CN2615568Y

CN2615568Y - Electromagnetic water heater

Info

Publication number: CN2615568Y
Application number: CN 03216609
Authority: CN
Inventors: 张永光; 程君
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-04-28
Filing date: 2003-04-28
Publication date: 2004-05-12
Anticipated expiration: 2013-04-28

Abstract

A novel electromagnetic water heater comprises an electromagnetic heating transformer, a plurality of sensors, a shell, metal pipes, ferrite magnetic stripes, pipe frames, heat conducting medium channels, magnet coils, coil frames, reflux pipes, a heat absorber for surplus heat, a pump body, a propeller, radiating fins, a motor, large power transistors IGBT, a circuit board, a segregation barrier, a LCD, function arrangement switches and the like. The utility model has the advantages of scientificity and high efficiency of the electromagnetic heating transformer, usage of the heat absorber for surplus heat, isolation between the water and the electrical bath, thereby not only guaranteeing the excellent work capability, but also improving heating efficiency, and the interference to the space and electric appliance caused by electro-magnetism, making the circuit employ intelligent and automatic characteristic. With the application of high power transistor IGBT to serve as drive element, the reactive power of the circuit is reduced lower. All in all, the application of the low reactive power solves the interference to the space and electric appliance caused by electro-magnetism, and after probation, the heating efficiency by electromagnetic heating could be improved more than one time in the same frequency.

Description

Electromagnet water heater

Field under the technology:

The utility model is household electrical appliance, particularly be the electromagnet water heater that the mode of utilizing electric energy to convert magnetic energy to heats.

Background technology:

The utility model is patent " multifunction water-heating shower " patent of invention number at me: 97121006.3 and utility model patent number: improve on 97244827.6 the basis work out the 4th generation electromagnet water heater.Though above patent practicality is fine, also safe and reliable, it is not high enough to exist the thermal efficiency, does not realize intellectuality and automation, shortcoming that no power consumption is big or the like, and do not solve the interference of electromagnetism to space and electrical equipment.

Summary of the invention:

The purpose of this utility model provides a kind of intellectuality and automaticity height, and idle power consumption is very little, has solved the interference of electromagnetism to space and electrical equipment, and Instant heating type electromagnet water heater esy to use, safe and reliable.

The purpose of this utility model be achieved in that specify as follows:

A kind of electromagnet water heater by the electromagnetism in shell, the shell add thermoconverter, circuit board is formed; It is tubular that electromagnetism adds thermoconverter, and outermost layer is the water pipe layer that forms around the shape metallic water pipe, and its inner core is the heat-conducting medium return duct; Arranging toward the tube core successively by outside metallic water pipe layer; Insulation isolated water cannon born rack-layer, heat-conducting medium channel layer, enamel-covered wire layer, electromagnetic heating coil casing play, ferrite layer, its tube core are the heat-conducting medium return duct.

Also establish waste heat heat dump, the pump housing in the above-mentioned shell, motor, waste heat heat dump are installed in is close to the top that electromagnetism adds thermoconverter; The pump housing, motor are located at the circuit board top; The division board that is connected as a single entity with shell adds thermoconverter with electromagnetism and separates in the both sides inner chamber that sealing does not communicate with circuit board; It is interior around drawing shell again as water inlet behind at least 1 circle that metallic water pipe upper end wherein enters the waste heat heat dump, and it is water outlet device that shell is drawn in the metallic water pipe lower end.

Above-mentioned waste heat heat dump waste heat heat dump shell is that insulating materials is made, include heat-conducting medium, its inner chamber successively with heat-conducting medium passage, return duct, pump return duct, the pump housing, pump the hole, head and the tail polyphones communicates, pump the import that the hole promptly is the waste heat heat dump, form the closed circulation passage, fan, the radiator on the high power valve on the motor all are arranged in pump housing heat-conducting medium.

Above-mentioned electromagnetism adds in the thermoconverter and to be connected to one by fixed screw between insulation isolated water cannon born frame and the electromagnetic heating coil skeleton and to seal support body, and electromagnetic heating coil is enclosed in wherein.

