CN2542993Y

CN2542993Y - Full-automatic controller of solar water heater

Info

Publication number: CN2542993Y
Application number: CN01273114U
Authority: CN
Inventors: 蔡可健
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-12-27
Filing date: 2001-12-27
Publication date: 2003-04-02
Anticipated expiration: 2011-12-27

Abstract

The utility model discloses an automatic controller of a solar water heater. A circuit diagram is arranged in a shell of the controller and comprises a display circuit for controlling and setting water level and temperature, a circuit of using water and a circuit of supplementing water, which are interlocked, as well as an electric heating circuit. When the period of using water comes every day, if water temperature reaches or passes the set temperature, the heating circuit does not conduct; if water temperature does not reach the set temperature, the heating circuit conducts and increases to the set temperature and then automatically powers off. During the whole period of using water, the circuit of supplementing water is locked. When the period of using water ends, the circuit of using water is locked and the circuit of supplementing water conducts, supplements water automatically and then stops supplementing water automatically through a water level sensor when water is supplemented to the set water level. The controller, with low cost and energy consumption, is used for solar water heaters to realize the functions of the display of controlling and setting water level and temperature, the function of automatic water supply and cut-off in different periods as well as the function of electric heating compensation.

Description

Full automatic control equipment for solar water heater

Technical field

The utility model belongs to electronic product, is specifically related to the structure of full automatic control equipment for solar water heater.

Background technology

Existing a variety of with the matching used intelligence instrument of solar water heater, show controller as water-level and water-temperature, automatic loading water, antipriming, compensation electric heater or the like, there is following shortcoming in actual use in these instruments: 1, automatic loading water must wait and could realize after water exhausts in the water tank, if last water is few in the water tank, can only relies on and manually go up water; 2, at sunlight deficiency or sleety weather, can only adopt manual Electric heating, heat time heating time is long, influences instant water.

Summary of the invention

The purpose of this utility model is: design a kind of full automatic control equipment for solar water heater, remedy some shortcoming of existing Intelligent Instrument, real full-automatic water level, water temperature control and the setting demonstration that realizes solar water heater, water and sealing in the full automatic segmentation, full automatic electrical heating.

The purpose of this utility model is achieved in that in the shell of this controller circuit diagram is set that described circuit diagram includes water-level and water-temperature control and sets display circuit, water, moisturizing interlock circuit and heater circuit.

Constitute heating control circuit by single-chip microcomputer IC2, triode VT1 and relay K A1; Constitute the heating display circuit by self-control dry-reed relay IA and light emitting diode D5; Normally-closed contact KA1-2 by single-chip microcomputer IC2 and relay K A1 constitutes water moisturizing interlock circuit; Constitute the moisturizing control circuit by level sensor, triode VT2, VT3 and relay K A2; Constitute the water level settings circuit by level sensor and water level selector switch SK; Show that by water level knob SB and light emitting diode D13, D14, D15 constitute water level display circuit; Constitute time period setting and control circuit by 4EC8700 single-chip microcomputer IC2.

When to the using water period set every day, the heater circuit auto-unlocking is not if water temperature is shone design temperature, temperature sensitive switch is a closure state, the heater circuit conducting, and have energising to show, be raised to the i.e. outage automatically of set water temperature, whole using water period, the moisturizing circuit is by locked; After using water period finished, heater circuit was locked, the moisturizing circuit turn-on, and automatic water supplement when mending designated water level, stops moisturizing automatically by level sensor.

Description of drawings

Fig. 1 is the utility model controller profile schematic diagram

Fig. 2 is the utility model circuit diagram

The specific embodiment

As shown in Figure 2, T is that transformer, IC1 are that integrated package of pressure-stabilizing, KA1 are 12 volts of two contact DC relays, and KA2 is that 12 volts single contact DC relays, SK are that water level selector switch, SB are that water level shows that knob, TH are that thermostat relay, RR are electric heater, IA for making dry-reed relay (the 4-6 circle on the tongue tube of the only strand insulation lead with 1.38 gets final product) by oneself.

