CN201330695Y - Clearance setting device for capacity-varying regulation of linear compressor - Google Patents
Clearance setting device for capacity-varying regulation of linear compressor Download PDFInfo
- Publication number
- CN201330695Y CN201330695Y CNU2009201051096U CN200920105109U CN201330695Y CN 201330695 Y CN201330695 Y CN 201330695Y CN U2009201051096 U CNU2009201051096 U CN U2009201051096U CN 200920105109 U CN200920105109 U CN 200920105109U CN 201330695 Y CN201330695 Y CN 201330695Y
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- clearance
- venting plug
- linearkompressor
- changing
- fixing device
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Abstract
A clearance setting device for capacity-varying regulation of a linear compressor related by this utility model is composed as follows: a discharge stop that has a cavity and is mounted in an interior in the front of a piston in a cylinder of the linear compressor; a clearance between the discharge stop and the compressor cylinder and a clearance between the piston and the compressor cylinder. The rear end of the cavity in the discharge stop is provided with a discharge valve. The front end in the cavity in the discharge stop is equipped with a flexible discharge tube. A connecting component is fixed to the front end of the discharge stop. An executing mechanism for adjusting the discharge stop position is connected to the connecting component and fixed to the inner end surface of the cylinder end cover. The executing mechanism for adjusting the discharge stop position is an electric executing mechanism, an air-powered executing mechanism or a hydraulic executing mechanism. When there is need to execute the load adjustment to the compressor, a control system changes the piston route to adjust the air displacement, and adjusts the discharge stop position via the executing mechanism for adjusting the discharge stop position so as to keep a set clearance in the process of the piston compression, and keep a higher compressor volume efficiency when adjusting the route.
Description
Technical field
The present invention relates to the clearance-fixing device for changing that a kind of Linearkompressor varying capacity is regulated,
Background technique
Linearkompressor have the efficient height, simple in structure, volume is little, in light weight, do not have oil or advantages such as few lubricant oil, varying capacity excellent, become the developing direction of Small Refrigerating Equipment such as refrigerator with high-efficient compressor of new generation.In the refrigeration plant working procedure, because influences such as application demand and extraneous factors, cooling load can be along with the running dynamic change.Realize the dynamic adjustments of refrigeration plant by the varying capacity of compressor, can improve the energy saving of its operation on the one hand, also can guarantee more precise dose control on the other hand, so the varying capacity refrigeration system has obtained increasing application.
Compressor variable capacity method mainly contains variable frequency adjustment, becomes stroke adjustment, by-pass method etc.Because Linearkompressor is directly to do linear reciprocating motion by the mover drive piston of linear electric motor, can regulate the compressor air-discharging amount by changing piston stroke, thereby realize the compressor variable capacity regulating.Become the stroke adjustment technology and be widely used on the variable compressor of car air conditioner, nineteen eighty-three, General Motors Overseas Corporation released V5 change discharge capacity rocking plate type compressor first, and U.S. Delphi company releases V6, V7 change discharge capacity rocking plate type compressor again subsequently; Japanese Sanden company developed the rocking plate type variable compressor in 1985; Japanese subsequently Denso company, Japanese Sanden company and U.S. Delphi company develop the ramp type variable compressor in succession.Variable compressor utilizes rocker or swash plate that the main axis rotation movement conversion is reciprocating motion of the pistons, regulates the compressor piston stroke by changing rocker (or swash plate) angle, realizes the stepless change discharge capacity adjusting of automobile air conditioner compressor thereby compressor displacement is changed.When stroke adjustment, the motion that rocker or swash plate change angle is subjected to the axle journal kidney slot TRAJECTORY CONTROL that links to each other with main shaft, guarantees that piston all has a constant minimum clearance when any piston stroke.Become stroke adjustment for Linearkompressor and mainly concentrate on piston stroke control aspect, adopt the method for pattern recognition to control Linearkompressor, developed a kind of control gear that is used for the refrigerator Linearkompressor as people such as the Heo of South Korea's LG Electronics Inc; People such as Huang have designed corresponding controller on the basis of research system dynamic characteristic, adopted the control algorithm of a kind of PDF of being called (pseudo-derivative-feedback) to realize the control of piston position and stop.People such as Sanada have done research to the control of Linearkompressor piston stroke, utilize no sensor open loop control, have obtained and have controlled effect preferably.
Usually Linearkompressor piston initial rest position is in the mid point of displacement stroke, and when piston stroke reduces, cylinder clearance will increase, and compressor efficiency especially volumetric efficiency can reduce greatly.Because mechanical positioners such as Linearkompressor non-crank connecting rod, rocker, swash plate, so piston all has a constant minimum clearance in the time of can't adopting mechanical mechanism to guarantee any piston stroke as the car air conditioner variable compressor on becoming stroke apparatus when piston stroke changes, therefore Linearkompressor becomes the regulative mode research that the Stroke Control technology is not only a piston stroke, guarantee when how to be implemented in the regulating piston stroke exhaust cross gap constant also be the major issue that we need solve.
Summary of the invention
The object of the invention is to provide a kind of Linearkompressor to become the clearance-fixing device for changing of stroke adjustment, this device is regulated the position of outlet valve when regulating the compressor piston stroke according to the requirement of Load Regulation, the exhaust cross gap that guarantees Piston Compression does not change with the variation of piston stroke, the volumetric efficiency decline problem when reducing with the piston stroke that solves Linearkompressor.
Technological scheme of the present invention is as follows:
Linearkompressor provided by the invention becomes the clearance-fixing device for changing of stroke adjustment, and it is composed as follows:
One inside that is installed on linear compressor cylinder inner carrier the place ahead has the venting plug of cavity; Gap between described venting plug and the described compresser cylinder is with the gap between piston and the described compresser cylinder; An exhaust valve plate is installed in described venting plug internal cavity rear end, and described venting plug internal cavity front end is installed a flexible venting tube;
One is fixed in the link on the described venting plug front end; Link to each other with described link with one and be fixed on venting plug position regulation actuator on the compresser cylinder end cap interior edge face.
Described venting plug position regulation actuator is electrodynamic type actuator, pneumatic execution formula mechanism or hydraulic type actuator.
Described electrodynamic type actuator is a micro-step motor.
Described pneumatic actuating mechanism is a pneumatic actuator.
Described hydraulic type actuator is a hydraulic actuator.
Described link adopts the multiple spot that the side direction biasing does not take place when mobile the assurance venting plug to be connected with venting plug.
Take oil seal between described venting plug and the compresser cylinder or in succession between install piston ring packing additional.
The advantage of the clearance-fixing device for changing of Linearkompressor change stroke adjustment provided by the invention is as follows:
The present invention is simple in structure, convenient for installation and maintenance, adopt change stroke adjustment mode to realize in the process of varying capacity adjusting at Linearkompressor, the piston upper dead center position of Linearkompressor will change along with becoming stroke adjustment, when piston stroke reduces, exhaust cross gap will increase, and compressor efficiency especially volumetric efficiency can reduce greatly.After the cylinder exhaust end is installed the present invention, make exhaust cross gap under the situation that piston stroke changes, remain at steady state value, guaranteed the efficient of compressor.
Description of drawings
Accompanying drawing 1 is the structural representation that Linearkompressor of the present invention becomes the clearance-fixing device for changing of stroke adjustment.
Embodiment
Accompanying drawing 1 is the structural representation that Linearkompressor of the present invention becomes the clearance-fixing device for changing of stroke adjustment, and as seen from the figure, Linearkompressor provided by the invention becomes the clearance-fixing device for changing of stroke adjustment, and it is composed as follows:
One inside that is installed on linear compressor cylinder 1 inner carrier 2 the place aheads has the venting plug 4 of cavity; Gap between described venting plug 4 and the described compresser cylinder 1 is with the gap between piston 2 and the described compresser cylinder 1; An exhaust valve plate 3 is installed in the rear end of the internal cavities of described venting plug 4, and the internal cavities front end of described venting plug 4 is installed a flexible venting tube 5;
One is fixed in the link 9 on described venting plug 4 front-end faces; With
One links to each other with described link 9 and is fixed on venting plug position regulation actuator 8 on compresser cylinder end cap 6 interior edge faces;
Described venting plug position regulation actuator 8 (as micro-step motors) are electrodynamic type actuator, pneumatic execution formula mechanism (pneumatic actuator) or hydraulic type actuator (hydraulic pressure is carried out the formula device).
Pressurized gas, is discharged from flexible venting tube 5 after exhaust valve plate 3 enters venting plug 4 inner chambers then through piston 2 compressions, and flexible venting tube 5 adopts flexible pipe, makes its normal exhaust work when venting plug 4 moves;
Venting plug position regulation actuator 8 is fixed on cylinder end piece 6 interior edge faces, venting plug 4 is connected with venting plug position regulation actuator 8 by link 9, actuator can adopt electric actuator (as micro-step motor), also can adopt pneumatic or other hydraulic type actuators realize the accurate control of venting plug position.Link 9 can adopt multiple spot to be connected with venting plug 4, to guarantee venting plug the side direction biasing does not take place when mobile.
Take oil seal between venting plug 4 and the compresser cylinder 1 or on the venting plug outer wall, adopt piston ring packing, leak with extraneous nothing to guarantee the cavity 7 that number in the figure is.
Working procedure is: when refrigeration system (compressor) load reduced, control system at first instructed venting plug position regulation actuator 8 to work, and venting plug 4 positions are moved to the left, and reduces the stroke of piston simultaneously by adjusting; When the refrigeration system load increases, control system instruction venting plug position regulation actuator 8 moves right venting plug 4 positions, simultaneously by regulating the stroke that increases piston, remain constant clearance between the upper dead center that makes venting plug 4 and piston 2 move, so just can realize Linearkompressor varying capacity regulatory function efficiently.
Claims (7)
1, a kind of Linearkompressor becomes the clearance-fixing device for changing of stroke adjustment, it is characterized in that it is composed as follows:
One inside that is installed on linear compressor cylinder inner carrier the place ahead has the venting plug of cavity; Gap between described venting plug and the described compresser cylinder is with the gap between piston and the described compresser cylinder; An exhaust valve plate is installed in described venting plug internal cavity rear end, and described venting plug internal cavity front end is installed a flexible venting tube;
One is fixed in the link on the described venting plug front end; Link to each other with described link with one and be fixed on venting plug position regulation actuator on the compresser cylinder end cap interior edge face.
2, become the clearance-fixing device for changing of stroke adjustment by the described Linearkompressor of claim 1, it is characterized in that, described venting plug position regulation actuator is electrodynamic type actuator, pneumatic actuating mechanism or hydraulic type actuator.
3, become the clearance-fixing device for changing of stroke adjustment by the described Linearkompressor of claim 2, it is characterized in that, described electrodynamic type actuator is a micro-step motor.
4, become the clearance-fixing device for changing of stroke adjustment by the described Linearkompressor of claim 2, it is characterized in that described pneumatic actuating mechanism is a pneumatic actuator.
5, become the clearance-fixing device for changing of stroke adjustment by the described Linearkompressor of claim 2, it is characterized in that, described hydraulic type actuator is a hydraulic actuator.
6, become the clearance-fixing device for changing of stroke adjustment by the described Linearkompressor of claim 1, it is characterized in that, described link adopts the multiple spot that the side direction biasing does not take place when mobile the assurance venting plug to be connected with venting plug.
7, become the clearance-fixing device for changing of stroke adjustment by the described Linearkompressor of claim 1, it is characterized in that, take oil seal between described venting plug and the compresser cylinder or on the venting plug outer wall, adopt piston ring packing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201051096U CN201330695Y (en) | 2009-01-14 | 2009-01-14 | Clearance setting device for capacity-varying regulation of linear compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201051096U CN201330695Y (en) | 2009-01-14 | 2009-01-14 | Clearance setting device for capacity-varying regulation of linear compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201330695Y true CN201330695Y (en) | 2009-10-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009201051096U Expired - Lifetime CN201330695Y (en) | 2009-01-14 | 2009-01-14 | Clearance setting device for capacity-varying regulation of linear compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201330695Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101776067B (en) * | 2009-01-14 | 2012-11-21 | 中国科学院理化技术研究所 | Clearance-fixing device for changing capacity regulation of linear compressor |
| CN107084125B (en) * | 2017-01-24 | 2020-01-03 | 青岛海尔智能技术研发有限公司 | Cylinder volume adjusting method of linear compressor |
-
2009
- 2009-01-14 CN CNU2009201051096U patent/CN201330695Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101776067B (en) * | 2009-01-14 | 2012-11-21 | 中国科学院理化技术研究所 | Clearance-fixing device for changing capacity regulation of linear compressor |
| CN107084125B (en) * | 2017-01-24 | 2020-01-03 | 青岛海尔智能技术研发有限公司 | Cylinder volume adjusting method of linear compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20091021 Effective date of abandoning: 20090114 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20091021 Effective date of abandoning: 20090114 |
|
| RGAV | Abandon patent right to avoid regrant |