JP4018945B2 - Electrical equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a device capable of controlling operation by reducing the number of function switches for selecting various operation modes in a heating device such as a liquid fuel combustion apparatus for burning liquid fuel such as kerosene, in particular, in an electric device.
[0002]
[Prior art]
Conventionally, in a heating device such as a liquid fuel combustion device, if the functions increase, a large number of switches and display lamps are disposed in the operation display unit, and thus the switch operation is complicated. .
[0003]
Conventionally, in order to solve this problem, Japanese Patent Application Laid-Open No. 7-326263 discloses a plurality of switches in which one of the rubber contact groups below the key functions when moved with a single key with a light touch in the left-right direction. A structure with functionality is disclosed. Also disclosed is a technique for reducing the number of switches by providing other functions to a switch having a switching function.
[0004]
Further, Japanese Patent Application Laid-Open No. 10-236138 discloses a vehicle air conditioning operation device in which settings are sequentially switched each time a mode knob is pushed, and the display is also switched.
[0005]
[Problems to be solved by the invention]
By the way, in the conventional switch structure described above, different functions can be selected by pressing a plurality of buttons or switches. However, this operation requires pressing the switch every time the function is switched or the user must operate the direction in which the switch is pressed. The operation was complicated.
[0006]
In addition, as the function of the device increases, the number of buttons and switches increases, and the operating section becomes larger and the design becomes worse, and the number of buttons and switches increases and the shape becomes smaller, so the usability is poor. There was a problem.
[0007]
The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide an electric device such as a liquid fuel combustion apparatus that can improve the usability by reducing the number of buttons and switches and increasing the shape.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, in the present invention, a single energy saving switch for setting an operation state, a combustion section for vaporizing and burning liquid fuel with a vaporizer, and a control means capable of executing a plurality of operation modes are provided. The control means includes a combustion operation mode in which liquid fuel is vaporized and combusted in a vaporizer, an energy saving operation mode in which operation is performed by lowering the combustion capacity, and the inside of the vaporizer is baked to remove tar content. In the liquid fuel combustion apparatus that can be selected and executed from the cleaning operation mode, the control means sets an energy saving operation mode that lowers the combustion capacity when a signal is input from the energy saving switch during the combustion operation. When a signal indicating that the energy saving switch has been pressed for a predetermined time or more is input while the operation of the apparatus is stopped, the inside of the vaporizer is baked to remove tar content. Wherein the selecting and executing Ningu operation mode.
[0009]
According to the above configuration, the energy saving switch can execute at least two operation modes of the energy saving operation mode and the cleaning operation mode depending on the operation state (operation or stop), and the area of the limited operation unit Within this range, the shape of the switch can be increased, and conversely, by reducing the number of switches, the area of the operation unit can be reduced and design restrictions are eliminated. If the energy saving switch is not pressed for a predetermined time or more while the operation of the apparatus is stopped, the cleaning operation mode is not executed, so that an erroneous operation can be prevented.
[0011]
Further, the above-described mode change can notify the user of the operation mode to be executed by displaying the operation mode to be executed on the display unit. In this case, the display unit displays a single function or a plurality of functions (for example, the first mode is turned on and the second mode is blinked) or a plurality of single function displays are provided (for each function mode). It is also possible to provide a plurality of displays).
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a front perspective view of a liquid fuel combustion apparatus according to an embodiment of the present invention, and FIG. 2 is a rear perspective view of the same. In the figure, 1 is a device main body, 2 is a hot air outlet to which a louver 3 for guiding hot air is attached, 4 is an operation display section provided at the upper part of the front surface, 5 is a fuel tank having a main body lid, and 6 is a rear surface. A convection fan attached to the hot air inlet 7 through a fan guard 8, 9 is a thermistor for detecting the room temperature, 10 is a handle of the oil tank, 11 is an oil meter of the oil tank, and 12 is a plug.
[0017]
The exterior body of the apparatus main body 1 is configured by fixing a front panel 13 covering the front surface, an upper surface plate 14 covering the upper surface, and a rear surface plate 15 covering the side surfaces and the rear surface on a placing table 16.
