Thin multi-magnet type vibration reduction loudspeaker

Abstract

The invention provides a thin multi-magnetic vibration reduction loudspeaker. The thin multi-magnetic vibration reduction loudspeaker comprises a loudspeaker base, a magnetic loop assembly, a first elastic piece and a vibration assembly, therefore, the thin type multi-magnetic vibration reduction loudspeaker can provide more magnetic energy so as to improve the volume of the thin type multi-magnetic vibration reduction loudspeaker in operation, and can reduce the vibration of the loudspeaker seat so as to reduce resonance and improve the stability of the thin type multi-magnetic vibration reduction loudspeaker in operation.

Description

Technical Field

[0001] The present invention provides a thin multi-magnetic vibration-damping loudspeaker, particularly a loudspeaker that can provide more magnetic energy to increase the volume of the thin multi-magnetic vibration-damping loudspeaker during operation, and can reduce the vibration of the speaker seat to reduce resonance and improve the stability of the thin multi-magnetic vibration-damping loudspeaker during operation. Background Art

[0002] As for the current general speakers, their magnetic return components are usually single-magnetic structures. Since the magnetic energy provided by the single-magnetic structure is limited, it cannot increase the volume of the speaker during operation; and if the speaker uses a long and thin speaker seat, it is more likely that the speaker cannot output sound stably.

[0003] Therefore, how to invent a thin multi-magnetic vibration-damping speaker so as to provide more magnetic energy to increase the volume of the thin multi-magnetic vibration-damping speaker during operation, and to reduce the vibration of the speaker seat to reduce resonance and improve the stability of the thin multi-magnetic vibration-damping speaker during operation will be the active disclosure of the present invention. Summary of the invention

[0004] In view of the above-mentioned defects of the prior art, the inventor felt that it was not perfect, so he exhausted his mind to carefully study and overcome it, and then developed a thin multi-magnetic vibration-damping speaker, in order to achieve the goal of using the magnetic return component to provide more magnetic energy to increase the volume of the thin multi-magnetic vibration-damping speaker during operation, and using the first elastic member to reduce the vibration of the speaker seat to reduce resonance and improve the stability of the thin multi-magnetic vibration-damping speaker during operation.

[0005] To achieve the above and other purposes, the present invention provides a thin multi-magnetic vibration-damping loudspeaker, which includes: a speaker seat, a magnetic return component, two first elastic members and a vibration component. The magnetic return assembly includes a magnetic conductive plate, a main magnetic conductive unit, at least a first secondary magnetic conductive unit and at least a second secondary magnetic conductive unit, the main magnetic conductive unit is arranged on the magnetic conductive plate, the first secondary magnetic conductive unit is arranged on the magnetic conductive plate and is spaced apart on one side of the main magnetic conductive unit, the second secondary magnetic conductive unit is arranged on the magnetic conductive plate and is spaced apart on the other side of the main magnetic conductive unit, a first recessed portion corresponding to the speaker seat is provided on one side of the top of the first secondary magnetic conductive unit, a first spacing is provided between the first recessed portion and the speaker seat, a second recessed portion corresponding to the speaker seat is provided on one side of the top of the second secondary magnetic conductive unit, a second spacing is provided between the second recessed portion and the speaker seat; each first elastic member is connected between the speaker seat and the magnetic return assembly; the vibration assembly includes a diaphragm and a voice coil, the diaphragm is arranged on the speaker seat, and the voice coil is movably arranged on the magnetic return assembly and connected to the diaphragm.

[0006] In the above-mentioned thin multi-magnetic vibration-damping loudspeaker, the speaker seat includes a speaker seat bracket and a metal bracket, the speaker seat bracket partially covers the metal bracket, the side of the top of the first secondary magnetic conductive unit is provided with the first recessed portion corresponding to the metal bracket, and the first recessed portion and the metal bracket have the first distance, and the side of the top of the second secondary magnetic conductive unit is provided with the second recessed portion corresponding to the metal bracket, and the second recessed portion and the metal bracket have the second distance.

[0007] In the above-mentioned thin multi-magnetic vibration-damping loudspeaker, the material of the metal bracket is austenitic stainless steel.

[0008] In the above-mentioned thin multi-magnet vibration-damping loudspeaker, the metal bracket has two short sides or two long sides, the cross section of each short side is L-shaped, and the cross section of each long side is L-shaped.

[0009] In the above-mentioned thin multi-magnetic vibration-damping loudspeaker, the metal bracket has two short sides and two long sides, and a first welding portion is respectively provided at both ends of each long side to be adjacent to each short side. The speaker seat bracket is injection molded to partially cover the metal bracket, and each first welding portion is exposed from the speaker seat bracket, and each first elastic member is respectively welded to each first welding portion.

[0010] In the above-mentioned thin multi-magnet vibration-damping loudspeaker, a first connecting groove is respectively disposed on both sides of the magnetic conductive plate, and one side of each first elastic member is disposed in each first connecting groove.

