Power amplifier power panel capable of preventing overheating

Abstract

The utility model discloses a power amplifier power panel for preventing overheating, which relates to the technical field of power amplifier power panels and comprises a power panel body, a chip body is mounted on one side of the top of the power panel body, acting force is transmitted to a first transmission rod through swinging of a second movable plate and a linkage rod, so that the first movable plate moves synchronously, and the chip body is mounted on the chip body. The two movable plates are gradually close to each other under the synergistic effect of the connecting frame, and finally complete folding is achieved, so that the ventilation opening is opened, normal operation of the cooling fan is ensured, during cooling, the dustproof plate effectively blocks dust, air outlets are prevented from being blocked by dust accumulation during shutdown of the fan, the cooling effect is prevented from being damaged, and stable temperature of the chip body is ensured. And an overheating phenomenon caused by poor heat dissipation is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of power amplifier power supply boards, in particular to a power amplifier power supply board capable of preventing overheating. Background Art

[0002] The power amplifier power board is a key component in the power amplifier (PA). It is mainly responsible for providing appropriate power for the PA circuit. In order to prevent the power amplifier power board from overheating, a cooling fan is usually installed to dissipate heat.

[0003] However, in the prior art, when the fan stops running, it is in a stationary state, just like a stationary object placed in a dusty environment. The dust will gradually fall on the surface of the fan under the action of gravity and air flow (such as the weak airflow generated by natural ventilation). Moreover, since the stopped fan has no airflow to disperse the dust that may fall on its surface, when it is running, the airflow generated by the fan itself can prevent the dust from adhering for a long time to a certain extent. Utility Model Content

[0004] The purpose of the utility model is to solve the problem in the prior art that dust gradually falls on the fan surface under the action of gravity and air flow, and to propose an amplifier power supply board that prevents overheating.

[0005] In order to achieve the above-mentioned object, the utility model adopts the following technical solution: an amplifier power board for preventing overheating, comprising a power board body, a chip body mounted on one side of the top of the power board body, four frames symmetrically fixedly connected to the top of the chip body, two cooling fans mounted inside the four frames, and a dustproof mechanism mounted on the top of the four frames;

[0006] The dust-proof mechanism includes a base plate, a ventilation opening is provided at one end of the base plate, fixed plates are fixedly connected on both sides of the ventilation opening, and a first movable plate and a second movable plate are provided on one side of the ventilation opening, the first movable plate and the second movable plate are fixedly connected to a connecting frame at their opposite ends, the two connecting frames are rotatably connected, the top of the fixed plate is fixedly connected to a fixed rod in turn, a linkage rod is provided on one side of the second movable plate, and connecting sleeves are fixedly connected at both ends of the linkage rod, one of the connecting sleeves is rotatably connected to the fixed rod, and the second transmission rod is fixedly connected to the inner side of one end of the other connecting sleeve.

[0007] Preferably, a motor is installed on one side of one of the fixed plates, and the output end of the motor is fixedly connected to one of the second movable plates.

[0008] Preferably, a second connecting rod is fixedly connected between the two second movable plates, the second movable plates are rotatably connected to the fixed plate, and a first connecting rod is fixedly connected between the two first movable plates.

[0009] Preferably, one end of the first movable plate is fixedly connected to the first transmission rod, and one end of the second transmission rod is rotatably connected to one end of the first transmission rod.

[0010] Preferably, a support plate is fixedly connected to the center of one side of the first movable plate and the center of one side of the second movable plate.

[0011] Preferably, two dustproof plates are provided on the top of the vent, and both sides of the dustproof plates are connected to the support plate by bolts.

[0012] Preferably, two limiting blocks are fixedly connected to one side of the top of the bottom plate, and the limiting blocks overlap with the second movable plate.

[0013] Compared with the prior art, the advantages and positive effects of the present invention are:

[0014] 1. In the present invention, through the swing of the second movable plate, the linkage rod transmits the force to the first transmission rod, so that the first movable plate moves synchronously. The two movable plates gradually approach each other under the coordinated action of the connecting frame and finally achieve complete folding, thereby opening the vents to ensure the normal operation of the cooling fan. During heat dissipation, the dustproof plate effectively blocks dust, preventing the fan from clogging the air outlet due to dust accumulation when the fan is stopped, thereby preventing the heat dissipation effect from being damaged, ensuring the temperature of the chip body is stable, and avoiding overheating caused by poor heat dissipation.

[0015] 2. In the utility model, the design realizes the dual functions of dust prevention and convenient disassembly by installing a dustproof plate between the first movable plate and the second movable plate, and supporting it by the support plate. During operation, the motor drives one of the second movable plates to move, and the second connecting rod and the first connecting rod are linked to realize the synchronous movement of the first and second movable plates. When the second movable plate rests on the limit block, the two movable plates are folded and the vents are fully opened to ensure the best heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model provides a schematic diagram of the overall three-dimensional structure of a power amplifier power supply board that prevents overheating;

[0017] Figure 2 This is a partial three-dimensional structural diagram of a power amplifier power board for preventing overheating proposed by the utility model;

[0018] Figure 3 The utility model provides a schematic diagram of the three-dimensional structure of a dust-proof mechanism for an amplifier power board to prevent overheating;

[0019] Figure 4 The utility model provides a partial three-dimensional structural diagram of a dust-proof mechanism for a power amplifier power board that prevents overheating.

[0020] Legend: 1. Power board body; 2. Chip body; 3. Frame; 4. Dustproof mechanism; 41. Bottom plate; 411. Limit block; 42. Ventilation port; 421. Dustproof plate; 43. First movable plate; 431. First connecting rod; 432. First transmission rod; 44. Second movable plate; 441. Second connecting rod; 45. Support plate; 46. Connecting frame; 47. Fixed plate; 471. Fixed rod; 48. Linkage rod; 481. Second transmission rod; 482. Connecting sleeve; 49. Motor; 5. Cooling fan. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0023] Example 1: Figure 1-4 As shown, the utility model provides an amplifier power board for preventing overheating, comprising a power board body 1, a chip body 2 being mounted on one side of the top of the power board body 1, four frames 3 being symmetrically fixedly connected to the top of the chip body 2, two cooling fans 5 being mounted inside the four frames 3, and a dustproof mechanism 4 being mounted on the top of the four frames 3;

[0024] The dust-proof mechanism 4 includes a base plate 41, a vent 42 is provided at one end of the base plate 41, fixed plates 47 are fixedly connected on both sides of the vent 42, and a first movable plate 43 and a second movable plate 44 are provided on one side of the vent 42, the first movable plate 43 and the second movable plate 44 are fixedly connected to the opposite ends of the plate 43 and the plate 44, the two connecting frames 46 are rotatably connected, the top of the fixed plate 47 is fixedly connected to a fixed rod 471 in turn, a linkage rod 48 is provided on one side of the second movable plate 44, and both ends of the linkage rod 48 are fixedly connected to a connecting sleeve 482, one of the connecting sleeves 482 is rotatably connected to the fixed rod 471, and the inner side of one end of the other connecting sleeve 482 is fixedly connected to the second transmission rod 481.

[0025] The following describes in detail the specific configuration and function of this embodiment. When the cooling fan 5 is in operation, the second movable plate 44 begins to swing. During this swing, because the length of the linkage rod 48 does not change and one end of the linkage rod 48 is rotatably connected to the fixed rod 471 via the connecting sleeve 482, the linkage rod 48 also rotates around the fixed rod 471 as it rotates. During this process, the linkage rod 48 transmits a force to the first transmission rod 432 via the second transmission rod 481 inside the other connecting sleeve 482, thereby causing the first movable plate 43 to move. As the second movable plate 44 continues to rotate, the second movable plate 44 and the first movable plate 43 rotate relative to each other via the connecting frame 46. Because the two connecting frames 46 are triangular at their facing ends, the first movable plate 43 gradually approaches the second movable plate 44. When the second movable plate 44 and the first movable plate 43 are folded, the two connecting frames 46 touch each other, fully opening the vent 42 and allowing the cooling fan 5 to dissipate heat normally. The dustproof plate 421 is used to block the fan, so that dust can be prevented from gradually falling on the fan surface under the action of gravity and air flow such as the weak airflow generated by natural ventilation during shutdown, and gradually accumulating and adhering to the fan, causing the air outlet of the cooling fan 5 to be blocked, thereby affecting the heat dissipation effect and causing the chip body 2 to overheat.

[0026] Example 2: Figure 1 and Figure 2 As shown, a motor 49 is mounted on one side of one of the fixed plates 47, and the output end of the motor 49 is fixedly connected to one of the second movable plates 44. A second connecting rod 441 is fixedly connected between the two second movable plates 44, and the second movable plate 44 is rotatably connected to the fixed plate 47. A first connecting rod 431 is fixedly connected between the two first movable plates 43. A first transmission rod 432 is fixedly connected to one end of the first movable plate 43, and one end of the second transmission rod 481 is rotatably connected to one end of the first transmission rod 432. A support plate 45 is fixedly connected to the center of one side of the first movable plate 43 and the center of one side of the second movable plate 44. Two dustproof plates 421 are provided on the top of the vent 42, and both sides of the dustproof plates 421 are bolted to the support plates 45. Two limit blocks 411 are fixedly connected to one side of the top of the base plate 41, and the limit blocks 411 overlap the second movable plates 44.

[0027] The effect achieved by the entire embodiment is that the dustproof plate 421 is installed between the two first movable plates 43 or the two second movable plates 44 and supported by the support plate 45. This not only plays a dustproof role, but also facilitates disassembly. In addition, the dustproof plate 421 can be replaced with a dust cover, so that the cooling fan 5 can also operate when it is turned off. Although the heat dissipation effect will be reduced, it does not need to be turned on additionally when the power consumption is low. When the power increases, the dustproof plate 421 can be opened to improve the heat dissipation effect of the cooling fan 5. This solution can improve the dustproof effect in both operating modes, further prevent overheating, and reduce the frequency of regular cleaning.

[0028] During operation, motor 49 drives one of the second movable panels 44. Furthermore, the coordination of second connecting rod 441 and first connecting rod 431, along with the presence of dust shield 421, allows the two second movable panels 44 to move synchronously with the first movable panel 43. When the second movable panel 44 rests on stop block 411, the first and second movable panels 43 and 44 fold completely, fully opening vent 42.

[0029] The method of use and working principle of this device: When the cooling fan 5 is running, the motor 49 drives the second movable plate 44 to move. At the same time, through the cooperation of the second connecting rod 441 and the first connecting rod 431, and the presence of the dustproof plate 421, the two second movable plates 44 and the first movable plate 43 can be synchronized.

[0030] When the second movable panel 44 begins to swing, the linkage rod 48, fixed in length and pivotally connected to the fixed rod 471 at one end via the connecting sleeve 482, causes the linkage rod 48 to rotate about the fixed rod 471. During this process, the linkage rod 48 transmits force to the first transmission rod 432 via the second transmission rod 481 inside the connecting sleeve 482 at its other end, causing the first movable panel 43 to move accordingly. As the second movable panel 44 continues to rotate, the second movable panel 44 and the first movable panel 43 rotate relative to each other via the connecting brackets 46. Due to the triangular structure of the lower ends of the two connecting brackets 46, the first movable panel 43 gradually approaches the second movable panel 44. When the second movable panel 44 and the first movable panel 43 are fully folded, the two connecting brackets 46 touch, and when the second movable panel 44 rests on the stop block 411, the first and second movable panels 43 and 44 are completely folded, fully opening the vents 42 and ensuring proper heat dissipation by the cooling fan 5.

[0031] The dustproof plate 421 is installed between the two first movable plates 43 or the two second movable plates 44 and is supported by the support plate 45, which not only has a dustproof effect but also is easy to disassemble.

[0032] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A power amplifier power board for preventing overheating, comprising a power board body (1), a chip body (2) mounted on one side of the top of the power board body (1), and four frames (3) symmetrically fixedly connected to the top of the chip body (2), characterized in that: Two cooling fans (5) are installed inside the four frames (3), and dustproof mechanisms (4) are installed on the tops of the four frames (3); The dustproof mechanism (4) includes a base plate (41), one end of the base plate (41) is provided with a vent (42), both sides of the vent (42) are fixedly connected with fixed plates (47), and one side of the vent (42) is provided with a first movable plate (43) and a second movable plate (44), the first movable plate (43) and the second movable plate (44) are fixedly connected with a connecting frame (46) at their opposite ends, the two connecting frames (46) are rotatably connected, the top of the fixed plate (47) is fixedly connected with a fixed rod (471) in turn, and a linkage rod (48) is provided on one side of the second movable plate (44), and both ends of the linkage rod (48) are fixedly connected with a connecting sleeve (482), one of the connecting sleeves (482) is rotatably connected to the fixed rod (471), and the inner side of one end of the other connecting sleeve (482) is fixedly connected with a second transmission rod (481).

2. The power amplifier power supply board for preventing overheating according to claim 1, characterized in that: A motor (49) is installed on one side of one of the fixed plates (47), and an output end of the motor (49) is fixedly connected to one of the second movable plates (44).

3. The power amplifier power supply board for preventing overheating according to claim 1, characterized in that: A second connecting rod (441) is fixedly connected between the two second movable plates (44), the second movable plates (44) are rotatably connected to the fixed plate (47), and a first connecting rod (431) is fixedly connected between the two first movable plates (43).

4. The power amplifier power supply board for preventing overheating according to claim 1, characterized in that: One end of the first movable plate (43) is fixedly connected to the first transmission rod (432), and one end of the second transmission rod (481) is rotatably connected to one end of the first transmission rod (432).

5. The power amplifier power supply board for preventing overheating according to claim 1, characterized in that: A support plate (45) is fixedly connected to the center of one side of the first movable plate (43) and the center of one side of the second movable plate (44).

6. The power amplifier power supply board for preventing overheating according to claim 1, characterized in that: Two dustproof plates (421) are provided on the top of the vent (42), and both sides of the dustproof plates (421) are connected to the support plate (45) by bolts.

7. The power amplifier power supply board for preventing overheating according to claim 1, characterized in that: Two limiting blocks (411) are fixedly connected to one side of the top of the bottom plate (41), and the limiting blocks (411) are overlapped with the second movable plate (44).

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