CN201583048U - Heat pump water heater - Google Patents
Heat pump water heater Download PDFInfo
- Publication number
- CN201583048U CN201583048U CN2009202619928U CN200920261992U CN201583048U CN 201583048 U CN201583048 U CN 201583048U CN 2009202619928 U CN2009202619928 U CN 2009202619928U CN 200920261992 U CN200920261992 U CN 200920261992U CN 201583048 U CN201583048 U CN 201583048U
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- pipeline
- magnetic valve
- water tank
- tank module
- condenser
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Abstract
The utility model discloses a heat pump water heater, which comprises a compressor, a water tank module, an evaporator, and a condenser which are connected in series by a pipeline to form a refrigerating system flow loop; a temperature controlling solenoid valve is arranged on a pipeline between the compressor and the water tank module; a pipeline of a first solenoid valve is arranged on a pipeline of the temperature controlling solenoid valve and the water tank module in parallel; the heat pump water heater further comprises a control unit which is used for controlling the opening of the temperature controlling solenoid valve and the closing of the first solenoid valve according to the water temperature in the water tank module in the refrigerating mode, so as to lead the water tank module to cool a refrigeration agent in a cooling pipeline in advance. As the refrigerating system flow in the prior art is changed, the water tank module is adopted for cooling the refrigeration agent in advance, the pressure and temperature of the refrigeration agent are reduced before passing through the telescopic condenser, the effect of each main component in the different modes is further changed under different modes, and the heat dissipation effect of the outdoor side air-cooled type condenser is improved.
Description
Technical field
The utility model relates to the field of water heaters based on air-conditioning, and in particular, what improvement related to is a kind of Teat pump boiler.
Background technology
Air-conditioning is when refrigerating operaton, and condenser can give off a large amount of heats, and is discharged in the air; If utilize the heat give off to add hot water, then be equivalent to for people when enjoying air-conditioning, can provide free life hot water again; This The Application of Technology is referred to as Teat pump boiler.
Teat pump boiler of the prior art, as shown in Figure 1, in the refrigeration system loop of the cold-producing medium that flowing, include compressor 101, cross valve 102, cross valve 103, magnetic valve 104, water tank module 105, check valve 106, electric expansion valve (or capillary) 107, magnetic valve 109, evaporimeter 108, electric expansion valve (or capillary) 110, condenser 113; See that on the whole described water tank module 105, described evaporimeter 108 and described condenser 113 are connected in parallel by pipeline, switch and be connected with described compressor 101 by two cross valves 102 and 103 are set on pipeline; Wherein, on the pipeline of described water tank module 105, set gradually a described check valve 106 and electric expansion valve (or capillary) 107; One described magnetic valve 109 is set on the pipeline of described evaporimeter 108; One electric expansion valve (or capillary) 110 is set on the pipeline of described condenser 113, and is provided with the pipeline of magnetic valve 104 in the two ends parallel connection one of this electric expansion valve (or capillary) 110.
Present Teat pump boiler can be realized freezing, heats, hot water+refrigeration and four kinds of patterns of hot water:
1) refrigeration mode:
The refrigeration system flow process of Teat pump boiler under refrigeration mode in the prior art, as shown in Figure 2: compressor 101 → cross valve 102 → cross valve 103 → condenser, 113 → electric expansion valve (or capillary) 110 → magnetic valve 109 → evaporimeter 108 → cross valve 102 → compressor 101.In this process, cross valve 102 does not commutate, cross valve 103 commutations; Magnetic valve 104 cuts out, and magnetic valve 109 is opened; Water tank module 105 does not participate in work; Condenser 113, evaporimeter 108 carry out heat exchange with air.
2) heating mode:
The refrigeration system flow process of Teat pump boiler under heating mode in the prior art, as shown in Figure 3: compressor 101 → cross valve 102 → evaporimeter 108 → magnetic valve, 109 → electric expansion valve (or capillary) 110 → condenser 113 → cross valve 103 → compressor 101.In this process, cross valve 102 commutations, cross valve 103 does not commutate; Water tank module 105 does not participate in work; Magnetic valve 104 cuts out, and magnetic valve 109 is opened; Condenser 113, evaporimeter 108 carry out heat exchange with air.
