CN209388147U - A kind of kitchen range thermocouple signal control wireless smoke stove linkage circuit - Google Patents

Abstract

The utility model discloses a kind of kitchen range thermocouple signals to control wireless smoke stove linkage circuit, including MCU control chip U1, emitting mould train TX1, amplifier comparator IC1, interface CN1 and interface CN2, the foot 1 series resistor R5 and capacitor C6 of the MCU control chip U1 is followed by one end of kitchen range ignition switch SW1, and the 4 series resistor R6 of foot of MCU control chip U1 is followed by the other end of kitchen range ignition switch SW1.This kitchen range thermocouple signal controls wireless smoke stove linkage circuit, being made comparisons using micro energy lose high precision operating amplifier IC1, device detects faint thermocouple TC1, thermocouple TC2 signal triggering control MCU control chip U1 drives AOK circuit wireless transmission signal, realizes the linkage of cigarette stove；Circuit is run using micro energy lose, realizes that dry cell works long hours；This circuit realizes auto upgrading under the premise of not changing existing kitchen range structure, and it is practical that cost is relatively low.

Description

A kind of kitchen range thermocouple signal control wireless smoke stove linkage circuit

Technical field

The utility model relates to household electrical appliances technical field of intelligence, specially a kind of kitchen range thermocouple signal control wireless smoke stove connection Dynamic circuit.

Background technique

Traditional major part kitchen range and smoke machine work independently, and smoke machine automatically turns on linkage work after failing to open kitchen range.Have small Although part realizes cigarette stove linkage function, identified using the installation potentiometer on valve body or using microswitch machinery Kitchen range state realizes, when accident extinguishing or only close main gas valve it is flame-out not valve body pass to 0 when or potentiometer abrasion contact Circuit is still to be kitchen range in working condition when bad.In addition these cigarette stove linkage circuits largely using continuous transmitting or are spaced very Bob is penetrated, severe jamming common channel, not power saving and do not meet Wireless Management Committee requirement.

Utility model content

The purpose of this utility model is to provide a kind of kitchen range thermocouple signals to control wireless smoke stove linkage circuit, this linkage Circuit only emits linkage signal when kitchen range working condition changes, and avoids continuously occupying common channel generation interference, conform to completely The requirement of the radio committee, solves the problems of the prior art.

To achieve the above object, the utility model provides the following technical solutions: a kind of kitchen range thermocouple signal control is wireless Cigarette stove linkage circuit, including MCU control chip U1, emitting mould train TX1, amplifier comparator IC1, interface CN1 and interface The foot 1 of CN2, the MCU control chip U1 concatenate one end that electricity sun R5 and capacitor C6 is followed by kitchen range ignition switch SW1, MCU control The 4 series resistor R6 of foot of coremaking piece U1 is followed by the other end of kitchen range ignition switch SW1；The foot DATA of the emitting mould train TX1 connects Meet the foot 5 of MCU control chip U1, the foot ANT connection antenna ANT1 of emitting mould train TX1；The foot 1 of the amplifier comparator IC1 is gone here and there Connecting resistance R4 and capacitor C9 is followed by the foot 2 of MCU control chip U1, and the 3 series resistor R2 of foot of amplifier comparator IC1 is followed by grafting The foot 1 of mouth CN1, the foot 2 of the 4 socket interface CN1 of foot of amplifier comparator IC1, the foot 5 of amplifier comparator IC1 connect+3V voltage；Institute The cathode that interface CN1 passes through interface CN2 connection left and right furnace electric thermo-couple TC1 and TC2 is stated, right furnace electric thermo-couple TC1 and TC2 is just Pole ground connection.

Preferably, the foot 3 of the amplifier comparator IC1 and foot 2 are using manner of comparison detection thermocouple electromotive force, i.e. "+" Input terminal detects thermocouple negative terminal signal, and "-" input terminal connects thermocouple anode as reference level for 0 current potential.

Preferably, capacitor C3 and TVS pipe ZD2 are parallel between the foot 3 and ground of the amplifier comparator IC1.

Preferably, the MCU control chip U1 is communicated to connect by antenna ANT1 and smoke machine.

