CN109088514B - Dust-free heat dissipation micro motor - Google Patents
Dust-free heat dissipation micro motor Download PDFInfo
- Publication number
- CN109088514B CN109088514B CN201811053983.XA CN201811053983A CN109088514B CN 109088514 B CN109088514 B CN 109088514B CN 201811053983 A CN201811053983 A CN 201811053983A CN 109088514 B CN109088514 B CN 109088514B
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- Prior art keywords
- dust
- motor
- roller
- cylinder
- heat dissipation
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- 230000017525 heat dissipation Effects 0.000 title claims abstract description 34
- 239000000428 dust Substances 0.000 claims abstract description 38
- 238000004080 punching Methods 0.000 claims abstract description 14
- 210000000078 claw Anatomy 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 2
- 125000003003 spiro group Chemical group 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/18—Casings or enclosures characterised by the shape, form or construction thereof with ribs or fins for improving heat transfer
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention belongs to the technical field of motors, and mainly relates to a dust-free heat dissipation micro motor which comprises a motor shell, a stator and a rotor, wherein the stator and the rotor are arranged in the motor shell, mounting holes are formed in the two ends of the motor shell coaxially, first bearings are arranged in the mounting holes respectively, a roller is arranged on the first bearings, an output shaft is arranged in the roller coaxially, a supporting column is fixedly connected between the output shaft and the roller, fan blades are arranged in the roller on the output shaft, the rotor comprises a plurality of rotor punching sheets, the rotor punching sheets are sleeved and arranged on the roller, and the dust dissipation performance is good, and meanwhile, dust can be prevented from entering the motor.
Description
Technical Field
The invention belongs to the technical field of motors, and particularly relates to a dust-free heat dissipation micro motor.
Background
An electric machine (also known as "motor") refers to an electromagnetic device that converts or transmits electric energy according to the law of electromagnetic induction. Denoted in the circuit by the letter M (old standard by D). Its main function is to generate driving torque as power source of electric appliance or various machines. The generator is denoted in the circuit by the letter G. Its main function is to convert electric energy into mechanical energy.
However, when the motor is adopted as a power device, heat is generated during work, the heat is caused by poor ventilation of the motor, much dust in the motor and the like, when the heat dissipation is poor, the power consumption is increased, and the motor can be damaged if the heat dissipation is serious; if the circumferential surface of the motor shell is provided with the air inlet hole, dust is easy to enter when the motor is not used.
Disclosure of Invention
Based on the problems mentioned in the background art, the invention provides a dust-free heat dissipation micro motor, which has good heat dissipation performance and can prevent dust from entering the interior of the motor.
The technical scheme adopted by the invention is as follows:
the utility model provides a dustless heat dissipation micro motor, includes motor housing and installs in inside stator and the rotor of motor housing, the mounting hole has been seted up with the axle center at the motor housing both ends, all install first bearing in the mounting hole, install the cylinder on the first bearing, establish the output shaft with the axle center in the cylinder, fixedly connected with support column between output shaft and the cylinder, the output shaft installs the fan piece in the cylinder, the rotor includes a plurality of rotor punching, the rotor punching cover is established and is installed on the cylinder.
On the basis of the technical scheme, the invention is further improved as follows:
further inject, install the cylinder mount pad in the first bearing, the cylinder mount pad is echelonment drum structure, includes first level drum and second level drum, the external diameter of first level drum is greater than the external diameter of second level drum, radially seted up first fixed orifices on the second level drum, the first blind hole with second level drum assorted is seted up to cylinder both ends axial, the cylinder has seted up the second fixed orifices in first blind hole corresponding position, the second level drum wears to locate in the first blind hole, cylinder and cylinder mount pad fixed connection. Such structural design is connected through the cylinder mount pad between cylinder and the first bearing, dismantles the in-process and makes things convenient for demolising of cylinder, need not to demolish the cylinder mount pad by first bearing on, simultaneously, offer on the cylinder with the first blind hole of second level drum assorted, make the cylinder cover locate on the cylinder mount pad after stability better, difficult emergence is rocked during the rotation. In order to enhance the connection stability between the roller and the pipe barrel mounting seat, a limit groove can be arranged on the inner wall of the first blind hole, and a dovetail protrusion is arranged on the outer wall of the second-stage cylinder.
