CN104514701A - A linear compressor - Google Patents
A linear compressor Download PDFInfo
- Publication number
- CN104514701A CN104514701A CN201410155865.5A CN201410155865A CN104514701A CN 104514701 A CN104514701 A CN 104514701A CN 201410155865 A CN201410155865 A CN 201410155865A CN 104514701 A CN104514701 A CN 104514701A
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- China
- Prior art keywords
- press
- main body
- suction
- piston
- bonnet
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
- F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
- F04B35/045—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric using solenoids
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/0027—Pulsation and noise damping means
- F04B39/0044—Pulsation and noise damping means with vibration damping supports
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/0027—Pulsation and noise damping means
- F04B39/0055—Pulsation and noise damping means with a special shape of fluid passage, e.g. bends, throttles, diameter changes, pipes
- F04B39/0061—Pulsation and noise damping means with a special shape of fluid passage, e.g. bends, throttles, diameter changes, pipes using muffler volumes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
- F04B39/121—Casings
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
- H02K41/02—Linear motors; Sectional motors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2210/00—Working fluid
- F05B2210/10—Kind or type
- F05B2210/14—Refrigerants with particular properties, e.g. HFC-134a
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2280/00—Materials; Properties thereof
- F05B2280/40—Organic materials
- F05B2280/4011—Organic materials not otherwise provided for
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Compressor (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The utility model relates to a linear compressor which comprises a casing, a cylinder arranged in the casing, a piston reciprocating in the cylinder, an absorption muffler, an absorption guide device and a rear cover. A refrigerant absorption portion is formed in the casing, the absorption muffler can move with the piston, a refrigerant flow path is formed on the absorption muffler, the absorption guide device is arranged on one side of the piston and is used for guiding a refrigerant absorbed by the absorption portion to the absorption muffler, and the rear cover is combined with the absorption guide device. The rear cover comprises a cover main body and a press portion. An insertion hole for inserting the absorption guide device is formed in the cover main body, the press portion extends from the cover main body, and at least one portion of the absorption guide device is pressed into the press portion in a forced mode.
Description
Technical field
The present invention relates to Linearkompressor.
Background technique
Usual compressor (Compressor) accepts the power from the power generation arrangement such as electric motor or turbo machine, the mechanical device improving pressure is compressed to air, refrigeration agent or other multiple working gas, is widely used in the electrical equipment such as refrigerator, air-conditioning or whole industry.
Such compressor is roughly divided into: reciprocal compressor (Reciprocating compressor), between piston (Piston) and cylinder (Cylinder), be formed with the compression volume for sucking, discharging working gas, make piston carry out straight reciprocating motion in cylinder interior and carry out compressed refrigerant; Rotary compressor (Rotary compressor), at the compression volume carrying out being formed between the roller (Roller) of eccentric rotary and cylinder for sucking, discharging working gas, makes roller carry out eccentric rotary along cylinder inner wall and carrys out compressed refrigerant; Scroll compressor (Scroll compressor), between moving scrollwork (Orbitingscroll) and fixed scroll (Fixed scroll), be formed with the compression volume for sucking, discharging working gas, make described moving scrollwork rotate compressed refrigerant along fixed scroll.
Recently, in described reciprocal compressor, especially develop much following Linearkompressor, that is, piston is directly connected with the drive motor carrying out linear reciprocating motion, thus the mechanical loss do not caused because of motion conversion, the efficiency of compression can be improved, and there is simple structure.
Generally, Linearkompressor is formed in such a way, that is, the enclosure interior closed, and piston carries out linear reciprocating motion by linear motor in cylinder interior, thus sucks discharge after refrigeration agent compresses.
In described linear motor, permanent magnet is between inner stator and external stator, and permanent magnet is driven in the mode of carrying out straight reciprocating motion by the mutual electromagnetic body between permanent magnet and interior (or outer) stator.And along with described permanent magnet is driven with the state be connected with piston, piston carries out linear reciprocating motion in cylinder interior, thus suck discharge after refrigeration agent compresses.
And Linearkompressor comprises: silencing apparatus (muffler), it forms the refrigerant flow path that refrigeration agent is passed through and reduces noise; Suction pipe, guiding refrigeration agent flows into described silencing apparatus by it; Bonnet, it is for supporting described suction pipe.
About such Linearkompressor in the past, the applicant has carried out patent application (hereinafter, referred to as applying in the past) (publication number: 10-2006-0081291).
The described Linearkompressor in the past applied for comprises: bonnet 22, and it is formed with suction pipe 20; Silencing apparatus 37, the fluid sucked by suction pipe 20 is guided to the internal flow path 81 of piston 30 by it, and reduces noise.
And described bonnet 22 combines with the second spring 36, and bonnet 22 described in described second spring 36 elastic support, this second spring 36 is between described bonnet 22 and lip part 34.In the process driving described Linearkompressor, because of the vibration etc. of the elastic force caused by described second spring 36 or linear motor, large load is produced to described bonnet 22.
On the other hand, according to conventional art, described suction pipe 20 is connected with described bonnet 22 by clamp structure, or is attached to described bonnet 22 by binder.In this case, there is following problem, that is, described suction pipe 20 is damaged because of the load from described bonnet 22, or is separated with described bonnet 22.
