JP3642603B2 - Combustion equipment - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a combustion apparatus provided with a control device to which a remote control is signal-connected.
[0002]
[Prior art]
FIG. 2 schematically shows a structural example of a bath apparatus with a hot water supply function that is typical as a combustion device. In the figure, the instrument body 1 is accommodated in the instrument case 7. The appliance body 1 is provided with a hot water supply heat exchanger 2, a water supply pipe 16 having a flow rate sensor 4 is connected to the inlet side of the hot water supply heat exchanger 2, and the outlet side of the hot water supply heat exchanger 2 is connected to the appliance body 1. A hot water supply pipe 17 having a flow rate adjusting means 26 is connected to form a hot water supply passage. One end of a connecting pipe 18 provided with a pouring control valve 5 is connected in the middle of the hot water supply pipe 17, and the other end of the connecting pipe 18 is connected in the middle of the return pipe 12.
[0003]
One end of the return pipe 12 is connected to the circulation port of the adapter 20 provided on the side wall of the bathtub 14, and the other end of the return pipe 12 is connected to the suction port side of the circulation pump 8. One end of the forward pipe 13 provided with the bath heat exchanger 3 is connected, and the other end of the forward pipe 13 is connected to the adapter 20 of the bathtub 14. The forward pipe 13, the bath heat exchanger 3, and the return pipe 12 form a recirculation circulation path. Further, as shown in the figure, the return pipe 12 is provided with a running water switch 11 and a temperature detection thermistor 15, and the communication pipe 18 is provided with a pressure sensor 10, and if necessary, A flow sensor 4 and a flow rate adjusting means 26 are provided.
[0004]
Although not shown, a burner is provided on the lower side of each of the hot water supply heat exchanger 2 and the bath heat exchanger 3, a gas supply path for sending fuel to the burner in the vicinity of the burner, and ignition of the fuel Means necessary for performing burner combustion, such as an igniter electrode to be performed and a combustion fan for supply / exhaust, are provided.
[0005]
This type of bath apparatus is usually provided with a control device 25, and a remote control 6 is connected to the control device 25 by wire or wirelessly. As shown in FIG. 3, the remote control 6 has an operation button 22 for instructing operation start / stop of the instrument body, an automatic button 23 for instructing a series of automatic operations from hot water filling to reheating to the heat retaining mode, Bath water level setting up button 38 and bath water level setting down button 39 to set the bath water level, Bath temperature setting up button 34 and bath temperature setting down button 35 to set the bath temperature, Hot water temperature setting up button 36 to set the hot water temperature and A hot water supply temperature setting down button 37, and a display unit 33 for displaying the temperature of the bath and hot water, the bathtub set water level, and the like are provided.
[0006]
The control device 25 controls the burner combustion, the open / close control of the pouring control valve 5 based on the output signal from the remote controller, the sensor output of various sensors such as the flow sensor 4 and the thermistor 15 according to the sequence program, The drive control of the circulation pump 8 is performed, and the appliance operation operations such as hot water filling, chasing and hot water supply are controlled.
[0007]
For example, when a hot water tap (not shown) provided on the distal end side of the hot water supply pipe 17 is opened in a kitchen or the like, the control device 25 starts a hot water supply operation. When the hot water tap is opened, water from a water supply source such as water enters the hot water supply heat exchanger 2 through the water supply pipe 16, and this water flow is detected by the flow rate sensor 4, and the control device 25 receives this flowing water detection signal. Burns the burner, heats the water passing through the hot water supply heat exchanger 2 to hot water of a set temperature, guides this hot water through a hot water supply pipe 17 to a desired hot water supply place such as a kitchen, and discharges the hot water. When the hot water supply is finished and the hot water tap is closed, the water flow is stopped. This flow stop is detected by the flow sensor 4, and the control device 25 stops burning the burner in response to the detection result of the water flow stop. Then, the hot water supply operation is finished.
