CN110234875A

CN110234875A - Linearkompressor

Info

Publication number: CN110234875A
Application number: CN201880008237.0A
Authority: CN
Inventors: 裴相贤; 吴元植
Original assignee: LG Electronics Inc
Current assignee: LG Electronics Inc
Priority date: 2017-02-02
Filing date: 2018-01-23
Publication date: 2019-09-13
Also published as: KR20180089984A; WO2018143592A1

Abstract

The Linearkompressor of the embodiment of the present invention is characterised by comprising: cylinder barrel, is formed with refrigerant compression space in the inside of the cylinder barrel；Piston is inserted in the inside of the cylinder barrel, moves back and forth along the axial direction of the cylinder barrel and the compression space is made to expand or compress, and be formed with multiple inlet holes in the front surface of the piston；Inlet valve is incorporated into the front surface of the piston and is selectively opened and closed multiple inlet holes；Guiding piece penetrates through the center of the inlet valve and is inserted in the piston；And fastening member, the main part of the fastening member is inserted in the inside of the guiding piece, the head of the fastening member is locked to the front end of the guiding piece, the guiding piece is prominent from the front surface of the piston, when the piston carries out linear reciprocating motion, the inlet valve because of inertia towards the direction opposite with the moving direction of the piston by making a relative move along the guiding piece.

Description

Linearkompressor

Technical field

The present invention relates to a kind of Linearkompressors.

Background technique

In general, compressor (Compressor) be from the power generating apparatus such as electric motor or turbine receive power, and To air or refrigerant or in addition to this variety of working gas compress, to improve the mechanical device of its pressure, just extensively It is general to be applied in above-mentioned household electrical appliance or entire industry.

This compressor can be roughly divided into: reciprocating compressor (Reciprocating compressor), in piston (Piston) it is formed with the compression space of sucking or discharge working gas between cylinder barrel (Cylinder), thus makes piston in cylinder The inside of cylinder compress while linear reciprocating motion to refrigerant；Rotary compressor (Rotary Compressor), sucking or discharge working gas are formed between the roller (Roller) being eccentrically rotated and cylinder barrel Compression space, and roller is eccentrically rotated along the inner wall of cylinder barrel while, compresses refrigerant；And it is vortexed Formula compressor (Scrollcompressor), in convolution scroll plate (Orbiting scroll) and fixed scroll (Fixed Scroll the compression space of sucking or discharge working gas is formed between), and the convolution scroll plate is along fixed scroll Refrigerant is compressed while disk is rotated.

Recently, in the reciprocating compressor, following Linearkompressor is especially more developed, that is, by that will live Plug is directly connected with the drive motor for carrying out linear reciprocating motion, the mechanical loss caused by not because of movement conversion In the case of the Linearkompressor that can be improved compression efficiency, and constitute in simple structure.

In general, Linearkompressor is constituted as follows: internal in closed shell (shell), piston passes through linear horse Refrigerant is sucked up to while the inside of cylinder barrel carries out linear reciprocating motion, and the refrigerant that spues upon compression.

For the linear motor, between inner stator (inner stator) and external stator (outer stator) It is provided with permanent magnet, and reciprocal straight to carry out by the mutual electromagnetic force between permanent magnet and interior (or outer) stator with permanent magnet The mode of line movement drives.Also, with being driven in the state that the permanent magnet is connected with piston, piston is in cylinder barrel Inside carry out sucking refrigerant while linear reciprocating motion, and the refrigerant that spues after being compressed.

In the Linearkompressor disclosed in KR published patent the 2006-0091645th (on 08 21st, 2006), inhale Entering valve is the structure that the front surface of piston is fixed on by fastening members such as bolts.It also, is the central part of the inlet valve The structure of piston is fixed on by the head of the bolt.

Linearkompressor disclosed in the above-mentioned prior art is that the central part of inlet valve is firmly fixed at by bolt The structure of the front surface of piston.Therefore, in order to flow into the refrigerant flow direction compression space of internal piston, it is drawn into piston Refrigerant needs to have the power for making inlet valve deform.

That is, the initial communication performance of inlet valve will reduce in the case where refrigerant can not make inlet valve deform, Accordingly, it may occur that refrigerant starts compressed ask in the state that the refrigerant of sufficient amount fails to be flowed into compression space Topic.

Summary of the invention

Problem to be solved by the invention

The present invention is to propose to solve the above-mentioned problems.

