KR20120024189A - A cold thermal storage system - Google Patents

Abstract

PURPOSE: A cold storage system is provided to keep cold air of cooling water in an evaporator and a storage tank to prevent temperature of discharge air from drastically increasing when an engine stops, thereby passengers feel comfortable. CONSTITUTION: A cold storage system comprises an air conditioning case(110), an evaporator(101), a heater core(102), a cooling water passage(145), a circulating passage(150), and a storage tank(140). The cooling water passage is formed in the evaporator. The circulating passage connects the heater core and the evaporator to make cooling water, circulating the heater core, circulate through the cooling water passage. The storage tank is connected to the circulating passage for circulating the cooling water, passing through the evaporator, thereby cold storage is implemented. The storage tank comprises a thermal storage material, which has a specific gravity bigger than the cooling water and uses latent heat. The cooling water directly contacts to the thermal storage material to exchange heat.

Description

A cold storage system {A COLD THERMAL STORAGE SYSTEM}

The present invention relates to a cold storage system, and more particularly, to a cold storage system in which an efficient system is implemented so as to continue the cold storage or heat storage even when the vehicle is stopped.

In general, the vehicle air conditioner is a vehicle interior that is installed for the purpose of securing the driver's front and rear visibility by removing frost and the like that are cooled, heated, or worn on the windshield. Such a vehicle air conditioner is generally equipped with a heating device and a cooling device at the same time to selectively introduce the outside air or bet and then heat or cool the air to blow into the interior of the vehicle to cool, heat or ventilate the interior of the vehicle.

According to the independent structure of the blower unit, the evaporator unit, and the heater core unit, the air conditioner includes a three piece type in which the three units are independently provided, and an evaporator unit and the heater core unit in the air conditioning case. The semi-center type, which is built in and the blower unit is provided as a separate unit, and the center mounting type, in which all three units are built in the air conditioning case, are distinguished.

1 shows a semi-center type air conditioner, wherein the air conditioner 1 includes an air conditioner case 10, a blower (not shown), an evaporator 2, a heater core 3, and a temperature control door ( 15).

The air conditioning case 10 has an air inlet 11 formed at the inlet side, and the defrost vent 12a, the face vent 12b, and the floor vent 12c, 12d whose openings are controlled by the mode door 16 at the outlet side, respectively. ) Is installed. The blower is connected to the air inlet 11 of the air conditioning case 10 to blow the inside or outside air. The evaporator 2 and the heater core 3 are built in the air conditioning case 10. The temperature control door 15 is installed between the evaporator 2 and the heater core 3 and the cold air passage P1 bypassing the heater core 3 and the warm air passage passing through the heater core 3 ( Adjust the opening of P2).

In addition, a partition wall 17 is formed between the rear side of the heater core 3 and the floor vents 12c and 12d to partition each other. Here, the floor vents 12c and 12d are separated into a front seat vent 12c and a rear seat vent 12d.

According to the vehicle air conditioner 1 configured as described above, when the maximum cooling mode is operated, the temperature control door 15 opens the cold air passage P1 and closes the hot air passage P2. Accordingly, the air blown by the blower not shown is exchanged with the refrigerant flowing through the evaporator 2 while passing through the evaporator 2 to be changed into cold, and then the mixing chamber (Mixing) through the cold air passage (P1) Chamber (MC), and is discharged to the vehicle interior through the vent (12a ~ 12d) is opened in accordance with the predetermined air conditioning mode, thereby cooling the vehicle interior.

In addition, when the maximum heating mode is activated, the temperature control door 15 closes the cold air passage P1 and opens the hot air passage P2. Accordingly, the air blown by the blower not shown is heat exchanged with the coolant flowing through the inside of the heater core 3 while passing through the heater core 3 through the hot air passage (P2) after passing through the evaporator (2) After changing to warmth, the liquid flows toward the mixing chamber MC, and is then discharged into the vehicle interior through the vents 12a to 12d opened according to a predetermined air conditioning mode, thereby heating the vehicle interior.

