CN217335308U - High-speed brushless motor for air blowing cylinder - Google Patents
High-speed brushless motor for air blowing cylinder Download PDFInfo
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- CN217335308U CN217335308U CN202220816514.4U CN202220816514U CN217335308U CN 217335308 U CN217335308 U CN 217335308U CN 202220816514 U CN202220816514 U CN 202220816514U CN 217335308 U CN217335308 U CN 217335308U
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- circular ring
- motor
- fan blade
- brushless motor
- bearing
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- Support Of The Bearing (AREA)
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a high-speed brushless motor for a blowing cylinder, which comprises a wiring board assembly, a stator assembly, a rotor assembly and a supporting body, wherein the wiring board assembly, the stator assembly and the rotor assembly are all arranged on the supporting body; wherein: the support body is provided with a first circular ring and a second circular ring which are concentrically arranged; the first circular ring is provided with a first through cavity, and an air duct is formed between the first circular ring and the second circular ring; one end of the rotor component is provided with a fan blade and is positioned at the outer side of the first circular ring, one of the first circular ring and the fan blade is provided with a positioning groove, and the other one of the first circular ring and the fan blade is provided with a positioning boss matched with the positioning groove; when the positioning device is installed, the positioning boss is matched with the positioning groove, so that: the fan blade seals an opening in one side of the first through cavity. So, through the concrete design to high-speed brushless motor for it has solved prior art, and the motor inhales the foreign matter easily, leads to the motor card to hinder, problem that the motor burns out.
Description
Technical Field
The utility model relates to a motor field of a section of thick bamboo of blowing especially relates to a high-speed brushless motor for a section of thick bamboo of blowing.
Background
The motor is an indispensable component of the air blowing cylinder, and the quality of the motor is directly related to the quality of the air blowing cylinder; the existing high-speed motor for the air blowing cylinder mainly has the following defects: when the motor works, the suction force of the air inlet of the motor is extremely large, the motor is sucked into hair and is drawn into the bearing, so that the motor is blocked and damaged due to the fact that the motor is burnt.
Secondly, the existing high-speed motor for the air blowing tube also has the following defects: 1. the brushless motor is relatively big when starting, and lean on the adhesive to bond between bearing and axle, bearing and the supporter, because drive the fan blade rotation under the high-speed rotation, can lead to producing very big axial force and radial revolving force between bearing and the axle, bearing and the supporter to lead to bearing and axle, bearing and supporter to have the risk of pine taking off. 2. The blades of the high-speed motor in the current market are basically made of aluminum alloy, and for the high-speed motor, the weight of the blades directly influences the rotor inertia of the motor, so that the load of the motor is large, and in addition, the motor is small in size and large in power, and has direct influence on the temperature rise, the efficiency and the service life of the motor.
Therefore, a new technical solution is needed to solve the above problems.
SUMMERY OF THE UTILITY MODEL
In order to solve the defects and the deficiencies of the prior art, the utility model provides a high-speed brushless motor for a section of thick bamboo of blowing, it is through the concrete design to high-speed brushless motor for it has solved prior art, and the motor inhales the foreign matter easily, leads to the motor card to hinder, the problem that the motor burns out.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a high-speed brushless motor for a blowing cylinder comprises a wiring board assembly, a stator assembly, a rotor assembly and a supporting body, wherein the wiring board assembly, the stator assembly and the rotor assembly are all arranged on the supporting body; wherein:
the support body is provided with a first circular ring and a second circular ring which are concentrically arranged; the first circular ring is provided with a first through cavity for mounting the rotor assembly, and an air duct is formed between the first circular ring and the second circular ring;
one end of the rotor component is provided with a fan blade and is positioned at the outer side of the first circular ring, one of the first circular ring and the fan blade is provided with a positioning groove, and the other one of the first circular ring and the fan blade is provided with a positioning boss matched with the positioning groove; when the positioning device is installed, the positioning boss is matched with the positioning groove, so that: the fan blade seals an opening on one side of the first through cavity.
