CN1393639A - Linear compressor driving controlling method and linear compressor driving controlling method for vehicle - Google Patents

Linear compressor driving controlling method and linear compressor driving controlling method for vehicle Download PDF

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Publication number
CN1393639A
CN1393639A CN02124790A CN02124790A CN1393639A CN 1393639 A CN1393639 A CN 1393639A CN 02124790 A CN02124790 A CN 02124790A CN 02124790 A CN02124790 A CN 02124790A CN 1393639 A CN1393639 A CN 1393639A
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CN
China
Prior art keywords
piston
linear motor
linearkompressor
electric current
controlling method
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Granted
Application number
CN02124790A
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Chinese (zh)
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CN1276176C (en
Inventor
长谷川杉松
吉田诚
植田光男
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Panasonic Holdings Corp
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Matsushita Electric Industrial Co Ltd
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Publication of CN1393639A publication Critical patent/CN1393639A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/06—Control using electricity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
    • F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/0005—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 adaptations of pistons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/12—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by varying the length of stroke of the working members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B2203/00—Motor parameters
    • F04B2203/04—Motor parameters of linear electric motors
    • F04B2203/0401—Current
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B2203/00—Motor parameters
    • F04B2203/04—Motor parameters of linear electric motors
    • F04B2203/0402—Voltage
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B2207/00—External parameters
    • F04B2207/02—External pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B2207/00—External parameters
    • F04B2207/03—External temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B2207/00—External parameters
    • F04B2207/04—Settings
    • F04B2207/046—Settings of length of piston stroke

Abstract

The invention provides a drive control method of high efficiency and reliability for a linear compressor of a free piston structure. This drive control method for the linear compressor is provided with a compressing mechanism including a cylinder and a piston and a linear motor actuating the compressing mechanism. The liner motor includes a fixed part, connected to the cylinder and a moving part connected to the piston and generates thrust of the piston. The method includes a first process for energizing the linear motor with a direct current component in start up and a second process for starting movement of the piston from a position already shifted by applying alternating current after that.

Description

Linearkompressor drive controlling method and vehicle Linearkompressor drive controlling method
Technical field
The drive controlling method of the Linearkompressor that the present invention relates to make reciprocating motion of the pistons, compressed refrigerant carry out air conditioning and the drive controlling method of for motor vehicle Linearkompressor.
Background technique
Method for starting-controlling as existing linear vibration motor, proposed to detect displacement, speed or the acceleration of the moving element that constitutes linear motor, and according to the output control of this detection method (for example the spy opens flat 10-243688 communique) to the supply capability of magnet spool.
The method for starting-controlling of this linear vibration motor in the past, as shown in Figure 12, the output pulse that makes the starting initial stage of supplying with coil be minimum value, successively make output last time of output pulse ratio big, make the amplitude of moving element increase to the regulation amplitude.
Te Kaiping 10-243668 communique prevents to be absorbed in the transfinite such overburdening mechanically and the state of the overburdening on the circuit by increasing output gradually.In addition, in this communique, advise,,, can prevent from reliably to transfinite by reducing to increase the ratio of output pulse in the amplitude of oscillator the moment near specified value.
But, in existing formation, exist following problem.
The Linearkompressor that uses in the such refrigeration cycle of air conditioner possesses the compressing mechanism with cylinder part and piston portion and has the moving element that is connected piston portion and be fixed on the linear motor of cylinder standing part partly.And linear motor forms magnetic circuit between moving element and standing part, produce make the thrust that piston portion moves along axial direction after, compressed refrigerant, refrigeration agent is circulated in refrigeration cycle.
But, the Linearkompressor that uses in the refrigeration cycle when compressor stops, filled with liquid refrigeration agent in pressing chamber.Therefore, when compressor start, even interchange (sine wave) electric current that makes specified value in linear motor is by can not pressurized liquid refrigerant.
In addition, increase electric current if resemble the above-mentioned prior art, the thrust that is added in so on the piston will increase, and soon, liquid refrigerant is discharged from pressing chamber.But, in the stage at this starting initial stage, because in the not circulation fully of refrigeration cycle inner refrigerant, therefore, the height pressure reduction in refrigeration cycle is insufficient.Thereby when pressing chamber was discharged, because compression load alleviates sharp, therefore, the stroke that exists piston increased, piston impact cylinder head and the problem that is damaged at liquid refrigerant.
Especially,, during in the early stage assembling, make piston be assemblied in the position of cylinder head one side as far as possible, therefore, can reduce free time (dead volume) volume, improve mechanical efficiency in order to seek to improve volumetric efficiency.
But the optimum position of piston is to be determined behind the state when considering the refrigeration agent compression.
That is, be set under the state that is configured in the compression load (gas spring) that increases refrigeration agent of piston.Therefore, if reduce idle volume between piston and cylinder, so, when under the situation that does not increase compression load, starting,, therefore exist the problem of piston impact cylinder head because piston is not displaced to the position that sucks a side as yet.
In addition, using CO as refrigeration agent 2Occasion, because the characteristic of refrigeration agent, from start refrigeration cycle, producing differential pressure, need the long period, therefore, for the circulating load that improves refrigeration agent, in refrigeration cycle the early stage height pressure reduction that produces, if successively the sine-wave current increase is gone down, so, load alleviates sharp with regard to existing, the bigger problem of possibility of piston impact cylinder.
In addition, in the occasion of utilizing Linearkompressor as the compressor of for motor vehicle air conditioner, the vibration that the engine of powered vehicle and the drive motor of electric car cause and approximately increase 30G from the vibration that the impact on the road surface in travelling causes.Because the structure of free-piston, if increase 30G from the outside to axial direction, so, even under the state of not switching in linear motor, piston also will move several millimeters.Therefore, piston because of from the vibration of outside in the timing of the first side shifting of piston, if in linear motor by the starting current of sine wave shape, so, the possibility of piston impact cylinder head will increase.In addition, in the occasion that is loaded on the electric car,, therefore, need excellent in efficiency, starting control that reliability is high indispensably because Linearkompressor drives by storage battery.
Summary of the invention
Therefore, the object of the present invention is to provide linear compression engine efficiency height and the high drive controlling method of reliability that makes the free-piston structure.
The drive controlling method of the Linearkompressor of the present invention of scheme 1 record is such drive controlling method, promptly, the compressing mechanism that in seal container, possesses compressed refrigerant, and the linear motor that makes this compressing mechanism work, described compressing mechanism has cylinder and piston, described linear motor has the standing part that is connected with described cylinder, and the moving element that is connected with described piston, and this drive controlling method produces thrust by described linear motor to described piston, it is characterized in that it has the 1st operation of passing through the electric current of flip-flop when starting in described linear motor, and the 2nd operation of starting described piston in advance from the mobile position by the electric current of increasing exchanges afterwards.
The present invention of scheme 2 record is characterized in that, it has in the drive controlling method of the Linearkompressor of scheme 2 records, after described the 2nd operation, stop the 3rd operation of flip-flop energising.
The present invention of scheme 3 records, it is characterized in that, it has in the drive controlling method of the Linearkompressor of scheme 2 records, described Linearkompressor, condenser, puffing device and vaporizer are connected into ring-type constitute refrigeration cycle, and the pressure checking device of the refrigerant pressure of high pressure one side that detects described refrigeration cycle is set, when the refrigerant pressure that detects with described pressure checking device surpasses authorized pressure, stop the energising of the flip-flop in described the 3rd operation, after described the 3rd operation, successively electric current is increased to the 4th operation of setting value.
The present invention of scheme 4 records, it is characterized in that, it has in the drive controlling method of the Linearkompressor of scheme 2 records, calculate electric power after detecting the electric current of described linear motor and voltage, when the described electric power of calculating surpasses specified value, stop the energising of the flip-flop in described the 3rd operation, after described the 3rd operation, successively electric current is increased to the 4th operation of setting value.
The drive controlling method of the Linearkompressor of scheme 5 records is such drive controlling methods, promptly, the compressing mechanism that in seal container, possesses compressed refrigerant, and the linear motor that makes this compressing mechanism work, described compressing mechanism has cylinder and piston, described linear motor has the standing part that is connected with described cylinder, and the moving element that is connected with described piston, this drive controlling method produces thrust by described linear motor to described piston, it is characterized in that, at prestart, after in described linear motor, passing to the electric current of flip-flop described piston is moved, detect the amount of movement of described piston by the piston position detection facility, and determine resonant frequency according to the amount of movement that detects with described piston position detection facility.
The present invention of scheme 6 records, it is characterized in that, in the method for starting-controlling of the Linearkompressor that scheme 5 is put down in writing, when the stroke amount of the described piston of calculating from fixed described resonant frequency than with the stroke amount of the described piston of described piston position detection facility detection hour, gathering way of the alternating current (a.c.) that passes through in described linear motor is slack-off with making.
The drive controlling method of the Linearkompressor of the present invention of scheme 7 records is such drive controlling methods, promptly, pass through Linearkompressor, condenser, puffing device and vaporizer constitute aircondition, described Linearkompressor possesses the compressing mechanism of compressed refrigerant in seal container, and the linear motor that makes this compressing mechanism work, described compressing mechanism has cylinder and piston, described linear motor has the standing part that is connected with described cylinder, and the moving element that is connected with described piston, this drive controlling method produces thrust by described linear motor to described piston, it is characterized in that, detect the temperature of described vaporizer by temperature testing equipment, room temperature, and at least a temperature in the outdoor temperature, determine the current value of flip-flop required when starting from the temperature that detects by described temperature testing equipment, and when starting, in described linear motor, make fixed described current value energising.
The drive controlling method of for motor vehicle Linearkompressor of the present invention of scheme 8 records is such drive controlling methods, promptly, the compressing mechanism that in seal container, possesses compressed refrigerant, and the linear motor that makes this compressing mechanism work, described compressing mechanism has cylinder and piston, described linear motor has the standing part that is connected with described cylinder, and the moving element that is connected with described piston, this driving-controlling device produces thrust by described linear motor to described piston, it is characterized in that, it has the 1st operation of passing through the electric current of flip-flop when starting in described linear motor, and the 2nd operation of starting static described piston afterwards by alternating current (a.c.).
The present invention of scheme 9 records, it is characterized in that, in the drive controlling method of for motor vehicle Linearkompressor that scheme 8 is put down in writing, be provided with the forced vibration amount detection facility that detects vibration acceleration, in described the 1st operation, make corresponding to the amplitude direction of the described piston of following the forced vibration that detects with described forced vibration amount detection facility and the electric current energising of amplitude amount.
The present invention of scheme 10 records, it is characterized in that, in the drive controlling method of for motor vehicle Linearkompressor that scheme 8 is put down in writing, detect the forced vibration amount according to the induced voltage of being responded to by described linear motor, and in described the 1st operation, make electric current energising corresponding to the amplitude amount of the described piston of following the described forced vibration amount that has detected.
The present invention of scheme 11 records, it is characterized in that, in the drive controlling method of for motor vehicle Linearkompressor that scheme 8 is put down in writing, be provided with by from the vibration detection of outside regenerative current detection facility at the electric current of described linear motor regeneration, and in described the 1st operation, make electric current energising corresponding to the amplitude amount of the described piston of the described electric current of following detection.
Description of drawings
Fig. 1 is an embodiment's the side sectional view of Linearkompressor of the formation of the Linearkompressor that uses in the present invention.
Fig. 2 is the starting control flow of one embodiment of the present of invention.
Fig. 3 is that the amplitude center of expression piston adds the figure of the relation of direct current (d.c.) relatively.
Fig. 4 is the figure that is illustrated in the displacement at the amplitude of sinusoidal wave piston when going up the external dc drift current and amplitude center.
Fig. 5 is the drive controlling flow process of other embodiments of the invention.
Fig. 6 is the skeleton diagram of the drive controlling of expression other embodiments of the invention.
Fig. 7 is the skeleton diagram of the drive controlling of expression other embodiments of the invention.
Fig. 8 is the quality m that expression piston and movable part grade 1, spring mechanism spring constant k 1, pressing chamber gas spring k 2Figure with the relation of resonant frequency.
Fig. 9 is the skeleton diagram of the drive controlling of expression other embodiments of the invention.
Figure 10 is the skeleton diagram that is illustrated in the embodiment of the drive controlling that is suitable for the Linearkompressor occasion in for motor vehicle aircondition.
Figure 11 is the performance plot of intensity of the relative forced vibration of variation of expression induced voltage.
Figure 12 is the plotted curve of the starting characteristic of the existing Linearkompressor of expression.
Embodiment
The drive controlling method of the Linearkompressor of the 1st example of the present invention, have the 1st operation that the time in linear motor, makes the electric current energising of flip-flop in starting, afterwards by the electric current of increasing exchanges, from the 2nd operation of starting position, the position starting piston that moves in advance.Usually, under the environmental conditions of sleeping starting etc., become starting from the liquid compression state.Therefore, from pressing chamber drain refrigeration agent, must after increasing current value, linear motor increase the amplitude amount of piston for rapidly.But, if increase the amplitude amount of piston, so, owing in refrigeration cycle, do not produce height pressure reduction fully, therefore, after liquid refrigerant is discharged, thereby might compression load lighten suddenly, the stroke of piston extends the impact that causes that the piston countercylinder covers sharp.But, if according to this example, because by when starting, making flip-flop current direction linear motor, piston is moved to suck a side position, and draw back the distance between piston and the cylinder head, therefore, even the stroke of piston extends sharp, piston can not impact cylinder head yet and damage.
The 2nd example of the present invention in the drive controlling method of the Linearkompressor of the 1st example, after the 2nd operation, stops the operation of flip-flop energising.If according to this example, after starting, it is big that the height pressure reduction of refrigeration cycle becomes, if increase the circulating load of refrigeration agent, reduce the danger of piston impact cylinder, so, lead to the electric current of the flip-flop of linear motor by elimination, carry out normal sine wave drive, piston is not impacted, more can start control expeditiously.
The present invention's the 3rd example is in the drive controlling method of the Linearkompressor of the 1st example, when detecting refrigerant pressure with pressure checking device and surpass authorized pressure, be increased to electric current the operation of setting value successively.If according to this example, by increasing circulating mass of refrigerant, the height pressure reduction that detects the refrigeration agent cycle with pressure checking device becomes big situation, according to this detected pressures, and the current value of sine-wave current is increased to setting value, just can avoid the impact of piston, make the operation volume-variable of piston, control refrigerating capacity expeditiously.
The 4th example of the present invention in the drive controlling method of the Linearkompressor of the 1st example, is calculated electric power after detecting the electric current of linear motor and voltage, successively electric current is increased to the operation of setting value when the electric power of calculating surpasses specified value.If according to this example, because the electric power according to linear motor detects the situation that circulating mass of refrigerant increases, the change of the height pressure reduction of refrigeration cycle is big, therefore, needn't possess the such pressure checking device of the 3rd example, by successively the current value of sine-wave current being increased to setting value, just can avoid piston impact, make the operation volume-variable of piston, control refrigerating capacity expeditiously.
The drive controlling method of the Linearkompressor of the 5th example of the present invention is such drive controlling method, promptly, when starting, the electric current that makes flip-flop in linear motor is by the back mobile piston, detect the amount of movement of piston with the piston position detection facility, detect resonant frequency from the amount of movement that detects with the piston position detection facility, determine the frequency of alternating current (a.c.) from described resonant frequency.If according to this example, by determining resonant frequency when the starting, even, also can start control with the resonant frequency that is suitable for the pressure spring constant from the starting of liquid compression state.
The 6th example of the present invention is such example, promptly, in the drive controlling method of the Linearkompressor of the 5th example, than the stroke amount of the piston that detects with the piston position detection facility hour, make gathering way of the alternating current (a.c.) that in linear motor, passes through slack-off in the stroke amount of the piston of calculating from fixed resonant frequency.If according to this example, on one side just can prevent the impact of piston countercylinder lid, Yi Bian carry out high efficiency driving.
The drive controlling method of the Linearkompressor of the 7th example of the present invention is such drive controlling method, promptly, detect at least a temperature in temperature, room temperature and the outdoor temperature of temperature, vaporizer of condenser by temperature testing equipment, determine the electric current of needed flip-flop when the starting according to the temperature that detects with temperature testing equipment, and when starting, make definite current value pass through linear motor.If according to this example, according to the temperature computation load that detects with temperature testing equipment, determine DC current values that piston is moved according to this information on load, and when sleeping starting, drift current (the mobile needed electric current of established amount) is flow through, in addition, owing to form the drift current value of the state of load-responsive, therefore under any loading condiction, can both start control in the best way.
The drive controlling method of for motor vehicle Linearkompressor of the 8th example of the present invention during greater than specified value, will be added direct current (d.c.) at the amount of movement of described piston in described linear motor.If according to this example, by forced vibration, even piston is want to vibrate at axial direction from the outside, because when linear motor starts, the amount of movement of piston is controlled in the specified value, therefore, can prevents that the stroke of piston from becoming at predetermined value stroke in addition.
The 9th example of the present invention is such example, promptly, in the drive controlling method of for motor vehicle Linearkompressor of the 8th example, be provided with the forced vibration amount detection facility that detects vibration acceleration, and in the 1st operation, make corresponding to the amplitude direction of the piston of following the forced vibration that detects with forced vibration amount detection facility and the electric current energising of amplitude amount.If according to this example,, therefore can carry out more reliable starting control owing to start control behind the current value of direct current on the linear motor when determining to be added to starting or interchange by the vibration information that detects.
The 10th example of the present invention is such example, promptly, in the drive controlling method of for motor vehicle Linearkompressor of the 8th example, detect the forced vibration amount according to the induction current that produces at linear motor, and in the 1st operation, make corresponding to the amplitude direction of the piston of following the forced vibration that detects with forced vibration amount detection facility and the electric current energising of amplitude amount.If according to this example, owing to start control behind the direct current on forced vibration amount that detects according to the induced voltage that produces at linear motor and the linear motor when determining to be added to starting or the current value of interchange, therefore, can start control more reliably.
The 11st example of the present invention is such example, promptly, in the drive controlling method of for motor vehicle Linearkompressor of the 8th example, be provided with according to from the vibration detection of outside regenerative current detection facility at the electric current of linear motor regeneration, and in the 1st operation, make electric current energising corresponding to the vibratory output of the piston of the electric current of following detection.If according to this example, because with the electric current of regenerative current detection facility detection by in linear motor, regenerating from the vibration of outside, and start control behind the current value of direct current on the linear motor when determining to be added to starting or interchange, therefore can carry out more reliable starting control.
[embodiment]
An embodiment of the formation of the Linearkompressor that uses in the present invention at first, is described.
Fig. 1 is the side sectional view of the Linearkompressor of present embodiment.In addition, formation shown in Figure 1 is set in the seal container fully, represents but omitted seal container in the figure.
Linearkompressor is with the compressing mechanism of compressed refrigerant and the linear motor of this compressing mechanism work is purchased in seal container.The piston 207 that compressing mechanism has cylinder 209 and movably is supported in the axial direction freedom of this cylinder 209, and constitute pressing chambers 206 by cylinder 209 and piston 207.Linear motor has standing part 202 that is connected with cylinder 209 and the moving element 204 that is connected with piston 207, and piston 207 is produced the thrust of axial direction by magnetic force.In Fig. 1, be illustrated in the situation that has disposed permanent magnet in the moving element 204, in standing part 202, disposed coiler part 203, but the formation of generation magnetic force also can be other formation.
Piston 207 is being supported via piston rod 208 usefulness spring mechanisms 205.Spring mechanism 205 is connected with piston rod 208 at core, is connected with cylinder 201 with standing part 202 at outer peripheral portion.Therefore, piston 208 is slidably disposed on axial direction by the elastic force of spring mechanism 205, and becomes the free-piston structure.Discharge chamber 201 is arranged on the position of contiguous pressing chamber 206, separates with cylinder head between pressing chamber 206 and discharge chamber 201.In this cylinder head 210, be provided with the tap hole of discharging chamber 201 with being discharged to pressing chamber 206 refrigerant compressed.All these parts are supported by elastomer in seal container.In addition, in seal container, be provided with the suction pipe of suction refrigeration agent and the discharge tube of discharging refrigerant.These suction pipes are connected the back with discharge tube by vaporizer, condenser and decompressor and constitute refrigeration cycle with pipe arrangement.
In the above-described configuration, if to coiler part 203 energising of linear motor, so between standing part 202 and moving element 204, according to not coming bright lefft-hand rule to produce and the proportional magnetic force of electric current, being thrust.According to this thrust, the driving force that moves along the axial direction of moving element 204 in action.Therefore, the piston 207 of connection moving element 204 is moved.By in coiler part 203, alternating current (a.c.) being passed through, in moving element 204, will alternatively produce positive-reverse thrust herein.Then, piston 207 moves back and forth by this mutual positive-reverse thrust that produces.In addition, by in coiler part 203, direct current (d.c.) being passed through, according to the position, reciprocating center (amplitude center) of the current direction of being switched on and size, piston 207 with change.Therefore, just can make the position of piston 207 move to the position that sucks a side from assigned position by pass to direct current (d.c.) to coiler part 203.
In addition, so-called herein assigned position is meant predefined position when the assembling of piston 207, and so-called suction position from assigned position is meant that piston 207 is in position that the direction of the space development of pressing chamber 206 moves.In addition, the so-called side position of discharging is meant that piston 207 is in position that the space-constrained direction of pressing chamber moves.
By the to-and-fro motion of piston 207, discharge to discharging chamber 201 at pressing chamber 206 compressed refrigeration agents, and output to the outside of seal container from discharge tube.
Fig. 2 is the starting control flow of one embodiment of the present of invention.
When linear compressor start, pass to the coiler part 203 of linear motor and to make piston 207 to sucking the flip-flop electric current (S1) that a side position moves.Then, make piston 207 to suck direction move and increase gap between piston 207 and the cylinder head 210 after pass to normal sine-wave current (S2) to the coiler part 203 of linear motor.In other words, electric current I=I 0Sin ω t and Δ I (drift current) addition become I=I 0Sin ω t+ Δ I.Therefore, in the thrust of linear motor, promptly make that piston 207 is reciprocating encourages additional flip-flop in the power of shaking, the amplitude center of piston 207 moved to suck a side position, move back and forth under the state of widening in the gap that makes piston 207 and cylinder head 210, refrigeration agent is compressed.In addition, when starting, also can make the electric current I=I of sine-wave current and flip-flop current summation 0Sin ω t+ Δ I passes through.
Fig. 3 represents the relation of the amplitude center of piston to additional direct current (d.c.).
The moving element 204 that the electric current of flip-flop becomes linear motor pulls to the torque that sucks a side position, and the torque of generation and this current value are proportional.Therefore, by control current value, side-play amount that just can control piston 207.In possessing the air conditioner of Linearkompressor,, need start control reliably even under various environmental conditionss.Especially when sleeping starting, must the full of liquid refrigeration agent pressing chamber 206 in.Especially to increase the amount of liquid refrigerant in the low occasion of outside air temperature.And, because liquid refrigerant is difficult to compression, therefore, in the to-and-fro motion of piston 207 in setting in the early stage, in the gap between piston 207 and cylinder head 210, drain refrigeration agent fully.Therefore at the starting initial stage, direct current (d.c.) is flowed to the coiler part 203 of linear motor, piston 207 is moved to sucking a side position, afterwards, the current value of increasing exchanges.Like this, liquid refrigerant is discharged from quickly.If liquid refrigerant is discharged from, load alleviates sharp so, the stroke (amplitude) of piston 207 will extend, but makes piston 207 be offset control to sucking a side position from the starting initial stage, so piston 207 can not produce impacts by countercylinder lid 210.
