Vibration-damping loudspeakers

Abstract

A vibration-damping loudspeaker includes a sound-generating unit, a magnetic return assembly, a fixing member, and an elastic member. The sound-generating unit includes a speaker mount, a diaphragm, and a voice coil; the magnetic return assembly includes a main magnetic plate and a magnetic guiding unit, with the magnetic guiding unit disposed on the main magnetic plate and the voice coil movably disposed outside the magnetic guiding unit; the fixing member is disposed on two short sides of the main magnetic plate; the elastic member is disposed on the two short sides of the speaker mount and the left and right sides of the fixing member, and the elastic member is directly abutted and connected to the short sides of the speaker mount and the fixing member. Therefore, the vibration-damping loudspeaker of this invention allows for quick and easy assembly of the elastic member between the sound-generating unit and the magnetic return assembly, improving manufacturing yield. Furthermore, the elastic member forms a buffer between the sound-generating unit and the magnetic return assembly, achieving vibration damping and isolation effects during loudspeaker operation to prevent discomfort for users when using electronic devices.

Description

[Technical Field]

[0001] The present invention provides a vibration-damping speaker, particularly a vibration-damping speaker that can achieve quick and easy assembly to improve manufacturing yield, and achieves vibration reduction and isolation effects when the speaker is in operation, so as to avoid discomfort for users when using electronic devices. [Previous Technology]

[0002] In general, the magnetic return assembly of a loudspeaker is usually a single magnetic structure, and the magnetic return assembly is fixedly assembled to the speaker mount. Since there is no buffer design between the speaker mount and the magnetic return assembly, the vibration of the loudspeaker is directly transmitted to the housing of the electronic device on which the loudspeaker is installed when the loudspeaker is operating, causing discomfort to the user when using the electronic device.

[0003] Therefore, how to invent a vibration-damping loudspeaker in order to achieve quick and easy assembly of the sound-generating unit and magnetic return assembly to improve the manufacturing yield, and to achieve the effect of vibration reduction and isolation when the loudspeaker is operating, so as to avoid discomfort for users when using electronic devices, is what this invention aims to actively disclose. [Summary of the Invention]

[0004] In view of the shortcomings of the above-mentioned prior art, the inventor felt that it was not perfect, so he devoted his mind to research and overcoming it, and developed a vibration-damping speaker, in order to enable the elastic element to be quickly and easily assembled between the sound unit and the magnetic return assembly, thereby improving the manufacturing yield. The elastic element forms a buffer between the sound unit and the magnetic return assembly, thereby achieving the effect of vibration reduction and isolation when the vibration-damping speaker is operating, so as to avoid discomfort for users when using electronic devices.

[0005] To achieve the above and other objectives, the present invention provides a vibration-damping loudspeaker, comprising: a sound-generating unit, a magnetic return assembly, two fixing members, and four elastic members. The sound-generating unit includes a speaker mount, a diaphragm, and a voice coil. The diaphragm is disposed on the speaker mount, and the voice coil is connected to the diaphragm. The magnetic return assembly includes a main magnetic plate and a magnetic guiding unit. The magnetic guiding unit is disposed on the top surface of the main magnetic plate, and the voice coil is movably disposed outside the magnetic guiding unit. The fixing members are respectively disposed on two short sides of the main magnetic plate. The elastic members are respectively disposed between the two short sides of the speaker mount and the left and right sides of each fixing member. Two of the elastic members are directly abutted and connected to one short side of the speaker mount and one of the fixing members, and the other two elastic members are directly abutted and connected to the other short side of the speaker mount and the other fixing member.

[0006] In the above-mentioned shock-absorbing loudspeaker, each of the two inner edges of the short side of the speaker base is provided with a set of connecting parts, and each of the elastic members is provided with a first fitting part on one side, and the first fitting part is fitted into the set of connecting parts.

[0007] In the above-mentioned shock-absorbing loudspeaker, each of the fixing members has a docking portion on its left and right sides, and each of the elastic members has a second fitting portion on its other side, the second fitting portion fitting into the docking portion.

[0008] In the above-mentioned shock-absorbing loudspeaker, a vent hole is provided on each of the two short sides of the loudspeaker base.

[0009] In the above-mentioned vibration-damping loudspeaker, one side of each of the fixing members is provided with a mounting portion, and the two short sides of the main magnetic plate are respectively provided with an extension section, and each extension section is provided in the respective mounting portion.

[0010] In the above-mentioned shock-absorbing loudspeaker, each of the extension sections is provided with a positioning hole, and each of the fixing members is provided with a positioning protrusion on one side, and each positioning hole is connected to each positioning protrusion.

[0011] In the above-mentioned shock-absorbing loudspeaker, a connecting section is provided between two of the elastic elements, and each connecting section is directly connected to each of the fixing elements and each of the short sides of the speaker base.

[0012] In the above-mentioned shock-absorbing loudspeaker, the speaker base, the fixing members and the elastic members are integrally injection molded together.

[0013] Accordingly, the vibration-damping speaker of the present invention allows the elastic element to be quickly and easily assembled between the sound-generating unit and the magnetic return assembly, thereby improving the manufacturing yield. The elastic element forms a buffer between the sound-generating unit and the magnetic return assembly, thereby achieving the effect of vibration reduction and isolation when the vibration-damping speaker is in operation, so as to avoid discomfort for users when using electronic devices.

Implementation Method

[0015] To fully understand the purpose, features, and effects of the present invention, the present invention will be described in detail below with reference to the following specific embodiments and accompanying drawings:

[0016] Please refer to Figures 1 to 7. As shown in the figures, the first embodiment of the present invention provides a vibration-damping loudspeaker 1, which includes: a sound-generating unit 11, a magnetic return assembly 12, two fixing members 13, and four elastic members 14. The sound-generating unit 11 and the magnetic return assembly 12 may be rectangular or square.

[0017] The sound-generating unit 11 includes a speaker base 111, a diaphragm 112 and a voice coil 113. The speaker base 111 may be a rectangular frame. The diaphragm 112 is located on the top of the speaker base 111 and the voice coil 113 is connected to the bottom of the diaphragm 112.

[0018] The magnetic return assembly 12 includes a main magnetic plate 121 and a magnetic guiding unit 122. The cross-section of the main magnetic plate 121 may be U-shaped. The magnetic guiding unit 122 is disposed on the top surface of the bottom of the main magnetic plate 121. The voice coil 113 is movably disposed outside the magnetic guiding unit 122 and between the main magnetic plate 121 and the magnetic guiding unit 122. The magnetic guiding unit 122 may be provided with a magnet 1221 and a magnetic guiding plate 1222 stacked on top of each other.

[0019] The fasteners 13 may be trapezoidal and respectively disposed on two short sides of the main magnetic plate 121, and the material of the fasteners 13 may be plastic.

[0020] The elastic members 14 are respectively disposed between the two short sides of the bottom of the speaker base 111 and the left and right sides of each of the fixing members 13. Two of the elastic members 14 are directly connected to one short side of the bottom of the speaker base 111 and one of the fixing members 13. The other two elastic members 14 are directly connected to the other short side of the speaker base 111 and the other fixing member 13. In this way, the fixing members 13 and the elastic members 14 can form a simple vibration damping and isolation structure for the magnetic return assembly 12 at the bottom of the speaker base 111. In addition, no components need to pass through between the elastic members 14, the short side of the bottom of the speaker base 111, and the fixing member 13 on one short side of the bottom of the speaker base 111, and the other short side of the bottom of the speaker base 111 is the same. Therefore, the vibration damping and isolation structure of the present invention has a simpler structure compared to the prior art. In the prior art, to increase the strength of the elastic structure, it is necessary to deliberately insert elastic iron parts through the elastic structure to improve the supporting force of the elastic structure on the magnetic return assembly. Since the two elastic parts 14, the short side of the bottom of the horn seat 111, and the fixing member 13 of the present invention are directly connected by abutment, the structural strength and the supporting force on the magnetic return assembly 12 can be improved without any inserting components between the two elastic parts 14, the short side of the bottom of the horn seat 111, and the fixing member 13. Furthermore, in one embodiment of the present invention, the elastic parts 14 are symmetrically arranged on the two short sides of the bottom of the horn seat 111 and symmetrically arranged on the left and right sides of each fixing member 13, and the material of the elastic parts 14 can be silicone.

