Miniature waterproof loudspeaker

Abstract

The utility model relates to the technical field of electroacoustic transducers, and discloses a miniature waterproof loudspeaker, which comprises a shell and a shell, the shell is arranged on the rear side of the shell, the outer side of the shell is fixedly connected with a sealing ring, the sealing ring is in contact with the shell, the front side of the shell is fixedly connected with two outer magnets, and the outer magnets are in contact with the shell. Two outer magnets are arranged in the shell, the close sides of the two outer magnets are both fixedly connected with washers, the front side of the shell is fixedly connected with two inner magnets, voice coils are arranged between the outer magnets and the inner magnets, the voice coils are fixedly connected to the front sides of the inner magnets, the rear side of the shell is fixedly connected with a fixing plate, and the fixing plate is fixedly connected with the two outer magnets. And two rubber pads are slidably connected to the interior of the fixing plate. According to the utility model, after the circuit is connected, the wire can be clamped and the wire and the loudspeaker can be sealed, so that water is prevented from entering the interior of the micro loudspeaker through the through hole, and electrical elements are further prevented from being affected with damp and damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of electroacoustic transducers, in particular to a miniature waterproof loudspeaker. Background Art

[0002] When the micro speaker is working, the size and direction of the magnetic field generated by the voice coil being energized changes continuously with the change of the audio current. The constant magnetic field of constant size and direction generated by the magnet interacts to make the voice coil move perpendicular to the direction of the current, thereby driving the vibration membrane to vibrate. The vibration of the vibration membrane causes the air to vibrate and make sound to realize the sound-raising function. It is widely used.

[0003] After searching, Chinese patent announcement number: CN212660317U discloses a waterproof micro speaker, including a basin frame and a diaphragm, the diaphragm includes a main body, the diaphragm also includes an extension portion arranged along the edge of the main body, the top surface of the basin frame is provided with a receiving groove for accommodating the extension portion, and the extension portion has at least two bonding surfaces bonded to the basin frame. In the waterproof micro speaker, the edge of the diaphragm has an extension portion extending into the basin frame receiving groove, and the extension portion has two bonding surfaces. Compared with the traditional micro speaker diaphragm having only a single bonding surface, the bonding area between the diaphragm and the basin frame in the waterproof micro speaker is larger and the amount of bonding glue is larger, which not only improves the stability of the connection between the diaphragm and the basin frame, strengthens the structure of the micro speaker, but also enables the micro speaker to achieve a deeper waterproof effect. At the same time, such a structure will not affect the acoustic performance of the micro speaker, effectively avoids the risk of air leakage caused by poor bonding, and is conducive to improving the yield rate of the waterproof micro speaker.

[0004] Although the above technology can enhance the structure of the micro speaker and enable the micro speaker to achieve a deeper waterproof effect, it still has some shortcomings. The voice coil needs to be connected to the power supply, so a through hole is opened at the bottom of the speaker for connecting to the wire. The above technology does not perform waterproof treatment on the connecting part, so water enters the interior of the micro speaker through the through hole, causing the electrical components to become damp and damaged. Therefore, a micro waterproof speaker is proposed to solve the above problem. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a miniature waterproof speaker, which aims to improve the problem in the prior art that water can enter the interior of the miniature speaker through the through hole, causing the electrical components to be damaged by moisture.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a miniature waterproof speaker, comprising an outer shell and a shell, the shell is installed on the rear side of the outer shell, the outer side of the shell is fixedly connected to a sealing ring, the sealing ring is in contact with the outer shell, the front side of the shell is fixedly connected to two outer magnets, the sides of the two outer magnets close to each other are fixedly connected to washers, the front side of the shell is fixedly connected to two inner magnets, a voice coil is arranged between the outer magnets and the inner magnets, the voice coil is fixedly connected to the front side of the inner magnet, the rear side of the shell is fixedly connected to a fixing plate, the interior of the fixing plate is slidably connected to two rubber pads, and the sides of the two rubber pads far from each other are fixedly connected to a reset assembly.

[0007] As a further description of the above technical solution:

[0008] The reset assembly includes two spring sheets, which are respectively fixedly connected to the far sides of the two rubber pads. The side of the spring sheet away from the rubber pads is fixedly connected to two limit blocks, and the limit blocks are slidably connected to the inside of the fixed plate.

[0009] As a further description of the above technical solution:

[0010] A circular ring is fixedly connected to the rear side of the shell, a water inlet pipe is fixedly connected to the top of the circular ring, a plurality of round rods are fixedly connected to the middle of the circular ring, a suction cup is fixedly connected to the other end of the round rod, a connecting pipe is fixedly connected between two adjacent round rods, and a switch assembly is fixedly connected to the top of one of the round rods.

[0011] As a further description of the above technical solution:

[0012] The switch assembly includes a valve, and the valve is fixedly connected to the top of one of the round rods.

[0013] As a further description of the above technical solution:

[0014] Wiring holes are provided on the adjacent sides of the two rubber pads.

[0015] As a further description of the above technical solution:

[0016] Four limiting grooves are provided inside the fixing plate, and the limiting blocks are specifically slidably connected to the middle parts of the limiting grooves.

