CN209448513U - The rectangular punching of shellless motor - Google Patents
The rectangular punching of shellless motor Download PDFInfo
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- CN209448513U CN209448513U CN201920115471.5U CN201920115471U CN209448513U CN 209448513 U CN209448513 U CN 209448513U CN 201920115471 U CN201920115471 U CN 201920115471U CN 209448513 U CN209448513 U CN 209448513U
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- rectangular punching
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Abstract
The utility model provides a kind of rectangular punching of shellless motor, belongs to technical field of motors.The problems such as it solves existing motor stamping and is not fully used, weak heat-dissipating.The utility model includes the circular hole between square body and setting in the body, multiple stator tooths and stator slot are evenly equipped with around its center at the circular hole of ontology, stator tooth and stator slot distribute alternately, the quantity of the stator slot is 36, it is provided with aeration structure at each angle of ontology, several screw holes are additionally provided on ontology.The utility model uses rectangular punching, so that punching is fully used, the yoke portion effective area of stator increases, and magnetic flux density reduces, and corresponding core loss reduces；Magnetic pole and magnetic field non-sine can be weakened using fractional-slot and be distributed generated higher hamonic wave potential, improve the waveform of electromotive force, reduction is lost as caused by harmonic wave；Increase ventilation slot, increases the area that iron core is contacted with air, so that iron core is more easier to shed with the temperature inside motor.
Description
Technical field
The utility model belongs to technical field of motors, and in particular to a kind of rectangular punching of shellless motor.
Background technique
Existing motor includes motor casing, stator core and rotor core, and stator core is formed by stacking by several stator punchings,
Rotor core is formed by stacking by several rotor punchings.There are iron core or the place around copper wire on stator or rotor, around copper wire
Slot is in place, and is tooth for what slot separated, and the position that all teeth are linked up is yoke portion.The inner ring surface of stator punching is around wherein
The heart is evenly equipped with multiple stator tooths and coil slot, and stator tooth and coil slot distribute alternately.The performance indicator of motor and its stator punching
Structure have very big connection, different structure (outer diameter, internal diameter including stator punching, flute profile) has different performances,
Especially the efficiency index of motor is had a huge impact with cogging torque.
Most of existing motor stamping is circle, and silicon steel sheet is not fully used；
Most of motor stator punching is integer slot (MgO-ZrO_2 brick is integer), and stator harmonic content is big, most of
Motor reduces harmonic wave using skewed stator slot or rotor chute, and the technique is extremely complex；The existing most of motors of 8P motor
Core loss is relatively high, and iron core heat dissipation is bad；Motor stator yoke portion area is small, the close height of stator yoke magnetic flux；Stator core laminates
It is well most of also to need to prevent punching from scattering using welding again.
Utility model content
The purpose of this utility model be for the above problem present in existing motor stamping, and propose it is a kind of it is rectangular, 36
8 pole of slot, punching laminate the rectangular punching of simple shellless motor.
The purpose of this utility model can be realized by the following technical scheme:
The rectangular punching of shellless motor, which is characterized in that it includes the circular hole between square body and setting in the body, ontology
Inner ring (circular hole) at around its center be evenly equipped with multiple stator tooths and stator slot, stator tooth and stator slot distribute alternately, described
The quantity of stator slot is 36, is provided with aeration structure at each angle of ontology, several screw holes are additionally provided on ontology.This is practical new
Type is 8 pole, 36 slot punching, uses fractional-slot (MgO-ZrO_2 brick is score).
Preferably, the side length of the ontology is 235mm-245mm.
Preferably, the side length of the ontology is 240mm.
Preferably, four angles of the ontology are chamfering.
Preferably, 8 screw holes are provided on the ontology, each edge of ontology is evenly equipped with 2 screw holes, 8 screw holes
Be centrosymmetric distribution.
Preferably, the aeration structure includes several ventilation slots, which is provided with two groups, the length of every group of ventilation slot
Spend different, two groups of ventilation slots are axisymmetricly distributed.
Preferably, the aeration structure is centrosymmetric distribution with above-mentioned center of circular hole.
There are two benefits for the setting of above-mentioned aeration structure, first is that having biggish heat dissipation contact area, can rush to stator
Piece radiates well；Second is that muscle is formed between adjacent two ventilation of each aeration structure, so as to increase punching
Intensity, so that punching is not easy to deform.
Preferably, it is provided at four angles of the ontology from riveting slot.Each punching may be implemented by being arranged from riveting slot
The positioning and fixation of overlapping.
Preferably, the diameter of the circular hole is 160mm.
Compared with prior art, the utility model has the following beneficial effects:
Using rectangular punching, so that punching is fully used, the yoke portion effective area of stator increases, magnetic flux density drop
Low, corresponding core loss reduces；Magnetic pole and magnetic field non-sine can be weakened using fractional-slot and be distributed generated higher hamonic wave potential,
The amplitude that tooth-harmonic emf can effectively be weakened, improves the waveform of electromotive force, and reduction is lost as caused by harmonic wave；Do not changing
In the case where magnetic circuit, increase ventilation slot, increase the area that iron core is contacted with air, so that the temperature inside iron core and motor is more
It is easy to shed；Stator punching is equipped with from riveting slot, and after stacked stator core presses, iron core does not need to weld again；Stator punching is set
There is screw hole, stator punching is folded the stator core to be formed and can directly be used as base, can by screw hole and corresponding long bolt
To be directly connected to front and rear cover.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
1, ontology；2, circular hole；3, stator tooth；4, stator slot；5, aeration structure；6, screw hole；7, ventilation slot；8, from riveting slot.