And, described suction pipe 20 and bonnet 22 are formed by mutually different materials, as an example, described suction pipe 20 is formed by light plastic materials, described bonnet 22 is formed by heavy magnetic, therefore, when being connected described suction pipe 20 and bonnet 22 by clamp structure, there is the problem causing the breakage of described suction pipe 20 because of fastening force.
Summary of the invention
Invent problem to be solved
The present invention proposes to solve such problem, its object is to provide a kind of Linearkompressor that bonnet and suction guide apparatus can be made to combine securely.
For the means of dealing with problems
The Linearkompressor of embodiments of the invention comprises: housing: it is formed with the sucting for sucking refrigeration agent, cylinder, it is arranged on the inside of described housing, piston, it moves back and forth in the inside of described cylinder, suction silencer, it can move together with described piston, and be formed with refrigerant flow path, suction guide apparatus, it is arranged on the side of described piston, and the refrigeration agent sucked by described sucting is guided to described suction silencer, bonnet, it combines with described suction guide apparatus; Described bonnet comprises: lid main body, and it is formed with the patchhole for inserting described suction guide apparatus, press-in portion, and it extends from described lid main body, and the pressure at least partially of described suction guide apparatus is pressed in this press-in portion.
The effect of invention
According to such the present invention, suction guide apparatus can be forced to be pressed in bonnet, therefore there is following advantage, that is, described bonnet and suction guide apparatus can be made to combine securely.
Especially, according to the degree of forcing press-in, described suction guide apparatus deforms, and described bonnet and suction guide apparatus engage naturally, therefore, it is possible to make described bonnet and suction guide apparatus combine securely.
And the side of described suction guide apparatus is supported by stopper part, and opposite side is supported by the engagement portion deformed in process of press in, therefore, it is possible to prevent the phenomenon that described suction guide apparatus is separated with described bonnet.
In addition, because described bonnet and suction guide apparatus combine securely, therefore, it is possible to prevent following phenomenon, namely, in the process driving Linearkompressor, described bonnet and suction guide apparatus loosen and mutually produce friction, cause described suction guide apparatus damaged thus.
Accompanying drawing explanation
Fig. 1 is the sectional view of the internal structure of the Linearkompressor that embodiments of the invention are shown.
Fig. 2 is the stereogram of the structure of the rear case component that embodiments of the invention are shown.
Fig. 3 is the bonnet of embodiments of the invention and the exploded view of suction guide apparatus.
Fig. 4 is the figure that the appearance that the bonnet of embodiments of the invention and suction guide apparatus combine is shown.
Fig. 5 is the sectional view of the I-I' line cutting along Fig. 4.
The sectional view that Fig. 5 " A " part is amplified by Fig. 6.
Fig. 7 is the sectional view of the relative position that suction silencer when the piston of embodiments of the invention is in primary importance and suction guide apparatus are shown.
Fig. 8 is the sectional view of the relative position that suction silencer when the piston of embodiments of the invention is in the second place and suction guide apparatus are shown.
Wherein, description of reference numerals is as follows:
10: Linearkompressor
100: housing
110: framework
120: cylinder
130: piston
135: support
138: connector element
151,155: the first springs, the second spring
200: motor sub-assembly
230: permanent magnet
240: stator cover
270: suction silencer
300: rear case component
400: bonnet
410: lid main body
414: connecting part
420: spring supporting portion
430: press-in portion
435: interference part
500: suction guide apparatus
503: stopper part
510: outstanding guide portion
520: be pressed into corresponding portion
522: engagement portion
530: flow guides
Embodiment
Below, with reference to accompanying drawing, specific embodiment of the present invention is described.But thought of the present invention is not limited to the embodiment proposed, the those skilled in the art understanding thought of the present invention can change places at the range content of identical thought and propose other embodiment.
Fig. 1 is the sectional view of the internal structure of the Linearkompressor that embodiments of the invention are shown.
With reference to Fig. 1, the Linearkompressor 10 of embodiments of the invention comprises: cylinder 120, and it is arranged on the inside of housing 100; Piston 130, it carries out linear reciprocating motion in the inside of described cylinder 120; Motor sub-assembly 200, it gives driving force to described piston 130.Described housing 100 is combined into by upper body and lower case.Described motor sub-assembly 200 can be described as " linear motor "
Described cylinder 120 can be formed by the aluminium material (aluminium or aluminum alloy) as nonmagnetic material.
By being formed described cylinder 120 by aluminium material, the magnetic flux that can prevent described motor sub-assembly 200 from producing is passed to described cylinder 120 and the phenomenon of External leakage to described cylinder 120.And, form described cylinder 120 by extruded rod processing method.
Described piston 130 can be formed by the aluminium material (aluminium or aluminum alloy) as nonmagnetic material.By being formed described piston 130 by aluminium material, the magnetic flux that can prevent motor sub-assembly 200 from producing is passed to described piston 130 and the phenomenon of External leakage to described piston 130.And, form described piston 130 by forging method.
And the material constituent ratio of described cylinder 120 and piston 130 and kind and composition ratio can be identical.Described piston 130 is formed by identical material (aluminium) with cylinder 120, and thermal expansion coefficient is mutually identical thus.During Linearkompressor 10 runs, the environment of high temperature (roughly 100 DEG C) is formed in the inside of described housing 100, and due to described piston 130 identical with the thermal expansion coefficient of cylinder 120, therefore there is the thermal distortion of identical amount in described piston 130 and cylinder 120.
As a result, piston 130 and cylinder 120 can be prevented with mutually different sizes or to different directions, thermal distortion occurs and phenomenon that piston 130 interferes with described cylinder 120 during motion.
Described housing 100 comprises: sucting 101, and it flows into for making refrigeration agent; Discharge portion 105, it is for discharging the refrigeration agent of the internal compression at described cylinder 120.The refrigeration agent sucked by described sucting 101 is via the internal flow of suction silencer 270 to described piston 130.At refrigeration agent in the process of described suction silencer 270, the noise with multi-frequency can be reduced.
The compression volume P that described piston 130 carrys out compressed refrigerant is formed through in the inside of described cylinder 120.And, described piston 130 is formed the inlet hole 131a for making refrigeration agent flow into described compression volume P, and is provided with the suction valve 132 for optionally opening described inlet hole 131a in the side of described inlet hole 131a.
The side of described compression volume P is provided with discharge valve assembly 170,172,174, and this discharge valve assembly 170,172,174 is for discharging the refrigeration agent compressed in described compression volume P.That is, described compression volume P can be understood as the space between a side end and discharge valve assembly 170,172,174 being formed in described piston 130.
Described discharge valve assembly 170,172,174 comprises: discharge cap 172, and it forms the discharge space of refrigeration agent; Expulsion valve 170, when the pressure of described compression volume P is more than head pressure, this expulsion valve 170 is open makes refrigeration agent flow in described discharge space; Valve spring 174, it is arranged between described expulsion valve 170 and discharge cap 172, gives elastic force in axial direction.At this, described " axle direction " can be understood as, the direction that described piston 130 moves back and forth, the transverse direction namely in Fig. 1.
Described suction valve 132 is formed in the side of described compression volume P, and described expulsion valve 170 is formed in the opposite side of described compression volume P, and namely described expulsion valve 170 is arranged on the side contrary with described suction valve 132 side.
Carry out in the process of linear reciprocating motion at described piston 130 in the inside of described cylinder 120, head pressure described in the pressure ratio of described compression volume P low and be below suction pressure time, described suction valve 132 is open, thus refrigeration agent is sucked into described compression volume P.On the other hand, when the pressure of described compression volume P is more than described suction pressure, under the state of closing described suction valve 132, compress the refrigeration agent of described compression volume P.
On the other hand, when the pressure of described compression volume P is more than described head pressure, described valve spring 174 deforms to make described expulsion valve 170 open, thus refrigeration agent to be discharged and discharge space to discharge cap 172 is discharged from described compression volume P.
And the refrigeration agent in described discharge space flows in Circulation pipe 178 via described discharge silencing apparatus 176.Described discharge silencing apparatus 176 can reduce by the hydrodynamic noise of the refrigeration agent compressed, and described Circulation pipe 178 guides to described discharge portion 105 by by the refrigeration agent compressed.Described Circulation pipe 178 is combined with described discharge silencing apparatus 176, and extends deviously, and is combined with described discharge portion 105.
Described Linearkompressor 10 also comprises framework 110.Described framework 110 is the structures for fixing described cylinder 120, and described framework 110 is formed as one with described cylinder 120 or combined by other clamp structure.And described discharge cap 172 and discharge silencing apparatus 176 can combine with described framework 110.
Described motor sub-assembly 200 comprises: external stator 210, and it is fixed on described framework 110, and surrounds described cylinder 120; Inner stator 220, it is configured in the inner side of described external stator 210, and separates with described external stator 210; Permanent magnet 230, in its space between described external stator 210 and inner stator 220.
Described permanent magnet 230 can carry out straight reciprocating motion by the mutual electromagnetic force between described external stator 210 and inner stator 220.Further, described permanent magnet 230 can be formed by the single magnet with a pole, or is combined into by multiple magnet with 3 poles.
And described permanent magnet 230 can be formed by the Ferrite Material of relative moderate.
Described permanent magnet 230 combines with described piston 130 by connector element 138.Described connector element 138 can extend from a side end of described piston 130 towards described permanent magnet 130.Along with described permanent magnet 230 moves linearly, described piston 130 can carry out straight reciprocating motion in axial direction together with described permanent magnet 230.
Described external stator 210 comprises coil around body 213,215 and stator core 211.
Described coil comprises bobbin (bobbin) 213 and the coil 215 be circumferentially wound around at described bobbin 213 around body.The cross section of described coil 215 can be polygonal shape, as an example, can be hexagonal shape.
Described stator core 211 is that multiple thin plate (lamination) is laminated in a circumferential direction, and described stator core 211 surrounds described coil around body.
When applying electric current to described motor sub-assembly 200, streaming current in described coil 215, owing to being flowing in the electric current of described coil 215, form magnetic flux (flux) at described coil 215 periphery, described magnetic flux forms closed-loop path to flow along described external stator 210 and inner stator 220.
The magnetic flux flowed along described external stator 210 and inner stator 220 and the magnetic flux of described permanent magnet 230 are had an effect mutually, thus produce the power making the movement of described permanent magnet 230.
The side of described external stator 210 is provided with stator cover 240.One side end of described external stator 210 can be supported by described framework 110, and end side can be supported by described stator cover 240.Described stator cover 240 can be called " motor cover ".
Described inner stator 220 is fixed on the periphery of described cylinder 120.And described inner stator 220 is that multiple thin plate is circumferentially laminated in the outside of described cylinder 120.
Described Linearkompressor 10 also comprises: support 135, and it is for supporting described piston 130; Bonnet 400, it is arranged on the front of described support 135, and combines with described stator cover 240.
Described support 135 combines with the outside of described connector element 138.And described bonnet 400 covers described suction silencer 270 at least partially.
Described Linearkompressor 10 also comprises the suction guide apparatus 500 combined with described bonnet 400.Described suction guide apparatus 500 can be understood as, and the refrigeration agent sucked is guided to the device of described suction silencer 270 by described sucting 101.
Described suction guide apparatus 500 combines with described bonnet 400 and rearward extends, carry out in the process of linear reciprocating motion at described piston 130 and suction silencer 270, described suction guide apparatus 500 can close to described suction silencer 270 or away from described suction silencer 270(with reference to 7,8).
Described Linearkompressor 10 comprises the multiple springs as resilient member, and each natural vibration number of multiple spring is conditioned, so that described piston 130 can carry out resonance motion.
Described multiple spring comprises: the first spring 151, and it is supported between described support 135 and stator cover 240; Second spring 155, it is supported between described support 135 and bonnet 400.The elasticity coefficient of described first spring 151 and the second spring 155 can be identical.
Described first spring 151 can be provided with multiple in the upside of described cylinder 120 or piston 130 and downside, and described second spring 155 can be provided with multiple in the front of described cylinder 120 or piston 130.
At this, described " front " can be understood as, from described piston 130 towards the direction of described sucting 101.That is, can be understood as at " rear " from described sucting 101 towards the direction of described discharge valve assembly 170,172,174.That is, the flow direction of refrigeration agent can be come regulation front (or upstream) and rear (or downstream) as benchmark.
Further, radial direction can be understood as, with the direction of described front and rear vertical.These terms also can use in the following description equally.
Can the oil of store predetermined in the inner bottom surface of described housing 100.And, the oil supplying device 160 for aspirating oil can be set in the bottom of described housing 100.The vibration that described oil supplying device 160 produces by carrying out linear reciprocating motion along with described piston 130 carrys out work, aspirates oil upward thus.
Described Linearkompressor 10 also comprises fuel supply line 165, and this fuel supply line 165 guides oil flow from described oil supplying device 160.Described fuel supply line 165 can extend to space between described cylinder 120 and piston 130 from described oil supplying device 160.
The oil aspirated from described oil supplying device 160 is supplied to the space between described cylinder 120 and piston 130 via described fuel supply line 165, thus performs the effect of cooling and lubrication.
Fig. 2 is the stereogram of the structure of the rear case component that embodiments of the invention are shown, Fig. 3 is the bonnet of embodiments of the invention and the exploded view of suction guide apparatus, and Fig. 4 is the figure that the appearance that the bonnet of embodiments of the invention and suction guide apparatus combine is shown.
With reference to Fig. 2 to Fig. 4, the rear case component 300 of embodiments of the invention comprises bonnet 400 and suction guide apparatus 500.
Described suction guide apparatus 500 can be formed by the Blend materials of plastic materials and glass fibre.As an example, described plastic materials comprises PBT resin (Polybutylene Terephtalate resin).And described bonnet 400 can be formed by the metallic material as magnetic.
Described bonnet 400 comprises: lid main body 410, and described suction guide apparatus 500 inserts this lid main body 410; Extension part 412, it rearward extends from the both sides of described lid main body 410; Connecting part 414, it extends outside radial direction from described extension part 412, and combines with described stator cover 240.
Described connecting part 414 is formed with at least more than one attachment hole 416, the clamp structure (not shown) be connected with described stator cover 240 this attachment hole 416 through.
Described lid main body 410 is provided with the multiple spring supporting portions 420 for supporting described second spring 155.Described spring supporting portion 420 is outstanding from described lid main body 410 towards rear, as an example, with the mode conically shape that can combine with a side end of described second spring 155.
Described bonnet 400 comprises the press-in portion 430 of giving prominence to toward the front from described lid main body 410.The drum of described press-in portion 430 in general hollow, is formed with the insertion space 432 for inserting described suction guide apparatus 500 in inside.
Described suction guide apparatus 500 comprises: guide main body 501, and it is the substantially cylindrical shape of hollow; Outstanding guide portion 510, it is given prominence to toward the front from described guide main body 501, for the refrigeration agent sucked by described sucting 101 is guided to described suction silencer 270; Stopper part 503(stopper), it gives prominence to specific length from the outer circumferential face of described guide main body 501.
The cylindrical shape of described outstanding guide portion 510 in general hollow, the refrigeration agent sucked by described sucting 101, to arrange close to the mode of described sucting 101, is guided to the inner space of described outstanding guide portion 510 by described outstanding guide portion 510.Described outstanding guide portion 510 extends from described guide main body 501 towards described sucting 101 direction, and can accommodating refrigeration agent.
Described outstanding guide portion 510 combines with the front face 513 being formed with ostium 515.Described front face 513 extends from the rearward end of described outstanding guide portion 510 to inner sides of radius direction, and in roughly disc-shape.And described ostium 515 is central part regions of through described front face 513 in the longitudinal direction.
The refrigeration agent sucked by described sucting 101 is directed to the inner space of described outstanding guide portion 510, and through described ostium 515, rearward flows towards described suction silencer 270.Now, the diameter of described ostium 515 is less than the diameter of described outstanding guide portion 510, and therefore when refrigeration agent flows from described ostium 515 to described outstanding guide portion 510, the flow velocity of refrigeration agent uprises.
Using the length direction (fore-and-aft direction) of described guide main body 501 as benchmark, described stopper part 503 is arranged on substantially central portion, and surrounds the outer circumferential face of described guide main body 501.When described suction guide apparatus 500 combines with described bonnet 400, described stopper part 503 can limit the insertion distance of described suction guide apparatus 500.
Described suction guide apparatus 500 is forced to be pressed in described bonnet 400, thus described suction guide apparatus 500 is combined with described bonnet 400.
In detail, described suction guide apparatus 500 comprises: be pressed into corresponding portion 520, and it is inserted in described press-in portion 430 and is pressed by described press-in portion 430; Variant part 525, it extends linearly in the mode of cutting away the corresponding portion of described press-in and forms, and be inserted in the process that described press-in portion 430 deforms in the corresponding portion of described press-in 520, this variant part 525 can guarantee deformation space.
Short from the distance of central part to the corresponding portion of described press-in 520 of the guide main body 501 of cylindrical shape from the distance ratio of central part to described variant part 525 of the guide main body 501 of cylindrical shape.Therefore, described variant part 525 can be understood as, not by part that described press-in portion 430 presses.
The corresponding portion of described press-in 520 is formed in the front part of described guide main body 501, and has the radius of curvature of regulation.Can be understood as, the corresponding portion of described press-in 520 forms described guide main body 501 at least partially.And described variant part 525 is provided with multiple in the mode mutually separated.
Described variant part 525 is arranged between the corresponding portion 520 of press-in, and extends linearly to face shape directly.Described variant part 525 can be understood as, by the outer circumferential face of described guide main body 501 cutting definite part linearly.And described variant part 525 is provided with multiple, the two ends of described variant part 525 combine in portion 520 corresponding to described press-in respectively.
Described guide main body 501 also comprises engagement portion 522, and this engagement portion 522 forwards extends from the corresponding portion 520 of described press-in, and fastens with the outside of described press-in portion 430.Described engagement portion 522 can be arranged on the tip side of described guide main body 501.
Namely, can be understood as, the corresponding portion 520 of described press-in be inserted in the part of described press-in portion 430 when described suction guide apparatus 500 combines with described bonnet 400, and described engagement portion 522 is parts protruding outside to described press-in portion 430 of described suction guide apparatus 500.
With reference to Fig. 3 and Fig. 4, the combination for described suction guide apparatus 500 and bonnet 400 is briefly described.
Described suction guide apparatus 500 forwards moves from the rear of described lid main body 410, thus makes described outstanding guide portion 510 be inserted in the inside of described press-in portion 430.
The external diameter of described outstanding guide portion 510 is less than the internal diameter of described press-in portion 430, and therefore described outstanding guide portion 510 can move in the front by described press-in portion 430 and to described press-in portion 430.
The external diameter of described guide main body 501 is less than the internal diameter of described press-in portion 430 slightly.Therefore, described guide main body 501, in the process being inserted in described press-in portion 430, interferes with described press-in portion 430, and described guide main body 501 is filled in by the power that can apply more than prescribed level firmly (forcing press-in) in described press-in portion 430.
In detail, the corresponding portion of described press-in 520 can deform in the process of the inside by described press-in portion 430, that is, can deform to the direction of size reduction, described variant part 525 guarantees the spare space for making the corresponding portion 520 of described press-in deform.
Described suction guide apparatus 500 can move to till described stopper part 503 interfered by described bonnet 400.When described stopper part 503 is interfered by described bonnet 400, limit described suction guide apparatus 500 and insert further.
Between described suction guide apparatus 500 and bonnet 400 completely in conjunction with time, described press-in correspondence portion 520 is positioned at the inner side of described press-in portion 430 with the state of distortion.And described engagement portion 522 is protruding outside to described press-in portion 430, and fasten with the end of described press-in portion 430.
Below, the pressing structure for suction guide apparatus 500 and bonnet 400 is described in detail.
Fig. 5 is the sectional view of the I-I' line cutting along Fig. 4, the sectional view that Fig. 5 " A " part is amplified by Fig. 6.
With reference to Fig. 5 and Fig. 6, the guide main body 501 of the suction guide apparatus 500 of embodiments of the invention is inserted in the patchhole 405 of bonnet 400.The press-in portion 430 of described bonnet 400 forwards extends from described patchhole 405.
Described suction guide apparatus 500 comprises the corresponding portion 520 of press-in, and this press-in correspondence portion 520 will be arranged at the inner side of described press-in portion 430, and is pressed by described press-in portion 430.The corresponding portion of described press-in 520 is pressed into the inside in described press-in portion 430 by described patchhole 405, therefore may deform.
Now, with regard to the distortion in the corresponding portion 520 of described press-in, there is the amount of deformation of t1 in the inner radial direction to described guide main body 501.
Described guide main body 501 comprises engagement portion 522, and this engagement portion 522 is formed in the front side in the corresponding portion 520 of described press-in, and fastens with the end of described press-in portion 430.Described engagement portion 522 is formed in the region corresponding with the thickness W1 of described front face 513 in the outer circumferential face of described guide main body 501.
Be pressed in the process of described press-in portion 430 at described guide main body 501, described engagement portion 522 is pressed by described press-in portion 430 and deforms, but under the state of the front movement to described press-in portion 430, be to the outstanding shape of radial direction because of recuperability.
The end being formed with the guide main body 501 of described engagement portion 522 is supported by described front face 513 in the radial direction, and therefore the intensity of the end of guide main body 501 is high.On the other hand, the part being formed with the guide main body 501 in the corresponding portion of described press-in 520 is supported by the thickness of self of described guide main body 501, and therefore intensity is low.
Therefore, under the state that described guide main body 501 is inserted in described press-in portion 430 completely, the corresponding portion 520 of described press-in internally radial direction deforms t1, and described engagement portion 522 externally radial direction deforms t2, thus fastens with described press-in portion 430.
Described t1 is interpreted as, relative to the virtual line (l1) that the outer circumferential face of described guide main body 501 is extended, and the distance that the corresponding portion 520 of described press-in is pressed.And described t2 is interpreted as, relative to described virtual line (l1), described engagement portion 522 externally radial direction restore distance.
And described stopper part 503 can fasten with the interference part 435 of lid main body 410.At this, described interference part 435 can be regarded as, and is formed in a part for the lid main body 410 of the outer edge side of described patchhole 405.
In sum, the corresponding portion of described press-in 520 is the parts of the guide main body 501 be arranged between the back side 513a of described front face 513 and described stopper part 503, and the length of fore-and-aft direction is C1.
According to such structure, engagement portion 522 and the stopper part 503 of described guide main body 501 fasten with the two ends of described press-in portion 430, therefore have the advantage that described suction guide apparatus 500 can be made to be combined with described bonnet 400 securely.
And, because described suction guide apparatus 500 can combine with described bonnet 400 securely, therefore, it is possible to prevent following phenomenon, namely, during linear compressor operating, described suction guide apparatus 500 is separated with described bonnet 400, or described suction guide apparatus 500 is interfered by described bonnet 400 and damaged.
On the other hand, described suction guide apparatus 500 also comprises flow guides 530, and this flow guides 530 rearward extends from described ostium 515 towards described suction silencer 270.The refrigerant flow path 535 for making flow of refrigerant is formed in the inside of described flow guides 530.
Below, the situation of refrigeration agent in Linearkompressor internal flow is described.
Fig. 7 is the sectional view of the relative position that suction silencer when the piston of embodiments of the invention is in primary importance and suction guide apparatus are shown, Fig. 8 is the sectional view of the relative position that suction silencer when the piston of embodiments of the invention is in the second place and suction guide apparatus are shown.
Fig. 7 illustrates the appearance of described compressor 10 inside when the piston 130 of embodiments of the invention is in primary importance.At this, described " primary importance " is interpreted as, the lower dead center (Bottom Dead Center, BDC) of described piston 130.
When making described permanent magnet 230 mobile to a direction (left direction of Fig. 7 or front) driving described motor sub-assembly 200, the piston 130 combined with described permanent magnet 230 moves to a described direction.And the suction silencer 270 combined with described permanent magnet 230 also moves to a described direction.
Along with described permanent magnet 230 moves, described compression volume P expands and produces pressure P 1.Now, pressure P 1 is less than the suction pressure of refrigeration agent.Therefore, refrigeration agent can be sucked into described compression volume P through described suction silencer 270 by open suction valve 132.
Described suction silencer 270 comprises: muffler body 271, and it is the mode of movement can be placed in the inner side of described suction guide apparatus 500; Main body insertion part 273, it combines with the inside of described muffler body 271, and the flowing path section area of refrigeration agent changes; Piston insertion part 275, it combines with described muffler body 271, and extends to the inside of described piston 130.
And described piston insertion part 275 comprises suction guide portion 276, and the refrigeration agent that described piston insertion part 275 is discharged is guided to described inlet hole 131a side by this suction guide portion 276.
In detail, along with described permanent magnet 230 forwards moves, described suction silencer 270 forwards moves.
Along with described suction silencer 270 forwards moves, described flow guides 530 is incorporated in the inside of muffler body 271.Along with described flow guides 530 is introduced into, the end of described flow guides 530 and the first inlet hole 274 of main body insertion part 273 are positioned at approximating position.
Therefore, the refrigeration agent flowed into by described flow guides 530 easily can be flowed to described main body insertion part 273 by described first inlet hole 274, therefore, it is possible to reduce the stream loss of refrigeration agent, therefore, it is possible to improve compression efficiency.
And the refrigeration agent flowing in described main body insertion part 273 flows in the inner space of described piston insertion part 275, and is sucked into described inlet hole 131a.
On the other hand, the refrigeration agent at least partially in the refrigeration agent that described piston insertion part 275 is discharged is stored in the storage space of formation in described suction guide portion 276, thus can prevent the front to described suction guide portion 276 from flowing.
Fig. 8 illustrates the appearance of described compressor 10 inside when the piston 130 of embodiments of the invention is in the second place.At this, described " second place " is interpreted as, the top dead center (TopDead Center, TDC) of described piston 130.
Under the state of Fig. 6, when sucking the release of refrigeration agent to described compression volume P, described permanent magnet 230 is mobile to other direction (right direction of Fig. 7 or rear), and therefore described piston 130 and suction silencer 270 also rearward move.In this process, the refrigeration agent of described piston 130 to described compression volume P compresses, and the first inlet hole 274 of described main body insertion part 273 is away from described flow guides 530.
When the refrigerant pressure of described compression volume P is more than head pressure, described expulsion valve 170 is opened, and refrigeration agent is flowed to the inner space of described discharge silencing apparatus 176 by open expulsion valve 170.The hydrodynamic noise of low-compression refrigeration agent can fall in described discharge silencing apparatus 176.
And refrigeration agent flows in Circulation pipe 178 through described discharge silencing apparatus 176, and be directed to described discharge portion 105.
Further, in the above-described embodiments, although the description of the situation that above-mentioned press-in portion 430 is forwards given prominence to from above-mentioned lid main body 410, but above-mentioned press-in portion 430 also rearward can be given prominence to from above-mentioned lid main body 410.
Claims (15)
1. a Linearkompressor, is characterized in that,
Comprise:
Housing: it is formed with the sucting for sucking refrigeration agent,
Cylinder, it is arranged on the inside of described housing,
Piston, it moves back and forth in the inside of described cylinder,
Suction silencer, it can move together with described piston, and is formed with refrigerant flow path,
Suction guide apparatus, it is arranged on the side of described piston, and the refrigeration agent sucked by described sucting is guided to described suction silencer,
Bonnet, it combines with described suction guide apparatus;
Described bonnet comprises:
Lid main body, it is formed with the patchhole for inserting described suction guide apparatus,
Press-in portion, it extends from described lid main body, and the pressure at least partially of described suction guide apparatus is pressed in this press-in portion.
2. Linearkompressor according to claim 1, is characterized in that,
Described suction guide apparatus comprises the guide main body of drum;
Described guide main body comprises the corresponding portion of press-in, and this press-in correspondence portion to be formed in the outer circumferential face of described guide main body at least partially, and this press-in correspondence portion is pressed by described press-in portion.
3. Linearkompressor according to claim 2, is characterized in that,
Described press-in portion extends to the side being formed with described sucting of described lid main body;
Described suction guide apparatus also comprises engagement portion, and this engagement portion is arranged at the side being formed with described sucting in the corresponding portion of described press-in, and fastens with described press-in portion.
4. Linearkompressor according to claim 3, is characterized in that,
Under the state that described suction guide apparatus and described bonnet combine, described engagement portion is outstanding to forming the side stating sucting to some extent from the end of described press-in portion.
5. Linearkompressor according to claim 3, is characterized in that,
Described suction guide apparatus also comprises stopper part, and this stopper part is arranged on the outer circumferential face of described guide main body, for limiting the distance that described guide main body is inserted by described patchhole.
6. Linearkompressor according to claim 2, is characterized in that,
The corresponding portion of described press-in is formed in the region between described engagement portion in the outer circumferential face of described guide main body and stopper part.
7. Linearkompressor according to claim 3, is characterized in that,
Under the state that described suction guide apparatus and described bonnet combine,
Relative to the virtual line that the outer circumferential face of described guide main body is extended,
The corresponding portion of described press-in to the inner radial Direction distortion of described guide main body,
Described engagement portion extends to the outer radius direction of described guide main body.
8. Linearkompressor according to claim 2, is characterized in that,
The corresponding portion of described press-in is formed with bending curved surface.
9. Linearkompressor according to claim 2, is characterized in that,
The variant part that the mode that described guide main body also comprises cutting away the corresponding portion of described press-in extends linearly, during in the corresponding portion of described press-in by described press-in portion pressing, this variant part is provided for the space that the corresponding portion of described press-in is deformed.
10. Linearkompressor according to claim 9, is characterized in that,
Described variant part is separated to be provided with multiple mutually.
11. Linearkompressors according to claim 2, is characterized in that,
Described suction guide apparatus also comprises:
Outstanding guide portion, it extends from described guide main body to described sucting direction, for the accommodating refrigeration agent sucked by described sucting;
Front face, it combines with described outstanding guide portion, is formed with the ostium making to be passed through by the refrigeration agent of described outstanding guide portion;
The diameter of described ostium is less than the diameter of described outstanding guide portion.
12. Linearkompressors according to claim 11, is characterized in that,
Described suction guide apparatus also comprises flow guides, and this flow guides extends from described ostium towards described suction silencer, and is formed with refrigerant flow path in the inside of this flow guides,
In the process that described piston and suction silencer move back and forth, described flow guides is close to described suction silencer or away from described suction silencer.
13. Linearkompressors according to claim 1, is characterized in that,
Also comprise:
Linear motor, it provides power to described piston,
Motor cover, it is supported on the side of described linear motor;
Described bonnet combines with described motor cover.
14. Linearkompressors according to claim 13, is characterized in that,
Comprise:
Support, it combines with the side of described piston, moves together with described piston;
Spring, it combines with described support, bonnet between described support and bonnet, for providing recuperability.
15. Linearkompressors according to claim 1, is characterized in that,
Described suction guide apparatus is mixed by PBT resin and glass fibre.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020130118463A KR102067096B1 (en) | 2013-10-04 | 2013-10-04 | A linear compressor |
| KR10-2013-0118463 | 2013-10-04 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104514701A true CN104514701A (en) | 2015-04-15 |
| CN104514701B CN104514701B (en) | 2017-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420188861.2U Withdrawn - After Issue CN203835681U (en) | 2013-10-04 | 2014-04-17 | Linear compressor |
| CN201410155865.5A Active CN104514701B (en) | 2013-10-04 | 2014-04-17 | A linear compressor |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420188861.2U Withdrawn - After Issue CN203835681U (en) | 2013-10-04 | 2014-04-17 | Linear compressor |
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| Country | Link |
|---|---|
| KR (1) | KR102067096B1 (en) |
| CN (2) | CN203835681U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114687994A (en) * | 2020-12-30 | 2022-07-01 | Lg电子株式会社 | Linear compressor |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102067096B1 (en) * | 2013-10-04 | 2020-01-16 | 엘지전자 주식회사 | A linear compressor |
| CN104454469B (en) * | 2014-12-08 | 2016-07-06 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of assembling apparatus and method of linear compressor moving parts |
| KR102300205B1 (en) | 2015-05-21 | 2021-09-10 | 엘지전자 주식회사 | A linear compressor |
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| US6398523B1 (en) * | 1999-08-19 | 2002-06-04 | Lg Electronics Inc. | Linear compressor |
| KR20060040340A (en) * | 2004-11-05 | 2006-05-10 | 엘지전자 주식회사 | Back cover of linear compressor and plate for manufactureing the same and the manufacturing method of the same |
| KR20070075900A (en) * | 2006-01-16 | 2007-07-24 | 엘지전자 주식회사 | Suction muffler for linear compressor |
| CN101835978A (en) * | 2007-10-24 | 2010-09-15 | Lg电子株式会社 | Linear compressor |
| CN203835681U (en) * | 2013-10-04 | 2014-09-17 | Lg电子株式会社 | Linear compressor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100613516B1 (en) * | 2004-11-03 | 2006-08-17 | 엘지전자 주식회사 | Linear compressor |
| KR20090041652A (en) * | 2007-10-24 | 2009-04-29 | 엘지전자 주식회사 | Suction muffler of linear compressor |
-
2013
- 2013-10-04 KR KR1020130118463A patent/KR102067096B1/en active IP Right Grant
-
2014
- 2014-04-17 CN CN201420188861.2U patent/CN203835681U/en not_active Withdrawn - After Issue
- 2014-04-17 CN CN201410155865.5A patent/CN104514701B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6398523B1 (en) * | 1999-08-19 | 2002-06-04 | Lg Electronics Inc. | Linear compressor |
| KR20060040340A (en) * | 2004-11-05 | 2006-05-10 | 엘지전자 주식회사 | Back cover of linear compressor and plate for manufactureing the same and the manufacturing method of the same |
| KR20070075900A (en) * | 2006-01-16 | 2007-07-24 | 엘지전자 주식회사 | Suction muffler for linear compressor |
| CN101835978A (en) * | 2007-10-24 | 2010-09-15 | Lg电子株式会社 | Linear compressor |
| CN203835681U (en) * | 2013-10-04 | 2014-09-17 | Lg电子株式会社 | Linear compressor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114687994A (en) * | 2020-12-30 | 2022-07-01 | Lg电子株式会社 | Linear compressor |
| CN114687994B (en) * | 2020-12-30 | 2023-12-12 | Lg电子株式会社 | linear compressor |
| US11905940B2 (en) | 2020-12-30 | 2024-02-20 | Lg Electronics Inc. | Linear compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN203835681U (en) | 2014-09-17 |
| KR20150039991A (en) | 2015-04-14 |
| CN104514701B (en) | 2017-05-03 |
| KR102067096B1 (en) | 2020-01-16 |
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