Circuit board with wind shield and power amplifier

Abstract

The utility model relates to the technical field of power amplifiers, in particular to a circuit board with a wind shield and a power amplifier. The circuit board with the wind shield comprises a power board which is used for supplying power to the circuit board with the wind shield; the output board is electrically connected with the power board; the radiator is used for radiating the power supply board and the output board; the fan is used for discharging air to the radiator so as to cool the radiator; and the wind shield is used for guiding outlet air of the fan to the radiator. According to the scheme, the circuit board with the wind shield comprises the radiator, the fan and the wind shield in the layout design, the wind shield does not need to be installed on the designed circuit board, and the original wire layout of the circuit board is not influenced; and the fixed position of the wind shield can realize maximum air volume drainage heat dissipation. In addition, the wind shield is provided with a socket used for transmitting signals, so that the signals can be conducted while air duct drainage is carried out, and the integrated design of the wind shield and the circuit board is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of power amplifiers, and specifically relates to a circuit board with a wind deflector and a power amplifier. Background Art

[0002] A power amplifier is the most basic device in an audio system. It can amplify the weak electrical signals from a signal source and then drive them to the subsequent stage for output. In order to make it operate more stably, heat dissipation is an important aspect to consider. During the heat dissipation process, an air duct deflector is used for air diversion to achieve a better heat dissipation effect.

[0003] At present in the market, the power amplifier mainly uses a fan for air-cooled heat dissipation inside, so a dedicated air duct is designed inside, including using a wind deflector to guide the air flow. However, most of the wind deflectors inside the current power amplifier devices are made by separate mold opening, which does not fit well with the internal layout of the power amplifier device. Sometimes, in order to consider the installation of the air duct, it is necessary to affect the wire layout inside the power amplifier device, thereby increasing the production and assembly difficulty, as well as the corresponding structural cost. Content of the Utility Model

[0004] The purpose of the utility model is to provide a circuit board with a wind deflector and a power amplifier, aiming to solve the technical problem that the wind deflector inside the current power amplifier device is separately molded, which will affect the original wire layout when assembled on the circuit board and increase the installation difficulty.

[0005] To achieve the above purpose, the utility model provides a circuit board with a wind deflector, including a power supply board for supplying power to the circuit board with the wind deflector;

[0006] An output board electrically connected to the power supply board;

[0007] A radiator for dissipating heat from the power supply board and the output board;

[0008] A fan for blowing air to the radiator to cool the radiator;

[0009] A wind deflector for guiding the air blown out by the fan to the radiator.

[0010] Preferably, the output board is located on one side of the power supply board. A notch is provided at one end of the output board close to the power supply board, and the fan is arranged at the notch.

[0011] Preferably, the output board is located above the radiator, the radiator is located on one side of the power supply board, and the radiator and the output board are on the same side of the power supply board, so that the fan faces the radiator.

[0012] Preferably, the wind deflector is arranged vertically, with one end thereof disposed between the radiator and the power supply board, and the other end thereof disposed between the fan and the power supply board.

[0013] Preferably, the wind deflector is provided with a first socket and a second socket, and the first socket and the second socket are electrically connected to each other;

[0014] The output board is provided with an output socket, the power supply board is provided with a third socket and a fourth socket, and the third socket and the fourth socket are electrically connected to each other. One end of the first wiring is connected to the first socket, and the other end thereof is connected to the output socket; one end of the second wiring is connected to the second socket, and the other end thereof is connected to the third socket.

[0015] Preferably, the output board is further provided with a measurement module, and the output socket is electrically connected to the measurement module, such that the measurement module detects the voltage and current of the output signal and outputs the same through the output socket.

[0016] Preferably, the wind deflector is provided with a through hole, one end of the first wiring is snap-connected to the first socket, and the other end thereof passes through the through hole and is connected to the output socket.

[0017] Preferably, the wind deflector is further provided with a first welding position and a second welding position, the power supply board is provided with a first row of pins and a second row of pins, and the first row of pins is fixedly welded to the first welding position, and the second row of pins is fixedly welded to the second welding position.

[0018] Preferably, a plurality of grooves for placing power lines are further formed at the upper end of the wind deflector.

[0019] Preferably, the radiator includes a plurality of heat dissipation fins.

[0020] In addition, the present invention further provides a power amplifier, which uses the circuit board with a wind deflector as described in any one of the above.

[0021] The present invention discloses a circuit board with a wind deflector and a power amplifier, which have the following beneficial effects:

[0022] 1. The layout design of the circuit board already includes a radiator, a fan and a wind deflector, and there is no need to install a wind deflector on the already designed circuit board, which affects the original wire layout of the circuit board; and one end of the wind deflector is located between the power supply board and the radiator, and the other end is located between the fan and the power supply board. This fixed position can achieve maximum air volume diversion and heat dissipation.

[0023] 2. In addition, a socket for transmitting signals is provided on the wind deflector, which can conduct signals while performing air duct diversion, realizing the integrated design of the wind deflector and the circuit board, greatly reducing the time and cost required for mold opening in the structural design, and achieving modular design. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0025] Figure 1 is a schematic structural diagram of the circuit board with a wind deflector of the present invention;

[0026] Figure 2 is Figure 1 a partial enlarged schematic diagram of part A in

[0027] Figure 3 is a schematic top view structural diagram of the circuit board with a wind deflector of the present invention.

[0028] In the drawings: 1 - power supply board, 11 - third socket, 12 - first row of pins, 13 - second row of pins, 2 - output board, 21 - notch, 22 - output socket, 3 - radiator, 4 - fan, 5 - wind deflector, 51 - first socket, 52 - second socket, 53 - through hole, 54 - groove, 6 - first wiring, 7 - second wiring.

[0029] The realization of the object, functional features and advantages of the present invention will be further described with reference to the embodiments and the drawings. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0031] It should be noted that if there are directional indications in the embodiments of the present invention, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0032] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present utility model, such descriptions of "first", "second", etc. are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0033] As Figures 1 to 3 shown, a circuit board with a wind deflector includes a power supply board 1, which is used to supply power to the circuit board with the wind deflector;

[0034] an output board 2, which is electrically connected to the power supply board 1;

[0035] a radiator 3, which is used to dissipate heat from the power supply board 1 and the output board 2;

[0036] a fan 4, which is used to blow air towards the radiator 3 to cool the radiator 3;

[0037] a wind deflector 5, which is used to direct the air blown out by the fan 4 towards the radiator 3.

[0038] This solution provides a novel circuit board with a wind deflector. The initial design of the circuit board includes a power supply board 1, an output board 2, a radiator 3, a fan 4, and a wind deflector 5. Through the combined action of the radiator 3, the fan 4, and the wind deflector 5, it has a good cooling effect on the circuit board. The wind deflector 5 is directly designed on the initial structure of the circuit board (power amplifier), and there is no need to reinstall the wind deflector 5 on the already designed circuit board later, which affects the original wire layout of the circuit board.

[0039] The wind deflector 5 in this solution is a rectangular circuit board on the entire circuit board; the power supply board 1 is also a rectangular circuit board, and usually it is set slightly wider than the wind deflector 5.

[0040] Further, the output board 2 is located on one side of the power supply board 1. A notch 21 is provided at one end of the output board 2 close to the power supply board 1, and the fan 4 is arranged at the notch 21. In order to further reduce the installation volume of the entire circuit board, the fan 4 is arranged at the notch 21 of the power supply board 1. At the same time, the fan 4 is arranged close to the output board 2, which also has a certain cooling effect.

[0041] Further, the wind deflector 5 is vertically arranged, and the output board 2 is located above the radiator 3, and the radiator 3 is located on one side of the power supply board 1. The radiator 3 and the output board 2 are on the same side of the power supply board 1, so that the fan 4 faces the radiator 3 directly. The radiator 3 is the main component for heat dissipation. In this solution, the radiator 3 is closely arranged against the power supply board 1 and the output board 2, and has a good heat dissipation effect on both of them.

[0042] Further, one end of the wind deflector 5 is arranged between the radiator 3 and the power supply board 1, and the other end is arranged between the fan 4 and the power supply board 1. As Figure 1 or Figure 3 shown, during actual installation, the output board 2 is installed directly above the radiator 3, the fan 4 is installed at the notch 21 of the output board 2, the power supply board 1 is installed on the right side of the radiator 3, the wind deflector 5 is placed on the right side of the fins of the radiator 3, the right side of the wind deflector 5 is the power supply board 1, and the wind deflector 5 is vertically placed; and the leading end of the wind deflector 5 extends into the gap between the fan 4 and the power supply board 1. The fan 4 faces the radiator 3 directly, and the wind blown by the fan 4 is guided by the wind deflector 5 and blows directly to the radiator 3, having a good temperature reduction and heat dissipation effect.

[0043] Further, a first socket 51 and a second socket 52 are provided on the wind deflector 5, and the first socket 51 and the second socket 52 are electrically connected;

[0044] An output socket 22 is provided on the output board 2, a third socket 11 and a fourth socket are provided on the power supply board 1, and the third socket 11 and the fourth socket (not shown in the figure) are electrically connected. One end of the first wiring 6 is connected to the first socket 51, and the other end is connected to the output socket 22; one end of the second wiring 7 is connected to the second socket 52, and the other end is connected to the third socket 11.

[0045] As Figure 1 shown, a first socket 51 (usually a surface mount socket) and a second socket 52 (usually a vertical socket) are provided on the wind deflector 5; an output socket 22 (usually a vertical socket) is provided at the right side edge of the output board 2; a third socket 11 (usually a vertical socket) is installed at the upper right of the power supply board 1, and a fourth socket is also provided at a position close to the board edge on its right side. One end of the first wiring 6 (usually an FPC cable) is buckled on the first socket 51 on the wind deflector 5, and the other end is fixed on the output socket 22 of the output board 2. One end of the second wiring 7 (usually an FPC cable) is inserted into the second socket 52 of the wind deflector 5, and the other end is fixed on the third socket 11 of the power supply board 1. A wiring is provided between the first socket 51 and the second socket 52 of the wind deflector 5 to transmit signals, and the electrical sockets of the power supply board 1 converge the signals to the fourth socket through wiring.

[0046] First, the wind deflector 5 of this solution is designed to maximize the air volume diversion and heat dissipation. Second, while diverting the air duct, it can also conduct signals, realizing the integrated design of the wind deflector 5 and the circuit board, greatly reducing the time and cost required for mold opening during the structural design, and realizing the modular design. Moreover, the wind deflector 5 can be disassembled together with the power supply board 1, facilitating the user to repair and replace the components of the circuit board.

[0047] Furthermore, a measurement module is also provided on the output board 2. The output socket 22 is electrically connected to the measurement module, enabling the measurement module to detect the voltage and current of the output signal and output them through the output socket 22. On the left side of the output board 2, there is a measurement module with a power-on chip for detecting the voltage and current of the output signal. The measurement module is connected to the output socket 22 and can output the detected signal through the output socket 22.

[0048] When the circuit board (power amplifier) of this solution starts to work, the fan 4 starts. The wind deflector 5 concentrates the cold air on the fins of the radiator 3 to maximize the air volume diversion and heat dissipation. At the same time, the measurement module on the output board 2 outputs a sampling signal, which is introduced into the wind deflector 5 through the first wiring 6. Along the wiring on the wind deflector 5, the signal is guided to the second socket 52 at the other end of the wind deflector 5. Then the signal is input into the power supply board 1 through the second wiring harness and finally output to the front panel through the fourth socket for the MCU on the front panel to detect the current output voltage and output current.

[0049] Furthermore, through holes 53 are formed on the wind deflector 5. One end of the first wiring 6 is snap-connected to the first socket 51, and the other end passes through the through holes 53 and is connected to the output socket 22.

[0050] To better fix the first wiring 6, through holes 53 for the first wiring 6 to pass through are directly formed on the wind deflector 5. Generally, the through holes 53 are formed below the first socket 51 and are usually rectangular in shape. One end of the first wiring 6 is buckled on the first socket 51 on the wind deflector 5, passes through the upper rectangular through holes 53, and is fixed on the output socket 22 of the output board 2.

[0051] Furthermore, a first welding position and a second welding position are also provided on the wind deflector 5. First row pins 12 and second row pins 13 are provided on the power supply board 1. The first row pins 12 are welded and fixed to the first welding position, and the second row pins 13 are welded and fixed to the second welding position.

