CN2213310Y - Safety and high effective water heater mounting on water tap - Google Patents

Abstract

The utility model relates to a safety and high effective water heater arranged on the tap of water tap, which belongs to an electric water heater and is composed of an insulating base seat 1, two power supply poles 2 and 3 arranged on the base seat, two protective poles 4 and 5 and a rubber joint. A water resistance between the power supply poles 2 and 3 is used as an energy consumptive resistance to heat the water flowing across the pole. The protective poles 4 and 5 adopt the ground protected connecting system of a connecting electric net and carry out the double measures for repeatedly connecting the ground, which ensures that the electric site of the site of a water inlet and outlet is zero. Thereby, the utility model has the advantages that use is safe, heating is fast, structure and installation are easy, durability is high, etc.

Description

Safety and high effective water heater mounting on water tap

A kind of safety, high efficiency heater that is installed on the water tap belongs to electric water heater.

Form with electrical heating water is varied, gets up can be divided into two big classes but conclude, and a kind of is indirect, adopts heater elements such as resistance wire, electrothermal tube to add hot water by modes such as radiation, convection current, conduction, exists defectives such as the low and life-span weak point of efficient.Another kind is that two power electrodes are directly placed heated water, utilize the water resistance of two interpolars directly to heat as energy consumption resistance, though a kind of defective of mode of heating before having overcome, but because of domestic water (non-pure water) is the conductor with certain resistance actually, so its security performance reduces greatly.This series products of domestic existing all adopts zero line ground connection on running water pipe at present, and user in use phase (L), zero (N) line must not be inverted.Side will not make the short-circuit protection action power dump, will make current potential rising in the import and export place water if fail to cut off the electricity supply effectively, and this is quite dangerous.For this reason, limited applying of this kind high-efficiency water heating utensil.

The purpose of this utility model provides safety guarantee to utilizing water resistance to make the direct-fired electric water heater of energy consumption resistance exactly, make its phase line of power (L) and zero (N) can be inverted use arbitrarily, even user not by specification uses or power supply occurs under other abnormal conditions, all can provide safety guarantee reliably.

The utility model is by insulator foot 1, power supply telegram 2,3, and the water-in and water-out protection utmost point 4,5, plastics end shield 6 and rubber connector 7 are formed.Four electrodes all adopt " cup " shape structure, stick with glue the agent suit and are fixed on the base 1.The uniform some meshes in the protection utmost point 4,5 bottom surfaces, the metal connecting line of two interpolars gives and being embedded in the insulator foot 1.The power supply utmost point 2 bottom surface central authorities open an inlet opening 9, uniform four apopores 10 of the power supply utmost point 3 sidewall upper, and plastics end shield 6 sticks with glue agent with base 1 and electrode 2,3,5 is closed the uniform some water outlet meshes 12 in end shield bottom surface.Base 1 upper end is made the teeth shape and is connected with an end of rubber connector 7, and the other end of connector 7 is connected with water tap, and carries out multiple grounding at this by lead 14.

The utility model compared with prior art, great advantage is to have improved security reliability.Do not have metallicity with the two power supply utmost points and is connected owing to have additional two protection utmost points, the employing of the protection utmost point is connected with the electrical network earthed system and carries out the dual measure of multiple grounding.Thereby ensured that the water that all can guarantee water-in and water-out place under the situation that two power lines can be replaced arbitrarily is zero potential.Even under the situation of zero-power line fracture, still can guarantee user's safety.Secondly, owing to have additional the rubber connector, therefore this water heater can be connected easily with the tap of φ 15, φ 20.

The utility model Figure of description is a cutaway view, and base 1 is the ABS injection mo(u)lding with end shield 6, and both fix with resin glue the connection place.The power supply utmost point 2,3 and the protection utmost point 4,5 are the corrosion resistant plate punch forming, are fixed on the base 1 with resin glue.Under identical water quality situation, the size of the gap of the power supply utmost point 2,3 and surface area decision power.The copper sheet 13 that connects the two protection utmost points is embedded in the base 1.The lead 15 that connects L, N, E is holed on base 1 when being assembling and is drawn from 2,3,5 respectively.Multiple grounding line 13 is drawn from 4.

Claims (2)

1, a kind of safety, high efficiency heater that is installed on the water tap is fixed on the insulator foot by two power supply utmost points and two protection utmost points.It is characterized in that the two power supply utmost points, can connect with (L) mutually, zero (N) line of power supply arbitrarily.The two protection utmost points place the import and export place of water respectively, implement metallicity and connect, and be connected with the electric network protection earthed system to reach to be connected with the running water pipe shell by lead by supply socket ground hole (E) and implement multiple grounding.

2, safety according to claim 1, high efficiency heater is characterized in that an end of base closely is connected with water tap by the rubber connector.