CN216675012U

CN216675012U - Hair drier

Info

Publication number: CN216675012U
Application number: CN202123416456.0U
Authority: CN
Inventors: 刘俊; 杨彤; 聂文明; 黄振杰
Original assignee: Pursuit Technology Suzhou Co Ltd
Current assignee: Pursuit Technology Suzhou Co Ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-06-07
Anticipated expiration: 2031-12-31

Abstract

The utility model discloses a hair drier, comprising: the shell comprises an air inlet, an air outlet and an air flow channel communicated between the air inlet and the air outlet; an impeller for drawing a gas flow, the impeller being disposed in the gas flow path, the impeller including a plurality of first blades configured to generate thrust in both an axial direction and a centrifugal direction to the gas flowing therethrough; and the guide vane is arranged in the airflow channel and guides the air from the impeller to the air outlet for ejection. The air outlet machine has the advantages of improving the air speed and reducing the sizes of the impeller and the blower.

Description

Hair drier

Technical Field

The present invention relates to a blowing apparatus, and more particularly, to a hair dryer.

Background

The household blower drives the impeller to rotate through the internal motor, sucks outside air into the household blower, and applies work and pressurizes the air. After being heated and guided by the flow channel and the nozzle, the high-speed and high-pressure gas is finally blown to the hair of a person at a certain speed, temperature and direction, so that the effects of hair drying, hair care and the like are achieved.

Some existing low speed blowers use axial flow impeller systems and other pure radial flow impeller systems. The axial flow impeller system has the defects of large size, high rotating speed and low pressure rise, and the impeller outlet of the pure radial flow impeller system has a severe 90-degree turning section, so that large pressure loss can be generated.

Therefore, it is necessary to provide a hair dryer to solve the above problems.

The information disclosed in this background section is only for enhancement of understanding of the general background of the utility model and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a blower which can not only increase the wind speed of the blower, but also reduce the sizes of an impeller and a fan.

To achieve the above object, the present invention provides a hair dryer comprising: the shell comprises an air inlet, an air outlet and an air flow channel communicated between the air inlet and the air outlet; an impeller for drawing a gas flow, the impeller being disposed in the gas flow path, the impeller including a plurality of first blades configured to generate thrust in both an axial direction and a centrifugal direction to the gas flowing therethrough; and the guide vane is arranged in the airflow channel and guides the air from the impeller to the air outlet for ejection.

In one or more embodiments, the impeller further includes a shroud having an inner cavity extending therethrough in an axial direction thereof, and a hub disposed in the inner cavity, and the first blades are connected between the shroud and the hub.

In one or more embodiments, a motor assembly is further disposed in the housing, the motor assembly includes an inner cylinder, and a stator and a rotor that are matched with each other, the stator and the rotor are disposed on the inner cylinder, and an output end of the rotor is connected to the hub.

In one or more embodiments, a first outer cylinder is sleeved on the outer side of one end, close to the impeller, of the inner cylinder, and the guide vanes are arranged on the first outer cylinder.

In one or more embodiments, the first outer cylinder includes a first inner ring and a first outer ring sleeved outside the first inner ring, the guide vanes are disposed between the first inner ring and the first outer ring, and the first inner ring is sleeved and supported on the inner cylinder.

In one or more embodiments, a second outer cylinder is sleeved on the outer side of one end, away from the impeller, of the inner cylinder, the second outer cylinder comprises a second inner ring and a second outer ring sleeved outside the second inner ring, partition plates are arranged between the second inner ring and the second outer ring at intervals, the partition plates divide a space between the second inner ring and the second outer ring into a plurality of air channels, the air channels are communicated between the air outlet and the guide vanes, and the second inner ring is sleeved on and supported on the inner cylinder.

In one or more embodiments, the inner cylinder is provided with a clamping groove for positioning an end of the partition plate.

In one or more embodiments, a clamping groove is formed in one end, away from the impeller, of the inner cylinder, and a clamping portion matched with the clamping groove is convexly extended towards the direction of the inner cylinder from one end, away from the impeller, of the partition plate.

In one or more embodiments, the first outer barrel is removably connected to the second outer barrel by a snap.

In one or more embodiments, an air inlet filter screen is disposed on the housing at the position of the air inlet.

Compared with the prior art, according to the blower, the impeller and the guide vanes are arranged in the shell, the impeller can generate thrust in the axial direction and the centrifugal direction to gas flowing through the blower simultaneously when in work, and the guide vanes can pressurize the air from the impeller and guide the air to the air outlet to be ejected. The size of the impeller can be reduced, and the wind speed, the wind sensation and the hair drying speed can be improved.

Drawings

Figure 1 is a partial schematic view of a hair dryer according to an embodiment of the present invention;

figure 2 is a partial cross-sectional view of a blower according to an embodiment of the present invention;

FIG. 3 is a schematic view of the connection of an inner cylinder and a first outer cylinder according to an embodiment of the present invention;

fig. 4 is a schematic structural view of a second outer cylinder according to an embodiment of the present invention.

Description of the main reference numbers:

1. a housing; 11. an air inlet; 12. an air outlet; 13. an air inlet filter screen; 2. an impeller; 21. a first blade; 22. a wheel cover; 23. a hub; 3. a guide vane; 4. a motor assembly; 41. an inner cylinder; 411. A clamping groove; 412. a card slot; 42. a stator; 43. a rotor; 44. a first outer cylinder; 441. a first outer ring; 442. a first inner ring; 443. buckling; 45. a second outer barrel; 451. a second inner ring; 452. a second outer ring; 453. a partition plate; 454. a clamping part; 455. an air duct.

Detailed Description

The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the specific embodiments.

Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.

As shown in fig. 1 to 3, a blower according to an embodiment of the present invention includes a casing 1, and an impeller 2 and a guide vane 3 disposed in the casing 1.

As shown in fig. 1 and 2, an air inlet 11, an air outlet 12, and an air flow passage communicating between the air inlet 11 and the air outlet 12 are disposed in the housing 1. The air flow channel is understood to be an air flow channel formed by the housing 1 and other components arranged in the housing 1.

The impeller 2 is disposed in the gas flow passage, and the impeller 2 may include a plurality of first blades 21, and the first blades 21 may generate thrust in both axial and centrifugal directions to the gas flowing therethrough when in operation. Thereby serving to increase the air flow velocity and reduce the size of the impeller 2.

The impeller 2 may also include a shroud 22 and a hub 23. The shroud 22 is disposed outside the hub 23, and the first blades 21 are disposed between the shroud 22 and the hub 23 at intervals. The shroud 22, the hub 23 and the first blades 21 form one or more spaces for air flow, which may be understood as a part of the air flow passage.

In one embodiment, as shown in fig. 2, the hub 22 of the impeller 2 may be frustoconical or conical, or the outer periphery of the hub 22 may be angled from its axis, typically at an acute angle. The plurality of first blades 21 may be spirally spaced on the outer circumferential surface of the hub 22 around the axis of the hub 22. In the above arrangement, when the impeller 2 is in operation, the first blades 21 can rotate with the hub 22 and generate thrust in both the axial and centrifugal directions to the gas flowing through.

In one embodiment, the ratio of the maximum diameter of the impeller 22 at the air inlet end to the maximum diameter of the impeller 22 at the air outlet end is (0.4-0.6): 1. in another embodiment, the range of the ratio can be adjusted according to actual needs.

As shown in fig. 2 and 3, a motor assembly 4 is further disposed in the housing 1, the motor assembly 4 may include an inner cylinder 41 and a stator 42 and a rotor 43 which are matched with each other, the stator 42 and the rotor 43 are disposed on the inner cylinder 41, and an output end of the rotor 43 is connected to the hub 23. The inner cylinder 41 has the function of fixing the stator 42, the rotor 43 is partially positioned in the stator 42, and the other part (output end) extends out of the stator 42 and is connected with the hub 23, so that the hub 23 can be driven to rotate, and the function of driving the impeller 2 to work is achieved.

The outer side of the inner cylinder 41 close to one end of the impeller 2 is sleeved with a first outer cylinder 44, and the guide vanes 3 are arranged on the first outer cylinder 44. The guide vane 3 can lift the wind pressure of the air from the impeller 2 and guide it to the air outlet 12. The spiral direction of the guide vane 3 can be the same as that of the first vane 21, so that the wind pressure loss caused by different spiral directions can be avoided.

The first outer cylinder 44 may include a first inner ring 442 and a first outer ring 441 disposed therearound. The first inner ring 442 may be sleeved and coupled to the inner cylinder 41, and the first outer ring 441 may be coupled to the casing 1, thereby functioning to support and fix the motor assembly 4 and the impeller 2.

A plurality of guide vanes 3 are disposed between the first inner ring 442 and the first outer ring 441. The guide vanes 3 serve to support and connect the first inner ring 442 and the first outer ring 441.

As shown in fig. 2 and 4, a second outer cylinder 45 is sleeved on an outer side of one end of the inner cylinder 41, which is away from the impeller 2, the second outer cylinder 45 includes a second inner ring 451 and a second outer ring 452 sleeved thereon, a partition plate 453 is disposed between the second inner ring 451 and the second outer ring 452 at an interval, the partition plate 453 partitions a space between the second inner ring 451 and the second outer ring 452 into a plurality of air channels 455, the air channels 455 are communicated between the air outlet 12 and the guide vanes 3, and the second inner ring 451 is sleeved on and supported by the inner cylinder 41. The plurality of air channels 455 may be understood to form a portion of the airflow path. After the air flows through the inducer 2 under the driving of the inducer 2, the air enters the plurality of air channels 455, and the plurality of air channels 455 can prevent the air flow from forming turbulence in the annular space formed by the second inner ring 451 and the second outer ring 452, thereby reducing the air pressure.

