Personalized configuration-based power battery management system

Abstract

A personalized configuration-based power battery management system, comprising: a power battery configuration end (100) provided with a plurality of power battery connection interfaces (101) connected to power battery units (10); a power bus (200) connected to the power battery units by means of the power battery connection interfaces; a charging configuration end (300) provided with charging connection interfaces (301), charging devices (30) being connected to the power bus by means of the charging connection interfaces; a power supply configuration end (400) provided with power supply connection interfaces (401), an engineering device (40) being connected to the power bus by means of the power supply connection interfaces; and a main control unit (500) configured to control power charging and discharging operations of the power battery units, charging operations of the charging devices, and a power supply operation of the engineering device. A first number of connected groups of the power battery connection interfaces, a second number of connected groups of the charging connection interfaces, and a third number of connected groups of the power supply connection interfaces are determined on the basis of personalized configuration parameters. A personalized configuration architecture realizes the matching of personalized requirements, thereby increasing the range of application scenarios.

Description

Power battery management system based on personalized configuration Technical Field

[0001] The present invention relates to the technical field of battery management, and in particular to a power battery management system based on personalized configuration. Background Art

[0002] With the continuous development of new energy technologies and the continuous improvement of related industries in recent years, battery technology has been continuously applied to more fields, and power batteries have been increasingly used in the field of engineering equipment. As a result, people's requirements for power battery-related user experience are also constantly improving.

[0003] In the non-engineering equipment sector, power batteries are widely used in areas such as automobiles. Due to their high replicability, the standardization of power batteries in these areas is becoming increasingly mature. Specifically, for the same vehicle model or vehicle configuration, a single set of power battery configuration and control solutions can meet a wide range of needs. However, in the process of applying this solution to the engineering equipment field, technicians have discovered at least the following technical issues:

[0004] On the one hand, the demand in the field of engineering equipment is often not large, and a company may only need a few engineering equipment to meet its general usage needs; on the other hand, different companies have different power demand parameters for engineering equipment, and there may even be huge differences. Therefore, in the existing technology, each company is often provided with a customized power battery management system to meet its personalized needs. As a result, the cost of battery management system suppliers is high, and they are unable to output corresponding products on a large scale and in a systematic manner, which restricts the development of the company. Summary of the Invention

[0005] In order to overcome the above-mentioned technical problems existing in the prior art, an embodiment of the present invention provides a power battery management system based on personalized configuration. By improving the existing power battery management system and adopting a personalized configuration architecture, it can match any personalized needs of users, thereby reducing the production and manufacturing costs of battery manufacturers, expanding the application scenario range of the battery management system, and improving the user experience.

[0006] In order to achieve the above-mentioned objectives, an embodiment of the present invention provides a power battery management system based on personalized configuration, which includes: a power battery configuration end, which is provided with multiple groups of power battery connection interfaces, each group of power battery connection interfaces is connected to the corresponding power battery unit; a power bus, the power battery unit is connected to the power bus through the power battery connection interface of the corresponding group; a charging configuration end, which is provided with at least one group of charging connection interfaces, and the charging device is connected to the power bus through the charging connection interface of the corresponding group; a power supply configuration end, which is provided with at least one group of power supply connection interfaces, and the equipment input interface of the engineering equipment is connected to the power bus through the power connection interface of the corresponding group, and the engineering equipment includes at least one group of equipment input interfaces; a main control unit, which is respectively communicated with the power battery unit and the charging device, and is used to control the on and off operations of the power battery connection interface, the charging connection interface, and the power supply connection interface according to the communication information; wherein the first connection group number of the power battery connection interface, the second connection group number of the charging connection interface, and the third connection group number of the power supply connection interface are determined based on the user's personalized configuration parameters.

[0007] Preferably, the number of the power battery units is determined based on the personalized configuration parameters, the connection mode between the power battery units is determined based on the first number of connected groups, and the connection mode between the power battery units and the power bus is determined based on the personalized configuration parameters.

[0008] Preferably, the power battery management system also includes a voltage adjustment circuit, which includes a first form circuit and a second form circuit, the first form circuit and the second form circuit have different input / output voltages, and the power bus is connected to the power battery unit through the voltage adjustment circuit; the main control unit is also used to: perform circuit switching operations on the voltage adjustment circuit according to the current control state of the power battery unit.

[0009] Preferably, the first form circuit is a charging circuit, and the second form circuit is a discharge circuit independent of the charging circuit. The main control unit is used to: when the current control state is charging control, control the charging circuit to be in an on state; when the current control state is discharge control, control the discharge circuit to be in an on state; or the voltage adjustment circuit includes multiple first switch control devices configured in the current loop of the power battery unit, and the main control unit is used to: according to the current control state of the power battery unit, control the first switch control device to perform corresponding switching actions to switch the voltage adjustment circuit to a charging circuit or a discharge circuit corresponding to the current control state.

[0010] Preferably, the power bus is a strip bus, which includes power interfaces arranged in sequence on one side thereof and a user interface arranged on the other side thereof; or the power bus is a plate bus, which includes power interfaces arranged in sequence around it, and the user interface is arranged on a side of the plate bus where no power interface is arranged or in the center of the plate bus; or the power bus is a three-dimensional bus, which includes multiple surfaces, the power interface is arranged on at least one surface, and the user interface is arranged on a surface among the multiple surfaces where no power interface is arranged.

[0011] Preferably, the power battery unit is a plurality of power battery units with uniform electrical parameters; or the power battery unit includes at least one first power battery unit with first electrical parameters and at least one second power battery unit with second electrical parameters.

[0012] Preferably, the charging connection interface includes a positive charging interface, a positive charging circuit, a negative charging interface and a negative charging circuit. The positive charging interface is connected to the positive output interface of the power bus through the positive charging circuit, and the negative charging interface is connected to the negative output interface of the power bus through the negative charging circuit. The positive charging circuit is configured with a second switch control device, and the negative charging circuit is configured with a third switch control device.

[0013] Preferably, when the second connection group number is greater than 1: the charging connection interface is respectively connected to multiple charging devices with the same charging parameters; or the charging connection interface is connected to at least one charging device with a first charging parameter, and to at least one charging device with a second charging parameter.

[0014] Preferably, the third number of connected groups is equal to the number of groups of the device input interfaces; or the third number of connected groups is greater than the number of groups of the device input interfaces.

