CN110166911B

CN110166911B - Bone conduction speaker and earphone

Info

Publication number: CN110166911B
Application number: CN201910579637.3A
Authority: CN
Inventors: 蒋泽全; 张科宇
Original assignee: Shenzhen Jintaitan Technology Co ltd
Current assignee: Shenzhen Jintaitan Technology Co ltd
Priority date: 2019-06-28
Filing date: 2019-06-28
Publication date: 2020-09-29
Anticipated expiration: 2039-06-28
Also published as: CN110166911A

Abstract

A bone conduction speaker and earphone includes a driving mechanism; the audio conversion mechanism comprises a hammer, the hammer comprises a hammer head and a first cantilever, and the first cantilever is connected with the driving mechanism; the amplitude transmission mechanism comprises a vibration device and a shell, the shell comprises a shell, and the vibration device is fixed on the shell; the driving mechanism receives the energy with the audio signal, converts the energy into mechanical energy to drive the hammer to beat the vibration device to generate vibration, and transmits the vibration signal to the skull through the amplitude transmission mechanism to enable the human body to feel sound. Because the hammer head does not directly knock the shell, the contact surface of the head of the person is not required to be impacted, the sound frequency vibration is sent out in advance, and only the loudspeaker (or the earphone) and the contact surface of the head of the person are used as a transmission interface to be transmitted to the skull of the person, then the person is enabled to feel sound, and the injury caused by frequent impact of the conventional bone conduction earphone on the head of the person is avoided.

Description

Bone conduction speaker and earphone

Technical Field

The present application relates to bone conduction technology, and more particularly, to a bone conduction speaker and an earphone.

Background

The bone conduction speaker is completely different from a speaker in a traditional diaphragm mode, the bone conduction speaker is a speaker capable of hearing sound without eardrum, and the bone conduction speaker directly transmits audio signals to skull bones by converting the audio signals into mechanical vibration and then transmits the mechanical vibration to an auditory center, so that people feel the sound. Unlike conventional diaphragm-type speakers, there is no need for human ear membranes to hear.

Bone conduction earphones in the market at present mainly impact a shell through an internal driving device, transmit vibration to skull bones of people, and then enable people to feel sound. The earphone in such a mode has too low power to sense sound, and too high power can increase impact sensed by the head, so that the head is uncomfortable and even uncomfortable.

Disclosure of Invention

The application provides a bone conduction speaker and an earphone.

According to a first aspect of the present application, there is provided a bone conduction speaker comprising a driving mechanism, an audio transducing mechanism and an amplitude transmitting mechanism;

the driving mechanism is used for receiving energy with audio signals and converting the energy into mechanical energy to drive the audio conversion mechanism;

the audio conversion mechanism comprises a hammer, the hammer comprises a hammer head and a first cantilever, the hammer head is arranged on the first cantilever, and the first cantilever is connected with the driving mechanism;

the amplitude transmission mechanism comprises a vibration device and a shell, the vibration device is matched with the hammer, the shell comprises a shell and a sealing cover, the shell surrounds a cavity, one end of the shell is closed, the other end of the shell is open, the sealing cover is arranged at the open end, the driving mechanism, the audio conversion mechanism and the vibration device are arranged in the cavity, and the vibration device is fixed on the shell;

the driving mechanism receives energy with audio signals and converts the energy into mechanical energy to drive the hammer to beat the vibration device to generate vibration, and the vibration signals are transmitted to the skull through the amplitude transmission mechanism to enable a human body to feel sound.

According to a second aspect of the present application, there is provided a bone conduction headset comprising the above bone conduction speaker.

Due to the adoption of the technical scheme, the beneficial effects of the application are as follows:

in the embodiment of the application, the device comprises a driving mechanism, an audio conversion mechanism and an amplitude transmission mechanism, wherein the audio conversion mechanism comprises a hammer head and a first cantilever, the hammer head is arranged on the first cantilever, the first cantilever is connected with the driving mechanism, the amplitude transmission mechanism comprises a vibration device and a shell, the vibration device is matched with the hammer, the shell comprises a shell and a sealing cover, the sealing cover is arranged at the opening end of the shell, the vibration device is fixed on the shell, the driving mechanism receives energy with an audio signal and converts the energy into mechanical energy to drive the hammer to beat the vibration device to generate vibration, the vibration signal is transmitted to a skull through the shell, a human body feels sound, the hammer head does not directly beat the shell, the impact on the head contact surface of the human body is not needed, the audio vibration is generated in advance, and only the contact surface of a loudspeaker (or an earphone) and the head contact surface of, transmitted to the skull of the person and then let the person feel sound, avoiding the injury caused by the frequent impact of the conventional bone conduction headset on the head of the person.

Drawings

Fig. 1 is a schematic structural diagram of a bone conduction speaker in an embodiment according to the first embodiment;

fig. 2 is a schematic structural diagram of a bone conduction speaker according to another embodiment of the first embodiment;

fig. 3 is a schematic structural diagram of a bone conduction speaker according to a second embodiment in an implementation manner;

fig. 4 is a schematic structural diagram of a bone conduction speaker according to another embodiment of the second embodiment.

Detailed Description

The present invention will be described in further detail with reference to the following detailed description and accompanying drawings. The present application may be embodied in many different forms and is not limited to the embodiments described in the present embodiment. The following detailed description is provided to facilitate a more thorough understanding of the present disclosure, and the words used to indicate orientation, top, bottom, left, right, etc. are used solely to describe the illustrated structure in connection with the accompanying figures.

One skilled in the relevant art will recognize, however, that one or more of the specific details can be omitted, or other methods, components, or materials can be used. In some instances, some embodiments are not described or not described in detail.

The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning.

Furthermore, the technical features, aspects or characteristics described herein may be combined in any suitable manner in one or more embodiments. It will be readily appreciated by those of skill in the art that the order of the steps or operations of the methods associated with the embodiments provided herein may be varied. Thus, any sequence in the figures and examples is for illustrative purposes only and does not imply a requirement in a certain order unless explicitly stated to require a certain order.

The first embodiment is as follows:

as shown in fig. 1 and 2, one embodiment of the bone conduction speaker according to the present invention includes a driving mechanism 11, an audio converting mechanism, and an amplitude transmitting mechanism.

The driving mechanism 11 is used for receiving energy with an audio signal and converting the energy into mechanical energy to drive the audio conversion mechanism;

the audio conversion mechanism comprises a hammer, the hammer comprises a first cantilever 21 and a hammer head 22, the hammer head 22 is arranged on the first cantilever 21, and the first cantilever 21 is connected with the driving mechanism 11.

Amplitude transmission mechanism, including vibration device and shell, vibration device and hammer cooperation, the shell includes casing 31 and sealed lid 32, and casing 31 encloses out cavity 33 and one end closed one end opening, and sealed lid 32 sets up at the open end, and actuating mechanism 11, audio frequency conversion mechanism and vibration device set up in cavity 33, and the vibration device is fixed on 31 casings.

The driving mechanism 11 receives the energy with the audio signal, converts the energy into mechanical energy to drive the hammer to beat the vibration device to generate vibration, and transmits the vibration signal to the skull bone through the amplitude transmission mechanism, so that a human body feels sound.

Further, the audio conversion mechanism further comprises a sound stopper, the sound stopper comprises a second cantilever 23 and a sound stopping pad 24, the sound stopping pad 24 is arranged on the second cantilever 23, the second cantilever 23 is connected to the first cantilever 21, and the sound stopping pad 24 is matched with the vibration device. The sound stop pad 24 presses against the audio vibration device (e.g., a vibrating reed or vibrating wire) to reduce or eliminate the aftersound of the audio vibration device.

Further, the first suspension arm 21 may be formed in various shapes, and in the present embodiment, the first suspension arm 21 is L-shaped. The second arm 23 may be formed in various shapes, and in the present embodiment, the second arm 23 is L-shaped.

In the present application, the hammer head 22 and the sound stopping pad 24 are respectively located above and below the vibration device, that is, the hammer head 22 may be located above the vibration device, and the sound stopping pad 24 may be located below the vibration device; alternatively, the hammer head 22 may be located below the vibrating device and the sound damping pad 24 may be located above the vibrating device.

Further, the vibration means may include a metal sheet 41, a metal wire 42, horsehair, or high-strength rayon, etc. In one embodiment, the metal sheet 41 may be disposed on the housing 31 through the first fixing post 43. One first fixing post 43 may be provided. In another embodiment, the wire 42 may be disposed on the housing 31 through the second fixing post 44, and the second fixing post 44 may be disposed in two, and both ends of the wire 42 are respectively fixed on the two second fixing posts 44. The horse bristles and high strength rayon may be mounted in the same manner as the wires 42.

Further, the driving mechanism 11 may include an electromagnetic coil or a piezoelectric device (not shown), and the piezoelectric device may include a piezoelectric sheet or a piezoelectric ceramic, etc.

Further, the housing may further include a sealing ring 34, and in one embodiment, the housing 31 is provided with a support stand 35, the sealing ring 34 is disposed on the support stand 35, and the sealing cover 32 presses the sealing ring 34. In another embodiment, the housing 31 defines a groove, the sealing ring 34 is disposed in the groove, and the sealing cap 32 compresses the sealing ring 34.

Further, the support stand 35 may be cylindrical and the bottom is provided at the closed end of the housing 31, i.e. the bottom 36 of the housing is provided.

Further, the hammer may include one or more. The hammer head material is adjusted by adjusting the material, thickness, width, diameter and/or length of the vibration device (such as a vibrating plate, a vibrating wire and the like) so as to achieve the mixing of different high pitch, middle pitch and/or low pitch.

The working process is as follows: the sealing plate of the waterproof sealing shell can be connected with the outside in a circuit mode, such as a power source driven by an electromagnetic coil or a piezoelectric power source, according to different driving source modes. There may be a sound tube connection such as an air-powered power source. When the driving mechanism receives input energy with audio signals, the driving mechanism can drive different hammer heads to reciprocate according to the audio energy signals in the energy. When the hammer head moves towards the audio vibration device (vibrating reed or vibrating wire), the sound stopper leaves the vibrating device (vibrating reed or vibrating wire) firstly, the vibrating device (vibrating reed or vibrating wire) is kept in a suspended state, when the hammer head continues to move towards the audio vibration device (vibrating reed or vibrating wire), the audio vibration device (vibrating reed or vibrating wire) is knocked, the audio vibration device (vibrating reed or vibrating wire) is made to emit corresponding vibration, the material passing through the audio vibration device (vibrating reed or vibrating wire), the thickness, the width, the diameter, the length and the like are adopted, different materials of the hammer head are adopted, the mixing of various tone qualities such as different high tones, medium tones, low tones and the like is achieved, then vibration information generated by vibration is transmitted to the skull through the shell in the amplitude transmission mechanism, and a person is enabled to receive sound.

Example two:

the second embodiment is different from the first embodiment in that, as shown in fig. 3 and 4, the housing 31 may further include a conductive plate 37, the conductive plate 37 is disposed at the bottom of the housing 31, and the vibration device is fixed to the housing 31 through the conductive plate.

Example three:

an embodiment of the bone conduction headset of the present application includes the bone conduction speaker of the first embodiment or the second embodiment.

The foregoing is a more detailed description of the present application in connection with specific embodiments thereof, and it is not intended that the present application be limited to the specific embodiments thereof. It will be apparent to those skilled in the art from this disclosure that many more simple derivations or substitutions can be made without departing from the spirit of the disclosure.

Claims

1. A bone conduction speaker is characterized by comprising a driving mechanism, an audio conversion mechanism and an amplitude transmission mechanism;

2. The bone conduction speaker of claim 1, wherein the audio transducing mechanism further comprises a sound stop including a second cantilever and a sound stop pad, the sound stop pad being disposed on the second cantilever, the second cantilever being connected to the first cantilever, the sound stop pad cooperating with the vibrating device.

3. The bone conduction speaker of claim 2, wherein the hammer head and the sound stop pad are located above and below the vibration device, respectively.

4. The bone conduction speaker of claim 1, wherein the vibration device comprises a metal sheet or wire.

5. The bone conduction speaker of claim 1, wherein the drive mechanism comprises an electromagnetic coil or a piezoelectric device.

6. The bone conduction speaker as claimed in any one of claims 1 to 5, wherein the housing further comprises a sealing ring, the housing is provided with a support base on which the sealing ring is provided, and the sealing cover presses the sealing ring.

7. The bone conduction speaker as claimed in any one of claims 1 to 5, wherein the housing further comprises a conductive plate provided at a bottom of the housing, the vibration device being fixed to the housing through the conductive plate.

8. The bone conduction speaker of claim 7, wherein the hammers include one or more.

9. The bone conduction speaker as in claim 8, wherein the hammer head material is adjusted to achieve a mix of different high, mid and/or low tones by adjusting the material, thickness, width, diameter and/or length of the vibrating device.

10. A bone conduction headset characterized by comprising a bone conduction speaker as claimed in any one of claims 1 to 9.