CN217104876U - Hair drier - Google Patents

Abstract

The utility model belongs to the technical field of garden instrument, concretely relates to hair-dryer, include: the volute comprises a volute body, wherein at least two impeller cavities are formed in the volute body, air inlets corresponding to the impeller cavities are formed in at least one end face of the volute body, air outlets are formed in the side face of the volute body, and the impeller cavities are respectively communicated with the air outlets; the impeller is provided with at least two impellers, and each impeller is arranged in each impeller cavity; the driving element is in transmission connection with the impellers so as to drive each impeller to rotate; a blow tube assembly connected to the air outlet. The utility model discloses set up two or more than two impeller cavities in a spiral case, every impeller cavity sets up an impeller respectively, and the air current that each impeller produced assembles in the mouth of blowing, the utility model discloses when guaranteeing hair-dryer compact structure, greatly promoted the wind speed and the amount of wind of hair-dryer, satisfy the user demand under the complicated operating mode.

Description

Hair drier

Technical Field

The utility model belongs to the technical field of garden instrument, concretely relates to hair-dryer.

Background

The traditional centrifugal blower is generally driven by a single impeller, the air speed and the air volume are limited in performance improvement, the product efficiency can be improved only by improving the power of a product, but the voltage of a general direct-current electric tool product is about 80v of a platform, the current is about 30A, the lifting space is very limited, the cruising ability of the product is improved only even if a double-battery pack or a multi-battery pack is adopted, the improvement of the working performance is not large, and the use requirement under a complex working condition is difficult to meet.

SUMMERY OF THE UTILITY MODEL

In view of the above shortcoming of the prior art, the utility model aims to provide a can effectively promote wind speed, amount of wind to satisfy the hair-dryer of complicated operating mode user demand.

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

the volute comprises a volute body, wherein at least two impeller cavities are formed in the volute body, air inlets corresponding to the impeller cavities are formed in at least one end face of the volute body, air outlets are formed in the side face of the volute body, and the impeller cavities are respectively communicated with the air outlets;

the impeller is provided with at least two impellers, and each impeller is arranged in each impeller cavity;

the driving element is in transmission connection with the impellers so as to drive each impeller to rotate;

a blow tube assembly connected to the air outlet.

In an optional embodiment of the present invention, a heat dissipation hole is disposed on an end surface of the spiral case opposite to the air inlet, the driving element is installed outside the heat dissipation hole, and an output shaft of the driving element passes through the heat dissipation hole and is connected to the impeller.

The utility model discloses an optional embodiment, the impeller includes the discoid base member, the base member is faced be equipped with main fan blade on the quotation of air intake one side, the base member is faced be equipped with the auxiliary fan blade on the quotation of louvre one side.

In an optional embodiment of the present invention, the battery pack further comprises a battery pack and a PCB assembly, wherein the battery pack is electrically connected to the PCB assembly, and the PCB assembly is electrically connected to the driving element.

In an optional embodiment of the present invention, a handle assembly is disposed on the blowing tube assembly, a control assembly for controlling the driving element to move is disposed on the handle assembly, and the control assembly is electrically connected to the PCB assembly through a cable.

In an alternative embodiment of the present invention, the blowpipe assembly includes at least one length of flexible pipe.

In an optional embodiment of the present invention, the air conditioner further comprises a front cover, the front cover is installed on the end of the spiral case opposite to the air inlet, and the driving element is installed in the front cover.

In an optional embodiment of the present invention, a battery pack compartment for accommodating a battery pack is formed on the front cover.

The quantity of battery package is 2, the direction of insertion of battery package with the axis of air outlet is the angle setting.

In an optional embodiment of the present invention, the front cover is connected to a wearing assembly, and the wearing assembly at least includes a shoulder strap and/or a waist belt.

In an optional embodiment of the present invention, the driving element includes a motor, and the motor is provided with at least two motors, each of the motors independently driving one of the impellers.

In an optional embodiment of the present invention, the motor is accommodated in the front cover, one end of the motor is abutted against the spiral casing, and the other end of the motor is abutted against the front cover.

In an optional embodiment of the present invention, the edge of the end of the motor abutting on the spiral case is provided with at least two lugs extending in a radial direction, and the lugs are arranged along the circumferential direction of the motor at intervals, and the spiral case is provided with a first positioning groove for accommodating the lugs.

In an optional embodiment of the present invention, the lug is sleeved with a buffer sleeve made of an elastic material.

In an optional embodiment of the present invention, the motor side wall is provided with a cushion pad made of an elastic material, the cushion pad is located between two adjacent lugs, and the spiral case is provided with a second positioning groove for accommodating the cushion pad.

