CN213987484U - Protocol switching board and battery management system - Google Patents
Protocol switching board and battery management system Download PDFInfo
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- CN213987484U CN213987484U CN202023098414.2U CN202023098414U CN213987484U CN 213987484 U CN213987484 U CN 213987484U CN 202023098414 U CN202023098414 U CN 202023098414U CN 213987484 U CN213987484 U CN 213987484U
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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 embodiment of the utility model discloses agreement keysets and battery management system. The protocol conversion board comprises a printed circuit board, the printed circuit board comprises a first side and a second side which are opposite, at least one serial communication pin and at least one daisy chain communication pin are arranged on the printed circuit board in sequence along the first side, when the protocol conversion chip is arranged on the printed circuit board and located between the first side and the second side, the serial communication pin is electrically connected with the serial communication pin on the protocol conversion chip, the daisy chain communication pin is electrically connected with the daisy chain communication pin on the protocol conversion chip, any factory protocol conversion chip is electrically connected with the master control unit through the protocol conversion board, and any factory protocol conversion chip is electrically connected with the slave control unit through the protocol conversion board. The adaptation of the slave control unit and the master control unit integrated with any manufacturer protocol conversion chip is realized, and the production convenience is improved.
Description
Technical Field
The embodiment of the utility model provides a relate to battery management technical field, especially relate to a agreement keysets and battery management system.
Background
In recent years, power batteries for vehicles are each provided with a Battery Management System (BMS) to monitor, manage, and protect the Battery. The conventional Battery management system is generally a master-slave split management system, that is, a slave Control Unit (BMU) acquires parameter data of a Battery and sends the parameter data to a master Control Unit (BCU), and the master Control Unit diagnoses and controls the running state of the Battery according to the parameter data.
The main control unit is required to integrate a protocol conversion chip. After the master control unit receives the parameter data sent by the slave control unit, the parameter data is converted into standard SPI (Serial Peripheral interface) protocol parameter data through a protocol conversion chip, and diagnosis and control of the battery running state are realized according to the converted standard SPI protocol parameter data.
At present, the slave control unit of the manufacturer A can only be matched with the master control unit integrated with the protocol conversion chip matched with the slave control unit of the manufacturer A in all aspects, but can not be matched with the master control unit integrated with the protocol conversion chip matched with the slave control unit of the manufacturer except the manufacturer A in all aspects, so that the limitation of matching between the slave control unit and the master control unit occurs, and inconvenience is brought to a user for producing a battery management system.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a agreement keysets and battery management system to the limitation problem of solution follow accuse unit and main control unit adaptation realizes the adaptation that has arbitrary producer agreement conversion chip's main control unit from accuse unit and integration, improves the convenience of user's production.
In a first aspect, an embodiment of the present invention provides a protocol adapter plate, the protocol adapter plate includes:
a printed circuit board including opposing first and second sides;
at least one serial communication pin; all the serial communication pins are arranged on the printed circuit board and are arranged along the first side in sequence;
at least one daisy chain communication pin; all the daisy chain communication pins are arranged on the printed circuit board and are arranged in sequence along the second side;
when the protocol conversion chip is arranged on the printed circuit board and located between the first side and the second side, the serial communication pins are electrically connected with the serial communication pins on the protocol conversion chip, and the daisy chain communication pins are electrically connected with the daisy chain communication pins on the protocol conversion chip.
Optionally, the protocol patch panel includes four of the serial communication pins;
and when the protocol conversion chip is arranged on the printed circuit board and is positioned between the first side and the second side, the serial communication pins on the protocol conversion chip are correspondingly and electrically connected with the serial communication pins.
Optionally, the protocol patch panel comprises two of the daisy chain communication pins;
when the protocol conversion chip is arranged on the printed circuit board and is positioned between the first side and the second side, the daisy chain communication pins on the protocol conversion chip are correspondingly and electrically connected with the daisy chain communication pins.
Optionally, the distance between the first side and the second side is 11 mm to 20 mm.
Optionally, the power supply device further comprises at least one power supply pin and at least one configuration pin;
the printed circuit board further comprises a third side adjacent to the first side; all the power supply pins are arranged on the printed circuit board and are sequentially arranged along the third edge; all the configuration pins are arranged on the printed circuit board and are sequentially arranged along the third edge;
the protocol conversion chip is electrically connected with an external power supply through the power supply pins.
