ANC system sound production module with cavity characteristics

A sounding module and cavity technology, applied in frequency/direction characteristic devices, hearing devices with active noise cancellation, sensors, etc., can solve the problems affecting the mute interval range and the minimum frequency, the low frequency cannot be effectively suppressed, and the low frequency sound wave cannot be emitted.

Pending Publication Date: 2020-07-10
西安云脉智能技术有限公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although the existing active noise reduction equipment can meet the basic needs of use, the disadvantages are still very obvious. The main manifestations are: the current active noise reduction products cannot effectively suppre

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
  • ANC system sound production module with cavity characteristics
  • ANC system sound production module with cavity characteristics
  • ANC system sound production module with cavity characteristics

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] The technical solutions in the embodiments of the invention of the application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the invention of the application. Obviously, the described embodiments of the invention are only part of the embodiments of the invention of the application, not all of them. Invention Example. Based on the invention embodiments in this application, all other invention embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

[0018] see Figure 1-4 , an ANC system sound module with cavity characteristics, including a speaker fixing device 1, the left and right sides of the speaker fixing device 1 are respectively fixedly connected with fixing plates 2, and the middle parts of the fixing plates 2 on both sides are respectively provided with and their own length The chute 3 with the same value, the...

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

No PUM Login to view more

Abstract

The embodiment of the invention discloses an ANC system sound production module loudspeaker fixing device with cavity characteristics. The ANC system sound production module loudspeaker fixing devicecomprises a loudspeaker fixing device body, fixing plates are fixedly connected to the left side and the right side of the loudspeaker fixing device body respectively, sliding grooves with the lengthequal to that of the fixing plates are formed in the middles of the fixing plates on the two sides respectively, mounting grooves are connected to the upper ends and the lower ends of the sliding grooves in a clamped mode respectively, and a loudspeaker is mounted in an inner cavity of the loudspeaker fixing device body. According to the acoustic equipment structure applied to active noise reduction, a loudspeaker and a loudspeaker fixing device body are assembled and connected to form a sound production module; an enclosed box body can effectively isolate the communication of front and back air at the loudspeaker diaphragm, sound short circuit is prevented from being formed, low-frequency distortion of the loudspeaker is greatly reduced, the low-frequency processing capacity of the activenoise reduction device is improved, processable minimum-frequency sound waves are reduced, the range of a mute interval is enlarged, the purpose of noise reduction is achieved, and the practicabilityand feasibility of the device are reflected.

Description

technical field [0001] The present application relates to the field of noise reduction equipment, and more specifically, to a loudspeaker fixing device for an ANC system sound module with a cavity feature. Background technique [0002] With the rapid development of my country's economy, high-speed rail travel has developed into the main mode of transportation for national travel, and passenger comfort has become an important concern. Among them, the noise level in the train compartment during running is an important index to measure the comfort of passengers. Therefore, the control of noise has become a hot spot in the research of high-speed rail, automobiles, airplanes, and ships. The research on active noise reduction technology in my country started in the 1990s, and it is mainly concentrated in scientific research institutions such as domestic university research institutes and the military industry. At present, there are no active noise reduction products with mature ...

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): H04R1/28
CPCH04R1/2811H04R2460/01
Inventor 崔强霍习策董宏达
Owner 西安云脉智能技术有限公司
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