CN210927968U

CN210927968U - Speaker and electronic apparatus

Info

Publication number: CN210927968U
Application number: CN202020031580.1U
Authority: CN
Inventors: 杜娜; 朱守经
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2020-01-07
Filing date: 2020-01-07
Publication date: 2020-07-03
Anticipated expiration: 2030-01-07

Abstract

The present disclosure relates to a speaker and an electronic apparatus. The loudspeaker comprises a loudspeaker frame, the loudspeaker frame comprises an accommodating space, and two opposite end parts of the accommodating space are communicated; speaker monomer, speaker monomer is including vibration sound production main part, initiative vibrating diaphragm and a plurality of passive vibrating diaphragm, vibration sound production main part set up in the accommodating space, vibration sound production main part is used for promoting initiative vibrating diaphragm vibration, initiative vibrating diaphragm bond in speaker basin frame, in order to cover the tip of accommodating space one end, a plurality of passive vibrating diaphragms bond in speaker basin frame, in order to cover the tip of the accommodating space other end.

Description

Speaker and electronic apparatus

Technical Field

The present disclosure relates to the field of terminal technologies, and in particular, to a speaker and an electronic device.

Background

Currently, in order to increase the volume of an electronic device, an earphone and a speaker are generally configured for the electronic device. For the design of the speaker structure, in order to enlarge the sound cavity and improve the low-frequency effect of the speaker, the speaker can be filled with the suction powder, but the cost is high. Therefore, in a related art, a single diaphragm may be designed on the back cavity side of the speaker to increase the virtual sound cavity and improve the low-frequency effect, but the single diaphragm may vibrate due to the vibration of the main diaphragm, which results in a strong vibration sense and a poor effect of the housing of the electronic device.

SUMMERY OF THE UTILITY MODEL

The present disclosure provides a speaker and an electronic device to solve the disadvantages of the related art.

According to a first aspect of embodiments of the present disclosure, there is provided a speaker including:

the loudspeaker frame comprises an accommodating space, and two opposite end parts of the accommodating space are communicated;

speaker monomer, speaker monomer is including vibration sound production main part, initiative vibrating diaphragm and a plurality of passive vibrating diaphragm, vibration sound production main part set up in the accommodating space, vibration sound production main part is used for promoting initiative vibrating diaphragm vibration, initiative vibrating diaphragm bond in speaker basin frame, in order to cover the tip of accommodating space one end, a plurality of passive vibrating diaphragms bond in speaker basin frame, in order to cover the tip of the accommodating space other end.

Optionally, the number of the passive diaphragms is an integral multiple of the number of the active diaphragms.

Optionally, the number of the passive diaphragms is twice the number of the active diaphragms.

Alternatively to this, the first and second parts may,

the total compliance of the plurality of passive diaphragms is not less than the compliance of a single passive diaphragm equal to the sum of the radiation areas of the plurality of passive diaphragms.

Optionally, the speaker unit includes:

the voice coil is connected with the active vibrating diaphragm and used for pushing the active vibrating diaphragm to vibrate;

and the magnetic field generated by the magnetic circuit assembly and the magnetic field generated by the voice coil act together to push the voice coil to reciprocate.

Optionally, the magnetic circuit assembly includes a magnet, the speaker further includes a magnetic gap located between the magnet and the speaker frame, and an end of one end of the voice coil is located in the magnetic gap.

Optionally, the method further includes:

the cover body is connected to the loudspeaker basin frame and covers the active vibrating diaphragm.

Optionally, the active diaphragm or the passive diaphragm includes one of:

cone vibrating diaphragm, plastics vibrating diaphragm, metal vibrating diaphragm and synthetic fiber vibrating diaphragm.

According to a second aspect of embodiments of the present disclosure, there is provided an electronic device comprising a speaker as described in any one of the above.

Optionally, the electronic device includes a housing, and the speaker is fixed to the housing.

The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:

according to the embodiment, the passive diaphragm vibrates along with the vibration of the active diaphragm, so that the virtual rear cavity of the loudspeaker is realized, and the bass effect of the loudspeaker is effectively improved. Moreover, set up a plurality of passive vibrating diaphragms at speaker frame, for the technical scheme who sets up the passive vibrating diaphragm of monoblock among the correlation technique, because the radiating area of each passive vibrating diaphragm reduces, the compliance of each passive vibrating diaphragm reduces to the amplitude of each passive vibrating diaphragm reduces, is favorable to reducing the casing vibration that is provided with the electronic equipment of this speaker, promotes electronic equipment's the handle of gripping.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.

Fig. 1 is a schematic diagram illustrating a structure of a speaker according to an exemplary embodiment.

Fig. 2 is a schematic top view of a loudspeaker according to an example embodiment.

Fig. 3 is a schematic diagram of another speaker configuration according to an exemplary embodiment.

Fig. 4 is a schematic structural diagram of an electronic device according to an exemplary embodiment.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used in this disclosure and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present disclosure. The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination", depending on the context.

Fig. 1 is a schematic diagram illustrating a structure of a speaker 100 according to an exemplary embodiment. As shown in fig. 1, the speaker 100 may include a speaker frame 1 and a speaker unit 2, the speaker frame 1 includes an accommodating space 11, opposite ends of the accommodating space 11 penetrate through the accommodating space, that is, the speaker unit 2 which is hollow inside the speaker frame 1 may be partially disposed in the accommodating space 11 of the speaker frame 1. Specifically, the speaker unit 2 may include a vibration sound emission body 21, an active diaphragm 22, and a plurality of passive diaphragms 23. This vibration sound production main part 21 can set up in accommodating space 11 to this vibration sound production main part 21 can cooperate with initiative vibrating diaphragm 22, in order to promote this initiative vibrating diaphragm 22 vibration, promotes the air vibration, realizes the sound production. The active diaphragm 22 is bonded to the speaker frame 1 and covers an end portion of one end of the accommodating space 11, as shown in fig. 2, and the plurality of passive diaphragms 23 are bonded to the speaker frame 1 and cover an end portion of the other end of the accommodating space 11. Therefore, when the active diaphragm 22 vibrates, because the active diaphragm 22, the speaker frame 1 and the passive diaphragm 23 are sealed, the passive diaphragm 23 vibrates along with the vibration of the active diaphragm 22 due to the change of pressure, so as to realize the virtual back cavity of the speaker 100 and effectively improve the bass effect of the speaker 100. Moreover, set up a plurality of passive vibrating diaphragms 23 at speaker frame 1, for the technical scheme who sets up the passive vibrating diaphragm of monoblock in the correlation technique, because the radiating area of each passive vibrating diaphragm 23 reduces, the compliance of each passive vibrating diaphragm 23 reduces to the amplitude of each passive vibrating diaphragm reduces, is favorable to reducing the casing vibration of the electronic equipment who is provided with this speaker 100, promotes electronic equipment's the handle of gripping.

In this embodiment, the speaker frame 1 may include one or more brackets connected to each other, which is not limited by the present disclosure. The total compliance of the passive diaphragms 23 is not less than the compliance of a single passive diaphragm equal to the sum of the radiation areas of the passive diaphragms 23, so that the acoustic effect of the virtual back cavity brought by the single passive diaphragm can be brought by the cooperation of the passive diaphragms 23.

In the above embodiments, the number of the passive diaphragms 23 may be an integral multiple of the number of the active diaphragms 22, for example, as shown in fig. 1, the number of the passive diaphragms 23 may be twice the number of the active diaphragms 22, or in other embodiments, the number of the passive diaphragms 23 may also be three times, four times, etc. the number of the active diaphragms 22, which is not limited by the disclosure.

