CN101834510A - Moving-magnet type transverse flux linear oscillatory motor for direct-drive compressor - Google Patents
Moving-magnet type transverse flux linear oscillatory motor for direct-drive compressor Download PDFInfo
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- CN101834510A CN101834510A CN 201010179601 CN201010179601A CN101834510A CN 101834510 A CN101834510 A CN 101834510A CN 201010179601 CN201010179601 CN 201010179601 CN 201010179601 A CN201010179601 A CN 201010179601A CN 101834510 A CN101834510 A CN 101834510A
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Abstract
The invention discloses a moving-magnet type transverse flux linear oscillatory motor for a direct-drive compressor, which comprises a rotor component and stator components which are matched with each other. In the motor, a transverse magnetic circuit structure is adopted to ensure that the motion directions of a magnetic circuit and the motor are in a perpendicular relation, thus the internal and external stators of the motor can both adopt an internal and external stator structure of an ordinary electric rotating motor and are stacked up along an axial direction. The moving-magnet type transverse flux linear oscillatory motor has the advantages of convenient processing, higher efficiency, small magnetic resistance, smooth output force curve, and the like and is easy to realize high frequency reciprocating oscillation with high thrust and large amplitude.
Description
Technical field
The present invention relates to the vibrating motor field, be specifically related to a kind of oscillatory type linear motor that has permanent magnet.
Background technology
Linear type vibration motor can produce the high frequency linear reciprocating motion, can directly substitute existing " electric rotating machine+crank connecting shaft " drive system, thereby reduces power transmission loss, reduces noise, improves system effectiveness and reliability.Therefore, linear type vibration motor needing can be widely used in fields such as reciprocating occasion of high frequency such as compressor.
The permanent-magnet linear vibrating motor that is used for direct-drive compressor now adopts " C " type outer stator structure mostly, and Fig. 1 has provided the longitudinal sectional drawing of this structure.As shown in the figure, this linear type vibration motor mainly is made of following structure: stator winding, external stator core, spring, inner-stator iron core, permanent magnet, piston, permanent magnet support.Stator winding is embedded in the external stator core, is pie winding.External stator core is assembled by a lot of little stator core pieces, and the external stator punching that constitutes little iron core piece is " C " type (not seeing C font iron core among Fig. 1).Internal stator is a radial structure (as shown in Figure 2) tight inside but loose outside, and electric mover is made up of permanent magnet and non-magnetic conduction permanent magnet support.When feeding electric current in the stator winding, make the opposite magnetic pole of " C " type external stator punching left and right sides stator teeth polarization, the magnetic pole that permanent magnet pole and armature winding produce interacts, and produces electromagnetic push.Under the effect of electromagnetic force, mover is side-to-side movement vertically.After permanent magnet polarity on the mover was determined, direction of vibration was by the positive and negative decision of electric current in the winding.
Because the magnetic circuit of existing linear type vibration motor trend has determined internal stator must need to adopt radial structure tight inside but loose outside.And this kind structure closed assembly difficulty is big, and processing difficulties has increased processing cost.In addition, be the uniform rectangle silicon steel sheet of thickness owing to form the silicon steel sheet of internal stator, certainly exist the slit between each silicon steel sheet of internal stator excircle, thereby make magnetic resistance become big, cause electric efficiency to descend.
Summary of the invention
The invention provides a kind of moving-magnet type transverse flux linear oscillatory motor that is used for direct-drive compressor, adopt the transverse magnetic flux circuit, make magnetic circuit and motor movement direction be vertical relation, thereby the interior external stator of motor all can adopt outer stator structure in the common electric rotating machine, closed assembly vertically, difficulty of processing and processing cost have greatly been reduced, and the magnetic circuit effective rate of utilization is improved, overcome the shortcoming of existing linear type vibration motor, thereby provide a kind of easy to process, high thrust and high efficiency linear type vibration motor can be provided.
A kind of moving-magnet type transverse flux linear oscillatory motor that is used for direct-drive compressor comprises the mover component and the stator component that cooperatively interact, wherein,
Described mover component, by the permanent magnet support and be embedded in some N on the periphery of permanent magnet support, the permanent magnetic steel that the S utmost point is alternately arranged constitutes; Described stator component comprises inside and outside stator;
Described external stator is to be arranged vertically by the stator of two separation to form, wherein, the stator core of each stator is overrided to form vertically by stator punching, be evenly equipped with stator tooth and teeth groove on each sheet stator punching, the stator winding of each stator is embedded in the described teeth groove, and described stator winding is taked centralized winding; The stator core of described internal stator is overrided to form vertically by circular stator punching;
Described mover component is coaxial with stator component, and described mover component is between described internal stator and described external stator; The number of described permanent magnetic steel and the stator tooth of external stator is identical and the position is corresponding one by one.
The grooved of the teeth groove of described external stator is a semi-enclosed slot, and this grooved can reduce pulsation loss in iron core surface loss and the tooth, and makes effective air gap length less, thereby improves motor power factor.
The reversing stator winding of two stators series connection in the described external stator.Among the present invention, stator winding takes to concentrate winding, and the winding termination portion shortens, and the lead consumption reduces, and winding coil resistance reduces, and copper loss reduces, and electric efficiency improves, and cost reduces, and the manufacturing cycle shortens.
Described permanent magnet support is a non-magnet material, to reduce the energy loss that leaks and cause in magnetic field.
Described permanent magnetic steel is the tile structure, and radial magnetizing is convenient to assembling, and cost is low.
When taking moving-magnet type transverse flux linear oscillatory motor Driven Compressor of the present invention, with the radially coaxial successively from the inside to the outside setting along the cylindrical shape compression chamber in the outside of the cylindrical shape compression chamber of compressor of internal stator, cylinder type mover component and external stator, the extended end end of cylinder type mover component is connected with the axis of the piston in the cylindrical shape compression chamber.Be provided for the recovery spring and the sliding bearing that is used for the support piston axle of piston reset in cylindrical shape compression chamber inner carrier axle both sides.Sliding bearing is the linear slide bearing.Recovering spring is cylindric compression spring.During work, when coil of stator of motor passes to the alternating current of certain frequency, will produce the armature field of a double vibrations in the motor gas-gap.Permanent magnet produces electromagnetic push under the armature field effect, promote mover and compression spring double vibrations.At last, drive load running by linear electric motors output.The mutual differential concatenation of two stator winding of external stator forms single-phase winding coil, and being equipped with controller is may command vibration amplitude and frequency.
The invention has the beneficial effects as follows: based on the transverse flux motor principle, the new structure linear type vibration motor has been proposed, this motor stator core silicon steel sheet is closed assembly vertically, its processing mode and common electric rotating machine are identical, technology is simple and convenient, thereby solved existing structure internal stator closed assembly difficulty and owing to have the slit between each silicon steel sheet of internal stator excircle, made magnetic resistance become degradation problem under big, the electric efficiency.The reluctance force of this motor is little, and power output is level and smooth, can realize the reciprocating motion of high thrust large amplitude high frequency.
Description of drawings
Fig. 1 is for being applied to the linear type vibration motor structure longitudinal sectional drawing of compressor in the prior art.
Fig. 2 is the inner-stator iron core closed assembly schematic diagram of prior art cathetus vibrating motor.
Fig. 3 is the structural representation of moving-magnet type transverse flux linear oscillatory motor of the present invention.
Fig. 4 is the horizontal sectional drawing of moving-magnet type transverse flux linear oscillatory motor of the present invention.
Embodiment
Fig. 1 is for being applied to the longitudinal sectional drawing of the linear type vibration motor of compressor in the prior art.As shown in FIG., this linear type vibration motor mainly is made of following structure: stator winding 1, external stator core 2, spring 3, inner-stator iron core 7, permanent magnet 8, piston 13, permanent magnet support 14.Winding is embedded in the external stator core, is pie winding.External stator core is assembled by a lot of little stator core pieces, and the external stator punching that constitutes little iron core piece is " C " type (not seeing C font iron core among Fig. 1).Internal stator is a radial structure (as shown in Figure 2) tight inside but loose outside, and electric mover is made up of permanent magnet and non-magnetic conduction permanent magnet support.
Unlike the prior art, the invention provides the different moving-magnet type transverse flux linear oscillatory motor of structure.
Be illustrated in figure 3 as an embodiment of moving-magnet type transverse flux linear oscillatory motor of the present invention, this moving-magnet type transverse flux linear oscillatory motor comprises external stator 27, permanent magnet support 17, internal stator 20, permanent magnetic steel 24.
External stator 27 and internal stator 20 constitute the stator component of linear type vibration motor.External stator 27 is arranged by the stator shaft orientation of two separation and is formed, the stator core 23 of external stator is overrided to form vertically by stator punching, be evenly equipped with stator tooth and teeth groove 26 on each sheet stator punching, the stator winding 28 of external stator is embedded in the teeth groove 26 of stator core 23 of external stator, be centralized winding, two stator winding, 28 differential concatenations, the grooved of the teeth groove 26 of external stator is a semi-enclosed slot; The stator core of internal stator 20 is overrided to form vertically by circular stator punching.The processing of internal stator 20 and external stator 27 and laminate and all be similar to common electric rotating machine, technology is very convenient, and compares with existing structure shown in Figure 3, and this structure helps increasing the magnetic circuit area.
