KR100407965B1 - cooling and heating cabinet using hydrogen storage alloy - Google Patents

Abstract

The present invention relates to a cold storage using a hydrogen storage alloy, the present invention is divided into a refrigerating compartment and a warm compartment, the body and the air introduced from the refrigerating compartment and the warm compartment is heat-exchanged after cooling or heating again to the refrigerating compartment and the compartment A heat exchange unit for discharging, a cold air supply duct through which cold air is supplied from the heat exchange unit to the refrigerating chamber side, a pair of cold air return ducts through which air in the refrigerating chamber is returned to the heat exchange unit side, and warmth is supplied from the heat exchange unit to the greenhouse chamber side Provides a cold storage cabinet using a hydrogen storage alloy, characterized in that it comprises a warm air supply duct and a pair of warm air return duct that the air in the warm room is returned to the heat exchange unit side, hydrogen is absorbed or released into the hydrogen storage alloy Refrigerating function and temperature of the refrigerator by using exothermic or endothermic reactions It enables the use of environmentally friendly energy sources, simplifying the device and increasing efficiency.

Description

Cooling and heating cabinet using hydrogen storage alloy

The present invention relates to a cold storage cabinet, and more particularly, a refrigeration function and a warming function using an endothermic reaction and an exothermic reaction occurring in each reactor when a hydrogen storage alloy charged inside a pair of reactors release or absorb hydrogen. It relates to a cold and hot storage using a hydrogen storage alloy to be carried out.

In general, a refrigerator or a warmer is used to store food or medicine in a refrigerated or warmed state suitable for use, and in recent years, a refrigerator has been developed and widely used to perform such a cooling function and a warming function simultaneously. have.

Most of these cold and cold stores are applications of refrigeration cycles using refrigerants, and the refrigerant cycles through various devices such as a compressor, a first heat exchanger, an expansion valve, a second heat exchanger, and so on in accordance with the phase change of the refrigerant. Endothermic or exothermic reactions occur in the heat exchanger, and forced air is blown to each heat exchanger to perform heat exchange to perform the refrigerating and heating functions of the target space to maintain a predetermined temperature state.

As described above, the general cold / cold storage using the heat transfer according to the phase change of the refrigerant requires a refrigerant such as a freon-based chlorofluorocarbon (CFC), which has problems in terms of environmental protection such as ozone layer destruction and global warming. In addition, the structure is complicated because a variety of accessories are required to phase change the refrigerant to generate an endothermic / exothermic reaction.

In addition, the cold and cold refrigerator using the refrigerant cycle has a long time required for the temperature inside the refrigerating chamber and the heating chamber to reach a predetermined temperature that satisfies a desired function after the operation, and the operation of each device for phase change of the refrigerant There was a problem that the noise caused by the flow and phase change greatly occurs.

On the other hand, a thermoelectric element capable of simultaneously causing endothermic reaction and exothermic reaction by electric thermoelectric operation has been developed long ago so that refrigeration and warming functions can be simultaneously performed without using the aforementioned refrigerant cycle.

In the case of the cold / heat cabinet using such a thermoelectric element, since the heating and cooling speed are fast after operation, it can be applied to a local cooling device or a heating device requiring a small amount of rapid cooling or heating, but it is difficult to apply to a large-capacity cold / heat cabinet. Because of this high price, the situation is not practical.

In order to solve the above-mentioned problems, there has been a continuous demand for the development of cold and hot refrigerators that can simplify and increase the efficiency of the device while using an environmentally friendly energy source.

The present invention has been made to solve the conventional problems as described above, the present invention performs the refrigerating and warming function of the cold and cold storage by using an exothermic or endothermic reaction occurs when hydrogen is absorbed or released to the hydrogen storage alloy. By using environmentally friendly energy sources, and to provide a cold and cold storage using a hydrogen storage alloy that can simplify and increase the efficiency of the device.

