Conch type ultrasonic loudspeaker

Abstract

The utility model discloses a conch-type ultrasonic loudspeaker, which belongs to the technical field of ultrasonic loudspeakers and comprises a loudspeaker body and a directional loudspeaking system. The directional loudspeaking system comprises an audio control board, a transformer driving board electrically connected with the output end of the audio control board, an ultrasonic sensor electrically connected with the output end of the transformer driving board, and a power supply connected with the input end of the transformer driving board. The ultrasonic loudspeaker further comprises a shell covering the loudspeaker body, a mounting base arranged on the side, away from the loudspeaker body, of the shell, and fixing columns symmetrically and fixedly mounted on the two sides of the loudspeaker body. According to the ultrasonic loudspeaker, the first driving mechanism, the shell, the mounting seat and the second driving mechanism which are connected with the rotating column are arranged, so that the loudspeaker body can be adjusted at multiple angles, and the flexibility and directivity of sound transmission are realized.

Description

Technical Field

[0001] The utility model relates to the technical field of ultrasonic speakers, in particular to a conch-shaped ultrasonic speaker. Background Art

[0002] A conch-shaped ultrasonic speaker is an ultrasonic speaker designed in the shape of a conch. This speaker uses the conch sound amplification principle, that is, the principle of acoustic resonance, to amplify ultrasonic waves through the resonance effect of its internal resonance cavity.

[0003] Traditional speakers mainly spread the sound evenly to the surrounding space in a plane to ensure the breadth and consistency of audio coverage. However, this plane propagation method makes the audio transmission direction of ultrasonic speakers relatively fixed. When the ultrasonic speaker is used in situations where there are precise control requirements for the audio coverage area, or when it needs to adapt to an environment with a variable spatial layout, its plane propagation characteristics make the diffusion range and angle of the audio signal relatively fixed, which limits its application scope and effect to a certain extent.

[0004] Therefore, a conch-shaped ultrasonic speaker with strong flexibility is needed to solve the above problems. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] The utility model provides a conch-shaped ultrasonic speaker, aiming to solve the problem that the traditional speaker mentioned in the background technology mainly diffuses the audio evenly to the surrounding space in the form of a plane, and this plane propagation mode also causes the audio transmission direction of the ultrasonic speaker to be relatively fixed and lacks flexibility.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a conch-shaped ultrasonic speaker, comprising a speaker body and a directional sound-speaking system, wherein the directional sound-speaking system comprises an audio control board, a transformer driving board electrically connected to the output end of the audio control board, an ultrasonic sensor electrically connected to the output end of the transformer driving board, and a power supply connected to the input end of the transformer driving board; the ultrasonic speaker combined with the design of the directional sound-speaking system can realize high-precision directional propagation of sound, optimize sound quality and energy utilization efficiency, and has broad application prospects and market demand.

[0009] In order to improve the flexibility of use of the ultrasonic speaker, unlike the existing ultrasonic speakers, the ultrasonic speaker also includes a shell covering the speaker body, a mounting base arranged on the side of the shell away from the speaker body, fixed columns symmetrically fixedly installed on both sides of the speaker body, rotating columns respectively arranged in the shell at the positions corresponding to the two fixed columns, connecting screws arranged on the rotating columns, a first driving mechanism arranged in the shell and connected to one of the rotating columns for adjusting the flip angle of the speaker body, and a second driving mechanism arranged at the center position of one side of the shell close to the mounting base for adjusting the horizontal rotation angle of the shell, the rotating column is fixedly connected to the fixed column by the connecting screw; the arrangement of the first driving mechanism and the second driving mechanism enables the speaker body to be adjusted at multiple angles, thereby realizing the flexibility and directionality of sound propagation, and improving the effect and clarity of sound propagation. At the same time, the combined design of the fixed column, the rotating column and the connecting screw, when maintenance or assembly is required, the user only needs to rotate the connecting screw to easily realize the disassembly and assembly between the shell and the speaker body, making maintenance and assembly faster.

[0010] Preferably, in order to facilitate the installation of the rotating column and the fixed column, the shell is provided with a first mounting groove and a second mounting groove at the positions corresponding to the two rotating columns and the fixed columns, respectively, the two fixed columns respectively penetrate the first mounting groove and the second mounting groove horizontally, and the two rotating columns are respectively rotatably connected in the first mounting groove and the second mounting groove; the design of the first mounting groove and the second mounting groove enables the fixed column and the rotating column to be easily installed on the shell, greatly simplifying the assembly process.