[0015] Preferably, when the third connection group number is greater than 1, the power supply connection interface is a plurality of power supply connection interfaces with the same power supply parameters; or the power supply connection interface includes at least one first power supply connection interface with a first power supply parameter, and at least one second power supply connection interface with a second power supply parameter.

[0016] Preferably, the power battery management system further includes a battery self-starting circuit, which is connected to the power bus and is used to provide a voltage corresponding to the main control unit to start the main control unit.

[0017] Preferably, the battery self-start circuit includes a first voltage conversion module and a self-start trigger port, the self-start trigger port is connected to the first voltage conversion module and the main control unit, and the first voltage conversion module is connected to the output interface of the power bus; or the battery self-start circuit includes an external start terminal and a self-start trigger port, the self-start trigger port is connected to the main control unit and the external start terminal, and the external start terminal provides a start voltage corresponding to the main control unit.

[0018] The technical solution provided by the present invention has at least the following technical effects:

[0019] By improving the existing power battery management system and adopting a configuration architecture based on the power bus, the corresponding power battery units, charging devices and power supply ports are configured according to the customer's personalized needs, so that a hardware framework can meet the various needs of various customers and be able to adapt to application scenarios with different voltages and different powers, thereby reducing its R&D, production and manufacturing costs, improving competitiveness, and at the same time meeting the personalized needs of customers and improving user experience.

[0020] Other features and advantages of the embodiments of the present invention will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are used to provide a further understanding of the embodiments of the present invention and constitute a part of the specification. Together with the following detailed description, they are used to explain the embodiments of the present invention, but do not constitute a limitation of the embodiments of the present invention. In the accompanying drawings:

[0022] FIG1 is a schematic structural diagram of a power battery management system based on personalized configuration provided by an embodiment of the present invention;

[0023] FIG2 is a schematic structural diagram of a power battery management system based on personalized configuration provided by a second embodiment of the present invention;

[0024] FIG3 is a schematic diagram of a voltage regulation circuit provided by an embodiment of the present invention;

[0025] FIG4 is a schematic diagram of a plate-shaped bus provided in an embodiment of the present invention;

[0026] FIG5 is a schematic diagram of a three-dimensional bus provided by an embodiment of the present invention;

[0027] FIG6 is a schematic diagram of power battery units with different configurations provided by an embodiment of the present invention;

[0028] FIG7 a is a schematic diagram of configuring a switch control device at a charging connection interface according to an embodiment of the present invention;

[0029] FIG7 b is a schematic diagram of connecting multiple charging connection interfaces in parallel according to an embodiment of the present invention;

[0030] FIG8 is a schematic diagram of configuring an interlocking circuit for a charging circuit and a power supply circuit according to an embodiment of the present invention;

[0031] 9 is a schematic diagram of a power supply connection interface configured with different parameters according to an embodiment of the present invention;

[0032] FIG10 a is a schematic diagram of a battery self-starting circuit provided in a first embodiment of the present invention;

[0033] FIG10 b is a schematic diagram of a battery self-starting circuit provided in accordance with a second embodiment of the present invention.

[0034] Description of Reference Numerals

[0035] 10 Power battery unit 11 First power battery unit

[0036] 12 Second power battery unit 100 Power battery configuration terminal

[0037] 101 Power battery connection interface 200 Power bus

[0038] 201 Power interface 202 User interface

[0039] 30 Charging device

[0040] 300 Charging configuration terminal 301 Charging connection interface

[0041] 3011 Charging positive terminal interface 3012 Charging negative terminal interface

[0042] 3013 Positive charging circuit 3014 Negative charging circuit

[0043] 40 Engineering Equipment 41 Equipment Input Interface

[0044] 400 Power supply configuration terminal 401 Power supply connection interface

[0045] 4013 Positive power supply circuit 4014 Negative power supply circuit

[0046] 411 First power supply connection interface 421 Second power supply connection interface

[0047] 422 Second voltage conversion module 50 Second switch control device

[0048] 500 Main control unit 60 Third switch control device

[0049] 620 Self-start trigger port 630 First voltage conversion module

[0050] 640 External startup terminal

[0051] 81 Sixth switch control device 82 Seventh switch control device

[0052] 83 Interlock circuit 810 First form circuit

[0053] 820 Second Form Circuit DETAILED DESCRIPTION

[0054] The following describes the specific implementation of the embodiment of the present invention in detail with reference to the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the embodiment of the present invention and is not used to limit the embodiment of the present invention.

[0055] The terms "system" and "network" in the embodiments of the present invention can be used interchangeably. "Multiple" refers to two or more. In view of this, "multiple" can also be understood as "at least two" in the embodiments of the present invention. "And / or" describes the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / ", unless otherwise specified, generally indicates that the previous and next associated objects are in an "or" relationship. In addition, it should be understood that in the description of the embodiments of the present invention, words such as "first" and "second" are only used to distinguish the purpose of description, and cannot be understood as indicating or implying relative importance, nor can they be understood as indicating or implying order.

[0056] The background technology of the present invention is first introduced below.

[0057] With the continuous development of new energy technologies, people are applying battery technology to more and more technical fields, such as new energy vehicles, based on the traditional application of batteries. Due to the advantages of automobiles such as strong configuration consistency, strong input and output standardization, and strong charging regulations, they are conducive to the standardization and large-scale application of power batteries. However, when applying power batteries to the field of industrial equipment, technicians have discovered at least the following technical problems:

[0058] On the one hand, industrial equipment is used in different industrial scenarios, and the power parameters required for different industrial scenarios are different, and the difference in power parameters in different industrial scenarios is relatively large. Therefore, the power battery system with the same configuration cannot be used in different industrial scenarios; on the other hand, the number of industrial equipment used in each industrial scenario is much smaller than that in the new energy vehicle field. Even in industrial scenarios with larger enterprise scale, the number of industrial equipment used may be only dozens. Therefore, the existing power battery management system cannot be simply applied to all industrial scenarios, that is, battery companies cannot carry out large-scale production, but need to customize corresponding power battery management systems for different industrial enterprises, which greatly increases the production and manufacturing costs of battery companies.

[0059] Please refer to Figure 1. An embodiment of the present invention provides a power battery management system based on personalized configuration, which includes: a power battery configuration terminal 100, which is provided with multiple groups of power battery connection interfaces 101, each group of power battery connection interfaces 101 is connected to a corresponding power battery unit 10; a power bus 200, wherein the power battery unit 10 is connected to the power bus 200 through the power battery connection interface 101 of the corresponding group; a charging configuration terminal 300, which is provided with at least one group of charging connection interfaces 301, wherein a charging device 30 is connected to the power bus 200 through the charging connection interface 301 of the corresponding group; a power supply configuration terminal 400, which is provided with at least one group of power supply connection interfaces 401 , the device input interface 41 of the engineering equipment 40 is connected to the power bus 200 through the power supply connection interface 401 of the corresponding group, and the engineering equipment 40 includes at least one group of device input interface 41; the main control unit 500 is respectively communicated with the power battery unit 10 and the charging device 30, and is used to control the on and off operations of the power battery connection interface 101, the charging connection interface 301, and the power supply connection interface 401 according to the communication information; wherein, the first connection group number of the power battery connection interface 101, the second connection group number of the charging connection interface 301, and the third connection group number of the power supply connection interface 401 are determined based on the user's personalized configuration parameters.

[0060] In one possible implementation, an industrial enterprise (i.e., a user) needs to configure a corresponding power battery management system for its engineering equipment 40. The user first determines its personalized configuration parameters. The user's personalized configuration parameters include, but are not limited to, required output voltage, required output current, required output power, configurable charging voltage, configurable charging current, configurable charging power, required number of power supply ports, and required output power type. For example, in this embodiment, the industrial enterprise needs to configure a power battery system with an output voltage of 160V and an output current of 600A. Based on this personalized configuration requirement, the user first determines the required number of power battery units 10.

[0061] In an embodiment of the present invention, the number of the power battery units 10 is determined based on the personalized configuration parameters, the connection method between the power battery units 10 is determined based on the first number of connected groups, and the connection method between the power battery units 10 and the power bus 200 is determined based on the personalized configuration parameters.

[0062] In one possible embodiment, the power battery unit 10 is a battery pack unit with a packaged structure, including but not limited to packaged cells, battery modules, and battery packs. Due to the very limited installation space of industrial equipment, the heat dissipation space of the power battery system is very small. To ensure its safety in use, the power battery unit 10 is preferably composed of at least one low-internal resistance cell, wherein the internal resistance of the low-internal resistance cell is less than or equal to 0.5 mΩ, so as to maximize the use of self-heating methods and reduce the investment cost of heat dissipation equipment. For example, in one embodiment, the power battery unit 10 is a packaged battery pack, each battery pack having a standard configuration of 80V output voltage and 200A output current. Therefore, it can be determined that the industrial enterprise needs to configure 6 battery packs, wherein each 2 battery packs are connected in series to form a battery pack combination with an output voltage of 160V and an output current of 200A. Then, three such battery packs are connected in parallel to form a power battery pack combination with an output voltage of 160V and an output current of 600A.

[0063] During the specific implementation process, in order to reduce the customization cost of battery manufacturers, battery manufacturers can determine a variety of different configuration methods according to actual needs. For example, in the first configuration method, the power battery management system includes a power battery configuration terminal 100 provided with 3 groups of power battery connection interfaces 101, and at least 3 groups of power battery units 10 are connected to the corresponding power battery connection interfaces 101 according to the user's personalized configuration needs; in the second configuration method, the power battery management system includes a power battery configuration terminal 100 provided with 3 groups of power battery connection interfaces 101, but the user only needs to use 2 groups of power battery connection interfaces 101. During the specific configuration process, the user can connect 2 groups of power battery units 10 to the corresponding power battery connection interfaces 101. At this time, the main control unit 500 performs corresponding control operations according to the connected power battery units 10.

[0064] In another possible implementation, in order to retain a certain power margin, the battery manufacturer connects three groups of power battery units 10 to the above-mentioned three groups of power battery connection interfaces 101, but the main control unit 500 only controls the on and off operations of two groups of power battery connection interfaces 101, thereby achieving "soft control" of the first connection number of the power battery connection interfaces 101 to meet the actual needs of customers.

[0065] Based on the same principle, the main control unit 500 can control the second connection group number of the charging connection interface 301 and the third connection group number of the power supply connection interface 401 according to the user's personalized configuration parameters according to actual needs. That is, in an embodiment of the present invention, the first connection number of the power battery connection interface 101, the second connection group number of the charging connection interface 301, and the third connection group number of the power supply connection interface 401 can all be less than or equal to their actual set numbers to meet the needs of personalized configuration, and at the same time be beneficial to the standardized production of battery manufacturers, so that while meeting the different configuration requirements of different users and different application scenarios, it can maximize the standardized production of products, greatly reducing its product implementation cost when meeting non-standard application scenarios and improving the competitiveness of the enterprise.

[0066] The above configuration of the power battery unit 10 is only a preferred embodiment. However, in actual application, due to the very limited space of the engineering equipment, it may be impossible to configure a corresponding power battery connection interface 101 for each power battery unit 10 (for example, the remaining space on a certain power equipment can only be configured with 4 groups of power battery connection interfaces 10, but 8 power battery units 10 are required to meet the actual power demand). Therefore, in order to solve the above technical problem, please refer to Figure 2. In another embodiment, the user needs to configure a power battery system with a voltage of 320V and a current of 800A. In order to reduce space occupation, four groups of power battery connection interfaces 101 are set. First, the four groups of power battery units 10 are respectively connected to the corresponding power battery connection interfaces 101. Then, a group of power battery units 10 is directly connected in series behind each group of power battery units 10 to form four groups of power battery packs with a voltage of 320V and a current of 200A. Then, these four groups of power battery packs are connected in parallel to the power bus 200 to form a power battery system with a voltage of 320V and a current of 800A, thereby meeting customer needs.

[0067] Of course, technicians can configure power battery units 10 with other electrical parameters according to actual needs, or adopt other connection methods of power battery units 10 to meet actual needs. For example, they can be connected in partial direct series or partial parallel to achieve higher flexibility in capacity configuration, which will not be elaborated here.

[0068] That is, according to the personalized configuration parameters of the industrial enterprise, the number of power battery units 10 that need to be configured and their connection methods are determined. The connection methods include but are not limited to series connection, parallel connection, and series-parallel mixed connection. Each power battery unit 10 has a positive battery electrode and a negative battery electrode, which are connected to the corresponding power battery connection interface 101 of the power battery configuration end 100 through different power lines.

