TW200400341A - Refrigerator - Google Patents

Abstract

A refrigerator is provided with a freezing room, a cool room and a pressure-reducing room that is cooled individually by a cool air. A container is disposed in the pressure-reducing room capable of being sealed. The container is cooled by the cool air directly or is cooled indirectly due to being sealed. When the container is sealed, the container can be discharged to turn to a pressure-reduced state.

Description

mmmr V. Description of the invention (1) [Technical field to which the invention belongs] The present invention relates to a refrigerator, and more particularly to a refrigerator provided with a decompression chamber for long-term storage of food. [Previous technology] In recent years, in the context of high concern for environmental economy, not only the diversity of cooling and storage temperature is valued, but also the long-term preservation and energy saving of foods that are originally functional in refrigerators. Generally, even if food is stored in the refrigerator, it is often found that food is degraded and rendered useless because of a period of storage. In order to prevent food from being discarded because it is useless, and to keep the food fresh, it is necessary to ensure that food is kept fresh. Long-term preservation of the original taste, nutrients and freshness of the material. The main causes of food deterioration include drying and oxidation. For drying, it can be effectively stored under conditions of low temperature fluctuations and high humidity, so that the evaporation temperature of the cooler specially designed for the temperature zone of each room can be increased to reduce the difference with the indoor air temperature. Prevent frost from adhering to the cooler to prevent drying. Furthermore, with regard to vegetables, the prevention of drying and the use of ethylene gas that removes aging hormones from fruits and vegetables can improve the preservation of freshness. Regarding the prevention of oxidation, it is known that the so-called CA (Controlled Atmosphere) can be used for preservation. There is about 20% oxygen in the air. This oxygen will oxidize the oil and fat parts of fish and meat and become the cause of food deterioration. Here, using CA to block food and oxygen, thereby having the effects of inhibiting the respiration of vegetables, inhibiting the activation of microorganisms and enzymes, and inhibiting the oxidation of oils and fats, thereby improving the freshness

11054pif.ptd Page 5 200400341 V. Description of the invention (2) Degree of preservation. Regarding the method of putting food in vacuum packs and putting them into a conditioning box, but each package is deteriorated in Japanese food. If the agent is opened in a refrigerator, it will saturate. [Summary of the Invention] The refrigerator is considered to have an air environment. Cooling was done to settle the space and a frozen storage space. The container can be formed by the storage container in a decompression state, and the profitability is reduced. The vegetables are made with a handle-square • • Yes, but the seeds are vacant or easy to prevent. To simplify the effect, the inside party can use the bag to reduce the ice bag. , Down.采 Miscellaneous state between the control state and the control court r)} CA, which is annoyingly sealed, is kept closed for a long time, and it should be used in the same manner as when it is in close contact with the long hair and as the phase is attracted. Ben, in (feR all boxes, no, room, pieces, ar, oxygen ice, and click on the knot rw to close the above problem to accept the lock pe to open the next question with up, etc. The above-mentioned problem is caused by the low oxygen content in the upper oxygen cut-off device in the upper ring of the oxygen ring. The refrigerator of the present invention has a refrigerated storage refrigerated storage space, and a reduced Pressurized storage space is separated from the cold storage space by a cold air flow. The decompressible storage space in the decompressed storage space is directly cooled or indirectly cooled by the airtight storage. The internal space of the storage container is exhausted. The structure can cool down the pressure in the storage storage container stored in the space of the decompression storage room to increase the concentration of oxygen in the decompressed atmosphere, and can block the stored food and oxygen. Therefore, it can inhibit the absorption effect, inhibit the oxidation of oils and fats, and inhibit the enzyme activity.

