Directional high-frequency loudspeaker
By incorporating a heat dissipation mounting mesh, dust cover, waterproof and breathable membrane, and dehumidification layer into the directional high-frequency loudspeaker, the problems of poor heat dissipation and moisture are solved, ensuring the normal operation of internal components.
Patent Information
- Application Number
- CN202520175960.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-27
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-01-27
AI Technical Summary
Existing directional high-frequency loudspeakers have poor heat dissipation when used outdoors, leading to high temperature damage to the internal circuit boards. Furthermore, humid air can enter through tiny gaps under varying outdoor temperatures, causing the circuits to become damp.
A structure comprising a heat dissipation mounting mesh plate, a dust cover, a waterproof and breathable membrane, a molecular sieve-filled dehumidification layer, and a moisture-absorbing mesh plate is designed. Heat dissipation is achieved through the heat dissipation and dustproof filter mesh plate, waterproof and breathable membrane provides waterproofing, molecular sieve dehumidification, and moisture-absorbing mesh plate dehumidification, thereby protecting the internal components.
It effectively solves the heat dissipation problem, prevents the internal circuit board from burning out due to high temperature, and prevents humid air from entering, ensuring the normal operation of internal components.
Smart Images
Figure CN223798352U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of loudspeaker technology, specifically to a directional high-frequency loudspeaker. Background Technology
[0002] A directional high-frequency loudspeaker is a special acoustic device that can precisely focus sound in a specific direction, thereby achieving precise directional sound emission. This type of loudspeaker utilizes the high directivity of ultrasound and its nonlinear interaction in the air to produce self-demodulating audible sound, thus achieving directional sound propagation.
[0003] Existing directional high-frequency loudspeakers are designed for outdoor use and need to withstand harsh weather conditions such as high temperatures, typhoons, and heavy rain. To prevent dust and water damage, they are typically designed as sealed units. However, when used in outdoor settings such as advertising displays and digital signage, directional high-frequency loudspeakers require prolonged broadcasting. The sealed design results in poor heat dissipation, which can easily lead to overheating and burnout of the internal circuit boards over time. Furthermore, changes in outdoor temperature cause the expansion and contraction of the air inside the loudspeaker, creating a pressure difference that allows humid air to enter through tiny gaps and cause moisture damage to the internal circuitry. Therefore, it is necessary to address the problems of poor heat dissipation in existing directional high-frequency loudspeakers, which can easily lead to overheating and burnout of the internal circuit boards over time, and the problem of humid air entering through tiny gaps and causing moisture damage to the internal circuitry under varying outdoor temperatures. Utility Model Content
[0004] In view of the problems existing in the current directional high-frequency loudspeaker, this utility model is proposed.
[0005] Therefore, the purpose of this utility model is to provide a directional high-frequency loudspeaker that solves the problems of poor heat dissipation in existing directional high-frequency loudspeakers, which easily cause high-temperature burn-out of the internal circuit board under long-term use, and the problem of external humid air entering through tiny gaps and causing the internal circuit to become damp under outdoor temperature changes.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A directional high-frequency loudspeaker includes a housing. A heat dissipation mounting mesh plate is fixedly connected to the cavity of the housing via a plug-in mechanism. An array plate is fixedly connected to one end of the heat dissipation mounting mesh plate. Multiple ultrasonic generators are fixedly connected to the sidewall surface of one end of the array plate. A driving assembly is fixedly connected to the top of the heat dissipation mounting mesh plate. The driving assembly and the multiple ultrasonic generators are electrically connected. A mounting slot is provided on the sidewall surface of the housing, and a locking frame is engaged with it. A dust cover is fixedly connected to the sidewall of the locking frame. The surface of the dust cover... The chamber has multiple corresponding openings for the ultrasonic generator, each with a fixed dustproof and waterproof glass panel. The side wall of the chamber is rotatably connected to a top cover via hinges. A limiting mechanism is provided between the top cover and the chamber. The side wall surface of the top cover and the two end side walls of the chamber are fixedly connected to heat dissipation and dustproof filter plates via openings. Each heat dissipation and dustproof filter plate has a waterproof and breathable membrane on its surface. The chamber cavity has a molecular sieve-filled dehumidification layer. The two end side walls of the chamber cavity are fixedly connected to moisture-absorbing mesh plates via openings.
[0008] Preferably, the insertion mechanism includes a U-shaped positioning socket and a positioning plate. The U-shaped positioning socket is fixedly connected to both ends of the inner side wall of the compartment, and the positioning plate is fixedly connected to both ends of the side wall of the heat dissipation mounting mesh plate. The positioning plates at both ends are inserted into the corresponding U-shaped positioning sockets.
