WO2020258228A1

WO2020258228A1 - Loudspeaker box and electronic terminal device

Info

Publication number: WO2020258228A1
Application number: PCT/CN2019/093610
Authority: WO
Inventors: 任璋; 吴军
Original assignee: 瑞声声学科技(深圳)有限公司; 瑞声科技(新加坡)有限公司
Priority date: 2019-06-28
Filing date: 2019-06-28
Publication date: 2020-12-30
Also published as: CN210093527U

Abstract

The present application provides a loudspeaker box and an electronic terminal device. The loudspeaker box comprises a housing having a receiving space and a sound generation unit received in the receiving space. The housing comprises an upper casing having a first opening, a lower casing having a second opening, a first steel plate fixed on the upper casing and correspondingly covering the upper casing, and a second steel plate fixed to the lower casing and correspondingly covering the lower casing. The loudspeaker box further comprises a conductive elastic tab attached to the outer surface of the housing, one end of the conductive elastic tab being connected to the first steel plate, and the other end of the conductive elastic tab being connected to the second steel plate. The conductive elastic tab is connected and conducted to the first steel plate at the upper casing and the second steel plate at the lower casing, respectively. The function of simultaneous grounding of the first steel plate and the second steel plate can be implemented merely by grounding the conductive elastic tab or the first steel plate or the second steel plate. The present application effectively optimizes a grounding design solution of a whole unit, saves a design space of the whole unit, and thus is more reliable.

Description

Speaker box and electronic terminal equipment

Technical field

This application relates to the field of speakers, and in particular to a speaker box and electronic terminal equipment.

Background technique

With the rapid development of technology, audio equipment is becoming more and more popular, and people’s requirements for audio equipment are getting higher and higher. High-quality audio equipment is used in many fields, including GPS navigation, games, movies and TV, especially 5G With the advent of the times, the demand for audio equipment is also higher.

The speaker box in the related art includes an upper shell, the speaker box includes an outer shell having an accommodation space, and a sound emitting unit accommodated in the accommodation space, and the outer shell includes an upper shell having a first opening and a second opening And is assembled with the upper shell to form a lower shell that encloses the containing space, a first steel sheet fixed to the upper shell and correspondingly covering the first opening, and a first steel sheet fixed to the lower shell and correspondingly covering the first opening For the second steel sheet with two openings, the two steel sheets need to be grounded separately. Generally, conductive foam or FPC leads to the middle frame or back shell, which is prone to unstable resistance.

Therefore, it is necessary to provide a new speaker box and electronic terminal equipment to solve the above technical problems.

technical problem

The purpose of this application is to overcome the above technical problems and provide a speaker box and electronic terminal equipment with good acoustic performance.

Technical solutions

In order to solve the above technical problems, the present application provides a speaker box. The speaker box includes a housing with an accommodation space and a sound emitting unit accommodated in the accommodation space. The housing includes an upper shell with a first opening and The second opening is assembled with the upper shell to form a lower shell that encloses the containing space, a first steel sheet fixed to the upper shell and correspondingly covering the first opening, and a first steel sheet fixed to the lower shell and correspondingly covering The second steel sheet with the second opening, the speaker box further includes a conductive elastic sheet fixed on the outside of the housing, one end of the conductive elastic sheet abuts against the first steel sheet, and the other end is against the second steel sheet片 buttresses.

In a preferred embodiment of the speaker box provided by the present application, the conductive elastic sheet is U-shaped and includes a bottom plate, two side plates bent and extended from opposite ends of the bottom plate, and two side plates Relatively spaced and formed bayonet, the conductive elastic sheet is fastened to the housing through the bayonet, and the two side plates are closely attached to the first steel sheet and the second steel sheet respectively.

In a preferred embodiment of the speaker box provided by the present application, the inner surfaces of the two side plates of the conductive spring sheet are provided with bumps, and the first steel sheet and the second steel sheet are far away from the One side surface of the sounding monomer is provided with notches matched with the bumps, and the conductive elastic sheet is buckled and fixed to the housing.

In a preferred embodiment of the speaker box provided in the present application, the two side plates of the conductive elastic sheet are fixed to the first steel sheet and the second steel sheet by laser welding.

In a preferred embodiment of the speaker box provided by the present application, the number of the convex points is two or more.

In a preferred embodiment of the speaker box provided by the present application, the convex point is a circular convex point.

In a preferred embodiment of the speaker box provided by the present application, the conductive elastic sheet is an integrally formed structure.

In addition, this embodiment also provides an electronic terminal device, including the speaker box provided in this embodiment.

Beneficial effect

Compared with the related art, the speaker box provided in the present application is provided with U-shaped conductive elastic pieces, which are respectively connected to the first steel plate at the upper housing position and the second steel plate at the lower housing position. The grounding of the steel sheet or the second steel sheet can realize the grounding function of the first steel sheet and the second steel sheet at the same time, which effectively optimizes the grounding design scheme of the whole machine, and also saves the design space of the whole machine, and prevents the speaker box from affecting the electronics The antenna radiation function of the device improves the reliability and acoustic performance of the speaker box and the electronic terminal device.

Description of the drawings

In order to more clearly describe the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. Those of ordinary skill in the art can obtain other drawings based on these drawings without creative work, among which:

Figure 1 is an exploded schematic diagram of the speaker box provided by this application;

Figure 2 is a schematic diagram of the structure of the speaker box shown in Figure 1;

Figure 3 is a cross-sectional view of Figure 2 along the line III-III;

Fig. 4 is a schematic diagram of the structure of the grounding shrapnel in the speaker box shown in Fig. 1;

FIG. 5 is a schematic diagram of the three-dimensional structure of the electronic terminal device provided by this application.

