CN204084662U - Air conditioner - Google Patents
Air conditioner Download PDFInfo
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- CN204084662U CN204084662U CN201420372213.2U CN201420372213U CN204084662U CN 204084662 U CN204084662 U CN 204084662U CN 201420372213 U CN201420372213 U CN 201420372213U CN 204084662 U CN204084662 U CN 204084662U
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- air
- conditioning
- heat exchanger
- radiator
- cold
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- 239000003507 refrigerant Substances 0.000 claims abstract description 53
- 230000005514 two-phase flow Effects 0.000 claims abstract description 11
- 238000004378 air conditioning Methods 0.000 claims description 61
- 238000010438 heat treatment Methods 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 10
- 230000005494 condensation Effects 0.000 abstract description 14
- 238000009833 condensation Methods 0.000 abstract description 14
- 239000007788 liquid Substances 0.000 description 18
- 239000012071 phase Substances 0.000 description 14
- 238000005057 refrigeration Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000004891 communication Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 108010022579 ATP dependent 26S protease Proteins 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
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- Air Conditioning Control Device (AREA)
Abstract
The utility model relates to an air conditioner. The air conditioner comprises a radiator, a heat radiator and a control unit, wherein the radiator is used for radiating heat for a power component of the air conditioner; the refrigerant pipeline is positioned between the outdoor heat exchanger and the indoor heat exchanger and passes through the radiator; and a throttling device located on the refrigerant pipeline and used for controlling the refrigerant in the refrigerant pipeline to enable the refrigerant to pass through the radiator in a two-phase flow state. The utility model discloses can prevent to be located the radiator condensation or the frosting of air condensing units department.
Description
Technical field
The utility model relates to field of air conditioning, especially, relates to a kind of air-conditioning.
Background technology
Convertible frequency air-conditioner power component caloric value is very large, therefore needs to design larger radiator to dispel the heat to the power component of convertible frequency air-conditioner.Especially, frequency-variable module in convertible frequency air-conditioner plays the effect of a power transfer and amplification in whole frequency converter, the resistance of switching loss wherein and module itself can produce a large amount of heats in the course of the work, as shed by these heats not in time, the performance that will have a strong impact on frequency-variable module even burns frequency-variable module.
But, under many circumstances, due to restriction and the radiator material high cost in product structure space, cause the temperature of power component to be reduced to safe and reliable scope, propose the scheme utilizing refrigerant cools radiator for this reason.
Because frequency-variable module is in the electrical appliance kit of air-conditioner outdoor unit, in the process utilizing radiator to dispel the heat to it, if the temperature that can not control cold-producing medium well will cause radiator to occur the problem such as condensation or frosting, this will be by the reliability of serious harm power component.
Utility model content
The utility model proposes new technical scheme in view of at least one in above problem.
A technical problem to be solved in the utility model is to provide a kind of for preventing the technical scheme of air-conditioning power component radiator condensation or frosting.
According to an aspect of the present utility model, provide a kind of air-conditioning, comprising:
For the radiator that the power component of air-conditioning dispels the heat;
Refrigerant tubing between outdoor unit heat exchanger and indoor set heat exchanger, refrigerant tubing is through radiator;
Being arranged in cold-producing medium refrigerant tubing controlling refrigerant tubing makes cold-producing medium with the throttling arrangement of two phase flow state through radiator.
In embodiments more of the present utility model, throttling arrangement comprises the first throttle device that the outer tube temperature that the refrigerant tubing between outdoor unit heat exchanger and radiator detects according to the first temperature sensor in process of refrigerastion regulates its aperture;
Air-conditioning also comprises the first temperature sensor on machine heat exchanger disposed in the outdoor.
In embodiments more of the present utility model, throttling arrangement also comprise the refrigerant tubing between indoor set heat exchanger and radiator detects according to the second temperature sensor in heating operations in pipe temperature regulate the second throttling arrangement of its aperture;
Air-conditioning also comprises the second temperature sensor on machine heat exchanger disposed in the interior.
In embodiments more of the present utility model, throttling arrangement comprise the refrigerant tubing between indoor set heat exchanger and radiator detects according to the second temperature sensor in heating operations in pipe temperature regulate the second throttling arrangement of its aperture;
Air-conditioning also comprises the second temperature sensor on machine heat exchanger disposed in the interior.
In embodiments more of the present utility model, in the first temperature sensor machine heat exchanger disposed in the outdoor, cold-producing medium has just entered two phase region place at refrigerating state.
In embodiments more of the present utility model, in the second temperature sensor machine heat exchanger disposed in the interior, cold-producing medium is vented the position between saturation temperature ± 3 corresponding to high pressure degree Celsius when heating operation.
In embodiments more of the present utility model, throttling arrangement is electric expansion valve or short-tube restrictor device.
In embodiments more of the present utility model, air-conditioning is convertible frequency air-conditioner, and the power component of air-conditioning is air conditioning frequency converter.
In the technical solution of the utility model, because by throttling arrangement, the cold-producing medium controlled in refrigerant tubing passes through the radiator contacted with air-conditioning power component with gas-liquid two-phase stream mode, can effectively prevent from being positioned at outdoor radiator generation condensation or frost.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide further understanding of the present utility model, forms a application's part.In the accompanying drawings:
Fig. 1 is the structural representation of the air-conditioning according to the utility model embodiment.
Fig. 2 is the structural representation of the air-conditioning of another embodiment of the utility model.
Detailed description of the invention
Below with reference to accompanying drawings the utility model is described.It should be noted that following being described in is only explanatory and exemplary in essence, never as any restriction to the utility model and application or use.Unless stated otherwise, otherwise positioned opposite and numerical expression and the numerical value of the parts of setting forth in an embodiment and step do not limit scope of the present utility model.In addition, technology well known by persons skilled in the art, method and apparatus may not be discussed in detail, but are intended to the part becoming description in appropriate circumstances.
Fig. 1 is the structural representation of the air-conditioning according to the utility model embodiment.
As shown in Figure 1, the air-conditioning 10 in this embodiment can comprise radiator 102 that the power component for air-conditioning dispels the heat, refrigerant tubing 104 between outdoor unit heat exchanger and indoor set heat exchanger and be arranged in the cold-producing medium described refrigerant tubing controlling refrigerant tubing 104 and makes cold-producing medium with the throttling arrangement 106 of two phase flow state through radiator 102.Wherein, refrigerant tubing 104 is through radiator 102.
It is to be noted, this throttling arrangement 106 can between outdoor unit heat exchanger and radiator, also between indoor set heat exchanger and radiator, or between outdoor unit heat exchanger and radiator and between indoor set heat exchanger and radiator, throttling arrangement 106 can be all set.
In this embodiment, because by throttling arrangement, the cold-producing medium controlled in refrigerant tubing passes through the radiator contacted with air-conditioning power component with gas-liquid two-phase stream mode, therefore can effectively prevent from being positioned at outdoor radiator generation condensation or frost.
In an example, the air-conditioning refrigerant tubing that can comprise indoor apparatus of air conditioner, off-premises station and be connected between indoor set and off-premises station.Wherein, indoor set comprises indoor set heat exchanger, and off-premises station comprises compressor, outdoor unit heat exchanger, electrical appliance kit and four-way change-over valve (being called for short: cross valve).Four-way change-over valve is connected with indoor set heat exchanger with outdoor unit heat exchanger respectively by refrigerant tubing, and it selects compressor to discharge the flow direction of the liquid cold-producing medium of HTHP.Be provided with the controller controlling air-conditioner outdoor unit and run in electrical appliance kit, controller is provided with power component.Off-premises station is also provided with the radiator dispelled the heat to power component; Radiator and air-conditioning refrigerant pipeline communication, utilize the cold-producing medium of air-conditioning system to dispel the heat.The off-premises station cold-producing medium also comprised for controlling to enter radiator is in the throttling arrangement of two phase flow state.Because the temperature that the refrigerant temperature being in two phase flow state is generated heat higher than dew-point temperature and lower than power component, therefore, both can take away the heat of power component, also be unlikely to make power component temperature be low to moderate dew-point temperature and produce condensation.
Fig. 2 is the structural representation of the air-conditioning of another embodiment of the present invention.
As shown in Figure 2, the refrigerant tubing that the air-conditioning in this embodiment can comprise indoor apparatus of air conditioner, off-premises station and be connected between indoor set and off-premises station.Wherein, indoor set comprises indoor set heat exchanger, and off-premises station comprises compressor, outdoor unit heat exchanger, the second throttling arrangement, electrical appliance kit and four-way change-over valve.The control of the second throttling arrangement is identical with conventional inverter airconditioning control pattern; Be provided with the controller controlling air-conditioner outdoor unit and run in electrical appliance kit, controller is provided with power component; Off-premises station is also provided with the radiator dispelled the heat to power component; Radiator and air-conditioning refrigerant pipeline communication, utilize the cold-producing medium of air-conditioning system to dispel the heat; Off-premises station also comprises between machine heat exchanger disposed in the interior and radiator and makes cold-producing medium with the first throttle device of two phase flow state through radiator for the cold-producing medium controlled in refrigerant tubing; Wherein, compressor, four-way change-over valve, outdoor unit heat exchanger, first throttle device, radiator, the second throttling arrangement and indoor set heat exchanger are connected in turn on refrigerant tubing.When this air-conditioning work is in refrigeration mode, when dispelling the heat to the power component of air-conditioning, dew condensation phenomenon can not be there is on a heat sink.
This air-conditioning also comprises the first temperature sensor on machine heat exchanger disposed in the outdoor, pipe place between saturation temperature ± 3 that when its position is positioned at refrigeration, outdoor discharge high pressure is corresponding DEG C, that is, cold-producing medium has just entered two phase region place at refrigerating state, and temperature is closest to the condensation temperature of kind of refrigeration cycle herein; Wherein, first throttle device is used for its aperture of pipe temperature adjustment of the outdoor unit heat exchanger detected according to the first temperature sensor in process of refrigerastion, to control the state of the cold-producing medium through radiator.
It is to be noted, when air-conditioning work is in refrigeration mode, relation between the aperture of the Guan Wenyu first throttle device of outdoor unit heat exchanger is: pipe Wen Wendu is higher, higher from the mass dryness fraction of outdoor unit heat exchanger cold-producing medium out, therefore, need the aperture turning first throttle device down, reduce the mass dryness fraction entering the cold-producing medium of radiator, to remain on suitable mass dryness fraction.Such as, regulate the aperture of first throttle device, controlled 50% ~ 80%, make the mass dryness fraction entering radiator between 0.3 ~ 0.5, and then the cold-producing medium that can ensure to enter radiator is two phase flow state.
The operation principle of this air-conditioning is: when operation of air conditioner is in refrigeration mode, enter in outdoor unit heat exchanger is the liquid cold-producing medium of HTHP, now, in order to realize refrigeration, outdoor unit heat exchanger plays the effect of condenser, condensation of refrigerant heat release becomes normal temperature high voltage liquid refrigerant, after the first throttle device being in throttle, the while that refrigerant temperature in refrigerant tubing declining again, pressure also can decline, now, because pressure drop can cause some liquid refrigerant to be converted to gaseous state, and then make the cold-producing medium through radiator form gas-liquid two-phase stream mode.Because the temperature being in the cold-producing medium of two phase flow state is higher than dew-point temperature and lower than the heating temp of power component, be therefore at the cold-producing medium through radiator the radiator generation dew condensation phenomenon that gas-liquid two-phase stream mode can prevent in process of refrigerastion effectively.
Again see Fig. 2, in an example, the air-conditioning refrigerant tubing that can comprise indoor apparatus of air conditioner, off-premises station and be connected between indoor set and off-premises station.Wherein, indoor set comprises indoor set heat exchanger, and off-premises station comprises compressor, outdoor unit heat exchanger, first throttle device, electrical appliance kit and four-way change-over valve.The control of first throttle device is identical with conventional inverter airconditioning control pattern; Be provided with the controller controlling air-conditioner outdoor unit and run in electrical appliance kit, controller is provided with power component; Off-premises station is also provided with the radiator dispelled the heat to power component; Radiator and air-conditioning refrigerant pipeline communication, utilize the cold-producing medium of air-conditioning system to dispel the heat.Off-premises station also comprises between machine heat exchanger disposed in the interior and radiator and makes cold-producing medium with second throttling arrangement of two phase flow state through radiator for the cold-producing medium controlled in refrigerant tubing; Wherein, compressor, four-way change-over valve, outdoor unit heat exchanger, first throttle device, radiator, the second throttling arrangement and indoor set heat exchanger are connected in turn on refrigerant tubing.When this air-conditioning work is in heating mode, when dispelling the heat to the power component of air-conditioning, frost can not be there is on a heat sink.
This air-conditioning also comprises the second temperature sensor on machine heat exchanger disposed in the interior, pipe place between saturation temperature ± 3 that when its position is in heating operation, exhaust high pressure is corresponding DEG C, wherein, the pipe temperature that second throttling arrangement is used for the indoor set heat exchanger detected according to the second temperature sensor in heating operations regulates its aperture, to control the state through the cold-producing medium of radiator, gas-liquid two-phase stream mode is at the cold-producing medium through radiator, both can dispel the heat to the power component of air-conditioning, the refrigerant temperature through radiator also can be prevented simultaneously too low and make the temperature of spreader surface be down to below dew-point temperature, cause on the hydrogenesis in radiator surrounding air to radiator and form the condensation even phenomenon of frosting.
It is to be noted, if when the temperature that the second temperature sensor detects is too low, such as, when the Guan Wen of the indoor set heat exchanger detected is lower than 30 DEG C, second throttling arrangement standard-sized sheet, do not produce throttling action, the second throttling arrangement is no longer lowered the temperature again to cold-producing medium, prevents due to the reduction again of refrigerant temperature and cause radiator frosting.In addition, if the Guan Wen that the second temperature sensor detects in heating operations is greater than 30 degrees Celsius, then the second throttling arrangement need regulate its aperture to control the state through the cold-producing medium of radiator.Such as, if the interior pipe Wen Wendu detected is higher, then suitably can turns the aperture of the second throttling arrangement down, so both can reduce the temperature of the cold-producing medium through radiator, some liquid refrigerant can be allowed again to be converted to gaseous state, to carry out formation gas-liquid two-phase stream mode.
In addition, heating under state, if outdoor temperature is lower, heat dispersal situations is good, and the state entering the cold-producing medium of radiator can remain gaseous state, and does not need to be controlled cold-producing medium for two-phase state by throttling.
The operation principle of this air-conditioning is: when operation of air conditioner is in heating mode, enter in indoor set heat exchanger is the liquid cold-producing medium of HTHP, now, in order to realize heating effect, indoor set heat exchanger plays the effect of condenser, the condensation of refrigerant heat release flowing through indoor set heat exchanger becomes normal temperature high voltage liquid refrigerant, after the second throttling arrangement being in throttle, the while that refrigerant temperature in refrigerant tubing declining again, pressure also can decline, now, because pressure drop can cause some liquid refrigerant to be converted to gaseous state, and then make the cold-producing medium through radiator form gas-liquid two-phase stream mode.
In addition, outdoor unit heat exchanger is being carried out in the process of defrost, the throttle style during refrigerating operaton of the throttle style of first throttle device and the second throttling arrangement and foregoing description is identical, is about the 40 DEG C heats can taking away power component about 80 DEG C by the temperature of the cold-producing medium of the second throttling arrangement.
In another example, air-conditioning can also comprise: the first temperature sensor on machine heat exchanger disposed in the outdoor; The second temperature sensor on machine heat exchanger disposed in the interior; Wherein, the outer tube temperature that first throttle device is used for detecting according to the first temperature sensor in process of refrigerastion regulates its aperture, is in gas-liquid two-phase stream mode to make the cold-producing medium through radiator; Its aperture of pipe temperature adjustment in second throttling arrangement is used for detecting according to the second temperature sensor in heating operations, is in gas-liquid two-phase stream mode to make the cold-producing medium through radiator.
Wherein, the first temperature sensor can just enter two phase region place at refrigerating state by cold-producing medium in machine heat exchanger disposed in the outdoor.
Second temperature sensor can be vented the position between saturation temperature ± 3 corresponding to high pressure degree Celsius by cold-producing medium in machine heat exchanger disposed in the interior when heating operation.
The temperature of the radiator dispelled the heat for power component can control in reliable temperature range by cold-producing medium by this embodiment; Owing to being provided with first throttle device and the second throttling arrangement, therefore condensation and frosting problem can not be produced when utilizing refrigerant cools radiator; The use of heat sink material can be reduced relative to traditional air conditioner components and parts radiator; Better heat-radiation effect; Can ensure that the operating temperature of each smd controller is between 60 ~ 70 degrees Celsius, effectively improves the operational reliability of components and parts.
It is to be noted, if the pipe Wen Wendu of the outdoor unit heat exchanger detected is higher, then higher from the mass dryness fraction of outdoor unit heat exchanger cold-producing medium out, therefore, by turning the aperture of first throttle device down, the mass dryness fraction entering the cold-producing medium of radiator can be reduced and remains in suitable scope to make its mass dryness fraction, such as, between 0.3 and 0.5, and then the cold-producing medium entering radiator is made to be in two phase flow state.
Cold-producing medium is introduced in radiator by above-described embodiment, make full use of single liquid phase stream of cold-producing medium or the large advantage of Heat transfer of gas-liquid two-phase coefficient, the heat that components and parts produce can be taken away fast, not only reduce the consumptive material of radiator, save material, when also ensure that components and parts work, temperature can not be too high simultaneously.Owing to decreasing the consumptive material of radiator, thus reduce the impact of radiator on air-conditioner outdoor unit air channel, can air quantity be increased to a certain extent.
The heat utilizing cold-producing medium to take away outdoor controller components and parts to produce, reduce radiator air forced-convection heat transfer, therefore electrical appliance kit can miniaturized, sealingization design, in the Novel cooling medium systems such as R32, particularly seal the security that electrical appliance kit design improves security appliance reliability and complete machine operation to a greater extent.
And whole air-conditioning system adopts two throttling arrangements to regulate flow and the state of cold-producing medium, there will not be radiator condensation or frost, ensure that components and parts reliability of operation and security when guaranteeing refrigeration, heating operation.
Above-mentioned throttling arrangement can be electric expansion valve or short-tube restrictor device, but is not limited to this, and it can be any device controlled refrigerant flow.Particularly, first throttle device and the second throttling arrangement can be above-mentioned in any one, and first throttle device and the second throttling arrangement can be any combination of said apparatus.
In one embodiment, air-conditioning is convertible frequency air-conditioner, and the power component of air-conditioning is air conditioning frequency converter.
In this description, each embodiment all adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, and part identical with similar between each embodiment can cross-reference.For device embodiment, due to itself and embodiment of the method basic simlarity, so description is fairly simple, relevant part can see the explanation of embodiment of the method part.
Although describe the utility model with reference to exemplary embodiment, should be understood that the utility model is not limited to above-mentioned exemplary embodiment.It will be obvious to those skilled in the art that and can revise above-mentioned exemplary embodiment under the condition not deviating from scope and spirit of the present utility model.The scope of appended claim should be endowed the widest explanation, to comprise all such amendments and equivalent 26S Proteasome Structure and Function.
Claims (8)
1. an air-conditioning, is characterized in that, comprising:
For the radiator that the power component of described air-conditioning dispels the heat;
Refrigerant tubing between outdoor unit heat exchanger and indoor set heat exchanger, described refrigerant tubing is through described radiator;
Being arranged in the cold-producing medium described refrigerant tubing controlling described refrigerant tubing makes described cold-producing medium with the throttling arrangement of two phase flow state through described radiator.
2. air-conditioning according to claim 1, is characterized in that,
Described air-conditioning also comprises the first temperature sensor be arranged on described outdoor unit heat exchanger;
Described throttling arrangement comprises the first throttle device that the outer tube temperature that the described refrigerant tubing between described outdoor unit heat exchanger and described radiator detects according to the first temperature sensor described in process of refrigerastion regulates its aperture.
3. air-conditioning according to claim 2, is characterized in that, described air-conditioning also comprises the second temperature sensor be arranged on described indoor set heat exchanger;
Described throttling arrangement also comprise the described refrigerant tubing between described indoor set heat exchanger and described radiator detects according to the second temperature sensor described in heating operations in pipe temperature regulate the second throttling arrangement of its aperture.
4. air-conditioning according to claim 1, is characterized in that, described air-conditioning also comprises the second temperature sensor be arranged on described indoor set heat exchanger;
Described throttling arrangement comprise the described refrigerant tubing between described indoor set heat exchanger and described radiator detects according to the second temperature sensor described in heating operations in pipe temperature regulate the second throttling arrangement of its aperture.
5. the air-conditioning according to Claims 2 or 3, is characterized in that, described first temperature sensor is arranged on cold-producing medium in described outdoor unit heat exchanger and has just entered two phase region place at refrigerating state.
6. air-conditioning according to claim 3, is characterized in that, described second temperature sensor is arranged on cold-producing medium in described indoor set heat exchanger and is vented position between saturation temperature ± 3 corresponding to high pressure degree Celsius when heating operation.
7. air-conditioning according to claim 1, is characterized in that, described throttling arrangement is electric expansion valve or short-tube restrictor device.
8. air-conditioning according to claim 1, is characterized in that, described air-conditioning is convertible frequency air-conditioner, and the power component of described air-conditioning is air conditioning frequency converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420372213.2U CN204084662U (en) | 2014-07-07 | 2014-07-07 | Air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420372213.2U CN204084662U (en) | 2014-07-07 | 2014-07-07 | Air conditioner |
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| Publication Number | Publication Date |
|---|---|
| CN204084662U true CN204084662U (en) | 2015-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420372213.2U Expired - Fee Related CN204084662U (en) | 2014-07-07 | 2014-07-07 | Air conditioner |
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| CN (1) | CN204084662U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104089346A (en) * | 2014-07-07 | 2014-10-08 | 珠海格力电器股份有限公司 | Air conditioner and cooling method for air conditioner power component |
| CN106949568A (en) * | 2017-03-29 | 2017-07-14 | 广东美的暖通设备有限公司 | The automatically controlled anti-condensation control method of air-conditioner coolant radiating and device |
| CN107036249A (en) * | 2017-05-05 | 2017-08-11 | 广东美的暖通设备有限公司 | Control method, equipment and air-conditioning for air-conditioning |
| CN107101336A (en) * | 2017-05-05 | 2017-08-29 | 广东美的暖通设备有限公司 | Convertible frequency air-conditioner and its frequency-variable module radiator condensation prevention control method |
-
2014
- 2014-07-07 CN CN201420372213.2U patent/CN204084662U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104089346A (en) * | 2014-07-07 | 2014-10-08 | 珠海格力电器股份有限公司 | Air conditioner and cooling method for air conditioner power component |
| CN106949568A (en) * | 2017-03-29 | 2017-07-14 | 广东美的暖通设备有限公司 | The automatically controlled anti-condensation control method of air-conditioner coolant radiating and device |
| CN107036249A (en) * | 2017-05-05 | 2017-08-11 | 广东美的暖通设备有限公司 | Control method, equipment and air-conditioning for air-conditioning |
| CN107101336A (en) * | 2017-05-05 | 2017-08-29 | 广东美的暖通设备有限公司 | Convertible frequency air-conditioner and its frequency-variable module radiator condensation prevention control method |
| CN107101336B (en) * | 2017-05-05 | 2019-06-25 | 广东美的暖通设备有限公司 | Convertible frequency air-conditioner and its frequency-variable module radiator condensation prevention control method |
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Granted publication date: 20150107 Termination date: 20210707 |
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| CF01 | Termination of patent right due to non-payment of annual fee |