WO2023207962A1 - 充电设备、电池包、外部设备以及数据传输系统 - Google Patents

充电设备、电池包、外部设备以及数据传输系统 Download PDF

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Publication number
WO2023207962A1
WO2023207962A1 PCT/CN2023/090554 CN2023090554W WO2023207962A1 WO 2023207962 A1 WO2023207962 A1 WO 2023207962A1 CN 2023090554 W CN2023090554 W CN 2023090554W WO 2023207962 A1 WO2023207962 A1 WO 2023207962A1
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WO
WIPO (PCT)
Prior art keywords
terminal
battery pack
digital
digital communication
digital signal
Prior art date
Application number
PCT/CN2023/090554
Other languages
English (en)
French (fr)
Inventor
吕少锋
包林杰
周易
吴杰
Original Assignee
苏州宝时得电动工具有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Publication of WO2023207962A1 publication Critical patent/WO2023207962A1/zh

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
    • H02J7/00034—Charger exchanging data with an electronic device, i.e. telephone, whose internal battery is under charge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/296—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by terminals of battery packs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/04—Pins or blades for co-operation with sockets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/10—Sockets for co-operation with pins or blades
    • H01R13/11—Resilient sockets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/10—Sockets for co-operation with pins or blades
    • H01R13/11—Resilient sockets
    • H01R13/113—Resilient sockets co-operating with pins or blades having a rectangular transverse section
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/0036—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using connection detecting circuits
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
    • H02J7/0045—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction concerning the insertion or the connection of the batteries
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007—Regulation of charging or discharging current or voltage
    • H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/22—Arrangements for detecting or preventing errors in the information received using redundant apparatus to increase reliability
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/40—Bus networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/40—Bus networks
    • H04L12/40006—Architecture of a communication node
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/06—Management of faults, events, alarms or notifications
    • H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
    • H04L41/0663—Performing the actions predefined by failover planning, e.g. switching to standby network elements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/40—Bus networks
    • H04L2012/40208—Bus networks characterized by the use of a particular bus standard
    • H04L2012/40215—Controller Area Network CAN

Definitions

  • the present invention relates to the technical field of electric tools, and in particular to a charging device, a battery pack, an external device and a data transmission system.
  • connection terminals are often provided between battery packs and external devices (such as power tools, chargers, etc.).
  • the connection terminals may include signal terminals, power transmission terminals, etc.
  • battery packs and external devices are generally connected through electrical terminals to interact with external devices.
  • electrical terminals include power transmission terminals and communication terminals.
  • Communication terminals include analog signal terminals and digital signal terminals. Analog signal communication is carried out between the battery pack and external devices through analog signal terminals, or digital signal communication is carried out through digital signal terminals. Due to the single type of communication terminals of traditional battery packs, and with the development of technology, the communication methods of external devices are also changing, resulting in traditional battery packs being incompatible with a variety of external devices.
  • a charging equipment for charging a battery pack includes: a battery pack installation part for installing the battery pack.
  • the battery pack installation part includes a plurality of electrical terminals.
  • the charging equipment is electrically connected to the battery pack through the electrical terminals; a control module , the control module is connected to the electrical terminals in order to obtain the parameters of the battery pack through the electrical terminals, and control the charging process according to the parameters of the battery pack;
  • the control module at least includes a first digital communication module and a second digital communication module, and the electrical terminals at least include a first digital signal terminal and a second digital signal terminal.
  • the first digital communication module is connected to the first digital signal terminal for digital communication in a first digital communication mode through the first digital signal terminal.
  • the second digital communication module is connected to the second digital signal terminal. , used to perform digital communication in the second digital communication mode through the second digital signal terminal; when the charging device is connected to the battery pack, the charging device communicates with the battery pack through at least one of the first digital signal terminal and the second digital signal terminal.
  • control module determines whether a digital signal matching the first digital communication module is received, and uses the first digital communication module to communicate when received; when the control module does not receive a digital signal matching the first digital communication module digital signal, determine whether a digital signal matching the second digital communication module is received, and use the second digital communication module to communicate when received.
  • the control module during the charging process, when the control module detects that the first digital communication module fails to communicate, the control module performs digital communication through the second digital communication module and controls the charging process to continue.
  • control module further includes a first analog communication module
  • the electrical terminals further include a first analog signal terminal connected to the first analog communication module
  • the first analog communication module communicates with the battery pack through the first analog signal terminal.
  • Analog signal communication to receive external fault status signals and activation status signals of the battery pack; when the charging equipment performs digital communication through the first communication module, the charging equipment receives the fault status signal through the first analog communication module, and receives the fault status signal according to the received fault status signal.
  • the status signal controls the charging process of the battery pack; when the charging device passes the second communication mode
  • the charging device receives the parameters of the battery pack through the second digital communication module, and controls the charging process of the battery pack according to the parameters of the battery pack.
  • the control module controls the charging device to stop charging the battery pack.
  • the first digital communication method is CAN communication
  • the second digital communication method is serial communication
  • the electrical terminal further includes a first positive terminal, a first negative terminal and a first analog signal terminal;
  • the first digital signal terminal includes a first contact terminal and a second contact terminal, and the first contact terminal and the second The contact terminals are insulated from each other; in the first direction, the projections of the first contact terminal and the second contact terminal at least partially overlap, and the projections of the first contact terminal and the second contact terminal are aligned with the first positive terminal, the first negative terminal, and the third contact terminal.
  • the projections of an analog signal terminal and a second digital signal terminal do not overlap with each other; wherein, the first direction is perpendicular to the plugging and unplugging direction of the battery pack, and is aligned with the first positive terminal, the first negative terminal, the first analog signal terminal, and the second The digital signal terminals are arranged vertically.
  • the electrical terminal further includes a first positive terminal, a first negative terminal and a first analog signal terminal;
  • the first digital signal terminal includes a first contact terminal and a second contact terminal, and the first contact terminal and the second The contact terminals are insulated from each other; in the first direction, the projections of the first contact terminal and the second contact terminal are parallel, and the projections of the first contact terminal and the second contact terminal are parallel to the first positive terminal, the first negative terminal, and the first analog terminal.
  • the projections of the signal terminal and the second digital signal terminal are parallel; wherein, the first direction is perpendicular to the direction in which the battery pack is inserted into the external device, and is parallel to the first contact terminal, the second contact terminal, the first positive terminal, the first negative terminal, and the third
  • the first analog signal terminal and the second digital signal terminal are arranged in a vertical direction.
  • the electrical device used to detachably connect a battery pack to charge the battery pack or obtain electric energy from the battery pack.
  • the electrical device includes: a battery pack mounting portion used to install the battery pack, and the battery pack mounting portion includes a plurality of electrical terminals.
  • the electrical equipment is electrically connected to the battery pack through electrical terminals;
  • the control module is connected to the electrical terminals in order to obtain the parameters of the battery pack through the electrical terminals and control the charging process according to the parameters of the battery pack;
  • the control module at least includes a first digital communication module and a second digital communication module.
  • the electrical terminals at least include a first digital signal terminal and a second digital signal terminal.
  • the first digital communication module is connected to the first digital signal terminal for performing communication in a first digital communication manner through the first digital signal terminal.
  • the second digital communication module is connected to the second digital signal terminal for digital communication in the second digital communication mode through the second digital signal terminal; when the electrical device is connected to the battery pack, the charging device passes the first digital signal terminal At least one of the second digital signal terminals is in digital communication with the battery pack.
  • a battery pack for coupling with the aforementioned charging equipment characterized in that the battery pack includes: a casing; a battery core, which is disposed in the casing and used to store or release electrical energy; and a control module, which is connected to the battery core , used to detect the parameters of the battery core, and send the battery core to external electrical equipment, so that the charging equipment can control the charging and discharging process of the battery pack according to the parameters;
  • the electrode holder is set on the shell, and the electrode holder includes a plurality of Electrical terminals, multiple electrical terminals are connected to the control module, and the battery pack is connected to and interacts with the electrical equipment through the electrical terminals;
  • the control module at least includes a third digital communication module and a fourth digital communication module, and the electrical terminals include at least a third digital communication module.
  • the third digital communication module is used for digital signal communication with the charging device in the first digital communication mode through the third digital signal terminal.
  • the fourth digital communication module is used for using the fourth digital signal.
  • the terminal performs digital signal communication with the charging equipment in the second digital communication mode; when the battery pack is connected to the charging equipment, the third digital signal terminal is electrically connected to the first digital signal terminal, and the fourth digital signal terminal is electrically connected to the second digital signal terminal. connection, the battery pack performs digital signal communication with the charging device through at least one of the third digital signal terminal and the fourth digital signal terminal.
  • the first digital communication method is CAN communication
  • the second digital communication method is serial communication
  • the electrical terminal further includes a second analog signal terminal, and the second analog signal terminal is used for analog signal communication with the mated charging device; the electrical terminal further includes a second positive terminal and a second negative terminal; the electrode
  • the base includes five terminal slots. Barriers are provided between adjacent terminal slots. The extension direction of each terminal slot is perpendicular to the plug-in and pull-out direction of the battery pack. The five terminal slots are used to respectively accommodate the second positive terminal, the second positive terminal, and the second positive terminal.
  • the electrical terminal further includes a second analog signal terminal, and the second analog signal terminal is used for analog signal communication with the mated charging device; the electrical terminal further includes a second positive terminal and a second negative terminal; the electrode
  • the base includes six terminal slots, and barriers are provided between adjacent terminal slots. The extension direction of each terminal slot is perpendicular to the plug-in and pull-out direction of the battery pack; the third digital signal terminal includes a third contact terminal and a fourth contact terminal. , the six terminal slots are used to respectively accommodate the second positive terminal, the second negative terminal, the second analog signal terminal, the third contact terminal, the fourth contact terminal and the fourth digital signal terminal.
  • a data transmission system includes a charging device and a battery pack.
  • the battery pack is detachably installed on the charging device and is used to obtain electric energy from the charging device.
  • the charging device at least includes a first digital communication module, a second digital communication module and a third digital communication module.
  • a first digital communication terminal connected to a digital communication module and a second digital communication terminal connected to a second digital communication module.
  • the first digital communication module is used to perform digital communication in a first digital communication mode through the first digital signal terminal.
  • the two digital communication modules are used to perform digital communication in the second digital communication mode through the second digital signal terminal;
  • the battery pack at least includes a third digital communication module, a fourth digital communication module and a third digital communication module connected to the third digital communication module.
  • the power supply system also includes a control module for controlling the charging device to perform digital communication on the battery pack through at least one of a first digital communication method and a second digital communication method.
  • a battery pack including: a casing; an electric core, the electric core is arranged in the casing and used to store or release electrical energy; a charging and discharging circuit, the charging and discharging circuit is connected to the electric core; a main control module, The main control module is connected to the charging and discharging circuit and is used to control the charging and discharging process of the battery core through the charging and discharging circuit; the electrode holder terminal is arranged on the housing and connected with the charging The discharge circuit is connected to the main control module, and the battery pack is connected to an external device through the electrode holder terminal and performs power exchange and data exchange with the external device; the electrode holder terminal includes at least a first digital signal terminal and a second digital signal terminal. When the battery pack is connected to the external device, the battery pack communicates with the external device through at least one of the first digital signal terminal and the second digital signal terminal. Digital signal communication.
  • the first digital signal terminal is a differential communication terminal
  • the second digital signal terminal is a serial communication terminal
  • the differential communication terminal includes a CAN communication terminal
  • the serial communication terminal includes a UART communication terminal.
  • the main control module is used to detect the digital signal terminal of the connected external device. type, and according to the detected digital signal terminal type of the external device, control the battery pack to pass at least one of the first digital signal terminal and the second digital signal terminal that matches the digital signal terminal type of the external device. Communicate with digital signals.
  • the battery pack is controlled to perform digital signal communication with the third digital signal terminal and the fourth digital signal terminal of the external device through the first digital signal terminal and the second digital signal terminal respectively.
  • the battery pack receives a control signal transmitted by the external device through the third digital signal terminal through the first digital signal terminal.
  • the first digital signal terminal and the second digital signal terminal respectively have corresponding priorities; when the main control module detects that the external device has the same priority as the first digital signal terminal, When there is a matching third digital signal terminal, and a fourth digital signal terminal matching the second digital signal terminal, the battery pack is controlled to pass through the first digital signal terminal or the second digital signal terminal according to the priority.
  • the digital signal terminal is used for digital signal communication with the third digital signal terminal or the fourth digital signal terminal that matches the external device.
  • the priority of the first digital signal terminal is higher than the priority of the second digital signal terminal.
  • the electrode base terminal further includes an analog signal terminal, and the analog signal terminal is used for analog signal communication with the connected external device.
  • the main control module detects whether an external device is connected through the analog signal terminal, and when detecting that an external device is connected, controls the first digital signal terminal to send a first handshake signal, and controlling the second digital signal terminal to send a second handshake signal.
  • the first digital signal is controlled.
  • At least one of the terminal and the second digital signal terminal communicates with the external device; when it is detected that one of the first digital signal terminal and the second digital signal terminal receives a corresponding reply signal
  • the first digital signal terminal or the second digital signal terminal that receives the reply signal is controlled to communicate with the external device.
  • the electrode base further includes a positive terminal and a negative terminal; the electrode base includes at least five terminal slots for respectively accommodating the positive terminal, negative terminal, analog signal terminal, and first digital signal terminal and the second digital signal terminal.
  • the first digital signal terminal is a differential communication terminal
  • the differential communication terminal includes a first signal pole piece and a second signal pole piece, and the first signal pole piece and the second signal pole piece
  • the sheets are arranged up and down along a direction perpendicular to the insertion direction of the battery pack into the external device, and the first signal pole piece and the second signal pole piece are insulated from each other.
  • the electrode base includes six terminal slots; the first digital signal terminal is a differential communication terminal, and the differential communication terminal includes a first signal pole piece and a second signal pole piece, and the six The terminal slots are used to respectively accommodate the positive terminal, the negative terminal, the analog signal terminal, the first signal pole piece and the second signal pole piece of the differential communication terminal, and the second digital signal terminal. .
  • An external device includes any one of a charging device and an electric tool; the external device is provided with at least a third digital signal terminal and a fourth digital signal terminal, the third digital signal terminal and the The fourth digital signal terminal is respectively matched with the first digital signal terminal and the second digital signal terminal in the battery pack, and the external device passes at least one of the third digital signal terminal and the fourth digital signal terminal. One mates with and interacts with the battery pack.
  • the third digital signal terminal is a differential communication terminal
  • the fourth digital signal terminal is a serial communication terminal.
  • the differential communication terminal includes a CAN communication terminal
  • the serial communication terminal includes a UART communication terminal.
  • the digital signal terminal type of the battery pack is obtained, and a third digital signal that matches the digital signal terminal type of the battery pack is used. At least one of the terminal and the fourth digital signal terminal is in communication with the battery pack.
  • the external device when the external device detects that the battery pack has a first digital signal terminal that matches the third digital signal terminal, and a second digital signal that matches the fourth digital signal terminal, signal terminal, communicating with the first digital signal terminal and the second digital signal terminal of the battery pack through the third digital signal terminal and the fourth digital signal terminal respectively.
  • the external device transmits a control signal to the first digital signal terminal of the battery pack through the third digital signal terminal.
  • the third digital signal terminal and the fourth digital signal terminal respectively have corresponding priorities; when the external device detects that the battery pack has a When there is a first digital signal terminal, and a second digital signal terminal matching the fourth digital signal terminal, the third digital signal terminal or the fourth digital signal terminal is controlled according to the priority, and The battery pack communicates with the matched first digital signal terminal or the second digital signal terminal.
  • the priority of the third digital signal terminal is higher than the priority of the fourth digital signal terminal.
  • the external device further includes an analog signal terminal, and the analog signal terminal is used for analog signal communication with the mated battery pack.
  • the external device detects whether a battery pack is connected through the analog signal terminal, and when detecting that a battery pack is connected, controls the third digital signal terminal to send a first handshake signal, and The fourth digital signal terminal is controlled to send a second handshake signal. When it is detected that both the third digital signal terminal and the fourth digital signal terminal receive corresponding reply signals, the third digital signal terminal is controlled. and at least one of the fourth digital signal terminals communicating with the battery pack;
  • the third digital signal terminal or the fourth digital signal terminal that receives the reply signal is controlled. Communicates with the battery pack.
  • the external device further includes a positive terminal and a negative terminal and at least five terminal slots, and the at least five terminal slots are used to respectively accommodate the positive terminal, the negative terminal, the analog signal terminal, the first a digital signal terminal and a second digital signal terminal.
  • the first digital signal terminal is a differential communication terminal
  • the differential communication terminal includes a first insert and a second insert.
  • the The projections of the first plug-in piece and the second plug-in piece overlap, and the first signal pole piece and the second signal pole piece are insulated from each other.
  • the first digital signal terminal is a differential communication terminal
  • the differential communication terminal includes a first insert and a second insert.
  • the The projections of the first inserting piece and the second inserting piece are parallel.
  • a data transmission system includes the aforementioned battery pack and the aforementioned external device.
  • Figure 1 is a schematic structural diagram of a data transmission system provided by an embodiment of the present application.
  • Figure 2 is a schematic structural diagram of a data transmission system provided by another embodiment of the present application.
  • Figure 3 is a schematic structural diagram of the connection between the battery pack and the charging equipment through analog signal terminals
  • Figure 4 is a control timing diagram corresponding to the structure in Figure 3;
  • Figure 5 is a schematic structural diagram of the electrical terminals on the charging equipment side
  • Figure 6 is a schematic structural diagram of the electrical terminals on the battery pack side.
  • connection In the present invention, unless otherwise clearly stated and limited, the terms “installation”, “connection”, “connection”, “fixing” and other terms should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection. , or integrated into one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two elements or an interactive relationship between two elements, unless otherwise specified restrictions. 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.
  • first and second are used for descriptive purposes only and shall not be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Therefore, features defined as “first” and “second” may explicitly or implicitly include at least one of these features.
  • “plurality” means at least two, such as two, three, etc., unless otherwise expressly and specifically limited.
  • the battery pack can be electrically connected to external devices such as power tools and chargers, and is used to charge the power tools or obtain power from the chargers. It can also transmit data with the power tools and chargers.
  • the battery pack and external equipment are equipped with matching electrical terminals.
  • the electrical terminals include signal terminals, power transmission terminals, etc.
  • the signal terminals are used to transmit data signals between the battery pack and external equipment, and the power transmission terminals are used for Transmits power signals between the battery pack and external devices.
  • signal terminals in traditional solutions, a set of analog signal terminals and a set of digital signal terminals are generally configured between the battery pack and external devices. When the battery pack communicates with external devices, power is first activated through the analog signal terminals, and then through the digital signals. The terminal transmits data. Since traditional battery packs or external devices can only communicate with external devices or battery packs of a specific communication type, they cannot communicate with other power tools or battery packs, which limits the use of battery packs or external devices.
  • embodiments of the present application provide a charging device, a battery pack, an external device and a data transmission system.
  • the charging device 100 for charging a battery pack 200 .
  • the charging device 100 includes a battery pack mounting portion for detachably mounting the battery pack 200 .
  • the battery pack installation part includes a plurality of electrical terminals through which the charging device 100 is connected to the electrical terminals on the battery pack 200 side for communicating with the battery pack 200 and transmitting power to the battery pack 200 .
  • the charging device 100 also includes a control module 110.
  • the control module 110 is connected to electrical terminals and is used to obtain parameters of the battery pack through the electrical terminals and control the charging process of the battery pack 200 according to the parameters of the battery pack 200.
  • the control module 110 of the charging device 100 includes at least a first digital communication module 111 and a second digital communication module 111 .
  • Digital communication module 112 the electrical terminals at least include a first digital signal terminal 121 and a second digital signal terminal 122.
  • the first digital communication module 111 is connected to the first digital signal terminal 121, and is used to communicate with the first digital signal through the first digital signal terminal 121.
  • the second digital communication module 112 is connected to the second digital signal terminal 122 for digital signal communication in the second digital communication mode.
  • the charging device 100 When the charging device 100 is connected to the battery pack 200, the charging device 100 performs digital signal communication with the battery pack 200 through at least one of the first digital signal terminal 121 and the second digital signal terminal 122.
  • the first digital communication method and the second digital communication method are two digital signal communication methods with different communication types.
  • the charging device 100 integrates two different digital communication modules to match battery packs 200 with different digital communication module types, thereby improving the adaptability of the charging device 100 and enabling a variety of battery packs 200 with different digital communication modules. All can be installed on the charging device 100 provided by this application for charging.
  • first digital communication module 111 and the second digital communication module 112 can be integrated in the control module 110 , or can be independent of the control module 110 and connected to the control module 110 .
  • the charging device 100 can be provided with not only two digital communication modules, but also three or more digital communication modules.
  • the electrical terminals of the charging device 100 can be configured with three or more digital communication modules. Digital signal terminals corresponding to the module to improve the adaptability of the charging device 100.
  • the first digital communication method is CAN (Controller Area Network) communication
  • the second digital communication method is serial port communication. That is, in this embodiment, the first digital communication module 111 on the charging device 100 side is a CAN communication module, and the second digital communication module 112 is a serial communication module. More specifically, the second digital communication module 112 is a UART (Universal Asynchronous Receiver/ Transmitter, Universal Asynchronous Receiver and Transmitter) communication module.
