This non-provisional application claims priority under 35 U.S.C. ยง 119 (a) on Patent Application No(s). 202311013566.3 filed in China on Aug. 11, 2023, the entire contents of which are hereby incorporated by reference.
The present disclosure relates to a vibration-damping rectangular magnetic assembly, and in particular to a vibration-damping rectangular magnetic assembly fitted to a sound-generating unit to achieve vibration damping and vibration isolation in operation.
A conventional loudspeaker typically has a magnetic assembly fixedly fitted to a speaker base of the loudspeaker. There is not any design of a buffer between the speaker base and the magnetic assembly. As a result, the vibration of the loudspeaker in operation is directly transmitted to a casing of an electronic device on which the loudspeaker is mounted, causing discomfort to persons using the electronic device.
Therefore, it is imperative to provide a vibration-damping rectangular magnetic assembly that achieves vibration damping and vibration isolation in operation to spare users the discomfort they will otherwise experience for using electronic devices.
In view of the aforesaid drawbacks of the prior art, it is an objective of the disclosure to provide a vibration-damping rectangular magnetic assembly fitted to a sound-generating unit to form a loudspeaker, with a vibration-damping structure functioning as a buffer between the sound-generating unit and the rectangular magnetic assembly to achieve vibration damping and vibration isolation in operation to spare users the discomfort they will otherwise experience for using electronic devices.
To achieve the above and other objectives, the disclosure provides a vibration-damping rectangular magnetic assembly comprising a rectangular magnetic assembly and a vibration-damping structure. The rectangular magnetic assembly includes a main magnetic plate, a magnetic unit, a vibration-damping structure connecting portion and at least one vibration-damping groove. The magnetic unit is disposed at the top of the main magnetic plate. The vibration-damping structure connecting portion and the vibration-damping groove are disposed at the bottom of the main magnetic plate. The vibration-damping groove is disposed outside the vibration-damping structure connecting portion. The vibration-damping structure includes a ring-shaped speaker base butting portion, a magnetic assembly butting portion, a first resilient connecting module and a second resilient connecting module.
The magnetic assembly butting portion is disposed inside the ring-shaped speaker base butting portion. The first resilient connecting module and the second resilient connecting module are connected between two long sides and two short sides of the ring-shaped speaker base butting portion and between two long sides and two short sides of the magnetic assembly butting portion. The magnetic assembly butting portion is connected to the vibration-damping structure connecting portion. The first resilient connecting module and the second resilient connecting module are disposed at the vibration-damping groove.
In the vibration-damping rectangular magnetic assembly, the vibration-damping groove are in the number of two, the vibration-damping grooves are disposed on two short sides of the main magnetic plate respectively, the first resilient connecting module is disposed at one of the vibration-damping grooves, and the second resilient connecting module is disposed at the other vibration-damping groove.
In the vibration-damping rectangular magnetic assembly, the vibration-damping grooves are U-shaped each, and a portion of each of the vibration-damping grooves extends to the two long sides of the main magnetic plate.
In the vibration-damping rectangular magnetic assembly, the vibration-damping grooves are in the number of one, with the vibration-damping groove being ring-shaped and surrounding the vibration-damping structure connecting portion from outside, wherein the first resilient connecting module and the second resilient connecting module are disposed at the vibration-damping groove, with the first resilient connecting module disposed on a short side of the main magnetic plate and two long sides of the main magnetic plate, with the second resilient connecting module disposed on another short side of the main magnetic plate and the long sides of the main magnetic plate.
In the vibration-damping rectangular magnetic assembly, the ring-shaped speaker base butting portion includes a plurality of fitting portions coupled to a speaker base.
In the vibration-damping rectangular magnetic assembly, the first resilient connecting module includes at least one first short-side resilient arm, and the second resilient connecting module includes at least one second short-side resilient arm, the first and second short-side resilient arms being symmetrical to each other, or the first resilient connecting module includes at least one first long-side resilient arm, and the second resilient connecting module includes at least one second long-side resilient arm, the first and second long-side resilient arms being symmetrical to each other.