[0011] Preferably, in order to facilitate the precise adjustment of the flipping angle of the speaker body, the first driving mechanism includes a first synchronous pulley fixedly mounted on a rotating column located in the first mounting groove, a second synchronous pulley arranged in the first mounting groove at a position corresponding to the upper side of the first synchronous pulley, a synchronous belt arranged on the first synchronous pulley and the second synchronous pulley, a support shaft fixedly mounted on the second synchronous pulley and rotatably connected to the first mounting groove, and a first driving motor fixedly arranged in the first mounting groove and fixedly connected to one end of the supporting shaft, the first synchronous pulley and the second synchronous pulley are connected and transmit power through the synchronous belt, and the first driving motor is electrically connected to the output end of the transformer driving board; the transmission design of the first synchronous pulley, the second synchronous pulley and the synchronous belt makes it possible to achieve precise control of the first driving motor by controlling the transformer driving board, and then efficiently convert the rotational power of the first driving motor into the rotational movement of the rotating column, so that the flipping angle of the speaker body can be precisely controlled, meeting the user's high requirements for directional sound propagation.

[0012] Preferably, in order to facilitate the installation of the second driving mechanism, a through hole is opened at the position of the mounting base corresponding to the second driving mechanism; the through hole facilitates the installation of the second driving mechanism, so that the driving mechanism can be firmly fixed on the mounting base, and the through hole also facilitates wiring and circuit connection, ensuring smooth transmission of electrical signals and reducing the difficulty and complexity of wiring.

[0013] Preferably, in order to further improve the maintainability and assembly convenience of the ultrasonic speaker, the second driving mechanism includes a mounting box inserted in the through hole, a fixing ring fixedly mounted on the mounting box and in contact with the mounting seat on the side close to the outer shell, and a fastening screw arranged on the mounting box, and the fixing ring is fixedly connected to the mounting seat by the fastening screw; the combined design of the mounting box, the fixing ring and the fastening screw, when maintenance or assembly is required, the user only needs to rotate the fastening screw to easily achieve disassembly and assembly between the outer shell and the mounting seat, making maintenance and assembly faster.

[0014] Preferably, in order to facilitate the precise adjustment of the horizontal rotation of the speaker body, the second driving mechanism also includes a partition fixedly installed in the installation box, a connecting shaft fixedly connected to the center position of the side of the shell close to the mounting seat and longitudinally penetrating the partition and the installation box in sequence, a connecting gear fixedly sleeved on the connecting shaft and located on the side of the partition close to the shell, a driving gear rotatably arranged on one side of the connecting gear and meshing with the connecting gear, a driving shaft fixedly connected to the driving gear and longitudinally penetrating the partition, and a second driving motor fixedly arranged on the partition and fixedly connected to the end of the driving shaft away from the driving gear, the connecting shaft is rotatably connected to the partition and the installation box, the driving shaft is rotatably connected to the partition, and the second driving motor is electrically connected to the output end of the transformer driving board; the transmission design of the connecting shaft, the connecting gear, the driving gear and the driving shaft makes it possible to achieve precise control of the second driving motor by controlling the transformer driving board, and then efficiently convert the rotational power of the second driving motor into the rotational movement of the shell, so that the horizontal rotation angle of the speaker body connected to the shell can be precisely controlled, further meeting the user's high requirements for directional sound propagation.

[0015] Preferably, in order to achieve convenient operability, the mounting base is provided with a power switch for controlling the on and off of the power supply, a sound source switching switch for switching the sound source, and an SD card interface for reading audio files; the power switch, sound source switching switch and SD card interface are concentrated on the mounting base, so that the user can easily turn on, shut down, switch the sound source, and read audio files of the ultrasonic speaker, which greatly simplifies the operation process and improves the user experience.

[0016] (III) Beneficial effects

[0017] The ultrasonic speaker is provided with a first driving mechanism connected to a rotating column, a shell, a mounting seat and a second driving mechanism, so that the speaker body can be adjusted at multiple angles, thereby achieving flexibility and directivity of sound propagation;

[0018] The ultrasonic speaker is provided with a fixing column, a rotating column and connecting screws, so that the disassembly and assembly between the shell and the speaker body is more convenient, so that users can perform maintenance and assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the structure of a conch-shaped ultrasonic speaker Figure 1 ;

[0020] Figure 2 A schematic diagram of the structure of a conch-shaped ultrasonic speaker Figure 2 ;

[0021] Figure 3 The figure is an exploded view of a conch-shaped ultrasonic speaker;

[0022] Figure 4 is a cross-sectional view of a conch-shaped ultrasonic speaker;

[0023] Figure 5 The present invention is a flow chart of a directional sound-raising system in a conch-shaped ultrasonic speaker.

