Temperature controller for show cabinet

A temperature control device and temperature control technology, which are used in household refrigeration devices, display cabinets, household refrigerators, etc., can solve problems such as increased cost and weakened noise, achieve high noise tolerance, and prevent false display. Effect

Inactive Publication Date: 2008-10-29
FUJIKOKI MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, if the number of wires is large, the cost will increase accordingly
In addition, it will also be weakened in terms of noise

Method used

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  • Temperature controller for show cabinet
  • Temperature controller for show cabinet
  • Temperature controller for show cabinet

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0048] Next, the showcase temperature control device of the present invention will be described with reference to the drawings.

[0049] Fig. 1 is a block diagram illustrating an outline of the circuit composition when the temperature control device for showcases of the present invention is applied to freezing / refrigerating showcases.

[0050] The temperature control device of the showcase of this embodiment is comprised from the temperature control part 1, the temperature display part 3, and the lead wire 5 which is the signal line which connects them.

[0051] The temperature control unit 1 is provided, for example, in a storage room located at the lower part of the showcase. The temperature control unit 1 compares the cabinet temperature detected by the thermistor 7 installed in the showcase with the set temperature, and controls the compressor 9 installed in the storage room to control the cabinet temperature of the showcase.

[0052] The temperature control unit 1 includ...

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PUM

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Abstract

A first microcomputer 11 of the temperature control part 1 outputs serial data having a minus sign bit expressing a positive or negative sign, a first display data string expressing a figure in the ten's place, a predetermined first fixed data string, a second display data string expressing a figure in the one's place, and a predetermined second fixed data string. A second microcomputer 31 of the temperature display part 3 detects the first fixed data string and the second fixed data string from the serial data outputted from the temperature control part 1, detects the minus sign bit, the first display data string and the second display data string according to the array of the serial data, and displays the interior temperature in a display circuit 32.

Description

technical field [0001] The invention relates to a temperature control device for a display cabinet, which includes a temperature control part and a temperature display part connected to the temperature control device through a signal line; A temperature control device for showcases that communicates from the temperature control unit to the temperature display unit using a signal line for serial data. Background technique [0002] In the control of, for example, frozen / refrigerated showcases where food products are displayed for sale, temperature control devices may be used. The temperature control device is composed of the following parts: the temperature control part that detects the temperature inside the showcase, controls the compressor according to the detected temperature and the set temperature, and the temperature display part that displays the temperature inside the cabinet and the operating status. Usually, the temperature control part is installed in the storage ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25D29/00F25D11/00A47F3/04F25D23/00
Inventor 小川善朗
Owner FUJIKOKI MFG CO LTD
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