Vehicle-mounted speaker with dustproof cap

Abstract

The utility model discloses a vehicle-mounted loudspeaker with dustproof cap, including basin frame, dustproof cap body and card seat, dustproof cap body places the top of basin frame to fix through card seat, the periphery fixed connection of basin frame has assembly slot, the side away from basin frame of assembly slot is equipped with a plurality of through -hole, the through -hole is installed magnetron subassembly, card seat is inserted with assembly slot, and card seat is equipped with a plurality of storage groove on the side close to through -hole, the inside of storage groove is provided with the fender, fender fixedly connected with permanent magnet no.

Description

Technical Field

[0001] This utility model belongs to the field of loudspeaker technology, and in particular relates to a vehicle loudspeaker with a dust cap. Background Technology

[0002] A loudspeaker is a transducer that converts electrical signals into sound signals. Audio electrical energy vibrates its cone or diaphragm through electromagnetic, piezoelectric, or electrostatic effects, causing it to resonate with the surrounding air and produce sound.

[0003] After prolonged use, the speaker's dust cap may age and break, making it inconvenient for users to replace. Dust will enter the speaker's interior through the damage and accumulate on the internal components, thus affecting the speaker's lifespan. Utility Model Content

[0004] This utility model addresses the problems in the prior art by proposing the following technical solution:

[0005] A vehicle speaker with a dust cap includes a frame, a dust cap body, and a mounting bracket. The dust cap body is placed on top of the frame and fixed by the mounting bracket. A mounting groove is fixedly connected to the periphery of the frame. Several through holes are opened on the side of the mounting groove away from the frame. A magnetic control component is installed in the through holes. The mounting bracket is inserted into the mounting groove, and several storage slots are opened on the side of the mounting bracket near the through holes. A stop block is provided inside the storage slot. A permanent magnet is fixedly connected to the stop block. The permanent magnet magnetically engages with the magnetic control component and abuts against the side wall of the through hole.

[0006] As a preferred embodiment of the above technical solution, a metal sheet is fixedly connected to the inner wall of the assembly groove, and a permanent magnet that magnetically attracts the metal sheet is fixedly connected to one side of the card holder.

[0007] As a preferred embodiment of the above technical solution, the magnetic control assembly includes a circular turntable rotatably connected to the through hole. A knob is fixedly connected to one side of the circular turntable, and permanent magnet three and permanent magnet four are fixedly connected to the other side. Permanent magnet three is magnetically attracted to permanent magnet one.

[0008] As a preferred embodiment of the above technical solution, the permanent magnets three and four have opposite magnetic poles on the side closest to the card slot.

[0009] As a preferred embodiment of the above technical solution, the dust cap body is made of carbon fiber or aramid fiber, and its inner wall is adhered with a damping adhesive layer.

[0010] The beneficial effects of this utility model are as follows:

[0011] 1. This utility model uses permanent magnet three and permanent magnet four to magnetically control permanent magnet one, which makes it easy to pull it from the inside of the storage slot into the inside of the through hole, or push it from the inside of the through hole into the inside of the storage slot. This makes it easy to disassemble and assemble the card holder and the dust cap body, so that the damaged dust cap body can be quickly replaced, reducing maintenance costs.

[0012] 2. This utility model replaces traditional paper or plastic dust caps with carbon fiber or aramid fiber, which gives it the advantages of reducing vibration mass and improving high-frequency response sensitivity, while also enhancing its resistance to deformation and preventing the dust cap from denting or cracking after long-term use.

[0013] 3. The present invention incorporates a damping adhesive layer on the inner layer of the dust cap body, which can suppress high-frequency standing waves and resonance, reduce distortion, and enhance the vibration coupling consistency between the dust cap body and the diaphragm. Attached Figure Description

[0014] Figure 1 The diagram shown is a structural schematic of a vehicle speaker with a dust cap in an embodiment;

[0015] Figure 2 What is shown is Figure 1 A magnified schematic diagram of the structure at point A in the diagram.

[0016] Explanation of reference numerals in the attached figures:

[0017] 10. Sink holder; 11. Assembly slot; 12. Through hole; 13. Metal sheet; 20. Dust cap body; 30. Card holder; 31. Storage slot; 32. Stop block; 33. Permanent magnet one; 34. Permanent magnet two; 40. Magnetic control component; 41. Circular turntable; 42. Knob; 43. Permanent magnet three; 44. Permanent magnet four. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0019] Example

[0020] like Figure 1 and Figure 2As shown, a vehicle speaker with a dust cap includes a frame 10, a dust cap body 20, and a mounting base 30. The dust cap body 20 is placed on top of the frame 10 and fixed by the mounting base 30. A mounting groove 11 is fixedly connected to the periphery of the frame 10. Several through holes 12 are opened on the side of the mounting groove 11 away from the frame 10. A magnetic control component 40 is installed in the through holes 12. The mounting base 30 is inserted into the mounting groove 11, and several storage slots 31 are opened on the side of the mounting base 30 near the through holes 12. A stop block 32 is provided inside the storage slot 31. A permanent magnet 33 is fixedly connected to the stop block 32. The permanent magnet 33 magnetically engages with the magnetic control component 40, and the permanent magnet 33 abuts against the side wall of the through hole 12.