[0011] In the above-mentioned thin multi-magnet vibration-damping loudspeaker, the two sides of the main magnetic unit correspond to the first connecting grooves respectively, and one side of each first elastic member is sandwiched between each first connecting groove and the main magnetic unit.

[0012] In the above-mentioned thin multi-magnetic vibration-damping loudspeaker, the main magnetic unit is provided with a main magnet and a main magnetic plate stacked on each other, the main magnet is attached to the magnetic conductive plate, the number of the first secondary magnetic conductive unit is one, the first secondary magnetic conductive unit is provided with a first secondary magnet and a first secondary magnetic conductive plate stacked on each other, the first secondary magnet is attached to the magnetic conductive plate, the first recessed portion is provided on one side of the top of the first secondary magnetic conductive plate, the number of the second secondary magnetic conductive unit is one, the second secondary magnetic conductive unit is provided with a second secondary magnet and a second secondary magnetic conductive plate stacked on each other, the second secondary magnet is attached to the magnetic conductive plate, the second recessed portion is provided on one side of the top of the second secondary magnetic conductive plate, so as to form a three-magnet type magnetic return component.

[0013] In the above-mentioned thin multi-magnet vibration damping loudspeaker, the main magnetic unit is provided with a main magnet and a main magnetic plate stacked on each other, the main magnet is attached to the magnetic plate, the number of the first secondary magnetic units is two and they are arranged at intervals, each first secondary magnetic unit is provided with a first secondary magnet and a first secondary magnetic plate stacked on each other, each first secondary magnet is attached to the magnetic plate, the first recessed portion is provided on one side of the top of each first secondary magnetic plate, the number of the second secondary magnetic units is two and they are arranged at intervals, each second secondary magnetic unit is provided with a second secondary magnet and a second secondary magnetic plate stacked on each other, each second secondary magnet is attached to the magnetic plate, the second recessed portion is provided on one side of the top of each second secondary magnetic plate, so as to form a five-magnet type magnetic return component.

[0014] In the above-mentioned thin multi-magnetic vibration-damping loudspeaker, the first spacing is greater than 0.2 mm, and the second spacing is greater than 0.2 mm.

[0015] In the above-mentioned thin multi-magnetic vibration-damping loudspeaker, each first elastic member includes two first outer fixing parts, a first inner fixing part and two first elastic parts, each first elastic part is arranged between each first outer fixing part and the first inner fixing part, each first outer fixing part is connected to the metal bracket, and the first inner fixing part is arranged on the magnetic conductive plate.

[0016] In the above-mentioned thin multi-magnetic vibration-damping loudspeaker, the first inner fixing portion is sandwiched between the magnetic conductive plate and the main magnetic unit.

[0017] In the above-mentioned thin multi-magnet vibration-damping loudspeaker, each first outer fixing portion is provided with at least one first through hole, and each first outer fixing portion is welded to the metal bracket via the first through hole.

[0018] In the above-mentioned thin multi-magnetic vibration-damping loudspeaker, the metal bracket has two short sides and two long sides, and a first welding portion is respectively provided at both ends of each long side to be adjacent to each short side, and a second welding portion is respectively provided between the two ends of each long side. The speaker seat bracket is injection molded to partially cover the metal bracket, and each first welding portion and each second welding portion are exposed from the speaker seat bracket, and each first elastic member is respectively welded to each first welding portion.

[0019] In the above-mentioned thin multi-magnet vibration-damping loudspeaker, a second connecting groove is provided between the two sides of the magnetic conductive plate, a second elastic member is provided in the second connecting groove, and the two sides of the second elastic member are respectively welded to the second welding parts.

[0020] In the above-mentioned thin multi-magnetic vibration-damping loudspeaker, the second elastic member includes two second outer fixing portions, a second inner fixing portion and two second elastic portions, each second elastic portion is arranged between each second outer fixing portion and the second inner fixing portion, a third assembly groove is arranged between the second inner fixing portion and each second elastic portion, the third assembly groove is arranged in the second assembly groove, and each second outer fixing portion extends out of the magnetic conductive plate to be respectively welded to each second welding portion.

[0021] In the above-mentioned thin multi-magnet vibration-damping loudspeaker, each second elastic portion is covered with a buffer portion.

[0022] In the above-mentioned thin multi-magnet vibration-damping loudspeaker, each second outer fixing portion is provided with at least one second through hole, and each second outer fixing portion is welded to each second welding portion via the second through hole.

[0023] Thereby, the thin multi-magnetic vibration damping speaker of the present invention can utilize the magnetic return component to provide more magnetic energy to increase the volume of the thin multi-magnetic vibration damping speaker during operation, and can form a buffer between the speaker seat and the magnetic return component through the first elastic member, thereby reducing the resonance of the speaker seat when the thin multi-magnetic vibration damping speaker is in operation, thereby improving the stability of the thin multi-magnetic vibration damping speaker during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The first preferred embodiment of the present invention is shown in FIG. Figure 1 .

