CN218941274U

CN218941274U - Sound box with adjustable cavity volume

Info

Publication number: CN218941274U
Application number: CN202223236864.2U
Authority: CN
Inventors: 姚洪波
Original assignee: Guangzhou Hivi Electroacoustic Technology Co ltd
Current assignee: Guangzhou Hivi Electroacoustic Technology Co ltd
Priority date: 2022-12-01
Filing date: 2022-12-01
Publication date: 2023-04-28
Anticipated expiration: 2032-12-01

Abstract

The utility model discloses a sound box with adjustable cavity volume, which belongs to the technical field of sound boxes, and comprises: the first shell is provided with a first cavity; the second shell is movably arranged on the first shell, a second cavity with variable volume is formed in the second shell, the volume of the second cavity changes along with the movement of the second shell, and the first cavity is communicated with the second cavity; and a seal member disposed between the first housing and the second housing. Through the motion of second casing for first casing, can change the volume of second cavity in the second casing, because the volume of the whole cavity of audio amplifier is equal to the sum of first cavity and second cavity volume approximately, consequently, control the second casing and remove can conveniently adjust the volume of audio amplifier to be suitable for different application scenarios and audio quality demands.

Description

Sound box with adjustable cavity volume

Technical Field

The utility model relates to the technical field of sound boxes, in particular to a sound box with an adjustable cavity volume.

Background

A sound box refers to a device that converts an audio signal into sound. In popular terms, the power amplifier is arranged in the main box body of the sound box or the bass box body, and after the audio signal is amplified, the sound is played back by the sound box, so that the sound is amplified.

Therefore, the volume of the cavity in the sound box can directly influence the sound quality of the output of the sound box. In the existing sound box product, the volume of the cavity is fixed from design and manufacture due to the simple structure of the box body, and the volume of the cavity cannot be changed according to the requirements of consumers or the scenes of practical application.

Disclosure of Invention

The utility model aims to at least solve one of the technical problems in the prior art, and therefore, the utility model provides a sound box with adjustable cavity volume, which can change the volume of the cavity of the sound box so as to adapt to different application scenes.

According to an embodiment of the utility model, a sound box with adjustable cavity volume comprises: the first shell is provided with a first cavity; the second shell is movably arranged on the first shell, a second cavity with variable volume is formed in the second shell, the volume of the second cavity changes along with the movement of the second shell, and the first cavity is communicated with the second cavity; and a seal member disposed between the first housing and the second housing.

The sound box with the adjustable cavity volume has the following beneficial effects: through the motion of second casing for first casing, can change the volume of second cavity in the second casing, because the volume of the whole cavity of audio amplifier is equal to the sum of first cavity and second cavity volume approximately, consequently, control the second casing and remove can conveniently adjust the volume of audio amplifier to be suitable for different application scenarios and audio quality demands.

According to some embodiments of the utility model, the second housing is provided with two openings, the first cavity is provided with two openings, the two openings are respectively arranged at the left side and the right side of the first housing, the two second housings are respectively arranged on the two openings, and the two second housings can slide left and right along the first housing.

According to some embodiments of the utility model, the second housing comprises a panel portion and a folded portion, the panel portion and the folded portion together enclosing a second cavity, the panel portion being connected to the opening by the folded portion, the folded portion being capable of changing the volume of the second cavity by expanding and contracting.

According to some embodiments of the utility model, the panel portion is disposed on the first housing, and the panel portion is coupled to the first housing.

According to some embodiments of the utility model, the sealing member is a sealing rubber ring, one end of the folding portion is connected with the opening through the sealing rubber ring, the other end of the folding portion is connected with the panel portion, and the panel portion drives the folding portion to expand and contract away from and close to the opening.

According to some embodiments of the utility model, the first housing is provided with a groove, the groove is arranged along the periphery of the opening, the shape of the panel part is matched with the groove, and the groove is used for accommodating the panel part.

According to some embodiments of the utility model, the fold is provided with graduations.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The utility model is further described below with reference to the drawings and examples;

FIG. 1 is a schematic diagram of a sound box with adjustable cavity volume according to an embodiment of the present utility model;

FIG. 2 is a schematic view of the structure of FIG. 1 in another state;

FIG. 3 is a front view of FIG. 2;

FIG. 4 is a cross-sectional view of FIG. 1;

fig. 5 is a cross-sectional view of fig. 2.

Reference numerals:

a first housing 100; a first cavity 110; an opening 120; a groove 130;

a second housing 200; a second cavity 210; a panel section 220; a folding part 230;

sealing ring 310.

Detailed Description

Reference will now be made in detail to the present embodiments of the present utility model, examples of which are illustrated in the accompanying drawings, wherein the accompanying drawings are used to supplement the description of the written description so that one can intuitively and intuitively understand each technical feature and overall technical scheme of the present utility model, but not to limit the scope of the present utility model.

In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

A cavity volume adjustable speaker according to an embodiment of the present utility model is described with reference to fig. 1 to 5.

As shown in fig. 1 to 5, the cavity volume tunable tank of the embodiment of the present utility model includes: the first housing 100, the first housing 100 is provided with a first cavity 110; the second casing 200, the second casing 200 is movably arranged on the first casing 100, the second casing 200 is provided with a second cavity 210 with a variable volume, the volume of the second cavity 210 changes along with the movement of the second casing 200, and the first cavity 110 is communicated with the second cavity 210; a seal member disposed between the first housing 100 and the second housing 200.

As shown in fig. 1 to 5, the first housing 100 is provided with a first cavity 110, the first cavity 110 penetrates the first housing 100 along a left-right direction, the left and right ends of the first cavity 110 are respectively provided with rectangular openings 120, and two second housings 200 are respectively movably arranged on the two openings 120. For the opening 120 at the right side of the first case 100, the left end of the corresponding folding portion 230 is connected to the opening 120, the right end of the folding portion 230 is connected to the panel portion 220, and the folding portion 230 can be unfolded and contracted. When the panel part 220 moves rightward to drive the folded part 230 to expand, the volume of the second cavity 210 expands, and the volume of the whole sound box cavity increases along with the rightward movement of the panel part 220 because the second cavity 210 is communicated with the first cavity 110; when the panel part 220 moves leftwards to drive the folding part 230 to shrink, the volume of the second cavity 210 is reduced, and the volume of the whole sound box cavity is reduced along with the leftwards movement of the panel part 220 because the second cavity 210 is communicated with the first cavity 110. The movement process of the second housing 200 disposed at the left opening 120 of the first housing 100 is similar to the above process, and will not be repeated.

Thus, when the second housing 200 is retracted in the first housing 100, that is, the folded portion 230 is folded and retracted at the opening 120, the panel portion 220 is abutted against the left and right sides of the first housing 100, and the overall volume of the sound box is approximately equal to the volume of the first cavity 110. When the second housing 200 moves in a direction away from the first housing 100, the folded portion 230 is gradually unfolded, and the volume of the second cavity 210 enclosed by the panel portion 220 and the folded portion 230 is gradually enlarged, because the first cavity 110 and the second cavity 210 are communicated, the overall volume of the sound box is approximately equal to the volume of the first cavity 110 plus the volume of the second cavity 210, and the volume of the second cavity 210 can be adjusted by moving the panel portion 220, so that the volume of the sound box cavity can be adjusted according to the actual application scenario and the required sound quality.

The first housing 100 is provided with a driving member which is connected to the panel part 220 and drives the panel part 220 to move left and right, thereby changing the volume of the second chamber 210. It is conceivable that the driving member may be a common mechanical driving manner such as an air cylinder, a motor screw nut, etc., or may be manually controlled by a user to move the panel portion 220 left and right, so as to achieve the effect of changing the volume of the cavity of the sound box.

As shown in fig. 4 and 5, the sealing member is a sealing rubber ring 310, one end of the folded portion 230 is connected to the opening 120 through the sealing rubber ring 310, the other end of the folded portion 230 is connected to the panel portion 220, and the panel portion 220 is far from and near to the opening 120 to drive the folded portion 230 to be unfolded and contracted. The sealing ring can ensure tightness of the connection between the first housing 100 and the second housing 200, thereby ensuring that the first cavity 110 and the second cavity 210 together form a closed cavity.

As shown in fig. 4 and 5, the first housing 100 is provided with a groove 130, the groove 130 is disposed along a peripheral side of the opening 120, the shape of the panel portion 220 is matched with the groove 130, and the groove 130 is used for accommodating the panel portion 220. The groove 130 can accommodate the panel part 220 when the panel part 220 is tightly attached to the first housing 100, so that the overall sound box is more attractive.

In some embodiments of the present utility model, the fold 230 is provided with graduations. The scale portion reflects the degree of unfolding of the folded portion 230, thereby helping the user judge the degree of change of the overall volume of the speaker chamber.

In summary, by moving the second housing 200 relative to the first housing 100, the volume of the second cavity 210 in the second housing 200 can be changed, and since the volume of the entire cavity of the sound box is approximately equal to the sum of the volumes of the first cavity 110 and the second cavity 210, the volume of the sound box can be conveniently adjusted by controlling the movement of the second housing 200, so as to be suitable for different application scenarios and audio requirements.

The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.

Claims

1. A sound box with an adjustable cavity volume, comprising:

the device comprises a first shell (100), wherein a first cavity (110) is formed in the first shell (100);

the second shell (200) is movably arranged on the first shell (100), a second cavity (210) with a variable volume is formed in the second shell (200), the volume of the second cavity (210) changes along with the movement of the second shell (200), and the first cavity (110) is communicated with the second cavity (210);

a seal disposed between the first housing (100) and the second housing (200).

2. The sound box with adjustable cavity volume according to claim 1, wherein two second housings (200) are provided, the first cavity (110) has two openings (120), the two openings (120) are respectively provided on the left and right sides of the first housing (100), the two second housings (200) are respectively provided on the two openings (120), and both the two second housings (200) can slide along the first housing (100) left and right.

3. The enclosure of claim 2, wherein the second housing (200) includes a panel portion (220) and a folded portion (230), the panel portion (220) and the folded portion (230) together enclosing the second cavity (210), the panel portion (220) being connected to the opening (120) by the folded portion (230), the folded portion (230) being capable of changing the volume of the second cavity (210) by expanding and contracting.

4. A sound box with adjustable cavity volume according to claim 3, further comprising a driving member provided on the first housing (100), the driving member being connected to the panel portion (220), the driving member driving the panel portion (220) closer to and farther from the opening (120).

5. The sound box with adjustable cavity volume according to claim 4, wherein the sealing member is a sealing rubber ring (310), one end of the folding portion (230) is connected with the opening (120) through the sealing rubber ring (310), the other end of the folding portion (230) is connected with the panel portion (220), and the panel portion (220) is far away from and near the opening (120) to drive the folding portion (230) to expand and contract.

6. A sound box with adjustable cavity volume according to claim 3, wherein the first housing (100) is provided with a groove (130), the groove (130) is disposed along the periphery of the opening (120), the shape of the panel portion (220) is matched with the shape of the groove (130), and the groove (130) is used for accommodating the panel portion (220).

7. A sound box with adjustable cavity volume according to claim 3, characterized in that the fold (230) is provided with graduations.