[0008]
For example, when an automatic operation is instructed by the automatic button 23 of the remote controller 6, the control device 25 opens the hot water control valve 5 and heats the hot water supply heat exchanger 2 when the flow sensor 4 detects flowing water. Burner combustion is performed and hot water heated by the hot water supply heat exchanger 2 is recirculated from the connecting pipe 18 to the recirculation passage, and from the outlet of the circulation pump 8 through the bath heat exchanger 3 to the adapter 20 through the forward pipe 13. The hot water is poured into the bathtub 14 through two routes: a route and a route leading to the adapter 20 through the return pipe 12, and when the bathtub water level reaches the set water level, the hot water control valve 5 is closed and the hot water operation is performed. To move to the next driving operation.
[0009]
In the reheating operation, the circulation pump 8 is driven to circulate hot water in the bathtub 14 through the recirculation circulation passage, stir the hot water in the bathtub 14, and the thermistor 15 detects the hot water temperature in the bathtub 14. . When the detection temperature of the bath water temperature is lower than the bath set temperature, the circulation pump 8 is continuously driven, and the hot water circulating in the recirculation circulation passage is heated by the bath heat exchanger 3 to increase the hot water temperature. Boil. When the detected temperature of the thermistor 15 reaches the bath set temperature, the circulation pump 8 is stopped and the operation of the chasing operation is ended.
[0010]
After completion of this chasing operation, the heat insulation mode is activated for a predetermined time, for example, 4 hours, and the circulation pump 8 is driven at a predetermined time interval, for example, every 30 minutes, by circulating hot water in the bathtub 14. After stirring, the bath water temperature is detected by the thermistor 15, and when the temperature is lower than the bath setting temperature, the bath water temperature is replenished to keep the bath water temperature at the bath setting temperature.
[0011]
By the way, as is well known, there are a 100 V control method and a phase angle control method as a drive control method for the circulation pump 8. The 100 V control method performs drive control of the circulation pump 8 based on a sine wave of a 100 V AC voltage as shown in FIG. 4A, and the phase angle control method is as shown in FIG. 4B. The drive control of the circulation pump 8 is performed based on various control pulses. The phase angle control method is a method in which the control pulse width can be varied and the driving amount of the circulation pump 8 can be easily changed as compared with the 100 V control method. There are many cases.
[0012]
However, when the drive control of the circulation pump 8 is performed by the above-described phase angle control method, the voltage fluctuation of the control pulse is larger than when the drive control of the circulation pump 8 is performed by the 100 V control method. The vibration is intense, and this vibration is transmitted to the wall or pillar where the instrument is installed via the instrument case 7 or the instrument installation member, and depends on the structural conditions of the wall and pillar, such as the material and thickness of the wall, the length of the pillar, etc. In some cases, resonance occurs in the walls, columns, etc., and vibration noise from the walls, columns, etc. may be added to the driving sound of the circulation pump 8 to generate a very loud sound. Such a loud sound becomes a noise, and when using the appliance at night, it causes great trouble to the appliance user and their neighbors.
[0013]
Therefore, the control device 25 is previously provided with both a 100 V control means for performing a 100 V control technique as a pump noise prevention control means and a phase angle control means for performing a phase angle control technique. A dip switch, which is a switch for switching between the control means and the phase angle control means, is provided. For example, when the appliance is shipped, the dip switch is switched to the phase angle control means. The problem is solved by switching to the control means.
[0014]
[Problems to be solved by the invention]
However, in order to switch between the phase angle control means and the 100 V control means after installation of the instrument, for example, a serviceman removes a plurality of screws from the front cover of the instrument case 7, removes the front cover, There is a problem that it takes time to switch the control means, such as switching the DIP switch to the 100 V control means and attaching the front cover with a plurality of screws.
[0015]
The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a combustion device that can easily switch the control means without taking a hand gap.
[0016]
[Means for Solving the Problems]
In order to achieve the above object, the present invention is configured as follows. That is, the combustion device of the present invention includes a control device to which a remote controller is connected in signal, and in the combustion device whose combustion operation is controlled according to the sequence program of this control device, the control device differs for the same type of control target. There are provided a plurality of series control means for performing a control operation and a control switching section for switching each series of control means according to a switching signal, and a manual switching signal input for supplying a switching signal to the circuit switching section is provided on the remote control The switching signal is based on a preparation signal for instructing preparation of a designation signal output to the circuit switching unit and a designation signal for instructing switching of the control means following the preparation signal. The manual switching signal input unit of the remote controller is configured by a plurality of remote controllers. The control signal is input from the switch signal input unit of the remote controller, and the control signal is input from the switch signal input unit of the remote controller. The control means of each series is switched according to the specified signal of the switching signal only when the hidden mode operation rule given in advance is matched with the specified signal .
[0017]
Further, the present invention is provided with a recirculation passage for circulating the hot water in the bathtub through the circulation pump , and the combustion equipment is installed on a wall or a pillar . Pump noise prevention control means for silently driving without causing resonance noise in the wall or column on which the combustion equipment is installed is generated by the vibration caused by driving, and the pump noise is controlled by the hidden mode operation from the switching signal input unit of the remote controller. It is also configured to supply a prevention control means drive switching signal, and the control means of a plurality of systems of the control device also has a silent mode control means for performing silent combustion by changing the combustion capacity in a decreasing direction. It is a place to do.
[0018]
[Action]
In the present invention having the above-described configuration, for example, in the combustion equipment in which the first control means and the second control means for performing different control operations for the same type of control target are provided in the control device, the first control means when There has been performed the control operations of the control target, when the first issue from the control means must be switched to the second control means has occurred, control of the switching signal input unit or control from device provided in the remote controller A switching signal is supplied to the switching unit. The control switching unit switches from the first control means to the second control means according to the switching signal to solve the above problem.
[0019]
【Example】
Embodiments of the present invention will be described below with reference to the drawings. The combustion apparatus of the present embodiment is directed to a bath apparatus with a hot water supply function, and the configuration thereof has the same system configuration as the bath apparatus with a hot water supply function of FIG. 2 described above in the conventional example. In the description of the present embodiment, The same reference numerals are given to the same name portions as those in the conventional example, and the duplicated explanation is omitted.
[0020]
FIG. 1 shows a characteristic configuration of the control switching means in the present embodiment. The signal output determining section 28, the control switching section 29, and the phase angle control means 30 and 100 V control described above in the conventional example. Means (pump noise prevention control means) 31. In this embodiment, the switching signal is composed of a preparation signal and a designation signal, and the preparation signal is supplied by using the bathtub water level setting up button 38 and the bathtub water level setting down button 39 which are switching signal input parts in the remote controller 6. Similarly, the switch signal input unit is used to supply the designation signal using the bath temperature setting up button 34 and the bath temperature setting down button 35 to switch between the phase angle control means 30 and the 100 V control means 31.
[0021]
The signal output determination unit 28 is given a control means switching rule (hidden mode rule) in the remote controller 6 in advance. In this embodiment, the preparation signal is output when a special hidden mode operation is performed such as both the bathtub water level setting upper button 38 and the bathtub water level setting lower button 39 are simultaneously pressed for 10 seconds or more. When the bath temperature setting up button 34 is continuously pressed after the preparation signal is output, the designation signal of the phase angle control means 30 indicating that the switching control means is the phase angle control means 30 is output, and the bath temperature setting down button A rule is given to the signal output determination unit 28 that the designation signal of the 100 V control means 31 is output when 35 is pressed.
