Different material floating heat pipe structure
The heat pipe structure with a polymer flexible section and adjustable units addresses the issue of height differences on electronic boards by enabling flexible bending and swinging, ensuring efficient heat transfer and protection against deformation.
Patent Information
- Application Number
- CN202111431771.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2021-11-29
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2041-11-29
AI Technical Summary
Traditional heat pipes with uniform metal thickness and inflexible structures face issues with height differences on electronic device boards, leading to deformation and reduced heat transfer efficiency due to bending or folding, and existing flexible heat pipes can only adjust at one angle or direction, limiting their applicability to multiple height differences.
A heat pipe structure with a flexible section made of polymer material and a multi-section floating adjustment unit composed of pivotally connected adjustment parts, allowing bending and swinging at various angles to accommodate different height differences.
The structure enables flexible adjustment to fit multiple height differences, preventing deformation and maintaining efficient heat transfer by allowing the heat pipe to bend and swing at desired angles, thus enhancing heat dissipation performance.
Smart Images
Figure CN114046681B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to a heat pipe structure, in particular to a floating heat pipe structure of different materials. Background Art
[0002] A traditional heat pipe is a component with high thermal conductivity. After the internal working fluid absorbs heat, a phase change occurs as heat transfer. It can generate a large amount of heat transfer at a very small temperature difference and can operate without any external power supply. The structure of a traditional heat pipe mainly includes three parts, namely a closed container, a capillary structure and a working fluid. The operating conditions of the heat pipe are mainly in a vacuum environment, so a good closed space is required. The capillary structure is a structure that is easy to transmit the working fluid. In terms of function, the container can be divided into three areas, consisting of the evaporator section, the adiabatic section and the condenser section. The operating principle is that the evaporation section of the container is heated, and the working fluid in the internal capillary structure absorbs heat and produces a phase change, from liquid to vapor. The vapor pressure generated pushes the steam through the adiabatic section to the condensation section with low pressure. After the steam reaches the condensation section, it releases the absorbed latent heat and condenses back into the working fluid. Then the capillary force of the capillary structure sends the working fluid back to the evaporation section, and the heat transfer cycle is repeated continuously.
[0003] Furthermore, the structure of the flat-plate heat pipe is similar to that of the traditional tube-type heat pipe, and it also includes a metal sealed container, capillary structure and working fluid, and the operating principle is also the same as that of the traditional heat pipe. The biggest difference between the two is that the flat-plate heat pipe is different from the one-dimensional heat flow of the traditional heat pipe. Its bottom has a larger area that can be completely attached to the heat source. Therefore, it helps to maintain the uniform temperature of the heat dissipation element and reduce the thermal resistance at the bottom of the heat dissipation element during the heat transfer process, thereby improving the heat dissipation performance.
[0004] However, the packaging structure of each heat source on the electronic device board has a height difference (inconsistent height), so that each heat source has a height difference, so that the evaporation section of each heat pipe that contacts the heat source of the heat dissipation module is overlapped or combined with the radiator to form a height difference, but the combination of this height difference will cause the heat transfer efficiency of the heat pipe to decrease or become inoperable; the reason is that the tube body of the heat pipe is made of metal plates of the same thickness, so the thickness of the evaporation section, the insulation section and the condensation section of the heat pipe are consistent; when there is a need to adjust the height difference between the evaporation section and the condensation section, due to the characteristics of the metal material and the uniform thickness of the plate, if the insulation section is bent or folded to meet the height difference requirement, the bridging force between the evaporation section and the condensation section of the heat pipe will cause the insulation section (transmission section) to be squeezed inward or pulled outward and deformed, causing damage to the capillary structure and the tube wall in the heat pipe, thereby affecting the poor heat transfer and heat dissipation efficiency, or even failure.
[0005] Later, a flexible heat pipe was used to adjust the height difference between the evaporation section and the condensation section. However, the existing flexible heat pipe uses a corrugated structure or a thinner tube wall than the evaporation section and the condensation section as a flexible section to connect the evaporation section and the condensation section of the heat pipe. However, the flexible section composed of the corrugated structure and the thinner tube wall will produce wrinkle interference during bending, and can only bend at one angle or in one direction. As a result, the bending angle can only be adjusted according to the highest electronic component, and it is impossible to cooperate with multiple height difference heat sources or mechanism configurations to provide bending at different angles or directions, causing inconvenience in use or application.
[0006] Therefore, how to solve the above problems and deficiencies is the direction that the inventor of this case and related manufacturers engaged in this industry are eager to study and improve. Summary of the invention
[0007] In order to improve the above-mentioned problems, an object of the present invention is to provide a heat pipe body having a flexible section made of a different material, and the outer surface of the flexible section is provided with a multi-section floating adjustment unit composed of a plurality of adjustment parts to limit and protect the different-material floating heat pipe structure of the flexible section.
[0008] An object of the present invention is to provide a multi-section floating adjustment unit having a plurality of adjustment members located on the outer surface of a flexible section of a heat pipe. The plurality of adjustment members are pivotally connected to each other via a pivoting portion so as to be able to be bent and swung at the same or different adjustment angles.
[0009] To achieve the above-mentioned purpose, the present invention provides a floating heat pipe structure of different materials, characterized in that it comprises:
[0010] A body having a front end, a rear end and a flexible section, the flexible section is disposed between the front end and the rear end and communicated with the front end and the rear end, the front end and the rear end are made of metal material, the flexible section is made of polymer material, a heat conduction chamber is defined in the body and extends from the front end through the flexible section and communicated with the rear end;
[0011] A multi-section floating adjustment unit has a plurality of adjustment parts arranged on an outer surface of the flexible section to limit and protect the flexible section. Each adjustment part has a pivot portion at both ends, and the plurality of adjustment parts are pivotally connected together through the pivot portion so that the plurality of adjustment parts can be bent and set at the same or different adjustment angles through the pivot connection.
[0012] The heterogeneous material floating heat pipe structure, wherein: the front end and the rear end are made of the same or different metal materials.
[0013] The heterogeneous material floating heat pipe structure, wherein: the polymer material is plastic, polypropylene, polyethylene, polystyrene, polyimide or polyethylene terephthalate.
[0014] The heterogeneous material floating heat pipe structure, wherein: the pivoting parts at both ends of each adjusting member are respectively provided with a pivoting hole, and the corresponding pivoting holes are pivoted by at least one pivoting element.
[0015] The heterogeneous material floating heat pipe structure, wherein: any one of the pivoting parts at both ends of each adjusting member is provided with a pivoting hole, and the other one is provided with a pivoting convex shaft.
[0016] The heterogeneous material floating heat pipe structure, wherein: the front end has a front end inner space, the rear end has a rear end inner space, the flexible section has a flexible inner space, the front end inner space, the rear end inner space and the flexible inner space are interconnected and constitute the heat conduction chamber, the front end inner space and the rear end inner space respectively have a first capillary structure, the flexible inner space has a second capillary structure, and a working liquid is contained in the heat conduction chamber.
[0017] The heterogeneous material floating heat pipe structure, wherein: at least one adjustment member is located at at least one end of the multi-section floating adjustment unit, for connecting the front section and / or the rear section of the body.
[0018] Compared with the prior art, the present invention has the beneficial effect that the plurality of adjusting members can be bent and swung at the same or different adjustment angles by means of a pivoting portion at both ends of the plurality of adjusting members. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a three-dimensional exploded schematic diagram of the present invention;
[0020] Figure 2 It is a schematic diagram of a three-dimensional combination of the present invention;
[0021] Figure 3A It is a cross-sectional schematic diagram of the present invention;
[0022] Figure 3B Schematic diagram of another embodiment of the first capillary contacting the second capillary of the present invention:
[0023] Figure 4A-4B It is a partial schematic diagram of the multi-section floating adjustment unit of the present invention;
[0024] Figure 5 It is a schematic diagram of another embodiment of the connection between the multi-section floating adjustment unit and the front end of the present invention;
[0025] Figure 6 Schematic diagram of the present invention with different or same adjustment angles of bending and swinging.
[0026] Explanation of the reference numerals: heat pipe structure 10; main body 11; front end 111; front end inner space 1111; flexible section 112; flexible inner space 1121; outer surface 1123; rear end 113; rear end inner space 1131; first capillary structure 1141; second capillary structure 1142; extension portion 11421; multi-section floating adjustment unit 19; adjustment member 191; upper portion 191a; lower portion 191b; pivot portion 1911; front side 19111; rear side 19112; pivot holes 191111, 191121; pivot element 193; protruding shaft 191111a; gasket 194. DETAILED DESCRIPTION
[0027] The above-mentioned objects and the structural and functional characteristics of the present invention will be described based on the preferred embodiments shown in the accompanying drawings.
[0028] Please refer to Figure 1 It is a three-dimensional exploded schematic diagram of the present invention; Figure 2 It is a schematic diagram of a three-dimensional combination of the present invention; Figure 3A It is a cross-sectional schematic diagram of the present invention; Figure 3BThe schematic diagram of another embodiment of the first capillary contact and the second capillary contact of the present invention. As shown in the figure, a heat pipe structure 10 (for example, a circular, D-shaped, or flat heat pipe) includes a body 11 and a multi-section floating adjustment unit 19. The body 11 has a front end 111, a flexible section 112, and a rear end 113. The front end 111 and the rear end 113 are a shell made of the same or different metal materials (such as a plate-shaped shell shown in the figure, but not limited to this, it can also be a circular or D-shaped shell or other geometric shapes), and serve as an evaporation section and a condensation section respectively; the flexible section 112 is made of a polymer material or a plastic material, and is arranged between the front end 111 and the rear end 113 as an insulation section and connected to the front end 111 and the rear end 113. The multi-section floating adjustment unit 19 is disposed on an outer surface of the flexible section 112 and is substantially located between the front end 111 and the rear end 113 . The detailed structure of the multi-section floating adjustment unit 19 will be described later.
[0029] The metal material of the front end 111 and the rear end 113 is, for example, any one of gold, silver, copper, aluminum, iron, stainless steel, titanium, commercially pure titanium, titanium alloy, copper alloy, and aluminum alloy. The polymer material or plastic material of the flexible section 112 includes any one of polypropylene (PP), polyethylene (PE), polystyrene (PS), polyimide (PI), and polyethylene terephthalate (PET). The selection of polymer or plastic material can enable the flexible section 112 to achieve the effect of withstanding the number of bendings and strength, and prevent the flexible section 112 from being broken or damaged.
[0030] The front end 111 has a front end inner space 1111, the rear end 113 has a rear end inner space 1131, the flexible section 112 has a flexible inner space 1121, the front end inner space 1111, the rear end inner space 1131 and the flexible inner space 1131 are interconnected and form a heat conduction chamber R in the body 11. That is, the heat conduction chamber R extends from the front end 111 through the flexible section 112 and then connects to the rear end 113, and the heat conduction chamber R is filled with working liquid.
[0031] A first capillary structure 1141 such as a groove, a powder sintered body, a grid body, a fiber body, or a corrugated plate is respectively provided in the front end inner space 1111 and the rear end inner space 1131; a second capillary structure 1142 such as a grid body, a fiber body, a corrugated plate body, or a plate with a concave-convex surface is provided in the flexible inner space 1121 to match the bending state of the flexible section 112.
[0032] Furthermore, the present embodiment shows that the two ends of the flexible section 112 extend to the front inner space 1111 and the rear inner space 1131 respectively, and the second capillary structure 1142 of the flexible section 112 is in flush contact or connection with the first capillary 1141 (such as Figure 3A In another alternative implementation, the second capillary structure 1142 of the flexible section 112 has an extension portion 11421 that can contact or connect with the first capillary 1141 in an overlapping manner (such as Figure 3B As shown in FIG. 1 ), the flexible section 112 forms a capillary connection with the front end 111 and the rear end 113. The so-called capillary connection means that liquid can flow from one capillary structure to another capillary structure through capillary force.
[0033] The working fluid in the heat transfer chamber R is heated at the front end 111 and evaporates from liquid to gas, then passes through the flexible section 112 to the rear end 113 to dissipate heat and condense to liquid, and then flows back to the front end 111 through the first capillary structure 1141 and the second capillary structure 1142. In this way, the working fluid in the heat transfer chamber R has a two-phase gas-liquid circulation operation to achieve the heat dissipation effect of heat transfer.
[0034] Please continue to refer to Figure 4A-4B This is a partial schematic diagram of the multi-section floating adjustment unit of the present invention. Figures 1 to 3A , Figure 3B The multi-section floating adjustment unit 19 has a plurality of adjustment members 191 disposed adjacent to each other along the flexible section 112, and the plurality of adjustment members 191 are arranged at the same spacing or at different spacings. In the present embodiment, four adjustment members 191 are arranged at the same spacing, but it is not limited thereto. The number and spacing of the plurality of adjustment members 191 can be increased or decreased according to the length of the flexible section 112. Each adjustment member 191 has a pivot portion 1911 at both ends, and two adjacent adjustment members 191 are pivotally connected to each other via the corresponding pivot portions 1911 to form a multi-section pivot structure, so that they can bend and swing with each other. Each adjustment member 191 has an upper portion 191a connected to a lower portion 191b, so that the flexible section 112 is enclosed in the multi-section floating adjustment unit 19 (such as Figures 1 to 3A , Figure 3B shown).
[0035] The two ends of each of the aforementioned adjustment members 191, such as a front side 19111 and a rear side 19112, are respectively provided with the pivoting portion 1911. In this embodiment, the pivoting portion 1911 is configured as a male-female concave-convex matching arrangement, and the pivoting portions 1911 of the front sides 19111 of two adjacent adjustment members 191 are correspondingly pivoted to the pivoting portions 1911 of the rear sides 19112. In this embodiment, the pivoting portions 1911 of two adjacent adjustment members 191 are provided with corresponding pivoting holes 191111, 191121, and at least one pivoting element 193 (such as a pivot or a pin) passes through the corresponding pivoting holes 191111, 191121 as a pivoting connection means to pivotally connect the pivoting portions 1911 together. Furthermore, the pivoting parts 1911 of the two adjacent adjusting members 191 are connected by the pivoting element 193 to produce a pressing effect, thereby generating an appropriate tightening force and tightening torque (such as Figure 4A In addition, a gasket 194 (such as a torque plate, a metal plate or a friction plate) can be optionally arranged between the pivoting parts 1911 to provide additional tightening force and tightening torque (such as Figure 4A As shown). However, the present invention is not limited thereto, and the spacer 194 may be omitted in other embodiments. In this way, the multi-section floating adjustment unit 19 adjusts the plurality of adjustment members 191 to bend and swing at different or the same adjustment angles by means of the pivoting portions 1911 between adjacent adjustment members 191.
[0036] In an alternative implementation, one of the pivoting parts of each section of the adjusting member 191 is provided with a pivot hole, and the other is provided with a convex shaft corresponding to the pivot hole as another pivot connection means. In the figure, the pivoting part 1911 of the front side 19111 of the adjusting member 191 is provided with a protruding convex shaft 191111a, and the pivoting part 1911 of the rear side 19112 is provided with a pivot hole 191121 cooperating with the convex shaft 191111a to pivot (such as Figure 4B ).
[0037] Although some examples of pivotal connection means are listed above for illustration, they are not limited to these. For example, the pivotal connection means of the present invention includes the use of physical structure, mechanical structure, electronic / electrical structure or a combination thereof to enable two adjacent adjustment members 191 to bend and swing flexibly to adjust the angle.
[0038] Furthermore, the flexible section 112 is made of polymer or plastic material and has a soft and tough property suitable for bending, and the multi-section floating adjustment unit 19 limits the flexible section 112 to bend and swing with the adjustment angle of the adjacent adjustment member 191. Moreover, because the flexible section 112 is soft and tough without hardness and is easily damaged, it is covered in the multi-section floating adjustment unit 19, and the multi-section floating adjustment unit 19 is used as a protective shell to protect and prevent the flexible section 112 from being rubbed, punctured or cut by hard and / or sharp objects.
[0039] Please continue to refer to Figure 5 This is another schematic diagram of the connection between the multi-section floating adjustment unit and the front end of the present invention. Figures 1 to 3A , Figure 3B and Figure 4A-4B , the plurality of adjustment members 191 of the aforementioned multi-section floating adjustment unit 19 are provided on the outer surface of the flexible section 112 by a connection means, or the adjustment member 191 located at at least one end of the multi-section floating adjustment unit 19 (for example, any one or both of the leftmost and rightmost adjustment members 191) is connected to any one or both of the front section 111 and the rear section 113 of the main body 11 by a connection means (for example, pasting, welding, clamping, snapping, or fitting, etc.), so that the multi-section floating adjustment unit 19 is located on the outer surface of the flexible section 112. In a preferred embodiment, the front side 19111 of the leftmost adjustment member 191 is connected to the side of the front section 111 of the main body 11 close to the flexible section 112 (for example, Figure 5 ). However, the present invention is not limited thereto, and the rear side 19112 of the rightmost adjustment member 191 may be connected to the rear section 113 of the body 11 close to the side of the flexible section 112. With such a configuration, the multi-node floating adjustment unit 19 will not be displaced from the flexible section 112 due to the swing of the adjustment angle.
[0040] Please continue to refer to Figure 6 This is a schematic diagram of the present invention with different or same adjustment angles of bending and swinging. Figures 1 to 3A , Figure 3B and Figure 4A-4B The plurality of adjustment members 191 of the multi-section floating adjustment unit 19 are configured to bend and swing at different or the same adjustment angles by means of the pivotal parts 1911 therebetween. For example, but not limited to, the first and second adjustment members 191 are relatively adjusted and swung; the second and third adjustment members 191 are relatively adjusted and swung; and the third and fourth adjustment members 191 are relatively adjusted and swung. The flexible section 112 in the multi-section floating unit 19 is restricted to bend and swing with these adjustment members 191.
[0041] The above description is only illustrative rather than restrictive of the present invention. Those skilled in the art will understand that many modifications, changes or equivalents may be made without departing from the spirit and scope defined by the claims, but all will fall within the scope of protection of the present invention.
Claims
1. A floating heat pipe structure with different materials, It is characterized in that Include: A body having a front end, a rear end and a flexible section, the flexible section is disposed between the front end and the rear end and communicated with the front end and the rear end, the front end and the rear end are made of metal material, the flexible section is made of polymer material, a heat conduction chamber is defined in the body and extends from the front end through the flexible section and communicated with the rear end; A multi-section floating adjustment unit, having a plurality of adjustment members disposed on an outer surface of the flexible section for limiting and protecting the flexible section, each adjustment member having a pivoting portion at both ends, through which the plurality of adjustment members are pivotally connected in series, so that the plurality of adjustment members can be bent and swung at the same or different adjustment angles through the pivoting connection; The front end has a front end inner space, the rear end has a rear end inner space, the flexible section has a flexible inner space, the front end inner space, the rear end inner space and the flexible inner space are interconnected and constitute the heat conduction chamber, the front end inner space and the rear end inner space respectively have a first capillary structure, the flexible inner space has a second capillary structure, and a working liquid is contained in the heat conduction chamber; Wherein, at least one adjusting member is located at at least one end of the multi-section floating adjustment unit, and is used to connect the front end and / or the rear end of the body.
2. The floating heat pipe structure of different materials as claimed in claim 1, Features: The front end and the rear end are made of the same or different metal materials.
3. The heterogeneous material floating heat pipe structure according to claim 1, Features: The polymer material is plastic, polypropylene, polyethylene, polystyrene, polyimide or polyethylene terephthalate.
4. The heterogeneous material floating heat pipe structure according to claim 1, Features: The pivoting parts at both ends of each adjusting member are respectively provided with a pivoting hole, and the corresponding pivoting hole is pivoted by at least one pivoting element.
5. The heterogeneous material floating heat pipe structure according to claim 1, Features: Any one of the pivoting parts at both ends of each adjusting member is provided with a pivoting hole, and the other one is provided with a pivoting convex shaft.