KR970011017B1 - Hot air heater - Google Patents

Abstract

A Hot air heater having heater housing(1), temperature sensor, temperature set up device(3), and controller(4) is disclosed. The heater housing(1) has heat source or blower and gush hot air to room from an exhaust nozzle. The temperature sensor senses room temperature, and the temperature set up device(3) sets up room temperature. The controller(4) controls heating capacity of the heating source by the differences between set temperature and room temperature. And the controller(4) close a bodily sensation controlling at operation beginning time by making bodily sensation set temperature as a target value. The bodily sensation setting temperature is determined by sensed room temperature and rising limit of sensed room temperature at operation beginning time. Thereby, it is possible to provide sufficient warm sensation to user by heat source heating in heating capacity corresponds to bodily sensation temperature at the operation beginning time.

Description

Hot air heater

1 is a structural diagram of a gas warm air heater according to the first and second embodiments of the present invention,

2 is the convexity of the gas hot air heater,

3 is a flow chart for explaining the operation of the gas hot air heater according to the first embodiment of the present invention,

4 is a graph showing characteristics of elapsed time-room temperature, elapsed time-diminishing setting of a gas warm air heater according to the first embodiment of the present invention;

5 is a flow chart for explaining the operation of the gas hot air heater according to the second embodiment of the present invention,

6 is a graph showing characteristics of elapsed time-room temperature and elapsed time-differentiation setting of a gas warm air heater according to a second embodiment of the present invention.

* Explanation of symbols for the main parts of the drawings

1: heater housing 2: the Easter (room temperature sensor)

3: temperature setter 4: controller

11 gas burner (heating source) 12 convection fan (blower)

13: hot air 131: air outlet

T: Room temperature for detection T _l : Diminished set temperature

T ₀ : Set temperature

T _s : Detection room temperature at the start of heating operation (detection room temperature at the start of heating operation)

△ T: Car A, B: Gas Hot Air Heater (Hot Air Heater)

The present invention relates to a warm air heater.

And a blower having a spout for blowing hot air into the room, a heating source disposed within the chasing, and a blower disposed in the chasing and directing the air further heated by the heat source to the spout as hot air. And a warm air heater having a room temperature sensor for detecting a room temperature, a temperature setter for setting a room temperature, and a controller for heating the heating source with a heating capacity according to the difference between the set temperature and the detected room temperature.

However, the conventional warm air heater has a mismatch as shown below.

When the floor or the wall is cold and at the same time the room temperature is low, since the haptic temperature is lowered, the user cannot sufficiently feel the heating feeling at the beginning of heating operation.

It is an object of the present invention to provide a hot air heater, in which a heating source is heated at a heating capacity corresponding to a sensed temperature at an early stage of heating operation so that a user can feel a sufficient heating feeling.

MEANS TO SOLVE THE PROBLEM In order to solve the said subject, this invention employ | adopted the following structures.

(1) A heating source and a blower are provided. A controller that controls the heating capacity of the heat source based on the difference between the heater housing that blows the warm air from the spout to the room, the room temperature sensor that detects room temperature, the temperature setter that sets the room temperature, and the set temperature set by the temperature setter. In the warm air heater provided with the controller, the controller performs haptic control at the beginning of the heating operation with the target temperature set as the target value determined based on the detection room temperature at the start of the heating motion and the rise degree of the detection room temperature at the beginning of the operation.

(2) With the configuration of (1) above, operation was started when the detected room temperature reached the set temperature, and haptic setting temperature correction means for reducing the haptic setting temperature by the predetermined temperature by the predetermined temperature was provided to the set temperature.

(3) With the configuration of (1) above, the duration of the haptic control is determined based on the degree of rise of the detection room temperature at the start of heating operation and the detection room temperature at the beginning of operation.

(About paragraph 1)

The controller performs haptic control at the beginning of operation with the target value as the target sensation setting temperature determined based on the detection room temperature at the start of heating operation and the degree of rise of the detection room temperature at the beginning of operation.

That is, the user can obtain a sufficient heating feeling because the heating source heats with the heating capacity corresponding to the bodily temperature at the beginning of the heating operation.

