CN216592927U - Heat pipe - Google Patents

Abstract

The utility model discloses a heat pipe, which comprises a first combination part and a second combination part, wherein the first combination part comprises a first substrate, the lower surface of the first substrate is provided with a first spraying layer, the lower surface of the first substrate is sprayed with metal to form the first spraying layer, the first substrate and the first spraying layer are pressed to form the first combined part, the bottom surface of the first spraying layer is sequentially provided with a first groove, a second groove and a third groove from front to back, the left end of the first groove, the left end of the second groove and the left end of the third groove are communicated, the right end of the first groove, the right end of the second groove and the right end of the third groove are communicated, the second combination part comprises a second substrate, the upper surface of the second substrate is provided with a second spraying coating, and the upper surface of the second substrate is subjected to metal spraying to form a second spraying layer, and the second substrate and the second spraying layer are pressed to form the second combined part. The utility model has the advantages of rapid heat transfer and conduction, durability, long service life and the like.

Description

Heat pipe

Technical Field

The utility model belongs to the technical field of the heat-conducting device, concretely relates to heat pipe.

Background

The existing heat pipe is mainly composed of a sealed metal pipe body, a capillary structure in the metal pipe body and a heat transfer fluid filled in the metal pipe body, and the heat transfer fluid and the metal pipe body are kept in proper vacuum degree to reduce the temperature difference of the starting of the heat pipe.

SUMMERY OF THE UTILITY MODEL

The utility model provides a heat pipe with long service life, which solves the disadvantages in the prior art.

In order to solve the technical problem, the utility model adopts the following technical scheme:

a heat pipe, comprising:

the first combination part comprises a first substrate, a first spraying layer is arranged on the lower surface of the first substrate, a first spraying layer is formed on the lower surface of the first substrate through metal spraying, the first substrate and the first spraying layer are pressed to form the first combination part, a first groove, a second groove and a third groove are sequentially arranged on the bottom surface of the first spraying layer from front to back, the left end of the first groove, the left end of the second groove and the left end of the third groove are communicated, the right end of the first groove, the right end of the second groove and the right end of the third groove are communicated, the second combination part comprises a second substrate, a second spraying layer is arranged on the upper surface of the second substrate, a second spraying layer is formed on the upper surface of the second substrate through metal spraying, the second substrate and the second spraying layer are pressed to form the second combination part, a fourth groove is sequentially formed on the top surface of the second spraying layer from front to back, The left end of the fourth groove, the left end of the fifth groove and the left end of the sixth groove are communicated, the right end of the fourth groove, the right end of the fifth groove and the right end of the sixth groove are communicated, the first groove, the second groove and the third groove are sequentially buckled on the fourth groove, the fifth groove and the sixth groove, the first combination part is buckled on the second combination part, the edge of the first combination part, which is contacted with the second combination part, is connected, the first groove and the fourth groove are encircled into a first cavity, the second groove and the fifth groove are encircled into a second cavity, the third groove and the sixth groove are encircled into a third cavity, the left end of the first cavity, the left end of the second cavity and the left end of the third cavity are communicated, the right end of the first cavity, the right end of the second cavity and the right end of the third cavity are communicated, and a first liquid absorption core and a second liquid absorption core are respectively arranged in the first chamber and the third chamber, and fluid is filled in the first liquid absorption core and the second liquid absorption core.

Preferably, the first substrate and the second substrate are both made of a rigid heat conducting material.

Preferably, the first sprayed layer and the second sprayed layer are both composed of a plurality of layers of metal particles or powder, and the metal particles or powder are both made of heat conducting materials.

Preferably, the diameter of the metal particles is 2 to 100 μm.

Adopt above-mentioned technical scheme, the utility model discloses following beneficial effect has:

(1) the utility model discloses a first base plate and second base plate adopt the rigidity heat conduction material to make, then carry out metal spraying on first base plate and the second base plate that the rigidity heat conduction material was made and obtain first spraying layer and second spraying layer, and finally make the heat pipe, the utility model discloses a heat pipe is because the rigidity heat conduction material is made, and hardness is big, compares with the heat pipe that materials such as pure copper were made among the prior art, and the texture is hard, durable, and life is more durable, and the cost is lower, and first spraying layer and second spraying layer also are made by the heat conduction material, can transmit heat conduction rapidly;

(2) the utility model discloses a metal spraying and with the border pressfitting at first base plate and second base plate finally make the heat pipe, and the heat pipe thickness scope of making is 0.1mm-0.5mm, and the thickness of heat pipe among the prior art is mostly 2mm to 200mm, is not suitable for in future being applied to lighter thinner electronic equipment, the utility model discloses a heat pipe thickness scope of making is only 0.1mm-0.5mm, and thickness is little, is applicable to in lighter thinner electronic equipment, and the application scene is wide;

to sum up, the utility model has the advantages of can transmit heat rapidly and conduct heat, durable, long service life, thickness are thin etc.

Drawings

Fig. 1 is a schematic structural view of the first substrate and the second substrate of the present invention when the edges are not pressed together;

FIG. 2 is a schematic view of the structure of FIG. 1 when the edges of the first and second substrates are pressed together;

FIG. 3 is a cross-sectional view taken in the direction A-A of FIG. 2;

FIG. 4 is a bottom view of the first sprayed layer of FIG. 1;

fig. 5 is a top view of the second sprayed layer of fig. 1.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention.

The components of the embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.

Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-5, in a first embodiment of the present invention, a heat pipe of the present invention comprises;

the first combination part comprises a first substrate 1, a first spraying layer 2 is arranged on the lower surface of the first substrate 1, a first spraying layer 2 is formed on the lower surface of the first substrate 1 through metal spraying, the first substrate 1 and the first spraying layer 2 are pressed to form the first combination part, a first groove 3, a second groove 4 and a third groove 5 are sequentially arranged on the bottom surface of the first spraying layer 2 from front to back, the left end of the first groove 3, the left end of the second groove 4 and the left end of the third groove 5 are communicated, the right end of the first groove 3, the right end of the second groove 4 and the right end of the third groove 5 are communicated, the second combination part comprises a second substrate 6, a second spraying layer 7 is arranged on the upper surface of the second substrate 6, a second spraying layer 7 is formed on the upper surface of the second substrate 6 through metal spraying, the second substrate 6 and the second spraying layer 7 are pressed to form the second combination part, a fourth groove 8, a fifth groove 9 and a sixth groove 10 are sequentially formed in the top surface of the second spray coating layer 7 from front to back, the left end of the fourth groove 8, the left end of the fifth groove 9 and the left end of the sixth groove 10 are communicated, the right end of the fourth groove 8, the right end of the fifth groove 9 and the right end of the sixth groove 10 are communicated, the first groove 3, the second groove 4 and the third groove 5 are sequentially buckled on the fourth groove 8, the fifth groove 9 and the sixth groove 10, the first combination part is buckled on the second combination part, the edge of the first combination part, which is contacted with the second combination part, is connected, the first groove 3 and the fourth groove 8 are encircled to form a first cavity 11, the second groove 4 and the fifth groove 9 are encircled to form a second cavity 12, and the third groove 5 and the sixth groove 10 are encircled to form a third cavity 13, the left end of first cavity 11, the left end of second cavity 12 and the left end homogeneous phase of third cavity 13 communicate, the right-hand member of first cavity 11, the right-hand member of second cavity 12 and the right-hand member homogeneous phase of third cavity 13 communicate, be equipped with first imbibition core and second imbibition core in first cavity 11 and the third cavity 13 respectively, first imbibition core and second imbibition core intussuseption are filled with fluid, adopt the operation of evacuation in the second cavity 12, keep the vacuum of a certain degree, first cavity 11, second cavity 12 and third cavity 13 are cut apart for the middle part (separate with baffle 14, also be the part of laminating in the middle of first spraying layer 2 and second spraying layer 7), and the left and right sides both ends are communicating structure respectively, the utility model discloses a first recess 3, second recess 4, third recess 5, fourth recess 8, fifth recess 9 and sixth recess 10 all adopt laser sculpture, Etching or other forms, any forms of the first groove 3, the second groove 4, the third groove 5, the fourth groove 8, the fifth groove 9 and the sixth groove 10 should be covered in the protection scope of the present invention, wherein the connection of the edge where the first combination portion contacts with the second combination portion can be through press connection, welding or other forms, any forms of the connection of the first combination portion and the second combination portion should be covered in the protection scope of the present invention, the left end of the first chamber 11, the left end of the second chamber 12 and the left end of the third chamber 13 of the present invention are communicated with each other to form an annular flow passage, the right end of the first chamber 11, the right end of the second chamber 12 and the right end of the third chamber 13 of the present invention are communicated with each other to form an annular flow passage, the first liquid absorption core and the second liquid absorption core are also capillary structures, the first liquid absorption core and the second liquid absorption core can be independent constituent units and are installed in the first chamber 11 and the third chamber 13, or the first groove 3, the second groove 4, the fifth groove 9 and the sixth groove 10 can be formed in a laser engraving, etching or other mode, the first liquid absorption core and the second liquid absorption core directly form a part of the first groove 3 and the second groove 4 or the fifth groove 9 and the sixth groove 10, namely the first liquid absorption core and the second liquid absorption core in the first groove 3 and the second groove 4 or the fifth groove 9 and the sixth groove 10 are capillary porous structures instead of through grooves, and a plurality of microporous micro-cores and other structures can be arranged in the first liquid absorption core and the second liquid absorption core.

The first substrate 1 and the second substrate 6 are both made of rigid heat conductive material, such as stainless steel or other metal alloy material.

The first sprayed layer 2 and the second sprayed layer 7 are both composed of a plurality of layers of metal particles or powder, the metal particles or powder are both made of heat conducting materials, and the metal particles or powder are copper particles or powder.

The diameter of the metal particles is 2-100 μm.

The specific preparation method of the heat pipe of the utility model comprises the following steps:

(1) the method comprises the steps of preparing a first substrate 1 and a second substrate 6 from rigid heat conduction materials, then respectively carrying out shielding treatment on the upper surface, the left side surface, the front side surface, the right side surface and the back side surface of the first substrate 1, carrying out shielding treatment on the lower surface, the left side surface, the front side surface, the right side surface and the back side surface of the second substrate 6, exposing the areas of the first substrate 1 and the second substrate 6 which need metal spraying, namely, the areas which do not need metal spraying, and exposing the areas which need metal spraying, wherein the shielding treatment can be realized by fixing the first substrate 1 and the second substrate 6 on a shielding jig, covering the areas of the first substrate 1 and the second substrate 6 which do not need metal spraying by the shielding jig, exposing the areas which need metal spraying, wrapping the first substrate 1 and the second substrate 6 by using thin layer materials, and removing the thin material corresponding to the areas which need metal spraying treatment by using equipment such as a laser engraving machine, thereby exposing the area needing metal spraying, the utility model does not limit the shielding treatment method;

(2) performing surface roughening treatment on the lower surface of the first substrate 1 and the upper surface of the second substrate 6 in the step (1);

(3) performing metal spraying on the lower surface of the first substrate 1 subjected to the surface roughening treatment in the step (2) and the upper surface of the second substrate 6 to form a first spraying layer 2 and a second spraying layer 7 respectively, wherein the metal spraying comprises thermal spraying and cold spraying, wherein the thermal spraying is a technology that a powdery or filamentous metal or nonmetal material is heated to a molten or semi-molten state by using a certain heat source (such as an electric arc, plasma spraying or combustion flame, and the like), and then is sprayed to the surface of the treated substrate at a certain speed by means of high-speed gas to deposit and form a surface coating with various functions; cold spraying means that metal particles are not melted in the whole spraying process, compressed air is utilized to accelerate the metal particles, the metal particles are flattened on the surface of a base body and are firmly attached, in the embodiment, the material of the coating layer is made of heat conduction materials, the first spraying layer 2 and the second spraying layer 7 are formed by metal spraying, and in addition, the material of the coating layer can also comprise different mixed materials, so that the coating layer has one or more performances of wear resistance, corrosion resistance, oxidation resistance, high strength, high density, high melting point, high hardness, good gloss, good ductility and the like while obtaining heat conduction performance, and can meet different requirements;

(4) performing laminating treatment on the first substrate 1 and the first spraying layer 2 which are subjected to metal spraying in the step (3), and performing laminating treatment on the second substrate 6 and the second spraying layer 7 which are subjected to metal spraying in the step (3);

(5) grooves are respectively arranged on the bottom surface of the first spraying layer 2 and the top surface of the second spraying layer 7, then a first groove 3, a second groove 4 and a third groove 5 are formed on the bottom surface of the first spraying layer 2, a fourth groove 8, a fifth groove 9 and a sixth groove 10 are formed on the top surface of the second spraying layer 7, the first groove 3, the second groove 4, the third groove 5, the fourth groove 8, the fifth groove 9 and the sixth groove 10 of the utility model are not limited in specific shapes, can be made into various patterns according to requirements and can form backflow after being mutually matched for use, a first liquid absorbing core is arranged in a first chamber 11, a second liquid absorbing core is arranged in a third chamber 13, a proper vacuum degree can be kept in the second chamber 12, and gas can circulate in the second chamber 12, and a certain shape can be made inside the first spraying layer 2 and the second spraying layer 7 to form a certain channel, satisfy the demand, when using the utility model discloses an one end is the evaporating end other end and is the condensation end, and during normal use, the fluid in the first imbibition core of evaporating end and the second imbibition core absorbs heat and becomes gas and gets into in the second cavity 12 and reach the condensation end along second cavity 12, and this gas becomes liquid again and gets into in first imbibition core and the second imbibition core and flow back to the evaporating end;

(6) aligning the first spray coating layer 2 on the first substrate 1 subjected to grooving in the step (5) with the second spray coating layer 7 on the second substrate 6, so that the spray coating layer of the first substrate 1 is buckled on the second spray coating layer 7 on the second substrate 6, and the first groove 3 and the fourth groove 8 enclose a first chamber 11, the second groove 4 and the fifth groove 9 enclose a second chamber 12, the third groove 5 and the sixth groove 10 enclose a third chamber 13, and the left end of the first chamber 11, the left end of the second chamber 12 and the left end of the third chamber 13 are communicated, the right end of the first chamber 11, the right end of the second chamber 12 and the right end of the third chamber 13 are communicated, a first wick and a second wick are then provided in the first chamber 11 and the third chamber 13 respectively, then filling fluid into the first wick and the second wick and vacuumizing the second chamber 12;

(7) carry out the pressfitting with the border of first base plate 1 and second base plate 6 of lock joint together in step (6) and make the heat pipe, the thickness scope of the heat pipe of making after the pressfitting is 0.1mm-0.5mm, generally adopts the full copper material to prepare the heat pipe among the prior art, adopts the heat pipe that copper was made, and the texture is softer, durable not durable enough, and life is short, and the cost is higher, the utility model discloses a carry out metal spraying's mode on rigidity heat conduction materials such as stainless steel and make, both possessed good heat conductivity, possessed certain rigidity simultaneously, durable, long service life, thickness is thin, and the cost is lower.

In another embodiment of the present invention, a plurality of cavities can be formed by disposing a plurality of grooves to dispose a plurality of wick structures to meet the use requirement, for example, when four wicks are required to be disposed as compared with the first embodiment, the heat pipe of the present invention comprises;

a first combination part and a second combination part, wherein the first combination part comprises a first substrate 1, a first spraying coating layer 2 is arranged on the lower surface of the first substrate 1, the lower surface of the first substrate 1 is coated with metal to form a first coating layer 2, the first substrate 1 and the first coating layer 2 are pressed to form the first combined part, the bottom surface of the first spraying layer 2 is sequentially provided with a seventh groove, an eighth groove, a ninth groove, a tenth groove, an eleventh groove and a twelfth groove from front to back, the left end of the seventh groove, the left end of the eighth groove and the left end of the ninth groove are communicated, the right end of the seventh groove, the right end of the eighth groove and the right end of the ninth groove are communicated, the left end of the tenth groove, the left end of the eleventh groove and the left end of the twelfth groove are communicated, and the right end of the tenth groove, the right end of the eleventh groove and the right end of the twelfth groove are communicated; the second combination part comprises a second substrate 6, a second spraying layer 7 is arranged on the upper surface of the second substrate 6, the second spraying layer 7 is formed by metal spraying on the upper surface of the second substrate 6, the second substrate 6 and the second spraying layer 7 are pressed to form the second combination part, a thirteenth groove, a fourteenth groove, a fifteenth groove, a sixteenth groove, a seventeenth groove and an eighteenth groove are sequentially arranged on the top surface of the second spraying layer 7 from front to back, the left end of the thirteenth groove, the left end of the fourteenth groove and the left end of the fifteenth groove are communicated, the right end of the thirteenth groove, the right end of the fourteenth groove and the right end of the fifteenth groove are communicated, the left end of the sixteenth groove, the left end of the seventeenth groove and the left end of the eighteenth groove are communicated, the right end of the sixteenth groove, the right end of the seventeenth groove and the right end of the eighteenth groove are communicated, the first combination part is buckled on the second combination part, the first combination part is connected with the edge of the second combination part, which is contacted with the second combination part, the seventh groove and the thirteenth groove surround a fourth chamber, the eighth groove and the fourteenth groove surround a fifth chamber, the ninth groove and the fifteenth groove surround a sixth chamber, the left and right ends of the fourth chamber, the fifth chamber and the sixth chamber are respectively provided with two barrels, the tenth groove and the sixteenth groove surround a seventh chamber, the eleventh groove and the seventeenth groove surround an eighth chamber, the twelfth groove and the eighteenth groove surround a ninth chamber, the left and right ends of the seventh chamber, the eighth chamber and the ninth chamber are respectively communicated, and the third chamber, the sixth chamber, the seventh chamber and the ninth chamber are respectively provided with a third liquid absorbing core, a fourth liquid absorbing core, a fifth liquid absorbing core and a sixth liquid absorbing core, the third wick, the fourth wick, the fifth wick and the sixth wick are filled with fluid, the fifth chamber and the eighth chamber are vacuumized and kept at a certain vacuum, the seventh groove, the eighth groove, the ninth groove, the tenth groove, the eleventh groove, the twelfth groove, the thirteenth groove, the fourteenth groove, the fifteenth groove, the sixteenth groove, the seventeenth groove and the eighteenth groove of the present invention are formed by laser engraving, etching or other methods, the seventh groove, the eighth groove, the ninth groove, the fourth groove 8, the fifth groove 9 and the sixth groove 10 formed in any way are all covered in the protection scope of the present invention, wherein the connection of the contacting edges of the first combination portion and the second combination portion can be a press connection, a welding connection or other methods, and the connection of the first combination portion and the second combination portion in any way is all covered in the protection scope of the present invention, the utility model discloses a left end of fourth cavity, the left end of fifth cavity, the left end of sixth cavity, the left end of seventh cavity, the left end of eighth cavity and the left end of ninth cavity are mutually linked and are formed the annular runner, the utility model discloses a right-hand member of fourth cavity, the right-hand member of fifth cavity, the right-hand member of sixth cavity, the right-hand member of seventh cavity, the right-hand member of eighth cavity and the right-hand member of ninth cavity communicate each other and have formed the annular runner, and third imbibition core, fourth imbibition core, fifth imbibition core and sixth imbibition core also are capillary structure promptly, and third imbibition core, fourth imbibition core, fifth imbibition core and sixth imbibition core can be equipped with structures such as a plurality of micropore micrpocells in, through this setting the utility model discloses inside multiunit capillary structure that has formed, has strengthened the efficiency of heat dissipation heat conduction, the utility model discloses a seventh recess, eighth recess, ninth recess, tenth recess, Eleventh recess, twelfth recess, thirteenth recess, fourteenth recess, fifteenth recess, sixteenth recess, seventeenth recess and eighteenth recess do not restrict specific shape, can make various patterns and mutually support and use the back flow according to the demand, the utility model discloses a be equipped with third imbibition core, fourth imbibition core, fifth imbibition core and sixth imbibition core in fourth cavity, sixth cavity, seventh cavity and the ninth cavity respectively, can keep appropriate vacuum and gaseous circulation in fifth cavity and eighth cavity, can also make certain molding inside first spraying layer 2 and second spraying layer 7 to form certain passageway, satisfy the demand, when using the utility model discloses an one end is the evaporating end other end and is the condensation end, and when normally using, the third imbibition core, the fourth imbibition core of evaporating end, the fourth imbibition core, And the fluid in the fifth wick and the sixth wick absorbs heat to become gas, the gas enters the fifth chamber or the eighth chamber and reaches the condensation end along the fifth chamber or the eighth chamber, and the gas becomes liquid again, enters the third wick, the fourth wick, the fifth wick and the sixth wick and then flows back to the evaporation end.

The present embodiment is not intended to limit the shape, material, structure, etc. of the present invention in any form, and all of the technical matters of the present invention belong to the protection scope of the present invention to any simple modification, equivalent change and modification made by the above embodiments.

Claims (4)

1. A heat pipe, comprising:

the first combination part comprises a first substrate, a first spraying layer is arranged on the lower surface of the first substrate, a first spraying layer is formed on the lower surface of the first substrate through metal spraying, the first substrate and the first spraying layer are pressed to form the first combination part, a first groove, a second groove and a third groove are sequentially arranged on the bottom surface of the first spraying layer from front to back, the left end of the first groove, the left end of the second groove and the left end of the third groove are communicated, the right end of the first groove, the right end of the second groove and the right end of the third groove are communicated, the second combination part comprises a second substrate, a second spraying layer is arranged on the upper surface of the second substrate, a second spraying layer is formed on the upper surface of the second substrate through metal spraying, the second substrate and the second spraying layer are pressed to form the second combination part, a fourth groove is sequentially formed on the top surface of the second spraying layer from front to back, The left end of the fourth groove, the left end of the fifth groove and the left end of the sixth groove are communicated, the right end of the fourth groove, the right end of the fifth groove and the right end of the sixth groove are communicated, the first groove, the second groove and the third groove are sequentially buckled on the fourth groove, the fifth groove and the sixth groove, the first combination part is buckled on the second combination part, the edge of the first combination part, which is contacted with the second combination part, is connected, the first groove and the fourth groove are encircled to form a first cavity, the second groove and the fifth groove are encircled to form a second cavity, the third groove and the sixth groove are encircled to form a third cavity, the left end of the first cavity, the left end of the second cavity and the left end of the third cavity are communicated, the right end of the first cavity, the right end of the second cavity and the right end of the third cavity are communicated, and a first liquid absorption core and a second liquid absorption core are respectively arranged in the first chamber and the third chamber, and fluid is filled in the first liquid absorption core and the second liquid absorption core.

2. A heat pipe as set forth in claim 1 wherein: the first substrate and the second substrate are both made of a rigid heat conducting material.

3. A heat pipe as set forth in claim 2 wherein: the first spraying layer and the second spraying layer are both composed of a plurality of layers of metal particles or powder, and the metal particles or powder are both made of heat conducting materials.

4. A heat pipe as set forth in claim 3 wherein: the diameter of the metal particles is 2-100 μm.

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