Damping loudspeaker

Abstract

The utility model provides a damping loudspeaker. The damping loudspeaker comprises a thin and long loudspeaker seat, a vibrating diaphragm, a voice coil, a magnetic loop assembly and a metal elastic sheet. The vibrating diaphragm is arranged on the thin and long loudspeaker seat; the voice coil comprises a coil, a framework and a brocade silk thread; the magnetic loop assembly comprises a magnetic conductive seat and a magnetic conductive unit, and the voice coil is movably arranged outside the magnetic conductive unit; the metal elastic sheet is connected with the thin and long horn seat and the magnetic loop assembly, the metal elastic sheet comprises a central part, positioning parts and elastic arms, the central part is arranged on the magnetic conductive seat, the positioning parts are arranged on the two sides of the thin and long horn seat, the elastic arms are arranged between the central part and the positioning parts, and the positioning parts and the elastic arms are symmetrically arranged on the two sides of the central part. Therefore, according to the shock-absorbing loudspeaker, the bearing power can be increased by using the metal elastic sheet, so that a better shock-absorbing effect can be achieved, and the problems of distortion such as skew and polarization during high-power output of the vibrating diaphragm and the voice coil can be avoided.

Description

Technical Field

[0001] This invention provides a vibration-damping loudspeaker, particularly a loudspeaker that can increase power handling capacity and achieve better vibration damping effect, so as to avoid skewing, polarization and distortion of the diaphragm and voice coil when outputting high power. Background Technology

[0002] For most thin and long loudspeakers, because the voice coil is in direct contact with the diaphragm and the voice coil is relatively high, when the loudspeaker is outputting high power, the diaphragm and voice coil often suffer from distortion problems such as skewness and polarization.

[0003] Therefore, the purpose of this invention is to discover how to invent a vibration-damping loudspeaker that can increase the power it can withstand and achieve better vibration damping, so as to avoid distortion problems such as skewing and polarization of the diaphragm and voice coil when outputting high power. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the inventor felt that it was not perfect, so he devoted his mind to research and overcoming it, and developed a vibration-damping loudspeaker in order to increase the power it can withstand and achieve better vibration damping effect, so as to avoid the distortion problems such as skewing and polarization of the diaphragm and voice coil when the power is output at high power.

[0005] To achieve the above and other objectives, this utility model provides a vibration-damping loudspeaker, which includes: a thin, elongated speaker mount, a diaphragm, a voice coil, a magnetic return assembly, and a metal spring. The thin, elongated speaker mount has at least one auxiliary positioning post on each side; the diaphragm is disposed on the thin, elongated speaker mount; the voice coil includes a coil, a frame, and two nylon wires, the coil is wound around the frame, each of the nylon wires is electrically connected to the coil, and the frame is connected to the diaphragm; the magnetic return assembly includes a magnetic base and a magnetic unit, the magnetic unit is disposed on the magnetic base, and the voice coil is movably disposed outside the magnetic unit; a metal spring connects the thin, elongated speaker mount and the magnetic return assembly, the metal spring includes a central portion, two positioning portions, and multiple elastic arms, the central portion is disposed on the magnetic base, each positioning portion has at least one auxiliary positioning notch, each auxiliary positioning post is disposed on each auxiliary positioning notch, each elastic arm is disposed between the central portion and each positioning portion, and each positioning portion and each elastic arm are symmetrically disposed on both sides of the central portion.

[0006] In one embodiment of the present invention, an assembly part is provided on each side of the thin and elongated horn seat, and each positioning part is respectively provided on each assembly part.

[0007] In one embodiment of this utility model, the metal spring is made of stainless steel, beryllium copper alloy, or carbon steel.

[0008] In one embodiment of the present invention, the central part is a hollow ring, and the central part is located at the bottom of the magnetic base.

[0009] In one embodiment of the present invention, the central part is annular or solid, and the metal spring is integrally formed or consists of two symmetrical bodies connected to each other.

[0010] In one embodiment of the present invention, each of the elastic arms is provided with a curved portion, each curved portion is S-shaped, one end of each elastic arm is connected to the central portion, and the other end of each elastic arm is connected to the positioning portion.

