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Battery over-discharging restart circuit, energy storage device and control method

A technology of battery power and battery, which is applied in battery circuit devices, circuit devices, charging, maintenance, charging/discharging, etc., and can solve problems such as battery device paralysis

Active Publication Date: 2019-04-02
GREE ELECTRIC APPLIANCES INC
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the defect in the prior art that the battery device is easily paralyzed when the battery is over-discharged, the present invention proposes a battery over-discharge restart circuit, an energy storage device and a control method

Method used

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  • Battery over-discharging restart circuit, energy storage device and control method
  • Battery over-discharging restart circuit, energy storage device and control method
  • Battery over-discharging restart circuit, energy storage device and control method

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Embodiment Construction

[0020] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0021] The invention aims at restarting the energy storage device through the over-discharge reset device to charge the battery when the battery in the energy storage device is seriously over-discharged, and restore the paralyzed energy storage device to a normal working state.

[0022] The invention discloses a battery over-discharge restart circuit, see figure 1 The basic principle block diagram shown includes a battery, a bidirectional converter connected to the battery and a battery manager, and a cold start button Ks is connected in series between the positive power line or the negative pow...

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Abstract

The invention discloses a battery over-discharging restart circuit, an energy storage device and a control method, wherein the battery over-discharging restart circuit comprises a battery, a bidirectional converter and a battery manager; the bidirectional converter and the battery manager are connected to the battery; a cold start button Ks is connected between the battery and the positive power line or negative power line of the battery manager in series; the cold start button Ks is connected with a power supply switch K3 in parallel; when the cold start button Ks is closed, the battery manager detects the battery capacity; and the bidirectional converter and the power supply switch K3 are controlled according to the battery capacity. According to the battery over-discharging restart circuit, the energy storage device and the control method disclosed by the invention, the start problem after the energy storage device is over-discharged can be effectively solved; on the basis of the existing circuit of the energy storage device, few components are increased, so that the self-saving function is realized; and the battery over-discharging restarting circuit has the advantages of beinghigh in self-adaptation, low in cost, simple, convenient and easy to operate.

Description

technical field [0001] The invention relates to a power energy storage device, in particular to a battery over-discharge restart circuit, an energy storage device using the circuit, and a control method for the circuit. Background technique [0002] Electric energy storage devices can store electrical energy and use it when needed. The core component of the electric energy storage device is the battery. In the process of long-term cycle use, the battery will often be seriously over-discharged due to the abnormality of the battery itself or self-discharge, and the charge (SOC) is lower than the set threshold. At this time, the battery management The device (BMS) enters the logic of severe over-discharge and cuts off all external outputs, resulting in the failure of the entire energy storage device to be powered, neither discharged nor charged, and paralyzed. [0003] Therefore, the industry urgently needs to find a reasonable restart circuit to ensure that the battery pack c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00
CPCH02J7/0069
Inventor 陈勇宋江喜袁金荣黄猛胡齐桂陈宝荣
Owner GREE ELECTRIC APPLIANCES INC
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