(About paragraph 2)

Since the haptic temperature tends to gradually increase with the progress of the heating operation, the haptic setting temperature correction means reduces the haptic setting temperature to the set temperature every predetermined time.

Therefore, since the haptic control can be performed in accordance with the rise of the haptic temperature of the user, in addition to the effect of the above-mentioned 1, during the haptic control, the user can obtain a proper sense of heating without feeling excessive heating feeling.

(About ship 3)

The length of the duration of haptic control is determined based on the degree of detection of the room temperature at the start of heating and heating and the degree of detection of the room temperature at the beginning of the start of heating.

Therefore, haptic control can be performed only during the period in which haptic control is necessary, and the user can obtain a proper sense of heating without feeling excessive heating feeling.

Further, the haptic control according to claims 1 to 3 indicates a state in which the haptic setting temperature is set as a target value and the heating ability of the heating source is controlled.

The first embodiment (item 1 + 2) of the present invention will be described with reference to FIGS.

The gas hot air heater A shown in FIG. 1 is provided with the gas burner 11 and the convection fan 12, the heater housing 1 which blows the hot air 13 into the blowing booth l31, and room temperature. And a controller (4) for controlling the rotation of the convection fan (12) or the input of the gas setter (11) and the temperature setter (3) for setting the air conditioning room temperature.

Inlet ports 141 and 412 of the indoor air 14 used for the mixing and combustion of the heater housing 1 are provided on the upper part of the rear face, and a blower outlet 131 is provided on the lower part of the front face. A filter 140 for removing dust in the room is detachably disposed at the suction ports 141 and 142, and a louver 132 is provided at the jet port 131 to change the blowing direction of the warm air 13. In addition, 15 is a duct which communicates with the inlet port 141 and the jet port 131, and 16 is an air induction path which guides the room temperature air 14 to the gas burner 11. As shown in FIG.

The gas combustor 11 includes a mixing chamber 111 for mixing gas ejected from the nozzle 161 disposed downstream of the air flow path 16 and indoor air 14 guided by the air flow path 16. The combustion plate 112 made of a ceramic, and the combustion body 115 in which the ignition electrode 113, the thermocouple 114, etc. are arrange | positioned are provided. The nozzle 161 is provided at the tip of the gas pipe g in which the solenoid valves 121 and 122 and the proportional valve 123 are arranged in this order.

The convection fan 12 is composed of an impeller 121 pivotally mounted in the duct 15 downstream from the gas burner 11 and a convection motor 122 for driving the impeller 121.

As shown in FIG. 2, the controller 4 incorporating a microcomputer includes an operation control unit 41 which controls the point, fire extinguishing, etc. of the gas burner 11 based on the operation of the operation switch SW, and combustion. A temperature control controller 42 for determining the level, a proportional valve drive circuit 43 for controlling the energization current to the proportional valve l23, and a fan drive circuit 44 for controlling the energization amount to the AC motor 122; do. Further, 40 denotes a display of the 7 segment type, emitting a predetermined temperature (T ₀₎ and detecting the room temperature (T).

The operation control unit 41 energizes the ignition electrode 113 for a predetermined time after the operation switch SW is turned on for 4 seconds, and the solenoid valves 121 and 122 are brought into an open valve state to thereby open the gas burner 11. Ignite) and heating operation starts. When the operation switch SW is turned off, the operation stop signal is sent out, and the gas combustion chamber 11 is extinguished with the solenoid valves 121 and 122 in the closed valve state. In addition, when the output voltage of the thermocouple 114 falls below a predetermined value during the combustion of the gas burner 11, the gas burner 11 is extinguished by using the solenoid valves 121 and 122 as closed valves.

The temperature control controller 42 operates as shown in the flowchart of FIG. 3, and during normal control, the set temperature T ₀ set by the temperature setter 3 and the air flow path 16 near the inlet port 142. The input amount of the gas burner 11 is determined on the basis of the temperature difference from the current detection room temperature T detected by the dummyster 2 arranged in Fig. 2), and the detection room temperature T is the set temperature T ₀ . The combustion amount of the gas burner 11 is controlled so as to reach.

