CN203967847U - Stator core and there is the motor of this stator core - Google Patents
Stator core and there is the motor of this stator core Download PDFInfo
- Publication number
- CN203967847U CN203967847U CN201420353356.9U CN201420353356U CN203967847U CN 203967847 U CN203967847 U CN 203967847U CN 201420353356 U CN201420353356 U CN 201420353356U CN 203967847 U CN203967847 U CN 203967847U
- Authority
- CN
- China
- Prior art keywords
- stator core
- groove position
- magnetic bridge
- motor
- core
- 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 - Lifetime
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 19
- 229910052742 iron Inorganic materials 0.000 abstract description 9
- 230000005405 multipole Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model is applicable to electric machine structure technical field, stator core is provided and has had the motor of this stator core.Stator core comprises Wound core portion, described Wound core portion has tooth portion, described tooth portion is provided with a plurality of and circumferentially arranges along described Wound core portion, between adjacent teeth portion, by magnetic bridge portion, connect as one, the two ends of described tooth portion are close to described magnetic bridge portion part and offer groove position, or the two ends of described magnetic bridge portion are close to described tooth portion place and offer groove position.Described motor has above-mentioned stator core.Stator core provided by the utility model and there is the motor of this stator core, each tooth portion or each magnetic bridge of its stator core have at least two groove positions, by being set, groove position changed the length of pole arc of stator, thereby can effectively reduce back-emf harmonic wave, and by groove position is set, magnetic bridge width reduces, and can effectively reduce between cog leakage field, thereby reduces the efficiency of iron loss and raising motor.
Description
Technical field
The utility model belongs to electric machine structure technical field, relates in particular to a kind of stator core and has the motor of this stator core.
Background technology
Current motor, for example, for the multipole closed slot motor of few groove, its stator core construction is multipole closed slot structure, back-emf harmonic wave is more, and, few multipole closed slot motor of groove of the prior art, the iron loss of its stator core is larger, and efficiency is low.
Utility model content
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, stator core is provided and has had the motor of this stator core, and its back-emf harmonic wave is less, and the iron loss of stator core is little, and efficiency is high.
The utility model is achieved in that a kind of stator core, comprise Wound core portion, described Wound core portion has a plurality of tooth portion, described tooth portion is along the circumferential setting of described Wound core portion, described tooth portion has tooth top portion, between adjacent described tooth top portion, by magnetic bridge portion, connects as one, and the two ends of described tooth top portion offer groove position, or the two ends of described magnetic bridge portion offer groove position.
Alternatively, described groove position is opened in described magnetic bridge portion outside.
Alternatively, described groove position is opened in described magnetic bridge portion inner side.
Alternatively, described groove position is opened in respectively outside and the inner side of described magnetic bridge portion.
Alternatively, the yoke portion of described Wound core portion is affixed, and is provided with location structure between adjacent yoke portion.
Alternatively, described location structure is bump type location structure, and it comprises the location notch of the yoke portion that is opened in and be opened in the positioning convex portion of adjacent yoke portion, and described positioning convex portion is arranged in described location notch.
Alternatively, the cross section semicircular in shape of described location notch, the cross section semicircular in shape of described positioning convex portion.
Alternatively, the number of described tooth portion is 18, and the number of described groove position is 36.
Alternatively, described groove position is rectangular.
The utility model also provides a kind of motor, and described motor has above-mentioned stator core.
Stator core provided by the utility model and there is the motor of this stator core, each tooth portion or each magnetic bridge of its stator core have at least two groove positions, by being set, groove position changed the length of pole arc of stator, thereby can effectively reduce back-emf harmonic wave, and by groove position is set, magnetic bridge width reduces, and can effectively reduce between cog leakage field, thereby reduces the efficiency of iron loss and raising motor.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, to the accompanying drawing of required use in embodiment be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the front view of the stator core that provides of the utility model embodiment;
Fig. 2 is that the stator core while not offering groove position in the stator core that provides of the utility model embodiment and prior art is equal to the back-emf test result figure in situation in other condition;
Fig. 3 is that the stator core while not offering groove position in the stator core that provides of the utility model embodiment and prior art is equal to the iron loss test result figure in situation in other condition.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
It should be noted that, when element is called as " being fixed on " or " being arranged at " another element, it can be directly on another element or may have centering elements simultaneously.When an element " being connected in " another element of being known as, it can be directly connected to another element or may have centering elements simultaneously.
