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battery protection system

A protection system and electrostatic protection technology, applied in the field of circuits, can solve the problem of occupying circuit board area, and achieve the effect of saving space

Active Publication Date: 2021-01-01
NANJING ZGMICRO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the prior art, the way of using the current limiting resistor R1 needs to occupy the area of ​​the circuit board

Method used

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Embodiment Construction

[0036] In order to make the technical solutions and advantages in the embodiments of the present application clearer, the exemplary embodiments of the present application will be further described in detail below in conjunction with the accompanying drawings. Apparently, the described embodiments are only part of the embodiments of the present application, and Not an exhaustive list of all embodiments. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0037] In the prior art, lithium batteries are mostly equipped with a chip that plays a protective role, and the connection between the chip and the lithium battery adopts that the pins of the chip are directly connected to the positive and negative electrodes of the lithium battery. Since the chip is an electronic device, it has a certain service life and a defective rate. At the same time, during the process of d...

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Abstract

An embodiment of the invention provides a battery protection system, and the space of a circuit board is saved. The battery protection system provided by the embodiment of the invention comprises a battery cell and a battery protection chip, wherein the battery protection chip comprises a battery protection wafer, a packaging body used for packaging the battery protection wafer, and leads used forelectrically connecting gaskets on the battery protection wafer to the outside of the packaging body, wherein the battery protection wafer comprises a first gasket, a second gasket, and an electrostatic protection device and a current-limiting resistor which are connected between the first gasket and the second gasket in series, the electrostatic protection device is broken down when static electricity is generated, so that an electrostatic discharge passage is formed among the first gasket, the electrostatic protection device, the current-limiting resistor and the second gasket, wherein leadconnected with the first gasket is connected with the positive electrode of the battery cell; the lead connected with the second gasket is connected with the negative electrode of the battery cell.

Description

technical field [0001] The present application relates to the field of circuit technology, in particular to a battery protection system. Background technique [0002] Lithium batteries in the prior art, because their structures contain flammable substances, therefore, it is necessary to pay special attention to data related to temperature, voltage, current, etc., and in order to obtain accurate data, most of them will be equipped with protection chips to monitor the data, Or make adjustments in time when there is a problem with the data. [0003] figure 1 It is a circuit diagram of a battery protection system in the prior art, such as figure 1 As shown, in order to prevent the protection chip from being damaged due to life problems or accidents, which will cause a large current leakage inside the protection chip and cause the battery to spontaneously ignite and cause explosions and other accidents, a current-limiting resistor R1 will be set in the circuit. The resistance ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00
CPCH02J7/0029
Inventor 尹航王钊杨晓东
Owner NANJING ZGMICRO CO LTD