CN203219475U - Loudspeaker structures and mobile devices with expandable sound chambers - Google Patents

Abstract

The utility model discloses a sound box structure possessing an extensible sound cavity. The sound box structure comprises a first sound cavity which is provided with a first loudspeaker. A cavity wall of the first sound cavity is provided with an opening. A movable sound cavity sealing cover is arranged in the first sound cavity. An elastic element provides a sealing pressure for the movable sound cavity sealing cover to seal the opening. The sound box structure also comprises the extensible sound cavity which can be separated from the first sound cavity. The extensible sound cavity possesses a protruding portion. When the extensible sound cavity is installed on the first sound cavity, the protruding portion provides a force for the movable sound cavity sealing cover so that the movable sound cavity sealing cover can overcome the sealing pressure of the elastic element and move, and the extensible sound cavity and the first sound cavity which are assembled together are connected and form a sealing cavity through the opening. Mobile equipment possessing the sound box structure is also provided. The sound box structure possesses good flexibility, expansibility and usability. By using the sound box structure, a sound quality experience of a user can be improved. Simultaneously, the sound box structure is simple and compact. Cost is reduced and the equipment size is reduced too.

Description

Loudspeaker structures and mobile devices with expandable sound chambers

technical field

The utility model relates to a speaker device of a mobile device, in particular to a sound box structure with an expandable sound chamber and a mobile device with the sound box structure.

Background technique

Chinese patent application No. 200610157364.6 discloses a sound box structure, which includes a cavity and a speaker placed in the cavity. First to third sound cavities are formed in the cavity. The first sound cavity includes the front sound cavity and accommodates the The rear sound cavity of the loudspeaker, the rear sound cavity communicates with the second sound cavity to form a rear sound chamber, and the front sound cavity communicates with the third sound cavity to form a front sound chamber. Chinese patent application No. 201020239012.7 discloses a speaker with an adjustable rear cavity, which can be expanded by means of a spring telescopic control device, which can be used as the cavity of the rear cavity to increase the volume of the rear cavity. Chinese patent application No. 200920317952.0 discloses a speaker structure for a mobile phone, including a lower cover, an upper cover, a speaker, a circuit and a pair of springs, the upper cover includes a receiving space, and the speaker is accommodated in the receiving space of the upper cover . Chinese patent application No. 200710076378.X provides a portable electronic device, the body is provided with a first accommodating groove for accommodating the speaker, and the first elastic body provides elastic force so that the speaker can be slidably accommodated in the first accommodating groove. In an accommodating groove, the second elastic body provides elastic force to releasably engage the holding part with the sound box. When the loudspeaker needs to be used, the holding part is pushed to make the sound box pop up automatically relative to the body, and the volume of the first accommodation groove and the volume of the sound box together form the accommodation space of the loudspeaker.

The above-mentioned patent documents disclose a plurality of sound cavities and a solution for expanding the sound cavity, as well as a solution for arranging an elastic body to increase the volume of the sound cavity. With the popularization and development of mobile devices, speakers for mobile devices not only face the urgent need to further improve the user's sound quality experience, but also face the requirements of cost control, as well as the flexibility, scalability and ease of use of the device. sexual needs. the

Utility model content

The purpose of the utility model is to overcome the deficiencies of the prior art and provide a speaker structure with an expandable sound chamber and a mobile device with such a speaker structure, which can not only improve the user's sound quality experience, but also have outstanding flexibility and expandability. and ease of use, while the structure of this speaker is simple and compact, which is conducive to reducing cost and equipment size.

In order to achieve the above purpose, the utility model adopts the following technical solutions:

A speaker structure with an expandable sound cavity, comprising a first sound cavity provided with a first loudspeaker,

The cavity wall of the first sound cavity is provided with an opening, and a movable sound cavity sealing cover is provided in the first sound cavity, and the movable sound cavity sealing cover is provided with a sealing pressure by an elastic element to seal the opening,

The sound box structure also includes an extended sound chamber detachable from the first sound chamber, the extended sound chamber has a protrusion, and when the extended sound chamber is installed on the first sound chamber, the protrusion The part provides the movable sound cavity sealing cover with a force to move against the sealing pressure of the elastic element, so that the assembled expanded sound cavity communicates with the first sound cavity through the opening become a sealed cavity.

The following technical solutions can be further adopted:

The extended sound chamber is provided with a second speaker, the first sound chamber is provided with a contact terminal, and when the extended sound chamber is installed on the first sound chamber, the contact terminal connects the second speaker The input terminal is connected with the audio output circuit.

The protrusion is formed by the second speaker, the bottom end of which exerts pressure on the movable sound chamber sealing cover to open when the expansion sound chamber is mounted on the first sound chamber the opening.

The contact terminals include a first conductive terminal provided on the movable sound chamber sealing cover and a second conductive terminal electrically connected to the first conductive terminal, and the input terminal of the second speaker is provided on the protruding When the protruding part is pressed against the movable sound cavity sealing cover, the input terminal of the second speaker is electrically connected to the first conductive terminal, and the second conductive terminal is electrically connected to the audio output circuit. connect.

The first conductive terminal and the second conductive terminal are metal shrapnels, and the two metal shrapnels are respectively arranged on both sides of the movable sound chamber sealing cover, and the two metal shrapnels are formed independently or connected with the movable sound chamber sealing cover. Integral molded in the mould.

The elastic element is arranged on the inner side of the movable sound cavity sealing cover towards the cavity body, and when the expansion sound cavity is installed on the first sound cavity, the protrusion compresses the elastic element to open the said opening.

The elastic element is arranged on the outer side of the movable sound cavity sealing cover facing the cavity, and when the expansion sound cavity is installed on the first sound cavity, the protrusion stretches the elastic element to open the opening.

The extended sound cavity is open at one end and has a side wall and only one end wall. When the extended sound cavity is installed on the first sound cavity, the side wall of the extended sound cavity and the first sound cavity The cavity walls of the sound cavity are sealed and connected.

The expansion sound cavity has a side wall and two end walls, one of the end walls is provided with an opening, and the protruding part protrudes out of the opening.

The corresponding parts of the extended sound chamber and the wall of the first sound chamber are provided with a buckle connection structure or a detachable bonding structure.

A mobile device includes any sound box structure described above.

Beneficial technical effects of the utility model:

The sound cavity of the speaker structure includes the first sound cavity and the extended sound cavity, which can be separated or installed together. The first sound cavity can meet the user's basic sound quality requirements. When higher sound quality is required, the extended sound cavity can be extended. Installed on the first sound cavity, thereby improving the sound quality of the speaker. Through the design of the movable sound chamber sealing cover, the elastic element and the protruding part, a simple and compact structure is realized, and it is convenient for users to operate to switch between two sound chamber modes. The detachable design also enables users to get a perfect balance and flexible autonomy in the choice of portability, small size and perfect sound quality. Users can choose to separate the first sound chamber and the expansion sound chamber or Assemble.

By arranging a second speaker on the expansion sound cavity, and configuring it so that when the expansion sound cavity is installed on the first sound cavity, the input terminal of the second speaker is electrically connected to the speaker signal input terminal on the first sound cavity, this design The expansion of the speaker is cleverly and conveniently realized, thereby further improving the user's sound quality experience.

Through the design of the protruding part formed by the second loudspeaker, the function of opening the sealing cover of the movable sound cavity can be realized by using the extended speaker without setting an extra protruding part, which simplifies the structure and reduces the weight of the product. Moreover, according to the protruding feature of the protruding part itself, a part of the second speaker is located outside the expansion sound chamber, so even if the thickness of the second speaker is relatively large, the size of the expansion sound cavity can be made thinner to obtain Perfect sound quality while realizing miniaturization and thinning of the product.

Description of drawings

Fig. 1 is a top view of the first sound chamber (before the expansion sound chamber is installed) in an embodiment of the speaker structure of the present invention;

Fig. 2 is an A-A sectional view of the first sound cavity shown in Fig. 1;

Fig. 3 is a B-B sectional view of the first sound chamber shown in Fig. 1;

Fig. 4 is a top view of an embodiment of the speaker structure of the present invention (the first sound cavity is equipped with an extended sound cavity);

Fig. 5 is an A-A sectional view of the sound box structure shown in Fig. 4;

Fig. 6 is a B-B sectional view of the sound box structure shown in Fig. 4 .

Detailed ways

Embodiments of the utility model are described in detail below in conjunction with the accompanying drawings. It should be emphasized that the following descriptions are only illustrative, not intended to limit the scope of the present utility model and its application.

Referring to FIGS. 1 to 6, in some embodiments, a sound box structure with an expandable sound cavity includes a first sound cavity 100 provided with a first speaker 102 and an extended sound cavity 200 detachable from the first sound cavity 100, The cavity wall 107 of the first sound cavity 100 is provided with an opening 101, the first sound cavity 100 is provided with a movable sound cavity sealing cover 103, and the movable sound cavity sealing cover 103 is provided with a sealing pressure by an elastic element 104 to seal the opening 101, The extended sound chamber 200 has a protrusion, and when the extended sound chamber 200 is installed on the first sound chamber 100, the protrusion provides the movable sound chamber sealing cover 103 to make the movable sound chamber sealing cover 103 overcome the sealing pressure of the elastic element 104 The moving force makes the assembled extended sound cavity 200 and the first sound cavity 100 communicate with each other through the opening 101 to form a sealed cavity.

Referring to FIGS. 4-6 , in a preferred embodiment, the expansion sound cavity 200 is provided with a second speaker 201, the first sound cavity 100 is provided with a contact terminal 105, and when the expansion sound cavity 200 is installed on the first sound cavity 100 , the contact terminal 105 connects the input terminal of the second speaker 201 with the audio output circuit. The sound output circuit may be a circuit located on the PCB board 106 on the side of the first sound chamber 100 away from the extended sound chamber 200 . The electrical connection between the contact terminal 105 and the audio output circuit can be maintained all the time, or can be connected or disconnected with the movement of the movable sound cavity sealing cover 103 .

Referring to Fig. 4-Fig. 6, in a more preferred embodiment, the protrusion is formed by the second speaker 201, and when the expansion sound chamber 200 is installed on the first sound chamber 100, the bottom end of the second speaker 201 is opposite to the movable sound. The cavity sealing cover 103 applies pressure to open the opening 101 .

In a preferred embodiment, the contact terminal 105 includes a first conductive terminal provided on the movable sound cavity sealing cover 103 and a second conductive terminal electrically connected to the first conductive terminal, the second conductive terminal is connected to the audio output circuit, and the second conductive terminal is connected to the audio output circuit. The input terminal of the second speaker 201 is disposed on the protruding part, and when the protruding part is pressed against the movable sound chamber sealing cover 103, the input terminal of the second speaker 201 is electrically connected to the first conductive terminal.

Referring to FIG. 3 and FIG. 6 , in a preferred embodiment, the first conductive terminal and the second conductive terminal are metal shrapnel, and the two metal shrapnel are respectively arranged on two surfaces of the movable sound chamber sealing cover 103 . The design of the metal shrapnel enables the contact terminal to be tightly pressed by elastic deformation force when it is in contact with the speaker input terminal and the speaker signal supply terminal, so as to obtain good electrical contact. The two metal shrapnels can be formed independently (integrated or separately), or can be integrally formed together with the movable sound cavity sealing cover 103 in the mold.

2 and 5, in a preferred embodiment, the elastic element 104 can be arranged on the inner side of the movable sound cavity sealing cover 103 toward the cavity, and when the expansion sound cavity 200 is installed on the first sound cavity 100, it protrudes The portion compresses the elastic element 104 to open the opening 101 .

In some other embodiments, the elastic element 104 is arranged on the outer side of the movable sound cavity sealing cover 103 facing the cavity, when the expansion sound cavity 200 is installed on the first sound cavity 100, the protrusion stretches the elastic element 104 to open opening 101 .

2 and 5, in a preferred embodiment, the expansion sound cavity 200 is open at one end, with a side wall 202 and only one end wall 203, when the expansion sound cavity 200 is installed on the first sound cavity 100, The side wall of the extended sound cavity 200 is in sealing contact with the cavity wall 107 of the first sound cavity 100 .

In some other embodiments, the expansion sound cavity 200 has a side wall and two end walls, one of the end walls is provided with an opening, and the protruding part protrudes out of the opening. During installation, one end wall of the extended sound chamber 200 is combined with the cavity wall 107 of the first sound cavity 100 , and the respective openings are aligned.

In some embodiments, a buckle connection structure (not shown) is provided at the corresponding portion of the extended sound cavity 200 and the cavity wall 107 of the first sound cavity 100 . Through the buckle connection structure, the extended sound chamber 200 and the first sound chamber 100 can be conveniently assembled or disassembled.

In some other embodiments, the buckle connection structure can also be replaced by an adhesive structure. In addition, some common connectors such as screws can also be used to achieve fixed connection.

All the above connection structures can be understood by those skilled in the art.

For the first speaker and the second speaker arranged on the sound cavity, the relevant configurations may include structures such as magnetic conductive sheets, sealing cushions, and dust-proof nets, which are also understandable to those skilled in the art.

In the embodiment shown in Figures 1 to 6, the speaker structure can realize the sealing of the first sound cavity through the movable sound cavity sealing cover, and can realize the expansion of the sound cavity and the speaker by moving the movable sound cavity sealing cover , to provide users with a better sound quality experience. Since one more speaker is provided on the extended sound cavity, the assembly of the extended sound cavity drives the movement of the sealing cover of the sound cavity to realize the connection of the two sound cavities, and at the same time, the increased speaker is energized to work.

In some embodiments, there is also provided a mobile device, which includes a main body (not shown), and may further include the sound box structure according to any one of the foregoing embodiments installed on the main body. A mobile device can be a variety of portable electronic devices such as smartphones, tablets, and laptops.

The above content is a further detailed description of the utility model in combination with specific preferred embodiments, and it cannot be assumed that the specific implementation of the utility model is only limited to these descriptions. For a person of ordinary skill in the technical field to which the utility model belongs, without departing from the concept of the utility model, some simple deduction or substitutions can also be made, which should be regarded as belonging to the protection scope of the utility model.

Claims (10)

1. one kind has the loudspeaker box structure that can expand the sound chamber, comprises the first sound chamber that is provided with first loud speaker, it is characterized in that,

The chamber wall in the described first sound chamber is provided with opening, is provided with movable sound chamber seal cover in the described first sound chamber, and described movable sound chamber seal cover provides sealing load by flexible member and seals described opening,

Described loudspeaker box structure also comprises and separable expansion sound chamber, the described first sound chamber, described expansion sound chamber has protuberance, and when described expansion sound chamber is installed on the described first sound chamber, described protuberance provides described movable sound chamber seal cover and makes its sealing load that overcomes described flexible member and mobile power, becomes an annular seal space so that the described expansion sound chamber that fits together is communicated with by described opening with the described first sound chamber.

2. loudspeaker box structure according to claim 1, it is characterized in that, described expansion sound chamber is provided with second loud speaker, the described first sound chamber is provided with contact terminal, and when described expansion sound chamber was installed on the described first sound chamber, described contact terminal was connected input terminal and the sound equipment output circuit of described second loud speaker.

3. as loudspeaker box structure as described in the claim 2, it is characterized in that, described protuberance is formed by described second loud speaker, and when described expansion sound chamber was installed on the described first sound chamber, described opening was exerted pressure to open to described movable sound chamber seal cover in the bottom of described second loud speaker.

4. as loudspeaker box structure as described in the claim 2, it is characterized in that, described contact terminal is included in first conducting terminal that arranges on the seal cover of described movable sound chamber and second conducting terminal that is electrically connected with described first conducting terminal, the input terminal of described second loud speaker is arranged on the described protuberance, when described protuberance is pressed on the seal cover of described movable sound chamber, the input terminal of described second loud speaker is electrically connected with described first conducting terminal, and described second conducting terminal is electrically connected with the sound equipment output circuit.

5. as loudspeaker box structure as described in the claim 4, it is characterized in that, described first conducting terminal and second conducting terminal are metal clips, two metal clipss are separately positioned on the two sides of described movable sound chamber seal cover, and two metal clipss are independent moulding or integrated in mould with described movable sound chamber seal cover.

6. as claim 1 to 5 loudspeaker box structure as described in each, it is characterized in that, described flexible member is arranged on the inboard towards cavity of described movable sound chamber seal cover, and when described expansion sound chamber was installed on the described first sound chamber, described protuberance compressed described flexible member and opens described opening; Perhaps

Described flexible member is arranged on the outside towards cavity of described movable sound chamber seal cover, and when described expansion sound chamber was installed on the described first sound chamber, described protuberance stretched described flexible member and opens described opening.

7. as claim 1 to 5 loudspeaker box structure as described in each, it is characterized in that, described expansion sound chamber is that an end is open, have sidewall and end wall only, when described expansion sound chamber was installed on the described first sound chamber, the chamber wall sealing in the sidewall in described expansion sound chamber and the described first sound chamber was joined.

8. as claim 1 to 5 loudspeaker box structure as described in each, it is characterized in that described expansion sound chamber has sidewall and two end walls, one of them end wall is provided with opening, and described protuberance stretches out described opening.

9. as loudspeaker box structure as described in the claim 7, it is characterized in that the corresponding position of the chamber wall in described expansion sound chamber and the described first sound chamber is provided with buckle syndeton or detachable bonded structure.

10. a mobile device is characterized in that, comprises as each described loudspeaker box structure of claim 1 to 9.

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