KR20120090258A - Brind-type cooling and heating system for vehicle - Google Patents

Abstract

PURPOSE: A brine cooling and heating system for vehicles is provided to properly implement the cooling, heating, and dehumidifying of a vehicle room and the defrost of a condenser by having a refrigerant circulating cycle, a brine circulating cycle, first and second three-way valves, first and second bypass lines, and a control unit. CONSTITUTION: A brine cooling and heating system for vehicles comprises a refrigerant circulating cycle(110), a brine circulating cycle(160), first and second three-way valves(174,178), first and second bypass lines(176,180), and a control unit(200). When refrigerant forwardly circulates, the refrigerant circulating cycle absorbs the heat from brine. When the refrigerant backwardly circulates, the refrigerant circulating cycle transfers the heat to the brine. The brine circulating cycle comprises a pump(162), a heat exchanger(164), an indoor heat exchanger(166), and an cold heat storage/heat storage tank(168). The first and second three-way valves are respectively arranged in an inlet part of the cold heat storage/heat storage tank and an inlet part of the heat exchanger. The first and second bypass lines respectively connect the first three-way valve and an outlet part of the cold heat storage/heat storage tank and the second three-way valve and the outlet part of the heat exchanger. The control unit controls the opening of the first and second three-way valves and the circulating directions of the refrigerant.

Description

Brine-type cooling and heating system for automobiles {BRIND-TYPE COOLING AND HEATING SYSTEM FOR VEHICLE}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a brine type heating and cooling system for an automobile, and more particularly, to a brine type heating and cooling system for an automobile, which is mounted on an automobile and performs both cooling and heating of the vehicle compartment, heat storage and heat storage.

In general, a car is equipped with an air conditioning system for heating and cooling the room (cabin). The automotive air conditioning system includes a cooling system having a compressor, a condenser, an expansion valve, and an evaporator.

The compressor compresses the low temperature low pressure gas phase refrigerant drawn from the evaporator into the high temperature high pressure gas phase refrigerant while being driven by the engine. The condenser condenses and liquefies the high temperature and high pressure gaseous refrigerant drawn from the compressor, and the expansion valve is adiabatic expansion of the liquid refrigerant drawn from the condenser to form a mixture of gas and liquid. The refrigerant passing through the expansion valve is vaporized by absorbing heat from the ambient air in the evaporator and then introduced into the compressor. The main surface air cooled through heat exchange with the refrigerant in the evaporator is supplied to the compartment to cool the compartment.

A brine type cooling system is known as an automotive cooling system for cooling a vehicle. Generally, a brine cooling system for automobiles includes a refrigerant circulation cycle and a brine circulation cycle as disclosed in Japanese Patent Laid-Open No. 2005-265824. The refrigerant circulation cycle includes the compressor, condenser, expansion valve, and evaporator described above, and the brine circulation cycle includes a heat exchanger for performing heat exchange between the refrigerant and brine, a pump for circulating the brine, and heat exchange between the air and brine to be introduced into the cabin. An indoor heat exchanger to carry out, and a storage tank for storing the heat by cooling the brine.

The brine-type cooling system has the advantage of having both functions of cooling and storage cooling of the vehicle. However, the brine cooling system has only functions of cooling and accumulating the vehicle compartment, but does not have a function of heating and reheating the compartment.

Korean Utility Model Registration No. 310320 discloses a brine type air conditioning system, which is an improved version of the brine type cooling system. In this brine cooling and heating system, the refrigerant circulation cycle circulates the refrigerant in the forward or reverse direction by adjusting the opening direction of the 4-way valve. When the refrigerant circulates in the forward direction, the brine type air conditioning system becomes a cooling system, and when the refrigerant circulates in the reverse direction, the brine type air conditioning system becomes a heating system.

The brine air-conditioning system disclosed in Korean Utility Model Registration No. 310320 is not intended for use in vehicles. Therefore, the brine air-conditioning system is not suitable for performing operations such as cabin cooling, cabin heating, cabin dehumidification heating, condenser defrosting, and the like.

The present invention is to solve the conventional problems as described above, an object of the present invention is to provide a brine type air-conditioning system for a vehicle that can perform a smooth operation such as vehicle cooling, car heating, car dehumidification heating, defrosting of the condenser. It is.

In order to achieve the above object, the present invention, the refrigerant circulation cycle 110 for absorbing heat from the brine during the forward circulation of the refrigerant, and transfers heat to the brine during the reverse circulation of the refrigerant; A pump 162 for circulating the brine, a heat exchanger 164 for performing heat exchange between the refrigerant and the brine, an indoor heat exchanger 166 for performing heat exchange between the air flowing into a vehicle and the brine, and heat from the brine A brine circulation cycle 160 including a heat storage / heat storage tank 168 that absorbs heat and accumulates heat or deprives heat of the brine; A first three-way valve 174 and a second three-way valve 178 provided at an inlet of the heat storage / heat storage tank 168 and an inlet of the heat exchanger 164, respectively; First bypass line connecting between the first three-way valve 174 and the outlet of the heat storage / storage tank 168, the outlet of the second three-way valve 178 and the heat exchanger 164, respectively 176 and second bypass line 180; And a control unit 200 for controlling the circulation direction of the refrigerant and the opening degrees of the first three-way valve 174 and the second three-way valve 178.

Preferably the brine type air-conditioning system for a vehicle comprises a third three-way valve 170 provided in the inlet of the indoor heat exchanger; And a third bypass line 172 connecting the third three-way valve 170 and the outlet of the indoor heat exchanger 166. In this case, the controller 200 controls the opening degree of the third three-way valve 170.

Preferably, the automotive brine air-conditioning system further includes an electric heater 210 positioned adjacent to the indoor heat exchanger and an auxiliary electric heater 220 positioned to surround the heat storage / heat storage tank 168. The electric heater 210 operates or stops under the control of the controller 200, and heats the air just before passing through the indoor heat exchanger 166 during operation. The auxiliary electric heater 220 is operated or stopped by the control of the control unit 200, and applies heat to the cold storage / heat storage tank 168 during operation.

Further features of the brine type heating and cooling system for a vehicle according to the present invention will be described in detail by the following embodiments and the dependent claims of the claims.

According to the present invention, it is possible to smoothly perform the vehicle cooling and the vehicle heating, the vehicle dehumidification heating and the condenser defrost.

1 is a conceptual diagram schematically showing a brine type air conditioning system for automobiles according to the present invention.
2A to 2D are conceptual views illustrating a process of cooling a vehicle compartment by the brine type air conditioning system for automobiles of FIG. 1.
3A to 3D are conceptual views illustrating a process in which a heating of a vehicle room is performed by the brine type air conditioning system for automobile of FIG. 1.
4 is a conceptual diagram illustrating a process in which a dehumidifying heating of a vehicle room is performed by the brine type air conditioning system for automobile of FIG. 1.
5A and 5B are conceptual views illustrating a process in which defrosting of a condenser is performed by the brine type air conditioning system for automobile of FIG. 1.

Hereinafter, preferred embodiments of a control method for a brine type air conditioning system for a vehicle according to the present invention will be described in detail with reference to the accompanying drawings. It is to be understood that the terminology or words used herein are not to be construed in an ordinary sense or a dictionary, and that the inventor can properly define the concept of a term to describe its invention in the best possible way And should be construed in accordance with the meaning and concept consistent with the technical idea of the present invention.

The brine type heating and cooling system 100 for a vehicle according to the present invention includes a refrigerant circulation cycle 110, a brine circulation cycle 160, and a first three-way valve to a third three-way valve as shown in FIG. 1. 174, 178, and 170, first to third bypass lines 176, 180, and 172, and a controller 200. However, in contrast, the automotive brine air-conditioning system may not include the third three-way valve 170 and the third bypass line 172.

