CN108343594A - A kind of opposed type Linearkompressor end cap and its design method - Google Patents
A kind of opposed type Linearkompressor end cap and its design method Download PDFInfo
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- CN108343594A CN108343594A CN201810449932.2A CN201810449932A CN108343594A CN 108343594 A CN108343594 A CN 108343594A CN 201810449932 A CN201810449932 A CN 201810449932A CN 108343594 A CN108343594 A CN 108343594A
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- end cap
- cambered surface
- center cambered
- center
- central point
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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
- 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
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
Abstract
The present invention relates to Linearkompressor technical fields, and in particular to a kind of opposed type Linearkompressor end cap and its design method.The opposed type Linearkompressor end cap be revolving body, including the outer surface set gradually from up to down and inner surface and be connected between outer surface and inner surface outer diameter circle.The inner surface includes from the center cambered surface and joint face set gradually from inside to outside.The center cambered surface is arc surface or elliptical arc surface.The present invention is designed by the inner surface to opposed type Linearkompressor end cap, under the premise of not increasing compressor volume and weight, meeting appearance and size, compressor end surface vibration is set to significantly reduce, effectively eliminate the harmful effect that compressor end surface vibration is brought, weld seam is set to be more uniformly stressed simultaneously, and maximum concentrated stress significantly reduces.
Description
Technical field
The present invention relates to Linearkompressor technical fields, and in particular to a kind of opposed type Linearkompressor end cap and its design
Method.
Background technology
Sterlin refrigerator is mainly used for infrared chip cooling, and Linearkompressor is the important composition portion of sterlin refrigerator
Point.Sterlin refrigerator will produce vibration at work, which can seriously affect the normal work of infrared chip, it is therefore desirable to
The vibration for reducing sterlin refrigerator, ensures the normal work of infrared chip.In general, opposed type Linearkompressor is in work
The compression stroke for forming sucking between plug and cylinder, operation gas being discharged, so that piston carries out linear reciprocation fortune in cylinder interior
It moves and compresses Working medium gas.The structure of opposed type Linearkompressor is that two Linearkompressor symmetrical expressions are arranged, each compressor
Internal piston motion is all linear reciprocal movement, and the piston motion phase angle of two Linearkompressors theoretically differs 180 °,
The vibration of compressor can be effectively reduced using symmetrical structure.
Currently, the end cap inner surface of the Linearkompressor part of sterlin refrigerator is all planar structure, by actually answering
Larger vibration is still had in compressor end cap surface with the end cap of verification, planar structure mode, and vibration distribution is uneven.It should
Vibration is periodically compressed since compression piston moves back and forth the Working medium gas between compressor inside back pressure cavity and end cap
Expansion, vibration force is transmitted on end cap, is periodically vibrated so as to cause end cap, which vibrates for end cap central
Greatly, end cap edge vibration is small.The vibration can not be arranged symmetrically elimination by compressor, some compressors are by increasing end cap at present
Thickness vibrates to reduce, but increase thickness can increase compressor weight and volume, influence practical application.On the other hand, it compresses
Generator terminal lid is welded on compressor, due to the inhomogeneities of vibration distribution, will also result in the uneven of end cap stress, to shadow
The stress for ringing weld seam, has an impact the reliability of weld seam.
Invention content
The purpose of the present invention is to provide a kind of opposed type Linearkompressor end cap and its design method, the end cap and its set
Meter method can solve the deficiencies in the prior art, under the premise of not increasing compressor volume with weight, greatly reduce
The vibration stressing conditions of compressor end face, and effectively prevent the harmful effect to weld seam reliability.
To achieve the above object, present invention employs following technical schemes：
A kind of opposed type Linearkompressor end cap, the end cap are revolving body, including the outer surface that sets gradually from up to down with it is interior
Surface and the outer diameter circle being connected between outer surface and inner surface；The inner surface includes from setting gradually from inside to outside
Heart cambered surface and joint face；The center cambered surface is arc surface or elliptical arc surface.
Further, the outer surface is plane or arc surface.
Further, the joint face is any one in circular conical surface, arc surface or elliptical arc surface.
Further, the interconnecting piece of end cap and compressor is equipped between the inner circumferential and the periphery of inner surface of the outer diameter circle；
The end cap welding is threadedly coupled on the compressor.
The invention further relates to a kind of design methods of above-mentioned opposed type Linearkompressor end cap, and this method includes following step
Suddenly：
（1）Determine the central point of center cambered surface：The central point of center cambered surface is located at the inner surface side of end cap, and the central point is located at
On the center line of end cap；If center cambered surface is arc surface, the radius of the arc surface be more than or equal to outer diameter circular diameter four/
One；If center cambered surface is elliptical arc surface, the distance on central point to the center cambered surface arc top of the elliptical arc surface is more than or equal to outer diameter
The a quarter of circular diameter.
（2）Center cambered surface is determined according to the central point of center cambered surface：What the central point of center cambered surface and center cambered surface was formed
Angle A is more than or equal to the one third of outer diameter circle and the angle B of the central point formation of center cambered surface.
