JPS586169Y2 - electric heating device - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an electric heating device in which power-on of a plurality of heat generating devices with automatic temperature control devices is program-controlled according to the passage of time by a program control device.

Conventionally, as shown in FIG. 1, as an electric heating device, a heat generating device such as a heater 2 is provided in a heated room 1.
is connected to a power source 5 via a power controller 3 and a switch 4 consisting of, for example, a thyristor phase control section, and also connected to a heated room 1.
A temperature detection device 6 having a sensor for detecting the indoor temperature is installed inside the heater 2, and the electric power supplied to the heater 2 is controlled by controlling the conduction angle of the power controller 3 according to the output of the temperature detection device 6. There is something like this.

Incidentally, a plurality of such electric heating devices are sometimes used together in a school classroom, a hotel guest room, or the like.

However, when there are a plurality of heat generating devices, especially tens of heat generating devices, it is not preferable to operate and stop each device in each room because it requires a great deal of labor.

Therefore, as shown in Fig. 1, a variable timer 7 is provided, and the operation is automatically stopped by setting the time of this timer 7, and this variable timer 7 can be operated centrally in one place. is considered.

However, with this configuration, even in cases where the operating and stopping times of the equipment are approximately fixed, such as in a school, the variable timer must be reset each time once the operation is completed, so this timer cannot be used. The drawback was that setting work still required a great deal of labor.

For this reason, it has recently been proposed to store information on the operation, stop, and time of the heat generating device in a memory, and to read out the information as time passes and perform each operation.

A specific example thereof will be explained with reference to FIG.

10 is memory, this memory 10 is core memory,
It refers to devices that electrically write and store data, such as wire memories and IC memories.

To write data into the memory 10, a channel is first designated by the channel designation circuit 11, and the channel number is entered into the counter/register circuit 12.

This counter/register circuit 12 holds the designated channel as a memory address.

Next, the information specifying circuit 13 specifies information on operation, stop, and its time, and inputs it into the register 14.

Then, press the write command switch 9.

Then, the information in the register 14 is stored at a memory address corresponding to the contents of the counter/register circuit 12.

In this way, information on the operation, stoppage, and time of the heating device is stored for all channels.

In other words, the memory 10 stores driving information at each time.

In this state, the timer circuit 15 starts operating as a time elapsed means.

This timer circuit 15 includes a minute pulse oscillator 16. A counter 17 that counts 30 minutes. 2 that counts 30 minutes as 1.
Binary counter 18.1 Binary counter 1 with time l
9, a time display (not shown), and a time adjustment section.

In this case, the contents and outputs of the counters 18 and 19 are in the same digital data format as the time or time data stored in the memory 10.

When the counter 17 generates an output, the flip-flop 020 is set.

When the flip-flop 20 is set, the gate 21 is turned on.

As a result, clock pulses from the clock pulse generator 22 are applied to the counter/register 12 through the gate 21 and counted, and at the same time, after an appropriate time lag (not shown), are applied to the memory 10 as a read command.

As a result, Memo No. 10 becomes the counter/register 1 mentioned above.
According to the count of 2, the information stored for all channels is read into the data register 23.

The output of this datater register 23 is sent to the comparator 24.
is input.

The comparator 24 sequentially compares the time or time information of all channels of the data register 23 with the output of the counters 18 and 19 of the timer circuit 15, that is, the current division, and checks the information on operation and stop at this time. , one output is generated for operation commands issued at the same time.

The output of this comparator 24 is #
It is distributed to each channel line from 1 to #0.

In this case, the distributor 241 is driven via the decoder 25 in synchronization with the count of the counter/register 12.

The output of the channel line is once stored in the output register 26 and then outputted via the amplifier 27 as a power-on command.

Further, when the counter/register 12 finishes counting for all channels, the flip-flop 20 is reset and reading from the memory 10 is also completed.

Thereafter, when the counter 17 generates an output again after some time has elapsed, information is read from the memory 10 again.

Therefore, with such a configuration, it is possible to automatically operate the required number of heat generating devices at a desired time simply by storing operation/stop information and the time or time information in advance in the memory. It will be possible.

However, with such a configuration, if a large number of devices are powered on at a certain time, for example, the devices may become inoperable due to the power supply capacity.

That is, the power supply capacity of electrical equipment is generally determined by the capacity of the electrical equipment that is the load.

Considering this, it is only necessary to prepare equipment with a power supply capacity that can accommodate the capacity when all electric heating devices are operated at the same time.

However, providing such power supply equipment requires an enormous amount of equipment and is economically disadvantageous.

Therefore, conventional methods have been used as follows.

That is, in the case of an electric heating system in which the power supplied to the heater 2 is continuously controlled by the phase control of the power controller 3 as described in FIG. It requires a large amount of electric power until it stabilizes, but once it stabilizes, it can be operated with approximately ÷ the electric power used at the start of operation.

Therefore, in the past, attention has been paid to this fact, and the operating conditions and operation rate of the devices are examined to determine the power supply capacity for the total number of devices within an economical range.

However, in this case, as mentioned above, if a large number of devices are turned on at a certain time, there is a problem that the devices become inoperable due to the power supply capacity.