When the mixing mode is activated, the temperature control door 15 rotates to a neutral position to open both the cold air passage P1 and the hot air passage P2 with respect to the mixing chamber MC. Therefore, after the cool air passed through the evaporator 2 and the warm air passed through the heater core 3 are mixed by flowing toward the mixing chamber MC, the vents 12a to 12d are opened to the vehicle interior through the air conditioning mode. Discharged.

On the other hand, in recent years, in order to protect the environment and improve fuel efficiency of a vehicle engine, a vehicle (eg, a vehicle that runs economically, such as a hybrid vehicle) that automatically stops the engine at a stop such as waiting for a traffic signal has been put into practical use.

However, the compressor (not shown) constituting the refrigeration cycle in the air conditioning apparatus 1 is generally driven by a vehicle engine. In the above-described economical vehicle, the compressor is also stopped every time the engine is stopped, and the air conditioner is turned off. In the summer, the temperature of the cooling evaporator 2 rises, and the temperature of the air discharged into the vehicle interior also rises sharply, resulting in discomfort to the occupants.

In order to solve the above problem, as illustrated in FIG. 1, the cold storage heat exchanger 4 is installed at the rear side of the evaporator 2. In this case, the cold storage heat exchanger may be used when the air conditioner is turned off due to engine stop (compressor stop). There was a limit to preventing the temperature rise because it relieves the discharge temperature rise depending only on 4).

In addition, since the cold storage heat exchanger 4 accumulates only by cold air passing through the evaporator 2, there is a problem that rapid cold storage is difficult, and there is a problem that the cold storage cannot be continued when the engine is stopped.

In addition, when the engine is stopped in winter, when there is no device to compensate for the heating performance, the coolant circulated to the heater core 3 also stops when the engine is stopped. There is a problem of descent and discomfort to the occupants.

In order to solve such a conventional problem, an object of the present invention is to provide a cold storage system that can prevent the discomfort of the occupant by preventing the temperature of the air discharged from the air conditioning case to change rapidly even when the engine is stopped in the cooling mode. It is done.

The air-cooling system according to the present invention comprises an air conditioner case, an evaporator installed upstream of the air flow direction inside the air conditioning case and a heater core installed on the downstream side and a heater core for circulating engine coolant. As provided in, the cooling water flow path formed in the evaporator, and the circulation flow path for interconnecting the heater core and the evaporator so that the cooling water circulating the heater core circulates the cooling water flow path.

In addition, the air-cooling system according to another aspect of the present invention includes an air conditioner case, an evaporator installed upstream of the air flow direction inside the air conditioner case and a heater core installed at a downstream side thereof to circulate the engine coolant. And a cooling water flow path formed in the evaporator, a circulation flow path interconnecting the heater core and the evaporator so that the coolant circulating the heater core circulates through the cooling water flow path, and the evaporator. And a storage tank connected to the circulation passage so as to circulate the cooling water that passes.

In the cold storage system according to the present invention, by keeping the cool cold of the coolant in the evaporator and the storage tank, the temperature of the air discharged from the air conditioning case is prevented from rising sharply even when the engine is stopped to reduce the discomfort of the occupant, for a certain time Is a very useful invention that can not only improve the cooling effect, but also effectively keep the temperature of the air cool after stopping the engine.

In addition, the storage tank can be implemented by a direct contact heat exchange system using the difference in specific gravity between the fruit oil and the heat storage material and the latent heat of the heat storage material, thereby obtaining a more efficient heat storage effect.

In addition, by installing a temperature control door between the evaporator and the heater core, more precise temperature control is possible, and the cold air flow path is closed when the engine is stopped to allow all air to pass through the heater core, thereby maximizing the use of cold storage and heat storage. It can prevent sudden temperature change.

In addition, the bypass flow passage is configured to quickly circulate the cold coolant to the storage tank to quickly store the heat storage cold storage tank.

In addition, by installing an additional heat exchanger on the outlet side of the evaporator it is possible to store the cold storage heat in the storage tank more quickly.

