Power amplifier structure

Abstract

The utility model belongs to the technical field of power amplifiers, and particularly relates to a power amplifier structure which comprises a machine body middle frame, an upper panel and a lower panel are fixedly mounted at the top and the bottom of the machine body middle frame respectively, clamping grooves are formed in the left side and the right side of the upper panel and the left side and the right side of the lower panel respectively, and ventilation plates are arranged on the clamping grooves. According to the utility model, the left and right sides of the upper panel and the lower panel are respectively provided with the ventilation plates which can be rapidly disassembled and assembled, and the structure design of the rapid disassembly assembly is adopted, so that a user can conveniently disassemble the ventilation plates and the matched dustproof nets, dust and impurities accumulated in long-time use are effectively removed, heat on the circuit board is rapidly conducted out through the heat conduction assembly, and the service life of the circuit board is prolonged. Compared with a traditional single air cooling mode, the liquid cooling technology can absorb heat of a high heating element more efficiently, the temperature of a core component is reduced, and the service life of equipment is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to power amplifier technology field, concretely is a kind of power amplifier structure. BACKGROUND

[0002] Power amplifier (power amplifier) is a kind of electronic equipment for enhancing the intensity of audio signal, so that it can drive loudspeaker to emit high-quality sound. It plays a key role in audio system, and is widely used in home theater, professional sound (such as concert and theater), public broadcasting system and car audio, etc. By amplifying the weak electric signal of sound source equipment to sufficient level, power amplifier ensures that audio output is clear and not distorted, so as to provide excellent auditory experience.

[0003] Chinese patent (authorized announcement number: CN 207911218 U, authorized announcement date: 2018.09.25) proposes a kind of power amplifier structure, including front panel, back panel, cabinet and annular transformer, circuit board and heat sink contained in the cabinet, the cabinet both sides front end is respectively provided with ventilation grid, the front panel both ends is symmetrically provided with conical ventilation window, the back panel both ends is symmetrically provided with annular openwork structure exhaust port, the heat sink is symmetrically arranged in the cabinet left and right sides, the heat sink includes radiator and cooling fan, the cooling fan is arranged in the rear end of the radiator.The power amplifier structure of the utility model, the heat sink is placed in the cabinet left and right symmetrically, the design, layout of conical ventilation window on front panel, annular openwork structure exhaust port of back panel and heat sink significantly improve the heat dissipation efficiency.Set up display unit showing the working temperature in cabinet, monitor power amplifier working temperature rise, ensure its normal work.

[0004] The above-mentioned power amplifier structure is inconvenient to disassemble and assemble quickly when dissipating heat inside the cabinet, and dust, fibers and other impurities generated during long-term use will accumulate on the conical ventilation window and annular openwork structure exhaust port, which is difficult to clean and causes the heat dissipation effect to decrease. Therefore, we propose a kind of power amplifier structure. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model provides a kind of power amplifier structure, by setting up the ventilation plate that can be disassembled and assembled quickly on the left and right sides of upper panel and lower panel, and adopting the structure design of quick-release assembly, user can conveniently disassemble ventilation plate and matched dust screen, effectively remove the dust and impurities accumulated during long-term use, heat on circuit board is quickly exported through heat conduction component, and composite heat dissipation path is formed by cooperating with cooling fan, compared with traditional single air cooling mode, liquid cooling technology can more efficiently absorb the heat of high-heat component, reduce the temperature of core component, prolong the service life of equipment, solve the background problem.

[0006] To achieve the above object, the utility model discloses a power amplifier structure through the following technical schemes, including the body middle frame, the top and bottom of body middle frame are fixedly installed with upper panel and lower panel respectively, the left and right sides of upper panel and lower panel are all provided with the clamping groove, be provided with the ventilation plate on the clamping groove, the ventilation plate is provided with a plurality of ventilation grooves, and the side of ventilation plate close to circuit board is threadedly covered with the dust screen, the quick release assembly is installed between ventilation plate and clamping groove, the left and right sides in the inside of body middle frame are installed with the cooling fan, the rear side in the inside of body middle frame is installed with circuit board, the temperature sensor is installed on circuit board, and the left and right sides of circuit board are all installed with the heat conduction component, the bottom four corners of lower panel are all provided with support component.

[0007] Preferably, the quick release assembly includes a spring, the left and right sides of the ventilation plate are provided with a sliding groove three, the sliding groove three is slidably connected with a plug, the left and right sides of the clamping groove are provided with a slot, the plug is inserted into the slot, the side of the sliding groove three away from the slot is provided with a circular groove, the spring is arranged in the circular groove, the top of the sliding groove three is provided with a sliding groove one, the top of the sliding groove one is provided with a sliding groove two, the top side of the plug is fixedly connected with a connecting plate, the connecting plate is slidably connected with the sliding groove one, the top side of the connecting plate is fixedly connected with a sliding block, the sliding block is slidably connected with the sliding groove two.

[0008] Preferably, the heat conduction component includes a heat conduction plate and a micro liquid cooling pump, the heat conduction plate and the micro liquid cooling pump are installed on the circuit board, the inside of the heat conduction plate is provided with a liquid cooling groove, the input end of the micro liquid cooling pump is fixedly communicated with the liquid cooling groove through a pipeline, the output end of the micro liquid cooling pump is fixedly communicated with a heat dissipation pipe, and the output end of the heat dissipation pipe is fixedly communicated with the liquid cooling groove.

[0009] Preferably, the support component includes a support block, the support block is fixedly connected to the bottom side of the lower panel, one side of the lower panel is provided with a rotating plate, the rotating plate is hingedly connected to the bottom side of the lower panel, and the side of the rotating plate close to the support block abuts against the outer surface of the support block.

[0010] Preferably, the bottom side of the support block is fixedly connected with an elastic pad one, and the bottom side of the rotating plate is fixedly connected with an elastic pad two.

[0011] Preferably, the side of the rotating plate away from the support block is fixedly connected with an iron sheet, and the bottom side of the lower panel is fixedly connected with a magnetic sheet.

[0012] Preferably, the front right side of the body middle frame is provided with a placing groove, the inside of the placing groove is fixedly connected with a fixed rod between the upper side and the lower side, and the fixed rod is wound with a carrying strap.

[0013] Preferably, the front side of the machine body frame is provided with a display screen and a volume adjusting knob.

[0014] Preferably, the rear side of the machine body frame is provided with several interfaces.

[0015] Preferably, the inner front side of the machine body frame is mounted with a battery.

[0016] The utility model provides a kind of power amplifier structure.Compared with prior art, it has the following beneficial effects:

[0017] 1, the power amplifier structure, the ventilation plate of quick detachable is arranged in the left and right sides of upper panel and lower panel, and the structure design of quick release assembly is adopted, user can conveniently detach ventilation plate and matched dust screen, effectively remove dust and impurities accumulated in long time use.

[0018] 2, the power amplifier structure, heat component is used to quickly export the heat on circuit board, and cooperate with the composite heat dissipation path formed by heat dissipation fan, compared with traditional single air cooling mode, liquid cooling technology can more efficiently absorb the heat of high heat generating element, reduce core component temperature, prolong equipment life.

[0019] 3, the power amplifier structure, the elastic pad buffer vibration is arranged in support assembly, and the adsorption design of magnetic sheet and iron sheet makes rotating plate can be stably unfolded or stored, and by setting two kinds of support mode (support block and reversible rotating plate), indoor and outdoor multi-scene adaptive support is realized, support block is used as basic support, its height is lower, and is suitable for indoor placement, and rotating plate can provide higher support height after unfolding, and equipment bottom can be lifted to cope with complex outdoor ground. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the main body front view structure schematic diagram of the utility model;

[0021] Figure 2 It is the main body rear view structure schematic diagram of the utility model;

[0022] Figure 3 It is the main body split structure schematic diagram of the utility model;

[0023] Figure 4 It is the machine body frame internal structure schematic diagram of the utility model;

[0024] Figure 5 It is the quick release assembly structure schematic diagram of the utility model;

[0025] Figure 6 It is the lower panel bottom structure schematic diagram of the utility model;

[0026] Figure 7 It is the utility model Figure 5Structure schematic view of the middle A is enlarged;

[0027] Figure 8 For the utility model Figure 6 Structure schematic view of the middle B is enlarged.