The first outer cylinder 44 is detachably connected to the second outer cylinder 45 by a snap 443. Serving to facilitate the assembly and disassembly of the first outer cylinder 44 and the second outer cylinder 45. The latch 443 can be disposed on the first outer ring 441 of the first outer cylinder 44 and can be latched with the second outer ring 452 of the second outer cylinder 45. The outer side wall or the end facing away from the first outer cylinder 44 of the second outer ring 452 can be connected to the housing 1 and serve to fixedly support the second outer cylinder 45.

The inner cylinder 41 is provided with a holding groove 411. The chucking grooves 411 may position the ends of the partition plates 453, and the chucking grooves 411 and the partition plates 453 may correspond one-to-one. The holding groove 411 functions to facilitate the installation and positioning between the second outer cylinder 45 and the inner cylinder 41.

As shown in fig. 3 and 4, a locking groove 412 may be formed at an end of the inner cylinder 41 away from the impeller 2, and a locking portion 454 matched with the locking groove 412 protrudes from an end of the partition plate 453 away from the impeller 2 toward the inner cylinder 41. The snap portions 454 and the card slots 412 may be in a one-to-one correspondence. The clamping portion 454 and the clamping groove 412 play a role in facilitating the installation and positioning between the second outer cylinder body 45 and the inner cylinder body 41.

The double positioning and fixing of the partition 453 at both ends thereof in the axial direction are achieved by the aforementioned holding groove 411 and the mating catching portion 454 and catching groove 412. The noise generated by the second outer cylinder 45 shaking relative to the inner cylinder 41 when the motor assembly 4 works can be reduced.

As shown in fig. 1, an intake screen 13 is provided on the housing 1 at a position of the intake port 11. The air inlet filter screen 13 can be a porous structure with certain rigidity and through hole rate, and can play a role in filtering, preventing kinking and the like and a certain supporting role for the air inlet 11.

In summary, in the hair dryer of the present invention, the impeller 2 and the guide vane 3 are disposed in the casing 1, the impeller 2 can generate thrust in the axial direction and the centrifugal direction to the gas flowing through at the same time when operating, and the guide vane can pressurize the air from the impeller 2 and guide the air to the air outlet 12 to be ejected. The size of the impeller 2 can be reduced, and the wind speed, wind sensation and hair drying speed can be improved.

The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the utility model to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the utility model and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the utility model and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the utility model be defined by the claims and their equivalents.

Claims

1. A hair dryer, comprising:

the shell comprises an air inlet, an air outlet and an air flow channel communicated between the air inlet and the air outlet;

the impeller is used for sucking airflow and arranged in the airflow channel, and comprises a plurality of first blades which are used for generating thrust in the axial direction and the centrifugal direction simultaneously on the flowing gas; and

and the guide vane is arranged in the airflow channel and guides the air from the impeller to the air outlet for discharging.

2. The blower of claim 1, wherein said impeller further includes a shroud having an interior cavity extending therethrough in the axial direction thereof and a hub disposed within said interior cavity, a plurality of said first blades being connected between said shroud and hub.

3. The hair dryer of claim 2, wherein a motor assembly is further disposed within said housing, said motor assembly comprising an inner barrel and a cooperating stator and rotor disposed on said inner barrel, an output end of said rotor being connected to said hub.

4. The blower of claim 3, wherein a first outer cylinder is sleeved outside one end of the inner cylinder adjacent to the impeller, and a plurality of guide vanes are disposed on the first outer cylinder.

5. The hair dryer of claim 4, wherein said first outer barrel includes a first inner ring and a first outer ring disposed thereon, said plurality of guide vanes being disposed between said first inner ring and said first outer ring, said first inner ring being disposed and supported on said inner barrel.

6. The hair dryer of claim 5, wherein a second outer cylinder is sleeved on an outer side of one end of the inner cylinder, which is far away from the impeller, the second outer cylinder comprises a second inner ring and a second outer ring sleeved on the second inner ring, a partition plate is arranged between the second inner ring and the second outer ring at an interval, the partition plate divides a space between the second inner ring and the second outer ring into a plurality of air channels, the air channels are communicated between the air outlet and the guide vanes, and the second inner ring is sleeved and supported on the inner cylinder.

7. The hair dryer of claim 6, wherein said inner barrel is provided with a holding groove for positioning an end of said partition.

8. The hair dryer of claim 6, wherein a clamping groove is formed at one end of the inner cylinder body, which is far away from the impeller, and a clamping part matched with the clamping groove is convexly arranged at one end of the partition plate, which is far away from the impeller, and faces the direction of the inner cylinder body.

9. The hair dryer of claim 6, wherein said first outer barrel is removably connected to said second outer barrel by a snap fit.

10. The hair dryer of claim 1, wherein an intake screen is disposed on said housing at a location of said intake opening.