JP2006349300A - Controller - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a controller for a heater of stable quality allowing high efficiency of inspection work. <P>SOLUTION: This controller is provided with a plurality of sheath heaters 7, 8, a mica heater 9, a thermistor 5 for detecting a room temperature, an operation part 3 for setting various operations, a display part 4 for displaying the operation setting in the operation part 3, a control part 2 for switching electrification patterns to the sheath heaters 7, 8 and the mica heater 9, based on the operation setting in the operation part 3 and the room temperature from the thermistor 5, to control a heating operation, and an operation switch 1 for turning on and off a commercial electric power source, and is constituted to be brought into a specific processing mode when the operation switch 1 is turned on while pushing a plurality of switches in the operation part 3 at the same time. An assembling situation such as defective electrification due to erroneous wiring or a defective component, visibility of a lamp and reception feeling of the switch is thereby confirmed efficiently without requiring the setting by a general user, with executing the specific processing mode in a production process, and the inspection work is thereby gets efficient. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a heater, and more particularly to a control device thereof.

Conventionally, this type of heater control device is programmed only in an operation mode that a general user uses as a normal heater. In other words, since the efficiency of the inspection process in the production process is not considered, the inspector is configured to check the display state and confirm the power supply to the load such as a heater in a normal operation mode (for example, , See Patent Document 1).
JP 10-073262 A

  However, in the above-described conventional configuration, in order to confirm all the displays in the production process, it is necessary to switch the display by pressing the key of the operation unit many times and to confirm by lighting the lamps and LEDs of the display unit.

  Also, settings changed by pressing keys on the operation unit for inspection work and various information during operation are stored in the non-volatile storage device, but the data is stored in the factory settings one by one. I had to start over.

  Furthermore, in order to check the energization of a load such as a heater, it was necessary to connect a special measuring instrument or measuring jig.

  The present invention solves such a conventional problem, and aims to improve the process quality in a production factory and, in addition, to increase the efficiency of inspection work.

  In order to solve the above-described conventional problems, a heater of the present invention includes a plurality of sheathed heaters for heating, a mica heater that radiates far-infrared radiation by making surface contact with a panel surface with a heater wire sandwiched between mica plates, , A thermistor for detecting the room temperature, an operation unit for performing various operation settings such as manual setting, automatic setting, timer setting, a display unit for displaying the operation setting in the operation unit, and the operation unit A control unit that controls heating operation by switching energization patterns to the sheathed heater and the mica heater according to an operation setting and a room temperature from the thermistor, and an operation switch that can directly turn on and off a commercial power supply, When the operation switch is turned on while simultaneously pressing the switches, the control unit is in a special processing mode.

  As a result, in order to switch to the special processing mode, a complicated operation with both hands of turning on the operation switch while simultaneously pressing a plurality of switches is required. It's hard to think. Therefore, there is no feeling of anxiety because there is no driving state different from the normal driving used by general users or display / operation specifications. In the production process, the special processing mode enables efficient checking of assembly conditions such as poor wiring due to incorrect wiring and defective parts, lamp visibility, and switch acceptance. Can provide a stable heater control device.

The heater control device of the present invention can improve the process quality in the production factory and increase the efficiency of the inspection work.

  A first invention includes a plurality of sheathed heaters for heating, a mica heater that radiates far-infrared radiation by contacting the panel surface with a heater wire between mica plates, a thermistor for detecting room temperature, and a manual An operation unit for performing various operation settings such as setting, automatic setting, and timer setting, a display unit for displaying the operation setting in the operation unit, the operation setting in the operation unit and the room temperature from the thermistor. A control unit that controls heating operation by switching an energization pattern to the heater and the mica heater, and an operation switch that can directly turn on and off a commercial power supply, and simultaneously pressing a plurality of switches of the operation unit, the operation switch When turned on, the control unit is in a special processing mode. Therefore, it is possible to reduce the possibility of setting by a general user or setting by an erroneous operation, etc., resulting in a driving state different from the normal driving used by a general user, display / operation specifications, and anxiety. Can reduce the possibility of giving. In the production process, the special processing mode is used to control heating heaters that can efficiently check assembly conditions such as poor power distribution due to miswiring or defective parts, lamp visibility and switch acceptance. Equipment can be provided.