The technical solution solved the problems, such as

Linearkompressor for reaching the embodiment of the present invention of above-mentioned purpose is characterised by comprising: cylinder barrel, at it Inside is formed with refrigerant compression space；Piston is inserted in the inside of the cylinder barrel, carries out along the axial direction of the cylinder barrel past It moves again and the compression space is made to expand or compress, and be formed with multiple inlet holes in its front surface；Inlet valve, in conjunction with In the front surface of the piston, and selectively it is opened and closed multiple inlet holes；Guiding piece penetrates through the center of the inlet valve And it is inserted in the piston；And fastening member, main part are inserted in the inside of the guiding piece, head is locked to described The front end of guiding piece, the guiding piece is prominent from the front surface of the piston, when the piston carries out linear reciprocating motion, The inlet valve carries out opposite move towards the direction opposite with the moving direction of the piston along the guiding piece by inertia It is dynamic.

Also, when the piston is in order to make refrigerant be flowed into the refrigerant compression space and retreat, the sucking Valve separates from the front surface of the piston and opens multiple inlet holes, when the piston is flowed into the refrigeration to compress The refrigerant of agent compression space and when advancing, the inlet valve is tightly attached to the front surface of the piston and closes multiple suckings Hole.

Also, the protrusion length of the guiding piece is at least more than the thickness of the inlet valve.

Also, the guiding piece may include: guide main body, be formed in the interior thereof the master for making the fastening member The insertion hole of body portion insertion；One or more anti-rotational ribs, it is prominent from the outer peripheral surface of the guide main body, and prevent described Inlet valve is pivoted about with the guide main body.

Also, the inlet valve may include: valve body, is formed in its center for making passing through for the guide portion perforation Through-hole；Multiple fins (flap) from the edge of the valve body with radial extension, and are selectively opened and closed multiple suctions Enter hole.

Also, multiple fins respectively include: lateral area covers at least one in multiple inlet holes Point；And inside region, it is formed with opening portion, the opening portion is for becoming easy the bending of the fin.

Also, the through hole is formed as shape identical with the cross sectional shape of the guiding piece.

Invention effect

According to the Linearkompressor of the embodiment of the present invention with structure as described above, when piston retreats, sucking Valve opens inlet hole while movement because of inertia along the direction opposite with the moving direction of piston, therefore, has energy Enough improve the effect of the initial communication performance of valve.

In addition, inlet valve opens inlet hole because of inertia at the sucking initial stage of refrigerant, therefore has and can reduce refrigeration The flow losses of agent, later as prior art, inlet valve can substantially ensure the amount of opening of inlet hole while bending Advantage.

In addition, by the structure from the outer peripheral surface of guiding piece anti-rotational rib made of prominent, to make inlet valve along guidance Part may only make a relative move towards front-rear direction relative to piston, and have the circumferencial direction that can be prevented along piston The phenomenon that idle running.

Detailed description of the invention

Fig. 1 is the stereoscopic figure for showing the structure of Linearkompressor of the embodiment of the present invention.

Fig. 2 is the shell of the Linearkompressor of the embodiment of the present invention and the stereogram exploded view of casing cover.

Fig. 3 is the stereogram exploded view of the main body of the Linearkompressor of the embodiment of the present invention.

Fig. 4 is the longitudinal section view of the Linearkompressor of the embodiment of the present invention splitted along the I-I' line of Fig. 1.

Fig. 5 is the perspective view for constituting the guiding piece of Linearkompressor of the embodiment of the present invention.

Fig. 6 is the perspective view for constituting the inlet valve of Linearkompressor of the embodiment of the present invention.

Fig. 7 to Fig. 9 is the figure for showing the movement of the inlet valve when piston is to suck refrigerant and retreat.

Specific embodiment

Hereinafter, the Linearkompressor that embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Fig. 1 is the stereoscopic figure for showing the structure of Linearkompressor of the embodiment of the present invention, and Fig. 2 is reality of the invention Apply the shell of the Linearkompressor of example and the stereogram exploded view of casing cover.

Referring to Figures 1 and 2, the Linearkompressor 10 of the embodiment of the present invention may include: shell 101；Be incorporated into institute State the casing cover of shell 101.The casing cover may include the first casing cover 102 and second housing lid 103.

In detail, it may incorporate leg (leg) 50 in the downside of the shell 101.The leg 50 can be provided with The pedestal of the product of the Linearkompressor 10 combines.As an example, the product may include refrigerator, and the pedestal may include The pedestal of the Machine Room of the refrigerator.As another example, the product may include the outdoor unit of air regulator, and the pedestal can Pedestal including the outdoor unit.

The shell 101 has the cylindrical shape of accumbency, and the machinery of refrigerator is thus set in the Linearkompressor 10 When the pedestal of room, the height of the Machine Room can be reduced.

