CN2400745Y

CN2400745Y - Quick-heating safety electric water heater

Info

Publication number: CN2400745Y
Application number: CN 99257195
Authority: CN
Inventors: 袁文征
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-12-08
Filing date: 1999-12-08
Publication date: 2000-10-11
Anticipated expiration: 2009-12-08

Abstract

The utility model relates to a safe instant heating electric water heater. A heating device part is arranged between an insulating base and an insulating holder. A metal tube-shaped inner electrode, a metal tube-shaped middle electrode, and a metal tube-shaped outer electrode are sheathed coaxially at intervals. A fire wire of a power source is always electrically connected with the middle electrode by a positive electrode and negative electrode device of a full automatic regulating power source. A zero line of the power source is electrically connected with the inner electrode and the outer electrode. The potential of a fire wire of the middle electrode is in the strict shield of the zero potential of the inner electrode and the outer electrode. A water inlet and a water outlet always have zero potential. The additional arrangement of a grounding device ensures the personal safety in the course of the use of hot water. A current regulator controls the temperature of hot water which is needed in different areas in different seasons. The utility model has the advantages of high efficiency, no dry burning, and long service life.

Description

Safe instant electric water heater

The utility model relates to a kind of electric heating appliance, especially can be to the safe instant electric water heater of the continuous heating of cold water.

At present, electric heater majority with electrical heating water is to use the heating wire that is encapsulated in the metal tube as heating element heater, also have by two coaxial cylindrical electrodes of insulating base suit as heating element heater, the former cuts off the water supply and burns out electric heater easily, and the latter extremely directly is communicated with the fire of power supply and dangerous with water inlet or delivery port.

The purpose of this utility model provides a kind of Electrical Safety, and thermal efficiency height is not afraid of dry combustion method, the safe instant electric water heater that the life-span is long.

The purpose of this utility model is achieved in that in insulation crust, electrode in the tubular metal, middle electrode, external electrode is coaxial spaced from inside to outside, one end is sleeved on the insulator foot that intake tunnel runs through, the other end is sleeved on the insulation retainer, the other end of insulating base is the joint that links to each other with water supply pipe, full-automatic its input of adjustment power positive cathode device is set in the cavity of insulator foot to be electrically connected with power supply, electrode was electrically connected with live wire by metal spring leaf during output made, interior electrode, external electrode is electrically connected the back by metal spring leaf and is electrically connected with zero utmost point, interior electrode, the external electrode apopore is opened on the sidewall of close insulation retainer, middle electrode apopore is opened near on the sidewall of insulator foot, the delivery port inwall is fixed a becket, be electrically connected with earth connection, current regulator is set and an input lead is electrically connected in series, because the shielding action of metal pair electricity, electrode and external electrode in the live wire electromotive force of middle electrode can not jump, water inlet and delivery port are always keeping zero potential, owing to be provided with earthing or grounding means, guaranteed that more metal electrode has guaranteed its not dry combustion method again with the safety of the person in the hot water process, the intensity height, the characteristics that life-span is long.

Owing to adopt such scheme, when using hot water, the safety of the person, electric heater body has obtained the essence assurance, the spacing of the coaxial secured in parallel electrode in the two ends of electric water heater electrode is constant, the conversion of electric heating is evenly direct, does not produce the waste heat loss of electric heater body, so the electric conversion efficiency height, according to the temperature difference of different regions Various Seasonal cold water, current regulator is being regulated the size of electric current and is being controlled the suitable of hot water temperature.

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is the cross section structure figure of the utility model embodiment.

Fig. 2 is the A-A cutaway view of Fig. 1.

Fig. 3 is circuit theory diagrams of the present utility model.

1. full-automatic adjust in power positive cathode device 2. leads 3. leads 4. insulator foots 5. metal spring leafs 6. metal spring leafs 7. metal spring leafs 8. in electrode apopore 9. external electrodes 10. in the electrode 11. electrode apopore 13. external electrode apopores 14. insulation crusts 15. insulation retainers 16. beckets 17. delivery ports 18. earth connections 19. water inlets 20. input leads 21. input leads 22. current regulators 23. external the end of a thread 24. external the end of a thread 25. live wire joints 26. zero line joints in the electrodes 12. among the figure

In Fig. 1 and Fig. 2, central authorities have an end of the insulator foot (4) that runs through with water inlet (19) to be threaded with water supply pipe, the other end and the interior electrode (11) of taking water hole (12) out of, take the middle electrode (10) in water hole (8) out of, take an end coaxial spaced suit of the external electrode (9) of water hole (13) out of, interior electrode (11), middle electrode (10), one end coaxial spaced suit of the other end of external electrode (9) and insulation retainer (15), be electrically connected with earth connection (18) near fixing metal ring (16) on the inwall of delivery port (17) at insulation crust (14), metal spring leaf (5), metal spring leaf (6), metal spring leaf (7) is fixing with insulator foot (4), one end of insulation crust (14) and insulator foot (4) thread seal are fixed, and the inwall of the other end contacts with insulation retainer (15).

In Fig. 3, full-automatic external the end of a thread (24) of adjusting power positive cathode device (1) is electrically connected with input lead (21), external the end of a thread (23) is electrically connected with an end of current regulator (22), live wire joint (25) is electrically connected with lead (3), metal spring leaf (7), middle electrode (10), zero line joint (26) is electrically connected with lead (2), metal spring leaf (5), metal spring leaf (6), interior electrode (11), external electrode (9), and the other end of current regulator (22) is electrically connected with input lead (20).

Claims

1, a kind of safe instant electric water heater, the input lead of input (20), input lead (21) connects power supply, the other end is electrically connected with external the end of a thread of external the end of a thread (23) (24) of full-automatic adjustment power positive cathode device (1) respectively, water inlet (19) end of insulator foot (4) is threaded with water supply pipe, it is characterized in that: in insulation crust, electrode (11) in the tubular metal, middle electrode (10), external electrode (9) is coaxial spaced from inside to outside, one end is sleeved on the insulator foot (4) of intake tunnel perforation, the other end is sleeved on the insulation retainer (15), the other end of insulator foot (4) is the joint that links to each other with water supply pipe, full-automatic adjustment power positive cathode device (1) is set in the cavity of insulator foot (4), its input is electrically connected with power supply, the live wire joint (25) of output is electrically connected by metal spring leaf (7) with middle electrode (10), interior electrode (11), external electrode (9) is by metal spring leaf (6), metal spring leaf (5) is electrically connected the back and is electrically connected with zero line joint (26), the apopore (12) of interior electrode (11), the apopore (13) of external electrode (9) is opened on the sidewall of close insulation retainer (15), the apopore (8) of middle electrode (10) is opened near on the sidewall of insulator foot (4), the inwall of delivery port (17) is fixed a becket (16) and is electrically connected with earth connection (18), and current regulator (22) is electrically connected in series with input lead (20).