Also it should be noted that, the orientation term such as left and right, upper and lower in the present embodiment, is only that relative concept or the normal operating condition of product of take are reference each other, and should not be regarded as have restrictive.
As shown in Figure 1, a kind of stator core that the utility model embodiment provides, comprise Wound core portion 10, Wound core portion 10 has a plurality of tooth portions 11 and a plurality of winding slot 110, tooth portion 11 is along the circumferential setting of Wound core portion 10, described tooth portion 11 has tooth top portion, between adjacent teeth top 11, by magnetic bridge portion 12, connect as one, the two ends of tooth portion 11 offer groove position 101, or, the two ends of magnetic bridge portion 12 offer groove position 101, groove position 101 can be positioned at tooth top portion 11 and be close to the end of magnetic bridge portion 12, by groove position 101 is set, change the length of pole arc of stator core, thereby can reduce back-emf harmonic wave, can effectively reduce between cog leakage field, thereby reduce the efficiency of iron loss and raising motor.
It shown in Fig. 2, is the stator core being provided with in the present embodiment while not offering groove position in the stator core of groove position 101 and prior art, in other condition, be equal to the back-emf test result figure in situation, dotted line is depicted as the signal of electronics stator core before fluting in prior art, solid line is depicted as the signal of electronics stator core after fluting in the present embodiment, as can be seen from Figure 2, the motor in the present embodiment with the electronics stator core behind groove position 101, its back-emf reduces, as can be seen from Figure 2, the motor in the present embodiment with the stator core behind groove position 101, back-emf harmonic component reduces to some extent, and fundamental voltage amplitude increases, thereby the in the situation that of identical input, increased torque output.
It shown in Fig. 3, is the stator core being provided with in the present embodiment while not offering groove position in the stator core of groove position 101 and prior art, in other condition, be equal to the iron loss test result figure in situation, dotted line is depicted as the signal of electronics stator core before fluting in prior art, solid line is depicted as the signal of electronics stator core after fluting in the present embodiment, from Fig. 2, can obviously find out, the motor in the present embodiment with the electronics stator core behind groove position, its iron loss obviously reduces.
In the present embodiment, as shown in Figure 1, groove position 101 is opened in the outside of tooth top portion 11 or magnetic bridge portion 12, reduces the effective of leakage field.
Or groove position 101 is opened in tooth top portion 11 or magnetic bridge portion 12 inner sides, also can reach the effect that reduces leakage field.
Groove position 101 can also be opened in respectively to outside and the inner side of tooth top portion 11 or magnetic bridge portion 12, groove position 101 is provided with two groups, is arranged at respectively tooth top portion 11 or magnetic bridge portion 12 outsides and inner side, also can reach the effect that reduces leakage field.
Particularly, as shown in Figure 1, the yoke portion of Wound core portion 10 is affixed, and is provided with location structure between adjacent yoke portion, so that the structural reliability of stator core is high.
Particularly, as shown in Figure 1, location structure is bump type location structure, the positioning convex portion 104 that it comprises the location notch 103 of the yoke portion that is opened in and is opened in adjacent yoke portion, positioning convex portion 104 is stuck in location notch 103, and adjacent teeth top 11 is difficult for dislocation relatively, is beneficial to the performance that improves motor.
Alternatively, as shown in Figure 1, the cross section semicircular in shape of location notch 103, the cross section semicircular in shape of positioning convex portion 104, it is easy to processing and avoids stress to concentrate, and certainly, the cross section of location notch 103 and positioning convex portion 104 also can be trapezoidal or " V " font etc.
In the present embodiment, as shown in Figure 1, the number of tooth portion 11 is 18, and the number of groove position 101 is 36 and along the 10 external circumferential settings of Wound core portion.Certainly, understandably, the quantity of the quantity of tooth top portion 11 and groove position 101 also can be set according to the actual requirements.
Alternatively, as shown in Figure 1, groove position 101 is rectangular, and certainly, groove position 101 also can be trapezoidal or " V " font etc.
Stator core provided by the utility model, it is vertical row type iron core, then be wound into ring-type and become Wound core portion 10, each tooth top portion 11 or each magnetic bridge of stator core have at least two groove positions 101, groove position 101 can be positioned at tooth top portion 11, and the corresponding magnetic bridge section in groove position 101 can be as far as possible little, the visual concrete condition optimization of 101 positions, groove position and width, by groove position 101 is set, change the length of pole arc of stator, thereby can effectively reduce back-emf harmonic wave.And by groove position 101 is set, magnetic bridge width reduces, and can effectively reduce between cog leakage field, thereby reduce iron loss and the efficiency that improves motor.
The utility model embodiment also provides a kind of motor, and this motor has above-mentioned stator core.
These are only preferred embodiment of the present utility model, not in order to limit the utility model, all any modifications of doing within spirit of the present utility model and principle, be equal to and replace or improvement etc., within all should being included in protection range of the present utility model.
Claims (10)
1. a stator core, comprise Wound core portion, described Wound core portion has a plurality of tooth portion, described tooth portion is along the circumferential setting of described Wound core portion, and described tooth portion has tooth top portion, between adjacent described tooth top portion, by magnetic bridge portion, connects as one, it is characterized in that, the two ends of described tooth top portion offer groove position, or the two ends of described magnetic bridge portion offer groove position.
2. stator core as claimed in claim 1, is characterized in that, described groove position is opened in described magnetic bridge portion outside.
3. stator core as claimed in claim 1, is characterized in that, described groove position is opened in described magnetic bridge portion inner side.
4. stator core as claimed in claim 1, is characterized in that, described groove position is opened in respectively outside and the inner side of described magnetic bridge portion.
5. the stator core as described in any one in claim 1 to 4, is characterized in that, the yoke portion of described Wound core portion is affixed, and is provided with location structure between adjacent yoke portion.
6. stator core as claimed in claim 5, is characterized in that, described location structure is bump type location structure, and it comprises the location notch of the yoke portion that is opened in and be opened in the positioning convex portion of adjacent yoke portion, and described positioning convex portion is arranged in described location notch.
7. stator core as claimed in claim 6, is characterized in that, the cross section semicircular in shape of described location notch, the cross section semicircular in shape of described positioning convex portion.
8. the stator core as described in any one in claim 1 to 4, is characterized in that, the number of described tooth portion is 18, and the number of described groove position is 36.
9. the stator core as described in any one in claim 1 to 4, is characterized in that, described groove position is rectangular.
10. a motor, is characterized in that, described motor has stator core as claimed in any one of claims 1-9 wherein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420353356.9U CN203967847U (en) | 2014-06-26 | 2014-06-26 | Stator core and there is the motor of this stator core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420353356.9U CN203967847U (en) | 2014-06-26 | 2014-06-26 | Stator core and there is the motor of this stator core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203967847U true CN203967847U (en) | 2014-11-26 |
Family
ID=51928391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420353356.9U Expired - Lifetime CN203967847U (en) | 2014-06-26 | 2014-06-26 | Stator core and there is the motor of this stator core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203967847U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114448116A (en) * | 2022-01-27 | 2022-05-06 | 合肥工业大学 | Stator suitable for closed slot induction motor |
-
2014
- 2014-06-26 CN CN201420353356.9U patent/CN203967847U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114448116A (en) * | 2022-01-27 | 2022-05-06 | 合肥工业大学 | Stator suitable for closed slot induction motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141126 |