Loudspeaker

Abstract

The utility model provides a loudspeaker. The loudspeaker comprises a sound box, a loudspeaking single body and a damping piece. The sound box comprises a sound box body and a mounting hole, the sound box body is provided with a front panel and a rear panel, a resonant cavity is formed in the sound box body, and the mounting hole is formed in the sound box body. The loudspeaking unit is arranged in the mounting hole of the sound box and extends to the resonant cavity, and the loudspeaking unit vibrates back and forth along the vibration direction to generate sound waves. The damping piece is arranged on a front panel or / and a rear panel of a sound box body of the sound box, and the axial direction of the damping piece is perpendicular to the vibration direction. The damping piece is columnar and comprises a core material and a wrapping material wrapping the core material, and the rigidity of the core material is larger than that of the wrapping material. By arranging the damping piece in the sound box, when the sound box vibrates due to the influence of sound waves in the internal resonant cavity, the damping piece can immediately slow down the vibration of the sound box to eliminate the vibration, so that the phenomenon that noise is formed due to extra sound waves generated by the vibration of the sound box is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of loudspeakers, and in particular to a loudspeaker with a damping member arranged in a sound box. Background Art

[0002] A speaker is a device for receiving audio signals and then converting them into sound waves. A speaker includes a speaker unit and a sound box. The speaker unit is installed on the front panel of the sound box. After receiving the audio signal, the speaker unit vibrates and pushes the air to vibrate to generate sound waves, which are emitted from the front of the sound box. For some speakers (such as speakers with enhanced subwoofers), in addition to the speaker unit and the sound box, a bass reflex tube is also provided. The bass reflex tube resonates with the resonant cavity in the sound box. The sound waves in the sound box are transmitted to the outside of the sound box through the bass reflex tube and the bass reflex hole set on the front panel or rear panel of the sound box and transmitted forward together, thereby enhancing the effect of low-frequency sound waves.

[0003] When a speaker generates sound waves, such as a speaker that enhances the bass, the sound waves will affect the speaker cabinet and cause it to vibrate. The vibration of the speaker cabinet will also push the air and generate additional sound waves, which can easily cause noise. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the present application is to provide a loudspeaker for solving the problem in the prior art that the sound waves output by the loudspeaker contain noise due to the vibration of the sound box.

[0005] In order to achieve the above-mentioned purpose and other related purposes, the present application provides a speaker, which includes a sound box, a speaker unit and a damping member. The sound box includes a sound box body and a mounting hole, the sound box body has a front panel and a rear panel and forms a resonance cavity inside, and the mounting hole is formed in the sound box body. The speaker unit is arranged in the mounting hole of the sound box and extends to the resonance cavity, and the speaker unit vibrates back and forth along the vibration direction to generate sound waves. The damping member is arranged on the front panel and / or the rear panel of the sound box body of the sound box, and the axial direction of the damping member is perpendicular to the vibration direction. The damping member is columnar, and the damping member includes a core material and a cladding material covering the core material, and the rigidity of the core material is greater than the rigidity of the cladding material.

[0006] Optionally, the mounting hole is formed on the front panel, the number of damping members is multiple, at least one damping member is arranged close to the front panel of the speaker body, and at least one damping member is arranged close to the rear panel of the speaker body.

[0007] Optionally, at least one retaining member is further included, the at least one retaining member extends along the vibration direction, and the at least one retaining member connects the damping member arranged close to the front panel and the damping member arranged close to the rear panel.

[0008] Optionally, the retaining member is formed with inserting holes at two opposite ends, and one end of the core material of the damping member is inserted into the inserting hole.

[0009] Optionally, it also includes a bass reflex tube, which is arranged in the resonance cavity of the speaker body. The speaker also includes a bass reflex hole, which is arranged on the rear panel of the speaker body. One end of the bass reflex tube is connected to the bass reflex hole.

[0010] Optionally, the speaker body includes a first body and a second body connected to the first body, the first body and the second body have different depths, the depth is defined as the distance between the front panel and the rear panel, the mounting holes and the bass reflex holes are both set on the first body, and the other end of the bass reflex tube is located on the second body.

[0011] Optionally, the speaker body further includes two first structural grooves, which are formed at the connection between the first body and the second body to form a necked structure, and the two first structural grooves extend along the vibration direction.

[0012] Optionally, the speaker body further includes two second structural grooves, the two second structural grooves are formed on a side of the first body away from the second body, and the two second structural grooves extend along the vibration direction.

[0013] Optionally, the speaker body further includes two third structural grooves, the two third structural grooves are formed on a side of the second body away from the first body, and the two third structural grooves extend along the vibration direction.

[0014] Optionally, a connection between the first body and the second body forms a stepped structure, and the center of the second body and the center of the first body are offset from each other.

