CN108757381A - A kind of double cylinder opposed type oil-free linear compressor - Google Patents
A kind of double cylinder opposed type oil-free linear compressor Download PDFInfo
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- CN108757381A CN108757381A CN201810546393.4A CN201810546393A CN108757381A CN 108757381 A CN108757381 A CN 108757381A CN 201810546393 A CN201810546393 A CN 201810546393A CN 108757381 A CN108757381 A CN 108757381A
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- 238000007906 compression Methods 0.000 claims abstract description 27
- 230000006835 compression Effects 0.000 claims abstract description 23
- 230000000740 bleeding effect Effects 0.000 claims abstract description 17
- 230000000712 assembly Effects 0.000 claims abstract description 9
- 238000000429 assembly Methods 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims abstract description 9
- 230000005389 magnetism Effects 0.000 claims description 18
- 238000004026 adhesive bonding Methods 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 6
- 238000009792 diffusion process Methods 0.000 claims description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- 235000014676 Phragmites communis Nutrition 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 229910000976 Electrical steel Inorganic materials 0.000 description 15
- 239000004696 Poly ether ether ketone Substances 0.000 description 14
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- 239000000463 material Substances 0.000 description 14
- 229920002530 polyetherether ketone Polymers 0.000 description 14
- 230000001050 lubricating effect Effects 0.000 description 10
- 238000000034 method Methods 0.000 description 6
- 238000005057 refrigeration Methods 0.000 description 5
- 210000003205 muscle Anatomy 0.000 description 4
- 239000000696 magnetic material Substances 0.000 description 3
- 230000029058 respiratory gaseous exchange Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 210000003298 dental enamel Anatomy 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 210000004243 sweat Anatomy 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- 206010019345 Heat stroke Diseases 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
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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
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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
- F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
- F04B27/005—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders with two cylinders
-
- 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
-
- 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
- F04B39/02—Lubrication
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The present invention relates to a kind of double cylinder opposed type oil-free linear compressor, including holder one, two linear motor assemblies, air-breathing mover assembly, non-air-breathing mover assembly, two groups of flat springs, air bleeding valve, exhaust sealing component and shell etc..Holder is integrally comprising two cylinders and multiple holders to fix fixing flat spring assembly.Two linear motors are symmetrically distributed in holder one both sides.The compression process of compressor is working media by air intake passage, into inside compressor.Drive piston reciprocating by linear motor, working media enters compression chamber by the hollow channel of air-breathing mover assembly, when pressure rise heel row air valve opening, enters exhaust casing by gas vent, is discharged by the through-hole of exhaust end cover.The oil-free linear compressor of the present invention uses the opposed structure of twin-tub, so that the lateral force that moving component generates is reduced, reduces vibration and the noise of compressor, increase volume flow, piston diameter is made to reduce, be conducive to the micromation of linear compressor.
Description
Technical field
The present invention relates to a kind of double cylinder opposed type oil-free linear compressors, more particularly to one kind being used for mini air conditioner or refrigerator
Equal refrigeration equipments have valve linear compressor, the linear compressor being supported especially with flat spring.
Background technology
Conventional rotors formula compressor or piston compressor drive rotor or piston to complete compressed using electric rotating machine
Journey.But rotor-type compressor and piston compressor need oil lubrication, and piston compressor is due to toggle
Presence, frictional force is larger, keeps its mechanical efficiency relatively low.In the refrigerating plant of small cold, it is necessary to develop a kind of novel
Refrigeration compressor, to meet, the compact-sized of Small Refrigerating Equipment, light weight, small, at low cost, vibration is low, reliability is high
Requirement.
Linear compressor is the compressor driven using Linear Synchronous vibration motor.Linear motor includes inside and outside yoke, line
Circle and permanent magnet etc..Linear motor can utilize the resonance principle of its electromagnetic force and spring force, generate high-frequency reciprocating linear motion,
Mover movement can be pushed directly on.Moving-magnetic type linear motor obtains more and more attention due to compact-sized, efficient.Dynamic magnetic
Formula linear motor rotor part includes permanent magnet, permanent magnetism body support frame, piston and connector etc..After coil is passed through alternating current, forever
The power that magnet is moved back and forth, and carry out reciprocating compression movement with piston.For linear compressor since friction point is few, structure is tight
It gathers, it is more efficient without toggle.
