CN2762424Y - Permanent magnetic compensation pulse AC generator - Google Patents
Permanent magnetic compensation pulse AC generator Download PDFInfo
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- CN2762424Y CN2762424Y CN 200420076057 CN200420076057U CN2762424Y CN 2762424 Y CN2762424 Y CN 2762424Y CN 200420076057 CN200420076057 CN 200420076057 CN 200420076057 U CN200420076057 U CN 200420076057U CN 2762424 Y CN2762424 Y CN 2762424Y
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Abstract
The utility model relates to a permanent magnetic compensation type pulse AC generator, which belongs to a motor. By aiming at the disadvantages of a compensation type pulse AC generator at present, the utility model has the advantages of reliability increase, efficiency increase, volume reduction and electromagnetic interference reduction. A stator of the utility model is formed by overlaying silicon steel sheets, a circular cavity is arranged in the stator and an armature coil is fixed on the inner surface of the stator and is connected with the stator through a terminating section which extends out of a stator iron core. A rotor is arranged in the stator and is driven by a prime mover to rotate, the rotor body is composed of ferromagnetic substances, and permanent magnets adopt rare-earth permanent magnetic materials and are arrayed on the outer surface of the rotor body in a tight spacing mode. Magnetic isolating materials are placed among the permanent magnets, and a shielding sleeve barrel is arranged outside the permanent magnets and the magnetic isolating materials for fixing the permanent magnets and the magnetic isolating materials. Due to the adoption of the permanent magnets as an excitation source, an excitation circuit is omitted. The problems of ablation of an electric brush, electromagnetic field interference, etc. which are brought by a slip ring of the electric brush can be effectively avoided. Meanwhile, the work efficiency of a system is increased, the complexity is reduced and the utility model has the possibility to further increase the work rotation speed of the generator.
Description
Technical field
The utility model belongs to a kind of motor, is specifically related to Compensated Pulsed Alternator.
Background technology
Existing Compensated Pulsed Alternator, its general way that applies current excitation that adopts in magnetic field that is used for excitation produces, and driving source can add, and also can be produced by armature supply.Yet, because no matter rotor rotation is to adopt rotating armature, or rotating excitation magnetic field, all have the problem that is electrically connected of rotating part and stationary part.Especially power is big more, and it is difficult more that it is electrically connected problem.It is described to show " Electrical Motor " (1987) according to Wang Guoliang, and the general at present connectivity scenario that adopts mainly is that slip ring and brush cooperate, thereby brings a lot of problems: 1) wear of brush and ablation.2) brush and slip ring contact performance are because the contact resistance increase that flexibility decrease is brought.3) electric current produces electric spark, the interference of electromagnetic field problem of bringing by brush and armature.4) reduced the operating efficiency of complete machine.5) limited the further lifting of generator working speed.In addition,, also need a cover field power supply device, increased the complexity and the volume of system for the motor of separate excitation mode work.
Summary of the invention
Shortcoming at present Compensated Pulsed Alternator, the utility model provides a kind of permanent-magnet compensation formula Pulsed Alternator, thereby solve the variety of problems that slip ring and brush bring, to reach the increase reliability, improve the complete machine operating efficiency, reduce system bulk, reduce the purpose of electromagnetic interference simultaneously.
A kind of permanent-magnet compensation formula Pulsed Alternator that the utility model proposed comprises a stator, a cover and is fixed on and is used on the stator to produce and armature coil, a rotor of projected current and be used for the bearing of support rotor rotation usefulness, it is characterized in that:
(1) described stator is formed by stacking by silicon steel sheet, and inside is circular cavity, is used for placing rotor, and the working portion of armature coil conductor is fixed on stator inner surface, connects by the termination portion of stretching out the stator core outside;
(2) described rotor is made of rotor body, rotating shaft, shielding cylinder, permanent magnet and non-magnetic NULL, and rotor body is made of ferromagnetic material, and combines closely with rotating shaft; Permanent magnet adopts the rare earth permanent-magnetic material of high-coercive force, and tight spacing is arranged in the outer surface of rotor body; NULL is positioned between the permanent magnet; Shielding cylinder is enclosed within permanent magnet and NULL outside, plays the purpose of fixed permanent magnet and NULL simultaneously; Rotor is placed on stator interior, by the bearing fixing position, by prime mover driven rotary.
