CN205401037U - Straight line compressor and electrical apparatus - Google Patents
Straight line compressor and electrical apparatus Download PDFInfo
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- CN205401037U CN205401037U CN201620131799.2U CN201620131799U CN205401037U CN 205401037 U CN205401037 U CN 205401037U CN 201620131799 U CN201620131799 U CN 201620131799U CN 205401037 U CN205401037 U CN 205401037U
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Abstract
The utility model provides straight line compressor and electrical apparatus, the piston initial position in the cylinder confirms based on the target stroke of sharp compressor -running when booking the operating mode apart from the distance of top dead center, the straight line compressor -running be in during predetermined operating mode the time grow up in straight line compressor -running when the biggest operating mode the time long, has reduced sharp compressor -running and in the time of the operating mode through increaseing the piston motion stroke, has compared with prior art, the volume efficiency of the sharp compressor of improvement under the condition of less refrigerating output.
Description
Technical field
This utility model relates to refrigeration technology field, particularly to a kind of linear compressor and electrical equipment.
Background technology
Linear compressor is the electronic product of linear electric motors and being made of one of compressor that will provide for driving force, higher than the efficiency of traditional reciprocating-piston compressor due to it, it has also become the focus of household electric appliances research.
The stroke that linear compressor moves in the cylinder by controlling its piston carries out transfiguration, and owing to linear compressor does free-piston motion, under the effect of gas force, the center of piston movement will offset to the direction away from top dead centre, make piston can not reach top dead centre when reaching target stroke, cause the volumetric efficiency of linear compressor to reduce.Therefore, in order to reach higher volumetric efficiency, piston movement should be enable as far as possible to reach top dead centre (TopDeadCenter, TDC), also to prevent piston movement from exceeding top dead centre and hit cylinder.Based on this, at present when designing the initial makeup location of piston, it will usually be designed according to the maximum duty of piston, namely ensure that piston freely-movable when range just reaches top dead centre.And under other operating mode, in order to improve the volumetric efficiency of linear compressor, making piston can reach top dead centre, a solution is the stroke of oversize piston motion.
But, strengthen stroke and can cause that refrigerating capacity also increases therewith, but for the household electrical appliance such as refrigerator, be in most cases not required to big refrigerating capacity.Therefore, the volumetric efficiency how improving linear compressor when less refrigerating capacity becomes problem demanding prompt solution.
Utility model content
The purpose of this utility model is to provide a kind of linear compressor and electrical equipment, to improve the volumetric efficiency of linear compressor when less refrigerating capacity.
For achieving the above object, this utility model provides following technical scheme:
A kind of linear compressor, including cylinder and the piston being arranged in described cylinder, the target stroke when distance of described piston initial position distance top dead centre in the cylinder operates in predetermined operating mode based on described linear compressor is determined；Duration when described linear compressor operates in described predetermined operating mode operates in duration during maximum duty more than described linear compressor.
Above-mentioned linear compressor, it is preferred that the target stroke that the distance of described piston initial position distance top dead centre in the cylinder operates in when running the longest operating mode of duration based on described linear compressor is determined.
Above-mentioned linear compressor, preferably, the distance of described piston initial position distance top dead centre in the cylinder is: described linear compressor operates in the half of the target stroke of piston movement during described predetermined operating mode and the difference of the preset side-play amount corresponding with described predetermined operating mode.
A kind of electrical equipment, including controller and the linear compressor as described in any one before claim 1-3.
Above-mentioned electrical equipment, preferably, described controller includes: for when described linear compressor operates in described predetermined operating mode, only described linear compressor is applied alternating voltage, by controlling the size of applied alternating voltage so that the traveled distance of described piston is equal to the target stroke under described predetermined operating mode；When described linear compressor operates in non-predetermined operating mode, described linear compressor is applied alternating voltage and DC voltage, the size and Orientation of size and described DC voltage by controlling described alternating voltage so that described piston reaches the controller of the target stroke that the traveled distance of described piston is equal under described non-predetermined operating mode during described top dead centre.
