A temperature sensing drive mechanism

Abstract

A temperature-sensing driving mechanism, characterized in that it includes a bracket, a pocket body arranged on the bracket, and a hydraulic system, the hydraulic system includes a pipeline, and the input end of the pipeline is in airtight communication with the pocket body, so The pipeline of the bag body and the hydraulic system is filled with interconnected liquid, and the bag body is also provided with an upper half cover body and a lower half cover body for sandwiching the bag body therebetween, and the upper half cover body passes through a vertical Two or more two-way shape memory alloy parts arranged on the left and right sides of the lower part of the pocket body are connected to the bracket, and the lower half cover is vertically arranged on the left and right sides of the upper part of the pocket body through two or more two-way shape memory alloy parts. The parts are connected with the support, and the output end of the hydraulic system is used to be connected with the rear-end mechanism. The temperature-sensing drive mechanism is driven by a two-way shape-memory alloy piece, and the two-way shape-memory alloy piece can be arranged at a certain distance from the rear-end mechanical mechanism as required, and can correctly sense the ambient temperature.

Description

technical field [0001] The invention relates to the technical field of driving devices, in particular to a temperature-sensitive driving mechanism. Background technique [0002] At present, there is a temperature-sensing driving mechanism based on two-way shape memory alloy. It deforms the two-way shape memory alloy by sensing the change of temperature. This deformation changes the stroke, which can then drive the movement of the rear end mechanism, such as After the door / window is connected, the opening and closing of the door / window can be driven. The temperature-sensing drive mechanism based on two-way shape memory alloy does not require electric drive, saves energy and electricity, has good reliability and low cost, and is especially suitable for occasions where it is inconvenient to obtain power in the field and high temperature and high humidity, such as greenhouses. [0003] However, the existing temperature-sensing drive mechanism still has the following technical p...

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Problems solved by technology

[0003] However, the existing temperature-sensing drive mechanism still has the following technical problems: the two-way shape memory alloy is used as both a sensor and an actuator, and it is directly connected to the rear-end mechanism, which is a solid-solid connection. Where the mechanism is set, the two-way shape memory alloy piece is set there, so that when it is applied to the opening and closing of a door / window in a certain confined space, for example, when the skylight of a greenhouse is opened and closed, due to the opening of the skylight Finally, the cool wind entering from the outside will first lower the temperature of the local area near the skylight, so that the two-way shape memory alloy will sense the temperature drop, and will deform to close the skylight, but in fact the overall temperature in the greenhouse is basically still. did not drop, resulting in the two-way shape memory alloy parts not being able to sense the ambient temperature correctly

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