CN209691891U - A kind of module balancer of cascade utilization battery - Google Patents
A kind of module balancer of cascade utilization battery Download PDFInfo
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- CN209691891U CN209691891U CN201920249847.1U CN201920249847U CN209691891U CN 209691891 U CN209691891 U CN 209691891U CN 201920249847 U CN201920249847 U CN 201920249847U CN 209691891 U CN209691891 U CN 209691891U
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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 provides a kind of module balancer of cascade utilization battery, charging/discharging apparatus is generally used to carry out voltage adjustment to each module for current traditional technology, the problem of battery consistency difference after standing, the utility model are composed in series the cathode that cathode water conservancy diversion harness is connected to each battery module with negative lead beam, switch relay and 200 Ω resistance；Positive lead beam, switch relay and 200 Ω resistance are composed in series the anode that positive water conservancy diversion harness is connected to each battery module；All cathode water conservancy diversion harness are connected on cathode copper bar, and all positive water conservancy diversion harness are connected on positive copper bar；The n- positive relay and negative-negative relay of all modules are closed by control circuit, the anode of all modules is set to be connected with anode, cathode is connected with cathode, the high module of the voltage module charging low to voltage at this time, realize the high module voltage decline of voltage, the low module voltage of voltage rises, and it is consistent to be finally reached voltage.
Description
Technical field
The utility model belongs to newly energy automobile power cell field, and in particular to a kind of cascade utilization battery module equilibrium dress
It sets.
Background technique
Extensive with electric car is popularized, and the processing after batteries of electric automobile is retired is also more important.Typically now
The battery of SOH80% can from electric car it is retired, to the termination of battery life, there are also many spaces.The step of battery
Using be exactly carry out energy storage or other respective battery products using the retired battery of electric car apply work.
The retired battery of electric car, since the use state of each consumer is inconsistent, and the retired SOC to get off of battery
It is also different with voltage, thus needed before cascade utilization the modules voltage of retired battery is consistent with SOC adjustment, and
The voltage of inside modules is set also to reach consistent state using the equalizing circuit of inside battery.
Traditional technology generally uses charging/discharging apparatus to carry out voltage adjustment, so not only wasting space to each module, but also
Very big electric energy can be consumed, finally due to the polarization of battery, the battery after standing there may also be the deviation of consistency.
In the implementation of the present invention, inventor has found that the prior art at least has the disadvantage in that
1, the SOC and voltage that retired battery module is adjusted by charging/discharging apparatus, need charge and discharge simultaneously to same voltage
Value occupies device channels, time length, consumption electric energy；
2, due to the polarization of battery, the internal resistance state of each battery is inconsistent, even if surface SOC value is adjusted to phase
Together, it may also be changed after a period of time；
3, complicated for operation.
Summary of the invention
To solve the above-mentioned problems, the utility model provides a kind of module balancer of cascade utilization battery, mainly
It include: negative lead beam 2, positive lead beam, switch relay 3,200 Ω resistance 4, cathode copper bar 5, positive copper bar 6, electricity
Pressure sampling line 8 and low-voltage control circuit 9；
Negative lead beam 2, the Ω of switch relay 3 and 200 resistance 4 are composed in series cathode water conservancy diversion harness and are connected to respectively
The cathode of a battery module 1；Positive lead beam, the Ω of switch relay 3 and 200 resistance 4 are composed in series positive water conservancy diversion harness and connect
Connect the anode in each battery module 1；All cathode water conservancy diversion harness are connected on cathode copper bar 5, all positive water conservancy diversion harness
It is connected on positive copper bar 6；Positive and negative anodes on each battery module 1 pass through voltage sample line 8 respectively and are connected to low voltage control electricity
On road 9；The switch of switch relay 3 is controlled by low-voltage control circuit 9；Each battery module 1 is by electric power connection line 7, through low
Pressure control circuit 9 is connected to 12V power supply.
Preferably, the quantity of battery module 1 is 4 ~ 12 in the device.
The principle of the present invention are as follows: the SOC and voltage of multiple battery modules 1 are inconsistent, set it as modules A/B/C/D, lead to
Control switch relay 3 is crossed, the anode between battery module 1 is made to be connected with anode, cathode with cathode by the resistance of two 200 Ω
It connects, achievees the effect that the module charging low for potential by resistance of the high module of potential, due to having resistance connection, charging current
Small, by prolonged balanced, last intermodule voltage reaches consistent.Electric voltage equalization in mould group relies on the prior art, i.e. mould
Equalizing circuit in group is completed, and is provided 12V power supply and equalizing signal to battery modules by the present apparatus, is made complete in battery modules
At equilibrium.
The strategy of intermodule equilibrium is closed the n- positive relay and negative-negative relay of all modules by control circuit, makes
The anode of all modules is connected with anode, and cathode is connected with cathode, and the high module of the voltage module low to voltage is filled at this time
Electricity realizes the high module voltage decline of voltage, and the low module voltage of voltage rises, and it is consistent to be finally reached voltage, each module voltage
It is monitored by control circuit and is shown.
The utility model has the advantages that
Using the voltage difference between battery module, making battery module to the mode of cathode to anode, cathode using anode mutually
It mutually charges, due to there is resistance, so electric current is little, battery life is influenced small；12V power supply is provided, using in battery module
Equalizing signal realizes the equilibrium inside battery module；It takes up little area, does not consume external electric energy, is easy to operate, being not take up experiment and set
Standby, price is low.
Detailed description of the invention
Fig. 1 is a kind of cascade utilization battery module balancing device structural schematic diagram of the utility model；
Specific embodiment
Technical solutions of the utility model are described in detail below in conjunction with the accompanying drawings and the specific embodiments.
A kind of module balancer of cascade utilization battery, specifically includes that negative lead beam 2, positive lead beam, opens
Close relay 3,200 Ω resistance 4, cathode copper bar 5, positive copper bar 6, voltage sample line 8 and low-voltage control circuit 9；
Negative lead beam 2, the Ω of switch relay 3 and 200 resistance 4 are composed in series cathode water conservancy diversion harness and are connected to respectively
The cathode of a battery module 1；Positive lead beam, the Ω of switch relay 3 and 200 resistance 4 are composed in series positive water conservancy diversion harness and connect
Connect the anode in each battery module 1；All cathode water conservancy diversion harness are connected on cathode copper bar 5, all positive water conservancy diversion harness
It is connected on positive copper bar 6；Positive and negative anodes on each battery module 1 pass through voltage sample line 8 respectively and are connected to low voltage control electricity
On road 9；The switch of switch relay 3 is controlled by low-voltage control circuit 9；Each battery module 1 is by electric power connection line 7, through low
Pressure control circuit 9 is connected to 12V power supply.
Existing 4 modules A/B/C/D need equilibrium in the present embodiment, and voltage is respectively 44V, 42V, 35V, 33V, due to
The SOC range of battery pack, half voltage difference do not exceed 15V, then 15V/400 Ω=0.0375A, electric current very little.
Battery module is connected in the way of Fig. 1, each relay is off-state at this time.
It by control circuit detection module voltage, and shows, is closed the relay of all battery modules at this time, realize battery mould
N- positive and negative-negative connection between block.
Modules A charges to B, C, D at this time, and module B charges to C, D, so recycles, and final all modules reach voltage arithmetic
Average value, (A+B+C+D)/4=38.5V, since resistance can consume part energy, final module voltage value can be more slightly lower than 38.5.
Each module connects 12V power supply simultaneously, and starting module internal balance device realizes inside modules balanced.
Balanced 4 modules simultaneously in the present embodiment, it is balanced simultaneously can to extend to 12 modules according to same principle.
The above is a preferred embodiment of the present invention, it is noted that for those skilled in the art
For, without departing from the principles of the present invention, several improvements and modifications can also be made, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (2)
1. a kind of module balancer of cascade utilization battery, which is characterized in that the device mainly includes: negative lead beam
(2), positive lead beam, switch relay (3), 200 Ω resistance (4), cathode copper bar (5), positive copper bar (6), voltage sample
Line (8) and low-voltage control circuit (9)；
Negative lead beam (2), switch relay (3) and 200 Ω resistance (4) are composed in series cathode water conservancy diversion harness and are connected to
The cathode of each battery module (1)；Positive lead beam, switch relay (3) and 200 Ω resistance (4) are composed in series anode and lead
Streamline beam is connected to the anode of each battery module (1)；All cathode water conservancy diversion harness are connected on cathode copper bar (5), all
Positive water conservancy diversion harness is connected on positive copper bar (6)；Positive and negative anodes on each battery module (1) pass through voltage sample line respectively
(8) it is connected on low-voltage control circuit (9)；The switch of switch relay (3) is controlled by low-voltage control circuit (9)；Each battery
Module (1) is connected to 12V power supply through low-voltage control circuit (9) by electric power connection line (7).
2. the module balancer of cascade utilization battery according to claim 1, which is characterized in that battery mould in the device
The quantity of block (1) is 4 ~ 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920249847.1U CN209691891U (en) | 2019-02-27 | 2019-02-27 | A kind of module balancer of cascade utilization battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920249847.1U CN209691891U (en) | 2019-02-27 | 2019-02-27 | A kind of module balancer of cascade utilization battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209691891U true CN209691891U (en) | 2019-11-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920249847.1U Active CN209691891U (en) | 2019-02-27 | 2019-02-27 | A kind of module balancer of cascade utilization battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209691891U (en) |
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2019
- 2019-02-27 CN CN201920249847.1U patent/CN209691891U/en active Active
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