KR102663175B1 - Valve apparatus and integrated thermal management system using same - Google Patents

Abstract

In the present invention, by integrating a plurality of coolant circuits into one valve and making it compact, it is advantageous in terms of manufacturing, and the compact size improves space utilization. In addition, through heat exchange between the coolant circulating in each coolant line and the refrigerant circulating in the refrigerant line according to various heat management modes, heat management efficiency is improved, including cooling of electrical components and batteries and indoor heating using waste heat from electrical components and batteries. As improvements are made, a valve device that can secure the driving range of electric mobility and a thermal management module using the same are introduced.

Description

Valve device and integrated thermal management system using the same {VALVE APPARATUS AND INTEGRATED THERMAL MANAGEMENT SYSTEM USING SAME}

The present invention relates to a valve device and an integrated thermal management system using the same, which integrates a plurality of coolant circuits into one valve to make it compact, and includes cooling of electrical components and batteries, and indoor heating using waste heat from electrical components and batteries. This relates to a valve device that ensures efficiency according to various thermal management modes and an integrated thermal management system using the same.

Recently, due to environmental issues related to internal combustion engine vehicles, the distribution of electric vehicles and other eco-friendly vehicles is increasing. However, in the case of existing internal combustion engine vehicles, the interior can be heated through the waste heat of the engine, so separate energy for heating is not required, but in the case of electric vehicles, etc., since there is no engine and therefore no heat source, heating is performed through separate energy. , which causes a problem of reduced fuel efficiency. It is true that this shortens the driving range of electric vehicles and causes inconveniences such as the need for frequent charging.

Meanwhile, due to the electrification of vehicles, new thermal management needs have been added not only to the interior of the vehicle but also to electrical components such as high-voltage batteries and motors. In other words, in the case of electric vehicles, the needs for air conditioning are different for interior space, batteries, and electrical components, and technology is needed to save energy as much as possible by responding independently and collaborating efficiently. Accordingly, the concept of integrated thermal management of a vehicle is being proposed to increase thermal efficiency by performing thermal management independently for each component while simultaneously integrating thermal management of the entire vehicle.

In order to perform integrated thermal management of such vehicles, it is necessary to integrate and modularize complex coolant lines and parts. A concept of modularization that modularizes multiple parts, is simple to manufacture, and is compact in terms of packaging is needed.

Additionally, in the case of electric vehicles, technology is required to ensure energy efficiency by utilizing waste heat from components such as electrical components and batteries that generate heat, thereby improving mileage and indoor cooling and heating performance.

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

10-2014-0147365 A (2014.12.30.)

The present invention was proposed to solve this problem, by integrating a plurality of coolant circuits into one valve to make it compact, and to provide various thermal management methods, including cooling of electrical components and batteries, and indoor heating using waste heat from electrical components and batteries. The purpose is to provide a valve device that ensures efficiency depending on the mode and an integrated thermal management system using the same.

A valve device according to the present invention for achieving the above object includes a housing having an internal space and formed by dividing a plurality of ports through which coolant flows into a first section and a second section; It is provided so that it can be rotated in the internal space of the housing, and a plurality of distribution holes matching the ports of the first section and the ports of the second section are formed among the plurality of ports, and the distribution holes matching the first section and the second section are formed. A stem having a communication hole communicating with one of the holes; and a seal interposed between the housing and the stem and having a through hole matching each distribution hole of the stem.

The housing has a first port connected to the reservoir on the electric component side in the first section, a second port connected to the reservoir on the battery side, and a third port connected to the battery chiller, and a fourth port and a third port connected to the radiator inlet and outlet in the second section. It is characterized by the formation of 5 ports.

The housing is characterized in that the sixth port to which the electrical component heat exchanger is connected is connected to branch from the fourth port connected to the radiator inlet.

The stem corresponds to the first section and has a body portion formed with a first distribution hole connecting each port of the first section and a second distribution hole connecting the port and the communication hole in the first section, and a second extending from the body portion. It is characterized by being composed of an extension part that corresponds to the section and extends a certain length along the circumference to close a specific port of the second section.

A plurality of first distribution holes connected to two of the first port, second port, and third port are formed in the body portion of the stem, so that each first distribution hole is communicated to form a distribution path inside, The second distribution hole connected to the remaining port among the first port, second port, and third port is formed to communicate with the communication hole.

The extension part of the stem is formed to match one of the fourth port and the fifth port, and the part excluding the extension part is characterized in that the communication hole communicates with the other port among the fourth port and the fifth port. .

The seal is configured to be divided into a first seal and a second seal, and the area of the through hole is larger than the area of the distribution hole.

Meanwhile, the integrated thermal management system using the valve device according to the present invention includes a first coolant line through which coolant circulates and includes a reservoir on the electric component side, a first water pump, an electrical component, and an electrical component heat exchanger; a second coolant line through which coolant circulates and includes a battery side reservoir, a second water pump, a battery, and a battery chiller; a third coolant line branched from the first coolant line and equipped with a radiator; A refrigerant line through which the refrigerant circulates, includes a compressor, outdoor condenser, expander, and evaporator, and is connected to the electric component heat exchanger and the battery chiller to exchange heat between the refrigerant and coolant; A refrigerant valve provided behind the outdoor condenser in the refrigerant line to selectively distribute refrigerant to the battery chiller and compressor; and a valve device that controls the flow of coolant by selectively changing the flow direction of the coolant flowing through the first coolant line, the second coolant line, and the third coolant line.