[0024] In the figure:

[0025] 1. Mounting seat; 11. Through hole; 12. Power switch; 13. Audio source switch; 14. SD card interface;

[0026] 2. housing; 21. first mounting slot; 22. second mounting slot;

[0027] 3. Speaker body;

[0028] 4. Fixed column;

[0029] 5. Rotating column;

[0030] 6. Connecting screws;

[0031] 7. First driving mechanism; 71. First synchronous pulley; 72. Second synchronous pulley; 73. Synchronous belt; 74. Support shaft; 75. First driving motor;

[0032] 8. Second driving mechanism; 81. Mounting box; 82. Fixing ring; 83. Fastening screw; 84. Partition plate; 85. Connecting shaft; 86. Connecting gear; 87. Driving gear; 88. Driving shaft; 89. Second driving motor. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] The utility model provides a conch-shaped ultrasonic speaker, such as Figure 1-Figure 5 As shown, the ultrasonic speaker includes a speaker body 3 and a directional sound-speaking system, the directional sound-speaking system includes an audio control board, a transformer driving board electrically connected to the output end of the audio control board, an ultrasonic sensor electrically connected to the output end of the transformer driving board, and a power supply connected to the input end of the transformer driving board; the ultrasonic speaker also includes a shell 2 covering the speaker body 3, a mounting seat 1 arranged on the side of the shell 2 away from the speaker body 3, fixed columns 4 symmetrically fixedly installed on both sides of the speaker body 3, rotating columns 5 respectively rotatably arranged at positions corresponding to two fixed columns 4 in the shell 2, connecting screws 6 arranged on the rotating columns 5, a first driving mechanism 7 arranged in the shell 2 and connected to one of the rotating columns 5 for adjusting the flip angle of the speaker body 3, and a second driving mechanism 8 arranged at the center position of one side of the shell 2 close to the mounting seat 1 for adjusting the horizontal rotation angle of the shell 2, and the rotating column 5 is fixedly connected to the fixing column 4 by the connecting screw 6.

[0035] When in use, first install the corresponding rotating column 5 and the fixed column 4 by connecting the screws 6, and then install the mounting base 1 and the second driving mechanism 8, so as to realize the overall assembly of the ultrasonic speaker. Next, connect the ultrasonic speaker to the audio power supply to realize the power supply of the transformer driving board. After that, after receiving the audio signal, the audio control will process the audio signal and transmit it to the transformer driving board, and the transformer driving board will provide the ultrasonic sensor with a corresponding driving signal according to the received audio signal. After receiving the driving signal, the ultrasonic sensor will start to generate ultrasonic waves to form a directional ultrasonic beam for propagation. However, when using the directional speaker system, the user can start according to the use needs. The first driving mechanism 7 drives the corresponding rotating column 5 to rotate. Since the rotating column 5 is fixedly connected to the fixed column 4 on the speaker body 3, when the first driving mechanism 7 drives the rotating column 5 to rotate different numbers of circles, the speaker body 3 can be flipped to a specified angle. Alternatively, the second driving mechanism 8 can be started to drive the shell 2 to rotate. Since the speaker body 3 is connected to the shell 2 through the rotating column 5, when the second driving mechanism 8 is started to drive the shell 2 to rotate at different angles in the horizontal direction, the horizontal angle of the speaker body 3 can also be adjusted. Alternatively, the first driving mechanism 7 and the second driving mechanism 8 can be started at the same time, so that the speaker body 3 can be adjusted in a wider range to meet the needs of different scenarios.

[0036] Specifically, the housing 2 is provided with a first mounting groove 21 and a second mounting groove 22 at positions corresponding to the two rotating columns 5 and the fixed column 4, respectively. The two fixed columns 4 respectively penetrate the first mounting groove 21 and the second mounting groove 22 transversely, and the two rotating columns 5 are respectively rotatably connected in the first mounting groove 21 and the second mounting groove 22; wherein the first driving mechanism 7 comprises a first synchronous pulley 71 fixedly sleeved on the rotating column 5 located in the first mounting groove 21, a second synchronous pulley 72 arranged in the first mounting groove 21 at a position above the first synchronous pulley 71, a synchronous belt 73 arranged on the first synchronous pulley 71 and the second synchronous pulley 72, a support shaft 74 fixedly mounted on the second synchronous pulley 72 and rotatably connected to the first mounting groove 21, and a first driving motor 75 fixedly arranged in the first mounting groove 21 and fixedly connected to one end of the supporting shaft 74, the first synchronous pulley 71 and the second synchronous pulley 72 are connected and transmit power through the synchronous belt 73, and the first driving motor 75 is electrically connected to the output end of the transformer driving board;

