JPH08338630A - Time display device of combustion machine - Google Patents

Abstract

PURPOSE: To provide a time display device of a combustion machine in which the time of a timer and a present time can be clearly displayed by displaying the time of a timer for operating the combustion machine at an arbitrary set time and the present time on a liquid crystal display device simultaneously and in an analog manner. CONSTITUTION: A present time and the time of a timer for starting the operation of a combustion machine at an arbitrary time are displayed on a single time display device 20. The time display device of the combustion machine, is provided, which comprises liquid crystal display means having a plurality of display elements arranged at pitches of equal angles on a concentric circle and display control means 34 for displaying the present time and the time of the timer on the liquid crystal display means simultaneously and in an analog manner.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a time display device for a combustor which is used in a combustor such as an oil combustor, a gas combustor or the like and displays the time.

[0002]

2. Description of the Related Art Conventionally, a hot air heater such as an oil fan heater is well known as an oil combustor of this kind, and this hot air heater is set at a time preset by the user (this is called a timer time). When it became, it had a timer function to automatically start the operation of the heater (ie combustion). In particular, as a display method for a warm air heater in which both the timer time and the current time can be displayed on the same display device, there is a display method disclosed in, for example, Japanese Patent Application Laid-Open No. 2-238249. According to this, the time and temperature at the time of ignition can be displayed. In this hot air heater, a liquid crystal display in which a plurality of 7-segment numeric display elements are arranged in parallel is generally used as a temperature and time display means. However, there is no liquid crystal display device that displays the time in an analog manner like an analog clock.

Further, there is a liquid crystal timepiece device which uses a liquid crystal to display time in an analog manner like an analog timepiece.
In this timepiece device, 60 display elements each consisting of a short hand for indicating the hour, a minute hand for indicating the minute, and a fine hand for indicating the second are arranged at equal angular intervals, and 60 pieces each are prepared to indicate the time. ing. Some needles have different thicknesses and lengths so that the time can be read even if the needles overlap each other.

[0004]

According to the technique disclosed in the above publication, most of the liquid crystal display devices display either temperature or time when displaying temperature and time. The display requires at least four numeric display elements to represent the hour and minute. However, there is a problem that the current time and the timer time (set time) cannot be displayed at the same time, and a switching operation for switching the display state must be performed in order to know the timer time. If eight numerical display elements were prepared, it would be possible to display both times at the same time, but the display would become larger and this time the display and hence the operating unit would become larger, and the time could be known depending on the amount of light and the viewing angle. There was a problem that became difficult.

Further, in the above-mentioned liquid crystal timepiece device, 180 display elements forming the display pattern must be prepared, and the control for switching the display pattern becomes complicated, while the digital liquid crystal display is used. There was a problem that it was more expensive than the device.

Therefore, in the present invention, firstly, the timer time for operating the combustor at an arbitrary set time and the current time are simultaneously and analogically displayed on the liquid crystal display device to display both times in an easy-to-understand manner. An object is to provide a time display device for a combustor.

Secondly, when displaying the time in an analog manner, the time display device of the combustor is provided in which the number of liquid crystal display elements is made smaller than that of the conventional liquid crystal timepiece device and the increase in the size of the display unit is suppressed. The purpose is to

Thirdly, it is an object of the present invention to provide a time display device for a combustor capable of distinguishing the present time from the timer time even when the liquid crystal display elements to be turned on or blink overlap with each other according to the time.

[0009]

According to another aspect of the present invention, there is provided a time display device for a combustor, wherein a current time and a timer time for starting the operation of the combustor which can be arbitrarily set are set as a single time. Which is displayed on the time display device,
The liquid crystal display means has a plurality of display elements arranged on the concentric circles at equal angles, and the display control means for simultaneously and analogly displaying the present time and the timer time on the liquid crystal display means. .

According to a second aspect of the present invention, there is provided a time display device for a combustor, which comprises liquid crystal display means having a plurality of display elements arranged concentrically at intervals of 6 degrees. And a long hand group consisting of a plurality of longest long hands that form the hands of an analog timepiece, a middle hand that extends from the vicinity of the same center to the periphery and that has the shape of an analog timepiece, and is shorter than the long hand, and the outer end of this middle hand. To the short hand group extending to the same peripheral end position as the long hand, and the short hand group and the short hand group do not overlap.

A time display device for a combustor according to claim 3 of the present invention uses two of the display elements to display the current time, and uses one of the display elements to display a timer. The time is displayed.

According to a fourth aspect of the present invention, there is provided a time display device for a combustor, in which a current time and a timer time for starting the operation of the combustor, which can be arbitrarily set, are displayed on a single time display device. The present invention further comprises a plurality of display elements arranged on concentric circles at intervals of 6 degrees, and the display elements extend from the vicinity of the center to the periphery and have the longest plurality of long hands which are in the shape of the hands of an analog timepiece. And a short hand group consisting of a short hand extending from the vicinity of the same center as the long hand group to the periphery and forming the needle shape of an analog timepiece, and having a middle hand shorter than the long hand and a short hand extending from the outer end of the middle hand to the same peripheral end position as the long hand. And liquid crystal display means, and display control means for displaying the present time and the timer time on the liquid crystal display means simultaneously and in an analog manner.

According to a fifth aspect of the present invention, there is provided a time display device for a combustor in which the display element indicating the present time is turned on and the display element indicating the timer time is blinked.

According to a sixth aspect of the present invention, there is provided a time display device for a combustor in which the timer time is preferentially displayed when the display element indicating the current time and the display element indicating the timer time overlap.

[0015]

According to the first aspect of the present invention, the current time and the timer time are simultaneously and analogically displayed on the liquid crystal display means, so that both times can be grasped at a glance and the conventional operation of switching the display time is unnecessary. Become.

According to the invention of claim 2, the display element of the liquid crystal display means is divided into a long hand group and a short hand group, and the long hand group and the short hand group are arranged so as not to overlap each other. The number is suppressed.

According to the third aspect of the present invention, the current time is displayed using two of the plurality of display elements, and the timer time is displayed using one of the display elements. By doing
It becomes easy to distinguish the current time from the timer time.

According to the invention of claim 4, since the display elements of the liquid crystal display means are divided into a group of long hands and a group of short hands, the number of display elements is suppressed as compared with the conventional liquid crystal timepiece device, and the display control is further performed. Since the present time and the timer time are simultaneously and analogically displayed by the means, both times can be easily confirmed, and the range of time display is increased.

According to the invention of claim 5, since the display element showing the current time is turned on and the display element showing the timer time is blinked, the display states of the current time and the timer time are different from each other, and both the times are It will be easier to distinguish.

According to the sixth aspect of the present invention, when the display element indicating the current time and the display element indicating the timer time overlap, the timer time is preferentially displayed. Even if the number of is reduced, the timer time is not lost.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a block circuit diagram showing a block diagram of a time display device of a combustor of the present invention, FIG. 2 is an external perspective view of the combustor of the present invention, and FIG. 3 is an operation of the combustor including the time display device. 4 is a plan view showing the arrangement pattern of the display elements of the liquid crystal display means of the time display device, FIG. 5 is a plan view of the liquid crystal display means in a state where the power is not turned on,
FIG. 6 is a flow chart for explaining the time display priority process of the display control means, FIG. 7 is a plan view of the liquid crystal display means showing an example of display contents for displaying the current time and the timer time, and FIG. 8 is a state in which the power is just turned on. 10 is a plan view of the liquid crystal display means showing an example of the display contents of the current time in FIG. 9, FIG. 9 is a plan view of the liquid crystal display means showing an example of the display contents from the operation of the timer switch to the start of the timer operation, FIG. Is a plan view of a liquid crystal display unit showing an example of display contents from the start of the timer operation to the stop of the timer operation,
FIG. 11 is a plan view of a liquid crystal display unit showing an example of display contents from when the timer switch is operated to when the timer operation is stopped, and FIG. 12 is a display content from when the operation switch is pressed to when the operation is stopped. FIG. 13 is a plan view of the liquid crystal display means showing an example of the display contents when the timer operation start time and the current time display overlap, and FIG. 14 is the timer operation start time. FIG. 15 is a plan view of liquid crystal display means showing an example of display contents when the minute display of the current time overlaps, FIG. 15 is a plan view of liquid crystal display means showing another embodiment of FIG. 9, and FIG. It is a top view of the liquid crystal display means which shows an Example.

As the combustor, there are a warm air heater, a radiant heater, etc., and some use oil or gas as fuel. In this embodiment, an oil hot air heater represented by an oil fan heater is taken up among them,
A case in which a time display device is applied to this oil warm air heater will be described.

