TW202144724A - Temperature-uniformizing board structure and temperature-uniformizing board panel - Google Patents

Abstract

A Temperature-uniformizing Board structure and Temperature-uniformizing Board Panel are used to solve the problems of the complexity of the conventional temperature equalizing plate production and the waste of materials. The system includes: a first sheet body; and a second sheet body, the first sheet body and / or the second sheet body has a groove, the groove has a ring edge, the first sheet body and the second sheet body Combined to form a cavity from the groove, the first piece or the second piece and the opposite ring form a liquid injection portion.

Description

The structure of the uniform temperature plate and the uniform temperature plate

The present invention relates to a heat dissipation device, in particular to a temperature-spreading plate structure and a temperature-spreading plate for dissipating heat for electronic components.

Please refer to FIG. 1, which is a conventional vapor chamber 9. The inside of the conventional vapor chamber 9 is filled with a working fluid. The heat source can heat the working fluid and vaporize the working fluid. The gaseous working fluid system Evaporate to the side away from the heat source to release heat and then condense, so that the heat from the heat source can be taken away to achieve the purpose of heat dissipation. A liquid injection convex portion 91 is disposed around the conventional temperature equalizing plate 9 , and the liquid injection convex portion 91 has an opening or a liquid injection pipe communicating with the inside of the uniform temperature plate 9 , thereby injecting the working fluid into the inside of the vapor chamber 9 . When manufacturing the conventional temperature equalizing plate 9, materials must be spent to form the liquid injection convex portion 91, and after the working fluid is injected, the liquid injection convex portion 91 must be cut off and an edge sealing process must be performed. complexity and waste of materials.

In view of this, the conventional vapor chamber structure still needs to be improved.

In order to solve the above-mentioned problems, the purpose of the present invention is to provide a temperature-spreading plate structure and a temperature-spreading plate, which can be easily manufactured.

The next object of the present invention is to provide a temperature uniform plate structure and a uniform temperature plate, which can reduce the cost.

The directional or similar terms used throughout this disclosure, such as "front", "back", "left", "right", "top (top)", "bottom (bottom)", "inside", "outside" , "side surface", etc., mainly refer to the directions of the attached drawings, each directionality or its similar terms are only used to assist the description and understanding of the various embodiments of the present invention, and are not intended to limit the present invention.

The use of the quantifier "a" or "an" for the elements and components described throughout the present invention is only for convenience and provides a general meaning of the scope of the present invention; in the present invention, it should be construed as including one or at least one, and a single The concept of also includes the plural case unless it is obvious that it means otherwise.

Similar terms such as "combined", "combined" or "assembled" mentioned in the whole text of the present invention mainly include the components that can be separated without destroying the components after the connection, or the components can not be separated after being connected, which are common knowledge in the field. It can be selected according to the material of the components to be connected or the assembly requirements.

The vapor chamber structure of the present invention comprises: a first sheet body; and a second sheet body, the first sheet body or/and the second sheet body have a groove, the groove has a ring edge, the first sheet body The body and the second sheet are combined to form a cavity by the groove, and the first sheet or the second sheet and the opposite ring edge form a liquid injection part.

The temperature uniformity plate of the present invention comprises: a first base plate with a plurality of the first sheets, each of the first sheets has a plurality of penetrations around each of the first sheets, and a plurality of penetrations are arranged between the penetrations a connecting rib; and a second substrate having a plurality of the second sheets, each of the second sheets having a plurality of penetrating portions around each, and a connecting rib between each of the penetrating portions, the first substrate In combination with the second substrate, the first sheet body or the second sheet body and the opposite ring edge form a liquid injection part.

Accordingly, in the temperature equalization plate structure and the temperature equalization plate of the present invention, the liquid injection portion can be formed by the annular edge of the first sheet body and the annular edge of the second sheet body, and no additional molding is required. The protruding liquid injection port is used for liquid injection. Compared with the conventional uniform temperature plate, the liquid injection convex part needs to be cut off and edge-sealed. The present invention can simplify the process and achieve the effect of improving production efficiency. In addition, Since the liquid injection part is jointly formed by the ring edge of the first sheet body and the ring edge of the second sheet body, the liquid injection part can be sealed with only a small amount of sealing material, which can To achieve the effect of reducing production costs.

Wherein, the first sheet body or/and the second sheet body have at least one support column, and the support column is located between the first sheet body and the second sheet body. In this way, the strength of the vapor chamber structure can be improved, and the vapor chamber structure can be prevented from being deformed and not easily bent.

Wherein, the first piece has a first opening, or the second piece has a second opening, and the first opening of the first piece or the second opening of the second piece is partially aligned The liquid injection portion is formed by the groove of the second sheet body or the groove of the first sheet body located opposite. In this way, the vapor chamber structure does not need to form additional protruding ports for liquid injection, which has the effect of saving cost.

Wherein, the first sheet body has a first opening portion, the second sheet body has a second opening portion, and the first opening portion and the second opening portion are partially aligned to form the liquid injection portion. In this way, the vapor chamber structure does not need to form additional protruding ports for liquid injection, which has the effect of saving cost.

Wherein, the first opening is a groove on the ring edge, one end of the groove is connected to the groove, and the second opening is a through hole. In this way, the liquid injection portion can be formed by communicating with the overlapping portion of the through hole and the groove.

Wherein, the overlapping portion of the through hole and the groove forms the liquid injection portion, and the maximum dimension of the liquid injection portion is not greater than 5 mm. In this way, the opening can be closed with a small amount of sealing material, and the opening can be easily closed.

Wherein, the overlapping portion of the through hole and the groove forms a circular hole, and the diameter of the circular hole is not greater than 5 mm. In this way, the opening can be closed with a small amount of sealing material, and the opening can be easily closed.

Wherein, the overlapping portion of the through hole and the groove forms a rectangular opening, and the distance between any opposite sides of the rectangular opening is not greater than 5 mm. In this way, only a small amount of sealing material is needed to close the opening, which has the effect of easily closing the opening.

Wherein, a closure is combined with the liquid injection part. In this way, it is possible to prevent the working fluid from leaking out of the liquid injection portion.

Wherein, the sealing member is solder or curing adhesive. In this way, the liquid injection part can be easily sealed, and the sealing step of the liquid injection part can be simplified.

Wherein, the connecting ribs of the first substrate and the connecting ribs of the second substrate are mutually displaced. In this way, each of the connecting ribs after the first substrate and the second substrate are combined can be easily cut, which has the effect of simplifying the process.

Wherein, two sides of each of the connecting ribs of the first substrate each have an inner notch, and the inner notch is formed by concave inwards from the peripheral edge of the ring edge. In this way, the fracture of the connecting rib after cutting will not protrude from the side peripheral surface of each ring edge, and the processing step of grinding and trimming the cut part of the connecting rib can be omitted, which has the effect of simplifying the process. .

Wherein, two sides of each of the connecting ribs of the second substrate each have an inner notch, and the inner notch is formed by concave inwards from the peripheral edge of the ring edge. In this way, the fracture of the connecting rib after cutting will not protrude from the side peripheral surface of each ring edge, and the processing step of grinding and trimming the cut part of the connecting rib can be omitted, which has the effect of simplifying the process. .

In order to make the above-mentioned and other objects, features and advantages of the present invention more obvious and easy to understand, the preferred embodiments of the present invention are exemplified below, and are described in detail as follows in conjunction with the accompanying drawings:

Please refer to FIG. 2, which is the first preferred embodiment of the vapor chamber structure T of the present invention, which includes a first sheet body 1 and a second sheet body 2, the first sheet body 1 and the first sheet body 1 The two pieces of body 2 are connected to each other.

The vapor chamber structure T can be made of a material with high thermal conductivity such as copper or aluminum, so that it can be used to directly or indirectly connect a heat source to dissipate heat from the heat source. The heat source can be, for example, a mobile phone , the central processing unit of computers or other electrical products, or electronic components such as chips that generate heat due to operation on the circuit board. The vapor chamber structure T has a chamber that can be filled with a working fluid. The working fluid can be water, alcohol or other low-boiling liquids. Preferably, the working fluid system can be a non-conductive liquid, so that the working fluid can be It absorbs heat from the liquid state and evaporates into a gaseous state. Preferably, the chamber can be in a vacuum closed state to prevent the working fluid from dissipating after forming a gaseous state, and to prevent the interior from being occupied by air and compressed into the space after the working fluid forms a gaseous state, and then affect the cooling efficiency.

The first sheet body 1 may have a groove 11 for containing the working fluid, so that heat can be transferred between the first sheet body 1 and the working fluid, for example, the first sheet The body 1 can be used as a heat absorbing sheet, and the first sheet body 1 can be used to connect the heat source to absorb the heat generated by the heat source.

The groove 11 can be processed by stamping or die casting, so that the periphery of the groove 11 has a ring edge 12 , the groove 11 can be formed by bending, or the groove 11 can be formed by an etching process, for example For example, it can be formed by dry etching, wet etching or plasma etching. In this way, the groove 11 can be simply formed on the first sheet 1, and the groove 11 can be precisely controlled in units of less than mm depth. For example, in small electronic products, the thickness of the thinned vapor chamber structure T is not more than 1 mm, and the groove 11 can be formed in the thin vapor chamber structure T by etching, which reduces the difficulty of processing effect. The first sheet body 1 and the second sheet body 2 can form a liquid injection part P and a chamber S, and the liquid injection part P communicates with the chamber S, thereby making the temperature equalizing plate structure T The working fluid can be injected into the chamber S from the liquid injection part P (to be described in detail later).

The second sheet body 2 can be butted with the first sheet body 1, so that the groove 11 of the first sheet body 1 can form the chamber S, and the chamber S can be used for accommodating the working fluid to The purpose of heat dissipation is achieved by the evaporation and condensation cycle of the working fluid, and heat can be transferred between the second sheet 2 and the working fluid. For example, the second sheet 2 can be used as a heat radiating sheet, So that the heat carried by the working fluid can be transferred out by the second sheet body 2, for example, can be transferred to the outside for dissipation, or the second sheet body 2 can be connected such as fins, metal pipes or fans, etc., other thermal conductivity. The component of the effect is to take the heat away from the second sheet body 2 to achieve the purpose of heat dissipation.

Please refer to FIG. 3 , which is the second preferred embodiment of the vapor chamber structure T of the present invention. In this embodiment, the second sheet body 2 may also have at least one groove 21 , and the groove 21 is also It can be formed by stamping, die casting or the above-mentioned etching process, so that a ring edge 22 is formed on the periphery of the groove 21, and the groove 21 of the second body 2 can be aligned with the groove 11 of the first body 1. The groove 21 of the second sheet body 2 and the groove 11 of the first sheet body 1 can jointly form the cavity S.

Referring to Figures 2 and 3, the first sheet body 1 may also have at least one support column 13, or the second sheet body 2 may also have at least one support column 23, or the first sheet body 1 may also have at least one support column 23. Each of the second sheet body 2 has at least one support column 13, 23, the support column 13 of the first sheet body 1 can abut the second sheet body 2, and the support column 23 of the second sheet body 2 It can be in contact with the first sheet body 1, or, the support column 13 of the first sheet body 1 can be in contact with the support column 23 of the second sheet body 2, and the support columns 13 and 23 can be connected to the The first sheet body 1 or the second sheet body 2 is separately manufactured and then combined with the first sheet body 1 or the second sheet body 2 in an assembled manner. Alternatively, the support columns 13 and 23 can be integrally formed in the The first sheet body 1 or the second sheet body 2 is not limited in the present invention, whereby the strength of the temperature chamber structure T can be improved, and the temperature chamber structure T can be prevented from being deformed, and bending is not easy to occur. folding effect.

Please continue to refer to FIGS. 2 to 4. In this embodiment, the support column 23 of the second sheet body 2 is aligned with the support column 13 of the first sheet body 1. Preferably, it can be welded by spot welding. The support columns 13 and 23 can be welded together by means of lightning welding, thereby enhancing the strength of the temperature chamber structure, preventing deformation of the temperature chamber structure T, and making it difficult to bend.

Please continue to refer to Figs. 2 to 5, the first sheet body 1 or the second sheet body 2 can form the liquid injection portion P from the opposite ring edges 12 and 22. In this way, the temperature equalizing plate structure T can not need to form an extra protruding port for liquid injection, which has the effect of saving cost. Specifically, the first sheet body 1 or the second sheet body 2 can be combined with the opposite ring edges 12, 22 to form the chamber S by the grooves 11, 21, and the liquid injection part P is located in the ring The sides 12 and 22 are used to form part of the chamber S, that is, the liquid injection part P can be adjacent to the periphery of the first sheet 1 and the periphery of the second sheet 2 to communicate with the chamber S. For example, the first sheet 1 may have a first opening 14 , the second sheet 2 may have a second opening 24 , and the first opening 14 and the second opening 24 are partially aligned. position, and the first opening 14 or/and the second opening 24 communicate with the chamber S. The first opening 14 and the second opening 24 can be openings of various geometric shapes, which are not limited by the present invention, and the first opening 14 and the second opening 24 can be respectively located in the first sheet body 1 and the rim or perimeter of the second sheet 2 . For example, the first opening 14 can be a groove 141 located at the edge 12 of the first sheet body 1 , and one end of the first opening 14 is connected to the groove 11 . The second opening 24 may be a through hole 241 , the through hole 241 may be a circular hole adjacent to the periphery of the second sheet body 2 , or the through hole 241 may be concave inward from the periphery of the second sheet body 2 A notch hole is formed, and the second opening portion 24 is partially aligned with the first opening portion 14 , and the through hole 241 is partially aligned with the groove 141 . In addition, when the second sheet body 2 has the ring edge 22, the second opening portion 24 can be the above-mentioned groove 141, and the first opening portion 14 can be the above-mentioned through hole 241, and the present invention does not be restricted.

In the embodiment shown in FIGS. 3 to 5, the first sheet body 1 and the second sheet body 2 respectively have the ring edges 12, 22, and the first opening 14 and the second opening 24 are located in the The ring edges 12 and 22, in this way, can be connected by the overlapping part of the through hole 241 and the groove 141, so that the second opening part 24 communicates with the outside to form the liquid injection part P, preferably, the The maximum size of the hole of the liquid injection part P is not more than 5 mm. For example, the overlapping part of the through hole 241 and the groove 141 forms a circular hole, and the diameter of the circular hole is not more than 5 mm, or the through hole is not larger than 5 mm. 241 and the overlapping part of the groove 141 form a rectangular opening, and the distance between any opposite sides of the rectangular opening is not more than 5 mm, whereby the working fluid is injected from the liquid injection part P to the chamber S. Afterwards, the liquid injection part P can be sealed by a sealing member C. The sealing member C can be, for example, solder or a curing adhesive to fill the liquid injection part P. In this way, the liquid injection part P can be easily The sealing of the liquid injection portion P has the effect of simplifying the step of sealing the liquid injection portion P. As shown in FIG.

Please continue to refer to FIGS. 6 and 7, which are the third preferred embodiment of the vapor chamber structure T of the present invention, and the first sheet body 1 may have the first opening 14, or the second sheet The body 2 has the second opening portion 24 , and the first opening portion 14 of the first sheet body 1 or the second opening portion 24 of the second sheet body 2 is partially aligned with the opposite groove 21 of the second sheet body 2 or the groove 11 of the first sheet body 1 . For example, the first sheet body 1 does not have the first opening 14, but the second opening 24 is formed in the second sheet 2, so that the second opening 24 can be partially aligned with the first opening 24. The groove 11 of the one-piece body 1 is used to form the liquid injection part P. For another example, the second opening 24 can be the above-mentioned circular hole, and a part of the circular hole is aligned with the groove 11, or the second opening 24 can be the above-mentioned notch hole, the notch hole is recessed inward from the peripheral edge of the second sheet body 2 to extend beyond the ring edge 12 of the first sheet body 1 to partially align with the groove 11. The portion where the grooves 11 overlap form the liquid injection portion P. As shown in FIG.

Please refer to Figures 8a and 8b, which is a preferred embodiment of the temperature uniformity plate D of the present invention. The temperature uniformity plate D includes a first substrate (panel) 3 and a second substrate (panel) ) 4, the first substrate 3 can simultaneously form several structures of the first sheet 1 of the above-mentioned embodiments, and the second substrate 4 can simultaneously form several second sheets of the above-mentioned embodiments. 2 Construction. As shown in Fig. 8a, there are a plurality of penetrating portions 31 around each of the plurality of ring edges 12, a connecting rib 32 is formed between the plurality of penetrating portions 31, and the plurality of penetrating portions 31 are connected to each other. Can be a stamp-hole or slot. In addition, the structure without the ring edge in the above-mentioned embodiments can also be formed only by the plurality of penetration portions 31 . As shown in Fig. 8b, similarly, there are a plurality of penetrating portions 41 around each of the plurality of ring edges 22, and a connecting rib 42 is formed between the plurality of penetrating portions 41. The plurality of penetrating portions 41 are surrounded to form a structure without a ring edge in the above embodiments (such as the second sheet 2 in FIG. 2 ), and the first substrate 3 and the second substrate 4 can be combined to form a phase A plurality of the first pieces 1 and a plurality of the second pieces 2 are combined, for example, the grooves 11 of the first substrate 3 and the grooves 21 of the second substrate 4 can be aligned with each other, thereby , and by cutting off the connecting ribs 32 and 42, several temperature equalizing plate structures T can be obtained.

Please refer to Figures 9 and 10, it is worth noting that the connecting ribs 32 of the first substrate 3 and the connecting ribs 42 of the second substrate 4 may be mutually displaced in an uncorresponding manner. After being combined with the second substrate 4, since the connecting ribs 32, 42 are mutually displaced, the connecting ribs 32, 42 can be easily cut, which has the effect of easy cutting. Preferably, two sides of each connecting rib 32 of the first substrate 3 each have an inner notch 33, and the inner notch 33 can be formed by concave inward from the peripheral edge 121 of the ring edge 12, so, When the connecting ribs 32 of the inner recess 33 are cut along the L line, the remaining connecting ribs 32 will not exceed the surface of the peripheral edge 121 of each ring edge 12, and the connecting ribs can be omitted. The processing step of grinding and trimming the cut part of 32 has the effect of simplifying the process.

Similarly, two sides of each connecting rib 42 of the second base plate 4 may have an inner notch 43, and the inner notch 43 may be formed by concave inward from the peripheral edge 221 of the ring edge 22, thus, When the connecting ribs 42 of the inner recess 43 are cut along the L line, the remaining connecting ribs 42 will not exceed the surface of the peripheral edge 221 of each ring edge 22, so the connecting ribs can be omitted. The processing step of grinding and trimming the cut part of 42 has the effect of simplifying the process.

To sum up, the temperature uniformity plate structure and the temperature uniformity plate of the present invention can form the liquid injection part by the ring edge of the first sheet body and the ring side of the second sheet body together, and it is not necessary to An extra protruding liquid injection port is formed for liquid injection. Compared with the conventional temperature equalizing plate, which needs to be cut off and edge-sealed, the present invention can simplify the process and achieve the effect of improving production efficiency. In addition, since the liquid injection part is jointly formed by the ring edge of the first sheet body and the ring edge of the second sheet body, the liquid injection part can be sealed with only a small amount of sealing material. The system can achieve the effect of reducing production costs.

Although the present invention has been disclosed by the above-mentioned preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make various changes and modifications relative to the above-mentioned embodiments without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the patent application attached hereto.

﹝this invention﹞ 1: The first body 11,21: Groove 12,22: Ring edge 121, 221: Perimeter 13,23: Support Columns 14: The first opening 141: Groove 2: The second body 24: Second opening 241: Through hole 3: The first substrate 31,41: Penetration 32,42: Connecting ribs 33,43: Inner notches 4: Second substrate P: Liquid injection part S: Chamber C: Closure T: Vapor chamber structure D: uniform temperature sheet ﹝Accustomed ﹞ 9: uniform temperature plate 91: Injection convex part

[Picture 1] A conventional isothermal plate diagram. [Fig. 2] An exploded perspective view of the first embodiment of the vapor chamber of the present invention. [Figure 3] An exploded perspective view of the second embodiment of the vapor chamber of the present invention. [FIG. 4] A combination diagram of an embodiment of the vapor chamber of the present invention. [Fig. 5] An enlarged view of A as shown in Fig. 4. [Fig. 6] An exploded perspective view of the third embodiment of the vapor chamber of the present invention. [Fig. 7] The combination diagram of the temperature equalizing plate according to the third embodiment of the present invention. [Fig. 8a] The top view of the temperature uniformity plate of the present invention with the first sheet body. [FIG. 8b] A plan view of the isothermal sheet plate of the present invention having the second sheet body. [Fig. 9] An enlarged view of the partial structure of the present invention after the temperature uniformity sheet is combined. [Fig. 10] An enlarged view of B as shown in Fig. 9.

1: The first body

11,21: Groove

12,22: Ring edge

13,23: Support Columns

14: The first opening

141: Groove

2: The second body

24: Second opening

241: Through hole

T: Vapor chamber structure

Claims (14)

A vapor chamber structure comprising: a first sheet; and A second sheet body, the first sheet body or/and the second sheet body has a groove, the groove has a ring edge, the first sheet body and the second sheet body are combined to form a cavity by the groove , the first sheet body or the second sheet body and the opposite ring edge form a liquid injection part. The vapor chamber structure of claim 1, wherein the first sheet body or/and the second sheet body have at least one support column, and the support column is located between the first sheet body and the second sheet body. The vapor chamber structure of claim 1, wherein the first sheet has a first opening, or the second sheet has a second opening, and the first opening of the first sheet or the first opening The second openings of the two sheets partially face the opposite grooves of the second sheet or the first sheet to form the liquid injection part. The vapor chamber structure of claim 1, wherein the first sheet body has a first opening, the second sheet has a second opening, and the first opening and the second opening are partially opposite to each other. position to form the injection part. The vapor chamber structure of claim 4, wherein the first opening is a groove on the ring edge, one end of the groove is connected to the groove, and the second opening is a through hole. The temperature equalizing plate structure of claim 5, wherein the overlapping portion of the through hole and the groove forms the liquid injection portion, and the maximum dimension of the liquid injection portion is not greater than 5 mm. The vapor chamber structure of claim 6, wherein the overlapping portion of the through hole and the groove forms a circular hole, and the diameter of the circular hole is not greater than 5 mm. The vapor chamber structure of claim 6, wherein the overlapping portion of the through hole and the groove forms a rectangular opening, and the distance between any opposite sides of the rectangular opening is not greater than 5 mm. The temperature equalizing plate structure of claim 5, wherein a sealing member is combined with the liquid injection part. The vapor chamber structure according to claim 9, wherein the sealing member is solder or curing adhesive. A uniform temperature plate, comprising: A first substrate, having a plurality of first sheets of the temperature equalizing plate structure according to any one of claims 1 to 10, each of the first sheets has a plurality of penetrating parts around each, and each of the penetrating parts is The interlock has a connecting rib; and a second substrate, comprising a plurality of second sheets of the temperature chamber structure according to any one of claims 1 to 10, each of the second sheets has a plurality of penetrating portions around each, and each of the penetrating portions has a plurality of penetrating portions around it. There is a connecting rib in the middle, the first base plate and the second base plate are combined, and the first sheet body or the second sheet body and the opposite ring edge form a liquid injection part. The temperature equalizing plate as claimed in claim 11, wherein the connecting ribs of the first substrate and the connecting ribs of the second substrate are mutually displaced. The temperature equalizing plate material according to claim 11, wherein two sides of each of the connecting ribs of the first base plate each have an inner notch, and the inner notch is formed by concave inwards from the peripheral edge of the ring edge. The temperature equalizing plate as claimed in claim 11, wherein each of two sides of each of the connecting ribs of the second base plate has an inner notch, and the inner notch is formed by concave inwards from the peripheral edge of the ring edge.

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