[0011] In one embodiment of the present invention, the angle between the connection point of each elastic arm and the center portion and the horizontal axis of the rectangular coordinate system is 40 degrees to 60 degrees.

[0012] In one embodiment of the present invention, at least one positioning post is provided on each side of the thin and elongated horn seat, and each positioning part is provided with at least one positioning hole, with each positioning post located in each positioning hole.

[0013] In one embodiment of the present invention, each of the positioning posts is a hot-melt post to cover each of the positioning holes.

[0014] In one embodiment of the present invention, a positioning baffle is provided on each side of the thin and elongated horn seat, and each positioning part is provided with a positioning notch. The positioning baffle is located at the positioning notch and is a hot-melt baffle to cover the positioning notch.

[0015] In one embodiment of the present invention, a metal sheet is injection molded on each side of the thin, elongated speaker base, and each positioning part is laser-spot welded to the metal sheet.

[0016] In one embodiment of this utility model, the material of each metal sheet is the same as the material of each positioning part.

[0017] Therefore, the vibration-damping loudspeaker of this invention can increase the power it can withstand by using metal springs, thereby achieving a better vibration damping effect and avoiding distortion problems such as skewing and polarization of the diaphragm and voice coil when outputting high power. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the appearance of the first embodiment of the present utility model. Figure 1 .

[0019] Figure 2 This is a schematic diagram of the appearance of the first embodiment of the present utility model. Figure 2 .

[0020] Figure 3 This is an exploded view of the first embodiment of the present invention. Figure 1 .

[0021] Figure 4 This is an exploded view of the first embodiment of the present invention. Figure 2 .

[0022] Figure 5 This is a bottom view of the first embodiment of the present invention.

[0023] Figure 6 This is a cross-sectional schematic diagram of the first embodiment of the present invention.

[0024] Figure 7 This is an exploded view of the second embodiment of the present invention.

[0025] Figure 8 This is a schematic diagram of the appearance of the second embodiment of the present utility model.

[0026] Figure 9 This is a partially enlarged schematic diagram of the second embodiment of the present invention.

[0027] Figure 10 This is an exploded view of the third embodiment of the present invention.

[0028] Figure 11 This is a schematic diagram of the appearance of the third embodiment of the present utility model.

[0029] Figure Labels

[0030] 1. Vibration-damping speaker

[0031] 11. Thin and long horn base

[0032] 111 Conductive solder pad

[0033] 112 Assembly Department

[0034] 1122 Positioning Post

[0035] 1123 Auxiliary positioning column

[0036] 1124 Positioning retaining wall

[0037] 113 Metal sheet

[0038] 12 Diaphragms

[0039] 13 Voice coil

[0040] 131 coil

[0041] 132 skeleton

[0042] 133 Brocade Thread

[0043] 14 Magnetic Return Assembly

[0044] 141 Magnetic base

[0045] 142 Magnetic plate

[0046] 143 Magnets

[0047] 144 magnetic conductive units

[0048] 15 metal shrapnel

[0049] 151 Central Department

[0050] 152 Positioning Department

[0051] 153 Flexible Arm

[0052] 1531 Bend

[0053] 154 positioning holes

[0054] 155 Auxiliary Positioning Notch

[0055] 156 Positioning Gap Detailed Implementation

[0056] To fully understand the purpose, features, and effects of this utility model, the following specific embodiments, in conjunction with the accompanying drawings, will provide a detailed description of this utility model:

[0057] Please refer to Figures 1 to 6 As shown in the figure, this utility model provides a vibration-damping loudspeaker 1, which can be a thin and long loudspeaker and includes: a thin and long speaker base 11, a diaphragm 12, a voice coil 13, a magnetic return assembly 14 and a metal spring 15. The voice coil 13 and the magnetic return assembly 14 can be circular or racetrack shaped.

[0058] The thin and long horn base 11 has at least one auxiliary positioning post 1123 on each of its two bottom sides.

[0059] The diaphragm 12 is located on top of the thin, elongated speaker mount 11.