The technical effects of the utility model reside in that:

the utility model discloses set up two or more than two impeller cavities in a spiral case, every impeller cavity sets up an impeller respectively, and the air current that each impeller produced assembles in the mouth of blowing, the utility model discloses when guaranteeing hair-dryer compact structure, greatly promoted the wind speed and the amount of wind of hair-dryer, satisfy the user demand under the complicated operating mode.

The heat dissipation holes can communicate the space where the driving element is located with the impeller cavity, and the impeller can dissipate heat of the driving element when working, so that the practical service life of the driving element is prolonged; when the utility model is applied to the backpack blower, the comfort of the user can be improved by reducing the working temperature of the driving element through the heat dissipation holes; the auxiliary fan blade can suck air flow around the driving element, and the heat dissipation effect is improved.

The utility model discloses an every motor is controlled respectively to independent PCB subassembly, can carry out independent control to the rotational speed of every impeller to carry out accurate allotment to wind speed and amount of wind according to the actual demand.

The utility model discloses a motor is pressed from both sides between protecgulum and spiral case, and the cooperation of lug and first constant head tank can restrict motor circumference position, does not have rigid connection between motor and spiral case and the protecgulum, consequently can isolate the vibration that the motor during operation produced to a certain extent, and the dismouting of the motor of being convenient for simultaneously is maintained.

Drawings

Figure 1 is an exploded view of a hair dryer provided in an embodiment of the present invention;

fig. 2 is an exploded view of a volute provided by an embodiment of the present invention;

FIG. 3 is an enlarged view of section I of FIG. 2;

fig. 4 is an exploded view of a main body part of a hair dryer according to an embodiment of the present invention;

fig. 5 is an exploded view of the drive unit and impeller provided in an embodiment of the present invention;

FIG. 6 is a schematic view of an assembly structure of the volute and the blow-pipe assembly according to an embodiment of the present invention;

fig. 7 is a schematic perspective view of a blower according to an embodiment of the present invention;

fig. 8 is a schematic perspective view of a wearing assembly according to an embodiment of the present invention;

fig. 9 is a schematic perspective view of a blower mounted with a wearing assembly according to an embodiment of the present invention.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the features in the following embodiments and examples may be combined with each other without conflict.

It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the drawings only show the components related to the present invention rather than being drawn according to the number, shape and size of the components in actual implementation, and the form, amount and ratio of the components in actual implementation may be changed arbitrarily, and the layout of the components may be more complicated.

Referring to fig. 1-9, the technical solution of the present invention will be described in detail below in connection with a backpack hair dryer, which mainly includes a main body part, a blowing tube assembly 40 and a wearing assembly 60. It will be appreciated that the main body portion of the present invention may be applied not only to backpack hair dryers, but also to other types of hair dryers, such as hand held hair dryers.

Referring to fig. 1-9, the main body of the present invention mainly includes a volute 10, an impeller 20, a driving element 30, and necessary power supply module, such as a battery pack 51, and a control module, such as a PCB assembly 53. It can be understood that the energy supply module in the utility model is not limited to a certain type and spatial distribution, in practical application, can carry out rational design and overall arrangement according to specific user demand.

Referring to fig. 2, at least two impeller cavities 101 are formed in the volute 10, an air inlet 102 corresponding to each impeller cavity 101 is formed in at least one end surface of the volute 10, an air outlet 103 is formed in a side surface of the volute 10, and each impeller cavity 101 is respectively communicated with the air outlet 103; the embodiment shown in fig. 2 comprises two impeller chambers 101, it being understood that the possibility of one volute 10 comprising more impeller chambers 101 is not excluded, as space conditions allow, for example three impeller chambers 101 or more.

Referring to fig. 1 and 2, in an embodiment, the volute 10 is assembled by a front half shell 11 and a rear half shell 12, and the front half shell 11 and the rear half shell 12 have substantially symmetrical profiles, which is beneficial to simplify the manufacturing process of the volute 10, make the volute 10 easier to machine and form, and reduce the manufacturing cost.

Referring to fig. 4, at least two impellers 20 are provided, and each impeller 20 is respectively disposed in each impeller cavity 101; in the embodiment shown in fig. 4, two impellers 20 are provided, and it is understood that the number of impellers 20 should correspond to the number of impeller cavities 101, for example, when the scroll casing 10 includes three impeller cavities 101, one impeller 20 should be installed in each impeller cavity 101.