In the haptic control at the beginning of operation, the detection room temperature (Ts) at the start of heating operation, the detection room temperature (Ts) at the time of 5 minutes from the start of operation, the detection room temperature (Ts) at the start of heating operation, and Based on the difference (△ T), the overshoot amount (χbit) is obtained using the graph data shown in Table 1, and this value is multiplied by 1/3 to set the overshoot value (deg), and the set temperature (T ₀ ) It calculates and sets it as the bodily sensation set temperature (T _l ), and determines the input amount of the gas burner (11) based on the temperature difference between the sensation set temperature (T _l ) and the present detection room temperature (T). The combustion amount of the gas burner 11 is controlled so as to reach this haptic set temperature T _l .

Table 1

3bit = r ℃ (bit)

In addition, the numerical value (bit value) of Table 1 was made into 8 steps of 1 bit-8 bit (about 0.33 degreeC-2.67 degreeC) by performing the fuzzy judgment process shown below.

(1) The detection room temperature (T) (Ts) at the start of heating operation is high (for example, 16 ° C) and at the same time, the detection room temperature (T) at the time of 5 minutes from the start of the heating operation and the detection room temperature at the start of the heating operation ( When the difference [Delta] T from Ts) is small (for example, 0deg), the overshoot amount is reduced (for example, 1 bit).

(2) The detection room temperature (T) (Ts) at the start of heating operation is low (for example, 4 ° C) and at the same time, the detection room temperature (T) at the end of 5 minutes from the start of heating operation and the detection room temperature at the start of heating operation ( When the difference [Delta] T from Ts) is large (for example, 8 deg), the overshoot amount is increased (for example, 8 bits).

③ The detection room temperature (T) (Ts) at the start of heating operation is high (for example, 14.5 ° C, 13 ° C, 11.5 ° C), and the detection room temperature (T) at the time of 5 minutes elapses from the start of heating operation and at the start of heating operation When the difference (ΔT) from the detection room temperature (Ts) is large (for example, 7deg, 6deg, 5deg), or the detection room temperature (T), (Ts) at the start of heating operation is low (for example, 8.5 ° C, 7 ° C, 5.5 ° C), when the difference (ΔT) between the detection room temperature T at the time of 5 minutes elapsed from the start of heating operation and the detection room temperature Ts at the start of heating operation is small (for example, 3deg , 2deg, 1deg) or the detection room temperature (T) at the start of heating operation (T), (Ts) is normal (for example, 101 ° C), and the detection room temperature (T) at 5 minutes after the start of heating operation and the heating operation start When the difference [Delta] T from the detection room temperature Ts in the system is normal (for example, 4 deg), the overshoot amount is set to the middle (for example, 4 bits).

The proportional valve driving circuit 43 energizes the proportional valve 123 with a current according to the heating capacity determined by the temperature regulation control unit 42.

The fan drive circuit 44 flows a current in which the fan speed suitable for the heating capacity determined by the temperature regulating control section 42 is passed to the AC moder 122, and at the end of the post purge period when the operation switch SW is turned off during the heating operation. Stop energizing

Next, the operation of the controller 4 including the temperature control controller 42 will be described with the flowchart of FIG. 3 and the elapsed time-detection room temperature characteristic graph of FIG.

In step S1, it is determined whether the operation switch SW is on, and if the operation switch SW is on (YES), the flow advances to step S2.

Room temperature is detected by step S2, and it is set as detection room temperature Ts at the time of a heating operation start.

Thermostatic control unit 42 in Step S3 are (a set temperature (T _0), - detecting the room temperature (T)) on the basis of the input and determines the amount of the gas burner (11). Further, the segment of the indicator 40 displaying the set temperature T ₀ and the segment displaying the detected room temperature T are turned on.

In step S4, the 5-minute timer is started (this is the state 51 in Fig. 4).

If it is determined in step S4 whether the 5-minute timer has timed up (YES), the flow proceeds to step S6 (state 52).

In step S6, the difference DELTA T between the current light room temperature T and the detection room temperature Ts at the start of heating operation is obtained. Detection room temperature (Ts) at the start of difficulty operation at step S7, (detection room temperature (T) at 5 minutes since the start of operation)-(detection room temperature (Ts) at the start of heating operation) = (difference From (△ T)), the sensory setting temperature ((χbit value)) is determined based on Table 1, 1/3 of this is applied to the setting temperature (T ₀ ), and the sensory setting temperature (T _l ) (℃ value) )

Temperature adjustment in the step S8, control unit 42 (haptic set temperature (T _l), - detecting the room temperature (T)) on the basis of the input and determines the amount of the gas burner (11).

