TWM517811U - Hot pipe type heat dissipation device - Google Patents

Description

熱管式散熱器Heat pipe radiator

本創作係一種熱管式散熱器，特別係關於一種可增加熱管底側壁面中央與熱源間的接觸壓力，進而提高散熱效益的熱管式散熱器。The present invention relates to a heat pipe type heat sink, in particular to a heat pipe type heat sink which can increase the contact pressure between the center of the side wall surface of the heat pipe and the heat source, thereby improving the heat dissipation efficiency.

現行的熱管式散熱器，如圖4所示，其包含有一導熱塊81、一導熱蓋84、複數熱管82及一鰭片組83；導熱塊81的底面凹設有一蓋板槽811，該蓋板槽811的底面凹設有複數熱管槽812；該導熱蓋84蓋設於該導熱塊81的該蓋板槽811中；各熱管82包含有一中段821及兩連接段822，該等熱管82的中段821分別貫穿該導熱塊81的該等熱管槽812，且設於該導熱塊81與該導熱蓋84之間，該等連接段822分別自該中段821的兩端向上延伸；該鰭片組83套設於該等熱管82的連接段822上。The current heat pipe type heat sink, as shown in FIG. 4, includes a heat conducting block 81, a heat conducting cover 84, a plurality of heat pipes 82, and a fin set 83. The bottom surface of the heat conducting block 81 is recessed with a cover groove 811. The heat dissipation cover 84 is disposed in the cover groove 811 of the heat conducting block 81. The heat pipe 82 includes a middle portion 821 and two connecting portions 822. The middle portion 821 extends through the heat pipe slots 812 of the heat conducting block 81, and is disposed between the heat conducting block 81 and the heat conducting cover 84. The connecting segments 822 extend upward from opposite ends of the middle portion 821, respectively. 83 sets are disposed on the connecting section 822 of the heat pipes 82.

使用時，該導熱蓋84抵靠於熱源，以將熱量傳遞至該等熱管82及該鰭片組83來散熱，而由於該導熱蓋84的外側面為平整面，因此該導熱蓋84可與熱源緊密貼合，以達到較佳的導熱效率；然而，現行的熱管式散熱器的缺點在於，該導熱蓋84本身不僅需要使用導熱效果佳的材質製作而導致成本提高，組裝時還需要多一道流程將該導熱蓋84結合於該導熱塊81，因此無法簡化製程。In use, the heat conductive cover 84 abuts against the heat source to transfer heat to the heat pipes 82 and the fin group 83 for heat dissipation, and since the outer surface of the heat conductive cover 84 is a flat surface, the heat conductive cover 84 can be combined with The heat source is closely attached to achieve better heat conduction efficiency; however, the current heat pipe type heat sink has the disadvantage that the heat conductive cover 84 itself not only needs to be made of a material with good heat conduction effect, but also increases the cost, and requires one more assembly. The process incorporates the thermally conductive cover 84 to the thermally conductive block 81 so that the process cannot be simplified.

有鑑於前述現行的熱管式散熱器之缺點，便有業者研發出另一種熱管式散熱器，如圖5及圖6所示，其不使用導熱蓋，而直接使各熱管92突出於導熱塊91的底面打平形成平整面921，藉此熱管92的平整面921及導熱塊91底面便同樣可緊密貼合於熱源而獲得良好的導熱效率。In view of the shortcomings of the current heat pipe type heat sink, another manufacturer has developed another heat pipe type heat sink. As shown in FIG. 5 and FIG. 6, it does not use a heat conductive cover, but directly causes each heat pipe 92 to protrude from the heat conducting block 91. The bottom surface is flattened to form a flat surface 921, whereby the flat surface 921 of the heat pipe 92 and the bottom surface of the heat conducting block 91 can also be closely adhered to the heat source to obtain good heat conduction efficiency.

然而，上述兩種熱管式散熱器皆有一共同的缺點，熱管式散熱器結合於電路板上時，往往是以兩扣具分別從相對兩側將熱管式散熱器向下扣合於電路板上，而如此便會導致扣具的壓力集中於該導熱蓋82或該等熱管92的相對兩側，而熱源頂面與導熱蓋82中央或熱管92中央的接觸壓力便會不足；尤其有些熱源(像是中央處理器)在封裝製造時，其頂面原本就不平整而有凹陷，如此更甚至使熱源頂面與導熱蓋82中央或熱管92中央之間無法產生接觸壓力；而導熱蓋82中央或熱管92中央相對熱源的接觸壓力不足，便會造成無法有效傳熱而降低散熱效益。However, the above two types of heat pipe heat sinks have a common disadvantage. When the heat pipe heat sink is coupled to the circuit board, the heat pipe heat sinks are respectively fastened from the opposite sides to the circuit board by the two fasteners. Therefore, the pressure of the buckle is concentrated on the opposite sides of the heat conducting cover 82 or the heat pipes 92, and the contact pressure between the top surface of the heat source and the center of the heat conductive cover 82 or the heat pipe 92 is insufficient; especially some heat sources ( For example, the central processing unit, when the package is manufactured, the top surface thereof is not flat and has a recess, so that even the contact between the heat source top surface and the center of the heat conductive cover 82 or the heat pipe 92 cannot be generated; and the heat conductive cover 82 is central. Or the contact pressure of the central portion of the heat pipe 92 relative to the heat source is insufficient, which may result in inefficient heat transfer and reduced heat dissipation efficiency.

有鑑於現行的熱管式散熱器之缺點及不足，本創作提供一種熱管式散熱器，其可增加熱管與熱源的接觸壓力，進而提高散熱效益。In view of the shortcomings and shortcomings of the current heat pipe type radiator, the present invention provides a heat pipe type radiator, which can increase the contact pressure between the heat pipe and the heat source, thereby improving the heat dissipation efficiency.

為達到上述的創作目的，本創作提供一種熱管式散熱器，其包含： 複數熱管，其相互平行，各熱管為一中空管體，各熱管的中空管體具有一中段及兩連接段，該等連接段分別延伸成型於該中段的兩端；該中段的底側壁面中央形成有一弧面，該弧面向下外突有一弧頂，該弧頂形成有一沿管體軸向延伸的突出線，該突出線與該弧面兩側處所連接的延伸線之間具有一距離，該距離介於0.03mm至0.3mm之間； 一鰭片組，其設於該等熱管上。In order to achieve the above-mentioned creative purpose, the present invention provides a heat pipe type heat sink, comprising: a plurality of heat pipes, which are parallel to each other, each heat pipe is a hollow pipe body, and the hollow pipe body of each heat pipe has a middle section and two connecting sections, The connecting segments are respectively extended and formed at two ends of the middle portion; a central portion of the bottom side wall surface of the middle portion is formed with a curved surface, and the arc has an arc top facing downwardly, and the arc top is formed with a protruding line extending along the axial direction of the tubular body. The protruding line has a distance from the extension line connected at both sides of the curved surface, the distance is between 0.03 mm and 0.3 mm; and a fin set is disposed on the heat pipes.

本創作的優點在於，該等熱管的中段之底側壁面中央的弧面相對突出的距離僅介於0.03mm至0.3mm之間，因此該弧面接***整面，且僅些微向下外突，而如此些微外突的弧度便可使該弧面與熱源頂面接觸，並使扣具的壓力集中在該弧面上，進而增加該等熱管之底側壁面中央與熱源間的接觸壓力，以提高散熱效益，藉此可達到較佳的導熱效率。The advantage of the present invention is that the arcuate surface at the center of the bottom side wall surface of the middle section of the heat pipes is relatively protruded between 0.03 mm and 0.3 mm, so that the arc surface is close to the flat surface and only slightly downwards. The arc of such microbial protrusion can make the arc surface contact with the top surface of the heat source, and the pressure of the buckle is concentrated on the arc surface, thereby increasing the contact pressure between the center of the bottom side wall surface of the heat pipe and the heat source, Improve heat dissipation efficiency, thereby achieving better thermal conductivity.

較佳的是，其中各熱管的突出線與該弧面兩側處所連接的延伸線之間的距離，視該等熱管的原始管徑、該等熱管的數量及裝設於該等熱管上的元件的重量而定。Preferably, the distance between the protruding line of each heat pipe and the extension line connected at both sides of the arc surface depends on the original pipe diameter of the heat pipes, the number of the heat pipes, and the heat pipes installed on the heat pipes. Depending on the weight of the component.

較佳的是，其中該熱管式散熱器進一步包含有一導熱塊，該導熱塊套設於該等熱管上，該導熱塊的底面設有複數熱管槽，該等熱管的中段分別貫穿該等熱管槽，且各熱管的弧面突出於該導熱塊的底面。Preferably, the heat pipe type heat sink further comprises a heat conducting block, the heat conducting block is sleeved on the heat pipes, the bottom surface of the heat conducting block is provided with a plurality of heat pipe slots, and the middle sections of the heat pipes respectively penetrate the heat pipe slots And the arc surface of each heat pipe protrudes from the bottom surface of the heat conducting block.

其中該鰭片組套設於該等熱管的連接段上，且包含有複數鰭片，該等鰭片沿著該等熱管之連接段的軸向間隔設置。The fin set is sleeved on the connecting sections of the heat pipes, and includes a plurality of fins disposed along an axial interval of the connecting sections of the heat pipes.

較佳的是，其中該等熱管的連接段分別自該中段的兩端垂直向上延伸。Preferably, the connecting sections of the heat pipes extend vertically upward from opposite ends of the middle section, respectively.

較佳的是，其中該等熱管間隔設置。Preferably, the heat pipes are spaced apart.

如圖1所示，本創作的熱管式散熱器包含有一導熱塊10、複數熱管20及一鰭片組30。As shown in FIG. 1, the heat pipe type heat sink of the present invention comprises a heat conducting block 10, a plurality of heat pipes 20 and a fin set 30.

該導熱塊10的底面設有複數熱管槽11，該等熱管槽11延伸至該導熱塊10的橫向兩側面，並且相互平行及間隔設置。The bottom surface of the heat conducting block 10 is provided with a plurality of heat pipe grooves 11 extending to the lateral sides of the heat conducting block 10 and disposed parallel to each other and at intervals.

該等熱管20分別穿設於該導熱塊10的該等熱管槽11中，並因此相互平行且間隔設置，各熱管20為一中空管體，各熱管20的中空管體具有一中段21及兩連接段22；該等連接段22分別垂直向上延伸成型於該中段21的橫向兩端，且相互平行；該中段21橫向延伸並貫穿相對應的熱管槽11，該中段21的底側壁面中央形成有一弧面211，配合圖1和2所示，該弧面211向下外突有一弧頂2111，該弧頂2111形成有一沿管體軸向延伸的突出線L2；配合圖2所示，該弧面211的突出線與該弧面211兩側處所連接的延伸線L1之間具有一距離D，該距離D介於0.03mm至0.3mm之間，即該弧面211的中央僅向下略微外突，並且仍相當接***整面，在本實施例中，該等熱管20形成該弧面211前的原始管徑為6mm，而前述之距離D介於0.05mm至0.15mm之間，但該等熱管20的原始管徑不以此為限，也可為5mm、6.35mm、8mm、9.52mm及10mm等各種常用尺寸，並不以所列尺寸為限；在較佳實施例中，該距離D視該等熱管20的原始管徑、該等熱管20的數量及裝設於該等熱管20上的元件的重量而定，當該等熱管20的數量及承受的總重量固定時，該距離D與該等熱管20的原始管徑成反比，當該等熱管20的原始管徑及承受的總重量固定時，該距離D與該等熱管20的數量成反比，當該等熱管20的原始管徑及該等熱管20的數量固定時，該距離D與承受的總重量成正比；另外，熱管20成型該弧面211後，其管徑可能會略為增大，而在本實施例中，原始管徑6mm的熱管20成型弧面211後，中段21的最大寬度為6.6mm，高度為4.5mm，而前述之距離D為0.1mm，在此數據下，每根熱管20約可承受22磅(lb)的重量，因此本創作之三根熱管20共可承受約66磅的重量，並且大致適用於40磅至70磅的重量。The heat pipes 20 are respectively disposed in the heat pipe slots 11 of the heat conducting block 10, and thus are disposed parallel to each other and spaced apart from each other. Each heat pipe 20 is a hollow pipe body, and the hollow pipe body of each heat pipe 20 has a middle portion 21 And two connecting sections 22; the connecting sections 22 are vertically and upwardly formed at the lateral ends of the middle section 21 and are parallel to each other; the middle section 21 extends laterally and penetrates the corresponding heat pipe slot 11, and the bottom side wall surface of the middle section 21 A curved surface 211 is formed in the center. As shown in FIG. 1 and FIG. 2, the curved surface 211 has an arc top 2111 protruding downward. The arc top 2111 is formed with a protruding line L2 extending along the axial direction of the tube body. The protruding line of the curved surface 211 has a distance D between the extending line L1 connected to the two sides of the curved surface 211, and the distance D is between 0.03 mm and 0.3 mm, that is, the center of the curved surface 211 is only In the present embodiment, the original tube diameter of the heat pipe 20 before the curved surface 211 is 6 mm, and the distance D is between 0.05 mm and 0.15 mm. However, the original diameter of the heat pipes 20 is not limited thereto, and may be 5 mm, 6.35 mm, 8 mm, 9.52 mm, and 10 mm. The various common dimensions are not limited to the listed sizes. In the preferred embodiment, the distance D depends on the original diameter of the heat pipes 20, the number of the heat pipes 20, and the heat pipes 20 installed on the heat pipes 20. Depending on the weight of the components, when the number of the heat pipes 20 and the total weight to be received are fixed, the distance D is inversely proportional to the original pipe diameter of the heat pipes 20, and the original pipe diameter and the total weight of the heat pipes 20 are taken. When fixed, the distance D is inversely proportional to the number of the heat pipes 20, and when the original pipe diameter of the heat pipes 20 and the number of the heat pipes 20 are fixed, the distance D is proportional to the total weight received; in addition, the heat pipe 20 After the curved surface 211 is formed, the diameter of the curved surface 211 may be slightly increased. In the present embodiment, after the heat pipe 20 having the original diameter of 6 mm is formed into the curved surface 211, the maximum width of the middle portion 21 is 6.6 mm and the height is 4.5 mm. While the aforementioned distance D is 0.1 mm, under this data, each heat pipe 20 can withstand a weight of about 22 pounds (lb), so the three heat pipes 20 of the present invention can withstand a total weight of about 66 pounds, and are generally suitable for 40 Weights up to 70 pounds.

如圖1所示，該鰭片組30套設於該等熱管20的該等連接段22上，且該鰭片組30包含有複數鰭片31，該等鰭片31沿著該等連接段22的軸向間隔設置。此外，該鰭片組上30可視需求而設置風扇等元件。As shown in FIG. 1 , the fin set 30 is sleeved on the connecting segments 22 of the heat pipes 20 , and the fin set 30 includes a plurality of fins 31 along the connecting segments. 22 axial spacing settings. In addition, elements such as fans are provided on the fin set 30 as needed.

本創作製作時，熱管20的弧面211係以模具壓制而成，但不以此為限。At the time of creation of the creation, the curved surface 211 of the heat pipe 20 is pressed by a mold, but is not limited thereto.

本創作使用時，各熱管20的中段21的弧面211向下抵靠於熱源，而由於該弧面211相對突出的距離僅介於0.03mm至0.3mm之間，因此該弧面211接***整面，而僅些微向下外突，而如此些微外突的弧度便可使該弧面211接觸熱源頂面中央，並使扣具的壓力集中在該弧面211上，進而增加熱管20底側壁面中央與熱源間的接觸壓力，以提高散熱效益，藉此可達到較佳的導熱效率。When the present invention is used, the curved surface 211 of the middle portion 21 of each heat pipe 20 abuts against the heat source, and since the curved surface 211 is relatively protruded by a distance of only 0.03 mm to 0.3 mm, the curved surface 211 is nearly flat. The surface is only slightly downwardly convex, and the curvature of the micro-outburst can make the curved surface 211 contact the center of the top surface of the heat source, and the pressure of the buckle is concentrated on the curved surface 211, thereby increasing the bottom side of the heat pipe 20. The contact pressure between the center of the wall and the heat source improves the heat dissipation efficiency, thereby achieving better heat conduction efficiency.

在其他實施例中，如圖3所示，本創作的熱管20A也可不為間隔設置而是並排在一起，如此同樣可發揮前述之眾多功效。In other embodiments, as shown in FIG. 3, the heat pipes 20A of the present invention may also be arranged side by side instead of being spaced apart, so that the aforementioned various functions can be exerted.

在其他實施例中，本創作也可沒有導熱塊，而藉由鰭片組的套設，也可固定各熱管的相對位置，這時該等熱管可間隔設置，也可相互貼靠。In other embodiments, the present invention may also have no heat-conducting blocks, and the relative positions of the heat pipes may be fixed by the nesting of the fin sets. At this time, the heat pipes may be disposed at intervals or may abut each other.

在其他實施例中，該等熱管的連接段也可不垂直於中段，而是相對中段斜向延伸，僅要該等熱管的連接段相互平行，便可讓鰭片組套設進來。In other embodiments, the connecting sections of the heat pipes may not be perpendicular to the middle section, but extend obliquely with respect to the middle section. Only the connecting sections of the heat pipes are parallel to each other, so that the fin sets can be sleeved.

以上所述僅為說明本創作的例示，並非對本創作做任何形式上的限制，本創作所主張之權利範圍自應以申請專利範圍所述為準，而非僅限於上述實施例。任何所屬技術領域中具有通常知識者，在不脫離本創作技術方案的範圍內，當可利用上述揭示的技術內容做出些許更動或修飾為等同變化的等效實施例，但凡是未脫離本創作之技術方案的內容，依據本創作的技術實質對以上實施例作任何簡單修改、等同變化與修改，均仍屬於本創作技術方案的範圍內。The above description is only illustrative of the present invention, and is not intended to limit the scope of the present invention. The scope of the present invention is defined by the scope of the patent application, and is not limited to the above embodiments. Any equivalents of the above-disclosed technical contents may be modified or modified to equivalent variations, without departing from the scope of the present invention. The content of the technical solution, any simple modification, equivalent change and modification of the above embodiment according to the technical essence of the present invention are still within the scope of the technical solution of the present invention.

L1‧‧‧延伸線
L2‧‧‧突出線
D‧‧‧距離
10‧‧‧導熱塊
11‧‧‧熱管槽
20‧‧‧熱管
21‧‧‧中段
211‧‧‧弧面
2111‧‧‧弧頂
22‧‧‧連接段
30‧‧‧鰭片組
31‧‧‧鰭片
20A‧‧‧熱管
81‧‧‧導熱塊
811‧‧‧蓋板槽
812‧‧‧熱管槽
82‧‧‧熱管
821‧‧‧中段
822‧‧‧連接段
83‧‧‧鰭片組
84‧‧‧導熱蓋
91‧‧‧導熱塊
92‧‧‧熱管
921‧‧‧平整面L1‧‧‧ extension line
L2‧‧‧ prominent line
D‧‧‧Distance
10‧‧‧thermal block
11‧‧‧Hot tube trough
20‧‧‧heat pipe
21‧‧‧ middle section
211‧‧‧ curved surface
2111‧‧‧Arc top
22‧‧‧ Connection section
30‧‧‧Fin group
31‧‧‧Fins
20A‧‧‧heat pipe
81‧‧‧heat block
811‧‧‧ cover slot
812‧‧‧Hot tube trough
82‧‧‧heat pipe
821‧‧‧ middle section
822‧‧‧Connection section
83‧‧‧Fin set
84‧‧‧heat cover
91‧‧‧heat block
92‧‧‧heat pipe
921‧‧‧ Flat surface

圖1是本創作一實施例的立體外觀圖。圖2是本創作一實施例的一熱管之中段的軸向剖面圖。圖3是本創作的另一實施例的立體外觀圖。圖4是一現行的熱管式散熱器的立體外觀圖。圖5是另一現行的熱管式散熱器的立體外觀圖。圖6是另一現行的熱管式散熱器的熱管之中段的軸向剖面圖。1 is a perspective view of an embodiment of the present creation. Figure 2 is an axial cross-sectional view of a middle portion of a heat pipe in accordance with an embodiment of the present invention. Figure 3 is a perspective external view of another embodiment of the present creation. 4 is a perspective view of a conventional heat pipe type heat sink. Fig. 5 is a perspective view showing another conventional heat pipe type heat sink. Figure 6 is an axial cross-sectional view of the middle portion of a heat pipe of another current heat pipe type heat sink.

L2‧‧‧突出線 L2‧‧‧ prominent line

10‧‧‧導熱塊 10‧‧‧thermal block

11‧‧‧熱管槽 11‧‧‧Hot tube trough

20‧‧‧熱管 20‧‧‧heat pipe

21‧‧‧中段 21‧‧‧ middle section

211‧‧‧弧面 211‧‧‧ curved surface

22‧‧‧連接段 22‧‧‧ Connection section

30‧‧‧鰭片組 30‧‧‧Fin group

31‧‧‧鰭片 31‧‧‧Fins

Claims (7)

一種熱管式散熱器，其包含： 複數熱管，其相互平行，各熱管為一中空管體，各熱管的中空管體具有一中段及兩連接段，該等連接段分別延伸成型於該中段的兩端；該中段的底側壁面中央形成有一弧面，該弧面向下外突有一弧頂，該弧頂形成有一沿管體軸向延伸的突出線，該突出線與該弧面兩側處所連接的延伸線之間具有一距離，該距離介於0.03mm至0.3mm之間； 一鰭片組，其設於熱管上。A heat pipe type heat sink comprising: a plurality of heat pipes, which are parallel to each other, each heat pipe is a hollow pipe body, and the hollow pipe body of each heat pipe has a middle section and two connecting sections, and the connecting sections are respectively extended and formed in the middle section The two ends of the bottom wall of the middle section are formed with a curved surface, and the arc has an arc top facing downwardly, and the arc top is formed with a protruding line extending along the axial direction of the tube body, and the protruding line and the curved surface are both sides There is a distance between the extension lines connected to the space, the distance is between 0.03 mm and 0.3 mm; a fin group is disposed on the heat pipe. 依據請求項1所述之熱管式散熱器，其中各熱管的突出線與該弧面兩側處所連接的延伸線之間的距離，視該等熱管的原始管徑、該等熱管的數量及裝設於該等熱管上的元件的重量而定。The heat pipe type heat sink according to claim 1, wherein the distance between the protruding line of each heat pipe and the extension line connected at both sides of the arc surface depends on the original pipe diameter of the heat pipes, the number of the heat pipes, and the loading It depends on the weight of the components provided on the heat pipes. 依據請求項1或2所述之熱管式散熱器，其中該熱管式散熱器進一步包含有一導熱塊，該導熱塊套設於該等熱管上，該導熱塊的底面設有複數熱管槽，該等熱管的中段分別貫穿該等熱管槽，且各熱管的弧面突出於該導熱塊的底面。The heat pipe type heat sink according to claim 1 or 2, wherein the heat pipe type heat sink further comprises a heat conducting block, the heat conducting block is sleeved on the heat pipes, and a plurality of heat pipe grooves are arranged on a bottom surface of the heat conducting block, The middle portion of the heat pipe extends through the heat pipe slots, and the arc surface of each heat pipe protrudes from the bottom surface of the heat pipe. 依據請求項1或2所述之熱管式散熱器，其中該鰭片組套設於該等熱管的連接段上，且包含有複數鰭片，該等鰭片沿著該等熱管之連接段的軸向間隔設置。The heat pipe type heat sink according to claim 1 or 2, wherein the fin set is sleeved on the connecting section of the heat pipes, and includes a plurality of fins along the connecting section of the heat pipes Axial spacing settings. 依據請求項1或2所述之熱管式散熱器，其中該等熱管的連接段分別自該中段的兩端垂直向上延伸。The heat pipe type heat sink according to claim 1 or 2, wherein the connecting sections of the heat pipes extend vertically upward from both ends of the middle section, respectively. 依據請求項1或2所述之熱管式散熱器，其中該等熱管間隔設置。A heat pipe type heat sink according to claim 1 or 2, wherein the heat pipes are spaced apart. 依據請求項1或2所述之熱管式散熱器，其中該等熱管並排設置。A heat pipe type heat sink according to claim 1 or 2, wherein the heat pipes are arranged side by side.