  • CAN communication is expandable, and multiple slave machines can be connected to the CAN bus. Therefore, by setting a CAN communication module on the charging device 100, the charging device 100 can charge multiple battery packs 200 at the same time or in a time-sharing manner, and communicate with multiple battery packs 200. communication.
  • the UART communication method has anti-interference characteristics and can be used in scenarios with electromagnetic interference environments, transmission line areas, etc. When the charging device 100 uses the UART communication method for digital signal communication, the communication stability is high.
  • first digital communication module 111 and the second digital communication module 112 may both be serial communication modules to match the battery pack 200 with different serial communication modules.
  • first digital communication module 111 may be a UART communication module
  • second digital communication module may be an RS232 communication module.
  • the first digital communication module 111 and the second digital communication module 112 can also be other types of serial communication modules, and can be selected according to actual needs.
  • the control module 110 of the charging device 100 determines whether a digital signal matching the first digital communication module 111 is received, and when received, passes the first digital signal The communication module 111 communicates.
  • the control module 110 determines whether a digital signal matching the second digital communication module 112 is received, and communicates through the second digital communication module 112 when received.
  • the charging device 100 starts the charging process of the battery pack 200 .
  • the digital communication module with a higher priority is first used to communicate with the battery pack 200 according to the preset priority.
  • the priority of the first digital communication module 111 is higher than the priority of the second digital communication module 112 . That is, the charging device 100 first sends a handshake signal to the battery pack 200 through the first digital communication module 111. If the charging device 100 receives the digital signal fed back by the battery pack 200 through the first digital communication module 111, the charging device 100 and the battery pack Digital communication between 200 is carried out through the first digital communication method.
  • the charging device 100 does not receive the battery pack 200 through the first digital communication module 111, it will If the digital signal is fed, it is determined that the battery pack 200 does not have a corresponding digital communication module. At this time, the charging device 100 sends a handshake signal to the battery pack 200 through the second digital communication module 112. If the charging device 100 receives the handshake signal through the second digital communication module 112, If the digital signal is fed back to the battery pack 200, digital communication is performed between the charging device 100 and the battery pack 200 through the second digital communication method. If the charging device 100 does not receive the digital signal fed back by the battery pack through the second digital communication module, it is determined that the digital communication module of the battery pack 200 does not match the two digital communication modules in the charging device 100, and the charging device 10 does not start. Charging the battery pack 200.
  • the charging device 100 preferentially uses the CAN communication module to send the handshake signal. If the CAN communication handshake is unsuccessful, the serial port communication module is then used to send the handshake signal. Of course, in other implementations, the charging device 100 may also preferentially use the serial communication module to send the handshake signal, and then use CAN communication to send the handshake signal when the serial communication fails, which can be adjusted according to the usage scenario.
  • control module 110 can also send a handshake signal to the battery pack 200 through the CAN communication module and the serial port communication module at the same time, and determine whether the handshake signal fed back by the battery pack 200 is received through the CAN communication module or the serial port communication module. If the control module 110 receives the handshake signal fed back by the battery pack 200 through both digital communication modules, the control module 110 preferentially uses the CAN communication module to communicate with the battery pack and starts charging the battery pack 200 . When the control module 110 receives the feedback signal only through one of the digital communication modules, it uses the corresponding digital communication module to communicate with the battery pack 200 and starts charging the battery pack 200 . When the control module 110 does not receive the feedback signal from the battery pack 200, the control module 110 does not start charging the battery pack 200.
  • the battery pack 200 includes a third digital communication module 211 and a fourth digital communication module 212.
  • the electrical terminals on the battery pack 200 side include a third digital signal terminal. 221 and the fourth digital signal terminal 222.
  • the third digital communication module 211 is used to perform digital communication in the first digital signal communication mode through the third digital signal terminal 221, and the fourth digital communication module 212 is used to perform digital communication in the second digital signal communication mode through the fourth digital signal terminal 222. communication.
  • the first digital communication method is CAN communication
  • the second digital communication method is serial communication. That is, the third digital communication module 211 is a CAN communication module, and the fourth digital communication module 212 is a serial communication module.
  • the fourth digital communication module 212 is a UART communication module. Therefore, when the charging device 100 provided by this application charges the battery pack 200 provided by this application, the first digital signal terminal 121 is connected to the third digital signal terminal 221, and the second digital signal terminal 122 is connected to the fourth digital signal terminal 222. , the charging device 100 can use any of the digital communication modules to communicate with the battery pack 200 . Preferably, due to the fast data transmission speed of CAN communication, the CAN communication module is preferably used for digital signal communication between the charging device 100 and the battery pack 200 .
  • control module 110 of the charging device 100 detects that the first digital communication module 111 fails to communicate, the control module 110 performs digital communication through the second digital communication module 112 while controlling the charging process to continue. .
  • the charging device 100 when the charging device 100 is connected to the battery pack 200, multiple sets of corresponding digital signal terminals remain connected, but during data transmission, one set of connected digital signal terminals is selected for digital communication.
  • Digital signal terminals connected to other groups can be used as candidate signal terminals.
  • the digital communication modules and digital signal terminals connected to other groups can be switched to digital communication modules and digital signal terminals for digital communication.
  • the CAN communication module since CAN communication has a higher priority than serial communication, the CAN communication module is used first for digital communication between the charging device 100 and the battery pack 200.
  • the serial communication module is used for digital communication, which can prevent Once the signal terminal has an abnormal connection status such as loose connection, damage or communication module failure, it will cause a shutdown problem. This ensures that the charging device 100 and the battery pack 200 can also pass through when one of the digital communications between the two fails.
  • the remaining spare digital communication modules realize normal communication and ensure Ensure the normal operation of the entire system.
  • the control module 110 of the charging device 100 also includes a first analog communication module 113, and a first analog signal terminal 123 connected to the first analog communication module 113.
  • the battery pack 200 The side includes a second analog communication module 213 and a second analog signal terminal 223 connected to the second analog communication module 213 .
  • the second analog signal terminal 223 is mated with the first analog signal terminal 123, so that the charging device 100 can communicate with the battery pack through the first analog communication module 113 and the second analog communication module 213.
  • 200 performs analog signal communication, receives status information of the battery pack 200, and controls the charging and discharging process according to the status information of the battery pack 200.
  • the status information of the battery pack 200 includes the fault status of the battery pack 200 or the activation status of the battery pack 200 . That is to say, the charging device 100 can determine whether the battery pack 200 is faulty and whether the battery pack 200 is inserted into the charging device 100 through the analog signal terminal.
  • FIG. 3 shows a specific example of the connection between the charging device 200 and the battery pack 100 through analog signal terminals and analog communication modules.
  • the left side shows the circuit status of the second analog communication module in the battery pack 200
  • the right side shows the circuit status of the first analog communication module in the charging device 100.
  • the battery pack 200 and the charging device 100 are connected through analog signal terminals.
  • FIG 4 is a schematic diagram of the control signal Vcon of the drive tube in the battery pack and the voltage at the analog signal receiving end Vo in the charging device.
  • the drive tube Q1 is controlled by the controller in the battery pack 200.
  • V1 ⁇ Vref ⁇ V2 the battery pack 200 side can control the impedance to ground in the battery pack 100 by controlling the on or off of Q1, thereby controlling the voltage at the analog signal terminal and the voltage of Vo.
  • Vo is directly connected to the control module 110 of the charging device 100.
  • the control module 110 determines the status of the battery pack according to the level of Vo.
  • the battery pack 200 side adjusts the output voltage at the analog signal terminal by controlling the transistor Q1, so that the charging device 100 can activate the battery pack 200 according to the voltage at the analog signal terminal.
  • the battery pack side fails, the battery pack 200 side actively pulls down the voltage at the analog signal terminal.
  • the charging device 100 side can determine that the current battery pack 200 is in a fault state based on the low voltage state of the analog signal terminal, and immediately stops charging the battery pack. 200 recharge.
  • the charging device 100 When the charging device 100 charges the battery pack 200, the charging device 100 not only communicates with the battery pack 200 via digital signals through the digital communication module, but also communicates with the battery pack 200 via analog signals through the analog signal communication module. Specifically, when the battery pack 200 is plugged into the charging device 100, the battery pack 200 side controls the voltage at the analog signal terminal, so that the charging device 100 side can know that the battery pack 200 has been connected based on the voltage at the analog signal terminal, and then The charging device 100 sends a handshake signal through the CAN communication module, and determines whether it has received the CAN communication signal returned by the battery pack 200. If the CAN communication signal returned by the battery pack 200 is received, CAN communication is used between the charging device 100 and the battery pack 200. Modules communicate digitally.
  • the control module 110 monitors the voltage at the analog signal communication terminal in real time, and determines whether the battery pack 200 is connected based on the voltage at the analog signal terminal. When a fault such as overcurrent, overvoltage, or overtemperature occurs, or whether the battery pack 200 is full, and when it is determined that the battery pack 200 is faulty or the battery pack 200 is full, the control module 110 controls the charging device 100 to stop charging the battery pack 200 .
  • the charging device 100 uses the serial communication module to communicate with the battery pack, and during the serial communication process, the control module 110 no longer receives the voltage at the analog signal terminal. status, but determines whether the battery pack 200 is faulty based on the parameters of the battery pack 200 received during the serial communication process, and controls the charging device 100 to stop charging the battery pack 200 when the battery pack 200 fails.
  • This The reason for this setting is that before the charging device 100 can communicate with the battery pack 200, it needs to first determine whether the battery pack is connected based on the level status received at the analog signal terminal, and when it is determined that the battery pack is connected, allocate the battery pack to the battery pack. Digital communication address, and then CAN communication can be carried out.
  • the analog signal communication may fail.
  • the analog signal terminal insertion is unstable, or the analog communication module fails. Therefore, when the charging device 100 and the battery pack 200 switch to serial communication
  • the charging device 100 no longer detects the voltage at the analog signal terminal, but determines the battery based on the voltage, current, temperature and other information of the battery pack 200 received during the digital communication process. Whether the battery pack 200 fails or the battery pack is full, and stops charging when the battery pack 200 fails or the battery pack 200 is full.
  • the fault status can be transmitted between the charging device 100 and the battery pack 200 through the analog signal terminal, but also the parameters of the battery pack 200 can be transmitted through the digital signal terminal, so that the charging device 100 can learn the specific fault of the battery pack 200 information, so that even if the analog signal terminals are in poor contact, it can still be determined whether the battery pack 200 is faulty through digital signal communication, thereby achieving dual charging guarantee and improving charging safety.
  • the charging device 100 stops charging the battery pack 200 and no longer switches to the second digital communication module 112 for charging.
  • Digital signal communications That is, it can be determined according to actual needs whether to switch the digital communication module when the CAN communication module fails to communicate.
  • the electrical terminals of the charging device 100 further include a first positive terminal 124 and a first negative terminal 125 .
  • the battery pack 200 side includes a second positive terminal 224 and a second negative terminal 225.
