KR102540209B1 - cold storage system - Google Patents

Abstract

The present invention relates to a low-temperature storage system implemented to implement reliability, stability, long-term storage, and freshness maintenance of stored goods through uniform temperature distribution, and an enclosed internal space to prevent cold air from leaking to the outside. A storage chamber forming a; a cold air supply device installed at an upper end of one side of the storage chamber to supply cold air to an inner space of the storage chamber; and a temperature control device for controlling the temperature and amount of cold air supplied from the cold air supply device after measuring the temperature of the inner space of the storage chamber so that the inner space of the storage chamber can be maintained at a constant temperature.

Description

Cold storage system {cold storage system}

The present invention relates to a low-temperature storage system, and more particularly, to a low-temperature storage system implemented to implement reliability, stability, long-term storage, and freshness maintenance of stored goods through uniform temperature distribution.

Demand for distribution of fresh food is increasing in accordance with the improvement of consumer's dietary life and demand for various foods following economic development. Demand for cold storage is increasing.

The low-temperature storage is a facility that has the function of keeping agricultural and livestock products fresh for a long period of time by cooling the inside of the insulated space and maintaining it above the freezing point (0℃_). The refrigeration cycle consists of compression, condensation, expansion, and evaporation of In terms of application, the technical principle is the same as heating and cooling by air conditioning, freezers or large refrigerated warehouses, but there are differences in detailed devices, structures, and control methods depending on the characteristics of the target to be applied.

In a refrigeration warehouse or freezer, if the stored product is frozen and stored at a temperature below the freezing point, the quality of the stored product is rarely deteriorated. However, since various types of agricultural and marine products with different characteristics must be stored at a temperature higher than the freezing point in the cold storage, especially agricultural products, they must be kept fresh. If it is not managed precisely within the range, it causes low-temperature damage due to excessive cooling, deterioration due to respiratory physiology, and in some cases, a 10 to 30% weight loss rate occurs, which increases the distribution cost of fresh food.

On the other hand, the above-mentioned background art is technical information that the inventor possessed for derivation of the present invention or acquired in the process of derivation of the present invention, and cannot necessarily be said to be known art disclosed to the general public prior to filing the present invention. .

Korean Patent Registration No. 10-2171869 (Announced on October 29, 2020)

One aspect of the present invention provides a low-temperature storage system implemented to implement reliability, stability, long-term storage and freshness maintenance of goods to be stored through uniform temperature distribution.

The technical problem of the present invention is not limited to the technical problem mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art from the following description.

A low-temperature storage system according to an embodiment of the present invention includes a storage chamber forming a sealed inner space to prevent cold air from leaking out; a cold air supply device installed at an upper end of one side of the storage chamber to supply cold air to an inner space of the storage chamber; and a temperature control device for controlling the temperature and amount of cold air supplied from the cold air supply device after measuring the temperature of the inner space of the storage chamber so that the inner space of the storage chamber can be maintained at a constant temperature.

In one embodiment, the low-temperature storage system according to an embodiment of the present invention divides the internal space of the storage chamber into an upper space in which the cold air supply device is installed and a lower space in which articles are stored, and the inside of the storage chamber A perforated plate installed in the space and repeatedly formed with a plurality of perforated holes forming a plurality of rows at regular intervals so that the cold air supplied from the cold air supply device to the upper space can be moved downward to the lower space. can

In one embodiment, in the storage chamber, a return grill is installed on the lower side of one side wall on which the cold air supply device is installed to suck in cold air descending through the perforated plate and then move it up and down to the cold air supply device. A cool air ascending passage may be provided from the return grill to the cool air supply device.

In one embodiment, the low-temperature storage system according to another embodiment of the present invention is formed by bending in a ")" shape, but the upper end is inclined so that it can be disposed closer to the cold air supply device than the lower end Fixed to the upper side of the perforated plate The first descending guide vane is installed with a plurality of first bulkheads spaced apart in the left and right directions along the inward surface so that the cold air blowing from the cold air supply device can move downward along the inward surface instead of moving in the left and right directions. ; It is formed roundly bent in a ")" shape with a higher vertical height than the first descending guide vane, and is fixed to the upper side of the perforated plate at an angle so that the upper end can be approached to the cold air supply device than the lower end. 1 A plurality of second bulkheads are installed spaced apart in left and right directions along an inward surface so that cold air blowing from the cold air supply device beyond the descending guide vane does not move in a left and right direction and moves in a downward direction along an inward surface. descent guidance wing; And it is formed roundly bent in a ")" shape with a higher vertical height than the second descending guide vane, and the upper end is disposed closer to the cold air supply device than the lower end so that it can be installed on the upper side of the internal space of the storage chamber It is obliquely fixed to the upper side of the perforated plate, and the cold air blown from the cold air supply device beyond the second descending guide vane does not move in the left and right directions but moves downward along the inward surface. It may further include a third descending guide vane in which the third bulkhead is spaced apart from each other in the left and right directions.

In one embodiment, the low-temperature storage system according to another embodiment of the present invention is installed for each perforated hole of the perforated plate, and is driven to rotate to induce a downward movement of cold air through the perforated hole of the perforated plate; and a rotation driving unit for rotationally driving the lowering guide unit.

In one embodiment, the descending induction unit is formed in a cylindrical shape to form an outer diameter corresponding to the inner diameter of the perforated hole of the perforated plate and is seated in the perforated hole of the perforated plate; a plurality of spiral blades extending in a spiral direction along an inner circumferential surface of the rotating cylinder and forming a downward airflow along the inner space of the rotating cylinder as the rotating cylinder rotates; A cone-shaped cylinder formed in a cylindrical shape communicating in a vertical direction and installed on the upper side of the rotating cylinder, and formed in a cone shape with an upper end diameter larger than a lower end diameter made of the diameter of the rotating cylinder; and a ring-shaped gear installed along an upper outer circumferential surface of the rotating cylinder, seated in a gear seating groove formed along an inner circumferential surface of a perforated hole of the perforated plate, and forming a gear mountain along the outer side.

In one embodiment, the rotation drive unit, a first drive gear installed to enable rotational drive outside of the outermost perforated hole of the plurality of perforated holes of the perforated plate arranged in a row; A second driving gear installed to enable rotational driving outside the perforation hole disposed on the outermost outermost side of the plurality of perforated holes of the perforated plate arranged in a row, on the opposite side where the first driving gear is not installed; And one side inward surface is engaged with the first driving gear and installed, and the other side inward surface is engaged with and connected to the second driving gear, and each front end and each rear end of the plurality of perforated holes of the perforated plate arranged in a row are sequentially installed. It is disposed along a belt seating space formed in communication along the inner side of the perforated plate while passing through, and the ring-shaped gear is engaged and connected to a gear mountain formed along an inward surface by gear coupling, so that the first driving gear and the second driving gear are connected. It may include; a driving belt which is rotationally driven by a driving gear to rotate and drive the ring-shaped gear.

In one embodiment, the rotational drive unit is installed at the front and rear ends of the perforated holes of the perforated plate, respectively, and attaches the drive belt disposed at the front and rear ends of the perforated holes of the perforated plate to the ring-shaped gear. Belt adhesion part; may further include.

In one embodiment, the belt contact portion, the block seating groove formed at the front and rear ends of the perforated hole of the perforated plate; Close contact block to be seated in the block seating groove; Close contact spheres spaced apart at regular intervals along the front surface of the close contact block that is in close contact with the drive belt, connected to each other so as to be rotatable, and seated on the outer surface of the drive belt; and block support springs spaced apart from each other at regular intervals along the inner side of the block seating groove to support the inner side of the contact block seated in the block seating groove so as to bring the contact block into close contact with the drive belt. can do.

In one embodiment, the adhesion block has the shape of the outer circumferential surface of the ring-shaped gear on the front surface in close contact with the drive belt so that the drive belt in close contact with the ring-shaped gear can be brought into close contact with the outer circumferential surface of the ring-shaped gear. Corresponding to the arc-shaped belt seating groove may be formed.