Referring to fig. 4 and 5, the driving element 30 is in transmission connection with the impellers 20 to drive each of the impellers 20 to rotate; in a specific embodiment, the driving element 30 may be, for example, a motor, the number of which may be, for example, the same as the number of impellers 20, each motor driving one impeller 20 to rotate; it will be understood that the possibility that one motor may drive a plurality of impellers 20 under the condition that the power of the motor is sufficient is not excluded, for example, when one motor drives two impellers 20 to rotate, a transfer case may be connected to the output end of the motor to transmit the power of the motor to the two impellers 20, and it should be noted that, in order to ensure that the performance of the hair dryer meets the requirements of relatively complicated working conditions, it is preferable to adopt a structure in which each motor independently drives one impeller 20.

Referring to fig. 1, 6, 7 and 9, the blowing pipe assembly 40 is connected to the air outlet 103, it can be understood that the blowing pipe assembly 40 is used for controlling the blowing direction of the air flow, in this embodiment, the posture of the main body part of the backpack type hair dryer is relatively fixed, so in order to flexibly adjust the blowing direction of the air flow, a section of flexible pipe 43 needs to be disposed on the blowing pipe assembly 40, the flexible pipe 43 may be a corrugated pipe, for example, the flexible pipe 43 may be disposed in the middle of the blowing pipe assembly 40, for example, the rear end of the blowing pipe assembly 40 may be a rigid structure, for example, so as to connect to the main body part, and the rear end of the blowing pipe assembly 40 may be a rigid structure, for example, so as to guide the blowing direction of the air flow. It should be noted that, when the main body part of the present invention is applied to other types of hair dryers, the flexible tube 43 is not necessary, for example, when the present invention is applied to a portable hair dryer, a user can control the direction of the air flow blowing by controlling the posture of the main body itself, and thus the flexible tube 43 is not required to be provided.

Please refer to fig. 4, the present invention sets two or more impeller cavities 101 in a spiral case 10, each impeller cavity 101 is provided with an impeller 20, and the air flow generated by each impeller 20 is gathered at the blowing port, so that the present invention greatly increases the air speed and the air volume of the hair dryer while ensuring the compact structure of the hair dryer, and meets the use requirements under complex working conditions.

Referring to fig. 2 and 3, in a further embodiment, a heat dissipation hole 104 may be disposed on an end surface of the volute 10 opposite to the air inlet 102, the driving element 30 is mounted outside the heat dissipation hole 104, and an output shaft of the driving element 30 passes through the heat dissipation hole 104 and is connected to the impeller 20. It can be understood that the heat dissipation holes 104 can communicate the space where the driving element 30 is located with the impeller cavity 101, and the impeller 20 can dissipate heat of the driving element 30 when in operation, thereby improving the service life of the driving element 30; when the utility model discloses be applied to backpack hair-dryer, reduce the operating temperature of drive element 30 through louvre 104 and can improve user's travelling comfort.

Referring to fig. 5, in a further embodiment, the impeller 20 includes a disk-shaped base 21, a main blade 22 is disposed on a disk surface of the base 21 facing the air inlet 102, and an auxiliary blade 23 is disposed on a disk surface of the base 21 facing the heat dissipation hole 104. It can be understood that the auxiliary fan blades 23 can suck the airflow around the driving element 30, so as to improve the heat dissipation effect.

Referring to fig. 2-7, in a specific embodiment, the energy supply module may include, for example, two battery packs 51, the control module may include, for example, two PCB assemblies 53, the battery packs 51 are electrically connected to the PCB assemblies 53, the PCB assemblies 53 are electrically connected to the driving element 30, specifically, each PCB assembly 53 controls one motor to operate, the two PCB assemblies 53 and the two motors form a parallel circuit, the two battery packs 51 are connected in series to serve as the same power supply, and the two battery packs 51 simultaneously supply power to the two sets of PCB assemblies 53 and the motors. It can be understood that the utility model discloses an independent every motor is controlled respectively to PCB subassembly 53, can carry out independent control to every impeller 20's rotational speed to carry out accurate allotment to wind speed and amount of wind according to actual demand.

Referring to fig. 1, 6, 7 and 9, a handle assembly 41 is disposed on the blowing tube assembly 40, a control assembly 42 for controlling the operation of the driving element 30 is disposed on the handle assembly 41, the control assembly 42 is electrically connected to the PCB assembly 53 through a cable, and in a specific embodiment, the control assembly 42 may be, for example, a push button switch, a trigger switch or a knob switch.