[0028] In the figure: 1, the body middle frame; 2, the placing groove; 3, the fixed rod; 4, the carrying band; 5, the display screen; 6, the volume adjusting knob; 7, the interface; 8, the upper panel; 9, the lower panel; 10, the ventilation plate; 11, the heat dissipation fan; 12, the circuit board; 13, the temperature sensor; 14, the battery; 15, the dust screen; 16, the heat conduction plate; 17, the heat dissipation pipe; 18, the micro liquid cooling pump; 19, the ventilation groove; 20, the clamping groove; 21, the round groove; 22, the spring; 23, the sliding groove one; 24, the sliding groove two; 25, the sliding block; 26, the insertion slot; 27, the insertion block; 28, the connecting plate; 29, the sliding groove three; 30, the support block; 31, the elastic pad one; 32, the rotating plate; 33, the elastic pad two; 34, the iron sheet; 35, the magnetic sheet. DETAILED DESCRIPTION

[0029] The technical scheme in the embodiments of the utility model will be apparently and completely described in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative efforts belong to the range protected by the utility model.

[0030] Please refer to Figures 1-8 The utility model provides a kind of technical scheme: a power amplifier structure, including body middle frame 1, the top and bottom of body middle frame 1 are respectively fixedly installed with upper panel 8 and lower panel 9, and the left and right sides of upper panel 8 and lower panel 9 are all provided with clamping groove 20, clamping groove 20 is provided with ventilation plate 10, ventilation plate 10 is provided with a plurality of ventilation grooves 19, and ventilation plate 10 is provided with dust screen 15 on the side close to circuit board 12, ventilation plate 10 is installed with quick release assembly between clamping groove 20, the left and right sides in the inside of body middle frame 1 are installed with heat dissipation fan 11, circuit board 12 is installed in the rear side in the inside of body middle frame 1, temperature sensor 13 is installed on circuit board 12, and heat conduction assembly is installed on the left and right sides of circuit board 12, and support assembly is provided at the bottom of the four corners of lower panel 9.

[0031] When the power amplifier works, the electronic components on the circuit board 12 generate heat, and the temperature sensor 13 monitors the internal temperature of the machine in real time. When the temperature reaches the preset threshold, the left and right heat dissipation fans 11 are triggered to operate. The heat dissipation fan 11 inhales external air through the ventilation slot 19 on the ventilation plate 10 on the lower panel 9, and the air is filtered by the dust screen 15 and then enters the machine body. The heat of the circuit board 12 and the high-heat components is absorbed, and then discharged by the heat dissipation fan 11 from the ventilation slot on the ventilation plate 10 on the upper panel 8, forming a directional heat dissipation flow channel. The ventilation plate 10 is quickly disassembled through the quick release assembly and the clamping groove 20. Users can conveniently clean the dust on the ventilation slot 19 and the dust screen 15 to ensure long-term stability of the heat dissipation efficiency. The heat conduction assembly on the left and right sides of the circuit board 12 quickly conducts heat to the vicinity of the heat dissipation path, and cooperates with the forced air cooling of the heat dissipation fan 11 to form a synergistic heat dissipation, reducing the temperature of the core components. The support assembly at the bottom of the lower panel 9 provides various support functions to ensure that the equipment runs horizontally in complex environments.

