Dial-mode temperature controller that facilitates changing of temperature range

• US 8,789,764 B2
• Filed: 09/08/2009
• Issued: 07/29/2014
• Est. Priority Date: 09/08/2008
• Status: Expired due to Fees

• Current Assignee: Autonics Corporation
• Original Assignee: Autonics Corporation
• Inventors: Park, Hwan-Ki
• Primary Examiner(s): Jiang, Chen Wen
• Application Number:
  US12/936,201
• Publication Number:
  US 20110046756A1
• Time in Patent Office: 1,785 Days
• Field of Search: 236/94, 236/91.D, 700/90, 337/82, 337/347
• US Class Current: 236/91.D
• CPC Class Codes: G05D 23/19 characterised by the use of electric means G05D23/1393 takes precedence
• CPC Class Codes: H01H 19/04 Cases; Covers
• CPC Class Codes: H01H 27/10 Switch operated by setting members according to a single predetermined combination out of several possible settings
• CPC Class Codes: H05K 7/1481 User interface, e.g. status displays; Programming interface, e.g. connector for computer programming; Monitoring

Abstract

The present invention relates to a dial type temperature controller easily changing a temperature range that is provided with a selector for changing temperature ranges and indication panels for selected corresponding ranges and allows a user to easily change the temperature range without an error, when changing the temperature range and the indication panel, and also stops control output with a dial of the temperature.

Claims

1. A dial type temperature controller, comprising:

a selector that is electrically connected to a front of a PCB module with various electronic circuits for temperature control and sets different temperature ranges by turning step by step;

a selector handle that is combined with the selector to turn the selector and has a protrusion on one side to discriminate the temperature ranges;

a case inside which accommodates the PCB module and the selector and which is combined with the selector handle through one side;

a plurality of indication panels, each having a protrusion insertion hole at a different position corresponding to the protrusion, for each temperature range set by turning the selector handle, and each is marked with temperature graduations corresponding to the temperature ranges selected by the selector;

a dial that is detachably inserted to be fitted on a temperature control switch that is turned in electric connection with the front of the PCB module to set temperature within a temperature range selected by the selector; and

a microcomputer that is programmed to convert a temperature signal corresponding to an amount of turn of the dial into a temperature signal calculated in proportion to a temperature range selected by the selector and that recognizes the converted signal.

2. The dial type temperature controller according to claim 1, wherein each indication panel is marked with a control output stop graduation OFF at a lower limit of the turn of the dial, and the dial type temperature controller further has a switch function that stops control output by using the microcomputer, when the dial is positioned at the control output stop graduation OFF.