WO2020125209A1 - 能量存储装置及电动工具*** - Google Patents

能量存储装置及电动工具*** Download PDF

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Publication number
WO2020125209A1
WO2020125209A1 PCT/CN2019/114230 CN2019114230W WO2020125209A1 WO 2020125209 A1 WO2020125209 A1 WO 2020125209A1 CN 2019114230 W CN2019114230 W CN 2019114230W WO 2020125209 A1 WO2020125209 A1 WO 2020125209A1
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WO
WIPO (PCT)
Prior art keywords
male
voltage
plug
energy
terminal
Prior art date
Application number
PCT/CN2019/114230
Other languages
English (en)
French (fr)
Inventor
刘传君
严安
Original Assignee
常州格力博有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201822145919.6U external-priority patent/CN209200050U/zh
Priority claimed from CN201811564236.2A external-priority patent/CN109473616A/zh
Priority claimed from CN201822146597.7U external-priority patent/CN209217097U/zh
Priority claimed from CN201822146566.1U external-priority patent/CN209217096U/zh
Priority claimed from CN201811566089.2A external-priority patent/CN109360930A/zh
Priority claimed from CN201811564279.0A external-priority patent/CN109599526B/zh
Priority claimed from CN201822146585.4U external-priority patent/CN209200051U/zh
Priority claimed from CN201811564074.2A external-priority patent/CN109360929A/zh
Priority claimed from CN201822145933.6U external-priority patent/CN209282869U/zh
Priority to EP19900190.0A priority Critical patent/EP3890145A4/en
Priority to AU2019411162A priority patent/AU2019411162A1/en
Application filed by 常州格力博有限公司 filed Critical 常州格力博有限公司
Publication of WO2020125209A1 publication Critical patent/WO2020125209A1/zh
Priority to US17/344,940 priority patent/US11855299B2/en
Priority to US17/523,915 priority patent/US11641043B2/en
Priority to US17/523,913 priority patent/US11637347B2/en
Priority to US18/508,176 priority patent/US20240079707A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • B25F5/02—Construction of casings, bodies or handles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • B25F5/02—Construction of casings, bodies or handles
    • B25F5/021—Construction of casings, bodies or handles with guiding devices
    • B25F5/023—Construction of casings, bodies or handles with guiding devices with removably attached levels
    • 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
    • H01M10/04—Construction or manufacture in general
    • H01M10/0445—Multimode batteries, e.g. containing auxiliary cells or electrodes switchable in parallel or series connections
    • 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
    • H01M10/4207—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells for several batteries or cells simultaneously or sequentially
    • 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
    • H01M10/46—Accumulators structurally combined with charging apparatus
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/247—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for portable devices, e.g. mobile phones, computers, hand tools or pacemakers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/269—Mechanical means for varying the arrangement of batteries or cells for different uses, e.g. for changing the number of batteries or for switching between series and parallel wiring
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/509—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the type of connection, e.g. mixed connections
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/519—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising printed circuit boards [PCB]
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/543—Terminals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/04—Pins or blades for co-operation with sockets
    • H01R13/05—Resilient pins or blades
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/10—Sockets for co-operation with pins or blades
    • H01R13/11—Resilient sockets
    • H01R13/113—Resilient sockets co-operating with pins or blades having a rectangular transverse section
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J1/00—Circuit arrangements for dc mains or dc distribution networks
    • H02J1/08—Three-wire systems; Systems having more than three wires
    • H02J1/082—Plural DC voltage, e.g. DC supply voltage with at least two different DC voltage levels
    • 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
    • H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
    • H02J7/0024—Parallel/serial switching of connection of batteries to charge or load circuit
    • 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
    • H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/30—Batteries in portable systems, e.g. mobile phone, laptop
    • 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
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Definitions

  • the invention relates to the field of power tools, in particular to an energy storage device and an electric tool system.
  • power tools are usually driven by rechargeable battery packs.