Detection room temperature (T) in step S9 It is determined whether or not the set temperature T ₀ is satisfied, and if it is satisfied (YES), the flow proceeds to step S10.

In the snap S10, the segment of the indicator 40 displaying the snow scene temperature T ₀ is kept lit, the segment displaying the detection room temperature T is made flashing, and the haptic control is being performed.

Start the 5 minute timer on stem S11 (state 53).

In step S12, it is determined whether the 5-minute timer has timed up, and if it has timed up (YES), the flow proceeds to step S13.

Setting temperature (T ₀ ) in step S13 If you are satisfied to determine whether or not the haptic set temperature (T _l) satisfies -1deg (YES), the flow goes to step S14, it is not satisfied, the process proceeds to step S18.

Thermostatic control unit 42 in step S14 is (set temperature (T _0), - detecting the room temperature (T)) on the basis of the input and determines the amount of the gas burner (11).

The 5-minute timer is started at step S15.

If it is determined in step S16 whether the 5-minute timer has timed up (YES), the flow proceeds to step S17.

In step S17, the segment of the indicator 40 indicating the set temperature T ₀ is kept lit, and the segment indicating the detected room temperature T is turned on to be returned to normal control (state 55). .

In step S18 to be executed by a (haptic set temperature (T _l) = diminishing the set temperature (T _l) -1deg) reducing 1 ℃ the haptic settings on returns to the step S11 (state 54).

The gas hot air heater A of this embodiment has the following advantages.

(A) In the initial stage of operation, the gas-heated air heater (A) calculates the overshoot amount (χbit) by using the table data of FIG. 1 at the beginning of operation, and sets this to an overshoot value (deg) by 1/3. The temperature (T ₀ ) is added to set the reduced set temperature (T _l ), and the input amount of the gas burner (11) is determined based on the temperature difference between the reduced set temperature (T _l ) and the present detection room temperature (T). Then, the sensory control is performed so that the detection room temperature T reaches the sensory setting temperature T _l , thereby controlling the combustion of the gas combustor 11.

Therefore, even if the user's sensation temperature is varied due to the difference in temperature rising rate of room temperature or the difference in room temperature at the start of heating temperature, etc. The user can get a sufficient heating feeling because the dripping control is carried out at the haptic temperature.

(B) Detection room temperature (T) When 5 minutes have elapsed from the set temperature (T ₀ ) (state 53), the sensory set temperature (T _l ) is decreased by 3 bits (1 deg) (state 54), and the sensory set temperature (T _l ) is set every 5 minutes. The sensory set temperature (T _l ) is lowered by 3 bits (1deg) until (T ₀ ). In addition, as the heating operation proceeds, the user's sense of temperature tends to gradually increase.

For this reason, haptic control is performed according to the rise of the haptic temperature of the user, so that the user can obtain a proper sense of heating without feeling excessive ninja feeling.

(C) Maintain the lighting state of the segment indicating the set temperature (T ₀ ) for the state 53 to state 55, and indicate that the sensory control is being performed by turning the segment of the indicator 40 indicating the detection room temperature (T) into the blinking state. Since the user only sees once, it can be seen that the gas hot air heater A is in haptic control.

Next, a second embodiment (corresponding to claim 1 + 3) of the present invention will be described based on FIG. 5, FIG. In addition, since the basic structure of the gas warm air heater B is similar to that of the gas warm air heater A, the differences will be described.

The temperature control control part 42 operates as shown in the flowchart of FIG. 5, and during normal control, the set temperature T ₀ and the suction port (set by the temperature setter 3) like the gas hot air heater A are controlled. 142 Determining the input amount of the gas combustor 11 on the basis of the temperature difference from the current detection room temperature T detected by the dummyster 2 disposed in the air induction path 16 near the detection room temperature T The combustion amount of the gas burner 11 is controlled so that) reaches a set temperature T ₀ .

