CN208548786U - A kind of air-cooled type permanent-magnet brushless DC electric machine - Google Patents
A kind of air-cooled type permanent-magnet brushless DC electric machine Download PDFInfo
- Publication number
- CN208548786U CN208548786U CN201820805360.2U CN201820805360U CN208548786U CN 208548786 U CN208548786 U CN 208548786U CN 201820805360 U CN201820805360 U CN 201820805360U CN 208548786 U CN208548786 U CN 208548786U
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- China
- Prior art keywords
- shell
- stator
- air
- main shaft
- rotor
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Abstract
The utility model discloses a kind of air-cooled type permanent-magnet brushless DC electric machines, it include: shell, several through-holes are provided on the shell, the middle position of the shell is provided with main shaft, and rotor made of permanent magnet is cased on the main shaft, is provided with stator on the outside of the rotor, the stator is fixed on shell, the stator is close to shell, and shell is stretched out in the front end of the shaft, and the rear end of the shaft is provided with fan.Through-hole is evenly equipped on motor housing, the air-flow that fan generates passes through the gap of stator and rotor, subsequently passes through the winding of rotor, finally by being discharged in the through-hole on shell, air-flow is allow to pass through stator winding, radiated more thorough, and more uniform, the good heat dissipation effect that radiates.Motor housing is provided with stiffening plate, improves the intensity of shell.
Description
Technical field
The utility model relates to a kind of air-cooled type permanent-magnet brushless DC electric machines, belong to mechanical manufacturing field.
Background technique
Today's society, from the various automobiles of different voltages to special power equipment, to the dependence of electronic control system
Increasing.Meanwhile the long-life, high efficiency is highly reliable, and low EMI and noise these parameters become particularly important.Nothing
Brushless motor is able to satisfy above-mentioned requirements, moreover, the problem related to brush is also eliminated, so that brshless DC motor obtains
It promotes.Brushless, permanently excited direct current motor is the dc motor that magnetic field is established by one or more permanent magnet, characteristic with it is constant
The DC motor with separate excitation of exciting current is similar, can easily be adjusted the speed by change armature voltage, has small in size, efficiency
The advantages that height, structure are simple, copper consumption is few, is the main Types of low powered DC motor, is widely used in various portable
Electronic equipment or utensil in, be also widely used in the industries such as automobile, ship, aviation, machinery, but brushless, permanently excited direct current motor
A large amount of heat can be generated during the work time, seriously reduces the service life of motor, and motor is made to be easy to happen failure, it is unfavorable
In the use of people.
Summary of the invention
The utility model in order to solve the problems, such as it is above-mentioned exist in the prior art, a kind of air-cooled type permanent magnet brushless dc is provided
Machine, to solve the difficult technical problem of present permanent-magnet brushless DC electric machine heat dissipation.
The technical scheme adopted by the utility model to solve the technical problem is as follows:
The utility model provides a kind of air-cooled type permanent-magnet brushless DC electric machine, comprising: shell is provided on the shell
Several through-holes, the middle position of the shell are provided with main shaft, and rotor made of permanent magnet, the rotor are cased on the main shaft
Outside is provided with stator, and the stator is fixed on shell, and the stator is close to shell, and shell is stretched out in the front end of the main shaft,
The rear end of the main shaft is provided with fan.
Preferably, the shell is horizontal positioned cylindrical housings, and the shell includes: cylindrical side, upper bottom
Face and bottom surface, the upper bottom surface centre pass through main shaft, are evenly equipped with through-hole on the bottom surface and side.Gas by stator with
The gap of rotor then passes through the winding of stator by being discharged in the through-hole on shell, takes away the heat of stator generation.
Preferably, be provided on the side of the shell with main-shaft axis parallel reinforcing plates, improve the intensity of shell.
Preferably, the stator includes several windings, and the rotor includes several magnetic poles.
Preferably, the main shaft is connected on shell by bearing, energy saving for reducing frictional force.
Preferably, it is provided with pedestal below the shell, is used to support motor.
The beneficial effects of the utility model are: being evenly equipped with through-hole on motor housing, the air-flow that fan generates first passes through stator
, finally by being discharged in the through-hole on shell, air-flow is allow to pass through stator then by the winding of rotor with the gap of rotor
Winding radiates more thorough, and more uniform, the good heat dissipation effect that radiates.Motor housing is provided with stiffening plate, improves the strong of shell
Degree.
Detailed description of the invention
The above-mentioned aspect and advantage of the utility model will be apparent from the description of the embodiment in conjunction with the following figures
Be readily appreciated that, in which:
Fig. 1 is the cross-sectional view of the air-cooled type permanent-magnet brushless DC electric machine of the utility model embodiment；
Fig. 2 is the structural schematic diagram of the air-cooled type permanent-magnet brushless DC electric machine of the utility model embodiment.
Description of symbols:
In Fig. 1-Fig. 2, shell 1；Stiffening plate 2；Through-hole 3；Stator 4；Fan 5；Rotor 6；Pedestal 7；Bearing 8；Main shaft 9.
Specific embodiment
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for the attached drawing description examined is exemplary, and is only used for explaining the utility model, and should not be understood as to the utility model
Limitation.It further illustrates with reference to the accompanying drawing.