Based on the technical solution of the present disclosure, in an embodiment, as shown in fig. 3, the vibration sound-generating body 21 may further include a voice coil 211 and a magnetic circuit assembly 212, where the voice coil 211 is connected to the active diaphragm 22, and when the voice coil 211 reciprocates under the action of the magnetic circuit assembly 212, the active diaphragm 22 may be simultaneously pushed to vibrate, and the air is blown to vibrate, so as to generate sound. The magnetic circuit assembly 212 cooperates with the voice coil 211, and the magnetic field generated by the magnetic circuit assembly 212 and the magnetic field generated by the voice coil 211 cooperate to push the voice coil 212 to reciprocate, thereby realizing the reciprocating vibration of the active diaphragm 22. In another embodiment, the vibration sound-generating body 21 may include a piezoelectric ceramic plate, and the active diaphragm 22 is attached to the piezoelectric ceramic plate, and when the piezoelectric ceramic plate is subjected to a current, the piezoelectric ceramic plate may be stretched or compressed, so as to drive the active diaphragm 22 to perform reciprocating vibration, thereby generating sound. Of course, besides the voice coil and the piezoelectric ceramic plate disclosed in the above embodiments, the active diaphragm 22 may be driven to vibrate in other forms, which is not described in detail herein.

In this embodiment, also shown in fig. 3, the magnetic circuit assembly 212 may include a magnet, the speaker 100 may further include a magnetic gap 3 between the magnet and the inner side of the speaker frame 1, and an end of the voice coil 211 may be disposed in the magnetic gap 3, so that an interaction between the magnetic field of the voice coil 23 and the magnetic field generated by the magnet is enabled.

Still referring to fig. 3, the speaker 100 may further include a cover 4, the cover 4 may be connected to the speaker frame 1, and the cover 4 covers the active diaphragm 22 to protect the active diaphragm 22. The active diaphragm 22 may include one of a cone diaphragm, a plastic diaphragm, a metal diaphragm, and a synthetic fiber diaphragm; similarly, the passive diaphragm 23 may also include one of a cone diaphragm, a plastic diaphragm, a metal diaphragm, and a synthetic fiber diaphragm, and the materials of the active diaphragm 22 and the passive diaphragm 23 may be the same or different, which is not limited in this disclosure.

Based on the technical solution of the present disclosure, as shown in fig. 4, the present disclosure further provides an electronic device 200, where the electronic device 200 may include the speaker 100 described in any of the above embodiments. The electronic device 200 may further include a housing 201, the speaker 100 may be fixed on the housing 201, and the housing 201 may further be provided with a sound hole 2011. Since the loudspeaker 100 realizes the effect of a single passive diaphragm through a plurality of passive diaphragms 23, the amplitude of each passive diaphragm 23 is reduced, so that the vibration of the upper casing 201 of the electronic device 200 can also be reduced, and the hand-held comfort of the electronic device 200 is optimized.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A loudspeaker, comprising:

2. The loudspeaker of claim 1, wherein the number of passive diaphragms is an integer multiple of the number of active diaphragms.

3. A loudspeaker according to claim 2, wherein the number of passive diaphragms is twice the number of active diaphragms.

4. The loudspeaker of claim 1 wherein the total compliance of the plurality of passive diaphragms is no less than the compliance of a single passive diaphragm equal to the sum of the radiating areas of the plurality of passive diaphragms.

5. The speaker of claim 1, wherein the vibrating sound emitting body comprises:

6. The loudspeaker of claim 5, wherein the magnetic circuit assembly comprises a magnet, the loudspeaker further comprising a magnetic gap between the magnet and the loudspeaker frame, an end of the voice coil at one end being located within the magnetic gap.

7. The loudspeaker of claim 1, further comprising:

8. The loudspeaker of claim 1, wherein the active diaphragm or the passive diaphragm comprises one of:

9. An electronic device, characterized in that it comprises a loudspeaker according to any one of claims 1-8.

10. The electronic device of claim 9, wherein the electronic device includes a housing, and wherein the speaker is secured to the housing.