An electromagnetic clutch active control contact type thermal switch device for low temperature system

An electromagnetic clutch, low temperature system technology, applied to the power device, electrical switch, circuit and other directions inside the switch, can solve the problems of long switch response time, limited application range, low switch ratio, etc., to achieve short response time, temperature The effect of small dependence and large switching ratio

Active Publication Date: 2019-01-22
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the air-gap thermal switch has achieved active control, its on-off ratio is significantly lower than that of the contact thermal switch, and the switch response time is long and slow; and activated carbon can only effectively absorb the working gas in a fixed temperature zone, and there are also applications limited scope problem

Method used

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  • An electromagnetic clutch active control contact type thermal switch device for low temperature system
  • An electromagnetic clutch active control contact type thermal switch device for low temperature system

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Embodiment

[0028] An electromagnetic clutch active control contact type thermal switch device for low temperature system, such as Figure 1 ~ Figure 2 As shown, the thermal switch device includes a cold end connecting plate 1, a left side plate 2, a thermal bridge 3, an upper sliding rod 4, a lower rod 5, a first electromagnet 6, a second electromagnet 7, an electromagnetic pure iron 8, Support rods 9, 10, 11, right side plate 12 and hot end connecting plate 13. The cold end connection plate 1 and the hot end connection plate 13 are connected by three support rods 9, 10, 11 to form the main skeleton structure of the thermal switch. The left side plate 2 and the right side plate 12 are fixed on the side of the cold end connection plate 1 by screws, and are used to install the upper slide bar 4, the lower bar 5, the first electromagnet 6, and the second electromagnet 7. The upper and lower sides of the thermal bridge 3 have holes for the upper slide bar 4 and the lower slide bar 5 to pass...

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Abstract

The invention discloses an electromagnetic clutch active control contact type thermal switch device for a low temperature system. The electromagnetic clutch active control contact type thermal switch device comprises a cold end connecting plate, a left side plate, a thermal bridge, an upper sliding rod, a lower sliding rod, a first electromagnet, a second electromagnet, electromagnetic pure iron, a support rod, a right side plate and a hot end connecting plate. Whether the thermal bridge is in contact with thermally conductive blocks of the cold and hot end connecting plates or not corresponds to the on / off state of the thermal switch. The electromagnetic clutch active control contact type thermal switch device of the invention has the technical advantages of freely controllable on-off, fast response, large switching ratio, wide controllable temperature range, simple structure, easy operation and the like, and can be widely applied in the technical fields of low temperature physics research, cryogenic temperature calibration, space refrigeration and so forth.

Description

technical field [0001] The invention relates to an electromagnetic clutch active control contact type thermal switch device for low temperature systems, in particular to a device that uses electromagnets to realize thermal circuit on and off working at low temperature, and can be widely used in low temperature refrigeration systems, low temperature Temperature calibration system and aerospace thermal control technology, etc. Background technique [0002] Just like the clutch of the power output of the car, in addition to the continuously adjustable cooling output in the low-temperature refrigeration system, on-off control of the cooling transmission is also required in many occasions, and this function is realized by a thermal switch. For example, a low-temperature system that needs to achieve temperature control in an ultra-wide temperature range is designed for a -250°C cryogenic temperature range, but it is also required to be able to provide cooling capacity at a tempera...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H3/28H01H3/56
CPCH01H3/28H01H3/56
Inventor 黄永华李畏王如竹
Owner SHANGHAI JIAO TONG UNIV
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