Title:
REFRIGERATION DEVICE
Document Type and Number:
Japanese Patent JP2022088110
Kind Code:
A
Abstract:
To provide a refrigeration device which can quickly cool a cooled object.SOLUTION: A refrigeration device comprises: a compressor 21; a first heat exchanger 23 for radiating the heat of a first thermal medium which is compressed by the compressor 21; a second heat exchanger 26 for exchanging heat between the first thermal medium and a second thermal medium which cools a cooled object; a first temperature sensor 32 for detecting a temperature of the second thermal medium at the second heat exchanger 26; and a control device 50 for controlling an operation frequency of the compressor 21. When a first condition that a rise temperature ΔT of the second thermal medium at the second heat exchanger 26 per prescribed time becomes equal to or lower than a first threshold Tth1 is satisfied, the control device 50 performs a first operation mode for changing the operation frequency at a first increase speed, and when a second condition that a temperature change ΔT of the second thermal medium at the second heat exchanger 26 per prescribed time exceeds the first threshold Tth1 is satisfied, the control device performs a second operation mode for changing the operation frequency at a second increase speed which is higher than the first increase speed.SELECTED DRAWING: Figure 5
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Inventors:
KONO SATOSHI
ONOZATO DAIKI
ONOZATO DAIKI
Application Number:
JP2020200370A
Publication Date:
June 14, 2022
Filing Date:
December 02, 2020
Export Citation:
Assignee:
DAIKIN IND LTD
International Classes:
F25B1/00; F25B49/02
Domestic Patent References:
| JP2017040396A | 2017-02-23 | |||
| JP2019173986A | 2019-10-10 | |||
| JP2017137044A | 2017-08-10 |
Attorney, Agent or Firm:
Patent Business Corporation Suncrest International Patent Office
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