CN109171160B - Hair dryer convenient to heat dissipation - Google Patents
Hair dryer convenient to heat dissipation Download PDFInfo
- Publication number
- CN109171160B CN109171160B CN201811160261.4A CN201811160261A CN109171160B CN 109171160 B CN109171160 B CN 109171160B CN 201811160261 A CN201811160261 A CN 201811160261A CN 109171160 B CN109171160 B CN 109171160B
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- China
- Prior art keywords
- blower
- sleeve
- air
- cylindrical body
- heat dissipation
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Classifications
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- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
- A45D20/00—Hair drying devices; Accessories therefor
- A45D20/04—Hot-air producers
- A45D20/08—Hot-air producers heated electrically
- A45D20/10—Hand-held drying devices, e.g. air douches
- A45D20/12—Details thereof or accessories therefor, e.g. nozzles, stands
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- Structures Of Non-Positive Displacement Pumps (AREA)
- Cleaning And Drying Hair (AREA)
Abstract
The invention discloses a blower convenient for heat dissipation, comprising: the left end and the right end of the cylindrical body are opened to form an air inlet and an air outlet; a handle connected to the cylindrical body; and the cover body is connected to the air inlet of the cylindrical body, an air duct extending along the axial direction of the air duct is formed in the cylindrical body, an air blast component is arranged in the air duct, the air blast component comprises a mounting sleeve and an air blower arranged in the mounting sleeve, and the outer side wall of the mounting sleeve is separated from the inner side wall of the cylindrical body by a certain distance to form a backflow channel between the mounting sleeve and the inner side wall of the cylindrical body. According to the invention, the annular PCB which can be sleeved on the blower is arranged in the blower, so that the problem of overlarge volume of the brushless blower is solved, the air duct in the brushless blower is reasonably optimized, the problem of overlarge noise caused by the reduced volume is solved, and meanwhile, the problem of poor heat dissipation after the reduced volume of the blower is solved by carrying out air return type heat dissipation on the PCB.
Description
Technical Field
The invention relates to the field of blowers, in particular to a blower convenient for heat dissipation.
Background
The hair dryer can be classified into a brush type hair dryer and a brushless type hair dryer according to whether a driving motor used for the hair dryer is a brush motor or a brushless motor. The brushless motor is composed of a motor main body and a driver, is a typical electromechanical integrated product, and because the brushless motor runs in an automatic control mode, a starting winding is not additionally arranged on a rotor like a synchronous motor started under heavy load under variable frequency speed regulation, oscillation and step-out are not generated when load suddenly changes, but the brushless direct current motor also has obvious defects, and because the brushless motor needs to be matched with a PCB (printed Circuit Board) with larger volume, the whole volume of the brushless blower is larger, the brushless blower is inconvenient to carry no matter daily use or travel, and therefore, the problem to be solved in the industry is urgent need to be solved because the motor and the PCB are reasonably distributed to reduce the volume of the blower.
In view of the foregoing, there is a need for a blower that facilitates heat dissipation.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention aims to provide the blower convenient for heat dissipation, which solves the problem of overlarge volume of a brushless blower by arranging the annular PCB which can be sleeved on the blower in the blower, reasonably optimizes an air duct in the blower, solves the problem of overlarge noise caused by the reduced volume, and simultaneously solves the problem of poor heat dissipation after the volume of the blower is reduced by carrying out return air type heat dissipation on the PCB.
To achieve the above objects and other advantages and in accordance with the purpose of the invention, there is provided a blower for facilitating heat dissipation, comprising:
the left end and the right end of the cylindrical body are opened to form an air inlet and an air outlet;
a handle connected to the cylindrical body; and
a cover body connected to the air inlet of the cylindrical body,
the inside of the cylindrical body is provided with an air duct extending along the axial direction of the cylindrical body, an air blast assembly is arranged in the air duct and comprises a mounting sleeve and an air blower arranged in the mounting sleeve, and the outer side wall of the mounting sleeve and the inner side wall of the cylindrical body are separated by a certain distance to form a backflow channel between the mounting sleeve and the inner side wall of the cylindrical body.
Preferably, the installation sleeve comprises a left flow guiding sleeve and a right flow guiding sleeve, a left flow guiding port is integrally formed at the left end of the left flow guiding sleeve, the caliber of the left flow guiding port gradually expands in the direction opposite to the airflow flowing direction until the edge of the left flow guiding port abuts against the inner side wall of the cylindrical body to form a seal, a right flow guiding port is integrally formed at the right end of the right flow guiding sleeve, the caliber of the right flow guiding port gradually expands in the airflow flowing direction until the edge of the right flow guiding port abuts against the inner side wall of the cylindrical body to form a seal, and therefore the left end and the right end of the backflow channel are sealed to form backflow spaces between the left flow guiding port and the right flow guiding port, and left backflow through holes and right backflow through holes are respectively formed on the side walls of the left flow guiding port and the right flow guiding port.
Preferably, at least two left return through holes are circumferentially arranged on the left diversion port.
Preferably, at least two right return through holes are circumferentially arranged on the right diversion port.
Preferably, the cover body is provided with at least two air inlets leading to the air duct, the air duct is sequentially provided with a blast chamber and a heating chamber along the airflow flowing direction, the mounting sleeve is arranged in the blast chamber, and the mounting sleeve is sleeved with the PCB assembly.
Preferably, the left flow guiding sleeve is detachably connected with the right flow guiding sleeve, and the cover body is butted with the left flow guiding port, so that the backflow space is respectively communicated with the cover body and the heating chamber through the left backflow through hole and the right backflow through hole.
Preferably, the PCB assembly comprises an annular PCB sleeved on the mounting sleeve and an electronic component arranged on the end face of the annular PCB.
Preferably, the blower includes:
the blast sleeve is sleeved in the mounting sleeve; and
a blower motor and a blower fan arranged in the blower sleeve,
wherein, be equipped with a plurality of elastic support column between blast sleeve and installation sleeve on blast sleeve's the lateral wall.
Preferably, a heating assembly is provided in the heating chamber, the heating assembly comprising: a heating coil; and an insulating sleeve disposed between the heating coil and an inner sidewall of the heating chamber.
Preferably, the air outlet on the cylindrical body is gradually contracted in the airflow direction.
Preferably, the air outlet of the cylindrical body is provided with a nozzle, and the nozzle comprises:
a cylindrical nozzle body provided between the insulating sleeve and an inner side wall of the heating chamber, the nozzle body being open at both right and left ends;
the guide plate is connected with the right end of the nozzle body to close the opening at the right end of the nozzle body,
at least two air injection holes are formed at the joint of the guide plate and the nozzle body, and the guide plate is recessed inwards along the axis of the nozzle body at the center of the guide plate, so that the section of an air path leading to the air injection holes is gradually contracted.
Compared with the prior art, the invention has the beneficial effects that: the annular PCB which can be sleeved on the blower is arranged in the blower, so that the problem of overlarge volume of the brushless blower is solved, the air duct inside the brushless blower is reasonably optimized, the problem of overlarge noise caused by the reduced volume is solved, meanwhile, the problem of poor heat dissipation after the reduced volume of the blower is solved by carrying out air return type heat dissipation on the PCB, and the brushless blower has a wide market application prospect.
Drawings
Fig. 1 is a view showing a three-dimensional structure of a blower for facilitating heat dissipation according to the present invention;
fig. 2 is a longitudinal sectional view of a combination of a handle, a body and a cover of the blower for facilitating heat dissipation according to the present invention;
fig. 3 is a longitudinal sectional view of a blower for facilitating heat dissipation according to the present invention;
fig. 4 is an exploded view of a blower for facilitating heat dissipation according to the present invention.
Detailed Description
The foregoing and other objects, features, aspects and advantages of the present invention will become more apparent to those skilled in the art from the following detailed description, which, taken in conjunction with the annexed drawings, discloses a device for practicing the invention. In the drawings, the shape and size may be exaggerated for clarity, and the same reference numerals will be used throughout the drawings to designate the same or similar components. In the following description, terms such as center, thickness, height, length, front, back, rear, left, right, top, bottom, upper, lower, etc. are based on the orientation or positional relationship shown in the drawings. In particular, "height" corresponds to the top-to-bottom dimension, "width" corresponds to the left-to-right dimension, and "depth" corresponds to the front-to-back dimension. These relative terms are for convenience of description and are not generally intended to require a particular orientation. Terms (e.g., "connected" and "attached") referring to an attachment, coupling, etc., refer to a relationship wherein these structures are directly or indirectly secured or attached to one another through intervening structures, as well as both movable or rigid attachments or relationships, unless expressly described otherwise.
Referring to fig. 1 to 4, a blower 1 for facilitating heat dissipation includes:
a cylindrical body 12, wherein the left and right ends of the cylindrical body 12 are open to form an air inlet and an air outlet;
a handle 11, the handle 11 being connected to the tubular body 12; and
a cover 13, the cover 13 being connected to the air inlet of the cylindrical body 12,
the inside of the cylindrical body 12 is formed with an air duct 121 extending along the axial direction thereof, and an air blast assembly is arranged in the air duct 121, and comprises a mounting sleeve 14 and an air blower 16 arranged in the mounting sleeve 14, wherein the outer side wall of the mounting sleeve 14 is spaced from the inner side wall of the cylindrical body 12 by a certain distance to form a backflow channel therebetween.
Referring to fig. 4, the installation sleeve 14 includes a left flow sleeve 141 and a right flow sleeve 142, a left flow port 1411 is integrally formed at a left end of the left flow sleeve 141, a caliber of the left flow port 1411 is gradually enlarged in a direction opposite to a flow direction of the air flow until an edge thereof abuts against an inner side wall of the cylindrical body 12 to form a seal, a right flow port 1421 is integrally formed at a right end of the right flow sleeve 142, a caliber of the right flow port 1421 is gradually enlarged in the flow direction of the air flow until an edge thereof abuts against an inner side wall of the cylindrical body 12 to form a seal, and left and right ends of the return passage are closed to form a return space between the left flow port 1411 and the right flow port 1421, and left and right return through holes 1412 and 1422 are formed on side walls of the left and right flow ports 1411, respectively.
Referring to fig. 4, at least two left backflow through holes 1412 are circumferentially arranged on the left diversion port 1411.
Further, at least two right return through holes 1422 are circumferentially arranged on the right flow guiding port 1421.
Referring to fig. 1 to 3, at least two air inlet holes 131 leading to the air duct 121 are formed in the cover 13, a blower chamber 1211 and a heating chamber 1212 are sequentially arranged on the air duct 121 along the airflow flowing direction, the mounting sleeve 14 is arranged in the blower chamber 1211, and the PCB assembly 15 is sleeved on the mounting sleeve 14.
Further, the left flow sleeve 141 is detachably connected to the right flow sleeve 142, and the cover 13 is abutted against the left flow port 1411, so that the backflow space is respectively communicated with the cover 13 and the heating chamber 1212 through the left backflow through hole 1412 and the right backflow through hole 1422.
Further, the PCB assembly 15 includes an annular PCB 151 sleeved on the mounting sleeve 14 and electronic components disposed on an end surface of the annular PCB 151.
Referring to fig. 4, the blower 16 includes:
a blower sleeve 161 fitted in the mounting sleeve 14; and
a blower motor and blower fan 162 disposed within the blower sleeve 161,
wherein the outer side wall of the blowing sleeve 161 is provided with a plurality of elastomeric support columns 1611 interposed between the blowing sleeve 161 and the mounting sleeve 14.
Further, a heating assembly 17 is provided in the heating chamber 1212, the heating assembly 17 including:
a heating coil 171; and
an insulating sleeve 172 provided between the heating coil 171 and the inner side wall of the heating chamber 1212.
Referring to fig. 3 and 4, the air outlet on the cylindrical body 12 is gradually contracted in the airflow direction.
Further, a nozzle 18 is disposed in the air outlet of the cylindrical body 12, and the nozzle 18 includes:
a cylindrical nozzle body 182 provided between the insulating sleeve 172 and an inner side wall of the heating chamber 1212, the nozzle body 182 having left and right ends open;
a deflector 181, the deflector 181 being connected to the right end of the nozzle body 181 to close the right end opening of the nozzle body 181,
wherein, at least two air injection holes 183 are formed at the connection part of the guide plate 181 and the nozzle body 181, and the guide plate 181 is recessed inwards along the axis of the nozzle body 181 at the center thereof, so that the air passage section leading to the air injection holes 183 is gradually contracted.
Working principle:
referring to fig. 3, the blower fan 162 in the blower 16 rotates at a high speed, so that a negative pressure is generated in the air duct 121, thereby causing an external air flow to enter the body 12 from the air inlet 131 on the cover 13 along the direction of arrow a, and after being guided by the left air guide port 1411 and the right air guide port 1421, the air enters the heating chamber 1212, after being heated for a period of time, the heated air is ejected out of the air jet holes 183 along arrow D at a high speed, so as to form a high-temperature fast air flow, so that moisture on the hair surface can be quickly evaporated, thereby achieving the purpose of drying and styling.
The number of equipment and the scale of processing described herein are intended to simplify the description of the present invention. Applications, modifications and variations of the present invention will be readily apparent to those skilled in the art.
Although embodiments of the present invention have been disclosed above, it is not limited to the details and embodiments shown and described, it is well suited to various fields of use for which the invention would be readily apparent to those skilled in the art, and accordingly, the invention is not limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.
Claims (9)
1. A blower (1) for facilitating heat dissipation, characterized by comprising:
a cylindrical body (12), wherein the left and right ends of the cylindrical body (12) are open to form an air inlet and an air outlet;
a handle (11), the handle (11) being connected to the tubular body (12); and
a cover body (13), the cover body (13) is connected to the air inlet of the cylindrical body (12),
the air-blowing device comprises a cylindrical body (12), an air channel (121) extending along the axial direction of the cylindrical body is formed in the cylindrical body, an air-blowing component is arranged in the air channel (121), the air-blowing component comprises a mounting sleeve (14) and a blower (16) arranged in the mounting sleeve (14), and the outer side wall of the mounting sleeve (14) is separated from the inner side wall of the cylindrical body (12) by a certain distance to form a backflow channel between the mounting sleeve and the inner side wall of the cylindrical body;
the mounting sleeve (14) comprises a left flow guide sleeve (141) and a right flow guide sleeve (142), a left flow guide port (1411) is formed at the left end of the left flow guide sleeve (141), a right flow guide port (1421) is formed at the right end of the right flow guide sleeve (142), and left backflow through holes (1412) and right backflow through holes (1422) are respectively formed on the side walls of the left flow guide port (1411) and the right flow guide port (1421);
the air duct (121) is sequentially provided with a blast chamber (1211) and a heating chamber (1212) along the airflow flowing direction, the installation sleeve (14) is arranged in the blast chamber (1211), the installation sleeve (14) is sleeved with the PCB assembly (15), and the PCB assembly (15) comprises an annular PCB (151) sleeved on the installation sleeve (14) and electronic components arranged on the end face of the annular PCB (151).
2. The blower (1) for facilitating heat dissipation according to claim 1, wherein a left diversion port (1411) is integrally formed at a left end of the left diversion sleeve (141), a caliber of the left diversion port (1411) is gradually enlarged in a direction opposite to a flow direction of the air current until an edge thereof abuts against an inner side wall of the cylindrical body (12) to form a seal, a right diversion port (1421) is integrally formed at a right end of the right diversion sleeve (142), and a caliber of the right diversion port (1421) is gradually enlarged in the flow direction of the air current until an edge thereof abuts against an inner side wall of the cylindrical body (12) to form a seal, thereby closing both left and right ends of the backflow passage to form a backflow space between the left diversion port (1411) and the right diversion port (1421).
3. The blower (1) for facilitating heat dissipation according to claim 2, wherein at least two left backflow through holes (1412) are circumferentially arranged on the left diversion port (1411).
4. The blower (1) for facilitating heat dissipation according to claim 2, wherein at least two right return through holes (1422) are circumferentially arranged on the right flow guiding port (1421).
5. The blower (1) for facilitating heat dissipation according to claim 2, wherein the left flow sleeve (141) is detachably connected to the right flow sleeve (142), and the cover (13) is abutted against the left flow port (1411), so that the return space is respectively communicated with the cover (13) and the heating chamber (1212) through the left return through hole (1412) and the right return through hole (1422).
6. A blower (1) for facilitating heat dissipation according to claim 1, wherein the blower (16) comprises:
a blower sleeve (161) sleeved in the mounting sleeve (14); and
a blower motor and a blower fan (162) provided in the blower sleeve (161),
wherein, a plurality of elastic support columns (1611) between the blast sleeve (161) and the mounting sleeve (14) are arranged on the outer side wall of the blast sleeve (161).
7. Blower (1) for facilitating heat dissipation according to claim 1, characterized in that a heating assembly (17) is provided in the heating chamber (1212), the heating assembly (17) comprising: a heating coil (171); and an insulating sleeve (172) provided between the heating coil (171) and the inner side wall of the heating chamber (1212).
8. A hair dryer (1) for facilitating heat dissipation according to claim 7, wherein said air outlet on the tubular body (12) is gradually contracted in the direction of air flow.
9. A hair dryer (1) for facilitating heat dissipation according to claim 8, characterized in that said air outlet of the tubular body (12) is provided with a nozzle (18), the nozzle (18) comprising:
a tubular nozzle body (182) provided between the insulating sleeve (172) and the inner side wall of the heating chamber (1212), the nozzle body (182) being open at both right and left ends;
a deflector (181), the deflector (181) is connected to the right end of the nozzle body (182) to close the right end opening of the nozzle body (182),
at least two air injection holes (183) are formed at the joint of the guide plate (181) and the nozzle body (182), and the guide plate (181) is recessed inwards along the axis of the nozzle body (182) at the center of the guide plate, so that the section of an air path leading to the air injection holes (183) is gradually contracted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811160261.4A CN109171160B (en) | 2018-09-30 | 2018-09-30 | Hair dryer convenient to heat dissipation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811160261.4A CN109171160B (en) | 2018-09-30 | 2018-09-30 | Hair dryer convenient to heat dissipation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109171160A CN109171160A (en) | 2019-01-11 |
| CN109171160B true CN109171160B (en) | 2023-08-22 |
Family
ID=64946505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811160261.4A Active CN109171160B (en) | 2018-09-30 | 2018-09-30 | Hair dryer convenient to heat dissipation |
Country Status (1)
| Country | Link |
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| CN (1) | CN109171160B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109764002A (en) * | 2019-03-15 | 2019-05-17 | 莱克电气股份有限公司 | Height heat dissipation hair dryer |
| CN109743859B (en) * | 2019-03-15 | 2024-04-16 | 莱克电气股份有限公司 | Blower with high heat dissipation efficiency |
| CN109700159B (en) * | 2019-03-15 | 2024-05-24 | 莱克电气股份有限公司 | Hair drier |
| CN110638181B (en) * | 2019-09-16 | 2022-03-25 | 深圳市物种起源科技有限公司 | Hair drier with back-blowing and ash-removing functions |
| CN113491379B (en) * | 2020-03-20 | 2022-09-20 | 添可智能科技有限公司 | Hair drier |
| CN213128431U (en) * | 2020-07-20 | 2021-05-07 | 东莞市东井电器有限公司 | Inner barrel device for reducing inner space |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012130442A (en) * | 2010-12-20 | 2012-07-12 | Panasonic Corp | Heating and blowing apparatus |
| CN203168302U (en) * | 2012-03-30 | 2013-09-04 | 戴森技术有限公司 | Hair dryer and handheld appliance |
| CN105407756A (en) * | 2013-07-05 | 2016-03-16 | 戴森技术有限公司 | A handheld appliance |
| CN206723097U (en) * | 2017-05-11 | 2017-12-08 | 浙江帝仕电子科技有限公司 | A kind of brushless fan of hand dryer |
-
2018
- 2018-09-30 CN CN201811160261.4A patent/CN109171160B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012130442A (en) * | 2010-12-20 | 2012-07-12 | Panasonic Corp | Heating and blowing apparatus |
| CN203168302U (en) * | 2012-03-30 | 2013-09-04 | 戴森技术有限公司 | Hair dryer and handheld appliance |
| CN105407756A (en) * | 2013-07-05 | 2016-03-16 | 戴森技术有限公司 | A handheld appliance |
| CN206723097U (en) * | 2017-05-11 | 2017-12-08 | 浙江帝仕电子科技有限公司 | A kind of brushless fan of hand dryer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109171160A (en) | 2019-01-11 |
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