CN109114589A - Burner - Google Patents
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- Publication number
- CN109114589A CN109114589A CN201810600410.8A CN201810600410A CN109114589A CN 109114589 A CN109114589 A CN 109114589A CN 201810600410 A CN201810600410 A CN 201810600410A CN 109114589 A CN109114589 A CN 109114589A
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- CN
- China
- Prior art keywords
- switch
- valve
- control unit
- burner
- solenoid valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
- F23N5/24—Preventing development of abnormal or undesired conditions, i.e. safety arrangements
- F23N5/242—Preventing development of abnormal or undesired conditions, i.e. safety arrangements using electronic means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2235/00—Valves, nozzles or pumps
- F23N2235/12—Fuel valves
- F23N2235/14—Fuel valves electromagnetically operated
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Regulation And Control Of Combustion (AREA)
- Feeding And Controlling Fuel (AREA)
Abstract
The present invention provides a kind of burner.1st valve (7a) is configured to, and by being powered to the 1st valve (7a), so that the 1st valve (7a) is open, supplies fuel to combustion section (5a).1st control unit (60) and the 2nd control unit (70) control the energization to the 1st valve (7a).1st the~the 3 switch (Q1a, Q2, Q3) of switch is electrically connected in series between power-supply wiring (80) and ground connection wiring (84) with the 1st valve (7a).1st switch (Q1a) and the 2nd switch (Q2) are switched on and off by the control of the 1st control unit (60) respectively, and the 3rd switch (Q3) is switched on and off by the control of the 2nd control unit (70).When the 1st the~the 3 switch (Q1a, Q2, Q3) of switch is on-state, the 1st valve (7a) is energized.
Description
Technical field
The present invention relates to a kind of burner, for tool there are two the control unit for controlling the energization to valve, which is used for will
Fuel is supplied to combustion section.
Background technique
A kind of burning is disclosed in Japanese Unexamined Patent Publication 2002-318003 bulletin and International Publication No. 2006/080223
Device, there are two the control units for controlling the energization to valve for burner tool, and the valve is for supplying fuel to combustion section.
It is described in the document such as flowering structure, that is, main control unit and sub-control portion independently control logical separately from each other
The movement in circuit is electrically cut off, which is used to cut off the energization to the solenoid valve for supplying fuel.Above-mentioned combustion
It burns device to be carried in the device there are two control unit, mutually be monitored by the mutual communication of control unit, to prevent to constitute each
The microcomputer of control unit it is out of control.
Summary of the invention
In the document, connection is controlled using the switch being switched on and off by main control unit control and by sub-control portion
With the switch of cutting, energization cut-off loop is constituted, by cutting off any one of the two switches, can be cut off to solenoid valve
It is powered.In addition, two switches are made of thyristors such as transistors respectively.
Using the structure, the control unit is caused to fall into when the control unit in main control unit and sub-control portion is abnormal
In the case where it not can be carried out control, forcibly make solenoid valve and also capable of cutting off corresponding switch by making another control unit
It is in close state.
But in the structure, it is fixed to on-state and can't be cutting shape two switches have occurred
In the case where the failure of state, in fact it could happen that the state of affairs of the energization to solenoid valve can not be cut off.In this case, solenoid valve meeting
Become opening state in the other places of the intention in main control unit and sub-control portion, it is therefore possible to fuel leakage etc. occurs.Thus, it is
The safety for improving burner, not only needs to prevent the out of control of each control unit, but also be also required to prevent from being switched by two
Solenoid valve caused by failure delays work.
The present invention is made into solve above-mentioned such problems, it is an object of the present invention in two control units
It is configured to control two switches respectively to be switched on and off to control into the burner of the energization of solenoid valve, one kind is provided
For being assuredly shut off the structure of the energization to solenoid valve when this two switches break down.
Burner according to the present invention includes: combustion section, generates heat using the burning of fuel；1st valve is constituted
To make the 1st valve be open, supplying fuel to combustion section by being powered to the 1st valve；1st control unit and the 2nd control unit are used
In energization of the control to the 1st valve；And the 1st switch~the 3 switch, power-supply wiring and ground connection wiring between and the 1st valve string
The electrical connection of connection ground.1st switch and the 2nd switch are switched on and off by the control of the 1st control unit respectively.3rd switch is by the 2nd control unit control
System is switched on and off.When the 1st the~the 3 switch of switch is on-state, the 1st valve is energized.
Using the burner, since 3 switches are electrically connected in series with the 1st valve, even if in this 3 switches
Two switches have occurred be fixed as on-state and in the case where can't be the failure of dissengaged positions, also can be by making to be left
1 switch be dissengaged positions, to cut off the energization to the 1st valve.The 1st valve is in off state as a result, therefore can reliably be cut
Break to combustion section fuel supply, improve the safety of burner.
In addition, becoming solenoid valve in order to guarantee to break down in two switches in above-mentioned patent document 1,2 and beating
Safety in the case where open state, sometimes using such as flowering structure, that is, be disposed in series prepared electromagnetism with the solenoid valve in advance
Valve avoids fuel from leaking by being in off state the solenoid valve of the preparation.In contrast, in burner of the invention,
As described above, can also solenoid valve be made to be in off state even if two switches break down, therefore, there is no need to keep solenoid valve as above
Such redundancy is stated, it is ensured that the safety of burner.
Preferably, burner further includes the abnormal informing portion for informing burner.1st control unit and the 2nd control
Portion processed is respectively structured as the energized state of the 1st valve of detection.It is connection making any two switch in the 1st the~the 3 switch of switch
When detecting the energized state of the 1st valve in the case where state, the 1st control unit or the 2nd control unit make informing portion inform burner
Exception.
In such manner, it is possible to determine whether each switch has occurred failure, therefore can be had occurred in any one switch in 3 switches
The opportunity of failure informs the failure to user.
Preferably, the is detected in the case where making any two switch in the 1st the~the 3 switch of switch be on-state
When the energized state of 1 valve, the 1st control unit and the 2nd control unit make at least one of described any two switch for dissengaged positions.
In this way, the energization to the 1st valve can be cut off on the opportunity that failure has occurred in any one switch in 3 switches.
Preferably, one of the 1st control unit and the 2nd control unit are the main control units of blanket control burner.1st control
The other of portion processed and the 2nd control unit are the sub-control portions that the energization to the 1st valve is independently controlled relative to main control unit.It is main
Control unit and sub-control portion execute two-way communication.
In this way, main control unit and sub-control portion can be realized by mutually monitoring for preventing by the different of microcomputer
The function of delaying work of often resulting in, and delay work caused by can be realized for preventing the failure switched as two.
