CN202250864U - Two-stage variable-capacity rotary compressor and air-conditioning system thereof - Google Patents
Two-stage variable-capacity rotary compressor and air-conditioning system thereof Download PDFInfo
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- CN202250864U CN202250864U CN2011202559568U CN201120255956U CN202250864U CN 202250864 U CN202250864 U CN 202250864U CN 2011202559568 U CN2011202559568 U CN 2011202559568U CN 201120255956 U CN201120255956 U CN 201120255956U CN 202250864 U CN202250864 U CN 202250864U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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Abstract
The utility model provides a two-stage variable-capacity rotary compressor, which comprises a mounting plate, a lower cover, a shell, an upper cover assembly, a motor, a cylinder assembly, an eccentric compression roller and a backflow separator. The cylinder assembly comprises a cylinder and an upper flange as well as a lower flange arranged at two ends of the cylinder; the upper flange and the lower flange are respectively provided with an upper muffler and a lower muffler; the cylinder wall is provided with a plunger hole which is parallel with an axis of the eccentric compression roller and communicated with an air suction low pressure cavity of the cylinder; a control hole communicated with the plunger hole is arranged aside the plunger hole; a plunger interface and a control interface respectively communicated with the plunger hole and the control hole are arranged radially on the cylinder wall of the cylinder assembly; a variable-capacity communicating pipe is connected between an upper end port of the backflow separator and the plunger interface; the plunger hole is internally provided with a plunger and a spring which mutually support against; the other end of the spring is abutted to the lower flange; and the other end of the plunger is abutted to the upper flange.
Description
[technical field]
The utility model relates to technical field of refrigeration compressors, relates in particular to a kind of twin-stage varying capacity rotary compressor.
[background technique]
Energy-conserving and environment-protective are development trends of present air conditioner industry, and along with improving constantly of air-conditioning efficiency grade, when pursuing higher refrigeration efficiency ratio, air-conditioning generally has and heats a not enough difficult problem, and meanwhile, air conditioner user also increases to the requirement of heating capacity.
During a kind of situation that occurs, in the cold north of China, because outdoor temperature is lower, the heating capacity of air-conditioning is reduced, heating effect weakens, and can not satisfy user's the demand that heats; And present rotary compressor is in order to satisfy the actual user demand of air-conditioning; Motor generally adopts converter technique; Utilize variable-frequency motor to make the change of compressor rotary speed; The variation that the realization compressor capacity is exported, with the demand that satisfied minimum is freezed, freeze in the centre, maximum is freezed and heated, but the compressor cost of employing converter technique is than higher; Control mode is complicated, presses for a kind of frequency-changeable compressor technology that can replace with the rotary compressor control technique of big transfiguration, little transfiguration, not transfiguration and satisfies the actual demand of user.
Another kind of situation is; At present certain areas exist ELV (130V～150V/50Hz) or the severe environmental conditions of ultra-high temperature (T3 operating mode); Require compressor can possess wideer operating voltage and stronger capability of overload; Require the operating voltage of conventional compressor lower wideer, also can adapt to higher worse high-temperature work environment.
[model utility content]
The utility model first goal of the invention provides that a kind of control mode is simple, cost performance satisfies users' demand, and the twin-stage varying capacity rotary compressor of different transfiguration work can be provided.
The utility model second goal of the invention provides that a kind of control mode is simple, cost performance satisfies users' demand, can be with the air-conditioning system of big transfiguration, little transfiguration or not transfiguration work.
The utility model the 3rd goal of the invention provides that a kind of control mode is simple, cost performance satisfies users' demand, can make the operating voltage of conventional compressor lower wideer, can adapt to the air-conditioning system of higher worse hot environment work.
For reaching first goal of the invention, adopt following technological scheme:
A kind of twin-stage varying capacity rotary compressor; Comprise mounting plate, lower cover, housing, cover assembly, motor, housing assembly, eccentric compression roller and backflow liquor separator; Housing assembly comprises that cylinder and lid are located at the upper flange at cylinder two ends, lower flange; Be respectively fitted with baffler and bottom silencer on the upper and lower flange, housing assembly is fixed in the housing, and the bent axle of motor drives the eccentric compression roller that is arranged in the cylinder and rotates; In the lower end of motor bent axle the endoporus oil duct that is connected to oil sump is arranged, be horizontally arranged with the spiral Oil Guide sheet that is connected to eccentric compression roller on the endoporus oil duct; Offer on the said cylinder wall and the axis parallel of eccentric compression roller and the plunger hole that is communicated with the air-breathing low pressure chamber of cylinder, offer the control hole that is communicated with it in the plunger hole side; Said plunger hole is to be initial 0 degree with the spiral Oil Guide sheet center on the cylinder in the position on the cylinder wall, locates to be provided with along 115 °～135 ° of cylinder outer wall rotations; Radially offer plunger interface, the control interface that is communicated with respectively with plunger hole, control hole at the cylinder wall of housing assembly; Be connected with transfiguration connecting tube between the upper end-hole of said backflow liquor separator and the plunger interface; Installation is replaced each other in the said plunger hole plunger and spring, the other end of its medi-spring is resisted against on the lower flange, and the other end of plunger is resisted against on the upper flange.
On the said upper and lower flange corresponding respectively be provided with cylinder on plunger hole the upper flange slot to make way, the lower flange spring base hole that are communicated with.
Offer the ring-type connectivity slot that can be communicated with on the said plunger with the air-breathing low pressure chamber and the control hole of cylinder.
The end of said plunger offers the spring groove that cooperates with said spring.
For reaching second goal of the invention, adopt following technological scheme:
A kind of air-conditioning system of twin-stage varying capacity rotary compressor; This system comprises said twin-stage varying capacity rotary compressor, four-way valve, indoor side heat exchanger, throttle mechanism and the outdoor heat exchanger that connects successively; Said compressor flows between upper end-hole and the plunger interface of liquor separator and be connected with transfiguration connecting tube last time; Between the control interface of the relief opening of compressor and compressor, control valve is installed, said control valve is heated by float amount refrigerating capillary, big discharge capacity refrigerating capillary and maximum and is connected in series solenoid valve again behind the capillary paralleling and forms.
For reaching the 3rd goal of the invention, adopt following technological scheme:
A kind of air-conditioning system of twin-stage varying capacity rotary compressor; This system comprises said twin-stage varying capacity rotary compressor, four-way valve, indoor side heat exchanger, throttle mechanism and the outdoor heat exchanger that connects successively; Said compressor flows between upper end-hole and the plunger interface of liquor separator and be connected with transfiguration connecting tube last time; The control interface of compressor is equipped with the control valve that is communicated with respectively with the upper end-hole of the relief opening of compressor, backflow liquor separator, and control valve is made up of three-way control valve and the pipeline that is connected in three-way control valve input end and output terminal.
The advantage of the utility model:
The utility model is opened a through hole through the single cylinder cylinder compression chamber at compressor, connects the backflow liquor separator, slide block type switch of design on the return flow line; One reducible plunger promptly is installed on passage, is utilized the pressure reduction of intakeport low pressure formation of pressurized gas and the cylinder of exhaust outlet of compressor, control the motion of plunger; The elastic force that cooperates spring simultaneously makes plunger can decide to go up in place, the flow that control cylinder refluxes; Realize the twin-stage transfiguration, when pursuing higher refrigeration efficiency ratio, the air-conditioning system that overcomes in the second invention order heats deficiency; Satisfy the raising of air conditioner user to the heating capacity requirement, the performance requirement that take into account refrigeration, heats, daytime is with refrigeration in the middle of the big discharge capacity; The sleep in evening is with the minimum refrigerated energy-saving of little discharge capacity, and special circumstances adopt maximum refrigeration, realizes minimum refrigeration, middle refrigeration, maximum refrigeration and heats control mode; Reach the practical use of taking into account frequency-changeable compressor; Can promote heating capacity again when ensureing the refrigeration efficiency ratio, cost is lower than frequency-changeable compressor, and control mode is also simple relatively.
To the air-conditioning system in the 3rd invention order, the design variable conpacitance compressor is through changing compressor displacement; Reduce pump housing load, thereby reduce Motor torque, motor power consumption descends or satisfies the low voltage running; Finally reach compressor and can satisfy normally operation under low voltage or the high ambient conditions, the normal function of performance air-conditioning system can be under the working condition of conventional 220V/50Hz; Compressor can normally move about 185V, and the compressor of T3 operating mode can normally move about 155V, adopts the varying capacity technology; Overcome the severe environmental conditions that certain areas exist ELV or ultra-high temperature; Compressor and air-conditioning system can normally be moved, and such air-conditioning system can adapt to wideer operating voltage or wideer ambient temperature, under normal voltage or the ambient temperature; Adopt big discharge capacity, compressor and system's oepration at full load; Under the ambient temperature of ELV or superelevation; Adopt little discharge capacity (about capacity rating 60～70%); Make the motor of compressor can bear lower voltage or possess stronger capability of overload; Use the air-conditioning system of this variable conpacitance compressor can be competent at, can make the operating voltage of conventional compressor lower wideer, also can adapt to higher worse hot environment in the place of special voltage and environment.
[description of drawings]
Fig. 1 is the utility model section assembling schematic representation;
Fig. 2 is the revolved section structural representation of Fig. 1;
Fig. 3 is the schematic cross-section of the cylinder of the utility model;
Fig. 4 is an A-A generalized section among Fig. 3;
Fig. 5 is a B-B generalized section among Fig. 3;
Fig. 6 is the schematic representation of plunger when maximum transfiguration on the utility model cylinder;
Fig. 7 is the schematic representation of plunger when minimum transfiguration on the utility model cylinder;
Fig. 8 is the schematic representation of plunger when not transfiguration on the utility model cylinder;
Fig. 9 is a kind of air-conditioning system fundamental diagram of the utility model;
Figure 10 is the another kind of air-conditioning system fundamental diagram of the utility model;
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
[embodiment]
Extremely shown in Figure 8 like Fig. 1; A kind of twin-stage varying capacity rotary compressor; Comprise housing 3, cover assembly (not shown), motor (not shown), housing assembly 6, eccentric compression roller 65 ' and backflow liquor separator 7; Housing assembly 6 comprise cylinder 60 ' and lid be located at upper flange 63, the lower flange 64 at cylinder 60 ' two ends; Be respectively fitted with baffler 67 and bottom silencer 68 on the upper and lower flange (63,64), housing assembly 6 is fixed in the housing 3, and the bent axle 50 of motor drives and is arranged on cylinder 60 ' interior eccentric compression roller 65 ' rotation; In the lower end of motor bent axle 50 the endoporus oil duct 18 that is connected to oil sump 17 is arranged, be horizontally arranged with on the endoporus oil duct 18 be connected to eccentric compression roller 65 ' spiral Oil Guide sheet 19; Said cylinder 60 ' wall on offer with eccentric compression roller 65 ' axis parallel and with cylinder 60 ' the plunger hole 600 that is communicated with of air-breathing low pressure chamber 20 ', offer the control hole 620 that is communicated with it in plunger hole 600 ' side; Said plunger hole 600 ' the position on the cylinder wall be with cylinder 60 ' on spiral Oil Guide sheet 19 centers be initial 0 °, locate to be provided with along 115 °～135 ° of cylinder outer wall rotations; The cylinder wall of housing assembly 6 radially offer with plunger hole 600 ', the plunger interface 601 that is communicated with respectively of control hole 620 ', control interface 621; The upper end-hole of said backflow liquor separator 7 and plunger interface 601 ' between be connected with transfiguration connecting tube 8; Control interface 621 at compressor is connected with control valve 9; At the plunger 10 and spring 11 that plunger hole 600 ' interior installation is replaced each other; The other end of its medi-spring 11 is resisted against on the lower flange 64; The other end of plunger 10 is resisted against on the upper flange 63; On plunger 10, offer the ring-type connectivity slot 100 that can be communicated with the air-breathing low pressure chamber and the control hole 620 of cylinder; The end of plunger 10 offers the spring groove 101 that cooperates with said spring 11, plunger 10 and spring 11 according to the pressure reduction of pressurized gas after regulating in the control valve 9 and the low-pressure gas of transfiguration connecting tube 8 in plunger hole 600 ' interior action.
Continue as Fig. 3 to shown in Figure 8, on the upper and lower flange (63,64) respectively correspondence be provided with cylinder 60 ' on plunger hole 600 ' be communicated with upper flange slot to make way 630 ', lower flange spring base hole 640.
As shown in Figure 9; Said compressor 12 can with the supporting use of air-conditioning system; Said air-conditioning system comprises twin-stage varying capacity rotary compressor 12, four-way valve 13, indoor side heat exchanger 14, throttle mechanism 15 and the outdoor heat exchanger 16 that connects successively; Said compressor flow for 12 last times upper end-hole and the plunger interface 601 of liquor separator 7 ' between be connected with transfiguration connecting tube 8, between the control interface 621 of the relief opening of compressor 12 and compressor 12, control valve 9 is installed, control valve 9 is heated by float amount refrigerating capillary 90, big discharge capacity refrigerating capillary 91 and maximum and is connected in series solenoid valve 93 again after capillary tube 92 parallel connections and forms; During this air-conditioning system work; When control valve 9 is high pressure, regulate solenoid valve 93 and make high pressure only pass through float amount refrigerating capillary 90, make control valve 9 pressure near compressor 12 intakeport low pressure; Transfiguration connecting tube 8 opens in a large number, realizes the minimum injection rate refrigeration; Make high pressure only through excessive discharge capacity refrigerating capillary 91 when regulating solenoid valve 93, make control valve 9 pressure be higher than compressor 12 intakeport pressure, transfiguration connecting tube 8 opens in a small amount, discharge capacity refrigeration in the middle of realizing; Make high pressure only heat pipe 92 through maximum when regulating solenoid valve, high pressure leads directly to compressor 12, and control valve 9 pressure equal compressor 12 relief opening high pressure, and transfiguration connecting tube 8 closes, and realizes that maximum pump discharge heats.This air-conditioning system connects backflow liquor separator 7 through opening a through hole at the cylinder of compressor compression chamber, slide block type switch of design on the return flow line; One reducible plunger promptly is installed on passage, is utilized the pressure reduction of intakeport low pressure formation of pressurized gas and the cylinder of exhaust outlet of compressor, control the motion of plunger; The elastic force that cooperates spring simultaneously; Make plunger can decide to go up in place, the flow that control cylinder refluxes is realized the twin-stage transfiguration.
Shown in figure 10; Another air-conditioning system of the utility model; Said air-conditioning system comprises single cylinder twin-stage varying capacity rotary compressor 12, four-way valve 13, indoor side heat exchanger 14, throttle mechanism 15 and the outdoor heat exchanger 16 that connects successively; Said compressor flow for 12 last times upper end-hole and the plunger interface 601 of liquor separator 7 ' between be connected with transfiguration connecting tube 8; Control interface 621 at compressor 12 is equipped with control valve 9, and control valve 9 is communicated with a three-way control valve 17, and the output terminal of three-way control valve 17 is communicated with the relief opening of 12 compressors and the upper end-hole of backflow liquor separator 7 respectively through pipeline.
Under normal voltage or ambient temperature; Three-way control valve 17 makes the relief opening of compressor 12 be communicated with the control interface 621 of compressor 12 through control valve 9; High pressure leads directly to compressor 12, and control valve 9 pressure equal compressor 12 relief opening high pressure, and transfiguration connecting tube 8 closes; Realize maximum pump discharge, compressor and system's oepration at full load; When under the ambient temperature of ELV or superelevation; Three-way control valve 17 is communicated with the control interface 621 of compressor 12 through the upper end-hole that control valve 9 makes compressor flow liquor separator 7 12 last times; Make control valve 9 pressure near compressor 12 intakeport low pressure; Transfiguration connecting tube 8 opens in a large number, realizes the minimum injection rate refrigeration; Adopt such control mode; Overcome the severe environmental conditions that certain areas exist ELV or ultra-high temperature; Compressor and air-conditioning system can normally be moved, and such air-conditioning system can adapt to wideer operating voltage or wideer ambient temperature, under normal voltage or the ambient temperature; Adopt big discharge capacity, compressor and system's oepration at full load; Under the ambient temperature of ELV or superelevation; Adopt little discharge capacity (about capacity rating 60～70%); Make the motor of compressor can bear lower voltage or possess stronger capability of overload, the air-conditioning system of this variable conpacitance compressor can be competent in the place of special voltage and environment.
Certainly; The technical conceive of the utility model is not limited in above-mentioned case study on implementation; Can also obtain many different concrete schemes according to the design of the utility model; Doing conspicuous change according to the prompting of the foregoing description, and other every changes that do not break away from the utility model essence, all should be included within the described scope of claim.
Claims (6)
1. twin-stage varying capacity rotary compressor; Comprise mounting plate, lower cover, housing, cover assembly, motor, housing assembly, eccentric compression roller and backflow liquor separator; Housing assembly comprises that cylinder and lid are located at the upper flange at cylinder two ends, lower flange; Be respectively fitted with baffler and bottom silencer on the upper and lower flange, housing assembly is fixed in the housing, and the bent axle of motor drives the eccentric compression roller that is arranged in the cylinder and rotates; In the lower end of motor bent axle the endoporus oil duct that is connected to oil sump is arranged, be horizontally arranged with the spiral Oil Guide sheet that is connected to eccentric compression roller on the endoporus oil duct; It is characterized in that:
Offer on the said cylinder wall and the axis parallel of eccentric compression roller and the plunger hole that is communicated with the air-breathing low pressure chamber of cylinder, offer the control hole that is communicated with it in the plunger hole side;
Said plunger hole is to be initial 0 degree with the spiral Oil Guide sheet center on the cylinder in the position on the cylinder wall, locates to be provided with along 115 °～135 ° of cylinder outer wall rotations;
Radially offer plunger interface, the control interface that is communicated with respectively with plunger hole, control hole at the cylinder wall of housing assembly;
Be connected with transfiguration connecting tube between the upper end-hole of said backflow liquor separator and the plunger interface;
Installation is replaced each other in the said plunger hole plunger and spring, the other end of its medi-spring is resisted against on the lower flange, and the other end of plunger is resisted against on the upper flange.
2. a kind of twin-stage varying capacity rotary compressor according to claim 1 is characterized in that, on the said upper and lower flange corresponding respectively be provided with cylinder on plunger hole the upper flange slot to make way, the lower flange spring base hole that are communicated with.
3. a kind of twin-stage varying capacity rotary compressor according to claim 1 is characterized in that, offers the ring-type connectivity slot that can be communicated with the air-breathing low pressure chamber and the control hole of cylinder on the said plunger.
4. a kind of twin-stage varying capacity rotary compressor according to claim 1 is characterized in that the end of said plunger offers the spring groove that cooperates with said spring.
5. use the air-conditioning system of claim 1 or 2 or 3 or 4 described a kind of twin-stage varying capacity rotary compressors; It is characterized in that; This system comprises said twin-stage varying capacity rotary compressor, four-way valve, indoor side heat exchanger, throttle mechanism and the outdoor heat exchanger that connects successively; Said compressor flows between upper end-hole and the plunger interface of liquor separator and be connected with transfiguration connecting tube last time; Between the control interface of the relief opening of compressor and compressor, control valve is installed, said control valve is heated by float amount refrigerating capillary, big discharge capacity refrigerating capillary and maximum and is connected in series solenoid valve again behind the capillary paralleling and forms.
6. use the air-conditioning system of claim 1 or 2 or 3 or 4 described a kind of twin-stage varying capacity rotary compressors; It is characterized in that; This system comprises said twin-stage varying capacity rotary compressor, four-way valve, indoor side heat exchanger, throttle mechanism and the outdoor heat exchanger that connects successively; Said compressor flows between upper end-hole and the plunger interface of liquor separator and be connected with transfiguration connecting tube last time; The control interface of compressor is equipped with the control valve that is communicated with respectively with the upper end-hole of the relief opening of compressor, backflow liquor separator, and control valve is made up of three-way control valve and the pipeline that is connected in three-way control valve input end and output terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202559568U CN202250864U (en) | 2011-07-19 | 2011-07-19 | Two-stage variable-capacity rotary compressor and air-conditioning system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202559568U CN202250864U (en) | 2011-07-19 | 2011-07-19 | Two-stage variable-capacity rotary compressor and air-conditioning system thereof |
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| Publication Number | Publication Date |
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| CN202250864U true CN202250864U (en) | 2012-05-30 |
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| CN2011202559568U Expired - Lifetime CN202250864U (en) | 2011-07-19 | 2011-07-19 | Two-stage variable-capacity rotary compressor and air-conditioning system thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102748293A (en) * | 2012-06-07 | 2012-10-24 | 珠海格力电器股份有限公司 | Variable-stage or variable-cylinder variable displacement compressor and control method thereof |
| CN102889210A (en) * | 2012-09-18 | 2013-01-23 | 珠海格力电器股份有限公司 | Double-cylinder and double-mode compressor |
| CN104314824A (en) * | 2014-11-07 | 2015-01-28 | 广东美芝制冷设备有限公司 | Compressor and air conditioning system provided with same |
| CN105782041A (en) * | 2016-04-28 | 2016-07-20 | 珠海格力节能环保制冷技术研究中心有限公司 | Multi-stage compressor, air conditioner system and control method of multi-stage 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 |
-
2011
- 2011-07-19 CN CN2011202559568U patent/CN202250864U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102748293A (en) * | 2012-06-07 | 2012-10-24 | 珠海格力电器股份有限公司 | Variable-stage or variable-cylinder variable displacement compressor and control method thereof |
| CN102748293B (en) * | 2012-06-07 | 2015-01-28 | 珠海格力电器股份有限公司 | Variable-stage or variable-cylinder variable displacement compressor and control method thereof |
| CN102889210A (en) * | 2012-09-18 | 2013-01-23 | 珠海格力电器股份有限公司 | Double-cylinder and double-mode compressor |
| CN102889210B (en) * | 2012-09-18 | 2015-06-17 | 珠海格力电器股份有限公司 | Double-cylinder and double-mode compressor |
| CN104314824A (en) * | 2014-11-07 | 2015-01-28 | 广东美芝制冷设备有限公司 | Compressor and air conditioning system provided with same |
| CN105782041A (en) * | 2016-04-28 | 2016-07-20 | 珠海格力节能环保制冷技术研究中心有限公司 | Multi-stage compressor, air conditioner system and control method of multi-stage 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 |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120530 |