Compared with prior art, the beneficial effects of the utility model are as follows:

1, this kitchen range thermocouple signal controls wireless smoke stove linkage circuit, and MCU controls chip U1 and uses kitchen range ignition switch SW1, which is dragged down, resets the wake-up of mouth RST level, and MCU, which controls chip U1 and is constantly in reset, during igniting enables MCU to control chip U1 The impulse train interference that pulse igniter is up to 20KV is avoided, that is, is easiest to disturbed MCU and is kept away using reset pattern during interference It opens.

2, this kitchen range thermocouple signal controls wireless smoke stove linkage circuit, and MCU controls chip U1 and uses 20 bit address codes+8 Position numeric data code writes linkage signal, and each MCU control chip U1 has unique address code, and address code 2²°=1048576, i.e., Address code just has repetition after 1000000, avoids the identical generation malfunction of address code between product, large-scale residence district is purchased by group or opened Hair quotient's packet fine fitment send household electrical appliances particularly important.

3, this kitchen range thermocouple signal controls wireless smoke stove linkage circuit, and MCU controls chip U1 low power operation, when standby Micro energy lose deep sleep, ignition switch triggering use interval sleep awakening battery saving mode acquisition thermocouple signal hair after resetting wake-up Penetrate linkage signal, MCU enters micro energy lose deep sleep when thermocouple cooling no signal, realizes that battery function electricity uses for a long time.

Detailed description of the invention

Fig. 1 is the circuit diagram of the utility model.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Referring to Fig. 1, a kind of kitchen range thermocouple signal controls wireless smoke stove linkage circuit, including MCU control chip U1, hair Penetrate mould group TX1, amplifier comparator IC1, interface CN1 and interface CN2, the 1 series resistor R5 of foot of the MCU control chip U1 One end of kitchen range ignition switch SW1 is followed by with capacitor C6, the 4 series resistor R6 of foot of MCU control chip U1 is followed by kitchen range igniting and opens Close the other end of SW1；The foot 5 of the foot DATA connection MCU control chip U1 of the emitting mould train TX1, the foot of emitting mould train TX1 ANT connection antenna ANT1: it is communicated to connect by MCU control chip U1 by antenna ANT1 and smoke machine, thus the work shape of kitchen range State is sent to smoke machine with wireless carrier or wired form；After the foot 1 series resistor R4 and capacitor C9 of the amplifier comparator IC1 The foot 2 of MCU control chip U1 is connect, the foot 1 of socket interface CN1 after the 3 series resistor R2 of foot of amplifier comparator IC1, amplifier compares It is parallel with capacitor C3 and TVS pipe ZD2 between the foot 3 and ground of device IC1, the foot 2 of the 4 socket interface CN1 of foot of amplifier comparator IC1, The foot 5 of amplifier comparator IC1 connects+3V voltage；The foot 3 and foot 2 of amplifier comparator IC1 is using manner of comparison detection thermocouple electricity Kinetic potential, i.e. "+" input terminal detect thermocouple negative terminal signal, and "-" input terminal connects thermocouple anode as reference level for 0 current potential；Institute The cathode that interface CN1 passes through interface CN2 connection left and right furnace electric thermo-couple TC1 and TC2 is stated, right furnace electric thermo-couple TC1's and TC2 Plus earth；When left and right, furnace does not catch fire i.e. left and right furnace electric thermo-couple TC1 and TC2 cold conditions when electromotive force be 0, internal resistance very little is equivalent to Short circuit, resistance R1, R2, R3 are equivalent to series connection bleeder circuit, and the foot 3 of amplifier comparator IC1 is that amplifier "+" input terminal divides to obtain The foot 1 of the voltage of input+2-3mV, this state amplifier comparator IC1 exports high level, and the foot 2 of MCU is just called out in low level 0 Awake work, therefore state MCU control chip U1 does not work, emitting mould train TX1, which does not work, yet is both at low-power consumption sleep shape State；When left and right furnace any one or i.e. left and right furnace electric thermo-couple TC1 and TC2 cold conditions when catching fire simultaneously, electromotive force is negative, about -4 to - 20mV, the foot 3 i.e. amplifier "+" input terminal for being followed by amplifier comparator IC1 through resistance R2, R3, which divides, is inputted -2 to -18mV Voltage, 1 level of amplifier comparator IC1 foot overturning output low level 0, triggering wakes up the foot 2 of MCU control chip U1, by sleep shape State switchs to working condition, and output starting-up signal to emitting mould train TX1 emits wireless signal to smoke exhaust ventilator, and smoke exhaust ventilator receives letter Blower work is controlled after number.

