CN210202080U

CN210202080U - External magnetic bone conduction vibrator

Info

Publication number: CN210202080U
Application number: CN201921095546.4U
Authority: CN
Inventors: Dayun Zhu; 朱达云
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-07-12
Filing date: 2019-07-12
Publication date: 2020-03-27
Anticipated expiration: 2029-07-12

Abstract

The utility model belongs to the technical field of loudspeakers, in particular to an external magnetic bone conduction vibrator, which comprises a antimagnetic cover, T iron, an annular magnet, a voice coil, a conductive elastic wave and a conductive sheet; the anti-magnetic cover is internally provided with an accommodating space, the T iron is arranged in the accommodating space, the annular magnet is sleeved on the T iron, the top of the annular magnet is provided with a washer, a magnetic gap is formed between the inner side wall of the washer and the outer side wall of a column core of the T iron, the conductive elastic wave is connected to the anti-magnetic cover, the voice coil is connected to the conductive elastic wave and is electrically connected with the conductive elastic wave, one end of the voice coil extends into the magnetic gap, and the conducting piece is connected with the voice coil and is positioned outside the accommodating space; the annular magnet is used for enhancing the magnetic field intensity in a mode of increasing the volume of the magnet, so that the conversion efficiency is improved, and the sensitivity is improved; meanwhile, the conductive elastic wave is electrically connected with the outside, so that the noise loss of the external magnetic bone conduction vibrator is reduced, the stability is improved, the production process is simplified, and the production cost is reduced.

Description

External magnetic bone conduction vibrator

Technical Field

The utility model belongs to the technical field of the speaker, especially, relate to an external magnetic type bone conduction oscillator.

Background

The sound conduction mode comprises air vibration and bone conduction; wherein, the bone conduction is transmitted to the auditory nerve of the human through the skin, subcutaneous tissue and skeleton of the human, thereby leading the human to hear the sound; the design mode that generally uses single magnet in the osteoacusis oscillator of prior art, the magnetic field intensity in this type osteoacusis oscillator is not enough, and the sensitivity and the amplitude of voice coil loudspeaker voice coil can not satisfy the demand, lead to the transmission effect of osteoacusis oscillator not good, in order to reach the demand, strengthens magnetic field intensity through the mode that increases power often, leads to the osteoacusis oscillator to consume energy more.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an external magnet formula bone conduction oscillator aims at solving among the prior art because of the inside magnetic field intensity of bone conduction oscillator is not enough, and leads to the sensitivity of voice coil loudspeaker voice coil and the technical problem that the amplitude descends.

In order to achieve the above object, an embodiment of the present invention provides an external magnetic bone conduction vibrator, which includes a antimagnetic hood, a T-iron, a ring magnet, a voice coil, a conductive elastic wave and a conductive sheet; be equipped with accommodation space in the antimagnetic cover, T iron is located in the accommodation space, the annular magnet cover is located on the T iron, annular magnet's top is equipped with the magnificent department, the inside wall of magnificent department with form the magnetic gap between the lateral wall of the post core of T iron, electrically conductive bullet ripples connect in antimagnetic cover is last, the voice coil loudspeaker voice coil connect in on the electrically conductive bullet ripples and with electrically conductive bullet ripples electricity is connected, the one end of voice coil loudspeaker voice coil stretches into in the magnetic gap, the conduction piece with the voice coil loudspeaker voice coil is connected and is located outside the accommodation space.

Optionally, the antimagnetic cap includes a small diameter cylinder, a large diameter cylinder, and a connection ring connected between the small diameter cylinder and the large diameter cylinder, and the conductive elastic wave is connected to an open end of the large diameter cylinder.

Optionally, the external magnetic bone conduction vibrator further comprises a bracket; the support is connected to the antimagnetic cover, and the conductive elastic wave is connected to the support.

Optionally, the external magnetic bone conduction vibrator further comprises a first elastic sheet; one end of the first elastic sheet is connected to the antimagnetic cover, and the other end of the first elastic sheet is connected to the support.

