Speaker device

A loudspeaker and exciter technology, applied in the field of loudspeaker devices, can solve problems such as damage to the design of the vibrating plate

Active Publication Date: 2020-10-23
ASAHI GLASS CO LTD
View PDF10 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this method, although the vibration of the sound signal can be efficiently transmitted to the vibrating plate, the vibrating plate has a problem of impairing the design of the vibrating

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Speaker device
  • Speaker device
  • Speaker device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0159] Hereinafter, although an Example is given and this invention is demonstrated concretely, this invention is not limited to these descriptions.

[0160]

[0161] One side of a pair of substrates was used as substrate 1, and a glass substrate A of 300 mm × 300 mm × 0.5 mm was prepared. On the surface of the substrate, silicone oil with a viscosity coefficient of 3000 mPa·s (Shin-Etsu Chemical Industry; KF-96) as a liquid layer. And the other one of a pair of board|substrates was used as the board|substrate 2, and the glass substrate B of 300 mmx300 mmx0.5 mm was adhered to the glass substrate A so that the liquid thickness might become 3 micrometers. Thus, a diaphragm structure having two glass substrates and a liquid layer was obtained.

[0162] The compositions (% by mass) and physical property values ​​of the glass substrate A and the glass substrate B are shown below.

[0163] (Glass substrate A) SiO 2 : 61.5%, Al 2 o 3 : 20%, B 2 o 3 : 1.5%, MgO: 5.5%, CaO: 4...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Thicknessaaaaaaaaaa
Viscosity coefficientaaaaaaaaaa
Surface tensionaaaaaaaaaa
Login to view more

Abstract

A speaker device is provided with a diaphragm (11); an exciter (13) for generating vibration in accordance with an inputted electric signal; and a vibration transmission unit (15), provided between the diaphragm (11) and the exciter (13), for transmitting vibration from the exciter (13) to the diaphragm (11). The loss factor of the diaphragm (11) at 25 DEG C is 1*10-2 or greater, and the specificelastic modulus of the vibration transmission unit (15) is 20 mm2/s2 or greater.

Description

technical field [0001] The present invention relates to a speaker device that vibrates a diaphragm to generate sound. Background technique [0002] Generally, there is known a technique for generating sound from a diaphragm by vibrating a diaphragm with an exciter having a vibrating portion (for example, refer to Patent Document 1). Patent Document 1 describes a configuration in which a vibration speaker for converting an audio signal into vibration is provided on the lower surface of the ceiling, and a vibration plate is provided in direct contact with the vibration transmission surface of the vibration speaker. According to this configuration, the vibration speaker excites the diaphragm to generate sound corresponding to the sound vibration from the diaphragm. [0003] Patent Document 1: Japanese Patent Laid-Open No. 2016-23000 [0004] In a speaker device having such a diaphragm, in recent years, it has been proposed to use transparent materials such as glass plates and...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H04R7/04H04R7/02H04R7/08H04R7/10
CPCH04R7/06H04R7/122H04R9/025H04R9/04H04R9/06H04R7/10H04R7/125H04R7/18H04R31/003H04R2307/023H04R2440/05H04R2499/15H04R1/2834
Inventor 秋山顺樱井研人
Owner ASAHI GLASS CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap