CN2175377Y

CN2175377Y - Wire controlling device dor directly heating type gas water heater

Info

Publication number: CN2175377Y
Application number: CN 93242817
Authority: CN
Inventors: 陈永华
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-10-27
Filing date: 1993-10-27
Publication date: 1994-08-24
Anticipated expiration: 2003-10-27

Abstract

The utility model relates to a wired remote controlling device of a directly heating type gas water heater, which is composed of a control circuit and an actuating mechanism. The utility model is characterized in that a direct current motor which can positively and inversely rotate drives a gas valve to open and close through a speed variator. The input end of the direct current motor accepts inverse voltage or forward voltage connected by the K rise or the K drop of a touch switch, and the voltage is automatically cut when the gas valve obtains the limit positions of an upper stroke and a lower stoke. The utility model is simultaneously provided with a delaying switch circuit, a direct current signal which is output in delaying by the delaying switch circuit is supplied to a motor, and the delaying automatic shutdown is realized. The utility model can remotely control the temperature rise, the temperature drop, the automatic shutdown by setting time to the water heater.

Description

Wire controlling device dor directly heating type gas water heater

The utility model be a kind of by being used for of constituting of control circuit and executing agency to directly-heated type gas heater heat up, lower the temperature and the shut down device of control.

For fear of bath person's injures and deaths of suffocating take place, guarantee the safe in utilization of gas heater, the parties concerned have sent warning, gas heater must be installed in the ventilation beyond the bathroom.But, gas heater of the prior art, its switch control knob all is to be set directly on the water heater casing, this brings great inconvenience to use, in order to regulate water temperature, people have to come and go for several times between water heater installation place and bathroom, or by two people's compounding practices.In addition, water heater of the prior art does not have automatic shutdown unit, usually causes waste of fuel because shutdown is incured loss through delay in user's carelessness.

The purpose of this utility model is to avoid existing above-mentioned weak point in the prior art, provide a kind of gas heater wired remote control device, the feasible remote control that can heat up, lower the temperature water heater by this device very easily with the user of two Room, water heater office.The purpose of this utility model also is to set up time-delay shutdown function automatically for gas heater.

The purpose of this utility model is achieved through the following technical solutions.

The utility model is made of control circuit and executing agency.

Feature of the present utility model is:

Described executing agency adopts DC micromotor, the output shaft of this DC micromotor drives to the water heater air intake valve by speed changer, one cam is arranged on the valve runner, be fixed on that normally closed touch switch K on the casing goes up, K down and K always be positioned at cam place circumference, and be arranged in order at upper, the next and off-position of air intake valve aperture.

Described control circuit comprises that the cooling touch switch K that can respectively dc source E be inserted forward or backwards the direct current generator input falls and intensification touch switch K liter.Under the described normally closed touch switch K, K is last and K be connected in series in always, respectively by cooling touch switch K fall connection the forward electric power loop, rise in the reverse electrical source loop of connecting and general supply loop by intensification touch switch K.

Feature of the present utility model also is to be provided with the delay switch circuit that is made of charge/discharge unit and electronic switching tube; By the current signal of switching tube BG5 colelctor electrode time-delay output by normally-closed contact K fall-1 and K liter-1 for direct current generator provides off signal, and in described discharge loop, be connected in series and often open touch switch.

The utility model adopts miniature cocurrent electromotor to be used as power, and after speed change, under control circuit and time-delay shutdown circuit acting in conjunction, control water heater burnt gas valve realizes that water temperature is regulated and shutdown automatically.

The utlity model has following advantage:

1, convenience.This reality is done on the new device gas heater in the prior art, after the user lights little fire, can in the bathroom, directly be carried out water temperature control, be very easy to use the water heater beyond the bathroom by this device.

2, security.Owing to the utlity model has automatic shutdown function, not only avoided the user to incur loss through delay the waste of fuel that shutdown causes because of carelessness, and, in case in use, because of suffocating the people is lost consciousness, the utility model can be closed burnt gas valve in the time of setting, and can greatly alleviate extent of injury.

3, reliability.The utility model adopts touch switch and transistor switching circuit, its simple in structure, reliable operation.Because upper, the next travel switch is set, can guarantee that burnt gas valve is positioned at the aperture of setting, guarantee that little fire does not extinguish.

4, economy.The utility model element is easily purchased, makes simple, low, the little power consumption of cost.

5, be applicable to different trade mark gas heaters.This device is pressed the attachment device design, can directly be attached on any common water heater, does not change the original design of product basically.

Accompanying drawing 1 is the utility model structural representation.

Accompanying drawing 2 is the travel switch position view.

More than, in conjunction with the accompanying drawings the utility model is further described by embodiment.

Embodiment:

Referring to accompanying drawing 1, adopt 3500 rev/mins of miniature cocurrent electromotor 1, rotating speeds, 200 milliamperes of rated current, 1.2 watts of power, A and B are the input of motor 1, the output shaft of motor 1 drives to water heater air intake valve 3 by speed changer 2.Speed changer 2 is made up of multi-stage mechanical gear or worm and wormwheel gear, and gear ratio should be looked power, speed changer transmission efficiency and the water heater valve friction size of motor 1 and be adjusted, usually between 180:1 to 300:1.Between speed changer 2 output shafts and water heater air intake valve 3, adopt belt pulley 7 transmissions, this structure is function because speed change gear will skid, be convenient to hand burnt gas valve be placed any position, when not using this device, still available conventional method is regulated water temperature and switch burnt gas valve; In addition, the installation position of gear is equipped with bigger adjusting leeway, makes this device be applicable to different water heaters.

