JPH06211036A - Cooling device for automobile - Google Patents

Abstract

PURPOSE:To provide an automobile cooling device of such constitution as to perform cooling by the cold accumulated in a cold accumulator. CONSTITUTION:An automobile cooling device provided with a compressor 1, a condenser 2, an expansion valve 4 and an evaporator 5 is further provided with a cold accumulator 9; three-way valves 7, 8 for leading refrigerant, fed through the expansion valve 4 at the cold accumulating time of the cold accumulator 9, to the cold accumulator 9; change-over valves 10, 11 for leading refrigerant, fed through a condenser 2 at the cold release time of the cold accumulator 9, to the cold accumulator 9; and a means for controlling the flow of refrigerant through the respective valves 7, 8, 10, 11 according to the operating state.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle cooling device.

[0002]

2. Description of the Related Art When an automobile is stopped in the hot sun with the engine stopped, the interior temperature of the interior becomes considerably high. Therefore, there is a demand for rapid cooling of the interior of the interior after starting the engine.

As a countermeasure against this, in a conventional automotive air conditioner, for example, as shown in Japanese Patent Laid-Open No. 2-220923, a regenerator that stores cold heat can exchange heat with a refrigerant of the air conditioner via a regenerator evaporator. It has been proposed to connect and circulate a storage refrigerant body sent from a regenerator to a cooling evaporator to cool air sent to the vehicle interior.

[0004]

However, in the conventional vehicle air conditioner provided with such a regenerator, an evaporator, a compressor, a fan, etc. must be additionally installed in addition to the regenerator, and the car regenerator needs to be added. There was a problem that the space and weight became too large to be mounted.

The present invention has been made in view of the above problems, and an object of the present invention is to provide an air conditioner for an automobile which cools air by the cold heat stored in the regenerator.

[0006]

The invention according to claim 1 is
A compressor for compressing a refrigerant, a condenser for discharging heat of the refrigerant to the outside, an expansion valve for expanding the refrigerant, and an evaporator for discharging cold heat of the refrigerant to air sent to the vehicle interior, a cooling device for an automobile, And a valve means for guiding the refrigerant sent through the expansion valve to the regenerator when the regenerator stores the cold, and for guiding the refrigerant sent through the condenser when the regenerator cools to the regenerator, and the operating state. And means for controlling the flow of the refrigerant via the respective valve means.

According to a second aspect of the present invention, a compressor for compressing the refrigerant, a condenser for discharging the heat of the refrigerant to the outside, an expansion valve for expanding the refrigerant, and the cold heat of the refrigerant are discharged to the air sent into the vehicle interior. In an automobile air conditioner provided with an evaporator, a plurality of regenerator capsules for storing cold heat in a regenerator is provided, and a refrigerant sent through the expansion valve during regenerator storage is independently guided to each regenerator capsule, and of the regenerator A valve means for independently guiding the refrigerant sent through the condenser to the cold storage capsules during cooling is provided, and means for controlling the flow of the refrigerant via the valve means according to the operating state.

[0008]

According to the invention of claim 1, in addition to the conventional cooling device, a regenerator for storing cold heat,
With a relatively simple structure including a valve means for changing the flow of the refrigerant, it is possible to provide a vehicle air-conditioning device that cools by the cold heat stored in the regenerator.

During normal cooling, the refrigerant sent from the compressor is circulated around the regenerator via the valve means.

During cold storage, the refrigerant guided through the expansion valve is circulated through the cold storage via the valve means, and the cold heat of the refrigerant is stored in the cold storage.

During cooling, the refrigerant guided through the condenser is circulated through the regenerator via the valve means, and the cold heat stored in the regenerator is released to the refrigerant, so that the cooling effect is enhanced.

According to the second aspect of the present invention, the regenerator is provided with a plurality of regenerator capsules for storing cold heat, and each regenerator capsule is independently cooled or released, so that the regenerator capsules are independently short-circuited. Even if not all of the cold storage capsules are cold stored at the time of cold storage, the cold storage capsules that have completed cold storage are cooled to enhance the cooling effect, so that the frequency of use of the cold storage device can be increased.

[0013]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

In FIG. 1, 1 is a variable capacity type compressor whose capacity can be changed from the outside, 2 is a condenser,
3 is a liquid tank, 4 is an expansion valve, and 5 is an evaporator. The high-pressure and high-temperature refrigerant gas compressed by the compressor 1 is sent to the condenser 2, radiates heat to the outside in the condenser 2 and liquefies, and then passes through the expansion valve 4 to expand and become a low-temperature and low-pressure liquid, thus becoming an evaporator. 5, the evaporator 5 vaporizes the air sent through the blower (blower) 15 while releasing cold heat, and becomes low-pressure gas, which is sucked into the compressor 1 again. On the other hand, the evaporator 5
The air cooled by passing through the
It is sent to the vehicle interior through 5 to cool the vehicle interior.

Reference numeral 11 is an air mix damper, and 9 is a heater core. The air sent from the blower 15 is warmed by passing through the heater core 14 via the air mix damper 17.

In the air-conditioning duct 15, an inside / outside air intake switching damper 16 and three outlet switching dampers 17, 18, 19 are provided.
Is provided so that the outlets to the passenger compartment can be switched at three locations.

As shown in FIG. 2, 9 is a regenerator for storing cold heat. The regenerator 9 is covered with, for example, a heat insulating material, or a plurality of regenerator capsules 22 are provided inside a main body 31 having a heat insulating structure such as a thermos.

The refrigerant passage 30 and the regenerator body 31 are arranged in parallel between the expansion valve 4 and the evaporator 5.

The inlet 32 of the regenerator body 31 and the refrigerant passage 30
A valve 7 is provided at a branch portion of the valve, and a valve 8 is provided at an outlet 33 of the regenerator body 31 and a branch portion of the cooling pipe 30.

Each of the three-way valves 7 and 8 represents the refrigerant sent through the expansion valve 4 as shown by the broken line arrow in FIG.
1 is switched between a cold storage position and a cooling position in which the refrigerant sent through the expansion valve 4 is circulated through the refrigerant passage 30 as indicated by a solid arrow in FIG. When each of the three-way valves 7 and 8 is in the cold storage position, the cold storage main body 31 circulates the refrigerant therein to cool the cold heat of the cold storage capsule 22.
The heat is released to the heat exchanger.

Although the cold storage capsules 22 are arranged in a plane, they may be stacked in multiple stages or arranged in a cylindrical shape. Further, although each cold storage capsule 22 has a cylindrical shape, it may be formed in a box shape or the like.

As shown in FIG. 3, a lattice-shaped refrigerant passage (heat transfer tube) 13 penetrating the inside of each regenerator capsule 22 is provided inside the regenerator body 31, and the heat insulating material 2 is also provided.
One refrigerant channel 12 covered with 1 is provided.

A refrigerant passage 13 and a refrigerant passage 12 are arranged in parallel between the liquid tank 3 and the expansion valve 4.

Switching valves 10 and 11 are provided at the upstream branch portion and the downstream branch portion of the refrigerant flow path 13 and the refrigerant flow path 12, respectively.

Each of the switching valves 10 and 11 has a position at the time of cooling in which the refrigerant sent through the liquid tank 3 is circulated through the refrigerant flow path 13 as shown by a dashed arrow in FIG. It is possible to switch to the normal cooling position in which the refrigerant sent therethrough is circulated through the refrigerant passage 12 as shown by the solid line arrow in FIG.

The regenerator material 23 is filled in each regenerator capsule 22, and the regenerator material 23 undergoes phase change while exchanging heat with the refrigerant circulating in the regenerator body 31 or the refrigerant passage 13. ing. That is, the regenerator material 23 stores heat by changing its phase from liquid to solid while absorbing its latent heat by the refrigerant circulating in the regenerator body 31, while the latent heat from the refrigerant circulating in the refrigerant passage 13 is stored. The solid is changed to a liquid while absorbing the heat and cooled.

In the regenerator 9, the regenerator material 23 is eliminated,
The low temperature refrigerant itself may be stored.

A control circuit (not shown) detects the temperature of the refrigerant storage element at the inlet and outlet of the refrigerant passage 13 and the refrigerant temperature at the outlet of the evaporator 5 in order to know the operating state of the cooling device. Sensors, sensors that detect the temperature of air that has passed through the evaporator, sensors that detect the temperature inside the vehicle, air conditioner switches, and room temperature setting switches are input, and in order to know the operating state of the vehicle, Each signal is input from a cooling water temperature sensor, a vehicle speed sensor, an accelerator pedal opening sensor, and a brake pedal switch that detects depression of the brake pedal.

The control circuit inputs each of these signals and controls the compressor 1, the blower 15, the air mix damper 17, the outlet switching dampers 17, 18, 19, the three-way valves 7, 8 and the switching valves 10, 11 as follows. It is designed to be controlled comprehensively by switching to each of the modes described in 1.

