Water storage type electric water heater with automatic power off for preventing electric leakage
A technology of automatic power-off and electric water heaters, applied in fluid heaters, lighting and heating equipment, etc., can solve problems such as circuit leakage, influence product promotion, and large differences in water conductivity, and achieve the effect of ensuring safe use
Inactive Publication Date: 2013-11-06
SUPERMAN ZHONGSHAN ELECTRIC APPLIANCES CO LTD
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Problems solved by technology
[0003] The above two additional safety measures still have limitations: the anti-electric wall safety measures, due to the different water quality in different places, the conductivity of water varies greatly; and the leakage protection measures, many old buildings themselves may have unreliable grounding wires in the user circuits, and the circuit Defects such as leakage affect product promotion
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[0014] The present invention will be further described below in conjunction with the accompanying drawings.
[0015] Such as figure 1 As shown, a water storage electric water heater with automatic power-off and anti-leakage includes an inner tank 1, a heating pipe, a temperature controller, an insulation layer 2 and a controller 3, and the controller 3 includes a single-chip microcomputer and a relay; There is a cold water inlet pipe 1B and a hot water outlet pipe 1A on the tank 1; it also includes a throttle plate 4 with a water guide hole and a signal generating device;
[0016] The signal generating device includes a high-pressure plate 5, a drive tube 6, a low-pressure plate 7, a reset tube 8, a diaphragm 9, a pressure plate 10, a spring 11, a magnet 12 and a reed switch 13;
[0017] The high pressure plate 5 and the low pressure plate 7 are fastened together, the diaphragm 9 is arranged between the high and low pressure plates 5 and 7, and the high and low pressure plate...
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The invention relates to a water storage type electric water heater with automatic power off for preventing electric leakage. The water storage type electric water heater comprises an inner container and a controller. The controller comprises a single chip microcomputer and a relay. The inner container is provided with a cold water inlet pipe and a hot water outlet pipe. The water storage type electric water heater also comprises a throttle plate with water guide holes and a signal generating device. The signal generating device comprises a high pressure disc, a drive pipe, a low pressure disc, a reset pipe, a diaphragm, a pressure plate, a spring, a magnet and a reed switch. With the adoption of the structure, when water flows in the cold water inlet pipe, the water enters a space between the high pressure disc and the diaphragm through the drive pipe, and the diaphragm is shifted, therefore, the magnet is moved, the spring is compressed, the magnet is matched with the reed switch, and a signal is outputted to the controller by the reed switch so that a connecting wire between a grounding wire of a power wire and an outer casing of the water heater and connecting wires between a fire wire and a zero wire of the power wire and an electrical heated pipe are cut off to stop heating so as to ensure use safety of a user.
Description
technical field [0001] The invention relates to an electric water heater, in particular to a storage type electric water heater. Background technique [0002] At present, in the existing technology, the electric shock protection safety device of the water storage type electric water heater, in addition to the basic protection measures of the water heater and the grounding protection, other additional safety measures mainly include: the safety measures of the electric wall, before the hot water is discharged from the electric water heater , the water flow first passes through the insulated slender channel, using the poor conductivity of water to reduce the leakage voltage at the outlet of the hot water, thereby protecting personal safety; leakage protection measures, the ground wire, live wire and neutral wire of the power supply Once leakage is found, the power supply will be cut off immediately to ensure the safety of users. [0003] The above two additional safety measure...
Claims
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IPC IPC(8): F24H9/20
Inventor 罗子健
Owner SUPERMAN ZHONGSHAN ELECTRIC APPLIANCES CO LTD