CN211957830U - Repair system of power lithium battery - Google Patents
Repair system of power lithium battery Download PDFInfo
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- CN211957830U CN211957830U CN202020792899.6U CN202020792899U CN211957830U CN 211957830 U CN211957830 U CN 211957830U CN 202020792899 U CN202020792899 U CN 202020792899U CN 211957830 U CN211957830 U CN 211957830U
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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
Abstract
The utility model provides a repair system of a power lithium battery, which comprises a lithium battery pack, a charging circuit, a discharging circuit, a battery detection module, a main control module charging equalization switch and a discharging equalization switch; each battery monomer in the lithium battery pack is correspondingly provided with a charging circuit and a discharging circuit, the charging circuit is disconnected and communicated with each battery monomer through a charging equalization switch, the discharging circuit is disconnected and communicated with each battery monomer through a discharging equalization switch, the charging circuit, the discharging circuit, the charging equalization switch and the discharging equalization switch are respectively connected with a main control module, the main control module is connected with a battery detection module, and the battery detection module is connected with each battery monomer in the lithium battery pack. The utility model discloses a for independent charging circuit and discharge circuit of each battery monomer configuration to can realize the free independent charge-discharge control of battery through charge equalization switch and the equalization switch that discharges, can save time when restoreing the battery, improved group battery performance and security performance simultaneously.
Description
Technical Field
The utility model belongs to the technical field of the battery repair, particularly, relate to a repair system of power lithium cell.
Background
The lithium battery is used as a power source, the performance of the battery pack is good, and whether maintenance measures are proper or not is an important factor for directly determining the service life and the use safety of the battery pack. Batteries are usually connected in series and in parallel to meet the requirements of voltage and energy storage capacity, and due to the fact that the internal structure and the working environment of the batteries are different, after the battery pack is used for a period of time, the state difference between single batteries gradually appears, the single batteries are under-charged, over-charged and over-discharged, the performance and the service life of the battery pack are affected, and potential safety hazards exist.
SUMMERY OF THE UTILITY MODEL
In order to solve the defects of the prior art, the utility model aims to provide a repair system of power lithium battery to overcome the defects in the prior art.
In order to achieve the purpose, the utility model provides a repair system of a power lithium battery, which comprises a lithium battery pack, a charging circuit, a discharging circuit, a battery detection module, a main control module charging equalization switch and a discharging equalization switch; each single battery in the lithium battery pack is correspondingly provided with a charging circuit and a discharging circuit, the charging circuit is disconnected and communicated with each single battery through a charging equalization switch so as to realize charging control of each single battery, the discharging circuit is disconnected and communicated with each single battery through a discharging equalization switch so as to realize discharging control of each single battery, and the charging circuit, the discharging circuit, the charging equalization switch and the discharging equalization switch are respectively electrically connected and in signal connection with the main control module so that the main control module outputs control signals to control the disconnection and the connection of the charging equalization switch and the discharging equalization switch and control the switching of the charging circuit and the discharging circuit; the main control module is electrically connected with the battery detection module and is in signal connection with each battery monomer in the lithium battery pack, so that the battery detection module detects the battery state of each battery monomer in the lithium battery pack and transmits the battery state to the main control module, and the main control module outputs different control signals to the charge equalization switch and the discharge equalization switch according to the battery state.
Through the technical scheme, each single battery in the lithium battery pack is provided with the independent charging circuit and the independent discharging circuit, and the independent charging control and the independent discharging control of the single battery can be realized through the charging equalizing switch and the discharging equalizing switch, so that the time can be saved when the battery is repaired, and the performance and the safety performance of the battery pack are improved.
As right the repair system of power lithium cell further explain, preferably, charging circuit includes precharge circuit and quick charge circuit, precharge circuit with quick charge circuit is connected with the host system electricity respectively and signal connection to make host system output control signal control precharge circuit carry out undercurrent charging to each battery monomer in the lithium cell group, perhaps control quick charge circuit to carry out the charging of heavy current constant voltage mode to each battery monomer in the lithium cell group.
Through the technical scheme, the switching between the low-current charging and the high-current constant-voltage mode charging of the lithium battery pack can be realized.
As right power lithium cell's repair system further explain, preferably, battery detection module includes temperature protection module, temperature protection module is connected and signal connection with the host system electricity, so that temperature protection module detects each free temperature of battery in the lithium cell group and transmits to host system, and when host system judged that the temperature exceeded the predetermined scope, host system controlled the balanced switch disconnection of charging in order to stop charging.
Through above-mentioned technical scheme, can in time stop charging when the temperature is too high, improve the safety of charging.
