Speaker box

Abstract

The present invention provides a speaker box. [Solution] The speaker box includes a metal case having a receiving cavity, and a speaker unit disposed in the receiving cavity and having a diaphragm, the speaker box further includes at least two metal members disposed between the metal case and the speaker unit, the speaker unit includes a frame and a yoke fixed to the frame, and the metal members are welded to the yoke and the metal case. Compared with the related art, the speaker box of the present invention fixes the speaker unit to the at least two metal members by laser welding, thereby reducing the possibility of dropping and improving reliability, while optimizing the process and saving costs.

Description

[Technical field]

[0001] The present invention relates to the field of electroacoustic conversion, in particular to a speaker box. [Background technology]

[0002] Speakers are sound devices commonly used in electronic devices such as mobile phones, tablets, learning machines, MP4s, etc. In related technology, there are speakers using metal cases, but due to the structure and limitations of electronic devices, there is a lack of positioning and fastening methods to match with electronic devices, and the unit in the speaker box is easily loosened after long-term use, which affects the sound quality of the speaker and makes it impossible to stably and reliably output high-quality sound, and there are limitations to its application in finished electronic devices.

[0003] However, in the prior art, the speaker unit is first fixed by the supporting foam and the metal case, and then the speaker housing and the unit are fixed by adhesive, which is complicated and not robust.

[0004] Therefore, there is a need to provide a new speaker box to solve the above problems. Summary of the Invention [Problem to be solved by the invention]

[0005] An object of the present invention is to provide a speaker box which is highly reliable and has excellent stability. [Means for solving the problem]

[0006] In order to achieve the above object, the present invention provides a speaker box comprising: a metal case having an accommodating cavity; and a speaker unit having a diaphragm and disposed within the accommodating cavity; the speaker box further comprises at least two metal members disposed between the metal case and the speaker unit; the speaker unit includes a frame and a yoke fixed to the frame; and the metal members are welded and fixed to the yoke and the metal case.

[0007] Preferably, the number of the metal members is two, and the metal members are provided on opposite sides of the speaker unit along the minor axis direction of the speaker unit.

[0008] Preferably, the metal case includes an upper case close to the diaphragm and a lower case far from the diaphragm, the upper case including a first side wall arranged parallel to the vibration direction of the diaphragm, the metal member including a main body portion at least a portion of which is arranged between the speaker unit and the first side wall, and an extension portion bent inwardly and extending from the side of the main body portion away from the diaphragm, the extension portion being fixed to the underside of the yoke away from the diaphragm, and the main body portion being fixedly connected to the first side wall.

[0009] Preferably, the lower case includes a second side wall connected to the first side wall, and the main body is fixedly connected to the second side wall.

[0010] Preferably, the main body portion is parallel to the vibration direction and the extension portion is perpendicular to the vibration direction.

[0011] Preferably, the body portion includes a first surface proximate to the yoke, the first surface being fixedly connected to the yoke.

[0012] Preferably, the upper case further includes a top wall extending inwardly from a side of the first side wall away from the second side wall along a direction perpendicular to the vibration direction, the top wall including an upper surface close to the diaphragm and perpendicular to the vibration direction, and the main body portion including an end surface disposed opposite the upper surface, the end surface being fixedly connected to the upper surface.

[0013] Preferably, the metal member is made of steel. Effect of the Invention

[0014] Compared with the related art, the speaker box of the present invention adds at least two metal members, and the at least two metal members are respectively welded and fixed to the metal case and the yoke of the speaker unit, so that the speaker unit and the metal case can be firmly fixed. The present invention eliminates the supporting foam in the prior art that supports the speaker unit, optimizes the process, and saves costs. The metal case and the speaker unit are laser welded to improve the drop reliability. [Brief description of the drawings]

[0015] In order to more clearly describe the technical solutions in the embodiments of the present invention, the drawings necessary for describing the embodiments will be briefly described below. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can obtain other drawings based on these drawings without any inventive work, among which: [Figure 1] FIG. 1 is a perspective view of a speaker box according to the present invention. [Diagram 2] FIG. 2 is an exploded view of a portion of the speaker box of the present invention. [Diagram 3] FIG. 3 is an exploded view of another portion of the speaker box of the present invention. [Figure 4] FIG. 4 is a cross-sectional view taken along line AA of FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0016] The technical solutions in the embodiments of the present invention will be described below clearly and completely with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by those skilled in the art without making inventive efforts based on the embodiments of the present invention shall be included in the protection scope of the present invention.

[0017] Referring simultaneously to Figures 1 to 4, the present invention provides a speaker box 100 comprising a metal case 1 having a accommodating cavity 10, a speaker unit 2 provided in the accommodating cavity 10, and at least two metal members 5 provided between the metal case 1 and the speaker unit 2.

[0018] The metal case 1 includes an upper case 11 and a lower case 12 connected to each other, and the upper case 11 and the lower case 12 surround and form a receiving cavity 10 .

[0019] The speaker unit 2 includes a frame 22 , a yoke 23 fixed to one side of the frame 22 , and a diaphragm 21 fixed to the other side of the frame 22 , and the yoke 23 includes a lower surface 231 away from the diaphragm 21 .

[0020] The metal member 5 is fixed to the yoke 23 and the metal case 1 by laser welding, and one side of the metal member 5 is fixed to the yoke 23 by laser welding, and the other side is fixed to the metal case 1 by laser welding. The upper case 11 is closer to the diaphragm 21 than the lower case 12, and the upper case 11 includes a first side wall 111 provided parallel to the vibration direction of the diaphragm 21, and the lower case 12 includes a second side wall 121 connected to the first side wall 111. The metal member 5 includes a main body portion 51, at least a part of which is provided between the speaker unit 2 and the first side wall 111, and an extension portion 52 that is bent inward and extends from the side of the main body portion 51 that is away from the diaphragm 21, and the extension portion 52 is fixed to a lower surface 231 of the yoke 23 that is away from the diaphragm 21, and the main body portion 51 is fixedly connected to the first side wall 111.

[0021] In this embodiment, in order to further enhance the fixing effect, the main body 51 is fixedly connected to both the first side wall 111 and the second side wall 121, but in other embodiments, the main body may be fixedly connected only to the first side wall. In this embodiment, the main body 51 is provided parallel to the vibration direction of the diaphragm 21, and the extension 52 is provided perpendicular to the vibration direction of the diaphragm 21, but in other embodiments, the main body and the extension may be provided along other directions to match different shapes and functions of the speaker unit and the metal case.

[0022] The main body portion 51 includes a first surface 511 adjacent to the yoke 23, the first surface 511 being spaced apart from the yoke 23, although in other embodiments the first surface may be fixedly connected to the yoke to increase the reliability of the connection.

[0023] In this embodiment, the speaker unit 2 is substantially rectangular, and there are two metal members 5, which are provided on opposite sides of the speaker unit 2 along the short axis direction of the speaker unit 2. In other embodiments, a plurality of metal members, such as three or four, may be provided depending on the shape, weight and material of the speaker unit.

[0024] The upper case 11 further includes a top wall 112 that extends from the side of the first side wall 111 away from the second side wall 121, bending inward along a direction perpendicular to the vibration direction, the top wall 112 includes a top surface 1121 that is close to the diaphragm 21 and perpendicular to the vibration direction, the main body 51 includes an end surface 512 that is provided opposite the top surface 1121, the end surface 512 is fixedly connected to the top surface 1121, and both the end surface 512 and the top surface 1121 are flat surfaces. In other embodiments, the end surface and the top surface may be provided with an interval therebetween.

[0025] In this embodiment, the material of the metal member 5 is steel, but in other embodiments, the metal member may be made of other materials depending on the change in the material of the yoke and the metal case.

[0026] In addition, compared with the related art, the speaker box 100 of the present invention adds at least two metal members, and the at least two metal members are respectively welded and fixed to the metal case and the yoke of the speaker unit, so that the speaker unit and the metal case can be firmly fixed. The present invention eliminates the supporting foam in the prior art that supports the speaker unit, optimizing the process and saving costs. The metal case and the speaker unit are laser welded to improve the drop reliability.

[0027] The above is merely an embodiment of the present invention, and it should be noted here that those skilled in the art may make modifications without departing from the creative idea of ​​the present invention, and all such modifications are within the scope of protection of the present invention.

Claims

1. A speaker box comprising a metal case having a housing cavity and a speaker unit provided in the housing cavity and having a diaphragm, The speaker unit further includes at least two metal members provided between the metal case and the speaker unit, the speaker unit including a frame and a yoke fixed to the frame, the metal members being welded to the yoke and the metal case, The number of the metal members is two, and the metal members are provided on both opposing sides of the speaker unit along a minor axis direction of the speaker unit, The metal case includes an upper case close to the diaphragm and a lower case far from the diaphragm, the upper case includes a first side wall arranged parallel to the vibration direction of the diaphragm, the metal member includes a main body portion at least a portion of which is arranged between the speaker unit and the first side wall, and an extension portion bent inward and extending from a side of the main body portion away from the diaphragm, the extension portion being fixed to a lower surface of the yoke away from the diaphragm, and the main body portion being fixedly connected to the first side wall. A speaker box characterized by:

2. The lower case includes a second side wall connected to the first side wall, and the main body is fixedly connected to the second side wall.

2. The speaker box according to claim 1 .

3. The main body portion is parallel to the vibration direction, and the extension portion is perpendicular to the vibration direction.

3. The speaker box according to claim 2.

4. the body portion includes a first surface proximate the yoke, the first surface being fixedly connected to the yoke; 4. The speaker box according to claim 3.

5. The upper case further includes a top wall extending from a side of the first side wall away from the second side wall in a direction perpendicular to the vibration direction, the top wall including a top surface that is close to the diaphragm and perpendicular to the vibration direction, the main body including an end surface that faces the top surface, and the end surface that is fixedly connected to the top surface.

5. The speaker box according to claim 4.

6. The material of the metal member is steel.

2. The speaker box according to claim 1 .

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