Optionally, the device further comprises at least one ground pin;
the printed circuit board further comprises a fourth side opposite the third side; all the grounding pins are arranged on the printed circuit board and are sequentially arranged along the fourth edge;
the protocol conversion chip is electrically connected with a grounding signal through the grounding pin.
Optionally, the distance between the third side and the fourth side is 11 mm to 20 mm.
In a second aspect, an embodiment of the present invention further provides a battery management system, where the battery management system includes a master control unit, a slave control unit, a protocol conversion chip, and a protocol adapter board as described in the first aspect; the protocol adapter plate comprises four serial communication pins and two daisy chain communication pins;
the protocol switching board is integrated in the main control unit;
the protocol conversion chip is arranged on the printed circuit board and is positioned between the first side and the second side; the serial communication pin on the protocol switching board is electrically connected with the serial communication pin on the protocol conversion chip, and the daisy chain communication pin on the protocol switching board is electrically connected with the daisy chain communication pin on the protocol conversion chip;
the main control unit is electrically connected with and communicates with the protocol conversion chip through a serial communication pin of the main control unit, a serial communication pin of the protocol adapter plate and a serial communication pin on the protocol conversion chip in sequence;
the slave control unit is electrically connected with the protocol conversion chip and is communicated with the protocol conversion chip through the daisy chain communication pin of the slave control unit, the daisy chain communication pin of the protocol conversion board and the daisy chain communication pin on the protocol conversion chip in sequence.
Optionally, the digital isolation transformer, the third resistor, the fourth resistor and the first capacitor are further included;
the first end and the second end of the digital isolation transformer are respectively and electrically connected with two daisy chain communication pins of the slave control unit, the third end of the digital isolation transformer is electrically connected with one daisy chain communication pin of the protocol switching board, and the fourth end of the digital isolation transformer is electrically connected with the other daisy chain communication pin of the protocol switching board;
the first end of the third resistor is electrically connected with the third end of the digital isolation transformer, the second end of the third resistor is electrically connected with the first end of the fourth resistor, the second end of the fourth resistor is electrically connected with the fourth end of the digital isolation transformer, the first pole of the first capacitor is electrically connected with the first end of the fourth resistor, and the second pole of the first capacitor is connected to a ground signal.
Optionally, the number of the serial communication pins of the protocol conversion chip is 4, and the number of the daisy chain communication pins of the protocol conversion chip is 2.
The protocol switching board provided by the embodiment of the utility model comprises a printed circuit board, the printed circuit board comprises a first side and a second side which are opposite, at least one serial communication pin which is arranged along the first side in sequence and at least one daisy chain communication pin which is arranged along the second side in sequence are arranged on the printed circuit board, when the protocol conversion chip is arranged on the printed circuit board and is positioned between the first side and the second side, the serial communication pin is electrically connected with the serial communication pin on the protocol conversion chip and the daisy chain communication pin is electrically connected with the daisy chain communication pin on the protocol conversion chip, thus, when the protocol switching board provided with the protocol switching chip of any manufacturer is integrated in the main control unit, any manufacturer protocol conversion chip is electrically connected with the main control unit through the protocol switching board of the embodiment, meanwhile, any manufacturer protocol conversion chip is electrically connected with the slave control unit through the protocol adapter plate of the embodiment. The protocol switching board of the embodiment is used, the circuit when the master control unit is electrically connected with the protocol conversion chips of different manufacturers is unified, the circuit when the protocol switching board of the embodiment is electrically connected with the master control unit is made to be the circuit when the slave control unit is electrically connected with the protocol conversion chips of different manufacturers, and the circuit when the slave control unit is electrically connected with the protocol conversion chips of different manufacturers is unified, so that the circuit when the protocol switching board of the embodiment is electrically connected with the slave control unit is made to be the circuit, the slave control unit can be matched with the master control unit integrated with any protocol conversion chip of any manufacturer, the limitation problem of the slave control unit and the master control unit is solved, the slave control unit is matched with the master control unit integrated with any protocol conversion chip of the manufacturer, and the convenience in production of users is improved.