1 is a rear perspective view of a cold / hot refrigerator schematically showing a heat exchange part and a duct structure of a cold / hot refrigerator according to an embodiment of the present invention;

2 and 3 is a schematic view showing the air flow direction and operation state during the heat exchange action according to the structure of the heat exchanger and the duct switching means of the heat exchanger shown in FIG.

Figure 4 is a front view of the door open state showing the air flow direction of the cold and hot storage during the switching operation of the duct switching means according to FIG.

5 is a cross-sectional view taken along line II of FIG. 4;

Figure 6 is a front view of the door open state showing the air flow direction of the cold and hot storage during the switching operation of the duct switching means according to FIG.

7 is a cross-sectional view taken along the line II-II of FIG. 6.

* Description of the symbols for the main parts of the drawings *

Body, 1a.

2 .... refrigerator, 3 ....

41..Heat supply duct, 42a, 42b..Heat return duct,

61..Cold air supply duct, 62a, 62b..Cold air return duct.

In order to achieve the above object, according to the present invention, a main body divided into a refrigerating compartment and a warming compartment, and a heat exchanger for discharging the air introduced from the refrigerating compartment and the heating compartment by cooling or heating and then discharged to the refrigerating compartment and the greenhouse compartment side; A cold air supply duct through which cold air is supplied from the heat exchange unit to the refrigerating chamber side, a pair of cold air return ducts through which air in the refrigerating chamber is returned to the heat exchange unit side, and a warm air supply duct through which the warm air is supplied from the heat exchange unit to the warming chamber side; Provided is a cold and cold storage using a hydrogen storage alloy, characterized in that the air in the warm room comprises a pair of warm air return duct returning to the heat exchange unit.

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

1 is a rear perspective view schematically illustrating a heat exchange part and a duct structure of a cold / cold storage room according to an exemplary embodiment of the present invention, wherein the cold / cold storage room according to the preferred embodiment of the present invention has a barrier (4) at the center of the main body (1). It is divided into a refrigerator compartment (2) and a heating compartment (3) having a predetermined space in the upper and lower portions, respectively, and the doors (2a, 3a) can be opened and closed on the front of the refrigerator compartment (2) and the heating compartment (3), respectively. Is installed.

The heat exchange part 100 is installed at an approximately center height of the rear wall 1a of the main body 1, and the air inside the refrigerating chamber 2 and the warm room 3 is sucked into the heat exchange part 100 to exchange heat. After this, the heat-exchanged air can be discharged to the refrigerating chamber 2 and the warming chamber 3 again.

In addition, a cold air supply duct 61 and air in the refrigerating chamber 2, which may supply cold air from the heat exchanging unit 100 to the refrigerating chamber 2, on the rear wall 1a based on the heat exchanger 100. The cold air return ducts 62a and 62b, which can be returned to the heat exchange unit 100 side, are respectively provided.

On the lower side of the rear wall 1a based on the heat exchange part 100, there is a warm air supply duct 41 and air in the warm side chamber 3, which can supply warm air from the heat exchange portion 100 to the warm side chamber 3. Warmer return ducts 42a and 42b, which can be returned to the heat exchange unit 100 side, are provided.

2 and 3 is a schematic view showing the air flow direction and the operating state during the heat exchange action according to the structure of the heat exchanger and the duct switching means of the heat exchanger shown in Figure 1, the operation of the heat exchanger 100 with reference to the drawings The structure and the air flow structure will be described schematically.

The heat exchange part 100 is provided with a hollow heat exchange chamber 20 inside the case 100a, and the first reactor 110 and the second reactor 120 forming a pair inside the heat exchange chamber 20 are provided. Each side is installed to face each other, the first and second reactors 110 and 120 are filled with hydrogen storage alloys, respectively, hydrogen is absorbed or released into each of the filled hydrogen storage alloys, one reactor generates heat and the other reactor. Alternates the endothermic reaction.