The refrigerant circulation cycle 110 absorbs heat from the brine during the forward circulation of the refrigerant, and transfers heat to the brine during the reverse circulation of the refrigerant. To this end, the refrigerant circulation cycle 110 includes a compressor 112, a 4-way valve 114, a condenser 116, a bidirectional expansion valve 118, an evaporator 120, and an accumulator. accumulator 122).

The compressor 112 compresses the gaseous refrigerant of low temperature and low pressure into the gaseous refrigerant of high temperature and high pressure. The four-way valve 114 is for controlling the circulation direction of the refrigerant, and in the forward circulation of the refrigerant, open two flow paths (flow paths indicated by solid lines in FIG. 2) facing each other among the four flow paths, The other two flow paths (flow paths indicated by dotted lines in Fig. 2) are opened. The condenser 116 transfers the heat of the refrigerant introduced from the compressor 112 to the ambient air during the forward circulation of the refrigerant, and the heat of the ambient air to the refrigerant introduced from the bidirectional expansion valve 118 during the reverse circulation of the refrigerant. To pass. The bidirectional expansion valve 118 thermally expands the liquid refrigerant introduced from the condenser 116 during the forward circulation of the refrigerant to form a mixture of gas and liquid, and enters from the evaporator 120 during the reverse circulation of the refrigerant. It has the same effect on the liquid refrigerant. The evaporator 120 transfers the heat of the brine to the refrigerant introduced from the bidirectional expansion valve 118 during the forward circulation of the refrigerant, and the heat of the refrigerant introduced from the compressor 112 to the brine during the reverse circulation of the refrigerant. . The accumulator 122 is provided to prevent the liquid refrigerant that has not evaporated from being sucked into the compressor 112.

The brine circulation cycle 160 includes a pump 162, a heat exchanger 164, an indoor heat exchanger 166, and a heat storage / heat storage tank 168. The pump 162 circulates the brine in one direction (clockwise in FIG. 2). The heat exchanger 164 cools the brine by transferring the heat of the brine to the refrigerant passing through the condenser 120 in the forward circulation of the refrigerant, and the heat of the refrigerant passing through the condenser 120 in the reverse circulation of the refrigerant. Heat the brine by passing it on. The indoor heat exchanger 166 transfers the heat of air to be introduced into the compartment to cool the brine when cooling the brine, and cools the air to be introduced into the compartment, and transfers the heat of brine to the air to be introduced into the compartment when the brine is heated. To heat the air to be introduced into the vehicle compartment. The cold storage / heat storage tank 168 accumulates heat by depriving heat of the brine when the brine is cooled, and absorbs heat from the brine to heat the brine when the brine is heated.

The third three-way valve 170 is installed at the inlet of the indoor heat exchanger 166, and the third bypass line 172 connects the third three-way valve 170 and the outlet of the indoor heat exchanger 166. According to the adjustment of the opening degree of the third three-way valve 170, the brine passes only through the indoor heat exchanger 166 or only through the third bypass line 172 or the indoor heat exchanger 166 and the third bypass line 172. Via everyone.

The first three-way valve 174 is installed at the inlet of the cold storage / heat storage tank 168, and the first bypass line 176 connects the outlet of the first three-way valve 174 and the cold storage / heat storage tank 168. do. According to the adjustment of the opening degree of the first three-way valve 174, the brine passes through only the cold storage / heat storage tank 168 or only the first bypass line 176, or the cold storage / heat storage tank 168 and the first bypass line ( 176) through everyone.

The second three-way valve 178 is installed at the inlet of the heat exchanger 164, and the second bypass line 180 connects the second three-way valve 178 and the outlet of the heat exchanger 164. By adjusting the opening degree of the second three-way valve 178, the brine passes only through the heat exchanger 164, only through the second bypass line 180, or both the heat exchanger 164 and the second bypass line 180. Via.

The control unit 200 is driven by the electric power supplied from the battery 190 provided in the vehicle, the opening of the third three-way valve 170, the opening of the first three-way valve 174 and the opening of the second three-way valve 178. Adjust In addition, the control unit 200 controls the circulation direction of the refrigerant by adjusting the opening degree of the four-way valve 114 of the refrigerant circulation cycle 110.