Drawings
Fig. 1 is a schematic structural diagram of a protocol adapter board according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a connection relationship between a protocol adapter board and a master control unit and a slave control unit in a battery management system according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a protocol adapter board provided with a protocol conversion chip according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a protocol conversion chip according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of another protocol conversion chip according to an embodiment of the present invention;
fig. 6 is a schematic diagram illustrating a connection relationship between a protocol adapter board provided with a protocol conversion chip and a master control unit and a slave control unit in a battery management system according to an embodiment of the present invention;
fig. 7 is a schematic diagram illustrating a connection relationship between a protocol adapter board provided with a protocol conversion chip and a master control unit and a slave control unit in a battery management system according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of a battery management system according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of a battery management system according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
The existing protocol conversion chip of any manufacturer comprises a serial communication pin and a daisy chain communication pin. However, when the protocol conversion chip between the manufacturers is electrically connected to the master control unit, the connection structure and distribution of the serial communication pins are different from each other, and when the protocol conversion chip between the manufacturers is electrically connected to the slave control unit, the connection structure and distribution of the daisy chain communication pins are also different from each other. The slave control unit of the manufacturer A can only be adapted to the master control unit integrated with the protocol conversion chip matched with the slave control unit of the manufacturer A in all aspects, but cannot be adapted to the master control unit integrated with the protocol conversion chip matched with the slave control unit of the manufacturer except the manufacturer A in all aspects, so that the limitation of adaptation between the slave control unit and the master control unit occurs. The slave control unit may be a battery pack parameter acquisition unit and/or a battery core parameter acquisition chip in the battery management system, and the battery pack parameter acquisition unit may include a simulation acquisition chip.
To this end, this embodiment provides a protocol switching board, fig. 1 is a schematic structural diagram of the protocol switching board provided by the embodiment of the present invention, referring to fig. 1, the protocol switching board includes:
a printed circuit board 100, the printed circuit board 100 including opposing first and second sides 101, 102; at least one serial communication pin a; all the serial communication pins a are arranged on the printed circuit board 100 and are arranged in sequence along the first side 101; at least one daisy chain communication pin b; all daisy chain communication pins b are disposed on the printed circuit board 100 and arranged in sequence along the second side 102; when the protocol conversion chip is disposed on the printed circuit board 100 and located between the first side 101 and the second side 102, the serial communication pin a is electrically connected to a serial communication pin on the protocol conversion chip, and the daisy chain communication pin b is electrically connected to a daisy chain communication pin on the protocol conversion chip.
Specifically, the serial communication pin a in the protocol patch board may be a standard SPI protocol pin capable of being electrically connected with a standard SPI protocol interface, which is adapted and electrically connected with a standard SPI protocol interface of the main control unit or a standard SPI protocol communication line. The daisy chain communication pin b in the protocol transition board may be a pin capable of being electrically connected with a daisy chain communication line or a daisy chain communication interface, which is used for adapting and electrically connecting with the daisy chain communication line or the daisy chain communication interface of the slave control unit. Fig. 1 only illustrates, by way of example, four serial communication pins a (i.e., a1 to a4) and two daisy-chain communication pins b (i.e., b1 to b2), where the serial communication pins a and the daisy-chain communication pins b may be formed on the printed circuit board 100 by Surface Mount Technology (SMT), and the serial communication pins a in the protocol adapter board may specifically be adapted and electrically connected to a standard SPI protocol interface on a processor of the master control unit, for example, an MCU singlechip.
Exemplarily, fig. 2 is a schematic diagram of a connection relationship structure between a protocol adapter board and a master control unit and a slave control unit in a battery management system according to an embodiment of the present invention, referring to fig. 2, a serial communication pin a in the protocol adapter board is correspondingly connected to a standard SPI protocol interface c (i.e., c1 to c4) on a processor 201 of a master control unit 200, and a daisy chain communication pin b in the protocol adapter board is correspondingly connected to a daisy chain communication interface d (i.e., d1 to d2) of a slave control unit 300.
