KR101966520B1 - A plasma quick refrigerator - Google Patents

Abstract

The present invention relates to a plasma freezer, and it is provided with a shield plate on one side of a housing to make a structure spaced by 1 mm from one side of a blower fan, By passing only 5% to 5% and re-feeding 95% to 97% into the upper passageway, the remaining 60% of the cold air passing through the evaporator joins the re-feed cold air and acts as jacket pressure across the space of the upper passageway and housing And the ice crystals generated in the evaporator are eliminated by the jacket pressure, thereby remarkably improving the heat exchange efficiency.
In order to accomplish this, the present invention is characterized by comprising: a main body (4) provided with a door (6) hingedly openable and closable; A refrigerator (12) connected to the outside while fixing an evaporator (20) to the inside of the main body (4); A diaphragm 22 installed on the front surface of the evaporator 20; A drawer 32 and a tray 34 installed on the front side of the diaphragm 22 for forward and backward movement; And a motor 38 coupled to a blowing fan 40 installed at an upper end of the main body 4. A housing 42 is installed at an upper end of the main body 4, And an air inlet 46 is formed in the housing 42 so that cool air can be moved to the upper passage 26. A blocking plate 56 is installed on one side of the housing 42, Is partially blocked from being recirculated.

Description

[0001] The present invention relates to a plasma quick refrigerator,

More particularly, the present invention relates to a plasma rapid freezer, more particularly, to a structure in which a shutoff plate is installed on one side of a housing and is spaced apart by 1 mm from one side of a blowing fan. When cool air circulated by a blowing fan collides against an evaporator 60% cold air remaining in the remainder, excluding 40% of the circulating cold air passing through the evaporator, is re-supplied by passing only 3% to 5% between the gap between the blowing fan and the shutoff plate and 95% to 97% The heat exchanging efficiency of the evaporator is improved by eliminating the ice crystals generated in the evaporator by the high-pressure circulating cold air moving at the jacket pressure while allowing it to act as jacket pressure over the space of the upper passageway and the housing while joining with the cold air It relates to a plasma rapid freezer.

Generally, plasma is obtained by centrifuging red blood cells, platelets, white blood cells, etc. from blood collected, and is usually stored at -50 ° C for rapid freezing. To prevent such plasma from deteriorating, And the heat exchange efficiency of the evaporator must be excellent.

Therefore, in recent years, there has been a tendency to improve the heat exchange efficiency of the evaporator while improving the installation structure of the fan so that the cold air of -50 DEG C can circulate uniformly throughout the refrigerator.

On the other hand, according to the conventional art, KR 10-1350493 B1 2014.1.6. First, the freezing housing 157 is fixed to the inner ceiling of the freezing body 110 constituting the plasma rapid freezer 100, and the inlet 157a and the outlet 157b are connected to the freezing housing 157, And a blowing fan 158 and an evaporator 159 are installed at the suction port 157a and the middle portion of the freezing housing 157. The evaporator 159 is provided with a freezing device 150 are connected to each other and installed outside the freezing body 110.

When the plasma pack is inserted into the accommodating space 113 of the refrigerator main body 110 configured as described above and then the refrigerating device 150 and the air blowing fan 158 are operated, (158) and flows into the freezing housing (157) through the inlet (157a) in the accommodation space (113).

After that, the air passes through the evaporator 159, is cooled, and exits from the freezing housing 157 through the discharge port 157b in the form of a cool air, and then the cool air is moved to the accommodation space 113.

When the moving cold air is circulated repeatedly in the order of the receiving space 113 and the evaporator 159 by the blowing fan 156, the cold air is rapidly cooled to the set temperature of -50 ° C., And freeze the plasma pack.

At this time, the internal pressure of the freezing housing 157 is equal to the internal pressure of the accommodation space 113. When the cool air is circulated by the blowing fan 158 in this state, the narrow gap of the heat exchange fins constituting the evaporator 159 There is a difficulty in passing through.

Therefore, ice crystals due to the condensation phenomenon are generated between the heat exchange fins of the evaporator 159, and these ice crystals block the circulation passage of the cold air, thereby lowering the heat exchange efficiency of the evaporator 159.

As a result, the cold air passing through the evaporator 159 can not maintain the set temperature of -50 ° C, and the plasma pack stored in the accommodating space 113 is frozen at -50 ° C or lower, and is deteriorated.

Korean Registered Patent No. 10-1350493 (Published April 2014, 2014)

Disclosure of the Invention The present invention has been made in order to solve the above problems of the prior art, and an object of the present invention is to provide a structure in which a blocking plate is installed on one side of a housing to have a structure spaced by 1 mm from one side of a blowing fan, If the cold air strikes the evaporator, it will flow through the gap between the ventilation fan and the ventilation fan only by 3% to 5%, and 95% to 97% by the upper passageway, Of 60% of the cold air cooperates with the re-supply cold air to act as a jacket pressure over the space of the upper passageway and the housing, and the ice crystals generated in the evaporator are removed by the high pressure circulating cold air moving at such jacket pressure, And to improve the efficiency dramatically.

The present invention firstly includes: a main body 4 having a storage space 24 formed therein with the front surface thereof being opened and a door 6 with a control unit 10 mounted thereon, hingedly;

A refrigerating device 12 connected to the control unit 10 and connected to the outside while fixing the evaporator 20 to the inner rear wall of the main body 4;

A diaphragm 22 vertically installed on the front surface of the evaporator 20 and separating upper and lower passages 26 and 28 from the upper and lower portions of the evaporator 20;

A drawer 32 and a tray 34 coupled to a rail 30 horizontally installed on the front side of the diaphragm 22 and forward and backward together;

And a motor (38) connected to the control unit (10) and disposed at an upper portion of the storage space (24) and a blowing fan (40) installed at an upper end of the main body (4)

A housing 42 is fixedly installed at an upper end portion of the main body 4 and a blowing fan 40 is disposed inside the housing 4 and an opening 54 is formed at the other side of the housing 42, And the bottom plate 44 of the housing 42 is formed with an inlet hole 46 so that the cool air in the storage space 24 can be moved to the upper passage 26 by the blowing fan 40 A blocking plate 56 is provided at one side of the housing 42 to partially block the cold air that has flowed back to the upper passage 26 by the blowing fan 40 to flow back and recirculate.

Secondly, the notch blade 58 is formed at the tip of the blocking plate 56 so that the cold air that has flowed back from the upper passage 26 strikes the front end portion, and the notch blade 58 is returned to one side So that a gap formed between the air blowing fan (40) and the air blowing fan (40) is kept open.

Thirdly, the shutoff plate 56 passes only a part of the cool air that has flowed back to the housing 42 in a state where the circulating cold air moving by the blowing fan 40 passes only 40% through the evaporator 20 The remaining backflow chilled air is caused to remain over the housing 42 and the upper passage 26 so that a jacket pressure having an internal pressure larger than the receiving space 24 is created in the space from the housing 42 to the upper passage 26 .

The present invention has a structure in which the blocking plate 56 is provided on one side of the housing 42 and is spaced apart from the one side of the blowing fan 40 by a distance of 1 mm so that the cold air circulated by the blowing fan 40 is discharged to the evaporator 20, it flows through only 3% to 5% between the gap with the blowing fan 40 by the blocking plate 56 and 95% to 97% is blocked by the blocking plate 56 and is supplied again to the upper passage 26,

At this time, 60% of the cold air remaining in the circulating cold air excluding the 40% circulating cold air passing through the evaporator 20 joins with the re-supply cold air and acts as a jacket pressure over the space of the upper passage 26 and the housing 42 And the ice crystals generated by the condensation in the evaporator 20 due to the circulating cool air of a high pressure moving at such a jacket pressure are immediately dropped off, so that the heat exchange efficiency of the evaporator 20 is remarkably improved.

FIGS. 1A and 1B are state diagrams of a plasma cooker, which is a conventional technique.
2 is an overall sectional view of a plasma chiller provided with an embodiment of the present invention.
3 is a partial cross-sectional view of a plasma freezer with an embodiment of the present invention.
4 is a perspective view of an air blowing member which is an embodiment of the present invention.
5 is an exploded perspective view of an air blowing member which is an embodiment of the present invention.
6 is a plan view of an air blowing member which is an embodiment of the present invention.
FIG. 7 is a graph showing a test result of a plasma freezer provided with an embodiment of the present invention

The present invention relates to a plasma freezer (2) for rapidly freezing a sealed pack filled with plasma at -50 ° C. The structure of the plasma freezer (2) will be described with reference to FIGS. 2 to 6.

The plasma freezer 2 includes a main body 4 which is box-shaped and opens the front surface. The door 6 is hinged on the front surface of the main body 4, And a heat insulating material 8 for preventing heat loss is installed in the main body 4 and the door 6. A control unit 10 is mounted on the front surface of the door 6.

The main body 4 is provided with a refrigerating device 12 connected to the control unit 10. The compressor 14 constituting the refrigerating device 12, the condenser 16 and the inflation side 18 are sequentially connected And the evaporator 20 is connected to the outlet of the expansion valve 18 and is fixed to the inner rear wall of the main body 4. The evaporator 20 is provided at the outlet thereof with a refrigerating device 12, The compressor 14 is connected.

A diaphragm 22 is vertically fixed to the front surface of the evaporator 20. The diaphragm 22 installed as described above separates the space in which the evaporator 20 is installed from the storage space 24, Upper and lower passages 26 and 28, respectively.

A plurality of rails 30 are horizontally disposed on the front side of the diaphragm 22 and are fixed to the side walls at equal intervals with a predetermined interval. And a tray 34 on which a pack filled with plasma is placed is detachably coupled to the drawer 32.

At this time, the drawer 32 is bent in a rectangular shape so that the central portion thereof passes through the drawer 32, and the tray 34 is in the form of a net. Accordingly, the circulating cold air passes through the drawer 32 and the tray 34, So that the plasma filled in the pack is rapidly frozen.

An air blowing member 36 for forcibly circulating cold air is provided at an upper end portion of the storage space 24 and a motor 38 connected to the control unit 10 is fixed to the upper end of the main body 4, The rotating shaft constituting the motor 38 is disposed at an upper portion of the receiving space 24 through the upper end of the main body 4 and the blowing fan 40 coupled to the leading end.

In addition, the housing 42 is fixedly installed on the inner upper end of the main body 4, and the blowing fan 40 is disposed therein.

The housing 42 installed as described above has an inlet hole 46 formed in the bottom plate 44 so as to communicate with the storage space 24 and an end portion located at one side of the bottom plate 44, The second side wall 50 and the third side wall 52 are connected to each other at an end of the first side wall 48 so as to be bent.

The upper ends of the first, second and third sidewalls 48, 50 and 52 are fixed to the inner surface of the upper end of the main body 4 and the lower portion of the air blowing fan 40 is positioned in the inflow hole 46 And an opening 54 communicating with the upper passage 26 is formed on the other side of the housing 42.

The rear end of the blocking plate 56 blocking the re-circulation of the cold air, which has flowed into the upper passage 26, backward along the blowing fan 40 is formed at one side of the first side wall 48 of the housing 42 The notch blades 58 are bent and formed integrally with the front end of the blocking plate 56. The notch blades 58 are positioned close to one side of the blowing fan 40, do.

At this time, the distance between the notch blade 58 and the blowing fan 40 is preferably 1 mm, but is not limited thereto.

A portion of the cool air that has moved to the upper passage 26 flows back into the notch blade 58 formed as described above and the notch blade 58 is turned back to one side by the cool air flowing backward, So that the gap formed between the first and second electrodes is kept open.

Hereinafter, the operation of the present invention will be described.

When the door 6 is opened to open the front of the main body 4 and then pull the drawer 32, the drawer 32 moves along the rail 30 along with the tray 34, 24, and then separates the tray 34 from the drawer 32.

The tray 34 filled with the plasma is packed with the sealed packs, and then the tray 34 is placed on the drawer 32 and advanced to return to its original position. The operation of placing the plasma pack on the tray 34 is performed in the same manner, and then the door 6 is closed.

Plasma filled in the pack is obtained by centrifuging red blood cells, platelets, white blood cells, etc. from the collected blood, and is usually rapidly frozen and stored at -50 ° C.

Subsequently, the refrigerator is controlled to a temperature of -50 ° C through a control unit 10 installed on the front of the door 6, and then the start button is pressed. Then, the refrigerating device 12 is operated, 4). At the same time, the motor 38 is operated to rotate the blowing fan 40 so that the air inside the main body 4 is forcibly circulated.

The air in the storage space 24 is moved upward through the inflow hole 46 of the housing 42 by the blowing fan 40 and then the air is blown by the blowing fan 40 into the housing 42 The air passes through the evaporator 20 and is heat-exchanged to be dripped to a low temperature to become cold air. The cold air then passes through the lower passageway 28, To the storage space (24).

As described above, the cold air that has reached the storage space 24 is sequentially passed through the drawer 32 and the tray 34 while the cold air freezes the plasma pack placed on the tray 34, So that the plasma packs lying in the different trays 34 are frozen sequentially.

The cool air is then introduced into the housing 42 from the storage space 24 through the inflow hole 46 and then repeatedly circulated by the fan 40 to the evaporator 20 do.

Therefore, when cold air in the storage space 24 passes continuously through the evaporator 20, the temperature reaches -50 ° C, and the cold air freezes the plasma pack in the storage space 24 to -50 ° C.

On the other hand, when the blowing fan 40 rotates, the left side in the rotating direction acts as a wind power and the right side acts as a suction force. At this time, the cold air passing through the housing 42 passes through the upper passage 26, The cool air that has flowed backward as described above flows through the gap between the right side of the blowing fan 40 and the right side of the first sidewall 48 through which the suction force acts, .

The cool air that has flowed backward is then sent from the inside of the housing 42 to the upper passage 26 again by the blowing fan 40.

At this time, if the countercurrent cool air strikes the notch blade 58 formed at the tip end of the blocking plate 56, a part of the cool air is separated to the right by the notch blade 58 and the second and third side walls 50, To the upper passageway (26).

At the same time, the circulating cold air in the storage space 24 is introduced into the housing 42 through the inflow hole 46 by the blowing fan 40, and then a part of the cool air, And moves to the passage 26.

The notch blade 58 is bent to one side while the notch blade 58 and the blowing fan 40 are formed in the process of colliding against the notch blade 58 as described above, The gap is kept open.

At this time, a part of the cool air flowing backward through the gap between the notch blade 58 and the blowing fan 40 passes through.

3% to 5% of the backward flow of cold air passes through the gap between the blowing fan 40 and the notch blade 58 so that only the blowing fan 40 and the notch blade 58 contact with each other, And 95% to 97% of the countercurrent cool air is supplied to the upper passage 26 along the second and third side walls 50 and 52 while being separated and pushed by the blocking plate 56 .

At the same time, the cool air that has flowed backward moves together with the cool air that has risen from the storage space 24, so that the upper passageway 26 and the evaporator 20 are separated from each other Sequentially.

At this time, some countercurrent cold air and circulating cold air passing through the gap between the countercurrent and the re-supplied cold air and the blocking plate 56 move to and join the upper passage 26, and the joined cool air then flows into the evaporator 20 And the remaining cold air is passed through the housing 42 and the space between the upper passageway 26 and the upper passageway 26. As a result, Which in turn increases the internal pressure and acts as a jacket pressure.

As described above, the circulating cold air that has reached the upper passage 26 quickly passes through the evaporator 20 at a high pressure by the jacket pressure.

As a result, the circulating cold air that moves to the jacket pressure immediately passes through the evaporator 20 and the ice crystals generated by the condensation phenomenon are immediately removed, and the passage through which the circulating cold air passes is secured in the evaporator 20, .

Therefore, the problem of generation of the static pressure due to the ice crystals in the evaporator 20 is solved and the evaporator 20 maintains the improved heat exchange efficiency. Therefore, the storage space 24 of the main body 4 is kept at -50 ° C The temperature can be kept constant, and such performance is the same as the test result shown in Fig.

Although the preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, it is to be understood that the present invention is not limited to the disclosed embodiments. Those skilled in the art will appreciate that various modifications, And various modifications and changes may be made without departing from the scope of the present invention.

2: Plasma freezer 4: Body
6: Door 8: Insulation
10: control unit 12: refrigerator
14: compressor 16: condenser
18: Inflation side 20: Evaporator
22: diaphragm 24: storage space
26: upper passage 28: lower passage
30: rail 32: drawer
34: tray 36: air blowing member
38: motor 40: blowing fan
42: housing 44: bottom plate
46: inflow hole 48: first side wall
50: second side wall 52: third side wall
54: open hole 56: blocking plate
58: Notch blade

Claims (3)

A main body 4 in which a storage space 24 is formed while the front surface is opened and a door 6 having a control unit 10 mounted thereon is hingedly installed on the front surface thereof;
A refrigerating device 12 connected to the control unit 10 and connected to the outside while fixing the evaporator 20 to the inner rear wall of the main body 4;
A diaphragm 22 vertically installed on the front surface of the evaporator 20 and separating upper and lower passages 26 and 28 from the upper and lower portions of the evaporator 20;
A drawer 32 and a tray 34 coupled to a rail 30 horizontally installed on the front side of the diaphragm 22 and forward and backward together;
And a motor (38) connected to the control unit (10) and disposed at an upper portion of the storage space (24) and a blowing fan (40) installed at an upper end of the main body (4)
A housing 42 is fixedly installed at an upper end portion of the main body 4 and a blowing fan 40 is disposed inside the housing 4 and an opening 54 is formed at the other side of the housing 42, And the bottom plate 44 of the housing 42 is formed with an inlet hole 46 so that the cool air in the storage space 24 can be moved to the upper passage 26 by the blowing fan 40 A blocking plate 56 is installed on one side of the housing 42 so that the cold air that has been moved to the upper passage 26 by the blowing fan 40 is partially blocked from flowing back and recirculating,
A notch blade 58 is formed at the tip end of the blocking plate 56 so that the cool air that has flowed backward from the upper passage 26 strikes the tip end portion and the notch blade 58 is turned to one side by the reverse air flow So that the gap formed between the air blowing fan 40 and the air blowing fan 40 is held in the opened state,
The shutoff plate 56 passes only a part of the cold air that has flown back to the housing 42 in a state where the circulating cold air moving by the blowing fan 40 passes only 40% through the evaporator 20, The cooling air is allowed to remain over the housing 42 and the upper passage 26 so that a jacket pressure with an internal pressure greater than the receiving space 24 is created in the space from the housing 42 to the upper passage 26 Wherein the refrigerator is a plasma freezer.



delete delete

Images