CN109931243A - The piston component and linear compressor of linear compressor - Google Patents
The piston component and linear compressor of linear compressor Download PDFInfo
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- CN109931243A CN109931243A CN201711353992.6A CN201711353992A CN109931243A CN 109931243 A CN109931243 A CN 109931243A CN 201711353992 A CN201711353992 A CN 201711353992A CN 109931243 A CN109931243 A CN 109931243A
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- piston
- linear compressor
- elastic element
- piston rod
- piston component
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Abstract
The present invention provides a kind of piston component of linear compressor and linear compressors.The piston component has the piston rod, the piston head being connected with the piston rod, limit of inner hollow in the fixing piece of the elastic element of the piston rod inner, the stop mechanism of the limit elastic element and the fixed piston head and piston rod, the elastic element is by spring wire winding helically structure, the spring wire has axial width and radial width along itself spiral winding set direction, and the axial width is greater than the radial width.So set, the radially power of the elastic element is smaller, and very big power can be born in axial direction, to realize that axial upper piston head does not fall off because of inertia force, radially meeting 1/10 axial force can rotate.
Description
Technical field
The present invention relates to the compressions of the piston component and straight line of Compressor Technology field more particularly to a kind of linear compressor
Machine.
Background technique
Important component of the compressor as refrigeration system, the general structure being connect with piston with piston rod, due to
Connecting portion needs to lubricate, so being easy to appear oil suction phenomenon when using oil lubrication.I.e. in compressor air suction process
In, lubricating oil enters in discharge chamber from the contact site of piston and mover bar, and the refrigerator other than compressor is entered along discharge chamber
In system, the refrigerating capacity of refrigerator system is caused to decline, meanwhile, excessive lubricating oil can not be returned normally after being discharged to refrigerator system
Into compressor, leading to piston, there is a phenomenon where card cylinders due to can not lubricate.Such as the Chinese invention disclosed on May 20th, 2015
A kind of piston positioning means of Linearkompressor, the piston include piston head and inner hollow disclosed in CN104632578
Piston rod, the piston head and piston rod, which pass through elastic parts and constitute, to be flexibly connected.The piston rod inner setting is flexible
Part, annular groove is provided on the inner wall of the piston rod, and the elastic component is arranged in annular groove.It is worn on the piston head
Equipped with fixing piece, the fixing piece and elasticity are shown in cooperation.The elastic component is the flat spring for being provided with centre bore.Such as in 2005
A kind of linear compressor disclosed in Chinese invention CN1585857 disclosed in 23 days 2 months, the linear compressor are compressed with piston
There is cylinder body and piston and helical spring, the helical spring can move freely ground in contour direction for mechanism, the compression mechanism
Support above-mentioned piston.Above-mentioned piston generallys use the mode that line is connect or face connects with piston rod, but preferable in order to reach
Sealing effect, the fastening force connected between one side piston rod and piston head is very big, on the other hand to the processing of metal covering
Level requirement is higher, but at present, and when fastening force is very big, required flexible effect is difficult to table to piston during exercise
It is existing, so biggish power is needed in the movement direction, and radially just can not free variation.
Therefore, it is necessary to which the piston component and linear compressor that provide a kind of improved linear compressor are to solve above-mentioned ask
Topic.
Summary of the invention
The purpose of the present invention is to provide the piston components and linear compressor of a kind of linear compressor for avoiding card cylinder.
For achieving the above object, the present invention provides a kind of piston component of linear compressor, the piston components
Piston rod with inner hollow, the piston head being connected with the piston rod, limit the piston rod inner elastic element,
The stop mechanism of the elastic element and the fixing piece of the fixed piston head and piston rod are limited, the elastic element is by spring
Filament winding sets helically structure, and the spring wire has axial width and radial width, the axial direction along itself spiral winding set direction
Thickness is greater than the radial width.
As a further improvement of the present invention, the axial width and the ratio of the radial width are between 3 to 10.
As a further improvement of the present invention, the fixing piece includes being fed through the bolt of piston head and being located at bolt one end
Fixture nut, the stop mechanism includes the stop tab being set on bolt and the stopper section that the bolt other end is arranged in, institute
State stop tab and the stopper section elastic element described in the upper limit of piston motion direction.
As a further improvement of the present invention, the stop tab have enable the bolt pass through central hole, it is described in
The aperture of heart perforation is less than the outer peripheral diameter of the nut.
As a further improvement of the present invention, the stop tab be circular ring shape flake structure and have be distributed in circular ring structure
On several through-holes.
As a further improvement of the present invention, the stopper section and the piston rod are integrally formed, and the stopper section is
The annular wall extended from the piston rod ora terminalis, described elastic element one end are limited by the annular wall.
As a further improvement of the present invention, the stopper section is the circlip with the piston rod split settings, the bullet
Property element one end limited by the circlip, the piston rod inner wall is equipped with annular groove, and the circlip is placed and secured in institute
It states in annular groove.
As a further improvement of the present invention, there is the helicitic texture to fixing bolt inside the piston head.
For achieving the above object, including shell and the ontology of the interior of shell is arranged in a kind of linear compressor
Structure, the body construction include cylinder, mover assembly, stator module and piston component, compression chamber of the piston in cylinder
Interior reciprocating motion.
As a further improvement of the present invention, after the piston rod and the mover assembly are integrally formed or are separately formed again
It is connected with each other.
The beneficial effects of the present invention are: elastic element is arranged in linear compressor of the present invention between piston head and piston rod,
The elastic element by spring wire winding helically structure, the spring wire along itself spiral winding set direction have axial width and
Radial width, the axial width are greater than the radial width, and the radially power of the elastic element is smaller, and it is axial on can be with
Very big power is born, to realize that axial upper piston head does not fall off because of inertia force, the axial force for radially meeting 1/10 can be with
Rotation.
Detailed description of the invention
Fig. 1 is the cross-sectional view of linear compressor of the present invention.
Fig. 2 is the front view of the elastic element of linear compressor of the present invention.
Fig. 3 is the left view of the elastic element of linear compressor of the present invention.
Fig. 4 is the partial schematic diagram of the piston component first embodiment of linear compressor of the present invention.
Fig. 5 is the partial schematic diagram of the piston component second embodiment of linear compressor of the present invention.
Fig. 6 is the front view of the stop tab of linear compressor of the present invention.
Fig. 7 is the partial schematic diagram of the piston component third embodiment of linear compressor of the present invention.
Specific embodiment
Below with reference to embodiment shown in the drawings, the present invention will be described in detail.But these embodiments are not intended to limit this
Invention, the transformation in structure or function that those skilled in the art are made according to these embodiments are all contained in this hair
In bright protection scope.
Shown in referring to Figure 1 to Figure 7, linear compressor 100 of the present invention is applied in the refrigeration system of refrigeration equipment.
Shown in referring to Figure 1 to Figure 7, the linear compressor 100 has piston component 1.The piston component 1 has inside
The elastic element of hollow piston rod 11, the piston head 12 being connected with the piston rod 11, limit inside the piston rod 11
13, the stop mechanism 14 of the elastic element 13 and the fixing piece 15 of the fixed piston rod 11 and piston head 12 are limited.It is described
Elastic element 13 by spring wire winding helically structure, the spring wire along itself spiral winding set direction have axial width d and
Radial width h, the axial width d are greater than the radial width h.The i.e. described elastic element 13 is flat type spring structure.
In the application preferred embodiment, the ratio of the axial width d of the spring wire and the radial width h exist
Between 3 to 10.The ratio of the axial width d and radial width h within this range, meets piston to realize in axial direction
Head is not fallen off under inertia force influence, meets the 1/10 rotatable optimal design of axial force radially.
Refering to shown in Fig. 4 to Fig. 7, the fixing piece 15 includes being fed through the bolt 151 of piston head 12 and being located at bolt 151
The fixture nut 152 of one end.The stop mechanism 14 includes the stop tab 141 being set on bolt 151 and is arranged in bolt 151
The stopper section 142 of the other end.The stop tab 141 and stopper section 142 member of the elasticity described in 1 direction of motion upper limit of piston component
Part 13.
Refering to shown in Fig. 4 and Fig. 6, the stop tab 141 has the central hole 143 for enabling the bolt 151 pass through, described
The aperture of central hole 143 be less than the nut 152 outer peripheral diameter so that 141 side of the stop tab be limited without
It is slid from 151 side of bolt.The stop tab 141 is for circular ring shape flake structure and several logical on circular ring structure with being distributed in
Hole 144, the through-hole 144 is to enable refrigerant gas pass through, to guarantee that air-breathing is unobstructed.