Above-mentioned permanent-magnet compensation formula Pulsed Alternator, its further feature are that armature coil conductor connects by the termination portion of stretching out the stator core outside; According to its arrangement and connected mode in stator interior, described armature coil winding can constitute single-phase, two-phase or heterogeneous form, and every phase electromotive force has different voltage-phases according to its position.
Above-mentioned permanent-magnet compensation formula Pulsed Alternator, described permanent magnet cross section can be for fan-shaped; Described NULL, cross section can also be positioned between the permanent magnet for fan-shaped; Described shielding cylinder is processed into cylindrical shape by good conductive material.
The external shape of stator can have multiple, to adapt to different occasions and needs are installed.The working portion of armature coil conductor utilizes high-strength structureal adhesives to stick on stator inner surface, connects by the termination portion of stretching out the stator core outside, and its connected mode can have multiple.The operation principle of this device is as follows:
Provide magnetic pumping by permanent magnet, the path of the magnetic field process of its generation is permanent magnet 1-shielding cylinder-air gap-armature winding-stator core-armature winding-air gap-shielding cylinder-permanent magnet 2-rotor core-permanent magnet 1.Why directly armature winding directly being sticked on stator inner surface rather than be placed on like that in the groove as motor, mainly is in order to overcome the increase of the saturated and armature winding leakage inductance that teeth groove causes of tooth portion magnetic circuit that teeth groove may bring.When rotor carries out high speed rotating by prime mover drive, because the rotor rotation is followed in magnetic field, make armature winding produce the cutting electromotive force, thereby at armature winding exit generation voltage.Therefore because magnetic field is for rotation, what produce at the armature winding exit also is the voltage of alternation.When needs impulse generator power output, utilize external switch that armature winding is connected with load, just can reach purpose to the load power output.The effect of shielding cylinder is when impulse generator during to load discharge in the device, because the eddy current effect of shielding cylinder, the armature reaction that armature winding produces can not enter rotor, thereby has reduced the equivalent inductance of armature winding greatly, has improved the ability of impulse generator power output.
Owing to adopt the driving source of permanent magnet as magnetic field, therefore saved the field circuit of general indemnity formula impulse generator, thereby avoided effectively that electric brush slip ring brings such as problems such as brush ablation, the interference of electromagnetic field.Improved the operating efficiency of generator system simultaneously, and, reduced the complexity of system, and might further improve the generator working speed owing to saved excitation unit.
Description of drawings
Fig. 1 is a stationary part schematic diagram of the present utility model, and Fig. 1 a is the sectional view of stator structure, and Fig. 1 b is the end view of stator structure.
Fig. 2 is a rotor portion schematic diagram of the present utility model, and Fig. 2 a is the rotor structure sectional view, and Fig. 2 b is the rotor structure end view.
Fig. 3 is the armature winding wiring schematic diagram.
Embodiment
Also in conjunction with the accompanying drawings the utility model is described in further detail below by specific embodiment.
Embodiment one:
Constitute a permanent-magnet compensation formula Pulsed Alternator by stator shown in Figure 1 and rotor shown in Figure 2.Shown in the figure is that a concrete quarternary vein is towards alternating current generator.Four utmost point motors can be regarded as the simple repetition of a basic two-stage electric motor, and are in full accord to potential waveform under the pole-face at each.Fig. 1 a is the sectional view of stator structure, and Fig. 1 b is the end view of stator structure.The armature winding of installing on the stator among the figure 1 utilizes the high strength glue at stator inner surface.Stator body 2 constitutes by silicon steel sheet is superimposed.Fig. 2 a is the rotor structure sectional view, and Fig. 2 b is the rotor structure end view.Rotor among the figure is made of rotating shaft 4, rotor body 5, permanent magnet 7, NULL 6 and shielding cylinder 3.The permanent magnet of installing 7 is rare-earth permanent magnet (neodymium iron boron), has the residual magnetic flux density height, the characteristic of high-coercive force and high energy product, its cross section is processed into fan-shaped, whole shape constitutes tile shape, and closely is arranged in rotor body 5 surfaces, constitutes 4 magnetic poles.NULL 6 uses aluminum to process, and is fixed on rotor body.
In the present embodiment, armature winding adopts two phase windings, and this two-phase is mutually orthogonal in the locus.The connection layout of armature winding is seen Fig. 3, and a1 is a cover winding of a phase among the figure, and a2 is a synchronous other cover winding.B1 be with a mutually quadrature the b phase one the cover winding, in like manner b2 be the b phase other one the cover winding.A can carry out parallel connection with two cover windings of b phase according to the needs of load in externally being connected mutually or series connection is used.Every straight line is represented 8 circle conductors among the figure.The conductor number of the every extremely every phase of motor is 16.16 circle coils are just arranged under each pole-face.Provide magnetic pumping and the path of the magnetic field process that produces is the permanent magnet 1-shielding cylinder-air gap-armature winding-stator core-armature winding-air gap-shielding cylinder-permanent magnet 2-rotor core-permanent magnet 1 among Fig. 2 by permanent magnet.The path, magnetic field is identical under a pair of in addition pole-face.When the rotor rotation, permanent magnet rotates thereupon, produces induced potential in armature winding, and draw at port this 16 circle coil electromotive force series connection back.Draw four groups of voltages at port altogether, its phase difference of the voltage of out of phase is 90 degree.According to the general theory of AC Electrical Machine Winding, the induced potential effective value of generation is E=4.44fw φ k.Wherein f is the frequency of induced potential, and f=np/60 is arranged, and (p: the motor number of pole-pairs, n: motor speed), w is every number of turn of contacting mutually.φ is every utmost point magnetic flux.K is a winding coefficient.And the coil of the same phase place of different pole-faces can be connected, also can be in parallel, decide according to the loaded work piece situation.
After motor speed reached certain value, the output potential of armature winding reached predetermined value, and can export power and the current waveform that needs this moment by external discharge loop and control loop control generator.
Need to prove that described small electromotor structure of the utility model and working method have some distortion.For example require the connected mode different to winding according to processing technology; Difference that NULL is used or the like.All these conspicuous modification all should be considered as content disclosed in the utility model and protection range of the present utility model.
Embodiment two:
Stator structure and embodiment one are in full accord.Difference is that the armature end-connections connected mode adopts concentric type to connect.Connected mode is simple, the signal of no longer drawing.Certainly, winding also can adopt the mode of lap winding to connect.Rotor structure is also consistent with embodiment one, just NULL is replaced by epoxy resin.
Claims (3)
1. permanent-magnet compensation formula Pulsed Alternator comprises a stator, a cover and is fixed on and is used on the stator to produce and armature coil, a rotor of projected current and be used for the bearing of support rotor rotation usefulness, it is characterized in that:
(1) described stator is formed by stacking by silicon steel sheet, and inside is circular cavity, is used for placing rotor, and the working portion of armature coil conductor is fixed on stator inner surface, connects by the termination portion of stretching out the stator core outside;
(2) described rotor is made of rotor body, rotating shaft, shielding cylinder, permanent magnet and non-magnetic NULL, and rotor body is made of ferromagnetic material, and combines closely with rotating shaft; Permanent magnet adopts the rare earth permanent-magnetic material of high-coercive force, and tight spacing is arranged in the outer surface of rotor body; NULL is positioned between the permanent magnet; Shielding cylinder is enclosed within permanent magnet and NULL outside, plays the purpose of fixed permanent magnet and NULL simultaneously; Rotor is placed on stator interior, by the bearing fixing position, by prime mover driven rotary.
2. permanent-magnet compensation formula Pulsed Alternator as claimed in claim 1 is characterized in that armature coil conductor connects by the termination portion of stretching out the stator core outside; According to its arrangement and connected mode in stator interior, described armature coil winding constitutes single-phase, two-phase or heterogeneous form, and every phase electromotive force has different voltage-phases according to its position.
3. permanent-magnet compensation formula Pulsed Alternator as claimed in claim 1 or 2 is characterized in that described permanent magnet cross section is fan-shaped; Described NULL, cross section also are fan-shaped, are positioned between the permanent magnet; Described shielding cylinder is processed into cylindrical shape by good conductive material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420076057 CN2762424Y (en) | 2004-07-22 | 2004-07-22 | Permanent magnetic compensation pulse AC generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420076057 CN2762424Y (en) | 2004-07-22 | 2004-07-22 | Permanent magnetic compensation pulse AC generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2762424Y true CN2762424Y (en) | 2006-03-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420076057 Expired - Lifetime CN2762424Y (en) | 2004-07-22 | 2004-07-22 | Permanent magnetic compensation pulse AC generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2762424Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100362732C (en) * | 2004-07-22 | 2008-01-16 | 华中科技大学 | Permanent magnet compensation type pulse AC generator |
| CN103456456A (en) * | 2013-09-18 | 2013-12-18 | 柴立民 | Rotating-magnetic-field generator |
| CN106921271A (en) * | 2015-12-24 | 2017-07-04 | 奥迪股份公司 | For the motor and motor vehicle of motor vehicle |
| CN107126629A (en) * | 2017-04-25 | 2017-09-05 | 浙江和也健康科技有限公司 | A kind of Gyromagnetic machine structure |
| CN107710574A (en) * | 2017-09-07 | 2018-02-16 | 刘远芳 | Impulse generator and corresponding passive proportion control device and its adjusting method |
| CN110022021A (en) * | 2019-03-28 | 2019-07-16 | 珠海凯邦电机制造有限公司 | Plastic packaging stator, plastic packaging motor and method for winding |
-
2004
- 2004-07-22 CN CN 200420076057 patent/CN2762424Y/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100362732C (en) * | 2004-07-22 | 2008-01-16 | 华中科技大学 | Permanent magnet compensation type pulse AC generator |
| CN103456456A (en) * | 2013-09-18 | 2013-12-18 | 柴立民 | Rotating-magnetic-field generator |
| CN103456456B (en) * | 2013-09-18 | 2016-05-11 | 安吉司润磁性材料有限公司 | A kind of rotating magnetic field generator |
| CN106921271A (en) * | 2015-12-24 | 2017-07-04 | 奥迪股份公司 | For the motor and motor vehicle of motor vehicle |
| CN106921271B (en) * | 2015-12-24 | 2020-07-07 | 奥迪股份公司 | Motor for motor vehicle and motor vehicle |
| CN107126629A (en) * | 2017-04-25 | 2017-09-05 | 浙江和也健康科技有限公司 | A kind of Gyromagnetic machine structure |
| CN107710574A (en) * | 2017-09-07 | 2018-02-16 | 刘远芳 | Impulse generator and corresponding passive proportion control device and its adjusting method |
| CN107710574B (en) * | 2017-09-07 | 2021-03-19 | 刘远芳 | Pulse generator and corresponding passive proportional control device and adjusting method thereof |
| CN110022021A (en) * | 2019-03-28 | 2019-07-16 | 珠海凯邦电机制造有限公司 | Plastic packaging stator, plastic packaging motor and method for winding |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20080116 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |