CN215680900U - BMS battery management system with improved connection structure - Google Patents
BMS battery management system with improved connection structure Download PDFInfo
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- CN215680900U CN215680900U CN202021931628.0U CN202021931628U CN215680900U CN 215680900 U CN215680900 U CN 215680900U CN 202021931628 U CN202021931628 U CN 202021931628U CN 215680900 U CN215680900 U CN 215680900U
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- battery management
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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 discloses a BMS battery management system with an improved connection structure, which comprises a battery cell and a BMS battery management unit electrically connected with the battery cell, wherein the BMS battery management unit is provided with at least one main control circuit board, a PCB connecting plate is arranged between the main control circuit board and the battery cell, the PCB connecting plate is electrically connected with a positive electrode lug and a negative electrode lug of the battery cell respectively through spot welding, one of the main control circuit board and the PCB connecting plate is provided with a row of contact pins, and the other one of the main control circuit board and the PCB connecting plate is provided with a patch row socket which is matched with the row of contact pins. The utility model optimizes the internal assembly of the lithium battery pack, realizes wireless operation and improves the assembly efficiency and safety of the lithium battery pack.
Description
Technical Field
The utility model relates to the technical field of battery management systems, in particular to a BMS battery management system with an improved connection structure.
Background
The conventional BMS management system is usually electrically connected to the battery cells by using a flat cable, so that the flat cable is easily crossed during the assembly process, and the labor cost is high under the condition of more flat cables, and the flat cable is easily misconnected or misconnected, thereby causing a short circuit and damaging the battery cells, so that improvement is necessary.
SUMMERY OF THE UTILITY MODEL
In view of the disadvantages of the prior art, an object of the present invention is to provide a BMS battery management system with an improved connection structure, which optimizes internal assembly of a lithium battery pack, realizes wireless operation, and improves the efficiency and safety of the lithium battery pack assembly.
In order to achieve the purpose, the utility model adopts the technical scheme that: the utility model provides an improve connection structure's BMS battery management system, it includes battery electricity core and electric connection in the BMS battery management unit of battery electricity core, BMS battery management unit is provided with an at least main control circuit board, be provided with the PCB connecting plate between main control circuit board and the battery electricity core, the PCB connecting plate is connected respectively in the anodal utmost point ear and the negative pole utmost point ear of battery electricity core through the spot welding electrical property, one of them party of main control circuit board and PCB connecting plate is provided with row's contact pin, the other party is provided with and arranges the socket is arranged to the paster that closes the setting with arranging the contact pin.
In a further technical scheme, the row of contact pins are arranged below the main control circuit board and are signal acquisition contact pins, the patch row socket is arranged at the position, corresponding to the signal acquisition contact pins, above the PCB connecting plate, and the main control circuit board is electrically conducted with the PCB connecting plate when the signal acquisition contact pins are oppositely inserted in the patch row socket.
In a further technical scheme, the number of the signal acquisition pins is at least two rows, the two rows of signal acquisition pins are arranged at intervals, and the distance between the two rows of signal acquisition pins is 1.27mm, 2.0mm, 2.54mm, 3.5mm or 5.0 mm.
In a further technical scheme, each row of the signal acquisition contact PINs comprises a plurality of acquisition PIN ports, and each acquisition PIN port is provided with 2 PIN PINs.
In a further technical scheme, the BMS battery management unit is provided with a logic switch module, a voltage equalization module, a power management control module, a power analysis module and a current collection module, wherein the logic switch module is respectively and electrically connected to an external lithium battery charging circuit and an external lithium battery discharging circuit, the power management control module is provided with an overcurrent current threshold I, when a current signal monitored by the current sampling module is greater than a set overcurrent current threshold I, the power management control module outputs a first power-off signal obtained through comparison and conversion to the logic switch module, and the current collection module is provided with the signal collection contact pin.
After adopting the structure, compared with the prior art, the utility model has the advantages that:
according to the utility model, the row of contact pins 10 are arranged below the main control circuit board, the row of contact pins are signal acquisition contact pins, the patch row socket is arranged above the PCB connecting plate at a position corresponding to the signal acquisition contact pins, when the signal acquisition contact pins are oppositely inserted in the patch row socket, the main control circuit board is electrically conducted with the PCB connecting plate, and the mode of electrical conduction of a flat cable in the prior art is replaced.
Drawings
The utility model is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;
fig. 3 is a schematic view of the structure of the BMS battery management unit.
Detailed Description
The following are merely preferred embodiments of the present invention, and do not limit the scope of the present invention.
As shown in fig. 1 to 3, the BMS battery management system with an improved connection structure provided by the present invention includes a battery cell 2 and a BMS battery management unit electrically connected to the battery cell 2, the BMS battery management unit is provided with at least one main control circuit board 1, a PCB connection board 3 is arranged between the main control circuit board 1 and the battery cell 2, the PCB connection board 3 is electrically connected to a positive electrode tab and a negative electrode tab of the battery cell 2 respectively by spot welding, one of the main control circuit board 1 and the PCB connection board 3 is provided with a row pin 10, and the other is provided with a patch row socket 30 aligned with the row pin 10.
Preferably, the row pins 10 are arranged below the main control circuit board 1, the row pins 10 are signal acquisition pins, the patch row socket 30 is arranged above the PCB connecting plate 3 at a position corresponding to the signal acquisition pins, when the signal acquisition pins are oppositely inserted in the patch row socket 30, the main control circuit board 1 is electrically conducted with the PCB connecting plate 3, and a mode of electrically conducting a flat cable in the prior art is replaced.
In a further technical scheme, the number of the signal acquisition pins is at least two rows, the two rows of signal acquisition pins are arranged at intervals, and the distance between the two rows of signal acquisition pins is 1.27mm, 2.0mm, 2.54mm, 3.5mm or 5.0 mm.
In a further technical scheme, each row the signal acquisition contact PIN includes a plurality of acquisition PIN ports, and each acquisition PIN port is provided with 2 PIN feet, avoids product contact failure phenomenon to appear in a PIN foot rosin joint, improves product stability.
In a further technical scheme, the BMS battery management unit is provided with a logic switch module, a voltage equalization module, a power management control module, a power analysis module and a current acquisition module, wherein the logic switch module is respectively and electrically connected to an external lithium battery charging circuit and an external lithium battery discharging circuit, the power management control module is provided with an overcurrent current threshold I, and when a current signal monitored by the current sampling module is greater than a set overcurrent current threshold I, the power management control module outputs a first power-off signal obtained through comparison and conversion to the logic switch module.
The current acquisition module is provided with the signal acquisition contact pin, the power management control module is also provided with a power management MCU unit and a voltage sampling unit for voltage signals of a plurality of lithium batteries, the power management MCU unit is provided with an overcharge voltage threshold value V1 and an overdischarge voltage threshold value V2, in the charging process, when the voltage signals monitored by the voltage sampling unit are greater than the overcharge voltage threshold value V1, the power management control module outputs a charging abnormal signal obtained through comparison and conversion to the logic switch unit, and the logic switch unit turns off the lithium battery charging circuit to play an overcharge protection role. In the discharging process, when the voltage signal monitored by the voltage sampling unit is smaller than the over-discharge voltage threshold value V2, the power management control module outputs a discharge abnormal signal obtained through comparison and conversion to the logic switch unit, and the logic switch unit turns off the lithium battery discharge circuit so as to play a role in over-discharge protection. The BMS battery management unit of the present invention plays a role in monitoring the state of health of the battery cells 2 and abnormal situations occurring during operation, and can cut off a lithium battery charging circuit or a lithium battery discharging circuit.
The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description of the present invention, which should be interpreted as a limitation.
Claims (6)
1. A BMS battery management system with an improved connection structure, characterized in that: the battery management system comprises a battery cell (2) and a BMS battery management unit electrically connected with the battery cell (2), wherein the BMS battery management unit is provided with at least one main control circuit board (1), a PCB connecting plate (3) is arranged between the main control circuit board (1) and the battery cell (2), the PCB connecting plate (3) is electrically connected with a positive electrode lug and a negative electrode lug of the battery cell (2) respectively through spot welding, one of the main control circuit board (1) and the PCB connecting plate (3) is provided with a row of contact pins (10), and the other is provided with a patch row socket (30) oppositely arranged with the row of contact pins (10).
2. The BMS battery management system of an improved connection structure according to claim 1, wherein: the utility model discloses a socket, including master control circuit board (1), row's contact pin (10) is provided with the below of master control circuit board (1), and this row of contact pin (10) is the signal acquisition contact pin, the position department that the top of PCB connecting plate (3) corresponds the signal acquisition contact pin is provided with socket is arranged to the paster (30), and when the signal acquisition contact pin was to inserting in socket is arranged to the paster (30), master control circuit board (1) and PCB connecting plate (3) electrical property switched on.
3. The BMS battery management system of an improved connection structure according to claim 2, wherein: the number of the signal acquisition pins is at least two rows, the two rows of signal acquisition pins are arranged at intervals, and the distance between the two rows of signal acquisition pins is 1.27mm, 2.0mm, 2.54mm, 3.5mm or 5.0 mm.
4. The BMS battery management system of an improved connection structure according to claim 3, wherein: each row of signal acquisition contact PINs comprises a plurality of acquisition PIN ports, and each acquisition PIN port is provided with 2 PIN PINs.
5. The BMS battery management system of an improved connection structure according to claim 2, wherein: the BMS battery management unit is provided with a logic switch module, a voltage equalization module, a power management control module, a power analysis module and a current acquisition module, wherein the logic switch module is respectively and electrically connected with an external lithium battery charging circuit and an external lithium battery discharging circuit, the power management control module is provided with an overcurrent current threshold I, when a current signal monitored by the current sampling module is greater than a set overcurrent current threshold I, the power management control module outputs a first power-off signal obtained through comparison and conversion to the logic switch module, and the current acquisition module is provided with a signal acquisition contact pin.
6. The BMS battery management system of an improved connection structure according to claim 5, wherein: the power management control module is also provided with a power management MCU unit and a voltage sampling unit for voltage signals of a plurality of lithium batteries, the power management MCU unit is provided with an overcharge voltage threshold value V1 and an overdischarge voltage threshold value V2, in the charging process, when the voltage signal monitored by the voltage sampling unit is greater than the overcharge voltage threshold value V1, the power management control module outputs a charging abnormal signal obtained through comparison and conversion to the logic switch unit, and the logic switch unit turns off a lithium battery charging circuit to play a role in overcharge protection; in the discharging process, when the voltage signal monitored by the voltage sampling unit is smaller than the over-discharge voltage threshold value V2, the power management control module outputs a discharge abnormal signal obtained through comparison and conversion to the logic switch unit, and the logic switch unit turns off the lithium battery discharge circuit so as to play a role in over-discharge protection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021931628.0U CN215680900U (en) | 2020-09-07 | 2020-09-07 | BMS battery management system with improved connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021931628.0U CN215680900U (en) | 2020-09-07 | 2020-09-07 | BMS battery management system with improved connection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215680900U true CN215680900U (en) | 2022-01-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021931628.0U Active CN215680900U (en) | 2020-09-07 | 2020-09-07 | BMS battery management system with improved connection structure |
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|---|---|
| CN (1) | CN215680900U (en) |
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- 2020-09-07 CN CN202021931628.0U patent/CN215680900U/en active Active
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Effective date of registration: 20230704 Granted publication date: 20220128 |