[0060] The voice coil 13 is located inside the thin, elongated speaker mount 11 and connected to the bottom of the diaphragm 12. The voice coil 13 includes a coil 131, a frame 132, and two nylon wires 133. The coil 131 is wound around the frame 132. Each nylon wire 133 is electrically connected to the coil 131 and a conductive solder piece 111 at the bottom of the thin, elongated speaker mount 11. The top of the frame 132 is connected to the bottom of the diaphragm 12. Because each nylon wire 133 has strength and toughness, the vibration-damping loudspeaker 1 can be prevented from breaking due to excessive amplitude under high power.

[0061] The magnetic return assembly 14 is located inside the thin, elongated speaker base 11. The magnetic return assembly 14 includes a magnetic base 141 and a magnetic unit 144. The magnetic unit 144 is disposed on the magnetic base 141 and may have a magnetic plate 142 and a magnet 143. The magnet 143 is disposed on the magnetic base 141, and the magnetic plate 142 is disposed on the magnet 143. The magnetic base 141 may be a U-shaped iron. The voice coil 13 is movably disposed outside the magnetic unit 144 and located between the magnetic unit 144 and the magnetic base 141. Alternatively, the wall surrounding the magnetic base 141 can be replaced with an assembled auxiliary magnetic unit, so that the magnetic base 141 forms a dual-magnetic structure.

[0062] The metal spring 15 connects the thin and long horn base 11 and the magnetic return assembly 14. The metal spring 15 includes a central part 151, two positioning parts 152 and a plurality of elastic arms 153. The central part 151 is located on the magnetic base 141. Each positioning part 152 is provided with at least one auxiliary positioning notch 155. Each auxiliary positioning post 1123 is located on each auxiliary positioning notch 155 so as to position each positioning part 152 on the bottom sides of the thin and long horn base 11. Each of the elastic arms 153 is respectively disposed between the central part 151 and each of the positioning parts 152. Each of the positioning parts 152 and each of the elastic arms 153 are symmetrically disposed on both sides of the central part 151 so that the magnetic return assembly 14 does not directly contact the thin and long horn seat 11. The number of each elastic arm 153 can be four (but the number is not limited to four), and the metal spring 15 can be made of stainless steel, beryllium copper alloy or carbon steel, with stainless steel being the preferred material.

[0063] When the vibration-damping speaker 1 is used, it can be combined with a speaker box (not shown). After the voice coil 13 receives the external electronic signals input by the conductive solder pads 111 through the filaments 133 of the voice coil 13, the magnetic force provided by the magnetic base 141, the magnetic plate 142 and the magnet 143 of the magnetic return assembly 14 causes the electromagnetic effect of the voice coil 13 to work in conjunction with the magnetic return assembly 14 to drive the diaphragm 12 to move, thereby increasing the volume of the vibration-damping speaker 1 when it is operating.

[0064] When the vibration-damping speaker 1 operates as described above, the elastic arms 153 provided on the metal spring 15 prevent the thin, elongated speaker base 11 from directly contacting the magnetic return assembly 14. Therefore, each elastic arm 153 acts as a buffer between the thin, elongated speaker base 11 and the magnetic return assembly 14, allowing the vibration frequency of the magnetic return assembly 14 to be similar to but out of phase with the vibration frequency of the thin, elongated speaker base 11. This reduces the vibration of the thin, elongated speaker base 11 during operation, improving the stability of the vibration-damping speaker 1 and achieving a better vibration damping effect. Furthermore, the metal spring 15 acts as a buffer between the thin, elongated speaker base 11 and the magnetic return assembly 14, preventing the kinetic energy generated by the vibration of the magnetic return assembly 14 from being transmitted back, thus achieving vibration damping and isolation effects during the operation of the vibration-damping speaker 1 and preventing discomfort for the user when using electronic devices.

[0065] In addition to the above embodiments, in one embodiment of the present invention, an assembly portion 112 may be provided on each of the two bottom sides of the thin and elongated speaker base 11, and each positioning portion 152 may be attached to the assembly portion 112 by means of adhesive. In this way, the shock-absorbing speaker 1 of the present invention can make each positioning portion 152 of the metal spring 15 firmly set in the assembly portion 112 of the thin and elongated speaker base 11, so as to increase the stability of each elastic arm 153 when acting as a buffer.