Optionally, the external magnetic bone conduction vibrator further comprises a second elastic sheet; the second elastic sheet is connected with the voice coil and is positioned between the conductive elastic wave and the conductive sheet.

Optionally, a through hole penetrating through the T-iron is formed in the top of the T-iron.

Optionally, the external magnetic bone conduction vibrator further comprises a tuning net; and the tuning net is connected to the bottom of the T iron and covers the through hole.

Optionally, the external magnetic bone conduction vibrator further comprises a flexible circuit; the flexible circuit is electrically connected with the voice coil and penetrates through the through hole.

Optionally, the conductive elastic wave comprises an outer ring, an inner ring and a plurality of connecting portions uniformly connected between the outer ring and the inner ring, and at least one welding point for electrical connection is arranged on each of the outer ring and the inner ring.

Optionally, the external magnetic bone conduction vibrator further comprises a connecting piece and a circuit board; the connecting piece with electrically conductive bullet ripples is connected and both ends extend to respectively electrically conductive bullet ripples's relative both sides, the conducting strip is located outside the accommodation space and with the connecting piece is connected, the circuit board is located within the space and with the connecting piece is connected, the circuit board with voice coil loudspeaker voice coil fixed connection, just the circuit board with electrically conductive bullet ripples with the voice coil loudspeaker voice coil electricity is connected.

The embodiment of the utility model provides an above-mentioned one or more technical scheme in the external magnet formula bone conduction oscillator have one of following technological effect at least: the annular magnet is sleeved on the T iron, and the magnetic field intensity is enhanced by increasing the volume of the magnet by using the annular magnet, so that the conversion efficiency is improved, and the sensitivity is improved; the conductive elastic wave is connected with an external power supply, so that the voice coil is electrified, the voice coil vibrates in the magnetic gap to drive the conductive sheet to vibrate to transmit sound, the mode that a voice coil lead and the external power supply are electrified in the prior art is replaced, the production process is simplified, the production cost is reduced, the condition of breakage of the voice coil lead is reduced, the condition of sound loss of the external magnetic bone conduction vibrator is reduced, the stability is improved, the quality of the external magnetic bone conduction vibrator is improved, and the service life is prolonged.

In order to achieve the above object, an embodiment of the present invention provides an external magnetic bone conduction vibrator, which includes a antimagnetic hood, a T-iron, a ring magnet, a voice coil, a conductive elastic wave, a second elastic piece, a connecting piece, and a conductive piece; be equipped with accommodation space in the antimagnetic cover, T iron is located in the accommodation space, the annular magnet cover is located on the T iron, annular magnet's top is equipped with the magnificent department, the inside wall of magnificent department with form the magnetic gap between the lateral wall of the post core of T iron, the second shell fragment connect in antimagnetic cover is last, the connecting piece with the second shell fragment is connected and both ends extend to respectively the relative both sides of second shell fragment, the voice coil loudspeaker voice coil with the connecting piece is connected and is located within the accommodation space, the one end of voice coil loudspeaker voice coil stretches into in the magnetic gap, the conduction piece with the connecting piece is connected and is located outside the accommodation space, electrically conductive bullet ripples with the connecting piece is connected and is located the conduction piece with between the second shell fragment, electrically conductive bullet ripples with the voice coil loudspeaker voice coil electricity is connected.

The embodiment of the utility model provides an above-mentioned one or more technical scheme in the external magnet formula bone conduction oscillator have one of following technological effect at least: the annular magnet is sleeved on the T iron, and the magnetic field intensity is enhanced by increasing the volume of the magnet by using the annular magnet, so that the conversion efficiency is improved, and the sensitivity is improved; the conductive elastic wave is connected with an external power supply, so that the voice coil is electrified, the voice coil generates vibration in the magnetic gap to drive the conducting strip to vibrate to transmit sound, the mode that a voice coil lead is electrified with the external power supply in the prior art is replaced, the production process is simplified, the production cost is reduced, the condition of breakage of the voice coil lead is reduced, the condition of sound loss of the external magnetic bone conduction vibrator is reduced, the stability is improved, the quality of the external magnetic bone conduction vibrator is improved, and the service life is prolonged; the second elastic sheet is additionally arranged and is used for being connected with the inner side wall of the listening device, so that the connecting piece is more stable, the overall stability and reliability are improved, and the safety performance is good.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is a schematic structural diagram of an external magnetic bone conduction vibrator according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of an external magnetic bone conduction vibrator according to an embodiment of the present invention.

