CN1793657A - Method for autoregurating output displacement of vortex compressor for air conditioner of vehicle - Google Patents
Method for autoregurating output displacement of vortex compressor for air conditioner of vehicle Download PDFInfo
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- CN1793657A CN1793657A CN 200510022766 CN200510022766A CN1793657A CN 1793657 A CN1793657 A CN 1793657A CN 200510022766 CN200510022766 CN 200510022766 CN 200510022766 A CN200510022766 A CN 200510022766A CN 1793657 A CN1793657 A CN 1793657A
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- compression chamber
- pass hole
- scroll compressor
- air
- control valve
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Abstract
The invention discloses a method for automatically adjusting automatic the displacement of a scroll compressor for an automobile air-conditioner, firstly arranging a pair of compression chamber bypasses on a fixed scroll of the scroll compressor, where they are between air inlet bypasses of the scroll compressor and used to make the air in a middle compression chamber return; then arranging a pair of control valves on the compression chamber bypass, where they are on the back of the fixed scroll and provided with balancing holes connected air outlet and inlet cavities, and used to control opening or closing of the two compression chamber bypasses, and each of them is composed of piston, spring and end cover, and the pistons sense admission pressure and exhaust pressure, and the springs serve as balance adjustment components to automatically adjust the openings of the compression chamber bypasses, thus realizing automatic displacement adjustment. The method can automatically control the displacement of the scroll compressor according to the variation of difference between absorbtion and exhaust pressures.
Description
Technical field
The invention belongs to the Compressor Technology field, relate to a kind of method of automatic adjusting used for automobile air conditioning scroll compressor output discharge capacity.
Background technique
The operating mode that the used for automobile air conditioning scroll compressor is considered when design usually is the operating mode in the worst working state of Environmental Conditions.It is the maximum pump discharge that occurs during designed discharge capacity typically uses.
But in the real work, the least favorable state occurs hardly.Therefore, when selecting to have the compressor of bigger compression discharge capacity when considering worst state, in practical work process, the frequent off-design operating mode work of compressor, so system works efficient reduces
Scroll compressor is widely used in the automotive air-conditioning system.The air condition compressor of small and medium-sized car is directly driven by belt pulley by motor, and its refrigerating capacity is very big with the speed of a motor vehicle and load variations.Automobile is in idling or when going slowly, and refrigerating capacity is little, and at this moment often needs big refrigerating capacity, and supply falls short of demand for refrigerating capacity.Normal or when running at high speed, the output discharge capacity increases with the increase of rotating speed when automobile, refrigerating capacity increases, and supply exceed demand for refrigerating capacity, and useless power consumption also increases thereupon.Influence on the one hand the cornering ability of automobile, compressor refrigerating capacity surplus on the other hand, evaporating pressure reduces, and evaporimeter frosting does not match between each parts of refrigeration system, and coefficient of refrigeration reduces.Compressor is carried out discharge capacity control, can realize that compressor displacement changes the control that is complementary with refrigeration duty, make it when low speed, have high refrigerating capacity, can regulate unnecessary refrigerating capacity during high speed, reduce the input of idle work.
To compressor displacement control, traditional controlling method is to adopt adhesive, the disconnection of clutch, and the output discharge capacity of compressor is controlled in the start and stop of control compressor.This cold regulating method has following shortcoming: at first the fluctuation of cold wind outlet temperature is big, and air conditioning comfortableness is not good enough; Secondly, it is frequent that the adhesive of clutch, disconnection can cause that engine load changes, and produces the acceleration and deceleration of running counter to driver's wish, influences the cornering ability of automobile; Once more, the rotating speed of compressor only is subjected to the influence of rotating speed of automobile engine, and does not take required refrigerating capacity into account, when high speed having occurred, and negative consequence such as air conditioner refrigerating amount surplus, power consumption are big; At last, adhesive, disconnection that clutch is frequent have produced the frequent variations of noise, vibrations and refrigeration system pressure, influence the reliability and the durability of refrigeration system.See that thus automobile air conditioner compressor becomes discharge capacity controlling mechanism Design of device and is very important, and is the important research direction of car air conditioner.