Preferably, the 1st series circuit of the 1st valve and the 1st switch is connected between power-supply wiring and ground connection wiring.2nd opens
It closes and the 3rd switch is connected between power-supply wiring and the 1st series circuit, or be connected to the 1st series circuit and ground connection cloth
Between line.
In this way, even if the 1st switch~the 3 switch in two switch failure has occurred in the case where, also can be by making
Remaining 1 switch is dissengaged positions, to cut off the energization to the 1st valve.
Preferably, burner further include: the 2nd valve consists of, by making the 2nd valve be open to the energization of the 2nd valve,
Fuel is supplied to combustion section；And the 4th switch, it is electrically connected in series between power-supply wiring and ground connection wiring with the 2nd valve.The
4 switches are switched on and off by the control of any one of the 1st control unit and the 2nd control unit.2nd series electrical of the 2nd valve and the 4th switch
Road is connected in parallel between power-supply wiring and ground connection wiring with the 1st series circuit.It is connection shape in the 2nd the~the 4 switch of switch
When state, the 2nd valve is energized.
In this way, the 1st the~the 3 switch of switch is electrically connected in series with the 1st valve, and the 2nd the~the 4 switch of switch and the 2nd valve
It is electrically connected in series.Therefore, two switches in 3 switches can be assuredly shut off respectively in the 1st valve and the 2nd valve and event has occurred
To the energization of valve when barrier.In addition, the 2nd switch and the 3rd switch can be shared between the 1st valve and the 2nd valve, therefore can prevent by opening
The enlargement of device caused by the increase of the number of pass.
It is related to detailed description below of the invention according to what connection with figures was understood, can understands of the invention described
Content and other purposes, feature, aspect and advantage.
Detailed description of the invention
Fig. 1 is the schematic structural diagram for applying the hot water supply apparatus of burner of embodiments of the present invention.
Fig. 2 is the loop diagram for illustrating the structure for controlling the energization to air-operated solenoid valve.
Fig. 3 is only to extract the part for being used to control the energization to solenoid valve in control structure shown in Fig. 2 out carry out table
The figure shown.
Fig. 4 is returning for the structure for controlling the energization to air-operated solenoid valve in the hot water supply apparatus for illustrate comparative example
Lu Tu.
Fig. 5 is the flow chart handled for illustrating the fault verification of the switch in the hot water supply apparatus of embodiment.
Fig. 6 is the schematic structural diagram for the structural example for illustrating the hot water supply apparatus of embodiment.
Specific embodiment
Hereinafter, the embodiment that present invention will be described in detail with reference to the accompanying.In addition, for the identical or equivalent portion in figure
Point, identical appended drawing reference is marked, does not repeat to illustrate it in principle.
Fig. 1 is the schematic structural diagram for applying the hot water supply apparatus 1 of the burner of embodiments of the present invention.Reference
Fig. 1, hot water supply apparatus 1 include water inlet pipe 2, output hot-water line 3, heat exchanger 4, burner 5a, 5b, power circuit 20, control
Device 30 and remote controler 90.In addition, hot water supply apparatus 1 further includes for the gas to burner 5a, 5b supply fuel gas
Supply pipe 6a, 6b, 8 and air-operated solenoid valve 7a, 7b.Heat exchanger 4 and burner 5a, 5b are accommodated in tank body (not shown).
The non-heated water such as tap water is fed into water inlet pipe 2.Heat exchanger 4 utilizes the fuel gas generated by burner 5a, 5b
The combustion heat of body is heated the non-heated water from water inlet pipe 2 by heat exchange.The heating water generated by heat exchanger 4 is from heat outputting
Water pipe 3 exports.
Gas supply pipe 8 branches into the gas supply pipe 6a gone to burner 5a and the gas supply pipe gone to burner 5b
6b.Air-operated solenoid valve 7a is inserted in gas supply pipe 6a.Air-operated solenoid valve 7b is inserted in gas supply pipe 6b.Spontaneous combustion burner respectively
The fuel gas of 5a, 5b output is mixed with the combustion air imported using blower fan (not shown), by igniting (not shown)
Device igniting.By lighting a fire to mixed gas, the flame formed by fuel gas is generated.Origin spontaneous combustion burner 5a, 5b
The combustion heat that flame generates is applied to heat exchanger 4.
In the example in fig 1, burner 5a, 5b is configured side by side relative to heat exchanger 4.Thus, can also switch burner 5a,
The item number of the burner of the supply object for becoming fuel gas in 5b.
Air-operated solenoid valve 7a, 7b are opened and closed according to the control instruction from controller 30.Air-operated solenoid valve 7a, 7b are normal
The solenoid valve closed, by being powered to solenoid, air-operated solenoid valve 7a, 7b self closing state changes to opening state.Air-powered electromagnetic
Valve 7a has the function of execution/supply of the fuel shutoff gas to burner 5a.Air-operated solenoid valve 7b has execution/cutting burning
Supply from gas to burner 5b function.
In addition, though illustration omitted, but can also be additionally provided with air-operated solenoid valve 7a and be supplied for controlling gas in series
To the gas ratio valve of the gas flow of pipe 6a.Equally, it can also be additionally provided in series with air-operated solenoid valve 7b for controlling
The gas ratio valve of the gas flow of gas supply pipe 6b.The heat generated in tank body and the item number and gas stream by burner
It is that the combination of amount determines, directly proportional to the supply heat of burner entirety.
In the construction shown in fig. 1, using burner 5a, 5b, gas supply pipe 6a, 6b, 8, air-operated solenoid valve 7a, 7b with
And controller 30 constitutes " burner " of present embodiment.That is, burner 5a, 5b correspond respectively to an implementation of " combustion section "
Example, air-operated solenoid valve 7a correspond to an embodiment of " the 1st valve ", and air-operated solenoid valve 7b corresponds to an embodiment of " the 2nd valve ".?
The structure of the opening and closing for control valve is described in detail below.
Hot water supply apparatus 1 further includes high-precision limit switch 9 as checking the exception in hot water supply apparatus 1
Structure.High-precision limit switch 9 is configured at tank body.High-precision limit switch 9 is the abnormal high temperature for monitoring tank body
Check element.When tank body reaches the temperature of certain value or more, the contact of high-precision limit switch 9 is open, thus from electrical connection
On-state to the dissengaged positions of electrical connection change.In addition, when tank body is when the temperature drops, high-precision limit switch 9 connects
Point is reset automatically.
Remote controler 90 is for the equipment from remote-controlled operation hot water supply apparatus 1.Remote controler 90 has various switches, raises
Sound device and the display of the action state for showing hot water supply apparatus 1 etc..