Since there is hot weather in the multiple cities in the summer whole nation, the staff for being engaged in special industry such as traffic police, welding
Worker, powder spray worker, steel worker etc., work in the environment of such high temperature, and human body will generate a large amount of sweat.If
Air humidity is higher, and the sweat of human body accumulates in skin surface, and worker can feel very hot, and working efficiency can also substantially reduce,
It is serious it is possible that heatstroke or heat stress.In consideration of it, being developed a variety of air-ventilating garments for body temperature lowering, steaming is used
Air pressure compressing refrigeration system can meet the needs of human body is to cold.Cold water is generated using vapor compression refrigeration system, and makes cold water
It is recycled in water pipe in the vest that freezes, the heat of human body generation can be taken away.But this vapor compression refrigeration system of exploitation needs
Meet work man-hour to jolt greatly, refrigerating plant is light-weight, portable, and demand is big instead for refrigerating capacity when operating ambient temperature is high
Requirement, the rotor-type compressor of existing application is due to the use of oil lubrication, when human body carries out jolting mobile, compressor will generate
Larger inclination angle can make overheat of compressor and be stopped, greatly reduce the availability of body air conditioner.
Invention content
In view of this, it is an object of the invention to overcome problems of the prior art, a kind of double cylinder opposed type is provided
Oil-free linear compressor, is supported using flat spring, and two linear motors is arranged, opposed pistons is driven to move back and forth.
In order to achieve the above object, the technical solution adopted by the present invention is：A kind of double cylinder opposed type oil-free linear compressor,
Holder one including two cylinders, two linear motor assemblies, air-breathing mover assembly, non-air-breathing mover assembly, two groups of plate bullets
Spring component, inlet valve, air bleeding valve, exhaust sealing component and shell etc..
The linear compressor of the present invention includes left and right two linear motor assemblies and identical.Linear motor assembly is by interior
Yoke, outer yoke, coil, coil rack and outer yoke pressing plate composition.The outer yoke of linear motor uses silicon steel sheet or soft magnetism material
Material.When using silicon steel material, multi-disc silicon steel sheet stack is pressed into silicon steel sheet group, then circularizes the assembly of multiple silicon steel sheet groups
Outer yoke.Coil is placed between outer yoke, coil uses multiturn enamel covered wire, is first wound on coil rack, so
The silicon steel sheet group of outer yoke is snapped on coil rack afterwards, and the two is made to be in close contact, in order to avoid coil is caused to loosen.Use outer yoke
Outer yoke is fixed in holder one by iron pressing plate and screw, to prevent outer yoke and coil position from moving.Interior yoke can make
With silicon steel sheet or soft magnetic materials.When using silicon steel material, assembled in cylinder outer circumference, and closely connect with cylinder
It touches, carrying out gluing using the tail portion protrusion being arranged on the outside of cylinder fixes.When coil is passed through alternating current, produced by coil energizing current
The magnetic field interaction in raw magnetic field and permanent magnet makes permanent magnet generate the axial force moved back and forth.Due to permanent magnet and mover
Part connects, and permanent magnet will be reciprocating with piston, and the electric current of two lateral coils is passed through by control, makes piston simultaneously in
The heart moves, to the working media in compression cylinder.
Air-breathing mover assembly includes piston, inlet valve, PEEK lubricating sleeves, permanent magnet, permanent magnetism body support frame, fan annular groove, connection
Part and screw.Permanent magnet is fixed with permanent magnetism body support frame using gluing, and internal diameter is identical both after the completion of fixing.Permanent magnetism body support frame it is interior
Diameter is more than the interior yoke outer diameter assembled, and the outer diameter of permanent magnetism body support frame is less than the internal diameter of coil rack, is formed between any two small
Air gap.In order to increase the efficiency of linear motor, air gap all very littles.Piston and permanent magnetism body support frame are fixed together by connector.Its
Middle connector side and piston tail, which use, to be threadedly coupled, and therebetween by permanent magnet stent clamping.The connector other side
External screw thread is set, is connected mover assembly and support flat spring using hex nut.
