CN108347109A - A kind of motor rotor and threephase asynchronous - Google Patents
A kind of motor rotor and threephase asynchronous Download PDFInfo
- Publication number
- CN108347109A CN108347109A CN201810338969.8A CN201810338969A CN108347109A CN 108347109 A CN108347109 A CN 108347109A CN 201810338969 A CN201810338969 A CN 201810338969A CN 108347109 A CN108347109 A CN 108347109A
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- China
- Prior art keywords
- conducting bar
- rotor
- hole
- bar hole
- interior
- 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.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K17/00—Asynchronous induction motors; Asynchronous induction generators
- H02K17/02—Asynchronous induction motors
- H02K17/12—Asynchronous induction motors for multi-phase current
-
- 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
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/161—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields radially supporting the rotary shaft at both ends of the rotor
-
- 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)
- Induction Machinery (AREA)
Abstract
The invention discloses a kind of motor rotor, the rotor includes iron core and end ring, and the iron core is overrided to form by several rotor punchings；The center of the rotor punching is equipped with axis hole, and also outer conducting bar hole and interior conducting bar hole are configured with using axis hole center as center of circle circumference uniform distribution on the outside of axis hole, and the outer conducting bar hole superposition in each punching is linked to be outer conducting bar slot, and the interior conducting bar hole superposition in each punching is linked to be interior conducting bar slot；The outer conducting bar slot internal pressure is cast with the outer conducting bar of copper, and interior conducting bar slot internal pressure is cast with conducting bar in copper；The end ring is set to the both ends of iron core.On the other hand, the present invention also provides a kind of threephase asynchronouses.Motor rotor and threephase asynchronous provided by the invention, operational efficiency is high, and anti-overload ability is strong, with small vibration, low noise, and temperature rises low, locked-rotor torque height.
Description
Technical field
The present invention relates to motor field, especially a kind of motor rotor and threephase asynchronous.
Background technology
Currently, threephase asynchronous use scope amount is big and wide, it is one of most important energy consumption product in energy field.
Replace the fundamental state policy that high-efficiency electric motor is country, and an urgent demand of current Environmental Protection Situation.
Existing high-efficiency asynchronous electric motor generally uses cast-aluminum rotor, since the resistivity of aluminium is higher, existing electricity
Machine loss is higher.Simultaneously because the limitation of material itself, in the small-sized electric to Ultra-High Efficiency and super Ultra-High Efficiency level requirement
Machine, using aluminum conducting bar then it is difficult to ensure that the level of efficiency of motor reaches corresponding index.And aluminum strip is under severe load
It is also easy to produce broken strip phenomenon, influences normal operation and the use of motor.Therefore it in the occasion more demanding to motor reliability, uses
The risk that cast-aluminum rotor motor undertakes is relatively high.
Because in consideration of it, special propose the invention.
Invention content
The object of the present invention is to provide a kind of efficient, the motor rotors and threephase asynchronous of good reliability.
To achieve the goals above, a kind of motor rotor provided by the invention, the rotor include iron core and end ring, institute
Iron core is stated to be overrided to form by several rotor punchings；
The center of the rotor punching is equipped with axis hole, axis hole outside also being configured with using axis hole center as center of circle circumference uniform distribution
Outer conducting bar hole and interior conducting bar hole, the outer conducting bar hole superposition in each punching are linked to be outer conducting bar slot, the interior conducting bar hole superposition in each punching
It is linked to be interior conducting bar slot；
The outer conducting bar slot internal pressure is cast with the outer conducting bar of copper, and interior conducting bar slot internal pressure is cast with conducting bar in copper；
The end ring is set to the both ends of iron core.
Preferably, the rotor punching outer is uniformly configured with several cramp slots.
Preferably, the outer conducting bar hole is connected with adjacent interior conducting bar hole by a sector.
Preferably, the outer conducting bar hole is round rectangle.
Preferably, the outer conducting bar hole is circle.
Preferably, the interior conducting bar hole is pyriform.
On the other hand, the present invention also provides a kind of threephase asynchronous, the motor includes stator, shaft, engine base
With above-mentioned rotor, the shaft is installed in the axis hole of rotor, and is set along in engine base with stator；
The both ends of the engine base are equipped with end cap, and end cap is equipped with bearing, and the both ends of the rotor are mounted on end by bearing
It covers.