11054pif.ptd Page 6 200400341 V. Description of the invention (3) It can inhibit the activity of aerobic microorganisms, and can keep the freshness of the storage products for long-term storage. The refrigerator of the present invention further includes a cover installed on the top of the decompression storage space to seal the upper opening of the storage container, and an exhaust hole for decompression is provided on the cover. The refrigerator of the present invention is characterized in that the lid is moved up and down in accordance with the opening and closing of a door provided in an opening portion of the decompression storage space. According to this structure, when the door is pulled out, the lid will remain in the storage room space, and only the storage container is pulled out of the warehouse, so the user is very convenient when storing and taking out food, and the maintenance of cleaning or washing the container is quite convenient. It's easy. The refrigerator of the present invention is characterized in that when closing the special door of the decompression storage space, cooling air is introduced into the storage container, and after cooling to a certain temperature, the inside of the container is decompressed to a certain pressure. Because the food in the storage container is cooled to a predetermined temperature and then decompressed, it can be quickly cooled and can be stored in a low-oxygen environment for a long time. The refrigerator of the present invention is characterized in that a vacuum pump provided outside the storehouse is used, and an exhaust pipe connected to the vacuum pump is used to reduce the pressure of the storage container to a certain value between 50 and 200 Torr. And when the pressure in the storage container reaches a certain value, the driving of the vacuum pump is stopped. When the pressure in the storage container is reduced to less than 200 Torr, its oxygen concentration becomes less than 10% at atmospheric pressure, which can effectively suppress the oxidation of food and the breathing effect of fruits and vegetables. When the pressure is 50 Torr or less, the air intake is stopped. Therefore, even if the heat-sealed retort food or the like is accidentally stored in a sealed package, the packaged food can be prevented.

11054pif.ptd Page 7 200400341 V. Description of Invention (4) Disadvantages such as rupture. In addition, since the driving of the vacuum pump is stopped if the pressure of the storage container is within a predetermined range, the driving time of the pump is short and energy consumption can be reduced. The refrigerator of the present invention is characterized in that the decompression storage space can be used as a temperature switching room and is linked with the opening operation of a special door to open a leakage opening of the storage container to reach atmospheric pressure. Therefore, the container can be easily opened as the door is opened. In order to make the above and other objects, features, and advantages of the present invention more comprehensible, a preferred embodiment is described below in detail with the accompanying drawings as follows: [Embodiment] Hereinafter, according to the drawings An embodiment of the present invention will be described. FIG. 1 is a longitudinal sectional view of a refrigerator according to the present invention. An outer box 2 forming an outline of the refrigerator body 1 is provided, and an inner box 4 is provided through a heat insulating material 3 inside the box. A refrigerator compartment 5 is arranged at the uppermost part of the inner box 4 on the inner wall surface of the space, and a vegetable compartment 6 maintained at a slightly high temperature and high humidity is partitioned from the refrigerator compartment through a partition plate 7 below the refrigerator compartment 5. Below the vegetable compartment 6, a temperature-switching compartment 9 and an ice storage compartment (not shown) are arranged side by side through adiabatic partition walls 8 through an adiabatic partition wall 8, and a freezer compartment 10 is independently arranged at the lowermost part, in front of each storage compartment. The openings are opened and closed by their own dedicated doors. Each storage room is provided with a refrigerating cooler 11 and a refrigerating cooler 12 on the back of the refrigerating space and the freezing space, and fans 1 3 and 1 4 are installed near each cooler to cool the air using ducts. cycle,