When a protocol conversion chip of any manufacturer is arranged on the printed circuit board 100 and positioned between the first side 101 and the second side 102, the serial communication pin a and the serial communication pin on the protocol conversion chip are electrically connected through the printed circuit, the daisy chain communication pin b and the daisy chain communication pin on the protocol conversion chip are electrically connected through the printed circuit, namely, the protocol conversion chip can be electrically connected with the serial communication interface of the master control unit in the battery management system through the serial communication pin on the protocol conversion chip and the serial communication pin a in the protocol conversion board in sequence, the protocol conversion chip can be electrically connected with the daisy chain communication interface of the slave control unit in the battery management system through the daisy chain communication pin on the protocol conversion chip and the daisy chain communication pin b in the protocol conversion board in sequence, therefore, the protocol conversion chip of any manufacturer communicates with the master control unit through the serial communication pin a of the protocol conversion board, and simultaneously, the protocol conversion chip of any manufacturer communicates with the slave control unit through the daisy chain communication pin b of the protocol conversion board.
That is, the protocol conversion board fixes and defines the serial communication pins of the protocol conversion chips of different manufacturers as the serial communication pins a on the protocol conversion board, and the protocol conversion board fixes and defines the daisy chain communication pins of the protocol conversion chips of different manufacturers as the daisy chain communication pins b on the protocol conversion board, thereby unifying the circuits when the main control unit is electrically connected with the protocol conversion chips of different manufacturers, making the serial communication pins a of the protocol conversion board be the circuits when the serial communication pins a are electrically connected with the main control unit, and unifying the circuits when the slave control unit is electrically connected with the protocol conversion chips of different manufacturers, making the daisy chain communication pins b of the protocol conversion board be the circuits when the slave control unit is electrically connected with the protocol conversion chip of any manufacturer, making the protocol conversion chip of any manufacturer be electrically connected with the main control unit through the serial communication pins a fixed on the protocol conversion board, meanwhile, the protocol conversion chip of any manufacturer is electrically connected with the slave control unit through the daisy chain communication pin b fixed on the protocol switching board, so that the slave control unit is adapted to the master control unit integrated with the protocol conversion chip of any manufacturer, the problem of limitation of adaptation of the slave control unit and the master control unit is solved, and the convenience of production of users is improved.
Fig. 3 is a schematic structural diagram of a protocol conversion chip provided on a protocol conversion board according to an embodiment of the present invention, referring to fig. 3, the protocol conversion chip in fig. 3 is a simplified schematic structural diagram of a protocol conversion chip X of any manufacturer, when the protocol conversion chip X is disposed on a printed circuit board 100 in the protocol conversion board and located between a first side 101 and a second side 102, a serial communication pin a is electrically connected to a serial communication pin e (i.e., e1 to e4) on the protocol conversion chip X, and a daisy chain communication pin b is electrically connected to a daisy chain communication pin f (i.e., f1 to f4) on the protocol conversion chip X.
Exemplarily, fig. 4 is a schematic structural diagram of a protocol conversion chip provided by the embodiment of the present invention, fig. 5 is a schematic structural diagram of another protocol conversion chip provided by the embodiment of the present invention, that is, fig. 4 and fig. 5 are schematic structural diagrams of protocol conversion chips of two different manufacturers exemplarily provided by the present embodiment, fig. 4 is a schematic structural diagram of a protocol conversion chip of a manufacturer a, and fig. 5 is a schematic structural diagram of a protocol conversion chip of a manufacturer B.
As shown in fig. 4, the protocol conversion chip a includes an enable pin a1, four serial communication pins Ae1 to Ae4, a power supply pin A6, an SPI clock signal polarity pin a7, an SPI clock signal phase pin A8, a power supply pin a9, daisy chain communication pins Af1 to Af2, a mode selection node pin a12, a communication rate pin a13, a power supply pin a14, a threshold voltage pin a15, and a daisy chain signal current pin a16, which are arranged in a counterclockwise sequence.
As shown in fig. 5, the protocol conversion chip B includes a sleep pin B1, a wake-up pin B2, alarm pins B3 to B4, a power supply pin B5, a ground pin B6, a factory test pin B7, a power supply pin B8, four serial communication pins Be1 to Be4, a ground pin B13, a power supply pin B14, two daisy chain communication pins Bf1 to Bf2, GPIO output pins B17 to B19, a power supply pin B20, a daisy chain wake-up output pin B21, a daisy chain sleep output pin B22, a power supply pin B24, and an idle pin B23, which are arranged in a counterclockwise sequence.