Meanwhile, the brine type air conditioning system 100 may further include an electric heater 210. The electric heater 210 is located adjacent to the indoor heat exchanger 166, and operates or stops under the control of the controller 200, and receives electric power from the battery 190 or from the waste heat recovered. The electric heater 210 heats the air just before passing through the indoor heat exchanger 166 during operation.

In addition, the brine air-conditioning system 100 may further include an auxiliary electric heater (220). The auxiliary electric heater 220 is positioned to surround the heat storage / heat storage tank 168, operates or stops under the control of the controller 200, and receives electric power from the battery 190 or from the waste heat recovered. The auxiliary electric heater 220 heats the storage cooling / heat storage tank 168 during operation.

Hereinafter, a process of operating the brine type air conditioning system 100 during cooling of a vehicle, heating of a vehicle, dehumidifying heating of a vehicle, and dehumidifying a condenser will be described.

< Interior Cooling  >

A process of operating the brine type air conditioning system 100 at the time of cooling the vehicle will be described with reference to FIGS. 2A to 2D.

Initially cooling the vehicle, the control unit 200 controls the opening degree of the four-way valve 114 to circulate the refrigerant in the forward direction as shown in FIG. 2A, and the opening degree of the third three-way valve 170 and the second three-way valve 178. The third bypass line 172 and the second bypass line 180 is blocked by adjusting the opening, and only the first bypass line 176 is opened by adjusting the opening degree of the first three-way valve 174. Therefore, the brine deprived of heat from the refrigerant circulation cycle 110 at the initial stage of the cooling room absorbs heat only from the air passing through the indoor heat exchanger 166, but does not absorb heat from the heat storage / heat storage tank 168. The temperature drops quickly.

Then, when the vehicle temperature received from the vehicle temperature sensor (not shown) installed in the vehicle is lower than a preset reference temperature, the controller 200 controls the first three-way valve 174 as shown in FIG. 2B. It opens in the direction of the pass line 176 and the direction of the storage cooling / heat storage tank 168. In such a case, vehicle cooling and storage cooling are performed simultaneously.

If the compressor 112 is stopped for some reason such as the execution of idle stop logic while cooling the vehicle and cooling the vehicle simultaneously, the control unit 200 controls the third three-way valve 170 as shown in FIG. 2C. And adjusting the opening degree of the first three-way valve 174 to block the third bypass line 172 and the first bypass line 176, and adjusting the opening degree of the second three-way valve 178 to adjust the second bypass. Only line 180 is open. In this case, the brine is circulated without absorbing heat from the evaporator 120 (i.e. without depriving the cold air) at the same time as the heat is removed from the storage / storage tank 168, thereby cooling the compartment. .

On the other hand, if the brine air-conditioning system 100 does not include the third three-way valve 170 and the third bypass line 172, the control unit 200 when the cooling control of the vehicle described above is the third three-way valve 170 Will not adjust the opening degree.

As described above, the vehicle cooling initial control unit 200 performs the vehicle cooling priority control. Unlike this, however, the control unit 200 may perform the cooling control priority in the initial room cooling. In this case, the controller 200 adjusts the opening degree of the first three-way valve 174 and the second three-way valve 178 at the initial stage of cooling the vehicle, as shown in FIG. 2D, to thereby control the first bypass line 176 and the first bypass line. The second bypass line 180 is blocked and only the third bypass line 172 is opened by adjusting the opening degree of the third three-way valve 170. Therefore, in the primary storage cooling priority control, the initial cooling of the vehicle compartment is not performed, but only the cooling of the vehicle is achieved.

After that, when the temperature of the heat storage / heat storage tank 168 is lower than the preset reference temperature, the brine type air conditioning system 100 operates as shown in FIG. 2B. The controller 200 may receive the temperature of the heat storage / heat storage tank 168 from a sensor (not shown) that detects the temperature of the heat storage / heat storage tank 168.

< Interior  Heating>

A process of operating the brine type air conditioning system 100 at the time of heating the vehicle will be described with reference to FIGS. 3A to 3D.

