CN210669671U - External rotor single-phase alternating-current generator - Google Patents
External rotor single-phase alternating-current generator Download PDFInfo
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- CN210669671U CN210669671U CN201922133883.4U CN201922133883U CN210669671U CN 210669671 U CN210669671 U CN 210669671U CN 201922133883 U CN201922133883 U CN 201922133883U CN 210669671 U CN210669671 U CN 210669671U
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Abstract
The utility model discloses an external rotor single phase alternating current generator, including rotor, stator and rectifier circuit, wherein: the rotor comprises magnets, a motor shell and a rotating shaft, the rotating shaft is arranged in the center of the motor shell, and the magnets are uniformly distributed on the inner wall of the motor shell in a mode that any two adjacent magnets are opposite in polarity; the stator comprises a motor base plate, an iron core wire slot and windings, wherein a bearing seat is arranged in the center of the motor base plate, and the windings are wound by being clung to the inner wall of the iron core wire slot by adopting a method of reversely connecting any two adjacent windings in series and then sleeved on the outer wall of the bearing seat; the number ratio of the windings to the magnets is 1: 1. The utility model discloses magnet is the same with component winding quantity, and consequently when magnet magnetic field cutting component winding, the motion angular velocity and the winding induced voltage phase angular velocity of magnet are synchronous, the condition that induced magnetic field offset can not appear, therefore efficiency improves to some extent, generates heat and reduces to some extent.
Description
Technical Field
The utility model relates to a generator field, concretely relates to external rotor single phase alternating current generator.
Background
The existing three-phase permanent magnet alternating current generator is used as a miniaturized generator set to charge a storage battery and be independently used, the number of rotor magnets and the number of stator silicon steel slots are generally 2: 3, the width of the cross section area of the magnets can span three windings at the same time, and the induced magnetic field in the windings is partially offset, so that partial efficiency is lost. However, the field of miniaturized generators is mostly driven by an internal combustion engine, the efficiency of the internal combustion engine is not higher than 50%, and a rectifying circuit in the common field also consumes certain power, so that the efficiency loss part of the three-phase permanent magnet alternating-current generator is not taken into consideration by people all the time.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides an external rotor single-phase alternating current generator that generating efficiency is high, the rate of heat generation is low.
In order to achieve the purpose, the utility model adopts the following technical scheme: the utility model provides an outer rotor single phase alternating current generator which characterized in that, includes rotor, stator and rectifier circuit, wherein:
the rotor comprises magnets, a motor shell and a rotating shaft, the rotating shaft is arranged in the center of the motor shell, and the magnets are uniformly distributed on the inner wall of the motor shell in a mode that any two adjacent magnets are opposite in polarity;
the stator comprises a motor base plate, an iron core wire slot and windings, wherein a bearing seat is arranged in the center of the motor base plate, and the windings are wound by being clung to the inner wall of the iron core wire slot by adopting a method of reversely connecting any two adjacent windings in series and then sleeved on the outer wall of the bearing seat; the rotating shaft on the shell is inserted into the bearing seat, so that the rotor and the stator are matched into a whole;
the number ratio of the windings to the magnets is 1: 1.
Preferably, the motor base plate is provided with a screw hole, and the motor base plate is fixedly connected with the motor shell through screws.
Preferably, when the rotor is driven by external power to rotate, the component magnetic fields of the magnets respectively cut the component windings on the iron core wire slots, and sine wave induction currents with potential changes are generated on the windings, wherein the voltage phase angle of the sine wave induction currents is the same as the movement angle quantity of the rotor magnets.
Preferably, the winding further comprises a rectifying circuit, and the sine wave alternating current generated by the winding is rectified into direct current by the rectifying circuit and then output.
Preferably, the winding is a single phase winding.
Preferably, the number ratio of the windings to the iron core wire grooves is 1: 1.
The utility model discloses profitable technological effect: the utility model discloses a single-phase single-winding's design, two adjacent windings are reverse to be established ties, and magnet is the same with component winding quantity, consequently when magnet magnetic field cutting component winding, the motion angular velocity of magnet and winding induced voltage phase angular velocity are synchronous, the condition that induced magnetic field offset can not appear, therefore efficiency improves to some extent, generates heat and reduces to some extent.
Drawings
Fig. 1 is a first exploded view of an external rotor single-phase ac generator according to the present invention.
Fig. 2 is a second exploded view of the external rotor single-phase ac generator according to the present invention.
Fig. 3 is a schematic circuit diagram of the rectifier circuit of the present invention.
The names of the components in the figures correspond to the following reference numbers:
a rotor-1, a magnet-12, a motor shell-11 and a rotating shaft-13; stator-2, motor base plate-21, iron core wire casing-22, winding-23 and bearing seat-24.
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Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments, but the scope of the present invention is not limited to the following specific embodiments.
As shown in fig. 1 to 3, an external rotor single-phase ac generator includes a rotor 1, a stator 2, and a rectifying circuit, wherein:
the rotor 1 comprises a magnet 12, a motor shell 11 and a rotating shaft 13, wherein the rotating shaft 13 is arranged in the center of the motor shell 11, and the magnets 12 are uniformly distributed on the inner wall of the motor shell 11 in a mode that any two adjacent magnets are opposite in polarity;
the stator 2 comprises a motor base disc 21, an iron core wire casing 22 and a winding 23, wherein a bearing seat 24 is arranged in the center of the motor base disc 21, and the winding 23 is wound tightly to the inner wall of the iron core wire casing 22 by adopting a method of connecting any two adjacent windings in series in an opposite direction and then sleeved on the outer wall of the bearing seat 24; the rotating shaft 13 on the motor shell is inserted into the bearing seat 24, so that the rotor 1 and the stator 2 are matched into a whole.
The winding 23 is a single-phase winding, the number ratio of the winding 23 to the magnet 12 is 1: 1, the number ratio of the winding 23 to the iron core wire slot 22 is 1: 1, two adjacent windings 23 are connected in series in an opposite direction, and the number of the magnet 12 is the same as that of the winding 23, so that when the magnet 12 cuts the winding 23 in a magnetic field, the motion angular speed of the magnet 12 is synchronous with the phase angular speed of the induced voltage of the winding 23, the situation of offsetting of the induced magnetic field cannot occur, the efficiency is improved, and the heat generation is reduced.
The motor base plate 21 is provided with screw holes, and the motor base plate 21 is fixedly connected with the motor shell 11 through screws. When the rotor rotates under the driving of external power, the component magnetic field of the magnet respectively cuts the component windings on the iron core wire grooves, sine wave induction current with potential change is generated on the windings, and the voltage phase angle of the sine wave induction current is the same as the movement angle of the rotor magnet.
The utility model discloses an engine still includes rectifier circuit, the sine wave alternating current that winding 23 produced by rectifier circuit rectification is direct current and exports again, specifically, the sine wave alternating current of motor output is the direct current by single-phase rectifier bridge rectification, then inserts suitable electrolytic capacitor group's positive negative pole correctly to organize the both ends stationary flow by electrolytic capacitor and export for next-stage direct current load.
The utility model discloses a winding is single-phase winding among the generator, and stator silicon steel groove and rotor magnet number are 1: 1. The single-phase alternating-current power can be output at a rated rotating speed, and the same-ratio power generation voltage is higher than that of a three-phase generator, and the same-ratio power generation efficiency is higher than that of the three-phase alternating-current generator. Through output rectification, higher generating voltage and smaller overall volume and mass can be realized under the application of providing charging for a storage battery in a certain scene, particularly as a range extender or a small gasoline generator set.
Variations and modifications to the above-described embodiments may occur to those skilled in the art, in light of the above teachings and teachings. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should fall within the protection scope of the claims of the present invention. In addition, although specific terms are used in the specification, the terms are used for convenience of description and do not limit the utility model in any way.
Claims (7)
1. The utility model provides an outer rotor single phase alternating current generator which characterized in that, includes rotor, stator and rectifier circuit, wherein:
the rotor comprises magnets, a motor shell and a rotating shaft, the rotating shaft is arranged in the center of the motor shell, and the magnets are uniformly distributed on the inner wall of the motor shell in a mode that any two adjacent magnets are opposite in polarity;
the stator comprises a motor base plate, an iron core wire slot and windings, wherein a bearing seat is arranged in the center of the motor base plate, and the windings are wound by being clung to the inner wall of the iron core wire slot by adopting a method of reversely connecting any two adjacent windings in series and then sleeved on the outer wall of the bearing seat; the rotating shaft on the shell is inserted into the bearing seat, so that the rotor and the stator are matched into a whole;
the number ratio of the windings to the magnets is 1: 1.
2. An external rotor single-phase alternating current generator as claimed in claim 1, wherein said motor base plate is provided with screw holes, and said motor base plate is fixedly connected with the motor casing by screws.
3. An external rotor single-phase ac generator according to claim 1, wherein when the rotor is rotated by the external power, the component magnetic fields of said magnets cut the windings on the slots of the core respectively, and sine wave induced currents with potential variations are generated on the windings.
4. An external rotor single-phase ac generator according to claim 3, wherein a voltage phase angle of the sine wave induced current is the same as the magnet movement angle amount.
5. The external rotor single-phase ac generator according to claim 1, further comprising a rectifying circuit, wherein the sine-wave ac generated by the winding is rectified into dc by the rectifying circuit and then outputted.
6. An external rotor single-phase ac generator according to claim 1, wherein said windings are single-phase windings.
7. An external rotor single-phase ac generator according to claim 6, wherein the number ratio of the windings to the core slots is 1: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922133883.4U CN210669671U (en) | 2019-11-28 | 2019-11-28 | External rotor single-phase alternating-current generator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922133883.4U CN210669671U (en) | 2019-11-28 | 2019-11-28 | External rotor single-phase alternating-current generator |
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| CN210669671U true CN210669671U (en) | 2020-06-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922133883.4U Active CN210669671U (en) | 2019-11-28 | 2019-11-28 | External rotor single-phase alternating-current generator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113258694A (en) * | 2021-06-29 | 2021-08-13 | 瓷金科技(河南)有限公司 | Single-phase alternating current permanent magnet synchronous motor |
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2019
- 2019-11-28 CN CN201922133883.4U patent/CN210669671U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113258694A (en) * | 2021-06-29 | 2021-08-13 | 瓷金科技(河南)有限公司 | Single-phase alternating current permanent magnet synchronous motor |
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