WO2019139219A1

WO2019139219A1 - Cooling device and method for manufacturing cooling device

Info

Publication number: WO2019139219A1
Application number: PCT/KR2018/011836
Authority: WO
Inventors: 여지원; 오동훈; 이성제
Original assignee: 한온시스템 주식회사
Priority date: 2018-01-09
Filing date: 2018-10-08
Publication date: 2019-07-18
Also published as: KR102409620B1; KR20190084781A; CN110574505A

Abstract

The present invention relates to a cooling device and a method for manufacturing a cooling device and, more specifically, to a cooling device which is structurally simple compared with a conventional cooling device, and thus can be manufactured at a reduced manufacturing cost, prevent a working fluid from flowing downward even when used in a vertical direction, improve heat transfer and cooling efficiency, and can be easily used in a device having a plurality of heat sources although spatial limitation exists, and a method for manufacturing a cooling device.

Description

Cooling device and manufacturing method of cooling device

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooling device and a manufacturing method of the cooling device, and more particularly, to a local heating cooling device for an automobile for cooling a local heat of a sensor, a controller,

Recently, hybrid vehicles and electric vehicles using the driving force of a motor have been attracting attention as a part of measures for environmental problems, and autonomous vehicles having been put into practical use in some countries including the United States are getting attention.

The hybrid, electric, and autonomous vehicles described above are essentially equipped with electronic devices for driving and motor control of an automobile. In particular, in the case of an autonomous vehicle, a GPS signal receiving device for identifying the position of the autonomous traveling vehicle, various radars for monitoring objects around the autonomous traveling vehicle, a communication device for interacting with communication facilities including other autonomous traveling vehicles But also various electronic equipments as well as a plurality of electronic elements, and thus a separate cooling means is necessarily required.

As a typical example of the cooling means for cooling the electronic device as described above, there is a heat sink. The heat sink absorbs and dissipates heat through contact with the heat generating part, but it is not suitable for an autonomous vehicle because the volume of the heat sink is increased to increase the heat capacity of the heat sink.

In addition, a radar-like detection device must be installed outside the autonomous vehicle. In summer when exposed to high-temperature solar heat and geothermal, the temperature of the detection device installed outside the automobile rises to about 100 degrees centigrade There is a problem that the above-mentioned electronic device can not be sufficiently cooled by the heat sink method in which heat is transmitted through the thermal contact and the heat is cooled through the surrounding air.

In order to solve these problems, recently, a cooling device using a phase change heat transfer system having a good heat transfer efficiency is used so that an electronic device having a high thermal load density per unit can be cooled. A heat pipe type is an example of a cooling device using a phase change heat transfer system, and Korean Patent Registration No. 10-045268 (hereinafter referred to as Prior Art 1) discloses technology related thereto.

1 schematically shows a cooling apparatus using the phase-change heat transfer system shown in the prior art 1. In FIG.

1, the cooling apparatus using the phase change heat transfer system of the prior art 1 includes a housing 20, a wick 30, a steam passage 31, and a fan 40. As shown in FIG.

1, a heat source 10 is in contact with a surface of the housing 20, and the heat generated by the heat source 10 is transmitted to the inside of the housing 20. The wick 30 installed inside the housing 20 has a capillary structure and forms a steam flow path 31 by forming a protruding portion or a supporting portion downward. A working fluid is inserted into the steam passage 31 and the working fluid is boiled by the heat transferred from the heat source 10 to the inside of the housing 20 to move upward in the vaporized state. The working fluid in the vaporized state moved to the upper portion of the steam flow path 31 is cooled / condensed again by the air supplied by the fan 40 on the other side of the housing 20 and is liquefied again. The liquefied working fluid flows through the wick 31 And flows back to the lower side by the capillary pressure. That is, the working fluid repeats the boiling at the lower portion of the housing 20 where the heat source 10 is located and the condensation at the upper portion, thereby transferring and cooling the heat generated in the heat source by the state change.

