CN210781336U

CN210781336U - Chain type double-lamination elastic sheet bone conduction loudspeaker

Info

Publication number: CN210781336U
Application number: CN202020006316.2U
Authority: CN
Inventors: 陈广标
Original assignee: Shenzhen Fu Tong Ying Technology Co ltd
Current assignee: Shenzhen Fu Tong Ying Technology Co ltd
Priority date: 2020-01-03
Filing date: 2020-01-03
Publication date: 2020-06-16
Anticipated expiration: 2030-01-03

Abstract

The utility model belongs to bone conduction audio frequency propagates the field, especially a two lamination shell fragment bone conduction loudspeaker of chain type. The magnetic part comprises a U-shaped iron 1, a magnet 2 and a washer sheet 3, wherein the magnet 2 is attached to the lower surface in a groove of the U-shaped iron, the washer sheet 3 is attached to the upper surface of the magnet 2, and the magnet 2 and the washer sheet 3 are both positioned at the bottom of the U-shaped iron 1; the double-laminated vibration component part comprises a voice coil 4, a voice coil bracket 5, a main elastic sheet 6, a main single-sheet bracket 7 and a slave elastic sheet 8. The utility model discloses an adopt the two stromatolite shell fragment structural design characteristics of chain type to superpose the main shell fragment of product and follow the shell fragment, effect and reaction force drive through the principal and subordinate shell fragment to promote the amplitude of osteoacusis loudspeaker, thereby the effectual F0 value that reduces the product audio frequency produces better low frequency effect, promotes the sensitivity of product simultaneously.

Description

Chain type double-lamination elastic sheet bone conduction loudspeaker

Technical Field

The utility model relates to a bone conduction audio frequency propagates technical field, especially relates to a bone conduction loudspeaker of two lamination shell fragment structural design of chain type.

Background

Most of the sound we hear is due to the sound waves compressing the air. The sound waves pass through the compressed air, which drives the inner eardrum to the cochlea. Sound can also be transmitted to the ossicles of the ear through direct vibration of the skull and finally to the cochlea. Most of earphones in the market at present are manufactured by inserting a loudspeaker into human ears or manufacturing the earphones into an earmuff type, so that firstly eardrums of the human ears are easily damaged, secondly, when the earphones are directly inserted into the human ears when the earphones are used, hearing is greatly reduced after the earphones are worn for a long time, and thirdly, the ears of people cannot be liberated.

Bone conduction is to transmit sound to the inner ear through the skull, and a bone conduction vibrator horn is a converter and can directly convert an electronic signal into a mechanical signal. The bone conduction vibrator horn is widely applied to wearable equipment in the audio frequency field so as to meet the requirements of people on sound under specific conditions. The bone conduction vibrator horn transmits sound through vibration instead of applying pressure to air around the bone conduction vibrator horn, audio signals are transmitted clearly, the rigidity requirement of a patient with poor hearing can be met, and the patient with poor hearing or a patient with deafness can hear wonderful sound again.

Nowadays, people have higher and higher requirements on sound, higher and higher requirements on the form and sound of a product, the sound quality of the product is expected to be better, the sound is more sensitive, the power consumption is lower, the current bone conduction cannot be as smooth as the sound film of the traditional loudspeaker due to the structure and material characteristics of the product, the designed bone conduction loudspeaker product lacks the low-frequency output of the sound, and the F0 value is higher. The product can not meet the requirements of people, so the sound to be improved is stronger and stronger, and therefore, a chain type double-laminated shrapnel bone conduction loudspeaker is provided.

SUMMERY OF THE UTILITY MODEL

The utility model provides a two lamination shell fragment osteoacusis loudspeaker of chain type has solved the general higher problem of current osteoacusis loudspeaker F0 value, through double-deck shell fragment chain connection, with piling up of audio frequency with sound amplification and change F0 frequency, reaches the poor problem of bass effect of solving loudspeaker.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a chain type double-lamination elastic sheet bone conduction loudspeaker comprises a magnet part, wherein the magnet part comprises a U-shaped iron 1, a magnet 2 and a washer piece 3, the magnet 2 is mounted on the lower surface of the U-shaped iron 1 in a groove in an attached mode, the washer piece 3 is mounted on the upper surface of the magnet 2 in an attached mode, the magnet 2 is located between the washer piece 3 and the U-shaped iron 1, the chain type double-lamination vibration assembly part comprises a voice coil 4, a voice coil bracket 5, a main elastic sheet 6, a main elastic sheet bracket 7 and a slave elastic sheet 8, the voice coil 4 is placed on a positioning groove 51 of the voice coil bracket 5 and is bonded through glue, the main elastic sheet 6 and the main elastic sheet bracket 7 can be bonded and fixed firmly through injection molding or laser spot welding, the main elastic sheet 6 and the slave elastic sheet 8 are positioned through a central square positioning hole, and then the main elastic sheet 6 and the slave elastic sheet 8 are welded and fixed firmly through laser spot welding, the opening 102 of the magnet part is placed in the lower groove 71 of the chain type double stack vibrating assembly part and then fixed by glue by a ring of glue along the joint.