Above-mentioned enamel-covered wire layer is meant the enamel-covered wire layer that the thick enamel-covered wire coiling that is plied to by at least 3 fine enamelled wires forms; Above-mentioned ferrite layer is meant, is made up of around distributing at least 3 thin ferrite bars.

Advantage of the present utility model clearly, the structure that electromagnetism adds thermoconverter has science and high efficiency; The waste heat heat dump is recycling with the heat of complete machine heater element, has promptly guaranteed the optimum working performance of electricity, magnetic cell in the machine, recycles again and has improved the thermal efficiency; And water pipe and electrical part sealing isolation; The science design of adopting electromagnetism to add thermoconverter and circuit has solved the interference of electromagnetism to space and electrical equipment; Adopt the affected master element of one chip microcomputer in the circuit, make circuit intellectuality, automation; Use modern high power valve IGBT in the circuit and make driving element, make very little that the useless power consumption of circuit becomes; In a word, the utility model behind improvement structure and the circuit has been realized intellectuality and automation, and is no low in energy consumption, and solved the interference of electromagnetism to space and electrical equipment, and it is reliable to be perfectly safe; On probation through model machine, the thermal efficiency that heats at electromagnetism under the same frequency improves more than 1 times, and its product has more the processability of mass production.

Description of drawings:

Fig. 1 looks schematic diagram for the electromagnet water heater master

Fig. 2 looks cut-away view for the electromagnet water heater master

Fig. 3 overlooks cut-away view for electromagnet water heater

Fig. 4 looks up cut-away view for electromagnet water heater

Fig. 5 is an electromagnet water heater circuit board main control circuit part schematic diagram

Fig. 6 is electromagnet water heater circuit board power drive and power unit schematic diagram

In the accompanying drawing; 1. cold water inlet, 2. delivery port, 3. fixed screw, 4. upper limit sensor, 5. holding wire, 6. temperature sensor, 7. fixed screw, 8. holding wire, 9. fixed screw, 10. shell, hole under 11. media, 12. metallic water pipe, 13. ferrite magnetic stripes, 14. water pipe skeletons, 15. the heat-conducting medium passage, 16. solenoids, 17. coil racks, 18. return duct, hole on 19. media, 20. reflux goes up the hole, 21. coil pipe, 22. waste heat heat dumps, 23. pump the hole, 24. the pump housing, 25. screws, 26. fin, 27. fixed screw, 28. motors, 29. high power valve IGBT, 30. fixed screw, 31. circuit boards, 32. power lines, 33. power transformer, 34. attaching plugs, 35. pump return ducts, 36. division board, 37. fixed screws, 38. LCD panels, 39. function setting switch, 40. cooling switches, 41. intensification switches, 42. power switches, 43. trade mark position, 44. name of an article positions, 45. leads.

As shown in Figure 1, shell (10) header board double as control panel, power switch (42), cooling switch (40), intensification switch (41), function setting switch (39), attaching plug (34), LCD panel (38) are installed, and are left trade mark position (43) and name of an article position (44);

Go into as can be known by Fig. 2, electromagnetism adds the inventive point that thermoconverter is this patent, it is the drum of a concentric sandwich construction, its outermost one deck is the pipe with spiral pipe layer, the drum layer that turns to by one at least 1 meter long metallic water pipe (12), be close to the inside of metallic water pipe (12) layer and paste the water pipe skeleton (14) that this is one deck insulation isolation mutually, water pipe skeleton (14) the inside is heat-conducting medium passage (15), heat-conducting medium passage (15) the inside is one deck electromagnetic heating coil (16), inside the electromagnetic heating coil (16) is the electromagnetic heating coil skeleton (17) that one deck insulation is isolated, coil rack (17) the inside is that one deck is evenly distributed on the ferrite layer that its border is formed by at least 3 ferrite magnetic stripes (13), and the ferrite layer the inside is the heat-conducting medium return duct (18) that is positioned at the cylinder inner core.

As seen from Figure 2, the division board (36) that connects as one with shell (10) makes two big main parts machineries and the whole isolating seals of electrical equipment two parts in shell (10) chamber contingency reduce and takes place; In shell (10) chamber: division board (36) left side is established electromagnetism and is added thermoconverter, electromagnetism adds thermoconverter and is fixed on the shell (10) by fixed screw (3), its top be sticked the waste heat heat dump pump housing (24) part by motor (28), screw (25), high power valve IGBT (29), fin (26), pump return duct (35), pump hole (23) and form; High power valve IGBT (29) and fin (26); Be provided with in division board (36) right-side cavity, be fixed on being used on the shell (10) by fixed screw (27) and control the circuit board (31) that electromagnetism adds thermoconverter and control power drive part; The pump housing (24) and the motor (28) that is fixed on the shell (10) established in circuit board (31) top; In circuit board (31) below, power transformer (33) is fixed on the shell (10) by fixed screw (37); Water pipe skeleton (14) is fixed on the shell (10) by fixed screw (7).

Can find out that also it is delivery port (2) that shell (10) is drawn in metallic water pipe (12) lower end, shell (10) behind the coiling at least 2 circle title coil pipes (21), is drawn as water inlet (1) in its upper end in waste heat heat dump (22).

Among Fig. 2, the water heater upper limit sensor (4) that is sticked in the middle part of metallic water pipe (12) outer wall, delivery port temperature sensor (6) is sticked outside delivery port (2); High power valve is fixing by fixed screw (30).

Drum layer that above-mentioned metallic water pipe (12) turns to and electromagnetic heating coil (16) should be mounted in the structure of two different aspects on the same axis; Electromagnetic heating coil (16) is had mercy on into the rich again electromagnetic heating coil of making (16) of a thick enamel-covered wire for best by at least 2 thin enamel-covered wires; Be L3, L4 in the circuit diagram around 2 groups of electromagnetic heating coil (16) on same skeleton, for good, two groups of electromagnetic heating coil (16) are to be operated in the different time, i.e. during IGBT1 conducting, and the duty that IGBT2 disconnects.

Also can find out with fixed screw (7) and will insulate after isolated water cannon born frame (14) and electromagnetic heating coil skeleton (17) connect as one, electromagnetic heating coil (16) is sealed, and the useless heat energy that produces in the electromagnetic heating coil (16) is absorbed by heat-conducting medium passage (15);

Above-mentioned division board (36), insulation isolated water cannon born frame (14) and electromagnetic heating coil skeleton (17) all are not provided with the purpose that yet can realize the electromagnetism heating pipe, but dangerous, in case accident occurs, the casualty accident that leaks electricity will occur.

Waste heat heat dump (22) shell is made with non-conducting material; In insulation isolated water cannon born frame (14) layer is the heat-conducting medium passage (15) that leaves at least 2 millimeters spans, vias inner walls is electromagnetic heating coil (16), electromagnetic heating coil (16) is with the rich again coil of making of several thin thick enamel-covered wires of enamel-covered wire coiled, electromagnetic heating coil (16) the inside is the electromagnetic heating coil skeleton of being made by insulating materials (17), electromagnetic heating coil skeleton (17) the inside is the magnetic conduction ferrite layer that one deck is distributed and forms along the border by at least 3 thin ferrite magnetic stripes (13), and magnetic conduction ferrite layer the inside promptly is heat-conducting medium return duct (18); Require rich drum layer of making of above-mentioned metallic water pipe (12) and electromagnetic heating coil (16) to be mounted on two aspects on the same axis, form a seal between insulation isolated water cannon born frame (14) and the coil rack (17), electromagnetic heating coil (16) is enclosed in the inside.

By finding out among Fig. 2,3,4 that waste heat heat dump (22) is installed in the top that electromagnetism adds thermoconverter, add thermoconverter with electromagnetism and closely link to each other, metallic water pipe (12) is drawn shell (10) in the waste heat heat dump (22) behind several circles be water inlet (1); Waste heat heat dump (22) shell is made with insulating materials; Waste heat heat dump (22) is communicated with heat-conducting medium passage (15) by hole on the medium (19), heat-conducting medium passage (15) is communicated with return duct (18) by hole under the medium (11), return duct (18) is communicated with pump return duct (35) by hole (20) on it, pump return duct (35) is communicated with the pump housing (24), the pump housing (24) with pump hole (23) and be communicated with, pumping hole (23) promptly is the import of waste heat heat dump (22), forms the closed circulation passage; Heat-conducting medium passage (15) in the passage is taken away the heat absorption of electromagnetic heating coil (16), the heat that is arranged in the fin (26) of the pump housing (24) is taken away absorption by the heat-conducting medium of the pump housing (24), heat-conducting medium circulates in closed circuit under the effect of screw (25), in waste heat heat dump (22), heat passed to the water in the water pipe (12), promptly reduced the heat of electronic components such as electromagnetic heating coil (16) and high-power sliding IGBT, guarantee electrical equipment performance maximum effect, realized heat recovery again.

Heating such as electromagnetic heating coil and the IGBT high power valve original paper also way of available air cooling solves, but its waste heat can not be utilized.

The tubular structure that metallic water pipe (12) is made comprises ellipse garden tubular, many ribs hollow column etc.

Circuit drives is selected IGBT voltage driven type high power valve power driving tube for use, if select for use the power tube of other types also can finish power drive, but all the power tube of IGBT of no use is effective.

This circuit does not provide the computer applications control program, and hardware and structure division only are provided, and needs design and installation control driver if manufacture.

By Fig. 5,6 as can be known, on the electromagnetism heating control circuit plate (31) by forming with the lower part:

(1) PIC single-chip microcomputer (IC7) main control circuit part

(2) high limit of water heater temperature and power tube temperature overheating testing circuit

(3) water heater function is provided with on-off circuit

(4) voice warning circuit

(5) miniature oil pump power driving circuit

(6) water heater water outlet water temperature testing circuit

(7) clock circuit

(8) IGBT power tube over-voltage detection circuit

(9) photoelectricity is isolated IGBT power drive and over-current detection circuit