[0021] When the vibration-damping speaker 1 of the present invention is assembled, the fixing members 13 and the elastic members 14 can be symmetrically arranged on the two short sides of the bottom of the speaker base 111. The left and right sides of each elastic member 14 are respectively connected to the bottom of the speaker base 111 and the left and right sides of each fixing member 13. Then, the fixing members 13 are respectively connected to the two short sides of the main magnetic plate 121, so that the sound-generating unit 11 and the magnetic return assembly 12 are not easily misaligned, thereby enabling the sound-generating unit 11 and the magnetic return assembly 12 to be quickly and easily assembled to improve the manufacturing yield. When the vibration-damping loudspeaker 1 of the present invention is used, it can be combined with a speaker (not shown). After the voice coil 113 of the sound-generating unit 11 receives the externally input electronic signal, the magnetic energy is provided by the cooperation of the main magnetic plate 121 of the magnetic return assembly 12 and the magnetic guiding unit 122. The voice coil 113, in conjunction with the electromagnetic effect of the magnetic return assembly 12, drives the diaphragm 112 to move, thereby making the vibration-damping loudspeaker 1 produce sound.

[0022] When the vibration-damping speaker 1 of the present invention operates as described above, due to the arrangement of the fixing members 13 and the elastic members 14, the speaker base 111 of the sound-generating unit 11 and the magnetic return assembly 12 are not in direct contact. Therefore, the mutual cooperation of the fixing members 13 and the elastic members 14 can be used as a buffer between the speaker base 111 and the magnetic return assembly 12 to absorb (consume) the kinetic energy generated when the sound-generating unit 11 vibrates and to prevent the kinetic energy generated when the magnetic return assembly 12 vibrates from being transmitted back. Thus, the vibration-damping and vibration-isolation effects are achieved when the vibration-damping speaker 1 operates, thereby avoiding discomfort for the user when using electronic devices. In addition, by using the fixing members 13 and the elastic members 14 as a buffer between the speaker base 111 and the magnetic return assembly 12, the vibration frequency of the magnetic return assembly 12 can be similar to but opposite in phase with the vibration frequency of the speaker base 111, thus further achieving the vibration-damping effect.

[0023] Furthermore, since the fixing members 13 and the elastic members 14 do not need to cover the speaker base 111 and the main magnetic plate 121, and the fixing members 13 and the elastic members 14 can be selected as plastic and silicone materials respectively as needed, the bottom of the fixing members 13 and the elastic members 14 can be flat, and the elastic coefficient can be easily adjusted so that the vibration frequency of the magnetic return assembly 12 is similar to but opposite in phase with the vibration frequency of the speaker base 111, and interference with the operation of the voice coil 113 is avoided. Moreover, since the bottom surface of the main magnetic plate 121 does not need to be filled with silicone to increase the clamping force on the main magnetic plate 121, the height of the vibration-damping speaker 1 of the present invention can be further reduced. Although the reduction in height is very small, for such ultra-thin speakers with a height of less than 4 mm, even a reduction of 0.1 mm can bring significant benefits.

[0024] In addition to the above embodiments, in one embodiment of the present invention, a connecting portion 114 may be provided on the left inner edge and right inner edge of each of the short sides of the bottom of the speaker base 111, and a first fitting portion 141 may be provided on one side of each elastic member 14, the first fitting portion 141 being fitted into the connecting portion 114. In addition, a mating portion 131 may be provided on the left and right sides of each fixing member 13, and a second fitting portion 142 may be provided on the other side of each elastic member 14, the second fitting portion 142 being fitted into the mating portion 131. Therefore, the vibration-damping speaker 1 of the present invention can effectively increase the bonding strength of the fixing members 13, the elastic members 14 and the speaker base 111 by utilizing the cooperation of the connecting parts 114 with the first connecting parts 141, the mating parts 131 and the second connecting parts 142, thereby making the three less likely to separate, and achieving the effect of quick and easy assembly to improve the manufacturing yield.