[Normal Cooling Mode] When it is detected that the detected cooling load is smaller than the set value, the normal cooling mode is set. In the normal cooling mode, the refrigerant flows through the refrigerant passage 12
The three-way valves 7 and 8 and the switching valves 10 and 11 so as to guide the expansion valve 4 to the evaporator 5 through the refrigerant passage 30 from the expansion valve 4 to increase or decrease the cold storage temperature of the regenerator 9. Regardless, the capacity of the compressor 1 is controlled according to the cooling load.

[Cold storage mode 1] In the normal cooling mode, there is not a sufficient amount of cold storage based on the detected value of the refrigerant inlet / outlet temperature of the regenerator body 31, and the capacity of the compressor 1 has a surplus capacity for the detected cooling load. If there is, the cold storage mode 1 is set. In the cold storage mode 1, the capacity of the compressor 1 is maximized, and the flow path to the cold storage body 31 is fully opened or half-opened according to the refrigerant inlet / outlet temperature of the cold storage body 31 and the cooling load, and the low temperature is sent via the expansion valve 4. Of the refrigerant of only the regenerator body 31 or the regenerator body 31 and the refrigerant passage 30
Control so that it flows to both.

When it is determined that the cold storage is sufficiently performed based on the detected value of the refrigerant inlet / outlet temperature of the regenerator main body 31, the three-way valves 7 and 8 are opened in the normal cooling mode only. Switch to the position.

[Cold storage mode 2] When it is detected that the vehicle is decelerating based on signals from the vehicle speed detection means and the brake pedal depression detection means while the vehicle is running with the operation of the cooling device stopped, there is no sufficient amount of cold storage. The cold storage mode 2 is set. In the cold storage mode 2, the blower outlet switching dampers 17, 18, 19 are switched to the DEF position for sending the wind toward the window so that the wind is not directly applied to the occupant, the blower 15 and the compressor 1 are driven, and the three-way valve 7, 8 is switched to a position where only the regenerator body 31 is opened.

Then, when it is detected that the detected vehicle speed becomes equal to or lower than the set value or that the regenerator 9 has sufficiently stored cold, the driving of the compressor 1 is stopped.

[Rapid cooling mode] When it is detected that the detected cooling load is larger than the set value and the amount of cold storage is sufficient, the rapid cooling mode is set. At this time, the switching valves 10 and 11 in the regenerator 9 are switched to the position where the refrigerant flow path 13 is opened, and the refrigerant sent through the condenser 2 exchanges heat with the regenerator material 23 in the regenerator capsule 22 to expand the expansion valve 4. Flows to. The three-way valves 7 and 8 allow the refrigerant to flow through the refrigerant passage 30.
It is switched to the position where it is guided only to the evaporator 5 through. As a result, the low-temperature refrigerant is rapidly supplied to the evaporator 5, so that the cooling capacity is increased, and the cool air is immediately blown into the vehicle compartment to perform the rapid cooling.

[Cooling Mode] When it is determined that the engine is idling during warm-up based on the detected engine speed and cooling water temperature, when it is detected that the amount of cold storage is sufficient,
If the detected cooling load is not great enough to require rapid cooling, the cooling mode is set. At this time, the regenerator 9
The switching valves 10 and 11 therein are switched to a position where the refrigerant passage 13 is opened, and the refrigerant sent through the condenser 2 exchanges heat with the cold storage material 23 in the cold storage capsule 22 and flows to the expansion valve 4. The three-way valves 7 and 8 are switched to a position in which the refrigerant is guided to the evaporator 5 only through the refrigerant flow passage 30. As a result, the low-temperature refrigerant is supplied to the evaporator 5, so that the drive load of the compressor 1 is reduced by reducing the capacity of the compressor 1 by the amount corresponding to the improvement of the cooling capacity, and the fuel efficiency during idling can be improved.

The flow chart of FIG. 4 shows the contents of the above control executed in the control circuit, which is executed in a fixed cycle.

Explaining this, when the engine is started, the three-way valves 7 and 8 are switched to the position for opening the refrigerant passage 30 (steps 1 and 2), and the cooling device is turned on or off based on the ON / OFF state of the air conditioner switch. It is determined whether or not the vehicle is being driven (step 3).

