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Cooling storage control device and control method

A cooling control and control device technology, which is applied in the field of cooling storage control devices, can solve problems such as poor cooling, failure to improve the capacity of the evaporator 16, and time-consuming problems, and achieve the effect of maintaining the temperature in the storage room

Active Publication Date: 2018-07-13
SAGINOMIYA SEISAKUSHO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0032] In this state, even if the valve opening degree of the expansion valve 14 is increased, only the return amount of the liquid increases, but the degree of superheat does not increase, and the capacity of the evaporator 16 cannot be improved, resulting in poor cooling.
[0033] In the case of poor cooling, it takes time to return to the normal state even if the operation of the control device 22 is continued.
In addition, when it cannot return to the normal state, the control device 22 has to be reset.

Method used

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  • Cooling storage control device and control method
  • Cooling storage control device and control method
  • Cooling storage control device and control method

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Embodiment Construction

[0051] Hereinafter, embodiments (examples) of the present invention will be described in more detail based on the drawings.

[0052] In addition, the structure of the counter 30 provided with the control device 22 in this Example is basically the same structure as the above-mentioned conventional counter 30.

[0053] figure 2 It is a schematic structural diagram for explaining the structure of the control apparatus 22 of this embodiment.

[0054] The control device 22 includes a microcomputer 50 for performing arithmetic processing of PID control, etc., a power input terminal 52 for receiving operating power, a temperature sensor input terminal 54 for inputting temperature signals from the temperature sensors 18 , 20 , 40 , and 42 , And a control output terminal 56 for outputting control signals to the expansion valve 14 , the fan 38 , the defrosting heater 24 , and the lighting 26 .

[0055] In addition, for example, a communication terminal 58 and a display unit 60 can al...

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Abstract

The present invention provides a cooling storage control device and a control method capable of quickly recovering from a cooling failure state by automatically switching a control method when the cooling storage falls into cooling failure. It is comprised so that when the cooling failure of a cooling room is detected, the cooling control method is switched to another cooling control method, and the inside of a room is cooled.

Description

technical field [0001] The present invention relates to a control device and a control method for a cooling store that can detect a cooling failure when it occurs in a cooling store such as a freezer counter or a refrigerated counter installed in a store, and can quickly restore the state. Background technique [0002] For example, in stores such as supermarkets and convenience stores, counters such as freezer counters and refrigerated counters for displaying products in a frozen or refrigerated state are used. [0003] Such as figure 1 As shown, such a counter 30 has a display rack 32 for displaying goods, an air outlet 34 for discharging cold air to the display rack, and an intake port with a fan 38 for sucking air from the display rack and circulating the sucked air in the counter 30 36. [0004] In addition, in the counter 30, a general refrigerating cycle is used, and it is equipped with: a pipe 12 through which refrigerant flows; and the evaporator 16 which absorbs ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B41/04F25B41/06F25B49/00F25B41/20F25B41/31
Inventor 木内信行萩坂悠树松野博和
Owner SAGINOMIYA SEISAKUSHO INC