JP2002310507A - Hot-air heater - Google Patents

Abstract

PROBLEM TO BE SOLVED: To keep an evaporating dish clean in a hot-air heater provided with the evaporating dish for storing humidifying water to evaporate it and a water supply device having a water receiving dish storing water, a water-conveying means supplying the humidifying water to the evaporating dish from this water receiving dish, etc. SOLUTION: A hot-air heater 10 is provided with an evaporating dish 40 for storing humidifying water to evaporate it and a water supply device 45 supplying this evaporating dish 40 with the humidifying water, and this water supply device 45 has a water receiving dish 46 storing water and a water- conveying means 48 pumping up the humidifying water in this water receiving dish 46. In the hot-air heater 10, a temperature detector 44 detecting the temperature of the evaporating dish 40 is provided. A control part 16 is provided to control in such a manner as to supply the evaporating dish 40 with water by operating the water-conveying means 48 for a predetermined time and store the cumulative operation hour to stop the water-conveying means 48 at the time when this cumulative operation hour reaches a cumulative predetermined hour in the case when this temperature detector 44 detects the set temperature M that is preset or higher.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hot air heater having a humidifying function, such as an FF oil hot air heater or an FF gas hot air heater.

[0002]

2. Description of the Related Art Conventionally, as a warm air heater 1 of this type,
For example, as shown in FIG.
A convection fan 3 and a heat exchanger 4 are provided in a main body 1A provided with a warm air outlet 2B at a lower part on the front surface, and a heat exchanger 4 in a ventilation flow path 5 in which the convection fan 3 and the heat exchanger 4 are arranged. It is known that the evaporating dish 6 is disposed more leeward than the evaporating dish 6.

[0006] As shown in FIG. 6, the evaporating dish 6 is provided with a water level detecting device 8 such as a float switch for detecting the presence or absence of water in the evaporating dish 6. A water supply device 7 having a water supply tank 7a for supplying water for use to the evaporating dish 6 and a water receiving tray 7b is provided. When the water level detecting device 8 of the evaporating dish 6 detects a level below the predetermined water level of the evaporating dish 6 (the lowest water level that can be detected by the water level detecting device 8), a signal is transmitted to the control section 9 and the control section 9 is controlled.
Has displayed (notified) a drought on a display unit (notifying means) 9a provided in the warm air heater main body 1A.

[0004]

However, in the conventional hot air heater 1 as described above, the water level detecting device 8 of the evaporating dish 6 is not provided.
When the water level is detected to be equal to or lower than the predetermined water level, a small amount of water remains in the evaporating dish 6. If water remains in the evaporating dish 6, various bacteria may propagate in the remaining water, There is a problem that garbage and dust are apt to be attached, resulting in unsanitary condition.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and comprises an evaporating dish for storing and evaporating humidified water, a water receiving dish for storing water, and supplying water to the evaporating dish from the water receiving dish. It is an object of the present invention to provide a hot-air heater provided with a water supply device having a water supply means or the like for keeping an evaporating dish clean.

[0006]

According to one aspect of the present invention, there is provided an evaporating dish for storing and evaporating humidifying water, and a water supply device for supplying the humidifying water to the evaporating dish. The water supply device is provided with a temperature detecting device for detecting the temperature of the evaporating dish in a hot air heater having a water receiving tray for storing water and a water supply means for pumping up humidified water in the water receiving tray. When the temperature detection device detects a temperature equal to or higher than a preset temperature, the water supply means is operated for a predetermined time to supply water to the evaporating dish, and the cumulative operation time is stored. When the accumulated predetermined time has been reached, a control unit for controlling the water supply means to stop is provided.

According to a second aspect of the present invention, there is provided an evaporating dish for storing and evaporating humidified water, and a water supply device for supplying the humidified water to the evaporating dish. In a hot air heater having a receiving tray and a water supply means for pumping humidified water in the water receiving tray, a temperature detecting device for detecting a temperature of the evaporating tray is provided, and the temperature detecting device detects a temperature equal to or higher than a preset temperature. When it is detected, the water supply means is operated to supply water to the evaporating dish, and the number of times that the temperature is equal to or higher than the set temperature is counted, and when the water supply means is operated a predetermined number of times, the water supply means is controlled to stop. A control unit is provided.

According to a third aspect of the present invention, in the warm air heater according to the first or second aspect, a notifying means is provided on the main body of the hot air heater, and the temperature detecting device detects a set temperature to supply water. Is activated, and when the temperature detecting device detects the set temperature or more even after the lapse of a predetermined time, a control device is provided for controlling the notifying unit to perform drought notification.

According to a fourth aspect of the present invention, in the hot air heater according to any one of the first to third aspects, the water supply means includes:
It is characterized by being constituted by an electromagnetic pump.

According to a fifth aspect of the present invention, in the hot air heater according to any one of the first to fourth aspects, the water supply device includes:
It is provided with a water supply tank for replenishing water to the water receiving tray, and this water supply tank is housed in the hot air heater main body so as to be able to be freely inserted and removed through a tank inlet / outlet provided in the hot air heater main body. I do.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIG.
This will be described with reference to FIGS. 1 is an external perspective view of the oil hot air heater, FIG. 2 is a side sectional view of FIG. 1, FIG. 3 is a partially cutaway front view of FIG. 1, and FIG. 4 is an explanatory view of the water supply device of FIG.

An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is an external perspective view of an oil hot air heater in Embodiment 1, FIG. 2 is a side sectional view thereof, and FIG.
Is a partially cutaway front view of the oil warm air heater, and FIG. 4 is an explanatory diagram of a water supply device of the oil warm air heater.

In FIG. 1, an oil warm air heater (hereinafter referred to as a heater) 10 has a box-shaped main body case 11, which has a case main body 10A and a front panel 12, and a case main body 10A. Is covered with a detachably attached front panel 12, and a lower part of the front panel 12 faces a horizontally long hot air outlet grill (hot air outlet) 13 having a plurality of horizontal guide blades. I have. An operation unit having an operation switch for operating the heater 10, a set temperature switch for setting a desired room temperature, a humidification operation switch for setting a humidification mode, and the like are provided on a top surface of the main body case 11. And a display unit 14 for displaying the operation mode of the heater, the set temperature, and the like. The switches of the operation unit, the electric components of the display unit 14, and the like are connected to a control unit 16 (FIG. 3) provided in the case body 10A.

In FIGS. 2 and 3, reference numeral 17 denotes a back guard attached to the rear of the case body 10A. The back guard 17 includes a top plate and left and right side plates. The upper part and the left and right sides of the rear space between them are covered.

An air suction port 15 having a detachable filter 15a is provided at the upper portion of the back plate of the case body 10A, and mounting feet 19 for horizontal adjustment are provided near four corners of the bottom plate of the case body 10A. The height is freely adjustable.

In the case body 10A, there is formed an air flow passage 18 which extends from the air inlet 15 to the hot air outlet grill 13. An oil burner 21 that vaporizes and burns petroleum fuel such as kerosene, a combustion tube 22 connected to the oil burner 21, a connection box 23 connected to the combustion tube 22, A heat exchange section 20 having a heat exchange pipe 24 and an exhaust collecting box 25 and an exhaust pipe 26 connected to the exhaust collecting box 25 are housed.

An oil leveler (not shown) for storing petroleum fuel sent from an oil supply pipe (not shown) is accommodated in a lower portion of one side of the case main body 10A, and the fuel in the oil leveler is The oil is supplied to the oil burner 21 via a fuel pump (not shown) and a fuel supply pipe 27.

Reference numeral 28 denotes an air supply blower for supplying combustion air to the oil burner 21. The air supply blower 28 has an air supply pipe 29 connected to one end face and an oil supply burner 21 to the other end.
Connected to.

An upper portion of the case body 10A is provided with a warm air blower 31 facing the air suction port 15. The warm air blower 31 includes a motor 33 and a plurality of sirocco fans 34 (convection fan). Fan) and multiple fan cases 3
5 from the air inlet 15 to the case body 10
The room air sucked into A is blown toward the heat exchange unit 20.

An evaporating dish 40 for storing humidified water to be evaporated by warm air is removably accommodated in the air flow passage 18 on the leeward side of the heat exchanger 20, that is, in the lower part of the case body 10A. A dish receiver 36 is provided. The evaporating dish 40 can be taken out of the case body 10A through an insertion / removal opening 37 (FIG. 2) formed by removing the hot air blow-off grill 13.

The dish receiver 36 is made of a material having thermal conductivity, and has a bottom plate 43 which is in contact with the evaporating dish 40 of the dish receiver 36.
A temperature sensor 44 for detecting the temperature of the evaporating dish 40 is attached to the lower surface of the evaporator. And this temperature sensor 4
Reference numeral 4 denotes a configuration in which the temperature sensing portion 44A contacts the evaporating dish 40 through a hole provided in the bottom plate 43 of the dish receiver 36. The temperature sensor 44 is electrically connected to a control unit 16 described below having a microcomputer (not shown).

The surface temperature of the evaporating dish 40 is maintained at about 40 ° C. when water is present inside the evaporating dish 40, and rises to about 70 ° C. when water is exhausted.

The detection signal of the surface temperature of the evaporating dish 40 by the temperature sensor 44 is input to the control section 16, and the control section 16 utilizes the above-mentioned temperature difference of the surface temperature of the evaporating dish 40, It is judged that the water inside is reduced or there is no water. When the temperature sensor 44 detects a temperature equal to or higher than a predetermined first set temperature M, it is determined that the water in the evaporating dish 40 has decreased, and water is supplied to the evaporating dish 40. And
The temperature sensor 44 detects a second set temperature N higher than the first temperature.
When the above is detected, it is determined that there is no water in the evaporating dish 40.

The evaporating dish 40 is provided with an evaporation promoting body 38 made of ceramic fiber as a base material and having air permeability and water absorption. In the humidification operation mode of the heater 10, the evaporation promoting body 38 sucks up the humidification water of the evaporating dish 40 and is kept in a wet state.
When hot air comes into contact with the air, water is vaporized, and the room is humidified by the vaporized water.

On the right side of the dish receiver 36, a water supply device 45 is provided. The water supply device 45 includes a detachable cartridge-type water supply tank 47, a water receiving tray 46 for receiving humidified water from the water supply tank 47, an electric water supply pump 48 for pumping humidified water in the water receiver 46, And a water supply pipe 51 connected to the water supply pump 48.

3 and 4, the water receiving tray 46 is detachably fixed in the case body 10A so that a substantially constant amount of water is maintained therein.

The water supply tank 47 is configured so as to be freely inserted into and removed from the main body case 11 through a tank access port 49 provided on the top surface of the main body case 10A. The tank access port 49 is closed by an opening / closing lid. . Also,
The water supply tank 47 is detachably mounted on the water receiving tray 46 in an inverted manner, has a cap with a valve at the bottom, and supplies humidifying water to the water receiving tray 46.

The electric water supply pump 48 has a water suction port and a water discharge port, and the suction port is located below the water surface in the water receiving tray 46.
A water supply pipe 51 is connected to the discharge port, and a distal end discharge port 51 </ b> A of the water supply pipe 51 faces directly above the evaporating dish 40. The electric water supply pump 48 is constituted by a magnet pump or an electromagnetic pump, and operates in the humidification operation mode. The electric water pump 48 is varied so that the pumping amount is increased or decreased in accordance with the rotation speed of the sirocco fan 34 (the rotation speed of the motor 33) at the time of its operation, but the pumping amount is substantially constant. Is also good.

In the above configuration, when the operation of the heater 10 is started, the combustion air is supplied to the oil burner 21 from the air supply blower 28 and the fuel supply pipe 27 is operated by the operation of the fuel pump (not shown). And the oil burner 21 starts burning. By the start of the combustion of the oil burner 21, the combustion gas passes through the heat exchange section 20 and is discharged from the exhaust pipe 26 to the outside.

Here, when the temperature of the heat exchange section 20 becomes higher than a predetermined temperature, the hot air blower 31 is driven, and the room air purified by the filter 15a is sucked into the main body case 11 from the air suction port 15. This air is blown by the hot air blower 3
The air is accelerated by the first sirocco fan 34 and blown toward the heat exchange unit 20, and exchanges heat with the heat exchange unit 20 to become hot air,
This warm air is discharged from the warm air outlet grill 13 toward the front of the main body case 11 to heat the room.

In the humidification operation mode, as shown in FIG. 4, the electric water supply pump 48 is operated, and humidification water is supplied from the water supply device 45 to the evaporating dish 40 provided on the downstream side of the heat exchange section 20, and the evaporating water is supplied. The plate 40 is filled with humidified water, and the evaporation promoting body 38 is kept in a wet state. These evaporating dishes 40
The hot air comes into contact with the evaporation promoting body 38, and the water stored in the evaporating dish 40 is heated and evaporated by the warm air, and the water sucked up by the evaporation promoting body 38 evaporates,
The vaporized water is released from the hot air blowing grill 13 together with the hot air, and the room is heated with the hot air and humidified at the same time.

When the amount of water in the evaporating dish 40 decreases and the value of the temperature sensor 44 detects a first set temperature M or higher, a signal indicating the first set temperature M or higher is controlled. It is transmitted to the unit 16. Upon receiving this signal, the control unit 16
Indicates that water is supplied to the evaporating dish 40. The control unit 16 operates the electric water supply pump 48, and accumulates and stores the operation time.

Here, if the temperature sensor 44 continues to detect a temperature equal to or higher than the first set temperature M even after a certain period of time has elapsed after the operation of the electric water supply pump 48, the display unit (notification means) 14 To indicate that it is drought. The user can recognize that by looking at the display of the drought displayed on the display unit 14.

When the electric water pump 48 is operated and water is supplied to the evaporating dish 40, the temperature of the evaporating dish 40 decreases, and the value of the temperature sensor 44 becomes lower than the first set temperature M. Thereafter, each time the temperature sensor 44 detects the first set temperature M and operates the electric water supply pump 48, the operation time of the electric water supply pump 48 is accumulated and stored. When the cumulative operation time of the electric water supply pump 48 reaches the accumulated predetermined time, the electric water supply pump 48 is kept stopped even if the temperature sensor 44 detects the first set temperature M next.
Turn off the water supply to zero. Thereby, the evaporating dish 40
Since the inside becomes empty without water and the inside of the evaporating dish 40 dries, the inside of the evaporating dish 40 can be kept clean.

The inside of the evaporating dish 40 becomes empty, and the temperature sensor 44
When the control unit 16 detects the second set temperature N higher than the first set temperature M, the control unit 16 deletes the stored data of the accumulated operation time of the electric water supply pump 48 and restarts water supply to the evaporating dish 40. The operation time of the electric water supply pump 48 is accumulated and stored.

As described above, the heater 1 according to the present embodiment is
0 indicates that when the water in the evaporating dish 40 decreases, the water is supplied only in a necessary amount each time, and after the electric water supply pump 48 accumulates and operates for a predetermined time, even if the water in the evaporating dish 40 decreases, Since the inside of the evaporating dish 40 is periodically emptied, the inside of the evaporating dish 40 can be kept clean.

Although the present invention has been described based on various embodiments, the present invention is not limited to these embodiments.

In this embodiment, the operation time of the electric water supply pump 48 is accumulated and stored, and when the accumulated operation time reaches the accumulated predetermined time, the water supply to the evaporating dish 40 is stopped. The sensor 44 detects the temperature equal to or higher than the first set temperature M, counts the number of times each time the electric water supply pump 48 operates, and stops the water supply to the evaporating dish 40 when the number reaches a predetermined number. Is also good.

In this embodiment, the drought notification is displayed on the display unit 1.
4, the notification may be made by a sound such as a buzzer or voice.

In this embodiment, a heater using an oil burner 21 is described, but a heater using a gas burner may be used.