In the vibration-damping rectangular magnetic assembly, the first long-side resilient arms are in the number of two, the second long-side resilient arms are in the number of two, the first long-side resilient arms are adjacent to a short side of the magnetic assembly butting portion, and the second long-side resilient arms are adjacent to another short side of the magnetic assembly butting portion.
In the vibration-damping rectangular magnetic assembly, the first long-side resilient arms are in the number of two, the second long-side resilient arms are in the number of two, the first long-side resilient arms and the second long-side resilient arms are adjacent to the middle of the magnetic assembly butting portion.
In the vibration-damping rectangular magnetic assembly, the first short-side resilient arm is connected between a short side of the ring-shaped speaker base butting portion and a short side of the magnetic assembly butting portion, and the second short-side resilient arm is connected between another short side of the ring-shaped speaker base butting portion and another short side of the magnetic assembly butting portion.
In the vibration-damping rectangular magnetic assembly, the first long-side resilient arm is connected between a long side of the ring-shaped frame portion and a long side of the magnetic butting portion, and the second long-side resilient arm is connected between another long side of the ring-shaped frame portion and another long side of the magnetic butting portion.
In the vibration-damping rectangular magnetic assembly, the first short-side resilient arm are in the number of two, the second short-side resilient arm are in the number of two, each of the first short-side resilient arms is U-shaped and has a first short-side bend portion, the first short-side bend portions facing opposite directions, each of the second short-side resilient arms is U-shaped and has a second short-side bend portion, the second short-side bend portions facing opposite directions.
In the vibration-damping rectangular magnetic assembly, the first long-side resilient arms are in the number of two, the second long-side resilient arms are in the number of two, each of the first long-side resilient arms is U-shaped and has a first long-side bend portion, the first long-side bend portions facing the same direction, each of the second long-side resilient arms is U-shaped and has a second long-side bend portion, the second long-side bend portions facing the same direction.
In the vibration-damping rectangular magnetic assembly, each of the first long-side resilient arms is U-shaped and has a first long-side bend portion, a first side and a second side of each of the first long-side bend portions are parallel to a long side of the ring-shaped speaker base butting portion and a long side of the magnetic assembly butting portion respectively and are in a length ratio of from 1.6:1 to 2.4:1, each of the second long-side resilient arms is U-shaped and has a second long-side bend portion, a first side and a second side of each of the second long-side bend portions are parallel to the long side of the ring-shaped speaker base butting portion and the long side of the magnetic assembly butting portion respectively and are in a length ratio of from 1.6:1 to 2.4:1.
The vibration-damping rectangular magnetic assembly further comprises a plurality of damping units disposed between the ring-shaped speaker base butting portion and the main magnetic plate or between a fitting portion of the ring-shaped speaker base butting portion and a butting portion of a speaker base, the damping units being symmetrical to each other.
Therefore, the disclosure provides a vibration-damping rectangular magnetic assembly fitted to a sound-generating unit to form a loudspeaker, with a vibration-damping structure functioning as a buffer between the sound-generating unit and the rectangular magnetic assembly to achieve vibration damping and vibration isolation in operation to spare users the discomfort they will otherwise experience for using electronic devices.
To facilitate understanding of the object, characteristics and effects of this present disclosure, embodiments together with the attached drawings for the detailed description of the present disclosure are provided.
Referring to the first embodiment illustrated by
The rectangular magnetic assembly 10 includes a main magnetic plate 11, a magnetic unit 12, a vibration-damping structure connecting portion 13 and at least one vibration-damping groove 14. The magnetic units 12 is disposed at the top of the main magnetic plate 11. The vibration-damping structure connecting portion 13 and the vibration-damping groove 14 are disposed at the bottom of the main magnetic plate 11. The vibration-damping structure connecting portion 13 and the vibration-damping groove 14 are integrally formed at the bottom of the main magnetic plate 11. The vibration-damping groove 14 is disposed outside the vibration-damping structure connecting portion 13. The vibration-damping structure connecting portion 13 protrudes from the bottom of the main magnetic plate 11 relative to the vibration-damping groove 14.
The vibration-damping structure 20 is integrally formed and includes a ring-shaped speaker base butting portion 21, a magnetic assembly butting portion 22, a first resilient connecting module 23 and a second resilient connecting module 24. The magnetic assembly butting portion 22 is disposed inside the ring-shaped speaker base butting portion 21. The first resilient connecting module 23 and the second resilient connecting module 24 are connected between the two long sides and two short sides of the ring-shaped speaker base butting portion 21 as well as between the two long sides and two short sides of the magnetic assembly butting portion 22. The magnetic assembly butting portion 22 is connected to the vibration-damping structure connecting portion 13. The magnetic assembly butting portion 22 is adhered or welded to the vibration-damping structure connecting portion 13. The first resilient connecting module 23 and the second resilient connecting module 24 are disposed at the vibration-damping groove 14. In the disclosure, the vibration-damping structure 20 is made of stainless steel.
To start the operation of the vibration-damping rectangular magnetic assembly of the disclosure, the ring-shaped speaker base butting portion 21 of the vibration-damping structure 20 and a speaker base 31 of a sound-generating unit 30 are combined to form a loudspeaker 1, and the ring-shaped speaker base butting portion 21 has a plurality of fitting portions 211 (for example, fitting holes) coupled to a butting portion 311 (for example, a butting bump) of the speaker base 31 and then adhered thereto to preclude any deviation between the sound-generating unit 30 and the rectangular magnetic assembly 10, allowing the sound-generating unit 30 and the rectangular magnetic assembly 10 to be coupled together quickly and easily to enhance production yield. During its operation, the loudspeaker 1 can be coupled to an acoustic enclosure (not shown) to allow the voice coil of the sound-generating unit 30 to receive external electronic signals such that the main magnetic plate 11 and magnetic units 12 of the rectangular magnetic assembly 10 coordinate with each other to provide more magnetic energy to allow the voice coil to coordinate with the electromagnetic effect of the rectangular magnetic assembly 10 to drive the diaphragm 32 vibrating, causing the loudspeaker 1 to generate sounds.
During the aforesaid operation of the loudspeaker 1, owing to the rectangular magnetic assembly 10 and the vibration-damping structure 20, the speaker base 31 of the sound-generating unit 30 is not in direct contact with the rectangular magnetic assembly 10, and thus the vibration-damping structure 20 can function as a buffer between the speaker base 31 and the rectangular magnetic assembly 10; as a result, the vibration of the rectangular magnetic assembly 10 and the vibration of the speaker base 31 are equal in frequency substantially but opposite in phase to further achieve vibration damping and thereby spare users the discomfort they will otherwise experience for using electronic devices.
Referring to the first embodiment illustrated by
Referring to the second embodiment illustrated by
In addition to the first embodiment illustrated by
Therefore, the first short-side resilient arms 231, the first long-side resilient arms 232, the second short-side resilient arms 241 and the second long-side resilient arms 242 of the vibration-damping structure 20 are symmetrically disposed on the long sides and the short sides of the rectangular magnetic assembly 10 such that the first short-side resilient arms 231, the first long-side resilient arms 232, the second short-side resilient arms 241 and the second long-side resilient arms 242 provide support from X-axis direction and Y-axis direction to buffer the vibration of the rectangular magnetic assembly 10, allow the vibration-damping structure 20 to function as a buffer between the speaker base 31 and the rectangular magnetic assembly 10, and allow the vibration of the rectangular magnetic assembly 10 and the vibration of the speaker base 31 to be equal in frequency substantially but opposite in phase to further achieve vibration damping and thereby spare users the discomfort they will otherwise experience for using electronic devices.
In addition to the first embodiment illustrated by
In addition to the first embodiment illustrated by
Therefore, the first long-side resilient arms 232 and the second long-side resilient arms 242 can undergo resilience adjustment and thus undergo resonant frequency adjustment to enhance the effect of vibration-damping.
Referring to
The invention is disclosed above by preferred embodiments. However, persons skilled in the art should understand that the embodiments are illustrative of the invention only, but shall not be interpreted as restrictive of the scope of the invention. Please note that all variations and replacements equivalent to the embodiments shall be deemed falling within the scope of the invention. Therefore, the legal protection for the invention shall be defined by the appended claims.
Number | Date | Country | Kind |
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202311013566.3 | Aug 2023 | CN | national |