As can be seen from the protocol conversion chip a and the protocol conversion chip B provided in fig. 4 and 5, the functional pins of the protocol conversion chip a and the protocol conversion chip B are distributed at different positions, and therefore, the printed circuit when the protocol conversion chip a is disposed on the printed circuit board 100 in the protocol adapter board and is electrically connected to the serial communication pin a and the daisy chain communication pin B is different from the printed circuit when the protocol conversion chip B is disposed on the printed circuit board 100 in the protocol adapter board and is electrically connected to the serial communication pin a and the daisy chain communication pin B. In the protocol conversion board provided by this embodiment, a plurality of printed circuit lines may be etched between the first side 101 and the second side 102 of the printed circuit 100 according to actual needs, so as to implement an electrical connection relationship with different protocol conversion chips.
Further, except that the printed circuits of the different protocol conversion chips electrically connected to the protocol adapter board may be different, the corresponding peripheral circuits of the different protocol conversion chips electrically connected to the protocol adapter board may also be different when integrated in the main control unit. For example, the protocol conversion chip a in fig. 4 and the protocol conversion chip B in fig. 5 have different power supply pins, and thus have different peripheral power supply circuits. After different protocol conversion chips are arranged on the protocol switching board and integrated on the main control unit, different peripheral circuits can be correspondingly accessed in the main control unit corresponding to different protocol conversion chips.
Exemplarily, fig. 6 is a schematic diagram of a connection relationship structure between a master control unit and a slave control unit in a protocol adapter board provided with a protocol conversion chip and a battery management system provided by an embodiment of the present invention, and fig. 7 is a schematic diagram of a connection relationship between a master control unit and a slave control unit in another protocol adapter board provided with a protocol conversion chip and a battery management system provided by an embodiment of the present invention. As shown in fig. 6, fig. 6 is a schematic diagram of a protocol conversion chip a disposed on a protocol adapter board and integrated in a master control unit 200, and further electrically connected to a slave control unit 300 through a daisy chain communication pin a in the protocol adapter board, where a first power voltage V1 is 5 volts, a connection relationship between a power supply pin a9 and a power supply pin a14 of the protocol conversion chip a and the first power voltage V1, and a first power voltage V1 are peripheral circuits of the protocol conversion chip a in the master control unit 200. As shown in fig. 7, the second power voltage V2 is 12 volts, the third power voltage V3 is 18 volts, the power pin B5 of the protocol conversion chip B is connected to the second power voltage V2 through the first resistor R1, and the power pin B13 of the protocol conversion chip B is connected to the third power voltage V3 through the second resistor. The connection relationship between the protocol conversion chip B and the second power voltage V2, the third power voltage V3, the first resistor R1, the second resistor R2, the second power voltage V2, and the third power voltage V3 are all peripheral circuits of the protocol conversion chip B in the main control unit 200.
In addition, the protocol switch board in this embodiment mainly defines and fixes the serial communication pins of the protocol conversion chips of different manufacturers to the serial communication pin a on the printed circuit board 100, and defines and fixes the daisy chain communication pins of the protocol conversion chips of different manufacturers to the daisy chain communication pin b on the printed circuit board 100, and the electrical connection relationship between the other functional pins of the protocol conversion chips of different manufacturers and the other pins in the protocol switch board can achieve electrical connection according to the principle of convenient routing according to the actual situation.
Optionally, the protocol patch panel further includes at least one power pin g and at least one configuration pin h; the printed circuit board 100 further comprises a third side 103 adjacent to the first side 101; all the power supply pins g are arranged on the printed circuit board 100 and are arranged in sequence along the third edge 103; all the configuration pins h are arranged on the printed circuit board 100 and are arranged in sequence along the third edge 103; the protocol conversion chip is electrically connected with an external power supply through a power supply pin g.
Specifically, with continued reference to fig. 6, two power supply pins g1 and g2 are exemplarily illustrated in fig. 6, and the power supply pin of the protocol conversion chip is electrically connected to the power supply pin g in the protocol conversion board, so that the external power supply (e.g., the first power supply voltage V1) in the main control unit sequentially supplies power to the protocol conversion chip (e.g., the protocol conversion chip a) through the power supply pin g in the protocol conversion board and the power supply pins (e.g., the power supply pin a9 and the power supply pin a14 of the protocol conversion chip a). With continued reference to fig. 7, two configuration pins h1 and h2 are exemplarily illustrated in fig. 7, so that the protocol conversion board can access peripheral circuits (e.g., the first resistor R1, the second resistor R2, the second power supply voltage V2 and the third power supply voltage V3) of a corresponding protocol conversion chip (e.g., the protocol conversion chip B) through the configuration pin h.
Optionally, with continued reference to fig. 1, the protocol patch panel further includes at least one ground pin k (e.g., k1 and k 2); printed circuit board 100 further comprises a fourth side 104 opposite to third side 103; all the grounding pins k are arranged on the printed circuit board 100 and are arranged in sequence along the fourth edge 104; the protocol conversion chip is electrically connected to a ground signal V5 through a ground pin k. Specifically, the ground pin of the protocol conversion chip is electrically connected to the ground pin k on the protocol conversion board, so that the ground pin of the protocol conversion chip can access the ground signal V5.
It can be understood that the printed circuit board 100 in this embodiment includes four sides, and it is only necessary to ensure that the serial communication pin a and the daisy chain communication pin b of the protocol conversion board are disposed on two opposite sides of the printed circuit board 100, so as to facilitate electrical connection with the protocol conversion chip, and as for the ground pin k, the power supply pin g, and the configuration pin h, all of which may be disposed on any side of the printed circuit board 100 according to the principle of facilitating wiring, this embodiment is not limited thereto.
Optionally, the distance between the first side 101 and the second side 102 is 11 mm to 20 mm.
Optionally, the distance between third side 101 and fourth side 104 is 11 mm to 20 mm.
Specifically, in this embodiment, a distance between the first side 101 and the second side 102 of the printed circuit board 100 is a distance between two opposite sides of the protocol adapter board, and a distance between the third side 103 and the fourth side 104 of the printed circuit board 100 is a distance between two other opposite sides of the protocol adapter board. In this embodiment, the protocol adapter board is also equivalent to a carrier of the protocol conversion chip, and the protocol adapter board can also be regarded as a single chip. After the protocol conversion chip is arranged on the protocol adapter plate, the protocol conversion chip and the protocol adapter plate can be regarded as a total integral chip, and when the total integral chip is integrated in the central control unit, the central control unit is matched and electrically connected with the slave control unit through the total integral chip, so that the communication of parameter data and the protocol conversion of data signals are realized. Therefore, considering that the protocol conversion chip and the protocol adapter board are integrated in the central control unit as a total integrated chip, the size of the protocol adapter board is not too large to occupy the space of the main control unit, and the size of the protocol adapter board can be 20 mm × 20 mm at the maximum, and considering that the protocol adapter board is to be adapted to the protocol conversion chips of different manufacturers in size, the size of the protocol adapter board is not too small to be adapted to different protocol conversion chips in physical size as much as possible, and the size of the protocol adapter board can be 11 mm × 11 mm at the minimum.
Optionally, with continued reference to fig. 1, the protocol patch panel includes four serial communication pins a; when the protocol conversion chip is disposed on the printed circuit board 100 and located between the first side 101 and the second side 102, the serial communication pins on the protocol conversion chip are electrically connected to the corresponding serial communication pins a on the protocol conversion board. Specifically, the standard SPI protocol communication line is typically four, so that the protocol conversion board may be provided to include four serial communication pins a, each serial communication pin (i.e., e1 to e4) of the protocol conversion chip may be electrically connected to a corresponding serial communication pin a on the protocol conversion board, if the serial communication pin e1 of the protocol conversion chip corresponds to the serial communication pin a1 on the protocol conversion board in the communication protocol, the serial communication pin e1 of the protocol conversion chip is electrically connected to the serial communication pin a1 on the protocol conversion board by a printed circuit, and if the serial communication pin e1 of the protocol conversion chip corresponds to the serial communication pin a2 on the protocol conversion board in the communication protocol, the serial communication pin e1 of the protocol conversion chip is electrically connected to the serial communication pin a2 on the protocol conversion board by a printed circuit.
Optionally, the protocol patch panel comprises two daisy-chain communication pins b; when the protocol conversion chip is disposed on the printed circuit board 100 and located between the first side 101 and the second side 102, the daisy chain communication pins on the protocol conversion chip are electrically connected with the corresponding daisy chain communication pins on the protocol conversion board. In particular, two daisy-chain communication lines are usually drawn from the slave control unit, and therefore the settable protocol switch board comprises two daisy-chain communication pins b. If the daisy chain communication pin f1 of the protocol conversion chip corresponds to the daisy chain communication pin b1 on the protocol conversion board in the communication protocol, the daisy chain communication pin f1 of the protocol conversion chip is electrically connected to the daisy chain communication pin b1 on the protocol conversion board through a printed circuit, and if the daisy chain communication pin f2 of the protocol conversion chip corresponds to the daisy chain communication pin b1 on the protocol conversion board in the communication protocol, the daisy chain communication pin f2 of the protocol conversion chip is electrically connected to the daisy chain communication pin b1 on the protocol conversion board through a printed circuit.
The embodiment of the present invention further provides a battery management system, fig. 8 is a schematic structural diagram of the battery management system provided in the embodiment of the present invention, as shown in fig. 8, the battery management system includes a master control unit 200, a slave control unit 300, a protocol conversion chip X, and a protocol adapter board according to any of the above technical solutions;
the protocol switching board is integrated in the main control unit 200;
the protocol conversion chip is arranged on the printed circuit board 100 and is located between the first side 101 and the second side 102; a serial communication pin a on the protocol adapter plate is electrically connected with a serial communication pin e on the protocol conversion chip X, and a daisy chain communication pin b on the protocol adapter plate is electrically connected with a daisy chain communication pin f on the protocol conversion chip X;
the main control unit 200 communicates with the protocol conversion chip X sequentially through a serial communication pin c of the main control unit 200, a serial communication pin a of the protocol adapter board and a serial communication pin e on the protocol conversion chip X;
the slave control unit 300 communicates with the protocol conversion chip X through the daisy chain communication pin d of the slave control unit 300, the daisy chain communication pin b of the protocol conversion board, and the daisy chain communication pin f on the protocol conversion chip X in this order.
Specifically, the protocol adapter board is integrated in the main control unit 200, and specifically, the printed circuit board 100, which may be a protocol adapter board, is electrically connected to the circuit board of the main control unit 200, and the serial communication pin a on the protocol adapter board may be specifically connected to a standard SPI protocol interface c (i.e., c1 to c4) on the processor 201 of the main control unit 200, and optionally, the serial communication pin a on the protocol adapter board in this embodiment is in one-to-one communication connection or in one-to-one electrical connection with the standard SPI protocol interface c on the processor 201.
Optionally, fig. 9 is a schematic structural diagram of a battery management system according to an embodiment of the present invention, as shown in fig. 9, the battery management system further includes a digital isolation transformer T1, a third resistor R3, a fourth resistor R4, and a first capacitor C1;
a first end and a second end of the digital isolation transformer T1 are electrically connected with two daisy chain communication pins d1 and d2 of the slave control unit 300, respectively, a third end of the digital isolation transformer T1 is electrically connected with one daisy chain communication pin b1 of the protocol switch board, and a fourth end of the digital isolation transformer is electrically connected with the other daisy chain communication pin b2 of the protocol switch board;
a first terminal of the third resistor R3 is electrically connected to a third terminal of the digital isolation transformer T1, a second terminal of the third resistor R3 is electrically connected to a first terminal of the fourth resistor R4, a second terminal of the fourth resistor R4 is electrically connected to a fourth terminal of the digital isolation transformer T1, a first pole of the first capacitor C1 is electrically connected to a first terminal of the fourth resistor R4, and a second pole of the first capacitor C1 is connected to a ground signal.
Optionally, with continued reference to fig. 9, the protocol conversion chip X has 4 serial communication pins (i.e., e1 through e4) and the protocol conversion chip has 2 daisy chain communication pins (i.e., f1 through f 2). The protocol conversion chip X is a protocol conversion chip of any manufacturer.
The embodiment of the utility model provides a battery management system belongs to the same inventive concept with the agreement keysets that above-mentioned arbitrary technical scheme provided, and both can realize the same technological effect, and the repetitive content here is no longer repeated.
It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.
Claims (10)
1. A protocol patch panel, comprising:
a printed circuit board including opposing first and second sides;
at least one serial communication pin; all the serial communication pins are arranged on the printed circuit board and are arranged along the first side in sequence;
at least one daisy chain communication pin; all the daisy chain communication pins are arranged on the printed circuit board and are arranged in sequence along the second side;
when the protocol conversion chip is arranged on the printed circuit board and located between the first side and the second side, the serial communication pins are electrically connected with the serial communication pins on the protocol conversion chip, and the daisy chain communication pins are electrically connected with the daisy chain communication pins on the protocol conversion chip.