(10) electromagnetism heating and IGBT power circuit

(11) pulse direct current rectifying and wave-filtering anti-clutter circuit

(12) direct current regulation circuit

(13) dot lcd display module and display board

In above-mentioned (1), PIC single-chip microcomputer (IC7) main control circuit part, it carries out after data handle the signal of detected temperatures, voltage, current data, judges, analyzes, handles, controls the duty of water heater; In above-mentioned (2), high limit of water heater temperature and power tube temperature overheating testing circuit, the high limit of the water temperature detection signal that the electromagnetism that detects water heater by RK3 adds thermoconverter offers single-chip microcomputer IC7, if the IC7 single-chip microcomputer has measured the high limited signal of water temperature, single-chip microcomputer will be controlled high power valve IGBT1,2 and not work.Rk1, RK2 are the detector units of installing on the IGBT power tube.When the big merit pipe of IGBT temperature is too high, it will provide a power tube excess temperature signal to IC7 the 7th pin, and the IC7 single-chip microcomputer also will stop the work of IGBT high power valve; In above-mentioned (3), water heater function is provided with on-off circuit by resistance R 20, R21, R23, R24, K switch 1, K2, K3, K4, IC9-B (A/D) D/A parallel operation is formed a water heater power setting circuit, it has switching on and shutting down, water temperature is provided with, function setting etc. are carried out the person's of setting order by analog signal of Ic7 single-chip microcomputer is provided after Ic9-B (A/D) digital-to-analogue conversion; In above-mentioned (4), voice warning circuit, after the start of Ic7 single-chip microcomputer entered duty, whether work such as temperature and circuit were normal, and it all can provide voice suggestion, and Ic7 the 9th pin is exported a string cue driving HA wafer and is sent prompt tone; In above-mentioned (5), miniature oil pump drive circuit connects motor m1 by R26 transistor Q1, diode D5 and forms, and provides control signal to make motor rotation by IC7 single-chip microcomputer octal; In above-mentioned (6), water heater water outlet water temperature testing circuit is to provide a simulation water temperature voltage to offer Ic7 single-chip microcomputer first pin behind A/D piece IC9-A D/A switch by the Ic8 temperature measurement module, single-chip microcomputer is controlled IGBT1,2 power tube frequency change according to the variation of signal, is its lifting that reaches water temperature; In above-mentioned (7), clock circuit is made up of IC6-D comparator resistance R 2, R3, R4R5, capacitor C 3 etc., its pulsating direct current after with the IC1 rectification module offers pulsating direct current signal of Ic6-D input after resistance R 2, R3, R4, R5, capacitor C 3 filtering, after IC6-D adjusts, supply with a string pulsating direct current signal of Ic7 single-chip microcomputer the tenth pin, IGBT power driving circuit IC4IC5 is provided after the frequency conversion of IC7 single-chip microcomputer, makes high power valve IGBT and Voltage pulsating direct-current supply work synchronous; In above-mentioned (8), IGBT power tube over-voltage detection circuit is by the over-voltage detection circuit of resistance R 6, R16, R12, R13, the paired IGBT1 of Ic6-B computing comparator bank.When occurring being higher than operating voltage on the R6 resistance, a signal of telecommunication that is higher than negative input end will appear in the input anode at Ic6-B computing comparator, the output of Ic6-B will have a signal of telecommunication output, make the output of Ic6-A also have a mistake piezoelectric signal to offer the Ic7 single-chip microcomputer, when single-chip microcomputer Ic7 receives the overvoltage signal, will implement soft shutoff IGBT power driving circuit Ic4Ic5; In above-mentioned (9), photoelectricity is isolated IGBT high power valve drive circuit, and it is by IC4, Ic5 capacitor C 4, C6, C5, C7, compositions such as diode D1, D2; IC4 drives high power valve IGBT1, and Ic5 drives high power valve IGBT2's; C4, D1, C5, D3, Ic4 the 4th, 5,6 pin are formed, and detect the current circuit of crossing of IGBT1 high power valve, and C6, D2, C7, D4, IC5 the 4th, 5,6 form the current circuit of crossing that detects IGBT2;

In above-mentioned (10), electromagnetism heating and IGBT power circuit inductance coil L3, IGBT1 voltage-stabiliser tube R8W1 form one group of electromagnetic heating circuit, and inductance coil L4, IGBT2 voltage-stabiliser tube W2 resistance R 9 are formed another group electromagnetic heating circuit; In above-mentioned (11), pulsating direct current rectifying and wave-filtering anti-clutter circuit, by capacitor C 1 inductance L 1 piezo-resistance TR1 rectification module Ic1, inductance coil L2, capacitor C 2 grades are formed pulsating direct current circuit and filtering anti-clutter circuit; In above-mentioned (12), direct current regulation circuit is by power transformer BT1, rectification module Ic2, and compositions such as regulator block Ic3 are control circuit, drive circuit, oil pump five equilibrium be you can well imagine for constant voltage dc source; In above-mentioned (13), dot lcd display module and display board.Display module and display board are because of being to adopt dot lcd display module and display board, and it can show different literals such as numeral, Chinese character, English.

The specific embodiment:

Water heater in use, after attaching plug inserted supply socket, open power switch, treat to start shooting behind no any fault in the water heater automatic inspection circuit, it can be automatically set at 35 ℃ of water temperatures with the leaving water temperature of water heater, if you need water temperature to raise or reduce to regulate to heat up or the cooling switch, after temperature sets, can open the tap flushing of cold water.This water heater is after being provided with water temperature and finishing, and the water that flows out water heater will be constant, if stop using, can be by machine open/close, and water heater can quit work.

The utility model colleague technical staff can implement.

Claims

1, a kind of electromagnet water heater, by the electromagnetism in shell, the shell add thermoconverter, circuit board is formed, it is characterized in that: it is tubular that electromagnetism adds thermoconverter, outermost layer is the water pipe layer that forms around the shape metallic water pipe, its inner core is the heat-conducting medium return duct; Being provided with insulation isolated water cannon born rack-layer, heat-conducting medium channel layer, enamel-covered wire layer, electromagnetic heating coil casing play, ferrite layer, tube core by the metallic water pipe layer of outside successively toward a tube core is the heat-conducting medium return duct.

2, require 1 described electromagnet water heater according to aforesaid right, it is characterized in that: also establish waste heat heat dump, the pump housing in the shell, the waste heat heat dump is installed in is close to the top that electromagnetism adds thermoconverter; The pump housing is located at the circuit board top; The division board that is connected as a single entity with shell adds thermoconverter with electromagnetism and separates in the both sides inner chamber that sealing does not communicate with circuit board two parts; Metallic water pipe upper end wherein enters in the waste heat heat dump around drawing shell again as water inlet behind at least 1 circle; It is the water pipe delivery port that shell is drawn in the water pipe lower end.

3, require 1 described electromagnet water heater according to aforesaid right, it is characterized in that: above-mentioned electromagnetism adds in the thermoconverter and to be connected to one by fixed screw between insulation isolated water cannon born frame and the electromagnetic heating coil skeleton and to seal support body, and electromagnetic heating coil is enclosed in wherein.

4, want 2 described electromagnet water heaters according to right, it is characterized in that: the shell of waste heat heat dump is made by insulating materials, its inner chamber falling heat-transfer medium, waste heat heat dump inner chamber successively with heat-conducting medium passage, oil return pipe, pump return duct, the pump housing, pump the hole and be communicated with, pump the import that the hole promptly is the waste heat heat dump, form the closed circulation passage, fin, the screw on the motor of high power valve all are arranged in the pump housing.

5, electromagnet water heater according to claim 1 is characterized in that: electromagnetism heating control circuit plate (31) is made up of following 13 parts: 1, PIC single-chip microcomputer (IC7) main control circuit part; 2, high limit of water heater temperature and power tube temperature overheating testing circuit; 3, water heater function is provided with on-off circuit; 4, voice warning circuit; 5, miniature oil pump power driving circuit; 6, water heater water outlet water temperature testing circuit; 7, clock circuit; 8, IGBT power tube over-voltage detection circuit; 9, photoelectricity is isolated IGBT power drive and over-current detection circuit; 10, electromagnetism heating and IGBT power circuit; 11, pulse direct current rectifying and wave-filtering anti-clutter circuit; 12, direct current regulation circuit; 13, old formula LCD MODULE and display board.

6, electromagnet water heater according to claim 6 is characterized in that; (2-0) high power valve IGBT over-voltage detection circuit is by comparator Ic6-a in the testing circuit part, Ic6-b, and Ic6-c resistance R 6, R7, R11, R12, R13, R14, R15, R16, R17 connect PIC single-chip microcomputer Ic7 and form; High limit of (2-1) water heater temperature and high power valve IGBT temperature overheating testing circuit are by temperature sensor RK1RK2RK3 in the test section, and resistance R 25 connects PIC single-chip microcomputer Ic7 and forms.

7, electromagnet water heater according to claim 6 is characterized in that: clock circuit (3-0) connects PIC single-chip microcomputer Ic7 by resistance R 2R3R4R5 capacitor C 3 comparator Ic6-D and forms.

8, electromagnet water heater according to claim 6, it is characterized in that: photoelectricity isolation high-power pipe IGBT drives and overcurrent detects control circuit (7-0, be by integration module Ic4, Ic5 capacitor C 4, C5, C6, C7 7-1), diode D1, D2, D3, D4 form; High-power circuit (7-0) is by IGBT1, IGBT2, resistance R 8, R9, and Zener diode W1, W2 connect electromagnetic heating coil L3, L4 and form.