KR102276253B1 - Integrated thermal management circuit for vehicle - Google Patents

Abstract

a battery line in which the cooling water flowing therein is heat-exchangeably connected with the high voltage battery, and having a first pump and a first radiator for flowing the cooling water therein; a heating line branched from the battery line at a point downstream of the first pump, provided with a heating core for indoor air conditioning, branched at a point downstream of the heating core for indoor air conditioning, and joined to the battery line at a point upstream and downstream of the high voltage battery; And it is located at the branching point from the battery line to the heating line to control the flow rate of the coolant flowing from the battery line to the heating line, or located at the point where the heating line joins the battery line to the upstream and downstream points of the high voltage battery. An integrated thermal management circuit for a vehicle including a first control valve for controlling a flow rate of a branched coolant is introduced.

Description

INTEGRATED THERMAL MANAGEMENT CIRCUIT FOR VEHICLE

The present invention relates to an integrated thermal management circuit of a vehicle, and more particularly, to an integrated thermal management circuit in which thermal efficiency is improved by integrating coolant flows in an electronic component circuit and a battery circuit.

Recently, electric vehicles are emerging as a social issue in order to implement environmentally friendly technologies and solve problems such as energy depletion. Electric vehicles operate using a motor that receives electricity from a battery and outputs power. Accordingly, there is no emission of carbon dioxide, the noise is very small, and the energy efficiency of the motor is higher than that of the engine, so it is in the spotlight as an eco-friendly vehicle.

A key technology for realizing such an electric vehicle is a technology related to a battery module, and recent studies on light weight, miniaturization, and short charging time of batteries are being actively conducted. Battery modules must be used in an optimal temperature environment to maintain optimal performance and long lifespan. However, it is difficult to use it in an optimal temperature environment due to heat generated during operation and external temperature change.

Recently, an integrated thermal management system that integrates the heating and cooling system of the battery with an air conditioning system for indoor air conditioning of a vehicle has been established. According to such an integrated heat management system, waste heat recovery and outdoor air cooling can be controlled using a single valve by using heat exchange through a chiller.

The matters described as the background art above are only for improving the understanding of the background of the present invention, and should not be accepted as acknowledging that they correspond to the prior art already known to those skilled in the art.

KR 10-1448656 B1

The present invention has been proposed to solve this problem, and it is intended to provide an integrated thermal management circuit for realizing indoor air conditioning using a refrigerant line connected to a battery circuit for cooling a battery and an electric component circuit for cooling an electric component to be heat-exchangeable. to be.

In an integrated thermal management circuit of a vehicle according to the present invention for achieving the above object, the coolant flowing therein is heat-exchangeable with the high-voltage battery, and a battery line provided with a first pump and a first radiator for flowing the coolant therein ; a heating line branched from the battery line at a point downstream of the first pump, provided with a heating core for indoor air conditioning, branched at a point downstream of the heating core for indoor air conditioning, and joined to the battery line at a point upstream and downstream of the battery; and a branching point from the battery line to the heating line to control the flow rate of the coolant flowing from the battery line to the heating line, or a location for merging from the heating line to the battery line to branch to an upstream point and a downstream point of the battery It includes a; a first control valve for controlling the flow rate of the cooling water.

The first control valve may be a multi-port valve that simultaneously adjusts the flow rate of the coolant flowing from the battery line to the heating line and the flow rate of the coolant branched to the upstream and downstream points of the battery.

The first control valve has an inlet connected to a point downstream of the first pump in the battery line and a point downstream of the heating core for indoor air conditioning in the heating line, and the outlet is connected to an upstream point and downstream point of the high voltage battery in the battery line and indoor air conditioning heating in the heating line. It may be a 5-way valve connected to a point upstream of the core.

The first control valve has an inlet connected to the downstream point of the first pump of the battery line, and an outlet connected to an upstream point of the heating core for indoor air conditioning of the heating line and an upstream point of the high voltage battery of the battery line, and a heating core for indoor air conditioning of the heating line. The inlet connected to the downstream point may be a 6-way valve branched to the outlet connected to the high voltage battery upstream point and downstream point of the battery line.

A bypass line branched from the battery line at a point downstream of the high voltage battery and joined to the battery line at a point upstream of the first pump by bypassing the first radiator, further comprising, and joined to the battery line at a point downstream of the battery The heating line may be joined as a bypass line.

A second control valve for allowing or blocking the flow of the coolant flowing to the bypass line may be provided at a branch point or bypass line from the battery line to the bypass line.

The heating line may be provided with a water heating heater located at an upstream point of the heating core for indoor air conditioning to heat the internal cooling water.

an integrated line branching from the battery line and rejoining the battery line by bypassing the first radiator; a refrigerant line in which a refrigerant flows therein, a cooling core for indoor air conditioning is provided, and a water-cooling condenser connected to the heating line so as to be heat-exchangeable at an upstream point of the heating core for indoor air conditioning; a chiller connected to the refrigerant line to bypass the cooling core for indoor air conditioning, and the cooling water of the integrated line and the refrigerant of the refrigerant line are connected to each other so as to exchange heat; and a third control valve connected to the battery line and the integrated line at the same time to control the flow of coolant in the integrated line passing through the chiller.

