JP2021148320A - Rack and cooling device provided with the same - Google Patents

Abstract

To provide a rack capable of impressing high voltage by easily connecting electrodes to a plurality of trays displaced side by side: and to provide a cooling device provided with the rack.SOLUTION: A rack includes: a plurality of trays 11, 12 which are each composed of an electric conductor, in which a plurality of first trays 11 connected to a first electrode and a plurality of second trays 12 connected to a second electrode are alternately disposed and the high voltage is impressed between the first electrode and the second electrode; and an electrode 13A which is composed of an electric conductor, is installed so as to bridge the plurality of first trays 11 to connect the plurality of first trays 11 to the first electrode and is provided with a plurality of engagement parts 13B each of which is composed of an electric conductor and detachably engaged with the plurality of first trays 11.SELECTED DRAWING: Figure 13

Description

The present invention relates to a rack that applies a high voltage to an object and a cooling device including the rack.

Conventionally, in order to maintain the freshness of fresh foods such as vegetables, raw meat, seafood and fruits, frozen storage has been performed. Freezing storage is performed by rapidly freezing the object to be frozen from room temperature to −35 ° C. to −45 ° C. in the frozen portion. However, such a method has a problem that drip occurs when the frozen product is thawed and the frozen product becomes watery. The occurrence of drip is caused by the enlargement of intracellular ice crystals during freezing, which destroys the cell membrane. When the cell membrane is destroyed in this way, the intracellular water flows out from the destroyed cell membrane at the time of thawing, and drip occurs.

Therefore, the applicant has developed, for example, the continuous freezing device described in Patent Document 1. In this continuous freezing device, a temperature in the range of 0 ° C. to -5 ° C. from room temperature to the freezing point is applied in a state where a high voltage is applied to an object on an endless annular body to activate its composition molecules. By cooling to, the object is supercooled without freezing to make the temperature inside the object uniform, and then by quick freezing to the freezing point to -40 ° C, the intracellular water content is enlarged. Without this, the state of fine ice crystals is maintained, and the object is frozen without destroying the cell membrane.

Further, for example, in Patent Document 2, a plurality of trays (pan cases) on which the object to be frozen is placed are supported on the frame body arranged in the refrigerator, and the first electrode is directly above each tray and directly below the lowest stage. An ultra-rapid freezing device is disclosed in which plates and second electrode plates are alternately arranged every other plate, a high-voltage AC potential is applied to the first electrode plate, and a ground portion is connected to the second electrode plate. In this ultra-rapid refrigeration system, when a high-pressure AC potential is applied to the first electrode plate, an electric field whose direction is periodically reversed is generated in the space between the first electrode plate and the upper and lower second electrode plates facing each other. A vertical electric field acts on the refrigerated object on each pan case located in the space.

Japanese Patent No. 4853868 Registered Utility Model No. 3101162

In the ultra-rapid freezing apparatus described in Patent Document 2, in order to apply an electric field to the object to be frozen on each tray, the first electrode plate and the second electrode plate are alternately arranged directly above each tray and directly below the bottom stage. However, every other plate has a structure in which a high-pressure AC potential generator is connected to the first electrode plate and a ground portion is connected to the second electrode plate. Note that Patent Document 2 does not specifically describe the structure in which each electrode plate is connected to the high-voltage AC potential generator and the ground portion.

An object of the present invention is to provide a rack capable of easily connecting electrodes to a plurality of trays arranged side by side and applying a high voltage, and a cooling device including the rack.

The rack of the present invention is composed of conductors, and is a plurality of trays in which a plurality of first trays connected to the first pole and a plurality of second trays connected to the second pole are alternately arranged. An electrode consisting of a plurality of trays to which a high voltage is applied between a pole and a second pole and a conductor, which is erected so as to span a plurality of first trays and connects the plurality of first trays to the first pole. It has an electrode made of a conductor and having a plurality of hooking portions that are detachably hooked on a plurality of first trays.

According to the rack of the present invention, it is possible to connect a plurality of first trays to the first pole only by installing electrodes so that the plurality of hooking portions are hooked on the plurality of first trays. , It is possible to apply a high voltage between a plurality of first trays connected to the first pole and a plurality of second trays connected to the second pole.

