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Charger capable of intelligently identifying types and string number of lithium batteries and charging method

A technology of intelligent identification and charging method, applied in the direction of exchange data charger, battery data exchange, battery circuit device, etc., can solve the problem of inability to intelligently identify the type and number of lithium batteries, so as to achieve safe and reliable charging, prolong service life, Ease of use

Active Publication Date: 2020-10-02
东莞市乐丰电器科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a charger and a charging method for intelligently identifying the type and number of lithium batteries, so as to solve the problem that the existing intelligent chargers cannot intelligently identify the type and number of lithium batteries

Method used

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  • Charger capable of intelligently identifying types and string number of lithium batteries and charging method
  • Charger capable of intelligently identifying types and string number of lithium batteries and charging method
  • Charger capable of intelligently identifying types and string number of lithium batteries and charging method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] A lithium battery is mainly composed of a positive electrode, a negative electrode, a separator, and an electrolyte. There are many kinds of positive electrode materials, including: lithium cobalt oxide LCO, lithium manganese oxide LMO, lithium iron phosphate LFP, ternary lithium, and lithium titanate LTO. Ternary lithium mainly includes nickel-cobalt lithium manganate NCM and a small part of nickel-cobalt lithium aluminate NCA.

[0045] Table 1 lists the comparison of various materials for common lithium batteries and the characteristics and parameters of lithium batteries.

[0046] Comparison chart of various materials for common lithium batteries 1

[0047]

[0048] In this embodiment, lithium iron phosphate LFP is taken as an example for illustration.

[0049] see figure 1 As shown, this embodiment provides a charger with RS485 communication to intelligently identify the type and number of lithium batteries, including: a main circuit and a control and display ...

Embodiment 2

[0087] see figure 2 As shown, this embodiment provides a charging method, which can be used in the above-mentioned charger for intelligently identifying the type and number of lithium batteries provided. Compared with the prior art, the charging method is safer and more effective, and can adapt to charging under various abnormal conditions.

[0088] Specifically, the charging method includes: Step S1:

[0089] Detect and identify the type and number of battery packs;

[0090] According to the type and number of strings detected and identified, obtain the corresponding preset charging scheme;

[0091] According to the preset charging scheme, the battery pack is charged.

[0092] Specifically, the preset charging scheme includes:

[0093] Step S2 , judging the range of the current voltage of the battery pack, that is, the initial voltage range. According to the charging principle of lithium batteries, the voltage range usually includes pre-charge voltage range, trickle vol...

Embodiment 3

[0140] see figure 1 and figure 2 As shown, in another embodiment of the present application, the solutions in the above two embodiments are further described through specific models of battery packs. The specific model of the battery pack is: lithium iron phosphate LFP voltage level 48V / 40Ah (16S).

[0141] For the charger provided in this embodiment, when the charger is plugged into a power supply without a battery pack, the charger turns into an empty state and has no output.

[0142] The input terminal is 90-264Vac city network AC, AC relay, electromagnetic interference filter EMI, and the VDC obtained by the input rectification filter circuit is sent to the auxiliary power supply. At this time, the primary side of the auxiliary power supply will have 12V and 15V output, of which 12V is for the K1AC relay and power supply. The metering circuit (the actual working voltage is 3.3V), the 15V control circuit supplies power to the PFC PWM controller and the DC / DC PWM controll...

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Abstract

The invention discloses a charger capable of intelligently identifying types and string number of lithium batteries and a charging method. The charger comprises a main circuit which is used for providing a charging voltage for a battery pack; and a control and display circuit which comprises an intelligent identification module and an MCU microcontroller, wherein the intelligent identification module is used for identifying the types and string number of the battery pack, and the MCU microcontroller is used for controlling the main circuit to charge the battery pack according to a preset charging scheme corresponding to the types and the string number of the battery pack. According to the charger capable of intelligently identifying the types and the string number of the lithium batteriesand the charging method provided by the embodiment of the invention, the types and the string number of the battery packs can be identified through the intelligent identification module, and the charger acquires the corresponding preset charging schemes according to the identified types and the string number so as to safely charge the battery packs. According to the charger and the charging method, charging is safer and more reliable, the charger and the charging method can adapt to battery packs of various types and string numbers, great convenience is brought to users, and the service life of the battery packs is prolonged.

Description

technical field [0001] The invention belongs to the technical field of intelligent chargers, in particular to a charger and a charging method for intelligently identifying the type and string number of lithium batteries. Background technique [0002] With the continuous consumption of non-renewable energy sources, the coming energy crisis forces countries to pay more attention to the development of new energy sources. As a traditional industry, batteries are undergoing unprecedented changes, especially in the fields of communication and power. [0003] Lithium-ion battery is a kind of rechargeable battery, which has the advantages of high energy density, miniaturization, thinning, light weight, high safety, and long cycle life. In people's daily work and life, with the wide application of various electronic products, various chargers are indispensable. It is in this environment that the development of smart chargers arises as the times require. [0004] The simple charger...

Claims

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Application Information

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IPC IPC(8): H02J7/00
CPCH02J7/0029H02J7/00036H02J7/00047H02J7/0071
Inventor 陈文乐
Owner 东莞市乐丰电器科技有限公司
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