KR20200107478A - Heat management system of vehicle - Google Patents

Heat management system of vehicle Download PDF

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Publication number
KR20200107478A
KR20200107478A KR1020190026662A KR20190026662A KR20200107478A KR 20200107478 A KR20200107478 A KR 20200107478A KR 1020190026662 A KR1020190026662 A KR 1020190026662A KR 20190026662 A KR20190026662 A KR 20190026662A KR 20200107478 A KR20200107478 A KR 20200107478A
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KR
South Korea
Prior art keywords
cooling water
battery
cooling
circulation line
water circulation
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KR1020190026662A
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Korean (ko)
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KR102568852B1 (en
Inventor
김두훈
김현규
안경주
이진재
한중만
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한온시스템 주식회사
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Priority to KR1020190026662A priority Critical patent/KR102568852B1/en
Priority to PCT/KR2020/002722 priority patent/WO2020184869A1/en
Priority to CN202080018691.1A priority patent/CN113557353B/en
Priority to US17/436,834 priority patent/US11936029B2/en
Publication of KR20200107478A publication Critical patent/KR20200107478A/en
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Publication of KR102568852B1 publication Critical patent/KR102568852B1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P7/00—Controlling of coolant flow
    • F01P7/14—Controlling of coolant flow the coolant being liquid
    • F01P7/16—Controlling of coolant flow the coolant being liquid by thermostatic control
    • F01P7/165—Controlling of coolant flow the coolant being liquid by thermostatic control characterised by systems with two or more loops
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
    • B60H1/00278—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit for the battery
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K11/00—Arrangement in connection with cooling of propulsion units
    • B60K11/02—Arrangement in connection with cooling of propulsion units with liquid cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
    • B60L58/26—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2306/00—Other features of vehicle sub-units
    • B60Y2306/05—Cooling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P7/00—Controlling of coolant flow
    • F01P7/14—Controlling of coolant flow the coolant being liquid
    • F01P2007/146—Controlling of coolant flow the coolant being liquid using valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2050/00—Applications
    • F01P2050/22—Motor-cars
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2050/00—Applications
    • F01P2050/24—Hybrid vehicles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

Abstract

The present invention relates to a heat management system of a vehicle, which can increase the coolant cooling efficiency of a coolant circulation line of a battery side by improving the flow of coolant and a cooling structure of the coolant circulation line of the battery side, such that the temperature of the coolant circulating in a battery is sufficiently lowered to improve the cooling efficiency of the battery. To this end, the heat management system of a vehicle comprises a water-cooled cooling device for cooling a plurality of objects to be cooled installed in a vehicle in a water cooling manner. The water-cooled cooling device separately has a coolant circulation line for circulating coolant between the objects to be cooled and a radiator. The cooling water circulation line has an independent cooling water circulation structure for each of the objects to be cooled to separately and independently cool the objects to be cooled with different heating temperatures.

Description

차량의 열관리 시스템{HEAT MANAGEMENT SYSTEM OF VEHICLE}Vehicle heat management system {HEAT MANAGEMENT SYSTEM OF VEHICLE}

본 발명은 차량의 열관리 시스템에 관한 것으로서, 보다 상세하게는, 배터리측 냉각수순환라인의 냉각수 흐름과 냉각구조를 개선함으로써, 배터리측 냉각수순환라인의 냉각수 냉각효율을 높일 수 있고, 이를 통해, 배터리에 순환되는 냉각수의 온도를 충분히 낮춰, 배터리의 냉각효율을 개선시킬 수 있는 차량의 열관리 시스템에 관한 것이다.The present invention relates to a thermal management system for a vehicle, and more particularly, by improving the cooling water flow and cooling structure of the battery-side cooling water circulation line, it is possible to increase the cooling water cooling efficiency of the battery-side cooling water circulation line. It relates to a thermal management system for a vehicle capable of improving the cooling efficiency of a battery by sufficiently lowering the temperature of the circulating coolant.

친환경 차량의 일례로서, 전기자동차, 하이브리드(Hybrid) 자동차, 연료전지 자동차(이하, "차량"이라 통칭함) 등이 있다.Examples of eco-friendly vehicles include electric vehicles, hybrid vehicles, and fuel cell vehicles (hereinafter, collectively referred to as "vehicles").

이러한 차량은, 다양한 열관리 장치들을 갖추고 있다. 예를 들면, 도 1에 도시된 바와 같이, 차실내를 냉,난방하는 공조장치(10)와, 차량의 특정 냉각대상물을 수냉식으로 냉각시키는 수냉식 냉각장치, 예를 들면, 배터리(B)를 냉각시키기 위한 수냉식 배터리 냉각장치(20)와, 전장부품모듈(C)을 냉각시키기 위한 수냉식 전장부품모듈 냉각장치(30) 등이 있다.Such vehicles are equipped with various thermal management devices. For example, as shown in FIG. 1, an air conditioner 10 that cools and heats the interior of a vehicle, and a water-cooled cooling device that cools a specific object to be cooled in a vehicle in a water-cooled manner, for example, cools the battery B. A water-cooled battery cooling device 20 for cooling the electrical component module C, and a water-cooled electrical component module cooling device 30 for cooling the electrical component module C.