[0018]
FIG. 3 is a schematic view of the fuel path. In FIG. 3, 5 is a fuel tank that can be removed from the main body, 21 is an electromagnetic pump that sends fuel from the fuel tank, 22 is a vaporizer that heats the fuel from the electromagnetic pump into vaporized gas, and 23 is vaporized gas from the vaporizer. Is a burner that jets from the nozzle, mixes with combustion air, and burns. Reference numeral 24 denotes a first (oil feeding side) connecting means for connecting the fuel tank and the combustion section when the fuel tank is mounted on the main body. From the tank side connection joint 24a and the connection joint receiver 24b on the combustion section side. Composed. Reference numeral 25 denotes a second (return oil side) connecting means for connecting the oil tank and the vaporizer and returning the unburned gas to the oil tank 5 when the oil tank is attached to the main body, and the tank side connection joint 25a. And a connection joint receiver 25b on the combustion part side.
[0019]
The oil supply side connecting means 24 is provided with an air valve 26 for sending air into the path. Further, a pipe 27 is provided between the first connecting means 24 and the electromagnetic pump 21 of the fuel tank 5, a pipe 28 is provided between the electromagnetic pump 21 and the vaporizer 22, and a return oil is provided between the vaporizer 22 and the second connecting means 25. They are connected by a pipe 29.
[0020]
In the fuel path, the fuel in the fuel tank 5 is sent to the carburetor 22 by the electromagnetic pump 21, and the fuel becomes a gas from the liquid inside the carburetor heated by the carburetor heater (not shown). It is sent to the burner 23 and burns in the burner 23.
[0021]
FIG. 4 is a schematic diagram of the operation display unit. As shown in the figure, the operation display unit 4 is provided with a liquid crystal display unit 32 for displaying temperature, ventilation, oil amount monitor, and various setting buttons (switches) 33 to 38. The liquid crystal display unit 32 displays temperature 40, ventilation 41, setting 43, oil amount monitor 42, and the like.
[0022]
As the various setting buttons (switches), an operation button 33, a three-hour extension button 34, a temperature / timer setting button 35, a timer button 36, an energy saving button 37, and a child lock button 38 are arranged.
[0023]
The oil amount monitor 42 is attached with a display sheet for picture display and light source display, and a lamp substrate (not shown) on which an LED lamp (not shown) is mounted is mounted on one device body side.
[0024]
The operation button 33 is a button to be pressed when ignition or extinguishing. The 3 hour extension button 34 is a button for continuing the operation for 3 hours when pressed to extend the operation. The temperature / timer setting button 34 is a button for raising and lowering the temperature and for returning and advancing the clock and timer time settings when setting the temperature.
[0025]
When the timer button 36 is kept pressed for 1 second or more during operation, the timer operation starts. When the timer button 36 is pressed while the operation is stopped, the timer is set. A display lamp 44 is provided on the upper side of the timer button 36, and is lit during the timer operation and blinks when the timer operation ends. It goes out when the clock is set.
[0026]
When the energy saving button 37 is pressed during operation, the energy saving operation 37 is started or canceled. Further, when the energy saving button 37 is continuously pressed for 1 second or more during the operation stop, the cleaning operation mode of the vaporizer 22 is set. A display lamp 45 is provided above the energy saving button 37 and is lit during the energy saving operation and is turned off during the normal operation and the cleaning operation. The child lock button 38 is a push button that prohibits a child from operating carelessly.
[0027]
FIG. 5 is a control block diagram for performing operation control by the button operation. In FIG. 5, components not directly related to the present invention are not shown. The control unit 50 includes a general microcomputer, and includes a CPU, a ROM, and a RAM. The control unit 50 controls input components from the buttons (switches) of the operation display unit 4 to control output side components. .
[0028]
An energy saving button 37, a timer button 36, various buttons 33 to 35, 38 are connected to the input side of the control unit 50, and an oil amount detecting means 51 that detects the oil amount of the fuel tank is also connected. The electromagnetic pump 21 is connected to the output side of the control unit 50 via a pump drive circuit 52, the convection fan 6 is connected via a motor drive circuit 53, and the air valve 26 and vaporization are connected via a valve drive circuit 54. A solenoid valve 55 for opening and closing the nozzle of the container 22 is connected. A burner ignition heater 57 and a carburetor heater 58 are connected via a heater drive circuit 56. Further, the operation display unit 4 is connected via the display drive circuit 59. In addition, a timer means 60 is connected to the control unit 50 so that it can measure time such as timer operation.
