CN215714925U

CN215714925U - Hair drier

Info

Publication number: CN215714925U
Application number: CN202122228071.5U
Authority: CN
Inventors: 杨旭东; 上官云杰
Original assignee: Globe Jiangsu Co Ltd
Current assignee: Globe Jiangsu Co Ltd
Priority date: 2021-09-14
Filing date: 2021-09-14
Publication date: 2022-02-01
Anticipated expiration: 2031-09-14

Abstract

The utility model discloses a blower which comprises a casing, a fan and a fan, wherein the casing is provided with an air inlet end and an air outlet end; the blow pipe comprises an air inlet and an air outlet, the air inlet and the air outlet end of the shell are connected with a first duct and are arranged in the shell; the motor is arranged in the first duct; the first fan blade is assembled on an output shaft of the motor, and the motor drives the first fan blade to rotate around an output axis of the motor; and the second fan blade is arranged in the casing and/or the blow pipe. The blower provided by the utility model can achieve the purposes of integrating air flow and reducing noise by arranging the unpowered blades in front and at the back of the power blade in the air duct, and meanwhile, the unpowered blades are arranged at the air outlet of the blowing pipe of the blower, so that the effects of increasing local wind speed and diffusing wind power can be achieved, and the blowing area is increased under the condition of not reducing the wind speed, thereby improving the working efficiency.

Description

Hair drier

Technical Field

The utility model relates to the technical field of garden tools, in particular to a blower.

Background

The blower is one kind of conventional garden tool and is used mainly to blow down fallen leaves, road dust, accumulated water, snow and other sundries. The existing hair dryer basically uses a single fan blade, air is directly sucked into a duct by the fan blade in the using process and then blown out by a blow pipe, the air in the front of and behind the fan blade is not integrated, the air speed difference is large, the noise is high, and the comfort of a user in use is reduced. In addition, no fan blade is arranged at the air outlet of the blowing pipe of the existing blower to diffuse wind power, so that the working efficiency is lower.

SUMMERY OF THE UTILITY MODEL

In view of the above disadvantages of the prior art, an object of the present invention is to provide a hair dryer, which is used to solve the technical problems of the prior art that the noise is large due to the large difference between the front and rear wind speeds of the fan blades, and the work efficiency is low because no fan blade diffuses the wind at the air outlet of the blow pipe of the prior hair dryer.

To achieve the above and other related objects, the present invention provides a hair dryer, comprising:

the air conditioner comprises a shell, a fan and a fan, wherein the shell is provided with an air inlet end and an air outlet end;

the blowpipe comprises an air inlet and an air outlet, wherein the air inlet is connected with the air outlet end of the casing

The first duct is arranged in the shell;

the motor is arranged in the first duct;

the first fan blade is assembled on an output shaft of the motor, and the motor drives the first fan blade to rotate around an output axis of the motor;

and the second fan blade is arranged in the casing and/or the blow pipe.

In an optional embodiment of the present invention, the first fan blade and the second fan blade rotate coaxially.

In an optional embodiment of the present invention, the second fan blade includes a front fan blade and a rear fan blade; the front fan blade is arranged between the first fan blade and the air outlet; the rear fan blade is arranged between the first fan blade and the air inlet end of the casing.

In an optional embodiment of the present invention, the blower includes a second duct, the second duct is disposed between the first duct and the air inlet end, the second duct is connected to the first duct, and the second fan blade is rotatably installed in the second duct.

In an optional embodiment of the present invention, a first hollow guide vane is disposed in the second duct; the second fan blade is rotatably installed on the first hollow guide vane.

In an optional embodiment of the present invention, the second fan is rotatably installed in the blowing pipe.

In an optional embodiment of the present invention, a second hollow guide vane is disposed in one end of the blowpipe close to the air inlet, and the second fan blade is rotatably mounted on the second hollow guide vane.

In an optional embodiment of the present invention, a third hollow guide vane is disposed at one end of the air outlet of the blowpipe, and the second fan blade is rotatably mounted on the third hollow guide vane.

In an optional embodiment of the present invention, the blower further includes an air duct disposed in the casing, the air duct is located between the air inlet end and the first duct, and the air duct is communicated with the first duct.

In an optional embodiment of the present invention, the air duct is in a trumpet shape, and an opening area of one end of the air duct close to the air inlet end is larger than an opening area of a communication end of the air duct and the first duct.

In an optional embodiment of the present invention, the housing comprises a first housing and a second housing, and the first housing and the second housing are buckled to form an accommodating cavity.

In an optional embodiment of the present invention, the blower further includes an air inlet window, and the air inlet window is disposed at an air inlet end of the casing.

In an optional embodiment of the present invention, the air inlet end and the air outlet end are disposed at two ends of the casing relatively.

According to the hair drier, the second fan blade is additionally arranged behind the first fan blade in the air channel, when the motor drives the first fan blade to rotate, the airflow drives the second fan blade at the air inlet end to rotate, so that the air rotates in advance, the rotating speed difference between the air and the first fan blade is reduced, the air is prevented from colliding with the first fan blade rotating at a high speed, the vibration of the first fan blade can be reduced, and the effect of reducing noise is achieved.

According to the hair drier, the second fan blade is additionally arranged in front of the first fan blade in the air duct, when air flows out through the first fan blade, the air outlet flow drives the second fan blade at the air outlet end to rotate, so that the air flow can be integrated, the blown air flow is more concentrated, the waste of the whole efficiency due to the air flow divergence is avoided, the blowing force of the hair drier is improved, the rotating speed of the motor can be reduced under the condition that the blowing force is equal, and the purpose of reducing noise is achieved.

According to the hair drier, the second fan blade is additionally arranged at the air outlet of the blowing pipe, the air outlet drives the second fan blade at the air outlet to rotate, the effects of increasing local wind speed and diffusing wind power can be achieved, the blowing area is increased under the condition that the wind speed is not reduced, and therefore the working efficiency is improved.

Drawings

Figure 1 shows a schematic perspective view of a hair dryer according to the present invention.

Figure 2 shows a cross-sectional view of a first embodiment of a hair dryer of the present invention.

Figure 3 shows an exploded view of a first embodiment of a hair dryer of the present invention.

Figure 4 shows a cross-sectional view of a second embodiment of a hair dryer of the present invention.

Figure 5 shows an exploded view of a second embodiment of a hair dryer of the present invention.

A host 10; an air duct 11; a first duct 12; a housing 13; a first housing 13 a; a second housing 13 b; a second duct 14; a first hollow vane 141; a louver 15; a rear fan blade 16; a first rotating shaft 161; a first bearing 162; a first rotary disk 163; a motor 17; a power fan blade 18; a diversion cone 19; a blow pipe 20; a front fan blade 21; a second rotating shaft 211; a second bearing 212; a second rotating disk 213; a second hollow vane 22; a front fan blade 23; a third rotating shaft 231; a third bearing 232; a third rotating disk 233; a third hollow guide vane 24; an air inlet 25; and an air outlet 26.

Detailed Description

The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The utility model is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention.

Please refer to fig. 1-5. It should be noted that the drawings provided in the present embodiment are only for illustrating the basic idea of the present invention, and the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, and the type, quantity and proportion of the components in actual implementation may be changed freely, and the layout of the components may be more complicated.

Example one

Referring to fig. 1-3, in order to solve the problem of large noise caused by large difference between the front and rear wind speeds of the fan blades of the conventional hair dryer, the present invention provides a hair dryer, in which the front and rear sides of the power fan blade (hereinafter referred to as the first fan blade 18) are provided with an unpowered fan blade (hereinafter referred to as the second fan blade), so as to achieve the purposes of integrating air flow and reducing noise.

Referring to fig. 1-3, in the present embodiment, the blower includes a main body 10, a blow tube 20, and a battery pack (not shown) for supplying power to a motor 17 of the main body 10. One end of the blowpipe 20 is an air inlet which is connected with the main machine 10 to form an air flow channel, the other end of the blowpipe 20 is an air outlet 26, the air outlet 26 is positioned at one end of the blowpipe 20 far away from the main machine 10, and air flows from the air flow channel to the air outlet 26 and is blown out from the air outlet 26 for blowing off fallen leaves and garbage on the ground; the battery pack may be disposed at the rear end of the host 10, for example. Wherein, figure 1 shows a schematic perspective view of a hair dryer; figure 2 shows a cross-sectional view of a blower; figure 3 shows an exploded view of a hair dryer.