In addition, the hydrogen transfer pipe 145 is connected between the first and second reactors 110 and 120, and the pumping means 141 is installed on the hydrogen transfer pipe 145, thereby being pumped by the pumping force of the pumping means 141. It is possible to move the hydrogen between the hydrogen storage alloy filled in one reactor and the hydrogen storage alloy filled in the other reactor.

At this time, it is essential that the pumping means 141 is provided with valve means 142, such as a four-way valve, to selectively switch the moving direction of hydrogen transferred from one reactor to the other reactor under the control of the controller. to be.

The reason is to selectively switch the moving direction of hydrogen so that the first reactor 110 and the second reactor 120 alternately repeat the exothermic and endothermic reactions.

That is, by installing a temperature sensing means (not shown) on the adjacent sides of the first and second reactors 110 and 120, respectively, by detecting a temperature change in each of the reactors 110 and 120, to the temperature signal detected by the temperature sensing means. It is detected whether or not the hydrogenation reaction in each reactor by the end.

In addition, the temperature signal is applied to the control unit so that the direction of division of the aforementioned valve means 142 and the duct switching means (more specifically, the partition plate 150) described later can be controlled.

In addition, the pumping means 141 is preferably installed near the cold air outlet 101, the reason is due to the operating heat of the pumping means 141 by using the cold air discharged to the cold air outlet 101 side This is to prevent overheating.

Meanwhile, a pair of air inlets 131 and 132 are provided at adjacent sides of the first and second reactors 110 and 120 to allow air from the refrigerating chamber 2 and the warming chamber 3 to flow into the heat exchange unit 100. Therefore, when air in the refrigerating chamber 2 and the warming chamber 3 flows into the heat exchange chamber 20, heat exchange is performed while passing through the first and second reactors 110 and 120.

In addition, a cold air discharge port 101 through which cold air is discharged to the refrigerating chamber 2 is provided at an upper portion of the heat exchange part 100, and a cold air supply duct 61 is connected to an upper side of the cold air discharge port 101.

In addition, the cold air discharge port 101 is provided with a blowing means 102 rotatable by a rotational force generating means such as, for example, a motor 109, the refrigerator compartment 2 from the heat exchange chamber 20 by the operation of the blowing means. In addition to supplying cold air to the side, it is possible to return the air in the refrigerating chamber 2 side to the heat exchange chamber 20 side.

In addition, a lower portion of the heat exchange part 100 is provided with a warm air discharge port 105 through which warm air is discharged to the warm room chamber 3 side, and a warm air supply duct 41 is connected to the lower side of the warm air discharge port 105.

In addition, a blower means 106 is also provided at the warm air discharge port 105 to supply warm air from the heat exchange chamber 20 to the warmer room 3 side by the operation of the blower means, and to supply air to the warmer room 3 side. It becomes possible to return to the heat exchange chamber 20 side.

In addition, the flow direction of air introduced into the heat exchange chamber 20 through the first reactor 110 and the second reactor 120 through the inlets 131 and 132 inside the heat exchange chamber 20 of the heat exchange unit 100 is the refrigerating compartment. A duct switching means is provided which is switched under the control of the control unit so as to face the (2) side or the warming room 3 side.

Referring to the structure of the duct switching means in more detail as follows.

The duct switching means includes a partition plate 150 for separating and partitioning the inner region of the heat exchange chamber 20 in a diagonal direction so that the first reactor 110 and the second reactor 120 can maintain thermal insulation. A rotating shaft 151 for rotatably fixing the partition plate 150 in the heat exchange chamber 20 and a motor for applying rotational force to rotate the partition plate 150 about the rotation shaft 151, for example, a motor. And rotational force generating means such as 109 and the like.

