CN209963831U - Dual-power BMS management system for electric vehicle - Google Patents
Dual-power BMS management system for electric vehicle Download PDFInfo
- Publication number
- CN209963831U CN209963831U CN201921093981.3U CN201921093981U CN209963831U CN 209963831 U CN209963831 U CN 209963831U CN 201921093981 U CN201921093981 U CN 201921093981U CN 209963831 U CN209963831 U CN 209963831U
- Authority
- CN
- China
- Prior art keywords
- mos tube
- battery pack
- electrically connected
- battery
- management system
- 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
Landscapes
- Secondary Cells (AREA)
Abstract
The utility model relates to a power BMS management system field, and discloses a dual power BMS management system of electric vehicle, which comprises a first battery pack, a second battery pack and a first Mos tube, wherein one end of the first Mos tube is electrically connected with the negative electrode of the first battery pack, and the other end is electrically connected with one end of the second Mos tube; the dual-power BMS management system of the electric vehicle further comprises a third Mos tube, wherein one end of the third Mos tube is electrically connected with the cathode of the second battery pack, and the other end of the third Mos tube is electrically connected with one end of a fourth Mos tube; the dual-power BMS management system of the electric vehicle further comprises a controller, one end of the controller is electrically connected with the other end of the second Mos tube and the other end of the fourth Mos tube respectively, the other end of the controller is electrically connected with the anode of a second battery pack, and the anode of the second battery pack is electrically connected with the anode of the first battery pack; the utility model discloses no group battery switches level and smooth, and no normal group battery outage, short circuit risk, Mos pipe safety are difficult for burning out, need not additionally to increase parallel controller, reduce the cost, also solve the battery reverse charging problem simultaneously.
Description
Technical Field
The utility model relates to a power BMS management system field specifically is an electric motor car dual supply BMS management system.
Background
An electric bicycle is a mechatronic personal transportation tool which takes a storage battery as auxiliary energy and is provided with an electric motor, a controller, the storage battery, a rotating handle brake handle and other operating components and a display instrument system on the basis of a common bicycle. The existing electric vehicle generally uses a lithium battery as a battery pack, and part of the electric vehicle uses two or even a plurality of groups of power supplies to ensure the cruising ability of the electric vehicle.
The existing battery pack replacement management mode is usually a BMS (battery management system), namely a lithium battery management mode. When the battery pack is switched, the requirements on switching time and opportunity are strict, the MoS tube serving as a switch is easily burnt due to overload, and a battery is easily reversely charged. Meanwhile, in a circuit for connecting the anode and the cathode of the power supply, a parallel controller is generally required, and the cost is increased.
Disclosure of Invention
Technical problem to be solved
Not enough to prior art, the utility model provides an electric motor car dual supply BMS management system, the group battery switches level and smooth, nos normal group battery outage, short circuit risk, and Mos pipe safety is difficult for burning out, need not additionally to increase parallel controller, reduces the cost, also solves the battery reverse charging problem simultaneously.
(II) technical scheme
In order to achieve the above object, the utility model provides a following technical scheme: a dual-power BMS management system of an electric vehicle comprises a first battery pack, a second battery pack and a first Mos tube, wherein one end of the first Mos tube is electrically connected with the cathode of the first battery pack, and the other end of the first Mos tube is electrically connected with one end of the second Mos tube; the dual-power BMS management system of the electric vehicle further comprises a third Mos tube, wherein one end of the third Mos tube is electrically connected with the cathode of the second battery pack, and the other end of the third Mos tube is electrically connected with one end of a fourth Mos tube; the dual-power BMS management system of the electric vehicle further comprises a controller, one end of the controller is electrically connected with the other end of the second Mos tube and the other end of the fourth Mos tube respectively, the other end of the controller is electrically connected with the anode of the second battery pack, and the anode of the second battery pack is electrically connected with the anode of the first battery pack.
Preferably, the first battery pack is formed by connecting a plurality of batteries in series.
Preferably, the second battery pack is formed by connecting a plurality of batteries in series.
Preferably, the battery is a lithium battery.
(III) principle of operation
The current flows from the positive electrodes of the first battery pack and the second battery pack to the negative electrode to form a complete closed loop; when the group A battery needs to work, the third Mos tube and the fourth Mos tube are in a closed state, and the first Mos tube and the second Mos tube are opened; when the electric quantity of the first battery pack battery is insufficient, if only 10% of electric quantity is left, switching to a second battery pack battery is needed, the controller controls the second battery pack battery to be closed first, and the second Mos tube is equivalent to a group of diodes at the moment; the first battery pack battery is still in working power supply, and meanwhile, the third Mos tube is opened, so that the first battery pack and the second battery pack participate in power supply together.
When the first Mos tube is closed, the first battery pack stops supplying power, the second battery pack continues to supply power, and the third Mos tube is equivalent to a group of diodes; opening the fourth Mos tube, and then starting full power supply of the second battery pack at the moment, wherein the power reaches the maximum; on the contrary, if the electric quantity of the second battery pack is insufficient, the first battery pack needs to be switched, and the power supply battery pack is switched in a mode of closing the fourth Mos tube, opening the first Mos tube, closing the third Mos tube and then opening the second Mos tube.
(IV) advantageous effects
Compared with the prior art, the utility model provides an electric motor car dual supply BMS management system possesses following beneficial effect:
the utility model has smooth battery pack switching, no normal battery pack power-off and short circuit risk, and the Mos tube is safe and not easy to burn out; the utility model discloses solve the battery problem of charging backward, the utility model discloses between the battery positive pole of first group battery, second group battery and the controller, need not additionally to increase parallel controller, reduce the cost.
Drawings
Fig. 1 is a circuit diagram of the present invention.
The device comprises a first Mos tube 1, a second Mos tube 2, a third Mos tube 3, a fourth Mos tube 4, a controller 5, a first battery pack anode 6, a first battery pack cathode 7, a second battery pack anode 8 and a second battery pack cathode 9.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
According to fig. 1, a dual power BMS management system for an electric vehicle comprises a first battery pack, a second battery pack, and a first Mos tube 1, wherein one end of the first Mos tube 1 is electrically connected to a negative electrode 7 of the first battery pack, and the other end is electrically connected to one end of a second Mos tube 2; the dual-power BMS management system of the electric vehicle further comprises a third Mos tube 3, one end of the third Mos tube is electrically connected with the cathode 9 of the second battery pack, and the other end of the third Mos tube is electrically connected with one end of a fourth Mos tube 4; the dual-power BMS management system of the electric vehicle further comprises a controller 5, wherein one end of the controller is electrically connected with the other end of the second Mos tube 2 and the other end of the fourth Mos tube 4 respectively, the other end of the controller is electrically connected with a second battery pack anode 8, and the second battery pack anode 8 is electrically connected with a first battery pack anode 6.
Preferably, the first battery pack is formed by connecting a plurality of batteries in series, the second battery pack is formed by connecting a plurality of batteries in series, and the batteries are lithium batteries.
In conclusion, the battery pack of the utility model is smooth in switching, has no normal power failure and short circuit risk, and the Mos tube is safe and not easy to burn out; the utility model discloses solve the battery problem of charging backward, the utility model discloses between the battery positive pole of first group battery, second group battery and the controller, need not additionally to increase parallel controller, reduce the cost.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides an electric motor car dual supply BMS management system, includes first group battery, second group battery, its characterized in that:
one end of the first Mos tube is electrically connected with the cathode of the first battery pack, and the other end of the first Mos tube is electrically connected with one end of the second Mos tube;
one end of the third Mos tube is electrically connected with the cathode of the second battery pack, and the other end of the third Mos tube is electrically connected with one end of the fourth Mos tube;
and one end of the controller is electrically connected with the other end of the second Mos tube and the other end of the fourth Mos tube respectively, the other end of the controller is electrically connected with the anode of the second battery pack, and the anode of the second battery pack is electrically connected with the anode of the first battery pack.
2. The dual-power BMS management system for the electric vehicle as set forth in claim 1, wherein: the first battery pack is formed by connecting a plurality of batteries in series.
3. The dual-power BMS management system for the electric vehicle as set forth in claim 1, wherein: the second battery pack is formed by connecting a plurality of batteries in series.
4. The dual-power BMS management system for the electric vehicle as set forth in claim 2 or 3, wherein: the battery is a lithium battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921093981.3U CN209963831U (en) | 2019-07-13 | 2019-07-13 | Dual-power BMS management system for electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921093981.3U CN209963831U (en) | 2019-07-13 | 2019-07-13 | Dual-power BMS management system for electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209963831U true CN209963831U (en) | 2020-01-17 |
Family
ID=69248497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921093981.3U Expired - Fee Related CN209963831U (en) | 2019-07-13 | 2019-07-13 | Dual-power BMS management system for electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209963831U (en) |
-
2019
- 2019-07-13 CN CN201921093981.3U patent/CN209963831U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109130891A (en) | Electric car multi-mode mixed energy storage system combined type topological structure and control method | |
| CN204068215U (en) | With the lithium battery of power-off protection | |
| CN203780389U (en) | Moveable emergency power supply vehicle | |
| CN103227487B (en) | Fuel cell/lithium ion battery hybrid power energy management system used for electric bicycle | |
| CN109768561A (en) | A kind of Control of Electric Vehicles method and system | |
| CN202374036U (en) | Controller circuit of stand-by power supply for electric vehicle | |
| KR102187107B1 (en) | Battery system for a battery-operated electric vehicle and method for utilizing a remaining range of same | |
| CN208570836U (en) | Under peak load shifting operating condition in communication base station multiple groups battery charge-discharge control system | |
| CN202405823U (en) | Battery pack in parallel charging and serial discharge and electrical appliance using same | |
| CN111682626A (en) | BMS battery management system and management method suitable for energy storage cabinet | |
| CN209056972U (en) | Nickel-metal hydride battery UPS control system | |
| CN203278379U (en) | Starting system of emergency power-generation vehicle | |
| CN108177540A (en) | A kind of hybrid power system and control method being easily changed | |
| CN102457101A (en) | Battery backup supply unit | |
| CN109720202A (en) | A kind of emergency start circuit when the low tension battery failure for electric car | |
| CN211320956U (en) | Charging and discharging circuit and charging and discharging system of online power supply | |
| CN209963831U (en) | Dual-power BMS management system for electric vehicle | |
| CN201594756U (en) | Battery repair instrument | |
| CN201406245Y (en) | Solar elevator | |
| CN206977128U (en) | The battery protection system of new energy | |
| CN201150006Y (en) | Charging-discharging device for lithium ion battery set | |
| CN115051430A (en) | Be applied to charge-discharge branch mouth protection circuit of lithium cell | |
| CN205945101U (en) | Modular super battery | |
| CN204652005U (en) | A kind of old and useless battery power collecting device | |
| CN113013963A (en) | Power supply control circuit with functions of automatic shutdown protection under battery undervoltage and automatic rechargeable activation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200117 Termination date: 20210713 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |