CN114073368A

CN114073368A - Airflow reversing piece and hair care appliance with same

Info

Publication number: CN114073368A
Application number: CN202010825624.2A
Authority: CN
Inventors: 喻金明; 肖林; 叶志文
Original assignee: Leshow Electronic Technology Co Ltd
Current assignee: Leshow Electronic Technology Co Ltd
Priority date: 2020-08-17
Filing date: 2020-08-17
Publication date: 2022-02-22

Abstract

The invention relates to the field of household appliances, in particular to an airflow reversing piece and a hair care appliance with the airflow reversing piece. Has stable and reliable structure and can rectify the airflow.

Description

Airflow reversing piece and hair care appliance with same

Technical Field

The invention relates to the field of household appliances, in particular to an airflow reversing piece and a hair care appliance with the airflow reversing piece.

Background

Most hair-dryer on the present market comprises handle and aircraft nose two parts, and handle and aircraft nose are connected, wholly are the T style of calligraphy, because the hair-dryer need bear the great spare part of occupation installation space such as fan unit, heating element, the whole volume of hair-dryer is bigger than normal, occupies great storage space.

The existing hot air comb product has small air quantity and air pressure, and usually comprises two parts: the air flow of the main body part enters the accessory along the axial direction of the main body, and then is blown out from the accessory part, and the direction of the air flow is changed through the action of the accessory, so that the aim of meeting the use habit of a user is fulfilled. When a user uses or stores the air conditioner, the accessory and the main body need to be connected or disassembled, the accessory and the main body are independent parts, a complete air flow path is formed after the accessory and the main body are assembled due to manufacturing and assembling tolerances, and certain loss of air flow volume and air pressure can be caused due to the manufacturing and assembling tolerances.

Disclosure of Invention

To solve the problems of the background art, the present invention provides an air flow reversing member mounted to an inside of a hair care appliance, and a hair care appliance having the air flow reversing member.

The technical scheme and the beneficial effects of the invention are as follows:

an airflow reversing part comprises a plurality of reversing vanes for guiding airflow and changing the flowing direction of the airflow, and a connecting piece for connecting the plurality of reversing vanes, wherein the plurality of reversing vanes are arranged at intervals along the longitudinal axis direction of the plurality of reversing vanes.

The air flow reversing piece has the advantages that the plurality of reversing fins are connected through the connecting piece, the reversing fins and the connecting piece are integrated, the air flow reversing piece is convenient to mount, the structure is more reliable and stable, and deformation is not easy to occur; the plurality of reversing vanes are arranged at intervals along the longitudinal axis direction of the reversing vanes, so that a plurality of strands of independent air flows distributed along the longitudinal axis direction of the reversing vanes can be obtained, and the air flows are rectified.

Preferably, the connecting member connects the plurality of direction changing fins in a direction parallel to the axis of the airflow diverter.

The air flow is guided in the axial direction, and is guided to the direction of the offset axis through the reversing wing pieces, so that the aim of reversing the air flow is fulfilled; the wind resistance is favorably reduced, and the air flow loss is reduced.

Preferably, the air flow is divided into a plurality of air flows equal in number to at least the plurality of turning vanes.

The advantage is, among this technical scheme, the connecting piece is located the one end of switching-over fin, and the air current is drawn by the switching-over fin and is formed the stranded air current, rectifies the air current.

Preferably, the airflow is divided into a plurality of airflows by the plurality of reversing fins and the connecting piece, and the number of the airflows is larger than or equal to that of the reversing fins.

The advantage is, among this technical scheme, the middle part setting that at least part of connecting piece is close to the switching-over fin, and a plurality of airflows are separated into to the air current under the effect of switching-over fin and connecting piece, carry out the rectification to the air current.

Preferably, the reversing fin comprises a first section for guiding the airflow to move along the axial direction of the reversing fin and a second section for changing the direction of the airflow, and the first section is smoothly connected with the second section.

The advantage is that the air flow is slowly redirected, reducing the air flow loss due to the turbulence generated by the air flow turning over sharply.

Preferably, the second section is arcuate.

The air flow reversing device has the advantages that the wind resistance of the reversing fins to air flow is reduced, the loss of the air flow is reduced, and the slow direction change of the air flow is realized.

Preferably, the plurality of reversing vanes are identical in shape.

The multi-air-flow reversing device has the advantages that the multi-air-flow reversing by the reversing vanes is ensured to be in the same direction and angle, and the vortex caused by the different directions of the multi-air-flow is avoided, so that the air quantity and the air pressure are lost.

Preferably, the number of the reversing wing pieces is N, and M is more than or equal to 2 and less than or equal to 10.

The reversing device has the advantages that the reversing can be realized, and the airflow can be rectified without causing great airflow loss; when M is less than 2, and the airflow in the vertical direction is larger, all the airflow in the vertical direction with larger wind power directly rushes to the reversing wing pieces, and partial airflow is forced to be reversed, so that the loss of the airflow is caused; when M is more than 10, the number of the reversing fins is too large, so that the structural complexity is improved, the cost is improved, and when the airflow is divided by a plurality of reversing fins, wind resistance also exists, and the airflow loss can be caused by the too many reversing fins.

Preferably, the plurality of diverting vanes contribute substantially equally to the angle at which the airflow changes.

The airflow reversing piece has the advantages that the directions of the multiple airflows divided by the multiple reversing wings when leaving from the airflow reversing piece are approximately the same, and the air volume or the air pressure or the loss of the air volume and the air pressure caused by collision among the multiple airflows when the multiple airflows leave in different directions are avoided.

A hair care appliance including an air flow diverter as claimed in any one of the preceding claims, the hair care appliance comprising a housing assembly defining an air flow path therein, the air flow diverter being disposed in the air flow path.

The hair care appliance using the airflow reversing piece has the advantages that the shell assembly is internally provided with the part for reversing the airflow, the air flow direction can be changed without accessories, and the defect that the airflow direction can be changed by only using the accessories in the prior art so as to meet the use habit of a user (as mentioned in the background technology) is overcome; because the air flow conversion can be realized without accessories, the hair care appliance in the technical scheme is a complete product, and the appearance effect is better than that of the existing product which can be normally used only by connecting accessories.

Drawings

Fig. 1 is a schematic view of a hair care appliance according to the present invention.

Fig. 2 is an enlarged view of the point Q in fig. 1.

Fig. 3 is a schematic structural view of the air flow reversing piece of the invention.

Fig. 4 is a cross-sectional view of the gas flow diverter of the present invention.

FIG. 5 is a front view of the air flow diverter of the present invention

Fig. 6 is a partial cross-sectional view of a hair care appliance of the present invention.

Fig. 7 is a second partial cross-sectional view of a hair care appliance in accordance with the present invention.

Fig. 8 is a schematic view of the matching structure of the heating assembly and the airflow diverter of the present invention.

The names of the components referred to in the figures are as follows:

1. a housing assembly; 2. an airflow inlet; 3. an airflow outlet; 301. a long side; 4. an airflow diverter; 401. a reversing wing panel; 402. a connecting member; 403. a barrel; 404. a first section; 405. a second section; 5. a heating assembly; 6. a fan unit; A-A', the axis of the housing assembly; B-B', and the axis of the airflow reversing piece.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

Example 1:

as shown in fig. 1 to 8, an ergonomic hair care appliance comprises a housing assembly 1, the housing assembly 1 defines an air flow passage inside, the air flow passage has an air flow inlet 2 for air flow to enter upstream, the air flow passage has an air flow outlet 3 for air flow to exit downstream, a fan unit 6 is arranged inside the housing assembly 1 for air flow to enter from the air flow inlet 2 into the housing assembly 1, wherein the housing assembly 1 is cylindrical, the air flow inlet 2 and the air flow outlet 3 are both arranged on the housing assembly 1, the air flow outlet 3 is arranged on a side wall of the housing assembly 1, a long side 301 of the air flow outlet 3 is arranged along the height direction of the housing assembly 1, the air flow in the air flow passage flows along the axial direction of the housing assembly 1 before exiting the air flow outlet 3, an airflow reversing piece 4 for changing the airflow flowing direction in the airflow passage is further arranged in the shell assembly 1, and the airflow in the airflow passage is discharged from the airflow outlet 3 under the action of the airflow reversing piece 4.

