CN109899286A - A kind of scroll fluid gearshift with floating electromagnetic mechanism - Google Patents
A kind of scroll fluid gearshift with floating electromagnetic mechanism Download PDFInfo
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- CN109899286A CN109899286A CN201910234041.XA CN201910234041A CN109899286A CN 109899286 A CN109899286 A CN 109899286A CN 201910234041 A CN201910234041 A CN 201910234041A CN 109899286 A CN109899286 A CN 109899286A
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Abstract
The invention discloses a kind of scroll fluid gearshifts with floating electromagnetic mechanism, comprising: dynamic scrollwork axial floating electromagnetic mechanism moves scrollwork by electromagnetism power drive and makees to comply with floating to scrollwork is determined；Comprising: magnetic circuit ring, for generating electromagnetic force；Suction panel can be attracted or be repelled by magnetic circuit ring；Electromagnetic attraction and/or electromagnetic repulsion force between magnetic circuit ring and suction panel enable scrollwork and determine scrollwork to overcome axial separation force caused by gas pressure in gas chamber and high-pressure area and area of low pressure, are sealed with keeping dynamic scrollwork and determining the contact between scrollwork；It further include control system, for controlling to adjust the size of electromagnetic force and the time phase of electromagnetic force.Each position of the present invention within each period, one thrust for meeting seal request is provided in real time, to guarantee that the electromagnetic push size of any time actually required sealing force and offer keeps set size and phase relation in real time, be finally reached efficiently, reliability service.
Description
Technical field
The present invention relates to the technical field of floating type screw compressor more particularly to a kind of whirlpools with floating electromagnetic mechanism
Rotary fluid gearshift.
Background technique
It how to be that influence is whole to moving scrollwork, determining the suitable axis sealing of scrollwork offer in floating type screw compressor
Machine runs an important factor for indexs such as power consumption, performance, service life, reliability.Screw compressor in the process of running, moves scrollwork, determines
The axial gas separating force generated between scrollwork by compressed gas is not a definite value, but for each revolution for one
Period is changed in a certain section with a certain curve again and again.There are two conventional solution is usual, to dynamic scrollwork, determine
Scrollwork is all suitable for, and only gives explanation by taking dynamic scrollwork as an example herein.
First is to provide a constant power to dynamic scrollwork to overcome compressed gas to act on the axial separation on dynamic scrollwork
Power, the constant force are greater than the thrust of maximum axial gas separating force in operational process, and the mode of realization has spring force, dynamic scrollwork
Back pressure cavity introduces the thrust gas etc. of constant air pressure, such as " the improved scrollwork fluid position with comprehensive compliance suspension swirl
Moving device ", patent No. ZL200610121150.3).
Second is that the gas for changing pressure cycle from the compression air chamber of scrollwork introduces back pressure chamber.The back that gas pressure generates
Pressure energy makes to float with being servo-actuated the variation of axial separation force suffered by scrollwork along with constant forces such as springs to a certain extent
Scrollwork longitudinal balance power (also referred to as axis sealing) can to a certain extent with axial separation force suffered by floating scrollwork
Synchronous variation, to reduce axial resultant force.
It can using usual manner when axial gas separating force amplitude of variation is little in one cycle for some types
To meet requirement；But it is larger for axial gas separating force amplitude of variation in one cycle, or to Energy Efficiency Ratio requirement
Higher type, especially for oilless (oil free) compressor, only with usual manner, the resultant force of longitudinal balance power and separating force still compared with
Greatly.Biggish dynamic scrollwork determines contact force between scrollwork, increases frictional force, power consumption, reduce scrollwork service life, operation can
By property etc..
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of scroll fluid gearshifts with floating electromagnetic mechanism.
The technical solution adopted by the invention is as follows:
A kind of scroll fluid gearshift with floating electromagnetic mechanism, comprising:
At least one dynamic scrollwork, the dynamic scrollwork have first end plate, are fixed with the first spiral shell on the basal plane of the first end plate
Revolve shape side wall；
At least certain scrollwork, it is described to determine scrollwork with the second end plate, the second spiral shell is fixed on the basal plane of second end plate
Shape side wall is revolved, the first spiral shape side wall is meshed with the second spiral shape side wall；
Drive shaft is rotated, the rotation drive shaft drives the dynamic scrollwork, the dynamic scrollwork is made to determine scrollwork relative to described
Make track movement；
Casing, the casing support is described to determine scrollwork and the rotation drive shaft；
When the dynamic scrollwork relative to it is described determine scrollwork and make track movement when, the first spiral shape side wall, described second
It is formed between the basal plane of spiral shape side wall, the basal plane of the first end plate and second end plate moveable, changeable
The gas chamber of volume and the high-pressure area of working fluid and area of low pressure；
Wherein, further includes: dynamic scrollwork axial floating electromagnetic mechanism, the dynamic scrollwork axial floating electromagnetic mechanism pass through electromagnetism
Scrollwork is moved described in power drive determines scrollwork work compliance floating to described；
The dynamic scrollwork axial floating electromagnetic mechanism includes:
At least one magnetic circuit ring, the magnetic circuit ring are equipped with magnet exciting coil, and the magnetic circuit ring is for generating electromagnetic force；
Suction panel, the suction panel can be attracted or be repelled by the magnetic circuit ring；
Electromagnetic attraction and/or electromagnetic repulsion force between the magnetic circuit ring and the suction panel make the dynamic scrollwork and described fixed
Scrollwork can overcome axially to be divided caused by the gas pressure in the gas chamber and the high-pressure area and the area of low pressure
From power, to keep the dynamic scrollwork and the contact sealing determined between scrollwork；
Further include: control system, the control system is for controlling to adjust the size of electromagnetic force and the time phase of electromagnetic force
Position.