In addition, although not shown in the drawings, the refrigerating chamber 2 and the heating chamber 3 sensed by the temperature sensing means by installing a temperature sensing means such as a temperature sensor, respectively, inside the refrigerating chamber 2 and the heating chamber 3. By applying a temperature signal of the control unit, by controlling the driving of the heat exchange unit 100 under the control of the control unit receiving the temperature signal, by supplying cool and warm air to the refrigerating chamber (2) and the warm room (3) side, The temperature inside the refrigerating chamber 2 and the warming chamber 3 can be maintained at a predetermined temperature desired by the user.

On the other hand, the cold air return duct (62a, 62b) and the warm air return duct (42a, 42b) is provided with flow path opening and closing means (63, 64, 43, 44), respectively, the flow path opening and closing means of the duct switching means And a plate-shaped damper (not shown) for blocking or opening the flow paths of the cold air return ducts 62a and 62b and the warm air return ducts 42a and 42b by rotating in accordance with the rotational force. It can comprise a rotation force generating means (not shown) to give.

Figure 4 is a front view of the door open state showing the air flow direction of the cold compartment during the switching operation of the duct switching means according to Figure 2, according to Figure 4, the discharge port provided in the refrigerating compartment 2 and the warm compartment 3 And the installation state of the inlet is shown, with reference to Figures 1 and 4 will be described the installation structure of the outlet and the inlet and each duct as follows.

As shown in the figure, the main body 1 in which the refrigerating chamber 2 and the warming chamber 3 are separated is insulated from the outside by an insulating material 5 such as polyurethane foam, for example, and the rear wall of the main body 1. The heat exchange part 100 is installed inside (1a).

At this time, the installation position of the heat exchange part 100 is not only inside the rear wall 1a, but also inside the barrier 4 which separates the upper and lower parts of the cold storage cabinet and the compartment 4 and the heating chamber 3 up and down. Of course it can be installed.

In addition, the cold air supply duct 61 for supplying cold air to the refrigerating chamber 2 side and the air in the refrigerating chamber 2 are returned to the heat exchange unit 100 side above the heat exchange unit 100 inside the rear wall 1a. The cold air return ducts 62a and 62b are connected.

In addition, under the heat exchanger 100 inside the rear wall 1a, a warm air supply duct 41 to which warm air is supplied from the heat exchanger 100 to the warmth chamber 2, and the air in the warmth chamber 2. Warm return duct (42a, 42b) is fed back to the heat exchange unit 100 side is connected.

One end of the cold air supply duct 61 and the warm air supply duct 41 is connected to the cold air outlet 101 and the hot air outlet 105 of the heat exchange unit 100, respectively, and the other end of the rear wall 1a of the body (1). And extends through the inside to communicate with the refrigerating chamber 2 and the warming chamber 3, respectively.

On the other hand, one end of the cold air return duct (62a, 62b) and the warm air return duct (42a, 42b) is connected to the air inlet (131, 132) of the heat exchanger 100, respectively, and the other end is the rear wall (1a) of the main body (1) And extends through the inside to communicate with the refrigerating chamber 2 and the warming chamber 3, respectively.

In addition, the cold air supply duct 61 is connected to a pair of cold air discharge ports 6a and 6b respectively provided at the upper ends of both sides of the cold air supply ducts 62a and 62b. The upper end is connected to the cold air suction inlets 7b and 7a provided in the lower part of the refrigerating compartment 2, respectively.

In addition, the lower end of the warmth supply duct 41 is branched so as to be connected to the pair of warm air discharge ports 8a and 8b provided in the lower portion of the warm room chamber 3, respectively, and the lower ends of the warmth return ducts 42a and 42b, respectively. Branched so as to be connected to the warm air intakes (9b, 9a) provided in the lower inside the warm room chamber (3).

Referring to Figures 2 to 7 the operation of the cold and cold storage using the present invention tank storage alloy made of the above-described configuration and the supply / return structure of the cold and warm.

According to the present invention, the refrigerating and refrigerating compartment may simultaneously perform the refrigerating function of the refrigerating compartment and the warming function of the refrigerating compartment.

