KR102663071B1 - Coolant supply control module and heat pump system using it - Google Patents

Abstract

The present invention stores coolant and includes a reservoir tank including a first reservoir tank and a second reservoir tank, a coolant valve connected to the reservoir tank, and the coolant valve includes a valve housing in which a plurality of through holes are formed, and the valve. It is inserted into the housing and includes a rotor in which at least four coolant passages are formed, at least two of the plurality of through holes formed in the valve housing are connected to the first reservoir tank, and at least two are connected to the second reservoir. A cooling water supply control module is provided, which is connected to a tank.

Description

Coolant supply control module and heat pump system using it}

The embodiment relates to a cooling water supply control module and a heat pump system using the same. More specifically, it relates to a cooling water supply control module that can implement multiple modes by driving a single actuator and a heat pump system using the same.

Recently, electric vehicles have emerged as a social issue to implement environmentally friendly technology and solve problems such as energy depletion. Electric vehicles operate using a motor that receives electricity from a battery and outputs power, so there are no carbon dioxide emissions, the noise is very low, and the energy efficiency of the motor is higher than that of the engine, making it an eco-friendly vehicle. I'm receiving it.

The key to implementing such electric vehicles is technology related to battery modules, and recent research has been actively conducted on the lightweight, miniaturization, and short charging times of batteries. Battery modules must be used in an optimal temperature environment to maintain optimal performance and long lifespan. However, it is difficult to use in an optimal temperature environment due to heat generated during operation and external temperature changes.

As electric vehicles develop, battery systems become more complex, and the importance of electric vehicle thermal management systems using coolant is increasing.

In electric vehicle systems, the components that are thermally managed using coolant are largely electrical components and batteries. The coolant system dissipates and recovers heat generated from electrical components and batteries, or circulates coolant to a radiator or chiller through a coolant valve and pump to heat a low-temperature battery.

As these electric vehicle systems become more complex, the coolant system for thermal management is also becoming more complex. In order to efficiently manage the heat generated from electrical components and batteries, multiple coolant valves and coolant pumps are required, which is causing an increase in the price of the coolant system.

The purpose of the embodiment is to efficiently manage heat in the heat pump system of an electric vehicle.

The problem to be solved by the present invention is not limited to the problems mentioned above, and other problems not mentioned here will be clearly understood by those skilled in the art from the description below.

An embodiment of the present invention includes a reservoir tank that stores cooling water and includes a first reservoir tank and a second reservoir tank; It includes a coolant valve connected to the reservoir tank, wherein the coolant valve includes a valve housing in which a plurality of through holes are formed and a rotor inserted into the valve housing and in which at least four coolant passages are formed, and in the valve housing Among the plurality of through holes formed, at least two may be connected to the first reservoir tank, and at least two may be connected to the second reservoir tank.

Preferably, the first coolant flow path of the rotor is bent at 90 degrees. The second coolant flow path may have a 'T' shape, the third coolant flow path may have a shape bent at 90 degrees, and the fourth coolant flow path may have a 'T' shape.

Preferably, the valve housing has a 1-1 through hole and a 1-2 through hole that can be connected to the first coolant flow path according to the rotation of the rotor, and a 2-1-2 through hole that can be connected to the second coolant flow path. 1 through hole, 2-2 through hole and 2-3 through hole, 3-1 through hole and 3-2 through hole that can be connected to the third coolant flow path, and can be connected to the fourth coolant flow path. It may be characterized as including a 4-1 through hole, a 4-2 through hole, and a 4-3 through hole.

Preferably, the rotor may be characterized in that each passage is formed in a different rotor, and the rotor rotates through one actuator through connection.

Preferably, the reservoir tank is divided into a first reservoir tank and a second reservoir tank through a partition wall, and the partition wall may include an air gap.

Preferably, at least one of the through holes connected to the first coolant passage of the valve housing and at least one of the through holes connected to the second coolant passage are connected to the first reservoir tank, and the second coolant passage and At least one of the through holes connected and at least one of the through holes connected to the third coolant flow path may be connected to the second reservoir tank.

Preferably, the through hole connected to the first reservoir tank may be connected to the same surface of the first reservoir tank.

Preferably, the through hole connected to the second reservoir tank may be connected to the same surface of the second reservoir tank.

Preferably, a first coolant pump and a second coolant pump may be connected to each of the first reservoir tank and the second reservoir tank.

Preferably, one of the through holes connected to the third coolant flow path and one of the through holes connected to the fourth coolant flow path are connected to a first connector, and the first connector has a branch point in three directions. It can be characterized as:

Preferably, one of the through holes connected to the fourth coolant flow path is connected to a second connection pipe, and the second connection pipe may have a three-way branch point.

