CN103078448A - Motor with good heat radiation performance - Google Patents
Motor with good heat radiation performance Download PDFInfo
- Publication number
- CN103078448A CN103078448A CN2012105954981A CN201210595498A CN103078448A CN 103078448 A CN103078448 A CN 103078448A CN 2012105954981 A CN2012105954981 A CN 2012105954981A CN 201210595498 A CN201210595498 A CN 201210595498A CN 103078448 A CN103078448 A CN 103078448A
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- motor
- transmission shaft
- electric machine
- machine casing
- perfect heat
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Abstract
The invention discloses a motor with good heat radiation performance. The motor comprises a motor casing and a transmission shaft arranged inside the motor casing, wherein a bearing is arranged at the connecting part of the transmission shaft and the motor casing, the periphery of the transmission shaft is sequentially provided with a permanent magnet, a rotor iron core and a stator iron core, two ends of the stator iron core are also provided with stator windings, and a cooling pipeline is arranged in the motor casing. Cooling liquid is added, the heat generated by the motor during the work is reduced, the influence on insulation materials with poor heat resistance capability because of overhigh temperature is avoided, the service life of the motor is greatly prolonged, the maintenance of the motor is enhanced, the structure is simple, and the use is convenient.
Description
Technical field
The present invention relates to a kind of motor, particularly a kind of motor of perfect heat-dissipating.
Background technology
Motor in running (being in the energy transfer process) some produced loss, the part of loss all is converted into heat, causes the heating of motor, and the temperature of motor is raise.When motor moved under normal condition, the rising of temperature was can not surpass temperature limit, only nonserviceable or motor be under the various external electric fault hidden danger states just can be overheated.Excess Temperature at first affects the insulating material of temperature capacity weakness, has greatly shortened its life-span, when serious even may be with burn-down of electric motor.Therefore, break off relations the reason that the motor feels hot, it is strengthened safeguarding, just various hidden danger and accident can be disappeared in bud.The situation that can occur in the following situation that the motor feels hot:
(1) motor does not have technical conditions operation in accordance with regulations, and too high such as stator voltage, iron loss increases; Load current is excessive, and the stator winding copper loss increases; Underfrequency makes cooling fan rotation speed slack-off, affects motor radiating; Power factor is too low, and rotor excitation current is increased, and causes rotor heating.
(2) the three-phase load current imbalance of motor, a phase winding of overload can be overheated; If the difference of three-phase current surpasses 10% of rated current, it is uneven namely to belong to serious mqb phase current, and three-phase current unbalance can produce negative sequence field, thereby increases loss, causes the parts heatings such as magnetic pole winding and cuff.
(3) air channel is stopped up by laying dust, and improper ventilation causes the motor radiating difficulty.
(4) bearing is grease-added too much or very few, can cause motor overheating.
(5) bearing wear.Not serious if wear and tear, make the bearing local overheating; If serious wear might make stator and friction rotor, it is overheated to cause stator and rotor to keep away section.
(6) stator core insulation damages, and causes short circuit between sheet, causes the eddy current loss of iron core part to increase and generates heat.
(7) parallel conducting wire of stator winding fracture increases the electric current of other wires and generates heat.
Summary of the invention
It is better that the technical problem to be solved in the present invention provides a kind of thermal diffusivity, simple in structure, motor easy to use.
For addressing the above problem, the present invention adopts following technical scheme: a kind of motor of perfect heat-dissipating, comprise electric machine casing, and be arranged on the power transmission shaft of electric machine casing inside, the junction of described power transmission shaft and electric machine casing is provided with bearing, described power transmission shaft periphery is disposed with permanent magnet, rotor core and stator core, and described stator core two ends also are provided with stator winding, are provided with cooling line in the described electric machine casing.
As preferably, described power transmission shaft periphery also is provided with bearing holder (housing, cover), and described bearing holder (housing, cover) offers more than one lubrication groove.
As preferably, offer cooling liquid inlet and cooling liquid outlet on the described electric machine casing.
As preferably, described stator core periphery also is provided with insulating barrier.
As preferably, described stator core offers stator slot, and rotor core offers rotor, and described stator slot and rotor cooperatively interact.
As preferably, described stator winding is distributed stator winding
The invention has the beneficial effects as follows: be provided with cooling line in the electric machine casing, by adding cooling fluid, the heat that motor produces during reduction work, avoid excess Temperature to affect the insulating material of temperature capacity weakness, greatly increased the life-span of motor, reinforcement is to the maintenance of motor, and is simple in structure, easy to use.
