CN218456326U - Active equalization circuit for energy storage lithium battery - Google Patents
Active equalization circuit for energy storage lithium battery Download PDFInfo
- Publication number
- CN218456326U CN218456326U CN202221589549.5U CN202221589549U CN218456326U CN 218456326 U CN218456326 U CN 218456326U CN 202221589549 U CN202221589549 U CN 202221589549U CN 218456326 U CN218456326 U CN 218456326U
- Authority
- CN
- China
- Prior art keywords
- battery
- unit
- output end
- energy storage
- output
- 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.)
- Active
Links
Images
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model relates to an energy storage is initiative equalizer circuit for lithium cell, including the group battery, the main control unit, equalizer circuit unit, power module, battery monitoring unit, safety control unit and auxiliary power source, group battery and equalizer circuit unit interconnect, the output of group battery is connected with the input of main control unit, main control unit's output is connected with equalizer circuit unit's input, the output of group battery is connected with battery monitoring unit, and be connected between the power module in battery monitoring unit and the main control unit, the output of group battery is connected with auxiliary power source. Has the advantages that: energy is stored through the flyback transformer in the active equalization process, lossless energy transfer between the energy storage capacitor and the battery pack is achieved, a complex energy transfer switch group is not needed to transfer energy between the single batteries, a rapid charging technology and an equalizing charging technology are achieved, and the whole system is stable and safe in design.
Description
Technical Field
The utility model relates to an energy storage lithium cell technical field that is relevant particularly, relates to an energy storage lithium cell is with initiative equalizer circuit.
Background
At present, along with electric automobile's rapid development, battery management system more and more becomes the focus that people paid attention to, because every lithium cell inevitably has the difference on the physical characteristic in the production process, perhaps the interference of other external conditions all can make the uneven problem of the condition that a large amount of lithium cell group used appear, finally lead to the reduction of lithium cell group utilization ratio, and then influence the life of every lithium cell, can burn out the lithium cell group even, the major accident that destroys whole battery management system appears.
The lithium battery generally has the characteristics of high specific energy, high specific power, less self-discharge, wide working temperature range, capability of quick charge, long service life and the like, but the balance control circuit achieves a balance effect by releasing redundant energy, which can cause unnecessary waste of energy and reduce the utilization rate of a battery pack, and the active balance circuit for the energy storage lithium battery is provided aiming at the phenomena.
Disclosure of Invention
An object of the utility model is to provide an energy storage is initiative equalizer circuit for lithium cell to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an energy storage lithium cell is with initiative equalizer circuit, including group battery, main control unit, equalizer circuit unit, power module, battery monitoring unit, safety control unit and auxiliary power source, the group battery with equalizer circuit unit interconnect, the output of group battery with main control unit's input is connected, main control unit's output with equalizer circuit unit's input is connected, the output of group battery is connected with battery monitoring unit, and battery monitoring unit with in the main control unit connect between the power module, the output of group battery is connected with auxiliary power source, the output of group battery is connected to data acquisition unit's input, the output of group battery still is connected to safety control unit's input, safety control unit's output is connected with fault detection, main control unit is inside including power module, battery management chip, exclusive-OR gate processing circuit and single chip microcomputer controller, equalizer circuit unit has change over switch group, flyback transformer, energy storage capacitor and relay.
Further, the output end of the data acquisition unit is connected to the input end of state calculation and energy management, and the output end of the state calculation and energy management is connected to the battery monitoring unit.
Furthermore, the output end of the power supply module is connected to the battery management chip, the output end of the battery management chip is connected to the exclusive or gate processing circuit, and the output end of the exclusive or gate processing circuit is connected to the single chip microcomputer controller.
Further, the output end of the single chip microcomputer controller is connected to the input end of the capacity change-over switch group.
Furthermore, the output end of the capacity switch group is connected to the flyback transformer, the output end of the flyback transformer is connected to the energy storage capacitor, and the output end of the energy storage capacitor is connected to the relay.
Further, the output terminal of the relay is connected to charge/discharge.
Furthermore, the auxiliary power source is connected with a man-machine interface, a communication function and a lighting device through an auxiliary device.
