CN215419958U - Constant-rotating-speed heat dissipation motor for electric tool - Google Patents
Constant-rotating-speed heat dissipation motor for electric tool Download PDFInfo
- Publication number
- CN215419958U CN215419958U CN202121743138.2U CN202121743138U CN215419958U CN 215419958 U CN215419958 U CN 215419958U CN 202121743138 U CN202121743138 U CN 202121743138U CN 215419958 U CN215419958 U CN 215419958U
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- China
- Prior art keywords
- heat dissipation
- rotor
- motor
- motor body
- constant
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- 230000017525 heat dissipation Effects 0.000 title claims abstract description 65
- 230000005540 biological transmission Effects 0.000 claims abstract description 13
- 230000005855 radiation Effects 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 10
- 238000001816 cooling Methods 0.000 description 19
- 230000009471 action Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The utility model relates to the technical field of electric tools and discloses a constant-rotating-speed heat dissipation motor for an electric tool, which comprises a motor body, wherein a transmission shaft is fixedly connected to a transmission end of the motor body, a heat dissipation grid is fixedly installed in the middle of the motor body, a top cover is fixedly installed at the upper end of the motor body, a heat dissipation net is fixedly installed at the upper end of the top cover, a first rotor is movably installed at the lower end inside the motor body, a bearing is fixedly installed at the upper end of the first rotor, and a second stator is fixedly installed at the upper end inside the motor body. This constant rotational speed heat dissipation motor for electric tool utilizes inside double-shaft drive for motor body when the load, radiator fan can keep original revolution to rotate under the drive of second rotor, has realized that inside radiator fan lasts rotatory heat dissipation with invariable revolution, has avoided the motor to lead to the radiating effect variation that the revolution descends to bring because of the load, the effectual radiating effect that has improved.
Description
Technical Field
The utility model relates to the technical field of electric tools, in particular to a constant-rotating-speed heat dissipation motor for an electric tool.
Background
The electric tool is a mechanical tool, which uses a motor or an electromagnet as power, drives a working head to operate through a transmission mechanism, is usually made into a handheld type and a movable type, has a light structure, is convenient to carry and use, can improve the production efficiency by several times to several tens times compared with a manual tool, and is widely applied to various fields of national economy and enters families for use.
In the use of the conventional electric tool, the internal heat dissipation fan rotates along with the rotation of the internal motor rotor, so that the high heat dissipation effect of the revolution of the motor in the idling process is good, the rotor speed is reduced under the stress condition, the revolution of the fan is reduced simultaneously, the heat dissipation effect of the fan is poor, and the heat dissipation fan cannot rotate at the constant revolution, so that the practicability is reduced.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
Aiming at the defects of the prior art, the utility model provides a constant-rotating-speed heat dissipation motor for an electric tool, which solves the defects and problems in the background technology, and utilizes internal double-shaft transmission to ensure that a heat dissipation fan can keep the original rotation number to rotate under the driving of a second rotor when a motor body is loaded, so that the internal heat dissipation fan continuously rotates at the constant rotation number to dissipate heat, the problem that the heat dissipation effect of the motor is poor due to the reduction of the rotation number caused by the load is avoided, and the heat dissipation effect is effectively improved.
(II) technical scheme
In order to achieve the purpose, the utility model provides the following technical scheme: a constant-rotating-speed heat dissipation motor for an electric tool comprises a motor body, wherein a transmission shaft is fixedly connected to a transmission end of the motor body, a heat dissipation grid net is fixedly mounted in the middle of the motor body, a top cover is fixedly mounted at the upper end of the motor body, a heat dissipation net is fixedly mounted at the upper end of the top cover, a first rotor is movably mounted at the lower end of the interior of the motor body, a bearing is fixedly mounted at the upper end of the first rotor, a second stator is fixedly mounted at the upper end of the interior of the motor body, a second rotor is movably mounted at the interior of the second stator, a first driving shaft is fixedly mounted at the lower end of the second rotor, a permanent magnet is fixedly mounted at the outer end of the middle of the first driving shaft, a second driving shaft is fixedly mounted at the upper end of the second rotor, an anti-deviation wheel is fixedly mounted at the middle of the second driving shaft, and a first heat dissipation fan is fixedly mounted at the upper end of the second driving shaft, the lower end of the first driving shaft is fixedly provided with a connecting shaft, the middle of the connecting shaft is fixedly provided with a second cooling fan, and the lower end of the interior of the motor body is fixedly provided with a first stator.