Preferably, the rotor assembly has a shaft core and a bearing mounted on the shaft core, wherein:
the outer side surface of the shaft core corresponding to the mounting bearing is provided with a plurality of first grooves or knurls for containing adhesives.
As a preferable scheme, the groove depth of the first groove is 0.02-0.1 mm; the depth of the knurled groove is 0.02-0.1 mm.
Preferably, the first through cavity is provided with a bearing chamber corresponding to the bearing, wherein the inner wall surface of the bearing chamber is provided with a plurality of second grooves for accommodating an adhesive.
Preferably, the groove depth of the second groove is 0.02-0.05 mm.
As a preferred scheme, the fan blades are magnesium aluminum alloy pieces.
Compared with the prior art, the utility model has obvious advantages and beneficial effects, concretely, the technical scheme is that the high-speed brushless motor is designed, so that the problems that the motor is easy to suck foreign matters, the motor is blocked and the motor is burnt out in the prior art are solved; secondly, it has the following advantages compared with the prior art:
1. by providing corresponding grooves or knurls, so that: the bonding strength of the bearing and the shaft core is higher, and the risk of loosening the bearing and the shaft core and the bearing and the support body is reduced;
2. the aluminum-magnesium alloy is adopted to manufacture the motor fan blade, the mass of the motor fan blade is smaller than that of aluminum alloy, the motor power can be effectively reduced, and the motor fan blade is more beneficial to the aspects of temperature rise control, efficiency improvement, service life and the like of the motor.
To illustrate the structural features and functions of the present invention more clearly, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
Drawings
Fig. 1 is a schematic perspective view of an embodiment of the present invention;
FIG. 2 is an exploded view of an embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view of an embodiment of the present invention;
FIG. 4 is an enlarged partial schematic view of FIG. 3;
FIG. 5 is a perspective view of a support body according to an embodiment of the present invention;
fig. 6 is a schematic perspective view of a fan blade according to an embodiment of the present invention;
fig. 7 is a schematic perspective view of the shaft core and the magnetic ring in the embodiment of the present invention;
fig. 8 is a schematic perspective view of a stator assembly according to an embodiment of the present invention.
The attached drawings indicate the following:
10. a terminal board assembly; 20. a stator assembly; 30. a rotor assembly; 301. a shaft core; 3011. knurling; 302. a bearing; 303. a magnetic ring; 31. a fan blade; 311. positioning the boss; 40. a support body; 41. a first circular ring; 411. a first through cavity; 4111. a second groove; 412. a positioning groove; 42. a second circular ring; 43. an air duct; 50. an insulating material.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiment is only a preferred embodiment of the present invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 to 8, in an embodiment of the present invention, a high-speed brushless motor for a blower barrel includes a wiring board assembly 10, a stator assembly 20, a rotor assembly 30, and a support body 40, wherein the wiring board assembly 10, the stator assembly 20, and the rotor assembly 30 are all mounted on the support body 40; wherein:
the supporting body 40 is provided with a first circular ring 41 and a second circular ring 42 which are concentrically arranged; the first ring 41 is provided with a first through cavity 411 for mounting the rotor assembly 30, and an air duct 43 is formed between the first ring 41 and the second ring 42;
in addition, one end of the rotor assembly 30 is provided with a fan blade 31 and is positioned outside the first circular ring 41, one of the first circular ring 41 and the fan blade 31 is provided with a positioning groove 412, and the other is provided with a positioning boss 311 matched with the positioning groove 412; when installed, the positioning boss 311 fits into the positioning groove 412, so that: the fan blade 31 closes an opening on one side of the first through cavity 411.
Referring to fig. 5 and 6, a positioning groove 412 is arranged on the first ring 41, and the fan blade 31 has a positioning boss 311 adapted to the positioning groove 412; thus, the matching of the positioning groove 412 and the positioning boss 311 blocks the path of sundries such as hair directly entering the first through cavity 411; it has solved among the prior art, debris such as hair get into logical chamber from the clearance between fan blade 31 and the first ring 41 easily, are drawn into stator module 20 and lead to the not enough of motor damage, have prolonged the life of motor effectively and have guaranteed the job stabilization nature of motor.