[0022]
The signal output determination unit 28 has a built-in timer, and a hidden mode determination time (for example, 10 seconds) for determining whether or not the button operation of the remote controller 6 is performed according to the control means switching rule is given in advance. . When the button pressing time during which both the bathtub water level setting upper button 38 and the bathtub water level setting lower button 39 are pressed together exceeds the hidden mode determination time, the signal output determination unit 28 sets the bathtub water level setting upper button 38. And the bathtub water level setting lower button 39 determines that the operation has been performed according to the above rule, outputs a preparation signal and enters a specified signal output preparation state. Conversely, when the button pressing time does not exceed the hidden mode determination time, the button is pressed incorrectly. And the preparation signal is not output, and the designated signal output preparation state is not obtained. Further, the signal output determining section 28 is the designation signal output ready bath temperature setting on the button 3 4 is pressed, outputs a designation signal of the phase angle control means 30 in accordance with the above rules, the bath temperature setting under button 3 5 When pressed, the 100V control means 31 outputs a designation signal (pump noise prevention control means switching signal).
[0023]
The control switching unit 29 is configured to switch to the phase angle control means 30 or the 100 V control means 31 according to the designation signal when both the preparation signal and the designation signal are supplied. The phase angle control means 30 is constituted by a control circuit and a control program for controlling the driving of the circulation pump 8 based on the control pulse as shown in FIG. 4B, and the 100 V control means 31 is shown in FIG. a) a control circuit or a control program for controlling the driving of the circulating pump 8 based on a sine wave as shown in a). The circulating pump 8 is controlled by a control means corresponding to the switching control of the control switching unit 29. Done. Control means for controlling the driving of the circulation pump 8 is displayed on the display unit 33 of the remote controller 6 by characters, symbols, or the like, or notified when a lamp (not shown) provided on the remote controller is turned on if necessary. .
[0024]
According to the present embodiment, since the control means can be switched using the remote controller 6, the front cover of the instrument case 7 is removed and the control switch of the control device 25 is switched as in the conventional case. The control means can be switched quickly and easily without adding a manual gap such as attaching the cover as it is.
[0025]
In addition, this invention is not limited to the said Example, Various aspects can be taken. For example, in the above embodiment, switching of the control means of the circulation pump 8 has been described as an example, but combustion capacity switching can also be performed in the same manner as in the above embodiment. For example, when the incoming water temperature is low in winter, the combustion capacity, that is, the amount of gas supplied to the burner, is increased to increase the combustion heat amount of the burner, and conversely, when the incoming water temperature is high in the summer, the combustion capacity, that is, the gas supply amount is decreased. Thus, the combustion capacity (gas supply amount) can be variably controlled by switching the control means in accordance with the incoming water temperature or the like, such as reducing the combustion heat quantity of the burner.
[0026]
When performing variable control of the combustion capacity, a variable range of the combustion capacity is given in advance to the combustion equipment, and the combustion equipment performs variable control of the combustion capacity within the variable range. Normally, one combustion device is given a variable range of one combustion capability, but a plurality of different combustion capability variable ranges are given to the combustion device, and the above-mentioned combustion capability is operated by operating a remote controller as in the above embodiment. If the configuration is such that the variable range is switched, the serviceman and the user of the appliance can quickly and easily switch the variable range of the combustion capacity according to the time zone, season, and the like.
[0027]
For example, burner combustion noise of 45 dB (A) when burner combustion is performed with the combustion capacity of 20 (1 means the combustion capacity necessary to raise 1 liter of water by 25 ° C per minute) If combustion occurs, the burner combustion noise increases as the combustion capacity increases, such as a noise of 48 dB (A) when burner combustion is performed with the combustion capacity of No. 24. Therefore, burner combustion is performed with a large maximum combustion capacity of No. 24 during daytime use, and in order to reduce the combustion capacity so that the maximum combustion capacity becomes No. 20 so as not to generate a loud noise during nighttime use. If the control device is provided with the silent mode control means for switching, it is possible to avoid the problem that the user of the appliance and its neighbors are greatly disturbed by the burner combustion noise during night use.
[0028]
Further, in addition to the switching of the combustion capacity, when a control unit of the normal mode and the additional function mode is provided for the same type of control target, the normal mode and the additional function are operated by operating the remote controller as in the above embodiment. The mode control means can be switched.
[0029]
Further, in the above-described embodiment, an example in which two control units that perform different control operations for the same type of control target are provided, but a plurality of controls that perform different control operations for the same type of control target is illustrated. When there are three or more means such as A, B, C..., For example, when the signal output determination unit 28 is in the signal output preparation state, the bath temperature setting up button of the remote controller 6 is used. The control means A corresponds to each control means such that 34 designates the control means A, the bath temperature setting lower button 35 designates the control means B, and the hot water supply temperature setting upper button 36 designates the control means C. Thus, when setting and switching the control means, the control means can be switched by operating the remote controller 6 as in the above embodiment.
[0030]
Furthermore, the control means switching operation rule in the remote controller 6 such as a preparation signal is output when both the upper button 38 and the lower button 39 of the bathtub water level setting are continuously pressed for 10 seconds or more is not limited to the above embodiment. For example, it can be arbitrarily set such that a preparation signal is output when the bath temperature setting down button 35 and the hot water supply temperature setting down button 37 are simultaneously pressed for 5 seconds.
[0033]
Furthermore, in the above-described embodiment, the bath device with a hot water supply function has been described as an example of the combustion device. However, the combustion device of the present invention includes a water heater, a heater, and a cooling device provided with a control device to which a remote controller is signal-connected. It is applied to various types of combustion equipment such as air conditioners, air conditioners and air conditioners.
[0034]
【The invention's effect】
According to the present invention, the control device is provided with a plurality of control means for performing different control operations for the same type of control target, and the remote control is provided with the switching signal input unit. Conventionally, when switching from the control means to the second control means, it took time to remove the front cover of the instrument case and switch the control changeover switch of the control device to reattach the front cover. Control means can be switched quickly and easily simply by operating the switching signal input part of the remote control. For example, when a service person performs after-service work such as maintenance and inspection, the burden of that work is reduced. Can be made.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram showing a characteristic configuration of a control switching unit in the present embodiment.
FIG. 2 is an explanatory view showing an example of a bath apparatus with a hot water supply function as a combustion apparatus of the present embodiment and a conventional example.
FIG. 3 is an explanatory diagram schematically showing an example of a remote controller.
FIG. 4 is an explanatory diagram showing an example of a control waveform for performing drive control of the circulation pump.
[Explanation of symbols]
6 Remote control 8 Circulation pump
25 Control unit
29 Control switching part
30 Phase angle control means
31 100 V control means
34 Bath temperature setting up button
35 Bath temperature setting down button
36 Bathtub water level setting up button
37 Bath water level setting down button

Claims (3)

  In a combustion apparatus having a control device to which a remote controller is connected in signal and whose combustion operation is controlled in accordance with a sequence program of the control device, the control device performs a plurality of series of controls for performing different control operations for the same type of control target And a control switching section for switching the control means of each series according to the switching signal, and the remote controller is provided with a manual switching signal input section for supplying a switching signal to the circuit switching section. The switching signal includes a preparation signal for instructing preparation of a designation signal output to the circuit switching unit, and a designation signal for designating switching of the control means following the preparation signal. The manual switching signal input unit uses a plurality of buttons provided on the remote control different from the original button operation. The preparation signal and the designation signal that follows the preparation signal are input by an operation in a special hidden mode, and the control switching unit is provided in advance with a preparation signal and a designation signal that are applied from the switching signal input unit of the remote controller. A combustion apparatus characterized in that the control means of each series is switched according to the designation signal of the switching signal only when the rule of the hidden mode operation is met. The combustion device is installed on a wall or a pillar, and has a recirculation circulation passage for circulating hot water in the bathtub through a circulation pump. In a plurality of control means, vibration due to driving of the circulation pump is caused by the combustion Including pump noise prevention control means for silently driving without causing resonance noise on the wall or pillar where the equipment is installed, and switching of the pump noise prevention control means drive by operation of the hidden mode from the switching signal input portion of the remote controller The combustion apparatus according to claim 1, wherein a signal is supplied.   The combustion apparatus according to claim 1 or 2, wherein the plurality of series of control means of the control device has silent mode control means for performing silent combustion by changing the combustion capacity in a decreasing direction.

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