KR20200139093A - Thermal management system - Google Patents

Abstract

A thermal management system of the present invention includes: a coolant heater that heats a coolant; a first coolant pump that is connected to a coolant inlet or a coolant outlet of the coolant heater to pump the coolant and is coupled to the coolant heater; and a second coolant pump that is connected to a battery side to pump the coolant and is coupled to the coolant heater. The coolant heater, the first coolant pump, and the second coolant pump are placed inside an engine room of a vehicle, so that the pressure loss of the coolant in a pipe connecting parts constituting the coolant system of the vehicle is reduced, thereby improving the performance of the system and reducing noise and vibration in the interior of the vehicle.

Description

Thermal management system

The present invention relates to a thermal management system in which parts constituting a cooling water system for heating a vehicle and cooling and heating electric components are modularized.

In recent years, electric vehicles are being spotlighted as solutions to problems such as the implementation of environmentally friendly technologies and energy depletion in the automotive field.

Electric vehicles run using a motor that is driven by receiving power from a battery or fuel cell, so carbon emissions are low and noise is low. In addition, electric vehicles are eco-friendly because they use motors that are more energy efficient than conventional engines.

Such an electric vehicle is equipped with a thermal management system for cooling and heating electronic components such as a driving motor, a battery, and an inverter for indoor air conditioning.

However, the thermal management system includes a cooling water system for cooling and heating the vehicle's interior heating and electrical components.The cooling water system has a large number of components for circulation of the cooling water and a large number of pipes connecting them. It's complicated and difficult. In addition, the length of the pipe connecting the parts becomes longer, resulting in loss of system performance due to a pressure drop in the flowing coolant.

KR 2014-0147365 A (2014.12.30.)

The present invention was conceived to solve the above-described problems, and an object of the present invention is to reduce the distance between components constituting the cooling water system for cooling and heating the interior heating of the vehicle and the electrical components. It is to provide a thermal management system that reduces the pressure loss of cooling water in the pipe, improves the performance of the system, and facilitates the management of noise and vibration.

The thermal management system of the present invention for achieving the above object comprises: a cooling water heater for heating cooling water; A first cooling water pump connected to a cooling water inlet or a cooling water outlet of the cooling water heater to pump cooling water and coupled to the cooling water heater; A second coolant pump connected to a side of the object to be temperature controlled to pump coolant and coupled to the coolant heater; Including, the coolant heater, the first coolant pump and the second coolant pump may be disposed inside the engine room of the vehicle.

In addition, the cooling water inlet of the first cooling water pump is connected to the cooling water outlet of the cooling water heater, and the first cooling water pump may be disposed below the cooling water outlet of the cooling water heater in a height direction.

In addition, a connection pipe connecting the cooling water outlet of the cooling water heater and the cooling water inlet of the first cooling water pump may be further included.

In addition, the cooling water heater may have an inlet pipe as a cooling water inlet and an outlet pipe as a cooling water outlet on one side, and the first cooling water pump and the second cooling water pump may be disposed on one side of the cooling water heater.

In addition, the first inlet pipe that is the cooling water inlet of the first cooling water pump and the second inlet pipe that is the cooling water inlet of the second cooling water pump are formed to protrude from each other, respectively, the first inlet pipe of the first cooling water pump And the second inlet pipe of the second cooling water pump may be disposed so as to overlap at least in part in the direction of the central axis of the first inlet pipe or the second inlet pipe.

In addition, the first inlet pipe of the first cooling water pump in the direction of the central axis of the first inlet pipe or the second inlet pipe is disposed to overlap the body of the second cooling water pump and the second inlet pipe, and the first inlet The second inlet pipe of the second coolant pump may be disposed to overlap with the body of the first coolant pump and the first inlet pipe in the direction of the central axis of the pipe or the second inlet pipe.

In addition, the first outlet pipe that is the cooling water outlet of the first cooling water pump is formed on the upper side in the height direction, and the second outlet pipe that is the cooling water outlet of the second cooling water pump is formed on the opposite side of the first outlet pipe in the height direction. I can.

In addition, a separately formed fixing bracket may be coupled to the cooling water heater, and a first fixing portion to which the first cooling water pump is coupled and a second fixing portion to which the second cooling water pump is coupled may be formed on the fixing bracket.

In addition, the first fixing part includes a 1-1 fixing part coupled to the cooling water heater and fixed, and a 1-2 fixing part coupled to the 1-1 fixing part and fixed, the 1-1 fixing part A first coolant pump may be disposed between and fixed between the and the 1-2 fixing portions.

In addition, the second fixing part includes a 2-1 fixing part coupled to and fixed to the cooling water heater and a 2-2 fixing part coupled to and fixed to the 2-1 fixing part, and the 2-1 fixing part A second coolant pump may be disposed between and fixed between the and the 2-2 fixing part.

In addition, the cooling water inlet of the cooling water heater may be connected to a cooling water outlet of a water-cooled condenser through which the refrigerant and the cooling water exchange heat with each other.

In addition, the cooling water outlet of the first cooling water pump may be connected to a heater core that exchanges heat with air supplied to the interior of the vehicle.

In addition, the cooling water inlet of the second cooling water pump may be connected to a reservoir tank capable of storing and replenishing cooling water, and the cooling water outlet of the second cooling water pump may be connected to a temperature control object side.

In the thermal management system of the present invention, the distance between the parts constituting the cooling water system for cooling and heating the interior heating of the vehicle and the cooling and heating of electronic parts is reduced, thereby reducing the pressure loss of the cooling water in the pipe connecting the parts, thereby improving the system performance. And, there is an advantage that a compact configuration of the cooling water system is possible.

In addition, there is an advantage in that it is easy to manage noise and vibration through the arrangement structure of the cooling water heater and the cooling water pump, and noise and vibration in the vehicle interior can be reduced.

1 is a block diagram showing an entire thermal management system including a cooling water system and a refrigerant system according to an embodiment of the present invention.
2 is an assembled perspective view showing a coupling structure of a coolant heater, a first coolant pump, and a second coolant pump in a thermal management system according to an embodiment of the present invention.
3 is a block diagram showing an arrangement structure of a coolant heater, a first coolant pump, and a second coolant pump in a vehicle in a thermal management system according to an embodiment of the present invention.
4 to 8 are an assembled perspective view, an exploded perspective view, a front view, a left side view, and a right side view showing a coupling structure of a coolant heater, a first coolant pump, and a second coolant pump in a thermal management system according to an embodiment of the present invention.

Hereinafter, a thermal management system of the present invention having the above-described configuration will be described in detail with reference to the accompanying drawings.

1 is a block diagram showing the entire thermal management system including a cooling water system and a refrigerant system according to an embodiment of the present invention, and FIG. 2 is a cooling water heater, a first cooling water pump, and a first cooling water pump in the thermal management system according to an embodiment of the present invention. 2 is an assembled perspective view showing the coupling structure of the coolant pump, and FIG. 3 is a block diagram showing an arrangement structure of a coolant heater, a first coolant pump, and a second coolant pump in a vehicle in a thermal management system according to an embodiment of the present invention.

As shown, the thermal management system of the present invention may be configured to include a cooling water heater 430, a first cooling water pump 450, and a second cooling water pump 340.

The cooling water heater 430 is a device that heats the cooling water, and the cooling water heater 430 may be connected to a downstream of the cooling water flow direction of the water-cooled condenser 220 in which the refrigerant and the cooling water exchange heat with each other. In addition, the cooling water heater 430 may be an electric heater, for example, and may be variously formed such as a sheath heater or a PC heater.

The first coolant pump 450 is a pump that pumps coolant along a connected coolant line, and the first coolant pump 450 may be connected upstream or downstream of the coolant heater 430 in a flow direction of the coolant. That is, as shown, the cooling water inlet of the first cooling water pump 450 may be connected to the cooling water outlet of the cooling water heater 430 by a connection pipe 433, etc., and although not shown, the cooling water of the first cooling water pump 450 The outlet may be connected to the cooling water inlet of the cooling water heater 430. In addition, the first coolant pump 450 may be coupled to and fixed to one side of the coolant heater 430.

The second coolant pump 340 is a pump that pumps coolant along the connected coolant line, and the second coolant pump 340 may be connected upstream of the temperature control object 350 in the flow direction of the coolant. In addition, the temperature control object 350 side may be a cooling system configured to circulate the cooling water to the temperature control object 350 and the chiller 252. Here, the temperature control object 350 may be a battery, and the chiller 252 may be a battery chiller.

Further, the second coolant pump 340 may be coupled to and fixed to one side of the coolant heater 430, and the second coolant pump 340 may be disposed to be spaced apart from the first coolant pump 340.

Thus, the cooling water heater 430, the first cooling water pump 450, and the second cooling water pump 340 may be configured in an integral module form.

Here, referring to FIG. 3, the coolant heater 430, the first coolant pump 450, and the second coolant pump 340 may be disposed inside the engine room 510 of the vehicle. That is, the coolant heater 430, the first coolant pump 450, and the second coolant pump 340 configured as an integral module are spaced apart from the interior 520 in which passengers board the vehicle. ) Can be placed within. In addition, when the vehicle is an electric vehicle, a battery, which is generally the temperature control object 350, may be disposed on the floor of the vehicle, which is the outside corresponding to the location of the interior 520 of the vehicle, or may be disposed on the trunk 530 side.

Accordingly, in the thermal management system of the present invention, the distance between the parts constituting the cooling water system for cooling and heating the interior heating of the vehicle and the electronic components is reduced, thereby reducing the pressure loss of the cooling water in the piping connecting the parts. This can be improved and a compact configuration of the cooling water system is possible.

Further, it is easy to manage noise and vibration through the arrangement structure of the cooling water heater and the cooling water pumps, and since the cooling water pumps can be arranged at a location far from the vehicle interior, noise and vibration in the vehicle interior can be reduced.

In addition, referring to FIG. 1, in the thermal management system including the cooling water system 300 and the refrigerant system 200 of the present invention, a cooling water system 300 that heats the room by circulating cooling water and cools and heats parts, and a refrigerant It may be composed of a refrigerant system 200 that is circulated to cool the room. In addition, the cooling water system 300 may include a heating line 301 for indoor heating and a cooling line 302 for cooling and heating the temperature control objects 350 and 360.

Here, the heating line 301 of the cooling water system 300 of the present invention includes a water-cooled condenser 220, a cooling water heater 430, a first cooling water pump 450, a heater core 440, and a first direction switching valve 410. ) Can be included.

The water-cooled condenser 220 may exchange heat with each other while passing the refrigerant and cooling water. The cooling water heater 430 is a device that heats cooling water, and may be connected to the rear of the water cooling condenser 220 and upstream of the first cooling water pump 450 in the flow direction of the cooling water. The first coolant pump 450 is a means for pumping coolant so that coolant is circulated along the heating line 301, and the first coolant pump 450 is downstream of the coolant heater 430 and a heater core in the flow direction of the coolant. It may be disposed upstream of 440 and installed on the cooling water line. The heater core 440 may be disposed in the air conditioner 150 of the vehicle, and the heater core 440 may be disposed downstream of the coolant heater 430 in the flow direction of the coolant to be connected. The first directional valve 410 may be installed between the heater core 440 and the water-cooled condenser 220, and selectively connect or connect the heating line 301 and the cooling line 302 to be described later. It can be configured to block. In more detail, the first directional valve 410 is installed on the heating line 301 so that the two cooling water line pipes are connected to the first directional valve 410 and branched from one side of the cooling line 302 Two first connection lines 302-1 are connected to the first directional valve 410, and one second connection line 302-2 branched from the other side of the cooling line 302 is a first directional valve It can be connected to 410. That is, the first directional valve 410 is connected to meet the four coolant lines, and the first directional valve 410 changes the direction in four directions to control the state in which the four coolant lines are connected or blocked. It can be a valve.

In addition, in the cooling water system 300, the cooling line 302 includes a radiator 310, a reservoir tank 370, a second directional valve 320, a third cooling water pump 420, and a first directional valve 410. , Temperature control object 460, first coolant joint 313, second coolant joint 312, second coolant pump 340, temperature control object 350, chiller 252, and a third directional valve ( 330) may be included. The radiator 310 is a heat exchanger that cools the cooling water heat-exchanged with the temperature control objects 350 and 460, and the radiator 310 may be cooled in an air-cooled manner by the cooling fan 311. The reservoir tank 370 serves to store coolant and supplement the insufficient coolant on the coolant line, and the reservoir tank 370 is upstream of the third coolant pump 420 and the second coolant pump 340 in the flow direction of the coolant. It can be installed on the cooling water line. The second directional valve 320 is installed on the cooling line 302 so that two cooling water pipes are connected to the second directional valve 320, and the heating line 301 and the cooling line 302 are connected. The one-way selector valve 410 and the second direction selector valve 320 may be connected to the first connection line 302-1. That is, the second directional valve 320 is connected to meet the three cooling water lines, and the second directional valve 320 is configured to change the direction in three directions to control the state in which the three cooling water lines are connected or blocked. It can be a valve. The third coolant pump 420 is a means for pumping coolant so that coolant is circulated along the cooling line 302. And the third cooling water pump 420 is installed on the first connection line (302-1) between the first direction switching valve 410 and the second direction switching valve 320, the third cooling water pump 420 Coolant may flow from the second directional valve 320 to the first directional valve 410 by operation. The first directional valve 410 is the same as described in the heating line 301. The temperature control object 460 is disposed on the second connection line 302-2 connecting the first directional valve 410 and the second coolant joint 312, and the electrical component 460 is cooled by the coolant. Can be. In addition, the temperature control object 460 may be a driving motor, an inverter, an On Board Charger (OBC), or the like. The second coolant pump 340 is a means for pumping coolant so that coolant is circulated along the cooling line 302. And the second coolant pump 340 is installed in the coolant line between the first coolant joint 313 and the temperature control object 350, so that the coolant can flow from the second coolant pump 340 to the temperature control object 350. have. The battery, which is the temperature control object 350, is a power source of a vehicle and may be a driving source of various electric components in the vehicle. Alternatively, the battery may serve to store electricity by being connected to the fuel cell, or to store electricity supplied from the outside. In addition, the temperature control object 350 may be disposed on a cooling water line between the second cooling water pump 340 and the third direction switching valve 330. Thus, the temperature control object 350 may be cooled or heated by heat exchange with the flowing cooling water. The first coolant joint 313 is installed in a coolant line downstream of the second directional valve 320 in the flow direction of the coolant, and the first coolant joint 313 is connected so that three coolant lines meet. That is, the first coolant joint 313 is installed so that both sides are connected on the cooling line 302, and the third connection line 302-3 may be connected to the lower side. Here, the third connection line 302-3 may be connected to pass through the chiller 252. The second coolant joint 312 may be installed at a point where the downstream side of the second connection line 302-2 meets the cooling line 302, so that the three coolant lines meet at the second coolant joint 312. Connected. That is, the second coolant joint 312 is installed so that both sides are connected on the cooling line 302, and the second connection line 302-2 may be connected to the upper side. The chiller 252 is as described in the heating line 301 described above. The third directional valve 330 is installed on the cooling water line between the temperature control object 350 and the second cooling water joint 312, and two cooling water pipes are connected to the third directional valve 330, and The third connection line 302-3 is connected to the upper side of the three-way selector valve 330 so that the temperature control object 350 and the third connection line 302-3 may be connected in parallel. At this time, the second directional valve 320 may be a three-way directional valve capable of controlling a state in which three cooling water lines are connected to each other or blocked.

And the refrigerant system 200 includes a compressor 210, a water-cooled condenser 220, a first expansion valve 225, an air-cooled condenser 230, a first connection block 270, a second expansion valve 240, and an evaporator ( 242, a refrigerant heat exchanger 233, an accumulator 260, a third expansion valve 251 and a chiller 252 may be included.

The compressor 210 may be an electric compressor driven by receiving power, and serves to suction and compress a refrigerant and discharge it toward the water-cooled condenser 220. The water-cooled condenser 220 serves to heat-exchange the refrigerant discharged from the compressor 210 with cooling water to condense it into a liquid refrigerant and send it to the first expansion valve 225. The first expansion valve 225 may throttle or bypass the refrigerant or block the flow of the refrigerant, and may be disposed downstream of the water-cooled condenser 220 in the flow direction of the refrigerant. The air-cooled condenser 230 serves as a condenser or an evaporator, and the function of the air-cooled condenser 230 may be varied according to the role of the first expansion valve 225. That is, when the refrigerant system 200 is used as an air conditioner loop, the first expansion valve 225 is fully opened to pass the refrigerant, and the air-cooled condenser 230 acts as a condenser together with the water-cooled condenser 220, and the refrigerant system When 200 is used as a heat pump loop, the first expansion valve 225 throttles the refrigerant and the air-cooled condenser 230 serves as an evaporator. In addition, the air-cooled condenser 230 may be air-cooled or heated by external air. The first connection block 270 may be formed on the downstream side of the air-cooled condenser 230 in the flow direction of the refrigerant, and the first connection block 270 has a first port, a second port, and a third port. The three ports are communicated with each other through a flow path passing through. Thus, the first connection block 270 may be divided into two refrigerant lines so that one refrigerant line is connected to the evaporator 242 and the other refrigerant line is connected to the chiller 252. The second expansion valve 240 and the third expansion valve 251 may serve to throttle or pass the refrigerant or block the flow of the refrigerant. In addition, the second expansion valve 240 and the third expansion valve 251 may be configured in parallel. That is, the second expansion valve 240 is connected to one of the refrigerant lines branched from the first connection block 270 to the two refrigerant lines, and the third expansion valve 251 is connected to the other refrigerant line. I can. In this case, the second expansion valve 240 may be disposed upstream of the evaporator 242 in the flow direction of the refrigerant, and the third expansion valve 251 may be disposed upstream of the chiller 252. The evaporator 242 is disposed downstream of the second expansion valve 240 in the flow direction of the refrigerant, and is provided in the vehicle air conditioner 150 and flows by the blower 152 of the air conditioner. ) Is cooled and supplied to the interior of the vehicle to be used for indoor cooling of the vehicle. The refrigerant heat exchanger 233 serves to improve cooling performance by mutually exchanging the refrigerant flowing into the second expansion valve 240 and the refrigerant discharged from the evaporator 242. Here, in the refrigerant heat exchanger 233, a refrigerant line connecting the first connection block 270 and the second expansion valve 240 passes, and a refrigerant line connecting the evaporator 242 and the accumulator 260 passes. As a result, the refrigerant before flowing into the second expansion valve 240 and the refrigerant after passing through the evaporator 242 may exchange heat with each other in the refrigerant heat exchanger 233. Thus, the refrigerant may be further cooled before flowing into the second expansion valve 240 by the refrigerant heat exchanger 233, and the cooling performance through the evaporator 242 may be improved, and the efficiency of the refrigerant system may be improved. The chiller 252 is disposed downstream of the third expansion valve 251 in the flow direction of the refrigerant, and heat exchange with the cooling water to cool the cooling water. Thus, the second expansion valve 240 and the evaporator 242 form one set, and the third expansion valve 251 and the chiller 252 form another set, and two sets are formed in parallel on the refrigerant line. In addition, a refrigerant line may be joined at the rear side of the evaporator 242 and the chiller 252 in the refrigerant flow direction to form a single refrigerant line. The accumulator 260 may separate a liquid refrigerant and a gaseous refrigerant among refrigerants and supply only the gaseous refrigerant to the compressor 210. Here, the accumulator 260 is arranged and connected at the point where the rear side of the evaporator 242 and the refrigerant line on the downstream side of the chiller 252 merge, and the accumulator 260 is connected to the upstream of the compressor 210 in the refrigerant flow direction. Can be placed.

In addition, a blower 152 may be installed on one side of the air conditioner 150 to blow air, and a temperature control door 151 may be installed inside the air conditioner 150. In addition, the evaporator 242 and the heater core 440 disposed in the air conditioner allow the air discharged from the blower 152 to flow into the room after passing through only the evaporator 242 according to the operation of the temperature control door 151, After passing through the evaporator 242, it may be disposed and configured to pass through the heater core 440 to be introduced into the room.

Hereinafter, the configuration of the thermal management system according to an embodiment of the present invention described above will be described in more detail.

4 to 8 are an assembled perspective view, an exploded perspective view, a front view, a left side view, and a right side view showing a coupling structure of a coolant heater, a first coolant pump, and a second coolant pump in a thermal management system according to an embodiment of the present invention.

As shown, in the cooling water heater 430 of the thermal management system according to an embodiment of the present invention, the coolant introduced through the inlet pipe 431 is heated while flowing along the inside of the body, and then discharged through the outlet pipe 432. It is a coolant heating means that can be used. The coolant heater 430 may have a body formed in a rectangular parallelepiped shape, and an inlet pipe 431 through which cooling water flows in and an outlet pipe 432 through which cooling water is discharged from the front of the body in the width direction protrude forward. It can be formed into a shape. In addition, in the height direction, the inlet pipe 431 and the outlet pipe 432 may be formed on the upper side of the cooling water heater 430, and the inlet pipe 431 and the outlet pipe 432 may be spaced apart from each other in the longitudinal direction. . In addition, a separately formed fixing bracket 434 may be coupled to the cooling water heater 430, and separately formed first fixing portions 435 and second fixing portions 436 may be further coupled to the fixing bracket 434. At this time, in a state in which the fixing bracket 434 is coupled to the cooling water heater 430 and the first fixing portion 435 and the second fixing portion 436 are coupled to the fixing bracket 434, it is removed in the height direction and the length direction. The first fixing part 435 may be disposed under the inlet pipe 431 of the cooling water heater 430, and the second fixing part 436 may be disposed under the outlet pipe 432 of the cooling water heater 430. Also, the second fixing part 436 may be disposed below the first fixing part 435 in the height direction.

The first coolant pump 450 is a means for pumping coolant, and the first coolant pump 450 includes a first inlet pipe 451 through which coolant is introduced and a first outlet pipe 452 through which coolant is discharged after being boosted from the inside. ) Can be formed. The first coolant pump 450 is coupled to and fixed to the first fixing part 435 using a fastening means, etc., and the first coolant pump 450 is disposed in front of the coolant heater 430 in the width direction, The first inlet pipe 451 of the cooling water pump 450 may be disposed below the outlet pipe 432 of the cooling water heater 430 in a height direction. In addition, the first inlet pipe 451 of the first coolant pump 450 is formed to protrude from the right side in the longitudinal direction of the first coolant pump 450 toward the right in the longitudinal direction, and the first outlet pipe 452 is formed as a first coolant. It may be formed extending from the front side in the width direction of the pump 450 toward the upper side in the height direction.

The connection pipe 433 connects the outlet pipe 432 of the cooling water heater 430 and the first inlet pipe 451 of the first cooling water pump 450, and the connection pipe 433 is flexible for easy connection. It can be a hose, etc.

The second coolant pump 340 is also a means for pumping coolant, and the second coolant pump 340 includes a second inlet pipe 341 through which coolant is introduced and a second outlet pipe 342 through which coolant is discharged after being boosted from the inside. ) Can be formed. The second coolant pump 340 is coupled to and fixed to the second fixing unit 436 using a fastening means, etc., and the second coolant pump 340 is disposed in front of one side in the width direction of the coolant heater 430, As a result, the second coolant pump 340 may be disposed below the lower surface of the coolant heater 430. In addition, the second inlet pipe 341 of the second coolant pump 340 is formed to protrude from the left side in the longitudinal direction of the second coolant pump 340 toward the left side in the longitudinal direction, and the second outlet pipe 342 has a second The cooling water pump 340 may be formed to extend from the lower side in the height direction toward the rear side in the width direction.

Here, the first inlet pipe 451 of the first cooling water pump 450 and the second inlet pipe 341 of the second cooling water pump 340 are disposed to overlap each other in the longitudinal direction, and as shown in an example The first inlet pipe 451 of the first coolant pump 450 and the second inlet pipe 341 of the second coolant pump 340 may be disposed to be spaced apart from each other in the height direction. In addition, the first inlet pipe 451 of the first coolant pump 450 is disposed to overlap the body of the second coolant pump 340 and the second inlet pipe 341 in the longitudinal direction, and the second coolant pump 340 The second inlet pipe 341 of) may be disposed to overlap the body of the first cooling water pump 450 and the first inlet pipe 451 in the longitudinal direction.

Accordingly, the first coolant pump 450 and the second coolant pump 340 are disposed on the left and right sides in the longitudinal direction, from the left end of the first coolant pump 450 to the right end of the second coolant pump 340 The length of the cooling water system can be formed as short as possible, enabling a compact configuration of the cooling water system. In addition, the inlet pipe 431, the outlet pipe 432, the first coolant pump 450 and the second coolant pump 340 of the coolant heater 430 are all disposed in front of the coolant heater 430 in the width direction. Since the first coolant pump 450 and the second coolant pump 340 may be disposed to overlap each other in a direction, a compact coolant system can be configured. In addition, since the distance between the outlet pipe 432 of the cooling water heater 430 and the first inlet pipe 451 of the first cooling water pump 450 may be disposed relatively close, the length of the connection pipe 433 is also short. The cooling water may flow smoothly from the cooling water heater 430 to the first cooling water pump 450.

In addition, the first outlet pipe 452, which is the cooling water outlet of the first cooling water pump 450, is formed on the upper side in the height direction, and the first outlet pipe 452 is formed in a form extending from the front side in the width direction toward the upper side. I can. In addition, the second outlet pipe 342 of the second coolant pump 340 is formed on the opposite side of the first outlet pipe 452 of the first coolant pump 450, and the second outlet pipe 342 is a second coolant pump ( It may be formed in a form extending from the lower side in the height direction toward the rear side in the width direction. Thus, the first outlet pipe 452 of the first cooling water pump 450 and the second outlet pipe 342 of the second cooling water pump 340 are formed in different directions from each other, so that the cooling water pumps are compactly arranged. And can facilitate the connection of piping to the outlet pipes.

In addition, the first fixed government 435 may include the 1-1 fixed government 435-1 and the 1-2 fixed government 435-2, and the 1-1 fixed government 435-1 May be fixed to the fixing bracket 434 coupled to the cooling water heater 430 by fastening means such as bolts, and the 1-2 fixing part 435-2 is the 1-1 fixing part 435-1 ) Can be fixed by being combined with a fastening means such as a bolt. In addition, a first coolant pump 450 may be interposed between the 1-1 fixing part 435-1 and the 1-2 fixing part 435-2 to be fixed. Here, since the first coolant pump 450 has a generally cylindrical body, the front surface of the 1-1 fixing part 435-1 and the rear surface of the 1-2 fixing part 435-2 are formed to be concave. , The 1-1 fixing part (435-1) and the 1-2 fixing part (435-2) surround the first cooling water pump (450). ) Can be fixed.

Likewise, the second fixed portion 436 may also include a 2-1 fixed portion 436-1 and a 2-2 fixed portion 436-2, and the 2-1 fixed portion 436-1 The fixing bracket 434 coupled to the cooling water heater 430 may be coupled to and fixed by a fastening means such as a bolt, and the 2-2 fixing part 436-2 is the 2-1 fixing part 436-1. It can be fixed by being coupled with a fastening means such as a bolt. In addition, a second coolant pump 340 may be interposed between the 2-1 fixing part 436-1 and the 2-2 fixing part 436-2 to be fixed. Here, the second coolant pump 340 also has a cylindrical body, so that the front surface of the 2-1 fixing part 436-1 and the rear surface of the 2-2 fixing part 436-2 are concave, The 2-1 fixing part 436-1 and the 2-2 fixing part 436-2 surround the second cooling water pump 340, and the second cooling water pump 340 is attached to the second fixing part 436. Can be fixed.

In addition, the first inlet pipe 451 of the first coolant pump 450 is disposed not to overlap with the second fixing portion 436 in the width direction and the height direction, and the second inlet pipe of the second coolant pump 340 The 341 may be disposed not to overlap with the first fixing part 435 in the width direction and the height direction. That is, as shown, when viewed from the left in the longitudinal direction, the first fixing part 435 is formed so as not to cover the second inlet pipe 341 of the second coolant pump 340, so that the hose or pipe is connected to the second coolant. It can be easily connected to the second inlet pipe 341 of the pump 340 in the longitudinal direction. Likewise, when viewed from the right side in the longitudinal direction, the second fixing part 436 is formed so as not to cover the first inlet pipe 451 of the first coolant pump 450, so that the connecting pipe 433 is connected to the first coolant pump 450. ) Can be easily connected to the first inlet pipe 451 in the longitudinal direction.

Accordingly, in the cooling water system of the present invention, the distance between the components constituting the cooling water system for cooling and heating the interior heating of the vehicle and the electronic components decreases, thereby reducing the pressure loss of the refrigerant in the pipe connecting the components, and Performance is improved, a compact configuration of the cooling water system is possible, and assemblability of parts constituting the cooling water system can be improved.

In addition, the ends of the fixing bracket 434 to which the coolant heater 430, the first coolant pump 450, and the second coolant pump 340 are coupled and fixed are coupled to the vehicle body or surrounding parts to make it firm Can be fixed.

In addition, the inlet pipe 431 of the cooling water heater 430 may be connected to the cooling water outlet of the water-cooled condenser 220. In addition, the first outlet pipe 452 of the first coolant pump 450 is connected to the heater core 440, and the coolant heated by the coolant heater 430 passes through the first coolant pump 450 to the heater core 440. ), and can be used for heating in winter. In this case, the coolant passing through the heater core 440 may heat the electrical component 460 while passing through the electrical component 460. In addition, the second inlet pipe 341 of the second coolant pump 340 is connected to the reservoir tank 370, and the second outlet pipe 342 of the second coolant pump 340 is on the side of the temperature control object 350 It is connected to, it is possible to cool or heat the temperature control object 350 using the cooling water.

The present invention is not limited to the above-described embodiments, and the scope of application thereof is diverse, as well as anyone with ordinary knowledge in the field to which the present invention belongs without departing from the gist of the present invention claimed in the claims. Of course, various modifications are possible. For example, in the above embodiment, the air conditioner 150 has been described as being disposed in the interior 520, but the air conditioner 150 may be disposed in the engine room 510. In the case of an electric vehicle, since there is no engine in the engine room 510, even if the air conditioner 150 is provided in the engine room 510, there is no problem in utilizing the space of the engine room 510. Since 150) can be removed, there is an advantage in that the room 520 can be more fully utilized. Of course, even if the air conditioner 150 is disposed in the engine room 510, a duct connecting the air conditioner 150 and the interior 520 must be provided.

150: air conditioning device 151: temperature control door
152: blower
200: refrigerant system 210: compressor
220: water-cooled condenser 225: first expansion valve
230: air-cooled condenser 233: refrigerant heat exchanger
240: second expansion valve 242: evaporator
251: third expansion valve 252: chiller
260: accumulator 270: first connection block
300: cooling water system 301: heating line
302: cooling line 302-1: first connection line
302-2: second connection line 302-3: third connection line
310: radiator 311: cooling fan
312: second coolant joint 313: first coolant joint
320: second directional valve 330: third directional valve
340: second coolant pump
341: second inlet pipe 342: second outlet pipe
350: temperature control object 370: reservoir tank
410: first direction switching valve 420: third coolant pump
430: coolant heater
431: inlet pipe 432: outlet pipe
433: connection piping 434: fixing bracket
435: First fixed government
435-1: 1-1 fixed government 435-2: 1-2 fixed government
436: Second fixed government
436-1: 2-1 fixed government 436-2: 2-2 fixed government
440: heater core 450: first coolant pump
451: first inlet pipe 452: first outlet pipe
460: temperature control object
510: engine room 520: indoor
530: trunk

Claims (13)

A coolant heater for heating the coolant;
A first cooling water pump connected to a cooling water inlet or a cooling water outlet of the cooling water heater to pump cooling water and coupled to the cooling water heater;
A second coolant pump connected to a side of the object to be temperature controlled to pump coolant and coupled to the coolant heater; Including,
The coolant heater, the first coolant pump, and the second coolant pump are disposed inside an engine room of a vehicle.
The method of claim 1,
The cooling water inlet of the first cooling water pump is connected to the cooling water outlet of the cooling water heater, and the first cooling water pump is disposed below the cooling water outlet of the cooling water heater in a height direction.
The method of claim 2,
The thermal management system further comprises a connection pipe connecting the cooling water outlet of the cooling water heater and the cooling water inlet of the first cooling water pump.
The method of claim 1,
The cooling water heater has an inlet pipe as a cooling water inlet and an outlet pipe as a cooling water outlet on one side,
The first cooling water pump and the second cooling water pump is a thermal management system, characterized in that disposed on one side of the cooling water heater.
The method of claim 4,
The first inlet pipe that is the cooling water inlet of the first cooling water pump and the second inlet pipe that is the cooling water inlet of the second cooling water pump are formed to protrude from each other,
The first inlet pipe of the first cooling water pump and the second inlet pipe of the second cooling water pump are arranged to overlap at least in part in the direction of the central axis of the first inlet pipe or the second inlet pipe. .
The method of claim 5,
The first inlet pipe of the first cooling water pump in the direction of the central axis of the first inlet pipe or the second inlet pipe is disposed to overlap the main body and the second inlet pipe of the second cooling water pump,
A thermal management system, characterized in that the second inlet pipe of the second coolant pump is disposed to overlap the body of the first coolant pump and the first inlet pipe in the direction of the central axis of the first inlet pipe or the second inlet pipe.
The method of claim 4,
The first outlet pipe, which is the cooling water outlet of the first cooling water pump, is formed on the upper side in the height direction, and the second outlet pipe, which is the cooling water outlet of the second cooling water pump, is formed on the opposite side of the first outlet pipe in the height direction. Cooling water system.
The method of claim 1,
A cooling water system, characterized in that a separately formed fixing bracket is coupled to the cooling water heater, and a first fixing part to which the first cooling water pump is coupled and a second fixing part to which the second cooling water pump is coupled are formed on the fixing bracket.
The method of claim 8,
The first fixing part includes a 1-1 fixing part coupled to the cooling water heater and fixed, and a 1-2 fixing part coupled to the 1-1 fixing part and fixed, the 1-1 fixing part and the first fixing part. A cooling water system, characterized in that the first cooling water pump is disposed and fixed between the 1-2 fixing portions.
The method of claim 8,
The second fixing part includes a 2-1 fixing part coupled to and fixed to the cooling water heater and a 2-2 fixing part coupled to the 2-1 fixing part and fixed, the 2-1 fixing part and the second fixing part. A cooling water system, characterized in that a second cooling water pump is disposed between and fixed between the 2-2 fixing portions.
The method of claim 1,
A cooling water system, wherein the cooling water inlet of the cooling water heater is connected to a cooling water outlet of a water-cooled condenser in which the refrigerant and the cooling water exchange heat with each other.
The method of claim 1,
The cooling water outlet of the first cooling water pump is connected to a heater core that exchanges heat with air supplied to the interior of the vehicle.
The method of claim 1,
The cooling water inlet of the second cooling water pump is connected to a reservoir tank capable of storing and replenishing cooling water, and the cooling water outlet of the second cooling water pump is connected to a temperature control object side.

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