Referring to fig. 1 to 3, in the present embodiment, the main machine 10 includes a casing 13, a first duct 12 disposed in the casing 13, a motor 17 installed in the first duct 12, a first blade 18 driven by the motor 17, and a second blade not driven by the motor. The casing 13 is used for protecting the internal components such as the motor 17, the first fan blade 18 or the second fan blade; the motor 17 is used for driving the first fan blade 18 to work so as to realize the purging operation.

Referring to fig. 1-3, in the present embodiment, the rear end of the casing 13 is an air inlet end (defined as an end of the casing 13 away from the blow pipe 20), the front end of the casing 13 is an air outlet end (defined as an end of the casing 13 connected to the blow pipe 20), and the air flow enters the casing 13 from the air inlet end and flows out from the blow pipe 20 after being pressurized. The air inlet end department of casing 13 is provided with grille-like wind window 15, wind window 15 with accessible screwed connection is fixed between the casing 13, and the air current passes through in wind window 15 gets into casing 13, can avoid debris to get into in casing 13 like this to debris and first fan blade 18 and second fan blade contact, make the fan blade can even running, the safety when guaranteeing the hair-dryer operation improves the reliability of hair-dryer. Of course, the wind screen 15 may be integrated with the housing 13. Specifically, the air inlet end and the air outlet end of the casing are arranged oppositely and are respectively positioned at the front end and the rear end of the casing 13 in the axial direction. Of course, in some embodiments, the air intake end may be disposed on both sides or the bottom of the housing 13.

Specifically, the casing 13 includes a first casing 13a (left casing) and a second casing 13b (right casing) that are symmetrically arranged, the first casing 13a and the second casing 13b are buckled to form a containing cavity, the first casing 13a and the second casing 13b are fixed by screw connection, the containing cavity is used for containing the first duct 12, and the first duct 12 is located between an air inlet end and an air outlet end of the casing. The first housing 13a and the second housing 13b extend upward to form a holding portion (not shown) for holding, and the holding portion is provided with an adjusting button for controlling the start and stop of the motor 17 and adjusting the speed.

Referring to fig. 1 to 3, the first duct 12 is cylindrical, an insertion portion is formed at an outer side of the first duct 12, and an insertion groove matched with the insertion portion is formed at an inner side of the housing 13, and when the first duct is installed, the insertion portion is inserted into the insertion groove, so that the first duct 12 is fixed in the accommodating cavity of the housing 13, which not only facilitates the detachment of the first duct 12, but also plays a role in limiting. Of course, other means such as bolts may be used to fix the first duct 12 in the accommodating cavity of the housing 13.

Referring to fig. 1-3, the motor 17 has an output shaft, the output shaft is disposed along an axial direction of the first duct 12, the first fan 18 is mounted on the output shaft of the motor 17, the first fan 18 is located between the first duct 12 and the air inlet end of the casing 13, and the first fan 18 is driven by the motor 17 to rotate.

In order to facilitate the flow of air, reduce the flow path of the air flow, and improve the air outlet efficiency of the hair dryer, the host 10 further includes a guiding cone 19, the guiding cone 19 is installed at one end of the first duct 12 close to the air outlet end, the first duct 12 and the guiding cone 19 are connected by, for example, a snap joint, and both form a closed structure.

Referring to fig. 1 to 3, in the present embodiment, an air duct 11 for guiding and restricting an air flow is further disposed in the accommodating cavity of the casing 13, the air duct 11 is located between an air inlet end of the casing 13 and the first duct 12, and the air duct 11 is communicated with the first duct 12. The air duct 11 is in a horn shape, the opening at the rear end of the air duct 11 is larger, the opening at the front end of the air duct 11 is smaller, that is, the opening area of the end, close to the air inlet end of the casing 13, of the air duct 11 is larger than the opening area of the end, communicated with the first duct 12, of the air duct 11, so that air flow can enter the first duct 12 conveniently.

Referring to fig. 1 to 3, in this embodiment, the second fan blade includes a rear fan blade 16 and a front fan blade 21, the rear fan blade 16 is disposed between the first fan blade 18 and the air inlet end of the casing 13, and the front fan blade 21 is disposed at an end of the blow pipe 20 close to the air inlet 25.

By arranging the rear fan blade 16 at the rear end of the first fan blade 18, when the motor 17 drives the first fan blade 18 to rotate, the airflow drives the rear fan blade 16 to rotate, so that the air rotates in advance, the rotating speed difference between the air and the first fan blade 18 is reduced, the air is prevented from colliding with the first fan blade 18 rotating at a high speed, the vibration of the first fan blade 18 can be reduced, and the effect of reducing noise is achieved.

The front fan blade 21 is additionally arranged at the front end of the first fan blade 18 in the air duct, when air flows out through the first fan blade 18, the air flow drives the front fan blade 21 to rotate, so that the air flow can be integrated, the blown air flow is more concentrated, the waste of the whole efficiency due to air flow divergence is avoided, the blowing power of the blower is improved, the rotating speed of the motor 17 can be reduced under the condition that the blowing power is equal, and the purpose of reducing noise is achieved.

Referring to fig. 1-3, a second duct 14 is further disposed in the accommodating cavity of the host 10, the second duct 14 is located between the first duct 12 and the air duct 11, the first duct 12, the second duct 14 and the air duct 11 are sequentially disposed along the axial direction of the host 10, the front end of the second duct 14 is connected to the rear end of the first duct 12, the rear end of the second duct 14 is connected to the front end of the air duct 11, a first hollow guide vane 141 is disposed in the second duct 14, and the rear fan blade 16 is rotatably mounted on the first hollow guide vane 141.

Specifically, the rear fan 16 is mounted on the first hollow guide vane 141 through a first rotating shaft 161, a first rotating disk 163, a first bearing 162 and a first fixing member (e.g., a washer nut). When the fan blade is installed, the first rotating disk 163 is firstly pressed on the first rotating shaft 161, then one end of the first rotating shaft 161 is inserted into the first bearing 162, the first bearing 162 is fixed at the central position of the first hollow guide vane 141, then the rear fan blade 16 is assembled on the first rotating disk 163, and finally the first fixing piece is used for fixing.

Referring to fig. 1-3, a second hollow guide vane 22 is formed in an inner cavity of a rear end (an air inlet 25) of the blow pipe 20, and the front fan blade 21 is rotatably mounted on the second hollow guide vane 22. Specifically, the front fan blade 21 is mounted on the second hollow guide vane 22 through a second rotating shaft 211, a second rotating disc 213, a second bearing 212 and a second fixing member (e.g., a washer nut). When the fan blade is installed, the second rotating disc 213 is firstly pressed on the second rotating shaft 211, then one end of the second rotating shaft 211 is inserted into the second bearing 212, the second bearing 212 is fixed at the central position of the second hollow guide vane 22, then the front fan blade 21 is assembled on the second rotating disc 213, and finally the second rotating disc is fixed by the second fixing piece. It will be appreciated that in some embodiments, the front fan 21 may also be mounted in the housing 13 while being secured at the front end of the first fan 18.

Referring to fig. 1 to 3, in order to better integrate the inlet flow and the outlet flow, the first rotating shaft 161 of the rear fan 16, the second rotating shaft 211 of the front fan 21, and the rotating shaft of the first fan 18 (i.e., the output shaft of the motor 17) are coaxially disposed.

It will be appreciated that in some embodiments, the blower may comprise only one of the rear-mounted fan blades 16 and the front-mounted fan blades 21.

The working principle of the hair dryer of the embodiment is as follows: when the motor 17 drives the first fan blade 18 to rotate, the airflow drives the rear fan blade 16 to rotate, so that the air rotates in advance, the rotating speed difference between the air and the first fan blade 18 is reduced, the air is prevented from colliding with the first fan blade 18 rotating at a high speed in the front direction, the vibration of the first fan blade 18 can be reduced, and the effect of reducing noise is achieved; when the air flows out through the first fan blade 18, the air flow drives the front fan blade 21 to rotate, the air flow can be integrated, the blown air flow is more concentrated, the waste of the whole efficiency caused by the air flow divergence is avoided, the blowing force of the blower is improved, the rotating speed of the motor 17 can be reduced under the condition that the blowing force is equal, and the purpose of reducing noise is achieved.

