Manufacturing method of fluid control device

• US 10,343,405 B2
• Filed: 07/03/2017
• Issued: 07/09/2019
• Est. Priority Date: 09/05/2016
• Status: Active Grant

• Current Assignee: Microjet Technology Co Limited (Microjet Technology)
• Original Assignee: Microjet Technology Co Limited (Microjet Technology)
• Inventors: Chen, Shih-Chang, Chang, Ying-Lun, Wu, Hsiang-Dyi, Huang, Chi-Feng, Han, Yung-Lung, Liao, Jia-Yu, Chen, Jheng-Wei
• Primary Examiner(s): Musser, Barbara J
• Application Number:
  US15/641,054
• Publication Number:
  US 20180065370A1
• Time in Patent Office: 736 Days
• Field of Search: None
• CPC Class Codes: B29C 53/04 of plates or sheets B29C63/04 takes precedence; bending or folding paper B31F1/0003; folding films B65H45/00
• CPC Class Codes: B29C 65/48 using adhesives , i.e. using supplementary joining material; solvent bonding
• CPC Class Codes: B29C 69/00 Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore B29C48/001 takes precedence
• CPC Class Codes: B29L 2031/7496 Pumps
• CPC Class Codes: B29L 2031/767 Printing equipment or accessories therefor
• CPC Class Codes: B41J 2/161 of film type, deformed by bending and disposed on a diaphragm
• CPC Class Codes: B41J 2/1623 bonding and adhesion
• CPC Class Codes: F04B 17/003 driven by piezoelectric means F04B43/046 and F04B43/095 take precedence
• CPC Class Codes: F04B 43/046 with piezoelectric drive
• CPC Class Codes: H10N 30/02 Forming enclosures or casings
• CPC Class Codes: H10N 30/03 Assembling devices that include piezoelectric or electrostrictive parts

Abstract

A manufacturing method of a fluid control device is provided. Firstly, a housing, a piezoelectric actuator and a deformable substrate are provided. The piezoelectric actuator includes a piezoelectric element and a vibration plate having a bulge. The deformable substrate includes a flexible plate and a communication plate. The flexible plate includes a movable part. Then, the flexible plate and the communication plate are stacked on and coupled with each other to form the deformable substrate. Then, the housing, the piezoelectric actuator and the deformable substrate are sequentially stacked on each other and coupled with each other. A synchronous deformation process is implemented by applying at least one external force to the deformable substrate, so that the flexible plate and the communication plate of the deformable substrate are subjected to a synchronous deformation, and a specified depth between the movable part and the bulge of the vibration plate is defined.

Claims

1. A manufacturing method of a fluid control device, comprising:

(a) providing a housing, a piezoelectric actuator and a deformable substrate, wherein the piezoelectric actuator comprises a piezoelectric element and a vibration plate, and the deformable substrate comprises a flexible plate and a communication plate, wherein the vibration plate has a first surface and an opposing second surface, a bulge is formed on the second surface of the vibration plate, the communication plate has an outer surface, and the flexible plate comprises a movable part;

(b) stacking and coupling the flexible plate and the communication plate to form the deformable substrate; and

(c) coupling the housing, the piezoelectric actuator and the deformable substrate which are sequentially stacked, applying at least one external force thereon to implement a synchronous deformation process, so that the flexible plate and the communication plate of the deformable substrate are subjected to a synchronous deformation, and a specified depth is defined between the movable part of the flexible plate and the bulge of the vibration plate,

wherein a synchronously-deformed region of the deformable substrate includes the movable part, the deformable substrate is a conical synchronously-deformed structure, and the specified depth is defined between the conical synchronously-deformed structure and the bulge of the vibration plate.

2. The manufacturing method according to claim 1, wherein the at least one external force is applied to the outer surface of the communication plate, so that the deformable substrate is subjected to the synchronous deformation.

3. The manufacturing method according to claim 2, wherein the at least one external force is applied to the outer surface of the communication plate and in a direction toward the flexible plate, so that the deformable substrate is subjected to the synchronous deformation, and a mark is formed on the outer surface of the communication plate by the at least one external force.

4. The manufacturing method according to claim 2, wherein the at least one external force is applied to the outer surface of the communication plate and in a direction away from the flexible plate, so that the deformable substrate is subjected to the synchronous deformation, and a mark is formed on the outer surface of the communication plate by the at least one external force.

5. The manufacturing method according to claim 2, wherein an operation gap is formed between the at least one external force and the outer surface of the communication plate, and the at least one external force is in a direction away from the flexible plate so that the deformable substrate is subjected to the synchronous deformation, and a mark is formed on the outer surface of the communication plate by the at least one external force.

6. The manufacturing method according to claim 5, wherein the at least one external force is a suction force or a magnetic attraction force.

7. The manufacturing method according to claim 1, wherein the synchronously-deformed region of the deformable substrate includes a region beyond the movable part of the flexible plate.

8. The manufacturing method according to claim 1, wherein the vibration plate of the piezoelectric actuator has a square shape, and the piezoelectric actuator further comprises:

an outer frame arranged around the vibration plate; and

at least one bracket connected between the vibration plate and the outer frame for elastically supporting the vibration plate.

9. The manufacturing method according to claim 1, wherein the deformable substrate and the vibration plate are connected with each other through a medium, and the medium is an adhesive.

10. A manufacturing method of a fluid control device, comprising:

(a) providing a housing, a piezoelectric actuator and a deformable substrate, wherein the piezoelectric actuator comprises a piezoelectric element and a vibration plate, and the deformable substrate comprises a flexible plate and a communication plate, wherein the vibration plate has a first surface and an opposing second surface, a bulge is formed on the second surface of the vibration plate, the communication plate has an outer surface, and the flexible plate comprises a movable part;

(b) stacking and coupling the flexible plate and the communication plate to form the deformable substrate; and

(c) coupling the housing, the piezoelectric actuator and the deformable substrate which are sequentially stacked, applying at least one external force thereon to implement a synchronous deformation process, so that the flexible plate and the communication plate of the deformable substrate are subjected to a synchronous deformation, and a specified depth is defined between the movable part of the flexible plate and the bulge of the vibration plate,

wherein the deformable substrate is a curvy-surface synchronously-deformed structure composed of the communication plate and the flexible plate, the curvy-surface synchronously-deformed structure comprises plural curvy surfaces with an identical curvature or different curvatures, and the specified depth is defined between the curvy-surface synchronously-deformed structure and the bulge of the vibration plate.

11. A manufacturing method of a fluid control device, comprising:

(a) providing a housing, a piezoelectric actuator and a deformable substrate, wherein the piezoelectric actuator comprises a piezoelectric element and a vibration plate, and the deformable substrate comprises a flexible plate and a communication plate, wherein the vibration plate has a first surface and an opposing second surface, a bulge is formed on the second surface of the vibration plate, the communication plate has an outer surface, and the flexible plate comprises a movable part;

(b) stacking and coupling the flexible plate and the communication plate to form the deformable substrate; and

(c) coupling the housing, the piezoelectric actuator and the deformable substrate which are sequentially stacked, applying at least one external force thereon to implement a synchronous deformation process, so that the flexible plate and the communication plate of the deformable substrate are subjected to a synchronous deformation, and a specified depth is defined between the movable part of the flexible plate and the bulge of the vibration plate,

wherein the deformable substrate is an irregular synchronously-deformed structure composed of the communication plate and the flexible plate, and the specified depth is defined between the irregular synchronously-deformed structure and the bulge of the vibration plate.