[0029]
The control unit 50 can control the drive of the electromagnetic pump 21 and the like by controlling the drive circuits 52 to 54, 56, and 59 based on the signal on the input side. The main operation control according to the present invention is as follows.
[0030]
That is, the control unit 50 determines not only the input signal from the button (switch) but also the current driving state stored in a memory such as a RAM, and determines the driving mode based on the AND condition of both. ing.
[0031]
Specifically, the control unit 50 inputs a signal when the energy saving button (switch) 37 is pressed, selects and executes the energy saving operation mode for reducing the combustion capacity when the current operation is in progress, and stops the current operation. When in the middle, the cleaning operation mode is selected and executed. And the control part 50 lights the display lamp 45 at the time of an energy-saving driving | operation, and notifies a driving mode to a user.
[0032]
The operation mode includes a normal combustion operation mode in which liquid fuel is vaporized and combusted by the vaporizer 22, an energy saving operation mode in which the amount of oil fed from the electromagnetic pump 21 is reduced and the combustion capacity is lowered, and vaporization is performed. Although there is a cleaning operation mode in which the tar content remaining after baking in the chamber is removed, the control unit 50 selects the operation mode by an input signal from the energy saving button 37.
[0033]
The energy-saving operation is a mode in which, for example, the oil pump 21 is operated with the oil supply amount lower than that during normal operation to lower the combustion capacity. In the cleaning operation, the air valve 26 is opened to shut off the fuel in the fuel tank from being sent to the vaporizer even when the electromagnetic pump 21 is driven, and the solenoid valve is driven to close the vaporizer nozzle. Further, this is an operation mode in which the vaporizer heater 58 is further driven to remove tar accumulated in the vaporizer.
[0034]
Further, when the timer button 36 is pressed, the control unit 50 selects and executes the timer operation mode when currently operating, and selects and executes the time setting mode when currently stopped. I am doing so. And the control part 50 lights the display lamp 44 at the time of timer operation mode, and notifies a user.
[0035]
The operation in the above configuration will be described. When the operation button 33 is pressed after the fuel tank supplied with fuel is mounted on the device body, the temperature of the carburetor rises, the fuel sent from the fuel tank is vaporized, sent to the burner and burned, Is blown into the room. At this time, all of the operation lamp and the oil amount indicator lamp are lit, and the digital display indicates the room temperature.
[0036]
When the timer button 36 is continuously pressed for 1 second or more during operation, the timer lamp 44 is lit and the timer operation is started. On the other hand, when the button is pressed while the operation is stopped, the watch is set to the clock setting mode, the digital display changes from flashing to the set time, and the timer operation time is set using the set button.
[0037]
In addition, when the energy saving button 37 is pressed during operation, the energy saving operation is started or canceled, but when the operation is stopped for 1 second or longer, the vaporizer cleaning operation mode is set, and the vaporizer temperature is raised. A cleaning operation is performed to remove impurities accumulated inside the vaporizer.
[0038]
The above operation will be described in detail with reference to flowcharts shown in FIGS. FIG. 6 is an operation control flowchart when the energy saving button is pressed. As shown in FIG. 6, it is first determined whether or not an energy saving switch (button) has been pressed (S100). If the energy saving switch 37 has not been pressed, the process is terminated. If the energy saving switch 37 has been pressed, it is next determined whether or not the vehicle is currently operating (S101).
[0039]
If it is currently operating in S101, it is next determined whether or not it is in energy saving operation (S102). If it is not in energy saving operation, it is determined that the energy saving switch 37 was turned on during normal operation and energy saving operation is started. (S104). If the energy saving switch 37 is pressed during the energy saving operation in S102, it is determined that the energy saving operation has been released, and the operation is switched to the normal operation in S104.
[0040]
If the device is stopped when the energy saving switch 37 is pressed in S100 (S101: NO), the process proceeds to S105, where it is determined whether or not the energy saving switch 37 has been pressed for 1 second or more. If the button is pressed, the cleaning operation command is determined and the cleaning operation is executed. If it is not pressed for more than 1 second, it is determined that the operation is wrong and the process ends.