The piston and connector of air-breathing mover assembly use hollow part, and hollow channel is as air intake passage.Piston head
Portion is arranged three muscle and connects head centers and piston peripheral edge portion, and the fan annular groove formed by muscle is as air intake passage, by working
Medium opens ring plate suction valve chip to the active force of suction valve chip, into compression chamber, completes breathing process.Ring plate suction valve chip makes
It is screwed in top land.
Air-breathing mover assembly does not include piston, PEEK lubricating sleeves, permanent magnet, permanent magnetism body support frame, connector and screw slots.No
Difference lies in not air-breathing mover assembly heads not to fan annular groove inlet channel, air-breathing with air-breathing mover assembly for air-breathing mover assembly
Valve and screw, other connection types are identical.In order to effectively reduce dead volume, ratio is not arranged in the top land of air-breathing mover assembly
The big groove of head of screw on air-breathing mover assembly.Two mover assembly piston exteriors are using PEEK lubricating sleeves to reduce piston
With the friction of cylinder.In order to be effectively discharged out working media in exhaust process, one piece of fan ring is set on PEEK lubricating sleeves head
Connected in star, so that the high-pressure working medium in the slight compression chamber that two pistons are formed before near miss passes through the groove
Flow to gas vent.
Holder includes integrally two cylinders, holder, air intake passage, air-breathing diffusion hole, gas vent, exhaust casing and tail cylinder
Protrusion etc..Holder includes integrally multiple holders, to fix fixing flat spring assembly.In order to reach the mesh for stablizing fixed flat spring outer rim
, number of holders can be 4 or 6 unilateral, and circumferentially be uniformly distributed.Gas vent is arranged in holder one centre,
And it is communicated with cylinder compression chamber.Reed air bleeding valve is set on the outside of gas vent, the aperture of air bleeding valve is limited using lift limiter.Make
Air bleeding valve and lift limiter are fixed in holder one with screw.Exhaust sealing group is set outside the exhaust casing of holder one
Part comprising seal washer and exhaust end cover.Through-hole is arranged on exhaust end cover to be exhausted with connecting pipe.Compressor case packet
Two cylindrical shells in left and right are included, and are connected the two using welding, make entire compressor seal.
Fixing flat spring assembly includes at least 1 flat spring, and when using multi-disc flat spring, plain cushion is used between flat spring center
Circle separates flat spring, and the same arranging plate spring shim of flat spring outer rim separates.Flat spring outer rim uses screw by plate spring groups
Part is fixed on holder integrally outwardly directed holder.Outer rim is formd to fix, and the deformable support plate spring groups in center
Part.
The compression process of linear compressor is that working media enters air-breathing diffusion hole by air intake passage, and working media is made to fill
Inside full entire compressor, linear motor is cooled down using compressor air suction.Under the action of two linear motors, when flat spring branch
When two piston components of support move outward, the compression chamber pressure reduction between piston, when less than pressure of inspiration(Pi) certain value,
Inlet valve is opened, and breathing process is completed.When piston inwardly moves simultaneously, the pressure rise of compression chamber, when pressure is higher than exhaust
When valve lateral pressure certain value, air bleeding valve is opened, and enters exhaust casing by gas vent by compressed working media, finally work Jie
Matter flows out compressor case by the through-hole on exhaust end cover.
