CN205619620U - Redundant air conditioner of reconsitution type - Google Patents
Redundant air conditioner of reconsitution type Download PDFInfo
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- CN205619620U CN205619620U CN201620091540.XU CN201620091540U CN205619620U CN 205619620 U CN205619620 U CN 205619620U CN 201620091540 U CN201620091540 U CN 201620091540U CN 205619620 U CN205619620 U CN 205619620U
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Abstract
The utility model belongs to the technical field of air conditioner heat transfer system, the redundant air conditioner of reconsitution type of a concretely relates to hot standby, concrete technical scheme does: a redundant air conditioner of reconsitution type, including reliability part system, reliability part system mutually supports with unreliable part system and constitutes air conditioner heat transfer system, there is redundant part system in unreliable part system still backup, part in the unreliable part system, air conditioner heat transfer system all can be constituteed with the part in the reliability part system to part in the redundant part system, part through in part in the unreliable part system and the redundant part system carries out reconsitution, the copy control system fuses each set air conditioning system constitution component once more, thereby reconstruction goes out one set of complete refrigerating system, control system can carry out running state real time monitoring to all constitution equipment, each equipment room carries out the cross connection on control scheme and corresponding cooling tube way according to mode simultaneously, utilize the existing equipment to improve the overall reliability of system.
Description
Technical field
This utility model belongs to air conditioner heat exchange system technical field, is specifically related to the Reconstructed redundancy air-conditioning of a kind of stand-by heat.
Background technology
Air-conditioning is as the term suggests being exactly air conditioner, it is widely used in the middle of daily life, along with air-conditioning uses more and more extensive, place and the particularization of effect, people are harsher for the requirement of air-conditioning, more and more higher to the degree of dependence of air-conditioning, in order to ensure that Temperature and Relative Humidity of Indoor Air is controlled, people are using redundancy-type air-conditioning.
Redundancy-type air-conditioning is i.e. that air-conditioning work system and equipment repeat configuration, and when system jam, the work of trouble unit is got involved and undertaken to the parts of redundant configuration, thus reduces the fault time of system.Manually or automatically switch according to the redundant form that the Air-conditioner design initial stage uses.Specific works mode is similar to be repeated no more herein.
Redundancy air conditioning system entirety uses hot standby pattern, sees Figure of description 1, and in normal work, refrigeration system one and refrigeration system two backup each other unit, carry out alternation by control system programme-control, to ensure service life of equipment.Assuming, when equipment fault occurs in air conditioning system one, to be realized independently cutting machine by control system, air conditioning system two take over job, to ensure air conditioning system functional realiey, vice versa, i.e. realizes redundancy feature.When air conditioning system one fault, but after cutting machine, air conditioning system two there is also equipment fault, then under the system without recombination function is supported, air-conditioning entirety will appear from shutting down.
Utility model content
For solving the technical problem that prior art exists, this utility model provides a kind of Reconstructed redundancy air-conditioning, native system utilizes control system again to be merged by each set air conditioning system composition component, thus recreate the refrigeration system of complete set, control system can carry out running status to all component devices and monitor in real time, meanwhile, each equipment room is controlled the interconnection of circuit and corresponding refrigeration pipe according to mode of operation.
The most first explain the concept of redundancy:
Redundancy is a technological concept the most wide in range in fact, rather than it is appreciated that in technical method, redundancy protonotion is to repeat some parts of configuration system, when system jam, the work of trouble unit is got involved and undertaken to the parts of redundant configuration, thus reduces the fault time of system.Redundancy is divided into actively and passively form by type, and the so-called motility being actively and passively mainly master-slave swap is analyzed, and active redundancy(-ce) is actively to switch, it is simply that can switch the most voluntarily；Passive redundancy refers to just to be switched to spare package when the assembly being currently running breaks down or be abnormal time, the most also include that user manually or user program switching mode, divides and be divided into Hot Spare (Hot standby), warm spare (Warm standby) and cold standby (Coldstandby) according to function.
The concept of cold standby:
Cold standby, it is exactly the most plainly backup, he is to be placed in one side or warehouse by all properly functioning assemblies of backup, and the assembly waiting the assembly of operation more to renew after being broken carrys out the properly functioning of completion system, and this redundancy time and replacing construction are closely bound up.This cold standby mode seldom goes to pay close attention to response time, and needs operation maintenance personnel intervention operation.Give an example, a set of PLC runs system, do when making spare part and configured spare part completely, when PLC is operationally because thunder and lightning at night is found to have one piece of AI fastener and burns, and operation maintenance personnel, at once system cut-off, then changes fastener, in the operation that powers on, here it is the process of a complete coldstandby, as the time wherein delayed, can only be depending on the proficiency level to system of operation maintenance personnel and must passively accept.
The concept that temperature is standby:
Temperature is standby, is the two duplicate configuration components of set, and one properly functioning is considered main, another band machine do not run standby be considered from, at set intervals, the content of principal and subordinate is exchanged with each other once, when operating component breaks down, spare package just can run and undertake work.Giving an example, 300 software redundancy systems of Siemens, it is standby that the redundant fashion of two microprocessors is exactly temperature, the input of primary processor control system and output (I/O), and backup processor powers on and primary processor stops the waiting time during controlling.When this thing happens, the I/O that backup processor undertakes controls, and takes the primary processor specified, and processor allows off line to become minor processor, it is possible to safeguard not sacrificing process control.
In normal operating, primary processor provides the backup processor of regular update.These renewals usually occur in each program scanning and terminate, and may pertain only to part data at any time.Therefore, when a switchover occurs, the data that backup processor can be worked are imperfect, because it may take some backup processor program scannings to catch up with the most front conversion come here, this potentially contributes at transformation process moderately gusty air.
The concept of stand-by heat:
Stand-by heat, is the two duplicate assemblies of set, the state entirely powering on and running, two assemblies carry out data acquisition, data process simultaneously and calculate, simply master component serves as output control task, two assembly real-time, interactives, must complete switching undisturbed when master-slave swap when.And hot standby component system is the detection components state simultaneously of switching at any time and reports.
nullEven if hot-backup system can not allow system work as machine in a flash，When master-slave swap when，Completion system communication message and data are needed to update and the synchronization of storehouse，Thus the speed that harshness realizes program execution is all consistent with stack segment content，Operation correctness in order to ensure hot-backup system，Total data needs real-time principal and subordinate mutual，Its exchange method has two kinds，The first is exactly conventional scanning and transmission method，This technology is widely used by the PLC of Schneider in early days，The content changed is transmitted the most before this after program scanning terminates，First the program scanning time is that program performs and the ageing of transmission，Why the execution cycle of this namely PLC has saying of time period definition，It not the most programs whole in PLC to be interacted every time，Reduce synchronous task to be combined，But when there is no program in PLC when，Main PLC can synchronize full content in the past，But do time this process is only a powering up or runs first and once compare.This hot standby mode is a kind of classics and hot spare method accurately, and this method continues into the present.
Second method is exactly asynchronous transport method, has two independent microprocessors at its circuit in asynchronous transmission, main system.First microprocessor performs program.Terminating in execution, all data are delivered to second microprocessor.This second all of transformation task of microprocessor processes, and first microprocessor performs next program scanning.Therefore, a microprocessor is carried out, and another kind is transmitted to the data of backup processor.Owing to this transmission from the data of primary processor secondary processor is asynchronous program scanning, its data transmission at any time, perform and system loading without affecting program.The mode of this hot standby asynchronous transmission is mono-technology of Contrologix of AB, in his redundant configuration, master-slave system is respectively arranged with three CPU, first CPU being just carried out program, second backboard CPU playing data/address bus exactly, 3rd is exactly the CPU of synchronization module RM, so his task is dispensed in the middle of multiple CPU.
In order to solve above-mentioned technical problem, the technical scheme that this utility model is used is: a kind of Reconstructed redundancy air-conditioning, including water tank, water in water tank carries out heat exchange by main circulation pump and brazing plate type heat exchanger, brazing plate type heat exchanger, main gas-liquid separator, main compressor, air cooling fin formula heat exchanger, horizontal reservoir, is in turn connected to form closed loop heat-exchange system by pipeline between main device for drying and filtering and main electric expansion valve.Water in water tank carries out heat exchange by brazing plate type heat exchanger and closed loop heat-exchange system, and this closed loop heat-exchange system is existing water-cooled heat-exchange system, repeats no more here.
It is parallel with from circulating pump on main circulation pump, all the water in water tank can be extracted out from circulating pump and main circulation pump, and to be switched from circulating pump or main circulation pump by control system be that whole system supplies water.
It is parallel with on main gas-liquid separator and is parallel with on gas-liquid separator, main compressor from compressor, realize different Component compositions by control system, have four kinds of combinations: one, main gas-liquid separator and the combination from compressor；Two, main gas-liquid separator and the combination of main compressor；Three, from the combination of gas-liquid separator Yu main compressor；Four, from gas-liquid separator and the combination from compressor, switching different combinations by control system, four kinds of combinations all can meet the work requirements of closed loop heat-exchange system.
It is parallel with on main DC brushless motor from DC brushless motor, main DC brushless motor and be respectively arranged with the axial flow blower that air cooling fin formula heat exchanger is dispelled the heat from DC brushless motor, switching main DC brushless motor by control system drives the axial flow blower installed on it to be that air cooling fin formula heat exchanger dispels the heat, or drives the axial flow blower installed it to be the heat radiation of air cooling fin formula heat exchanger from DC brushless motor.
It is parallel with on main device for drying and filtering from device for drying and filtering, main electric expansion valve is parallel with from electric expansion valve, realizes different Component compositions by control system, have four kinds of combinations: one, main device for drying and filtering and the combination from electric expansion valve；Two, main device for drying and filtering and the combination of main electric expansion valve；Three, from the combination of device for drying and filtering Yu main electric expansion valve；From device for drying and filtering and the combination from electric expansion valve, switching different combinations by control system, four kinds of combinations all can meet the work requirements of closed loop heat-exchange system.
It is communicated with on horizontal reservoir and fills fluorine mouth, horizontal reservoir can be filled fluorine by filling fluorine mouth.
The water inlet end of brazing plate type heat exchanger is disposed with the leaving water temperature sensors of monitoring water tank leaving water temperature, and the water side of brazing plate type heat exchanger is disposed with the inflow temperature sensor of monitoring water tank water intake temperature, monitors heat exchange efficiency by the temperature of monitoring Inlet and outlet water.
Brazing plate type heat exchanger is placed in one end of closed loop system and is disposed with refrigerating evaporator outlet temperature sensor, brazing plate type heat exchanger is placed in the other end of closed loop system and is disposed with and heats evaporator outlet temperature sensor, refrigerating evaporator outlet temperature sensor and heat the heat exchange efficiency that evaporator outlet temperature sensor can be used to monitor closed loop heat-exchange system at brazing plate type heat exchanger.
Inspiratory pressure sensor and suction temperature sensor it is disposed with between main gas-liquid separator and the inlet end of main compressor, main gas-liquid separator and be disposed with inspiratory pressure sensor and suction temperature sensor between the inlet end of compressor, from being disposed with inspiratory pressure sensor and suction temperature sensor between gas-liquid separator and the inlet end of main compressor, from gas-liquid separator and be disposed with inspiratory pressure sensor and suction temperature sensor between the inlet end of compressor, inspiratory pressure sensor and suction temperature sensor it is respectively arranged with on the branch road of each combination, no matter control system is switched on that branch road, all can realize the pressure of inspiration(Pi) to whole closed loop heat-exchange system and the control of suction temperature.
The exhaust end of main compressor merges with the exhaust end from compressor, merge and be disposed with back pressure transducer and exhaust gas temperature sensor between end and air cooling fin formula heat exchanger, back pressure transducer and exhaust gas temperature sensor can monitor pressure at expulsion and delivery temperature, it is achieved the control to whole closed loop heat-exchange system.
This utility model has the advantages that relative to prior art
One, during design, carry out equipment redundancy configuration according to reliability height, reduce manufacturing cost.
Two, when system is run, each spare unit all uses hot standby pattern, and it is short that system cuts the machine time.
Three, when one or more equipment fault all occurs in active and standby refrigeration system, damage so long as not identical device simultaneously, control system can rebuild a set of new refrigeration subsystem, thus utilizes existing equipment to improve system global reliability, improves the system entirety uptime.
Four, this Analysis of Nested Design thinking can be applicable to various water-cooled, air-cooled or double low-temperature receiver air-conditioning, ensures equipment reliably working, extends maintenance period.
Accompanying drawing explanation
Fig. 1 is existing redundancy air conditioning system System Control Figure under supporting without Reconstructed function.
Fig. 2 is equipment pie graph of the present utility model.
In figure, 1 is brazing plate type heat exchanger, 2 is air cooling fin formula heat exchanger, 3 is horizontal reservoir, 4 is main circulation pump, 5 is main gas-liquid separator, 6 is main compressor, 7 is main DC brushless motor, 8 is main device for drying and filtering, 9 is main electric expansion valve, 10 is from circulating pump, 11 is from gas-liquid separator, 12 is from compressor, 13 is from DC brushless motor, 14 is from device for drying and filtering, 15 is from electric expansion valve, 16 is axial flow blower, 17 for filling fluorine mouth, 18 is leaving water temperature sensors, 19 is inflow temperature sensor, 20 is refrigerating evaporator outlet temperature sensor, 21 for heating evaporator outlet temperature sensor, 22 inspiratory pressure sensors, 23 is suction temperature sensor, 24 is back pressure transducer, 25 is exhaust gas temperature sensor.
Detailed description of the invention
In order to make technical problem to be solved in the utility model, technical scheme and beneficial effect clearer, below in conjunction with drawings and Examples, this utility model is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain this utility model, is not used to limit this utility model.
As shown in Figure 2, a kind of Reconstructed redundancy air-conditioning, including water tank, water in water tank carries out heat exchange by main circulation pump 4 and brazing plate type heat exchanger 1, one end of brazing plate type heat exchanger 1 is passed through the pipeline charging aperture successively with main gas-liquid separator 5, main compressor 6, air cooling fin formula heat exchanger 2, horizontal reservoir 3, main device for drying and filtering 8 and main electric expansion valve 9 and is connected, the discharging opening of main electric expansion valve 9 is connected with the other end of brazing plate type heat exchanger 1 by pipeline, thus forms closed loop heat-exchange system.Water in water tank carries out heat exchange by brazing plate type heat exchanger 1 and closed loop heat-exchange system, and this closed loop heat-exchange system is existing water-cooled heat-exchange system, repeats no more here.
Be parallel with from circulating pump 10 on main circulation pump 4, all the water in water tank can be extracted out from circulating pump 10 and main circulation pump 4, and by control system switch from circulating pump 10 or main circulation pump 4 be whole system water supply.
It is parallel with on main gas-liquid separator 5 and is parallel with on gas-liquid separator 11, main compressor 6 from compressor 12, realize different Component compositions by control system, have four kinds of combinations: one, main gas-liquid separator 5 and the combination from compressor 12；Two, main gas-liquid separator 5 and the combination of main compressor 6；Three, from the combination of gas-liquid separator 11 with main compressor 6；Four, from gas-liquid separator 11 and the combination from compressor 12, switching different combinations by control system, four kinds of combinations all can meet the work requirements of closed loop heat-exchange system.
It is parallel with on main DC brushless motor 7 from DC brushless motor 13, main DC brushless motor 7 and be respectively arranged with the axial flow blower 16 that air cooling fin formula heat exchanger 2 is dispelled the heat from DC brushless motor 13, switching main DC brushless motor 7 by control system drives the axial flow blower 16 installed on it to dispel the heat for air cooling fin formula heat exchanger 2, or drives the axial flow blower 16 installed it to dispel the heat for air cooling fin formula heat exchanger 2 from DC brushless motor 13.
It is parallel with on main device for drying and filtering 8 and is parallel with from electric expansion valve 15 on device for drying and filtering 14, main electric expansion valve 9, realize different Component compositions by control system, have four kinds of combinations: one, main device for drying and filtering 8 and the combination from electric expansion valve 15；Two, main device for drying and filtering 8 and the combination of main electric expansion valve 9；Three, from the combination of device for drying and filtering 14 with main electric expansion valve 9；From device for drying and filtering 14 and the combination from electric expansion valve 15, switching different combinations by control system, four kinds of combinations all can meet the work requirements of closed loop heat-exchange system.
It is communicated with on horizontal reservoir 3 and fills fluorine mouth 17, horizontal reservoir 3 can be filled fluorine by filling fluorine mouth 17.
The water inlet end of brazing plate type heat exchanger 1 is disposed with the leaving water temperature sensors 18 of monitoring water tank leaving water temperature, the water side of brazing plate type heat exchanger 1 is disposed with the inflow temperature sensor 19 of monitoring water tank water intake temperature, monitors heat exchange efficiency by the temperature of monitoring Inlet and outlet water.
