CN115265006A - Automatic dust removal system of refrigerator condenser and control method - Google Patents
Automatic dust removal system of refrigerator condenser and control method Download PDFInfo
- Publication number
- CN115265006A CN115265006A CN202210816916.9A CN202210816916A CN115265006A CN 115265006 A CN115265006 A CN 115265006A CN 202210816916 A CN202210816916 A CN 202210816916A CN 115265006 A CN115265006 A CN 115265006A
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- Prior art keywords
- condenser
- refrigerator
- electromagnetic valve
- compressor
- condensing fan
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- 239000000428 dust Substances 0.000 title claims abstract description 57
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000009833 condensation Methods 0.000 claims abstract description 30
- 230000005494 condensation Effects 0.000 claims abstract description 30
- 239000003507 refrigerant Substances 0.000 claims abstract description 23
- 238000005057 refrigeration Methods 0.000 claims abstract description 11
- 238000004891 communication Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 6
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 238000004140 cleaning Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
- F25B39/04—Condensers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G15/00—Details
- F28G15/003—Control arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G7/00—Cleaning by vibration or pressure waves
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention relates to a refrigerator condenser. The automatic dust removal system comprises a refrigerator controller, a refrigeration system, an electromagnetic valve, a condensation fan and a condensation fan control assembly for controlling the rotating speed of the condensation fan. The refrigerating system comprises a refrigerant, a compressor and a condenser, and a condensing fan is arranged at the front end of the condenser close to the condenser. The electromagnetic valve is arranged between the exhaust pipe of the compressor and the air inlet end of the condenser. The compressor and the electromagnetic valve are connected with a refrigerator controller, the refrigerator controller controls the on-off of the compressor and the electromagnetic valve, when the electromagnetic valve is opened, the refrigerant normally flows, and when the electromagnetic valve is closed, the refrigerant stops flowing. The invention also relates to an automatic dust removal control method of the refrigerator condenser, which realizes the automatic dust removal effect of the condenser by means of the water hammer effect and reasonable logic control of the condensing fan, thereby enhancing the heat exchange efficiency of the condenser.
Description
Technical Field
The invention relates to a refrigerator condenser, in particular to an automatic dust removal system of the refrigerator condenser and a control method.
Background
The refrigerator condenser is a part of a refrigeration system, belongs to one type of heat exchangers, and can convert gas into liquid and quickly transfer heat in a heat exchange tube to air near the heat exchange tube. The forced convection condenser is arranged below the refrigerator and is generally arranged on the back of the refrigerator, low-temperature air on the periphery of an air inlet end is absorbed by the condensing fan, and high-temperature air generated by heat dissipation of the condenser is blown out from the outlet end, so that circulation is performed, the condenser is ensured to have good heat dissipation capacity, and the refrigerating system of the refrigerator has lower evaporation temperature.
Because the surfaces of the heat exchange tubes and the heat exchange fins of the refrigerator condenser are frequently ventilated, tiny particles in the air can enter the compressor bin, more dust is adhered to the surfaces of the heat exchange tubes and the heat exchange fins, after a period of time, the surfaces of the heat exchange tubes and the heat exchange fins are wrapped by the dust, the heat exchange efficiency is influenced, and the heat exchange tubes and the heat exchange fins can seriously cause refrigeration.
The traditional dust removal mode of the condenser is to completely disassemble the condenser for cleaning, and the disassembly and cleaning process is troublesome in operation. Therefore, the maintenance period of the condenser is long, the condenser is not in the optimal working state for a long time, and the heat exchange efficiency is reduced.
Disclosure of Invention
An object of the present invention is to provide an automatic dust removing system for a condenser of a refrigerator, which effectively solves the problem of troublesome dust removing operation of the conventional condenser.
In order to realize the purpose, the technical scheme provided by the invention is as follows:
an automatic dust removal system of a refrigerator condenser comprises a refrigerator controller, a refrigerating system, an electromagnetic valve, a condensation fan and a condensation fan control assembly used for controlling the rotating speed of the condensation fan.
The refrigeration system includes a refrigerant, a compressor, and a condenser.
The condensing fan is arranged at the front end of the condenser in close proximity to the condenser.
And the exhaust pipe of the compressor is connected with the air inlet end of the condenser.
The electromagnetic valve is arranged between the exhaust pipe of the compressor and the air inlet end of the condenser.
The compressor and the electromagnetic valve are both connected with the refrigerator controller, the switch of the compressor and the electromagnetic valve is controlled by the refrigerator controller, when the electromagnetic valve is opened, the refrigerant normally flows, and when the electromagnetic valve is closed, the refrigerant stops flowing.
Furthermore, the condensation fan control assembly comprises a condensation fan controller and a dust removal time judgment module, the dust removal time judgment module is in communication connection with the condensation fan controller, and the condensation fan controller is connected with the refrigerator controller.
Furthermore, the condensation fan controller is connected with the condensation fan, the condensation fan transmits pulse signals with different frequencies output at different rotating speeds to the condensation fan controller, and the condensation fan controller adjusts the rotating speed of the condensation fan.
The invention also aims to provide an automatic dust removal control method for a refrigerator condenser, which effectively solves the problem of troublesome dust removal operation of the traditional condenser.
An automatic dust removal control method of a refrigerator condenser is applied to the automatic dust removal system of the refrigerator condenser in the embodiment and comprises the following steps:
s01, a refrigerating system of the refrigerator normally runs, a condensing fan runs at a normal wind speed, an electromagnetic valve is opened, and a refrigerant normally flows in a heat exchange pipe of the condenser.
S02, starting an automatic dust removal function of the condenser, closing the electromagnetic valve, turning off the compressor after the compressor still normally operates for a certain time, stopping the flow of the refrigerant instantly, and generating high-frequency vibration on the condenser to enable dust attached to the condenser to fall.
S03, when the electromagnetic valve is closed in the step S02, the condensation fan control assembly adjusts the rotating speed of the condensation fan, so that the condensation fan is lifted for 500r/min on the basis of the normal rotating speed, and the dust with the falling tendency in the step S02 is blown off.
And S04, after the compressor is closed, closing the condensing fan after a certain time.
And S05, finishing dust removal, and closing a refrigerating system of the refrigerator.
Further, in step S02, the predetermined time is 2 seconds.
Further, in step S04, the fixed time is 60 seconds.
The beneficial technical effects of the invention are as follows:
by arranging the electromagnetic valve between the exhaust pipe of the compressor and the air inlet end of the condenser, when the opened electromagnetic valve is suddenly closed, the flowing refrigerant stops instantly, and the refrigerant can generate impact force on the pipe wall of the condenser, so that the condenser generates a high-frequency vibration phenomenon, namely a water hammer effect. The automatic dust removal effect of the condenser is realized by means of the water hammer effect and reasonable logic control of the condensing fan, so that the heat exchange efficiency of the condenser is enhanced.
Drawings
The invention is further described with reference to the following figures and detailed description.
FIG. 1 is a schematic structural diagram of an automatic dust removing system of a condenser for a refrigerator according to the present invention.
FIG. 2 is a flow chart of the automatic dust control method of the condenser of the refrigerator according to the present invention.
Detailed Description
As shown in fig. 1, an automatic dust removing system for a refrigerator condenser comprises a refrigerator controller 1, a refrigeration system, an electromagnetic valve 2, a condensing fan 3 and a condensing fan control assembly for controlling the rotating speed of the condensing fan. The refrigeration system comprises a refrigerant, a compressor 4 and a condenser 5. The condensing fan 3 is arranged at the front end of the condenser 5 close to the condenser 5, and the condensing fan 3 can directly blow air to the condenser 5. The exhaust pipe of the compressor 4 is connected with the air inlet end of the condenser 5. The solenoid valve 2 is arranged between the exhaust pipe of the compressor 4 and the air inlet end of the condenser 5. The compressor 4 and the electromagnetic valve 2 are both connected with the refrigerator controller 1, and the refrigerator controller 1 controls the on-off of the compressor 4 and the electromagnetic valve 2. When the solenoid valve 2 is opened, the refrigerant normally flows, and when the solenoid valve 2 is closed, the refrigerant stops flowing.
The condensation fan control assembly comprises a condensation fan controller 6 and a dust removal time judgment module 7, the dust removal time judgment module 7 is in communication connection with the condensation fan controller 6, and the condensation fan controller 6 is respectively connected with the refrigerator controller 1 and the condensation fan 3.
The condensing fan 3 rotates for a circle to generate a fixed number of pulse signals, and the frequency of the pulse signals output by the condensing fan 3 is different at different rotating speeds. The pulse signal is transmitted to the condensing fan controller 6 as a rotating speed feedback signal, and the condensing fan controller 6 adjusts the driving voltage to the condensing fan 3 according to the pulse signal so as to achieve the effect of adjusting the rotating speed of the condensing fan 3.
When the automatic dust removal function of the condenser is started, the refrigerator controller 1 controls the electromagnetic valve 2 to be closed, meanwhile, the refrigerator controller 1 transmits a signal to the condensing fan controller 6, and the condensing fan controller 6 starts to work after receiving the signal. The condensing fan controller 6 is set with a target frequency of the rotating speed of the condensing fan 3 (i.e. 500r/min is increased on the basis of the normal rotating speed, if the normal rotating speed of the condensing fan 3 is 2000r/min, the target rotating speed is 2500 r/min). After the condensing fan controller 6 starts to work, the condensing fan controller 6 monitors the pulse signal in real time, and adjusts the driving voltage of the condensing fan 3 in time to stabilize the feedback frequency at the target frequency, thereby realizing the speed-up control of the condensing fan 3.
The dust removal time judgment module 7 is in communication connection with the condensing fan controller 6. The dust removal time judgment module 7 starts timing when the condensing fan controller 6 starts working, and when the accumulated time reaches the set time, the dust removal time judgment module 7 transmits a signal to the condensing fan controller 6, so that the operation of the condensing fan 3 is stopped.
As shown in fig. 2, the embodiment further provides an automatic dust removal control method for a refrigerator condenser, which is applied to the automatic dust removal system for a refrigerator condenser. The control method comprises the following steps:
and S01, the refrigeration system of the refrigerator operates normally, the condensing fan 3 operates at a normal wind speed, the electromagnetic valve 2 is opened, and the refrigerant flows normally in the heat exchange tube of the condenser.
And S02, starting an automatic dust removal function of the condenser, closing the electromagnetic valve 2, and closing the compressor 4 after the compressor 4 still normally operates for 2 seconds. The flowing refrigerant is stopped instantaneously, the refrigerant generates an impact force on the pipe wall of the condenser 5, and the condenser 5 generates a high frequency vibration phenomenon, i.e., a water hammer effect. The dust adhering to the condenser 5 at this time has a tendency to fall down.
The condenser 5 high-frequency vibration is generated instantly, the vibration effect is eliminated quickly, the rigidity of the condenser 5 is high, and the vibration amplitude cannot damage the condenser 5 or a refrigerating system.
S03, when the electromagnetic valve 2 is closed in the step S02, the condensing fan control assembly adjusts the rotating speed of the condensing fan 3, so that the condensing fan 3 is lifted by 500r/min on the basis of the normal rotating speed, and the dust with the falling trend in the step S02 is blown off.
S04, after the compressor 4 is closed, closing the condensing fan 3 after 60 seconds;
and S05, finishing the automatic dust removal function of the condenser, and closing a refrigerating system of the refrigerator.
