CN114448009A - Battery pack, electric tool system and system - Google Patents

Battery pack, electric tool system and system Download PDF

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Publication number
CN114448009A
CN114448009A CN202110594839.2A CN202110594839A CN114448009A CN 114448009 A CN114448009 A CN 114448009A CN 202110594839 A CN202110594839 A CN 202110594839A CN 114448009 A CN114448009 A CN 114448009A
Authority
CN
China
Prior art keywords
battery pack
type
circuit board
battery
power supply
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN202110594839.2A
Other languages
Chinese (zh)
Inventor
刘传君
罗明
李保安
庄宪
严安
霍晓辉
李志远
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Globe Jiangsu Co Ltd
Original Assignee
Globe Jiangsu Co Ltd
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
Publication date
Priority claimed from CN202011228201.9A external-priority patent/CN112259866A/en
Application filed by Globe Jiangsu Co Ltd filed Critical Globe Jiangsu Co Ltd
Priority to EP22810250.5A priority Critical patent/EP4350866A1/en
Priority to CA3220576A priority patent/CA3220576A1/en
Priority to PCT/CN2022/087124 priority patent/WO2022247517A1/en
Priority to AU2022282142A priority patent/AU2022282142A1/en
Publication of CN114448009A publication Critical patent/CN114448009A/en
Priority to US18/519,071 priority patent/US20240088506A1/en
Pending legal-status Critical Current

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    • 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
    • H02J7/00036—Charger exchanging data with battery
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/4285—Testing apparatus
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44—Methods for charging or discharging
    • H01M10/446—Initial charging measures
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44—Methods for charging or discharging
    • H01M10/448—End of discharge regulating measures
    • 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
    • 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
    • H02J7/0031—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect 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
    • H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
    • 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
    • H02J7/0069—Charging or discharging for charge maintenance, battery initiation or rejuvenation
    • 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
    • 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
    • H02J7/007182—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery voltage
    • 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
    • H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (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)
  • Battery Mounting, Suspending (AREA)
  • Secondary Cells (AREA)

Abstract

The invention discloses a battery pack, an electric tool system and a system, wherein the battery pack comprises: the battery pack comprises a battery pack shell, a battery pack body and a battery pack, wherein the battery pack shell is internally provided with an electric core assembly and a circuit board, and the circuit board is electrically connected with the electric core assembly; a plurality of Type-C interfaces are located the both sides of battery package casing, its one end is installed on the circuit board, and with circuit board electric connection to realize the electric connection between electric core subassembly and the Type-C interface, the other end outwards extends in the grafting mouth on the battery package casing, in order to connect external equipment. The invention provides possibility for power supply of electric tools and power supply of electronic products such as mobile phones, notebooks, digital cameras and the like, and simultaneously, a plurality of chargers can be connected to charge the battery pack so as to improve charging efficiency.

Description

Battery pack, electric tool system and system
Technical Field
The invention relates to the technical field of battery charging, in particular to a battery pack, an electric tool system and a system.
Background
In recent years, with the development of battery material technology, the application range of the battery core has been greatly improved. Electric tool products on the market are used in a large amount at present, but the battery pack at present can only supply power to 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. The conventional charger can only charge a single battery pack and 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 after using up the electric tool each time. 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.
Disclosure of Invention
The invention aims to provide a battery pack, an electric tool system and a system, wherein the battery pack can supply power to electric tools and garden tools and also can supply power to electronic products such as mobile phones, notebooks, digital cameras and the like, and the battery pack is provided with a plurality of Type-C interfaces, so that power can be supplied to a plurality of products simultaneously, and a plurality of chargers can be used for charging the products simultaneously during charging.
The invention provides a battery pack, comprising:
the battery pack comprises a battery pack shell, a battery pack body and a battery pack, wherein the battery pack shell is internally provided with a battery core assembly and a circuit board, and the circuit board is electrically connected with the battery core assembly;
a plurality of Type-C interfaces are located on the battery pack shell, one end of the battery pack shell is installed on the circuit board and is electrically connected with the circuit board to realize the electrical connection between the electric core assembly and the Type-C interface, and the other end of the battery pack shell extends outwards to the inside of the plug socket on the battery pack shell to connect external equipment.
In one embodiment of the invention, the Type-C interfaces are arranged on two opposite sides of the battery pack shell, and the Type-C interfaces are provided with pins fixedly welded with the circuit board.
In an embodiment of the present invention, a limiting member mounting groove is formed in the upper case of the battery pack case, and a limiting member is mounted in the limiting member mounting groove and sealed by a mounting groove cover.