3) hot water+refrigeration mode:
The refrigeration system flow process of Teat pump boiler under hot water+refrigeration mode in the prior art, as shown in Figure 4: compressor 101 → cross valve 102 → cross valve 103 → water tank module 105 → check valve, 106 → electric expansion valve (or capillary) 107 → magnetic valve 109 → evaporimeter 108 → cross valve 102 → compressor 101.In this process, cross valve 102 does not commutate, and cross valve 103 does not commutate; Magnetic valve 104 cuts out, and magnetic valve 109 is opened.Condenser 113 does not participate in work in this process, and the heat that cold-producing medium discharges is absorbed by water tank module 105, thereby improves the temperature of water; Water tank module 105 is equivalent to the effect of condenser 113, forms hot water after the water in the water tank module 105 is heated to uniform temperature; Be the indoor cold air that provides by evaporimeter 108, this air-conditioning that utilizes is to be discharged to airborne heat to add hot water originally, can play the effect of air-conditioning+water heater.
4) hot water pattern:
The refrigeration system flow process of Teat pump boiler under the hot water pattern in the prior art, as shown in Figure 5: compressor 101 → cross valve 102 → cross valve 103 → water tank module 105 → check valve, 106 → electric expansion valve (or capillary) 107 → magnetic valve 104 → condenser 113 → cross valve 103 → compressor 101.In this process, cross valve 102 does not commutate, and cross valve 103 does not commutate yet; Magnetic valve 109 cuts out, and magnetic valve 104 is opened; Evaporimeter 108 does not participate in work; At this moment the effect of condenser 113 is equal to evaporimeter 108, and for the user, Teat pump boiler at this moment can play the effect of water heater.
But, existing Teat pump boiler is in summer during independently supplying cold air, just under the refrigeration mode, just merely dispel the heat by the outside air cooled condenser, not only radiating effect is relatively poor, and too high when the outside temperature, be easy to cause compressor to jump machine when environment is abominable, thereby make air-conditioning out of service.
Therefore, prior art still haves much room for improvement and develops.
The utility model content
The purpose of this utility model is, is to provide a kind of Teat pump boiler, can improve the radiating effect of outside air cooled condenser, reduces compressor is jumped machine under hot environment probability.
The technical solution of the utility model is as follows:
A kind of Teat pump boiler comprises a compressor, an evaporimeter, a condenser and a water tank module; Wherein, described compressor, described water tank module, described evaporimeter and described condenser form a refrigeration system flow process loop by the pipeline series connection successively; On the pipeline between described compressor and the described water tank module temperature control electromagnetic is set, parallel connection one is provided with the pipeline of first magnetic valve on the pipeline of described temperature control electromagnetic and described water tank module; And a control module, be used for opening and described first closed electromagnetic valve in the described temperature control electromagnetic of refrigeration mode control, so that the described water tank module cold-producing medium in the cooling line in advance according to the water temperature in the described water tank module.
Described Teat pump boiler wherein, is provided with one the 3rd magnetic valve on the pipeline between described water tank module and the described evaporimeter, be used under the control of described control module, closes the pipeline between described water tank module and the described evaporimeter in refrigeration mode.
Described Teat pump boiler wherein, is provided with one the 4th magnetic valve on the pipeline between described evaporimeter and the described condenser, be used under the control of described control module, closes the pipeline between described evaporimeter and the described condenser in refrigeration mode.
Described Teat pump boiler, wherein, parallel connection one is provided with the pipeline of second magnetic valve on the pipeline of described the 3rd magnetic valve, described evaporimeter and described the 4th magnetic valve, be used under described control module control, in refrigeration mode, being communicated with the pipeline between described water tank module and the described condenser.
Described Teat pump boiler wherein, is provided with one the 7th magnetic valve on the pipeline between described condenser and the described compressor, be used under the control of described control module, closes the pipeline between described condenser and the described compressor in refrigeration mode.
Described Teat pump boiler, wherein, on the pipeline between described the 7th magnetic valve and the described condenser, and on the pipeline between described the 3rd magnetic valve and the described evaporimeter, in parallel one is provided with the pipeline of the 5th magnetic valve, be used under the control of described control module, in refrigeration mode, be communicated with the pipeline between described condenser and the described evaporimeter.
Described Teat pump boiler, wherein, on the pipeline between described evaporimeter and described the 4th magnetic valve, and on the pipeline between described the 7th magnetic valve and the described compressor, in parallel one is provided with the pipeline of the 6th magnetic valve, be used under the control of described control module, in refrigeration mode, be communicated with the pipeline between described evaporimeter and the described compressor.
Described Teat pump boiler wherein, is provided with a capillary on the pipeline between described condenser and described the 4th magnetic valve, be used for the liquid that becomes low-temp low-pressure after the liquid refrigerant throttling step-down of warm high pressure.
Described Teat pump boiler wherein, is provided with a check valve on the pipeline between described temperature control electromagnetic and the described water tank module, be used for stoping the cold-producing medium of this pipeline to flow backwards.
A kind of Teat pump boiler provided by the utility model, owing to changed refrigeration system flow process in the prior art, adopted the water tank module that cold-producing medium has been carried out cooling in advance, the condensing pressure and the condensation temperature of cold-producing medium before by tube-in-tube condenser, have been reduced, and then changed the effect of each critical piece under different mode, improved the radiating effect of outside air cooled condenser; Simultaneously, in summer during independently supplying cold air, also reduced compressor is jumped machine under hot environment probability.
Description of drawings
Fig. 1 is the refrigeration system principle schematic of Teat pump boiler in the prior art;
Fig. 2 is the refrigeration system schematic flow sheet of Teat pump boiler under refrigeration mode in the prior art;
Fig. 3 is the refrigeration system flow process circulation schematic diagram of Teat pump boiler under heating mode in the prior art;
Fig. 4 is the refrigeration system flow process circulation schematic diagram of Teat pump boiler under hot water+refrigeration mode in the prior art;
Fig. 5 is the refrigeration system flow process circulation schematic diagram of Teat pump boiler under the hot water pattern in the prior art;
Fig. 6 is the refrigeration system principle structure schematic diagram of Teat pump boiler in the utility model;
Fig. 7 a is the refrigeration system schematic flow sheet of Teat pump boiler under first refrigeration mode in the utility model;
Fig. 7 b is the refrigeration system flow process circulation schematic diagram of Teat pump boiler under second refrigeration mode in the utility model;
Fig. 8 is the refrigeration system flow process circulation schematic diagram of Teat pump boiler under heating mode in the utility model;
Fig. 9 is the refrigeration system flow process circulation schematic diagram of Teat pump boiler under hot water+refrigeration mode in the utility model;
Figure 10 is the refrigeration system flow process circulation schematic diagram of Teat pump boiler under the hot water pattern in the utility model.
The specific embodiment
Below with reference to accompanying drawing, the specific embodiment of the present utility model is described in detail.
A kind of Teat pump boiler in the utility model, one of its specific embodiment, as shown in Figure 6, in the refrigeration system loop of the cold-producing medium that flowing, comprise compressor 601, first magnetic valve 602, temperature control electromagnetic 603, check valve 604, water tank module 605, second magnetic valve 606, the 3rd magnetic valve 607, evaporimeter 608, the 4th magnetic valve 609, the 5th magnetic valve 610, the 6th magnetic valve 611, the 7th magnetic valve 612, condenser 613 and capillary 614; See that on the whole described compressor 601, described water tank module 605, described evaporimeter 608 and described condenser 613 are connected with the form of connecting by pipeline and form a refrigeration system flow process loop; On the pipeline between described compressor 601 and the described water tank module 605 temperature control electromagnetic 603 is set, parallel connection one is provided with the pipeline of first magnetic valve 606 on the pipeline of described temperature control electromagnetic 603 and described water tank module 605; And a control module (not shown), be used for opening and first magnetic valve 606 cuts out in the described temperature control electromagnetic 603 of refrigeration mode control, so that described water tank module 605 cold-producing medium in the cooling line in advance according to the water temperatures in the water tank module 605.
In the refrigeration of described Teat pump boiler, heat, in four kinds of patterns of hot water+refrigeration and hot water, as the utility model preferred embodiment, difference with the prior art mainly is refrigeration mode, when described Teat pump boiler freezes, under the control of described control module
On the one hand, close the 3rd magnetic valve 607 between described water tank module 605 and described evaporimeter 608, and close the 4th magnetic valve 609 between described evaporimeter 608 and described condenser 613, and open the pipeline that is provided with second magnetic valve 606; Because this pipeline is connected in parallel on the pipeline of described the 3rd magnetic valve 607, described evaporimeter 608 and described the 4th magnetic valve 609, so in refrigeration mode, can be communicated with the pipeline between described water tank module 605 and the described condenser 613;
On the other hand, close the 7th magnetic valve 612 between described condenser 613 and described compressor 601 and open the pipeline be provided with the 5th magnetic valve 610; Because of this pipeline one end connects pipeline between described the 7th magnetic valve 612 and the described condenser 613, the other end connects the pipeline between described the 3rd magnetic valve 607 and the described evaporimeter 608, so can be communicated with the pipeline between described condenser 613 and the described evaporimeter 608 in refrigeration mode;
Simultaneously, unlatching is provided with the pipeline of the 6th magnetic valve 611, because of this pipeline one end connects pipeline between described evaporimeter 608 and described the 4th magnetic valve 609, the other end connects the pipeline between described the 7th magnetic valve 607 and the described compressor 601, so can be communicated with the pipeline between described evaporimeter 608 and the described compressor 601 in refrigeration mode.
In preferred embodiment of the present utility model, described capillary 614 is used for producing pressure differential at the pipeline of described condenser 613 inputs on the pipeline between described condenser 613 and described the 4th magnetic valve 609; And described check valve 604 is used for stoping the cold-producing medium of this pipeline to flow backwards on the pipeline between described temperature control electromagnetic 603 and the described water tank module 605.
Below in conjunction with accompanying drawing the refrigeration system flow process of Teat pump boiler under these four kinds of patterns in the utility model is described respectively; Simultaneously also with temperature control electromagnetic in formal specification the utility model Teat pump boiler of form 603 and the on off state of each magnetic valve under these four kinds of patterns, shown in following table 1 and table 2:
Table 1: the control table of the temperature control electromagnetic of Teat pump boiler under various patterns
Table 2: the control combination table of the element of Teat pump boiler under various patterns
1) refrigeration mode:
Teat pump boiler can be realized two kinds of refrigeration modes in the utility model; Refrigeration system flow process under refrigeration (1) pattern is shown in accompanying drawing 7a: compressor 601 → temperature control electromagnetic 603 → check valve 604 → water tank module 605 → the second magnetic valves 606 → capillary 614 → condenser 613 → the 5th magnetic valve 610 → evaporimeters 608 → the 6th magnetic valve 611 → compressor 601.In this process, water tank module 605 has participated in work, has reduced the condensation temperature and the condensing pressure of cold-producing medium in advance, has improved radiating effect, has improved refrigerating capacity, has simultaneously also reduced compressor 601 is jumped machine under hot environment probability; First magnetic valve 602, the 3rd magnetic valve 607, the 4th magnetic valve 609 and the 7th magnetic valve 612 are closed, and second magnetic valve 606, the 5th magnetic valve 610 and the 6th magnetic valve 611 are opened; Condenser 613, evaporimeter 608 carry out heat exchange with air.
In addition, the refrigeration system flow process of Teat pump boiler under refrigeration (2) pattern in the utility model is shown in accompanying drawing 7b: compressor 601 → the first magnetic valves 602 → the second magnetic valves 606 → capillary 614 → condenser 613 → the 5th magnetic valve 610 → evaporimeters 608 → the 6th magnetic valve 611 → compressor 601.In this process, temperature-sensitive magnetic valve 603 detects water tank module 605 temperature and is higher than 50 ℃ Celsius, and valve body is closed; Water tank module 605 does not participate in work; The 3rd magnetic valve 607, the 4th magnetic valve 609 and the 7th magnetic valve 612 are closed, and first magnetic valve 602, second magnetic valve 606, the 5th magnetic valve 610 and the 6th magnetic valve 611 are opened; Condenser 613, evaporimeter 608 carry out heat exchange with air.In water tank, add and put the temperature that temperature sensing device is surveyed water in the water tank, if being higher than 50 ℃ then system Celsius, water temperature changes stream, the gas that compressor 601 is discharged directly enters into outside condenser 613 and cools off, the temperature that has guaranteed water tank can be not too high, the deterioration of the water quality that slowed down has prolonged service life of water tank.
