Thin high-power woofer

Abstract

The invention relates to a thin high-power woofer, which comprises a basin frame, a sound production assembly and a diaphragm assembly, the sound production assembly comprises a voice coil, an arch bridge and a damper. The arch bridge comprises a groove-shaped part, a voice coil mounting ring, a vibrating diaphragm mounting step and a damper mounting step. In the arrangement direction of the sound production assembly and the magnetic circuit assembly, the voice coil installation ring and the vibrating diaphragm installation step are located on the two sides of the groove-shaped part respectively, and the distance from the voice coil installation ring to the damper installation part is larger than the distance from the damper installation step to the damper installation part so that the voice coil can have a larger moving row. And a process. According to the woofer, the magnetic circuit assembly, the sound production assembly, the vibrating diaphragm assembly and other parts are all accommodated in the basin stand, and the vibrating diaphragm assembly and the damper are separated from the voice coil by using the arch bridge in the sound production assembly, so that the size of the woofer along the sound output direction is reduced, namely the woofer is thinner.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sound box equipment, in particular to a thin and high-power bass speaker. BACKGROUND

[0002] In daily use, a combination sound box is usually used to obtain a full-range sound, so as to meet people's needs. The combination sound box is used by combining multiple sound boxes together to improve the treble and bass effects of the whole sound box, and is mainly used in large-scale performance places indoors or outdoors. Therefore, in order to provide integration, some thin and small-volume speakers are used. However, small volume and high power are contradictory to each other, because in order to have high power, the volume of each sound generating element, such as the magnetic circuit system, the voice coil, the damper, the diaphragm and the like, needs to be increased. If these elements are increased in size, it is impossible to achieve small volume.

[0003] For example, the patent No. CN202123086408.X discloses a double-layer damper structure automobile super heavy bass speaker, which comprises a T iron, an iron net, a ferrite magnet, a Hua Si, a terminal, an aluminum basin frame, a damper assembly, a drum paper and a voice coil. The iron net is bonded to the end of the T iron. The ferrite magnet and the Hua Si are sleeved on the T iron. The T iron, the ferrite magnet and the Hua Si are sequentially bonded and connected. The Hua Si is fixed to the left side of the aluminum basin frame by a fastener. The damper assembly is bonded to the right side of the aluminum basin frame. The damper assembly comprises a left damper, a plastic gasket and a right damper which are sequentially arranged from left to right and are bonded to each other. The damper assembly is bonded to the voice coil. The drum paper is arranged on the right side of the damper assembly and is bonded to the damper assembly and the aluminum basin frame respectively.

[0004] Although the above-mentioned patent can achieve the effect of super heavy bass, the size of the elements arranged along the direction of the T iron, the iron net, the ferrite magnet, the Hua Si and the terminal is large, which is not conducive to subsequent assembly, especially not conducive to integration into a combination sound box. SUMMARY

[0005] Therefore, the present application provides a thin and high-power bass speaker which can solve the above-mentioned problems.

[0006] A thin and high-power bass speaker includes a basket, a sound production assembly accommodated in the basket, and a diaphragm assembly disposed between the basket and the sound production assembly. The sound production assembly includes a voice coil, an arch bridge fixedly connected to the voice coil, and a spider connected to the other end of the arch bridge opposite to the voice coil. The arch bridge includes a groove-shaped portion, a voice coil mounting ring disposed on the side of the groove-shaped portion facing the voice coil, a diaphragm mounting step disposed on the side of the arch bridge opposite to the voice coil mounting ring, and a spider mounting step disposed on the same side as the diaphragm mounting step. The voice coil mounting ring and the diaphragm mounting step are separated from each other on both sides of the groove-shaped portion in the arrangement direction of the sound production assembly and the magnetic circuit assembly, and the distance from the voice coil mounting ring to the spider mounting portion is greater than the distance from the diaphragm mounting step to the spider mounting portion, so that the voice coil has a greater active stroke. The diaphragm mounting step is disposed between the voice coil mounting ring and the spider mounting step. The groove-shaped portion between the diaphragm mounting step and the voice coil mounting ring allows the diaphragm mounting step to not only have an active stroke in the axial direction under the action of the voice coil, but also reciprocate in a direction perpendicular to the arrangement direction of the sound production assembly and the magnetic circuit assembly, so as to reduce the deformation of the diaphragm assembly in the direction perpendicular to the arrangement direction of the sound production assembly and the magnetic circuit assembly during vibration, thereby reducing distortion.

[0007] Further, the thin and high-power bass speaker further includes a magnetic circuit assembly accommodated in the basket, the magnetic circuit assembly including a T-shaped iron fixedly disposed on the basket, a magnet sleeved on the T-shaped iron, and a dust shield disposed on the magnet.

[0008] Further, the T-shaped iron includes a ring-shaped portion assembled on the basket and a T-shaped portion fixed on the ring-shaped portion, the T-shaped portion including a connecting portion connected to the ring-shaped portion and an insertion portion inserted into the ring-shaped portion, the insertion portion being spaced apart from the ring-shaped portion to insert the voice coil of the sound production assembly.

[0009] Further, the outer side of the ring-shaped portion is provided with a step portion connected to the basket.

[0010] Further, the arch bridge is made of aluminum alloy.

[0011] Further, at least one row of heat dissipation holes is provided on the groove-shaped portion.

[0012] Further, in the cross section in the arrangement direction of the sound production assembly and the magnetic circuit assembly, the spider is located in the middle of the coil of the voice coil.

[0013] Further, the distance between the voice coil mounting ring and the speaker membrane mounting step is greater than the distance between the voice coil mounting ring and the speaker membrane mounting step in the arrangement direction of the sound production assembly and the magnetic circuit assembly, so that the speaker membrane reduces deformation in the arrangement direction of the sound production assembly and the magnetic circuit assembly.

[0014] Further, the speaker membrane assembly includes a speaker membrane fixed at one end on the speaker membrane mounting step, and a folded ring arranged between the speaker membrane and the basket.

[0015] Further, the basket is integrally formed and includes a magnetic circuit mounting portion for assembling the magnetic circuit assembly, a speaker membrane mounting portion for assembling the speaker membrane assembly, and a speaker membrane mounting portion for assembling the speaker membrane assembly.

[0016] Compared with the prior art, the thin and high-power bass speaker provided by the present application has the following advantages. The magnetic circuit assembly, the sound production assembly, the speaker membrane assembly, and other components are all accommodated in the basket. The arch bridge is used in the sound production assembly to separate the speaker membrane assembly and the speaker membrane from the voice coil. Compared with the traditional structure in which the speaker membrane and the speaker membrane are both fixed on the voice coil, the bass speaker is more conducive to reducing the size in the sound output direction, i.e., it is thinner. Moreover, due to the presence of the arch bridge, the bass speaker is conducive to achieving high power while being thin, and reducing distortion. Specifically, the distance between the voice coil mounting ring and the speaker membrane mounting step in the arrangement direction of the sound production assembly and the magnetic circuit assembly is greater than the distance between the voice coil mounting ring and the speaker membrane mounting step in the arrangement direction of the sound production assembly and the magnetic circuit assembly, so that the voice coil has a greater activity distance, i.e., a greater activity stroke, which is conducive to improving the power of the bass speaker. Due to the presence of the groove-shaped portion, the speaker membrane mounting step has an arch-shaped structure between the voice coil mounting ring and the speaker membrane mounting step, so that the speaker membrane mounting step not only has an activity stroke in the axial direction under the drive of the voice coil, but also can reciprocate in a direction perpendicular to the arrangement direction of the sound production assembly and the magnetic circuit assembly. Therefore, the distortion of the speaker membrane during vibration can be reduced, and the distortion of the bass speaker can be reduced. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 A cross-sectional structure diagram of a thin and high-power bass speaker provided by the present application.

