CN212136629U - Water inlet protection structure of intelligent protection plate of lithium battery pack - Google Patents
Water inlet protection structure of intelligent protection plate of lithium battery pack Download PDFInfo
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- CN212136629U CN212136629U CN202020929224.1U CN202020929224U CN212136629U CN 212136629 U CN212136629 U CN 212136629U CN 202020929224 U CN202020929224 U CN 202020929224U CN 212136629 U CN212136629 U CN 212136629U
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- raindrop sensor
- battery pack
- mos pipe
- water inlet
- mos
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model discloses a protection architecture of intaking of lithium cell group intelligence protection shield, its technical scheme is: BMS control system, BMS control system includes the drive MOS pipe, parallelly connected a raindrop sensor who is used for detecting the water droplet on the drive MOS pipe, the beneficial effects of the utility model are that through parallelly connected a raindrop sensor on BMS control system drive MOS pipe, in case meet the resistance of sensor internal resistor when dripping, the voltage drop of power supply voltage ware this moment is extremely low, 2 pin grid on the drive MOS pipe is being connected through raindrop sensor output, so become open circuit state by the on-state between 1 pin source electrode and the 3 pin drain electrodes, will make the voltage reduction on the drive MOS pipe, through driving MOS pipe output end MOS array switch of being connected, when drive MOS pipe voltage is extremely low, MOS array switch electricity will lose control voltage, MOS array switch will break off naturally, thereby play the effect of protection group battery.
Description
Technical Field
The utility model relates to a lithium cell group intelligent protection field, concretely relates to water inlet protection structure of lithium cell group intelligent protection shield.
Background
Because all protection shields sold in the market all are hardware and IC and constitute so can not effectual prevention group battery protection of intaking, including all intelligent protection shields in the market do not take this function, lead to the group battery to get into water back electric core rust and rot and lead to the group battery short circuit to catch fire. In fact, a lot of fire accidents are ten accidents, nine accidents are that the inside of the battery pack has variation to cause short circuit fire, for example, the battery pack module structure is changed due to impact, and water enters the battery pack to cause the anode and the cathode of the battery pack to be rusted and connected to cause the short circuit fire.
Therefore, it is necessary to invent a water inlet protection structure of an intelligent protection plate of a lithium battery pack.
SUMMERY OF THE UTILITY MODEL
Therefore, the utility model provides a lithium cell group intelligence protection shield's protection architecture of intaking through connecting a raindrop sensor in parallel on BMS control system drive MOS pipe to solve the group battery and intake and the short circuit problem on fire that leads to.
In order to achieve the above object, the present invention provides the following technical solutions: the utility model provides a protection architecture that intakes of lithium cell group intelligence protection shield, includes:
the BMS control system comprises a driving MOS tube, and a raindrop sensor for detecting water drops is connected to the driving MOS tube in parallel.
Preferably, the output end of the driving MOS transistor is connected to a MOS array switch.
Preferably, the MOS array switch internally comprises a plurality of MOS transistors.
Preferably, a water-encountering variable resistor is arranged inside the raindrop sensor.
Preferably, the driving MOS transistor includes a 1-pin source, a 2-pin gate, and a 3-pin drain.
Preferably, the output end of the raindrop sensor is connected with a pin grid, and a power supply voltage device is connected in parallel between the raindrop sensor and the driving MOS tube.
Preferably, a resistor is arranged between the power supply voltage device and the raindrop sensor.
The utility model has the advantages that:
the utility model connects a raindrop sensor in parallel on the MOS tube driven by the BMS control system, the principle of the raindrop sensor is that the sensor is in an open circuit state under the condition that no water exists on the sensor, however, once the sensor meets a water drop, the resistance of the resistor in the sensor rises, the voltage of the power supply voltage device is reduced, the output end of the raindrop sensor is connected with the 2-pin grid electrode on the MOS tube driven by the raindrop sensor, therefore, the voltage on the driving MOS transistor is reduced to be extremely low when the conducting state between the source electrode of the 1 pin and the drain electrode of the 3 pin is changed into the open-circuit state, the output end of the driving MOS transistor is connected with the MOS array switch, when the voltage of the driving MOS tube is extremely low, the MOS array switch can lose the control voltage and can be naturally disconnected, thereby playing the effect of protection group battery, having solved the two-wheeled that the user used, tricycle, four-wheel lithium cell group car intake and the safety problem that the short circuit that leads to is on fire.
