CN101858325B - Direct-driving compressor of movable magnet type - Google Patents
Direct-driving compressor of movable magnet type Download PDFInfo
- Publication number
- CN101858325B CN101858325B CN2010101795737A CN201010179573A CN101858325B CN 101858325 B CN101858325 B CN 101858325B CN 2010101795737 A CN2010101795737 A CN 2010101795737A CN 201010179573 A CN201010179573 A CN 201010179573A CN 101858325 B CN101858325 B CN 101858325B
- Authority
- CN
- China
- Prior art keywords
- stator
- direct
- piston
- magnet type
- movable magnet
- 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
Landscapes
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Compressor (AREA)
Abstract
The invention discloses a direct-driving compressor of a movable magnet type, comprising a compression cavity, a piston, a piston shaft and a motor. The piston and the piston shaft are arranged in the compression cavity and driven by the motor to reciprocate in the compression cavity, the motor comprises a motor part and a stator part which are mutually matched, adopts a transversal magnetic circuit structure so that the motion directions of the magnetic circuit and the motor are in a perpendicular direction, and an inner stator and an outer stator of the motor can adopt the structures of an inner stator and an outer stator of a common rotary motor and are stacked along the axial direction. The direct-driving compressor of the movable magnet type has the advantages of convenient processing, higher efficiency, compacter structure, little magnetic resistance, smooth output curve, and the like and is very suitable to be used in the refrigeration field, especially suitable to be used as refrigeration compressor a refrigerator.
Description
Technical field
The present invention relates to the direct-drive compressor field, be specifically related to the moving magnetic direct-drive compressor of integral type.
Background technique
Linear compressor does not exist motor rotatablely moved and changes the reciprocating switching mechanism of piston linear into; But by the to-and-fro motion of the direct driven plunger high speed of linear electric motor; Its stroke and top dead center are by program control; Thereby the reduction power transmission loss improves system effectiveness and reliability, and can make compressor arrangement compact more.Therefore, direct-drive compressor becomes one of research focus at compressor field.
Existing direct-drive compressor comprises cylinder body, piston and cylinder cap, in cylinder body, form a compression chamber, but piston is set at to-and-fro motion in the compression chamber.The difference of the drive unit that moves back and forth according to driven plunger, direct-drive compressor is divided into MD moving coil, moving-iron type and three kinds of structure types of moving-magnetic type.Moving-coil structure mover light weight, resonant frequency is high, but lead such as is prone to pull apart at problem when the high frequency to-and-fro motion, and pushing force density is low, is not suitable for compressor field.Moving-iron type structure pushing force density is high, but because the mover quality is higher, causes resonant frequency low, the less medium-high frequency direct-drive compressor that is used for.Advantages such as the moving-magnetic type structure then combines the above two advantage, has the mover light weight, and thrust is big.Along with the development of high performance permanent magnetic materials, can under the situation of using less permanent-magnet material, produce more high thrust.Therefore the moving-magnetic type structure is the main developing direction of high-performance direct-drive compressor.
Existing direct-driving compressor of movable magnet type adopts " C " type outer stator structure mostly, and is connected on the piston by the support that is placed with permanent magnetic steel, drives piston and carries out straight reciprocating motion.Fig. 1 is the existing structure longitudinal sectional drawing.Like Fig. 1 and shown in Figure 2, the direct-drive compressor of prior art is made up of following structure mostly: staor winding, external stator core, spring, outlet valve, gas outlet valve spring, Aspirating valves, inner-stator iron core, permanent magnet, sucking pipe, compression chamber, suction and discharge cavity, the mouth of pipe of giving vent to anger, piston, permanent magnet support.Winding is embedded in the external stator core, is pie winding.External stator core is assembled by many little stator iron core pieces, and the external stator punching that constitutes little iron core piece is " C " type.The mover of motor is made up of the permanent magnet support that permanent magnet and non-magnet material constitute, and inner stator is a radial structure (as shown in Figure 3) tight inside but loose outside.
When feeding electric current in the 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 confirmed, direction of vibration was by the positive and negative decision of electric current in the winding.
Because the magnetic circuit of existing direct-drive compressor trend has determined inner 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.And owing to form the silicon steel plate of inner stator is the uniform rectangle silicon steel plate of thickness, certainly exists the slit between each silicon steel plate of inner stator excircle, thereby makes magnetic resistance become big, causes electric efficiency to descend.In addition, the electric mover supported spring is positioned at the end, makes that the compressor overall axial length is elongated, and volume increases.
Summary of the invention
The invention provides a kind of direct-driving compressor of movable magnet type, adopt the transverse magnetic line structure, 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 is easy to process vertically, can provide high thrust and efficient high; Overcome the shortcoming of existing direct-drive compressor, thereby solved the problems of the prior art.
A kind of direct-driving compressor of movable magnet type comprises compression chamber, is positioned at the piston and the piston shaft of compression chamber, wherein, drives the motor that described piston and piston shaft move back and forth and comprise mover component and the stator component that cooperatively interacts in compression chamber.
Described mover component, by the permanent magnet support 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, the end of described mover component is connected with piston shaft;
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 iron core of each stator is overrided to form by stator punching vertically; Be evenly equipped with stator tooth and teeth groove on each sheet stator punching, the staor winding of each stator is embedded in the described teeth groove, and described staor winding is taked centralized winding; The stator iron core of described inner stator is overrided to form by circular stator punching vertically;
Described mover component is coaxial with stator component, and described mover component is between described inner stator and 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;
Also be provided with recovery springs that is used for piston reset and the sliding bearing that is used for the support piston axle in described piston shaft both sides.
Inner stator, mover component and external stator are positioned at the compression chamber outside, and along the radially coaxial successively from the inside to the outside setting of tubular compression chamber, the extended end of mover component (end of mover component) is connected with the interior piston shaft of compression chamber.
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, staor 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.
Described sliding bearing is the linear slide bearing, and the fitting piston axle uses, and surface friction drag is little.
Described sliding bearing is connected with compression chamber through jump ring, and is easy for installation.
Described recovery springs is cylindric pressure spring, and it is simple in structure, and is easily manufactured, and can satisfy the requirement of the present invention to resiliently deformable and recovery.
The working principle of direct-driving compressor of movable magnet type of the present invention is following:
During work, when the staor winding of motor passes to the Ac 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 pressure spring double vibrations, thereby make compressor operating.The mutual differential concatenation of two staor winding of external stator forms single-phase winding coil, and being equipped with the single-phase voltage controlling device is the may command vibration amplitude, also can be equipped with single-phase frequency variator and carry out variable voltage variable frequency control operation.
The invention has the beneficial effects as follows:
In the compressor of the present invention; The motor that driven plunger and piston shaft move back and forth in compression chamber; Adopt the transverse magnetic line structure, 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 has been simplified the electric machine iron core installation vertically; The silicon steel plate of its stator iron core is closed assembly vertically; Its processing mode and common electric rotating machine are identical; Technology is simple and convenient, has greatly reduced difficulty of processing and processing cost, and makes the effective rate of utilization of magnetic circuit improve; Thereby solved existing structure inner stator closed assembly difficulty and owing to have the slit between each silicon steel plate of inner stator excircle, made magnetic resistance become degradation problem under big, the electric efficiency; In addition, recovery springs is placed and compression chamber inside, effectively utilized the inside cavity space, make the compressor volume compact more.Compressor reluctance force of the present invention is little, and ouput force is level and smooth, can realize the to-and-fro motion of high thrust large amplitude high frequency.
Description of drawings
Fig. 1 is existing direct-driving compressor of movable magnet type structure longitudinal sectional drawing;
Fig. 2 is existing direct-driving compressor of movable magnet type structure transverse cross-sectional view;
Fig. 3 is that the inner-stator iron core structure of existing structure laterally reaches vertical schematic representation;
Fig. 4 is the structural representation of direct-driving compressor of movable magnet type of the present invention;
Fig. 5 is the horizontal sectional drawing of direct-driving compressor of movable magnet type of the present invention;
Fig. 6 is the structural representation of permanent magnet support in the direct-driving compressor of movable magnet type of the present invention;
Fig. 7 is the structural representation of sliding bearing in the direct-driving compressor of movable magnet type of the present invention.
Embodiment
Specify the present invention below in conjunction with accompanying drawing and embodiment, but the present invention is not limited to this.
Like Fig. 1 and shown in Figure 2, the direct-drive compressor of prior art comprises: staor winding 1, external stator core 2, spring 3, outlet valve 4, gas outlet valve spring 5, Aspirating valves 6, inner-stator iron core 7, permanent magnet 8, sucking pipe 9, compression chamber 10, suction and discharge cavity 11, the mouth of pipe 12 of giving vent to anger, piston 13, permanent magnet support 14.Staor winding 1 is embedded in the external stator core 2, is pie winding.External stator core 2 is assembled by many little stator iron core pieces, and the external stator punching that constitutes little iron core piece is " C " type.The mover of motor is made up of the permanent magnet support that permanent magnet and non-magnet material constitute, and inner stator is a radial structure (as shown in Figure 3) tight inside but loose outside.
Different with existing technology, the invention provides the different direct-drive compressor of structure.
Be illustrated in figure 4 as an embodiment of direct-driving compressor of movable magnet type of the present invention, this direct-driving compressor of movable magnet type comprises: the stator iron core 23 of the staor winding 28 of external stator 27, external stator, sliding bearing 15, recovery springs 16, permanent magnet support 17, piston shaft 18, compression chamber 19, inner stator 20, end set screw nut 21, suction and discharge cavity 22, external stator, permanent magnetic steel 24.
Wherein, compression chamber 19 inside of tubular are provided with piston shaft 18, also are provided with recovery springs 16 that is used to reset and the sliding bearing 15 that is used for support piston axle 18 in the both sides of piston shaft 18.Sliding bearing 15 is connected with compression chamber 19 through jump ring and is fixed together; Outside compression chamber 19; Along radially coaxial successively from the inside to the outside inner stator 20, permanent magnet support 17 and the external stator 27 of being provided with of the compression chamber 19 of tubular, permanent magnet support 17 extended end ends are connected with piston shaft 18 through end set screw nut 21 and are fixed together.
Fig. 6 has provided the structure of permanent magnet support 17.At permanent magnet support 17 first-class 6 tile permanent magnetic steels 24, the alternately arrangement of N, the S utmost point, the permanent magnet supports 17 and permanent magnetic steel 24 formation mover components of being spaced.Permanent magnet support 17 is a cylinder type, adopts non-magnet material, and permanent magnetic steel 24 adopts the tile structure.
Fig. 7 has provided the structural representation of sliding bearing 15, and sliding bearing 15 both sides are recovery springs base 25, are used for fixing recovery springs 16.Recovery springs 16 is located at compression chamber 19 inside, can save the space, and the compresses body is long-pending.Sliding bearing 15 adopts the linear slide bearing, and recovery springs 16 adopts cylindric pressure spring.
Mover component and piston shaft 18 promote piston and in compression chamber 19, carry out double vibrations along sliding bearing 15 side-to-side movements, thereby make the gas in the compression chamber 19 get into suction and discharge cavity 22, accomplish the compressor gas compression function.
The formation the action of a magnetic field that matches with mover component comprises external stator 27 and inner stator 20 with driven plunger axle 18 reciprocating stator components.External stator 27 is arranged by the stator shaft orientation of two separation and is formed; The stator iron core 23 of external stator is overrided to form by stator punching vertically; Be evenly equipped with stator tooth and teeth groove 26 on each sheet stator punching, the staor winding 28 of external stator is embedded in the teeth groove 26 of stator iron core 23 of external stator, is centralized winding; Two staor winding, 28 differential concatenations, the grooved of the teeth groove 26 of external stator 27 is a semi-enclosed slot; The stator iron core of inner stator 20 is overrided to form by circular stator punching vertically.Inner stator 20 is decided 27 processing and laminates all to be similar to common electric rotating machine with outer, and technology is very convenient, and compares with existing structure shown in Figure 3, and this structure helps increasing the magnetic circuit area.
Shown in Figure 5 like horizontal sectional drawing of the present invention, permanent magnet support 17 and external stator 27, inner stator 20 are coaxial, and permanent magnet support 17 is between external stator 27 and inner 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; The N of 6 permanent magnetic steels 24, the S utmost point are alternately arranged, and every permanent magnetic steel is all corresponding with the stator tooth of external stator 27.
During work, when coil of stator of motor passes to the Ac 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 pressure spring double vibrations.The mutual differential concatenation of two staor winding of external stator forms single-phase winding coil, and being equipped with the single-phase voltage controlling device is the may command vibration amplitude, also can be equipped with single-phase frequency variator and carry out variable voltage variable frequency control operation.
Direct-driving compressor of movable magnet type of the present invention is easy to process, and efficient is higher, and structure is comparatively compact and to have a reluctance force little, advantages such as ouput force curve smoothing, be applicable to refrigerating field particularly refrigerator use refrigeration compressor.
Claims (7)
1. direct-driving compressor of movable magnet type; Comprise compression chamber, be positioned at the piston and the piston shaft of compression chamber, it is characterized in that, drive the motor that described piston and piston shaft move back and forth and comprise mover component and the stator component that cooperatively interacts in compression chamber; Wherein
Described mover component, by the permanent magnet support 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, the end of described mover component is connected with piston shaft;
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 iron core of each stator is overrided to form by stator punching vertically, is evenly equipped with stator tooth and teeth groove on each sheet stator punching, and the staor winding of each stator is centralized winding and is embedded in the described teeth groove; The stator iron core of described inner stator is overrided to form by circular stator punching vertically;
Described mover component is coaxial with stator component, and described mover component is between described inner 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, and described permanent magnetic steel is the tile structure;
Also be provided with recovery springs that is used for piston reset and the sliding bearing that is used for the support piston axle in the both sides of described piston shaft.
2. direct-driving compressor of movable magnet type 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. direct-driving compressor of movable magnet type as claimed in claim 1 is characterized in that: the reversing stator winding of two stators series connection in the described external stator.
4. direct-driving compressor of movable magnet type as claimed in claim 1 is characterized in that: described permanent magnet support is a non-magnet material.
