WO2021168870A1

WO2021168870A1 - Loudspeaker box and terminal device

Info

Publication number: WO2021168870A1
Application number: PCT/CN2020/077401
Authority: WO
Inventors: 李健; 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: 2020-02-24
Filing date: 2020-03-02
Publication date: 2021-09-02
Also published as: CN211531324U

Abstract

The present utility model provides a loudspeaker box and a terminal device. The loudspeaker box comprises a housing having an accommodation space, a sound production unit dividing the accommodation space into a front cavity and a rear cavity, an air-permeable isolation member accommodated in the rear cavity, and a frame sleeved on the sound production unit to support the air-permeable isolation member; the sound production unit is provided with a bonding pad; the loudspeaker box further comprises a flexible circuit board corresponding to the bonding pad and accommodated in the rear cavity; the frame is provided with a through-hole; and the loudspeaker box further comprises a conduction connector accommodated in the through-hole, one end of the conduction connector is in contact with the bonding pad, and the other end of the conduction connector is in contact with the flexible circuit board. The technical solution solves the technical problem that the normal operation of loudspeaker boxes is influenced due to the interference between the flexible circuit board and the frame when the bonding pad in the sound production unit is connected to the flexible circuit board in the prior art.

Description

Speaker box and terminal equipment

Technical field

The utility model relates to the technical field of sound-to-electric conversion, in particular to a speaker box and terminal equipment.

Background technique

With the advent of the mobile Internet era, the number of smart mobile devices continues to rise. Among many mobile devices, mobile phones are undoubtedly the most common and most portable mobile terminal devices. At present, the functions of mobile phones are extremely diverse, one of which is high-quality music functions. Therefore, speaker boxes for playing sound are widely used in today's smart mobile devices.

The speaker box of the related art includes a housing with a storage space, a sounding unit that divides the storage space into a front cavity and a rear cavity, a breathable spacer accommodated in the rear cavity, and a sounding unit sheathed to support the breathable isolation The frame of the piece, so as to maximize the virtual sound cavity of the speaker. However, when the bonding pads in the sound generating unit are connected to the flexible circuit board, the flexible circuit board and the frame will interfere, which affects the normal operation of the speaker box.

Therefore, it is necessary to provide a speaker box.

technical problem

The purpose of the present invention is to provide a speaker box and terminal equipment to solve the problem of interference between the flexible circuit board and the frame when the bonding pad in the sound-producing unit is connected to the flexible circuit board in the prior art, which affects the normal operation of the speaker box. Technical issues.

Technical solutions

The technical scheme of the utility model is as follows:

A loudspeaker box, comprising a housing with a containing space, a sounding unit that divides the containing space into a front cavity and a rear cavity, a breathable spacer contained in the rear cavity, and a sounding unit sleeved on the sounding unit In order to support the frame of the air-permeable spacer, the sound-producing unit is provided with pads, the speaker box further includes a flexible circuit board corresponding to the pads and accommodated in the rear cavity, and the frame is provided with a through hole. The speaker box further includes a conductive connector received in the through hole, one end of the conductive connector is in contact with the pad, and the other end of the conductive connector is in contact with the flexible The circuit boards are in contact.

Further, the sound emitting unit includes two pads arranged at intervals along the width direction of the sound emitting unit, and the frame extends toward the inside thereof to form two supporting portions corresponding to the two pads one by one. , The support part is provided with the through hole.

Further, the flexible circuit board includes a first conductive portion for electrically connecting with the conductive connector, a second conductive portion for electrically connecting with the outside, and a first conductive portion for connecting to the first conductive portion And the connection part of the second conducting part.

Further, the first conducting portion includes a first main body portion placed on the frame and two spring legs extending from two ends of the first main body portion toward the two supporting portions, respectively.

Further, the orthographic projection of the elastic foot along the vibration direction of the sound emitting unit falls within the orthographic projection of the support portion along the vibration direction of the sound emitting unit.

Further, the spring leg is provided with a through hole arranged coaxially with the through hole, and the conductive connector includes a second main body portion located in the through hole and a direction from the second main body portion. And extend into the first contact portion of the via hole.

Further, the first contact portion penetrates the through hole.

Further, the conductive connector further includes a second contact portion extending from the second body portion toward the pad, and the second contact portion is in contact with the pad.

Further, the conductive connector is a spring thimble.

Further, a terminal device includes the aforementioned speaker box.

Beneficial effect

The beneficial effect of the utility model is that the flexible circuit board and the frame are both contained in the back cavity, therefore, by opening a through hole in the frame and adding a conductive connector to accommodate it in the through hole, one end of the connector is connected It is in contact with the pad in the vocal unit, and the other end of the conductive connector is in contact with the flexible circuit board, thereby realizing the connection between the pad and the flexible circuit board. Using this technical solution solves the technical problem in the prior art that when the bonding pad in the sounding unit is connected to the flexible circuit board, the flexible circuit board and the frame will interfere, which affects the normal operation of the speaker box.

Description of the drawings

Figure 1 is a schematic diagram of the overall structure of a speaker box of the utility model;

Fig. 2 is a schematic diagram of an exploded structure of Fig. 1;

Figure 3 is an enlarged schematic diagram of the conductive connector;

Figure 4 is an enlarged schematic diagram of a flexible circuit board;

Figure 5 is an enlarged schematic diagram of the frame;

Figure 6 is a cross-sectional view in the direction of A-A in Figure 1;

Fig. 7 is a partial enlarged view of C in Fig. 6.

Embodiments of the present invention

It should be noted that the embodiments in the application and the features in the embodiments can be combined with each other if there is no conflict. Hereinafter, the present utility model will be described in detail with reference to the drawings and the embodiments.

It should be pointed out that the following detailed descriptions are all illustrative and are intended to provide further explanations for the application. Unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs.

It should be noted that the terms used here are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should also be understood that when the terms "comprising" and/or "including" are used in this specification, they indicate There are features, steps, operations, devices, components, and/or combinations thereof.

Please refer to Figure 1 to Figure 7 at the same time, where Figure 1 is a schematic diagram of the overall structure of a speaker box of the present invention; Figure 2 is a schematic diagram of the exploded structure of the speaker box shown in Figure 1; Figure 3 is an enlarged view of the conduction connector 60 Figure 4 is an enlarged schematic view of the flexible circuit board 50; Figure 5 is an enlarged schematic view of the frame 42; Figure 6 is a cross-sectional view in the AA direction in Figure 1;

The utility model provides a loudspeaker box, referring to Figures 1 to 3, the loudspeaker box includes a housing 10 with a receiving space, a sounding monomer 30 that divides the receiving space into a front cavity 21 and a rear cavity 22, and is accommodated in the rear The air-permeable spacer 41 in the cavity 22 and the frame 42 sleeved on the sound-producing unit 30 to support the air-permeable spacer 41, the sound-producing unit 30 is provided with a pad 31, and the speaker box also includes a corresponding pad 31 that is housed in the rear cavity 22 The frame 42 of the flexible circuit board 50 is provided with a through hole 421 therethrough. The speaker box also includes a conductive connector 60 received in the through hole 421. One end of the conductive connector 60 is in contact with the pad 31, and the conductive connector The other end of 60 is in contact with flexible circuit board 50.

2 and 6 specifically, the housing 10 includes an upper cover 11 and a lower cover 12, the upper cover 11 and the lower cover 12 are fixedly connected to enclose a receiving space, and the sound emitting monomer 30 is received in the receiving space and divides the receiving space into Front chamber 21 and rear chamber 22. The sound-producing monomer 30 and the upper cover 11 enclose a front cavity 21, and the side of the upper cover 11 is provided with a sound outlet 111 communicating with the front cavity 21 for realizing sound transmission of the speaker box. The sounding monomer 30, the lower cover 12 and the upper cover 11 jointly enclose the rear cavity 22. The rear cavity 22 is provided with a breathable spacer 41. The breathable spacer 41 is supported by a frame 42 sleeved on the sounding monomer 30, and is located in the rear cavity. 22 is filled with sound-absorbing material. The frame 42 and the air-permeable spacer 41 isolate the sound-absorbing material from the sound-producing monomer 30 to avoid entering the sound-producing monomer 30; when the rear cavity 22 is filled with sound-absorbing materials, the entire rear cavity 22 is available It fills and forms a virtual sound cavity, which effectively improves the low-frequency acoustic performance of the speaker box.

In this embodiment, both the flexible circuit board 50 and the frame 42 are received in the rear cavity 22. Therefore, by opening a through hole 421 in the frame 42 and adding a conductive connector 60 to receive it in the through hole 421, One end of the through connector 60 is in contact with the pad 31 in the sound emitting unit 30, and the other end of the through connector 60 is in contact with the flexible circuit board 50, so as to realize the conduction between the pad 31 and the flexible circuit board 50. Using this technical solution solves the technical problem in the prior art that when the bonding pad 31 in the sounding unit 30 is connected to the flexible circuit board 50, the flexible circuit board 50 and the frame 42 will interfere, which affects the normal operation of the speaker box.

2 and 5, the sound emitting unit 30 includes two pads 31 spaced apart along the width direction of the sound emitting unit 30, and the frame 42 extends toward the inside thereof to form two supporting portions 422 corresponding to the two pads 31 one by one. A through hole 421 is opened on the supporting portion 422. In the case where the air-permeable spacer 41 covers the sound emitting unit 30, the connection between the pad 31 and the flexible circuit board 50 is achieved by adding two conductive connectors 60. At the same time, the frame 42 extends toward the inside to form two supporting portions 422, and the two supporting portions 422 correspond to the two pads 31 one-to-one. By providing the supporting portions 422, the frame 42 can be opened corresponding to the pads 31. The through hole 421 facilitates the conduction function of the conduction connector 60.

Further, the air-permeable spacer 41 forms a gap 411 corresponding to the support portion 422, as shown in FIG. The materials.

2 and 4, the flexible circuit board 50 includes a first conductive portion 51 for electrical connection with the conductive connector 60, a second conductive portion 52 for electrical connection with the outside world, and a first conductive portion 52 for connecting to the first conductive portion. The connecting portion 53 of the through portion 51 and the second conductive portion 52. The first conducting portion 51 is located on the side of the frame 42 away from the front cavity 21 to be connected to the conducting connector 60; the second conducting portion 52 extends out of the housing 10 to be electrically connected to an external circuit, and the first conducting portion 51 It is connected to the second conducting portion 52 through the connecting portion 53 to be accommodated in the rear cavity 22.

Further, the first conducting portion 51 includes a first main body portion 511 placed on the frame 42 and two spring feet 512 respectively extending from two ends of the first main body portion 511 toward the two supporting portions 422. The first conducting portion 51 is composed of a first main body portion 511 placed on the frame 42 and two spring legs 512 placed on the supporting portion 422, which ensures that the conducting connector 60 can contact the spring legs 512 through the through hole 421 , The structural stability of the entire first conducting portion 51 is also ensured, and the material used for the first conducting portion 51 is reduced.

Preferably, referring to FIG. 2, the orthographic projection of the elastic foot 512 along the vibration direction of the sounding unit 30 falls within the orthographic projection of the support portion 422 along the vibration direction of the sounding unit 30. The size of the position of the elastic foot 512 is set so that the size of the supporting portion 422 is larger than the size of the elastic foot 512, so as to ensure that the supporting portion 422 can stably support the entire elastic foot 512.

