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Voltage-temperature integrated testing device of storage battery set

A battery pack, voltage technology, applied in the direction of using electrical devices, thermometers, measuring devices, etc., can solve the problem of increasing the cost of battery inspection equipment, and achieve the effect of high-precision inspection

Active Publication Date: 2014-08-06
QINGDAO YANGPU INTELLIGENT TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The previous battery inspection equipment paid attention to the inspection of the voltage of each battery cell, but due to the different use conditions of each battery, the internal structure may change during use, and the temperature may be much higher than that of other batteries in the same group. Realizing the temperature inspection of each battery will increase the cost of battery inspection equipment. In order to save costs, in the past, the temperature of several points in the battery pack was measured, and the average value was taken as the battery temperature

Method used

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  • Voltage-temperature integrated testing device of storage battery set

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Embodiment Construction

[0012] Such as figure 1 As shown, an MCU (micro control unit) of an embodiment of the present invention is connected to a decoder, and the output terminals of the decoder are respectively connected to the optocoupler relay for voltage gating measurement and the optocoupler relay for temperature gating measurement. After gating the voltage of a single battery, measure the terminal voltage of the battery through the isolated output of the differential mode operational amplifier. When the voltage of the single battery is detected, the MCU stores its terminal voltage as the total voltage of the thermistor voltage divider circuit. At this time, the battery voltage inspection gating circuit remains closed, the temperature measurement optocoupler relay is closed, and the thermistor It forms a voltage divider circuit with the resistor at the differential mode output terminal. The divided voltage value is measured through A / D sampling, compared with the total voltage, the MCU calculate...

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Abstract

The invention discloses a voltage-temperature integrated testing device of a storage battery set. The device is programmed to be controlled by programmable chips, voltage of a single battery of the storage battery set is insulated and gated by an optocoupler relay, and an integrated operational amplifier performs differential mode operation on voltage at two ends of a battery cell of the storage set to acquire voltage of the single battery. On the basis of single battery voltage testing, a temperature testing optocoupler is controlled to be off through the programmable chips to test temperature of current gated batteries. Compared with the prior art, the voltage-temperature integrated testing device of the storage battery set realizes simultaneous integrated testing of voltage and temperature of the single battery in the storage battery set in series, overcomes the defect of separated testing of battery voltage and battery temperature in the past, and guarantees real-time synchronicity of battery voltage and battery temperature.

Description

technical field [0001] The invention relates to the field of detection of series battery packs, in particular to an integrated inspection device for voltage and temperature of battery packs. Background technique [0002] Series battery packs are widely used in various industries and fields such as electric vehicles, high-power energy storage equipment, and emergency power supplies. The battery pack is generally composed of multiple single cells connected in series. The performance of the battery plays a decisive role in the performance of the entire battery pack. The inspection can find out the performance status of the batteries in the battery pack, and the problematic batteries can be dealt with as soon as possible to avoid affecting the entire battery pack and ensure the efficient, safe and reliable operation of the battery pack. [0003] The previous battery inspection equipment paid attention to the inspection of the voltage of each battery cell, but due to the differen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R19/25G01K7/22
Inventor 戴瑜兴李建成郑崇伟郜克存毕大强曾国强张正江
Owner QINGDAO YANGPU INTELLIGENT TECH
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