[0069] After determining the power battery units 10 to be configured and their connection methods, each power battery unit 10 is connected to the corresponding group of power battery connection interfaces 101 (power battery positive electrode-power battery positive electrode connection interface, power battery negative electrode-power battery negative electrode connection interface), and then the power battery connection interface 101 is connected to the power bus 200 in the above-mentioned connection method, thereby realizing on-demand and personalized configuration of the power battery.

[0070] In an embodiment of the present invention, a personalized power battery configuration is determined according to the user's personalized needs, and the corresponding installation operation is performed in a manner similar to building blocks, thereby meeting the user's personalized needs. At the same time, the above method can greatly reduce the production and manufacturing costs of battery manufacturers, thereby improving product competitiveness and increasing social benefits.

[0071] However, in actual application, simply connecting the power battery unit 10 and the power bus 200 in series and parallel cannot meet a wider range of needs. For example, in one implementation scenario, the user expects to charge the battery system with high voltage (for example, 320V) to greatly improve the charging efficiency and reduce the charging time. When discharging, it is expected to output low voltage (for example, 80V) to meet the actual needs of the engineering equipment 40. However, the existing power battery management systems can only output fixed and identical input and output voltages, and thus cannot meet the actual needs of users.

[0072] In order to solve the above technical problems, in an embodiment of the present invention, the power battery management system also includes a voltage adjustment circuit, which includes a first form circuit 810 and a second form circuit 820. The input / output voltages of the first form circuit 810 and the second form circuit 820 are different. The power bus 200 is connected to the power battery unit 10 through the voltage adjustment circuit; the main control unit 500 is also used to: perform circuit switching operations on the voltage adjustment circuit according to the current control state of the power battery unit 10.

[0073] Please refer to Figure 3. In the first embodiment, the first form circuit 810 is a charging circuit, and the second form circuit 820 is a discharging circuit. For example, the charging circuit is a series circuit. In this embodiment, the power battery system currently configured by the user is a system with an output voltage of 80V composed of 4 power battery units 10. When charging, the user expects to be able to charge at a high voltage of 320V to improve the charging efficiency. Therefore, the main control unit 500 controls the charging circuit to be turned on (the discharging circuit to be disconnected). Specifically, for example, switching devices (such as relays) are respectively configured on the charging circuit and the discharging circuit, and the corresponding relays are controlled to open or close when necessary to turn on or off the corresponding circuit. In combination with this embodiment, after the main control unit 500 controls the charging circuit to be turned on, the above-mentioned four power battery units 10 are connected in series. At this time, if a charging gun with a charging voltage of 320V is inserted, charging can be performed with high voltage and high power, thereby greatly improving the charging efficiency; when charging is completed, the main control unit 500 controls the charging circuit to disconnect and turn on the discharge circuit. For example, the discharge circuit is a parallel circuit. At this time, the four power battery units 10 are switched to a parallel connection. When outputting voltage to the engineering equipment 40, low voltage and high current output can be performed, thereby meeting the user's personalized and dynamic configuration needs.

[0074] It should be noted that the accompanying drawings only show electrical connection diagrams of the power battery unit 10, the voltage regulation circuit and the power bus 200, and cannot be regarded as a limitation on the physical connection relationship of the above components. Technicians can choose appropriate physical connection methods according to actual needs. For example, technicians can connect some power battery units 10 to the power bus 200 through the voltage regulation circuit, and the rest directly to the power bus 200 to meet greater configuration flexibility requirements. No further details will be given here.

[0075] However, the above-mentioned implementation method of the voltage regulation circuit requires configuring multiple circuit modes in the main control cabinet, resulting in a significant increase in the number of connections and plug interfaces, thereby increasing the risk of leakage accidents, and at the same time causing a certain amount of pressure on the space occupied in the main control cabinet. Therefore, the present invention provides another implementation method.

[0076] In the second embodiment, at least one first switching device (not shown) is configured in the current loop of each power battery cell 10. It should be noted that the switching devices described in this embodiment of the present invention can be any power switching device such as a relay, a gallium nitride power device, or a thyristor. By performing different switching control operations on the first switching device, the connection relationship of each power battery cell 10 is dynamically switched. During charging, the connection relationship is switched to a series charging circuit; during discharging, the connection relationship is switched to a parallel discharging circuit. This achieves dynamic management of the voltage regulation circuit and meets the personalized needs of users.

[0077] Of course, by controlling the above-mentioned first switching device, it is also possible to switch the connection relationship to a parallel charging circuit during charging to achieve low-voltage charging; when discharging, the connection relationship is switched to a series discharge circuit to achieve high-voltage discharge, so as to meet the actual scenario requirements of low charging and high discharging, effectively compatible with low-voltage charging guns, reduce the reconstruction of ground fixed facilities, and allow high-power high-voltage equipment to be charged and used normally, meeting the personalized needs of customers.

[0078] In an embodiment of the present invention, a voltage adjustment circuit is provided between the power bus 200 and the power battery unit 10, thereby further meeting the personalized needs of users, improving the compatibility and applicable scenario range of the power battery management system, further reducing the production and manufacturing complexity of battery companies, reducing their costs, and improving the competitiveness of the companies.

[0079] In the prior art, since the power lines of power batteries are often relatively thick and difficult to bend, the power bus 200 often adopts a strip bus. In the process of connecting the power battery unit 10 to the power bus 200, the power line of the power battery unit 10 is generally connected directly to one side of the power bus 200, for example, connected to the power interface 201 arranged on one side of the power bus 200, and the other side serves as the output end of the power bus 200, specifically, it can be the user interface 202 arranged.

[0080] However, in actual application, due to the thickness of the power line and the spacing distance based on electrical safety considerations, the above-mentioned strip bus installation method takes up more space, and the space available for configuring the power battery system on the engineering equipment 40 is relatively small, so technicians proposed an improvement plan.

[0081] Referring to Figure 4 , in one possible embodiment, the power bus 200 is a planar bus comprising power interfaces 201 arranged sequentially around the planar bus. The user interface 202 is located on a side of the planar bus where no power interfaces 201 are located, or in the center of the planar bus. During installation, the power lines are sequentially connected to the power interfaces 201 arranged along the planar bus, while the user interface 202 is located on a side where no power interfaces 201 are located, or in the center of the planar bus. This electrically avoids the power lines of the power battery units 10, ensuring their safe use.