1 is a cross-sectional view showing a conventional vehicle air conditioner,
Figure 2 shows a schematic configuration of a cold storage system according to the present invention,
3 is a cross-sectional view showing a storage tank of a heat storage system according to the present invention,
4 is a cross-sectional view showing a storage tank of a cold storage system according to a modification of FIG.
5 is a view showing a case in which a bypass door is installed without the temperature control door in the heat storage system according to the present invention;
6 is a perspective view of an evaporator according to the invention,
Figure 7 shows the cooling mode in the cold storage system according to the present invention,
8 is a view showing a cooling mode when the engine is stopped in the heat storage system according to the present invention,
9 illustrates a schematic configuration of a cold storage system according to another embodiment of the present invention,
10 shows a schematic configuration of a cold storage system according to another embodiment of the present invention,
FIG. 11 is a perspective view illustrating an evaporator and an auxiliary heat exchanger according to the embodiment of FIG. 10.

Hereinafter, the technical configuration of the heat storage system according to the accompanying drawings in detail.

Figure 2 shows a schematic configuration of a cold storage system according to the present invention, Figure 3 is a cross-sectional view showing a storage tank of the cold storage system according to the present invention, Figure 4 is a storage of the cold storage system according to a modification of FIG. 5 is a cross-sectional view showing a tank, and FIG. 5 is a view illustrating a case in which a bypass door is installed without a temperature control door according to the present invention, FIG. 6 is a perspective view of an evaporator according to the present invention, and FIG. The cooling mode in the cold storage system according to the present invention is shown, and FIG. 8 shows the cooling mode when the engine is stopped in the cold storage system according to the present invention.

As shown, the air-cooling system according to the present invention, the air inlet is formed on the inlet side and the plurality of air outlets are formed on the outlet side, and the air inlet is formed in the air passage communicating the air inlet and the plurality of air outlets ( 110 and an evaporator 101 installed upstream of the air flow direction on the air passage inside the air conditioning case 110 and a heater core 102 installed on the downstream side thereof to circulate the engine coolant. It is provided in a vehicle air conditioning apparatus comprising.

That is, the storage cooling system is a circulation that interconnects the heater core 102 and the evaporator 101 so that the cooling water passage 145 and the cooling water circulating the heater core 102 circulates the cooling water passage 145. The flow path 150 is included.

In addition, an air inlet of the air conditioning case 110 is provided with a blowing fan 184 for blowing inside or outside air.

The plurality of air discharge ports formed at the outlet side of the air conditioning case 110 may include a defrost vent 112a for discharging air toward the windshield of the vehicle and a face vent for discharging air toward the face of the front occupant. 112b and a floor vent 112c for discharging air toward the occupant's foot are formed.

In addition, the defrost vent 112a, the face vent 112b, and the floor vent 112c are opened and closed by the mode door 113, respectively.

In the drawings, only the case in which the center pivot type mode door 113 in which the plates on both sides of the rotating shaft are rotated is installed, but various door shapes may be installed.

In addition, the mode doors 113 and the temperature control door 130 to be described below are directly driven through an actuator (not shown) installed on the outer surface of the air conditioning case 110 or a cam driven by an actuator (not shown). C) or lever (not shown) to rotate.

In addition, the refrigerant pipe 101 is connected to the evaporator 101 to circulate the refrigerant. The refrigerant supplied to the evaporator 101 through the condenser 182 and the expansion valve 183 flows into the inlet pipe 193 of the evaporator 101, circulates through the tube 192, and then through the outlet pipe 194. Discharged to 181.

In the evaporator 101, a cooling water flow path 145 is formed. The cooling water channel 145 is formed on the core 196 side in the evaporator 101. The core 196 is formed between the tubes 192 of the evaporator 101. In addition, a circulation flow path 150 is connected to the cooling water flow path 145, and the cooling water circulated through the heater core 102 circulates through the circulation flow path 150 and the cooling water flow path 145. That is, the circulation passage 150 performs the function of interconnecting the heater core 102 and the evaporator 101 so that the coolant of the engine 185 can be circulated to the evaporator 101.

