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A high-precision valved micropump driven by a temperature-controlled shape memory alloy

A technology of memory alloy and memory alloy spring, which is applied to components of pumping devices for elastic fluids, pumps with flexible working elements, pumps, etc., can solve the problem of large volume of driving devices, poor one-way cut-off performance, and driving frequency. Low-level problems, to achieve the effect of good one-way cut-off performance, easy production, and high power-to-weight ratio

Inactive Publication Date: 2018-03-20
NANCHANG INST OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In order to solve the problems of the existing micropumps such as large size of the driving device, poor one-way cut-off performance, low driving frequency, and poor sealing

Method used

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  • A high-precision valved micropump driven by a temperature-controlled shape memory alloy
  • A high-precision valved micropump driven by a temperature-controlled shape memory alloy
  • A high-precision valved micropump driven by a temperature-controlled shape memory alloy

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Embodiment Construction

[0027] In order to make the technical solution and advantages of the present invention clearer, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings: this embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and The specific operation process, but the scope of protection of the present invention is not limited to the following examples.

[0028] figure 1 It is a sectional view of the central axis of the overall structure of the present invention, figure 2 It is a sectional view along the axis of the piston I of the present invention, image 3 It is the left side view of the piston I of the present invention, see below figure 1 , 2 , 3 for examples.

[0029] The micropump includes a temperature-controlled shape memory alloy spring II (1), a temperature-controlled shape memory alloy spring I (2), a cooling ceramic tube (3), an upper...

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Abstract

A high-precision valved micropump driven by temperature-controlled shape memory alloy, including: temperature-controlled shape-memory alloy spring II, temperature-controlled shape-memory alloy spring I, cooling ceramic tube, upper end cover, pump body shell, piston I end cover , sliding bearing, circlip, connecting flange, external drive joint, piston II, check valve, pump cavity, piston I, power terminals A, B, C, D, cooling ceramic tube fixed on the upper end cover, temperature control shape Memory alloy springs Ⅰ and Ⅱ run through the cooling ceramic tube and are located on both sides of the end cover of piston Ⅰ. Piston Ⅰ can slide in the sliding bearing. The sliding bearing is installed on the pump casing. connect. Compared with the existing micro-pump, the present invention not only has good structural heat dissipation performance, good sealing performance and good one-way cut-off performance, but also utilizes the cooling effect of the cooling ceramic tube so that the pump can work normally under high-frequency conditions.

Description

technical field [0001] The invention relates to a high-precision valved micropump driven by a temperature-controlled shape memory alloy, which belongs to the technical field of micropumps. Background technique [0002] High-precision micropumps are widely used in chemical analysis and detection, bioengineering, clinical medicine, integrated circuit chips, micro components, and miniaturized production systems. The performance requirements of micropumps in this field are fast response, good one-way cut-off performance, good sealing, and high output pressure. Therefore, how to improve the response speed, output pressure and control precision of the micropump has become an important development direction of the micropump. [0003] At present, there are many types of high-precision micropumps at home and abroad. The main micropumps include high-precision micropumps driven by magnetically controlled shape memory alloys, high-precision micropumps driven by piezoelectric ceramics, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B53/08F04B53/10F04B53/16F04B43/00
CPCF04B43/00F04B53/08F04B53/10F04B53/16
Inventor 唐刚邹鹏君徐兵胡敏闫肖肖徐斌邓小珍
Owner NANCHANG INST OF TECH
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