[0082] Furthermore, referring to FIG5 , in another possible embodiment, the power bus 200 is a three-dimensional bus comprising multiple surfaces, the power interface 201 being disposed on at least one surface, and the user interface 202 being disposed on a surface of the multiple surfaces not provided with the power interface 201. During installation, a technician sequentially connects the power line to the power interfaces 201 disposed on different surfaces, and the user interface 202 is disposed on the surface not provided with the power interface 201. Preferably, the surface provided with the user interface 202 faces the device input interface of the engineering equipment 40.

[0083] In an embodiment of the present invention, by improving the shape and structure of the power bus 200, the space occupied by the power bus 200 in the main control cabinet is greatly reduced, the space utilization is improved, and the technical effect of configuring a power battery system with greater output power in a smaller space is achieved, thereby meeting user needs and improving user experience.

[0084] In the prior art, the power battery cells 10 configured in a power battery management system are often multiple standard battery cells with the same electrical parameters, such as a standard battery pack. However, in actual use, to meet the more personalized needs of customers and the actual production and operation requirements of battery companies, the power battery cells 10 are further configured to include at least one first power battery cell 11 with first electrical parameters and at least one second power battery cell 12 with second electrical parameters.

[0085] For example, please refer to Figure 6. In one possible implementation, based on the user's personalized needs, in order to adapt to the limited battery space of the user's vehicle, or relatively special voltage requirements, when it is impossible to use all power battery units with single electrical parameters to meet the user's requirements (for example, in an application scenario with an output requirement of 200A and 200V), the customer is configured with two first power battery units 11 with an output voltage of 80V and an output current of 200A, which are connected in series; at the same time, the user is configured with two second power battery units 12 with an output voltage of 40V and an output current of 100A, which are connected in parallel. Then, the series-connected first power battery units 11 and the parallel-connected second power battery units 12 are connected in series to form a power battery combination with an output voltage of 200V and an output current of 200A, which is then connected to the power bus 200 for power output.

[0086] It should be noted that the above-mentioned electrical parameters include but are not limited to output voltage, output current, operating temperature, operating humidity, operating pressure, battery curve and other electrical parameters. In order to meet the different needs of users or battery companies, a power battery unit 10 that meets the above-mentioned electrical parameters can be used according to actual conditions. No further details will be given here.

[0087] In an embodiment of the present invention, by personalizing and non-standardizing the power battery units that constitute the power battery management system, combined with the power battery management architecture provided by the embodiment of the present invention, it is possible to further meet the personalized needs of users, meet the actual production and operation needs of enterprises, expand the range of applicable scenarios of the product, and improve user experience. At the same time, power battery units with different parameters have different volume shapes, which facilitates more flexible arrangement by technicians and achieves better space utilization.

[0088] After determining the configuration requirements of its power battery unit 10, its charging configuration is further determined based on its personalized configuration parameters. Please refer to Figure 7a. In an embodiment of the present invention, the charging connection interface 301 includes a positive charging interface 3011, a positive charging circuit 3013, a negative charging interface 3012 and a negative charging circuit 3014. The positive charging interface 3011 is connected to the positive output interface of the power bus 200 through the positive charging circuit 3013, and the negative charging interface 3012 is connected to the negative output interface of the power bus 200 through the negative charging circuit. The positive charging circuit 3013 is configured with a second switch control device 50, and the negative charging circuit 3014 is configured with a third switch control device 60.

[0089] In one possible implementation, a charging device 30 with a 160V output voltage is configured in an industrial enterprise application scenario. The charging device 30 includes, but is not limited to, a charging pile, a dedicated charging socket, a charging station, etc. For example, in this embodiment, the charging device 30 is a charging gun. The charging gun can meet the rated charging requirements of the power battery pack combination, so a single charging gun is sufficient for the power battery pack combination.

[0090] In actual use, when a charging gun is plugged into the charging connector, the main control unit 500 receives a charging request through communication with the gun. For example, the charging connector also includes a charging communication interface, through which the main control unit 500 communicates with the charging gun. At this point, the main control unit 500 first determines whether preset charging conditions are currently met. These preset charging conditions include, but are not limited to, each power battery unit 10 (and its corresponding relay) being connected, each set of power supply connectors being disconnected, and a confirmed charging protocol. Upon determining that the preset charging conditions are currently met, the main control unit 500 controls the second switch control device 50 configured in the positive charging circuit and the third switch control device 60 configured in the negative charging circuit to turn on, thereby completing the charging circuit and enabling charging.

[0091] Because the input and output currents in power battery systems are extremely large, relays may become stuck or malfunction due to aging after extended use, leading to a direct connection between the charging and power supply terminals, posing a significant safety hazard. Therefore, in an embodiment of the present invention, by configuring switch devices in both the positive charging circuit 3013 and the negative charging circuit 3014, sticking or malfunctioning of the switch device in either charging circuit will not affect the disconnection control of the entire charging circuit, effectively resolving the resulting safety hazard. Furthermore, the main control unit 500 can promptly detect a faulty switch device and initiate an alarm, thereby ensuring the safety of the entire power battery management system.

[0092] Please refer to Figure 7b. In the second embodiment, based on the personalized configuration parameters of a second industrial enterprise, the rated charging parameters of its power battery pack combination are determined to be a voltage of 160V and a current of 400A. Although a charging device 30 with an output voltage of 160V is configured in the application scenario of the second industrial enterprise, the charging current of the charging device 30 is only 200A, so the charging efficiency is low; therefore, based on its personalized configuration parameters, it is determined that 1-2 charging devices 30 need to be configured for it. When 2 are configured, the maximum charging efficiency can be achieved by simultaneously inserting the two charging devices 30 and connecting the charging connection interfaces 301 to which they are connected in parallel.

[0093] In an embodiment of the present invention, by providing the corresponding charging interface configuration according to the user's personalized configuration requirements and the charging parameters that the user can provide, it is possible to meet the customer's arbitrary charging configuration requirements, greatly improving the compatibility range of the power battery management system, reducing the company's production and manufacturing complexity, and reducing costs.

