Actuating and sensing module

Patent metadata

Field	Value
Publication number	US-2021332834-A1
Application number	US-202117234123-A
Country	US
Kind code	A1
Filing date	Apr 19, 2021
Priority date	Apr 24, 2020
Publication date	Oct 28, 2021
Grant date	—

Abstract

An actuating and sensing module is disclosed and includes a bottom plate, a gas pressure sensor, a thin gas transportation device and a cover plate. The bottom plate includes a pressure relief orifice, a discharging orifice and a communication orifice. The gas pressure sensor is disposed on the bottom plate and seals the communication orifice. The thin gas transportation device is disposed on the bottom plate and seals the pressure relief orifice and the discharging orifice. The cover plate is disposed on the bottom plate and covers the gas pressure sensor and the thin gas-transportation device. The cover plate includes an intake orifice. The thin gas transportation device is driven to inhale gas through the intake orifice, the gas is then discharged through the discharging orifice by the thin gas transportation device, and a pressure change of the gas is sensed by the gas pressure sensor.

First claim

What is claimed is:

1 . An actuating and sensing module comprising:
a bottom plate comprising a pressure relief orifice, a discharging orifice and a communication orifice; a gas pressure sensor disposed on the bottom plate and sealing the communication orifice; a thin gas transportation device disposed on the bottom plate and sealing the discharging orifice and the pressure relief orifice; and a cover plate disposed on the bottom plate and covering the gas pressure sensor and the thin gas-transportation device, wherein the cover plate comprises an intake orifice; wherein the thin gas transportation device is driven to inhale gas through the intake orifice, the gas is then discharged through the discharging orifice by the thin gas transportation device, and a pressure change of the gas is sensed by the gas pressure sensor.

2 . The actuating and sensing module according to claim 1 , wherein the intake orifice is correspondingly arranged with the gas pressure sensor.

3 . The actuating and sensing module according to claim 1 , wherein the discharging orifice is in fluid communication with a positive pressure load.

4 . The actuating and sensing module according to claim 3 , wherein the positive pressure load is an air bag.

5 . The actuating and sensing module according to claim 3 , wherein the positive pressure load is a gas cylinder.

6 . The actuating and sensing module according to claim 1 , wherein the intake orifice is in fluid communication with a negative pressure load.

7 . The actuating and sensing module according to claim 6 , wherein the negative pressure load is an air bag.

8 . The actuating and sensing module according to claim 6 , wherein the negative pressure load is a gas cylinder.

9 . The actuating and sensing module according to claim 1 , wherein the thin gas transportation device comprises:
a thin gas pump comprising:
an inlet plate comprising a first surface, a second surface opposed to the first surface, a plurality of inlet apertures, a plurality of intake channels and a convergence chamber, wherein each one of the plurality of inlet apertures penetrates from the first surface to the second surface, the convergence chamber is recessed from the second surface and located at a center of the second surface, and each of the plurality of intake channels is recessed from the second surface and comprises a first end in fluid communication with the corresponding inlet aperture and a second end in fluid communication with the convergence chamber;
a resonance plate connected to the second surface and comprising a central aperture, a vibration part and a fixed part, wherein the central aperture is located at a center position of the resonance plate, the vibration part surrounds the central aperture and corresponds to the convergence chamber, and the fixed part surrounds the vibration part, wherein the resonance plate is connected to the inlet plate through the fixed part;
an actuation element connected to the fixed part of the resonance plate;
a first insulation frame connected to the actuation element;
a conducting frame connected to the first insulation frame; and
a second insulation frame connected to the conducting frame; and
a thin valve structure connected to the second insulation frame and comprising:
a first thin plate comprising a hollowed region;
a valve frame comprising a valve-plate-accommodation region;
a valve plate disposed in the valve-plate-accommodation region and comprising a valve aperture, wherein the valve aperture is misaligned with the hollowed region; and
a second thin plate comprising an outgassing surface, a pressure relief surface opposed to the outgassing surface, an outlet groove, an outlet aperture, a pressure relief aperture and a pressure relief groove, wherein the outlet groove is recessed from the outgassing surface and partially misaligned with the hollowed region of the first thin plate, the outlet aperture is hollowed out from the outgassing surface toward the pressure relief surface, and is corresponding to the valve aperture, the pressure relief aperture is spaced apart from the outlet groove, and the pressure relief groove is recessed from the pressure relief surface and in fluid communication with the pressure relief aperture;
wherein the first thin plate, the valve plate and the second thin plate are stacked and fixed sequentially.

10 . The actuating and sensing module according to claim 9 , wherein the actuation element comprises:
a vibration plate being a square structure; an outer frame arranged around the vibration plate; a plurality of connection components connected between the vibration plate and the outer frame, respectively, for elastically supporting the vibration plate; and a piezoelectric plate with a shape and an area corresponding to the vibration plate and attached to the vibration plate.

11 . The actuating and sensing module according to claim 9 , wherein the outlet aperture has a diameter greater than that of the valve aperture.

12 . The actuating and sensing module according to claim 9 , wherein the first thin plate, the valve frame and the second thin plate are made of a metal material.

13 . The actuating and sensing module according to claim 12 , wherein the metal material is a stainless steel material.

14 . The actuating and sensing module according to claim 9 , wherein the hollowed region and the outlet groove are in an identical shape.

15 . The actuating and sensing module according to claim 1 , wherein the actuating and sensing module has a length less than 18 mm, a width less than 16 mm, and a thickness less than 4 mm.

Assignees

• Microjet Technology Co Ltd

Inventors

• Mou Hao-Jan
• Chen Shih-Chang
• Liao jia-yu
• Liao Hung-Hsin
• Kao Chung-Wei
• Huang Chi-Feng
• Han Yung-Lung
• Tsai Chang-Yen
• Lee Wei-Ming

Classifications

• F04B45/047 Primary

  Pumps having electric drive · CPC title

• F15B13/0417 Primary

  Load sensing elements; Internal fluid connections therefor; Anti-saturation or pressure-compensation valves · CPC title

• F15B2211/3053

  In combination with a pressure compensating valve · CPC title

• F15B2211/6055

  using pressure relief valves · CPC title

• F16K99/0015 Primary

  Diaphragm or membrane valves · CPC title