CN104344551A - Air energy water heater, method for preventing frost formation and method for defrosting - Google Patents
Air energy water heater, method for preventing frost formation and method for defrosting Download PDFInfo
- Publication number
- CN104344551A CN104344551A CN201310344708.4A CN201310344708A CN104344551A CN 104344551 A CN104344551 A CN 104344551A CN 201310344708 A CN201310344708 A CN 201310344708A CN 104344551 A CN104344551 A CN 104344551A
- Authority
- CN
- China
- Prior art keywords
- temperature
- water heater
- standard
- air
- temperature sensor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Air Conditioning Control Device (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The embodiment of the invention discloses an air energy water heater. The air energy water heater comprises a casing, wherein a master controller, a compressor, a fan, a preheating device, a water temperature sensor, an environment temperature sensor and a coil temperature sensor are arranged in the casing; a display operator in communication connection with the master controller is arranged on the outer wall of the casing; the master controller is respectively and eclectically connected with the compressor, the fan, the preheating device, the water temperature sensor, the environment temperature sensor and the coil temperature sensor. The embodiment of the invention also discloses a method for the air energy water heater to prevent frost formation and a method for the air energy water heater to defrost. The air energy water heater has the characteristics of energy conservation, environment protection and high safety.
Description
Technical field
The present invention relates to a kind of air-source water heater, particularly relate to a kind of air-source water heater and the pre-method of antifrost, the method for defrosting.
Background technology
Air-source water heater be utilize air-conditioning heat principle, the heat absorbed in air by medium evaporation produces heat energy, has the advantage of solar water heater energy-saving and environmental protection, safety, solves again solar water heater and relies on sunlight to adopt heat and install the problem of inconvenience.Because air-source water heater is heated by medium and air exchange heat, electrical heating elements is not needed to contact with water, there is no the danger that electric heater leaks electricity, also eliminate the hidden danger that gas heater is poisoning and explode, more there is no the air pollution that fuel-oil water heater discharging waste gas causes.Just because of there is so many advantage, thus air-source water heater accept by users.Because air-source water heater is the thermodynamic cycle process constantly being absorbed heat → compressor compresses → condensation (release heat is to water) → throttling → evaporate again by medium (refrigerant 134a R22 R410A etc.) from air evaporation.When air-source water heater is in the process heated, air themperature is lower, and when water temperature is also low, one deck frost will be tied in evaporating heat exchanger surface, thus affects refrigeration system heat transfer effect.When present air-source water heater manufacturer is all very low by TEMP detection evaporating heat exchanger coil temperature when defrosting, drive compressor, stop blower fan, change refrigerant with four-way change-over valve commutation simultaneously and flow to, convert former evaporation endothermic to condensation heat release, thus realize evaporating heat exchanger defrosting.There is a problem in the method, when evaporation endothermic converts condensation heat release to, same former condensation heat release also converts evaporation endothermic to, and in air-source water heater defrost process, in water tank, heat energy can cooled system siphon away, and water temperature can decline.And at the end of defrosting, four-way changes valve and recovers the original refrigerant flow direction, in heat exchange manifold, cold and hot refrigerant neutralization, can lose a part of heat again.Whole defrost process thermal loss is very large, is unfavorable for energy-conservation.
Summary of the invention
Technical problem to be solved by this invention is, provides a kind of air-source water heater, has the feature of energy-saving and environmental protection, safety.
In order to solve the problems of the technologies described above, embodiments provide a kind of air-source water heater, comprising housing, in described housing, be provided with main controller, compressor, blower fan, preheating device, cooling-water temperature sensor, environment temperature sensor and coil temperature sensor; Described housing exterior walls is provided with the display operator communicated to connect with described main controller; Described main controller is electrically connected with described compressor, blower fan, preheating device, cooling-water temperature sensor, environment temperature sensor and coil temperature sensor respectively.
For the improvement of technique scheme, described cooling-water temperature sensor, environment temperature sensor and coil temperature sensor are R25 DEG C=5k Ω, B=3470 model.
Correspondingly, the embodiment of the present invention additionally provides the method for the pre-antifrost of a kind of air-source water heater, has the problem of prevention air-source water heater frosting in the process heated, thus also ensure that the heating effect of air-source water heater.
In order to solve the problems of the technologies described above, embodiments provide the method for the pre-antifrost of a kind of air-source water heater, comprising the steps:
According to the enthalpy difference experiment of air-source water heater, established standards water temperature T w1, standard ambient temperature Ta1, and by described standard water temperature Tw1 and standard ambient temperature Ta1 all stored in described main controller;
Run air-source water heater, described cooling-water temperature sensor detects in real time to the water temperature T w in air-source water heater, and described environment temperature sensor detects in real time to environment temperature Ta;
Reality is detected water temperature T w and actual testing environment temperature Ta compares with standard water temperature Tw1, environment temperature Ta1 respectively, described main controller determines whether to open preheating device or compressor, blower fan, to reach the object of pre-antifrost according to comparative result.
For the improvement of technique scheme, described standard water temperature Tw1 is: 15 DEG C of < Tw1 < 30 DEG C; Described standard ambient temperature Ta1 is: 5 DEG C of < Ta1 < 7 DEG C.
For the further improvement of technique scheme, described reality is detected water temperature T w and actual testing environment temperature Ta and compares with standard water temperature Tw1, environment temperature Ta1 respectively, be specially:
If Tw < is Tw1, and Ta < Ta1, then preheating device heating opened by described main controller;
If Tw > is Tw1+1 DEG C, then described main controller stops preheating device heating, opens described compressor and blower fan work.
Correspondingly, the embodiment of the present invention additionally provides the method for a kind of air-source water heater defrosting, can carry out defrost operation to air-source water heater, also can not loses heat in defrost process,
In order to solve the problems of the technologies described above, embodiments provide the method for a kind of air-source water heater defrosting, comprising the steps:
According to the enthalpy difference experiment of air-source water heater, coil temperature Tp2 after the defrosting of established standards environment temperature Ta2, standard frosting hour indicator pipe temperature Tp1 and standard, and by coil temperature Tp2 after the defrosting of described standard environment Ta2, standard frosting hour indicator pipe temperature Tp1 and standard all stored in described main controller;
Run air-source water heater, described environment temperature sensor detects in real time to environment temperature Ta, and described coil temperature sensor detects in real time to coil temperature Tp;
Actual testing environment temperature Ta and standard ambient temperature Ta2 is compared, reality is detected coil temperature Tp defrost with standard frosting hour indicator pipe temperature Tp1 and standard respectively after coil temperature Tp2 compare, described main controller is determined to open compressor and blower fan, to reach the object of defrosting according to comparative result.
For the improvement of technique scheme, described standard ambient temperature Ta2 is: 5 DEG C of < Ta2 < 7 DEG C; Described standard frosting hour indicator pipe temperature Tp1 is: 3 DEG C of < Tp1 < 4 DEG C; Coil temperature Tp2=0 DEG C after described standard defrosting.
For the further improvement of technique scheme, actual testing environment temperature Ta and actual testing environment coil temperature Tp is compared with coil temperature Tp1 when standard ambient temperature Ta2, frosting and the rear coil temperature Tp2 that defrosts respectively, is specially:
If Ta < is Ta2, Tp < Tp1, and after compressor continuous firing 3min, then described main controller stops described compressor, opens blower fan work;
If Tp > is Tp2, and described compressor out-of-work time > 3min, then described main controller opens described compressor and blower fan work.
Implement the embodiment of the present invention, there is following beneficial effect:
(1) environment temperature sensor, cooling-water temperature sensor and the coil temperature sensor installed due to described air-source water heater are directly connected with main controller, main controller detects when low ambient temperature and low water temperature at any time, the few frosting of air-source water heater can be prevented, and reduce knot, defrost cycle number of times;
(2) owing to not being utilize four-way change-over valve to change refrigerant to flow to during described air-source water heater defrosting, so refrigeration system thermal loss is little during defrosting, water tank water temperature also can not decline, energy-conservation comfortable again.
(3) described air-source water heater eliminates four reversal valves, provides cost savings, and also simplifies refrigeration system pipeline, is more convenient for producing in enormous quantities.
Accompanying drawing explanation
Fig. 1 is air-source water heater of the present invention structured flowchart in an embodiment;
Fig. 2 is the workflow diagram of the pre-antifrost of air-source water heater of the present invention;
Fig. 3 is the workflow diagram of air-source water heater of the present invention defrosting.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, the present invention is described in further detail.
Embodiment 1:
As shown in Figure 1, air-source water heater of the present invention, comprise housing 1, be positioned at the main controller 2 of housing 1, compressor 3, blower fan 4, preheating device 5, cooling-water temperature sensor 6, environment temperature sensor 7 and coil temperature sensor 8, be provided with at described housing 1 outer wall the display operator 9 communicated to connect with described main controller 2 simultaneously, described main controller 2 is as the core component of described air-source water heater, respectively with described compressor 3, blower fan 4, preheating device 5, cooling-water temperature sensor 6, environment temperature sensor 7 and coil temperature sensor 8 are electrically connected, whether work and completely to be controlled by described main controller 2, user then opens described air-source water heater by described display operator 9, and work in every information can be shown, such as water temperature, time etc.Wherein, that described cooling-water temperature sensor 6, environment temperature sensor 7 and coil temperature sensor 8 adopt is all R25 DEG C=5k Ω, and the sensor of B=3470 model has that precision is high, stable and reliable for performance, the feature of long service life.
Air-source water heater of the present invention has the feature of energy-saving and environmental protection, safety, simultaneously can also antifrost in advance, and concrete steps can the workflow diagram of composition graphs 2 be understood.
1) first need to carry out enthalpy difference experiment to described air-source water heater, thus established standards water temperature T w1=20 DEG C, standard ambient temperature Ta1=6 DEG C, and by described standard water temperature Tw1 and standard ambient temperature Ta1 all stored in described main controller 2;
2) open described air-source water heater, allow it normally work, then the water temperature T w in described cooling-water temperature sensor 6 pairs of air-source water heaters detects in real time, and described environment temperature sensor 7 couples of environment temperature Ta detect in real time;
3) described Tw and Tw1 is compared, and described Ta and Ta1 is compared, if comparative result is: Tw < 20 DEG C, and Ta < 6 DEG C, then the described preheating device 5 of described main controller 2 startup heats; If Tw > 21 DEG C, then described main controller 2 stops described preheating device 5 to heat, and opens described compressor 3 and blower fan 4 works.
The method utilizes air when the lower and water temperature of temperature is also lower, the then principle of easy frosting in described air-source water heater, thus the temperature Ta and water temperature T w that effectively controls environment, 20 DEG C are less than in environment temperature, and when water temperature is also less than 6 DEG C, then open preheating device 5 and carry out heating operation, thus promote environment temperature and water temperature, avoid the generation of frost.When described preheating device 5 continues in heating process, as long as environment temperature is more than 21 DEG C, then described main controller 2 closes down described preheating device 5, open described compressor 3 and blower fan 4 works, effectively can avoid the frosting problem in air-source water heater heating operations, thus also just ensure that the effect of its heat exchange.
Although the method for the pre-antifrost of above-described air-source water heater effectively can avoid frosting, but in the long use procedure of reality, still can frosting in described air-source water heater, thus the present invention also provides a kind of method that air-source water heater defrosts, and concrete steps the workflow diagram of composition graphs 3 can open understanding:
1) first need to carry out enthalpy difference experiment to air-source water heater, established standards environment temperature Ta2=6 DEG C, standard frosting hour indicator pipe temperature Tp1=3.5 DEG C and standard defrosting after coil temperature Tp2=0 DEG C, and by described standard water temperature Ta2, standard frosting hour indicator pipe temperature Tp1 and standard defrosting after coil temperature Tp2 all stored in described main controller 2;
2) open air-source water heater normally to run, described environment temperature sensor 7 couples of environment temperature Ta detect in real time, and described coil temperature sensor 8 couples of coil temperature Tp detect in real time;
3) actual testing environment temperature Ta and Ta2 is compared, actual coil temperature Tp and the Tp1 and Tp2 that detects compares, if Ta < 6 DEG C, Tp < 3.5 DEG C, and after compressor continuous firing 3min, then described main controller 2 stop described compressor 3, open blower fan 4 work; If Tp > 0 DEG C, and described compressor 3 out-of-work time > 3min, then described main controller 2 opens described compressor 3 and blower fan 4 works.
The above Defrost method is then preventing on the basis of defrosting before this, regardless of water temperature T w, but carries out the operation of compressor 3 and blower fan 4 unlatching in conjunction with coil temperature Tp.To avoid in defrost process hot loss of energy in water tank.
Embodiment 2:
The present embodiment and embodiment 1 difference are only:
The standard water temperature Tw1 of pre-antifrost is set as 25 DEG C, and standard ambient temperature Ta1 is set as 6.5 DEG C;
The standard ambient temperature Ta2 of defrosting is set as 6.5 DEG C, and standard frosting hour indicator pipe temperature Tp1 is set as 3.8 DEG C.
Relatively higher all than embodiment 1 of the temperature of described standard water temperature Tw1, standard ambient temperature Ta1, Ta2 and standard frosting hour indicator pipe temperature Tp1, its effect is substantially the same.
Embodiment 3:
The present embodiment and embodiment 1 difference are only:
The standard water temperature Tw1 of pre-antifrost is set as 18 DEG C, and standard ambient temperature Ta1 is set as 5.5 DEG C;
The standard ambient temperature Ta2 of defrosting is set as 5.5 DEG C, and standard frosting hour indicator pipe temperature Tp1 is set as 3.2 DEG C.
Relatively lower all than embodiment 1 of the temperature of described standard water temperature Tw1, standard ambient temperature Ta1, Ta2 and standard frosting hour indicator pipe temperature Tp1, its effect is substantially the same.
Above disclosedly be only a kind of preferred embodiment of the present invention, certainly can not limit the interest field of the present invention with this, therefore according to the equivalent variations that the claims in the present invention are done, still belong to the scope that the present invention is contained.
Claims (8)
1. an air-source water heater, comprises housing (1), it is characterized in that:
Main controller (2), compressor (3), blower fan (4), preheating device (5), cooling-water temperature sensor (6), environment temperature sensor (7) and coil temperature sensor (8) is provided with in described housing (1);
Described housing (1) outer wall is provided with the display operator (9) communicated to connect with described main controller (2);
Described main controller (2) is electrically connected with described compressor (3), blower fan (4), preheating device (5), cooling-water temperature sensor (6), environment temperature sensor (7) and coil temperature sensor (8) respectively.
2. air-source water heater according to claim 1, is characterized in that:
Described cooling-water temperature sensor (6), environment temperature sensor (7) and coil temperature sensor (8) are R25 DEG C=5k Ω, B=3470 model.
3. a method for the pre-antifrost of air-source water heater according to claim 1, is characterized in that, comprises as follows:
According to the enthalpy difference experiment of air-source water heater, established standards water temperature T w1, standard ambient temperature Ta1, and by described standard water temperature Tw1 and standard ambient temperature Ta1 all stored in described main controller (2);
Run air-source water heater, described cooling-water temperature sensor (6) detects in real time to the water temperature T w in air-source water heater, and described environment temperature sensor (7) detects in real time to environment temperature Ta;
Reality is detected water temperature T w and actual testing environment temperature Ta compares with standard water temperature Tw1, environment temperature Ta1 respectively, described main controller (2) determines whether to open preheating device (5) or compressor (3), blower fan (4), to reach the object of pre-antifrost according to comparative result.
4. the method for the pre-antifrost of air-source water heater according to claim 3, is characterized in that:
Described standard water temperature Tw1 is: 15 DEG C of < Tw1 < 30 DEG C;
Described standard ambient temperature Ta1 is: 5 DEG C of < Ta1 < 7 DEG C.
5. the method for the pre-antifrost of air-source water heater according to claim 3, is characterized in that:
Described reality is detected water temperature T w and actual testing environment temperature Ta compare with standard water temperature Tw1, environment temperature Ta1 respectively, is specially:
If Tw < is Tw1, and Ta < Ta1, then preheating device (5) heating opened by described main controller (2);
If Tw > is Tw1+1 DEG C, then described main controller (2) stops preheating device (5) heating, opens described compressor (3) and blower fan (4) work.