Above-mentioned electrical equipment, it is preferred that described electrical equipment includes: refrigerator or air-conditioning etc. use the electrical equipment of linear compressor.
A kind of linear compressor of the embodiment of the present application offer and electrical equipment, the target stroke that the distance of piston initial position distance top dead centre in the cylinder operates in during predetermined operating mode based on linear compressor is determined；Duration when linear compressor operates in described predetermined operating mode operates in duration during maximum duty more than described linear compressor, decrease linear compressor and operate in the time of the operating mode by oversize piston movement travel, compared with prior art, the volumetric efficiency of linear compressor is improved when less refrigerating capacity.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is only embodiment of the present utility model, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to the accompanying drawing provided.
In the linear compressor that Fig. 1 provides for the embodiment of the present application, piston is in the exemplary plot of the initial position of cylinder.
Term " first " in specification and claims and above-mentioned accompanying drawing, " second ", " the 3rd " " the 4th " etc. (if existence) are for distinguishing similar part, without being used for describing specific order or precedence.Should be appreciated that the data of so use can be exchanged in the appropriate case, in order to embodiments herein described herein can be implemented with the order except here illustrating.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of this utility model, rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of this utility model protection.
Refer to the exemplary plot of the initial position of cylinder in the linear compressor that Fig. 1, Fig. 1 provide for the embodiment of the present application.
Wherein, piston 1 can do the free-piston motion of above-below direction in cylinder 2, and top dead centre refers to the position of cylinder head 21 in cylinder 2, and this position is fixing, an absolute position, will not change.The concept relative with top dead centre is lower dead center, and lower dead center refers to the piston movement farthest position away from top dead centre direction, and this position can change along with the difference of piston stroke and center, and its absolute position can change.
In this utility model embodiment, piston 1 in cylinder in the target stroke that operates in during predetermined operating mode based on linear compressor of distance of initial position distance top dead centre determine；Duration when linear compressor operates in predetermined operating mode operates in duration during maximum duty more than linear compressor.
The linear compressor that this utility model provides, the target stroke that the distance of piston initial position distance top dead centre in the cylinder operates in during predetermined operating mode based on linear compressor is determined；Duration when linear compressor operates in predetermined operating mode operates in duration during maximum duty more than linear compressor, decrease linear compressor and operate in the time of the operating mode by oversize piston movement travel, thus improve the volumetric efficiency of linear compressor when less refrigerating capacity.
Optionally, the target stroke that the distance of piston initial position distance top dead centre in the cylinder operates in when running the longest operating mode of duration based on linear compressor is determined.
It is to say, in this utility model embodiment, using operating mode the most frequently used for linear compressor as predetermined operating mode, i.e. determine the piston of linear compressor initial position in the cylinder according to the target stroke under the operating mode that the operation time is the longest.Compared with prior art, the volumetric efficiency of linear compressor is improved when reducing refrigerating capacity to greatest extent
Optionally, the distance of piston initial position distance top dead centre in the cylinder is: linear compressor operates in the half of the target stroke of piston movement during predetermined operating mode and the difference of the preset side-play amount corresponding with predetermined operating mode.Can be expressed as with formula:
d0=L/2-δ, wherein,
d0Represent the distance of piston initial position distance top dead centre in the cylinder；L represents target stroke when linear compressor operates in predetermined operating mode；δ represents the preset side-play amount corresponding with predetermined operating mode, and this side-play amount is linear compressor when doing free-piston motion, in the side-play amount of center of the effect lower piston motion of gas force, it is possible to obtained in conjunction with practical experience by Design Theory.
Optionally, this utility model embodiment also provides for a kind of electrical equipment, this electrical equipment have controller and with control to be connected, foregoing linear compressor.
Optionally, controller noted above can be: for when linear compressor operates in predetermined operating mode, only linear compressor being applied alternating voltage, by controlling the size of applied alternating voltage so that the traveled distance of piston is equal to the target stroke under predetermined operating mode；When linear compressor operates in non-predetermined operating mode, linear compressor is applied alternating voltage and DC voltage, the size and Orientation of size and DC voltage by controlling alternating voltage so that piston reaches the controller of the target stroke that the traveled distance of piston is equal under non-predetermined operating mode during top dead centre.