In the cooling mode, the air cooled through the evaporator 101 cools the engine coolant circulating through the heater core 102 while passing through the heater core 102, and the coolant cools for a predetermined time even when the engine is stopped. Keep it.

Due to the configuration of the present invention, the cooling water is maintained by circulating the evaporator 101 through the circulation flow path 150 and the cooling water flow path 145 to maintain the cool air circulating the heater core 102 when the engine is stopped, Cooling water circulating through the evaporator 101 through the circulation passage 150 and the cooling water passage 145 may prevent a sudden temperature rise of the evaporator 101, thereby reducing a phenomenon of discomfort to a vehicle occupant.

In addition, a storage tank 140 through which the coolant passed through the evaporator 101 is circulated on the circulation passage 150. The storage tank 140 performs a cooling function or a heat storage function, and when the engine is stopped, circulates the evaporator 101 through the circulation flow path 150 and the cooling water flow path 145 to more efficiently accumulate the cooling water having a cooling function. Will be

The storage tank 140 includes a tank case 142, a heat storage material 141, a supply part 144, and a recovery part 143.

The heat storage material 141 is accommodated in the tank case 142. The upper and lower portions of the heat storage material 141 is formed to separate the fruit oil up and down, in this case, the fruit oil acts as a heat storage medium, may be water, glycol, etc. may be an engine cooling water flowing through the circulation passage 150. In addition, the heat storage material 141 is preferably adopted to have a specific gravity larger than that of the cooling water.

As a result, the heat storage material 141 is in direct contact with the cooling water, thereby performing heat exchange due to the difference in specific gravity between the cooling water and the heat storage material 141. In this case, the supply unit 144 supplies the cooling water to the upper portion of the heat storage material 141, and the recovery unit 143 functions to recover the cooling water under the heat storage material 141. As such, by forming the inlet of the coolant, which is the axial cooling medium, on the upper end of the storage tank 140, the temperature of the overall storage tank 140 is uniformed due to the difference in density, and the low temperature in the storage tank 140 is reduced to the heater core ( It is possible to enhance the heat storage effect by letting out to 102).

The heat storage material 141 may be adopted and used in paraffin series, calcium chloride, sodium acetate, magnesium chloride, mannitol, and the like, and may be appropriately adopted and used according to a system.

On the other hand, as shown in Figure 4, the heat storage material 141 may be composed of a plurality of stacked with different melting points. That is, the heat storage material 141 may be composed of a first heat storage material 141a and a second heat storage material 141b. In this case, the first heat storage material 141a is positioned above the second heat storage material 141b, and the melting point of the first heat storage material 141a is higher than that of the second heat storage material 141b. As described above, since the heat storage material having a lower melting point is disposed toward the lower portion, heat storage can be performed by a difference in density of the heat storage material, so that the temperature in the tank can be stably obtained.

In addition, the outlet inlet may be formed in each layer of the plurality of heat storage materials 141 so as to use heat storage cooling. Therefore, when the cooling effect is required, it is possible to use sequential cooling heat through each outlet.

In addition, the heater core 102 has a supply pipe 103 for supplying engine coolant to the heater core 102 and a discharge pipe 104 for discharging the cooling water passing through the heater core 102 to the engine side. Is connected.

In addition, on the supply pipe 103 and the discharge pipe 104 is provided with a flow control valve 120 for controlling the cooling water supplied to the heater core (102).

Accordingly, in the heating mode, the hot cooling water heated and supplied from the engine by opening the supply pipe 103 and the discharge pipe 104 through the flow control valve 120 to the heater core 102 through the supply pipe 103. The hot coolant introduced into the heater core 102 heats the air passing through the heater core 102 and then returns to the engine through the discharge pipe 104.

In the cooling mode, the supply pipe 103 and the discharge pipe 104 are closed through the flow control valve 120 so that the hot cooling water heated and supplied from the engine 185 does not flow into the heater core 102 and is bypassed. To return to the engine. At this time, the cooling water filled in the heater core 102 does not flow but is stagnant.