Example two

Referring to fig. 4 and 5, the present invention provides another hair dryer, which is different from the first embodiment in that the structure of the rear fan 16 and its corresponding hollow guide vane, rotating shaft, rotating disc and fixing member is not provided, and the front fan 21 in the first embodiment is provided at the air outlet 26 of the blow pipe 20 (here, the front fan 23) of the front fan 23, and other structures are substantially the same, so that the description is not repeated.

Referring to fig. 4 and 5, a third hollow guide vane 24 is formed in an air outlet 26 of the blowpipe 20, and the front fan blade 23 is rotatably mounted on the third hollow guide vane 24. Specifically, the front fan blade 23 is mounted on the third hollow guide vane 24 through a third rotating shaft 231, a third rotating disk 233, a third bearing 232, and a third fixing member (e.g., a washer nut). During installation, the third rotating disc 233 is firstly pressed on the third rotating shaft 231, then one end of the third rotating shaft 231 is inserted into the third bearing 232, the third bearing 232 is fixed at the center of the third hollow guide vane 24, then the front fan blade 23 is assembled on the third rotating disc 233, and finally the third fixing piece is used for fixing.

The working principle of the hair dryer of the embodiment is as follows: when the hair drier works, the air outlet can drive the front-mounted fan blades 23 at the air outlet 26 to rotate, so that the effects of increasing local wind speed and diffusing wind power can be achieved, the air blowing area is increased under the condition that the wind speed is not reduced, and the working efficiency is improved.

It can be understood that, referring to the technical solution of the first embodiment, the rear fan blade 16 and the front fan blade 23 are provided in the hair dryer, that is, a second fan blade is provided at the rear end of the first fan blade 18 and the air outlet 26 of the blow pipe 20, respectively.

It is understood that, in some embodiments, the technical solutions of the first and second embodiments may also be combined, that is, the rear fan blade 16, the front fan blade 21 and the front fan blade 23 are respectively disposed in the blower, that is, a second fan blade is respectively disposed at the front end and the rear end of the first fan blade 18 and the air outlet 26 of the blow pipe 20.

In summary, in the hair dryer of the present invention, the second fan blade is added behind the first fan blade in the air duct, and when the motor drives the power fan blade to rotate, the airflow drives the second fan blade at the air inlet end to rotate, so that the air rotates in advance, the rotation speed difference between the air and the first fan blade is reduced, the air is prevented from colliding with the first fan blade rotating at a high speed, the vibration of the first fan blade can be reduced, and the noise reduction effect is achieved. According to the hair drier, the second fan blade is additionally arranged in front of the first fan blade in the air duct, when air flows out of the first fan blade through the power fan blade, the air outlet flow drives the second fan blade at the air outlet end to rotate, so that the air flow can be integrated, the blown air flow is more concentrated, the waste of the whole efficiency due to the air flow divergence is avoided, the blowing force of the hair drier is improved, the rotating speed of the motor can be reduced under the condition that the blowing force is equal, and the purpose of reducing noise is achieved. According to the hair drier, the second fan blade is additionally arranged at the air outlet of the blowing pipe, the air outlet drives the second fan blade at the air outlet to rotate, the effects of increasing local wind speed and diffusing wind power can be achieved, the blowing area is increased under the condition that the wind speed is not reduced, and therefore the working efficiency is improved.

In the description herein, numerous specific details are provided, such as examples of components and/or methods, to provide a thorough understanding of embodiments of the utility model. One skilled in the relevant art will recognize, however, that an embodiment of the utility model can be practiced without one or more of the specific details, or with other apparatus, systems, assemblies, methods, components, materials, parts, and/or the like. In other instances, well-known structures, materials, or operations are not shown or described in detail to avoid obscuring aspects of embodiments of the utility model.

It will also be appreciated that one or more of the elements shown in the figures can also be implemented in a more separated or integrated manner, or even removed for inoperability in some circumstances or provided for usefulness in accordance with a particular application.

Additionally, any reference arrows in the drawings/figures should be considered only as exemplary, and not limiting, unless otherwise expressly specified. Further, as used herein, the term "or" is generally intended to mean "and/or" unless otherwise indicated. Combinations of components or steps will also be considered as being noted where terminology is foreseen as rendering the ability to separate or combine is unclear.

The above description of illustrated embodiments of the utility model, including what is described in the abstract of the specification, is not intended to be exhaustive or to limit the utility model to the precise forms disclosed herein. While specific embodiments of, and examples for, the utility model are described herein for illustrative purposes only, various equivalent modifications are possible within the spirit and scope of the present invention, as those skilled in the relevant art will recognize and appreciate. As indicated, these modifications may be made to the present invention in light of the foregoing description of illustrated embodiments of the present invention and are to be included within the spirit and scope of the present invention.

The systems and methods have been described herein in general terms as the details aid in understanding the utility model. Furthermore, various specific details have been given to provide a general understanding of the embodiments of the utility model. One skilled in the relevant art will recognize, however, that an embodiment of the utility model can be practiced without one or more of the specific details, or with other apparatus, systems, assemblies, methods, components, materials, parts, and/or the like. In other instances, well-known structures, materials, and/or operations are not specifically shown or described in detail to avoid obscuring aspects of embodiments of the utility model.

Thus, although the present invention has been described herein with reference to particular embodiments thereof, a latitude of modification, various changes and substitutions are intended in the foregoing disclosures, and it will be appreciated that in some instances some features of the utility model will be employed without a corresponding use of other features without departing from the scope and spirit of the utility model as set forth. Thus, many modifications may be made to adapt a particular situation or material to the essential scope and spirit of the present invention. It is intended that the utility model not be limited to the particular terms used in following claims and/or to the particular embodiment disclosed as the best mode contemplated for carrying out this invention, but that the utility model will include any and all embodiments and equivalents falling within the scope of the appended claims. Accordingly, the scope of the utility model is to be determined solely by the appended claims.

Claims

1. A hair dryer, comprising:

The first duct is arranged in the shell;

the motor is arranged in the first duct;

and the second fan blade is arranged in the casing and/or the blow pipe.

2. The hair dryer of claim 1, wherein said first blade and said second blade rotate coaxially.

3. The hair dryer of claim 1, wherein the second fan blades comprise front fan blades and rear fan blades; the front fan blade is arranged between the first fan blade and the air outlet; the rear fan blade is arranged between the first fan blade and the air inlet end of the casing.

4. The hair dryer of claim 1, wherein the hair dryer comprises a second duct, the second duct is arranged between the first duct and the air inlet end, the second duct is connected with the first duct, and the second fan blade is rotatably installed in the second duct.

5. The blower of claim 4, wherein a first hollow vane is disposed within the second duct; the second fan blade is rotatably installed on the first hollow guide vane.

6. The blower of claim 1, wherein the second fan blade is rotatably mounted within the blower tube.

7. The blower of claim 1, wherein a second hollow guide vane is disposed within an end of the blow tube proximate the air inlet, and the second fan blade is rotatably mounted to the second hollow guide vane.

8. The blower of claim 1, wherein a third hollow guide vane is disposed at an end of the air outlet of the blow tube, and the second fan blade is rotatably mounted to the third hollow guide vane.

9. The hair dryer of claim 1, further comprising an air duct disposed within the housing, the air duct being positioned between the air inlet end and the first duct, and the air duct being in communication with the first duct.

10. The hair dryer of claim 9, wherein the air duct is trumpet-shaped, and an opening area of one end of the air duct close to the air inlet end is larger than an opening area of a communication end of the air duct and the first duct.

11. The hair dryer of claim 1, wherein said housing comprises a first housing and a second housing, said first housing and said second housing being mated to form a receiving cavity.

12. The hair dryer of claim 1, further comprising an air inlet window disposed at an air inlet end of said housing.

13. The hair dryer of claim 1, wherein said air inlet end and said air outlet end are disposed opposite to each other at two ends of said housing.