Power circuit 20 is converted to the alternating voltage from external power supply 10 between power-supply wiring 80 and ground connection wiring 84
DC voltage Vs.External power supply 10 is typically the commercial system power supply of 100VAC or 200VAC.In the following description,
DC voltage Vs is known as supply voltage Vs.Supply voltage Vs for example controls as 15V or so.
Controller 30 is connected between power-supply wiring 80 and ground connection wiring 84.Controller 30 receives power supply from power-supply wiring 80
The supply of voltage Vs and acted.Specifically, controller 30 controls hot water confession according to the user's operation on remote controler 90
To the movement of device 1.For example, user's operation includes that the starting of hot water supply operating stops the set temperature of instruction, hot water supply
Instruction.As representative function, controller 30 is generated in a manner of controlling output hot water temperature according to set temperature to burning
The control instruction of device 5a, 5b.By controlling the combustion heat generated by burner 5a, 5b according to control instruction, hot water supply is controlled
The output hot water temperature of device 1.
Controller 30 has driving circuit 40, monitoring circuit 50, main microcomputer 60 and secondary microcomputer 70.
The movement of the blanket control hot water supply apparatus 1 of main microcomputer 60.Specifically, main microcomputer 60 executes
To the igniting of burner 5a, 5b, the adjustment that exports hot water temperature, the control of various solenoid valves containing air-operated solenoid valve 7a, 7b
And control of blower fan etc..Main microcomputer 60 is received by being communicated with remote controler 90 from remote controler 90
Various instructions, and the action state of hot water supply apparatus 1 is sent to remote controler 90.
Main microcomputer 60 has CPU (Central Processing Unit, central processing unit), ROM (Read
Only Memory, read-only memory), RAM (Random Access Memory, random access memory) and I/F
(Interface, interface) circuit.RAM is executed the program for being stored in ROM by CPU as working storage.It is stored in the journey of ROM
Sequence contains the function etc. of the movement for controlling hot water supply apparatus 1.Driving circuit 40, monitoring circuit 50 and various sensors
(not shown) and I/F circuit connection.
Secondary microcomputer 70 independently controls confession of the fuel gas to burner 5a, 5b relative to main microcomputer 60
The cutting given.That is, secondary microcomputer 70 can independently control air-operated solenoid valve 7a, 7b relative to main microcomputer 60
It closes.
Secondary microcomputer 70 and main microcomputer 60 are same, have CPU, ROM, RAM and I/F circuit.It drives back
Road 40, monitoring circuit 50 and various sensors and I/F circuit connection.The I/F circuit and main microcomputer of secondary microcomputer 70
The I/F circuit of calculation machine 60 is electrically connected, and can send or receive mutual data.
Driving circuit 40 controls pneumatic electricity according to the control instruction for coming autonomous microcomputer 60 and secondary microcomputer 70
The opening and closing of magnet valve 7a, 7b.As using Fig. 2 it is aftermentioned as, driving circuit 40 according to control instruction control to air-operated solenoid valve 7a,
The energization of 7b.
The respective energized state of the monitoring of monitoring circuit 50 air-operated solenoid valve 7a, 7b.Monitoring circuit 50 will indicate pneumatic electricity
The signal of the respective energized state of magnet valve 7a, 7b is output to main microcomputer 60 and secondary microcomputer 70.Main microcomputer
Calculation machine 60 and secondary microcomputer 70 can be detected air-operated solenoid valve 7a, 7b and be located respectively based on the signal from monitoring circuit 50
In energization and non-energized any state, that is, air-operated solenoid valve 7a, 7b are respectively at any state of valve opening and valve closing.
Next, illustrating the structure for controlling the energization to air-operated solenoid valve 7a, 7b using Fig. 2.
Referring to Fig. 2, power-supply wiring 80 is connect via high-precision limit switch 9 with supply lines 82.Power-supply wiring 80 is to power supply
82 supply line voltage Vs of line.Supply voltage Vs is such as 15V by the control of power circuit 20.Specifically, power circuit 20 has
There are diode bridge 21 and DC/DC converter 22.Diode bridge 21 rectifies the alternating voltage from external power supply 10.
Voltage after being rectified using diode bridge 21 is converted to supply voltage Vs by DC/DC converter 22.It is connected in supply lines 82
Air-operated solenoid valve 7a, 7b.In addition it is also possible to be connected with other loads (not shown) in supply lines 82.
In the state that hot water supply apparatus 1 normally acts and the temperature of tank body is lower than certain value, high-precision is limited
The contact of switch 9 remains closed state, so that the path inserted with high-precision limit switch 9 be made to connect.And reach in tank body
When the temperature of abnormal high temperature and tank body reaches certain value or more, the contact of high-precision limit switch 9 is in open state, from
And it will be cut off inserted with the path of high-precision limit switch 9.
Main microcomputer 60 and secondary microcomputer 70 are connected between power-supply wiring 86 and ground connection wiring 88.Master is miniature
Computer 60 and secondary microcomputer 70 receive the supply of supply voltage Vc from power-supply wiring 86 and are acted.Supply voltage Vc
Not shown power supply control is such as 5V.
Main microcomputer 60 generate control instruction S1a, S1b for controlling the energization to air-operated solenoid valve 7a, 7b,
S2.Control instruction S1a, S1b, S2 of generation are inputted to driving circuit 40.
Secondary microcomputer 70 generates the control instruction S3 for controlling the energization to air-operated solenoid valve 7a, 7b.It generates
Control instruction S3 is inputted to driving circuit 40.
Driving circuit 40 is electrically connected in series between supply lines 82 and ground connection wiring 84 with air-operated solenoid valve 7a.In addition,
Driving circuit 40 is electrically connected in series between supply lines 82 and ground connection wiring 84 with air-operated solenoid valve 7b.In the following description
In, the voltage of ground connection wiring 84 is denoted as ground voltage GND.
For driving circuit 40 according to the control instruction S1a for carrying out autonomous microcomputer 60, control confesses electric wire 82 to pneumatic electricity
The energization of magnet valve 7a.By being powered to air-operated solenoid valve 7a, change air-operated solenoid valve 7a self closing state to opening state.Separately
Outside, for driving circuit 40 according to the control instruction S1b for carrying out autonomous microcomputer 60, control confesses electric wire 82 to air-operated solenoid valve 7b
Energization.By being powered to air-operated solenoid valve 7b, change air-operated solenoid valve 7b self closing state to opening state.This
Outside, driving circuit 40 is according to the control instruction S2 for carrying out autonomous microcomputer 60 and the control instruction from secondary microcomputer 70
S3 controls the power supply carried out to supply lines 82.
Specifically, driving circuit 40 has switch Q1a, Q1b, switch Q2 and switch Q3.Switch Q1a is in supply lines 82
It is electrically connected in series between ground connection wiring 84 with air-operated solenoid valve 7a.Switch Q1a is by such as FET (Field Effect
Transistor: field effect transistor) it constitutes.The drain electrode of switch Q1a is connected with air-operated solenoid valve 7a, and source electrode and ground connection are routed
84 are connected, and carry out the control instruction S1a of autonomous microcomputer 60 in grid reception.
Switch Q1a is turned on when receiving the control instruction S1a of H (logically high) level, supply lines 82 with
Air-operated solenoid valve 7a is connected between ground connection wiring 84.On the other hand, switch Q1a refers in the control for receiving L (logic low) level
Become dissengaged positions when enabling S1a, is not connected to air-operated solenoid valve 7a between supply lines 82 and ground connection wiring 84.
Switch Q1b is electrically connected in series between supply lines 82 and ground connection wiring 84 with air-operated solenoid valve 7b.Switch Q1b by
Such as FET is constituted.The drain electrode of switch Q1b is connect with air-operated solenoid valve 7b, and source electrode is connect with ground connection wiring 84, is come in grid reception
The control instruction S1b of autonomous microcomputer 60.
Switch Q1b is turned in the control instruction S1b for receiving H level, is routed in supply lines 82 and ground connection
Air-operated solenoid valve 7b is connected between 84.On the other hand, switch Q1b becomes cutting shape in the control instruction S1b for receiving L level
State is not connected to air-operated solenoid valve 7b between supply lines 82 and ground connection wiring 84.
Switch Q2 and switch Q3 is electrically connected in series between power-supply wiring 80 and supply lines 82.Switch Q2, Q3 respectively by
Such as FET is constituted.Switch Q2 carrys out the control instruction S2 of autonomous microcomputer 60 in grid receiving.Switch Q3 comes in grid receiving
From the control instruction S3 of secondary microcomputer 70.
Switch Q2 is turned in the control instruction S2 for receiving H level, in the control instruction for receiving L level
Become dissengaged positions when S2.Switch Q3 is turned in the control instruction S3 for receiving H level, is receiving L level
Control instruction S3 when become dissengaged positions.When switch Q2, Q3 are on-state, power-supply wiring 80 is electrically connected with supply lines 82
It connects.In other words, when any one of switch Q2, Q3 are dissengaged positions, power-supply wiring 80 is not connected to supply lines 82.
In addition, in the present embodiment, instantiating the structure that switch Q1a, Q1b, Q2, Q3 use FET respectively, but each switch
It is able to use the thyristor in addition to FET such as bipolar transistor.
Monitoring circuit 50 is detected the voltage of the air-operated solenoid valve 7a node Na connecting with switch Q1a, and will indicate to detect
To the signal of voltage be output to main microcomputer 60 and secondary microcomputer 70.In addition, the detection of monitoring circuit 50 will be pneumatic
The voltage for the node Nb that solenoid valve 7b is connect with switch Q1b, and the signal for indicating the voltage detected is output to main microcomputer
Calculation machine 60 and secondary microcomputer 70.
Monitoring circuit 50 is for example with bleeder circuit.Electricity of the bleeder circuit with scheduled intrinsic standoff ratio to node Na, Nb everywhere
Pressure is divided and generates branch pressure voltage.In addition, scheduled intrinsic standoff ratio is set as that branch pressure voltage is made to reach main microcomputer 60
With the supply voltage Vc voltage below of secondary microcomputer 70.
It is different in the voltage that node Na embodies under the energized state of air-operated solenoid valve 7a and non-power status.It leads as a result,
Microcomputer 60 and secondary microcomputer 70 can be based on the electricity of node Na represented by the signal inputted from monitoring circuit 50
Pressure, it is still non-power status that detection air-operated solenoid valve 7a, which is energized state,.
Equally, different in the voltage that node Nb embodies under the energized state of air-operated solenoid valve 7b and non-power status.By
This, main microcomputer 60 and secondary microcomputer 70 can be based on node Nb represented by the signal inputted from monitoring circuit 50
Voltage, detection air-operated solenoid valve 7b be energized state is still non-power status.
Main microcomputer 60 have based on oneself issue control instruction, hot water supply apparatus 1 action state and
The function of signal check exception from monitoring circuit 50, various sensors.It is abnormal for example (unburned to combust comprising unburned gas
Material) leakage, the dry combustion method of burner 5a, 5b etc..When checking abnormal, the control for generating L level refers to main microcomputer 60
S1a, S1b, S2 are enabled, and control instruction S1a, S1b, S2 of generation are output to driving circuit 40.Driving circuit 40 is according to L level
Control instruction S1a, S1b, S2, respectively cut-out switch Q1a, Q1b, Q2, so that air-operated solenoid valve 7a, 7b is in non-power status.
Air-operated solenoid valve 7a, 7b becomes closed state as a result, and fuel gas is cut off to the supply of burner 5a, 5b.Thus, if combustion
Burner 5a, 5b is stopping of then burning in burning, if burner 5a, 5b are during burning stops, preventing the beginning of burning.
Secondary microcomputer 70 also has action state based on hot water supply apparatus 1 and from monitoring circuit 50, each
The function of the signal check exception of kind sensor.Secondary microcomputer 70 generates the control instruction of L level when checking abnormal
S3, and the control instruction S3 of generation is output to driving circuit 40.
Driving circuit 40 according to L level control instruction S3 cut-out switch Q3, thus make air-operated solenoid valve 7a, 7b be in it is non-
Energized state.Air-operated solenoid valve 7a, 7b becomes closed state as a result, and fuel gas is cut off to the supply of burner 5a, 5b.
In this way, main microcomputer 60 and secondary microcomputer 70 are configured to check exception independently of one another and fuel shutoff
Supply of the gas to burner 5a, 5b.But the I/F circuit electricity of the I/F circuit of main microcomputer 60 and secondary microcomputer 70
Connection, can send or receive mutual data.Main microcomputer 60 and secondary microcomputer 70 are via the hair of data as a result,
Send or receive mutually to monitor mutual movement, so as to check oneself exception (microcomputer out of control etc.) or other
Exception.
In addition, main microcomputer 60 and secondary microcomputer 70 can be each other to other side's output reset signals.It has received
The microcomputer of reset signal, which executes, to be stopped and restarts.That is, controller 30 by tool there are two microcomputer 60,
70, realize self-diagnostic function.
In addition, being used using the hot water supply apparatus 1 of present embodiment by electric in series with 1 air-operated solenoid valve
The on/off of 3 switches of connection controls the structure of from the energization to the air-operated solenoid valve.Thereby, it is possible to prevent from opening because of 3
Two switches in the Central Shanxi Plain have occurred startup separator and are powered to the air-operated solenoid valve.In addition, in the specification of the present application, opening
Dynamic failure refers to that switch is fixed to on-state, can't be the failure of dissengaged positions.
Hereinafter, the function and effect played referring to Fig. 3 and Fig. 4 hot water supply apparatus 1 that present embodiment is described in detail.
Fig. 3 is only to carry out the control in control structure shown in Fig. 2 to the part extraction of the energization of air-operated solenoid valve 7a
The figure of expression.Referring to Fig. 3, air-operated solenoid valve 7a and 3 have been electrically connected in series between power-supply wiring 80 and ground connection wiring 84
Switch Q1a, Q2, Q3.Thus, when this 3 switches Q1a, Q2, Q3 are all on-state, as shown in arrow k1 in figure, formed certainly
Electrical path of the power-supply wiring 80 to air-operated solenoid valve 7a.
Here, two switches Q1a, Q2 of 3 switches Q1a, Q2, Q3 are switched on and off by the control of main microcomputer 60,
Remaining 1 switch Q3 is switched on and off by the control of secondary microcomputer 70.
By being formed as this structure, main microcomputer 60 and secondary microcomputer 70 can make pneumatically independently of one another
Solenoid valve 7a is non-power status.Thus, such as it is out of control and hot water can not be normally controlled main microcomputer 60 has occurred
In the case where the state of affairs of feedway 1, by making secondary 70 cut-out switch Q3 of microcomputer, air-operated solenoid valve 7a can be made non-through
Electricity condition, supply of the fuel shutoff gas to burner 5a.
In addition, in the case that two in 3 switches Q1a, Q2, Q3 switch while startup separator has occurred, it can
Air-operated solenoid valve 7a is prevented to be energized in the other places of the intention of controller 30.In further detail using comparative example shown in Fig. 4
Illustrate this point.
Referring to Fig. 4, the structure of the controller of the hot water supply apparatus 1A of comparative example and the hot water of embodiment shown in Fig. 2
Feedway 1 is different.Specifically, controller 30A in the hot water supply apparatus 1A of comparative example is by controller 30 shown in Fig. 2
In driving circuit 40 be replaced into driving circuit 40A.
Driving circuit 40A has switch Q11a, Q11b, switch Q12 and switch Q13.The switch of switch Q11a and Fig. 2
Q1a is identical, is electrically connected in series between supply lines 82 and ground connection wiring 84 with air-operated solenoid valve 7a.Switch Q11a is autonomous micro-
Type computer 60 is turned on when receiving the control signal S11a of H level, between supply lines 82 and ground connection wiring 84
Connect air-operated solenoid valve 7a.On the other hand, switch Q11a becomes dissengaged positions in the control instruction S11a for receiving L level,
Air-operated solenoid valve 7a is not connected between supply lines 82 and ground connection wiring 84.
Switch Q11b is identical as the switch Q1b of Fig. 2, goes here and there between supply lines 82 and ground connection wiring 84 with air-operated solenoid valve 7b
The electrical connection of connection ground.Switch Q11b is turned in the control signal S11b for receiving H level, in supply lines 82 and ground connection
Air-operated solenoid valve 7b is connected between wiring 84.On the other hand, switch Q11b becomes in the control instruction S11b for receiving L level
Dissengaged positions is not connected to air-operated solenoid valve 7b between supply lines 82 and ground connection wiring 84.Switch Q11a, Q11b are respectively by for example
FET is constituted.
Switch Q12 is connected electrically between power-supply wiring 80 and supply lines 82.Switch Q12 is made of such as FET.Switch Q12
Drain electrode connect with power-supply wiring 80, source electrode is connect with supply lines 82.
Switch Q13 is connected electrically between switch Q12 and main microcomputer 60.Switch Q13 is by such as NPN transistor structure
At.The collector of switch Q13 is connect with the grid for the FET for constituting switch Q12, and emitter is connect with main microcomputer 60,
Base stage receives the control instruction S13 from secondary microcomputer 70.
Switch Q13 is turned in the control instruction S13 for receiving L level, and the grid of switch Q12 and master is micro-
Type computer 60 is electrically connected.On the other hand, switch Q13 becomes dissengaged positions in the control instruction for receiving H level, makes to switch
The grid of Q13 is not connected to main microcomputer 60.
Switch Q12 is in the control instruction S12 that switch Q13 is that on-state and autonomous microcomputer 60 receive H level
When be turned on, power-supply wiring 80 is connect with supply lines 82.On the other hand, switch Q12 is non-switched shape in switch Q13
It when state, or in switch Q13 is that on-state and autonomous microcomputer 60 become when receiving the control instruction S12 of L level
Non-conducting state is not connected to power-supply wiring 80 with supply lines 82.That is, when switch Q12, Q13 are on-state, power supply cloth
Line 80 is electrically connected with supply lines 82.
In the hot water supply apparatus 1A of comparative example, it has been electrically connected in series between power-supply wiring 80 and ground connection wiring 84
Air-operated solenoid valve 7a and two switches Q11a, Q12.Also, the switch Q12 in the two switches Q11a, Q12 can switched
Q13 is connected when being on-state.
It is complete in 3 switches Q11a, Q12, Q13 in the hot water supply apparatus 1A of comparative example by being formed as this structure
When for on-state, it is also formed from electrical path of the power-supply wiring 80 to air-operated solenoid valve 7a.
In a comparative example, switch Q11a is switched on and off by the control of main microcomputer 60, and switch Q12 is by leading miniature calculating
Machine 60 and the secondary control of microcomputer 70 are switched on and off, therefore main microcomputer 60 and secondary microcomputer 70 can be each other
Independently make air-operated solenoid valve 7a non-power status.
But in the hot water supply apparatus 1A of comparative example, two switches in 3 switches Q11a, Q12, Q13 occur
In the case where startup separator, it may occur however that the state of affairs that air-operated solenoid valve 7a is energized.
For example, being formed when startup separator occurs for switch Q11a and switch Q12 from power-supply wiring 80 to air-operated solenoid valve 7a
Electrical path.It in this case, also can not cut-out switch even if secondary microcomputer 70 makes switch Q13 dissengaged positions
Q12, therefore air-operated solenoid valve 7a is fixed to energized state.In this way, when switching while startup separator occurring for two, pneumatic electricity
Magnet valve 7a may become opening state in the other places of the intention of controller 30.Thus, even if worrying that burner is in burning and stops
In, also result in the state of affairs via air-operated solenoid valve 7a to burner 5a supply fuel gas.
In the case where startup separator has occurred simultaneously in switch Q13 and switch Q11a, it is also possible to above-mentioned such thing occur
State.In this way, there are the following problems by the hot water supply apparatus 1A of comparative example, that is, in two switches while startup separator has occurred
In the case of, air-operated solenoid valve 7a is energized, therefore can not supply of the fuel shutoff gas to burner 5a.
In contrast, in the hot water supply apparatus 1 of present embodiment, as shown in figure 3,3 switches Q1a, Q2, Q3 and gas
Moving electromagnetic valve 7a is electrically connected in series, therefore even if two switches in 3 switches while the case where startup separator has occurred
Under, it also can be dissengaged positions by making remaining 1 switch, to make air-operated solenoid valve 7a non-power status.
For example, secondary microcomputer 70 makes switch Q3 in the case where startup separator has occurred simultaneously in switch Q1a, Q2
Dissengaged positions, so as to stop the energization to air-operated solenoid valve 7a.Thus, air-operated solenoid valve 7a can be made to be in off state, cut
Disconnected supply of the fuel gas to burner 5a.In the case where startup separator has occurred simultaneously in switch Q1a, Q3, and switching
In the case that startup separator has occurred simultaneously in Q2, Q3, it can also stop the energization to air-operated solenoid valve 7a.
In this way, because of two switches in controller 30 while can will be occurred using the hot water supply apparatus 1 of present embodiment
Startup separator and the case where causing air-operated solenoid valve to be surprisingly energized, prevent trouble before it happens.Thus, it is possible to improve hot water supply dress
The safety set.
In addition, instantiating and switch Q2, Q3 being connected in series between power-supply wiring 80 and supply lines 82 in Fig. 3
Structure, but switch Q2, Q3 can also be connected in series between switch Q1a and ground connection wiring 84.Alternatively, can also will switch
One of Q2, Q3 are connected between power-supply wiring 80 and supply lines 82, and the other of switch Q2, Q3 are connected to out
It closes between Q1a and ground connection wiring 84.
In addition, the structure that switch Q1a is connected to air-operated solenoid valve 7a and is grounded between wiring 84 is instantiated in Fig. 3,
But switch Q1a can also be connected between supply lines 82 and air-operated solenoid valve 7a.
That is, as long as switch Q1a, Q2, Q3 are routed between 84 with air-operated solenoid valve 7a in series in power-supply wiring 80 and ground connection
Electrical connection, the position respectively switched are not limited to the structure of Fig. 3.
In the above-described embodiment, main microcomputer 60 constitutes one in " the 1st control unit " and " the 2nd control unit "
Person, secondary microcomputer 70 constitute the other of " the 1st control unit " and " the 2nd control unit ".In addition, switch Q1a, Q2, Q3 couple
An embodiment of Ying Yu " the 1st the~the 3 switch of switch ".In the hot water supply apparatus 1 of present embodiment, main microcomputer 60
It is switched on and off with what any two in the control of one of secondary microcomputer 70 3 switches Q1a, Q2, Q3 switched, and
Remaining 1 switch of the other of main microcomputer 60 and secondary microcomputer 70 control.
(fault verification of switch is handled)
In the hot water supply apparatus 1 of present embodiment, it can determine whether switch Q1a, Q1b, Q2, Q3 have occurred respectively
Startup separator.Opportunity of startup separator can has occurred in any one switch in controller 30 as a result, inform that user is abnormal.
Hereinafter, illustrating the fault verification processing of switch Q1a, Q1b, Q2, Q3 referring to Fig. 5.Such as it is set up in scheduled condition
Afterwards, main microcomputer 60 and secondary microcomputer 70 are able to carry out synergism and execute flow chart shown in fig. 5.In addition,
Scheduled condition includes that hot water supply apparatus 1 is in burning stopping and handles elapsed time from the fault verification of last time
It is the predetermined time with first-class.
The step of reference Fig. 5, fault verification handles the failure by determining switch Q2 (STEP1), the failure for determining switch Q3
The step of (STEP2) and determine switch Q1a, Q1b failure the step of (STEP3) composition.
In the step of determining the failure of switch Q2 (STEP1), by step S01,60 pairs of main microcomputer is driven back
Road 40 assigns the control instruction S2 of L level, so that switch Q2 is dissengaged positions.Secondary microcomputer 70 assigns driving circuit 40
The control instruction S3 of H level makes switch Q3 on-state.
Then, main microcomputer 60 assigns the control instruction S1a of H level by step S02 to driving circuit 40, makes out
Pass Q1a is on-state.That is, make two switch Q1a in switch Q1a, Q2, Q3 for being connected in series with air-operated solenoid valve 7a,
Q3 is on-state.
Main microcomputer 60 is by step S03, and based on the signal from monitoring circuit 50, detecting air-operated solenoid valve 7a is
Any state of energized state and non-power status.When detecting air-operated solenoid valve 7a is energized state, main miniature calculating
Machine 60 determines that startup separator has occurred in switch Q2.When determining that startup separator has occurred in switch Q2 (when S04 is determined as YES),
Main microcomputer 60 enters step S13, uses the startup separator of 90 telling switch Q2 of remote controler.
Alternatively, it is also possible to be assigned by secondary microcomputer 70 to driving circuit 40 after the startup separator for informing switch Q2
The control instruction S3 for giving L level makes switch Q3 dissengaged positions.Air-operated solenoid valve 7a, 7b becomes non-power status as a result, because
Supply of this fuel gas to burner 5a, 5b starts to be prevented.
On the other hand, it is then held (when S04 is determined as NO) when determining that switch Q2 is normal (startup separator does not occur)
The step of row is for determining the failure of switch Q3 (STEP2).In the step of determining the failure of switch Q3 (STEP2), pass through step
Rapid S05, main microcomputer 60 assign the control instruction S2 of H level to driving circuit 40, make switch Q2 on-state.It is secondary micro-
Type computer 70 assigns the control instruction S3 of L level to driving circuit 40, so that switch Q3 is dissengaged positions.Main microcomputer
60, by step S06, the control instruction S1a of H level are assigned to driving circuit 40, makes switch Q1a on-state.That is, make with
Two switches Q1a, Q2 in switch Q1a, Q2, Q3 that air-operated solenoid valve 7a is connected in series are on-state.
Then, main microcomputer 60 detects air-powered electromagnetic based on the signal from monitoring circuit 50 by step S07
Valve 7a is any state of energized state and non-power status.When detecting air-operated solenoid valve 7a is energized state, master is micro-
Type computer 60 determines that startup separator has occurred in switch Q3.(it is determined as in S08 when determining that startup separator has occurred in switch Q3
When YES), main microcomputer 60 enters step S13, uses the failure of 90 telling switch Q3 of remote controler.
Alternatively, it is also possible to be assigned by main microcomputer 60 to driving circuit 40 after the startup separator for informing switch Q3
The control instruction S2 for giving L level makes switch Q2 dissengaged positions.Air-operated solenoid valve 7a, 7b becomes non-power status as a result, because
Supply of this fuel gas to burner 5a, 5b starts to be prevented.
