EP4585867A1 - Defrosting device and defrosting method - Google Patents
Defrosting device and defrosting methodInfo
- Publication number
- EP4585867A1 EP4585867A1 EP23862751.7A EP23862751A EP4585867A1 EP 4585867 A1 EP4585867 A1 EP 4585867A1 EP 23862751 A EP23862751 A EP 23862751A EP 4585867 A1 EP4585867 A1 EP 4585867A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- frost
- air
- filter component
- component
- defroster
- 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.)
- Pending
Links
Classifications
-
- 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
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
- F25B9/002—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant
- F25B9/004—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant the refrigerant being air
-
- 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
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
-
- 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
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
- F25D21/06—Removing frost
Definitions
- a defroster according to the present invention that achieves the above-described object includes a suction port through which air with adhered frost is sucked; a filter component to which the frost adheres and that separates the frost from the air; a first flow path through which the air, from which the frost is separated by the filter component, is transferred into an ultralow-temperature warehouse; and a discharge component that externally discharges the frost that has dropped from the filter component.
- a defrosting method that achieves the above-described object includes a suction step of sucking air with adhered frost through a suction port; a separation step of causing adhesion of the frost to a filter component and separating the frost from the air; a step of transferring the air, from which the frost is separated by the filter component, into an ultralow-temperature warehouse; and a discharge step of externally discharging the frost that has dropped from the filter component.
- Fig. 1 is a system diagram illustrating an ultralow-temperature refrigeration system 1 including a defroster 40 according to the embodiment of the present invention.
- Fig. 2 is a diagram illustrating the defroster 40 according to the present embodiment in a state in which frost adheres to a filter component 42.
- Fig. 3 is a diagram illustrating the defroster 40 according to the present embodiment in a state in which frost adhering to the filter component 42 has dropped due to its own weight.
- the ultralow-temperature refrigeration system 1 is used to cool, for example, a drug warehouse.
- a cooling target is not limited to a drug warehouse but may be a food warehouse or the like.
- the ultralow-temperature refrigeration system 1 includes an ultralow-temperature warehouse 10 in which a cooling target object is cooled and stored, a circulation path 20 that is connected to the ultralow-temperature warehouse 10 and through which air circulates, an air-refrigerant refrigerator 30 that supplies cooled air into the ultralow-temperature warehouse 10 by using air in the ultralow-temperature warehouse 10 as a refrigerant, and the defroster 40 that removes frost in air supplied from the air-refrigerant refrigerator 30 into the ultralow-temperature warehouse 10.
- Drugs are cooled and stored in the ultralow-temperature warehouse 10 as described above.
- An automatic conveyance device is used to perform unmanned conveyance of drugs into and out of the ultralow-temperature warehouse 10 where drugs are cooled and stored.
- the automatic conveyance device potentially does not normally operate when frost adheres to the automatic conveyance device, and thus frost adhering to cooled air returning into the ultralow-temperature warehouse 10 needs to be removed by the defroster 40 when the air-refrigerant refrigerator 30 is used.
- a suction port (not illustrated) for air circulating through the circulation path 20 and a blowoff port (not illustrated) through which air cooled by the air-refrigerant refrigerator 30 is blown out are disposed inside the ultralow-temperature warehouse 10.
- the internal temperature of the ultralow-temperature warehouse 10 is not particularly limited but is equal to or lower than -50°C. Since the internal temperature of the ultralow-temperature warehouse 10 is such an ultralow temperature, frost can be prevented from melting at the defroster 40 and can be excellently discharged in frost form.
- frost adhering to the filter component 42 drops as the amount of the frost reaches a certain amount, and thus continuous operation can be performed by removing the frost.
- a heater component may be attached to the filter component 42 of the defroster 40.
- the defroster 40 further includes the heater component attached to the filter component 42. According to the defroster 40 thus configured, even when frost adhering to the filter component 42 melts and plate-shaped ice forms at the filter component 42, the ice can be melted by the heater component and thus the defroster 40 can be prevented from becoming blocked and unable to defrost.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Defrosting Systems (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2022140646 | 2022-09-05 | ||
| PCT/JP2023/023133 WO2024053206A1 (ja) | 2022-09-05 | 2023-06-22 | 除霜器および除霜方法 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4585867A1 true EP4585867A1 (en) | 2025-07-16 |
Family
ID=90192315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23862751.7A Pending EP4585867A1 (en) | 2022-09-05 | 2023-06-22 | Defrosting device and defrosting method |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP4585867A1 (enrdf_load_stackoverflow) |
| JP (1) | JPWO2024053206A1 (enrdf_load_stackoverflow) |
| KR (1) | KR20250040726A (enrdf_load_stackoverflow) |
| CN (1) | CN119678004A (enrdf_load_stackoverflow) |
| WO (1) | WO2024053206A1 (enrdf_load_stackoverflow) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60126567A (ja) * | 1983-12-14 | 1985-07-06 | 味の素冷凍食品株式会社 | 冷凍庫の除霜方法 |
| JP2006234275A (ja) | 2005-02-24 | 2006-09-07 | Mitsubishi Heavy Ind Ltd | 空気冷媒式冷凍機 |
| WO2008129599A1 (ja) * | 2007-04-05 | 2008-10-30 | Earthship K.K. | 自動除霜機能を備えた空気冷却システム |
| CZ308293B6 (cs) * | 2018-12-27 | 2020-04-22 | Mirai Intex Sagl | Odvlhčovač vzduchu, zejména pro vzduchové chladicí nebo klimatizační stroje |
| JP7287024B2 (ja) * | 2019-03-18 | 2023-06-06 | 富士電機株式会社 | 冷却装置 |
| US11677969B2 (en) | 2019-03-22 | 2023-06-13 | Tencent America LLC | Method and apparatus for video coding |
-
2023
- 2023-06-22 JP JP2024545451A patent/JPWO2024053206A1/ja active Pending
- 2023-06-22 WO PCT/JP2023/023133 patent/WO2024053206A1/ja active Application Filing
- 2023-06-22 KR KR1020257006339A patent/KR20250040726A/ko active Pending
- 2023-06-22 EP EP23862751.7A patent/EP4585867A1/en active Pending
- 2023-06-22 CN CN202380058993.5A patent/CN119678004A/zh active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| WO2024053206A1 (ja) | 2024-03-14 |
| KR20250040726A (ko) | 2025-03-24 |
| CN119678004A (zh) | 2025-03-21 |
| JPWO2024053206A1 (enrdf_load_stackoverflow) | 2024-03-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
| 17P | Request for examination filed |
Effective date: 20250226 |
|
| AK | Designated contracting states |
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