[0032] The quick release assembly includes a spring 22. The left and right sides of the ventilation plate 10 are provided with sliding grooves three 29. The sliding grooves three 29 are slidably connected with plug blocks 27. The left and right sides of the clamping groove 20 are provided with plug slots 26. The plug blocks 27 are inserted into the plug slots 26. The side of the sliding grooves three 29 away from the plug slots 26 is provided with a circular groove 21. The spring 22 is arranged in the circular groove 21. The top of the sliding grooves three 29 is provided with a sliding groove one 23. The top of the sliding groove one 23 is provided with a sliding groove two 24. The top side of the plug block 27 is fixedly connected with a connecting plate 28. The connecting plate 28 is slidably connected with the sliding groove one 23. The top side of the connecting plate 28 is fixedly connected with a sliding block 25. The sliding block 25 is slidably connected with the sliding groove two 24.

[0033] When the quick release assembly is used, the ventilation plate 10 is slidably connected with the plug blocks 27 through the sliding grooves three 29 on the left and right sides. The plug blocks 27 are inserted into the plug slots 26 on the left and right sides of the clamping groove 20 to fix the ventilation plate 10 with the machine body. The spring 22 is installed in the circular groove 21 at the end of the sliding grooves three 29 to provide elastic thrust so that the plug blocks 27 are always in close contact with the plug slots 26 to ensure that the ventilation plate 10 is stably fixed. When disassembly is needed, the sliding block 25 is slid in the sliding groove two 24 to drive the connecting plate 28 to move along the sliding groove one 23, compress the spring 22 and drive the plug blocks 27 to separate from the plug slots 26, thereby completing the quick disassembly of the ventilation plate 10.

[0034] The heat conduction assembly includes a heat conduction plate 16 and a micro liquid cooling pump 18. The heat conduction plate 16 and the micro liquid cooling pump 18 are both installed on the circuit board 12. The heat conduction plate 16 is internally provided with a liquid cooling groove. The input end of the micro liquid cooling pump 18 is fixedly communicated with the liquid cooling groove through a pipeline. The output end of the micro liquid cooling pump 18 is fixedly communicated with a heat dissipation pipe 17. The output end of the heat dissipation pipe 17 is fixedly communicated with the liquid cooling groove.

[0035] When the heat conduction assembly is in use, the heat conduction plate 16 is tightly attached to the high-heat-emitting elements such as the power amplification module on the circuit board 12, quickly conducting the heat to the internal liquid cooling tank, the micro liquid cooling pump 18 is connected with the liquid cooling tank through the pipeline, driving the cooling liquid to circulate, after the cooling liquid absorbs the heat in the liquid cooling tank, it is pumped into the heat dissipation pipe 17 by the micro liquid cooling pump 18, the heat is released through the heat dissipation pipe 17 and the air convection, and the cooled liquid returns to the liquid cooling tank, forming a closed loop circulation, which significantly improves the heat dissipation efficiency through the cooperation of liquid cooling and air cooling, and avoids the performance decline or damage caused by local high temperature.

[0036] The support assembly includes a support block 30 fixedly connected to the bottom side of the lower panel 9, one side of the lower panel 9 is provided with a rotating plate 32 hinged to the bottom side of the lower panel 9, and the side of the rotating plate 32 close to the support block 30 abuts against the outer surface of the support block 30.

[0037] The bottom side of the support block 30 is fixedly connected with an elastic pad one 31, and the bottom side of the rotating plate 32 is fixedly connected with an elastic pad two 33.

[0038] The side of the rotating plate 32 away from the support block 30 is fixedly connected with an iron sheet 34, and the bottom side of the lower panel 9 is fixedly connected with a magnetic sheet 35.

[0039] When the support assembly is in use, the support block 30 is fixed to the bottom side of the lower panel 9, the elastic pad one 31 at the bottom side buffers slight vibration, and is suitable for indoor placement, after the rotating plate 32 is unfolded through the hinge structure, the elastic pad two 33 at the bottom side contacts the ground, providing higher support height, and being suitable for outdoor use, before unfolding, the iron sheet 34 is adsorbed and fixed with the magnetic sheet 35 at the bottom side of the lower panel 9, avoiding loosening of the rotating plate 32.

