TWI235818B - Method for filling in gap between thermal conduction members and structure thereof - Google Patents

Abstract

Disclosed is a method for filling in a gap between thermal conduction members and a structure thereof, and in particular a method for filling in irregular gap between first and second thermal conduction members to reduce thermal resistance and enhance heat transfer efficiency, and can be efficiently carried out and effectively retains the first thermal conduction member, and a structure thereof. The method for filling in a gap between first and second thermal conduction members that are arranged adjacent to each other includes the following steps; (a) pre-cleaning: in which the first and second thermal conduction members are cleaned up; (b) pre-coating: in which the first thermal conduction member and/or the second thermal conduction member are covered with a pre-coating layer; (c) applying downward pressure: in which a downward pressure is applied to the first thermal conduction member to pres the first thermal conduction member tightly against the second thermal conduction member; and (d) heating: in which the first and second thermal conduction members that are tightly pressed against each other are heated to a temperature of liquid phase change for the pre-coating layers.

Description

V. Description of the invention (1)

[Technical field to which the invention belongs J. The present invention relates to a "i face private method and its structure", in particular: the gap between heat is filled with a pardon value m Dumenxi π ik refers to a method that can effectively Pass the uneven gap between the pieces to fill in, with the method of m ', fast processing, and can simultaneously have two, "pieces and other effects and methods and structures. Haidi ..., pass v [previous technology] Press, The knowledge includes most of the first heat exchanger and a second heat conduction member (for example, on a round tube: (for example, heat dissipation fins) heat exchanger, which is at the first, second and second: s or plate heat pipe, etc.) When it is used for each of the first heat-transmitting parts, it is generally on the first or second; ϋt is set to the second heat-conducting layer heat-conducting paste, and when it is dry, the adjacent parts of the two are coated. One is on; two is heat-conducting member, and because of the surface, it can have considerable effect of heat conduction. It is located in the heat-transporting world, but its part is absent as follows: 1. When it is coated with the heat-conducting paste , :: The piece itself is not clean, but the other chromatin is infiltrated. * There is gas between the two, two, three, and three due to unevenness, and even the lack of transmission efficiency. Therefore, the thermal resistance is too large and the heat is affected. The processing is too slow and the cost is high. 1235818 V. Description of the invention (2) Fourth, the adjacent gaps should be troubled, and if the first and second lubricants to be applied are not processed, there is a processing process, and there is a direct problem. Therefore, this The present invention is the result of intensive research and lack. [Summary of the Invention] The main unevenness rate of the "structure" of the present invention and the rapid processing effect. In order to achieve the above gaps, fill in the gaps between them—the adjacent spaces of the heat conduction elements will not be able to be in phase with each other, 4 / there is only a connection between each other, and there is a large thermal resistance J: the guide element must be For urgent cooperation, it must be cleaned again, even if it is necessary to connect it to the sun, and it must be assisted: the closely-connected first heat-conducting element is scattered:: is unstable. The degree of disturbance is not easy to control. Two = If the conductive parts are items of different materials, they must be electroplated before they can be welded to each other and combined with the guides; and the phase welding is the first invention design of the welding case. Feeling that the above-mentioned lack of knowledge finally provides a kind to be overcome, and it is reasonable and effective to eliminate it :: The cubic purpose of filling the gap between the heat conduction parts is to effectively fill the first and the eighth to fill and tear The thermal resistance is reduced, and the purpose of fixing the $ th ... can be achieved at the same time. The present invention provides a method of full, the first adjacent to the other The method of filling the heat conducting members includes the following steps:-The heat conducting members are cleaned in advance:

Page 6 1235818 V. Description of the invention (3) ί will clean :: ί? The conductive member is clean; (b) Pre-covered with pre-flood ^ and the second heat-conductive member with pre-covered-layer 2: soil amount, so that One conduction: tightly: The conductive member exerts the following repeated forces and (d) adds the skin to the second thermally conductive member; the thermally conductive member heats: the first temperature and the second temperature of the tightly matched state. 、,, σ… / the degree of liquidity rises to the liquid phase change structure of the pre-coating layer = = at least-heat to fill the gap between the heat-conducting parts; 22 heat-conducting parts, and its * and the The melting temperature surface is pre-coated to make the heat-conducting member of the Commission. Intro, n Committee members further understand the characteristics of the present invention. Please read the following detailed description about the present invention and the attached drawings: between ^ = fill = said 'The present invention provides a method and structure for heat transfer member 1㈠: ΐΐ , And a second thermally conductive member 2 (such as a graph heater, a metal rod or a metal plate with a good ir j coefficient) forms 埶 偻 L 孰: the parts adjacent to each other between parts 1, 2 are the second, Hold the surface 4 'and the present invention uses the following steps to abut each other:-a method for filling the gap between the cows 1 and 2, including cleaning: pre-cleaning: pre-cleaning the first and second heat-conducting members 1 2. Clearing page 7 1235818 V. Description of the invention (4) I. Covering the pre-coating first: The first or second heat conducting member 1 or 2 is pre-coated with a pre-coating layer 3, and it covers such The method of precoating 3 may be, for example, dipping, coating, or electroplating, so that the precoating 3 is covered with the entire first or second heat conducting member; or A heat conduction member 1 applies a pressing force i to make each first heat conduction member 1 fit tightly to the second heat transmission, heating, and heating. : Heating the first and second heat transfer members 1, 2 which have been in a tightly fitted state with each other, and increasing the heating temperature to the liquidus change temperature of the pre-coating layer 3. In this way, please refer to the second graph, the second graph A, and the third graph. When the heating temperature rises to the liquidus change temperature of the precoat layer 3, the precoat layer 3 is changed by the solid phase. It is a liquid phase, and at the same time, due to the pressure generated between the first and first heat conducting members 1 and 2 which are closely matched with each other, the pre-coat layer 3 that has been dissolved into a liquid phase is forced to deform and flow, so the heat must be discharged. The gas between the interface 4 is further filled with gaps in the uneven heat transfer interface 4 ', which has the effect of reducing the thermal resistance and forming an excellent heat transfer interface 4. Furthermore, it does not need to use the lubricants required when the first and second heat conducting members 1, 2 are forced to cooperate, and it is not necessary to use the first and second heat conducting members 1, 2 to assist in welding. Flux is environmentally friendly and clean, and is fast and cost effective. There is even no such thing as the lack of easy soldering, non-uniform soldering, and unstable processing between adjacent first f heat transfer members (radiating fins).

1235818 V. Description of the invention (5) The two can better solve the problem of conventional material at the same time, which can't directly weld. Four, even between all the first heat conducting elements and the first heat conducting elements of these radiators), because the pre-coatings can be transformed into two adjacent first The formation and joining of the heat conducting members i are shown in the third figure. Of course, in practical applications, the first and second heat conducting members are covered. As for the selection of the material of the precoat layer 3, it can be refined into a liquid state. Or fluid, and the guides 1 and 2 are low, such as tin, lead, or a thermally conductive paste or polymer with a melting point between 0 · 〇〇2 ～ 〇 · 5 mm is the best, and borrow One of the diagrams A and 2 made by the method of the present invention includes guides 1 and 2 to each other; and at least one of the surfaces before the heat transfer is joined to each other is provided with a pre-coated heat conducting member 1 and the surface is provided with a pre-coating. 3. The melting temperature of the pre-coating layer 3 is lower than that of the present invention as described above. Due to the post-heating, the first and second heat conduction and the first and second heat conduction must be plated between the contacted parts, or I. Existence, in conjunction with gap filling, such as the state of contact . Pre-coating, 2. It is a kind of 40, which has a melting point lower than the first low melting point alloy. For this pre-zero structure, please refer to all of the adjacently joined first guide members (Layer 3 (This implementation is as shown in Figure A. The first and second heat transfers are pre-covered with one or two parts, that is, they are also different because of different troubles.) Missing points (such as: two heat-conducting parts will heat it and dissolve it. The second picture A can be heated at the same time in advance ~ 300 ° c low temperature one, two-way pass, or the thickness of wax, low, coating 3 second picture , First, second heat transfer or partial) In the example is shown in the first), and the pieces 1, 2. The pre-coating and

Page 9! 235818 V. Description of the invention (6) The pressure generated by the urgent cooperation can force the pre-layer 3, which has been melted into a liquid phase, to deform and flow and exhaust the gas between the heat transfer interface 4, Furthermore, 4 gaps in the uneven heat transfer interface are filled, and those with the effect of reducing = resistance. Since it does not require the use of lubricants and fluxes, = Zheng has the effects of environmental protection and cleanliness, fast processing and low cost, = will not have: each of the first heat transfer parts in close contact with each other ( There are some shortcomings such as the difficulty of adding solder, uneven connection, and unstable processing. Therefore, the three problems can be solved simultaneously because of the different material problems of the first and second =. Welding; plating-between the heat-conducting parts and the-and the second;: = The first and the part, after heating and melting, these contacts can be touched. As mentioned above, the method and structure for filling a gap provided by the present invention can indeed = solve the problems and defects between the f conductive members, which really belongs to the application requirements of many well-known patents with a high degree of strictness and = conventional knowledge. According to the disclosure of the Patent Law, it is in line with the issuance and granting of patents in this case to protect the rights of the inventor. Please review them in detail, but the above are only one of the inventions. Limits the patent scope of the invention, ': 2 examples The equivalent of the contents of the drawings is Niu Fan, who uses the present invention to claim the scope of the invention, which is shared by Chen Ming. = The same is included in the 1235818 of the present invention. Brief illustration of the schematic [Schematic illustration] The first diagram is the process of the present invention. Figure 2. The second figure is a side view of the present invention before heating. The second figure A is a partially enlarged view of the present invention according to the second figure. The third figure is a partially enlarged view of the present invention after heating. 1 first heat conducting element

2 Second heat conducting element 3 Pre-coating 4 Thermal interface

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Claims (1)

1235818 VI. Scope of patent application 1. A method for filling the gaps between the heat-conducting parts and adjoining each other: (a) clean; (b) the guides are pre-coated with (c) force to make and ( d) the temperature of the two heat conducting elements. 2. If the gaps are filled with low temperature, the heat-conducting parts can be melted. 3. If the gaps are filled with low-melting alloys. 4. If the gaps are filled with heat-conducting pastes. Pre-cleaning: pre-coating the first and pre-coating layers in advance: covering the first or / and second heat transfer layer with a pre-coating layer; Pieces are tightly fitted to the second heat conducting piece; heating: the method of heating and making the patent application method full or liquid; or the patent application method. The method of applying for a patent, or the method of applying a polymer for patent, should be the first state of tight cooperation with each other. The heating temperature can be raised to the temperature between the heat-conducting parts described in item 1 of the pre-coating liquid phase. The pre-coating material is a material with a body temperature of 40 ~ 300 ° C, and its melting point is higher than that of the pre-coating material among the heat-conducting parts described in item 2 of the first and second paragraphs, It is tin, lead, or the material that can be pre-coated among the heat-conducting parts described in item 2, which is wax or low-melt. The heat transfer element described in item 1 Page VI. Method for filling the gap of patent application, among them. The thickness of the coating for the coating member is U02 ~ 0.5mm 6 and the method of filling the gap as described in the patent application No. 1 ^, which can be a tube-type heat pipe between the heat-conducting parts. The second heat-conducting element is a circle. If the gap in the patent application scope 丄 is filled, the method described in 苴 and the hall can be used as a heat pipe between the heat-conducting elements. The second heat-conducting member is a method for filling the working gap as described in the scope of the patent application, where ^ is a metal rod with a good coefficient of heat transfer between the heat-conducting members. The second heat-conducting member is a method for filling the gap as described in the scope of patent application No. 其中, wherein: the metal plate with good heat transfer coefficient between the heat-conducting members. The first heat conducting member is a kind of heat 10, a kind of heat conducting member which can include the first heat conducting members adjacent to each other. Before the mutual joining, the melting temperature of the first heat conducting member and the pre-coating layer is below 0.002 ~ Between 0.5 mm. A structure filled with a gap between them, a heat conducting member, and at least one of its entire surfaces is provided with a pre-coating layer, and the first and second heat conducting members have a thickness of 11 as described in item 10 of the scope of patent application The structure capable of filling the gap between the heat conducting members is further provided with the pre-coating layer on the surfaces before the first and second heat conducting members are joined to each other. 1 2. The structure that can fill the gap between the heat-conducting parts as described in item 10 of the scope of patent application, in which the pre-coating material is 40 ~ 1235818 6. The scope of patent application is 30 ° C A substance that can be melted into a liquid or fluid, and its melting point is lower than the first and second heat conducting members. 1 3. The structure that can fill the gaps between the heat-conducting parts as described in item 12 of the scope of the patent application, in which the pre-coating material is tin, lead or a low melting point alloy. 14. The structure that can fill the gaps between the heat-conducting parts as described in item 12 of the scope of the patent application. The material of the pre-coating layer is wax, low-temperature thermal conductivity or polymer. 15. The structure that can fill the gap between the heat-conducting parts as described in item 10 of the scope of the patent application, wherein the second heat-conducting part is a circular tube type heat pipe. 16. The structure that can fill the gaps between the heat-conducting parts as described in item 10 of the scope of patent application, wherein the second heat-conducting part is a plate-type heat pipe. 17. The structure that can fill the gaps between the heat-conducting elements as described in item 10 of the scope of the patent application. The second heat-conducting element is a metal rod with a good heat transfer coefficient. 18. The structure that can fill the gap between the heat-conducting parts as described in item 10 of the scope of patent application. The second heat-conducting part is a metal plate with a good heat transfer coefficient. Page 14