[0018] Figure 2 Fig. 1 is a schematic view of a cross section of an arch bridge of a thin and high-power bass speaker according to the present application. Figure 1 Fig. 2 is a schematic view of an exploded structure of the thin and high-power bass speaker according to the present application.

[0019] Figure 3 Fig. 3 is a schematic view of a cross section of an arch bridge of the thin and high-power bass speaker according to the present application. Figure 1 Fig. 4 is a schematic view of an exploded structure of the thin and high-power bass speaker according to the present application. DETAILED DESCRIPTION

[0020] The specific embodiments of the present application will be further described in detail below. It should be understood that the description of the embodiments of the present application herein is not intended to limit the scope of protection of the present application.

[0021] As shown in Fig. 1, it is a schematic view of a structure of a thin and high-power bass speaker according to the present application. The thin and high-power bass speaker comprises a basket 10, a magnetic circuit assembly 20 accommodated in the basket 10, a sound production assembly 30 arranged between the basket 10 and the magnetic circuit assembly 20, and a diaphragm assembly 40 arranged between the sound production assembly 30 and the basket 10. It is conceivable that the thin and high-power bass speaker further comprises other functional modules, such as an electrical connection assembly, an assembly assembly, etc., which are known to those skilled in the art and will not be described one by one herein. Figures 1 to 3 The basket 10 can be made of metal, such as aluminum alloy. The basket 10 is overall bowl-shaped to conform to the outer contour shape of the magnetic circuit assembly 20 and the sound production assembly 30. Meanwhile, the basket 10 is also hollow to facilitate heat dissipation. The basket 10 is integrally formed and comprises a magnetic circuit mounting portion 11 for assembling the magnetic circuit assembly 20, a speaker cone mounting portion 12 for assembling the sound production assembly 30, and a diaphragm mounting portion 13 for assembling the diaphragm assembly 40. The magnetic circuit mounting portion 11, the speaker cone mounting portion 12, and the diaphragm mounting portion 13 are all circular ring structures and are arranged at intervals, which will be described below in combination with the magnetic circuit assembly 20 and the sound production assembly 30.

[0022]

[0023] ​The magnetic circuit assembly 20 comprises a T-shaped iron 21 fixed on the magnetic circuit mounting portion 11, a magnet 22 sleeved on the T-shaped iron 21, and a dust shield 23 arranged on the magnet 22. The functions of the T-shaped iron 21, the magnet 22, and the dust shield 23 are known in the art, and thus will not be described here. In the present embodiment, the T-shaped iron 21 is divided into two parts, i.e. a ring-shaped portion 211 assembled on the magnetic circuit mounting portion 11 and a T-shaped portion 212 fixed on the ring-shaped portion 211. The outer side of the ring-shaped portion 211 is provided with a stepped portion 213. The stepped portion 213 is connected with the yoke 10, and in particular is fixedly connected with the magnetic circuit mounting portion 11. The connection method can be adhesive bonding or fastening. The provision of the stepped portion 213 is advantageous in reducing the axial dimension of the bass speaker, i.e. the dimension along the arrangement direction of the magnetic circuit assembly 20 and the sound production assembly 30. The T-shaped portion 212 comprises a connecting portion 214 connected with the ring-shaped portion 211 and an insertion portion 215 inserted in the ring-shaped portion 211. The connecting portion 214 is fixedly connected with the ring-shaped portion 211, and the connection method can be adhesive bonding or fastening. In the present embodiment, the connecting portion 214 is adhesive bonded with the ring-shaped portion 211. In addition, in order to reduce the axial dimension of the bass speaker, an inner stepped portion (not shown) is further provided on the inner side wall of the ring-shaped portion 211, and the connecting portion 214 is arranged on the inner stepped portion. The insertion portion 215 is spaced apart from the ring-shaped portion 211 to insert the voice coil 31 of the sound production assembly 30.

[0024] The sound production assembly 30 comprises a voice coil 31 inserted between the insertion portion 215 and the ring-shaped portion 211, an arch bridge 32 fixedly connected with the voice coil 31, a damper 33 connected with the other end of the arch bridge 32 away from the voice coil 31, and a support ring 34 arranged on the other end of the damper 33 away from the arch bridge 32. The voice coil 31 is known in the art, and is a coil wound on the outer side of a cylindrical structure. When an alternating current is applied to the coil, the coil will reciprocate along the axial direction of the voice coil 31 under the action of the magnetic field formed by the magnet 22, thereby driving the diaphragm 40 to reciprocate, and achieving the purpose of sound production.

[0025] The arch bridge 32 is made of metal, preferably aluminum alloy, to achieve better heat dissipation, thus facilitating the improvement of the output power of the voice coil 31. In the cross section along the arrangement direction of the sound production component 30 and the magnetic circuit component 20, the arch bridge 32 comprises a groove-shaped portion 321, a voice coil mounting ring 322 arranged on the side of the groove-shaped portion 321 facing the voice coil 31, a diaphragm mounting step 323 arranged on the side opposite to the voice coil mounting ring 322, and a spider mounting step 324 arranged on the same side as the diaphragm mounting step 323. The groove-shaped portion 321 is provided with at least one row of heat dissipation holes 325, further improving the heat dissipation of the voice coil 31 connected thereto. The voice coil mounting ring 322 and the diaphragm mounting step 323 are arranged on the two sides of the groove-shaped portion along the arrangement direction of the sound production component 30 and the magnetic circuit component 20, and the distance from the voice coil mounting ring 322 to the spider mounting portion 12 is greater than the distance from the diaphragm mounting step 323 to the spider mounting portion 12, so that the voice coil 31 has a larger movement distance, i.e. a larger movement stroke, thus facilitating the improvement of the power of the bass speaker. The voice coil mounting ring 322 and the voice coil 31 can be fixed by gluing. The diaphragm mounting step 323 is arranged between the voice coil mounting ring 322 and the spider mounting step 324. The diaphragm mounting step 323 and the voice coil mounting ring 321 have an arch-shaped structure, so that the diaphragm mounting step 323 not only has an axial movement stroke driven by the voice coil 31, but also can reciprocate perpendicular to the arrangement direction of the sound production component 30 and the magnetic circuit component 20, thus reducing the deformation of the diaphragm 40 during vibration perpendicular to the arrangement direction of the sound production component 30 and the magnetic circuit component 20, thereby reducing distortion, which is very important for high-power speakers, because one of the reasons for the distortion of the speaker is that the diaphragm vibrates too much in the radial direction. Of course, it is conceivable that the diaphragm mounting step 323 is used to assemble the diaphragm 40. The spider mounting step 324 is used to assemble the spider 33. Due to the presence of the groove-shaped portion 321, the distance from the spider mounting step 324 to the voice coil mounting ring 322 can be as far as possible, so that the spider 33 can have as little movement and deformation as possible along the arrangement direction of the sound production component 30 and the magnetic circuit component 20, and more reciprocation perpendicular to the arrangement direction of the sound production component 30 and the magnetic circuit component 20, which also helps to reduce the distortion of the bass speaker. Specifically, the distance from the spider mounting step 324 to the voice coil mounting ring 322 is greater than the distance from the diaphragm mounting step 323 to the voice coil mounting ring 322 along the arrangement direction of the sound production component 30 and the magnetic circuit component 20.The support ring 34 is used to adapt the position of the spring mounting step 324, and to ensure that the radial direction of the spring 33 is perpendicular to the arrangement direction of the sound production assembly 30 and the magnetic circuit assembly 20. This is because in order to ensure that the spring 33 has a better restoring effect, i.e. to maintain the balance and stability of the reciprocating movement of the voice coil 31, the spring 33 should be located at the middle part of the coil on the voice coil 31 in the cross section along the arrangement direction of the sound production assembly 30 and the magnetic circuit assembly 20. At the same time, due to the existence of the arch bridge 32, the diaphragm assembly 40 and the spring 33 are no longer directly connected to the voice coil 31, so that the size along the arrangement direction of the sound production assembly 30 and the magnetic circuit assembly 20 can be reduced, thereby facilitating the production of a thin and high-power loudspeaker. Because if it is high-power, the stroke of the voice coil 31 must be large, which inevitably leads to the stroke of the diaphragm assembly 40 also being large, which leads to a large axial height of the loudspeaker. At the same time, because the spring 33 is used to constrain the axial movement of the voice coil 31, in the prior art, the spring 33 and the diaphragm assembly 40 are separated at the axial ends of the voice coil 31, which further leads to a large axial height of the loudspeaker, making it difficult to achieve thinness.

