Battery pack management system and electronic equipment

Abstract

The utility model provides a battery pack management system and electronic equipment, and the system comprises at least one battery pack and an IIC host. The battery pack at least comprises a communication board, a BMS protection board and a battery module, the battery module is connected with the BMS protection board, the BMS protection board is connected with the communication board, the communication board is connected with the IIC host, the BMS protection board is used for carrying out data monitoring on the battery module, and the communication board is used for transmitting monitoring data obtained by the BMS protection board to the IIC host. According to the system, the communication board in at least one battery pack is used as the IIC slave machine to be connected with the IIC host machine, so that one IIC host machine can obtain the monitoring data of the battery module in at least one battery pack, one-to-many data monitoring is realized, the circuit layout of the battery pack management system is simple, the occupied space of the system is reduced, and the cost of the system is reduced. And the communication board is used as the IIC slave, so that the power consumption of the system can be reduced, and meanwhile, the IIC host can be used for determining the fault position when the BMS protection board fails.

Description

Technical Field

[0001] The utility model relates to the field of power batteries, in particular to a battery pack management system and an electronic device. Background Art

[0002] With the development of the new energy field in recent years, especially the progress of the modern battery field, modern batteries are gradually applied to various scenarios. Among them, BMS (Battery Management System) plays an important role in modern batteries and is often used for monitoring and protecting batteries.

[0003] During the monitoring process of battery data, the BMS transmits the data to a monitoring terminal through a communication board. When there are multiple BMSs, multiple communication boards need to be connected to multiple monitoring terminals to display the battery monitoring data collected by different BMSs. This makes the wiring of the battery management system redundant and complex, increases the power consumption of the battery management system, and when a BMS fails, the entire BMS needs to be detected to determine the location of the failure. Summary of the Invention

[0004] The utility model provides a battery pack management system and an electronic device to solve the problems in the related art, and realizes the aggregation of monitoring data in at least one battery pack by using one IIC host, making the wiring layout of the battery pack management system simple, reducing the occupied space and power consumption of the system, and at the same time, the IIC host can be used to determine the failure location when the BMS protection board fails.

[0005] The first aspect embodiment of the utility model provides a battery pack management system, including: at least one battery pack and one IIC host; the battery pack at least includes: one communication board, one BMS protection board and one battery module, the battery module is connected to the BMS protection board, the BMS protection board is connected to the communication board, the communication board is connected to the IIC host, the BMS protection board is used for monitoring data of the battery module, and the communication board is used for transmitting the monitoring data obtained by the BMS protection board to the IIC host.

[0006] In some embodiments of the utility model, the first port of the communication board is connected to the seventh port of the BMS protection board through the first data line, and the second port of the communication board is connected to the eighth port of the BMS protection board through the first clock line.

[0007] In some embodiments of the utility model, the third port of the communication board is connected to the ninth port of the IIC host through the second data line, and the fourth port of the communication board is connected to the tenth port of the IIC host through the second clock line.

[0008] In some embodiments of the present utility model, the battery pack management system further includes at least one IIC isolator, and the communication board is connected to the IIC host through the IIC isolator.

[0009] In some embodiments of the present utility model, the eleventh port of the IIC isolator is connected to the fifth port of the communication board through the third data line, the thirteenth port of the IIC isolator is connected to the fifteenth port of the IIC host through the fourth data line, the twelfth port of the IIC isolator is connected to the sixth port of the communication board through the third clock line, and the fourteenth port of the IIC isolator is connected to the sixteenth port of the IIC host through the fourth clock line.

[0010] In some embodiments of the present utility model, when the IIC isolator is located inside the battery pack, the battery pack management system includes at least one IIC isolator; when the IIC isolator is located outside the battery pack, the battery pack management system includes one IIC isolator.

[0011] In some embodiments of the present utility model, the IIC isolator is a dual-channel bidirectional isolator.

[0012] In some embodiments of the present utility model, the positive electrode of the BMS protection board is connected to the positive electrode of the battery module, and the negative electrode of the BMS protection board is connected to the negative electrode of the battery module.