Reference numeral 1 denotes an oil fan heater. A warm air blowing grill 3 is provided slightly below the center of the front surface of a main body 2 in which a combustion device (not shown) of the oil fan heater 1 is incorporated. An operation unit 4 having a display and operation switches is provided. Reference numeral 5 is a lid for inserting and removing an oil tank that stores oil, which is fuel for the combustion apparatus. The combustion device (not shown) includes a burner, a burner heater, a burner blower, a warm air blower, a fuel supply pump, an ignition plug, and the like.

Next, the operation unit 4 having the display device of the present invention will be described with reference to FIG. In the operation unit 4, various operation means for instructing and setting the operation start, operation stop, etc. of the combustion apparatus and display means for displaying or notifying various information by turning on / off / blinking and the like are arranged in a mixed manner.

Reference numeral 11 is an operation switch which also serves as an operation start switch for instructing the operation start of the combustion apparatus and an extension switch for instructing the continuation of combustion by operating the combustion apparatus during combustion (that is, during operation). It is an operation cut-off switch for instructing the operation stop of the combustion device. Reference numeral 13 switches a combustion mode including an automatic operation mode in which the combustion state of the combustion device is automatically changed according to room temperature and a continuous mode in which the combustion state is constant (also referred to as a manual setting mode), a desired temperature or a desired temperature. Is a combustion switching knob as a combustion setting means for instructing the combustion state of.

Reference numeral 14 functions when the time change mode is instructed by the child lock switch 17, which will be described later, to set the current time, and also operates when the timer switch 15 is operated to set a desired timer operation start time. Reference numeral 16 is a time setting knob for setting the time, and reference numeral 16 is a second-speed ignition switch for instructing a second-speed ignition mode in which ignition is quickly performed when an ignition plug included in the combustion device is operated. It should be noted that a lamp such as an LED for notifying that these switches have been operated may be arranged below the portion where the operation switch 11, the timer switch 15 and the second speed ignition switch 16 are arranged.

A child lock switch 17 serves as an invalidation instructing means for instructing an invalidation mode for invalidating the operation of the various switches and the knobs so that the instruction contents and the setting contents by these various switches and the knobs cannot be changed. Is.

Reference numeral 18 is an oil supply lamp for notifying that the oil tank is out of oil, and reference numeral 19 is a ventilation lamp for promoting ventilation after a lapse of a predetermined time from the start of operation of the combustion device.

Reference numeral 20 denotes a liquid crystal display device as a liquid crystal display means of the present invention. The liquid crystal display device 20 has a combustion display section 21 for displaying a combustion mode and a set temperature or a set combustion state on the right side, and a time display on the left side. A clock unit 22 as a time display unit for displaying is displayed, and an invalidation notification unit 23 for notifying that the invalidation mode is instructed by the operation of the child lock switch 17 is arranged in the upper center part.

In the liquid crystal display device 20 of the present invention, the invalidation notifying means 23 is not displayed in the invalidation mode, and characters are displayed only in the invalidation mode. However, the present invention is not limited to this example. For example, a dedicated child lock lamp may be turned on instead of the liquid crystal display.

In the time section 22 shown in FIG. 3, the current time is 1
It is indicated that it is 0:08, and in the state where the power plug is not inserted into the power outlet, that is, in the non-energized state, the state is as shown in FIG. That is, two concentric circles with different diameters are drawn in the time section 22, and in the portion surrounded by these two circles, there are two kinds of large and small scales arranged at equal angles, for example, 6 degrees, and The numbers 1 to 12 are drawn on the outside of the scale.

Next, the time display device of the present invention will be described. First, reference numeral 31 is a microcomputer (hereinafter referred to as a microcomputer) as a control device for controlling the operation of loads such as the combustion device, the liquid crystal display device 20, the refueling lamp 18 and the ventilation lamp 19, and the microcomputer 31 is a block shown in FIG. The liquid crystal display device 20, the refueling lamp 18, and the ventilation lamp 19 are shown as loads in this embodiment.

32 is an operation switch (operation ON key) 11,
A key input unit provided to receive signals from the operation switch (operation OFF key) 12, the timer switch (timer key) 15, and the child lock switch (child lock key) 17, based on the operation of each switch (key). And outputs a unique signal associated with each key operation. 33 is a combustion mode switching knob (mode change dial) 13 and time setting knob (time change dial) 1
The dial determination unit is provided so as to input the signal from No. 4, and outputs a unique signal associated with the dial operation based on each dial operation.

