Fluid delivery device

Abstract

The present invention relates to a fluid-conveying device. The fluid-conveying device comprises a valve body seat, a valve body cover, a valve body film, a plurality of temporary storage chambers; a vibrating film and an actuator; wherein, the valve body seat is provided with an outlet channel and an inlet channel; the valve body cover is arranged on the valve body seat; the valve body film, which is arranged between the valve body seat and the valve body cover, is provided with a plurality of valve switches, which include a first valve switch and a second valve switch; the temporary storage chambers include a first temporary storage chamber and a second temporary storage chamber; while in a static state, the vibrating film is separated from the valve body cover to form a pressure chamber; and the actuator is connected with the vibrating film. When the actuator is driven by a voltage to be bent, the vibrating film is driven to change the volume of the pressure chamber, and as a result, pressure difference is generated to push fluid to flow into the inlet channel, pass through the first valve switch, the first temporary storage chamber, the pressure chamber, the second temporary storage chamber and the second valve switch and flow out of the outlet channel.

Description

technical field [0001] The invention relates to a fluid delivery device, in particular to a fluid delivery device suitable for a micropump structure. Background technique [0002] At present, in various fields, whether it is medicine, computer technology, printing, energy and other industries, products are developing towards refinement and miniaturization. Among them, the fluid delivery structures included in products such as micropumps, sprayers, inkjet heads, and industrial printing devices As its key technology, how to break through its technical bottleneck through innovative structure is an important content of development. [0003] Please refer to Fig. 1 a, which is a structural schematic diagram of a known micropump structure when it is not actuated. The known micropump structure 10 includes an inlet channel 13, a microactuator 15, a transmission block 14, an interlayer film 12, and a compression chamber 111. , the base plate 11 and the outlet channel 16, wherein a co...

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Problems solved by technology

[0006] This kind of micropump structure 10 without physical valves is prone to a large amount of backflow of fluid, so in order to increase the flow rate, the compression chamber 111 needs to have a larger compression ratio , in order to generate enough chamber pressure, it needs to spend a higher cost on the actuator 15

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