The double cylinder opposed type oil-free linear compressor of the present invention increases volume flow using the opposed compression of twin-tub, can be with
Piston diameter is set to reduce, to make the outer diameter smaller of entire compressor.It is compressed due to the use of opposed type, moving component can be reduced
The lateral force of generation reduces vibration and the noise of compressor.Using unilateral piston air-breathing, air-breathing and phase is not arranged in another side piston
Groove, and setting fan annular groove on the PEEK lubricating sleeves of both sides are answered, the dead volume of compresser cylinder is efficiently reduced.Use plate
Spring supporting increases effectively the radial rigidity and axial rigidity of compressor.By between flat spring support and piston and cylinder
Clearance seal, reduce compression chamber and leaked to back pressure cavity by working media between piston and cylinder.It is lubricated using PEEK
Material can reduce the friction between piston and cylinder, due to the self-lubricating property of PEEK materials, make compressor that can be transported with oil-free
Row increases reliability when piston motion, increases the service life of compressor, compressor is made to can apply to more moving fields
It closes.
Description of the drawings
Fig. 1 is a kind of sectional view of double cylinder opposed type oil-free linear compressor embodiment of the present invention.
Fig. 2 is a kind of graphics of double cylinder opposed type oil-free linear compressor embodiment of the present invention.
Fig. 3 is a kind of sectional view of double cylinder opposed type oil-free linear compressor embodiment air-breathing mover assembly of the present invention.
Fig. 4 is a kind of sectional view of double cylinder opposed type oil-free linear compressor embodiment of the present invention not air-breathing mover assembly.
Fig. 5 is a kind of sectional view at double cylinder opposed type oil-free linear compressor embodiment of the invention center.
Specific implementation mode
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail, but the present embodiment is not limited to
The present invention, it is all using structure of the invention and its similar variation, it is within the scope of protection of the invention.
A kind of double cylinder opposed type oil-free linear compressor, as shown in Figure 1 and Figure 2, including the holder one 11 of two cylinders,
Two linear motor assemblies 30, air-breathing mover assembly 10, not 20, two groups of fixing flat spring assemblies 12, inlet valves of air-breathing mover assembly
105, air bleeding valve 152, exhaust sealing component 16, left side shell 17 and right side shell 18 etc..
The linear compressor of the present invention includes left and right two linear motor assemblies 30 and identical.Linear motor assembly 30
It is made of interior yoke 304, outer yoke 301, coil 302, coil rack 303, outer yoke pressing plate 305 and screw 306.Linear motor
Outer yoke 301 use silicon steel sheet or soft magnetic materials.When using silicon steel material, multi-disc silicon steel sheet stack is pressed into silicon steel sheet
Then multiple silicon steel sheet groups are assembled the outer yoke 301 circularized by group.Coil 302, coil 302 are placed between outer yoke 301
Using multiturn enamel covered wire, first it is wound on the coil rack 303 that material is ABS plastic, then by the silicon of outer yoke 301
Steel disc group snaps on coil rack 303, and the two is made to be in close contact, in order to avoid coil 302 is caused to loosen.Use outer yoke pressing plate
305 and screw 306 outer yoke 301 is fixed in holder one 11, to prevent outer yoke 301 and 302 position of coil from moving.It is interior
Yoke 304 can use silicon steel sheet or soft magnetic materials.When using silicon steel material, assembled in 112 outer circumference of cylinder
On, and be in close contact with cylinder 112, the tail portion protrusion 113 being arranged using 112 outside of cylinder is carried out gluing and fixed.When coil 302
When being passed through alternating current, by exciting current generate magnetic field and permanent magnet 102,202 magnetic field interaction, make permanent magnet 102,
202 generate the axial force moved back and forth.Since permanent magnet 102,202 is connect with subpart, permanent magnet 102,202 will drive and live
Plug assembly 10,20 is reciprocating, and the electric current of two lateral coils 302 is passed through by control, makes piston component 10,20 simultaneously to center
It is mobile, to the working media in compression cylinder 112.