The technical scheme has the advantages that the shell component 1 of the hair care appliance is in a slender column shape in appearance, tends to be concise, has small volume and is convenient to store and carry; the shell assembly 1 is in a long and thin column shape, the airflow outlet 3 is arranged on the side wall of the shell assembly 1, the human engineering is met, an accessory for reversing airflow is not needed, the use is more convenient, and the cost is reduced; the long edge 301 of the airflow outlet 3 is arranged along the height direction of the shell assembly 1, so that the long edge 301 of the airflow outlet 3 is consistent with the hair growth direction (referring to the structure of a common comb) when in use, the hair is blown along the hair growth direction, the hair can be shaped easily, the hair is not messy easily when being dried, the hair is convenient to sweep along the hair growth direction in the use process, and the hair drying device is in line with the ergonomics; the air flow reversing piece 4 is arranged in the shell component 1, the air flow along the axial direction of the shell component 1 is converted into the direction and then blown out from the air flow outlet 3 positioned on the side wall of the shell component 1, the conversion of the air flow direction can be completed without accessories, and the defect that the air flow direction conversion can be realized only by applying accessories in the prior art so as to meet the use habit of users (as mentioned in the background technology) is overcome; because the air flow conversion can be realized without accessories, the hair care appliance in the technical scheme is a complete product, the appearance effect is better than that of the existing product which can be normally used only by connecting accessories, and the matching gaps and lines generated by unnecessary connecting structures are reduced; the change of the airflow direction is realized through the airflow reversing piece 4, so that the loss of the air quantity, the air pressure and the air speed generated by forcibly changing the direction of the airflow is avoided; the airflow reversing piece 4 is integrated in the shell assembly 1, so that the integration of the product is higher.

In this example, the shape of the airflow outlet 3 may be a strip shape, an annular shape, or a combination of various shapes; when the airflow outlet 3 is annular, the long side refers to the height direction thereof.

In this example, the gas flow outlet 3 has one or more, and when there is one, it may have a single shape such as a bar shape or a ring shape; when the number of the metal wire is plural, the metal wire may be a combination of plural strips or plural rings, and may be a combination of plural shapes.

In this case, the housing assembly 1 has walls with a varying thickness, which facilitate the mounting and fixing of the internal structural components of the housing assembly 1.

The air flow diverter 4 in this example can be a separate component from the housing assembly 1, assembled with the housing assembly 1 by mechanical connection; it is also possible to provide a member extending from the inner wall of the housing assembly 1, which member is part of the housing assembly 1.

The air flow in the air flow path is blown out from the air flow outlet 3 in a direction deviating from the original moving direction after passing through the air flow reversing member 4, and the angle deviating from the axis of the shell assembly 1 depends on the position relation of the air flow outlet 3 and the axis of the shell assembly 1. Further, the airflow is discharged from the airflow outlet 3 in a direction substantially perpendicular to the axis a-a' of the housing assembly 1 after being acted on by the airflow diverter 4. The advantage is that the direction of the air flow outlet 3 on the housing assembly 1 and the shape of the housing assembly 1 make it possible to discharge the air flow from the air flow outlet 3 at an angle to the axis a-a ' of the housing assembly 1. in this solution, by discharging the air flow from the air flow outlet 3 in a direction substantially perpendicular to the axis a-a ' of the housing assembly 1, it is more in line with the usage habit of the user, i.e. the air flow outlet 3 is parallel to the axis a-a ' of the housing assembly 1, and the air flow discharged from the air flow outlet 3 can reach the hair surface at the same time, which is ergonomic and beneficial to improve the uniformity of the dried hair. In addition, the technical scheme is also beneficial to obtaining the airflow reversing piece 4 with a simple structure and reducing the structural complexity.

As shown in fig. 2, 6 and 7, the airflow diverter 4 directs the airflow to the airflow outlet 3. The air flow reversing device has the advantages that the direction of the air flow is changed under the guidance of the air flow reversing piece 4, the air flow is successfully reversed, the air flow reaches the air flow outlet 3 along the preset track and is discharged from the air flow outlet 3, and the air flow diffusion or loss caused by the matching gap between the air flow reversing piece 4 and the air flow outlet 3 can be reduced. Preferably, the airflow diverter 4 is partially abutted against the inner wall of the housing assembly 1 defining the airflow outlet 3 to minimize airflow loss, and is formed to partially shield the airflow outlet 3 so that fingers or foreign objects cannot easily reach the internal charged components from the airflow outlet 3.

The axis B-B' of the air flow diverter 4 is parallel to the long side 301 of the air flow outlet 3. The air flow reversing device has the advantages that the air flow after the action of the air flow reversing piece 4 is discharged from the air flow outlet 3 through the shortest distance and the smallest obstruction as possible, and the air flow loss is reduced.

The axis B-B 'of the air flow diverter 4 is parallel to the axis A-A' of the housing assembly 1. The advantages are that on the one hand, the assembly of the air flow reversing element 4 in the housing component 1 is facilitated; on the other hand, the air flow can enter the air flow reversing piece 4 through the shortest path, and the loss generated when the air flow enters the air flow reversing piece 4 is reduced as much as possible; and the air flow reversing piece 4 can extend in the shell component 1 for enough length to slowly reverse the air flow, so that the turbulent flow generated by over-quick reversing is reduced.

Further, the airflow reversing piece 4 is arranged concentrically with the shell assembly 1, namely the axes of the airflow reversing piece and the shell assembly are the same, so that on one hand, the assembly of the airflow reversing piece 4 in the shell assembly 1 is facilitated; on the other hand, the air flow enters the air flow reversing piece 4 through the shortest path, so that the loss generated when the air flow enters the air flow reversing piece 4 is reduced as much as possible; the air flow reversing piece 4 can extend in the shell component 1 for enough length to slowly reverse the air flow, so that the turbulence generated by over-quick reversing is reduced; and the internal space of the shell component 1 is fully utilized, the structure is compact, the shell component 1 is favorably provided with a smooth outer surface, and unnecessary outer surface bulges can be reduced and avoided as much as possible.

As shown in fig. 2 to 5 and fig. 7, the airflow diverter 4 includes a plurality of diverter fins 401 for changing the airflow direction, and the diverter fins 401 are disposed at intervals along the long side 301 of the airflow outlet 3. The air flow direction can be changed by the plurality of reversing vanes 401, and the structure tends to be simple; because the long edge 301 of the airflow outlet 3 is arranged along the height direction of the shell, the arrangement mode of the plurality of reversing fins 401 in the technical scheme is favorable for enabling the airflow in the shell assembly 1 to be discharged from the airflow outlet 3 as much as possible in unit time, namely, the air output in unit time is improved, and the complexity of the matching structure of the reversing fins 401 and the airflow outlet 3 is reduced. Particularly, the housing assembly 1 is cylindrical, the width of the airflow outlet 3 in the present invention is not very large, and if the plurality of reversing fins 401 are arranged along the width direction of the airflow outlet 3, the airflow partially reversed by the reversing fins 401 may not be discharged from the airflow outlet 3, resulting in loss of air volume; and may also limit the number of reversing wings 401 to achieve the desired reversing effect. More specifically, the transverse edge of the reversing wing 401 forms a certain angle with the length direction of the airflow reversing member 4, and preferably, the transverse edge of the reversing wing 401 is perpendicular to the length direction of the airflow reversing member 4. Furthermore, the transverse edge of the reversing fin 401 crosses the width direction of the airflow outlet 3, and one part of the transverse edge is abutted against the inner wall of the shell assembly 1 for limiting the airflow outlet 3, and the reversing fin 401 shields the part of the airflow outlet 3, so that the internal charged components can be prevented from being touched from the airflow outlet 3, and the safety is higher; and the airflow outlet 3 does not need an air outlet net, thereby reducing the structural complexity and the cost of the product.

The plurality of diverting vanes 401 are observable from the airflow outlet 3. The device has the advantages that the electrified components in the reversing wings 401 are shielded, so that the electrified components in the shell cannot be touched from the airflow outlet 3, the safety performance of the device is improved, and the safety requirement is met.

As shown in fig. 7, the length h2 of the airflow outlet 3 is greater than or equal to the distance h1 between the top of the last reversing wing 401 and the base of the first reversing wing 401. The air flow after being reversed by the reversing wings 401 is ensured to be blown out from the air flow outlet 3, and the air flow is prevented from being blocked by the shell assembly 1 to generate air flow loss as much as possible. Each of the turning vanes 401 has a tendency to extend in the axial direction of the airflow diverter 4 (i.e., the end of the turning vane 401 near the airflow outlet 3 is at a distance from the end thereof near the airflow inlet 2).

The reversing flap 401 is tongue-shaped. Advantageously, the losses that occur as the airflow passes over the reversing wings 401 are reduced, allowing the airflow to be drawn along the surfaces of the reversing wings 401 and discharged from the airflow outlet 3. The surface of the reversing wing 401 facing the airflow inlet 3 is smooth, and the surface is the surface through which the airflow passes, so that the loss generated when the airflow passes through the reversing wing 401 can be reduced.

The airflow diverter 4 further comprises a connecting piece 402, wherein the connecting piece 402 connects the plurality of diverter blades 401 in a direction parallel to the axis of the airflow diverter 4. The air flow reversing piece 4 is a single piece, so that the air flow reversing piece 4 is convenient to mount on the shell assembly 1, and the obstruction factor to air flow caused by assembly error is reduced. The connecting piece 402 may be connected to the end of the reversing wing 401 near the airflow inlet 2, and the other end may be suspended, or may be connected to the middle of the adjacent reversing wing 401. Or other means of connecting a plurality of reversing tabs 401.

When the connecting pieces 402 are all connected to the end portions of the reversing wings 401 close to the airflow inlet 2, the airflow passing through the airflow reversing member 4 is divided into N airflows, N = the number of the reversing wings 401.

When the connecting pieces 402 connect the middle portions of adjacent reversing fins 401, the airflow passing through the airflow reversing piece 4 is divided into N airflows, N = the number of reversing fins 401 × 2 or N = the number of reversing fins 401.

The number of N depends on how the connecting piece 402 cooperates with the reversing tabs 401. When the connecting piece 402 extends transversely to the end of the reversing fin 402 near the airflow outlet 3, N = the number of reversing fins 401 × 2; when there is a certain gap between one end of the reversing fin 401 near the airflow outlet 3 and the longitudinal end face of the connecting member 402, N = the number of the reversing fins 401, that is, the number of the airflow streams passing through the airflow reversing member 4, there is a process of changing from 2 × the number of the reversing fins 401 to the number of the reversing fins 401, and mixing at the aforementioned gap.

There are three cases where n =1, n = 401, and n = 2, the number of independent gas streams discharged from the gas stream outlet 3. When N =1, the end of the reversing vane 401 close to the airflow outlet 3 has a certain gap from the side wall defining the airflow outlet 3, and a certain gap exists between the longitudinal end face of the connecting piece 402 and the airflow outlet 3, N = the number of the reversing vanes 401 or N = the number of the reversing vanes 401 × 2; when N = the number of the reversing vanes 401, the airflow passing through the airflow reversing member 4 is divided into N = the number of the reversing vanes 401 and the end of the reversing vanes 401 near the airflow outlet 3 abuts against the side wall defining the airflow outlet 3; when N = the number of the reversing vanes x 2, the airflow passing through the airflow reversing member 4 is divided into N = the number of the reversing vanes 401 x 2, and the end portion of the reversing vane 401 near the airflow outlet 3 abuts against the side wall defining the airflow outlet 3, and the connecting member 402 extends to the airflow outlet 3 (i.e., the longitudinal end surface of the connecting member 402 thereof is located on the same plane as the airflow outlet 3). The connecting piece 402 is a baffle, and the plurality of reversing wings 401 are respectively arranged on two sides of the baffle. The baffle plate can pull the airflow, and the airflow passing through the airflow reversing piece 4 is pulled by at least two surfaces of the airflow reversing piece, so that the direction of the airflow is guided and changed, and the airflow is gathered; the baffle can increase and the area of contact of switching-over fin 401 rather than with it, can improve switching-over fin 401 rather than joint strength, makes air current switching-over piece 4 be difficult to warp, reduces because the deformation of air current switching-over piece 4 produces the influence to the air current parameter.

The shell component 1 is also internally provided with a heating component 5 for heating the airflow in the airflow passage, and the heating component 5 is parallel to the axis B-B' of the airflow reversing piece 4. Through the setting of heating element 5, the air current that makes blow off from air outlet 3 is the hot air current, the quick drying hair of being convenient for, and because casing assembly 1 among this technical scheme is long and thin column, how to rationally the position relation of each spare part in the casing, can reach first the designing requirement, make heating element 5 and air current reversing member 4's axis parallel, can make full use of casing assembly 1's inner space, obtain the hair care implement compact in design, small, can reduce the loss when the air current in the air current route passes through each part of arranging in casing assembly 1 again.