[0017] As a further description of the above technical solution:

[0018] A funnel is fixedly connected to the top of the water inlet pipe, and a cover is threadedly connected to the outer periphery of the funnel.

[0019] The utility model has the following beneficial effects:

[0020] 1. In the utility model, by the cooperation of the fixing plate, the rubber pad and the reset assembly, the wires can be clamped after the circuit is connected and the wires and the speaker can be sealed to prevent water from entering the interior of the micro speaker through the through hole, thereby preventing the electrical components from being damaged by moisture.

[0021] 2. In the utility model, through the cooperation of the circular ring, the round rod, the suction cup, the connecting tube and the switch assembly, the heat of the speaker can be dissipated by injecting water into the circular ring, thereby preventing the electrical components from being damaged when the speaker works for a long time. At the same time, the speaker can be quickly fixed at the required position under the action of the suction cup, the speaker can be quickly removed by opening the valve, and water can be injected into the suction cup to increase the suction force of the suction cup. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A three-dimensional schematic diagram of a miniature waterproof speaker proposed by the utility model;

[0023] Figure 2 This is a structural schematic diagram of a switch assembly of a miniature waterproof speaker proposed by the utility model;

[0024] Figure 3 This is a structural schematic diagram of a sealing ring of a miniature waterproof speaker proposed by the utility model;

[0025] Figure 4 This is a structural schematic diagram of a reset component of a miniature waterproof speaker proposed by the utility model;

[0026] Figure 5 The present invention is a schematic structural diagram of a suction cup of a miniature waterproof speaker.

[0027] Legend:

[0028] 1. Outer shell; 2. Shell; 3. Sealing ring; 4. External magnet; 5. Internal magnet; 6. Voice coil; 7. Washer; 8. Fixing plate; 9. Rubber pad; 10. Shrapnel; 11. Limit block; 12. Ring; 13. Round rod; 14. Suction cup; 15. Connecting pipe; 16. Wiring hole; 17. Limiting groove; 18. Valve; 19. Water inlet pipe. DETAILED DESCRIPTION

[0029] 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.

[0030] Reference Figure 1-3 The utility model provides an embodiment: a miniature waterproof speaker, including an outer shell 1 and a shell body 2, the shell body 2 is installed on the rear side of the outer shell 1, and the shell body 2 is specifically connected to the outer shell 1 by a snap-fit ​​method to form a miniature speaker. At this time, the components inside the outer shell 1 and the shell body 2 can be protected. A sealing ring 3 is fixedly connected to the outer side of the shell body 2, and the sealing ring 3 is in contact with the outer shell 1. The sealing ring 3 can increase the sealing between the outer shell 1 and the shell body 2 to prevent water from entering and damaging the electrical components inside the speaker.

[0031] Reference Figure 2 and Figure 3 Two outer magnets 4 are fixedly connected to the front side of the shell 2, and washers 7 are fixedly connected to the adjacent sides of the two outer magnets 4. Two inner magnets 5 are fixedly connected to the front side of the shell 2. A voice coil 6 is arranged between the outer magnet 4 and the inner magnet 5. The voice coil 6 is fixedly connected to the front side of the inner magnet 5. The magnetic field of the intermediate magnetic circuit system can be made stronger by the action of the outer magnet 4, the inner magnet 5 and the voice coil 6 as well as the upper magnet and the lower magnet. The voice coil 6 is placed in the intermediate magnetic circuit and is subjected to a greater magnetic field force, and the vibration force of the speaker is also greater. The outer magnet 4, the inner magnet 5, the voice coil 6 and the upper and lower magnets are all prior art and will not be described in detail in this article.

[0032] Reference Figure 2 and Figure 4 A fixing plate 8 is fixedly connected to the rear side of the housing 2, and two rubber pads 9 are slidably connected inside the fixing plate 8. A wiring hole 16 is opened on the side close to the two rubber pads 9, and the wires can enter and connect with the voice coil 6 through the wiring hole 16. A reset component is fixedly connected to the side far from the two rubber pads 9. When the wires pass through the rubber pads 9, the two rubber pads 9 are squeezed, and the rubber pads 9 compress and deform the reset component. At this time, the rubber pads 9 can continue to contact with the wires under the action of the reset component, so that the sealing of the speaker can be guaranteed after the connection is completed, thereby preventing the electrical components from being damaged by moisture.

[0033] Reference Figure 4 The reset assembly includes two spring sheets 10, which are respectively fixedly connected to the far sides of the two rubber pads 9. The side of the spring sheet 10 away from the rubber pad 9 is fixedly connected to two limit blocks 11. The limit blocks 11 are slidably connected to the inside of the fixed plate 8. When the rubber pad 9 moves, the spring sheet 10 can be compressed and deformed. At the same time, under the action of the spring sheet 10, the rubber pad 9 can be continuously squeezed so that the rubber pad 9 is continuously in contact with the wire to ensure the sealing of the speaker.

[0034] Reference Figure 4Four limiting grooves 17 are provided inside the fixing plate 8, and the limiting block 11 is specifically slidably connected to the middle of the limiting groove 17. The limiting groove 17 can limit the limiting block 11, so that the spring sheet 10 can only move in parallel, preventing the spring sheet 10 from tilting or deflecting when being compressed.

[0035] Reference Figure 1 , Figure 2 and Figure 5 The rear side of the housing 2 is fixedly connected with a ring 12, the top of the ring 12 is fixedly connected with a water inlet pipe 19, the top of the water inlet pipe 19 is fixedly connected with a funnel, and the outer periphery of the funnel is threadedly connected with a cover, through the funnel, water can be more conveniently and quickly injected into the water inlet pipe 19, and under the action of the water inlet pipe 19, the injected water can enter the ring 12 and be stored, which can dissipate heat for the electrical components inside the housing 2, and prevent the heat generated by the speaker during long-term operation from causing damage to the electronic components. At the same time, the funnel can be closed under the action of the cover to prevent dust from entering, and a plurality of round rods 13 are fixedly connected to the middle of the ring 12, and the other end of the round rod 13 is fixedly A suction cup 14 is fixedly connected, and the ring 12 can be quickly fixed by the suction cup 14, and then it can be conveniently installed at the required position. A connecting pipe 15 is fixedly connected between two adjacent round rods 13. A switch assembly is fixedly connected to the top of one of the round rods 13. The switch assembly includes a valve 18, and the valve 18 is fixedly connected to the top of one of the round rods 13. By opening the valve 18, the negative pressure generated between the suction cup 14 and the wall can suck out the water. At the same time, the speaker can be quickly removed after the water is sucked out, and the water contacts the inner wall of the suction cup 14 after being sucked out, thereby improving the adsorption force of the suction cup 14 and improving the stability of the speaker fixation.

[0036] Working principle: When in use, the ring 12 can be fixed to the wall by the suction cup 14. When it needs to be removed, the water inside the ring 12 can be sucked out by the negative pressure between the suction cup 14 and the wall by opening the valve 18, thereby releasing the fixation of the ring 12 and allowing the water to contact the inner wall of the suction cup 14, thereby increasing the suction force of the suction cup 14. At the same time, the speaker can be cooled by the water inside the ring 12.

[0037] When the voice coil 6 is powered, the wires are first passed through the two rubber pads 9. When the wires pass through, the two rubber pads 9 are squeezed, and then the rubber pads 9 compress and deform the spring sheet 10. At the same time, under the action of the spring sheet 10, pressure is continuously applied to the rubber pads 9 so that the rubber pads 9 continue to contact with the wires, thereby ensuring the sealing of the speaker after the connection is completed.

[0038] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A miniature waterproof speaker, comprising a housing (1) and a shell (2), characterized in that: The shell (2) is mounted on the rear side of the outer shell (1); a sealing ring (3) is fixedly connected to the outer side of the shell (2); the sealing ring (3) is in contact with the outer shell (1); two external magnets (4) are fixedly connected to the front side of the shell (2); washers (7) are fixedly connected to the sides of the two external magnets (4) that are close to each other; two internal magnets (5) are fixedly connected to the front side of the shell (2); a voice coil (6) is arranged between the external magnets (4) and the internal magnets (5); the voice coil (6) is fixedly connected to the front side of the internal magnets (5); a fixing plate (8) is fixedly connected to the rear side of the shell (2); two rubber pads (9) are slidably connected to the interior of the fixing plate (8); and a reset assembly is fixedly connected to the sides of the two rubber pads (9) that are far from each other.

2. A miniature waterproof speaker according to claim 1, characterized in that: The reset assembly comprises two spring sheets (10), the two spring sheets (10) being fixedly connected to the far sides of the two rubber pads (9), respectively; the side of the spring sheet (10) away from the rubber pads (9) is fixedly connected to two limit blocks (11), and the limit blocks (11) are slidably connected to the inside of the fixed plate (8).

3. The miniature waterproof speaker according to claim 1, characterized in that: A circular ring (12) is fixedly connected to the rear side of the housing (2), a water inlet pipe (19) is fixedly connected to the top of the circular ring (12), a plurality of round rods (13) are fixedly connected to the middle of the circular ring (12), a suction cup (14) is fixedly connected to the other end of the round rod (13), a connecting pipe (15) is fixedly connected between two adjacent round rods (13), and a switch assembly is fixedly connected to the top of one of the round rods (13).

4. A miniature waterproof speaker according to claim 3, characterized in that: The switch assembly comprises a valve (18), and the valve (18) is fixedly connected to the top of one of the round rods (13).

5. The miniature waterproof speaker according to claim 1, characterized in that: A wiring hole (16) is provided on one side of the two rubber pads (9) adjacent to each other.

6. The miniature waterproof speaker according to claim 2, characterized in that: Four limiting grooves (17) are provided inside the fixing plate (8), and the limiting block (11) is specifically slidably connected to the middle of the limiting grooves (17).

7. The miniature waterproof speaker according to claim 3, characterized in that: A funnel is fixedly connected to the top of the water inlet pipe (19), and a cover is threadedly connected to the outer periphery of the funnel.

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