[0025] Figure 2 The first preferred embodiment of the present invention is shown in FIG. Figure 2 .

[0026] Figure 3 The first preferred embodiment of the present invention is shown in FIG. Figure 1 .

[0027] Figure 4 The first preferred embodiment of the present invention is shown in FIG. Figure 2 .

[0028] Figure 5 The first preferred embodiment of the present invention is shown in FIG. Figure 3 .

[0029] Figure 6 A cross-sectional view of a first preferred embodiment of the present invention Figure 1 .

[0030] Figure 7 A cross-sectional view of a first preferred embodiment of the present invention Figure 2 .

[0031] Figure 8A schematic diagram of a second preferred embodiment of the present invention Figure 1 .

[0032] Fig. 9 A schematic diagram of a second preferred embodiment of the present invention Figure 2 .

[0033] Fig.10 A schematic diagram of a second preferred embodiment of the present invention Figure 3 .

[0034] Fig.11 It is a bottom schematic diagram of a second preferred embodiment of the present invention.

[0035] Fig.12 It is a cross-sectional schematic diagram of a second preferred embodiment of the present invention.

[0036] Reference numerals

[0037] 1 Thin multi-magnetic vibration-damping speaker

[0038] 11 Speaker seat

[0039] 111 Speaker bracket

[0040] 112 Metal bracket

[0041] 1121 Short side

[0042] 1122 Long side

[0043] 1123 First welding section

[0044] 1124 Second welding section

[0045] 12 Magnetic return assembly

[0046] 121 Magnetic plate

[0047] 1211 The first set of slots

[0048] 122 Main magnetic unit

[0049] 1221 Main magnet

[0050] 1222 Leading Magnetic Plate

[0051] 123 The first secondary magnetic unit

[0052] 1231 The First Magnet

[0053] 1232 The first magnetic plate

[0054] 124 Second secondary magnetic conductive unit

[0055] 1241 Second Magnet

[0056] 1242 Second magnetic plate

[0057] 125 first recessed portion

[0058] 126 second recessed portion

[0059] 127 Second set of slots

[0060] 13 first elastic member

[0061] 131 first outer fixing portion

[0062] 132 first inner fixing portion

[0063] 133 first elastic part

[0064] 134 First through hole

[0065] 14 Vibration Components

[0066] 141 Diaphragm

[0067] 142 Voice Coil

[0068] 15 second elastic member

[0069] 151 Second outer fixing portion

[0070] 152 Second inner fixing portion

[0071] 153 second elastic portion

[0072] 154 Buffer

[0073] 155 Second through hole

[0074] 156 The third set of slots

[0075] S1 First spacing

[0076] S2 Second spacing DETAILED DESCRIPTION

[0077] In order to fully understand the purpose, features and effects of the present invention, the present invention is described in detail through the following specific embodiments and the accompanying drawings, as follows:

[0078] Please refer to Figures 1 to 7 As shown in the figure, the present invention provides a thin multi-magnetic vibration-damping loudspeaker 1 (for example, a long thin loudspeaker), which includes: a speaker seat 11, a magnetic return component 12, two first elastic members 13 and a vibration component 14.

[0079] The speaker seat 11 may include a speaker seat bracket 111 and a metal bracket 112. The speaker seat bracket 111 and the metal bracket 112 may be frame-shaped, and the speaker seat bracket 111 may partially cover the metal bracket 112. The metal bracket 112 may be made of weakly magnetic or non-magnetic stainless steel or other metals. The stainless steel may be austenitic stainless steel of the 3XX series (e.g., 301, 302, 304, etc.) or 2XX series (e.g., 201, 204, etc.). The speaker seat bracket 111 may be partially covered by injection molding outside the metal bracket 112. In this way, the speaker seat 11 may utilize the combination of the speaker seat bracket 111 and the metal bracket 112 to strengthen the overall strength of the speaker seat 11, so as to improve the resonance problem of the thin multi-magnet vibration-damping speaker 1, especially the rectangular speaker with a high aspect ratio.

