JPH04136462U - Warm air heater control device - Google Patents

Abstract

(57) [Summary] [Purpose] To achieve good ignition when restarting a hot-air heater that operates on and off, and to reduce power consumption. [Configuration] The microcomputer 8 measures the length of the off period of the hot air combustion heater 1, and if the measured time is within the value generated by the reference time generation circuit, that is, the period of the extinguished state is short. Only when the temperature of the heater itself is maintained at a relatively high temperature, the preheating time when restarting the heater is quickly cut down, the ignition heater energization time is shortened, and the heating operation is started early.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention relates to a control device for a hot air heater that operates on and off to adjust temperature. It is.

0002

[Conventional technology]

Conventionally, when the room temperature reaches a predetermined value due to heating operation of a hot air heater, the control The device had turned off the heating operation of the heater. And if the room temperature falls below a predetermined value At the same time, the control device turns on the ignition heater of the heater and starts the heating operation of the heater. The timer circuit for driving was turned on.

0003 The heating operation of the heater starts after a predetermined period of time after this timer circuit is turned on, that is, the ignition heater The burner will turn on after a predetermined period of time, so the burner will reach the temperature required for ignition during that time. It is said that good ignition can be completed when the heat generation operation is turned on. It was.

0004

[Problem that the idea aims to solve]

However, in the conventional example mentioned above, the heater has to be restarted to adjust the temperature. A constant value was always given as the timer time of the timer circuit that was turned on when . Therefore, there are long and short periods when the heater is off, and the extent to which the temperature of the heater itself drops If there is a difference, there may be a large variation in the temperature at the start of the heat generating operation. If the ignition heater is on for too long, power consumption will increase, and If the length was too short, the ignition performance would deteriorate.

[0005]

[Means to solve the problem]

In order to solve the above-mentioned problems, this invention uses a control device to control the off-time of the hot air heater. In addition to measuring the length of time, if the measured period is within a certain standard time, In other words, if the extinguishment period is short and the temperature of the heater itself is kept relatively high. If so, shorten the timer time of the timer circuit that is turned on when the heater is restarted. Turn on the heat-generating operation to ignite quickly.

[0006]

[Effect]

When the hot air heater turns on and off to adjust the temperature, the control device If the measured value is equal to or higher than the standard value, the temperature of the heater is Since it is relatively cold, the timer for preheating is set when the heater is restarted. The timer is turned on without shortening the timer time, and the temperature of the heat generating means is sufficiently high. Turn on the heat generation operation.

[0007] On the other hand, if the measured value is within the standard value, the temperature of the heating means is relatively high. Assuming that, shorten the timer time of the timer circuit and turn it on, and reduce the length of the ignition heater. Prevents time energization.

[0008]

【Example】

An embodiment of the present invention will be described below with reference to the drawings.

[0009] FIG. 1 is a circuit diagram of a hot air combustion hot air heater which is an embodiment of the present invention. This figure 1 , 1 is a commercial AC power supply, 2 is a hot air combustion heater, and 3, 4, 5, 6, and 7 are The burner, fuel pump, ignition heater, combustion fan, and temperature It is a wind fan, and 8 is a microcontroller that controls the combustion heater 2. It's a computer. 9 is the heating setting temperature for this microcomputer 8. 10 is a heating temperature information setting circuit for manually setting information related to heating start time; A timer setting circuit 11 manually sets information, and a timer setting circuit 11 sets the temperature in the room where the heater 1 is installed. A room temperature information generation circuit 12 detects and generates information regarding the room temperature; 12 is a circuit for generating reference time information; The reference time information generating circuit 13 generates reference time information according to instructions from the microcomputer. The aforementioned burner 3, fuel pump 4, ignition heater 5, combustion fan 6, and hot air This is a drive circuit that drives the fan 7.

0010 Next, the operation of this configuration will be explained.

[0011] First, in order to perform heating, the desired heating temperature is set using the heating temperature information setting circuit 9. When the heater is started, the microcomputer 15, which is the control circuit, The combustion fan 6 and the ignition heater 5 are turned on via the circuit 13. And the microphone in advance For example, the predetermined time set in the timer function built into the computer 8 is 2. When the time period has elapsed, the operation of the ignition heater 5 is stopped via the drive circuit 13. In addition, the fuel pump 4 and warm air fan 7 are turned on, and the room temperature information generation circuit 11 is activated as desired. Combustion continues until temperature information corresponding to the set temperature is generated.

0012 After that, when the room temperature information generation circuit 11 detects the set temperature and generates information, the control circuit The microcomputer 8, which is a The combustion fan 6 is sequentially deactivated, the combustion operation of the heater 1 is stopped, and the temperature is The operation of the wind fan 7 is also stopped.

[0013] When the combustion operation stops, the microcomputer 8 enters the off period. The elapsed time until the combustion operation is turned on again based on the information generated by the temperature information generation circuit 11. Start measuring the elapsed time. Then, the measured time and the reference time information generation circuit 12 Compare the standard time of occurrence, for example 5 minutes, and determine whether it is within or longer than that. Ru.

[0014] If the measured value is 5 minutes or more, 2 minutes after the ignition heater is turned on, that is, the first time described above. As with the first startup, wait for 2 minutes until the temperature of burner 3 has risen sufficiently, then turn on the fuel pump. Turn on 4 and get a good ignition. On the other hand, if the measured time is less than 5 minutes For example, one minute after the ignition heater is turned on, the fuel pump 4 is turned on, and the ignition heater is turned on. To reduce power consumption by shortening the energization time of the device.

[0015]

[Effect of the idea]

As described above, according to the present invention, the hot air heater can be turned on and off to adjust the temperature. When restarting, measure the off period and adjust the preheating time after restart depending on the length of the off period. As a result, good ignition is achieved, power consumption is reduced, and the time required to start ignition is shortened. This has the effect of reducing room temperature fluctuations because the time is shorter.

[Brief explanation of drawings]

FIG. 1 is a circuit diagram of an embodiment of the present invention.

[Explanation of symbols]

2 Hot air combustion heater 4 Fuel pump 5 Ignition heater 6 Combustion fan 7 Warm air fan 8 microcomputer 11 Room temperature information generation circuit 12 Reference time information generation circuit 13 Drive circuit

Claims (1)

[Scope of utility model registration request] [Claim 1] An oil hot air heater (2) that is equipped with a heat generating means (3) and an ignition heater (5) and is ignited after a preheating mode.
a circuit (11) that generates room temperature information; a circuit (12) that generates reference time information; and a circuit (12) that generates information necessary for the on/off operation of the heater based on the information of the room temperature information generation circuit. In addition to generating preheating completion information for the ignition heater at a first predetermined time point after the heater starts to turn on, the time is measured during the heater's off period, and the measured value is used as a reference for generation by the reference time information generating circuit. a control circuit (8) that generates preheating completion information for the ignition heater at a second predetermined time point shorter than the first predetermined time point after the start of the on-operation of the heater when the heater is turned on; 1. A control device for a warm air heater, comprising a drive circuit (13) that drives the heat generating means and the ignition heater based on generated information.