A composite circuit board

Abstract

This utility model relates to the field of electronic product technology and discloses a composite circuit board, including a circuit board body, a silicone grease layer, a copper plate, and a fan body. It also includes a housing bolted to the top of the circuit board body, with the fan body bolted to the inside of the housing. A transverse cylinder is provided through one side of the housing surface, and a rotating column is rotatably connected inside the transverse cylinder. Helical blades are fixed to the surface of the rotating column. A transmission assembly is also provided inside the housing. This utility model utilizes the power of the fan blades' rotation, driven by the fan's operation and the transmission assembly, to propel the rotating column and helical blades, causing the cooling medium to flow within the first connecting pipe, the transverse cylinder, the second connecting pipe, and the channel. Combined with the use of the silicone grease layer and the copper plate, the fan can effectively dissipate heat generated by the entire circuit board, resulting in a wider cooling area and effectively preventing the temperature of other electronic components from rising.

Description

Technical Field

[0001] This utility model relates to the field of electronic product technology, specifically to a composite circuit board. Background Technology

[0002] The core purpose of placing a fan above the main chip on the circuit board is to solve the heat dissipation problem. The chip generates a lot of heat when it is running. If it cannot be dissipated in time, it will cause the temperature to be too high, leading to performance degradation, crashes, or even hardware damage. The fan creates convection by forcing airflow: accelerating the diffusion of hot air on the chip surface, while introducing external cool air to form a continuous heat dissipation cycle.

[0003] However, the fan can only blow air onto the chip and cannot blow air onto other electronic components on the circuit board. This can easily cause other parts of the circuit board to rise and affect the normal operation of the circuit board. Utility Model Content

[0004] The purpose of this invention is to provide a composite circuit board to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a composite circuit board, comprising a circuit board body, a silicone grease layer, a copper plate, and a fan body, and further comprising:

[0006] A box body is bolted to the top of the circuit board body, the fan body is bolted to the inside of the box body, a horizontal cylinder is provided through one side of the surface of the box body, a rotating column is rotatably connected inside the horizontal cylinder, a spiral blade is fixed on the surface of the rotating column, and a transmission component is also provided inside the box body.

[0007] A channel is formed inside the copper plate, and a first connecting pipe and a second connecting pipe are respectively connected to both ends of the channel. The other ends of the first connecting pipe and the second connecting pipe are respectively connected to both sides of the surface of the transverse cylinder. Several heat-conducting plates are welded to the surface of the second connecting pipe, and the surface of the heat-conducting plates is provided with round holes.

[0008] Preferably, the transmission assembly includes a rotating column, a first gear, and a second gear. The rotating column is fixed to the rotating shaft of the fan blades in the fan body. Both the first gear and the second gear are bevel gears. The first gear meshes with the second gear. The first gear is bolted to the surface of the rotating column. One end of the rotating column extends to the outside of the transverse cylinder and is bolted to the second gear.

[0009] Preferably, the box body, horizontal cylinder, rotating column, rotating column, first gear, second gear, and spiral blade are all made of plastic.

[0010] Preferably, screws are provided between the circuit board body and the copper plate.

[0011] Preferably, both the first connecting pipe and the second connecting pipe are copper pipes.

[0012] Preferably, the channel has a meandering design.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This invention utilizes the power of the fan's rotation, driven by the transmission components, to rotate the rotating column and spiral blades, allowing the cooling medium to flow within the first connecting pipe, the horizontal cylinder, the second connecting pipe, and the channel. Combined with the use of a silicone grease layer and a copper plate, the fan can dissipate heat generated by the entire circuit board, resulting in a wider cooling area and effectively preventing the temperature of other electronic components from rising. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a cross-sectional view of the copper plate and the box body in this utility model;

[0017] Figure 3 This is a cross-sectional view of the transverse cylinder in this utility model;

[0018] Figure 4 This is a partial structural schematic diagram of the second connecting pipe in this utility model;

[0019] Figure 5 This is a schematic diagram showing the circuit board body, silicone grease layer, and copper plate after they have been separated from each other in this utility model.

[0020] In the diagram: 1. Circuit board body; 2. Thermal grease layer; 3. Copper plate; 4. Box body; 5. Fan body; 6. Horizontal cylinder; 7. Rotating column; 8. Spiral blade; 9. First connecting pipe; 10. Second connecting pipe; 11. Transmission assembly; 111. Rotating column; 112. First gear; 113. Second gear; 12. Channel; 13. Heat-conducting plate; 14. Round hole; 15. Screw. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-5As shown, a composite circuit board includes a circuit board body 1, a silicone grease layer 2, a copper plate 3, and a fan body 5. The silicone grease layer 2 is disposed between the circuit board body 1 and the copper plate 3. Screws 15 are disposed between the circuit board body 1 and the copper plate 3. Holes for the screws 15 to pass through are provided at the four corners of the circuit board body 1 and the four corners of the silicone grease layer. Threaded holes are formed on the surface of the copper plate 3, and the screws 15 pass through the holes and enter the threaded holes, thus fixing the circuit board body 1, the silicone grease layer 2, and the copper plate 3 to each other. The circuit board also includes:

[0023] A box 4 is bolted to the top of the circuit board body 1, and a fan body 5 is bolted to the inside of the box 4. The box 4 is located above the main chip on the surface of the circuit board body 1. When the fan body 5 is turned on, it can blow air to the chip for heat dissipation. A horizontal cylinder 6 is provided through one side of the surface of the box 4. A rotating column 7 is rotatably connected inside the horizontal cylinder 6. A spiral blade 8, similar to an auger blade, is fixed on the surface of the rotating column 7. A transmission component 11 is also provided inside the box 4.

[0024] The channel 12 is located inside the copper plate 3. The channel 12 has a meandering design. The two ends of the channel 12 are respectively connected to the first connecting pipe 9 and the second connecting pipe 10. The other ends of the first connecting pipe 9 and the second connecting pipe 10 are respectively connected to the two sides of the surface of the transverse cylinder 6. The first connecting pipe 9 and the second connecting pipe 10 are both copper pipes used for heat conduction. Several heat-conducting plates 13 are also welded to the surface of the second connecting pipe 10. The surface of the heat-conducting plates 13 has round holes 14 to increase the extension area of ​​the second connecting pipe 10 and effectively realize heat exchange.

[0025] The transmission assembly 11 includes a rotating column 111, a first gear 112, and a second gear 113. The rotating column 111 is fixed to the rotating shaft of the fan blade in the fan body 5. The first gear 112 and the second gear 113 are both bevel gears. The first gear 112 and the second gear 113 mesh with each other. The first gear 112 is bolted to the surface of the rotating column 111. One end of the rotating column 7 extends to the outside of the transverse cylinder 6 and is bolted to the second gear 113. The housing 4, the transverse cylinder 6, the rotating column 7, the rotating column 111, the first gear 112, the second gear 113, and the spiral blade 8 are all made of plastic, which reduces the weight of the entire circuit board.

[0026] During the manufacturing process of the circuit board, heat transfer oil is pre-filled into the interior of the horizontal cylinder 6, the first connecting pipe 9, the second connecting pipe 10, and the channel 12 as a flowing cooling medium.

[0027] During use, the heat generated by other electronic components of the circuit board body 1 is transferred to the copper plate 3 through the circuit board body 1 and the silicone grease layer 2. The fan body 5 is turned on to blow air onto the chip. At the same time, the fan blades of the fan body 5 drive the rotating column 111 to rotate. The rotating column 111 drives the first gear 112 and the second gear 113 to rotate. The rotating column 111 rotates, which in turn causes the spiral blades 8 to rotate, pushing the internal heat transfer oil to flow. As the oil passes through the second connecting pipe 10 located inside the box 4, the heat is transferred to the heat-conducting plate 13. The air generated by the fan body 5 blows towards the second connecting pipe 10 and the heat-conducting plate 13. The cooled medium returns to the interior of the channel 12 to cool the copper plate 3, thereby cooling the heat generated by other electronic components of the entire circuit board body 1, resulting in a wider cooling range.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A composite circuit board, comprising a circuit board body (1), a silicone grease layer (2), a copper plate (3), and a fan body (5), characterized in that, Also includes: A box (4) is bolted to the top of the circuit board body (1), and the fan body (5) is bolted to the inside of the box (4). A horizontal cylinder (6) is provided through one side of the surface of the box (4). A rotating column (7) is rotatably connected inside the horizontal cylinder (6). A spiral blade (8) is fixed on the surface of the rotating column (7). A transmission assembly (11) is also provided inside the box (4). A channel (12) is formed inside the copper plate (3). A first connecting pipe (9) and a second connecting pipe (10) are respectively connected to both ends of the channel (12). The other ends of the first connecting pipe (9) and the second connecting pipe (10) are respectively connected to both sides of the surface of the transverse cylinder (6). Several heat-conducting plates (13) are also welded to the surface of the second connecting pipe (10). The surface of the heat-conducting plates (13) is provided with round holes (14).

2. A composite structure circuit board according to claim 1, wherein: The transmission assembly (11) includes a rotating column (111), a first gear (112), and a second gear (113). The rotating column (111) is fixed to the rotating shaft of the fan blade in the fan body (5). The first gear (112) and the second gear (113) are both bevel gears. The first gear (112) and the second gear (113) mesh with each other. The first gear (112) is bolted to the surface of the rotating column (111). One end of the rotating column (7) extends to the outside of the transverse cylinder (6) and is bolted to the second gear (113).

3. A composite structure circuit board according to claim 2, wherein: The box body (4), horizontal cylinder (6), rotating column (7), rotating column (111), first gear (112), second gear (113) and spiral blade (8) are all made of plastic.

4. The circuit board of claim 1, wherein: A screw (15) is provided between the circuit board body (1) and the copper plate (3).

5. The circuit board of claim 1, wherein: Both the first connecting pipe (9) and the second connecting pipe (10) are copper pipes.

6. The circuit board of claim 1, wherein: The channel (12) has a meandering design.

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