배터리 냉각장치(20)는, 공조장치(10)의 냉매를 이용하여 배터리(B)를 냉각시키는 것으로, 공조장치(10)의 냉매 일부를 분기하는 분기라인(22)과, 분기된 냉매를 감압,팽창시키는 배터리냉각용 팽창밸브(24)와, 감압,팽창된 냉매를 도입하여 냉기를 발생시키는 칠러(Chiller)(25)와, 칠러(25)에서 발생된 냉기를 배터리(B)에 전달하는 배터리측 냉각수순환라인(26)을 포함한다.The battery cooling device 20 cools the battery B by using the refrigerant of the air conditioner 10, and depressurizes the branch line 22 for branching part of the refrigerant in the air conditioner 10 and the branched refrigerant. ,The expansion valve 24 for cooling the battery to expand, a chiller 25 that generates cool air by introducing a reduced pressure and expanded refrigerant, and a cooler 25 that transmits cold air generated from the chiller 25 to the battery B. It includes a battery-side cooling water circulation line (26).

특히, 배터리측 냉각수순환라인(26)은, 워터펌프(27)를 갖추고 있는 것으로, 칠러(25)와 배터리(B) 사이에서 냉각수를 순환시킨다. 따라서, 칠러(25)에서 발생된 냉기를 배터리(B)에 전달하여 상기 배터리(B)를 냉각시킨다.In particular, the battery-side cooling water circulation line 26 is equipped with a water pump 27 and circulates the cooling water between the chiller 25 and the battery B. Accordingly, the cold air generated by the chiller 25 is delivered to the battery B to cool the battery B.

전장부품모듈 냉각장치(30)는, 전장부품모듈측 냉각수순환라인(32)과 워터펌프(34)와 라디에이터(35)를 갖추고 있는 것으로, 냉각수를 라디에이터(35)와 전장부품모듈(C) 사이에서 순환시킨다.The electrical component module cooling device 30 is equipped with a cooling water circulation line 32 on the electrical component module side, a water pump 34, and a radiator 35, and the cooling water is supplied between the radiator 35 and the electrical component module C. Cycle in

따라서, 전장부품모듈(C)의 열을 냉각수로 흡수하고, 냉각수에 흡수된 열기를 라디에이터(35)를 통해 방열시키며, 이러한 냉각수의 흡열과 발열 작용을 통해 상기 전장부품모듈(C)을 냉각시킨다.Therefore, the heat of the electrical component module C is absorbed by the cooling water, the heat absorbed in the cooling water is radiated through the radiator 35, and the electrical component module C is cooled through the heat absorbing and exothermic action of the cooling water. .

한편, 배터리 냉각장치(20)의 경우, 공조장치(10)의 냉매를 이용하여 배터리(B)를 냉각시키므로, 공조장치(10)가 오프(OFF)되었을 시, 예를 들면, "난방모드" 시에는, 배터리(B)를 냉각시킬 수 없다.On the other hand, in the case of the battery cooling device 20, since the battery B is cooled by using the refrigerant of the air conditioning device 10, when the air conditioning device 10 is turned off, for example, "heating mode" At the time, the battery B cannot be cooled.

따라서, 공조장치(10)가 오프(OFF)되어 공조장치(10)의 냉매를 이용할 수 없을 경우에는, 전장부품모듈 냉각장치(30)의 냉각수를 이용하여 배터리(B)를 냉각시키도록 구성된다.Therefore, when the air conditioner 10 is turned off and the refrigerant of the air conditioner 10 cannot be used, the battery B is cooled using the cooling water of the electric component module cooling device 30. .

이를 위해, 차량의 열관리 시스템은, 배터리 냉각장치(20)의 배터리측 냉각수순환라인(26)과, 전장부품모듈 냉각장치(30)의 전장부품모듈측 냉각수순환라인(32)을 하나의 냉각수 순환회로로 연결하는 냉각수 회로 연결부(40)를 구비한다.To this end, the vehicle's thermal management system circulates one cooling water through the battery-side cooling water circulation line 26 of the battery cooling device 20 and the electrical component module-side cooling water circulation line 32 of the electrical component module cooling device 30. A coolant circuit connection part 40 connected to a circuit is provided.

냉각수 회로 연결부(40)는, 배터리측 냉각수순환라인(26)의 냉각수를 전장부품모듈측 냉각수순환라인(32)으로 바이패스하는 제 1삼방밸브(42)와 제 1연결라인(44) 및, 전장부품모듈측 냉각수순환라인(32)을 순환한 냉각수를 다시 배터리측 냉각수순환라인(26)으로 리턴시키는 제 2삼방밸브(46)와 제 2연결라인(48)을 포함한다.The cooling water circuit connection part 40 includes a first three-way valve 42 and a first connection line 44 for bypassing the cooling water of the battery-side cooling water circulation line 26 to the electronic component module-side cooling water circulation line 32, and It includes a second three-way valve 46 and a second connection line 48 for returning the cooling water circulating through the cooling water circulation line 32 on the electric component module side back to the cooling water circulation line 26 on the battery side.

이러한 냉각수 회로 연결부(40)는, 배터리(B)를 순환한 배터리측 냉각수순환라인(26)의 냉각수를, 전장부품모듈측 냉각수순환라인(32)으로 도입시키고, 도입된 냉각수가 라디에이터(35)를 통과하면서 냉각될 수 있게 한다.The cooling water circuit connection part 40 introduces the cooling water of the battery-side cooling water circulation line 26 circulating the battery B into the cooling water circulation line 32 on the electric component module side, and the introduced cooling water is the radiator 35 Allows to cool while passing through.

