Heat dissipation base of power amplifier

Abstract

The utility model belongs to the technical field of electronic engineering, in particular to a heat dissipation base of a power amplifier, which comprises the power amplifier and a support base, the top end of the support base is provided with a circular groove, two communicating grooves and two clamping grooves, the two clamping grooves are communicated with the internal space of the circular groove through the corresponding communicating grooves, and the two clamping grooves are communicated with the internal space of the circular groove through the corresponding communicating grooves. A motor is mounted in the circular groove, a driving rod is fixedly connected to the output end of the motor, and a plurality of fan blades are fixedly connected to the side wall of the driving rod; external dust and garbage are intercepted and filtered through the dustproof cover, the situation that impurities and dust in external air are driven by airflow to enter the power amplifier is reduced, and therefore the influence on normal operation of a circuit due to the fact that the dust and the impurities are accumulated in the power amplifier is reduced; the dust cover is intermittently pushed by the six-edge rod to protrude towards the outer portion of the supporting base, so that remaining dust and impurities can be discharged to the outside, cleaning work of the dust cover is achieved, and the situation that the dust cover is blocked is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of electronic engineering, and in particular relates to a heat dissipation base of a power amplifier. Background Art

[0002] The heat sink of the power amplifier is an important component for heat dissipation. Its main function is to effectively conduct and dissipate the heat generated by the power amplifier to the external environment through thermal conduction, so as to keep the operating temperature of the power amplifier within a safe range and avoid overheating to damage components or affect performance.

[0003] The heat dissipation base dissipates the heat in the power amplifier to the surrounding air through heat dissipation fins or heat dissipation fans. The heat dissipation fan achieves heat dissipation and cooling by blowing air to the heat conductor at the bottom of the power amplifier. However, in actual use, the heat dissipation fan will extract and drain the external air, so that impurities and dust in the external air will be driven into the power amplifier by the airflow, causing dust and debris to accumulate inside the power amplifier, which may affect the normal operation of the circuit and even cause a short circuit or other faults. Dust and garbage may cover the heat conductor, weakening its thermal conductivity, resulting in poor heat dissipation. Utility Model Content

[0004] The utility model provides a heat dissipation base for a power amplifier, which has the characteristics of reducing the influence of dust and impurities on the use safety and heat dissipation effect of the power amplifier.

[0005] The utility model provides the following technical solution: it includes a power amplifier and a support base, the top of the support base is provided with two circular connecting grooves and two engaging grooves, the two engaging grooves are connected with the internal space of the circular groove through the corresponding connecting grooves, a motor is installed in the circular groove, a driving rod is fixedly connected to the output end of the motor, a plurality of fan blades are fixedly connected to the side wall of the driving rod, a support frame is engaged with the inner wall of the engaging groove, a dust cover is fixedly connected to the inner wall of the support frame, hexagonal rods are arranged in the two connecting grooves, and the hexagonal rods push the corresponding dust cover back and forth.

[0006] Among them, a plurality of grille bars are fixedly connected to the inner wall of the circular groove, and the plurality of grille bars are flush with the top end of the support base, and the driving rod and the fan blades are not in contact with the grille bars.

[0007] Wherein, a handle is hinged on one side of the support frame, and a torsion spring is arranged between the handle and the corresponding support frame.

[0008] Among them, the inner walls of the two hexagonal rods are both threadedly connected with a bidirectional screw rod, the inner wall of the connecting groove is fixedly connected with a support frame supporting the hexagonal rods, and the hexagonal rods are slidably connected to the corresponding inner wall of the support frame.

[0009] Wherein, a driving gear is fixedly connected to the side wall of the driving rod, one end of each of the two bidirectional screw rods is fixedly connected to a driven gear, and the two driven gears are meshedly connected to the side wall of the fan blade.

[0010] Among them, two support rods supporting the bidirectional screw are fixedly connected to the inner wall of the circular groove, and a limiting ring is fixedly connected to the side wall of the bidirectional screw. The hexagonal rod and the limiting ring are both rotatably connected to the inner wall of the support rod, and one end of the two hexagonal rods is fixedly connected to a sphere, which is in contact with the corresponding side wall of the dust cover.

[0011] The beneficial effects of the utility model are as follows: the dust cover is used to intercept and filter external dust and garbage, thereby reducing the situation where impurities and dust in the external air are driven by the airflow to enter the power amplifier, thereby reducing the impact of dust and debris accumulation inside the power amplifier on the normal operation of the circuit; the dust cover is intermittently pushed toward the external protrusion of the supporting base by the hexagonal rod, so that the retained dust and impurities can be discharged to the outside, and the dust cover is cleaned, which helps to maintain the interception ability of the dust cover, reduces the clogging of the dust cover, reduces manual cleaning of the dust cover, and reduces physical exertion.

[0012] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0014] Figure 2 It is a schematic diagram of the three-dimensional structure of the support base in the utility model;

[0015] Figure 3 It is a schematic diagram of a top view cross-sectional structure of components such as a support base in the utility model;

[0016] Figure 4 It is a front view cross-sectional structural diagram of the supporting base and other components in the utility model;

[0017] Figure 5 for Figure 4 Enlarged schematic diagram of part A in the middle.

[0018] In the figure: 1. power amplifier; 2. support base; 21. circular groove; 211. grille bar; 22. connecting groove; 23. locking groove; 24. motor; 25. driving rod; 251. fan blade; 252. driving gear; 3. support frame; 31. dust cover; 32. handle; 321. torsion spring; 4. hexagonal rod; 41. bidirectional screw rod; 411. driven gear; 412. limit ring; 42. support frame; 43. support rod; 44. sphere. DETAILED DESCRIPTION

[0019] See also Figure 1-Figure 5 The utility model provides the following technical solutions: including a power amplifier 1 and a support base 2, a circular groove 21, two connecting grooves 22 and two engaging grooves 23 are provided at the top of the support base 2, the two engaging grooves 23 are connected with the inner space of the circular groove 21 through the corresponding connecting grooves 22, a motor 24 is installed in the circular groove 21, a driving rod 25 is fixedly connected to the output end of the motor 24, a plurality of fan blades 251 are fixedly connected to the side wall of the driving rod 25, a support frame 3 is engaged with the inner wall of the engaging groove 23, a dust cover 31 is fixedly connected to the inner wall of the support frame 3, a hexagonal rod 4 is provided in the two connecting grooves 22, and the hexagonal rod 4 pushes the corresponding dust cover 31 back and forth.

[0020] In this embodiment: the support base 2 supports the components of the device, the power amplifier 1 is installed above the support base 2, and the support base 2 makes way for the fan and other components through the circular groove 21. The circular groove 21 facilitates the airflow to enter the power amplifier 1 for heat dissipation. The engaging groove 23 is connected with the external space, and the engaging groove 23 supplies air to the circular groove 21 through the connecting groove 22. The motor 24 supports and rotates the driving rod 25, and the driving rod 25 supports and rotates a plurality of fan blades 251. When the plurality of fan blades 251 rotate, airflow is generated to blow upward, and the suction force generated by the fan blades 251 is transmitted to the position of the engaging groove 23 through the connecting groove 22. The support frame 3 is installed in the corresponding engaging groove 23, and the support frame 3 supports and limits the dust cover 31. The external airflow surges into the engaging groove 23, and the airflow pushes the dust cover 31. The dust cover 31 is depressed toward the connecting groove 22 under the influence of the airflow, and the dust cover 31 intercepts and filters external dust and garbage. The depression of 1 expands the interception range, reduces the situation where impurities and dust in the external air are driven by the airflow to enter the power amplifier, thereby reducing the impact of dust and debris accumulation inside the power amplifier on the normal operation of the circuit, reducing the coverage of dust and impurities, and improving the thermal conductivity of the heat conductor. One end of the hexagonal rod 4 corresponds to the inner side of the dust cover 31, and the dust and impurities intercepted by the dust cover 31 are retained in the depressed area of ​​the dust cover 31. The hexagonal rod 4 reciprocates inside the support base 2, and the hexagonal rod 4 intermittently contacts and squeezes the dust cover 31, so that the hexagonal rod 4 can push the dust cover 31 to the outside of the support base 2, thereby exposing the original depressed area of ​​the dust cover 31 to the outside, so that the retained dust and impurities can be discharged to the outside. The hexagonal rod 4 pushes the dust cover 31 multiple times to achieve the cleaning of the dust cover 31, which helps to maintain the interception ability of the dust cover 31, reduce the blockage of the dust cover 31, reduce manual cleaning of the dust cover 31, and reduce physical exertion.

[0021] A plurality of grille bars 211 are fixedly connected to the inner wall of the circular groove 21, and the plurality of grille bars 211 are flush with the top of the support base 2, and the driving rod 25 and the fan blades 251 are not in contact with the grille bars 211; the grille bars 211 shield the fan blades 251 to prevent external objects from contacting the fan blades 251 and affecting their normal rotation operation, and to avoid damage to the fan blades 251, and the driving rod 25 and the fan blades 251 will not be interfered with or limited by the grille bars 211.

[0022] A handle 32 is hinged on one side of the support frame 3, and a torsion spring 321 is arranged between the handle 32 and the corresponding support frame 3; the torsion spring 321 drives the handle 32 to rotate with the support frame 3 as the support base point, so that the handle 32 can be flipped upward and fit into one side of the support frame 3, thereby reducing the space occupied by the handle 32. When installing and disassembling the dust cover 31, the handle 32 can be pulled and flipped to facilitate personnel to hold it, thereby facilitating the removal and placement of the support frame 3.

[0023] The inner walls of the two hexagonal rods 4 are both threadedly connected with a bidirectional screw rod 41, and the inner wall of the connecting groove 22 is fixedly connected with a support frame 42 for supporting the hexagonal rod 4, and the hexagonal rod 4 is slidably connected to the corresponding inner wall of the support frame 42; the position of the bidirectional screw rod 41 is fixed, and the bidirectional screw rod 41 can only rotate but cannot move. When the bidirectional screw rod 41 rotates, it drives the hexagonal rod 4. The side wall of the hexagonal rod 4 is a hexagonal design, and the support frame 42 supports and limits the hexagonal rod 4, so that the hexagonal rod 4 maintains a stable sliding path when sliding, and prevents the hexagonal rod 4 from rotating, so that the bidirectional screw rod 41 drives the hexagonal rod 4 more stably.

[0024] A driving gear 252 is fixedly connected to the side wall of the driving rod 25, and one end of the two bidirectional screw rods 41 are fixedly connected to the driven gear 411, and the two driven gears 411 are meshed and connected to the side wall of the fan blade 251; when the driving rod 25 rotates, it drives the driving gear 252 to rotate synchronously, and the driving gear 252 drives the two driven gears 411 to rotate, so that the driven gear 411 can drive the bidirectional screw rod 41 to rotate, and the bidirectional screw rod 41 can reciprocate and drive the hexagonal rod 4.

[0025] Two support rods 43 supporting the bidirectional screw rod 41 are fixedly connected to the inner wall of the circular groove 21, and a limiting ring 412 is fixedly connected to the side wall of the bidirectional screw rod 41. The hexagonal rod 4 and the limiting ring 412 are both rotatably connected to the inner wall of the support rod 43. One end of the two hexagonal rods 4 is fixedly connected to a sphere 44, and the sphere 44 contacts the corresponding side wall of the dust cover 31; the support rod 43 supports the bidirectional screw rod 41, and the support rod 43 limits the bidirectional screw rod 41 through the support frame 42, so that the hexagonal rod 4 can only rotate but cannot move, and the hexagonal rod 4 contacts the dust cover 31 through the sphere 44, thereby reducing the damage of the hexagonal rod 4 to the dust cover 31.

[0026] The working principle and use process of the utility model are as follows: when the device is used, the control motor 24 drives the driving rod 25 to rotate, and the driving rod 25 drives the fan blade 251 and the driving gear 252 to rotate synchronously. When the fan blade 251 rotates, an airflow is generated to blow upward, and the airflow enters the inside of the power amplifier 1 for heat dissipation. The suction force generated by the fan blade 251 is transmitted to the position of the engaging groove 23 through the connecting groove 22, and the external airflow surges into the engaging groove 23. The airflow pushes the dust cover 31, and the dust cover 31 is depressed toward the connecting groove 22 under the influence of the airflow. The dust cover 31 intercepts and filters external dust and garbage. The depression of the dust cover 31 expands the interception range, which reduces the impurities and dust in the external air driven by the airflow to enter the power amplifier 1. The situation inside the power amplifier is reduced, thereby reducing the impact of dust and debris accumulation inside the power amplifier on the normal operation of the circuit, reducing the coverage of dust and impurities, and improving the thermal conductivity of the heat conductor. At the same time, the active gear 252 drives the two driven gears 411 to rotate, so that the driven gear 411 can drive the bidirectional screw rod 41 to rotate. When the bidirectional screw rod 41 rotates, it drives the hexagonal rod 4, and the hexagonal rod 4 slides back and forth on the inner wall of the support frame 42. The hexagonal rod 4 intermittently contacts and squeezes the dust cover 31, so that the sphere 44 can push the dust cover 31 to be recessed to the outside of the support base 2, and then the original recessed area of ​​the dust cover 31 is exposed to the outside, so that the retained dust and impurities can be discharged to the outside.

Claims

1. A heat dissipation base for a power amplifier, comprising a power amplifier (1) and a supporting base (2), characterized in that: The top of the support base (2) is provided with a circular groove (21), two connecting grooves (22) and two engaging grooves (23); the two engaging grooves (23) are connected with the inner space of the circular groove (21) through the corresponding connecting grooves (22); a motor (24) is installed in the circular groove (21); a driving rod (25) is fixedly connected to the output end of the motor (24); a plurality of fan blades (251) are fixedly connected to the side wall of the driving rod (25); the inner wall of the engaging groove (23) is engaged with the supporting frame (3); the inner wall of the supporting frame (3) is fixedly connected with the dust cover (31); a hexagonal rod (4) is arranged in the two connecting grooves (22); the hexagonal rod (4) pushes the corresponding dust cover (31) back and forth.

2. The heat dissipation base of a power amplifier according to claim 1, characterized in that: A plurality of grille bars (211) are fixedly connected to the inner wall of the circular groove (21), the plurality of grille bars (211) are flush with the top of the support base (2), and the driving rod (25) and the fan blades (251) are not in contact with the grille bars (211).

3. The heat dissipation base of a power amplifier according to claim 1, characterized in that: A handle (32) is hingedly connected to one side of the support frame (3), and a torsion spring (321) is provided between the handle (32) and the corresponding support frame (3).

4. The heat dissipation base of a power amplifier according to claim 1, characterized in that: The inner walls of the two hexagonal rods (4) are both threadedly connected with bidirectional screw rods (41); the inner wall of the connecting groove (22) is fixedly connected with a support frame (42) for supporting the hexagonal rods (4); and the hexagonal rods (4) are slidably connected to the corresponding inner walls of the support frame (42).

5. The heat dissipation base of a power amplifier according to claim 4, characterized in that: A driving gear (252) is fixedly connected to the side wall of the driving rod (25), one end of each of the two bidirectional screw rods (41) is fixedly connected to a driven gear (411), and the two driven gears (411) are meshingly connected to the side wall of the fan blade (251).

6. The heat dissipation base of a power amplifier according to claim 5, characterized in that: The inner wall of the circular groove (21) is fixedly connected to two support rods (43) supporting the bidirectional screw rod (41); the side wall of the bidirectional screw rod (41) is fixedly connected to a limit ring (412); the hexagonal rod (4) and the limit ring (412) are both rotatably connected to the inner wall of the support rod (43); one end of the two hexagonal rods (4) is fixedly connected to a sphere (44); the sphere (44) contacts the corresponding side wall of the dust cover (31).

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