[0009] Preferably, the limiting mechanism includes threaded mounting holes and threaded mounting pins. Threaded mounting holes are provided at both ends of the top of the chamber body, and threaded mounting pins are inserted into the side wall surfaces of the top cover through openings at both ends. The threaded mounting pins at both ends are threadedly connected to the corresponding threaded mounting holes.
[0010] Preferably, the driving component includes a Bluetooth module, an integrated circuit board module, a piezoelectric transducer, and a battery, and the top of the heat dissipation mounting mesh plate is fixedly connected to the Bluetooth module, the integrated circuit board module, the piezoelectric transducer, and the battery.
[0011] Furthermore, sockets are fixedly connected to both ends of the dust cover, and spring pins are fixedly connected to both ends of the side wall of the compartment, with one end of each spring pin being plugged into the corresponding socket.
[0012] Preferably, a frame-shaped sealing dustproof strip is snapped between the hopper body and the dust cover, a frame-shaped sealing block is fixedly connected to the side wall of the top cover, and a sealing groove is opened on the top of the hopper body and the dust cover, and the frame-shaped sealing block is snapped into the sealing groove.
[0013] The technical effects and advantages provided by this utility model in the above technical solution are as follows:
[0014] 1. This utility model utilizes heat dissipation and dustproof filter plates installed on the side wall surface of the top cover and the side walls at both ends of the compartment to dissipate heat inside. It utilizes a waterproof and breathable membrane installed on the side wall of the heat dissipation and dustproof filter plate to prevent water from entering the interior. It utilizes a molecular sieve-filled dehumidification layer to dehumidify and protect the internal drive components and ultrasonic generator through the moisture absorption port mesh plate. It utilizes a heat dissipation mounting mesh plate to enhance the heat dissipation effect on the drive components.
[0015] 2. This utility model utilizes positioning inserts on the side walls at both ends of the heat dissipation mounting mesh plate, which are inserted into corresponding U-shaped positioning sockets to facilitate the installation of the heat dissipation mounting mesh plate inside the cavity of the chamber. A snap-fit frame on the side wall of the dust cover facilitates insertion and snap-fit with the mounting slots on the side wall of the chamber for positioning and installation. Dustproof and waterproof glass in multiple corresponding openings on the side wall of the dust cover provides dust and waterproof protection for multiple ultrasonic generators without affecting their use.
[0016] 3. This utility model utilizes a frame-shaped sealing dustproof strip that snaps between the dust cover and the hopper body to seal and protect the connection between the hopper body and the dust cover. The frame-shaped sealing block, by inserting into the sealing slot, seals and protects the top cover from the top of the hopper body and the dust cover. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.
[0018] Figure 1 This is a top view of the structure of this utility model;
[0019] Figure 2 This is a top view of the structure of this utility model;
[0020] Figure 3 This is a side structural sectional view of the present invention;
[0021] Figure 4 This is a partial perspective view of the present invention.
[0022] Explanation of reference numerals in the attached figures:
[0023] 1. Chamber body; 2. Heat dissipation mounting mesh plate; 3. Array plate; 4. Ultrasonic generator; 5. Drive assembly; 6. Mounting bayonet; 7. Snap-fit frame; 8. Dust cover; 9. Corresponding port; 10. Dustproof and waterproof glass; 11. Top cover; 12. Heat dissipation and dustproof filter mesh plate; 13. Waterproof and breathable membrane; 14. Moisture-absorbing sieve-filled dehumidification layer; 15. Moisture-absorbing port mesh plate; 16. U-shaped positioning socket; 17. Positioning insert plate; 18. Threaded mounting hole; 19. Threaded mounting pin; 20. Bluetooth module; 21. Integrated circuit board module; 22. Piezoelectric transducer; 23. Storage battery; 24. Socket; 25. Spring pin; 26. Frame-type sealing dustproof strip; 27. Frame-type sealing block; 28. Sealing slot. Detailed Implementation
[0024] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.
[0025] This utility model discloses a directional high-frequency loudspeaker.