Preferably, one end of the shaft is equipped with a fan, and the fan is set to the outside of end cap,
Preferably, the outside of the fan is equipped with the fan guard of covering fan.
Motor rotor and threephase asynchronous provided by the invention, have the advantages that：
Operational efficiency is high, and anti-overload ability is strong, with small vibration, low noise, and temperature rises low, locked-rotor torque height.
Description of the drawings
Fig. 1 is the rotor punching structure schematic diagram of the motor rotor provided in the embodiment of the present invention one.
Fig. 2 is the rotor punching structure schematic diagram of the motor rotor provided in the embodiment of the present invention two.
Fig. 3 is the rotor punching structure schematic diagram of the motor rotor provided in the embodiment of the present invention three.
Fig. 4 is the electric motor structure schematic diagram provided in the embodiment of the present invention four.
In figure：
1. 14. sector, 2. engine base 3. stator 4. in conducting bar hole in 11. axis hole of rotor punching, 12. outer conducting bar hole 13.
9. fan of end ring 5. shaft, 6. bearing, 7. end cap, 8. iron core, 10. fan guard
Specific implementation mode
The present invention will be further described with reference to the accompanying drawings and detailed description.
Embodiment one
Referring to FIG. 1, the present invention provides a kind of motor rotors.
The rotor includes iron core 8 and end ring 4, and the iron core 8 is overrided to form by several rotor punchings 1.
In the present embodiment, rotor punching 1 uses silicon steel sheet material.
In the present embodiment, the outer of rotor punching 1 is uniformly configured with several cramp slot (not shown)s, is used for
Rotor punching 1 is set mutually to fasten in 1 lamination process of rotor punching, connection is even closer.
The center of rotor punching 1 is equipped with axis hole 11, so that shaft passes through.
Using 11 center of axis hole as the center of circle, enclosed in the uniformly distributed conducting bar hole 12 and one outside a circle that is configured with of the outer circumference of axis hole 11
Interior conducting bar hole 13.Outer conducting bar hole 12 is built in 13 outside of interior conducting bar hole.
In the present embodiment, the quantity phase of the quantity and interior conducting bar hole 13 in the outer conducting bar hole 12 on every a piece of rotor punching
Deng.And the axis in the outer conducting bar hole 12 of adjacent pair and interior conducting bar hole 13 is in using 11 center of axis hole as the same of the circle in the center of circle
On radius.It is noted that the quantity and arrangement in the external conducting bar hole 12 of the present embodiment and interior conducting bar hole 13 are not done
Specific to limit, those skilled in the art can calculate selection suitably outer conducting bar hole and interior conducting bar hole according to actual conditions and parameter
Arrangement.
As a preferred solution, in the present embodiment, outer conducting bar hole 12 be circle, interior conducting bar hole be pyriform 13 (such as
Shown in Fig. 1), it is noted that the shape in the external conducting bar hole 12 of the present invention and interior conducting bar hole 13 is not specifically limited, this
Field technology personnel can select suitable outer conducting bar hole shape and interior conducting bar hole shape according to actual needs.
Outer conducting bar hole 12 superposition in each rotor punching 1 is linked to be outer conducting bar slot, the interior conducting bar hole 13 in each rotor punching 11
Superposition is linked to be interior conducting bar slot.Die casting has an outer conducting bar of copper in outer conducting bar slot, in interior conducting bar slot die casting have conducting bar in copper.The outer conducting bar of copper and
Conducting bar forms a kind of " double mouse cages " structure in copper.
Kelvin effect is when having alternating current or alternating electromagnetic field in conductor, and the current distribution is uneven of conductor is even,
Current convergence is the thin layer of conductor appearance the phenomenon that.According to kelvin effect, when rotor has the structure of " double mouse cages ", containing should
The motor of rotor stall and detent torque bigger on startup, stall and starting current smaller.
The both ends of iron core 8 are equipped with end ring 4, and in the present embodiment, end ring 4 is copper end ring.
Embodiment two
Referring to FIG. 2, the present invention provides a kind of motor rotors.
The rotor includes iron core 8 and end ring 4, and the iron core 8 is overrided to form by several rotor punchings 1.