（3）The size for first determining the angle A that the central point of center cambered surface and center cambered surface is formed, further according to outer diameter diameter of a circle
And the connection type of end cap and compressor, the structure of joint face is determined, by outer surface, outer diameter circle, joint face and center cambered surface
It links up, end cover surface is made to form entirety.
Further, as ∠ A=∠ B, the area of joint face is 0.That is the connectionless face of end cap inner surface, centered on entirety
Cambered surface.
By above technical scheme it is found that the present invention is designed by the inner surface to opposed type Linearkompressor end cap,
Under the premise of not increasing compressor volume and weight, meeting appearance and size, so that compressor end surface vibration is significantly reduced, effectively disappear
In addition to the harmful effect that compressor end surface vibration is brought, while weld seam being made to be more uniformly stressed, and maximum concentrated stress significantly drops
It is low.
Description of the drawings
Fig. 1 is the structural schematic diagram of opposed type Linearkompressor end cap in the present invention；
Fig. 2 is the structural schematic diagram of opposed type Linearkompressor end cap in embodiment one.
Wherein：
1, outer surface, 2, the intersecting lens of center cambered surface and joint face, 3, joint face, 4, center cambered surface, 5, the center of center cambered surface
Point, 6, the interconnecting piece of end cap and compressor, 7, outer diameter circle, 8, welding step, 9, arc surface.
Specific implementation mode
The present invention will be further described below in conjunction with the accompanying drawings：
A kind of opposed type Linearkompressor end cap as shown in Figure 1, the end cap are revolving body, including set gradually from up to down
Outer surface 1 and inner surface and the outer diameter circle 7 being connected between the periphery of outer surface 1 and the periphery of inner surface.The inner surface
It is the combinatorial surface that center cambered surface 4 and joint face 3 by setting gradually from inside to outside are spliced into.Center cambered surface in Fig. 1 and company
The inside of the intersecting lens 2 of junction is center cambered surface 4, and outside is joint face 3.The center cambered surface 4 is arc surface or ellipse
Cambered surface.
Further, the form of the outer surface is unlimited, it is preferred that the outer surface is plane or arc surface.
Further, the joint face is any one in circular conical surface, arc surface or elliptical arc surface.
Further, the interconnecting piece of end cap and compressor is equipped between the inner circumferential and the periphery of inner surface of the outer diameter circle 7
6.The end cap welding is threadedly coupled on the compressor.
The invention further relates to a kind of design methods of above-mentioned opposed type Linearkompressor end cap, and this method includes following step
Suddenly：
（1）Determine the central point 5 of center cambered surface：The central point 5 of center cambered surface is located at the inner surface side of end cap, and the center point
In on the center line of end cap；If center cambered surface 4 is arc surface, the radius of the arc surface is more than or equal to outer diameter justifies 7 diameters four
/ mono-；If center cambered surface 4 is elliptical arc surface, the distance d of the central point of the elliptical arc surface to center cambered surface arc top more than etc.
Justify a quarter of 7 diameter D, i.e. d >=0.25D in outer diameter.
（2）Center cambered surface is determined according to the central point of center cambered surface：What the central point of center cambered surface and center cambered surface was formed
Angle A is more than or equal to the one third of outer diameter circle and the angle B of the central point formation of center cambered surface（That is the ∠ of ∠ A >=1/3 B）.
（3）The size for first determining the angle A that the central point of center cambered surface and center cambered surface is formed, further according to outer diameter diameter of a circle
And the connection type of end cap and compressor, the structure of joint face is determined, by outer surface, outer diameter circle, joint face and center cambered surface
It links up, end cover surface is made to form entirety.The size and form of joint face and end cap and compressor interconnecting piece can be selected suitably
It takes, as long as ensureing that end cover surface forms entirety.As ∠ A=∠ B, the area of joint face is 0；I.e. end cap inner surface is without even
Junction, cambered surface centered on entirety.
Embodiment one
As shown in Fig. 2, in the present embodiment, if it is 96mm that outer diameter, which justifies 7 diameter D, outer surface 1 is plane, and end cap connects with compressor
Socket part is by the way of reserved welding step 8, and center cambered surface uses arc surface 9, and the radius of the arc surface 9 is 68.6mm, in
The central point 5 of heart cambered surface is located at end cap central line inner surface side, and the angle of the formation of central point 5 of arc surface 9 and center cambered surface is
78 °, outer diameter circle 7 and the angle of the formation of central point 5 of center cambered surface are 84 °, direct and reserved 8 phase of welding step of center cambered surface
It connects, in this example connectionless face 3.
The present invention design principle be：
At work, constantly compression and expansion, the power act directly on the Working medium gas inside compressor sterlin refrigerator
The inner surface of compressor head, when inner surface is plane, the Impact direction of the power causes all along the axis direction of end cap
Compressor end interior surface stress maximizes.When gas expansion, end cap inner surface is caused by outside expansive force in end cap
Center portion position protrusion, when gas compression, end cap central position can concave.Since Working medium gas constantly compresses and expands, just
It can lead to the continuous protrusion of end cap and indent, " chatter " effect be formed, to form larger vibration in end cover surface.When interior table
When face is changed to globoidal structure, the Impact direction of end cap inner surface all becomes the normal direction along each cambered surface point, to reduce
Power axially reduces " chatter " effect, to reduce the vibration of end cap.
