High-efficiency digital switching power supply power amplifier
By introducing a multi-fan cooling design and a toothed heat sink into the high-efficiency digital switching power amplifier, the problem of insufficient cooling coverage of a single fan is solved, achieving a more efficient cooling effect, reducing equipment maintenance costs and failure risks, and improving equipment stability and lifespan.
Patent Information
- Application Number
- CN202423290560.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2034-12-31
AI Technical Summary
The existing single-fan cooling solution for high-efficiency digital switching power amplifiers cannot ensure uniform and efficient heat dissipation for all internal heat-generating components, leading to frequent local overheating, affecting electrical performance and service life, and increasing the risk of equipment shutdown in high-temperature or poorly ventilated environments.
It adopts a multi-fan cooling design, combining a serrated heatsink and a rectangular heat dissipation mesh to enhance the heat dissipation coverage, and sets up multiple fans and fan brackets inside the chassis to improve heat dissipation efficiency.
It effectively reduces equipment maintenance costs and system failure risks, improves equipment heat dissipation efficiency and service life, and ensures stable operation in high-temperature or poorly ventilated environments.
Smart Images
Figure CN223714440U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to power amplifier technical field especially relates to high -efficient digital switching power amplifier. BACKGROUND
[0002] High -efficient digital switching power amplifier is an advanced power amplifier technology. Adopt high -frequency switching technology, make power transistor work in the completely on (saturation) or completely cut -off state. When on, transistor presents extremely low on -resistance, and current passes through when loss is extremely small, when cut -off, current is approximately zero, avoid energy consumption. Through digital control strategy (such as pulse width modulation-PWM or pulse frequency modulation-PFM), the on and off time of switch tube can be accurately controlled, and input DC power is efficiently converted into the stable AC or DC power required by load. Its efficiency can be greatly improved to 80 or even higher, compared with traditional linear power amplifier (efficiency is usually 30 %-50 %), greatly reduces the waste of electric energy, and energy can be effectively utilized.
[0003] The traditional high -efficient digital switching power amplifier design is usually equipped with only a single fan as a heat dissipation means inside to control cost and simplify structure. The wind power coverage of this single fan heat dissipation scheme is limited, and it is difficult to ensure that each heating element inside the power amplifier is evenly and efficiently cooled, local overheating phenomenon occurs frequently, and then the electrical performance and service life are affected. When the power amplifier is in a high temperature, closed or poor ventilation working environment, the single fan cannot effectively dissipate the accumulated heat, so that the internal temperature of the power amplifier continues to rise, finally triggers the overheat protection mechanism, forces the equipment to stop, increases the maintenance cost and system failure risk. UTILITY MODEL CONTENTS
[0004] The utility model discloses a high -efficient digital switching power amplifier to solve the wind power coverage of the single fan heat dissipation scheme is limited, and it is difficult to ensure that each heating element inside the power amplifier is evenly and efficiently cooled, local overheating phenomenon occurs frequently, and then the electrical performance and service life are affected. When the power amplifier is in a high temperature, closed or poor ventilation working environment, the single fan cannot effectively dissipate the accumulated heat, so that the internal temperature of the power amplifier continues to rise, finally triggers the overheat protection mechanism, forces the equipment to stop, increases the maintenance cost and system failure risk.
[0005] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme:
[0006] The high-efficiency digital switching power amplifier comprises a high-efficiency digital switching power amplifier body, wherein the high-efficiency digital switching power amplifier body comprises a case bottom plate, a main plate, a case back plate, an output plate, a sub-panel, side plates, a case top cover, an automatic controller I, an automatic controller II, fans, a power switch, a notched heat sink, an overcurrent protector and a fan frame.
[0007] The main plate is installed at the top end of the case bottom plate, the two side plates are arranged at the two sides of the case bottom plate, the case back plate and the sub-panel are arranged at the inner sides of the side plates, the output plate is arranged on the case back plate, the case top cover is arranged at the top end of the case back plate and the sub-panel, the automatic controller I is arranged on the case back plate, the automatic controller II is arranged on the sub-panel, the fans are respectively arranged at the inner sides of the case back plate and the sub-panel, the notched heat sink is arranged at the top end of the case bottom plate, the overcurrent protector is arranged on the case back plate, and the fan frame is arranged at the inner side of the sub-panel.
