A heat sink for power amplifier module power tube of power amplifier

Abstract

The utility model discloses a kind of heat sink for power amplifier module power tube of power amplifier, it is related to power amplifier power amplifier module heat dissipation technical field.The utility model includes heat sink bottom plate and fastening block, the bottom of one side of heat sink bottom plate is equipped with several groups of connecting slot, and the inside of several groups of connecting slot is connected with connecting plug rod, and the both ends of connecting plug rod are fixed with connecting bolt, the top of fastening block is equipped with several groups of first mounting hole, and the outside of fastening block is attached with fastening plate, the top of fastening plate is equipped with several groups of first fastening hole, and the bottom of fastening plate is equipped with several groups of second fastening hole, the utility model can be installed and used quickly to fin, also can let two groups of fin carry out splicing use, and let splicing place have good stability, to prevent fin misplacement and reduce heat dissipation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of heat dissipation technology for power amplifier modules, specifically a heat sink for power transistors in power amplifier modules. Background Technology

[0002] The power transistors in a power amplifier module generate a lot of heat when they are working. If this heat is not dissipated in time, the power transistors will overheat, affecting their performance, shortening their lifespan, or even causing damage. The power transistor heat sink is designed to solve this problem. It is usually made of a metal with good thermal conductivity and is placed in close contact with the power transistor. It can quickly conduct the heat generated by the power transistor and dissipate it into the surrounding air, ensuring that the power transistors work stably at a suitable temperature.

[0003] However, traditional power amplifier module power tube heat sinks require many sets of mounting plates to install when used in pairs. When two sets of heat sinks are used together, the connection between the two sets of heat sinks is relatively smooth, resulting in incomplete contact surface connection and thus reducing heat dissipation efficiency. Summary of the Invention

[0004] Based on this, the purpose of this utility model is to provide a heat sink for the power tubes of a power amplifier module, which allows for quick installation and use of the heat sink, and also allows two sets of heat sinks to be assembled and used, with good stability at the splicing point, thereby preventing misalignment of the heat sink and reducing heat dissipation efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a heat sink for power tubes of a power amplifier module, comprising a heat sink base plate and a fastening block. A plurality of connecting slots are provided on one side of the bottom of the heat sink base plate, and connecting rods are engaged inside the connecting slots. Connecting bolts are fixed at both ends of the connecting rods and are inserted into the connecting slots. A plurality of first mounting holes are provided on the top of the fastening block, and a fastening plate is attached to the outer side of the fastening block. A plurality of first fastening holes are provided on the top of the fastening plate, and a plurality of second fastening holes are provided on the bottom of the fastening plate. The plurality of first fastening holes and the plurality of second fastening holes are respectively arranged in a one-to-one correspondence with the plurality of first mounting holes.

[0006] By adopting the above technical solution, the several sets of connecting slots opened on the bottom side of one side of the radiator base plate are used to engage with the connecting bolts at both ends of the connecting rod. When it is necessary to connect two sets of radiators, they provide the insertion position for the connecting rod and the connecting bolt, thereby realizing the connection of the two sets of radiator base plates, enhancing the stability of the contact surface of the two sets of radiator base plates, preventing misalignment of the contact surface and reducing the heat dissipation rate. The several sets of first mounting holes opened on the top of the fastening block are set one by one with the several sets of first fastening holes opened on the top of the fastening plate and the several sets of second fastening holes opened on the bottom of the fastening plate. The fastening plate, the fastening block and the power amplifier board can be fixed by fastening bolts, thereby stably installing the fastening block and the radiator base plate that form an integrated structure on the power amplifier, ensuring the fit and stable operation of the radiator and the power tube.

[0007] Furthermore, four sets of first heat sinks are fixed on one side of the top of the radiator base plate, and two sets of second heat sinks are fixed on the side of the top of the radiator base plate close to the first heat sinks.

[0008] By adopting the above technical solution, the four sets of first heat dissipation fins fixed on the top of the radiator base plate away from the fastening block increase the contact area between the radiator and the air. The two sets of second heat dissipation fins fixed on the top of the radiator base plate near the first heat dissipation fins work together with the first heat dissipation fins to further increase the heat dissipation area and enhance the heat dissipation effect.

[0009] Furthermore, a fastening block is fixed to one side of the radiator base plate, and two sets of third heat sinks are fixed to the top of the radiator base plate and the side near the fastening block.

[0010] By adopting the above technical solution, the two sets of third heat sinks fixed on the top of the radiator base plate near the fastening block work together with the first and second heat sinks to further increase the heat dissipation area and enhance the heat exchange efficiency between the radiator and the air, thereby more effectively dissipating the heat generated by the power tube.

[0011] Furthermore, the four sets of first heat sinks, two sets of second heat sinks, and two sets of third heat sinks are arranged at equal intervals on the top of the radiator base plate.

[0012] By adopting the above technical solution, four sets of first heat sinks are equally spaced on the top of the radiator base plate. Their function is to allow heat to be dissipated into the air more evenly through these heat sinks, avoid local heat accumulation, improve the uniformity and efficiency of heat dissipation, and ensure that the heat dissipation effect of each part of the power tube is consistent. Two sets of second heat sinks and two sets of third heat sinks are also equally spaced on the top of the radiator base plate. They cooperate with the first heat sinks to further optimize the layout of the heat sinks on the radiator base plate.

[0013] Furthermore, the cross-section of the fastening plate is a "Z" shaped structure.

[0014] By adopting the above technical solution, the cross-section of the fastening plate is designed as a "Z" shape. This shape allows the fastening plate to provide a larger contact area when connecting the fastening block and the power amplifier board, thereby enhancing the stability of the connection and reducing the risk of loosening caused by vibration or external force.

[0015] Furthermore, the bottom of the radiator base plate is provided with two sets of second mounting holes, which are located between the two sets of second heat sinks.

[0016] By adopting the above technical solution, the two sets of second mounting holes opened at the bottom of the heat sink base plate mainly serve to provide additional mounting points, so that the heat sink can be installed more securely inside the power amplifier.

[0017] In summary, the present invention has the following main advantages:

[0018] This utility model provides a fastening plate, a first fastening hole, and a second fastening hole. The fastening plate has several sets of first fastening holes and second fastening holes on its top and bottom, which are arranged in a one-to-one correspondence and correspond to several sets of first mounting holes on the fastening block. Thus, the fastening block and the radiator base plate that form an integrated structure with it can be stably installed by the fastening plate.

[0019] This utility model incorporates connecting slots, connecting bolts, and connecting rods. Several sets of connecting slots are provided at the bottom of one end of the connecting surface of the radiator base plate, allowing the connecting bolts and connecting rods to be inserted and engaged. This enables two sets of radiator base plates to be connected via the connecting rods and the connecting bolts on both sides, thereby enhancing the stability of the contact surfaces of the two sets of radiator base plates and preventing misalignment that could reduce heat dissipation. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall front view of the present invention;

[0021] Figure 2 This is a schematic diagram of the overall rear view structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the connector bolt of this utility model in a split state;

[0023] Figure 4 This is a schematic diagram of the structure of this utility model, in which both the connecting bolt and the fastening plate are in a split state.

[0024] In the diagram: 1. Radiator base plate; 2. First heat sink; 3. Second heat sink; 4. Third heat sink; 5. Fastening block; 6. First mounting hole; 7. Fastening plate; 8. First fastening hole; 9. Second fastening hole; 10. Connecting slot; 11. Connecting bolt; 12. Connecting rod; 13. Second mounting hole. Detailed Implementation

[0025] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0026] A heat sink for the power transistors of a power amplifier module, such as Figures 1-4 As shown, the device includes a radiator base plate 1 and a fastening block 5. Several sets of connecting slots 10 are provided on the bottom side of one side of the radiator base plate 1, and connecting rods 12 are snapped into the inside of the several sets of connecting slots 10. Connecting bolts 11 are fixed at both ends of the connecting rods 12 and are inserted into the connecting slots 10. Several sets of first mounting holes 6 are provided on the top of the fastening block 5, and a fastening plate 7 is attached to the outside of the fastening block 5. Several sets of first fastening holes 8 are provided on the top of the fastening plate 7, and several sets of second fastening holes 9 are provided on the bottom of the fastening plate 7. The several sets of first fastening holes 8 and several sets of second fastening holes 9 are respectively arranged in a one-to-one correspondence with the several sets of first mounting holes 6.

[0027] The bottom side of the radiator base plate 1 has several connecting slots 10 for engaging with the connecting bolts 11 at both ends of the connecting rod 12, providing mounting positions for the connecting components to connect the two sets of radiator base plates 1, improving the stability of the contact surface and preventing misalignment from affecting heat dissipation. Several first mounting holes 6 on the top of the fastening block 5 correspond to the first fastening holes 8 and the second fastening holes 9 on the fastening plate 7. With the help of fastening bolts, the fastening plate 7, the fastening block 5 and the power amplifier board can be fixed, stably installing the radiator base plate 1 and ensuring good contact with the power tube and stable operation.

[0028] See Figure 1 , Figure 2 , Figure 3 and Figure 4 Four sets of first heat sinks 2 are fixed on one side of the top of the radiator base plate 1, and two sets of second heat sinks 3 are fixed on the side of the top of the radiator base plate 1 close to the first heat sinks 2.

[0029] Four sets of first heat sinks 2 are installed on the top of the radiator base plate 1, away from the fastening block 5. These sets increase the contact area between the radiator and the air, facilitating heat dissipation. The two sets of second heat sinks 3, located near the first heat sinks 2, work together with the first heat sinks 2 to increase the heat dissipation area, thereby improving the overall heat dissipation efficiency.

[0030] See Figure 1 , Figure 2 , Figure 3 and Figure 4 A fastening block 5 is fixed on one side of the radiator base plate 1, and two sets of third heat sinks 4 are fixed on the top of the radiator base plate 1 and on the side close to the fastening block 5.

[0031] Among them, the two sets of third heat sinks 4 fixed at the top of the radiator base plate 1 near the fastening block 5 will cooperate with the first heat sink 2 and the second heat sink 3 to expand the heat dissipation area, improve the heat exchange capacity between the radiator and the air, and thus dissipate the heat generated by the power tube more efficiently.

[0032] See Figure 1 , Figure 2 , Figure 3 and Figure 4 Four sets of first heat sinks 2, two sets of second heat sinks 3 and two sets of third heat sinks 4 are arranged at equal intervals based on the top of the heat sink base plate 1;

[0033] The four sets of first heat sinks 2 are evenly spaced on the top of the radiator base plate 1, allowing heat to be evenly dissipated from each heat sink into the air, preventing local heat accumulation, improving heat dissipation balance and efficiency, and ensuring that the heat dissipation effect is the same for all parts of the power transistor. The two sets of second heat sinks 3 and the two sets of third heat sinks 4 are also evenly spaced on the top of the radiator base plate 1. They work together with the first heat sinks 2 to optimize the layout of the heat sinks on the radiator base plate 1.

[0034] See Figure 1 and Figure 2 The cross-section of fastening plate 7 is a "Z" shaped structure;

[0035] Among them, the fastening plate 7 adopts a "Z" shaped cross-section design. This structure can increase the contact area when connecting the fastening block 5 and the power amplifier board, thereby improving the connection firmness and effectively reducing the possibility of loosening due to vibration or external force.

[0036] See Figure 3 Figure 4 Figure 2 Figure 4 Figure 4 The bottom of the radiator base plate 1 has two sets of second mounting holes 13, which are located between the two sets of second heat sinks 3.

[0037] The bottom of the heat sink base plate 1 is provided with two sets of second mounting holes 13. The purpose of these mounting holes is to add additional mounting positions so that the heat sink can be more securely fixed inside the power amplifier.

[0038] The implementation principle of this embodiment is as follows: First, the bottom of the heat sink base plate 1 is attached to the power tube using fastening blocks 5, allowing the heat sink base plate 1 to dissipate heat from the power tube through the four sets of first heat sinks 2, two sets of second heat sinks 3, and two sets of third heat sinks 4 on top. Then, the two sets of second mounting holes 13 on the bottom of the heat sink base plate 1 are fastened to the power amplifier board using fastening bolts, allowing the bottom surface of the heat sink base plate 1 to be stably mounted on the power tube. Then, the several sets of first fastening holes 8 on the top of the fastening plate 7 are aligned with the several sets of first mounting holes 6 on the top of the fastening block 5, and fastened with fastening bolts. Next, the fastening plates 7 are secured to the amplifier board by fastening bolts through several sets of second fastening holes 9 at the bottom. This secures the fastening blocks 5 on one side of the radiator base plate 1. Finally, when it is necessary to connect the two radiator base plates 1, the connecting rod 12 on one side of the connecting bolt 11 is inserted into the bottom of the radiator base plate 1 away from the fastening block 5. Then, several sets of connecting slots 10 on one side of the other radiator base plate 1 are inserted and connected to the connecting bolt 11 on the other side of the connecting rod 12. The above operations are performed to fix the fastening blocks 5 and the radiator base plate 1, so that the two radiator base plates 1 can be assembled and connected.

[0039] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A heat sink for power transistors in a power amplifier module, characterized in that: Includes a radiator base plate (1) and a fastening block (5); The bottom of one side of the radiator base plate (1) is provided with several sets of connecting slots (10), and the connecting slots (10) are fitted with connecting rods (12). Both ends of the connecting rods (12) are fixed with connecting bolts (11) and are inserted into the connecting slots (10). The top of the fastening block (5) is provided with several sets of first mounting holes (6), and the outside of the fastening block (5) is attached with a fastening plate (7). The top of the fastening plate (7) is provided with several sets of first fastening holes (8), and the bottom of the fastening plate (7) is provided with several sets of second fastening holes (9). The several sets of first fastening holes (8) and several sets of second fastening holes (9) are respectively set in a one-to-one correspondence with the several sets of first mounting holes (6).

2. The heat sink for the power transistors of the power amplifier module according to claim 1, characterized in that: Four sets of first heat sinks (2) are fixed on one side of the top of the radiator base plate (1), and two sets of second heat sinks (3) are fixed on the side of the top of the radiator base plate (1) close to the first heat sinks (2).

3. The heat sink for the power transistors of the power amplifier module according to claim 1, characterized in that: A fastening block (5) is fixed on one side of the radiator base plate (1), and two sets of third heat sinks (4) are fixed on the top of the radiator base plate (1) and on the side close to the fastening block (5).

4. The heat sink for the power transistors of the power amplifier module according to claim 2, characterized in that: Four sets of first heat sinks (2), two sets of second heat sinks (3) and two sets of third heat sinks (4) are arranged at equal intervals on the top of the radiator base plate (1).

5. The heat sink for the power transistors of the power amplifier module according to claim 1, characterized in that: The fastening plate (7) has a "Z" shaped cross section.

6. The heat sink for the power transistors of the power amplifier module according to claim 1, characterized in that: The bottom of the radiator base plate (1) is provided with two sets of second mounting holes (13), which are located between the two sets of second heat sinks (3).

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