  In the second invention, in particular, the heater of the first invention is configured such that when the control unit accepts the special processing mode, the display unit is fully lit for a certain period of time, so that wiring mistakes and parts inside the device can be achieved. Since the lamp that does not turn on due to a defect can be detected instantly, the efficiency of the inspection work can be improved.

  The third aspect of the invention relates to the heater of the first aspect of the invention or the second aspect of the invention in particular, and after the control unit accepts the special processing mode, it is predetermined in conjunction with energization / non-energization of the sheathed heater and the mica heater. By configuring the display unit to turn on / off the lamp, it is possible to instantaneously detect a heater that is not energized due to a wiring mistake or a component defect inside the device, thereby improving the efficiency of inspection work.

  The fourth aspect of the invention is particularly the heater of any one of the first to third aspects of the invention, and the control unit includes a non-volatile storage device for storing the setting contents in the operation unit and various information during operation. When the special processing mode is accepted, the control unit rewrites the storage content of the nonvolatile storage device to a preset initial value and sets the operation unit until the special processing mode is canceled. Even if there are changes in various information during operation, it is not necessary for the inspector to reset to the factory settings after the inspection is completed, so that the inspector does not need to reset each time. The quality can be improved and the efficiency of inspection work can be improved.

  5th invention is the structure which can cancel | release special processing mode only by OFF operation of an operation switch, after the control part receives special processing mode especially the heater of any one invention of 1st-4th invention Therefore, the inspection work can be made more efficient, and even if a general user sets it to the special processing mode, it can be easily released, so that the quality can be improved.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiment.

(Embodiment 1)
In FIG. 1, 1 is an operation switch, 2 is a control unit that controls heating operation, 3 is an operation unit, a manual key for switching the setting of manual operation, an automatic key for switching the setting of automatic operation, There is a timer key for setting the on timer.

Reference numeral 4 denotes a display unit, an LED for displaying manual operation that can be switched in three stages, an LED for displaying automatic operation that can be switched in five stages, and seven segments for displaying the time of an on-timer. There is a number display.

  5 is a room temperature thermistor for detecting the room temperature, 6 is a non-volatile storage device for storing the setting contents and various information during operation in the operation unit 3 disposed inside the control unit 2, The sheath heater 9 is a mica heater, and the heaters 7, 8 and 9 are connected to drive elements 10, 11 and 12 for ON / OFF, respectively. Each drive element 10, 11, 12 is controlled by an ON / OFF signal from the control unit 2.

  FIG. 2 shows a flowchart of the control device according to the first embodiment of the present invention.

  The operation and action of the heating machine configured as described above will be described below with reference to the flowchart of FIG.

  When the operation switch 1 is OFF, no power is supplied to the control unit 2, so nothing is done (No in ST11). When the operation switch 1 is turned on, ST11 proceeds to Yes. Usually, since the general user turns on only the operation switch 1, in ST12, the process proceeds to ST13 in order to execute normal operation processing.

  And heating operation control is performed based on the operation information memorize | stored in the non-volatile memory | storage device 6, or based on the operation mode changed and set by the user with the manual key of the operation part 3, or the automatic key.

  If the timer key and the automatic key are simultaneously pressed in ST12, the process proceeds to ST15 in order to execute the special processing mode. Only when the operation switch 1 is switched from OFF to ON, the simultaneous pressing of the timer key and the automatic key of the operation unit 3 is determined. In addition, by lowering the possibility of setting by mistaken operation, the possibility of giving anxiety will be reduced without the general user displaying a different display or driving in normal use. Can improve the quality.

  In the production process, the special processing mode enables efficient confirmation of assembly conditions such as power distribution failure due to miswiring or defective parts, lamp visibility, and switch reception feeling. Inspection equipment can be made more efficient because it can be inspected by the control device of the heater without connecting any measuring instruments or measuring jigs.

  Next, in ST15, a timer for turning on all the displays on the display unit 4 is set and turned on until the timer overflows (ST16, 17), so that the inspector can determine that the special processing mode has been accepted. Since all the lamps and LEDs are turned on for a certain period of time, if there are lamps or LEDs that do not turn on due to defective wiring or defective parts, it is possible to instantly detect them, improving the quality and improving the efficiency of the inspection work.

