KR20190036382A - Cooling plate - Google Patents

Abstract

The present invention relates to a cooling plate. More particularly, when manufacturing a cooling plate for cooling a battery module used as a power source or an auxiliary power source for driving a motor of an electric vehicle and a hybrid vehicle to a predetermined temperature, a simple pressing method and a shrinkage fitting method are performed in parallel other than a general die-casting method. The deformation of a cooling pipe is prevented to prevent defects and a structure is simplified to enable quick manufacture, so that productivity is high, and deformation in various shapes is easy to increase the degree of design freedom.

Description

Cooling plate

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a cooling plate, and more particularly, to a cooling plate for cooling a battery module used as a power source or an auxiliary power source for driving an electric vehicle and a hybrid vehicle, Simplification of the structure by preventing the deformation of the cooling pipe by the simple press method and the heat-shrinking method by preventing the deformation of the cooling pipe can simplify the structure, thereby making it possible to produce the product quickly and easily. To a cooling plate.

Generally, electric vehicles and hybrid vehicles not only solve pollution problems such as noise and exhaust gas of automobiles, but also actively utilize surplus power related to energy saving and apply them as new transportation means in the future. Is being developed.

These electric vehicles and hybrid vehicles use a motor as a power source and an auxiliary power source, and a motor uses power supplied from a battery module as a power source.

On the other hand, the battery module, which is the power source of electric vehicles and hybrid vehicles, can reduce the mechanical life due to the heat cycle phenomenon when the battery temperature rises and falls for a long time. Various battery cooling apparatuses are being developed.

At this time, the battery module is usually operated in a temperature range of 25-40 ° C.

However, in the past, since the cooling device for a battery is manufactured by a die casting method capable of mass production and a relatively complicated shape, the following problems have arisen.

For example, in order to realize a cooling channel, it is necessary to perform a hollow type general die casting (die casting). In this process, deformation of a cooling channel frequently occurs, and a defect rate is high. .

In this case, if the cooling channel is deformed, a desired cooling function can not be achieved. Therefore, the efficiency problem of the battery module is directly affected. If the dimensional imbalance is less than the prescribed cooling capacity, The efficiency of the module is lowered.

To solve this problem, a precision die-casting method can be adopted, but this is not an alternative because the manufacturing cost is rapidly increasing.

Therefore, it is necessary to inspect all the castings even after the casting, so that it is difficult to produce the castings promptly and it takes a long time to manufacture them.

In addition, when it is judged to be defective, it can not be used, so it has to be disposed of, which causes a problem of cost and waste of resources.

Korea Patent Registration No. 10-1262974 (2013.05.02.) 'Cooling Case for Battery Pack' Korean Patent Registration No. 10-1750029 (June 17, 2017) 'Battery Cooling Apparatus and Method for Manufacturing the Same' Korean Patent Registration No. 10-1761676 (Jul. 20, 2017) 'Cooling Device for Battery' Korean Patent Registration No. 10-1761678 (July 20, 2007) 'Manufacturing Method of Battery Cooling Device'

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems in the prior art, and it is an object of the present invention to provide a cooling module for cooling a battery module used as a power source or an auxiliary power source for driving an electric vehicle and a hybrid vehicle, It is possible to simplify the structure by simplifying the structure while preventing the deformation of the cooling pipe by preventing the deformation of the cooling pipe by using the simple press method and the heat shrinking method in parallel with the general die casting method. And a cooling plate that can be easily deformed to increase the degree of freedom of design.

As a means for achieving the above object,

A plate housing (100) for cooling a cooled object formed by a general die casting method in accordance with the shape of a cooling object to be seated;

A pipe insertion groove 110 having a predetermined shape formed by a path through which the cooling fluid flows by pressing the plate housing 100;

And a cooling pipe (120) bent in a shape corresponding to the pipe insertion groove (110) and embedded in the pipe insertion groove (110) to flow the cooling fluid.

The cooling plate of the present invention has a structure in which a pipe insertion groove is formed in a plate housing by a press method and a cooling pipe is inserted into the pipe insertion groove. Structure can be provided. This can provide a structure capable of improving the cooling efficiency by minimizing the heat conduction distance between the cooling fluid and the object to be cooled, and can easily cope with the shape and area of the object to be cooled by a simple manufacturing method and high degree of structural deformation.

The cooling pipe 120 may include a pipe extrusion process for extruding a metal material having excellent thermal conductivity to form a pipe shape, an inorganic binder filling process for filling an inner diameter of an extruded pipe with an inorganic binder, And is also manufactured through a bending process in which the bending process is performed in accordance with the shape of the pipe insertion groove 110.

The pipe insertion groove 110 may be formed by pressing the bottom surface of the plate housing 100 in the direction of the bottom surface so that the groove is positioned on the back surface and the protruding portion is formed on the bottom surface, So that the groove is located on the bottom surface and the protruding portion is located on the back surface.

Also, the cross-sectional shape of the pipe insertion groove 110 and the cooling pipe 120 inserted into the pipe insertion groove 110 is semicircular and correspondingly circular or both rectangular.

The cooling pipe 120 is further fixed to a portion of the pipe insertion groove 110 through which the cooling pipe 120 is inserted by a thermally conductive tape or a separation preventing member for preventing the cooling pipe 120 from being separated from the cooling pipe 120 .

The bottom surface of the plate housing 100 is also provided with a thermally conductive watertight plate for horizontal holding.

Further, a thermally conductive material is filled between the bottom surface of the plate housing 100 and the thermally conductive waterproof plate.

Also, the thermally conductive material is a polyolefin-based paste including IDP (Inherently Dissipative Polymer), aluminum oxide, boron nitride and aluminum nitride so as to exhibit antistatic function while reducing humidity dependency.

In addition, a latent water flat plate is additionally provided on the bottom surface of the plate housing 100 to keep it horizontal, and the latent water flat plate is formed by adding 15 wt% of glacial acetic acid and 70 wt% of lithium bromide (LiBr ), 5% by weight of paraffin as a phase change material, 5% by weight of 2-mm-long tin-coated microcellulose having a cooling property and the remaining water-soluble polyurethane resin were formed into a plate There are also features.

The method of fixing the cooling pipe 120 to the pipe insertion groove 110 is as follows: (1) Pressing the cooling pipe 120 while heating the plate housing 100 formed with the pipe insertion groove 110 (2) After inserting the cooling pipe 120 into the pipe insertion groove 110 with the thermally conductive paste applied to the outer surface of the pipe insertion groove 110 or the cooling pipe 120 (3) a method in which a thermally conductive pad in the form of a film is laid on the pipe insertion groove 110, and a cooling pipe 120 is inserted thereinto and is fixed to a release preventing bracket (4) In a state where the heated cooling pipe 120 is inserted into the pipe insertion groove 110, the high-pressure compressed air is instantaneously blown into the cooling pipe 120 so that the cooling pipe 120 is expanded One of the fixed Also it has its features.

Further, the inside diameter of the cooling pipe 120 is also characterized in that a scratch is artificially formed to widen the contact area.

The scratches are also characterized by a concavo-convex shape, a protruding shape, or fine sucking by etching or sanding.

According to the present invention, the following effects can be obtained.

First, since the cooling pipe for cooling channel is inserted and fixed in the form of heat shrink after forming the shape by pressing, it is easy to manufacture.

Secondly, it is easy and simple to work, which makes it possible to produce quickly.

Third, there is no deformation of the cooling channel, no defects are produced, and the product quality is improved.

Fourthly, it can be manufactured at low cost, and if the shape of pressing is changed only, the shape of the cooling channel can be easily changed, and the degree of freedom of design is increased.

Fifth, since the cooling pipe of the predetermined dimension is fixedly inserted, the dimension of the cooling channel is not bad, and the battery module can be properly cooled to the specified temperature range. That is, the cooling ability is not lowered.

