EP1848943A1 - Blast chiller for rapidly cooling and/or rapidly freezing food, with improved probe for detecting the temperature thereof - Google Patents

Blast chiller for rapidly cooling and/or rapidly freezing food, with improved probe for detecting the temperature thereof

Info

Publication number
EP1848943A1
EP1848943A1 EP05813237A EP05813237A EP1848943A1 EP 1848943 A1 EP1848943 A1 EP 1848943A1 EP 05813237 A EP05813237 A EP 05813237A EP 05813237 A EP05813237 A EP 05813237A EP 1848943 A1 EP1848943 A1 EP 1848943A1
Authority
EP
European Patent Office
Prior art keywords
probe
wall
door
blast chiller
food
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
Application number
EP05813237A
Other languages
German (de)
French (fr)
Other versions
EP1848943B1 (en
Inventor
Claudio Tonon
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.)
Irinox SpA
Original Assignee
Irinox SpA
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.)
Filing date
Publication date
Application filed by Irinox SpA filed Critical Irinox SpA
Publication of EP1848943A1 publication Critical patent/EP1848943A1/en
Application granted granted Critical
Publication of EP1848943B1 publication Critical patent/EP1848943B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/02—Doors; Covers
    • F25D23/028—Details
    • 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
    • F25D29/005—Mounting of control devices
    • 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
    • F25D2400/28—Quick cooling
    • 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
    • F25D2400/30—Quick freezing
    • 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
    • F25D2700/00—Means for sensing or measuring; Sensors therefor
    • F25D2700/16—Sensors measuring the temperature of products

