CN208352475U - A kind of lithium battery fireproof anti-explosion device - Google Patents

A kind of lithium battery fireproof anti-explosion device Download PDF

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Publication number
CN208352475U
CN208352475U CN201820870464.1U CN201820870464U CN208352475U CN 208352475 U CN208352475 U CN 208352475U CN 201820870464 U CN201820870464 U CN 201820870464U CN 208352475 U CN208352475 U CN 208352475U
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oxide
semiconductor
temperature sensor
metal
battery
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CN201820870464.1U
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Chinese (zh)
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易佳胜
白海军
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ELOIK COMMUNICATION EQUIPMENT TECHNOLOGY Co Ltd
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ELOIK COMMUNICATION EQUIPMENT TECHNOLOGY Co Ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Abstract

The utility model provides a kind of lithium battery fireproof anti-explosion device, including battery core, battery protecting plate, first temperature sensor, conducting wire, protect chip, second temperature sensor, controllable three end fuse, charge metal-oxide-semiconductor and electric discharge metal-oxide-semiconductor, first temperature sensor is arranged in battery core, the top of battery core is arranged in battery protecting plate, conducting wire is connected to one end of battery protecting plate, protect chip, second temperature sensor, controllable three end fuse, charging metal-oxide-semiconductor and electric discharge metal-oxide-semiconductor are arranged on battery protecting plate, first temperature sensor is connect with protection chip electric signal, controllable three end fuse, second temperature sensor, charging metal-oxide-semiconductor and electric discharge metal-oxide-semiconductor are connected with protection chip respectively.The utility model has the beneficial effects that control metal-oxide-semiconductor temperature can be faced in real time, and solves the problems, such as battery unprotect state after metal-oxide-semiconductor breakdown.