[0080] The magnetic return assembly 12 includes a magnetic plate 121, a main magnetic unit 122, at least one first secondary magnetic unit 123 and at least one second secondary magnetic unit 124. The main magnetic unit 122 is disposed on the top of the magnetic plate 121, the first secondary magnetic unit 123 is disposed on the top of the magnetic plate 121 and is spaced apart from one side of the main magnetic unit 122, and the second secondary magnetic unit 124 is disposed on the top of the magnetic plate 121 and is spaced apart from the other side of the main magnetic unit 122, so that a magnetic gap is formed between the main magnetic unit 122 and the first secondary magnetic unit 123 and the second secondary magnetic unit 124. A first recessed portion 125 corresponding to the speaker seat 11 (or the metal bracket 112) is provided on the top of the first secondary magnetic conductive unit 123 at a side away from the magnetic gap, and a first distance S1 is provided between the first recessed portion 125 and the speaker seat 11 (or the metal bracket 112). A second recessed portion 126 corresponding to the speaker seat 11 (or the metal bracket 112) is provided on the top of the second secondary magnetic conductive unit 124 at a side away from the magnetic gap, and a second distance S2 is provided between the second recessed portion 126 and the speaker seat 11 (or the metal bracket 112). Thus, when the speaker seat 11 does not have the metal bracket 112, the first recessed portion 125 and the second recessed portion 126 can maintain the first distance S1 and the second distance S2 without damaging the magnetic force of the magnetic return component 12 and without increasing the height of the speaker, so as to prevent the speaker seat 11 and the magnetic return component 12 from colliding when the speaker is actuated. In addition, when the speaker seat 11 has the metal bracket 112, especially the weakly magnetic metal bracket 112, the first recessed portion 125 and the second recessed portion 126 can prevent the first secondary magnetic unit 123 and the second secondary magnetic unit 124 from generating an attractive force on the metal bracket 112 that is greater than the yield strength of the speaker seat 11 when the speaker is not in operation, causing the metal bracket 112 to bend and deform in the direction of the first secondary magnetic unit 123 and the second secondary magnetic unit 124, causing the metal bracket 112 to detach from the speaker seat 11, thereby rendering the shock absorbing function of the speaker ineffective and causing problems such as abnormal sound distortion. Among them, the main magnetic unit 122 can be provided with a main magnet 1221 and a main magnetic plate 1222 stacked on each other, and the main magnet 1221 is attached to the top of the magnetic plate 121. The first secondary magnetic unit 123 is provided with a first secondary magnet 1231 and a first secondary magnetic plate 1232 stacked on each other, and the first secondary magnet 1231 is attached to the top of the magnetic plate 121. The first recessed portion 125 can be provided on the side of the top of the first secondary magnetic plate 1232 away from the magnetic gap. The second secondary magnetic unit 124 is provided with a second secondary magnet 1241 and a second secondary magnetic plate 1242 stacked on each other, and the second secondary magnet 1241 is attached to the top of the magnetic plate 121. The second recessed portion 126 can be provided on the side of the top of the second secondary magnetic plate 1242 away from the magnetic gap.The number of the first secondary magnetic conductive unit 123 and the second secondary magnetic conductive unit 124 can be one to form a three-magnetic magnetic return assembly 12, and the first secondary magnetic conductive unit 123 and the second secondary magnetic conductive unit 124 can be respectively disposed in the center of the two long sides of the magnetic conductive plate 121. Alternatively, the number of the first secondary magnetic conductive unit 123 and the second secondary magnetic conductive unit 124 can be two and spaced apart to form a five-magnetic magnetic return assembly 12, the first recessed portion 125 can be disposed on the side of the top of each first secondary magnetic conductive plate 1232 away from the magnetic gap, and the second recessed portion 126 can be disposed on the side of the top of each second secondary magnetic conductive plate 1242 away from the magnetic gap. The present invention takes the five-magnetic magnetic return assembly 12 as an embodiment. Thus, the magnetic return assembly 12 can provide more magnetic energy by utilizing the cooperation of the main magnetic unit 122 , each first secondary magnetic unit 123 and each second secondary magnetic unit 124 to increase the volume of the thin multi-magnetic vibration reduction speaker 1 during operation.

[0081] Each first elastic member 13 is connected between the speaker seat 11 and the magnetic return assembly 12, so that the magnetic return assembly 12 is not in direct contact with the speaker seat 11. Thus, each first elastic member 13 can form a buffer between the speaker seat 11 and the magnetic return assembly 12, and reduce the vibration of the speaker seat 11 when the thin multi-magnetic vibration-damping speaker 1 is in operation, so as to improve the stability of the thin multi-magnetic vibration-damping speaker 1 when in operation.

[0082] The vibration assembly 14 includes a diaphragm 141 and a voice coil 142. The diaphragm 141 is attached to the top of the speaker seat 11 and corresponds to the position of the magnetic return assembly 12. The voice coil 142 is movably disposed in the magnetic gap of the magnetic return assembly 12 and attached to the bottom of the diaphragm 141. The diaphragm 141 and the voice coil 142 can be slightly rectangular.

[0083] When the thin multi-magnetic vibration-damping speaker 1 is used, it can be combined with a sound box (not shown). After the voice coil 142 receives the external electronic signal, the main magnetic unit 122, the first auxiliary magnetic unit 123 and the second auxiliary magnetic unit 124 cooperate to provide more magnetic energy, so that the voice coil 142 cooperates with the electromagnetic effect of the magnetic return component 12 to drive the diaphragm 141 to move, thereby increasing the volume of the thin multi-magnetic vibration-damping speaker 1 during operation.