It may be provided with terminals sub-block 108 in the outer surface of the shell 101.The terminals sub-block 108 can be regarded as To the interconnecting piece of motor sub-assembly 140 (referring to Fig. 3) transmission external power supply of Linearkompressor.

The outside of the connecting terminal 108 is provided with bracket 109.The bracket 109 can be played from external impact etc. The function of the middle protection connecting terminal 108.

Opening is formed in the two sides of the shell 101.First casing cover 102 and second housing lid 103 are combinable In the both ends of the formation opening of the shell 101.It can be in the closed shell 101 by the casing cover 102,103 Portion space.

On the basis of Fig. 1, first casing cover 102 is located at the right side of the Linearkompressor 10, the second housing Lid 103 can be located at the left side of the Linearkompressor 10.In other words, first casing cover 102 and second housing lid 103 can be with It is configured in mutually facing mode.

The Linearkompressor 10 further includes multiple pipes (pipe) 104,105,106, be set to the shell 101 or Casing cover 102,103, and the refrigerant that can suck and spue.

In detail, multiple pipes 104,105,106 may include: suction line 104, be used to that refrigerant to be made to be drawn into institute State the inside of Linearkompressor 10；Discharge pipe 105 is used to that compressed refrigerant to be made to spue from the Linearkompressor 10； And process duct 106, it is used to supplement refrigerant to the Linearkompressor 10.

For example, the suction line 104 can be combined in first casing cover 102.Refrigerant can be via the suction line 104 Axially it is drawn into the inside of the Linearkompressor 10.

The discharge pipe 105 can be combined in the outer peripheral surface of the shell 101.The refrigeration sucked via the suction line 104 It is compressed while agent can axially be flowed.Also, the compressed refrigerant can be spat via the discharge pipe 105 Out.The discharge pipe 105 is configured in compared with first casing cover 102 closer to the position of the second housing lid 103.

The process duct 106 can be combined in the outer peripheral surface of the shell 101.Operator can by the process duct 106 Refrigerant is injected to the inside of the Linearkompressor 10.

In order to avoid the process duct 106 and the discharge pipe 105 interfere, the process duct 106 can with institute It states and is combined in the different height of discharge pipe 105 with the shell 101.The height refers to, from the leg 50 towards vertical The distance in direction (or radial direction).By making the discharge pipe 105 and the process duct 106 in mutually different height Periphery with the shell 101 is towards combination, the operation convenience of operator can be improved.

The medial surface of first casing cover 102 is provided with lid support portion 102a.It can be tied in the lid support portion 102a Conjunction has aftermentioned second support device 185.The lid support portion 102a and second support device 185 can be understood as to line The device that the main body of property compressor 10 is supported.It is set to inside the shell 101 here, the main body of the compressor refers to Component group, as an example, it may include carry out the driving portion of front-rear reciprocation movement and being used to support the support portion of the driving portion. As shown in Figure 3 and Figure 4, the driving portion may include piston 130, magnet frame 138, permanent magnet 146, supporting element 137 and inhale Enter the component of muffler (muffler) 150 etc..Also, the support portion may include resonant spring 176a, 176b, rear cover 170, The component of stator cover 149, the first support device 165 and the second support device 185 etc..

It may be provided with retainer (stopper) 102b in the medial surface of first casing cover 102.The retainer 102b Can be regarded as: the main body, especially motor sub-assembly 140 for preventing the compressor are because in the mistake for carrying the Linearkompressor 10 Generated vibration or impact etc., collide and damaged structure with the shell 101 in journey.The retainer 102b with The adjacent mode of aftermentioned rear cover 170 configures, thus when the Linearkompressor 10 shakes, the rear cover 170 and institute It states retainer 102b to interfere, thus, it is possible to prevent impact to be transmitted to the motor sub-assembly 140.

It may be provided with spring fastening part 101a in the inner peripheral surface of the shell 101.As an example, the spring fastening part 101a is configurable on the position adjacent with the second housing lid 103.The spring fastening part 101a can be with aftermentioned first First support spring 166 of support arrangement 165 combines.Pass through the spring fastening part 101a and first support device 165 Combine, the front end of Lai Suoshu compressor main body can the shell 101 internal stability be supported, without with it is described Shell 101 is acted in an unreasonable way collision.

Fig. 3 is the stereogram exploded view of the main body of the Linearkompressor of the embodiment of the present invention, and Fig. 4 is the I-I' along Fig. 1 The longitudinal section view of the Linearkompressor of the embodiment of the present invention that line is splitted.