[0013] In some embodiments of the present utility model, the BMS protection board adopts a protection board based on the SH367309 chip.

[0014] In the second aspect of the embodiments of the present utility model, an electronic device is proposed, which includes the system described in the first aspect of the embodiments of the present utility model.

[0015] In summary, according to a battery pack management system proposed by the present utility model, the system includes: at least one battery pack and one IIC host; the battery pack at least includes: a communication board, a BMS protection board and a battery module, the battery module is connected to the BMS protection board, the BMS protection board is connected to the communication board, the communication board is connected to the IIC host, the BMS protection board is used to monitor data of the battery module, and the communication board is used to transmit the monitored data obtained by the BMS protection board to the IIC host. By connecting the communication board in at least one battery pack to one IIC host, the system can obtain the monitored data of the battery module in at least one battery pack through one IIC host, realizing one-to-many data monitoring, making the circuit layout of the battery pack management system simple, reducing the occupied space of the system, and at the same time, the IIC host can be used to determine the fault location when the BMS protection board fails.

[0016] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present utility model. Brief Description of the Drawings

[0017] The drawings here are incorporated into the specification and form a part of this specification, showing embodiments in accordance with the present utility model, and are used together with the specification to explain the principles of the present utility model, and do not constitute an improper limitation to the present utility model.

[0018] Figure 1 It is a schematic diagram of a battery pack management system provided by an embodiment of the present utility model;

[0019] Figure 2 It is a schematic diagram of another battery pack management system provided by an embodiment of the present utility model;

[0020] Figure 3 It is a schematic diagram of yet another battery pack management system provided by an embodiment of the present utility model. Detailed Description of the Embodiments

[0021] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present utility model, and should not be construed as a limitation to the present utility model.

[0022] With the development of the new energy field in recent years, especially the progress in the modern battery field, modern batteries are gradually applied to various scenarios. Among them, BMS (Battery Management System) plays an important role in modern batteries, and it is often used for monitoring and protecting batteries.

[0023] During the process of monitoring battery data, the BMS transmits the data to a monitoring terminal through a communication board. When there are multiple BMSs, multiple communication boards need to be connected to multiple monitoring terminals to display the battery monitoring data collected by different BMSs. This makes the wiring of the battery management system redundant and complex, and at the same time increases the power consumption of the battery management system. And when a fault occurs in the BMS, the entire BMS needs to be detected to determine the location where the fault occurs.

[0024] The present utility model will be further described in detail below in conjunction with the drawings and specific embodiments.

[0025] Figure 1 It is a schematic diagram of a battery pack management system provided by an embodiment of the present utility model. As Figure 1 shown, the system includes the following structure.

[0026] As Figure 1As shown in the figure, the battery pack management system provided by the embodiments of the present disclosure includes: at least one battery pack 110 and an IIC host 120, where the IIC host 120 is used to obtain the monitoring data monitored by the BMS protection board 112 in at least one battery pack 110 for the battery module 111.

[0027] In the above embodiment, at least one battery pack 110 further includes: a communication board 113, a BMS protection board 112 and a battery module 111. Among them, the battery module 111 is connected to the BMS protection board, and the BMS protection board is used to monitor the data of the battery module 111 to obtain the battery data of the battery module 111; the BMS protection board 112 is connected to the communication board 113, the communication board 113 is connected to the IIC host 120, and the communication board is used to obtain the monitoring data of the BSM protection board 112 for the battery module 111 from the BMS protection board 112 and send the monitoring data to the IIC host 120, so that the IIC data 120 can obtain the monitoring data in at least one battery pack 110, thereby realizing one-to-many battery data monitoring, and data monitoring of the BMS protection board 112 through the IIC host 120, so that the BMS protection board 112 can timely detect the fault location when a fault occurs, and the normal operation of the battery pack.

[0028] In other words, in the above embodiment, the communication board 113 plays a role of transfer, that is, some IIC interfaces in the communication board 113 are connected to the IIC host 120 as IIC slaves, which can further reduce the power consumption of the system.

[0029] Further, in some embodiments, the first port of the communication board 113 is connected to the seventh port of the BMS protection board 112 through the first data line, and the second port of the communication board 113 is connected to the eighth port of the BMS protection board 112 through the first clock line.

[0030] Among them, the first port can be the data line (Serial Data, SDA) pin of any IIC interface in the communication board 113, the second port can be the clock line pin (Serial clock line, SCL) of any IIC interface in the communication board 113, the seventh port can be the SDA pin of any IIC interface in the BMS protection board 112, and the eighth port is the SCL pin of any IIC interface in the BMS protection board 112. The communication board 113 monitors the data of the battery module 111 by using the first data line to obtain the monitoring data of the battery module 111, and the first clock line is used to control the rate and timing of data transmission in the first data line.

[0031] Further, in some embodiments, the third port of the communication board 113 is connected to the ninth port of the IIC host 120 through a second data line, and the fourth port of the communication board 113 is connected to the tenth port of the IIC host 120 through a second clock line.

[0032] Among them, the third port can be the SDA pin of any IIC interface in the communication board 113 except the first port, the fourth port can be the SCL pin of any IIC interface in the communication board 113 except the second port, the ninth port can be the SDA pin of the IIC interface used to connect to the communication board 112 in the IIC host 120, and the tenth port can be the SCL pin of the IIC interface used to connect to the communication board 113 in the IIC host 120. The communication board 113 sends the above monitoring data to the IIC host 120 through the second data line, and the second clock line is used to control the rate and timing of data transmission in the second data line.

[0033] Since the communication board 113 functions as an IIC slave in the present invention, in order to avoid the influence of problems such as ground wire loops and noise interference on IIC communication, preferably, the battery pack management system proposed by the present invention further includes at least one IIC isolator 130, wherein the communication board 113 is connected to the IIC host 120 through the IIC isolator 130.

[0034] Exemplarily, as Figure 2 shown, the IIC isolator 130 can be in the battery pack 110, that is, each battery pack 110 can include an IIC isolator 130.

[0035] Exemplarily, as Figure 3 shown, the IIC isolator 130 can be outside the battery pack 110, that is, at least one battery pack 110 shares an IIC isolator 130.

[0036] In other words, the IIC isolator 130 can be inside the battery pack 110 or outside the battery pack 110. The present disclosure does not limit this. That is, when the IIC isolator 130 is located inside the battery pack 110, the battery pack management system includes at least one IIC isolator 130; when the IIC isolator is located outside the battery pack 110, the battery pack management system includes one IIC isolator 130.

[0037] Further, the eleventh port of the IIC isolator 130 is connected to the fifth port of the communication board 113 through a third data line, the thirteenth port of the IIC isolator 130 is connected to the fifteenth port of the IIC host 120 through a fourth data line, the twelfth port of the IIC isolator 130 is connected to the sixth port of the communication board 113 through a third clock line, and the fourteenth port of the IIC isolator 130 is connected to the sixteenth port of the IIC host 120 through a fourth clock line.

[0038] Among them, the eleventh port and the thirteenth port can be the SDA pins in the IIC isolator, and the twelfth port and the fourteenth port can be the SCL pins in the IIC isolator.

[0039] Among them, the fifth port and the above-mentioned third port can be the same SDA pin in the communication board 113, or different SDA pins, which is not limited in this disclosure; the sixth port and the above-mentioned fourth port can be the same SCL pin in the communication board 113, or different SCL pins, which is not limited in this disclosure.

[0040] It should be understood that the above-mentioned fifteenth port refers to the SDA pin in the IIC host 120 for connecting to the IIC isolator 130, and the sixteenth port refers to the SCL pin in the IIC host 120 for connecting to the IIC isolator 130. The number of pins indicated by the fifteenth port and the sixteenth port can be one, or more than two, which is not limited in this disclosure.

[0041] In some embodiments, the IIC isolator 130 is a dual-channel bidirectional isolator, but it is not limited thereto, and it can also be a low-power single / directional IIC isolator, etc., which is not limited in this disclosure.

[0042] Further, based on the above Figures 1 to 3 shown embodiment, the positive electrode of the BMS protection board 112 is connected to the positive electrode of the battery module 111, and the negative electrode of the BMS protection board 112 is connected to the negative electrode of the battery module 111, so that the BMS protection board can monitor and manage the battery module 111.

[0043] Optionally, in some embodiments, the BMS protection board adopts a protection board based on the SH367309 chip. The BMS protection board 112 realizes battery monitoring and management of the battery module 111 and balance management of the integrated circuit through the SH367309 chip.

[0044] Optionally, in some embodiments, the communication board 113 adopts a communication board based on the STM32F103RCT6 integrated circuit to cooperate with the IIC isolator 130 of the ICNSi8100N to realize IIC isolation between the communication board 113 and the IIC host 120.

[0045] In summary, according to the battery pack management system proposed by the present utility model, the system includes: at least one battery pack and an IIC host; the battery pack at least includes: a communication board, a BMS protection board, and a battery module. The battery module is connected to the BMS protection board, the BMS protection board is connected to the communication board, and the communication board is connected to the IIC host. The BMS protection board is used to monitor data of the battery module, and the communication board is used to transmit the monitored data obtained by the BMS protection board to the IIC host. By connecting the communication board in at least one battery pack as an IIC slave to an IIC host, the present system enables an IIC host to obtain the monitored data of the battery modules in at least one battery pack, realizing one-to-many data monitoring, making the circuit layout of the battery pack management system simple, reducing the occupied space of the system, and reducing the system power consumption by using the communication board as an IIC slave. At the same time, the IIC host can be used to determine the fault location when the BMS protection board fails.

[0046] An embodiment of the present invention further provides an electronic device, including the aforementioned battery pack management system.

[0047] An embodiment of the present invention further provides a vehicle, including the aforementioned battery pack management system or the aforementioned electronic device.

[0048] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0049] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0050] In the present invention, unless otherwise clearly defined or limited, terms such as "installed", "connected", "linked", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or communicable with each other; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] In the present invention, unless otherwise clearly defined or limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0052] In the present invention, terms such as "an embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0053] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A battery pack management system, characterized in that, Comprising: At least one battery pack and one IIC host; The battery pack at least includes: a communication board, a BMS protection board and a battery module. The battery module is connected to the BMS protection board, the BMS protection board is connected to the communication board, the communication board is connected to the IIC host. The BMS protection board is used to monitor data of the battery module, and the communication board is used to transmit the monitored data obtained by the BMS protection board to the IIC host.

2. The system according to claim 1, wherein The first port of the communication board is connected to the seventh port of the BMS protection board through a first data line, and the second port of the communication board is connected to the eighth port of the BMS protection board through a first clock line.

3. The system according to claim 1, wherein The third port of the communication board is connected to the ninth port of the IIC host through a second data line, and the fourth port of the communication board is connected to the tenth port of the IIC host through a second clock line.

4. The system according to claim 1, characterized in that, The battery pack management system further includes at least one IIC isolator, and the communication board is connected to the IIC host through the IIC isolator.

5. The system according to claim 4, wherein The eleventh port of the IIC isolator is connected to the fifth port of the communication board through a third data line, the thirteenth port of the IIC isolator is connected to the fifteenth port of the IIC host through a fourth data line, the twelfth port of the IIC isolator is connected to the sixth port of the communication board through a third clock line, and the fourteenth port of the IIC isolator is connected to the sixteenth port of the IIC host through a fourth clock line.

6. The system according to claim 4, characterized in that When the IIC isolator is inside the battery pack, the battery pack management system includes at least one such IIC isolator; when the IIC isolator is outside the battery pack, the battery pack management system includes one such IIC isolator.

7. The system according to claim 4, wherein The IIC isolator is a dual-channel bidirectional isolator.

8. The system according to claim 1, wherein The positive electrode of the BMS protection board is connected to the positive electrode of the battery module, and the negative electrode of the BMS protection board is connected to the negative electrode of the battery module.

9. The system according to claim 1, characterized in that, The BMS protection board adopts a protection board based on the SH367309 chip.

10. An electronic device, comprising the battery pack management system according to any one of claims 1-9.

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