CN109347219A - A kind of stator core and its motor of application - Google Patents
A kind of stator core and its motor of application Download PDFInfo
- Publication number
- CN109347219A CN109347219A CN201811524176.1A CN201811524176A CN109347219A CN 109347219 A CN109347219 A CN 109347219A CN 201811524176 A CN201811524176 A CN 201811524176A CN 109347219 A CN109347219 A CN 109347219A
- Authority
- CN
- China
- Prior art keywords
- punching
- stator core
- punching group
- group
- lateral surface
- 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.)
- Pending
Links
- 238000004080 punching Methods 0.000 claims abstract description 155
- 230000004580 weight loss Effects 0.000 claims abstract description 24
- 229910000976 Electrical steel Inorganic materials 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000010586 diagram Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000002360 explosive Substances 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
- H02K1/12—Stationary parts of the magnetic circuit
-
- 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
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/20—Stationary parts of the magnetic circuit with channels or ducts for flow of cooling medium
Abstract
The invention discloses a kind of stator core and its motors of application, the stator core includes yoke portion and several teeth portion for stretching out inwardly from yoke portion, it is characterized by: stator core is stacked by several first punching groups and several second punching groups, first punching group and the second punching group interval are arranged, the section of the outer surface of first punching group is circle, and the second lateral surface of the second punching group is recessed with several weight loss grooves.First punching group ensure that the combination of stator core and motor case, and the weight loss groove of the second punching group alleviates the weight of stator core, reduces silicon steel sheet dosage, reduce production cost.
Description
Technical field:
The present invention relates to a kind of stator core and its motors of application.
Background technique:
Existing motor includes motor case, stator assembly and rotor assembly, and stator module is mounted on motor case around interior
Intracavitary, rotor assembly is mounted in stator module, and stator module includes stator core made of several stator punchings stack, and one
As the outside of stator core be circle, the second lateral surface of stator core and the intracavity inner surface tight fit, this structure
Stator core, stator core weight is big, at high cost.
Summary of the invention:
The object of the present invention is to provide a kind of stator core and its motors of application, can solve existing stator core weight
Greatly, problem at high cost.
The purpose of the present invention is what is be achieved by following technical proposals:
A kind of stator core surrounds among several teeth portion including yoke portion and several teeth portion stretched out inwardly from yoke portion
Heart hole, it is characterised in that: stator core is stacked by several first punching groups and several second punching groups, the first punching group with
Second punching group interval setting, the first lateral surface of the first punching group be diameter be D1 cylinder, the second punching group second outside
The maximum radial width L1 of side meets L1≤D1, if at least partly the second lateral surface is recessed using the first lateral surface as boundary
Dry weight loss groove.
The quantity of first punching group described above is at least 2.
Stator core described above is stacked by two the first punching groups and a second punching group, the second punching group position
Between two the first punching groups.
The thickness H1 of above-mentioned each first punching group meets: H >=5mm.
The overall thickness of several above-mentioned the first punching groups is greater than or equal to 10mm.
Second lateral surface of the second punching group described above includes spaced several arc surfaces and several butt faces, is cut
The weight loss groove is formed between aspect and the end face of two neighboring first punching group.
The diameter of arc surface described above is less than or equal to the diameter of the first punching group.
The section of second lateral surface of the second punching group described above is circle, the outer diameter D 2 of the second punching group and the first punching
Meet D2 < D1 between the outer diameter D 1 of piece group, the end face of the second lateral surface of the second punching group and two neighboring first punching group it
Between form the weight loss groove.
The section of second lateral surface of the second punching group described above be polygon, the maximum width L1 of the second punching group with
Meet L1≤D1, the second lateral surface of the second punching group and two neighboring first punching group between the outer diameter D 1 of first punching group
The weight loss groove is formed between end face.
The section of second lateral surface of the second punching group described above be the first lateral surface of inscribed first punching group just
Hexagon.
