JP2501484Y2 - Constant temperature storage - Google Patents

Description

[Detailed description of the invention]

[0001]

[Industrial application] This invention is to store fresh foods such as vegetables and fresh fish stored in this storage space in a fresh state for a long period of time while maintaining the storage space at a constant low temperature. Regarding the constant temperature storage.

[0002]

2. Description of the Related Art As a constant temperature storage for keeping a storage space at a constant low temperature and storing stored products such as fresh foods stored in the storage space in a fresh state for a long time, its use and purpose. There is a refrigerator, a freezer, a defroster, etc. according to the above, but in any of the storages, the refrigerator is attached to the storage body made of a heat insulating material, and the cold air blowout port and the warm air suction port of this refrigerator are formed. The cold air is supplied from the cold air outlet to the storage space in the storage main body, and the warm air in the storage space is sucked through the warm air suction port to maintain the storage space at a constant low temperature. And in this type of storage, a cold air outlet of the refrigerator is opened in the upper part of the storage main body, and a warm air intake port of the refrigerator is opened in the lower part of the storage main body, inside the storage space in the storage main body. A flow of cold air from the cold air outlet to the warm air inlet is formed, thereby maintaining the fresh food or the like stored in the storage space at a constant low temperature. However, the flow of cold air ejected from the cold air outlet into the storage space hits the stored products such as fresh food stored in the storage space, where heat exchange is performed to cool the stored products, and then warm air is stored. Then, the warm air suction port returns to the refrigerator, but the upstream side of the cold air flow in the stored product, that is, the side directly hit by the cool air is excessively cooled, while the downstream side of the cold air flow,
That is, in some cases, the side that is not directly exposed to the cold air may be insufficiently cooled, and there is a problem that the stored product is partially dried or is damaged by the cold.

[0003]

[Problems to be solved by the present invention] The present invention has been made in view of such a viewpoint.
The aim is to keep the flow of cold air in the storage space as close to natural convection as possible, thereby providing a constant temperature storage in which the stored goods are not partially dried or chilled.

[0004]

According to the present invention, a refrigerator is attached to a storage body made of a heat insulating material, and a cold air outlet and a warm air suction port of the refrigerator are formed, and a cool air outlet is provided inside the storage body. In a constant-temperature storage that supplies cold air to the storage space and sucks warm air in the storage space through a warm air inlet to maintain the storage space at a constant low temperature, either the ceiling wall of the storage body or one of the front, rear, left, and right side walls. A partition wall formed of a woven or knitted fabric of a fibrous material is arranged in the part or the whole while maintaining a predetermined gap on the inner surface side, and the gap formed by the partition wall and the cool air outlet of the refrigerator are It is a constant-temperature storage that connects the spaces and supplies cold air from the refrigerator into the storage space from the entire surface of the partition wall.

In the present invention, the ceiling wall of the storage main body and the partition walls provided on the inner surface sides of the front, rear, left and right side walls may be provided only on the inner surface side of the ceiling wall. It may be arranged on the inner surface side of one of the side walls, or may be arranged on the inner surface side of the ceiling wall and the left and right side walls, and further, the opening such as the door portion and the warm air intake port formed on the front side wall. Although it may be disposed on the entire inner surface side of the ceiling wall and each of the front, rear, left, and right side walls excluding the portion, it is preferable that the ceiling wall is almost entirely formed on the inner surface side of the ceiling wall because of manufacturing problems and cost problems. It is preferable to dispose so as to cover almost the entire inner surface of one of the left and right side walls. At this time, it is preferable that this partition wall through which cold air passes is formed along almost the entire surface of the ceiling wall so that the cool air is supplied into the storage space from substantially the entire upper surface thereof. Is formed along the ceiling wall and one of the left and right side walls, and a ventilation opening communicating with the warm air intake port of the refrigerator is formed in the lower part of the other left or right side wall, increasing the ventilation area and providing almost natural convection. It is better to create a similar situation. By designing in this way,
The cold air is evenly distributed throughout the storage space without causing unnatural convection or partial flow of cold air.