The formation of circuit and connect as follows: the 2 pin output by integrated package of pressure-stabilizing IC1 provides 12-volt dc power supply; C4 is a filter capacitor, the output of its anodal termination IC1, negative pole end ground connection; VT1 is the heating and the control triode that supplies water, its grounded emitter, and its utmost point connects the output of single-chip microcomputer IC2, actuating coil one end of collector connecting relay KA1,12 volts of power supplys of another termination of the actuating coil of KA1 through R2; D6 is a fly-wheel diode, 12 volts of power supplys of its negative pole termination, and positive pole connects the colelctor electrode of VT1; The positive pole of light emitting diode D7 connects 12 volts of power supplys through R3, and the colelctor electrode of negative pole termination VT1 is formed the water supply indicating circuit; Elements such as triode VT2 and VT3 constitute the moisturizing control circuit; The grounded emitter of VT2, base stage are through R7, through water level selector switch SK, connect 12 volts of power supplys through level sensor again; Control the saturated of VT2 and end by level sensor; 1,2,3 ends of water level selector switch SK are three terminals of the high, medium and low water level of water receiving level sensor respectively, and 0 end and R7 join; C6 is a filter capacitor, the tie point of a termination R7 and water level selector switch, other end ground connection; The colelctor electrode of VT2 is received on 12 volts of power supplys of the normally closed interlock KA1-2 control that is subjected to KA1 through R8; The grounded emitter of VT3, base stage connects the VT2 colelctor electrode through R9, actuating coil one end of the collector connecting relay KA2 of VT3, the other end of the actuating coil of relay K A2 is received 12 volts of power supplys of the normally closed interlock KA1-2 control that is subjected to KA1, D10 is a fly-wheel diode, its negative pole end is received 12 volts of power supplys of the normally closed interlock control that is subjected to KV1, and positive pole connects the colelctor electrode of VT3; Luminous tube D11 positive pole is received 12 volts of power supplys of the normally closed interlock control that is subjected to KV1 through R10, the colelctor electrode of negative pole termination VT3 is formed the moisturizing indicating circuit, and the positive pole of luminous tube D5 connects 12 volts of power supplys through R1, the tongue tube ground connection of negative pole end in IA constitutes power indicating circuit; The positive pole of luminous tube D9 connects 12 volts of power supplys through R6, and negative pole end ground connection constitutes the electrical heating indicating circuit; R4 and R5 are composed in series divider, provide 5 volts of dc sources through diode D8 for single-chip microcomputer IC2; R5 one end ground connection, another termination R4; 12 volts of power supplys of another termination of R4; The anodal termination R4 of D8 and the point of contact of R5, negative pole end connects the positive source of single-chip microcomputer IC2; C5 is a filter capacitor, the negative pole of anodal termination D8, negative pole end ground connection; Light emitting diode D12 negative pole end string R11, D13 negative pole end string R12, D14 negative pole end string R13 shows that through water level the normally open contact of push switch SB is by ground then; The positive terminal of D12, D13, D14 is three terminals of the high, medium and low water level of water receiving level sensor respectively; 12 volts of power supplys of the 4th wiring termination of level sensor constitute water level display circuit, entering water electromagnetic valve EV with connect 220 volts of AC powers, formation moisturizing circuit after the normally open contact of relay K A2 is connected.

Set and the control time section by 4EC8700 single-chip microcomputer IC2.During to using water period, as 5:00-8:20 in morning, noon 11:00-13:00, evening 17:00-23:00, it exports high level, triode VT1 saturation conduction, KA1 gets electric, thus the KA1-1 closure, and heater circuit is controlled by thermostat relay only, KA1-2 disconnects simultaneously, and the moisturizing control circuit is locked; When finishing to using water period, the single-chip microcomputer output low level, VT1 ends, the KA1 outage, KA1-1 disconnects, and heater circuit is locked, while KA1-2 closure, the work of moisturizing control circuit, triode VT3 is saturated, and KA2 gets electric, normally opened contact KA2 closure, moisturizing circuit turn-on; When moisturizing arrived designated water level, triode VT2 was through the level sensor biasing and saturated, thereby VT3 ends, the KA2 outage, and the moisturizing circuit is closed.

The utlity model has following advantage: 1, cost is low, function is complete, has the water level demonstration and sets automatic temperature, the automatic functions such as segmentation moisturizing of mending; 2, power saving, to the preceding electrical heating compensation that just is necessary of water, section does not have the electrical heating compensation At All Other Times; 3, segmentation moisturizing, the constant water level of maintenance water tank fully absorbs sunlight, rationally utilizes luminous energy; 4,, thoroughly solved home-use hot water problem at sunlight deficiency and sleety weather; 5, water level settings and demonstration are arranged, in short winter at sunshine, solar water heater water tank can keep half water tank water even still less; 6 controllers also can be used for controlling breadboard hot water storgae and the homemade simple and easy electric heat water tank of adding.

