CN218587042U - Safety protection structure of direct current brushless motor - Google Patents
Safety protection structure of direct current brushless motor Download PDFInfo
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- CN218587042U CN218587042U CN202222736541.3U CN202222736541U CN218587042U CN 218587042 U CN218587042 U CN 218587042U CN 202222736541 U CN202222736541 U CN 202222736541U CN 218587042 U CN218587042 U CN 218587042U
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Abstract
The utility model discloses a DC brushless motor safety protection structure, including motor stator support, DC brushless motor stator and PCB stator winding wiring board, DC brushless motor stator is installed in PCB stator winding wiring board, and DC brushless motor stator installs in motor stator support inner chamber, and DC brushless motor stator leaves the space with PCB stator winding wiring board junction, and space department installs protective assembly, the utility model discloses structural design is novel, under the unchangeable circumstances of current structure, increases protective assembly, seals DC brushless motor stator and PCB stator winding wiring board junction space, has not only prevented the vortex that the high-speed wind formed here, has stopped wind and has entered into inside the motor cavity moreover to when reducing the complete machine wind and making an uproar, also avoided the influence of dust debris to the motor, make the product more reliable and stable, user experience is better.
Description
Technical Field
The utility model relates to a brushless motor safety protection technical field specifically is a DC brushless motor safety protection structure.
Background
The direct-current frequency-conversion high-speed electric hair dryer is becoming a mainstream product in the hairdressing market, an electronic frequency-conversion driving circuit is adopted to drive an internal direct-current brushless motor at a high speed, due to the characteristic of high efficiency and high rotation speed of the direct-current brushless motor, the air outlet quantity of the product is several times larger than that of the traditional electric hair dryer, and the electric hair dryer is matched with an electric heating body with certain power, so that the hair dryer is shorter in hair blowing time, and better in user experience; compared with the common hair drier, the direct current frequency conversion high-speed electric hair drier has the advantages of small vibration, low noise and smaller volume.
The product characteristics of the high-speed air flow of the direct-current variable-frequency high-speed electric hair dryer generate more details on the overall design of the products and require higher design requirements;
inside high-speed rotation that adopts DC brushless motor of this kind of hair-dryer, adopt electronic circuit to carry out the electronic commutation, the rotation of motor can not produce mechanical oscillation and friction noise, the frequency that adopts when frequency conversion driving motor simultaneously is also very high, the electromagnetic noise has also further been avoided, this is the low noise characteristic that DC brushless motor originally possessed, but the noise level of hairdryer complete machine still depends on the structural design of inside air flue, it is relatively unobstructed, and is level and smooth, the noise that produces when the air flue of unblock reflection can further reduce hairdryer inside air high-speed flow, any one plane of reflection can all increase not little wind and make an uproar.
Meanwhile, the hair dryer adopts a high-speed direct-current brushless motor, so that the air intake/exhaust volume in unit time is more than 5-10 times larger than that of a common hair dryer, dust, floating objects and plush short scraps in the ambient environment during working are more easily captured by an air inlet of the hair dryer, although the air inlet is provided with a filter screen, a small amount of the dust, the floating objects and the plush short scraps can enter the hair dryer, most of the dust, the floating objects and the plush short scraps can be discharged to the outside along with the air pressure of an air duct, a small amount of the dust, the floating objects and the plush short scraps can be retained at dead corners inside the hair dryer, such as the back of the direct-current brushless motor, the dust, the floaters and the plush short scraps can be attached to grease on the surface of a motor bearing, if the dust, the air inlet and the lint short scraps are accumulated for a long time, the motor bearing can be damaged, the unsmooth operation can be caused in serious cases, and the motor can be further violently heated, and the motor can be blocked and burnt.
In an actual product, a fan, an air duct and a motor are a combined integral module, the motor is positioned in the center of the air duct, a coil stator of the motor is installed in a hollow cavity in the air duct, a lead of a motor winding coil is led out through a lead positioned on the right side of the motor and then converged on a circuit board, and a socket on a PCB (printed circuit board) is connected to an electronic circuit to drive the motor.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a brushless DC motor safety protection structure to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a brushless DC motor safety protection structure, includes motor stator support, brushless DC motor stator and PCB stator winding wiring board, brushless DC motor stator installs in PCB stator winding wiring board, just brushless DC motor stator installs in motor stator support inner chamber, brushless DC motor stator leaves the space with PCB stator winding wiring board junction, space department installation protection component.
Preferably, the application provides a brushless DC motor safety protection structure, wherein, the protection component includes the protective sheath, the protective sheath is the loop configuration.
Preferably, the application provides a brushless DC motor safety protection structure, wherein, the protective sheath adopts plastics, rubber or PVC material to make.
Preferably, the application provides a DC brushless motor safety protection structure, wherein, the protective sheath is installed in space department, just DC brushless motor stator and PCB stator winding wiring board lateral wall are hugged closely to the protective sheath.
Preferably, the application provides a DC brushless motor safety protection structure, wherein, motor stator support inner chamber installation motor steel axle and fan, the motor steel axle is connected with DC brushless motor stator, the fan is installed in the motor steel axle.
Preferably, the application provides a brushless dc motor safety protection structure, wherein, motor bearing assembly and permanent magnet rotor are installed respectively to motor steel shaft outside.
Preferably, the application provides a brushless dc motor safety protection structure, wherein, the inside wind channel that forms of motor stator support.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses structural design is novel, under the unchangeable circumstances of current structure, increases protective assembly, seals DC brushless motor stator and PCB stator winding wiring board junction space, has not only prevented the vortex that high-speed wind formed here, has stopped moreover that wind enters into inside the motor cavity to when reducing complete machine wind and making an uproar, also avoided dust debris to the influence of motor, make more reliable and stable of product, user uses and experiences better.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the protection assembly of the present invention;
FIG. 3 is a schematic view of the installation of the protection assembly of the present invention;
in the figure: the motor stator comprises a motor stator support 1, a direct current brushless motor stator 2, a PCB stator winding wiring board 3, a gap 4, a protection assembly 5, a protection sleeve 6, a motor steel shaft 7, a fan 8, a motor bearing assembly 10 and a permanent magnet rotor 11.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Referring to fig. 1-3, the present invention provides a technical solution: a safety protection structure of a direct current brushless motor comprises a motor stator support 1, a direct current brushless motor stator 2 and a PCB stator winding wiring board 3, wherein an air duct is formed inside the motor stator support 1, a motor steel shaft 7 and a fan 8 are installed in an inner cavity of the motor stator support 1, the motor steel shaft 7 is connected with the direct current brushless motor stator 2, and the fan 8 is installed on the motor steel shaft 7; motor bearing subassembly 10 and permanent magnet rotor 11 are installed respectively to motor steel axle 7 outside, DC brushless motor stator 2 installs in PCB stator winding wiring board 3, just DC brushless motor stator 2 installs in 1 inner chamber of motor stator support, DC brushless motor stator 2 leaves space 4 with 3 junctions of PCB stator winding wiring board, space 4 department installation protection component 5.
In the utility model, the protection component 5 comprises a protection sleeve 6, and the protection sleeve 6 is in an annular structure; the protective sleeve 6 is made of plastic, rubber or PVC material; protective sheath 6 is installed in space 4 department, just direct current brushless motor stator 2 and the 3 lateral walls of PCB stator winding wiring board are hugged closely to protective sheath 6.
After the protection is increased between the direct current brushless motor stator is qualified for the next round of competitions and the PCB stator winding wiring board, direct current brushless motor stator is qualified for the next round of competitions and forms a complete whole with PCB stator winding wiring board, no longer forms the interference to high-speed wind, also can not be inside the motor with wind vortex, the effectual windage noise value that reduces the complete machine, and also reduce dust and debris to the harmful effects of motor, the utility model discloses a protection component has certain intensity and toughness, and resistant certain temperature has insulating properties, can be tight parcel and connect here formation relatively sealed whole, is difficult for droing, has increased protection component, and the effectual protection and isolation of having carried out, the human body is difficult to the touching, has reduced the incident's of production emergence.
To sum up, the utility model discloses structural design is novel, under the unchangeable circumstances of current structure, increases protection component, seals DC brushless motor stator and PCB stator winding wiring board junction space, has not only prevented the vortex that high-speed wind formed here, has stopped moreover that wind enters into inside the motor cavity to when reducing complete machine wind and making an uproar, also avoided dust debris to the influence of motor, make more reliable and stable of product, user uses and experiences better.
It should be noted that, in this document, terms such as "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (7)
1. The utility model provides a brushless DC motor safety protection structure, includes motor stator support (1), brushless DC motor stator (2) and PCB stator winding wiring board (3), its characterized in that: the direct current brushless motor stator (2) is installed in PCB stator winding wiring board (3), just direct current brushless motor stator (2) is installed in motor stator support (1) inner chamber, direct current brushless motor stator (2) leaves space (4) with PCB stator winding wiring board (3) junction, space (4) department installation protective component (5).
2. The safety protection structure of a brushless dc motor according to claim 1, wherein: the protective component (5) comprises a protective sleeve (6), and the protective sleeve (6) is of an annular structure.
3. The safety protection structure of a brushless dc motor according to claim 2, wherein: the protective sleeve (6) is made of plastic, rubber or PVC materials.
4. The safety protection structure of a brushless dc motor according to claim 2, wherein: the protective sleeve (6) is arranged at the position of the gap (4), and the protective sleeve (6) is tightly attached to the outer side wall of the direct current brushless motor stator (2) and the PCB stator winding wiring board (3).
5. The safety protection structure of a brushless dc motor according to claim 1, wherein: motor steel axle (7) and fan (8) are installed to motor stator support (1) inner chamber, motor steel axle (7) are connected with direct current brushless motor stator (2), fan (8) are installed in motor steel axle (7).
6. The safety protection structure of the brushless DC motor according to claim 5, wherein: and a motor bearing assembly (10) and a permanent magnet rotor (11) are respectively arranged outside the motor steel shaft (7).
7. The safety protection structure of a brushless dc motor according to claim 1, wherein: an air duct is formed inside the motor stator support (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222736541.3U CN218587042U (en) | 2022-10-17 | 2022-10-17 | Safety protection structure of direct current brushless motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222736541.3U CN218587042U (en) | 2022-10-17 | 2022-10-17 | Safety protection structure of direct current brushless motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218587042U true CN218587042U (en) | 2023-03-07 |
Family
ID=85375255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222736541.3U Active CN218587042U (en) | 2022-10-17 | 2022-10-17 | Safety protection structure of direct current brushless motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218587042U (en) |
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2022
- 2022-10-17 CN CN202222736541.3U patent/CN218587042U/en active Active
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