Preferably, the second rotor and the first rotor have the same structure, the first stator and the second stator have the same structure, the first rotor and the second rotor maintain the same rotation torque, and when the first rotor is loaded by force, the second rotor rotates while maintaining the original rotation speed.
Preferably, the permanent magnet is fixed in a surrounding mode at the outer end in the middle of the driving shaft, the first cooling fan is located inside the top cover, and when the second stator is electrified to generate a magnetic field, the permanent magnet drives the driving shaft to rotate under the action of magnetic force.
Preferably, the lower extreme and the bearing fixed connection of connecting axle, second radiator fan is located the inside of heat dissipation graticule mesh, can make to be coaxial not fast rotation between connecting axle and the first rotor through the installation bearing.
Preferably, the second cooling fan and the first cooling fan are of the same structure, the first rotor and the second rotor rotate coaxially, and the second cooling fan is mounted to dissipate heat of the first rotor and the first stator in the middle of the motor body.
Preferably, the connecting axle passes through bearing and first rotor swing joint, be the connectivity between heat dissipation graticule mesh and the radiator-grid, through heat dissipation graticule mesh and radiator-grid intercommunication for when the heat dissipation, inside hot gas flow can have reached rapid cooling's effect in the inside rapid flow of motor body.
Compared with the prior art, the utility model provides a constant-rotating-speed heat dissipation motor for an electric tool, which has the following beneficial effects:
1. according to the constant-rotating-speed heat dissipation motor for the electric tool, internal double-shaft transmission is utilized, so that when the motor body is loaded, the heat dissipation fan can keep the original rotation number to rotate under the driving of the second rotor, the internal heat dissipation fan continuously rotates at the constant rotation number to dissipate heat, the heat dissipation effect deterioration caused by the reduction of the rotation number of the motor due to the load is avoided, and the heat dissipation effect is effectively improved;
2. the constant-rotating-speed heat dissipation motor for the electric tool is characterized in that shaft ends are connected through bearings, so that a motor transmission rotor and a heat dissipation rotor rotate in a distinguished mode, partial rotation torque for driving a heat dissipation fan is saved by the transmission rotor, the output power of the motor is reduced, and the energy-saving performance of the motor is effectively improved;
3. this electric tool is with constant rotational speed heat dissipation motor through the middle part with second radiator fan installation and motor body, can dispel the heat between first rotor and the first stator, and the mobile speed of multiplicable motor body inside air has further improved heat dispersion simultaneously.
Drawings
FIG. 1 is a first perspective view of the present invention;
FIG. 2 is a schematic perspective view of the present invention;
FIG. 3 is a perspective view of a second stator according to the present invention;
fig. 4 is a schematic perspective view of a second rotor according to the present invention.
Wherein: 1. a motor body; 2. a drive shaft; 3. a heat dissipation grid; 4. a top cover; 5. a heat-dissipating web; 6. a first rotor; 7. a bearing; 8. a second stator; 9. a second rotor; 10. a permanent magnet; 11. a first driving shaft; 12. a second driving shaft; 13. an anti-deviation wheel; 14. a first heat dissipation fan; 15. a connecting shaft; 16. a second heat dissipation fan; 17. a first stator.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: a constant-rotating-speed heat dissipation motor for an electric tool comprises a motor body 1, a transmission shaft 2 is fixedly connected to a transmission end of the motor body 1, a heat dissipation grid 3 is fixedly installed in the middle of the motor body 1, a top cover 4 is fixedly installed at the upper end of the motor body 1, a heat dissipation net 5 is fixedly installed at the upper end of the top cover 4, a first rotor 6 is movably installed at the lower end inside the motor body 1, a bearing 7 is fixedly installed at the upper end of the first rotor 6, a second stator 8 is fixedly installed at the upper end inside the motor body 1, a second rotor 9 is movably installed inside the second stator 8, a first driving shaft 11 is fixedly installed at the lower end of the second rotor 9, a permanent magnet 10 is fixedly installed at the outer end of the middle of the first driving shaft 11, a second driving shaft 12 is fixedly installed at the upper end of the second rotor 9, an anti-deviation wheel 13 is fixedly installed at the middle of the second driving shaft 12, and a first heat dissipation fan 14 is fixedly installed at the upper end of the second driving shaft 12, the lower end of the first driving shaft 11 is fixedly provided with a connecting shaft 15, the middle part of the connecting shaft 15 is fixedly provided with a second cooling fan 16, and the lower end inside the motor body 1 is fixedly provided with a first stator 17.
Further, the second rotor 9 and the first rotor 6 are in the same structure, the first stator 17 and the second stator 8 are in the same structure, firstly, the motor body 1 is powered on, the first stator 17 and the second stator 8 in the motor body 1 are powered on to generate a magnetic field, the permanent magnets 10 at the outer ends of the first rotor 6 and the second rotor 9 in the motor body generate a rotating torque to rotate under the action of magnetic force, the second rotor 9 rotates and simultaneously drives the first cooling fan 14 and the second cooling fan 16 to rotate in the same direction, the first cooling fan 14 and the second cooling fan 16 rotate and simultaneously drive airflow in the motor body 1 to blow to the outside of the motor body 1, so as to cool the inside of the motor body 1, and meanwhile, the first rotor 6 and the connecting shaft 15 are connected through the bearing 7, so that the first rotor 6 and the second rotor 9 rotate coaxially without interference, when the first rotor 6 idles, the first rotor 6 and the second rotor 9 keep the same rotating torque, and when the first rotor 6 is stressed and loaded, the second rotor 9 keeps the original rotating speed to rotate, and continuously drives the first cooling fan 14 and the second cooling fan 16 to dissipate heat.
Further, the outer end of the permanent magnet 10 in the middle of the first driving shaft 11 is fixed in a surrounding mode, the first cooling fan 14 is located inside the top cover 4, and when the second stator 8 is electrified to generate a magnetic field, the permanent magnet 10 drives the first driving shaft 11 to rotate under the action of magnetic force.
Further, the lower end of the connecting shaft 15 is fixedly connected with the bearing 7, the second heat dissipation fan 16 is located inside the heat dissipation grid 3, and the connecting shaft 15 and the first rotor 6 can rotate coaxially at different speeds by installing the bearing 7.
Further, the second heat dissipation fan 16 and the first heat dissipation fan 14 have the same structure, the first rotor 6 and the second rotor 9 rotate coaxially, and the second heat dissipation fan 16 is installed to dissipate heat of the first rotor 6 and the first stator 17 in the middle of the motor body 1.
Further, connecting axle 15 passes through bearing 7 and first rotor 6 swing joint, is the connectivity between heat dissipation graticule mesh 3 and the radiator-grid 5, through heat dissipation graticule mesh 3 and radiator-grid 5 intercommunication for when the heat dissipation, inside hot gas flow can have reached rapid cooling's effect in the inside rapid flow of motor body 1.
When the motor is used, firstly, the motor body 1 is powered on, the first stator 17 and the second stator 8 in the motor body 1 are electrified to generate a magnetic field, the first rotor 6 and the permanent magnet 10 at the outer end of the second rotor 9 in the motor body 1 generate a rotating torque to rotate under the action of magnetic force, the second rotor 9 rotates and simultaneously drives the first cooling fan 14 and the second cooling fan 16 to rotate in the same direction, the first cooling fan 14 and the second cooling fan 16 rotate and simultaneously drive airflow in the motor body 1 to blow to the outside of the motor body 1 to cool the inside of the motor body 1, meanwhile, the first rotor 6 is connected with the connecting shaft 15 through the bearing 7, so that the first rotor 6 and the second rotor 9 rotate coaxially without mutual interference, when the first rotor 6 idles, the first rotor 6 and the second rotor 9 keep the same rotating torque, when the first rotor 6 is stressed, the second rotor 9 keeps rotating at the original rotation speed, and continuously drives the first heat dissipation fan 14 and the second heat dissipation fan 16 to dissipate heat.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a constant rotational speed heat dissipation motor for electric tool, includes motor body (1), its characterized in that: the motor comprises a motor body (1), a transmission end fixedly connected with transmission shaft (2) and a heat dissipation grid (3) fixedly arranged in the middle of the motor body (1), a top cover (4) fixedly arranged in the upper end of the motor body (1), a heat dissipation net (5) fixedly arranged in the upper end of the top cover (4), a first rotor (6) movably arranged in the lower end of the motor body (1), a bearing (7) fixedly arranged in the upper end of the first rotor (6), a second stator (8) fixedly arranged in the upper end of the motor body (1), a second rotor (9) movably arranged in the second stator (8), a first driving shaft (11) fixedly arranged in the lower end of the second rotor (9), a permanent magnet (10) fixedly arranged in the outer end of the middle of the first driving shaft (11), and a second driving shaft (12) fixedly arranged in the upper end of the second rotor (9), the middle part fixed mounting of drive shaft two (12) has anti-deviation wheel (13), the upper end fixed mounting of drive shaft two (12) has first radiator fan (14), the lower extreme fixed mounting of drive shaft one (11) has connecting axle (15), the middle part fixed mounting of connecting axle (15) has second radiator fan (16), the inside lower extreme fixed mounting of motor body (1) has first stator (17).
2. The constant-speed heat dissipation motor for the power tool according to claim 1, wherein: the second rotor (9) and the first rotor (6) are of the same structure, and the first stator (17) and the second stator (8) are of the same structure.
3. The constant-speed heat dissipation motor for the power tool according to claim 1, wherein: the permanent magnet (10) is fixed at the outer end of the middle part of the first driving shaft (11) in a surrounding mode, and the first heat dissipation fan (14) is located inside the top cover (4).
4. The constant-speed heat dissipation motor for the power tool according to claim 1, wherein: the lower end of the connecting shaft (15) is fixedly connected with the bearing (7), and the second heat dissipation fan (16) is located inside the heat dissipation grid (3).
5. The constant-speed heat dissipation motor for the power tool according to claim 1, wherein: the second heat radiation fan (16) and the first heat radiation fan (14) are in the same structure, and the first rotor (6) and the second rotor (9) rotate in the same axial direction.
6. The constant-speed heat dissipation motor for the power tool according to claim 1, wherein: connecting axle (15) pass through bearing (7) and first rotor (6) swing joint, be the connectivity between heat dissipation graticule mesh (3) and heat dissipation net (5).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121743138.2U CN215419958U (en) | 2021-07-29 | 2021-07-29 | Constant-rotating-speed heat dissipation motor for electric tool |
| PCT/CN2021/110223 WO2023004840A1 (en) | 2021-07-29 | 2021-08-03 | Constant-rotational speed heat dissipation motor for electric tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121743138.2U CN215419958U (en) | 2021-07-29 | 2021-07-29 | Constant-rotating-speed heat dissipation motor for electric tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215419958U true CN215419958U (en) | 2022-01-04 |
Family
ID=79654014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121743138.2U Expired - Fee Related CN215419958U (en) | 2021-07-29 | 2021-07-29 | Constant-rotating-speed heat dissipation motor for electric tool |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN215419958U (en) |
| WO (1) | WO2023004840A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116937891B (en) * | 2023-07-28 | 2024-06-11 | 永州市顺合智能科技有限公司 | Brushless motor |
| CN118149082B (en) * | 2024-05-11 | 2024-08-30 | 常州亨博电气设备制造有限公司 | Crane automatic gearbox based on rapid heat dissipation |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI119458B (en) * | 2006-09-07 | 2008-11-14 | Abb Oy | Arrangements for cooling an electric machine |
| CN107046347B (en) * | 2017-03-06 | 2019-04-19 | 宁波诺丁汉大学 | Motor with heat sink |
| CN206894461U (en) * | 2017-03-26 | 2018-01-16 | 广州微型电机厂有限公司 | A New Safe and Reliable Asynchronous Motor Equipment |
| CN109995187B (en) * | 2019-04-16 | 2020-05-12 | 潍坊科技学院 | Motor of numerical control steel bar hoop bending machine |
| CN210958048U (en) * | 2019-12-26 | 2020-07-07 | 江西迈得机电配件有限公司 | Brushless motor's radiator unit |
-
2021
- 2021-07-29 CN CN202121743138.2U patent/CN215419958U/en not_active Expired - Fee Related
- 2021-08-03 WO PCT/CN2021/110223 patent/WO2023004840A1/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023004840A1 (en) | 2023-02-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220104 |