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Electricity-leakage-proof water heater

A water heater and anti-leakage technology, which is applied to water heaters, fluid heaters, lighting and heating equipment, etc., can solve the problems of increased cost, shortened service life, and high failure rate of water heaters, and achieves improved safety, convenient installation, and structural simplified effect

Active Publication Date: 2008-10-01
宁波帅康热水器有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, the user does not know that the water heater has leaked electricity, and will not take follow-up remedial measures.
After the above situation occurs, if the power supply is not cut off in time and the user is notified, the fault cannot be eliminated in time, and the potential safety hazard still exists, which is unsafe for the user.
At the same time, it will also cause a high failure rate of the water heater and shorten the service life.
[0004] If only an additional leakage protection switch and alarm device are installed on the basis of the existing "anti-electric wall" water heater, it will not only increase the cost, but also complicate the structure and make installation and maintenance inconvenient

Method used

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Examples

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Embodiment Construction

[0030] Below in conjunction with accompanying drawing, the present invention is described in further detail:

[0031] Such as Figure 1 to Figure 1 2 shows a leak-proof electric water heater, which includes a shell 3, an inner tank 1 located in the outer shell 3 and insulated from the outer shell 3, a grounding wire connected to the inner tank 1, and an electric heating tube installed in the inner tank 1 , and a leakage protection device 4 electrically connected to the electric heating tube; also includes a damping isolation signal acquisition device 2, the damping isolation signal acquisition device 2 includes a hollow insulating tube 21, the insulating tube 21 communicates with the inner tank 1, and the damping isolation signal acquisition device 2 The acquisition device 2 also includes a signal acquisition part, the signal acquisition part is connected to the signal input end of the leakage protection device 4, and the signal acquisition part has a contact surface S, and th...

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Abstract

The invention relates to an anti-creeping water heater, comprising a casing, an inner bag, an earth wire, an electric heating pipe, a damping isolation signal device and an anti-creeping protective device; the damping isolation signal device comprises a hollow insulating pipe communicated with the inner bag, further comprises a signal collecting piece having a contact surface that contacts the water flowing from the insulting pipe to the inner bag or the water phase flowing from the inner bag to the insulating pipe, collecting a level signal and outputting it to the anti-creeping protective device; the anti-creeping protective device collects a standard level signal of the water in the inner bag and compares it with the level signal for the difference. When the signal difference exceeds the safety voltage 24V, the power supply is cut off. The invention matches the anti-creeping protective device by the level signal generated by the reducing the voltage for the insulating pipe to process anti-creeping protection for the water heater; the length of the insulating pipe is far less than that in the ''anti-creeping wall'' and the structure is artful without taking space and convenient to disassemble.

Description

technical field [0001] The invention relates to an electric water heater, in particular to a leakage-proof electric water heater. Background technique [0002] Existing electric water heater has generally adopted " anti-electricity wall " technology aspect anti-leakage protection. This technology is to install a large "resistance" between the human body and the water. Once leakage occurs, this "resistance" can bear most of the voltage drop, so that the voltage drop borne by the human body is very small. This "resistance" is realized by installing an insulating pipe whose length is 53 times the square length of the inner hole radius on the inlet and outlet pipes. [0003] The disclosed patent No. of China Patent Office is: 01135300.7, and the name is called: the invention patent of electric water heater of electric shock prevention. Its disclosed technical scheme is to install insulating pipes at the water inlet pipe and the water outlet pipe. In order to increase the resi...

Claims

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Application Information

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IPC IPC(8): F24H1/20F24H9/20
Inventor 邹国营邹茂祥张慧宝洪银灿
Owner 宁波帅康热水器有限公司
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