Further, the inner wall of the second fixing hole is provided with threads, a screw is installed between the roller and the roller mounting seat, and the screw penetrates through the first fixing hole and is screwed in the second fixing hole. Due to the structural design, the roller and the roller mounting seat are fixed in a screw connection mode, so that the roller and the roller mounting seat are more convenient to detach and mount.
Further inject, the quantity of first fixed orifices and second fixed orifices is six, the second blind hole has been seted up in first fixed orifices corresponding position to the cylinder mount pad inner wall, the spiro union in the second fixed orifices the spiral shell head of screw is located the second blind hole. Due to the structural design, the screws screwed into the first fixing hole and the second fixing hole are not easy to loosen due to centripetal force applied to the screws when the roller rotates.
Further inject, first dust slot has all been seted up at motor housing both ends, the second dust slot has been seted up to the cylinder inner wall, the dust tube is all installed at the cylinder both ends in the inner wall, the cross-section of dust tube is the L font, the first dust slot of dust tube and second dust slot correspond the position and are equipped with first arch and second arch respectively, all install the second bearing between first arch and first dust slot, second arch and the second dust slot. Such structural design can shelter from first bearing and cylinder mount pad through a dustproof section of thick bamboo, avoids the dust to get into motor housing inside.
Further, the dustproof cylinder comprises an inner cylinder and an outer ring, the inner cylinder is located inside the roller, the outer ring is located at the end of the motor shell, the length of the inner cylinder is larger than the distance from the second dustproof groove to the end of the motor shell, the radius difference between the outer circle and the inner circle of the outer ring is larger than the distance from the first dustproof groove to the inner cylinder, and a gap is reserved between the outer ring and the motor shell. Such structural design, a dust-proof cylinder can also be better shelter from the second bearing when sheltering from first bearing and cylinder mount pad, reduces the dust and gets into the second bearing, simultaneously because there is the gap between outer ring and the motor housing for dust-proof cylinder can not produce the friction with motor housing between when following the cylinder rotation, thereby avoids producing the work that the heat influences the motor.
Further inject, the rotor punching includes the rotor circle, integrated into one piece is equipped with T shape claw on the outer circumference of rotor circle, the dovetail has been seted up to the rotor circle in interior circumference, integrated into one piece is equipped with the connection arch that matches with the dovetail on the cylinder outer wall, be connected through dovetail and connection arch between rotor punching and the cylinder. The structure design is simple, the material cost and the working hour cost of the motor are saved, the automatic production is favorably realized, and the rotor punching sheet can be better fixed on the roller.
Further, two support areas are arranged between the output shaft and the roller, and each support area is composed of four support columns. Due to the structural design, the output shaft and the roller are fixedly connected through the two supporting areas, so that the output shaft is not prone to deviation and deviates from the central axis of the roller.
Further defined, the fan is located in the middle of the drum. Due to the structural design, the fan blades are positioned in the middle of the roller, and the heat can be well dissipated no matter the output shaft rotates forwards or backwards.
Further limited, a plurality of heat dissipation fins are arranged on the outer wall of the motor shell, and the heat dissipation fins and the motor shell are integrally formed. Due to the structural design, the surface machine of the motor shell is increased through the radiating fins, and the radiating effect of the motor shell is improved.
Further, the outer wall of the roller is coated with an insulating protective coating. Due to the structural design, the electric leakage of the roller can be avoided, and the safety of the motor is good.
Further, the inner wall of the roller is coated with an epoxy resin layer. Due to the structural design, the dustproof capacity of the roller can be improved, and dust is not easy to adhere to the inner wall of the roller.
The invention has the beneficial effects that:
the middle part of the motor is provided with a larger channel through the roller, so that air can freely pass through the larger channel, heat generated by the motor during working is taken away, the output shaft is provided with the fan blades in the roller, the fan blades are driven by the output shaft to generate wind power to blow out heat in the roller, meanwhile, negative pressure is formed at the other end to suck external cold air, the motor is axially cooled, and the heat dissipation performance is better; meanwhile, the motor shell is not required to be provided with air holes, so that the motor is in a closed state, and dust is prevented from entering the interior of the motor shell.