The [quick cooling mode] routine determines, as the cooling load, that the difference between the detected value of the vehicle interior temperature and the temperature set by the occupant is larger than the first set value (step 4), and the regenerator is stored. When the temperature of the refrigerant in 9 is lower than the reference value and there is a sufficient amount of cold storage (step 5), the switching valves 10 and 11 are switched to the cooling position where the refrigerant flow path 13 is opened, and the three-way valve 7, 8 is switched to a cooling position where the refrigerant flow passage 30 is opened, and cooling is performed (step 6). As a result, the refrigerant sent from the compressor 1 is cooled in two stages of the condenser 2 and the regenerator 9, and the temperature of the refrigerant introduced to the evaporator 5 is lowered to rapidly cool the vehicle interior.

While the cooling load is large and the air conditioner switch remains ON, this rapid cooling mode is maintained (steps 7, 20, 21), while the cold heat stored in the regenerator 9 is completely discharged. When it is detected (step 7), the refrigerant flows through the refrigerant flow path 12 and the expansion valve 4
The three-way valves 7 and 8 and the switching valves 1 so that the expansion valve 4 leads to the evaporator 5 through the refrigerant flow path 30.
0 and 11 are switched to the normal cooling position (step 8).

The routine of [cooling mode] is step 4
If it is determined that the cooling load is less than or equal to the first set value, it is determined that the cool storage 9 has a sufficient amount of cold storage during warm-up (steps 12 and 13), and each three-way valve 7 , 8 and the switching valves 10 and 11 are switched to the cooling position to perform cooling (step 14). As a result, the capacity of the compressor 1 is reduced by the amount of the increased cooling capacity, and the drive load thereof is reduced.

When the air conditioner switch is turned off (step 15), the three-way valves 7, 8 and the switching valves 10, 1 are turned on.
Switch 1 to normal cooling position (step 16),
The procedure proceeds to the [Cold storage mode 2] routine described later.

When the operating conditions other than the idling state during warming up are satisfied (step 12) or the cold heat stored in the regenerator 9 is completely discharged (step 13), the three-way valves 7, 8 and the switching valves 10, 11 are selected. The normal cooling position is switched so that the refrigerant passage 12 and the refrigerant passage 30 are opened (step 1
6).

After that, if the air conditioner switch remains ON (step 18) and the amount of cold storage is sufficient (step 19), the three-way valves 7, 8 and the switching valves 10, 11 are held in the normal cooling position. (Step 17).

In the [Cold storage mode 1] routine, the capacity of the compressor 1 is set to the maximum (step 22), and the detected cooling load is the second set value (second set value <first set value). (Step 23). When the cooling load is larger than the second set value, the three-way valves 7 and 8 are half-opened, and the refrigerant is switched so that the refrigerant flows through the refrigerant passage 30 and the regenerator 9 half by half (step 25). When the cooling load is equal to or less than the second set value, the three-way valves 7 and 8 are switched to the positions where the regenerator 9 side is fully opened.

When it is detected that the cold energy has been sufficiently stored (step 26), the three-way valves 7 and 8 cause the refrigerant passage 3 to flow.
The switch is switched to the position where 0 is fully opened, and the compressor 1 is returned to the normal capacity (step 2).
7).

Steps 3, 10, 11, 18, 20, 2
In FIG. 5, when the air conditioner switch is turned off, FIG.
[Cold storage mode 2] routine shown in FIG.

In the routine of [Cold storage mode 2], it is detected in Steps 29 and 30 that the cool storage amount of the cool storage unit 9 is insufficient while the engine is operating, and then in Step 31, the vehicle speed is equal to or higher than the reference value Vh, and When the deceleration when the brake pedal is depressed is detected, the program proceeds to step 32, the electromagnetic clutch of the compressor 1 is turned on, and the outlet switching dampers 17, 18, 19 are directed toward the window so that the human body is not directly exposed to the wind. In addition to switching to the DEF position for sending the wind, the switching valves 10 and 11 are switched to the cold storage position where the refrigerant passage 12 is opened, and the three-way valves 7 and 8 are switched to the cold storage position where the regenerator 9 is opened to perform cold storage. This makes it possible to store cold by utilizing the kinetic energy of the vehicle during deceleration.

Then, when the cold storage amount is sufficient (step 33) or a low speed running state in which the vehicle speed is equal to or lower than the reference value Vl is detected (step 34), the electromagnetic clutch of the compressor 1 is turned off and the three-way valves 7, 8, switching valve 10, 11
Is switched to the normal cooling position, and the outlet switching dampers 17, 18 and 19 are returned to their original positions (step 35). After that, when the air conditioner switch is turned on, the process returns to the start (step 36) and ends when the engine is stopped.

