KR20190110695A - Converter cooling system and automobile having the same - Google Patents

Abstract

The present invention relates to a converter cooling device which is to cool heat of a converter for supplying power of a battery or a generator as power of a power source, and to a manufacturing method thereof, and a vehicle having the same. The converter cooling device has a vehicle cooling pipe buried and installed in a cooling plate to have an upper portion thereof to be exposed, and a converter installed in the cooling plate to allow a cooling fluid to flow through a cooling pipe so as to cool the converter. According to the converter cooling device, a thermal conductive member is installed between the cooling pipe and the converter to conduct heat of the converter to the cooling pipe, or a cooling chamber is installed on a flow path of the cooling pipe to conduct heat of the converter to a cooling fluid through a cooling chamber upper cover. Accordingly, the cooling plate is made of a lightweight resin material to reduce the total weight and to improve cooling efficiency by the thermal conductive member or the cooling chamber.

Description

Converter cooling system and automobile having the same

The present invention relates to a converter cooling apparatus and a vehicle having the same, and more particularly, inserting or installing a heat conduction member between a cooling pipe embedded in a cooling plate and a converter, or inserting a cooling chamber to improve thermal conductivity to provide a cooling effect. To increase the cooling plate and the chamber body made of a lightweight resin material to reduce the overall weight relates to a converter cooling device and a vehicle having the same.

In general, a hybrid system of a vehicle may be composed of a combination of an electric motor and an internal combustion engine, such as a gasoline engine and a diesel engine. Such a vehicle can be equipped with an electric device such as a secondary battery, an inverter, a DC / DC converter, or the like for driving an electric motor for driving. Here, the secondary battery is discharged and charged by a chemical reaction, and the secondary battery must be cooled because the chemical reaction reacts with the exotherm.

In addition, inverters and converters must be cooled because their power elements generate heat. In particular, the DC / DC converter is an electronic device referred to as a power control unit, and may be integrally mounted on an engine room of a vehicle or the like.

However, since the converter generates a lot of heat itself, the cooling device is modularized to cool the heat of the converter.

The cooling device of the air-cooled converter includes a cooling fan and a cooling motor, and a cooling fan and a fan motor are installed outside the housing of the converter, and when the temperature of the converter increases, the cooling fan can be operated to prevent overheating of the converter. .

However, in the cooling device of such an air-cooled converter, since the cooling fan and the cooling motor are exposed to the outside of the housing of the converter, when the fan motor is submerged and leaked, the cooling device is broken. In addition, even when water is frozen inside the cooling fan, the fan motor frequently causes a failure.

In view of the above problems, a cooling converter for cooling a vehicle converter and a fan motor are separately disposed and a vehicle converter cooling apparatus capable of protecting a fan motor from flooding and leakage is disclosed in Korean Patent Publication No. 10-1516911. .

However, the above-described prior art uses the cooling fan to cool the internal parts, but because of the air-cooled structure, the cooling efficiency is largely affected by the ambient temperature.

On the other hand, the water-cooled cooling device is a system in which a cooling channel through which a normal cooling fluid flows is installed in a cooling plate, and a converter is installed on the cooling plate to cool the converter. The heat source of the converter is conducted to the cooling plate, the heat of the cooling plate is conducted to the cooling fluid of the cooling channel to heat exchange. Therefore, the cooling plate must be made of a material with good thermal conductivity to improve the cooling efficiency.

However, when the cooling plate is made of a metal having good thermal conductivity, there is a disadvantage in that the total weight becomes heavy, and in the case of manufacturing the resin plate such as plastic, there is a disadvantage in that the cooling efficiency is lowered.

Republic of Korea Patent Registration 10-1516911 (2015.04.24)

The present invention is to provide a converter cooling device and a vehicle having the same to reduce the weight of the converter cooling device while improving the thermal conductivity to improve the cooling efficiency.

Converter cooling apparatus for achieving the object of the present invention,

In the converter cooling device to form a cooling pipe embedded in the cooling plate, the converter is mounted on the cooling plate, the cooling fluid flows into the cooling pipe to cool the converter,

And a heat conduction member for absorbing heat of the converter between the converter and the cooling pipe to conduct heat to the cooling pipe.

The cooling plate body is characterized in that made of a lightweight resin material.

The cooling pipe is embedded in the cooling plate by an insert injection method, the cooling plate on the top of the cooling pipe is opened to form a buried to expose the top surface of the cooling pipe.

The heat conductive member,

The heat dissipation surface is formed by wrapping the cooling pipe and the surface contact is made to extend from both sides of the heat dissipation surface to the upper side and bent in both wing shapes, and the solder heat is applied to the cooling pipe so that the heat dissipation surface is connected to the cooling pipe. Characterized in that the surface contact is installed.

The converter is provided with a heat dissipation unit for dissipating heat of the heat dissipation elements, the cooling plate is provided with a seating groove for passing the cooling pipe and the heat dissipation unit of the converter is formed, characterized in that the heat conductive member is provided in the seating groove. do.

Converter cooling apparatus according to the present invention,

Mounting grooves in which the heat dissipation parts are mounted corresponding to the heat dissipation part of the converter are formed, and a cooling plate for installing the converter on the upper surface;

A cooling pipe installed to be exposed to an upper surface of the cooling plate and having a cooling fluid flowing therein;

 A heat conduction member surrounding the lower surface and the side surface of the cooling pipe in the seating groove, and installed to form a surface on the seating recess upper surface to conduct heat;

A solder paste interposed on a contact surface between the thermally conductive member and the cooling pipe;

And a heat conduction pad attached between a bottom surface of the heat dissipation unit of the converter and a seating groove including the heat conduction member.

In the converter cooling apparatus manufacturing method according to the first embodiment of the present invention,

The cooling plate is buried so that the upper part of the cooling pipe is exposed and a plurality of seating grooves are formed in which the radiator of the converter is seated, and the radiator of the converter is installed to be seated in the seating groove. The converter cools the converter by flowing a cooling fluid through the cooling pipe. As a manufacturing method of a chiller,

Extruding and forming a cooling pipe to be embedded in the cooling plate;

A heat dissipating surface having a heat dissipating surface that surrounds the cooling pipe and makes surface contact, and a heat absorbing surface having a heat absorbing surface which is bent in both wings to extend upward from both sides of the heat dissipating surface, and corresponds to the heat dissipating portion of the converter. Applying a solder paste to the thermal conductive member;

After the cooling pipe having the heat conducting member is installed in the cooling plate injection mold, the upper part of the cooling pipe and the upper surface of the heat conducting member are embedded in the cooling plate body to expose the insert, and insert injection is formed to form a seating groove in which the radiator of the converter is seated. Making a step;

Installing a heat dissipation part of the converter to be seated in a mounting groove through a heat conductive pad on an exposed upper portion of the cooling pipe and an upper surface of the heat conductive member;

Characterized in that it comprises a.

In addition, the converter cooling apparatus manufacturing method according to the present invention,

The insert injection step,

A first injection step of inserting the heat conducting member into the cooling pipe through the solder paste, and inserting a part of the cooling plate body to open the upper surface of the heat pipe and the upper surface of the heat conducting member with respect to the region where the heat conducting member is installed;

A dck injection step of injection molding the entire cooling plate body by installing a cooling pipe in which the body part and the heat conductive member are integrally formed by the first injection into a cooling plate injection mold; It characterized in that to perform.

An inverter for supplying the power of the secondary electric generator and the generator to the power of the driving power source motor, the converter cooling device including the heat conducting member according to the first embodiment of the present invention and the converter cooling device manufactured by the method An automobile provided as a cooling device for a converter can be provided.

According to a second embodiment of the present invention,

In the converter cooling device for cooling the converter by embedding the cooling pipe on the cooling plate so that the upper portion is exposed, the converter is mounted thereon,

It includes a cooling chamber which is installed in the lower portion of the radiator of the converter is installed on the flow path of the cooling pipe to extend the cooling flow path and directly conducts the heat of the converter radiator to the cooling fluid,

The cooling chamber includes: a chamber inserted on the flow path of the cooling pipe to expand the cooling flow path;

An upper cover of the chamber body for conducting heat absorbed by the radiator of the converter to a cooling fluid flowing in the cooling chamber body;

Characterized in that it comprises a.

A heat conduction pad is interposed between the upper cover of the chamber body and the heat dissipation part of the converter.

In the converter cooling apparatus manufacturing method according to the second embodiment of the present invention,

The cooling plate is buried so that the upper part of the cooling pipe is exposed and a plurality of seating grooves are formed in which the radiator of the converter is seated, and the radiator of the converter is installed to be seated in the seating groove. The converter cools the converter by flowing a cooling fluid through the cooling pipe. As a manufacturing method of a chiller,

Extruding and forming a cooling pipe to be embedded in the cooling plate;

A pipe connection part is formed at both sides, and the chamber body is formed of a material having good thermal conductivity and a chamber body communicating with the cooling flow path through the pipe connection part and forming an open top surface, and having a top cover coupled to block the top surface of the chamber body. And cutting the cooling pipe at a position corresponding to the radiating part of the converter by a predetermined interval to insert the chamber body to connect the cooling pipes to both pipe connection parts.

After installing the chamber body on the flow path of the cooling pipe and installing the cooling pipe coupled with the upper cover in the cooling plate injection mold, the upper portion of the cooling pipe and the upper surface of the upper cover are embedded in the cooling plate body, the converter Inserting and inserting a recess into which a heat dissipation part of the heat sink is formed;

Installing a heat dissipation part of the converter to be seated in a seating groove through a heat conductive pad on an exposed upper portion of the cooling pipe and an upper surface of the upper cover;

Characterized in that it comprises a.

In addition, in the configuration in which the cooling chamber is installed, the cooling chamber is inserted into and installed on the flow path of the cooling pipe, and the first injection is performed to inject a part of the cooling plate body including the corresponding portion, and then, the cooling chamber is installed in a mold to cover the entire body. It can manufacture by the method of secondary injection which injects.

An inverter for supplying the power of the secondary electric generator and the generator to the power of the driving power source motor of the converter cooling device including the cooling chamber according to the second embodiment of the present invention and the converter cooling device manufactured by the manufacturing method and An automobile provided as a cooling device for a converter can be provided.

According to a third embodiment of the present invention,

The cooling plate is buried so that the upper part of the cooling pipe is exposed and a plurality of seating grooves are formed in which the radiator of the converter is seated, and the radiator of the converter is installed to be seated in the seating groove. The converter cools the converter by flowing a cooling fluid through the cooling pipe. As a chiller,

A heat conducting member for conducting heat between the radiator and the cooling pipe of the converter;

A cooling chamber comprising a chamber body inserted into the flow path of the cooling pipe and an upper cover of the chamber body for directly conducting heat from the radiator of the converter to the cooling fluid;

According to each of the seating grooves characterized in that any one or a combination of the heat conducting member or the cooling chamber is installed.

A heat conduction pad may be interposed between the heat conduction member and the heat dissipation part of the converter and between the upper cover of the cooling chamber.

The cooling plate body and the chamber body of the cooling chamber is characterized in that made of a lightweight resin material.

The thermally conductive member and the upper cover are made of a metal having good thermal conductivity, for example, aluminum.

The converter cooling apparatus manufacturing method according to the third embodiment,

In the manufacturing method of the converter cooling device to form a cooling pipe embedded in the cooling plate, the converter is mounted on the cooling plate, the cooling fluid flows into the cooling pipe to cool the converter.

Extruding and forming a cooling pipe to be embedded in the cooling plate;

A heat conducting member having a heat absorbing surface that surrounds the cooling pipe and makes surface contact and extends from both sides of the heat radiating surface to the upper side and is bent into two wings;

A pipe connection part is formed at both sides, and is connected to the cooling pipe through the pipe connection part, and has a chamber body that communicates with the cooling flow path and forms an upper surface open chamber, and has a top cover coupled to block the top surface of the chamber body. Preparing the chamber;

Coupling the heat conductive member to a cooling pipe at a position corresponding to a heat dissipation part of a converter, or inserting the cooling chamber into a cooling pipe flow path;

A first injection step of insert-molding a portion of the cooling plate body by insert-injecting the heat conductive member or the region in which the cooling chamber is installed;

In the first injection step, installing a cooling pipe in which a heat conducting member or a cooling chamber forms a part of a cooling plate body together with a cooling pipe in a mold for cooling plate injection, and performing second injection molding;

It characterized in that it comprises the step of installing the heat dissipation portion of the converter corresponding to the cooling pipe and the heat conduction member buried in the second injection step to expose the upper portion to the body of the cooling plate and the upper surface of the upper cover of the cooling chamber via the heat conductive pad. .

In addition, when the heat conducting member and the cooling chamber installed in the cooling pipe are close to each other, the first heat injection member and the cooling chamber to be embedded in a portion of one cooling plate to the first injection molding, and to use the second injection molding.

Supplying the power of the secondary electric generator and the generator to the power of the driving power source motor, the converter cooling device installed by the heat conducting member or / and the cooling chamber according to the present invention in the cooling pipe and the converter cooling device manufactured by the manufacturing method thereof. It is possible to provide a vehicle provided as a cooling device for an inverter and a converter.

In the converter cooling device according to the present invention, since the cooling plate body can be made of a lightweight resin material, the weight can be reduced, and the heat generated from the converter is cooled by forming a heat conductive member made of a metal material having good thermal conductivity such as aluminum. Since it is easily conducted to the pipe, the heat exchange efficiency is improved, thereby increasing the cooling effect.

In addition, when the cooling chamber is provided, the chamber body and the cooling plate body may be made of a lightweight resin material to reduce the overall weight, and the upper cover of the chamber body is made of a metal material having good thermal conductivity, thereby providing heat to the radiator of the converter. Since the upper cover is directly conducted to the cooling fluid, the cooling efficiency is increased.

In the method for manufacturing a cooling apparatus according to the present invention, by inserting a heat conducting member in a cooling pipe and inserting the upper surface to be exposed, the heat conducting member can be formed into a member that is in surface contact with a circumference of the cooling pipe to form a wide heat conduction area. Since it is possible to be buried together with the cooling pipe, there is an advantage that the manufacturing process is simple because it can be manufactured integrally without having a separate fixing means or a separate installation space or structure.

In addition, in the manufacturing method of the cooling device having a cooling chamber, the chamber body is connected to the cooling pipe and the insert is inserted into the cooling plate so that the upper part of the cooling plate is opened so that the upper part is opened. Since the part and the upper cover coupling part are embedded in the body of the cooling plate, there is an effect that can be formed integrally without fear of leakage.

In addition, according to the third embodiment of the present invention, a method of manufacturing a cooling apparatus includes installing a heat conducting member or a cooling chamber in a cooling pipe, and inserting only a heat conducting member or a cooling chamber in an insert injection method into a cooling plate body and forming a secondary body. As a method of forming the entire cooling plate by insert injection method, it is difficult to precisely control each support and alignment state when a plurality of heat conductive members or cooling chambers are installed when insert injection is performed in one step. There is an effect that can reduce the alignment and the occurrence rate of the heat conductive member or the cooling chamber installation.

1 (a) to (c) is a block diagram of a converter cooling apparatus according to a first embodiment of the present invention.
2 is an explanatory diagram of a method for manufacturing a converter cooling apparatus according to a first embodiment of the present invention.
3 (a) to (c) is a block diagram of a converter cooling apparatus according to a second embodiment of the present invention.
4 is an explanatory diagram of a method for manufacturing a converter cooling apparatus according to a second embodiment of the present invention.
5 is an explanatory diagram of a manufacturing method according to still another embodiment of the converter cooling apparatus according to the present invention;

Hereinafter, an embodiment of the converter cooling apparatus of the present invention will be described in detail with reference to the accompanying drawings.

1 (a) to (c) is a block diagram of a converter cooling apparatus according to a first embodiment of the present invention.

According to the first embodiment of the present invention, the cooling pipe 20 is buried in the cooling plate 10, the converter 60 is mounted on the cooling plate 10, and cooled into the cooling pipe 20. In the converter cooling device for cooling the converter 60 by flowing a fluid,

It is characterized in that it further comprises a heat conducting member 40 to absorb the heat of the converter 60 between the converter 60 and the cooling pipe 20 to conduct heat to the cooling pipe 20.

In the converter cooling device of the first embodiment according to the present invention, as shown in (a) to (c) of FIG.

Mounting grooves 11 in which the heat dissipating part 61 is mounted are formed to correspond to the heat dissipating part 61 of the converter 60, and a cooling plate 10 for installing the converter 60 on an upper surface thereof, and the cooling plate 10. The upper surface of the (10) is buried in the upper portion is exposed, the cooling pipe 20, the cooling fluid flows, and the surface contact the surface surrounding the lower surface and the side of the cooling pipe 20 in the seating groove 11, It is installed on the upper surface of the groove 11 to the heat conducting member 40 for conducting the heat of the converter 60 to the cooling pipe 20 and the contact surface between the heat conducting member 40 and the cooling pipe 40. A thermal conductive pad 50 interposed between the solder paste 30 interposed therebetween and a seating groove 11 including a lower surface of the heat dissipation portion 61 of the converter 60 and an upper surface of the heat conductive member 40; It is characterized by including.

2 is a diagram illustrating a method of manufacturing a converter cooling apparatus according to a first embodiment of the present invention.

Extruding and forming the cooling pipe 20 to be embedded in the cooling plate 10 (S10), and the both sides of the heat dissipating surface 41 and the heat dissipating surface 41 that the surface contact is made by wrapping the cooling pipe 20 In step (S20) to prepare a heat conduction member 40 having a heat absorption surface 42 is bent in both wings to extend in the upper portion in (S20), the cooling of the position corresponding to the heat radiating portion 61 of the converter 60 After the solder paste 30 is applied to the pipe 20 to install the thermally conductive member 40 coupled thereto (S30), and the cooling pipe 20 provided with the thermally conductive member 40 is installed in the cooling plate injection mold. The upper surface of the cooling pipe 20 and the upper surface of the heat conducting member 40 are embedded in the cooling plate 10 body, and the mounting groove 11 is formed in which the heat radiating portion 61 of the converter 60 is seated. Insert injection step (S40) and the heat conduction pad (on the exposed upper portion of the cooling pipe 20 and the upper surface of the heat conductive member 40 ( It is characterized in that it comprises a step (S50) via the 50 to be installed so that the heat dissipation portion 61 of the converter is seated in the mounting groove (11).

As shown in (a) of FIG. 1, the cooling pipe 20 through which the cooling fluid flows is buried in the cooling plate 10, and the upper part of the cooling pipe 20 is buried. The cooling plate 10 is provided with a seating groove 11 in which the heat dissipation part 61 of the converter is seated, and the heat dissipation part 61 of the converter is provided in the cooling pipe 20 passing through the bottom of the seating recess 11. A heat conductive member 30 is installed to absorb and conduct the cooling pipe 20. The lower surface of the converter 60 is formed with a heat dissipation portion 61 for heat dissipation of the heat generating elements in the converter. The radiator 61 of the converter is seated in the seating groove 11 of the cooling plate 10, the cooling pipe 20 passes through the lower portion.

In general, the cooling pipe 20 is buried in the cooling plate 10, and the converter 60 is seated and installed thereon to cool the converter. In order to conduct heat generated from the converter to the cooling pipe 20, the cooling plate 20 is installed. (10) is conducted to the cooling pipe 20 through the body. Therefore, cooling efficiency may be improved only when the cooling plate 10 body has good thermal conductivity. Therefore, in the related art, the body of the cooling plate 10 is made of a metal material such as aluminum to increase the thermal conductivity to cool the converter. This has the disadvantage that the total weight is increased.

The present invention is not made of a metal material as described above is composed of a lightweight resin material, instead of installing a heat conducting member 40 for heat conduction between the converter and the cooling piping to improve the cooling effect and reduce weight It is to be possible.

As shown in (b) of FIG. 1, a thermally conductive member 40 having a shape as shown in (c) of FIG. 1 is coupled to the cooling pipe 20, and this is installed in a cooling plate manufacturing mold to insert injection method. Manufacture. The cooling plate 20 and the cooling plate 10 on the upper portion of the heat conductive member 40 are formed in an open state, and are interposed between the cooling pipe 20 and the heat conductive member 40 through the solder paste 30 and then injected. Install it so that surface contact is made.

The thermally conductive member 40, as shown in Fig. 1 (c),

The cooling pipe 20 is made up of the heat dissipating surface 41 and the heat absorbing surface 42 which is bent in both wings extending upward from both sides of the heat dissipating surface 41 and the surface contact is made, the cooling pipe ( Solder paste 30 is applied to 40 so that the heat dissipation surface 41 is installed in surface contact with the cooling pipe 20. Figure 1 (c) is a figure showing the shape of the heat conducting member 40 is installed in a straight section, the curved section of the cooling pipe 20 is composed of a curved heat conducting member corresponding to the curved shape of the cooling pipe 20. can do.

In the embodiment of the present invention, the converter 60 is provided with a heat dissipation unit 61 for dissipating heat of the heat dissipation elements, and the cooling plate 10 passes through the cooling pipe 20 and of the converter 60. A seating groove 11 is formed on which the heat dissipation part 61 is mounted, and the heat conductive member 40 is provided in the seating groove 11 as an example. However, the present invention is not limited thereto, and the mounting groove or the heat dissipation part may not be formed to correspond to each other. In this case, the heat conducting member 40 may be installed in the entire cooling pipe 20 or at predetermined intervals.

The converter cooling device provided with the heat conducting member 40 according to the present invention in the cooling pipe 20 and the converter cooling device manufactured by the manufacturing method thereof are supplied with the power of the secondary electric generator and the generator as the power of the driving power source motor. An automobile provided as a cooling device for an inverter and a converter can be provided.

The first embodiment of the present invention includes a heat conduction member 40 for conducting heat of the converter to the cooling pipe 20 between the cooling pipe 20 and the converter 60 so as to be embedded in the cooling plate 10. As a result, the converter radiator 61 conducts heat to the cooling pipe 20 through the thermal conductive pad 50 and the thermal conductive member 40 to cool the converter. Therefore, even if the cooling plate 10 body is not made of a metal material but made of a light weight resin material, the cooling effect can be obtained by heat conduction by the heat conducting member 40, and the cooling plate 10 body can be made of a lightweight resin material. Thus reducing the total weight.

3 (a) to (c) is a block diagram of the converter cooling apparatus according to the second embodiment of the present invention.

According to a second embodiment of the present invention,

In the converter cooling apparatus for cooling the converter by embedding the cooling pipe 20 in the cooling plate 10 so that the upper portion is exposed, and the converter 60 is seated thereon,

Cooling chamber 70 is installed in the lower portion of the radiator 61 of the converter is installed on the flow path of the cooling pipe 20 to expand the cooling flow path and directly conducts the heat of the converter radiator 61 to the cooling fluid. ),

The cooling chamber 70 is inserted into and installed on the flow path of the cooling pipe 20 to expand the cooling flow path, and the cooling chamber body 71 receives heat absorbed by the radiator 61 of the converter. And an upper cover 72 of the chamber body that conducts with the cooling fluid flowing therein, and a heat conductive pad 50 is interposed between the upper cover 72 and the heat dissipation portion 61 of the converter.

4 is a diagram illustrating a method of manufacturing a converter cooling apparatus according to a second embodiment of the present invention.

Extruding and forming a cooling pipe 20 to be embedded in the cooling plate 10 (S110), and a pipe connection portion is formed on both sides, and is connected to the cooling pipe 20 through the pipe connection to communicate with the cooling flow path. And a cooling chamber 70 including a chamber body 71 forming a chamber having an open top surface and a material having good thermal conductivity and having a top cover 72 coupled to block the top surface of the chamber body 71. Step (S120) and the cooling pipe 20 of the position corresponding to the radiator 61 of the converter by cutting a predetermined interval to insert the chamber body 71 to connect the cooling pipe 20 to the pipe connection on both sides. And installing the upper cover 72 in combination (S130), and installing the chamber body 71 on the flow path of the cooling pipe 20, and cooling plate 20 in which the upper cover 72 is coupled to the cooling plate 20. After installing in the injection mold, the upper part and the upper part of the cooling pipe 20 And embedding the cooling plate body into the cooling plate body to expose the upper surface of the burr 72 to form a seating groove 11 in which the heat dissipation part 61 of the converter is seated (S140), and the cooling pipe. It is characterized in that it comprises a step (S150) to be installed on the exposed top of the 20 and the upper surface of the upper cover 72 via the thermal conductive pad 50, the heat radiating portion 61 of the converter is seated.

The second embodiment of the present invention, as shown in (a) to (c) of Figure 3, the cooling chamber (on the flow path of the cooling pipe 20 corresponding to the position of the heat radiating portion 61 of the converter ( 70), the chamber body 71 is made of a non-metallic light weight resin material, and only the upper cover 72 is made of a metal material having good thermal conductivity such as aluminum. In addition, the cooling plate 10 body is also made of a lightweight material.

The cooling chamber 70 has a pipe connection part for connecting to the cooling pipe 20 on both sides of the chamber body 71, and the cooling pipe 20 and the flow path are connected in communication with the pipe connection. The chamber body 71 is a container-type structure which expands the flow path of the cooling pipe 20, and can be designed in size in consideration of the heat dissipation area, and can be made of a nonmetallic lightweight resin material. However, the upper cover 72 should be made of a thermally conductive material such as aluminum having good thermal conductivity so as to directly conduct heat to the cooling fluid.

The cooling chamber 70 is inserted into and installed in the cooling pipe 20, and the cooling plate body is injection molded using a number of lightweight resin materials installed in the mold. Thereafter, the converter 60 is installed on the exposed upper surface of the cooling pipe 20 and the upper cover 72 through the thermal conductive pad 50. Since the heat dissipation part 61 housing of the converter is made of metal, and the upper cover of the cooling chamber is made of metal, the heat conduction pad 50 is installed by inserting the heat conduction pad so as to be closely connected between the metals and conduct heat.

Therefore, according to the second embodiment of the present invention, by providing the cooling chamber 70, the area of the upper cover 72 in which the cooling pipe 20 is expanded in correspondence with the heat dissipation portion 61 of the converter 60. The heat conduction efficiency is good because the heat conduction, and in direct contact with the cooling fluid on the flow path through the upper cover 72 can increase the cooling effect. Therefore, when the cooling chamber 70 is used, it is effective to cool the heat dissipation part of the elements that require some concentrated cooling, that is, the heat generation.

Inverter and converter for supplying the power of the secondary electric generator and the generator to the power of the driving power source motor of the converter cooling device installed in the cooling pipe according to the present invention and the converter cooling device manufactured by the method An automobile provided as a cooling device can be provided.

According to a third embodiment of the present invention, the heat conducting member 40 of the first embodiment and the cooling chamber 70 of the second embodiment are provided to correspond to required positions, respectively.

A heat conduction member 40 for conducting heat between the heat dissipation portion 61 and the cooling pipe 20 of the converter, the chamber body 71 inserted into the flow path of the cooling pipe 20 and the heat dissipation part of the converter. The heat conducting member 40 or the cooling chamber 70 is formed in the cooling chamber 70 formed of the upper cover 72 of the chamber body for directly conducting heat to the cooling fluid. Any one or characterized in that the composite is installed.

Herein, a thermal conductive pad 50 is interposed between the heat conductive member 40 and the heat dissipation part 61 of the converter and between the upper cover 72 and the heat dissipation part 61 of the cooling chamber 70, respectively. .

Thus, the third embodiment of the present invention, as shown in Figure 1 (a) and Figure 3 (a), may be configured by combining the heat conducting member 40 and the cooling chamber 70. And, each position may be configured by installing a heat conductive member 40 or a cooling chamber 70. That is, the third embodiment may be a configuration in which the heat conducting member 40 and the cooling chamber 70 are combined, and the heat conducting member 40 or the cooling chamber of each of the heat conducting members 40 corresponds to the round shape of the cooling pipe 20. The shape of 70 can be matched.

Supplying the power of the secondary electric generator and the generator to the power of the driving power source motor, the converter cooling device installed by the heat conducting member or / and the cooling chamber according to the present invention in the cooling pipe and the converter cooling device manufactured by the manufacturing method thereof. It is possible to provide a vehicle provided as a cooling device for an inverter and a converter.

On the other hand, in another embodiment of the method for manufacturing a converter cooling apparatus of the present invention, a method of injection molding the injection molding step divided into two stages.

5 is an explanatory diagram of a manufacturing method according to still another embodiment of a converter cooling apparatus according to the present invention.

Forming by extrusion molding the cooling pipe 20 to be embedded in the cooling plate 10 (S210),

A heat conduction member 40 having a heat dissipation surface 41 which surrounds the cooling pipe 20 and has surface contact, and a heat absorption surface 42 extending upward from both sides of the heat dissipation surface 41 and bent into two wings. And a chamber body 71 formed on both sides, the chamber body 71 connected to the cooling pipe 20 through the pipe connection part and forming a chamber in communication with a cooling flow path and having an open upper surface, and the chamber having a good thermal conductivity. Preparing a cooling chamber 70 having an upper cover 72 coupled to block an upper surface of the body 71 (S220);

Coupling the heat conductive member 40 to the cooling pipe 20 at a position corresponding to the heat dissipation part 61 of the converter, or inserting the cooling chamber 70 into the cooling pipe 20 on the flow path. (S230),

A first injection step (S240) of insert-molding a portion of the cooling plate body by insert-injecting an area in which the heat conductive member 40 or the cooling chamber 70 is installed;

In the first injection step (S240), the heat conducting member 40 or the cooling chamber 70 is installed in the cooling plate injection mold by forming a cooling pipe in which the cooling pipe 20 forms a part of the cooling plate body in the second injection molding. Step (S250) and

In the second injection step (S250), the heat conduction pad 50 is disposed on the upper surface of the cooling pipe 20 and the upper cover 72 of the cooling pipe 20 and the heat conducting member 40 or the cooling chamber 70, which are embedded to expose the upper part of the cooling plate. In step S260, the radiator 61 of the converter is installed to correspond to each other.

As described above, according to another embodiment of the method for manufacturing a converter cooling apparatus, the heat conducting member 40 or the cooling chamber 70 is installed in the cooling pipe 20, and the heat conducting member 40 or the cooling chamber 70 is installed. Only the injection-molded area is first injected to form a part of the cooling plate body on the cooling pipe 20. Thus, by injection molding only the region in which the heat conductive member 40 or the cooling chamber 70 is installed, the defective rate can be reduced in the insert injection process of the corresponding region, and the secondary injection process can be quickly processed by a simple process.

Although the present invention has been described with reference to the embodiments shown in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

10: cooling plate 11: seating groove
20: cooling piping 30: solder paste
40: heat conductive member 41: heat dissipation surface
42: heat absorption surface 50: heat conduction pad
60: converter 61: heat dissipation part of the converter
70: cooling chamber 71: chamber body
72: top cover

Claims (6)

The cooling pipe 20 is embedded in the cooling plate 10, the converter 60 is seated and installed on the cooling plate 10, and the cooling fluid flows into the cooling pipe 20 to cool the converter 60. In the converter chiller,
The converter cooling device further comprises a heat conducting member 40 for absorbing heat from the converter 60 and conducting heat to the cooling pipe 20 between the converter 60 and the cooling pipe 20. .
The method according to claim 1,
The cooling plate 10 is made of a lightweight resin material, the thermally conductive member 40 is a converter cooling apparatus, characterized in that made of a thermally conductive metal material.
The method according to claim 1,
The heat conductive member 40,
The heat dissipation surface 41 which is installed in surface contact with the lower surface and both sides of the cooling pipe 20 through the solder paste 30 and the upper surface of the both sides of the heat dissipation surface 40 is drawn out of the cooling plate 10. It comprises a heat absorbing surface 42 is bent to form a plane horizontally from the upper surface,
It is embedded in the body of the cooling plate 10 so that only the upper surface of the heat absorbing surface 42 is exposed, and a heat conductive pad 50 is interposed on the upper surface of the heat absorbing surface 42 to heat the converter 60. Converter cooling device, characterized in that configured to absorb and conduct to the cooling pipe (20).
The cooling pipe 20 is embedded in the cooling plate 10, the converter 60 is seated and installed on the cooling plate 10, and the cooling fluid flows into the cooling pipe 20 to cool the converter 60. In the converter chiller,
Mounting grooves 11 on which the heat dissipation part 61 is mounted are formed to correspond to the heat dissipation part 61 of the converter 60, and a cooling plate 10 for installing the converter 60 on the upper surface thereof;
A cooling pipe 20 installed at an upper portion of the cooling plate 10 so as to expose an upper portion thereof, and having a cooling fluid flowing therethrough;
Surrounding the lower surface and the side surface of the cooling pipe 20 in the seating groove (11), is installed to form a surface on the seating groove (11) upper surface and together with the cooling pipe 20 in the cooling plate (10) body A heat conducting member 40 buried and installed to be exposed to an upper surface of the seating groove to conduct heat of the converter 60 to the cooling pipe 20;
A solder paste 30 interposed on a contact surface between the heat conductive member 40 and the cooling pipe 40;
A heat conduction pad 50 attached between a bottom surface of the heat dissipating part 61 of the converter 60 and a seating groove 11 including an upper surface of the heat conducting member 40;
Converter cooling apparatus comprising a.
The method according to claim 4,
The heat conductive member 40,
Converter cooling apparatus, characterized in that configured in a straight or round shape in the longitudinal direction corresponding to the formed straight or round shape of the cooling pipe (20).
In a motor vehicle having a converter for supplying power of a secondary battery or a generator with power of a motor for driving power,
An automobile provided with the converter cooling device according to any one of claims 1 to 5.

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