The woven and knitted fabrics forming the partition wall are, for example, nylon, polyester, polypropylene,
It is made of synthetic fiber such as acrylic and its opening is 0.1
˜400 μm, preferably about 100 μm. Also, the wind speed when cold air passes through this partition wall is
If the amount of air blown per unit time of the refrigerator is constant, it depends on the size of the openings of the woven and knitted fabric and the ventilation area thereof, but is usually 1 m / sec or less, preferably 0.01 to 0.1 m / sec. It is preferable to design the size of the openings of the woven or knitted fabric and the ventilation area based on this. When the wind speed of the cool air passing through the partition wall becomes faster than 1 m / sec, there may occur a problem of partial drying or cold damage of the stored product, although it depends on the storage period.

The partition wall is formed into a partition wall member by laminating a woven or knitted fabric on a frame of a predetermined size, such as a screen door, and the partition wall member is formed on the ceiling wall of the storage main body and the front, rear, left and right sides. It is advisable to attach it detachably to the inner surface of the side wall. By detachably attaching the partition wall in this way, it is easy to clean when it becomes clogged, and if it is partially torn, only that part needs to be repaired, which facilitates maintenance of the partition wall. Become.

[0008]

According to the constant temperature storage of the present invention, a partition wall made of a woven or knitted fabric of a relatively large area is provided between the cold air outlet of the refrigerator and the storage space of the storage main body.
Since the cold air from the refrigerator is supplied to the storage space through this partition wall, the wind speed becomes significantly slower in comparison with the amount of cold air sent into the storage space, which causes the storage space to naturally flow. Cold air and warm air are exchanged with each other in a state close to convection, and stored products such as fresh food stored in this storage space can be stored for a long period of time without being partially dried or damaged by cold.

[0009]

EXAMPLES The present invention will be described in detail below based on examples.

FIG. 1 shows a constant temperature storage S according to an embodiment of the present invention.
₁ is shown. In the constant temperature storage S ₁ , the storage main body 1 is made of a heat insulating material such as hard urethane foam and has a ceiling wall 2, a bottom wall 3 and a door 4 to which a refrigerator 9 is attached.
Is provided with a front side wall 5, a rear side wall 6, a left side wall 7 and a right side wall 8, and a partition wall 10 extending over substantially the entire inner surface of the storage main body 1 is provided. The partition wall 11 is disposed while maintaining the gap d, and a partition wall 11 is disposed on the inner surface side of the right side wall 8 between the right side wall 8 and the right side wall 8 to form a warm air passage 12 and a lower end thereof. A ventilation opening 13 is formed in the.

In this embodiment, the partition wall 10
As shown in FIGS. 2 and 3, the polypropylene woven and knitted fabric 10a is cut into a rectangular shape, the frames 10b are attached to the four sides thereof, and the reinforcing frame 10c is attached at predetermined intervals, Also, FIG.
As shown in FIG. 5, the L-shaped metal fittings 14a and 14b are attached between the front side wall 5 and the rear side wall 6, and the L-shaped metal fitting 14b can be easily attached and detached. Reference numeral 15 in the figure denotes an auxiliary partition plate provided for adjusting the size of the partition wall 10 attached to the inner surface side of the ceiling wall 2 and thereby adjusting the wind speed passing through the partition wall 10. is there.

Therefore, according to this embodiment, the cold air X blown out from the cold air outlet 16 of the refrigerator 9 first enters the gap d between the ceiling wall 2 and the partition wall 10 and then the partition wall 10. It passes through the woven / knitted fabric 10a and enters the storage space from the entire surface thereof, and is heated by exchanging heat with a storage product (not shown) stored in the storage space to become warm air Y from the ventilation opening 13 at the lower end of the partition wall 11. It enters the warm air suction port 17 of the refrigerator 9 through the warm air passage 12 and is cooled again by the refrigerator 9. At this time, the cold air X blown out from the cold air outlet 16 of the refrigerator 9.
Is equalized in the entire gap d, and the partition wall 1 is at the same wind speed.
Since it passes through the woven and knitted fabric 10a of 0, this wind speed becomes small in inverse proportion to the size of the partition wall 10 if the air volume is constant, and as a result, it is extremely more extreme than in the case of the conventional constant temperature storage of this kind. Become slow. Therefore, the cold air X that has passed through the partition wall 10 and entered the storage space slowly descends in this storage space as if it were natural convection, cools the stored products, and then sucks warm air into the refrigerator 9. Return to mouth 17.