At the beginning of the vehicle heating, the controller 200 circulates the refrigerant in the reverse direction by adjusting the opening degree of the four-way valve 114 as shown in FIG. 3A, and opening the third three-way valve 170 and the second three-way valve 178. The third bypass line 172 and the second bypass line 180 is blocked by adjusting the opening, and only the first bypass line 176 is opened by adjusting the opening degree of the first three-way valve 174. Therefore, in the initial heating of the compartment, the brine that absorbs heat from the refrigerant circulation cycle 110 loses heat to the air passing through the indoor heat exchanger 166, but does not lose heat to the heat storage / heat storage tank 168. The temperature rises quickly. In this case, the control unit 200 may additionally operate the electric heater 210. In this case, the temperature of the cabin can be increased more quickly.

Then, when the vehicle temperature received from the vehicle temperature sensor (not shown) is greater than the preset reference temperature, the controller 200 passes the first three-way valve 174 to the first bypass line 176 as shown in FIG. 3B. ) Direction and the heat storage / heat storage tank 168. In this case, the vehicle heating and the heat storage take place simultaneously. Here, the control unit 200 may further operate the auxiliary electric heater 220. In this case, heat storage can be achieved more quickly.

If the compressor 112 is stopped for some reason such as execution of idle stop logic during heating of the vehicle and simultaneous heat storage, the control unit 200 controls the third three-way valve 170 as shown in FIG. 3C. And adjusting the opening degree of the first three-way valve 174 to block the third bypass line 172 and the first bypass line 176, and adjusting the opening degree of the second three-way valve 178 to adjust the second bypass. Only line 180 is open. In this case, the brine absorbs heat from the cold storage / heat storage tank 168 and circulates without losing heat to the evaporator 120, thereby heating the vehicle compartment. In this case, the controller 200 may further operate the auxiliary electric heater 220. In this case, even when the compressor 112 is stopped, the heating of the vehicle compartment may be uniformly and continuously performed.

On the other hand, if the brine air-conditioning system 100 does not include the third three-way valve 170 and the third bypass line 172, the control unit 200 when the heating control of the vehicle described above is the third three-way valve 170 Will not adjust the opening degree.

As described above, the vehicle interior heating initial control unit 200 performs the vehicle heating priority control. Unlike this, however, the control unit 200 may perform the heat storage priority control at the beginning of the vehicle heating. In this case, the control unit 200 adjusts the opening degree of the first three-way valve 174 and the second three-way valve 178 at the beginning of the vehicle heating, as shown in FIG. The second bypass line 180 is blocked and only the third bypass line 172 is opened by adjusting the opening degree of the third three-way valve 170. Therefore, in the heat storage priority control, only the heat storage is performed without the heating of the initial vehicle heating. In this case, the control unit 200 may further operate the electric heater 210 to simultaneously proceed with vehicle heating and heat storage. In addition, the control unit 200 may operate the auxiliary electric heater 220 to shorten the heat storage time.

Then, if the temperature of the heat storage / storage tank 168 is higher than the preset reference temperature, the brine type air conditioning system 100 is operated as shown in Figure 3b. The controller 200 may receive the temperature of the heat storage / heat storage tank 168 from a sensor (not shown) that detects the temperature of the heat storage / heat storage tank 168.

< Interior  Dehumidification Heating>

A process of operating the brine type air conditioning system 100 during the dehumidification heating of the vehicle will be described with reference to FIG. 4.

During the dehumidification heating of the vehicle compartment, the control unit 200 circulates the refrigerant in the forward direction by adjusting the opening degree of the four-way valve 114 as shown in FIG. 4, and the third three-way valve 170 and the second three-way valve 178 The opening degree is adjusted to block the third bypass line 172 and the second bypass line 180, and the opening degree of the first three-way valve 174 is adjusted to open only the first bypass line 176. The heater 210 is operated. In this case, the air flowing into the compartment is heated by the electric heater 210 and dehumidified in the indoor heat exchanger 166.

On the other hand, if the brine-type heating and cooling system 100 does not include the third three-way valve 170 and the third bypass line 172, the control unit 200 when the dehumidification heating control of the vehicle described above is the third three-way valve ( 170) will not adjust the opening degree.

<Of condenser When defrosting  >

The operation of the brine air conditioning system 100 during defrosting of the condenser will be described with reference to FIGS. 5A and 5B.

When the refrigerant circulates in the reverse direction, water passing through the condenser 116 condenses on the surface of the condenser 116. Therefore, the work (defrosting work) which removes the water condensed on the surface of the condenser 116 is needed.

When the condenser 116 is to be defrosted during the reverse circulation of the refrigerant, the control unit 200 adjusts the opening degree of the third three-way valve 170 and the first three-way valve 174 as shown in FIG. 5A to bypass the third bypass. The line 172 and the first bypass line 176 are blocked and only the second bypass line 180 is opened by adjusting the opening degree of the second three-way valve 178. In this case, since the refrigerant discharged from the compressor 112 can reach the condenser 116 without losing heat from the evaporator 120, the temperature of the refrigerant flowing into the condenser 116 is relatively high, thereby condensing ( 116 may be defrosted. In this case, the controller 200 may operate the auxiliary electric heater 220 to uniformly and continuously heat the vehicle compartment.

Meanwhile, the control unit 200 may defrost the condenser 116 in a manner as shown in FIG. 5B. That is, the controller 200 circulates the refrigerant in the forward direction, and adjusts the openings of the third three-way valve 170 and the first three-way valve 174 to control the third bypass line 172 and the first bypass line 176. And the second three-way valve 178 is opened in the direction of the second bypass line 180 and the heat exchanger 165. In this case, since the high temperature refrigerant discharged from the compressor 112 flows into the condenser 116, defrosting of the condenser 116 may be performed. In addition, since the refrigerant flows into the compressor 112 after receiving heat from the brine in the evaporator 120, the temperature of the refrigerant discharged from the compressor 116 is relatively high, thereby shortening the defrosting time of the condenser 116.

In the state shown in FIG. 5B, the controller 200 may open the second three-way valve 178 only in the direction of the second bypass line 180. In addition, the controller 200 may operate the auxiliary electric heater 220 to uniformly and continuously heat the vehicle compartment.

On the other hand, if the brine air-conditioning system 100 does not include the third three-way valve 170 and the third bypass line 172, the control unit 200 when the defrost control of the condenser described above is the third three-way valve 170 Will not adjust the opening degree.

As described above, although the present invention has been described by way of limited embodiments and drawings, the present invention is not limited thereto and is described below by the person skilled in the art and the technical spirit of the present invention. Of course, it can be variously modified and modified within the scope of equivalent claims.

100: Automotive brine heating and cooling system
110: refrigerant circulation cycle 112: compressor
114: four-way valve 116: condenser
118: bidirectional expansion valve 120: evaporator
122: Accumulator 160: Brine Cycle
162 pump 164 heat exchanger
166: indoor heat exchanger 168: cold storage / heat storage tank
170, 174, 178: third, first, second three-way valve
172, 176, 180: 3rd, 1st, 2nd bypass line
190: battery 200: control unit
210: electric heater 220: auxiliary electric heater

Claims (16)