Brazing plate type heat exchanger 1 is placed in one end of closed loop system and is disposed with refrigerating evaporator outlet temperature sensor 20, brazing plate type heat exchanger 1 is placed in the other end of closed loop system and is disposed with and heats evaporator outlet temperature sensor 21, refrigerating evaporator outlet temperature sensor 20 and heat the heat exchange efficiency that evaporator outlet temperature sensor 21 can be used to monitor closed loop heat-exchange system at brazing plate type heat exchanger 1.
Inspiratory pressure sensor 22 and suction temperature sensor 23 it is disposed with between main gas-liquid separator 5 and the inlet end of main compressor 6, main gas-liquid separator 5 and be disposed with inspiratory pressure sensor 22 and suction temperature sensor 23 between the inlet end of compressor 12, inspiratory pressure sensor 22 and suction temperature sensor 23 it is disposed with between the inlet end of gas-liquid separator 11 and main compressor 6, from gas-liquid separator 11 and be disposed with inspiratory pressure sensor 22 and suction temperature sensor 23 between the inlet end of compressor 12, inspiratory pressure sensor 22 and suction temperature sensor 23 it is respectively arranged with on the branch road of each combination, no matter control system is switched on that branch road, all can realize the pressure of inspiration(Pi) to whole closed loop heat-exchange system and the control of suction temperature.
The exhaust end of main compressor 6 merges with the exhaust end from compressor 12, merge and be disposed with back pressure transducer 24 and exhaust gas temperature sensor 25 between end and air cooling fin formula heat exchanger 2, back pressure transducer 24 and exhaust gas temperature sensor 25 can monitor pressure at expulsion and delivery temperature, it is achieved the control to whole closed loop heat-exchange system.
Reconstructed its operation principle of redundancy air-conditioning is consistent with air-conditioning work principle, but its composition is different from common redundancy air-conditioning, and Reconstructed redundancy Air-conditioner design promotes the overall non-failure operation time of air conditioning system.
Common redundancy air-conditioning uses two set complete job systems, and each independent, two overlap between control systems or have communication, realize system when main system fault by artificial or programme-control and switch, it is achieved active-standby mode.
Reconstructed redundancy air-conditioning is in inner components is constituted, redundancy backup is carried out according to part reliability height, as a example by the cold air-conditioner host of liquid, the cold main frame of nonredundancy liquid is made up of water tank, water pump, compressor, condensation fan, condenser etc., in Reconstructed redundant configuration, the critical component such as compressor, water pump is carried out redundancy backup, and condenser, water tank belong to highly reliable parts, redundancy backup uses collaborative share pattern.
Reconstruct is to utilize control system again to be merged by each set air conditioning system composition component, thus recreate the refrigeration system of complete set, this requires that control system can carry out running status to all component devices and monitor in real time, and the most each equipment room carries out according to mode of operation utilizing the interconnection controlling circuit with corresponding refrigeration pipe.
Assume to reconstruct water pump in redundancy-type air-conditioning refrigeration system one and equipment fault occurs; control system can be as system two fault-free can start refrigeration system two, as faulty in system two internal unit according to being set for next-step operation; then system two faulty equipment is judged; if not being water pump, the water pump in system two is reintegrated in system one, re-starts system constructing; thus form the 3rd set refrigeration system; in two cover systems, fault of water pump, then make shutdown and process.
The refrigeration host computer apparatus logic figure that Fig. 2 is is design basis band recombination function with the cold refrigeration host computer of liquid, in whole system, to circulating pump, electric expansion valve, device for drying and filtering, axial flow blower 16, DC brushless motor 13, compressor and gas-liquid separator have done Hot Spare, respective sensor and control valve it is respectively provided with on cross link, all devices is monitored by control system in real time, all devices is in "on" position, identical device backups each other, when normally working, the parts of startup optimization are master unit, after some time (system arranges or manually arranges), master unit is out of service, spare unit puts into operation.When refrigeration system there being part (circulating pump, electric expansion valve, device for drying and filtering, axial flow blower 16, DC brushless motor 13, compressor and gas-liquid separator) break down, the parts being in Hot Spare can put into operation in time, and the valve body on relevant link will be opened and closed by control system as required.
In this set refrigeration system, when control system ability is enough, and refrigeration subsystem non-common equipment can infinitely expand in theory, as alternate device, to ensure the highly reliable effective operation of equipment.
It addition, according to the demand of reliability, many set redundant component systems can be configured and carrys out corresponding design.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all any amendment, equivalent and improvement etc. made within spirit of the present utility model and principle, in the range of all should wrapping in this utility model.
Claims (6)
1. a Reconstructed redundancy air-conditioning, it is characterized in that, including water tank, water in water tank carries out heat exchange by main circulation pump (4) and brazing plate type heat exchanger (1), is in turn connected to form closed loop heat-exchange system by pipeline between brazing plate type heat exchanger (1), main gas-liquid separator (5), main compressor (6), air cooling fin formula heat exchanger (2), horizontal reservoir (3), main device for drying and filtering (8) and main electric expansion valve (9)；
It is parallel with from circulating pump (10) on described main circulation pump (4)；
It is parallel with from gas-liquid separator (11) on described main gas-liquid separator (5)；
It is parallel with from compressor (12) on described main compressor (6)；
It is parallel with from DC brushless motor (13) on main DC brushless motor (7), main DC brushless motor (7) and be respectively arranged with the axial flow blower (16) that air cooling fin formula heat exchanger (2) is dispelled the heat from DC brushless motor (13)；
It is parallel with from device for drying and filtering (14) on described main device for drying and filtering (8)；
It is parallel with from electric expansion valve (15) on described main electric expansion valve (9).
A kind of Reconstructed redundancy air-conditioning the most according to claim 1, it is characterised in that be communicated with on described horizontal reservoir (3) and fill fluorine mouth (17).
A kind of Reconstructed redundancy air-conditioning the most according to claim 2, it is characterized in that, the water inlet end of described brazing plate type heat exchanger (1) is disposed with the leaving water temperature sensors (18) of monitoring water tank leaving water temperature, and the water side of brazing plate type heat exchanger (1) is disposed with the inflow temperature sensor (19) of monitoring water tank water intake temperature.
A kind of Reconstructed redundancy air-conditioning the most according to claim 3, it is characterized in that, described brazing plate type heat exchanger (1) is placed in one end of closed loop system and is disposed with refrigerating evaporator outlet temperature sensor (20), and described brazing plate type heat exchanger (1) is placed in the other end of closed loop system and is disposed with and heats evaporator outlet temperature sensor (21).
A kind of Reconstructed redundancy air-conditioning the most according to claim 4, it is characterized in that, inspiratory pressure sensor (22) and suction temperature sensor (23) it is disposed with between described main gas-liquid separator (5) and the inlet end of main compressor (6), described main gas-liquid separator (5) and be disposed with inspiratory pressure sensor (22) and suction temperature sensor (23) between the inlet end of compressor (12), described between the inlet end of gas-liquid separator (11) and main compressor (6), it is disposed with inspiratory pressure sensor (22) and suction temperature sensor (23), described from gas-liquid separator (11) and be disposed with inspiratory pressure sensor (22) and suction temperature sensor (23) between the inlet end of compressor (12).
A kind of Reconstructed redundancy air-conditioning the most according to claim 5, it is characterized in that, the exhaust end of described main compressor (6) merges with the exhaust end from compressor (12), merges and is disposed with back pressure transducer (24) and exhaust gas temperature sensor (25) between end and air cooling fin formula heat exchanger (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620091540.XU CN205619620U (en) | 2016-01-29 | 2016-01-29 | Redundant air conditioner of reconsitution type |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620091540.XU CN205619620U (en) | 2016-01-29 | 2016-01-29 | Redundant air conditioner of reconsitution type |
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| CN205619620U true CN205619620U (en) | 2016-10-05 |
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| CN201620091540.XU Withdrawn - After Issue CN205619620U (en) | 2016-01-29 | 2016-01-29 | Redundant air conditioner of reconsitution type |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105627533A (en) * | 2016-01-29 | 2016-06-01 | 郑瑾 | Reconstructed redundant air conditioner |
| CN109506330A (en) * | 2018-11-12 | 2019-03-22 | 珠海格力电器股份有限公司 | A kind of dual system air conditioner and its load control method |
-
2016
- 2016-01-29 CN CN201620091540.XU patent/CN205619620U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105627533A (en) * | 2016-01-29 | 2016-06-01 | 郑瑾 | Reconstructed redundant air conditioner |
| CN105627533B (en) * | 2016-01-29 | 2018-06-15 | 郑瑾 | Reconstructed redundancy air-conditioning |
| CN109506330A (en) * | 2018-11-12 | 2019-03-22 | 珠海格力电器股份有限公司 | A kind of dual system air conditioner and its load 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: 20161005 Effective date of abandoning: 20180615 |