A second object of the present invention is to provide a kind of motors, including shaft, rotor assembly, motor case and stator pack
Part, shaft link together with rotor assembly, and rotor is mounted in stator module, and stator module is mounted in motor case, fixed
Sub-component includes stator core, it is characterised in that: the stator core is stator core described above, the first punching group
The first lateral surface and the motor case inner surface tight fit.
Motor case described above is equipped with several heat release holes, and the heat release hole is located at the periphery of weight loss groove.
Meet between the height H3 of heat release hole described above and the thickness H2 of the second punching group: 0.8H2≤H3≤H2.
Compared with prior art, the present invention having the effect that
1) a kind of stator core, including yoke portion and several teeth portion stretched out inwardly from yoke portion, among several teeth portion
Surround centre bore, it is characterised in that: stator core is stacked by several first punching groups and several second punching groups, the first punching
Piece group and the second punching group interval are arranged, and the first lateral surface of the first punching group is that diameter is D1 cylinder, the second punching group
The maximum radial width L1 of second lateral surface meets L1≤D1, and at least partly the second lateral surface is using the first lateral surface as boundary indent
Form several weight loss grooves；First punching group ensure that the combination of stator core and motor case, and the weight loss groove of the second punching group subtracts
The light weight of stator core, reduces silicon steel sheet dosage, reduces production cost；
2) quantity of the first punching group is at least 2；More than two first punching groups make entire stator core and electricity
Machine casing preferably contacts fixation；
3) the thickness H1 of each first punching group meets: H1 >=5mm ensure that the knot of stator core and motor case
With joint efforts；The overall thickness of several the first punching groups, which is greater than or equal to 10mm, can guarantee that stator core is basic with motor case
Binding force.
4) the second lateral surface of the second punching group includes spaced several arc surfaces and several butt faces, butt
The weight loss groove is formed between face and the end face of two neighboring first punching group, structure is simple, convenient for production；
5) section of the second lateral surface of the second punching group is circle, the outer diameter D 2 and the first punching of the second punching group
Meet D2 < D1 between the outer diameter D 1 of group, is formed between the periphery of the second punching group and the end face of two neighboring first punching group
The weight loss groove；It is further reduced the weight of iron core, reduces cost；
6) section of the second lateral surface of the second punching group is polygon, the punching of the maximum width L1 of polygon and first
Meet L1≤D1 between the outer diameter D 1 of piece group, the end face of the second lateral surface of the second punching group and two neighboring first punching group it
Between form the weight loss groove；Structure is simple, convenient for production；
7) section of the second lateral surface of the second punching group is positive the six of the first lateral surface of inscribed first punching group
Side shape is punched principle according to silicon steel sheet, and the utilization rate of the silicon steel sheet of regular hexagon reaches 99% or more, relatively conventional arc-shaped punching
Piece, cost are substantially reduced；
8) motor is improved by the mechanism to stator core, while guaranteeing that stator core performance is stablized,
The silicon steel sheet dosage for reducing stator core, reduces production cost；
9) motor case is equipped with several heat release holes, and the heat release hole is located at the periphery of weight loss groove；Heat release hole ensure that
The heat dissipation effect of second punching group.
Detailed description of the invention:
Fig. 1 is the structural schematic diagram for the stator core that the embodiment of the present invention one provides；
Fig. 2 is the side view for the stator core that the embodiment of the present invention one provides；
Fig. 3 is the explosive view for the stator core that the embodiment of the present invention one provides；
Fig. 4 is the structural schematic diagram of stator core provided by Embodiment 2 of the present invention；
Fig. 5 is the main view of stator core provided by Embodiment 2 of the present invention；
Fig. 6 is the explosive view of stator core provided by Embodiment 2 of the present invention；
Fig. 7 is the structural schematic diagram for the stator core that the embodiment of the present invention three provides；
Fig. 8 is the main view for the stator core that the embodiment of the present invention three provides；
Fig. 9 is the explosive view for the stator core that the embodiment of the present invention three provides；
Figure 10 is the punching punching arrangement figure of the first punching group in the stator core that the embodiment of the present invention three provides；
Figure 11 is the punching punching arrangement figure of the second punching group in the stator core that the embodiment of the present invention three provides；
Figure 12 is the structural schematic diagram for the motor that the embodiment of the present invention four provides；
Figure 13 is the A-A cross-sectional view of Figure 12.