[0008] Preferably, the case back plate is provided with a rectangular heat dissipation net arranged in a symmetrical manner, the right side of the case back plate is provided with an output plate mounting port, and the left side of the case back plate is provided with an automatic controller I mounting port.
[0009] Preferably, the inner side of the case back plate is provided with two fans, the fans are arranged at the back side of the rectangular heat dissipation net, and the notched heat sink is arranged opposite to the rectangular heat dissipation net.
[0010] Preferably, the output plate is in bolt connection with the output plate mounting port, and the automatic controller I is in sliding connection with the automatic controller I mounting port.
[0011] Preferably, the outer side of the sub-panel is provided with a large heat dissipation net, the right side of the sub-panel is provided with an automatic controller II mounting port, and the left side of the sub-panel is provided with a power switch mounting port.
[0012] Preferably, the fan frame is arranged at the inner side of the large heat dissipation net, the fans are arranged in the fan frame, and the fan frame is arranged opposite to the main plate.
[0013] Preferably, the automatic controller II mounting port is connected with the automatic controller II, and the power switch mounting port is connected with the power switch.
[0014] Preferably, the overcurrent protector is arranged at the inner side of the case back plate, and the overcurrent protector is arranged at the right side of the output plate.
[0015] Compared with the prior art, the high-efficiency digital switching power amplifier has the following beneficial effects:
[0016] The utility model discloses when using, can pass through the installation of the shovel tooth radiator on the rear side of mainboard, passes through setting up rectangular heat dissipation net on the backboard of the case again, the inside of rectangular heat dissipation net is provided with fan, is provided with big heat dissipation net on the vice panel, is provided with fan frame and fan on the rear side of big heat dissipation net, can be more efficient to the heat in the efficiency digital switching power supply power amplifier body to the outside, is provided with multiple fans and lets the wind power coverage more extensive, has reduced the maintenance cost and system failure risk of equipment. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 The utility model discloses the three -dimensional structure schematic diagram of high -efficient digital switching power supply power amplifier is provided for the utility model;
[0018] Figure 2 The back three -dimensional structure schematic diagram of high -efficient digital switching power supply power amplifier is provided for the utility model;
[0019] Figure 3 The utility model discloses the explosion drawing of high -efficient digital switching power supply power amplifier is provided for the utility model;
[0020] Figure 4 The inside three -dimensional structure schematic diagram of high -efficient digital switching power supply power amplifier is provided for the utility model Figure 1 ;
[0021] Figure 5 The inside three -dimensional structure schematic diagram of high -efficient digital switching power supply power amplifier is provided for the utility model Figure 2 ;
[0022] Figure 6 The utility model discloses the backboard three -dimensional structure schematic diagram of case of high -efficient digital switching power supply power amplifier is provided for the utility model;
[0023] Figure 7 The utility model discloses the vice panel three -dimensional structure schematic diagram of high -efficient digital switching power supply power amplifier is provided for the utility model.
[0024] Fig. in: 1, the case bottom plate;2, mainboard;3, the backboard of case;4, output board;5, vice panel;6, side plate;7, the case top cover;8, automation controller one;9, automation controller two;10, fan;11, power switch;12, shovel tooth radiator;13, overcurrent protector;14, fan frame;15, big heat dissipation net;16, automation controller two installation mouth;17, power switch installation mouth;18, rectangular heat dissipation net;19, output board installation mouth;20, automation controller one installation mouth. DETAILED DESCRIPTION
[0025] Clearly and completely describe the technical scheme in the embodiments of the utility model with reference to the drawings in the embodiments of the utility model, obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments, on the basis of the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without making creative labor belong to the range of protection of the utility model.
[0026] Referring to Figures 1-7 , the high-efficiency digital switching power amplifier includes a high-efficiency digital switching power amplifier body, the high-efficiency digital switching power amplifier body includes a case bottom plate 1, a mainboard 2, a case back plate 3, an output plate 4, a sub-panel 5, a side plate 6, a case top cover 7, an automatic controller one 8, an automatic controller two 9, a fan 10, a power switch 11, a notched heat sink 12, an overcurrent protector 13, and a fan frame 14.
[0027] The mainboard 2 is installed at the top end of the case bottom plate 1, the two side plates 6 are arranged at the two sides of the case bottom plate 1, the case back plate 3 and the sub-panel 5 are arranged inside the side plates 6, the output plate 4 is arranged on the case back plate 3, the case top cover 7 is arranged at the top end of the case back plate 3 and the sub-panel 5, the automatic controller one 8 is arranged on the case back plate 3, the automatic controller two 9 is arranged on the sub-panel 5, the fan 10 is arranged inside the case back plate 3 and the sub-panel 5 respectively, the notched heat sink 12 is arranged at the top end of the case bottom plate 1, the overcurrent protector 13 is arranged on the case back plate 3, and the fan frame 14 is arranged inside the sub-panel 5.
[0028] It should be noted that the mainboard 2 and the automatic controller one 8, the automatic controller two 9, the fan 10, the power switch 11, the notched heat sink 12, and the overcurrent protector 13 are prior art, and specific models and specifications need to be selected and determined according to the actual specifications of the device, and the specific selection calculation method adopts the prior art in the field, so it is not described in detail, and all can provide power supply and control opening and closing through external equipment.
[0029] It should be noted that the high-efficiency digital switching power amplifier takes high-frequency switching technology as the core, and the power transistor works in a fully on or fully off state to reduce power consumption. Through digital control strategies such as pulse width modulation (PWM), the transistor switch is controlled by a fixed frequency pulse signal, and the pulse width (duty cycle) is adjusted to accurately adapt to the load demand, and increasing the duty cycle can increase the output power; there is also pulse frequency modulation (PFM), which changes the pulse frequency according to the load power, and reduces the switching loss when the load is light. After inputting a direct current power supply, the power supply is cut into a pulse signal through high-frequency switching action and digital control, and then processed smoothly by a filter circuit, and finally converted into stable alternating current or direct current power required by the load.
[0030] Further, the rear plate 3 of the cabinet is provided with a rectangular heat dissipation net 18 in symmetrical distribution, the right side of the rear plate 3 of the cabinet is provided with an output plate mounting port 19, and the left side of the rear plate 3 of the cabinet is provided with an automatic controller I mounting port 20.
[0031] Further, the inner side of the rear plate 3 of the cabinet is provided with two fans 10, the fans 10 are arranged at the rear side of the rectangular heat dissipation net 18, and the toothed heat sink 12 is arranged opposite to the rectangular heat dissipation net 18.
[0032] Further, the output plate 4 is bolted with the output plate mounting port 19, and the automatic controller I 8 is slidingly connected with the automatic controller I mounting port 20.
[0033] Further, the outer side of the sub-panel 5 is provided with a large heat dissipation net 15, the right side of the sub-panel 5 is provided with an automatic controller II mounting port 16, and the left side of the sub-panel 5 is provided with a power switch mounting port 17.
[0034] Further, the fan frame 14 is arranged at the inner side of the large heat dissipation net 15, the fan 10 is arranged in the fan frame 14, and the fan frame 14 is arranged opposite to the mainboard 2.
[0035] Further, the automatic controller II mounting port 16 is connected with the automatic controller II 9, and the power switch mounting port 17 is connected with the power switch 11.
[0036] Further, the overcurrent protector 13 is arranged at the inner side of the rear plate 3 of the cabinet, and the overcurrent protector 13 is arranged at the right side of the output plate 4.
[0037] Working principle: first, the side plate 6 is bolted to the cabinet bottom plate 1, then the mainboard 2 is bolted to the top end of the cabinet bottom plate 1, and then the toothed heat sink 12 is bolted to the heat generating part of the mainboard 2.