  • the first positive terminal 124 is used for mating with the second positive terminal 224
  • the first negative terminal 125 is used for mating with the second negative terminal 225.
  • the negative terminal is used to transmit electricity.
  • the first digital signal terminal 121 is a CAN communication terminal, and CAN communication is differential communication, which requires two transmission cables to transmit data
  • the first digital signal terminal accordingly includes two contact terminals, which are connected to the two contact terminals respectively. transmission cable.
  • the two contact terminals are a first contact terminal 121a and a second contact terminal 121b, and the first contact terminal 121a and the second contact terminal 121b are insulated from each other.
  • the projections of the first contact terminal 121a and the second contact terminal 121b at least partially overlap, and the projections of the first contact terminal 121a and the second contact terminal 121b overlap with the first positive terminal 124, the first negative terminal 125,
  • the projections of the first analog signal terminal 123 and the second digital signal terminal 122 do not overlap with each other.
  • the first direction is perpendicular to the insertion and extraction direction of the battery pack, and perpendicular to the arrangement direction of the first positive terminal 124 , the first negative terminal 125 , the first analog signal terminal 123 , and the second digital signal terminal 122 .
  • the insertion and extraction direction of the battery pack is the y direction in the figure
  • the arrangement direction of each electrical terminal is the x direction
  • the first direction is the z direction.
  • the first contact terminal 121a and the second contact terminal 121b are arranged in the z direction.
  • the electrical terminals on the charging device 100 side may be plug-in blades, and each plug-in blade is insulated from each other.
  • a slot is provided on the side of the battery pack 200, and plum blossom contacts are provided in the slot for receiving the insert and electrically connecting with the insert.
  • the battery pack 200 provided by the present application includes a second positive terminal 224 , a second negative terminal 225 , a second analog signal terminal 223 , a third digital signal terminal 221 and a fourth digital signal terminal 222 .
  • the second positive terminal 224, the second negative terminal 225, the second analog signal terminal 223, the third digital signal terminal 221 and the fourth digital signal terminal 222 are connected with the first positive terminal 124, the first negative terminal 125,
  • the first analog signal terminal 123, the first digital signal terminal 121 and the second digital signal terminal 122 are arranged in the same position.
  • the electrode base of the battery pack 200 includes five terminal slots. Barriers are provided between adjacent terminal slots. The extension direction of each terminal slot is perpendicular to the insertion and extraction direction of the battery pack. In Figure 6, the insertion and removal direction of the battery pack is perpendicular to the paper surface. The five terminal slots are used to respectively accommodate the second positive terminal 224, the second negative terminal 225, the second analog signal terminal 223, and the second negative terminal 224.
  • the third digital signal terminal 221 includes a third contact terminal 221a and a fourth contact terminal 221b.
  • the third contact terminal 221a and the fourth contact terminal 221b are arranged in the same terminal slot, and the two terminals are arranged along the extension direction of the terminal slot. cloth.
  • the third contact terminal 221a and the fourth contact terminal 221b are insulated from each other. In this embodiment, insulation is achieved by providing an insulating member 221c between the third contact terminal 221a and the fourth contact terminal 221b
  • the third digital signal terminal 221 includes a third contact terminal 221a and a fourth contact terminal 221b.
  • the third contact terminal 221a and the fourth contact terminal 221b are respectively disposed in two terminal slots. That is, the six terminal slots are used to respectively accommodate the second positive terminal 224, the second negative terminal 225, the second analog signal terminal 223, the third contact terminal 221a, the fourth contact terminal 221b and the fourth digital signal terminal 222.
  • the first digital signal terminal 121 includes a first contact terminal 121a and a second contact terminal 121b.
  • the first contact terminal 121a and the second contact terminal 121b are insulated from each other.
  • the positions of the first contact terminal 121a and the second contact terminal 121b correspond to the third contact terminal 221a and the fourth contact terminal 221b.
  • the projections of the first contact terminal 121a and the second contact terminal 121b are parallel, and the projections of the first contact terminal 121a and the second contact terminal 121b are parallel to the first positive terminal 124 and the first negative terminal 125 , the projections of the first analog signal terminal 123 and the second digital signal terminal 122 are parallel.
  • the first direction is perpendicular to the insertion and extraction direction of the battery pack, and is also perpendicular to the first contact terminal 121a, the second contact terminal 121b, the first positive terminal 124, the first negative terminal 125, the first analog signal terminal 123, the second digital
  • the arrangement direction of the signal terminals 122 is vertical.
  • the electrical equipment includes a battery pack installation part for installing the battery pack.
  • the battery pack installation part includes a plurality of electrical terminals, and the electrical equipment is electrically connected to the battery pack through the electrical terminals.