In this example, the downstream of the heating assembly 5 abuts against at least the bottom end of one of the reversing wings 401, so that the airflow flowing out of the heating assembly 5 directly passes through the reversing wing 4, and the airflow loss is reduced. It will be appreciated that the downstream heating assembly 5 may abut the bottom ends of all of the reversing wings 401.

In this case, the heating module 5 is spaced apart from the fan unit 6 by a distance to prevent the fan unit 6 from being damaged by the radiant heat generated from the heating module 5.

Preferably, the heating assembly 5 and the airflow diverter 4 are arranged concentrically, i.e. the axes of the two are the same; the loss of the air flow in the air flow path through the components arranged in the housing assembly 1 is reduced as much as possible, while at the same time a more compact structural arrangement is obtained, which can try to overcome the undesired bulges, bulges on the outer surface of the housing assembly 1.

Further preferably, the airflow diverter 4 is arranged concentrically with the housing assembly 1, i.e. the axes of the airflow diverter and the housing assembly are the same; the housing assembly 1 defines an airflow path, and in this example, the airflow reversing member 4, the heating assembly 5, and the housing assembly 1 are concentrically arranged, so that on one hand, the loss of the airflow in the airflow path when the airflow passes through each component arranged in the housing assembly 1 is reduced as much as possible, and on the other hand, a more compact structural layout is obtained, and the undesirable bulge and protrusion on the outer surface of the housing assembly 1 can be overcome as much as possible.

Further preferably, the fan unit 6 is arranged concentrically with the air flow diverter 4, i.e. with the same axis. When other components parallel to the axis of the heating assembly 5 are arranged in the shell assembly 1, the technical scheme can ensure that the arrangement of the components fully utilizes the space in the shell assembly 1 and overcomes the undesirable bulges and bulges on the outer surface of the shell assembly 1 due to the arrangement of the components.

In this case, the heating assembly 5 is located upstream of the air flow diverter 4. The air current is heated after heating element 5, discharges from air current export 3 through air current switching-over piece 4 again, makes the air current that is heated have one section and carry out the air current of heat exchange with cold air before air current export 3, can effectively reduce the hot spot.

The fan unit 6 is located upstream of the heating assembly 5. The fan unit 6 comprises a motor and fan blades, and the scheme ensures that cold air flow firstly passes through the fan unit 6 and then passes through the heating assembly 5, so that the motor is prevented from being damaged by hot air flow.

The airflow reversing piece 4 comprises an axial flow guiding section for guiding airflow to move along the axial direction of the airflow reversing piece, and a turning section for changing the moving direction of the airflow, and the turning section extends to the airflow outlet 3. The air flow reaches the air flow outlet 3 along a preset track and is discharged from the air flow outlet 3, so that the air flow diffusion or loss caused by the matching gap between the air flow reversing piece 4 and the air flow outlet 3 can be reduced.

As shown in fig. 8, the airflow reversing member 4 further includes a cylinder 403, and the cylinder 403 is connected to the plurality of reversing fins 401, so as to improve the strength of the airflow reversing member 4, make the airflow reversing member 4 not easily deform, and reduce the influence on the airflow parameters due to the deformation of the airflow reversing member 4; the heating assembly 5 is located at the upstream of the airflow reversing piece 4, airflow is heated after passing through the heating assembly 5 and is exhausted from the airflow outlet 3 through the airflow reversing piece 4, so that a section of airflow which exchanges heat with cold air is arranged in front of the heated airflow passing through the airflow outlet 3, and hot spots can be effectively reduced.

The heating element 5 extends partially into the barrel 403. On one hand, the airflow passing through the heating assembly 5 completely enters the cylinder 403, and the cylinder 403 gathers and rectifies the airflow, so that the airflow can pass through the reversing fins 401 in a gathered form, and the airflow is rectified and reversed by the reversing fins 401 conveniently; on the other hand, the outer peripheral wall of the cylinder 403 forms a positioning when it is installed in the housing assembly 1, improving the installation reliability of the airflow diverter 4; thirdly, the heating component 5 and the airflow reversing piece 4 are formed into a component and then are arranged in the shell component 1, so that the assembly convenience is improved, and the heating component 5 and the airflow reversing piece 4 mutually give an axial force to the other side, so that the assembly reliability is improved.

The axial flow-inducing segment in this example comprises a portion of the barrel 403, and a first section 404 of the plurality of reversing vanes 401; the turning section comprises a second section 404 of a plurality of reversing vanes 401.