Referring to fig. 4 and 7, in order to ensure the integrity of the appearance of the hair dryer, for example, the present invention may further include a front cover 50 disposed at the front side of the spiral casing 10, the front cover 50 is mounted at an end of the spiral casing 10 opposite to the air inlet 102, and the driving element 30 is mounted in the front cover 50. A battery pack bin for accommodating battery packs 51 is formed on the front cover 50, the number of the battery packs 51 is 2, and the insertion direction of the battery packs 51 and the axis of the air outlet form an angle. Specifically, the battery pack bin may be disposed on two sides of the front cover 50, for example, the two battery packs 51 are symmetrically disposed about a vertical central axis of the front cover 50, the battery packs 51 are obliquely inserted into the battery pack bin from top to bottom, and an upper half portion of the battery pack 51 may be exposed outside the battery pack bin, for example, so as to facilitate detachment and installation of the battery packs 51. The bottom of the battery pack compartment may be provided with a tab receptacle 54, for example, to enable quick electrical connection of the electrical components to the battery pack 51.

Referring to fig. 2, for example, a tab mounting groove 107 and a PCB mounting groove 108 may be disposed on an end surface of the scroll casing 10 to fix the tab seat 54 and the PCB assembly 53, and when the front cover 50 is connected to the scroll casing 10, the tab seat 54 and the PCB assembly 53 are clamped between the front cover 50 and the scroll casing 10 to fix the two.

Referring to fig. 8 and 9, the wearing assembly 60 may be connected to the front cover 50, for example, in this embodiment, the wearing assembly 60 includes two shoulder straps 61 and a waist belt 62, and the wearing assembly 60 can achieve reliable fixation between the main body portion and the human trunk.

Referring to fig. 4-6, the motor is accommodated in the front cover 50, one end of the motor abuts against the scroll casing 10, and the other end of the motor abuts against the front cover 50. The edge of one end of the motor, which is abutted against the volute casing 10, is provided with at least two lugs 31 which are arranged in a protruding manner along the radial direction, the lugs 31 are arranged at intervals along the circumferential direction of the motor, and the volute casing 10 is provided with a first positioning groove 105 for accommodating the lugs 31. The lug 31 is sleeved with a buffer sleeve 32 made of elastic material. A buffer pad 33 made of an elastic material is arranged on the side wall of the motor, the buffer pad 33 is positioned between two adjacent lugs 31, and a second positioning groove 106 for accommodating the buffer pad 33 is arranged on the volute 10.

It can be understood that the utility model discloses a motor is sandwiched between protecgulum 50 and spiral case 10, and lug 31 can restrict motor circumferential position with the cooperation of first constant head tank 105, does not have rigid connection between motor and spiral case 10 and the protecgulum 50, consequently can isolate the vibration that the motor during operation produced to a certain extent, and the dismouting of the motor of being convenient for simultaneously is maintained.

To sum up, the utility model discloses set up two or more than two impeller cavities 101 in a spiral case 10, set up an impeller 20 respectively in each impeller cavity 101, the air current that each impeller 20 produced gathers in the mouth of blowing, the utility model discloses when guaranteeing that the hair-dryer compact structure, greatly promoted the wind speed and the amount of wind of hair-dryer, satisfied the user demand under the complicated operating mode; the heat dissipation holes 104 can communicate the space where the driving element 30 is located with the impeller cavity 101, and the impeller 20 can dissipate heat of the driving element 30 when in operation, so that the practical service life of the driving element 30 is prolonged; when the utility model is applied to a backpack type hair drier, the comfort of a user can be improved by reducing the working temperature of the driving element 30 through the heat dissipation holes 104; the auxiliary fan blades 23 can suck air flow around the driving element 30, and the heat dissipation effect is improved; the utility model adopts the independent PCB component 53 to respectively control each motor, and can independently control the rotating speed of each impeller 20, so as to accurately allocate the wind speed and the wind volume according to the actual demand; the utility model discloses a motor is pressed from both sides between protecgulum 50 and spiral case 10, and the cooperation of lug 31 and first constant head tank 105 can restrict motor circumference position, does not have rigid connection between motor and spiral case 10 and the protecgulum 50, consequently can be to a certain extent isolated the vibration that the motor during operation produced, the dismouting of the motor of being convenient for simultaneously is maintained.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

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 invention. One skilled in the relevant art will recognize, however, that an embodiment of the invention 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 specifically shown or described in detail to avoid obscuring aspects of embodiments of the invention.

