A bone conduction vibrator

Abstract

The present invention relates to a bone conduction vibrator, comprising a U-cup and a U-cup ring, wherein a bass vibration plate is fixedly arranged on the outer edge of the upper end of the U-cup ring, a step is arranged on the inner side of the upper end of the U-cup, a magnet is fixedly arranged on the inner bottom plate of the U-cup, a voice coil is arranged at the outer edge of the magnet, a washer is fixedly arranged above the magnet, a fixed gap exists between the voice coil and the washer, a treble vibration plate is arranged at the step of the U-cup, a connecting plate is arranged in the middle of the treble vibration plate, an umbrella-shaped plastic part is fixedly arranged below the treble vibration plate, a side of the umbrella-shaped plastic part close to the washer is fixedly connected to the voice coil, an axis core protrudes upward from the upper surface of the umbrella-shaped plastic part, the treble vibration plate is fixedly arranged with the umbrella-shaped plastic part, a plastic ring is further arranged on the axis core above the connecting plate, the end of the plastic ring away from the treble vibration plate is fixedly connected to the bass vibration plate, a fan-shaped plastic part is fixedly arranged on the upper end of the axis core extending out of the bass vibration plate, a single-sided circuit board is arranged on the umbrella-shaped plastic part, and the voice coil is electrically connected to the single-sided circuit board.

Description

Technical Field

[0001] The present invention relates to the technical field of loudspeakers, and more specifically, to a bone conduction vibrator. Background Art

[0002] A speaker is a transducer device that converts electrical signals into sound signals. The performance of a speaker has a great impact on the sound quality. The speaker is the weakest device in audio equipment, but it is the most important component for sound effects. There are many types of speakers, and the prices vary greatly. Audio power vibrates the cone or diaphragm through electromagnetic, piezoelectric or electrostatic effects, and resonates (resonates) with the surrounding air to produce sound. Low-end plastic speakers have no sound quality because of their thin cabinets and inability to overcome resonance (some well-designed plastic speakers are far better than inferior wooden speakers); wooden speakers reduce the sound coloration caused by cabinet resonance, and the sound quality is generally better than plastic speakers. Usually, multimedia speakers are dual-unit two-way design, with a smaller speaker responsible for the output of mid-high frequencies, and the other larger speaker responsible for the output of mid-bass frequencies.

[0003] Bone conduction headphones are a type of sound-generating device used in sound-generating devices such as speakers. However, existing bone conduction headphones are attached to the bones next to the ears. In order to adapt to the head shapes of different users, a fan-shaped plastic part is required for fitting. When fitting, it is necessary to press down on the inside of the bone conduction vibrator. When the traditional bone conduction vibrator is pressed down, the internal sound cavity, that is, the internal washer and the voice coil are relatively close. However, when the sound cavity changes, it will definitely affect the sound quality. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a bone conduction vibrator in view of the above-mentioned defects of the prior art.

[0005] The technical solution adopted by the present invention to solve its technical problem is:

[0006] A bone conduction vibrator is constructed, including a U cup and a U cup ring, the U cup ring is cylindrical and a bass vibration sheet is fixedly arranged on the outer edge of the upper end, the U cup is a barrel-shaped type with an opening upward and a step is arranged on the inner side of the upper opening end, a magnet is fixedly arranged on the bottom plate inside the U cup, a voice coil is arranged at the outer edge of the magnet, a washer is fixedly arranged above the magnet, a fixed gap exists between the voice coil and the washer, and the gap is a sound cavity, a treble vibration sheet is arranged at the step of the U cup, a connecting plate is arranged in the middle of the treble vibration sheet, an umbrella-shaped plastic part is fixedly arranged below the treble vibration sheet, a side of the umbrella-shaped plastic part close to the washer is fixedly connected to the voice coil, and a convex upwardly extending upper surface of the umbrella-shaped plastic part An axis core and a first through hole matching the axis core are provided on the connecting plate, and the treble vibration plate is fixedly provided on the umbrella-shaped plastic part through the first through hole and the axis core of the umbrella-shaped plastic part. A plastic ring is also provided on the axis core above the connecting plate, and the end of the plastic ring away from the treble vibration plate is fixedly connected to the bass vibration plate. A fan-shaped plastic part is fixedly provided on the upper end of the bass vibration plate extending out of the axis core, and a groove is provided on the umbrella-shaped plastic part, and a single-sided circuit board is fixedly provided in the groove. A square hole is also provided on the upper surface of the umbrella-shaped plastic part away from the groove, and the voice coil is electrically connected to the single-sided circuit board through the square hole, and an OK line is provided on the single-sided circuit board toward the outside of the U-cup ring and is electrically connected to the OK line.

[0007] Furthermore, the U-cup ring is connected to the bass vibration plate by laser welding, and the bass vibration plate and the treble vibration plate are provided with a plurality of glue holes on the two end surfaces near the plastic ring, and the bass vibration plate, the plastic ring and the treble vibration plate are fixed by glue in the glue holes, and the contact part between the treble vibration plate and the step of the U-cup is provided with a plurality of glue holes, and the treble vibration plate is fixed to the step of the U-cup ring by glue in the plurality of glue holes, the U-cup and the magnet are fixedly connected by glue dispensing, the magnet and the washer are fixedly connected by glue dispensing, the voice coil and the umbrella-shaped plastic part are fixedly connected by glue dispensing, and the fan-shaped plastic part and the shaft core are fixedly connected by glue.

[0008] Furthermore, a boss having the same size as the connecting plate is provided at the connection between the umbrella-shaped plastic part and the tweeter vibration plate, so as to increase the bonding area during assembly and glue dispensing, thereby increasing firmness and toughness.

[0009] Furthermore, the treble vibration plate is made of 304 micro-magnetic high-toughness stainless steel and has a thickness of 0.1MM. The bass vibration plate is a spiral structure with a certain elasticity. The bass vibration plate is made of 301 high-hardness and high-toughness magnetic stainless steel and has a thickness of 0.15MM.

[0010] Furthermore, the U-cup ring is made of non-magnetic stainless steel.

[0011] Furthermore, the bass vibration sheet is provided with a through hole for installing the OK wire.

[0012] The beneficial effect of the present invention is that: the present invention arranges a bass vibration plate, and fixes the bass vibration plate to the U-cup ring. When the treble vibration plate fixedly connected to the step of the U-cup is subjected to downward pressure from the fan-shaped plastic part, the fan-shaped plastic part pushes the shaft core on the umbrella-shaped plastic part downward, and the umbrella-shaped plastic part simultaneously displaces the bass vibration plate and the treble vibration plate downward under the elastic force, and drives the U-cup downward. At the same time, the interval between the voice coil fixed under the umbrella-shaped plastic part and the magnet fixed at the bottom of the U-cup and the washer above the magnet is always consistent, that is, the sound cavity is always consistent, that is, when the fan-shaped plastic part is pushed, the sound cavity remains unchanged and the sound quality remains unchanged. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work:

[0014] Figure 1 is a front cross-sectional view of a bone conduction vibrator provided by the present invention;

[0015] Figure 2 It is a structural schematic diagram of a bone conduction vibrator provided by the present invention;

[0016] Figure 3 It is a structural schematic diagram of a voice coil in a bone conduction vibrator provided by the present invention;

[0017] Figure 4 It is a schematic diagram of the structure of a magnet in a bone conduction vibrator provided by the present invention;

[0018] Figure 5 It is a top view of an umbrella-shaped plastic part in a bone conduction vibrator provided by the present invention;

[0019] Figure 6 This is a front view of an umbrella-shaped plastic part in a bone conduction vibrator provided by the present invention;

[0020] Figure 7 It is a structural schematic diagram of a U-cup ring in a bone conduction vibrator provided by the present invention;

[0021] Figure 8 It is a structural schematic diagram of a U cup in a bone conduction vibrator provided by the present invention;

[0022] Fig. 9 It is a structural schematic diagram of a plastic ring in a bone conduction vibrator provided by the present invention;

[0023] Fig.10 It is a top view of a bass vibration piece in a bone conduction vibrator provided by the present invention;

[0024] Fig.11 It is a structural schematic diagram of a fan-shaped plastic part in a bone conduction vibrator provided by the present invention;

[0025] Fig.12 It is a top view of a high-pitched vibration piece in a bone conduction vibrator provided by the present invention;

[0026] Fig.13 It is a structural schematic diagram of a single-sided circuit board in a bone conduction vibrator provided by the present invention.