As such, the heating control is performed through the flow control valve 120 to supply the hot cooling water to the heater core 102 in the heating mode, and to block the cooling water supplied to the heater core 102 in the cooling mode. .

In addition, a circulation pump 105 is installed on the circulation passage 150 between the heater core 102 and the evaporator 101. The circulation pump 105 circulates the cooling water of the heater core 102 to the circulation passage 150 when the flow control valve 120 blocks the cooling water supplied to the heater core 102.

That is, when the flow control valve 120 cuts off the coolant supplied to the heater core 102, the flow control valve 120 is disconnected from the engine 185 side and the heater core 102, the evaporator 101, and the storage tank 140. A closed circuit circulating only) is made, and the circulation pump 105 circulates the cooling water along this closed circuit.

In the drawing, the circulation pump 105 is installed on the circulation passage 150 between the heater core 102 and the evaporator 101. However, the circulation pump 105 may be installed anywhere where the cooling water can be circulated along the closed circuit described above.

In addition, between the evaporator 101 and the heater core 102 in the air conditioning case 110, the cold air passage P1 bypassing the heater core 102 and the warm air passage passing through the heater core 102. By adjusting the opening degree of (P2), a temperature control door 130 for adjusting the temperature by adjusting the amount of cold air and hot air is installed.

Therefore, the temperature control door 130 can be finely controlled because the amount of mixing the cold air and warm air is more fine temperature control is possible.

In addition, when the engine is stopped, the temperature control door 130 operates to close the cold wind flow path P1, so that all air passing through the evaporator 101 passes through the heater core 102, thereby maximizing the heat storage function. This can prevent sudden temperature changes.

That is, when the engine is stopped in the cooling mode, since the coolant stored in the storage tank 140 circulates through the heater core 102 and the evaporator 101, all the air passing through the evaporator 101 passes through the heater core 102. While being coldly cooled to maximize the use of cold storage and to prevent a sudden temperature change of the air discharged from the air conditioning case (110).

In this way, through the one temperature control door 130 to close the cold air flow path (P1) for fine temperature control and the engine stops, all the air passes through the heater core (102) at the same time.

In addition, the temperature control door 130 opens both the cold air flow passage (P1) and the hot air flow passage (P2) in the cooling mode, that is, the cold air flow passage (P1) and the first through the temperature control door 130 in the initial cooling mode. When the hot air flow passage P2 is opened, some of the air cooled in the evaporator 101 passes through the heater core 102, but some passes through the heater core 102 through the cold air passage, thereby improving the maximum cooling efficiency. can do.

On the other hand, the temperature control door 130 opens both the cold air flow passage (P1) and the hot air flow passage (P2) only in the cooling mode while the engine is running, and when the engine is stopped in the heating mode and cooling mode during the engine operation The cold air flow passage (P1) is closed.

In addition, the temperature control door 130 may be configured in a flat type as shown in FIG. 2, and although not shown in the drawing, may also be configured as a dome type or a sliding type.

5, the temperature control door 130 may be omitted. When the temperature control door 130 is omitted, it is preferable to install the bypass door 160 in the cold air flow passage P1 bypassing the heater core 102.

The bypass door 160 opens the cold air flow path P1 only in the cooling mode while the engine is running, and opens the cold air flow path P1 when the engine is stopped in the heating mode and the cooling mode while the engine is running. Will be closed.

Meanwhile, when the temperature control door 130 is omitted as shown in FIG. 5, the temperature may be adjusted by adjusting the amount of cooling water supplied to the heater core 102 through the flow control valve 120.

Hereinafter, the operation of the heat storage system according to the present invention will be described.

end. In the cooling mode (see Fig. 7),

In the cooling mode, the flow control valve 120 completely blocks the cooling water supplied to the heater core 102, and the temperature control door 130 opens both the cold air flow path P1 and the hot air flow path P2. do.

In addition, the circulation pump 105 is operated.

