CN206490520U - Rotor and motor - Google Patents
Rotor and motor Download PDFInfo
- Publication number
- CN206490520U CN206490520U CN201720201736.4U CN201720201736U CN206490520U CN 206490520 U CN206490520 U CN 206490520U CN 201720201736 U CN201720201736 U CN 201720201736U CN 206490520 U CN206490520 U CN 206490520U
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- rotor
- top surface
- bar
- slot
- motor
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Abstract
The utility model belongs to machine field, specifically provides a kind of rotor and motor.The utility model aims to solve the problem that rotor bar is easily caused rotor rupture and caused the problem of rotor heating is serious due to kelvin effect under the influence of centrifugal force when motor runs at high speed.For this purpose, gap is provided between the top surface intermediate region of rotor bar of the present utility model and the inwall of rotor slot, so that the inwall of rotor bar only first side and second side and rotor slot when motor rotates at a high speed it is inconsistent without make rotor bar top surface and rotor slot inwall it is inconsistent, and then avoid the phenomenon that caused by rotor bar centrifugal force silicon steel sheet is broken.Further, by the way that the top surface of rotor bar is arranged into plane or the structure of concave surface, influence of the kelvin effect to rotor heating is significantly reduced.
Description
Technical field
The utility model belongs to machine field, specifically provides a kind of rotor and motor.
Background technology
Simple in construction, sturdy and durable, reliable, efficiency is higher, easy to maintenance, price is low because it has for squirrel cage motor
Honest and clean the advantages of and be widely used.Matched somebody with somebody between the rotor slot and rotor bar of its rotor using equidistant gap everywhere
Close, so the top of rotor bar is directly contacted with the bottom of rotor slot in high speed operation of motor so that the centre of rotor slot
Position easily produces excessive stress and is broken.
Correspondingly, this area needs a kind of new rotor and motor to solve the above problems.
Utility model content
In order to solve above mentioned problem of the prior art, be solve when motor runs at high speed rotor slot due to stress
It is excessive and the problem of be easily broken off, the utility model provides a kind of rotor, including rotor core, in the rotor core
In it is circumferentially distributed have multiple rotor slots radially extended, rotor bar, the rotor are respectively equipped with the rotor slot
Sliver has the top surface positioned at radially outer, and the rotor slot has the bottom surface that the cross section relative with the top surface is arc,
In the circumferential, the gap of the top surface in the middle region between the bottom surface is more than the top surface in the region of both sides of the edge
With the gap between the bottom surface.
In the optimal technical scheme of above-mentioned rotor, the top surface is planar structure.
In the optimal technical scheme of above-mentioned rotor, the top surface is concave structure in the middle region.
In the optimal technical scheme of above-mentioned rotor, the top surface has wave structure.
In the optimal technical scheme of above-mentioned rotor, it is in both sides between the rotor bar and the rotor slot
Gap.
In the optimal technical scheme of above-mentioned rotor, section being radially directed towards along the rotor of the rotor bar
The direction in axle center is gradually reduced.
In the optimal technical scheme of above-mentioned rotor, the rotor bar is copper sliver.
In the optimal technical scheme of above-mentioned rotor, the rotor is the rotor of squirrel cage asynchronous motor.
On the other hand, the invention provides a kind of motor, it includes the rotor of the present invention.
It will be appreciated to those of skill in the art that in optimal technical scheme of the present utility model, by being led in rotor
Bigger gap is set between the top surface intermediate region of bar and the bottom surface of rotor slot so that rotor bar is when motor rotates at a high speed
Only two sides and the bottom surface of rotor slot it is inconsistent without make rotor bar top surface and rotor slot bottom surface it is inconsistent, and then
The concentrated stress of rotor bar and rotor core is reduced, improves rotor structure intensity, while skin effect of rotor bar is reduced, drop
Low-loss, improves motor continuous service ability.
Further, by the way that the top surface of rotor bar is arranged into plane or the structure of concave surface, collection skin effect is significantly reduced
Tackle the influence of rotor heating.
Brief description of the drawings
Fig. 1 is the rotor schematic diagram of embodiment of the present utility model；
Fig. 2 is the schematic diagram of the first embodiment of A portions rotor in Fig. 1；
Fig. 3 is the schematic diagram of the first embodiment of A portions rotor in Fig. 1.
Reference numerals list：
1st, rotor core；11st, rotor slot；2nd, rotor bar；21st, top；211st, first side；212nd, second side；
213rd, top surface.
Embodiment
Preferred embodiment of the present utility model described with reference to the accompanying drawings.It should be understood by those skilled in the art that
It is that these embodiments are used only for explaining technical principle of the present utility model, are not intended to limit protection of the present utility model
Scope.For example, although be relation drafting by a certain percentage between each part in accompanying drawing, but this proportionate relationship not one
Into constant, those skilled in the art can make adjustment to it as needed, to adapt to specific application scenario, after adjustment
Technical scheme will fall into protection domain of the present utility model.
It should be noted that in description of the present utility model, term " " center ", " on ", " under ", it is "left", "right", " perpendicular
Directly ", the direction of instruction such as " level ", " interior ", " outer " or the term of position relationship are closed based on direction shown in the drawings or position
System, this is intended merely to facilitate description, rather than indicates or imply that described device or element must have specific orientation, Yi Te
Fixed azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.In addition, term " first ", " second ",
" the 3rd " is only used for describing purpose, and it is not intended that indicating or implying relative importance.
As shown in figure 1, being provided with multiple rotor slots 11 on rotor core 1, one is inserted with respectively again in each rotor slot 11
Roots rotor sliver 2.Each rotor slot 11 as shown in fig. 1 and section being radially directed towards along rotor core 1 per roots rotor sliver 2
The direction in axle center is gradually reduced.Further, rotor bar 2 is copper sliver, so as to reducing resistance improves electric conductivity, and then
The performance of motor is improved, extra motor power consumption is reduced.Further, those skilled in the art can also be as needed by rotor
Sliver 2 is arranged to the structure of other shapes and material, it is necessary to which explanation, the technical scheme after change is without departing from the utility model
Technical scheme, protection domain of the present utility model will be fallen into.
As shown in Fig. 2 the inwall of rotor slot 11 includes the bottom surface (upper end of the inwall of rotor slot 11 in Fig. 2) and two of arc
The individual side (both sides of the inwall of rotor slot 11 in Fig. 2) for being connected to bottom surface two ends.The top 21 of rotor bar 2 includes the
One side 211, second side 212 and top surface 213.Further, set between the inwall of the intermediate region of top 21 and rotor slot 11
The gap (in figure do not indicate) bigger than both sides is equipped with, when rotor rotates at a high speed, rotor bar 2 under the influence of centrifugal force can
Produce the trend away from the axis of rotor core 1, and hence in so that the first side 211 and second side at the top of rotor bar 2 21
212 are contradicted on the bottom surface of the inwall of rotor slot 11, and intermediate region will not be contradicted with the bottom surface of the inwall of rotor slot 11.From figure
It is not difficult to find out in 2, rotor core 1 is less than the thickness of the top both sides of rotor slot 11 in the thickness of the crown center of rotor slot 11, because
This can be avoided rotor core 1 in height by the way that first side 211 and second side 212 are contradicted on the inwall of rotor slot 11
The phenomenon that the crown center position of rotor slot 11 is broken by the centrifugal action of rotor bar 2 during speed rotation.
It will be appreciated to those of skill in the art that during squirrel cage asynchronous motor practical set, rotor bar 2 leads to
Often coordinate with the gap of rotor core 1.In preferred embodiment of the present utility model, between rotor bar 2 and rotor slot 11
Except the outer other parts of top surface 213 such as are at the gaps.
Top surface 213 as shown in Figure 2 is in planar structure, and top surface 213 as shown in Figure 3 is in concave structure, by that will turn
The traditional convex configuration of sub- sliver 2, which makes planar structure or concave structure into, can reduce the resistance on the top of rotor bar 2, so as to
Enough reduce 2 indirect current of rotor bar when the problem of rotor heating is serious caused by kelvin effect.Or, those skilled in the art
Top surface 213 can also be designed to other any suitable structure shapes on the premise of it can reduce kelvin effect as needed
Formula, such as wave.
Further, in preferred embodiment of the present utility model, rotor core 1 is silicon steel sheet group, or this area skill
Art personnel can also be used as rotor core 1 from other materials as needed.
According to another aspect of the invention, motor is also provided, the motor can include any one electricity as described above
Machine rotor.
So far, combined preferred embodiment shown in the drawings describes the technical solution of the utility model, still, this
Art personnel are it is easily understood that protection domain of the present utility model is expressly not limited to these embodiments.
On the premise of principle of the present utility model, those skilled in the art can make equivalent change to correlation technique feature
Or replace, the technical scheme after these are changed or replaced it is fallen within protection domain of the present utility model.
Claims (9)
- It is circumferentially distributed in the rotor core to have multiple radially extend 1. a kind of rotor, including rotor core Rotor slot, is respectively equipped with rotor bar, the rotor bar has the top surface positioned at radially outer, described in the rotor slot Rotor slot has the bottom surface that the cross section relative with the top surface is arc,Characterized in that, in the circumferential, the gap of the top surface in the middle region between the bottom surface is more than the top surface Gap in the region of both sides of the edge between the bottom surface.
- 2. rotor according to claim 1, it is characterised in that the top surface is planar structure.
- 3. rotor according to claim 1, it is characterised in that the top surface is concave structure in the middle region.
- 4. rotor according to claim 1, it is characterised in that the top surface has wave structure.
- 5. according to rotor according to any one of claims 1 to 4, it is characterised in that the rotor bar and described turn The gap such as it is in both sides between pilot trench.
- 6. according to rotor according to any one of claims 1 to 4, it is characterised in that the section edge of the rotor bar The direction for being radially directed towards axle center of the rotor is gradually reduced.
- 7. according to rotor according to any one of claims 1 to 4, it is characterised in that the rotor bar is copper sliver.
- 8. according to rotor according to any one of claims 1 to 4, it is characterised in that the rotor is squirrel-cage The rotor of asynchronous machine.
- 9. a kind of motor, it is characterised in that the motor is included according to rotor according to any one of claims 1 to 8.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720201736.4U CN206490520U (en) | 2017-03-03 | 2017-03-03 | Rotor and motor |
| TW107202824U TWM570560U (en) | 2017-03-03 | 2018-03-02 | Motor rotor and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720201736.4U CN206490520U (en) | 2017-03-03 | 2017-03-03 | Rotor and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206490520U true CN206490520U (en) | 2017-09-12 |
Family
ID=59762443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720201736.4U Active CN206490520U (en) | 2017-03-03 | 2017-03-03 | Rotor and motor |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN206490520U (en) |
| TW (1) | TWM570560U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112510874A (en) * | 2020-10-29 | 2021-03-16 | 浙江合众新能源汽车有限公司 | Induction motor rotor conducting bar and preparation method thereof |
-
2017
- 2017-03-03 CN CN201720201736.4U patent/CN206490520U/en active Active
-
2018
- 2018-03-02 TW TW107202824U patent/TWM570560U/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112510874A (en) * | 2020-10-29 | 2021-03-16 | 浙江合众新能源汽车有限公司 | Induction motor rotor conducting bar and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| TWM570560U (en) | 2018-11-21 |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |