JPS6231903B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a pair of ventilation openings of a thawing machine with multiple shelves for storing items to be thawed, and a box-shaped cart having openings on both sides so that each opening communicates with the shelf. The present invention relates to a thawing device in which a predetermined wind direction changing cart is connected to an opening in an end face of the box-shaped cart.

Generally, in a thawing device, the purpose of using connected carts as an air circulation path is to guide air whose temperature and humidity have been adjusted to the thawing device, and to distribute the air as evenly as possible to the items to be thawed in the refrigerator. This is because it is possible.

In other words, the trolley connection method connects trolleys with an appropriate cross-sectional area commensurate with the throughput to form an air circulation path, which provides a rectifying effect while minimizing the air volume, and also within the allowable length. Reversing the direction of wind movement at appropriate time intervals is also an important element in order to maintain the same quality of thawed products inside the chamber.

However, the conventional thawing apparatus for achieving the above-mentioned purpose has a structure in which a group of carts are accommodated in a thawing warehouse to enable mass thawing. However, there were problems with handling such as the connection of the trolleys, and it was inevitable that the equipment would become bulky. Furthermore, there is a drawback that the thawing temperature, humidity, or thawing speed within the thawing chamber varies in distribution and is not constant, resulting in uneven thawing, and this tendency becomes more pronounced as the size becomes larger.

The present invention has been made in view of the above-mentioned circumstances, and includes a multi-level removable shelf for storing items to be thawed, and a box-shaped trolley with an insulated structure having openings on opposing front and rear surfaces. Instead of partitioning the top and bottom, left and right sides, or separating the openings of the carts, arrange them in two rows and connect a large number of the openings of these various carts to form an arbitrary duct-like circulation passage, and use the opening on one side as a thawing machine. At the same time as connecting to a pair of ventilation holes provided on the side, a wind direction changing trolley is connected to the opening on the other side.
It is configured to circulate air by alternating the direction of the wind according to a predetermined ventilation pattern. In order to achieve effective thawing by reducing the amount of air, the trolleys are precisely aligned to prevent leakage of the circulating air. The purpose of the present invention is to provide a thawing device that has a structure that reduces the amount of thawing and eliminates a thawing storehouse for housing a cart in terms of equipment.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a partially cutaway perspective view showing an embodiment of the defrosting device according to the present invention. Reference numeral 1 denotes a cart having a heat-insulating structure on all four sides. The trolley 1 is divided into upper and lower parts by a partition plate 2, and above and below the partition plate 2 of the cart 1, shelves ₁₁ to _1o for storing items to be thawed are provided in multiple stages, and openings are provided on both sides in the front and rear directions. It is a box-shaped cart.

A pair of fixed wheels and a pair of flexible wheels are attached to the bottom surface of the cart 1, and the cart 1 is configured to be movable by means of a guide/handle 3 fixed to both sides of one opening.

On the other hand, the defrosting device in which a large number of the above-mentioned carts 1 are connected is provided with a wind direction reversing chamber 4, and a pair of ventilation ports (not shown) such as an air outlet and a suction port are connected to the wind direction reversing chamber 4. The ends of the carts 1 are connected to each other via a rectification chamber 5 provided.

Further, the thawing device is equipped with a refrigerator 6, a perforated humidifying tower 7, a fan motor 8, a circulation fan 9, an operation control panel 10, etc., so that various controls can be performed. Reference numeral 11 denotes a guide that guides the trolley 1 when it is connected to the defrosting device with high accuracy, and is guided by free bearings 12 and the like installed at the lower ends of both sides of the trolley 1 in sliding contact. FIG. 1B is a circuit configuration diagram showing the thawing method in the thawing apparatus according to the present invention, in which 4 is a Danver-type wind direction reversal chamber using a reversing duct, 7 is a gas-liquid contact tower of perforated plate type, etc., and 6a is an evaporator. , 6b is a heater. In the above configuration, the evaporator 6a, the refrigerator 6,
The heater 6b is used to adjust the temperature of the liquid in the gas-liquid contact tower 7, that is, the temperature of the liquid.First, the heater 6b is operated to preheat the liquid.
The refrigerator 6 is gradually operated in accordance with the difference in temperature from the required temperature of the object to be thawed. Also, pipe a
indicates the flow of liquid, and pipe b indicates the flow of air. To explain the operation of the thawing device configured as described above, the refrigerator 6 produces a refrigerant in the cooling means of the circulation tank 33, and the circulation pump 35 produces a refrigerant in the gas-liquid contact tower 7.
This is a pump that circulates water or antifreeze between the tank and the circulation tank 33. Further, the circulation fan 9 is a blower that circulates air whose humidity and temperature have been adjusted in the gas-liquid contact tower 7 into the truck 1. 1 circulation tank 33
This gas-liquid contact tower deodorizes the circulating air and generates high-humidity wind, which is circulated through a trolley through a wind direction reversal mechanism to remove frozen products stored on shelves. The product to be thawed is thawed.

Furthermore, when the opening of the trolley 1 is connected to the defrosting device to form a ventilation duct, a wind direction changing trolley 13 is connected to the opposite side, and the ventilation ducts partitioned into the upper and lower parts of the trolley 1 are connected to each other to allow air to flow through the ventilation duct. It is designed to form a circulation path for the flow. As shown in the cross-sectional view of FIG. 2, the wind direction conversion truck 13 has an opening on only one side connected to the truck 1, and a rectifying plate 13a is attached to this opening surface, and a corner of the inner rear wall is opened. A baffle plate 14 for preventing excessive flow is installed in the section. Note that fixed wheels and flexible wheels for movement are mounted on the bottom surface of the reversing cart 13, and free bearings 12 are mounted on the lower ends of both sides.

Next, the thawing operation of the trolley 1 using the thawing device configured as described above will be explained.

First, the items to be thawed are stored on the shelves 1 ₁ to 1 _o of the trolley 1 and connected so that the openings are in contact with the rectifying chamber 5 having the ventilation opening of the thawing device. Concatenated. After a predetermined number of carts 1 are connected, the wind direction changing carts 13 are connected to form a ventilation duct. Next, the control panel 10 is operated to operate the thawing device to blow circulating air and thaw the items in the trolley 1.

At this time, as shown in FIG. 3, the circulating air passes through the wind direction reversing chamber 4 and is ventilated from the upper or lower side of the truck 1 partitioned by the partition plate 2.
3, returns to the wind direction reversal chamber 4 through the opposite side, and thaws the items in the cart 1 uniformly.

Note that if the above-mentioned ventilation in a certain direction is carried out for a certain period of time, there will be a difference in the degree of thawing between the upper and lower stages of the trolley 1, so the damper is switched by a timer or other switching device to change the flow path of the circulating air. It is now possible to change the ventilation pattern, such as by flipping it upside down.

4 to 7 are perspective views of main parts showing other embodiments of the present invention, and FIG. 4 shows a trolley 20.
FIG. 2 is a partially cutaway perspective view. The above-mentioned trolley 20 is
Upper and lower by horizontal partition plate 20a and vertical partition plate 20b,
It is divided into four left and right compartments, and each compartment is equipped with multiple shelves or trays for storing items to be thawed.
As shown in FIG. 5, the cart 20 configured as described above is connected on the thawing device side to the rectifying chamber 5 having a pair of ventilation holes via the reversing part 21, and on the opposite side is connected to the wind direction changing cart 22. As a result, a ventilation duct is formed within the truck 20.

As shown in FIGS. 6A and 6B, the inversion section 21 has a heat insulating structure on its outer circumferential side, and is divided into upper and lower parts by a horizontal partition wall 21a, and a lower stage partitioned by the horizontal partition wall 21a. Alternatively, the upper stage is divided into left and right parts by a vertical partition wall 21a, each of which is configured to communicate with a circulating air outlet or suction port, and both front and rear surfaces are open. Also, at this time,
The upper or lower tier except for the portion partitioned left and right by the vertical partition wall 21b is closed by the wall 21c,
A reversal chamber is formed so that the circulating air is reversed from side to side.

In addition, as shown in FIG. 7, the wind direction changing cart 22 is divided into left and right halves by a vertical partition wall 22.
Circulating air inside the truck 20 is turned upward and downward on each side.

In addition, in FIG. 5, a guide groove 23 is formed in the passage of the cart 20, so that the carts 20 can be connected accurately and the carts 20 can be moved smoothly. .

Next, the defrosting operation by the truck 20, the reversing section 21, and the wind direction changing truck 22 configured as described above will be explained.

FIG. 8 shows a case where the air outlet and suction port are located on the left and right sides of the upper stage of the reversing part 21, and the circulating air is blown out from the left or right of the reversing part 21 and distributed from the upper stage of the left or right side of the truck 20. Wind direction changing trolley 22
, it is turned to the lower stage side and returns to the reversing section 21 again. Here, since the lower stage side of the reversing part 21 is a reversing chamber, it can be reversed to the right or left side, and the air flows from the lower stage of the right or left side of the truck 20 to the wind direction changing truck 22.
It is converted to the upper stage side and returns.

Further, when the above-mentioned ventilation is performed for a certain period of time, the damper is switched by a timer or other switching device, and the flow path of the circulating air is switched between the left and right sides, and the ventilation pattern is changed.

In addition, in FIG. 8, if a structure in which the lower part of the horizontal partition wall 21a is divided into left and right sides by a vertical partition wall 21b is used in the reversing part 21, two ventilation patterns completely opposite to the above-mentioned ventilation pattern can be obtained. It is something.

In other words, when the trolley 20 is divided into four by the horizontal partition wall 20a and the vertical partition plate 20b, the ventilation pattern of the circulating air can be selected in four ways by appropriately setting the reversing section 21 and the wind direction changing trolley 22. This means that the inside of the truck 20 is thawed evenly.

As an application example of the present invention, the cart 20 is not only divided into four parts as described above, but also the cart 1, which is divided into two parts vertically, is arranged in two rows on the left and right, as explained in FIGS. 1 and 2 above. The same effect can be obtained even if the

Further, as shown in FIGS. 1 and 5, the above-mentioned carts 1 and 20 are provided with a guide 11 and a guide groove 23 to facilitate the connection operation of the carts. First, a clamping device 32 between the carts 30 and the wind direction changing carts 31 arranged in two rows as shown in FIG. 9 may be used to securely move and connect them.

This clamp device 32 connects the carts by locking the locking pieces 32a to the handles 3 of adjacent carts using a link mechanism using an operating lever. Further, in the wind direction changing cart 31, a spacer 31a corresponding to the gap in the longitudinal direction between the parallel carts 30, 30 is erected at the center of the opening 31b.

Note that the guide means such as the guide 11 and the guide groove 23, and the clamp device 32 are not limited to those in each embodiment.
It can be used in any combination with various types of carts and connection modes.

As described above in detail, the thawing device according to the present invention does not require a building for forming a closed space such as a thawing warehouse, and is quick and easy to construct.

Further, a ventilation path for circulating air can be easily formed by simply connecting the carts, and various ventilation patterns can be set as appropriate.

Furthermore, depending on the number of carts, a ventilation pattern corresponding to the desired amount of thawing can be obtained, and uniform thawing can be performed effectively in a short time.

Moreover, it is easy to move, carry in, and take out the trolley, and it can be configured as appropriate by combining it with a guide or guide groove, or by using a connecting fitting between the trolleys, eliminating the need for a guide or guide groove. There is a large degree of freedom in design.

[Brief explanation of the drawing]

FIG. 1A is a partially cutaway perspective view of a thawing device according to an embodiment of the present invention, FIG. 1B is a circuit diagram showing a thawing method using the thawing device according to the present invention, and FIG.
3 is an explanatory diagram showing the wind direction pattern of circulating air according to the present invention; and FIG. 4 is a partially cutaway perspective view of a truck showing another embodiment of the present invention. , FIG. 5 is a perspective view of a thawing device showing another embodiment of the present invention, and FIG.
B is a perspective view showing an embodiment of the reversing section used in FIG. 5, FIG. 7 is a partially cutaway perspective view of the wind direction changing cart in FIG. FIG. 9 is an explanatory view showing the wind direction pattern, and is a perspective view of a thawing device showing an embodiment of the present invention in which the carts are connected together by a clamp device. 1... Trolley, 1 ₁ ~ 1 _o ... Shelf, 2... Partition plate, 3... Handle, 4... Wind direction reversal chamber, 5... Rectification chamber, 6... Freezer, 7... Perforated plate type Humidification tower, 8...
Fan motor, 9... Circulation fan, 10... Control panel, 13... Wind direction changing trolley.

Claims (1)

[Scope of Claims] 1. Consists of a thawing machine that alternately blows and sucks circulating air adjusted to a predetermined temperature and humidity from a pair of ventilation holes, and a group of carts connected to the thawing machine, The cart includes a plurality of defrosting carts with openings on opposing front and rear surfaces and an insulated structure around the periphery, and a wind direction changing cart with an insulating structure that opens only on one side. The carts are connected so that each opening communicates with each other, and a wind direction changing cart is connected to the opening on the end face of the cart, so that the circulating air is alternately circulated in forward and reverse directions between the pair of ventilation holes and the wind direction changing cart. A thawing device characterized by: 2. The thawing device according to claim 1, which comprises the above-mentioned truck which is divided into upper and lower halves and a wind direction changing truck. 3. The thawing device according to claim 1, which comprises the above-mentioned cart divided into four parts, vertically and horizontally, and a wind direction changing cart partitioned into left and right sides. 4. The thawing device according to claim 1, comprising the above-mentioned carts and a wind direction changing cart arranged in two rows. 5. A guide rail with an L-shaped stepped part located in the center and protruding inward on the floor surface on which a track is formed according to the width of the running wheels of the bogie, and a bearing that can be freely moved for running is installed at a position that abuts against the side wall of the guide rail. The thawing device according to claim 1, comprising the above-mentioned trolley. 6. The thawing device according to claim 1, comprising the truck and a floor surface on which a groove-like track is formed in accordance with the width of the running wheels of the truck. 7. The thawing device according to claim 1, comprising the above-mentioned trolley configured to perform a holding/detaching operation of the clamping device by means of an operating lever.