CN201819406U - Outlet water cut-off sensor for water storage electric water heater - Google Patents

Abstract

The utility model relates to a water outlet power-off sensor for a water storage type electric water heater, comprising a housing, and is characterized in that it also comprises an impeller assembly with a magnet arranged in the housing and capable of being driven and rotated by the water flowing through, a Hall sensor fixed outside the housing and capable of sensing the rotation speed of the impeller assembly, and an electrical connection plug-in capable of outputting the signal generated by the Hall sensor. The utility model has the advantages that the power supply can be immediately disconnected when water flows, and the use is safe and reliable.

Description

Outlet water cut-off sensor for water storage electric water heater

technical field

The utility model relates to a water outlet power cut-off sensor for a water storage type electric water heater.

Background technique

At present, on the water storage type electric water heaters used in my country, no water outage sensor is installed, but a leakage protector is installed on the line. When in use, if the leakage protector fails, safety accidents will occur, the use is unsafe, and there are potential safety hazards.

Contents of the invention

The utility model overcomes the deficiencies of the prior art and provides a water outlet power cut-off sensor for a water storage type electric water heater that can be disconnected from the power supply immediately when there is water flowing, and is safe and reliable to use.

In order to achieve the above object, the utility model is achieved in the following way, which is a water outlet power failure sensor for a water storage type electric water heater, which includes a casing, and is characterized in that: it also includes a flow-through sensor arranged in the casing The water drives the rotating impeller assembly with magnets, the hall sensor fixed outside the housing can sense the speed of the impeller assembly, and the electrical connection plug-in that can output the signal generated by the hall sensor.

The impeller assembly includes a casing in a fixed casing, a rotatable impeller with a magnet fixed in the casing, and a sealing ring arranged between the casing and the casing.

The Hall sensor is fixed on the casing by screws.

The utility model has the advantages that it can be disconnected from the power supply immediately when there is water flowing, and the utility model is safe and reliable in use.

Description of drawings

Fig. 1 is the front view of the utility model;

Fig. 2 is A-A sectional view of Fig. 1;

FIG. 3 is an enlarged cross-sectional view taken along line B-B of FIG. 1 .

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail:

As shown in Figures 1 to 3, it is a water outlet power failure sensor for a water storage electric water heater, including

Housing 1, the utility model is characterized in that it also includes an impeller assembly with a magnet that can be pushed and rotated by the flowing water in the housing 1, and a Hall sensor 2 that can sense the speed of the impeller assembly and is fixed outside the housing. , the electrical connection plug-in 7 capable of outputting the signal generated by the Hall sensor. During installation, it can be connected to the cold water inlet of the storage type electric water heater, and can also be connected to the hot water outlet. When in use, water flows in from one end of the housing 1, and the inflowing water pushes the impeller assembly and makes it rotate. The Hall sensor 2 can sense the rotation of the impeller assembly and convert the signal into an electrical signal through the electrical connection plug-in 7. It is input to the external electrical control component, and the electrical control component controls the disconnection of the power supply after receiving the electrical signal, which is safe and reliable to use.

In this embodiment, the impeller assembly includes a sleeve 4 in the fixed housing 1, a rotatable impeller 6 with a magnet fixed in the sleeve and a sealing ring 5 arranged between the sleeve and the housing; The housing is threaded and fixed. When water flows in, the impeller 6 is driven to rotate by the inflowing water, and the Hall sensor 7 can sense the rotation of the impeller and generate an electrical signal, which is input to the external electrical control component through the electrical connection plug-in 7, and the electrical control component receives After receiving the electrical signal, the control power supply is disconnected. The Hall sensor 2 is fixed on the housing 1 by screws 3 .

Claims (3)

1. A water outlet power failure sensor for a water storage type electric water heater, including a housing, characterized in that it also includes an impeller assembly with a magnet that can be pushed and rotated by the flowing water in the housing (1) , a Hall sensor (2) that can sense the speed of the impeller assembly and is fixed outside the casing, and an electrical connector (7) that can output the signal generated by the Hall sensor. 2. The water outlet power failure sensor for water storage electric water heater according to claim 1, characterized in that: the impeller assembly includes a sleeve (4) fixed in the casing (1), fixed in the sleeve The rotatable impeller with magnet (6) and the sealing ring (5) arranged between the casing and the shell. 3. The water outlet power failure sensor for storage-type electric water heater according to claim 1, characterized in that: the Hall sensor (2) is fixed on the casing (1) by screws (3).

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