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Hollow actuator-driven droplet dispensing apparatus

A dispensing device and actuator technology, which is applied to liquid spraying devices, devices for coating liquid on surfaces, spraying devices, etc., can solve problems such as bulky volume and complex structure of the dispenser, and achieve high response rate and simple assembly structure. , the effect of a simple overall structure

Active Publication Date: 2010-06-09
KOREA INST OF MASCH & MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing distributors are complex in structure and bulky

Method used

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  • Hollow actuator-driven droplet dispensing apparatus
  • Hollow actuator-driven droplet dispensing apparatus
  • Hollow actuator-driven droplet dispensing apparatus

Examples

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Embodiment Construction

[0031] Reference will now be made in detail to various embodiments of the invention, examples of which are illustrated in the accompanying drawings and described below. While the invention will be described in conjunction with exemplary embodiments, it will be understood that present description is not intended to limit the invention to those exemplary embodiments. On the contrary, the invention is intended to cover not only these exemplary embodiments, but also various alterations, modifications, equivalents and other implementations, all of which may be included within the spirit and scope of the invention as defined by the appended claims .

[0032] figure 1 is a longitudinal sectional view showing a dispensing device H according to a first embodiment of the present invention, Figure 2A and 2B is each showing figure 1 A longitudinal sectional view of a working state of the dispensing device H shown in , wherein Figure 2A shows the ingestion status, while Figure 2B ...

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Abstract

A hollow actuator-driven droplet dispensing apparatus may include an elastic tube having an elastic body, defining a storage space therein, and extending a predetermined length, and a hollow actuator fitted around the elastic tube so as to generate a force and a displacement in the longitudinal direction when an electric field is applied. The hollow actuator is expanded or contracted in the longitudinal direction of the elastic tube when the external voltage is applied, thereby reducing or enlarging the volume of an inner space of the elastic tube. The droplet dispensing apparatus can press the elastic tube to expand or contract the volume of the inner space of the tube using the hollow actuator capable of quickly generating a displacement in response to an application voltage so that a fixed amount of content can be discharged out and taken into the tube.

Description

technical field [0001] The present invention relates to a droplet dispensing device for precisely dispensing a defined amount of liquid droplets, and more particularly, to a hollow actuator driven droplet dispensing device comprising a sleeve and a hollow laminated piezoelectric actuator (laminated piezoelectric actuator), which is constituted by stacking a plurality of piezoelectric devices on opposite end surfaces of a hollow piezoelectric ceramic body, and each device is coated with electrodes, so that the sleeve can correspond to the piezoelectric device Expands and contracts longitudinally to inhale or dispense contents. [0002] The hollow actuator driven droplet dispensing device of the present invention can precisely control the amount of contents dispensed by the cannula by controlling the voltage supplied to the piezoelectric device, because the actuator is composed of a hollow stacked piezoelectric device constitute. Background technique [0003] Micro-droplet j...

Claims

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Application Information

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IPC IPC(8): B05B17/04B05B12/00B05B15/00
CPCB05B13/0278B05C5/0291B05C11/00
Inventor 咸永福朴重濠尹苏南崔相奎
Owner KOREA INST OF MASCH & MATERIALS
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