[0040] The front right side of the machine body middle frame 1 is provided with a placing groove 2, a fixed rod 3 is fixedly connected between the upper and lower sides in the interior of the placing groove 2, and a hand carrying belt 4 is wound on the fixed rod 3.

[0041] The front side of the machine body middle frame 1 is provided with a display screen 5 and a volume adjusting knob 6, the display screen 5 displays the working state of the power amplifier such as temperature and input signal in real time, and the volume adjusting knob 6 is used for manually adjusting the audio output intensity.

[0042] The rear side of the machine body middle frame 1 is provided with a plurality of interfaces 7, providing a plurality of standard audio input / output interfaces such as RCA, XLR and USB, supporting external sound source equipment, loudspeakers and other expansion hardware, and meeting the needs of diversified application scenarios.

[0043] The inside front side of the machine body middle frame 1 is provided with a battery 14, which can provide short-time power support when the external power is interrupted, ensuring the continuous operation of the power amplifier, and being suitable for emergency or mobile use scenarios.

[0044] Working principle: When the power amplifier works, the electronic components on the circuit board 12 generate heat, and the temperature sensor 13 monitors the internal temperature of the machine in real time. When the temperature reaches the preset threshold, the left and right heat dissipation fans 11 are triggered to operate. The heat dissipation fan 11 inhales external air through the ventilation slot 19 on the ventilation plate 10 on the lower panel 9, and the air is filtered by the dust screen 15 before entering the machine body. The heat of the circuit board 12 and the high heat generating components is absorbed, and then discharged by the heat dissipation fan 11 from the ventilation slot on the ventilation plate 10 on the upper panel 8, forming a directional heat dissipation flow channel. The ventilation plate 10 is connected with the machine body through the sliding connection of the sliding groove three 29 and the plug block 27 on the left and right sides, and the plug block 27 is inserted into the slot 26 on both sides of the slot 20, so as to realize the fixation of the ventilation plate 10 and the machine body. The spring 22 is installed in the circular groove 21 at the end of the sliding groove three 29, which provides elastic thrust to make the plug block 27 always close to the slot 26, so as to ensure the stable fixation of the ventilation plate 10. When disassembly is needed, the sliding block 25 is slid in the sliding groove two 24, which drives the connecting plate 28 to move along the sliding groove one 23, compresses the spring 22 and drives the plug block 27 to separate from the slot 26, so as to realize the quick disassembly of the ventilation plate 10 and the slot 20. The user can conveniently clean the dust on the ventilation slot 19 and the dust screen 15, so as to ensure the long-term stability of the heat dissipation efficiency.

[0045] The heat conduction plate 16 is close to the high heat generating components such as power amplifier module on the circuit board 12, which quickly conducts the heat to the internal liquid cooling tank. The micro liquid cooling pump 18 is connected with the liquid cooling tank through the pipeline, which drives the cooling liquid to circulate. After the cooling liquid absorbs the heat in the liquid cooling tank, it is pumped into the heat dissipation pipe 17 by the micro liquid cooling pump 18. The heat is released through the heat dissipation pipe 17 and air convection. The cooled liquid returns to the liquid cooling tank, forming a closed loop circulation. Through the cooperation of liquid cooling and air cooling, the heat dissipation efficiency is significantly improved, which avoids the performance decline or damage caused by local high temperature. The supporting block 30 is fixed on the bottom side of the lower panel 9. The elastic pad one 31 at the bottom side buffers slight vibration, which is suitable for indoor placement. The elastic pad two 33 at the bottom of the rotating plate 32 contacts the ground after it is unfolded through the hinge structure, which provides higher support height and is suitable for outdoor use. Before unfolding, the iron sheet 34 is adsorbed and fixed with the magnetic sheet 35 on the bottom side of the lower panel 9, which avoids the loosening of the rotating plate 32 and ensures the horizontal operation of the equipment in complex environment.