A reference numeral 34 is a display for inputting signals from the key input section 32 and the dial judging section 33 and outputting signals for controlling the display contents of the load (LED display section and LCD display section) in FIG. 1 of the present invention. It is a control means and includes a display determination unit 35, a mode determination unit 36, and a timer calculation unit 37. The signal from the display control means 34 is input to the LCD output section 38 and the LED output section 39 that output a signal according to the load, and the display content of the load is controlled.

FIG. 4 shows an arrangement pattern of display elements (also referred to as segments) of the time section 22 which is the time display means of the liquid crystal display device 20.
Includes a plurality of display elements 41 arranged on a concentric circle at intervals of a predetermined angle (for example, 6 degrees).

The display element 41 extends from the vicinity of the center (for example, the smaller arc of the two concentric circles) to the periphery (up to the larger circle) and has the longest plurality (for example, the needle-shaped analog clock). In the present embodiment, a group of minute hands 42 composed of 36 minute hands 43 and a minute hand group 42 extending from the vicinity of the same center to the periphery and having a needle shape of an analog timepiece.
Shorter needles 4 (for example, 24 needles in this embodiment)
4 and a short needle group 46 composed of a plurality of (for example, 24 in this embodiment) short needles 45 extending from the outer end of the middle needle 44 to the same peripheral end position as the long needle 43. The middle needle 4
4 and the short hand 45 are almost the same as the long hand 43, and one set of the middle needle 44 and the short hand 45 is the short hand element 4.
6a, and the corresponding long hand 43 is also called a long hand element 42a.

The long hand group 42 and the short hand group 46 (that is, the long hand element 42a and the short hand element 46a) are arranged so as not to overlap with each other. That is, the long hand group 42
As shown in FIG. 4, the two long needle elements 42a and the two long needle elements 4a adjacent to each other within a central angle of 30 degrees are arranged.
One long hand element 42a is arranged one step away from 2a. Similarly to the long hand group 42, the short hand group 46 has two short hand elements 46a spaced apart by one in the same central angle of 30 degrees.
5 elements (long hand 3: short hand 2) are regularly arranged by combining the long hand group 42 and the short hand group 46 within the same central angle of 30 degrees.

With the arrangement of the display elements 41 as described above, the rules for displaying the time on the elements will be briefly described. When displaying the current time, the minute hand element 42a or the minute hand element 4 for lighting the minute by one minute.
6a are sequentially switched and displayed, and during time, the middle hand 44 corresponding to the numeral position is lit for 30 minutes from 0 minute to 29 minutes. The timer operation start time can be set in units of 12 minutes, and the short hand element 46a is displayed blinking. The timer operation stop time and the combustion end time are displayed by lighting or blinking the short hand 45 or different colors.

In order to simplify the description and distinguish it easily, the timer operation stop time is one hour after the timer operation start time, and the combustion end time is three hours after the combustion operation start time.

Next, the display control operation of the display control means and various display contents of the time display means based on the operating state of the oil fan heater will be briefly described with reference to FIGS. 6 to 16.
However, only the current time is displayed on the time section 22 of the liquid crystal display device 20 when the power plug is inserted into the power outlet and the power is turned on (also referred to as the power-on state). The current time is 3 minutes of the current time.
The minute hand is expressed in units of 0 minutes using the middle hand 44, and the minute is expressed in units of one minute using the long hand 43 or the short hand element 46a, and is simply referred to as the current time. The liquid crystal display device may be illuminated from below in a power-on state so that the display state or the display content of the liquid crystal display device 20 can be easily confirmed even in a dark room such as at night.

First, the display control operation of the display control means 34, particularly the display processing at each time, will be described with reference to FIG.
In step S1 in the power-on state, whether the timer is on standby and the time display of the timer operation start time and the current time overlap (that is, the timer switch 15 is on and the timer time display element and the current time display indicate). It is determined whether or not the elements are the same (overlapping).

If the hour display overlaps at step S1, the process proceeds to step S3, and if not, step S2.
The time display of the current time is processed by lighting. FIG. 8 shows an example of this state. According to FIG. 8, the current time is 6
It is hour 03, and both the middle hand 44 and the long hand 43 are lit.

