Panel loudspeaker with waterproof function
By using a sealed cover structure and a fan-driven gas circulation design, the problem of balancing waterproofing and heat dissipation in traditional flat panel speakers is solved, achieving a balance between efficient heat dissipation and waterproofing, thus improving the speaker's lifespan and sound quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BID ELECTRONIC TECH CO LTD
- Filing Date
- 2025-05-06
- Publication Date
- 2026-05-05
AI Technical Summary
Traditional flat panel speakers struggle to balance waterproofing and heat dissipation design. Their sealed design provides insufficient waterproofing, and heat can easily accumulate inside, affecting their lifespan and sound quality.
It adopts a sealed cover structure, including cover one and cover two. Heat dissipation is achieved by driving gas circulation through a fan. The opening and closing of the vent is controlled by a sealing ball, and the hot air is discharged by the ventilation holes, maintaining the sealing and waterproof performance.
While maintaining high heat dissipation, it also has good sealing and waterproof performance, is easy to assemble, and is convenient for inspection and maintenance.
Smart Images

Figure CN224205240U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of loudspeaker technology, and in particular to a waterproof flat panel loudspeaker. Background Technology
[0002] Flat panel speakers are widely used in various electronic devices due to their advantages such as thinness, lightness, and good sound quality. However, traditional flat panel speakers have poor waterproof design. When exposed to humid environments or splashes of water, moisture can easily penetrate the internal components, causing short circuits and damage to electronic components, thus shortening their lifespan. At the same time, because electronic components generate a lot of heat when the speaker is working, if heat dissipation is not timely, the component temperature will continue to rise, affecting not only performance and lifespan but also sound quality distortion and degrading the user experience.
[0003] Currently, it is difficult for speakers on the market to achieve a balance between waterproofing and heat dissipation design. While sealed designs can provide waterproofing, they tend to accumulate heat internally, leading to faster aging. On the other hand, speakers that prioritize heat dissipation often fail to meet the waterproofing requirements for use in humid environments. Therefore, a waterproof flat panel speaker is proposed. Utility Model Content
[0004] The purpose of this invention is to provide a waterproof flat panel speaker, which solves the technical problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a waterproof flat panel speaker, comprising a housing, wherein partitions are symmetrically connected to the inner wall of the housing, and the outer wall of one side of the two partitions that are far apart from each other forms a transition chamber with the inner wall of the housing, and a sealing chamber is formed between the two partitions, wherein a sealing cover is installed inside the sealing chamber, and the sealing cover is composed of a cover shell one and a cover shell two, wherein the cover shell one is located above the cover shell two, the cover shell one is provided with a heat dissipation mechanism, and the cover shell two is provided with ventilation mechanisms at both the left and right ends.
[0006] Preferably, the cover has a circular opening, the heat dissipation mechanism includes a connecting pipe, the connecting pipe is fixedly connected to the outside of the circular opening, the inner wall of the connecting pipe is fixedly connected to a fixing frame, and the inner wall of the fixing frame is fixedly connected to a fan.
[0007] Preferably, a dustproof net is fixedly connected to the inner wall of the circular opening, and a protective cover is fixedly connected to the outer wall of the connecting pipe.
[0008] Preferably, the sealing cover is provided with wiring terminals at both ends, and the inner wall of the partition is fixedly connected with a sealing ring for sealing the wiring terminals.
[0009] Preferably, both the first and second covers are symmetrically connected with connecting blocks. Both ends of the second cover are fixedly connected with air outlet pipes. The end of the air outlet pipe away from the second cover extends through the partition into the interior of the transition chamber. The end of the air outlet pipe away from the second cover is threadedly connected with a limit cap. A sealing ball is provided inside the air outlet pipe. A vent is provided on the air outlet pipe, and the vent is connected to the transition chamber.
[0010] Preferably, the outer wall of the sealing cover is symmetrically connected with fixing rings, and the outer wall of the fixing rings is rotatably connected to the inner wall of the sealing chamber.
[0011] Preferably, the shell has a vent hole, which is connected to the transition chamber.
[0012] Compared with related technologies, the waterproof flat panel speaker provided by this utility model has the following advantages:
[0013] 1. This utility model provides a waterproof flat panel speaker. In daily use, the vent is closed by a sealing ball, keeping the speaker cover sealed and ensuring its waterproof performance. When heat dissipation is required for the internal structure of the speaker, the fan is controlled to operate, and the air pressure pushes the sealing ball towards the end of the air outlet pipe away from the second cover, so that the vent on the air outlet pipe is connected to the second cover. This allows the hot air inside the second cover to be discharged into the transition chamber and then discharged out of the shell through the vent hole, achieving a heat dissipation effect. This speaker structure maintains high heat dissipation while also having high sealing performance, making it highly practical.