11054pif.ptd Page 8 200 Satoshi if: ST: 5. Description of the invention (5) The cooling unit is formed on the back part of the cold heading space arranged at the bottom of the refrigerator body 1 by cooling control to the temperature set in each storage room. The space of the machine room 15 is provided with compressors 6 or less and supplied to the above-mentioned refrigerators and freezers 1 and 2 for refrigeration and freezing. : ♦ In the above-mentioned structure, the container 19 for the product is provided in the temperature switching chamber 9. The left cross-sectional view of the temperature switching chamber 9 is shown as, τ extinguished, and the inner side of the temperature switching chamber door 20 is deep. Direction Antu left-right support frame 21, support between this support frame ^ ^ The storage container 19 is described, and the door 20 can be pulled freely outside the library to the left and right-right support ㈣ 系, 上 ；.仏, 2lb, the L-shaped part at the lower end has the L-shaped part body 1 The side wall near the opening of the front surface of the front part 2 is provided on the refrigerator 21 and the rails formed on the two side walls of the inner box 4 = two daggers. State, and the upper L-shaped portion 2 1 a is a branch-shaped flange 19a, which can move freely around the moon. The pulleys 24 are slid in the rear sections 23 of the left and right support frames 21 on the upper part of each device 19, and are fixed on the inner surface of the temperature switching chamber door 2 to the left and right. The storage container 19 is held in the loading frame. The upper and lower support frames 21 are formed on the upper surface of the storage container 19 with lids 2 5. Covers 2 and 5 use 1 to be equipped with a spring 26 that completely covers the square, and the women's clothing that goes all the way to the spring 26 hangs down with a few openings on the top surface of the room; > 19 The peripheral edge of the lower surface of the cover 25 corresponding to the flange 19a of the container

200400341 V. Description of the invention (6) A ring-shaped seal 27 (seai packing) formed by household weight such as silicon resin is determined. When the cover 25 covers the opening of the container 19 as described later, The sealing pad 27 will contact the upper surface of the flange 19a to seal the inside of the container without a gap. A sectional view of the main part of the closed state of 9 temperature switching chambers is shown in Fig. 3, and a lid opening and closing mechanism 28 is provided in front of the upper part of the lid 25. The cover opening and closing mechanism 28 is composed of a rod-shaped body. One end 5 is connected to support the upper part of the temperature switching chamber door 20, and the other end is extended to the indoor side. A cover pressing part 2 8 a is provided at the front end to rotate up and down. In a free state, the joint and movement during opening and closing of the guide 29 having a rod-shaped body through the through hole 29a, which is switched to the top of the indoor front near the door 20 by the temperature and the temperature, can make another The pressing part 28a at the end moves up and down. t When the door is opened, as shown in Figure 4, the cover opening and closing mechanism 28 and the door 20 are pulled out of the library at the same time. However, by engaging with the through hole 29a of the guide portion, the other pressing portion 28a can be made. As the arrow 25 moves upward, the lid 25 can release the pressing force from the lower side, and it is convenient to move upward with the restoring force of the spring 26, so that the upper surface of the container 19 is opened. With this structure, when the temperature switching chamber door 20 is pulled out forward, the cover 25 is left in the room, and only the upper surface of the container 19 is opened and pulled out of the storehouse. When the door is moved in the depth direction of the storage container 19 due to the door closing operation, the other end of the lid opening and closing mechanism 28 is moved in the depth direction by the engagement with the guide portion 29, and the tip pressing portion 28a is pressed. The lid 25 closes the opening of the storage container 19 and closes the door. The inside of the storage container 19 is completely sealed by the aforementioned gasket 27.

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Sexual ancestors' secrets! 1 The rear section is provided with an exhaust pipe 31 ′ made of a pressure-relief structure, the end is inserted into the cover and opens in the container 9, and ^ 糸 = extends below to connect to Vacuum pump 30. The vacuum pump 30 is adjacent to the compressor 16 in the machine room 15. Depending on the necessity of saving food, it can be manually or automatically operated to drive the vacuum pump 30. After a predetermined period of time has elapsed since the door 20 was switched, the drive vacuum pump can be used to suck the air in the closed container 19 through the exhaust pipe 3 1 to reduce the pressure in the container. This vacuum pump 30 is used for the purpose of preserving food, or from the aspect of maintenance. It is desirable to use an oil-free vacuum pump (0 i 1 1 e s s). The pressure during the decompression in the storage container 19 can be changed by the suction time of the vacuum pump 30 and the opening degree of the exhaust pipe 31, but in the case of the embodiment, it is set to 50 ~ 2 0 0 Torr. Between the set value. That is, when the pressure of the storage container is lowered than 200 Torr, the amount of oxygen in the container can be reduced to less than 10% of the amount of oxygen at atmospheric pressure at normal pressure, which can effectively suppress the food With the oxidation and the respiration of fruits and vegetables, the containers 19 and lids 25 constituting the closed structure also need to use a pressure-resistant structure to offset the pressure. The packaged food is broken, so to prevent this disadvantage, and when the pressure in the storage container 19 is inside, it is necessary to control to stop the driving of the vacuum pump 30. On the other hand, the pressure in the container is 50 Torr Above, if you accidentally store a heat-sealed pressurized sterilized food (retort f00 (i), etc., in an enclosed package, once the pressure is reduced to less than 50 Torr, it may be caused by decompression: Fan Gu ' cassock

200400341 V. Description of the invention (8) When the food in container 19 is stored or taken out and the pressure inside the container is higher than 200 Torr, the vacuum pump 30 is driven to suck air to reduce the pressure to less than 200 T 〇rr . By using this operation control, the driving time of the vacuum pump 30 required for the food storage environment with low oxygen concentration can be shortened as much as possible, and thus the energy consumption can be suppressed. Next, the operation of the above structure will be described. Usually, when the refrigerator is in a cooling operation, when the doors of the storage compartments are closed, the cold air of the refrigerating and cold storage coolers 11, 12 is circulated to the storage compartments through the passages to cool them. The temperature switching room 9 is a small space that can be switched from minus 20 degrees Celsius to a variety of set temperatures up to rapid cooling, refrigerating, vegetable storage temperature, and positive 8 degrees Celsius temperature (warm) storage temperature. The operation of the four-surface operation panel 135 can use a damper to control the cold air introduced from the refrigerating cooler 12 to cool the food in the storage container 19 provided in the room to a desired set temperature. . Therefore, when the temperature switching chamber 9 is used as a normal cooling and holding switching chamber without being stored under reduced pressure, the vacuum pump 30 is not driven, and the cover 25 is normally opened to introduce cold air for circulating cooling. Furthermore, the opening may be closed with a cover 25 to achieve indirect cooling around the container 19 and maintain high-humidity cooling. When the temperature switching chamber 9 is set as a decompression storage chamber, the upper opening of the storage container 19 in the room is sealed with a cover 2 5, and the air in the container 19 is driven by the vacuum pump 30 The exhaust pipe is sucked out to be in a reduced pressure state, and the fish oil can be carried out by using a low oxygen concentration between 50 and 200 T 〇rr.

11054pif.ptd Page 12 20040ΰ34ί V. Description of the invention (9) Prevention of oxidation of lipids and inhibition of respiration of fruits and vegetables, etc., so long-term preservation of food can be achieved. In this state, when the door 20 of the temperature switching chamber is pulled out and the door is opened, it is the result that the door opening and closing mechanism 28 is pulled out of the door and the cover opening and closing mechanism 28 is pulled out. By pressing the cover, the lid 25 will be opened upward by the force of the spring 26, so the inside of the container 19 will return to atmospheric pressure, and only the container with the open state above can be pulled out of the warehouse. When the opening operation of the container lid is complicated due to the decompression, the food is stored or taken out. And since the door 20 and the support frame 21 can be removed from the container 19, the container can be easily cleaned and cleaned. When the food storage and unloading operation is completed and the door is closed, the lid opening and closing mechanism 28 will perform a door closing operation, and the tip of the rod-shaped body will move to the depth direction in the library, and at the same time, it will be pointed downward by the engagement with the guide 29. Pressing the pressing part 2 8a presses the top of the pressing cover 25 against the force of the spring 26 to seal and close the opening of the storage container 19, and drives the vacuum pump to suck the internal air of the container 19 and reduce the pressure. When the pressure reaches a predetermined pressure value, the suction operation is stopped, and the suction operation is maintained here. At this time, the storage container 19 is in a sealed state, and cooling is performed indirectly from the periphery of the container. However, if the material of the container is formed of a good thermal conductor such as a rigid rigid plate capable of resisting decompression, it may be sufficient. High humidity is maintained by indirect cooling, and food is cooled well. Next, other embodiments of the present invention will be described. In the foregoing embodiment, although the operation of the lid opening / closing mechanism 28 and the guide portion 29 is used, the storage container is opened in a manner that is linked to the opening operation of the temperature switching chamber door 20.

11054pif.ptd Page 13 200400341 V. Description of the Invention (ί) The lid 25 returns the inside of the container 19 to atmospheric pressure. However, in this embodiment, as shown in FIG. 5, the same part as the previous embodiment is used With the same symbol, the handle 3 3 of the sliding door 20 of the temperature switching chamber 9 can be pulled by hand and the rotation of this mechanism can be used to gently open the door. By turning the handle 3 3, the valve opening the hole 34 provided on the cover 25 and communicating with the outside is linked, whereby the door opening action of the handle 3 3 can be used as a signal, and the leakage valve 3 5 can be opened at the same time. The communication holes 34 of the lid quickly return the atmosphere to the container 19 in a momentary motion. With this mechanism, when the door is opened, the storage container 19 can reach atmospheric pressure very quickly, so the lid can be easily opened at 25 °. In particular, although not shown, it can also be used as the lid 25 of the container. When the electromagnetic opening valve is installed, the manual switch provided on the surface of the sliding door 20 is used to open the valve and return to atmospheric pressure. ^ In the foregoing embodiment, although the sealing of the storage container 19 is not the use of the lid 25 provided on the upper opening, but the communication hole 34 provided on the lid 25 returns to atmospheric pressure, but the communication hole does not It is not limited to be provided on the cover 2 5. Therefore, the sliding door 20 and the storage container 19 are closely adhered, and although a communication hole can be formed on the surface of the door 20, in order to prevent the outside air from entering the storage container at normal temperature due to an erroneous leakage operation, the temperature of the food will be caused. For ascent, it is preferable to form a communication hole for leakage in the temperature switching chamber 9 and to introduce cold air into the interior when opening. Furthermore, in the foregoing embodiment, although the lid opening / closing mechanism 28 and the door 20 of the temperature switching chamber are opened and closed in conjunction with each other, as shown in FIG. 6, the door may be opened and closed without interlocking with the door. 4 5 with a solenoid

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200¾ Turn fF 5. Description of the invention (11) 4 0, and according to the door switch signal (not shown), use the relationship between the energization of the coil 40 and the spring 4 6 to open and close the lid 4 5 of the container 3 9 . Or after a certain time after the door is closed, for example, 30 minutes, the opening of the container 39 is opened, and the cold air is introduced into the container until the food is cooled to a predetermined temperature, as shown in FIG. 7, By using the protruding force of the actuating rod 41 energized by the solenoid and the elastic force of the tension spring to press the cover 45 from above to close the opening of the container 39, the vacuum pump 30 is driven after that. The pressure in the container is reduced to a predetermined pressure, for example, 100 Torr may be used. In addition, the lid of the storage container can be opened and closed as described above, or as shown in FIG. 8, a pinion gear 47 and a rack 48 that are driven by a motor are moved together to move the lid. 45 moves up and down to open or close the opening on the container 39. ^ According to this structure, in order to cool the food in the storage container 39 to a predetermined temperature and then decompress it, the indirect cooling under the depressurized state has poor heat conduction, which can avoid the disadvantages of damage and cooling effect, so it can be compared with low oxygen Longer storage in the environment. Moreover, in the above-mentioned embodiment, although the decompression storage room was provided in the temperature switching room 9 as an example, it is not limited to this, and it may be in a part of the refrigerating room 5 or a section of the freezing room 10 Wait for other storage rooms to form independent compartments. [Effects of the Invention] As described above, according to the structure of the present invention, the storage items stored in the reduced pressure storage space can be directly or indirectly cooled, and the storage container can be stored in the storage container.

11054pif.ptd Page 15 20 5. Explanation of the invention (12) As a result of being decompressed, the oxygen concentration in the depressurized atmosphere is low, which can block the food and oxygen stored and stored, and thus can inhibit the breathing of vegetables. Function, inhibit oxidation of oils and fats, inhibit enzyme activity, inhibit the activity of aerobic microorganisms, and can maintain the freshness of the storage for a long time for long-term storage. Although the present invention has been disclosed in the preferred embodiment as above, it is not intended to limit the present invention. Any person skilled in the art can make some modifications and retouching without departing from the spirit and scope of the present invention. Therefore, the present invention The scope of protection shall be determined by the scope of the attached patent application.

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20040034T Brief description of drawings [Simplified description of drawings] Fig. 1 shows a longitudinal sectional view of a refrigerator according to a first embodiment of the present invention; Fig. 2 shows a front section of a support portion of the decompression storage space of Fig. 1 Fig. 3 is an enlarged longitudinal sectional view of the main part of the decompression storage space of Fig. 1; Fig. 4 is a longitudinal sectional view of the drawing-out state of the storage container of Fig. 3; Fig. 6 is a cross-sectional view of the same part as Fig. 3 of another embodiment of the present invention; Fig. 6 is a schematic cross-sectional view of another embodiment of the lid opening and closing mechanism of the present invention; Fig. 7 is a view showing the storage of Fig. 6 A cross-sectional view of the open state of the container upper opening; and FIG. 8 is a schematic cross-sectional view showing another embodiment of the lid opening and closing mechanism of the present invention. [Description of Drawings] 1: Refrigerator body 4: Inner box 5: Refrigerator compartment 9: Temperature switching room 11: Refrigerator cooler 12: Cooling cooler 1 5: Machine room 1 9 and 3 9: Storage container 2 0: Switching room door 21: Support frame 2 2, 2 4: Pulley 2 3 ... Rail 24, 45 ... Cover 26, 46 ... Spring 27: Gasket 2 8: Cover opening and closing mechanism 2 8 a: Inner box 29 : Guide

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Claims (1)

2004⑽ Ml 6. Scope of patent application 1. A refrigerator having a cold storage space, an east storage space, a refrigerated storage space, and a decompression storage space, which are independent of the refrigerated storage space and the refrigerated storage space by a cold air Cooling, wherein a closed storage container is arranged in the decompression storage space, which can be directly cooled by the cold air flow or indirectly cooled due to sealing, and when the storage container is in a closed space, the inside of the storage container can be made The space is exhausted to a reduced pressure. 2 · The refrigerator according to item 1 of the scope of the patent application, further comprising a cover installed on the top of the decompression storage space to seal the upper opening of the storage container, and a row for decompression is provided on the cover. Stomata. 3. The refrigerator according to item 2 of the scope of patent application, characterized in that the lid is moved up and down in accordance with the opening and closing of a door provided at the opening of the decompression storage space. '4. The refrigerator according to any one of claims 1 to 3 in the scope of patent application, characterized in that when closing the special door of the decompression storage space, the cooling air is introduced into the storage container and cooled After reaching a constant temperature, the pressure in the container is reduced to a constant pressure. 5. The refrigerator according to any one of claims 1 to 3 in the scope of patent application, characterized in that a vacuum pump provided outside the library is used, and an exhaust pipe connected to the vacuum pump is used , Reducing the pressure of the storage container to a certain value between 50 and 200 Torr, and when the pressure in the storage container reaches the certain value, stopping driving the vacuum pump. 6 · The freezer according to any one of claims 1 to 3 in the scope of patent application, characterized in that the decompression storage space can be used as a temperature switching chamber, 11054pif.ptd Page 19 200400 VI. Scope of patent application In conjunction with the opening action of the special door, one of the storage containers can be opened to reach the atmospheric pressure. 11054pif.ptd Page 20