Title:
COOLING STOREROOM
Document Type and Number:
Japanese Patent JP3426504
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To set the heating temperature of a packing to the cooling temperature of a storage chamber.
SOLUTION: A heater control part is provided to control the heating value of a heater for heating a packing. In the normal operation mode wherein a storage chamber is held at a storage temperature T1 (-25°C), by decreasing the duty ratio of energizing the heater, the heating value of the heater is suppressed (W1), while in the quick operation mode wherein the storage chamber is held at a freezing temperature T2 (-40°C), the duty ratio is increased, thereby increasing the heating value of the heater (W2). In either operation mode, the packing is heated to an extent where dew does not form on the packing corresponding to the temperature in a storeroom, and the temperature of a heater plate is also maintained at a fixed level (Tp). In the case of the normal operation mode in particular, the temperature of the surface of the heater plate is prevented from rising excessively, allowing convenient handling in the case where a heat insulating door is opened. Moreover, the cooling load is reduced and the cooling efficiency is increased.
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Inventors:
Kazuyuki Kageyama
Application Number:
JP15330798A
Publication Date:
July 14, 2003
Filing Date:
June 02, 1998
Export Citation:
Assignee:
Hoshizaki Electric Co., Ltd.
International Classes:
F25D21/04; (IPC1-7): F25D21/04
Domestic Patent References:
| JP534047A | ||||
| JP518655A | ||||
| JP5240565A |
Attorney, Agent or Firm:
Kazuo Gero (1 person outside)
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