On the other hand, when determining that switch Q3 is normal when NO (in S08 determine), execute for judgement switch Q1a,
The step of startup separator of Q1b (STEP3).In the step of determining the failure of switch Q1a, Q1b (STEP3), pass through step
S09, main microcomputer 60 assign the control instruction S2 of H level to driving circuit 40, make switch Q2 on-state.It is secondary miniature
Computer 70 assigns the control instruction S3 of H level to driving circuit 40, makes switch Q3 on-state.Main microcomputer 60 is logical
Control instruction S1a, S1b that step S10 assigns L level to driving circuit 40 is crossed, so that switch Q1a, Q1b are dissengaged positions.That is,
Make two switch Q2, Q3 on-states in switch Q1a, Q2, Q3 for being connected in series with air-operated solenoid valve 7a.In addition, making
Two switches Q2, Q3 in switch Q1b, Q2, the Q3 being connected in series with air-operated solenoid valve 7b are on-state.
Main microcomputer 60 is by step S11, based on the signal from monitoring circuit 50, detect air-operated solenoid valve 7a,
7b is respectively any state of energized state and non-power status.It is main when detecting air-operated solenoid valve 7a is energized state
Microcomputer 60 determines that startup separator has occurred in switch Q1a.In addition, when detecting air-operated solenoid valve 7b is energized state,
Main microcomputer 60 determines that startup separator has occurred in switch Q1b.
It is main when determining that startup separator has occurred at least one of switch Q1a, Q1b (when being determined as YES in S12)
Microcomputer 60 enters step S13, uses the startup separator of 90 telling switch Q1a, Q1b of remote controler.In addition, main miniature calculating
Machine 60 and secondary microcomputer 70 can also make at least one of switch Q2, Q3 be dissengaged positions.Air-operated solenoid valve as a result,
7a, 7b become non-power status, therefore supply of the fuel gas to burner 5a, 5b starts to be prevented.
On the other hand, in the case where determining that switch Q1a, Q1b are normal situation (when being determined as NO in S12), master is miniature
Computer 60 and secondary microcomputer 70 terminate fault verification processing.
(structural example of hot water supply apparatus)
Finally, illustrating the structural example of the hot water supply apparatus of present embodiment.
In fig. 1 and 2, illustrating tool, there are two the structures of the hot water supply apparatus 1 of air-operated solenoid valve 7a, 7b, but
In hot water supply apparatus of the invention, the number of air-operated solenoid valve may be 1, or multiple.In addition, no matter at which
In the case of kind, it is electrically connected in series the 1st the~the 3 switch of switch with each air-operated solenoid valve.Also, utilize the 1st control unit control
Make the 1st switch and the 2nd switch be switched on and off, and using the 2nd control unit control the 3rd switch being switched on and off.
The 1st control unit and the 2nd control unit can make air-operated solenoid valve non-power status independently of one another as a result, cutting
Supply of the fuel gas to burner.In addition, two in the 1st the~the 3 switch of switch switch the feelings that startup separator has occurred
Under condition, it can prevent from carrying out the energization to air-operated solenoid valve in the other places of the intention of the 1st control unit and the 2nd control unit.
As shown in Fig. 2, preferably, being controlled in the tool of hot water supply apparatus 1 there are two in the case where air-operated solenoid valve 7a, 7b
The string of air-operated solenoid valve 7a Yu switch Q1a is connected in parallel in the driving circuit 40 of device 30 between supply lines 82 and ground connection wiring 84
Join circuit and the series circuit of air-operated solenoid valve 7b and switch Q1b.In this case, air-operated solenoid valve 7a corresponds to the " the 1st
Valve ", switch Q1a correspond to " the 1st switch ", and the series circuit of air-operated solenoid valve 7a and switch Q1a constitute " the 1st series circuit ".
In addition, air-operated solenoid valve 7b corresponds to " the 2nd valve ", switch Q1b corresponds to " the 4th switch ", air-operated solenoid valve 7b and switch Q1b's
Series circuit constitutes " the 2nd series circuit ".
In this way, can between the electrical path of air-operated solenoid valve 7a and the electrical path of air-operated solenoid valve 7b common switch
Q2,Q3.In addition, in the case where being 3 or more by air-operated solenoid valve increase, by the series electrical for making air-operated solenoid valve and switch
Road is connected in parallel with the 1st series circuit and the 2nd series circuit, also can between 3 or more series circuits common switch
Q2、Q3。
In addition, in Fig. 2, by being switched on and off for main 60 control switch Q1a, Q1b of microcomputer, but can also be by pair
70 control switch Q1a, Q1b of microcomputer is switched on and off.Alternatively, can also be by main microcomputer 60 and secondary microcomputer
One of calculation machine 70 control switch Q1a's is switched on and off, by another in main microcomputer 60 and secondary microcomputer 70
One control switch Q1b's is switched on and off.
In addition, being illustrated in Figure 1, air-operated solenoid valve 7a is inserted in gas supply pipe 6a, air-operated solenoid valve 7b is inserted in gas
The structure of body supply pipe 6b, but supplied as shown in fig. 6, two air-operated solenoid valves 7a, 7b can also be inserted in 1 gas in series
To pipe.In this case, by making air-operated solenoid valve 7a, 7b be non-power status, confession of the fuel shutoff gas to burner
It gives.
In addition, in the present embodiment, instantiate it is corresponding be used in hot water supply apparatus using gas as the combustion of fuel
The power control that the valve for supplying fuel in device carries out is burnt, but application of the invention is not limited to this structure.That is,
In the burner of the valve with other fuel such as supply petroleum, it can also be controlled in the same manner as present embodiment to the logical of the valve
Electricity.
Embodiments of the present invention are explained above, but embodiment of disclosure is to illustrate in all the elements,
It is not considered as to be restrictive description.The scope of the present invention is shown by claims, it is intended to encompass with claims
Being had altered in the impartial meaning and range.
Claims (8)
1. a kind of burner, wherein
The burner includes:
Combustion section generates heat using the burning of fuel；
1st valve, consists of, and by being powered to the 1st valve, so that the 1st valve is open, supplies the fuel to the combustion section；
1st control unit and the 2nd control unit are used to control the energization to the 1st valve；And
1st the~the 3 switch of switch, is electrically connected in series between power-supply wiring and ground connection wiring with the 1st valve,
1st switch and the 2nd switch are switched on and off by the 1st control unit control respectively,
3rd switch is switched on and off by the 2nd control unit control, also,
When~the 3 switch of the 1st switch is on-state, the 1st valve is energized.
