JPH0658631A - Heat accumulation type heater - Google Patents

Abstract

PURPOSE:To improve operability by a control in which a fan is driven to send air to a heat accumulating block and then hot air into a room so that room temperature at each time can realize a set room temperature at each of the time, whereby it becomes unnecessary to repeat an operation every day to set a low room temperature before going to bed and to reset a high room temperature after getting up. CONSTITUTION:A heat accumulating block 12 is covered with a heat insulating material 30 on side surfaces, with another heat insulating material 32 on an upper surface, and with a further heat insulating material 34 on a lower surface, and a heater 14 is embedded within the heat accumulating block 12. Outdoor air OW taken in through a suction port 36 by a fan 16 is heated to be hot air while flowing along the outside of the heat accumulating block 12, and then discharged out of a diffuser 38. In a room temperature setting means 22, a room temperature at each time is preset, the heat accumulating block 12 is heated by the heater 14, and a time counting means 20 counts time. A fan control means 24 controls the fan 16 to adjust hot air to be sent, so that the room temperature can realize the set value at each of the time. Thus, operability of room temperature setting can be improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat storage heater using late-night power.

[0002]

2. Description of the Related Art The unit price of electric power is reduced in the midnight electric power time zone from 11:00 pm to 7:00 am in order to eliminate the imbalance between the power load ratios in the daytime and the nighttime. Therefore, midnight power is used to store heat in the heat storage block, and heating is performed using the heat storage block as a heat source during the daytime.

A conventional heat storage heater of this type has a heat storage block that stores heat, a heater that heats the heat storage block by using midnight power, and a fan that ventilates the heat storage block to send warm air indoors. Room temperature measuring means for measuring room temperature,
It is provided with a room temperature setting means for setting only one room temperature and a fan control means for controlling the fan so that the room temperature measured by the room temperature measuring means becomes the room temperature set by the room temperature setting means. It was

[0004]

By the way, from the viewpoint of comfort, power saving, etc., the room temperature is set to have a high living time zone and a low sleep time zone. With conventional heat storage heaters, only one room temperature can be set, so the operation of setting a low room temperature before going to bed and resetting it to a high room temperature after waking up was repeated every day. Therefore, the operation was extremely troublesome. Therefore, an object of the present invention is to provide a heat storage heater with improved operability.

[0005]

A heat storage heater according to the present invention includes a heat storage block that stores heat, a heater that heats the heat storage block by using midnight power, and a warm air that is ventilated through the heat storage block. Fan, a room temperature measuring means for measuring the room temperature, a clock means for measuring the time, a room temperature setting means for setting the room temperature for each time, and a room temperature measured by the room temperature measuring means is set by the room temperature setting means. And a fan control means for controlling the fan so that the temperature becomes room temperature at each time. Here, the late-night power includes the night-time power in the time-based light charge system.

[0006]

In the room temperature setting means, the room temperature for each time is preset. For example, the set value of the life time zone is high and the set value of the sleep time zone is low. The heat storage block is heated by the heater, and the clock means measures the time. The fan control unit controls the fan to adjust the warm air to bring the room temperature to a value set for each time.

[0007]

1 is a functional block diagram showing the basic construction of a heat storage heater according to the present invention. The heat storage heater 10 includes a heat storage block 12 that stores heat, a heater 14 that heats the heat storage block 12 using midnight power, and a heat storage block 12
A fan 16 for ventilating the room to send warm air into the room, a room temperature measuring means 18 for measuring the room temperature, and a clock means 2 for measuring the time t.
0 and room temperature setting means 22 for setting the room temperature at each time t
And a fan control means 24 for controlling the fan 16 so that the room temperature M (t) measured by the room temperature measuring means 18 becomes the room temperature S (t) at each time t set by the room temperature setting means 22. It is a thing.

FIG. 2 is a sectional view showing an embodiment of the heat storage heater according to the present invention. The heat storage block 12 has a side surface covered with a heat insulating material 30, an upper surface covered with a heat insulating material 32, and a lower surface covered with a heat insulating material 34. The outer surfaces of the heat insulating materials 30, 32, 34 are covered with a housing 35 made of a metal plate. A heater 14 is embedded in the heat storage block 12. An intake port 36 and a blower port 38 are provided below the housing 35, and the fan 16 is installed in the intake port 36. Outside air OW taken in from the intake port 36 by the fan 16
Is discharged as hot air from the blower port 38 while traveling around the outer surface of the heat storage block 12.

FIG. 3 is a circuit diagram showing an embodiment in which the heat storage heater according to the present invention is constructed by using a microcomputer. Hereinafter, a detailed description will be given with reference to FIGS. 1 to 3.

The room temperature measuring means 18, the clock means 20, the room temperature setting means 22 and the fan control means 24 are realized by a programmed microcomputer 40.
The microcomputer 40 includes a CPU 42 and a ROM 4
4, RAM 46, input interface 48, output interface 50 and the like.

A thermistor TH, operation switches SW1, SW2, ..., SWn, and an oscillation circuit 52 are connected to the input interface 48. The thermistor TH has a positive characteristic that its resistance value increases as the temperature rises, is attached to the outer surface of the housing 35, and has a room temperature M (t).
To the room temperature measuring means 18. The oscillation circuit 52 uses a crystal oscillator and generates a reference pulse and outputs it to the clock means 20.

The output interface 50 is connected with relay driving transistors Tr1 and Tr2. The heaters 14, 14 embedded in the heat storage block 12 are
Each of them is connected in parallel to an AC power source 54 of 200V.

A normally open contact RY1a of the relay RY1 is interposed between the heater 14 and the AC power supply 54. The fan 16 is connected to an AC power supply 56 of 100V. A normally open contact RY2a of the relay RY2 is inserted between the fan 16 and the AC power supply 56. A direct current power source 58 that rectifies alternating current to obtain a direct current voltage Vd is connected to the alternating current power source 56.

The resistors R1 and R2 are for current limiting, and the resistor Rth is for voltage dividing.

FIG. 4 is a flow chart showing the operation of an embodiment of the heat storage heater according to the present invention. Hereinafter, a detailed description will be given with reference to FIGS. 1 to 4.

From the time of waking up t1 to the time of sleeping t
Up to 2, the sleeping time period is from bedtime t2 to wakeup time t1. The room temperature in the living time zone is T1, and the room temperature in the sleeping time zone is T2. That is, S (t1 to t2) =
T1 and S (t2 to t1) = T2. To show specific numerical values, t1 is 7:00 am, t2 is 11:00 pm, T1 is 22 ° C., and T2 is 15 ° C.

First, the operation switches SW1, SW2, ...
By selecting SWn and pressing it several times, t1, t2,
T1 and T2 are set to desired values [step 101].
These set values are stored in the room temperature setting means 22 such as the RAM 46 via the input interface 48. If the end switch (one of the operation switches SW1 ...) Is not pressed [step 102], the time t is measured [step 103] and the room temperature M (t) is measured [step 1].
04]. t and M (t) are stored in, for example, the RAM 46 via the input interface 48.

Then, it is determined whether or not t1 <t <t2 is C.
The determination is made by the fan control means 24 such as the PU 42 [step 105]. If t1 <t <t2, M (t) <T1
It is judged by the CPU 42 whether or not [Step 10
6], if M (t) <T1, the fan 16 is turned on (or kept on) [step 107], M (t)
If it is not T1, the fan 16 is turned off (or kept off) [step 108]. Also, t1 <t <t2
Otherwise, the CPU 42 determines whether M (t) <T2.
In step [109], if M (t) <T2, the fan 16 is turned on (or left on) [step 110]. If not M (t) <T2, the fan 16 is turned off (step 110). Or turn it off) [Step 11
1]. The on / off control of the fan 16 is performed by turning on / off the transistor Tr2 through the output interface 50 to close and open the normally open contact RY2a of the relay RY2.

Then, the process returns to step 102 again.

In the midnight power time, when the CPU 42 determines that the time t is the midnight power time, the output interface 50 outputs an ON signal to the transistor Tr1 to turn on the transistor Tr1. Then, the relay RY1 is driven to close the normally open contact RY1a, and the heater 14 is energized to start heating the heat storage block 12. Further, the thermistor or the like (not shown) prevents the heat storage block 12 from overheating.

[0021]

According to the heat storage heater according to the present invention, the room temperature can be set for each time, and the fan can be controlled to reach the room temperature for each set time. There is no need to repeat the operation of resetting the room temperature to a high temperature after getting up, and the operability can be improved.

[Brief description of drawings]

FIG. 1 is a functional block diagram showing a basic configuration of a heat storage heater according to the present invention.

FIG. 2 is a sectional view showing an embodiment of the heat storage heater according to the present invention.

FIG. 3 is a circuit diagram showing an embodiment when the heat storage heater according to the present invention is configured using a microcomputer.

FIG. 4 is a flowchart showing the operation of an embodiment of the heat storage heater according to the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 ... Heat storage heater 12 ... Heat storage block 14 ... Heater 16 ... Fan 18 ... Room temperature measuring means 20 ... Clock means 22 ... Room temperature setting means 24 ... Fan control means

Claims (1)

[Claims] 1. A heat storage block for storing heat, a heater for heating the heat storage block by using midnight power, a fan for ventilating the heat storage block to send warm air to the room, and a room temperature measuring means for measuring room temperature. , Clock means for measuring the time, room temperature setting means for setting the room temperature for each time, and the fan so that the room temperature measured by the room temperature measuring means becomes the room temperature for each time set by the room temperature setting means. A heat storage heater having a fan control means for controlling.