Specific embodiment
It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these examples.
As shown in Figure 1, the utility model proposes a kind of rectangular punching of shellless motor, it include square body 1 and setting
Circular hole 2 among ontology 1 is evenly equipped with multiple stator tooths 3 and stator slot 4 around its center at the inner ring (circular hole 2) of ontology 1, fixed
Sub- tooth 3 and stator slot 4 distribute alternately.The quantity of stator slot 4 is 36.
It is provided with aeration structure 5 at each angle of ontology 1, several screw holes 6 are additionally provided on ontology 1.The side length of ontology 1 is
235mm-245mm.The side length of ontology 1 is 240mm in the present embodiment.Here the side length of ontology 1 is shown in D in figure.
Four angles of ontology 1 are chamfering.8 screw holes 6 are provided on ontology 1, each edge of ontology 1 is evenly equipped with 2 spiral shells
6,8, hole screw hole 6 is centrosymmetric distribution.Aeration structure 5 includes several ventilation slots 7, which is provided with two groups, every group
The length of ventilation slot 7 is different, and two groups of ventilation slots 7 are axisymmetricly distributed.Aeration structure 5 is in center pair with above-mentioned 2 center of circular hole
Claim distribution.It is provided at four angles of ontology 1 from riveting slot 8.The diameter of above-mentioned circular hole 2 is 160mm.
The utility model uses rectangular punching, so that punching is fully used, the yoke portion effective area of stator increases, magnetic
Flux density reduces, and corresponding core loss reduces；Magnetic pole and magnetic field non-sine can be weakened using fractional-slot and be distributed generated high order
Harmonic wave potential can effectively weaken the amplitude of tooth-harmonic emf, improve the waveform of electromotive force, and reduction is damaged as caused by harmonic wave
Consumption；In the case where not changing magnetic circuit, increase ventilation slot 7, increase the area that iron core is contacted with air, so that in iron core and motor
The temperature in portion is more easier to shed；Stator punching is equipped with from riveting slot 8, and after stacked stator core presses, iron core does not need to weld again
It connects；Stator punching is equipped with screw hole 6, and stator punching is folded the stator core to be formed and can be used directly as base, passes through screw hole 6
And corresponding long bolt (not shown) can be directly connected to front and rear cover.
It should be understood that in claims, specification of the utility model, all " including ... " should be understood as out
The meaning of formula is put, that is, its meaning is equal to " at least containing ... ", but should not be understood as enclosed meaning, i.e. its meaning
It should not be construed " only including ... ".
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Claims (9)
1. the rectangular punching of shellless motor, which is characterized in that it includes the circular hole between square body and setting in the body, ontology
Multiple stator tooths and stator slot are evenly equipped with around its center at circular hole, stator tooth and stator slot distribute alternately, the stator slot
Quantity is 36, is provided with aeration structure at each angle of ontology, several screw holes are additionally provided on ontology.
2. the rectangular punching of shellless motor according to claim 1, which is characterized in that the side length of the ontology is 235mm-
245mm。
3. the rectangular punching of shellless motor according to claim 1, which is characterized in that the side length of the ontology is 240mm.
4. the rectangular punching of shellless motor according to claim 1, which is characterized in that four angles of the ontology are to fall
Angle.
5. the rectangular punching of shellless motor according to claim 1, which is characterized in that be provided with 8 spiral shells on the ontology
Hole, each edge of ontology are evenly equipped with 2 screw holes, and 8 screw holes are centrosymmetric distribution.
6. the rectangular punching of shellless motor according to claim 1, which is characterized in that the aeration structure includes several logical
Wind groove, the ventilation slot are provided with two groups, and the length of every group of ventilation slot is different, and two groups of ventilation slots are axisymmetricly distributed.
7. the rectangular punching of shellless motor according to claim 1, which is characterized in that the aeration structure is with above-mentioned circular hole
Center is centrosymmetric distribution.
8. the rectangular punching of shellless motor according to claim 1, which is characterized in that be arranged at four angles of the ontology
Have from riveting slot.
9. the rectangular punching of shellless motor according to claim 1, which is characterized in that the diameter of the circular hole is 160mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920115471.5U CN209448513U (en) | 2019-01-23 | 2019-01-23 | The rectangular punching of shellless motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920115471.5U CN209448513U (en) | 2019-01-23 | 2019-01-23 | The rectangular punching of shellless motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209448513U true CN209448513U (en) | 2019-09-27 |
Family
ID=68018932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920115471.5U Active CN209448513U (en) | 2019-01-23 | 2019-01-23 | The rectangular punching of shellless motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209448513U (en) |
-
2019
- 2019-01-23 CN CN201920115471.5U patent/CN209448513U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Shell less motor square stamping Effective date of registration: 20220922 Granted publication date: 20190927 Pledgee: Bank of Jinhua Limited by Share Ltd. science and Technology Branch Pledgor: JINHUA JIANGKE POWER Co.,Ltd. Registration number: Y2022980016005 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230920 Granted publication date: 20190927 Pledgee: Bank of Jinhua Limited by Share Ltd. science and Technology Branch Pledgor: JINHUA JIANGKE POWER Co.,Ltd. Registration number: Y2022980016005 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Shell less motor square punching plate Effective date of registration: 20230924 Granted publication date: 20190927 Pledgee: Bank of Jinhua Limited by Share Ltd. science and Technology Branch Pledgor: JINHUA JIANGKE POWER Co.,Ltd. Registration number: Y2023980058711 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |