CN218548687U

CN218548687U - Charger and charging system

Info

Publication number: CN218548687U
Application number: CN202121180953.2U
Authority: CN
Inventors: 罗明; 刘传君; 崔阳; 陶雨; 李保安; 庄宪; 严安; 霍晓辉; 李志远
Original assignee: Globe Jiangsu Co Ltd
Current assignee: Globe Jiangsu Co Ltd
Priority date: 2020-11-06
Filing date: 2021-05-28
Publication date: 2023-02-28
Anticipated expiration: 2031-05-28
Also published as: CN114447533B; CN215419646U; CN215418445U; CN114448008A; CN114530899A; CN114447450A; CN114448011A; CN218939917U; CN218919168U; CN114448012A; CN114448013A; CN114447533A; CN214797631U; CN114447457A; CN218939916U; CN114448009A; CN114530900A; CN218548688U; CN114448010A; CN215911524U

Abstract

The utility model discloses a charger and charging system, the charger includes: the charger comprises a charger shell, a first circuit board, a second circuit board and a second charging interface, wherein the first circuit board is arranged in the charger shell, a first charging interface and a first power supply terminal are arranged on the charger shell, and the first charging interface and the first power supply terminal are respectively and electrically connected with the first circuit board; the first circuit board is integrated with an AC-DC module, a control and protocol module and a DC-DC module, the AC-DC module is electrically connected with the DC-DC module, the DC-DC module is electrically connected with the first charging interface, the control and protocol module is electrically connected with the DC-DC module and the first charging interface respectively, and the first charging interface is a Type-C interface. The utility model discloses can be through connecting two chargers in order to charge to the battery package to and can realize that a charger charges for a plurality of battery packages simultaneously, or utilize a charger to charge for same battery package, in order to improve charge efficiency.

Description

Charger and charging system

Technical Field

The utility model relates to a battery charging technology field, concretely relates to charger and charging system.

Background

In recent years, with the development of battery material technology, the application range of the battery cell assembly has been greatly increased. The electric tool products on the market are used in a large quantity, but the current battery pack can only supply power to the electric devices with the same voltage, the output is single, the limitation is large, and other consumer electronic products cannot use the power supply for power supply. However, the conventional charger generally can charge only a single battery pack, but cannot charge a plurality of battery packs at the same time, so that a user needs to spend a long time for charging the battery packs one by one each time after using up the electric tool. And the existing charger charges the battery pack through a single interface, so that the charging process is slow and the time consumption is long.

In view of the above, there is a need for an improved battery pack and charger to solve the above problems.

SUMMERY OF THE UTILITY MODEL

For solving the technical problem, the utility model provides a charger and charging system to improve the battery package and can only supply power to the electric device of the same voltage, the output is comparatively single, and the limitation is bigger, and other consumer electronics products can't use this mains operated and current charger can only charge for single battery package usually, can not charge for a plurality of battery packages simultaneously, and the battery package charging process consumes the long problem of time.

The utility model provides a charger, include: the charger comprises a charger shell, a first circuit board, a first charging interface and a first power supply terminal, wherein the first circuit board is arranged in the charger shell, the first charging interface and the first power supply terminal are respectively and electrically connected with the first circuit board and are positioned on two opposite sides of the charger shell;

the first circuit board is integrated with an AC-DC module, a control and protocol module and a DC-DC module, the AC-DC module is connected with the DC-DC module, the DC-DC module is connected with the first charging interface, the control and protocol module is respectively connected with the DC-DC module and the first charging interface, and the first charging interface is a Type-C interface.

The utility model discloses an embodiment, the first interface that charges is including a plurality of Type-C interfaces, and each Type-C interface all is connected with a DC-DC module, just control and agreement module respectively with each DC-DC module and each Type-C interface connection.

The utility model also provides a charging system, include:

the battery pack comprises a battery pack shell, wherein an electric core assembly and a second circuit board are arranged in the battery pack shell, and the second circuit board is electrically connected with the electric core assembly;

the plurality of second charging interfaces are assembled on the second circuit board, electrically connected with the second circuit board and positioned on the side surface of the battery pack;

the charger comprises a charger shell, a first circuit board, a first charging interface and a first power supply terminal, wherein the first circuit board is arranged in the charger shell, the first charging interface and the first power supply terminal are respectively and electrically connected with the first circuit board and are positioned on two opposite sides of the charger shell;

the first circuit board is integrated with an AC-DC module, a control and protocol module and a DC-DC module, the AC-DC module is connected with the DC-DC module, the DC-DC module is connected with the first charging interface, and the control and protocol module is respectively connected with the DC-DC module and the first charging interface;

the first interface that charges with the second interface that charges sets up to Type-C interface.

In an embodiment of the present invention, the battery core assembly includes a plurality of battery cores, and the battery cores are mounted in a battery core support, the battery core support is located in the battery enclosure, and the battery cores are connected by electrode plates.

The utility model discloses an embodiment, the second interface that charges includes first Type-C interface and second Type-C interface at least, first Type-C interface with second Type-C interface assembles respectively on the circuit board, and with the circuit board electricity is connected.

In an embodiment of the present invention, an insertion portion is disposed on the top of the battery pack case, and two sides of the insertion portion are provided with slide rails.

In an embodiment of the present invention, a terminal interface is installed at the top of the battery pack case, the terminal interface is located between the slide rails, and the terminal interface is electrically connected to the circuit board.

In an embodiment of the present invention, the first Type-C interface and the second Type-C interface are located on two sides of the insertion portion or on the same side.

In an embodiment of the present invention, the first Type-C interface and the second Type-C interface are located on a top surface of the insertion part.

In an embodiment of the present invention, the first Type-C interface and the second Type-C interface are located on the same side or both sides of the battery pack case.

In an embodiment of the present invention, when the first charging interface includes a Type-C interface, the battery pack is connected to the first charging interfaces of the two chargers through a plurality of second charging interfaces respectively.

In an embodiment of the present invention, when the first charging interface includes two Type-C interfaces, the battery pack is respectively connected to two first charging interfaces of the same charger through a plurality of second charging interfaces, or is charged for different battery packs through different first charging interfaces on the charger.

The utility model provides a charging system, through set up two at least Type-C interfaces on the battery package and make the battery package can supply power for other consumer electronics products outside, can also be through connecting two chargers in order to charge to the battery package to improve charge efficiency, and through set up two Type-C interfaces on the charger in order to realize that a charger can charge for a plurality of battery packages simultaneously, or utilize a charger to charge for same above-mentioned battery package, in order to improve charge efficiency.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a charging system according to the present invention.

Fig. 2 is a schematic structural diagram of a battery pack in a charging system according to the present invention.

Fig. 3 is a schematic structural view of the upper case of the battery pack according to the present invention.

Fig. 4 is a schematic top view of the upper case of the battery pack according to the present invention.

Fig. 5 is an assembly schematic diagram of the locating part and the mounting groove cover in the battery pack provided by the present invention.

Fig. 6 is a schematic structural diagram of a limiting part of a battery pack according to the present invention.

Fig. 7 is a schematic bottom view of a limiting member of a battery pack according to the present invention.

Fig. 8 is a schematic structural diagram of a lower case of a battery pack according to the present invention.

Fig. 9 is the utility model provides a circuit board and the structure schematic diagram of Type-C interface of battery package.

Fig. 10 is a schematic structural diagram of a cell support of a battery pack according to the present invention.

Fig. 11 is a schematic position diagram of the charging interface located on two sides of the battery can casing according to the present invention.

Fig. 12 is a schematic position diagram of the charging interface located on the same side of the battery can casing according to the present invention.

Fig. 13 is a schematic position diagram of the charging interface located on two sides of the insertion portion.

Fig. 14 is a schematic diagram of the position of the charging interface insertion part on the same side as the present invention.

Fig. 15 is a schematic diagram of a position of the charging interface located at the terminal interface.

Fig. 16 is a schematic diagram of a position of the charging interface at the top of the battery pack according to the present invention.

Fig. 17 is another schematic diagram of the position of the charging interface at the top of the battery pack according to the present invention.

Fig. 18 is another schematic structural diagram of a charging system according to the present invention.

Fig. 19 is a schematic diagram of a circuit structure of a charger according to the present invention.

Fig. 20 is a block diagram illustrating a structure of a battery pack disclosed in an embodiment of the present invention.

Fig. 21 is a block diagram illustrating another structure of the battery pack disclosed in the embodiment of the present invention.

Fig. 22 is a block diagram illustrating a structure of a charging control system disclosed in an embodiment of the present invention.

Fig. 23 is a block diagram showing another structure of the charging control system disclosed in the embodiment of the present invention.

Fig. 24 is a block diagram showing another structure of the charge control system disclosed in the embodiment of the present invention.

Fig. 25 is a schematic view showing a work flow of the charging control method disclosed in the embodiment of the present invention.

Fig. 26 shows a schematic flow chart of a working process of a detection device of the type disclosed in an embodiment of the present invention.

Fig. 27 is a schematic view of a charging process disclosed in an embodiment of the present invention.

Fig. 28 is a block diagram of a charging system disclosed in an embodiment of the present invention.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can be implemented or applied by other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

It should be noted that the drawings provided in the present embodiment are only for illustrating the basic idea of the invention in a schematic manner, and only the components related to the invention are shown in the drawings rather than being drawn according to the number, shape and size of the components in actual implementation, and the form, quantity and proportion of the components in actual implementation may be changed at will, and the layout of the components may be more complicated.

For solving the battery package and can only be to the electric device power supply of the same voltage, the output is comparatively single, and the limitation is bigger, and other consumer electronics products can't use this mains operated and current charger can only charge for single battery package usually, can not charge for a plurality of battery packages simultaneously to and battery package charging process consumes time long problem, the utility model provides a charging system, as shown in fig. 1 to 11, including battery package 100 and charger, connect through charging wire 1001 between battery package 100 and the charger.

As shown in fig. 1 to 10, in this embodiment, the battery pack 100 includes a battery pack case 10, a second circuit board 13, a cell holder 14, a cell assembly 120, and a second charging interface. The battery core assembly 120 includes a plurality of battery cells, a plurality of battery cells are installed in the battery cell support 14, the battery cell support 14 is located in the battery pack case 10, and the battery cells are connected by an electrode plate 141, the second circuit board 13 is electrically connected to the battery cells by the electrode plate 141, the second circuit board 13 is located above the battery cell support 14, the second charging interface is electrically connected to the circuit board 13, in this embodiment, the second charging interface at least includes a first Type-C interface 122a and a second Type-C interface 122b, one end of the first Type-C interface 122a and one end of the second Type-C interface 122b are installed on the second circuit board 13, and the other end of the first Type-C interface 122a and the other end of the second Type-C interface are located in a through hole 1001 on the battery pack case 10, and in this embodiment, the second circuit board 13, the battery cell support 14, and the battery core assembly 120 are all located in the battery pack case 10.

As shown in fig. 2 to fig. 4, in the present embodiment, a plugging portion 1101 is disposed on a top surface of the battery pack case 10, and sliding rails 1102 are disposed on two sides of the plugging portion 1101, and the sliding rails 1102 are used for connecting with a tool. Specifically, as shown in fig. 3, the battery pack case 10 includes an upper case 11 and a lower case 12, the upper case 11 is fixedly connected to the lower case 12, the electric core assembly 120 and the circuit board 13 are accommodated in an accommodating space formed by assembling the upper case 11 and the lower case 12, an insertion part 1101 is disposed on a top surface of the upper case 11, slide rails 1102 are disposed on two sides of the insertion part 1101, the terminal interface 131 is disposed at one end of the insertion part 1101 and is located between the slide rails 1102 on two sides of the insertion part 1101, and when the external electric tool is connected to the battery pack 100 through the slide rails 1101, the second power supply terminal 132 is electrically connected to the external electric tool.

As shown in fig. 2 to 4, a limiting member mounting groove 112 is formed in the upper case 11 of the battery pack case 10, a limiting member 111 is mounted in the limiting member mounting groove 112 and sealed by a mounting groove cover 1121, and the limiting member 111 is used for easily separating the battery pack 100 when the battery pack 100 is inserted into or removed from the battery pack case. In this embodiment, the plugging portion 1101 is located on the upper case 11, and a terminal interface 131 is installed at the top of the battery pack case 10, where the terminal interface 131 is located at one end of the plugging portion 1101 and located between the sliding rails 1102 on two sides of the plugging portion 1101.

As shown in fig. 5 to 9, in this embodiment, a second power supply terminal 132 is further integrated on the second circuit board 13, the second power supply terminal 132 also passes through the second circuit board 13 and is electrically connected to the battery pack assembly 120, a terminal interface 131 is opened at one end of the plugging portion 1101 on the top surface of the battery pack case 10, the second power supply terminal 132 is disposed in the terminal interface 131, and the second power supply terminal 132 and the terminal interface 131 are designed so that the battery pack 100 of the present invention can be plugged onto an electric tool to supply power to the electric tool. Specifically, when a tool is assembled with the battery pack 100 through the slide 1102, the terminal interface 131 is connected with the tool to provide power to the tool. In addition, in this embodiment, a limiting member 111 is installed on the upper housing 11, and the limiting member 111 is installed on a side of the upper housing 11 away from the terminal interface 131, and is used for locking when the battery pack 10 is connected with a tool, so as to prevent the battery pack 100 from falling off the tool.

As shown in fig. 5 to 7, in particular, the limiting member 111 includes a limiting pressing portion 1111 and a limiting post 1112, and the limiting pressing portion 1111 is used for an operator to operate to release the lock between the battery pack 100 and the power tool; the position-limiting post 1112 is used for realizing a fixed connection between the position-limiting member 111 and an external tool. In addition, in this embodiment, spring mounting posts 1113 and a guide sleeve 1114 are disposed at two ends of the bottom of the limiting member 111, a limiting spring is mounted on the spring mounting posts 1113, the bottom end of the limiting spring abuts against the limiting member mounting groove 112 of the upper housing 11 for resetting the limiting member 111, and the guide sleeve 1114 is sleeved on the guide posts 1116 in the limiting member mounting groove 112 to play a role of guiding in the process of pressing down and lifting up the limiting member 11.

As shown in fig. 8, in this embodiment, the battery pack case 10 is provided with a socket 113, the battery pack 100 further includes a Type-C interface installed in the battery pack case 10 and partially located at the socket 113, and the Type-C interface is electrically connected to the circuit board 13 to realize electrical connection between the battery cell and the Type-C interface, so as to facilitate the Type-C interface to realize power output/input of the battery core assembly 120.

As shown in fig. 1 to 11, in the present embodiment, the first Type-C interface 122a and the second Type-C interface 122b are located on the same side or both sides of the battery pack case 10, when the first Type-C interface 122a and the second Type-C interface 122b are located on both sides of the battery pack case 10, the first Type-C interface and the second Type-C interface are preferably arranged symmetrically or asymmetrically, the preferred Type-C interfaces are disposed approximately flush with the circuit board in the height direction, and the distance L1 between the two Type-C interfaces ranges from 0 to 140mm. In this embodiment, preferably, the first Type-C interface 122a and the second Type-C interface 122b are substantially flush with the second circuit board 13 in the height direction, and when the battery pack is used on a tool, the 2 Type-C interfaces may also discharge electricity to the peripheral devices at the same time, and may also individually supply power to the peripheral devices through the 2 Type-C interfaces. As shown in fig. 12, the distance L2 between the two Type-C interfaces ranges from 0 to 160mm when located on the same side of the battery can body.

As shown in fig. 13 and 14, in some embodiments, the first Type-C interface 122a and the second Type-C interface 122b are located on two sides or the same side of the insertion portion 1101, and specifically, the first Type-C interface 122a and the second Type-C interface 122b are located at the sliding rail 1102, so that when the battery pack is used on a tool, the first Type-C interface 122a and the second Type-C interface 122b are completely covered, and thus, a foreign object generated when the tool is used can be prevented from entering the battery pack 100.

Also, as shown in fig. 15, in some embodiments, the first Type-C interface 122a and the second Type-C interface 122b are located at the terminal interface 131 and are arranged in a longitudinal direction, so that when the battery pack is used on a tool, the first Type-C interface 122a and the second Type-C interface 122b are completely covered, so that a foreign material generated when the tool is used can be prevented from entering the battery pack 100. The height L3 of the top surface of the battery pack to the bottom surface of the guide rail is 0-30mm, preferably 11.85mm, and two types-C are distributed between the top surface and the bottom surface of the guide rail.

Also, as shown in fig. 16 and 17, in some embodiments, the first Type-C interface 122a and the second Type-C interface 122b are located on the top surface of the insertion part 1102 and are arranged side by side, so that when the battery pack is used on the tool, the first Type-C interface 122a and the second Type-C interface 122b are completely shielded, thereby preventing foreign materials generated during the use of the tool from entering the battery pack, or one Type-C interface is located on the top surface and the other Type-C interface is located on the side surface.

As shown in fig. 1 to 10, in this embodiment, the second circuit board 13 is integrated with the second power supply terminal 132, a first power supply system and a second power supply system, the first power supply system is connected to the second power supply terminal 132, and the second power supply system is connected to the first Type-C interface 122a and/or the second Type-C interface 122b, so as to form a first power supply circuit and a second power supply circuit in the battery pack 100.

As shown in fig. 1 to 10, in this embodiment, the charger includes a charger housing 21, a first charging interface and a first power supply terminal 23, the first charging interface and the first power supply terminal 23 are located on two different sides of the charger housing 21, preferably on two opposite sides of the charger housing 21, a first circuit board is installed in the charger housing 21, one end of the first charging interface is electrically connected to the first circuit board, the other end of the first charging interface is located in a through hole on a side surface of the charger housing 21 to connect to the battery pack 100 through a charging wire, the first power supply terminal 23 is electrically connected to the first circuit board, the first power supply terminal 23 is used for connecting to an external power supply, and in this embodiment, the first charging interface is a third Type-C interface 22.

As shown in fig. 18 and 19, an AC-DC module 1002, a control and protocol module 1004, and a DC-DC module 1003 are integrated on the first circuit board, the AC-DC module 1002 is connected to the DC-DC module 1003, the DC-DC module 1003 is connected to the first charging interface, and the control and protocol module 1004 is connected to the DC-DC module 1003 and the first charging interface, respectively. The first charging interface comprises a plurality of Type-C interfaces, each Type-C interface is connected with a DC-DC module 1003, the control and protocol module 1004 is respectively connected with each DC-DC module 1003 and each Type-C interface, and the AC-DC module 1002 is used for converting alternating current into direct current; the DC-DC module 1003 is used for giving a proper charging voltage according to the control signal; the control and protocol module 1004 is used for controlling the whole charging system, analyzing the protocol of each Type-C port and controlling charging, and the first charging interface is connected with the second charging interface on the battery pack to charge the battery pack.

Specifically, as shown in fig. 1 and 18, in this embodiment, when a third Type-C interface 22 is disposed on the charger housing 21, the battery pack is connected to the third Type-C interfaces 22 of the two chargers through the first Type-C interface 122a and the second Type-C interface 122b, respectively. In this embodiment, when two interfaces, namely a third Type-C interface 22a and a third Type-C interface 22b, are provided on the charger housing 21, the battery pack 100 is connected to the third Type-C interface 22a and the third Type-C interface 22b on the same charger through the first Type-C interface 122a and the second Type-C interface 122b, respectively. In some other embodiments, the charger 20 may also charge different battery packs through different first charging interfaces.

Referring to fig. 20, an embodiment of the present invention discloses a charging control system, which is applied to a battery pack that is charged by a plurality of Type-C interfaces 122, the charging control system is used to detect the device Type of the access device on each Type-C interface, and if the charging control system is a charging device, the battery pack is charged.

It should be understood that a plurality of battery cells are included in the battery pack 100 for storing electric energy, and after the battery cells are combined with each other, the battery cells can be charged through each Type-C interface.

It should be understood that the Type-C interface is a USB standard interface, and the Type of the USB standard interface is a double-sided Type that can accommodate a positive plug and a negative plug, and supports a USB PD rapid charging protocol (USB Power Delivery Specification). In this embodiment, the Type-C interface pin includes VBUS, CC, D +, D-, GND.

Correspondingly, the Type-C interface is also arranged on the access equipment, and the interaction between the access equipment and the battery pack meets the Type-C general communication protocol or the proprietary communication protocol. Wherein, when the access device is a charging device, the access device can be a gallium nitride charger.

Referring to fig. 21, the battery pack in this embodiment may further include a power supply terminal 132, and the charging control system is further configured to detect a device Type of an access device on the power supply terminal, and charge the battery pack 100 if the device Type of each Type-C interface and/or the access device on the power supply terminal is a charging device.

It should be understood that the power supply terminal 132 is a conventional provision of a battery pack, and its pins in this embodiment include: p +, CHG, COM, P-, wherein P + and P-are used for discharging, CHG is used for charging, COM is used for communicating with external equipment.

It should be noted that, this embodiment includes two Type-C interfaces and a power supply terminal, and a plurality of Type-C interfaces can be set up as required in practical application, and through adjusting the power of charging or discharging, the speed of charging and discharging can be accelerated, and convenience is provided for users to use.

Referring to fig. 22, the charging control system includes: a detection module 170, a control module 180 and a plurality of voltage regulation modules 160.

The detection module 170 is configured to obtain a battery parameter of a battery core of the battery pack 100 and a loop parameter of a Type-C loop in real time;

it should be understood that the Type-C loop is a related circuit from the Type-C interface to the electric core inside the battery pack, and the Type-C loop in this embodiment includes the Type-C interface 122, the detection module 170, the control module 180, each voltage regulation module 160, and the electric core.

The control module 180 is used for judging the equipment Type of the access equipment according to the interface signal of each Type-C interface; and is also used for outputting control signals to each voltage regulating module 160 according to the battery parameters and the loop parameters; the battery parameters comprise voltage, current and temperature of the battery core; the loop parameters include loop voltage, loop current, power device temperature, and input/output voltage.

The plurality of voltage regulating modules 160 are in one-to-one correspondence with the Type-C interfaces 122, each voltage regulating module 160 is connected in series between the battery cell and the corresponding Type-C interface 122, and the control end of each voltage regulating module 122 is electrically connected with the control module 180 respectively, and is used for adjusting the input voltage of the battery cell according to the control signal of the control module 180.

Referring to fig. 23, optionally, the control module 180 includes: a first control unit 1801 and a second control unit 1802.

The first control unit 1801 is configured to obtain a battery pack state according to the battery parameter, and transmit the battery pack state to the second control unit 1802;

the second control unit 1802 is configured to determine a device Type of the access device according to an interface signal of each Type-C interface 122; and also for outputting control signals to each voltage regulation module 160 based on the battery pack status and the loop parameters.

It should be understood that, in the charging process of the battery pack 100, the parameter range of the battery core may be preset according to the use requirement, and the state of the battery pack may be determined according to the parameter range, where the state of the battery pack in this embodiment includes abnormal state, normal state, charge protection, and discharge protection, and in practical application, a user may further subdivide the battery pack according to the requirement.

Referring to fig. 21, the first control unit 1801 is communicatively connected to the second control unit 1802 for performing real-time data interaction, wherein the interaction may be an I2C or UART communication. In order to improve communication efficiency and interference rejection capability, in this embodiment, 4 groups of I/O ports are selected from the plurality of I/O ports of the first control unit 1801 and the second control unit 1802 to implement data interaction

The first control unit 1801 obtains a battery pack state according to the battery parameters, and transmits the battery pack state to the second control unit 1802 through the high and low levels of the pins, and the second control unit 1802 charges/discharges the battery pack through the Type-C interface according to the battery pack state. Wherein, the corresponding parameter of the battery pack state is recorded as OVP.

The second control unit 1802 performs matching of a common protocol with the access device on the Type-C interface 122, determines whether the access device is a charging device or a discharging device, and transmits the common protocol to the first control unit 1801 through the high and low levels of the pins.

It should be noted that the above communication protocol is still applicable to multiple Type-C interfaces, any Type-C interface is connected with an access device with a Type-C interface, and after the communication handshake with the second control unit 1802 is successful, the second control unit 1802 can perform data interaction with the first control unit 1801.

By adopting the scheme, the control system detects the battery parameters and the loop parameters in real time in the charging/discharging process, executes the charging/discharging protection logic according to the battery parameters and the loop parameters, and dynamically adjusts the input/output power, thereby realizing the safe and rapid charging/discharging function of the battery pack.

Referring to fig. 23 and fig. 24, optionally, each voltage regulating module 160 includes: a full-bridge drive unit 1601 and a full-bridge power unit 1602.

A full-bridge driving unit 1601 for outputting a driving signal to the full-bridge power unit 1602 according to a control signal of the second control unit 1802;

and the full-bridge power unit 1602 is connected in series between the Type-C interface 122 and the battery cell, and a control end of the full-bridge power unit is connected with the full-bridge driving unit 1601, and is used for adjusting the input voltage of the battery cell according to the driving signal.

Optionally, the detection module 170 includes: a first detection unit 1701 and a second detection unit 1701.

A first detection unit 1701 for acquiring a battery parameter in real time and transmitting the battery parameter to the first control unit 1801;

the second detection unit 1702 is configured to obtain the loop parameters in real time and transmit the loop parameters to the second control unit 1802.

Further, the charging control system further includes:

an activation unit 110 for activating the first control unit 1801 according to the activation signal; the activation signal is obtained by connecting states of various Type-C interfaces and/or pressing any one or more activation keys; it should be understood that the battery pack is provided with an activation button for controlling the power supply circuit to be switched on and off, and the activation button can generate an activation signal for pulling up or pulling down after being pressed.

The first control unit 1801 is further configured to detect a battery pack status after being activated, and activate the second control unit 1802 if the battery pack status is not abnormal.

With this arrangement, the battery pack 100 is in a sleep state when there is no activation signal, and both the first control unit 1801 and the second control unit 1802 are powered down; when receiving the activation signal, the first control unit 1801 first detects the battery pack state, and if the battery pack state is not abnormal, the second control unit 1802 is activated, otherwise, the charging process is stopped, which not only saves electric energy, but also prevents the electric core from being damaged.

In addition, after the battery pack 100 is charged, the first control unit 1801 may further output a control signal to the second control unit 1802 to power down, and the first control unit 1801 may power down after a certain time delay, thereby saving power.

Continuing, the charging control system further includes: the Type-C communication unit 192 is connected in series between the second control unit 1802 and each Type-C interface 122, and the second control unit 1802 can be in communication connection with the access device on each Type-C interface 122 through the Type-C communication unit 192, so as to obtain an interface signal through each Type-C interface, where the interface signal includes a device Type of the access device, a charging request, and a charging voltage.

Continuing, the charging control system further includes: the plurality of Type-C protection units 152 are in one-to-one correspondence with the voltage regulation modules 160 and the Type-C interfaces 122, are connected in series between the corresponding full-bridge power unit 1602 and the Type-C interfaces 122, and have control ends connected to the second control unit 1802, and are configured to perform charging protection according to a protection instruction of the second control unit 1802.

The second control unit 1802 is further configured to output a protection instruction to each Type-C protection unit 152 according to the battery pack state and the loop parameter.

Referring to fig. 24, when the battery pack further includes a power supply terminal 132, the charging control system further includes:

and a terminal communication unit 191 connected in series between the power supply terminal 132 and the first control unit 1801, for communicatively connecting the first control unit 1801 and the access device on the power supply terminal 132.

The terminal protection unit 151 is connected in series between the power supply terminal 132 and the electric core, and a control end of the terminal protection unit 151 is connected to the first control unit 1801, and is configured to perform charging protection according to a protection instruction of the first control unit 1801, and the first control unit 1801 is further configured to output a protection instruction to the terminal protection unit 151 according to a battery parameter.

It should be noted that, when the battery pack further includes the power supply terminal 132, the activation signal received by the activation unit 110 is further obtained by any one or more of a connection state through each Type-C interface 122, a connection state of the power supply terminal 132, or pressing of an activation key.

The second control unit 1802 is further configured to transmit the device Type of the access device on each Type-C interface to the first control unit 1801;

the first control unit 1801 is further configured to determine a device type of the access device according to the interface signal of the power supply terminal 132;

after receiving the device Type of the device connected to the Type-C interface 122 or the power supply terminal 132, if the device is a charging device, the first control unit 1802 determines whether to receive a charging request sent by the charging device, if the device is a charging device, determines whether the battery pack needs to be charged according to the state of the battery pack, and if the device is a charging device, charges the battery pack.

It should be noted that, when there is an access device on the power supply terminal 132 and the Type-C interface 122 does not detect the access device, the first control unit 1801 further outputs a control signal to the second control unit 1802, so that the second control unit 1802 sleeps to save power; when the first control unit receives the activation signal again and the battery pack state is not abnormal, the second control unit is activated again.

It can be seen that the charging control system in the above embodiment is applied to a battery pack that is charged by using a plurality of Type-C interfaces and/or power supply terminals, supports a USB PD rapid charging protocol, can detect the device types of access devices on the plurality of Type-C interfaces and/or power supply terminals in real time, and rapidly charges the battery pack according to the device types, and the charging power can be adjusted in a certain range according to the access devices, so that the charging control system is suitable for access devices of various voltages, and is convenient for users to use; in the charging process, the technical parameters of the battery pack are detected in real time, the charging protection logic is executed according to the technical parameters, the input power is dynamically adjusted, the safety of the battery pack can be effectively protected, and the service life of the battery pack is prolonged.

Referring to fig. 25 to 27, another embodiment of the present invention discloses a charging control method for a battery pack using a plurality of Type-C interfaces for charging, the charging control method comprising:

and detecting the equipment Type of the access equipment on each Type-C interface, and if the equipment Type is charging equipment, charging the battery pack.

Optionally, the charge control method further includes:

after receiving the activation signal, activating the charging control system;

detecting the state of the battery pack, and if the state of the battery pack is not abnormal, judging whether access equipment exists on each Type-C interface or not; the battery pack state is obtained by judging battery parameters in real time, wherein the battery parameters comprise voltage, current and temperature of the battery core.

By adopting the scheme, the battery pack is in a dormant state when no activation signal exists, and the charging or discharging process is started only after the activation signal is received and the battery pack is in an abnormal state, so that the electric energy is saved, and the damage to the battery core can be prevented.

And if the access equipment is detected, performing communication handshake with the access equipment.

Referring to fig. 25 to 27, the step of detecting the device Type of the access device on the Type-C interface includes:

and performing communication handshake with the access equipment, judging the type of the communication handshake if the handshake is successful, and if the type of the communication handshake is charging handshake, determining the access equipment as charging equipment.

In addition, if the battery pack is a charging device, the step of charging the battery pack includes:

if the battery pack is the charging device, judging whether a charging request sent by the charging device is received, if so, judging whether the battery pack needs to be charged according to the state of the battery pack, and if so, charging the battery pack and executing a charging protection logic; when a charging request is received, the state of the battery pack is detected, and charging is allowed when the battery pack is not abnormal, so that the damage of the battery cell caused by over-charging or under-voltage is avoided, and the service life of the battery cell is prevented from being influenced.

Referring to fig. 25 and 27, the charge protection logic includes:

determining the charging voltage of the battery pack according to the interface signal of the Type-C interface;

charging the battery pack according to the charging voltage;

in the charging process, monitoring whether loop parameters are abnormal, if so, adjusting loop voltage and loop current, and if so, stopping charging; the loop parameters comprise loop voltage, loop current, power device temperature and input/output voltage;

and when the charge state of the battery cell is greater than the preset maximum charge value, finishing charging.

Optionally, the step of the charging protection logic further includes:

the charge protection logic further comprises:

monitoring the state of the battery pack in real time in the charging process; and if the state of the battery pack is abnormal, stopping charging.

It should be noted that, in practical applications, the parameter range may be set according to the usage requirement during the charging/discharging process, when the charging parameter or the discharging parameter exceeds the preset parameter range, it is considered as abnormal, the charging/discharging voltage and the charging/discharging current may be dynamically adjusted according to the preset logic, the number of times of adjustment may be one or more, the specific number of times may be set according to the requirement, and in this embodiment, the number of times is 5.

It should be understood that the maximum charge value and the minimum discharge value are preset values, and may be determined according to index parameters of the battery pack, and the index parameters generally include capacity, voltage, charge current, discharge voltage, and discharge current; in this embodiment, the maximum charge value is SOC =100%, the minimum discharge value is SOC =5%, and in practical application, the user can set the above values according to needs.

Continuing on, when the battery pack further includes a power supply terminal, the charge control method includes:

and detecting the equipment Type of the access equipment on the power supply terminal, and if the equipment Type of the access equipment on each Type-C interface and/or the power supply terminal is charging equipment, charging the battery pack.

It can be seen that the charging control method in the above embodiment is applied to a battery pack that is charged by using multiple Type-C interfaces and/or power supply terminals, supports a USB PD rapid charging protocol, can detect the device types of access devices on the multiple Type-C interfaces and/or power supply terminals in real time, and rapidly charges the battery pack according to the device types, and the charging power can be adjusted in a certain range according to the access devices, so that the charging control method is suitable for access devices of multiple different voltages, and is convenient for users to use; in the charging process, the technical parameters of the battery pack are detected in real time, the charging protection logic is executed according to the technical parameters, the input power is dynamically adjusted, the safety of the battery pack can be effectively protected, and the service life of the battery pack is prolonged.

Referring to fig. 28, another embodiment of the present invention discloses a charging system, including: the battery pack 100 and the charger 200 are detachably connected, the battery pack 100 can be charged through the charger 200, and the battery pack 100 and the charger 200 have the same structure as that described in the above embodiments;

the battery pack 100 includes: a plurality of Type-C interfaces 122, a charging control system and a cell assembly 120; the charging control system is connected in series between each Type-C interface 122 and the cell assembly 120, each Type-C interface 122 is detachably connected with an access device, the charging control system detects the device Type of the access device, and if the access device is a charging device, the battery pack 100 is charged;

charger 200 is equipped with at least one Type-C interface 22 on it, and charger 200's Type-C interface 22 matches with the Type-C interface 122 phase-match of battery package 100.

It should be understood that the two Type-C interfaces of the charger 200 and the battery pack 100 are male and female, which is convenient for the user to connect; in addition, the battery pack 100 and the charger 200 may further include a power supply terminal 132 and a plug-in sheet 23, the charger 200 may further charge the battery pack 100 through the plug-in sheet 23, and accordingly, the power supply terminal 132 and the plug-in sheet 23 electrically connected to each other are also matched male and female terminals.

The utility model provides a charging system, through set up two at least Type-C interfaces on the battery package and make the battery package can be for other consumer electronics products supply power outward, can also be through connecting two chargers in order to charge to the battery package to improve charging efficiency, and through set up two Type-C interfaces on the charger in order to realize that a charger can charge for a plurality of battery packages simultaneously, or utilize a charger to charge for same above-mentioned battery package, in order to improve charging efficiency.

The above description is only a preferred embodiment of the present application and an explanation of the technical principle applied, and it should be understood by those skilled in the art that the scope of the present application is not limited to the technical solution of the specific combination of the above technical features, and also covers other technical solutions formed by any combination of the above technical features or their equivalent features, for example, the technical solutions formed by mutually replacing the above technical features (but not limited to) having similar functions disclosed in the present application, without departing from the inventive concept.

Besides the technical features described in the specification, other technical features are known to those skilled in the art, and further description of the other technical features is omitted here in order to highlight the innovative features of the present invention.

Claims

1. A charger, comprising:

the charger comprises a charger shell, a first circuit board and a second circuit board, wherein the first circuit board is installed in the charger shell, a first charging interface and a first power supply terminal are arranged on the charger shell, and the first charging interface and the first power supply terminal are respectively electrically connected with the first circuit board;

the first circuit board is integrated with an AC-DC module, a control and protocol module and a DC-DC module, the AC-DC module is electrically connected with the DC-DC module, the DC-DC module is electrically connected with the first charging interface, the control and protocol module is electrically connected with the DC-DC module and the first charging interface respectively, and the first charging interface is a Type-C interface.

2. The charger according to claim 1, wherein the first charging interface comprises a plurality of Type-C interfaces, each Type-C interface is connected with a DC-DC module, and the control and protocol module is respectively connected with each DC-DC module and each Type-C interface.

3. An electrical charging system, comprising:

the charger comprises a charger shell, wherein a first circuit board is installed in the charger shell, a first charging interface and a first power supply terminal are arranged on the charger shell, and the first charging interface and the first power supply terminal are respectively and electrically connected with the first circuit board;

the plurality of second charging interfaces are arranged on the battery pack shell and are electrically connected with the second circuit board;

when the charger charges for the battery pack, the first charging interface is electrically connected with the second charging interface, and the first charging interface and the second charging interface are set to be Type-C interfaces.

4. The charging system according to claim 3, wherein the cell assembly comprises a plurality of cells, the cells are mounted in a cell holder, the cell holder is located in the battery can shell, and the cells are connected by electrode plates.

5. The charging system according to claim 3, wherein the second charging interface at least includes a first Type-C interface and a second Type-C interface, and the first Type-C interface and the second Type-C interface are respectively mounted on the circuit board and electrically connected to the circuit board.

6. The charging system of claim 5, wherein a plug-in part is disposed on a top of the battery pack housing, and sliding rails are disposed on two sides of the plug-in part.

7. The charging system of claim 6, wherein a terminal interface is mounted on the top of the battery pack housing, the terminal interface is located between the sliding rails, and the terminal interface is electrically connected to the circuit board.

8. A charging system in accordance with claim 6, wherein said first Type-C interface and said second Type-C interface are located on either side of said socket or on the same side.

9. A charging system in accordance with claim 6, wherein said first Type-C interface and said second Type-C interface are located on a top surface of said socket.

10. The charging system according to claim 5, wherein the first Type-C interface and the second Type-C interface are located on the same side or on both sides of the battery pack housing.

11. The charging system according to claim 3, wherein when the first charging interface comprises a Type-C interface, the battery pack is connected to the first charging interfaces of the two chargers respectively through a plurality of second charging interfaces.

12. The charging system according to claim 3, wherein when the first charging interface comprises two Type-C interfaces, the battery pack is respectively connected with two first charging interfaces of the same charger through a plurality of second charging interfaces, or different battery packs are charged through different first charging interfaces on the charger.