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Small-size memory alloy size driver

A memory alloy and driver technology, which is applied to machines/engines, mechanisms that generate mechanical power, mechanical equipment, etc., can solve the problems of large overall structure size and complex structure of memory alloy volume drivers, and achieve simple structure, high reliability and high reliability. The effect of reducing weight and size

Pending Publication Date: 2021-10-19
SUN YAT SEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is: the overall structure size of the memory alloy volume driver is relatively large and the structure is complex

Method used

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  • Small-size memory alloy size driver
  • Small-size memory alloy size driver

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Embodiment Construction

[0017] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0018] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", " The orientation or positional relationship indicated by "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of description The present invention and simplified description do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and thus should not be construed as limiting the present...

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Abstract

The invention relates to the technical field of memory alloy drivers, and discloses a small-size memory alloy size driver which comprises a memory alloy outer cover and a columnar fluid bag. The memory alloy outer cover is arranged on the side face of the fluid bag in a sleeving mode, a cavity used for containing fluid is formed in the fluid bag, an opening communicating with the cavity is formed in one end of the fluid bag, and the fluid bag is made of an elastic material; and when the memory alloy outer cover is heated to shrink and deform, the fluid bag can be extruded, so that the size of the cavity is reduced. The memory alloy size driver is simple in structure and high in reliability, and compared with an existing memory alloy driver, the weight and the size can be reduced.

Description

technical field [0001] The invention relates to the technical field of memory alloy drives, in particular to a small-volume memory alloy volume drive. Background technique [0002] Memory alloy volume driver refers to a device that adopts memory alloy deformation method to realize volume change. It has great application value in hydraulic system or underwater vehicle buoyancy adjustment system. At present, the way to change the volume through memory alloy is to use the combination of memory alloy wire and spring. The memory alloy wire is heated and tensioned, and at the same time the spring is compressed, the piston moves, the memory alloy wire cools down, the spring rebounds, the memory alloy wire elongates, and the piston returns. Shift, the repeated movement of the piston changes the volume of the chamber. [0003] However, the combination of memory alloy wire and spring in the prior art has the following disadvantages: the weight of the spring and its fixed structure is...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03G7/06
Inventor 王天霖
Owner SUN YAT SEN UNIV