CN205370971U - Scroll compressor - Google Patents
Scroll compressor Download PDFInfo
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- CN205370971U CN205370971U CN201521096612.1U CN201521096612U CN205370971U CN 205370971 U CN205370971 U CN 205370971U CN 201521096612 U CN201521096612 U CN 201521096612U CN 205370971 U CN205370971 U CN 205370971U
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- interface channel
- compression chamber
- enthalpy
- piston
- screw compressor
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Abstract
An object of the utility model is to provide a there is the problem of the easy gas leakage of pressure differential in scroll compressor that scroll compressor, mainly used solved asymmetric closing when increasing the enthalpy two compression chambeies. Including admitting air in turn and carminative first compression chamber and second compression chamber to and increase enthalpy inlet channel, increase enthalpy inlet channel pass through controlling means with first compression chamber with second compression chamber is connected, controlling means is used for making when increasing the enthalpy first compression chamber with second compression chamber with it is linked together to increase enthalpy inlet channel to and make when increasing the enthalpy closing first compression chamber with the second compression does not communicate between the chamber. Through making when increasing the enthalpy closing first compression chamber with it effectively to solve the gas leakage problem of closing when increasing the enthalpy not communicate between the second compression chamber.
Description
Technical field
This utility model relates to compressor field, is specifically related to a kind of screw compressor.
Background technology
When the air conditioning system adopting tradition screw compressor heats in the winter time, along with ambient temperature declines, compressor air suction coolant density declines, air-breathing mass flow also declines therewith, there will be inspiration capacity deficiency, have a strong impact on heating capacity, pressure ratio increases simultaneously, delivery temperature can substantially rise, and affects compressor reliability.And along with ambient temperature reduces, situation runs down.
Vortex air injection enthalpy-increasing technology is introduced in order to improve this problem, namely increasing enthalpy passage is offered at the quiet Pan Chu of screw compressor, to system be passed through to increase enthalpy passage through the saturated gas of flash vessel or plate type heat exchanger, introduce compression chamber, increase mass flow when heating, hence it is evident that improve heating capacity during low temperature, reduce delivery temperature simultaneously, when refrigeration, before and after vaporizer, enthalpy difference increases, and refrigerating capacity also can increase.Increasing enthalpy air supply passage drag losses more little, when air compensation is more big, increase enthalpy effect more obvious, relatively single chamber QI invigorating, two-chamber replace the situation of QI invigorating, and air compensation is maximum simultaneously for two-chamber.
What tradition screw compressor adopted is symmetrical structure molded line, owing to two pairs of air-breathings, compression chamber are full symmetric, pressure is equal, when band increases enthalpy structure, two chambeies QI invigorating simultaneously can be realized, but symmetrical structure Shortcomings, two pairs of suction muffler air-breathings simultaneously, compression and aerofluxus simultaneously, it is long to there is suction muffler air intake passage in the method, inspiratory resistance is big, affects inspiration capacity, the problem that discharge loss simultaneously is big.Use asymmetric molded line instead and can avoid the problems referred to above, two chamber alternating inspiratory, aerofluxuss, volumetric efficiency is high, and fluid resistance loss is little, according to two-chamber QI invigorating simultaneously, close increase enthalpy time, due to two chambeies pressure not etc., high pressure chest can leak to low pressure chamber, increases power consumption.
Utility model content
In view of this, this utility model provides one when enthalpy to two compression chambers QI invigorating simultaneously, can prevent again the screw compressor that high pressure chest is revealed to low pressure chamber when closing enthalpy.
For reaching this purpose, this utility model by the following technical solutions:
A kind of screw compressor, including the first compression chamber and the second compression chamber that can replace air inlet and aerofluxus, and enthalpy inlet channel；Described enthalpy inlet channel is connected with described first compression chamber and described second compression chamber by controlling device, described control device for making described first compression chamber be connected with described enthalpy inlet channel with described second compression chamber when enthalpy, and makes not connect between described first compression chamber and described second compression chamber when closing enthalpy.
Preferably, in aforesaid screw compressor, described control device, when closing enthalpy, makes not connect between at least one in described first compression chamber and described second compression chamber and described enthalpy inlet channel.