It is described in the first embodiment of the piston component 1 of linear compressor 100 of the present invention refering to shown in Fig. 4 and Fig. 7
Stopper section 142 and the piston rod 11 are integrally formed, and the stopper section 142 is the ring extended from 11 ora terminalis of piston rod
Shape wall, described 13 one end of elastic element are limited by the annular wall, and the other end is limited by the stop tab 141.In this embodiment party
In formula, the bolt 151 passes through and fixes the piston head 12, is then passed through elastic element 13 and stop tab 141, finally has spiral shell
The fixed bolt of the rotation of nut 152 of line structure, the piston rod 11 and piston head 12 are connected and fixed.
As shown in fig.5, in the second embodiment of the piston component 1 of linear compressor 100 of the present invention, the stopper section
142 be the circlip with 11 split settings of piston rod, and described 13 one end of elastic element is limited by the circlip, and the other end is by institute
State the limit of stop tab 141.11 inner wall of piston rod is equipped with annular groove 110, and the circlip is placed and secured in the ring
In connected in star 110, it is unlikely to deviate from piston rod 11 with the fixation circlip.
As shown in fig.5, in the third embodiment of the piston component 1 of linear compressor 100 of the present invention, the piston head
The helicitic texture to fixing bolt is provided on 12.In the present embodiment, the bolt 151 passes through the spiral shell on piston head 12
Line structure passes through and fixes the piston head 12, is then passed through elastic element 13 and stop tab 141, finally with the spiral shell of helicitic texture
The fixed bolt of 152 rotation of mother, the piston rod 11 and piston head 12 are connected and fixed.
In order to reduce magnetic loss caused by piston, the piston rod 11 is made of non-magnetic or non-conducting material, works as piston
When bar 11 is using non-magnetic non-conducting material, caused magnetic loss is substantially zeroed, and the efficiency of the linear compressor 100 is more
It is high.Wherein non-magnet material can be epoxy resin glass, PPS (polyphenylene sulfide), PEEK (polyethers ether copper) plastics or aluminium alloy；
Non-magnetic non-conducting material can be epoxy resin glass, PPS or PEEK plastics.
The body construction that the linear compressor usually has shell 2 and is arranged in inside the shell 2.The bulk junction
Structure includes that cylindrical circular external stator 3 and inner stator 4, setting are formed by both the external stator 3 and the inner stator 4
Mover assembly 5 in interval.The external stator 3 forms stator module with the inner stator 4.Wherein, the inner stator 4 is in outer
In stator 3 and the two axially retains consistent.The mover assembly 5 include be located at the external stator 3 and the inner stator 4 this two
Person is formed by the magnet 51 in interval and the composition of the mover skeleton 52 to fix the magnet 51.In the right end of inner stator 4
Equipped with cylindrical circular cylinder 6, the fixed cylinder 6 in forward flange 7 and the exhaust valve plate being sealed to cylinder 6.The gas
Cylinder 6 and inner stator 4 keep being coaxially disposed.The piston component 1 is arranged in the cylinder 6 and past in the compression chamber of cylinder 6
Multiple movement.One compression chamber is surrounded by the piston component 1, cylinder 6 and exhaust valve plate jointly.The application preferred embodiment
In, piston rod 11 and mover skeleton 52 are integrally formed, and in other embodiments, the piston rod and the mover skeleton also may be used
It is connected to together after being separately formed.The fixed restricted mover assembly 5 in left end in the shell 2 in inner stator 4 continue to
Spring bearer plate 8 and the setting flexible supporting element 9 between the spring bearer plate 8 and mover skeleton 52 of left side movement.Default
Coil 41 is equipped in son 4, when coil 41 is powered, the magnetic field strength in the magnetic field that inner stator 4 and external stator 3 are formed and direction occur
Variation, under the action of a magnetic force, mover assembly 5 is moved back and forth along its axial direction, and the mover assembly 5 drives 1 edge of piston component
The axial direction of cylinder 6 moves back and forth, to compressed to the refrigerant gas in compression chamber by piston component 1 to realize system
It is cold.The piston component 1 connects into an entirety, in compressor operation, the movement of the two with the mover assembly 5
Direction is consistent and need to carry out high-frequency reciprocating movement.
The series of detailed descriptions listed above are illustrated only for possible embodiments of the invention,
The protection scope that they are not intended to limit the invention, it is all without departing from equivalent embodiment made by technical spirit of the present invention or change
It should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of piston component of linear compressor, it is characterised in that: the piston component have inner hollow piston rod, with
The connected piston head of the piston rod, limit are in the elastic element of the piston rod inner, the backstop of the limit elastic element
The fixing piece of mechanism and the fixed piston head and piston rod, the elastic element are described by spring wire winding helically structure
Spring wire has axial width and radial width along itself spiral winding set direction, and the axial width is greater than the radial width.