Specific embodiment:
Below by specific embodiment and in conjunction with attached drawing, the present invention is described in further detail.
Embodiment one:
As shown in Figure 1 to Figure 3, provided in this embodiment is a kind of stator core, including yoke portion 91 and inside from yoke portion 91
Several teeth portion 92 that side is stretched out surround centre bore 93 among several teeth portion 92, it is characterised in that: stator core is rushed by several first
Piece group 1 and several second punching groups 2 stack, and the first punching group 1 and the second punching group 2 interval are arranged, the first punching group 1
First lateral surface 11 is that diameter is D1 cylinder, and the maximum radial width L1 of the second lateral surface 21 of the second punching group 2 meets L1
≤ D1, at least partly the second lateral surface 21 are that boundary is recessed several weight loss grooves 22 with the first lateral surface 11.First punching group 1
Periphery 11 ensure that the combination of stator core and motor case, the weight loss groove 21 of the second punching group 2 alleviates stator core
Weight, reduce silicon steel sheet dosage, reduce production cost.Centre bore 93 is surrounded among several teeth portion 92, makes the first punching
Group 1 and several second punching groups 2 guarantee concentricity when assembling.
The quantity of first punching group 1 described above is at least 2.More than two first punching groups make entire stator core with
Motor case preferably contacts fixation.
The quantity of the first punching group 1 and the second punching group 2 can determine according to the specific size of stator core, such as:
+ one the second punching group 2 of two the first punching groups or two the first punching group 1+, tri- the second punching groups 2 or three first punchings
Two second punching groups 2 of piece group 1+ etc..
In the present embodiment, the stator core is stacked by two the first punching groups 1 and a second punching group 2, the
Two punching groups 2 are located between two the first punching groups 1.Two the first punching groups 1 are located at 2 two sides of the second punching group, are stator iron
Core is may be used in middle stretching electric motor end cap.
Thickness H1 for the binding force for guaranteeing stator core and motor case, above-mentioned each first punching group 1 meets:
H1≥5mm。。
As another option, the overall thickness of several above-mentioned the first punching groups 1 is greater than or equal to 10mm.
Second lateral surface 21 of the second punching group 2 described above includes spaced several arc surfaces 211 and several cuts
Aspect 212 forms the weight loss groove 22 between butt face 212 and the end face 12 of two neighboring first punching group 1.Structure is simple,
It is convenient for production.
The diameter of arc surface 211 described above is less than or equal to the diameter of the first punching group 1.
Embodiment two:
As shown in Figures 4 to 6, provided in this embodiment is that stator core is similar with stator core described in embodiment one, no
It is with place:
The section of second lateral surface 21 of the second punching group 2 is circle, the outer diameter D 2 of the second punching group 2 and the first punching
Meet D2 < D1, the second lateral surface 21 and the two neighboring first punching group 1 of the second punching group 2 between the outer diameter D 1 of piece group 1
The weight loss groove 22 is formed between end face 12.It is further reduced the weight of iron core, reduces cost.
Embodiment three:
As shown in Figure 7 to 9, provided in this embodiment is that stator core is similar with stator core described in embodiment one, no
It is with place:
The section of second lateral surface 21 of the second punching group 2 be polygon, the maximum width L1 of the second punching group 2 with
Meet L1≤D1, the second lateral surface 21 of the second punching group 2 and two neighboring first punching between the outer diameter D 1 of first punching group 1
The weight loss groove 22 is formed between the end face 12 of group 1.
As a kind of preference, the section of the second lateral surface 21 of the second punching group 2 is inscribed first punching group 1
The regular hexagon of first lateral surface 11.
As shown in Figure 10 and Figure 11, the first punching group 1 is stacked by several and the first punching 10, the second punching group
2 are stacked by several and the second punching 20.The utilization rate of the silicon steel sheet of regular hexagon reaches 99% or more, the second punching 20
(regular hexagon) compared with the first punching 10 (circle), the utilization rate of silicon steel sheet is high, saves raw material, makes being produced into for stator core
Originally it is substantially reduced.