Description of drawings
Fig. 1 is the structural representation of the motor of perfect heat-dissipating of the present invention;
Fig. 2 is the cutaway view of the motor of perfect heat-dissipating of the present invention;
Fig. 3 is the structural representation of the motor rotor core of perfect heat-dissipating of the present invention.
Embodiment
Consult Fig. 1 to the motor of a kind of perfect heat-dissipating shown in Figure 3, comprise electric machine casing 1, and be arranged on the power transmission shaft 3 of electric machine casing 1 inside, described power transmission shaft 3 is provided with bearing 2 with the junction of electric machine casing 1, described power transmission shaft 3 peripheries are disposed with permanent magnet 8, rotor core 7 and stator core 5, described stator core 5 two ends also are provided with stator winding 6, are provided with cooling line 4 in the described electric machine casing 1.
Wherein, described power transmission shaft 3 peripheries also are provided with bearing holder (housing, cover) 11, and described bearing holder (housing, cover) 11 offers more than one lubrication groove.
Offer cooling liquid inlet 9 and cooling liquid outlet 10 on the described electric machine casing 1.
Described stator core 5 peripheries also are provided with insulating barrier.
Described stator core 5 offers stator slot, and rotor core 7 offers rotor, and described stator slot and rotor cooperatively interact.
As preferably, described stator winding 6 is distributed stator winding
The invention has the beneficial effects as follows: be provided with cooling line in the electric machine casing, by adding cooling fluid, the heat that motor produces during reduction work, avoid excess Temperature to affect the insulating material of temperature capacity weakness, greatly increased the life-span of motor, reinforcement is to the maintenance of motor, and is simple in structure, easy to use.
Above-described embodiment, just an example of the present invention is not to limit enforcement of the present invention and interest field, and the identical or technical scheme that is equal to of the described content of claim all and of the present invention all should be included in the protection range of the present invention.
Claims (6)
1. the motor of a perfect heat-dissipating, comprise electric machine casing, and be arranged on the power transmission shaft of electric machine casing inside, it is characterized in that: the junction of described power transmission shaft and electric machine casing is provided with bearing, described power transmission shaft periphery is disposed with permanent magnet, rotor core and stator core, described stator core two ends also are provided with stator winding, are provided with cooling line in the described electric machine casing.
2. the motor of perfect heat-dissipating according to claim 1, it is characterized in that: described power transmission shaft periphery also is provided with bearing holder (housing, cover), and described bearing holder (housing, cover) offers more than one lubrication groove.
3. the motor of perfect heat-dissipating according to claim 1 is characterized in that: offer cooling liquid inlet and cooling liquid outlet on the described electric machine casing.
4. the motor of perfect heat-dissipating according to claim 1, it is characterized in that: described stator core periphery also is provided with insulating barrier.
5. the motor of perfect heat-dissipating according to claim 1, it is characterized in that: described stator core offers stator slot, and rotor core offers rotor, and described stator slot and rotor cooperatively interact.
6. the motor of perfect heat-dissipating according to claim 1, it is characterized in that: described stator winding is distributed stator winding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105954981A CN103078448A (en) | 2012-12-10 | 2012-12-10 | Motor with good heat radiation performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105954981A CN103078448A (en) | 2012-12-10 | 2012-12-10 | Motor with good heat radiation performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103078448A true CN103078448A (en) | 2013-05-01 |
Family
ID=48154887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105954981A Pending CN103078448A (en) | 2012-12-10 | 2012-12-10 | Motor with good heat radiation performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103078448A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106911225A (en) * | 2016-08-30 | 2017-06-30 | 合肥新沪屏蔽泵有限公司 | One kind shielding pump motor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1053131A (en) * | 1996-08-08 | 1998-02-24 | Railway Technical Res Inst | Wheel integral type electric motor |
| CN1656662A (en) * | 2002-05-28 | 2005-08-17 | 美国艾默生电气公司 | Cooling jacket for electric machines |
| CN1937365A (en) * | 2006-10-17 | 2007-03-28 | 中国南车集团株洲电力机车研究所 | Water cooling method and structure for traction electric machine |
-
2012
- 2012-12-10 CN CN2012105954981A patent/CN103078448A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1053131A (en) * | 1996-08-08 | 1998-02-24 | Railway Technical Res Inst | Wheel integral type electric motor |
| CN1656662A (en) * | 2002-05-28 | 2005-08-17 | 美国艾默生电气公司 | Cooling jacket for electric machines |
| CN1937365A (en) * | 2006-10-17 | 2007-03-28 | 中国南车集团株洲电力机车研究所 | Water cooling method and structure for traction electric machine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106911225A (en) * | 2016-08-30 | 2017-06-30 | 合肥新沪屏蔽泵有限公司 | One kind shielding pump motor |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130501 |