CN210004837U

CN210004837U - heat pipe with improved strength

Info

Publication number: CN210004837U
Application number: CN201920673771.5U
Authority: CN
Inventors: 周志勇
Original assignee: Shenzhen Shangyi Industrial Co Ltd
Current assignee: Shenzhen Shangyi Industrial Co Ltd
Priority date: 2019-04-29
Filing date: 2019-04-29
Publication date: 2020-01-31
Anticipated expiration: 2029-04-29

Abstract

The utility model relates to a heat transfer element technical field discloses kinds of heat pipes that can carry high strength, including roof, bottom plate, porous capillary structure, supporting part, evaporation zone and condensation zone, the heat pipe that can carry high strength seals and inside has the cavity, the evaporation zone with the condensation zone is located respectively the both ends of the heat pipe that can carry high strength, the roof is fixed in the top of bottom plate, porous capillary structure is including being located a plurality of holes of the inner wall of cavity, the supporting part with the roof bottom plate fixed connection the utility model provides a heat pipe can still have higher intensity when thickness is thinner, is difficult for producing the deformation, and it has good capillary suction and less radial thermal resistance.

Description

heat pipe with improved strength

Technical Field

The utility model relates to a heat transfer element technical field especially relates to kinds of heat pipes that can improve intensity.

Background

The heat pipe is generally composed of a shell, a wick and an end cover, wherein the heat pipe is pumped to a negative pressure state, filled with a proper amount of liquid with a low boiling point and easy to volatilize, the wick is located on the pipe wall and has a capillary structure, the end of the heat pipe is an evaporation end, and the end is a condensation end.

SUMMERY OF THE UTILITY MODEL

In order to overcome the deficiency of the prior art, the utility model provides an kinds of heat pipes that can improve intensity, this heat pipe can still have higher intensity when the thickness is thinner, is difficult for producing the deformation, and it has good capillary suction and less radial thermal resistance.

The utility model provides a technical scheme that its technical problem adopted is:

the utility model provides kinds of heat pipes that can improve intensity, including roof, bottom plate, porous capillary structure, supporting part, evaporation zone and condensation zone, the heat pipe that can improve intensity seals and the inside cavity that has, the evaporation zone with the condensation zone is located respectively the both ends of the heat pipe that can improve intensity, the roof is fixed in the top of bottom plate, porous capillary structure is including being located a plurality of holes of the inner wall of cavity, the supporting part with the roof bottom plate fixed connection.

As an improvement of the technical scheme, the porous capillary structure further comprises a plurality of holes arranged on the outer side wall of the supporting part.

As a further improvement , the top plate and/or the bottom plate is provided with a recess to form the cavity.

As a further improvement of the technical scheme, the porosity range of the porous capillary structure is 20% -60%, the pore diameter range of the pores is 0.01mm-0.2mm, and the depth range of the pores is 0.05mm-0.8 mm.

As a further improvement , the pore diameter of the pores of the porous capillary structure from the evaporation zone to the condensation zone gradually increases, the depth of the pores gradually decreases, and the porosity gradually decreases.

As a further improvement , the supporting portion includes a plurality of supporting blocks independent of each other.

As a further improvement of the above technical solution, the support portion includes a support plate, the support plate can seal the cross section of the cavity, and the support plate is provided with a plurality of through holes.

As an improvement of the above technical solution in step , the support portion includes a corrugated hollow plate and a support column, the hollow plate is provided with a plurality of hollow holes, the support column penetrates through a part of the hollow holes, and two ends of the support column respectively abut against the top plate and the bottom plate.

As a further improvement of , the supporting portion includes a mesh plate and a supporting post, the mesh plate is provided with a plurality of meshes, the supporting post penetrates through a portion of the meshes, and two ends of the supporting post respectively abut against the top plate and the bottom plate.

As a further improvement , an adiabatic region is disposed between the evaporation region and the condensation region, the evaporation region is in contact with a heat source, and the condensation region is provided with heat dissipation fins and a fan.

The utility model has the advantages that: the utility model provides a heat pipe can still have higher intensity when thickness is thinner, is difficult for producing the deformation, and it has good capillary suction and less radial thermal resistance.

Drawings

The present invention is further illustrated in with reference to the following figures and examples:

FIG. 1 is a schematic structural diagram of a heat pipe according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a top plate in an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a bottom plate in an th embodiment of the invention;

fig. 4 is a schematic structural view of an embodiment of the present invention after a support part is placed on a bottom plate;

fig. 5 is a schematic structural view of the second embodiment of the present invention after the support part is placed on the bottom plate;

fig. 6 is a schematic structural view of a third embodiment of the present invention after a support part is placed on a bottom plate;

fig. 7 is a schematic structural view of a support portion in a fourth embodiment of the present invention;

fig. 8 is a schematic structural view of a support portion in a fifth embodiment of the present invention;

fig. 9 is a schematic structural view of a support portion in a sixth embodiment of the present invention.

Detailed Description

The conception, specific structure and technical effects of the present invention will be described clearly and completely with reference to the accompanying drawings and embodiments, so as to fully understand the objects, aspects and effects of the present invention. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

It should be noted that, unless otherwise specified, when a certain feature is referred to as being "fixed" or "connected" to another features, it can be directly fixed or connected to another features or indirectly fixed or connected to another features.

The terms "and/or" as used herein include or any combination of the listed items in relation thereto.

Referring to fig. 1 to 3, there are shown schematic structural diagrams of a heat pipe, a top plate and a bottom plate according to an embodiment of the present invention, respectively, the heat pipe includes a top plate 1 and a bottom plate 2, the top plate 1 is fixed on the top of the bottom plate 2, so as to seal the exterior of the heat pipe, a concave portion 11 is provided on the top plate 1, a second concave portion 21 is provided on the bottom plate 2, and a concave portion 11 and the second concave portion 21 form a cavity in the heat pipe, or only a concave portion may be provided on the top plate 1, or only a concave portion may be provided on the bottom plate 2, a proper amount of low-melting-point working fluid, such as water, ethanol or acetone, is placed in the cavity, and a plurality of holes are provided on the surfaces of the concave portion 11 and the second concave portion 21, so as to.

The heat pipe is provided with an evaporation area 3 and a condensation area 4, the evaporation area 3 and the condensation area 4 are respectively positioned at two end areas of the heat pipe, and the area between the evaporation area 3 and the condensation area 4 is an adiabatic area. The evaporation zone 3 is in contact with a heat source which causes the working liquid inside the evaporation zone 3 to evaporate into a gas. The gas flows in the cavity to the condensation area 4, and a heat dissipation fin (not shown) is disposed at the condensation area 4 and a fan is disposed to accelerate the heat transfer in the area. The gas will liquefy to a liquid upon cooling in this region and the liquid will flow back to the evaporation zone 3 under the capillary suction of the porous capillary structure.

If the pore diameter of the pores is too large, the depth is too small, the porosity is too small, the capillary suction force on the liquid is not enough, if the pore diameter of the pores is too small, the depth is too large, the porosity is too large, although the capillary suction force is larger, the flow resistance of the liquid is increased, and therefore, the porosity and the pore size need to be within a relatively balanced numerical range of .

The material of the heat pipe can be adjusted according to the parameters of the etching solution or the etching power supply, and usually, copper, aluminum, stainless steel, titanium alloy, and the like can be selected. And selecting parameters such as the pore size, the porosity and the like of the porous capillary structure according to the use requirement, and selecting proper concentration of the etching solution and power supply parameters according to the parameters. The fabrication of holes in a metal surface by etching is well known in the art and will not be described herein.

In order to achieve a rapid return of the working liquid, the parameters of the porous capillary structure from the evaporation zone 3 to the condensation zone 4 can be varied. The pore diameter of the pores of the porous capillary structure from the evaporation zone 3 to the condensation zone 4 is gradually increased, the depth of the pores is gradually reduced, and the porosity is gradually reduced. The design can make the capillary suction force of the capillary structure to the liquid gradually decrease from the evaporation zone 3 to the condensation zone 4. It is therefore advantageous for the liquid in the condensation zone 4 to flow back to the evaporation zone 3 as quickly as possible.

In order to enhance the support of the heat pipe and avoid the deformation of the heat pipe when the heat pipe is pressed, a support part is further arranged in the cavity of the heat pipe, two ends of the support part are respectively fixedly connected with the top plate 1 and the bottom plate 2, and the fixed connection can be realized through welding or bonding and other modes.

Referring to fig. 4, there is shown a schematic structural diagram of the present invention according to an embodiment , in which the supporting portion is disposed on the bottom plate, the supporting portion includes a plurality of supporting blocks 51 disposed in the cavity, the supporting blocks 51 are rectangular and are distributed in an array, of course, the arrangement of the supporting blocks is not limited thereto, and other positions may be disposed, and the upper and lower surfaces of the supporting blocks 51 respectively abut against the inner walls of the top plate 1 and the bottom plate 2 to support the heat pipe, so as to prevent the supporting blocks 51 from blocking the flow channel in the heat pipe, the supporting blocks 51 may not be disposed too densely, and in addition, a plurality of holes are also disposed on the outer side wall of the supporting block 51, and these holes are also parts of the porous capillary structure.

Referring to fig. 5, there is shown a schematic view of a second embodiment of the present invention in which a support portion is placed on a base plate, the present embodiment is different from the embodiment only in the shape of the support portion, and in the present embodiment, the support block 52 has a cylindrical shape.

Referring to fig. 6, there is shown a schematic view showing a structure of the third embodiment of the present invention after the support part is placed on the bottom plate, and this embodiment is different from the embodiment only in the place and shape of the support part, in this embodiment, rectangular parallelepiped support blocks 53 are placed around cylindrical support blocks.

Referring to fig. 7, a schematic structural diagram of the fourth embodiment of the present invention is shown after the supporting portion is placed on the bottom plate, the embodiment is different from the embodiment only in the shape of the supporting portion, in the embodiment, the supporting portion 6 includes a supporting plate 61 and a supporting post 62, the supporting plate 61 is in a "wave shape", a plurality of hollow holes are formed in the supporting plate 61, the supporting post 62 passes through a part of the hollow holes, and the top surface and the bottom surface of the supporting post 62 are respectively abutted against the inner walls of the top plate 1 and the bottom plate 2.

Referring to fig. 8, a schematic structural view of the fifth embodiment of the present invention is shown after a support part is placed on a bottom plate, the present embodiment is different from the embodiment only in the shape of the support part, in the present embodiment, the support part 7 includes a net-shaped plate 71 and a support pillar 72, the net-shaped plate 71 is "net-shaped", a plurality of meshes are provided on the net-shaped plate 71, the support pillar 72 passes through a part of the meshes, and the top surface and the bottom surface of the support pillar 72 are respectively abutted against the inner walls of the top plate 1 and the bottom plate 2.

Referring to fig. 9, a schematic structural diagram of the sixth embodiment of the present invention is shown after the supporting portion is placed on the bottom plate, the present embodiment is different from the embodiment only in the shape of the supporting portion, in the present embodiment, the supporting portion includes a supporting plate 8, a plurality of through holes 81 are provided on the supporting plate 8, the shape and size of the supporting plate 8 are matched with the cross section of the cavity, the supporting plate 8 can seal the cross section of the cavity, the through holes 81 become the gas flow channel in the heat pipe, the top surface 82 of the supporting plate 8 is abutted against the inner wall of the top plate, and the bottom surface 83 is abutted against the inner wall.

While the invention has been described with reference to a preferred embodiment, 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.

Claims

The utility model provides an kind of heat pipes that can strengthen, its characterized in that, including roof, bottom plate, porous capillary structure, supporting part, evaporation zone and condensation zone, the heat pipe that can strengthen seals and the inside cavity that has, the evaporation zone with the condensation zone is located respectively the both ends of the heat pipe that can strengthen, the roof is fixed in the top of bottom plate, porous capillary structure is including being located a plurality of holes of the inner wall of cavity, the supporting part with the roof bottom plate fixed connection.
2. A heat pipe with improved strength as claimed in claim 1, wherein the porous wick structure further comprises a plurality of holes disposed on the outer side wall of the support.
3. A heat pipe of increased strength as claimed in claim 1, wherein the top plate and/or the bottom plate is provided with a depression to form the cavity.
4. A heat pipe of increased strength as defined in claim 1, wherein the porosity of the porous wick structure is in the range of 20-60%, the pore diameter of the pores is in the range of 0.01-0.2 mm, and the depth of the pores is in the range of 0.05-0.8 mm.
5. A heat pipe of increased strength as defined in claim 1 wherein the pores of said porous wick structure from said evaporation zone to said condensation zone have progressively larger pore sizes, progressively smaller pore depths, and progressively smaller porosity.
6. A heat pipe with improved strength as claimed in claim 1, wherein the supporting portion comprises a plurality of supporting blocks independent of each other.
7. A heat pipe with improved strength as claimed in claim 1, wherein the supporting portion comprises a supporting plate, the supporting plate can seal the cross section of the cavity, and the supporting plate is provided with a plurality of through holes.
8. A heat pipe according to claim 1, wherein the supporting portion comprises a corrugated hollow plate and a supporting pillar, the hollow plate is provided with a plurality of hollow holes, the supporting pillar penetrates through a portion of the hollow holes, and two ends of the supporting pillar respectively abut against the top plate and the bottom plate.
9. A heat pipe according to claim 1 wherein the support portion comprises a mesh plate and a support column, the mesh plate has a plurality of meshes, the support column passes through a portion of the meshes, and two ends of the support column respectively abut against the top plate and the bottom plate.
10. A heat pipe with improved strength as claimed in claim 1, wherein an adiabatic region is disposed between the evaporation region and the condensation region, the evaporation region is in contact with a heat source, and the condensation region is disposed with a heat sink fin and a fan.