Therefore, the air introduced through the air inlet of the air conditioning case 110 by the blower is cooled in the process of passing through the evaporator 101, some of the cold air is the heater core 102 through the cold air flow path (P1). Bypassing, and part is passed through the heater core 102 through the hot air flow path (P2), it is discharged into the cabin through the air discharge port opened by the mode door 113 in accordance with the air conditioning mode is cooled.

As the cold air cooled while passing through the evaporator 101 passes through the heater core 102, the coolant in the heater core 102 is cooled, and the coolant is cooled.

At this time, the cooling water is circulated by the circulation pump 105 to circulate the evaporator 101 through the circulation passage 150 and the cooling water passage 145, so that the cold cold air does not suddenly rise in temperature and maintains the cold air more continuously.

In addition, as the coolant is circulated to the storage tank 140 by the circulation pump 105, the storage tank 140 stores the cold air.

I. When the engine stops during the cooling mode (see Fig. 8),

When the engine of the vehicle is stopped while waiting for a signal or stops while driving in the cooling mode, the compressor is stopped and the air conditioner is turned off. At this time, since the temperature of the evaporator 101 rises, the air passing through the evaporator 101 Although the temperature may rise rapidly, the cooling water cooled in the cooling mode flows through the cooling water flow passage 145 formed in the evaporator 101 through the circulation flow passage 150 to naturally mitigate the sudden temperature rise of the evaporator 101.

In addition, in this case, as shown in FIG. 8, the cold air flow passage P1 is closed through the temperature control door 130 so that the entire air passing through the evaporator 101 passes through the heater core 102. At this time, the circulation pump 105 continues to operate to circulate the cold coolant stored in the storage tank 140 to the heater core 102 and the evaporator 101.

Therefore, since the temperature of the air rising while passing through the evaporator 101 is lowered again by the cool cooling water in the heater core 102, it is possible to prevent the temperature of the air discharged into the vehicle interior from rising sharply, thereby occupying the occupant. You can prevent the discomfort of.

On the other hand, Figure 9 shows a schematic configuration of a cold storage system according to another embodiment of the present invention.

As shown in FIG. 9, the bypass passage 151 is further provided on the circulation passage 150. The bypass flow path 151 performs a function of rapidly circulating the cooling water stored in the evaporator 101 toward the storage tank 140.

The bypass passage 151 may be branched between the cooling water outlet of the heater core 102 and the circulation pump 105 to be connected to the cooling water outlet side of the storage tank 140. In this case, the three-way valve 152 may be installed at a point where the bypass passage 151 branches on the circulation passage 150.

In addition, FIG. 10 illustrates a schematic configuration of a cold storage system according to another embodiment of the present invention, and FIG. 11 is a perspective view illustrating an evaporator and an auxiliary heat exchanger according to the embodiment of FIG. 10.

As shown in FIGS. 10 and 11, an external heat exchanger 210 is further provided outside the evaporator 101 to heat-exchange the coolant flowing through the circulation passage 150 and the refrigerant flowing through the evaporator 101. do.

In this case, the auxiliary heat exchanger 210 is formed on the refrigerant outlet pipe 194 located between the inlet of the compressor 181 and the outlet of the evaporator 101. The auxiliary heat exchanger 210 may be implemented in the form of a plate heat exchanger.

As a result, by using the outlet pipe 194 of the evaporator 101, by storing heat exchange between the refrigerant and the cooling water, which is the cool storage medium, the cool storage heat can be quickly stored in the storage tank 140.

As described above, in the present invention, the circulating flow path 150 forms the cooling water flow path 145 in the evaporator 101 and the cooling water circulating the heater core 102 circulates through the cooling water flow path 145. A semi-center type configuration in which the heater core 102 and the evaporator 101 are interconnected and installed so that the storage tank 140 is connected to the circulation passage 150 to circulate the cooling water passing through the evaporator 101 is circulated. Although only the case where the air conditioner is applied to the air conditioner has been described, the present invention is not limited thereto. The same effect may be applied to all air conditioners such as a center mounting type air conditioner, a three-piece type air conditioner, and a left and right independent air conditioner. You can get it.