  • a battery pack composed of multiple battery cells is used, and the motor is driven by the electrical energy stored in the battery pack. After use, the voltage decreases, the battery pack can be removed from the power tool, and an external charging device can be used to charge the battery pack.
  • Power tools usually have a rated working voltage. Different power tools often have different rated working voltages, and the output voltage of the battery pack is fixed. Therefore, different battery packs need to be prepared to adapt to different rated working voltages of power tools , The operation is more cumbersome, the use cost increases, resulting in a waste of resources.
  • An object of the present invention is to provide an energy storage device capable of providing three output voltages and an electric tool system using the energy storage device.
  • An energy storage device includes four energy units having the same voltage value, each of the energy units is provided with a positive electrode and a negative electrode, and the energy storage device includes a socket.
  • the socket includes eight independently arranged electrode terminals, the eight electrode terminals include four positive terminals respectively connected to the positive poles of the four energy cells, and four negative electrodes respectively connected to the negative poles of the four energy cells Terminal.
  • each of the electrode terminals is provided with a contact portion formed by two arc-shaped elastic arms, and the socket further includes a communication terminal and a charging terminal.
  • the eight electrode terminals are equally arranged in two rows, and the two electrode terminals corresponding to the upper and lower positions have the same polarity and the corresponding two contact portions are aligned up and down.
  • the four electrode terminals on the two outer sides are respectively connected to the positive electrodes and the negative electrodes of two of the energy units, and the four electrode terminals on the inner side are connected to the positive electrodes of the other two energy units. Connect to the negative electrode respectively.
  • the four electrode terminals in the upper row are the fourth negative electrode terminal, the second negative electrode terminal, the third positive terminal, and the first positive terminal in sequence, and the four electrode terminals in the lower row are sequentially the first A negative terminal, a third negative terminal, a second positive terminal and a fourth positive terminal.
  • the eight electrode terminals are arranged in a row, which are a fourth negative terminal, a third negative terminal, a second negative terminal, a first negative terminal, a second positive terminal, a third positive terminal, a fourth The positive terminal and the first positive terminal.
  • An electric tool system includes an electric tool and the aforementioned energy storage device.
  • the electric tool is provided with a plug that cooperates with the socket.
  • a plurality of male terminals, a plurality of the male terminals are electrically connected to the eight electrode terminals, respectively, so that the four energy units form one of the following three connection modes: a. Four energy units are connected in parallel, b. Four of the energy units are connected in series two by two in parallel or in series after two in series, c. Four of the energy units are connected in series.
  • the plug includes a first male plug and a second male plug, the first male plug is connected to four negative terminals of the four energy units, and the second male plug is connected to four Four positive terminals of the energy unit.
  • first male insert and the second male insert are each provided with two contact arms, and each of the contact arms is in contact with two electrode terminals; or the first male insert
  • the contact piece and the second male insert piece are each provided with four contact arms; each contact arm is in contact with one of the electrode terminals.
  • the plug includes a first male plug, a second male plug, and a third male plug.
  • the first male plug connects the two negative terminals corresponding to two of the energy units.
  • the second male plug is connected to the two positive terminals corresponding to the other two energy units, and the third male plug is connected to the remaining four electrode terminals.
  • the first male insert and the second male insert are each provided with two contact arms, and the third male insert is provided with four contact arms.
  • the four contact arms of the third male insert are located in a row.
  • the plug includes a first male plug, a second male plug, a third male plug, a fourth male plug, and a fifth male plug, and the first male plug is connected to one of the plugs.
  • the negative terminal of the energy unit, the fifth male insert is connected to the positive terminal of another energy unit, the second male insert, the third male insert and the fourth male insert.
  • the remaining six electrode terminals are connected in series.
  • the first male insert and the fifth male insert are each provided with a contact arm
  • the second male insert, the third male insert and the fourth male insert Each is provided with two contact arms respectively connected to different electrodes.
  • An electric tool system includes a low-voltage electric tool, a medium-voltage electric tool, and a high-voltage electric tool.
  • the electric tool system further includes the foregoing energy storage device, the low-voltage electric tool
  • the tool is provided with a low-voltage plug, the low-voltage plug is docked with the socket and the four energy units are in full parallel state;
  • the high-voltage electric tool is provided with a high-voltage plug, the high-voltage plug is docked with the socket and the four
  • Each of the energy units is in a fully serial state;
  • the medium-voltage power tool is provided with a medium-voltage plug, the medium-voltage plug is docked with the socket and four of the energy units are in a medium-voltage state.
  • the beneficial effect of the present invention is that the energy storage device of the present invention has multiple output voltages, which increases the application range of the energy storage device and reduces the use cost.
  • FIG. 1 is a parallel circuit diagram of four energy units in the present invention.
  • FIG. 2 is a circuit diagram of four energy units connected in parallel and then connected in series in the present invention.
  • FIG. 3 is a circuit diagram of four energy units connected in series and then connected in parallel in the present invention.
  • FIG. 4 is a circuit diagram of four energy units connected in series in the present invention.
  • FIG. 5 is a perspective view of an energy storage device according to Embodiment 1 of the present invention.
  • FIG. 6 is a plug-in diagram of a low-voltage plug and a conductive terminal according to Embodiment 1 of the present invention.
  • FIG. 7 is a structural diagram of the low voltage plug in FIG. 6.
  • Embodiment 8 is a plug-in diagram of a medium-voltage plug and a conductive terminal according to Embodiment 1 of the present invention.
  • FIG. 9 is a structural diagram of the medium voltage plug in FIG. 8.
  • FIG. 10 is a structural diagram of one of the medium-voltage male inserts in FIG. 9.
  • FIG. 11 is a plug-in diagram of a high-voltage plug and a conductive terminal according to Embodiment 1 of the present invention.
  • FIG. 12 is a structural diagram of the high-voltage plug in FIG. 11.
  • FIG. 13 is a structural diagram of two high-voltage male inserts in FIG. 12.
  • FIG. 14 is a perspective view of an energy storage device according to Embodiment 2 of the present invention.
  • FIG. 15 is a plug-in diagram of a low-voltage plug and a conductive terminal according to Embodiment 2 of the present invention.
  • FIG. 16 is a structural diagram of the low-voltage plug in FIG. 15.
  • FIG. 17 is a plug-in diagram of a medium-voltage plug and a conductive terminal according to Embodiment 2 of the present invention.
  • FIG. 18 is a structural diagram of the medium-voltage plug in FIG. 17.
  • Fig. 19 is a plug-in diagram of a high-voltage plug and a conductive terminal.
  • FIG. 20 is a structural diagram of the high voltage plug in FIG. 19.
  • the present invention provides an energy storage device 100 including four energy units.
  • the voltage value of each energy unit is the same, which is nV. Please note that the measured voltage of each energy unit is n ⁇ 5% V can be regarded as equal.
  • the four energy units can output three voltages through different series or parallel connection methods:
  • the energy unit may be a single battery or other energy carriers, or may be an electrical combination of multiple batteries or energy carriers; the energy storage devices include but are not limited to lithium batteries and nickel-metal hydride batteries. , Nickel-cadmium batteries and other rechargeable batteries.
  • the energy storage device 100 may also be referred to as a battery pack.
  • the energy storage device 100 includes a housing (not shown) and a socket. Four energy units are accommodated in the housing, and the socket is electrically connected to the four energy units.
  • the socket 110 is disposed on one side of the energy storage device 100 and exposes its plug interface for mating with the plug of the mated power tool.
  • the socket 110 includes a body 106 and a plurality of mutually independent conductive terminals accommodated in the body 106.
  • several conductive terminals include eight electrode terminals electrically connected to the positive and negative electrodes of the four energy units, specifically: the first positive terminal 111 connected to the positive and negative electrodes of the first energy unit and The first negative terminal 112, the second positive terminal 113 and the second negative terminal 114 connected to the positive and negative electrodes of the second energy unit, the third positive terminal 115 and the third positive electrode connected to the positive and negative electrodes of the third energy unit
  • the negative electrode terminal 116 and the fourth positive electrode terminal 117 and the fourth negative electrode terminal 118 connected to the positive and negative electrodes of the fourth energy cell.
  • the conductive terminal further includes a communication terminal 107 and a charging terminal 108 provided outside the eight electrode terminals.
  • the communication terminal 107 and the charging terminal 108 need to be provided separately, which can prevent damage to the energy storage device caused by high voltage during charging and prolong the service life of the energy storage device.
  • the eight electrode terminals are equally arranged in two rows, and the communication terminal 107 and the charging terminal 108 are respectively provided on both sides of the two rows of electrode terminals; the four electrode terminals on the outer side of the upper and lower two rows and two of them The positive and negative poles of each energy unit are connected, and the four electrode terminals on the inner side are connected to the positive and negative poles of the other two energy units, and the two electrode terminals corresponding to the same energy unit are arranged in a diagonal relationship.
  • the electrode terminals located in the upper row from left to right are the fourth negative electrode terminal 118, the second negative electrode terminal 114, the third positive terminal 115, and the first positive terminal 111, and the electrode terminals located in the lower row from left to right are The first negative terminal 112, the third negative terminal 116, the second positive terminal 113, and the fourth positive terminal 117.
  • Each electrode terminal 111, 112, 113, 114, 115, 116, 117, 118 is provided with a contact portion.
  • the contact portion includes two arc-shaped elastic arms that protrude relatively, and a vertical position is formed between the two elastic arms
  • the insertion gap is for inserting the male plug of the butted plug.
  • the two electrode terminals corresponding to the positions in the upper and lower rows have the same polarity, and the two contact portions are aligned up and down, and can be in contact with the same butting male plug, for example, the fourth in the first position on the left upper row
  • the negative terminal 118 is aligned with the contact portion of the first negative terminal 112 located at the first position on the left lower row, and so on.
  • the energy storage device 100 of the present invention can provide energy for a variety of power tools with different rated voltages.
  • Each power tool is provided with a plug that docks with the socket 110 of the energy storage device 100.
  • the plug includes an insulating base (not shown) and installation Several male inserts on an insulating base (not shown). Different power tools have different plugs, and different plugs have male inserts in different arrangements to create different connection methods with the eight electrode terminals of the socket, thereby forming a difference between the four energy units
  • the connection mode forms different output voltages.
  • Each plug also includes a communication male plug that is mated with the communication terminal 107 and a charging male plug that is mated with the charging terminal 108. The communication male plug and the charging male plug do not participate in the voltage output, so this The invention will not be described in detail.
  • FIG. 6 shows a situation in which the socket 110 of the energy storage device 100 of the present invention cooperates with the low-voltage plug 120 of a low-voltage power tool.
  • the low-voltage plug 120 includes communication male plugs 124 and charging male plugs 125 located on the two outermost sides, which are mated with the communication terminals 107 and the charging terminals 108, respectively.
  • the low-voltage plug 120 further includes two independently arranged low-voltage male plugs 121, 122.
  • the low-voltage male plug 121 includes two contact arms 1211, 1212, a connecting portion 1213 connecting the two contact arms 1211, 1212, and the contact The voltage output unit 1214 to which the arm 1211 and the contact arm 1212 are connected.
  • the low-voltage male plug 122 includes two contact arms 1221, 1222 disposed oppositely, a connection portion 1223 connecting the two contact arms 1221, 1222, and a voltage output portion 1224 connected to the contact arm 1211 and the contact arm 1212.
  • the structures of the two low-voltage male plugs 121 and 122 are the same, and the low-voltage male plug 121 is taken as an example for description.
  • the contact arms 1211, 1212 and the voltage output portion 1214 are located at the front and rear ends of the low-voltage male plug 121, respectively, and the contact arm 1211 , 1212 and the voltage output portion 1214 are all vertically arranged, and the voltage output portion 1214 and one of the contact arms 1211, 1212 are located in the same vertical plane.
  • the connecting portion 1213 horizontally connects the bottom edges of the two contact arms 1211, 1212 close to the side of the voltage output portion 1214, and is located at the middle of the low-voltage male plug 121.
  • each contact arm 1211, 1212 of the low-voltage male plugs 121, 122 is connected to the contact portions of the two electrode terminals aligned vertically. Specifically, the contact arm 1211 of the low-voltage male insert 121 is simultaneously inserted with the fourth negative terminal 118 and the first negative terminal 112, and the contact arm 1212 is simultaneously inserted with the second negative terminal 114 and the third negative terminal 116, that is, the low voltage
  • the male insert 121 connects the negative poles of the four energy cells together.
  • the contact arm 1221 of the low-voltage male insert 122 is simultaneously inserted with the third positive terminal 115 and the second positive terminal 113, and the contact arm 1222 is simultaneously inserted with the first positive terminal 111 and the fourth positive terminal 118, that is, the low-voltage male insert 122 connects the positive poles of the four energy cells together. In this way, the low-voltage male insert 121 and the low-voltage male insert 122 connect four energy units in parallel. As shown in FIG. 1, the energy storage device 100 outputs an nV voltage for the low-voltage electric tool through two voltage output units 1214 and 1224.
  • FIG. 8 shows a situation where the socket 110 of the energy storage device 100 of the present invention cooperates with the medium voltage plug 130 of a medium voltage power tool.
  • the medium voltage plug 130 includes communication male plugs (unlabeled) and charging male plugs (unlabeled) located on the two outermost sides, and is mated with the communication terminal 107 and the charging terminal 108 respectively.
  • the medium-voltage plug 130 further includes three independently provided medium-voltage male plugs 131, 132, and 133.
  • the three medium-voltage male plugs 131, 132, and 133 are mounted on an insulating base (not shown).
  • the medium voltage male insert 131 includes two contact arms 1311, 1312, a connection portion 1313 connecting the two contact arms 1311, 1312, and a voltage output portion 1314 connected to the contact arms 1311 and 1312.
  • the medium voltage male plug 132 includes two contact arms 1321 and 1322 oppositely disposed, a connection portion 1323 connecting the two contact arms 1321 and 1322, and a voltage output portion 1324 connected to the contact arms 1321 and 1322.
  • the two medium-voltage male plugs 131 and 132 are arranged side by side.
  • the structure of the medium-voltage male plugs 131 and 132 is basically the same as the low-voltage male plugs 121 and 122 of the low-voltage plug, except that the height in the vertical direction is relatively low.
  • the pieces 131 and 132 are only connected to the four electrode terminals in the lower row of the socket 110. As shown in FIG.
  • the medium-voltage male insert 133 includes four contact arms 1331, 1332, 1333, 1334 arranged side by side and three connecting portions 1335 connecting adjacent contact arms 1331, 1332, 1333, 1334 in pairs. 1336, 1337.
  • the medium-voltage male plug 133 is disposed above the two medium-voltage male plugs 131 and 132 and is used to connect with the four electrode terminals in the upper row of the socket 110
  • the contact arms 1311, 1312 of the medium-voltage male plug 131 are respectively inserted into the first negative terminal 112 and the third negative terminal 116 in the lower row.
  • the contact arms 1321 and 1322 of the medium voltage male insert 132 are respectively connected to the second positive terminal 113 and the fourth positive terminal 117 located in the lower row, that is, the medium voltage male insert 131 connects the two of the first and third energy units Two negative poles are connected in parallel, and the medium voltage male insert 132 connects the two positive poles of the second and fourth energy units in parallel.