According to one aspect of the present invention described above, it is possible to implement reliability, stability, long-term storage and freshness maintenance of goods to be stored through uniform temperature distribution.

Effects of the present invention are not limited to the effects mentioned above, and various effects may be included within a range apparent to those skilled in the art from the contents to be described below.

1 is a diagram showing a schematic configuration of a low temperature storage system according to an embodiment of the present invention.
2 and 3 are diagrams showing a schematic configuration of a low temperature storage system according to another embodiment of the present invention.
4 and 5 are diagrams showing a schematic configuration of a low temperature storage system according to another embodiment of the present invention.
6 is a view showing a descending guide unit according to the present invention.
7 is a view showing a rotary drive unit according to the present invention.
8 is a view showing a belt adhesion part according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The detailed description of the present invention which follows refers to the accompanying drawings which illustrate, by way of illustration, specific embodiments in which the present invention may be practiced. These embodiments are described in sufficient detail to enable one skilled in the art to practice the present invention. It should be understood that the various embodiments of the present invention are different from each other but are not necessarily mutually exclusive. For example, specific shapes, structures, and characteristics described herein may be implemented in another embodiment without departing from the spirit and scope of the invention in connection with one embodiment. Additionally, it should be understood that the location or arrangement of individual components within each disclosed embodiment may be changed without departing from the spirit and scope of the invention. Accordingly, the detailed description set forth below is not to be taken in a limiting sense, and the scope of the present invention, if properly described, is limited only by the appended claims, along with all equivalents as claimed by those claims. Like reference numbers in the drawings indicate the same or similar function throughout the various aspects.

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

1 is a diagram showing a schematic configuration of a low temperature storage system according to an embodiment of the present invention.

Referring to FIG. 1 , a low temperature storage system 10 according to an embodiment of the present invention includes a storage chamber 100 , a cold air supply device 200 and a temperature control device 300 .

The storage chamber 100 forms a sealed inner space to prevent cold air from leaking out.

The cold air supply device 200 is installed at an upper end of one side of the storage chamber 100 to supply cold air to the inner space of the storage chamber 100 .

The temperature controller 300 measures the temperature of the internal space of the storage chamber 100 so that the internal space of the storage chamber 100 can be maintained at a constant temperature (eg, 4°C_ to 10°C_, etc.) After that, the temperature and amount of cold air supplied from the cold air supply device 200 are controlled.

The low-temperature storage system 10 according to an embodiment of the present invention having the configuration described above can implement reliability, stability, long-term storage, and freshness maintenance of stored goods through uniform temperature distribution.

2 and 3 are diagrams showing a schematic configuration of a low temperature storage system according to another embodiment of the present invention.

2 and 3, the low temperature storage system 20 according to another embodiment of the present invention includes a storage chamber 100, a cold air supply device 200, a temperature controller 300 and a perforated plate 400. includes

Here, since the storage chamber 100, the cold air supply device 200, and the temperature control device 300 are the same as the components of FIG. 1, their descriptions will be omitted to avoid overlapping descriptions.

The perforated plate 400 divides the internal space of the storage chamber 100 into an upper space S1 in which the cold air supply device 200 is installed and a lower space S2 for storing articles, and It is installed in the inner space, and the plurality of perforated holes 410 form a plurality of rows at regular intervals so that the cold air supplied from the cold air supply device 200 to the upper space S1 can be moved downward to the lower space S2. formed repeatedly.

In one embodiment, the storage chamber 100 sucks cold air descending through the perforated plate 400 on the lower side of one side wall on which the cold air supply device 200 is installed, and then moves it up and down to the cold air supply device 200. A return grill 110 may be installed, and a cold air rising passage 120 may be provided from the return grill 110 to the cold air supply device 200 .

The low temperature storage system 20 according to another embodiment of the present invention having the configuration described above can shorten the reach of cold air and reduce energy loss.

4 and 5 are diagrams showing a schematic configuration of a low temperature storage system according to another embodiment of the present invention.

