CN2347116Y

CN2347116Y - Linkage controller of water heater and exhausting fan

Info

Publication number: CN2347116Y
Application number: CN 98240386
Authority: CN
Inventors: 黄明浔
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-08-25
Filing date: 1998-08-25
Publication date: 1999-11-03
Anticipated expiration: 2008-08-25

Abstract

The utility model relates to a linkage controller of a water heater and an exhaust fan, which is composed of an electronic switch circuit composed of a triode BG< 1 > and a resistor R< 1 >, a power cutting delay circuit composed of a capacitor and a resistor, a relay control circuit composed of a transistor or an integrated circuit, a power supply circuit composed of a diode, a filter capacitor and a transformer, and an exhaust fan control circuit composed of a relay normally open contact and an arc extinguishing capacitor, wherein, all the circuits are connected orderly. One end A of the utility model is connected to the normally closed contact of a microswitch of a water heater, the other end F is connected to ground, and both ends of the relay normally open contact are respectively connected with both ends of an exhaust fan switch. The utility model has the advantages of simple structure, convenient use, reliable work and good safety performance.

Description

Water heater and exhaust fan linkage controller

The utility model relates to a kind of water heater safety's device, particularly water heater and exhaust fan linkage controller.

At present, the toxic emission mode of water heater has two kinds, a kind of tracheae that runs in is discharged outdoor, another kind is that exhaust fan is installed, how to make when using water heater, the controlled running simultaneously of exhaust fan, so that the waste gas that produces when in time water heater being burnt is discharged outdoor, ZL96229892.1 discloses the control device that a kind of water heater water valve is controlled ventilating fan automatically, this device is by stationary cam on the water heater valve shaft, connecting rod, fixedly microswitch is controlled the exhaust fan running automatically on air valve body, and the waste gas that produces when water heater is burnt is discharged outdoor, is beneficial to health.Need to transform water heater because cam, connecting rod, microswitch etc. are installed, be unfavorable for promoting the use of.

The purpose of this utility model is to provide a kind of and utilizes the original microswitch of family expenses water control automatic fuel gas fast water heater, need not to change water heater just can realize controlling automatically water heater and the exhaust fan linkage controller that water heater and exhaust fan link simultaneously.

For reaching above-mentioned purpose, water heater of the utility model and exhaust fan linkage controller are by with triode BG ₁, resistance R ₁The electronic switching circuit that constitutes; Outage delay circuit with electric capacity, resistance composition; Control relay circuit with triode or integrated circuit formation; Power circuit with diode, filter capacitor and transformer composition, the exhaust fan control circuit that constitutes with relay normally open contact and arc extinguishing electric capacity constitutes, each circuit connects successively, the outage delay circuit of forming with electric capacity, resistance is connected between electronic switching circuit and the control relay circuit electronic switching circuit triode BG ₁Colelctor electrode connect positive source, triode BG ₁Emission E point very, triode BG ₁Base stage be the normally-closed contact JK that an exit A of controller is connected on the water heater microswitch ₂On, another exit F of controller is the stationary contact JK that earth terminal is connected on the water heater microswitch ₀On, relay J normally opened contact J ₁The two ends of two ends tap exhaust fan K switch.

Because adopt said structure, water heater of the utility model and exhaust fan linkage controller have the following advantages:

1, simple structure, easy to use does not need former water heater is transformed, and only needs controller is connected and can uses with the microswitch of water heater;

2, reliable operation, security performance are good, particularly be provided with the outage delay circuit, when cutting off the water in short-term in the water heater use, exhaust fan still can continuous operation, exhaust fan also can stall in water heater is stopped using back 1-2 minute, is beneficial to and discharges indoor burnt gas outdoor fully, fully.

Below in conjunction with drawings and Examples, the water heater of the utility model and the operation principle and the technical characterictic of exhaust fan linkage controller are described further.

