KR20130058432A - Heat exchanger for vehicle and cooling system having the same - Google Patents

Heat exchanger for vehicle and cooling system having the same Download PDF

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Publication number
KR20130058432A
KR20130058432A KR1020110124434A KR20110124434A KR20130058432A KR 20130058432 A KR20130058432 A KR 20130058432A KR 1020110124434 A KR1020110124434 A KR 1020110124434A KR 20110124434 A KR20110124434 A KR 20110124434A KR 20130058432 A KR20130058432 A KR 20130058432A
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KR
South Korea
Prior art keywords
hole
heat dissipation
heat exchanger
vehicle
dissipation unit
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KR1020110124434A
Other languages
Korean (ko)
Inventor
김재연
Original Assignee
현대자동차주식회사
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Publication date
Application filed by 현대자동차주식회사 filed Critical 현대자동차주식회사
Priority to KR1020110124434A priority Critical patent/KR20130058432A/en
Priority to US13/490,881 priority patent/US20130133875A1/en
Priority to JP2012131952A priority patent/JP2013113579A/en
Priority to DE102012105115A priority patent/DE102012105115A1/en
Priority to CN201210195827.3A priority patent/CN103134357B/en
Publication of KR20130058432A publication Critical patent/KR20130058432A/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/08—Arrangements of lubricant coolers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/0031—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other
    • F28D9/0043—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another
    • F28D9/005—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another the plates having openings therein for both heat-exchange media
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/0093—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/02—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the heat-exchange media travelling at an angle to one another
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
    • F28F27/02—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus for controlling the distribution of heat-exchange media between different channels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/08—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning
    • F28F3/086—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning having one or more openings therein forming tubular heat-exchange passages
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/008—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for vehicles
    • F28D2021/0089—Oil coolers

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Details Of Gearings (AREA)

Abstract

A vehicle heat exchanger and a cooling system having the same are disclosed. Vehicle heat exchanger according to an embodiment of the present invention is a plurality of plates are stacked alternately to form different connection flow paths therein, different working fluids are introduced into each other through each connection flow path is made of mutual heat exchange, A heat dissipation unit configured to divide one of the connection flow paths so that each of the supplied working fluids is circulated separately; And interconnecting one of the inflow and outflow holes of the plurality of inflow and outflow holes formed to inflow and outflow the respective working fluids from the heat dissipation unit, and bypass the working fluids according to the flow rate of the inflowing working fluids. It includes a branch to make.

Description

Heat exchanger for vehicle and cooling system equipped with it {HEAT EXCHANGER FOR VEHICLE AND COOLING SYSTEM HAVING THE SAME}

The present invention relates to a vehicle heat exchanger and a cooling system having the same. More particularly, the present invention relates to a vehicle heat exchanger and a cooling system having a temperature controlled through mutual heat exchange.

Generally, a heat exchanger transfers heat from a high temperature fluid to a low temperature fluid through a heat transfer wall, and is used in a heater, a cooler, an evaporator, a condenser, and the like.

The heat exchanger reuses thermal energy or adjusts the temperature of the inflowing working fluid according to the use, and is usually applied to an air conditioning system or a transmission oil cooler of a vehicle and mounted in an engine room.

Here, when the heat exchanger is installed in an engine room having a limited space, it is difficult to secure and mount the space, and research for reducing the size, weight, and high efficiency of the heat exchanger has been continued.

However, such a conventional heat exchanger must supply the working fluid to the engine, the transmission, or the air conditioner of the vehicle by adjusting the temperature of the working fluid according to the state of the vehicle, but for this purpose, Since a separate branch circuit and a valve must be installed on the flow path, there is a problem in that the number of components and assembly work is increased and the layout is complicated.

In addition, when the separate branch circuit and the valve is not installed, there is a problem that it is impossible to control the heat exchange efficiency according to the flow rate of the working fluid, so that the effective temperature control of the working fluid is impossible.

Accordingly, embodiments of the present invention simultaneously operate the warm-up function and the cooling function of the working fluid by using the inflow flow rate of the working fluid according to the running state of the vehicle or the initial starting condition when the respective working fluids are controlled by mutual heat exchange therein. An object of the present invention is to provide a heat exchanger for a vehicle capable of adjusting the temperature of an introduced working fluid and a cooling system having the same.