In step S3, whether or not the timer is on standby and the minute display of the timer operation start time and the current time overlap (that is, the timer switch 15 is on and the timer time display element and the minute display element of the current time are Whether or not they overlap) is determined. Step S3
If the minutes display overlaps, the process proceeds to step S5, and if they do not overlap, the minutes display of the current time is subjected to lighting display processing in step S4.

7 and 9 show examples of this minute display. According to FIG. 7, the current time is 2:02,
Both the middle hand 44 and the long hand 43 are lit, the timer operation start time is 3:36, and the long hand element 42a is blinking. According to FIG. 9 which is another embodiment, the current time is 7:46, both the middle hand 44 and the long hand 43 are lit, the timer operation start time is 6:12, and the long hand element 42a is It is blinking.

As described above, the display control means 34 controls the liquid crystal display means 22 having a plurality of display elements in the shape of hands of an analog timepiece arranged on the concentric circles at equal angular intervals. Since two or more times of the timer operation stop time and the scheduled stop time are simultaneously and analogly displayed, the time can be easily confirmed as compared with the conventional numerical liquid crystal display, which is impossible in the past. It is possible to display a plurality of times at the same time, and it is not necessary to perform a switching operation for switching the display contents at the time display. Further, since the display state is made different for each time to be displayed, it is easy to distinguish each time, and it is easy to deal with the processing when the displayed display elements overlap.

In step S5, it is determined whether or not the timer is on standby (that is, whether the timer switch 15 is on or off). If it is on, the timer time is displayed blinking in step S6, and the display is lit even during this blinking. It is determined whether or not it is in the middle, and if it is not lit, the process returns to step S1, and if it is lit, the display processing of the timer time is performed in step S7 (that is, the timer operation start time is displayed by blinking).

FIG. 13 shows an example in which the hour display in this state overlaps. According to FIG. 13, the current time is 6:00, the minute hand 43 representing the current time is lit, and the timer. The operation start time is also 6:00, and the short hand element 46a indicating the timer operation start time is blinking. FIG. 14 shows an example in which the minute display overlaps,
According to FIG. 14, the current time is 4:32, the middle hand 44 representing the time at this current time is lit, and the timer operation start time is 6:24. The short hand element 46a representing the time is blinking.

At this time, the current time is displayed in the lit state and the timer time is displayed in the blinking state in the time section 22. That is, when the display of three display elements is normally performed, when the timer time and the minute display or the hour display of the current time overlap, the display of the timer time is prioritized and the display showing the current time is displayed. The number of elements is one less than the usual two or zero (only at 12:00)
Then, one display element for the timer time flashes. Therefore, even when the two times overlap, they can be displayed separately, and it becomes easy to confirm or distinguish the overlap of the times.

Next, although not particularly shown in the flow chart, it is determined whether or not combustion is in progress (that is, whether or not the flame detection signal is output), and if combustion is not in progress, the process returns to step S1 (that is, the current time). Continues to be displayed), if combustion is being performed, display processing of the combustion end time is performed (that is, the combustion end time is displayed by a single display element), and the process returns to step S1. To improve.

At this time, the current time may be displayed in the lit state and the combustion end time may be displayed in the blinking state in the time section 22. Normally, three display elements are displayed, but even if the combustion end time and the current time overlap, if the display of the combustion end time is preferentially processed, the display element indicating the current time will be the normal display element 2. One or zero (only at 12:00), which is less than one, and one display element at the end of combustion blinks. Therefore, even when the two times overlap, they can be displayed separately, and it becomes easy to confirm or distinguish the overlap of the times.

If the combustion end time is displayed only by the short hand 45 and the display state is made different from the other two times (for example, the display color is made different, or the blinking interval is made different), then three times are displayed. It is possible to display the time at the same time, and even in that case, it is easy to distinguish each time, and it is possible to make a separate check regarding the overlapping of the displays.

FIG. 11 shows an example of displaying these three times at the same time. According to FIG. 11, the current time is 6:00 and the long hand 43 and the middle hand 44 indicating the current time.
Are both lit, and the timer operation start time is 7:00
The minute hand element 46a indicating the timer operation start time blinks, and the timer operation end time is 8:00.
It is 0 minutes, and the short hand 45 indicating the timer operation end time is lit.

Further, in the present embodiment, the time after the predetermined time has elapsed from the start of the timer operation (that is, the timer operation stop time).
Although the combustion end time is described as above, the same effect can be expected even when the scheduled stop time at which the combustion is ended after a predetermined time (here, 3 hours) from the start time of the normal operation by the power switch 11 is set as the combustion end time. . That is, according to FIG. 10, the current time is 2:02, both the long hand 43 and the middle hand 44 are lit, the timer operation end time is 3:36, and the short hand 45 is lit or blinking. .

Assuming that the certain period of time is longer than the certain period of time and is a multiple of the certain period of time (three times in the present embodiment), the certain period of time does not matter which switch is operated to start combustion. It goes without saying that it does not matter at all.

According to FIG. 10, the current time is 7:22, both the middle hand 44 and the long hand 43 are lit, the combustion end time is 9:00, and the short hand 45 is lit. Incidentally, the combustion start time is 6:00 (it may or may not be displayed and is not displayed here).

FIG. 15 shows an example different from the display state of FIG. 9, in which the display color of the minute hand element 42a for displaying the timer time is different, and FIG. 16 shows an example different from the display state of FIG. The element for displaying the timer time is not the long hand element 42a but the short hand 45, and the short hand 45 is lit or blinked. As described above, since the current time and the timer time are displayed on the liquid crystal display means 20 simultaneously and in an analog manner, both times can be grasped at a glance, and the conventional display time switching operation becomes unnecessary.

Further, the display element 41 of the liquid crystal display means 20 is divided into a long hand group 42 and a short hand group 46, and the long hand group 42 and the short hand group 46 are arranged so as not to overlap each other. The number is suppressed from 120 in the conventional case to 60 (84 when considering the middle needle 44 and the short needle 45 as the number of elements separately).

Furthermore, the present time is displayed by using two of the 60 display elements 41, and the timer time is displayed by using one of the display elements 41. It becomes easy to distinguish the current time from the timer time.

In particular, by dividing the display element 41 of the liquid crystal display means 20 into the long hand group 42 and the short hand group 46, the number of display elements is suppressed as compared with the conventional liquid crystal timepiece device as described above, and further display is performed. Since the current time and the timer time are simultaneously and analogly displayed by the control means 34, both times can be easily confirmed and the range of time display is increased.

Further, since the display element showing the current time is turned on and the display element showing the timer time is blinked, the display states of the current time and the timer time are different, and it becomes easier to distinguish between the two times.

Further, when the display element indicating the current time and the display element indicating the timer time overlap, the timer time is preferentially displayed. Therefore, even if the elements overlap and the number of operating display elements decreases. There is no problem of not knowing the timer time, and the driver for controlling the display operation of the liquid crystal display means is more
It can be ranked.

[0063]

According to the invention of claim 1, the current time and the timer time are simultaneously and analogly displayed on the liquid crystal display means, so that both times can be grasped at a glance, and the conventional display device can be realized. This eliminates the need for a common display time switching operation, simplifies the display-related operation, and improves the display function of the combustor time display device.

According to the second aspect of the invention, the display element of the liquid crystal display means is divided into a long hand group and a short hand group, and the long hand group and the short hand group are arranged so as not to overlap each other. The number can be suppressed as compared with the conventional analog liquid crystal timepiece device, and it is possible to promote cost reduction due to downsizing of the time display device, lower rank of the liquid crystal driver, and the like.

According to the third aspect of the invention, the current time is displayed by using two of the plurality of display elements, and the timer time is displayed by using one of the display elements. By doing
The number of elements to be displayed can be reduced, power consumption required for display can be reduced, and the current time can be easily distinguished from the timer time.

According to the invention of claim 4, the display elements of the liquid crystal display means are divided into a group of long hands and a group of short hands, so that the number of display elements can be suppressed as compared with the conventional liquid crystal timepiece device and the liquid crystal display means. The unit price can be suppressed, and the current time and the timer time are displayed simultaneously and in an analog manner by the display control means, so that both times can be easily confirmed and the range of time display is increased.

According to the invention of claim 5, since the display element showing the current time is turned on and the display element showing the timer time is blinked, the display states of the current time and the timer time are different from each other, and It is easier to distinguish from the timer time, and the operability can be improved due to the ease of viewing.

According to the sixth aspect of the present invention, when the display element indicating the current time and the display element indicating the timer time overlap, the timer time is preferentially displayed. Even if the number of elements is reduced from 3 to 2, the timer time is not lost.

[Brief description of drawings]

FIG. 1 is a block circuit diagram showing a block diagram of a time display device of a combustor of the present invention.

FIG. 2 is an external perspective view of a combustor of the present invention.

FIG. 3 is a plan view of an operation unit of a combustor including a time display device.

FIG. 4 is a plan view showing an arrangement pattern of display elements of liquid crystal display means of the time display device.

FIG. 5 is a plan view of the liquid crystal display means when the power is not turned on.

FIG. 6 is a flowchart illustrating a time display priority process of display control means.

FIG. 7 is a plan view of a liquid crystal display unit showing an example of display contents for displaying current time and timer time.

FIG. 8 is a plan view of a liquid crystal display unit showing an example of display contents of the current time when the power is turned on.

FIG. 9 is a plan view of a liquid crystal display unit showing an example of display contents from when a timer switch is operated to when a timer operation is started.

FIG. 10 is a plan view of a liquid crystal display unit showing an example of display contents from the start of the timer operation to the stop of the timer operation.

FIG. 11 is a plan view of a liquid crystal display unit showing an example of display contents from when a timer switch is operated to when the timer operation is stopped.

FIG. 12 is a plan view of a liquid crystal display unit showing an example of display contents from when the operation switch is pressed to when the operation is stopped.

FIG. 13 is a plan view of a liquid crystal display unit showing an example of display contents when the timer operation start time and the current time hour display overlap.

FIG. 14 is a plan view of a liquid crystal display unit showing an example of display contents when the timer operation start time and the minute display of the current time overlap.

15 is a plan view of a liquid crystal display means showing another embodiment of FIG.

16 is a plan view of a liquid crystal display means showing another embodiment of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Petroleum fan heater (combustor) 4 Operation part 11 Operation switch (operation start switch) 20 Liquid crystal display device (liquid crystal display means) 22 Clock part (time display means) 31 Microcomputer (control device) 34 Display control means 41 Display element 42 Long Hand Group 42a Long Hand Element 43 Long Hand 44 Medium Hand 45 Short Hand 46 Short Hand Group 46a Short Hand Element

Claims (6)

[Claims] 1. A combustor in which a current time and a timer time for starting the operation of the combustor, which can be arbitrarily set, are displayed on a single time display device are arranged on concentric circles at equal angular intervals. Time display device for a combustor, comprising liquid crystal display means having a plurality of displayed display elements, and display control means for displaying the current time and the timer time on the liquid crystal display means simultaneously and in an analog manner. . 2. A combustor in which a current time and a timer time that is an arbitrarily settable time for starting the operation of the combustor are displayed on a single time display device.
A liquid crystal display means having a plurality of display elements arranged at every interval is provided, and the display element is the same as a long hand group consisting of a plurality of longest hands extending from the vicinity of the center to the periphery and forming the hands of an analog timepiece. Along with a short hand group extending from the vicinity of the center to the periphery and forming the needle shape of an analog timepiece, and a short hand shorter than the long hand and a short hand extending from the outer end of the middle hand to the same peripheral end position as the long hand,
A time display device for a combustor, characterized in that the long hand group and the short hand group do not overlap. 3. The liquid crystal display device displays the current time using two elements of the display elements, and displays the timer time using one element of the display elements. The time display device of the combustor according to claim 1 or 2. 4. A combustor in which a current time and a timer time for starting the operation of the combustor, which can be arbitrarily set, are displayed on a single time display device.
It has a plurality of display elements arranged at every interval, and this display element extends from the vicinity of the center to the periphery and also extends from the vicinity of the center to the periphery with a long hand group consisting of a plurality of longest hands that form the hands of an analog timepiece. Liquid crystal display means comprising a middle hand that extends and forms the hands of an analog clock and is shorter than the long hand, and a group of short hands that extends from the outer end of the middle hand to the same peripheral end position as the long hand, and the liquid crystal A time display device for a combustor, comprising: display control means for displaying the present time and the timer time on the display means at the same time. 5. The display control means lights the display element indicating the current time and blinks the display element indicating the timer time.
The time display device of the combustor according to. 6. The combustor according to claim 5, wherein the display control means preferentially displays the timer time when the display element indicating the current time and the display element indicating the timer time overlap each other. Time display device.