises a duct and an outer wall, said duct extending within said outer wall, the space extending between said duct and said outer wall providing said wall defining a path.

10. The hand held hair dryer of claim 9 wherein said wall defines a path that is annular.