4 and 5, a low temperature storage system 30 according to another embodiment of the present invention includes a storage chamber 100, a cold air supply device 200, a temperature control device 300, and a perforated plate 400. ), the first descent guidance vane 500, the second descent guidance vane 600 and the third descent guidance vane 700.

Here, since the storage chamber 100, the cold air supply device 200, the temperature controller 300, and the perforated plate 400 are the same as the components of FIGS. 1 and 2, descriptions thereof are omitted to avoid duplication of description. to omit

The first descending guide vane 500 is formed roundly and bent in a “)” shape, and is fixedly installed on the upper side of the perforated plate 400 at an angle so that the upper end can be approached to the cold air supply device 200 than the lower end, and the cold air A plurality of first partition walls 510 are spaced apart in left and right directions along the inward surface so that cool air blowing from the supply device 200 does not move in the left and right directions but moves downward along the inward surface.

The second descending guide vane 600 is formed with a higher vertical height than the first descending guide vane 500 and is bent in a ")" shape, and the upper end is closer to the cold air supply device 200 than the lower end. It is fixed and installed on the upper side of the perforated plate 400 at an angle so that the cold air blowing from the cold air supply device 200 beyond the first descending guide vane 500 can move downward along the inward surface without moving in the left and right directions. A plurality of second partition walls 610 are spaced apart from each other in the left-right direction along the inward surface so as to be installed.

The third descending guide vane 700 is formed with a higher vertical height than the second descending guide vane 600 and is bent in a ")" shape, but the upper end is closer to the cold air supply device 200 than the lower end and stored It is fixedly installed on the upper side of the perforated plate 400 at an angle so that it can be installed on the upper side of the inner space of the chamber 100, and the cold air blowing from the cold air supply device 200 over the second descending guide vane 600 is left and right. A plurality of third bulkheads 710 are spaced apart in left and right directions along the inward surface so as to move downward along the inward surface without moving in the opposite direction.

The low temperature storage system 20 according to another embodiment of the present invention having the configuration described above may further include a lowering induction unit 800 and a rotation driving unit 900 .

The descending induction unit 800 is installed in each perforated hole 410 of the perforated plate 400, and is rotationally driven by the rotation drive unit 900 to move the cold air downward through the perforated hole 410 of the perforated plate 400. induce

The rotation drive unit 900 rotationally drives the descent guidance unit 800 .

The low temperature storage system 30 according to another embodiment of the present invention having the configuration as described above,

The cold air supplied from the cold air supply device 200 is uniformly guided to the perforated plate 400, and the speed of the cold air descending through the perforated holes 410 of the perforated plate 400 is improved to improve circulation of the cold air. By making it happen more quickly, the reach of cold air can be shortened and energy loss can be reduced.

6 is a view showing a descending guide unit according to the present invention.

Referring to FIG. 6 , the descent induction unit 800 includes a rotating cylinder 810, a plurality of spiral blades 820, a cone-shaped cylinder 830, and a ring gear 840.

The rotating cylinder 810 is formed in a cylindrical shape forming an outer diameter corresponding to the inner diameter of the perforated hole 410 of the perforated plate 400 and is seated in the perforated hole 410 of the perforated plate 400, and has a plurality of spirals. Components such as wing 820, cone-shaped cylinder 830 and ring-shaped gear 840 are installed.

The plurality of spiral blades 820 are formed extending in a spiral direction along the inner circumferential surface of the rotating cylinder 810, and as the rotating cylinder 810 rotates, a downward airflow is formed along the inner space of the rotating cylinder 810. .

The cone-shaped cylinder 830 is formed in a cylindrical shape communicating in the vertical direction and is installed on the upper side of the rotating cylinder 810, and is formed in a cone shape with an upper end diameter larger than a lower end diameter made of the diameter of the rotating cylinder 810. As a result, a larger amount of cold air is rapidly moved to the rotating cylinder 810 .

The ring-shaped gear 840 is installed along the upper outer circumferential surface of the rotating cylinder 810 and is seated in the gear seating groove 411 formed along the inner circumferential surface of the perforated hole 410 of the perforated plate 400, drive belt 930 ) Forms a gear mountain along the outer side so that it can be engaged and connected to the gear mountain formed along the inward side of the gear by gear coupling.

