CN217885334U

CN217885334U - Motor and hair-dryer

Info

Publication number: CN217885334U
Application number: CN202221090211.5U
Authority: CN
Inventors: 俞浩
Original assignee: Dreame Innovation Technology Suzhou Co Ltd
Current assignee: Dreame Innovation Technology Suzhou Co Ltd
Priority date: 2022-05-09
Filing date: 2022-05-09
Publication date: 2022-11-25
Anticipated expiration: 2032-05-09

Abstract

The utility model discloses a motor and hair drier, the motor includes casing and stator, the casing includes first shell, second shell and connects first shell and a plurality of first blades of second shell, form the air current passageway between first shell and the second shell, the stator includes main part and a plurality of second blades connected with the main part; the main body part is nested in the outer ring of the second shell part, and the guide vane is fixed on the shell; one end of the second blade, which is far away from the main body part, is fixedly connected with the inner wall of the first shell part. Through optimizing the mode of stator, make the blade of stator and motor casing relatively fixed, improve resonance frequency, avoid the resonance area to effectively reduce the noise, prolong the motor life-span, have wide application prospect.

Description

Motor and hair-dryer

Technical Field

The utility model relates to a motor and hair-dryer belongs to the hair-dryer field.

Background

The stator and the shell of traditional high-speed small-size class motor of blowing separately design, the stator is independent assembly part, and the stator can produce solitary mode to lead to motor big noise and short-lived.

Therefore, there is a need for a new motor and hair dryer to solve the above problems.

SUMMERY OF THE UTILITY MODEL

In view of the shortcoming of the prior art above, the utility model aims to provide an optimize motor and hair-dryer of stator design can effectively reduce motor noise.

In order to achieve the above purpose, the utility model adopts the following technical scheme: an electric machine comprising: the guide vane comprises a main body part and a plurality of second blades connected with the main body part;

the main body part is sleeved on the second shell part; one end, far away from the main body part, of the second blade is fixedly connected with the inner wall of the first shell part.

As a further improvement of the present invention, the first blade is formed in a flat plate shape, and/or the second blade is formed in a curved shape.

As a further improvement of the present invention, the first shell portion is disposed in the outer side of the second shell portion, the second shell portion includes the first shell portion, from the section of bending formed by bending the one end of the first shell portion inwards and with the section of bending is relative the second shell portion connected to the other end of the first shell portion.

As a further improvement of the present invention, the main body portion is sleeved on the first housing section, and the main body portion has one end thereof located on the same horizontal plane or on the same horizontal plane.

As a further improvement of the present invention, the second casing section is provided with an impeller, a plurality of third blades are formed on the periphery of the impeller, the third blades are along the projection of the axis direction of the second casing section, each projection of the third blades is at least partially located between the first blades.

As a further improvement of the present invention, the first casing section is formed with one or more first connecting portions, and the main body portion is formed with a second connecting portion that is matched with the first connecting portion.

As a further improvement of the present invention, the first connecting portion is formed as a groove portion, and the second connecting portion is formed as a protrusion portion;

or the first connecting part is formed into a convex part, and the second connecting part is formed into a groove part.

As a further improvement of the present invention, the first blade separates the airflow channel to form a plurality of sub-channels, and each of the second blades is at least partially located in the sub-channels.

As a further improvement of the present invention, one end of the second blade remote from the main body portion is welded or bonded to an inner wall of the first shell portion by an adhesive.

In order to achieve the above object, the utility model discloses still adopt following technical scheme: a hair dryer comprising a motor as claimed in any preceding claim.

Compared with the prior art, the utility model discloses a motor and hair-dryer's beneficial effect lies in: through optimizing the mode of stator, with the middle nestification of stator on the motor casing inner frame, the stator outer fringe is connected with the motor casing, makes stator and casing form a whole, and the blade of stator and motor casing relatively fixed have improved resonant frequency, avoid the resonance area, can effectively reduce the noise, prolong the motor life-span, have wide application prospect.

Drawings

Fig. 1 is a schematic perspective view of an assembled casing and guide vane according to an embodiment of the present invention;

fig. 2 is a schematic perspective view of a housing according to an embodiment of the present invention;

fig. 3 is a schematic perspective view of a guide vane according to an embodiment of the present invention;

FIG. 4 is a schematic cross-sectional view of FIG. 2;

fig. 5 is a schematic sectional perspective view of the housing, vane, and impeller of an embodiment of the present invention after assembly;

fig. 6 is a schematic perspective view of a motor according to an embodiment of the present invention;

fig. 7 is a schematic cross-sectional structure of fig. 6.

Detailed Description

Exemplary embodiments of the present invention will be described in detail below with reference to the accompanying drawings. If several embodiments exist, the features of these embodiments may be combined with each other without conflict. When the description refers to the accompanying drawings, the same numbers in different drawings represent the same or similar elements, unless otherwise specified. The description set forth below in the exemplary detailed description does not represent all implementations consistent with the present disclosure; rather, they are merely examples of apparatus, products and/or methods consistent with certain aspects of the invention, as set forth in the claims.