In the present embodiment, rotor punching 1 uses silicon steel sheet material.
In the present embodiment, the outer of rotor punching 1 is uniformly configured with several cramp slot (not shown)s, is used for
Rotor punching 1 is set mutually to fasten in 1 lamination process of rotor punching, connection is even closer.
The center of rotor punching 1 is equipped with axis hole 11, so that shaft passes through.
Using 11 center of axis hole as the center of circle, enclosed in the uniformly distributed conducting bar hole 12 and one outside a circle that is configured with of the outer circumference of axis hole 11
Interior conducting bar hole 13.Outer conducting bar hole 11 is built in 13 outside of interior conducting bar hole.
In the present embodiment, the quantity phase of the quantity and interior conducting bar hole 13 per the outer conducting bar hole 12 on a piece of rotor punching 11
Deng.And the axis in the outer conducting bar hole 12 of adjacent pair and interior conducting bar hole 13 is in using 11 center of axis hole as the same of the circle in the center of circle
On radius.And it is connected by sector 14 between adjacent outer conducting bar hole 12 and interior conducting bar hole 13.
As a preferred solution, in the present embodiment, outer conducting bar hole 12 be circle, interior conducting bar hole 13 be pyriform (such as
Shown in Fig. 2), it is noted that the shape in the external conducting bar hole 12 of the present invention and interior conducting bar hole 13 is not specifically limited, this
Field technology personnel can select suitable outer conducting bar hole shape and interior conducting bar hole shape according to actual needs.
Outer conducting bar hole 12 superposition in each rotor punching 11 is linked to be outer conducting bar slot, the interior conducting bar hole 13 in each rotor punching 11
Superposition is linked to be interior conducting bar slot.Die casting has an outer conducting bar of copper in outer conducting bar slot, in interior conducting bar slot die casting have conducting bar in copper.The outer conducting bar of copper and
Conducting bar forms a kind of " double mouse cages " structure in copper.
Kelvin effect is when having alternating current or alternating electromagnetic field in conductor, and the current distribution is uneven of conductor is even,
Current convergence is the thin layer of conductor appearance the phenomenon that.According to kelvin effect, when rotor has the structure of " double mouse cages ", containing should
The motor of rotor stall and detent torque bigger on startup, stall and starting current smaller.
The both ends of iron core 8 are equipped with end ring 4, and in the present embodiment, end ring 4 is copper end ring.
Embodiment three
Referring to FIG. 3, the present invention provides a kind of motor rotors.
The rotor includes iron core 8 and end ring 4, and the iron core 8 is overrided to form by several rotor punchings 1.
In the present embodiment, rotor punching 1 uses silicon steel sheet material.
In the present embodiment, the outer of rotor punching 1 is uniformly configured with several cramp slot (not shown)s, is used for
Rotor punching 1 is set mutually to fasten in 1 lamination process of rotor punching, connection is even closer.
The center of rotor punching 1 is equipped with axis hole 11, so that shaft passes through.
Using 11 center of axis hole as the center of circle, enclosed in the uniformly distributed conducting bar hole 12 and one outside a circle that is configured with of the outer circumference of axis hole 11
Interior conducting bar hole 13.Outer conducting bar hole 12 is built in 13 outside of interior conducting bar hole.
In the present embodiment, the quantity phase of the quantity and interior conducting bar hole 13 per the outer conducting bar hole 12 on a piece of rotor punching 1
Deng.And the axis in the outer conducting bar hole 12 of adjacent pair and interior conducting bar hole 13 is in using 11 center of axis hole as the same of the circle in the center of circle
On radius.And it is connected by sector 14 between adjacent outer conducting bar hole 12 and interior conducting bar hole 13.
As a preferred solution, in the present embodiment, outer conducting bar hole 12 is round rectangle, and interior conducting bar hole 13 is pyriform
(as shown in Figure 3), it is noted that the shape in the external conducting bar hole 2 of the present invention and interior conducting bar hole 13 is not specifically limited,
Those skilled in the art can select suitable outer 12 shape of conducting bar hole and interior 13 shape of conducting bar hole according to actual needs.
