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Durable float-type water level sensor and production method thereof

A water level sensor and float type technology, applied in the field of sensing elements, can solve the problems of inconvenient installation and maintenance, high defect rate, etc., and achieve the effect of improving work efficiency, improving product quality and reputation, and improving adaptability and convenience.

Pending Publication Date: 2021-03-26
江门市永拓动力机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a durable float type water level sensor, which can not only realize the alarm of accumulated water and facilitate the discharge of accumulated water, but also with a simple and reasonable structure, 1. Solve the problems of product installation and maintenance Inconvenient; 2. Solve the problem of high defect rate in the process of product testing and use, improve the company's product quality and reputation, and bring greater benefits to the company

Method used

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  • Durable float-type water level sensor and production method thereof
  • Durable float-type water level sensor and production method thereof
  • Durable float-type water level sensor and production method thereof

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Experimental program
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Effect test

Embodiment 1

[0022] A durable float type water level sensor described in Embodiment 1 of the present invention, such as Figure 1-3 As shown, it includes: a plastic integrally formed sensor main housing 1, the sensor main housing is composed of three hollow column tubes, upper, middle and lower, which are internally connected to each other, wherein the bottom of the lower column tube is sealed, and its interior is hollow Part is the fixed groove 2 of the integrated plate of the reed switch for the sensor; the outer diameter of the middle column tube is larger than that of the lower column tube, and the outer wall is provided with an external connecting thread 3 that is matched with the installation screw hole of the automobile filter; the outer wall of the upper column tube is horizontal The cross-section is equi-octagonal design, which is convenient to tighten the sensor with a wrench; a sensor sealing ring 12 is provided at the junction of the upper column tube and the outer wall of the m...

Embodiment 2

[0029] The present invention also relates to the production method of the above-mentioned sensor. The inner diameter of the inner cavity of the reed switch integrated board fixing groove of the sensor is 4.1 mm, and the height of the inner cavity of the reed switch integrated board fixing groove is 30 mm, which includes the following steps:

[0030] 1. Use a high-pressure blower to blow the inner cavity of the reed switch integrated board fixing groove for 1-2 seconds to achieve early cleaning;

[0031] 2. Use a needle tube filled with silicon grease to inject silicon grease into the inner cavity of the fixed groove of the reed switch integrated board leading out the wire harness. The weight of the silicone grease is 0.2g, and then insert the reed switch so that the reed switch reaches The bottom of the inner cavity of the reed switch integrated board fixing groove; the height of the silicone grease in the inner cavity of the reed switch integrated board fixing groove is 26mm; ...

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Abstract

The invention discloses a durable float-type water level sensor which comprises a sensor main shell composed of an upper hollow column pipe, a middle hollow column pipe and a lower hollow column pipe,a water level float fixed with a magnetic ring, and a reed switch integrated plate arranged in the lower column pipe; a silicone grease layer is filled between the inner wall of the lower column pipeand the reed switch integrated plate; an epoxy resin body cavity filled with cured epoxy resin bodies is arranged in the middle column pipe, and signals of the reed switch integrated plate are led out by a wire harness. The design of the reed switch integrated plate is ingeniously adopted, the reed switch is placed in the clamping groove of the circuit board, and silicone grease is poured into the position of the whole reed switch integrated plate so as to comprehensively protect the glass tube of the reed switch. The working benefit is improved, and the adaptability and convenience of the product are improved. Inconvenience in installation and maintenance of the product is solved; the problem that the reject ratio is high in the product test process and the use process is solved, the product quality and public praise of companies are improved, and great benefits are brought to enterprises.

Description

technical field [0001] The invention relates to a sensing element, in particular to a durable float type water level sensor. Background technique [0002] The traditional fuel primary filter is usually mainly composed of filter housing, filter element, filter seat and manual fuel delivery pump. The lower end of the filter element is provided with a part that can deposit and filter oil, impurities and water, and this part is provided with a drain screw plug for Operators regularly discharge stagnant water, dirt, etc. according to their own experience. Because of human factors, it is inevitable that the operator forgets to clean the filter or cleans the filter prematurely due to the worry that the filter is full of water. Because the existence of water will damage the fuel injectors working under the state of high precision and high atomization. In view of the fact that the traditional fuel primary filter can no longer meet the operating requirements of modern engines, the o...

Claims

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Application Information

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IPC IPC(8): G01F23/64
CPCG01F23/64
Inventor 童庆喜
Owner 江门市永拓动力机械有限公司