CN216960174U - Sound production assembly and electronic equipment - Google Patents

Abstract

The utility model provides a sound production subassembly and electronic equipment belongs to electronic equipment technical field. The sounding component comprises a middle frame, a magnetic piece and a loudspeaker box; the loudspeaker box and the magnetic part are both positioned in the middle frame, the loudspeaker box comprises a loudspeaker inner core and a shell, and the loudspeaker inner core is positioned in the shell; the magnetic part is positioned outside the shell, and the polarity of the magnetic part is opposite to that of the surface, opposite to the magnet, in the loudspeaker core. Through all setting up speaker box and magnetic part in the center, set up the magnetic part in the outside of speaker box, the one side polarity that the magnet in magnetic part and the speaker kernel is relative is opposite, makes the magnetic field that the magnet in magnetic part and the speaker kernel produced superpose mutually, and the magnetic field that the increase sound production subassembly produced improves the sound production volume of speaker box, promotes the sound production sensitivity of speaker box.

Description

Sound production assembly and electronic equipment

Technical Field

The embodiment of the disclosure relates to the technical field of electronic equipment, in particular to a sounding component and electronic equipment.

Background

With the continuous improvement of the technology level, the audio playing requirements of users on electronic devices are also higher and higher, and the speaker box is a main audio playing functional component inside the electronic devices.

Loudspeaker enclosures generally include an enclosure and a loudspeaker core located within the enclosure, dividing the interior of the enclosure into a front volume and a back volume. The loudspeaker kernel usually includes magnet, voice coil loudspeaker voice coil and vibrating diaphragm, and magnet is located the back chamber, and the voice coil loudspeaker voice coil links to each other with the vibrating diaphragm, and the voice coil loudspeaker voice coil produces the interact with magnet after the circular telegram to drive vibrating diaphragm vibration sound production.

In the related art, the sound production loudness of the loudspeaker box is smaller, the volume of the magnet is increased, and the loudspeaker box can produce sound with larger loudness. However, it is difficult to provide a magnet having a larger size because of the limitation of the thickness of the electronic device and the space of the whole device.

SUMMERY OF THE UTILITY MODEL

The utility model provides a sound production subassembly and electronic equipment is favorable to improving the sound production volume of speaker box. The technical scheme at least comprises the following scheme:

in one aspect, embodiments of the present disclosure provide a sound generating assembly, which includes a middle frame, a magnetic member, and a speaker box;

the loudspeaker box and the magnetic part are both positioned in the middle frame, the loudspeaker box comprises a loudspeaker inner core and a shell, and the loudspeaker inner core is positioned in the shell;

the magnetic part is positioned outside the shell, and the polarity of the magnetic part is opposite to that of the surface, opposite to the magnet, in the loudspeaker core.

Optionally, one side of the support part of the middle frame, which is close to the speaker box, is provided with a mounting groove, the speaker box is opposite to the mounting groove, and the magnetic part is located in the mounting groove.

Optionally, the support portion of the middle frame has an opening, the speaker box is opposite to the opening, and the magnetic member is located in the opening.

Optionally, the outer surface of the magnetic member is not higher than the flat surface of the support portion on the side away from the speaker box.

Optionally, the housing has a limiting groove, the limiting groove is located on a surface of the housing close to the supporting portion, and the magnetic part is partially located in the limiting groove.

Optionally, the magnetic member is bonded to the middle frame.

Optionally, the middle frame is an insert molding piece, and the magnetic piece is located inside the support portion of the middle frame.

Optionally, the inside of the housing is divided into a first cavity and a second cavity by a diaphragm of the speaker core, the magnet is located in the first cavity, and the magnetic member is located on one side of the first cavity, which is far away from the second cavity.

Optionally, the inside of the housing is divided into a first cavity and a second cavity by a diaphragm of the speaker core, the magnet is located in the first cavity, and the magnetic member is located on a side of the second cavity far away from the first cavity.

On the other hand, an embodiment of the present disclosure further provides an electronic device, where the electronic device includes a battery cover and the sound generating assembly as described in the foregoing aspect, the battery cover is disposed opposite to the middle frame, and the speaker box is located between the battery cover and the middle frame.