Drawings
FIG. 1 is a block diagram provided by the present invention;
fig. 2 is a circuit diagram of a driving MOS transistor provided by the present invention;
in the figure: the system comprises a BMS control system 1, an MOS array switch 2, a driving MOS tube 3, a power supply voltage 4, a resistor 5, a raindrop sensor 6 and an MOS tube 7.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
Referring to the attached drawings 1-2, the utility model provides a pair of water inlet protection structure of lithium cell group intelligence protection shield, include:
Further, the output end of the driving MOS transistor 3 is connected to the MOS array switch 2.
Further, the MOS array switch 2 includes a plurality of MOS transistors 7 therein.
Further, a water-encountering variable resistor is arranged inside the raindrop sensor 6, and the water-encountering variable resistor is a VARISTOR resistor.
Further, the driving MOS transistor 3 includes a 1-pin source, a 2-pin gate, and a 3-pin drain.
Furthermore, the output end of the raindrop sensor 6 is connected with a 2-pin grid, and a power supply voltage 4 is connected in parallel between the raindrop sensor 6 and the driving MOS tube 3.
Further, a resistor 5 is arranged between the power supply voltage 4 and the raindrop sensor 6, which is beneficial to the auxiliary power supply voltage 4 to reduce voltage.
The utility model discloses a use as follows: connect a rain sensor 6 in parallel on BMS control system 1 drive MOS pipe 3, rain sensor 6's principle is the open circuit state under the condition that does not have water on the sensor, however in case meet the resistance rise of a water variable resistor in the sensor when dripping, supply voltage ware 4's voltage reduction this moment, 2 pin grid on drive MOS pipe 3 are being connected through rain sensor 6 output, so become open circuit state by on-state between 1 pin source and the 3 pin drain-source electrode, will make the voltage drop on through drive MOS pipe 3 extremely low, through driving MOS pipe 3 output connection MOS array switch 2, when drive MOS pipe 3 voltage is extremely low, MOS array switch 2 electricity will lose control voltage, MOS array switch 2 will break off naturally, thereby play the effect of protection group battery.
The above description is only a preferred embodiment of the present invention, and any person skilled in the art may modify the present invention or modify it into an equivalent technical solution by using the technical solutions described above. Therefore, any simple modifications or equivalent replacements made according to the technical solution of the present invention belong to the scope of the claimed invention as far as possible.
Claims (7)
1. The utility model provides a protection architecture that intakes of lithium cell group intelligence protection shield which characterized in that includes:
the BMS control system (1), BMS control system (1) is including drive MOS pipe (3), be connected in parallel on drive MOS pipe (3) and be used for detecting raindrop sensor (6) of water droplet.
2. The water inlet protection structure of the intelligent protection plate for the lithium battery pack as claimed in claim 1, wherein: the output end of the driving MOS tube (3) is connected with the MOS array switch (2).
3. The water inlet protection structure of the intelligent protection plate for the lithium battery pack as claimed in claim 2, wherein: the MOS array switch (2) internally comprises a plurality of MOS tubes (7).
4. The water inlet protection structure of the intelligent protection plate for the lithium battery pack as claimed in claim 1, wherein: and a water variable resistor is arranged in the raindrop sensor (6).
5. The water inlet protection structure of the intelligent protection board for the lithium battery pack as claimed in claim 2 or 3, wherein: the driving MOS tube (3) comprises a 1-pin source electrode, a 2-pin grid electrode and a 3-pin drain electrode.
6. The water inlet protection structure of the intelligent protection plate for the lithium battery pack as claimed in claim 1, wherein: the output end of the raindrop sensor (6) is connected with a 2-pin grid, and a power supply voltage (4) is connected in parallel between the raindrop sensor (6) and the drive MOS tube (3).
7. The water inlet protection structure of the intelligent protection plate for the lithium battery pack as claimed in claim 6, wherein: and a resistor (5) is arranged between the power supply voltage device (4) and the raindrop sensor (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020929224.1U CN212136629U (en) | 2020-05-28 | 2020-05-28 | Water inlet protection structure of intelligent protection plate of lithium battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020929224.1U CN212136629U (en) | 2020-05-28 | 2020-05-28 | Water inlet protection structure of intelligent protection plate of lithium battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212136629U true CN212136629U (en) | 2020-12-11 |
Family
ID=73669584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020929224.1U Active CN212136629U (en) | 2020-05-28 | 2020-05-28 | Water inlet protection structure of intelligent protection plate of lithium battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212136629U (en) |
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2020
- 2020-05-28 CN CN202020929224.1U patent/CN212136629U/en active Active
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