The working principle of the invention is as follows: the refrigeration system of the refrigerator normally operates, and the refrigerant normally circulates in the pipeline of the refrigeration system. At the moment, the automatic dust removal function of the condenser is started, the electromagnetic valve 2 is controlled to be closed by the refrigerator controller 1, meanwhile, the rotating speed of the condensing fan 3 is controlled to be increased by 500r/min by the condensing fan controller 6, and after the compressor 4 still normally operates for 2 seconds, the compressor 4 is controlled to be closed by the refrigerator controller 1. The flowing refrigerant is instantaneously stopped, the condenser 5 has a water hammer effect, and dust on the condenser 5 tends to fall. The condensing fan 3 blows air toward the condenser 5, blowing off dust having a tendency to fall on the condenser 5. The dust removal time determination module 7 starts timing when the condensing fan controller 6 starts working, and when the accumulated time reaches the set time of 62 seconds, the dust removal time determination module 7 transmits a signal to the condensing fan controller 6, and then stops the operation of the condensing fan 3. And when the automatic dust removal function of the condenser is finished, the refrigerating system of the refrigerator is closed. The invention realizes the automatic dust removal effect of the condenser 5 by means of the water hammer effect and the reasonable logic control of the condensing fan 3, solves the problems of the traditional dust removal mode of the condenser 5 being troublesome and the maintenance period of the condenser 5 being long, and effectively enhances the heat exchange efficiency of the condenser 5.
The parts which are not described in the invention can be realized by adopting or referring to the prior art.
It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art may make modifications, alterations, additions or substitutions within the spirit and scope of the present invention.
Claims (6)
1. An automatic dust removal system of a refrigerator condenser is characterized by comprising a refrigerator controller, a refrigeration system, an electromagnetic valve, a condensation fan and a condensation fan control assembly for controlling the rotating speed of the condensation fan;
the refrigeration system comprises a refrigerant, a compressor and a condenser;
the condensing fan is arranged at the front end of the condenser close to the condenser;
the exhaust pipe of the compressor is connected with the air inlet end of the condenser;
the electromagnetic valve is arranged between the exhaust pipe of the compressor and the air inlet end of the condenser;
the compressor and the electromagnetic valve are connected with a refrigerator controller, the refrigerator controller controls the on-off of the compressor and the electromagnetic valve, when the electromagnetic valve is opened, the refrigerant normally flows, and when the electromagnetic valve is closed, the refrigerant stops flowing.
2. The automatic dust removing system for the condenser of the refrigerator as claimed in claim 1, wherein the condensing fan control assembly comprises a condensing fan controller and a dust removing time determining module, the dust removing time determining module is in communication connection with the condensing fan controller, and the condensing fan controller is connected with the refrigerator controller.
3. The automatic dust removing system for the condenser of the refrigerator as claimed in claim 2, wherein the condensing fan controller is connected to the condensing fan, the condensing fan transmits pulse signals of different frequencies outputted at different rotation speeds to the condensing fan controller, and the condensing fan controller further adjusts the rotation speed of the condensing fan.
4. An automatic dust removal control method for a refrigerator condenser, which is applied to the automatic dust removal system for the refrigerator condenser of any one of claims 1 to 3, and comprises the following steps:
s01, a refrigerating system of the refrigerator normally runs, a condensing fan runs at a normal wind speed, an electromagnetic valve is opened, and a refrigerant normally flows in a heat exchange pipe of a condenser;
s02, starting an automatic dust removal function of the condenser, closing the electromagnetic valve, turning off the compressor after the compressor still normally operates for a certain time, stopping the flow of the refrigerant instantly, and generating high-frequency vibration on the condenser to enable dust attached to the condenser to generate a falling trend;
s03, when the electromagnetic valve is closed in the step S02, the condensation fan control assembly adjusts the rotating speed of the condensation fan, so that the condensation fan is lifted by 500r/min on the basis of the normal rotating speed, and the dust with the falling tendency in the step S02 is blown off;
s04, after the compressor is closed, closing the condensing fan after a certain time;
and S05, finishing dust removal, and closing a refrigerating system of the refrigerator.
5. The automatic dust-removing control method for the condenser of the refrigerator as claimed in claim 4, wherein the certain time is 2 seconds in the step S02.
6. The automatic dust-removing control method for the condenser of a refrigerator as claimed in claim 4, wherein the certain time period is 60 seconds in the step S04.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210816916.9A CN115265006A (en) | 2022-07-12 | 2022-07-12 | Automatic dust removal system of refrigerator condenser and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210816916.9A CN115265006A (en) | 2022-07-12 | 2022-07-12 | Automatic dust removal system of refrigerator condenser and control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115265006A true CN115265006A (en) | 2022-11-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210816916.9A Pending CN115265006A (en) | 2022-07-12 | 2022-07-12 | Automatic dust removal system of refrigerator condenser and control method |
Country Status (1)
| Country | Link |
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| CN (1) | CN115265006A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5287915A (en) * | 1990-12-26 | 1994-02-22 | Shell Oil Company | Heat exchanger and method for removing deposits from inner surfaces thereof |
| US5429077A (en) * | 1994-07-15 | 1995-07-04 | The Babcock & Wilcox Company | Water hammer rapper method and apparatus |
| CN103216891A (en) * | 2013-04-22 | 2013-07-24 | 四川长虹电器股份有限公司 | Dust removal system and dust removal method of air-conditioner outdoor unit |
| CN109654800A (en) * | 2018-12-20 | 2019-04-19 | 合肥美的电冰箱有限公司 | Control method, device and the refrigeration equipment of refrigeration equipment |
| CN110617668A (en) * | 2019-09-21 | 2019-12-27 | 广州市广谷制冷设备有限公司 | Intelligent refrigeration equipment for refrigeration house |
| CN113048836A (en) * | 2021-04-13 | 2021-06-29 | 江苏科技大学 | Water hammer pulsation descaling system applied to plate heat exchanger or complex pipeline |
| CN215832254U (en) * | 2021-06-06 | 2022-02-15 | 江苏星星冷链科技有限公司 | Horizontal refrigeration cabinet convenient for dust removal |
| CN114484727A (en) * | 2022-01-24 | 2022-05-13 | 宁波奥克斯电气股份有限公司 | Condenser dust removal method and device and air conditioner |
-
2022
- 2022-07-12 CN CN202210816916.9A patent/CN115265006A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5287915A (en) * | 1990-12-26 | 1994-02-22 | Shell Oil Company | Heat exchanger and method for removing deposits from inner surfaces thereof |
| US5429077A (en) * | 1994-07-15 | 1995-07-04 | The Babcock & Wilcox Company | Water hammer rapper method and apparatus |
| CN103216891A (en) * | 2013-04-22 | 2013-07-24 | 四川长虹电器股份有限公司 | Dust removal system and dust removal method of air-conditioner outdoor unit |
| CN109654800A (en) * | 2018-12-20 | 2019-04-19 | 合肥美的电冰箱有限公司 | Control method, device and the refrigeration equipment of refrigeration equipment |
| CN110617668A (en) * | 2019-09-21 | 2019-12-27 | 广州市广谷制冷设备有限公司 | Intelligent refrigeration equipment for refrigeration house |
| CN113048836A (en) * | 2021-04-13 | 2021-06-29 | 江苏科技大学 | Water hammer pulsation descaling system applied to plate heat exchanger or complex pipeline |
| CN215832254U (en) * | 2021-06-06 | 2022-02-15 | 江苏星星冷链科技有限公司 | Horizontal refrigeration cabinet convenient for dust removal |
| CN114484727A (en) * | 2022-01-24 | 2022-05-13 | 宁波奥克斯电气股份有限公司 | Condenser dust removal method and device and air conditioner |
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Application publication date: 20221101 |
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| RJ01 | Rejection of invention patent application after publication |