7 is a view showing a rotary drive unit according to the present invention.

Referring to FIG. 7 , the rotary driving unit 900 includes a first driving gear 910 , a second driving gear 920 and a driving belt 930 .

The first drive gear 910 is a driving device such as a step motor (for convenience of description) outside the perforation hole 410 disposed at the outermost part of the plurality of perforation holes 410 of the perforated plate 400 arranged in a row. (not shown in the drawing) is installed to enable rotational driving.

The second drive gear 920 is a perforated hole 410 disposed on the outermost side opposite to where the first drive gear 910 is not installed among the plurality of perforated holes 410 of the perforated plate 400 arranged in a row. It is installed to enable rotational drive by a driving device (not shown in the drawing for convenience of description) such as a step motor from the outside of the.

The drive belt 930 has one side inward surface meshed with and connected to the first drive gear 910, and the other side inward surface meshed with and connected to the second drive gear 920. Perforated plate 400 arranged in a row It is disposed along the belt seating space (L) formed in communication along the inside of the perforated plate 400 while passing through each front end and each rear end of the plurality of perforated holes 410 in turn, to the gear mountain formed along the inward surface. The ring-shaped gear 840 is engaged and connected by gear coupling, and is rotationally driven by the first driving gear 910 and the second driving gear 920 to rotate and drive the ring-shaped gear 840 .

The rotary driving unit 900 having the configuration described above may further include a belt contact unit 940 .

The belt contact part 940 is installed at the front and rear ends of the perforated hole 410 of the perforated plate 400, respectively, and the drive belt 930 disposed at the front and rear ends of the perforated hole 410 of the perforated plate 400 Adheres to the ring-shaped gear 840.

8 is a view showing a belt adhesion part according to the present invention.

Referring to FIG. 8 , the belt close portion 940 includes a block seating groove 941 , a close close block 942 , a close close sphere 943 and a block support spring 944 .

The block seating groove 941 is formed at the front and rear ends of the perforated hole 410 of the perforated plate 400 so that the close contact block 942 can be seated thereon.

The close contact block 942 is supported by the block support spring 944 and seated in the block seating groove 941 .

The contact spheres 943 are spaced apart at regular intervals along the front surface of the contact block 942 that is in close contact with the drive belt 930, and a plurality of contact spheres 943 are rotatably connected and seated on the outer surface of the drive belt 930.

The block support spring 944 is spaced apart at regular intervals along the inside of the block seating groove 941, and a plurality of them are installed to support the inside of the close contact block 942 seated in the block seating groove 941 to support the close contact block 942. ) is brought into close contact with the drive belt 930.

In one embodiment, the close contact block 942 is the front surface in close contact with the drive belt 930 so that the drive belt 930 in close contact with the ring gear 840 is in close contact along the outer circumferential surface of the ring gear 840. An arch-shaped belt seating groove 942a corresponding to the shape of the outer circumferential surface of the ring-shaped gear 840 may be formed there.

The above-described embodiments are for illustrative purposes, and those skilled in the art to which the above-described embodiments belong can easily transform into other specific forms without changing the technical spirit or essential features of the above-described embodiments. You will understand. Therefore, it should be understood that the above-described embodiments are illustrative in all respects and not restrictive. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as distributed may be implemented in a combined form.

The scope to be protected through this specification is indicated by the following claims rather than the detailed description above, and should be construed to include all changes or modifications derived from the meaning and scope of the claims and equivalent concepts thereof. .