[0066] In addition to the above embodiments, in one embodiment of the present invention, the assembly portions 112 on both sides of the bottom of the thin and elongated speaker base 11 may each be provided with at least one auxiliary positioning post 1123, and each positioning portion 152 may each be provided with at least one auxiliary positioning notch 155. Each auxiliary positioning post 1123 may be provided at each auxiliary positioning notch 155, so as to position each positioning portion 152 at each assembly portion 112. In this way, adhesive may be applied between each positioning portion 152 and each assembly portion 112, and then the auxiliary positioning posts 1123 and the auxiliary positioning notches 155 may be used to position and engage each other, so as to attach the metal spring 15 to the bottom of the thin and elongated speaker base 11.

[0067] In addition to the above embodiments, in one embodiment of the present invention, the central portion 151 may be a hollow annular shape, and the central portion 151 may be located at the bottom of the magnetic base 141. Thus, the vibration-damping speaker 1 of the present invention, through the cooperation of the central portion 151 and each of the elastic arms 153, ensures that the thin, elongated speaker base 11 and the magnetic return assembly 14 are not in direct contact. Therefore, each of the elastic arms 153 can be used as a buffer between the thin, elongated speaker base 11 and the magnetic return assembly 14 to absorb (consume) the kinetic energy generated when the thin, elongated speaker base 11 vibrates, thereby reducing the vibration of the thin, elongated speaker base 11 during operation, improving the stability of the vibration-damping speaker 1 during operation, and thus achieving a better vibration damping effect. This avoids problems such as distortion and polarization of the diaphragm 12 and the voice coil 13 during high-power output.

[0068] In addition to the above embodiments, in one embodiment of this utility model, the central portion 151 may be a hollow annular shape or a solid circle, and the metal spring 15 may be integrally formed or consist of two interconnected symmetrical bodies. The central portion 151 of each symmetrical body may be two interconnected arc-shaped bodies or two interconnected semicircles. Since the weight of the metal spring 15 affects the vibration frequency, different types of central portions 151 can be selected according to the weight requirements in actual use to adjust the weight of the metal spring 15 and determine the appropriate vibration frequency.

[0069] In addition to the above embodiments, in one embodiment of this utility model, each of the elastic arms 153 is symmetrically disposed between the central portion 151 and each of the positioning portions 152, and the angle between the connection point of each elastic arm 153 and the central portion 151 and the horizontal axis of the rectangular coordinate system can be 40 degrees to 60 degrees. Thus, the vibration-damping speaker 1 of this utility model can provide each elastic arm 153 with a better buffering effect, and can achieve better balance during vibration, thereby producing the maximum vibration damping effect.

[0070] In addition to the above embodiments, in one embodiment of the present invention, each elastic arm 153 may be provided with a bent portion 1531, each bent portion 1531 may be S-shaped, and one end of each elastic arm 153 is connected to the outer periphery of the central portion 151, and the other end of each elastic arm 153 is connected to the end of each positioning portion 152. In this way, the vibration damping speaker 1 of the present invention can stably position each elastic arm 153 between the central portion 151 and each positioning portion 152. In addition, the longer the length of each elastic arm 153, the larger the curvature of each bent portion 1531, or the more bent portions 1531 there are, the more the displacement of the metal spring 15 can be increased. Therefore, the present invention can increase the stability of each elastic arm 153 as a buffer by adjusting the vibration frequency and amplitude (displacement) through the bent portion 1531 of each elastic arm 153.

