CN112492470A

CN112492470A - Loudspeaker and automobile

Info

Publication number: CN112492470A
Application number: CN201910858341.5A
Authority: CN
Inventors: 王一平
Original assignee: Beijing Electric Vehicle Co Ltd
Current assignee: Beijing Electric Vehicle Co Ltd
Priority date: 2019-09-11
Filing date: 2019-09-11
Publication date: 2021-03-12

Abstract

The invention provides a loudspeaker and an automobile, and relates to the technical field of automobile accessories. The loudspeaker comprises: a base; the first end of the annular support is riveted with the base; u iron fixed on the base; the U iron is sequentially provided with a first magnet, a magnetic conductive sheet and a second magnet; the voice diaphragm set is fixedly connected to the second end of the awakening support, and the reflector is fixedly connected to the second end of the awakening support, wherein the voice diaphragm set is located between the second magnet and the reflector. Through the sunken formula structural design of voice diaphragm group, the voice diaphragm adopts glass fiber dura mater material to and the design of dual magnetic circuit, can improve the high frequency response and the magnetic induction intensity of speaker, thereby make the high frequency extend and obtain very big extension, the spatial sensation that the audition experienced is felt and is felt bright and obviously promoted.

Description

Loudspeaker and automobile

Technical Field

The invention relates to the technical field of automobile accessories, in particular to a loudspeaker and an automobile.

Background

With the development of technology, automobiles are also endowed with more functions, such as audio-visual experience, as indispensable vehicles in human life.

The listening test environment in the automobile is severe, and due to the narrow space, the difference of the structures and materials of the interior trim, the seat, the ceiling and the automobile body can cause the absorption and reflection of the sound with different frequencies, so that the reverberation time in the automobile is short, an effective reverberation sound field can not be formed, and the sound in the automobile is completely composed of direct sound and early reflected sound and can be absorbed and scattered quickly. In the case of automobiles, the reverberation time is generally about 30ms to 50ms, which is not comparable to the reverberation time of 1.5s to 1.8s in concert halls, operas, and the like, and therefore the environment in the automobile gives a relatively silent listening feeling to the reproduction of sound. Especially, in the high frequency part, due to the characteristics of the high frequency, the wavelength is short, the attenuation is fast, the requirement on the directivity is high, and the high frequency part is more easily influenced by the listening environment in the vehicle. The high-frequency part determines the stage height of a sound field, determines the definition, brightness and space sense of sound, and the high-frequency quality is of no significance to the sound quality of the whole vehicle.

Therefore, in order to eliminate high-frequency loss caused by the automobile listening environment, the user audition experience is improved.

Disclosure of Invention

The embodiment of the invention provides a loudspeaker and an automobile, and aims to solve the problem of how to reduce high-frequency loss caused by an automobile listening environment.

In order to solve the above technical problem, an embodiment of the present invention provides a speaker, including:

a base;

the first end of the annular support is riveted with the base;

u iron fixed on the base;

the U iron is sequentially provided with a first magnet, a magnetic conductive sheet and a second magnet;

the voice diaphragm set is fixedly connected to the second end of the annular support, and the reflector is fixedly connected to the second end of the annular support, wherein the voice diaphragm set is located between the second magnet and the reflector.

Further, be provided with the installation department on the reflector, the reflector with ring carrier passes through the installation department joint.

Furthermore, the sound membrane of the sound membrane group is made of glass fiber hard membrane materials.

Further, the diaphragm group is a recessed structure, and the recessed structure includes: a recessed surface recessed toward the second magnet side, and an annular rim formed around an outer edge of the recessed surface.

Further, the speaker includes a first magnetic circuit and a second magnetic circuit;

wherein the first magnet and the magnetic conductive sheet constitute the first magnetic circuit, and the second magnet and the magnetic conductive sheet constitute the second magnetic circuit.

Further, the speaker further includes:

and the edge pressing is bonded with the reflector.

An embodiment of the present invention further provides an automobile, including: the loudspeaker is fixedly connected with the vehicle body through the base.

The invention has the beneficial effects that:

above-mentioned scheme, through the sunken formula structural design of voice diaphragm group, the voice diaphragm adopts glass fiber dura mater material to and the design of two magnetic circuits, can improve the high frequency response and the magnetic induction intensity of speaker, thereby make the high frequency extend and obtain very big extension, the spatial sensation and the bright sense of listening experience obviously promote.

Drawings

Fig. 1 is an exploded view of a speaker according to an embodiment of the present invention;

fig. 2 is a schematic top view of a speaker according to an embodiment of the present invention;

fig. 3 is a schematic bottom view of a speaker according to an embodiment of the present invention;

fig. 4 is a schematic diagram of a system architecture of a speaker according to an embodiment of the present invention.

Description of reference numerals:

1-a base; 2-a ring-shaped support; 3-U iron; 4-a first magnet; 5-magnetic conductive sheet; 6-a second magnet; 7-a group of voice diaphragms; 8-a reflector; and 9-pressing the edges.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

In various embodiments of the present invention, it should be understood that the sequence numbers of the following processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.

It should be understood that the term "and/or" herein is merely one type of association relationship that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

The invention provides a loudspeaker and an automobile, aiming at solving the problem of reducing high-frequency loss caused by an automobile listening environment.

