Device capable of directionally propagating acoustics

Abstract

The utility model provides a device capable of directionally propagating acoustics, which comprises a support table and a protective shell, an air supply component is fixedly connected above the support table, a circuit board is fixedly connected inside the protective shell, a plurality of transducers are fixedly connected on the front surface of the circuit board, heat-conducting silica gel is fixedly connected on one side of the plurality of transducers which are longitudinally arranged, and the heat-conducting silica gel is fixedly connected on the other side of the plurality of transducers. The outer side of the heat conduction silica gel is fixedly connected with a front side heat dissipation plate, one side of the protection shell is fixedly connected with a plurality of semiconductor chilling plates, the rear side of the circuit board is fixedly connected with a plurality of rear side heat dissipation plates, and the other ends of the rear side heat dissipation plates are fixedly connected to the semiconductor chilling plates. Air flow is led in from the lower portion through the air supply assembly, and heat generated by the transducer is actively taken away by combining the wedge-shaped front side heat dissipation plate and the heat conduction silica gel. And meanwhile, a semiconductor chilling plate and a rear side heat dissipation plate are used for conducting auxiliary cooling on the circuit board, the equipment operation temperature is effectively reduced, noise and vibration of the air pump are restrained through a sound insulation box, and dust accumulation is prevented from affecting the heat dissipation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of directional acoustic equipment technology, and in particular to a device capable of directional acoustic propagation. Background Technology

[0002] Directional acoustic devices are innovative acoustic instruments that utilize directional sound technology to achieve directional sound propagation. Their core principle is to control the propagation path of sound waves, concentrating the sound within a specific area, rather than allowing the sound to diffuse 360 ​​degrees like a traditional loudspeaker. This technology is primarily based on the highly directive characteristics of ultrasound. Audible sound waves are modulated onto an ultrasonic carrier wave, and by utilizing the nonlinear acoustic effects of air, the ultrasound waves undergo self-demodulation during propagation, generating a difference-frequency sound wave that matches the original audible sound frequency, thus forming a directional sound beam similar to a "searchlight beam." This sound beam propagates clearly only within a certain angle (e.g., 30 degrees) directly in front of the sound source; beyond this range, the volume decreases significantly.

[0003] A search revealed a Chinese patent publication number CN211791900U, which discloses a directional speaker, including a directional speaker body, with a heat dissipation system and a direction adjustment system externally disposed thereon.

[0004] In view of the problem that the main heat source of the directional acoustic device in the above-mentioned technology is the ultrasonic transducer, but it lacks the function of directly dissipating heat from the transducer and cannot effectively dissipate heat; therefore, a device that can propagate directional acoustics is proposed. Utility Model Content

[0005] In view of this, the present invention aims to provide a device capable of directional acoustic propagation to solve or alleviate the technical problems existing in the prior art, or at least provide a beneficial alternative.

[0006] The technical solution of this utility model embodiment is implemented as follows: it includes a support platform and a protective shell. An air supply component is fixedly connected above the support platform. A circuit board is fixedly connected inside the protective shell. Multiple transducers are fixedly connected to the front of the circuit board. Thermally conductive silicone is fixedly connected to one side of the multiple transducers arranged longitudinally. A front heat sink is fixedly connected to the outside of the thermally conductive silicone.

[0007] In some embodiments, a plurality of thermoelectric coolers are fixedly connected to one side of the protective shell, a plurality of rear heat sinks are fixedly connected to the rear side of the circuit board, and the other end of the rear heat sinks is fixedly connected to the thermoelectric coolers.

[0008] In some embodiments, an exhaust groove is fixedly connected to the upper part of the protective shell, and an exhaust end of an air supply pipe is fixedly connected to the lower part of the protective shell.

[0009] In some embodiments, the air supply assembly comprises a soundproof box, an air pump and a filter plate, one end of the soundproof box is fixedly connected above the support table, one end of the air pump is fixedly connected inside the soundproof box, the air inlet end of the air pump is fixedly connected with the filter plate, and the air inlet end of the air supply pipe is fixedly connected with the air outlet end of the air pump.

[0010] In some embodiments, a lifting base is fixedly connected above the support table, a lifting screw rod and a stabilizing rod are slidably connected to one end of the lifting base, and a lifting table is fixedly connected above the lifting screw rod and the stabilizing rod.

[0011] In some embodiments, a drive gear ring is rotatably connected above the lifting base, a lifting motor is fixedly connected above the lifting base, a gear on the power output end of the lifting motor is engaged with the drive gear ring, and the drive gear ring is threadedly connected to the lifting screw rod on the inner side.

[0012] In some embodiments, a turnover motor is fixedly connected to one end of the lifting table, a swing table one is fixedly connected to the power output end of the turnover motor, a swing table two is rotatably connected above the swing table one, the other end of the swing table two is fixedly connected to the rear side of the protective shell, and the swing table one is rotatably connected to the inside of the lifting table on both sides.

[0013] In some embodiments, a plurality of linear laser generators are fixedly installed on the front side of the protective shell, and the linear laser generators are fixedly connected to the four corners of the protective shell.

[0014] The embodiments of the utility model have the following advantages due to the adoption of the above technical scheme.

[0015] 1. A device capable of directional acoustic propagation, air flow is introduced from below by an air supply assembly, combined with a wedge-shaped front heat sink and heat-conducting silica gel, actively removing the heat generated by the transducer; at the same time, a semiconductor refrigeration sheet and a rear heat sink are used to assist in cooling the circuit board, effectively reducing the operating temperature of the device, and the soundproof box is used to suppress the noise and vibration of the air pump, avoiding the accumulation of dust affecting the heat dissipation efficiency.

[0016] 2. A device capable of directional acoustic propagation, a lifting motor drives a gear ring to drive a lifting screw rod, realizing vertical height adjustment of the protective shell, and the stabilizing rods on both sides ensure the stability of movement; in combination with the double swing table structure swing table one and two driven by the turnover motor, the sound wave propagation direction can be adjusted at multiple angles.

[0017] 3. A device capable of directional acoustic propagation, linear laser generators are installed on the four corners of the protective shell, cross laser markers are emitted to mark the sound beam coverage area, assisting users in real-time calibration of the directional propagation path, reducing the frequency of manual debugging, and ensuring that the sound is accurately projected to the target area.

[0018] The above summary is intended to illustrate the application and is not intended to be limiting thereof. Further aspects, embodiments and features of the application will become apparent from the detailed description in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the accompanying drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0020] Figure 1 is a front view structure diagram of the utility model;

[0021] Figure 2 is a rear view exploded structure diagram of the utility model;

[0022] Figure 3 is an upper side partial exploded structure diagram of the utility model;

[0023] Figure 4 is a protective shell exploded structure diagram of the utility model;

[0024] Figure 5 is a sound insulation box exploded structure diagram of the utility model.

[0025] Reference signs:

[0026] 1, support table; 2, protective shell; 3, lifting base; 4, lifting table; 5, swing table one; 6, swing table two; 7, transducer; 8, circuit board; 9, rear side heat sink; 10, exhaust groove; 11, air supply pipe; 12, semiconductor refrigeration piece; 13, lifting motor; 14, driving gear ring; 15, lifting screw; 16, stabilizing rod; 17, overturning motor; 18, line laser generator; 19, heat-conducting silica gel; 20, front side heat sink; 21, sound insulation box; 22, air pump; 23, filter plate. DETAILED DESCRIPTION

[0027] In the following, only some exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present application. Therefore, the drawings and the description are considered to be exemplary in nature rather than limiting.

[0028] The embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0029] Embodiment 1:

[0030] As shown in Figures 1-5 A device that can direct acoustic propagation, including a support table 1 and a protective shell 2, the support table 1 is fixedly connected with a gas supply assembly above, the protective shell 2 is fixedly connected with a circuit board 8 inside, the circuit board 8 includes preamplifier, conversion module, carrier wave modulation and other components, which is the current prior art, the front of the circuit board 8 is fixedly connected with a plurality of transducers 7, one side of the longitudinally arranged plurality of transducers 7 is fixedly connected with a heat-conducting silica gel 19, and the outer side of the heat-conducting silica gel 19 is fixedly connected with a front heat sink 20.

[0031] In use, the circuit board 8 can drive the transducer 7 to emit ultrasonic waves at high frequency for work, while the gas supply assembly below can be started to blow air upward from the lower side of the protective shell 2, at this time the heat generated by the transducer 7 can be carried away by the airflow, and the heat-conducting silica gel 19 cooperates with the front heat sink 20 below which is wedge-shaped, which can effectively conduct heat while reducing the influence of airflow passing through the vibration on the transducer 7, and the front heat sink 20 below which is wedge-shaped can play a guiding effect, further reducing the vibration of the airflow passing through, effectively dissipating heat while reducing the influence on the work of the transducer 7.

[0032] In this embodiment, a plurality of semiconductor refrigeration pieces 12 are fixedly connected to one side of the protective shell 2, and a plurality of rear heat sinks 9 are fixedly connected to the rear side of the circuit board 8, and the other end of the rear heat sink 9 is fixedly connected to the semiconductor refrigeration piece 12. The position where the semiconductor refrigeration piece 12 contacts the rear heat sink 9 is the refrigeration surface, which can cool the heat generated by the circuit board 8 and improve the cooling effect.

[0033] In this embodiment, an exhaust groove 10 is fixedly connected to the top of the protective shell 2, and an air outlet end of a gas supply pipe 11 is fixedly connected to the bottom of the protective shell 2; the gas supply assembly includes a soundproof box 21, a gas pump 22 and a filter plate 23, one end of the soundproof box 21 is fixedly connected to the top of the support table 1, one end of the gas pump 22 is fixedly connected to the inside of the soundproof box 21, the air inlet end of the gas pump 22 is fixedly connected with the filter plate 23, and the air inlet end of the gas supply pipe 11 is fixedly connected to the air outlet end of the gas pump 22.

[0034] The airflow generated by the gas pump 22 can enter the protective shell 2 through the gas supply pipe 11 for cooling, the filter plate 23 can filter dust in the air to prevent dust from accumulating in the protective shell 2, and the soundproof box 21 is made of soundproof cotton material to reduce vibration and noise transmission.

[0035] In this embodiment, a lifting base 3 is fixedly connected to the top of the support table 1, a lifting screw 15 and a stabilizing rod 16 are slidingly connected to one end of the lifting base 3, and a lifting table 4 is fixedly connected to the top of the lifting screw 15 and the stabilizing rod 16.

[0036] The driving gear ring 14 is rotatably connected above the lifting base 3, the lifting motor 13 is fixedly connected above the lifting base 3, the gear of the power output end of the lifting motor 13 is engaged with the driving gear ring 14, and the driving gear ring 14 is screw-connected to the lifting screw rod 15 on the inner side;

[0037] The lifting motor 13 can be operated to drive the driving gear ring 14 to rotate, and then drive the lifting screw rod 15 to move up and down, so that the protective shell 2 is driven to move up and down to adjust the position, and the stabilizing rods 16 are located on both sides, so that the up-and-down movement is more stable.

[0038] In the embodiment, the circuit board 8 can drive the transducer 7 to emit ultrasonic waves at a high frequency to work, and at the same time, the air supply assembly below can be started to blow air upward from the lower side of the protective shell 2. At this time, the heat generated by the transducer 7 can be carried away by the airflow, and the heat-conducting silica gel 19 cooperates with the front side heat dissipation plate 20 which is wedge-shaped on the lower side to effectively conduct heat and reduce the influence of the vibration of the airflow passing through on the transducer 7. In addition, the front side heat dissipation plate 20 which is wedge-shaped on the lower side can play a flow guiding effect, further reducing the vibration of the airflow passing through, effectively dissipating heat while reducing the influence on the working of the transducer 7.

[0039] The position where the semiconductor refrigeration sheet 12 contacts the rear side heat dissipation plate 9 is a refrigeration surface, which can cool the heat generated by the circuit board 8 to improve the cooling effect. The airflow generated by the air pump 22 can enter the protective shell 2 through the air supply pipe 11 to cool it. The filter plate 23 can filter dust in the air to prevent dust from accumulating in the protective shell 2. The soundproof box 21 is made of soundproof cotton material, which can reduce vibration and noise transmission

[0040] The lifting motor 13 can be operated to drive the driving gear ring 14 to rotate, and then drive the lifting screw rod 15 to move up and down, so that the protective shell 2 is driven to move up and down to adjust the position, and the stabilizing rods 16 are located on both sides, so that the up-and-down movement is more stable.

[0041] Embodiment 2:

[0042] A device capable of directional acoustic propagation, the embodiment is improved on the basis of embodiment 1, as shown in Figures 1-5 , as shown in

[0043] In the embodiment, the lifting platform 4 is fixedly connected at one end with the overturning motor 17, the power output end of the overturning motor 17 is fixedly connected with the swing platform one 5, the swing platform two 6 is rotatably connected above the swing platform one 5, the other end of the swing platform two 6 is fixedly connected to the rear side of the protective shell 2, and the swing platform one 5 is rotatably connected to the inside of the lifting platform 4 on both sides;

[0044] The swing platform one 5 cooperates with the swing platform two 6 to further adjust the orientation of the protective shell 2 from two directions, adjust the position of directional propagation, and the overturning motor 17 can be used for fine adjustment of the up-and-down angle.

[0045] In the embodiment, the protective shell 2 is fixedly provided with a plurality of linear laser generators 18 on the front face, the linear laser generators 18 are fixedly connected to four corners of the protective shell 2, and the linear laser generators 18 can emit cross-shaped laser for marking, so that the user can conveniently confirm the position of the directional sound propagation and reduce the position adjustment frequency.

[0046] The above merely describes the specific implementation of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can easily think of various changes or replacements within the technical range disclosed by the present application, and these should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A device for directional acoustic propagation comprising a support base (1) and a protective shell (2), characterized in that: The support table (1) is fixedly connected with a gas supply assembly above, the protection shell (2) is fixedly connected with a circuit board (8) inside, the front of the circuit board (8) is fixedly connected with a plurality of transducers (7), the side of the longitudinally arranged plurality of transducers (7) is fixedly connected with heat-conducting silica gel (19), and the outer side of the heat-conducting silica gel (19) is fixedly connected with a front heat dissipation plate (20).

2. A device for directional acoustic propagation according to claim 1, characterized in that: The protection shell (2) is fixedly connected with a plurality of semiconductor refrigerating sheets (12) on one side, and the rear side of the circuit board (8) is fixedly connected with a plurality of rear heat dissipation plates (9), and the other end of the rear heat dissipation plate (9) is fixedly connected to the semiconductor refrigerating sheet (12).

3. A device for directional acoustic propagation according to claim 2, characterized in that: The protection shell (2) is fixedly connected with an exhaust groove (10) above, and the lower side of the protection shell (2) is fixedly connected with an air outlet end of a gas supply pipe (11).

4. A device for directional acoustic propagation according to claim 2, characterized in that: The gas supply assembly comprises a soundproof box (21), a gas pump (22) and a filter plate (23), one end of the soundproof box (21) is fixedly connected to the upper side of the support table (1), one end of the gas pump (22) is fixedly connected to the inside of the soundproof box (21), the air inlet end of the gas pump (22) is fixedly connected with the filter plate (23), and the air inlet end of the gas supply pipe (11) is fixedly connected to the air outlet end of the gas pump (22).

5. A device that can direct acoustic propagation according to claim 1, wherein: The support table (1) is fixedly connected with a lifting base (3) above, one end of the lifting base (3) is slidingly connected with a lifting screw rod (15) and a stabilizing rod (16), and the upper side of the lifting screw rod (15) and the stabilizing rod (16) is fixedly connected with a lifting table (4).

6. A device for directional acoustic propagation according to claim 5, characterized in that: The upper side of the lifting base (3) is rotatably connected with a driving gear ring (14), the upper side of the lifting base (3) is fixedly connected with a lifting motor (13), the gear of the power output end of the lifting motor (13) is engaged with the driving gear ring (14), and the inner side of the driving gear ring (14) is threadedly connected with the lifting screw rod (15).

7. A device for directional acoustic propagation according to claim 6, characterized in that: One end of the lifting table (4) is fixedly connected with a turnover motor (17), the power output end of the turnover motor (17) is fixedly connected with a swing table one (5), the upper side of the swing table one (5) is rotatably connected with a swing table two (6), the other end of the swing table two (6) is fixedly connected to the rear side of the protection shell (2), and the two sides of the swing table one (5) are rotatably connected to the inside of the lifting table (4).

8. A device that can direct acoustic propagation according to claim 1, wherein: A plurality of line laser generators (18) are fixedly installed on the front of the protection shell (2), and the line laser generators (18) are fixedly connected to the four corners of the protection shell (2).

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