Further, a fixing groove is formed in the middle of the lower surface of the U-shaped iron 1, the magnet is attached to the fixing groove, the washer sheet is bonded to the surface of the magnet, and a closed loop is formed among the U-shaped iron 1, the magnet 2 and the washer sheet 3.

Specifically, the main elastic sheet is made of stainless steel materials, the thickness of the main elastic sheet is 0.08-0.15 mm, and the thickness of the auxiliary elastic sheet is 0.15-0.3 mm.

In addition, a PCB adapter plate is attached to the central surface of the slave elastic sheet, and two outgoing lines of the voice coil can penetrate through the central line slotting position of the main elastic sheet, so that the phenomenon that the two outgoing lines are interfered by the elastic sheet to cause line breakage is avoided.

Preferably, the main elastic sheet and the auxiliary elastic sheet are fixed through laser spot welding.

The working principle is that audio signals pass through the voice coil, so that the voice coil generates a variable electromagnetic field, and the variable electromagnetic field is attracted with the fixed magnet part, so that vibration work is generated.

The utility model has the advantages that:

1. by adopting the structural design characteristic of the chain type double-elastic-sheet lamination, the vibration amplitude of the product can be increased, so that the sensitivity and the bass effect of sound are effectively improved, and the bass of the product is thicker, heavier and more comfortable;

2. by adopting the runway-type appearance design, the design space of the elastic sheets is effectively lengthened, so that the chain connection of the double elastic sheets is realized.

The utility model discloses an adopt two lamination shell fragment structural design characteristics, can effectual F0 value that reduces this audio frequency product, the sensitivity of effectual improvement sound and the effect of bass let the bass of product more massive and comfortable, reach the advantage that reduces the consumption and improve tone quality simultaneously.

Drawings

FIG. 1 is an exploded view of the structure of the present invention;

FIG. 2 is a schematic view of the assembled structure of the present invention;

FIG. 3 is an exploded view of the magnet structure of the present invention;

fig. 4 is a schematic view of a part of the structure of the laminated elastic sheet vibration assembly of the present invention.

In the figure: 1U-shaped iron, 101 fixing grooves, 102 positioning grooves, 2 magnets, 3 washer sheets, 4 voice coils, 5 voice coil supports, 51 voice coil positioning grooves, 52 center square columns, 6 main elastic sheets, 61 main elastic sheet outer rings, 7 main elastic sheet supports, 71U-shaped iron positioning grooves and 8 auxiliary elastic sheets

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-4, a chain type double-lamination elastic sheet bone conduction speaker comprises a magnet part, wherein the magnet part comprises a U-shaped iron 1, a magnet 2 and a washer sheet 3, the magnet 2 passes through a positioning groove on the lower surface of the U-shaped iron 1, glue is dispensed to place the magnet 2 in the positioning groove of the U-shaped iron 1, the washer sheet 3 is placed on the other surface of the magnet and is adhered by the glue, the chain type double-lamination vibration assembly comprises a voice coil 4, a voice coil bracket 5, a main elastic sheet 6, a main elastic sheet bracket 7 and a slave elastic sheet 8, the voice coil 4 is placed on the positioning groove 51 of the voice coil bracket 5 and is adhered by the glue, the main elastic sheet 6 and the main elastic sheet bracket 7 can be adhered and fixed firmly in an injection molding or laser spot welding mode, the main elastic sheet 6 and the slave elastic sheet 8 are positioned through a square positioning hole in the center, and then the main elastic sheet 6 and the slave elastic sheet 8, the central square column 52 of the voice coil bracket 5 is overlapped with the central square hole 61 of the main elastic sheet 6 and penetrates through the root part of the central square column to be fixed by glue, the opening part 102 of the magnet part is placed in the lower groove 71 of the chain type double-lamination vibration component part, and then a circle of glue is applied to the joint part by the glue for fixation.

U type iron 1's interior bottom is equipped with fixed slot 101, magnet 2 laminating is installed in fixed slot 101, china department piece 3 is through bonding at 2 surfaces of magnet, and U type iron 1, form closed circuit between magnet 2 and the china department piece 3, main shell fragment 6 adopts stainless steel material to make, the thickness of material is between 0.08-0.15 millimeter, adopt stainless steel material to make from shell fragment 8, the thickness of material is between 0.15-0.3 millimeter, both fix a position through central square hole, connect fixedly through the mode of laser spot welding, can place a switching PCB board on the central plane of shell fragment 8, make things convenient for the voice coil loudspeaker voice coil lead wire to fix on PCB, glue on line and prevent the broken string.

The fixing of the main elastic sheet 6 and the elastic sheet support 7 can be divided into two modes, the first mode is to make the elastic sheet support 7 into a metal material, the outer ring 61 of the main elastic sheet 6 and the outer ring 71 of the elastic sheet support 7 are positioned in an overlapping mode, then the main elastic sheet 6 and the elastic sheet support 7 are fixed in a laser spot welding mode, the second mode is to make the elastic sheet support 7 into a plastic material, and the main elastic sheet 6 is fixed in the plastic support body in an injection molding mode to be fixed.

The opening 102 of the magnet part is placed in the lower groove 71 of the chain type double stack vibrating assembly part and then fixed by glue by a ring of glue along the joint.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Example (b): because the voice coil 4 is placed in the magnetic field of the magnet part, when the current generated by the audio signal passes through the voice coil 4, the voice coil 4 can generate a variable magnetic field due to the change of the current, thereby generating a working principle that like magnetic fields generated by the magnet part attract each other and opposite magnetic fields repel each other, and the voice coil vibrates due to the interaction, the chain type double-lamination shrapnel structure is adopted, so that the different frequencies of two shrapnels can be superposed and combined to generate the vibration of another frequency, the F0 value of the product is reduced, the design is simple and quick, the amplitude of the product is increased by adopting the structural design characteristics of the lamination shrapnel structure, the sensitivity and the bass effect of the product are effectively improved, the bass of the product is thicker and more comfortable, and the frequency can be amplified and corrected again through the change of the sound adjusting plate, so as to achieve the advantages.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a two lamination shell fragment bone conduction loudspeaker of chain type, includes two parts of two stack vibration subassembly parts of magnet part and chain type, its characterized in that, the magnet part includes U type iron (1), magnet (2) and china department piece (3), magnet (2) are installed in the laminating of the lower surface in U type iron (1) inslot, china department piece (3) are installed in the laminating of the upper surface of magnet (2), and magnet (2) are located between china department piece (3) and U type iron (1), two lamination vibration subassembly parts of chain type include voice coil loudspeaker voice coil (4), voice coil loudspeaker voice coil support (5), main shell fragment (6), main shell fragment support (7) and follow shell fragment (8), will voice coil loudspeaker voice coil (4) are placed on the constant head tank of voice coil loudspeaker voice coil support (5), bond through glue, main shell fragment (6) and main shell fragment support (7) accessible mould plastics or the mode bonding of laser spot welding firmly, the main elastic sheet (6) and the auxiliary elastic sheet (8) are positioned through a square positioning hole in the center, then the main elastic sheet (6) and the auxiliary elastic sheet (8) are firmly welded and fixed in a laser spot welding mode, the opening part (102) of the magnet part is placed in a lower groove (71) of a main elastic sheet support of the chain type double-laminated vibration assembly part, and then a circle of glue is applied to the joint for fixation.

2. The chain type double-laminated spring plate bone conduction loudspeaker according to claim 1 is characterized in that the U-shaped iron (1) magnet (2) and the washer piece (3) are designed in a track type mode, a fixing groove (101) is formed in the middle of the lower surface of the U-shaped iron (1), the magnet (2) is attached to the fixing groove (101), the washer piece (3) is bonded to the surface of the magnet (2), the magnet (2) is arranged between the U-shaped iron (1) and the washer piece (3), and a closed magnetic loop is formed among the U-shaped iron (1), the magnet (2) and the washer piece (3).

3. The chain type double-laminated spring plate bone conduction loudspeaker according to claim 1, wherein the main spring plate (6) adopts a double-ring design structure, the thickness of the main spring plate (6) is 0.08-0.15 mm stainless steel, the slave spring plate (8) also adopts a double-ring design structure, the thickness of the slave spring plate (8) is 0.15-0.3 mm stainless steel, the voice coil (4) and the voice coil support (5) are both in a racetrack design, so that the double-ring design of the main spring plate (6) and the slave spring plate (8) is facilitated, the voice coil (4) is placed on a positioning groove of the voice coil support (5) and is bonded through glue, the main spring plate (6) and the master spring plate support (7) can be firmly bonded through injection molding bonding or laser spot welding, the main spring plate (6) and the slave spring plate (8) position the master spring plate and the slave spring plate through a central square positioning hole, then the main elastic sheet (6) and the auxiliary elastic sheet (8) are firmly welded and fixed in a laser spot welding mode.

4. The chain type double laminated spring plate bone conduction speaker as claimed in claim 1, wherein the whole body adopts a track type design, the opening (102) of the magnet part is placed in the lower groove (71) of the chain type double laminated vibration component part, and then a circle of glue is applied along the joint by glue to fix the magnet part, so as to form the complete bone conduction speaker.