JP2777448B2 - heater - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Industrial application field The present invention relates to a heater that heats room air by heating a room air with a burner built into the heater body, such as a hot air heater or a radiant heater. About.

(B) Conventional technology In recent years, a heater of this type compares a room temperature with a set temperature as disclosed in, for example, JP-A-60-2843.
Comfortable and precise room temperature control can be performed by automatically adjusting the combustion amount in the burner so that the room temperature approaches the set temperature, or by controlling the burner combustion on / off.

(C) Problems to be Solved by the Invention Incidentally, many customers desire not only the above-described automatic operation but also a manual operation in which the combustion amount can be set by themselves. Therefore, in the heater disclosed in Japanese Utility Model Laid-Open No. 60-47017, an automatic operation mode and a manual operation mode can be selected.

Such an operation mode is usually selected by a slide or rotary changeover switch in many cases. However, when the switch-on position is at the intermediate position,
In some cases, the operation in the manual operation mode was executed even though the automatic operation mode was selected. For this reason, strong and weak combustion are continuously performed, giving customers discomfort,
There is a problem that fuel is wasted by excessive heating.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described circumstances, and has as its object to provide a heating device that is capable of selecting an automatic operation mode or a manual operation mode, and that is excellent in economy and performs comfortable heating operation. And

(D) Means for Solving the Problems According to the present invention, an automatic operation mode is provided in which a burner for heating the indoor air is built in the heater body, and the combustion amount of the burner or the combustion is controlled according to the room temperature and the set temperature. In a heater in which a manual operation mode for controlling the combustion amount of a burner to a set amount can be selected, a movable switching means for setting an operation mode, and an automatic operation mode when the switching means is on one side. Control means for executing the operation, executing the operation in the manual operation mode when the switching means is on the other side, and executing the operation in the automatic operation mode when the switching means is at the intermediate position.

(E) Operation When the movable switching means is at the intermediate position, the operation in the automatic operation mode is performed prior to the operation in the manual operation mode. It is executed and there is no worry about discomfort to customers and wasted fuel.

(F) Embodiment Hereinafter, embodiments of the present invention shown in the drawings will be described.

FIG. 1 shows a heater according to an embodiment of the present invention. This heater is generally called a fan heater and has a burner (3) in a heater main body (2) having an air intake (not shown) on the back surface and a hot air outlet (1) on the front surface; A blower fan (4) is built in, and the room air flowing from the air intake is heated by the burner (3) and discharged from the hot air outlet (1) together with the combustion gas of the burner (3). . An operation unit (5) and a lid (6) for taking in and out a cartridge tank (not shown) are provided at an upper portion of the heater body (2).

As shown in FIGS. 2 to 5, the operation unit (5) is provided with an operation operation unit (5A) having an operation switch (7) and a time extension switch (8) at the right end. On the left side of the operation section (5A), a combustion amount setting switch (9) is provided.
(12) and a manual operation setting section (second setting section) (17) having set amount lamps (13) to (16), and a timer switch is provided on the left side of the manual operation setting section (17). (18) Automatic operation setting section (first setting section) (23) having an up switch (19) and a down switch (20), a timer lamp (21) and a digital display (22)
Are provided. The operation unit (5) is provided with a slide-type cover (24). This cover (24) is used for the manual operation setting section (17) or the automatic operation setting section (2).
There is a size to cover either one of 3) and it is slidably held between these two setting sections (17) and (23). Also,
On the back side of the cover (24), a magnet (25) is attached to the right end. (26) is a circuit board to which the above-mentioned switches, lamps and the like are connected, and is provided on the back side of the operation unit (5). The circuit board (26) has the cover (24) shown in FIG. 2 (the cover (24) is in the automatic operation setting section (23)).
A reed switch (27) that is turned on by the magnet (25) when the switch is in the state of covering the cover).

FIG. 6 shows a control device of the above-described heater.

In FIG. 6, reference numeral (28) denotes a microcomputer. An operation switch (7), a time extension switch (8), a combustion amount switch (9) to (12), a timer are provided on the input side of the microcomputer (28). A switch (18), an up switch (19), a down switch (20), a reed switch (27), and a room temperature sensor (29) are connected.
On the output side of the microcomputer (28), an electromagnetic pump (30) for supplying fuel (kerosene) to the burner (3), and a burner fan (3) for supplying combustion air to the burner (3).
1), blower fan (4), set amount lamp (13) or (1
6) Timer lamp (21) and digital display (22)
Is connected.

As shown in FIG. 7, when the operation switch (7) is turned on (ON), the microcomputer (28) described above operates in the manual operation mode or the automatic operation mode in accordance with the ON / OFF of the reed switch (27). It is determined which of the modes is set, and operation control is performed based on the determination result.
That is, when the cover (24) also serving as the switching means covers the automatic operation setting section (23) as shown in FIG. 2 and the reed switch (27) is turned on by the magnet (25), the microcomputer (28) ) Determines that the manual operation mode is set. In addition, the cover (24) covers the manual operation setting section (17) as shown in FIG. 3, or the cover (24) is located at an intermediate position between the setting sections (17) and (23) as shown in FIG. Yes, if the reed switch (27) is off,
The microcomputer (28) determines that the manual operation mode is set.

When the manual operation mode is set, the microcomputer (28) determines which one of the combustion amount switches (9) to (12) is being pressed (priority is given to the last push),
The combustion amount (four levels from strong to weak) corresponding to the operated switch is determined. Then, the electromagnetic pump (30) is operated at a predetermined rotation speed, and the burner fan (31) is operated at a predetermined rotation speed so that the combustion amount is obtained. Operate the blower fan (4). At this time, the combustion amount switch (9)
(13) to (1)
6) lights up, and indicates which combustion amount is set.

On the other hand, when the automatic operation mode is set, the microcomputer (28) compares the room temperature with the set temperature (10 ° C to 30 ° C) by the up switch (19) or the down switch (20), and compares the set temperature with the room temperature. The combustion amount in the burner is set as shown in FIG. Then, the electromagnetic pump (30) is operated at the set number of revolutions so as to obtain the combustion amount, and the burner fan (31) is operated at the set number of revolutions. Operate the fan (4) at the set speed. Also,
The combustion in the burner (3) may be turned on / off.

When the timer switch (18) is pressed while the operation switch (7) is being turned on, the microcomputer (28) turns on the timer lamp (21), and stops the combustion when burning. And the up switch (1
9) Or after the timer time (within 24 hours) set by the down switch (20), the heating operation in the above-mentioned automatic operation mode is performed.

The heating operation in the manual operation mode and the automatic operation mode described above is terminated in three hours, and the heating operation in the timer mode is terminated in one hour. However, if the time extension switch (8) is pressed during the heating operation, the operation is extended for 3 hours from that point.

The digital display (22) is used in the automatic operation mode or the timer mode, and the room temperature detected by the room temperature sensor (29) is usually digitally displayed in two digits. The set temperature is displayed while the up switch (19) or down switch (20) is being operated, and the up switch (19) or down switch (20) is displayed during standby in the timer mode (before starting operation). Is operated, the timer time described above is digitally displayed.

According to the present embodiment, when the slide type cover (24) is at an intermediate position between the manual operation setting section (17) and the automatic operation setting section (23), the microcomputer (28) operates in the automatic operation mode. As it is executed, driving in the manual driving mode is executed as if the customer had set the automatic driving mode, and it is possible to perform comfortable heating operation without making the customer feel hot or cold In addition, waste of fuel due to continuous strong combustion can be prevented.
In addition, since the operation modes that are not used are covered with the cover, the setting operation can be performed without being confused by the switches of the operation modes that are not used, even though there are many switches for setting. There is no such thing as usability, and safety can be improved.
Further, since the cover (24) also serves as the switching means, it is possible to accurately set the operation mode while viewing the setting sections (17) and (23), and to use both operation modes without using a dedicated switching means. Selection can be made easily.

(G) Effect of the Invention Since the present invention is configured as described above, the automatic operation mode in which the combustion amount is controlled according to the room temperature and the set temperature and the manual operation mode in which the combustion amount is controlled to the set amount are set. When the switching means is at the intermediate position while allowing the selection according to the customer's request, the operation in the automatic operation mode is performed in preference to the operation in the manual operation mode, and the operation in the manual operation mode is performed against the intention of the customer. Is performed, and a comfortable and economical heating operation can be performed, such as giving a feeling of discomfort to the customer and preventing wasteful use of fuel.

[Brief description of the drawings]

FIG. 1 is a perspective view of a heater showing one embodiment of the present invention, FIG. 2 is an enlarged explanatory view of an operation unit when a cover is on an operation mode setting unit side, and FIG. FIG. 4 is an enlarged explanatory view of the operation unit when the cover is at an intermediate position, FIG. 5 is a cross-sectional view of the operation unit, and FIG. 6 is a control device of the heater. FIG. 7 is a flowchart for explaining the operation of the control device, and FIG. 8 is a characteristic explanatory diagram showing the relationship between the differential temperature and the combustion amount in the automatic operation mode. (2) ... heater body, (3) ... burner, (24) ...
Cover (switching means), (28)... Microcomputer (control means).

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Takeshi Osawa 2-18-18 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (72) Inventor Yuichi Yoshizawa 2-18-18 Keihanhondori, Moriguchi-shi, Osaka (56) References JP-A 1-312326 (JP, A) JP-A 1-139248 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) F24C 1 / 00 F24C 5/00

Claims (1)

(57) [Claims] 1. A burner for heating indoor air is built in a heater body, and an amount of combustion of the burner or an automatic operation mode for controlling combustion according to a room temperature and a set temperature; In a heater capable of selecting a manual operation mode to be controlled, a movable switching means for setting an operation mode, and when the switching means is on one side, an operation in an automatic operation mode is executed. And a control means for executing the operation in the manual operation mode when it is on the side and executing the operation in the automatic operation mode when the switching means is in the intermediate position.