[0014] 2. This utility model provides a waterproof flat panel speaker. In use, the internal structure of the speaker is installed inside the second cover, and then the first cover is placed on top of the second cover. The corresponding bolts are then inserted into the connecting block to fix the first cover and the second cover together to form a sealed cover, which seals and protects the internal structure of the speaker. The assembly method is simple to disassemble and assemble, and facilitates subsequent inspection and maintenance. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a cross-sectional view of the outer shell of this utility model;
[0017] Figure 3 This is a cross-sectional structural diagram of the present invention;
[0018] Figure 4 For the present utility model Figure 3 Enlarged view of point A in the middle;
[0019] Figure 5This is a schematic diagram of the inner shell structure of this utility model.
[0020] In the diagram: 1. Shell; 2. Partition; 3. Transition chamber; 4. Sealed chamber; 5. Sealing cover; 501. Cover 1; 502. Cover 2; 6. Sealing ring; 7. Terminal; 8. Connecting pipe; 9. Fixing frame; 10. Fan; 11. Dustproof net; 12. Protective cover; 13. Fixing ring; 14. Air outlet pipe; 15. Limiting cover; 16. Sealing ball; 17. Vent; 18. Breathing hole; 19. Connecting block. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0022] Example:
[0023] Please see Figures 1-5 This utility model provides a technical solution: a waterproof flat panel speaker, including a housing 1, with partitions 2 symmetrically connected to the inner wall of the housing 1. The outer wall of the two partitions 2 that are far apart from each other forms a transition chamber 3 with the inner wall of the housing 1. A sealing chamber 4 is formed between the two partitions 2. A sealing cover 5 is installed inside the sealing chamber 4. The sealing cover 5 is composed of a cover 1 501 and a cover 2 502. The cover 1 501 is located above the cover 2 502. A heat dissipation mechanism is provided on the cover 1 501. Ventilation mechanisms are provided at both ends of the cover 2 502.
[0024] Both housing 1 (501) and housing 2 (502) are symmetrically connected with connecting blocks 19. The outer wall of the sealing cover 5 is symmetrically connected with fixing rings 13. The outer wall of the fixing rings 13 is rotatably connected to the inner wall of the sealing chamber 4. In use, the internal structure of the speaker is installed inside housing 2 (502), and then housing 1 (501) is placed on top of housing 2 (502). Then, corresponding bolts are inserted into the connecting blocks 19 to fix housing 1 (501) and housing 2 (502) together to form the sealing cover 5, which seals and protects the internal structure of the speaker. After assembly, the sealing cover 5 is installed in the sealing chamber 4 through the fixing rings 13.
[0025] Both ends of the sealing cover 5 are provided with wiring terminals 7, and the inner wall of the partition 2 is fixedly connected with a sealing ring 6 for sealing the wiring terminals 7; the wiring terminals 7 enable the internal structure of the speaker to be connected to the control system on the flat panel speaker assembly, and the sealing ring 6 can seal and protect the wiring terminals 7.
[0026] A circular opening is provided on the first casing 501. The heat dissipation mechanism includes a connecting pipe 8, which is fixedly connected to the outside of the circular opening. A fixing bracket 9 is fixedly connected to the inner wall of the connecting pipe 8, and a fan 10 is fixedly connected to the inner wall of the fixing bracket 9. A dustproof net 11 is fixedly connected to the inner wall of the circular opening, and a protective cover 12 is fixedly connected to the outer wall of the connecting pipe 8. Both ends of the second casing 502 are fixedly connected to air outlet pipes 14. The end of the air outlet pipe 14 away from the second casing 502 extends through the partition 2 into the interior of the transition chamber 3. The end of the air outlet pipe 14 away from the second casing 502 is threadedly connected to a limit cover 15. A sealing ball 16 is provided inside the air outlet pipe 14. A vent 17 is provided on the air outlet pipe 14 and is connected to the transition chamber 3. A vent hole 18 is provided on the casing 1 and is connected to the transition chamber 3. The dustproof net 11 and the protective cover 12 are used to heat dissipate heat. 2. It can isolate dust and moisture inside the housing 1 of the connecting pipe 8. The vent 17 on the air outlet pipe 14 can be opened and closed by the sealing ball 16. The air outlet pipe 14 can be designed as a bend or inclined. The end of the air outlet pipe 14 away from the cover 502 is higher than the end connected to the cover 502. When the airflow inside the cover 502 pushes open the sealing ball 16, the vent 17 is in the open state. When there is no gas movement inside the cover 502, the sealing ball 16 is reset due to its own weight, so that the vent 17 is not connected to the sealing cover 5 (i.e., closed state). This allows the sealing cover 5 to maintain high heat dissipation while also having good sealing and waterproof performance. The limiting cover 15 can limit the sealing ball 16 for protection. When the limiting cover 15 is removed from the air outlet pipe 14, it is convenient to inspect and replace the sealing ball 16.