Outer conducting bar hole 12 superposition in each rotor punching 1 is linked to be outer conducting bar slot, and the interior conducting bar hole 13 in each rotor punching 1 is folded
Add and is linked to be interior conducting bar slot.Die casting has an outer conducting bar of copper in outer conducting bar slot 12, in interior conducting bar slot 13 die casting have conducting bar in copper.The outer conducting bar of copper
A kind of " double mouse cages " structure is formed with conducting bar in copper.
Kelvin effect is when having alternating current or alternating electromagnetic field in conductor, and the current distribution is uneven of conductor is even,
Current convergence is the thin layer of conductor appearance the phenomenon that.According to kelvin effect, when rotor has the structure of " double mouse cages ", containing should
The motor of rotor stall and detent torque bigger on startup, stall and starting current smaller.
The both ends of iron core 8 are equipped with end ring 4, and in the present embodiment, end ring 4 is copper end ring.
Example IV
Referring to FIG. 4, an embodiment of the present invention provides a kind of threephase asynchronouses.
The threephase asynchronous includes the rotor provided in stator 3, shaft 5, engine base 2 and embodiment one to three.
The shaft 5 is installed in the axis hole 11 of rotor, and is set along in engine base 2 with stator 3.
The both ends of the engine base 2 are equipped with end cap 7, and end cap 7 is equipped with bearing 6, and the both ends of the shaft 5 are pacified by bearing 6
On end cap 7.
In the present embodiment, bearing 6 can be born using deep groove ball bearing from compound load axially and radially
Lotus.
In one end of shaft 5, it is additionally provided with a fan 9 in the outside of end cap 7, for being dissipated to motor when motor is operated
Heat is cooling.
The outside of fan 9 is additionally provided with the fan guard 10 of a covering fan 9, and the fan guard 10 is connected with engine base 2, for pair
Fan 9 is protected.
Using the pole three phase asynchronous motor performance test result such as tables of 160 engine base 7.5kW6 of the design and manufacture in example IV
Shown in 1：
The pole three phase asynchronous motor performance test results of 1 160 engine base 7.5kW6 of table
Using the pole three phase asynchronous motor performance test results of the 160 engine base 11kW6 such as table 2 of the design and manufacture in example IV
It is shown：
The pole three phase asynchronous motor performance test results of 2 160 engine base 7.5kW6 of table
Using the model machine of the design and manufacture in example IV, the comparison with the cast-aluminum rotor model machine for reaching identical efficiency level
As shown in table 3：
3 same efficiency cast-aluminum rotor motor of table and copper casting rotor Main Materials for Electromotor scale
Using the model machine of the design and manufacture in example IV, the test result in terms of vibration and noise is as shown in table 4：
| Vibrate maximum value | Noise | |
| YE3 required values | 2.2mm/S | 73dB(A)+3dB(A) |
| Prototyping testing value | 0.6mm/S | 54.1dB(A) |
4 model machine of table vibrates and noise test result
Using the model machine of the design and manufacture in example IV, temperature is as shown in table 5 when work：
| Cast-aluminum rotor | Copper casting rotor | Difference | |
| 11kW motor | 64.9℃ | 59.5℃ | -4.5℃ |
| 18.5kW motor | 79.9℃ | 47.2℃ | -32.7℃ |
5 model machine operating temperature of table tests table
In conclusion using the motor rotor and threephase asynchronous that are provided in the present invention, can effectively reduce
The heat production of motor at work, extends the service life of product；Vibration and noise when work is greatly improved simultaneously, in energy
When imitating identical, the materials of main material are more saved, the volume of motor also smaller；It is more efficient in the case of constancy of volume, performance
More preferably, more conducively energy-saving；In addition, locked-rotor torque bigger on startup, locked rotor current smaller.
Specific case used herein elaborates inventive concept, the explanation of above example is only intended to
Help understands core of the invention thought.It should be pointed out that for those skilled in the art, not departing from this
Under the premise of inventive concept, any obvious modification, equivalent replacement or the other improvements made should be included in the present invention
Protection domain within.