6. a method for air-source water heater defrosting according to claim 1, is characterized in that, comprise the steps:
According to the enthalpy difference experiment of air-source water heater, coil temperature Tp2 after the defrosting of established standards environment temperature Ta2, standard frosting hour indicator pipe temperature Tp1 and standard, and by coil temperature Tp2 after the defrosting of described standard ambient temperature Ta2, standard frosting hour indicator pipe temperature Tp1 and standard all stored in described main controller (2);
Run air-source water heater, described environment temperature sensor (7) detects in real time to environment temperature Ta, and described coil temperature sensor (8) detects in real time to coil temperature Tp;
Actual testing environment temperature Ta and standard ambient temperature Ta2 is compared, reality is detected coil temperature Tp defrost with standard frosting hour indicator pipe temperature Tp1 and standard respectively after coil temperature Tp2 compare, described main controller (2) is determined to open compressor (3) and blower fan (4), to reach the object of defrosting according to comparative result.
7. the method for air-source water heater defrosting according to claim 6, is characterized in that:
Described standard ambient temperature Ta2 is: 5 DEG C of < Ta2 < 7 DEG C;
Described standard frosting hour indicator pipe temperature Tp1 is: 3 DEG C of < Tp1 < 4 DEG C;
Coil temperature Tp2=0 DEG C after described standard defrosting.
8. the method for air-source water heater defrosting according to claim 6, is characterized in that:
Actual testing environment temperature Ta and actual testing environment coil temperature Tp is compared with coil temperature Tp1 when standard ambient temperature Ta2, frosting and the rear coil temperature Tp2 that defrosts respectively, is specially:
If Ta < is Ta2, Tp < Tp1, and after compressor continuous firing 3min, then described main controller (2) stops described compressor (3), opens blower fan (4) work;
If Tp > is Tp2, and described compressor (3) out-of-work time > 3min, then described main controller (2) opens described compressor (3) and blower fan (4) work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310344708.4A CN104344551B (en) | 2013-08-08 | 2013-08-08 | The method of air-source water heater and pre- antifrost, the method for defrosting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310344708.4A CN104344551B (en) | 2013-08-08 | 2013-08-08 | The method of air-source water heater and pre- antifrost, the method for defrosting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104344551A true CN104344551A (en) | 2015-02-11 |
| CN104344551B CN104344551B (en) | 2017-11-21 |
Family
ID=52500695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310344708.4A Active CN104344551B (en) | 2013-08-08 | 2013-08-08 | The method of air-source water heater and pre- antifrost, the method for defrosting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104344551B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106016871A (en) * | 2016-05-24 | 2016-10-12 | 昆明理工大学 | Method and device for restraining low-temperature running frosting of air source heat pump water heater |
| CN108286806A (en) * | 2017-01-09 | 2018-07-17 | 芜湖美的厨卫电器制造有限公司 | Electric heater and its control method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05272812A (en) * | 1992-03-26 | 1993-10-22 | Matsushita Electric Ind Co Ltd | Heat pump type hot water feeder |
| CN2703228Y (en) * | 2004-05-17 | 2005-06-01 | 扬州市华扬新能源有限公司 | Air source hot pump water heater |
| CN1818498A (en) * | 2006-02-27 | 2006-08-16 | 黄道德 | Hot-pump water heater with air source |
| GB2434196A (en) * | 2005-12-21 | 2007-07-18 | Martin Hook | Heating module and system controller for increasing the efficiency of heat pumps |
| CN2932208Y (en) * | 2005-08-26 | 2007-08-08 | 广东万和集团有限公司 | Heat pump water heater having auxiliary heating device |
| CN202993552U (en) * | 2012-11-08 | 2013-06-12 | 广东美的电器股份有限公司 | Heat-pump water heater, water tank and water tank liner |
-
2013
- 2013-08-08 CN CN201310344708.4A patent/CN104344551B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05272812A (en) * | 1992-03-26 | 1993-10-22 | Matsushita Electric Ind Co Ltd | Heat pump type hot water feeder |
| CN2703228Y (en) * | 2004-05-17 | 2005-06-01 | 扬州市华扬新能源有限公司 | Air source hot pump water heater |
| CN2932208Y (en) * | 2005-08-26 | 2007-08-08 | 广东万和集团有限公司 | Heat pump water heater having auxiliary heating device |
| GB2434196A (en) * | 2005-12-21 | 2007-07-18 | Martin Hook | Heating module and system controller for increasing the efficiency of heat pumps |
| CN1818498A (en) * | 2006-02-27 | 2006-08-16 | 黄道德 | Hot-pump water heater with air source |
| CN202993552U (en) * | 2012-11-08 | 2013-06-12 | 广东美的电器股份有限公司 | Heat-pump water heater, water tank and water tank liner |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106016871A (en) * | 2016-05-24 | 2016-10-12 | 昆明理工大学 | Method and device for restraining low-temperature running frosting of air source heat pump water heater |
| CN106016871B (en) * | 2016-05-24 | 2018-10-02 | 昆明理工大学 | A kind of method and its device inhibiting air source hot pump water heater cold operation frosting |
| CN108286806A (en) * | 2017-01-09 | 2018-07-17 | 芜湖美的厨卫电器制造有限公司 | Electric heater and its control method |
| CN108286806B (en) * | 2017-01-09 | 2021-01-08 | 芜湖美的厨卫电器制造有限公司 | Electric water heater and control method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104344551B (en) | 2017-11-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106322768B (en) | Water heater and control method thereof | |
| CN204730374U (en) | A kind of accumulating type air-conditioning system | |
| CN106931693B (en) | The defrosting control system and control method of air source heat pump or air-to-water heat pump | |
| CN104913415A (en) | Energy storage-type air conditioning system | |
| CN103900251A (en) | Instant heating type water heater | |
| CN203908148U (en) | Air conditioning system | |
| CN201363859Y (en) | Air conditioning unit | |
| CN105698382A (en) | Heat-pump water heater and controlling method thereof | |
| WO2017050073A1 (en) | Water chiller-heater unit of air cooled heat pump and defrosting control method therefor | |
| CN103900247A (en) | Instant water heater | |
| CN103900248B (en) | Immediately heating water heater | |
| CN202432683U (en) | Air source variable frequency heat pump water heater | |
| CN104344551A (en) | Air energy water heater, method for preventing frost formation and method for defrosting | |
| CN109682154A (en) | A kind of air cooling refrigerator evaporator defrosting system and control method | |
| CN107860132A (en) | A kind of phase-change heat-storage solar energy instant-heating hot pump system | |
| CN109974296A (en) | A kind of air energy water heater and its Defrost method | |
| CN107676858A (en) | heating system | |
| CN204535175U (en) | heat pump circulating system | |
| CN207751178U (en) | Cooling in summer recuperation of heat heat supply in winter heat pump hot-water system | |
| CN201382506Y (en) | Central air-conditioning system | |
| CN203052986U (en) | Instantaneous water heater | |
| CN203190625U (en) | Multi-purpose air energy water heater | |
| CN202008224U (en) | Directly-heated constant temperature type air energy water heater | |
| CN202648134U (en) | Hot-gas bypass defrosting type heat-pump water heater | |
| CN204880910U (en) | Air source heat pump coupling solar energy defrosting heating water system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20170817 Address after: 511400 Guangdong city of Guangzhou province Panyu District Shi Ji Zhen Jin Shan Cun CRE Animation Industrial Park No. B23 Applicant after: GZ AXEN HEATING TECHNOLOGIES Ltd. Address before: 511400, room 86, 1703 Tianhe North Road, Guangzhou, Tianhe District, Guangdong Applicant before: Li Xianbin |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230607 Address after: 511000 No. B23, Huachuang Animation Industrial Park, Jinshan Village, Shiji Town, Panyu District, Guangzhou City, Guangdong Province Patentee after: Guangzhou Wanjulong Technology Co.,Ltd. Address before: 511400 Huachuang Animation Industry Park B23, Jinshan Village, Shiji Town, Panyu District, Guangzhou City, Guangdong Province Patentee before: GZ AXEN HEATING TECHNOLOGIES Ltd. |
|
| TR01 | Transfer of patent right |