In the initial control start-up control, the difference between the detection room temperature Ts at the start of operation and the detection room temperature T at the time of 5 minutes from the start of operation and the detection room temperature Ts at the start of operation From (ΔT), overshoot amount (χbit) and duration time (K) of haptic control are calculated using the table data of Tables 1 and 2. Then, the overshoot amount (χbit) is multiplied by 1/3 to make the overshoot value (deg), and the set temperature (T ₀ ) is added to the reduced set temperature (T), and the reduced set temperature (T _l ) And the input amount of the gas combustor 11 is determined based on the temperature difference between the current detection room temperature T and the current detection room temperature T. After the detection room temperature T reaches the set temperature T ₀ , the duration time (for K) again, The combustion of the gas combustor 11 is controlled so that the detection room temperature T reaches the sensory setting temperature T _l .

K (seconds)

In addition, the duration time K shown in Table 2 was determined by performing the purge tube step processing shown below, and was made into 8 steps of 75 second-1125 second.

(1) Detection room temperature T at the start of heating operation (T) (Ts) is high (for example, 16 ° C.) and detection room temperature T at the time of 5 minutes from the start of heating operation and detection room temperature at the start of heating operation. When the difference [Delta] T from Ts is small (e.g., 0deg), the duration time K of haptic control is shortened (e.g., 75 seconds).

(2) The detection room temperature T at the start of heating operation (T) (Ts) is low (for example, 4 ° C.) and the detection room temperature T at the time of 5 minutes from the start of the heating operation and the detection room temperature at the start of the heating operation. When the difference [Delta] T from Ts is large (for example), the duration time K of haptic control is lengthened (for example, 1125 seconds).

(3) The detection room temperature (T) (Ts) at the start of heating operation is high (for example, between the detection room temperature (T) at the 5-minute result from the onset of heating and detection room temperature (Ts) at the start of heating operation). When the difference ΔT is large (e.g., 7deg, 6deg, 5deg), the detection room temperature (T), (Ts) at the start of heating operation is low (e.g., 8.5 deg. C, 71 deg. C, 5.5 deg. C) or start of operation When the difference (ΔT) between the detection room temperature (T) at 5 minutes and the detection room temperature (Ts) at the start of heating operation is small (for example, 3deg, 2deg, ldeg) or at the start of heating operation The difference between the detection room temperature T and the detection room temperature Ts at the time of the start of heating operation and the detection room temperature T and Ts are normal (for example, 10 degreeC) 5 minutes from the start of a heating operation. When (T) is normal (for example, 4 deg), the duration K of the haptic control is set to normal (for example, 600 seconds).

Next, the operation of the controller 4 including the temperature regulating control section 42 will be described with the elapsed time-detecting room temperature characteristic graph of FIG. 5 and a flowchart.

In step S1, it is determined whether the operation switch SW is on, and if the operation switch SW is on (YES), the flow advances to step S2.

Room temperature is detected by step S2, and it is set as detection room temperature Ts at the time of a heating operation start.

In step S3, the temperature control controller 42 determines the input amount of the gas burner 11 on the basis of the set temperature T ₀ -detection temperature T. An indicator which displays the set temperature T ₀ . The segment of 40 and the segment indicating the detection room temperature T are turned on.

In step S4, the 5-minute timer is started (this is the state 61 in FIG. 6),

In step S5, it is determined whether or not the 5-minute timer is up, and if it is timed up (YES), the flow proceeds to step S6 (state 62).

In step S6, the difference DELTA T between the current detection room temperature T and the detection room temperature Ts at the start of operation is obtained.

Detection room temperature Ts at the start of operation in step S7 and (room temperature Ts at the start of heating operation-detection room temperature Ts at the start of heating operation 5 minutes after the start of heating operation) = difference (ΔT From the table 1), determine the haptic set temperature (χ (bit) value), and multiply this by 1/3 to add the set temperature (T ₀ ) to find the sensation set temperature (T _l (℃)). The duration time K (seconds) of haptic control is determined based on Table 2 from the difference ΔT and the detection room temperature Ts.

Thermostatic control unit 42 at step S8 is (diminishing the set temperature (T _l), - detecting the room temperature (T)) on the basis of the input and determines the amount of the gas burner (11).