[0094] In actual application, industrial enterprises may configure a variety of charging devices 30 in application scenarios based on actual needs (for example, based on safety considerations, cost considerations, etc.), such as configuring at least one fast charging gun and at least one slow charging gun, or configuring two groups of fast charging interfaces to improve charging efficiency. When charging, a fast charging gun and a slow charging gun can be inserted at the same time. When the battery power is low, both charging guns perform charging operations. When the battery power reaches a certain value (for example, 80%), the main control unit 500 controls the fast charging gun to stop charging, and controls the slow charging gun to continue charging until the battery is fully charged, so as to achieve battery balancing and optimization.

[0095] In another possible implementation, in order to meet the unified requirements of charging voltage and improve the overall charging efficiency of the charging device 30, the charging connection interface 301 can be connected to a charging device with a first charging voltage and a first charging current, and to a charging device with a first charging voltage and a second charging current, respectively, to meet the above requirements and achieve better and personalized needs.

[0096] In the embodiment of the present invention, by adopting charging devices 30 of various specifications, the user's personalized charging needs can be met, the user experience is improved, the user's configuration cost is reduced, and at the same time, the damage to the battery during the charging process is reduced, thereby increasing the battery life.

[0097] At this point, the number of power connection interfaces 401 configured is further determined based on the personalized configuration parameters of the industrial enterprise. Based on the same principle, in this embodiment of the present invention, the power connection interface 401 may also include a corresponding positive power supply interface (not shown), a positive power supply circuit 4013, a negative power supply interface (not shown), and a negative power supply circuit 4014. The positive power supply circuit may be configured with a fourth switch control device (not shown), and the negative power supply circuit may be configured with a fifth switch control device (not shown).

[0098] In one possible embodiment, the user's engineering equipment 40 is equipped with a device input interface 41, requiring a single power input. Therefore, a set of power connection interfaces 401 is configured for it on the power configuration terminal 400. After the user plugs the device input interface 41 of the engineering equipment 40 into the power connection interface 401, the main control unit 500 may first determine whether preset power supply conditions are currently met. These preset power supply conditions include, but are not limited to, each power battery unit 10 (and its corresponding relay) being connected, each set of charging connection interfaces being disconnected, and a power supply communication protocol being determined. After determining that the preset power supply conditions are currently met, the main control unit 500 controls the fourth switch control device configured in the positive power supply circuit and the fifth switch control device configured in the negative power supply circuit to close, thereby outputting power to the engineering equipment 40.

[0099] In an embodiment of the present invention, by configuring switching devices at both the positive and negative poles of the power supply circuit, effective protection of the engineering equipment 40 is achieved, which can effectively avoid safety accidents caused by adhesion or failure of any switching device in the power supply circuit, thereby improving the safety of the power battery management system.

[0100] However, in actual use, a user's engineering equipment 40 often requires more than one device input interface 41. For example, in one embodiment, the engineering equipment 40 to be used includes two device input interfaces: one device input interface 41 is used to drive the motor, and the other device input interface 41 is used to drive other power components (such as a hydraulic manipulator). Therefore, two sets of power connection interfaces 401 are configured for the equipment, each set of power connection interfaces 401 being connected to a corresponding device input interface 41 to provide power to the device.

[0101] In the second embodiment, the engineering equipment 40 includes three device input interfaces 41, of which two device input interfaces 41 are power input interfaces, respectively used to drive different power components, and the third device input interface 41 is a low-voltage input interface, used to power low-voltage components (such as display screens, etc.). Therefore, three groups of power supply connection interfaces 401 are configured for it, of which the third power supply connection interface 401 is connected to the voltage conversion module configured on the engineering equipment 40 to provide low-voltage power for the engineering equipment 40.

[0102] In an embodiment of the present invention, a personalized number of power supply interfaces is provided to the user based on the user's personalized needs, and the user no longer needs to configure multiple power battery systems or multiple energy supply systems for the engineering equipment 40, thereby greatly reducing the user's financial expenditure and reducing the space occupied on the engineering equipment 40, meeting the user's personalized needs and improving the user experience.

[0103] During the application process, it is easy for those skilled in the art to know that since engineering equipment is often high-current equipment, the switching devices used therein, and the relays with higher safety, are often more expensive. Therefore, if relays are configured in each power supply or charging circuit, the user's cost will increase.

[0104] In order to solve the above technical problems, please refer to Figure 8. In an embodiment of the present invention, the charging connection interface 301 includes a positive charging circuit 3013 and a negative charging circuit 3014, and the power supply connection interface 401 includes a positive power supply circuit 4013 and a negative power supply circuit 4014. A sixth switch control device 81 is configured on the positive charging circuit 3013 or the negative charging circuit 3014, and a seventh switch control device 82 is configured on the positive power supply circuit 4013 or the negative power supply circuit 4014. An interlocking circuit 83 is set between the sixth switch control device 81 and the seventh switch control device 82.

[0105] In one possible embodiment, the main control unit 500 obtains a power supply request sent from the engineering equipment 40 at a certain moment, and therefore disconnects the sixth switch control device 81 and closes the seventh switch control device 82 to perform the power supply operation. After the power supply is completed, the main control unit 500 controls the seventh switch control device 82 to disconnect. However, at this time, the seventh switch control device 82 is stuck and not effectively disconnected. In the process of the main control unit 500 controlling the sixth switch control device 81 to close according to the charging request, the interlock circuit 83 is triggered because the seventh switch control device 82 cannot be disconnected, resulting in the sixth switch control device 81 unable to close, that is, the power battery unit 10 cannot be charged, thereby avoiding the electric energy input by the charging device 30 from being directly output to the engineering equipment 40, thereby effectively protecting the safety of the engineering equipment 40.

[0106] Furthermore, in order to ensure the safety of the power battery system, a general switch control device can be set between the charging device 30 and the charging connection interface 301, and a general switch device can be set between the engineering equipment 40 and the power supply connection interface 401. When the main control unit 500 detects that there may be a relay adhesion, it can control the corresponding general switch device to disconnect to ensure that all interfaces can be effectively disconnected, thereby improving safety of use.

[0107] In an embodiment of the present invention, by adopting a relay combined with an interlocking circuit, a technical solution is implemented to achieve the best safety control effect with the lowest control cost, effectively protecting the user's safety and ensuring the power supply safety of the engineering equipment 40.

[0108] During implementation, the engineering equipment 40 typically includes power-driven components and low-voltage driven components. The power-driven components are driven by the power output of the power battery management system. In the prior art, low-voltage driven components, such as display screens, alarms, and sensors, are often powered by additional low-voltage batteries installed on the engineering equipment 40. Furthermore, as electronic components become increasingly functional and ubiquitous, existing engineering equipment 40 may face demands for functional expansion, such as the need to add additional surveillance cameras. This requires additional low-voltage power, causing some inconvenience for users.