101: evaporator 102: heater core
103: supply pipe 104: discharge pipe
110: air conditioning case 112a: defrost vent
112b: face vent 112c: floor vent
113: mode door 120: flow control valve
130: temperature control door 140: storage tank
145: cooling water flow path 150: circulation flow path
151: bypass euro 160: bypass door
210: auxiliary heat exchanger

Claims (13)

An air conditioner case 110, an evaporator 101 installed at an upstream side of the air flow direction inside the air conditioner case 110, and a heater core 102 installed at a downstream side thereof to circulate engine coolant. In the cold storage system
A cooling water channel 145 formed in the evaporator 101;
A circulation passage 150 interconnecting the heater core 102 and the evaporator 101 so that the coolant circulating through the heater core 102 circulates through the cooling water passage 145; And
It is connected to the circulation passage 150 to circulate the cooling water passed through the evaporator 101 to perform a heat storage function, and has a heat storage material 141 having a specific gravity greater than that of the cooling water and using latent heat, and the heat storage material 141. And a storage tank (140) formed to be separated above and below) to perform heat exchange by directly contacting the coolant with the heat storage material (141). An air conditioner case 110, an evaporator 101 installed at an upstream side of the air flow direction inside the air conditioner case 110, and a heater core 102 installed at a downstream side thereof to circulate engine coolant. In the cold storage system
A cooling water channel 145 formed in the evaporator 101;
A circulation passage 150 interconnecting the heater core 102 and the evaporator 101 so that the coolant circulating through the heater core 102 circulates through the cooling water passage 145; And
The storage tank 140 is connected to the circulation passage 150 so as to circulate the cooling water passing through the evaporator 101 and performs a heat storage cooling function, and has a plurality of heat storage materials 141 stacked with different melting points. Refrigerant cooling system comprising a. The method according to claim 1 or 2,
The storage tank 140 is:
A tank case 142 accommodating the heat storage material 141 therein;
A supply unit 144 for supplying cooling water to an upper portion of the heat storage material 141; And
And a recovery unit (143) for recovering the cooling water in the lower portion of the heat storage material (141). The method according to claim 1 or 2,
The cooling water passage (145) is a cold storage system, characterized in that formed in the core (196) formed in the evaporator (101). The method according to claim 1 or 2,
Between the evaporator 101 and the heater core 102 inside the air conditioning case 110, a cold air flow passage P1 bypassing the heater core 102 and a warm air flow passage P2 passing through the heater core 102. Refrigerant system, characterized in that the temperature control door 130 to adjust the opening degree of the installed. The method according to claim 1 or 2,
A cold storage system, characterized in that the bypass door 160 is installed in the cold air flow passage (P1) bypassing the heater core (102). The method according to claim 1 or 2,
The supply pipe 103 for supplying coolant to the heater core 102 and the discharge pipe 104 for discharging the coolant passing through the heater core 102 to the engine side are supplied to the heater core 102. A cold storage system, characterized in that the flow control valve 120 for controlling the cooling water is provided. The method according to claim 7,
When the flow control valve 120 blocks the coolant supplied to the heater core 102, the flow pump 105 for circulating the coolant of the heater core 102 to the circulation passage 150 is further provided. Refrigerant cooling system. The method according to claim 8,
And the circulation pump (105) is disposed on a circulation passage (150) between the heater core (102) and the evaporator (101). The method according to claim 1 or 2,
And a bypass passage (151) on the circulation passage (150) for quickly circulating the cooling water stored in the evaporator (101) to the storage tank (140) side. The method according to claim 1 or 2,
Outside the evaporator (101), the refrigeration system further comprises an auxiliary heat exchanger (210) for heat exchange between the cooling water flowing through the circulation passage (150) and the refrigerant flowing through the evaporator (101). The method of claim 11,
And the auxiliary heat exchanger (210) is formed on the refrigerant outlet pipe (194) located between the inlet of the compressor (181) and the outlet of the evaporator (101). The method according to claim 2,
Each layer of the plurality of heat storage material (141), the heat storage cooling system, characterized in that the outlet inlet is formed so as to use the heat storage cooling.

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