CN104214100A - Compressor and air conditioner with same - Google Patents
Compressor and air conditioner with same Download PDFInfo
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- CN104214100A CN104214100A CN201310222509.6A CN201310222509A CN104214100A CN 104214100 A CN104214100 A CN 104214100A CN 201310222509 A CN201310222509 A CN 201310222509A CN 104214100 A CN104214100 A CN 104214100A
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Abstract
The invention provides a compressor and an air conditioner with the same. The compressor according to the utility model includes a shell, a crankshaft arranged inside the shell, a first cylinder and a second cylinder. The first cylinder sleeves the crankshaft and is provided with one first slip sheet, and an inner cavity of the first cylinder is used for forming a first-level compression mechanism. The second cylinder is sleevedly arranged on the crankshaft and is provided with two second slip sheets, an inner cavity of the second cylinder is divided into two compression cavities by the two second slip sheets, and the two compression cavities of the second cylinder are respectively used for forming a second-level compression mechanism and a third-level compression mechanism. The first-level compression mechanism, the second-level compression mechanism and the third-level compression mechanism are successively in series connection along a flow passage of a compression fluid. The utility model also provides the air conditioner comprising the compressor. The second cylinder is arranged into two levels of compression mechanisms to improve the compression ability, so that the compressor can work normally under working conditions of ultra-low temperature and ultra-high temperature, so as to better meet customer requirements.
Description
Technical field
The present invention relates to compressor field, especially, relate to a kind of compressor and there is its air conditioner.
Background technique
It is more ripe that applying rolling Principles of Piston Compressor realize twin-tub single stage compression technology, and under the world theme of current efficient, energy-saving and environmental protection, twin-tub two-stage increases enthalpy technology and is successfully applied to heat pump product, is the distillation of single stage compression technology and the embodiment of world today's theme.Under the operating mode of ultralow temperature and superhigh temperature, two-stage increases the cooling and heating limited efficacy of enthalpy Compressor Technology, needs further to be improved.
Summary of the invention
The object of the invention is the air conditioner providing a kind of compressor and have it, increases the enthalpy compressor inefficient technical problem of cooling and heating under the operating mode of ultralow temperature and superhigh temperature to solve two-stage.
For achieving the above object, the invention provides a kind of compressor, comprise housing; Be arranged on the bent axle of enclosure interior; First cylinder, the first cylinder liner is located on bent axle, the first cylinder is provided with first slide plate, and the inner chamber of the first cylinder is for the formation of one stage of compression mechanism; Second cylinder, second cylinder liner is located on bent axle, second cylinder is provided with two the second slide plates, the inner chamber of the second cylinder is divided into two compression chambers by two the second slide plates, these two compression chambers of second cylinder are respectively used to form two-stage compression mechanism and three stage compression mechanism, and one stage of compression mechanism, two-stage compression mechanism and three stage compression mechanism are sequentially connected in series along the runner of compressed fluid.
Further, compressor also comprises the first flange and the second flange, and the first flange adjoins with the first side of the first cylinder and is communicated with; Second flange adjoins with the first side of the second cylinder and is communicated with.
Further, compressor also comprises the first dividing plate and second partition, and the first dividing plate adjoins with the second side of the first cylinder and is communicated with; Second partition adjoins with the second side of the second cylinder and is communicated with, and the first dividing plate adjoins with second partition and is communicated with.
Further, compressor also comprises the first increasing enthalpy assembly and second and increases enthalpy assembly, and first increases enthalpy assembly is connected with two-stage compression mechanism by the first flange, and second increases enthalpy assembly is connected with three stage compression mechanism.
Further, the first increasing enthalpy pressure increasing enthalpy assembly is the first increasing enthalpy pressure, and the second increasing enthalpy pressure increasing enthalpy assembly is the second increasing enthalpy pressure, and first increases enthalpy pressure is less than the second increasing enthalpy pressure.
Further, the minimum cylinder volume of one stage of compression mechanism is one stage of compression volume V1, the minimum cylinder volume of two-stage compression mechanism is two-stage compression volume V2, and the minimum cylinder volume of three stage compression mechanism is three stage compression volume V3, V1 > V2 > V3.
Further, the flowpath pressure between one stage of compression mechanism and two-stage compression mechanism is first flow pressure, and the flowpath pressure between two-stage compression mechanism and three stage compression mechanism is the second flowpath pressure, and first flow pressure is less than the second flowpath pressure.
Further, the first flange is provided with the first intermediate cavity, second partition is provided with the second intermediate cavity.
Further, the second increasing enthalpy assembly is connected with second partition by the first cylinder, the first dividing plate with three stage compression mechanism.
Present invention also offers a kind of air conditioner, comprise compressor, compressor is aforesaid compressor.
The present invention has following beneficial effect:
By the second cylinder is set to two stage compression mechanism, improve compressed capability, improve compressor cooling and heating efficiency under the operating mode of ultralow temperature and superhigh temperature, compressor normally can be worked under the operating mode of ultralow temperature and superhigh temperature, meet the requirement of client better.
Except object described above, feature and advantage, the present invention also has other object, feature and advantage.Below with reference to figure, the present invention is further detailed explanation.
Accompanying drawing explanation
The accompanying drawing forming a application's part is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the schematic diagram according to compressor of the present invention;
Fig. 2 is the decomposing schematic representation according to compressor of the present invention;
Fig. 3 is the schematic diagram of the first cylinder according to compressor of the present invention;
Fig. 4 is the schematic diagram of the first flange according to compressor of the present invention;
Fig. 5 is the schematic diagram of the first dividing plate according to compressor of the present invention;
Fig. 6 is the schematic diagram of the second partition according to compressor of the present invention;
Fig. 7 is the second cylinder schematic diagram according to compressor of the present invention;
Fig. 8 is the refrigeration cycle schematic diagram according to air conditioner of the present invention; And
Fig. 9 heats circulation schematic diagram according to air conditioner of the present invention.
Reference character in accompanying drawing is as follows: 1, liquor separator; 2, baffler; 3, the second flange; 4, the second cylinder; 5, second partition; 6, the first dividing plate; 7, the first cylinder; 8, the first flange; 9, the first flange plate; 10, lower cover; 11, housing; 12, first increases enthalpy assembly; 13, second increases enthalpy assembly; 14, bent axle; 15, motor; 16, cover assembly; 17, outlet pipe; 18, the first slide plate; 19, the second slide plate; 41, two-stage compression intakeport; 42, two-stage compression relief opening; 43, three stage compression intakeport; 44, three stage compression relief opening; 51, first flow second partition portion; 52, two-stage compression exhaust port; 53, the second intermediate cavity; 54, the second runner second partition portion; 61, first flow first partition board portion; 62, second increases enthalpy hole; 71, one stage of compression intakeport; 72, one stage of compression relief opening; 73, second increases enthalpy hole; 74, first flow first cylinder part; 81, one stage of compression exhaust port; 82, first increases enthalpy hole; 83, the first intermediate cavity; 84, first flow first flange part; 201, compressor; 202, one-level four-way change-over valve; 203, outdoor heat exchanger; 204, one-level throttle valve; 205, primary flash device; 206, one-level stop valve; 207, one-level one-way valve; 208, two-step throttle valve; 209, two-stage flash device; 210, secondary stop valve; 211, secondary four-way change-over valve; 212, two-stage unidirectional valve; 213, three grades of throttle valve; 214, indoor heat exchanger.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are described in detail, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
See Fig. 1 to Fig. 7, according to compressor of the present invention, comprising: housing 11; Be arranged on the bent axle 14 of housing 11 inside; First cylinder 7, first cylinder 7 is set on bent axle 14, the first cylinder 7 is provided with the inner chamber of first slide plate 18, first cylinder for the formation of one stage of compression mechanism; Second cylinder 4, second cylinder 4 is set on bent axle 14, second cylinder 4 is provided with two the second slide plates 19, the inner chamber of the second cylinder is divided into two compression chambers by two the second slide plates, these two compression chambers of second cylinder are respectively used to form two-stage compression mechanism and three stage compression mechanism, and one stage of compression mechanism, two-stage compression mechanism and three stage compression mechanism are sequentially connected in series along the runner of compressed fluid.By the second cylinder is set to two stage compression mechanism, improve compressed capability, improve compressor cooling and heating efficiency under the operating mode of ultralow temperature and superhigh temperature, compressor normally can be worked under the operating mode of ultralow temperature and superhigh temperature, meet the requirement of client better.
See Fig. 1 to Fig. 2, compressor also comprises the first flange 8 and the second flange 3, first flange 8 adjoins with the first side of the first cylinder 7 and is communicated with; Second flange 3 adjoins with the first side of the second cylinder 4 and is communicated with.Compressor also comprises the first dividing plate 6 and second partition 5, first dividing plate 6 adjoins with the second side of the first cylinder 7 and is communicated with; Second partition 5 adjoins with the second side of the second cylinder 4 and is communicated with, and the first dividing plate 6 adjoins with second partition 5 and is communicated with.
See Fig. 1 to Fig. 2, compressor also comprises the first increasing enthalpy assembly 12 and the second increasing enthalpy assembly 13, first increasing enthalpy assembly 12 is connected with the first flange 8, and second increases enthalpy assembly 13 is connected with the second cylinder 4.Second increases enthalpy assembly 13 is connected with second partition 5 by the first cylinder 7, first dividing plate 6 with the second cylinder 4.
The first increasing enthalpy pressure increasing enthalpy assembly 12 is the first increasing enthalpy pressure, and the second increasing enthalpy pressure increasing enthalpy assembly 13 is the second increasing enthalpy pressure, and first increases enthalpy pressure is less than the second increasing enthalpy pressure.
The minimum cylinder volume of one stage of compression mechanism is one stage of compression volume V1, and the minimum cylinder volume of two-stage compression mechanism is two-stage compression volume V2, and the minimum cylinder volume of three stage compression mechanism is three stage compression volume V3, V1 > V2 > V3.
Flowpath pressure between one stage of compression mechanism and two-stage compression mechanism is first flow pressure, and the flowpath pressure between two-stage compression mechanism and three stage compression mechanism is the second flowpath pressure, and first flow pressure is less than the second flowpath pressure.
See Fig. 2, Fig. 4 and Fig. 6, the first flange 8 is provided with the first intermediate cavity 83, second partition 5 is provided with the second intermediate cavity 53.
Present invention also offers a kind of air conditioner, comprise compressor, described compressor is aforesaid compressor.
See Fig. 1 to Fig. 7, a kind of twin-tub three grades increases enthalpy rotor-type compressor and forms primarily of motor 15, second flange assembly (containing the second flange 3), cylinder (containing the second cylinder 4 and the first cylinder 7), roller, slide plate, pump partition plate (containing second partition 5 and the first dividing plate 6), the first flange assembly (containing the first flange 8), bent axle 14, increasing enthalpy structure (increase enthalpy assembly 12 and second containing first and increase enthalpy assembly 13), housing 11 sealing configuration (containing lower cover 10, housing 11 and cover assembly 16), liquor separator 1.Second flange assembly, baffler 2, second cylinder 4, second roller, the second slide plate and screw form upper cylinder component, first cylinder 7, first flange assembly, the first flange plate 9, first roller, the first slide plate 18 and screw form lower cylinder component, and bent axle 14 is through upper cylinder component, second partition 5, first dividing plate 6 and the lower cylinder component combined by composite screws.Second cylinder 4 is welded on housing 11.Liquor separator 1, first increases enthalpy assembly 12 and the second increasing enthalpy assembly 13 is fixed by welding on housing 11, liquor separator 1 is communicated with the first cylinder 7 one stage of compression intakeport 71 by sucking pipe, first increases enthalpy assembly 12 increases enthalpy hole 82 interference fit by blowdown pipe with first of the first flange 8 and communicates with the first flange 8 first intermediate cavity 83, and the second increasing enthalpy assembly 13 increases enthalpy hole 73 interference fit by blowdown pipe with second of the first cylinder 7 and communicates with the second intermediate cavity 53 of second partition 5.Lower cover 10 and cover assembly 16 are welded on housing 11.
By designing the first cylinder 7 for one stage of compression, second cylinder 4 has double suction exhaust structure and two vane slot structure simultaneously, namely the second cylinder 4 forms two-stage compression and three stage compression, compressor is primarily of housing 11, cover assembly 16, the closed chamber that lower cover 10 forms, hot jacket is at the variable frequency motor stator assembly of housing 11 inside, drive the bent axle 14 that compressor rotates, the variable-frequency motor rotor assembly of hot jacket on bent axle 14, support the second flange assembly and first flange assembly of bent axle 14, there is upper first cylinder 7 simultaneously, the first flange plate 9 of the first intermediate cavity 83 is formed with the first flange 8, go deep into the liquor separator 1 that the first cylinder 7 is communicated with one-level air aspiration cavity, the increasing enthalpy assembly first intermediate cavity 83 and the second intermediate cavity 53 being carried out to tonifying Qi forms jointly.Wherein the first flange assembly is made up of jointly the first flange 8, first valve block, the first valve block baffle plate and rivet, and the first flange 8 offers intermediate cavity structure, second flange assembly is made up of jointly the second flange 3, upper valve block, upper valve block baffle plate and rivet, one stage of compression is made up of the first cylinder 7, first roller and the first slide plate 18, second cylinder teeth cavity in April is divided into two-stage compression and three stage compression by the second slide plate 19 and upper roller, and one stage of compression volume V1 > two-stage compression volume V2 > three stage compression volume V3.
See Fig. 2, the first cylinder 7 is designed to single slide vane structure, forms one stage of compression with the first roller and the first slide plate 18.
See Fig. 4, the first flange 8 is designed to the Q type structural feature with the first intermediate cavity 83, and the one stage of compression gas and first that the first cylinder 7 is discharged increases enthalpy gas and mixes in the first intermediate cavity 83.
See Fig. 5, the first dividing plate 6 designs first flow first partition board portion 61 and second and increases enthalpy hole 62.
See Fig. 6, second partition 5 is designed to the structure with first flow second partition portion 51, second intermediate cavity 53 and two-stage compression exhaust port 52, and the gas that two-stage compression is discharged and second increases enthalpy gas and mixes in the second intermediate cavity 53.
See Fig. 7, the second cylinder 4 is designed to two slide vane structures with two-stage compression suction and discharge, three stage compression suction and discharge.
See Fig. 8 and Fig. 9, the stream that twin-tub of the present invention three grades of secondaries increase refrigeration agent in enthalpy compression air conditioner is a main road, two branch roads, and the concrete flow direction is as follows:
1. freeze:
A, main road: compressor top cover outlet pipe → one-level four-way change-over valve 202 → outdoor heat exchanger 203 → one-level throttle valve 204 → primary flash device 205 → two-step throttle valve 208 → two-stage flash device 209 → tri-grades of throttle valve 213 → indoor heat exchanger 214 → one-level four-way change-over valve 202 → liquid separator of compressor sucking pipes;
B, second order tonifying Qi increase enthalpy branch road: primary flash device 205 → one-level stop valve 206 → secondary four-way change-over valve 211 → one-level one-way valve 207 → the second increases enthalpy assembly 13 → the second intermediate cavity;
C, single order tonifying Qi increase enthalpy branch road: two-stage flash device 209 → secondary stop valve 210 → secondary four-way change-over valve 211 → two-stage unidirectional valve 212 → the first increases enthalpy assembly 12 → the first intermediate cavity 83;
2. heat:
A, main road: compressor top cover outlet pipe → one-level four-way change-over valve 202 → indoor heat exchanger 214 → tri-grades throttle valve 213 → two-stage flash device 209 → two-step throttle valve 208 → primary flash device 205 → one-level throttle valve 204 → outdoor heat exchanger 203 → one-level four-way change-over valve 202 → liquid separator of compressor sucking pipe;
B, second order tonifying Qi increase enthalpy branch road: two-stage flash device 209 → secondary stop valve 210 → secondary four-way change-over valve 211 → one-level one-way valve 207 → the second increases enthalpy assembly 13 → the second intermediate cavity 53;
C, single order tonifying Qi increase enthalpy branch road: primary flash device 205 → one-level stop valve 206 → secondary four-way change-over valve 211 → two-stage unidirectional valve 212 → the first increases enthalpy assembly 12 → the first intermediate cavity 83;
The refrigeration agent getting back to compressor 201 from system is divided into three, first refrigeration agent enters after the first cylinder 7 carries out one stage of compression from heat exchanger, discharge through one stage of compression relief opening 72 and the first flange 8 exhaust port, with increase through first second refrigeration agent that enthalpy assembly 12 fills into from two-stage unidirectional valve 212 and mix in the first intermediate cavity of the first flange 8, and single order mixed gas is through the first flange 8 first flow first flange part 84, first flow first cylinder part 74 of the first cylinder 7, first flow first partition board portion 61 of the first dividing plate 6 and the first flow second partition portion 51 of second partition 5 and carry out two-stage compression by the two-stage compression chamber that the first flow second partition portion 51 of the second cylinder 4 two-stage compression intakeport 41 enters the second cylinder 4, gas after two-stage compression is discharged from two-stage compression relief opening 42 and second partition exhaust port, with increase through second the 3rd refrigerant gas that enthalpy assembly 13 fills into from one-level one-way valve 207 and mix in the second intermediate cavity of the first dividing plate 6, and three stage compression is carried out in the three stage compression chamber that second order mixed gas enters the second cylinder 4 through the second runner, gas after three stage compression discharges the pump housing through three stage compression relief opening 44 and the second flange 3, enter by housing 11, in the cavity that cover assembly 16 and lower cover 10 are formed.Wherein the first increasing enthalpy pressure < second increases enthalpy pressure, first flow pressure < second flowpath pressure.
The refrigeration agent process of circulation is sketched: the refrigeration agent of returning from system is divided into three, under the rotation of motor 15, compressor 201 operates, first refrigeration agent is discharged through the first flange 8 one stage of compression exhaust port 81 after the one stage of compression intakeport 71 of liquor separator 1 to the first cylinder 7 enters the first cylinder 7 compression from heat exchanger (indoor heat exchanger 214 or outdoor heat exchanger 203) again, and with increase through first second refrigeration agent that enthalpy assembly 12 fills into from two-stage unidirectional valve 212 and mix in the first flange 8 first intermediate cavity 83, single order mixed gas is through the first flange 8 first flow first flange part 84, first cylinder 7 first flow first cylinder part 74, first dividing plate 6 first flow first partition board portion 61 and second partition 5 first flow second partition portion 51 and enter the second cylinder 4 two-stage compression chamber compression by the second cylinder 4 two-stage compression intakeport 41, gas after two-stage compression is discharged through second partition two-stage compression exhaust port 52, and with increase through second the 3rd refrigeration agent that enthalpy assembly 13 fills into from one-level one-way valve 207 and mix in the second intermediate cavity 53 of second partition, second order mixed gas enters the second cylinder 4 three stage compression chamber compression through second partition second runner second partition portion 54 and the second cylinder 4 three stage compression intakeport 43, gas after three stage compression is expelled to by housing 11 through the second flange exhaust port, cover assembly 16, in the cavity that lower cover 10 is formed, and be discharged to system (vaporizer or condenser) from outlet pipe 17, namely the three stage compression secondary completing compressor 201 increases the working procedure of enthalpy.
As can be seen from the above description, the above embodiments of the present invention achieve following technique effect:
By the second cylinder is set to two stage compression mechanism, improve compressed capability, improve compressor cooling and heating efficiency under the operating mode of ultralow temperature and superhigh temperature, compressor normally can be worked under the operating mode at ultralow temperature and superhigh temperature, meet the requirement of client better.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a compressor, is characterized in that, comprising:
Housing (11);
Be arranged on the bent axle (14) that described housing (11) is inner;
First cylinder (7), described first cylinder (7) is set on described bent axle (14), and described first cylinder (7) is provided with first slide plate (18), the inner chamber of described first cylinder is for the formation of one stage of compression mechanism;
Second cylinder (4), described second cylinder (4) is set on described bent axle (14), described second cylinder (4) is provided with two the second slide plates (19), the inner chamber of described second cylinder is divided into two compression chambers by described two the second slide plates, these two compression chambers of described second cylinder are respectively used to form two-stage compression mechanism and three stage compression mechanism
Described one stage of compression mechanism, two-stage compression mechanism and three stage compression mechanism are sequentially connected in series along the runner of compressed fluid.
2. compressor according to claim 1, is characterized in that, described compressor also comprises the first flange (8) and the second flange (3), and described first flange (8) adjoins with the first side of described first cylinder (7) and is communicated with; Described second flange (3) adjoins with the first side of described second cylinder (4) and is communicated with.
3. compressor according to claim 2, is characterized in that, described compressor also comprises the first dividing plate (6) and second partition (5), and described first dividing plate (6) adjoins with the second side of described first cylinder (7) and is communicated with; Described second partition (5) adjoins with the second side of described second cylinder (4) and is communicated with, and described first dividing plate (6) adjoins with described second partition (5) and is communicated with.
4. compressor according to claim 2, it is characterized in that, described compressor also comprises the first increasing enthalpy assembly (12) and second and increases enthalpy assembly (13), described first increases enthalpy assembly (12) is connected with described two-stage compression mechanism by described first flange (8), and described second increases enthalpy assembly (13) is connected with described three stage compression mechanism.
5. compressor according to claim 4, it is characterized in that, the described first increasing enthalpy pressure increasing enthalpy assembly (12) is the first increasing enthalpy pressure, and the described second increasing enthalpy pressure increasing enthalpy assembly (13) is the second increasing enthalpy pressure, and described first increases enthalpy pressure is less than the second increasing enthalpy pressure.
6. compressor according to any one of claim 1 to 5, it is characterized in that, the minimum cylinder volume of described one stage of compression mechanism is one stage of compression volume V1, the minimum cylinder volume of described two-stage compression mechanism is two-stage compression volume V2, the minimum cylinder volume of described three stage compression mechanism is three stage compression volume V3, V1 > V2 > V3.
7. compressor according to claim 3, it is characterized in that, flowpath pressure between described one stage of compression mechanism and described two-stage compression mechanism is first flow pressure, flowpath pressure between described two-stage compression mechanism and described three stage compression mechanism is the second flowpath pressure, and first flow pressure is less than the second flowpath pressure.
8. compressor according to claim 3, is characterized in that, described first flange (8) is provided with the first intermediate cavity (83), described second partition (5) is provided with the second intermediate cavity (53).
9. compressor according to claim 4, is characterized in that, described second increases enthalpy assembly (13) is connected with second partition (5) by described first cylinder (7), the first dividing plate (6) with described three stage compression mechanism.
10. an air conditioner, comprises compressor, it is characterized in that, the compressor of described compressor according to any one of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310222509.6A CN104214100B (en) | 2013-06-05 | 2013-06-05 | Compressor and air conditioner with it |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310222509.6A CN104214100B (en) | 2013-06-05 | 2013-06-05 | Compressor and air conditioner with it |
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| CN104214100B CN104214100B (en) | 2018-08-07 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105298840A (en) * | 2015-11-23 | 2016-02-03 | 珠海格力节能环保制冷技术研究中心有限公司 | Multi-cylinder double-level enthalpy-increasing compressor, air conditioner, heat pump water heater and control method |
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| CN105927537A (en) * | 2016-06-22 | 2016-09-07 | 珠海格力节能环保制冷技术研究中心有限公司 | Pump body assembly and compressor with same |
| CN109026691A (en) * | 2018-08-22 | 2018-12-18 | 珠海凌达压缩机有限公司 | A kind of multiple cylinder multiple level compressor and air-conditioning system |
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| CN109026691A (en) * | 2018-08-22 | 2018-12-18 | 珠海凌达压缩机有限公司 | A kind of multiple cylinder multiple level compressor and air-conditioning system |
| CN109026691B (en) * | 2018-08-22 | 2024-03-22 | 珠海凌达压缩机有限公司 | Multi-cylinder multi-stage compressor and air conditioning system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104214100B (en) | 2018-08-07 |
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Effective date of registration: 20181121 Address after: No. six, Qianshan Jinji West Road, Zhuhai, Guangdong Province Co-patentee after: Zhuhai Gree Energy Saving & Refrigerating Technology Resarch Center Co., Ltd. Patentee after: GREE ELECTRIC APPLIANCES Inc. OF ZHUHAI Address before: 519070 science and technology building, 789 Jinji Road, Qianshan, Zhuhai, Guangdong Patentee before: Zhuhai Gree Energy Saving & Refrigerating Technology Resarch Center Co., Ltd. |