[0109] To address the aforementioned technical issues, the third number of connected power connection interfaces 401 configured on the power supply configuration terminal 400 is greater than the number of device input interfaces. For example, in one possible implementation, three groups of power connection interfaces 401 are provided on the power supply configuration terminal 400: one group of power connection interfaces 401 is used to power the engineering equipment 40, a second group of power connection interfaces 401 is used to power the lifting device, and a third group of power connection interfaces 401 is left unused to meet the additional power needs of the engineering equipment 40. In this embodiment, the three power connection interfaces 401 have the same power supply parameters (including but not limited to parameters such as supply voltage, supply current, and supply power).

[0110] In actual application, since the additional power supply requirements on the engineering equipment 40 may be different from the power supply requirements and other parameters such as the power supply voltage, the multiple power supply connection interfaces 401 provided with the same power supply parameters cannot meet user needs. Users need to additionally configure a voltage conversion module to meet actual needs, which causes additional expenses for users and reduces user experience.

[0111] Please refer to Figure 9. In the second embodiment, the power supply connection interface 401 includes at least one first power supply connection interface 411 having a first power supply parameter, and at least one second power supply connection interface 421 having a second power supply parameter. In the specific implementation process, for example, the first power supply connection interface 411 is directly connected to the output end of the power bus 200, and an additional second voltage conversion module 422 is also configured between the power bus 200 and the second power supply connection interface 421. Through the second voltage conversion module 422, the output voltage of the power bus 200 can be converted into a low voltage that can be used by the user to meet actual use. In order to ensure the reliability of power output, the above-mentioned vacant third group of power supply connection interfaces 401 can be used only to output low voltage to meet the low voltage and low current power supply requirements.

[0112] Each power battery unit 10 also includes a first communication line, each charging device 30 also includes a second communication line, and each device input interface 41 may also include a third communication line. The main control unit 500 is connected to each power battery unit 10 through the first communication line to control the power battery unit 10 to perform corresponding power charging and discharging operations. Specifically, a power battery communication interface is set at a position adjacent to the power battery connection interface 101 on the battery box, and the main control unit 500 is connected to the first communication line through the power battery communication interface. The input / output end of each power battery unit 10 also includes a switching device, for example, the switching device is a relay. The main control unit 500 controls the disconnection or connection of the corresponding power battery unit 10 by controlling the opening and closing of each relay to control it to perform corresponding power charging and discharging operations.

[0113] The main control unit 500 is connected to the charging device 30 through a second communication line to control the charging device 30 to perform corresponding charging operations. For example, in one embodiment, a charging communication interface is set at a position adjacent to the charging connection interface 301 on the battery box. The main control unit 500 is connected to the second communication line through the charging communication interface. The technician inserts the charging device 30 into the corresponding charging connection interface 301 at a certain moment. At this time, the main control unit 500 obtains a charging request. If the main control unit 500 determines that the current power battery management system meets the charging conditions, it controls the charging device 30 to perform the corresponding charging operation.

[0114] Based on the same principle, the main control unit 500 can also be connected to the device input interface 41 via a third communication line to control the power supply operation for the engineering equipment 40. Of course, it should be noted that communication between the main control unit 500 and the device input interface 41 is not required. When the power equipment is connected to the power connection interface 401 via the device input interface 41, the main control unit 500 can directly control the power output to the power equipment without the need for communication or judgment.

[0115] In existing power battery management systems, because the voltage and current output by the power battery are significantly higher than those of the main control unit 500, starting or operating the main control unit 500 often relies on an external power source (e.g., an external low-voltage battery). For example, in a power battery management system for a new energy vehicle, the main control unit requires power from an external battery for startup, after which the startup main control unit controls the power battery output. However, in the field of engineering equipment, this approach has caused some user frustration due to installation space limitations, cost constraints, or the desire to simplify the design of the engineering equipment itself.

[0116] In an embodiment of the present invention, the power battery management system further includes a battery self-starting circuit, which is connected to the power bus 200 and is configured to provide a voltage corresponding to the main control unit to start the main control unit 500 .

[0117] Referring to FIG. 10 a , in a first embodiment, the battery self-start circuit includes a first voltage conversion module 630 and a self-start trigger port 620. The self-start trigger port 620 is connected to the first voltage conversion module 630 and the main control unit 500. The first voltage conversion module 630 is connected to the output interface of the power bus 200. Specifically, the first voltage conversion module 630 is connected to the power bus 200 and performs low-voltage conversion on the voltage output by the power bus 200 to output a low voltage for driving the main control unit 500. In this embodiment, the self-start trigger port 620 is connected to a start button configured in the cab of the engineering equipment 40. When the user needs to start the engineering equipment 40, they press the start button in the cab to connect the first voltage conversion module 630 to the main control unit 500 through the self-start trigger port 620. At this time, the main control unit 500 starts and starts the entire power supply system.

[0118] In an embodiment of the present invention, by configuring a battery self-starting circuit for the power battery management system, it can perform self-starting without relying on an external low-voltage battery, greatly improving control convenience and enhancing user experience.

[0119] During actual use, technicians also found that in some application scenarios of engineering equipment, the use of engineering equipment 40 is strictly restricted, for example, it can only be used by technicians with permission or authority, and the existing startup method cannot restrict or identify the users of engineering equipment 40.

[0120] Referring to FIG. 10 b , in the second embodiment, the battery self-start circuit includes an external start-up terminal 640 and a self-start trigger port 620. The self-start trigger port 620 is connected to the main control unit 500 and the external start-up terminal 640. The external start-up terminal 640 provides a start-up voltage corresponding to the main control unit 500. Specifically, the external start-up terminal 640 is a terminal device with a command sending function, such as, but not limited to, a personal computer, a host computer, a tablet computer, a laptop computer, a dedicated handheld device, etc. The external start-up terminal 640 can provide the corresponding start-up voltage to the main control unit 500.