  Next, in ST18, an instruction to write initial values at the time of shipment from the factory to the nonvolatile memory device 6 is given. And by setting to the special processing mode, you can always set the same setting value (for example, automatic “3”) and ship it to the market. You can improve the quality without giving distrust.

Next, in ST19, the write disapproval flag to the nonvolatile storage device 6 is set to “1”. As described above, by accepting the special processing mode, it is possible to always write the factory setting value to the nonvolatile storage device 6 and until the special processing mode is canceled (the operation switch is turned on in ST29). Since the writing to the non-volatile memory device 6 is not permitted until the inspector changes the setting by pressing the automatic key or the manual key of the operation unit 3 to confirm the receipt of the key. Since the data is not written in the storage device 6, it is not necessary for the inspector to re-adjust the initial value at the time of shipment from the factory before the operation switch 1 is turned off. The quality can be stabilized.

  Next, ST20 to ST28 are sequences for lighting the LEDs respectively corresponding to the sheathed heater 7, the sheathed heater 8, and the mica heater 9. That is, the upper horizontal bar segment of the 7-segment LED disposed on the display unit 4 is turned on / off in response to ON / OFF of the sheathed heater 7 (ST20 to ST22).

  Corresponding to ON / OFF of the sheathed heater 8, the middle horizontal bar segment of the 7-segment LED disposed on the display unit 4 is turned on / off (ST23 to ST25). Corresponding to ON / OFF of the mica heater 9, the lower horizontal bar segment of the 7-segment LED disposed on the display unit 4 is turned on / off (ST26 to ST28). Since the inspector can check which heater is energized on the display unit 4, it is possible to detect the case where the heater cannot be energized due to wiring mistakes or defective parts without preparing special equipment, thus making inspection work more efficient it can.

  In ST29, when the operation switch is turned off, the process returns to the first ST11. After accepting the special processing mode, the special processing mode can be canceled only by turning off the operation switch. Therefore, the inspection work can be made more efficient.

  As described above, the control device for a heater according to the present invention can facilitate the discovery of defective products in the production process and improve the efficiency of inspection work. Therefore, an oil-fired heater and a gas-fired heater, The present invention can also be applied to a control device for an air conditioner such as an air conditioner.

The block diagram of the heater in Embodiment 1 of this invention The flowchart of the control apparatus in Embodiment 1 of this invention

Explanation of symbols

2 Control unit 3 Operation unit 4 Display unit 5 Room temperature thermistor 6 Non-volatile storage device 7, 8 Seed heater 9 Mica heater

Claims (5)

Multiple sheathed heaters for warming, a mica heater that radiates far infrared rays by contacting the panel surface with a heater wire sandwiched between mica plates, a thermistor for detecting room temperature, manual setting and automatic setting, timer An operation unit for performing various operation settings such as settings, a display unit for displaying the operation setting in the operation unit, the operation setting in the operation unit and the room temperature from the thermistor to the sheathed heater and the mica heater A control unit that controls the heating operation by switching the energization pattern and an operation switch that can directly turn on and off the commercial power supply, and when the operation switch is turned on while simultaneously pressing a plurality of switches of the operation unit, the control The heater is configured to be in a special processing mode. The heater according to claim 1, wherein the control unit is configured to turn on the display unit for a certain period of time when the special processing mode is received. The control unit is configured to operate by turning on / off a predetermined lamp of the display unit in conjunction with energization / non-energization of the sheathed heater and the mica heater after receiving the special processing mode. Or the heating machine of 2. The control unit incorporates a nonvolatile storage device for storing the setting contents in the operation unit and various information during operation, and the control unit stores the nonvolatile storage when receiving a special processing mode. The stored contents of the device are rewritten to the preset initial values, and the settings are changed by the operation unit or various information during operation is stored in the nonvolatile storage device until the special processing mode is canceled. The heater according to claim 1, which is configured not to be used. The heater according to any one of claims 1 to 4, wherein the control unit is configured to be able to cancel the special processing mode only by turning off the operation switch after receiving the special processing mode.

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