In order to realize cooperating of mover component and stator component, permanent magnet support 17 and external stator 27 are set, internal stator 20 is coaxial, permanent magnet support 17 is between external stator 27 and internal stator 20; Permanent magnetic steel 24 is identical with the number of the stator tooth of external stator 27, aligns one by one in the position, and is shown in Figure 4 as horizontal tangent plane of the present invention, and the N of 6 permanent magnetic steels 24, the S utmost point are alternately arranged, and every permanent magnetic steel 24 is all corresponding with the stator tooth of external stator 27.
For moving-magnet type transverse flux linear oscillatory motor of the present invention is applied in the compressor, an extended end end of permanent magnet support 17 is connected with the axis of the piston 18 in being located at compression chamber 19, and fixing by end hold-down nut 21.Can drive the axis of the piston 18 when like this, mover component moves and produce double vibrations to be compressed in the gas in the compression chamber 19 along axis.
Both sides at compression chamber 19 inner carrier axles 18 are provided with sliding bearing 15, and support piston axle 18 is only along axial-movement, and sliding bearing 15 is fixed together by jump ring 22 and compression chamber 19.
Also be provided with in the both sides of compression chamber 19 inner carrier axles 18 and recover spring 16, make in time to reset in the axis of the piston 18 double vibrationses.Be provided with the recovery spring pedestal in sliding bearing 15 both sides, with the fixing spring 16 that recovers.Recover spring 16 and be located at compression chamber 19 inside, can save the space, the compresses body is long-pending.Sliding bearing 15 adopts the linear slide bearing, recovers spring 16 and adopts cylindric compression spring.
During work, when coil of stator of motor passes to the alternating current of certain frequency, will produce the armature field of a double vibrations in the motor gas-gap.Permanent magnet produces electromagnetic push under the armature field effect, promote mover and compression spring double vibrations.The mutual differential concatenation of two stator winding of external stator forms single-phase winding coil, and being equipped with the single-phase voltage adjusting device is the may command vibration amplitude, also can be equipped with single-phase frequency converter and carry out variable voltage variable frequency control operation.
Moving-magnet type transverse flux linear oscillatory motor of the present invention is easy to process, and efficient is higher, and structure is comparatively compact and to have a reluctance force little, and the advantages such as power output curve smoothing are applicable to particularly refrigerating compressor for refrigerator of refrigerating field.
Claims (5)
1. a moving-magnet type transverse flux linear oscillatory motor that is used for direct-drive compressor comprises the mover component and the stator component that cooperatively interact, it is characterized in that:
Described mover component, by the permanent magnet support and be embedded in some N on the periphery of permanent magnet support, the permanent magnetic steel that the S utmost point is alternately arranged constitutes;
Described stator component comprises inside and outside stator; Described external stator is to be arranged vertically by the stator of two separation to form, wherein, the stator core of each stator is overrided to form vertically by stator punching, is evenly equipped with stator tooth and teeth groove on each sheet stator punching, and the stator winding of each stator is centralized winding and is embedded in the described teeth groove; The stator core of described internal stator is overrided to form vertically by circular stator punching;
Described mover component is coaxial with stator component, and described mover component is between described internal stator and described external stator; The number of described permanent magnetic steel and the stator tooth of described external stator is identical and the position is corresponding one by one.
2. moving-magnet type transverse flux linear oscillatory motor as claimed in claim 1 is characterized in that: the grooved of the teeth groove of described external stator is a semi-enclosed slot.
3. moving-magnet type transverse flux linear oscillatory motor as claimed in claim 1 is characterized in that: the reversing stator winding of two stators series connection in the described external stator.
4. moving-magnet type transverse flux linear oscillatory motor as claimed in claim 1 is characterized in that: described permanent magnet support is a non-magnet material.