[0071] In addition to the above embodiments, in one embodiment of the present invention, the assembly portions 112 on both sides of the bottom of the thin and elongated horn seat 11 may each be provided with at least one positioning post 1122, and each positioning portion 152 may each be provided with at least one positioning hole 154. Each positioning post 1122 may be disposed in each positioning hole 154, and each positioning portion 152 and each assembly portion 112 may be connected to each other by adhesive. In addition, each positioning post 1122 may be a heat-melted post so that after heat melting, each positioning post 1122 covers the periphery of each positioning hole 154. Furthermore, the assembly portions 112 on both sides of the bottom of the thin and elongated horn seat 11 may each be provided with at least one auxiliary positioning post 1123, and each positioning portion 152 may each be provided with at least one auxiliary positioning notch 155. Each auxiliary positioning post 1123 may be disposed in each auxiliary positioning notch 155 to facilitate positioning each positioning portion 152 in each assembly portion 112. In this way, each positioning part 152 and each assembly part 112 can be mutually positioned and engaged through each positioning post 1122 and each positioning hole 154, and mutually positioned and engaged through each auxiliary positioning post 1123 and each auxiliary positioning notch 155. When the hot melt equipment heats each positioning post 1122, each positioning post 1122 will melt and cover the periphery of each positioning hole 154 of the metal spring 15, so that the metal spring 15 is firmly engaged with the thin and long horn seat 11. In addition, each positioning part 152 and each assembly part 112 can also be pre-fixed to the thin and long horn seat 11 with glue, and finally the metal spring 15 is firmly engaged with the thin and long horn seat 11 by hot melt. Pre-applying adhesive can prevent gaps between the metal spring 15 and the thin, elongated speaker base 11 that would occur when relying solely on heat fusion, which would cause collision noises during operation and thus affect the damping effect. Furthermore, applying adhesive between each positioning part 152 and each assembly part 112 after heat fusion can achieve the same effect.

[0072] Please refer to Figures 7 to 9 As shown in the figure, in addition to the above embodiments, in one embodiment of this utility model, the assembly portions 112 on both sides of the bottom of the thin and elongated speaker base 11 can each be provided with a positioning baffle 1124, and each positioning portion 152 can each be provided with a positioning notch 156. The positioning baffle 1124 can be provided in the positioning notch 156, and each positioning portion 152 and each assembly portion 112 can be connected to each other by adhesive. In addition, the positioning baffle 1124 can be a hot-melt baffle that can be bent to quickly cover a large area of ​​the positioning notch 156 (e.g., Figure 7As shown), this allows the metal spring 15 to be securely bonded to the thin, elongated horn seat 11. Furthermore, each of the assembly portions 112 on both sides of the bottom of the thin, elongated horn seat 11 can be provided with at least one auxiliary positioning post 1123, and each positioning portion 152 can be provided with at least one auxiliary positioning notch 155. Each auxiliary positioning post 1123 can be located at each auxiliary positioning notch 155 to facilitate positioning each positioning portion 152 within each assembly portion 112. Thus, each positioning portion 152 and each assembly portion 112 can be initially positioned and bonded to each other by the positioning baffle 1124 and the positioning notch 156, and then positioned and bonded to each other by the auxiliary positioning posts 1123 and the auxiliary positioning notches 155. When the hot-melt equipment heats the positioning baffle 1124, the positioning baffle 1124 can be bent and quickly cover a large area of ​​the positioning notch 156, securing the metal spring 15 to the thin, elongated horn seat 11. Alternatively, the metal spring 15 can be pre-fixed to the thin, elongated speaker base 11 with adhesive before each positioning part 152 and each assembly part 112, and then the metal spring 15 and the thin, elongated speaker base 11 can be firmly bonded together by heat fusion. Pre-bonding with adhesive avoids the gap between the metal spring 15 and the thin, elongated speaker base 11 that occurs when relying solely on heat fusion, which would cause collision noise during operation and thus affect the damping effect. Furthermore, applying adhesive between each positioning part 152 and each assembly part 112 after heat fusion can achieve the same effect.