[0084] In addition, when the thin multi-magnetic vibration-damping speaker 1 performs the above-mentioned operation, due to the arrangement of each first elastic member 13, the magnetic return component 12 is suspended in the speaker seat 11, so each first elastic member 13 can be used to form a buffer between the speaker seat 11 and the magnetic return component 12. Furthermore, when the voice coil 142 pushes the diaphragm 141 to vibrate, it will drive the speaker seat 11 to vibrate. Since the reaction force of the voice coil 142 during the operation is applied to the magnetic return component 12, and the magnetic return component 12 is suspended by each first elastic member 13, the magnetic return component 12 will generate kinetic energy with a frequency close to that of the speaker seat 11 but with an opposite phase to offset the vibration of the speaker seat 11 to achieve the purpose of vibration reduction, thereby improving the stability of the thin multi-magnetic vibration-damping speaker 1 during operation.

[0085] In addition to the above embodiments, in one embodiment of the present invention, the two short sides of the metal bracket 112 may each be provided with a short side portion 1121, or the two long sides of the metal bracket 112 may each be provided with a long side portion 1122, and the cross-section of each short side portion 1121 may each be L-shaped, and the cross-section of each long side portion 1122 may each be L-shaped. In addition, the metal bracket 112 may also be provided with two short sides 1121 and two long sides 1122 at the same time. Furthermore, a first welding portion 1123 may be provided at both ends of each long side portion 1122 to be adjacent to each short side portion 1121, and each first welding portion 1123 may be U-shaped. The speaker seat bracket 111 may be partially injection molded to cover each short side portion 1121 and each long side portion 1122 of the metal bracket 112, and each first welding portion 1123 may be exposed at the bottom of the speaker seat bracket 111, and each first elastic member 13 may be welded to each first welding portion 1123. Thereby, the metal bracket 112 can utilize the short sides 1121 and the long sides 1122 to form a structure similar to an angle steel, so as to strengthen the support of the metal bracket 112 to the speaker seat bracket 111, and the setting of each first welding portion 1123 can be utilized so that each first elastic member 13 can be welded to each first welding portion 1123 by welding (laser spot welding), so that each first elastic member 13 and the metal bracket 112 can be more firmly combined, and the magnetic return component 12 and the speaker seat 11 are not in direct contact, so that each first elastic member 13 can form a buffer between the speaker seat 11 and the magnetic return component 12, and reduce the vibration of the speaker seat 11 when the thin multi-magnetic vibration-damping speaker 1 is in operation, so as to improve the stability of the thin multi-magnetic vibration-damping speaker 1 during operation.

[0086] In addition to the above embodiments, in one embodiment of the present invention, the two short sides of the magnetic conductive plate 121 may be respectively provided with a first connecting groove 1211, the two short sides of the bottom of the main magnet 1221 of the main magnetic unit 122 may respectively correspond to the first connecting grooves 1211, and one side of each first elastic member 13 may be respectively provided at each first connecting groove 1211. In addition, the two short sides of the bottom of the main magnet 1221 of the main magnetic unit 122 may respectively abut against the side of each first elastic member 13, so that each first elastic member 13 may be respectively sandwiched between each first connecting groove 1211 and the two short sides of the bottom of the main magnet 1221. In this way, each first elastic member 13 may avoid being separated from the magnetic return assembly 12 when it is actuated; in addition, because the two short sides of the main magnet 1221 extend and cover each first elastic member 13, the size of the main magnet 1221 is designed to be longer, so that the magnetic force of the main magnet 1221 is relatively increased, and a larger output volume can be provided.

[0087] In addition to the above embodiments, in one embodiment of the present invention, the first spacing S1 and the second spacing S2 can be respectively greater than 0.2 mm. Thus, the top of the first secondary magnetic conductive plate 1232 of the first secondary magnetic conductive unit 123, which is away from the magnetic gap, can be punched and thinned to form the first recessed portion 125, and the top of the second secondary magnetic conductive plate 1242 of the second secondary magnetic conductive unit 124, which is away from the magnetic gap, can be punched and thinned to form the second recessed portion 126, so that the first recessed portion 125 and the second recessed portion 126 can be descending surfaces corresponding to the bottom of the metal bracket 112, so as to ensure that the first spacing S1 and the second spacing S2 can be respectively greater than 0.2 mm, so as to utilize the first spacing S1 and the second spacing S2 to prevent the metal bracket 112 from being continuously attracted by the magnetic force of the magnetic return component 12, causing the speaker seat 11 to be deformed by force. In addition, the thin multi-magnetic vibration-damping speaker 1 of the present invention can form the first spacing S1 and the second spacing S2 by thinning the outer sides of the first secondary magnetic conductive plate 1232 and the second secondary magnetic conductive plate 1242 through the first recessed portion 125 and the second recessed portion 126 without increasing the height of the speaker, instead of thinning the entire first secondary magnetic conductive plate 1232 and the second secondary magnetic conductive plate 1242 to cause the magnetic conductivity to deteriorate. Therefore, the thin multi-magnetic vibration-damping speaker 1 of the present invention can be used without losing magnetic force or increasing the height of the speaker.

[0088] In addition to the above embodiments, in one embodiment of the present invention, each first elastic member 13 may include two first outer fixing portions 131, a first inner fixing portion 132 and two first elastic portions 133, each first elastic portion 133 may be disposed between each first outer fixing portion 131 and the first inner fixing portion 132, each first outer fixing portion 131 may be connected to the bottom of each first welding portion 1123 of the metal bracket 112, and each first inner fixing portion 132 may be disposed at the first assembly groove 1211 at the two short sides of the magnetic conductive plate 121. In addition, each first inner fixing portion 132 may be sandwiched between the first assembly groove 1211 at the two short sides of the magnetic conductive plate 121 and the two short sides of the bottom of the main magnet 1221 of the main magnetic unit 122. Thereby, each first elastic member 13 can be more firmly combined with the metal bracket 112, and the magnetic return component 12 is not in direct contact with the speaker seat 11, so that each first elastic member 13 forms a buffer between the speaker seat 11 and the magnetic return component 12, and reduces the vibration of the speaker seat 11 when the thin multi-magnetic vibration-damping speaker 1 is in operation, so as to improve the stability of the thin multi-magnetic vibration-damping speaker 1 during operation.

[0089] In addition to the above embodiments, in one embodiment of the present invention, each first outer fixing portion 131 may be provided with at least one first through hole 134, and each first outer fixing portion 131 may be welded to the bottom of each first welding portion 1123 of the metal bracket 112 by the first through hole 134. Thus, each first elastic member 13 may be welded to each first welding portion 1123 by welding (laser spot welding) through the first through hole 134 of each first outer fixing portion 131, thereby allowing each first elastic member 13 to be more firmly combined with the metal bracket 112, and allowing the magnetic return component 12 to not directly contact the speaker seat 11, so that each first elastic member 13 can form a buffer between the speaker seat 11 and the magnetic return component 12, and reduce the vibration of the speaker seat 11 when the thin multi-magnetic vibration damping speaker 1 is in operation, so as to improve the stability of the thin multi-magnetic vibration damping speaker 1 during operation.

[0090] Please refer to Figures 8 to 12As shown in the figure, in addition to the above-mentioned embodiment, in one embodiment of the present invention, a second welding portion 1124 may be respectively provided between the two ends of each long side portion 1122, and each second welding portion 1124 may be U-shaped. The speaker seat bracket 111 may be partially covered by injection molding on each short side portion 1121 and each long side portion 1122 of the metal bracket 112, and each first welding portion 1123 and each second welding portion 1124 may be exposed at the bottom of the speaker seat bracket 111. In addition, a second assembly groove 127 may be provided between the two short sides of the magnetic conductive plate 121, and the second assembly groove 127 may be provided with a second elastic member 15, and the second elastic member 15 may be a stainless steel spring sheet, and the two sides of each first elastic member 13 may be respectively welded to each first welding portion 1123, and the two sides of the second elastic member 15 may be respectively welded to each second welding portion 1124. Thus, the thin multi-magnetic vibration-damping loudspeaker 1 of the present invention can not only use the first elastic members 13 to form a buffer between the speaker seat 11 and the magnetic return assembly 12, but also use the second elastic member 15 to increase the support for the magnetic return assembly 12, so as to suppress the unstable vibration of the magnetic return assembly 12 and absorb the excess vibration kinetic energy of the magnetic return assembly 12. In addition, when the voice coil 142 pushes the diaphragm 141 to vibrate, it will drive the speaker seat 11 to vibrate. Since the reaction force of the voice coil 142 when it is actuated will be applied to the magnetic return assembly 12, and the magnetic return assembly 12 is suspended by the first elastic members 13 and the second elastic member 15, the magnetic return assembly 12 will generate kinetic energy with a frequency close to that of the speaker seat 11 but with an opposite phase to offset the vibration of the speaker seat 11 to achieve the purpose of vibration reduction, thereby improving the stability of the thin multi-magnetic vibration-damping loudspeaker 1 during operation.