Reference throughout this specification to "one embodiment," "an embodiment," or "particular embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention, and not necessarily in all embodiments. Thus, appearances of the phrases "in one embodiment," "in an embodiment," or "in a specific embodiment" in various places throughout this specification are not necessarily referring to the same embodiment. Furthermore, the particular features, structures, or characteristics of any specific embodiment of the present invention may be combined in any suitable manner with one or more other embodiments. It is to be understood that other variations and modifications of the embodiments of the invention described and illustrated herein are possible in light of the teachings herein and are to be considered as part of the spirit and scope of the present invention.

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.

As used in the description herein and throughout the claims that follow, "a," "an," and "the" include plural references unless otherwise indicated. Also, as used in the description herein and throughout the claims that follow, the meaning of "in …" includes "in …" and "on …" unless otherwise indicated.

The above description of illustrated embodiments of the invention, including what is described in the abstract of the specification, is not intended to be exhaustive or to limit the invention to the precise forms disclosed herein. While specific embodiments of, and examples for, the invention 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 noted, these modifications may be made to the present invention in light of the foregoing description of illustrated embodiments of the invention and are to be included within the spirit and scope of the present invention.

The system and method have been described herein in general terms as providing details to facilitate the understanding of the invention. Furthermore, various specific details have been given to provide a general understanding of the embodiments of the invention. One skilled in the relevant art will recognize, however, that an embodiment of the invention 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 invention.

Thus, although the present invention has been described herein with reference to particular embodiments thereof, freedom of modification, various changes and substitutions are also within the foregoing disclosure, and it should be understood that in some instances some features of the present invention will be employed without a corresponding use of other features without departing from the scope and spirit of the present invention as set forth. Accordingly, 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 invention 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 invention will include any and all embodiments and equivalents falling within the scope of the appended claims. Accordingly, the scope of the invention is to be determined solely by the appended claims.

Claims (15)

1. A hair dryer, comprising:

the volute comprises a volute body, wherein at least two impeller cavities are formed in the volute body, air inlets corresponding to the impeller cavities are formed in at least one end face of the volute body, air outlets are formed in the side face of the volute body, and the impeller cavities are respectively communicated with the air outlets;

the impeller is provided with at least two impellers, and each impeller is arranged in each impeller cavity;

the driving element is in transmission connection with the impellers so as to drive each impeller to rotate;

a blow tube assembly connected to the air outlet.

2. The blower of claim 1, wherein a heat dissipation hole is formed in an end face of the volute opposite to the air inlet, the driving element is mounted outside the heat dissipation hole, and an output shaft of the driving element penetrates through the heat dissipation hole and is connected with the impeller.

3. The blower of claim 2, wherein the impeller comprises a disk-shaped base body, a main blade is arranged on a disk surface of the base body facing the air inlet, and an auxiliary blade is arranged on a disk surface of the base body facing the heat dissipation hole.

4. The hair dryer of claim 1, further comprising a battery pack and a PCB assembly, said battery pack being electrically connected to said PCB assembly, said PCB assembly being electrically connected to said drive element.

5. The hair dryer of claim 4, wherein a handle assembly is arranged on the blowing tube assembly, a control assembly for controlling the action of the driving element is arranged on the handle assembly, and the control assembly is electrically connected with the PCB assembly through a cable.

6. The blower of claim 1, wherein the blower tube assembly comprises at least one length of flexible tubing.

7. The blower of claim 1, further comprising a front cover mounted to the volute opposite the inlet, the drive element being mounted in the front cover.

8. The hair dryer of claim 7, wherein said front cover has a battery pack compartment formed thereon for receiving a battery pack.

9. The hair dryer of claim 8, wherein the number of said battery packs is 2, and the insertion direction of said battery packs is disposed at an angle to the axis of said air outlet.

10. The hair dryer of claim 7, wherein a wearing assembly is attached to said front cover, said wearing assembly comprising at least a shoulder strap and/or a waist strap.

11. The hair dryer of claim 7, wherein said drive element comprises at least two motors, each of said motors independently driving a respective one of said impellers.

12. The blower of claim 11, wherein the motor is housed within the front cover, one end of the motor abutting the volute and the other end of the motor abutting the front cover.

13. The hair dryer of claim 12, wherein the edge of the end of the motor abutting the volute is provided with at least two radially protruding lugs, and the lugs are arranged at intervals along the circumferential direction of the motor, and the volute is provided with a first positioning groove for accommodating the lugs.

14. The hair dryer of claim 13, wherein said lug is provided with a cushion sleeve of resilient material.

15. The hair dryer of claim 13, wherein a cushion of resilient material is provided on a side wall of said motor, said cushion being located between two adjacent lugs, and said volute has a second positioning slot for receiving said cushion.

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