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Water flow sensor

A technology of water flow sensor and water temperature, which is applied in the direction of volume/mass flow generated by instruments, measuring devices, and mechanical effects. The effect of flow-burning machine and system measurement with high reliability

Inactive Publication Date: 2014-12-24
SHANGHAI NICHOLS ELECTRONICS TECH INC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In view of the above-mentioned shortcomings of the prior art, the object of the present invention is to provide a water flow sensor for solving the problems of complex structure and unstable performance of the flow detection sensor in the prior art

Method used

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Embodiment Construction

[0014] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention.

[0015] It should be noted that the structures, proportions, sizes, etc. shown in the drawings of this specification are only used to match the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not used to limit the scope of the present invention. Therefore, it has no technical substantive meaning, and any modification of structure, change of proportional relationship...

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Abstract

The invention discloses a water flow sensor. The water flow sensor comprises a body, a water inlet is designed at one end of the body, a water outlet is designed at the other end of the body, a body accommodating cavity is mounted between the water inlet and the water outlet, a temperature probe is installed at the position of the water inlet, a turbine is disposed in the body accommodating cavity, a multilevel magnet is attached to the turbine, water flows through the turbine so that the turbine can axially rotate to drive the multilevel magnet to rotate, the water flow sensor further comprises a middle cover and an upper cover, the middle cover covers the body, a control circuit board accommodating cavity is arranged on the middle cover so as to accommodate a control circuit board, a Hall device which can sense a magnetic field of the multilevel magnet is arranged in the control circuit board in a connecting mode, the upper cover is fit with the middle cover in a covering mode, and the upper cover, the middle cover and the body are fixedly connected. According to the water flow sensor, the multilevel magnet is attached to the turbine, the Hall device can sense the magnetic field of the multilevel magnet, the Hall device sends a pulse signal, the control circuit board receives the pulse signal and measures water flow, and the sensor is simple in structure and stable in performances.

Description

technical field [0001] The invention relates to a water flow sensor. Background technique [0002] The water flow sensors sold on the market now have flow detection and temperature detection functions, but the flow sensor has a complex structure and unstable performance; moreover, the temperature sensor detects the temperature of the air through a thick plastic, and the measured air The temperature is considered to be similar to the inlet water temperature, not the real inlet water temperature. At the same time, the change of the inlet water temperature is difficult to respond in a short period of time, resulting in errors in the detection of the inlet water temperature or errors in the outlet water temperature, resulting in the failure of the constant temperature machine. Constant temperature etc., even because of the phenomenon of backflow heating damage, bring great inconvenience and potential safety hazard to people's bathing like this. Contents of the invention [00...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F1/32G01F1/56G01K1/00
Inventor 陈金恩李文先倪斌
Owner SHANGHAI NICHOLS ELECTRONICS TECH INC
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