Compared with the prior art, the utility model discloses following beneficial effect has: energy is stored through the flyback transformer in the active equalization process, so that lossless energy transfer between the energy storage capacitor and the battery pack is realized, and the battery pack transfers energy to a specific single battery; compared with the traditional active equalization control circuit, the active and passive hybrid equalization circuit of the battery pack does not need a complex energy transfer switch group to transfer energy between the single batteries, realizes a quick charging technology and an equalizing charging technology, and has stable and safe design of the whole system.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic flow chart of a structure of an active equalization circuit for an energy storage lithium battery according to the present invention;
reference numerals:
1. a battery pack; 2. a main control unit; 21. a power supply module; 22. a battery management chip; 23. an exclusive-or gate processing circuit; 24. a single chip controller; 3. an equalizing circuit unit; 31. a capability changeover switch group; 32. a flyback transformer; 33. an energy storage capacitor; 34. a relay; 35. charging/discharging; 4. a battery monitoring unit; 41. a data acquisition unit; 42. state calculation and energy management; 5. a security management unit; 51. detecting faults; 6. an auxiliary power source; 61. an auxiliary device; 62. a human-machine interface; 63. a communication function; 64. an illumination device.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.
In the description of the present invention, it should be noted that the terms "top", "bottom", "one side", "the other side", "front", "back", "middle part", "inside", "top", "bottom", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of description and simplification of the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly and encompass, for example, both fixed and removable coupling as well as integral coupling; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Please refer to fig. 1, according to the utility model discloses an active equalizer circuit for energy storage lithium battery, including group battery 1, main control unit 2, equalizer circuit unit 3, power module 21, battery monitoring unit 4, safety management unit 5 and auxiliary power source 6, group battery 1 and equalizer circuit unit 3 interconnect, group battery 1's output is connected with main control unit 2's input, main control unit 2's output is connected with equalizer circuit unit 3's input, group battery 1's output is connected with battery monitoring unit 4, and be connected between the power module 21 in battery monitoring unit 4 and the main control unit 2, group battery 1's output is connected with auxiliary power source 6, group battery 1's output is connected to data acquisition unit's input, group battery 1's output still is connected to safety management unit 5's input, safety management unit 5's output is connected with fault detection 51, main control unit 2 is inside including power module 21, battery management chip 22, exclusive or gate processing circuit 23 and singlechip controller 24, equalizer circuit unit 3 has the ability change over switch group 31 including, flyback transformer 32, energy storage capacitor 33 and relay 34.
Wherein the output of the data acquisition unit 41 is connected to the input of the state calculation and energy management 42 and the output of the state calculation and energy management 42 is connected to the battery monitoring unit 4.
The output end of the power module 21 is connected to the battery management chip 22, the output end of the battery management chip 22 is connected to the xor gate processing circuit 23, and the output end of the xor gate processing circuit 23 is connected to the single chip microcomputer controller 24.
Wherein, the output end of the single chip controller 24 is connected to the input end of the capability switch group 31.
The output end of the capacity switch group 31 is connected to the flyback transformer 32, the output end of the flyback transformer 32 is connected to the energy storage capacitor 33, and the output end of the energy storage capacitor 33 is connected to the relay 34.
Wherein the output of the relay 34 is connected to the charge/discharge 35.
The assist power source 6 is connected to a human-machine interface 62, a communication function 63, and a lighting device 64 via an assist device 61.
Principle of operation
Through the technical scheme of the utility model, the active equalization circuit for the energy storage lithium battery stores energy through the flyback transformer in the active equalization process in the using process, so that lossless energy transmission between the energy storage capacitor and the battery pack is realized, and the battery pack transmits energy to the specific single battery; compared with the traditional active equalization control circuit, the active and passive hybrid equalization circuit of the battery pack does not need a complex energy transfer switch group to transfer energy between the single batteries, realizes a quick charging technology and an equalizing charging technology, and is stable and safe in the design of the whole system.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. An active equalization circuit for an energy storage lithium battery comprises a battery pack (1), a main control unit (2), an equalization circuit unit (3), a power module (21), a battery monitoring unit (4), a safety management unit (5) and an auxiliary power source (6), and is characterized in that the battery pack (1) and the equalization circuit unit (3) are connected with each other, the output end of the battery pack (1) is connected with the input end of the main control unit (2), the output end of the main control unit (2) is connected with the input end of the equalization circuit unit (3), the output end of the battery pack (1) is connected with the battery monitoring unit (4), the battery monitoring unit (4) is connected with the power module (21) in the main control unit (2), the output end of the battery pack (1) is connected with the auxiliary power source (6), the output end of the battery pack (1) is connected to the input end of a data acquisition unit, the output end of the battery pack (1) is further connected to the input end of the safety management unit (5), the output end of the safety management unit (5) is connected with a fault detection (51), the internal management unit (2) comprises a fault management module (21), a single chip (23), a fault processing chip (or a single chip) and a single chip (24), the equalizing circuit unit (3) comprises a switch group (31), a flyback transformer (32), an energy storage capacitor (33) and a relay (34).
2. Active equalizing circuit for energy-storing lithium batteries according to claim 1, characterized in that the output of the data acquisition unit (41) is connected to the input of a state calculation and energy management (42), and the output of the state calculation and energy management (42) is connected to the battery monitoring unit (4).
3. The active equalization circuit for the energy storage lithium battery as claimed in claim 1, wherein the output end of the power module (21) is connected to the battery management chip (22), the output end of the battery management chip (22) is connected to the exclusive or gate processing circuit (23), and the output end of the exclusive or gate processing circuit (23) is connected to the single chip controller (24).
4. The active equalization circuit for a lithium energy storage battery as claimed in claim 1, characterized in that the output of the monolithic controller (24) is connected to the input of the capacity switcher group (31).
5. The active equalization circuit for the energy storage lithium battery as claimed in claim 1, wherein the output end of the capacity switch group (31) is connected to the flyback transformer (32), the output end of the flyback transformer (32) is connected to the energy storage capacitor (33), and the output end of the energy storage capacitor (33) is connected to the relay (34).
6. Active equalizing circuit for lithium energy storage batteries according to claim 1, characterized in that the output of the relay (34) is connected to the charge/discharge (35).
7. The active equalization circuit for a lithium energy storage battery as claimed in claim 1, characterized in that the auxiliary power source (6) is connected with a man-machine interface (62), a communication function (63) and a lighting device (64) via an auxiliary device (61).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221589549.5U CN218456326U (en) | 2022-06-24 | 2022-06-24 | Active equalization circuit for energy storage lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221589549.5U CN218456326U (en) | 2022-06-24 | 2022-06-24 | Active equalization circuit for energy storage lithium battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218456326U true CN218456326U (en) | 2023-02-07 |
Family
ID=85121320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221589549.5U Active CN218456326U (en) | 2022-06-24 | 2022-06-24 | Active equalization circuit for energy storage lithium battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218456326U (en) |
-
2022
- 2022-06-24 CN CN202221589549.5U patent/CN218456326U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110293880B (en) | Electric vehicle power acquisition and balance management method | |
| CN108016309A (en) | A kind of battery management system for improving battery durable | |
| CN202363924U (en) | Multifunctional power supply management system | |
| CN108242842B (en) | Management device and method for parallel connection of different types of storage battery packs | |
| CN111361420A (en) | Power battery system and electric automobile | |
| CN116169753A (en) | Distributed energy storage battery management system | |
| CN108032745A (en) | A kind of battery management system suitable for low-temperature working | |
| CN202712352U (en) | Intelligent combined lithium ion battery | |
| CN218456326U (en) | Active equalization circuit for energy storage lithium battery | |
| CN205388998U (en) | Nickel -hydrogen battery management system | |
| CN112072734A (en) | Equalization system and method for liquid metal battery pack | |
| CN219086832U (en) | Intelligent power exchange management system of electric ship | |
| CN104052116A (en) | Uninterrupted power system for lithium ion battery | |
| CN202260560U (en) | Machine-mounted lithium battery charger | |
| CN202435066U (en) | Lithium-ion battery pack management system with two-way current limiting function | |
| CN108777498B (en) | Super capacitor charging device with intelligent rapid equalization function | |
| CN203787975U (en) | Equalization and management system for vehicle-mounted power lithium battery | |
| CN112952992A (en) | Composite power supply control system of fuel cell | |
| CN103311561A (en) | Apparatus and method for preparing high-capacity battery pack through parallel connection of low-capacity batteries | |
| CN207173331U (en) | A kind of energy-storage system utilized based on electrokinetic cell bag echelon | |
| CN112165130A (en) | Servo power supply with independently controllable charging and discharging and implementation method thereof | |
| CN221126036U (en) | Household battery system with ultra-long service life | |
| CN211455886U (en) | Dual-mode communication type lithium battery pack management system | |
| CN219535692U (en) | Electric energy storage bag combining super capacitor and battery pack | |
| CN216623187U (en) | Single bus communication battery management circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: Room 207, Unit 1, Building 1, No. 5, R&D Second Road, Songshan Lake Park, Dongguan, Guangdong 523000 Patentee after: Huayang Smart Energy Technology (Guangdong) Co.,Ltd. Address before: Room 402, Building 2, No. 100 Workshop, Changping Section, Dongshen Road, Changping Town, Dongguan City, Guangdong Province, 523000 Patentee before: Guangdong Shanke Intelligent Technology Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230801 Address after: No. 4, 1st Street, Shujiu Park, Changping Town, Dongguan, Guangdong 523000 Patentee after: Dongguan Tiandepu Energy Storage Technology Co.,Ltd. Address before: Room 207, Unit 1, Building 1, No. 5, R&D Second Road, Songshan Lake Park, Dongguan, Guangdong 523000 Patentee before: Huayang Smart Energy Technology (Guangdong) Co.,Ltd. |