Loudspeaker

Abstract

The utility model discloses a loudspeaker, which comprises a vibrating reed, and the vibrating reed comprises an annular main body and a plurality of bent channels. The bent channels are arranged in the annular body in a circumferential array mode, each bent channel comprises a first arc-shaped part, a connecting part and a second arc-shaped part which are sequentially connected in a penetrating mode, the diameter of each first arc-shaped part is larger than that of each second arc-shaped part, and the first arc-shaped part of one bent channel and the second arc-shaped part of the other bent channel are staggered between every two adjacent bent channels. A centrifugal section extending outwards is arranged at the starting point of the first arc-shaped part, and a centripetal section extending inwards is arranged at the end point of the second arc-shaped part. According to the utility model, internal vibration of the loudspeaker can be effectively suppressed through the vibrating reed, noise can be reduced, sound quality distortion can be significantly reduced, sound definition and detail performance can be improved, vibration can be effectively reduced, the stability of the structure can be ensured, and the service life can be prolonged.

Description

Technical Field

[0001] The utility model relates to a loudspeaker. Background Art

[0002] A loudspeaker fixes a magnetic circuit element in a base. The magnetic circuit element generates a magnetic field. When a current signal is loaded onto a voice coil, the voice coil vibrates, and the vibration mode conducts the vibration to emit sound, realizing the conversion of the current signal into a sound signal. However, during the vibration of the voice coil, the vibration of the voice coil will act on the magnetic circuit element in reverse, causing the magnetic circuit element to vibrate along with the vibration of the voice coil, thus easily causing noise. Content of the Utility Model

[0003] The purpose of the utility model is to provide a loudspeaker that can effectively suppress the vibration of the magnetic circuit element.

[0004] To achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A loudspeaker includes a diaphragm, and the diaphragm includes:

[0006] An annular main body;

[0007] A plurality of curved channels, which are circumferentially arrayed in the annular main body. The curved channels include a first arc portion, a connecting portion, and a second arc portion that are sequentially connected in a penetrating manner. The diameter of the first arc portion is larger than that of the second arc portion. Between adjacent curved channels, the first arc portion of one curved channel is offset from the second arc portion of another curved channel. An outward extending centrifugal section is provided at the starting point of the first arc portion, and an inward extending centripetal section is provided at the ending point of the second arc portion.

[0008] Further, the number of the curved channels is N, and the range of N is 2 ≤ N ≤ 4.

[0009] Further, the outer diameter of the annular main body is D1, the inner diameter is D2, 8mm ≤ D2 < D1 ≤ 20mm, the diameter of the first arc portion is 14 - 14.5mm, and the diameter of the second arc portion is 11.5 - 12.5mm.

[0010] Further, the width of the curved channel is W, and the dimension range of W is 0.2mm ≤ W ≤ 0.6mm.

[0011] Further, the lengths of the centrifugal section and the centripetal section are 0.7 - 1mm.

[0012] Further, the diaphragm is made of a metal material.

[0013] Further, the thickness of the diaphragm is t, and the dimension range of t is 0.1mm ≤ t ≤ 0.3mm.

[0014] Furthermore, it further includes a chassis, a front cover, a diaphragm, a voice coil and a magnetic circuit component. The front cover, the diaphragm and the vibrating piece are sequentially installed in the chassis from top to bottom. The voice coil is adhered below the diaphragm, and the magnetic circuit component is suspended in the inner diameter of the vibrating piece.

[0015] Furthermore, the magnetic circuit component includes a washer, a magnet and a magnetic conductive plate which are sequentially installed from top to bottom. The magnetic conductive plate is in a U-cup shape and is nested and suspended in the inner diameter of the vibration.

[0016] Furthermore, a detachable rear cover is provided at the bottom of the chassis.

[0017] After adopting the above technical solution, compared with the background technology, the present utility model has the following advantages:

[0018] 1. By providing a plurality of bending channels on the annular body of the vibrating piece, the present utility model forms elastic and self-resetting rib plates. When affected by the magnetic circuit component, the rib plates can conduct the vibration in all directions. Coupled with the self-resetting effect of the vibrating piece to form damping, part of the vibration is offset, and the vibration generated by the voice coil is blocked from being conducted to the magnetic circuit component; at the same time, a centrifugal section extending outward is provided at the starting point of the first arc portion, and a centripetal section extending inward is provided at the end point of the second arc portion. Through this structural setting, while effectively reducing vibration, the root of the rib plate can be made thick, avoiding deformation or even fracture of the rib plate due to the concentrated stress here, ensuring the structural stability and increasing the service life.

[0019] 2. The vibrating piece of the present utility model can effectively suppress the vibration of the magnetic circuit component inside the speaker, reduce resonance, thereby significantly reducing noise and improving sound clarity and detail performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of the vibrating piece of the present utility model;

[0021] Figure 2 is a top view of the vibrating piece of the present utility model;

[0022] Figure 3 is a schematic diagram of the bending channels of the vibrating piece of the present utility model;

[0023] Figure 4 is a top view of a vibrating piece;

[0024] Figure 5 is a schematic structural diagram of the present utility model.

[0025] Description of the reference numerals:

[0026] 1. Base frame; 11. Front cover; 12. Rear cover; 2. Vibration diaphragm; 3. Voice coil; 41. Washer; 42. Magnet; 43. Magnetic conductive plate; 5. Diaphragm; 51. Annular body; 52. Bending channel; 521. First arc portion; 5211. Centrifugal section; 522. Second arc portion; 5221. Centripetal section; 523. Connecting portion; 53. Rib plate. Detailed implementation manner

[0027] In order to make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model. In addition, it should be noted that:

[0028] The terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are all based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element of the present utility model must have a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0029] When an element is referred to as "fixed to" or "disposed on" or "provided on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0030] Unless otherwise clearly defined and limited, the terms "installation", "connection", and "connection" 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 directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the utility model can be understood according to specific circumstances.

[0031] Embodiment 1:

[0032] Please refer to Figure 1 and Figure 4 As shown, the present utility model discloses a loudspeaker, which includes a diaphragm 5. The diaphragm 5 includes an annular body 51 and a plurality of bending channels 52.

[0033] Please refer to Figure 1 and Figure 2As shown, multiple curved channels 52 are circumferentially arrayed in the annular body 51. Each curved channel 52 includes a first arc portion 521, a connecting portion 523, and a second arc portion 522 that are sequentially connected in a penetrating manner. The diameter of the first arc portion 521 is larger than that of the second arc portion 522, and the connecting portion 523 has a streamlined structure. Between adjacent curved channels 52, the first arc portion 521 of one curved channel 52 is offset from the second arc portion 522 of another curved channel 52.

[0034] In this way, by providing a number of curved channels 52 on the annular body of the vibrating piece 5, elastic changeable and self-resetting rib plates 53 are formed. When affected by the magnetic circuit element, the rib plates 53 can conduct vibrations in all directions. Coupled with the self-resetting effect of the vibrating piece 5 to form damping, part of the vibration is offset, vibration suppression is achieved, thereby effectively reducing the vibration of the magnetic circuit element, reducing noise, and improving sound clarity and detail performance.

[0035] Designed in this way, its structure is as Figure 3 shown. Its stress will accumulate at the root of the rib plate 53, and the root of the rib plate 53 is too thin, with a width of only L1, which easily causes fatigue fracture at the root of the rib plate 53 during long-term vibration. Therefore, please refer to Figures 1 - 3 shown. In the present utility model, a centrifugal section 5211 extending outward is provided at the starting point of the first arc portion 521, and a centripetal section 5221 extending inward is provided at the end point of the second arc portion 522, so that the roots of both ends of the rib plate 53 become thick, and the root width becomes L2. It can be seen from the figure that under the same specifications, L2 is more than twice that of L1, effectively improving the fatigue resistance of the root of the rib plate 53.

[0036] In the present utility model, the number of curved channels 52 is N, and the range of N is 2 ≤ N ≤ 4. In the structure as Figure 1 shown, N = 3.

[0037] Please refer to Figure 2 shown. In a feasible example, the outer diameter of the annular body 51 is D1, the inner diameter is D2, 8 mm ≤ D2 < D1 ≤ 20 mm, the diameter of the first arc portion 521 is 14 - 14.5 mm, and the diameter of the second arc portion 522 is 11.5 - 12.5 mm. The width of the curved channel 52 is W, and the dimension range of W is 0.2 mm ≤ W ≤ 0.6 mm. The lengths of the centrifugal section 5211 and the centripetal section 5221 are 0.7 - 1 mm.

[0038] In a feasible example, the vibrating piece 5 is made of metal, and the thickness of the vibrating piece 5 is t, and the dimension range of t is 0.1 mm ≤ t ≤ 0.3 mm.

[0039] Please refer to Figure 5As shown in the figure, the present utility model further includes a base frame 1, a front cover 11, a diaphragm, a voice coil 3, a magnetic circuit element, and a rear cover 12. Among them, the front cover 11, the diaphragm, the vibrating piece, and the rear cover 12 are sequentially installed on the base frame 1 from top to bottom. Among them, the rear cover 12 is a detachable rear cover 12. The voice coil 3 is adhered below the diaphragm, and the magnetic circuit element is suspended in the inner diameter of the vibrating piece.

[0040] The magnetic circuit member is used to generate a magnetic field. The voice coil 3 is sleeved in the magnetic circuit element. When the voice coil 3 passes through a current signal, the voice coil 3 will vibrate according to the magnitude of the current under the action of the constant magnetic field. When the vibration is conducted through the diaphragm, the conversion of the current signal to the sound signal is realized.

[0041] The vibrating piece 5 is used to suspend the magnetic circuit element. When the magnetic circuit element vibrates under the reaction force of the voice coil, the vibration will be conducted in all directions through several rib plates 53 on the vibrating piece 5, and the vibration will be cancelled in all directions under the damping effect, suppressing the vibration of the magnetic circuit element.

[0042] Among them, the magnetic circuit element includes a washer 41, a magnet 42, and a magnetic conductive plate 43 that are sequentially installed from top to bottom. The magnetic conductive plate 43 is in a U-cup shape to form a fixed flange at the edge, so as to be nested and suspended on the inner diameter of the vibration. The washer 41 and the magnet 42 are sequentially adhered to the bottom of the U-cup from top to bottom and have a spaced space from the inner wall of the U-cup. The voice coil 3 is sleeved in the spaced space.

[0043] As mentioned above, it is only the preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present utility model should be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claims.

Claims

1. A loudspeaker, comprising a diaphragm, characterized in that, The vibrating piece includes: An annular body; Multiple curved channels which are circumferentially arrayed in the annular body. The curved channels include a first arc portion, a connecting portion, and a second arc portion that are successively intersecting and connected. The diameter of the first arc portion is larger than that of the second arc portion. Between adjacent curved channels, the first arc portion of one curved channel is offset from the second arc portion of another curved channel. An outwardly extending centrifugal section is provided at the starting point of the first arc portion, and an inwardly extending centripetal section is provided at the ending point of the second arc portion.

2. The loudspeaker according to claim 1, characterized in that: The number of the curved channels is N, and the range of N is 2 ≤ N ≤ 4.

3. The loudspeaker according to claim 1, wherein: The outer diameter of the annular body is D1, and the inner diameter is D2, where 8mm ≤ D2 < D1 ≤ 20mm. The diameter of the first arc portion is 14 - 14.5mm, and the diameter of the second arc portion is 11.5 - 12.5mm.

4. The loudspeaker according to claim 3, characterized in that: The width of the curved channel is W, and the dimension range of W is 0.2mm ≤ W ≤ 0.6mm.

5. The loudspeaker according to claim 4, wherein: The lengths of the centrifugal section and the centripetal section are 0.7 - 1mm.

6. The loudspeaker according to claim 1, characterized in that: The vibrating piece is made of metal.

7. The loudspeaker according to claim 6, wherein: The thickness of the vibrating piece is t, and the dimension range of t is 0.1mm ≤ t ≤ 0.3mm.

8. The loudspeaker according to claim 1, wherein: It further includes a base frame, a front cover, a vibrating diaphragm, a voice coil, and a magnetic circuit element. The front cover, the vibrating diaphragm, and the vibrating piece are sequentially installed in the base frame from top to bottom. The voice coil is adhered below the vibrating diaphragm, and the magnetic circuit element is suspended in the inner diameter of the vibrating piece.

9. The loudspeaker according to claim 8, wherein: The magnetic circuit element includes a washer, a magnet, and a magnetic conductive plate that are sequentially installed from top to bottom. The magnetic conductive plate is in a U - cup shape and is nested and suspended in the inner diameter of the vibration.

10. The loudspeaker according to claim 8, characterized in that: A detachable rear cover is provided at the bottom of the base frame.

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