CN201811352U - Wall-mounted furnace controller - Google Patents
Wall-mounted furnace controller Download PDFInfo
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- CN201811352U CN201811352U CN2010205424587U CN201020542458U CN201811352U CN 201811352 U CN201811352 U CN 201811352U CN 2010205424587 U CN2010205424587 U CN 2010205424587U CN 201020542458 U CN201020542458 U CN 201020542458U CN 201811352 U CN201811352 U CN 201811352U
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- 239000000523 sample Substances 0.000 claims abstract description 133
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 48
- 238000005070 sampling Methods 0.000 claims abstract description 35
- 238000010438 heat treatment Methods 0.000 claims description 34
- 230000011664 signaling Effects 0.000 claims description 33
- 238000013500 data storage Methods 0.000 claims description 22
- 238000001914 filtration Methods 0.000 claims description 13
- 239000004020 conductor Substances 0.000 claims description 9
- 238000002955 isolation Methods 0.000 claims description 6
- 239000008236 heating water Substances 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000013021 overheating Methods 0.000 abstract 2
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 10
- 239000007789 gas Substances 0.000 description 8
- 238000002485 combustion reaction Methods 0.000 description 2
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000567 combustion gas Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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Abstract
The utility model discloses a wall-mounted furnace controller, which relates to the technical field of a heat supply device, in particular to a controller for a wall-mounted furnace heat supply device. The wall-mounted furnace controller comprises a sanitary water temperature probe, a heating water temperature probe, a wind pressure and water pressure overheating safety switch sampling circuit, a flame current sampling circuit, a water flow frequency sampling circuit, a microprogrammed control unit (MCU) control module, an output control circuit for a fan, a water pump, a three-way valve and an igniter, a proportional valve control circuit and a gas valve control circuit, wherein the sanitary water temperature probe, the heating water temperature probe, the wind pressure and water pressure overheating safety switch sampling circuit, the flame current sampling circuit and the water flow frequency sampling circuit are used as sampling devices; the MCU control module is used as a control device; and the output control circuit for the fan, the water pump, the three-way valve and the igniter, the proportional valve control circuit and the gas valve control circuit are used as regulating devices. The wall-mounted furnace controller has the beneficial effects that a fan relay switch, a gas valve live wire relay switch, a gas valve zero line relay are all connected in series with a gas valve AC220V power supply and control the gas valve AC220V power supply; and when any two of relay switches go wrong, a gas valve cannot be opened so as to guarantee the safety of a user.
Description
Technical field
The utility model relates to the heating plant technical field, relates in particular to the controller of wall hanging stove heating plant.
Background technology
A good control system is that the wall hanging stove is normal, effective assurance of safe combustion operation, and detection, maintenance, regular job and accident analysis etc. all are significant.Because the change of the startup self check of wall hanging stove, safeguard protection, igniting operation, operating mode very major part is finished by controller.But still there are problems in the control system of wall hanging stove at safe ready at present, also has some leaks in the control of burnt gas valve.
The utility model content
The utility model aims to provide a kind of controller with wall hanging stove heating plant at the deficiency of above-mentioned technical problem, and it is more accurate accurate to make in combustion gas control, has increased safety coefficient.