In an embodiment of the invention, the limiting member includes a limiting pressing portion and a limiting post, when the battery pack is connected to the external device, the limiting post is used for realizing fixed connection between the battery pack and the external device, and the limiting pressing portion is used for an operator to operate so as to unlock and separate the battery pack from the external device.
In an embodiment of the present invention, a display device is further disposed on the battery pack case, and the display device is configured to display the remaining capacity and/or voltage and/or current and/or cell temperature and/or fault of the battery pack.
In an embodiment of the invention, the display device is fixed on the upper casing of the battery pack casing and located beside the limiting member, and the display device is an LCD display screen.
In one embodiment of the invention, the battery core assembly comprises a plurality of battery cores, the battery cores are mounted in a battery core bracket, the battery core bracket is positioned in the battery shell body, and the battery cores are connected through electrode plates.
In an embodiment of the invention, the battery pack further includes a power supply terminal mounted on the circuit board and electrically connected to the circuit board.
In an embodiment of the present invention, the power supply terminal, a first power supply system, and a second power supply system are integrated on the circuit board, the first power supply system is connected to the power supply terminal, and the second power supply system is connected to the Type-C interface, so as to form a first power supply circuit and a second power supply circuit in the battery pack.
In an embodiment of the present invention, the first power supply circuit includes a main control unit, a detection unit connected to the main control unit, a third charge/discharge protection unit, a COM communication processing unit, and a power supply terminal connected to the third charge/discharge protection unit and the COM communication processing unit, and when the battery pack is charged/discharged by using the first power supply circuit, the detection unit detects voltages of all battery cells in the battery cell assembly, a current of the entire charge/discharge loop, and a temperature of the battery cell, and transmits detected data to the main control unit, so that the main control unit calculates a current charge amount of the battery cell assembly; the third charging and discharging protection unit receives a protection instruction from the main control unit and completes the charging and discharging protection action of the battery pack loop; and the COM communication processing unit processes communication between external COM communication and the main control unit.
In an embodiment of the present invention, the second power supply circuit includes a main control unit, an auxiliary control unit connected to the main control unit, and a full-bridge driving unit connected to the auxiliary control unit, and when the battery pack is charged/discharged by using the second power supply circuit, the auxiliary control unit sends a control signal to the full-bridge driving unit, so that the full-bridge driving unit provides a charge/discharge voltage.
The invention also provides an electric tool system which comprises a battery pack and an electric tool, wherein the electric tool comprises a functional module for executing corresponding functions and a plurality of tool Type-C interfaces;
the battery pack includes: the battery pack shell is internally provided with an electric core assembly and a circuit board, the circuit board is electrically connected with the electric core assembly, one end of each battery pack Type-C interface is arranged on the circuit board and is electrically connected with the circuit board so as to realize the electrical connection between the electric core assembly and the plurality of battery pack Type-C interfaces, and the other end of each battery pack Type-C interface extends outwards to a plug-in port on the battery pack shell so as to be connected with external equipment;
when the battery pack is connected with the electric tool, the plurality of battery pack Type-C interfaces are connected with the plurality of tool Type-C interfaces, and the battery pack outputs energy to the electric tool to drive the functional module to work.
In one embodiment of the invention, the electric tool is one of a lawnmower, a pruner, a blower, a chain saw, a lawnmower, a washer, a vacuum cleaner, an electric drill, an electric hammer, a riding mower, an intelligent lawnmower, and an intelligent cleaning device.
The invention also provides a system, comprising a first electric tool, a second electric tool and a control device, wherein the first electric tool is provided with a first rated voltage and is provided with a plurality of first tool Type-C interfaces;
a second power tool having a second rated voltage, the second power tool having a plurality of second tool Type-C interfaces disposed thereon;
the battery pack comprises a shell, wherein an electric core assembly and a circuit board are installed in the shell, and the circuit board is electrically connected with the electric core assembly;
one end of each battery pack type-C interface is arranged on the circuit board and is electrically connected with the circuit board so as to realize the electrical connection between the battery pack assembly and the battery pack type-C interface, and the other end of each battery pack type-C interface extends outwards to the battery pack shell;
when the battery pack is mounted to the first electric tool, the plurality of battery pack type-c interfaces are connected with the plurality of first tool type-c interfaces, and the battery pack outputs energy to the first electric tool;
when the battery pack is mounted to the second electric tool, the plurality of battery pack type-c interfaces are connected to the plurality of second tool type-c interfaces, and the battery pack outputs energy to the second electric tool.
In one embodiment of the invention, the first voltage rating of the first power tool is different from the second voltage rating of the second power tool.
According to the battery pack, the plurality of Type-C interfaces are arranged on the battery pack shell, so that the electric connection between the electric core assembly and the Type-C interfaces can be realized by utilizing the electric connection between the Type-C interfaces and the circuit board, power can be supplied to a plurality of different electric tools at the same time, the product applicability is improved, the possibility of supplying power to electronic products such as mobile phones, notebooks and digital cameras is provided, and meanwhile, the battery pack can be charged by connecting a plurality of chargers, so that the charging efficiency is improved.
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 the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a battery pack according to the present invention.
Fig. 2 is a schematic structural diagram of a circuit board in a battery pack according to the present invention.
Fig. 3 is a schematic structural diagram of an upper-middle case of a battery pack according to the present invention.
Fig. 4 is a schematic structural view of a middle lower case of a battery pack according to the present invention.
Fig. 5 is a schematic structural view of a middle electric core assembly of a battery pack according to the present invention.
Fig. 6 is a schematic structural diagram of a Type-C interface in a battery pack according to the present invention.
Fig. 7 is a schematic structural diagram of a middle limiting member and an installation slot cover of a battery pack according to the present invention.
Fig. 8 is a schematic structural diagram of a middle stopper of a battery pack according to the present invention.
Fig. 9 is a schematic bottom view of a middle stopper of a battery pack according to the present invention.
Fig. 10 is a schematic circuit diagram of a battery pack according to the present invention.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope 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 present invention, and the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, and the type, quantity and proportion of the components in actual implementation may be changed freely, and the layout of the components may be more complicated.
As shown in fig. 1 to 10, the present invention discloses a battery pack 100 for supplying power to a power tool and an electronic device. The battery pack 100 comprises a battery pack shell 10, a plurality of Type-C interfaces and a power supply terminal, specifically, the battery pack 100 further comprises a battery cell assembly 120 and a circuit board 13 which are accommodated in the battery pack shell 10, the battery cell assembly 120 comprises a plurality of battery cells, the battery cells are mounted in a battery cell support 14, the battery cell support 14 is located in the battery pack shell 10, the battery cells are connected through electrode plates 141, and the battery cells are electrically connected with the circuit board 13.
As shown in fig. 1 and 2, the power supply terminal 132 is mounted on the circuit board 13 and electrically connected to the circuit board 13, and the power supply terminal 132 is close to the terminal interface 131 at the top of the battery pack case 10 and partially exposed to the terminal interface for connecting to an external power tool. The output voltage of the battery pack 100 is 24V, the output current is 40A, and the output power is 960W, but not limited thereto. In this embodiment, the battery pack is applied to an electric tool system including the battery pack and the electric tool in the above embodiments, the electric tool includes a function module that performs a corresponding function and a plurality of tool Type-C interfaces, when the battery pack 100 is connected to the electric tool, the Type-C interfaces on the plurality of battery packs are connected to the plurality of tool Type-C interfaces, and the battery pack outputs energy to the electric tool to drive the function module to operate. Such power tools include, but are not limited to, lawn mowers, hair dryers, pruners, chain saws, lawn mowers, washers, cleaners, smart mowers, smart cleaning devices, and riding mowers.
As shown in fig. 3 and 4, in the present embodiment, 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 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 power supply terminal 132 is electrically connected to the external electric tool. The upper housing 11 of the battery pack housing 10 is provided with a limiting member mounting groove 112, a limiting member 111 is mounted in the limiting member mounting groove 112, and is 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 plugged in or pulled out.
As shown in fig. 3 and 4, 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 implement electrical connection between the battery cell and the Type-C interface, so as to facilitate implementation of power output/input of the battery core assembly 120 by using the Type-C interface.
As shown in fig. 1 and 5, in the present embodiment, the battery pack case 10 is substantially rectangular, the Type-C interface is provided on the long side of the battery pack case 10, and the stopper 111 is provided near the short side of the upper case 11. In this embodiment, all be provided with on the relative both sides long edge that sets up of battery package casing 10 Type-C interface, Type-C interface includes: the first Type-C interface 122a and the second Type-C interface 122b, of course, in other embodiments, the first Type-C interface 122a and the second Type-C interface 122b may also be disposed at other positions, for example, at two sides or the same side of the insertion part 1101, or at the terminal interface 131, and are arranged in a longitudinal direction; or the top surfaces of the insertion parts 1102 are arranged in parallel, as long as power transmission can be achieved, the limitation is not limited herein, and when the battery pack 100 is used on a tool, the first Type-C interface 122a and the second Type-C interface 122b are completely shielded, so that foreign matters generated when the tool is used can be prevented from entering the battery pack. Correspondingly, the two insertion ports 113 are formed on the two long edges of the battery pack shell 10, specifically, on the two long edges of the upper shell 11; the socket 113 is oriented perpendicular to the two long sides.
As shown in fig. 1 to 5, the Type-C interface is an electrical connector capable of realizing charging and discharging, and the output voltage of the Type-C interface is 5 to 20V, preferably 5V, 9V, 12V, 15V, 20V; the output current is 1-5A, preferably 1A, 2A, 3A, 4A, 5A; the output power is 15-100W, preferably 15W, 18W, 30W, 45W, 60W, 100W.
As shown in fig. 6, in the present embodiment, the Type-C interface includes an insulating body 1221, a conductive terminal 1222 fixed on the insulating body 1221, and a mask housing 1223 covering the outside of the insulating body 1221 and the conductive terminal 1222, the conductive terminal 1222 and the mask housing 1223 are made of a metal material, the conductive terminal 1222 is in contact with an inner side wall of the mask housing 1223, so as to achieve electrical conduction between the conductive terminal 1222 and the mask housing 1223, and the mask housing 1223 is provided with a pin 1224 fixed to the circuit board 13 by welding. Through such design, the conductive terminal 1222 of the Type-C interface can be electrically connected with the battery cell through the pin 1224 of the mask housing 1223 and the circuit board 13, and then can charge electronic devices of electronic products such as mobile phones, notebooks, digital cameras and wearable smart devices through the Type-C interface.
As shown in fig. 1 to 6, in the present embodiment, the Type-C interface is disposed in parallel with the circuit board 13, and the parallel disposition includes a case where the Type-C interface is fixed on the upper side of the circuit board 13 and a case where the Type-C interface is fixed on the lower side of the circuit board 13, and since the Type-C interface is directly soldered to the circuit board 13, a distance between an outer edge of the socket 113 and the circuit board 13 is smaller than a longitudinal length of the socket 113, specifically, a distance between the outer edge of the socket 113 and the circuit board 13 is 0 to 20mm, preferably 0 to 15mm, further preferably 0 to 10mm, and most preferably 7.75 mm.
As shown in fig. 1 to fig. 6, in the embodiment, a power supply terminal 132 is integrated on the circuit board 13, the power supply terminal 132 is also electrically connected to the battery cell through the circuit board 13, a terminal interface 131 is opened at one end of the upper casing 11 away from the limiting member 111, and the power supply terminal 132 is disposed close to the terminal interface 131 and partially exposed to the terminal interface 131. The extending direction of the power supply terminal 132 and the orientation of the terminal interface 131 are parallel to both long sides. The design of the power supply terminal 31 and the terminal interface 131 enables the battery pack 100 of the present invention to be plugged into a power tool to supply power to the power tool.
As shown in fig. 1 to fig. 6, in this embodiment, a display device 1115 is further disposed on the battery pack case 10, and the display device 1115 may be used to display the remaining power of the battery pack 100, and may also be used to display the voltage, the current, the cell temperature, the fault, and the like of the battery pack 100. The display device may also display operating parameters of the power tool, such as the rotational speed of the motor, etc., when the battery pack 100 is coupled to and operated by the power tool. The display device is preferably an LCD display screen, but should not be limited thereto.
As shown in fig. 7 to 9, in the present embodiment, the display device 1115 is fixed on the upper housing 11 and located beside the limiting component 111. Specifically, 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 so as to release the lock between the battery pack 100 and the electric tool; the position-limiting post 1112 is used for realizing fixed connection between the battery pack 100 and an external device. In addition, in this embodiment, spring mounting post 1113 and uide bushing 1114 are provided with on the both ends of locating part 111 bottom, install spacing spring on the spring mounting post 1113, the bottom butt of spacing spring is used for making on the locating part mounting groove 112 of last casing 11 locating part 111 resets, uide bushing 1114 cover is established on the uide bushing on the locating part mounting groove 112 the locating part 11 pushes down and plays the effect of direction with the in-process that rises.
As shown in fig. 7 to 9, in the present embodiment, preferably, the display device 1115 is fixed on the upper housing 11 and located between the position-limiting pressing portion 1111 and the position-limiting post 1112, for the purpose of: when the battery pack 100 is combined with the electric tool, an operator can see the content displayed on the display device 1115 during the use process, and when an abnormality occurs during the operation process or during the working process of the battery pack 100 and/or the electric tool, the abnormality can be timely found and processed, so that the occurrence of danger is avoided.
Of course, the display device 1115 may be mounted on the front side of the battery pack 100, i.e., on the side of the limiting pressing portion 1111 away from the limiting post 1112. However, in such a mounting scheme, it is necessary to consider whether or not the lead wire between the display device 1115 and the circuit board 13 is interfered by the stopper pressing portion 1111, and the wiring is limited.