In addition, compressor overall structure multiple location is using welding structure or the connection side of compressor head and compressor
When formula uses welding manner, by reducing the forced vibration of end cap, the weld seam stressing conditions of region of interest can be improved, to subtract
The small harmful effect to weld seam.
It is verified according to practical application, when inner surface globoidal structure is reasonable, compressor end surface vibration can reduce a number
It is more than magnitude.
Embodiment described above is only that the preferred embodiment of the present invention is described, not to the model of the present invention
It encloses and is defined, under the premise of not departing from design spirit of the present invention, technical side of the those of ordinary skill in the art to the present invention
The various modifications and improvement that case is made should all be fallen into the protection domain of claims of the present invention determination.
Claims (6)
1. a kind of opposed type Linearkompressor end cap, it is characterised in that：The end cap is revolving body, including is set gradually from up to down
Outer surface and inner surface and the outer diameter that is connected between outer surface and inner surface justify；The inner surface includes from from inside to outside
The center cambered surface and joint face set gradually；The center cambered surface is arc surface or elliptical arc surface.
2. a kind of opposed type Linearkompressor end cap according to claim 1, it is characterised in that：The outer surface is plane
Or arc surface.
3. a kind of opposed type Linearkompressor end cap according to claim 1, it is characterised in that：The joint face is circular cone
Any one in face, arc surface or elliptical arc surface.
4. a kind of opposed type Linearkompressor end cap according to claim 1, it is characterised in that：The inner circumferential of the outer diameter circle
The interconnecting piece of end cap and compressor is equipped between the periphery of inner surface；The end cap welding is threadedly coupled on the compressor.
5. the design method of the opposed type Linearkompressor end cap according to claim 1 ~ 4 any one, it is characterised in that：
This approach includes the following steps：
（1）Determine the central point of center cambered surface：The central point of center cambered surface is located at the inner surface side of end cap, and the central point is located at
On the center line of end cap；If center cambered surface is arc surface, the radius of the arc surface be more than or equal to outer diameter circular diameter four/
One；If center cambered surface is elliptical arc surface, the distance on central point to the center cambered surface arc top of the elliptical arc surface is more than or equal to outer diameter
The a quarter of circular diameter；
（2）Center cambered surface is determined according to the central point of center cambered surface：The angle A that the central point of center cambered surface and center cambered surface is formed is big
In the one third for the angle B that the central point equal to outer diameter circle and center cambered surface is formed；
（3）The size for first determining the angle A that the central point of center cambered surface and center cambered surface is formed, further according to outer diameter diameter of a circle and
The connection type of end cap and compressor determines the structure of joint face, and outer surface, outer diameter circle, joint face and center cambered surface are connected
Come, end cover surface is made to form entirety.
6. the design method of opposed type Linearkompressor end cap according to claim 5, it is characterised in that：As ∠ A=∠ B
When, the area of joint face is 0.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810449932.2A CN108343594B (en) | 2018-05-11 | 2018-05-11 | Opposed linear compressor end cover and design method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810449932.2A CN108343594B (en) | 2018-05-11 | 2018-05-11 | Opposed linear compressor end cover and design method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108343594A true CN108343594A (en) | 2018-07-31 |
| CN108343594B CN108343594B (en) | 2023-10-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810449932.2A Active CN108343594B (en) | 2018-05-11 | 2018-05-11 | Opposed linear compressor end cover and design method thereof |
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| Country | Link |
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| CN (1) | CN108343594B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09113053A (en) * | 1995-10-19 | 1997-05-02 | Sanyo Electric Co Ltd | Stirling refrigerator |
| CN101191472A (en) * | 2007-12-27 | 2008-06-04 | 宁波亿盛电机有限公司 | Linear compressor |
| WO2008108460A1 (en) * | 2007-03-08 | 2008-09-12 | Sharp Kabushiki Kaisha | Regenerator for stirling engine and stirling engine using same |
| CN208564911U (en) * | 2018-05-11 | 2019-03-01 | 中国电子科技集团公司第十六研究所 | A kind of opposed type Linearkompressor end cap |
-
2018
- 2018-05-11 CN CN201810449932.2A patent/CN108343594B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09113053A (en) * | 1995-10-19 | 1997-05-02 | Sanyo Electric Co Ltd | Stirling refrigerator |
| WO2008108460A1 (en) * | 2007-03-08 | 2008-09-12 | Sharp Kabushiki Kaisha | Regenerator for stirling engine and stirling engine using same |
| CN101191472A (en) * | 2007-12-27 | 2008-06-04 | 宁波亿盛电机有限公司 | Linear compressor |
| CN208564911U (en) * | 2018-05-11 | 2019-03-01 | 中国电子科技集团公司第十六研究所 | A kind of opposed type Linearkompressor end cap |
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| Publication number | Publication date |
|---|---|
| CN108343594B (en) | 2023-10-20 |
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