CN2266969Y

CN2266969Y - Full automatic electric water heater

Info

Publication number: CN2266969Y
Application number: CN 96240725
Authority: CN
Inventors: 刘启生
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-09-18
Filing date: 1996-09-18
Publication date: 1997-11-12
Anticipated expiration: 2006-09-18

Abstract

The utility model relates to a fully automatic electric water heater, comprising a tank body, an electric heating pipe, and a floating ball valve. The fully automatic electric water heater is characterized in that a fully automatic control circuit which is composed of a water level detecting circuit, a timing circuit, a sound circuit, and a temperature controller is arranged in a power supply loop of the electric heating pipe, and an electromagnetic valve is simultaneously arranged on a water source pipe. The whole working process of the fully automatic electric water heater can be automatically completed after temperature and time programs are preset; meanwhile, the problems of raw water infiltration and the empty burning of water break are solved.

Description

Automatic electric water boiler

The utility model relates to electric water boiler, more particularly, is the electric water boiler that a kind ofly includes casing, is positioned at the ball-cock assembly at the electrothermal tube of casing inner bottom part and its top.

With the electric water boiler of electrothermal tube, though simply,, make it on function, have following defective in the prior art because structure is limit as heating element heater:

1, automaticity is low.From supplying water, connect power supply, adding hot standby, after opening, water cuts off the electricity supply, and whole process is artificial control.

2, the ball-cock assembly that is provided with in the water tank can not stop after water level descends when taking boiling water, case in, the ball-cock assembly inflow of unboiled water through opening, so the unboiled water infiltration is arranged in the boiling water.

3, there is the empty burning problem of cutting off the water supply.

The purpose of this utility model is to avoid above-mentioned the deficiencies in the prior art part, and a kind of automatic electric water boiler is provided.Make the entire work process of boiler, after program presets, can finish automatically, solve simultaneously that unboiled water infiltrates and the empty problem of burning of cutting off the water supply.

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

The utility model comprises casing, is positioned at the electrothermal tube of casing inner bottom part and the ball-cock assembly at its top.

Architectural feature of the present utility model is:

A, in electrothermal tube RL electric power loop, the full-automatic control circuit that is made of water level detection circuit, timing circuit, sound circuit and temperature controller is set, the power transformer B1 of described timing circuit and water level detection circuit is elementary to be connected across on power supply end line A, the D; Its electrotimer normally opened contact J3-1 be connected across on described power supply end line A, the D after temperature controller power transformer B2 primary side A, C are connected in series; Level relay normally opened contact J2-1 one tunnel holds with being connected across the elementary A of temperature controller power transformer B2, C end, another road after temperature controller upper limit normally opened contact J1-2 and sound circuit power transformer B3 primary side are being got lines crossed and being connected across the elementary A of described temperature controller power transformer B2, C after temperature controller lower limit normally opened contact J1-1 and A.C. contactor CJ are connected in series, and A.C. contactor C J normally open contact is serially connected in the electrothermal tube RL electric power loop;

B, magnetic valve is set simultaneously on water source tube, serial connection A.C. contactor CJ normally open contact in the electric power loop of its electromagnetic valve coil, level relay normally-closed contact J2-2 is connected in parallel on this normally open contact.

Compared with the prior art, the utlity model has following advantage;

1, the utility model is esy to use, safe and reliable, can realize water inlet, heating, automatic heat preserving and open the back automatically with the Automatic Control of the whole process of audible alarm at water.

When 2, the water level detection circuit that is provided with simultaneously in the utility model can water level be lower than setting height in water tank, cut off electrothermal tube power automatically, stop heating, guarantee that electrothermal tube is not burnt.

3, the utility model is owing to be provided with magnetic valve simultaneously, makes in case water temperature reach that setting value, electrothermal tube stop heating and owing to take boiling water, water level decline in the case, when ball-cock assembly is opened, and magnetic valve is positioned at closed condition, has stoped entering of unboiled water.

4, the utility model is owing to be provided with timing circuit simultaneously, and it has substituted artificial connection electrothermal tube power, makes electric water boiler reach real full-automatic.

Fig. 1 is the utility model structural representation.

Fig. 2 is the utility model control circuit schematic diagram.

Fig. 3 is the utility model water level detection circuit, timing circuit schematic diagram.

Fig. 4 is the utility model sound circuit schematic diagram.

By the following examples, in conjunction with the accompanying drawings, the utility model is done a step describe.

Embodiment:

Referring to Fig. 1, casing 1 is made with stainless steel material.Be positioned at casing 1 inner bottom part electrothermal tube 2 is set, the top is provided with ball-cock assembly 3, on the casing 1 external water source pipe 5 magnetic valve 4 is set.As shown in Figure 1, be positioned at ball-cock assembly 3 delivery ports below be provided with buffer board 7, copper rod 6 and casing 1 metal sidewall on the designated water level height constitutes water-level probe in the water tank 1 by being arranged on, and drawn by lead H and G respectively, and copper rod 6 is fixed on buffer board 7 one sides by insulation sleeve 8.In addition, also be provided with temperature detection probe thermocouple 9 in the casing 1.

Referring to Fig. 2, in electrothermal tube RL electric power loop, the full-automatic control circuit that is made of water level detection circuit, timing circuit, sound circuit and temperature controller is set, the power transformer B1 of timing circuit and water level detection circuit is elementary to be connected across on power supply end line A, the D; Its electrotimer normally opened contact J3-1 be connected across on described power supply end line A, the D after temperature controller power transformer B2 primary side A, C are connected in series; Level relay normally opened contact J2-1 one tunnel holds with being connected across the elementary A of temperature controller power transformer B2, C end, another road after temperature controller upper limit normally opened contact J1-2 and sound circuit power transformer B3 primary side are being got lines crossed and being connected across the elementary A of described temperature controller power transformer B2, C after temperature controller lower limit normally opened contact J1-1 and A.C. contactor CJ are connected in series, and A.C. contactor C J normally open contact is serially connected in the electrothermal tube RL electric power loop.

Magnetic valve is set on water source tube as shown in Figure 1, 2 simultaneously, serial connection A.C. contactor CJ normally open contact in the electric power loop of its electromagnetic valve coil, level relay normally-closed contact J2-2 is connected in parallel on this normally open contact.

Each relay contact is closed conducting when satisfying separately condition among Fig. 2.Water level is lower than setting height, water level detecting relay contact J2-1 open circuit in the case as working as, and heating is opened a way, stopped to A.C. contactor CJ coil losing electricity, electrothermal tube RL power supply.The working time of setting when timer arrives, its electrotimer J3-1 closure, and the temperature controller power circuit is connected.

Referring to Fig. 3, water level detection circuit, employing is by being arranged on the water-level probe that the copper rod H on the designated water level height and casing 1 metal sidewall G constitute in the water tank 1, this water-level probe G, H are serially connected in trigger circuit triggers end 6 pin that are made of time base integrated package IC6, output 3 pin of described ic chip 6 connect power tube BG2 base stage, and electrotimer coil J2 is serially connected in power tube BG2 emitter-base bandgap grading.

Water level is lower than setting height in casing 1, G, H open circuit, and 2 pin of ic chip 2 are low level, BG2 ends, the J2 coil losing electricity, its contact J2-1 open circuit, electrothermal tube RL power supply open circuit is implemented protection to RL; Otherwise J2-1 adhesive conducting is connected power supply for electrothermal tube and is devoted oneself to work necessary condition is provided.

As shown in Figure 3, timing circuit adopts SC-C3B six to open six and closes clock controlling appliances, and its output  pin connects multiple tube BG3 base stage, at multiple tube BG4 collector series connection electrotimer J3 coil.In the set working time, the control voltage of clock controlling appliances  pin output 1.2V makes the BG4 conducting, the J3-1 closure.

In the present embodiment, when having a power failure, be not changed, in the electric power loop of clock controlling appliances, be arranged in parallel the charge power supply that constitutes by integrated package of pressure-stabilizing IC5 and rechargeable battery E for guaranteeing the clock controlling appliances set condition.

Referring to Fig. 4, sound circuit adopts audio manifold block IC3, in the present embodiment, in sound circuit, the delay circuit that setting is made of time base integrated package IC2 and peripheral cell R1, C3, the normally opened contact J4-1 of time-delay relay J4 is connected in loudspeaker current-limiting resistance R two ends in parallel.When sound circuit power transformer B3 switches on owing to the connection of the closure of water level detecting relay contact J2-1, temperature controller upper limit contact J1-2, loudspeaker are reported to the police with audio signal, after one section time-delay, voltage reaches 2/3rds of IC2 supply voltage on the capacitor C 3, IC2 triggers upset, its output 3 pin output levels are transferred to high by low, so J4 dead electricity, J4-1 open circuit, at this moment, current-limiting resistance R is added to power tube BG1 colelctor electrode, loudspeaker power reduction, volume are reduced, and chimes of doom transfers amount of bass to by the louder volume of the beginning of reporting to the police.

In the present embodiment, temperature controller adopts the temperature display regulator table of TDA series, this temperature controller is accepted the temperature detection signal of thermocouple, handle through its internal signal, by the relay contact output switching signal, comprise that when detected temperatures surpasses setting value its upper limit contact J1-2 connects, lower limit contact J1-1 disconnects, and when detected temperatures is lower than set temperature value, the above-mentioned opposite states in contact.

Claims

1, a kind of automatic electric water boiler comprises casing (1), is positioned at the electrothermal tube (2) of casing (1) inner bottom part and the ball-cock assembly (3) at its top, it is characterized in that:

A, in electrothermal tube (2) RL electric power loop, the full-automatic control circuit that setting is made of water level detection circuit, timing circuit, sound circuit and temperature controller, power transformer B 1 elementary being connected across on power supply end line A, the D of described timing circuit and water level detection circuit; Its electrotimer normally opened contact J3-1 be connected across on described power supply end line A, the D after temperature controller power transformer B2 primary side A, C are connected in series, level relay normally opened contact J2-1 one tunnel holds with being connected across the elementary A of temperature controller power transformer B2, C end, another road after temperature controller upper limit normally opened contact J1-2 and sound circuit power transformer B3 primary side are being got lines crossed and being connected across the elementary A of described temperature controller power transformer B2, C after temperature controller lower limit normally opened contact J1-1 and A.C. contactor CJ are connected in series, and A.C. contactor CJ normally open contact is serially connected in the electrothermal tube RL electric power loop;

B, magnetic valve (4) is set simultaneously on water source tube (5), serial connection A.C. contactor CJ normally open contact in the electric power loop of its electromagnetic valve coil, level relay normally-closed contact J2-2 is connected in parallel on this normally open contact.

2, automatic electric water boiler according to claim 1, it is characterized in that described water level detection circuit, employing is by being arranged on the water-level probe that copper rod (6) H on the interior designated water level height of water tank (1) and casing (1) metal sidewall G constitute, this water-level probe G, H are serially connected in the trigger circuit triggers end (6 pin) that is made of time base integrated package IC6, the output of described ic chip 6 (3 pin) connects power tube BG2 base stage, and electrotimer coil J2 is serially connected in power tube BG2 emitter-base bandgap grading.

3, automatic electric water boiler according to claim 1, it is characterized in that in described sound circuit, the delay circuit that setting is made of time base integrated package IC2 and peripheral cell R1, C3, the normally opened contact J 4-1 of time-delay relay J4 is connected in loudspeaker current-limiting resistance R two ends in parallel.

4, automatic electric water boiler according to claim 1 is characterized in that described timing circuit adopts SC-C3B six to open six and closes clock controlling appliances, and its output  pin connects multiple tube BG3 base stage, at multiple tube BG4 collector series connection electrotimer J3 coil.