As shown in figure 3, air-breathing mover assembly 10 includes piston 103, inlet valve 105, PEEK lubricating sleeves 104, permanent magnet
102, permanent magnetism body support frame 101, connector 108, fan annular groove 107, fan annular groove 109 and screw 106.Piston 103 is closed using aluminium
Golden material.Permanent magnet 102 is fixed with permanent magnetism body support frame 101 using gluing, and internal diameter is identical both after the completion of fixing.Permanent magnetism body support frame
101 internal diameter is more than 304 outer diameter of interior yoke assembled, and the outer diameter of permanent magnetism body support frame 101 is less than the internal diameter of coil rack 303,
Slight air gap is formed between any two.In order to increase the efficiency of linear motor, air gap all very littles.Permanent magnetism body support frame 101 is closed using aluminium
Golden material.Piston 103 and permanent magnetism body support frame 101 are fixed together by connector 108.Wherein 108 side of connector and piston 103
Tail portion is clamped therebetween using threaded connection, and by permanent magnetism body support frame 101.External screw thread is arranged in 108 other side of connector, makes
Mover assembly 10 and support fixing flat spring assembly 12 are connected with hex nut 125.
The piston 103 and connector 108 of air-breathing mover assembly 10 use hollow part, hollow channel logical as air-breathing
Road.103 head of piston is arranged three muscle and connects head center and peripheral edge portion, and is used as air-breathing by the fan annular groove 107 that muscle is formed
Channel opens ring plate suction valve chip 105 to the active force of suction valve chip 105 by working media, into compression chamber 14, completes air-breathing
Process.Ring plate suction valve chip 105 is fixed on 103 top of piston using screw 106.
As shown in figure 4, air-breathing mover assembly 20 does not include piston 203, PEEK lubricating sleeves 204, permanent magnet 202, permanent magnet
Holder 201, connector 206, fan annular groove 207 and screw slots 205.Piston 203 uses aluminum alloy materials.Not air-breathing mover group
Difference lies in not 20 heads of air-breathing mover assembly not to fan 107 inlet channel of annular groove, air-breathing with air-breathing mover assembly 10 for part 20
Valve 105 and screw 106, other connection types are identical.In order to effectively reduce dead volume, the not piston of air-breathing mover assembly 20
The groove 205 bigger than 106, screw on air-breathing mover assembly 10 is arranged in 203 heads.Outside two mover assembly pistons 103,203
Portion is using PEEK lubricating sleeves 104,204 to reduce the friction of piston 103,203 and cylinder 112.In order to have in exhaust process
One piece of fan annular groove 109,207 is arranged on PEEK lubricating sleeves 104,204 heads, so that two work in discharge working media in effect ground
High-pressure working medium in the slight compression chamber that plug 103,203 is formed before near miss passes through the groove and flows to gas vent
151。
As shown in figure 5, holder one 11 includes two cylinders 112, holder 111, air intake passage 114, air-breathing diffusion hole
115, gas vent 151, exhaust casing 15 and tail cylinder protrusion 113 etc..Holder one 11 uses aluminum alloy materials, and it includes multiple
Holder 111, to fix fixing flat spring assembly 12.In order to achieve the purpose that stablize 121 outer rim of fixed flat spring, 111 quantity of holder can
To be 4 or 6 unilateral, and circumferentially it is uniformly distributed.The setting of gas vent 151 is in holder integrally 11 centres, and and cylinder
Compression chamber 14 communicates.151 outside setting reed air bleeding valve 152 of gas vent, air bleeding valve 152 is limited using lift limiter 153
Aperture.Air bleeding valve 152 and lift limiter 153 are fixed in holder one 11 using screw 154.The exhaust of holder one 11
15 outside setting exhaust sealing component 16 of cylinder comprising seal washer 162 and exhaust end cover 161.Seal washer 162 uses poly- four
Fluoride material.Through-hole is arranged on exhaust end cover 161 to be exhausted with connecting pipe.Compressor case includes two cylinders in left and right
Body case 17,18, and connected the two using welding, make entire compressor seal.
Fixing flat spring assembly 12 includes at least 1 flat spring 121.When using multi-disc flat spring 121,121 center of flat spring
Between flat spring 121 is separated using plain washer 122, the same arranging plate spring shim 123 of 121 outer rim of flat spring separates.Plate bullet
Fixing flat spring assembly 12 is fixed on holder 11 outwardly directed holders 111 of one by 121 outer rim of spring using screw 124.Formed
Outer rim is fixed, and support fixing flat spring assembly 12 that center can deform upon.
