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Battery equalization device and method and unmanned aerial machine

A battery equalization and battery technology, which is applied in the direction of battery circuit devices, circuit devices, charge equalization circuits, etc., can solve the problems of battery equalization circuit occupation space, unfavorable battery miniaturization, etc., and achieve the effect of flexible use and space saving

Pending Publication Date: 2018-05-04
SHENZHEN AUTEL INTELLIGENT AVIATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Therefore, the technical problem to be solved by the present invention is to overcome the defects that the battery balancing circuit in the prior art takes up more space and is not conducive to the miniaturization of the battery, thereby providing a battery balancing device, method and drone

Method used

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  • Battery equalization device and method and unmanned aerial machine
  • Battery equalization device and method and unmanned aerial machine
  • Battery equalization device and method and unmanned aerial machine

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Embodiment 1

[0037] The embodiment of the present invention provides a battery equalization device. The meaning of battery equalization is to use power electronic technology to keep the voltage deviation of lithium-ion single cells or battery packs (multi-cell batteries) within the expected range, thereby ensuring that each cell The battery remains in the same state during normal use to avoid overcharging and overdischarging.

[0038] Such as figure 1 As shown, the battery balancing device mainly includes: a fuel gauge 1 and a microprocessor 2 .

[0039] Wherein, the fuel gauge 1 mentioned above is used to monitor the power information of the battery when the battery is at rest, and the fuel gauge 1 is provided with a battery balancing circuit inside, so that the fuel gauge 1 itself has a static balancing function. The communication port of the fuel gauge 1 is connected with the microprocessor 2 . The state of the battery at rest refers to the state of the battery without charging or dis...

Embodiment 2

[0058] An embodiment of the present invention provides a battery balancing method, such as Figure 4 As shown, the battery balancing method mainly includes the following steps:

[0059] Step S41: Obtain the power information of the battery when it is at rest, and calculate the pressure difference between the batteries when the battery is at rest according to the power information;

[0060] Specifically, each battery cell of the battery is connected to the pins of the fuel gauge, and the power information of the battery when the battery is at rest can be monitored in real time through a fuel gauge, and the power information is sent to the microprocessor. The information can calculate the pressure difference between the individual cells of the battery when the battery is at rest.

[0061] In one embodiment, before step S41, enabling the static equalization function of the fuel gauge is also included. The fuel gauge itself has a battery static equalization function, which needs...

Embodiment 3

[0073] The embodiment of the present invention also provides an unmanned aerial vehicle, which is provided with a battery that provides electric energy, and the battery can be balanced by using the battery equalization method described in the above-mentioned embodiment 2.

[0074] In one of the embodiments, the UAV is also provided with a battery balancing device as described in Embodiment 1, and the battery balancing device mainly includes: a fuel gauge 1 and a microprocessor 2, and the fuel gauge 1 and the microprocessor The function of 2 has been described in detail in Embodiment 1, and will not be repeated here.

[0075] The unmanned aerial vehicle of the embodiment of the present invention can use the balancing function integrated in the fuel gauge 1 to balance the battery when the battery is in a static state, which can save the space of the circuit board and facilitate the miniaturization of the battery. Moreover, it is possible to ensure the realization of battery bala...

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Abstract

The invention provides a battery equalization device and method and an unmanned aerial machine. The battery equalization device comprises a voltameter and a microprocessor, wherein the voltameter is used for monitoring electric quantity information when a battery stands, a battery equalization circuit is arranged in the voltameter, the microprocessor is connected with a communication port of the voltameter and is used for acquiring the electric quantity information monitored by the voltameter and judging whether voltage difference is higher than a voltage difference threshold or not accordingto the voltage difference among battery cells when the battery stands, the microprocessor is used for sending a trigger signal to the voltameter when the voltage difference is larger than the voltagedifference threshold, and the equalization circuit of the voltameter is triggered to equalize the battery. By implementing the battery equalization device, the space of a circuit board can be saved bythe integrated equalization function in the voltameter, and the battery miniaturization is conveniently achieved.

Description

technical field [0001] The invention relates to the technical field of battery management, in particular to a battery balancing device, method and unmanned aerial vehicle. Background technique [0002] At present, as the UAV market is becoming more and more miniaturized, the lithium batteries that power UAVs are also becoming more and more miniaturized. However, miniaturization will inevitably lead to a shortage of battery space. When designing the battery, some non-critical functions have to be omitted to free up space, such as the passive equalization circuit and active equalization interface outside the chip that take up a lot of space. However, multiple strings of UAV batteries have high requirements on the voltage consistency of the batteries. Unbalanced batteries have the risk of inaccurate power and jumps in power, which in turn brings safety hazards to aircraft flight. [0003] At present, the methods for battery balancing can be roughly divided into two types, acti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/42H01M10/48H02J7/00
CPCH01M10/4207H01M10/425H01M10/482H02J7/0014H01M2220/20H01M2010/4278H01M2010/4271H02J7/0048B64U50/30Y02E60/10H02J7/0016B64C39/024H01M10/441H02J7/0019B64U50/19
Inventor 秦威
Owner SHENZHEN AUTEL INTELLIGENT AVIATION TECH CO LTD
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