The wick 30 of the prior art 1 is manufactured by sintering a metal powder. In order to form a protrusion on the lower part of the wick 30 as shown in FIG. 1, a metal powder is sintered to manufacture a rectangular wick, 30, it is necessary to process the manufacturing cost, so that the manufacturing cost is increased and when it is used in the vertical direction, the gravity is stronger than the capillary pressure, so that the working fluid can be buried in the lower part of the housing.

It is an object of the present invention to provide a cooling device and a manufacturing method of a cooling device according to the present invention, which simplify the structure of a cooling device using a conventional phase change heat transfer device, And a manufacturing method of the cooling device which can prevent the working fluid from being pushed down to a certain degree even if the cooling device is used in the vertical direction.

In order to solve the above problems, a cooling apparatus according to the present invention includes a base part 100 including at least one protruding member 110 formed on an upper surface thereof and receiving heat from a heat source, A wick 200 covering the upper part of the base part 100 to form a flow path 111 in which the working fluid is boiled and condensed so as to abut the upper end of the base part 100, And cooling means for cooling the working fluid vaporized and vaporized in the flow path 111.

The protruding member 110 protrudes upward from the upper surface of the base unit 100 and extends to one side along the upper surface of the base unit 100.

In addition, a plurality of the protruding members 110 are arranged on the upper surface of the base unit 100 at a predetermined interval in parallel.

In addition, a plurality of the protruding members 110 are arranged on the upper surface of the base part 100 at a predetermined interval and are arranged in two dimensions.

The base 100 includes a partition frame 120 formed on an upper surface thereof and separating the upper surface of the protrusion member 110 from the upper surface of the base member 100 and an insertion portion 310 protruding from the lower surface of the cover 300, (121).

Further, the partition frame 120 is formed so as to surround the protruding member 110.

The base portion 100 further includes an outer frame 130 formed on the outer surface of the upper surface and the insertion portion 121 is formed between the outer frame 130 and the partition frame 120 .

Further, the upper end of the wick 200 is in close contact with the lower surface of the cover 300.

Further, a gas space 210 is formed between the cover 300 and the wick 200, in which a vaporized working fluid is located.

In addition, the cover 300 is spaced apart from the upper end of the wick 200 by a predetermined distance.

The wick 200 may include a fluid passage 220 formed to connect the flow path 111 and the gas space 210.

The wick 200 includes an alignment assisting portion 201 that protrudes from a bottom surface of the wick 200 and is inserted between the adjacent protruding members 110.

In addition, the alignment assisting portion 201 may have a protruding side surface formed as an oblique surface.

The space between the base 100 and the cover 300 is vacuum.

The cover 300 may further include a heat sink 400 formed on the outer surface of the cover 300.

The cooling means is characterized in that the vaporized working fluid is supplied, cooled, condensed and liquefied, and the liquefied working fluid is supplied to the flow path (111).

Further, the cooling means supplies refrigerant to the outer surface of the cover (300).

A method of manufacturing a cooling device according to the present invention includes a first step of inserting a filler material or a filler material layer on a bonding surface of the base part 100 and the cover 300, A second step of disposing the wick 200 and inserting the fitting portion 310 formed on the lower surface of the cover 300 into the insertion portion 121 formed in the base portion 100 to form an assembly, And a fourth step of brazing the flux-applied assembly.

According to the cooling device according to various embodiments of the present invention as described above, since the flow path of the working fluid can be formed without any additional processing on the wick, the apparatus can be simplified, easy to manufacture, There is an effect that can be.

According to the present invention, since a plurality of protruding members are formed on the upper surface of the base, wicks are disposed on the upper ends of the protruding members, and a flow passage in which the working fluid is positioned is located on the side of the protruding member. So that boiling of the working fluid is promoted in the vicinity of the projecting member.

Further, according to the present invention, even when the cooling device is used in the vertical direction, since the working fluid moves to the side surface of the projecting member by the surface tension between the working fluid in liquid state and the projecting member in the wick, There is an effect that it is possible to prevent a certain amount of driving.

Further, according to the present invention, since the wick is used to separate the flow path and the gas space, and the working fluid can be separated in each of the flow path and the gas space by the states of the liquid and the gas, the heat transfer efficiency is improved.

According to the present invention, not only a single cooling device but also a base, a wick, and a cover can be used as a single evaporator and a plurality of evaporators can be connected to a single cooling device, It is possible to reduce the volume of the apparatus, and in particular, it is necessary to cool a plurality of heat sources such as autonomous vehicles, but it is useful for apparatuses with a large volume limitation.

Further, according to the present invention, since the base portion, the wick and the cover having a simple structure can be manufactured by assembling and brazing, it is easy to manufacture.

1 is a sectional view of a cooling device using a conventional phase change heat transfer method.

2 is an exploded perspective view of a cooling device according to a first embodiment of the present invention;

3 is an exploded cross-sectional view of a cooling device according to a first embodiment of the present invention;

4 is an assembled sectional view of a cooling device according to a first embodiment of the present invention;

5 is a perspective view of a cooling apparatus according to a first embodiment of the present invention in a state where a heat sink and a cooling means are installed.

6 is a perspective view of another embodiment of the projecting member of the present invention.

7 is a sectional view of a cooling device according to a second embodiment of the present invention;

8 is a sectional view of a cooling device according to a third embodiment of the present invention.

9 is a schematic view of a cooling apparatus according to a fourth embodiment of the present invention.

10 is a schematic view of a cooling apparatus according to a fourth embodiment of the present invention applied to a vehicle.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, preferred embodiments of a cooling apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

[Cooling Apparatus According to First Embodiment]

FIG. 2 is an exploded perspective view of the cooling device according to the first embodiment of the present invention, and FIG. 3 is an exploded sectional view of the cooling device according to the first embodiment of the present invention, And FIG. 4 is a cross-sectional view showing a state where the cooling device according to the first embodiment of the present invention shown in FIG. 2 and FIG. 3 is engaged.

2 to 4, the cooling apparatus according to the first embodiment of the present invention may include a base unit 100, a wick 200, and a cover 300.

2 to 4, the base portion 100 together with the cover 300 forms the appearance of the cooling device according to various embodiments of the present invention.

As shown in FIGS. 2 to 4, a plurality of protruding members 110 may be formed in a predetermined space on the upper surface of the base 100. As shown in FIG. 2, a plurality of protruding members 110 protrude upward from the upper surface of the base unit 100, and protrude upward from the upper surface of the base unit 100 The protruding member 110 of the present invention is not limited thereto but may be formed in various shapes to form a flow path of the working fluid.

As shown in FIG. 2, a plurality of bar-shaped protruding members 110 may be disposed on the upper surface of the base 100 at a predetermined distance.

3 and 4 show the flow path 111 of the working fluid. The flow path 111 is a space surrounded by the protruding member 110 and the base portion 100, and a working fluid can be injected into the portion, and the working fluid can be in a liquid state at the time of injection.

The working fluid is a medium for transferring heat in the present invention. When the heat is transferred from the heat source, the working fluid is boiled in the flow path 111 and vaporized, or condensed / cooled in a gaseous state to transfer heat while being liquefied. In order to cool the working fluid in the gaseous working fluid, an embodiment of the present invention may further include cooling means for supplying the cooling fluid to a portion where the working fluid in the gaseous state is located.

In the cooling apparatus according to the first embodiment of the present invention, after the base unit 100 and the cover 300 are assembled and coupled, the base unit 100 and the cover 300 are combined with each other, The working fluid can be easily boiled by reducing the boiling point of the refrigerant used as the working fluid by lowering the pressure of the space formed by the refrigerant flow path 300 to be lower than the atmospheric pressure of 1 atmospheric pressure.

2 to 4, the base portion 100 may further include a partition frame 120, an outer frame 130, and an insertion portion 121. [

As shown in FIGS. 2 to 4, the partition frame 120 is formed to surround the plurality of protruding members 110. The upper end of the partition frame 120 is higher than the upper end of the protruding member 110 in order to dispose the wick 200 to be described later in an inner space defined by the partition frame 120,

2 to 4, the outer frame 130 is located outside the dividing frame 120, and the insertion portion 121 is formed between the dividing frame 120 and the outer frame 130 .

The insertion portion 121 is a portion in which a fitting portion 310 which is a part of a cover 300 to be described later is inserted. One side of the insertion portion 121 shown in FIG. 3 is divided into a compartment frame 120 and an outer frame 130, Lt; / RTI > The reason for forming the insertion portion 121 between the partition frame 120 and the outer frame 130 is that when the various embodiments of the present invention are manufactured by the brazing method, the brazing flux to be sprayed is applied to the base portion 100 To the inner space defined by the partition frame 120 formed on the upper surface of the partition wall 120. [ The above-described effects will be described in more detail when the method of manufacturing the cooling device according to the present invention is described.

The wick 200 is covered with the base portion 100 so that one side abuts the upper end of the protruding member 110 and the working fluid flow path surrounded by the upper surface of the base portion 100, the protruding member 110 and the wick 200 110).

The wick 200 has a structure in which a capillary tube is formed by sintering a metal powder. The liquid working fluid seeps into a capillary tube formed in the wick 200 by capillary pressure. That is, when the vaporized working fluid is cooled / condensed and liquefied, the liquefied working fluid seeps into the capillary of the wick 200, spreads evenly to the wick 200 by the capillary pressure, and then moves downward.

The metal powder forming the wick 200 may be formed of various materials, but in the first embodiment of the present invention, the wick 200 can be formed by sintering Ni powder that is easy to apply to a vehicle. In the cooling apparatus according to the first embodiment of the present invention, the wick 200 is plate-shaped, but the present invention is not limited to this, and the wick 200 may have various shapes.

As shown in Figs. 2 to 4, the cover 300 covers the upper portion of the base portion 100 to complete the first embodiment of the present invention. Since the base part 100 and the cover 300 are easily exchanged with each other and the inner space must be maintained in a vacuum state, the base part 100 and the cover 300 can have high thermal conductivity, Or may have a structure capable of having the strength.

The first embodiment of the present invention is characterized in that the protrusion member 110 is formed on the base part 100 that is easier to process than the wick 200 and the wick 200 is covered on the upper part of the protrusion member 110 Since the flow path 111 for the working fluid is formed in the wick 200, it is not necessary to separately process the wick 200, so that it is easy to manufacture the cooling device, thereby reducing the manufacturing cost.

Since the heat transferred from the heat source located at the lower portion of the base unit 100 is transmitted to the protruding member 110, boiling of the working fluid is promoted near the side surface of the protruding member 110, The working fluid in the liquid state absorbed by the capillary formed in the capillary tube 110 moves along the side surface of the protruding member 110 due to the surface tension with the side surface of the protruding member 110, It is possible to prevent the working fluid from being pushed down to a certain degree.

FIG. 5 shows a heat sink 400 and a cooling means provided on the upper part of the cooling device according to the first embodiment of the present invention shown in FIG. 2. As shown in FIG. 5, The cooling device according to the embodiment may be a fan 500 installed on the top of the heat sink 400.

The heat sink 400 shown in FIG. 5 may be composed of a plurality of heat sinks. The heat sink 400 increases the cooling efficiency by widening the contact area with the cooling fluid. The heat sink 400 may transmit heat from the inside of the cover 300, Take heat exchange with air used as cooling fluid.

The fan 500 is an example of cooling means for cooling the heat sink 400 by supplying a cooling fluid, that is, air to the heat sink 400. The fan 500 is installed at the top of the heat sink 4000, The position where the fan 500 is installed is not limited to the upper portion of the heat sink 400 and the cooling fluid may be supplied using various methods, The vaporized working fluid can be cooled in various ways.

The fan 500 is coupled to the hollow bracket 510 at a central portion thereof and the bracket 510 is coupled to the side surface of the base portion 100 and installed at the upper portion of the heat sink 400.

The fan 500 is not always used as an example of the heat sink 400 and the cooling means, and the fan 500 can be used individually as an example of the heat sink 400 or the cooling means.

The protrusion member 110 formed on the base 100 may have a shape other than the bar shape shown in FIG.

6 shows only the base part 100 having a shape different from that of the projecting part 110. FIG.

As shown in FIG. 6, the protruding member 110 may have a square pin shape instead of a bar shape. The rectangular pin-shaped protruding member 110 has an effect of increasing the degree of freedom when bubbles are generated / removed from the working fluid than the bar-shaped protruding member 110. In this case, the rectangular pin- And can be arranged two-dimensionally on the upper surface of the base portion 100. [

[Cooling Apparatus According to Second Embodiment]

The cooling apparatus according to the second embodiment of the present invention differs from the cooling apparatus according to the first embodiment in the shape of the cover. Therefore, the second embodiment of the present invention will be described in detail with respect to the cover different from that of the first embodiment, and the configuration thus changed, and the configuration not described is regarded as the same as the first embodiment.

7 is a cross-sectional view of a cooling apparatus according to a second embodiment of the present invention.

7, the cooling apparatus according to the second embodiment of the present invention includes a gas space 210 formed between the cover 300 and the wick 200. The gas space 210 is a portion in which the working fluid vaporized in the flow path 111 is located and the vaporized working fluid is located in the gas space 210 and the liquefied working fluid is located in the flow path 111. That is, the wick 200 separates the vaporized working fluid from the liquefied working fluid by partitioning the inner space formed by the base portion 100 and the cover 300.

The heat sink 400 or the fan 500 shown in FIG. 5 may be installed on the upper part of the gas space 210 to condense / cool the vaporized working fluid located in the gas space 210. The working fluid condensed / cooled and liquefied at a position adjacent to the cover 300, that is, above the gas space 210, seeps into the capillary formed in the wick 200 defining the gas space 210, It can move to the flow path 111 located at the lower part of the wick 200 (the direction of the arrow B in Fig. 7)

The working fluid changed from the liquid to the gaseous state in the flow path 111 by the heat transferred from the heat source can move through the wick 200 and into the gas space 210. The fluid passage 220 may be formed in the wick 200 as shown in FIG. 7, so that the working fluid changed into the gaseous state easily moves from the flow passage 111 to the gas space 210.

The working fluid in the gaseous state through the fluid passage 220 can move in the A arrow direction. Since the fluid passage 220 can be formed in such a size that only the working fluid in the gaseous state can pass therethrough and the size of the surrounding capillary pores is smaller even if water seeps into the fluid passage 220 separately, And is absorbed into the surrounding capillary.

As shown in FIG. 7, the cooling device according to the second embodiment of the present invention can increase the volume in the vertical direction by forming the gas space 210, compared with the first embodiment, The working fluid in the state of being separated from each other through the wick 200 to perform heat transfer and heat exchange. Therefore, the performance is improved as compared with the first embodiment of the present invention, the conventional cooling device or the heat transfer device.

[Cooling Apparatus According to Third Embodiment]

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

The third embodiment of the present invention is different from the second embodiment in the shape of the wick and the remaining components are the same, so the shape of the wick that has been changed will be mainly described.

8 shows a cross section of a third embodiment of the present invention.

As shown in FIG. 8, in the cooling apparatus according to the third embodiment of the present invention, the wick 200 may include an alignment assisting portion 201.

The alignment assisting portion 201 is for aligning the position of the wick 200 more easily when the wick 200 is disposed on the upper portion of the protruding member 110. The alignment assisting portion 201, The wick 200 is protruded downward from the lower surface of the wick 200 by a certain amount and inserted between the protruding members 110 when the wick 200 is disposed on the protruding member 110 to align the wick 200 You can play a role in supporting this.

As shown in FIG. 8, the shape of the alignment assisting portion 201 may protrude downward from the lower surface of the wick 200 to a certain extent, and may have a trapezoidal shape in which the side surface of the protruding surface is formed with a hypotenuse. However, the shape of the alignment assisting portion 201 is not limited to the trapezoidal shape shown in FIG. 8, and the alignment assisting portion 201 may be formed in various shapes.

[Cooling Apparatus According to Fourth Embodiment]

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

The cooling apparatus according to the first embodiment of the present invention shown in FIG. 5 includes a cover 300 and a heat sink 400 and a fan 500 formed on the cover 300 so that a single heat source or a single heat source It is used as cooling device for cooling. In the case of the first embodiment as shown in FIG. 5, the volume is limited as described above in the background art, but it is difficult to apply to an autonomous vehicle having a large number of heat sources (electronic devices such as radar) installed separately from each other.

9, the base 100, the wick 200, and the cover 300 are used as a kind of evaporator 50, and a plurality of evaporators 50 May be connected to a single condenser 60 as a cooling means and used. That is, the working fluid vaporized and vaporized in the flow path 11 is sent to the condenser 60 through the first pipe 51, and the condenser 60 liquefies the evaporated working fluid by cooling / condensing it, And the fluid is sent back to the flow path 11 through the second pipe 52.

9, in a cooling apparatus using a plurality of evaporators 50 and a single condenser 60, the evaporator 50 is connected to the first and second pipes 51, It may be appropriate to use the second embodiment in which the working fluid and the liquefied working fluid are separated into the gas space 210 and the flow path 110, respectively.

This method can cool / condense the working fluid vaporized in the plurality of evaporators 50 in the single condenser 60, so that the cooling device can be efficiently implemented even in a relatively small space.

10 schematically shows an autonomous vehicle 70 on which a plurality of heat sources (various sensors, radars) are installed.

10, the condenser 60 is installed at the rear of the autonomous vehicle 70, and the evaporator 50 can be installed at various sensors installed in the autonomous vehicle 70. As shown in FIG. A plurality of sensors can be attached to the autonomous vehicle 70 at various positions, but a plurality of sensors are concentrated mainly on the trunk side of the vehicle. Accordingly, the condenser 60 is installed at the rear of the vehicle, and is connected to each of the evaporators 50 installed in the sensors disposed at the rear of the vehicle, so that the heat generated by the sensors can be cooled. The evaporator 50 installed at the rear of the vehicle is represented by a single unit in FIG. 10, but may be a plurality of units, that is, the condenser 60 and the evaporator 50 installed at the rear of the vehicle may be the embodiment shown in FIG.

The evaporator 50 installed on the autonomous vehicle 70 shown in FIG. 10 is not connected to the condenser 60 installed on the rear side of the vehicle and is not connected to the evaporator 50 itself, A heat sink or a cooling device may be installed. That is, the evaporator 50 installed on the autonomous vehicle 70 is conveniently referred to as an evaporator, and is used as a cooling device of its own.

[Manufacturing method of cooling device]

Hereinafter, a method of manufacturing a cooling apparatus according to the present invention will be described in detail. First, brazing may be used in the method of manufacturing the cooling device according to the present invention. Brazing is a technique of joining metal materials or nonmetal materials to heat the joints at a temperature below the melting point of the base metal of more than 450 degrees Celsius to melt the base material and melt the base material without melting, The manufacturing method of the cooling device according to the present invention may include the first to fourth steps.

The first step is a step of inserting a filler material into the bonding surface of the base part 100 and the cover 300 or forming a filler layer. 3, the joining surface of the base part 100 and the cover 300 is inserted into the insertion part 121, the filler material is supplied to the insertion part 121, or the joining surface of the base part 100 and the cover 300 An excipient layer may be formed.

4, the wick 200 is disposed on the upper portion of the protruding member 110, and the insertion portion 121, which is defined by the protruding member 110 and the dividing frame 120, The insertion portion 310 formed on the lower surface of the cover 300 is inserted to form an assembly.

The third step is a step of applying a brazing flux to the outer surface of the assembly. The brazing flux refers to a material used to prevent oxidation of the base material, that is, the base portion 100 and the cover 300, and generally uses a brazing flux in a liquid state.

In the third step, when the brazing flux is applied in the liquid state, the brazing flux may flow into the joint between the base part 100 and the cover 300. However, as shown in FIG. 4, Since the insertion portion 121 and the protruding member 110 are partitioned from each other, the brazing flux can be prevented from flowing into the side where the protruding member 110 is located.

In the fourth step, the assembly is heated at a temperature equal to or higher than the melting point of the base portion 100 and the cover 300, and the base portion 100 and the cover 300 are bonded to each other.

When the base part 100 and the cover 300 are bonded to each other through the first to fourth steps, a cooling device according to the present invention can be manufactured by installing or adding a cooling device.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

[Description of Symbols]

10: heat source 20: housing

30: Wick 31: Steam channel

40: Fans

50: evaporator 51: first piping

52: Second piping 60: Condenser

70: Autonomous vehicle

100: base portion 110: projecting member

111: EURO 120: Compartment frame

121: insertion part 130: outer frame

200: wick 201: alignment support

210: gas space 220: fluid passage

300: cover 310:

400: Heatsink

500: Fan 510: Bracket

Claims

A base part (100) including at least one protrusion (110) formed on an upper surface thereof and contacting the heat source to receive heat;

A wick (200) covering the base portion (100) so that one surface thereof abuts an upper end of the protruding member (110) and forming a flow path (111) in which boiling and condensation of working fluid occur;

A cover 300 covering an upper portion of the base 100; And

A cooling means for cooling the working fluid vaporized and vaporized in the flow path 111;

And the cooling device.
The method according to claim 1,

Wherein the protruding member (110) protrudes upward from the upper surface of the base part (100) and extends to one side along the upper surface of the base part (100).
3. The method of claim 2,

Wherein a plurality of the projecting members (110) are arranged parallel to the upper surface of the base part (100) with a predetermined distance therebetween.
The method according to claim 1,

Wherein a plurality of the projecting members (110) are arranged on the upper surface of the base part (100) at a certain distance from each other and arranged in two dimensions.
The method according to claim 1,

The base unit 100 includes a partition frame 120 formed on an upper surface thereof and partitioning the upper surface of the protrusion member 110,

And an insertion portion (121) into which the fitting portion (310) protruding from the lower surface of the cover (300) is inserted.
6. The method of claim 5,

Wherein the partition frame (120) is formed to surround the projecting member (110).
6. The method of claim 5,

The base unit 100 further includes an outer frame 130 formed at an outer periphery of the upper surface,

Wherein the insertion portion (121) is formed between the partition frame (120) and the outer frame (130).
The method according to claim 1,

Wherein an upper end of the wick (200) is in close contact with a lower surface of the cover (300).
The method according to claim 1,

Wherein a gas space (210) is formed between the cover (300) and the wick (200), in which a vaporized working fluid is located.
10. The method of claim 9,

Wherein the lower surface of the cover (300) is spaced apart from the upper end of the wick (200) by a predetermined distance.
10. The method of claim 9,

Wherein the wick (200) includes a fluid passage (220) formed to connect the flow path (111) and the gas space (210).
The method according to claim 1,

Wherein the wick (200) comprises an alignment assisting portion (201) protruding from a lower surface and inserted between adjacent protruding members (110).
13. The method of claim 12,

Wherein the alignment assisting portion (201) has a protruded one side surface formed as an oblique surface.
The method according to claim 1,

Wherein the space between the base (100) and the cover (300) is a vacuum.
The method according to claim 1,

And a heat sink (400) formed on the outer surface of the cover (300).
The method according to claim 1,

Characterized in that the cooling means is supplied with the vaporized working fluid, cooled, condensed and liquefied, and supplies the liquefied working fluid to the flow path (111).
The method according to claim 1,

Wherein the cooling means supplies refrigerant to an outer surface of the cover (300).
A method of manufacturing a cooling device according to any one of claims 1 to 17,

A first step of inserting a filler material or forming a filler material layer on the joint surface of the base part 100 and the cover 300;

The wick 200 is disposed on the upper part of the protruding member 110 and the fitting part 310 formed on the lower surface of the cover 300 is inserted into the insertion part 121 formed in the base part 100, A second step of forming;

A third step of applying a brazing flux to the outer surface of the assembly; And

A fourth step of brazing the assembly to which the flux is applied;

Wherein the cooling device comprises a cooling device.