Fig. 4 is illustrated in the amplitude of the piston 207 when having added direct offset current in the sine wave and the displacement at amplitude center.In Fig. 5, amplitude curve (a) expression is the amplitude of the piston 207 of additional direct current current applications not.Amplitude curve (b) expression has added the amplitude of the piston 207 of direct current (d.c.) occasion.In addition, in the occasion of having added reverse direct current (d.c.), that displacement imaging amplitude curve (c) is such.As shown in the figure, by additional direct current (d.c.), displacement takes place in the amplitude center, but amplitude is constant.If the sine-wave current from be added to linear motor loses the direct current (d.c.) composition, the amplitude center of piston will be indexed to compression one side so.By eliminating flip-flop, just can raise the efficiency.Therefore, under the motion state beyond the starting, preferably only drive with alternating component.
Fig. 5 represents the drive controlling flow process of other embodiments of the invention.
When linear compressor start, make coiler part 203 pass to the flip-flop electric current (S1) that piston 207 is moved to suction one side position to linear motor.Then, make piston 207 after sucking a side shifting and having increased gap between piston 207 and the cylinder head 210, passing to normal sine-wave current (S2) to the coiler part 203 of linear motor.Be electric current I=I 0Sin ω t and Δ I (drift current) addition, become I=I 0Sin ω t+ Δ I.Therefore, in the thrust of linear motor, promptly make piston 207 reciprocating encouraging add flip-flop in the power of shaking, make in the amplitude of piston 207 mind-set suck a side position and move, move back and forth compressed refrigerant under the state of widening in the gap of piston 207 and cylinder head 210.
If proceed the refrigeration agent compression at the appointed time, so, in refrigeration cycle, produce the pressure difference of high low pressure, and increase the pressure that bear on piston 207 surfaces.The generation of the gas spring by such compressed refrigerant, piston 207 are moved to sucking a side position again.If become such state, just do not need the drift current at initial stage.Therefore, in the present embodiment, if begin through the T time from starting, supposition fully produces the gas spring of compressed refrigerant so, and measure from the time of starting beginning, judge whether to have passed through the T time (S3), in the occasion of having passed through the T time, stop to supply with flip-flop electric current (S4), only make I=I to the coiler part 203 of linear motor 0The sine-wave current of sin ω t by, carry out drive controlling.
Fig. 6 is the skeleton diagram of the drive controlling of expression other embodiments of the invention.
In the present embodiment, supply with direct current (d.c.) to inverter 104, by the voltage detecting Equipment Inspection voltage of this moment from power supply 101.The electric current that flows to linear motor 112 from inverter 104 is detected current detecting equipment 107.The electric current that flows to linear motor 112 is by 105 controls of inverter control section.
Refrigeration cycle is to constitute like this, promptly connects vaporizer 113, condenser 116, puffing device 119 with pipe arrangement successively with compressor.In refrigeration cycle, be provided with four-way valve 121, by the conversion of this four-way valve 121, can change the function of vaporizer 113 and condenser 116 and be used.In vaporizer 113, be provided with the gas fan 114 that vaporizer is used, in condenser 116, be provided with the gas fan 117 that condenser is used, promote the heat exchange of air and refrigeration agent.For the optiumum control refrigeration cycle, puffing device control apparatus 120 control puffing devices 119.High pressure detection facility 122 detects the pressure of refrigeration agent of the high pressure one side refrigerant piping of the refrigeration cycle of flowing through.Among the figure, high pressure detection facility 122 detects the pressure of the discharge pipe arrangement of compressor.
At the starting initial stage of compressor, pass to linear motor 112 and to make piston to the electric current that sucks the flip-flop that a side position moves.Afterwards, make sinusoidal wave alternating current (a.c.) overlapping and pass to I=I to linear motor 112 0The electric current of sin ω t+ Δ I.Piston carries out amplitude motion and loop compression refrigeration agent under mobile status.The little by little additional height pressure difference of refrigeration agent in the refrigeration cycle.After compressor start, inverter control section 105 is from increase supply the at leisure electric power of linear motor 112 of inverter 104.Inverter control section 105 is according to calculating electric power from the control signal of the voltage detecting equipment 103 of the input voltage that detects inverter 104 with from the control signal of the current detecting equipment 107 of the input current that detects linear motor 112.Then, power value and the predefined setting power value that detects compared, when the power value that detects becomes big, stop at the direct current (d.c.) of compressor start initial stage energising, and be transformed into just sine wave AC electric current I=I 0Carry out drive controlling after the energising of sin ω t.Therefore, do not use sensor etc., just can with low-cost, start control expeditiously.In addition, except voltage detecting equipment 103 detects the input voltage of inverter 104, also can detect from the output voltage of inverter 104 to linear motor 112.
As present embodiment,, just can detect the refrigerant pressure in the refrigeration cycle, control inverter 104 by differentiate the height pressure reduction of the refrigeration agent in the refrigeration cycle according to the needed electric power of the driving of linear motor 112.
In addition, also can detect the refrigerant pressure in the refrigeration cycle according to testing signal, control inverter 104 from illustrated high pressure detection facility 122.Not necessarily to directly detect refrigerant pressure herein, also can differentiate refrigerant pressure by detecting the pipe arrangement temperature.By detect the pressure of high pressure one side of refrigeration cycle with high pressure detection facility 122,, need not pass to superfluous direct current (d.c.) and just can carry out high efficiency starting control even under various environmental conditionss, also can start more reliably.
Fig. 7 is the skeleton diagram of the drive controlling of expression other embodiments of the invention.
Present embodiment possesses the piston position detection facility 124 of the piston position that detects Linearkompressor.In addition, additional identical symbol and omit its explanation in the formation of the formation identical functions that has and illustrated.Even suppose it also is identical in following embodiment.
Piston position detection facility 124 detects the amplitude amount and the amount of movement of piston.At the compressor start initial stage, pass to the direct current (d.c.) of reverse specified value from inverter to linear motor, so that piston is moved to discharging a side position.By passing to reverse direct current (d.c.), piston will move to discharging a side position.Detect the amount of movement of pistons by piston position detection facility 124, connect the spring constant of the elastic member of piston from the addendum modification computing of the piston of per unit electric current.