2. the piston component of linear compressor according to claim 1, it is characterised in that: the axial width and the diameter
To width ratio between 3 to 10.
3. the piston component of linear compressor according to claim 1, it is characterised in that: the fixing piece includes being fed through
The bolt of piston head and the fixture nut for being located at bolt one end, the stop mechanism include the stop tab being set on bolt and set
It sets in the stopper section of the bolt other end, the stop tab and the stopper section elastic element described in the upper limit of piston motion direction.
4. the piston component of linear compressor according to claim 3, it is characterised in that: the stop tab has described in order
The central hole that bolt passes through, the aperture of the central hole are less than the outer peripheral diameter of the nut.
5. the piston component of linear compressor according to claim 3, it is characterised in that: the stop tab is that circular ring shape is thin
Chip architecture and there are several through-holes for being distributed on circular ring structure.
6. the piston component of linear compressor according to claim 3, it is characterised in that: the stopper section and the piston
Bar is integrally formed, and the stopper section is the annular wall extended from the piston rod ora terminalis, and described elastic element one end is by institute
State annular wall limit.
7. the piston component of linear compressor according to claim 3, it is characterised in that: the stopper section is and the work
The circlip of stopper rod split settings, described elastic element one end are limited by the circlip, and it is recessed that the piston rod inner wall is equipped with annular
Slot, the circlip are placed and secured in the annular groove.
8. the piston component of linear compressor according to claim 3, it is characterised in that: have inside the piston head and use
With the helicitic texture of fixing bolt.
9. a kind of linear compressor, including shell and the body construction of the interior of shell is set, the body construction includes
Cylinder, mover assembly, stator module and piston component according to claims 1-8, the piston is in the compression chamber of cylinder
It moves back and forth.
10. linear compressor according to claim 9, it is characterised in that: the piston rod and mover assembly one
It forms or is connected with each other again after being separately formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711353992.6A CN109931243A (en) | 2017-12-15 | 2017-12-15 | The piston component and linear compressor of linear compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711353992.6A CN109931243A (en) | 2017-12-15 | 2017-12-15 | The piston component and linear compressor of linear compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109931243A true CN109931243A (en) | 2019-06-25 |
Family
ID=66980551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711353992.6A Pending CN109931243A (en) | 2017-12-15 | 2017-12-15 | The piston component and linear compressor of linear compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109931243A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110410292A (en) * | 2019-08-13 | 2019-11-05 | 黄石东贝电器股份有限公司 | A kind of Linearkompressor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4107952A1 (en) * | 1990-03-17 | 1991-09-19 | Barmag Luk Automobiltech | Radial piston pump assembly - is activated by eccentric on rotatable shaft with support body between eccentric and piston |
| CN204041433U (en) * | 2014-08-25 | 2014-12-24 | 中国石油天然气股份有限公司 | Plunger and fracturing pump hydraulic end |
| CN104632578A (en) * | 2013-11-06 | 2015-05-20 | 青岛海尔智能技术研发有限公司 | Piston positioning device of linear compressor |
| CN106150970A (en) * | 2015-03-31 | 2016-11-23 | 青岛海尔智能技术研发有限公司 | Linear compressor |
| CN206221201U (en) * | 2016-11-03 | 2017-06-06 | 青岛万宝压缩机有限公司 | Linear compressor piston coupling structure and linear compressor |
-
2017
- 2017-12-15 CN CN201711353992.6A patent/CN109931243A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4107952A1 (en) * | 1990-03-17 | 1991-09-19 | Barmag Luk Automobiltech | Radial piston pump assembly - is activated by eccentric on rotatable shaft with support body between eccentric and piston |
| CN104632578A (en) * | 2013-11-06 | 2015-05-20 | 青岛海尔智能技术研发有限公司 | Piston positioning device of linear compressor |
| CN204041433U (en) * | 2014-08-25 | 2014-12-24 | 中国石油天然气股份有限公司 | Plunger and fracturing pump hydraulic end |
| CN106150970A (en) * | 2015-03-31 | 2016-11-23 | 青岛海尔智能技术研发有限公司 | Linear compressor |
| CN206221201U (en) * | 2016-11-03 | 2017-06-06 | 青岛万宝压缩机有限公司 | Linear compressor piston coupling structure and linear compressor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110410292A (en) * | 2019-08-13 | 2019-11-05 | 黄石东贝电器股份有限公司 | A kind of Linearkompressor |
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Application publication date: 20190625 |