When the cold or hot refrigerator is operated, the pumping means 141 is operated under the control of the controller to generate a pumping force.

Then, when the pumping force is generated by the operation of the pumping means 141, as the flow path of the valve means 142 is switched by the control of the controller, hydrogen is discharged from the hydrogen storage alloy inside the second reactor 120 Absorbed by the hydrogen storage alloy inside the first reactor 110, due to this, the endothermic reaction occurs in the second reactor 120, the exothermic reaction occurs in the first reactor (110).

In this case, the partition plate 150 is switched as shown in FIG. 2 under the control of the controller, and the first reactor 110 is in communication with the warmth supply duct 41 and the second reactor 120. Is in communication with the cold air supply duct 61 side.

When the flow path opening and closing means 64 and 43 are opened, and the blowing means 102 and 106 are operated under the control of the controller, the air flow paths indicated by arrows in FIGS. 2, 4 and 5, respectively, By the rotational force of the blowing means 106, the air in the warm room chamber 3 is sucked into the warm air intake 9b and flows into the air inlet 131 of the heat exchange part 100 through the warm air return duct 42a.

Subsequently, air introduced into the air inlet 131 and heat-exchanged with the first reactor 110 and heated with high temperature air is guided to the warm air outlet 105 by the partition plate 150.

Then, the air guided to the warm air discharge port 105 side is guided to the warmth supply duct 41 by the rotational force of the blowing means 106, and then discharged into the warm room chamber (3) through the warm air discharge ports (8a, 8b) do.

As described above, the air in the warm room chamber 3 is introduced into the heat exchange chamber 20 of the heat exchange unit 100 through the warm air return duct 42a, and then heat exchanges with the first reactor 110, and then the warm air supply duct ( By repeating the operation supplied to the inside of the heating chamber (3) through 41) it is possible to perform the warming function of the heating chamber (3).

On the other hand, the refrigerating function is performed in the refrigerating chamber 2 while the above-mentioned heating function of the warming chamber 3 is performed.

That is, the endothermic reaction occurs in the second reactor 120 while the exothermic reaction occurs in the first reactor 110. At this time, if the blowing means 102 operates under the control of the controller, the blowing means 102 Air of the refrigerating compartment 2 side is sucked into the cold air intake opening 7a by the rotational force of the air, and flows into the air inlet 132 side of the heat exchange unit 100 through the cold air return duct 62b.

The air in the refrigerating chamber 2 introduced into the air inlet 132 is cooled with low temperature air while being heat-exchanged with the second reactor 120, and is guided to the cold air outlet 101 by the partition plate 150.

Subsequently, the air guided to the cold air discharge port 101 side is guided to the cold air supply duct 61 by the rotational force of the blowing means 102, and then discharged into the refrigerating chamber 2 through the cold air discharge ports 6a and 6b.

As described above, the air in the refrigerating chamber 2 is introduced into the heat exchange chamber 20 of the heat exchange part 100 through the cold air return duct 62b, and is cooled by being heat-exchanged with the second reactor 120 and then the cold air supply duct 61. By repeating the operation supplied to the inside of the refrigerating compartment 2 through) it is possible to perform the refrigerating function of the refrigerating compartment (2).

As described above, during the refrigerating and warming functions of the refrigerating chamber 2 and the warming chamber 3, the hydrogen storage alloy inside the second reactor 120 is transferred to the hydrogen storage alloy inside the first reactor 110. When the hydrogen transfer is completed, no further hydrogenation reaction proceeds, and when the heat exchange reaction in each reactor 110 or 120 is slowed down, the temperature sensing means (not shown) installed in the vicinity of each reactor 110 and 120 is in such a state. Is sensed as a change in temperature and applied to the controller.

Then, the control unit receives this signal to switch the flow path of the valve means 142 to move the hydrogen to move the hydrogen from the hydrogen storage alloy inside the first reactor 110 to the hydrogen storage alloy inside the second reactor (120). In addition to switching the direction, as shown in FIG. 3, the partition direction of the partition plate 150 is switched.

Accordingly, an endothermic reaction occurs in the first reactor 110, and an exothermic reaction occurs in the second reactor 120, and the flow path opening and closing means 63, 44 is opened under the control of the control unit, and each blowing means 102, 106 is performed. 3), the air flow paths indicated by arrows in Figs. 3, 5, and 7, respectively, by the rotational force of the respective air blowing means, the air in the warm room chamber 3 is heated intake 9a and warm return duct 42b. The heat exchange chamber 20 is introduced into the second reactor 120 side of the heat exchange chamber 20, and is then heat-exchanged with high-temperature air, and then discharged into the warming chamber 3, and the air in the refrigerating chamber 2 is the cold air inlet 7b and the cold air return duct. Through 62a, the first reactor 110 is introduced into the heat exchange chamber 20, and the heat exchanged with the low temperature air is repeated to discharge the refrigerator compartment 2.

As described above, when the hydrogenation reaction of the hydrogen storage alloy inside the reactors 110 and 120 is terminated, the endothermic reaction and the exothermic reaction continuously occur alternately in each reactor as the direction of movement of hydrogen is switched under the control of the controller. By switching the partition direction of the partition plate 150 by the control of the control unit according to the endothermic or exothermic state of each reactor, the refrigerating function and the warming function are continuously performed in the refrigerating chamber 2 and the warming chamber 3.

On the other hand, when the internal temperature of the refrigerating chamber (2) and the warm room (3) reaches an appropriate temperature by continuously performing the refrigerating function and the warming function in the refrigerating compartment (2) and the heating compartment (3), the refrigerator compartment (2) and warming Temperature sensing means respectively installed inside the room 3 detects this and applies such a signal to the control unit, whereby the operation of the pumping means 141 is turned off by the control of the control unit and the operation of the blowing means 102 and 106. Will be turned off.

In addition, after the operation of the pumping means 141 and the blowing means 102 and 106 is turned off, after a predetermined time passes, the temperature of the refrigerating chamber 2 rises above a predetermined temperature or the temperature of the warming chamber 3 is When it is detected that the temperature is lowered below the set temperature, the operation of the pumping means 141 and the blowing means 102, 106 by the control of the control unit (ON) to turn on again the refrigerating function of the refrigerating compartment (2) and the heating compartment (3) The operation of performing the warming function is repeated.

On the other hand, the embodiment of the present invention as described above is configured to help the understanding of the present invention is not limited only to the above-described embodiment, various modifications are possible within the scope without departing from the spirit of the present invention.

As described in detail above, the present invention has the following effects.

First, by performing the refrigerating and warming function by using the exothermic and endothermic reactions of the hydrogen storage alloy and hydrogen, environmentally friendly clean energy is avoided by eliminating general refrigerants that cause environmental pollution such as global warming and ozone layer destruction. Efficient use of the circle becomes possible.

Second, since the calorific value and endothermic amount generated when hydrogen is absorbed or released from the hydrogen storage alloy are high and the reaction rate is high, refrigeration and The warming speed is fast.

Third, since the pair of heat exchangers each have a refrigerating and warming function, the structure is not complicated, such as a cold storage using a refrigerant cycle, and the volume of the system can be reduced.

Fourth, in the case of a cold or cold storage using a normal refrigerant, there is a noise due to the flow and phase change of the refrigerant during the system operation, but according to the cold and cold storage according to the present invention almost no noise occurs during the movement of hydrogen space quiet operation is required It can be used at.

Claims (10)

The main body divided into a refrigerator compartment and a warmhouse, A heat exchange part configured to heat-exchange the air introduced from the refrigerating compartment and the warming compartment, and to cool or heat the air, and then discharge the air into the refrigerating compartment and the warming chamber side; A cold air supply duct through which cold air is supplied to the refrigerating chamber from the heat exchange unit; A pair of cold air return ducts through which air in the refrigerating chamber is returned to the heat exchange part; A warmth supply duct through which the warmth is supplied from the heat exchanger to the warmth chamber, Cold storage cabinet using a hydrogen storage alloy, characterized in that it comprises a pair of warm air return duct returning air to the heat exchange unit side. The method of claim 1, The heat exchange unit, A case having a hollow heat exchange chamber therein; It is installed in the heat exchange chamber, the inside is filled with a hydrogen storage alloy, each of the first to form a pair to alternately perform the reaction that one side is exothermic and the other side is endothermic by absorbing or releasing hydrogen in each hydrogen storage alloy , A second reactor; A hydrogen transfer tube connected between the first and second reactors to allow the transfer of hydrogen between the hydrogen storage alloys filled in the first and second reactors; Pumping means for discharging hydrogen absorbed by the hydrogen storage alloy inside the reactor through one side of the hydrogen transfer pipe and forcing the same to the other reactor; An air inlet for introducing air in the refrigerating chamber and the heating compartment to the inside of the heat exchange chamber via the first and second reactors, and a cold / hot air outlet for discharging air inside the heat exchange chamber to the refrigerating chamber and the warming chamber; Duct switching means installed between the first and second reactors and switched so that the flow direction of air passing through each reactor is directed to the refrigerating chamber side or the warming chamber side under the control of the controller; And a blowing means for forcibly drawing a refrigerating chamber and a warm room air into the heat exchange chamber to heat exchange each other while passing through the first and second reactors, and forcibly discharging the air to the refrigerating room and the warm room side. Cold storage using hydrogen storage alloy. The method of claim 2, The duct switching means may include a partition plate for separating and partitioning the inner region of the heat exchange chamber so that the first reactor and the second reactor maintain thermal insulation. A rotating shaft rotatably fixing the partition plate in the heat exchange chamber; Cold storage cabinet using a hydrogen storage alloy, characterized in that it comprises a rotational force generating means for imparting a rotational force to rotate the partition plate about the rotational axis. The method of claim 2, Hydrogen storage, characterized in that the temperature sensing means is installed on the adjacent sides of the first and second reactors to control the partition direction of the duct switching means according to the control of the control unit by the temperature signal sensed by the temperature sensing means. Hot and cold oven using alloy. The method of claim 2, The blowing means is a cold and hot storage using a hydrogen storage alloy, characterized in that each installed on the cold air outlet and the hot air outlet. The method of claim 2, The pumping means is cold and cold storage using a hydrogen storage alloy, characterized in that installed near the cold air outlet. The method of claim 1, One end of the cold air supply duct and the warm air supply duct are respectively connected to the cold air outlet and the hot air outlet of the heat exchange part, and the other end extends through the rear wall of the main body to communicate with the refrigerating chamber and the warming chamber, respectively. One end of the return duct is connected to the air inlet of the heat exchange portion, respectively, the other end extends through the inside of the rear wall of the main body of the cold storage chamber using a hydrogen storage alloy, characterized in that communicating with the refrigerating chamber and the heating chamber, respectively. The method of claim 7, wherein The cold air storage duct using a hydrogen storage alloy, characterized in that the flow path opening and closing means are respectively installed in the cold air return duct and the warm air return duct. The method of claim 8, The flow path opening and closing means is a plate-shaped damper for blocking or opening the flow path of the cold air return duct and the warm air return duct by being rotated in accordance with the switching state of the duct switching means; Cold storage cabinet using a hydrogen storage alloy, characterized in that consisting of a rotational force generating means for imparting a rotational force to rotate the damper. The method of claim 1, A temperature sensing means is additionally installed inside the refrigerating compartment and the warming compartment, respectively, to drive the heat exchanger under the control of a control unit by a temperature signal sensed by the temperature sensing means to supply cold and warmth to the refrigerating compartment and the warm compartment. Cold storage using hydrogen storage alloy.