Definitions

  • the present invention relates to a blast chiller for rapidly cooling and/or rapidly freezing food with an improved probe for detecting the temperature thereof .
  • the blast chiller in question is equipped with a powerful refrigerating system able to produce the rapid freezing or cooling, down to the core, of the food products introduced into its insulated chamber.
  • a temperature detection probe In order to check the temperature reached by the food placed inside, modern blast chillers are provided with a temperature detection probe .
  • This probe is usually composed of a metal rod with a pointed end, for easy insertion into the food when the latter is introduced into the chamber, and a handle made of silicone or other plastic material, so as to allow easy gripping of the probe by the user.
  • a cable is connected to the handle and is designed to convey the data from the probe to the control unit of the blast chiller.
  • the probe is supported, when it is not inserted inside the food, by special securing means which are preferably provided on the inner wall of the blast chiller door.
  • these securing means usually consist of a shaped metal plate which is fixed in a projecting manner onto the inner wall of the door by means of spot welds and provided with holes or seats for removable engagement of the probe.
  • the securing means which are currently used have in practice proved to be impractical in that they do not allow easy removal and easily positioning of the probe from/onto the wall of the door.
  • the blast chillers of the known type envisage that the cable for connecting the probe to the control unit passes through an opening formed in the end wall of the blast chiller. Operationally speaking, this results in the cable interfering frequently with the pans when they are introduced into or removed from the chamber, thus hampering loading or unloading of the food to be processed.
  • the main object of the present invention is to overcome the drawbacks of the art known hitherto by providing a blast chiller for rapidly freezing and/or cooling food, which has an improved temperature detection probe able to be removably positioned on securing means associated with the blast chiller door in an easy and simple manner.
  • Another object of the present invention is to provide a blast chiller, the probe of which does not hamper the chamber loading and unloading operations .
  • a further object of the present invention is to provide a blast chiller with an improved probe which is constructionally simple and inexpensive to produce and operationally entirely reliable.
  • a further object of the present invention is to provide a blast chiller equipped with a probe which can be mechanically and operationally associated with securing means able to satisfy the most demanding aesthetic requirements.
  • FIG. 1 shows a schematic view of a blast chiller with a probe according to the present invention positioned on the door;
  • FIG. 2 shows a perspective view of an enlarged detail of the blast chiller, relating to the probe
  • the blast chiller 1 has a supporting structure 2 having a substantially box-like shape with facing side walls L, L', a front wall A and rear wall P facing each other and a top wall S and bottom wall I facing each other. This latter wall may have support feet.
  • the supporting structure 2 has, internally, an insulated chamber 4 inside which an access opening removably closed by a door 6 is defined.
  • the chamber 4 is also defined in a traditional manner by an end wall 5, by a pair of side walls 8, by a ceiling 9 and by a base 10.
  • the door 6 consists of a panel with a substantially rectangular shape, defined by two walls, i.e. an inner wall 7 which faces, when the door 6 is closed, the end wall 5, and an outer wall 7', said walls being separated by insulating material 30 for technical insulation of the chamber.
  • the side surfaces 8 have, formed in them, in an entirely conventional manner, guides for supporting one or more grilles intended to support trays, pans or other containers for the food to be chilled.
  • the blast chiller 1 also comprises a ventilation unit and a cooling system, which are known per se and do not form the subject of a specific claim and therefore are not described in detail .
  • a cable 15 is connected to the handle 14 so as to convey the data detected by the probe 11 to a control unit of the blast chiller 1.
  • the metal rod 12 of the probe 11 has internally an electric resistance operating at low voltage which, in given conditions controlled electronically by the operating logic of the blast chiller, causes heating of the rod 12. In this way, once the food has been frozen, it is possible to extract the probe rod easily without any effort.
  • these securing means 16 comprise a first and a second connecting element which are respectively indicated by M and M 1 and are able to be magnetically attracted together.
  • These elements M, M' advantageously both consist of magnets, one M of which is associated with the probe 11 while the other one M' is associated with the inner wall
  • the connecting element M 1 is fixed to the inner wall 7 of the door on its inner side, thus remaining embedded and immobilized within the insulating material 30.
  • the magnet M (see Figure 2) is in turn embedded in plastic material, preferably silicone, which forms the handle 14.
  • the probe 11 is attracted and is easily attached to the door 6 as soon as it is moved towards the wall 7, while it is possible to remove it from its non-operating position by exerting a slight force away from the said part 7.
  • the probe 11 is able to be taken hold of and repositioned in a particularly quick and easy manner on the wall 7 of the door 6.
  • the number of magnets and their arrangement may be of any nature according to requirements (for example two magnets M are envisaged in the probe shown in Figure 4) and in particular it may be envisaged that the magnet of one connecting element exerts its attractive force both in respect of another magnet and in respect of a ferromagnetic part, whereby the latter may also consist of the same wall or a portion of the same probe.
  • the securing means 16 comprise a shaped seat 17 which is formed on the inner wall 7 of the door 6 and obtained by means of a depression or recess in the said wall 7 and which has preferably a portion shaped so as to match a corresponding portion of the probe 11.
  • the seat 17 may be shaped so as to match the handle 14 and therefore have a wavy form set inside the sheet metal of the wall 7.
  • the abovementioned depression will allow a reduction in the overall dimensions of the probe 11, limiting wholly or partly projection thereof inside the chamber 4 of the blast chiller 1.
  • the connecting cable 15 which conveys the signals detected by the probe to the control unit

Landscapes

  • 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)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Abstract

Blast chiller for rapidly cooling and/or rapidly freezing food, which is equipped with a door for closing the opening of an insulated chamber and a probe for detecting the temperature of the food being processed inside the chamber. At least two magnets are envisaged, one being associated with the probe and the other with the inner wall of the door so as to allow the probe to be removably attached to the abovementioned wall of the door.

Description

BLAST CHILLER FOR RAPIDLY COOLING AND/OR RAPIDLY FREEZING
FOOD, WITH IMPROVED PROBE FOR DETECTING THE TEMPERATURE
THEREOF
DESCRIPTION The present invention relates to a blast chiller for rapidly cooling and/or rapidly freezing food with an improved probe for detecting the temperature thereof .
The blast chiller in question is equipped with a powerful refrigerating system able to produce the rapid freezing or cooling, down to the core, of the food products introduced into its insulated chamber.
In order to check the temperature reached by the food placed inside, modern blast chillers are provided with a temperature detection probe . This probe is usually composed of a metal rod with a pointed end, for easy insertion into the food when the latter is introduced into the chamber, and a handle made of silicone or other plastic material, so as to allow easy gripping of the probe by the user. A cable is connected to the handle and is designed to convey the data from the probe to the control unit of the blast chiller.
The probe is supported, when it is not inserted inside the food, by special securing means which are preferably provided on the inner wall of the blast chiller door.
At present, these securing means usually consist of a shaped metal plate which is fixed in a projecting manner onto the inner wall of the door by means of spot welds and provided with holes or seats for removable engagement of the probe.
The securing means which are currently used have in practice proved to be impractical in that they do not allow easy removal and easily positioning of the probe from/onto the wall of the door.
A further drawback arises from the fact that the shaped metal plate fixed to the wall of the blast chiller in order to form the securing means necessarily has several sharp edges and corners which do not allow easy cleaning to be performed and which therefore constitute zones which are difficult to reach and where bacteria may form.
At present, moreover, the blast chillers of the known type envisage that the cable for connecting the probe to the control unit passes through an opening formed in the end wall of the blast chiller. Operationally speaking, this results in the cable interfering frequently with the pans when they are introduced into or removed from the chamber, thus hampering loading or unloading of the food to be processed.
In this situation, the main object of the present invention is to overcome the drawbacks of the art known hitherto by providing a blast chiller for rapidly freezing and/or cooling food, which has an improved temperature detection probe able to be removably positioned on securing means associated with the blast chiller door in an easy and simple manner.
Another object of the present invention is to provide a blast chiller, the probe of which does not hamper the chamber loading and unloading operations .
A further object of the present invention is to provide a blast chiller with an improved probe which is constructionally simple and inexpensive to produce and operationally entirely reliable.
Finally, a further object of the present invention is to provide a blast chiller equipped with a probe which can be mechanically and operationally associated with securing means able to satisfy the most demanding aesthetic requirements.
The technical features of the invention, in accordance with the abovementioned objects, may be clearly determined from the contents of the claims indicated below and the advantages thereof will emerge more clearly from the detailed description which follows, with reference to the accompanying drawings, which show a purely exemplary and non-limiting embodiment thereof and where :
- Figure 1 shows a schematic view of a blast chiller with a probe according to the present invention positioned on the door;
- Figure 2 shows a perspective view of an enlarged detail of the blast chiller, relating to the probe;
- Figure 3 shows a side view of the probe; - Figure 4 shows a plan view of the probe;
- Figures 5 and 6 show two cross-sections along the lines V-V and VI-VI in Figure 4, relating solely to the seat housing the probe.
With reference to the accompanying drawings, 1 denotes in its entirety the blast chiller according to the present invention.
The blast chiller 1 has a supporting structure 2 having a substantially box-like shape with facing side walls L, L', a front wall A and rear wall P facing each other and a top wall S and bottom wall I facing each other. This latter wall may have support feet.
The supporting structure 2 has, internally, an insulated chamber 4 inside which an access opening removably closed by a door 6 is defined. The chamber 4 is also defined in a traditional manner by an end wall 5, by a pair of side walls 8, by a ceiling 9 and by a base 10.
The door 6 consists of a panel with a substantially rectangular shape, defined by two walls, i.e. an inner wall 7 which faces, when the door 6 is closed, the end wall 5, and an outer wall 7', said walls being separated by insulating material 30 for technical insulation of the chamber.
The side surfaces 8 have, formed in them, in an entirely conventional manner, guides for supporting one or more grilles intended to support trays, pans or other containers for the food to be chilled.
The blast chiller 1 also comprises a ventilation unit and a cooling system, which are known per se and do not form the subject of a specific claim and therefore are not described in detail .
The blast chiller 1 is also equipped with a probe 11 for detecting the temperature of the food, comprising a metal rod 12 with a pointed end 13 for easy insertion into the food when the latter is placed inside the chamber 4 of the blast chiller 1, and a handle 14 for easy gripping of the probe 11 by a user, preferably made of silicone or other material suitable for contact with food. Preferably, the probe has the shape of an L with the rod connected to the handle at an angle designed to allow practical use thereof.
A cable 15 is connected to the handle 14 so as to convey the data detected by the probe 11 to a control unit of the blast chiller 1.
Advantageously the metal rod 12 of the probe 11 has internally an electric resistance operating at low voltage which, in given conditions controlled electronically by the operating logic of the blast chiller, causes heating of the rod 12. In this way, once the food has been frozen, it is possible to extract the probe rod easily without any effort.
The inner wall 7 of the door 6 is provided with securing means 16 for removably supporting the probe 11 when it is not inserted in a food product.
According to the idea forming the basis of the present invention, these securing means 16 comprise a first and a second connecting element which are respectively indicated by M and M1 and are able to be magnetically attracted together.
These elements M, M' advantageously both consist of magnets, one M of which is associated with the probe 11 while the other one M' is associated with the inner wall
7 of the door 6. In more detail, in accordance with the example shown in Figure 3, the connecting element M1 is fixed to the inner wall 7 of the door on its inner side, thus remaining embedded and immobilized within the insulating material 30. The magnet M (see Figure 2) is in turn embedded in plastic material, preferably silicone, which forms the handle 14.
Operationally speaking, the probe 11 is attracted and is easily attached to the door 6 as soon as it is moved towards the wall 7, while it is possible to remove it from its non-operating position by exerting a slight force away from the said part 7.
As a result the probe 11 is able to be taken hold of and repositioned in a particularly quick and easy manner on the wall 7 of the door 6.
Obviously, and without thereby departing from the scope of protection of the present patent, the number of magnets and their arrangement may be of any nature according to requirements (for example two magnets M are envisaged in the probe shown in Figure 4) and in particular it may be envisaged that the magnet of one connecting element exerts its attractive force both in respect of another magnet and in respect of a ferromagnetic part, whereby the latter may also consist of the same wall or a portion of the same probe. As can be seen in Figure 4, the securing means 16 comprise a shaped seat 17 which is formed on the inner wall 7 of the door 6 and obtained by means of a depression or recess in the said wall 7 and which has preferably a portion shaped so as to match a corresponding portion of the probe 11.
For example, the seat 17 may be shaped so as to match the handle 14 and therefore have a wavy form set inside the sheet metal of the wall 7. Advantageously the abovementioned depression will allow a reduction in the overall dimensions of the probe 11, limiting wholly or partly projection thereof inside the chamber 4 of the blast chiller 1.
In accordance with a preferred embodiment of the present invention, the connecting cable 15 which conveys the signals detected by the probe to the control unit
(the latter is not shown in the accompanying drawings since it is entirely conventional and well-known to a person skilled in the art) passes through a hole 20 formed in the inner wall 7 of the door and therefore is confined between the inner wall 7 and the outer wall 7 ' until it enters into the supporting structure 2 of the blast chiller 1 in order to reach the control unit passing inside the bottom pin for supporting and rotating the door 6, inside which a hole is duly formed. The invention thus conceived therefore achieves the predefined objects.
Obviously, it may also assume in its practical embodiment forms and configurations different from that illustrated above, without thereby departing from the present scope of protection.
Moreover, all the details may be replaced by technically equivalent elements and the forms and the materials used may be of any nature as required.