2. burner according to claim 1, wherein
The burner further includes the abnormal informing portion for informing the burner,
1st control unit and the 2nd control unit are respectively structured as detecting the energized state of the 1st valve,
The 1st valve is detected in the case where making any two switch in~the 3 switch of the 1st switch be on-state
Energized state when, the 1st control unit or the 2nd control unit make the informing portion inform the exception of the burner.
3. burner according to claim 2, wherein
The 1st valve is detected in the case where making any two switch in~the 3 switch of the 1st switch be on-state
Energized state when, the 1st control unit and the 2nd control unit make at least one of described any two switch for cutting shape
State.
4. burner described in any one of claim 1 to 3, wherein
One of 1st control unit and the 2nd control unit are the main control units of the blanket control burner,
The other of 1st control unit and the 2nd control unit are independently controlled relative to the main control unit to the described 1st
The sub-control portion of the energization of valve,
The main control unit and the sub-control portion execute two-way communication.
5. burner described in any one of claim 1 to 3, wherein
1st series circuit of the 1st valve and the 1st switch is connected between the power-supply wiring and ground connection wiring,
2nd switch and the 3rd switch are connected between the power-supply wiring and the 1st series circuit, or connection
Between the 1st series circuit and ground connection wiring.
6. burner according to claim 4, wherein
1st series circuit of the 1st valve and the 1st switch is connected between the power-supply wiring and ground connection wiring,
2nd switch and the 3rd switch are connected between the power-supply wiring and the 1st series circuit, or connection
Between the 1st series circuit and ground connection wiring.
7. burner according to claim 5, wherein
The burner further include:
2nd valve, consists of, and by being powered to the 2nd valve, so that the 2nd valve is open, supplies the fuel to the combustion section；
And
4th switch is electrically connected in series between the power-supply wiring and ground connection wiring with the 2nd valve, and by
The control of any one of 1st control unit and the 2nd control unit is switched on and off,
2nd series circuit of the 2nd valve and the 4th switch between the power-supply wiring and the ground connection are routed with it is described
1st series circuit is connected in parallel,
When~the 4 switch of the 2nd switch is on-state, the 2nd valve is energized.
8. burner according to claim 6, wherein
The burner further include:
2nd valve, consists of, and by being powered to the 2nd valve, so that the 2nd valve is open, supplies the fuel to the combustion section；
And
4th switch is electrically connected in series between the power-supply wiring and ground connection wiring with the 2nd valve, and by
The control of any one of 1st control unit and the 2nd control unit is switched on and off,
2nd series circuit of the 2nd valve and the 4th switch between the power-supply wiring and the ground connection are routed with it is described
1st series circuit is connected in parallel,
When~the 4 switch of the 2nd switch is on-state, the 2nd valve is energized.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017-122909 | 2017-06-23 | ||
| JP2017122909A JP6953829B2 (en) | 2017-06-23 | 2017-06-23 | Combustion device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109114589A true CN109114589A (en) | 2019-01-01 |
| CN109114589B CN109114589B (en) | 2021-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810600410.8A Active CN109114589B (en) | 2017-06-23 | 2018-06-12 | Combustion apparatus |
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| JP (1) | JP6953829B2 (en) |
| CN (1) | CN109114589B (en) |
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| DE4000710A1 (en) * | 1989-01-19 | 1990-07-26 | Vaillant Joh Gmbh & Co | Electric control of fuel supply to boiler of hot water heating plant - using magnetic valve to control fuel supply to burner and switch contact in current line to valve coil operated by thermostat |
| IT1223958B (en) * | 1988-11-30 | 1990-09-29 | Marelli Autronica | CLOSED RING CONTROL DEVICE FOR IDLE ROTATION SPEED OF AN INTERNAL COMBUSTION ENGINE |
| CN1341825A (en) * | 1998-01-23 | 2002-03-27 | 张凡 | Magnetic latching solenoid valve for safe protection device of combustion equipment |
| CN2535718Y (en) * | 2002-03-28 | 2003-02-12 | 温锡钦 | Adjustable constant-temp. gas water heater |
| CN1664443A (en) * | 2004-03-02 | 2005-09-07 | 列洛公开有限公司 | Burner flame control unit |
| JP3886461B2 (en) * | 2003-02-06 | 2007-02-28 | リンナイ株式会社 | Gas stove |
| CN101052842A (en) * | 2005-01-26 | 2007-10-10 | 株式会社能率 | Combustion control device |
| CN101566248A (en) * | 2009-05-15 | 2009-10-28 | 广州市煤气公司 | Fuel gas shutoff solenoid valve controller |
| CN101876455A (en) * | 2009-04-30 | 2010-11-03 | 博西华电器（江苏）有限公司 | Control system and gas stove using same |
| CN202674468U (en) * | 2012-06-26 | 2013-01-16 | 重庆工商职业学院 | Device for cutting off water during locking of door |
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2017
- 2017-06-23 JP JP2017122909A patent/JP6953829B2/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1223958B (en) * | 1988-11-30 | 1990-09-29 | Marelli Autronica | CLOSED RING CONTROL DEVICE FOR IDLE ROTATION SPEED OF AN INTERNAL COMBUSTION ENGINE |
| DE4000710A1 (en) * | 1989-01-19 | 1990-07-26 | Vaillant Joh Gmbh & Co | Electric control of fuel supply to boiler of hot water heating plant - using magnetic valve to control fuel supply to burner and switch contact in current line to valve coil operated by thermostat |
| CN1341825A (en) * | 1998-01-23 | 2002-03-27 | 张凡 | Magnetic latching solenoid valve for safe protection device of combustion equipment |
| CN2535718Y (en) * | 2002-03-28 | 2003-02-12 | 温锡钦 | Adjustable constant-temp. gas water heater |
| JP3886461B2 (en) * | 2003-02-06 | 2007-02-28 | リンナイ株式会社 | Gas stove |
| CN1664443A (en) * | 2004-03-02 | 2005-09-07 | 列洛公开有限公司 | Burner flame control unit |
| CN101052842A (en) * | 2005-01-26 | 2007-10-10 | 株式会社能率 | Combustion control device |
| CN101876455A (en) * | 2009-04-30 | 2010-11-03 | 博西华电器（江苏）有限公司 | Control system and gas stove using same |
| CN101566248A (en) * | 2009-05-15 | 2009-10-28 | 广州市煤气公司 | Fuel gas shutoff solenoid valve controller |
| CN202674468U (en) * | 2012-06-26 | 2013-01-16 | 重庆工商职业学院 | Device for cutting off water during locking of door |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2019007670A (en) | 2019-01-17 |
| CN109114589B (en) | 2021-12-28 |
| JP6953829B2 (en) | 2021-10-27 |
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