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Battery protection wafer and battery protection chip

A technology for protecting chips and battery cells, applied in the circuit field, can solve the problem of occupying the area of ​​the circuit board, and achieve the effect of saving space

Pending Publication Date: 2018-08-28
NANJING ZGMICRO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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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  • Battery protection wafer and battery protection chip
  • Battery protection wafer and battery protection chip
  • Battery protection wafer and battery protection chip

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Embodiment Construction

[0045] In order to make the technical solutions and advantages in the embodiments of the present invention clearer, the exemplary embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, and Not an exhaustive list of all embodiments. It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0046] 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 dischargin...

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Abstract

The embodiment of the invention provides a battery protection wafer and a battery protection chip, which saves the space of a circuit board. The battery protection wafer provided by the embodiment ofthe invention comprises a first gasket, a second gasket, and an electrostatic protection device and a current limiting resistor which are connected in series between the first gasket and the second gasket, wherein the electrostatic protection device is broken down in case of static electricity, so that a static electricity release passageway is formed among the first gasket, the electrostatic protection device, the current limiting resistor and the second gasket.

Description

technical field [0001] The invention relates to the technical field of circuits, in particular to a battery protection chip and a battery protection chip. 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...

Claims

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Application Information

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IPC IPC(8): H01M10/42
CPCH01M10/42Y02E60/10
Inventor 尹航王钊杨晓东
Owner NANJING ZGMICRO CO LTD