As a further explanation of the repair system for power lithium batteries of the present invention, preferably, the battery detection module includes a voltage detection module, the voltage detection module is electrically connected and signal-connected to the main control module, so that the voltage detection module detects the voltage of each battery cell in the lithium battery pack and transmits the voltage to the main control module, and when the main control module determines that the maximum voltage difference between the battery cells exceeds a preset range, the main control module controls the discharge equalization switch to be connected to start discharge and reduce the voltage; when the voltage detection module detects that the voltage of the battery monomer reaches the cut-off voltage, the main control module controls the discharge equalization switch to be switched off to stop discharging and reducing the voltage.
Through the technical scheme, the voltage of each battery in the lithium battery pack is controlled by detecting the voltage of each battery, so that the aim of repairing the lithium battery pack is fulfilled, and the performance of the lithium battery pack is improved.
The utility model has the advantages that: the utility model discloses a each battery monomer in the lithium cell group all disposes independent charging circuit and discharge circuit to can realize the free independent charge control of battery and discharge control through charge equalization switch and the equalization switch that discharges, can save time when restoreing the battery like this, improved group battery performance and security performance simultaneously.
Drawings
Fig. 1 is a schematic structural diagram of a repair system for a power lithium battery according to the present invention.
Detailed Description
In order to further understand the structure, characteristics and other objects of the present invention, the following detailed description is given with reference to the accompanying preferred embodiments, which are only used to illustrate the technical solution of the present invention and are not intended to limit the present invention.
First, please refer to fig. 1, fig. 1 is a schematic structural diagram of a repair system for a lithium battery according to the present invention. As shown in fig. 1, the repair system for a power lithium battery of the present invention includes a lithium battery pack 1, a charging circuit 2, a discharging circuit 3, a battery detection module 4, a main control module 5, a charging equalization switch 6 and a discharging equalization switch 7; each battery cell in the lithium battery pack 1 is correspondingly provided with a charging circuit 2 and a discharging circuit 3, the charging circuit 2 is disconnected and communicated with each battery cell through a charging equalization switch 6 to realize charging control of each battery cell, the discharging circuit 3 is disconnected and communicated with each battery cell through a discharging equalization switch 7 to realize discharging control of each battery cell, and the charging circuit 2, the discharging circuit 3, the charging equalization switch 6 and the discharging equalization switch 7 are respectively electrically and signal-connected with the main control module 5, so that the main control module 5 outputs control signals to control the disconnection and the communication of the charging equalization switch 6 and the discharging equalization switch 7 and control the switching of the charging circuit 2 and the discharging circuit 3; the main control module 5 is electrically connected and signal-connected with the battery detection module 4, the battery detection module 4 is electrically connected and signal-connected with each battery monomer in the lithium battery pack 1, so that the battery detection module 4 detects the battery state of each battery monomer in the lithium battery pack 1 and transmits the battery state to the main control module 5, and the main control module 5 outputs different control signals to the charge equalization switch 6 and the discharge equalization switch 7 according to the battery state.
According to the structure, each single battery in the lithium battery pack is provided with the independent charging circuit and the independent discharging circuit, and the independent charging control and the independent discharging control of the single battery can be realized through the charging equalizing switch and the discharging equalizing switch, so that the time can be saved when the battery is repaired, and the performance and the safety performance of the battery pack are improved. The charging circuit 2 adopts a device which can charge the battery and is common in the prior art, such as a model number TP4056, and the discharging circuit 3 adopts a device which can discharge the battery and is common in the prior art, such as a model number MAX 8731. The main control module 5 is controlled by a common chip in the prior art, such as a single chip microcomputer with the model of STC89C 52. The charge equalization switch 6 and the discharge equalization switch 7 are devices that are conventional in the art to control the circuit on or off.
Preferably, the charging circuit 2 includes a pre-charging circuit and a quick charging circuit, the pre-charging circuit and the quick charging circuit are respectively electrically connected with the main control module 5 and are in signal connection, so that the main control module 5 outputs a control signal to control the pre-charging circuit to perform low-current charging on each battery monomer in the lithium battery pack 1, or the quick charging circuit is controlled to perform high-current constant-voltage mode charging on each battery monomer in the lithium battery pack 1, and switching between low-current charging and high-current constant-voltage mode charging on the lithium battery pack can be realized. The charging circuit 2 may be a circuit having precharge and fast charging functions, such as a type MAX1894/MAX 1924.
Preferably, battery detection module 4 includes temperature protection module, temperature protection module is connected and signal connection with 5 electricity of host system, so that temperature protection module detects the free temperature of each battery in lithium cell group 1 and transmits to host system 5, and when host system 5 judged that the temperature exceeded the predetermined scope, host system 5 controlled the balanced switch 6 disconnection that charges in order to stop charging, can in time stop charging when the temperature was too high, improved the safety of charging. The temperature protection module adopts a conventional module in the prior art, such as a model BQ 2460.