[0025] In addition to the above embodiments, in one embodiment of the present invention, the speaker base 111, the fixing members 13, and the elastic members 14 can be integrally injection molded. Each of the elastic members 14 integrates the fixing members 13 with the speaker base 111, but the fixing members 13 are not directly connected to the speaker base 111. Therefore, after the fixing members 13 are assembled with the main magnetic plate 121 of the magnetic return assembly 12, the magnetic return assembly 12 can be suspended on the speaker base 111 through the provision of the elastic members 14, and further, the elastic members 14 generate the effects of shock absorption and vibration isolation.

[0026] In addition to the above embodiments, in one embodiment of the present invention, a vent hole 115 may be provided between the two short sides of the bottom of the speaker base 111 and the fixing members 13. In an embodiment of the present invention, the two short sides of the bottom of the magnetic return assembly 12 may be symmetrically fixed to the four corners of the bottom of the speaker base 111 (visually in the shape of an I) by four elastic members 14, so that the magnetic return assembly 12 and the two short sides of the bottom of the speaker base 111 respectively form a vent hole 115, thereby increasing the air permeability of the damping speaker 1, which helps the damping speaker 1 to expel internal gas when it is in operation, thereby improving the bass sound quality and reducing distortion.

[0027] In addition to the above embodiments, in one embodiment of the present invention, one side of each of the fixing members 13 may be provided with a setting portion 132 (e.g., a groove), and two short sides of the main magnetic plate 121 may be provided with an extension section 123, each extension section 123 being disposed at each setting portion 132. Thus, the vibration-damping speaker 1 of the present invention can expand the contact area by designing that each extension section 123 and each setting portion 132 have the same outline, allowing each extension section 123 and each setting portion 132 to adhere and bond together, thereby achieving the effect of fast assembly speed.

[0028] Please refer to Figures 8 to 13. As shown, in addition to the above embodiments, in the second embodiment of the present invention, each of the extension sections 123 may be provided with a positioning hole 124, and each of the fixing members 13 may be provided with a positioning protrusion 133 on one side. Each positioning hole 124 is connected to each positioning protrusion 133. In this way, the vibration-damping speaker 1 of the present invention can effectively increase the bonding strength between the fixing members 13 and the main magnetic plate 121, making them less likely to separate, thereby achieving the effect of quick and easy assembly to improve manufacturing yield.

[0029] Please refer to Figures 14 to 17. As shown, in addition to the above embodiments, in one embodiment of the present invention, a connecting section 143 may be provided between two of the elastic members 14. Each connecting section 143 is directly abutted and connected between the fixing member 13 and the bottom short side of the speaker base 111. In this way, the vibration-damping speaker 1 of the present invention can increase the area of ​​each elastic member 14 and enhance the supporting force of each elastic member 14 on the magnetic return assembly 12. Furthermore, by providing each connecting section 143 in a filling manner between each fixing member 13 and the speaker base 111, the overall vibration damping and isolation effect can be improved simultaneously through the increase in the area of ​​each elastic member 14. Additionally, in an embodiment of the present invention, the vent holes 115 may be located on the wall of the two short sides of the speaker base 111.

[0030] Please refer to Figure 18. As shown, in one embodiment of the present invention, in addition to the above embodiments, the cross-section of the elastic member 14 can be "I" shaped, or other equivalent shapes, such as "+" shaped (that is, the two sides of the elastic member 14 can be inserted into the speaker seat 111 and the fixing member 13). This design helps to strengthen the connection strength between the elastic member 14, the speaker seat 111, and the fixing member 13, so as to avoid the risk of the elastic member 14 falling off when the speaker seat 111 or the magnetic return assembly 12 is displaced too much due to vertical vibration. In addition, please refer to Figures 11 and 17. As shown, in one embodiment of the present invention, in addition to the above embodiments, the setting direction of the elastic member 14 can be parallel to the direction of the tapering of the extension section 123. On the one hand, this maximizes the area of ​​the extension section 123 to avoid sacrificing magnetic force, and on the other hand, it can also avoid the risk of the elastic member 14 falling off due to excessive horizontal displacement between the speaker seat 111 and the magnetic return assembly 12 during vibration. Furthermore, since both the speaker seat 111 and the fixing member 13 can be injection molded from plastic, the present invention can also provide through holes on the speaker seat 111 and / or the fixing member 13 so that silicone can be injected into the through holes during injection to strengthen the bonding strength between the elastic member 14 and the speaker seat 111 and the fixing member 13.

