An equalizer capable of improving heat dissipation effect

Abstract

The present invention provides an equalizer capable of improving heat dissipation effects, and relates to the technical field of electroacoustic equipment, comprising: an equalizer housing; an inner concave structure is provided between the two diaphragms of the equalizer housing, an acoustic resonance cavity is arranged in the inner concave portion through a support frame, and there are at least three vertically coaxial acoustic resonance cavities in a stepped manner, and the acoustic resonance cavities increase in size from top to bottom; a sound-moving rod is provided vertically slidingly at the coaxial portions of the multiple layers of the acoustic resonance cavities, a resonance disk is provided at the upper end of the acoustic resonance cavity, and a resonance frame is provided at the lower end of the acoustic resonance cavity, and the sound-moving rod, the resonance disk, and the resonance frame are interlocked through sound pressure vibration to form an acoustic resonance mechanism. Through the design of the acoustic resonance cavity, a significant improvement in passive heat dissipation is achieved, and the acoustic resonance cavity is arranged in a vertically coaxial stepped manner, gradually increasing from top to bottom, and can adapt to sound pressure energy of different frequencies.

Description

Technical Field

[0001] The present invention relates to the technical field of electroacoustic equipment, and in particular to an equalizer capable of improving heat dissipation effect. Background Art

[0002] In the field of audio equipment, with the continuous advancement of technology and users' increasing demand for sound quality, optimizing equalizer performance has become a key research direction. As a core component in audio systems, the heat dissipation of the equalizer directly affects the stability and service life of the device. However, traditional equalizer heat dissipation designs often suffer from inefficient heat dissipation and poor heat conduction. This causes the equalizer's internal temperature to rise rapidly under high power operation, which not only affects sound quality but can also cause equipment failure.

[0003] Traditional cooling methods rely primarily on natural convection and heat sinks, but these methods are inadequate for high-power audio equipment. Natural convection has limited cooling efficiency and cannot meet the cooling requirements of equalizers under high loads. While heat sinks can increase the heat dissipation area, they are often unsatisfactory due to the limited internal space of the equalizer. Furthermore, fan cooling can introduce mechanical vibration noise, interfering with the audio signal. Summary of the Invention

[0004] The present invention relates to an equalizer capable of improving heat dissipation. This invention aims to address the problems of low heat dissipation efficiency and poor heat conduction in traditional equalizers through an innovative acoustic resonance cavity design, the integration of an active cooling system, rapid heat conduction, and a low-noise design, thereby providing a high-performance, highly stable equalizer solution for the audio equipment field.

[0005] The present invention provides an equalizer capable of improving heat dissipation effect, specifically comprising: an equalizer housing; an inner concave structure is set between the two diaphragms of the equalizer housing, and an acoustic resonance cavity is arranged in the inner concave through a support frame, and the acoustic resonance cavity is vertically coaxial and stepped, and there are at least three acoustic resonance cavities, and the acoustic resonance cavities increase in size from top to bottom; a sound-moving rod is vertically slidably provided at the coaxial parts of the multiple layers of the acoustic resonance cavity, a resonance disk is provided at the upper end of the acoustic resonance cavity, and a resonance frame is provided at the lower end of the acoustic resonance cavity, and the sound-moving rod, the resonance disk and the resonance frame are interlocked by sound pressure vibration to form an acoustic resonance mechanism; a heat dissipation air pipe is provided in the equalizer housing, and a support is provided between the heat dissipation air pipe and the acoustic resonance cavity of each layer. The pipes are connected, and the outlet of the heat dissipation pipe extends downward to the resonance frame; a heat conduction plate is vertically supported in the equalizer shell cavity on the inner side of the heat dissipation pipe, and a graphene composite layer is attached to one end of the heat conduction plate away from the heat dissipation pipe, and the other end of the graphene composite layer extends to the bottom of the circuit board in the equalizer; a serpentine cooling coil is provided in the interlayer between the heat dissipation pipe and the heat conduction plate, the upper end of the cooling coil is a coolant return pipe, and the lower end of the cooling coil is a coolant inlet pipe, and a circulating piston cylinder connected to the cooling coil inlet and outlet pipes is hung on one side of the resonance frame, the coolant return pipe of the cooling coil is spirally coiled on the cooling air duct, and the cooling air ducts are fixed side by side on one side of the acoustic resonance cavity.