The rack of the present invention is composed of conductors, and is a plurality of trays in which a plurality of first trays connected to the first pole and a plurality of second trays connected to the second pole are alternately arranged. An electrode consisting of a plurality of trays to which a high voltage is applied between a pole and a second pole and a conductor, which is erected so as to span a plurality of first trays and connects the plurality of first trays to the first pole. The present invention has an electrode composed of a conductor and having a plurality of hooking portions to which a plurality of first trays can be detachably hooked, and the plurality of first trays are fitted to the plurality of hooking portions, respectively. It is provided with a fitting portion.

According to the rack of the present invention, the plurality of first trays can be made into the first pole by simply fitting the fitting portions of the first tray to the hooking portions of the erected electrodes. It becomes possible to connect, and it becomes possible to apply a high voltage between a plurality of first trays connected to the first pole and a plurality of second trays connected to the second pole.

Further, the rack of the present invention is composed of an insulator, a first tray receiver that supports a plurality of first trays, and a conductor, and is composed of a second tray receiver that supports a plurality of second trays, and a conductor. It has a frame in which one tray receiver and a second tray receiver are fixed, and a plurality of first trays are connected to a first pole via a plurality of hooking portions and electrodes, and a plurality of second trays are connected to the first pole. The tray is preferably connected to the second pole via a second tray receiver and a frame. As a result, after the first tray is supported by the first tray receiver and the second tray is supported by the second tray receiver, the electrodes are attached so that the plurality of hooking portions are respectively hooked on the plurality of first trays. By simply fitting the fitting portions of the first tray to the hooking portions of the erected or the plurality of hooking portions of the erected electrodes, the first tray has the plurality of hooking portions and the electrodes. A plurality of first trays connected to a first pole via a second pole, a second tray connected to a second pole via a second tray receiver and a frame, and a plurality of first trays connected to the first pole and a plurality of connected to the second pole. It is possible to apply a high voltage between the second tray and the second tray.

(1) A plurality of trays composed of conductors, in which a plurality of first trays connected to the first pole and a plurality of second trays connected to the second pole are alternately arranged, and the first pole and the first pole are arranged. It consists of a plurality of trays to which a high voltage is applied between the two poles and a conductor, and is an electrode erected so as to span the plurality of first trays and connects the plurality of first trays to the first pole. According to a rack comprising an electrode having a plurality of hooking portions that are detachably hooked on a plurality of first trays, the plurality of hooking portions are respectively hooked on the plurality of first trays. By simply arranging the electrodes as described above, a plurality of first trays can be easily connected to the first pole, and a plurality of first trays connected to the first pole and a plurality of second trays connected to the second pole can be connected. It is possible to apply a high voltage between the tray and the tray.

(2) A plurality of trays composed of conductors, in which a plurality of first trays connected to the first pole and a plurality of second trays connected to the second pole are alternately arranged, and the first pole and the first pole are arranged. It consists of a plurality of trays to which a high voltage is applied between the two poles and a conductor, and is an electrode erected so as to span the plurality of first trays and connects the plurality of first trays to the first pole. It is composed of an electrode having a plurality of hooking portions to which a plurality of first trays are detachably hooked, and a plurality of first trays are fitted to each of the plurality of hooking portions. According to the rack provided with the portions, the fitting portions of the first tray are simply fitted to the hooking portions of the plurality of hooking portions of the erected electrodes, and the plurality of first trays can be easily put into the first tray. It is possible to connect to one pole and apply a high voltage between a plurality of first trays connected to the first pole and a plurality of second trays connected to the second pole.

(3) The rack is composed of an insulator, a first tray receiver that supports a plurality of first trays, and a conductor, and is composed of a second tray receiver that supports a plurality of second trays, and a conductor, and is composed of a first tray. The receiver and the second tray have a frame to which the receiver is fixed, and a plurality of first trays are connected to the first pole via a plurality of hooks and electrodes, and the plurality of second trays are connected. By being connected to the second pole via the second tray receiver and the frame, the first tray is supported by the first tray receiver, and the second tray is supported by the second tray receiver. The electrodes are erected so that the hooking portions of the first tray are hooked on the plurality of first trays, or the fitting portions of the first tray are hooked on the plurality of hooking portions of the erected electrodes. A high voltage can be applied between the plurality of first trays connected to the first pole and the plurality of second trays connected to the second pole simply by fitting the portions.

It is a schematic plan view which shows the internal structure of the cooling apparatus in 1st Embodiment of this invention. It is a schematic front view which shows the internal structure of the cooling apparatus in 1st Embodiment of this invention. It is a schematic right side view which shows the internal structure of the cooling apparatus in 1st Embodiment of this invention. It is a front view of a rack. It is a right side view of a rack. FIG. 4 is a sectional view taken along line VI-VI of FIG. FIG. 4 is a cross-sectional view taken along the line VII-VII of FIG. It is an enlarged view of VIII part of FIG. It is an enlarged view of the IX part of FIG. FIG. 5 is an enlarged view of part X in FIG. It is a perspective view of a rack. (A) is a perspective view of the electrode unit as viewed from the front side, and (B) is a perspective view of the electrode unit as viewed from the back side. It is a perspective view which shows the state which erected the electrode unit in a rack. It is a schematic plan view which shows the internal structure of the cooling apparatus in 2nd Embodiment of this invention. It is a schematic front view which shows the internal structure of the cooling apparatus in 2nd Embodiment of this invention. It is a schematic right side view which shows the internal structure of the cooling apparatus in 2nd Embodiment of this invention. It is a front view of a rack. It is a right side view of a rack. It is a schematic perspective view which shows the internal structure of the 1st pole unit. It is a schematic perspective view which shows the internal structure of the 2nd pole unit. It is a perspective view which shows how the rack advances toward a 1st pole unit and a 2nd pole unit. It is a perspective view which shows the state which the rack is connected to the 1st pole unit and the 2nd pole unit. It is a right side view which shows the internal structure in the state which the rack is connected to the 1st pole unit and the 2nd pole unit.

<Embodiment 1>
FIG. 1 is a schematic plan view showing the internal structure of the cooling device according to the first embodiment of the present invention, FIG. 2 is a schematic front view, and FIG. 3 is a schematic right side view. In the present specification, "front" as a term indicating a direction refers to the lower side with reference to FIG. 1, and "rear" refers to the upper side with reference to FIG. Further, "upper", "lower", "left", and "right" refer to the upper side, the lower side, the left side, and the right side, respectively, with reference to FIG.

As shown in FIGS. 1 to 3, the cooling device 1A according to the first embodiment of the present invention is provided in a rack 3 in which an object to be cooled is housed and a rack 3 in a cooling cabinet 2 insulated from the outside. It has an erected electrode unit 13, a cooler 4 that cools the air in the cooler 2, and a cooling fan 5 that sucks the air in the cooler 2 and sends it to the cooler 4. On the front surface of the cooling device 1A, an opening / closing door 6 for taking in and out an object to be cooled is provided in the rack 3. Further, a high voltage generator 7 connected to the electrode unit 13 is provided above the cooling device 1A.

The high voltage generator 7 is a device that generates a high voltage, for example, a DC pulse voltage of 800V to 10000V, more preferably 3000V to 7000V, and even more preferably 4000V to 5000V. The DC pulse voltage intermittently repeats application of a high voltage and no application at intervals of 0.001 seconds to 0.2 seconds. Alternatively, the high voltage generator 7 may be a device that generates an AC voltage (frequency 50 Hz to 500 Hz) of, for example, 800 to 10000 V, more preferably 3000 to 7000 V, and even more preferably around 3500 V. The voltage value and frequency of the high voltage generator 7 are changed according to the object to be cooled.

4 is a front view of the rack 3, FIG. 5 is a right side view, FIG. 6 is a sectional view of VI-VI of FIG. 4, FIG. 7 is a sectional view of VII-VII of FIG. 9, FIG. 9 is an enlarged view of the IX portion of FIG. 4, FIG. 10 is an enlarged view of the X portion of FIG. 5, FIG. 11 is a perspective view of the rack 3, and FIG. 12 (A) is a perspective view of the electrode unit 13 as viewed from the front side. B) is a perspective view seen from the back side, and FIG. 13 is a perspective view showing a state in which the electrode unit 13 is erected on the rack 3.

As shown in FIGS. 4 and 5, the rack 3 includes a frame 10 fixed in the cooling cabinet 2, a plurality of first trays 11 and a plurality of second trays alternately arranged in the vertical direction with respect to the frame 10. It has a tray 12 and an electrode unit 13 erected over a plurality of first trays 11. The frame 10, the first tray 11, the second tray 12, and the electrode 13A of the electrode unit 13 described later are made of a conductor such as stainless steel, steel, or an aluminum alloy. The electrode 13A is connected to the positive electrode as the first pole via the high voltage cable 14, that is, is connected to the output terminal of the high voltage generator 7 in this embodiment.

As shown in FIGS. 4, 5 and 11, for example, the frame 10 has a main body 10A formed in a rectangular parallelepiped shape by, for example, an angle member, and legs provided at the bottom of the main body 10A and fixed in the cooler 2. It is composed of a part 10B. Inside the main body 10A, a first tray receiver 15 that supports the left and right ends of the plurality of first trays 11 and a second tray receiver 16 that supports the left and right ends of the plurality of second trays 12 are vertically and vertically arranged. It is fixed alternately in the direction.

The first tray receiver 15 is made of an insulator such as ultra-high molecular weight polyethylene (UHPE) or polyacetal (POM). As shown in FIG. 8, the first tray 11 supported by the first tray receiver 15 is in an insulated state from the frame 10. On the other hand, the second tray receiver 16 is made of a conductor such as stainless steel, steel, or an aluminum alloy. As shown in FIG. 9, the second tray 12 supported by the second tray receiver 16 is in a conductive state with the frame 10 and is connected to the negative electrode as the second pole via the frame 10, that is, in the present embodiment. Is grounded by the ground wire 17.

The first tray 11 and the second tray 12 have cooling objects placed on the bottoms 11A and 12A, respectively, and are inserted into the frame 10. The bottoms 11A and 12A are provided with a large number of openings 11B and 12B. The air sucked by the cooling fan 5 and sent to the cooler 4 and cooled by the cooler 4 circulates up and down in the cooler 2 through these openings 11B and 12B.

The first tray 11 and the second tray 12 can be inserted into the frame 10 by sliding on the first tray receiver 15 and the second tray receiver 16 from the front to the rear of the frame 10, respectively. The second tray 12 fits inside the frame 10 when it is inserted all the way into the frame 10, but the first tray 11 projects forward from the frame 10. That is, although details will be described later, as shown in FIGS. 6 and 7, when the electrode units 13 are attached to the plurality of first trays 11, there is a gap between the electrode units 13 and the plurality of second trays 12. It is formed so that the electrodes 13A of the electrode unit 13 and the plurality of second trays 12 do not come into contact with each other and do not conduct with each other.

As shown in FIGS. 5, 10 and 12, the electrode unit 13 is installed so as to span the plurality of first trays 11 and is connected to the output terminal of the high voltage generator 7 via the high voltage cable 14. 13A, a plurality of hooking portions 13B that are detachably hooked to the plurality of first trays 11, a support portion 13C that supports the electrode 13A, and a handle for gripping by hand when attaching the electrode unit 13. It has a part 13D. The hooking portion 13B is made of a conductor such as stainless steel, steel, or an aluminum alloy, and is in a conductive state with the electrode 13A. The support portion 13C and the handle portion 13D are made of an insulator such as ultrapolymer polyethylene (UHPE) or polyacetal (POM). The hooking portion 13B is made of a spring material, and as shown in FIG. 10, is fixed to the electrode 13A by a bolt 13E made of a conductor such as stainless steel, steel or an aluminum alloy.

In the cooling device 1A having the above configuration, after the objects to be cooled are placed on the plurality of first trays 11 and the plurality of second trays 12, the plurality of first trays 11 and the plurality of second trays are placed through the opening / closing door 6. 12 are alternately placed on the first tray receiver 15 and the second tray receiver 16 in the rack 3 (see FIG. 11). After that, as shown in FIG. 13, the electrode unit 13 is erected on the plurality of first trays 11. The electrode unit 13 is erected by gripping the handle portion 13D and inserting the plurality of hooking portions 13B from above so as to be hooked on the respective front wall portions 11C of the plurality of first trays 11.

As a result, the electrode unit 13 is fixed to the front wall portions 11C of the plurality of first trays 11 by the restoring force of the hooking portion 13B, the electrodes 13A and the plurality of first trays 11 are in a conductive state, and the plurality of first trays 11 are connected. 1 The tray 11 and the output terminal of the high voltage generator 7 are connected. On the other hand, the plurality of second trays 12 are simply placed on the second tray receiver 16 and are grounded by the ground wire 17 via the second tray receiver 16 and the frame 10.

