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A self-regulating temperature-controlling heater for spacecraft

A heater and self-regulating technology, applied to auxiliary controllers with auxiliary heating devices, using electric methods for temperature control, etc., can solve the problem that the temperature stability of the controlled object is difficult to control, and the temperature stability of the controlled object is greatly affected Large, difficult to adapt to real-time changes in the external environment, etc., to achieve the effects of easier temperature stability control, lower system costs, and avoid shocks

Active Publication Date: 2020-11-20
BEIJING INST OF SPACECRAFT SYST ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] (2) The temperature stability of the controlled object is difficult to control
The heating control method of the traditional temperature control system is to adjust the power-on time of the heating element to control the total heating amount, while the power and current during heating are fixed, and the instantaneous high-power impact during heating has a great impact on the temperature stability of the controlled object
[0009] (3) The control cycle is fixed, and it is difficult to adapt to real-time changes in the external environment
For the intelligent temperature control system, the control cycle is fixed, and when the external environment changes, the control cycle cannot be adjusted in real time

Method used

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  • A self-regulating temperature-controlling heater for spacecraft
  • A self-regulating temperature-controlling heater for spacecraft
  • A self-regulating temperature-controlling heater for spacecraft

Examples

Experimental program
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Effect test

Embodiment 1

[0038] See attached figure 1 , This embodiment provides a self-regulating temperature control heater for a spacecraft, including: a cover plate 1, a heat insulating layer 2, an insulating layer 3, a positive conductive sheet 4, a PTC heating element 5, a negative conductive sheet 6, an insulating sheet 7, Heat insulating gasket 8 and base structure 9;

[0039] The PTC heating element 5 is installed in the heater shell composed of the cover plate 1 and the base structure 9; the cover plate 1 is the upper surface shell of the heater, which is used for fixing the PTC heating element 5 and the positive conductive sheet 4, the negative The installation and compression of the conductive sheet 6; the base structure 9 is used to fix the PTC heating element 5 and provide an external installation interface for the heater;

[0040] See attached figure 2 , the PTC heating element 5 is composed of a PTC material 52 with a conductive coating 51 on the upper and lower surfaces, and the PT...

Embodiment 2

[0051] On the basis of Example 1, cover plate 1, heat insulating layer 2, insulating layer 3, positive conductive sheet 4, PTC heating element 5, negative conductive sheet 6, insulating sheet 7, heat insulating gasket 8 and base structure 9 Make specific restrictions:

[0052] The PTC heating element 5 adopts a highly stable ceramic-based material. In order to ensure reliable electrical contact between the PTC material 52 and the positive conductive sheet 4 and the negative conductive sheet 6, the upper and lower surfaces of the PTC material are coated with a conductive coating 51 respectively. 51 is conductive silver paste;

[0053] The size of a single PTC heating element 5 is 40mm×20mm×2mm, and the Curie temperature point is 50°C. In this example, four PTC heating elements 5 are used for the heater, and the four heating elements are arranged in parallel.

[0054] The positive conductive sheet 4 and the negative conductive sheet 6 are made of 0.1mm thick 2A12 aluminum alloy...

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Abstract

The invention relates to the technical field of temperature control of electronic equipment, and specifically relates to a self-regulation temperature control heater. The self-regulation temperature control heater for a spacecraft is characterized in that PTC (Positive Temperature Coefficient) heating elements are arranged in a heater housing consisting of a cover plate and a base structure; the each PTC heating element is composed of a PTC material with a conductive coating layer on the upper and lower surfaces; insulating sheets are arranged on four side surfaces of the PTC material; a positive conductive sheet and a negative conductive sheet are respectively adhered to the conductive coating layer on the upper and lower surfaces of the PTC material; a thermal insulation pad is arrangedbetween the negative conductive sheet and the base structure; an insulating layer is arranged between the positive conductive sheet and a thermal insulating layer; and the thermal insulating layer isarranged between the cover plate and the insulating layer. The self-regulation temperature control heater utilizes the self characteristics of the PTC material to realize autonomous regulation of theheating loop resistance, can achieve the aim of temperature control by only using a single heater, and removes control software and temperature measurement elements compared with a traditional temperature control system, thus reducing the system scale, reducing the system cost and being higher in reliability.

Description

technical field [0001] The invention relates to the technical field of temperature control of electronic equipment, in particular to a self-regulating temperature control heater. Background technique [0002] Self-regulating temperature control heater is a kind of heating element based on PTC material. PTC material is a conductive material with temperature sensitive characteristics. A characteristic that increases with increasing temperature, the temperature point corresponding to the sudden change in the resistivity of the material is called the Curie temperature point. [0003] Such as figure 1 As shown, the PTC material has a nonlinear PTC effect, that is, the resistivity of the material remains basically unchanged or changes little in a certain temperature range, and when the temperature reaches the specific transition point temperature (Curie temperature) of the material, The resistivity of the material will change suddenly within a narrow temperature range of a few d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05D23/30
CPCG05D23/30
Inventor 彭方汉殷亚州李向恒孟恒辉张鹏孙家林张红星赵欣
Owner BEIJING INST OF SPACECRAFT SYST ENG
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