The above-mentioned scroll fluid gearshift with floating electromagnetic mechanism, wherein the electromagnetic attraction and/or the electricity
The resultant force of magnetic repulsion and auxiliary force can overcome the gas pressure in the gas chamber and the high-pressure area and the area of low pressure
Axial separation force caused by power, to keep the dynamic scrollwork and the contact sealing determined between scrollwork, wherein the auxiliary
Power is spring force, the elastic force of rubber and high molecular polymer elastomeric material, the elastic force of elastic construction, and/or Fluid pressure.
The above-mentioned scroll fluid gearshift with floating electromagnetic mechanism, wherein the magnetic circuit ring and the suction panel
It is made of permeability magnetic material and/or permanent-magnet material.
The above-mentioned scroll fluid gearshift with floating electromagnetic mechanism, wherein the control system includes: exhaust pressure
Force signal detection system, magnet exciting coil power supply system, weighing sensor system and motor shaft phase detection；The control system
System controls to adjust the mechanical periodicity curve of electromagnetic force, makes the mechanical periodicity curve of electromagnetic force and the dynamic scrollwork and described determines scrollwork
Axial gas separating force the synchronous variation of curve, so that the dynamic scrollwork and the PV value determine between scrollwork is not more than 10Mpa*
m/s。
Wherein, the PV value is the dynamic scrollwork and the contact stress determined between scrollwork and the dynamic scrollwork and described
Determine the product of linear velocity mutually moved between scrollwork.
A kind of scroll fluid gearshift with floating electromagnetic mechanism, comprising:
At least one dynamic scrollwork, the dynamic scrollwork have first end plate, are fixed with the first spiral shell on the basal plane of the first end plate
Revolve shape side wall；
At least certain scrollwork, it is described to determine scrollwork with the second end plate, the second spiral shell is fixed on the basal plane of second end plate
Shape side wall is revolved, the first spiral shape side wall is meshed with the second spiral shape side wall；
Drive shaft is rotated, the rotation drive shaft drives the dynamic scrollwork, the dynamic scrollwork is made to determine scrollwork relative to described
Make track movement；
Casing, the casing support is described to determine scrollwork and the rotation drive shaft；
When the dynamic scrollwork relative to it is described determine scrollwork and make track movement when, the first spiral shape side wall, described second
It is formed between the basal plane of spiral shape side wall, the basal plane of the first end plate and second end plate moveable, changeable
The gas chamber of volume and the high-pressure area of working fluid and area of low pressure；
Wherein, further includes: determine scrollwork axial floating electromagnetic mechanism, it is described to determine scrollwork axial floating electromagnetic mechanism and pass through electromagnetism
Determine scrollwork described in power drive to make to comply with floating to the dynamic scrollwork；
It is described to determine scrollwork axial floating electromagnetic mechanism and include:
At least one magnetic circuit ring, the magnetic circuit ring are equipped with magnet exciting coil, and the magnetic circuit ring is for generating electromagnetic force；
Suction panel, the suction panel can be attracted or be repelled by the magnetic circuit ring；
Electromagnetic attraction and/or electromagnetic repulsion force between the magnetic circuit ring and the suction panel make the dynamic scrollwork and described fixed
Scrollwork can overcome axially to be divided caused by the gas pressure in the gas chamber and the high-pressure area and the area of low pressure
From power, to keep the dynamic scrollwork and the contact sealing determined between scrollwork；
Further include: control system, the control system is for controlling to adjust the size of electromagnetic force and the time phase of electromagnetic force
Position.
The above-mentioned scroll fluid gearshift with floating electromagnetic mechanism, wherein the electromagnetic attraction and/or the electricity
The resultant force of magnetic repulsion and auxiliary force can overcome the gas pressure in the gas chamber and the high-pressure area and the area of low pressure
Axial separation force caused by power, to keep the dynamic scrollwork and the contact sealing determined between scrollwork, wherein the auxiliary
Power is spring force, the elastic force of rubber and high molecular polymer elastomeric material, the elastic force of elastic construction, and/or Fluid pressure.
The above-mentioned scroll fluid gearshift with floating electromagnetic mechanism, wherein the magnetic circuit ring and the suction panel
It is made of permeability magnetic material and/or permanent-magnet material.
The above-mentioned scroll fluid gearshift with floating electromagnetic mechanism, wherein the control system includes: exhaust pressure
Force signal detection system, magnet exciting coil power supply system, weighing sensor system and motor shaft phase detection；The control system
System controls to adjust the mechanical periodicity curve of electromagnetic force, makes the mechanical periodicity curve of electromagnetic force and the dynamic scrollwork and described determines scrollwork
Axial gas separating force the synchronous variation of curve, so that the dynamic scrollwork and the PV value determine between scrollwork is not more than 10Mpa*
m/s。
Wherein, the PV value is the dynamic scrollwork and the contact stress determined between scrollwork and the dynamic scrollwork and described
Determine the product of linear velocity mutually moved between scrollwork.
The present invention is in dynamic scrollwork front/back or determine the back side of scrollwork and is cooperated by permanent magnet+magnet exciting coil or magnetic conduction material
The mode of material+magnet exciting coil cooperation, generate one with dynamic scrollwork or determine the periodically variable gas pressure production that scrollwork born
The synchronous variation of raw axial separation force, contrary thrust realize dynamic scrollwork using the thrust, determine contact between scrollwork
Sealing effect.
The present invention calculates dynamic scrollwork under different pressures at expulsion by formula, determines the axial direction point of axial gas between scrollwork
It is input in control system from power mechanical periodicity curve group, control system is according to collected discharge pressure signal automatical phase selection
The aim curve answered；According to aim curve, control system is adjusted the voltage and current on magnet exciting coil, generates preliminary electricity
Magnetic force, electromagnetic force are weighed sensor after generating and measure, and the signal of weighing sensor output is transmitted to control system, control system root
Factually measured data curve and goal theory thrust curve carry out real time contrast, then finely tune the voltage and current size on magnet exciting coil,
Closed-loop control is realized repeatedly, and actual electromagnetic force curve and the theoretical thrust curve for being finally reached offer are fully synchronized.
The curve and the curve sizes of actually required thrust and period that electromagnetic force may be implemented through the above way can be complete
It is complete consistent, but between also needing to guarantee theoretical curve phase and dynamic scrollwork, determine scrollwork mesh phase it is consistent or it is close unanimously, preferably
Ground, the PV value for making scrollwork and determining between scrollwork are not more than 10Mpa*m/s.The present invention draws shaft phase letter from motor shaft
Number, the position of shaft phase signal from mechanical structure with practical dynamic scrollwork, determine the mesh phase relationship between scrollwork and be fixed,
Mesh phase signal is input in control system between the reality of shaft outflow moves scrollwork, determines scrollwork, to theoretical thrust curve phase
Carry out real-time calibration.Set by guaranteeing that the electromagnetic force size of any time actually required sealing force and offer keeps in real time
Size and phase relation, be finally reached efficiently, reliability service.
Due to using above-mentioned technology, the good effect for being allowed to have compared with prior art is the present invention:
(1) present invention provides a kind of all or part and provides the full floating whirlpool of appropriate axis sealing in real time by electromagnetic force
Compressor thrust settling mode, i.e., each position within each period are revolved, offer one in real time is just met for sealing and wants
The thrust asked, to guarantee that the electromagnetic push size of any time actually required sealing force and offer keeps set big in real time
Small and phase relation is finally reached efficient, reliability service.
Detailed description of the invention
Fig. 1 is that compressor moves for each revolution under conditions of some setting, determines scrollwork theoretical calculation axial separation force
Curve, and axial seal force curve pair is provided with using electromagnetic force using the axial seal force curve that normal thrust mode provides
Than figure.
Fig. 2 is the working principle of the control system of the scroll fluid gearshift with floating electromagnetic mechanism of the invention
Figure.
Fig. 3 is the cross-sectional view of the first embodiment of the scroll fluid gearshift with floating electromagnetic mechanism of the invention.
Fig. 4 be the first embodiment of the scroll fluid gearshift with floating electromagnetic mechanism of the invention suction panel,
The assembling assembly cross-sectional view of dynamic scroll seat and dynamic scrollwork.
Fig. 5 be the first embodiment of the scroll fluid gearshift with floating electromagnetic mechanism of the invention suction panel,
The assembling assembly 3-D view of dynamic scroll seat and dynamic scrollwork.
Fig. 6 be the first embodiment of the scroll fluid gearshift with floating electromagnetic mechanism of the invention magnetic circuit ring,
The assembling assembly cross-sectional view of magnet exciting coil and magnetic circuit ring supporting element.
Fig. 7 be the first embodiment of the scroll fluid gearshift with floating electromagnetic mechanism of the invention magnetic circuit ring,
The assembling assembly 3-D view of magnet exciting coil and magnetic circuit ring supporting element.
Fig. 8 is the weighing and sensing of the first embodiment of the scroll fluid gearshift with floating electromagnetic mechanism of the invention
The schematic view of the mounting position of device, supporting element positioning pin on base.
Fig. 9 is the first embodiment of the scroll fluid gearshift with floating electromagnetic mechanism of the invention to excitation wire
Enclose the electric wire extraction location and special sections figure of power supply.
Figure 10 is the cross-sectional view of the second embodiment of the scroll fluid gearshift with floating electromagnetic mechanism of the invention.
Figure 11 be the second embodiment of the scroll fluid gearshift with floating electromagnetic mechanism of the invention magnetic circuit ring,
Weighing sensor and the assembling assembly cross-sectional view for determining scrollwork.
Figure 12 be the second embodiment of the scroll fluid gearshift with floating electromagnetic mechanism of the invention magnetic circuit ring,
Weighing sensor and the assembling assembly 3-D view for determining scrollwork.
Figure 13 be the second embodiment of the scroll fluid gearshift with floating electromagnetic mechanism of the invention suction panel,
The assembling assembly cross-sectional view of pull rod and dynamic scrollwork.
Figure 14 be the second embodiment of the scroll fluid gearshift with floating electromagnetic mechanism of the invention suction panel,
The assembling assembly 3-D view of pull rod and dynamic scrollwork.
Figure 15 is the cross-sectional view of the 3rd embodiment of the scroll fluid gearshift with floating electromagnetic mechanism of the invention.
Figure 16 be the 3rd embodiment of the scroll fluid gearshift with floating electromagnetic mechanism of the invention suction panel,
Compression bar and the assembling assembly cross-sectional view for determining scrollwork.
Figure 17 be the 3rd embodiment of the scroll fluid gearshift with floating electromagnetic mechanism of the invention suction panel,
Compression bar and the assembling assembly 3-D view for determining scrollwork.
Figure 18 is that the weighing of the 3rd embodiment of the scroll fluid gearshift with floating electromagnetic mechanism of the invention passes
Sensor, the assembling assembly cross-sectional view for determining scrollwork and magnetic circuit ring.
Figure 19 is that the 3rd embodiment of the scroll fluid gearshift with floating electromagnetic mechanism of the invention determines scrollwork
The position distribution 3-D view in scroll seat is being determined in positioning pin, compression bar channel.
Figure 20 is that the weighing of the 3rd embodiment of the scroll fluid gearshift with floating electromagnetic mechanism of the invention passes
Sensor, the assembling assembly 3-D view for determining scrollwork and magnetic circuit ring.
In attached drawing: 500, control system；510, discharge pressure signal detection system；520, magnet exciting coil power supply system；
530, weighing sensor system；540, machine shaft phase signal detection system；1, scrollwork core is moved；2, scroll seat is moved；3, magnetic circuit
Ring；4, magnet exciting coil；5, magnetic circuit ring positioning pin；6, magnetic circuit ring supporting element；7, weighing sensor；8, motor casing；9, crank axle；
11, magnetic circuit ring supporting element positioning pin；12, suction panel；13, determine scrollwork core；14, determine scroll seat；15, pedestal；16, bearing is driven；
17, joint；121, magnet exciting coil draws line passage；601, magnet exciting coil draws line passage；151, magnet exciting coil draws line passage；
152, weighing sensor draws line passage；18, magnetic circuit ring；19, magnet exciting coil；21, pin fastener is positioned；22, magnetic circuit ring positions
Pin；23, weighing sensor；24, determine scrollwork；25, suction panel；26, suction plate fastener；27, pull rod；28, scrollwork core is moved；29,
Dynamic scroll seat；241, pull rod passes through region；181, magnet exciting coil lead passes through region；31, load cell block；32, weighing passes
Sensor seat fastener；33, weighing sensor；34, weighing sensor fastener；35, magnetic circuit ring；36, magnet exciting coil；37, determine whirlpool
Core positioning pin；38, determine scroll seat；39, magnetic circuit ring positioning pin；41, suction panel；42, suction plate fastener；43, compression bar；44,
Determine scrollwork core fastener；45, determine scrollwork core；46, scrollwork core is moved；47, scroll seat is moved；470, scrollwork is moved；380, determine scrollwork；381,
Compression bar channel；351, magnet exciting coil draws line passage.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings and specific examples, but not as the limitation of the invention.
Referring to fig. 1 to fig. 3, the curve a in Fig. 1 is normal thrust curve (N), and the curve b in Fig. 1 pushes away for electromagnetism
Force curve (N), the curve c in Fig. 1 are axial separation force curve (N).
Compressor 100 has pedestal 15, determines scrollwork 140, motor 800, crank axle 9 and dynamic scrollwork 200.Determine the packet of scrollwork 140
It has included and has determined scrollwork core 13 and determine scroll seat 14.Dynamic scrollwork 200 includes dynamic scrollwork core 1 and dynamic scroll seat 2, is had in dynamic scroll seat 2
Bearing block 201.Crank axle 9 is supported and can be rotated around its axial line by bearing.Scrollwork core 13 is determined with end plate 131 and by end plate
131 swirl elements 132 extended.The swirl elements that dynamic scrollwork core 1 has end plate 101 and extended by end plate 101
102, and it is fixed on the dynamic scroll seat 2 of 101 lower part of end plate.There is an eccentric crankpin 901 in the end of crank axle 9.Pass through
Joint 17 drives the dynamic scrollwork driving bearing 16 being fixed in bearing block 201, to drive dynamic scrollwork core 1.In operation, determine whirlpool
Volume 140 and dynamic scrollwork 200 keep 180 ° of angular displacement and are radially maintaining a distance i.e. moving radius Ror.In scrollwork member
A sealed air chamber is at least formd between part 132 and swirl elements 102 and end plate 131 and end plate 101.
The axial Floating Technology of complying with of scrollwork has two major classes: dynamic scrollwork floats to scrollwork work compliance is determined；Or, determining scrollwork to dynamic
Scrollwork, which is made to comply with, to float.
Dynamic scrollwork, which is furnished with the CSPS mechanism axially complied with, (has centre-crank axis-movable joint and periphery crank-pin-swing
" the improved scroll fluid displacement device with comprehensive compliance suspension swirl ", patent are shown in the mechanism that bindiny mechanism combines
Number ZL200610121150.3) it can axially and/or radially carry out to determining scrollwork and comply with to float.
The Floating Technology United States Patent (USP) U.S.Pat.No.4,767,293 (Jean- that another kind is axially complied with
LucCaillatetal it) describes from determining scrollwork and does the axial mechanism for complying with floating to dynamic scrollwork.
Working fluid enters air intake passage by determining the air inlet in scroll seat 14, then the pressure by being formed between scrollwork
Contracting gas chamber is made to be compressed in track movement, then reaches central plenum 133, then by gas vent 141, machine is discharged in scrollwork
Outside.
Embodiment one:
The working principle of the invention and embodiment are first is that install electromagnetic force component dynamic between scrollwork and pedestal.Embodiment one
Electromagnetic force component include permeability magnetic material and magnet exciting coil, by by between magnetic circuit ring and suction panel suction or thrust pass through machinery
Structure is converted into the axial thrust to dynamic scrollwork, and then realizes the effect for overcoming dynamic scrollwork, determining scrollwork axial gas separating force.Electricity
Magnetic force can be combined with permanent magnet and provide required electromagnetic force together in addition to the electromagnetic force generated by magnet exciting coil.
Embodiment one mainly thes improvement is that compared to traditional back pressure chamber gas pressure, spring force and other power it
Outside, the dynamic scrollwork of electromagnetism power drive can be generated to the dynamic scrollwork axial floating electromagnetic motor for determining scrollwork work compliance floating by introducing one
Structure, to generate the electromagnetic force that can synchronize variation by the variation of the gas separating force suffered by scrollwork.For the convenienct and succinct of narration
For the sake of, introducing principle and the operating mechanism of electromagnetic force are mainly described herein.
Specifically, it refers to shown in Fig. 3 to Fig. 9, shows the first vortex flow preferably with floating electromagnetic mechanism
Position moving device, wherein magnetic circuit ring 3 is the steel loop of a magnetic conduction, wherein insertion magnet exciting coil 4, is integrally fixedly mounted on dynamic whirlpool
Between coil rest 2 and suction panel 12, magnetic circuit ring 3 be it is stationary, be supported on magnetic circuit ring supporting element 6.3 top of magnetic circuit ring and dynamic
Certain interval, while the gap between magnetic circuit ring 3 and suction panel 12 are kept between scroll seat 2, is called magnetic gap, it is also desirable to which control exists
In a certain range.
In addition, magnetic gap one uniformly, and will will guarantee that axial floating part (inhale by scrollwork as a kind of preferred embodiment
Power plate/thrust plate and piston etc.) it is small as far as possible on the basis of wear-compensating amount.Magnetic gap is smaller, required confession under the conditions of same electromagnetic power
Electricity is smaller.
In addition, dynamic scroll seat 2 is made of un-conducted magnetic material, magnetic circuit ring 3 and suction panel as a kind of preferred embodiment
12 be permeability magnetic material or permanent-magnet material, is seen depending on specific need.
Further, as a kind of preferred embodiment, magnet exciting coil 4 is supplied certain by magnet exciting coil power supply system 520
Electric current.After energization, magnet exciting coil 4 generates electromagnetic field, and electromagnetic field can form magnetic in the magnetic circuit that magnetic circuit ring 3 and suction panel 12 form
Field circuit.
Further, as a kind of preferred embodiment, due to there being certain magnetic between magnetic circuit ring 3 and suction panel 12
Gap is generated and suction panel 12 is promoted up to move and magnetic circuit so can generate magnetic attraction force between magnetic circuit ring 3 and suction panel 12
The power that ring 3 is run down, the two size same direction are opposite.Suction panel 12 and dynamic scroll seat 2, dynamic scrollwork core 1 are to be fixed on one
It rising, the power that suction panel 12 up moves can be transmitted on dynamic scrollwork core 1, and promote dynamic scrollwork core 1 close to scrollwork core 13 is determined, this
A power can be used as overcome dynamic scrollwork 200, determine compressed gas between scrollwork 140 caused by axial separation force.
Further, as a kind of preferred embodiment, the power that magnetic circuit ring 3 is run down is applied to magnetic circuit ring supporting element 6
On, it is then transmitted to again on three weighing sensors 7.Pass through weighing and sensing by the electric signal that acquisition weighing sensor 7 exports
The processing of device system 530, can monitor the size of suction between magnetic circuit ring 3 and suction panel 12 in real time.The suction period that acquisition comes out
Curve can be real-time transmitted in control system 500, right in real time with the progress of the theoretical curve of required thrust in control system 500
Than passing through magnet exciting coil power supply system 520 again according to deviation size and adjusting the power supply numerical value of magnet exciting coil 4 in real time, and then realize
Closed-loop control.
Specifically, the theoretical curve of required thrust is that one group of curve passes through for the difference of working condition locating for compressor
Acquisition to the several key status parameters of compressor, control system 500 can carry out the selection of theoretical curve automatically.Magnet exciting coil
Electric current caused by power supply system 520 is corresponding with the phase relation of theoretical curve and size will be by machine shaft phase signal system
540 and discharge pressure signal detection system 510 adjusted respectively, to reach on dynamic scrollwork 200 suffered axial separation force
Resultant force with axial thrust (including electromagnetic force and traditional back pressure gas chamber, compression spring etc.) is meeting dynamic scrollwork 200, is determining whirlpool
The purpose that 140 contact sealing of volume minimizes under conditions of needing.It is complied with to realize dynamic scrollwork 200 to the axial of scrollwork 140 is determined
It floats.
The scheme of the electromagnetic attraction used in the embodiment of the present invention one is also readily modified as with electromagnetic repulsion force and other is logical
The mechanical structure of simple change is crossed to implement.
Embodiment two:
The working principle of the invention and embodiment are done second is that introducing one and can generate the dynamic scrollwork of electromagnetism power drive to scrollwork is determined
Comply with the dynamic scrollwork axial floating electromagnetic mechanism to float.Scrollwork one end is being determined in magnet exciting coil setting in example 2.Implement
The structure and function of the control system of electromagnetic force in example two is identical as above-described embodiment one, and details are not described herein.
Electromagnetic force component is made of permeability magnetic material+magnet exciting coil, and the suction between magnetic circuit ring and suction panel is passed through machine
Tool structure is converted into the pulling force to dynamic scrollwork, and then realizes and overcome dynamic scrollwork, determine scrollwork axial gas separating force and other stress
Requirement to guarantee dynamic scrollwork, determine the effect that scrollwork keeps most probable gentle touchdown to seal.
Specifically, referring to Figure 10 to shown in Figure 14, show second preferably with floating electromagnetic mechanism vortex
Fluid displacement apparatus, wherein be embedded in magnet exciting coil 19 in the magnetic circuit ring 18 of permeability magnetic material production, by magnetic circuit ring positioning pin 22 and
21 integral installation of pin fastener is positioned on determining scrollwork 24.
In addition, weighing sensor 23, which is mounted on, to be determined between scrollwork 24 and magnetic circuit ring 18 as a kind of preferred embodiment, peace
There are certain freedom degrees in axial direction for magnetic circuit ring 18 after the completion of dress, so that the weighing sensor 23 when magnet exciting coil 19 is not powered
It does not stress.
In addition, suction panel 25 is mounted on magnetic circuit ring 18 and determines between scrollwork 24 as a kind of preferred embodiment.Suction panel
Certain interval, also known as magnetic gap are kept between 25 and magnetic circuit ring 18；Suction panel 25 and determine to keep certain interval between scrollwork 24, protect
Card suction panel 25 during the motion not with determine scrollwork 24 and contact.
Further, as a kind of preferred embodiment, the material for determining scrollwork 24 is un-conducted magnetic material.When magnet exciting coil 19 is logical
After electricity, electromagnetic field can be formed into a loop in the magnetic circuit that magnetic circuit ring 18 is surrounded with suction panel 25.
Further, as a kind of preferred embodiment, due to having magnetic gap between magnetic circuit ring 18 and suction panel 25, in magnetic
Magnetic attraction force can be generated between road ring 18 and suction panel 25, that is, generates the power for moving up suction panel 25, and make magnetic circuit
The power that ring 18 moves down, the contrary size of the two are identical.The power that magnetic circuit ring 18 moves down can be applied to weighing sensor
On 23, size can be come out by 23 real-time detection of weighing sensor.The power that suction panel 25 moves up can be passed by pull rod 27
Dynamic scroll seat 29 is passed, then dynamic scrollwork core 28 is i.e. close to scrollwork 24 is determined upwards in tow from dynamic scroll seat 29, final realize overcomes
Dynamic scrollwork, the effect for determining axial gas separating force between scrollwork.
Further, as a kind of preferred embodiment, magnet exciting coil 19 provides the size of suction, and period etc. can pass through
Control system 500 realize closed-loop control, guarantee scroll compressor efficiently, reliability service.The structure and function of control system 500 with
Above-described embodiment is first is that the same, and details are not described herein.
The scheme of the electromagnetic attraction used in embodiment of the present invention example two, be also readily modified as with electromagnetic repulsive force and its
He is implemented by the mechanical structure of simple change.
Embodiment three:
The working principle of the invention and embodiment are third is that introducing one and can generate electromagnetism power drive and determine scrollwork and do to dynamic scrollwork
That complies with floating determines scrollwork axial floating electromagnetic mechanism.Magnet exciting coil is mounted in the third embodiment and determines scrollwork one end.Implement
The structure and function of the control system of electromagnetic force in example three is identical as the embodiment above example one, and details are not described herein.
Electromagnetic force component is made of permeability magnetic material+magnet exciting coil, will pass through the suction between magnetic circuit ring and suction panel
Mechanical structure is converted into the thrust for determining scrollwork, so realize and overcome dynamic scrollwork, determine scrollwork axial gas separating force and other by
The requirement of power is to guarantee dynamic scrollwork, determine the effect that scrollwork keeps most probable gentle touchdown to seal.
Specifically, 5 preferably there is the vortex of floating electromagnetic mechanism to the third shown in Figure 20, is shown referring to Figure 1
Fluid displacement apparatus, wherein suction panel 41 passes through suction plate fastener 42, compression bar 43, determines scrollwork core fastener 44 and determine scrollwork
Core 45 links together, and composition determines scrollwork mandrel to floatation element.
In addition, determining the positional relationship between scrollwork core 45 and dynamic scrollwork core 46 by three as a kind of preferred embodiment
Determine scrollwork core positioning pin 37 and determines that it is by determining 45 profile outer circle of scrollwork core and three that it is axially directed to floatation element, which to determine scrollwork mandrel,
Determine the completion of scrollwork core positioning pin 37.
In addition, suction panel 41 is made of permeability magnetic material as a kind of preferred embodiment.Three weighing sensors 33 pass through
Weighing sensor fastener 34 is mounted on load cell block 31；Preferably, load cell block 31 passes through weighing sensor
Seat fastener 32, which is fixed on, to be determined in scroll seat 38；Load cell block 31 and determine the space formed between scroll seat 38 be used to place
Magnetic circuit ring 35, magnet exciting coil 36 are embedded in magnetic circuit ring 35；The radial position of magnetic circuit ring 35 is located in by magnetic circuit ring positioning pin 39
Determine in scroll seat 38, the static component of electromagnetic push system is constituted with upper-part.
Further, as a kind of preferred embodiment, after static component and axial floating component are installed together, suction panel
Certain interval, also known as magnetic gap are kept between 41 and magnetic circuit ring 35.After magnet exciting coil 36 is powered, electromagnetic field can be in magnetic circuit ring 35
It is formed into a loop in the magnetic circuit surrounded with suction panel 41.
Further, as a kind of preferred embodiment, due to having magnetic gap between magnetic circuit ring 35 and suction panel 41, in magnetic
Magnetic attraction force can be generated between road ring 35 and suction panel 41, that is, generates the power for moving down suction panel 41, and make magnetic circuit
The power that ring 35 moves up, the contrary size of the two are identical.The power that magnetic circuit ring 35 moves up can be applied to weighing sensor
On 33, size can be come out by 33 real-time detection of weighing sensor.The power that suction panel 41 moves down can be passed by compression bar 43
It passs and determines that scrollwork core 45 is close to dynamic scrollwork 470, finally realize the effect for overcoming dynamic scrollwork, determining axial gas separating force between scrollwork
Fruit.
Further, as a kind of preferred embodiment, magnet exciting coil 36 provides the size of suction, and period etc. can pass through
Control system 500 realize closed-loop control, guarantee scroll compressor efficiently, reliability service.The structure and function of control system 500 with
The embodiment above example one is identical, and details are not described herein.
The above is only preferred embodiments of the present invention, are not intended to limit the implementation manners and the protection scope of the present invention, right
For those skilled in the art, it should can appreciate that and all replace with being equal made by description of the invention and diagramatic content
It changes and obviously changes obtained scheme, should all be included within the scope of the present invention.
Claims (8)
1. a kind of scroll fluid gearshift with floating electromagnetic mechanism, comprising:
At least one dynamic scrollwork, the dynamic scrollwork have first end plate, are fixed with the first spiral shape on the basal plane of the first end plate
Side wall；
At least certain scrollwork, it is described to determine scrollwork with the second end plate, the second spiral shape is fixed on the basal plane of second end plate
Side wall, the first spiral shape side wall are meshed with the second spiral shape side wall；
Rotate drive shaft, the rotation drive shaft driving dynamic scrollwork makes the dynamic scrollwork determine scrollwork relative to described and make rail
Road movement；
Casing, the casing support is described to determine scrollwork and the rotation drive shaft；
When the dynamic scrollwork relative to it is described determine scrollwork and make track movement when, the first spiral shape side wall, second spiral
Moveable, changeable volume is formed between the basal plane of shape side wall, the basal plane of the first end plate and second end plate
Gas chamber and working fluid high-pressure area and area of low pressure；
It is characterized by further comprising: dynamic scrollwork axial floating electromagnetic mechanism, the dynamic scrollwork axial floating electromagnetic mechanism pass through electricity
Scrollwork is moved described in magnetic drive determines scrollwork work compliance floating to described；
The dynamic scrollwork axial floating electromagnetic mechanism includes:
At least one magnetic circuit ring, the magnetic circuit ring are equipped with magnet exciting coil, and the magnetic circuit ring is for generating electromagnetic force；
Suction panel, the suction panel can be attracted or be repelled by the magnetic circuit ring；
Electromagnetic attraction and/or electromagnetic repulsion force between the magnetic circuit ring and the suction panel make the dynamic scrollwork and described determine scrollwork
Axial separation force caused by the gas pressure in the gas chamber and the high-pressure area and the area of low pressure can be overcome,
To keep the dynamic scrollwork and the contact sealing determined between scrollwork；
Further include: control system, the control system are used to control to adjust the size of electromagnetic force and the time phase of electromagnetic force.
2. the scroll fluid gearshift according to claim 1 with floating electromagnetic mechanism, which is characterized in that the electricity
The resultant force of magnetic attraction and/or the electromagnetic repulsion force and auxiliary force can overcome the gas chamber and the high-pressure area and described low
Axial separation force caused by gas pressure in intermediate pressure section, to keep the dynamic scrollwork and the contact determined between scrollwork close
Envelope, wherein the auxiliary force is spring force, the elastic force of elastic material, the elastic force of elastic construction, and/or Fluid pressure.
3. the scroll fluid gearshift according to claim 2 with floating electromagnetic mechanism, which is characterized in that the magnetic
Suction panel described in Lu Huanhe is made of permeability magnetic material and/or permanent-magnet material.
4. the scroll fluid gearshift according to claim 1 with floating electromagnetic mechanism, which is characterized in that the control
System processed includes: discharge pressure signal detection system, magnet exciting coil power supply system, weighing sensor system and the inspection of motor shaft phase
Examining system；The control system controls to adjust the mechanical periodicity curve of electromagnetic force, make the mechanical periodicity curve of electromagnetic force with it is described
Dynamic scrollwork is synchronous with the curve of axial gas separating force for determine scrollwork to be changed, and is made the dynamic scrollwork and described is determined between scrollwork
PV value be not more than 10Mpa*m/s, wherein the PV value is the dynamic scrollwork and the contact stress determined between scrollwork and institute
State the product of scrollwork and the linear velocity for determining mutually to move between scrollwork.
5. a kind of scroll fluid gearshift with floating electromagnetic mechanism, comprising:
At least one dynamic scrollwork, the dynamic scrollwork have first end plate, are fixed with the first spiral shape on the basal plane of the first end plate
Side wall；
At least certain scrollwork, it is described to determine scrollwork with the second end plate, the second spiral shape is fixed on the basal plane of second end plate
Side wall, the first spiral shape side wall are meshed with the second spiral shape side wall；
Rotate drive shaft, the rotation drive shaft driving dynamic scrollwork makes the dynamic scrollwork determine scrollwork relative to described and make rail
Road movement；
Casing, the casing support is described to determine scrollwork and the rotation drive shaft；
When the dynamic scrollwork relative to it is described determine scrollwork and make track movement when, the first spiral shape side wall, second spiral
Moveable, changeable volume is formed between the basal plane of shape side wall, the basal plane of the first end plate and second end plate
Gas chamber and working fluid high-pressure area and area of low pressure；
It is described to determine scrollwork axial floating electromagnetic mechanism and pass through electricity it is characterized by further comprising: determine scrollwork axial floating electromagnetic mechanism
Determine scrollwork described in magnetic drive to make to comply with floating to the dynamic scrollwork；
It is described to determine scrollwork axial floating electromagnetic mechanism and include:
At least one magnetic circuit ring, the magnetic circuit ring are equipped with magnet exciting coil, and the magnetic circuit ring is for generating electromagnetic force；
Suction panel, the suction panel can be attracted or be repelled by the magnetic circuit ring；
Electromagnetic attraction and/or electromagnetic repulsion force between the magnetic circuit ring and the suction panel make the dynamic scrollwork and described determine scrollwork
Axial separation force caused by the gas pressure in the gas chamber and the high-pressure area and the area of low pressure can be overcome,
To keep the dynamic scrollwork and the contact sealing determined between scrollwork；
Further include: control system, the control system are used to control to adjust the size of electromagnetic force and the time phase of electromagnetic force.
6. the scroll fluid gearshift according to claim 5 with floating electromagnetic mechanism, which is characterized in that the electricity
The resultant force of magnetic attraction and/or the electromagnetic repulsion force and auxiliary force can overcome the gas chamber and the high-pressure area and described low
Axial separation force caused by gas pressure in intermediate pressure section, to keep the dynamic scrollwork and the contact determined between scrollwork close
Envelope, wherein the auxiliary force is spring force, the elastic force of elastic material, the elastic force of elastic construction, and/or Fluid pressure.
7. the scroll fluid gearshift according to claim 6 with floating electromagnetic mechanism, which is characterized in that the magnetic
Suction panel described in Lu Huanhe is made of permeability magnetic material and/or permanent-magnet material.