The compression process of linear compressor is that working media enters air-breathing diffusion hole 115 by air intake passage 114, makes work
Medium cools down linear motor full of inside entire compressor using compressor air suction.In the effect of two linear motor assemblies 30
Under, when two piston components 10,20 that fixing flat spring assembly 12 supports move outward, the compression chamber between piston 103,203
14 pressure reductions, when less than pressure of inspiration(Pi) certain value, inlet valve 105 is opened, and completes breathing process.When piston 103,203 to
When inside moves simultaneously, the pressure rise of compression chamber 14, when pressure is higher than 152 lateral pressure certain value of air bleeding valve, air bleeding valve 152
It opens, exhaust casing 15 is entered by gas vent 151 by compressed working media, last working media passes through exhaust end cover 161
On through-hole flow out compressor case 17,18.
The double cylinder opposed type oil-free linear compressor of the present invention increases volume flow using the opposed compression of twin-tub, can be with
Piston diameter is set to reduce, to make the outer diameter smaller of entire compressor.It is compressed due to the use of opposed type, moving component can be reduced
The lateral force of generation reduces vibration and the noise of compressor.Using unilateral piston air-breathing, air-breathing and phase is not arranged in another side piston
Groove, and setting fan annular groove on the PEEK lubricating sleeves of both sides are answered, the dead volume of compresser cylinder is efficiently reduced.Use plate
Spring supporting increases effectively the radial rigidity and axial rigidity of compressor.By between flat spring support and piston and cylinder
Clearance seal, reduce compression chamber and leaked to back pressure cavity by working media between piston and cylinder.It is lubricated using PEEK
Material can reduce the friction between piston and cylinder, due to the self-lubricating property of PEEK materials, make compressor that can be transported with oil-free
Row increases reliability when piston motion, increases the service life of compressor, compressor is made to can apply to more moving fields
It closes.
Claims (10)
1. a kind of double cylinder opposed type oil-free linear compressor, including holder one, two linear motor assemblies, air-breathing mover group
Part, non-air-breathing mover assembly, two groups of fixing flat spring assemblies, inlet valve, air bleeding valve, exhaust sealing component and shell etc..
The holder is integrally comprising two cylinders, multiple holders, air intake passage, gas vent and exhaust casing etc..The holder is to two
Side is stretched out and is used to fix the fixing flat spring assembly.The linear motor is symmetrically distributed in holder one both sides.
The compression process of the linear compressor is that working media enters air-breathing diffusion hole by air intake passage, and working media is made to fill
Inside full entire compressor, linear motor is cooled down using compressor air suction.Opposed pistons is driven to make by two linear motors past
Multiple movement, working media enters compression chamber by the hollow channel of air-breathing mover assembly, after compression chamber pressure rise, air bleeding valve
It opens, by entering exhaust casing in holder one center and the gas vent that is communicated with compression chamber, finally passes through exhaust sealing
Compressor case is discharged in the through-hole of component.
2. linear compressor according to claim 1, it is characterised in that：The linear motor assembly is by interior yoke, outer yoke
Iron, coil, coil rack and outer yoke pressing plate composition.
3. linear motor assembly according to claim 2, it is characterised in that：The outer yoke uses outer yoke pressing plate and spiral shell
Nail is fixed in holder one, to prevent outer yoke and coil position from moving.
4. linear motor assembly according to claim 2, it is characterised in that：The interior yoke is assemblied in cylinder outer circumference
On, and be in close contact with cylinder, carrying out gluing using the tail portion protrusion being arranged on the outside of cylinder fixes.
5. the air-breathing mover assembly of linear compressor according to claim 1, it is characterised in that：The permanent magnet and permanent magnet
Holder is fixed using gluing, and internal diameter is identical both after the completion of fixing.The internal diameter of permanent magnetism body support frame is more than outside the interior yoke assembled
Diameter, the outer diameter of permanent magnetism body support frame are less than the internal diameter of coil rack, form slight air gap between any two.
