Title:
CYLINDRICAL CONTACT-TYPE MICROPHONE
Document Type and Number:
WIPO Patent Application WO/2017/071109
Kind Code:
A1
Abstract:
A cylindrical contact-type microphone, which relates to the technical field of audio devices, and solves the technical problem of inconvenient assembly of an existing contact-type microphone. The microphone comprises a shell, and a circuit board (4), a piezoelectric ceramic sheet (2), a lower-stage connection plate (3) and a conductive polar ring (5) which are mounted within the shell, wherein the shell is a two-section cylindrical conductive cylinder body, and a negative signal lower connection sheet of the lower-stage connection plate (3) is electrically connected to a step (13) at a joint portion of an upper cylinder section (11) and a lower cylinder section (12) of the shell; a bottom edge of the conductive polar ring (5) is electrically connected to a positive signal lower connection sheet of the lower-stage connection plate (3); the piezoelectric ceramic sheet (2) is inserted into the shell, and positive and negative electrodes of the piezoelectric ceramic sheet (2) are respectively connected to the positive signal lower connection sheet and the negative signal lower connection sheet of the lower-stage connection plate (3); a positive signal upper connection sheet of the circuit board (4) is electrically connected to an upper edge of the conductive polar ring (5); and an upper edge of the shell is bent inward and is electrically connected to a negative signal upper connection sheet of the circuit board (4).
More Like This:
| JP3541833 | HEADSET |
| WO/2019/135661 | LAUNDRY TREATMENT MACHINE |
Inventors:
HU QIANG (CN)
Application Number:
PCT/CN2016/000383
Publication Date:
May 04, 2017
Filing Date:
July 14, 2016
Export Citation:
Assignee:
HU QIANG (CN)
International Classes:
H04R1/08
Foreign References:
| CN105245984A | 2016-01-13 | |||
| CN205105359U | 2016-03-23 | |||
| CN201114760Y | 2008-09-10 | |||
| CN201215970Y | 2009-04-01 | |||
| US20100172519A1 | 2010-07-08 | |||
| US6463157B1 | 2002-10-08 |
Other References:
See also references of EP 3370432A4
Attorney, Agent or Firm:
SHANGHAI SHEN HUI PATENT AGENT CO., LTD. (CN)
Download PDF:
Previous Patent: USE OF COPPER-CARBON COMPOSITE NANOMATERIAL IN ALGAE CONTROL
Next Patent: ASSEMBLED-TYPE UNDERGROUND PIPE GALLERY
Next Patent: ASSEMBLED-TYPE UNDERGROUND PIPE GALLERY