CN205825449U - Gas heater with intelligence air pressure system - Google Patents

Gas heater with intelligence air pressure system Download PDF

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Publication number
CN205825449U
CN205825449U CN201620698485.0U CN201620698485U CN205825449U CN 205825449 U CN205825449 U CN 205825449U CN 201620698485 U CN201620698485 U CN 201620698485U CN 205825449 U CN205825449 U CN 205825449U
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Prior art keywords
circuit
motor
control circuit
gas heater
described motor
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CN201620698485.0U
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Chinese (zh)
Inventor
张永杰
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Sakura Bath and Kitchen Products China Co Ltd
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Sakura Bath and Kitchen Products China Co Ltd
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Priority to CN201620698485.0U priority Critical patent/CN205825449U/en
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Abstract

nullThe utility model discloses a kind of gas heater with intelligence air pressure system,Including control circuit、Motor、Motor control circuit、Combustion controlling circuit、Motor rotary speed feedback circuit、Motor testing circuit、Blast testing circuit and burner circuit,Described motor testing circuit can detect the temperature of described motor,And transmit a signal to described control circuit,Described control circuit can transmit a signal to described motor control circuit,Described motor control circuit can drive and stop described motor operation,Described blast testing circuit can detect the size of blast,And transmit a signal to described control circuit,Described motor rotary speed feedback circuit can detect the rotating speed of described motor,And transmit a signal to described control circuit,Described control circuit can transmit a signal to described combustion controlling circuit,Described combustion controlling circuit can control described burner circuit wind resistance start.