In addition, by dividing the connecting flow path through which the working fluid flows, different working fluids can be introduced and circulated, and the temperature of these working fluids can be adjusted according to the state of the vehicle, thereby improving fuel efficiency and heating performance of the vehicle. To provide a vehicle heat exchanger and a cooling system having the same to simplify the configuration to reduce the assembly labor.

A vehicle heat exchanger according to an embodiment of the present invention for achieving this object is formed by alternately stacking a plurality of plates to form different connection flow paths therein, and different working fluids are introduced into each passing through the connection flow paths. A heat dissipation unit configured to mutually exchange heat, and one connection channel of each connection channel be partitioned so that each supplied working fluid is circulated separately; And interconnecting one of the inflow and outflow holes of the plurality of inflow and outflow holes formed to inflow and outflow the respective working fluids from the heat dissipation unit, and bypass the working fluids according to the flow rate of the inflowing working fluids. It includes a branch to make.

Each of the inflow holes includes first, second, and third inflow holes respectively formed on both sides of one surface in the longitudinal direction of the heat dissipation part, and each of the discharge holes is formed in the first, second, and third inflow holes. Correspondingly, the first, second, and third holes are formed to be spaced apart from the first, second, and third inlet holes on both sides in the length direction of the heat dissipation unit, and the first, second, and third interconnections are connected to each other in the heat dissipation unit. It may include a discharge hole.

The branch part may be formed to interconnect between the first inlet hole and the first outlet hole, and protrude to one surface of the heat dissipation unit.

The first inlet hole and the first outlet hole may be formed at each corner in a diagonal direction from one surface of the heat dissipation unit.

The second inlet hole and the second outlet hole are formed in a diagonal direction on one side where the first inlet hole is formed on the basis of a center partitioned from one surface of the heat dissipation unit, and are formed in the first inlet hole and the first outlet hole. It can be formed opposite.

The third inflow hole and the third discharge hole are formed in a diagonal direction on the other side where the first discharge hole is formed on the basis of the center partitioned from one surface of the heat dissipation unit, and the first inlet hole and the first discharge hole are mutually different. It can be formed opposite.

Each working fluid may be composed of coolant flowing from a radiator, transmission oil flowing from an automatic transmission, and engine oil flowing from an engine.

The cooling water is circulated through the first inlet hole and the first outlet hole, the transmission oil is circulated through the second inlet hole and the second outlet hole, and the engine oil is through the third inlet hole and the third outlet hole. Circulated, and each connection flow path is alternately formed with each of the first connection flow paths and the first connection flow paths through which the coolant flows through the first inflow hole in the heat dissipation portion, respectively, and is partitioned through the ribs. And a second connection passage through which the transmission oil flowing through the second inlet hole moves and a third connection passage through which the engine oil flowing through the third inlet hole moves.

The rib may be formed at the center of the heat dissipation unit based on a lengthwise direction of the transmission oil and the engine oil flowing through the second connection channel and the third connection channel.

The branching portion forms a separate bypass flow path to discharge the coolant flowing into the first inlet hole directly to the first outlet hole separately from the first connection channel at a position proximate to the first inlet hole and the first outlet hole. can do.

The heat dissipation unit may be heat exchanged by counterflow (flow) of each working fluid.

The heat dissipation unit may be formed in a plate shape in which a plurality of plates are stacked.

And a vehicle cooling system having a vehicle heat exchanger as described above is a heater through which the cooled coolant is connected to the engine through the cooling line and circulated while passing through the radiator through a water pump, the coolant passes through the thermostat and the cooling line In a vehicle cooling system including a core, a heat dissipation unit provided on the cooling line and in which at least one working fluid flows in and exchanges heat with the cooling water, and directly passes the cooling water introduced according to the flow rate of the cooling water without passing through the heat dissipation unit. It includes a heat exchanger consisting of a branch to pass through or discharge into the inside of the heat dissipation unit, wherein the heat dissipation unit is provided between the connection flow path through which the coolant is circulated, each forming a separate connection flow path partitioned each other, From the engine and the automatic transmission as working fluid The engine oil and transmission fluid flowing into each inlet is additionally connected to each channel of the heat exchanger and the cooling water can be mutually a rotational basis.

The engine and the automatic transmission may be connected to the heat dissipating unit through first and second oil lines, respectively.

According to the vehicle heat exchanger and the cooling system having the same according to an embodiment of the present invention as described above, when the respective working fluid is temperature controlled through mutual heat exchange therein, the working fluid according to the running state or initial starting conditions of the vehicle By using the inflow flow rate, it is possible to efficiently control the temperature of the introduced working fluid so as to simultaneously perform the warm-up function and the cooling function of the working fluid.

In addition, it is possible to adjust the temperature of the working fluid according to the state of the vehicle, it is possible to improve the fuel economy of the vehicle, and to improve the heating performance, it is possible to simplify the configuration to reduce the assembly labor.

In addition, by eliminating the branch circuit that is conventionally installed separately and integrally formed, it is possible to reduce manufacturing cost and improve workability, increase space utilization in a narrow engine room, and simplify the layout of the connection hoses.

In addition, among the working fluids that are subject to heat exchange, when the automatic transmission oil is included, it is possible to simultaneously perform a warm-up function for reducing friction during cold start and a cooling function for preventing slip and driving durability while driving, thereby improving fuel economy and transmission durability. Can be.

In addition, it is possible to warm up or cool the automatic transmission oil and engine oil by water cooling using cooling water, thereby improving heat exchange efficiency compared to an air-cooled heat exchanger, thereby improving the overall cooling performance and heating performance of the vehicle cooling system.

In addition, the two working fluids can be mutually heat exchanged with the cooling water through one heat exchanger through which the cooling water is introduced, thereby simplifying the overall package of the cooling system.

1 is a configuration diagram of a cooling system to which a vehicle heat exchanger according to an embodiment of the present invention is applied.
2 is a perspective view of a vehicle heat exchanger according to an embodiment of the present invention.
3 is a sectional view taken along the line AA in Fig.
4 is a cross-sectional view taken along line BB of FIG. 2.
5 and 6 are views showing the flow direction of each working fluid applied to the vehicle heat exchanger according to an embodiment of the present invention.

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

It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory only and are not restrictive of the invention, It should be understood that various equivalents and modifications may be present.

1 is a configuration diagram of a cooling system to which a vehicle heat exchanger according to an embodiment of the present invention is applied.

Referring to the drawings, the vehicle heat exchanger 100 and the cooling system 10 having the same according to an exemplary embodiment of the present invention, when the respective operating fluids control the temperature through mutual heat exchange therein, According to the initial starting condition, the flow rate of the working fluid is controlled so that the warming-up function and the cooling function of the working fluid can be simultaneously performed using the inflow flow rate of the working fluid.

To this end, the cooling system 10 is applied to the vehicle heat exchanger 100 according to an embodiment of the present invention, as shown in Figure 1, basically, the cooling fan 13 through the water pump 11 A cooling line (hereinafter referred to as "C.L") is provided to cool the engine 17 while the coolant cooled while passing through the mounted radiator 15, and a vehicle not shown on the cooling line CL is provided. And a heater core 19 connected to the heating system.

Here, the vehicle cooling system 10 according to the embodiment of the present invention includes a heat dissipation unit 110 and the branch portion 120, the heat exchanger (11) provided between the water pump 11 and the heater core (19) 100).

Here, the heat dissipation unit 110 is provided on the cooling line (C.L), at least one working fluid is introduced to exchange heat with the cooling water.

The heat dissipation unit 110 is provided between the connection flow passages 113 through which the coolant is circulated, and forms separate connection flow passages 113, which are partitioned from each other.

In the heat dissipation unit 110 configured as described above, the engine oil and the transmission oil respectively introduced from the engine 17 and the automatic transmission 21 as the working fluid are introduced into each of the separate connection passages 113 and circulated with the coolant. Heat exchange.

The branch portion 120 bypasses the cooling water introduced according to the flow rate of the cooling water immediately without passing through the heat dissipation part 110 or flows into the heat dissipation part 110.

On the other hand, the detailed configuration and operation of the heat exchanger 100 applied to the cooling system 10 in the embodiment of the present invention will be described in more detail below.

In addition, the engine 17 and the automatic transmission 21 are oil lines in which the heat dissipation unit 110 and oil flow (Oil Line, hereinafter referred to as 'O.L'). Interconnected via .L1, O.L2).

That is, in this embodiment, each of the working fluid is composed of the coolant flowing from the radiator 15, the transmission oil flowing from the automatic transmission 21, the engine oil flowing from the engine 17, the heat exchanger Through 100, the transmission oil and the engine oil are mutually heat exchanged with the cooling water to adjust the temperature of the transmission oil and the engine oil.

The heat exchanger 100 includes a heat dissipation unit 110 and a branch unit 120 as described above, which will be described in more detail with reference to FIGS. 2 to 6 as follows.

Figure 2 is a perspective view of a vehicle heat exchanger according to an embodiment of the present invention, Figure 3 is a cross-sectional view taken along line AA of Figure 2, Figure 4 is a cross-sectional view taken along line BB of Figure 2, Figures 5 and 6 A diagram illustrating a flow direction of each working fluid applied to a vehicle heat exchanger according to an embodiment of the present invention.

First, the heat dissipation unit 110 is formed by stacking a plurality of plates 111 and alternately forming different connection flow passages 113 therein.

Different working fluids are introduced into each of the connection flow passages 113 to exchange heat with each other while passing through the connection flow passages, and one of the connection flow passages 113 of each of the connection flow passages 113 supplies each of the supplied working fluids. Are each partitioned to circulate separately.

Here, the heat dissipation unit 110 is a counterflow (counter flow) of the flow of each working fluid is to be exchanged with each other.

The heat dissipation unit 110 configured as described above may be formed in a plate shape (or also referred to as a “plate shape”) in which a plurality of plates 111 are stacked.

In addition, the branch part 120 is discharged from any one of the inlet hole 115 and the outlet hole 115 and the outlet hole 117 formed to inlet and discharge each working fluid in the heat dissipation unit 110, respectively. The holes 117 are interconnected.

This branch 121 bypasses the working fluid in accordance with the flow rate of the working fluid introduced.

In this embodiment, each of the inlet holes 115 is composed of first, second, third inlet holes (115a, 115b, 115c) formed on both sides of one surface in the longitudinal direction of the heat dissipation unit (110).

Each of the discharge holes 117 corresponds to the first, second, and third inlet holes 115a, 115b, and 115c in the longitudinal direction of the heat dissipation unit 110, respectively. And first, second, and third discharge holes formed to be spaced apart from the third inflow holes 115a, 115b, and 115c, respectively, and connected to each other through the connection passages 113 in the heat dissipation unit 110. 117a, 117b, and 117c.

Here, the first inlet hole 115a and the first outlet hole 117a are formed at each corner portion in a diagonal direction from one surface of the heat dissipation unit 110.

In the present embodiment, the second inlet hole 115b and the second outlet hole 117b are formed at one side of the first inlet hole 115a based on a center partitioned from one surface of the heat dissipation unit 110. It is formed in a diagonal direction and is formed to face each other in the first inlet hole (115a) and the first outlet hole (117a).

The third inflow hole 115c and the third discharge hole 117c are formed in a diagonal direction on the other side where the first discharge hole 117a is formed based on a center partitioned from one surface of the heat dissipation unit 110. The first inlet hole 115a and the first outlet hole 117a are formed to face each other.

The branch portion 120 interconnects between the first inflow hole 115a and the first discharge hole 117a and is formed to protrude to one surface of the heat dissipation part 110.

In this embodiment, the coolant is circulated through the first inlet hole 115a and the first outlet hole 117a, and the transmission oil is circulated through the second inlet hole 115b and the second outlet hole 117b. The engine oil is circulated through the third inlet hole 115c and the third outlet hole 117c.

Meanwhile, connection ports 130 are respectively installed in the first, second and third inlet holes 115a, 115b and 115c and the first, second and third discharge holes 117a, 117b and 117c, respectively. It may be connected to the radiator 15, the automatic transmission 21, and the engine 17 through a connection hose or a connection pipe to the connection port 130.

In this embodiment, each of the connection passages 113 is divided into first, second, and third connection passages 113a, 113b, and 113c, which will be described in more detail below.

First, the first connection flow passage 113a moves through the coolant through the first inlet hole 115a in the heat dissipation unit 110.

The second connection passage 113b and the third connection passage 113c are alternately formed with the first connection passage 113a and partitioned through the ribs 140.

Here, the rib 140 is based on the longitudinal direction of the heat dissipation unit 110 to prevent the transmission oil and the engine oil flowing through the second connection passage 113b and the third connection passage 113c. It is formed in the center.

That is, the ribs 140 are formed in the center of the length direction of each plate 111 to be stacked, and the second and third connection passages are formed with the first connection channel 113a interposed therebetween. It divides into (113b, 113c).

Accordingly, the transmission oil flowing through the second inflow hole 115b moves in the second connection flow passage 113b, and the third inflow passage 113c moves through the third inflow hole 115c. Inflowing engine oil is moved.

The branch part 120 is a coolant introduced into the first inlet hole 115a separately from the first connection passage 113a at a position close to the first inlet hole 115a and the first outlet hole 117b. A separate bypass flow passage 121 is formed to immediately discharge the gas to the first discharge hole 117a.

Here, the bypass passage 121 does not flow into the first connection passage 113a of the heat dissipation unit 110 when the flow rate of the cooling water is small when the cooling water flows through the first inflow hole 115a. Instead, the first discharge hole 117a is discharged directly.

The bypass passage 121, as shown in (S1) of Figure 5, when the transmission oil warm-up according to the state or mode of the vehicle, such as the driving state, the idle mode, or the initial start-up of the vehicle, the cooling water to the first By bypassing the inflow passage 113a, the engine oil and the transmission oil flowing through the second and third connection passages 113b and 113c are prevented from decreasing in temperature through heat exchange with the cooling water. .

On the contrary, when the flow rate of the cooling water is large, the cooling water is introduced into the first connection passage 113a together with the bypass passage 121 as shown in FIG. 5 (S2).

Accordingly, the coolant passing through the first connection passage 113a flows in from the automatic transmission 21 and the engine 17 through the second inflow hole 115b and the third inflow hole 115c, respectively. The engine oil and the transmission oil passing through the third connection passages 113b and 113c are respectively heat-exchanged inside the heat dissipation unit 110.

Here, the transmission oil and the engine oil, respectively, as shown in Figure 6, is introduced through the second inlet hole (115b) and the third inlet hole (115c), the rib inside the heat dissipation unit (110) ( After passing through the second and third connection passages 113b and 113c respectively formed by partitioning through 140, the automatic transmission 21 is discharged through the second discharge hole 117b and the third discharge hole 117c, respectively. And to the engine 17.

Accordingly, when the vehicle runs, the engine oil whose temperature is increased by the operation of the engine 17 and the transmission oil that is heated by the fluid friction generated by the operation of the torque converter and require cooling are cooled by the heat dissipation unit 110. It is supplied to the engine 17 and the automatic transmission 21 in a cooled state through mutual heat exchange with.

That is, the heat exchanger 100 supplies the cooled engine oil and the transmission oil to the automatic transmission 21 which is rotated at high speed with the engine 17 when the vehicle runs, thereby knocking and knocking the engine 17. This prevents rancidity and prevents slippage of the automatic transmission 21.

On the contrary, when the vehicle is initially started or idled, the flow rate of the coolant flowing into the heat exchanger 100 is small, so that the coolant is bypassed to the bypass passage 121 of the branch 120 so that the engine oil and the transmission oil The heat exchange is small, so warm-up is possible, and heating performance can be improved.

In addition, after the vehicle is started, during the high speed driving, the temperature of the engine oil and the transmission oil is increased by heat exchange in the heat dissipation unit 110 with coolant having a rapid temperature rise and then supplied to the engine 17 and the automatic transmission 21. By doing so, it is possible to reduce the frictional loss in the engine 17 and the automatic transmission 21 to increase fuel economy.

Therefore, according to the vehicle heat exchanger 100 and the cooling system having the same according to an embodiment of the present invention configured as described above, when the respective operating fluids control the temperature through mutual heat exchange therein, It is possible to efficiently control the temperature of the introduced working fluid to perform the warm-up function and the cooling function of the working fluid at the same time by using the inflow flow rate of the working fluid according to the driving condition or the initial starting condition.

In addition, it is possible to adjust the temperature of the working fluid according to the state of the vehicle, it is possible to improve the fuel economy of the vehicle, and to improve the heating performance, it is possible to simplify the configuration to reduce the assembly labor.

In addition, by removing the branch circuit that is conventionally installed separately and forming the branch unit 120 integrally, it is possible to reduce the production cost and workability, to increase the space utilization in the narrow engine room, layout of the connection hose Can be simplified.

In addition, when transmission oil is included among the working fluids that are subject to heat exchange, it is possible to simultaneously perform a warm-up function for reducing friction during cold start and a cooling function for preventing slippage and durability while driving, thereby improving fuel economy and transmission durability. have.

In addition, the transmission oil and engine oil can be warmed up or cooled by water cooling using cooling water as a cooling medium, thereby improving heat exchange efficiency compared to an air-cooled heat exchanger, thereby improving overall cooling performance and heating performance of the vehicle cooling system.

On the other hand, in the description of the vehicle heat exchanger 100 according to an embodiment of the present invention, each working fluid is described as an embodiment consisting of a coolant and a transmission oil, but is not limited to this, cooling or by heat exchange It can be applied to all working fluids requiring temperature rise.

And in the present invention to describe a vehicle heat exchanger according to an embodiment, it has been described as an embodiment that the plurality of plates 111 are simply stacked on the drawings, but is not limited thereto, the heat exchanger 100 of In consideration of the mounting, a cover, a bracket, etc. may be installed on one side and the other side to prevent breakage due to contact with other components or to fix the other components or the inside of the engine room.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It will be understood that various modifications and changes may be made without departing from the scope of the appended claims.

10 cooling system 11: water pump
13: cooling fan 15: radiator
17: engine 19: heater core
21: automatic transmission 100: heat exchanger
110: heat radiating portion 111: plate
113: connection passage 113a, 113b, 113c: first, second, third connection passage
115: inflow hole 115a, 115b, 115c: first, second, third inflow hole
117: discharge hole 117a, 117b, 117c: first, second, third discharge hole
120: branch portion 121: bypass flow path
130: connection port 140: rib

Claims (14)

A plurality of plates are stacked to alternately form different connection flow paths inside each other, and different working fluids are introduced to each other to pass through the connection flow paths, thereby mutually exchanging heat, and one of the connection flow paths A heat dissipation unit partitioned so that each supplied working fluid is circulated separately; And
Interconnecting any one of the inlet and outlet holes of the plurality of inlet and outlet holes formed to inlet and discharge each working fluid in the heat dissipation unit, and bypassing the working fluid in accordance with the flow rate of the working fluid Branch;
Vehicle heat exchanger comprising a. The method of claim 1,
Each of the inflow holes includes first, second, and third inflow holes respectively formed on both sides of one surface in the longitudinal direction of the heat dissipation part.
Each of the discharge holes may be formed to be spaced apart from the first, second, and third inlet holes on both sides of the heat dissipation part in a lengthwise direction corresponding to the first, second, and third inlet holes. A vehicle heat exchanger including first, second and third discharge holes interconnecting respective connection flow paths therein. The method of claim 2,
The branch portion
A vehicle heat exchanger connected between the first inlet hole and the first outlet hole and protruding from one surface of the heat dissipation unit. The method of claim 2,
The first inlet hole and the first outlet hole
Vehicle heat exchanger is formed in each corner portion in a diagonal direction from one surface of the heat radiating portion. The method of claim 2,
The second inlet hole and the second outlet hole
The vehicle heat exchanger is formed in a diagonal direction on one side where the first inlet hole is formed based on a center partitioned from one surface of the heat dissipation unit, and is formed to face the first inlet hole and the first outlet hole. The method of claim 2,
The third inlet hole and the third outlet hole
The vehicle heat exchanger is formed in a diagonal direction on the other side where the first discharge hole is formed based on a center partitioned from one surface of the heat dissipation unit, and is formed to face the first inlet hole and the first discharge hole. The method of claim 2,
Each of the working fluids
A vehicle heat exchanger comprising coolant flowing from a radiator, transmission oil flowing from an automatic transmission, and engine oil flowing from an engine. The method of claim 7, wherein
The cooling water is circulated through the first inlet hole and the first outlet hole, the transmission oil is circulated through the second inlet hole and the second outlet hole, and the engine oil is through the third inlet hole and the third outlet hole. Circulated,
Each connection channel
A first connection flow path through which the coolant flows through the first inflow hole and moves through the first inflow hole, and alternately formed with each of the first connection flow paths, is partitioned through a rib, and flows in through the second inflow hole. And a second connection passage through which the transmission oil moves and a third connection passage through which the engine oil flowing through the third inlet hole moves. 9. The method of claim 8,
The rib
And a transmission oil and an engine oil flowing through the second connection channel and the third connection channel are formed at the center of the heat dissipation unit in the center of the heat dissipation unit. 9. The method of claim 8,
The branch portion
A vehicle heat exchanger for forming a separate bypass flow path to discharge the coolant flowing into the first inflow hole directly to the first discharge hole separately from the first connection channel at a position close to the first inflow hole and the first discharge hole. group. The method of claim 1,
The heat-
A vehicle heat exchanger in which the flow of each working fluid is exchanged by counterflow. The method of claim 1,
The heat-
A vehicle heat exchanger formed in a plate shape in which a plurality of plates are stacked. In a vehicle cooling system including a heater core through which a cooling water cooled while passing through a radiator through a water pump is connected to the engine through a cooling line and circulated, and a cooling water passes through a thermostat and the cooling line.
The heat dissipation unit provided on the cooling line and at least one working fluid is introduced to exchange heat with the cooling water, and the cooling water introduced according to the flow rate of the cooling water is bypassed immediately without passing through the heat dissipation unit or discharged into the heat dissipation unit. Including a heat exchanger consisting of a branch to make,
The heat dissipation unit is provided between the connection passages through which the coolant is circulated and forms separate connection passages, which are partitioned from each other.
And an engine oil and a transmission oil respectively introduced from the engine and the automatic transmission as the working fluid are respectively circulated and circulated with the cooling water while being circulated through the respective connecting flow paths. The method of claim 13,
The engine and the automatic transmission
Cooling system for a vehicle that is connected to each of the heat dissipation portion through the first and second oil lines.
KR1020110124434A 2011-11-25 2011-11-25 Heat exchanger for vehicle and cooling system having the same KR20130058432A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
KR1020110124434A KR20130058432A (en) 2011-11-25 2011-11-25 Heat exchanger for vehicle and cooling system having the same
US13/490,881 US20130133875A1 (en) 2011-11-25 2012-06-07 Heat exchanger for vehicle
JP2012131952A JP2013113579A (en) 2011-11-25 2012-06-11 Vehicle heat exchanger
DE102012105115A DE102012105115A1 (en) 2011-11-25 2012-06-13 Heat exchanger for a vehicle
CN201210195827.3A CN103134357B (en) 2011-11-25 2012-06-14 Heat exchanger for vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020110124434A KR20130058432A (en) 2011-11-25 2011-11-25 Heat exchanger for vehicle and cooling system having the same

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101461893B1 (en) * 2013-06-05 2014-11-13 현대자동차 주식회사 Cooling system for vehicle
KR20150136244A (en) * 2014-05-27 2015-12-07 현대자동차주식회사 Sturucture for discharging air bubble of exhaust heat recovery device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101461893B1 (en) * 2013-06-05 2014-11-13 현대자동차 주식회사 Cooling system for vehicle
KR20150136244A (en) * 2014-05-27 2015-12-07 현대자동차주식회사 Sturucture for discharging air bubble of exhaust heat recovery device

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