A refrigerant circulation cycle (110) for absorbing heat from the brine during forward circulation of the refrigerant and transferring heat to the brine during reverse circulation of the refrigerant;
A pump 162 for circulating the brine, a heat exchanger 164 for performing heat exchange between the refrigerant and the brine, an indoor heat exchanger 166 for performing heat exchange between the air flowing into a vehicle and the brine, and heat from the brine A brine circulation cycle 160 including a heat storage / heat storage tank 168 that absorbs heat and accumulates heat or deprives heat of the brine;
A first three-way valve 174 and a second three-way valve 178 provided at an inlet of the heat storage / heat storage tank 168 and an inlet of the heat exchanger 164, respectively;
First bypass line connecting between the first three-way valve 174 and the outlet of the heat storage / storage tank 168, the outlet of the second three-way valve 178 and the heat exchanger 164, respectively 176 and second bypass line 180; And
And a control unit (200) for controlling the circulation direction of the refrigerant and the opening degrees of the first three-way valve (174) and the second three-way valve (178). The method of claim 1,
The control unit 200 at the time of cooling the vehicle,
Circulating the refrigerant in a forward direction,
When the temperature of the vehicle compartment is higher than or equal to a preset reference temperature, the second bypass line 180 is blocked and the first three-way valve 174 is opened only in the direction of the first bypass line 176.
When the temperature of the vehicle compartment is lower than the reference temperature, the second bypass line 180 is blocked, and the first three-way valve 174 is directed toward the first bypass line 176 and the heat storage / heat storage tank. Open in the (168) direction,
When the refrigerant circulation cycle is not operated, the first bypass line 176 is blocked and the second three-way valve 178 is opened only in the direction of the second bypass line 180. Automotive air conditioning system. The method of claim 1,
When the heating of the vehicle control unit 200,
Circulating the refrigerant in the reverse direction,
When the temperature of the vehicle compartment is lower than or equal to a preset reference temperature, the second bypass line 180 is blocked and the first three-way valve 174 is opened only in the direction of the first bypass line 176.
When the temperature of the vehicle compartment is greater than the reference temperature, the second bypass line 180 is blocked and the first three-way valve 174 is directed toward the first bypass line 176 and the heat storage / heat storage tank Open in the (168) direction,
When the refrigerant circulation cycle is not operated, the first bypass line 176 is blocked and the second three-way valve 178 is opened only in the direction of the second bypass line 180. Automotive air conditioning system. The method of claim 1,
A third three-way valve 170 provided at an inlet of the indoor heat exchanger; And
And a third bypass line 172 connecting between the third three-way valve 170 and the outlet of the indoor heat exchanger 166.
The control unit 200 is a brine type heating and cooling system for a vehicle, characterized in that it comprises controlling the opening degree of the third three-way valve (170). The method of claim 4, wherein
Further comprising an electric heater 210 located adjacent to the indoor heat exchanger, the electric heater 210 is operated or stopped by the control of the control unit 200, during operation passes through the indoor heat exchanger 166 A brine air-conditioning system for automobiles, characterized by applying heat to air immediately before the following. The method of claim 5,
Auxiliary electric heater 220 is further included to surround the heat storage / heat storage tank 168, the auxiliary electric heater 220 is operated or stopped by the control of the control unit 200, when the cold storage Brine heating and cooling system for cars, characterized in that to heat the heat storage tank (168). The method of claim 4, wherein
Auxiliary electric heater 220 is further included to surround the heat storage / heat storage tank 168, the auxiliary electric heater 220 is operated or stopped by the control of the control unit 200, when the cold storage Brine heating and cooling system for cars, characterized in that to heat the heat storage tank (168). 8. The method according to any one of claims 4 to 7,
The control unit 200 at the time of cooling the vehicle,
Circulating the refrigerant in a forward direction,
When the temperature of the vehicle compartment is higher than or equal to a preset reference temperature, the third bypass line 172 and the second bypass line 180 are blocked, and the first three-way valve 174 is connected to the first bypass line. Open only in the direction of (176),
When the temperature of the vehicle compartment is lower than the reference temperature, the third bypass line 172 and the second bypass line 180 are blocked, and the first three-way valve 174 is connected to the first bypass line. 176) and the heat storage / heat storage tank 168, and
