Double ground wire fixing device for electric water heater and electric water heater

Abstract

The invention discloses a double ground wire fixing device for an electric water heater and the electric water heater. The double ground wire fixing device comprises an insulated surface cover and two grounding pieces, the two grounding pieces are fixed on a wall body, the surface cover is arranged on the two grounding pieces in a covering manner and covers the two grounding pieces, and the surface cover is provided with through holes allowing ground wires to penetrate in; and in actual use, the two grounding pieces are connected with an electric water heater body and an external pipeline of the electric water heater through corresponding ground wires correspondingly, and then the electric water heater body and the external pipeline of the electric water heater are grounded at the same time. A connecting and fixing structure for two ground wires and a wall is designed, and therefore the interior of the water heater can be grounded, the external pipeline of the water heater can also be grounded, and the safety performance of a household electricity utilization environment is improved; and connection is convenient, and the structure is simple.

Description

technical field [0001] The invention relates to the technical field of electric water heaters, in particular to a double ground wire fixing device for electric water heaters and the electric water heater. Background technique [0002] The safety of household electrical appliances has always been the primary issue considered by consumers. As a special electrical product, electric water heaters are even more important. Once the electric water heater leaks electricity, or the easily accessible metal parts such as the inner tank and the outer shell are charged due to the electrification of the ground wire, it will directly endanger people's life safety. [0003] A considerable part of the products in the industry are "electricity-proof wall" or "electricity-isolated wall" type electric water heaters. The inlet and outlet pipes are equipped with insulating liners (this part is called inlet and outlet water insulation pipes). Large resistance, even if the inner tank or ground wir...

AI Technical Summary

Problems solved by technology

[0005] However, in some areas with low water pressure, users will also install booster pumps on waterways and use metal pipes to connect water heaters and water mixing valves. Once the insulation of the booster pump fails and leakage occurs, the leakage current will go directly to the human body after passing through the metal pipes and showers. Serious threat to user life safety

However, the existing water heater technical solutions only detect the internal leakage of the water heater and give a warning, and the water heater using the anti-electric wall technology, because the water circuit and the water heater inlet and outlet pipes are installed insulated, the ground wire of the electric water heater is charged. The monitoring system and the water circuit leakage voltage cannot be formed Effective circuit, unable to form an early warning of waterway electrification

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