CN2929262Y - Rotary compressor - Google Patents
Rotary compressor Download PDFInfo
- Publication number
- CN2929262Y CN2929262Y CN 200620061499 CN200620061499U CN2929262Y CN 2929262 Y CN2929262 Y CN 2929262Y CN 200620061499 CN200620061499 CN 200620061499 CN 200620061499 U CN200620061499 U CN 200620061499U CN 2929262 Y CN2929262 Y CN 2929262Y
- Authority
- CN
- China
- Prior art keywords
- groove
- cylinder
- slide block
- rotary compressor
- pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
This utility model discloses a rotary compressor, at least comprising a cylinder, a piston, a motor, a casing and a decompression venting slot arranged on the lateral surface of the cylinder, a channel communicating the decompression venting slot with the cylinder air intake tuck, a brake slipper, arranged in the venting slot, which moves along the venting slot, opens and closes the channel mouth to achieve connection or partition of the venting slot and the channel, a pressure change-over valve which is communicated with a venting slot back pressure cavity of the brake slipper outboard and controls movement of the brake slipper by changing pressure. This utility model is simple in structure, easy in assembling, can completely eliminate excess gap volume due to capacity adjustment under all-function pattern and under energy-saving pattern, prevent that the valve opens and closes once as the piston rotates one round, reducing noise and pressure loss of cylinder discharge, thereby achieving the effects of reducing opening and closing times of the air-conditioning compressor, improving energy efficiency ratio of the air conditioner and saving energy resource.
Description
Technical field
The utility model relates to compressor field, especially a kind of rotary compressor.
Background technique
As shown in Figure 1, 2, the single piston refrigeration compressor of existing constant volume comprises the parts of being made up of stator 1 and rotor 2 such as motor, housing 3, rotating shaft 4, upper bearing (metal) 5, cylinder 6, piston 8, lower bearing 9, traverse 10 and dividing plate spring 11.Wherein cylinder 6, upper bearing (metal) 5, lower bearing 9 and piston 8 form the volume of a sealing, traverse 10 and piston 8 are divided into two variable volumes to this volume, rotation along with offset piston 8, the size of two volumes changes, make gas compression, gas pressure reaches and backs down outlet valve by relief opening 12 after the exhaust pressure and begin exhaust.
For regulating compressor output, disclose a kind of technological scheme among the Chinese patent CN1712728A: by open a tap hole at cylinder wall, a spherical valve is set in the hole, valve is fixed by spring; When the valve back pressure was communicated with sucking pipe, along with the running of piston, gas pressure raise in the cylinder, when surpassing pressure of inspiration(Pi) and spring force sum, the valve ball is opened, and gas partly is discharged to sucking pipe in the cylinder, thereby the reduction compressor capacity, this pattern is called energy saver mode; When the valve back pressure was communicated with outlet pipe, inner pressure of air cylinder was lower than exhaust pressure and adds the spring force sum, and the valve ball is not opened, the all-round power running of compressor, and this pattern is called all-round pattern.Can control the ability of compressor by the Placement of control back pressure.But, there is following problem in the compressor of this structure:
1, under energy saver mode, the pressure that the interior gas of cylinder need be pushed pressure of inspiration(Pi) and spring open just can be discharged to sucking pipe, the loss of meeting build-up of pressure, this part gas need just can arrive sucking pipe through the longer pipe road simultaneously, and this also can cause the bigger pressure loss.
2, under energy saver mode, the piston revolution moves a week, and the valve ball needs closure once, can cause bigger noise.
3, under all-round pattern, though the valve ball can reduce clearance volume, can't remove clearance volume fully, this clearance volume is big more, and then the ability drop of compressor is big more, and the power of consumption is big more, and promptly the Energy Efficiency Ratio of compressor descends.
Summary of the invention
For addressing the above problem, the purpose of this utility model is to provide a kind of variable-displacement rotary compressor, all can eliminate clearance volume fully under the pattern, improves the compressor Energy Efficiency Ratio, under energy saver mode, reduces noise and reduces the pressure loss.
The purpose of this utility model is achieved in that a kind of rotary compressor, comprises cylinder, piston, motor and housing at least, it is characterized in that also comprising: the pressure release groove that is opened in described cylinder side; The passage that described pressure release groove and cylinder sucking pipe are communicated with; Be located in the above-mentioned groove, along groove move open and close that the passway realizes groove and channel connection or partition can make slide block; Be positioned at that the above-mentioned groove back pressure cavity that can make the slide block outside is communicated with, can make the pressure switching valve that slide block moves by the change pressure control.
Described groove and can make and be provided with the positioning element that the qualification that cooperatively interacts can be made the slide block the sphere of activities between the slide block.
Described pressure switching valve is by being connected with groove, can being communicated with sucking pipe or outlet pipe respectively by the pressure switching valve by tubulation by tubulation.
Described groove inner tank mouths is opened on the intakeport of piston sense of rotation and the cylinder side between the relief opening.
The utility model is simple in structure, assembling easily, can make slide block by back pressure control along what the cylinder groove slided, open and close the passway that is communicated with the cylinder sucking pipe on the groove sidewall, under all-round pattern, can eliminate fully because the clearance volume that capacity adjustment causes, under energy saver mode, avoid the moving slide block of making in a week of piston revolution to open and close the passway once, reduced noise, and the minimizing of the pressure loss of cylinder intermediate exhaust, thereby reach the on-off frequency that reduces air condition compressor, improve the Energy Efficiency Ratio of air-conditioning, save the effect of the energy.
Description of drawings
Fig. 1 is the compressor sectional view of prior art;
Fig. 2 is the compressor pump plan view of prior art;
Fig. 3 is a compressor pump plan view of the present utility model;
Fig. 4, Fig. 5 are respectively embodiment 1 all-round pattern lower compression pump body section figure and energy saver mode lower compression pump body section figure;
Fig. 6, Fig. 7 are respectively that embodiment 1 compressor pump is under all-round pattern and the partial enlarged drawing under the energy saver mode;
Fig. 8, Fig. 9 are respectively that embodiment 2 compressor pump is under all-round pattern and the partial enlarged drawing under the energy saver mode;
Figure 10 is the generalized section of the utility model pressure switching valve;
Figure 11 is embodiment 1 the stereogram that can make slide block;
Figure 12, Figure 13 are respectively the partial perspective view of embodiment's 2 compressor pumps, the partial perspective view of embodiment's 3 compressor pumps;
Figure 14 is an integral installation schematic representation of the present utility model;
Figure 15, Figure 16 are respectively the cylinder exhaust port inside pressure change curve of prior art and the all-round pattern of the utility model, the cylinder exhaust port inside pressure change curve of the utility model energy saver mode.
Embodiment
The utility model is a kind of variable-displacement rotary compressor, main constituent elements and assemble same prior art, the parts such as motor, housing 3, rotating shaft 4, upper bearing (metal) 5, cylinder 6, sucking pipe 7, piston 8, lower bearing 9, traverse 10 and dividing plate spring 11 that include outlet pipe 20 equally, form by stator 1 and rotor 2.
Shown in Fig. 3-5, offer a pressure release groove 18 in cylinder 6 sides, it radially runs through cylinder 6.Wherein, inner tank mouths be opened on cylinder 6 sides along the intakeport 7 of piston 8 sense of rotation and the position between the relief opening 12, the height that may command energy conservation of compressor efficient is set of this position, best, the groove inner tank mouths is opened in along piston sense of rotation and intakeport and is 90 °～270 ° position.Exterior notch is connected with energy tubulation 13.
Cell wall at groove 18 offers the passway that is communicated with cylinder sucking pipe 7 by passage 16, and is best, and this passway is opened in the cell wall near groove 18 inner tank mouths.Groove 18 and sucking pipe 7 is communicated with the passage 16 that gets up is located at compressor inside, best, passage 16 is located at the end face between cylinder 6 and the upper and lower bearing 5,9, end face at cylinder 6 end faces or bearing 5,9 all can, gas only need just can arrive sucking pipe through short segment pipe like this, and the pressure loss is less.In the present embodiment, passage 16 is located at cylinder 6 end faces.
Thereby be provided with in the groove 18 can along groove 18 slide open and close the connecting tube mouth of pipe can make slide block 14, the size of groove 18 with can make slide block 14 couplings.In the present embodiment, the inside and outside notch of groove 18 is consistent with the channel sized shape that energy supply system slide block 14 slides.Exceed and make slide block 14 the sphere of activities surely, at groove 18 and can make be provided with between the slide block 14 cooperatively interact positioning element.In the present embodiment, positioning element is included in the restriction bar 15 of groove 18 cell wall settings and can making the groove 141 (as Figure 11) that is provided with on the slide block 14, and this groove 141 is corresponding to the position of restriction bar 15, and width is greater than restriction bar 15, both activity clampings.The shift motion that positioning element can be made slide block 14 is controlled between the position of leaving the passway fully and the position that covers the passway fully (as Fig. 6, Fig. 7) at least, is unlikely to skid off groove 18.In the time making slide block 14 and cover the passway fully, its inner side surface moves to the inner tank mouths of groove 18, can form continuous cylndrical surface with cylinder 6 internal surfaces, to reduce the collision loss of air-flow and groove 18 inner tank mouths.
Can make slide block 14 and move, the refrigerating capacity that the height of control back pressure can be regulated compressor by the pressure control of the back pressure cavity 17 in the outside.Can make slide block 14 by control and move on the plane, passway and make the connecting tube mouth of pipe open wide or be capped, can remove clearance volume fully, the Energy Efficiency Ratio of compressor improves, and noise reduces.
As shown in figure 14, back pressure cavity 17 is connected with energy tubulation 13 by the groove exterior notch, can be connected with outlet pipe 20 with sucking pipe 7 respectively by pressure switching valve 23 by tubulation 13, as Figure 10, by pilot pressure switching valve 23, switching working mode, be that may command back pressure cavity 17 pressure are pressure of inspiration(Pi) or exhaust pressure, the refrigerating capacity that effective swept volume of adjustment compressor pump is regulated compressor makes compressor have 2 mode of operations, promptly all-round pattern and energy saver mode, all can maximum ability be arranged pattern lower compression facility, have the part ability under the energy saver mode, more than 2 patterns by pressure switching valve 23 controls that are connected in the compressor outside, control is simple.Operating principle:
The utility model is built-in with the release groove 18 that can make slide block 14 by be provided with one in the pump body compression neutral position on the basis of present common single piston compressor pump housing, groove 18 is communicated with cylinder sucking pipe 7 by passage 16.As shown in Figure 3, piston 8 is α 1 from the stroke distances that sucking pipe 7 mouths of pipe go to relief opening 12, and piston 8 is α 2 from the stroke distances that sucking pipe 7 mouths of pipe go to release groove 18 inner tank mouths.
When the pressure of back pressure cavity 17 during greater than the pressure in the cylinder, can make slide block 14 moves to cylinder 6 central directions, the position of moving is limited by positive stop strip 15, head end and cylinder 6 inwalls that finally can make slide block 14 constitute a continuous cylndrical surface, passage 16 was disconnected with being connected of cylinder 6 internal volumes, in the rotation of piston 8 (whole α 1 distance), gas in the cylinder 6 all is in compressive state, as Fig. 4 and shown in Figure 6, this moment, the running of the pump housing was identical with general single piston compressor, and this pattern is all-round pattern.
Under energy saver mode, gas only need just can be discharged to sucking pipe 7 greater than back pressure cavity 17 pressure in the cylinder 6, reduced and also must overcome the loss that spring pressure causes in the prior art, and avoided piston 8 revolutions moving can make in a week slide block 14 just open and close connecting tube the mouth of pipe once.When back pressure cavity 17 pressure are lower than cylinder 6 internal pressures, can make slide block 14 and outwards move to and open the passway, swept volumes are connected with sucking pipe 7 by passage 16 in this moment cylinder 6, as Fig. 5 and shown in Figure 7.Before piston 8 turns to α 2 distances, swept volume is communicated with release groove 18 inner tank mouths, portion gas enters sucking pipe 7 by passage 16, gas pressure can not raise in the cylinder 6, after piston 8 turns over release groove 18 inner tank mouths positions, real compression begins, and gas pressure reaches and backs down outlet valve by relief opening 12 after the exhaust pressure and begin exhaust; The swept volume of compressor is α 2/ α 1 * 100% under the all-round pattern at this moment, and ability also is reduced to α 2/ α 1 * 100% under the all-round pattern, and this pattern is an energy saver mode.
When pressure switching valve 23 is moved to the left, can be communicated with outlet pipe 20 by tubulation 13, pressure in the back pressure cavity 17 is exhaust pressure, back pressure cavity 17 internal pressures are greater than cylinder 6 internal pressures, can make slide block 14 and move the closing passage mouth to cylinder 6 centers, this state lower compression facility have whole abilities, are exactly all-round pattern, as shown in figure 15.
When switch pressure switching valve 23 moves right, can be communicated with sucking pipe 7 by tubulation 14, pressure in the back pressure cavity 17 is pressure of inspiration(Pi), inner pressure of air cylinder begins to raise during piston 8 rotations, at this moment inner pressure of air cylinder is greater than pressure of inspiration(Pi), inner pressure of air cylinder is greater than back pressure cavity 17 pressure, slide block 14 moves laterally until opening the passway, the cylinder internal volume is connected with sucking pipe 7 by passage 16, inner pressure of air cylinder can not continue to raise, and real compression just begins after piston 8 turns over release groove 18 inner tank mouths positions, and inner pressure of air cylinder changes as shown in figure 16, pump housing real work angular range dwindles, be that swept volume is dwindled, the pump housing rotates a circle, and air displacement reduces, the ability of compressor reduces, and this pattern is an energy saver mode.
As shown in figure 12, thus groove 18 ' in be provided with can along groove 18 ' slip open and close the passway can make slide block 14.In the present embodiment, groove 18 ' inside and outside notch less than making slide block 14, the size of the passage that middle part energy supply system slide block 14 slides then with can make slide block 14 couplings, thereby at groove 18 ' inside and outside retaining wall of interior formation, define the passage length of energy supply system slide block 14 slips.Distance suitable between the inside and outside retaining wall is set, can be construed as limiting the positioning element that to make slide block 14 the sphere of activities, need not additionally be provided with.
In the present embodiment, for better qualification can be made slide block 14 the sphere of activities, at groove 18 ' and can make and still be provided with the positioning element that cooperatively interacts between the slide block 14.Positioning element is included in groove (being located at upper bearing (metal) 5 bottom ends) that groove 18 cell walls are provided with and at the restriction bar 15 that can make the projection that is provided with on the slide block 14, this restriction bar 15 is corresponding to the position of groove 18 grooves, and recess width is greater than restriction bar 15, both activity clampings.The shift motion that positioning element can be made slide block 14 is controlled between the position of leaving the connecting tube mouth of pipe fully and the position that covers the connecting tube mouth of pipe fully (as Fig. 8, Fig. 9) at least.
Other structures are with embodiment 1.
As shown in figure 13, thus groove 18 ' in be provided with can along groove 18 ' slip open and close the connecting tube mouth of pipe can make slide block 14.In the present embodiment, groove 18 ' inside and outside notch less than making slide block 14, the size of the passage that middle part energy supply system slide block 14 slides then with can make slide block 14 couplings, thereby at groove 18 ' inside and outside retaining wall of interior formation, define the passage length of energy supply system slide block 14 slips.In the present embodiment, for better qualification can be made slide block 14 the sphere of activities, at groove 18 ' and can make and be provided with the positioning element that cooperatively interacts between the slide block 14.Positioning element be included in the setting of groove 18 ' cell wall projection restriction bar 15 and can make on the slide block 14 groove that is provided with, this groove is corresponding to the position of restriction bar 15, and width is greater than restriction bar 15, both activity clampings.
Other structures are with embodiment 1.
Claims (10)
1. a rotary compressor comprises cylinder, piston, motor and housing at least, it is characterized in that also comprising:
-be opened in the pressure release groove of described cylinder side;
-passage that described pressure release groove and cylinder sucking pipe are communicated with;
-be located in the above-mentioned groove, along groove move open and close that the passway realizes groove and channel connection or partition can make slide block;
-be positioned at that the above-mentioned groove back pressure cavity that can make the slide block outside is communicated with, can make the pressure switching valve that slide block moves by the change pressure control.
2. a kind of rotary compressor according to claim 1 is characterized in that: described pressure release groove and can make and be provided with the positioning element that the qualification that cooperatively interacts can be made the slide block the sphere of activities between the slide block.
3. a kind of rotary compressor according to claim 2, it is characterized in that: described positioning element is included in the restriction bar of pressure release groove cell wall setting and can making the groove that slide block is provided with on corresponding to this restriction bar position, this recess width is greater than restriction bar, both activity clampings.
4. a kind of rotary compressor according to claim 2, it is characterized in that: described positioning element comprises the groove that is arranged at pressure release groove cell wall and can make the restriction bar that slide block is provided with on corresponding to this groove location, this recess width is greater than restriction bar, both activity clampings.
5. a kind of rotary compressor according to claim 1 is characterized in that: described pressure switching valve is by being connected with the pressure release groove, can being communicated with sucking pipe or outlet pipe respectively by the pressure switching valve by tubulation by tubulation.
6. a kind of rotary compressor according to claim 1 is characterized in that: the inner tank mouths of described pressure release groove is opened on the intakeport of piston sense of rotation and the cylinder side between the relief opening.
7. a kind of rotary compressor according to claim 6 is characterized in that: the inner tank mouths of described pressure release groove is opened in along piston sense of rotation and intakeport and is 90 °～270 ° position.
8. a kind of rotary compressor according to claim 1 is characterized in that: described passage is located at compressor inside.
9. a kind of rotary compressor according to claim 8 is characterized in that: described passage is located at cylinder end face or bearing face.
10. a kind of rotary compressor according to claim 1 is characterized in that: described can make slide block and move to groove inner tank mouths position the time, its inner side surface and cylinder surfaces form continuous cylndrical surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620061499 CN2929262Y (en) | 2006-07-11 | 2006-07-11 | Rotary compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620061499 CN2929262Y (en) | 2006-07-11 | 2006-07-11 | Rotary compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2929262Y true CN2929262Y (en) | 2007-08-01 |
Family
ID=38307645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620061499 Expired - Lifetime CN2929262Y (en) | 2006-07-11 | 2006-07-11 | Rotary compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2929262Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678556A (en) * | 2012-05-11 | 2012-09-19 | 深圳市福瑞客科技有限公司 | Compressor and air charging device |
| CN105201828A (en) * | 2015-10-14 | 2015-12-30 | 珠海凌达压缩机有限公司 | Roller and rotary compressor with same |
| CN110307155A (en) * | 2019-08-07 | 2019-10-08 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of compressor becomes cylinder structure and compressor |
| CN111794972A (en) * | 2020-07-27 | 2020-10-20 | 广东美芝制冷设备有限公司 | Cylinder assembly, compressor and refrigeration equipment |
-
2006
- 2006-07-11 CN CN 200620061499 patent/CN2929262Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678556A (en) * | 2012-05-11 | 2012-09-19 | 深圳市福瑞客科技有限公司 | Compressor and air charging device |
| CN102678556B (en) * | 2012-05-11 | 2016-04-06 | 深圳市福瑞客科技有限公司 | A kind of compressor and inflator |
| CN105201828A (en) * | 2015-10-14 | 2015-12-30 | 珠海凌达压缩机有限公司 | Roller and rotary compressor with same |
| CN110307155A (en) * | 2019-08-07 | 2019-10-08 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of compressor becomes cylinder structure and compressor |
| CN111794972A (en) * | 2020-07-27 | 2020-10-20 | 广东美芝制冷设备有限公司 | Cylinder assembly, compressor and refrigeration equipment |
| WO2022021731A1 (en) * | 2020-07-27 | 2022-02-03 | 广东美芝制冷设备有限公司 | Cylinder assembly, compressor, and refrigeration device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202851355U (en) | Single-stage and double-stage interchangeable double-cylinder compressor | |
| CN102644596B (en) | Capacity control type rotary compressor | |
| CN2929262Y (en) | Rotary compressor | |
| CN105927540B (en) | Be vortexed rotary multistage capacitance-variable capacity compressor | |
| CN103557159B (en) | Rotary compressor | |
| CN106050663B (en) | Positive displacement compressor and air-conditioning system | |
| CN102889210B (en) | Double-cylinder double-mode compressor | |
| CN101344089B (en) | Multi-cylinder rotary compressor | |
| CN202707496U (en) | Variable-capacity rotary compressor | |
| CN103161729A (en) | A rotary compressor and an air conditioner | |
| CN100494686C (en) | Rotary fluid machine | |
| WO2019119923A1 (en) | Pump assembly and compressor | |
| CN207830127U (en) | The compression mechanism of screw compressor | |
| CN108331755B (en) | Pump body assembly and compressor with same | |
| CN109058107B (en) | Sealed rotary compressor and control method thereof | |
| CN204312328U (en) | Twin-tub rotation-type compressor and there is its refrigeration plant | |
| CN210317754U (en) | Compressor variable volume structure, compressor and refrigeration cycle device | |
| CN110671327B (en) | Double-cylinder variable-capacity compressor and control method | |
| CN100441875C (en) | Rotary compressor | |
| CN207813941U (en) | Pump body subassembly and compressor | |
| CN100425840C (en) | Smart control valve for compressors | |
| CN208330733U (en) | Compressor with rolling rotor of the twin-tub with second vapor injection | |
| JPS6346714Y2 (en) | ||
| CN203548212U (en) | Rotating compressor | |
| JPH0147638B2 (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070801 |
|
| EXPY | Termination of patent right or utility model |