그리고 라디에이터(35)에서 냉각된 냉각수가 다시 배터리측 냉각수순환라인(26)으로 리턴되면서 배터리(B)측으로 순환될 수 있게 한다. 따라서, 상기 배터리(B)가 냉각될 수 있게 한다.In addition, the cooling water cooled by the radiator 35 is returned to the battery-side cooling water circulation line 26 to be circulated to the battery B side. Thus, it allows the battery B to be cooled.

그런데, 이러한 종래의 열관리 시스템은, 전장부품모듈측 냉각수순환라인(32)의 냉각수를 이용하여 상기 배터리(B)를 냉각시키는 과정에서, 상기 배터리(B)가 충분히 냉각되지 않는다는 단점이 있다.However, such a conventional thermal management system has a disadvantage in that the battery B is not sufficiently cooled in the process of cooling the battery B by using the cooling water of the cooling water circulation line 32 on the electronic component module side.

특히, 배터리(B)의 발열온도에 비해 전장부품모듈(C)의 발열온도가 상대적으로 높은데, 상대적으로 낮은 온도의 배터리(B)의 열을 흡수한 냉각수가, 상대적으로 높은 온도의 전장부품모듈(C)로 순환되면서 오히려 더 가열된다는 단점이 있다.In particular, the heating temperature of the electronic component module (C) is relatively high compared to the heating temperature of the battery (B). The coolant absorbing the heat of the battery (B) at a relatively low temperature is the electronic component module at a relatively high temperature. There is a disadvantage that it is heated more while being circulated to (C).

그리고 이러한 단점 때문에 전장부품모듈(C)을 통과한 냉각수가, 라디에이터(35)를 통과하면서 냉각될 시에, 충분히 냉각되지 않는다는 문제점이 있으며, 이러한 문제점 때문에 라디에이터(35)를 통과한 냉각수가 배터리측 냉각수순환라인(26)으로 리턴되면서 상기 배터리(B)에 순환되더라도 상기 배터리(B)가 충분히 냉각되지 않는 다는 단점이 있으며, 그 결과, 배터리(B)의 냉각효율이 매우 낮다는 결점이 있다.And because of this drawback, there is a problem that the coolant that has passed through the electronic component module (C) is not sufficiently cooled when it is cooled while passing through the radiator 35, and because of this problem, the coolant that has passed through the radiator 35 There is a disadvantage in that the battery B is not sufficiently cooled even when it is returned to the cooling water circulation line 26 and circulated through the battery B. As a result, the cooling efficiency of the battery B is very low.

본 발명은 상기와 같은 종래의 문제점을 해결하기 위해 안출된 것으로서, 그 목적은, 배터리측 냉각수순환라인의 냉각수 흐름과 냉각구조를 개선함으로써, 배터리측 냉각수순환라인의 냉각수 냉각효율을 높일 수 있는 차량의 열관리 시스템을 제공하는데 있다.The present invention was conceived to solve the conventional problems as described above, and an object thereof is to improve the cooling water flow and cooling structure of the cooling water circulation line on the battery side, thereby improving the cooling water cooling efficiency of the cooling water circulation line on the battery side. It is to provide a thermal management system of

본 발명의 다른 목적은, 배터리측 냉각수순환라인의 냉각수 냉각효율을 높일 수 있도록 구성함으로써, 배터리에 순환되는 냉각수의 온도를 충분히 낮출 수 있고, 이를 통해, 배터리의 냉각효율을 개선시킬 수 있는 차량의 열관리 시스템을 제공하는데 있다.Another object of the present invention is to increase the cooling water cooling efficiency of the battery-side cooling water circulation line, so that the temperature of the cooling water circulating in the battery can be sufficiently reduced, and through this, the cooling efficiency of the battery can be improved. It is to provide a thermal management system.

이러한 목적을 달성하기 위하여, 본 발명에 따른 차량의 열관리 시스템은, 차량에 설치된 복수의 냉각대상물들을 수냉식으로 냉각시키는 수냉식 냉각장치를 구비하는 차량의 열관리 시스템에 있어서, 상기 수냉식 냉각장치는, 상기 냉각대상물과 라디에이터 사이에서 냉각수를 순환시키는 냉각수순환라인을 각각 가지며; 상기 냉각수순환라인은, 발열온도가 각기 다른 냉각대상물을 각각 독립적으로 냉각시킬 수 있도록, 상기 각 냉각대상물별로 각각 독립적인 냉각수 순환 구조를 갖는 것을 특징으로 한다.In order to achieve this object, in the vehicle thermal management system according to the present invention, in the vehicle thermal management system having a water cooling type cooling device for cooling a plurality of cooling objects installed in the vehicle in a water cooling type, the water cooling type cooling device includes the cooling Each has a cooling water circulation line for circulating cooling water between the object and the radiator; The cooling water circulation line is characterized in that it has an independent cooling water circulation structure for each of the cooling objects so that the cooling objects having different heating temperatures can be independently cooled.

바람직하게는, 상기 수냉식 냉각장치는, 배터리와 라디에이터 사이에서 냉각수를 순환시켜 상기 배터리를 냉각시키는 배터리측 냉각수순환라인과; 전장부품모듈와 라디에이터 사이에서 냉각수를 순환시켜 상기 전장부품모듈을 냉각시키는 전장부품모듈측 냉각수순환라인을 포함하며; 상기 배터리측 냉각수순환라인과 상기 전장부품모듈측 냉각수순환라인은, 상기 배터리와 전장부품모듈을 각각 독립적으로 냉각시킬 수 있도록, 상기 배터리와 전장부품모듈에 각각 대응하여, 독립적인 냉각수 순환 구조를 갖는 것을 특징으로 한다.Preferably, the water-cooled cooling device comprises: a battery-side cooling water circulation line for cooling the battery by circulating cooling water between a battery and a radiator; And a cooling water circulation line for cooling the electronic component module by circulating coolant between the electronic component module and the radiator; The battery-side cooling water circulation line and the electronic component module-side cooling water circulation line each have an independent cooling water circulation structure corresponding to the battery and the electrical component module so that the battery and the electrical component module can be cooled independently. It features.

그리고 상기 배터리측 냉각수순환라인의 라디에이터와, 상기 전장부품모듈측 냉각수순환라인의 라디에이터는, 공용의 몸체를 가지며; 상기 공용의 몸체는, 상기 배터리측 냉각수순환라인의 냉각수가 순환될 수 있는 배터리 냉각 영역부와; 상기 전장부품모듈측 냉각수순환라인의 냉각수가 순환될 수 있는 전장부품모듈 냉각 영역부가 각각 구분되게 형성되는 것을 특징으로 한다.The radiator of the cooling water circulation line on the battery side and the radiator of the cooling water circulation line on the electric component module side have a common body; The common body includes a battery cooling area through which the cooling water of the battery-side cooling water circulation line is circulated; It is characterized in that the electronic component module cooling area portions through which the cooling water of the cooling water circulation line of the electronic component module side can be circulated are formed to be separated.

그리고 상기 배터리측 냉각수순환라인은, 공조장치의 냉매를 도입하여 냉기를 발생시키는 칠러를 더 포함하며; 상기 칠러와 상기 배터리 사이에서 냉각수를 순환시켜, 상기 칠러의 냉기로 상기 배터리를 냉각시키는 것을 특징으로 한다.And the battery-side cooling water circulation line further includes a chiller for generating cold air by introducing a refrigerant from an air conditioner; By circulating coolant between the chiller and the battery, the battery is cooled with cold air of the chiller.

그리고 상기 배터리측 냉각수순환라인의 냉각수를, 상기 배터리와 칠러 사이에서 순환시키거나 또는 상기 배터리와 라디에이터 사이에서 순환시킬 수 있도록, 상기 배터리측 냉각수순환라인의 냉각수 흐름을 제어하는 냉각수 흐름제어부를 더 구비하며; 상기 냉각수 흐름제어부는, 상기 칠러의 순환 냉각수와, 상기 라디에이터의 순환 냉각수 중, 어느 하나의 냉각수가 상기 배터리를 선택적으로 냉각시킬 수 있도록 하는 것을 특징으로 한다.And a cooling water flow control unit for controlling the cooling water flow of the battery-side cooling water circulation line so that the cooling water of the battery-side cooling water circulation line can be circulated between the battery and the chiller or between the battery and the radiator. And; The cooling water flow control unit is characterized in that any one of the circulating cooling water of the chiller and the circulating cooling water of the radiator can selectively cool the battery.

본 발명에 따른 차량의 열관리 시스템에 의하면, 별도의 라디에이터를 통해 배터리측 냉각수순환라인의 냉각수를 독립적으로 냉각시키는 구조이므로, 발열온도가 각기 다른 배터리와 전장부품모듈을 각각 독립적인 냉각수 순환 구조로 냉각시킬 수 있는 효과가 있다.According to the thermal management system of the vehicle according to the present invention, since the cooling water of the battery-side cooling water circulation line is independently cooled through a separate radiator, batteries and electronic component modules having different heating temperatures are respectively cooled in an independent cooling water circulation structure. There is an effect that can be made.

또한, 발열온도가 각기 다른 배터리와 전장부품모듈을 독립적인 냉각수 순환구조로 냉각시킬 수 있으므로, 단일의 냉각수 순환 구조를 통해 배터리와 전장부품모듈을 한꺼번에 냉각시키는 종래의 기술과 달리, 배터리와 전장부품모듈의 냉각효율을 현저하게 개선시킬 수 있는 효과가 있다.In addition, since batteries and electronic component modules with different heating temperatures can be cooled with an independent cooling water circulation structure, unlike the conventional technology of cooling the battery and electronic component modules at once through a single cooling water circulation structure, the battery and electronic component modules There is an effect that can remarkably improve the cooling efficiency of the module.

특히, 발열온도가 상대적으로 낮은 배터리의 경우, 독립적인 냉각수 순환구조로 냉각되므로, 발열온도가 상대적으로 높은 전장부품모듈에 영향받지 않는다. 따라서, 전장부품모듈과 관계없이 효율좋게 냉각되는 효과가 있다.In particular, in the case of a battery having a relatively low heating temperature, since it is cooled by an independent cooling water circulation structure, it is not affected by the electronic component module having a relatively high heating temperature. Therefore, there is an effect of efficient cooling regardless of the electric component module.

도 1은 종래의 차량 열관리 시스템을 상세하게 나타내는 도면,
도 2는 본 발명에 따른 차량 열관리 시스템을 상세하게 나타내는 도면,
도 3은 본 발명의 열관리 시스템을 구성하는 라디에이터를 나타내는 도면이다.1 is a diagram showing in detail a conventional vehicle thermal management system;
2 is a diagram showing in detail a vehicle thermal management system according to the present invention;
3 is a diagram showing a radiator constituting the thermal management system of the present invention.

이하, 본 발명에 따른 차량의 열관리 시스템의 바람직한 실시예를 첨부한 도면에 의거하여 상세히 설명한다(종래와 동일한 구성요소는 동일한 부호를 사용하여 설명한다).Hereinafter, a preferred embodiment of a vehicle thermal management system according to the present invention will be described in detail with reference to the accompanying drawings (same components as in the prior art will be described with the same reference numerals).

먼저, 본 발명에 따른 차량의 열관리 시스템의 특징부를 살펴보기에 앞서, 도 2를 참조하여 차량의 열관리 시스템에 대해 간략하게 설명한다.First, before looking at the features of the vehicle thermal management system according to the present invention, with reference to FIG. 2, a brief description of the vehicle thermal management system.

차량의 열관리 시스템은, 차실내를 냉,난방하는 공조장치(10)와, 차량의 특정 냉각대상물들을 수냉식으로 냉각시키는 수냉식 냉각장치, 예를 들면, 배터리(B)를 냉각시키는 수냉식 배터리 냉각장치(20)와, 전장부품모듈(C)을 냉각시키는 수냉식 전장부품모듈 냉각장치(30)를 포함한다.The vehicle thermal management system includes an air conditioner 10 that cools and heats the interior of the vehicle, and a water-cooled cooling device that cools specific objects to be cooled in the vehicle by water cooling, for example, a water-cooled battery cooling device that cools the battery B. 20) and a water-cooled electrical component module cooling device 30 for cooling the electrical component module C.

배터리 냉각장치(20)는, 공조장치(10)의 냉매를 이용하여 배터리(B)를 냉각시키는 것으로, 공조장치(10)의 냉매 일부를 분기하는 분기라인(22)과, 분기된 냉매를 감압,팽창시키는 배터리냉각용 팽창밸브(24)와, 감압,팽창된 냉매를 도입하여 냉기를 발생시키는 칠러(25)와, 칠러(25)에서 발생된 냉기를 배터리(B)에 전달하는 배터리측 냉각수순환라인(26)을 포함한다.The battery cooling device 20 cools the battery B by using the refrigerant of the air conditioner 10, and depressurizes the branch line 22 for branching part of the refrigerant in the air conditioner 10 and the branched refrigerant. ,Battery cooling expansion valve 24 to expand, a chiller 25 for generating cold air by introducing a reduced pressure and expanded refrigerant, and battery-side cooling water that delivers cold air generated from the chiller 25 to the battery B It includes a circulation line 26.

특히, 배터리측 냉각수순환라인(26)은, 워터펌프(27)를 갖추고 있으며, 칠러(25)와 배터리(B) 사이에서 냉각수를 순환시킨다. 따라서, 칠러(25)에서 발생된 냉기를 배터리(B)에 전달하여 상기 배터리(B)를 냉각시킨다.In particular, the battery-side cooling water circulation line 26 is equipped with a water pump 27, and circulates the cooling water between the chiller 25 and the battery B. Accordingly, the cold air generated by the chiller 25 is delivered to the battery B to cool the battery B.

전장부품모듈 냉각장치(30)는, 전장부품모듈측 냉각수순환라인(32)과 워터펌프(34)와 라디에이터(35)를 갖추고 있으며, 냉각수를 라디에이터(35)와 전장부품모듈(C) 사이에서 순환시키면서 상기 전장부품모듈(C)을 냉각시킨다.The electrical component module cooling device 30 is equipped with a cooling water circulation line 32 on the electrical component module side, a water pump 34, and a radiator 35, and the cooling water is supplied between the radiator 35 and the electrical component module C. While circulating, the electronic component module (C) is cooled.

다음으로, 본 발명에 따른 차량 열관리 시스템의 특징부를 도 2와 도 3을 참조하여 상세하게 설명한다.Next, features of the vehicle thermal management system according to the present invention will be described in detail with reference to FIGS. 2 and 3.

먼저, 도 2를 참조하면, 본 발명의 열관리 시스템은, 배터리측 냉각수순환라인(26)의 냉각수를 독립적으로 냉각시키기 위한 라디에이터(50)와, 배터리측 냉각수순환라인(26)의 냉각수를 필요에 따라 선택적으로 상기 라디에이터(50)측으로 순환시키는 냉각수 흐름제어부(60)를 더 구비한다.First, referring to Figure 2, the thermal management system of the present invention, a radiator 50 for independently cooling the cooling water of the cooling water circulation line 26 on the battery side, and the cooling water of the cooling water circulation line 26 on the battery side as needed. Accordingly, a cooling water flow control unit 60 selectively circulating toward the radiator 50 is further provided.

라디에이터(50)는, 내부유로를 갖추고 있는 것으로, 배터리측 냉각수순환라인(26)의 냉각수를 도입한 후, 주변의 공기와 열교환시켜 냉각시킨다. 따라서, 냉각된 냉각수가 배터리측 냉각수순환라인(26)의 배터리(B)로 순환되면서 상기 배터리(B)를 냉각시킬 수 있게 한다.The radiator 50 has an internal flow path, and after introducing the cooling water from the battery-side cooling water circulation line 26, it is cooled by heat exchange with the surrounding air. Accordingly, the cooled cooling water is circulated to the battery B of the battery-side cooling water circulation line 26 to cool the battery B.

여기서, 배터리측 냉각수순환라인(26)의 라디에이터(50)는, 상기 전장부품모듈측 냉각수순환라인(32)의 라디에이터(35)와 공용의 몸체를 갖도록 구성된다.Here, the radiator 50 of the battery-side cooling water circulation line 26 is configured to have a body common to the radiator 35 of the cooling water circulation line 32 on the electronic component module side.

이때, 배터리측 냉각수순환라인(26)의 라디에이터(50)와, 전장부품모듈측 냉각수순환라인(32)의 라디에이터(35)가 공용으로 사용하고 있는 공용 몸체(70)는, 도 3에 도시된 바와 같이, 배터리측 냉각수순환라인(26)의 냉각수가 순환될 수 있는 배터리 냉각 영역부(72)와, 전장부품모듈측 냉각수순환라인(32)의 냉각수가 순환될 수 있는 전장부품모듈 냉각 영역부(74)가 각각 구분되게 형성되어 있으며, 이들, 각 영역부(72, 74)들을 통해, 배터리측 냉각수순환라인(26)의 냉각수와 전장부품모듈측 냉각수순환라인(32)의 냉각수는 각각 개별적으로 냉각된다.At this time, the radiator 50 of the cooling water circulation line 26 on the battery side and the radiator 35 of the cooling water circulation line 32 on the electric component module side are commonly used as the common body 70 shown in FIG. As shown, the battery cooling area part 72 through which the cooling water of the battery-side cooling water circulation line 26 can be circulated, and the electronic component module cooling area part through which the cooling water of the cooling water circulation line 32 on the electronic component module side can circulate (74) are formed separately, and through these, each area part (72, 74), the cooling water of the cooling water circulation line 26 on the battery side and the cooling water of the cooling water circulation line 32 on the electronic component module are individually Is cooled down.

냉각수 흐름제어부(60)는, 도 2에 도시된 바와 같이, 배터리(B)로부터 배출된 배터리측 냉각수순환라인(26)의 냉각수를 바이패스하는 바이패스 밸브(62)와, 바이패스된 냉각수를 라디에이터(50)에 도입시키는 도입라인(64)과, 라디에이터(50)를 통과한 냉각수를 다시 배터리(B)의 입구측으로 리턴시키는 리턴라인(66)을 포함한다.The cooling water flow control unit 60, as shown in Figure 2, the bypass valve 62 for bypassing the cooling water of the battery-side cooling water circulation line 26 discharged from the battery B, and the bypassed cooling water. An introduction line 64 introduced into the radiator 50 and a return line 66 returning the coolant that has passed through the radiator 50 back to the inlet side of the battery B are included.

특히, 바이패스 밸브(62)는, 공조장치(10)의 냉매를 이용할 수 없는 조건, 예를 들면, 공조장치(10)의 오프(OFF) 시에, 상기 배터리측 냉각수순환라인(26)의 냉각수를 라디에이터(50)측으로 바이패스한다.In particular, the bypass valve 62 is a condition in which the refrigerant of the air conditioner 10 cannot be used, for example, when the air conditioner 10 is turned off, the battery side cooling water circulation line 26 is The cooling water is bypassed to the radiator 50 side.

따라서, 공조장치(10)의 냉매를 이용할 수 없는 조건에서, 상기 배터리측 냉각수순환라인(26)의 냉각수가 상기 라디에이터(50)측으로 순환되면서 냉각될 수 있게 하고, 이렇게 냉각된 냉각수가 배터리(B)로 도입되면서 상기 배터리(B)를 냉각시킬 수 있게 한다.Accordingly, under the condition that the refrigerant of the air conditioner 10 is not available, the cooling water of the battery-side cooling water circulation line 26 is circulated to the radiator 50 to be cooled, and the cooling water thus cooled is ) To allow the battery (B) to be cooled.

한편, 상기 바이패스 밸브(62)는, 공조장치(10)의 냉매를 이용할 수 있는 조건, 예를 들면, 공조장치(10)의 온(ON) 시에는, 라디에이터(50)측으로의 냉각수 바이패스를 중단한다.On the other hand, the bypass valve 62 is a condition in which the refrigerant of the air conditioner 10 can be used, for example, when the air conditioner 10 is turned on, the cooling water bypasses the radiator 50 side. Stop.

따라서, 공조장치(10)의 냉매를 이용할 수 있는 조건에서는, 배터리측 냉각수순환라인(26)의 냉각수가 칠러(25)와 배터리(B) 사이에서만 순환되면서 상기 배터리(B)를 냉각시킬 수 있게 한다.Therefore, under the condition that the refrigerant of the air conditioner 10 can be used, the cooling water of the battery-side cooling water circulation line 26 is circulated only between the chiller 25 and the battery B, so that the battery B can be cooled. do.

이와 같은 구성을 갖는 본 발명의 열관리 시스템에 의하면, 별도의 라디에이터(50)를 통해 배터리측 냉각수순환라인(26)의 냉각수를 독립적으로 냉각시키는 구조이므로, 발열온도가 각기 다른 배터리(B)와 전장부품모듈(C)을 각각 독립적인 냉각수 순환 구조로 냉각시킬 수 있다.According to the thermal management system of the present invention having such a configuration, since the cooling water of the battery-side cooling water circulation line 26 is independently cooled through a separate radiator 50, the battery B and the electric length have different heating temperatures. Each component module (C) can be cooled with an independent cooling water circulation structure.

또한, 발열온도가 각기 다른 배터리(B)와 전장부품모듈(C)을 독립적인 냉각수 순환구조로 냉각시킬 수 있으므로, 단일의 냉각수 순환 구조를 통해 배터리(B)와 전장부품모듈(C)을 한꺼번에 냉각시키는 종래의 기술과 달리, 배터리(B)와 전장부품모듈(C)의 냉각효율을 현저하게 개선시킬 수 있다.In addition, since the battery (B) and the electronic component module (C) with different heating temperatures can be cooled by an independent cooling water circulation structure, the battery (B) and the electronic component module (C) can be combined at once through a single cooling water circulation structure. Unlike the conventional technology for cooling, the cooling efficiency of the battery B and the electric component module C can be remarkably improved.

특히, 발열온도가 상대적으로 낮은 배터리(B)의 경우, 독립적인 냉각수 순환구조로 냉각되므로, 발열온도가 상대적으로 높은 전장부품모듈(C)에 영향받지 않는다. 따라서, 전장부품모듈(C)과 관계없이 효율좋게 냉각된다.In particular, in the case of the battery B having a relatively low heating temperature, since it is cooled by an independent cooling water circulation structure, it is not affected by the electronic component module C having a relatively high heating temperature. Therefore, it is efficiently cooled regardless of the electric component module (C).

이상에서는 본 발명의 바람직한 실시예를 예시적으로 설명하였으나, 본 발명의 범위는 이와 같은 특정 실시예에만 한정되는 것은 아니며, 특허청구범위에 기재된 범주내에서 적절하게 변경 가능한 것이다.In the above, preferred embodiments of the present invention have been exemplarily described, but the scope of the present invention is not limited to such specific embodiments, and can be appropriately changed within the scope described in the claims.

10: 공조장치 20: 배터리 냉각장치
22: 분기라인(Line) 24: 배터리냉각용 팽창밸브(Valve)
25: 칠러(Chiller) 26: 배터리측 냉각수순환라인
30: 전장부품모듈 냉각장치 32: 전장부품모듈측 냉각수순환라인
34: 워터펌프(Water Pump) 35: 라디에이터(Radiator)
50: 라디에이터(Radiator) 60: 냉각수 흐름제어부
62: 바이패스 밸브(Bypass Valve) 64: 도입라인
66: 리턴라인(Return Line) 70: 공용 몸체
72: 배터리 냉각 영역부 74: 전장부품모듈 냉각 영역부
B: 배터리(Battery) C: 전방부품모듈(Module)10: air conditioning system 20: battery cooling system
22: branch line 24: expansion valve for battery cooling
25: chiller 26: cooling water circulation line on the battery side
30: electronic component module cooling device 32: cooling water circulation line on the electronic component module side
34: water pump 35: radiator
50: radiator 60: cooling water flow control unit
62: bypass valve 64: introduction line
66: Return Line 70: Common body
72: battery cooling area unit 74: electronic component module cooling area unit
B: Battery C: Front Component Module

Claims (6)