Preferably, the battery detection module 4 comprises a voltage detection module, the voltage detection module is electrically connected and in signal connection with the main control module 5, so that the voltage detection module detects the voltage of each battery cell in the lithium battery pack 1 and transmits the voltage to the main control module 5, and when the main control module 5 judges that the maximum voltage difference between the battery cells exceeds a preset range, the main control module 5 controls the discharge equalization switch 7 to be communicated to start discharge and voltage reduction; when the voltage detection module detects the voltage of the battery monomer to the cut-off voltage, the main control module 5 controls the discharge equalization switch 7 to be switched off to stop discharging and reducing the voltage, and the discharge equalization switch is controlled to discharge and reduce the voltage through detecting the voltage of each battery monomer in the lithium battery pack so as to achieve the aim of repairing the lithium battery pack and improve the performance of the lithium battery pack. The voltage detection module adopts a device which can realize the voltage detection function of the battery and is common in the prior art, such as HVD 100.
It should be noted that the above mentioned embodiments and embodiments are intended to demonstrate the practical application of the technical solution provided by the present invention, and should not be interpreted as limiting the scope of the present invention. Various modifications, equivalent substitutions and improvements will occur to those skilled in the art and are intended to be within the spirit and scope of the present invention. The protection scope of the present invention is subject to the appended claims.
Claims (4)
1. A repairing system of a power lithium battery is characterized by comprising a lithium battery pack (1), a charging circuit (2), a discharging circuit (3), a battery detection module (4), a main control module (5), a charging equalization switch (6) and a discharging equalization switch (7); wherein the content of the first and second substances,
each battery cell in the lithium battery pack (1) is correspondingly provided with a charging circuit (2) and a discharging circuit (3), the charging circuit (2) is disconnected and communicated with each battery cell through a charging equalization switch (6) to realize charging control of each battery cell, the discharging circuit (3) is disconnected and communicated with each battery cell through a discharging equalization switch (7) to realize discharging control of each battery cell, the charging circuit (2), the discharging circuit (3), the charging equalization switch (6) and the discharging equalization switch (7) are respectively electrically connected and in signal connection with the main control module (5), so that the main control module (5) outputs control signals to control disconnection and connection of the charging equalization switch (6) and the discharging equalization switch (7) and control switching of the charging circuit (2) and the discharging circuit (3);
the main control module (5) is electrically connected and signal connected with the battery detection module (4), the battery detection module (4) is electrically connected and signal connected with each battery monomer in the lithium battery pack (1) so that the battery detection module (4) detects the battery state of each battery monomer in the lithium battery pack (1) and transmits the battery state to the main control module (5), and the main control module (5) outputs different control signals to the charge equalization switch (6) and the discharge equalization switch (7) according to the battery state.
2. The repair system of lithium battery according to claim 1, characterized in that the charging circuit (2) comprises a pre-charging circuit and a fast charging circuit, the pre-charging circuit and the fast charging circuit are respectively electrically and signal connected to the main control module (5), so that the main control module (5) outputs a control signal to control the pre-charging circuit to charge each battery cell in the lithium battery pack (1) with a small current, or to control the fast charging circuit to charge each battery cell in the lithium battery pack (1) with a large current, constant current and constant voltage.
3. The repairing system of the lithium battery as claimed in claim 1, wherein the battery detection module (4) comprises a temperature protection module, the temperature protection module is electrically connected and in signal connection with the main control module (5) so that the temperature protection module detects the temperature of each battery cell in the lithium battery pack (1) and transmits the temperature to the main control module (5), and when the main control module (5) judges that the temperature exceeds a preset range, the main control module (5) controls the charge equalization switch (6) to be switched off to stop charging.
4. The repair system of the power lithium battery as claimed in claim 1, wherein the battery detection module (4) comprises a voltage detection module, the voltage detection module is electrically connected and in signal connection with the main control module (5) so that the voltage detection module detects the voltage of each battery cell in the lithium battery pack (1) and transmits the voltage to the main control module (5), and when the main control module (5) judges that the maximum voltage difference between the battery cells exceeds a preset range, the main control module (5) controls the discharge equalization switch (7) to be communicated to start discharge voltage reduction; when the voltage detection module detects that the voltage of the battery monomer reaches the cut-off voltage, the main control module (5) controls the discharging balance switch (7) to be switched off to stop discharging and reducing the voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020792899.6U CN211957830U (en) | 2020-05-13 | 2020-05-13 | Repair system of power lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020792899.6U CN211957830U (en) | 2020-05-13 | 2020-05-13 | Repair system of power lithium battery |
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| Publication Number | Publication Date |
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| CN211957830U true CN211957830U (en) | 2020-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020792899.6U Active CN211957830U (en) | 2020-05-13 | 2020-05-13 | Repair system of power lithium battery |
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| CN (1) | CN211957830U (en) |
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- 2020-05-13 CN CN202020792899.6U patent/CN211957830U/en active Active
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