[0015] Optionally, the front panel is provided with at least one damping member on opposite sides of the mounting hole of the first body, and the rear panel is provided with at least one damping member on opposite sides of the inverted hole of the first body.

[0016] Optionally, at least one damping member is disposed on the front panel at a side of the second body away from the mounting hole.

[0017] Optionally, the speaker further includes a mounting groove, which is formed on the front panel and / or the rear panel, and which extends in a direction perpendicular to the vibration direction, and the damping member is disposed in the mounting groove.

[0018] Optionally, the speaker further comprises a plurality of snap-on recesses, the plurality of snap-on recesses are arranged in the installation groove, the covering material of the damping member is provided with a plurality of limiting flanges, the covering material is engaged with the snap-on recesses, and the plurality of limiting flanges clamp the snap-on recesses.

[0019] As described above, the speaker of the present application has the following beneficial effects:

[0020] By arranging a damping member in the sound box, when the sound box is affected by the sound waves in the internal resonance cavity and vibrates, the damping member can immediately slow down and eliminate the vibration of the sound box, thereby avoiding the generation of additional sound waves and noise due to the vibration of the sound box. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Shown is a stereoscopic diagram of a speaker according to an embodiment of the present application;

[0022] Figure 2 Display as Figure 1 A stereogram of the speaker from another perspective;

[0023] Figure 3 Display as Figure 1 A three-dimensional exploded view of the speaker;

[0024] Figure 4 Display as Figure 1 A top view of a speaker;

[0025] Figure 5 Display as Figure 4 Section view along line AA;

[0026] Figure 6 Display as Figure 4 Sectional view along line BB;

[0027] Figure 7 Display as Figure 1 A three-dimensional view of a damping member of a loudspeaker.

[0028] Component number description

[0029] 1: speaker; 10: sound box; 11: sound box body; 11a: front panel; 11b: rear panel; 11c: resonance cavity; 12: mounting hole; 13: bass reflex hole; 20: speaker unit; 30: damping element; 31: core material; 32: covering material; 32a: limiting flange; 40: retaining element; 41: plug-in hole; 50: bass reflex tube; 51: horizontal section; 52: inclined section; 111: first body; 112: second body; 113: first structural groove; 114: second structural groove; 115: third structural groove; 116: mounting groove; 117: snap-fit ​​recess; L: vibration direction. DETAILED DESCRIPTION

[0030] The following describes the implementation of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. The present application can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application.

[0031] For convenience of description, spatially relative terms such as "under", "below", "below", "below", "above", "on", etc. may be used herein to describe the relationship of one component or feature shown in the drawings to other components or features. It will be understood that these spatially relative terms are intended to encompass other orientations of the device in use or operation in addition to the orientation depicted in the drawings.

[0032] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two components or the interaction relationship between two components, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0033] See also Figure 1 , Figure 2 and Figure 3 ,in Figure 1 is a stereoscopic diagram of a loudspeaker according to an embodiment of the present application, Figure 2 for Figure 1 A stereogram of the speaker from another perspective. Figure 3 for Figure 1 3D exploded view of a speaker. As shown in the figure, the speaker 1 of this embodiment includes a sound box 10, a speaker unit 20, a damping member 30, a retaining member 40 and a reflex tube 50. The speaker unit 20 is arranged on one side of the sound box 10, the damping member 30 is arranged at multiple positions of the sound box 10, each retaining member 40 connects two damping members 30 to increase the rigidity of the structure, and the reflex tube 40 is arranged in the sound box 10 for sound output (for example, enhancing the output of bass).

[0034] Please also read Figure 4 , Figure 5 and Figure 6 ,in Figure 4 for Figure 1 A top view of the speaker. Figure 5 for Figure 4 Section view along line AA, Figure 6 Display as Figure 4Cross-sectional view along line BB. The speaker 10 includes a speaker body 11, a mounting hole 12 and a bass reflex hole 13. The speaker body 11 is composed of a front panel 11a and a rear panel 11b, and the front panel 11a and the rear panel 11b are combined to form a resonance cavity 11c inside. The speaker body 11 includes a first body 111 and a second body 112, and both the first body 111 and the second body 112 have cavities inside, and the cavity of the first body 111 is connected to the cavity of the second body 112 to form a resonance cavity 11c.

[0035] The first body 111 and the second body 112 have the same width, but the depth of the first body 111 is greater than the depth of the second body 112. The depth referred to herein refers to the distance from the front panel 11a to the rear panel 11b, and the length of the second body 112 is greater than the length of the first body 111. In this embodiment, the connection between the first body 111 and the second body 112 forms a stepped structure, and the center of the first body 111 and the center of the second body 112 are staggered, the center of the second body 112 is higher than the center of the first body 111, the position of the portion of the front panel 11a corresponding to the second body 112 is higher than the portion of the front panel 11a corresponding to the first body 111 to form a staggered structure, and similarly, the position of the portion of the rear panel 11b corresponding to the second body 112 is also higher than the portion of the front panel 11a corresponding to the first body 111 to form a staggered structure.