Fig. 3 is a schematic structural diagram of an external magnetic bone conduction vibrator according to an embodiment of the present invention.

Fig. 4 is a schematic structural diagram of an external magnetic bone conduction vibrator according to an embodiment of the present invention.

Fig. 5 is a schematic structural diagram of an external magnetic bone conduction vibrator according to an embodiment of the present invention.

Fig. 6 is a schematic structural diagram of an external magnetic bone conduction vibrator according to an embodiment of the present invention

Fig. 7 is a schematic structural diagram of an external magnetic bone conduction vibrator according to an embodiment of the present invention.

Fig. 8 is a schematic structural diagram of an external magnetic bone conduction vibrator according to an embodiment of the present invention.

Fig. 9 is a schematic structural diagram of an external magnetic bone conduction vibrator according to an embodiment of the present invention.

Fig. 10 is a schematic structural diagram of an external magnetic bone conduction vibrator according to an embodiment of the present invention.

Fig. 11 is a schematic structural diagram of a conductive elastic wave according to an embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

10-antimagnetic cover 11-accommodation space 12-small diameter cylinder

13-large diameter cylinder 14-connecting ring 20-T iron

21-through hole 30-ring magnet 31-washer

40-voice coil 50-conductive elastic wave 51-outer ring

52-inner ring 53-connecting part 60-conducting piece

70-magnetic gap 80-support 90-first elastic sheet

100-tuning net 110-flexible line 120-connecting piece

130-circuit board 140-second shell fragment.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to fig. 1-11 are exemplary and intended to be used to illustrate embodiments of the present invention, and should not be construed as limiting the invention.

In the description of the embodiments of the present invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which is only for convenience in describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element so indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the 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 embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as fixed or detachable connections or as an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the embodiments of the present invention can be understood by those skilled in the art according to specific situations.

Example one

In the present embodiment, as shown in fig. 1, an external magnetic bone conduction vibrator is provided, which includes a antimagnetic housing 10, a T-iron 20, a ring magnet 30, a voice coil 40, a conductive elastic wave 50, and a conductive sheet 60; be equipped with accommodation space 11 in the antimagnetic cover 10, T iron 20 is located in accommodation space 11, annular magnet 30 overlaps and locates on T iron 20, annular magnet 30's top is equipped with magnificent 31, form magnetic gap 70 between the inside wall of magnificent 31 and the lateral wall of the post core of T iron 20, electrically conductive bullet ripples 50 is connected on antimagnetic cover 10, voice coil 40 is connected on electrically conductive bullet ripples 50 and is connected with electrically conductive bullet ripples 50 electricity, the one end of voice coil 40 stretches into in magnetic gap 70, conducting strip 60 is connected with voice coil 40 and is located outside accommodation space 11.

In the embodiment of the present invention, the ring-shaped magnet 30 is sleeved on the T-shaped iron 20, and the ring-shaped magnet 30 is used to enhance the magnetic field strength by increasing the magnet volume, so as to improve the conversion efficiency and the sensitivity; electrically conductive bullet ripples 50 is connected with external power source for voice coil 40 circular telegram, voice coil 40 produce the vibration in magnetic gap 70 and drive conduction piece 60 vibration transmission sound, replace using the mode that voice coil loudspeaker voice coil lead wire and external power source carried on the circular telegram among the prior art, simplify production technology, reduction in production cost reduces the cracked condition of voice coil loudspeaker voice coil lead wire, reduces the condition that external magnetic bone conduction oscillator loses sound, improves stability, improves the quality of external magnetic bone conduction oscillator, increase of service life.

In the embodiment of the present invention, as shown in fig. 2, the antimagnetic cover 10 includes a small diameter cylinder 12, a large diameter cylinder 13, and a connection ring 14 connected between the small diameter cylinder 12 and the large diameter cylinder 13, and the conductive elastic wave 50 is connected to an open end of the large diameter cylinder 13; the outer diameter of the large-diameter cylinder 13 is larger than that of the small-diameter cylinder 12, the inner magnet and the annular outer magnet are both arranged in the small-diameter cylinder 12, the inner ring part of the connecting ring 14 is connected with the opening end of the small-diameter cylinder 12, the large-diameter cylinder 13 is connected to the outer circle part of the connecting ring 14, and the conductive elastic wave 50 is connected to the opening end of the large-diameter cylinder 13; the diameter cylinder, the large-diameter cylinder 13 and the connecting ring 14 are integrally formed, the structure is stable, processing and production are facilitated, the large-diameter cylinder 13 is arranged, the conductive elastic wave 50 is directly connected to the large-diameter cylinder 13 to be fixed, the structure is stable, and production is facilitated.

In the embodiment of the present invention, as shown in fig. 3, the external magnetic bone conduction vibrator further includes a bracket 80; the bracket 80 is connected to the antimagnetic cover 10, and the conductive elastic wave 50 is connected to the bracket 80; the sectional shape of the holder 80 in this embodiment is L-shaped, but is not limited to this shape; the voice coil 40 drives the conductive damper 50 to vibrate when vibrating, and the support 80 and the conductive damper 50 vibrate synchronously, so that the T-shaped iron 20 also vibrates along with the vibration of the voice coil 40 to generate a good bass effect; the bracket 80 may be made of plastic or metal material.

Further, a pad is arranged on the support 80, the pad is electrically connected with the conductive damper 50, and an external power supply is used for electrifying the conductive damper 50 through the pad.

In the embodiment of the present invention, as shown in fig. 4, the external magnetic bone conduction vibrator further includes a first elastic sheet 90; one end of the first elastic sheet 90 is connected to the antimagnetic cover 10, and the other end of the first elastic sheet 90 is connected to the bracket 80; when the voice coil 40 vibrates, the first elastic sheet 90, the conductive elastic wave 50 and the support 80 vibrate synchronously, so that the bass effect is further improved, and the tone quality is improved.

In the embodiment of the present invention, as shown in fig. 5, the external magnetic bone conduction vibrator further includes a second elastic sheet 140; the second elastic sheet 140 is connected with the voice coil 40 and is positioned between the conductive elastic wave 50 and the conductive sheet 60; the second elastic sheet 140 is connected with an external listening device, so that the stability of the conducting sheet 60 and the voice coil 40 is improved, the reliability of the bone conduction vibrator is improved, and the safety performance is good.

In the embodiment of the present invention, as shown in fig. 6, the top of the T-bar 20 is provided with a through hole 21 penetrating through the T-bar 20, and the through hole 21 has the following advantages: firstly, heat dissipation is carried out on the interior of the external magnetic bone conduction vibrator, so that the temperature of the interior of the external magnetic bone conduction vibrator is reduced when the external magnetic bone conduction vibrator works; and secondly, improving the low-frequency effect and reducing distortion, and reducing the deviation of the voice coil 40 and the conducting sheet 60 caused by the residual air flow inside the external magnetic bone conduction vibrator because the air flow generated by the vibration of the voice coil 40 and the conducting sheet 60 of the external magnetic bone conduction vibrator reaches the outside through the through hole 21.

In the embodiment of the present invention, as shown in fig. 6, the external magnetic bone conduction vibrator further includes a tuning net 100; the tuning net 100 is connected to the bottom of the T-shaped iron 20 and covers the through hole 21; the tuning net 100 is additionally arranged to improve the tone quality effect of the external magnetic bone conduction vibrator, meanwhile, the through hole 21 is sealed, external dust particles are prevented from entering the external magnetic bone conduction vibrator through the through hole 21 to influence the sound production effect of the external magnetic bone conduction vibrator, and the stability of the external magnetic bone conduction vibrator is improved.

In the embodiment of the present invention, as shown in fig. 7, the external magnetic bone conduction vibrator further includes a flexible circuit 110; the flexible wiring 110 is electrically connected to the voice coil 40 and passes through the through hole 21; the flexible circuit 110 is made of PCBA, and replaces the mode of electrifying by using voice coil leads and an external power supply in the prior art, so that the condition of noise loss of the external magnetic bone conduction vibrator is reduced, the stability is improved, the quality of the external magnetic bone conduction vibrator is improved, and the service life is prolonged.

In the embodiment of the present invention, as shown in fig. 11, the conductive damper 50 includes an outer ring 51, an inner ring 52, and a plurality of connecting portions 53 uniformly connected between the outer ring 51 and the inner ring 52, and at least one welding point for electrical connection is disposed on each of the outer ring 51 and the inner ring 52; the thickness range of the conductive elastic wave 50 is 0.05 mm-3 mm; the connecting part 53 is S-shaped, the inner ring 52 is connected and supported by the connecting part 53, and the outer ring 51 and the inner ring 52 increase the vibration of the voice coil 40, reduce power consumption, improve the mechanical efficiency of bone conduction and improve the quality of an external magnetic bone conduction vibrator.

In the embodiment of the present invention, as shown in fig. 8, the external magnetic bone conduction vibrator further includes a connecting member 120 and a circuit board 130; the connecting member 120 is connected to the conductive damper 50, and both ends of the connecting member extend to opposite sides of the conductive damper 50, the conductive sheet 60 is located outside the accommodating space 11 and connected to the connecting member 120, the circuit board 130 is located inside the accommodating space 11 and connected to the connecting member 120, the circuit board 130 is fixedly connected to the voice coil 40, and the circuit board 130 is electrically connected to the conductive damper 50 and the voice coil 40; the conductive elastic wave 50 is connected with an external power supply, so that the circuit board 130 and the voice coil 40 are electrified through the circuit board 130, and the voice coil 40 vibrates in the magnetic gap 70, so that the mode that the voice coil lead is electrified with the external power supply in the prior art is replaced, the noise loss of the external magnetic bone conduction vibrator is reduced, the stability is improved, the quality of the external magnetic bone conduction vibrator is improved, and the service life is prolonged; the voice coil 40 vibrates to drive the conductive damper 50 to vibrate.

In the embodiment of the present invention, as shown in fig. 9, the second elastic piece 140 of the external magnetic bone conduction vibrator is connected to the connecting member 120 and located between the conduction piece 60 and the conductive elastic wave 50; the second elastic sheet 140 is additionally arranged and is used for being connected with the inner side wall of the listening device, so that the connecting piece 120 is more stable, the overall stability and reliability are improved, and the safety performance is good.

Example two

The present invention further provides an external magnetic bone conduction vibrator, as shown in fig. 10, including a antimagnetic cover 10, a T-iron 20, a ring magnet 30, a voice coil 40, a conductive elastic wave 50, a second elastic sheet 140, a connecting member 120, and a conductive sheet 60; be equipped with accommodation space 11 in the antimagnetic housing 10, T iron 20 is located in accommodation space 11, annular magnet 30 overlaps and locates on T iron 20, annular magnet 30's top is equipped with magnificent 31, form magnetic gap 70 between the inside wall of magnificent 31 and the lateral wall of the post core of T iron 20, second shell fragment 140 is connected on antimagnetic housing 10, connecting piece 120 is connected and both ends extend to the relative both sides of second shell fragment 140 respectively with second shell fragment 140, voice coil 40 is connected and is located accommodation space 11 with connecting piece 120, the one end of voice coil 40 stretches into in magnetic gap 70, conducting piece 60 is connected and is located outside accommodation space 11 with connecting piece 120, electrically conductive elastic wave 50 is connected and is located between conducting piece 60 and the second shell fragment 140 with connecting piece 120, electrically conductive elastic wave 50 is connected with voice coil 40.