10, 20, 30: cold storage system
100: storage chamber
200: cold air supply
300: thermostat
400: perforated plate
500: first descent guide wing
600: second descent guide wing
700: third descent guide wing
800: descent induction unit
900: rotation drive

Claims (3)

A storage chamber forming a sealed inner space to prevent cold air from leaking out;
a cold air supply device installed at an upper end of one side of the storage chamber to supply cold air to an inner space of the storage chamber; and
A temperature control device for controlling the temperature and supply amount of the cold air supplied from the cold air supply device after measuring the temperature of the inner space of the storage chamber so that the inner space of the storage chamber can be maintained at a constant temperature;
The internal space of the storage chamber is partitioned into an upper space in which the cold air supply device is installed and a lower space in which articles are stored, and the cold air supplied to the upper space from the cold air supply device is installed in the internal space of the storage chamber. A perforated plate in which a plurality of perforated holes are formed repeatedly while forming a plurality of rows at regular intervals so as to be moved downward to the lower space; further includes,
The storage chamber,
A return grill is installed on the lower side of the wall on one side where the cold air supply device is installed to suck in cold air that has descended through the perforated plate and then move it up and down to the cold air supply device, and cool air rises from the return grill to the cold air supply device. providing a passage;
It is bent and formed in a ")" shape, but the upper end is fixed to the upper side of the perforated plate at an angle so that it can be disposed closer to the cold air supply device than the lower end, and the cold air blowing from the cold air supply device does not move in the left and right directions. First descending guide vanes installed with a plurality of first bulkheads spaced apart in the left and right directions along the inward surface so as to move downward along the inward surface;
It is formed roundly bent in a ")" shape with a higher vertical height than the first descending guide vane, and is fixed to the upper side of the perforated plate at an angle so that the upper end can be approached to the cold air supply device than the lower end. 1 A plurality of second bulkheads are installed spaced apart in left and right directions along an inward surface so that cold air blowing from the cold air supply device beyond the descending guide vane does not move in a left and right direction and moves in a downward direction along an inward surface. descent guidance wing; and
It is formed roundly bent in a ")" shape with a higher vertical height than the second descending guide vane, and the upper end is disposed closer to the cold air supply device than the lower end, and is inclined so that it can be installed on the upper side of the internal space of the storage chamber It is fixedly installed on the upper side of the perforated plate, and a plurality of deflectors are provided along the inward surface so that the cold air blowing from the cold air supply device beyond the second descending guide vane moves downward along the inward surface without moving in the left and right directions. It further includes; a third descending guide wing in which 3 bulkheads are installed apart from each other in the left and right directions;
a descending induction unit installed in each perforated hole of the perforated plate and driven to rotate to induce a downward movement of cold air through the perforated hole of the perforated plate; and
It further includes; a rotation driving unit for rotationally driving the lowering guide unit;
The descending induction unit,
a rotating cylinder formed in a cylindrical shape having an outer diameter corresponding to an inner diameter of the perforated hole of the perforated plate and seated in the perforated hole of the perforated plate;
a plurality of spiral blades extending in a spiral direction along an inner circumferential surface of the rotating cylinder and forming a downward airflow along the inner space of the rotating cylinder as the rotating cylinder rotates;
A cone-shaped cylinder formed in a cylindrical shape communicating in a vertical direction and installed on the upper side of the rotating cylinder, and formed in a cone shape with an upper end diameter larger than a lower end diameter made of the diameter of the rotating cylinder; and
A ring-shaped gear installed along the upper outer circumferential surface of the rotating cylinder, seated in a gear seating groove formed along the inner circumferential surface of the perforated hole of the perforated plate, and forming a gear mountain along the outer side,
The rotary drive unit,
A first driving gear installed to enable rotational driving outside of the outermost perforated hole among the plurality of perforated holes of the perforated plate arranged in a row;
A second driving gear installed to enable rotational driving outside the perforated hole disposed on the outermost outermost side of the plurality of perforated holes of the perforated plate arranged in a row, on the opposite side where the first driving gear is not installed; and
One inward surface is engaged and connected to the first drive gear, and the other inward surface is engaged and connected to the second drive gear, passing through each front end and each rear end of a plurality of perforated holes of the perforated plate arranged in a row in order. It is disposed along a belt seating space formed in communication along the inner side of the perforated plate, and the ring-shaped gear is engaged and connected to a gear mountain formed along an inward surface by gear coupling, so that the first drive gear and the second drive A low-temperature storage system including a drive belt driven by a gear to rotate and drive the ring-shaped gear.
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