Based on above reason, for the working efficiency that improves in normal operation can allow system to work under the least favorable state again, the compressor that just needs to use can have the self-regulating ability of discharge capacity.
Summary of the invention
Defective or deficiency according to above-mentioned prior art exists the objective of the invention is to, and a kind of method of used for automobile air conditioning scroll compressor of automatic adjusting discharge capacity that can be continuous within the specific limits is provided.This method is applicable to the refrigerated air-conditioning system of scroll compressor, thereby regulates the temperature of enclosed space by the Vapor Compression Refrigeration Cycle system.
In order to reach above-mentioned task, the present invention provides following technological scheme:
A kind of method of automatic adjusting used for automobile air conditioning scroll compressor output discharge capacity is characterized in that, comprises the following steps:
1) at first on the dish of the quiet whirlpool of scroll compressor a pair of compression chamber by-pass hole is set, its position is used for making the gas backstreaming of intermediate compression chamber when discharge capacity is regulated between the air inlet by-pass hole of scroll compressor, no longer compresses;
2) the pair of control valve is set then in the compression chamber by-pass hole, the back side that coil in quiet whirlpool its position, and be provided with the equalizing orifice that is communicated with exhaust cavity and air-inlet cavity respectively, be used to control the switching of compression chamber by-pass hole; This control valve is by piston, and spring and end cap are formed, and piston wherein is used for perception suction pressure and exhaust pressure simultaneously, and with spring as the balance adjustment member, regulate the aperture of compression chamber by-pass hole automatically.
The size of offering of above-mentioned compression chamber by-pass hole is to be in operation with compressor leakage phenomenon not occur and be as the criterion.Compression chamber by-pass hole diameter is less than the thickness of scrollwork wall thickness.
The aperture of above-mentioned said control valve control compression chamber by-pass hole is to guarantee realizing that in predetermined range continuous change discharge capacity is as the criterion.
Method of the present invention is provided with the compression chamber by-pass hole and control valve is set on the dish of the quiet whirlpool of scroll compressor, can realize that the discharge capacity of scroll compressor is regulated automatically.The output discharge capacity that relates among the present invention is regulated scroll compressor automatically, can be used for simultaneously other with compressor and field of Refrigeration and Air-conditioning.
Description of drawings
Fig. 1 is movable orbiting scroll and quiet whirlpool dish combination schematic representation;
Fig. 2 is the control valve sectional view;
Fig. 3 is control valve erection drawing sectional view when closing;
Sectional view when Fig. 4 is the unlatching of control method erection drawing;
Fig. 5 is the quiet whirlpool of the movable orbiting scroll of another an example of the present invention dish constitutional diagram;
Fig. 6 is another example work schematic representation of the present invention;
Fig. 7 is another example work schematic representation of the present invention.
For a more clear understanding of the present invention, the present invention is described in further detail below in conjunction with drawings and Examples.
Embodiment
Above-mentioned institute drawings attached constitutes the part of specification, makes it possible to more deep understanding all structures of the present invention, and explains principle of the present invention, and set forth the automatic regulatory function of discharge capacity how this device implements compressor.
The method of automatic adjusting used for automobile air conditioning scroll compressor output discharge capacity of the present invention, at first on the dish of the quiet whirlpool of scroll compressor, a pair of compression chamber by-pass hole is set, its position is between the air inlet by-pass hole of scroll compressor, be used for when discharge capacity is regulated, making the gas backstreaming of intermediate compression chamber, no longer compress; The pair of control valve is set then, so that can control the switching of a pair of compression chamber by-pass hole in the compression chamber by-pass hole; Spring is set controls valve core movement so that regulate automatically as the balance adjustment member.
This control valve is positioned at dish back, quiet whirlpool, be provided with the equalizing orifice that is communicated with exhaust cavity and air-inlet cavity respectively, there are piston, spring and end cap in control valve inside, simultaneously perception suction pressure and exhaust pressure of piston wherein, and move as balance adjustment member control piston with spring, regulate the aperture of by-pass hole with this, realize the automatic regulatory function of discharge capacity of compressor.
The compression chamber by-pass hole is offered the position and is wanted to guarantee that the fluid in the compression chamber is not by compression in bypass.
The compression chamber by-pass hole can guarantee can not influence the volume-variation of other air cavitys of scroll compressor.
Below be the specific embodiment that the inventor provides:
As Fig. 1, as seen when air-breathing end, the compression chamber by-pass hole is in the critical localisation of connection, if main shaft continues rotation, then the compression chamber by-pass hole is communicated with compression chamber, and compression chamber by-pass hole diameter otherwise understand in the compression process gas leak phenomenon takes place less than scrollwork wall thickness thickness.
Fig. 2 is the sectional view of control valve.Sectional view when Fig. 3 closes for the control valve erection drawing.Sectional view when Fig. 4 opens for control method erection drawing.
Situation below in conjunction with the work of description of drawings control valve.
As shown in Figure 3, when automobile was in the comparison slow-speed of revolution operation, this moment was because rotating speed is low, so exhaust pressure is less.Exhaust pressure is experienced on the control valve inner carrier left side, and suction pressure is experienced on the right.Because exhaust pressure is less, and the effect of spring force is arranged again, can't promote piston and move right, though this moment, the compression chamber by-pass hole was communicated with compression chamber, can't be communicated with the control valve air cavity, can't change the whole compressor oepration at full load by the realization capacity.
As shown in Figure 4, when automobile was in than the operation of higher rotating speed, this moment was because the rotating speed height, so exhaust pressure is higher.Exhaust pressure is experienced on the control valve inner carrier left side, and suction pressure is experienced on the right.Because exhaust pressure is higher, piston overcomes the effect of spring force, moves right, and the compression chamber by-pass hole is slowly opened.By structure as can be known, the control valve air cavity is connected with air-inlet cavity by the air-inlet cavity by-pass hole always.So when the compression chamber by-pass hole was opened, the gas of compression chamber just flow to air-inlet cavity by compression chamber by-pass hole, control valve air cavity, air-inlet cavity by-pass hole.The function of the capacity change that so just realizes.
Referring to Fig. 5 to Fig. 7, illustrated that another realization continuously changes the principle of capacity below.
As shown in Figure 5, need the control valve member of a circle, the compression chamber by-pass hole is opened near edge, and the aperture is not more than scrollwork thickness.Utilize the variation of exhaust pressure to promote this prototype valve member around its center of circle rotation.When the by-pass hole of round control valve compression chamber was in as Fig. 5 position, air-breathing end did not have gas bypass to air-inlet cavity, the whole compressor oepration at full load.
As shown in Figure 6, when the exhaust pressure increase, when compressor need change volume, exhaust pressure promotes the rotation of round control valve, and compression chamber bypass vacancy is in position as shown, and then breathing process just finishes during the strong by-pass hole of the inswept compression of scrollwork of moving vortex, aspirated volume diminishes, and realizes the varying capacity operation.
As shown in Figure 7, when exhaust pressure continued to increase, circular control valve continued to turn clockwise, the compression chamber by-pass hole arrives limit position shown in Figure 7, this position is exactly the maximum position that circular control valve is reconciled capacity, and this moment, compressor was gone out the lowest capacity operation, and breathing process finishes the latest.
Because multiple concrete manifestation form is arranged under the situation that does not deviate from spirit of the present invention or inner characteristic, so except as otherwise noted, be to be understood that the foregoing description is not limited to any details of above stated specification, and the explanation of broad sense within the spirit and scope that should in claim, stipulate.Therefore, the institute within the scope of claim changes, revises or replaces, and all belongs to the scope of protection of present invention.
Claims (5)
1. a method of regulating used for automobile air conditioning scroll compressor output discharge capacity automatically is characterized in that, comprises the following steps:
1) at first on the dish of the quiet whirlpool of scroll compressor a pair of compression chamber by-pass hole is set, its position is used for making the gas backstreaming of intermediate compression chamber when discharge capacity is regulated between the air inlet by-pass hole of scroll compressor, no longer compresses;
2) the pair of control valve is set in the compression chamber by-pass hole, the back side that coil in quiet whirlpool its position, and be provided with the equalizing orifice that is communicated with exhaust cavity and air-inlet cavity respectively, be used to control the switching of compression chamber by-pass hole; This control valve is by piston, and spring and end cap are formed, and piston wherein is used for that perception suction pressure and exhaust pressure are poor simultaneously, and with spring as the balance adjustment member, regulate the aperture of compression chamber by-pass hole automatically.
2. the method for claim 1 is characterized in that, described compression chamber by-pass hole is offered the position and wanted to guarantee that the fluid in the compression chamber is not by compression in bypass.
3. the method for claim 1 is characterized in that, described compression chamber by-pass hole can guarantee can not influence the volume-variation of other air cavitys of scroll compressor.
4. the method for claim 1 is characterized in that, the diameter of described compression chamber by-pass hole is less than the thickness of scrollwork wall thickness.
5. the method for claim 1 is characterized in that, described control valve can be controlled the aperture of compression chamber by-pass hole, to guarantee can realize within the limits prescribed continuous change discharge capacity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510022766 CN1793657A (en) | 2005-12-31 | 2005-12-31 | Method for autoregurating output displacement of vortex compressor for air conditioner of vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510022766 CN1793657A (en) | 2005-12-31 | 2005-12-31 | Method for autoregurating output displacement of vortex compressor for air conditioner of vehicle |
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| Publication Number | Publication Date |
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| CN1793657A true CN1793657A (en) | 2006-06-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200510022766 Pending CN1793657A (en) | 2005-12-31 | 2005-12-31 | Method for autoregurating output displacement of vortex compressor for air conditioner of vehicle |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012079270A1 (en) * | 2010-12-17 | 2012-06-21 | Jin Beibiao | High-efficiency return-flow type gas compressor |
| CN105089839A (en) * | 2014-05-12 | 2015-11-25 | 福特环球技术公司 | System and method for generating vacuum for a vehicle |
| CN105697369A (en) * | 2014-12-16 | 2016-06-22 | Lg电子株式会社 | Scroll compressor |
| CN112780541A (en) * | 2020-12-23 | 2021-05-11 | 加西贝拉压缩机有限公司 | Effective cylinder volume self-adaptive adjusting structure for refrigeration compressor |
| CN113027730A (en) * | 2021-03-02 | 2021-06-25 | 加西贝拉压缩机有限公司 | Low-voltage starting refrigeration compressor |
| CN113606136A (en) * | 2021-08-27 | 2021-11-05 | 珠海格力电器股份有限公司 | Compressor and air conditioner with same |
-
2005
- 2005-12-31 CN CN 200510022766 patent/CN1793657A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012079270A1 (en) * | 2010-12-17 | 2012-06-21 | Jin Beibiao | High-efficiency return-flow type gas compressor |
| CN105089839A (en) * | 2014-05-12 | 2015-11-25 | 福特环球技术公司 | System and method for generating vacuum for a vehicle |
| CN105089839B (en) * | 2014-05-12 | 2020-01-17 | 福特环球技术公司 | System and method for generating vacuum for a vehicle |
| CN105697369A (en) * | 2014-12-16 | 2016-06-22 | Lg电子株式会社 | Scroll compressor |
| US9869315B2 (en) | 2014-12-16 | 2018-01-16 | Lg Electronics Inc. | Scroll compressor having capacity varying valves |
| CN105697369B (en) * | 2014-12-16 | 2018-02-16 | Lg电子株式会社 | Scroll compressor |
| CN112780541A (en) * | 2020-12-23 | 2021-05-11 | 加西贝拉压缩机有限公司 | Effective cylinder volume self-adaptive adjusting structure for refrigeration compressor |
| CN113027730A (en) * | 2021-03-02 | 2021-06-25 | 加西贝拉压缩机有限公司 | Low-voltage starting refrigeration compressor |
| CN113606136A (en) * | 2021-08-27 | 2021-11-05 | 珠海格力电器股份有限公司 | Compressor and air conditioner with same |
| CN113606136B (en) * | 2021-08-27 | 2022-11-15 | 珠海格力电器股份有限公司 | Compressor and air conditioner with same |
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