  • the control module is connected to the electrical terminals in order to obtain the parameters of the battery pack through the electrical terminals and control the charging process according to the parameters of the battery pack.
  • the control module at least includes a first digital communication module and a second digital communication module.
  • the electrical terminals include at least a first digital signal terminal and a second digital signal terminal.
  • the first digital communication module is connected to the first digital signal terminal for passing the first digital signal.
  • the signal terminal performs digital communication in the first digital communication mode.
  • the second digital communication module is connected to the second digital signal terminal and is used to perform digital communication in the second digital communication mode through the second digital signal terminal.
  • the electrical device When the electrical device is connected to the battery pack, the electrical device communicates with the battery pack through at least one of the first digital signal terminal and the second digital signal terminal.
  • the electrical equipment in the above embodiments may be electric tools, such as lawn mowers, trimmers, hair dryers, pruners, etc.
  • the electric tool is used to receive the status information of the battery pack and the parameters of the battery pack, and to control the discharge process of the battery pack based on the status information of the battery pack and the parameters of the battery pack.
  • the communication logic between the above-mentioned electric tool and the battery pack is the same as the communication logic between the charging device and the battery pack, and will not be described again here.
  • the terminal arrangement structure on the power tool side is the same as that on the charging device side, and will not be described again here.
  • An embodiment of the present application also provides a data transmission system, including a charging device and a battery pack.
  • the battery pack is detachably installed on the charging device and used to obtain electric energy from the charging device.
  • the charging device at least includes a first digital communication module, a second digital communication module, a first digital communication terminal connected to the first digital communication module, and a second digital communication terminal connected to the second digital communication module.
  • the first digital communication module has a The second digital communication module is used to perform digital communication through the first digital signal terminal in the first digital communication mode, and the second digital communication module is used to perform digital communication through the second digital signal terminal in the second digital communication mode;
  • the battery pack at least includes a third digital communication module,
  • the fourth digital communication module is And a third digital communication terminal connected to the third digital communication module and a fourth digital communication terminal connected to the fourth digital communication module.
  • the third digital communication module is used to perform digital processing in the first digital communication mode through the third digital signal terminal.
  • the fourth digital communication module is used to perform digital communication in the second digital communication mode through the fourth digital signal terminal; when the battery pack is connected to the charging device, the third digital communication terminal is connected to the first digital communication terminal, and the third digital communication terminal is connected to the first digital communication terminal.
  • the four digital communication terminals are mated with the second digital communication terminal; the power supply system also includes a control module for controlling the charging device to perform digital communication on the battery pack through at least one of the first digital communication method and the second digital communication method.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

本申请涉及电动工具技术领域，具体公开一种充电设备、电池包、外部设备以及数据传输系统。其中充电设备至少包括第一数字通信模块、第二数字通信模块以及分别于第一数字通信模块和第二数字通信模块连接的第一数字信号端子和第二数字信号端子，当充电设备与电池包连接时，充电设备能够通过至少其中一种数字通信端子与电池包进行数字通信。由此提高了充电设备的适配性。

Description

充电设备、电池包、外部设备以及数据传输系统
本申请要求申请号为“CN202210457481.3”申请日为2022.04.28的中国专利申请、申请号为“CN202211060907.8”申请日为2022.08.31的中国专利申请以及申请号为“CN202310284069.0”申请日为2023.03.22的中国专利申请的优先权。
技术领域
本发明涉及电动工具技术领域，特别是涉及一种充电设备、电池包、外部设备以及数据传输系统。
背景技术
在电动工具行业中，电池包与外部设备(例如电动工具、充电器等)之间往往设置有配套的连接端子，连接端子可以包括信号端子、电力传输端子等。
传统的方案中，电池包与外部设备之间一般通过电气端子连接，以与外部设备进行交互。通常，电气端子包括电能传输端子和通信端子，通信端子包括模拟信号端子和数字信号端子，电池包与外部设备之间通过模拟信号端子进行模拟信号通信，或通过数字信号端子进行数字信号通信。由于传统的电池包通信端子类型单一，而随着技术的发展，外部设备的通信方式也在发生变化，导致传统的电池包无法兼容多种外部设备。
发明内容
基于此，有必要针对上述问题，提供一种充电设备、电池包、外部设备及数据传输系统。
一种充电设备，用于为电池包充电，充电设备包括：电池包安装部，用于安装电池包，电池包安装部包括多个电气端子，充电设备通过电气端子与电池包电连接；控制模块，控制模块连接电气端子，以便通过电气端子获取电池包的参数，并根据电池包的参数控制充电过程；控制模块至少包括第一数字通信模块和第二数字通信模块，电气端子至少包括第一数字信号端子和第二数字信号端子，第一数字通信模块连接第一数字信号端子，用于通过第一数字信号端子以第一数字通信方式进行数字通信，第二数字通信模块连接第二数字信号端子，用于通过第二数字信号端子以第二数字通信方式进行数字通信；当充电设备与电池包连接时，充电设备通过第一数字信号端子和第二数字信号端子中的至少一种与电池包进行数字通信。
在其中一个实施例中，控制模块判断是否接收到与第一数字通信模块匹配的数字信号，并在接收到时采用第一数字通信模块通信；当控制模块未接收到与第一数字通信模块匹配的数字信号，判断是否接收到与第二数字通信模块匹配的数字信号，并在接收到时采用第二数字通信模块通信。
在其中一个实施例中，在充电过程中，当控制模块检测到第一数字通信模块通信失败，控制模块通过第二数字通信模块进行数字通信，同时控制充电过程继续。
在其中一个实施例中，控制模块还包括第一模拟通信模块，电气端子还包括与第一模拟通信模块连接的第一模拟信号端子，第一模拟通信模块通过第一模拟信号端子与电池包进行模拟信号通信，以接收外部的故障状态信号和电池包的激活状态信号；当充电设备通过第一通信模块进行数字通信时，充电设备通过第一模拟通信模块接收故障状态信号，并根据接收到故障状态信号控制电池包的充电过程；当充电设备通过第二通信模 块进行数字通信时，充电设备通过第二数字通信模块接收电池包的参数，并根据电池包的参数控制电池包的充电过程。
在其中一个实施例中，充电过程中，当控制模块检测到第一数字通信模块通信失败，控制模块控制充电设备停止为电池包充电。
在其中一个实施例中，第一数字通信方式为CAN通信，第二数字通信方式为串口通信。
在其中一个实施例中，电气端子还包括第一正极端子、第一负极端子和第一模拟信号端子；第一数字信号端子包括第一接触端子和第二接触端子，第一接触端子和第二接触端子相互绝缘；在第一方向上，第一接触端子与第二接触端子的投影至少部分重叠，且第一接触端子和第二接触端子的投影与第一正极端子、第一负极端子、第一模拟信号端子、第二数字信号端子的投影互不重叠；其中，第一方向与电池包的插拔方向垂直，且与第一正极端子、第一负极端子、第一模拟信号端子、第二数字信号端子的排布方向垂直。
在其中一个实施例中，电气端子还包括第一正极端子、第一负极端子和第一模拟信号端子；第一数字信号端子包括第一接触端子和第二接触端子，第一接触端子和第二接触端子相互绝缘；在第一方向上，第一接触端子与第二接触端子的投影平行，且第一接触端子和第二接触端子的投影与第一正极端子、第一负极端子、第一模拟信号端子、第二数字信号端子的投影平行；其中，第一方向与电池包插入外部设备的方向垂直，且与第一接触端子、第二接触端子、第一正极端子、第一负极端子、第一模拟信号端子、第二数字信号端子的排布方向垂直。
一种电气设备，用于可拆卸地连接电池包，以便为电池包充电或从电池包获取电能，电气设备包括：电池包安装部，用于安装电池包，电池包安装部包括多个电气端子，电气设备通过电气端子与电池包电连接；控制模块，控制模块连接电气端子，以便通过电气端子获取电池包的参数，并根据电池包的参数控制充电过程；控制模块至少包括第一数字通信模块和第二数字通信模块，电气端子至少包括第一数字信号端子和第二数字信号端子，第一数字通信模块连接第一数字信号端子，用于通过第一数字信号端子以第一数字通信方式进行数字通信，第二数字通信模块连接第二数字信号端子，用于通过第二数字信号端子以第二数字通信方式进行数字通信；当电气设备与电池包连接时，充电设备通过第一数字信号端子和第二数字信号端子中的至少一种与电池包进行数字通信。
一种电池包，用于与前述充电设备配接，其特征在于，电池包包括：壳体；电芯，电芯设置于壳体内，用于存储或释放电能；控制模块，控制模块连接电芯，用于检测电芯的参数，并将电芯发送发送至外部的电气设备，以便充电设备根据参数控制电池包的充放电过程；电极座，电极座设置在壳体上，电极座包括多个电气端子，多个电气端子与控制模块连接，电池包通过电气端子与电气设备配接并与电气设备进行交互；控制模块至少包括第三数字通信模块和第四数字通信模块，电气端子至少包括第三数字信号端子和第四数字信号端子，第三数字通信模块用于通过第三数字信号端子以第一数字通信方式与充电设备进行数字信号通信，第四数字通信模块用于通过第四数字信号端子以第二数字通信方式与充电设备进行数字信号通信；当电池包与充电设备连接时，第三数字信号端子与第一数字信号端子电连接，第四数字信号端子与第二数字信号端子电连接，电池包通过第三数字信号端子和第四数字信号端子中的至少一种与充电设备进行数字信号通信。
在其中一个实施例中，第一数字通信方式为CAN通信，第二数字通信方式为串口通信。
在其中一个实施例中，电气端子还包括第二模拟信号端子，第二模拟信号端子用于与配接的充电设备进行模拟信号通信；电气端子还包括第二正极端子和第二负极端子；电极座包括五个端子槽，相邻端子槽之间设置有阻隔件，每个端子槽的延伸方向均垂直于电池包的插拔方向，五个端子槽用于分别容纳第二正极端子、第二负极端子、第二模拟信号端子、第三数字信号端子和第四数字信号端子；其中，第三数字信号端子包括第三接触端子和第四接触端子，第三接触端子和第四接触端子设置在同一端子槽内，且第三接触端子和第四接触端子沿端子槽的延伸方向排布，第三接触端子和第四接触端子之间相互绝缘。
在其中一个实施例中，电气端子还包括第二模拟信号端子，第二模拟信号端子用于与配接的充电设备进行模拟信号通信；电气端子还包括第二正极端子和第二负极端子；电极座包括六个端子槽，相邻端子槽之间设置有阻隔件，每个端子槽的延伸方向均垂直于电池包的插拔方向；第三数字信号端子包括第三接触端子和第四接触端子，六个端子槽用于分别容纳第二正极端子、第二负极端子、第二模拟信号端子、第三接触端子、第四接触端子以及第四数字信号端子。
一种数据传输系统，包括充电装置和电池包，电池包可拆卸地安装于充电装置上，用于从充电装置获取电能；充电装置至少包括第一数字通信模块、第二数字通信模块以及与第一数字通信模块连接的第一数字通信端子和与第二数字通信模块连接的第二数字通信端子，第一数字通信模块用于通过第一数字信号端子以第一数字通信方式进行数字通信，第二数字通信模块用于通过第二数字信号端子以第二数字通信方式进行数字通信；电池包至少包括第三数字通信模块、第四数字通信模块以及与第三数字通信模块连接的第三数字通信端子和与第四数字通信模块连接的第四数字通信端子，第三数字通信模块用于通过第三数字信号端子以第一数字通信方式进行数字通信，第四数字通信模块用于通过第四数字信号端子以第二数字通信方式进行数字通信；当电池包与充电设备配接时，第三数字通信端子与第一数字通信端子配接，第四数字通信端子与第二数字通信端子配接；供电系统还包括控制模块，用于控制充电装置对电池包通过第一数字通信方式和第二数字通信方式中的至少一种进行数字通信。
一种电池包，包括：壳体；电芯，所述电芯设置于所述壳体内，用于存储或释放电能；充放电电路，所述充放电电路连接所述电芯；主控模块，所述主控模块连接所述充放电电路，用于通过所述充放电电路控制所述电芯的充放电过程；电极座端子，所述电极座端子设置在壳体上，并与所述充放电电路和所述主控模块连接，所述电池包通过所述电极座端子与外部设备配接并与所述外部设备进行电能交互和数据交互；所述电极座端子包括至少包括第一数字信号端子和第二数字信号端子，当所述电池包与所述外部设备连接时，所述电池包通过所述第一数字信号端子和所述第二数字信号端子中的至少一种与外部设备进行数字信号通信。
在其中一个实施例中，所述第一数字信号端子为差分通信端子，所述第二数字信号端子为串口通信端子。
在其中一个实施例中，所述差分通信端子包括CAN通信端子，所述串口通信端子包括UART通信端子。
在其中一个实施例中，所述主控模块用于检测配接的所述外部设备的数字信号端子 类型，并根据检测的所述外部设备的数字信号端子类型，控制所述电池包通过与所述外部设备的数字信号端子类型匹配的第一数字信号端子和第二数字信号端子中的至少一种进行数字信号通信。
在其中一个实施例中，当所述主控模块检测到所述外部设备具有与所述第一数字信号端子匹配的第三数字信号端子，以及具有与所述第二数字信号端子匹配的第四数字信号端子时，控制所述电池包分别通过所述第一数字信号端子和第二数字信号端子与所述外部设备的第三数字信号端子和第四数字信号端子进行数字信号通信。
在其中一个实施例中，所述电池包通过所述第一数字信号端子接收所述外部设备通过所述第三数字信号端子传输的控制信号。
在其中一个实施例中，所述第一数字信号端子和所述第二数字信号端子分别具有对应的优先级；当所述主控模块检测到所述外部设备具有与所述第一数字信号端子匹配的第三数字信号端子，以及具有与所述第二数字信号端子匹配的第四数字信号端子时，根据所述优先级控制所述电池包通过所述第一数字信号端子或所述第二数字信号端子，与外部设备匹配的第三数字信号端子或第四数字信号端子进行数字信号通信。
在其中一个实施例中，所述第一数字信号端子的优先级高于所述第二数字信号端子的优先级。
在其中一个实施例中，所述电极座端子还包括模拟信号端子，所述模拟信号端子用于与配接的所述外部设备进行模拟信号通信。
在其中一个实施例中，所述主控模块通过所述模拟信号端子检测是否有外部设备接入，当检测到有外部设备接入时，控制所述第一数字信号端子发送第一握手信号，以及控制所述第二数字信号端子发送第二握手信号，当检测到所述第一数字信号端子和所述第二数字信号端子均接收到对应的回复信号时，则控制所述第一数字信号端子和所述第二数字信号端子中的至少一种与所述外部设备进行通信；当检测到所述第一数字信号端子和所述第二数字信号端子中的一种接收到对应的回复信号时，则控制接收到所述回复信号的第一数字信号端子或第二数字信号端子与所述外部设备进行通信。
在其中一个实施例中，所述电极座还包括正极端子和负极端子；所述电极座包括至少五个端子槽，用于分别容纳所述正极端子、负极端子、模拟信号端子、第一数字信号端子和第二数字信号端子。
在其中一个实施例中，述第一数字信号端子为差分通信端子，所述差分通信端子包括第一信号极片和第二信号极片，所述第一信号极片和所述第二信号极片沿着与所述电池包插入所述外部设备的插入方向垂直的方向上下排布，且所述第一信号极片和所述第二信号极片相互绝缘。
在其中一个实施例中，所述电极座包括六个端子槽；所述第一数字信号端子为差分通信端子，所述差分通信端子包括第一信号极片和第二信号极片，所述六个端子槽用于分别容纳所述正极端子、所述负极端子、所述模拟信号端子、所述差分通信端子的第一信号极片和所述第二信号极片以及所述第二数字信号端子。
一种外部设备，所述外部设备包括充电装置和电动工具中的任一种；所述外部设备上至少设置有第三数字信号端子和第四数字信号端子，所述第三数字信号端子和所述第四数字信号端子分别与前述电池包中的第一数字信号端子和第二数字信号端子相匹配，所述外部设备通过所述第三数字信号端子和所述第四数字信号端子中的至少一种与电池包配接并与所述电池包进行交互。
在其中一个实施例中，所述第三数字信号端子为差分通信端子，所述第四数字信号端子为串口通信端子。
在其中一个实施例中，所述差分通信端子包括CAN通信端子，所述串口通信端子包括UART通信端子。
在其中一个实施例中，当所述外部设备检测到具有配接的电池包时，获取所述电池包的数字信号端子类型，采用与所述电池包的数字信号端子类型匹配的第三数字信号端子和第四数字信号端子中的至少一种与所述电池包进行通信。
在其中一个实施例中，当所述外部设备检测到所述电池包具有与所述第三数字信号端子匹配的第一数字信号端子，以及具有与所述第四数字信号端子匹配的第二数字信号端子时，分别通过所述第三数字信号端子和第四数字信号端子与所述电池包的第一数字信号端子和第二数字信号端子进行通信。
在其中一个实施例中，所述外部设备通过所述第三数字信号端子向所述电池包的所述第一数字信号端子传输控制信号。
在其中一个实施例中，所述第三数字信号端子和所述第四数字信号端子分别具有对应的优先级；当所述外部设备检测到所述电池包具有与所述第三数字信号端子匹配的第一数字信号端子，以及具有与所述第四数字信号端子匹配的第二数字信号端子时，根据所述优先级控制通过所述第三数字信号端子或所述第四数字信号端子，与所述电池包匹配的第一数字信号端子或第二数字信号端子进行通信。
在其中一个实施例中，所述第三数字信号端子的优先级高于所述第四数字信号端子的优先级。
在其中一个实施例中，所述外部设备上还包括模拟信号端子，所述模拟信号端子用于与配接的所述电池包进行模拟信号通信。
在其中一个实施例中，所述外部设备通过所述模拟信号端子检测是否有电池包接入，当检测到有电池包接入时，控制所述第三数字信号端子发送第一握手信号，以及控制所述第四数字信号端子发送第二握手信号，当检测到所述第三数字信号端子和所述第四数字信号端子均接收到对应的回复信号时，则控制所述第三数字信号端子和所述第四数字信号端子中的至少一种与所述电池包进行通信；
当检测到所述第三数字信号端子和所述第四数字信号端子中的一种接收到对应的回复信号时，则控制接收到所述回复信号的第三数字信号端子或第四数字信号端子与所述电池包进行通信。
在其中一个实施例中，所述外部设备还包括正极端子和负极端子以及至少五个端子槽，所述至少五个端子槽用于分别容纳所述正极端子、负极端子、模拟信号端子、第一数字信号端子和第二数字信号端子。
在其中一个实施例中，所述第一数字信号端子为差分通信端子，所述差分通信端子包括第一插片和第二插片，在垂直于所述电池包插入方向的投影面上，所述第一插片与所述第二插片的投影重叠，且所述第一信号极片和所述第二信号极片相互绝缘。
在其中一个实施例中，所述第一数字信号端子为差分通信端子，所述差分通信端子包括第一插片和第二插片，在垂直于所述电池包插入方向的投影面上，所述第一插片与所述第二插片的投影平行。
一种数据传输系统，包括前述电池包和前述外部设备。
附图说明
图1为本申请一实施例提供的数据传输系统的结构示意图；
图2为本申请另一实施例提供的数据传输系统的结构示意图；
图3为为电池包与充电设备之间经模拟信号端子连接的结构示意图；
图4为图3中结构所对应的控制时序图；
图5为充电设备侧电气端子的结构示意图；
图6为电池包侧电气端子的结构示意图。
具体实施方式
为了便于理解本发明，下面将参照相关附图对本发明进行更全面的描述。附图中给出了本发明的优选实施方式。但是，本发明可以以许多不同的形式来实现，并不限于本文所描述的实施方式。相反的，提供这些实施方式的目的是为了对本发明的公开内容理解得更加透彻全面。
在本发明中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系，除非另有明确的限定。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。在本发明的描述中，“多个”的含义是至少两个，例如两个，三个等，除非另有明确具体的限定。
除非另有定义，本文所使用的所有的技术和科学术语与属于本发明的技术领域的技术人员通常理解的含义相同。本文中在本发明的说明书中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本发明。本文所使用的术语“及/或”包括一个或多个相关的所列项目的任意的和所有的组合。
电池包可以与电动工具、充电器等外部设备电性连接，用于为电动工具充电或从充电器获取电能，同时也可以与电动工具、充电器进行数据传输。一般地，电池包上和外部设备上均设置有配套的电气端子，电气端子包括信号端子、电力传输端子等，信号端子用于在电池包与外部设备之间传输数据信号，电力传输端子用于在电池包与外部设备之间传输电力信号。针对信号端子，传统方案中，电池包与外部设备之间一般配置有一组模拟信号端子和一组数字信号端子，电池包与外部设备通信时，先通过模拟信号端子激活上电，然后通过数字信号端子传输数据。由于传统的电池包或外部设备只能与某一特定通信类型的外部设备或电池包通信，无法与其他电动工具或电池包通信，限制了电池包或外部设备的使用。
为此，本申请实施例提供了一种充电设备、电池包、外部设备及数据传输系统。
如图1所示，本申请的一个实施例提供一种充电设备100，用于为电池包200充电。充电设备100包括电池包安装部，用于可拆卸地安装电池包200。电池包安装部包括多个电气端子，充电设备100通过该电气端子与电池包200侧的电气端子连接，用于与电池包200通信，并传输电力给电池包200。充电设备100还包括控制模块110，控制模块110连接电气端子，用于通过电气端子获取电池包的参数，并根据电池包200的参数控制电池包200的充电过程。
参照图1，充电设备100的控制模块110至少包括第一数字通信模块111和第二数 字通信模块112，电气端子至少包括第一数字信号端子121和第二数字信号端子122，第一数字通信模块111连接第一数字信号端子121，用于通过第一数字信号端子121以第一数字通信方式进行数字信号通信，第二数字通信模块112连接第二数字信号端子122，用于通过第二数字信号端子122以第二数字通信方式进行数字信号通信。当充电设备100与电池包200连接时，充电设备100通过第一数字信号端子121和第二数字信号端子122中的至少一种与电池包200进行数字信号通信。
本实施例中，第一数字通信方式和第二数字通信方式为两种通信类型不同的数字信号通信方式。充电设备100内通过集成两种不同的数字通信模块，以匹配具有不同数字通信模块类型的电池包200，从而提高了充电设备100的适配性，使得多种具有不同数字通信模块的电池包200均可以安装在本申请提供的充电设备100上充电。
可以理解的是，第一数字通信模块111和第二数字通信模块112可以集成在控制模块110中，也可以独立于控制模块110之外，并与控制模块110连接。
作为一种示例，充电设备100侧不仅可以设置两种数字通信模块，也可以设置三种或更多种数字通信模块，相应地，充电设备100的电气端子可以设置与三种或多种数字通信模块对应的数字信号端子，以提高充电设备100的适配性。
优选地，第一数字通信方式为CAN(Controller Area Network,控制器局域网络)通信，第二数字通信方式为串口通信。即，本实施例中充电设备100侧的第一数字通信模块111为CAN通信模块，第二数字通信模块112为串口通信模块，更具体地，第二数字通信模块112为UART(Universal Asynchronous Receiver/Transmitter，通用异步收发传输器)通信模块。CAN通信可拓展，CAN总线上可挂接多个从机，因此通过在充电设备100上设置CAN通信模块，充电设备100可以为多个电池包200同时或分时充电，与多个电池包200通信。UART通信方式具有抗干扰的特点，可以在有电磁干扰环境、输电线区域等场景下采用UART通信方式，当充电设备100采用UART通信方式进行数字信号通信时，通信稳定性高。
作为又一种示例，第一数字通信模块111和第二数字通信模块112可以均为串口通信模块，以匹配具有不同串口通信模块的电池包200。举例来说，第一数字通信模块111可以为UART通信模块，第二数字通信模块可以为RS232通信模块。当然，第一数字通信模块111和第二数字通信模块112也可以是其他类型的串口通信模块，可以根据实际需求选择。
在其中一个实施例中，充电设备100在与电池包200通信时，充电设备100的控制模块110判断是否接收到与第一数字通信模块111匹配的数字信号，并在接收到时通过第一数字通信模块111通信。控制模块110未接收到与第一数字通信模块111匹配的数字信号时，判断是否接收到与第二数字通信模块112匹配的数字信号，并在接收到时通过第二数字通信模块112通信。通信成功后，充电设备100启动对电池包200的充电过程。
具体来说，充电设备100与电池包200进行数字信号通信时，根据预设的优先级，先采用优先级高的数字通信模块与电池包200通信。本实施例中，第一数字通信模块111的优先级高于第二数字通信模块112的优先级。也即，充电设备100先通过第一数字通信模块111发送握手信号至电池包200，若充电设备100通过第一数字通信模块111接收到电池包200反馈的数字信号，则充电设备100和电池包200之间通过第一数字通信方式进行数字通信。若充电设备100未通过第一数字通信模块111接收到电池包200反 馈的数字信号，则判定电池包200不具备相应的数字通信模块，此时充电设备100通过第二数字通信模块112发送握手信号至电池包200，若充电设备100通过第二数字通信模块112接收到电池包200反馈的数字信号，则充电设备100和电池包200之间通过第二数字通信方式进行数字通信。若充电设备100也未通过第二数字通信模块接收到电池包反馈的数字信号，则判定电池包200的数字通信模块与充电设备100内的两种数字通信模块均不匹配，充电设备10不启动对电池包200的充电。
由于CAN通信的数据传输速度快，本实施例中，充电设备100优先采用CAN通信模块发送握手信号，若CAN通信握手不成功，再采用串口通信模块发送握手信号。当然，在其他实施方式中，充电设备100也可以优先采用串口通信模块发送握手信号，串口通信失败时再采用CAN通信发送握手信号，可以根据使用场景调节。
作为另外一种示例，控制模块110也可以同时通过CAN通信模块和串口通信模块发送握手信号至电池包200，并判断是否通过CAN通信模块或串口通信模块接收到电池包200反馈的握手信号。若控制模块110通过两个数字通信模块均接收到电池包200反馈的握手信号，则控制模块110优先采用CAN通信模块与电池包通信，并启动对电池包200的充电。当控制模块110仅通过其中一个数字通信模块接收到反馈信号，则采用相应的数字通信模块与电池包200通信，并启动对电池包200的充电。当控制模块110未接收到电池包200的反馈信号，则控制模块110不启动对电池包200的充电。
本申请的一个实施例还提供一种电池包，如图1所示，电池包200包括第三数字通信模块211和第四数字通信模块212，电池包200侧的电气端子包括第三数字信号端子221和第四数字信号端子222。第三数字通信模块211用于通过第三数字信号端子221以第一数字信号通信方式进行数字通信，第四数字通信模块212用于通过第四数字信号端子222以第二数字信号通信方式进行数字通信。相应地，第一数字通信方式为CAN通信，第二数字通信方式为串口通信。也即，第三数字通信模块211为CAN通信模块，第四数字通信模块212为串口通信模块。更具体地，第四数字通信模块212为UART通信模块。从而本申请提供的充电设备100为本申请提供的电池包200充电时，第一数字信号端子121与第三数字信号端子221配接，第二数字信号端子122与第四数字信号端子222配接，充电设备100可以采用其中任意一种数字通信模块与电池包200通信。优选地，由于CAN通信的数据传输速度快，充电设备100和电池包200之间优先采用CAN通信模块进行数字信号通信。
在一个实施例中，在充电过程中，当充电设备100的控制模块110检测到第一数字通信模块111通信失败，则控制模块110通过第二数字通信模块112进行数字通信，同时控制充电过程继续。
也就是说，在实际应用中，充电设备100与电池包200连接时，多组对应的数字信号端子均保持连接状态，但在数据传输时，选取其中一组相连的数字信号端子进行数字通信，其他组相连的数字信号端子可以作为候选信号端子，在当前通信用信号端子出现连接不良时或当前数字通信模块故障时，再切换至其他组相连的数字通信模块和数字信号端子进行数字通信。本实施例中，由于CAN通信的优先级高于串口通信，因此充电设备100和电池包200之间优先采用CAN通信模块进行数字通信，CAN通信失败时再采用串口通信模块进行数字通信，可以防止一旦信号端子出现连接松动、损坏或通信模块故障等异常连接状态时，便会故障停机的问题，保障充电设备100和电池包200在两者之间的其中一种数字通信失败时，也能够通过其余备用的数字通信模块实现正常通信，确 保整个系统的正常运行。
请参照图2，在一个实施例中，充电设备100的控制模块110还包括第一模拟通信模块113，以及与第一模拟通信模块113连接的第一模拟信号端子123，相应地，电池包200侧包括第二模拟通信模块213以及与第二模拟通信模块213连接的第二模拟信号端子223。当充电设备100与电池包200配接时，第二模拟信号端子223与第一模拟信号端子123配接，从而充电设备100可以通过第一模拟通信模块113和第二模拟通信模块213与电池包200进行模拟信号通信，接收电池包200的状态信息，根据电池包200的状态信息控制充放电过程。其中，电池包200的状态信息包括电池包200的故障状态或电池包200的激活状态。也就是说，充电设备100可以通过模拟信号端子判断电池包200是否故障，以及电池包200是否插入充电设备100。
图3为充电设备200与电池包100之间通过模拟信号端子和模拟通信模块相连的具体示例。图3中左侧是电池包200内第二模拟通信模块的电路状况，右侧为充电设备100内第一模拟通信模块的电路状况，电池包200与充电设备100之间通过模拟信号端子连接。
图4为电池包内驱动管的控制信号Vcon及充电设备内模拟信号接收端Vo处的电压示意图。如图3和图4所示，驱动管Q1由电池包200内的控制器控制，当Q1导通(Vcon＝H)时，充电设备侧100的模拟信号端子处的电压，Vo＝VCC；当Q1截止(Vcon＝L)时，充电设备侧100的模拟信号连接端子处的电压,Vo＝L；其中V1<Vref<V2。即，电池包200侧通过控制Q1的导通或截止可以控制电池包100内的对地阻抗，从而控制模拟信号端子处的电压，以及控制Vo的电压。在充电设备100内部，Vo直接连接至充电设备100的控制模块110，控制模块110根据Vo的电平高低判断电池包的状态。当电池包200插入充电设备100时，电池包200侧通过控制晶体管Q1调节模拟信号端子处的输出电压，使得充电设备100可以根据模拟信号端子处的电压激活电池包200。当电池包侧故障时，电池包200侧主动拉低模拟信号端子处的电压，充电设备100侧即可根据模拟信号端子的低电压状态判断当前电池包200为故障状态，并立即停止为电池包200充电。
当充电设备100为电池包200充电时，充电设备100不仅通过数字通信模块与电池包200进行数字信号通信，同时也通过模拟信号通信模块与电池包200进行模拟信号通信。具体地，电池包200插接在充电设备100上时，电池包200侧通过控制模拟信号端子处的电压，使得充电设备100侧可以根据模拟信号端子处的电压获知电池包200已接入，然后充电设备100通过CAN通信模块发送握手信号，并判断是否接收到电池包200返回的CAN通信信号，若接收到电池包200返回的CAN通信信号，则充电设备100和电池包200之间采用CAN通信模块进行数字通信。
进一步地，在充电设备100和电池包200之间采用CAN通信模块进行数字通信过程中，控制模块110实时监测模拟信号通信端子处的电压，并根据模拟信号端子处的电压高低判断电池包200是否发生过流、过压、过温等故障，或电池包200是否充满，并在判断电池包200故障或电池包200充满时，控制模块110控制充电设备100停止为电池包200充电。
当充电设备100与电池包200之间采用CAN通信模块通信失败时，充电设备100采用串口通信模块与电池包通信，并且，在串口通信过程中，控制模块110不再接收模拟信号端子处的电压状态，而是根据串口通信过程中接收到的电池包200的参数判断电池包200是否故障，并在电池包200故障时控制充电设备100停止为电池包200充电。这 样设置的原因在于，充电设备100与电池包200进行CAN通信之前，需要先根据模拟信号端子处接收的电平状态判断电池包是否接入，并在判断电池包接入时，为电池包分配数字通信地址，然后才能进行CAN通信，若CAN通信失败，则模拟信号通信可能故障，例如模拟信号端子插接不稳定，或模拟通信模块故障，因此当充电设备100和电池包200转至串口通信模块进行数字通信时，由于模拟信号通信可能存在故障，充电设备100不再检测模拟信号端子处的电压，而是根据数字通信过程中接收到的电池包200的电压、电流、温度等信息判断电池包200是否故障或电池包是否充满，并在电池包200故障或电池包200充满时停止充电。
上述实施例中，充电设备100和电池包200之间不仅可以通过模拟信号端子传输故障状态，还会通过数字信号端子传输电池包200的参数，以便充电设备100端可以获知电池包200的具体故障信息，从而即使模拟信号端子接触不良，仍然可以通过数字信号通信判断电池包200是否故障，从而实现双充保障，可以提高充电安全性。
作为另一种实施方式，当充电设备100与电池包200之间采用第一数字通信模块111通信失败时，充电设备100停止为电池包200充电，并不再转到第二数字通信模块112进行数字信号通信。也即，可以根据实际需求判断是否在CAN通信模块通信失败时切换数字通信模块。
在一个实施例中，如图2所示，充电设备100的电气端子还包括第一正极端子124和第一负极端子125。电池包200侧包括第二正极端子224和第二负极端子225，第一正极端子124用于与第二正极端子224配接，第一负极端子125用于与第二负极端子225配接，正负极端子用于传输电力。
本实施例中，由于第一数字信号端子121为CAN通信端子，而CAN通信为差分通信，需要两根传输线缆传输数据，因此第一数字信号端子相应地包括两个接触端子，分别连接两根传输线缆。两个接触端子为第一接触端子121a和第二接触端子121b，且第一接触端子121a和第二接触端子121b之间相互绝缘。
在第一方向上，第一接触端子121a与第二接触端子121b的投影至少部分重叠，且第一接触端子121a和第二接触端子121b的投影与第一正极端子124、第一负极端子125、第一模拟信号端子123、第二数字信号端子122的投影互不重叠。其中，第一方向与所述电池包的插拔方向垂直，且与第一正极端子124、第一负极端子125、第一模拟信号端子123、第二数字信号端子122的排布方向垂直。
如图5所示，电池包的插拔方向为图中的y方向，各个电气端子的排布方向为x方向，第一方向为z方向。第一接触端子121a和第二接触端子121b沿z方向排布。
本实施例中，充电设备100侧的电气端子可以为插片，各个插片之间相互绝缘。相应地，电池包200侧设置插槽，插槽内设置梅花触头，用于接收插片，并与插片电连接。
如图6所示，本申请提供的电池包200包括第二正极端子224、第二负极端子225、第二模拟信号端子223、第三数字信号端子221和第四数字信号端子222。第二正极端子224、第二负极端子225、第二模拟信号端子223、第三数字信号端子221和第四数字信号端子222与充电设备100侧的第一正极端子124、第一负极端子125、第一模拟信号端子123、第一数字信号端子121和第二数字信号端子122的排布位置相同。
电池包200的电极座包括五个端子槽，相邻端子槽之间设置有阻隔件，每个端子槽的延伸方向均垂直于电池包的插拔方向。图6中，电池包的插拔方向垂直于纸面。五个端子槽用于分别容纳第二正极端子224、第二负极端子225、第二模拟信号端子223、第 三数字信号端子221和第四数字信号端子222。其中，第三数字信号端子221包括第三接触端子221a和第四接触端子221b，第三接触端子221a和第四接触端子221b设置于同一端子槽内，且两个端子沿端子槽的延伸方向排布。第三接触端子221a和第四接触端子221b之间相互绝缘。本实施例中，第三接触端子221a和第四接触端子221b之间通过设置绝缘件221c实现绝缘。
作为又一个实施例，电池包200侧设置有六个端子槽，相邻端子槽之间设置有阻隔件，每个端子槽的延伸方向均垂直于电池包的插拔方向。其中，第三数字信号端子221包括第三接触端子221a和第四接触端子221b，第三接触端子221a和第四接触端子221b分别设置于两个端子槽内。也即，六个端子槽用于分别容纳第二正极端子224、第二负极端子225、第二模拟信号端子223、第三接触端子221a、第四接触端子221b和第四数字信号端子222。
相应地，充电设备100侧设置有六个插片，六个插片的位置分别于六个端子槽对应。其中，第一数字信号端子121包括第一接触端子121a和第二接触端子121b，第一接触端子121a和第二接触端子121b相互绝缘。其中，第一接触端子121a和第二接触端子121b的位置于第三接触端子221a和第四接触端子221b相对应。也即，在第一方向上，第一接触端子121a与第二接触端子121b的投影平行，且第一接触端子121a和第二接触端子121b的投影与第一正极端子124、第一负极端子125、第一模拟信号端子123、第二数字信号端子122的投影平行。其中，第一方向与电池包的插拔方向垂直，且与第一接触端子121a、第二接触端子121b、第一正极端子124、第一负极端子125、第一模拟信号端子123、第二数字信号端子122的排布方向垂直。
本申请的又一实施例提供一种电气设备，用于可拆卸地连接电池包，以便为电池包充电或从电池包获取电能。电气设备包括电池包安装部，用于安装电池包。电池包安装部包括多个电气端子，电气设备通过电气端子与电池包电连接。控制模块连接电气端子，以便通过电气端子获取电池包的参数，并根据电池包的参数控制充电过程。控制模块至少包括第一数字通信模块和第二数字通信模块，电气端子至少包括第一数字信号端子和第二数字信号端子，第一数字通信模块连接第一数字信号端子，用于通过第一数字信号端子以第一数字通信方式进行数字通信。第二数字通信模块连接第二数字信号端子，用于通过第二数字信号信号端子以第二数字通信方式进行数字通信。当电气设备与电池包连接时，电气设备通过第一数字信号端子和第二数字信号端子中的至少一种与电池包通信。
上述实施例中的电气设备可以是电动工具，例如割草机、打草机、吹风机、修枝机等。电动工具作为主机，用于接收电池包的状态信息和电池包的参数，并根据电池包的状态信息和电池包的参数控制电池包的放电过程。上述电动工具和电池包的之间通信逻辑与充电设备和电池包之间的通信逻辑相同，在此不再赘述。
电动工具侧的端子排布结构与充电设备侧的端子排布结构相同，在此不再赘述。
本申请的一个实施例还提供一种数据传输系统，包括充电装置和电池包，电池包可拆卸地安装于充电装置上，用于从充电装置获取电能。充电装置至少包括第一数字通信模块、第二数字通信模块以及与第一数字通信模块连接的第一数字通信端子和与第二数字通信模块连接的第二数字通信端子，第一数字通信模块用于通过第一数字信号端子以第一数字通信方式进行数字通信，第二数字通信模块用于通过第二数字信号端子以第二数字通信方式进行数字通信；电池包至少包括第三数字通信模块、第四数字通信模块以 及与第三数字通信模块连接的第三数字通信端子和与第四数字通信模块连接的第四数字通信端子，第三数字通信模块用于通过第三数字信号端子以第一数字通信方式进行数字通信，第四数字通信模块用于通过第四数字信号端子以第二数字通信方式进行数字通信；当电池包与充电设备配接时，第三数字通信端子与第一数字通信端子配接，第四数字通信端子与第二数字通信端子配接；供电系统还包括控制模块，用于控制充电装置对电池包通过第一数字通信方式和第二数字通信方式中的至少一种进行数字通信。
以上所述实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上所述实施例仅表达了本申请的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本申请构思的前提下，还可以做出若干变形和改进，这些都属于本申请的保护范围。因此，本申请的保护范围应以所附权利要求为准。

Claims (14)

  1. 一种充电设备，用于为电池包充电，其特征在于，所述充电设备包括：
    电池包安装部，用于可拆卸地安装所述电池包，所述电池包安装部包括多个电气端子，所述充电设备通过所述电气端子与所述电池包电连接；
    控制模块，所述控制模块连接所述电气端子，以便通过所述电气端子获取所述电池包的参数，并根据所述电池包的参数控制充电过程；
    所述控制模块至少包括第一数字通信模块和第二数字通信模块，所述电气端子至少包括第一数字信号端子和第二数字信号端子，所述第一数字通信模块连接所述第一数字信号端子，用于通过所述第一数字信号端子以第一数字通信方式进行数字通信，所述第二数字通信模块连接所述第二数字信号端子，用于通过所述第二数字信号端子以第二数字通信方式进行数字通信；
    当所述充电设备与所述电池包连接时，所述充电设备通过所述第一数字信号端子和所述第二数字信号端子中的至少一种与所述电池包进行数字通信。
  2. 根据权利要求1所述的充电设备，其特征在于，所述控制模块判断是否接收到与所述第一数字通信模块匹配的数字信号，并在接收到时采用所述第一数字通信模块通信；
    当所述控制模块未接收到与所述第一数字通信模块匹配的数字信号，判断是否接收到与所述第二数字通信模块匹配的数字信号，并在接收到时采用所述第二数字通信模块通信。
  3. 根据权利要求2所述的充电设备，其特征在于，在充电过程中，当所述控制模块检测到所述第一数字通信模块通信失败，所述控制模块通过所述第二数字通信模块进行数字通信，同时控制所述充电过程继续。
  4. 根据权利要求3所述的充电设备，其特征在于，所述控制模块还包括第一模拟通信模块，所述电气端子还包括与所述第一模拟通信模块连接的第一模拟信号端子，所述第一模拟通信模块通过所述第一模拟信号端子与所述电池包进行模拟信号通信，以接收外部的故障状态信号和所述电池包的激活状态信号；
    当所述充电设备通过所述第一通信模块进行数字通信时，所述充电设备通过所述第一模拟通信模块接收所述故障状态信号，并根据接收到的所述故障状态信号控制所述电池包的充电过程；
    当所述充电设备通过所述第二通信模块进行数字通信时，所述充电设备通过所述第二数字通信模块接收所述电池包的参数，并根据所述电池包的参数控制所述电池包的充电过程。
  5. 根据权利要求2所述的充电设备，其特征在于，在充电过程中，当所述控制模块检测到所述第一数字通信模块通信失败，所述控制模块控制所述充电设备停止为所述电池包充电。
  6. 根据权利要求1所述的充电设备，其特征在于，所述第一数字通信方式为CAN通信，所述第二数字通信方式为串口通信。
  7. 根据权利要求1所述的电池包，其特征在于，所述电气端子还包括第一正极端子、第一负极端子和第一模拟信号端子；
    所述第一数字信号端子包括第一接触端子和第二接触端子，所述第一接触端子和所述第二接触端子相互绝缘；
    在第一方向上，所述第一接触端子与所述第二接触端子的投影至少部分重叠，且所 述第一接触端子和所述第二接触端子的投影与所述第一正极端子、所述第一负极端子、所述第一模拟信号端子、所述第二数字信号端子的投影互不重叠；
    其中，所述第一方向与所述电池包的插拔方向垂直，且与所述第一正极端子、所述第一负极端子、所述第一模拟信号端子、所述第二数字信号端子的排布方向垂直。
  8. 根据权利要求1所述的电池包，其特征在于，所述电气端子还包括第一正极端子、第一负极端子和第一模拟信号端子；
    所述第一数字信号端子包括第一接触端子和第二接触端子，所述第一接触端子和所述第二接触端子相互绝缘；
    在第一方向上，所述第一接触端子与所述第二接触端子的投影平行，且所述第一接触端子和所述第二接触端子的投影与所述第一正极端子、所述第一负极端子、所述第一模拟信号端子、所述第二数字信号端子的投影平行；
    其中，所述第一方向与所述电池包插入所述外部设备的方向垂直，且与所述第一接触端子、所述第二接触端子、所述第一正极端子、所述第一负极端子、所述第一模拟信号端子、所述第二数字信号端子的排布方向垂直。
  9. 一种电气设备，其特征在于，用于可拆卸地连接电池包，以便为所述电池包充电或从所述电池包获取电能，所述电气设备包括：
    电池包安装部，用于安装电池包，所述电池包安装部包括多个电气端子，所述电气设备通过所述电气端子与所述电池包电连接；
    控制模块，所述控制模块连接所述电气端子，以便通过所述电气端子获取所述电池包的参数，并根据所述电池包的参数控制充电过程；
    所述控制模块至少包括第一数字通信模块和第二数字通信模块，所述电气端子至少包括第一数字信号端子和第二数字信号端子，所述第一数字通信模块连接所述第一数字信号端子，用于通过所述第一数字信号端子以第一数字通信方式进行数字通信，所述第二数字通信模块连接所述第二数字信号端子，用于通过所述第二数字信号端子以第二数字通信方式进行数字通信；
    当所述电气设备与所述电池包连接时，所述充电设备通过所述第一数字信号端子和所述第二数字信号端子中的至少一种与所述电池包进行数字通信。
  10. 一种电池包，用于与权利要求1-8中任一项所述的充电设备配接，其特征在于，所述电池包包括：
    壳体；
    电芯，所述电芯设置于所述壳体内，用于存储或释放电能；
    控制模块，所述控制模块连接所述电芯，用于检测所述电芯的参数，并将所述电芯发送发送至外部的电气设备，以便所述充电设备根据所述参数控制所述电池包的充放电过程；
    电极座，所述电极座设置在所述壳体上，所述电极座包括多个电气端子，多个所述电气端子与所述控制模块连接，所述电池包通过所述电气端子与所述电气设备配接并与所述电气设备进行交互；
    所述控制模块至少包括第三数字通信模块和第四数字通信模块，所述电气端子至少包括第三数字信号端子和第四数字信号端子，所述第三数字通信模块用于通过所述第三数字信号端子以第一数字通信方式与所述充电设备进行数字信号通信，所述第四数字通信模块用于通过所述第四数字信号端子以第二数字通信方式与所述充电设备进行数字信 号通信；
    当所述电池包与所述充电设备连接时，所述第三数字信号端子与所述第一数字信号端子电连接，所述第四数字信号端子与所述第二数字信号端子电连接，所述电池包通过所述第三数字信号端子和所述第四数字信号端子中的至少一种与所述充电设备进行数字信号通信。
  11. 根据权利要求10所述的电池包，其特征在于，所述第一数字通信方式为CAN通信，所述第二数字通信方式为串口通信。
  12. 根据权利要求10所述的电池包，其特征在于，所述电气端子还包括第二模拟信号端子，所述第二模拟信号端子用于与配接的所述充电设备进行模拟信号通信；
    所述电气端子还包括第二正极端子和第二负极端子；
    所述电极座包括五个端子槽，相邻所述端子槽之间设置有阻隔件，每个所述端子槽的延伸方向均垂直于所述电池包的插拔方向，所述五个端子槽用于分别容纳所述第二正极端子、第二负极端子、第二模拟信号端子、第三数字信号端子和第四数字信号端子；
    其中，所述第三数字信号端子包括第三接触端子和第四接触端子，所述第三接触端子和所述第四接触端子设置在同一端子槽内，且所述第三接触端子和所述第四接触端子沿所述端子槽的延伸方向排布，所述第三接触端子和所述第四接触端子之间相互绝缘。
  13. 根据权利要求10所述的电池包，其特征在于，
    所述电气端子还包括第二模拟信号端子，所述第二模拟信号端子用于与配接的所述充电设备进行模拟信号通信；
    所述电气端子还包括第二正极端子和第二负极端子；
    所述电极座包括六个端子槽，相邻所述端子槽之间设置有阻隔件，每个所述端子槽的延伸方向均垂直于所述电池包的插拔方向；
    所述第三数字信号端子包括第三接触端子和第四接触端子，所述六个端子槽用于分别容纳所述第二正极端子、所述第二负极端子、所述第二模拟信号端子、第三接触端子、所述第四接触端子以及所述第四数字信号端子。
  14. 一种数据传输系统，其特征在于，包括充电装置和电池包，所述电池包可拆卸地安装于所述充电装置上，用于从所述充电装置获取电能；
    所述充电装置至少包括第一数字通信模块、第二数字通信模块以及与所述第一数字通信模块连接的第一数字通信端子和与所述第二数字通信模块连接的第二数字通信端子，所述第一数字通信模块用于通过所述第一数字信号端子以第一数字通信方式进行数字通信，所述第二数字通信模块用于通过所述第二数字信号端子以第二数字通信方式进行数字通信；
    所述电池包至少包括第三数字通信模块、第四数字通信模块以及与所述第三数字通信模块连接的第三数字通信端子和与所述第四数字通信模块连接的第四数字通信端子，所述第三数字通信模块用于通过所述第三数字信号端子以第一数字通信方式进行数字通信，所述第四数字通信模块用于通过所述第四数字信号端子以第二数字通信方式进行数字通信；
    当所述电池包与所述充电设备配接时，所述第三数字通信端子与所述第一数字通信端子配接，所述第四数字通信端子与所述第二数字通信端子配接；
    所述供电系统还包括控制模块，用于控制所述充电装置对所述电池包通过所述第一数字通信方式和所述第二数字通信方式中的至少一种进行数字通信。
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