Further, according to this embodiment, the partition wall 10
Is detachably attached between the front side wall 5 and the rear side wall 6 via a pair of L-shaped metal fittings 14, so that the partition wall 10 is removed and washed with water, for example, about once every 6 months. It is possible to easily perform maintenance such as removing clogging that has occurred in 10 woven or knitted fabrics 10a.

5 and 6 are sectional perspective views similar to FIG. 1 showing constant temperature storages S ₂ and S _{3 according} to another embodiment of the present invention. In the case of FIG. 5, there is no partition wall 11. , Warm air Y that has risen almost due to natural convection and moved to the upper part of the storage space
Is directly sucked from the warm air suction port 17 of the refrigerator 9 which is opened at the upper right end, and in the case of FIG.
The partition wall 10 is formed along the ceiling wall 2 and the left side wall 7, and the ventilation opening 13 communicating with the warm air intake port 17 of the refrigerator 9 is formed in the lower part of the right side wall 8. Also in these examples, the wind speed of the cool air X passing through the woven / knitted fabric 10a of the partition wall 10 and entering the storage space is slow, and circulates in this storage space as if natural convection, and cools the stored goods. To do.

[0015]

As described above, according to the constant temperature storage of the present invention, the wind speed of the cool air supplied to the storage space can be kept extremely constant and the wind speed can be extremely slowed down. It is possible to switch between cold air and warm air in the storage space in a state close to, and to store these products without causing partial drying or cold damage to the stored products such as fresh foods stored in this storage space. Can be stored for a long period of time.

[Brief description of drawings]

FIG. 1 is a cross-sectional perspective explanatory view of a constant temperature storage according to an embodiment of the present invention.

FIG. 2 is a plan view of the partition wall used in FIG.

FIG. 3 is an exploded view of the partition wall of FIG.

FIG. 4 is a partial perspective explanatory view showing an attached state of the partition wall in FIG.

FIG. 5 is a sectional perspective view of a constant temperature storage according to another embodiment of the present invention.

FIG. 6 is a cross-sectional perspective view showing a constant temperature storage according to another embodiment of the present invention.

[Explanation of symbols]

S ₁ , S ₂ , S ₃ ... Constant temperature storage, X ... Cold air, Y ... Warm air,
d ... gap, 1 ... storage body, 2 ... ceiling wall, 3 ... bottom wall, 4
... door, 5 ... front side wall, 6 ... rear side wall, 7 ... left side wall, 8 ... right side wall, 9 ... refrigerator, 10 ... partition wall, 10a ... woven / knitted fabric, 1
Reference numeral 0b ... Frame, 10c ... Reinforcing frame, 11 ... Partition wall, 12 ... Warm air passage, 13 ... Vent opening, 14 ... L-shaped metal fitting, 15 ... Auxiliary partition plate, 16 ... Cold air outlet, 17 ... Warm air inlet.

Claims (4)

(57) [Scope of utility model registration request] 1. A refrigerator is attached to a storage body formed of a heat insulating material, and a cold air outlet and a warm air suction port of the refrigerator are formed to supply cold air from a cold air outlet to a storage space in the storage body. In a constant temperature storage that sucks warm air in the storage space from the warm air inlet to maintain the storage space at a constant low temperature, the ceiling wall of the storage main body and any one or all of the front, rear, left, and right side walls of the storage space A partition wall formed of a woven or knitted fabric of a fibrous material is disposed while maintaining a predetermined gap, and the gap formed by the partition wall and the cold air blowout port of the refrigerator are connected for communication, and the refrigerator is A constant-temperature storage characterized by supplying cold air from the inside of the storage space from the entire surface of the partition wall. 2. The constant temperature storage according to claim 1, wherein a partition wall made of a woven or knitted fabric of fiber material is formed along the ceiling wall, and cool air is supplied into the storage space from substantially the entire upper surface thereof. 3. A partition wall formed of a woven or knitted fabric of fiber material is formed along a ceiling wall and one of left and right side walls,
The constant temperature storage according to claim 1, wherein a ventilation opening communicating with a warm air suction port of the refrigerator is formed in a lower portion of the other side wall on either side. 4. The constant temperature storage according to claim 1, wherein the partition wall is detachably attached.