Description

A kind of lithium battery fireproof anti-explosion device
Technical field
The utility model belongs to li-ion cell protection technical field, more particularly, to a kind of lithium battery fireproof anti-explosion device.
Background technique
Lithium ion battery is known as green energy resource.It is small in size, light-weight, and capacity is big, pollution-free.Gradually recognized by everybody Know, is applied to every field.Although lithium ion battery has many good qualities, but it also has a big disadvantage.I.e. in use, by Cause battery operating current excessive in reasons such as the overcharging of lithium battery, over-discharge or internal short-circuits, thus keep the temperature of battery excessively high, The gas for generating high temperature and pressure, keeps the pressure and temperature of inside battery all very high, when the pressure and temperature in battery is more than battery When the ability to bear of packing container, packing container is blown, and the flammable and explosive substance outflow of the inside is so as to cause explosion, on fire etc. Serious accident, therefore require to be provided with special fireproof anti-explosion device on lithium battery, but existing fireproof anti-explosion device can not Monitor MOS temperature, and battery unprotect state after metal-oxide-semiconductor breakdown in real time.
Utility model content
The shortcomings that the purpose of the utility model is to overcome the prior arts provides a kind of lithium battery fireproof anti-explosion device, energy It is enough to face control metal-oxide-semiconductor temperature in real time, and solve the problems, such as battery unprotect state after metal-oxide-semiconductor breakdown.
In order to solve the above technical problems, the technical solution adopted in the utility model is: a kind of lithium battery fireproof anti-explosion device, Including battery core, battery protecting plate, the first temperature sensor, conducting wire, protection chip, second temperature sensor, the insurance of controllable three end Silk, charging metal-oxide-semiconductor and electric discharge metal-oxide-semiconductor, first temperature sensor are arranged in the battery core, the battery protecting plate setting On the top of the battery core, the conducting wire is connected to one end of the battery protecting plate, the protection chip, the second temperature Sensor, the controllable three end fuse, the charging metal-oxide-semiconductor and the electric discharge metal-oxide-semiconductor are arranged at the battery protecting plate On, first temperature sensor is connect with the protection chip electric signal, the controllable three end fuse, the second temperature Sensor, the charging metal-oxide-semiconductor and the electric discharge metal-oxide-semiconductor are connected with the protection chip respectively.
Further, the protection chip includes pin 10, pin 11, pin 25, pin 28 and pin 31, and described first Temperature sensor is connected on the pin 10, and the second temperature sensor is connected on the pin 11, and described controllable three End fuse is connected on the pin 25, and the charging metal-oxide-semiconductor is connected on the pin 31, the electric discharge metal-oxide-semiconductor connection On the pin 28.
Further, one end of the conducting wire is provided with fool proof terminal.
Further, the battery core is provided with multiple, and multiple battery cores are connected in series.
Further, the protection chip uses BQ40Z50 chip.
Compared with prior art, the utility model has the advantages and positive effects of:
Control charging metal-oxide-semiconductor and electric discharge metal-oxide-semiconductor temperature can be faced in real time by the second temperature sensor of setting, increase MOS Pipe high temperature protection;
By the controllable three end fuse of setting solve the problems, such as metal-oxide-semiconductor breakdown after battery unprotect state, work as electric current It more than certain value, can fuse, be avoided the problem that because metal-oxide-semiconductor leads to catching fire because electric current is excessive.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model;
Fig. 2 is the integrated circuit figure of the utility model
Fig. 3 is the protection chip circuit figure of the utility model;
Fig. 4 is first temperature sensor and second temperature sensor circuit diagram of the utility model;
Fig. 5 is the charging metal-oxide-semiconductor and electric discharge metal-oxide-semiconductor circuit diagram of the utility model;
Fig. 6 is the controllable three ends fuse circuit figure of the utility model.
In figure: the first temperature sensor of 1-;2- battery core;3- battery protecting plate;4- protects chip;5- charging metal-oxide-semiconductor;6- Two temperature sensors;7- electric discharge metal-oxide-semiconductor;The controllable three ends fuse of 8-;9- conducting wire: 10- fool proof terminal
Specific embodiment
In order to make those skilled in the art better understand the scheme of the utility model, with reference to the accompanying drawing and specific implementation The utility model is described in further detail for mode.Obviously, described embodiment is only one of the utility model Divide embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not having The every other embodiment obtained under the premise of creative work is made, is fallen within the protection scope of the utility model.It should be noted that For purposes of clarity, attached drawing and explanation in be omitted it is unrelated with the utility model, known to persons of ordinary skill in the art The expression and description of component and processing.
In the description of the present invention, it should be understood that term " on ", "lower", "front", "rear", "left", "right", The orientation or positional relationship of the instructions such as "top", "bottom", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.
As shown in Figures 1 to 6, the present embodiment provides a kind of lithium battery fireproof anti-explosion devices, including battery core 2, battery protection Plate 3, the first temperature sensor 1, conducting wire 9, protection chip 4, second temperature sensor 6, controllable three end fuse 8, charging metal-oxide-semiconductor 5 are arranged in battery core 2 with electric discharge metal-oxide-semiconductor 7, the first temperature sensor 1, and the top of battery core 2, conducting wire 9 is arranged in battery protecting plate 3 It is connected to one end of battery protecting plate 3, protection chip 4, second temperature sensor 6, controllable three end fuse 8, charging metal-oxide-semiconductor 5 It being arranged on battery protecting plate 3 with electric discharge metal-oxide-semiconductor 7, the first temperature sensor 1 is connect with protection 4 electric signal of chip, and controllable three End fuse 8, second temperature sensor 6, charging metal-oxide-semiconductor 5 and electric discharge metal-oxide-semiconductor 7 are connected with protection chip 4 respectively.
Wrong conducting wire 9 when to avoid replacing or install lithium battery, one end of conducting wire 9 is provided with fool proof terminal 10.
Battery core 2 is provided with multiple, multiple series connections of battery cores 2.
Chip 4 is protected to use BQ40Z50 chip.BQ40Z50 chip electricity calculating method more optimizes, and electric quantity metering precision is more It is high;Support the battery of larger capacity;Increase the defencive function to temperature, higher safety;More configuration projects;More Data record project;Smaller encapsulation.
First temperature sensor 1 uses DAE STE-AT103J-60-S, and second temperature sensor 6 uses ECTH160808 103J3435FST,
Protecting chip 4 includes pin 10, pin 11, pin 25, pin 28 and pin 31, and pin 10 is TS1 pin, pin 11 be TS2 pin, pin 25 is FUSE pin, pin 31 is CHG pin, and pin 28 is DSG pin, the first temperature sensor 1 It is connected on the pin 10 of protection chip 4, second temperature sensor 6 is connected on the pin 11 of protection chip 4, and controllable three end is protected Dangerous silk 8 is connected on the pin 25 of protection chip 4, and charging metal-oxide-semiconductor 5 is connected on pin 31, and electric discharge metal-oxide-semiconductor 7 is connected to pin On 28.
The course of work of this example:
In the course of work when 2 temperature drift of battery core, the first temperature sensor 1 can detect temperature drift, and then start Chip 4 is protected to close the movement of electric discharge metal-oxide-semiconductor 7;
The metal-oxide-semiconductor 7 that discharges is normal, but temperature drift at metal-oxide-semiconductor: electric current may be caused extremely bigger than normal due to peripheral hardware, and electric current Not up to protection value will lead to temperature drift at metal-oxide-semiconductor at this time.If there is this exception, temperature is can be detected in second temperature sensor 6 It is higher, and then starting protection chip 4 closes the movement of electric discharge metal-oxide-semiconductor 7;
The metal-oxide-semiconductor 7 that discharges fails, and temperature increases: temperature anomaly can be detected in second temperature sensor 6 at this time, protects chip 4 Electric discharge metal-oxide-semiconductor 7 is closed in starting, but can not be closed since electric discharge metal-oxide-semiconductor 7 is no longer valid at this time, and protection chip 4 can detect nothing Method closes the abnormal and then controllable three end fuse 8 that fuses of electric discharge metal-oxide-semiconductor 7.
The metal-oxide-semiconductor 7 that discharges fails, and temperature does not increase, but is unable to control electric discharge metal-oxide-semiconductor 7 and turns off: discharge current is small at this time, i.e., Metal-oxide-semiconductor is set to fail, but temperature does not increase.It is to be discharged to low-voltage protection point when, when the protection control electric discharge metal-oxide-semiconductor 7 of chip 4 is closed, It detects and is unable to control, can fuse controllable three end fuse 8.
The beneficial effects of the utility model are: control charging metal-oxide-semiconductor can be faced in real time by the second temperature sensor of setting With electric discharge metal-oxide-semiconductor temperature, increase metal-oxide-semiconductor high temperature protection;
By the controllable three end fuse of setting solve the problems, such as metal-oxide-semiconductor breakdown after battery unprotect state, work as electric current It more than certain value, can fuse, be avoided the problem that because metal-oxide-semiconductor leads to catching fire because electric current is excessive.
One or more embodiments of the utility model are described in detail above, but the content is only that this is practical Novel preferred embodiment, should not be considered as limiting the scope of the present invention.It is all according to present utility model application model All the changes and improvements made by enclosing etc., should still belong within the patent covering scope of the utility model.

Claims (5)

1. a kind of lithium battery fireproof anti-explosion device, it is characterised in that: including battery core, battery protecting plate, the first temperature sensor, lead Line, protection chip, second temperature sensor, controllable three end fuse, charging metal-oxide-semiconductor and electric discharge metal-oxide-semiconductor, first temperature pass Sensor is arranged in the battery core, and the top of the battery core is arranged in the battery protecting plate, and the conducting wire is connected to the electricity One end of pond protection board, the protection chip, the second temperature sensor, the controllable three end fuse, the charging MOS Pipe and the electric discharge metal-oxide-semiconductor are arranged on the battery protecting plate, first temperature sensor and protection chip electricity Signal connection, the controllable three end fuse, the second temperature sensor, the charging metal-oxide-semiconductor and the electric discharge metal-oxide-semiconductor point It is not connected with the protection chip.
2. lithium battery fireproof anti-explosion device according to claim 1, it is characterised in that: the protection chip includes pin 10, pin 11, pin 25, pin 28 and pin 31, first temperature sensor are connected on the pin 10, and described second Temperature sensor is connected on the pin 11, and the controllable three end fuse is connected on the pin 25, the charging MOS Pipe is connected on the pin 31, and the electric discharge metal-oxide-semiconductor is connected on the pin 28.
3. lithium battery fireproof anti-explosion device according to claim 1, it is characterised in that: one end of the conducting wire is provided with anti- Slow-witted terminal.
4. lithium battery fireproof anti-explosion device according to claim 1, it is characterised in that: the battery core be provided with it is multiple, it is more A battery core is connected in series.
5. lithium battery fireproof anti-explosion device according to claim 1, it is characterised in that: the protection chip uses BQ40Z50 chip.
CN201820870464.1U 2018-06-06 2018-06-06 A kind of lithium battery fireproof anti-explosion device Active CN208352475U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201820870464.1U CN208352475U (en) 2018-06-06 2018-06-06 A kind of lithium battery fireproof anti-explosion device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201820870464.1U CN208352475U (en) 2018-06-06 2018-06-06 A kind of lithium battery fireproof anti-explosion device

Publications (1)

Publication Number Publication Date
CN208352475U true CN208352475U (en) 2019-01-08

Family

ID=64890811

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201820870464.1U Active CN208352475U (en) 2018-06-06 2018-06-06 A kind of lithium battery fireproof anti-explosion device

Country Status (1)

Country Link
CN (1) CN208352475U (en)

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