Description

Gas heater with intelligence air pressure system
Technical field
This utility model relates to a kind of forced-exhaust gas water heater, is specifically related to a kind of combustion with intelligence air pressure system Gas water heater.
Background technology
For forced-ventilated gas water heater, when being arranged on high building or the bigger coastal city of wind-force, owing to using environment More complicated, during using combustion gas, usually there will be and cause water heater itself to transport because extraneous wind-force is relatively big The problems such as row or waste gas exceed standard, in order to reach Wind-Pressure Resistance and the effect of blast protection, gas heater is generally at hot water Device internally installed mechanical type blast switch, the wind resistance of system processes start and the blast switch inspection relying on mechanical type blast switch The signal output of slowdown monitoring circuit carries out wind resistance judgement, when extraneous blast reaches to be sufficient for blast switch start, passes through blast switch Testing circuit detecting blast switch start, and transmit activation signal to control chip, after control chip receives activation signal, send out Send instruction to combustion controlling circuit to carry out blowout protection, show dependent failure code, but this system needs by mechanical type Blast switch, the wind resistance parameter of system and sensitivity depend entirely on blast switch precision, therefore, the Wind-Pressure Resistance of system and blast The intelligence degree of the process such as protection is not high enough, it is impossible to meet people growing to gas heater comfortable, the Wind-Pressure Resistance of use Accuracy and use safety requirements.
Utility model content
In order to overcome drawbacks described above, this utility model provides a kind of gas heater with intelligence air pressure system, it is possible to The intelligent wind resistance realizing gas heater in the case of not using installation mechanical type blast switch processes, and i.e. carries out Wind-Pressure Resistance And blowout protection, there is Wind-Pressure Resistance accuracy high, reduce production cost, make the use of gas heater comfortable and safe Multiple advantage.
This utility model be the technical scheme is that to solve its technical problem
A kind of gas heater with intelligence air pressure system, including control circuit, motor, motor control circuit, burning Control circuit, motor rotary speed feedback circuit, motor testing circuit, blast testing circuit and burner circuit, described control electricity The outfan on road is electrically connected with the input of the input of described motor control circuit and described combustion controlling circuit respectively, institute The outfan stating motor control circuit is electrically connected with described motor, the outfan of described combustion controlling circuit and described burner Circuit is electrically connected with, and the input of described control circuit is electrically connected with the outfan of described blast testing circuit, described motor The input of testing circuit is electrically connected with the outfan of described motor, the outfan of described motor testing circuit and described control The input of circuit is electrically connected with, and described motor testing circuit can detect the temperature of described motor, and transmits a signal to described Control circuit, described control circuit can transmit a signal to described motor control circuit, and described motor control circuit can drive With the described motor operation of stopping, described blast testing circuit can detect the size of blast, and transmit a signal to described control electricity Road, described motor rotary speed feedback circuit can detect the rotating speed of described motor, and transmit a signal to described control circuit, described control Circuit processed can transmit a signal to described combustion controlling circuit, and described combustion controlling circuit can control described burner circuit and resist Wind start.
As further improvement of the utility model:
Being provided with motor current testing circuit, the input of described gas heater is defeated with described motor current testing circuit Going out end to connect, described motor current testing circuit is connected with described motor, and described motor current testing circuit can be detected described The electric current of motor, and transmit current signal to described control circuit.
As further improvement of the utility model:
Being provided with voltage detection circuit, the outfan of described voltage detection circuit is defeated with described gas heater Entering end to connect, described voltage detection circuit can detect the supply voltage of described gas heater, and transmits voltage signal To described control circuit.
As further improvement of the utility model:
Described combustion controlling circuit can control the automatic wind resistance start of described gas heater and include: described Combustion System electricity Road controls described motor control circuit raising rotation speed of fan and carries out automatic wind resistance action and the control combustion gas of described combustion controlling circuit Water heater reduces burning count and carries out wind resistance action.
As further improvement of the utility model:
Being provided with display device, described display device is connected with described gas heater, and described display device can show to come Working signal from described gas heater.
As further improvement of the utility model:
Described motor testing circuit includes a temperature sensor, and this temperature sensor one end is electric with the outfan of described motor Property connect, the other end and described control circuit are electrically connected with, and this temperature sensor can detect the temperature of described motor.
As further improvement of the utility model:
Being provided with burner feedback circuit, the input of this burner feedback circuit is electric with the outfan of described burner circuit Property connect, the input of the outfan of described burner feedback circuit and described control circuit is electrically connected with, and described burner is anti- Current feed circuit can detect closedown and the unlatching of described burner circuit, and transmits a signal to described control circuit.
This utility model beneficial effect: by arranging control circuit, motor, motor control circuit, combustion controlling circuit, horse Reaching speed feedback circuit, motor testing circuit, blast testing circuit and burner circuit, first, motor testing circuit detects Can described motor use, and then, the wind pressure value size that described control circuit detects according to blast testing circuit is to motor control Circuit transmissioning signal, motor control circuit controls motor according to the signal correspondence received and drives, when revolution, described horse Reach the rotating speed of speed feedback circuit detecting motor and transmit a signal to control circuit, control circuit according to the signal received to combustion Burning control circuit and send control signal, described combustion controlling circuit controls burner circuit with reality according to the signal correspondence received Existing wind resistance start, i.e. carries out Wind-Pressure Resistance action and blowout protection action, can make the wind-force of water heater tolerance certain limit, not affect The normal use of user, carries out wind resistance protection, shows failure code, remind the safety that user uses when reaching wind resistance ultimate value Property, the use making water heater is more comfortable, safety, during gas water heater working, the wind that real-time judgment is current effectively Pressure condition, by blast testing circuit and the combustion controlling circuit of gas heater, it is achieved water heater peace under having wind state Full use, compared with traditional blast protection, instead of the effect of traditional mechanical type blast switch.
Accompanying drawing explanation
Fig. 1 is this utility model theory diagram;
Fig. 2 is this utility model embodiment one theory diagram (being provided with motor current testing circuit);
Fig. 3 is this utility model embodiment two theory diagram (being provided with voltage detection circuit);
Fig. 4 is this utility model embodiment three theory diagram (being provided with burner feedback circuit).
Detailed description of the invention
Refer to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, it is former that it is respectively this utility model schematic diagram, this utility model embodiment one Reason block diagram (being provided with motor current testing circuit), this utility model embodiment two theory diagram (being provided with voltage detection circuit) With this utility model embodiment three theory diagram (being provided with burner feedback circuit), this utility model provides a kind of with intelligence wind The gas heater of pressure system, including control circuit, motor, motor control circuit, combustion controlling circuit, motor rotary speed feedback electricity Road, motor testing circuit, blast testing circuit and burner circuit, the outfan of described control circuit respectively with described motor The input of the input of control circuit and described combustion controlling circuit is electrically connected with, the outfan of described motor control circuit with Described motor is electrically connected with, and the outfan of described combustion controlling circuit is electrically connected with described burner circuit, described control electricity The input on road is electrically connected with the outfan of described blast testing circuit, the input of described motor testing circuit and described horse The outfan reached is electrically connected with, and the outfan of described motor testing circuit is electrically connected with the input of described control circuit, institute State motor testing circuit and can detect the temperature of described motor, and transmit a signal to described control circuit, described control circuit energy Enough transmitting a signal to described motor control circuit, described motor control circuit can drive and stop described motor operation, described Blast testing circuit can detect the size of blast, and transmits a signal to described control circuit, described motor rotary speed feedback circuit Can detect the rotating speed of described motor, and transmit a signal to described control circuit, described control circuit can transmit a signal to institute Stating combustion controlling circuit, described combustion controlling circuit can control described burner circuit wind resistance start.
In embodiment one, it is additionally provided with motor current testing circuit, the input of described control circuit and described motor current The outfan of testing circuit connects, and described motor current testing circuit is electrically connected with described motor, and described motor current detects Circuit can detect the electric current of described motor, and transmits current signal to described control circuit, so, is detected by motor current The electric current of circuit detecting motor, and feed back to control circuit, control circuit can be carried out wind resistance and judges, when the current value of feedback When exceeding limit value, control circuit instruction enters intelligent wind resistance and processes, and blower fan and firepower carry out certain adjustment, but due to The result impact that wind resistance is judged by the precision of current detection circuit is relatively big, and in AC blower fan system, it is achieved current sense Cost and precision difficulty and relatively costly, therefore, use motor current testing circuit detecting motor current to make windproof side Formula preferably uses DC fan system.
In embodiment two, being additionally provided with voltage detection circuit, the outfan of described voltage detection circuit is with described The input of control circuit connects, and described voltage detection circuit can detect the supply voltage of described gas heater, and Transmission voltage signal gives described control circuit, so, when judging whether the external world has blast, in combination with supply voltage detected value Judge, the judgement interference caused because of the change of supply voltage can be got rid of.
Preferably, described combustion controlling circuit can control described gas heater wind resistance action and includes: described burning control Circuit processed controls motor control circuit raising rotation speed of fan and carries out wind resistance action and described combustion controlling circuit control gas and hot water Device reduces burning count and carries out wind resistance action.
Preferably, being provided with display device, described display device electrically connects with described control circuit, and described display device can Show the working signal from described control circuit.So, described display device can show normally work, be in wind resistance work With the duty such as blowout protection, and when gas heater is in blowout protection, show failure code, with call user's attention Safety.
Preferably, described motor testing circuit includes a temperature sensor, this temperature sensor one end and described motor Outfan is electrically connected with, and the other end is electrically connected with described control circuit, and this temperature sensor can detect the temperature of described motor Degree, when motor temperature exceedes setting value, then motor testing circuit is to the signal of control circuit output motor exception, then control circuit Instruction motor control circuit terminates the operation of motor.
In embodiment three, it is additionally provided with burner feedback circuit, the input of this burner feedback circuit and described burner The outfan of circuit is electrically connected with, and the outfan of described burner feedback circuit electrically connects with the input of described control circuit Connecing, described burner feedback circuit can detect closedown and the unlatching of described burner circuit, and transmits a signal to described control Circuit.
This utility model gas heater intelligence air pressure system operation principle is as follows:
Whether the motor of wind pressure value size that control circuit detects according to blast testing circuit and the detection of motor testing circuit Can be properly functioning, export a pwm signal to motor control circuit, drive motor operation by motor control circuit, then through horse Reach speed feedback circuit and the rotating speed of motor is fed back to control circuit by a RPM signal.In normal conditions, certain PWM The corresponding certain RPM signal of signal, under having wind state, maintains like the RPM signal output of rotating speed, control circuit output Pwm signal can reduce, and system just can be determined whether that by the exporting change of pwm signal needing to enter intelligent wind resistance processes, with Sample, the pwm signal keeping control circuit output is constant, and the speed feedback signal RPM of motor can rise, system turning by motor The change of fast feedback signal RPM just can be determined whether that needing to enter intelligent wind resistance processes, when after environment recovery normal condition, hot Hydrophone can reopen, and reuses.
Particularly, by the electric current of motor current testing circuit detecting motor, and control circuit can be fed back to, then pass through Control circuit carries out wind resistance judgement, and when the current value of feedback exceedes limit value, control circuit instruction enters at intelligent wind resistance Reason, carries out certain adjustment to blower fan and firepower, but the result impact judged wind resistance due to the precision of current detection circuit is relatively Greatly, and in AC blower fan system, it is achieved the cost of current sense and precision difficulty and relatively costly, therefore, motor electricity is used Current detection circuit detecting motor current is preferred for DC fan system to make windproof mode.Particularly, in order to get rid of electricity The impact on RPM signal of the source change in voltage, can increase voltage detection circuit and detect the change of supply voltage in real time, row Except the judgement interference caused because of the change of supply voltage, improve the accuracy that wind resistance judges further.
The intelligent wind resistance of system processes can be divided into three phases, and the first stage can control motor by combustion controlling circuit Control circuit improves rotation speed of fan and carries out wind resistance action, and after blast exceedes certain limit, system will be entered by combustion controlling circuit Row gas quantity controls, and carries out the wind resistance action of second stage by reducing certain count;After entering limit control, system will Carry out blowout protection action, as the wind resistance action of phase III, and show failure code, call user's attention safety.
Foregoing description is only the description to this utility model preferred embodiment, not any limit to this utility model scope Fixed, any change that the those of ordinary skill in this utility model field does according to the disclosure above content, modification, belong to right and want Seek the protection domain of book.

