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Charger switching protection device for battery module

A battery module and protection device technology, applied in battery circuit devices, battery overvoltage protection, circuit devices, etc., can solve problems such as hidden dangers of device safety, and achieve the effect of avoiding inrush current and ensuring device safety.

Pending Publication Date: 2022-02-18
KEHUA DATA CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the embodiment of the present invention provides a charger switching protection device for the battery module to solve the problem of device safety hazards in the process of switching between the charger and the battery in the prior art

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  • Charger switching protection device for battery module
  • Charger switching protection device for battery module

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Embodiment Construction

[0036] In the following description, specific details such as specific system structures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present invention. It will be apparent, however, to one skilled in the art that the invention may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

[0037] In order to illustrate the technical solutions of the present invention, specific examples are used below to illustrate.

[0038] Such as figure 1 as shown, figure 1 The structure of a battery module charger switching protection device 100 provided by an embodiment of the present invention is shown, which includes:

[0039] Charging circuit 110, charger output switch K1, battery module 1...

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Abstract

The invention is suitable for the technical field of power supplies, and provides a charger switching protection device for a battery module, which comprises a charging circuit, a charger output switch, a battery module, a sampling circuit and a control module, the control module is used for controlling the charging circuit according to the output voltage of the charging circuit and the battery voltage if the charger starting signal is monitored when the charger output switch is in the off state, so that the output voltage of the charging circuit is smaller than or equal to the battery voltage. By acquiring the on-off state of the charger output switch, the output voltage of the charging circuit can be controlled to be smaller than the battery voltage before the charging circuit is switched on and the charger output switch is not closed, impact current generated when the charger output switch is closed is avoided, large current caused by voltage difference does not need to be artificially avoided, and the safety of the device in the switching process is ensured.

Description

technical field [0001] The invention belongs to the technical field of power supplies, and in particular relates to a charger switching protection device for battery modules. Background technique [0002] There are a large number of DC devices in nuclear power plants, and the power supply methods of these DC devices are divided into two types, one is provided by a charger, and the other is provided by a DC battery. [0003] Under normal circumstances, the charger is powered by the mains and supplies power to the DC load and the battery; when the charger itself is fault-protected, the maintenance personnel need to turn off the input and output switches of the charger. At this time, the battery supplies power to the DC load and the inverter. When supplying power, the battery voltage will start to drop, and the DC system will stop working after the battery voltage drops to the protection point. After the charger is repaired, it needs to be put into the DC system. Since the vol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00
CPCH02J7/00308H02J7/0031H02J7/007186H02J7/00711
Inventor 陈志彬付明星石楚源杨文泉任天磊杨海涌于艇
Owner KEHUA DATA CO LTD