CN201018380Y - Stator winding of brushless DC motor - Google Patents
Stator winding of brushless DC motor Download PDFInfo
- Publication number
- CN201018380Y CN201018380Y CNU2007200311326U CN200720031132U CN201018380Y CN 201018380 Y CN201018380 Y CN 201018380Y CN U2007200311326 U CNU2007200311326 U CN U2007200311326U CN 200720031132 U CN200720031132 U CN 200720031132U CN 201018380 Y CN201018380 Y CN 201018380Y
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- CN
- China
- Prior art keywords
- motor
- winding
- brushless
- stator core
- utility
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Insulation, Fastening Of Motor, Generator Windings (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model relates to a brushless DC motor stator winding which comprises a stator core; wherein the two ends of the winding of the stator core 1 are respectively provided with the heat conducting encapsulating materials. The two ends of the winding of the stator core provided in the utility model are provided with a 55298 adhesion-type organic silicon heat conducting adhesive which has the high heat conducting rate, the high dielectric strength, the wide temperature, the wide application range, the good adhesive ability and the softness and no cracking as well as the waterproof, dampproof and ageing-proof functions. The two ends of the winding are encapsulated by the kind of materials, which greatly increases the current density of the motor in order to increase the power of the motor.
Description
Technical field
The utility model relates to stator winding in a kind of motor, is specifically related to a kind of brushless DC motor stator winding.
Background technology
The winding of present brushless DC motor all is embedded in the stator core, and stator end is unsettled in air by shaping, solidifies by dipping lacquer, and winding is fixed.Under certain volume and speed conditions, along with the increase of power, the copper loss of stator winding also increases thereupon, because the restriction of the temperature grade of the radiating condition of winding and motor when the temperature of winding rises to the motor allowable temperature limit, is exactly the maximum power of motor.Because usually stator core is made by silicon steel sheet, and winding is evenly distributed in the stator slot, and radiating condition is better relatively, and winding overhang is because a large amount of winding solid matters, and do not have good radiating condition, and therefore, winding overhang is generally the highest zone of temperature.For to winding overhang heat radiation, in large-size machine, leave air channel or oil circuit usually, because of complex structure and occupy a large amount of volumes, so in electrical micro-machine, can't adopt.Existing common small-sized DC brushless motor stator winding end just conducts heat by air, but at the bottom of the thermal conductivity utmost point of air, has only 0.026W/ (mK), and therefore the power at motor is restricted.
Summary of the invention
The purpose of this utility model is to overcome the shortcoming of above-mentioned prior art, provides a kind of not only simple in structure, and can increase the current density of motor, thereby increases the brushless DC motor stator winding of power of motor.
For achieving the above object, the technical solution adopted in the utility model is: comprise stator core, be characterized in, be respectively arranged with the heat conduction Embedding Material at the winding two ends of stator core.
The outside of heat conduction Embedding Material of the present utility model also is provided with heat conduction ring; The heat conduction Embedding Material is 55298 adhesion type organosilicon heat-conducting glues.
Since the utility model be provided with at the two ends of stator core winding high thermal conductivity, high dielectric strength, wide temperature application range wide, good adhesive ability, the soft 55298 adhesion type organosilicon heat-conducting glues that do not ftracture and waterproof, protection against the tide, anti-aging function are arranged are arranged.Use this kind material that embedding is carried out at the winding both ends, increased the current density of motor greatly, thereby increase the power of motor.
Description of drawings
Fig. 1 is an overall structure schematic diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing structural principle of the present utility model and operation principle are described in further detail.
Referring to Fig. 1, the utility model comprises stator core 1, is respectively arranged with 55298 adhesion type organosilicon heat conduction casting glues 3 at the winding two ends of stator core 1, and also is provided with heat conduction ring 2 in the outside of heat conduction casting glue 3.Thermal conductivity 〉=the 0.8W/ (mK) of machine silicon heat conduction casting glue 3, dielectric strength 〉=20 (kv/mm), volume resistivity 〉=1.0 * 10
8(Ω cm), serviceability temperature scope-60 ℃～+ 250 ℃ have that solidification process does not shrink, waterproof, protection against the tide, a performance characteristics such as anti-aging.This material is used on brushless DC motor, on the basis of primary structure that does not change motor and parameter, can be increased to more than 1.2 times of original motor power, especially uses having on the brushless DC motor that forces cooling condition, and effect is more obvious.
The utility model uses machine silicon heat conduction casting glue 3 that winding overhang is carried out embedding, and with the shape of heat conduction ring 2 control Embedding Materials, can increase the current density of motor greatly, thus the power of increase motor.
The utility model not only can be used for brushless DC motor, can also be applied in all kinds of motor of all windings on stator, be specially adapted to require power density bigger, volume is restricted, can't install in the middle-size and small-size motor of complicated cooling system, the motor power (output) of identical or close structure and size is obviously promoted.
Claims (3)
1. a brushless DC motor stator winding comprises stator core (1), it is characterized in that: be respectively arranged with heat conduction Embedding Material (3) at the winding two ends of stator core (1).
2. brushless DC motor stator winding according to claim 1 is characterized in that: the outside of said heat conduction Embedding Material (3) also is provided with heat conduction ring (2).
3. brushless DC motor stator winding according to claim 1 is characterized in that: said heat conduction Embedding Material (3) is 55298 adhesion type organosilicon heat-conducting glues.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200311326U CN201018380Y (en) | 2007-01-30 | 2007-01-30 | Stator winding of brushless DC motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200311326U CN201018380Y (en) | 2007-01-30 | 2007-01-30 | Stator winding of brushless DC motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201018380Y true CN201018380Y (en) | 2008-02-06 |
Family
ID=39058880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200311326U Expired - Fee Related CN201018380Y (en) | 2007-01-30 | 2007-01-30 | Stator winding of brushless DC motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201018380Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102005833A (en) * | 2009-07-29 | 2011-04-06 | 六逸科技股份有限公司 | Motor with internal thermal conductive adhesive |
-
2007
- 2007-01-30 CN CNU2007200311326U patent/CN201018380Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102005833A (en) * | 2009-07-29 | 2011-04-06 | 六逸科技股份有限公司 | Motor with internal thermal conductive adhesive |
| TWI401864B (en) * | 2009-07-29 | 2013-07-11 | Joy Ride Tech Co Ltd | A motor with internal thermal glue |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080206 Termination date: 20140130 |