[0006] Optionally, adjacent acoustic resonance cavities are connected through neck tubes that are wide at the top and narrow at the bottom, the upper end edge of the topmost neck tube is an outward-turned structure, the sonic rod is located in the middle of each neck tube, and the resonance disk is located at the topmost neck tube.

[0007] Optionally, a supporting block is horizontally fixed at the position corresponding to the sonic rod in the inner cavity of the acoustic resonance cavity on each side, and the sonic rod slides vertically in the supporting block. A leather cup that is narrow at the top and wide at the bottom is also fixed at the upper position of the sonic rod in the acoustic resonance cavity of each layer. The leather cup moves up and down with the sonic rod to drive the air flow downward, and a sound transmission bone bar is provided at the position corresponding to each branch pipe on the supporting block, and the sound transmission bone bar extends to the deep part of the inner cavity of the branch pipe.

[0008] Optionally, the upper end of the resonance disk is arc-shaped, and sound-absorbing convex columns are evenly spaced on the bottom surface of the resonance disk. A guide cone that is wide at the top and narrow at the bottom is fixed at the connection between the bottom of the resonance disk and the sound-moving rod, and fins are distributed in an annular manner on the guide cone to guide the airflow and sound downward.

[0009] Optionally, a rectangular strip-shaped connecting rod with an anti-rotation effect is vertically slidably installed in the resonance frame, the upper end of the connecting rod is fixedly connected to the lower end of the sound-moving rod, a baffle is fixedly provided on the upper end of the connecting rod, a spring is provided on the connecting rod between the baffle and the resonance frame, a counterweight is fixedly provided on the lower end of the connecting rod, and the counterweight is connected to the eccentric wheel through a rotating shaft along the direction of the heat dissipation air pipe outlet, the eccentric wheel is symmetrically provided with two points located at both ends of the rotating shaft, and a fan wheel is also provided on the rotating shaft near the eccentric wheel, and the fan wheel rotates with the eccentric wheel to accelerate the air at the heat dissipation air pipe outlet to draw it out.

[0010] Optionally, the upper end of the heat dissipation air pipe is a closed end, and the connection between the branch pipe and the heat dissipation air pipe is a downward folded inclined structure for guiding the airflow downward.

[0011] Optionally, the heat conducting plate is made of porous aluminum alloy, and heat dissipation holes with honeycomb pores are formed by laser 3D printing.

[0012] Optionally, heat pipes distributed side by side are provided in the graphene composite layer, and the heat pipes are filled with a phase change working medium.

[0013] Optionally, a one-way valve is provided in the inlet and outlet pipes connecting the cooling coil and the circulating piston cylinder. The end of the piston rod of the cooling coil is vertically connected to an extension plate, which passes through the resonance frame and is fixedly connected to the baffle. The baffle drives the extension plate to move up and down during the reciprocating movement of the baffle, and the piston rod of the circulating piston cylinder moves back and forth to transport the coolant to circulate in the cooling coil.

[0014] Optionally, the upper end of the cooling air duct is a shuttle-shaped variable-diameter sound vibration cavity, and the cooling air duct is vertically filled with a wavy guide baffle. The wavy structure is used to use sound vibration to disturb the airflow to form turbulence and break the laminar boundary layer. The wall of the cooling air duct is provided with evenly spaced air outlet holes, and the air outlet holes overflow the air flow to the coiled coolant return pipe.

[0015] The present invention provides an equalizer capable of improving heat dissipation effect, which has the following beneficial effects:

[0016] First, the acoustic resonance cavity design achieves a significant improvement in passive heat dissipation. The acoustic resonance cavity adopts a vertical coaxial stepped arrangement, gradually increasing from top to bottom, and can adapt to the sound pressure energy of different frequencies. This design not only effectively utilizes the sound pressure energy to drive the airflow to form a passive heat dissipation cycle, but also enhances the heat dissipation efficiency through the coordinated work of multiple layers of acoustic resonance cavity. At the same time, the interlocking mechanism of the sound dynamic rod, resonance plate and resonance frame further enhances the heat dissipation effect and forms a stable airflow cycle.

[0017] Secondly, combined with an active cooling system, the present invention achieves further optimization of the heat dissipation effect. The heat dissipation air duct is connected to the acoustic resonance cavity, which extracts heat from the acoustic resonance cavity and further dissipates heat through the cooling coil and the cooling air duct. The coolant in the cooling coil circulates under the drive of the circulating piston cylinder, effectively absorbing heat. At the same time, the guide baffle in the cooling air duct forms turbulence through sound and vibration disturbances, breaking the laminar boundary layer of the airflow and further improving the heat dissipation efficiency. This combination of active and passive heat dissipation methods has made the equalizer achieve a significant breakthrough in heat dissipation performance.

[0018] Furthermore, the present invention achieves rapid heat conduction through the design of a graphene composite layer and a porous aluminum alloy heat conducting plate. The heat pipes in the graphene composite layer are filled with a phase change medium, which can quickly transfer heat from the circuit board to the heat dissipation air pipes. The porous aluminum alloy heat conducting plate increases the heat dissipation surface area and improves thermal conductivity. These designs enable the equalizer to more effectively utilize heat conduction mechanisms during the heat dissipation process, further improving the heat dissipation effect.

[0019] Finally, the equalizer of this invention improves heat dissipation while maintaining low noise levels. The baffles in the cooling duct not only enhance heat dissipation but also absorb airflow noise, ensuring the purity of the audio signal. This gives the equalizer a significant advantage in ensuring long-term stable operation of high-power audio equipment.

[0020] In summary, the present invention achieves a significant improvement in the heat dissipation effect of the equalizer through an innovative acoustic resonance cavity design, the combination of an active cooling system, rapid heat conduction, and a low noise level design. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments are briefly introduced below.

[0022] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0023] In the attached figure:

[0024] Figure 1 A schematic diagram of the first axial structure of the acoustic resonance cavity of the present invention mounted on the equalizer housing is shown;

[0025] Figure 2 A schematic diagram showing the structure of the acoustic resonance cavity of the present invention installed on the equalizer housing from a second axis;

[0026] Figure 3 The figure shows the upper axial structural diagram of the acoustic resonance cavity, resonance frame and heat dissipation air pipe of the present invention;

[0027] Figure 4 The figure shows a schematic diagram of the axial structure of the graphene composite layer and the cooling air duct of the present invention;

[0028] Figure 5 The present invention shows Figure 4 A in the middle is a schematic diagram of the structure of the enlarged part;

[0029] Figure 6 The figure shows the lower axial structural diagram of the acoustic resonance cavity, resonance frame and heat dissipation air pipe of the present invention;

[0030] Figure 7 The present invention shows Figure 6 Middle B is a schematic diagram of the structure of the enlarged part;

[0031] Figure 8 The figure shows the axial structural diagram of the acoustic resonance cavity of the present invention in a half-cut and separated state;

[0032] Figure 9 It shows a schematic diagram of the axial structure of the sonic rod, resonance disk, resonance frame and cooling coil of the present invention;

[0033] Figure 10 A schematic diagram of the axial structure of the cooling air duct portion of the present invention is shown.

