KR0160418B1 - Refrigerator - Google Patents

Abstract

The present invention relates to a refrigerator, and more particularly, by discharging the air in the vegetable compartment to the outside by using the pressure difference inside the refrigerator generated by opening and closing the refrigerator door or by the operation of the compressor and the fan. It relates to a refrigerator that can store food permanently and freshly.

The present invention provides a refrigerator main body including a refrigerator compartment and a freezer compartment, a door rotatably installed on one surface of the main body, a shelf installed at a lower side of the refrigerator compartment, and an upper surface on which the food is stored between the shelf and the bottom of the refrigerator compartment. In the refrigerator having the opened case, the case forms a sealed space when inserted between the shelf and the bottom of the refrigerating chamber, the one side of the main body is operated by the pressure change in the refrigerator according to the opening and closing of the door, The air discharge device for discharging the gas inside the case generated by the breathing of food to the outside of the main body.

Description

Refrigerator

1 is a side cross-sectional view showing the configuration of a typical refrigerator.

Figure 2 is a side cross-sectional view showing the configuration of a refrigerator according to the present invention.

Figure 3 shows the vegetable compartment according to the present invention, (a) is an exploded perspective view of part of the shelf and case. (b) is a cross-sectional view of the shelf and the case.

4 is a partially cutaway perspective view of the air discharge device according to the present invention.

5 is a diagram showing a change in pressure inside the refrigerator generated when opening and closing the refrigerator door.

* Explanation of symbols for main parts of the drawings

40: door 51: shelf

52: coupler 53: support

54 sealing member 56 case

57: locking rail 58: support rail

59: guide 110: the first cylinder body

111: 1st cylinder 112, 113: 1st, 2nd inlet pipe

114: first piston 115: elastic member

116: connecting shaft 120: second cylinder body

121: second cylinder 122: second piston

123, 124: first and second discharge pipe 125: valve

127: flow port 128: connector

200: main body

The present invention relates to a refrigerator, and more particularly, by discharging the air in the vegetable compartment to the outside by using the pressure difference inside the refrigerator generated by opening and closing the refrigerator door or by the operation of the compressor and the fan. It relates to a refrigerator that can store food permanently and freshly.

1 is a side cross-sectional view showing a configuration of a general refrigerator, which will be briefly described.

The door 20 is opened and closed on one side of the refrigerator main body 10 in which the refrigerating chamber 11 includes the freezing chamber 12. The main body 10 includes an inner wall 13 and an outer wall 14, and components constituting a refrigeration cycle are embedded between the inner wall 13 and the outer wall 14. To explain this, a compressor 30 is provided below the main body to compress the refrigerant to a high temperature and a high pressure. The refrigerant generated by the compressor (30) is introduced into the evaporator (31) installed in the separation wall separating the refrigerating chamber (11) and the freezing chamber (12) through a condenser (not shown) at low temperature and low pressure. When the evaporator 31 and the air inside the refrigerator exchange heat, the air becomes a low temperature and flows into the refrigerating chamber and the freezing chamber. The cold air is forcibly blown into the refrigerating chamber and the freezing chamber by the fan 32, and a damper 33 is installed at the refrigerating chamber side of the flow path for guiding the flow of the cold air to adjust the amount of cold air flowing into the refrigerating chamber.

A plurality of shelves 15 for storing food are installed in the refrigerating chamber 11, and a case 16 for storing vegetables and the like is provided on the bottom of the vegetable compartment shelf 16a on the bottom of the refrigerating chamber. Vegetables and fruits that are stored in the refrigerating chamber with their own exposure are stored in the vegetable room, which is kept in a somewhat confined space to prevent the loss of moisture by cold air and to prevent aging by one's breathing. To maintain its freshness.

When food is stored in a conventional refrigerator vegetable room as described above, air outside the refrigerator is introduced into the refrigerator by opening and closing a door. Under the influence of this incoming air, vegetables are deprived of more and more moisture and their aging promotes aging. In other words, when the food is exposed and stored in the vegetable room, the period of freshness is very short.

The present invention has been made to solve the above disadvantages, an object of the present invention is to provide an air discharge device which is operated by opening and closing of the refrigerator door, or by the pressure difference inside the refrigerator generated by the operation of the compressor and the fan. It is provided in communication with, and by using the air discharge device to discharge the gas inside the vegetable chamber generated by the respiration of vegetables to the outside to provide a refrigerator that can maintain the freshness of the food stored in the vegetable chamber semi-permanently.

