CN202009276U - High-efficiency slotless micromotor - Google Patents
High-efficiency slotless micromotor Download PDFInfo
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- CN202009276U CN202009276U CN2011201104014U CN201120110401U CN202009276U CN 202009276 U CN202009276 U CN 202009276U CN 2011201104014 U CN2011201104014 U CN 2011201104014U CN 201120110401 U CN201120110401 U CN 201120110401U CN 202009276 U CN202009276 U CN 202009276U
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- stator core
- outer diameter
- diameter
- slotless
- efficiency
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- 238000004804 winding Methods 0.000 claims abstract description 9
- 229910000976 Electrical steel Inorganic materials 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 11
- 241001014327 Anodontia Species 0.000 description 5
- 206010002583 anodontia Diseases 0.000 description 5
- 230000005212 anodontia Effects 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 150000003376 silicon Chemical class 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229920001342 Bakelite® Polymers 0.000 description 1
- 239000004637 bakelite Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Abstract
本实用新型涉及一种微电机，具体公开了一种高效率无槽微电机。它包括呈空心圆柱形的定子铁芯、粘贴在所述定子铁芯内壁的定子绕组线圈、以及安装于所述定子铁芯内腔的圆柱形转子磁体；所述定子铁芯的内外直径规格包括以下尺寸：外径39.6±0.2毫米、内径27.3±1毫米，外径22.9±0.2毫米、内径17.0±1毫米，外径33.8±0.2毫米、内径24.4±1毫米，外径26.3±0.2毫米、内径17.0±1毫米。本实用新型通过尺寸改进，不仅使得其效率高、温升低，且更加平稳、省料和节能。
The utility model relates to a micro motor, and specifically discloses a high-efficiency slotless micro motor. It includes a stator core in the shape of a hollow cylinder, a stator winding coil pasted on the inner wall of the stator core, and a cylindrical rotor magnet installed in the inner cavity of the stator core; the inner and outer diameter specifications of the stator core include the following dimensions: outer diameter 39.6±0.2 mm, inner diameter 27.3±1 mm, outer diameter 22.9±0.2 mm, inner diameter 17.0±1 mm, outer diameter 33.8±0.2 mm, inner diameter 24.4±1 mm, outer diameter 26.3±0.2 mm, inner diameter 17.0±1 mm. The utility model not only has high efficiency and low temperature rise through size improvement, but also is more stable, material-saving and energy-saving.
Description
Technical field
The present invention relates to a kind of electrical micro-machine, be specifically related to a kind of high efficiency slotless electrical micro-machine.
Background technology
At present, existing electrical micro-machine mainly comprises two classes: have tooth that groove electrical micro-machine and anodontia slotless electric machines are arranged.So-called have tooth that groove is arranged, and the stator that is meant its motor is band tooth and multi-groove structure, and it exists, and efficient is low, torque fluctuations is big, electromagnetic noise is big, corresponding slow and with shortcomings such as power phase specific volume are bigger, can not adapt to the demand of people for electrical micro-machine.
Though, existing anodontia slotless electric machines has had certain improvement there being tooth to have on the groove electrical micro-machine basis, such as No. 200620040424.1 utility model patent of China, it comprises stationary part, rotor portion, be provided with radial clearance between rotor and the stator, described stator core is a cylinder-shaped iron core, and described stator winding directly sticks on described stator core internal circular surfaces.Yet its efficient and temperature rise performance are never all bad, and especially efficient has only about 50%.
Summary of the invention
In order to address the above problem, the object of the present invention is to provide the better high efficiency slotless electrical micro-machine of a kind of efficient and temperature rise performance.
For achieving the above object, technical scheme that the present invention adopts is as follows:
A kind of high efficiency slotless electrical micro-machine comprises the stator core that is hollow cylinder, the stator winding coil that sticks on described stator core inwall and the cylindrical rotor magnet that is installed on described stator core inner chamber; The inner and outer diameter specification of described stator core comprises following size:
39.6 ± 0.2 millimeters of external diameters, 27.3 ± 1 millimeters of internal diameters,
22.9 ± 0.2 millimeters of external diameters, 17.0 ± 1 millimeters of internal diameters,
33.8 ± 0.2 millimeters of external diameters, 24.4 ± 1 millimeters of internal diameters,
26.3 ± 0.2 millimeters of external diameters, 17.0 ± 1 millimeters of internal diameters.
Described efficient slotless electrical micro-machine, described stator core is made of multilayer laminated silicon steel sheet together.
Under 26 ℃ of conditions of ambient temperature, with portion size of the present invention with the contrast dimensions, carry out efficient and temperature rise test following table:
Table 1
Table 2
Wherein, first group of external diameter, 39.6 internal diameters 27.3, the 3rd group of external diameter 22.8 internal diameters 17.0, the 4th group of external diameter 26.3 internal diameters 17.0, the 5th group of specification experimental data that external diameter 33.8 internal diameters 2.4 are selected for the present invention, second group of external diameter, 39.6 internal diameters 29.0, the 6th group of external diameter 33.8 internal diameters 26.0 are the contrast reference data; Wherein, long-pending thick is the height of its hollow cylinder of stator core.
The applicant finds that by practice the efficient of electrical micro-machine and temperature rise and its stator dimensions size are closely related, so, found several groups of preferred specifications of the present invention by a large amount of experiment tests and statistical research, make that its efficient is higher, temperature rise is lower.Such as: the magnetic circuit magnetic resistance of the stator core of the 5th group of external diameter 33.8 internal diameters 2.4 is the most reasonable, and magnetic resistance was little when its magnetic line of force passed, and the iron core iron loss is just little, i.e. efficient height, electric machine temperature rise is low, and temperature rise just can be satisfied various high and low rotating speed requirements.As changing its internal diameter into 26.0, as the 6th group of experiment, iron core magnetic conduction narrowed width at this moment will increase the saturation of stator core, and then the magnetic circuit magnetic resistance becomes big, and magnetic resistance became big when the magnetic line of force passed, and the iron core iron loss is just big, i.e. efficient step-down, and electric machine temperature rise raises.As changing its external diameter into 35, promptly be external diameter 35 internal diameters 24.4, will reduce the degree of saturation of stator core, then the magnetic circuit magnetic resistance is littler, magnetic resistance was littler when the magnetic line of force passed, and the iron core iron loss is little, i.e. efficient height, and electric machine temperature rise is low, but materials will increase, and weight increases the weight of, and cost will increase.
Therefore, the present invention not only efficient height, temperature rise is low, and more steadily, material-saving and energy-conservation.
Description of drawings
The picture that this description of drawings provided is used for auxiliary to further understanding of the present invention, constitutes the application's a part, does not constitute to improper qualification of the present invention, in the accompanying drawings:
Fig. 1 is a structural representation of the present invention.
Diagram:
1, casing 2, stator core
3, stator winding coil 4, bonnet
5, bearing 6, rotor axle sleeve
7, lead 8, wire bushing
9, rotor magnet 10, bearing
11, bakelite meson 12, axle core
Embodiment
Describe the present invention in detail below in conjunction with accompanying drawing and specific implementation method, be used for explaining the present invention in schematic enforcement of the present invention and explanation, but not as a limitation of the invention.
Embodiment 1:
As shown in Figure 1, the invention discloses a kind of high efficiency slotless electrical micro-machine, comprise the stator core 2 that is hollow cylinder, the cylindrical rotor magnet 9 that sticks on the stator winding coil 3 of described stator core 2 inwalls and be installed on described stator core inner chamber, 39.6 ± 0.2 millimeters of the external diameters of described stator core 2,27.3 ± 1 millimeters of internal diameters, described stator core 2 is made of multilayer laminated silicon steel sheet together.
The stator core 2 of the hollow cylinder of the anodontia slotless of the present invention, its silicon steel sheet inner surface is pasted with stator winding coil 3, has eliminated the torque fluctuations that has groove motor teeth groove to cause.
When stator winding coil 3 a certain switched on mutually, the magnetic field interaction that the magnetic pole of this electric current and rotor permanent-magnet steel produced and produce torque, the rotation of driving rotor, by position signalling the rotor magnetic steel evolution is become the signal of telecommunication again, remove to control electronic switch circuit, thereby make the every winding of stator by a graded conducting, the stator phase current is commutation according to a certain order with the variation of rotor-position.Because the conducting order of electronic switch circuit is synchronous with angle of rotor, thereby played the commutation effect of mechanical commutator.
Embodiment 2:
Present embodiment and implement 1 the different inside/outside diameter sizes that are the stator core 2 of its hollow cylinder: the stator core 2 in the present embodiment, its external diameter are that 22.9 ± 0.2 millimeters, internal diameter are 17.0 ± 1 millimeters.
Embodiment 3:
Present embodiment and implement 1 the different inside/outside diameter sizes that are the stator core 2 of its hollow cylinder: the stator core 2 in the present embodiment, its external diameter are that 33.8 ± 0.2 millimeters, internal diameter are 24.4 ± 1 millimeters.
Embodiment 4:
Present embodiment and implement 1 the different inside/outside diameter sizes that are the stator core 2 of its hollow cylinder: the stator core 2 in the present embodiment, its external diameter are that 26.3 ± 0.2 millimeters, internal diameter are 17.0 ± 1 millimeters.
The anodontia stator structure of slotless of the present invention makes electric efficiency higher, can alleviate 30% with power weight, material-saving and energy-conservation; Its non-groove stator structure can reduce torque fluctuations, and even running reduces noise, more environmental protection; Simultaneously, the anodontia stator structure of slotless also can reduce the spooling equipment cost, increases work efficiency.
More than the technical scheme that the embodiment of the invention provided is described in detail, used specific case herein the principle and the execution mode of the embodiment of the invention are set forth, the explanation of above embodiment only is applicable to the principle that helps to understand the embodiment of the invention; Simultaneously, for one of ordinary skill in the art, according to the embodiment of the invention, the part that on embodiment and range of application, all can change, in sum, this description should not be construed as limitation of the present invention.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201104014U CN202009276U (en) | 2011-04-14 | 2011-04-14 | High-efficiency slotless micromotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201104014U CN202009276U (en) | 2011-04-14 | 2011-04-14 | High-efficiency slotless micromotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202009276U true CN202009276U (en) | 2011-10-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201104014U Expired - Fee Related CN202009276U (en) | 2011-04-14 | 2011-04-14 | High-efficiency slotless micromotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202009276U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102739001A (en) * | 2011-04-14 | 2012-10-17 | 东莞市毅瑞得电机有限公司 | Slotless micromotor with high efficiency |
-
2011
- 2011-04-14 CN CN2011201104014U patent/CN202009276U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102739001A (en) * | 2011-04-14 | 2012-10-17 | 东莞市毅瑞得电机有限公司 | Slotless micromotor with high efficiency |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111012 Termination date: 20150414 |
|
| EXPY | Termination of patent right or utility model |