Referring to Fig. 3 and Fig. 4, it is set to the Linearkompressor 10 of the embodiment of the present invention of the inside of the shell 101 Main body may include: frame 110；Cylinder barrel 120 is inserted in the center of the frame 110；Piston 130, in the cylinder barrel 120 inside carries out linear reciprocating motion；And motor sub-assembly 140, driving force is provided to the piston 130.The motor Component 140 can be, and make the piston 130 along the axial linear motor for carrying out linear reciprocating motion of the shell 101.

In detail, the Linearkompressor 10 can also include absorbing silencer 150.The absorbing silencer 150 combines In the piston 130, and for reducing noise caused by the refrigerant sucked due to via suction line 104.Also, The refrigerant sucked via the suction line 104 passes through the absorbing silencer 150 and flows to the inside of the piston 130. As an example, during refrigerant passes through absorbing silencer 150, it can reduce the flow noise of refrigerant.

The absorbing silencer 150 may include multiple mufflers.The multiple muffler may include be combineding with each other First muffler 151, the second muffler 152 and third muffler 153.

First muffler 151 is located at the inside of the piston 130, and second muffler 152 is incorporated into described The rear end of one muffler 151.Also, second muffler 152 is contained in the inside of the third muffler 153, and institute The front end for stating third muffler 153 can be combined in the rear end of first muffler 151.Come from the flow direction of refrigerant It sees, the refrigerant sucked via the suction line 104 can sequentially pass through the third muffler 153, the second muffler 152 And first muffler 151.In this process, the flow noise of refrigerant can be lowered.

There is silencing filter (muffler filter) 153 the absorbing silencer 150 is mountable.The noise reduction filtering Device 153 can be located at the boundary face that first muffler 151 and second muffler 152 combine.As an example, described to disappear Sound filter 153 can have a circular shape, and the edge of the silencing filter 153 can be located at first muffler 151 and the Between the faying face of two mufflers 152 and it is supported.

Here, " axial direction " refers to, the consistent direction in direction to move back and forth with the piston 130, that is, refer to described The extending direction of the length direction central axis of cylindrical housing 101.It, will be from the suction line 104 also, in " axial direction " The direction definition flowed towards the direction of compression space P, i.e. refrigerant is " front (frontward direction) ", And opposite to that direction definition is " rear (rearward direction) ".When the piston 130 is moved towards front When dynamic, the compression space P be can be compressed.

On the contrary, " radial direction " refers to the radial direction of the shell 101, can be defined as carrying out with the piston 130 The vertical direction in the direction of reciprocating motion.

The piston 130 may include: piston only 131, substantially cylindrical shape；And plunger flange portion 132, Extend from the rear end of the piston only 131 towards radial direction.The piston only 131 can be in the cylinder barrel 120 Portion moves back and forth, and the plunger flange portion 132 can move back and forth in the outside of the cylinder barrel 120.The piston Ontology 131 is configured to accommodate at least part of first muffler 151.

In the inside of the cylinder barrel 120, the compression space P that refrigerant is compressed by the piston 130 can be formed with.Also, In the front face center of the piston only 131, it is formed with the binding groove 136 for being inserted into fastening member 22.Also, multiple suckings Hole 133 is formed in the position that predetermined distance is separated from the binding groove 136 towards radial direction.

In detail, the binding groove 136 is formed as the shape of the extension slot extended from circular central part towards radial direction Shape, and be formed as shape identical with the cross sectional shape of aftermentioned guiding piece 21.

In addition, multiple inlet holes 133 are arranged along the circumferencial direction interval of the piston 130, and make Cryogen is flowed into the compression space P via the multiple inlet hole 133.Multiple inlet holes 133 can be along the work The circumferencial direction of the front face of plug 130 separates fixed intervals and configures, as shown, multiple inlet holes 133 also may be constructed group (group).That is, belong between one group of multiple inlet holes 133 be formed as being less than separated by a distance with other groups separate away from From.However, there is no specifically limited for the forming method of the inlet hole 133.

Also, the inlet valve 20 for being selectively opened the inlet hole 133 is provided in the front of the inlet hole 133.

Also, the inlet valve 20 is fixed on the piston only 131 by the fastening members such as screw or bolt 22 Front surface.

In addition, the Linearkompressor 10 can also include guiding piece 21, penetrates through the center of the inlet valve 20 and insert Enter the insertion groove 136.In detail, the fastening member 22 penetrates through the inside of the guiding piece 21, and can be inserted in institute State the inside of piston 130.Also, prevent the inlet valve 20 along the piston by the cross sectional shape of the guiding piece 21 Circumferencial direction dally, and the inlet valve 20 is assembled into and can be moved along the length direction of the guiding piece 21 It is dynamic.