[0026] The spring 33 itself should be a prior art, also known as a centering support, and its main functions include maintaining the vertical position of the voice coil 31 in the magnetic gap, constraining the axial movement of the vibration system, positioning the diaphragm together with the folded ring, providing restoring force, and also having a dustproof function. The spring 33 is usually made of corrugated composite material, and will not be described in detail here.

[0027] The support ring 34 can be made of non-metallic material, and is fixed at one axial end on the spring mounting portion 12, and at the other axial end for fixing the spring 33. The axial length and radial size of the support ring 34 are determined by the size of the spring 33.

[0028] The diaphragm assembly 40 includes a diaphragm 41 fixedly arranged at one end on the diaphragm mounting step 323, and a folded ring 42 arranged between the diaphragm 41 and the basket 10. The diaphragm 41 and the folded ring 42 are both prior art, and their structures and functions will not be described in detail here. It can be understood that a dust cover can also be arranged at the center of the diaphragm 41, which is also prior art and will not be described in detail here.

[0029] In use, when the voice coil 31 inputs an alternating current of a certain power, it reciprocates under the joint action of the magnetic circuit assembly 20, thereby driving the diaphragm assembly 40 to reciprocate, and then emitting the desired sound.

[0030] Compared with the prior art, the thin and high-power bass loudspeaker provided by the application has the advantages that all the components, such as the magnetic circuit assembly 20, the sound production assembly 30 and the diaphragm assembly 40, are accommodated in the yoke 10, and the diaphragm assembly 40 and the damper 33 are separated from the voice coil 31 by using the arch bridge 32 in the sound production assembly 30, so that the bass loudspeaker is more conducive to reducing the size in the sound emission direction, i.e., the thickness, and is conducive to realizing high power and reducing distortion while being thin due to the presence of the arch bridge 32. Specifically, the distance from the voice coil mounting ring 322 to the damper mounting portion 12 is greater than the distance from the damper mounting step 324 to the damper mounting portion 12 along the arrangement direction of the sound production assembly 30 and the magnetic circuit assembly 20, so that the voice coil 31 has a greater moving distance, i.e., a greater moving stroke, thereby being conducive to improving the power of the bass loudspeaker. Due to the presence of the groove-shaped portion 321, the diaphragm mounting step 323 and the voice coil mounting ring 321 have an arch-shaped structure, so that the diaphragm mounting step 323 not only has an axial moving stroke driven by the voice coil 31, but also can reciprocate along a direction perpendicular to the arrangement direction of the sound production assembly 30 and the magnetic circuit assembly 20, thereby reducing the deformation of the diaphragm 40 perpendicular to the arrangement direction of the sound production assembly 30 and the magnetic circuit assembly 20 during vibration, and reducing distortion. At the same time, due to the presence of the groove-shaped portion 321, the distance from the damper mounting step 324 to the voice coil mounting ring 322 can be as far as possible, so that the damper 33 can have more reciprocating motion along a direction perpendicular to the arrangement direction of the sound production assembly 30 and the magnetic circuit assembly 20, and less movement and deformation along the arrangement direction of the sound production assembly 30 and the magnetic circuit assembly 20, which is also conducive to reducing the distortion of the bass loudspeaker.

[0031] The above is only the preferred embodiment of the application, and is not used to limit the protection scope of the application, and any modification, equivalent replacement or improvement within the spirit of the application is covered by the claim scope of the application.

Claims

1. A thin, high-power subwoofer, characterized in that: The thin, high-power woofer includes a frame, a sound-generating assembly housed within the frame, and a diaphragm assembly disposed between the frame and the sound-generating assembly. The sound-generating assembly includes a voice coil, an arch fixedly connected to the voice coil, and a spider connected to the other end of the arch facing away from the voice coil. The arch includes a groove, a voice coil mounting ring disposed on the side of the groove facing the voice coil, a diaphragm mounting step disposed on the side facing away from the voice coil mounting ring, and a spider mounting step disposed on the same side as the diaphragm mounting step. Along the arrangement direction of the sound-generating assembly and the magnetic circuit assembly, the voice coil mounting ring and the diaphragm mounting step are connected... The steps are located on both sides of the groove-shaped portion, and the distance from the voice coil mounting ring to the spider mounting portion is greater than the distance from the spider mounting step to the spider mounting portion, so that the voice coil has a larger travel. The diaphragm mounting step is located between the voice coil mounting ring and the spider mounting step. The groove between the diaphragm mounting step and the voice coil mounting ring allows the diaphragm mounting step to not only have an axial travel driven by the voice coil, but also to reciprocate along the direction perpendicular to the arrangement of the sound-generating component and the magnetic circuit component, so as to reduce the deformation of the diaphragm component perpendicular to the arrangement direction of the sound-generating component and the magnetic circuit component during vibration, thereby reducing distortion.

2. The thin, high-power subwoofer as described in claim 1, characterized in that: The thin, high-power woofer also includes a magnetic circuit assembly housed in the frame, the magnetic circuit assembly including a T-shaped iron fixedly mounted on the frame, a magnet sleeved on the T-shaped iron, and a washer mounted on the magnet.

3. The thin, high-power subwoofer as described in claim 2, characterized in that: The T-shaped part includes an annular portion assembled on the frame and a T-shaped portion fixed on the annular portion. The T-shaped portion includes a connecting portion connected to the annular portion and an insertion portion inserted into the annular portion. The insertion portion is spaced apart from the annular portion to insert the voice coil of the sound-generating component.

4. The thin, high-power subwoofer as described in claim 1, characterized in that: A stepped portion is provided on the outer side of the annular portion, and the stepped portion is connected to the basin stand.

5. The thin, high-power subwoofer as described in claim 1, characterized in that: The arch bridge is made of aluminum alloy.

6. The thin, high-power subwoofer as described in claim 1, characterized in that: The groove-shaped portion has at least one row of heat dissipation holes.

7. The thin, high-power subwoofer as described in claim 1, characterized in that: In a cross-section along the arrangement direction of the sound-generating component and the magnetic circuit component, the spider is located in the middle of the coil on the voice coil.

8. The thin, high-power subwoofer as described in claim 2, characterized in that: Along the arrangement direction of the sound-generating component and the magnetic circuit component, the distance between the spider mounting step and the voice coil mounting ring is greater than the distance between the diaphragm mounting step and the voice coil mounting ring, so that the spider reduces deformation along the arrangement direction of the sound-generating component and the magnetic circuit component.

9. The thin, high-power subwoofer as described in claim 1, characterized in that: The diaphragm assembly includes a diaphragm fixed at one end on the diaphragm mounting step, and a folding ring disposed between the diaphragm and the frame.

10. The thin, high-power subwoofer as described in claim 1, characterized in that: The frame is integrally formed and includes a magnetic circuit mounting part for assembling the magnetic circuit assembly, a spindle mounting part for assembling the spindle assembly, and a diaphragm mounting part for assembling the diaphragm assembly.

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