[0031] The present invention 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 the present invention and should not be construed as limiting the scope of the present invention. It should be noted that all variations and substitutions equivalent to these embodiments should be included within the scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the claims. [Simplified Explanation of the Diagram]

[0014] [Figure 1] is a perspective view of the vibration-damping loudspeaker according to the first embodiment of the present invention. [Figure 2] is an exploded view of the vibration-damping loudspeaker according to the first embodiment of the present invention. [Figure 3] is an exploded view of the vibration-damping loudspeaker according to the first embodiment of the present invention. [Figure 4] is an enlarged view of part A in Figure 1. [Figure 5] is an enlarged view of part B in Figure 2. [Figure 6] is a cross-sectional view of the vibration-damping loudspeaker according to the first embodiment of the present invention. [Figure 7] is a cross-sectional view of the vibration-damping loudspeaker according to the first embodiment of the present invention. [Figure 8] is a perspective view of the vibration-damping loudspeaker according to the second embodiment of the present invention. [Figure 9] is an exploded view of the vibration-damping loudspeaker according to the second embodiment of the present invention. [Figure 10] is an exploded view of the vibration-damping loudspeaker according to the second embodiment of the present invention. [Figure 11] is an enlarged view of part C in Figure 8. [Figure 12] is an enlarged view of part D in Figure 9. [Figure 13] is a cross-sectional view of the vibration-damping loudspeaker according to the second embodiment of the present invention. [Figure 14] is a top view of the vibration-damping loudspeaker according to the third embodiment of the present invention. [Figure 15] is an exploded view of the third embodiment of the vibration-damping loudspeaker of the present invention. [Figure 16] is an exploded view of the third embodiment of the vibration-damping loudspeaker of the present invention. [Figure 17] is a partially enlarged view of the third embodiment of the vibration-damping loudspeaker of the present invention. [Figure 18] is a cross-sectional view of Figures 11 and 17.

Claims

1. A vibration-damping loudspeaker, comprising: a sound-generating unit including a speaker mount, a diaphragm, and a voice coil, the diaphragm being disposed on the speaker mount and the voice coil being connected to the diaphragm; a magnetic return assembly including a main magnetic plate and a magnetic guiding unit, the magnetic guiding unit being disposed on the top surface of the main magnetic plate and the voice coil being movably disposed outside the magnetic guiding unit, the vibration frequency of the magnetic return assembly being similar to but opposite in phase to the vibration frequency of the speaker mount; two fixing members respectively disposed on two short sides of the main magnetic plate; and four elastic members respectively disposed on two short sides of the speaker mount and on the left and right sides of each of the fixing members, two of the elastic members being directly abutted and connected to one short side of the speaker mount and one of the fixing members, and the other two elastic members being directly abutted and connected to the other short side of the speaker mount and the other fixing member; Each of the fixing components has a mounting portion on one side, and each of the two short sides of the main magnetic plate has an extension section, with each extension section located at the mounting portion.

2. The damping loudspeaker as described in claim 1, wherein each of the two inner edges of the short side of the speaker mount is provided with a set of joints, and each of the elastic members is provided with a first fitting portion on one side, the first fitting portion fitting into the set of joints.

3. The damping loudspeaker as described in claim 1 or 2, wherein each of the fixing members has a mating portion on its left and right sides, and each of the elastic members has a second engaging portion on its other side, the second engaging portion engaging with the mating portion.

4. The vibration-damping loudspeaker as described in claim 1, wherein a vent hole is provided on each of the two short sides of the loudspeaker mount.

5. The damping loudspeaker as claimed in claim 1, wherein each of the extensions is provided with a positioning hole, and each of the fixing members is provided with a positioning protrusion on one side, and each positioning hole is assembled to each positioning protrusion.

6. The damped loudspeaker as claimed in claim 1, wherein a connecting section is provided between two of the elastic members, and each connecting section is directly abutting and connected between each of the fixing members and each of the short sides of the speaker mount.

7. The damped loudspeaker as claimed in claim 1, wherein the speaker mount, the fixing members, and the elastic members are integrally injection molded together.

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