Claims

1. Blast chiller for rapidly cooling and/or rapidly freezing food, which comprises: a supporting structure having internally an insulated chamber (4) provided with an access opening which can be removably closed by means of a door (6) having an outer wall and an inner wall;
- a probe for detecting the temperature of food;
- securing means provided on the inner wall of said door and able to support removably said probe when it is not inserted in a food product ; characterized in that said securing means comprise at least one first and one second connecting element capable of magnetically attracting each other, one being associated with said probe and the other one with the inner wall of said door so as to allow said probe to be removably attached to the aforementioned wall of said door.
2. Blast chiller according to Claim 1, in which at least one of said first and second securing elements consists of a magnet.
3. Blast chiller according to Claims 1 or 2 , in which said securing means comprise a shaped seat formed on the inner wall of said door.
4. Blast chiller according to Claim 3, in which said shaped seat is obtained by means of a depression formed in the inner wall of the door.
5. Blast chiller according to Claim 4 , in which said depression has at least one portion substantially shaped so as to match a corresponding portion of said probe .
6. Blast chiller according to Claim 1, in which said first securing element consists of a first magnet embedded within the handle of said probe .
7. Blast chiller according to Claim 1, in which said first securing element consists of a second magnet fixed to said door behind said inner wall.
8. Blast chiller according to Claim 1, in which said probe is connected to a control unit by means of a cable which passes through a hole formed in the inner wall of said door and a pin for supporting and rotating said door with respect to said supporting structure.
EP05813237A 2005-02-17 2005-11-08 Blast chiller for rapidly cooling and/or rapidly freezing food, with improved probe for detecting the temperature thereof Active EP1848943B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000041A ITPD20050041A1 (en) 2005-02-17 2005-02-17 BLAST CHILLER FOR QUICK COOLING AND OR QUICK FREEZING OF FOODSTUFFS, WITH PROBE PROBED FOR THE DETECTION OF THEIR TEMPERATURE
PCT/IT2005/000649 WO2006087747A1 (en) 2005-02-17 2005-11-08 Blast chiller for rapidly cooling and/or rapidly freezing food, with improved probe for detecting the temperature thereof

Publications (2)

Publication Number Publication Date
EP1848943A1 true EP1848943A1 (en) 2007-10-31
EP1848943B1 EP1848943B1 (en) 2011-06-15

Family

ID=35709365

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05813237A Active EP1848943B1 (en) 2005-02-17 2005-11-08 Blast chiller for rapidly cooling and/or rapidly freezing food, with improved probe for detecting the temperature thereof

Country Status (6)

Country Link
US (1) US20080134697A1 (en)
EP (1) EP1848943B1 (en)
AT (1) ATE513173T1 (en)
ES (1) ES2367130T3 (en)
IT (1) ITPD20050041A1 (en)
WO (1) WO2006087747A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1772691A1 (en) * 2005-10-10 2007-04-11 Whirlpool Corporation Method for cooling drinks and beverages in a freezer and refrigerator using such method
KR20130030677A (en) * 2011-09-19 2013-03-27 삼성전자주식회사 Indicating device and refrigerator having the same
EP3430335B1 (en) * 2016-03-18 2022-11-30 Carrier Corporation Cargo transport system for perishable products
IT202000024781A1 (en) * 2020-10-20 2022-04-20 Irinox S P A METHOD AND EQUIPMENT FOR FOOD PRESERVATION

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH534335A (en) * 1971-09-03 1973-02-28 Therma Ag Freezer with a battery-operated electronic warning device that responds to the temperature in the freezer
US5019124A (en) * 1990-05-29 1991-05-28 Flugger Frederick F Tray
IT1254692B (en) * 1992-04-14 1995-09-28 Whirlpool Italia DEVICE TO DETECT THE TEMPERATURE OF CONTAINERS PLACED IN A REFRIGERATOR
FR2693258B1 (en) * 1992-07-06 1994-09-16 Bontami Const Isothermiques Programmable fast cooling and / or freezing cell.
US5826432A (en) * 1995-08-18 1998-10-27 El Cold, Inc. Blast chiller
CA2256339A1 (en) * 1997-12-17 1999-06-17 Pierre Vidaillac Electronic refrigeration unit temperature alarm
DE20208573U1 (en) * 2002-06-03 2003-10-16 Frima Sa Cooking process sensor can be attached magnetically

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2006087747A1 *

Also Published As

Publication number Publication date
WO2006087747A1 (en) 2006-08-24
EP1848943B1 (en) 2011-06-15
ATE513173T1 (en) 2011-07-15
US20080134697A1 (en) 2008-06-12
ITPD20050041A1 (en) 2006-08-18
ES2367130T3 (en) 2011-10-28

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