Optionally, above-mentioned electrical equipment can be the electrical equipment that refrigerator, air-conditioning etc. use linear compressor.
Above the provided linear compressor of this utility model and electrical equipment are described in detail.Applying specific case in the embodiment of the present application principle of the present utility model and embodiment are set forth, the explanation of above example is only intended to help to understand core concept of the present utility model.Should be understood that; for those skilled in the art; under the premise without departing from this utility model principle, it is also possible to this utility model carries out some improvement and modification, these improve and modification also falls in this utility model scope of the claims.
Claims (6)
1. a linear compressor, including cylinder and the piston being arranged in described cylinder, it is characterised in that the target stroke when distance of described piston initial position distance top dead centre in the cylinder operates in predetermined operating mode based on described linear compressor is determined；Duration when described linear compressor operates in described predetermined operating mode operates in duration during maximum duty more than described linear compressor.
2. linear compressor according to claim 1, it is characterised in that the target stroke that the distance of described piston initial position distance top dead centre in the cylinder operates in when running the longest operating mode of duration based on described linear compressor is determined.
3. linear compressor according to claim 1 and 2, it is characterized in that, the distance of described piston initial position distance top dead centre in the cylinder is: described linear compressor operates in the half of the target stroke of piston movement during described predetermined operating mode and the difference of the preset side-play amount corresponding with described predetermined operating mode.
4. an electrical equipment, it is characterised in that include controller and the linear compressor as described in claim 1-3 any one.
5. electrical equipment according to claim 4, it is characterized in that, described controller includes: for when described linear compressor operates in described predetermined operating mode, only described linear compressor is applied alternating voltage, by controlling the size of applied alternating voltage so that the traveled distance of described piston is equal to the target stroke under described predetermined operating mode；When described linear compressor operates in non-predetermined operating mode, described linear compressor is applied alternating voltage and DC voltage, the size and Orientation of size and described DC voltage by controlling described alternating voltage so that described piston reaches the controller of the target stroke that the traveled distance of described piston is equal under described non-predetermined operating mode during described top dead centre.
6. the electrical equipment according to claim 4 or 5, it is characterised in that described electrical equipment includes: refrigerator or air-conditioning etc. use the electrical equipment of linear compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620131799.2U CN205401037U (en) | 2016-02-19 | 2016-02-19 | Straight line compressor and electrical apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620131799.2U CN205401037U (en) | 2016-02-19 | 2016-02-19 | Straight line compressor and electrical apparatus |
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| Publication Number | Publication Date |
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| CN205401037U true CN205401037U (en) | 2016-07-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620131799.2U Active CN205401037U (en) | 2016-02-19 | 2016-02-19 | Straight line compressor and electrical apparatus |
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| CN (1) | CN205401037U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105587652A (en) * | 2016-02-19 | 2016-05-18 | 珠海格力节能环保制冷技术研究中心有限公司 | Linear compressor, control method and device thereof, and electrical appliance |
| CN107061250A (en) * | 2017-05-31 | 2017-08-18 | 青岛海尔智能技术研发有限公司 | The automatic control method for changing linear compressor volume of cylinder |
-
2016
- 2016-02-19 CN CN201620131799.2U patent/CN205401037U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105587652A (en) * | 2016-02-19 | 2016-05-18 | 珠海格力节能环保制冷技术研究中心有限公司 | Linear compressor, control method and device thereof, and electrical appliance |
| CN105587652B (en) * | 2016-02-19 | 2018-07-03 | 珠海格力节能环保制冷技术研究中心有限公司 | Linear compressor and its control method, device, electric appliance |
| CN107061250A (en) * | 2017-05-31 | 2017-08-18 | 青岛海尔智能技术研发有限公司 | The automatic control method for changing linear compressor volume of cylinder |
| CN107061250B (en) * | 2017-05-31 | 2020-04-21 | 青岛海尔智能技术研发有限公司 | Control method for automatically changing volume of cylinder of linear compressor |
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