CN210007872U

CN210007872U - audio output device

Info

Publication number: CN210007872U
Application number: CN201920666392.3U
Authority: CN
Inventors: 朱骏
Original assignee: Zhuhai Lexia Wisdom Technology Co Ltd
Current assignee: Zhuhai Lexia Wisdom Technology Co Ltd
Priority date: 2019-05-10
Filing date: 2019-05-10
Publication date: 2020-01-31
Anticipated expiration: 2029-05-10

Abstract

The utility model discloses an audio output device, including electric connection's power and CPU and two at least independent acoustics units that the orientation is different, every independent acoustics unit respectively with CPU with power electric connection, and every independent acoustics unit is used for exporting the audio frequency of different frequency channels respectively, the utility model discloses an at least two independent acoustics units separately export the sound of high, medium and low three frequency channels, and audio output's orientation is different, utilize well high frequency channel sound transmission directive property strong and low frequency sound transmission to the characteristic of diffusion all around, can be with the directional human ear of the independent acoustics unit of the sound of exporting well high frequency channel for obtain well high frequency channel sound transmission to the shortest path of people's ear, avoid the direct directional crowd around of sound of well high frequency channel, effectively reduce the sound interference to the environment, realize directional output, and accomplish the efficiency promotion in the true sense, under equal power output promptly, obtain longer continuation of the journey operating time.

Description

audio output device

Technical Field

The utility model relates to an audio equipment field, concretely relates to audio output device.

Background

At present, small-size portable wearable sound box or bluetooth sound box on the market is generally a single cavity acoustic structure, in a daily portable use scene of people, the output direction of the sound of a loudspeaker is generally directed to the outside of a human body, the acoustic layout is in an outdoor wearable application scene, the ubiquitous sound output is not directly directed to and reaches the ear of a person, the actual expression is that after the sound is output from the loudspeaker, the effective music or sound transmitted to the ear of the user is very little, most sound signals are wasted and lost in a useless space, and when the portable sound box is directly used by a consumer, the user cannot obtain the best music or sound effect experience by himself, and often, in order to clearly listen to the music, the sound box must be opened to a large sound volume, so that the product energy efficiency is low by steps, the endurance time is shortened, the electric energy is wasted, and meanwhile, the current situation of noise pollution and uncomfortable feeling can be caused to the biological environment around the user can be brought, and the current situation can be truly reflected that the small-size portable sound box product has design defects and industries in the actual use process, and the requirements of the desktop in the indoor use scene such as wearing, the indoor.

In addition, the neck ring type portable wearable sound box is provided by some manufacturers in two years, and although the neck ring type portable wearable sound box has the advantages that the horn is directed to and close to the ear of a user, the neck is a key organ of the human body due to the fact that the size of the product is large, the weight of the product is concentrated on the shoulder and neck of the user, the neck is a small part, fat muscle tissues at the clavicle are few, and the number of vascular nerves is large, so that the child feels heavy and uncomfortable when wearing , the neck cannot be worn for a long time like an earphone product , the neck ring type portable wearable sound box is not suitable for outdoor sports scenes due to the fact that the product slides on the neck or even falls off due to limb actions, the possibility of damaging the skin, ligaments and muscle tissues of the neck exists, and the neck ring type portable wearable sound box is not suitable for outdoor sports scenes, and the use experience and the wearing risk directly.

Disclosure of Invention

Not enough to prior art, the utility model provides an kinds of audio output device for the audio amplifier of solving single cavity acoustic structure tone quality is not good enough and noise pollution is big problem under portable wearing scene.

The content of the utility model is as follows:

audio output device, including electric connection's power and CPU and at least two independent acoustic units that the orientation is different, every independent acoustic unit respectively with CPU with power electric connection, and every independent acoustic unit is used for exporting the audio frequency of different frequency channels respectively.

Preferably, the independent acoustic unit comprises a closed cavity, a loudspeaker and a power amplification circuit, the loudspeaker is arranged in the closed cavity and electrically connected with the power amplification circuit, and the power amplification circuit is respectively connected with the CPU and the power supply.

Preferably, at least two of said horns are oriented perpendicularly to each other.

Preferably, the CPU is further electrically connected to a state detection unit, and the state detection unit is configured to acquire a direction change signal of the independent acoustic unit.