When the refrigerant circulation cycle is not operated, the third bypass line 172 and the first bypass line 176 are blocked, and the second three-way valve 178 is connected to the second bypass line 180. Brine air conditioning system for cars, characterized in that only opening in the direction. 8. The method according to any one of claims 4 to 7,
The control unit 200 at the time of cooling the vehicle,
Circulating the refrigerant in a forward direction,
When the temperature of the heat storage tank 168 is greater than or equal to a preset reference temperature, the first bypass line 176 and the second bypass line 180 are blocked, and the third three-way valve 170 is closed. Only open in the direction of the third bypass line 172,
When the temperature of the heat storage / heat storage tank 168 is lower than the reference temperature, the third bypass line 172 and the second bypass line 180 are blocked, and the first three-way valve 174 is closed. Open in the direction of the first bypass line 176 and in the direction of the heat storage / heat storage tank 168,
When the refrigerant circulation cycle is not operated, the third bypass line 172 and the first bypass line 176 are blocked, and the second three-way valve 178 is connected to the second bypass line 180. Brine air conditioning system for cars, characterized in that only opening in the direction. 8. The method according to any one of claims 4 to 7,
When the heating of the vehicle control unit 200,
Circulating the refrigerant in the reverse direction,
When the temperature of the vehicle compartment is lower than or equal to a preset reference temperature, the third bypass line 172 and the second bypass line 180 are blocked, and the first three-way valve 174 is connected to the first bypass line. Open only in the direction of (176),
When the vehicle temperature is greater than the reference temperature, the third bypass line 172 and the second bypass line 180 are blocked, and the first three-way valve 174 is connected to the first bypass line. 176) and the heat storage / heat storage tank 168, and
When the refrigerant circulation cycle is not operated, the third bypass line 172 and the first bypass line 176 are blocked, and the second three-way valve 178 is connected to the second bypass line 180. Brine air conditioning system for cars, characterized in that only opening in the direction. 8. The method according to any one of claims 4 to 7,
When the heating of the vehicle control unit 200,
Circulating the refrigerant in the reverse direction,
When the temperature of the heat storage / heat storage tank 168 is lower than or equal to a preset reference temperature, the first bypass line 176 and the second bypass line 180 are blocked and the third three-way valve 170 is closed. Only open in the direction of the third bypass line 172,
When the temperature of the heat storage / heat storage tank 168 is greater than the reference temperature, the third bypass line 172 and the second bypass line 180 are blocked and the first three-way valve 174 is closed. Open in the direction of the first bypass line 176 and in the refrigerating / heat storage tank direction 168,
When the refrigerant circulation cycle is not operated, the third bypass line 172 and the first bypass line 176 are blocked, and the second three-way valve 178 is connected to the second bypass line 180. Brine air conditioning system for cars, characterized in that only opening in the direction. The method of claim 5,
The control unit 200 during the dehumidification heating of the vehicle,
Circulating the refrigerant in a forward direction,
At the same time, the third bypass line 172 and the second bypass line 180 are blocked, and the first three-way valve 174 is opened only in the direction of the first bypass line 176.
Brine type heating and cooling system for cars, characterized in that for operating the electric heater (172). The method of claim 7, wherein
When the condenser 116 of the refrigerant circulation cycle is to be defrosted during the reverse circulation of the refrigerant, the control unit 200,
At the same time, the third bypass line 172 and the first bypass line 176 are blocked, and the second three-way valve 178 is opened only in the direction of the second bypass line 180. Automotive brine heating and cooling system. The method of claim 7, wherein
When the condenser 116 of the refrigerant circulation cycle is to be defrosted during the reverse circulation of the refrigerant, the control unit 200,
Circulating the refrigerant in a forward direction,
At the same time, the third bypass line 172 and the first bypass line 176 are blocked, and the second three-way valve 178 is opened only in the direction of the second bypass line 180. Automotive brine heating and cooling system. The method of claim 7, wherein
When the condenser 116 of the refrigerant circulation cycle is to be defrosted during the reverse circulation of the refrigerant, the control unit 200,
Circulating the refrigerant in a forward direction,
At the same time, the third bypass line 172 and the first bypass line 176 are blocked, and the second three-way valve 178 is directed toward the second bypass line 180 and the heat exchanger 164. Automotive brine air-conditioning system, characterized in that the opening. The method according to any one of claims 13 to 15,
When defrosting the condenser 116, the control unit 200 operates the auxiliary electric heater 220, a brine type heating and cooling system for a vehicle.

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