Example 2:

this example generally describes an airflow diverter 4 for mounting within a hair care appliance to change the direction of airflow within the appliance, as described below.

As shown in fig. 3 to 5, an airflow diverter 4 includes a plurality of diverter blades 401 for guiding an airflow and changing the flow direction of the airflow, and a connecting member 402 for connecting the plurality of diverter blades 401, the plurality of diverter blades 401 are arranged at intervals along the longitudinal axis direction thereof, and the flow velocity of the airflow before passing through the airflow diverter 4 is greater than the flow velocity after reversing. The air flow reversing piece has the advantages that the plurality of reversing fins 401 are connected through the connecting piece 402, the reversing fins 401 and the connecting piece 402 are integrated, the air flow reversing piece 4 is convenient to mount, the structure is more reliable and stable, and deformation is not easy to occur; the plurality of reversing fins 401 are arranged at intervals along the longitudinal axis direction of the reversing fins, so that a plurality of strands of independent air flows distributed along the longitudinal axis direction of the reversing fins can be obtained, and the air flows are rectified; the airflow reversing piece 4 reduces the flow velocity of the airflow, thereby being beneficial to obtaining the wind pressure suitable for the habit of a user and reducing the oppressive feeling of the user when the wind pressure is too large.

Further, the flow speed of the air flow before passing through the air flow reversing piece 4 is larger than the flow speed after reversing. The airflow reversing piece 4 reduces the flow velocity of the airflow, thereby being beneficial to obtaining the wind pressure suitable for the habit of a user and reducing the oppressive feeling of the user when the wind pressure is too large.

The connecting member 402 connects the plurality of direction changing fins 401 in a direction parallel to the axis of the airflow diverter 4. The air flow is guided in the axial direction, and the air flow net is guided in the direction deviating from the axial direction through the reversing wing pieces 401, so that the aim of reversing the air flow is fulfilled; the wind resistance is favorably reduced, and the air flow loss is reduced.

The air flow is divided into a plurality of air flows equal to the number thereof by at least the plurality of turning vanes 401. The air flow rectifying device has the advantages that in the technical scheme, the connecting piece 402 is arranged at one end of the reversing wing piece 401, and the air flow is drawn by the reversing wing piece 401 to form a plurality of air flows to rectify the air flow.

The airflow is divided into a plurality of airflows with the number being equal to or greater than the number of the reversing fins 401 by the plurality of reversing fins 401 and the connecting piece 402. The air flow is divided into a plurality of air flows under the action of the reversing wing pieces 401 and the connecting pieces 402, and the air flows are rectified. Specific examples have already been described in detail in embodiment 1, and are not described again here.

The turning vane 401 includes a first section 404 for guiding the airflow to move along the axial direction thereof, and a second section 405 for changing the direction of the airflow, and the first section 404 and the second section 405 are smoothly connected. The advantage is that the air flow is slowly redirected, reducing the air flow loss due to the turbulence generated by the air flow turning over sharply.

The second section 405 is arcuate. The air flow reversing device has the advantages that the wind resistance of the reversing wing pieces 401 to air flow is reduced, the loss of the air flow is reduced, and the slow direction change of the air flow is realized.

The plurality of commutation fins 401 are identical in shape. The air quantity and the air pressure are lost due to the fact that the multiple air flows reversed by the reversing vanes 401 are ensured to be in the same direction and angle, and eddy currents caused by the fact that the multiple air flows are different in direction are avoided.

The number of the reversing wing pieces 401 is M, and M is more than or equal to 2 and less than or equal to 10. The reversing device has the advantages that the reversing can be realized, and the airflow can be rectified without causing great airflow loss; when M is less than 2, and the airflow is large, all the airflows in the vertical direction with large wind power directly impact the reversing wing pieces 401, and part of the airflows are forced to be reversed, so that the loss of the airflow is caused; when M is greater than 10, the number of the reversing fins 401 is too large, so that the structural complexity is increased and the cost is increased, and when the airflow is divided by a plurality of the reversing fins 401, wind resistance exists, and the excessive reversing fins 401 also cause loss of airflow. Preferably M = 4.

The plurality of turning vanes 401 substantially contribute to the angle at which the air flow changes. The airflow reversing piece 4 has the advantages that the directions of the multiple airflows separated by the multiple reversing wings 401 when the multiple airflows leave from the airflow reversing piece 4 are approximately the same, and the air volume or the air pressure or the loss of the air volume and the air pressure caused by collision among the multiple airflows when the multiple airflows leave in different directions is avoided.