Among Fig. 8, represent the quality m that piston and movable part grade herein 1, spring mechanism 205 shown in Figure 1 spring constant k 1, pressing chamber gas spring k 2Relation with resonant frequency.This figure (a) is the gas spring k of pressing chamber 2Resonant frequency when motionless, this figure (b) are the gas spring k of pressing chamber 2Resonant frequency when mobile.
Resemble as shown in Figure 8, according to spring constant k 1Gas spring k with pressing chamber 2, piston mass m size, determine the calculation of equipments resonant frequency f of air inclusion spring at least by resonant frequency.In addition, in the early stage must be to sucking a side position when moving, determine to make the current value of the direct current (d.c.) that piston moves from the size of load.
If measure to finish,, determine that with regard to using the driver frequency that equipment is determined starts control by resonant frequency in case stop the energising of the direct current (d.c.) that is used to measure.In addition, when the needs drift current, just pass to the drift current that is determined, make piston after suction one side position moves, make sine wave overlapping, and passing to I=I to linear motor 0The electric current of sin ω t+ Δ I.Piston carries out amplitude motion under mobile status, inverter control section 105 is according to the energising that stops direct current (d.c.) from the position of piston information of piston position detection facility 124, and passes to sine-wave current I=I to linear motor 112 0Sin ω t, carry out drive controlling.
If according to present embodiment, when just can protect to the different compressor of characteristic of environmental conditions and refrigeration agent, the starting Linearkompressor.
On the other hand, gas spring constant k 2According to load and operating condition change.According to from the position of piston information of piston position detection facility 124 shown in Figure 8, at least from the detection current information of linear motor current detecting equipment 107 and the spring constant k of pressure spring 1Calculate the changes stroke amount of piston, when this variable quantity is bigger than specified value, preferably control, so that the speedup acceleration of the electric current of switching on to linear motor 112 is diminished.
Fig. 9 is the skeleton diagram of the drive controlling of expression other embodiments of the invention.
Present embodiment possesses temperature testing equipment 102 and load arithmetic facility 125.
The signal of the Temperature Detector 119 that the condenser of the temperature of the Temperature Detector 118 that temperature testing equipment 102 inputs are used from the vaporizer of the temperature that detects vaporizer 113, the room temperature detector 117 that detects room temperature, detection condenser is used or the outdoor temperature detector 115 of the temperature outside the sensing chamber.Load arithmetic facility 125 is according to the information calculations load from temperature testing equipment 102.Load arithmetic facility 125 computings at sleeping, starting initial stage, needed load in the drive controlling such as weight of the state of the compressor of restarting or driving again etc. after stopping and load once, at least whether to need (computing) drift current, in addition, if necessary, with DC current values and the electric current acceleration-deceleration of computing corresponding to the size of load.
When compressor start, according to the information from load arithmetic facility 125, inverter control section 105 will switch the power component of inverter 104, starting control linear motor 112.
Action when load arithmetic facility 125 is judged as the mode of falling asleep for example below will be described.
At the starting initial stage, in linear motor 112, pass to the direct current (d.c.) of regulation, in case make piston after sucking side position skew, the sine-wave current of specified value is overlapping with making, and passes to I=I 0The electric current of sin ω t+ Δ I moves back and forth piston.The height pressure difference of the refrigeration agent in the refrigeration cycle becomes big gradually.If it is big that the height pressure reduction of this refrigeration agent becomes, so, the temperature of condenser 113 will rise, and the temperature of vaporizer 116 will descend.Therefore, in temperature testing equipment 102, detect the signal of the Temperature Detector of using from condenser 118 or vaporizer 119, and in load arithmetic facility 125 its load of computing, impose a condition if reach, just stop direct current (d.c.), pass to the sine wave AC electric current I=I of regulation 0Sin ω t.Afterwards, according to the temperature information of each device, carry out drive controlling according to predetermined electric current acceleration.
Figure 10 is that expression makes Linearkompressor be applicable to embodiment's the skeleton diagram of the drive controlling of for motor vehicle aircondition occasion.
At first, illustrate about the 1st embodiment.
Because the vibration on road surface and the vibration of engine, if increase the vibration of 30G on the axis of the piston portion of Linearkompressor, so, the spring mechanism of supporting piston will resonate, and make piston reciprocates by external vibration.Therefore, in the starting of for motor vehicle Linearkompressor control, when starting, piston is limited in assigned position after in Linearkompressor, passing to direct current (d.c.).In addition, also can be for the phase place of the amplitude control sine-wave current of the piston of external vibration, and hang up regeneration brake.Like this, suppress from the outside forced vibration, the free vibration of piston is limited in assigned position after, pass to the sine-wave current I=I of target 0Sin ω t, the to-and-fro motion of beginning piston.Therefore, in when starting,, because piston is suppressed in the specified value, therefore,, also can makes piston can not impact cylinder head and increase the circulating load of refrigeration agent even make piston reciprocates even continue from the forced vibration of outside.
The following describes about the 2nd embodiment.
Forced vibration amount detection facility 123 detects the vibration acceleration of compressor.Inverter control section 105 is according to the signal from this forced vibration amount detection facility 123, determine and output corresponding to movement direction and the positive and negative direction amplitude amount, direct current (d.c.) and the current value of the piston of the forced vibration of following external factor to cause.Promptly, when proceeding in the process from the forced vibration of outside, by the direct current (d.c.) that matches with it to inverter 104 outputs from inverter control section 105, and the power switched element, start control after being suppressed at piston below the specified value, just can avoid the impact of piston, can carry out the starting control of the higher for motor vehicle Linearkompressor of reliability.
Then explanation is about the 3rd embodiment.
If piston is because external factor is made amplitude motion, so, linear motor just becomes generator, and produces induced voltage on coil.Figure 11 is the performance plot of variation of the intensity of expression induced voltage relative forced vibration.Detect this induced voltage,, determine to be used for to suppress the current value of the direct current (d.c.) of piston vibration according to the magnitude of voltage that detects.And, when the starting of compressor and running, by with the additional direct current (d.c.) of the current value of determining, even from the forced vibration of outside continuing, also can reliably piston be suppressed in the specified value.And,,, also can not use vibrating detector, start control with low-cost, high efficiency even in the occasion that has increased from the vibration of outside by piston is suppressed in the specified value.
