EP3786552A1 - Appareil de refroidissement pourvu de conduit d'air opposé - Google Patents

Appareil de refroidissement pourvu de conduit d'air opposé Download PDF

Info

Publication number: EP3786552A1
Authority: EP; European Patent Office
Prior art keywords: fan; air; compartment; cooling; air duct
Prior art date: 2019-09-02
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

Application number

EP20191760.6A

Other languages

German (de)

English (en)

Other versions

EP3786552B1 (fr

Inventor

Adrian Bachmann

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

V-Zug AG

Original Assignee

V-Zug AG

Priority date (The priority date 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 date listed.)

2019-09-02

Filing date

2020-08-19

Publication date

2021-03-03

2020-08-19 Application filed by V-Zug AG filed Critical V-Zug AG

2021-03-03 Publication of EP3786552A1 publication Critical patent/EP3786552A1/fr

2024-09-25 Application granted granted Critical

2024-09-25 Publication of EP3786552B1 publication Critical patent/EP3786552B1/fr

Status Active legal-status Critical Current

2040-08-19 Anticipated expiration legal-status Critical

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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
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
- F25D17/062—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators
- F25D17/065—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators with compartments at different temperatures
- 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
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
- F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
- 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
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
- F25D17/062—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators
- 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
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
- F25D17/08—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation using ducts
- 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
- F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
- F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
- F25D2317/068—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the fans
- F25D2317/0682—Two or more fans
- 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
- F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
- F25D2400/04—Refrigerators with a horizontal mullion