[0091] In addition to the above embodiments, in one embodiment of the present invention, the second elastic member 15 may include two second outer fixing portions 151, a second inner fixing portion 152 and two second elastic portions 153, each second elastic portion 153 is disposed between each second outer fixing portion 151 and the second inner fixing portion 152, a third assembly groove 156 may be disposed between the second inner fixing portion 152 and each second elastic portion 153, the third assembly groove 156 may be disposed in the second assembly groove 127, each second outer fixing portion 151 may extend out of the magnetic conductive plate 121 and be welded to each second welding portion 1124. Each second elastic portion 153 may be coated with a buffer portion 154 by silicone injection molding. Thus, the thin multi-magnetic vibration-damping speaker 1 of the present invention can utilize each second elastic portion 153 to absorb the excess vibration kinetic energy of the magnetic return assembly 12, thereby increasing the vibration stability of the magnetic return assembly 12, and after the second elastic member 15 is disposed in the second assembly groove 127 with the third assembly groove 156, the second inner fixing portion 152 can abut against the magnetic conductive plate 121 without exceeding the top of the magnetic conductive plate 121, so as to fit the main magnet 1221. In addition, after each buffer portion 154 covers each second elastic portion 153, the top of each buffer portion 154 can be flush with the top of the magnetic conductive plate 121, and the bottom of each buffer portion 154 does not exceed the bottom of the magnetic conductive plate 121, so that the gap between each buffer portion 154 and the magnetic conductive plate 121 is extremely small, thereby reducing the sound transmission area of ​​the speaker, thereby avoiding affecting the sound quality performance of the speaker.

[0092] In addition to the above embodiments, in one embodiment of the present invention, each second outer fixing portion 151 may be provided with at least one second through hole 155, and each second outer fixing portion 151 may be welded to each second welding portion 1124 by the second through hole 155. Thus, the second elastic member 15 may weld each second outer fixing portion 151 to each second welding portion 1124 by welding (laser spot welding) through the second through hole 155 of each second outer fixing portion 151, so that the second elastic member 15 can cooperate with each first elastic member 13 and the metal bracket 112 to be more firmly combined, and the magnetic return component 12 and the speaker seat 11 are not in direct contact, so that each first elastic member 13 and the second elastic member 15 can form a buffer between the speaker seat 11 and the magnetic return component 12, and reduce the vibration of the speaker seat 11 when the thin multi-magnetic vibration damping speaker 1 is in operation, so as to improve the stability of the thin multi-magnetic vibration damping speaker 1 when it is in operation.

[0093] The present invention has been disclosed in the above with preferred embodiments, but those skilled in the art should understand that the embodiments are only used to describe the present invention and should not be interpreted as limiting the scope of the present invention. It should be noted that all changes and substitutions equivalent to the embodiments should be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be based on the scope of the patent application.

Claims

1. A thin multi-magnetic vibration-damping loudspeaker, characterized in that: Include: A speaker stand; A magnetic return assembly, comprising a magnetic conductive plate, a main magnetic conductive unit, at least a first secondary magnetic conductive unit and at least a second secondary magnetic conductive unit, wherein the main magnetic conductive unit is arranged on the magnetic conductive plate, the first secondary magnetic conductive unit is arranged on the magnetic conductive plate and is spaced apart from one side of the main magnetic conductive unit, the second secondary magnetic conductive unit is arranged on the magnetic conductive plate and is spaced apart from the other side of the main magnetic conductive unit, a first recessed portion corresponding to the speaker seat is arranged on one side of the top of the first secondary magnetic conductive unit, a first spacing is formed between the first recessed portion and the speaker seat, a second recessed portion corresponding to the speaker seat is arranged on one side of the top of the second secondary magnetic conductive unit, a second spacing is formed between the second recessed portion and the speaker seat; Two first elastic members, each of which is connected between the speaker seat and the magnetic return assembly; and A vibration component includes a diaphragm and a voice coil. The diaphragm is arranged on the speaker seat, and the voice coil is movably arranged on the magnetic return component and connected to the diaphragm.

2. The thin multi-magnetic vibration-damping loudspeaker according to claim 1, characterized in that: The speaker seat includes a speaker seat bracket and a metal bracket, the speaker seat bracket partially covers the metal bracket, the side of the top of the first secondary magnetic conductive unit is provided with a first recessed portion corresponding to the metal bracket, and the first recessed portion and the metal bracket have the first distance, the side of the top of the second secondary magnetic conductive unit is provided with a second recessed portion corresponding to the metal bracket, and the second recessed portion and the metal bracket have the second distance.

3. The thin multi-magnetic vibration-damping loudspeaker according to claim 2, characterized in that: The metal bracket is made of austenitic stainless steel.

4. The thin multi-magnetic vibration-damping loudspeaker according to claim 2, characterized in that: The metal bracket has two short sides or two long sides, the cross section of each short side is L-shaped, and the cross section of each long side is L-shaped.

5. The thin multi-magnetic vibration-damping loudspeaker according to claim 2, characterized in that: The metal bracket has two short sides and two long sides, and a first welding portion is respectively provided at both ends of each long side to be adjacent to each short side. The speaker seat bracket is injection molded to partially cover the metal bracket, each first welding portion is exposed from the speaker seat bracket, and each first elastic member is respectively welded to each first welding portion.

6. The thin multi-magnetic vibration-damping loudspeaker according to claim 1, characterized in that: The two sides of the magnetic conductive plate are respectively provided with a first connecting groove, and one side of each first elastic member is arranged in each first connecting groove.

7. The thin multi-magnetic vibration-damping loudspeaker according to claim 6, characterized in that: The two sides of the main magnetic unit correspond to the first connecting grooves respectively, and one side of each first elastic member is sandwiched between the first connecting grooves and the main magnetic unit.

8. The thin multi-magnetic vibration-damping loudspeaker according to claim 1, characterized in that: The main magnetic unit is provided with a main magnet and a main magnetic plate stacked on each other, and the main magnet is attached to the magnetic conductive plate. The number of the first secondary magnetic conductive unit is one, and the first secondary magnetic conductive unit is provided with a first secondary magnet and a first secondary magnetic conductive plate stacked on each other, and the first secondary magnet is attached to the magnetic conductive plate, and the first recessed portion is arranged on one side of the top of the first secondary magnetic conductive plate. The number of the second secondary magnetic conductive unit is one, and the second secondary magnetic conductive unit is provided with a second secondary magnet and a second secondary magnetic conductive plate stacked on each other, and the second secondary magnet is attached to the magnetic conductive plate, and the second recessed portion is arranged on one side of the top of the second secondary magnetic conductive plate to form a three-magnet type magnetic return component.

9. The thin multi-magnetic vibration-damping loudspeaker according to claim 1, characterized in that: The main magnetic unit is provided with a main magnet and a main magnetic plate stacked on each other, and the main magnet is attached to the magnetic conductive plate. The number of the first secondary magnetic conductive units is two and they are arranged at intervals. Each first secondary magnetic conductive unit is provided with a first secondary magnet and a first secondary magnetic conductive plate stacked on each other, and each first secondary magnet is attached to the magnetic conductive plate. The first recessed portion is provided on one side of the top of each first secondary magnetic conductive plate. The number of the second secondary magnetic conductive units is two and they are arranged at intervals. Each second secondary magnetic conductive unit is provided with a second secondary magnet and a second secondary magnetic conductive plate stacked on each other, and each second secondary magnet is attached to the magnetic conductive plate. The second recessed portion is provided on one side of the top of each second secondary magnetic conductive plate to form a five-magnet type magnetic return component.

10. The thin multi-magnetic vibration-damping loudspeaker according to claim 1, characterized in that: The first spacing is greater than 0.2 mm, and the second spacing is greater than 0.2 mm.

11. The thin multi-magnetic vibration-damping loudspeaker according to claim 2, characterized in that: Each first elastic member includes two first outer fixing parts, a first inner fixing part and two first elastic parts. Each first elastic part is arranged between each first outer fixing part and the first inner fixing part. Each first outer fixing part is connected to the metal bracket, and the first inner fixing part is arranged on the magnetic conductive plate.

12. The thin multi-magnetic vibration-damping loudspeaker according to claim 11, characterized in that: The first inner fixing portion is sandwiched between the magnetic conductive plate and the main magnetic unit.

13. The thin multi-magnetic vibration-damping loudspeaker according to claim 11, characterized in that: Each first outer fixing portion is provided with at least one first through hole, and each first outer fixing portion is welded to the metal bracket via the first through hole.

14. The thin multi-magnetic vibration-damping loudspeaker according to claim 2, characterized in that: The metal bracket has two short sides and two long sides, and a first welding portion is respectively provided at both ends of each long side to be adjacent to each short side, and a second welding portion is respectively provided between the two ends of each long side. The speaker seat bracket is injection molded to partially cover the metal bracket, and each first welding portion and each second welding portion are exposed from the speaker seat bracket, and each first elastic member is respectively welded to each first welding portion.

15. The thin multi-magnetic vibration-damping loudspeaker according to claim 14, characterized in that: A second assembly slot is provided between the two sides of the magnetic conductive plate. A second elastic member is provided in the second assembly slot. The two sides of the second elastic member are respectively welded to the second welding portions.

16. The thin multi-magnetic vibration-damping loudspeaker according to claim 15, characterized in that: The second elastic member includes two second outer fixing portions, a second inner fixing portion and two second elastic portions, each second elastic portion is arranged between each second outer fixing portion and the second inner fixing portion, a third assembly groove is arranged between the second inner fixing portion and each second elastic portion, the third assembly groove is arranged in the second assembly groove, and each second outer fixing portion extends out of the magnetic conductive plate to be respectively welded to each second welding portion.

17. The thin multi-magnetic vibration-damping loudspeaker according to claim 16, characterized in that: Each second elastic portion is covered with a buffer portion.

18. The thin multi-magnetic vibration-damping loudspeaker according to claim 16, characterized in that: Each second outer fixing portion is provided with at least one second through hole, and each second outer fixing portion is welded to each second welding portion via the second through hole.

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