The beneficial effect that technical scheme that this disclosure embodiment provided brought includes at least:

in the embodiment of the disclosure, the loudspeaker box and the magnetic part are arranged in the middle frame, the magnetic part is arranged outside the loudspeaker box, the magnetic part and the magnet in the loudspeaker kernel have opposite polarities, the magnetic field generated by the magnetic part and the magnetic field generated by the magnet in the loudspeaker kernel can be superposed, the magnetic field generated by the sound production assembly is increased, the sound production volume of the loudspeaker box is increased, and the sound production sensitivity of the loudspeaker box is improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a sound emitting assembly of an electronic device according to an embodiment of the present disclosure;

FIG. 2 is a corresponding cross-sectional view at dashed line m in FIG. 1;

fig. 3 is a schematic structural diagram of a sound emitting assembly provided in an embodiment of the present disclosure;

fig. 4 is a schematic structural diagram of a sound emitting assembly provided in the embodiment of the present disclosure;

fig. 5 is a schematic structural diagram of a sound emitting assembly provided in an embodiment of the present disclosure;

fig. 6 is a schematic structural diagram of a sound generating assembly provided in an embodiment of the present disclosure;

fig. 7 is a schematic cross-sectional view of a sound emitting assembly provided by an embodiment of the present disclosure;

fig. 8 is a schematic cross-sectional view of a sound emitting assembly provided by an embodiment of the present disclosure;

fig. 9 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure.

The various reference numbers in the drawings are illustrated below:

10-middle frame;

11-a support; 12-mounting grooves; 13-opening; 14-a frame-like portion;

20-a magnetic member;

30-a loudspeaker enclosure;

31-a speaker core; 311-a magnet; 312-a diaphragm; 313-a voice coil; 314-a first spring washer; 315-a second spring washer; 316-magnetic gap;

32-a housing; 32 a-a first cavity; 32 b-a second cavity;

321-a limiting groove; 322-sound outlet;

40-dust screen;

100-cell cover;

200-a sound emitting component.

Detailed Description

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of "first," "second," "third," and similar terms in the description and claims of the present disclosure are not intended to indicate any order, quantity, or importance, but rather are used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprise" or "comprises", and the like, means that the element or item listed before "comprises" or "comprising" covers the element or item listed after "comprising" or "comprises" and its equivalents, and does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, which may also change accordingly when the absolute position of the object being described changes.

To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of a sound generating assembly of an electronic device according to an embodiment of the present disclosure. The electronic device may be, but is not limited to, a mobile phone, a tablet computer, a notebook computer.

As shown in fig. 1, the sound emitting assembly includes: a middle frame 10, a magnetic member 20 and a speaker box 30. In the embodiment of the present disclosure, only a part of the structure of the middle frame 10 is shown, and the shape of the middle frame 10 may be different for different electronic devices.

Wherein, the speaker box 30 and the magnetic member 20 are both located in the middle frame 10, the speaker box 30 includes a speaker core 31 and a shell 32, and the speaker core 31 is located in the shell 32. The magnetic member 20 is located outside the housing 32, and the magnetic member 20 has a polarity opposite to that of the magnet 311 in the speaker core 31.

In the embodiment of the disclosure, the loudspeaker box and the magnetic part are arranged in the middle frame, the magnetic part is arranged outside the loudspeaker box, the magnetic part and the magnet in the loudspeaker kernel have opposite polarities, the magnetic field generated by the magnetic part and the magnetic field generated by the magnet in the loudspeaker kernel can be superposed, the magnetic field generated by the sound production assembly is increased, the sound production volume of the loudspeaker box is increased, and the sound production sensitivity of the loudspeaker box is improved.

The middle frame 10 is used to support, fix and protect the magnetic member 20 and the speaker box 30. The speaker box 30 and the magnetic member 20 are located inside the middle frame 10. Illustratively, the middle frame 10 includes a support portion 11 and a frame-shaped portion 14, the frame-shaped portion 14 surrounds the support portion 11, and the speaker box 30 is connected to the support portion 11 of the middle frame 10.

The speaker box 30 is used to convert the received electrical signals into acoustic signals, thereby playing sound. When the voice coil of the speaker core 31 receives the electrical signal, the voice coil receives an acting force in the magnetic field, so that the voice coil reciprocates, and the diaphragm of the speaker core 31 is driven to vibrate and sound.

The magnetic member 20 is located outside the speaker box 30, and a first pole of the magnetic member 20 is opposite to a second pole of the magnet 311 in the speaker core 31, the first pole being one of an N pole and an S pole, and the second pole being the other of the N pole and the S pole. On the surface of the housing 32 opposite to the support 11, the orthographic projection of the magnetic member 20 and the orthographic projection of the magnet 311 at least partially overlap.

In the embodiment of the present disclosure, on the surface of the housing 32 opposite to the support 11, the geometric center of the orthographic projection of the magnetic member 20 and the geometric center of the orthographic projection of the magnet 311 coincide to increase the opposing area of the magnetic member 20 and the magnet 311. The magnetic poles of the magnetic member 20 and the magnet 311 are different, for example, the N pole of the magnetic member 20 is opposite to the S pole of the magnet 311; or the S-pole of the magnetic member 20 is opposite to the N-pole of the magnet 311.

In some examples, the magnetic member 20 is a permanent magnet, and in other examples, the magnetic member 20 may also be an electromagnet.

In the embodiment of the present disclosure, the magnetic member 20 is a block structure. In other examples, the magnetic member 20 may also be in other shapes, such as: a cylindrical structure. The shape and size of the magnetic member can be limited according to actual needs, and the disclosure is not limited herein.

Optionally, the magnetic member 20 is bonded to the middle frame 10. The magnetic part 20 is installed by a bonding method, the operation is simple and convenient, and the assembly efficiency of the sounding assembly can be improved.

Fig. 2 is a schematic cross-sectional view corresponding to the dashed line m in fig. 1. As shown in fig. 2, the magnetic member 20 is located on the side of the support portion 11 of the middle frame 10 close to the speaker box 30, and is interposed between the support portion 11 and the speaker box 30.

Fig. 3 is a schematic structural diagram of a sound emitting assembly provided in an embodiment of the present disclosure. In contrast to the sound generating module shown in fig. 2, as shown in fig. 3, in the sound generating module shown in fig. 3, one surface of the support portion 11 of the middle frame 10 adjacent to the speaker box 30 has a mounting groove 12, the speaker box 30 is opposite to the mounting groove 12, and the magnetic member 20 is located in the mounting groove 12.

By providing the mounting groove 12 opposing the speaker box 30 so that the magnetic member 20 is mounted in the mounting groove 12, the magnetic member 20 can be made to oppose the magnet 311. The installation of the magnetic member 20 by the installation groove 12 is more stable. Compared with the structure shown in fig. 2, since the magnetic member 20 is partially located in the mounting groove 12, the thickness of the sound generating component is advantageously reduced, and the structure of the electronic device is more compact.

Alternatively, the outer surface of the magnetic member 20 is not higher than the flat surface of the side of the support portion 11 away from the speaker box 30. That is to say, magnetic member 20 is placed in mounting groove 12, and magnetic member 20 is wholly located mounting groove 12 to can further reduce the thickness of sound generating component, be favorable to electronic equipment's frivolousness.

In some examples, the magnetic member 20 is adhered to the mounting groove 12, and in other examples, the magnetic member 20 may be fixed to the mounting groove 12 by a snap, so that the magnetic member 20 only needs to be fixed to avoid loosening the magnetic member 20.

Fig. 4 is a schematic structural diagram of a sound emitting assembly provided in an embodiment of the present disclosure. In contrast to the sound emitting module shown in fig. 2, as shown in fig. 4, in the sound emitting module shown in fig. 4, the support portion 11 of the center frame 10 has an opening 13, the speaker box 30 is opposed to the opening 13, and the magnetic member 20 is located in the opening 13.

The magnetic part 20 is installed by adopting the opening 13, the space is larger, and the magnetic part 20 with larger volume can be arranged, so that a stronger magnetic field is provided, the situation that the volume of the magnetic part 20 is too small, and the generated magnetic field is too small to effectively improve the volume of the loudspeaker box 30 is avoided.

Fig. 5 is a schematic structural diagram of a sound emitting assembly provided in an embodiment of the present disclosure. Referring to fig. 5, the magnetic member 20 does not extend beyond a surface of the support 11 away from the speaker box 30. To prevent the magnetic member 20 from interfering with the mounting of other structures on the side of the support portion 11 remote from the speaker box 30.

Referring to fig. 4, the housing 32 has a limiting groove 321, the limiting groove 321 is located on a surface of the housing 32 close to the supporting portion 11, and the magnetic member 20 is partially located in the limiting groove 321. The limiting groove 321 can limit the magnetic part 20, so that the magnetic part 20 is more stably mounted. The arrangement of the limiting groove 321 also enables the installation space of the magnetic element 20 to be larger, and the magnetic element 20 with larger volume can be arranged, so that a stronger magnetic field is provided.

In some examples, the magnetic member 20 is adhered in the limiting groove 321, and in other examples, the magnetic member 20 may be fixed in the limiting groove 321 by snapping.

Fig. 6 is a schematic structural diagram of a sound emitting assembly provided in an embodiment of the present disclosure. As shown in fig. 6, the middle frame 10 is an insert-molded product, and the magnetic member 20 is located inside the support portion 11 of the middle frame 10. Thereby, the magnetic member 20 is more firmly connected to the middle frame 10, and the reliability of the magnetic member 20 is improved. Furthermore, the magnetic member 20 is injected into the supporting portion 11 of the middle frame 10, so that the structure of the electronic device can be more compact, which is beneficial to the light weight and the thin weight of the electronic device.

The insert molding part is a structural part manufactured by an in-mold injection molding process, and before injection molding, the magnetic part 20 is placed in a mold and then injection molding is performed, so that the magnetic part 20 is positioned inside the middle frame 10.

Fig. 7 is a schematic cross-sectional view of a sound emitting assembly provided in an embodiment of the present disclosure. As shown in fig. 7, the diaphragm 312 of the speaker core 31 divides the interior of the housing 32 into a first cavity 32a and a second cavity 32b, the magnet 311 is located in the first cavity 32a, and the magnetic member 20 is located on a side of the first cavity 32a away from the second cavity 32 b.

The diaphragm 312 of the speaker core 31 is connected to the inner sidewall of the case 32 to divide the inside of the case 32 into a first cavity 32a and a second cavity 32b, the voice coil 313 of the speaker core 31 is located in the first cavity 32a, the voice coil 313 is connected to the diaphragm 312, and the magnet 311 is located in the voice coil 313.

When the voice coil 313 receives the current signal, the voice coil 313 receives the lorentz force in the magnetic field generated by the magnet 311 and the magnetic member 20, and is displaced. The direction of the current changes and the lorentz force applied to the voice coil 313 also changes direction. The voice coil 313 is driven to reciprocate by the input of the changing current, so as to drive the diaphragm 312 to vibrate and generate sound, and the sound is transmitted out through the second cavity 32 b.

Referring to fig. 7, the magnetic member 20 is located on a side of the first cavity 32a away from the second cavity 32b, the magnetic member 20 and the magnet 311 are located on the same side of the diaphragm 312, after the magnetic fields generated by the magnetic member 20 and the magnet 311 are superimposed, the magnetic field of the sound generating assembly is enhanced, and when the same current is input, the vibration amplitude of the diaphragm 312 is larger, so that the sound generating volume of the speaker box 30 can be increased, and the sound generating sensitivity of the speaker box is improved.

Fig. 8 is a schematic cross-sectional view of a sound emitting assembly provided in an embodiment of the present disclosure. As shown in fig. 8, in the sounding component, the magnet 311 is located in the first cavity 32a, and the magnetic member 20 is located on a side of the second cavity 32b away from the first cavity 32 a. That is, the magnetic member 20 and the magnet 311 are located at two sides of the diaphragm 312, and after the magnetic fields generated by the magnetic member 20 and the magnet 311 are superimposed, the magnetic field of the sound generating component is increased, and when the same current is input, the vibration frequency of the diaphragm 312 is increased, so that the sound generating volume of the speaker box 30 can be increased.

Referring to fig. 8, the speaker box 30 further includes a first spring washer 314 and a second spring washer 315, the first spring washer 314 is located on a side of the magnet 311 close to the diaphragm 312 and connected to the magnet 311, the second spring washer 315 is located on a side of the magnet 311 away from the diaphragm 312, the magnet 311 is located in the second spring washer 315, the magnet 311 and the second spring washer 315 form a magnetic gap 316, and the voice coil 313 is partially located in the magnetic gap 316.

The first spring washer 314 and the second spring washer 315 are used for magnetic conduction, so that a uniform magnetic field is formed in the magnetic gap 316, and the voice coil 313 can uniformly vibrate, thereby driving the diaphragm 312 to uniformly vibrate.

Referring to fig. 8, the housing 32 further has a sound outlet 322, the sound outlet 322 is located on the sidewall of the housing 32, and the second cavity 32b is communicated with the sound outlet 322. The sound outlet hole 322 is used for communicating the second cavity 32b with the external environment, and the sound emitted by the speaker core 31 is transmitted to the sound outlet hole 322 through the second cavity 32b and then transmitted to the external environment.

Referring to fig. 8, the sound emitting assembly further includes a dust screen 40, and the dust screen 40 is located in the middle frame 10 and is opposite to the sound emitting holes 322 of the speaker box 30. The dust screen 40 can keep apart the impurity in the external environment in the dust screen 40 outside, avoids impurity such as dust to enter into and influences the work of speaker kernel 31 in the second cavity 32b, has increased the guard action to speaker box 30.

Fig. 9 is a schematic structural diagram of an electronic device provided in an embodiment of the present disclosure. The electronic device may be, but is not limited to, a mobile phone, a tablet computer, a notebook computer. In the embodiments of the present disclosure, a mobile phone is taken as an example for explanation. As shown in fig. 9, the electronic device includes a battery cover 100 and a sound generating assembly 200, the battery cover 100 is disposed opposite to the middle frame 10, and the speaker box 30 is located between the battery cover 100 and the middle frame 10.

By arranging the speaker box 30 and the magnetic part 20 in the middle frame 10, the speaker box 30 comprises a speaker core 31 and a shell 32, the speaker core 31 is positioned in the shell 32, the magnetic part 20 is arranged outside the shell 32, and the magnetic part 20 and the opposite side of the magnet 311 in the speaker core 31 have opposite polarities, so that the magnetic field generated by the magnetic part 20 and the magnetic field generated by the magnet 311 in the speaker core 31 can be superposed, the magnetic field generated by the sound-generating component 100 is increased, the sound-generating volume of the speaker box 30 is increased, and the sound-generating sensitivity of the speaker box 30 is improved.

The above description is only an example of the present application and should not be taken as limiting, and any modifications, equivalent switches, improvements, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (10)

1. A sound emitting assembly, comprising: a middle frame (10), a magnetic piece (20) and a loudspeaker box (30);

the loudspeaker box (30) and the magnetic member (20) are both located in the middle frame (10), the loudspeaker box (30) comprises a loudspeaker core (31) and a shell (32), and the loudspeaker core (31) is located in the shell (32);

the magnetic part (20) is positioned outside the shell (32), and the polarity of the magnetic part (20) is opposite to that of the surface, opposite to the magnet (311) in the loudspeaker core (31).

2. The sound generating assembly according to claim 1, wherein the support portion (11) of the center frame (10) has a mounting groove (12) on a side thereof adjacent to the speaker box (30), the speaker box (30) is opposite to the mounting groove (12), and the magnetic member (20) is located in the mounting groove (12).

3. The sound emitting assembly according to claim 1, wherein the support portion (11) of the center frame (10) has an opening (13), the speaker box (30) is opposed to the opening (13), and the magnetic member (20) is located in the opening (13).

4. A sound emitting assembly according to claim 3, wherein the outer surface of the magnetic member (20) is not higher than the flat surface of the support portion (11) on the side remote from the speaker box (30).

5. The sound generating assembly according to claim 3 or 4, characterized in that the housing (32) has a limiting groove (321), the limiting groove (321) being located on a surface of the housing (32) near the support portion (11), the magnetic member (20) being partially located in the limiting groove (321).

6. The sound emitting assembly of claim 1, wherein the magnetic member (20) is bonded to the center frame (10).

7. The sound emitting assembly according to claim 1, characterized in that the center frame (10) is an insert molding, and the magnetic member (20) is located inside the support portion (11) of the center frame (10).

8. The sound generating assembly according to any one of claims 1 to 4 and 6 to 7, wherein the diaphragm (312) of the speaker core (31) divides the interior of the housing (32) into a first cavity (32a) and a second cavity (32b), the magnet (311) is located in the first cavity (32a), and the magnetic member (20) is located on a side of the first cavity (32a) away from the second cavity (32 b).

9. The sound generating assembly according to any one of claims 1 to 4 and 6 to 7, wherein the diaphragm (312) of the speaker core (31) divides the interior of the housing (32) into a first cavity (32a) and a second cavity (32b), the magnet (311) is located in the first cavity (32a), and the magnetic member (20) is located on a side of the second cavity (32b) away from the first cavity (32 a).

10. An electronic device, comprising: a battery cover (100) and a sound generating assembly (200) according to any of claims 1-9, the battery cover (100) being arranged opposite to the center frame (10), the speaker box (30) being located between the battery cover (100) and the center frame (10).

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