The structure and function of the inlet valve 20 and the guiding piece 21 is described in more detail with reference to the accompanying drawings.

In addition, being provided with discharge cap 190 in front of the compression space P, is formed and spued from the compression space P Refrigerant discharge space；And discharge valve module 161,163, it is incorporated into the discharge cap 190, and described for making Compressed refrigerant spues to the discharge space in compression space P.

The discharge cap 190 can be set to shape made of multiple cap rocks are folded.

The discharge valve module may include: discharge valve 161；And spring assembling body 163, along making the discharge valve 161 directions for being tightly attached to the front end of the cylinder barrel 120 provide elastic force.

In detail, when the pressure of the compression space P is discharge pressure or more, the discharge valve 161 is from the cylinder barrel 120 front surface separation, thus makes compressed refrigerant spue to the discharge space limited by the discharge cap 190.

Also, when the pressure of the compression space P is discharge pressure or more, the spring assembling body 163 is shunk, Thus the discharge valve 161 is separated from the front end of the cylinder barrel 120.

The spring assembling body 163 includes: valve spring 163a；And spring supporting portion 163b, it is used for the valve bullet Spring 163a is supported in the discharge cap 190.As an example, the valve spring 163a may include leaf spring.

The discharge valve 161 is combined with the valve spring 163a, and the rear of the discharge valve 161 or rear surface are tight It is affixed on the front surface (or front end) of the cylinder barrel 120 and is supported.

If the discharge valve 161 is supported in the front surface of the cylinder barrel 120, what the compression space P had kept closed State, if the discharge valve 161 is separated from the front surface of the cylinder barrel 120, the compression space P is opened, thus, it is possible to It spues in the compressed refrigerant in inside of the compression space P.

The compression space P is it is understood that be formed in the space between the inlet valve 20 and the discharge valve 161.And And the inlet valve 20 is formed in the side of the compression space P, the discharge valve 161 is formed in the another of the compression space P Side may be disposed at the opposite side of the inlet valve 20.

The piston 130 is during the inside of the cylinder barrel 120 carries out linear reciprocating motion, the compression space P Pressure when being the suction pressure of refrigerant or less, the inlet valve 20 is opened, and thus refrigerant is flowed into compression sky Between P.

On the contrary, the inlet valve 20 is closed when more than the suction pressure that the pressure of the compression space P is refrigerant, And the refrigerant in the compression space P because being compressed in turn before the piston 130.

In addition, when the pressure of the compression space P is greater than pressure (discharge pressure) in the discharge space, the valve Spring 163a deforms towards front, and the discharge valve 161 is separated from the cylinder barrel 120.Also, the compression space Refrigerant inside P spues via the gap spaced apart of the discharge valve 161 and cylinder barrel 120 to the discharge space.

When terminating the discharge of the refrigerant, the valve spring 163a provides recuperability to the discharge valve 161, thus The discharge valve 161 is set to be tightly attached to the front end of the cylinder barrel 120 again.

The Linearkompressor 10 can also include lid pipe (cover pipe) 162a.The lid pipe 162a is incorporated into described Discharge cap 190, and the refrigerant for flowing to the discharge space being formed in inside the discharge cap 190 is discharged to the outside.

Also, the Linearkompressor 10 can also include ring pipe 162b.One end of the ring pipe 162b is incorporated into The discharge end of the lid pipe 162a, and the other end is connected with the discharge pipe 105 for being formed in the shell 101.

The ring pipe 162b is made of flexible material, and is formed as the shape more relatively long than the lid pipe 162a Shape.Also, the ring pipe 162b can prolong from the lid pipe 162a along the rounded mode of the inner peripheral surface of the shell 101 It stretches, thus can be combined in the discharge pipe 105.

In addition, the frame 110 can be regarded as the structure for keeping the cylinder barrel 120 fixed.As an example, the cylinder barrel 120 can be pressed into the central part of (press fitting) Yu Suoshu frame 110.Also, the discharge cap 190 can be by tight Gu component is incorporated into the front surface of the frame 110.

The motor sub-assembly 140 may include: external stator 141, be fixed on the frame 110, and around described The mode of cylinder barrel 120 configures；Inner stator 148, the external stator 141 inside and 141 interval of external stator and Configuration；And permanent magnet 146, the space between the external stator 141 and inner stator 148.

The permanent magnet 146 can be carried out past by the mutual electromagnetic force between the external stator 141 and inner stator 148 Linear motion.Also, the permanent magnet 146 can be made of the single magnet with a pole, or there are three poles by tool Multiple magnet constitute.

The permanent magnet 146 may be disposed at magnet frame 138.The magnet frame 138 has rough cylindrical shape, and And it can be configured in a manner of the space being inserted between the external stator 141 and inner stator 148.

In detail, the magnet frame 138 can be combined in the plunger flange portion 132 and extend towards front (axial direction). The permanent magnet 146 can be attached to the front end of the magnet frame 138 or the outer peripheral surface of the magnet frame 138.Work as institute When stating permanent magnet 146 and axially moving back and forth, the piston 130 can be formed as one simultaneously with the permanent magnet 146 Axially move back and forth.

The external stator 141 may include coil windings body 141b, 141c, 141d and stator core 141a.The line Enclosing winding body 141b, 141c, 141d may include: spool 141b；And the coil of the circumferencial direction winding along the spool 141c.Also, described coil windings body 141b, 141c, 141d can also include portion of terminal 141d, to the coil 141c The power supply line being connected guides, so that external extraction or exposing of the power supply line to the external stator 141.

The stator core 141a may include multiple pellets (core blocks), and multiple pellets are by multiple laminations (lamination) it is circumferentially laminated and constitutes.Multiple pellets can with around the coil windings body 141b, At least part of mode of 141c configures.

The side of the external stator 141 is provided with stator cover 149.That is, the side of the external stator 141 can be described Frame 110 supports, and the other side can be supported by the stator cover 149.

The Linearkompressor 10 can also include lid fastening member 149a, be used to making the stator cover 149 and described Frame 110 is fastened.The lid fastening member 149a penetrates through the stator cover 149 and prolongs forwards towards the frame 110 It stretches, and can be combined in the frame 110.

The inner stator 148 is fixed on the outer peripheral surface of the frame 110.Also, the inner stator 148 is existed by multiple laminations The outside of the frame 110 is circumferentially laminated and constitutes.

The Linearkompressor 10 can also include the supporting element 137 being supported to the rear end of the piston 130.It is described Supporting element 137 is incorporated into the rear side of the piston 130, and hollow portion can be formed on the inside of it, so that the muffler 150 passes through The hollow portion.

The plunger flange portion 132, magnet frame 138 and the supporting element 137 can be combined by fastening member One.

It may incorporate counterweight 179 in the supporting element 37.The weight of the counterweight 179 can be based on the operation of compressor main body The range of frequency and be determined.

The Linearkompressor 10 can also include rear cover 170.The rear cover 170 is incorporated into the stator cover 149 and court Rearward extend, and can be supported by the second support device 185.

In detail, the rear cover 170 may include three leg-supportings, and it is described fixed that three leg-supportings can be combined in The rear surface of sub- lid 149.Between three leg-supportings and the rear surface of the stator cover 149, gasket may be provided with (spacer)181.By adjusting the thickness of the gasket 181, can determine from the stator cover 149 to the rear cover 170 Rear end distance.Also, the rear cover 170 can be flexibly supported in the supporting element 37.

The Linearkompressor 10 can also include flowing into guide part 156, be incorporated into the rear cover 170, and guide Refrigerant is flowed into the muffler 150.Described at least part for flowing into guide part 156 is inserted into the absorbing silencer 150 inside.

The Linearkompressor 10 may include the multiple resonant springs for having adjusted eigentone respectively, so that described Piston 130 is able to carry out resonance motion.

In detail, multiple resonant springs may include: multiple first resonant spring 176a, in the supporting element 37 It is supported between stator cover 149；And multiple second resonant spring 176b, between the supporting element 37 and rear cover 170 It is supported.

By the effect of multiple resonant springs, pressure can be realized inside the shell 101 of the Linearkompressor 10 Stablizing for contracting owner's body moves back and forth, and can make vibration or noise caused by the movement because of the compressor main body most Smallization.

The supporting element 37 may include the first spring supporting portion 137a, be incorporated into the first resonant spring 176a.

The Linearkompressor 10 may include: the frame 110；Multiple containment members 127,128,129a, 129b, The binding force between component for increasing by 110 periphery of frame.

In detail, multiple containment members 127,128,129a, 129b may include the first containment member 127, set It is placed in the part that the frame 110 and the discharge cap 200 combine.

Multiple containment members 127,128,129a, 129b can also include the second containment member 128, be set to institute State the part that frame 110 and the cylinder barrel 120 combine.

Multiple containment members 127,128,129a, 129b can also include third containment member 129a, and setting exists Between the cylinder barrel 120 and the frame 110.

Multiple containment members 127,128,129a, 129b can also include the 4th containment member 129b, be set to The frame 110 and the inner stator 148 are to the part of combination.

First containment member, 127 to the 4th containment member 129b can be annular.

The Linearkompressor 10 can also include the first support device 165, to the front end of 10 main body of compressor Portion is supported.In detail, first support device 165 is incorporated into the support engaging portion 290 of the discharge cap 200.It is described First support device 165 is adjacent to the second housing lid 103 and configures, and thus, it is possible to the main body progress to the compressor 10 Resilient support.In detail, first support device 165 includes the first support spring 166, and first support spring 166 can It is incorporated into the spring fastening part 101a.

The Linearkompressor 10 can also include the second support device 185, to the rear end of 10 main body of compressor It is supported.Second support device 185 is incorporated into the rear cover 170.Second support device 185 is incorporated into described One casing cover 102, thus, it is possible to the main bodys to the compressor 10 to flexibly support.In detail, second support device 185 include the second support spring 186, and second support spring 186 can be combined in the lid support portion 102a.

Referring to Fig. 5, the guiding piece 21 for constituting the Linearkompressor of the embodiment of the present invention may include: drawing for cylindrical shape Main body 211 is led, insertion hole 212 has been formed in the interior thereof；A pair of anti-rotational rib 213, from the outer peripheral surface of the guide main body 211 Extend towards radial direction.

In detail, the main part of the fastening member 22 is inserted in the insertion hole 212, the pair of anti-rotational rib 213 It is formed in mutually facing position and is disposed on the same plane.Also, the pair of anti-rotational rib 213 can be to draw from described The length for leading front end to the rear end of main body 211 extends.

But the anti-rotational rib 213 is not necessarily be formed in position facing with each other.That is, single anti-rotational rib 213 Can be prominent from the outer peripheral surface of the guide main body 211, three or more anti-rotational ribs 213 can be formed in the guide main body 211 outer peripheral surface.But, it can prevent that dallies centered on the guiding piece 21 to show as long as the inlet valve 20 has The structure of elephant.

In addition, in the state that the guiding piece 21 is inserted in binding groove 136 of the piston 130, from the piston 130 The length (or height) of front face to the front end of the guiding piece 21 be formed as the thickness at least more than the inlet valve 20.

This is in order to ensure when the piston 130 moves back and forth along front-rear direction, the inlet valve 20 is because used Property and the distance that can be separated from the front surface of the piston 130.Also, when the guiding piece 21 it is prominent it is too many when, may It will appear the problem of interfering with the discharge valve 161, therefore, the protrusion length of the guiding piece 21, i.e. from the piston 130 front surface is greater than the thickness of the inlet valve 20 to the distance of the front end of the guiding piece 21.

Referring to Fig. 6, the inlet valve 20 of the Linearkompressor 10 of the embodiment of the present invention may include: valve body (valve Body) 201, it is formed with guiding piece through hole 204 in center portion；Multiple fins (flap) 202, from the valve body 201 Edge with radiated entend.

In detail, the guiding piece through hole 204 is formed as shape corresponding with the cross sectional shape of the guiding piece 21, The guiding piece 21 is enabled to penetrate through the inlet valve 20.Also, the outer of the guiding piece 21 is inserted in the inlet valve 20 In the state of circumferential surface, it can be moved, but cannot circumferentially be revolved along the length direction of the guiding piece 21 Turn.

In addition, multiple fins 202 are used to that the multiple inlet holes 133 for being formed in the piston 130 to be opened and closed, and And multiple fins 202 are made of flexible material, the flexible material is discharged to compression space and via inlet hole 133 The pressure of refrigerant inside P and can bend.

In addition, the fin 202 can divide are as follows: for covering the lateral area of the inlet hole 133；It is described with being located at Inside region between lateral area and the valve body 201 can be formed with opening portion 203 in the inside region.Opening portion 203 are formed in the fin 202, and thus the bending of the fin 202 becomes to be more easier.

It is opened and closed alternatively, it is also possible to be formed as 202 pairs of a fin one or more inlet holes 133.For example, such as figure institute Show, multiple inlet holes 133 form a group (group), and multiple inlet hole groups can be formed in piston 130.The fin 202 can To be formed as quantity corresponding with the quantity of the inlet hole group, a fin 202 can be formed as being opened and closed an inlet hole Group.

It can be formed as a fin 202 inlet hole 133 is opened and closed, but it is not limited to this.

Referring to Fig. 7, before piston is sucking refrigerant and retreats until, institute is tightly attached in the holding of inlet valve 20 completely State the state of the front surface of piston 130.

In detail, in this state, the pressure of the compression space P is greater than the pressure inside the inlet hole 133, because This, the fin 202 of the inlet valve 20 keeps closing the state of the inlet hole 133.

Referring to Fig. 8, when the piston 130 is sucking refrigerant and starts to be retreated, inside the compression space P Pressure sharply declines, and the state in the pressure lower than the refrigerant flowed into from the inlet hole 133.

In addition, when the piston 130 is retreated, since power is not applied to the inlet valve 20, pass through inertia Keep fixed state.When the combination of the piston 130 and the guiding piece 21 is retreated and is moved, the sucking Valve 20 is separated close to the front end of the guiding piece 21, and from the front surface of the piston 130.

Also, the inlet valve 20 makes a relative move, until being stuck in the head of the fastening member 22.In this state Under, refrigerant is discharged to the compression space P via the inlet hole 133.

Referring to Fig. 9, in the state that the inlet valve 20 is blocked by the head of the fastening member 22, if the piston 130 further retreat, then as shown, constituting court due to inertia, the lateral area portion of the fin 202 of the inlet valve 20 It bends forwards.As described above, the lateral area of the refrigerant and the fin 202 that are discharged from the inlet hole 133 While rear surface collides, the fin 202 is made to bend.

Also, after the sucking for terminating refrigerant, if the piston 130 is to compress refrigerant and advance, it is bent The fin 202 be in flat state again, the inlet valve 20 is tightly attached to the front surface of the piston 130.Also, institute It states inlet hole 133 to be closed by the fin 202 of the inlet valve 20, thus interrupts the inflow of refrigerant.

Here, if the front surface length outstanding from the piston 130 of the guiding piece 21 is too long, the inlet valve Time needed for the 20 closing inlet holes 133 is elongated, consequently, it is possible to causing the excessive inflow of refrigerant.That is, may be at For the reason of postponing the response speed of inlet valve 20.Therefore, the protrusion length of the guiding piece 21 is preferably designed to slightly grow In the thickness of the inlet valve 20.

Claims

1. a kind of Linearkompressor characterized by comprising

Cylinder barrel is formed with refrigerant compression space in the inside of the cylinder barrel；

Piston is inserted in the inside of the cylinder barrel, moves back and forth along the axial direction of the cylinder barrel and makes the compression space Expansion or compression, and multiple inlet holes are formed in the front surface of the piston；

Inlet valve is incorporated into the front surface of the piston and is selectively opened and closed multiple inlet holes；

Guiding piece penetrates through the center of the inlet valve and is inserted in the piston；And

Fastening member, the main part of the fastening member are inserted in the inside of the guiding piece, the head card of the fastening member The front end of the guiding piece is terminated in,

The guiding piece is prominent from the front surface of the piston,

When the piston carries out linear reciprocating motion, the inlet valve is because inertia is along the guiding piece direction and the piston The opposite direction of moving direction make a relative move.

2. Linearkompressor according to claim 1, which is characterized in that

When the piston is in order to make refrigerant be flowed into the refrigerant compression space and retreat, the inlet valve is from the work The front surface of plug separates and opens multiple inlet holes,

When the piston is flowed into the refrigerant in the refrigerant compression space and advances to compress, the inlet valve is close to In the piston front surface and close multiple inlet holes.

3. Linearkompressor according to claim 1, which is characterized in that

Thickness of the protrusion length of the guiding piece at least more than the inlet valve.

4. Linearkompressor according to claim 1, which is characterized in that

The guiding piece includes:

Guide main body is formed with insertion hole in the inside of the guide main body, and the main part of the fastening member is inserted in described It is inserted into hole；

One or more anti-rotational ribs, it is prominent from the outer peripheral surface of the guide main body, and prevent the inlet valve from drawing with described Main body is led to pivot about.

5. Linearkompressor according to claim 4, which is characterized in that

The inlet valve includes:

Valve body, in the through hole that is centrally formed with of the valve body, the guide portion penetrates through the through hole；

Multiple fins from the edge of the valve body with radial extension, and are selectively opened and closed multiple inlet holes.

6. Linearkompressor according to claim 5, which is characterized in that

Multiple fins respectively include:

Lateral area covers at least part in multiple inlet holes；

Inside region, is formed with opening portion, and the opening portion becomes easy the bending of the fin.

7. Linearkompressor according to claim 5, which is characterized in that

The through hole is formed as shape identical with the cross sectional shape of the guiding piece.