[0038] Then, the output plate 4 is bolted to the output plate mounting port 19, the automatic controller I 8 is bolted to the automatic controller I mounting port 20, the two fans 10 are bolted to the rear side of the rectangular heat dissipation net 18, the overcurrent protector 13 is bolted to the inner side of the rear plate 3 of the cabinet, the fan 10 is bolted to the fan frame 14, the fan frame 14 is bolted to the rear side of the large heat dissipation net 15, the automatic controller II 9 is bolted to the automatic controller II mounting port 16, and the power switch 11 is bolted to the power switch mounting port 17.
[0039] Finally, the rear plate 3 and the auxiliary panel 5 are bolted to the inner side of the side plate 6 and oppositely arranged, and then the top cover 7 is bolted to the side plate 6, the rear plate 3 and the auxiliary panel 5.
[0040] The above merely describes a preferred embodiment of the present application, but the protection scope of the present application is not limited to this. Any skilled person in the art, according to the technical scheme and the inventive concept of the present application, can make equivalent replacement or change within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.
Claims
1. A high performance digital switching power amplifier, comprising a high performance digital switching power amplifier body, characterized in that, The high-performance digital switching power amplifier body includes a case bottom plate (1), a main plate (2), a case back plate (3), an output plate (4), a sub-panel (5), a side plate (6), a case top cover (7), an automatic controller I (8), an automatic controller II (9), a fan (10), a power switch (11), a notched heat sink (12), an over-current protector (13), a fan frame (14); The main plate (2) is installed at the top end of the case bottom plate (1), the two side plates (6) are arranged on the two sides of the case bottom plate (1), the case back plate (3) and the sub-panel (5) are arranged on the inner side of the side plate (6), the output plate (4) is arranged on the case back plate (3), the case top cover (7) is arranged at the top end of the case back plate (3) and the sub-panel (5), the automatic controller I (8) is arranged on the case back plate (3), the automatic controller II (9) is arranged on the sub-panel (5), the fan (10) is arranged on the inner side of the case back plate (3) and the sub-panel (5), the notched heat sink (12) is arranged at the top end of the case bottom plate (1), the over-current protector (13) is arranged on the case back plate (3), and the fan frame (14) is arranged on the inner side of the sub-panel (5).
2. The high-efficiency digitally-switched power supply power amplifier of claim 1, wherein, The case back plate (3) is provided with a rectangular heat dissipation net (18) arranged symmetrically, the right side of the case back plate (3) is provided with an output plate mounting port (19), and the left side of the case back plate (3) is provided with an automatic controller I mounting port (20).
3. The high efficiency digitally switched power supply power amplifier of claim 2, wherein, The inner side of the case back plate (3) is provided with two fans (10), the fans (10) are arranged on the back side of the rectangular heat dissipation net (18), and the notched heat sink (12) is arranged opposite to the rectangular heat dissipation net (18).
4. The high efficiency digital switching power supply power amplifier of claim 2 wherein, The output plate (4) is in bolt connection with the output plate mounting port (19), and the automatic controller I (8) is in sliding connection with the automatic controller I mounting port (20).
5. The high efficiency digitally switched power supply power amplifier of claim 1 wherein, The outer side of the sub-panel (5) is provided with a large heat dissipation net (15), the right side of the sub-panel (5) is provided with an automatic controller II mounting port (16), and the left side of the sub-panel (5) is provided with a power switch mounting port (17).
6. The high-efficiency digitally-switched power supply power amplifier of claim 5, wherein, The fan frame (14) is arranged on the inner side of the large heat dissipation net (15), the fan (10) is arranged in the fan frame (14), and the fan frame (14) is arranged opposite to the main plate (2).
7. The high efficiency digitally switched power supply power amplifier of claim 5 wherein, The automatic controller II mounting port (16) is connected with the automatic controller II (9), and the power switch mounting port (17) is connected with the power switch (11).
8. The high-efficiency digitally-switched power supply power amplifier of claim 1, wherein, The over-current protector (13) is arranged on the inner side of the case back plate (3), and the over-current protector (13) is arranged on the right side of the output plate (4).