Drawings
The invention is further illustrated by the non-limiting examples given in the accompanying drawings;
FIG. 1 is a schematic structural diagram of a dust-free heat dissipation micro motor according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of a motor according to an embodiment of a heat dissipation micro motor of the present invention;
FIG. 3 is a schematic view of a roller structure in an embodiment of a dust-free heat dissipation micro-motor of the present invention;
FIG. 4 is a schematic cross-sectional view of a roller in an exemplary embodiment of a dust-free heat dissipation micro-motor of the present invention;
FIG. 5 is a schematic view of a roller mounting base in an embodiment of a dust-free heat dissipation micro-motor of the present invention;
FIG. 6 is a schematic structural diagram of a rotor sheet in an embodiment of a dust-free heat dissipation micro motor of the present invention;
the main element symbols are as follows:
the motor comprises a motor shell 1, heat dissipation fins 12, a first dust-proof groove 13, a second dust-proof groove 14, a first bearing 21, a roller mounting seat 22, a first-stage cylinder 221, a second-stage cylinder 222, a first fixing hole 223, a dust-proof cylinder 23, a roller 3, a connecting column 31, an output shaft 32, a connecting protrusion 33, a second fixing hole 34, a first blind hole 35, a rotor punching sheet 4, a rotor ring 41, a T-shaped claw 42, a dovetail groove 43, a stator 5 and a fan sheet 6.
Detailed Description
In order that those skilled in the art can better understand the present invention, the following technical solutions are further described with reference to the accompanying drawings and examples.
Examples
As shown in fig. 1 to 6, the invention relates to a dust-free heat dissipation micro motor, which comprises a motor housing 1, and a stator and a rotor which are installed inside the motor housing 1, wherein a plurality of heat dissipation fins 12 are arranged on the outer wall of the motor housing 1, the heat dissipation fins 12 are integrally formed with the motor housing 1, mounting holes are coaxially formed at two ends of the motor housing 1, first bearings 21 are respectively installed in the mounting holes, a roller 3 is installed on each first bearing 21, an insulating protective layer is coated on the outer wall of the roller 3, an epoxy resin layer is coated on the inner wall of the roller 3, an output shaft 32 is coaxially arranged in the roller 3, a support column 31 is fixedly connected between the output shaft 32 and the roller, two support zones are arranged between the output shaft 32 and the roller 3, each support zone is composed of four support columns 31, a fan blade 6 is installed in the middle part of the roller 3 on the output shaft 32, the rotor, the motor shell 1 comprises an end cover, when the motor shell is installed, the end cover is taken down, the first bearing 21 is firstly installed in an installation hole, then the stator 5 is installed inside the motor shell 1, then the rotor punching sheet 4 is sleeved on the roller 3, the roller with the rotor punching sheet 4 installed is installed on the motor shell 1, and finally the end cover is installed back to the motor shell 1.
Wherein, the roller mounting seat 22 is installed in the first bearing 21, the roller mounting seat 22 is a step-shaped cylinder structure and comprises a first-stage cylinder 221 and a second-stage cylinder 222, the outer diameter of the first-stage cylinder 221 is larger than the outer diameter of the second-stage cylinder 222, the second-stage cylinder 222 is radially provided with a first fixing hole 223, two ends of the roller 3 are axially provided with a first blind hole 35 matched with the second-stage cylinder 222, the roller 3 is provided with a second fixing hole 34 at a position corresponding to the first blind hole 35, the second-stage cylinder 222 is arranged in the first blind hole 35 in a penetrating manner, the roller 3 is fixedly connected with the roller mounting seat 22, the inner wall of the second fixing hole 34 is provided with threads, a screw is installed between the roller 3 and the roller mounting seat 22, the screw penetrates through the first fixing hole 223 and is screwed in the second fixing hole 34, the number of the first fixing hole 223 and the second fixing hole 34 are six, the inner wall of the roller mounting seat 22 is provided with a second, the screw head of the screw in the screw joint of the second fixing hole 34 is positioned in the second blind hole, and one end of the screw head of the screw is provided with a hexagonal groove. Such structural design, when installing, at first wear to locate first blind hole 35 with cylinder mount pad 22 in, then with the matching of going on first fixed orifices 223 and the position of second fixed orifices 34, penetrate the screw from the second blind hole, use the allen wrench to screw the screw, accomplish being connected between cylinder 3 and the cylinder mount pad 22.
The rotor sheet 4 comprises a rotor ring 41, a T-shaped claw 42 is integrally formed on the outer circumference of the rotor ring 41, a dovetail groove 43 is formed on the inner circumference of the rotor ring 41, a connecting protrusion 33 matched with the dovetail groove 43 is integrally formed on the outer wall of the roller 3, and the rotor sheet 4 is connected with the roller 3 through the dovetail groove 43 and the connecting protrusion 33. By the structural design, when the rotor sheet 4 is installed, the dovetail groove 43 on the rotor sheet 4 is matched with the connecting protrusion 33 on the roller 3, then the rotor sheet 4 is sleeved on the roller 3, and meanwhile, a preformed hole is formed in the rotor ring 41 and used for axially fixing the rotor sheet 4 in the radial direction.
The dust-free heat dissipation micro motor provided by the invention is described in detail above. The description of the specific embodiments is only intended to facilitate an understanding of the method of the invention and its core ideas. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (9)
1. The utility model provides a dustless heat dissipation micro motor, includes motor housing (1), installs in inside stator and the rotor of motor housing (1), its characterized in that: the motor comprises a motor shell (1), wherein mounting holes are formed in the two ends of the motor shell and the axle center, first bearings (21) are installed in the mounting holes, a roller (3) is installed on each first bearing (21), an output shaft (32) is installed in the roller (3) and the axle center, a supporting column (31) is fixedly connected between each output shaft (32) and the roller (3), fan blades (6) are installed in the roller (3) through the output shaft (32), the rotor comprises a plurality of rotor punching sheets (4), the rotor punching sheets (4) are sleeved and installed on the roller (3), a roller mounting seat (22) is installed in each first bearing (21), the roller mounting seat (22) is of a stepped cylinder structure and comprises a first-stage cylinder (221) and a second-stage cylinder (222), and the outer diameter of the first-stage cylinder (221) is larger than that of the second-stage cylinder (222), the drum is characterized in that a first fixing hole (223) is radially formed in the second-stage cylinder (222), first blind holes (35) matched with the second-stage cylinder (222) are axially formed in two ends of the drum (3), second fixing holes (34) are formed in the corresponding positions of the first blind holes (35) of the drum (3), the second-stage cylinder (222) penetrates through the first blind holes (35), and the drum (3) is fixedly connected with the drum mounting seat (22).
2. A dust-free heat dissipation micro-motor as recited in claim 1, wherein: the inner wall of the second fixing hole (34) is provided with threads, a screw is installed between the roller (3) and the roller installation seat (22), and the screw penetrates through the first fixing hole (223) and is screwed in the second fixing hole (34).
3. A dust-free heat dissipation micro-motor as claimed in claim 2, wherein: the quantity of first fixed orifices (223) and second fixed orifices (34) is six, the second blind hole has been seted up in first fixed orifices (223) corresponding position to cylinder mount pad (22) inner wall, and the spiro union is in second fixed orifices (34) the spiral shell head of screw is located the second blind hole.
4. A dust-free heat dissipation micro-motor as claimed in claim 3, wherein: first dust groove (13) have all been seted up at motor housing (1) both ends, second dust groove (14) have been seted up to cylinder (3) inner wall, dust tube (23) are all installed at cylinder (3) both ends in the inner wall, the cross-section of dust tube (23) is the L font, first dust groove (13) and second dust groove (14) on dust tube (23) correspond the position and are equipped with first arch and second arch respectively, all install the second bearing between first arch and first dust groove (13), the second arch and second dust groove (14).
5. The dust-free heat dissipation micro-motor as claimed in claim 4, wherein: the dustproof cylinder (23) comprises an inner cylinder and an outer ring, the inner cylinder is located inside the roller (3), the outer ring is located at the end of the motor shell (1), the length of the inner cylinder is larger than the distance from the second dustproof groove (14) to the end of the motor shell (1), the radius size difference between the outer circle and the inner circle of the outer ring is larger than the distance between the first dustproof groove (13) and the inner cylinder, and a gap is reserved between the outer ring and the motor shell (1).
6. A dust-free heat dissipation micro-motor as recited in claim 5, wherein: rotor punching (4) include rotor circle (41), integrated into one piece is equipped with T shape claw (42) on the outer circumference of rotor circle (41), dovetail (43) have been seted up in interior circumference to rotor circle (41), integrated into one piece has on cylinder (3) outer wall to be connected protruding (33) with dovetail (43) matching, be connected through dovetail (43) and connection protruding (33) between rotor punching (4) and cylinder (3).
7. A dust-free heat dissipation micro-motor as claimed in claim 6, wherein: two supporting areas are arranged between the output shaft (32) and the roller (3), and each supporting area is composed of four supporting columns (31).
8. A dust-free heat dissipation micro-motor as recited in claim 7, wherein: the fan blade (6) is positioned in the middle of the roller (3).
9. A dust-free heat dissipation micro-motor as recited in claim 8, wherein: the motor is characterized in that a plurality of heat dissipation fins (12) are arranged on the outer wall of the motor shell (1), and the heat dissipation fins (12) and the motor shell (1) are integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811053983.XA CN109088514B (en) | 2018-09-11 | 2018-09-11 | Dust-free heat dissipation micro motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811053983.XA CN109088514B (en) | 2018-09-11 | 2018-09-11 | Dust-free heat dissipation micro motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109088514A CN109088514A (en) | 2018-12-25 |
| CN109088514B true CN109088514B (en) | 2021-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811053983.XA Active CN109088514B (en) | 2018-09-11 | 2018-09-11 | Dust-free heat dissipation micro motor |
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| CN (1) | CN109088514B (en) |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5079464A (en) * | 1989-10-26 | 1992-01-07 | A. O. Smith Corporation | Multiply compartmented dynamoelectric machine |
| CN101752968A (en) * | 2009-12-21 | 2010-06-23 | 南京高传机电自动控制设备有限公司 | Internally air-cooled dual-rotor generator |
| CN102916401B (en) * | 2012-08-10 | 2014-12-10 | 杭州奥泰电器有限公司 | Motor with brake and overload protection |
| CN203071737U (en) * | 2012-12-28 | 2013-07-17 | 大洋电机新动力科技有限公司 | Motor air cooling structure |
| CN103151878A (en) * | 2013-04-03 | 2013-06-12 | 天津市松正电动汽车技术股份有限公司 | Air cooling motor |
| JP6038315B2 (en) * | 2013-06-27 | 2016-12-07 | 三菱電機株式会社 | Elevator hoisting machine |
| CN204442133U (en) * | 2015-03-26 | 2015-07-01 | 大连创为电机有限公司 | Vertical Mill 2MW permanent magnet direct-drive synchronous motor |
| CN205141920U (en) * | 2015-11-05 | 2016-04-06 | 孔令胜 | Can quick -witted creasing wheel of fabric bag of radiating nonwoven |
| CN106374661B (en) * | 2016-10-08 | 2019-01-04 | 珠海格力电器股份有限公司 | Rotor assembly and motor |
| CN106357037A (en) * | 2016-10-09 | 2017-01-25 | 珠海格力节能环保制冷技术研究中心有限公司 | Motor rotor and motor |
| CN107425690B (en) * | 2017-07-10 | 2019-07-12 | 江苏金丰机电有限公司 | A kind of high efficiency and heat radiation hollow-cup motor |
| CN207304221U (en) * | 2017-09-23 | 2018-05-01 | 天津正和金属有限公司 | A kind of motor housing |
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2018
- 2018-09-11 CN CN201811053983.XA patent/CN109088514B/en active Active
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| CN109088514A (en) | 2018-12-25 |
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Effective date of registration: 20220407 Address after: 311401 Building 2, No.12, No.6 Road, Dongzhou industrial functional zone, Dongzhou street, Fuyang District, Hangzhou City, Zhejiang Province Patentee after: Zhejiang Xinli Electrical Technology Co.,Ltd. Address before: 311401 No.12, No.6 Road, Dongzhou Industrial Park, Fuyang District, Hangzhou City, Zhejiang Province Patentee before: HANGZHOU AOTAI ELECTRICAL Co.,Ltd. |
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Denomination of invention: A Dustless Heat Dissipating Micromotor Effective date of registration: 20220929 Granted publication date: 20210105 Pledgee: Ningbo Tongshang Bank Co.,Ltd. Hangzhou Branch Pledgor: Zhejiang Xinli Electrical Technology Co.,Ltd. Registration number: Y2022980017172 |
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Date of cancellation: 20231115 Granted publication date: 20210105 Pledgee: Ningbo Tongshang Bank Co.,Ltd. Hangzhou Branch Pledgor: Zhejiang Xinli Electrical Technology Co.,Ltd. Registration number: Y2022980017172 |