[0036] The speaker body 11 further includes two first structural grooves 113, two second structural grooves 114 and two third structural grooves 115. The two first structural grooves 113 are arc-shaped grooves and are formed at the connection between the first body 111 and the second body 112 to form a neck-shaped structure. The two second structural grooves 114 are arc-shaped grooves and are formed on the side of the first body 111 away from the second body 112. The two third structural grooves 115 are arc-shaped grooves and are formed on the side of the second body 112 away from the first body 111. That is, the second structural grooves 114 and the third structural grooves 115 are respectively formed on the opposite sides of the speaker body 11, and the first structural groove 113 is formed at the connection between the first body 111 and the second body 112.

[0037] The mounting hole 12 is formed in the portion of the front panel 11a corresponding to the first body 111, and the inverted hole 13 is formed in the portion of the rear panel 11b corresponding to the first body 111. The speaker 20 is arranged in the mounting hole 12 of the sound box 10 and extends to the resonance cavity 11c. The coil of the speaker 20 drives the diaphragm to vibrate back and forth along the vibration direction L through the current to generate sound waves. The vibration direction L is perpendicular to the front panel 11a, and the sound waves will be emitted from the front of the sound box 10. The sound waves in the sound box 10 are emitted from the inverted hole 13 through the inverted tube 50 and overlap with the sound waves emitted from the front of the sound box 10 to increase the amplitude of the low-frequency sound waves.

[0038] The inverted tube 50 is arranged across the first body 111 and the second body 112, and the tube opening at one end of the inverted tube 50 is connected to the inverted hole 13 located in the first body 111, and the tube opening at the other end of the inverted tube 50 is located in the second body 112. The inverted tube 50 of this embodiment has a horizontal section 51 and an inclined section 52, wherein the horizontal section 51 is located in the second body 112, and the inclined section 52 extends from the second body 112 to the first body 111 and is connected to the inverted hole 13. The rear panel 11b of the speaker body 11 forms a bell-mouth structure at the position corresponding to the inverted hole 13, and the tube opening at one end of the inverted tube 50 located in the second body 112 also forms a bell-mouth structure.

[0039] The damping member 30 is arranged on the front panel 11a and / or the rear panel 11b of the speaker body 11 of the speaker 10, and the axial direction of the damping member 30 is perpendicular to the vibration direction L. The front panel 11a is provided with a mounting groove 116 on both sides of the mounting hole 12, and the rear panel 11b is also provided with a mounting groove 116 on both sides of the inverted hole 13. The mounting groove 116 is an arc-shaped groove, and the extension direction of the mounting groove 116 is perpendicular to the vibration direction L. A plurality of snap-fit ​​recesses 117 are provided in the mounting groove 116. The damping member 30 is positioned in the mounting groove 116 by snapping into the snap-fit ​​recesses 117.

[0040] Please also read Figure 7 The damping member 30 is columnar, and includes a core material 31 and a coating material 32 covering the core material 31. The core material 31 is a rod-shaped structure made of metal material, and the coating material 32 is made of plastic. The rigidity of the core material 31 is greater than that of the coating material 32. Both ends of the core material 31 are exposed from the coating material 32. The outer peripheral surface of the coating material 32 is provided with a plurality of limiting flanges 32a, and the limiting flanges 32a are annular. The damping member 30 is arranged in the installation groove 116, and the buckle recess 117 is engaged with the outer peripheral surface of the coating material 32. At the same time, two adjacent limiting flanges 32a clamp the buckle recess 117, so that the buckle recess 117 and the limiting flange 32a limit the damping member 30 in three orthogonal directions, so that the damping member 30 is positioned in the installation groove 116.

[0041] Since the front panel 11a has a mounting groove 116 on both sides of the mounting hole 12, and the rear panel 11b has a mounting groove 116 on both sides of the inverted hole 13, a damping member 30 is provided on both sides of the mounting hole 12, and a damping member 30 is provided on both sides of the inverted hole 13. Each retaining member 40 connects a damping member 30 provided on the front panel 11a and a damping member 30 provided on the rear panel 11b, that is, each retaining member 40 connects a damping member 30 provided near the mounting hole 12 and a damping member 30 provided near the inverted hole 13. In this way, since the retaining member 40 connects the damping members 30 at two positions, the damping members 30 at two positions form an integrated structure, thereby further increasing the rigidity of the speaker 10 in parallel to the vibration direction L. The retaining member 40 forms plug holes 41 at opposite ends, respectively, and one end of the core material 31 of the damping member 30 is inserted into the plug hole 41.

[0042] A plurality of buckle recesses 117 are also disposed on a side of the second body 112 of the speaker body 11 away from the first body 111 , and a damping member 30 is disposed on a side of the second body 112 away from the first body 111 .

[0043] In addition, the first structural groove 113 , the second structural groove 114 and the third structural groove 115 all extend along the vibration direction L, so that the rigidity of the sound box 10 along the vibration direction L can also be increased.

[0044] By arranging a damping member in the sound box, when the sound box is affected by the sound waves in the internal resonance cavity and vibrates, the damping member can immediately slow down and eliminate the vibration of the sound box, thereby avoiding the generation of additional sound waves and noise due to the vibration of the sound box. In addition, the first structural groove, the second structural groove and the third structural groove connecting the retaining member of the damping member and the sound box body can increase the rigidity of the sound box along the vibration direction, thereby more quickly slowing down and eliminating the vibration of the sound box.

[0045] The above embodiments are merely illustrative of the principles and effects of the present application and are not intended to limit the present application. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present application. Therefore, all equivalent modifications or changes made by a person of ordinary skill in the art without departing from the spirit and technical ideas disclosed in the present application shall still be covered by the claims of the present application.

Claims

1. A loudspeaker, characterized in that: include: A speaker box, comprising a speaker box body and a mounting hole, wherein the speaker box body has a front panel and a rear panel and forms a resonance cavity inside, and the mounting hole is formed in the speaker box body; A speaker unit is arranged in the mounting hole of the sound box and extends to the resonance cavity, and the speaker unit reciprocates along the vibration direction to generate sound waves; A damping member is arranged on the front panel and / or the rear panel of the speaker body of the speaker, and the axial direction of the damping member is perpendicular to the vibration direction; The damping member is columnar and comprises a core material and a cladding material covering the core material, and the rigidity of the core material is greater than that of the cladding material.

2. The loudspeaker according to claim 1, characterized in that The mounting hole is formed on the front panel, the damping members are multiple in number, at least one of the damping members is arranged close to the front panel of the speaker body, and at least one of the damping members is arranged close to the rear panel of the speaker body.

3. The loudspeaker according to claim 2, characterized in that It also includes at least one retaining member, at least one of the retaining members extends along the vibration direction, and at least one of the retaining members connects the damping member arranged close to the front panel and the damping member arranged close to the rear panel.

4. The loudspeaker according to claim 3, characterized in that The retaining member is formed with inserting holes at two opposite ends respectively, and one end of the core material of the damping member is inserted into the inserting hole.

5. The loudspeaker according to claim 2, characterized in that It also includes a bass reflex tube, which is arranged in the resonance cavity of the speaker body. The speaker also includes a bass reflex hole, which is arranged on the rear panel of the speaker body. One end of the bass reflex tube is connected to the bass reflex hole.

6. The loudspeaker according to claim 5, characterized in that The speaker body includes a first body and a second body connected to the first body, the first body and the second body have different depths, the depth is defined as the distance between the front panel and the rear panel, the mounting hole and the bass reflex hole are both arranged on the first body, and the other end of the bass reflex tube is located on the second body.

7. The loudspeaker according to claim 6, characterized in that The speaker body further includes two first structural grooves, which are formed at the connection between the first body and the second body to form a necked structure, and the two first structural grooves extend along the vibration direction.

8. The loudspeaker according to claim 7, characterized in that The speaker body further includes two second structural grooves, the two second structural grooves are formed on a side of the first body away from the second body, and the two second structural grooves extend along the vibration direction.

9. The loudspeaker according to claim 7, characterized in that The speaker body further includes two third structural grooves, which are formed on a side of the second body away from the first body, and extend along the vibration direction.

10. The loudspeaker according to claim 6, characterized in that A connection between the first body and the second body forms a stepped structure, and a center of the second body and a center of the first body are staggered with each other.

11. The loudspeaker according to claim 6, characterized in that The front panel is provided with at least one damping member on opposite sides of the mounting hole of the first body, and the rear panel is provided with at least one damping member on opposite sides of the inverted hole of the first body.

12. The loudspeaker according to claim 11, characterized in that The front panel is provided with at least one damping member on a side of the second body away from the mounting hole.

13. The loudspeaker according to claim 1, wherein: The speaker box further comprises a mounting groove, wherein the mounting groove is formed on the front panel and / or the rear panel, the mounting groove extends in a direction perpendicular to the vibration direction, and the damping member is arranged in the mounting groove.

14. The loudspeaker according to claim 13, characterized in that The speaker box also includes a plurality of snap-on recesses, which are arranged in the installation groove. The covering material of the damping member is provided with a plurality of limiting flanges, which are engaged with the snap-on recesses, and the plurality of limiting flanges clamp the snap-on recesses.

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