CN100337387C - Noise-reducing structure of switched reluctance machine - Google Patents
Noise-reducing structure of switched reluctance machine Download PDFInfo
- Publication number
- CN100337387C CN100337387C CNB031094503A CN03109450A CN100337387C CN 100337387 C CN100337387 C CN 100337387C CN B031094503 A CNB031094503 A CN B031094503A CN 03109450 A CN03109450 A CN 03109450A CN 100337387 C CN100337387 C CN 100337387C
- Authority
- CN
- China
- Prior art keywords
- rotor
- mentioned
- stator
- sensor
- sensor disk
- 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.)
- Expired - Fee Related
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
Landscapes
- Control Of Electric Motors In General (AREA)
Abstract
The present invention relates to a noise reducing structure of a switch reluctance motor, wherein brackets (102) and (102') are combined at two sides of a stator (101); a rotor (103) can be rotatablely arranged in the stator; a rotating shaft (104) is fixedly pressed in the shaft hole of the rotor (103); a sensor circular disc (106) is arranged on a rotating shaft (105) at one side of the rotor (103); a printed circuit board (PCB)(107) is arranged in the bracket (102') which is opposite to the sensor circular disc (106); a sensor (108) for sensing the rotation of the sensor circular disc (106) is arranged on the PCB (107). On the basis of the structure of a switch reluctance motor, the sensor circular disc (106) also performs the function of adding a coasting body on the rotor (103). When the rotor (103) rotates, resonance frequency is changed, resonance vibration is reduced, and noise is reduced finally.
Description
Technical field
The present invention relates to a kind of switched reluctance machines (SRM:SWITCHED RELUCTANCE MOTOR), furtherly, then relate to a kind of reduction noise structure (NOISE REDUCTION STRUCTURE OF SWITCHED RELUCTANCE MOTOR) that can bring the switched reluctance machines of following effect: need not additionally to be provided for reducing the parts of motor noise, so can make the motor integral miniaturization.
Background technology
General switched reluctance machines is: utilize switching device control to the power supply that is wound on the coil supply on the multi phase stator, produce rotation torque (torque), by changing the excited state between rotor and the stator successively, can produce the positive direction rotation torque by magnetic attraction; When not changing specific excited state, can make stationary rotor on certain position; With maximum induction (inductance) be starting point, and the position of the input pulse signal that applies to switching device by control can produce mutually against revolving force, can control multiple driving, be widely used in need controlling party to electronic product on.
With reference to the accompanying drawings, the execution mode to above-mentioned switched reluctance machines carries out simple declaration.
Fig. 1 demonstrates the drawing in side sectional elevation of the structure of prior art switched reluctance machines.
The switched reluctance machines both sides according to certain intervals be provided with a pair of carriage 1,1 '; Above-mentioned carriage 1,1 ' between be provided with stator 2, said stator 2 is formed by stacking by steel plate; The inboard of said stator 2 is formed with a plurality of stator side teeth (teeth) (not demonstrating in the accompanying drawing) according to certain angle is outstanding, is wound with coil 3 respectively on the said stator side tooth.
In addition, the inboard of said stator 2 rotatably is inserted with rotor 4, and above-mentioned rotor 4 also is formed by stacking by steel plate; On the outer peripheral face of above-mentioned rotor 4, according to the outstanding a plurality of rotor-side teeth (not demonstrating in the accompanying drawing) that are formed with of certain angle.
In addition, the center of above-mentioned rotor 4 is formed with axis hole, has been pressed into rotating shaft 5 in the above-mentioned axis hole; The both ends of above-mentioned rotating shaft 5 are being supported by ball bearing (ball bearing) 6, above-mentioned ball bearing (ball bearing) 6 be fixed on above-mentioned carriage 1,1 ' the inboard.
In addition, be pressed on the rotating shaft 5 of above-mentioned rotor 4 one sides and be fixed with sensor disk (sensor disk) 7; The printed circuit board (PCB) (PCB) 8 that is fixed on above-mentioned carriage 1 ' inboard is provided with transducer (sensor) 9, and the sensor (sensor) 9 is used for the rotation of perception the sensor disk 7.
Above-mentioned prior art switched reluctance machines detects the position of rotor-side tooth by the sensor 9, and outgoing position detects pulse, and (magnet exciting coil 3 C) applies electric current, then can produce electromagnetic force Fr for A, B to three-phase to be carried in above-mentioned position probing pulse.