The utility model provides a kind of air-cooled type permanent-magnet brushless DC electric machine, comprising: shell 1, if being provided on shell 1
Dry through-hole 3, the middle position of shell 1 are provided with main shaft 9, and rotor 6 made of permanent magnet are cased on main shaft 9, are arranged on the outside of rotor 6
There is stator 4, stator 4 is fixed on shell 1, and stator 4 is close to shell 1, and shell 1 is stretched out in the front end of main shaft 9, and the rear end of main shaft 9 is set
It is equipped with fan 5.
Shell 1 is horizontal positioned cylindrical housings, and shell 1 includes: cylindrical side, upper bottom surface and bottom surface, on
Main shaft 9 is passed through among bottom surface, is evenly equipped with through-hole 3 on bottom surface and side.
Stator 4 can permit air-flow and pass through made of being wound copper wire between copper wire, due to stator 4 be close to shell 1,
So air-flow can be from stator 4 and rotor 6 after fan 5 enters motor from the air-flow sucked in the through-hole 3 on the bottom surface of shell 1
Between gap by stator 4, be discharged in the most through-hole 3 afterwards through 1 side of shell, in this way, air-flow is made to flow through stator 4, Ke Yigeng
Add the heat for adequately taking the generation of 4 winding of stator out of, radiates more complete, it will not be as present radiating mode, only from fixed
Sub 4 surfaces pass through, the heat inside the stator 4 that cannot shed.
Being provided on the side of shell 1 has with 9 axis parallel reinforcing plates 2 of main shaft in the case where 1 intensity of shell is constant
Stiffening plate 2 can reduce the thickness of shell 1, be more advantageous to heat dissipation, and save material.
Stator 4 includes 8 teeth, and the rotor 6 includes 12 magnetic poles, and every phase winding crosses over 4 teeth, and the winding uses
90 degree of electrical angle drivings.
Main shaft 9 is connected on shell 1 by bearing 8, and bearing 8 has two altogether, the upper bottom surface of shell 1 each one, is used for
Reduce frictional force, it is energy saving.
The lower section of shell 1 is provided with pedestal 7, and pedestal 7 is a rectangular iron plate, is used to support motor.
While there has been shown and described that the embodiments of the present invention, it will be understood by those skilled in the art that:
These embodiments can be carried out with a variety of variations, modification, replacement in the case where not departing from the principles of the present invention and objective
And modification, the scope of the utility model are defined by the claims and their equivalents.
Claims (6)
1. a kind of air-cooled type permanent-magnet brushless DC electric machine, comprising: shell (1), which is characterized in that be provided on the shell (1)
The middle position of several through-holes (3), the shell (1) is provided with main shaft (9), is cased with made of permanent magnet on the main shaft (9)
Rotor (6) is provided with stator (4) on the outside of the rotor (6), and the stator (4) is fixed on shell (1), the stator (4) with
There are gap between shell (1), shell (1) is stretched out in the front end of the main shaft (9), and the rear end of the main shaft (9) is provided with fan
(5)。
2. air-cooled type permanent-magnet brushless DC electric machine according to claim 1, which is characterized in that the shell (1) is level
The cylindrical housings of placement, the shell (1) include: cylindrical side, upper bottom surface and bottom surface, are worn among the upper bottom surface
It crosses main shaft (9), through-hole (3) is evenly equipped on the bottom surface and side.
3. air-cooled type permanent-magnet brushless DC electric machine according to claim 2, which is characterized in that the side of the shell (1)
On be provided with the stiffening plate parallel with main shaft (9) axis (2).
4. air-cooled type permanent-magnet brushless DC electric machine according to claim 1, which is characterized in that the stator (4) is if include
Dry winding, the rotor (6) includes several magnetic poles.
5. air-cooled type permanent-magnet brushless DC electric machine according to claim 1, which is characterized in that the main shaft (9) passes through axis
(8) are held to be connected on shell (1).
6. air-cooled type permanent-magnet brushless DC electric machine according to claim 1, which is characterized in that the lower section of the shell (1)
It is provided with pedestal (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820805360.2U CN208548786U (en) | 2018-05-29 | 2018-05-29 | A kind of air-cooled type permanent-magnet brushless DC electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820805360.2U CN208548786U (en) | 2018-05-29 | 2018-05-29 | A kind of air-cooled type permanent-magnet brushless DC electric machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208548786U true CN208548786U (en) | 2019-02-26 |
Family
ID=65420455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820805360.2U Expired - Fee Related CN208548786U (en) | 2018-05-29 | 2018-05-29 | A kind of air-cooled type permanent-magnet brushless DC electric machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208548786U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110690782A (en) * | 2019-11-04 | 2020-01-14 | 安阳工学院 | Vibration-damping air-cooling woodworking electric spindle |
-
2018
- 2018-05-29 CN CN201820805360.2U patent/CN208548786U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110690782A (en) * | 2019-11-04 | 2020-01-14 | 安阳工学院 | Vibration-damping air-cooling woodworking electric spindle |
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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: 20190226 Termination date: 20200529 |