Claims

1, full automatic control equipment for solar water heater is characterized in that: in the shell of this controller circuit diagram is set, described circuit diagram includes water level, water temperature control and sets display circuit, water, moisturizing interlock circuit and electrical heating compensating circuit; Constitute heating control circuit by single-chip microcomputer IC2, triode VT1 and relay K A1; Constitute the heating display circuit by self-control dry-reed relay IA and light emitting diode D5; Normally-closed contact KA1-2 by single-chip microcomputer IC2 and relay K A1 constitutes water moisturizing interlock circuit; Constitute the moisturizing control circuit by level sensor, triode VT2, VT3 and relay K A2; Constitute the water level settings circuit by level sensor and water level selector switch SK; Show that by water level knob SB and light emitting diode D13, D14, D15 constitute water level display circuit; Constitute time period setting and control circuit by 4EC8700 single-chip microcomputer IC2.

2, full automatic control equipment for solar water heater according to claim 1 is characterized in that: the formation of circuit and connect as follows: the 2 pin output by integrated package of pressure-stabilizing IC1 provides 12-volt dc power supply; C4 is a filter capacitor, the output of its anodal termination IC1, negative pole end ground connection; VT1 is the heating and the control triode that supplies water, its grounded emitter, and its utmost point connects the output of single-chip microcomputer IC2, actuating coil one end of collector connecting relay KA1,12 volts of power supplys of another termination of the actuating coil of KA1 through R2; D6 is a fly-wheel diode, 12 volts of power supplys of its negative pole termination, and positive pole connects the colelctor electrode of VT1; The positive pole of light emitting diode D7 connects 12 volts of power supplys through R3, and the colelctor electrode of negative pole termination VT1 is formed the water supply indicating circuit; Elements such as triode VT2 and VT3 constitute the moisturizing control circuit; The grounded emitter of VT2, base stage are through R7, through water level selector switch SK, connect 12 volts of power supplys through level sensor again; Control the saturated of VT2 and end by level sensor; 1,2,3 ends of water level selector switch SK are three terminals of the high, medium and low water level of water receiving level sensor respectively, and 0 end and R7 join; C6 is a filter capacitor, the tie point of a termination R7 and water level selector switch, other end ground connection; The colelctor electrode of VT2 is received on 12 volts of power supplys of the normally closed interlock KA1-2 control that is subjected to KA1 through R8; The grounded emitter of VT3, base stage connects the VT2 colelctor electrode through R9, actuating coil one end of the collector connecting relay KA2 of VT3, the other end of the actuating coil of relay K A2 is received 12 volts of power supplys of the normally closed interlock KA1-2 control that is subjected to KA1, D10 is a fly-wheel diode, its negative pole end is received 12 volts of power supplys of the normally closed interlock control that is subjected to KV1, and positive pole connects the colelctor electrode of VT3; Luminous tube D11 positive pole is received 12 volts of power supplys of the normally closed interlock control that is subjected to KV1 through R10, the colelctor electrode of negative pole termination VT3 is formed the moisturizing indicating circuit, and the positive pole of luminous tube D5 connects 12 volts of power supplys through R1, the tongue tube ground connection of negative pole end in IA constitutes power indicating circuit; The positive pole of luminous tube D9 connects 12 volts of power supplys through R6, and negative pole end ground connection constitutes the electrical heating indicating circuit; R4 and R5 are composed in series divider, provide 5 volts of dc sources through diode D8 for single-chip microcomputer IC2; R5 one end ground connection, another termination R4; 12 volts of power supplys of another termination of R4; The anodal termination R4 of D8 and the point of contact of R5, negative pole end connects the positive source of single-chip microcomputer IC2; C5 is a filter capacitor, the negative pole of anodal termination D8, negative pole end ground connection; Light emitting diode D12 negative pole end string R11, D13 negative pole end string R12, D14 negative pole end string R13 shows that through water level the normally open contact of push switch SB is by ground then; The positive terminal of D12, D13, D14 is three terminals of the high, medium and low water level of water receiving level sensor respectively; 12 volts of power supplys of the 4th wiring termination of level sensor constitute water level display circuit, entering water electromagnetic valve EV with connect 220 volts of AC powers, formation moisturizing circuit after the normally open contact of relay K A2 is connected.