Next, in another embodiment shown in FIG. 6, the inside of the regenerator body 31 is divided into six refrigerant chambers 41 in which the cold storage capsules 22 are interposed, and each refrigerant chamber 41 expands during cold storage. Stop valve 4 for shutting off the flow of refrigerant sent through the valve 7.
2 are provided, and each cold storage capsule 22 is provided at the time of cooling.
A stop valve 24 that shuts off the flow of the refrigerant sent through the condenser 2 to the refrigerant passage 13 therein is provided for each cold storage capsule 22. It should be noted that parts corresponding to those in FIGS.

The control circuit selectively opens each of the stop valves 42 so as to send the refrigerant to the cold storage capsules 22 that have not completed cold storage at the time of cold storage, and cools each of the cold storage capsules 22 one by one. Each stop valve 24 is selectively opened so that the refrigerant is sent only to the cold storage capsule 22 that has completed the cold storage.

The flow chart of FIG. 7 shows the above-mentioned control contents executed in the control circuit, which is executed in a constant cycle.

To explain this, in the routine of [quick cooling mode], it is judged in step 5 that there is a cold storage capsule 22 for which cold storage is completed, and in step 6, the switching valve 1
0 and 11 are switched to the cooling position where the refrigerant flow path 13 is opened, and each stop valve 24 is selectively opened so that the refrigerant is sent only to the cold storage capsule 22 that has completed the cold storage. As a result, even when the cold storage of all the cold storage capsules 22 is not completed, the refrigerant sent from the compressor 1 is cooled in two stages of the condenser 2 and the regenerator 9, and the temperature of the refrigerant introduced to the evaporator 5 is lowered to reduce the vehicle temperature. Cool the room rapidly.

While the cooling load is large and the air conditioner switch remains ON, this rapid cooling mode is maintained (steps 7, 20, 21), while the cold heat of all the cold storage capsules 22 is completely discharged. When the fact is detected (step 7), the refrigerant is guided to the expansion valve 4 through the refrigerant flow path 12 and then to the evaporator 5 from the expansion valve 4 through the refrigerant flow path 30 to the three-way valves 7 and 8 and the switching valves 10 respectively. , 11 are switched to the normal cooling position (step 8).

The routine of [cooling mode] is step 4
When it is determined that the cooling load is less than or equal to the first set value, it is determined that there is a cold storage capsule 22 that has completed cold storage in the cold storage 9 during idling during warm-up (step 1
2 and 13), the switching valves 10 and 11 are switched to a cooling position where the refrigerant flow path 13 is opened, and each stop valve 24 is selectively opened so that the refrigerant is sent only to the cold storage capsule 22 that has completed the cold storage. To cool down (Step 1
4). As a result, the capacity of the compressor 1 is reduced by the amount of the increased cooling capacity, and the drive load thereof is reduced.

When it is detected that the cold heat of all the cold storage capsules 22 has been discharged (step 13), the three-way valves 7, 8 and the switching valves 10, 11 are opened to the refrigerant passage 12 and the refrigerant passage 30. Then, the normal cooling position is switched (step 17).

In the [Cold storage mode 1] routine, the capacity of the compressor 1 is set to the maximum (step 22), and the detected cooling load is the second set value (second set value <first set value). (Step 23). When the cooling load is larger than the second set value, the three-way valves 7 and 8 are half-opened, and the refrigerant is switched so that the refrigerant flows through the refrigerant passage 30 and the regenerator 9 half by half (step 25). When the cooling load is equal to or less than the second set value, the three-way valves 7 and 8 are switched to the positions where the regenerator 9 side is fully opened.

In Steps 51 and 52, Steps 3 and 1
At 0, 11, 18, 20, 36, when the air conditioner switch is turned off, the routine proceeds to the [cool storage mode 2] routine shown in FIG.

In the routine of [Cold storage mode 2], it is detected in Steps 29 and 30 that the cool storage amount of the cool storage unit 9 is insufficient during engine operation, and then in Step 31, the vehicle speed is equal to or higher than the reference value Vh, and When the deceleration when the brake pedal is depressed is detected, the program proceeds to step 32, the electromagnetic clutch of the compressor 1 is turned on, and the outlet switching dampers 17, 18, 19 are directed toward the window so that the human body is not directly exposed to the wind. The DEF position for sending the wind, the switching valves 10 and 11 are switched to the cold storage position where the refrigerant flow path 12 is opened, the three-way valves 7 and 8 are switched to the cold storage position where the regenerator 9 is opened, and the cold storage is not completed. Each stop valve 42 is selectively opened to send the refrigerant to the cold storage capsules 22, and the cold storage capsules 22 are stored one by one. As a result, cold storage is performed using the kinetic energy of the vehicle during deceleration.

Then, when it is detected that the cold storage of all the cold storage capsules 22 is completed (step 61) or the low speed running state in which the vehicle speed becomes equal to or lower than the reference value Vl (step 34), the electromagnetic clutch of the compressor 1 is turned on. The three-way valves 7 and 8 and the switching valves 10 and 11 are switched to the normal cooling position, and the blower outlet switching damper 17 is turned off.
18 and 19 are returned to their original positions (step 35). After that, when the air conditioner switch is turned on, the process returns to the start (step 36) and ends when the engine is stopped.

[0061]

As described above, according to the first aspect of the invention, the compressor for compressing the refrigerant, the condenser for releasing the heat of the refrigerant to the outside, the expansion valve for expanding the refrigerant, and the cold heat of the refrigerant are provided. In a vehicle air conditioner including an evaporator that discharges to the air sent to the passenger compartment, a regenerator that stores cold heat, and a refrigerant that is sent through the expansion valve when the regenerator stores cold are guided to the regenerator, and the regenerator is discharged. Since valve means for guiding the refrigerant sent through the condenser to the regenerator during cooling is provided, and means for controlling the flow of the refrigerant through each valve means according to the operating state, for example, during burning in the passenger compartment in summer, etc. The refrigerant can be cooled in two stages, the compressor and the regenerator, for rapid cooling, and can be realized without requiring major changes to the sensors and actuators that have been used conventionally. Can.

According to the second aspect of the invention, the regenerator is provided with a plurality of regenerator capsules for storing cold heat, and the refrigerant sent through the expansion valve is independently guided to each regenerator during regenerator regenerator storage. The cool storage is equipped with a valve means for independently guiding the refrigerant sent through the condenser to each cold storage capsule when the cool storage cools down, and means for controlling the flow of the refrigerant via each valve means according to the operating state. Increase the frequency of use of the regenerator because it independently cools the capsules in a short time, and even if not all of the cold accumulating capsules are stored when the cool is released, the cool storage capsules that have completed cool storage are allowed to cool and the cooling effect is enhanced. You can

[Brief description of drawings]

FIG. 1 is a mechanical configuration diagram showing an embodiment of the present invention.

FIG. 2 is a schematic sectional view of the regenerator.

FIG. 3 is a partial perspective view of the regenerator.

FIG. 4 is a flowchart for explaining the same operation.

FIG. 5 is a flowchart for explaining the same operation.

FIG. 6 is a schematic sectional view of a regenerator showing another embodiment.

FIG. 7 is a flowchart for explaining the same operation.

FIG. 8 is a flowchart for explaining the same operation.

[Explanation of symbols]

 1 Compressor 2 Condenser 4 Expansion valve 5 Evaporator 7 Three-way valve 8 Three-way valve 9 Regenerator 10 Switching valve 11 Switching valve 12 Refrigerant flow path 13 Refrigerant flow path 22 Cold storage capsule 24 Stop valve 41 Refrigerant chamber 42 Stop valve

Claims (2)

[Claims] 1. A vehicle, comprising: a compressor for compressing a refrigerant; a condenser for discharging heat of the refrigerant to the outside; an expansion valve for expanding the refrigerant; and an evaporator for discharging cold heat of the refrigerant to air sent into a vehicle interior. In the cooling device, a regenerator that stores cold heat, and a valve that guides the refrigerant that is sent through the expansion valve to the regenerator when the regenerator stores heat, and that guides the refrigerant that is sent through the condenser when the regenerator cools to the regenerator. An air conditioner for an automobile, comprising: means and means for controlling a flow of a refrigerant through each valve means according to an operating state. 2. A vehicle for automobiles, comprising: a compressor for compressing a refrigerant; a condenser for discharging heat of the refrigerant to the outside; an expansion valve for expanding the refrigerant; and an evaporator for discharging cold heat of the refrigerant to air sent into the passenger compartment. In the cooling device, the regenerator is provided with a plurality of regenerator capsules for storing cold heat, and the refrigerant sent through the expansion valve is independently guided to each regenerator capsule during regenerator storage, and the condenser is released during regenerator cooling. An air conditioner for an automobile, comprising valve means for independently guiding a refrigerant to be sent to each cold storage capsule, and means for controlling a flow of the refrigerant via each valve means according to an operating state.