1 is an exemplary view of a cooling plate manufactured according to the manufacturing method according to the first embodiment of the present invention.
Fig. 2 is an exemplary view showing the shape of the back surface of Fig. 1. Fig.
3 is an exemplary view of a cooling plate manufactured according to the manufacturing method according to the second embodiment of the present invention.
Fig. 4 is an exemplary view showing the back surface shape of Fig. 3. Fig.
5 is an exemplary view of a cooling plate manufactured according to the manufacturing method according to the third embodiment of the present invention.
Fig. 6 is an exemplary view showing the back surface shape of Fig. 5. Fig.
7 is an exemplary view of a cooling plate manufactured according to the manufacturing method according to the fourth embodiment of the present invention.
8 is an exemplary view showing the back surface shape of FIG.
9 is an exemplary sectional view showing the endurance structure of a cooling pipe according to the embodiments of the present invention.

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

Before describing the present invention, the following specific structural or functional descriptions are merely illustrative for the purpose of describing an embodiment according to the concept of the present invention, and embodiments according to the concept of the present invention may be embodied in various forms, And should not be construed as limited to the embodiments described herein.

In addition, since the embodiments according to the concept of the present invention can make various changes and have various forms, specific embodiments are illustrated in the drawings and described in detail herein. However, it should be understood that the embodiments according to the concept of the present invention are not intended to limit the present invention to specific modes of operation, but include all modifications, equivalents and alternatives falling within the spirit and scope of the present invention.

[First Embodiment]

Prior to the method of manufacturing the cooling plate according to the present invention, the shape and structure of the cooling plate to be manufactured will be described first.

For example, as shown in FIGS. 1 and 2, the cooling plate manufactured by the manufacturing method according to the present invention is formed of a metal material so as to ensure durability, safety, and stability, And a box-shaped plate housing 100 opened at an upper portion thereof for seating the battery module.

That is, the plate housing 100 constituting the outer shape of the cooling plate is simplified.

This plate housing 100 can be implemented in a variety of ways, but it is most preferred to be manufactured in a general die casting fashion.

This is because, unlike the conventional hollow die casting, there is no need to die cast to the cooling channel.

Here, the plate housing 100 is illustrated as a box shape having an open top, but may be varied depending on the shape of the object to be cooled.

In other words, it can be modified into various shapes according to the shape of the object to be cooled, such as a cylindrical shape, a flat plate shape, and a disk shape, as well as a box shape.

A pipe insertion groove 110 having a semicircular cross section is protruded from the bottom surface of the plate housing 100.

2, a pipe insertion groove 110 having a semicircular cross section is formed on the bottom surface of the plate housing 100 so as to have a closed shape as shown in FIG. 1 .

The pipe insertion groove 110 is formed by press forming as described later.

In addition, a cooling pipe 120 is embedded in the pipe insertion groove 110 in a shape corresponding thereto.

At this time, it is preferable that the cooling pipe 120 is fixed by a heat shrinking method, so that the depth of the pipe insertion groove 110 should be larger than the diameter of the cooling pipe 120.

The cooling plate manufacturing method according to the first embodiment of the present invention having the above-described structure is as follows.

First, a step of manufacturing the plate housing 100 according to the shape of a cooling object to be mounted is performed.

Preferably, the step of fabricating the plate housing 100 is molded through a general die casting process.

In this case, it should be noted that the present invention is never molded by a hollow die casting method.

That is, since the conventional die-casting method is a method of molding die casting together with the cooling channel, the defective rate such as dimensional deformation and clogging of the cooling channel is very high as described above. Therefore, in the present invention, Since the plate housing 100 is formed by a general die casting method, it can be manufactured quickly, and the plate housing 100 itself does not require precise dimensions.

Thus, when the plate housing 100 is manufactured, a step of forming the pipe insertion groove 110 in the plate housing 100 is performed.

The pipe insertion groove 110 is formed at one time by a press-pressing method. That is, it is formed by the pressure of the press.

At this time, it is preferable that the pipe insertion groove 110 is formed in a semicircular shape, and it is preferable that the pipe insertion groove 110 is pressed on the back surface of the plate housing 100 and protruded toward the bottom surface, as shown in FIGS.

2, a pipe insertion groove 110 is formed as a groove on the back surface of the plate housing 100. When viewed from a bottom surface of the plate housing 100, a pipe having a semicircular cross- The insertion groove 110 has a protruding shape.

The cooling object, such as the battery module, is seated on the bottom surface of the plate housing 100.

As described above, according to the present invention, the plate housing 100, which is die-cast in a predetermined shape, can be simply formed by simply pressing the plate housing 100, Thereby providing an advantage that it can be accurately formed.

Of course, the pipe insertion groove 110 may be deformed to be recessed or protruded in the direction opposite to FIGS. 1 and 2, which will be described later in another embodiment.

In the first embodiment of the present invention, as shown in FIGS. 1 and 2, a plurality of pipe insertion grooves 110 may be arranged in the longitudinal direction of the plate housing 100, And the other one arranged in the width direction of the plate housing 100 forms a pair.

In addition, the arrangement of the pipe insertion grooves 110 may be configured such that two pairs of the pipe insertion grooves 110 are parallel to each other in the longitudinal direction of the plate housing 100.

Further, the arrangement of the pipe insertion grooves 110 may be such that two of the pipe insertion grooves 110 are separated from each other in the width direction of the plate housing 100 so as to be parallel to each other.

In addition, the arrangement shapes of the pipe insertion grooves 110 may be formed to have a plurality of pairs arranged in the same or different directions, It is possible to provide a gradient by varying the cooling temperature of the cooling water to be circulated through the cooling pipe 120 buried in the cooling pipe 120, thereby providing convenience and easiness in controlling the cooling temperature.

Thereafter, the cooling pipe 120 installation step is performed.

The step of installing the cooling pipe 120 is a step of embedding and fixing the cooling pipe 120 constituting the cooling channel in the pipe insertion groove 110 by a heat shrinking method.

In this case, the diameter of the pipe insertion groove 110 and the diameter of the cooling pipe 120 should be the same for heat shrinking, but the depth of the pipe insertion groove 110 is formed to be larger than the diameter of the cooling pipe 120 The cooling pipe 120 should be shrunk in a completely buried form.

In addition, the heat shrinking can be performed by pressing the cooling pipe 120 while heating the plate housing 100 in which the pipe insertion groove 110 is formed. In order to increase the heat shrinking efficiency, the cooling pipe 120 is cooled It can also be pressed by pressing in one state.

In this manner, the cooling plate according to the present invention is completed by providing the cooling pipe 120.

At this time, since the cooling pipe 120 must be machined according to the shape of the pipe insertion groove 110, it is manufactured through the following process.

That is, the cooling pipe 120 includes a pipe extrusion process for extruding a metal material having excellent thermal conductivity to form a pipe shape, an inorganic binder filling process for filling an inner diameter of the extruded pipe with an inorganic binder, And is manufactured through a bending process to bend the pipe in accordance with the shape of the pipe insertion groove 110.

Herein, the reason for filling the inorganic binder in the inorganic binder filling process is to suppress the deformation when bending the pipe, in particular, to prevent the dimensional defect due to the deformation of the bending portion.

In this case, preferred examples of the inorganic binder include sand, and after the banding is completed, an inorganic binder, such as sand, may be taken out.

In addition, the method of filling the inorganic binder is to make the both ends of the pipe longer than the specified length, and to make a margin, the one end is closed with the mage, the inorganic binder is filled and the other end is closed. Then, after the molding is finished, each end is cut out according to the prescribed length, and then the sand is taken out.

Further, in order to prevent deformation even in the case of heat shrinking, it is preferable to heat shrink in the state where the inorganic binder is filled.

In addition, not only during bending molding but also during heat shrinking, the mage prevents the inorganic binder from flowing out, which is not an obstacle in molding.

In addition, in the case of embedding and fixing by heat shrinking method, the open portion of the pipe insertion groove 110 is formed with a thermally conductive adhesive tape so as to be able to completely isolate and release the cooling pipe 120, Or may be further fixed with a release preventing member or the like.

As described above, the cooling plate manufacturing method according to the present invention is characterized in that deformation of the cooling channel is not caused as compared with the conventional hollow die casting, so that it is possible to manufacture the cooling plate quickly, conveniently and easily while preventing defects.

In addition, the manufacturing process is simple and the manufacturing cost is also reduced.

In another modification, the bottom surface of the plate housing 100 may have a thermally conductive flat plate so as to be flattened so that the object to be cooled can be arranged in a horizontal plane.

This is because the pipe insertion groove 110 has a rugged shape as it protrudes, so that it is flattened. Further, a thermally conductive flat plate is used in order to make the thermal conductivity uniform and uniform over the entire surface.

At this time, a space between the pipe insertion grooves 110 may be filled with a thermally conductive material. That is, a structure in which the thermally conductive flat plate is seated and fixed on the thermally conductive material filled with the thermally conductive material can be obtained.

In this case, the thermally conductive material may be an inherently dissipative polymer (IDP), a polyolefin-based paste containing aluminum oxide, boron nitride, and aluminum nitride so as to exhibit antistatic function while reducing humidity dependence.

In addition, a thermally conductive flat plate may be used instead of the thermally conductive flat plate.

The latent electrostatic flat plate is a plate which keeps the cooling property during cooling for a long time. The plate is composed of 30% by weight of an aqueous solution obtained by dissolving 15% by weight of glacial acetic acid and 15% by weight of lithium bromide (LiBr) 5% by weight of paraffin which is a phase change material, 5% by weight of 2-mm long tin-coated microcellulose having a cold-cooling property and the remaining liquid of a water-soluble polyurethane resin.

In this case, glacial acetic acid has a characteristic of freezing at 14.5 ° C or higher at room temperature, thereby enhancing the cooling performance. Lithium bromide is added to the system because it is highly hygroscopic and attracts moisture to the surroundings to increase the cooling performance.

The paraffin has a latent heat characteristic as a typical phase-change material, and the microstructure of the microspheres has a large heat retention, so that the paraffin has a property of strengthening the cooling property even during cooling, thereby contributing to the latent heat flat plate function.

On the other hand, in the case of the second embodiment to be described later, the pipe insertion groove 110 is formed by pressing the bottom surface in the back direction, and the cooling pipe 120 is embedded and fixed therein. Is formed larger than the diameter of the cooling pipe (120). Therefore, even if the object to be cooled is seated on the floor surface, the cooling pipe 120 is not pressed directly, thereby preventing pipe deformation.

Therefore, the cooling pipe 120 can not be in direct contact with the object to be cooled and an empty space, that is, an air layer can be formed. Accordingly, in the present invention, the conductive paste is filled in the upper surface of the pipe insertion groove 110 in which the cooling pipe 120 is inserted, and heated and integrated to planarize, thereby improving the heat conduction efficiency by eliminating the air layer.

[Second Embodiment]

The second embodiment according to the present invention is different from the second embodiment only in the direction in which the pipe insertion groove 110 is formed as in the example of FIGS. 3 and 4, and the remaining structures and modifications are the same as those of the first embodiment described above.

That is, according to the second embodiment of the present invention, when the pipe insertion groove 110 is formed, the plate is pressed from the bottom face toward the back face of the plate housing 100 so that the groove is formed on the bottom face, The only difference is that the parts are made to be formed on the backside.

[Third Embodiment]

5 and 6, the third embodiment differs from the first embodiment only in that the shape of the pipe insertion groove 110 and the cooling pipe 120 to be embedded therein is rectangular, The same as the first embodiment described above.

That is, in the third embodiment of the present invention, when the pipe insertion groove 110 is formed, the cooling pipe 120 is pressed to have a rectangular cross section instead of a semicircular cross-section, and the cooling pipe 120 having the corresponding shape is fired.

[Fourth Embodiment]

7 and 8, the fourth embodiment differs from the first embodiment only in that the shape of the pipe insertion groove 110 and the cooling pipe 120 to be embedded therein is rectangular, 2 embodiment.

That is, the fourth embodiment of the present invention is implemented by pressing the cooling pipe 120 having a rectangular cross section instead of a semicircular cross-section when the pipe insertion groove 110 is formed, When the pipe insertion groove 110 is formed, pressing is performed from the bottom surface of the plate housing 100 toward the back surface so that the groove is formed on the bottom surface and the protruding portion having a rectangular cross section is formed on the back surface.

[Fifth Embodiment]

The fifth embodiment according to the present invention shows an example in which the method of fixing the cooling pipe 120 to the pipe insertion groove 110 is implemented differently from the above-described embodiments.

That is, in the first, second, third, and fourth embodiments, the cooling pipe 120 is embedded in the pipe insertion groove 110 and is fixed by embedding. However, in the fifth embodiment of the present invention, The cooling pipe 120 is inserted into the pipe insertion groove 110 in a state where the thermally conductive paste is applied to the outer surface of the groove 110 or the cooling pipe 120. By heating the pipe with the heating chamber in this state, And the paste is melted and fixed by a kind of bonding method.

This makes it possible to further simplify the processes and facilities since there is no need to provide additional facilities required for heat shrinkage.

[Sixth Embodiment]

The sixth embodiment according to the present invention shows an example in which the method of fixing the cooling pipe 120 to the pipe insertion groove 110 is implemented differently from the above-described embodiments.

That is, in the first, second, third, and fourth embodiments, the cooling pipe 120 is embedded in the pipe insertion groove 110 and is fixed by embedding. However, in the sixth embodiment of the present invention, A thermally conductive pad in the form of a film is laid on the groove 110 and the cooling pipe 120 is inserted on the pad.

In this case, the thermally conductive pad may be laid on only a part of a section, or may be spread over an entire section, and may be modified into various forms depending on the object to be cooled. In addition, such conductive pad insertion can be applied to both of a heat shrinking method, a paste applying method, and an expanding method by compressed air. This modification can be applied when intensive cooling is required.

In particular, the thermally conductive pad is designed to prevent the thermal conductivity from being lowered when deformation of contact force is reduced during long-term use. At this time, the thermally conductive pad is implemented with a flexible material, and can perform a sound absorbing function for absorbing shock absorption and noise.

In addition, it is also possible to fix the open upper left and right sides of the pipe insertion groove 110 to the center without using the release preventing bracket. This is possible because, as described above, the pipe is not easily deformed even when the inorganic finder is filled in the pipe even if it is pressurized.

[Seventh Embodiment]

The seventh embodiment according to the present invention shows an example in which the method of fixing the cooling pipe 120 to the pipe insertion groove 110 is implemented differently from the above-described embodiments.

That is, in the first, second, third, and fourth embodiments, the cooling pipe 120 is embedded in the pipe insertion groove 110 and is fixed by embedding. However, in the seventh embodiment of the present invention, In a state where the heated cooling pipe 120 is inserted into the groove 110, the high-pressure compressed air is blown into the cooling pipe 120 instantaneously to instantaneously expand the cooling pipe 120, Yes.

In this case, the inorganic binder should not be filled. Therefore, the cooling pipe is inserted with the inorganic binder filled, the inorganic binder is removed, and the compressed air is blown in to expands.

As such, the present invention can be modified into various forms.

In addition, the inside of the cooling pipe 120 used in the embodiments of the present invention may be modified to have a cross-sectional shape as shown in Fig.

For example, as shown in FIG. 9 (a), the concave and convex portions 122 may be formed on the inner diameter of the cooling pipe 120.

At this time, when the cooling pipe 120 is extruded, the concave-convex part 122 can be formed linearly at the same time as extrusion so as to have a specific shape, which is considered to be a kind of arbitrary scratch.

This can be a variety of shapes, such as triangular, square, etc., and can be sparsely formed entirely or partially on the inner circumferential surface.

9 (b), the protrusion 124 may be formed, or the fine scratch 126 may be deliberately formed by etching or sanding as shown in FIG. 9 (c).

As a result, the internal cross-sectional area of the cooling pipe 120 can be increased, which increases the internal contact area when the cooling water flows, thereby improving the thermal conductivity, thereby enhancing the cooling effect.

In addition, such an inner diameter scratch can also have an effect of preventing deformation due to reduction in diameter or the like when forming or bending to make the cooling pipe 120.

100: Plate housing
110: Pipe insertion groove
120: cooling pipe

Claims (11)

A plate housing (100) for cooling a cooled object formed by a general die casting method in accordance with the shape of a cooling object to be seated;
A pipe insertion groove 110 having a predetermined shape formed by a path through which the cooling fluid flows by pressing the plate housing 100;
And a cooling pipe (120) bent in a shape corresponding to the pipe insertion groove (110) and embedded in the pipe insertion groove (110) so that the cooling fluid flows.
Wherein the inner diameter of the cooling pipe (120) is artificially formed with a scratch to widen the contact area.
The method according to claim 1,
The cooling pipe 120 may include a pipe extrusion process for extruding a metal material having excellent thermal conductivity to form a pipe shape having scratches on the inner diameter, an inorganic binder filling process for filling the inner diameter of the pipe with the inorganic binder, Wherein the pipe is manufactured by bending the pipe in accordance with the shape of the pipe insertion groove.
The method according to claim 1,
The pipe insertion groove 110 is pressed in the direction of the bottom surface of the plate housing 100 so that the groove is positioned on the back surface and the protruding portion is formed on the bottom surface or pressed in the back surface direction from the bottom surface, Is positioned on the bottom surface and the protruding portion is formed on the back surface.
The method of claim 3,
Wherein the cross-sectional shape of the pipe insertion groove (110) and the cooling pipe (120) inserted into the pipe insertion groove (110) is a semicircular shape and a circular shape or both square shape corresponding thereto.
The method of claim 3,
Wherein the cooling pipe (120) is further fixed to a portion of the pipe insertion groove (110) where the cooling pipe (120) is inserted, with a thermally conductive tape or a separation preventing member for preventing the cooling pipe (120) from separating away.
The method according to claim 1,
And a thermally conductive water level plate is further provided on the bottom surface of the plate housing to maintain the water level.
The method of claim 6,
And a thermally conductive material is filled between the bottom surface of the plate housing (100) and the thermally conductive water flat plate.
The method of claim 7,
Wherein the thermally conductive material is a polyolefin-based paste comprising an IDP (Inherently Dissipative Polymer), aluminum oxide, boron nitride, and aluminum nitride so as to exhibit antistatic function while reducing humidity dependence.
The method according to claim 1,
The latent water flat plate is composed of 15% by weight of glacial acetic acid, and 15% by weight of lithium bromide (LiBr) 15 in 70% by weight of water, in the bottom surface of the plate housing 100, , A composition liquid composed of 30% by weight of an aqueous solution obtained by dissolving 5% by weight of water, 5% by weight of paraffin as a phase change material, 5% by weight of 2 mm length of microspheres of microspheres having a cooling property, and the remaining water-soluble polyurethane resin, Cooling plate.
The method according to claim 1,
Characterized in that the cooling pipe (120) is fixed to the pipe insertion groove (110) by any one of the following methods.
(1) A heat-shrinking method of inserting and fixing the cooling pipe 120 in a form of pressing while heating the plate housing 100 formed with the pipe insertion groove 110
(2) The cooling pipe 120 is inserted into the pipe insertion groove 110 with the thermally conductive paste applied to the outer surface of the pipe insertion groove 110 or the cooling pipe 120, How to melt and fix paste
(3) A method in which a film-type thermally conductive pad is laid on the pipe insertion groove 110 and the cooling pipe 120 is inserted thereinto,
(4) A method of instantaneously blowing high-pressure compressed air into the cooling pipe 120 in a state where the heated cooling pipe 120 is inserted into the pipe insertion groove 110 to thereby expand and fix the cooling pipe 120 .
The method according to claim 1,
Wherein the scratch is one of a concavo-convex shape or a protruding shape, or a fine sucking by etching or sanding.

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