As shown in fig. 10, the present invention can also improve charging efficiency by connecting a plurality of chargers to charge the battery pack. The circuit board 13 is integrated with the power supply terminal 132, a first power supply system and a second power supply system, the first power supply system is connected with the power supply terminal 132, and the second power supply system is connected with the Type-C interface, so that a first power supply circuit and a second power supply circuit are formed in the battery pack. The first power supply circuit comprises a main control unit 1801, a detection unit connected with the main control unit 1801, a third charge and discharge protection unit, a COM communication processing unit 191 and power supply terminals connected with the third charge and discharge protection unit and the COM communication processing unit 191, wherein when the battery pack is charged/discharged by using the first power supply circuit, the detection unit detects voltages of all battery cores in the battery core assembly 120, currents of the whole charge/discharge loop and temperatures of the battery cores, and transmits detected data to the main control unit 1801, so that the main control unit 1801 calculates the current charge amount of the battery core assembly 120; the third charge and discharge protection unit receives a protection instruction from the main control unit 1801, and completes the charge and discharge protection action of the battery pack loop; the COM communication processing unit 191 processes communication between external COM communication and the main control unit 1801. The second power supply circuit comprises a main control unit 1801, an auxiliary control unit 1802 connected with the main control unit 1801 and a full-bridge driving unit 1601 connected with the auxiliary control unit 1802, and when the battery pack is charged/discharged by using the second power supply circuit, the auxiliary control unit 1802 sends a control signal to the full-bridge driving unit 1601 to enable the full-bridge driving unit 1601 to provide a charging/discharging voltage.
Specifically, as shown in fig. 10, in this embodiment, the circuit of the battery pack includes a battery assembly 120 (electric core), a main control unit 1801, an auxiliary control unit 1802 and a first detection unit 1701 connected to the main control unit 1801, and a COM communication processing unit 191, a first detection unit 1701 connected to the auxiliary control unit 1802, a full-bridge driving unit 1601 connected to the auxiliary control unit 1802, a second detection unit 17021702 and a Type-C communication processing unit 192, and a full-bridge power unit 1602 connected to the full-bridge driving unit 1601, where the full-bridge power unit includes a full-bridge power unit 1 (first full-bridge power unit) and a full-bridge power unit 2 (second full-bridge power unit), and a Type-C charging and discharging protection unit 152 connected to the full-bridge power unit 1 and the full-bridge power unit 2, respectively, and the Type-C charging and discharging protection unit 152 includes a Type-C charging and discharging protection unit 1 (second charging and discharging protection unit) and a Type-C charging and discharging protection unit 152 The protection unit 2 (third charging and discharging protection unit), the Type-C interface 1 (first Type-C interface 122a) and the Type-C interface 2 (second Type-C interface 122b) respectively connected with the Type-C charging and discharging protection unit 1 and the Type-C charging and discharging protection unit 2, the charging and discharging protection unit 151 (first charging and discharging protection unit) connected with the main control unit 1801, and the power supply terminal 132, wherein the power supply terminal 132 comprises four ports of P +, CHG, COM and P-, wherein P + and CHG are connected with the first charging and discharging protection unit and are connected with a positive electrode of the battery, the COM port is connected with the COM communication processing unit 191, and the P-port is connected with a negative electrode of the battery.
The first detection unit 1701 is used for detecting input/output voltage, loop current, power device temperature and the like of the Type-C loop, and the detection result is transmitted to the auxiliary control unit 1802; the second detecting unit 1702 is configured to detect a single-cell voltage in the battery pack 120, a charging/discharging current of the battery pack loop, a temperature of the battery pack 120, and the like, and transmit a detection result to the main control unit 1801; the main control unit 1801 is configured to receive data information of the second detection unit 1702 and exception alarm information of the secondary control unit 1802, and send a charging/discharging protection instruction, a secondary control unit 1802 protection instruction, and a secondary control unit 1802 power-off instruction after analysis; the auxiliary control unit 1802 is configured to receive data information of the first detection unit 1701 and a related instruction of the main control unit 1801, and after analysis, may issue a Type-C loop normal operation instruction, a Type-C loop charge and discharge protection instruction, and execute a power-off sleep operation; the full-bridge power unit and the full-bridge driving unit 1601 jointly form a voltage boosting and reducing module of a Type-C loop, the auxiliary control unit 1802 communicates with external equipment of a Type-C interface through CC signals to determine the input/output voltage of the current circuit, and after the input/output voltage is determined, the voltage regulating work is completed by the full-bridge driving unit 1601; the Type-C charging and discharging protection unit receives a protection instruction from the auxiliary control unit 1802 and completes the charging and discharging protection action of the Type-C loop; a charge and discharge protection unit: receiving a protection instruction from the main control unit 1801 to complete the charging and discharging protection action of the battery pack loop; the activation unit receives an activation signal from the outside, which includes a COM signal, a KEY signal (KEY), and a CC signal, completes a power-on operation for the main control unit 1801, and after the main control unit completes the power-on operation, the main control unit sends a power-on instruction to the auxiliary unit, and simultaneously switches the CC signal from the activation loop to a communication loop with the auxiliary control unit 1802, and the auxiliary control unit 1802 starts normal communication with the external device.
The battery pack can be activated through a KEY (KEY signal), once the battery pack is activated, the CC signal can be transferred to a communication signal between the auxiliary control unit and the charger through the activation signal, the CC signal 1 or the CC signal 2 can be detected when being accessed into a Type-C port, and the CC signal 1 and the CC signal 2 can enter a Type-C communication processing unit to realize the communication between the battery pack and the charger.
The battery pack is connected to the charger through Type-C, any path of CC signal can activate the battery pack, the main control starts to detect the battery state after completing power-on initialization, the main control starts a Type-C circuit except for abnormal conditions, and the value of OVP is set according to the battery pack state; then, auxiliary control self-calibration power-on is carried out, and whether equipment is accessed or not is judged according to CC signals of a Type-C port after the auxiliary control is powered on; when the auxiliary control judges that any Type-C port is accessed by the charging equipment, data interaction can be carried out between the main control and the auxiliary control, the auxiliary control tells the main control that a charger is accessed, and the main control unit 1801 executes a charging protection logic; in the whole charging process, the main control unit 1801 monitors the state of the battery in real time, and keeps communication with the auxiliary control unit 1802 to ensure that the charging process is in a controllable state; the charging protection of single port Type-C charging and double port Type-C port can be realized through the cooperation between the main control unit 1801 and the auxiliary control unit 1802.
The battery pack 100 of the present invention can supply power to a lawnmower, a blower, a pruner, a chain saw, a grass mower, a cleaner, a vacuum cleaner, an intelligent lawnmower, an intelligent cleaning apparatus, and a riding lawnmower through the first power supply system. When the battery pack 100 is applied to a grass trimmer, a blower, a pruner, a chain saw, a grass pusher, a cleaning machine, a dust collector, an intelligent mower, an intelligent cleaning device and a riding mower, the battery pack can supply power to the grass trimmer, the blower, the pruner, the chain saw, the grass pusher, the cleaning machine, the dust collector, the intelligent mower, the intelligent cleaning device and the riding mower, and can also supply power to electronic products such as a mobile phone, a notebook computer and a digital camera through a second power supply system.
The invention also provides a system, which comprises a first electric tool, a second electric tool and the battery pack in the embodiment, wherein the first electric tool has a first rated voltage, and a plurality of first tool Type-C interfaces are arranged on the first electric tool; the second electric tool is provided with a second rated voltage, and a plurality of second tool Type-C interfaces are arranged on the second electric tool; when the battery pack is mounted to the first electric tool, the Type-C interfaces on the plurality of battery packs are connected with the plurality of first tool Type-C interfaces, and the battery pack outputs energy to the first electric tool; when the battery pack is installed to a second electric tool, the Type-C interfaces on the battery packs are connected with the second tool Type-C interfaces, the battery pack outputs energy to the second electric tool, and the first rated voltage of the first electric tool is different from the second rated voltage of the second electric tool. In addition, the battery pack can also supply power to a mobile phone, a notebook computer, a wearable intelligent device and the like through a Type-C interface on the battery pack.
According to the battery pack, the plurality of Type-C interfaces are arranged on the battery pack shell, so that the electric connection between the electric core assembly 120 and the Type-C interfaces can be realized by utilizing the electric connection between the Type-C interfaces and the circuit board, the possibility of supplying power to electronic products such as mobile phones, notebooks and digital cameras is provided, and meanwhile, the battery pack can be charged by connecting a plurality of chargers, so that the charging efficiency is improved.
The above description is only a preferred embodiment of the present application and a description of the applied technical principle, 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 without departing from the inventive concept, 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.
Other technical features than those described in the specification are known to those skilled in the art, and are not described herein in detail in order to highlight the innovative features of the present invention.

Claims (15)

1. A battery pack, comprising:
the battery pack comprises a battery pack shell, a battery pack body and a battery pack, wherein the battery pack shell is internally provided with an electric core assembly and a circuit board, and the circuit board is electrically connected with the electric core assembly;
a plurality of Type-C interfaces are located on the battery package casing, its one end is installed on the circuit board, and with circuit board electric connection to realize the electric connection between electric core subassembly and the Type-C interface, the other end outwards extends to in the interface on the battery package casing, in order to connect external equipment.
2. The battery pack according to claim 1, wherein the Type-C interfaces are disposed on two opposite sides of the battery pack case, and the Type-C interfaces are provided with pins welded to the circuit board.
3. The battery pack according to claim 1, wherein the upper housing of the battery pack housing is provided with a retaining member mounting groove, and the retaining member mounting groove is provided with a retaining member therein and sealed by a mounting groove cover.
4. The battery pack according to claim 3, wherein the limiting member comprises a limiting pressing portion and a limiting post, when the battery pack is connected to the external device, the limiting post is used for realizing fixed connection between the battery pack and the external device, and the limiting pressing portion is used for being operated by an operator to unlock and separate the battery pack from the external device.
5. The battery pack of claim 3, wherein the battery pack housing is further provided with a display device, and the display device is used for displaying the remaining capacity and/or voltage and/or current and/or cell temperature and/or fault of the battery pack.
6. The battery pack according to claim 5, wherein the display device is fixed on the upper case of the battery pack case and located beside the position-limiting member, and the display device is an LCD display screen.
7. The battery pack of claim 1, wherein the battery pack assembly comprises a plurality of battery cells, the plurality of battery cells are mounted in a cell support, the cell support is located in the battery pack shell, and the battery cells are connected by electrode plates.
8. The battery pack of claim 1, further comprising a power supply terminal mounted on the circuit board and electrically connected to the circuit board.
9. The battery pack according to claim 9, wherein the power supply terminal, a first power supply system and a second power supply system are integrated on the circuit board, the first power supply system is connected to the power supply terminal, and the second power supply system is connected to the Type-C interface, so as to form a first power supply circuit and a second power supply circuit in the battery pack.
10. The battery pack according to claim 9, wherein the first power supply circuit comprises a main control unit, a detection unit connected to the main control unit, a third charge/discharge protection unit, a COM communication processing unit, and a power supply terminal connected to the third charge/discharge protection unit and the COM communication processing unit, and when the battery pack is charged/discharged by using the first power supply circuit, the detection unit detects voltages of all cells in the cell assembly, currents of the entire charge/discharge loop, and temperatures of the cells, and transmits detected data to the main control unit, so that the main control unit calculates a current charge amount of the cell assembly; the third charging and discharging protection unit receives a protection instruction from the main control unit and completes the charging and discharging protection action of the battery pack loop; and the COM communication processing unit processes communication between external COM communication and the main control unit.
11. The battery pack of claim 9, wherein the second power supply circuit comprises a main control unit, an auxiliary control unit connected to the main control unit, and a full-bridge driving unit connected to the auxiliary control unit, and when the battery pack is charged/discharged by using the second power supply circuit, the auxiliary control unit sends a control signal to the full-bridge driving unit to enable the full-bridge driving unit to provide a charging/discharging voltage.
12. A power tool system is characterized by comprising a battery pack and a power tool, wherein the power tool comprises a functional module for executing corresponding functions and a plurality of tool Type-C interfaces;
the battery pack includes: the battery pack shell is internally provided with an electric core assembly and a circuit board, the circuit board is electrically connected with the electric core assembly, one end of each battery pack Type-C interface is arranged on the circuit board and is electrically connected with the circuit board so as to realize the electrical connection between the electric core assembly and the plurality of battery pack Type-C interfaces, and the other end of each battery pack Type-C interface extends outwards to a plug-in port on the battery pack shell so as to be connected with external equipment;
when the battery package with when electric tool connects, a plurality of battery package Type-C interfaces with a plurality of instrument Type-C interface connection, the battery package to electric tool output energy, in order to drive function module work.
13. The power tool system of claim 12, wherein the power tool is one of a lawnmower, a pruner, a blower, a chainsaw, a lawnmower, a cleaner, a vacuum cleaner, an electric drill, an electric hammer, a riding mower, an intelligent lawn mower, and an intelligent cleaning device.
14. A system, comprising:
a first power tool having a first voltage rating, the first power tool having a plurality of first tool Type-C interfaces disposed thereon;
a second power tool having a second rated voltage, the second power tool having a plurality of second tool Type-C interfaces disposed thereon;
the battery pack comprises a shell, wherein an electric core assembly and a circuit board are installed in the shell, and the circuit board is electrically connected with the electric core assembly;
one end of each battery pack Type-C interface is mounted on the circuit board and electrically connected with the circuit board so as to realize the electrical connection between the electric core assembly and the battery pack Type-C interface, and the other end of each battery pack Type-C interface extends outwards to the battery pack shell;
when a battery pack is mounted to a first power tool, the plurality of battery pack Type-C interfaces are connected with the plurality of first tool Type-C interfaces, and the battery pack outputs energy to the first power tool;
when the battery package is installed to the second electric tool, a plurality of battery package Type-C interfaces with a plurality of second instrument Type-C interface connection, the battery package to second electric tool output energy.
15. A system according to claim 14, wherein the first voltage rating of the first power tool is different from the second voltage rating of the second power tool.
CN202110594839.2A 2020-11-06 2021-05-28 Battery pack, electric tool system and system Pending CN114448009A (en)

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EP22810250.5A EP4350866A1 (en) 2021-05-28 2022-04-15 Battery pack, electric tool system, and charging system
CA3220576A CA3220576A1 (en) 2021-05-28 2022-04-15 Battery pack, power tool system, and charging system
PCT/CN2022/087124 WO2022247517A1 (en) 2021-05-28 2022-04-15 Battery pack, electric tool system, and charging system
AU2022282142A AU2022282142A1 (en) 2021-05-28 2022-04-15 Battery pack, electric tool system, and charging system
US18/519,071 US20240088506A1 (en) 2021-05-28 2023-11-27 Battery pack, power tool system and charging system

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CN202022544944 2020-11-06
CN2020225449449 2020-11-06
CN202011228201.9A CN112259866A (en) 2020-11-06 2020-11-06 Battery pack, electric tool and system
CN2020112282019 2020-11-06

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CN202121180953.2U Active CN218548687U (en) 2020-11-06 2021-05-28 Charger and charging system
CN202110597537.0A Pending CN114448011A (en) 2020-11-06 2021-05-28 Charging control system and method, battery pack and charging combination
CN202121189296.8U Active CN218548688U (en) 2020-11-06 2021-05-28 Adaptation device and tool system
CN202110594839.2A Pending CN114448009A (en) 2020-11-06 2021-05-28 Battery pack, electric tool system and system
CN202121181551.4U Active CN215419646U (en) 2020-11-06 2021-05-28 Charger and charging system
CN202121189483.6U Active CN218939917U (en) 2020-11-06 2021-05-28 Battery pack, electric tool system and system
CN202110596483.6A Pending CN114448010A (en) 2020-11-06 2021-05-28 Charging and discharging control system and method and battery pack
CN202110599060.XA Active CN114447533B (en) 2020-11-06 2021-05-28 Battery pack, power supply system and tool system
CN202110599056.3A Pending CN114448012A (en) 2020-11-06 2021-05-28 Charging and discharging communication control system and method and battery pack
CN202110599414.0A Pending CN114448013A (en) 2020-11-06 2021-05-28 Charging and discharging control system and method and battery pack
CN202121186466.7U Active CN218919168U (en) 2020-11-06 2021-05-28 Battery pack, power supply system and tool system
CN202110592719.9A Pending CN114448007A (en) 2020-11-06 2021-05-28 Adaptation device and charging system
CN202110598060.8A Pending CN114447457A (en) 2020-11-06 2021-05-28 Battery pack, power supply system and tool system
CN202121186384.2U Active CN214797631U (en) 2020-11-06 2021-05-28 Battery pack, electric tool and power supply system
CN202110599310.XA Pending CN114530900A (en) 2020-11-06 2021-05-28 Charger, battery pack, charging combination and charging method
CN202110592720.1A Pending CN114448008A (en) 2020-11-06 2021-05-28 Multi-slot charger and charging system
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CN202121189300.0U Active CN215911524U (en) 2020-11-06 2021-05-28 Electric tool system
CN202110596769.4A Pending CN114447450A (en) 2020-11-06 2021-05-28 Backpack type battery pack, charging and discharging control method and charging and discharging combination
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CN202110596483.6A Pending CN114448010A (en) 2020-11-06 2021-05-28 Charging and discharging control system and method and battery pack
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CN202110592720.1A Pending CN114448008A (en) 2020-11-06 2021-05-28 Multi-slot charger and charging system
CN202110594819.5A Pending CN114530899A (en) 2020-11-06 2021-05-28 Adaptation device and tool system
CN202121189300.0U Active CN215911524U (en) 2020-11-06 2021-05-28 Electric tool system
CN202110596769.4A Pending CN114447450A (en) 2020-11-06 2021-05-28 Backpack type battery pack, charging and discharging control method and charging and discharging combination
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CN218939916U (en) * 2020-11-06 2023-04-28 格力博(江苏)股份有限公司 Waterproof battery pack
CN112259866A (en) * 2020-11-06 2021-01-22 格力博(江苏)股份有限公司 Battery pack, electric tool and system

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