5. direct-driving compressor of movable magnet type as claimed in claim 1 is characterized in that: described sliding bearing is the linear slide bearing.
6. like claim 1 or 5 described direct-driving compressor of movable magnet type, it is characterized in that: described sliding bearing is connected with compression chamber through jump ring.
7. direct-driving compressor of movable magnet type as claimed in claim 1 is characterized in that: described recovery springs is cylindric pressure spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101795737A CN101858325B (en) | 2010-05-21 | 2010-05-21 | Direct-driving compressor of movable magnet type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101795737A CN101858325B (en) | 2010-05-21 | 2010-05-21 | Direct-driving compressor of movable magnet type |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101858325A CN101858325A (en) | 2010-10-13 |
| CN101858325B true CN101858325B (en) | 2012-08-29 |
Family
ID=42944427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101795737A Expired - Fee Related CN101858325B (en) | 2010-05-21 | 2010-05-21 | Direct-driving compressor of movable magnet type |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101858325B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101982929B (en) * | 2010-10-28 | 2012-07-11 | 哈尔滨工业大学 | High dynamic and short stroke linear oscillating 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 |
| CN103790799A (en) * | 2012-11-02 | 2014-05-14 | 海尔集团公司 | Linear compressor |
| CN111322217B (en) * | 2020-04-26 | 2024-02-09 | 山东理工大学 | Double-acting electromagnetic direct-drive linear servo pump |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN201110257Y (en) * | 2007-11-02 | 2008-09-03 | 华中科技大学 | Movable magnetic vibrator |
| CN201705609U (en) * | 2010-05-21 | 2011-01-12 | 浙江井田机电股份有限公司 | Moving-magnetic type directly-driven compressor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100603943B1 (en) * | 2004-10-22 | 2006-07-25 | 한국전기연구원 | Bi-direction operating linear compressor using transverse flux linear motor |
-
2010
- 2010-05-21 CN CN2010101795737A patent/CN101858325B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1917337A (en) * | 2006-08-09 | 2007-02-21 | 浙江大学 | Permanent magnet linear vibration motor |
| CN201110257Y (en) * | 2007-11-02 | 2008-09-03 | 华中科技大学 | Movable magnetic vibrator |
| CN101240793A (en) * | 2008-03-14 | 2008-08-13 | 刘新春 | Linear motor double cylinder compression pump |
| CN201705609U (en) * | 2010-05-21 | 2011-01-12 | 浙江井田机电股份有限公司 | Moving-magnetic type directly-driven compressor |
Non-Patent Citations (1)
| Title |
|---|
| 张金权，畅云峰.动磁直线电机驱动压缩机的建模与仿真.《西安交通大学学报》.2007,第41卷(第7期),第821页. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101858325A (en) | 2010-10-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102985692B (en) | Linearkompressor | |
| CN101834510A (en) | Moving-magnet type transverse flux linear oscillatory motor for direct-drive compressor | |
| CN211481129U (en) | Transverse flux type reciprocating motor and reciprocating compressor having the same | |
| JP2015010608A (en) | Linear compressor | |
| CN101858325B (en) | Direct-driving compressor of movable magnet type | |
| CN103967739B (en) | A kind of electromagnetic plunge pump | |
| CN102953956B (en) | Compressor driven by brushless coreless linear motor | |
| CN102017396B (en) | Linear motor and reciprocating compressor employing the same | |
| CN102966512B (en) | A kind of annular compressor | |
| CN201705609U (en) | Moving-magnetic type directly-driven compressor | |
| KR101513611B1 (en) | Reciprocating Compressor | |
| CN105332890A (en) | Cylindrical magnetic-suspension permanent magnet linear compressor | |
| CN202284529U (en) | Energy-saving compressor and pump device | |
| CN111089042B (en) | Moving-coil linear compressor adopting double-coil structure | |
| EP3261226A1 (en) | Reciprocating motor and reciprocating compressor having the same | |
| CN102005891B (en) | Single-phase alternating current permanent magnet linear disk type oscillating motor | |
| CN102889192B (en) | Linear compressor driven by using moving magnetic type linear oscillation motor | |
| CN201708678U (en) | Moving magnet type transverse flux linear vibration motor for direct driving compressor | |
| CN101737300B (en) | Direct-drive compressor with permanent magnet stored energy buffering device | |
| CN101835981B (en) | Linear compressor | |
| CN202250707U (en) | Annular compressor | |
| CN105332891A (en) | Direct-drive type direct magnetic suspension linear compressor | |
| CN210564952U (en) | Permanent magnet piston compressor | |
| CN107742967A (en) | Magneto half-wave oxygen increasing pump | |
| CN205154536U (en) | Drum type magnetic suspension permanent magnetism straight line compressor |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120829 Termination date: 20170521 |