[0034] Reference Signs List

[0035] 1. Equalizer housing; 2. Acoustic resonance chamber; 201. Neck tube; 3. Sound vibration rod; 301. Support block; 302. Leather cup; 303. Sound transmission bone strip; 4. Resonance disk; 401. Boss; 402. Guide cone; 5. Resonance frame; 501. Connecting rod; 502. Baffle; 5021. Extension plate; 503. Spring; 504. Counterweight; 505. Eccentric wheel; 506. Fan wheel; 6. Heat dissipation duct; 601. Branch pipe; 7. Heat conduction plate; 701. Heat dissipation hole; 8. Graphene composite layer; 801. Heat pipe; 9. Cooling coil; 901. Circulating piston cylinder; 902. Cooling air duct; 9021. Air outlet; 9022. Sound vibration chamber; 9023. Diversion baffle. DETAILED DESCRIPTION

[0036] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] Example 1: Please refer to Figures 1-8The present invention proposes an equalizer capable of improving heat dissipation, comprising: an equalizer housing 1; an inner concave structure is provided between the two diaphragms of the equalizer housing 1; an acoustic resonance cavity 2 is supported and mounted in the inner concave structure; the acoustic resonance cavity 2 is vertically coaxial and has at least three stepped cavities, and the acoustic resonance cavity 2 increases in size from top to bottom. By arranging the multiple layers of acoustic resonance cavity 2 in a stepped manner, the sound pressure energy can be effectively utilized to drive the airflow, thereby achieving passive heat dissipation. The size of each layer of acoustic resonance cavity 2 gradually increases from top to bottom, which can adapt to sound pressure vibrations of different frequencies and improve heat dissipation. Efficiency; a sound-moving rod 3 is provided at the coaxial part of the multi-layer acoustic resonance cavity 2 for vertical sliding, a resonance disk 4 is provided at the upper end of the acoustic resonance cavity 2, and a resonance frame 5 is provided at the lower end of the acoustic resonance cavity 2. The sound-moving rod 3, the resonance disk 4 and the resonance frame 5 are interlocked through sound pressure vibration to form an acoustic resonance mechanism, which drives the sound-moving rod 3 to move up and down through the sound pressure vibration, driving the resonance disk 4 and the resonance frame 5 to work together to form an air flow circulation and enhance the heat dissipation effect; a heat dissipation air pipe 6 is provided in the equalizer housing 1, and the heat dissipation air pipe 6 is connected to the acoustic resonance cavity 2 of each layer through a branch pipe 601, and the heat dissipation air pipe 6 The outlet extends downward to the resonance frame 5, and the heat dissipation air pipe 6 is connected to each layer of the acoustic resonance cavity 2 through the branch pipe 601, which can conduct heat from the acoustic resonance cavity 2 and further dissipate heat through the cooling coil 9 and the cooling air duct 902; a heat conducting plate 7 is vertically supported in the cavity of the equalizer housing 1 inside the heat dissipation air pipe 6, and a graphene composite layer 8 is attached to one end of the heat conducting plate 7 away from the heat dissipation air pipe 6, and the other end of the graphene composite layer 8 extends to the bottom of the circuit board in the equalizer. The heat conducting plate 7 quickly conducts the heat of the circuit board to the heat dissipation air pipe 6 through the graphene composite layer 8. Improve the overall heat dissipation efficiency; a serpentine-shaped cooling coil 9 is provided in the interlayer between the heat dissipation air pipe 6 and the heat conduction plate 7. The upper end of the cooling coil 9 is a coolant return pipe, and the lower end of the cooling coil 9 is a coolant inlet pipe. A circulating piston cylinder 901 connected to the inlet and outlet pipes of the cooling coil 9 is hung on one side of the resonance frame 5. The coolant is driven to circulate in the cooling coil 9 through the circulating piston cylinder 901, further enhancing the heat dissipation effect. The coolant return pipe of the cooling coil 9 is spirally coiled on the cooling air duct 902, and the cooling air duct 902 is fixed side by side on one side of the acoustic resonance cavity 2.

[0038] Among them, adjacent acoustic resonance cavities 2 are connected through a neck tube 201 that is wide at the top and narrow at the bottom, which can effectively guide the airflow from the upper acoustic resonance cavity 2 to the lower acoustic resonance cavity 2, thereby improving the airflow circulation efficiency. The upper end edge of the uppermost neck tube 201 is an outward-turned structure, which can smoothly guide the airflow to enter. The sonic rod 3 is located in the middle of each neck tube 201, and the resonance disk 4 is located at the uppermost neck tube 201.

[0039] Among them, a supporting block 301 is fixed horizontally at the position corresponding to the sonic rod 3 in the inner cavity of the acoustic resonance cavity 2 on each side. The sonic rod 3 slides vertically in the supporting block 301 to ensure that the sonic rod 3 slides stably in the acoustic resonance cavity 2 to avoid displacement due to vibration. A leather cup 302 with a narrow top and a wide bottom is also fixed at the upper position of the sonic rod 3 in the acoustic resonance cavity 2 of each layer. The leather cup 302 moves up and down with the sonic rod 3, driving the airflow downward, which can effectively capture the sound pressure vibration energy, drive the airflow downward, and enhance the heat dissipation effect. A sound transmission bone strip 303 is provided at the position corresponding to each branch pipe 601 on the supporting block 301. The sound transmission bone strip 303 extends to the deep part of the inner cavity of the branch pipe 601, and transmits the sound pressure vibration energy to the branch pipe 601, further improving the airflow circulation efficiency.

[0040] Among them, the upper end of the resonance disk 4 is arc-shaped, which can effectively focus the sound pressure vibration energy and enhance the resonance effect. The bottom surface of the resonance disk 4 is evenly spaced with sound-absorbing convex columns 401 to reduce the sound wave reflection on the surface of the resonance disk 4 and avoid noise interference. A guide cone 402 that is wide at the top and narrow at the bottom is fixedly provided at the connection between the bottom of the resonance disk 4 and the sonic rod 3. The guide cone 402 is annularly distributed with fins that guide the airflow and sound downward, which can guide the airflow and sound waves to move downward and enhance the heat dissipation effect.

[0041] Among them, a rectangular parallelepiped strip connecting rod 501 with an anti-rotation effect is vertically slidably installed in the resonance frame 5 to ensure the linkage stability of the sound-moving rod 3 and the resonance frame 5 to avoid deviation due to vibration. The upper end of the connecting rod 501 is fixedly connected to the lower end of the sound-moving rod 3, and a baffle 502 is fixedly provided on the upper end of the connecting rod 501. A spring 503 is provided on the connecting rod 501 between the baffle 502 and the resonance frame 5 to provide a reset force to ensure that the sound-moving rod 3 can be quickly reset after the sound pressure vibration ends. The lower end of the connecting rod 501 A counterweight 504 is fixed at one end, and the counterweight 504 is connected to an eccentric wheel 505 by rotating along the outlet direction of the heat dissipation air pipe 6 through a rotating shaft. The eccentric wheel 505 is symmetrically provided with two wheels respectively disposed at both ends of the rotating shaft. A fan wheel 506 is also provided on the rotating shaft near the eccentric wheel 505. The fan wheel 506 rotates with the eccentric wheel 505 to accelerate the air at the outlet of the heat dissipation air pipe 6 and draw it outwards. The eccentric wheel 505 is driven to rotate by the vibration of the counterweight 504, and the fan wheel 506 is driven to accelerate the airflow outwards, thereby further improving the heat dissipation effect.

[0042] Among them, the upper end of the heat dissipation air pipe 6 is a closed end to prevent the airflow from flowing back and ensure the one-way flow of the airflow. The connection between the branch pipe 601 and the heat dissipation air pipe 6 is a downward folded inclined structure to facilitate guiding the airflow downward, which can effectively guide the airflow to flow downward and enhance the heat dissipation effect.

[0043] Among them, the heat conducting plate 7 is made of porous aluminum alloy to increase the heat dissipation surface area and improve the heat conduction efficiency. The heat dissipation holes 701 with honeycomb pores are formed by laser 3D printing to ensure the accuracy and consistency of the heat dissipation holes 701 and improve the heat dissipation performance.

[0044] The graphene composite layer 8 is provided with heat pipes 801 arranged side by side. The heat pipes 801 are filled with a phase-change working fluid. The phase-change working fluid uses an organic working fluid: such as R23, R134a, R410a, R407c and other environmentally friendly refrigerants. Through the rapid thermal conductivity of the phase-change working fluid, the heat of the circuit board is quickly transferred to the heat dissipation air pipe 6, thereby improving the heat dissipation efficiency.

[0045] Example 2: Based on Example 1, refer to Figure 9 and Figure 10 , a one-way valve is provided in the inlet and outlet pipes connecting the cooling coil 9 and the circulating piston cylinder 901 to ensure that the coolant flows in one direction in the cooling coil 9 to avoid backflow. The end of the piston rod of the cooling coil 9 is vertically connected to an extension plate 5021, and the extension plate 5021 passes through the resonance frame 5 and is fixedly connected to the baffle 502. The baffle 502 drives the extension plate 5021 to move up and down during the reciprocating movement of the baffle 502. The piston rod of the circulating piston cylinder 901 reciprocates to transport the coolant to circulate in the cooling coil 9. The up and down movement of the baffle 502 drives the circulating piston cylinder 901 to work, thereby realizing automatic circulation of the coolant and further improving the heat dissipation effect.

[0046] Among them, the upper end of the cooling air duct 902 is a shuttle-shaped variable-diameter sound vibration cavity 9022, which can adapt to sound pressure vibrations of different frequencies and improve heat dissipation efficiency. The cooling air duct 902 is vertically filled with a wavy guide baffle 9023. The wavy structure is used to use sound vibration to disturb the airflow to form turbulence, break the laminar boundary layer, enhance the heat dissipation effect through turbulence, and absorb airflow noise at the same time. The cooling air duct 902 is provided with evenly spaced air outlet holes 9021 on the pipe wall. The air outlet holes 9021 overflow the air flow to the coiled coolant return pipe, evenly distributing the cooling airflow to the coolant return pipe, further improving the heat dissipation effect.

[0047] Working principle of this embodiment: When the equalizer is working, the sound pressure vibration generated by its diaphragm is transmitted to the acoustic resonance cavity 2 through the concave structure ( Figure 1-Figure 3 The acoustic resonance cavity 2 adopts a vertical coaxial stepped design (at least three layers, increasing from top to bottom), which can adapt to the sound pressure energy of different frequencies and transmit the vibration to the resonance disk 4 and the resonance frame 5 through the sound moving rod 3 (sliding vertically in the support block 301). The arc structure (upper end) of the resonance disk 4 and the convex column 401 ( Figure 6 and Figure 9 ) focuses the sound pressure energy and reduces the reflected noise, while the fins of the guide cone 402 guide the airflow and sound waves downward. The up and down movement of the sound rod 3 drives the leather cup 302 (narrow at the top and wide at the bottom) to compress the airflow, so that the airflow flows downward layer by layer through the neck tube 201 (wide at the top and narrow at the bottom), forming a passive heat dissipation cycle ( Figure 9 ).

[0048] Heat is transferred from the circuit board to the graphene composite layer 8 (including heat pipes 801, filled with phase change fluid such as R134a), and is quickly conducted to the heat dissipation pipe 6 through the heat conduction plate 7 (porous aluminum alloy, honeycomb heat dissipation holes 701). The heat dissipation pipe 6 is connected to each layer of the acoustic resonance cavity 2 through the branch pipe 601, and the hot air flow is directed to the outlet at the resonance frame 5. In this process, the cooling coil 9 (distributed in a snaking manner, sandwiched between the heat dissipation pipe 6 and the heat conduction plate 7) drives the coolant circulation through the circulating piston cylinder 901 to further absorb heat. The circulating piston cylinder 901 is linked to the baffle 502 by the extension plate 5021 (reset by the spring 503), realizing the automatic delivery of the coolant ( Figure 9-10 ).

[0049] At the outlet of the heat dissipation pipe 6, the vibration of the counterweight 504 drives the eccentric wheel 505 to rotate, driving the fan wheel 506 to accelerate the exhaust of hot air ( Figure 7 and Figure 8 At the same time, the cooling duct 902's spindle-shaped variable-diameter acoustic-vibration cavity 9022 (upper end) and the wavy guide baffle 9023 (vertical filler) create turbulent flow through acoustic-vibration disturbances, breaking up the laminar boundary layer and improving heat dissipation efficiency. The air outlet holes 9021 in the cooling duct 902's wall evenly direct the cooling airflow toward the coiled coolant return pipe, achieving rapid cooling.

[0050] In Example 2, the inlet and outlet pipes of the cooling coil 9 are equipped with one-way valves to ensure unidirectional coolant flow and prevent backflow. The linked design of the circulating piston cylinder 901 and the baffle 502 further optimizes coolant circulation efficiency. The guide baffle 9023 of the cooling air duct 902 enhances heat dissipation through turbulence while absorbing noise, ensuring a pure audio signal. Through this structure, the equalizer significantly reduces circuit board temperature (chip temperature is reduced by 33% under a 50W load) through the synergistic effect of passive acoustic heat dissipation and active cooling systems, while maintaining a low noise level (≤25dB(A)), making it suitable for long-term stable operation of high-power audio equipment.

[0051] In this article, there are several points to note:

[0052] 1. The drawings of the embodiments of the present invention only relate to the structures related to the embodiments of the present invention. Other structures may refer to conventional designs.

[0053] 2. In the absence of conflict, the embodiments of the present invention and the features therein may be combined with each other to form new embodiments.

[0054] The above are only specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field can easily think of changes or replacements within the technical scope disclosed by the present invention, which should be covered by the scope of protection of the present invention.

Claims

1. An equalizer capable of improving heat dissipation, comprising: An equalizer housing (1); a concave structure is provided between two diaphragms of the equalizer housing (1); an acoustic resonance cavity (2) is arranged in the concave portion through a support frame, and is characterized in that the acoustic resonance cavity (2) is vertically coaxial and has at least three stepped portions, and the acoustic resonance cavity (2) increases in size from top to bottom; a sound-moving rod (3) is vertically slidably provided at the coaxial portion of the multiple layers of the acoustic resonance cavity (2), a resonance disk (4) is provided at the upper end of the acoustic resonance cavity (2), and a resonance frame (5) is provided at the lower end of the acoustic resonance cavity (2); the sound-moving rod (3), the resonance disk (4) and the resonance frame (5) are interlocked by sound pressure vibration to form an acoustic resonance mechanism; the equalizer housing (1) is provided with a heat dissipation pipe (6), the heat dissipation pipe (6) is connected to the acoustic resonance cavity (2) of each layer through a branch pipe (601), and the outlet of the heat dissipation pipe (6) extends downward to the resonance frame (5); a heat conduction plate (7) is vertically supported in the cavity of the equalizer housing (1) inside the heat dissipation pipe (6), and a graphene composite layer (8) is attached to one end of the heat conduction plate (7) away from the heat dissipation pipe (6), and the other end of the graphene composite layer (8) extends to the bottom of the circuit board in the equalizer; a serpentine cooling coil (9) is provided in the interlayer between the heat dissipation pipe (6) and the heat conduction plate (7), and the upper end of the cooling coil (9) is The cooling liquid return pipe, the lower end of the cooling coil (9) is the cooling liquid inlet pipe, and a circulating piston cylinder (901) connected to the inlet and outlet pipes of the cooling coil (9) is hung on one side of the resonance frame (5). The cooling liquid return pipe of the cooling coil (9) is spirally coiled on the cooling air duct (902), and the cooling air duct (902) is fixed side by side on one side of the acoustic resonance cavity (2). A support block (301) is fixed horizontally at the position corresponding to the location of the sound-moving rod (3) in the inner cavity of the acoustic resonance cavity (2) on each side. The sound-moving rod (3) slides vertically in the support block (301). The sound-moving rod (3) is also fixed at the upper position in the acoustic resonance cavity (2) of each layer. A leather cup (302) having a narrow top and a wide bottom is fixedly provided, and the leather cup (302) moves up and down with the sound-moving rod (3) to drive the airflow downward, and a sound-transmitting bone bar (303) is respectively provided at a position corresponding to each branch pipe (601) on the support block (301), and the sound-transmitting bone bar (303) extends to the deep inside of the inner cavity of the branch pipe (601), and the upper end of the resonance disk (4) is arc-shaped, and the bottom surface of the resonance disk (4) is evenly spaced with sound-absorbing convex columns (401), and a guide cone (402) having a wide top and a narrow bottom is fixedly provided at the bottom of the resonance disk (4) where it is connected to the sound-moving rod (3), and fins for guiding the airflow and sound downward are distributed in an annular manner on the guide cone (402).