Preferably, the branches of the second connection pipe may penetrate the reservoir tank.

Preferably, the second reservoir tank may have a bent area, and at least two of the through holes connected to the second reservoir tank may be connected to the bent area.

In addition, the present invention includes a refrigerant circulation line in which a compressor, a first heat exchanger, a second heat exchanger, and a chiller are disposed to circulate the refrigerant; A first coolant line that circulates between the heat dissipation heat exchanger and the electrical components; a second coolant line circulating between the chiller and heating components; and the coolant supply control module of any one of claims 1 to 13, wherein the first coolant line and the second coolant line may be separated or connected through the coolant supply control module. there is.

Preferably, the first coolant line may be connected to a first reservoir tank, and the second coolant line may be connected to a second reservoir tank.

Preferably, the second coolant line may be formed as a bypass line that bypasses the chiller.

Preferably, the refrigerant circulation line may further include an internal heat exchanger disposed inside the air conditioning device.

According to an embodiment, the efficiency of heat management in the heat pump system of an electric vehicle can be increased.

The various and beneficial advantages and effects of the present invention are not limited to the above-described content, and may be more easily understood through description of specific embodiments of the present invention.

1 is a perspective view of a coolant supply control module according to an embodiment of the present invention;
Figure 2 is a side view of Figure 1,
Figure 3 is a diagram showing the structure of a coolant valve, which is a component of Figure 1;
Figure 4 is a diagram showing the structure of a rotor, which is a component of Figure 3;
Figure 5 is a diagram showing the internal connection structure of Figure 1,
Figure 6 is a diagram showing the operation in the first air conditioning mode in Figure 5;
Figure 7 is a diagram showing operation in the second air conditioning mode in Figure 5;
Figure 8 is a diagram showing operation in the third air conditioning mode in Figure 5;
Figure 9 is a diagram showing operation in the fourth air conditioning mode in Figure 5;
10 is a structural diagram of a vehicle heat pump system according to another embodiment of the present invention;
Figure 11 is a diagram showing the operation in the first air conditioning mode of Figure 10,
FIG. 12 is a diagram showing operation in the second air conditioning mode of FIG. 10,
FIG. 13 is a diagram showing operation in the third air conditioning mode of FIG. 10,
FIG. 14 is a diagram showing operation in the fourth air conditioning mode of FIG. 10.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings.

However, the technical idea of the present invention is not limited to some of the described embodiments, but may be implemented in various different forms, and as long as it is within the scope of the technical idea of the present invention, one or more of the components may be optionally used between the embodiments. It can be used by combining and replacing.

In addition, terms (including technical and scientific terms) used in the embodiments of the present invention, unless explicitly specifically defined and described, are generally understood by those skilled in the art to which the present invention pertains. It can be interpreted as meaning, and the meaning of commonly used terms, such as terms defined in a dictionary, can be interpreted by considering the contextual meaning of the related technology.

Additionally, the terms used in the embodiments of the present invention are for describing the embodiments and are not intended to limit the present invention.

In this specification, the singular may also include the plural unless specifically stated in the phrase, and when described as “at least one (or more than one) of A and B and C”, it is combined with A, B, and C. It can contain one or more of all possible combinations.

Additionally, when describing the components of an embodiment of the present invention, terms such as first, second, A, B, (a), and (b) may be used.

These terms are only used to distinguish the component from other components, and are not limited to the essence, order, or order of the component.

And, when a component is described as being 'connected', 'coupled' or 'connected' to another component, the component is not only directly connected, coupled or connected to that other component, but also is connected to that component. It can also include cases where other components are 'connected', 'combined', or 'connected' due to another component between them.

Additionally, when described as being formed or disposed “above” or “below” each component, “above” or “below” refers not only to cases where two components are in direct contact with each other, but also to one This also includes cases where another component described above is formed or placed between two components. Additionally, when expressed as “top (above) or bottom (bottom),” it can include not only the upward direction but also the downward direction based on one component.

Hereinafter, embodiments will be described in detail with reference to the attached drawings, but identical or corresponding components will be assigned the same reference numbers regardless of reference numerals, and duplicate descriptions thereof will be omitted.

1 to 14 clearly illustrate only the main features in order to clearly understand the present invention conceptually, and as a result, various modifications of the illustration are expected, and the scope of the present invention is limited by the specific shape shown in the drawings. It doesn't have to be.

Referring to FIGS. 1 to 9 , the coolant supply control module according to an embodiment of the present invention may include a reservoir tank 100, a coolant valve 200, and an actuator 300.

The reservoir tank 100 stores coolant that overflows due to excessive pressure while the coolant is circulating in the vehicle's system, and may serve to maintain the level of the coolant by replenishing the coolant when the coolant is insufficient.

The reservoir tank 100 may include a first reservoir tank 110 and a second reservoir tank 130.

In one embodiment, the reservoir tank 100 may divide a space in which one coolant is stored into a first reservoir tank 110 and a second reservoir tank 130 through a partition wall 120.

The first reservoir tank 110 and the second reservoir tank 130 are connected to the coolant valve 200, and each can be separated and connected to a separate coolant line, and the first reservoir tank 110 and the second reservoir tank (130) may be connected.

Additionally, the partition wall 120 may divide the reservoir tank 100 into a first reservoir tank 110 and a second reservoir tank 130. In one embodiment, the partition wall 120 may have a structure that is recessed inward and may include an air gap 121 therein. The air gap 121 separates the first reservoir tank 110 and the second reservoir tank 130 and may block heat conduction.

The coolant valve 200 is connected to the reservoir tank 100 and can control the direction of movement of the coolant. The coolant valve 200 may include a valve housing 210 in which a plurality of through holes are formed and a rotor 230 that is inserted into the valve housing 210 and in which a plurality of coolant flow paths are formed.

The rotor 230 may be provided with four coolant passages. The first coolant flow path 231a of the rotor 230 has a shape bent at 90 degrees. The second coolant flow path 232a may have a 'T' shape, the third coolant flow path 233a may have a shape bent at 90 degrees, and the fourth coolant flow path 234a may have a 'T' shape.

This rotor 230 may have a structure in which a plurality of rotors 230 are connected.

In one embodiment, the first rotor 231 has a first coolant flow path 231a, the second rotor 232 has a second coolant flow path 232a, and the third rotor 233 has a third coolant flow path 233a. ), a fourth coolant passage 234a may be formed in the fourth rotor 234.

In addition, each rotor 230 may be provided with a protrusion and a connection groove to be connected to each other.

The first rotor 231 has a first protrusion 231b, the second rotor 232 has a second protrusion 232b and a second connection groove (not shown), and the third rotor 233 has a third protrusion ( 233b) and a third connection groove (not shown) may be provided, and the fourth rotor 234 may be provided with a fourth connection groove (not shown).

The first rotor 231 to the fourth rotor 234 can operate as one body through a coupling structure of the protrusion and the connection groove. An actuator 300 is coupled to one side of the fourth rotor 234 to receive driving force.

The protrusion and the connection groove are provided to fit with each other to transmit the rotational force generated by the actuator 300.

The valve housing 210 forms an internal space into which the cylindrical rotor 230 is inserted, and may have a structure in which the outer surface of the rotor 230 and the inner surface of the valve housing 210 are in close contact.

The valve housing 210 is formed with a plurality of through holes, and each through hole may be connected to a flow path formed in the rotor 230 or may have a structure that is blocked by the rotation of the rotor 230.

The valve housing 210 has a 1-1 through hole and a 1-2 through hole that can be connected to the first coolant flow path 231a according to the rotation of the rotor 230, and can be connected to the second coolant flow path 232a. A 2-1 through hole (212a), a 2-2 through hole (212b), and a 2-3 through hole (212c) that can be connected to the third coolant flow path (233a) (213a) and the 3-2 through hole (213b), the 4-1 through hole (214a), the 4-2 through hole (214b) and the 4-3 that can be connected to the fourth coolant flow path (234a). It may include a through hole 214c.

In one embodiment, the first coolant flow path 231a formed in the first rotor 231 is bent at 90 degrees, and includes a 1-1 through hole 211a and a 1-2 through hole 211b. The center is placed on the same line, so that when the first rotor 231 rotates, the first coolant flow path (231a) communicates with the 1-1 through hole (211a) and the 1-2 through hole (211b) or the valve housing ( 210) can be provided with a structure that is closed by contacting the inner wall.

The second coolant flow path 232a formed in the second rotor 232 is provided in a 'T' shape, and includes a 2-1 through hole 212a, a 2-2 through hole 212b, and a 2-3 through hole 212a. The center may be disposed on the same line as the through hole 212c, so that when the second rotor 232 rotates, the second coolant passage 232a may be connected or closed.

The third coolant flow path 233a formed in the third rotor 233 is provided in a shape bent at 90 degrees and is centered on the same line as the 3-1 through hole 213a and the 3-2 through hole 213b. This arrangement may provide a structure in which the third coolant passage 233a is connected or closed when the third rotor 233 rotates.

The fourth coolant passage 234a formed in the fourth rotor 234 is provided in a 'T' shape, and includes a 4-1 through hole 214a, a 4-2 through hole 214b, and a 4-3 through hole 214b. The center is disposed on the same line as the through hole 214c, so that the fourth coolant passage 234a is connected or closed when the second rotor 232 rotates.

In this way, connection and closure of the coolant flow path formed in the rotor 230 and the through hole formed in the valve housing 210 can be determined through rotation of the rotor 230.

At least two of the plurality of through holes formed in the valve housing 210 may be connected to the first reservoir tank 110, and at least two may be connected to the second reservoir tank 130.

In one embodiment, at least one of the through holes connected to the first coolant flow path 231a of the valve housing 210 and at least one of the through holes connected to the second coolant flow path 232a are connected to the first reservoir tank 110. At least one of the through holes connected to the second coolant flow path 232a and at least one of the through holes connected to the third coolant flow path 233a may be connected to the second reservoir tank 130.

Coolant may flow into the first rotor 231 through the 1-1 through hole 211a of the valve housing 210 connected to the first rotor 231, and the inflow coolant may flow into the first coolant flow path 231a. ) may flow into the first reservoir tank 110. In one embodiment, the 1-1 through hole 211a may allow coolant passing through the radiator to flow in, and the 1-2 through hole 211b may be connected to the first reservoir tank 110.

The 2-1 through hole 212a of the valve housing 210 connected to the second rotor 232 is connected to the first reservoir tank 110, so that the first rotor 231 and the second rotor 232 It may be connected through the first reservoir tank 110.

The 2-2 through hole 212b of the valve housing 210 is connected to the second reservoir tank 130, and the first reservoir tank 110 and the second reservoir tank 130 are connected through the second coolant flow path 232a. ) can be connected.

The second-third through hole 212c of the valve housing 210 is connected to the vehicle's heat pump system through which coolant can move. In one embodiment, the 2-3 through hole 212c may be connected to the chiller 17, which is a component of the heat pump system.

The through hole connected to the first reservoir tank 110 may be connected to the same surface of the first reservoir tank 110. In one embodiment, the 1-2 through hole 211b and the 2-1 through hole 212a formed in the valve housing 210 may be connected to the bottom of the first reservoir tank 110. The 1-2 through hole 211b and the 2-1 through hole 212a are connected to the same surface of the first reservoir tank 110 to minimize the connection structure, thereby simplifying the control module structure.

The 3-1 through hole 213a of the valve housing 210 connected to the third rotor 233 may be connected to the second reservoir tank 130. The 2-2 through hole 212b connected to the second coolant passage 232a and the 3-1 through hole 213a connected to the third coolant passage 233a are located on different rotation axes in the rotor 230. It is placed. At this time, the through hole connected to the second reservoir tank 130 may be connected to the same surface of the second reservoir tank 130.

In one embodiment, the second reservoir tank 130 has a curved area on one side to connect the 2-2 through hole 212b and the 3-1 through hole 213a, and the 2-2 through hole (212b) and the 3-1 through hole 213a may be disposed in a curved area of the second reservoir tank 130. When the first reservoir tank 110 and the second reservoir tank 130 are connected to the valve housing 210, the first reservoir tank 110 and the second reservoir tank 130 are used to form a circulation structure with the rotor 230. A structure connected to the rotor 230 is required. However, when the reservoir tank 100 on one side is reduced or enlarged to form this structure, a problem with coolant capacity may occur. In order to solve this problem, the first area of the second reservoir tank 130 can be bent. In the present invention, the first reservoir tank 130 is implemented in a bent form, but the present invention is not limited to this, and the first reservoir tank 110 may be implemented in a bent form.

Additionally, coolant passing through the battery may flow into the 3-2 through hole 213b.

The 4-1st through-hole (214a), the 4-2nd through-hole (214b), and the 4-3th through-hole (214c) of the valve housing 210 connected to the fourth rotor 234 are used in the vehicle heat pump system. It is connected to the coolant flow path and allows coolant to move. In one embodiment, the 4-1 through hole 214a and the 4-2 through hole 214b may be arranged to be connected to a heating component 51 such as a battery, and the 4-3 through hole 214c Can be arranged to be connected to the chiller (17).

Additionally, a first coolant pump 111 and a second coolant pump 131 may be connected to each of the first reservoir tank 110 and the second reservoir tank 130. Coolant moving through the coolant line may be pumped through a pump.

At this time, the first reservoir tank 110 and the second reservoir tank 130 may be separated according to the operation of the coolant valve 200, and when the coolant is separated, each reservoir tank 100 is installed for circulation of the coolant. A coolant pump can be connected.

In one embodiment, the first coolant pump 111 is connected to the first reservoir tank 110 and can circulate coolant through a coolant line that circulates the electrical components 32, and the second coolant pump 131 is connected to the first reservoir tank 110. 2 Coolant can be circulated through a coolant line that is connected to the reservoir tank 130 and circulates through heating parts 51 such as batteries.

One of the through holes connected to the third coolant passage 233a of the rotor 230 and one of the through holes connected to the third coolant passage 233a are connected to the first connector 400, and the first connector 400 is connected to the first connector 400. (400) may have a branch point in three directions.

In one embodiment, the 3-2 through hole 213b and the 4-1 through hole 214a are connected to the first connector 400, and the remaining side of the first connector 400 is connected to the coolant line. It may be connected to a line through which the coolant passing through the heating part 51 moves.

Additionally, one of the through holes connected to the fourth coolant flow path 234a of the rotor 230 is connected to the second connection pipe 500, and the second connection pipe 500 may have a three-way branch point.

At this time, the branches of the second connection pipe 500 may be arranged to penetrate the reservoir tank 100.

In one embodiment, the 4-1 through hole 214a connected to the fourth coolant flow path 234a is connected to one side of the second connector 500, and the remaining branch of the second connector 500 is a reservoir tank. It may have a structure that branches off after penetrating (100). At this time, the remaining two branch pipes may be connected to the coolant line flowing into the radiator and the coolant line through which the coolant passing through the electrical component 32 moves. This penetrating structure has a structure that penetrates the reservoir tank 100 to optimize the arrangement structure of the second connector 500, and through this, miniaturization of the control module can be achieved.

The actuator 300 can be connected to one side of the coolant valve 200 and driven. The actuator 300 is connected to the rotor 230 of the coolant valve 200, and the rotational force generated by the actuator 300 drives the rotor 230 to control the direction of movement of coolant moving through the coolant flow path.

Meanwhile, hereinafter, a heat pump system using a cooling water supply control module according to another embodiment of the present invention will be described with reference to the attached drawings. However, the description of the same items as described in the coolant supply control module according to an embodiment of the present invention will be omitted.

FIG. 10 is a structural diagram of a vehicle heat pump system according to another embodiment of the present invention, FIG. 11 is a diagram showing operation in the first air conditioning mode of FIG. 10, and FIG. 12 is a diagram showing the operation in the second air conditioning mode of FIG. 10. This is a diagram showing the operation of , FIG. 13 is a diagram showing the operation in the third air conditioning mode of FIG. 10, and FIG. 14 is a diagram showing the operation in the fourth air conditioning mode of FIG. 10.

Referring to FIG. 10, a heat pump system according to another embodiment of the present invention may include a refrigerant circulation line 10 and a coolant line.

The refrigerant circulation line 10 includes a compressor 11, a first heat exchanger 13, a second heat exchanger 15, and a chiller 17 so that the refrigerant can circulate.

The compressor 11 is driven by receiving power from an engine (internal combustion engine) or a motor, sucks in refrigerant, compresses it, and then discharges it to the first heat exchanger 13 in a high-temperature, high-pressure gaseous state.

A first expansion valve (!2) may be disposed on the moving line from the compressor 11 to the first heat exchanger 13.

The first expansion valve (!2) may serve to throttle or bypass the refrigerant discharged from the compressor (11) or block the flow of the refrigerant, and operates in the direction of the refrigerant flow of the first heat exchanger (13). It can be placed at the entrance side.

The first heat exchanger 13 may be a condenser. The condenser condenses the compressed refrigerant, and the condensed refrigerant moves along the refrigerant circulation line (10).

The condensed refrigerant may branch from the refrigerant branch and move to the first refrigerant line (10a) and the second refrigerant line (10b).

A second expansion valve 14 and a second heat exchanger 15 may be disposed in the first refrigerant line 10a.

The second expansion valve 14 may serve to throttling or bypassing the refrigerant flowing in from the first refrigerant line 10a or blocking the flow of the refrigerant, and is connected to the second heat exchanger 15 in the direction of the refrigerant flow. ) can be placed on the entrance side of the.

The second heat exchanger 15 may be an evaporator. The evaporator is installed inside the air conditioning case, is placed in the first refrigerant line (10a), and is supplied with the refrigerant discharged from the first expansion valve (!2), and the air flowing inside the air conditioning case through the blower operates the evaporator. In the process of passing through, it exchanges heat with the low-temperature, low-pressure refrigerant inside the evaporator and is converted into cold air, which is then discharged into the vehicle interior to cool the interior of the vehicle.

A third expansion valve 16 and a chiller 17 may be disposed in the second refrigerant line 10b.

The second expansion valve 14 may serve to throttle or bypass the refrigerant flowing in from the second refrigerant line 10b or block the flow of the refrigerant, and is located at the inlet of the chiller 17 in the direction of the refrigerant flow. Can be placed on the side.

The chiller 17 is supplied with the low-temperature, low-pressure refrigerant discharged from the second expansion valve 14 and exchanges heat with the coolant moving in the coolant circulation line. The cold coolant heat-exchanged in the chiller 17 may circulate through the coolant circulation line and exchange heat with the high-temperature battery. In other words, the battery exchanges heat with the coolant rather than with the refrigerant.

The accumulator 18 is installed on the inlet side of the compressor 11, where the refrigerant that has passed through the second heat exchanger 15 and/or the chiller 17 joins, and separates the liquid refrigerant and the gaseous refrigerant, so that only the gaseous refrigerant is used. Ensure that it can be supplied to the compressor (11).

Additionally, the refrigerant circulation line 10 may further include an internal heat exchanger 19 disposed inside the air conditioning device.

The internal heat exchanger 19 is disposed inside the air conditioning system and cools the interior of the vehicle using the high-temperature, high-pressure refrigerant discharged from the compressor 11.

The coolant line through which coolant circulates may include a first coolant line 30 and a second coolant line 50.

The first coolant line 30 is provided to circulate coolant through the heat exchanger and the electrical components 32, and the second coolant line 50 is arranged to circulate coolant through the chiller 17 and the heating component 51. .

At this time, the first coolant line 30 and the second coolant line 50 may be separated or connected through a coolant supply control module.

The coolant moving through the first coolant line 30 may circulate through the heat dissipation heat exchanger, the first rotor 231, the first coolant pump 111, and the electrical components 32.

A radiator may be used as a heat dissipation heat exchanger. The radiator cools the coolant that has exchanged heat with the electrical components 32 or the battery, and the radiator may be air-cooled by a cooling fan.

The first rotor 231 is disposed within the coolant supply control module and performs the same role as a check valve to determine whether coolant moves from the radiator to the coolant supply control module.

The first coolant pump 111 is a means for pumping coolant so that the coolant circulates along the first coolant line 30, and the second pump may be disposed between the reservoir tank 100 and the electrical component 32.

The electrical component 32 is disposed on the first coolant line 30, and the electrical component 32 can be cooled by the coolant. And the electrical components 32 may be a drive motor, inverter, charger (OBC; On Board Charger), etc.

The coolant moving through the second coolant line 50 is a second coolant pump 131, a heating part 51, a coolant heater 52, a second rotor 232, a chiller 17, and a fourth rotor 234. can be cycled.

The second coolant pump 131 is a means for pumping coolant so that the coolant circulates along the second coolant line 50, and the second coolant pump 131 is disposed between the reservoir tank 100 and the heating part 51. It can be.

The heating part 51 may use a battery. The battery is the power source of the vehicle and can be the driving source of various electrical components 32 within the vehicle. Additionally, the battery can be connected to a fuel cell and play a role in storing electricity, or it can play a role in storing electricity supplied from outside. Additionally, the battery may exchange heat with the flowing coolant to cool or heat the battery.

The coolant heater 52 is a device that heats coolant. The coolant heater 52 can be operated when the temperature of the coolant is below a certain temperature, and various configurations such as an induction heater, sheath heater, PTC heater, and film heater that can generate heat using electric power can be used.

The second rotor 232 and the fourth rotor 234 are disposed inside the coolant supply control module, and the chiller 17 disposed between the second rotor 232 and the fourth rotor 234 determines whether the coolant moves. You can decide.

The second rotor 232 and the fourth rotor 234 perform the role of a three-way valve by rotating in the valve housing 210, and connect the first coolant line 30 and the second coolant line 50. You can decide whether or not.

The chiller 17 disposed between the second rotor 232 and the fourth rotor 234 may perform the same function as mentioned above.

Additionally, a bypass line that bypasses the chiller 17 may be disposed in the second coolant line 50. One side of the bypass line may be connected to the second coolant line 50, and the other side may be connected to the second reservoir tank 130. At this time, the third rotor 233 is disposed on the bypass line to control the movement of coolant to the bypass line.

One side of the first coolant line 30 and the second coolant line 50 may be connected through a coolant supply control module, and one side may be connected through a connection line.

In one embodiment, one side of the connection line may be connected to one side of the second connector 500, and the other side may be connected to the fourth rotor 234.

FIG. 11 is a diagram showing operation in the first air conditioning mode of FIG. 10.

Referring to Figures 6 and 11, the first air conditioning mode operates with the first coolant line 30 and the second coolant line 50 separated.

In the first air conditioning mode, the electrical components 32 are cooled through the first coolant line 30 circulating through the radiator, and the heating components 51 are cooled by the second coolant line 50 circulating through the chiller 17. It can be.

The coolant pumped through the first coolant pump passes through the electrical components 32, absorbs heat generated from the electrical components 32, and moves to the radiator along the first coolant line 30 to be cooled. At this time, the first rotor 231 opens the flow path to open the first coolant line 30, and the moving coolant line passes through the first reservoir tank 110 and circulates to the first coolant pump 111. You can.

The coolant moving along the second coolant line 50 is pumped through the second coolant pump 131 and moves by absorbing the heat of the heating part 51 (battery). At this time, the third rotor 233 operates to block the bypass line, and the fourth rotor 234 blocks the coolant moving to the connection line and cools the coolant through the chiller 17. The coolant passing through the chiller 17 may flow into the second reservoir tank 130 by the second rotor 232 and then move back to the second coolant pump 131 to circulate. At this time, the second rotor 232 may operate to separate the first reservoir tank 110 and the second reservoir tank 130.

FIG. 12 is a diagram showing operation in the second air conditioning mode of FIG. 10.

Referring to FIGS. 7 and 12, the second air conditioning mode is a structure that cools the electrical component 32 and the heating component 51 using a radiator.

The coolant cooled through the heat dissipation heat exchanger 31 flows into the first reservoir tank 110 through the first rotor 231, and the second rotor 232 and fourth rotor 234 are on the chiller (17) side. It may operate to block the second coolant line 50 that circulates and connect the first reservoir tank 110 and the second reservoir tank 130.

Through this, the coolant moving through the first rotor 231 branches out from the reservoir tank 100 and moves to one area of the first coolant line 30 and the second coolant line 50, and the first coolant line ( The coolant moving along 30 absorbs the heat of the electrical component 32, and the coolant moving along the second coolant line 50 absorbs the heat of the heating component 51 and moves. The cooling water moving in this way joins in the second connection pipe 500 and moves toward the heat dissipation heat exchanger 31.

FIG. 13 is a diagram showing operation in the third air conditioning mode of FIG. 10.

Referring to Figures 8 and 13, in the third air conditioning mode, the electrical components 32 are cooled through the chiller 17, and the battery circulates independently.

The first rotor 231 blocks one side of the first coolant line 30, and the coolant flowing out of the first reservoir tank 110 is pumped through the first coolant pump 111 to use the electrical components 32. It passes through the chiller 17 through the operation of the second rotor 232 and the fourth rotor 234 and flows into the first reservoir tank 110.

At this time, the first reservoir tank 110 and the second reservoir tank 130 may be separated through the second rotor 232 and the fourth rotor 234.

The coolant flowing out of the second reservoir tank 130 moves past the heating part 51 through the second coolant pump 131, and is discharged through the operation of the fourth rotor 234 and the third rotor 233. A circulation structure may be provided in which the coolant moves through the pass line and flows into the second reservoir tank 130.

FIG. 14 is a diagram showing operation in the fourth air conditioning mode of FIG. 10.

In the fourth air conditioning mode, the electrical components 32 and the heating components 51 are cooled through the chiller 17.

The first rotor 231 blocks one side of the first coolant line 30, and the coolant flowing out of the first reservoir tank 110 passes through the electrical component 32 and then moves toward the fourth rotor 230. I do it.

Additionally, the coolant flowing out of the second reservoir tank 130 passes through the heating part 51 and then moves toward the fourth rotor 234.

All outlets of the fourth rotor 234 and the second rotor 232 are open so that coolant can move.

Through this, the coolant that passed through the heating part (51) and the coolant that passed through the electrical component (32) join in the fourth rotor (234), are cooled through the chiller (17), and then move to the second rotor (232). Thus, a branched structure can be provided.

At this time, the third rotor 233 may operate to block the bypass line.

Above, embodiments of the present invention have been examined in detail with reference to the attached drawings.

The above description is merely an illustrative explanation of the technical idea of the present invention, and various modifications, changes, and substitutions can be made by those skilled in the art without departing from the essential characteristics of the present invention. will be. Accordingly, the embodiments disclosed in the present invention and the attached drawings are not intended to limit the technical idea of the present invention, but are for illustrative purposes, and the scope of the technical idea of the present invention is not limited by these embodiments and the attached drawings. . The scope of protection of the present invention should be interpreted in accordance with the claims below, and all technical ideas within the equivalent scope should be construed as being included in the scope of rights of the present invention.

10: Refrigerant circulation line 10a: First refrigerant line
10b: second refrigerant line 11: compressor
12: first expansion valve 13: first heat exchanger
14: second expansion valve 15: second heat exchanger
16: Third expansion valve 17: Chiller
18: Accumulator 19: Internal heat exchanger
30: first coolant line 31: heat dissipation heat exchanger
32: Electrical parts 50: Second coolant line
51: heating part 52: coolant heater
100 ; Reservoir tank 110: first reservoir tank
111: first coolant pump 120: partition wall
121: air gap 130: second reservoir tank
131: second coolant pump 200: coolant valve
210: Valve housing 211a: 1-1 through hole
211b: 1-2 through hole 212a: 2-1 through hole
212b: 2-2 through hole 212c: 2-3 through hole
213a: 3-1 through hole 213b: 3-2 through hole
214a: 4-1 through hole 214b: 4-2 through hole
214c: 4-3 through hole 230: rotor
231: first rotor 231a: first coolant flow path
232: second rotor 232a: second coolant flow path
233: Third rotor 233a: Third coolant flow path
234: fourth rotor 234a: fourth coolant flow path
300: Actuator 400: First connector
500: second connector

Claims (17)

a reservoir tank that stores coolant and includes a first reservoir tank and a second reservoir tank;
a coolant valve connected to the reservoir tank;
Includes,
The coolant valve is
A valve housing in which a plurality of through holes are formed, and
A rotor inserted into the valve housing and having at least four coolant passages.
Including,
Cooling water supply control module, wherein at least two of the plurality of through holes formed in the valve housing are connected to the first reservoir tank, and at least two are connected to the second reservoir tank. According to claim 1,
The first coolant flow path of the rotor is bent at 90 degrees. A coolant supply control module characterized in that the second coolant flow path has a 'T' shape, the third coolant flow path has a shape bent at 90 degrees, and the fourth coolant flow path has a 'T' shape. According to clause 2,
The valve housing moves according to the rotation of the rotor.
A 1-1 through hole and a 1-2 through hole that can be connected to the first coolant flow path,
A 2-1 through hole, a 2-2 through hole, and a 2-3 through hole that can be connected to the second coolant flow path,
A 3-1 through hole and a 3-2 through hole that can be connected to the third coolant flow path,
A coolant supply control module comprising a 4-1st through-hole, a 4-2nd through-hole, and a 4-3th through-hole that can be connected to the fourth coolant flow path. According to claim 1,
In the rotor, each flow path is formed in a different rotor,
Coolant supply control module, characterized in that the rotor rotates through one actuator through connection. According to claim 1,
The reservoir tank is divided into a first reservoir tank and a second reservoir tank through a partition wall,
Coolant supply control module, wherein the partition wall includes an air gap. According to clause 3,
At least one of the through holes connected to the first coolant flow path of the valve housing and at least one of the through holes connected to the second coolant flow path are connected to the first reservoir tank,
Coolant supply control module, wherein at least one of the through holes connected to the second coolant flow path and at least one of the through holes connected to the third coolant flow path are connected to the second reservoir tank. According to clause 6,
Cooling water supply control module, wherein the through hole connected to the first reservoir tank is connected to the same surface of the first reservoir tank. According to clause 6,
Cooling water supply control module, wherein the through hole connected to the second reservoir tank is connected to the same surface of the second reservoir tank. According to claim 1,
A coolant supply control module, characterized in that a first coolant pump and a second coolant pump are connected to each of the first reservoir tank and the second reservoir tank. According to clause 2,
One of the through holes connected to the third coolant flow path and one of the through holes connected to the fourth coolant flow path are connected to the first connector,
The first connection pipe is a coolant supply control module, characterized in that it has a branch point in three directions. According to clause 2,
One of the through holes connected to the fourth coolant flow path is connected to a second connector,
The second connector is a coolant supply control module characterized in that it has a three-way branch point. According to claim 11,
Coolant supply control module, characterized in that the branch of the second connection pipe penetrates the reservoir tank. According to clause 8,
The second reservoir tank has a curved area,
Cooling water supply control module, wherein at least two of the through holes connected to the second reservoir tank are connected to the bent area. A refrigerant circulation line in which a compressor, a first heat exchanger, a second heat exchanger, and a chiller are disposed to circulate the refrigerant;
A first coolant line that circulates between the heat dissipation heat exchanger and the electrical components;
a second coolant line circulating between the chiller and heating components; and
The coolant supply control module of any one of claims 1 to 13;
Includes,
A heat pump system, wherein the first coolant line and the second coolant line are separated or connected through the coolant supply control module. According to claim 14,
The first coolant line is connected to the first reservoir tank,
The second coolant line is a heat pump system characterized in that it is connected to a second reservoir tank. According to claim 14,
A heat pump system, wherein the second coolant line is formed as a bypass line that bypasses the chiller. According to claim 14,
The refrigerant circulation line is a heat pump system further comprising an internal heat exchanger disposed inside the air conditioning device.

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