In addition, carry out producing electromagnetic force after the excitation to a certain electric current that applies mutually, carry out excitation to the adjacent electric current that applies mutually then, the rotor-side tooth of then above-mentioned rotor 4 produces the rotation torque according to the certain orientation rotation in order to reduce magnetic resistance; Change the excited state of each phase then according to said process successively, produce the actuating force of the above-mentioned rotor 4 of rotation.
But, above-mentioned prior art switched reluctance machines for excitation each mutually repeatedly in the process of On/Off (ON/OFF), torque ripple (TORQUE RIPPLE) phenomenon that electromagnetic force Fr reduces suddenly in the time of can occurring closing (OFF) electric current.Torque ripple makes stator produce vibration, shown in the coordinate diagram of Fig. 2, when each phase current is closed, periodically produces above-mentioned vibration, and above-mentioned vibration will become the major part of noise.
In addition, when above-mentioned switched reluctance machines used on wall-through type air conditioner, as shown in Figure 3, the indoor was provided with aerofoil fan 11; The outside is provided with turbine forced draft fan (turbo blower) 12; Suppose when said system is 3 degree of freedom rotary axis models, will produce torsional resonance frequency, the torsional resonance frequency of said system resonates with the noise that pulsation produces in the working range of motor, so the noise that vibration causes will be bigger than going back of design.
In addition, though can adjust the variation of above-mentioned resonance frequency by adjusting steadying effect torque value (J) and torsional rigid value (Kt) to a certain extent, the restriction in the design causes solving the bigger problem of real noise.
Summary of the invention
Main purpose of the present invention is the reduction noise structure that a kind of switched reluctance machines of the problem that solves above-mentioned prior art can be provided.
Another object of the present invention provides a kind of reduction noise structure that can bring the switched reluctance machines of following effect: reduce vibrating noise and produced simultaneously torsional vibration of shafting that torque ripple produces, thereby reduce because the overall noise of the motor that resonance causes.
The present invention also has the another one purpose to provide a kind of reduction noise structure that can bring the switched reluctance machines of following effect: reduce components number, reduce manufacturing cost; Reduce the overall volume of motor simultaneously.
In order to realize the foregoing invention purpose, the invention provides a kind of reduction noise structure of switched reluctance machines, its switched reluctance machines comprises a pair of carriage, stator, coil, rotor, sensor disk and transducer substantially.Above-mentioned a pair of carriage is arranged on the both sides of motor with keeping a determining deviation; Said stator is fixed on the inboard of above-mentioned carriage, and is made of cores pile in layers; Above-mentioned coil is wound on the stator side tooth that is formed on the said stator inboard; Above-mentioned rotor can be rotatably set in the inboard of said stator, is formed with the rotor-side tooth on the outer peripheral face of above-mentioned rotor, and above-mentioned rotor is made of cores pile in layers; The sensor disk is fixed on a side of above-mentioned rotor; The sensor is arranged on the printed circuit board (PCB) (PCB) of the inboard that is fixed on above-mentioned carriage, is used for the rotation of detecting sensor disk; It is characterized in that: the sensor disk has extra fine quality, becomes the coasting body that appends of resonance frequency for a change.
Wherein, the sensor disk is the thick thin all around ducted bodies of central authorities, and the edge of the sensor disk is formed with a plurality of ledges equally spacedly, and above-mentioned ledge is used for the position of the sensor rotor.
Therefore, in the reduction noise structure of switched reluctance machines of the present invention, be provided with rotor in the inboard of stator; In the axis hole of above-mentioned rotor, be pressed into and be fixed with rotating shaft; Side at above-mentioned rotor is provided with sensor disk; The sensor disk position vis-a-vis is provided with transducer.For switched reluctance machines with said structure, make the sensor disk become to have the coasting body that appends of extra fine quality when rotor rotates, to change resonance frequency by appending coasting body, reduce resonance, reduce noise.
In addition,, make the sensor disk play the effect of appending coasting body, need not additionally to be provided for reducing the parts of motor noise, so can make the motor integral miniaturization owing to need not additionally to be provided with to append parts are set.