6. the air-breathing mover assembly of linear compressor according to claim 1, it is characterised in that：The connector by piston and
Permanent magnetism body support frame is fixed together.Connector side and piston tail, which use, to be threadedly coupled, and by permanent magnet stent clamping two
Between person.External screw thread is arranged in the connector other side, is connected mover assembly and support flat spring using hex nut.
7. the holder one of linear compressor according to claim 1, it is characterised in that：Stablize fixed flat spring to reach
The purpose of outer rim, number of holders can be 4 or 6 unilateral, and circumferentially be uniformly distributed.
8. the holder one of linear compressor according to claim 1, it is characterised in that：Reed is set on the outside of the gas vent
Air bleeding valve limits the aperture of air bleeding valve using lift limiter.Air bleeding valve and lift limiter are fixed to holder using screw
In one.
9. the exhaust sealing component of linear compressor according to claim 1, it is characterised in that：The exhaust sealing component is set
It sets outside the exhaust casing of holder one, including seal washer and exhaust end cover.Through-hole is set on exhaust end cover with connecting pipe
It is exhausted.
10. the fixing flat spring assembly of linear compressor according to claim 1, it is characterised in that：The fixing flat spring assembly includes
At least 1 flat spring is separated flat spring using plain washer between flat spring center, flat spring when using multi-disc flat spring
The same arranging plate spring shim of outer rim separates.Fixing flat spring assembly is fixed to holder integrally to overhanging by flat spring outer rim using screw
On the holder gone out.Outer rim is formed to fix, and the deformable support fixing flat spring assembly in center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810546393.4A CN108757381A (en) | 2018-05-31 | 2018-05-31 | A kind of double cylinder opposed type oil-free linear compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810546393.4A CN108757381A (en) | 2018-05-31 | 2018-05-31 | A kind of double cylinder opposed type oil-free linear compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
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| CN111102155A (en) * | 2020-02-28 | 2020-05-05 | 辽宁工程技术大学 | Reciprocating linear double-cylinder hydraulic pump |
| CN111486081A (en) * | 2020-04-22 | 2020-08-04 | 辽宁工程技术大学 | Linear compressor piston bearing structure |
| CN111561437A (en) * | 2020-04-03 | 2020-08-21 | 北京空间飞行器总体设计部 | Oil-free linear compressor for heat pump system |
| CN112555123A (en) * | 2020-12-10 | 2021-03-26 | 武汉高芯科技有限公司 | Linear compressor capable of maintaining balance position of piston unchanged |
| CN113309682A (en) * | 2021-04-28 | 2021-08-27 | 武汉高芯科技有限公司 | High-reliability miniature lightweight linear compressor |
| CN113494783A (en) * | 2020-03-19 | 2021-10-12 | 上海凌谛制冷技术有限公司 | Pressure wave generating device for cryogenic refrigerator and assembling method thereof |
| CN114562439A (en) * | 2022-02-28 | 2022-05-31 | 武汉高芯科技有限公司 | High-pressure ratio linear compressor with stepped piston |
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| CN113309682A (en) * | 2021-04-28 | 2021-08-27 | 武汉高芯科技有限公司 | High-reliability miniature lightweight linear compressor |
| CN113309682B (en) * | 2021-04-28 | 2022-11-04 | 武汉高芯科技有限公司 | High-reliability miniature lightweight linear compressor |
| CN114562439A (en) * | 2022-02-28 | 2022-05-31 | 武汉高芯科技有限公司 | High-pressure ratio linear compressor with stepped piston |
| CN114562439B (en) * | 2022-02-28 | 2024-05-17 | 武汉高芯科技有限公司 | High-pressure ratio linear compressor with stepped piston |
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Address after: 201800 No. 655, Zhao Xian Road, Jiading District, Shanghai. Applicant after: Shanghai langdan Technology Group Co., Ltd Address before: 201800 No. 655, Zhao Xian Road, Jiading District, Shanghai. Applicant before: SHANGHAI LANGDAN REFRIGERATION TECHNOLOGY Co.,Ltd. |