The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. As used in the specification and claims of this application, the singular form of "a", "an", or "the" is intended to include the plural form as well, unless the context clearly indicates otherwise.

It should be understood that the terms "first," "second," and the like, as used in the description and in the claims of the present invention, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. Unless otherwise indicated, the terms "front," "back," "up," "down," and the like in the description of the invention are used for convenience of description and are not limited to a particular position or spatial orientation. The word "comprise" or "comprises", and the like, is an open-ended expression meaning that an element that precedes "includes" or "comprising" includes "that the element that follows" includes "or" comprises "and its equivalents, that do not preclude the element that precedes" includes "or" comprising "from also including other elements. If the utility model discloses in appear "a plurality of", its meaning indicates two and more than two.

Referring to fig. 1 to 7, the present invention discloses a motor, which is suitable for being installed in a blower, and includes a housing 10 and a guide vane 20. The casing 10 includes a first casing 11, a second casing 12, and a plurality of first blades 13 connecting and fixing the first casing 11 and the second casing 12; the vane 20 includes a main body 21 and a plurality of second blades 22 fixedly connected to the main body 21, and the first, second, and

main body

11, 12, 21 are coaxially disposed.

Referring to fig. 1 to 3, the first vane 13 is formed into a flat plate shape, the second vane 22 is formed into a curved shape, one end of the second vane 22 away from the main body 21 is fixedly connected to the inner wall of the first shell 11, the first vane 13 divides the airflow channel into a plurality of sub-channels, and at least a portion of each second vane 22 is located in the sub-channels.

Referring to fig. 1 to 4, an airflow passage is formed between the first housing portion 11 and the second housing portion 12, and a hollow cavity is formed between the second housing portion 12 for ventilation and is used for disposing a rotor assembly of the motor. The inner diameter of the main body portion 21 is equal to or slightly larger than the outer diameter of the second shell portion 12, and the main body portion 21 is nested on the second shell portion 12, so that the guide vane 20 is fixed on the casing 10, and the guide vane 20 and the casing 10 form a whole. The first shell portion 11 is disposed at an outer side of the second shell portion 12, and the second shell portion 12 includes a first shell portion 121, a bending portion 122 formed by bending one end of the first shell portion 121 inward, and a second shell portion 123 connected to another end of the bending portion 122 opposite to the first shell portion 121. The first blade 13 is formed on the first casing section 121, the main body portion 21 is sleeved on the first casing section 121, so that the airflow channel of the casing 10 extends to the guide vane 20, and one end of the main body portion 21 and the bent section 122 are located on the same horizontal plane or substantially located on the same horizontal plane.

Referring to fig. 5, the second housing section 123 is provided with an impeller 30, a plurality of third blades 31 are formed on the peripheral side of the impeller 30, the third blades 31 are projected along the axial direction of the second housing portion 12, and the projection of each third blade 31 is at least partially located between two adjacent first blades 13.

Referring to fig. 2 and 3, one or more first connection portions 1211 are formed on the first casing section 121, a second connection portion 211 matched with the first connection portion 1211 is formed on the main body portion 21, the main body portion 21 is nested on the outer ring of the first casing section 121, and the main body portion 21 is rotated to a corresponding position to enable the second connection portion 211 to be engaged with the first connection portion 1211, so that the guide vane 20 and the casing 10 are relatively fixed, and further, an adhesive can be used for bonding, thereby ensuring the reliability of the fixing. Wherein, the first connection portion 1211 is formed as a groove portion, and the second connection portion 211 is formed as a protrusion portion; or the first connection portion 1211 is formed as a protrusion portion and the second connection portion 211 is formed as a groove portion; of course, the first connection portion 1211 and the second connection portion 211 may be formed in other forms so that they are relatively fixed.

It should be noted that, one end of the second blade 22 on the guide vane 20, which is far away from the main body 21, is fixedly connected with the inner wall of the first shell 11, after the guide vane 20 is integrally mounted on the casing 10 and positioned, the second blade 22 is fixedly connected with the first shell 11 by welding or bonding with an adhesive, so that the second blade 22 and the casing 10 are relatively fixed, the resonance frequency of the motor in the operation process is improved, and meanwhile, the resonance band is avoided, and the noise is effectively reduced.

In addition to the above embodiment, the first blades 13 of the housing 10 in the present embodiment are formed in a vertical shape, have the same shape and size, and are uniformly disposed in the airflow passage between the first and

second shell portions

11 and 12, and both sides of the first blades 13 are fixedly connected to the inner race of the first shell portion 11 and the outer race of the inner ring main body 121, respectively. The second vane 22 of the guide vane 20 is formed in a curved shape having the same shape and size, and is uniformly disposed on the main body 21, and both sides of the second vane 22 are fixedly connected to an outer ring of the main body 21 and an inner ring of the first shell 11, respectively. The surfaces of the first blade 13 and the second blade 22 are smooth, so that smooth and efficient gas flow is ensured.