As shown in fig. 1, 2, 6 to 8, when the air flow direction changing member 4 in this example is applied to a hair care appliance, the fitting and positional relationship of the air flow direction changing member 4 to the respective components of the appliance refer to those described in embodiment 1.

Example 3:

the air flow reversing piece 4 in the embodiment 1 can be a reversing blade which is integrally arranged with the shell assembly 1, and the matching and position relationship between the reversing blade and each component of the hair care appliance refer to the embodiment 1.

Example 4:

this embodiment differs from embodiment 1 in that the heating unit 5 is disposed eccentrically to the housing unit 1, and the heating unit 5 is disposed concentrically to the airflow direction changing member 4. It is also implicit in this example that the flow reverser 4 and the housing assembly 1 are not concentrically arranged.

When other components parallel to the axis of the heating assembly 5 are arranged in the shell assembly 1, the technical scheme can ensure that the arrangement of the components fully utilizes the space in the shell assembly 1 and overcomes the undesirable bulges and bulges on the outer surface of the shell assembly 1 due to the arrangement of the components.

Example 5:

this embodiment differs from embodiment 1 in that the fan unit 6 is arranged eccentrically with respect to the housing assembly 1 and the heating assembly 5 is arranged concentrically with respect to the air flow diverter 4. When other components parallel to the axis of the fan unit 6 are arranged in the shell assembly 1, the technical scheme can ensure that the arrangement of the components fully utilizes the space in the shell assembly 1 and overcomes the undesirable bulges and bulges on the outer surface of the shell assembly 1 due to the arrangement of the components.

The heating component 5, the airflow reversing piece 4 and the fan unit 6 are concentrically arranged, namely, the heating component 5, the airflow reversing piece 4 and the fan unit 6 are not concentric with the shell component 1; the heating component 5 and the airflow reversing piece 4 are arranged concentrically with the shell component 1, and the fan unit 6 is arranged eccentrically with the shell component 1; the heating assembly 5, the airflow reversing piece 4, the fan unit 6 and the shell assembly 1 are all not concentric, the heating assembly 5, the airflow reversing piece 4 and the fan unit 6 are not concentric, but the heating assembly 5 and the airflow reversing piece 4 are arranged concentrically.

Example 6:

the present embodiment differs from embodiment 1 in that the long sides of the gas flow outlet 3 are arranged perpendicular to the axial direction a-a' of the housing assembly 1.

The above-described embodiments are merely preferred embodiments of the present invention, not all embodiments of the present invention, and various modifications may be made by those skilled in the art according to the principle of the present invention without departing from the spirit of the present invention, which is defined by the scope of the appended claims.

Claims

1. An airflow diverter, characterized by comprising a plurality of diverting vanes for guiding airflow and changing the flow direction of the airflow, and a connecting piece for connecting the diverting vanes, wherein the diverting vanes are arranged at intervals along the longitudinal axis direction.

2. A gas flow diverter according to claim 1, wherein said connecting member connects said plurality of diverter vanes in a direction parallel to said gas flow diverter axis.

3. An airflow diverter according to claim 2, wherein said airflow is divided into a plurality of airflows equal in number to at least said plurality of diverter flaps.

4. The airflow diverter according to claim 2, wherein the airflow is divided into a plurality of airflows by the plurality of diverter vanes and the connector, the number of airflows being equal to or greater than the number of diverter vanes.

5. A gas flow diverter according to claim 1, wherein the diverter flap comprises a first section for directing the gas flow in the direction of its axis and a second section for changing the direction of the gas flow, the first section being smoothly connected to the second section.

6. The airflow diverter of claim 5, wherein the second section is arcuate.

7. The airflow diverter of claim 1, wherein the plurality of diverter vanes are identical in shape.

8. An air flow diverter according to claim 1, wherein the number of diverter vanes is M, 2 ≦ M ≦ 10.

9. The airflow diverter of claim 1, wherein the plurality of diverter vanes contribute substantially the same to the angle of change of the airflow.

10. A hair care appliance comprising an air flow diverter according to any one of claims 1 to 9, the hair care appliance comprising a housing assembly defining an air flow path therein, the air flow diverter being disposed in the air flow path.