[0052] In this embodiment, a four-hole welding position (i.e., the first welding position and the second welding position) is provided at each of the positions near the upper left and upper right of the windshield 5. A 4-pin row pin (i.e., the first row pin 12 and the row pin) is placed at each of the left and right positions on the long side of the power supply board 1. After the four-hole welding positions on the windshield 5 are perpendicularly aligned with the four-pin row pins of the aligned power supply board 1, they are welded and fixed.

[0053] Further, a plurality of grooves 54 for placing power lines are formed at the upper end of the windshield 5. Generally, 2 to 3 grooves 54 are provided at the top of the windshield 5, and the power lines of the power supply board 1 can be stuck in the grooves 54 to achieve a better installation and fixing effect.

[0054] Further, the radiator 3 includes a plurality of heat dissipation fins. The radiator 3 of this solution is composed of a plurality of heat dissipation fins and has a good heat dissipation effect.

[0055] In addition, the present utility model also proposes a power amplifier that uses the circuit board with a windshield as described in any one of the above. This power amplifier uses the circuit board with a windshield as described above. That is, the power amplifier has the same beneficial effects as the above-mentioned circuit board with a windshield, and will not be elaborated here one by one.

[0056] The above are only the preferred embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structural transformation made by using the content of the specification and drawings of the present utility model under the inventive concept of the present utility model, or direct / indirect application in other related technical fields, is included in the patent protection scope of the present utility model.

Claims

1. A circuit board with a windshield, characterized in that: include: A power board (1) for supplying power to the output board, the heat sink and the fan; The output board (2) is electrically connected to the power board (1); The heat sink (3) is used to dissipate heat from the power board (1) and the output board (2); The fan (4) is used to blow air toward the radiator (3) to cool the radiator (3); A wind shield (5) is used to direct the air outlet of the fan (4) toward the radiator (3).

2. A circuit board with a windshield according to claim 1, characterized in that: The output plate (2) is located on one side of the power plate (1); a notch (21) is provided at one end of the output plate (2) close to the power plate (1); and the fan (4) is arranged at the notch (21).

3. A circuit board with a windshield according to claim 2, characterized in that: The output plate (2) is located above the radiator (3), the radiator (3) is located on one side of the power board (1), and the radiator (3) and the output plate (2) are located on the same side of the power board (1), so that the fan (4) faces the radiator (3).

4. A circuit board with a windshield according to claim 2 or 3, characterized in that: The wind shield (5) is arranged vertically, and one end of the wind shield (5) is arranged between the radiator (3) and the power board (1), and the other end of the wind shield (5) is arranged between the fan (4) and the power board (1).

5. A circuit board with a windshield according to claim 1, characterized in that: The windshield plate (5) is provided with a first socket (51) and a second socket (52), and the first socket (51) and the second socket (52) are electrically connected; The output board (2) is provided with an output socket (22), the power board (1) is provided with a third socket (11) and a fourth socket, the third socket (11) and the fourth socket are electrically connected, one end of the first wiring (6) is connected to the first socket (51), and the other end thereof is connected to the output socket (22); one end of the second wiring (7) is connected to the second socket (52), and the other end thereof is connected to the third socket (11).

6. A circuit board with a windshield according to claim 5, characterized in that: The output board (2) is also provided with a measuring module, and the output socket (22) is electrically connected to the measuring module, so that the measuring module detects the voltage and current of the output signal and outputs it through the output socket (22).

7. A circuit board with a windshield according to claim 5, characterized in that: The wind shield (5) is provided with a through hole (53); one end of the first wiring (6) is buckled and connected to the first socket (51), and the other end thereof passes through the through hole (53) and is connected to the output socket (22).

8. A circuit board with a windshield according to claim 1, characterized in that: The windshield plate (5) is also provided with a first welding position and a second welding position, and the power board (1) is provided with a first row of needles (12) and a second row of needles (13), the first row of needles (12) being welded and fixed at the first welding position, and the second row of needles (13) being welded and fixed at the second welding position.

9. A circuit board with a windshield according to claim 1, characterized in that: The upper end of the wind shield (5) is also provided with a plurality of grooves (54) for accommodating power cords.

10. A power amplifier, characterized in that: Use the circuit board with windshield as described in any one of claims 1-9.

Images