The cooling water flowing therein is connected to heat exchange with the electrical components, and an electrical component line having a second radiator is further included, and the integrated line is branched and merged from the electrical component line and the battery line, respectively, and along the flow direction As it flows, it branches back into the electric component line and the battery line, and the third control valve may be simultaneously connected with the battery line, the electric component line, and the integrated line.

A reservoir tank in which the coolant that has passed through the first radiator in the battery line and the coolant that has passed through the second radiator in the electric component line flow in a separated state from each other, the battery line passing through the first radiator and the second radiator Cooling water of the electric component line passing through may each pass through the reservoir tank and flow to the third control valve.

A bypass line branched from the battery line at a point downstream of the high-voltage battery and joined to the battery line at an upstream point of the first pump by bypassing the first radiator; further comprising, the bypass line is connected to the reservoir tank and connected to the battery line can be joined.

A shut-off valve for blocking the reverse flow of the coolant at a location branching from the electric component line or the battery line and joining the integrated line; may be further included.

The third control valve has an inlet connected to the integrated line, the first radiator side of the battery line, and the second radiator side of the electric component line, and the outlet is connected to the high voltage battery side of the battery line and the electric component side of the electric component line 5- It can be a way valve.

The third control valve has an inlet connected to the integrated line branched from the upstream point, the first radiator side of the battery line, and the second radiator side of the electric component line, and the outlet port is connected to the high voltage battery side of the battery line and the electric component of the electric component line. It can be a 6-way valve connected to the side.

It may further include; a non-return valve located in the integrated line connected to the high voltage battery side of the battery line through the third control valve among the integrated lines branched from the upstream point of the third control valve, and blocking the reverse flow of the coolant.

The first control valve has an inlet connected to the downstream point of the first pump of the battery line, and an outlet connected to an upstream point of the heating core for indoor air conditioning of the heating line and an upstream point of the high voltage battery of the battery line, and a heating core for indoor air conditioning of the heating line. The inlet connected to the downstream point is a 6-way valve branched to the outlet connected to the upstream point and the downstream point of the high voltage battery of the battery line, and the outlet of the first control valve connected to the downstream point of the high voltage battery in the battery line is upstream of the third control valve It may be connected to an integrated line connected to the high voltage battery side of the battery line through the third control valve among the integrated lines branched from the branch point or to a downstream point of the first radiator of the battery line.

a first expansion valve provided in the refrigerant line at an upstream point of the chiller; a second expansion valve provided in the refrigerant line at an upstream point of the cooling core for indoor air conditioning; and controlling the first control valve so that, in the first mode of raising the temperature of the battery by using the waste heat of the electric component, the cooling water of the battery line flows to the heating line and the cooling water of the heating line flows into the battery line at an upstream point of the battery, A controller that controls the third control valve so that the coolant of the electrical component line flows to the chiller through the integrated line, and controls the opening and closing of the first expansion valve or the second expansion valve so that the coolant of the coolant line flows to the chiller; can do.

a first expansion valve provided in the refrigerant line at an upstream point of the chiller; a second expansion valve provided in the refrigerant line at an upstream point of the cooling core for indoor air conditioning; and controlling the first control valve so that, in the second mode of heating the room using waste heat of electric components, the cooling water of the battery line flows to the heating line and the cooling water of the heating line flows into the battery line at a point downstream of the battery, A controller that controls the third control valve so that the coolant of the electrical component line flows to the chiller through the integrated line, and controls the opening and closing of the first expansion valve or the second expansion valve so that the coolant of the coolant line flows to the chiller; can do.

a first expansion valve provided in the refrigerant line at an upstream point of the chiller; a second expansion valve provided in the refrigerant line at an upstream point of the cooling core for indoor air conditioning; and in the third mode in which the battery is cooled by the chiller, the first control valve is controlled so that the cooling water of the battery line bypasses the heating line and flows to the upstream point of the high voltage battery, and the cooling water of the battery line goes to the chiller through the integrated line. It may further include a controller that controls the third control valve to flow, and controls opening and closing of the first expansion valve or the second expansion valve so that the refrigerant in the refrigerant line flows to the chiller.

a first expansion valve provided in the refrigerant line at an upstream point of the chiller; and a second expansion valve provided in the refrigerant line at an upstream point of the cooling core for indoor air conditioning, wherein, in the fourth mode of cooling the battery and the room at the same time, the cooling water of the battery line bypasses the heating line to the high voltage battery controls the first control valve to flow to an upstream point of It may further include a controller for controlling the opening and closing of the first expansion valve or the second expansion valve.

The controller may further include a controller that controls the third control valve to block the flow of the coolant in the integrated line in the fifth mode in which waste heat of the electric components or the high voltage battery is not recovered.

According to the integrated thermal management circuit of the vehicle of the present invention, there is an effect of selectively recovering waste heat of electric components and high voltage batteries with only a single chiller.

In addition, it has the effect of controlling the recovery and cooling of waste heat of the electronic components and the high voltage battery through a single control valve.

Accordingly, required parts are reduced, have the effect of space utilization and package aspect, and have the effect of reducing the manufacturing cost.

1 is a block diagram of an integrated thermal management circuit of a vehicle according to an embodiment of the present invention.
2 to 9 are diagrams illustrating a configuration of an integrated thermal management circuit of a vehicle according to another embodiment of the present invention.
10 to 14 are diagrams illustrating various control modes of the integrated thermal management circuit of a vehicle according to an embodiment of the present invention.

Specific structural or functional descriptions of the embodiments of the present invention disclosed in the present specification or application are only exemplified for the purpose of describing the embodiments according to the present invention, and the embodiments according to the present invention may be implemented in various forms. and should not be construed as being limited to the embodiments described in the present specification or application.

Since the embodiment according to the present invention can have various changes and can have various forms, specific embodiments are illustrated in the drawings and described in detail in the present specification or application. However, this is not intended to limit the embodiment according to the concept of the present invention with respect to a specific disclosed form, and should be understood to include all changes, equivalents or substitutes included in the spirit and scope of the present invention.

Terms such as first and/or second may be used to describe various elements, but the elements should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another, for example, without departing from the scope of rights according to the inventive concept, a first component may be termed a second component, and similarly The second component may also be referred to as the first component.

When a component is referred to as being “connected” or “connected” to another component, it is understood that the other component may be directly connected or connected to the other component, but other components may exist in between. it should be On the other hand, when it is said that a certain element is "directly connected" or "directly connected" to another element, it should be understood that no other element is present in the middle. Other expressions describing the relationship between elements, such as "between" and "immediately between" or "neighboring to" and "directly adjacent to", should be interpreted similarly.

The terms used herein are used only to describe specific embodiments, and are not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In this specification, terms such as "comprises" or "have" are intended to designate that the described features, numbers, steps, operations, components, parts, or combinations thereof exist, and include one or more other features or numbers. , it should be understood that it does not preclude the existence or addition of steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries should be interpreted as meanings consistent with the context of the related art, and unless explicitly defined in the present specification, they are not to be interpreted in an ideal or excessively formal meaning. .

Hereinafter, the present invention will be described in detail by describing preferred embodiments of the present invention with reference to the accompanying drawings. Like reference numerals in each figure indicate like elements.

1 is a block diagram of an integrated thermal management circuit of a vehicle according to an embodiment of the present invention.

Referring to FIG. 1 , in the integrated thermal management circuit of a vehicle according to an embodiment of the present invention, the coolant flowing therein is connected to the high voltage battery 110 so as to be heat-exchangeable, and a first pump 130 for flowing the coolant therein. and a battery line 100 provided with a first radiator 120 ; Branched from the battery line 100 at a downstream point of the first pump 130, provided with a heating core 210 for indoor air conditioning, and branched from a downstream point of the heating core 210 for indoor air conditioning to a high voltage battery 110 a heating line 200 joined to the battery line 100 at an upstream point and a downstream point of the; And it is located at a branching point from the battery line 100 to the heating line 200 to control the flow rate of the coolant flowing from the battery line 100 to the heating line 200, or from the heating line 200 to the battery line ( 100), the first control valve 300 is positioned at the junction to control the flow rate of the coolant branched to the upstream point and the downstream point of the high voltage battery 110; may include.

The battery line 100 is provided with a first pump 130 , and the coolant flowing by the first pump 130 exchanges heat with the high voltage battery 110 , and flows to the first radiator 120 to exchange heat with the outside. can The battery line 100 may be branched into the heating line 200 at a point downstream of the first pump 130 .

A heating core 210 for indoor air conditioning is provided in the heating line 200 , and the cooling water of the battery line 100 flowing by the first pump 130 may flow into the heating line 200 . The heating line 200 may be joined to the battery line 100 through the first control valve 300 .

The first control valve 300 may control the flow rate of the coolant flowing from the battery line 100 to the heating line 200 and at the same time control the flow rate of the coolant branched to the upstream point and the downstream point of the high voltage battery 110 . have. That is, the heating line 200 may be branched from the first control valve 300 and joined into the battery line 100 at an upstream point and a downstream point of the high voltage battery 110 .

In particular, the first control valve 300 controls the flow rate of the coolant flowing from the battery line 100 to the heating line 200 and the flow rate of the coolant branching to the upstream and downstream points of the high voltage battery 110 at the same time. It may be a port valve.

More specifically, in one embodiment, the first control valve 300 has an inlet at a downstream point of the first pump 130 of the battery line 100 and a downstream point of the heating core 210 for indoor air conditioning of the heating line 200 . The outlet may be a 5-Way valve connected to the upstream point and downstream point of the high voltage battery 110 of the battery line 100 and the upstream point of the indoor air conditioning heating core 210 of the heating line 200 .

2 to 9 are diagrams illustrating a configuration of an integrated thermal management circuit of a vehicle according to another embodiment of the present invention.

Referring to FIG. 2 , in another embodiment, the first control valve 300 has an inlet connected to a downstream point of the first pump 130 of the battery line 100 , a heating core 210 for indoor air conditioning of the heating line 200 . It branches to an upstream point and an outlet connected to an upstream point of the high voltage battery 110 of the battery line 100, and an inlet connected to a downstream point of the indoor air conditioning heating core 210 of the heating line 200 is the high voltage of the battery line 100. It may be a 6-way valve branched to an outlet connected to a point upstream and downstream of the battery 110 .

A bypass line branched from the battery line 100 at a point downstream of the high voltage battery 110 and joined to the battery line 100 at an upstream point of the first pump 130 by bypassing the first radiator 120 ( 400); further, the heating line 200 joined to the battery line 100 at a downstream point of the high voltage battery 110 may be joined to the bypass line 400 .

The bypass line 400 is configured such that the coolant that has passed through the high voltage battery 110 bypasses the first radiator 120 and immediately joins the upstream point of the first pump 130 . A location where the heating line 200 joins the downstream point of the high voltage battery 110 may be the bypass line 400 .

3 to 4 , at a point branching from the battery line 100 to the bypass line 400 , or at the bypass line 400 , there is an agent for allowing or blocking the flow of the coolant flowing into the bypass line 400 . Two control valves 410 may be provided.

In particular, as shown in FIG. 3 , the second control valve 410 includes the coolant flowing into the bypass line 400 at the branching point from the battery line 100 to the bypass line 400 and the first radiator ( 120) may be a 3-Way valve that can adjust the ratio between the coolant flowing to the water.

In addition, as shown in FIG. 4 , the second control valve 410 may be a 2-way valve located in the bypass line 400 . The second control valve 410 may be a check valve designed to be opened only when the pressure difference is greater than or equal to a predetermined pressure difference, or may be an On/Off valve whose On/Off is controlled by the controller 1000 .

Referring to FIG. 5 , the bypass line 400 may be deleted, and when a temperature increase of the high voltage battery 110 is required, the cooling water may be circulated through the integrated line 900 connected to the chiller 910 . Also, the heating line 200 may be directly connected to the battery line 100 at a point downstream of the high voltage battery 110 .

The heating line 200 may be provided with a water heating heater 220 positioned at an upstream point of the heating core 210 for indoor air conditioning to heat the cooling water therein. The water heating heater 220 may be located at a point downstream of the water cooling condenser 620 in the heating line 200 to further heat the cooling water heated in the water cooling condenser 620 .

an integrated line 900 branched from the battery line 100 and joined back into the battery line 100 by bypassing the first radiator 120 ; A refrigerant line in which refrigerant flows inside, a cooling core 610 for indoor air conditioning is provided, and a water cooling condenser 620 connected to the heating line 200 so as to be heat-exchangeable at an upstream point of the heating core 210 for indoor air conditioning. (600); a chiller 910 that is connected to bypass the cooling core 610 for indoor air conditioning in the refrigerant line 600 , and the coolant of the integrated line 900 and the refrigerant of the refrigerant line 600 are connected to each other so as to exchange heat; and a third control valve 500 connected to the battery line 100 and the integrated line 900 at the same time to control the flow of the coolant in the integrated line 900 passing through the chiller 910 .

The cooling water flowing therein is heat-exchangeably connected with the electric component 810 and the electric component line 800 provided with the second radiator 820; further including, the integrated line 900 is the electric component line 800 ) and the battery line 100 are respectively branched and merged, and while flowing along the flow direction, branch again into the electric component line 800 and the battery line 100 , and the third control valve 500 is the battery line 100 . , may be simultaneously connected to the electric component line 800 and the integrated line 900 .

A second pump 830 is provided in the electric component line 800 , and the cooling water flowing by the second pump 830 exchanges heat with the electric component line 800 , and flows to the second radiator 820 , and communicates with the outside. can be heat exchanged.

Here, the electric component 810 may be used as a generic term for components that generate heat according to the driving of the vehicle, such as a motor driving the vehicle, an inverter, and a converter.

The integrated line 900 may be a line branching from the electrical component line 800 to a downstream point of the electrical component 810 and from the battery line 100 to a downstream point of the high voltage battery 110 . The integrated line 900 may be joined back to the electronic component line 800 and the battery line 100 through the control valve. In particular, the integrated line 900 may be branched and connected to an upstream point of the first pump 130 of the battery line 100 and the second pump 830 of the electric component line 800 .

The chiller 910 is provided in the integrated line 900 , and can recover waste heat of the electric component line 800 or the waste heat of the battery line 100 using the refrigerant of the refrigerant line 600 , and accordingly, the electric component The cooling water of the line 800 and the battery line 100 may be cooled.

A first expansion valve 650 may be provided in the chiller 910 , and a second expansion valve 660 may be provided in the cooling core 610 for indoor air conditioning.

The refrigerant line 600 may include both a water-cooled condenser 620 for cooling the refrigerant compressed by the compressor 630 with cooling water and an outdoor air condenser 640 for cooling to the outside air.

Referring to FIG. 6 , the electric component line 800 may be circulated separately from the battery line 100 and may not be connected to the integrated line 900 . In this case, the refrigerant line 600 may recover only the waste heat of the high voltage battery 110 without recovering the waste heat of the electric component 810 from the chiller 910 .

Here, the cooling water of the electric component line 800 passing through the second radiator 820 in the third control valve 500 flows back to the electric component 810, the integrated line 900 and the electric component line 800. may not be connected in the third control valve 500 .

Reservoir tank 700 in which the coolant that has passed through the first radiator 120 in the battery line 100 and the coolant that has passed the second radiator 820 in the electric component line 800 flow in a separated state from each other; The cooling water of the battery line 100 passing through the first radiator 120 and the electric component line 800 passing through the second radiator 820 each passes through the reservoir tank 700 and passes through the third control valve ( 500) can flow.

The reservoir tank 700 may have a diaphragm formed therein to form an inner space separated from each other. The cooling water of the battery line 100 and the electric component line 800 may be stored in separate internal spaces, respectively.

The reservoir tank 700 is provided between the first radiator 120 and the first pump 130 of the battery line 100 and between the second radiator 820 and the second pump 830 of the electric component line 800 . can be

A bypass line branched from the battery line 100 at a point downstream of the high voltage battery 110 and joined to the battery line 100 at an upstream point of the first pump 130 by bypassing the first radiator 120 ( 400 ); and the bypass line 400 may be connected to the reservoir tank 700 and joined to the battery line 100 .

Referring to FIG. 7 , the bypass line 400 may be connected to an upstream point of the first pump 130 . In particular, by bypassing the reservoir tank 700 , it may be merged into the battery line 100 between the reservoir tank 700 and the first pump 130 .

Shut-off valves 920 and 930 for blocking the reverse flow of the coolant at positions branched from the electric component line 800 or the battery line 100 and merged into the integrated line 900; may be further included.

The shut-off valves 920 and 930 are provided at a position connected to the integrated line 900 from the first shut-off valve 920 or the battery line 100 provided at a position connected from the electric component line 800 to the integrated line 900 . It may be a second shut-off valve 930.

The first shutoff valve 920 and the second shutoff valve 930 are configured to block the coolant so that the coolant of the electric component line 800 and the battery line 100 does not mix with each other, and allow the coolant to flow in only one direction. It may be a check valve. In particular, the elastic modulus of the spring included therein may be adjusted so that the check valve is opened only when the pressure difference is greater than or equal to a certain level.

As shown in FIGS. 1 to 7 , the third control valve 500 has an inlet through the integrated line 900 , the first radiator 120 side of the battery line 100 , and the second radiator of the electric component line 800 . It may be a 5-Way valve connected to the 820 side and the outlet connected to the high voltage battery 110 side of the battery line 100 and the electric component 810 side of the electric component line 800 .

Referring to FIG. 8 , the third control valve 500 includes the integrated line 900 where the inlet is branched from the upstream point, the first radiator 120 side of the battery line 100 and the second of the electric component line 800 . It may be a 6-way valve connected to the radiator 820 side, and the outlet connected to the high voltage battery 110 side of the battery line 100 and the electrical component 810 side of the electrical component line 800 .

That is, the integrated line 900 may be connected to the third control valve 500 in a state of being branched to both sides so as to be joined to the battery line 100 or to be joined to the electric component line 800 .

In the third control valve 500, the integrated line 900 or the battery line connected to the high voltage battery 110 side of the battery line 100 among the integrated lines 900 branched from the upstream point of the third control valve 500 ( 100), the coolant introduced from the first radiator 120 side is selectively supplied to the high voltage battery 110 side of the battery line 100, and the integrated line 900 branched from the upstream point of the third control valve 500. The cooling water flowing in from the second radiator 820 side of the integrated line 900 connected to the electrical component side of the electrical component line 800 or the electrical component line 800 is selectively the electrical component 810 of the electrical component line 800 ) can be supplied to the side.

It is located in the integrated line 900 connected to the high voltage battery 110 side of the battery line 100 through the third control valve 500 among the integrated lines 900 branched from the upstream point of the third control valve 500, It may further include a non-return valve 940 for blocking the reverse flow of the coolant.

The non-return valve 940 is configured to block the cooling water so that the cooling water of the integrated line 900 connected to the electric component line 800 and the battery line 100 does not mix with each other, and allows the cooling water to flow in only one direction. It may be a check valve. In particular, the elastic modulus of the spring included therein may be adjusted so that the check valve is opened only when the pressure difference is greater than or equal to a certain level.

Referring to FIG. 9 , the first control valve 300 has an inlet connected to a downstream point of the first pump 130 of the battery line 100 at an upstream point of the heating core 210 for indoor air conditioning of the heating line 200 and the battery. The high voltage battery 110 of the battery line 100 is branched to the outlet connected to the upstream point of the high voltage battery 110 of the line 100, and the inlet connected to the downstream point of the indoor air conditioning heating core 210 of the heating line 200. It may be a 6-way valve branched to an outlet connected to an upstream point and a downstream point.

Specifically, the outlet of the first control valve 300 connected to the downstream point of the high voltage battery 110 of the battery line 100 is the third control of the integrated line 900 branched from the upstream point of the third control valve 500 . It may be connected to the integrated line 900 connected to the high voltage battery 110 side of the battery line 100 through the valve 500 .

Alternatively, the outlet of the first control valve 300 connected to the downstream point of the high voltage battery 110 of the battery line 100 is located at the downstream point of the first radiator 120 of the battery line 100 as shown in FIG. 9 . can be connected In particular, the outlet of the first control valve 300 connected to the downstream point of the high voltage battery 110 of the battery line 100 may be directly connected to the reservoir tank 700 .

In particular, among the outlets of the first control valve 300 , the outlet connected to the downstream point of the high voltage battery 110 of the battery line 100 flows into the third control valve 500 through the reservoir tank 700 or the third control It may be introduced into the third control valve 500 through the integrated line 900 branched from the upstream point of the valve 500 to be merged into the battery line 100 .

Here, the bypass line 400 may be directly connected to the integrated line 900 connected to the high voltage battery 110 side of the battery line 100 through the third control valve 500 , and the high voltage battery of the battery line 100 . (110) The outlet of the first control valve 300 connected to the downstream point may be connected to the bypass line (400).

10 to 14 are diagrams illustrating various control modes of the integrated thermal management circuit of a vehicle according to an embodiment of the present invention.

The controller 1000 according to an exemplary embodiment of the present invention includes a non-volatile memory (not shown) configured to store data relating to an algorithm configured to control the operation of various components of the vehicle or software instructions for reproducing the algorithm; It may be implemented through a processor (not shown) configured to perform operations described below using data stored in the corresponding memory. Here, the memory and the processor may be implemented as separate chips. Alternatively, the memory and processor may be implemented as a single chip integrated with each other. A processor may take the form of one or more processors.

Specifically, referring to FIG. 10 , in the first mode in which the controller 1000 heats up the high voltage battery 110 by using the waste heat of the electrical component 810 , the cooling water of the battery line 100 flows to the heating line 200 . The first control valve 300 is controlled so that it flows and the cooling water of the heating line 200 flows to the battery line 100 at an upstream point of the high voltage battery 110, and the cooling water of the electric component line 800 flows into the integrated line ( The third control valve 500 is controlled to flow to the chiller 910 through the 900 , and the first expansion valve 650 or the second expansion valve 500 so that the refrigerant in the refrigerant line 600 flows to the chiller 910 . 660) can be controlled.

Referring to FIG. 11 , in the second mode in which the controller 1000 heats a room using waste heat of the electrical component 810 , the cooling water of the battery line 100 flows to the heating line 200 and the heating line 200 ) controls the first control valve 300 to flow to the battery line 100 at the downstream point of the high voltage battery 110, and the cooling water of the electric component line 800 passes through the integrated line 900 to the chiller ( The third control valve 500 is controlled to flow to the 910), and the opening and closing of the first expansion valve 650 or the second expansion valve 660 is controlled so that the refrigerant in the refrigerant line 600 flows to the chiller 910. can do.

In another embodiment, in the case of the dehumidifying mode for dehumidifying the room, the first expansion valve 650 and the second expansion valve 660 may be controlled to simultaneously perform cooling and heating of the room.

Referring to FIG. 12 , in the third mode in which the controller 1000 cools the high voltage battery 110 with the chiller 910 , the cooling water of the battery line 100 bypasses the heating line 200 to the high voltage battery 110 . ) to control the first control valve 300 to flow to an upstream point, and control the third control valve 500 so that the cooling water of the battery line 100 flows to the chiller 910 through the integrated line 900 and , the opening and closing of the first expansion valve 650 or the second expansion valve 660 may be controlled so that the refrigerant in the refrigerant line 600 flows to the chiller 910 .

Referring to FIG. 13 , in the fourth mode in which the controller 1000 cools the high voltage battery 110 and the room at the same time, the cooling water of the battery line 100 bypasses the heating line 200 so that the high voltage battery 110 is cooled. Controls the first control valve 300 to flow to the upstream point, and controls the third control valve 500 so that the coolant of the battery line 100 that has passed through the high voltage battery 110 flows to the chiller 910, Opening and closing of the first expansion valve 650 or the second expansion valve 660 may be controlled so that the refrigerant in the refrigerant line 600 flows to the chiller 910 and the cooling core 610 for indoor air conditioning.

Referring to FIG. 14 , in the fifth mode in which the controller 1000 does not recover the waste heat of the electronic components 810 or the high voltage battery 110 , the third control valve 500 blocks the flow of the coolant in the integrated line 900 . ) can be controlled.

The third control valve 500 may control the cooling water of the integrated line 900 to flow to the electric component line 800 or to the battery line 100 , but it is controlled to block the flow of the cooling water from the integrated line 900 . You may.

The controller 1000 may control the cooling of the outside air of the battery line 100 or the cooling of the outside air of the electric component line 800 by controlling the driving of the first pump 130 or the second pump 830 in the fifth mode. .

Although shown and described with respect to specific embodiments of the present invention, it is within the art that the present invention can be variously improved and changed without departing from the spirit of the present invention provided by the following claims. It will be obvious to one of ordinary skill.

100: battery line 200: heating line
300: first control valve 400: bypass line
500: third control valve 600: refrigerant line
700: reservoir tank 800: electric part line
900: integrated line 1000: controller

Claims (21)

a battery line in which the cooling water flowing therein is heat-exchangeably connected with the high voltage battery, and having a first pump and a first radiator for flowing the cooling water therein;
a heating line branched from the battery line at a point downstream of the first pump, provided with a heating core for indoor air conditioning, branched at a point downstream of the heating core for indoor air conditioning, and joined to the battery line at a point upstream and downstream of the high voltage battery; and
It is located at the point where it branches from the battery line to the heating line to regulate the flow rate of the coolant flowing from the battery line to the heating line, or it is located at the point where the heating line joins the battery line and branches to the upstream and downstream points of the high voltage battery. Including; a first control valve for controlling the flow rate of the cooling water to be
The first control valve is a multi-port valve that simultaneously regulates the flow rate of the coolant flowing from the battery line to the heating line and the coolant flow branched to the upstream and downstream points of the high voltage battery,
The first control valve has an inlet connected to a point downstream of the first pump in the battery line and a point downstream of the heating core for indoor air conditioning in the heating line, and the outlet is connected to an upstream point and downstream point of the high voltage battery in the battery line and indoor air conditioning heating in the heating line. An integrated thermal management circuit for the vehicle, characterized in that it is a 5-Way valve connected to a point upstream of the core. delete delete The method according to claim 1,
The first control valve has an inlet connected to the downstream point of the first pump of the battery line, and an outlet connected to an upstream point of the heating core for indoor air conditioning of the heating line and an upstream point of the high voltage battery of the battery line, and a heating core for indoor air conditioning of the heating line. An integrated thermal management circuit for a vehicle, characterized in that the inlet connected to the downstream point is a 6-way valve branched to the outlet connected to the high voltage battery upstream point and downstream point of the battery line. The method according to claim 1,
A bypass line branched from the battery line at a point downstream of the high voltage battery and joined to the battery line at an upstream point of the first pump by bypassing the first radiator; further comprising,
An integrated thermal management circuit for a vehicle, characterized in that a heating line joined to the battery line at a downstream point of the high voltage battery is joined as a bypass line. 6. The method of claim 5,
An integrated thermal management circuit for a vehicle, characterized in that a second control valve for allowing or blocking the flow of the coolant flowing to the bypass line is provided at the branch or the bypass line branching from the battery line to the bypass line. The method according to claim 1,
An integrated thermal management circuit for a vehicle, characterized in that the heating line is provided with a water heating heater located at an upstream point of the heating core for indoor air conditioning to heat the internal cooling water. The method according to claim 1,
an integrated line branching from the battery line and rejoining the battery line by bypassing the first radiator;
a refrigerant line in which a refrigerant flows therein, a cooling core for indoor air conditioning is provided, and a water-cooled condenser connected to the heating line to exchange heat at an upstream point of the indoor air conditioning heating core;
a chiller connected to the refrigerant line to bypass the cooling core for indoor air conditioning, and the cooling water of the integrated line and the refrigerant of the refrigerant line are connected to each other so as to exchange heat; and
The integrated thermal management circuit of the vehicle further comprising a; a third control valve connected to the battery line and the integrated line at the same time to control the flow of coolant in the integrated line passing through the chiller. 9. The method of claim 8,
The cooling water flowing therein is connected so as to be heat-exchangeable with the electric parts, and an electric part line provided with a second radiator; further comprising,
The integrated line branches and merges in the electric component line and the battery line, respectively, and branches again into the electric component line and the battery line while flowing along the flow direction,
The third control valve is an integrated thermal management circuit of the vehicle, characterized in that it is connected simultaneously with the battery line, the electric component line and the integrated line. 10. The method of claim 9,
It further includes; a reservoir tank in which the coolant that has passed through the first radiator in the battery line and the coolant that has passed through the second radiator in the electric component line flow in a separated state from each other;
The integrated thermal management circuit of the vehicle, characterized in that the coolant of the battery line passing through the first radiator and the electric component line passing through the second radiator flows to the third control valve through the reservoir tank, respectively. 11. The method of claim 10,
A bypass line branched from the battery line at a point downstream of the high voltage battery and joined to the battery line at an upstream point of the first pump by bypassing the first radiator; further comprising,
The bypass line is connected to the reservoir tank, and the integrated thermal management circuit of the vehicle, characterized in that it is joined to the battery line. 10. The method of claim 9,
The integrated thermal management circuit of the vehicle, characterized in that it further includes a shut-off valve that blocks the reverse flow of the coolant at a position where it branches off from the electric component line or the battery line and joins the integrated line. 10. The method of claim 9,
The third control valve has an inlet connected to the integrated line, the first radiator side of the battery line, and the second radiator side of the electric component line, and the outlet is connected to the high voltage battery side of the battery line and the electric component side of the electric component line 5- The integrated thermal management circuit of the vehicle, characterized in that it is a way valve. 10. The method of claim 9,
The third control valve has an inlet connected to the integrated line branched from the upstream point, the first radiator side of the battery line, and the second radiator side of the electric component line, and the outlet port is connected to the high voltage battery side of the battery line and the electric component of the electric component line. The integrated thermal management circuit of the vehicle, characterized in that it is a 6-way valve connected to the side. 15. The method of claim 14,
and a non-return valve located in the integrated line connected to the high voltage battery side of the battery line through the third control valve among the integrated lines branched from the upstream point of the third control valve, and blocking the reverse flow of the coolant. The vehicle's integrated thermal management circuitry. 15. The method of claim 14,
The first control valve has an inlet connected to the downstream point of the first pump of the battery line, and an outlet connected to an upstream point of the heating core for indoor air conditioning of the heating line and an upstream point of the high voltage battery of the battery line, and a heating core for indoor air conditioning of the heating line. It is a 6-way valve with an inlet connected to the downstream point branching out to an outlet connected to the upstream point and downstream point of the high voltage battery in the battery line,
The outlet of the first control valve connected to the downstream point of the high voltage battery of the battery line is the first of the integrated line or the battery line connected to the high voltage battery side of the battery line through the third control valve among the integrated lines branched from the upstream point of the third control valve. Integrated thermal management circuitry in a vehicle, characterized in that it is connected to a point downstream of the radiator. 10. The method of claim 9,
a first expansion valve provided in the refrigerant line at an upstream point of the chiller;
a second expansion valve provided in the refrigerant line at an upstream point of the cooling core for indoor air conditioning; and
In the first mode of raising the temperature of the high-voltage battery using waste heat from electronic components, the first control valve is controlled so that the cooling water of the battery line flows to the heating line and the cooling water of the heating line flows into the battery line at an upstream point of the high-voltage battery, , a controller that controls the third control valve so that the cooling water of the electric component line flows to the chiller through the integrated line, and controls the opening and closing of the first expansion valve or the second expansion valve so that the refrigerant of the refrigerant line flows to the chiller; The integrated thermal management circuit of the vehicle, characterized in that it comprises. 10. The method of claim 9,
a first expansion valve provided in the refrigerant line at an upstream point of the chiller;
a second expansion valve provided in the refrigerant line at an upstream point of the cooling core for indoor air conditioning; and
In the second mode of heating a room using waste heat of electrical components, the first control valve is controlled so that the cooling water of the battery line flows to the heating line and the cooling water of the heating line flows to the battery line at a point downstream of the high voltage battery, A controller that controls the third control valve so that the coolant of the electrical component line flows to the chiller through the integrated line, and controls the opening and closing of the first expansion valve or the second expansion valve so that the coolant of the coolant line flows to the chiller; Integrated thermal management circuit of the vehicle, characterized in that. 10. The method of claim 9,
a first expansion valve provided in the refrigerant line at an upstream point of the chiller;
a second expansion valve provided in the refrigerant line at an upstream point of the cooling core for indoor air conditioning; and
In the third mode of cooling the high-voltage battery with the chiller, the first control valve is controlled so that the cooling water of the battery line bypasses the heating line and flows to the upstream point of the high-voltage battery, and the cooling water of the battery line goes to the chiller through the integrated line. and a controller controlling the third control valve to flow, and controlling the opening and closing of the first expansion valve or the second expansion valve so that the refrigerant in the refrigerant line flows to the chiller. 10. The method of claim 9,
a first expansion valve provided in the refrigerant line at an upstream point of the chiller; and
Further comprising; a second expansion valve provided in the refrigerant line at an upstream point of the cooling core for indoor air conditioning;
In the fourth mode of cooling the high voltage battery and the room at the same time, the first control valve is controlled so that the cooling water of the battery line bypasses the heating line and flows to the upstream point of the high voltage battery, and the cooling water of the battery line passing through the high voltage battery and a controller that controls the third control valve to flow to the chiller, and controls opening and closing of the first expansion valve or the second expansion valve so that the refrigerant in the refrigerant line flows to the chiller and the cooling core for indoor air conditioning. The vehicle's integrated thermal management circuitry. 10. The method of claim 9,
The integrated thermal management circuit of the vehicle further comprising a controller that controls the third control valve to block the flow of the coolant in the integrated line in the fifth mode in which waste heat of the electric components or the high voltage battery is not recovered.

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