[0027] In this embodiment, when the fan 10 is running, the gas circulates within the sealing cover 5. The gas pressure pushes the sealing ball 16 toward the end of the air outlet duct 14 away from the second housing 502, so that the vent 17 on the air outlet duct 14 communicates with the second housing 502. This allows the hot air inside the second housing 502 to be discharged into the transition chamber 3 and then discharged outside the housing 1 through the vent 18, achieving a heat dissipation effect. After heat dissipation is completed, the fan 10 is turned off, and the sealing ball 16 resets under the action of no gas. The vent 17 is closed to prevent moisture from entering the sealing chamber 4, ensuring the safety of the speaker's internal structure. This allows the sealing cover 5 to maintain high heat dissipation while also having good sealing and waterproof performance.
[0028] Working principle: In use, the internal structure of the speaker is installed inside the second housing 502. Then, the first housing 501 is placed on top of the second housing 502. The corresponding bolts are then inserted into the connecting block 19 to fix the first housing 501 and the second housing 502 together, assembling them into a sealing cover 5 to seal and protect the internal structure of the speaker. After assembly, the sealing cover 5 is installed in the sealing chamber 4 via the fixing ring 13. The wiring terminal 7 is then connected to the control system on the flat panel speaker assembly. In daily use, the sealing cover... Ball 16 closes the vent 17, sealing the speaker housing 1 and ensuring its waterproof performance. When heat dissipation is needed for the internal structure of the speaker, the fan 10 is activated, causing gas to circulate within the sealing cover 5. The gas pressure pushes the sealing ball 16 towards the end of the exhaust pipe 14 away from the second housing 502, connecting the vent 17 on the exhaust pipe 14 with the second housing 502. This allows hot air inside the second housing 502 to be discharged into the transition chamber 3 and then out of the housing 1 through the vent 18, achieving heat dissipation. After heat dissipation is complete, the fan 10 is turned off, and the sealing ball 16 returns to its original position without gas action. The vent 17 closes, preventing moisture from entering the sealing chamber 4 and ensuring the safety of the internal structure of the speaker. This allows the sealing cover 5 to maintain high heat dissipation while also providing excellent sealing and waterproof performance.
[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A waterproof flat panel speaker, comprising a housing (1), characterized in that: The inner wall of the shell (1) is symmetrically connected with partitions (2). The outer wall of the two partitions (2) that are far apart from each other forms a transition chamber (3) with the inner wall of the shell (1). A sealing chamber (4) is formed between the two partitions (2). A sealing cover (5) is installed inside the sealing chamber (4). The sealing cover (5) is composed of a cover one (501) and a cover two (502). The cover one (501) is located above the cover two (502). A heat dissipation mechanism is provided on the cover one (501). Ventilation mechanisms are provided at both ends of the cover two (502).
2. A waterproof flat panel speaker according to claim 1, characterized in that: The cover (501) has a circular opening. The heat dissipation mechanism includes a connecting pipe (8). The connecting pipe (8) is fixedly connected to the outside of the circular opening. A fixing frame (9) is fixedly connected to the inner wall of the connecting pipe (8). A fan (10) is fixedly connected to the inner wall of the fixing frame (9).
3. A waterproof flat panel speaker according to claim 2, characterized in that: A dustproof net (11) is fixedly connected to the inner wall of the circular opening, and a protective cover (12) is fixedly connected to the outer wall of the connecting pipe (8).
4. A waterproof flat panel speaker according to claim 1, characterized in that: Both ends of the sealing cover (5) are provided with terminals (7), and the inner wall of the partition (2) is fixedly connected with a sealing ring (6) for sealing the terminals (7).
5. A waterproof flat panel speaker according to claim 1, characterized in that: Both the first cover (501) and the second cover (502) are symmetrically connected with connecting blocks (19). Both the left and right ends of the second cover (502) are fixedly connected with air outlet pipes (14). The end of the air outlet pipe (14) away from the second cover (502) passes through the partition (2) and extends into the interior of the transition chamber (3). The end of the air outlet pipe (14) away from the second cover (502) is threadedly connected with a limit cap (15). A sealing ball (16) is provided inside the air outlet pipe (14). A vent (17) is opened on the air outlet pipe (14). The vent (17) is connected to the transition chamber (3).
6. A waterproof flat panel speaker according to claim 1, characterized in that: The outer wall of the sealing cover (5) is symmetrically connected with a fixing ring (13), and the outer wall of the fixing ring (13) is rotatably connected to the inner wall of the sealing chamber (4).
7. A waterproof flat panel speaker according to claim 1, characterized in that: The shell (1) has a vent hole (18) which is connected to the transition chamber (3).