Fig. 1: the electric functional-block diagram of the utility model controller

The circuit diagram of Fig. 2: embodiment one

The circuit diagram of Fig. 3: embodiment two

Embodiment one:

A kind of water heater of whole employing resolution elements and exhaust fan linkage controller.As shown in Figure 2, this controller is by with triode BG ₁, resistance R ₁Electronic switch (start-up control) circuit that constitutes; With capacitor C ₁, resistance R ₂With triode BG ₂Outage delay circuit and the actuating of relay control circuit formed; With diode D ₁-D ₄The bridge full wave rectifier, the capacitor C that constitute ₂With the power circuit of transformer B composition, with relay J normally opened contact J ₁With the arc extinguishing capacitor C ₃The exhaust fan control circuit that constitutes constitutes, and each circuit connects successively, triode BG ₁Base stage be an exit A of controller, another exit F of controller is an earth terminal, triode BG ₁Colelctor electrode connect positive source, triode BG ₁Emission E point very, capacitor C ₁Two ends are connected to respectively between E, the F, resistance R ₂Termination E point, another termination triode BG ₂Base stage, triode BG ₂Colelctor electrode be connected with relay J, its grounded emitter.

One exit A of controller is connected on the normally-closed contact JK of water heater microswitch ₂On, other end earth terminal F meets the stationary contact JK of microswitch ₀, relay J normally opened contact J ₁The two ends of two ends tap exhaust fan K switch.

Operation principle is as follows:

When not using water heater, microswitch JK is in normally off, with controller A point (triode BG ₁Base stage) ground connection, its current potential is zero, triode BG ₁End.Capacitor C ₁Fail to charge, E point current potential is zero, triode BG ₂Also end.The relay J coil is failed electricly, is failure to actuate.Be connected in parallel on the relay J normally opened contact J on the exhaust fan K switch ₁Not closed, exhaust fan is not worked.When the starting water heater, the aqueous vapor interstage valve promotes microswitch JK, makes the normally-closed contact JK of microswitch JK ₂Disconnect, simultaneously with normally opened contact JK ₁JK ₀Closure is connected ignition power, lights a fire, and this moment, the A point became high potential, triode BG ₁Saturation conduction, power supply passes through BG ₁To capacitor C ₁Charging (charging process moment finish), the E point becomes high potential, triode BG ₂Saturation conduction, relay J get electric adhesive, its normally opened contact J ₁The closed exhaust fan power supply of connecting, exhaust fan is devoted oneself to work.After water heater was stopped using, microswitch JK resetted, JK ₂, JK ₀Closure, the A point is got back to zero potential, triode BG ₁End, at this moment capacitor C ₁Pass through resistance R ₂To triode BG ₂Discharge, triode BG ₂Continue conducting, keep the relay J adhesive, exhaust fan works on.Adjust capacitor C ₁And resistance R ₂Numerical value, making discharge time is 1-2 minute, works as capacitor C ₁Energy discharge and to finish triode BG ₂End, relay J discharges, and exhaust fan quits work.Circuit is got back to original state.Owing to stop using behind the water heater in 1-2 minute the exhaust fan can stall, so in the process of using water heater,, can not influence the operate as normal of exhaust fan if stop water heater in short-term.Arc extinguishing capacitor C among Fig. 2 ₃Effect be contact J when reducing power on/off ₁On arc light, to prolong the life-span of relay J contact.D ₅Be the protection diode, produce high pressure when preventing the relay coil power on/off, damage electronic component.

Embodiment two

Water heater and exhaust fan linkage controller that a kind of control relay circuit adopts integrated package 555 time base circuits to form.As shown in Figure 3, this controller is connected into equivalent trigger formation control relay circuit with integrated package 555 time base circuits; Strong reset terminal (4 pin) is connected to power supply V with power end (8 pin) _DD, reset terminal R (6 pin) and set end S (2 pin) are connected on the E point of circuit, and discharge end Q (7 pin) passes through R ₂Be connected to the E point, control end (5 pin) passes through capacitor C ₂Ground connection, earth terminal (1 pin) is ground connection directly, and output Q (3 pin) meets load-relay J.C in the circuit ₁With R ₂Constitute the outage delay circuit, other circuit parts: as electronic switching circuit, the exhaust fan control circuit, power circuits etc. are identical with embodiment one.