2. The protocol patch panel of claim 1, wherein the protocol patch panel comprises four of the serial communication pins;
and when the protocol conversion chip is arranged on the printed circuit board and is positioned between the first side and the second side, the serial communication pins on the protocol conversion chip are correspondingly and electrically connected with the serial communication pins.
3. The protocol patch panel of claim 1, wherein the protocol patch panel comprises two of the daisy-chain communication pins;
when the protocol conversion chip is arranged on the printed circuit board and is positioned between the first side and the second side, the daisy chain communication pins on the protocol conversion chip are correspondingly and electrically connected with the daisy chain communication pins.
4. The protocol patch panel of claim 1, wherein the distance between the first side and the second side is 11 mm to 20 mm.
5. The protocol patch panel of claim 1, further comprising at least one power pin and at least one configuration pin;
the printed circuit board further comprises a third side adjacent to the first side; all the power supply pins are arranged on the printed circuit board and are sequentially arranged along the third edge; all the configuration pins are arranged on the printed circuit board and are sequentially arranged along the third edge;
the protocol conversion chip is electrically connected with an external power supply through the power supply pins.
6. The protocol patch panel of claim 5, further comprising at least one ground pin;
the printed circuit board further comprises a fourth side opposite the third side; all the grounding pins are arranged on the printed circuit board and are sequentially arranged along the fourth edge;
the protocol conversion chip is electrically connected with a grounding signal through the grounding pin.
7. The protocol patch panel of claim 6, wherein the distance between the third side and the fourth side is 11 millimeters to 20 millimeters.
8. A battery management system comprising a master control unit, a slave control unit, a protocol conversion chip and a protocol conversion board according to any one of claims 1 to 7; the protocol adapter plate comprises four serial communication pins and two daisy chain communication pins;
the protocol switching board is integrated in the main control unit;
the protocol conversion chip is arranged on the printed circuit board and is positioned between the first side and the second side; the serial communication pin on the protocol switching board is electrically connected with the serial communication pin on the protocol conversion chip, and the daisy chain communication pin on the protocol switching board is electrically connected with the daisy chain communication pin on the protocol conversion chip;
the main control unit is electrically connected with and communicates with the protocol conversion chip through a serial communication pin of the main control unit, a serial communication pin of the protocol adapter plate and a serial communication pin on the protocol conversion chip in sequence;
the slave control unit is electrically connected with the protocol conversion chip and is communicated with the protocol conversion chip through the daisy chain communication pin of the slave control unit, the daisy chain communication pin of the protocol conversion board and the daisy chain communication pin on the protocol conversion chip in sequence.
9. The battery management system of claim 8, further comprising a digital isolation transformer, a third resistor, a fourth resistor, and a first capacitor;
a first end and a second end of the digital isolation transformer are respectively and electrically connected with two daisy chain communication pins of the slave control unit, a third end of the digital isolation transformer is electrically connected with one daisy chain communication pin of the protocol switching board, and a fourth end of the digital isolation transformer is electrically connected with the other daisy chain communication pin of the protocol switching board;
the first end of the third resistor is electrically connected with the third end of the digital isolation transformer, the second end of the third resistor is electrically connected with the first end of the fourth resistor, the second end of the fourth resistor is electrically connected with the fourth end of the digital isolation transformer, the first pole of the first capacitor is electrically connected with the first end of the fourth resistor, and the second pole of the first capacitor is connected to a ground signal.
10. The battery management system of claim 8, wherein the protocol conversion chip has 4 serial communication pins and 2 daisy chain communication pins.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023098414.2U CN213987484U (en) | 2020-12-21 | 2020-12-21 | Protocol switching board and battery management system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023098414.2U CN213987484U (en) | 2020-12-21 | 2020-12-21 | Protocol switching board and battery management system |
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| CN213987484U true CN213987484U (en) | 2021-08-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113709155A (en) * | 2021-08-27 | 2021-11-26 | 苏州猛禽视觉科技有限公司 | Battery module daisy chain communication conversion method, system and terminal |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113709155A (en) * | 2021-08-27 | 2021-11-26 | 苏州猛禽视觉科技有限公司 | Battery module daisy chain communication conversion method, system and terminal |
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