[0037] Since the first drive motor 75 is electrically connected to the output end of the transformer drive board, when the first drive motor 75 receives the control signal, it will drive the support shaft 74 to rotate. Since the second synchronous pulley 72 is fixedly connected to the support shaft 74, the second synchronous pulley 72 can rotate with the rotation of the support shaft 74. Since the second synchronous pulley 72 and the first synchronous pulley 71 are connected and transmit power through the synchronous belt 73, the first synchronous pulley 71 can rotate with the rotation of the second synchronous pulley 72. The first synchronous pulley 71 is fixedly connected to the rotating column 5 located in the first mounting groove 21. When the first synchronous pulley 71 rotates different numbers of circles, the rotating column 5 is fixedly connected to the fixing column 4 through the connecting screw 6, which can indirectly drive the speaker body 3 to flip to different angles, thereby realizing the adjustment of the flipping angle of the speaker body 3 to meet the needs of different directional sound propagation.

[0038] Furthermore, a through hole 11 is provided at a position of the mounting seat 1 corresponding to the second driving mechanism 8. In addition, the second driving mechanism 8 includes a mounting box 81 inserted into the through hole 11, a fixing ring 82 fixedly sleeved on the mounting box 81 and in contact with the side of the mounting seat 1 close to the shell 2, and a fastening screw 83 provided on the mounting box 81, and the fixing ring 82 is fixedly connected to the mounting seat 1 through the fastening screw 83; after the user inserts the mounting box 81 into the through hole 11, the user can fix the fixing ring 82 with the mounting seat 1 by rotating the fastening screw 83, so as to complete the assembly of the mounting box 81 with the mounting seat 1, thereby indirectly completing the assembly and use of the shell 2 and the mounting seat 1 through the fixed connection between the mounting box 81 and the mounting seat 1, and when maintenance is required, the user only needs to loosen the fastening screw 83 to release the fixed connection between the fixing ring 82 and the mounting seat 1, so as to easily remove the mounting box 81 from the through hole 11, and then the shell 2 and the mounting seat 1 can be disassembled for the user to perform maintenance.

[0039] Further, the second driving mechanism 8 also includes a partition 84 fixedly installed in the installation box 81, a connecting shaft 85 fixedly connected to the central position of the side of the shell 2 close to the mounting seat 1 and longitudinally penetrating the partition 84 and the installation box 81 in sequence, a connecting gear 86 fixedly sleeved on the connecting shaft 85 and located on the side of the partition 84 close to the shell 2, a driving gear 87 rotatably arranged on one side of the connecting gear 86 and meshing with the connecting gear 86, a driving shaft 88 fixedly connected to the driving gear 87 and longitudinally penetrating the partition 84, and a second driving motor 89 fixedly arranged on the partition 84 and fixedly connected to one end of the driving shaft 88 away from the driving gear 87, the connecting shaft 85 is rotatably connected to the partition 84 and the installation box 81, the driving shaft 88 is rotatably connected to the partition 84, and the second driving motor 89 is electrically connected to the output end of the transformer driving board;

[0040] Since the second drive motor 89 is electrically connected to the output end of the transformer drive board, when the second drive motor 89 receives the control signal, it will drive the drive shaft 88 to rotate. Since the drive gear 87 is fixedly connected to the drive shaft 88, the drive gear 87 can rotate with the rotation of the drive shaft 88. Since the drive gear 87 is meshed with the connecting gear 86 on the connecting shaft 85, and the connecting shaft 85 is fixedly connected to the outer shell 2, when the drive gear 87 rotates different numbers of circles, it can indirectly drive the outer shell 2 to rotate different numbers of circles. At this time, the speaker body 3 installed on the outer shell 2 can rotate with the rotation of the outer shell 2, so that the horizontal angle of the speaker body 3 can be adjusted to further meet the needs of different directional sound propagation.

[0041] Furthermore, in order to achieve convenient operability, the mounting base 1 is provided with a power switch 12 for controlling the power on and off, a sound source switching switch 13 for switching the sound source, and an SD card interface 14 for reading audio files; the power switch 12, the sound source switching switch 13, and the SD card interface 14 are concentrated on the mounting base 1, so that the user can easily turn on, shut down, switch the sound source, and read the audio file of the ultrasonic speaker, which greatly simplifies the operation process and improves the user experience.