Description of drawings
Fig. 1 demonstrates the drawing in side sectional elevation of the structure of prior art switched reluctance machines;
Fig. 2 demonstrates the moment of torsion coordinate diagram of the rotation generation of prior art rotor;
Fig. 3 demonstrates the structure chart of the kinetic characteristic of prior art motor;
Fig. 4 demonstrates the sectional arrangement drawing that the present invention has the switched reluctance machines that reduces the noise structure;
Fig. 5 demonstrates the front elevation that sensor disk of the present invention appends coasting body;
Fig. 6 demonstrates the plane graph of Fig. 5;
Fig. 7 demonstrates the A-A ' incision profile of Fig. 6.
The critical piece description of reference numerals
100: coil 101: stator
102,102 ': carriage 103: rotor
104: rotating shaft 106: sensor disk
107: printed circuit board (PCB) (PCB) 108: transducer
Embodiment
Illustrated embodiment is elaborated to the switched reluctance machines with reduction noise structure of the present invention with reference to the accompanying drawings.
Fig. 4 demonstrates the sectional arrangement drawing that the present invention has the switched reluctance machines that reduces the noise structure.
It is basic identical that the present invention has the switched reluctance machines structure and the prior art that reduce the noise structure.
That is to say, the both sides that are wound with the stator 101 of coil 100 be combined with carriage 102,102 '; The inboard of said stator 101 rotatably is inserted with rotor 103; Be inserted with rotating shaft 104 in the axis hole that in above-mentioned rotor 103, is formed centrally; The both ends of above-mentioned rotating shaft 104 be bonded to above-mentioned carriage 102,102 ' on ball bearing 105 supporting.
In addition, in a side of above-mentioned rotor 103, sensor disk 106 is pressed into and is fixed on the above-mentioned rotating shaft 104; Be fixed on above-mentioned carriage 102 ' the printed circuit board (PCB) (PCB) 107 of inboard be provided with the transducer 108 of the rotation that is used for perception the sensor disk 106.
Wherein, the sensor disk 106 of the present invention has extra fine quality, can play the effect that above-mentioned rotor 103 is appended coasting body.
Fig. 5 demonstrates the front elevation that sensor disk of the present invention appends coasting body.Fig. 6 demonstrates the plane graph of Fig. 5.Fig. 7 demonstrates the A-A ' incision profile of Fig. 6.
To shown in Figure 7, the sensor disk 106 is the central thick thin all around ducted bodies with certain mass, plays the effect of appending coasting body as Fig. 5.The outer ledge of the sensor disk 106 is formed with ledge 111, and the sensor 108 can perception rotor rotated 103 positions by above-mentioned ledge 111.
The course of work and prior art that the present invention has the switched reluctance machines that reduces the noise structure are similar.
Detect the position of rotor-side tooth by the sensor 107, outgoing position detects pulse, and (magnet exciting coil 100 C) applies electric current, then produces electromagnetic force Fr for A, B to three-phase in above-mentioned position probing pulse; Apply electric current mutually successively and carry out excitation, the rotor-side tooth of then above-mentioned rotor 103 produces rotation torque along folk prescription to rotation in order to reduce magnetic resistance to each; As mentioned above, change the excited state of each phase successively, produce the actuating force of rotor 103 rotations; When at this moment above-mentioned rotor 103 was rotated, the sensor disk 106 was with 103 rotations of above-mentioned rotor, the position that the sensor 108 can the above-mentioned rotor 103 of perception; Because the sensor disk 106 has extra fine quality, also play the effect of appending coasting body of appending on above-mentioned rotor 103 simultaneously,, finally reduced noise by changing resonance frequency.
Claims (1)
1, a kind of reduction noise structure of switched reluctance machines, its reluctance motor comprises a pair of carriage, stator, coil, rotor, sensor disk and transducer; Above-mentioned a pair of carriage is arranged on the both sides of motor with keeping a determining deviation; Said stator is fixed on the inboard of above-mentioned carriage, and is made of cores pile in layers; Above-mentioned coil is wound on the stator side tooth that is formed on the said stator inboard; Above-mentioned rotor can be rotatably set in the inboard of said stator, is formed with the rotor-side tooth on the outer peripheral face of above-mentioned rotor, and above-mentioned rotor is made of cores pile in layers; The sensor disk is fixed on a side of above-mentioned rotor; The sensor is arranged on the printed circuit board (PCB) of the inboard that is fixed on above-mentioned carriage, is used for the rotation of detecting sensor disk; It is characterized in that:
The sensor disk is the thick thin all around ducted bodies of central authorities, as the coasting body that appends that changes resonance frequency;
The edge of the sensor disk is formed with a plurality of ledges equally spacedly, and above-mentioned ledge is used for the position of the above-mentioned rotor of perception.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031094503A CN100337387C (en) | 2003-04-11 | 2003-04-11 | Noise-reducing structure of switched reluctance machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031094503A CN100337387C (en) | 2003-04-11 | 2003-04-11 | Noise-reducing structure of switched reluctance machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1536745A CN1536745A (en) | 2004-10-13 |
| CN100337387C true CN100337387C (en) | 2007-09-12 |
Family
ID=34319343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031094503A Expired - Fee Related CN100337387C (en) | 2003-04-11 | 2003-04-11 | Noise-reducing structure of switched reluctance machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100337387C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103151880A (en) * | 2013-02-02 | 2013-06-12 | 宋社民 | Temperature rise controllable type switch reluctance motor |
| CN104897486B (en) * | 2015-05-20 | 2017-12-12 | 西北工业大学 | A kind of electromagnetic type split-Hopkinson torsional bar loading device |
| CN105024514A (en) * | 2015-06-30 | 2015-11-04 | 安徽博隆节能电器有限公司 | High-efficiency switch reluctance machine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4142993A1 (en) * | 1991-12-24 | 1993-07-01 | Teves Gmbh Alfred | Electric motor driving radial force loads, e.g. pumps and compressors - has disk-shaped vibration absorber inserted on rotor shaft at back side of motor case |
| JPH10201195A (en) * | 1997-01-10 | 1998-07-31 | Nippon Electric Ind Co Ltd | Switched reluctance motor |
| CN2418613Y (en) * | 2000-05-08 | 2001-02-07 | 左恒 | DC. Permanent-magnet slot-free and brush-free low-speed motor for electric vehicles |
-
2003
- 2003-04-11 CN CNB031094503A patent/CN100337387C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4142993A1 (en) * | 1991-12-24 | 1993-07-01 | Teves Gmbh Alfred | Electric motor driving radial force loads, e.g. pumps and compressors - has disk-shaped vibration absorber inserted on rotor shaft at back side of motor case |
| JPH10201195A (en) * | 1997-01-10 | 1998-07-31 | Nippon Electric Ind Co Ltd | Switched reluctance motor |
| CN2418613Y (en) * | 2000-05-08 | 2001-02-07 | 左恒 | DC. Permanent-magnet slot-free and brush-free low-speed motor for electric vehicles |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1536745A (en) | 2004-10-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Chen et al. | Vibration of PM brushless machines having a fractional number of slots per pole | |
| US7385328B2 (en) | Cogging reduction in permanent magnet machines | |
| CN102281027B (en) | Motor controlling device | |
| US20050140244A1 (en) | Axial gap electronic motor | |
| Pollock et al. | Comparison of the acoustic noise of a flux switching and a switched reluctance drive | |
| JP2002262534A5 (en) | ||
| CN1619921A (en) | Motor built-in roller | |
| CN107797488B (en) | A kind of displacement control system and its control method, mobile terminal | |
| KR100739207B1 (en) | Vibrator motor for Brushless Direct Current | |
| US9793844B2 (en) | Permanent magnet motor controller | |
| CN100337387C (en) | Noise-reducing structure of switched reluctance machine | |
| US20080018208A1 (en) | Stepping Motor | |
| JP4645171B2 (en) | DC brushless motor device and turbo molecular pump | |
| JP2006109611A (en) | Composite three-phase hybrid dynamo-electric machine | |
| CN1536744A (en) | Noise-reducing structure of switched reluctance machine | |
| JP4491903B2 (en) | Blower | |
| Murthy et al. | Minimization of torque pulsations in a trapezoidal back-EMF permanent magnet brushless DC motor | |
| CN1315246C (en) | Heat radiator and its motor structure | |
| KR100531807B1 (en) | Noise reduction structure of switched reluctance motor | |
| JP2005318792A (en) | Motor, blower, compressor and air conditioner | |
| JP3125036B2 (en) | Method and apparatus for detecting mover position of synchronous motor | |
| JP2001304121A (en) | Motor compressor | |
| JPH0775321A (en) | Pm type stepping motor | |
| Chen et al. | Investigation of electromagnetic vibration of permanent magnet brushless machines | |
| CN1702946A (en) | Magnetization pattern of rotor magnet for stepping motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070912 |