Further, the rotor assembly 30 has a shaft core 301 and a bearing 302 mounted on the shaft core 301, wherein:
the outer side surface of the shaft core 301 corresponding to the mounting bearing 302 is provided with a plurality of first grooves or knurls 3011 for accommodating adhesives. In this manner, by providing the first groove or knurling 3011 at the position of the shaft core 301 corresponding to the mounting of the bearing 302, that is, by providing a groove for storing the adhesive between the shaft core 301 and the bearing 302, the bonding strength of both the shaft core 301 and the bearing 302 is increased. In practical applications, the first groove may be provided on the inner annular wall of the bearing 302, which can also increase the bonding strength between the shaft core 301 and the bearing 302.
Typically, the groove depth of the first groove is 0.02-0.1 mm; the groove depth of the knurls 3011 is 0.02-0.1 mm.
Further, the first through cavity 411 has a bearing 302 chamber corresponding to the bearing 302, wherein the inner wall surface of the bearing 302 chamber is provided with a plurality of second grooves 4111 for accommodating an adhesive. In this way, by providing the second groove 4111 for storing the adhesive at the position where the support 40 is installed corresponding to the bearing 302, the bonding strength of both the bearing 302 and the support 40 is increased. In general, the groove depth of the second groove 4111 is 0.02 to 0.05 mm. Of course, in practical applications, the second groove 4111 may also be disposed on the bearing 302.
Preferably, the fan blades 31 are magnesium aluminum alloy pieces; compared with the existing fan blade 31 made of aluminum alloy material, the fan blade has the advantages that the structural strength required by normal work can be met, the quality is lower, the load pressure of the motor is reduced, the power of the motor is effectively reduced, and the fan blade is more beneficial to the aspects of temperature rise control, efficiency improvement, service life and the like of the motor.
Further, the shaft core 301 is further provided with a magnetic ring 303, and since the rotational speed of the high-speed brushless motor of the air blowing cylinder is very high, usually more than 10 ten thousand rotational speeds, the requirement of the motor on the concentricity of the magnetic ring 303 and the shaft core 301 is very high, otherwise, the motor generates vibration or high frequency noise. Aiming at the technical problem, the inventor bonds and assembles the magnetic ring 303 and the bearing 302 and then further carries out external grinding treatment; thereby guaranteeing the concentricity of the magnetic ring 303 and the shaft core 301, and optimizing the vibration and noise problems of the motor.
Furthermore, the three-phase high-speed brushless motor in the market at present is small in size and high in power, and is a high-voltage motor, so that the phenomenon that the creepage distance and the electric clearance are insufficient often exists, and the requirement of safety standard cannot be met. In response to this defect, generally, the stator assembly 20 includes a stator and a plurality of windings (enameled wires), a gap is maintained between adjacent windings, and the insulation material 50 is injected into the gap, and covers the outer surface of the enameled wire, and then is baked and cured to achieve solid insulation, so as to meet the safety standard. The insulating material may be a sizing.
The design of the utility model is mainly characterized in that the problems of motor jamming and motor burnout caused by foreign matter easily sucked by the motor in the prior art are solved by the specific design of the high-speed brushless motor;
secondly, it has the following advantages compared with the prior art:
1. by providing corresponding grooves or knurls such that: the bonding strength of the bearing and the shaft core is higher, and the risk of loosening the bearing and the shaft core and the bearing and the support body is reduced;
2. the aluminum-magnesium alloy is adopted to manufacture the motor fan blade, the mass of the motor fan blade is smaller than that of aluminum alloy, the power of the motor can be effectively reduced, and the motor fan blade is more beneficial to the aspects of temperature rise control, efficiency improvement, service life and the like of the motor;
3. after the magnetic ring and the bearing are bonded and assembled, the outer circle grinding treatment is further carried out; thereby ensuring the concentricity of the magnetic ring and the shaft core, and optimizing the vibration and noise problems of the motor;
4. injecting insulating material into the gaps of the windings, coating the outer surface of the enameled wire, baking and solidifying to realize solid insulation, thereby solving the problem that the creepage distance and the electric gap of the existing motor are not enough.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any slight modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments are all within the scope of the technical solution of the present invention.
Claims (6)
1. A high-speed brushless motor for a blowing cylinder, characterized in that: the motor comprises a wiring board assembly, a stator assembly, a rotor assembly and a supporting body, wherein the wiring board assembly, the stator assembly and the rotor assembly are all arranged on the supporting body; wherein:
the support body is provided with a first circular ring and a second circular ring which are concentrically arranged; the first circular ring is provided with a first through cavity for mounting the rotor assembly, and an air duct is formed between the first circular ring and the second circular ring;
one end of the rotor component is provided with a fan blade and is positioned at the outer side of the first circular ring, one of the first circular ring and the fan blade is provided with a positioning groove, and the other one of the first circular ring and the fan blade is provided with a positioning boss matched with the positioning groove; when the positioning device is installed, the positioning boss is matched with the positioning groove, so that: the fan blade seals an opening on one side of the first through cavity.
2. A high speed brushless motor for a blower barrel according to claim 1, wherein: the rotor assembly has a shaft core and a bearing mounted on the shaft core, wherein:
the outer side surface of the shaft core corresponding to the mounting bearing is provided with a plurality of first grooves or knurls for containing adhesives.
3. A high speed brushless motor for a blower barrel according to claim 2, wherein: the depth of the first groove is 0.02-0.1 mm; the depth of the knurled groove is 0.02-0.1 mm.
4. A high speed brushless motor for a blower barrel according to claim 2, wherein: the first through cavity is provided with a bearing chamber corresponding to the bearing, wherein the inner wall surface of the bearing chamber is provided with a plurality of second grooves for containing a bonding agent.
5. A high speed brushless motor for a blower barrel according to claim 4, wherein: the groove depth of the second groove is 0.02-0.05 mm.
6. A high speed brushless motor for a blower barrel according to claim 1, wherein: the fan blades are magnesium aluminum alloy pieces.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220816514.4U CN217335308U (en) | 2022-04-11 | 2022-04-11 | High-speed brushless motor for air blowing cylinder |
| JP2022187088A JP7292769B1 (en) | 2022-04-11 | 2022-11-24 | split motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220816514.4U CN217335308U (en) | 2022-04-11 | 2022-04-11 | High-speed brushless motor for air blowing cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217335308U true CN217335308U (en) | 2022-08-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220816514.4U Active CN217335308U (en) | 2022-04-11 | 2022-04-11 | High-speed brushless motor for air blowing cylinder |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP7292769B1 (en) |
| CN (1) | CN217335308U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7292769B1 (en) | 2022-04-11 | 2023-06-19 | 東莞市馳駆電机有限公司 | split motor |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01106629U (en) * | 1988-01-11 | 1989-07-18 | ||
| JPH0487547A (en) * | 1990-07-25 | 1992-03-19 | Matsushita Electric Works Ltd | Brushless fan motor |
| JPH04133650A (en) * | 1990-09-25 | 1992-05-07 | Matsushita Electric Works Ltd | Electric brushless motor for blower |
| JPH04150747A (en) * | 1990-10-12 | 1992-05-25 | Toshiba Corp | Stator structure for electric rotating machine |
| GB2545269B (en) | 2015-12-11 | 2018-02-28 | Dyson Technology Ltd | An electric motor |
| CN217335308U (en) | 2022-04-11 | 2022-08-30 | 东莞市驰驱电机有限公司 | High-speed brushless motor for air blowing cylinder |
-
2022
- 2022-04-11 CN CN202220816514.4U patent/CN217335308U/en active Active
- 2022-11-24 JP JP2022187088A patent/JP7292769B1/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7292769B1 (en) | 2022-04-11 | 2023-06-19 | 東莞市馳駆電机有限公司 | split motor |
| JP2023155876A (en) * | 2022-04-11 | 2023-10-23 | 東莞市馳駆電机有限公司 | Split-type motor |
Also Published As
| Publication number | Publication date |
|---|---|
| JP7292769B1 (en) | 2023-06-19 |
| JP2023155876A (en) | 2023-10-23 |
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