Title:
TEMPERATURE CONTROL DEVICE USING MULTI-STAGE REFRIGERATION CYCLE AND METHOD FOR CONTROLLING TEMPERATURE USING SAME
Document Type and Number:
WIPO Patent Application WO/2022/025443
Kind Code:
A1
Abstract:
Provided is a temperature control device capable of controlling an object to be cooled at a set temperature in response to the entire control temperature range even when a temperature control range of the object to be cooled is wide. The temperature control device according to the present invention comprises at least a high temperature side refrigeration cycle 21a and a low temperature side refrigeration cycle 21b. The high temperature side refrigeration cycle and the low temperature side refrigeration cycle each have a circulation circuit (3) including a compressor (4), a condenser (5), an expansion valve (6), and an evaporator (7) arranged therein to circulate a refrigerant, wherein: the condensation of a refrigerant at the low temperature side refrigeration cycle is performed by a refrigerant of the high temperature side refrigeration cycle; an inverter-controllable compressor is used as a compressor of the device; an electronic expansion valve is used as an expansion valve of the device; the set temperature of a circulation liquid is divided into several parts in advance; according to each region, an operation frequency of the compressor and an open degree of the electronic expansion valve are parameterized to be set; and the operation frequency of the compressor and the open degree of the electronic expansion valve are automatically controlled on the basis of a parameter according to the set temperature of the circulation liquid.
Inventors:
TANIGUCHI KEIJI (JP)
KIM HAERAN (KR)
KIM HAERAN (KR)
Application Number:
PCT/KR2021/008002
Publication Date:
February 03, 2022
Filing Date:
June 25, 2021
Export Citation:
Assignee:
TEMNEST INC (KR)
TANIGUCHI KEIJI (JP)
TANIGUCHI KEIJI (JP)
International Classes:
F25B7/00; F25B49/02; H01L21/67
Foreign References:
| KR20140128695A | 2014-11-06 | |||
| JP2012167902A | 2012-09-06 | |||
| KR101625756B1 | 2016-06-13 | |||
| KR101289831B1 | 2013-07-24 | |||
| US20140083124A1 | 2014-03-27 |
Attorney, Agent or Firm:
LEE, Cheol Hee (KR)
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