JPH06147496A - Thawing and heating machine for quick-freezing cooked food wrapped with skin for cooking - Google Patents

Abstract

PURPOSE: To prevent steam from concentrating onto the lower surface of a cooking article by supporting the cooking article on a supporting table comprising supporting means having minimum number of contact points between the cooking article and the case thereof. CONSTITUTION: A supporting table 21 supports a cooking article P and comprises a plurality of supporting means having minimum number of contact points between the cooking article P and the case thereof. The supporting means comprises four supporting arms 24, 25, 26, 27 projecting sideways from a door 15 while spaced apart from each other. The supporting arm 24, 25, 26, 27 has one end coupled with the door 15 and the other end coupled with an arm 28 perpendicular to the supporting arms 24, 25, 27. Consequently, the assemblies 24, 25, 26, 27, 28 form a rectangular frame. According to the structure, steam is prevented from concentrating between the cooking article and the case thereof when a thawing/heating unit is operating.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a thawing / heating machine for quick-frozen cooked foods wrapped in a cooking jacket. The machine is
It has a small box defining an internal space, on the one hand at least one inlet of microwaves emitted by at least one microwave radiator, and at least one of the infrared rays emitted by at least one infrared radiator. One supply port is open, while the other is where the cooked product is placed. The casket has a front charging opening through which the cooking product is inserted, said opening being impermeable to microwaves,
It is closed by a door with a support on which the cooked product rests.

[0002]

2. Description of the Related Art Such a defrosting / heating machine can place and remove cooked foods while avoiding the risk of burns to the user. However, due to the construction of this pedestal, of course the machine does not guarantee good thawing and good heating of the cooked product. In fact, the action of microwaves and infrared rays is disturbed by the presence of obstacles, so that the pedestal forms a shield against these radiations, thus reducing the operating efficiency of this machine.

On the other hand, the flat positioning of the packaged cooked product on the support does not promote a good distribution of infrared and microwave radiation, and also causes the accumulation of water vapor on the underside of the cooked product. This particularly weakens the emission of infrared radiation and prevents glazing, since it does not reach the temperature suitable for the initiation of the Maillard reaction, which takes place at a minimum temperature of about 140 ° C.

[0004]

SUMMARY OF THE INVENTION It is an object of the present invention to remedy the above drawbacks by using a door pedestal that is easy, reliable and economical to use.

[0005]

According to the present invention, defrosting
The pedestal of the heater door has a plurality of support means for supporting the cooked item and creating a minimum number of contact points between the cooked item and the cooking casing.

By virtue of the support of the door of the defroster / heater according to the invention, the cooking product is infrared-radiated over its entire surface by minimizing the number of contact points between the cooking casing and the cooking product. And receives microwave radiation. In addition, water vapor between the support and the cook is removed. In this way, the cooked product restores all of its natural appearance (egg yolk, tingling, temperature ...) that is cooked and tasted on the same day.

On the other hand, fixing the support to the sliding door is preferred for centrally positioning the cooked product within the space where infrared and microwave radiation are optimal. The features and advantages of the present invention will become more apparent from the description made below with reference to the accompanying drawings by way of non-limiting example.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Referring to FIG. 1, a defroster / heater 1 for quick-frozen cooked food P wrapped in a cooking envelope has a small box 2 defining an internal space 3. The small box 2 is, for example, a parallelepiped, but other geometric shapes are also conceivable.

The small box 2, on the one hand, of which only one is shown, is perpendicular to the two side faces 4 which are transparent to infrared radiation but not to microwave radiation, and to the side faces 4, respectively called the bottom face 5 and the ceiling face 6. It has two opposing surfaces, and the other has a rear wall 11 and a front charging opening 12 that closes the space 3 from the rear.

The side surfaces 4 are constituted, for example, by a metal grid with a fine mesh defined so as to impede microwave radiation, each having at least one infrared radiator IR1 or IR2 on its outer surface. The bottom surface and the ceiling surface respectively have a microwave radiation supply port 7 or 8 connected to a microwave radiator 9 or 10.

In a preferred embodiment, not shown, the bottom surface 5
And the ceiling surface 6 has two inlets for the microwaves emitted from the two microwave radiators 9 and 10, the two microwave radiators being arranged axially on the sides and in the upper area of the box. Similar to the four infrared radiators distributed in the lower area, two in each case, they operate simultaneously during their operation. Each microwave supply port has, for example, a rectangular shape.

Baffles 13, 14 are positioned along the perpendicular bisector of the shorter side, for example in the plane transverse to the facing surfaces 5, 6.

Each baffle plate is composed of, for example, a V-shaped folded roof, and the top edge thereof is located upstream of the microwave supply port. Therefore, the baffles 13 and 14
Promotes the distribution of microwave energy over the entire surface of the cooked product P.

The front charging opening 12 is closed during operation of the thawing / heating machine, for example by means of a door 15, which is shown in FIGS. 2 and 3, for example only one of which is shown in a plane parallel to the bottom surface. It is fixed to a horizontal sliding structure 16 having two arms 17, 18 guided by casters 20 in a groove 19 positioned near the bottom surface.

The door 15 has protective means, not shown, which makes it completely gas and microwave tight when the door 15 is closed and the machine is operating. The door 15 includes a support 21 that can receive the cooked food P. The support base 21 is fixed to the door 15 by a fixing means known per se.

According to the present invention, the support 21 includes a cooked product P.
And a plurality of support means for supporting the and providing a minimum number of contact points between the cooked item P and the cooking jacket. The support base 21 is
The door 15 is provided so that the cooked product left on the plurality of supporting means after the door is closed occupies the central position 23 in the inner space of the small box 2.
It is held in one area 22 of. The support means is composed of a material that is transparent to both microwaves and infrared rays, for example a material of quartz or tempered glass.

According to FIG. 2, the supporting means is, for example, the door 15
4 supporting arms 2 that are laterally protruding
4, 25, 26 and 27. The first end of each of these supporting arms 24, 25, 26, 27 is the door 15
The other ends of the supporting arms 24, 25, 26, 27 are connected to the supporting arms 24, 25, 26, 2 respectively.
Each of the seven is connected to an arm 28 at right angles. The assemblies 24, 25, 26, 27 and 28 thus form a rectangular frame. The support can be in any other shape.

According to FIG. 3, the support means consist of a table 30 arranged on the plate 29 at a distance. These pedestals 30 are made of, for example, a molded product made of tempered glass. The platform 30 has, for example, a pyramidal shape, such that the apex provides a very small point of contact with the food item P. In another embodiment, not shown, the support means consist, for example, of a grid projecting into the door 15.

In all embodiments of the support means, and more particularly in the embodiments described with reference to FIGS. 2 and 3, the cooked product P covered by the cooking jacket has a minimum number of pieces on the support means. It is left stationary at the contact point. As is well known per se, the cooking envelope is composed of a heat-resistant plastic or specialty paper bag that is perforated so as to avoid overpressure and thus rupture of the bag.

In fact, in each of the embodiments described above, the cooked product P is not placed on a uniform surface. In this way, when the thawing / heating machine is operating, the accumulation of water vapor between the cooked food P and the cooking casing is avoided, and the infrared and microwave radiation is optimized.

[Brief description of drawings]

FIG. 1 Thaw provided with a door equipped with a support according to the present invention
Schematic vertical cross-section of the heater.

FIG. 2 is an external view of a door provided with a support base according to the first embodiment of the present invention.

FIG. 3 is an external view of a door provided with a support base according to a second embodiment of the present invention.

[Explanation of symbols]

 1 Thaw / heater for quick-frozen cooked products 2 Small box 3 Internal space of small box 2 4 Same side surface 5 Same bottom surface 6 Same ceiling surface 7,8 Microwave radiation supply port 9,10 Micro radiator 11 Small box 2 Rear wall 12 Same as front charging opening 13,14 Baffle plate 15 Door 16 Sliding structure 17,18 Sliding structure arm 19 Groove 20 Caster 21 Support stand 22 One section of door 15 23 Central position of the internal space 3 24-27 support arm 28 arm 29 plate 30 units P cooked product IR1, IR2 infrared radiator

Claims (9)

[Claims] 1. On the one hand at least one inlet (7 or 8) of microwaves emitted by at least one microwave radiator (9 or 10) as well as by at least one infrared radiator (IR1 or IR2). Has at least one supply port for infrared light which is open and on the other hand has a casket (2) defining an interior space (3) in which the cooked product (P) is placed, said casket (2) passing through it. Has a front charging opening (12) into which the cooked product (P) is inserted,
A cooking jacket, the front charging opening (12) of which is impermeable to microwaves and which is closed by a door (5) connected to a support (21) on which the cooked product (P) rests. In the thawing and heating machine for quick-frozen cooked food wrapped in
A support means (1) for supporting the cooked product (P) and creating a minimum number of contact points between the cooked product (P) and the cooking jacket.
4, 25, 26, 27, 28 and 29, 30). 2. The thawing / heating machine according to claim 1, wherein the supporting means is made of a material that transmits microwaves and infrared rays. 3. The thawing / heating machine according to claim 2, wherein the material that transmits microwaves and infrared rays is tempered glass. 4. The support table (21) is such that, after the door (15) is closed, the cooked food (P) left standing on a plurality of supporting means is located at the central position () in the internal space (3) of the small box (2). Defrosting / heating machine according to any one of claims 1 to 3, characterized in that it is held in a section (22) of the door (15) so as to occupy 23). 5. Thaw according to any one of claims 1 to 4, characterized in that the support means consist of a table (30) arranged on the plate (29) at a distance. -Heating machine. 6. The thawing / heating machine according to claim 5, wherein the platform (30) has a pyramid shape. 7. The support means comprises at least two spaced support arms projecting laterally from the door (15). The thawing / heating machine described in. 8. The thawing / heating machine according to claim 7, wherein the support base (21) has a rectangular frame for supporting at least two supporting arms (24, 25). 9. A thawing and heating machine according to claim 1, characterized in that the support means are constituted by a lattice which projects laterally into the door (15).