As shown in Figure 2, a cam 5 is arranged on valve runner 4, be fixed on that normally closed touch switch K on the casing 6 goes up, K down and K always be positioned at 5 on cam around, and be arranged in order with upper, the next and off-position of air intake valve 3 apertures.

As shown in Figure 1, control circuit comprises that the cooling touch switch K that can respectively dc source E be inserted forward or backwards direct current generator input A, B falls and intensification touch switch K liter.Under the normally closed touch switch K, K is last and K always be connected in series in respectively by cooling touch switch K fall connection the forward electric power loop, rise in the reverse electrical source loop of connecting and general supply loop by intensification touch switch K.Delay switch circuit is made of charge/discharge unit and electronic switching tube, and wherein, charge/discharge unit is made of potentiometer W, resistance R 1, R2 and capacitor C, in the discharge loop that is made of resistance R 1 and capacitor C, is connected in series and often opens touch switch K; Electronic switching tube by the current signal of triode BG5 colelctor electrode time-delay output by normally-closed contact K fall-1 and K liter-1 provide off signal for direct current generator 1.

When the water heater air intake valve by the closed position after the enable possition rotates an angle, cam is total with disengaging touch switch K, general supply K always connects, at this moment, multiple tube BG1, BG2 end because of the nearly OV of base newspaper current potential, BG3 is conducting and saturated thereupon, and BG4, BG5 all end, and motor is failure to actuate because of no input signal.This moment, circuit was in closed condition, entire circuit power consumption 2-3mA.

Continuous charging along with capacitor C, the BG1 base potential progressively rises, until conducting and saturated, at this moment, because the collector current of triode BG5 output rotates motor 1, and pass through speed changer 2 drive air intake valves 3 and rotate to closing direction, until the off-position of valve 3, it is total to touch total power switch K by cam 5, and it is opened, general supply is cut off, and realizes delay switching-off.Press K switch, the voltage on the capacitor C is by resistance R 1 discharge, and circuit gets final product reclocking.Adjust the resistance of W, R2 and the capacity of capacitor C, can adjust delay time.

During use, press cooling touch switch K arbitrarily and fall and intensification touch switch K liter, power supply E can insert input A, the B of motor 1 forward or backwards, and motor 1 forward or reverse drives gas valve 3 by speed changer 2 and closes or open; Trip switch, motor 1 just stops operating.

Because be provided with that upper and lower travel switch K goes up and K under, when burnt gas valve 3 turned to arbitrary extreme position, cam 5 hit under the last or K of travel switch K, make its disconnection, motor 1 electric power loop is cut off, and motor stops operating, thereby guarantees that burnt gas valve 3 is positioned at the setting stroke.

In addition, cooling touch switch K fall and intensification touch switch K respectively have in rising a pair of normally opened contact K fall-4 and K liter-4 with often open touch switch K and be connected in parallel.When pressing that temperature adjustment button K falls or K when rising, capacitor C discharge rapidly by resistance R 1, and multiple tube ends, and circuit is closed rapidly, and when guaranteeing the adjustment water temperature, time-delay shutdown circuit is in cut-off state, prevents short circuit phenomenon.

Red and green LED D1, D2 are set in the circuit, heat up or the cooling state in order to show respectively.

Claims

1, a kind of single flow gas heater wired remote control device is made of control circuit and executing agency, it is characterized in that:

A. described executing agency adopts DC micromotor (1), the output shaft of described DC micromotor (1) drives to water heater air intake valve (3) by speed changer (2), one cam (5) is arranged on valve runner (4), be fixed on that normally closed touch switch K on the casing (6) goes up, K down and K always be positioned at cam (5) place circumference, and be arranged in order at upper, the next and off-position of air intake valve (3) aperture;

B. described control circuit comprises that the cooling touch switch K that can respectively dc source E be inserted forward or backwards direct current generator input A, B falls and intensification touch switch K liter; Under the described normally closed touch switch K, K is last and K always is connected in series in respectively by cooling touch switch K and falls the forward electric power loop of connection, risen by intensification touch switch K in the reverse electrical source loop of connecting and general supply loop;

C., the delay switch circuit that is made of charge/discharge unit and electronic switching tube is set; By the current signal of switching tube BG5 collector time-delay output by normally-closed contact K fall-1 and K liter-1 provide off signal for direct current generator (1), and in the discharge loop of R1, C formation, be connected in series and often open touch switch K.

2, directly-heated type gas heater wired remote control device according to claim 1, it is characterized in that described cooling touch switch K falls and intensification touch switch K respectively have in rising a pair of normally opened contact K fall-4 and K liter-4 be connected in parallel with the described touch switch K that often opens.

3, single flow gas heater wired remote control device according to claim 1 and 2 is characterized in that adopting between described speed changer (2) output shaft and the water heater air intake valve (3) belt pulley (7) transmission.