8. the scroll fluid gearshift according to claim 5 with floating electromagnetic mechanism, which is characterized in that the control
System processed includes: discharge pressure signal detection system, magnet exciting coil power supply system, weighing sensor system and the inspection of motor shaft phase
Examining system；The control system controls to adjust the mechanical periodicity curve of electromagnetic force, make the mechanical periodicity curve of electromagnetic force with it is described
Dynamic scrollwork is synchronous with the curve of axial gas separating force for determine scrollwork to be changed, and is made the dynamic scrollwork and described is determined between scrollwork
PV value be not more than 10Mpa*m/s, wherein the PV value is the dynamic scrollwork and the contact stress determined between scrollwork and institute
State the product of scrollwork and the linear velocity for determining mutually to move between scrollwork.
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| CN201910234041.XA CN109899286B (en) | 2019-03-26 | 2019-03-26 | Vortex fluid displacement device with floating electromagnetic mechanism |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112554955A (en) * | 2020-11-26 | 2021-03-26 | 思科涡旋科技(杭州)有限公司 | Floating vortex device sealed by magnetic force |
| CN113606134A (en) * | 2021-06-11 | 2021-11-05 | 浙江科技学院 | Optimization control method for electromagnetic axial dynamic sealing of scroll machine |
| CN114033671A (en) * | 2021-11-09 | 2022-02-11 | 中国人民解放军火箭军工程大学 | Semi-contact type end face clearance compensation device and method for arc helical gear pump |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5669493A (en) * | 1979-11-12 | 1981-06-10 | Hitachi Ltd | Scroll fluid machine |
| JPH03990A (en) * | 1989-05-25 | 1991-01-07 | Daikin Ind Ltd | Scroll type fluid device |
| US5249940A (en) * | 1991-04-26 | 1993-10-05 | Nippon Soken, Inc. | Scroll compressor having a magnet pressing the moving scroll member axially |
| US5252046A (en) * | 1992-07-31 | 1993-10-12 | Industrial Technology Research Institute | Self-sealing scroll compressor |
| US5490769A (en) * | 1993-01-15 | 1996-02-13 | Sanden International (U.S.A.), Inc. | Variable capacity scroll type fluid displacement apparatus |
| JP2000130362A (en) * | 1998-10-26 | 2000-05-12 | Denso Corp | Compressor |
| CN1339088A (en) * | 1999-12-06 | 2002-03-06 | 大金工业株式会社 | Scroll type compressor |
| US20050265879A1 (en) * | 2004-06-01 | 2005-12-01 | Anest Iwata Corporation | Scroll fluid machine |
| CN201687707U (en) * | 2010-04-19 | 2010-12-29 | 上海化工研究院 | Vortex type booster with magnetic sealing device |
| CN105485005A (en) * | 2016-02-01 | 2016-04-13 | 珠海格力节能环保制冷技术研究中心有限公司 | Scroll compressor and air conditioner |
| CN209724648U (en) * | 2019-03-26 | 2019-12-03 | 杭州思旋科技有限公司 | A kind of scroll fluid gearshift with floating electromagnetic mechanism |
-
2019
- 2019-03-26 CN CN201910234041.XA patent/CN109899286B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5669493A (en) * | 1979-11-12 | 1981-06-10 | Hitachi Ltd | Scroll fluid machine |
| JPH03990A (en) * | 1989-05-25 | 1991-01-07 | Daikin Ind Ltd | Scroll type fluid device |
| US5249940A (en) * | 1991-04-26 | 1993-10-05 | Nippon Soken, Inc. | Scroll compressor having a magnet pressing the moving scroll member axially |
| US5252046A (en) * | 1992-07-31 | 1993-10-12 | Industrial Technology Research Institute | Self-sealing scroll compressor |
| US5490769A (en) * | 1993-01-15 | 1996-02-13 | Sanden International (U.S.A.), Inc. | Variable capacity scroll type fluid displacement apparatus |
| JP2000130362A (en) * | 1998-10-26 | 2000-05-12 | Denso Corp | Compressor |
| CN1339088A (en) * | 1999-12-06 | 2002-03-06 | 大金工业株式会社 | Scroll type compressor |
| US20050265879A1 (en) * | 2004-06-01 | 2005-12-01 | Anest Iwata Corporation | Scroll fluid machine |
| CN201687707U (en) * | 2010-04-19 | 2010-12-29 | 上海化工研究院 | Vortex type booster with magnetic sealing device |
| CN105485005A (en) * | 2016-02-01 | 2016-04-13 | 珠海格力节能环保制冷技术研究中心有限公司 | Scroll compressor and air conditioner |
| CN209724648U (en) * | 2019-03-26 | 2019-12-03 | 杭州思旋科技有限公司 | A kind of scroll fluid gearshift with floating electromagnetic mechanism |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112554955A (en) * | 2020-11-26 | 2021-03-26 | 思科涡旋科技(杭州)有限公司 | Floating vortex device sealed by magnetic force |
| CN112554955B (en) * | 2020-11-26 | 2022-06-28 | 思科涡旋科技(杭州)有限公司 | Floating vortex device sealed by magnetic force |
| CN113606134A (en) * | 2021-06-11 | 2021-11-05 | 浙江科技学院 | Optimization control method for electromagnetic axial dynamic sealing of scroll machine |
| CN114033671A (en) * | 2021-11-09 | 2022-02-11 | 中国人民解放军火箭军工程大学 | Semi-contact type end face clearance compensation device and method for arc helical gear pump |
| CN114033671B (en) * | 2021-11-09 | 2023-08-08 | 中国人民解放军火箭军工程大学 | Semi-contact type end face gap compensation device and method for circular arc spiral gear pump |
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|---|---|
| CN109899286B (en) | 2024-04-26 |
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