[0027] In the figure: 1-washer; 2-OK line; 3-voice coil; 4-magnet; 5-umbrella-shaped plastic part; 501-axis core; 502-boss; 6-U cup ring; 7-U cup; 701-step; 8-plastic ring; 9-bass vibration plate; 10-fan-shaped plastic part; 11-treble vibration plate; 1101-connecting board; 1102-first through hole; 12-single-sided circuit board. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the following will be described clearly and completely in combination with the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are partial embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the protection scope of the present invention.

[0029] A bone conduction vibrator comprises a U cup 7 and a U cup ring 6, wherein the U cup ring 6 is cylindrical and a bass vibration plate 9 is fixedly arranged on the outer edge of the upper end, the U cup 7 is a barrel-shaped type with an opening upward and a step 701 is arranged on the inner side of the upper opening end, a magnet 4 is fixedly arranged on the inner bottom plate of the U cup 7, a voice coil 3 is arranged on the outer edge of the magnet 4, a washer 1 is fixedly arranged above the magnet 4, a fixed gap is provided between the voice coil 3 and the washer 1, and the gap is a sound cavity, a treble vibration plate 11 is arranged on the step 701 of the U cup 7, and a connecting plate 1101 is arranged in the middle of the treble vibration plate 11 An umbrella-shaped plastic part 5 is fixedly arranged below the treble vibration plate 11. The side of the umbrella-shaped plastic part 5 close to the washer 1 is fixedly connected to the voice coil 3. An axis core 501 protrudes upward from the upper surface of the umbrella-shaped plastic part 5. A first through hole 1102 matching the axis core 501 is arranged on the connecting plate 1101. The treble vibration plate 11 is fixedly arranged on the umbrella-shaped plastic part 5 through the first through hole 1102 and the axis core 501 of the umbrella-shaped plastic part 5. A plastic ring 8 is also arranged on the axis core 501 above the connecting plate 1101. The plastic ring 8 is fixed at one end away from the treble vibration plate 11. The bass vibration sheet 9 is connected, the shaft core 501 extends out of the upper end of the bass vibration sheet 9, and a fan-shaped plastic part 10 is fixedly arranged. A groove is arranged on the umbrella-shaped plastic part 5, and a single-sided circuit board 12 is fixedly arranged in the groove. A square hole is also arranged on the upper surface of the umbrella-shaped plastic part 5 away from the groove. The voice coil is electrically connected to the single-sided circuit board 12 through the square hole. The single-sided circuit board 12 is provided with an OK line 2 outside the U-cup ring 6 and is electrically connected to the OK line 2. The present invention arranges the bass vibration sheet 9 and fixes the bass vibration sheet 9 to the U-cup ring 6. When fixedly connected to the table of the U-cup 7 When the treble vibration plate 11 at step 701 is subjected to downward pressure from the fan-shaped plastic part 10, the fan-shaped plastic part 10 pushes the shaft core 501 on the umbrella-shaped plastic part 5 downward, and the umbrella-shaped plastic part 5 simultaneously moves the bass vibration plate 9 and the treble vibration plate 11 downward under the elastic force, and drives the U cup 7 to move downward. At the same time, the interval between the voice coil 3 fixed under the umbrella-shaped plastic part 5 and the magnet 4 fixed at the bottom of the U cup 7 and the washer 1 above the magnet 4 is always consistent, that is, the sound cavity is always consistent, that is, when the fan-shaped plastic part 10 is pushed, the sound cavity remains unchanged and the sound quality remains unchanged.

[0030] The U-cup ring 6 is connected to the bass vibration plate 9 by laser welding, and a plurality of glue dispensing holes are provided on the two end surfaces of the bass vibration plate 9 and the treble vibration plate 11 near the plastic ring 8, and the bass vibration plate 9, the plastic ring 8 and the treble vibration plate 11 are fixed by dispensing glue in the glue dispensing holes, a plurality of glue dispensing holes are provided on the contact part between the treble vibration plate 11 and the step 701 of the U-cup 7, and the treble vibration plate 11 is fixed to the step 701 of the U-cup ring 6 by dispensing glue in the plurality of glue dispensing holes, the U-cup 7 is fixedly connected to the magnet 4 by dispensing glue, the magnet 4 is fixedly connected to the washer 1 by dispensing glue, the voice coil 3 is fixedly connected to the umbrella-shaped plastic part 5 by dispensing glue, and the fan-shaped plastic part 10 is fixedly connected to the shaft core 501 by glue.

