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Waterproof protection circuit and electronic equipment

A technology for protecting circuits and switching circuits, applied in the electronic field, can solve problems such as damage to internal components and achieve the effect of avoiding damage

Inactive Publication Date: 2019-08-13
SHENZHEN WATER WORLD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of this application is to provide a waterproof protection circuit and electronic equipment, aiming to solve the technical problem that the internal components are easily damaged after the mobile electronic equipment enters the water in the prior art

Method used

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  • Waterproof protection circuit and electronic equipment
  • Waterproof protection circuit and electronic equipment
  • Waterproof protection circuit and electronic equipment

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Experimental program
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Embodiment Construction

[0024] It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.

[0025] refer to figure 1 , the embodiment of the present application proposes a waterproof protection circuit, which is applied to an electronic device, and the electronic device may be a mobile electronic device such as a mobile phone, a tablet computer, a digital camera, MP3, MP4, etc., which is not specifically limited. The waterproof protection circuit includes a battery cell 1, a battery protection circuit 3, a first switch circuit 4, a second switch circuit 2, a water inflow detection circuit 5, a positive output terminal P+ and a negative output terminal P-, and the battery protection circuit 3 has a positive power supply The input terminal, the negative input terminal of the power supply, the voltage control terminal and the voltage output terminal, the positive input terminal of the power...

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PUM

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Abstract

The invention discloses a waterproof protection circuit and electronic equipment. The waterproof protection circuit comprises a battery cell, a battery protection circuit, a first switch circuit, a second switch circuit, a water immersion detection circuit and a negative electrode output end. The battery protection circuit is provided with a power supply positive input end, a power supply negativeinput end, a voltage control end and a voltage output end, wherein the power supply positive input end is connected with the positive electrode of the cell, the power supply negative input end is connected with the negative electrode of the cell, the voltage control end is connected with the output end of the second switch circuit, and the voltage output end is connected with the negative outputend; the control end of the first switch circuit is connected with the water immersion detection circuit, the input end is connected with the positive electrode of the cell and the output end is connected with the control end of the second switch circuit; the input end of the second switch circuit is connected with the negative electrode of the cell. The waterproof protection circuit can prevent internal components from being damaged due to the fact that water enters the electronic equipment.

Description

technical field [0001] This application relates to the field of electronic technology, in particular to a waterproof protection circuit and electronic equipment. Background technique [0002] Current mobile electronic devices (such as smart phones, etc.) usually need to use rechargeable batteries and circuit boards. If the device enters water, the components on the circuit board will be easily damaged and cannot be restored when the device is charged, causing user property, etc. aspects of the loss. Although the casing of mobile electronic devices can be designed to be waterproof, due to the existence of interfaces and structural gaps, it is difficult to achieve high-level waterproof sealing. Once the device accidentally falls into the water, it will still cause trouble to users. [0003] In the prior art, some devices adopt the scheme of automatically shutting down after detecting water ingress, but because the voltage of the battery is still applied to the circuit, the ci...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02H5/00H02J7/00
CPCH02H5/00H02J7/0031H02J7/00306
Inventor 张立新周毕兴
Owner SHENZHEN WATER WORLD CO LTD