[0073] Please refer to Figure 10 and Figure 11 As shown in the figure, in addition to the above embodiments, in one embodiment of this utility model, the assembly portions 112 on both sides of the bottom of the thin and elongated speaker base 11 can be injection molded with a metal sheet 113 (e.g., a steel sheet), and each positioning portion 152 can be laser-spot welded to the metal sheet 113 to achieve a complete combination. Furthermore, each assembly portion 112 on both sides of the bottom of the thin and elongated speaker base 11 can be provided with at least one auxiliary positioning post 1123, and each positioning portion 152 can be provided with at least one auxiliary positioning notch 155. Each auxiliary positioning post 1123 can be located at each auxiliary positioning notch 155 to facilitate positioning each positioning portion 152 within each assembly portion 112. In this embodiment, laser spot welding is the optimal joining method; the high temperature allows the metal to melt and fuse completely and tightly together, thus eliminating the need for pre-applying glue for fixation. Additionally, laser spot welding can prevent the metal spring 15 from impacting the thin and elongated speaker base 11, thus avoiding abnormal noise and affecting the vibration damping effect. Furthermore, each positioning part 152 and each assembly part 112 can be positioned and engaged with each other by each auxiliary positioning post 1123 and each auxiliary positioning notch 155, so that the metal spring 15 can be laser-spot welded to each metal sheet 113. Furthermore, the material of each metal sheet 113 can be the same as the material of each positioning part 152 to improve the stability of the laser spot welding.

[0074] This utility model has been disclosed above with reference to preferred embodiments. However, those skilled in the art should understand that these embodiments are only used to describe this utility model and should not be construed as limiting the scope of this utility model. It should be noted that all variations and substitutions equivalent to these embodiments should be included within the scope of this utility model. Therefore, the protection scope of this utility model shall be determined by the claims.

Claims

1. A shock-absorbing loudspeaker, characterized in that, Include: A thin, elongated horn base, with at least one auxiliary positioning post on each of its two sides; A diaphragm is mounted on the thin, elongated speaker mount; A voice coil includes a coil, a frame and two nylon wires. The coil is wound around the frame and each of the nylon wires is electrically connected to the coil. The frame is connected to the diaphragm. A magnetic return assembly includes a magnetic base and a magnetic unit, the magnetic unit being disposed on the magnetic base, and the voice coil being movably disposed outside the magnetic unit; and A metal spring connects the thin, elongated horn base to the magnetic return assembly. The metal spring includes a central portion, two positioning portions, and multiple elastic arms. The central portion is located on the magnetic base. Each positioning portion is provided with at least one auxiliary positioning notch. Each auxiliary positioning post is located at each auxiliary positioning notch. Each elastic arm is located between the central portion and each positioning portion. Each positioning portion and each elastic arm are symmetrically located on both sides of the central portion.

2. The vibration-damping loudspeaker according to claim 1, characterized in that, The thin, elongated horn base has an assembly section on each side, and each positioning section is located in its respective assembly section.

3. The vibration-damping loudspeaker according to claim 1, characterized in that, The metal shrapnel can be made of stainless steel, beryllium copper alloy, or carbon steel.

4. The vibration-damping loudspeaker according to claim 1, characterized in that, The central part is a hollow ring, and the central part is located at the bottom of the magnetic base.

5. The vibration-damping loudspeaker according to claim 1, characterized in that, The central part is either ring-shaped or solid, and the metal spring is either integrally formed or consists of two symmetrical bodies connected to each other.

6. The vibration-damping loudspeaker according to claim 1, characterized in that, Each of the elastic arms is provided with a curved portion, each curved portion is S-shaped, one end of each elastic arm is connected to the central portion, and the other end of each elastic arm is connected to the positioning portion.

7. The vibration-damping loudspeaker according to claim 1, characterized in that, The angle between the connection point of each elastic arm and the center and the horizontal axis of the rectangular coordinate system is 40 to 60 degrees.

8. The vibration-damping loudspeaker according to claim 1, characterized in that, The thin, elongated horn base has at least one positioning post on each side, and each positioning part has at least one positioning hole, with each positioning post located in each positioning hole.

9. The vibration-damping loudspeaker according to claim 8, characterized in that, Each positioning post is a heat-fused post that covers each positioning hole.

10. The vibration-damping loudspeaker according to claim 1, characterized in that, The thin, elongated horn base has a positioning baffle on each side, and each positioning part has a positioning notch. The positioning baffle is located at the positioning notch and is a heat-fused baffle to cover the positioning notch.

11. The vibration-damping loudspeaker according to claim 1, characterized in that, A metal sheet is injection molded on each side of the thin, elongated speaker base, and each positioning part is laser-spot welded to the metal sheet.

12. The vibration-damping loudspeaker according to claim 11, characterized in that, The material of each metal sheet is the same as the material of each positioning part.

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