The present invention for achieving the above object is a refrigerator main body having a refrigerator compartment and a freezer compartment, a door rotatably installed on one surface of the main body, a shelf installed below the refrigerator compartment, and a shovel between the bottom of the shelf and the refrigerator compartment. A refrigerator having a case having an upper surface opened to store food, wherein the case forms an airtight space when inserted between a shelf and a bottom of a refrigerator compartment, and on one side of the main body of the refrigerator according to opening and closing of a door. It is configured to operate by the pressure change, the air discharge device for discharging the gas inside the case generated by the breathing of food to the outside of the main body.

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

As shown in FIG. 2, the refrigerator according to the present invention includes a refrigerator main body 200 having a refrigerating compartment 41 and a freezing compartment 42, and the door 40 is centered on one side in front of the main body 200. It is installed to open and close. The main body 200 includes an inner wall 43 and an outer wall 44, and components constituting a refrigeration cycle are embedded between the inner and outer walls 43 and 44. In this case, a compressor 45 for compressing a refrigerant at a high temperature and a high pressure is installed at the rear side of the main body. The refrigerant generated by the compressor 45 flows into the evaporator 46 installed in the separation wall separating the refrigerating chamber 41 and the freezing chamber 42 through a condenser (not shown). It enters the evaporator. When the evaporator 46 and the air inside the refrigerator exchange heat, the air becomes a low temperature and flows into the refrigerating chamber and the freezing chamber. The cold air is forcedly blown into the refrigerating chamber and the freezing chamber by the fan 49 provided on the evaporator side. In addition, a damper 47 is installed at one side of the flow passage communicating with the refrigerating chamber among the flow passages for guiding the flow of cold air to adjust the amount of cold air flowing into the refrigerating compartment. The refrigerator compartment 41 is provided with a plurality of shelves 48 on which food containers are mounted, and the vegetable compartment 50 is provided on the bottom of the refrigerator compartment. The vegetable room stores food such as vegetables that are kept exposed.

The above is the same as the conventional configuration, the refrigerator according to the present invention is provided so that the vegetable compartment 50 is sealed. When the vegetable compartment is provided in a sealed state, the gas generated by the breathing of the vegetable is accumulated in the vegetable compartment. An air discharge device 100 for discharging the gas to the outside of the main body is connected to the main body 200 in communication with the vegetable chamber 50. Is installed.

Vegetables and the like stored in the vegetable room can be stored while keeping the freshness in a closed state. If it is stored in an unsealed state, the water is deprived by the hot air in the open and closed doors and the cold air in the refrigerating chamber. So, if kept in a sealed state, the freshness can be maintained for a long time.

In addition, the principle of operating the air discharge device according to the invention is due to the pressure difference. When we open the refrigerator door, hot air from outside the refrigerator flows into the refrigerator. After closing the door, closing the door causes a pressure change inside the refrigerator. In detail, since the air introduced into the refrigerator is hotter than the air inside, the volume per unit area is larger than that of the cold air inside the refrigerator. When hot air from the outside of the refrigerator is introduced and the door is closed, the temperature of the hot air introduced into the refrigerator decreases to a low temperature, thereby reducing the volume per unit area. In other words, if the door is closed after the hot air is introduced into the refrigerator, the air inside the door becomes cold and the volume decreases, so the pressure inside the refrigerator drops.

In addition, when the refrigerator is first operated, cold air is gradually generated, and the cold air is cooled in the air inside the refrigerator. That is, since the air volume inside the refrigerator is reduced, the pressure inside the refrigerator is reduced.

In addition, since the amount of cold air inside the refrigerator changes as the number of rotations of the blowing fan forcibly blowing cold air into the refrigerating compartment and the freezing compartment changes, the pressure inside the refrigerator also changes.

Using the pressure change to discharge the air inside the refrigerator to the outside is the air cabbage device 100 according to the present invention.

As shown in FIG. 3, the vegetable compartment 50 according to the present invention is provided with a shelf 51 and a case 56 having an upper portion coupled to the bottom of the shelf. In detail, both sides of the shelves are supported on both side walls of a predetermined height (the same height as the height of the case) at the bottom of the refrigerating compartment 41 and are installed in the refrigerating compartment. In addition, a case 56 between which the food is stored is inserted and removed between the shelf 51 and the bottom surface of the refrigerating chamber 41. At the front end of the shelf 51, a coupler 52 having a cross-sectional shape b is rotatably provided. The coupler 52 is caught on the bottom surface of the locking rail 57 of the case described below to seal and form the shelf and the case. At the rear end of the shelf, a support 53 is formed in which its cross-section is symmetrical with the coupler 52. The rear end of the case is supported on the support 53. And the sealing member 54 forming a square is bonded to the edge of the shelf. The sealing member 54 is such that when the case 56 is completely inserted between the shelf and the bottom of the refrigerating chamber, the sealing member 54 is in close contact with the upper end of the side of the case 56 to further seal the inside of the case.

Case 56 according to the present invention is provided with a front face is opened, the front end of the engaging rail 57 is coupled to the engaging port 52 is projected to the outside of the case is formed. And a support rail 58 that is caught on the support 53 is projected to the outside of the case at the upper rear. When the case 56 is inserted between the shelf 51 and the bottom surface of the refrigerating compartment 41, the upper side of the case and the sealing member 54 contact with each other, thereby forming a sealed space. In addition, the guide tube 59 protrudes and is formed at one side of the rear side of the case, and the guide tube 59 communicates with the air discharge device 100 to be described in detail below.

When the case is inserted between the shelf and the bottom of the refrigerator, the guide tube air discharge device is in communication, and when the case is removed, the air pipe is separated from the air discharge device.

As described above, the vegetable compartment according to the present invention constitutes an enclosed space. When the vegetables and the like are stored in the enclosed space, the gas by the respiration of the vegetable itself is accumulated in the case. If the gas is not discharged, the food is promoted in aging. The device for discharging the gas accumulated in the vegetable chamber is the air discharge device according to the present invention.

Referring to Figure 4 will be described an air exhaust device 100 according to the present invention.

The air discharge device according to the present invention is installed on the rear main body 200 of the case 56, and is provided with a first cylinder body 110 and a second cylinder body 120.

One side of the first cylinder body 110 is in communication with the outside of the main body 200, the other side is in communication with the refrigerating chamber 41 is activated when low pressure is generated in the refrigerating chamber. And the second cylinder body 120 is one side is in communication with the outside of the main body 200, the other side is in communication with the case 56 when the low pressure is generated in the refrigerating chamber to transfer the force from the first cylinder body (110). The air inside the case is discharged to the outside.

Referring to the configuration of the first cylinder body 110, the first cylinder 111 is installed on one side of the main body 200. One side of the first cylinder 111 has one end in communication with the first cylinder 111 and the other end is extended to the outside of the main body is provided with a first inlet pipe 112 through which high pressure is introduced. The second inlet pipe 113 into which the other end of the first cylinder 111 is in communication with the first cylinder 111 and the other end is extended to the refrigerating chamber side so that low pressure generated in the refrigerating chamber is opened by opening and closing the door 40. This is installed. In addition, when low pressure is generated in the refrigerating compartment, the first cylinder 111 includes a first piston 114 which is moved to the low pressure side by a pressure difference caused by a high pressure outside the refrigerator and a low pressure of the refrigerating compartment. The first piston 114 is returned to the initial state by the elastic member 115 provided between the first cylinder 111 and the first piston 114. One end of the connecting shaft 116 is coupled to one surface of the first piston 114, and the other end of the connecting shaft 116 extends outside of the first cylinder 111.

Referring to the configuration of the second cylinder body 120, the second cylinder 121 is installed on one side of the main body 200. The second cylinder 121 includes a second piston 122 connected to the other side of the connecting shaft 116. The second piston 122 is moved by the movement of the first piston 114. The first discharge pipe 123 communicating with the second cylinder and communicating with the guide tube 59 is provided at the other end. Gas inside the case is discharged through the first discharge pipe 123. When the second piston 122 is moved by the movement of the first piston 114, the air in the first discharge pipe is moved toward the second cylinder 121, so that the air in the first discharge pipe is discharged. The other side of the second cylinder 121 is provided with a second discharge pipe 124, one end is in communication with the second cylinder and the other end is extended to the outside of the main body 200. The air delivered through the first discharge pipe 123 is discharged to the outside of the main body through the second discharge pipe 124. A valve 125 for opening and closing the first discharge pipe is provided at one inner side of the first discharge pipe 123, and the valve 125 is provided only when the first piston 114 moves to the low pressure side. ).

The valve 125 is installed between the upper and lower hooks 126a and 126b and the upper and lower hooks 126a and 126b formed at predetermined intervals on one side of the first discharge pipe 123 to flow. It is provided with a spherical flow port (127). The upper and lower latches 126a and 126b are hollow bodies and have the same shape as the flow port, that is, the upper and lower latches are coupled between the upper and lower latches when the cross sections of the upper and lower latches are coupled. It is formed to be embedded. When the second piston 122 is moved by the movement of the first piston 114, the air inside the first outlet pipe 123 is also flown, and the flow port 127 is caught by the lower side of the frame by the force of the flow air. 126b) is moved to the upper hook frame 126a. When moving, the first discharge pipe is in an open state, so gas inside the case is discharged, and when the upper catching frame 126a contacts the hollow part of the upper catching frame, the first discharge pipe 123 is closed so that the gas is no longer discharged. It doesn't work.

After the first and second pistons 114 and 122 are moved by the pressure difference, when the inside of the refrigerator is in an equilibrium state, the first piston 114 is gradually returned to the initial state by the elastic member 115.

In addition, a connector 128 such as a coupling is coupled to the outer circumference of the connection portion between the guide tube 59 and the first discharge pipe 123. The connector 128 prevents gas from leaking into the connection portion between the guide tube 59 and the first discharge pipe 123, and the guide tube is easily inserted into the first discharge pipe when the case 56 is inserted or removed. To make it possible.

5 is a diagram showing a change in pressure inside the refrigerator generated when opening and closing the refrigerator door. 4-5 seconds after touching the door, the maximum pressure change inside the refrigerator is reached, which is about 15-20 mmAq.

The operation and effects of the refrigerator according to the present invention having the above structure will be described.

The shelf 51 is provided on one side of the refrigerating chamber 41. The case 56 is installed between the shelf 51 and the bottom of the refrigerating compartment, and the air discharge device 100 is connected to the inner wall and the outer wall of the main body so that the guide tube 59 and the first discharge pipe 123 of the case communicate with each other. Install in between. After that, you can store the food you expose, such as vegetables, in a case. Since the case is sealed, gas generated by breathing of vegetables or the like is accumulated in the sealed space.

We often open and touch the door 40 to put or take food or the like into the refrigerator. When the door is touched, the pressure begins to decrease slowly, with a maximum pressure change about 4-5 seconds after the touch. When the door is touched, the first cylinder 111 on the first inlet pipe 112 has high pressure air, and low pressure air flows into the first cylinder on the second inlet pipe 113 side, so that the first piston ( 114 is moved to the second inlet pipe 113 side. Then, the second piston 122 connected by the first piston 114 and the connecting shaft 116 is also moved to the second discharge pipe 124 side. Before the first piston 114 is moved, the flow port 127 is in contact with the lower locking frame 126b, so that the first discharge pipe 123 is closed. In detail, the first discharge pipe 123 side is in communication with the case side of the sealed container and the second discharge pipe 124 side is in communication with the outside of the high pressure, the case side is low pressure relative to the flow port 127 cylinder side This is a high pressure. Therefore, the flow port 127 is in contact with the lower engaging frame 126b to block the first discharge pipe 123. When the second piston 122 is moved by the first piston 114, the air between the second cylinder 121 and the valve 125 is also moved to the second discharge pipe 124 side. At this time, the flow port 127 is moved by the upper flow frame 126a by the flow of the air, the moment the flow port 127 is moved to the upper edge frame is the first discharge pipe is in an open state. At this moment of opening, air in the case side also flows into the second cylinder 121 side. That is, the gas inside the case is discharged until the flow hole 127 is in contact with the upper catching frame 126a. When the flow hole is in contact with the upper catching frame 126a, the first discharge pipe 123 is closed. Is no longer discharged. Then, as time passes, the pressure inside the refrigerator gradually returns to the state before opening the door. When the pressure inside the refrigerator is gradually returned, the first piston 114 is also gradually returned to the initial state by the elastic member 115. Then the flow port 127 is also moved to the lower hook frame (126b) to seal the inside of the case.

As described above, the refrigerator according to the present invention is provided with an air discharge device that is operated by a pressure change inside the refrigerator in communication with a closed vegetable compartment, and discharges gas inside the vegetable compartment to the outside, thereby freshening the food stored in the vegetable compartment. There is a feature that can be maintained permanently.

Claims (6)

A main body 200 in which a refrigerating chamber 41 and a freezing chamber 42 are formed, a door 40 for opening and closing the main body 200, a freezing chamber 42 and a refrigerating chamber 41 of the main body 200, respectively; A plurality of shelves 51 are detachably installed in the refrigerating compartment 41 to support the food stored in the refrigerating compartment 41, and are detachably installed at the bottom of the refrigerating compartment 41 in which the shelves 51 are installed. In the refrigerator consisting of a case 56 for storing and storing the, the shelf 51 located on the upper part of the case 56, the case when the case 56 is inserted into the lower part of the shelf 51 A coupling tool 52 rotatably installed at the front end of the shelf 51 to hermetically seal the support 56, and a support tool formed at the rear end of the shelf 51 so that the upper end of the rear surface of the case 56 is supported. And the inside of the case 56 when the case 56 is inserted into the shelf 51. And a sealing member 54 adhered to the bottom surface of the shelf 51 so as to be tightly sealed, and the case 56 protrudes above the front surface of the case 56 so as to be engaged with the coupler 52. The formed catching rail 57, the support rail 59 protruding from the rear side of the case 56 so as to be supported by the support tool 53, and the gas of the case 56 when the low pressure is generated in the refrigerator It includes a guide tube 59 for guiding to be discharged to the main body, the main body 200 is operated by a change in the internal pressure of the refrigerator according to the opening and closing of the door 40 to discharge the internal gas of the case 56 Refrigerator, characterized in that the air discharge device 100 is provided with a first cylinder body 110 and a second cylinder body 120. According to claim 1, The air discharge device 100, when low pressure is generated in the refrigerating chamber 41, one side is in communication with the outside of the main body 200 and the other side is the refrigerating chamber 41 side When the low pressure is generated in the first cylinder body 110 and the refrigerating chamber 41 in communication with one side, the one side is operated by the first cylinder body 110 so that the internal gas of the case 56 is discharged to the outside. And a second cylinder body (120) communicating with the outside of the main body (200) and communicating with the refrigerating chamber (41). According to claim 2, The first cylinder body 110, the first cylinder 111 provided on one side of the main body 200, one end is connected to the cylinder 111, the other end is the main body 200 The first inlet pipe 112, which is in communication with the outside of the external high pressure flows, and one end is connected to the first inlet pipe 112, the other end is in communication with the refrigerating chamber 41, the low pressure of the refrigerating chamber 41 The first inlet pipe 113 and the first piston 114 embedded in the first cylinder 111 to be moved to the low pressure side by the low pressure introduced through the second inlet pipe 113 and the The elastic member 115 held between the first piston 114 and the first cylinder 111 so that the first piston 114 is restored to the original state, and the original member by the elastic member 115 One end is connected to the first piston 114 to be restored and the other end is formed of a connecting shaft 116 extending to the outside of the first cylinder 111 Refrigerator according to Jing. According to claim 2, The second cylinder body 120, one end is connected to the second cylinder 121 and the second cylinder 121 provided on one side of the main body 200, the other end is the case ( 56 to the second cylinder 121 so that the gas discharged through the first discharge pipe 123 and the first discharge pipe 123 communicated with the guide tube 59 of the main body 200 is discharged to the outside of the main body 200. One end of the second discharge pipe 124 and the other end in communication with the outside of the main body 200 and the end of the connecting shaft 116 of the first cylinder body 110 is connected to the first cylinder body 110 The second piston (moved in conjunction with the movement of the first piston 114 of the) to push the gas on the side of the first discharge pipe 123 to the second discharge pipe 124 (2) built in the second cylinder 121 ( 122) and a valve (125) provided in the first discharge pipe (123) so that the first discharge pipe (123) is opened only when the second piston (122) moves. According to claim 4, The valve 125, the upper and lower engaging frames (126a, 126b) and the second piston 125 is installed at a predetermined interval inside the first discharge pipe 123 is moved Refrigerator, characterized in that consisting of a flow port 127 provided between the upper and lower engaging frames (126a, 126b) to open and close the first discharge pipe (123) by the flow of the gas flows along. The refrigerator according to claim 4, wherein the first discharge pipe (123) is provided with a connector (128).