[0042] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A conch-shaped ultrasonic speaker, comprising a speaker body (3) and a directional sound-speaking system, wherein the directional sound-speaking system comprises an audio control board, a transformer driving board electrically connected to an output end of the audio control board, an ultrasonic sensor electrically connected to an output end of the transformer driving board, and a power supply connected to an input end of the transformer driving board; Features: The ultrasonic speaker further comprises a shell (2) covering the speaker body (3), a mounting seat (1) arranged on a side of the shell (2) away from the speaker body (3), fixed columns (4) symmetrically fixedly mounted on both sides of the speaker body (3), rotating columns (5) respectively arranged in the shell (2) at positions corresponding to the two fixed columns (4), connecting screws (6) arranged on the rotating columns (5), a first driving mechanism (7) arranged in the shell (2) and connected to one of the rotating columns (5) for adjusting the flip angle of the speaker body (3), and a second driving mechanism (8) arranged at a central position of a side of the shell (2) close to the mounting seat (1) for adjusting the horizontal rotation angle of the shell (2), wherein the rotating columns (5) are fixedly connected to the fixed columns (4) via the connecting screws (6).

2. A conch-shaped ultrasonic speaker according to claim 1, characterized in that: The housing (2) is provided with a first mounting groove (21) and a second mounting groove (22) at positions corresponding to the two rotating columns (5) and the fixed column (4), the two fixed columns (4) respectively penetrate the first mounting groove (21) and the second mounting groove (22) in a transverse direction, and the two rotating columns (5) are respectively rotatably connected in the first mounting groove (21) and the second mounting groove (22).

3. A conch-shaped ultrasonic speaker according to claim 2, characterized in that: The first driving mechanism (7) comprises a first synchronous belt pulley (71) fixedly mounted on a rotating column (5) located in the first mounting groove (21), a second synchronous belt pulley (72) arranged in the first mounting groove (21) at a position above the first synchronous belt pulley (71), a synchronous belt (73) arranged on the first synchronous belt pulley (71) and the second synchronous belt pulley (72), a supporting shaft (74) fixedly mounted on the second synchronous belt pulley (72) and rotatably connected to the first mounting groove (21), and a first driving motor (75) fixedly mounted in the first mounting groove (21) and fixedly connected to one end of the supporting shaft (74), the first synchronous belt pulley (71) and the second synchronous belt pulley (72) are connected and transmit power through the synchronous belt (73), and the first driving motor (75) is electrically connected to the output end of the transformer driving board.

4. The conch-shaped ultrasonic speaker according to claim 1, characterized in that: The mounting seat (1) is provided with a through hole (11) at a position corresponding to the second driving mechanism (8).

5. A conch-shaped ultrasonic speaker according to claim 4, characterized in that: The second driving mechanism (8) comprises a mounting box (81) inserted into the through hole (11), a fixing ring (82) fixedly sleeved on the mounting box (81) and in contact with a side of the mounting seat (1) close to the housing (2), and a fastening screw (83) arranged on the mounting box (81), wherein the fixing ring (82) is fixedly connected to the mounting seat (1) via the fastening screw (83).

6. A conch-shaped ultrasonic speaker according to claim 5, characterized in that: The second driving mechanism (8) further comprises a partition (84) fixedly mounted in the mounting box (81), a connecting shaft (85) fixedly connected to the center position of the side of the housing (2) close to the mounting seat (1) and longitudinally penetrating the partition (84) and the mounting box (81) in sequence, a connecting gear (86) fixedly sleeved on the connecting shaft (85) and located on the side of the partition (84) close to the housing (2), and a driving gear rotatably arranged on one side of the connecting gear (86) and meshing with the connecting gear (86). (87), a driving shaft (88) fixedly connected to the driving gear (87) and longitudinally penetrating the partition (84), and a second driving motor (89) fixedly arranged on the partition (84) and fixedly connected to one end of the driving shaft (88) away from the driving gear (87), the connecting shaft (85) is rotatably connected to the partition (84) and the mounting box (81), the driving shaft (88) is rotatably connected to the partition (84), and the second driving motor (89) is electrically connected to the output end of the transformer driving board.

7. The conch-shaped ultrasonic speaker according to claim 1, characterized in that: The mounting base (1) is provided with a power switch (12) for controlling the on and off of the power supply, a sound source switching switch (13) for switching sound sources, and an SD card interface (14) for reading audio files.

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