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Water flow sensor

A technology of water flow sensor and valve body, which is applied in the field of sensors, can solve problems such as troublesome installation of water flow sensors, and achieve the effect of simple structure and convenient installation

Inactive Publication Date: 2015-09-09
吕杨
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  • Summary
  • Abstract
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  • Application Information

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Problems solved by technology

[0004] In order to overcome the deficiencies of the background technology, the present invention provides a water flow sensor to solve the troublesome installation problem of the existing water flow sensor

Method used

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Embodiment Construction

[0013] Embodiments of the present invention will be further described below in conjunction with accompanying drawings:

[0014] As shown in the figure, a water flow sensor includes a valve body 1, a bracket 2, and a cover plate 3. The valve body 1 is provided with a rotating shaft 4, and the rotating shaft 4 is covered with a turbine 5, and one end of the turbine 5 is provided with a permanent magnet 6. ; The cover plate 3 is fixedly connected with the support 2 through screws 9, the support 2 is provided with a cavity 23, the cavity 23 is provided with a Hall sensor 7 and a resistor 8, and the cavity 23 is located in the permanent magnet On both sides of the magnet 6; the position corresponding to the permanent magnet 6 on the bracket 2 is provided with a limiting boss 22, one end of the rotating shaft 4 is fixed on the valve body, and the other end is arranged between the limiting bosses 22, directly using the bracket 2 to limit the permanent magnet 6 without using a pressur...

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Abstract

The invention relates to a water flow sensor. The water flow sensor mainly solves the problem that existing water flow sensors are inconvenient to mount. According to the water flow sensor, the position on a support, which corresponds to a permanent magnet, is provided with limiting bosses; one end of a rotating shaft is fixed onto a valve body, and the other end of the rotating shaft is arranged among the limiting bosses. The water flow sensor has the advantages that, by directly limiting the permanent magnet via the limiting bosses on the support, a pressing ring can be saved, thereby being simple in structure and convenient to mount.

Description

technical field [0001] The invention relates to a sensor, in particular to a water flow sensor. Background technique [0002] The water flow sensor mainly consists of a valve body, a water flow rotor assembly, a steady flow assembly and a Hall element. It is installed at the inlet end of the water heater to measure the inlet water flow. As water flows through the rotor assembly, the magnetic rotor turns at a rate that varies linearly with flow. The Hall element outputs the corresponding pulse signal and feeds it back to the controller. The controller judges the size of the water flow and adjusts the current of the proportional valve to control the amount of gas through the proportional valve to avoid warm summer and cool east during the use of the gas water heater. The phenomenon. The water flow sensor fundamentally solves the shortcomings of the differential pressure water-gas linkage valve, which has a higher pneumatic water pressure than the flap-type water valve, whic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F15/18
Inventor 吕杨
Owner 吕杨
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