Title:
恒温維持装置。
Document Type and Number:
Japanese Patent JP4566052
Kind Code:
B2
Abstract:
A constant temperature controller inexpensive and easy to operate, yet capable of accurately controlling the temperature with significantly reduced heat energy consumption, is provided. An operation mode of a cooler is switched between an idling mode and a loaded mode, based on a difference in temperature between a first temperature sensor and a third temperature sensor. For switching the operation mode, cooling power of the cooler is adjusted by changing a frequency of an inverter driving a compressor. Under the loaded mode, the cooling power of the cooler is adjusted by an aperture of an electronic expansion valve such that a difference between a temperature of a second sensor and a target temperature of a heater becomes a constant value.
Inventors:
Kazushige Shimizu
Application Number:
JP2005110439A
Publication Date:
October 20, 2010
Filing Date:
April 07, 2005
Export Citation:
Assignee:
ATS Japan Co., Ltd.
International Classes:
F25D17/02; F25B1/00
Domestic Patent References:
| JP2004169933A | ||||
| JP2004353916A | ||||
| JP2001165058A | ||||
| JP2004198001A | ||||
| JP2004166A | ||||
| JP9089436A | ||||
| JP2004502918A |
Attorney, Agent or Firm:
Jun Kawashima