[0021] It should be noted that the basin stand 10 is funnel-shaped, and the several through holes 12 and the storage slot 31 are arranged in a circular array with the center of the basin stand 10 as the base point. The initial position of the stop block 32 and the permanent magnet 33 is located inside the storage slot 31. At the same time, the outer diameter of the stop block 32 is larger than the diameter of the storage slot 31 near the opening of the through hole 12, so that the stop block 32 cannot be separated from the storage slot 31.

[0022] Specifically, the dust cap body 20 is fixed to the basin stand 10 by the bracket 30. Then, the permanent magnet 33 is pulled out from the inside of the storage groove 31 by the magnetic control component 40 and enters the inside of the through hole 12. The bracket 30 is separated from the assembly groove 11 by the permanent magnet 33 abutting against the side wall of the through hole 12, thereby firmly fixing the dust cap body 20 to the basin stand 10.

[0023] like Figure 1 and Figure 2 As shown, a metal sheet 13 is fixedly connected to the inner wall of the assembly slot 11, and a permanent magnet 34 that magnetically attracts the metal sheet 13 is fixedly connected to one side of the card holder 30.

[0024] Specifically, through the magnetic attraction between the permanent magnet 34 and the metal sheet 13, the card holder 30 can continue to fix the dust cap body 20 without any external interference before the permanent magnet 33 enters the interior of the through hole 12.

[0025] like Figure 2 As shown, the magnetic control assembly 40 includes a circular turntable 41 rotatably connected to the through hole 12. A knob 42 is fixedly connected to one side of the circular turntable 41, and permanent magnet 33 and permanent magnet 44 are fixedly connected to the other side. Permanent magnet 33 and permanent magnet 133 are magnetically attracted.

[0026] It should be noted that the knob 42 has an indicator groove to indicate the position of permanent magnet three 43 and permanent magnet four 44. Both permanent magnet three 43 and permanent magnet four 44 are made of neodymium iron boron, but are not limited to neodymium iron boron.

[0027] Specifically, the side of knob 42 away from the circular turntable 41 is located inside the through hole 12, so that the tray 10 and the mounting slot 11 will not be disturbed when installed in the vehicle. The magnetic poles of permanent magnets 33 and 44 are opposite on the side closest to the card holder 30. Rotating knob 42 drives permanent magnets 33 and 44 to rotate simultaneously through the circular turntable 41. When permanent magnet 33 is aligned with permanent magnet 133, permanent magnet 33 will pull permanent magnet 133 from inside the storage slot 31 into the through hole 12. The attraction force is controlled at 0.5N-1N. When permanent magnet 44 is aligned with permanent magnet 133, permanent magnet 44 will push permanent magnet 133 back into the storage slot 31 from inside the through hole 12, which facilitates the disassembly of card holder 30.

[0028] like Figure 1 and Figure 2 As shown, the dust cap body 20 is made of carbon fiber or aramid fiber, and its inner wall is covered with a damping adhesive layer.

[0029] It should be noted that by replacing traditional paper or plastic dust caps with carbon fiber or aramid fiber, they have the advantages of reducing vibration mass and improving high-frequency response sensitivity. At the same time, they can enhance the resistance to deformation and prevent the dust cap from denting or cracking after long-term use. The material thickness is controlled at 0.05mm-0.2mm, and the edge and the connection with the diaphragm are rounded (R=0.3mm-0.5mm) to reduce stress concentration. A damping adhesive layer is attached to the inner layer of the dust cap body 20, which can suppress high-frequency standing waves and resonance, reduce distortion, and enhance the vibration coupling consistency between the dust cap body 20 and the diaphragm. The thickness of the damping layer accounts for 1 / 3-1 / 2 of the total thickness of the dust cap. It is fixed by dispensing or hot pressing process to avoid large-area pasting affecting the degree of freedom of vibration.

[0030] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A vehicle loudspeaker with a dust cap, comprising a frame (10), a dust cap body (20), and a mounting bracket (30), wherein the dust cap body (20) is placed above the frame (10) and fixed by the mounting bracket (30), characterized in that: The basin stand (10) is fixedly connected to an assembly groove (11) on its periphery. The assembly groove (11) has several through holes (12) on the side away from the basin stand (10). A magnetic control component (40) is installed in the through hole (12). The card holder (30) is inserted into the assembly groove (11). The card holder (30) has several storage slots (31) on the side near the through hole (12). A stop block (32) is provided inside the storage slot (31). A permanent magnet (33) is fixedly connected to the stop block (32). The permanent magnet (33) is magnetically attracted to the magnetic control component (40), and the permanent magnet (33) abuts against the side wall of the through hole (12).

2. The vehicle speaker with a dust cap according to claim 1, characterized in that, The inner wall of the assembly groove (11) is fixedly connected to a metal sheet (13), and a permanent magnet (34) that magnetically attracts the metal sheet (13) is fixedly connected to one side of the card holder (30).

3. The vehicle speaker with a dust cap according to claim 1, characterized in that, The magnetic control assembly (40) includes a circular turntable (41) rotatably connected to the through hole (12). A knob (42) is fixedly connected to one side of the circular turntable (41), and permanent magnet three (43) and permanent magnet four (44) are fixedly connected to the other side. The permanent magnet three (43) is magnetically attracted to the permanent magnet one (33).

4. The vehicle speaker with a dust cap according to claim 3, characterized in that, The permanent magnets three (43) and four (44) have opposite magnetic poles on the side closest to the card holder (30).

5. The vehicle speaker with a dust cap according to claim 1, characterized in that, The dust cap body (20) is made of carbon fiber or aramid fiber, and its inner wall is covered with a damping adhesive layer.

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