The best mode of the invention

The technical solutions in the embodiments of the present application will be described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by a person of ordinary skill in the art without creative work shall fall within the protection scope of this application.

Please refer to Figure 1, Figure 2 and Figure 3 at the same time. Figure 1 is an exploded schematic diagram of the speaker box provided by this application, Figure 2 is a schematic structural diagram of the speaker box shown in Figure 1, and Figure 3 is a cross-section along the line III-III of Figure 2 Figure. The speaker box 100 includes a housing 1 having a housing space 10 and a sound emitting unit 3 received in the housing space 10. The housing 1 includes an upper housing 11 having a first opening 110, a second opening 130, and The upper shell 11 is assembled with a lower shell 13 enclosing the receiving space 10, a first steel sheet 15 fixed to the upper shell 11 and correspondingly covering the first opening 110, and a first steel sheet 15 fixed to the lower shell 13 and corresponding to The second steel sheet 17 covering the second opening 130 is characterized in that the speaker box 100 further includes a conductive elastic sheet 5 fixed on the outside of the housing 1, and one end of the conductive elastic sheet 5 is connected to the first steel sheet. 15 abuts, the other end abuts the second steel sheet 17, and the first steel sheet is grounded by the conductive spring 5 or the first steel sheet 15 or the second steel sheet 17 15 and the second steel sheet 17 at the same time grounding function.

It should be noted that, in this embodiment, the first steel sheet 15 and the second steel sheet 17 do not only refer to parts made of steel, but also include metal parts with conductive functions, such as copper sheets. This is all feasible.

Please refer to FIG. 4, which is a schematic diagram of the structure of the conductive elastic sheet in the speaker box shown in FIG. Specifically, the conductive elastic sheet 5 is U-shaped and includes a bottom plate 51 and two side plates 53 bent and extended from opposite ends of the bottom plate 51. The two side plates 53 are relatively spaced apart and form a bayonet 50, so The conductive elastic sheet 5 is fastened to the housing 1 through the bayonet 50, and the two side plates 53 are closely attached to the first steel sheet 15 and the second steel sheet 17, respectively. The U-shaped The shape of the opening of the conductive spring 5 is designed according to the inner buckle to ensure sufficient pre-wrap tightness.

The inner surfaces of the two side plates 53 of the conductive elastic sheet 5 are provided with bumps 56, and the first steel sheet 15 and the second steel sheet 17 are provided with a side surface away from the sound emitting monomer 3 In a notch (not shown) matching the bump 56, the conductive elastic sheet 5 is buckled and fixed to the housing 1.

The two side plates 53 of the conductive elastic sheet 5 are fixed to the first steel sheet 15 and the second steel sheet 17 by laser welding.

The number of the bumps 56 is two or more. In this embodiment, the number of the bumps on each side plate is four.

The bump 56 is a round bump.

The conductive elastic sheet 5 is an integrated molding structure, and the integrated molding mechanism simplifies the installation process and improves the stability of the overall structure.

Please refer to FIG. 5, which is a schematic diagram of the three-dimensional structure of the electronic terminal device provided by this application. This application also provides an electronic terminal device 200 that uses the aforementioned speaker box provided in this application.

Compared with the related art, the speaker box provided in the present application is provided with U-shaped conductive elastic sheets, which are respectively connected to the first steel sheet at the upper housing position and the second steel sheet at the lower housing position. The grounding of the steel sheet or the second steel sheet can realize the grounding function of the first steel sheet and the second steel sheet at the same time, which effectively optimizes the grounding design scheme of the whole machine, and also saves the design space of the whole machine, and prevents the speaker box from affecting the electronics The antenna radiation function of the device improves the reliability and acoustic performance of the speaker box and the electronic terminal device.

The above are only examples of this application, and do not limit the scope of this application. Any equivalent structure or equivalent process transformation made using the content of the description and drawings of this application, or directly or indirectly applied to other related technologies In the same way, all fields are included in the scope of patent protection of this application.

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Embodiments of the invention

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Industrial applicability

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Claims

A loudspeaker box, comprising a housing with a containing space and a sound emitting monomer contained in the containing space. The housing includes an upper shell with a first opening, a second opening and being assembled with the upper shell to form an enclosure The lower shell of the containing space, the first steel sheet fixed to the upper shell and correspondingly covering the first opening, and the second steel sheet fixed to the lower shell and correspondingly covering the second opening, are characterized in The speaker box further includes a conductive elastic sheet fixed on the outside of the housing, one end of the conductive elastic sheet abuts against the first steel sheet, and the other end abuts against the second steel sheet.
The speaker box according to claim 1, wherein the conductive elastic sheet is U-shaped and includes a bottom plate, and two side plates bent and extended from opposite ends of the bottom plate, and the two side plates are relatively spaced apart A bayonet is formed, the conductive elastic sheet is snap-fitted and fixed to the housing through the bayonet, and the two side plates are respectively close to the first steel sheet and the second steel sheet.
The speaker box according to claim 2, wherein the inner surfaces of the two side plates of the conductive spring sheet are provided with bumps, and the first steel sheet and the second steel sheet are far away from the sounding unit. One side surface of the body is provided with notches matching the convex points, and the conductive elastic sheet is buckled and fixed to the shell.
The speaker box according to claim 2, wherein the two side plates of the conductive elastic sheet are fixed to the first steel sheet and the second steel sheet by laser welding.
The speaker box according to claim 3, wherein the number of the convex points is two or more.
The speaker box according to claim 5, wherein the convex point is a circular convex point.
The speaker box according to claim 6, wherein the conductive elastic sheet is an integrally formed structure.
An electronic terminal device, characterized by comprising the speaker box according to any one of claims 1-7.
[Corrected according to Rule 26 26.07.2019]
[Corrected according to Rule 26 26.07.2019]