Claims (9)
1. a kind of motor rotor, which is characterized in that the rotor includes iron core and end ring, and the iron core is by several rotor punchings
It is overrided to form；
The center of the rotor punching is equipped with axis hole, and also outer lead is configured with using axis hole center as center of circle circumference uniform distribution on the outside of axis hole
Hole and interior conducting bar hole, the outer conducting bar hole superposition in each punching are linked to be outer conducting bar slot, and the interior conducting bar hole superposition in each punching is linked to be
Interior conducting bar slot；
The outer conducting bar slot internal pressure is cast with the outer conducting bar of copper, and interior conducting bar slot internal pressure is cast with conducting bar in copper；
The end ring is set to the both ends of iron core.
2. motor rotor according to claim 1, which is characterized in that if the rotor punching outer is uniformly configured with
Dry cramp slot.
3. motor rotor according to claim 1, which is characterized in that the outer conducting bar hole is logical with adjacent interior conducting bar hole
A sector is crossed to be connected.
4. motor rotor according to claim 3, which is characterized in that the outer conducting bar hole is round rectangle.
5. motor rotor according to claim 3, which is characterized in that the outer conducting bar hole is circle.
6. motor rotor according to claim 3, which is characterized in that the interior conducting bar hole is pyriform.
7. a kind of threephase asynchronous, which is characterized in that the motor includes stator, shaft, engine base and such as claim
Any rotors of 1-6, the shaft is installed in the axis hole of rotor, and is set along in engine base with stator；
The both ends of the engine base are equipped with end cap, and end cap is equipped with bearing, and the both ends of the rotor are mounted on by bearing on end cap.
8. motor according to claim 7, which is characterized in that one end of the shaft is equipped with a fan, and the wind
Fan is set to the outside of end cap,
9. motor rotor according to claim 1, which is characterized in that the outside of the fan is equipped with the wind of covering fan
Fan cover.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2018101451092 | 2018-02-12 | ||
| CN201810145109 | 2018-02-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108347109A true CN108347109A (en) | 2018-07-31 |
Family
ID=62955045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810338969.8A Pending CN108347109A (en) | 2018-02-12 | 2018-04-16 | A kind of motor rotor and threephase asynchronous |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108347109A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108768114A (en) * | 2018-08-28 | 2018-11-06 | 北京融信雅德科技有限公司 | Single-phase ultra-high efficiency copper casting rotor asynchronous motor |
| WO2023164885A1 (en) * | 2022-03-03 | 2023-09-07 | 罗灿 | Yoke cage-shaped coil induction rotor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102361384A (en) * | 2011-10-31 | 2012-02-22 | 南阳防爆集团股份有限公司 | High torque and ultra high-efficiency cast copper rotor three-phase asynchronous motor |
| CN102437697A (en) * | 2011-10-31 | 2012-05-02 | 南阳防爆集团股份有限公司 | Copper casting rotor |
| CN203747599U (en) * | 2013-11-28 | 2014-07-30 | 南阳防爆集团股份有限公司 | Rotor pressing ring structure used for mine flame-proof water cooling three-phase asynchronous motor |
| CN208445366U (en) * | 2018-02-12 | 2019-01-29 | 北京融信雅德科技有限公司 | A kind of motor rotor and threephase asynchronous |
-
2018
- 2018-04-16 CN CN201810338969.8A patent/CN108347109A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102361384A (en) * | 2011-10-31 | 2012-02-22 | 南阳防爆集团股份有限公司 | High torque and ultra high-efficiency cast copper rotor three-phase asynchronous motor |
| CN102437697A (en) * | 2011-10-31 | 2012-05-02 | 南阳防爆集团股份有限公司 | Copper casting rotor |
| CN203747599U (en) * | 2013-11-28 | 2014-07-30 | 南阳防爆集团股份有限公司 | Rotor pressing ring structure used for mine flame-proof water cooling three-phase asynchronous motor |
| CN208445366U (en) * | 2018-02-12 | 2019-01-29 | 北京融信雅德科技有限公司 | A kind of motor rotor and threephase asynchronous |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108768114A (en) * | 2018-08-28 | 2018-11-06 | 北京融信雅德科技有限公司 | Single-phase ultra-high efficiency copper casting rotor asynchronous motor |
| WO2023164885A1 (en) * | 2022-03-03 | 2023-09-07 | 罗灿 | Yoke cage-shaped coil induction rotor |
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Application publication date: 20180731 |