The utility model is achieved through the following technical solutions: the wall hanging furnace controller comprises health coolant-temperature gage probe, heating coolant-temperature gage probe, the overheated safety switch sample circuit of blast hydraulic pressure, flame current sample circuit and current frequency sampling circuit as sampling apparatus; MCU control module as control device; Blower fan water pump triple valve igniter output control circuit, Proportion valve controlling circuit and air valve control circuit as adjusting device; Described health coolant-temperature gage probe is provided with health coolant-temperature gage probe signal output interface, described heating coolant-temperature gage probe is provided with heating coolant-temperature gage probe signal output interface, the overheated safety switch sample circuit of described blast hydraulic pressure is provided with the overheated safety switch sample circuit of blast hydraulic pressure signal output interface, described flame current sample circuit is provided with flame current sample circuit signal output interface, and described current frequency sampling circuit is provided with current frequency sampling circuit signal output interface; Described MCU control module is provided with health coolant-temperature gage probe signal input interface, heating coolant-temperature gage probe signal input interface, the overheated safety switch sample circuit of blast hydraulic pressure signal input interface, flame current sample circuit signal input interface and current frequency sampling circuit signal input interface; Described MCU control module also is provided with blower fan water pump triple valve igniter output control circuit handshake interface, Proportion valve controlling circuit handshake interface and air valve control circuit handshake interface; Described blower fan water pump triple valve igniter output control circuit is provided with blower fan water pump triple valve igniter output control circuit signaling interface, described Proportion valve controlling circuit is provided with the Proportion valve controlling circuit signaling interface, and described air valve control circuit is provided with the air valve control circuit signaling interface; Wherein, described health coolant-temperature gage probe signal output interface, heating coolant-temperature gage probe signal output interface, the overheated safety switch sample circuit of blast hydraulic pressure signal output interface, flame current sample circuit signal output interface and current frequency sampling circuit signal output interface respectively with described MCU control module on the health coolant-temperature gage probe signal input interface that is provided with, heating coolant-temperature gage probe signal input interface, the overheated safety switch sample circuit of blast hydraulic pressure signal input interface, flame current sample circuit signal input interface and current frequency sampling circuit signal input interface connect by conductor signal; The blower fan water pump triple valve igniter output control circuit handshake interface that is provided with on the described MCU control module, Proportion valve controlling circuit handshake interface and air valve control circuit handshake interface respectively with described blower fan water pump triple valve igniter output control circuit on the blower fan water pump triple valve igniter output control circuit signaling interface that is provided with, the Proportion valve controlling circuit signaling interface of Proportion valve controlling circuit setting and the air valve control circuit signaling interface of air valve control circuit setting connect by conductor signal.
Below above technical scheme is further elaborated:
The utility model also comprises EEPROM data storage chip, EEPROM data storage chip is provided with EEPROM data storage chip signaling interface, also be provided with EEPROM data storage chip handshake interface on the described MCU control module, the EEPROM data storage chip handshake interface that is provided with on described EEPROM data storage chip signaling interface and the described MCU control module is connected by conductor signal.
Described health coolant-temperature gage probe and heating coolant-temperature gage probe comprise thermo-sensitive resistor, electric resistance partial pressure sample circuit, a RC low-pass filter circuit and first A/D convertor circuit separately, thermo-sensitive resistor, electric resistance partial pressure sample circuit, a RC low-pass filter circuit and first A/D convertor circuit are connected in series successively, and the heating coolant-temperature gage probe signal output interface that health coolant-temperature gage probe signal output interface that described health coolant-temperature gage probe is provided with and described heating coolant-temperature gage probe are provided with is arranged on the digital signal output end of the first corresponding A/D convertor circuit separately.
The overheated safety switch sample circuit of described blast hydraulic pressure comprises 12V dc source, the overheated safety switch of blast hydraulic pressure, the 2nd RC low-pass filter circuit and diode clamping circuit, and 12V dc source, the overheated safety switch of blast hydraulic pressure and the 2nd RC low-pass filter circuit are connected in series successively; The 2nd RC low-pass filter circuit current output terminal is connected with diode clamping circuit one end, and the overheated safety switch sample circuit of the blast hydraulic pressure signal output interface of the overheated safety switch sample circuit of described blast hydraulic pressure setting is arranged on the other end of diode clamping circuit.
Described flame current sample circuit comprises an ac circuit and flows back to the road always; Described ac circuit comprises that dc source, direct current become 200V alternating current circuit, first high-pass filtering circuit, fire testing needle, wall hanging stove casing, alternating current ground wire terminals and resistive isolation circuit; The flame current sample circuit comprises that dc source, direct current become 200V alternating current circuit, first high-pass filtering circuit, fire testing needle, wall hanging stove casing, alternating current ground wire terminals and resistive isolation circuit and connect and compose ac circuit successively; Described DC loop comprises fire testing needle, the 3rd RC low-pass filter circuit, voltage configuration circuit and second A/D convertor circuit; Fire testing needle, the 3rd RC low-pass filter circuit, voltage configuration circuit and second A/D convertor circuit are connected in series successively, and the flame current sample circuit signal output interface of described flame current sample circuit setting is arranged on the digital signal output end of second A/D convertor circuit.
Described current frequency sampling circuit comprises water flow sensing unit circuit, the 4th RC low-pass filter circuit, the water flow sensing unit circuit is electrically connected with the 4th RC low-pass filter circuit one end, and described current frequency sampling circuit signal output interface is arranged on the other end of the 4th RC low-pass filter circuit.
Blower fan water pump triple valve igniter output control circuit comprises first relay drive circuit, the blower fan water pump triple valve igniter output control circuit and first relay drive circuit are connected in series, and described blower fan water pump triple valve igniter output control circuit signaling interface is arranged on first relay drive circuit.
Proportion valve controlling circuit comprises dc source, PWM output circuit, electric current and voltage amplifying circuit, proportioning valve interface control circuit, current acquisition circuit, the 5th RC low-pass filter circuit and the 3rd A/D convertor circuit and MCU proportioning valve current acquisition circuit; Wherein, dc source, PWM output circuit, electric current and voltage amplifying circuit, proportioning valve interface control circuit and current acquisition circuit are connected in series; Current acquisition circuit, the 5th RC low-pass filter circuit, the 3rd A/D convertor circuit and MCU proportioning valve current acquisition circuit are connected in series; Described Proportion valve controlling circuit signaling interface is arranged on the MCU proportioning valve current acquisition circuit.
Described air valve control circuit comprises that air valve drives the light current circuit and air valve drives the forceful electric power circuit; Air valve drives the light current circuit and comprises that 12V dc source, blast hydraulic pressure overheat awitch, air valve drive relay power, MCU Air Valve Control electrical level output circuit, the 6th RC low-pass filter circuit, second relay drive circuit, air valve zero line relay circuit, MCU Air Valve Control impulse output circuit, second high-pass filtering circuit, rectification low-pass filter circuit, the 3rd relay drive circuit and air valve live wire relay circuit; Wherein, the 12V dc source, blast hydraulic pressure overheat awitch and air valve driving relay power are connected in series successively and form article one branch road, MCU Air Valve Control electrical level output circuit, the 6th RC low-pass filter circuit, second relay drive circuit and air valve zero line relay circuit are connected in series successively and form the second branch road, MCU Air Valve Control impulse output circuit, second high-pass filtering circuit, the rectification low-pass filter circuit, the 3rd relay drive circuit and air valve live wire relay circuit are connected in series successively and form the 3rd branch road, air valve drives relay power and is electrically connected described article one branch road by lead with air valve zero line relay circuit and air valve live wire relay circuit respectively, second branch road and the 3rd branch road parallel connection, air valve zero line relay circuit and air valve live wire relay circuit also are respectively arranged with ground wire terminal and are connected with ground wire; Air valve control circuit is provided with two air valve control circuit signaling interfaces, is separately positioned on MCU Air Valve Control electrical level output circuit and the MCU Air Valve Control impulse output circuit.Air valve drives the forceful electric power circuit and comprises alternating current 220V live wire input port, blower fan relay switch, air valve live wire relay switch, air valve interface circuit, air valve zero line relay switch and alternating current 220V zero line input port; Wherein, 220V live wire input port, blower fan relay switch, air valve live wire relay switch, air valve interface circuit, air valve zero line relay switch and alternating current 220V zero line input port are connected in series successively.
The beneficial effects of the utility model are: one, the utility model are provided with health coolant-temperature gage probe and heating coolant-temperature gage probe simultaneously, can control domestic water and heating water simultaneously; System data before two, the EEPROM data storage chip that is provided with of the utility model can saved system system cut-off after be cut off the power supply, system data before EEPROM data storage chip will be cut off the power supply after the energising is input on the MCU control module, makes the MCU control module normally accurately to control system; Three, gas valve relates on the safety problem of gas leakage, and the utility model has been taked three safety measures: 1, the MCU control module has adopted MCU Air Valve Control electrical level output circuit and MCU Air Valve Control impulse output circuit two classes output control; 2, blast hydraulic pressure overheat awitch is serially connected with on the air valve control circuit, can cut off gas valve immediately when blast, hydraulic pressure and any one overheated fault take place; 3, blower fan relay switch, air valve live wire relay switch, air valve zero line relay all are connected in series control air valve AC 220V power supply, when any two relay switches break down, can not open gas valve, have further guaranteed user security.
Description of drawings
Fig. 1 is a whole frame structure schematic diagram of the present utility model;
Fig. 2 is the circuit block diagram of the utility model health coolant-temperature gage probe and heating coolant-temperature gage probe;
Fig. 3 is the circuit block diagram of the overheated safety switch sample circuit of the utility model blast hydraulic pressure;
Fig. 4 is the ac circuit block diagram of the utility model flame current sample circuit;
Fig. 5 is the DC loop block diagram of the utility model flame current sample circuit;
Fig. 6 is the block diagram of the utility model current frequency sampling circuit;
Fig. 7 is the block diagram of the utility model blower fan water pump triple valve igniter output control circuit;
Fig. 8 is the block diagram of the utility model Proportion valve controlling circuit;
Fig. 9 is the block diagram that the air valve of the utility model air valve control circuit drives the light current circuit;
Figure 10 is the block diagram that the air valve of the utility model air valve control circuit drives the forceful electric power circuit.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is described further:
With reference to shown in Figure 1, the wall hanging furnace controller comprises health coolant-temperature gage probe, heating coolant-temperature gage probe, the overheated safety switch sample circuit of blast hydraulic pressure, flame current sample circuit and the current frequency sampling circuit as sampling apparatus; MCU control module as control device; Blower fan water pump triple valve igniter output control circuit, Proportion valve controlling circuit and air valve control circuit as adjusting device; Health coolant-temperature gage probe is provided with health coolant-temperature gage probe signal output interface, heating coolant-temperature gage probe is provided with heating coolant-temperature gage probe signal output interface, the overheated safety switch sample circuit of blast hydraulic pressure is provided with the overheated safety switch sample circuit of blast hydraulic pressure signal output interface, the flame current sample circuit is provided with flame current sample circuit signal output interface, and current frequency sampling circuit is provided with current frequency sampling circuit signal output interface; The MCU control module is provided with health coolant-temperature gage probe signal input interface, heating coolant-temperature gage probe signal input interface, the overheated safety switch sample circuit of blast hydraulic pressure signal input interface, flame current sample circuit signal input interface and current frequency sampling circuit signal input interface; The MCU control module also is provided with blower fan water pump triple valve igniter output control circuit handshake interface, Proportion valve controlling circuit handshake interface and air valve control circuit handshake interface; Blower fan water pump triple valve igniter output control circuit is provided with blower fan water pump triple valve igniter output control circuit signaling interface, Proportion valve controlling circuit is provided with the Proportion valve controlling circuit signaling interface, and air valve control circuit is provided with the air valve control circuit signaling interface; Wherein, health coolant-temperature gage probe signal output interface, heating coolant-temperature gage probe signal output interface, the overheated safety switch sample circuit of blast hydraulic pressure signal output interface, flame current sample circuit signal output interface and current frequency sampling circuit signal output interface respectively with described MCU control module on the health coolant-temperature gage probe signal input interface that is provided with, heating coolant-temperature gage probe signal input interface, the overheated safety switch sample circuit of blast hydraulic pressure signal input interface, flame current sample circuit signal input interface and current frequency sampling circuit signal input interface connect by conductor signal; The blower fan water pump triple valve igniter output control circuit handshake interface that is provided with on the MCU control module, Proportion valve controlling circuit handshake interface and air valve control circuit handshake interface respectively with blower fan water pump triple valve igniter output control circuit on the blower fan water pump triple valve igniter output control circuit signaling interface that is provided with, the Proportion valve controlling circuit signaling interface of Proportion valve controlling circuit setting and the air valve control circuit signaling interface of air valve control circuit setting connect by conductor signal.
Still with reference to shown in Figure 1, the utility model also comprises EEPROM data storage chip, EEPROM data storage chip is provided with EEPROM data storage chip signaling interface, also be provided with EEPROM data storage chip handshake interface on the MCU control module, the EEPROM data storage chip handshake interface that is provided with on EEPROM data storage chip signaling interface and the MCU control module is connected by conductor signal; EEPROM data storage chip can saved system after system cut-off system data before the outage, system data before EEPROM data storage chip will be cut off the power supply after the energising is input on the MCU control module, makes the MCU control module normally accurately to control system.
With reference to shown in Figure 2, health coolant-temperature gage probe and heating coolant-temperature gage probe comprise thermo-sensitive resistor, electric resistance partial pressure sample circuit, a RC low-pass filter circuit and first A/D convertor circuit separately, thermo-sensitive resistor, electric resistance partial pressure sample circuit, a RC low-pass filter circuit and first A/D convertor circuit are connected in series successively, and the heating coolant-temperature gage probe signal output interface that health coolant-temperature gage probe signal output interface that health coolant-temperature gage probe is provided with and heating coolant-temperature gage probe are provided with is arranged on the digital signal output end of the first corresponding A/D convertor circuit separately.Health coolant-temperature gage probe and heating coolant-temperature gage probe are thermo-sensitive resistor, the MCU controller is selected suitable sample resistance and thermo-sensitive resistor dividing potential drop for use, the analog data that obtains collects in the MCU controller after changing through filtering, AD, and sampled value is scaled needed temperature value by software.
With reference to shown in Figure 3, the overheated safety switch sample circuit of blast hydraulic pressure comprises 12V dc source, the overheated safety switch of blast hydraulic pressure, the 2nd RC low-pass filter circuit and diode clamping circuit, and 12V dc source, the overheated safety switch of blast hydraulic pressure and the 2nd RC low-pass filter circuit are connected in series successively; The 2nd RC low-pass filter circuit current output terminal is connected with diode clamping circuit one end, and the overheated safety switch sample circuit of the blast hydraulic pressure signal output interface of the overheated safety switch sample circuit of blast hydraulic pressure setting is arranged on the other end of diode clamping circuit.The overheated safety switch of blast hydraulic pressure is serially connected on the 12V dc source, utilizes the MCU control module to gather with the diode clamping circuit pressure regulation to about 5V again.
With reference to shown in Figure 4, the ac circuit of flame current sample circuit comprises that dc source, direct current become 200V alternating current circuit, first high-pass filtering circuit, fire testing needle, wall hanging stove casing, alternating current ground wire terminals and resistive isolation circuit; The flame current sample circuit comprises that dc source, direct current become 200V alternating current circuit, first high-pass filtering circuit, fire testing needle, wall hanging stove casing, alternating current ground wire terminals and resistive isolation circuit and connect and compose ac circuit successively.With reference to shown in Figure 5, the DC loop of flame current sample circuit comprises fire testing needle, the 3rd RC low-pass filter circuit, voltage configuration circuit and second A/D convertor circuit; Fire testing needle, the 3rd RC low-pass filter circuit, voltage configuration circuit and second A/D convertor circuit are connected in series successively, and the flame current sample circuit signal output interface of flame current sample circuit setting is arranged on the digital signal output end of second A/D convertor circuit.The flame current sample circuit is divided into ac circuit, DC loop two parts, and wherein ac circuit uses transformer 200V to exchange out-put supply, and the 200V high pressure is convenient to form between fire testing needle and the wall hanging stove casing electric current of microampere order when flame is arranged.
With reference to shown in Figure 6, current frequency sampling circuit comprises water flow sensing unit circuit, the 4th RC low-pass filter circuit, the water flow sensing unit circuit is electrically connected with the 4th RC low-pass filter circuit one end, and current frequency sampling circuit signal output interface is arranged on the other end of the 4th RC low-pass filter circuit.
With reference to shown in Figure 7, blower fan water pump triple valve igniter output control circuit comprises first relay drive circuit, the blower fan water pump triple valve igniter output control circuit and first relay drive circuit are connected in series, and described blower fan water pump triple valve igniter output control circuit signaling interface is arranged on first relay drive circuit.Blower fan water pump triple valve igniter all uses the AC220V power supply, and the MCU control module only needs to utilize relay to control its break-make in suitable.Triple valve also uses the AC220V power supply, and its relay switch then need use single-pole double-throw switch (SPDT) to be used for select connecting the water water route of still heating, health water water route.
With reference to shown in Figure 8, Proportion valve controlling circuit comprises dc source, PWM output circuit, electric current and voltage amplifying circuit, proportioning valve interface control circuit, current acquisition circuit, the 5th RC low-pass filter circuit and the 3rd A/D convertor circuit and MCU proportioning valve current acquisition circuit; Wherein, dc source, PWM output circuit, electric current and voltage amplifying circuit, proportioning valve interface control circuit and current acquisition circuit are connected in series; Current acquisition circuit, the 5th RC low-pass filter circuit, the 3rd A/D convertor circuit and MCU proportioning valve current acquisition circuit are connected in series; The Proportion valve controlling circuit signaling interface is arranged on the MCU proportioning valve current acquisition circuit.The MCU control module is by the make-and-break time of the dutycycle change proportioning valve power supply of adjusting pwm signal, and then control ratio valve electric current.Proportioning valve obtains the gas flow of gaseous-pressure correspondence again according to its Current Control gaseous-pressure by the nozzle of fixed size, control combustion power output with this, realizes the control to water temperature.
