CN207926410U - A kind of moving-magnetic type linear motor for compressor - Google Patents
A kind of moving-magnetic type linear motor for compressor Download PDFInfo
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- CN207926410U CN207926410U CN201820262164.5U CN201820262164U CN207926410U CN 207926410 U CN207926410 U CN 207926410U CN 201820262164 U CN201820262164 U CN 201820262164U CN 207926410 U CN207926410 U CN 207926410U
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- permanent magnet
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- moving
- linear motor
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Abstract
The utility model discloses a kind of moving-magnetic type linear motors for compressor, including inner stator, inside set the external stator of hot-wire coil, flat spring, permanent magnet mechanism, step connector and attachment screw, the permanent magnet mechanism includes tubular support frame and permanent magnet, the path section of the step connector passes perpendicularly through the framework through-hole that the support frame bottom centre position is equipped with, the outer end side of the major diameter section of the step connector is bonded setting with the flat spring, the attachment screw sequentially passes through the centre bore that the flat spring is equipped with and the connection through-hole is fixedly connected with the compression piston of compressor；The utility model increases stable connection by the setting of step connector, fixinig plate, air gap flux density is evenly distributed size stabilization, and the linearisation of motor thrust is high, and motor specific thrust is big, also reduce motor size, and the utility model also has the advantages that save that subtract consumption efficient.
Description
Technical field
The utility model is to be related to a kind of linear motor, is to be related to a kind of moving-magnetic linear for compressor specifically
Motor belongs to technical field of refrigeration equipment.
Background technology
Compressor (compressor) is a kind of driven fluid machinery that low-pressure gas is promoted to high pressure gas, pressure
Compression type refrigerating cycle is one of the major way of refrigeration, is had a wide range of applications in refrigerator, freezing and refrigeration and air-conditioning system, because
This compressor is compared to the heart of refrigeration system.Linear compressor (LYR) is exactly a kind of ideal compressor type, it is not present
The rotary motion of motor is changed into the switching mechanism of piston linear reciprocating motion, is transported by linear motor direct drive piston
Dynamic, stroke and stop are controlled by program or electromagnetic force, so as to keep the compact-sized of compressor, efficient, long lifespan special
It is not to be widely used in the refrigeration systems such as refrigerator and fridge-freezer.Magneto is moved using straight line, with traditional electric rotating
Machine is compared, and is had the characteristics that efficient, easy to control；Compared with motive loop permanent magnetic linear electromotor, move magneto have it is simple in structure,
The advantages that at low cost, long lifespan.
Although linear compressor has above-mentioned many merits, there is shortcoming in structure, gives design research and development band
Following challenge is carried out：1. the non-linear effects of gas force are larger, it is not easy to realize the linearisation of motor thrust, motor specific thrust is not
Foot, influences the raising of efficiency；2. piston stroke control is more difficult, clearance volume and operational efficiency are influenced；3. the gas of linear motor
Gap uniformity requirement is stringent, and non-uniform air-gap will cause additional lateral force, leads to the friction between piston and cylinder and branch
The friction and wear of support part position.For these reasons, people thirst for a kind of compact-sized, stable connection of exploitation, air-gap field point
Cloth uniformly and air gap flux density size distribution stabilization the moving-magnetic type linear motor for compressor, to improve the line of motor thrust
Property, increase motor specific thrust, improve electric efficiency, moreover it is possible to meet use need of the people to reduction air gap, diminution motor size
It asks.
Utility model content
In view of the above-mentioned problems existing in the prior art and demand, the purpose of this utility model be to provide it is a kind of it is compact-sized,
Stable connection, air-gap field are evenly distributed the moving-magnetic type linear motor for compressor stablized with air gap flux density size distribution,
To improve the linearisation of motor thrust, increase motor specific thrust, improve electric efficiency, moreover it is possible to meet people to reduce air gap,
Reduce the use demand of motor size.
To achieve the above object, the technical solution adopted in the utility model is as follows：
A kind of moving-magnetic type linear motor for compressor, including inner stator, the interior external stator for setting hot-wire coil, flat spring
And permanent magnet mechanism, the inner stator and the external stator are respectively arranged at the permanent magnet mechanism both sides, it is characterised in that：It is described forever
Magnetic mechanism includes tubular support frame and the permanent magnet that is embedded on the support frame side wall, further includes that intermediate to be equipped with connection logical
The step connector in hole and attachment screw compatible with the connection through-hole, the path section of the step connector pass perpendicularly through
The framework through-hole that the support frame bottom centre position is equipped with, and the outer end side of major diameter section of the step connector with it is described
Flat spring fitting setting, the attachment screw sequentially pass through the centre bore that the flat spring is equipped with and the connection through-hole and pressure
The compression piston of contracting machine is fixedly connected, and the support frame is spaced apart simultaneously by the step connector with the flat spring, is used
In the concentricity for ensureing that the support frame is connect with the compression piston, installation is convenient and precisely easily-controllable, reduces difficulty of processing
And assembly difficulty.
A kind of embodiment, far from the support frame bottom side wall on be equipped with it is compatible with the permanent magnet forever
Magnet mounting hole.
Preferably, the lower circumference of the support frame is laid with several lightening holes, for realizing plunger shaft
The circulation of internal gas and mitigation motor weight.
As further preferred scheme, the shape of the lightening hole is circle.
Preferably, it is additionally provided with fixinig plate, the fixinig plate through-hole that the fixinig plate is equipped with by center is arranged
It is interference fitted in the major diameter section of the step connector and with the major diameter section of the step connector, circumference on the fixinig plate
Be laid with several connecting holes, the fixinig plate by equipped with screw the support frame is fixedly connected through the connecting hole
On the compression piston.
Preferably, the attachment screw is arranged for inner hollow, for by simultaneously while for mitigating weight
Connect the connecting shaft of expansion piston.
Preferably, the permanent magnet is several arcuate permanent magnetic pieces, and several arcuate permanent magnetic pieces, which join end to end, to be enclosed
Around the endless belt-shaped permanent magnet of composition.
As further preferred scheme, by being equipped with multiple bar shaped dowels on the support frame, the dowel is set
It is placed between two neighboring arcuate permanent magnetic piece, the dowel two sides are fitted and connected with arcuate permanent magnetic piece side respectively.
Compared with prior art, the utility model has the advantages that：
Moving-magnetic type linear motor described in the utility model for compressor is set by step connector, fixinig plate
The stable connection increased between compression piston, support frame is set, the concentricity between compression piston and support frame is high, makes
Structure of the linear motion actuator is compact, stable connection, so so that air-gap field is evenly distributed, flux density size distribution is stablized, improve electronic
The linearisation of machine thrust increases motor specific thrust, improves electric efficiency, and by several arcuate permanent magnetic pieces, closely connection is in a ring
Shape permanent magnetism band, makes permanent magnet magnetic force be more evenly distributed, and permanent magnet is embedded setting, reduces the gas of occupied space and linear motor
Gap, reduce motor size, in addition, the utility model also have improve application apparatus power factor and efficiency, save electric energy and
The advantages that consumptive material, has apparent progressive and application value.
Description of the drawings
Fig. 1 is a kind of moving-magnetic type linear motor structural schematic diagram for compressor that the utility model embodiment provides；
Fig. 2 is the enlarged drawing of A in Fig. 1；
Fig. 3 is the structural schematic diagram for the permanent magnet mechanism that the utility model embodiment provides；
Fig. 4 is the A-A sectional views of Fig. 3；
Fig. 5 is the bottom substance schematic diagram for the permanent magnet mechanism that the utility model embodiment provides；
Fig. 6 is the structural schematic diagram for the step connector that the utility model embodiment provides；
Fig. 7 is the structural schematic diagram for the fixinig plate that the utility model embodiment provides.
Figure label is schematically as follows：1, inner stator；2, external stator；3, flat spring；4, permanent magnet mechanism；41, support frame；
411, framework through-hole；412, lightening hole；413, dowel；42, permanent magnet；421, arcuate permanent magnetic piece；5, step connector；51、
Connect through-hole；6, attachment screw；7, compression piston；8, fixinig plate；81, fixinig plate through-hole；82, counterbore is connected；83, mounting hole.
Specific implementation mode
The technical solution of the utility model is described in further detail below in conjunction with drawings and examples.
Embodiment
In conjunction with shown in Fig. 1 to Fig. 7, a kind of moving-magnetic type linear motor for compressor provided in this embodiment is set to
In compressor, including inner stator 1, the interior external stator 2 for setting hot-wire coil, flat spring 3 and permanent magnet mechanism 4,1 He of the inner stator
The external stator 2 is respectively arranged at 4 both sides of the permanent magnet mechanism, and the permanent magnet mechanism 4 includes tubular support frame 41 and is embedded
Permanent magnet 42 on 41 side wall of the support frame, further include the intermediate step connector 5 for being equipped with connection through-hole 51 and with institute
Connection 51 compatible attachment screw 6 of through-hole is stated, the path section of the step connector 5 passes perpendicularly through 41 bottom of the support frame
Framework through-hole 411 that portion center is equipped with simultaneously is interference fitted with the framework through-hole 411, and the step connector 5
The outer end side of major diameter section is bonded setting with the flat spring 3, and the attachment screw 6 sequentially passes through during the flat spring 3 is equipped with
Heart hole and the connection through-hole 51 are fixedly connected with the compression piston 7 of compressor, and the step connector 5 is by the support frame
41 are spaced apart simultaneously with the flat spring 3, the concentricity being connect with the compression piston 7 for ensureing the support frame 41,
Installation is convenient and precisely easily-controllable, reduces difficulty of processing and assembly difficulty.
In the present embodiment, it is equipped on the side wall far from 41 bottom of the support frame and is adapted with the permanent magnet 42
Permanent magnet mounting hole.
In the present embodiment, the lower circumference of the support frame 41 is laid with several lightening holes 412, the lightening hole
412 shape is circle, the circulation for realizing gas in piston cavity and mitigation motor weight, such as Fig. 1, Fig. 3 and Fig. 5 institute
Show.
In order to improve stable connection, in the present embodiment, it is additionally provided with fixinig plate 8, the fixinig plate 8 passes through center
The fixinig plate through-hole 81 being equipped be set in the major diameter section of the step connector 5 and with the major diameter section of the step connector 5
Interference fit, circumference uniform distribution is equipped with several connection counterbores 82, the bottom of the support frame and the work on the fixinig plate
It is respectively equipped at least three mounting hole 83 corresponding with the fixinig plate 8 beyond the Great Wall, and solid by bolt and compression piston 7 respectively
Fixed connection, the fixinig plate 8 are fixed the support frame 41 through the connection counterbore 82 and the mounting hole 83 using screw
On the compression piston 7, as shown in Figure 1.
In the present embodiment, the attachment screw 6 is the hex screw of inner hollow setting, for mitigating body weight,
When the linear motor described in the present embodiment is applied to free-piston type refrigeration machine, the inner hollow setting of the attachment screw 6 is used
In the connecting shaft by simultaneously fixed expansion piston, as shown in Figure 1.
Influence in view of 42 shape of permanent magnet to magnetism distribution, in the present embodiment, the permanent magnet 42 are several arcs
Shape permanent magnetism piece 421, several arcuate permanent magnetic pieces 421 join end to end around endless belt-shaped permanent magnet is constituted, as shown in Figure 4.
In view of the fixation of permanent magnet 42, in the present embodiment, connected by being equipped with multiple bar shapeds on the support frame 41
Muscle 413 is connect, the dowel 413 is set between two neighboring arcuate permanent magnetic piece 421,413 two sides of dowel difference
It is fitted and connected with 421 side of arcuate permanent magnetic piece, as shown in Figure 3 and Figure 4.
It is visible in summary：Moving-magnetic type linear motor described in the utility model for compressor is connected by step
The setting of part 5, fixinig plate 8 increases the stable connection between compression piston 7, support frame 41, compression piston 7 and support frame
Concentricity between body 41 is high, makes that structure of the linear motion actuator is compact, stable connection, so so that air-gap field is evenly distributed, flux density it is big
Small distribution is stablized, and is improved the linearisation of motor thrust, is increased motor specific thrust, improve electric efficiency, by several arcs
Closely connection is in an annular permanent magnet band to shape permanent magnetism piece, so that permanent magnet magnetic force is more evenly distributed, permanent magnet is embedded setting, reduces and accounts for
With the air gap in space and linear motor, reduce motor size, in addition, the utility model also have improve the power of application apparatus because
Number and efficiency save the advantages that electric energy and consumptive material, have apparent progressive and application value.
It is last it is necessarily pointed out that：The foregoing is merely the preferable specific implementation modes of the utility model, but this
The protection domain of utility model is not limited thereto, and any one skilled in the art discloses in the utility model
In technical scope, the change or replacement that can be readily occurred in should be covered within the scope of the utility model.
Claims (8)
1. a kind of moving-magnetic type linear motor for compressor, including inner stator, the interior external stator for setting hot-wire coil, flat spring and
Permanent magnet mechanism, the inner stator and the external stator are respectively arranged at the permanent magnet mechanism both sides, it is characterised in that：The permanent magnetism
Mechanism includes tubular support frame and the permanent magnet that is embedded on the support frame side wall, further includes intermediate being equipped with connection through-hole
Step connector and attachment screw compatible with the connection through-hole, the path section of the step connector pass perpendicularly through institute
State the framework through-hole that support frame bottom centre position is equipped with, and the outer end side of major diameter section of the step connector and the plate
Spring fitting setting, the attachment screw sequentially pass through the centre bore that the flat spring is equipped with and the connection through-hole and compression
The compression piston of machine is fixedly connected.
2. moving-magnetic type linear motor according to claim 1, it is characterised in that：In the side far from the support frame bottom
Wall is equipped with permanent magnet mounting hole compatible with the permanent magnet.
3. moving-magnetic type linear motor according to claim 1, it is characterised in that：The lower circumference of the support frame is uniformly distributed
Equipped with several lightening holes.
4. moving-magnetic type linear motor according to claim 3, it is characterised in that：The shape of the lightening hole is circle.
5. moving-magnetic type linear motor according to claim 1, it is characterised in that：It is additionally provided with fixinig plate, the fixinig plate is logical
Cross the fixinig plate through-hole that center is equipped be set in the major diameter section of the step connector and with the step connector
Major diameter section is interference fitted, and circumference uniform distribution is equipped with several connecting holes on the fixinig plate, the fixinig plate by equipped with screw pass through
The support frame is fixedly connected on the compression piston by the connecting hole.
6. moving-magnetic type linear motor according to claim 5, it is characterised in that：The attachment screw sets for inner hollow
It sets.
7. moving-magnetic type linear motor according to claim 1, it is characterised in that：The permanent magnet is several arcuate permanent magnetics
Piece, several arcuate permanent magnetic pieces join end to end around the endless belt-shaped permanent magnet of composition.
8. moving-magnetic type linear motor according to claim 7, it is characterised in that：It is multiple by being equipped on the support frame
Bar shaped dowel, the dowel are set between two neighboring arcuate permanent magnetic piece, the dowel two sides respectively with it is described
Arcuate permanent magnetic piece side is fitted and connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820262164.5U CN207926410U (en) | 2018-02-22 | 2018-02-22 | A kind of moving-magnetic type linear motor for compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820262164.5U CN207926410U (en) | 2018-02-22 | 2018-02-22 | A kind of moving-magnetic type linear motor for compressor |
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| Publication Number | Publication Date |
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| CN207926410U true CN207926410U (en) | 2018-09-28 |
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| CN201820262164.5U Active CN207926410U (en) | 2018-02-22 | 2018-02-22 | A kind of moving-magnetic type linear motor for compressor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108336886A (en) * | 2018-02-22 | 2018-07-27 | 方舟 | A kind of moving-magnetic type linear motor for compressor |
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2018
- 2018-02-22 CN CN201820262164.5U patent/CN207926410U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108336886A (en) * | 2018-02-22 | 2018-07-27 | 方舟 | A kind of moving-magnetic type linear motor for compressor |
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