[0031] A boss 502 having the same size as the connecting plate 1001 is provided at the connection between the umbrella-shaped plastic part 5 and the tweeter vibration plate 11, so as to increase the bonding area during assembly and glue dispensing, thereby increasing firmness and toughness.

[0032] The material of the treble vibration plate 11 is 304 micro-magnetic high-toughness stainless steel and has a thickness of 0.1MM. The bass vibration plate 9 is a spiral structure with a certain elasticity. The material of the bass vibration plate 9 is 301 high-hardness and high-toughness magnetic stainless steel and has a thickness of 0.15MM.

[0033] The U cup ring 6 is made of non-magnetic stainless steel.

[0034] The bass vibration plate 9 is provided with a through hole 91 for installing the OK wire 2 . The through hole 91 is provided to facilitate the OK wire 2 to pass through the bass vibration plate 9 and outside the U-cup ring.

[0035] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the appended claims of the present invention.

Claims

1. A bone conduction vibrator, characterized in that: It includes a U cup and a U cup ring, the U cup ring is cylindrical and a bass vibration plate is fixedly arranged on the outer edge of the upper end, the U cup is a barrel-shaped opening upward and a step is arranged on the inner side of the upper opening end, a magnet is fixedly arranged on the bottom plate inside the U cup, a voice coil is arranged on the outer edge of the magnet, a washer is fixedly arranged above the magnet, a fixed gap exists between the voice coil and the washer, and the gap is a sound cavity, a treble vibration plate is arranged on the step of the U cup, a connecting plate is arranged in the middle of the treble vibration plate, an umbrella-shaped plastic part is fixedly arranged below the treble vibration plate, and the The side of the umbrella-shaped plastic part close to the washer is fixedly connected to the voice coil, an axis core protrudes upward from the upper surface of the umbrella-shaped plastic part, a first through hole matching the axis core is provided on the connecting plate, the treble vibration plate is fixedly arranged on the umbrella-shaped plastic part through the first through hole and the axis core of the umbrella-shaped plastic part, a plastic ring is also provided on the axis core above the connecting plate, the end of the plastic ring away from the treble vibration plate is fixedly connected to the bass vibration plate, a fan-shaped plastic part is fixedly arranged on the upper end of the axis core extending out of the bass vibration plate, a groove is provided on the umbrella-shaped plastic part, A single-sided circuit board is fixedly arranged in the groove, a square hole is further arranged on the upper surface of the umbrella-shaped plastic part away from the groove, the voice coil is electrically connected to the single-sided circuit board through the square hole, an OK line is arranged on the single-sided circuit board toward the outside of the U-cup ring and is electrically connected to the OK line; the U-cup ring is connected to the bass vibration plate by laser welding, a plurality of glue holes are arranged on the two end surfaces of the bass vibration plate and the treble vibration plate close to the plastic ring, and the bass vibration plate, the plastic ring and the treble vibration plate are fixed by glue in the glue holes, the treble vibration plate is connected to the U-cup The contact part at the step is provided with a plurality of glue dispensing holes, and the tweeter vibration plate is fixed to the step of the U-cup ring by dispensing glue in the plurality of glue dispensing holes, the U-cup and the magnet are fixedly connected by dispensing glue, the magnet and the washer are fixedly connected by dispensing glue, the voice coil and the umbrella-shaped plastic part are fixedly connected by dispensing glue, and the fan-shaped plastic part and the shaft core are fixedly connected by glue; a boss consistent with the size of the connecting plate is provided at the connection between the umbrella-shaped plastic part and the tweeter vibration plate, so as to increase the bonding area during assembly and dispensing glue, and increase the firmness and toughness.

2. A bone conduction vibrator according to claim 1, characterized in that: The treble vibration plate is made of 304 micro-magnetic high-toughness stainless steel and has a thickness of 0.1MM. The bass vibration plate is a spiral structure with elasticity. The bass vibration plate is made of 301 high-hardness and high-toughness magnetic stainless steel and has a thickness of 0.15MM.

3. A bone conduction vibrator according to claim 1, characterized in that: The U cup ring is made of non-magnetic stainless steel.

4. A bone conduction vibrator according to claim 1, characterized in that: The bass vibration sheet is provided with a through hole for installing an OK line.

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