阅读说明：本技术 一种压缩机及其控制方法 (A kind of compressor and its control method ) 是由 宋斌 许升 李衡国 吴远刚 高山 于 2018-05-25 设计创作，主要内容包括：本发明公开了一种压缩机及其控制方法,属于压缩机技术领域。压缩机包括：止挡机构,设于气缸端盖,且具有能够相对于排气阀片伸缩移动的止挡件,止挡件用以限定压缩机排气时排气阀片进行后退运动的止挡位置；控制器用于获取压缩机运行时的负载参数,并根据负载参数调整止挡机构的止挡件的止挡位置。本发明提供的压缩机在现在压缩机中增设了止挡机构和控制器,利用控制器可以调整止挡机构的止挡件对于排气阀片的止挡位置,这样,可以重新对排气阀片的最大后退距离进行限定；可以缩短排气阀片重新回调至闭合排气阀口的位置所用的时间,从而使排气阀片在完成排气之后可以快速的重新闭合排气阀口。(The invention discloses a kind of compressor and its control methods, belong to Compressor Technology field.Compressor includes: stop mechanism, is set to cylinder end piece, and with respect to the stop part of exhaust valve plate telescopic moving, exhaust valve plate carries out the stop dog position of setback when stop part is to limit compressor air-discharging；Controller is used to obtain load parameter when compressor operation, and the stop dog position of the stop part according to load parameter adjustment stop mechanism.Compressor provided by the invention is additionally arranged stop mechanism and controller existing within the compressor, using the adjustable stop mechanism of controller stop part for exhaust valve plate stop dog position, in this way, can be defined again to the maximum backway of exhaust valve plate；Exhaust valve plate can be shortened and pull back to the time used in the position of closure exhaust valve port again, to make exhaust valve plate that can quickly re-close exhaust valve port after completing exhaust.)

1. a kind of compressor, the compressor includes body, is formed in the intracorporal cylinder of the machine and is set to the cylinder Exhaust end exhaust valve plate and cylinder end piece, which is characterized in that the compressor further include:

Stop mechanism is set to the cylinder end piece, and with respect to the stop part of the exhaust valve plate telescopic moving, institute The exhaust valve plate carries out the stop dog position of setback when stating stop part to limit the compressor air-discharging；

Controller adjusts the backstop for obtaining load parameter when compressor operation, and according to the load parameter The stop dog position of the stop part of mechanism.

2. compressor according to claim 1, which is characterized in that the stop configurations further include:

Driving device, the driving device are set to the outer end face of the cylinder end piece；

Drive shaft, first end and the driving device are drivingly connected, and second end is through the cylinder end piece and stretches to the exhaust Valve block；

The stop part is set to the second end of the drive shaft；

The controller is used to control the operation of the driving device, drives the stop part relative to institute by the drive shaft State exhaust valve plate telescopic moving.

3. compressor according to claim 2, which is characterized in that the cylinder, the exhaust valve plate, the drive shaft with And the cylinder end piece coaxial arrangement.

4. compressor according to claim 1, which is characterized in that the compressor further includes exhaust spring, the exhaust Valve block is abutted by the exhaust spring with the stop part elasticity.

5. compressor according to claim 1, which is characterized in that the stop part is in contact with the exhaust valve plate Stop surface is equipped with elastomeric pad.

6. compressor according to claim 1 or 5, which is characterized in that the stop part connects with the exhaust valve plate The stop surface of touching is equipped with noise reduction gasket.

7. compressor according to claim 1, which is characterized in that the load parameter includes pressure at expulsion；

The compressor further includes pressure sensor, and the pressure sensor is used to detect exhaust pressure when compressor operation Power；

The controller is specifically used for obtaining the pressure at expulsion that the pressure sensor detects, and according to the pressure at expulsion Adjust the stop dog position of the stop part of the stop mechanism.

8. compressor according to claim 1, which is characterized in that the controller is specifically used for:

When the load parameter is greater than the load threshold of setting, the stop part is moved to separate exhaust valve plate first is controlled Set stop dog position；

When the load parameter is less than or equal to the load threshold of the setting, controls the stop part and be moved to close to described Second setting stop dog position of exhaust valve plate.

9. compressor according to claim 4, which is characterized in that the controller is specifically used for:

When the load parameter is greater than the load threshold of setting, the third that the stop part is moved to close exhaust valve plate is controlled Set stop dog position；

When the load parameter is less than or equal to the load threshold of the setting, controls the stop part and be moved to far from described 4th setting stop dog position of exhaust valve plate.

10. a kind of control method of compressor, which is characterized in that the compressor includes body, to be formed in the machine intracorporal Cylinder and the exhaust valve plate and cylinder end piece for being vented end for being set to the cylinder；The compressor further includes controllable stops Retaining device is set to the cylinder end piece, and with respect to the stop part of the exhaust valve plate telescopic moving, the backstop The exhaust valve plate carries out the stop dog position of setback when part is to limit the compressor air-discharging；The control method packet It includes:

Obtain load parameter when compressor operation；

The stop dog position of the stop part of the stop mechanism is adjusted according to the load parameter.

Technical field

The present invention relates to Compressor Technology fields, more particularly to a kind of compressor and its control method.

Background technique

Linearkompressor is a kind of more commonly used compressor type of current machinery field, and the component part of body is general Including shell, fueller and electromagnet assembly etc., it is specific include again electric machine assembly, cylinder, piston, exhaust valve plate, mover, Spring supporting component and motor etc.；Linearkompressor has many advantages, such as that compression efficiency is high, overall volume is small.

Exhaust valve plate in existing Linearkompressor type, with the difference of compressor load, after opening when being vented The position moved back also is different, and in the case that load is big, the distance that exhaust valve plate retreats farther out, can form larger caliber in this way Exhaust passage, and load it is small in the case where, exhaust valve plate retreat is closer, more small-bore exhaust can be formed in this way Channel；In general, the farthest going-back position of exhaust valve plate is exactly cylinder end piece position, existing a kind of line as shown in Figure 1 The structure of property compressor comprising shell 1, mover 2, stator 3, cylinder 4, exhaust valve plate 5, exhaust spring 6 and cylinder end piece 7； The setback of exhaust valve plate is limited within the scope of a, i.e. fixed space model between the exhaust valve port and cylinder end piece of cylinder In enclosing.After completing bleeding, exhaust valve plate is to carry out position go back to by the way that its spring between cylinder end piece is arranged in It adjusts, therefore, exhaust valve plate pulls back to the speed for being closed exhaust valve port and Time Dependent again is influenced institute by pressure at expulsion in spring The elastic acting force of the distance and spring of retrogressing itself；And in practical application, being easy for different pressure at expulsion situations Occur due to exhaust valve plate closing time it is too long caused by the gas backstreaming compressed the problem of, as pressure at expulsion greatly and spring In the case that pretightning force is too small, exhaust valve plate can retreat biggish a distance, and exhaust valve plate pulls back to closure exhaust again The position of valve port then generally requires longer time, and the gas compressed may during this period of time return again from exhaust port It flow in cylinder, this just affects the compression efficiency of compressor, limits the compression performance of compressor.

Summary of the invention

The present invention provides a kind of compressor and its control methods, it is intended to solve existing compressor and exist because exhaust valve plate is arranged The problem of gas backstreaming caused by air valve plate closure is slow.In order to which some aspects of the embodiment to disclosure have a basic reason Solution, is shown below simple summary.The summarized section is not extensive overview, nor to determine key/critical component Or describe the protection scope of these embodiments.Its sole purpose is that some concepts are presented with simple form, in this, as below Detailed description preamble.

According to an aspect of the invention, there is provided a kind of compressor, compressor includes body, is formed in the intracorporal gas of machine Cylinder and the exhaust valve plate and cylinder end piece for being vented end for being set to cylinder, compressor further include:

Stop mechanism is set to cylinder end piece, and with respect to the stop part of exhaust valve plate telescopic moving, stop part Exhaust valve plate carries out the stop dog position of setback when limiting compressor air-discharging；

Controller adjusts stopping for stop mechanism for obtaining load parameter when compressor operation, and according to load parameter The stop dog position of block piece.

In a kind of optional embodiment, stop configurations further include:

Driving device, driving device are set to the outer end face of cylinder end piece；

Drive shaft, first end and driving device are drivingly connected, and second end is through cylinder end piece and stretches to exhaust valve plate；

Stop part is set to the second end of drive shaft；

Controller is used to control the operation of driving device, drives stop part relative to the flexible shifting of exhaust valve plate by drive shaft It is dynamic.

In a kind of optional embodiment, cylinder, exhaust valve plate, drive shaft and cylinder end piece coaxial arrangement.

In a kind of optional embodiment, compressor further includes exhaust spring, and exhaust valve plate is by exhaust spring and only Block piece elasticity abuts.

In a kind of optional embodiment, the stop surface of stop part being in contact with exhaust valve plate is equipped with elastomeric pad.

In a kind of optional embodiment, the stop surface of stop part being in contact with exhaust valve plate is equipped with noise reduction gasket.

In a kind of optional embodiment, load parameter includes pressure at expulsion；

Compressor further includes pressure sensor, and pressure sensor is used to detect pressure at expulsion when compressor operation；

Controller is specifically used for obtaining the pressure at expulsion that pressure sensor detects, and adjusts backstop according to pressure at expulsion The stop dog position of the stop part of mechanism.

In a kind of optional embodiment, controller is specifically used for:

When load parameter is greater than the load threshold of setting, control stop part is moved to the first setting far from exhaust valve plate Stop dog position；

When load parameter is less than or equal to the load threshold of setting, control stop part is moved to the close to exhaust valve plate Two setting stop dog positions.

In a kind of optional embodiment, controller is specifically used for:

When load parameter is greater than the load threshold of setting, control stop part is moved to the third setting close to exhaust valve plate Stop dog position；

When load parameter is less than or equal to the load threshold of setting, control stop part is moved to the far from exhaust valve plate Four setting stop dog positions.

According to the second aspect of the invention, a kind of control method of compressor is additionally provided, compressor includes body, shape The intracorporal cylinder of Cheng Yuji and the exhaust valve plate and cylinder end piece for being vented end for being set to cylinder；Compressor further includes controllable Stop mechanism, be set to cylinder end piece, and with respect to the stop part of exhaust valve plate telescopic moving, stop part is to limit Determine the stop dog position that exhaust valve plate when compressor air-discharging carries out setback；Control method includes:

Obtain load parameter when compressor operation；

The stop dog position of the stop part of stop mechanism is adjusted according to load parameter.

Possessed beneficial effect is the present invention by adopting the above technical scheme:

Compressor provided by the invention is additionally arranged stop mechanism and controller existing within the compressor, can be with using controller Stop dog position of the stop part for exhaust valve plate of stop mechanism is adjusted, in this way, by changing between stop part and exhaust valve plate Distance, the maximum backway of exhaust valve plate can be defined again；Compared to existing exhausted range in cylinder The restriction of setback within the scope of fixed space between exhaust valve port and cylinder end piece, stop part can be according to actual exhaust air works The range of the setback for needing to reduce exhaust valve plate of condition, and then exhaust valve plate can be shortened and pull back to closure exhaust valve again Time used in the position of mouth drops to make exhaust valve plate that can quickly re-close exhaust valve port after completing exhaust The problem of low gas compressed is back to cylinder again occurrence probability, ensure that the compression performance and compression efficiency of compressor.

It should be understood that above general description and following detailed description be only it is exemplary and explanatory, not It can the limitation present invention.

Detailed description of the invention

Fig. 1 is a kind of schematic diagram of internal structure of existing Linearkompressor；

Fig. 2 is the schematic diagram of internal structure one of the compressor of the present invention according to shown by an exemplary embodiment；

Fig. 3 is the portion the A partial enlargement diagram of Fig. 2；

Fig. 4 is the schematic diagram of internal structure two of the compressor of the present invention according to shown by an exemplary embodiment；

Fig. 5 is the portion the B partial enlargement diagram of Fig. 4；

Fig. 6 is the flow diagram of the control method of the compressor of the present invention according to shown by an exemplary embodiment.

Wherein, 1, shell；2, mover；3, stator；4, cylinder；5, exhaust valve plate；6, exhaust spring；7, cylinder end piece；81, Stop part；82, driving device；83, drive shaft.

Specific embodiment

The following description and drawings fully show specific embodiments of the present invention, to enable those skilled in the art to Practice them.Other embodiments may include structure, logic, it is electrical, process and other change.Embodiment Only represent possible variation.Unless explicitly requested, otherwise individual components and functionality is optional, and the sequence operated can be with Variation.The part of some embodiments and feature can be included in or replace part and the feature of other embodiments.This hair The range of bright embodiment includes equivalent obtained by the entire scope of claims and all of claims Object.Herein, each embodiment individually or can be indicated generally with term " invention ", and it is convenient that this is used for the purpose of, And if in fact disclosing the invention more than one, the range for being not meant to automatically limit the application is any single invention Or inventive concept.Herein, relational terms such as first and second and the like be used only for by an entity or operation with Another entity or operation distinguish, and without requiring or implying, there are any actual relationships between these entities or operation Or sequence.Moreover, the terms "include", "comprise" or any other variant thereof is intended to cover non-exclusive inclusion, thus So that process, method or equipment including a series of elements not only include those elements, but also including being not explicitly listed Other element, or further include for this process, method or the intrinsic element of equipment.In the feelings not limited more Under condition, the element that is limited by sentence "including a ...", it is not excluded that in process, method or equipment including the element In there is also other identical elements.Each embodiment herein is described in a progressive manner, and each embodiment stresses Be the difference from other embodiments, the same or similar parts in each embodiment may refer to each other.For implementing For method, product etc. disclosed in example, since it is corresponding with method part disclosed in embodiment, so the comparison of description is simple Single, reference may be made to the description of the method.

Fig. 2 is the schematic diagram of internal structure one of the compressor of the present invention according to shown by an exemplary embodiment；Fig. 3 is figure 2 portion A partial enlargement diagram.In Fig. 2 and structure illustrated in fig. 3, the stop part of stop mechanism is not supported with exhaust spring It connects, stop part can directly lean with stop part when drain tap carries out setback.

As shown in Figures 2 and 3, the present invention provides a kind of compressor, compressor includes body, wherein body includes outer Cylinder 4, setting in cylinder 4 are formed on the central axes of shell 1, stator 3 and mover 2 inside shell 1, stator 3 and mover 2 There is the piston rod that gas compression is realized by flexible fortune movement, the one end of cylinder 4 is exhaust end, and exhaust end is provided with can The exhaust valve plate 5 of opening and closing is vented the outside mask of end equipped with the cylinder end piece 7 for closing the end.

Compressor further includes stop mechanism and controller, wherein stop mechanism is set to cylinder end piece 7, and having being capable of phase For the stop part 81 of 5 telescopic moving of exhaust valve plate, exhaust valve plate 5 is retreated when stop part 81 is to limit compressor air-discharging The stop dog position of movement；And controller, stop for obtaining load parameter when compressor operation, and according to load parameter adjustment The stop dog position of the stop part 81 of retaining device.

Compressor provided by the invention is additionally arranged stop mechanism and controller existing within the compressor, can be with using controller Stop dog position of the stop part 81 for exhaust valve plate 5 of stop mechanism is adjusted, in this way, by changing stop part 81 and exhaust valve plate The distance between 5, the maximum backway of exhaust valve plate 5 can be defined again；Exist compared to existing exhausted range The restriction of setback within the scope of fixed space between the exhaust valve port and cylinder end piece 7 of cylinder 4, stop part 81 can basis The range of the setback for needing to reduce exhaust valve plate 5 of actual exhaust air operating condition, and then exhaust valve plate 5 can be shortened and adjusted back again To the time used in the position of closure exhaust valve port, to make exhaust valve plate 5 that can quickly close again after completing exhaust Exhaust valve port is closed, the problem of gas compressed is back to cylinder 4 again occurrence probability is reduced, ensure that the compressibility of compressor Energy and compression efficiency.

Specifically, stop configurations further include driving device 82 and drive shaft 83, wherein driving device 82 is set to cylinder end The outer end face of lid 7；The first end and driving device 82 of drive shaft 83 are drivingly connected, and second end is through cylinder end piece 7 and stretches to row Air valve plate 5；Stop part 81 is set to the second end of drive shaft 83.In this way, controller is used to control the operation of driving device 82, pass through Drive shaft 83 drives stop part 81 relative to 5 telescopic moving of exhaust valve plate, in this way, stop part 81 can be made to close to exhaust valve plate 5 direction is mobile, alternatively, mobile to the direction far from exhaust valve plate 5.

Spacing contracting when stop part 81 is to close to the movement of the direction of exhaust valve plate 5, between stop part 81 and exhaust valve plate 5 Small, the space that exhaust valve plate 5 carries out setback also reduces therewith, this way it is possible to avoid because 5 backway of exhaust valve plate is excessive The too long problem of caused closing time, to accelerate the closure of 5 pairs of exhaust valve plate exhaust ends；And in stop part 81 to remote When direction from exhaust valve plate 5 is mobile, the spacing between stop part 81 and exhaust valve plate 5 increases, and exhaust valve plate 5 carries out retrogressing fortune Dynamic space also increases with it, and the open path area for compressed gas discharge of exhaust valve plate 5 also becomes larger, and can satisfy and is arranging Exhaust requirements in the case that atmospheric pressure is larger, capacity is more, so that compressed gas can be discharged from cylinder 4 as soon as possible.

Specifically, driving device 82 is a micromotor being driven by electricity, the motor include set on private side rotor and It is arranged the stator 3 with rotor outer periphery；The middle part of rotor is hollow structure, and inner wall is equipped with screw thread；Drive shaft 83 is a straight-bar The shaft of shape, shaft are arranged in the hollow structure of rotor；The outer wall of shaft is also formed with screw thread, in this way, shaft and rotor are logical It crosses and is threadedly engaged real drive connection.

In the present embodiment, micromotor is the motor type that controllable rotor carries out Double-directional rotary, different by applying Voltage, rotor can be made to rotate forward or rotate backward；Rotor is when with different steering rotations, due to itself and shaft Between screw thread restriction cooperation, shaft can be made along itself axial moving to different directions；Illustratively, micro- when being applied to When type motor forward voltage, rotor is to rotate forward, at this point, rotor pushes shaft along its axial direction to leaning on by the extruding force of screw thread The side of nearly exhaust valve plate 5 is mobile, and shaft is made to show the movement displaying of " overhanging ", so as to be located at stopping for the second end of the shaft Block piece 81 is close to exhaust valve plate 5；When being applied to micromotor backward voltage, rotor is to rotate backward, at this point, rotor passes through spiral shell The extruding force of line pushes shaft to move along its axial direction to the side far from exhaust valve plate 5, and shaft is made to show the movement of " inside contracting " Performance, so as to be located at the stop part 81 of the second end of the shaft far from exhaust valve plate 5.

In the present embodiment, cylinder 4 is 4 type of tubular cylinder, and exhaust end is circular opening；Exhaust valve plate 5 is The slightly larger circular sheet-like structures with the opening of exhaust end of one outer profile area, the center of circle of exhaust valve plate 5 is located at the tubular gas On the axis of cylinder 4, thus the problems such as guaranteeing that exhaust valve plate 5 can be bonded tightly when closure is vented end, avoiding the occurrence of gas leakage. Correspondingly, cylinder end piece 7 is the dome body of a unilateral indent, indent side covers at exhaust end, and the part of indent can be made The space of setback is carried out for exhaust valve plate 5, the center of circle of cylinder end piece 7 also is located on the axis of tubular cylinder 4.

Stop part 81 is a flake structure, and flake structure is arranged in a manner of perpendicular to the axial direction of drive shaft 83 and drives The second end of axis 83, the two " T " shape fit system in Fig. 3.Optionally, the shape of the flake structure can for triangle, The various structures such as round, rectangular are circular flake structures shown in Fig. 3.Flake structure form can reduce stop mechanism Overall weight, meanwhile, the side relative to exhaust valve plate 5 of flake structure is the stop surface of sheet, enables to stop part 81 can be by biggish contact area with exhaust valve plate 5, stop part 81 when dispersing 5 setback of exhaust valve plate to stop dog position With the squeezing action power of exhaust valve plate 5 from each other, avoids the occurrence of and made because contact area is too small, local squeezing action power is excessive At problem on deformation, to guarantee the service life of stop part 81 Yu exhaust valve plate 5.

Here, cylinder 4, exhaust valve plate 5, drive shaft 83 and cylinder end piece 7 are coaxially disposed, in this way, the circle of exhaust valve plate 5 It is parallel to each other when shape laminated structure and the flake structure of the stop part 81 for the second end for being vertical at drive shaft 83, in exhaust valve When the retrogressing of piece 5 is moved to stop dog position, exhaust valve plate 5 and stop part 81 can contact in such a way that face fits with face, into one Step ensure that the appearance for the problem of the two has enough contacts area, prevents local deformation.

In Fig. 2 and compressor arrangement illustrated in fig. 3, compressor further includes the exhaust spring 6 of approximately conical shape；Cylinder end The internal perisporium of the recess of lid 7 is formed with an annular securing groove, the back side of exhaust valve plate 5 and tip one end of exhaust spring 6 It abuts against, the other end of exhaust spring 6 is then connected in the annular securing groove.5 compressed gas of exhaust valve plate pressure into When row setback, exhaust spring 6 is in compressive state；In compressed gas after the discharge of cylinder 4, exhaust spring 6 be can use Exhaust valve plate 5 is reset to by the compression elasticity of itself re-closes exhaust end；Therefore, exhaust event is executed in exhaust valve plate 5 When, the distance of setback is determined by the size of the active force between pressure at expulsion and exhaust spring 6, in exhaust pressure When power is greater than the compression elasticity of spring, 5 setback of exhaust valve plate, until the two active force is equal, if the two difference is larger, Then the distance of 5 setback of exhaust valve plate is farther out；And when pressure at expulsion is less than the compression elasticity of spring, exhaust valve plate 5 carries out Forward resetting movement.

In this way, existing compressor is in the biggish situation of single pressure at expulsion, due to the distance of 5 setback of exhaust valve plate Farther out, so its spring needs to consume the long period and could reset again exhaust valve plate 5；But in compressor of the invention In, it is additionally arranged stop part 81 in the setback space of exhaust valve plate 5, in this way, when single pressure at expulsion is larger, although row Air valve plate 5 still has the tendency that setback, but in addition to the elastic acting force by exhaust spring 6, exhaust valve plate 5 also be will receive The reaction force of stop part 81 makes to arrange in this way, exhaust valve plate 5 can be made to rest on current stop dog position using stop part 81 Air valve plate 5 can not be further continued for retreating, so as to avoid because the resetting time caused by 5 backway of exhaust valve plate is excessive is long Problem, to play the purpose for accelerating the closure exhaust of exhaust valve plate 5 end.

In the present embodiment, the outer profile area of stop part 81 is slightly less than the area of section of tip one end of exhaust spring 6, In this way, stop part 81 always in exhaust spring 6 hollow space in, without exhaust valve plate 5 carry out setback and When stop part 81 itself carries out telescopic moving, it is in contact with exhaust spring 6, the elastic deformation to avoid stop part 81 to spring Constitute interference effect.

Fig. 4 is the schematic diagram of internal structure two of the compressor of the present invention according to shown by an exemplary embodiment；Fig. 5 is figure 4 portion B partial enlargement diagram.

As shown in Figure 4 and Figure 5, the present invention provides the structure type of another new compressor, compressor includes exhaust Spring 6, exhaust valve plate 5 are abutted by exhaust spring 6 with 81 elasticity of stop part.

Compared to the structure of compressor shown in embodiment above, cylinder end piece 7 is not provided with clamping exhaust spring 6 Annular securing groove, the internal perisporium of cylinder end piece 7 are only used for limiting the circumferential direction of exhaust spring 6；Meanwhile stop part 81 only The outer profile area of block face is slightly larger than the area of section of one end of the non-tip of exhaust spring 6, so that the end of exhaust spring 6 It can be in contact completely with the stop surface of stop part 81, make the two that can stablize counter stopper.

In the present embodiment example, in 5 setback of exhaust valve plate, exhaust valve plate 5 does not contact directly with stop part 81, The telescopic moving that stop part 81 passes through its own, thus it is possible to vary the spacing between stop part 81 and exhaust valve plate 5, due to being vented bullet Spring 6 is between stop part 81 and exhaust valve plate 5, when the spacing variation between stop part 81 and exhaust valve plate 5, exhaust spring 6 itself occur elastic deformation, so as to change the pre- of exhaust spring 6 itself when exhaust valve plate 5 not yet carries out backward movement Clamp force, so that the mode of the pretightning force by adjusting exhaust spring 6, changes practical retrogressing of the exhaust valve plate 5 when being exhausted The distance of movement.

For example, it is assumed that being vented bullet in the case where the position of the annular securing groove of the original that stop part 81 is contracted to cylinder end piece 7 The deformation degree and pretightning force for the exhaust spring 6 that the implementation that the deformation degree and pretightning force of spring 6 are equal to Fig. 2 above exemplifies, At this point, the spacing between stop part 81 and exhaust valve plate 5 is b, the length of exhaust spring 6 is also considered as b (stop part 81 and row The thickness of air valve plate 5 is temporarily ignored), initial pretightening force is considered as 0；The pressure at expulsion of certain cylinder 4 is AKPa, in stop part In the case that 81 is motionless, when the deformation degree of exhaust spring 6 is 3b/4, the elastic force generated can be with current exhaust pressure Power is equal, and the physical length of exhaust spring 6 becomes the 3/4 of initial length at this time, and the actual range of 5 setback of exhaust valve plate is b/4；And when the position of the annular securing groove of the original of stop tab from cylinder end piece 7 is moved to b/2, the length of spring becomes b/ 2, pretightning force is greater than zero, then is similarly under conditions of the pressure at expulsion of AKPa, since initial pretightning force is not zero, is vented bullet The own resilient of spring 6, which reaches, is obviously less than b/4 with the elastically-deformable distance simultaneously such as pressure at expulsion, therefore, exhaust valve plate 5 Actual range precious jade precious jade when carrying out setback is wanted and b/4, in this manner it is possible to the side of the pretightning force by adjusting exhaust spring 6 Formula achievees the purpose that the distance of the practical setback of adjustment under different exhaust working conditions of exhaust valve plate 5.

In an alternative embodiment, the stop surface of stop part 81 being in contact with exhaust valve plate 5 is equipped with elastomeric pad, Elastomeric pad is thin slice pattern, and certain buffering can be provided when stop part 81 and exhaust valve plate 5 contact, reduces and is squeezed and deformed And the appearance of the problem of friction damage.Optionally, elastomeric pad can be rubber pad, foam-rubber cushion etc., it is contemplated that compressor The generally high-temperature gas of discharge, so material selected by the elastomeric pad should also have characteristic resistant to high temperature, to meet It is needed in intracorporal use of high temperature machine of compressor.

Preferably, the shape of elastomeric pad is adapted with the shape of stop part 81, such as the circle referred in previous embodiment The stop part 81 of flake structure, elastomeric pad can also be designed to circular chip shape, contour area and stop part 81 Stop surface is adapted.

In an alternative embodiment, the stop surface of stop part 81 being in contact with exhaust valve plate 5 is equipped with noise reduction gasket. Similar, noise reduction gasket is also thin slice pattern, can reduce the collision generated when stop part 81 is contacted with exhaust valve plate 5 and makes an uproar Sound, to reduce noise content when compressor is exhausted.Optionally, noise reduction gasket can be using materials such as plasterboard, fiberboards Material is made, meanwhile, material selected by noise reduction gasket should also be as having characteristic resistant to high temperature.

In another optional embodiment, the stop surface of stop part 81 is provided with shown in both of the aforesaid embodiment simultaneously Noise reduction gasket and elastomeric pad, noise reduction gasket and elastomeric pad are sampled identical shape design, are arranged in a manner of stacking On stop surface；Here, noise reduction gasket can be set to outside, and elastomeric pad is folded between noise reduction gasket and stop surface, therefore, only When block piece 81 contacts exhaust valve plate 5 above-mentioned or exhaust spring 6, noise reduction gasket is the practical component contacted with the two；Or Elastomeric pad can also be set to outside, noise reduction gasket is folded between elastomeric pad and stop surface by person.

In an alternative embodiment, controller carry out control adjustment based on load parameter include pressure at expulsion.

Here, compressor further includes pressure sensor, and pressure sensor is used to detect pressure at expulsion when compressor operation； Controller is specifically used for obtaining the pressure at expulsion that pressure sensor detects, and adjusts stopping for stop mechanism according to pressure at expulsion The stop dog position of block piece 81.

In an alternative embodiment, for compressor type shown in Fig. 2 and Fig. 3, controller is according to exhaust Detailed process is as follows for the stop dog position of the stop part 81 of pressure adjustment stop mechanism:

When load parameter is greater than the load threshold of setting, control stop part 81 is moved to first far from exhaust valve plate 5 Set stop dog position；In the present embodiment, first stop dog position is set as a predeterminated position；Alternatively, the first setting stop position It sets including multiple along the axial predeterminated position successively far from exhaust valve plate 5 of cylinder 4, multiple and different predeterminated positions is respectively backstop The maximum going-back position of exhaust valve plate 5 defined by part 81, difference difference such as different from load threshold for load parameter Corresponding different predeterminated position, difference is bigger, and position of the predeterminated position apart from exhaust valve plate 5 is remoter；Conversely, then predeterminated position away from Position from exhaust valve plate 5 is closer.

When load parameter is less than or equal to the load threshold of setting, control stop part 81 is moved to close to exhaust valve plate 5 Second setting stop dog position.Similar, second sets stop dog position as a predeterminated position；Alternatively, the second setting stop position It sets including multiple along cylinder 4 axially successively close to the predeterminated position of exhaust valve plate 5, multiple and different predeterminated positions is respectively backstop The maximum going-back position of exhaust valve plate 5 defined by part 81, difference difference such as different from load threshold for load parameter Corresponding different predeterminated position, difference is bigger, and position of the predeterminated position apart from exhaust valve plate 5 is closer；Conversely, then predeterminated position away from Position from exhaust valve plate 5 is remoter.

In this way, the backstop for changing the backway of exhaust valve plate 5 can be played by the stop dog position for changing stop part 81 Effect reaches the efficiency optimization value of the exhaust valve plate 5 under different loads.

Specifically, the position switching of stop part 81 can drive the telescopic moving of its drive shaft 83 to change by driving device 82 The position for becoming stop part 81, by detecting load parameter, determines that present load is joined before compressor carries out each exhaust event The retrogressing stop dog position of the corresponding optimal exhaust valve plate 5 of number, control stop part 81 are moved to the stop dog position in advance, this The scope of activities of this setback of exhaust valve plate 5 can be limited to stop position when movement is exhausted in compressor by sample It sets in the spatial dimension between exhaust valve port, to not only be able to satisfy the requirement of the flow path area of the exhaust of compressor, but also can Guarantee that exhaust valve plate 5 can be reset to closure exhaust valve port as soon as possible, the compression performance of compressor has been effectively ensured.

In another optional embodiment, for compressor type shown in Fig. 4 and Fig. 5, controller is according to row Detailed process is as follows for the stop dog position of the stop part 81 of atmospheric pressure adjustment stop mechanism:

When load parameter is greater than the load threshold of setting, control stop part 81 is moved to the third close to exhaust valve plate 5 Set stop dog position；Similar, third sets stop dog position as a predeterminated position；Alternatively, third setting stop dog position includes Multiple axial successively close to the predeterminated position of exhaust valve plate 5 along cylinder 4, multiple and different predeterminated positions is respectively 81 institute of stop part The maximum going-back position of the exhaust valve plate 5 of restriction such as respectively corresponds not for the load parameter difference different from load threshold Same predeterminated position, difference is bigger, and position of the predeterminated position apart from exhaust valve plate 5 is closer；Conversely, then predeterminated position distance exhaust The position of valve block 5 is remoter.

Stop part 81 is adjusted to the third close to exhaust valve plate 5 and sets stop dog position, the compression of exhaust spring 6 can be made Pretightning force increases, so as to accelerate exhaust valve plate 5 to be closed after exhaust is completed.

When load parameter is less than or equal to the load threshold of setting, control stop part 81 is moved to far from exhaust valve plate 5 The 4th setting stop dog position include multiple along the axial predeterminated position successively far from exhaust valve plate 5 of cylinder 4, multiple and different is pre- If position is respectively the maximum going-back position of exhaust valve plate 5 defined by stop part 81, it is such as directed to load parameter and load threshold Different differences respectively correspond different predeterminated positions, difference is bigger, and position of the predeterminated position apart from exhaust valve plate 5 is remoter； Conversely, then position of the predeterminated position apart from exhaust valve plate 5 is closer.

In this way, adjusting stop part 81 to by the 4th setting stop dog position far from exhaust valve plate 5, exhaust spring can be made 6 compression pretightning force reduces, and prevents exhaust valve plate 5 to be not easy setback due to by biggish elastic force, avoids additional damage Consumption.

Fig. 6 is the flow diagram of the control method of the compressor of the present invention according to shown by an exemplary embodiment.

As shown in fig. 6, the control method can be applied to aforementioned reality the present invention also provides a kind of control method of compressor Apply the control operation of the compressor disclosed in example；Control method includes:

Load parameter when S601, acquisition compressor operation；

In the present embodiment, load parameter includes pressure at expulsion；

Compressor is provided with pressure sensor, and pressure sensor can be used for detecting the pressure at expulsion in cylinder；Here, this control Method processed is to reach optimal exhaust efficiency, and therefore, acquired pressure at expulsion is that movement is being exhausted in compressor Pressure at expulsion in preceding cylinder；

S602, according to load parameter adjust stop mechanism stop part stop dog position.

In one embodiment of the invention, for compressor type shown in Fig. 2 and Fig. 3, according to pressure at expulsion Detailed process is as follows for the stop dog position of the stop part of adjustment stop mechanism:

When load parameter is greater than the load threshold of setting, control stop part is moved to the first setting far from exhaust valve plate Stop dog position；In the present embodiment, first stop dog position is set as a predeterminated position；Alternatively, the first setting stop dog position packet Include multiple axial successively far from the predeterminated position of exhaust valve plate along cylinder, multiple and different predeterminated positions is respectively that stop part is limited The maximum going-back position of fixed exhaust valve plate is such as respectively corresponded for the load parameter difference different from load threshold different Predeterminated position, difference is bigger, and position of the predeterminated position apart from exhaust valve plate is remoter；Conversely, then predeterminated position is apart from exhaust valve plate Position it is closer.

When load parameter is less than or equal to the load threshold of setting, control stop part is moved to the close to exhaust valve plate Two setting stop dog positions.Similar, second sets stop dog position as a predeterminated position；Alternatively, the second setting stop dog position packet Include multiple axial successively close to the predeterminated position of exhaust valve plate along cylinder, multiple and different predeterminated positions is respectively that stop part is limited The maximum going-back position of fixed exhaust valve plate is such as respectively corresponded for the load parameter difference different from load threshold different Predeterminated position, difference is bigger, and position of the predeterminated position apart from exhaust valve plate is closer；Conversely, then predeterminated position is apart from exhaust valve plate Position it is remoter.

In this way, the backstop effect for the backway for changing exhaust valve plate can be played by the stop dog position for changing stop part Fruit reaches the efficiency optimization value of the exhaust valve plate under different loads.

Specifically, the position switching of stop part can drive the telescopic moving of its drive shaft to change backstop by driving device The position of part, by detecting load parameter, determines corresponding to present load parameter before compressor carries out each exhaust event Optimal exhaust valve plate retrogressing stop dog position, control stop part be moved to the stop dog position in advance, in this way, compressor into When row exhaust event, the scope of activities of this setback of exhaust valve plate can be limited to stop dog position and exhaust valve port it Between spatial dimension in, to not only be able to satisfy the requirement of the flow path area of the exhaust of compressor, but also can guarantee exhaust valve plate energy It is enough to be reset to closure exhaust valve port as soon as possible, the compression performance of compressor has been effectively ensured.

In another embodiment of the present invention, for compressor type shown in Fig. 4 and Fig. 5, controller is according to row Detailed process is as follows for the stop dog position of the stop part of atmospheric pressure adjustment stop mechanism:

When load parameter is greater than the load threshold of setting, control stop part is moved to the third setting close to exhaust valve plate Stop dog position；Similar, third sets stop dog position as a predeterminated position；Alternatively, third setting stop dog position includes multiple Axial successively close to the predeterminated position of exhaust valve plate along cylinder, multiple and different predeterminated positions is respectively row defined by stop part The maximum going-back position of air valve plate such as respectively corresponds different default positions for the load parameter difference different from load threshold It sets, difference is bigger, and position of the predeterminated position apart from exhaust valve plate is closer；Conversely, then position of the predeterminated position apart from exhaust valve plate It is remoter.

Stop part is adjusted to the third close to exhaust valve plate and sets stop dog position, the compression of exhaust spring can be made to pre-tighten Power increases, so as to accelerate exhaust valve plate closure after exhaust is completed.

When load parameter is less than or equal to the load threshold of setting, control stop part is moved to the far from exhaust valve plate Four setting stop dog positions include multiple axial successively far from the predeterminated position of exhaust valve plate, multiple and different predeterminated positions along cylinder The respectively maximum going-back position of exhaust valve plate defined by stop part, differences such as different from load threshold for load parameter Value respectively corresponds different predeterminated positions, and difference is bigger, and position of the predeterminated position apart from exhaust valve plate is remoter；Conversely, then presetting The position of positional distance exhaust valve plate is closer.

In this way, adjusting stop part to by the 4th setting stop dog position far from exhaust valve plate, exhaust spring can be made Compressing pretightning force reduces, and prevents exhaust valve plate to be not easy setback due to by biggish elastic force, avoids additional loss.

It should be understood that the invention is not limited to the process and structure that are described above and are shown in the accompanying drawings, And various modifications and changes may be made without departing from the scope thereof.The scope of the present invention is only limited by the attached claims System.