Claims (7)

1. the gas heater with intelligence air pressure system, it is characterised in that: include control circuit, motor, motor control Circuit, combustion controlling circuit, motor rotary speed feedback circuit, motor testing circuit, blast testing circuit and burner circuit, institute The outfan stating control circuit is electric with the input of the input of described motor control circuit and described combustion controlling circuit respectively Property connect, the outfan of described motor control circuit and described motor are electrically connected with, the outfan of described combustion controlling circuit with Described burner circuit is electrically connected with, and the input of described control circuit electrically connects with the outfan of described blast testing circuit Connecing, the input of described motor testing circuit is electrically connected with the outfan of described motor, the output of described motor testing circuit End is electrically connected with the input of described control circuit, and described motor testing circuit can detect the temperature of described motor, and pass Defeated signal gives described control circuit, and described control circuit can transmit a signal to described motor control circuit, described motor control Circuit can drive and stop described motor operation, and described blast testing circuit can detect the size of blast, and transmit signal To described control circuit, described motor rotary speed feedback circuit can detect the rotating speed of described motor, and transmits a signal to described control Circuit processed, described control circuit can transmit a signal to described combustion controlling circuit, and described combustion controlling circuit can control institute State burner circuit wind resistance start.
Gas heater with intelligence air pressure system the most according to claim 1, it is characterised in that: it is provided with motor current Testing circuit, the input of described gas heater connects with the outfan of described motor current testing circuit, described motor electricity Current detection circuit is connected with described motor, and described motor current testing circuit can detect the electric current of described motor, and transmits electricity Stream signal gives described control circuit.
Gas heater with intelligence air pressure system the most according to claim 1, it is characterised in that: it is provided with supply voltage Testing circuit, the outfan of described voltage detection circuit connects with the input of described gas heater, described power supply electricity Pressure testing circuit can detect the supply voltage of described gas heater, and transmits voltage signal to described control circuit.
Gas heater with intelligence air pressure system the most according to claim 1, it is characterised in that: described Combustion System Circuit can control the automatic wind resistance start of described gas heater and include: described combustion controlling circuit controls described motor control electricity Road raising rotation speed of fan carries out automatic wind resistance action and described combustion controlling circuit controls gas heater reduction burning count and enters Row wind resistance action.
5. according to the gas heater with intelligence air pressure system described in any one of Claims 1-4, it is characterised in that: set Having display device, described display device to be connected with described gas heater, described display device can show from described combustion gas The working signal of water heater.
Gas heater with intelligence air pressure system the most according to claim 1, it is characterised in that: described motor detects Circuit includes a temperature sensor, and this temperature sensor one end is electrically connected with the outfan of described motor, and the other end is with described Control circuit is electrically connected with, and this temperature sensor can detect the temperature of described motor.
Gas heater with intelligence air pressure system the most according to claim 1, it is characterised in that: it is provided with burner anti- Current feed circuit, the input of this burner feedback circuit is electrically connected with the outfan of described burner circuit, and described burner is anti- The outfan of current feed circuit is electrically connected with the input of described control circuit, and described burner feedback circuit can detect described combustion The closedown of burner circuit and unlatching, and transmit a signal to described control circuit.
CN201620698485.0U 2016-07-05 2016-07-05 Gas heater with intelligence air pressure system Active CN205825449U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620698485.0U CN205825449U (en) 2016-07-05 2016-07-05 Gas heater with intelligence air pressure system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620698485.0U CN205825449U (en) 2016-07-05 2016-07-05 Gas heater with intelligence air pressure system

Publications (1)

Publication Number Publication Date
CN205825449U true CN205825449U (en) 2016-12-21

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107339809A (en) * 2017-01-24 2017-11-10 宁波方太厨具有限公司 A kind of method for controlling combustion of gas heater
CN107339810A (en) * 2017-01-24 2017-11-10 宁波方太厨具有限公司 A kind of method for controlling combustion of the gas heater based on DC fan
CN109237794A (en) * 2017-07-11 2019-01-18 博世热力技术(上海)有限公司 Water heater blower control method, control device and blower

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107339809A (en) * 2017-01-24 2017-11-10 宁波方太厨具有限公司 A kind of method for controlling combustion of gas heater
CN107339810A (en) * 2017-01-24 2017-11-10 宁波方太厨具有限公司 A kind of method for controlling combustion of the gas heater based on DC fan
CN107339809B (en) * 2017-01-24 2019-09-20 宁波方太厨具有限公司 A kind of method for controlling combustion of gas heater
CN107339810B (en) * 2017-01-24 2019-09-20 宁波方太厨具有限公司 A kind of method for controlling combustion of the gas heater based on DC fan
CN109237794A (en) * 2017-07-11 2019-01-18 博世热力技术(上海)有限公司 Water heater blower control method, control device and blower

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