In another embodiment, as shown in fig. 3, the first casing 11 of the casing 10 is further provided with an inwardly recessed fixing hole 111 for assisting the positioning and fixing of the whole motor, and a corresponding position in the hair dryer having the motor is provided with a protrusion adapted to the fixing hole 111. Alternatively, a protrusion protruding outwards may be provided on the first casing part 11, and a recess adapted to the protrusion may be provided at a corresponding position in the blower, so as to realize quick positioning of the motor in the blower.

The utility model discloses a motor does not restrict the quantity of first blade 13 and second blade 22, and the technical staff can set up the quantity of first blade 13 and second blade 22 according to actual conditions. In the present embodiment, 9 first vanes 13 and 6 second vanes 22 are provided, and the number of vanes is set to provide a high efficiency of the flow of gas in the gas flow passage.

Referring to fig. 6 and 7, the motor of the present invention includes the housing 10, the guide vane 20, the impeller 30, and other components such as a rotor, a stator, and a bearing, which are disposed in the hollow cavity formed by the second housing 12 to avoid being placed in the airflow channel formed between the first housing 11 and the second housing 12, so as to facilitate smooth air flow.

The utility model discloses the structure of well motor includes two solitary assembly parts, casing 10 and stator 20 promptly, will originally the casing that the blade structure is complicated to be difficult to the preparation is torn open into two workable parts, make the blade form simplify, set up first blade 13 promptly on casing 10 and set up second blade 22 on stator 20, and like this, through the digit control machine tool, modes such as mould can be processed out two parts simply, the effective control cost of manufacture, and make the difficult gas separation or the torrent that forms of air current after the combination, the efficiency of motor has been improved.

The utility model provides a fan can be used to small-size class domestic appliance of blowing such as hair-dryer, little fan for flow out from domestic appliance through reasonable velocity of flow and flow direction with gas.

To sum up, compare in prior art, the utility model discloses a motor and hair-dryer have following advantage: through optimizing the mode of stator 20, with the middle nestification of stator 20 on the motor casing inner frame, stator 20 outer fringe is connected with the motor casing, makes stator 20 and casing 10 form a whole, and the blade of stator 20 is fixed relatively with the motor casing, has improved resonant frequency, avoids the resonance band, can effectively reduce the noise, prolongs the motor life-span, has wide application prospect.

The above embodiments are only used to illustrate the present invention, but not to limit the technical solutions of the present invention, and the understanding of the present specification should be based on the technical personnel in the technical field, and although the present specification has made the detailed description of the present invention with reference to the above embodiments, the ordinary skilled in the art should understand that the technical personnel in the technical field can still make modifications or equivalent substitutions to the present invention, and all technical solutions and modifications thereof that do not depart from the spirit and scope of the present invention should be covered in the scope of the claims of the present invention.

Claims

1. An electric machine comprising a housing (10) and a guide vane (20), said housing (10) comprising a first shell portion (11), a second shell portion (12) and a number of first blades (13) connecting said first shell portion (11) with said second shell portion (12), said first shell portion (11) and said second shell portion (12) having an air flow channel formed therebetween, said guide vane (20) comprising a main body portion (21) and a number of second blades (22) connected with said main body portion (21), characterized in that:

the main body part (21) is sleeved on the second shell part (12); one end of the second blade (22) far away from the main body part (21) is fixedly connected with the inner wall of the first shell part (11).

2. The electric machine of claim 1, wherein: the first blade (13) is formed in a flat plate shape, and/or the second blade (22) is formed in a curved shape.

3. The electric machine of claim 1 or 2, wherein: the first shell portion (11) is arranged on the outer side of the second shell portion (12), and the second shell portion (12) comprises a first shell section (121), a bending section (122) formed by inwards bending one end of the first shell section (121), and a second shell section (123) connected with the other end, opposite to the first shell section (121), of the bending section (122).

4. The electric machine of claim 3, wherein: the main body part (21) is sleeved on the first shell section (121), and one end of the main body part (21) and the bending section (122) are located on the same horizontal plane or are located on the same horizontal plane basically.

5. The electric machine of claim 3, wherein: an impeller (30) is arranged on the second shell section (123), a plurality of third blades (31) are formed on the peripheral side of the impeller (30), the third blades (31) project along the axial direction of the second shell part (12), and the projection of each third blade (31) is at least partially positioned between two adjacent first blades (13).

6. The electric machine of claim 3, wherein: one or more first connecting parts (1211) are formed on the first shell section (121), and a second connecting part (211) matched with the first connecting part (1211) is formed on the main body part (21).

7. The electric machine of claim 6, wherein: the first connection portion (1211) is formed as a groove portion, and the second connection portion (211) is formed as a protrusion portion;

or the first connection portion 1211 is formed as a protrusion portion and the second connection portion 211 is formed as a groove portion.

8. A machine as claimed in claim 1 or 2, characterized in that: the first blades (13) divide the airflow channel into a plurality of sub-channels, and at least part of each second blade (22) is positioned in the sub-channels.

9. A machine as claimed in claim 1 or 2, characterized in that: one end of the second blade (22) far away from the main body part (21) is welded with the inner wall of the first shell part (11) or bonded by an adhesive.

10. A hair dryer, its characterized in that: comprising an electric machine as claimed in any of claims 1 to 9.