2) heating mode:
The refrigeration system flow process of Teat pump boiler under heating mode in the utility model, as shown in Figure 8: compressor 601 → the first magnetic valves 602 → the 3rd magnetic valve 607 → evaporimeter 608 → the 4th magnetic valve 609 → capillaries 614 → condenser 613 → the 7th magnetic valve 612 → compressors 601; Water tank module 605 does not participate in work; Second magnetic valve 606, the 5th magnetic valve 610 and the 6th magnetic valve 611 are closed, and first magnetic valve 602, the 3rd magnetic valve 607, the 4th magnetic valve 609 and the 7th magnetic valve 612 are opened; Condenser 613, evaporimeter 608 carry out heat exchange with air.
3) hot water+refrigeration mode:
The refrigeration system flow process of Teat pump boiler under hot water+refrigeration mode in the utility model, as shown in Figure 9: compressor 601 → temperature control electromagnetic 603 → check valve 604 → water tank module 605 → the second magnetic valves 606 → capillary 614 → condenser 613 → the 5th magnetic valve 610 → evaporimeters 608 → the 6th magnetic valve 611 → compressor 601.In this process, temperature control electromagnetic 603 is if the water temperature that detects in the water tank module 605 is lower than 50 ℃ Celsius, then water tank module 605 participation work, otherwise valve body closes, and opens first magnetic valve 602, and water tank module 605 is out of service; First magnetic valve 602, the 3rd magnetic valve 607, the 4th magnetic valve 609 and the 7th magnetic valve 612 are closed, and second magnetic valve 606, the 5th magnetic valve 610 and the 6th magnetic valve 611 are opened; Condenser 613, evaporimeter 608 carry out heat exchange with air.
4) hot water pattern:
The refrigeration system flow process of Teat pump boiler under the hot water pattern in the utility model, as shown in Figure 10: compressor 601 → temperature control electromagnetic 603 → check valve 604 → water tank module 605 → the second magnetic valves 606 → capillary 614 → condenser 613 → the 7th magnetic valve 612 → compressors 601.In this process, temperature control electromagnetic 603 is if the water temperature that detects in the water tank module 605 is lower than 50 ℃ Celsius, then water tank module 605 participation work, otherwise valve body closes, and opens first magnetic valve 602, and water tank module 605 is out of service; First magnetic valve 602, the 3rd magnetic valve 607, the 4th magnetic valve 609, the 5th magnetic valve 610 and the 6th magnetic valve 611 are closed, and second magnetic valve 606 and the 7th magnetic valve 612 are opened; Evaporimeter 608 does not participate in work, and the effect of condenser 613 is equal to evaporimeter 608.
Need to prove, for Teat pump boiler, the fan in the NM air cooling system, and other parts such as water tank module middle sleeve formula heat-exchange device, water pump, Inlet and outlet water device and hygrosensor, be not improvement of the present utility model, do not repeat them here.
Should be understood that; for those of ordinary skills; can be improved according to the above description or conversion; for example; water temperature in the water tank module 605 is the boundary with 50 ℃ Celsius; can in 45 ℃ to 55 ℃ scopes Celsius, adjust according to actual conditions, and all these improvement and conversion all belong to the protection domain of the utility model claims.
Claims (9)
1. a Teat pump boiler comprises a compressor, an evaporimeter, a condenser and a water tank module; It is characterized in that described compressor, described water tank module, described evaporimeter and described condenser form a refrigeration system flow process loop by the pipeline series connection successively; On the pipeline between described compressor and the described water tank module temperature control electromagnetic is set, parallel connection one is provided with the pipeline of first magnetic valve on the pipeline of described temperature control electromagnetic and described water tank module; And a control module, be used for opening and described first closed electromagnetic valve in the described temperature control electromagnetic of refrigeration mode control, so that the described water tank module cold-producing medium in the cooling line in advance according to the water temperature in the described water tank module.
2. Teat pump boiler according to claim 1, it is characterized in that, one the 3rd magnetic valve is set on the pipeline between described water tank module and the described evaporimeter, is used under the control of described control module, in refrigeration mode, close the pipeline between described water tank module and the described evaporimeter.
3. Teat pump boiler according to claim 2, it is characterized in that, one the 4th magnetic valve is set on the pipeline between described evaporimeter and the described condenser, is used under the control of described control module, in refrigeration mode, close the pipeline between described evaporimeter and the described condenser.
4. Teat pump boiler according to claim 3, it is characterized in that, parallel connection one is provided with the pipeline of second magnetic valve on the pipeline of described the 3rd magnetic valve, described evaporimeter and described the 4th magnetic valve, be used under described control module control, in refrigeration mode, being communicated with the pipeline between described water tank module and the described condenser.
5. Teat pump boiler according to claim 4, it is characterized in that, one the 7th magnetic valve is set on the pipeline between described condenser and the described compressor, is used under the control of described control module, in refrigeration mode, close the pipeline between described condenser and the described compressor.
6. Teat pump boiler according to claim 5, it is characterized in that, on the pipeline between described the 7th magnetic valve and the described condenser, and on the pipeline between described the 3rd magnetic valve and the described evaporimeter, in parallel one is provided with the pipeline of the 5th magnetic valve, be used under the control of described control module, in refrigeration mode, be communicated with the pipeline between described condenser and the described evaporimeter.
7. Teat pump boiler according to claim 6, it is characterized in that, on the pipeline between described evaporimeter and described the 4th magnetic valve, and on the pipeline between described the 7th magnetic valve and the described compressor, in parallel one is provided with the pipeline of the 6th magnetic valve, be used under the control of described control module, in refrigeration mode, be communicated with the pipeline between described evaporimeter and the described compressor.
8. Teat pump boiler according to claim 7 is characterized in that, on the pipeline between described condenser and described the 4th magnetic valve capillary is set, and is used for the liquid that becomes low-temp low-pressure after the liquid refrigerant throttling step-down of warm high pressure.
9. according to arbitrary described Teat pump boiler in the claim 1 to 8, it is characterized in that, on the pipeline between described temperature control electromagnetic and the described water tank module, a check valve is set, be used for stoping the cold-producing medium of this pipeline to flow backwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202619928U CN201583048U (en) | 2009-12-24 | 2009-12-24 | Heat pump water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202619928U CN201583048U (en) | 2009-12-24 | 2009-12-24 | Heat pump water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201583048U true CN201583048U (en) | 2010-09-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202619928U Expired - Fee Related CN201583048U (en) | 2009-12-24 | 2009-12-24 | Heat pump water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201583048U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103032992A (en) * | 2011-10-05 | 2013-04-10 | 刘雄 | Refrigeration equipment of air conditioner |
| CN104344604A (en) * | 2013-07-30 | 2015-02-11 | 湖南蓝海能源科技有限公司 | High-temperature heat pump system on basis of multi-module coupling |
| CN110762791A (en) * | 2019-10-18 | 2020-02-07 | Tcl空调器(中山)有限公司 | Air conditioner outlet air temperature control method and system and storage medium |
-
2009
- 2009-12-24 CN CN2009202619928U patent/CN201583048U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103032992A (en) * | 2011-10-05 | 2013-04-10 | 刘雄 | Refrigeration equipment of air conditioner |
| CN104344604A (en) * | 2013-07-30 | 2015-02-11 | 湖南蓝海能源科技有限公司 | High-temperature heat pump system on basis of multi-module coupling |
| CN110762791A (en) * | 2019-10-18 | 2020-02-07 | Tcl空调器(中山)有限公司 | Air conditioner outlet air temperature control method and system and storage medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100915 Termination date: 20181224 |