The refrigerant line is characterized by an additional indoor condenser between the compressor and the electrical component heat exchanger.

The refrigerant line's expander is characterized in that it is composed of a plurality of expanders, including a first expander located between the indoor condenser and the electric component heat exchanger, a second expander located between the outdoor condenser and the battery chiller, and a third expander located before the evaporator. .

The valve device switches the distribution direction of the coolant to the reservoir side on the electric parts side, the reservoir side on the battery side, the heat exchanger side of the electric parts, and the battery chiller, and allows the coolant that passed through the heat exchanger of the electric parts to be distributed to the radiator or bypassed. do.

It is characterized in that it further includes a controller that controls the valve, water pump, compressor, and expander according to the heat management mode.

The controller drives the first water pump when cooling the electrical components with outside air, and controls the valve device to circulate coolant through the first coolant line and the second coolant line, respectively, and to distribute coolant to the radiator. .

When cooling the battery, the controller drives the second water pump and controls the refrigerant valve while the compressor is running so that the refrigerant is distributed to the battery chiller. The first expander is opened and the second expander is expanded. It is characterized by control.

The controller is characterized in that it controls the third expander to expand during indoor cooling.

When the battery and electrical components are cooled by outdoor air, the controller drives the first and second water pumps and controls the valve device so that the coolant that has passed through the battery and battery chiller is distributed to the electrical components and the heat exchanger of the electrical components, and the radiator It is characterized in that coolant is distributed to.

The controller recovers waste heat from electrical components and drives the first water pump when heating the room. The valve device circulates coolant through the first and second coolant lines, respectively, and allows the coolant to bypass the radiator, and the compressor operates. In the driven state, the first expander is expanded, and the second expander and the third expander are controlled to close.

The controller is characterized by stopping the operation of the first water pump and operating the second water pump when cooling the battery and heating the room.

When heating the room using waste heat from electrical components and batteries, the controller drives the first and second water pumps and controls the valve device so that the coolant that has passed through the battery and battery chiller is distributed to the electrical components and the heat exchanger of the electrical components. In a state in which the compressor is driven, the first expander is expanded, and the refrigerant valve is controlled to allow the refrigerant that has passed through the condenser to pass through the battery chiller and be distributed to the compressor.

The valve device with the above-described structure and the thermal management module using the same are advantageous in terms of manufacturing by integrating a plurality of coolant circuits into one valve and making it compact, and the compact size has the effect of improving space utilization.

In addition, through heat exchange between the coolant circulating in each coolant line and the refrigerant circulating in the refrigerant line according to various heat management modes, heat management efficiency is improved, including cooling of electrical components and batteries and indoor heating using waste heat from electrical components and batteries. As improvements are made, the driving range of electric mobility can be secured.

1 is a diagram showing a valve device according to the present invention.
Figure 2 is an assembly diagram of the valve device shown in Figure 1.
Figure 3 is a top view of the valve device shown in Figure 1;
FIG. 4 is a cross-sectional view of a first section of the valve device shown in FIG. 1.
FIG. 5 is a cross-sectional view of a second section of the valve device shown in FIG. 1.
Figure 6 is a configuration diagram of an integrated thermal management system according to the present invention.
Figure 7 is a circuit diagram of an integrated thermal management system according to an embodiment of the present invention.
Figure 8 is a diagram showing the thermal management mode of the integrated thermal management system according to the present invention.
FIG. 9 is a diagram showing a valve device according to the thermal management mode shown in FIG. 8.
Figure 10 is a diagram showing another thermal management mode of the integrated thermal management system according to the present invention.
FIG. 11 is a diagram showing a valve device according to the thermal management mode shown in FIG. 10.
Figure 12 is a diagram showing another thermal management mode of the integrated thermal management system according to the present invention.
FIG. 13 is a diagram showing a valve device according to the thermal management mode shown in FIG. 12.
Figure 14 is a diagram showing another thermal management mode of the integrated thermal management system according to the present invention.
FIG. 15 is a diagram showing a valve device according to the thermal management mode shown in FIG. 14.

Hereinafter, an integrated thermal management system for mobility according to a preferred embodiment of the present invention will be described with reference to the attached drawings.

FIG. 1 is a diagram showing a valve device according to the present invention, FIG. 2 is an assembly diagram of the valve device shown in FIG. 1, FIG. 3 is a top view of the valve device shown in FIG. 1, and FIG. 4 is a view of the valve device shown in FIG. 1. It is a cross-sectional view of the first section of the valve device shown in FIG. 5, and FIG. 5 is a cross-sectional view of the second section of the valve device shown in FIG.

Meanwhile, Figure 6 is a configuration diagram of an integrated thermal management system according to the present invention, Figure 7 is a circuit diagram of an integrated thermal management system according to an embodiment of the present invention, and Figure 8 shows a thermal management mode of the integrated thermal management system according to the present invention. It is a diagram, FIG. 9 is a diagram showing a valve device according to the thermal management mode shown in FIG. 8, FIG. 10 is a diagram showing another thermal management mode of the integrated thermal management system according to the present invention, and FIG. 11 is a diagram showing the thermal management shown in FIG. 10. It is a diagram showing a valve device according to mode, and FIG. 12 is a diagram showing another thermal management mode of the integrated thermal management system according to the present invention, and FIG. 13 is a diagram showing a valve device according to the thermal management mode shown in FIG. 12, and FIG. 14 is a diagram showing another thermal management mode of the integrated thermal management system according to the present invention, and FIG. 15 is a diagram showing a valve device according to the thermal management mode shown in FIG. 14.

As shown in FIGS. 1 to 5, the valve device according to the present invention has an internal space and a housing 100 formed by dividing a plurality of ports through which coolant flows into a first section (S1) and a second section (S2). ); It is provided so that it can be rotated in the internal space of the housing 100, and a plurality of distribution holes 210 are formed that match the ports of the first section (S1) and the ports of the second section (S2) among the plurality of ports. , a stem 200 in which a communication hole 220 is formed to communicate with any one of the distribution holes 210 matching the first section (S1) and the second section (S2); and a seal 300 interposed between the housing 100 and the stem 200 and having a near through hole 310 matching each distribution hole 210 of the stem 200.

That is, the valve device 60 of the present invention is composed of a housing 100, a stem 200, and a seal 300, and a stem 200 and a seal 300 are provided in the inner space of the housing 100 to form a stem ( The distribution direction of coolant through each port is changed depending on the rotation position of 200). Here, in the case of the stem 200, when provided in the housing 100, the rotational position can be adjusted by control of a motor (not shown).

Here, the housing 100 is formed with a plurality of ports through which coolant flows, and each port is divided into a first section (S1) and a second section (S2). The first section (S1) and the second section (S2) of the housing 100 are arranged to be spaced apart in the longitudinal direction, a plurality of ports are formed along the circumference of the housing 100 in the first section (S1), and the remaining Since the ports are formed along the circumference of the housing 100 in the second section S2, the flow direction of coolant through each port can be changed depending on the rotational position of the stem 200.

The stem 200 is formed with a plurality of distribution holes 210 that are respectively matched to the ports of the first section (S1) and the ports of the second section (S2). In particular, the stem 200 has a communication hole 220 that communicates the distribution hole 210 matching the port of the first section (S1) with the distribution hole 210 matching the port of the second section (S2). is formed Through this, the present invention forms a coolant flow in which coolant is distributed to the port corresponding to the first section (S1) and the second section (S2) of the housing 100 with one stem 200, The overall package can be reduced by modularizing the thermal management components around one valve device 60.

The seal 300 is interposed between the housing 100 and the stem 200 to stabilize the rotational behavior of the stem 200, and coolant flows through the distribution hole 210 and port specified according to the rotational position of the stem 200. flow can be secured. This seal 300 is configured to be divided into a first seal 300a and a second seal 300b, so that convenience in assembling the housing 100 and the stem 200 can be secured. In addition, the first seal 300a and the second seal 300b can be formed to be symmetrical, and the area of the through hole 310 can be formed larger than the area of the distribution hole 210, thereby ensuring design freedom. there is. In addition, the seal 300 is formed so that each through hole 310 is arranged at equal intervals, so that the same repulsive force is maintained over the entire area, and sealing performance and durability performance can be improved.

To describe the valve device 60 in detail, the housing 100 includes a first port 110 connected to the reservoir 11 on the electric component side in the first section S1, and a first port 110 connected to the reservoir 21 on the battery side. 2 ports 120 and a third port 130 connected to the battery chiller 24 are formed, and a fourth port 140 and a fifth port 150 are respectively connected to the inlet and outlet of the radiator 31 in the second section S2. ) is formed.

In addition, the housing 100 is connected to a sixth port 160 connected to the electric component side reservoir 14 so as to branch from the fourth port 140 connected to the inlet of the radiator 31.

In this way, the valve device 60 according to the present invention can be configured as a 6-way valve as six ports are formed in the housing 100, coolant is distributed through each port, and the rotational position of the stem 200 is adjusted. Accordingly, the distribution direction of coolant through each port is changed. Through this, the present invention can change the flow direction of coolant for a plurality of circuits through which coolant flows through one valve device 60. In particular, in the case of the sixth port 160, it is configured to branch from the fourth port 140, so that the sixth port 160, where the reservoir 14 on the electric component side is connected, and the fourth port, where the inlet of the radiator 31 is connected, (140) Design freedom is secured, which is advantageous for the overall module package. This is to ensure the ease of modularization of each coolant component while enabling the implementation of a thermal management mode according to coolant distribution between the reservoir 14 on the electric component side and the radiator 31 in the thermal management system to be described below.

Meanwhile, the stem 200 corresponds to the first section (S1) and has a first distribution hole 211 connecting each port of the first section (S1) and a communication hole 220 with the port of the first section (S1). A body portion (200a) in which a second distribution hole (212) connecting the body portion (200a) is formed, extends from the body portion (200a) to correspond to the second section (S2), and extends a certain length along the circumference of the second section (S2). It consists of an extension part 200b that closes a specific port.

Here, the body portion 200a of the stem 200 has a plurality of first distribution holes 211 connected to two of the first port 110, the second port 120, and the third port 130. As it is formed, each first distribution hole 211 is communicated to form a distribution path inside, and is connected to the remaining port among the first port 110, the second port 120, and the third port 130. The second distribution hole 212 is formed to communicate with the communication hole 220.

In addition, the extension portion 200b of the stem 200 is formed to match either the fourth port 140 or the fifth port 150, and the portion excluding the extension portion 200b is the fourth port ( 140), the communication hole 220 is configured to communicate with another port of the fifth port 150.

That is, the stem 200 is composed of a body portion 200a and an extension portion 200b, and the body portion 200a has a first distribution hole 211 and a second distribution hole 211 matching each port of the first section S1. A distribution hole 212 is formed, and the extension portion 200b is formed to open and close each port of the second section S2.

Here, the stem 200 of the present invention is configured to distribute coolant to two ports in the first section (S1) among the six ports, and to distribute coolant to one port in the second section (S2). Accordingly, the first distribution hole 211 is formed in the body portion 200a of the stem 200 to be connected to two of the first port 110, the second port 120, and the third port 130. do. For example, as can be seen in FIG. 4, a total of six first distribution holes 211 may be formed from the center of the body portion 200a, and each first distribution hole 211 may be formed every time the stem 200 is rotated by a certain angle. The hole 211 is connected to two of the first port 110, the second port 120, and the third port 130, thereby forming a flow of coolant in the first section S1. In addition, a total of two second distribution holes 212 may be formed from the center of the body portion 200a, and each second distribution hole 212 may be connected to the first port whenever the stem 200 is rotated by a certain angle. By being connected to any one of the ports (110), the second port (120), and the third port (130), the coolant flows to the first section (S1) and the second section (S2) through the communication hole (220). flow can be formed.

The extension portion 200b extending from the body portion 200a of the stem 200 is formed to match any one of the fourth port 140 and the fifth port 150 in the second section S2, The portion excluding the extension portion 200b is configured to communicate with the other one of the fourth port 140 and the fifth port 150 through the communication hole 220. This extension portion 200b may be formed to extend a certain length along the circumference of the extension portion 200b. For example, as can be seen in Figure 5, the extension portion 200b may be formed in a semicircular shape, and whenever the stem 200 is rotated by a certain angle, one of the fourth port 140 and the fifth port 150 Matched to the port, one of the fourth port 140 and the fifth port 150 may be closed and the other may be configured to be open. Through this, the extension portion 200b opens or closes either the fourth port 140 or the fifth port 150 depending on the rotational position of the stem 200, thereby forming the open second section S2. The port and the communication hole 220 are connected to form a flow in which coolant is distributed in the first section (S1) and the second section (S2).

Through this, the present invention can be compactized by integrating a plurality of coolant circuits into one valve device 60.

Meanwhile, the thermal management system using the valve device 60 according to the present invention described above is as follows.

As shown in FIGS. 6 and 7, the thermal management system according to the present invention circulates coolant, and includes a reservoir 11 on the electrical component side, a first water pump 12, an electrical component 13, and a reservoir 14 on the electrical component side. ) a first coolant line (10) including; A second coolant line 20 through which coolant is circulated and includes a battery side reservoir 21, a second water pump 22, a battery 23, and a battery chiller 24; a third coolant line (30) branched from the first coolant line (10) and provided with a radiator (31); The refrigerant circulates and includes a compressor (41), an outdoor condenser (42), an expander (43), and an evaporator (44), and is connected to the reservoir (14) on the electrical parts side and the battery chiller (24) to exchange heat between the refrigerant and the coolant. Refrigerant line (40); A refrigerant valve 50 provided behind the outdoor condenser 42 in the refrigerant line 40 to selectively distribute the refrigerant to the battery chiller 24 and the compressor 41; and a valve device 60 that controls the flow of coolant by selectively switching the flow direction of the coolant flowing through the first coolant line 10, the second coolant line 20, and the third coolant line 30. do.

In the present invention, the radiator 31 and the outdoor condenser 42 are integrated, so that the radiator 31 and the outdoor condenser 42 can exchange heat with the outside air.

In addition, the refrigerant line 40 further includes an indoor condenser 45 between the compressor 41 and the reservoir 14 on the electrical component side, so that the temperature of the air conditioning air provided to the room can be adjusted through the indoor condenser 45. there is. This indoor condenser 45 can be used to provide heating air indoors, and a PTC heater (H) can be further configured to supplement indoor heating heat.

In addition, the expander 43 of the refrigerant line 40 is a first expander 43a located between the indoor condenser 45 and the reservoir 14 on the electric component side, and between the outdoor condenser 42 and the battery chiller 24. It may be comprised of a plurality of devices, including a second expander 43b positioned before the evaporator 44 and a third expander 43c positioned before the evaporator 44. Here, the first expander (42a) and the second expander (43b) are configured to perform heat exchange between the refrigerant and the coolant in the electric component side reservoir 11 and the battery chiller 24, respectively, according to the heat management mode, and the third expander ( In case 43c), it may be configured to provide cooling air to the room through the evaporator 44.

Each of these valves, water pump, compressor 41, expander 32, and PTC heater (H) is controlled according to the heat management mode through the controller (M) to determine the operation. Here, the thermal management mode may include a cooling/temperature raising mode of the electrical component 13, a cooling/temperature raising mode of the battery 23, and an indoor cooling/heating mode. In detail, in cooling/raising the electrical components 13 and the battery 23 or cooling/heating the interior, respectively, a mode in which cooling/heating is performed using external air, and a mode in which cooling/heating is performed using a refrigerant. It may include a mode that performs cooling/heating using outdoor air and refrigerant.

Meanwhile, in the first coolant line 10, when the first water pump 12 is operating, the coolant circulates through the electrical component side reservoir 11, the electrical component side 13, and the electrical component side reservoir 11 to exchange heat. In the second coolant line 20, when the second water pump 22 operates, coolant circulates through the battery side reservoir 21, the battery 23, and the battery chiller 24 to exchange heat. Here, a water heater 25 is further provided in the second coolant line 20, so that the temperature of the coolant circulating in the second coolant line 20 can be adjusted. Additionally, coolant may be selectively distributed through the third coolant line 30 to exchange heat with the radiator 31.

The first coolant line 10, the second coolant line 20, and the third coolant line 30 are connected via the valve device 60 according to the present invention to control the coolant flow of the valve device 60. Accordingly, the coolant may be circulated individually in the first coolant line 10 and the second coolant line 20, or may be circulated integrated into the first coolant line 10 and the second coolant line 20. Additionally, coolant may be selectively distributed to the third coolant line 30.

Accordingly, the valve device 60 of the present invention changes the distribution direction of the coolant to the electric component side reservoir 11 side, the battery side reservoir 21 side, the electric component side reservoir 14 side, and the battery chiller 24 side. And, the coolant that has passed through the reservoir 14 on the electrical component side is distributed to the radiator 31 or bypassed.

Through this, in the past, the overall package was increased as a plurality of valves were configured to distribute coolant between coolant parts, but in the present invention, the distribution direction of coolant for each coolant part is changed with a single valve device 60. The entire package is reduced. In particular, the present invention can secure a package and design freedom by configuring an integrated module with one valve device 60.

Meanwhile, in the refrigerant line 40, when the compressor 41 is driven, the refrigerant passes through the indoor condenser 45, the reservoir 11 on the electrical parts side, the outdoor condenser 42, the battery chiller 24, and each expander 32. While doing so, heat is exchanged with the coolant circulating in the first coolant line 10 through the electric component heat exchanger 14 or with the coolant circulating in the second coolant line 20 through the battery chiller 24.

Through this, the integrated thermal management system according to the present invention provides the distribution direction of the coolant circulated in the first coolant line 10, the second coolant line 20, and the third coolant line 30 by the operation of the valve device 60. This is controlled, and heat exchange between the refrigerant circulating in the refrigerant line 40 and the coolant is controlled by the operation of the refrigerant valve 50, so that an optimal heat management mode can be performed for each situation.

Meanwhile, in the present invention, the electric component side reservoir 11 is provided in front of the first water pump 12, and the battery side reservoir 21 is provided in front of the second water pump 22, so that the first coolant line ( 10) and the second coolant line 20 are easy to manage. In particular, when the electric component side reservoir 11 and the battery side reservoir 21 are disposed in front of the first water pump 12 and the second water pump 22, respectively, the As the installation locations can be separated and configured, it is easy to configure the entire module package. In addition, as each reservoir is placed at the front of each water pump, air removal performance through each reservoir is improved, and it is easy to configure the reservoir and valve as an integrated module.

Through each configuration according to the present invention described above, embodiments according to the thermal management mode can be performed as follows. This is explained in detail as follows.

As shown in FIG. 8, when the electric component 13 is cooled by outside air, the controller M drives the first water pump 12 and controls the valve device 60 to connect the first coolant line 10. Coolant is circulated through the and second coolant lines 20, respectively, and coolant is distributed to the radiator 31.

That is, when cooling the electrical components 13 with external air, the coolant passing while cooling the electrical components 13 by the operation of the first water pump 12 in the first coolant line 10 passes through the radiator 31. It is cooled by exchanging heat with the outside air, and the coolant cooled through the radiator 31 is circulated back to the electrical component 13, thereby cooling the electrical component 13 through heat exchange between the coolant and the outside air. This means that as the first coolant line 10 and the second coolant line 20 are separated by the valve device 60, the coolant circulates only in the first coolant line 10, and the coolant flows toward the radiator 31. You can. At this time, in the case of the radiator 31, the fan can be driven to improve the cooling efficiency of the coolant.

Meanwhile, when cooling the battery 23, the controller (M) drives the second water pump 22 and controls the refrigerant valve 50 while the compressor 41 is driven so that the refrigerant flows into the battery chiller 24. The first expander (42a) can be controlled to open and the second expander (43b) can be controlled to expand.

That is, when cooling the electrical components 13 with external air and simultaneously cooling the battery 23 with a refrigerant, the coolant passing while cooling the electrical components 13 by the operation of the first water pump 12 flows into the radiator 31. As it passes through, it is cooled by heat exchange with the outside air, and the coolant cooled through the radiator 31 is circulated back to the electrical component 13. This means that as the first coolant line 10 and the second coolant line 20 are separated by the valve device 60, the coolant circulates only in the first coolant line 10, and the coolant flows toward the radiator 31. .

At the same time, as the compressor 41 is driven, the compressed refrigerant is condensed through the indoor condenser 45, the reservoir 11 on the electric parts side, and the outdoor condenser 42, and the second expander 43b is expanded, Cooling of the coolant is performed by heat exchange between the refrigerant and the coolant through the battery chiller 24. Due to this, the coolant cooled from the second coolant line 20 through the battery chiller 24 can be distributed to the battery 23 to cool the battery 23. Here, the second water pump 22 is driven to circulate coolant in the second coolant line 20, and the refrigerant valve 50 directs the refrigerant flow from the outdoor condenser 42 to the second expander 43b and the battery. The flow is switched to the chiller 24 side, and the first expander 42a can be switched to a fully open state.

In this way, the present invention can cool the electrical component 13 through heat exchange between outside air and coolant, and in the case of the battery 23, it can be cooled through heat exchange between coolant and refrigerant.

Accordingly, the valve device 60 is an embodiment, and as shown in FIG. 9, the third port 130 of the ports corresponding to the first section S1 of the housing 100 in the stem 200 Coolant is distributed to the second port 120, and coolant flowing in through the fourth port 140 among the ports corresponding to the second section (S2) of the housing 100 flows into the first section through the communication hole 220. A flow distributing to the first port 110 of (S1) may be formed. Through this, it is possible to implement a thermal management mode in which the above-described electrical components are cooled by outside air or the battery is cooled by a battery chiller.

Meanwhile, the controller M can control the third expander 43c to expand during indoor cooling. That is, when the third expander (43c) is closed, the refrigerant is blocked from flowing toward the evaporator 44, but when the third expander (43c) is open, the refrigerant flows toward the evaporator 44, thereby The air conditioned air can be cooled. That is, in a mode in which the electric components 13 are cooled by outdoor air and the battery 23 is cooled by the refrigerant, the room can be cooled by allowing some of the refrigerant that passed through the outdoor condenser 42 to be distributed to the evaporator 44. there is.

Meanwhile, when the battery 23 and the electrical components 13 are cooled by outside air, the controller M drives the first water pump 12 and the second water pump 22 and controls the valve device 60. The coolant that has passed through the battery 23 and the battery chiller 24 is distributed to the electrical component 13 and the reservoir 14 on the electrical component side, and the coolant is distributed to the radiator 31.

As shown in FIG. 10, when both the battery 23 and the electrical components 13 are cooled by outside air, the first coolant line 10 and the second coolant line 20 are connected to one another by the valve device 60. As the coolant distribution path is formed, the coolant is shared and distributed through the first coolant line 10 and the second coolant line 20. Additionally, coolant flows toward the radiator 31 by the valve device 60. Due to this, when the first water pump 12 and the second water pump 22 are operating, the coolant that first cooled the battery 23 secondarily cools the electrical components 13, and the battery 23 and the electrical components The coolant that cooled (13) is cooled through the radiator (31) and circulated to cool the battery (23) and the electrical components (13) again. At this time, the refrigerant is prevented from circulating in the refrigerant line 40 to prevent heat exchange between the refrigerant and the coolant through the reservoir 11 on the electrical component side and the battery chiller 24. Through this, the present invention can cool the coolant only with outside air through the radiator 31, thereby cooling the battery 23 and the electrical components 13 with outside air.

Accordingly, the valve device 60 is an embodiment, and as shown in FIG. 11, the third port 130 of the ports corresponding to the first section S1 of the housing 100 in the stem 200 Coolant is distributed through the first port 110, and coolant flowing in through the fourth port 140 of the ports corresponding to the second section (S2) of the housing 100 flows into the first section through the communication hole 220. A flow distributing to the second port 120 of (S1) may be formed. Through this, it is possible to implement a thermal management mode in which the above-described battery and electrical components are cooled by outdoor air.

Meanwhile, as shown in FIG. 12, the controller M recovers waste heat from the electrical components 13, drives the first water pump 12 when heating the room, and operates the valve device 60 in the first coolant line ( 10) and the second coolant line 20, respectively, coolant is circulated, the coolant bypasses the radiator 31, and in the case of the first expander 43a when the compressor 41 is driven, it is expanded, and the first expander 43a is expanded. The second expander (43b) and the third expander (43c) are controlled to be closed. Here, in the case of the refrigerant valve 50, the refrigerant that has passed through the indoor condenser 45 can be controlled to distribute to the compressor 41.

That is, when heating the room, the high-temperature, high-pressure refrigerant flowing out of the compressor 41 flows into the indoor condenser 45 and is condensed in the indoor condenser 45 to dissipate heat, and outdoor air or internal air passes through the indoor condenser 45. As a result, the temperature is raised by exchanging heat with the radiated heat and then supplied to the room to heat the room. At this time, the PTC heater (H) may be operated together to supplement indoor heating.

In addition, as the refrigerant line 40 expands in the case of the first expander (43a), opens in the case of the second expander (43b), and closes in the case of the third expander (43c), it passes through the indoor condenser (45). After a refrigerant is expanded in the first expander (43a), it exchanges heat with the coolant in the first coolant line (10) through the electrical component heat exchanger (14), thereby cooling the coolant. As a result, the electrical components 13 can be cooled by the coolant circulated in the first coolant line 10 by driving the first water pump 12, and the electrical components 13 are stored in the reservoir 11 on the electrical component side. ), evaporation becomes smoother as the coolant and refrigerant, which have been heated up, exchange heat.

In addition, since the coolant in the first coolant line 10 does not circulate to the radiator 31, heat exchange efficiency between the refrigerant and the coolant is secured in the reservoir 11 on the electric parts side, and the third expander 43c is closed and operated to Cooling air is not formed through (44).

Accordingly, the valve device 60 is an embodiment, and as shown in FIG. 13, the third port 130 of the ports corresponding to the first section S1 of the housing 100 in the stem 200 Cooling water is distributed through the second port 120, and coolant flowing in through the fifth port 150 among the ports corresponding to the second section S2 of the housing 100 flows into the first section through the communication hole 220. A flow distributing to the first port 110 of (S1) may be formed. Through this, it is possible to implement a thermal management mode that recovers waste heat from electrical components and heats the room.

Meanwhile, when cooling the battery 23 and heating the room, the controller M stops driving the first water pump 12 and drives the second water pump 22.

That is, when heating the room, the high-temperature, high-pressure refrigerant discharged from the compressor 41 flows into the indoor condenser 45 and is condensed in the indoor condenser 45 to radiate heat, and the outside air or internal air flows through the indoor condenser 45. As it passes, it exchanges heat with the radiated heat, raises the temperature, and is then supplied indoors to heat the room. At this time, the PTC heater (H) may be operated together to supplement indoor heating.

In addition, as the refrigerant line 40 expands in the case of the first expander (43a) and closes in the case of the second expander (43b) and the third expander (43c), the refrigerant passing through the indoor condenser 45 flows into the first expander. Although it is expanded at (43a), the operation of the first water pump 12 is stopped, so heat exchange between the refrigerant and the coolant does not occur in the reservoir 11 on the electric component side, and heat exchange between the refrigerant and the coolant is performed in the battery chiller 24. Allow the coolant in the second coolant line 20 to cool. Here, in the case of the refrigerant valve 50, the refrigerant that has passed through the indoor condenser 45 can be controlled to flow to the battery chiller 24, the first expander 43a is opened, and the second expander 43b is opened. By performing an expansion operation, heat exchange can be performed between the refrigerant and the coolant in the battery chiller 24. Through this, cooling of the battery 23 can be performed simultaneously while heating the room.

Meanwhile, as shown in FIG. 14, the controller (M) drives the first water pump 12 and the second water pump 22 when heating the room using the waste heat of the electrical components 13 and the battery 23. and controls the valve device 60 so that the coolant that has passed through the battery 23 and the battery chiller 24 is distributed to the electric parts 13 and the reservoir 14 on the electric parts side, and the compressor 41 is driven. In this state, the first expander (43a) is expanded and the refrigerant valve (50) is controlled to allow the refrigerant that has passed through the condenser to pass through the battery chiller (24) and be distributed to the compressor (41).

That is, when heating the room using the waste heat of the electrical components 13 and the battery 23, the first coolant line 10 and the second coolant line 20 form one coolant distribution path by the valve device 60. Accordingly, the coolant is shared and distributed through the first coolant line 10 and the second coolant line 20. In addition, by preventing the coolant from flowing to the radiator 31, the coolant that primarily cooled the battery 23 through the operation of the first water pump 12 and the second water pump 22 cools the electrical components 13. Secondary cooling occurs.

In addition, the high-temperature, high-pressure refrigerant flowing out of the compressor 41 flows into the indoor condenser 45 and is condensed in the indoor condenser 45 to radiate heat, and as outdoor or internal air passes through the indoor condenser 45, the radiated heat and The temperature is raised through heat exchange and then supplied indoors to heat the room. At this time, the PTC heater (H) may be operated together to supplement indoor heating.

In particular, as the first expander (43a) expands in the refrigerant line (40), the refrigerant compressed in the compressor (41) passes through the indoor condenser (45), expands in the first expander (43a), and then enters the electrical component heat exchanger. Heat is exchanged with the coolant of the first coolant line (10) through (14). As a result, the coolant that circulates in the first coolant line 10 and the second coolant line 20 and exchanges heat with the electrical components 13 and the battery 23 exchanges heat with the refrigerant through the reservoir 11 on the electrical component side, thereby It absorbs heat generated from the electrical components 13 and the battery 23. In this way, the refrigerant that absorbs the heat from the electrical components 13 and the battery 23 passes through the battery chiller 24 and is distributed to the compressor 41, thereby reducing the differential pressure of the refrigerant system and improving heating efficiency.

Accordingly, the valve device 60 is an embodiment, and as shown in FIG. 15, the third port 130 of the ports corresponding to the first section S1 of the housing 100 in the stem 200 Cooling water is distributed through the first port 110, and coolant flowing in through the fifth port 150 among the ports corresponding to the second section S2 of the housing 100 flows into the first section through the communication hole 220. A flow distributing to the second port 120 of (S1) may be formed. Through this, it is possible to implement a thermal management mode that heats the room using the waste heat of the electrical components and batteries described above.

The valve device 60 with the above-described structure and the thermal management module using the same are advantageous in terms of manufacturing by integrating a plurality of coolant circuits into one valve and making it compact, and the compact size improves space utilization. have

In addition, through heat exchange between the coolant circulating in each coolant line and the refrigerant circulating in the refrigerant line 40 according to various heat management modes, the cooling of the electrical components 13 and the battery 23, the electrical components 13 and the battery ( 23) As heat management efficiency improves, including indoor heating using waste heat, the driving range of electric mobility can be secured.

Although the present invention has been shown and described in relation to specific embodiments, it is known in the art that the present invention can be modified and changed in various ways without departing from the technical spirit of the invention as provided by the following claims. This will be self-evident to those with ordinary knowledge.

100: Housing 110: First port
120: 2nd port 130: 3rd port
140: Port 4 150: Port 5
160: Port 6 200: Stem
200a: body portion 200b: extension portion
210: Distribution Hall 211: First Distribution Hall
212: Second distribution hall 220: Communication hall
300: Seal 310: Through hole
S1: 1st section S2: 2nd section
10: First coolant line 11: Reservoir on electrical parts side
12: First water pump 13: Electrical parts
14: Electrical component heat exchanger 20: Second coolant line
21: Battery side reservoir 22: Second water pump
23:Battery 24:Battery chiller
25: Water heater 30: Third coolant line
31: Radiator 40: Refrigerant line
41: Compressor 42: Outdoor condenser
43: expander 43a: first expander
43b: second expander 43c: third expander
44: Evaporator 45: Indoor condenser
50: Refrigerant valve 60: Valve device
M: Controller H: PTC heater

Claims (19)

A housing having an internal space and a plurality of ports through which coolant is distributed are divided into a first section and a second section and spaced apart for each section;
It is provided so that it can be rotated in the internal space of the housing, and a plurality of distribution holes matching the ports of the first section and the ports of the second section are formed among the plurality of ports, and the distribution holes matching the first section and the second section are formed. A stem having a communication hole communicating with one of the holes; and
A valve device comprising a seal interposed between the housing and the stem and having a through hole matching each distribution hole of the stem. In claim 1,
The housing has a first port connected to the reservoir on the electric component side in the first section, a second port connected to the reservoir on the battery side, and a third port connected to the battery chiller, and a fourth port and a third port connected to the radiator inlet and outlet in the second section. A valve device characterized in that 5 ports are formed. In claim 2,
A valve device characterized in that the sixth port to which the electrical component heat exchanger is connected is connected to the housing so that it branches off from the fourth port connected to the radiator inlet. In claim 3,
The stem corresponds to the first section and has a body portion formed with a first distribution hole connecting each port of the first section and a second distribution hole connecting the port and the communication hole in the first section, and a second extending from the body portion. A valve device characterized in that it consists of an extension part that corresponds to the section and extends a certain length along the circumference to close a specific port in the second section. In claim 4,
A plurality of first distribution holes connected to two of the first port, second port, and third port are formed in the body portion of the stem, so that each first distribution hole is communicated to form a distribution path inside, A valve device characterized in that the second distribution hole connected to the remaining port among the first port, second port, and third port is formed to communicate with the communication hole. In claim 4,
The extension part of the stem is formed to match one of the fourth port and the fifth port, and the part excluding the extension part is formed so that the communication hole communicates with the other port of the fourth port and the fifth port. valve device. In claim 1,
A valve device characterized in that the seal is configured to be divided into a first seal and a second seal, and the area of the through hole is formed to be larger than the area of the distribution hole. In the integrated thermal management system using the valve device of any one of claims 1 to 6,
A first coolant line through which coolant circulates and includes an electrical component side reservoir, a first water pump, an electrical component, and an electrical component heat exchanger;
a second coolant line through which coolant circulates and includes a battery side reservoir, a second water pump, a battery, and a battery chiller;
a third coolant line branched from the first coolant line and equipped with a radiator;
A refrigerant line through which the refrigerant circulates, includes a compressor, outdoor condenser, expander, and evaporator, and is connected to the electric component heat exchanger and the battery chiller to exchange heat between the refrigerant and coolant;
A refrigerant valve provided behind the outdoor condenser in the refrigerant line to selectively distribute refrigerant to the battery chiller and compressor; and
A thermal management system comprising a valve device that controls the flow of coolant by selectively changing the flow direction of the coolant distributed in the first coolant line, the second coolant line, and the third coolant line. In claim 8,
A heat management system characterized in that the refrigerant line further includes an indoor condenser between the compressor and the heat exchanger for electrical components. In claim 9,
The refrigerant line expander is characterized in that it is composed of a plurality of expanders, including a first expander located between the indoor condenser and the electric component heat exchanger, a second expander located between the outdoor condenser and the battery chiller, and a third expander located before the evaporator. Thermal management system. In claim 10,
The valve device switches the distribution direction of the coolant to the reservoir side on the electric parts side, the reservoir side on the battery side, the heat exchanger side of the electric parts, and the battery chiller, and allows the coolant that passed through the heat exchanger of the electric parts to be distributed to the radiator or bypassed. thermal management system. In claim 10,
A thermal management system further comprising a controller that controls the valve, water pump, compressor, and expander according to the thermal management mode. In claim 12,
The controller drives the first water pump when cooling the electrical components with external air, and controls the valve device to circulate coolant in the first coolant line and the second coolant line, respectively, and to distribute the coolant to the radiator. Thermal management system. In claim 13,
When cooling the battery, the controller drives the second water pump and controls the refrigerant valve while the compressor is running so that the refrigerant is distributed to the battery chiller. The first expander is opened and the second expander is expanded. A thermal management system characterized by control. In claim 12,
A thermal management system wherein the controller controls the third expander to expand when cooling the room. In claim 12,
When the battery and electrical components are cooled by outdoor air, the controller drives the first and second water pumps and controls the valve device so that the coolant that has passed through the battery and battery chiller is distributed to the electrical components and the heat exchanger of the electrical components, and the radiator A thermal management system characterized in that coolant is distributed to. In claim 12,
The controller recovers waste heat from electrical components, drives the first water pump during indoor heating, and uses a valve device to circulate coolant through the first and second coolant lines, respectively, and allow the coolant to bypass the radiator.
A thermal management system that controls the first expander to expand while the compressor is running, and the second and third expanders to close. In claim 17,
A heat management system characterized in that the controller stops the operation of the first water pump and operates the second water pump when cooling the battery and heating the room. In claim 12,
When heating the room using waste heat from electrical components and batteries, the controller drives the first and second water pumps and controls the valve device so that the coolant that has passed through the battery and battery chiller is distributed to the electrical components and the heat exchanger of the electrical components. And
A thermal management system in which the first expander expands while the compressor is running, and the refrigerant valve is controlled to allow the refrigerant that has passed through the condenser to pass through the battery chiller and be distributed to the compressor.

Images