As described above, in the rack 3 of the present embodiment, the plurality of first trays 11 can be easily obtained by simply installing the electrode units 13 so that the plurality of hooking portions 13B are hooked on the plurality of first trays 11. Can be connected to the output terminal of the high voltage generator 7 to apply a high voltage between the plurality of first trays 11 and the plurality of second trays 12. Then, according to the cooling device 1A provided with the rack 3, a high voltage of 800V to 10000V is applied to the object to be cooled to activate the composition molecules thereof, and the temperature is 0 ° C. from room temperature with reference to the freezing point. By cooling to a temperature in the range of ~ -5 ° C, the object is supercooled without freezing to homogenize the temperature inside the object, and then the cell membrane is rapidly frozen to the freezing point ~ -40 ° C. It is possible to freeze the object to be cooled without destroying the object.

<Embodiment 2>
14 is a schematic plan view showing the internal structure of the cooling device according to the second embodiment of the present invention, FIG. 15 is a schematic front view, and FIG. 16 is a schematic right side view. In the following, the parts common to the first embodiment are designated by the same reference numerals, and detailed description thereof will be omitted.

As shown in FIGS. 14 to 16, the cooling device 1B in the second embodiment of the present invention is a rack 8 provided with casters 9 for movement instead of the rack 3 described above. Further, in the cooling cabinet 2, a first pole unit 21 connected to the first tray 11 housed in the rack 8 and a second pole unit 22 connected to the frame 20 of the rack 8 are provided.

17 is a front view of the rack 8, FIG. 18 is a right side view, FIG. 19 is a schematic perspective view showing the internal structure of the first pole unit 21, and FIG. 20 is a schematic perspective view showing the internal structure of the second pole unit 22. FIG. 21 is a perspective view showing how the rack 8 is advanced toward the first pole unit 21 and the second pole unit 22, and FIG. 22 shows a state in which the rack 8 is connected to the first pole unit 21 and the second pole unit 22. FIG. 23 is a right side view showing an internal structure in a state where the rack 8 is connected to the first pole unit 21 and the second pole unit 22.

As shown in FIGS. 17 and 18, the rack 8 is provided with moving casters 9 in the lower part of the frame 20 in which the plurality of first trays 11 and the plurality of second trays 12 are accommodated. The frame 20 is formed in a rectangular parallelepiped shape by, for example, an angle member made of a conductor such as stainless steel, steel, or an aluminum alloy. Inside the frame 20, a first tray receiver 15 that supports the left and right ends of the plurality of first trays 11 and a second tray receiver 16 that supports the left and right ends of the plurality of second trays 12 are vertically oriented. It is fixed alternately to.

As shown in FIG. 19, the first pole unit 21 is installed so as to span a plurality of first trays 11, and is connected to the output terminals of the high voltage generator 7 via the high voltage cable 14 and a plurality of electrodes 21A. The first tray 11 of the above has a hooking portion 21B to which the first tray 11 is detachably hooked. The hooking portion 21B is made of a spring material, and is fixed to the electrode 21A by a bolt 21C made of a conductor such as stainless steel, steel, or an aluminum alloy. The first pole unit 21 is fixed in the cooling chamber 2 so as not to move.

On the other hand, behind the first tray 11, as shown in FIG. 18, a tongue piece 11D as a fitting portion to be fitted to the hooking portion 21B is provided. The electrode 21A, the hooking portion 21B and the tongue piece 11D are made of a conductor such as stainless steel, steel or aluminum alloy, and when the tongue piece 11D is fitted into the hooking portion 21B, the first tray 11 is in a conductive state with the electrode 21A. Become.

The second pole unit 22 has an electrode 22A connected to the ground wire 17 and a hooking portion 22B on which the frame 20 is detachably hooked. The hooking portion 22B is made of a spring material, and is fixed to the electrode 22A by a bolt 22C made of a conductor such as stainless steel, steel, or aluminum alloy. The second pole unit 22 is fixed in the cooling cabinet 2 so as not to move.

On the other hand, behind the frame 20, as shown in FIG. 18, a tongue piece 20A as a fitting portion to be fitted to the hooking portion 22B is provided. The electrode 22A, the hooking portion 22B, and the tongue piece 20A are made of a conductor such as stainless steel, steel, or an aluminum alloy. When the tongue piece 20A fits into the hooking portion 22B, the frame 20 becomes conductive with the electrode 22A and is grounded. It is grounded by wire 17.

In the cooling device 1B having the above configuration, the object to be cooled is placed on the plurality of first trays 11 and the plurality of second trays 12, and then placed on the first tray receiver 15 and the second tray receiver 16 in the rack 8. Place. Then, as shown in FIG. 21, the rack 8 is advanced into the cooling chamber 2, and as shown in FIGS. 22 and 23, the tongue pieces 11D of the plurality of first trays 11 and the tongue pieces 20A of the frame 20 are first. The rack 8 is pushed in until it fits into the hooking portion 21B of the pole unit 21 and the hooking portion 22B of the second pole unit 22.

As a result, the plurality of first trays 11 are in a conductive state with the electrodes 21A via the tongue pieces 11D, respectively, and the plurality of first trays 11 and the output terminals of the high voltage generator 7 are connected to each other. On the other hand, the frame 20 is in a conductive state with the electrode 22A via the tongue piece 20A, and is grounded by the ground wire 17.

As described above, in the rack 8 of the present embodiment, a plurality of first trays can be easily obtained by simply fitting the tongue pieces 11D of the first tray 11 to the plurality of hooking portions 21B of the erected electrodes 21A. By connecting 11 to the output terminal of the high voltage generator 7, it is possible to apply a high voltage between the plurality of first trays 11 and the plurality of second trays 12. Then, even in the cooling device 1B provided with the rack 8, a high voltage of 800V to 10000V is applied to the object to be cooled to activate the composition molecules thereof, and the temperature is 0 ° C. to 0 ° C. based on the freezing point from normal temperature. By cooling to a temperature in the range of -5 ° C, the object is supercooled without freezing to homogenize the temperature inside the object, and then the cell membrane is rapidly frozen to the freezing point to -40 ° C to cool the cell membrane. It is possible to freeze the object to be cooled without destroying it.

The rack of the present invention is useful as a device for applying a high voltage to an object, and is particularly suitable for a cooling device for cooling an object by applying a high voltage.

1A, 1B Cooling device 2 Cooler 3, 8 Rack 4 Cooler 5 Cooling fan 6 Opening and closing door 7 High voltage generator 9 Caster 10 Frame 10A Main body 10B Leg 11 1st tray 11A Bottom 11B Opening hole 11C Front wall 11D Tongue piece 12 2nd tray 13 Electrode unit 13A Electrode 13B Hook part 13C Support part 13D Handle part 13E Bolt 14 High voltage cable 15 1st tray receiver 16 2nd tray receiver 17 Ground wire 20 Frame 20A Tongue piece 21 1st pole unit 21A , 22A Electrode 21B, 22B Hooking part 21C, 22C Bolt 22 2nd pole unit

Claims (4)

A plurality of trays composed of conductors, in which a plurality of first trays connected to the first pole and a plurality of second trays connected to the second pole are alternately arranged, and the first pole and the second pole are arranged. Multiple trays to which a high voltage is applied between the poles,
It is an electrode made of a conductor, erected so as to span the plurality of first trays, and connecting the plurality of first trays to the first pole. A rack with electrodes having multiple hooks to be stopped. A plurality of trays composed of conductors, in which a plurality of first trays connected to the first pole and a plurality of second trays connected to the second pole are alternately arranged, and the first pole and the second pole are arranged. Multiple trays to which a high voltage is applied between the poles,
It is an electrode made of a conductor and erected so as to span the plurality of first trays and connect the plurality of first trays to the first pole. The plurality of first trays made of a conductor are detachably hooked. It has an electrode with a plurality of hooks to be stopped,
A rack provided with a fitting portion in which the plurality of first trays are fitted to the plurality of hook portions. A first tray receiver made of an insulator and supporting the plurality of first trays,
A second tray receiver consisting of a conductor and supporting the plurality of second trays,
It is made of a conductor and has a frame to which the first tray receiver and the second tray receiver are fixed.
The plurality of first trays are connected to the first pole via the plurality of hooking portions and the electrodes.
The rack according to claim 1 or 2, wherein the plurality of second trays are connected to the second pole via the second tray receiver and the frame. A cooling device including the rack according to any one of claims 1 to 3.

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