With reference to shown in Figure 9, the air valve of air valve control circuit drives the light current circuit and comprises that 12V dc source, blast hydraulic pressure overheat awitch, air valve drive relay power, MCU Air Valve Control electrical level output circuit, the 6th RC low-pass filter circuit, second relay drive circuit, air valve zero line relay circuit, MCU Air Valve Control impulse output circuit, second high-pass filtering circuit, rectification low-pass filter circuit, the 3rd relay drive circuit and air valve live wire relay circuit; Wherein, the 12V dc source, blast hydraulic pressure overheat awitch and air valve driving relay power are connected in series successively and form article one branch road, MCU Air Valve Control electrical level output circuit, the 6th RC low-pass filter circuit, second relay drive circuit and air valve zero line relay circuit are connected in series successively and form the second branch road, MCU Air Valve Control impulse output circuit, second high-pass filtering circuit, the rectification low-pass filter circuit, the 3rd relay drive circuit and air valve live wire relay circuit are connected in series successively and form the 3rd branch road, air valve drives relay power and is electrically connected described article one branch road by lead with air valve zero line relay circuit and air valve live wire relay circuit respectively, second branch road and the 3rd branch road parallel connection, air valve zero line relay circuit and air valve live wire relay circuit also are respectively arranged with ground wire terminal and are connected with ground wire; Air valve control circuit is provided with two air valve control circuit signaling interfaces, is separately positioned on MCU Air Valve Control electrical level output circuit and the MCU Air Valve Control impulse output circuit.With reference to shown in Figure 10, the air valve of air valve control circuit drives the forceful electric power circuit and comprises alternating current 220V live wire input port, blower fan relay switch, air valve live wire relay switch, air valve interface circuit, air valve zero line relay switch and alternating current 220V zero line input port; Wherein, 220V live wire input port, blower fan relay switch, air valve live wire relay switch, air valve interface circuit, air valve zero line relay switch and alternating current 220V zero line input port are connected in series successively.The MCU control module has adopted MCU Air Valve Control electrical level output circuit and MCU Air Valve Control impulse output circuit two classes output control; Blast hydraulic pressure overheat awitch is serially connected with on the air valve control circuit, can cut off gas valve immediately when blast, hydraulic pressure and any one overheated fault take place; Blower fan relay switch, air valve live wire relay switch, air valve zero line relay all are connected in series control air valve AC 220V power supply, when any two relay switches break down, can not open gas valve, have further guaranteed user security.
The announcement of book and instruction according to the above description, the utility model those skilled in the art can also carry out suitable change and modification to above-mentioned embodiment.Therefore, the specific embodiment that discloses and describe above the utility model is not limited to also should fall in the protection domain of claim of the present utility model modifications and changes more of the present utility model.In addition, although used some specific terms in this specification, these terms do not constitute any restriction to the utility model just for convenience of description.
Claims (9)
1. wall hanging furnace controller is characterized in that comprising:
Health coolant-temperature gage probe, heating coolant-temperature gage probe, the overheated safety switch sample circuit of blast hydraulic pressure, flame current sample circuit and current frequency sampling circuit as sampling apparatus;
MCU control module as control device;
Blower fan water pump triple valve igniter output control circuit, Proportion valve controlling circuit and air valve control circuit as adjusting device;
Described health coolant-temperature gage probe is provided with health coolant-temperature gage probe signal output interface, described heating coolant-temperature gage probe is provided with heating coolant-temperature gage probe signal output interface, the overheated safety switch sample circuit of described blast hydraulic pressure is provided with the overheated safety switch sample circuit of blast hydraulic pressure signal output interface, described flame current sample circuit is provided with flame current sample circuit signal output interface, and described current frequency sampling circuit is provided with current frequency sampling circuit signal output interface;
Described MCU control module is provided with health coolant-temperature gage probe signal input interface, heating coolant-temperature gage probe signal input interface, the overheated safety switch sample circuit of blast hydraulic pressure signal input interface, flame current sample circuit signal input interface and current frequency sampling circuit signal input interface;
Described MCU control module also is provided with blower fan water pump triple valve igniter output control circuit handshake interface, Proportion valve controlling circuit handshake interface and air valve control circuit handshake interface;
Described blower fan water pump triple valve igniter output control circuit is provided with blower fan water pump triple valve igniter output control circuit signaling interface, described Proportion valve controlling circuit is provided with the Proportion valve controlling circuit signaling interface, and described air valve control circuit is provided with the air valve control circuit signaling interface;
Wherein, described health coolant-temperature gage probe signal output interface, heating coolant-temperature gage probe signal output interface, the overheated safety switch sample circuit of blast hydraulic pressure signal output interface, flame current sample circuit signal output interface and current frequency sampling circuit signal output interface respectively with described MCU control module on the health coolant-temperature gage probe signal input interface that is provided with, heating coolant-temperature gage probe signal input interface, the overheated safety switch sample circuit of blast hydraulic pressure signal input interface, flame current sample circuit signal input interface and current frequency sampling circuit signal input interface connect by conductor signal; The blower fan water pump triple valve igniter output control circuit handshake interface that is provided with on the described MCU control module, Proportion valve controlling circuit handshake interface and air valve control circuit handshake interface respectively with described blower fan water pump triple valve igniter output control circuit on the blower fan water pump triple valve igniter output control circuit signaling interface that is provided with, the Proportion valve controlling circuit signaling interface of Proportion valve controlling circuit setting and the air valve control circuit signaling interface of air valve control circuit setting connect by conductor signal.
2. wall hanging furnace controller according to claim 1, it is characterized in that: also comprise EEPROM data storage chip, EEPROM data storage chip is provided with EEPROM data storage chip signaling interface, also be provided with EEPROM data storage chip handshake interface on the described MCU control module, the EEPROM data storage chip handshake interface that is provided with on described EEPROM data storage chip signaling interface and the described MCU control module is connected by conductor signal.
3. wall hanging furnace controller according to claim 1, it is characterized in that: described health coolant-temperature gage probe and heating coolant-temperature gage probe comprise thermo-sensitive resistor separately, the electric resistance partial pressure sample circuit, the one RC low-pass filter circuit and first A/D convertor circuit, thermo-sensitive resistor, the electric resistance partial pressure sample circuit, the one RC low-pass filter circuit and first A/D convertor circuit are connected in series successively, and the heating coolant-temperature gage probe signal output interface that health coolant-temperature gage probe signal output interface that described health coolant-temperature gage probe is provided with and described heating coolant-temperature gage probe are provided with is arranged on the digital signal output end of the first corresponding A/D convertor circuit separately.
4. wall hanging furnace controller according to claim 1, it is characterized in that: the overheated safety switch sample circuit of described blast hydraulic pressure comprises 12V dc source, the overheated safety switch of blast hydraulic pressure, the 2nd RC low-pass filter circuit and diode clamping circuit, and 12V dc source, the overheated safety switch of blast hydraulic pressure and the 2nd RC low-pass filter circuit are connected in series successively; The 2nd RC low-pass filter circuit current output terminal is connected with diode clamping circuit one end, and the overheated safety switch sample circuit of the blast hydraulic pressure signal output interface of the overheated safety switch sample circuit of described blast hydraulic pressure setting is arranged on the other end of diode clamping circuit.
5. wall hanging furnace controller according to claim 1 is characterized in that: described flame current sample circuit comprises an ac circuit and flows back to the road always;
Described ac circuit comprises that dc source, direct current become 200V alternating current circuit, first high-pass filtering circuit, fire testing needle, wall hanging stove casing, alternating current ground wire terminals and resistive isolation circuit; The flame current sample circuit comprises that dc source, direct current become 200V alternating current circuit, first high-pass filtering circuit, fire testing needle, wall hanging stove casing, alternating current ground wire terminals and resistive isolation circuit and connect and compose ac circuit successively;
Described DC loop comprises fire testing needle, the 3rd RC low-pass filter circuit, voltage configuration circuit and second A/D convertor circuit; Fire testing needle, the 3rd RC low-pass filter circuit, voltage configuration circuit and second A/D convertor circuit are connected in series successively, and the flame current sample circuit signal output interface of described flame current sample circuit setting is arranged on the digital signal output end of second A/D convertor circuit.
6. wall hanging furnace controller according to claim 1, it is characterized in that: described current frequency sampling circuit comprises water flow sensing unit circuit, the 4th RC low-pass filter circuit, the water flow sensing unit circuit is electrically connected with the 4th RC low-pass filter circuit one end, and described current frequency sampling circuit signal output interface is arranged on the other end of the 4th RC low-pass filter circuit.
7. wall hanging furnace controller according to claim 1, it is characterized in that: blower fan water pump triple valve igniter output control circuit comprises first relay drive circuit, the blower fan water pump triple valve igniter output control circuit and first relay drive circuit are connected in series, and described blower fan water pump triple valve igniter output control circuit signaling interface is arranged on first relay drive circuit.
