CN202737506U - Novel automobile lithium-ion battery module protecting circuit - Google Patents
Novel automobile lithium-ion battery module protecting circuit Download PDFInfo
- Publication number
- CN202737506U CN202737506U CN 201220319912 CN201220319912U CN202737506U CN 202737506 U CN202737506 U CN 202737506U CN 201220319912 CN201220319912 CN 201220319912 CN 201220319912 U CN201220319912 U CN 201220319912U CN 202737506 U CN202737506 U CN 202737506U
- Authority
- CN
- China
- Prior art keywords
- battery
- management system
- lithium ion
- battery pack
- protection circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model provides a novel automobile lithium-ion battery module protecting circuit which comprises a battery pack and a battery management system, wherein a plurality of battery modules are connected with one another in series to form the battery pack; the battery management system is used for controlling the charging and discharging of the battery pack; and one controlled switch is connected between every two battery modules or among the plurality of battery modules in series, and the controlled switches are controlled by the battery management system. The novel automobile lithium-ion battery module protecting circuit has the advantages and the beneficial effects that under the condition that the battery pack suffers from abnormal external force impact, the plurality of battery modules are instantaneously separated from one another, and the voltage of each segment is lower than a human body protecting voltage, so that a human body is prevented from being damaged by the exposed battery pack, and the probability of fire danger caused by short circuit can be greatly reduced.
Description
Technical field
The utility model belongs to battery charging and discharging circuit engineering field, especially relates to a kind of new type lithium ion automobile batteries module protection circuit.
Background technology
Lithium battery more and more receives people's concern with advantages such as high-energy-density, high repetitive cycling access times, lightweight and environmental protections.Battery management system BMS will guarantee that as the core component of battery protection and management cell safety uses reliably.
At present, among the existing cell management system of electric automobile BMS, under normal circumstances at total anodal and total negative pole two ends series connection fuse and gate-controlled switch.Run in the situation of external force strong impaction at automobile like this, the two ends fuse cuts off after receiving signal, but does not cut off between the mid portion series-connected cell module, and voltage is still very high, can cause short circuit to cause fire hazard, jeopardize personal safety hidden danger.
Summary of the invention
For the problems referred to above, the purpose of this utility model provides a kind of new type lithium ion automobile batteries module protection circuit.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of new type lithium ion automobile batteries module protection circuit; comprise the battery pack that is in series by a plurality of battery modules and it is discharged and recharged the battery management system of control; gate-controlled switch of series connection between every two or more battery module, described gate-controlled switch is controlled by battery management system.
Further, described gate-controlled switch is a kind of in the series switch control devices such as metal-oxide-semiconductor, relay, triode.
Further, described metal-oxide-semiconductor is N channel enhancement metal-oxide-semiconductor.
Further, also be connected with signal transducer in the described battery management system.
Further, described signal transducer comprises pressure sensor, temperature sensor and Smoke Sensor.
Advantage and the good effect that the utlity model has are: can receive in the improper external impacts situation in battery pack; battery management system receives signal; and cut gate-controlled switch; a plurality of battery module moment separates; every section voltage is less than protecting human body voltage; in the situation of avoiding battery pack to expose human body is damaged, also greatly reduce the probability that short circuit causes fire hazard simultaneously.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Among the figure:
1, battery management system 2, battery module 3, gate-controlled switch
4, signal transducer
Embodiment
As shown in Figure 1,
A kind of new type lithium ion automobile batteries module protection circuit that applies to the electric bus of 500V voltage of the utility model, comprise the battery pack that is in series by a plurality of battery modules 2 and it is discharged and recharged the battery management system 1 of control, gate-controlled switch 3 of series connection between per eight battery modules 2, described gate-controlled switch 3 also is connected with signal transducer 4 by battery management system 1 control in the described battery management system 1; Described gate-controlled switch 3 is N channel enhancement metal-oxide-semiconductor; Described signal transducer 4 pressure sensors, temperature sensor and Smoke Sensor.
The course of work of this example:
The automobile batteries group is when being subject to outside improper external impacts, signal transducer 4 detects signal and sends to battery management system 1, the control metal-oxide-semiconductor was closed after battery management system 1 was confirmed, thereby the automobile batteries group is switched to single string or multi-string battery module 2, voltage is less than 36V, or is under the safe voltage, after the attendant confirms, just can again recover to reset, improve greatly its security performance; In order to guarantee under any circumstance all to play a protective role, can be set as normally open to gate-controlled switch 3, very fast when Accidental occurrence, or battery management system 1 is also damaged, in the time of may having little time gate-controlled switch 3 disconnected, still can separate battery module 2.
When the electric bus automobile batteries group that applies to 500V voltage, a gate-controlled switch 3 can be installed between per eight battery modules 2; To the small-sized electric truck system of 200V, we can install a gate-controlled switch 3 between per two battery modules 2.
More than an embodiment of the present utility model is had been described in detail, but described content only is preferred embodiment of the present utility model, can not be considered to be used to limiting practical range of the present utility model.All equalizations of doing according to the utility model application range change and improve etc., all should still belong within the patent covering scope of the present utility model.
Claims (5)
1. new type lithium ion automobile batteries module protection circuit comprises the battery pack that is in series by a plurality of battery modules (2) and to its battery management system (1) that discharges and recharges control, it is characterized in that:
A series connection gate-controlled switch (3) between every two or more battery module (2), described gate-controlled switch (3) is controlled by battery management system (1).
2. new type lithium ion automobile batteries module protection circuit according to claim 1, it is characterized in that: described gate-controlled switch (3) is metal-oxide-semiconductor or relay or triode.
3. new type lithium ion automobile batteries module protection circuit according to claim 2, it is characterized in that: described metal-oxide-semiconductor is N channel enhancement metal-oxide-semiconductor.
4. new type lithium ion automobile batteries module protection circuit according to claim 1 is characterized in that: also be connected with signal transducer (4) in the described battery management system (1).
5. new type lithium ion automobile batteries module protection circuit according to claim 4, it is characterized in that: described signal transducer (4) comprises pressure sensor, temperature sensor and Smoke Sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220319912 CN202737506U (en) | 2012-07-04 | 2012-07-04 | Novel automobile lithium-ion battery module protecting circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220319912 CN202737506U (en) | 2012-07-04 | 2012-07-04 | Novel automobile lithium-ion battery module protecting circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202737506U true CN202737506U (en) | 2013-02-13 |
Family
ID=47663167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220319912 Expired - Fee Related CN202737506U (en) | 2012-07-04 | 2012-07-04 | Novel automobile lithium-ion battery module protecting circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202737506U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105932344A (en) * | 2016-05-13 | 2016-09-07 | 浙江安美科技有限公司 | Cascadable power battery pack safety protection module |
-
2012
- 2012-07-04 CN CN 201220319912 patent/CN202737506U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105932344A (en) * | 2016-05-13 | 2016-09-07 | 浙江安美科技有限公司 | Cascadable power battery pack safety protection module |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20150103448A1 (en) | Battery Management System, Motor Vehicle and Battery Module | |
| WO2007095067A3 (en) | Fuel cell based rechargable power pack system and associated methods for controlling same | |
| CN203225576U (en) | Double-channel initiating explosive device igniting circuit | |
| CN105811495A (en) | Safety protection apparatus of vehicular lithium battery | |
| CN105790370A (en) | High and low voltage interlocking device and method of using device for realizing power on and power off | |
| WO2011159112A3 (en) | Safety component by fuse at high voltage battery sensing line | |
| CN103825253B (en) | Battery of electric vehicle safety control and control method | |
| CN103580106B (en) | Battery module, battery management system, drive device electric power system and motor vehicle | |
| CN103296322A (en) | Battery pack for a vehicle | |
| CN104064827A (en) | Nickel-metal hydride battery pack with safety protection system | |
| CN201800559U (en) | Electric vehicle power source safety protection device | |
| CN104025369B (en) | Battery system and motor vehicle | |
| CN202794479U (en) | Failure on-line detection circuit of passive equalization circuit | |
| CN109155388A (en) | Battery protecting apparatus | |
| CN202737506U (en) | Novel automobile lithium-ion battery module protecting circuit | |
| CN104466917A (en) | Electric vehicle lithium battery management system | |
| CN204243735U (en) | A kind of lithium battery management system for electric car | |
| US9160163B2 (en) | Battery management system, motor vehicle and battery system | |
| CN104578260A (en) | Control device for electric vehicle | |
| CN201616686U (en) | Power battery pack with short-circuit protection device | |
| CN106229570A (en) | A kind of double cell handoff-security control system and method for handover control thereof | |
| CN201975450U (en) | Multi-parallel-connection multi-serial-connection lithium ion battery pack protecting device | |
| CN205149546U (en) | Electric automobile high -pressure control and protection system | |
| CN104108315A (en) | Electric automobile battery safety protection system and method | |
| CN208461516U (en) | A kind of vehicle-mounted polarity automatic transfer equipment of intelligent track electric car |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130213 Termination date: 20160704 |