5. moving-magnet type transverse flux linear oscillatory motor as claimed in claim 1 is characterized in that: described permanent magnetic steel is the tile structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 201010179601 CN101834510A (en) | 2010-05-21 | 2010-05-21 | Moving-magnet type transverse flux linear oscillatory motor for direct-drive compressor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010179601 CN101834510A (en) | 2010-05-21 | 2010-05-21 | Moving-magnet type transverse flux linear oscillatory motor for direct-drive compressor |
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| CN101834510A true CN101834510A (en) | 2010-09-15 |
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| CN 201010179601 Pending CN101834510A (en) | 2010-05-21 | 2010-05-21 | Moving-magnet type transverse flux linear oscillatory motor for direct-drive compressor |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8053944B2 (en) | 2010-03-15 | 2011-11-08 | Motor Excellence, Llc | Transverse and/or commutated flux systems configured to provide reduced flux leakage, hysteresis loss reduction, and phase matching |
| US8193679B2 (en) | 2008-11-03 | 2012-06-05 | Motor Excellence Llc | Polyphase transverse and/or commutated flux systems |
| US8222786B2 (en) | 2010-03-15 | 2012-07-17 | Motor Excellence Llc | Transverse and/or commutated flux systems having phase offset |
| CN102889192A (en) * | 2011-07-19 | 2013-01-23 | 中国科学院理化技术研究所 | Linear compressor driven by using moving magnetic type linear oscillation motor |
| US8395291B2 (en) | 2010-03-15 | 2013-03-12 | Electric Torque Machines, Inc. | Transverse and/or commutated flux systems for electric bicycles |
| CN103573575A (en) * | 2013-11-08 | 2014-02-12 | 严小克 | Magnetic piston pump |
| CN112165234A (en) * | 2020-09-16 | 2021-01-01 | 西安工业大学 | Three-rotor moving-magnet type permanent magnet linear oscillation motor |
| CN112994402A (en) * | 2021-02-28 | 2021-06-18 | 华中科技大学 | Stator split type moving iron core type permanent magnet linear oscillation motor |
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| US20060087180A1 (en) * | 2004-10-22 | 2006-04-27 | Korea Electrotechnology Research Institute | Bi-directional operating compressor using transverse flux linear motor |
| CN1917337A (en) * | 2006-08-09 | 2007-02-21 | 浙江大学 | Permanent magnet linear vibration motor |
| CN101240793A (en) * | 2008-03-14 | 2008-08-13 | 刘新春 | Linear motor double cylinder compression pump |
| CN201708678U (en) * | 2010-05-21 | 2011-01-12 | 浙江井田机电股份有限公司 | Moving magnet type transverse flux linear vibration motor for direct driving compressor |
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2010
- 2010-05-21 CN CN 201010179601 patent/CN101834510A/en active Pending
Patent Citations (4)
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| US20060087180A1 (en) * | 2004-10-22 | 2006-04-27 | Korea Electrotechnology Research Institute | Bi-directional operating compressor using transverse flux linear motor |
| CN1917337A (en) * | 2006-08-09 | 2007-02-21 | 浙江大学 | Permanent magnet linear vibration motor |
| CN101240793A (en) * | 2008-03-14 | 2008-08-13 | 刘新春 | Linear motor double cylinder compression pump |
| CN201708678U (en) * | 2010-05-21 | 2011-01-12 | 浙江井田机电股份有限公司 | Moving magnet type transverse flux linear vibration motor for direct driving compressor |
Non-Patent Citations (1)
| Title |
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| 《西安交通大学学报》 20070731 张金权 动磁直线电机驱动压缩机的建模与仿真 第820-824页 1-5 第41卷, 第7期 2 * |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8193679B2 (en) | 2008-11-03 | 2012-06-05 | Motor Excellence Llc | Polyphase transverse and/or commutated flux systems |
| US8242658B2 (en) | 2008-11-03 | 2012-08-14 | Electric Torque Machines Inc. | Transverse and/or commutated flux system rotor concepts |
| US8053944B2 (en) | 2010-03-15 | 2011-11-08 | Motor Excellence, Llc | Transverse and/or commutated flux systems configured to provide reduced flux leakage, hysteresis loss reduction, and phase matching |
| US8222786B2 (en) | 2010-03-15 | 2012-07-17 | Motor Excellence Llc | Transverse and/or commutated flux systems having phase offset |
| US8395291B2 (en) | 2010-03-15 | 2013-03-12 | Electric Torque Machines, Inc. | Transverse and/or commutated flux systems for electric bicycles |
| CN102889192A (en) * | 2011-07-19 | 2013-01-23 | 中国科学院理化技术研究所 | Linear compressor driven by using moving magnetic type linear oscillation motor |
| CN102889192B (en) * | 2011-07-19 | 2015-03-18 | 中国科学院理化技术研究所 | Linear compressor driven by using moving magnetic type linear oscillation motor |
| CN103573575A (en) * | 2013-11-08 | 2014-02-12 | 严小克 | Magnetic piston pump |
| CN103573575B (en) * | 2013-11-08 | 2016-11-23 | 曾秀卿 | Magnetic force piston-type pump |
| CN112165234A (en) * | 2020-09-16 | 2021-01-01 | 西安工业大学 | Three-rotor moving-magnet type permanent magnet linear oscillation motor |
| CN112994402A (en) * | 2021-02-28 | 2021-06-18 | 华中科技大学 | Stator split type moving iron core type permanent magnet linear oscillation motor |
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Application publication date: 20100915 |