2. The equalizer capable of improving heat dissipation effect according to claim 1, characterized in that: Adjacent acoustic resonance cavities (2) are connected via neck tubes (201) that are wide at the top and narrow at the bottom. The upper end edge of the neck tube (201) at the top layer is an outward-turned structure. The sound-moving rod (3) is located in the middle of each neck tube (201), and the resonance disk (4) is located at the neck tube (201) at the top layer.

3. The equalizer capable of improving heat dissipation effect according to claim 1, characterized in that: A rectangular parallelepiped strip connecting rod (501) with an anti-rotation function is vertically slidably installed in the resonance frame (5), the upper end of the connecting rod (501) is fixedly connected to the lower end of the sound-moving rod (3), a baffle (502) is fixedly provided on the upper end of the connecting rod (501), a spring (503) is provided on the connecting rod (501) between the baffle (502) and the resonance frame (5), a counterweight (504) is fixedly provided on the lower end of the connecting rod (501), and the counterweight (504) is connected to the eccentric wheel (505) through a rotating shaft along the outlet direction of the heat dissipation air pipe (6), the eccentric wheel (505) is symmetrically provided with two wheels respectively disposed at both ends of the rotating shaft, and a fan wheel (506) is further provided on the rotating shaft near the eccentric wheel (505), and the fan wheel (506) rotates with the eccentric wheel (505) to accelerate the air at the outlet of the heat dissipation air pipe (6) and draw it outward.

4. The equalizer capable of improving heat dissipation effect according to claim 1, characterized in that: The upper end of the heat dissipation air pipe (6) is a closed end, and the connection between the branch pipe (601) and the heat dissipation air pipe (6) is a downward folded inclined structure that facilitates guiding the airflow downward.

5. The equalizer capable of improving heat dissipation effect according to claim 1, characterized in that: The heat conducting plate (7) is made of porous aluminum alloy, and has heat dissipation holes (701) with honeycomb pores formed by laser 3D printing.

6. The equalizer capable of improving heat dissipation effect according to claim 1, characterized in that: Heat pipes (801) distributed side by side are provided in the graphene composite layer (8), and the heat pipes (801) are filled with a phase-change working medium.

7. The equalizer capable of improving heat dissipation effect according to claim 5, characterized in that: One-way valves are provided in the inlet and outlet pipes connecting the cooling coil (9) and the circulating piston cylinder (901). The end of the piston rod of the cooling coil (9) is vertically connected to an extension plate (5021). The extension plate (5021) passes through the resonance frame (5) and is fixedly connected to the baffle (502). When the baffle (502) moves up and down, it drives the extension plate (5021) to move up and down. The piston rod of the circulating piston cylinder (901) moves back and forth to transport the coolant to circulate in the cooling coil (9).

8. The equalizer capable of improving heat dissipation effect according to claim 1, characterized in that: The upper end of the cooling air duct (902) is a shuttle-shaped variable-diameter sound vibration cavity (9022), and the cooling air duct (902) is vertically filled with a wavy guide baffle (9023). The wavy structure is used to use the sound vibration to disturb the air flow to form turbulence and break the laminar boundary layer. The cooling air duct (902) is provided with evenly spaced air outlet holes (9021) on the pipe wall, and the air outlet holes (9021) overflow the air flow to the coiled coolant return pipe.

Images