TW201824475A - Heat dissipation unit and thermal module thereof - Google Patents

Abstract

A heat dissipation unit and a thermal module thereof. The heat dissipation unit includes a base seat and a first radiating fin assembly. The base seat has a first side and a second side. The first radiating fin assembly is composed of multiple first radiating fins. Two ends of each first radiating fin are respectively formed with a first end edge and a second end edge disposed on the first side. The respective first radiating fins are arranged with the height and width gradually increased. The first radiating fin is formed with at least one first support section and a first opening in a position corresponding to the first support section. The first support section abuts against and supports another first radiating fin. By means of the structural design of the first support section, the structural strength of the radiating fins is greatly enhanced and the manufacturing cost is lowered.

Description

Cooling unit and cooling module

The invention relates to a heat dissipation unit and a heat dissipation module thereof, in particular to a heat dissipation unit and a heat dissipation module which can greatly strengthen the structural strength of the heat dissipation fins and reduce the production cost.

According to the advancement of the technology age, the operating efficiency of electronic components is getting higher and higher, so that the functional requirements of the heat sink are also increasing. The conventional heat sinks have greatly adopted stacked cooling fins in order to increase the heat dissipation efficiency. Chip group, and continue to develop and improve on the cooling fins, so high-efficiency heat sinks have become one of the most important research and development priorities in the industry today. Take the host computer as an example. The internal central processing unit (CPU) generates most of the heat. In addition, when the central processing unit gradually increases in heat, it will reduce the performance of the execution, and when the heat accumulation is higher than its allowable limit, it will It will force the computer to crash, and in severe cases, it may cause damage; moreover, in order to solve the problem of electromagnetic wave radiation, the computer host is usually closed with a chassis shell, so how to centrally process the unit and other heat-generating components (or called The rapid extraction of thermal energy from components) has become an important issue. Please refer to FIG. 1 for a perspective view of a conventional heat dissipation unit. In a conventional heat sink fin design, the heat sink fin group 1 is mainly composed of a plurality of heat sink fins 11 which are made of thin metal. The plate is stamped, and a folded edge 111 is bent and extended near the two ends of the top edge, and a buckled end 1112 and a buckled portion 1111 are provided on the folded edge 111. When the heat dissipation fin 11 and another heat dissipation fin When 11 is used as a stack combination, the fold 111 provided on the front-side heat-dissipating fin 11 is in contact with the flat surface 112 of the heat-dissipating fin 11 on the back-end and abuts on the plane 112, so that the The buckling end 1112 is hooked on the buckling part 1111 of the rear heat dissipation fin 11 to combine the heat dissipation fin 11 with another heat dissipation fin 11, but since the plurality of heat dissipation fins 11 are stacked and fastened to each other, there is no actual support force, and Because the heat dissipation fins 11 are stamped and cut from a thin metal plate, the heat dissipation fins 11 are too thin and have insufficient strength. Often, the structural strength of the heat dissipation fins 11 is easily affected by the uneven force of the pressing force. Destruction causes bending, distortion or other deformation. As mentioned above, the conventional method has the following disadvantages: 1. It cannot withstand large compression; 2. It causes deformation problems. Therefore, how to solve the above-mentioned problems and shortcomings of the custom, that is, where the inventor of this case and the relevant manufacturers engaged in this industry are eager to study and improve.

Therefore, in order to effectively solve the above problems, the main object of the present invention is to provide a heat dissipation unit that can greatly enhance the structural strength of the heat dissipation fins. A secondary object of the present invention is to provide a heat dissipation unit capable of reducing production costs. A secondary object of the present invention is to provide a heat radiation unit capable of improving deformation problems. A secondary object of the present invention is to provide a heat dissipation module capable of greatly enhancing the structural strength of the heat dissipation fins. A secondary object of the present invention is to provide a heat dissipation module capable of reducing production costs. A secondary object of the present invention is to provide a heat dissipation module capable of improving deformation problems. To achieve the above object, the present invention provides a heat dissipation unit including a base and a first heat dissipation fin group, the base having a first side and a second side, the first heat dissipation fin group is composed of A plurality of first heat dissipation fins, each of which forms a first end edge and a second end edge respectively and is correspondingly arranged on the first side, and each first heat dissipation fin is The first heat dissipation fins are arranged in an ascending and descending manner, and at least one first support portion is provided and a first opening is formed at the first support portion, and the first support portion is correspondingly abutted to another first heat dissipation portion. Fins. To achieve the above object, the present invention provides a heat dissipation module including a heat dissipation unit and a heat pipe. The heat dissipation module includes a base, a first heat dissipation fin group and a second heat dissipation fin group. The base has a first side and a second side. The first heat dissipation fin group is composed of a plurality of first heat dissipation fins. The two ends of the first heat dissipation fins respectively form a first end edge and a first The two end edges are correspondingly arranged on the first side, and each first heat dissipation fin is arranged in a gradually increasing arrangement, and the first heat dissipation fin is provided with at least one first support portion and corresponds to the first support portion. A first opening is formed there, and the first support portion corresponds to another first heat dissipation fin. The second heat dissipation fin group is composed of a plurality of second heat dissipation fins. A third end edge and a fourth end edge are respectively formed at the two ends and are respectively disposed on the second side, and each second heat dissipation fin is arranged in an expanding arrangement, and the second heat dissipation fin is provided with at least one first A second opening is formed at the two support portions and corresponding to the second support portion, and the second support portion corresponds to the abutment. To the other second heat dissipating fins, the heat pipe having a first end and a second end and a heat conductive portion, the first and second ends of the corresponding line penetrates the heat dissipating unit. Through the design of the structure of the present invention, the first support portion opened by the first heat dissipation fin abuts against another first heat dissipation fin, which can greatly strengthen the structural strength of the heat dissipation fin, and due to the first support, The structure formed by these first heat-dissipating fins has the effect of reducing the production cost in addition to increasing the structural strength.

The above-mentioned object of the present invention and its structural and functional characteristics will be described based on the preferred embodiments of the drawings. Please refer to FIGS. 2A and 2B, which are a perspective view, a three-dimensional combined view, and an enlarged view of the first embodiment of the heat dissipation unit of the present invention. As shown in the figure, a heat dissipation unit 2 includes a base 21 and a first heat sink. The fin set 22, the base 21 has a first side 211 and a second side 212. In this embodiment, the first side 211 of the base 21 is further provided with at least a first groove 2111. As shown in FIG. 3, the first side 211 of the base 21 is in a planar state; the aforementioned first heat dissipation fin group 22 is composed of a plurality of first heat dissipation fins 221, and the first heat dissipation fins 221 A first end edge 222 and a second end edge 223 are respectively formed at two ends of the sheet 221, and the first and second end edges 222 and 223 are correspondingly embedded in the first groove 2111 of the first side 211. In an embodiment, as shown in FIG. 3, which is the second embodiment of the present invention, the aforementioned first and second end edges 222 and 223 further extend a first joint portion 226 and a second joint portion 227, respectively. The first and second joint portions 226 and 227 are fixed on the first side 211 by welding or gluing; each first heat dissipation fin 221 is Increasingly and gradually expanding and arranged from the inside to the outside, each first heat dissipation fin 221 further has a first surface 221a and a second surface 221b, and the second heat dissipation fin 221 is defined by the second surface 221b opens at least one first support portion 224 toward the first surface 221a, and a first opening 225 is formed at the first heat dissipation fin 221 corresponding to the first support portion 224, and the first support portion 224 Corresponds to the second surface 221b of another first heat dissipation fin 221. In this embodiment, the first heat dissipation fin 221 has a rectangular shape. In actual implementation, it can be changed according to user needs The shape of the first heat-dissipating fin 221, in other words, the shape of the first heat-dissipating fin 221 can also be semi-circular, triangular, polygonal, or other geometric shapes (not shown in the figure). The number, position, and size of the sections 224 can also be adjusted according to the needs of the user, and the first support sections 224 can be arranged on the first surface 221a regularly or irregularly, in other words, as long as the The first supporting portion 224 can be abutted against. The structural form and method of the second surface 221b of the other first heat dissipation fin 221 are all within the protection scope of the present invention. Through the design of the structure of the present invention, the first heat dissipation fin 221 is opened on the first heat dissipation fin 221. The first support portion 224 abuts against the second surface 221b of the other first heat dissipation fin 221, which can improve the conventional plurality of heat dissipation fins when they are stacked and squeezed, resulting in insufficient strength and deformation of the heat dissipation fins. According to the structural design of the first support portion 224, the structural strength of the heat dissipation fins can be greatly enhanced, and because the first support portion 224 is a structure formed by the first heat dissipation fins 221, in addition to In addition to increasing structural strength, it also has the effect of reducing production costs. Please refer to FIG. 4, which is a perspective view of a third embodiment of the heat dissipation unit according to the present invention. Some components of the heat dissipation unit and the corresponding relationships between the components are the same as the aforementioned heat dissipation unit, so they are not repeated here. The main difference between the heat dissipating unit and the foregoing is that a second heat dissipating fin group 23 is composed of a plurality of second heat dissipating fins 231, and two ends of the second heat dissipating fins 231 form a third end edge 232, respectively. And a fourth end edge 233, each of the second heat radiation fins 231 is gradually increasing and arranged on the first side 211 in order from the inside to the outside, and each of the second heat radiation fins 231 has one A third surface 231a and a fourth surface 231b, and at least one second support portion 234 is provided on the second heat dissipation fin 231 from the fourth surface 231b toward the third surface 231a, and the second support portion 234 A second opening 235 is formed at the second support portion 234 corresponding to the heat dissipation fin 231, and the second support portion 234 is abutted against the fourth surface 231b of the other second heat dissipation fin 231. In this embodiment, The arrangement of the first and second heat dissipation fin groups 22 and 23 is adjacent and It is disposed on the first side 211. In one embodiment, at least one fan (not shown in the figure) can be connected to one side of the heat dissipating unit 2. Therefore, when the fan forcibly introduces heat dissipation airflow, the first The first and second support portions 224 and 234 on the second and second heat dissipation fin groups 22 and 23 not only do not affect the smoothness of the airflow, but also greatly strengthen the structural strength of the heat dissipation fins and achieve the aforementioned effects. Please refer to FIG. 5 and FIG. 4 together, which are exploded cross-sectional views of a fourth embodiment of a heat dissipation unit according to the present invention. Some components of the heat dissipation unit and the corresponding relationships between the components are the same as the aforementioned heat dissipation unit. Therefore, the details are not repeated here, but the main difference between the heat dissipation unit and the foregoing is that the second side 212 of the base 21 is further provided with at least a second groove 2121, and the third of the second heat dissipation fin 231 The four end edges 232 and 233 are embedded in the second groove 2121. In other words, the first and second heat dissipation fin groups 22 and 23 are respectively disposed on the first and second sides 211 of the base 21. 212. In an embodiment, please refer to FIG. 6 and FIG. 5 together. The third and fourth end edges 232 and 233 further extend a third joint portion 236 and a fourth joint portion 237, respectively. The third and fourth joints 236 and 237 are attached to the second side 212. In other words, the third and fourth joints 236 and 237 are fixed to the place by welding or gluing through the third and fourth joints 236 and 237. On the second side 212, the aforementioned effects can also be achieved. Please refer to Figs. 7A and 7B and Figs. 2A and 4 together, which are exploded and perspective views of the first embodiment of the heat sink module of the present invention. As shown in the figure, a heat sink module 6 includes a A heat dissipation unit 2 and a heat pipe 3, the heat dissipation unit 2 includes a base 21, a first heat dissipation fin group 22 and a second heat dissipation fin group 23, and the base 21 has a first side 211 and a second Side 212. In this embodiment, the first and second side systems 211 and 212 respectively have at least one first groove 2111 and at least one second groove 2121. Alternatively, as shown in FIG. 6, the base The first and second sides 21 and 212 of 21 are in a planar state; the aforementioned first heat dissipation fin group 22 is composed of a plurality of first heat dissipation fins 221, and the two ends of the first heat dissipation fins 221 are respectively formed A first end edge 222 and a second end edge 223, and the first and second end edges 222 and 223 are correspondingly disposed in the first groove 2111 of the first side 211, and each first heat dissipation fin 221 is gradually increasing and is arranged from the inside to the outside. Each first heat dissipation fin 221 further has a first surface 221a and a second surface 221b. At least one first support portion 224 is formed on a heat dissipation fin 221 from the second surface 221b toward the first surface 221a, and a first support portion 224 is formed on the first heat dissipation fin 221 corresponding to the first support portion 224. An opening 225, the first supporting portion 224 abuts against the second surface 221b of another first heat radiation fin 221; the aforementioned second heat radiation fin group 23 is composed of a plurality of second heat radiation fins 231 A third end edge 232 and a fourth end edge 233 are respectively formed at two ends of the second heat dissipation fins 231, and each of the second heat dissipation fins 231 is gradually expanded and arranged on the second from the inside to the outside. In the second groove 2121 of the side 212, each of the second heat dissipation fins 231 further has a third surface 231a and a fourth surface 231b, and the second heat dissipation fins 231 face from the fourth surface 231b toward At least one second support portion 234 is provided in the direction of the third surface 231a, and a second opening 235 is formed at the second support portion 234 corresponding to the second heat dissipation fin 231, and the second support portion 234 corresponds to Abut against the fourth surface 231b of another second heat dissipation fin 231; in an embodiment, the 7A, 7B The heat pipe 3 and the heat source 5 shown in FIG. 6 are assembled with the heat dissipation unit 2 disclosed in FIG. 6. The first and second end edges 222 and 223 respectively extend a first joint portion 226 and a second joint portion 227. The third and fourth end edges 232 and 233 further extend a third joint portion 236 and a fourth joint portion 237, respectively. The first and second joint portions 226 and 227 and the third and fourth joint portions 236 and 237 are transparent. The welding method or the gluing method is fixed on the first and second sides 211 and 212, respectively; the aforementioned heat pipe 3 has a first end 31, a second end 32, and a heat conducting portion 33, and the first and second sides The ends 31 and 32 correspond to the heat dissipating unit 2. The shape of the heat pipe 3 can be U-shaped or sloping. A heat source 5 is attached to the heat-conducting portion 33 and can pass through the heat-conducting portion. 33 transfers the heat of the heat source 5 to the first and second ends 31 and 32 and then to the heat dissipation module 6 for heat dissipation; through the design of the structure of the present invention, the first heat dissipation fin The first support portion 224 opened on 221 abuts against the second surface 221b of the other first heat radiation fin 221 and the second heat radiation fin 231 The second support portion 234 opened above abuts against the fourth surface 231b of the other second heat radiation fin 231, which can improve the conventional plurality of heat radiation fins which are too thin when they are stacked and squeezed, resulting in insufficient strength and the heat radiation fins. The deformation of the fins can greatly enhance the structural strength of the heat dissipation fins through the structural design of the first and second support portions 224 and 234. Since the first and second support portions 224 and 234 are formed by the first and second support portions 224 and 234, The structure formed by the two heat dissipation fins 221 and 231 not only increases the structural strength, but also has the effect of reducing production costs. As described above, the present invention has the following advantages compared with the conventional one: 1. The structural strength of the heat dissipation fins is greatly enhanced; 2. The production cost is greatly reduced; 3. The deformation problem is improved. The present invention has been described in detail above, but the above is only one preferred embodiment of the present invention, and the scope of implementation of the present invention cannot be limited. That is, all equivalent changes and modifications made in accordance with the scope of the application of the present invention shall still fall within the scope of patent of the present invention.

2‧‧‧Cooling Unit

21‧‧‧ base

211‧‧‧first side

2111‧‧‧First groove

212‧‧‧second side

2121‧‧‧Second groove

22‧‧‧The first cooling fin group

221‧‧‧The first cooling fin

221a‧‧‧First surface

221b‧‧‧Second surface

222‧‧‧first edge

223‧‧‧ second edge

224‧‧‧First support

225‧‧‧first opening

226‧‧‧First joint

227‧‧‧Second Joint

23‧‧‧Second heat dissipation fin group

231‧‧‧Second cooling fin

231a‧‧‧ Third surface

231b‧‧‧ fourth surface

232‧‧‧ third edge

233‧‧‧ fourth edge

234‧‧‧second support

235‧‧‧Second opening

236‧‧‧third joint

237‧‧‧Fourth Joint

3‧‧‧ heat pipe

31‧‧‧ the first end

32‧‧‧ the second end

33‧‧‧Heat conduction department

5‧‧‧ heat source

6‧‧‧cooling module

Figure 1 is a perspective view of a conventional heat dissipation unit; Figure 2A is a perspective view of a first embodiment of a heat dissipation unit of the present invention; Figure 2B is a perspective combination view of a first embodiment of a heat dissipation unit of the present invention; The figure is a perspective view of the second embodiment of the heat sink unit of the present invention; the fourth figure is a perspective view of the third embodiment of the heat sink unit of the present invention; the fifth figure is an exploded sectional view of the fourth embodiment of the heat sink unit of the present invention Figure 6 is a perspective exploded view of the fifth embodiment of the heat sink unit of the present invention; Figure 7A is a perspective exploded view of the first embodiment of the heat sink module of the present invention; Figure 7B is a heat sink module of the present invention A perspective view of the first embodiment.

Claims (11)

A heat dissipation unit includes: a base having a first side and a second side; and a first heat dissipation fin group composed of a plurality of first heat dissipation fins. A first end edge and a second end edge are respectively formed at the ends and are respectively disposed on the first side, and each first heat dissipation fin is arranged in a gradually increasing and gradually expanding arrangement, and the first heat dissipation fins are provided with at least one The first supporting portion is formed with a first opening corresponding to the first supporting portion, and the first supporting portion abuts against another first heat dissipation fin. The heat dissipation unit according to claim 1, wherein the first side further defines at least one first groove, and the first and second end edges are embedded in the first groove. The heat dissipation unit according to claim 1, wherein the first and second end edges respectively extend a first joint portion and a second joint portion, and the first and second joint portions are attached to the first joint portion. On the side. The heat dissipation unit according to claim 3, wherein the first and second joints are fixed on the first side by a welding method or an adhesive method. The heat dissipating unit according to claim 1, wherein the first heat dissipating fin further has a first surface and a second surface, and the first support portion is formed from the second surface toward the first surface. . The heat dissipating unit according to claim 1, wherein the first heat dissipating fins are rectangular or semi-circular or triangular or polygonal or other geometric shapes. According to the heat dissipating unit described in claim 1, there is a second heat dissipating fin group composed of a plurality of second heat dissipating fins, and two ends of the second heat dissipating fins form a third end edge and a fourth At the edge, each second heat radiating fin is arranged on the base in a gradually increasing arrangement. The second heat radiating fin is provided with at least a second supporting portion and forms a second corresponding to the second supporting portion. The second support portion is opened to correspond to another second heat dissipation fin. The heat dissipation unit according to claim 1, further comprising at least one fan disposed on one side of the heat dissipation unit. A heat dissipation module includes: a heat dissipation unit including: a base having a first side and a second side; a first heat dissipation fin group composed of a plurality of first heat dissipation fins, and the like A first end edge and a second end edge are respectively formed at two ends of the first heat radiation fin and are respectively disposed on the first side, and each first heat radiation fin is arranged in a gradually expanding arrangement. The first support portion is provided with at least one first support portion and a first opening is formed at the first support portion, and the first support portion is correspondingly abutted to another first heat dissipation fin; a second heat dissipation fin group is formed by It is composed of a plurality of second heat dissipation fins. The two ends of the second heat dissipation fins respectively form a third end edge and a fourth end edge and are correspondingly arranged on the second side. The second heat dissipation fins are arranged gradually, and the second heat dissipation fins are provided with at least a second support portion and a second opening is formed at the second support portion, and the second support portion is abutted against another second heat dissipation fin. ; And a heat pipe having a first end, a second end, and a heat conducting portion, the first and second ends Corresponding to the heat dissipating unit penetrates. The heat dissipation module according to claim 9, wherein at least one first groove and at least one second groove are respectively provided on the first and second sides, and the first and second end edges are embedded in the first and second sides. In a groove, the third and fourth end edges are embedded in the second groove. The heat dissipation module according to claim 9, wherein the first and second end edges respectively extend a first joint portion and a second joint portion, and the third and fourth end edges further extend a third joint portion, respectively. And a fourth joint portion, the first and second joint portions are attached on the first side, and the third and fourth joint portions are attached on the second side.