As another option, the section of the second lateral surface 21 of the second punching group 2 is inscribed first punching group 1
The first lateral surface 11 octagon etc..
Example IV:
As shown in Figure 12 and Figure 13, provided in this embodiment is a kind of motor, including shaft 41, rotor assembly 42, motor machine
Shell 3 and stator module, shaft 41 link together with rotor assembly 42, and rotor 42 is mounted in stator module, stator module peace
In motor case 3, stator module includes stator core 9, it is characterised in that: the stator core 9 is for embodiment one or in fact
Apply stator core described in example two or embodiment three, the first lateral surface 11 and the motor case 3 of the first punching group 1
32 tight fit of inner surface.It is improved by the mechanism to stator core 9, while guaranteeing that 9 performance of stator core is stablized, is subtracted
The silicon steel sheet dosage for having lacked stator core 9, reduces production cost.
Motor case 3 described above is equipped with several heat release holes 31, and the heat release hole 31 is located at the periphery of weight loss groove 22.Heat dissipation
Hole 31 ensure that the heat dissipation effect of the second punching group 2.
Meet between the height H3 of heat release hole 31 described above and the thickness H2 of the second punching group 2: 0.8H2≤H3≤H2.
Above embodiments are better embodiment of the invention, and embodiments of the present invention are not limited thereto, other are any
Made changes, modifications, substitutions, combinations, simplifications without departing from the spirit and principles of the present invention are equivalent displacement side
Formula is included within the scope of the present invention.
Claims (13)
1. a kind of stator core, including yoke portion (91) and several teeth portion (92) stretched out inwardly from yoke portion (91), several teeth portion
(92) intermediate to surround centre bore, it is characterised in that: stator core is by several first punching groups (1) and several second punching groups (2)
It stacks, the first punching group (1) and the second punching group (2) interval are arranged, and the first lateral surface (11) of the first punching group (1) is
Diameter is D1 cylindrical, and the maximum radial width L1 of the second lateral surface (21) of the second punching group (2) meets L1≤D1, at least portion
The second lateral surface (21) are divided to be recessed several weight loss grooves (22) with the first lateral surface (11) for boundary.
2. a kind of stator core according to claim 1, it is characterised in that: the quantity of the first punching group (1) is at least
It is 2.
3. a kind of stator core according to claim 2, it is characterised in that: the stator core is by two the first punching groups
(1) it is stacked with a second punching group (2), the second punching group (2) is located between two the first punching groups (1).
4. a kind of stator core according to claim 2, it is characterised in that: the thickness of each first punching group (1)
H1 meets: H1 >=5mm.
5. a kind of stator core according to any one of claim 2, it is characterised in that: several described first punchings
The overall thickness of group (1) is greater than or equal to 10mm.
6. a kind of stator core described according to claim 1 or 2 or 3 or 4 or 5, it is characterised in that: the second punching group
(2) the second lateral surface (21) includes spaced several arc surfaces (211) and several butt faces (212), butt face (212)
The weight loss groove (22) are formed between the end face (12) of two neighboring first punching group (1).
7. a kind of stator core according to claim 6, it is characterised in that: the diameter of the arc surface (211) be less than or
Equal to the diameter of the first punching group (1).
8. a kind of stator core described according to claim 1 or 2 or 3 or 4 or 5, it is characterised in that: the second punching group
(2) section of the second lateral surface (21) is circle, the outer diameter D 1 of the outer diameter D 2 of the second punching group (2) and the first punching group (1)
Between meet D2 < D1, the end face (12) of the second lateral surface (21) of the second punching group (2) and two neighboring first punching group (1)
Between form the weight loss groove (22).
9. a kind of stator core described according to claim 1 or 2 or 3 or 4 or 5, it is characterised in that: the second punching group
(2) section of the second lateral surface (21) is polygon, the maximum width L1 of the second punching group (2) and the first punching group (1)
Meet L1≤D1, the end of the second lateral surface (21) of the second punching group (2) and two neighboring first punching group (1) between outer diameter D 1
The weight loss groove (22) are formed between face (12).
10. a kind of stator core according to claim 9, it is characterised in that: the second outside of the second punching group (2)
The section in face (21) is the regular hexagon of the first lateral surface (11) of inscribed first punching group (1).
11. a kind of motor, including shaft (41), rotor assembly (42), motor case (3) and stator module, shaft (41) with turn
Sub-component (42) links together, and rotor (42) is mounted in stator module, and stator module is mounted in motor case (3), fixed
Sub-component includes stator core (9), it is characterised in that: the stator core (9) is described in any one of claim 1 to 9
Stator core, inner surface (32) close-fitting of the first lateral surface (11) of the first punching group (1) and the motor case (3)
It closes.
12. a kind of motor according to claim 11, it is characterised in that: the motor case (3) is equipped with several heat release holes
(31), the heat release hole (31) is located at the periphery of weight loss groove (22).
13. a kind of motor according to claim 12, it is characterised in that: the punching of the height H3 of the heat release hole (31) and second
Meet between the thickness H2 of piece group (2): 0.8H2≤H3≤H2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811524176.1A CN109347219A (en) | 2018-12-13 | 2018-12-13 | A kind of stator core and its motor of application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811524176.1A CN109347219A (en) | 2018-12-13 | 2018-12-13 | A kind of stator core and its motor of application |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109347219A true CN109347219A (en) | 2019-02-15 |
Family
ID=65304394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811524176.1A Pending CN109347219A (en) | 2018-12-13 | 2018-12-13 | A kind of stator core and its motor of application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109347219A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201674284U (en) * | 2010-03-30 | 2010-12-15 | 中山大洋电机制造有限公司 | Motor stator core and electric motor using same |
| CN203352305U (en) * | 2013-05-31 | 2013-12-18 | 中山大洋电机制造有限公司 | Motor stator punching sheet and plastic packaging motor using same |
| CN204205740U (en) * | 2014-09-29 | 2015-03-11 | 中山大洋电机股份有限公司 | The motor of a kind of stator core and application thereof |
| CN205489835U (en) * | 2016-01-25 | 2016-08-17 | 广东威灵电机制造有限公司 | Stator is towards piece, stator core , stator and motor |
| WO2016150128A1 (en) * | 2015-03-20 | 2016-09-29 | 中山大洋电机股份有限公司 | Manufacturing method for plastic package stator, plastic package stator and external rotor motor |
| CN206211688U (en) * | 2016-10-17 | 2017-05-31 | 中山大洋电机股份有限公司 | A kind of motor stator punching and apply its motor |
| CN209233572U (en) * | 2018-12-13 | 2019-08-09 | 中山大洋电机股份有限公司 | A kind of stator core and its motor of application |
-
2018
- 2018-12-13 CN CN201811524176.1A patent/CN109347219A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201674284U (en) * | 2010-03-30 | 2010-12-15 | 中山大洋电机制造有限公司 | Motor stator core and electric motor using same |
| CN203352305U (en) * | 2013-05-31 | 2013-12-18 | 中山大洋电机制造有限公司 | Motor stator punching sheet and plastic packaging motor using same |
| CN204205740U (en) * | 2014-09-29 | 2015-03-11 | 中山大洋电机股份有限公司 | The motor of a kind of stator core and application thereof |
| WO2016150128A1 (en) * | 2015-03-20 | 2016-09-29 | 中山大洋电机股份有限公司 | Manufacturing method for plastic package stator, plastic package stator and external rotor motor |
| CN205489835U (en) * | 2016-01-25 | 2016-08-17 | 广东威灵电机制造有限公司 | Stator is towards piece, stator core , stator and motor |
| CN206211688U (en) * | 2016-10-17 | 2017-05-31 | 中山大洋电机股份有限公司 | A kind of motor stator punching and apply its motor |
| CN209233572U (en) * | 2018-12-13 | 2019-08-09 | 中山大洋电机股份有限公司 | A kind of stator core and its motor of application |
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