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Water flow sensor

A technology of water flow sensor and water temperature, which is applied to instruments, electromagnetic flowmeters to detect fluid flow, measuring devices, etc., can solve problems such as unstable performance and complex structure of flow detection sensors, achieve simple structure, and solve hot water reflux The effect of burn-in and stable performance

Inactive Publication Date: 2015-12-23
汤明霞
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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

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Embodiment Construction

[0012] refer to figure 1 and figure 2 As shown, a water flow sensor of the present invention includes: a body 1, one end of which is provided with a water inlet 2 and the other end is provided with a water outlet 3, and a body accommodating cavity 5 is provided between the water inlet 2 and the water outlet 3, so that The accommodating cavity 5 of the body is provided with a turbine 6, and a multi-stage magnet is attached to the turbine 6, and the water flows through the turbine 6 to make the turbine 6 rotate axially to drive the rotation of the multi-stage magnet, and also includes a middle cover 8, which covers the body 1, the middle cover 8 is provided with a control circuit board accommodating cavity 9 to install the control circuit board 10, and the control circuit board 10 is connected with a Hall device capable of inducting a multi-stage magnetic field. The sealing connection between the middle cover 8 and the body 1 can be provided with an O-ring 7 to ensure that the...

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Abstract

The invention discloses a water flow sensor which comprises a body, one end of the body is provided with a water inlet, the other end of the body is provided with a water outlet, and a body containing cavity is formed between the water inlet and the water outlet. The water inlet is provided with a temperature probe. The body containing cavity is internally provided with turbines, and the turbines are additionally provided with multi-level magnets. Water flow flows through the turbines so that the turbines axially rotate so as to drive the multi-level magnets to rotate. The water flow sensor further comprises a middle cover, the middle cover covers the body, the middle cover is provided with a control circuit board containing cavity for containing a control circuit board, a Hall device capable of sensing a magnetic field of the multi-level magnets is connected into the control circuit board. The water flow sensor further comprises an upper cover covering the middle cover, and the upper cover, the middle cover and the body are fixedly connected. The water flow sensor is additionally provided with the turbines of the multi-level magnets, the magnetic field of the multi-level magnets is sensed through the Hall device, the Hall device gives out a pulse signal, the control circuit board receives the pulse signal and measures the water flow, and the sensor is simple in structure and stable in performance.

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): G01F1/58G01K1/14G01K13/02
Inventor 汤明霞
Owner 汤明霞
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