[0041]
As described above, when the energy saving switch 37 is pressed, the control unit 50 selects and executes the operation mode in consideration of the grasped current operation state (in operation or in stop).
[0042]
FIG. 7 is an operation control flowchart when the timer button (switch) is pressed. As shown in FIG. 7, first, it is determined whether or not the timer switch 36 is turned on (S110). If the timer switch 36 has not been pressed, the process is terminated, and if the timer switch has been pressed, it is next determined whether or not the vehicle is currently operating (S111).
[0043]
If it is currently operating in S111, it is next determined whether or not the timer switch 36 has been pressed for 1 second or longer (S112). Is started (S113). If it is stopped in S111, it is determined that the time setting mode is set, and the timer operation time is set.
[0044]
On the other hand, if the timer switch 36 has not been pressed for 1 second or longer in S112, it is determined that the operation is erroneous and normal operation is continued (S115).
[0045]
As described above, the control unit 50 can determine the current operation state and change the function mode with an input signal of one button or switch, and therefore, the number of buttons or switches can be reduced. Therefore, the shape of the button or switch can be increased, and usability is improved. In addition, by reducing the number of buttons or switches, the area of the operation unit is reduced, and design restrictions are eliminated.
[0046]
The present invention is not limited to the above embodiment, and it goes without saying that many modifications and changes can be made within the scope of the present invention. For example, in the above-described embodiment, the operation control of the liquid fuel combustion apparatus has been described. However, the same operation control can be performed not only with other heating devices and further with other electrical devices.
[0047]
【The invention's effect】
As is clear from the above description, according to the present invention, the operation mode can be switched by using the current driving situation as information, so that the number of mode switching switches can be reduced, and the limited operation is performed. The shape of buttons and switches can be increased within the area of the area, improving usability. Further, by reducing the number of switches, the area of the operation unit is reduced, and design restrictions are eliminated. Different function modes can be selected according to the time (predetermined time) when the switch is pressed down in the operation state of the device (during operation / stop).
[Brief description of the drawings]
1 is a front perspective view of a liquid fuel combustion apparatus according to an embodiment of the present invention. FIG. 2 is a rear perspective view of FIG. 1. FIG. 3 is a schematic view of a fuel path in FIG. Schematic diagram of operation display unit 1 [FIG. 5] Operation control block diagram of FIG. 1 [FIG. 6] Operation control flowchart when the energy saving switch of the operation unit is pressed [FIG. 7] Timer switch of the operation unit is pressed Operation control flow chart [Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Apparatus body 2 Hot air blower outlet 3 Louver 4 Operation display part 5 Oil supply tank 6 Convection fan 7 Warm air intake 9 Room temperature detection thermistor 10 Handle 11 Oil amount meter 12 Insertion plug 13 Front panel 14 Top plate 15 Back plate 16 Place Table 21 Electromagnetic pump 22 Vaporizer 23 Burner 24 First connection means 25 Second connection means 32 Liquid crystal display section 33 Operation button 34 Three-hour extension button 35 Temperature / timer setting button 36 Timer button 37 Energy saving button (switch)
38 Child lock button 50 Control section

Claims (1)

A single energy saving switch for setting the operating state, a combustion section for vaporizing and burning liquid fuel with a vaporizer, and a control means capable of executing a plurality of operation modes,
The control means includes a combustion operation mode in which liquid fuel is vaporized and burned in a vaporizer, an energy saving operation mode in which operation is performed with a reduced combustion capacity, and a cleaning operation in which the vaporizer is baked to remove tar content. In the liquid fuel combustion apparatus that can be selected and executed from the mode,
When a signal is input from the energy saving switch during the combustion operation, the control means selects and executes the energy saving operation mode for reducing the combustion capacity, and sets the energy saving switch to a predetermined value while the operation of the apparatus is stopped. A liquid fuel combustion apparatus characterized by selecting and executing a cleaning operation mode in which the inside of the vaporizer is baked to remove tar content when a signal indicating that the pressure has been pushed for more than a time is input.

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