KR20120056736A

KR20120056736A - Multi-cooling module for vehicle

Info

Publication number: KR20120056736A
Application number: KR1020100118413A
Authority: KR
Inventors: 백승진
Original assignee: 현대자동차주식회사
Priority date: 2010-11-25
Filing date: 2010-11-25
Publication date: 2012-06-04
Also published as: KR101240982B1

Abstract

PURPOSE: A multi-cooling device for vehicles is provided to form one cooling core structure by cooling an engine, a condenser, and an electric field using more than one heat pipe at the same time. CONSTITUTION: A multi-cooling device for vehicles comprises more than one heat pipe(140). The heat pipe is penetrated through at least two coolant flow pipes passing through a same cooling core unit(100). The coolant flow pipe comprises an engine coolant pipe(110), an electric field coolant pipe(120), a condenser coolant pipe(130). The coolant flow pipe is laminated from an upper part to a lower part in order of high temperature heat sources.

Description

Multi-cooling module for vehicle

The present invention relates to a multi-cooling device for a vehicle, and more particularly, to a multi-cooling device for cooling the engine, the electric field, and the condenser simultaneously through one or more heat pipes.

In general, hybrid vehicles generate not only a greater amount of heat than internal combustion engine vehicles, but also require a very high level of cooling specifications to maintain the durability of electric components including motors.

To this end, a conventional hybrid vehicle cooling device includes a condenser, a full-length radiator, an engine radiator, a cooling fan, and the like, and in particular, a full-length radiator that is responsible for cooling the electrical components (driving motors, etc.) is combined with a condenser rather than an engine radiator. Placed in front.

Referring to Figure 1 attached to the arrangement for each configuration of the cooling device, among the components of the cooling device 10, the electric field radiator 12 is disposed in front of the front of the vehicle, the predetermined along the following Maintaining the distance of the condenser 14 and the engine radiator 16 are arranged in sequence, the rearmost cooling fan 18 for the cooling air intake is arranged.

The electric field radiator 12 and the condenser 14 perform an independent cooling operation. The condenser 14 forms a refrigeration system together with a compressor and an evaporator to perform a cooling function for a vehicle interior, and the electric field radiator 12 In addition to the motor for driving the vehicle serves to cool the coolant that is heat exchanged from the junction box, various batteries and the controller.

Of course, the engine radiator 16 independently serves to cool the engine coolant.

However, such a conventional cooling apparatus requires a cooling system core part for each of the condenser 14 and the engine radiator 16, including the electric field radiator 12, and therefore, a space package in a limited installation space is disadvantageous, and also cost is reduced. And weight increase.

The present invention has been made to solve the above problems, and in order to simultaneously cool each refrigerant (coolant) of the engine, the electric field, and the condenser through one or more heat pipes, heat exchange between the refrigerant and the working fluid of the heat pipe is performed. An object of the present invention is to provide a multi-vehicle cooling apparatus for a vehicle capable of satisfying the reference cooling temperature of each refrigerant by appropriately adjusting the pipe thickness of the section.

In order to achieve the above object, the present invention provides a multi-vehicle cooling apparatus for a vehicle, characterized in that one or more heat pipes are mounted to pass through at least two or more refrigerant flow path pipes via the same cooling system core part.

The refrigerant flow path pipe includes an engine refrigerant path pipe, an electric field refrigerant path pipe, and a condenser refrigerant path pipe.

Preferably, the refrigerant flow path pipe is characterized in that arranged in order from the top to the bottom in order of high temperature heat source.

The refrigerant flow path pipes have different refrigerants.

Also preferably, when the outer surface temperature of the heat pipe is the reference cooling temperature of each refrigerant, the inner surface temperature of the heat pipe is characterized in that the evaporation temperature of the working fluid of the heat pipe.

More preferably, the heat pipe is characterized in that configured to have a different pipe thickness in the section where the heat exchange of the refrigerant is made when passing through each refrigerant path pipe.

More preferably, when the heat pipes are arranged in plural numbers, the heat pipes are installed as heat pipes having pipes having different thicknesses at inlets and outlets of each refrigerant passage pipe.

According to the present invention, the engine, the electric field, and the condenser can be simultaneously cooled by one or more heat pipes, so that it is possible to reduce the configuration to one cooling system core part, thereby improving the space package in the limited installation space, which is advantageous. Cost and weight can be reduced.

1 is a layout view of a conventional hybrid vehicle cooling apparatus
2 is a conceptual diagram illustrating a heat exchange principle of a general heat pipe.
3 is a schematic view showing a vehicle multi-cooling device according to an embodiment of the present invention
4 is an exemplary view showing an operating state of a multi-vehicle cooling apparatus for a vehicle according to an embodiment of the present invention.

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

First, briefly look at the structure and heat exchange principle of the heat pipe with reference to Figure 2 in order to help the understanding of the present invention, the heat pipe generally contains a material called a heat medium or a working fluid, water, mercury, methanol, acetone, etc. This belongs to this.

The heat pipe generally used generally takes the form of a pipe, and the working fluid or the like is contained in a pipe provided as a case, and the inside of the pipe is in a vacuum state.

These heat pipes have a low boiling liquid working fluid in the vacuum pipe, which is heated and heated in the evaporator, moves and releases heat in the condenser, and heats convection in the radiator to cool the liquid. Then, the cooling of the corresponding parts is performed by the cycle returned to the evaporator.

The heat pipe operated on this principle may be installed as a cooler in a high heat generating electronic component such as a CPU of a high performance computer, or may be installed as a heat exchanger that absorbs heat from a refrigerator or an air conditioner.

The present invention simultaneously cools the refrigerant (coolant) of the engine refrigerant path pipe 110, the electric field refrigerant path pipe 120, and the condenser refrigerant path pipe 130 through one or more heat pipes 140 having the above principle. To help.

To this end, the multi-cooling apparatus according to an embodiment of the present invention, as shown in Figure 3, arranged in parallel in three rows engine coolant flow path pipe 110 connected to the same cooling system core portion 100, the electric field refrigerant A plurality of heat pipes 140 simultaneously passing through the flow path pipe 120 and the condenser refrigerant flow path pipe 130 are provided.

In other words, as shown in FIG. 3, the heat pipe 140 includes an engine refrigerant path pipe 110, an electric field refrigerant path pipe 120, and a capacitor refrigerant arranged side by side in the cooling system core part 100, or the heat sink fin core. It is mounted in a structure that crosses through the flow path pipe 130 at the same time, it is possible to cool the refrigerant flowing in the interior of the refrigerant flow path pipe (110, 120, 130) passing through the outer surface of the heat pipe (140).

In the conventional case, the vehicle refrigerant path pipe 110, the electric field refrigerant path pipe 120, and the capacitor refrigerant path were arranged in the order of the electric field radiator, the condenser, and the engine radiator. The pipe 130 is arranged up and down in order.

In particular, in consideration of the change in the state of the working fluid due to heat exchange of the heat pipe 140, the condenser refrigerant flow path pipe 130 having the lowest reference cooling temperature of the refrigerant is positioned under the heat pipe 140, and the electric field refrigerant thereon. The flow path pipe 120 and the engine refrigerant flow path pipe 110 are arranged in a vertically stacked structure, such a structure is connected to the same cooling system core portion 100 supporting them.

Of course, the cooling system core unit 100 is a structure capable of entering and exiting the outside air, and having a plurality of heat dissipation fins to maximize the heat transfer effect by the heat pipe 140.

For example, the heat pipe 140 and the refrigerant flow path pipes 110, 120, and 130 are configured to pass through the cooling system core part 100, and thus, the heat dissipation fins of the cooling system core part 100 may be heat pipes. 140 and the refrigerant flow path pipes 110, 120, and 130.

In the cooling system core unit 100, the heat pipe 140 is composed of at least one, and it is preferable that the heat pipe 140 is configured in plural in order to increase the heat exchange performance. .

The heat pipes 140 respectively cool the engine refrigerant flow path pipes 110 and the refrigerant refrigerant flow path pipes 120 and the condenser refrigerant flow path pipes 130 having different reference cooling temperatures. The pipe thickness d in the section where heat exchange with the refrigerant of the 110, the electric field refrigerant path pipe 120, and the capacitor refrigerant path pipe 130 is performed is appropriately changed and adjusted.

That is, since the evaporation temperature (for example, 55 ° C.) of the working fluid that performs heat exchange through the state change as the heat medium in the pipe 142 of the heat pipe 140 is constant, the refrigerant flow path pipes requiring different reference cooling temperatures. When the temperature of the outer surface of the heat pipe 140 becomes the reference cooling temperature of each refrigerant to satisfy each of the refrigerants 110, 120, and 130, the temperature of the inner surface of the heat pipe 140 is the evaporation temperature of the working fluid of the heat pipe 140. Adopt pipe thickness (d) to achieve (boiling point).

In the multi-cooling apparatus of the present invention, for example, the condenser refrigerant flow path pipe 130 is disposed at an evaporation part of the heat pipe 140, and the electric field refrigerant flow path pipe 120 and the engine refrigerant flow path pipe 110 are sequentially disposed thereon. The heat condenser is disposed in the heat dissipation part, and the condensation part of the heat pipe 140 is exposed to the outside air or is connected to the cooling system core part 100.

In addition, when a plurality of heat pipes 140 are arranged in the cooling system core part 100, pipes 142 having different thicknesses at inlets and outlets through which refrigerant of each of the refrigerant flow path pipes 110, 120, and 130 flows in and out. It is desirable to install a heat pipe 140 with

For example, considering that each refrigerant flows along the respective refrigerant flow path pipes 110, 120, and 130, and the temperature state is changed by heat exchange, the heat flow path 140 disposed at the inlet portion of the refrigerant flow path pipes 110, 120, and 130 is a refrigerant flow path. The heat pipe 140 may have a thicker pipe 142 than the heat pipe 140 disposed at the outlet portions of the pipes 110, 120, and 130.

Hereinafter, in order to explain the operating state of the multi-cooling apparatus according to an embodiment of the present invention, the required reference cooling temperatures of the engine refrigerant, the electric field refrigerant, and the condenser refrigerant are assumed to be 100 ° C, 80 ° C, and 55 ° C, respectively.

As mentioned, assuming that the evaporation temperature of the heat pipe 140 working fluid is 55 ° C., first, the working fluid is 55 ° C. in the evaporation part of the heat pipe 140 and the temperature of the condenser refrigerant is 55 ° C. or more. At this time, the condenser refrigerant is reduced in temperature by heat exchange and the working fluid is vaporized to evaporate.

In the case of the refrigerant of the electric field refrigerant path pipe 120, when the temperature is 80 ° C. or more, the electric field refrigerant is reduced by heat exchange and the working fluid is also evaporated and evaporated.

At this time, the working fluid evaporated in the heat pipe 140 is raised through the center portion of the pipe 142 and the liquefied working fluid is lowered along the inner surface side of the pipe 142 to return to the evaporation unit. Some of the working fluid is evaporated and evaporated by heat exchange with the electric field refrigerant path pipe 120 again, and some remain in a liquid state and eventually flow to the evaporator.

Therefore, since the working fluid flowing on the inner surface side of the heat pipe 140 in the section in which the pipe thickness d is increased is in a liquid state of 55 ° C., heat exchange with the electric field refrigerant is achieved.

When the refrigerant in the engine refrigerant flow path pipe 110 disposed on the electric refrigerant flow path pipe 120 has a temperature of 100 ° C. or more, the engine refrigerant is reduced in temperature by heat exchange and the working fluid is vaporized to move upward to the condenser side. do.

This vaporized upflow working fluid (gas state at a temperature of 55 ° C.) is exposed to outside air at less than 55 ° C. in the condensate, cooled and liquefied, and eventually returns to the evaporation part.

For the above operation, in the multi-cooling apparatus of the present invention, the engine refrigerant path pipe 110, the electric field refrigerant path pipe 120, and the condenser refrigerant path pipe 130 are driven according to the elevation of the reference cooling temperature of each refrigerant. Arranged so as to be stacked up and down on the front side, the condenser refrigerant flow path pipe 130, the electric field refrigerant flow path pipe 120, and the engine refrigerant flow path pipe (from the evaporation part (lower part of FIG. 3) of the heat pipe 140 to the heat dissipation part) 110), the condensation part (the upper part of FIG. 3) of the heat pipe 140 may be exposed to the outside air to cool the upwardly flowed working fluid.

On the other hand, referring to Figure 4 looks at the heat exchange process when the refrigerant of the heat exchanger (for example engine radiator) is out of the reference cooling temperature.

In the heat pipe 140 of the present invention, when the outer surface temperature of the heat pipe 140 is a reference cooling temperature in a heat exchange section with the engine refrigerant flow path pipe 110, the inner surface (contact surface to which the working fluid is in contact) temperature is a working fluid. Since the pipe thickness (d) which becomes 55 degreeC which is evaporation temperature of is adopted, when the temperature of an engine refrigerant | coolant is 100 degreeC which is a reference cooling temperature, the inner surface temperature of the heat pipe 140 as shown in FIG. The engine coolant maintains its temperature state at 55 ° C. equal to the temperature of the working fluid in the liquid state.

When the engine cooling is insufficient, as shown in FIG. 4B, the temperature of the engine refrigerant exceeds 100 ° C. such that the inner surface temperature of the heat pipe 140 exceeds 55 ° C., the temperature of the working fluid. As a result, the engine refrigerant is reduced in temperature by heat exchange and the working fluid is vaporized.

In addition, when the engine cooling is excessively performed, as shown in FIG. 4C, the temperature of the engine refrigerant becomes less than 100 ° C. such that the inner surface temperature of the heat pipe 140 does not reach 55 ° C., which is the temperature of the working fluid. Therefore, the heat exchanger heats up the engine refrigerant and reduces the working fluid.

Such a multi-vehicle cooling apparatus for a vehicle of the present invention can simultaneously cool an engine refrigerant, an electric field refrigerant, and a condenser refrigerant with one or more heat pipes 140, and thus can be reduced to one cooling system core part 100. The space package is improved and advantageous within the limited installation space.

Therefore, an increase in the opening area for the cooling performance of the vehicle is prevented, so design freedom is improved, and an increase in the cooling specification is prevented, so that cost and weight can be reduced.

In addition, the cooling fan specification is also prevented from increasing, it is possible to obtain the effect of improving the charge and discharge performance.

In addition, the multi-cooling apparatus according to the present invention can be applied to not only a hybrid vehicle but also various types of vehicles having three or more heat exchangers, for example, as shown in Table 1.

100: cooling system core
110: engine refrigerant euro pipe
120: electric field refrigerant path pipe
130: condenser refrigerant path pipe
140: heat pipe
142: pipe

Claims

And at least one heat pipe adapted to pass through at least two refrigerant flow path pipes through the same cooling system core part.

The method according to claim 1,
The refrigerant flow path pipe is a vehicle multi-cooling device, characterized in that consisting of the engine refrigerant path pipe, electric field refrigerant path pipe, condenser refrigerant path pipe.

The method according to claim 2,
The refrigerant path pipe is a multi-cooling device for a vehicle, characterized in that arranged in order from the top to the bottom in order of high temperature heat source.

The method according to claim 2 or 3,
The refrigerant path pipe is a vehicle multi-cooling device, characterized in that each having a different refrigerant.

The method according to claim 1,
And when the outer surface temperature of the heat pipe is the reference cooling temperature of each refrigerant, the inner surface temperature of the heat pipe is an evaporation temperature of the working fluid of the heat pipe.

The method according to claim 1 or 5,
The heat pipe is a vehicle multi-cooling device, characterized in that configured to have a different pipe thickness in the section where the heat exchange of the refrigerant is made through the refrigerant flow path pipe.

The method according to claim 1,
When the heat pipes are arranged in plural, multi-cooling device for a vehicle, characterized in that installed in the heat pipe having a pipe having a different thickness at the inlet and outlet of each refrigerant path pipe.