[0026] This utility model provides, for example Figure 1-4The directional high-frequency loudspeaker shown includes a housing 1. A heat dissipation mounting mesh plate 2 is fixedly connected to the cavity of the housing 1 via a plug-in mechanism. An array plate 3 is fixedly connected to one end of the heat dissipation mounting mesh plate 2. Multiple ultrasonic generators 4 are fixedly connected to the side wall surface of one end of the array plate 3. A drive assembly 5 is fixedly connected to the top of the heat dissipation mounting mesh plate 2. The drive assembly 5 and the multiple ultrasonic generators 4 are electrically connected. A mounting slot 6 is provided on the side wall surface of the housing 1, and a locking frame 7 is engaged. A dust cover 8 is fixedly connected to the side wall of the locking frame 7. The surface of the dust cover 8 has multiple openings for engaging with the ultrasonic generators 4. Each corresponding port 9 is fixedly connected to a dustproof and waterproof glass 10. The side wall of the chamber 1 is rotatably connected to a top cover 11 via hinges. A limiting mechanism is provided between the top cover 11 and the chamber 1. The side wall surface of the top cover 11 and the two end side walls of the chamber 1 are fixedly connected to heat dissipation and dustproof filter plates 12 through openings. The surface of each heat dissipation and dustproof filter plate 12 is provided with a waterproof and breathable membrane 13. The cavity of the chamber 1 is provided with a molecular sieve-filled dehumidification layer 14. The two end side walls of the cavity of the chamber 1 are fixedly connected to moisture-absorbing mesh plates 15 through openings. Multiple ultrasonic generators set on the side wall of the array plate 3 are used to generate... The ultrasonic generator 4 achieves directional sound generation through the connection of the drive assembly 5. A snap-fit frame 7 on the side wall of the dust cover 8 facilitates insertion and snap-fit with the mounting slots 6 on the side wall of the chamber 1 for positioning and installation. Dustproof and waterproof glass 10 in multiple corresponding openings 9 on the side wall of the dust cover 8 provides dust and waterproof protection for multiple ultrasonic generators 4 without affecting their use. A top cover 11, through a limiting mechanism, seals and limits the top of the chamber 1 and the dust cover 8. Heat dissipation and dustproof filter plates 12 on the side wall surface of the top cover 11 and the side walls at both ends of the chamber 1 provide internal heat dissipation and dustproof protection. To dissipate heat, a waterproof and breathable membrane 13 is installed on the side wall of the heat dissipation and dustproof filter plate 12 to prevent water from entering the interior. A dehumidification layer 14 is filled with molecular sieves, and the internal drive component 5 and ultrasonic generator 4 are dehumidified and protected through the moisture absorption port mesh plate 15. The heat dissipation mounting mesh plate 2 is used to enhance the heat dissipation effect of the drive component 5. This solves the problems of poor heat dissipation effect of existing directional high-frequency speakers, which easily cause high temperature burn-out of internal circuit boards under long-term use, and the problem of external humid air entering through tiny gaps and causing internal circuits to become damp under outdoor temperature changes.
[0027] To facilitate the installation of the heat dissipation mounting mesh 2, such as Figure 1-4As shown, the insertion mechanism includes a U-shaped positioning socket 16 and a positioning plate 17. The U-shaped positioning socket 16 is fixedly connected to both ends of the inner side wall of the compartment 1, and the positioning plate 17 is fixedly connected to both ends of the side wall of the heat dissipation mounting mesh plate 2. The positioning plates 17 at both ends are inserted into the corresponding U-shaped positioning socket 16. By using the positioning plates 17 set on the side walls at both ends of the heat dissipation mounting mesh plate 2 and inserting them into the corresponding U-shaped positioning socket 16, it is easy to install the heat dissipation mounting mesh plate 2 into the cavity of the compartment 1.
[0028] In order to limit the position of the top cover 11, such as Figure 1 , 3 As shown in Figure 4, the limiting mechanism includes threaded mounting holes 18 and threaded mounting pins 19. Threaded mounting holes 18 are provided at both ends of the top of the compartment 1. Threaded mounting pins 19 are inserted into the side wall surfaces of the top cover 11 through openings. The threaded mounting pins 19 at both ends are threadedly connected to the corresponding threaded mounting holes 18. By using the threaded mounting pins 19 inserted at both ends of the side wall of the top cover 11, the top cover 11 is closed by rotation and then threadedly connected to the corresponding threaded mounting holes 18, thereby limiting the top cover 11.
[0029] To achieve directional sound generation in conjunction with ultrasonic generator 4, such as Figure 1 and 2 As shown, the driving component 5 includes a Bluetooth module 20, an integrated circuit board module 21, a piezoelectric transducer 22, and a battery 23. The top of the heat dissipation mounting mesh plate 2 is fixedly connected to the Bluetooth module 20, the integrated circuit board module 21, the piezoelectric transducer 22, and the battery 23. By using the driving component 5 composed of the Bluetooth module 20, the integrated circuit board module 21, the piezoelectric transducer 22, and the battery 23, directional sound generation can be achieved in conjunction with the ultrasonic generator 4.
[0030] To ensure proper positioning and fixation between the dust cover 8 and the silo body after installation, such as... Figure 1-3 As shown, sockets 24 are fixedly connected to both ends of the dust cover 8, and spring pins 25 are fixedly connected to both ends of the side wall of the compartment 1. One end of the spring pins 25 is inserted into the corresponding socket 24. By using the spring pins 25 set on both ends of the side wall of the compartment 1 and inserting them into the corresponding sockets 24, the dust cover 8 and the compartment are fixedly positioned after installation.
[0031] To ensure a tight seal at the connection points of the hopper body 1, dust cover 8, and top cover 11, such as... Figure 1-4As shown, a frame-shaped sealing dustproof strip 26 is snapped between the hopper body 1 and the dust cover 8, and a frame-shaped sealing block 27 is fixedly connected to the side wall of the top cover 11. A sealing groove 28 is opened on the top of the hopper body 1 and the dust cover 8, and the frame-shaped sealing block 27 is snapped into the sealing groove 28. The frame-shaped sealing dustproof strip 26 is used to seal and protect the connection between the hopper body 1 and the dust cover 8. The frame-shaped sealing block 27 is used to seal and protect the top of the top cover 11 and the top of the hopper body 1 and the dust cover 8 by inserting it into the sealing groove 28.
[0032] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A directional directivity high frequency loudspeaker comprising a cabinet (1), characterized in that, The cavity of the bin body (1) is fixedly connected with a heat dissipation mounting net plate (2) through a plug-in mechanism, one end of the heat dissipation mounting net plate (2) is fixedly connected with an array plate (3), one end of the array plate (3) is fixedly connected with a plurality of ultrasonic wave generators (4) on the side wall surface, the top of the heat dissipation mounting net plate (2) is fixedly connected with a driving assembly (5), the driving assembly (5) and the plurality of ultrasonic wave generators (4) are electrically connected, the side wall surface of the bin body (1) is provided with a mounting bayonet (6), and a clamping frame (7) is clamped, the side wall of the clamping frame (7) is fixedly connected with a dust cover (8), the surface of the dust cover (8) is provided with a plurality of corresponding ports (9) corresponding to the positions of the ultrasonic wave generators (4), and a dustproof and waterproof glass (10) is fixedly connected in each corresponding port (9), the side wall of the bin body (1) is rotatably connected with a top cover (11) through a hinge, a limiting mechanism is arranged between the top cover (11) and the bin body (1), the side wall surface of the top cover (11) and the both end side walls of the bin body (1) are fixedly connected with heat dissipation dustproof filter screen plates (12) through the opening ports, and a waterproof and breathable film (13) is arranged on the surface of each heat dissipation dustproof filter screen plate (12), a molecular sieve filling dehumidification layer (14) is arranged in the cavity of the bin body (1), and moisture absorption port net plates (15) are fixedly connected to the both end side walls in the cavity of the bin body (1) through the opening ports.
2. A directional high frequency loudspeaker according to claim 1, characterized in that The plug-in mechanism comprises U-shaped positioning sockets (16) and positioning plug-in plates (17), the both ends of the side walls in the cavity of the bin body (1) are fixedly connected with the U-shaped positioning sockets (16), and the both ends of the side walls of the heat dissipation mounting net plate (2) are fixedly connected with the positioning plug-in plates (17); the both ends of the positioning plug-in plates (17) are plugged into the corresponding U-shaped positioning sockets (16).
3. A directional high frequency loudspeaker according to claim 1, wherein The limiting mechanism comprises threaded mounting holes (18) and threaded mounting pins (19), the both ends of the top of the bin body (1) are provided with the threaded mounting holes (18), the both ends of the side wall surface of the top cover (11) are plugged into the threaded mounting pins (19) through the opening ports, and the both ends of the threaded mounting pins (19) are threadedly connected with the corresponding threaded mounting holes (18).
4. The directional high frequency loudspeaker of claim 1, wherein, The driving assembly (5) comprises a Bluetooth module (20), an integrated circuit board module (21), a piezoelectric transducer (22) and a storage battery (23), and the top of the heat dissipation mounting net plate (2) is fixedly connected with the Bluetooth module (20), the integrated circuit board module (21), the piezoelectric transducer (22) and the storage battery (23).
5. A directional high frequency loudspeaker according to claim 1, wherein The both end side walls of the dust cover (8) are fixedly connected with sockets (24), the both ends of the side walls of the bin body (1) are fixedly connected with spring latches (25), and one end of the both ends of the spring latches (25) is plugged into the corresponding sockets (24).
6. A directional, directional high frequency loudspeaker according to claim 1, characterized in that The bin body (1) and the dust cover (8) are clamped with a frame-shaped sealing dustproof strip (26), the side wall of the top cover (11) is fixedly connected with a frame-shaped sealing block (27), the top of the bin body (1) and the dust cover (8) is provided with a sealing clamping groove (28), and the frame-shaped sealing block (27) is clamped with the sealing clamping groove (28).