In the embodiment of the present invention, the conductive elastic wave 50 is connected to an external power supply, so that the voice coil 40 is powered on, the voice coil 40 generates vibration in the magnetic gap 70 to drive the conductive sheet 60 to vibrate to transmit sound, which replaces the way of powering on the external power supply with the voice coil lead wire in the prior art, reduces the noise loss of the external magnetic bone conduction vibrator, improves the stability, improves the quality of the external magnetic bone conduction vibrator, and prolongs the service life; the second elastic sheet 140 is additionally arranged, and the second elastic sheet 140 is used for being connected with the inner side wall of the listening device, so that the connecting piece 120 is more stable, the overall stability and reliability are improved, and the safety performance is good.

Further, a pad is connected to the conductive damper 50.

Further, as shown in fig. 10, the external magnetic bone conduction vibrator further includes a circuit board 130, the voice coil 40 is fixedly connected to the circuit board 130 and electrically connected to the circuit board 130, and the circuit board 130 is electrically connected to the conductive elastic wave 50.

Further, as shown in fig. 10, a through hole 21 is formed at the top of the T-bar 20; the provision of the through-hole 21 has the following advantages: firstly, heat dissipation is carried out on the interior of the external magnetic bone conduction vibrator, so that the temperature of the interior of the external magnetic bone conduction vibrator is reduced when the external magnetic bone conduction vibrator works; and secondly, improving the low-frequency effect and reducing distortion, and reducing the deviation of the voice coil 40 and the conduction sheet 60 caused by the residual air flow inside the external magnetic bone conduction vibrator because the air flow generated by the vibration of the voice coil 40 and the conduction sheet 60 of the external magnetic bone conduction vibrator reaches the outside through the first through hole 21, the second through hole 21 and the third through hole 21.

Further, as shown in fig. 10, the tuning net 100 is attached to the outer side wall of the casing and covers the through hole 21; the tuning net 100 is additionally arranged to improve the tone quality effect of the external magnetic bone conduction vibrator, meanwhile, the through hole 21 is sealed, external dust particles are prevented from entering the external magnetic bone conduction vibrator through the through hole 21 to influence the sound production effect of the external magnetic bone conduction vibrator, and the stability of the external magnetic bone conduction vibrator is improved.

Further, as shown in fig. 10, the external magnetic bone conduction vibrator further includes a flexible wire 110; the flexible circuit 110 is electrically connected with the conductive damper 50 and passes through the through hole 21; PCBA is selected for use by flexible line 110, replaces the mode that uses voice coil loudspeaker voice coil lead wire and external power source to carry out the circular telegram among the prior art, has avoided the voice coil loudspeaker voice coil lead wire to take place the condition that the friction leads to the fracture of voice coil loudspeaker voice coil lead wire because of the part in vibration and the external magnetic type bone conduction oscillator, reduces the condition that external magnetic type bone conduction oscillator loses sound, improves stability, improves the quality of external magnetic type bone conduction oscillator, increase of service life.

EXAMPLE III

In this embodiment, a bone conduction listening device is provided, which includes the above-mentioned external magnetic bone conduction vibrator; the bone conduction listening device can be a bone conduction hearing aid, bone conduction intelligent glasses, a bone conduction intelligent helmet or a bone conduction vibrator, the bone conduction listening device uses the external magnetic bone conduction vibrator in the embodiment, and due to the adoption of the external magnetic bone conduction vibrator, the use of a voice coil lead is avoided, and the noise loss of the external magnetic bone conduction vibrator caused by the fracture of the voice coil lead is also avoided; meanwhile, a dual magnetic field is generated after the power is turned on, so that the acting force of the voice coil 40 after the power is turned on in the annular magnetic gap 70 is increased, the vibration effect is enhanced, and the transmission effect of the conductive sheet 60 is improved.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. An external magnetic bone conduction vibrator is characterized by comprising an antimagnetic cover, T iron, a ring magnet, a voice coil, a conductive elastic wave and a conductive sheet; be equipped with accommodation space in the antimagnetic cover, T iron is located in the accommodation space, the annular magnet cover is located on the T iron, annular magnet's top is equipped with the magnificent department, the inside wall of magnificent department with form the magnetic gap between the lateral wall of the post core of T iron, electrically conductive bullet ripples connect in antimagnetic cover is last, the voice coil loudspeaker voice coil connect in on the electrically conductive bullet ripples and with electrically conductive bullet ripples electricity is connected, the one end of voice coil loudspeaker voice coil stretches into in the magnetic gap, the conduction piece with the voice coil loudspeaker voice coil is connected and is located outside the accommodation space.

2. An external magnetic bone conduction vibrator according to claim 1, characterized in that the antimagnetic housing comprises a small diameter cylinder, a large diameter cylinder and a connection ring connected between the small diameter cylinder and the large diameter cylinder, the conductive elastic wave is connected to an open end of the large diameter cylinder.

3. An external magnetic bone conduction vibrator according to claim 1, characterized in that the external magnetic bone conduction vibrator further comprises a bracket; the support is connected to the antimagnetic cover, and the conductive elastic wave is connected to the support.

4. An external magnetic bone conduction vibrator according to claim 3, characterized in that the external magnetic bone conduction vibrator further comprises a first elastic sheet; one end of the first elastic sheet is connected to the antimagnetic cover, and the other end of the first elastic sheet is connected to the support.

5. The external magnetic bone conduction vibrator according to claim 1, wherein the external magnetic bone conduction vibrator further comprises a second elastic sheet; the second elastic sheet is connected with the voice coil and is positioned between the conductive elastic wave and the conductive sheet.

6. An external magnetic bone conduction vibrator according to claim 1, characterized in that the top of the T-iron is provided with a through hole penetrating through the T-iron.

7. An external magnetic bone conduction vibrator according to claim 6, characterized in that the external magnetic bone conduction vibrator further comprises a tuning net; and the tuning net is connected to the bottom of the T iron and covers the through hole.

8. An external magnetic bone conduction transducer according to claim 6, characterized in that the external magnetic bone conduction transducer further comprises a flexible wire; the flexible circuit is electrically connected with the voice coil and penetrates through the through hole.

9. An external magnetic bone conduction vibrator according to any one of claims 1-8, wherein the conductive elastic wave comprises an outer ring, an inner ring and a plurality of connecting parts uniformly connected between the outer ring and the inner ring, and at least one welding point for electrical connection is arranged on each of the outer ring and the inner ring.

10. An external magnetic bone conduction vibrator according to any of claims 1-8, characterized in that the external magnetic bone conduction vibrator further comprises a connector and a circuit board; the connecting piece with electrically conductive bullet ripples is connected and both ends extend to respectively electrically conductive bullet ripples's relative both sides, the conducting strip is located outside the accommodation space and with the connecting piece is connected, the circuit board is located within the accommodation space and with the connecting piece is connected, the circuit board with voice coil loudspeaker voice coil fixed connection, just the circuit board with electrically conductive bullet ripples with the voice coil loudspeaker voice coil electricity is connected.

11. An external magnetic bone conduction vibrator is characterized by comprising a antimagnetic cover, T iron, an annular magnet, a voice coil, a conductive elastic wave, a second elastic sheet, a connecting piece and a conduction sheet; be equipped with accommodation space in the antimagnetic cover, T iron is located in the accommodation space, the annular magnet cover is located on the T iron, annular magnet's top is equipped with the magnificent department, the inside wall of magnificent department with form the magnetic gap between the lateral wall of the post core of T iron, the second shell fragment connect in antimagnetic cover is last, the connecting piece with the second shell fragment is connected and both ends extend to respectively the relative both sides of second shell fragment, the voice coil loudspeaker voice coil with the connecting piece is connected and is located within the accommodation space, the one end of voice coil loudspeaker voice coil stretches into in the magnetic gap, the conduction piece with the connecting piece is connected and is located outside the accommodation space, electrically conductive bullet ripples with the connecting piece is connected and is located the conduction piece with between the second shell fragment, electrically conductive bullet ripples with the voice coil loudspeaker voice coil electricity is connected.