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Open circuit detection device, circuit and method

An open circuit detection and circuit technology, applied in the direction of measuring device, measuring circuit, short circuit test, etc., can solve the problems of unreliability, low efficiency, noise or vibration, etc., and achieve the effect of accurate open circuit, high detection efficiency and protection from damage

Active Publication Date: 2016-04-27
AOTU ELECTRONICS WUHAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the measured voltage difference is easily disturbed or affected by the external environment, such as noise or vibration
Therefore, relying on this voltage difference for open circuit detection is likely to be inaccurate or unreliable, and less efficient due to the multiple measurements of the voltage on this line

Method used

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  • Open circuit detection device, circuit and method
  • Open circuit detection device, circuit and method
  • Open circuit detection device, circuit and method

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Embodiment Construction

[0016] A detailed description will be given below of embodiments of the present invention. Although the present invention will be described and illustrated in conjunction with some specific embodiments, it should be noted that the present invention is not limited to these embodiments. On the contrary, any modification or equivalent replacement made to the present invention shall be included in the scope of the claims of the present invention.

[0017] Embodiments of the present invention provide an open circuit detection device, system and method. In one embodiment, an open circuit detection device is used for detecting a connection state of a connection circuit connected to a battery, and the open circuit detection device includes a first pin and a second pin. The first pin is connected to the positive terminal of the battery cell through the connection circuit. The second pin is connected to the negative terminal of the battery cell through the connecting circuit. Wherein...

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Abstract

The invention discloses an open circuit detection device, which is used to detect the connection state of a line connected to a battery, wherein the battery includes a plurality of battery cells, the open circuit detection device includes a first pin and a second pin, and the first pin One pin is connected to the positive terminals of the plurality of battery cells through a connection circuit, and the second pin is connected to the negative terminals of the plurality of battery cells through a connection circuit, wherein the current path flowing through the connection circuit A change in the detected voltage between the first pin and the second pin indicates a change in the current path corresponding to a disconnection of a line between the connection circuit and the battery cell.

Description

technical field [0001] The invention relates to a circuit detection, in particular to an open circuit detection device, circuit and method for detecting whether the circuit between a battery and an external circuit is disconnected. Background technique [0002] There are many types of batteries, such as lithium batteries and lead-acid batteries. A battery may include multiple battery cells. Typically each battery cell is connected to external circuitry for various purposes such as charging, discharging or cell balancing. The wires connecting the battery cells to external circuitry can be accidentally disconnected during battery charging, discharging, or balancing, causing the battery to become unbalanced and damage the entire battery. Therefore, open circuit detection is especially important. [0003] Typically, an open circuit is detected by taking multiple voltage measurements on the line to obtain a voltage difference. For example, the first measurement shows that the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/02G01R31/28
CPCG01R31/396G01R31/52G01R31/54
Inventor 汤小虎栗国星
Owner AOTU ELECTRONICS WUHAN
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