Definitions

the invention relates to a cooling device, in particular a refrigerator, with a usable space, a heat pump with an evaporator, a cooling air duct and a first and a second fan in order to convey air in the cooling air duct.
WO 02/081 987 shows a refrigerator with a refrigerator compartment and a freezer compartment and two fans, the first fan being arranged in the immediate vicinity of the evaporator in order to convey the cooled air into the usable space.
the second fan is arranged in the lower area of the cooling device at the rear of the work space in order to improve the circulation of the air in the work space. This ensures a more even temperature distribution within the usable space.
JP 2006 300 346 shows a cooling device with a plurality of compartments and with a cooling air duct arranged behind the compartments, in which an evaporator is arranged.
a fan is arranged at all access openings through which air flows from the cooling air duct into the individual compartments. This allows the temperature in each compartment to be set individually and precisely.
the object is to provide a cooling device with an improved air flow.
the first fan, the second fan and the cooling air duct are arranged and configured in such a way that the first fan and the second fan convey air in the cooling air duct in opposite directions.
This air flow has the advantage that the air can be distributed as evenly as possible within the usable space and the temperature within the usable space can be controlled as precisely as possible. Furthermore, the formation of ice in the fans can also be prevented as well as possible.
the first fan, the second fan and the cooling air duct are arranged and configured in such a way that the first fan and the second fan convey the air in the cooling air duct in one promote coherent, in particular straight, in particular vertically extending, channel section in the opposite direction.
a cooling device can comprise several cooling air ducts, but the opposite air flow takes place in a single connected cooling air duct.
the air is conveyed in opposite directions in such a way that the air conveyed by the first fan and the air conveyed by the second fan collide head-on in the cooling air duct.
the cooling air duct is advantageously arranged behind the usable space and the cooling air duct runs essentially vertically.
the door forms the front side.
the usable space is arranged behind the door and the cooling air duct is arranged behind the usable space, in particular on the rear of the cooling device.
the first fan, the second fan and the cooling air duct are arranged in such a way that the first fan conveys the air in the cooling air duct from top to bottom and the second fan conveys the air in the cooling air duct from bottom to top.
Sucking in air from the usable space has the advantage that the air flowing through the fan is relatively warm and therefore ice formation on the fan can be prevented.
the usable space comprises a first and a second compartment, in particular wherein the second compartment is a cold storage compartment and / or the second compartment is arranged below the first compartment and / or the first compartment and the second compartment are separated from one another by a horizontal partition are.
a "cold storage compartment” is a compartment in which temperatures of approx. -2 ° C and + 3 ° C are kept.
the partition wall can completely separate the compartments from one another or also have a passage through which air can flow from the first compartment into the second compartment or from the second compartment into the first compartment.
the first fan is advantageously arranged behind the first compartment and the second fan is arranged behind the second compartment, in particular with the second fan being arranged below the horizontal partition.
the evaporator extends both at least partially along the first and at least partially along the second compartment.
An air guiding element can be arranged directly above the second fan and the first fan and the second fan can be arranged such that the air flows from the rear to the front above the air guiding element.
Fig. 1 shows a refrigerator in the form of a refrigerator with a housing 1 and a usable space 2, which is divided into a cooling compartment 2a, a cold storage compartment 2b and a freezer compartment 2c.
the device can be designed to maintain a temperature greater than 0 ° C and less than 10 ° C in the refrigerator compartment, a temperature greater than -2 ° C and less than 3 ° C in the cold storage compartment and a temperature less than -18 ° C in the freezer compartment.
a temperature greater than 0 ° C and less than 10 ° C in the refrigerator compartment a temperature greater than -2 ° C and less than 3 ° C in the cold storage compartment and a temperature less than -18 ° C in the freezer compartment.
other temperature ranges are conceivable.
two separate doors 3a, 3b are provided, but the use of a common door is also conceivable.
the three useful spaces 2a, 2b and 2c are advantageously arranged vertically one above the other.
Fig. 2 shows a cooling device in the form of a refrigerator with a housing 1 and the two compartments 2a and 2b.
the compartment 2a is a cooling compartment and the compartment 2b is a cold storage compartment.
the cooling compartment 2a is divided into several compartments by means of three trays 4.
the cold storage compartment 2b is divided into two by means of drawers 5a and 5b Divided into compartments.
the refrigerator comprises a door 3 on the front side, a first fan 6a, a second fan 6b, a cooling air duct 7 running along the rear of the refrigerator and an evaporator 8 which is arranged in the cooling air duct 7.
the first fan 6 a is arranged in the upper region of the cooling air duct 7. It sucks air out of the cooling compartment 2a and conveys it downwards in the cooling air duct 7. When flowing through the cooling air duct 7, the air is cooled by the evaporator 8 arranged on the rear of the refrigerator.
Four oblique arrows 9 illustrate openings on the rear wall 10 of the cooling compartment 2a, through which the cooled air from the cooling air duct 7 flows into the different compartments of the cooling compartment 2a. Further cooled air flows in the cooling air duct 7 downwards in the direction of the cold storage compartment 2b.
the air flow is significantly influenced by the second fan 6b.
the second fan 6b sucks air from the cold storage compartment 2b from front to back into the cooling air duct 7. Sucking in air from the cold storage compartment 2b has the advantage that relatively warm air flows through the second fan 6b and therefore the risk of ice forming in the second fan 6b can be reduced.
the warm air blown into the cooling air duct 7 by the second fan 6 b flows upwards in the cooling air duct 7 and impinges in a mixing zone 11 on the cold air flowing down from above and cooled by the evaporator 8.
a mixture of warm and cold air then flows above the upper drawer 5a and between the two drawers 5a and 5b within the cold storage compartment from back to front.
Part of the air circulating within the cold storage compartment 2b flows on the front side of the partition 12, which separates the cooling compartment 2a and the cold storage compartment 2b from one another, up into the cooling compartment 2a and finally back to the first fan 6a.
An air guiding element 13 is arranged above the second fan 6b, which ensures that the air flowing from the front to the rear below the lower drawer 5b flows through the second fan 6b into the cooling air duct 7. Above the air guiding element 13, the air flows out of the cooling air duct 7 from the rear to the front between the drawers 5a and 5b.
a refrigerator is shown that compares to the one in Fig. 2
the refrigerator shown has a different air flow.
the mixing takes place again within the cooling air channel 7.
one difference is that the partition wall 12 is drawn all the way to the front within the usable space and is therefore flush with the door 3.
no air therefore flows on the front side of the partition 12 between the cooling compartment 2a and the cold storage compartment 2b.
An almost independent air circulation thus takes place in the cooling compartment 2a and in the cold storage compartment 2b.
Only in the mixing zone 11 in the cooling air channel 7 does air, which is conveyed from the top to the bottom by the first fan 6a in the cooling air channel 7, collide with air which is conveyed from the bottom to the top by the second fan 6b in the cooling air channel 7.
the mixing of air from the Cooling compartment 2a and the cold storage compartment 2b are comparatively small. "No air” does not exclude the possibility that a small amount of air may flow due to leaks.

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Engineering & Computer Science (AREA)
Chemical & Material Sciences (AREA)
Combustion & Propulsion (AREA)
Physics & Mathematics (AREA)
Mechanical Engineering (AREA)
Thermal Sciences (AREA)
General Engineering & Computer Science (AREA)
Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

EP20191760.6A 2019-09-02 2020-08-19 Appareil de refroidissement pourvu de conduit d'air opposé Active EP3786552B1 (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CH11042019A CH714956A2 (de)	2019-09-02	2019-09-02	Kühlgerät mit entgegengesetzter Luftführung.

Publications (2)

Publication Number	Publication Date
EP3786552A1 true EP3786552A1 (fr)	2021-03-03
EP3786552B1 EP3786552B1 (fr)	2024-09-25

Family

ID=68500172

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP20191760.6A Active EP3786552B1 (fr)	2019-09-02	2020-08-19	Appareil de refroidissement pourvu de conduit d'air opposé

Country Status (2)

Country	Link
EP (1)	EP3786552B1 (fr)
CH (1)	CH714956A2 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
SU1551946A1 (ru) *	1988-06-22	1990-03-23	Всесоюзный Научно-Исследовательский, Конструкторско-Технологический Институт По Переработке Фруктов И Винограда	Установка дл замораживани продуктов
JPH0634251A (ja) *	1992-07-14	1994-02-08	Mitsubishi Electric Corp	冷凍装置
WO2002081987A1 (fr)	2001-04-07	2002-10-17	Lg Electronics Inc.	Appareil et procede de regulation de la circulation de l'air froid dans un refrigerateur
DE202005005940U1 (de)	2005-04-13	2006-08-24	Liebherr-Hausgeräte Ochsenhausen GmbH	Kühl- und/oder Gefriergerät
JP2006300346A (ja)	2005-04-15	2006-11-02	Matsushita Electric Ind Co Ltd	冷蔵庫
EP2413074A1 (fr) *	2010-07-26	2012-02-01	Electrolux Home Products Corporation N.V.	Appareil de réfrigération à plusieurs compartiments pour le stockage d'aliments frais à différentes températures
EP2469203A2 (fr) *	2010-12-22	2012-06-27	Samsung Electronics Co., Ltd.	Réfrigérateur et son procédé de commande
EP2782077A1 (fr) *	2011-11-14	2014-09-24	Fuji Electric Co., Ltd.	Distributeur automatique

2019
- 2019-09-02 CH CH11042019A patent/CH714956A2/de unknown
2020
- 2020-08-19 EP EP20191760.6A patent/EP3786552B1/fr active Active

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
SU1551946A1 (ru) *	1988-06-22	1990-03-23	Всесоюзный Научно-Исследовательский, Конструкторско-Технологический Институт По Переработке Фруктов И Винограда	Установка дл замораживани продуктов
JPH0634251A (ja) *	1992-07-14	1994-02-08	Mitsubishi Electric Corp	冷凍装置
WO2002081987A1 (fr)	2001-04-07	2002-10-17	Lg Electronics Inc.	Appareil et procede de regulation de la circulation de l'air froid dans un refrigerateur
DE202005005940U1 (de)	2005-04-13	2006-08-24	Liebherr-Hausgeräte Ochsenhausen GmbH	Kühl- und/oder Gefriergerät
JP2006300346A (ja)	2005-04-15	2006-11-02	Matsushita Electric Ind Co Ltd	冷蔵庫
EP2413074A1 (fr) *	2010-07-26	2012-02-01	Electrolux Home Products Corporation N.V.	Appareil de réfrigération à plusieurs compartiments pour le stockage d'aliments frais à différentes températures
EP2469203A2 (fr) *	2010-12-22	2012-06-27	Samsung Electronics Co., Ltd.	Réfrigérateur et son procédé de commande
EP2782077A1 (fr) *	2011-11-14	2014-09-24	Fuji Electric Co., Ltd.	Distributeur automatique

Also Published As

Publication number	Publication date
CH714956A2 (de)	2019-11-15
EP3786552B1 (fr)	2024-09-25

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