CN2702453Y - A waterproof mobile phone battery - Google Patents

Abstract

The utility model discloses a waterproof mobile phone battery, comprising a battery housing, and also comprising a water inlet detection circuit board arranged in the housing, wherein a water inlet detection circuit connected to the positive and negative electrode output ends of the battery is arranged on the detection circuit board, a water inlet sensor is arranged in the circuit, and a water inlet hole opposite to the sensor is arranged in the housing. By arranging the water inlet detection circuit in the battery, when the mobile phone is water-inletted, the water inlet sensor will send a detection signal to the detection circuit, the detection circuit can be automatically disconnected, and the mobile phone will no longer continue to work, so that the mobile phone and the battery will not be damaged by water inlet.

Description

A waterproof mobile phone battery

technical field

The utility model relates to a mobile phone battery, in particular to a mobile phone battery which can automatically cut off power when the mobile phone enters water.

Background technique

In the prior art, because the battery in the mobile phone does not have waterproof function, when the mobile phone enters water, the circuit of the mobile phone will continue to work because the power supply circuit of the battery will not be automatically disconnected, and the mobile phone will be damaged. After contact with water, it can discharge through water, resulting in power loss.

Utility model content

The technical problem to be solved by the utility model is to provide a waterproof battery, which can automatically disconnect the power supply circuit of the battery when it touches water, so that the mobile phone and the battery will not be damaged due to water ingress.

The technical scheme provided by the utility model is as follows: construct a waterproof mobile phone battery, including a battery case, and a water inflow detection circuit board arranged in the case, on which a battery electrode output terminal is provided. The connected water inlet detection circuit is provided with a water inlet sensor in the circuit, and a water inlet hole opposite to the sensor is arranged in the housing.

In the above-mentioned waterproof mobile phone battery, the water inlet detection circuit includes a control integrated block, a MOS tube, and a switch integrated block. The water inlet sensor is composed of two fork-shaped hardware pieces, one of which is connected to the positive pole of the battery, and the other One metal sheet pin is connected to the pin of the MOS tube, the other pin of the MOS tube is connected to the positive pole of the battery through a resistor, and the third pin of the MOS tube is integrated with the control integrated block and the switch respectively The pins of the block are connected, the negative pole of the battery is respectively connected to one pin of the control manifold and the switch manifold, and the pin of the switch manifold connected to the third pin of the MOS tube is the negative output terminal of the battery .

The utility model has the following advantages: by setting the water inflow detection circuit in the battery, when the mobile phone enters water, the water inflow sensor will send a detection signal to the detection circuit, the detection circuit can be automatically disconnected, and the mobile phone will not continue to work, so that the mobile phone And the battery will not be damaged by water ingress.

Description of drawings

Fig. 1 is a structural representation of the utility model waterproof battery;

Figure 2 is a schematic circuit diagram of a waterproof battery.

Detailed ways

Referring to Fig. 1, a kind of waterproof mobile phone battery is provided, which includes a battery case 3, and a water inflow detection circuit board 2 is also provided in the case 3, and a water inflow detection circuit board 2 connected with the battery electrode output terminal is provided on the detection circuit board 2. The detection circuit is provided with a water inlet sensor in the circuit, and a water inlet hole 1 opposite to the sensor is provided on the casing 3 .

Referring to Figure 2, the water ingress detection circuit installed in the battery of a waterproof mobile phone includes a control integrated block U1, a MOS tube Q1, and a switch integrated block U2. The water ingress sensor 6 is composed of two fork-shaped hardware pieces 4 and 5, one of which is The pin is connected to the positive pole of the battery, the other pin is connected to the pin of the MOS tube Q1, the other pin of the MOS tube Q1 is connected to the positive pole of the battery through a resistor, and the third pin of the MOS tube Q1 is respectively connected to the control The pins of integrated block U1 and switch integrated block U2 are connected, the negative pole of the battery is respectively connected with one pin of the protection control integrated block and the switch integrated block, and the lead of switch integrated block U2 connected with the third pin of MOS tube Q1 The pin is the negative output terminal of the battery. The model of the switch manifold U2 is an N-channel tube, and the model of the protection control manifold U1 is 8241ABFMC-GAA-T2. When the water inflow sensor 6 detects water inflow, it will send a detection signal, and the MOS tube Q1 connected to it will be turned on, so as to send a signal to the control manifold U1, and the control manifold U1 will send a signal to the switch manifold U2 connected to it, The switch integrated block U2 automatically disconnects the negative pole power supply circuit of the battery, thereby protecting the mobile phone and the battery from damage due to water ingress.

The above-mentioned mobile phone battery is a lithium battery.

Claims (3)

1. A waterproof mobile phone battery, comprising a battery case, characterized in that it also includes a water inflow detection circuit board arranged in the case, and a water inflow detection circuit board connected to the output terminal of the battery electrode is provided on the detection circuit board. The detection circuit is provided with a water inlet sensor in the circuit, and a water inlet hole opposite to the sensor is arranged in the casing. 2. The waterproof mobile phone battery according to claim 1, wherein the water inlet detection circuit includes a control manifold, a MOS tube, and a switch manifold, and the water inlet sensor is composed of two fork-shaped hardware pieces, one of which is The pin of the hardware piece is connected to the positive pole of the battery, the other pin of the hardware piece is connected to the pin of the MOS tube, the other pin of the MOS tube is connected to the positive pole of the battery through a resistor, and the third pin of the MOS tube respectively connected to the pins of the control integrated block and the switch integrated block, the negative pole of the battery is respectively connected to one pin of the control integrated block and the switch integrated block, and the switch connected to the third pin of the MOS tube The manifold pin is the negative output of the battery. 3. The waterproof mobile phone battery according to claim 1 or 2, wherein the battery is a lithium battery.

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