Preferably, the state detection unit includes at least of a gyroscope, an acceleration sensor, a camera sensor, an infrared human body sensor, an input key or a wireless signal receiving terminal.

Preferably, the output frequency band of each of the independent acoustic units can be switched according to the input signal of the state detection unit.

Preferably, still include the casing, the casing includes cuboid, square, cylinder, oval cylinder, cake form or oval cake form, at least two independent acoustic unit sets up respectively on the adjacent both sides face of casing.

Preferably, the housing is a rectangular parallelepiped, wherein the speakers of the individual acoustic units are elliptical or oblong.

Preferably, the outer side of the horn is provided with a directional output sound gathering ring.

The utility model has the advantages that: the utility model discloses a sound of two at least independent acoustics units three frequency channels of height is separately and reorganization output, and the orientation of audio output is different, utilize well high frequency channel sound transmission directive property strong with low frequency sound transmission to the characteristic of diffusion all around, can be with the directional human ear of the independent acoustics unit of sound of output well high frequency channel, be used for obtaining the shortest path of well high frequency channel sound transmission to human ear, avoid the direct directional crowd around of sound of well high frequency channel, effectively reduce the sound interference to the environment, realize directional output.

Drawings

FIG. 1 is a general block diagram of an embodiment of the present invention;

fig. 2 is a schematic diagram of scene 1 according to an embodiment of the present invention;

fig. 3 is a schematic diagram of scene 2 according to an embodiment of the present invention;

in the figure, 1, a radiator, 2, th independent acoustic unit horn, 3, second independent acoustic unit horn, 4, a sound gathering ring, 5, second independent acoustic unit closed cavity, 6, th independent acoustic unit closed cavity, HF, high-frequency band sound, MF, middle-frequency band sound, LF, low-frequency band sound.

Detailed Description

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more obvious and understandable, the following preferred embodiments are described in detail with reference to the accompanying drawings.

Referring to fig. 1, audio output devices disclosed in this embodiment include a housing, a power supply and a CPU electrically connected to each other, and at least two independent acoustic units facing different directions, where the power supply, the CPU and the independent acoustic units are all disposed in the housing, each independent acoustic unit is electrically connected to the CPU and the power supply, and each independent acoustic unit is used to output audio in different frequency bands, so as to break through the inherent design thinking of a conventional acoustic structure with a single cavity and implement a vectorized directional acoustic structure.

When the number of the independent acoustic units is two, independent acoustic units are used for outputting audio of a middle-high frequency band, and independent acoustic units are used for outputting audio of a low-frequency band or a middle-low frequency band, or independent acoustic units are used for outputting audio of a low-frequency band or a middle-low frequency band, and independent acoustic units are used for outputting audio of a middle-high frequency band or a full-frequency band.

In order to meet the requirements of users for use in outdoor sports scenes, the casing of the present embodiment may be a rectangular parallelepiped, a cube, a cylinder, an elliptical cylinder, a circular pie or an elliptical pie, and in order to improve portability, the casing may be a flat rectangular parallelepiped, the present embodiment employs two independent acoustic units, wherein independent acoustic units are disposed on the front side of the casing and are named as independent acoustic unit, and independent acoustic units are disposed on the top of the casing and are named as second independent acoustic unit, the sealed cavity 6 of the independent acoustic unit and the sealed cavity 5 of the second independent acoustic unit are partitioned by a partition, the horn 2 of the independent acoustic unit employs a circular full-frequency horn, the radiator 1 is disposed below the horn 2 of the independent acoustic unit, the radiator 1 may be selectively used or cancelled according to low-frequency acoustic requirements of actual products, and the horn 3 of the second independent acoustic unit employs a long circular full-frequency horn or an elliptical full-frequency horn, so as to reduce the thickness of the casing, achieve an ultra-thin design of the casing, and improve portability and flexibility of the product in .

The CPU is also electrically connected with a state detection unit, the state detection unit is used for acquiring orientation change signals of the independent acoustic units or change signals of a man-machine position relationship, the output frequency band of each independent acoustic unit can be switched according to the input signals of the state detection unit, the state detection unit comprises at least of a gyroscope, an acceleration Sensor (G-Sensor), a Camera Sensor (Camera-Sensor), an infrared human body Sensor, an input key or a wireless signal receiving end, and the wireless signal receiving end is specifically at least of a Bluetooth module, a WIFI module or a 2G/3G/4G/5G module used for connecting a mobile phone.

In order to further prevent sound diffusion in the middle and high frequency range and enhance the directional output effect of sound, the outer side of each horn is provided with a height-fixed sound-collecting ring 4.

Referring to fig. 2, a scene 1 shown in fig. 2 is a scene simulating outdoor sports of a user, when the user wears a product on a chest and back strap of a backpack or a left arm strap, since the second independent acoustic unit is disposed on a top of the housing, the second independent acoustic unit is closest to ears of the user, and therefore, during initialization, the CPU sets an output frequency band of the second independent acoustic unit to a middle-high frequency band and sets an output frequency band of the th independent acoustic unit to a low frequency band or a middle-low frequency band according to a detection signal of the state detection unit, thereby achieving an optimal sound field output combination.

Referring to fig. 3, a scene 2 shown in fig. 3 is an application scene simulating a user placing a product indoors or in a vehicle, when the user takes down the product and vertically places the product on a desk, or vertically places the product on a sound box bracket at an air outlet of a vehicle-mounted air conditioner (as shown on the right side of the user in fig. 3), at this time, an -th independent acoustic unit is closest to the ear of a human body, the CPU adjusts the output frequency band of each independent acoustic unit according to the detection signal of the state detection unit, that is, the -th independent acoustic unit originally used for outputting low-frequency band sound is changed to output medium-high-frequency band or full-frequency band sound, and the second independent acoustic unit originally used for outputting medium-high-frequency band sound is used for outputting low;

when a user takes down a product and horizontally places the product on a desk or a control table board in a vehicle (as shown on the left side of the user in the figure), at the moment, the second independent acoustic unit is closest to the ear of a human body, the CPU can adjust the output frequency band of each independent acoustic unit according to the detection signal of the state detection unit, namely, the independent acoustic unit originally used for outputting the sound of the middle-high frequency band or the full frequency band is changed into outputting the sound of the low frequency band, and the second independent acoustic unit originally used for outputting the sound of the low frequency band is used for outputting the sound of the middle-high frequency band or the full frequency band.

The embodiment can flexibly adjust the output frequency band of the independent acoustic unit according to different man-machine positions between users and products, ensures that the sound of the middle and high frequency band directly points to the ear of the user, and reduces the influence of the sound of the middle and high frequency band on the surrounding environment.

The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above embodiment, and the technical effects of the present invention can be achieved by the same means, which all belong to the protection scope of the present invention. The technical solution and/or the embodiments of the invention may be subject to various modifications and variations within the scope of the invention.

Claims

The audio output device is characterized by comprising a power supply, a CPU and at least two independent acoustic units in different directions, wherein the power supply and the CPU are electrically connected, each independent acoustic unit is electrically connected with the CPU and the power supply, and each independent acoustic unit is used for outputting audio in different frequency bands.
2. The audio output device of claim 1, wherein: the independent acoustic unit comprises a closed cavity, a loudspeaker and a power amplification circuit, wherein the loudspeaker is arranged in the closed cavity and electrically connected with the power amplification circuit, and the power amplification circuit is respectively connected with the CPU and the power supply in an electric mode.
3. The audio output device of claim 2, wherein: at least two of the horns are oriented perpendicular to each other.
4. The audio output device of claim 1, wherein: the CPU is also electrically connected with a state detection unit, and the state detection unit is used for acquiring the orientation change signal of the independent acoustic unit.
5. The audio output device as claimed in claim 4, wherein the state detecting unit includes at least of a gyroscope, an acceleration sensor, a camera sensor, an infrared human body sensor, an input key, or a wireless signal receiving terminal.
6. Audio output device according to claim 4 or 5, characterized in that: the output frequency band of each independent acoustic unit can be switched according to the input signal of the state detection unit.
7. The audio output device of claim 2, wherein: still include the casing, the casing includes cuboid, square, cylinder, oval cylinder, cake form or oval cake form, at least two independent acoustic unit sets up respectively on the adjacent both sides face of casing.
8. The audio output device of claim 7, wherein the housing is a rectangular parallelepiped, and wherein the speakers of the individual acoustic units are elliptical or oblong.
9. The audio output apparatus according to claim 7 or 8, characterized in that: and a directional output sound gathering ring is arranged on the outer side of the horn.