As shown in fig. 1, an embodiment of the present invention provides a speaker, including:

a base 1;

the first end of the annular support 2 is riveted with the base 1;

u iron 3 fixed on the base 1;

the U iron 3 is sequentially provided with a first magnet 4, a magnetic conductive sheet 5 and a second magnet 6;

a diaphragm set 7 and a reflector 8 fixedly connected to the second end of the ring-shaped support 2, wherein the diaphragm set 7 is located between the second magnet 6 and the reflector 8.

According to the embodiment of the invention, through the concave structure design of the sound film group, the sound film is made of glass fiber hard film materials, and the double magnetic circuit design, the high-frequency response and the magnetic induction intensity of the loudspeaker can be improved, so that the high-frequency extension is greatly extended, and the space sense and the brightness sense of audition experience are obviously improved.

Specifically, be provided with the installation department on the reflector 8, reflector 8 with ring carrier 2 passes through the installation department joint.

Specifically, the sound membrane of the sound membrane group 7 is made of a glass fiber hard membrane material.

It should be noted that, the glass fiber hard film material may be selected to make the high-frequency response of the speaker more ductile.

Specifically, the diaphragm group 7 is a recessed structure, and the recessed structure includes: a recessed surface recessed toward the second magnet 6, and an annular rim formed around an outer edge of the recessed surface.

It should be noted that, compared with the ball-top structure in the existing structure, the sound module with the recessed design can make the high-frequency response of the audio signal more extended when playing the audio signal.

Specifically, the speaker includes a first magnetic circuit and a second magnetic circuit;

wherein the first magnet 4 and the magnetic conductive plate 5 constitute the first magnetic circuit, and the second magnet 6 and the magnetic conductive plate 5 constitute the second magnetic circuit.

It should be noted that, the design of the dual magnetic circuit structure can improve the magnetic induction intensity of the speaker, thereby playing a role in enhancing the high-frequency gain.

Specifically, the speaker further includes:

and the edge pressing 9 is bonded with the reflector 8.

It should be noted that, the components of the embodiment of the present invention are further bonded by glue, and preferably, glue with certain high temperature resistance and low temperature resistance is used.

It should be further noted that, in the aspect of system architecture, the host and the power amplifier perform control interaction and data transmission through the CAN bus, control signals are transmitted to the power amplifier through the CAN bus by the host, digital audio signals are transmitted to the power amplifier through the A2B bus by the host, the transmitted digital signals are directly operated and processed by the DSP without DAC conversion, high-frequency gain is enhanced, power amplification is performed through the IC amplifier, and the amplified digital signals are transmitted to the high-pitch loudspeaker for sound reproduction. Preferably, a system architecture as shown in fig. 4 may be adopted, wherein the HEAD UNIT of the car audio body transmits the CAN signal with the MCU through the signal transceiver on the CAN bus, the audio signal is not converted by the DAC, and is directly transmitted to the DSP through the MCU for operation and processing, and then enters the speaker after being processed by the Codec.

It should be further noted that the DSP filters the amplitude variations of different frequency bands through the audio algorithm equalizer, correspondingly designs an equalization curve to obtain an audio with a constant amplitude, creates an immersive listening embodiment through the virtual surround technology, and enhances the audio played by the speaker, so that the high frequency part is expanded.

The loudspeaker provided by the embodiment of the invention has higher electroacoustic conversion efficiency, the same electric power sound pressure level advantage is obvious, and the load of a host can be effectively reduced; meanwhile, the total harmonic distortion system is smaller, under the condition that the volume gains are the same, the sound distortion is smaller, clipping and deformation do not exist, and the probability of sound reproduction and sound breaking is smaller; through a special digital signal processing technology, the gain of high frequency is enhanced, the high frequency characteristic is effectively extended, and the height and the directional characteristic of a stage are improved; compared with the traditional analog signal, the anti-electromagnetic interference characteristic is more obvious, high-definition audio signals can be transmitted, and the loss of the signals is reduced.

It should be noted that, when the car with the loudspeaker plays audio, because the high frequency extends greatly, the space sense and the brightness sense of the trial listening experience are obviously improved.

It is further noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion.

While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the following claims.

Claims

1. A loudspeaker, comprising:

a base (1);

the first end of the annular support (2) is riveted with the base (1);

a U iron (3) fixed on the base (1);

the U iron (3) is sequentially provided with a first magnet (4), a magnetic conductive sheet (5) and a second magnet (6);

a voice diaphragm set (7) and a reflector (8) fixedly connected to the second end of the ring-shaped support (2), wherein the voice diaphragm set (7) is located between the second magnet (6) and the reflector (8).

2. The loudspeaker according to claim 1, characterized in that an installation part is arranged on the reflector (8), and the reflector (8) and the annular bracket (2) are connected through the installation part in a clamping manner.

3. A loudspeaker according to claim 1, wherein the sound membrane of the sound membrane group (7) is made of glass fiber hard membrane material.

4. A loudspeaker according to claim 1, wherein the diaphragm group (7) is of a recessed configuration comprising: a recessed surface recessed toward the second magnet (6) side, and an annular rim formed around an outer edge of the recessed surface.

5. The loudspeaker of claim 1, wherein the loudspeaker comprises a first magnetic circuit and a second magnetic circuit;

wherein the first magnet (4) and the magnetic conductive sheet (5) constitute the first magnetic circuit, and the second magnet (6) and the magnetic conductive sheet (5) constitute the second magnetic circuit.

6. The loudspeaker of claim 1, further comprising:

and the edge pressing (9) is bonded with the reflector (8).

7. An automobile, comprising: a vehicle body and a loudspeaker according to any one of claims 1 to 6, the loudspeaker being fixedly connected to the vehicle body via the base.