电容式超声换能器和超声波成像器件
By designing a concave diaphragm layer and a support layer structure, the problem of short service life of capacitive ultrasonic transducers was solved, and the ultrasonic signal strength and imaging quality were improved.
CN118106208BActive Publication Date: 2026-07-17BOE TECHNOLOGY GROUP CO LTD +1
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- BOE TECHNOLOGY GROUP CO LTD
- Filing Date
- 2023-12-12
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
Capacitive ultrasonic transducers and ultrasonic imaging devices have a relatively short lifespan.
Method used
Design a capacitive ultrasonic transducer where the central region of the diaphragm layer is recessed toward the first electrode relative to the edge region, the direction of internal stress in the diaphragm layer is tilted to reduce tensile and shear stress, and the amplitude and directivity are increased through the arc surface design, and the stability is improved by combining the support layer and the flow channel structure.
Benefits of technology
It improves the service life of capacitive ultrasonic transducers, enhances the transmission intensity and directionality of ultrasonic signals, and improves imaging quality and stability.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN118106208B_ABST
Abstract
本发明提供一种电容式超声换能器和超声波成像器件，电容式超声换能器包括：相对设置的第一电极和第二电极；位于所述第一电极和所述第二电极之间的振膜层，所述振膜层和所述第一电极之间具有空腔，所述振膜层的中心区域相对于所述振膜层的边缘区域朝向第一电极凹陷。提高了电容式超声换能器的使用寿命。
Need to check novelty before this filing date? Find Prior Art