Next, illustrate about the 4th embodiment.
If piston is made amplitude motion because of external factor, linear motor just becomes generator so, and electric current is to the power supply one side regeneration of inverter 104.Calculate the power of shaking of encouraging detect the electric current that is reproduced with the regenerative current detection facility after, the control electric current is encouraged the power of shaking so that eliminate this.That is,, also can reduce the electric current of linear motor or make the drift current of flip-flop overlapping, avoid impacting, so that make piston not impact cylinder head even encourage the power of shaking from outside mobile piston.In addition, in the process of control Linearkompressor,, and have according to this information and can suppress control even because external vibration and forcibly make piston make amplitude motion also can detect the external vibration amount from current value with the regenerative current detection facility.
In addition, in the above-described embodiments, used hermetic compressor to describe, but gas, for example air and other gas beyond also can compressed refrigerant with refrigeration agent, in addition, even, also can be open compressor about the form of compressor.
Can understand from above-mentioned explanation, the present invention is in the starting control of the Linearkompressor of free-piston structure, in linear motor, make the electric current energising of flip-flop during by starting, make piston in advance to sucking a side shifting, between piston and cylinder head, after guaranteeing to be used for the space of refrigeration agent compression, make the sine wave AC electric current overlapping again to the linear motor direction.Therefore, even under the environmental conditions of sleeping starting,, therefore can make the compressed refrigerant circulation from the liquid compression state owing to adopt big stroke.In addition, under the liquid compression state, pressure spring becomes, and stroke big, piston does not extend.If begin the just pressure difference of pressure of auxiliary refrigerating circuit from the liquid compression state, so, pressure spring lightens quickly, even the electric current of the linear motor of flowing through is identical, the amplitude amount of instantaneous time piston also can increase.Therefore, in the early stage, if do not make the drift current energising in advance, piston will impact cylinder head so.
But the present invention can start control while the reliability that improves piston, Linearkompressor that free-piston is constructed when sleeping starting.
In addition, if the present invention is after starting, it is big that the height pressure reduction of refrigeration cycle becomes, and the circulating load of refrigeration agent increases, the danger of piston impact cylinder reduces, so, owing to will lose the electric current of the flip-flop of switching on, carry out normal sine wave drive to linear motor, therefore, piston can not produce impact, and the joule loss of the electric current of the motor coil that can reduce to flow through and the loss that drives the inverter of linear motor, can carry out high efficiency starting control.
In addition; because the present invention detects the pressure of high pressure one side of refrigeration cycle; detected pressure signal and setting value are compared; greater than setting value the time, stop to be added to the direct current (d.c.) in the linear motor, therefore; even under any environmental conditions; also can often monitor the pressure of high pressure one side, can guarantee reliably that piston does not impact the state of cylinder head and cuts off the drift current of piston, can and start control expeditiously with higher reliability.
In addition, the present invention passes to electric current with specified value to linear motor when starting, calculate electric power from the electric current and the voltage of linear motor, the power value and the setting value that calculate are compared, when the power value that calculates is big, just increase the electric current that is applied to linear motor successively.Like this, the electric power amount that can obtain detection load simply just from electric current and voltage by linear motor, and will accelerate to setting value successively to the sine-wave current of linear motor energising.The impact of piston countercylinder can be prevented reliably, compression efficiency can be improved simultaneously.
In addition, because the present invention is when starting, pass to the starting current of sine wave shape, detect piston position, according to this detected piston position information, by detecting to the amplitude amount of the piston of electric current detection load simply, determine gathering way of the sine-wave current of in linear motor, switching on according to the size of load, therefore, even the refrigeration agent difference that environmental conditions changes and uses, when starting, piston can not impact cylinder yet, and can both carry out best starting control under each load condition.
In addition, the stroke amount that the present invention will be in advance determines from the thrust constant of linear motor and spring constant etc. with from the stroke amount of piston position detection facility relatively, when the stroke amount of the piston of calculating by the resonant frequency of determining than the stroke amount of the piston that detects with the piston position detection facility hour, just make gathering way of the alternating current (a.c.) of in linear motor, switching on slack-off.Just can prevent the impact of piston countercylinder on one side, Yi Bian carry out high efficiency driving.
In addition, the present invention detects at least a temperature in temperature, room temperature and the outdoor temperature of temperature, vaporizer of condenser by temperature testing equipment, determine the current value of flip-flop required when starting from the temperature that detects by temperature testing equipment, and when starting, definite current value is passed through.If according to the present invention, because according to the DC current values of determining by the temperature computation load of temperature testing equipment detection and according to this information on load piston is moved, when sleeping, drift current is flow through, and formation is corresponding to the drift current of load condition, therefore, under any loading condiction, can start control best.Can also determine current increasing rate.
In addition, thereby since the present invention have starting the time in linear motor, make flip-flop the electric current energising the 1st operation and after this by passing to the 2nd operation that alternating current (a.c.) starts static piston, therefore, even owing to piston is vibrated at axle direction from the forced vibration of outside, therefore starting piston when the starting of linear motor because after static can prevent also that piston (stroke) from becoming the stroke beyond the predetermined value.
In addition, the present invention is provided with the forced vibration amount detection facility that detects vibration acceleration, and in the 1st operation, make corresponding to the amplitude direction of the piston of following the forced vibration that detects with forced vibration amount detection facility and the electric current of amplitude amount and pass through, owing to start control after the DC current values in the linear motor when determining to be added to starting, therefore can start control more reliably according to the vibration information that detects.
Therefore, in the time of especially on being loaded in electric car, do not need superfluous electric power just can start for motor vehicle compressor of control expeditiously.
In addition, the present invention detects the forced vibration amount from the induced voltage that produces linear motor, and in the 1st operation, make corresponding to the amplitude direction of the piston of following the forced vibration that detects with forced vibration amount detection facility and the electric current of amplitude amount and pass through, owing to, therefore can start control more reliably according to starting control after the DC current values in the linear motor of detected forced vibration amount when determining to be added to starting from the induced voltage that linear motor, produces.
In addition, the present invention is provided with according to from the vibration detection of the outside regenerative current detection facility by the electric current of linear motor regeneration, and the electric current corresponding to the amplitude amount of following the piston that detects electric current is passed through, owing to detect the electric current of regenerating with the regenerative current detection facility by linear motor according to vibration from the outside, and start control after the DC current values in the linear motor when determining to be added to starting, therefore can start control more reliably.

Claims (11)

1. the drive controlling method of a Linearkompressor, this Linearkompressor possesses: the compressing mechanism with cylinder and piston, and the linear motor that makes this compressing mechanism work, described linear motor has the standing part that is connected with described cylinder, and the moving element that is connected with described piston, and described piston is produced thrust by described linear motor, it is characterized in that, be included in the 1st operation that starting the time makes flip-flop in linear motor electric current flows through, and after this by the electric current of increasing exchanges, thereby the 2nd operation of starting described piston from the position of moving in advance.
2. as the drive controlling method of the Linearkompressor of claim 1 record, it is characterized in that after described the 2nd operation, having and stop the operation that flip-flop flows through.
3. as the drive controlling method of the Linearkompressor of claim 1 record, it is characterized in that, comprise following operation: constitute refrigeration cycle after described Linearkompressor, condenser, puffing device and vaporizer are connected into ring-type, and the pressure checking device of the pressure of the high pressure one side refrigeration agent that detects described refrigeration cycle is set, when the refrigerant pressure that detects with described pressure checking device surpasses authorized pressure, successively electric current is increased to setting value.
4. as the drive controlling method of the Linearkompressor of claim 1 record, it is characterized in that, comprise following operation: calculate electric power after detecting the electric current of described linear motor and voltage, when the described electric power of calculating surpasses specified value, successively electric current is increased to setting value.
5. the drive controlling method of a Linearkompressor, this Linearkompressor possesses: the compressing mechanism with cylinder and piston, and the linear motor that makes this compressing mechanism work, described linear motor has the standing part that is connected with described cylinder, and the moving element that is connected with described piston, and described piston is produced thrust by described linear motor, it is characterized in that, at prestart, the electric current of flip-flop is passed through and mobile described piston, detect the amount of movement of described piston with the piston position detection facility, detect resonant frequency from the amount of movement that detects with described piston position detection facility, and determine the frequency of alternating current (a.c.) from described resonant frequency.
6. as the drive controlling method of the Linearkompressor of claim 5 record, it is characterized in that, when the stroke amount of the described piston of calculating from fixed described resonant frequency than with the stroke amount of the described piston of described piston position detection facility detection hour, gathering way of the alternating current (a.c.) that flows through in described linear motor is slack-off with making.
7. the drive controlling method of a Linearkompressor, pass through Linearkompressor, condenser, the puffing device, and vaporizer constitutes aircondition, described Linearkompressor possesses the compressing mechanism of compressed refrigerant in seal container, and the linear motor that makes this compressing mechanism work, described linear motor has the standing part that is connected with described cylinder, and the moving element that is connected with described piston, and described piston is produced thrust by described linear motor, it is characterized in that, detect the temperature of described condenser by temperature testing equipment, the temperature of described vaporizer, room temperature, and at least a temperature in the outdoor temperature, determine the current value of flip-flop required when starting according to the temperature of described temperature testing equipment detection, and when starting, fixed described current value is flow through.
8. the drive controlling method of a for motor vehicle Linearkompressor, the linear motor that in seal container, possesses the compressing mechanism of compressed refrigerant and make this compressing mechanism work, described compressing mechanism has cylinder and piston, described linear motor has standing part that is connected with described cylinder and the moving element that is connected with described piston, and described piston is produced thrust by described linear motor, it is characterized in that, when the amount of movement of described piston during, will in described linear motor, add direct current (d.c.) greater than specified value.
9. as the drive controlling method of for motor vehicle Linearkompressor of claim 8 record, it is characterized in that, be provided with the forced vibration amount detection facility that detects vibration acceleration, and in the 1st operation, make corresponding to the amplitude direction of the described piston of following the forced vibration that detects with described forced vibration amount detection facility and the electric current of amplitude amount and pass through.
10. as the drive controlling method of for motor vehicle Linearkompressor of claim 8 record, it is characterized in that, detect the forced vibration amount according to the induced voltage that produces at described linear motor, and in described the 1st operation, the electric current corresponding to the amplitude amount of the described piston of following the described forced vibration amount that has detected is passed through.
11. drive controlling method as for motor vehicle Linearkompressor of claim 8 record, it is characterized in that, be provided with by from the vibration detection of outside regenerative current detection facility at the electric current of described linear motor regeneration, and in described the 1st operation, the electric current corresponding to the amplitude amount of the described piston of following the described electric current that has detected is passed through.
CNB021247900A 2001-06-26 2002-06-25 Linear compressor driving controlling method and linear compressor driving controlling method for vehicle Expired - Fee Related CN1276176C (en)

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CN108603701B (en) * 2016-02-08 2020-11-27 乔治洛德方法研究和开发液化空气有限公司 Low-temperature refrigerating device
CN106042831A (en) * 2016-06-16 2016-10-26 美的集团武汉制冷设备有限公司 Control method for vehicle-mounted air conditioner system and vehicle-mounted air conditioner system
CN106080096A (en) * 2016-06-16 2016-11-09 美的集团武汉制冷设备有限公司 The control method of mounted air conditioner system and mounted air conditioner system
CN106080097A (en) * 2016-06-16 2016-11-09 美的集团武汉制冷设备有限公司 The control method of mounted air conditioner system and mounted air conditioner system
CN106042832A (en) * 2016-06-16 2016-10-26 美的集团武汉制冷设备有限公司 Control method for vehicle-mounted air conditioner system and vehicle-mounted air conditioner system
CN106042831B (en) * 2016-06-16 2019-03-12 美的集团武汉制冷设备有限公司 The control method and mounted air conditioner system of mounted air conditioner system
CN108397369A (en) * 2016-07-21 2018-08-14 陕西仙童科技有限公司 A kind of method of oil-free lubrication Linearkompressor and gas compression
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