8. wall hanging furnace controller according to claim 1 is characterized in that: Proportion valve controlling circuit comprises dc source, PWM output circuit, electric current and voltage amplifying circuit, proportioning valve interface control circuit, current acquisition circuit, the 5th RC low-pass filter circuit and the 3rd A/D convertor circuit and MCU proportioning valve current acquisition circuit;
Wherein, dc source, PWM output circuit, electric current and voltage amplifying circuit, proportioning valve interface control circuit and current acquisition circuit are connected in series;
Current acquisition circuit, the 5th RC low-pass filter circuit, the 3rd A/D convertor circuit and MCU proportioning valve current acquisition circuit are connected in series;
Described Proportion valve controlling circuit signaling interface is arranged on the MCU proportioning valve current acquisition circuit.
9. wall hanging furnace controller according to claim 1 is characterized in that: described air valve control circuit comprises that air valve drives the light current circuit and air valve drives the forceful electric power circuit;
Air valve drives the light current circuit and comprises that 12V dc source, blast hydraulic pressure overheat awitch, air valve drive relay power, MCU Air Valve Control electrical level output circuit, the 6th RC low-pass filter circuit, second relay drive circuit, air valve zero line relay circuit, MCU Air Valve Control impulse output circuit, second high-pass filtering circuit, rectification low-pass filter circuit, the 3rd relay drive circuit and air valve live wire relay circuit; Wherein, the 12V dc source, blast hydraulic pressure overheat awitch and air valve driving relay power are connected in series successively and form article one branch road, MCU Air Valve Control electrical level output circuit, the 6th RC low-pass filter circuit, second relay drive circuit and air valve zero line relay circuit are connected in series successively and form the second branch road, MCU Air Valve Control impulse output circuit, second high-pass filtering circuit, the rectification low-pass filter circuit, the 3rd relay drive circuit and air valve live wire relay circuit are connected in series successively and form the 3rd branch road, air valve drives relay power and is electrically connected described article one branch road by lead with air valve zero line relay circuit and air valve live wire relay circuit respectively, second branch road and the 3rd branch road parallel connection, air valve zero line relay circuit and air valve live wire relay circuit also are respectively arranged with ground wire terminal and are connected with ground wire;
Air valve control circuit is provided with two air valve control circuit signaling interfaces, is separately positioned on MCU Air Valve Control electrical level output circuit and the MCU Air Valve Control impulse output circuit;
Air valve drives the forceful electric power circuit and comprises alternating current 220V live wire input port, blower fan relay switch, air valve live wire relay switch, air valve interface circuit, air valve zero line relay switch and alternating current 220V zero line input port; Wherein, 220V live wire input port, blower fan relay switch, air valve live wire relay switch, air valve interface circuit, air valve zero line relay switch and alternating current 220V zero line input port are connected in series successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205424587U CN201811352U (en) | 2010-09-25 | 2010-09-25 | Wall-mounted furnace controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205424587U CN201811352U (en) | 2010-09-25 | 2010-09-25 | Wall-mounted furnace controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201811352U true CN201811352U (en) | 2011-04-27 |
Family
ID=43894292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205424587U Expired - Fee Related CN201811352U (en) | 2010-09-25 | 2010-09-25 | Wall-mounted furnace controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201811352U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102777972A (en) * | 2012-07-11 | 2012-11-14 | 李军 | Remote monitoring system for wall-mounted gas boiler |
| CN107621089A (en) * | 2017-10-18 | 2018-01-23 | 佛山市艾绅热能科技有限公司 | A kind of electric connection system of gas-heating water heater |
| CN109141495A (en) * | 2018-06-28 | 2019-01-04 | 华为技术有限公司 | Sensor interface apparatus |
-
2010
- 2010-09-25 CN CN2010205424587U patent/CN201811352U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102777972A (en) * | 2012-07-11 | 2012-11-14 | 李军 | Remote monitoring system for wall-mounted gas boiler |
| CN107621089A (en) * | 2017-10-18 | 2018-01-23 | 佛山市艾绅热能科技有限公司 | A kind of electric connection system of gas-heating water heater |
| CN109141495A (en) * | 2018-06-28 | 2019-01-04 | 华为技术有限公司 | Sensor interface apparatus |
| CN109141495B (en) * | 2018-06-28 | 2020-10-09 | 华为技术有限公司 | Sensor interface device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110427 Termination date: 20120925 |