차량에 설치된 복수의 냉각대상물들을 수냉식으로 냉각시키는 수냉식 냉각장치를 구비하는 차량의 열관리 시스템에 있어서,
상기 수냉식 냉각장치는,
상기 냉각대상물과 라디에이터(35, 50) 사이에서 냉각수를 순환시키는 냉각수순환라인(26, 32)을 각각 가지며;
상기 냉각수순환라인(26, 32)은,
발열온도가 각기 다른 냉각대상물을 각각 독립적으로 냉각시킬 수 있도록, 상기 각 냉각대상물별로 각각 독립적인 냉각수 순환 구조를 갖는 것을 특징으로 하는 차량의 열관리 시스템.In the vehicle thermal management system having a water-cooled cooling device for cooling a plurality of cooling targets installed in the vehicle by water cooling,
The water-cooled cooling device,
A cooling water circulation line (26, 32) for circulating cooling water between the cooling object and the radiators (35, 50), respectively;
The cooling water circulation line (26, 32),
A vehicle thermal management system, characterized in that each cooling object has an independent cooling water circulation structure so that each cooling object having different heating temperatures can be independently cooled. 제 1항에 있어서,
상기 수냉식 냉각장치는,
배터리(B)와 라디에이터(50) 사이에서 냉각수를 순환시켜, 상기 배터리(B)를 냉각시키는 배터리측 냉각수순환라인(26)과;
전장부품모듈(C)와 라디에이터(35) 사이에서 냉각수를 순환시켜, 상기 전장부품모듈(C)을 냉각시키는 전장부품모듈측 냉각수순환라인(32)을 포함하며;
상기 배터리측 냉각수순환라인(26)과 상기 전장부품모듈측 냉각수순환라인(32)은, 상기 배터리(B)와 전장부품모듈(C)을 각각 독립적으로 냉각시킬 수 있도록, 상기 배터리(B)와 전장부품모듈(C)에 각각 대응하여, 독립적인 냉각수 순환 구조를 갖는 것을 특징으로 하는 차량의 열관리 시스템.The method of claim 1,
The water-cooled cooling device,
A battery-side cooling water circulation line 26 for cooling the battery B by circulating cooling water between the battery B and the radiator 50;
And a cooling water circulation line 32 on the electric component module side for circulating coolant between the electric component module C and the radiator 35 to cool the electric component module C;
The battery-side cooling water circulation line 26 and the electrical component module-side cooling water circulation line 32 may independently cool the battery B and the electrical component module C. A vehicle thermal management system, characterized in that it has an independent cooling water circulation structure, corresponding to each of the electrical component modules (C). 제 2항에 있어서,
상기 배터리측 냉각수순환라인(26)의 라디에이터(50)와, 상기 전장부품모듈측 냉각수순환라인(32)의 라디에이터(35)는, 공용의 몸체(70)를 가지며;
상기 공용의 몸체(70)는,
상기 배터리측 냉각수순환라인(26)의 냉각수가 순환될 수 있는 배터리 냉각 영역부(72)와;
상기 전장부품모듈측 냉각수순환라인(32)의 냉각수가 순환될 수 있는 전장부품모듈 냉각 영역부(74)가 각각 구분되게 형성되는 것을 특징으로 하는 차량의 열관리 시스템.The method of claim 2,
The radiator 50 of the battery-side cooling water circulation line 26 and the radiator 35 of the cooling water circulation line 32 on the electric component module side have a common body 70;
The common body 70,
A battery cooling region 72 through which the cooling water of the battery-side cooling water circulation line 26 is circulated;
The vehicle thermal management system, characterized in that the electrical component module cooling region 74 through which the cooling water of the cooling water circulation line 32 on the electrical component module side can be circulated is formed to be separated. 제 2항 또는 제 3항에 있어서,
상기 배터리측 냉각수순환라인(26)은,
공조장치(10)의 냉매를 도입하여 냉기를 발생시키는 칠러(25)를 더 포함하며;
상기 칠러(25)와 상기 배터리(B) 사이에서 냉각수를 순환시켜, 상기 칠러(25)의 냉기로 상기 배터리(B)를 냉각시키는 것을 특징으로 하는 차량의 열관리 시스템.The method of claim 2 or 3,
The battery-side cooling water circulation line 26,
It further comprises a chiller 25 for generating cold air by introducing a refrigerant from the air conditioner 10;
A vehicle thermal management system, characterized in that cooling water is circulated between the chiller (25) and the battery (B) to cool the battery (B) with the cold air of the chiller (25). 제 4항에 있어서,
상기 배터리측 냉각수순환라인(26)의 냉각수를, 상기 배터리(B)와 칠러(25) 사이에서 순환시키거나 또는 상기 배터리(B)와 라디에이터(50) 사이에서 순환시킬 수 있도록, 상기 배터리측 냉각수순환라인(26)의 냉각수 흐름을 제어하는 냉각수 흐름제어부(60)를 더 구비하며;
상기 냉각수 흐름제어부(60)는, 상기 칠러(25)의 순환 냉각수와, 상기 라디에이터(50)의 순환 냉각수 중, 어느 하나의 냉각수가 상기 배터리(B)를 선택적으로 냉각시킬 수 있도록 하는 것을 특징으로 하는 차량의 열관리 시스템.The method of claim 4,
The battery-side cooling water so that the cooling water of the battery-side cooling water circulation line 26 can be circulated between the battery B and the chiller 25 or between the battery B and the radiator 50. It further comprises a cooling water flow control unit 60 for controlling the flow of the cooling water in the circulation line 26;
The cooling water flow control unit 60 is characterized in that any one of the circulating cooling water of the chiller 25 and the circulating cooling water of the radiator 50 can selectively cool the battery B. Vehicle thermal management system. 제 5항에 있어서,
상기 냉각수 흐름제어부(60)는,
상기 배터리(B)를 통과한 상기 배터리측 냉각수순환라인(26)의 냉각수를 상기 라디에이터(50)측으로 바이패스할 수 있는 바이패스 밸브(62)와;
상기 라디에이터(50)를 통과한 냉각수를 상기 배터리(B)측으로 리턴시키는 리턴라인(66)을 포함하며;
상기 바이패스 밸브(62)는,
상기 공조장치(10)의 온(ON) 시에는, 상기 칠러(25)를 통과한 냉각수의 상기 배터리(B)측 도입을 허용하여, 상기 칠러(25)와 배터리(B) 사이에서의 냉각수 순환을 허용하고,
상기 공조장치(10)의 오프(OFF) 시에는, 상기 배터리(B)를 통과한 냉각수를 상기 라디에이터(50)측으로 바이패스하여, 상기 배터리(B)와 라디에이터(50) 사이에서의 냉각수 순환을 허용하는 것을 특징으로 하는 차량의 열관리 시스템.



The method of claim 5,
The cooling water flow control unit 60,
A bypass valve 62 capable of bypassing the cooling water of the battery-side cooling water circulation line 26 that has passed through the battery B toward the radiator 50;
And a return line 66 for returning the coolant passing through the radiator 50 to the battery B side;
The bypass valve 62,
When the air conditioner 10 is turned on, the cooling water that has passed through the chiller 25 is allowed to be introduced to the battery B side, and the cooling water is circulated between the chiller 25 and the battery B. To allow,
When the air conditioner 10 is turned off, the coolant that has passed through the battery B is bypassed to the radiator 50 to circulate the coolant between the battery B and the radiator 50. Vehicle thermal management system, characterized in that to allow.



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