Passive radiator and sound production device

A passive radiator and sound-emitting device technology, applied in sensors, sensor parts, frequency/directional characteristic devices, etc., can solve the problems of difficult to push the diaphragm, distortion, sensitivity reduction, etc., to achieve fast vibration recovery, reduce distortion risk, The effect of improving stable performance

CN113852891APending Publication Date: 2021-12-28GEER TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2021-12-28

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Abstract

The invention discloses a passive radiator and a sound production device, the passive radiator comprises a frame, a vibrating diaphragm, a folding ring and a damping assembly, and the frame is provided with an opening; the vibrating diaphragm is arranged in the opening; the inner side of the folding ring is connected with the vibrating diaphragm, and the outer side of the folding ring is connected with the edge of the opening; the damping assembly comprises first damping pieces and second damping pieces which are connected, the first damping pieces are arranged on the surface of the vibrating diaphragm, the second damping pieces are arranged on the surface of the folding ring, the first damping pieces are arranged on the surface of the vibrating diaphragm in a central symmetry mode, the first damping pieces are made of elastic materials, and the second damping pieces are made of flexible materials. According to the passive radiator, the low-frequency vibration frequency can be improved, and the distortion phenomenon is avoided while the radiation quantity is increased.
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Description

technical field

[0001] The invention relates to the technical field of sound-generating device structures, in particular to a passive radiator and sound-generating equipment. Background technique

[0002] Passive radiators, commonly known as false speakers, do not contain a drive system themselves, but rely on active speakers to work, and are driven to convert the heat and kinetic energy generated by the compressed air generated by the active speakers during the acoustic-electric transduction process into acoustic signals. Generally, a passive radiator is composed of a diaphragm, a ring, and structural parts. In order to improve its low-frequency radiation effect, the existing structure only adds a counterweight to the diaphragm. In this way, the low-frequency resonance frequency can be reduced, but also It will make the diaphragm too heavy to push, and the sensitivity will decrease; while another structure improves the compliance by changing the ring material to make it eas...

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Embodiment Construction

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0030] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relationship between the components in a certain posture (as shown in the accompanying drawings). Relative positional relationship, movement conditions, etc., if the specific posture changes, the directional indication will also change accordingly.

[0031] At the same time,...