Preferably, in aforesaid screw compressor, formed between described orbiter and fixed scroll including orbiter and fixed scroll, described first compression chamber and described second compression chamber；Described enthalpy inlet channel is located in described fixed scroll, and described enthalpy inlet channel connects described first compression chamber and the second compression chamber respectively by the first interface channel and the second interface channel；Described control device is for opening described first interface channel and described second interface channel simultaneously, or closes at least one in described first interface channel and described second interface channel.
Preferably, in aforesaid screw compressor, described control device is electromagnetic valve.
Preferably, in aforesaid screw compressor, described electromagnetic valve includes cylinder body, iron core, coil, spring and piston, described iron core and described coil and is located at the one end in described cylinder body, and described coil is sheathed on the outside of described iron core；Described piston is slidably disposed in described cylinder body, and for opening described first interface channel and described second interface channel simultaneously, or close at least one in described first interface channel and described second interface channel；Described spring is for applying the elastic force away from described cylinder body to described piston.
Preferably, in aforesaid screw compressor, described piston can move between a primary importance and a second position, in described primary importance, and the first interface channel described in described piston closes and/or described second interface channel；In the described second position, described first interface channel is connected with described enthalpy inlet channel with described second interface channel.
Preferably, in aforesaid screw compressor, described screw compressor also includes suction nozzle and exhaustor；Described control device includes controlling valve and three-way valve, wherein controls valve and includes cylinder body and piston；Described piston is slidably disposed in described cylinder body, air chamber is formed between described piston and described cylinder body, described piston is for opening described first interface channel and described second interface channel simultaneously, or closes at least one in described first interface channel and described second interface channel；First end of described three-way valve connects described exhaustor, and the second end connects described suction nozzle, air chamber described in three-terminal link；Described three-way valve can switch between the first state and a second state, and in the first state, described exhaustor connects with described air chamber, and described piston closes at least one in described first interface channel and described second interface channel；In the second condition, described suction nozzle connects with described air chamber, and described piston opens described first interface channel and described second interface channel simultaneously.
Preferably, in aforesaid screw compressor, when enthalpy, described three-way valve is in the second state；When closing enthalpy, described three-way valve is in the first state.
Preferably, in aforesaid screw compressor, state piston and in close described air chamber side and/or be provided with spring away from air chamber side.
The beneficial effects of the utility model are:
1, by arranging control device, making not connect between the first compression chamber and the second compression chamber when closing enthalpy, when so can effectively prevent from closing enthalpy, high pressure chest leaks gas to low pressure chamber, increases power consumption.
2, when closing enthalpy, control device to make not connect between at least one in described first compression chamber and described second compression chamber and described enthalpy inlet channel, it is connected with enthalpy inlet channel when such first compression chamber and the second compression chamber difference, can prevent from being leaked gas by enthalpy inlet channel.
3, control device and adopt electromagnetic valve, realized the first interface channel and the open and close controlling of the second interface channel, simple in construction by slidably piston, it is simple to manufacture.
4, control device and adopt pneumatic control valve, and be connected by the three-way valve air inlet pipe with compressor and exhaustor, by changing the flow direction in three-way valve, the state of change control valve.
Accompanying drawing explanation
By referring to the accompanying drawing description to this utility model embodiment, of the present utility model above-mentioned and other objects, features and advantages will be apparent from, in the accompanying drawings:
Fig. 1 a is that the screw compressor of the first embodiment of the present utility model is at the schematic diagram controlled under device is closed.
Fig. 1 b is the partial enlarged drawing controlling device in Fig. 1 a.
The screw compressor that Fig. 2 a is the first embodiment of the present utility model is in the schematic diagram under opening at control device.
Fig. 2 b is the partial enlarged drawing controlling device in Fig. 2 a.
Fig. 3 a is that the screw compressor of the second embodiment of the present utility model is at the schematic diagram controlled under device is closed.
The screw compressor that Fig. 3 b is the second embodiment of the present utility model is in the schematic diagram under opening at control device.
Fig. 4 a is the partial enlarged drawing controlling valve in Fig. 3 a.
Fig. 4 b is the partial enlarged drawing controlling valve in Fig. 3 b.
Detailed description of the invention
Below based on embodiment, this utility model is described, but this utility model is not restricted to these embodiments.In below details of the present utility model being described, detailed describe some specific detail sections.The description not having these detail sections for a person skilled in the art can also understand this utility model completely.In order to avoid obscuring essence of the present utility model, known method, process, flow process, element be narration in detail not.
Below the above-below direction in implementing direction is defined as follows: as shown in fig. ia, be top from the direction of compressor drum 14 to fixed scroll 17, be lower section with top opposite direction.
Embodiment one is the first embodiment of screw compressor of the present utility model.
As shown in Figure 1a, screw compressor includes shell 15, is provided with drive motor, bent axle 9, orbiter 3, fixed scroll 17 in shell 15；Drive motor includes rotor 14 and stator 8, and rotor 14 is connected with orbiter 3 to drive orbiter 3 to rotate by bent axle 9.Orbiter 3 is provided with dynamic side scroll body, and fixed scroll 17 is provided with quiet side scroll body (not shown), moves and forms the first compression chamber 17a and the second compression chamber 17b that can replace air inlet and aerofluxus between side scroll body and quiet side scroll body；Housing 15 is provided with suction nozzle 18 and exhaustor 16, it is respectively used in two compression chambers supply gas and the gas after compression is discharged compressor, screw compressor also has enthalpy inlet channel 2, enthalpy inlet channel 2, it is arranged in the firm banking 17d of fixed scroll 17, one end is connected with the flash evaporation outside compressor or plate type heat exchanger (not shown), the other end connects two compression chambers, for will system being passed through to increase enthalpy inlet channel 2 through the saturated gas of flash evaporation or plate type heat exchanger when enthalpy, introduce two compression chambers, increase mass flow when heating, promote heating capacity during low temperature, reduce delivery temperature simultaneously, when refrigeration, before and after vaporizer, enthalpy difference increases, refrigerating capacity also can increase.Concrete enthalpy process is, the coolant of low-temp low-pressure is sucked by screw compressor by suction nozzle 18, along with bent axle 9 rotates, orbiter 3 is driven to rotate, compression chamber volume constantly reduces, compression gas, the saturated gas simultaneously flowed out from the flash evaporation of system or plate type heat exchanger, enter compression chamber by increasing enthalpy inlet channel 2 to be mixed with, gas in cooled compressed chamber, after mixing, gas is through continuing compression, the gas becoming High Temperature High Pressure is discharged from quiet dish air vent 17c, enter the aerofluxus cushion chamber on top, opening then through quiet dish 17 and support 5 enters motor epicoele, partial gas is directly discharged from exhaustor 16, remaining gas is along stator 8 trimming, enter motor cavity of resorption, after cooling motor, motor epicoele is returned to further around crossing stator 8 trimming, compressor is discharged from exhaustor 16.
Screw compressor also includes controlling device, enthalpy inlet channel 2 is connected with described first compression chamber 17a and described second compression chamber 17b by controlling device, control device for making when enthalpy described first compression chamber 17a and the second compression chamber 17b be connected with described enthalpy inlet channel, and make not connect between described first compression chamber 17a and described second compression chamber 17b when closing enthalpy.So when closing enthalpy, first compression chamber 17a and the second compression chamber 17b air inlet alternately and aerofluxus, therebetween there is pressure differential, but owing to not connecting between described first compression chamber 17a and described second compression chamber 17b, cause gas leakage thus without the existence because of pressure differential and then increase the power consumption of compressor.
As one preferably embodiment, control device when closing enthalpy, make not connect between at least one in described first compression chamber 17a and described second compression chamber 17b and described enthalpy inlet channel 2.Cannot be interconnected by enthalpy inlet channel 2 between such first compression chamber 17a and the second compression chamber 17b,
Preferably, described enthalpy inlet channel 2 connects described first compression chamber 17a and the second compression chamber 17b respectively by the first interface channel 17e and the second interface channel 17f；Described control device is for opening described first interface channel 17e and described second interface channel 17f simultaneously, or closes at least one in described first interface channel 17e and described second interface channel 17f；As shown in Fig. 1 a, 1b, 2a, 2b, embodiment one adopt be the mode simultaneously closing off the first interface channel 17e and described second interface channel 17f, but close the first interface channel 17e and described second interface channel 17f therein any one can realize making not connect mutually between two compression chambers.
Preferably, controlling device is electromagnetic valve 20, described electromagnetic valve 20 includes cylinder body, iron core 201, coil 204, spring 202 and piston 203, wherein cylinder body is at least partially disposed in the firm banking 17d of fixed scroll 17, the one end in described cylinder body is located at by described iron core 201 and described coil 204, and described coil 204 is sheathed on the outside of described iron core 201；Described piston 203 is slidably disposed in described cylinder body, and for opening described first interface channel 17e and described second interface channel 17f simultaneously, or close at least one in described first interface channel 17e and described second interface channel 17f；Described spring 202 is for applying the elastic force away from described cylinder body to described piston 203.Preferably, piston 203 is provided with at least one plunger 203a, and described piston 203 is for closing at least one in the first interface channel 17e and described second interface channel 17f.As shown in Fig. 1 b and 2b, present embodiment is provided with on plunger 203 two plunger 203a, corresponding with two interface channel 17e and 17f position respectively, two interface channel 17e and 17f can be closed, so that not connecting mutually between the first compression chamber 17a and the second compression chamber 17b simultaneously.Piston 203 can move between next primary importance of combined effect and a second position of coil 204, iron core 201 and spring 202.When system does not need enthalpy, coil 204 no power, piston 203 is pushed into primary importance by spring, and now piston 203 closes described first interface channel 17e and/or the second interface channel 17f；What adopt in the present embodiment is the mode simultaneously closing two interface channels, as shown in Fig. 1 a, 1b；When system needs enthalpy, coil 204 is energized, iron core 201 adsorbs piston 203 and overcomes the elastic force of spring 202 to move to the second position, described first interface channel 17e is connected with described enthalpy inlet channel 2 with described second interface channel 17f, enthalpy inlet channel 2 is that two compression chamber 17a and 17b carry out enthalpy QI invigorating, as shown in Fig. 2 a, 2b.So by coil 204 current switching, control the electromagnetic force on iron core 201, open and close electromagnetic valve, it is achieved connection between the first compression chamber 17a and the second compression chamber 17b and enthalpy inlet channel 2 or disconnection.For asymmetrical screw compressor, when closing enthalpy, can being prevented effectively from the problem of collaborating between two compression chambers, reduce the impact of clearance volume, repeated compression merit reduces, and efficiency promotes.
Embodiment two
Embodiment two is the another embodiment of the screw compressor of the application, and compared with embodiment one, it is distinctive in that the structure controlling device is different.As shown in Fig. 3 a, 3b, 4a, 4b, in the present embodiment, control device and include controlling valve 30 and three-way valve 26, wherein control valve and include cylinder body and piston 303；On the firm banking 17d being at least partially formed in fixed scroll 17 of cylinder body, described piston 303 is slidably disposed in described cylinder body, air chamber 305 is formed between described piston 303 and described cylinder body, described piston 303 is for opening described first interface channel 17e and described second interface channel 17f simultaneously, or closes at least one in described first interface channel 17e and described second interface channel 17f；First end 26a of described three-way valve 26 connects described exhaustor 16, and the second end 26b connects described suction nozzle 18, and the 3rd end 26c connects described air chamber 305.Three-way valve 26 preferably employs solenoid directional control valve.
Described three-way valve 26 can switch between the first state and a second state, in the first state, described exhaustor 16 connects with described air chamber 305, pressed gas in exhaustor 16 is introduced in air chamber 305 by connecting line, gases at high pressure act on the top of piston 303, piston 303 pressure difference effect moves downward, and closes at least one in described first interface channel 17e and described second interface channel 17f；As shown in Fig. 3 a, 3b, 4a, 4b, what embodiment two adopted is the mode simultaneously closing off the first interface channel 17e and described second interface channel 17f, but close the first interface channel 17e and described second interface channel 17f therein any one be also feasible, wherein the plunger 303a of piston 303 bottom be two or one can；And then block coolant exchange between the first compression chamber 17a and the second compression chamber two 17b, now system is for closing enthalpy state, as shown in Fig. 3 a, 3b, 4a, 4b.In the second condition, described suction nozzle 18 connects with described air chamber 305, being incorporated in air chamber 305 by pressure of inspiration(Pi) in suction nozzle 18, piston 303 bottom is the intermediate pressure in compression chamber, more than the pressure of inspiration(Pi) of piston 303 upper end, under the effect of pressure differential, piston 303 moves upward, and increasing enthalpy inlet channel 2 can connect with the first compression chamber 17a and the second compression chamber 17b, realizes two compression chambers smoothly and increases enthalpy simultaneously, now system is enthalpy state, referring to Fig. 3 b and 4b.Preferably, control valve 30 and also include spring 302, described spring 302 may be provided at the side of the close air chamber 305 of piston 303 and/or away from the side of air chamber 305, spring 302 primarily serves the buffering when piston 303 commutates and prevents piston 303 from clashing into the effect of cylinder body generation abnormal sound, also can the pressure differential that the opening and closing of piston to meet be adjusted simultaneously；In present embodiment, spring 302 is arranged on the side of the close air chamber 305 of piston 303.
Preferably, it is connected to throttling arrangement 27 between exhaustor 16 and the first end 26a of described three-way valve 26.Throttling arrangement 27 mainly suitably reduces the pressure being incorporated into piston 303 top, it is possible to decrease the noise that when three-way valve 26 switches, piston 303 place produces, and improves reliability herein simultaneously.
Different from embodiment one, embodiment two-way excess pressure switching device, control to enter the gas pressure in air chamber 305, change piston 303 upper gas pressure, utilize two-way pressure poor, control the motion of piston 303 different directions, and then realize enthalpy or close enthalpy.
Embodiment three
Embodiment three relates to a kind of control method for screw compressor, and described screw compressor includes the first compression chamber and the second compression chamber that can replace air inlet and aerofluxus and enthalpy inlet channel；Described method includes: make described first compression chamber be connected with described enthalpy inlet channel with described second compression chamber when enthalpy, and disconnects the connection between described first compression chamber and described second compression chamber when closing enthalpy.By such control so that two compression chambers can be carried out enthalpy QI invigorating during enthalpy, when closing enthalpy, it is possible to the problem avoiding producing to collaborate due to pressure reduction between two compression chambers.
Preferably, when closing enthalpy, make described first compression chamber not connect with described enthalpy inlet channel with at least one in described second compression chamber, so can realize disconnecting the connection between the first compression chamber and the second compression chamber.
Additionally, it should be understood by one skilled in the art that the accompanying drawing in this offer is provided to descriptive purpose, and what accompanying drawing was not necessarily drawn to scale.
It will also be appreciated that example embodiment is provided, so that the disclosure is comprehensive, and its scope is fully conveyed to those skilled in the art.A lot of specific detail (such as the example of particular elements, equipment and method) are presented to provide thorough understanding of the disclosure.It will be apparent to one skilled in the art that and need not adopt specific detail, example embodiment can be implemented with much different forms, and example embodiment is understood not to restriction the scope of the present disclosure.In some example embodiments, it is thus well known that device structure and widely-known technique are not described in.
When an element or layer be mentioned as another element or layer " on ", " being engaged to ", " being connected to " or " being coupled to " another element or during layer, its can directly on another element or layer, directly engaged, be connected or coupled to another element or layer, or can there is intermediary element or layer.By contrast, when an element be mentioned as " directly " another element or layer " on ", " being bonded directly to ", " being directly coupled to " or " being directly coupled to " another element or during layer, intermediary element or layer can be absent from.For describing other word of relation between element and should be explained in a similar manner (such as, " between " and " directly between ", " vicinity " and " being directly adjacent to " etc.).As used herein, term "and/or" includes arbitrary in the Listed Items of one or more association or all combines.
Although term first, second, third, etc. can be used for describing each element, parts, region, layer and/or section at this, but these elements, parts, region, layer and/or section should not be limited by these terms.These terms can only be used for distinguishing an element, parts, region, layer or section and another element, region, layer or section.The such as term of " first ", " second " and other numerical value term do not mean that order or order at this when using, unless clearly indicated by the context.Thus, the first element discussed below, parts, region, layer or section are referred to alternatively as the second element, parts, region, layer or section, without departing from the instruction of example embodiment.Additionally, in description of the present utility model, except as otherwise noted, " multiple " are meant that two or more.
Claims (9)
1. a screw compressor, including the first compression chamber (17a) and the second compression chamber (17b) that can replace air inlet and aerofluxus, and enthalpy inlet channel (2)；It is characterized in that, described enthalpy inlet channel (2) is connected with described first compression chamber (17a) and described second compression chamber (17b) by controlling device, described control device for making described first compression chamber (17a) be connected with described enthalpy inlet channel (2) with described second compression chamber (17b) when enthalpy, and makes not connect between described first compression chamber (17a) and described second compression chamber (17b) when closing enthalpy.
2. screw compressor as claimed in claim 1, it is characterized in that: described control device, when closing enthalpy, makes not connect between at least one in described first compression chamber (17a) and described second compression chamber (17b) and described enthalpy inlet channel (2).
3. screw compressor as claimed in claim 2, it is characterized in that: include orbiter (3) and fixed scroll (17), described first compression chamber (17a) and described second compression chamber (17b) and formed between described orbiter (3) and fixed scroll (17)；Described enthalpy inlet channel (2) is located in described fixed scroll (17), and described enthalpy inlet channel (2) connects described first compression chamber (17a) and described second compression chamber (17b) respectively by the first interface channel (17e) and the second interface channel (17f)；Described control device is for opening described first interface channel (17e) and the second interface channel (17f) simultaneously, or closes at least one in the first interface channel (17e) and the second interface channel (17f).
4. screw compressor as claimed in claim 3, it is characterised in that: described control device is electromagnetic valve.
5. screw compressor as claimed in claim 4, it is characterized in that: described electromagnetic valve (20) includes cylinder body, iron core (201), coil (204), spring (202) and piston (203), the one end in described cylinder body is located at by described iron core (201) and described coil (204), and described coil (204) is sheathed on the outside of described iron core (201)；Described piston (203) is slidably disposed in described cylinder body, and for opening described first interface channel (17e) and the second interface channel (17f) simultaneously, or close at least one in described first interface channel (17e) and the second interface channel (17f)；Described spring (202) is for applying the elastic force away from described cylinder body to described piston (203).
6. screw compressor as claimed in claim 5, it is characterized in that: described piston (203) can move between a primary importance and a second position, in described primary importance, described piston (203) closes described first interface channel (17e) and/or described second interface channel (17f)；In the described second position, described first interface channel (17e) is connected with described enthalpy inlet channel (2) with described second interface channel (17f).
7. screw compressor as claimed in claim 3, it is characterised in that: described screw compressor also includes suction nozzle (18) and exhaustor (16)；Described control device includes controlling valve (30) and three-way valve (26), wherein controls valve (30) and includes cylinder body and piston (303)；Described piston (303) is slidably disposed in described cylinder body, air chamber (305) is formed between described piston (303) and described cylinder body, described piston (303) is for opening described first interface channel (17e) and the second interface channel (17f) simultaneously, or closes at least one in described first interface channel (17e) and the second interface channel (17f)；First end (26a) of described three-way valve (26) connects described exhaustor (16), second end (26b) connects described suction nozzle (18), and the 3rd end (26c) connects described air chamber (305)；Described three-way valve (26) can switch between the first state and a second state, in the first state, described exhaustor (16) connects with described air chamber (305), and described piston (303) closes at least one in described first interface channel (17e) and the second interface channel (17f)；In the second condition, described suction nozzle (18) connects with described air chamber (305), and described piston (303) opens described first interface channel (17e) and the second interface channel (17f) simultaneously.
8. screw compressor as claimed in claim 7, it is characterised in that: when enthalpy, described three-way valve (26) is in the second state；When closing enthalpy, described three-way valve (26) is in the first state.
9. screw compressor as claimed in claim 7, it is characterised in that: described piston (303) is in close described air chamber (305) side and/or is being provided with spring (302) away from air chamber (305) side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521096612.1U CN205370971U (en) | 2015-12-22 | 2015-12-22 | Scroll compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521096612.1U CN205370971U (en) | 2015-12-22 | 2015-12-22 | Scroll compressor |
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| Publication Number | Publication Date |
|---|---|
| CN205370971U true CN205370971U (en) | 2016-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521096612.1U Withdrawn - After Issue CN205370971U (en) | 2015-12-22 | 2015-12-22 | Scroll compressor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105508241A (en) * | 2015-12-22 | 2016-04-20 | 珠海格力节能环保制冷技术研究中心有限公司 | Scroll compressor and control method thereof |
-
2015
- 2015-12-22 CN CN201521096612.1U patent/CN205370971U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105508241A (en) * | 2015-12-22 | 2016-04-20 | 珠海格力节能环保制冷技术研究中心有限公司 | Scroll compressor and control method thereof |
| CN105508241B (en) * | 2015-12-22 | 2017-11-24 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of screw compressor and its control method |
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| C14 | Grant of patent or utility model | ||
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| AV01 | Patent right actively abandoned |
Granted publication date: 20160706 Effective date of abandoning: 20171124 |
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| AV01 | Patent right actively abandoned |