This invention was made in view of the above circumstances, and when the operating information after a certain period of time from the current time is read out and the number exceeds the number regulated by the power supply equipment capacity, the power supply for the excess number of units is started by starting operation from the current time. To provide an electric heating device which can surely eliminate inconveniences such as inoperability due to equipment capacity.

An embodiment of this invention will be described below with reference to FIG.

In FIG. 3, the same parts as in FIG. 2 are designated by the same reference numerals.

In this case, the main operations of the same parts as described above will be explained in detail.

In this operation, a counter 28 connected to the comparator 24 counts the l output corresponding to the operation command of the comparator 24.

The output of this counter 28 is given to a comparator 29.

The comparator 29 is supplied with the output of the channel number setter 30.

This setting device 30 is used to set in advance the standard number of operable units, which is regulated based on the capacity of the power supply equipment.

On the other hand, when the output of the counter 17 of the timer circuit 15 rises, the plus 1 circuit 35 is set via the differentiation circuit 34.

Then, the adder 36 adds +1 to the outputs of the counters 18 and 19.
, that is, a time output after a certain period of time (30 minutes in this case) from the current time is generated.

Further, the OR circuit 37 is outputted via the differentiating circuit 34.
The flip-flop 20 is set via .

Then, by setting the flip-flop 20, the gate 21 is turned on, and the clock pulses from the clock pulse generator 22 are counted by the counter/register 12, and the information in the memory 10 is read out in accordance with this count.

As a result, the comparator 24 compares the time via the adder 36 with the information in the memory 10.

As a result of this comparison, the comparator 24 generates one output corresponding to an operation command for the heat generating device after a certain period of time.

This output is counted at count 28.

When the content of this count reaches the setting value of the channel number setting device 30, that is, the setting value corresponding to the standard number of operable units that is regulated in advance from the power supply equipment capacity, the comparator 29
An output is generated, and the flip-flop 31 is set by this output via the OR circuit 40.

When this flip-flop 31 is set, the gate 38 is turned on.

Therefore, from now on, the output of the comparator 24 that exceeds the setting of the channel number setter 30 is given to the distributor 241 via the gate 38, and once stored in the output register 26, it is sent via the amplifier 27 as a power-on command. Output.

As a result, more heat generating devices than the above reference number will be operated from the current time.

When the counter/register 22 completes counting for all channels, the flip-flop 31 is reset by the reset signal, the gate 38 is turned off, and the flip-flop 20 is also reset.

After that, when the output of the counter 17 falls, the differentiating circuit 3
The plus 1 circuit is reset via 9.

Therefore, the current time output is given to the comparator 24 by the counters 18 and 19.

Further, the OR circuit 37 is
The flip-flop 20 is set again via .

Therefore, from now on, the information in the memory 10 at the current time is checked.

Then, after a certain period of time, the same operation as described above is repeated, and at this point, the reference number of heat generating devices set by the setting device 30 are operated.

Therefore, with this configuration, if the operating information after a certain period of time from the current time exceeds the number of units regulated based on the power supply capacity, it is possible to start operation for the excess number of units in advance, that is, at the current time. Even if a large number of devices are powered on, it is possible to reliably eliminate the inconvenience of inoperability due to the power supply capacity, and stable automatic operation control can be obtained.

As described above, according to this invention, when the operating information after a certain time from the current time is read out and this exceeds the power supply equipment capacity and the regulated number of units, the excess number of units is operated from the current time, thereby increasing the power supply equipment capacity. It is possible to provide an electric heating device that can reliably eliminate inconveniences such as inoperability.

[Brief explanation of the drawing]

Fig. 1 is a block diagram showing the heat generating unit of the electric heating device;
Figure 2 is a block diagram showing an example of a conventional electric heating device.
FIG. 3 is a block diagram showing an embodiment of this invention. 1... Heated room, 2... Heater, 3
...Power controller, 4... Switch, 5.
...Power supply, 6...Temperature detector, 7...
...Timer, 9...Command switch, 10.
...Timer, 11...Channel specification circuit, 12...Counter and register circuit, 13
... Information designation circuit, 14 ... Register, 15 ... Timer circuit, 16 ... Minute pulse oscillator, 17.18.19 ...・Counter, 20...Flip-flop, 21...
・Gate, 22...Clock pulse generator, 2
3...Data register, 24...Comparator, 241...Distributor, 25...
・Decoder, 26...Output register, 27...
...Amplifier, 28...Counter, 29...
...Comparator, 30...Channel setter, 31...Flip-flop, 34.39
... Differential circuit, 35 ... Plus 1 circuit, 36 ... Adder, 37.40 ... OR circuit, 38 ... Gate .

Claims (1)

[Scope of utility model registration request] The operation of a plurality of heating devices with automatic temperature control devices is program-controlled according to the passage of time by a program control device, wherein the storage means stores operating information of the heating devices at each time, and a time-lapse device. and reading means for reading from the storage means the number of heat generating devices that will be operated after a certain time from the current time by the time elapse means, and the number of heat generating devices to be operated after a certain time from the current time is read out from the storage means, An electric heating device characterized in that when compared with a set reference number, if the number of operating units exceeds the reference number, heat generating devices exceeding the reference number are operated from the current time.