The course of work:

When not using water heater, JK ₂-JK ₀Closure, A point earthing potential are zero, BG ₁End C ₁Fail to charge, E point current potential is zero, makes R, the S end of 555 time base circuits be low level, and R=0, S=0, output Q are high level, Q=1, and not adhesive of relay J, exhaust fan is not activated, and discharge end Q disconnects.When starting water heater, JK ₂-JK ₀Disconnect, the A point becomes high potential, BG ₁By saturation conduction, power supply passes through BG ₁Rapidly to C ₁Charging is when the E point voltage rises to greater than 2/3V _DDThe time, equivalent trigger input becomes R=1, S=1, and output switching activity is low level Q=0, and the exhaust fan power supply is connected in the relay J adhesive, and exhaust fan is devoted oneself to work, and this moment, discharge end Q closure was connected with ground, but because BG ₁Saturation conduction makes the E point remain high level.When stopping using water heater, microswitch JK ₂, JK ₀Closure makes A point current potential return zero, BG ₁End, at this moment C ₁Pass through R ₂Begin discharge, adjust C ₁And R ₂Numerical value, make discharge time about 1～2 minute, after the discharge, the E point voltage drops to 1/3V _DD, equivalent trigger input becomes low level, and R=0, S=0, output switching activity are high level Q=1, and relay J discharges, and exhaust fan quits work, and discharge end Q disconnects, and circuit is got back to original state.

Claims

1, a kind of water heater and exhaust fan linkage controller, it is characterized in that: this controller comprises with triode BG ₁, resistance R ₁The electronic switching circuit of forming; With capacitor C ₁, resistance R ₂The outage delay circuit of forming; Control relay circuit with triode or integrated circuit composition; With diode, filter capacitor C ₂With the power circuit of transformer B composition, with relay J normally opened contact J ₁With the arc extinguishing capacitor C ₃The exhaust fan control circuit of forming, each circuit connects successively, with capacitor C ₁, resistance R ₂The outage delay circuit of forming is connected between electronic switching circuit and the control relay circuit electronic switching circuit triode BG ₁Colelctor electrode connect positive source, triode BG ₁Emission E point very, triode BG ₁Base stage be the normally-closed contact JK that an exit A of controller is connected on the water heater microswitch ₂On, another exit F of controller is the stationary contact JK that earth terminal is connected on the water heater microswitch ₀On, relay J normally opened contact J ₁The two ends of two ends tap exhaust fan K switch.

2, water heater as claimed in claim 1 and exhaust fan linkage controller, it is characterized in that: this controller is with capacitor C ₁, resistance R ₂With triode BG ₂Form outage delay circuit and control relay circuit; With D ₁-D ₄The bridge full wave rectifier, the capacitor C that constitute ₂Form power circuit, capacitor C with transformer B ₁Two ends are connected to respectively between E, the F, resistance R ₂Termination E point, another termination triode BG ₂Base stage, triode BG ₂Colelctor electrode be connected with relay J, its grounded emitter.

3, water heater as claimed in claim 1 and exhaust fan linkage controller is characterized in that: this controller is connected into equivalent trigger with integrated package 555 time base circuits and constitutes control relay circuit; Strong reset terminal and power end are connected to power supply V _DD, reset terminal R and set end S are connected on the E point of circuit, and discharge end Q passes through resistance R ₂Be connected to the E point, control end passes through capacitor C ₂Ground connection, the direct ground connection of earth terminal, output Q meets load-relay J.