This kitchen range thermocouple signal controls wireless smoke stove linkage circuit, and MCU controls chip U1 and uses kitchen range ignition switch SW1 It drags down and resets the wake-up of mouth RST level, MCU, which controls chip U1 and is constantly in reset, during igniting enables MCU control chip U1 to keep away The impulse train interference that pulse igniter is up to 20KV is opened, that is, is easiest to disturbed MCU and is avoided using reset pattern during interference.

This kitchen range thermocouple signal controls wireless smoke stove linkage circuit, and MCU controls chip U1 and uses 20 bit address codes+8 Numeric data code writes linkage signal, and each MCU control chip U1 has unique address code, and address code 2²°=1048576, i.e., 100 Address code just has repetition after ten thousand, avoids the identical generation malfunction of address code between product, large-scale residence district is purchased by group or developed Quotient's packet fine fitment send household electrical appliances particularly important.

This kitchen range thermocouple signal controls wireless smoke stove linkage circuit, and MCU controls chip U1 low power operation, micro- when standby Power consumption deep sleep, ignition switch triggering use the acquisition thermocouple signal transmitting of interval sleep awakening battery saving mode after resetting wake-up Link signal, and MCU enters micro energy lose deep sleep when thermocouple cooling no signal, realizes that battery function electricity uses for a long time.

In summary: this kitchen range thermocouple signal controls wireless smoke stove linkage circuit, is put using micro energy lose high-accuracy arithmetic Big device IC1 makes comparisons, and device detects faint thermocouple TC1, thermocouple TC2 signal triggering control MCU control chip U1 drives AOK Circuit wireless transmission signal realizes the linkage of cigarette stove；Circuit is run using micro energy lose, realizes that dry cell works long hours；This circuit Auto upgrading is realized under the premise of not changing existing kitchen range structure, and that cost is relatively low is practical, thus effective solution is existing The problems in technology.

It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment Intrinsic element.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (4)

1. a kind of kitchen range thermocouple signal controls wireless smoke stove linkage circuit, including MCU control chip U1, emitting mould train TX1, fortune Put comparator IC1, interface CN1 and interface CN2, it is characterised in that: the 1 series resistor R5 of foot of the MCU control chip U1 One end of kitchen range ignition switch SW1 is followed by with capacitor C6, the 4 series resistor R6 of foot of MCU control chip U1 is followed by kitchen range igniting and opens Close the other end of SW1；The foot 5 of the foot DATA connection MCU control chip U1 of the emitting mould train TX1, the foot of emitting mould train TX1 ANT connection antenna ANT1；The foot 1 series resistor R4 and capacitor C9 of the amplifier comparator IC1 is followed by the foot of MCU control chip U1 The foot 1 of socket interface CN1,4 socket interface of foot of amplifier comparator IC1 after the 3 series resistor R2 of foot of 2, amplifier comparator IC1 The foot 5 of the foot 2 of CN1, amplifier comparator IC1 connects+3V voltage；The interface CN1 passes through interface CN2 connection left and right furnace thermoelectricity The cathode of even TC1 and TC2, the plus earth of right furnace electric thermo-couple TC1 and TC2.

2. a kind of kitchen range thermocouple signal according to claim 1 controls wireless smoke stove linkage circuit, it is characterised in that: institute For the foot 3 and foot 2 for stating amplifier comparator IC1 using manner of comparison detection thermocouple electromotive force, i.e. "+" input terminal detection thermocouple is negative End signal, "-" input terminal connect thermocouple anode as reference level for 0 current potential.

3. a kind of kitchen range thermocouple signal according to claim 1 controls wireless smoke stove linkage circuit, it is characterised in that: institute It states and is parallel with capacitor C3 and TVS pipe ZD2 between the foot 3 and ground of amplifier comparator IC1.

4. a kind of kitchen range thermocouple signal according to claim 1 controls wireless smoke stove linkage circuit, it is characterised in that: institute MCU control chip U1 is stated to communicate to connect by antenna ANT1 and smoke machine.