[0121] During use, the technician needs to start the current engineering equipment 40, so he first logs in to the above-mentioned external startup terminal 640, for example, by entering an authorized account and password or password, and then clicks the start button on the operation interface of the external startup terminal 640 to send a startup instruction to the self-start trigger port 620. The self-start trigger port 620 connects the main control unit 500 and the external startup terminal 640 according to the startup instruction. At this time, the main control unit 500 starts according to the startup voltage provided by the external startup terminal 640 and performs system initialization operations.

[0122] In an embodiment of the present invention, by adopting a communication control and drive method based on an external terminal, the main control unit 500 can be self-started without configuring an additional low-voltage battery or a first power conversion module 630. At the same time, the safety of the personnel who start the engineering equipment 40 can be effectively verified, thereby improving the safety of the use of the engineering equipment 40.

[0123] The above describes in detail the optional implementation methods of the embodiments of the present invention in conjunction with the accompanying drawings. However, the embodiments of the present invention are not limited to the specific details in the above implementation methods. Within the technical concept of the embodiments of the present invention, various simple modifications can be made to the technical solutions of the embodiments of the present invention, and these simple modifications all fall within the scope of protection of the embodiments of the present invention.

[0124] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner, including physical segmentation and separation, unless there is any contradiction. To avoid unnecessary repetition, the embodiments of the present invention will not further describe various possible combinations.

[0125] In addition, various implementations of the embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the embodiments of the present invention, they should also be regarded as the contents disclosed in the embodiments of the present invention.

Claims

1. A power battery management system based on personalized configuration, characterized in that: The power battery management system includes: A power battery configuration end (100) is provided with a plurality of groups of power battery connection interfaces (101), each group of power battery connection interfaces (101) being connected to a corresponding power battery unit (10); A power bus (200), wherein the power battery units (10) are connected to the power bus (200) via power battery connection interfaces (101) of a corresponding group; A charging configuration terminal (300) is provided with at least one group of charging connection interfaces (301), and the charging device (30) is connected to the power bus (200) via the corresponding group of charging connection interfaces (301); A power supply configuration terminal (400) is provided with at least one set of power supply connection interfaces (401), wherein the device input interface (41) of the engineering device (40) is connected to the power bus (200) via the corresponding set of power supply connection interfaces (401), and the engineering device (40) includes at least one set of device input interfaces (41); a main control unit (500) which is in communication connection with the power battery unit (10) and the charging device (30), respectively, and is used to control the on / off operation of the power battery connection interface (101), the charging connection interface (301), and the power supply connection interface (401) according to communication information; The first connection group number of the power battery connection interface (101), the second connection group number of the charging connection interface (301), and the third connection group number of the power supply connection interface (401) are determined based on the user's personalized configuration parameters.

2. The power battery management system according to claim 1, characterized in that: The number of the power battery units (10) is determined based on the personalized configuration parameters, the connection mode between the power battery units (10) is determined based on the first number of connected groups, and the connection mode between the power battery units (10) and the power bus (200) is determined based on the personalized configuration parameters.

3. The power battery management system according to claim 2, characterized in that: The power battery management system further comprises a voltage adjustment circuit, the voltage adjustment circuit comprising a first form circuit (810) and a second form circuit (820), the first form circuit (810) and the second form circuit (820) having different input / output voltages, the power bus (200) being connected to the power battery unit (10) via the voltage adjustment circuit; the main control unit (500) is further configured to: According to the current control state of the power battery unit (10), a circuit switching operation for the voltage adjustment circuit is performed.

4. The power battery management system according to claim 3, characterized in that: The first form circuit (810) is a charging circuit, the second form circuit (820) is a discharging circuit independent of the charging circuit, and the main control unit (500) is used to: when the current control state is charging control, control the charging circuit to be in a conducting state; when the current control state is discharging control, control the discharging circuit to be in a conducting state; or The voltage regulation circuit comprises a plurality of first switch control devices arranged in a current loop of the power battery unit (10), and the main control unit (500) is used to control the first switch control devices to perform corresponding switching actions according to the current control state of the power battery unit (10), so as to switch the voltage regulation circuit to a charging circuit or a discharging circuit corresponding to the current control state.

5. The power battery management system according to claim 2, characterized in that: The power bus (200) is a strip bus, and the strip bus includes a power interface (201) arranged on one side thereof and a user interface (202) arranged on the other side thereof; or The power bus (200) is a plate-shaped bus, the plate-shaped bus includes power interfaces (201) sequentially arranged around the plate-shaped bus, and the user interface (202) is arranged on a side of the plate-shaped bus where the power interface (201) is not arranged, or is arranged at the center of the plate-shaped bus; or The power bus (200) is a three-dimensional bus comprising a plurality of surfaces, the power interface (201) being arranged on at least one surface, and the user interface (202) being arranged on a surface of the plurality of surfaces on which the power interface (201) is not arranged.

6. The power battery management system according to claim 2, characterized in that: The power battery unit (10) is a plurality of power battery units with uniform electrical parameters; or The power battery unit (10) comprises at least one first power battery unit (11) having a first electrical parameter and at least one second power battery unit (12) having a second electrical parameter.

7. The power battery management system according to claim 1, characterized in that: The charging connection interface (301) comprises a positive charging interface (3011), a positive charging circuit (3013), a negative charging interface (3012) and a negative charging circuit (3014); the positive charging interface (3011) is connected to the positive output interface of the power bus (200) via the positive charging circuit (3013); the negative charging interface (3012) is connected to the negative output interface of the power bus (200) via the negative charging circuit (3014); the positive charging circuit (3013) is configured with a second switch control device (50), and the negative charging circuit (3014) is configured with a third switch control device (60).

8. The power battery management system according to claim 1, characterized in that: When the second connected group number is greater than 1: The charging connection interface (301) is respectively connected to a plurality of charging devices (30) having the same charging parameters; or The charging connection interface (301) is connected to at least one charging device having a first charging parameter, and is connected to at least one charging device having a second charging parameter.

9. The power battery management system according to claim 1, characterized in that: When the third number of connection groups is greater than 1, the power supply connection interface (401) is a plurality of power supply connection interfaces having the same power supply parameters; or The power supply connection interface (401) comprises at least one first power supply connection interface (411) having a first power supply parameter, and at least one second power supply connection interface (421) having a second power supply parameter.

10. The power battery management system according to any one of claims 1 to 9, characterized in that: The power battery management system further comprises a battery self-starting circuit, which is connected to the power bus (200) and is used to provide a voltage corresponding to the main control unit (500) to start the main control unit (500).

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