Detection room temperature (T) in step S9 It is judged whether or not the set temperature T ₀ is satisfied (YES), and the flow proceeds to step S10.

In step S10, the segment of the indicator 40 displaying the set temperature T ₀ is kept lit, and the segment displaying the detected room temperature T is made flashing to indicate that the sensory control is being performed.

In step S11, the timer which set the time constant to duration time K is started (state 63).

If it is determined in step S12 whether the timer has timed up (YES), the flow proceeds to step S13 (state 64).

In the depth S13, the temperature control controller 42 determines the input amount of the gas burner 11 based on (set temperature T ₀ -detection temperature T).

In step S14, the segment of the indicator 40 displaying the set temperature T ₀ is kept turned on, and the segment indicating the detected room temperature T is turned on and returned to normal control (state 65).

The gas hot air heater B of this embodiment has the following advantages.

(D) In the initial stage of operation, the gas warm air prevention prevention (B) uses the table data in Table 1 to obtain the overshoot amount (χbit), which is 1/3 times the overshoot value (deg). adding the set temperature (T ₀₎ to the input amount of bodily-sensible temperature setting) T _l) a, and the haptic set temperature (T _l) and the gas combustor 11 on the basis of the temperature difference between the currently detected room temperature (T) of Deciding.

The table shown in Table 2 is based on the detection room temperature (T) at the start of the operation 5 minutes after the start of operation and (the detection room temperature (T) at the start of the shelf operation) = difference (ΔT). The duration time K0 of haptic control is calculated | required using data.

For this reason, even if the user's sensational temperature is various due to the difference in temperature rising speed of the room temperature or the difference in room temperature at the start of heating operation due to the dispersion of the temperature rising characteristics of the floor or the wall of the room in which the gas hot air heater B is installed. Since the haptic control is performed at the haptic temperature, the haptic set temperature T _l and the duration time K are appropriate, without the user feeling excessive heating.

(E) During state 63 to state 65, the segment indicating the set temperature (T ₀ ) is kept lit, and the segment of the indicator 40 displaying the detected room temperature (T) is in a flashing state, indicating that it is a haptic control. Since the user is informed, the user can easily know that the haptic control is under way.

The present invention includes the following embodiment in addition to the above embodiment.

a. The predetermined time (5 minutes in the above embodiment), the predetermined time (5 minutes in the above embodiment), the predetermined temperature (1 deg), the overshoot amount by Ts-ΔT and the duration time K by Ts-ΔT You may decide appropriately.

b. In the above embodiment, the detection room temperature Ts at the start of the heating operation, (the detection temperature Ts-the detection room temperature Ts at the start of the heating operation)-? T overshoot amount and the duration time K are not continuous. It is not a digital value, but may be a continuous analog value.

c. The display start of the haptic control display may be any of states 52, 53, and 62, and the end of the display of the haptic control display may be any of states 54, 55, 56, 64, and 65.

d. In the second embodiment, it has been shown that the target value is changed from the diminished set temperature T _l to the set temperature T ₀ after the duration time K has elapsed, but the target value is changed from the diminished set temperature T _l to the set temperature. (T ₀ ) may be gradually approached within the duration.

Claims (3)

A heater housing having a heating source or a blower for blowing warm air from the spout to the room, a room temperature sensor for detecting room temperature, a temperature setter for setting room temperature, and a set temperature set with the temperature setter and the temperature sensor In a warm air heater comprising a controller that adjusts the heating capacity of the heating source based on a difference between the detection room temperature, the controller is based on the detection room temperature at the start of heating operation and the increase in the detection room temperature at the beginning of the onset of heating. A warm air heater, characterized in that Chekam control is performed at the beginning of heating operation with the haptic set temperature determined by the target value as the target value. The warm air conditioner according to claim 1, further comprising: a sensation setting temperature correction means for starting the operation when the detection room temperature reaches the setting temperature and lowering the sensation setting temperature to the setting temperature by a predetermined temperature for each predetermined time. The warm air heater according to claim 1, wherein the duration of the haptic control is determined based on the degree of increase of the detection room temperature at the start of heating operation and the detection room temperature at the beginning of operation.