Further, referring to FIGS. 4, 6 and 7, the spring foot 512 is provided with a through hole 512a coaxially arranged with the through hole 421, and the through connector 60 includes a second body portion 61 and a second body located in the through hole 421. The first contact portion 62 faces and extends into the via hole 512a from the second body portion 61. By opening a through hole 512a on the elastic leg 512, when the first contact portion 62 extends into the through hole 512a, sufficient contact between the first contact portion 62 and the elastic leg 512 can be ensured; and the through hole 512a and the through hole 421 The coaxial arrangement realizes the precise positioning of the first contact portion 62 and the through hole 512a, facilitates the assembly of the first contact portion 62 into the through hole, and improves the assembly efficiency.

Preferably, the first contact portion 62 penetrates through the via hole 512a to further ensure sufficient contact between the first contact portion 62 and the elastic foot 512, that is, to further ensure sufficient contact between the pad 31 and the flexible circuit board 50.

Furthermore, referring to FIGS. 3 and 7, the conductive connector 60 further includes a second contact portion 63 formed extending from the second body portion 61 toward the pad 31, and the second contact portion 63 is in contact with the pad 31. The through hole 421 is provided corresponding to the pad 31, so when the second contact portion 63 formed by the extension of the second body portion 61, the second contact portion 63 can directly contact the pad 31.

Preferably, in this embodiment, the conductive connector 60 is selected as a spring thimble, which is mass-produced. On the other hand, the use of a spring thimble makes assembly easier.

Furthermore, the present invention also provides a terminal device, which includes the aforementioned speaker box, so the terminal device has the performance of the aforementioned speaker box.

It should be noted that the terms "first" and "second" in the specification and claims of the application and the above-mentioned drawings are used to distinguish similar objects, and not necessarily used to describe a specific sequence or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in a sequence other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any variations of them are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those clearly listed. Those steps or units may include other steps or units that are not clearly listed or are inherent to these processes, methods, products, or equipment.

The above are only the embodiments of the present utility model. It should be pointed out here that for those of ordinary skill in the art, improvements can be made without departing from the inventive concept of the present utility model, but these all belong to the present utility model. New scope of protection.

Claims

A loudspeaker box, comprising a housing with a containing space, a sounding unit that divides the containing space into a front cavity and a rear cavity, a breathable spacer contained in the rear cavity, and a sounding unit sleeved on the sounding unit In order to support the frame of the air-permeable spacer, the sound-producing unit is provided with a pad, and the speaker box further includes a flexible circuit board corresponding to the pad and accommodated in the rear cavity, characterized in that the frame A through hole is formed therethrough, the speaker box further includes a conductive connector received in the through hole, one end of the conductive connector is in contact with the pad, and the other end of the conductive connector Contact with the flexible circuit board.
The speaker box according to claim 1, wherein the sound emitting unit includes two pads spaced along the width direction of the sound emitting unit, and the frame extends toward the inside to form two pads. The pads have two supporting parts corresponding to each other one by one, and the supporting parts are provided with the through holes.
The speaker box according to claim 2, wherein the flexible circuit board comprises a first conducting portion for electrical connection with the conducting connector, and a second conducting portion for electrical connection with the outside. And a connecting portion for connecting the first conductive portion and the second conductive portion.
The speaker box according to claim 3, wherein the first conducting portion comprises a first main body portion disposed on the frame Two spring feet formed by the extension of the support part.
The speaker box according to claim 4, wherein the orthographic projection of the spring foot along the vibration direction of the sounding unit falls within the orthographic projection of the support portion along the vibration direction of the sounding unit.
The speaker box according to claim 5, wherein the spring foot is provided with a through hole arranged coaxially with the through hole, and the through connector includes a second hole located in the through hole. The main body part and the first contact part facing and extending into the via hole from the second main body part.
The speaker box according to claim 6, wherein the first contact portion penetrates the through hole.
The speaker box according to claim 7, wherein the conductive connector further comprises a second contact portion extending from the second body portion toward the pad, and the second contact portion is connected to the pad. The pads are in contact.
The speaker box according to claim 1, wherein the conductive connector is a spring thimble.
A terminal device, characterized in that the terminal device comprises the speaker box according to any one of claims 1-9.