[0046] It should be noted that in this text, relational terms such as first and second are used only to distinguish one entity or action from another, and do not necessarily require or imply any such actual relationship or order between these entities or actions. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0047] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A power amplifier structure comprising a chassis mid-frame (1), characterized in that: The top and bottom of the body middle frame (1) are respectively fixedly installed with an upper panel (8) and a lower panel (9), the left and right sides of the upper panel (8) and the lower panel (9) are provided with clamping grooves (20), the clamping grooves (20) are provided with ventilation plates (10), a plurality of ventilation grooves (19) are provided on the ventilation plates (10), and the side of the ventilation plate (10) close to the circuit board (12) is threadedly sleeved with a dustproof net (15); the ventilation plate (10) and the clamping groove (20) are provided with a quick release assembly; the left and right sides of the inside of the body middle frame (1) are provided with heat dissipation fans (11); the rear side of the inside of the body middle frame (1) is provided with a circuit board (12); the circuit board (12) is provided with a temperature sensor (13); and the left and right sides of the circuit board (12) are provided with heat conduction assemblies; and the bottom of the lower panel (9) is provided with support assemblies at four corners.

2. The power amplifier architecture of claim 1, wherein: The quick release assembly comprises a spring (22), the left and right sides of the ventilation plate (10) are provided with sliding grooves (29), the sliding grooves (29) are slidably connected with plug blocks (27), the left and right sides of the clamping groove (20) are provided with plug grooves (26), the plug blocks (27) are inserted into the plug grooves (26), the side, away from the plug grooves (26), of the sliding grooves (29) is provided with a circular groove (21), the spring (22) is arranged in the circular groove (21), the top of the sliding groove (29) is provided with a sliding groove (23), the top of the sliding groove (23) is provided with a sliding groove (24), the top side of the plug block (27) is fixedly connected with a connecting plate (28), the connecting plate (28) is slidably connected with the sliding groove (23), the top side of the connecting plate (28) is fixedly connected with a sliding block (25), and the sliding block (25) is slidably connected with the sliding groove (24).

3. The power amplifier architecture of claim 1, wherein: The heat conduction assembly comprises a heat conduction plate (16) and a micro liquid cooling pump (18), the heat conduction plate (16) and the micro liquid cooling pump (18) are arranged on the circuit board (12), the inside of the heat conduction plate (16) is provided with a liquid cooling groove, the input end of the micro liquid cooling pump (18) is fixedly communicated with the liquid cooling groove through a pipeline, the output end of the micro liquid cooling pump (18) is fixedly communicated with a heat dissipation pipe (17), and the output end of the heat dissipation pipe (17) is fixedly communicated with the liquid cooling groove.

4. The power amplifier architecture of claim 1, wherein: The support assembly comprises a support block (30), the support block (30) is fixedly connected to the bottom side of the lower panel (9), one side of the lower panel (9) is provided with a rotating plate (32), the rotating plate (32) is hingedly connected to the bottom side of the lower panel (9), and the side, close to the support block (30), of the rotating plate (32) abuts against the outer surface of the support block (30).

5. The power amplifier structure of claim 4, wherein: The bottom side of the support block (30) is fixedly connected with an elastic pad (31), and the bottom side of the rotating plate (32) is fixedly connected with an elastic pad (33).

6. The power amplifier architecture of claim 4, wherein: The side, away from the support block (30), of the rotating plate (32) is fixedly connected with an iron sheet (34), and the bottom side of the lower panel (9) is fixedly connected with a magnetic sheet (35).

7. The power amplifier architecture of claim 1, wherein: The front right side of the machine body middle frame (1) is provided with a placing groove (2), the inside of the placing groove (2) is fixedly connected with a fixed rod (3) between the upper and lower sides, and the fixed rod (3) is wound with a hand strap (4).

8. The power amplifier architecture of claim 1, wherein: The front side of the machine body middle frame (1) is provided with a display screen (5) and a volume adjusting knob (6).

9. The power amplifier architecture of claim 1, wherein: The rear side of the machine body middle frame (1) is provided with a plurality of interfaces (7).

10. The power amplifier architecture of claim 1, wherein: The inside of the front side of the machine body middle frame (1) is provided with a battery (14).

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