[0041]

As described above, the present invention provides a hot air heater according to the present invention, comprising: an evaporating dish for storing and evaporating humidified water; a temperature detecting device for detecting the temperature of the evaporating dish; A water supply device for supplying humidified water to the plate, the water supply device having a water receiving tray for storing water, and a water supply means for pumping up the humidified water in the water receiving plate; When the water reduction is detected, the water supply means is operated to supply the necessary amount of water to the evaporating dish, and when the water supply means is accumulated and operates for a predetermined time, the water supply means is stopped and periodically stopped. Since it is controlled to empty the evaporating dish,
The inside of the evaporating dish can be kept clean.

[Brief description of the drawings]

FIG. 1 is an external perspective view of a petroleum hot air heater in one embodiment of the present invention.

FIG. 2 is a side sectional view of the oil warm air heater of FIG. 1;

FIG. 3 is a partially cutaway front view of the oil warm air heater of FIG. 1;

FIG. 4 is an explanatory view of a water supply device of the oil hot air heater of FIG. 1;

FIG. 5 is a side sectional view of a conventional oil hot air heater.

FIG. 6 is an explanatory diagram of a conventional water supply device for an oil hot air heater.

[Explanation of symbols]

 REFERENCE SIGNS LIST 10 oil hot air heater 10A case main body 11 main case 12 front panel 13 hot air outlet grill 15 air inlet 16 control unit 18 air flow path 20 heat exchange unit 21 oil burner (combustion unit) 22 combustion cylinder 23 connection box 24 heat Replacement pipe 34 Sirocco fan (convection fan) 36 Dish receiver 37 Insertion / removal opening (opening) 38 Evaporation enhancer 40 Evaporation dish 41 Drain port 43 Bottom plate 44 Temperature sensor (Temperature detector) 45 Water supply device 46 Water tray 47 water supply tank 48 electric water supply pump (water supply means) 49 tank inlet / outlet 51 water supply pipe M first set temperature N second set temperature

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) F24F 6/04 F24F 6/04 F24H 3/04 305 F24H 3/04 305Z (72) Inventor Takeshi Osawa Tochigi 1 Otsukicho, Ashikaga City Sanyo Electric Air Conditioning Co., Ltd. F-term (reference) 3L028 FB05 FC01 FC02 FC03 FD03 FD04 3L055 AA03 BA02 DA01 DA09 DA11 3L072 AC01 AE10 AF00 AG07

Claims (5)

[Claims] 1. An evaporating dish for storing and evaporating humidified water, and a water supply device for supplying humidified water to the evaporating dish,
This water supply device is a hot air heater having a water receiving tray for storing water and a water supply means for pumping up the humidified water in the water receiving tray, wherein a temperature detecting device for detecting the temperature of the evaporating plate is provided. When the apparatus detects a temperature equal to or higher than a preset temperature, the water supply means is operated for a predetermined time to supply water to the evaporating dish, and the accumulated operation time is stored, and the accumulated operation time is set to the accumulated predetermined time. A hot-air heater provided with a control unit for controlling the water-supplying means to stop when the temperature has reached. 2. An evaporating dish for storing and evaporating humidifying water, and a water supply device for supplying humidifying water to the evaporating dish,
This water supply device is a hot air heater having a water receiving tray for storing water and a water supply means for pumping up the humidified water in the water receiving tray, wherein a temperature detecting device for detecting the temperature of the evaporating plate is provided. When the apparatus detects a temperature equal to or higher than a preset set temperature, the water supply means is operated to supply water to the evaporating dish, and the number of times when the temperature is equal to or higher than the set temperature is counted, and the water supply means is operated a predetermined number of times. A hot-air heater provided with a control unit for controlling the water supply means to stop sometimes. 3. A notifying means is provided in the main body of the hot air heater, a temperature detecting device detects a set temperature, a water supply means is operated, and after a certain time, the temperature detecting device detects a set temperature or more. The hot-air heater according to claim 1 or 2, further comprising: a control device that controls the notification unit to perform a drought notification when the notification is made. 4. The hot air heater according to claim 1, wherein the water supply means is constituted by an electromagnetic pump. 5. The water supply device includes a water supply tank for refilling a water receiving tray with water, and the water supply tank is provided with a hot air heating system that can be freely inserted and removed through a tank opening provided in a hot air heating device body. The hot-air heater according to any one of claims 1 to 4, wherein the hot-air heater is housed in the main body.