  • the contact arms 1331, 1332, 1333, 1334 of the middle-voltage male insert 133 are inserted into four electrode terminals located in the upper row. Specifically, the contact arms 1331, 1332 and the connecting piece 1335 connect the fourth negative terminal 118 and the second negative terminal 114 of the second group in parallel, and the contact arms 1333, 1334 and the connecting piece 1337 connect the third positive terminal 115 and the first positive terminal 111 are connected in parallel. Combining the connection of the first two middle voltage male plugs 131 and 132 and the lower row of electrode terminals, the first and third energy units are already in parallel state, and the second and fourth energy units are already in parallel state.
  • the parallel first and third energy units and the parallel second and fourth energy units are connected in series through the connecting piece 1336 of the middle voltage male insert 133, so that the four energy units are connected in parallel and then connected in series, as shown in the figure As shown in FIG. 2, the energy storage device 100 outputs a voltage of 2 nV for the medium-voltage power tool through two voltage output units 1314 and 1324.
  • the plug can be set as a combination of other forms of male plugs, so that when the plug and socket 110 are mated, the four energy units are connected in series two by two. Connected in parallel to output 2nV voltage, similar to Figure 3, the energy unit of Figure 3 can be regarded as the first, third, second and fourth energy from top to bottom, according to the connection method in Figure 3 That’s it, I won’t go into details here.
  • FIG. 11 shows the cooperation between the socket 110 of the energy storage device 100 of the present invention and the high-voltage plug 140 of a high-voltage electric tool.
  • the high-voltage plug 140 includes a communication male plug (unlabeled) and a charging male plug (unlabeled) located on the two outermost sides, and is mated with the communication terminal 107 and the charging terminal 108, respectively.
  • the high-voltage plug 140 further includes five independently arranged high-voltage male plugs 141, 142, 143, 144, and 145.
  • the five high-voltage male plugs 141, 142, 143, 144, and 145 are mounted on a base (not shown).
  • the high voltage male inserts 142, 143 are located in the upper row
  • the high voltage male inserts 141, 144, 145 are located in the lower row
  • the high voltage male inserts 144 are located between the high voltage male inserts 141, 145.
  • the high-voltage male insert 141 includes a contact arm 1411 and a voltage output portion 1412 connected to the contact arm 1411.
  • the contact arm 1411 is inserted into the first negative terminal 112.
  • the high-voltage male plug 145 includes a contact arm 1451 and a voltage output portion 1452 connected to the contact arm 1451.
  • the contact arm 1451 is inserted into the fourth positive terminal 117.
  • the high-voltage male insert 142 includes two contact arms 1421, 1422 disposed oppositely and a connecting portion 1423 connecting the contact arms 1421, 1422.
  • the high-voltage male insert 143 includes two contact arms 1431, 1432 disposed oppositely and a connecting portion 1433 connecting the contact arms 1431, 1432.
  • the high-voltage male insert 144 includes two oppositely disposed contact arms 1441, 1442 and a connecting portion 1443 connecting the contact arms 1441, 1442, respectively.
  • the contact arm 1421 is located directly above the contact arm 1411
  • the contact arm 1422 is located directly above the contact arm 1442
  • the contact arm 1431 is located directly above the contact arm 1441
  • the contact arm 1432 is located directly above the contact arm 1451.
  • the contact arm 1411 of the high voltage male insert 141 is inserted into the first negative terminal 112; the contact arm 1451 of the high voltage male insert 145 is inserted into the fourth positive terminal 117 Pick up.
  • the contact arms 1421 and 1422 of the high-voltage male insert 142 are respectively connected to the fourth negative terminal 118 and the third positive terminal 115, that is, the positive electrode of the third energy cell and the negative electrode of the fourth energy cell are connected in series.
  • the contact arms 1431 and 1432 of the high-voltage male insert 143 are respectively inserted into the second negative terminal 114 and the first positive terminal 111, that is, the positive electrode of the first energy cell and the negative electrode of the second energy cell are connected in series.
  • the contact arms 1441 and 1442 of the high-voltage male insert 144 are respectively connected to the third negative terminal 116 and the second positive terminal 113, that is, the positive electrode of the second energy cell and the negative electrode of the third energy cell are connected in series.
  • the high-voltage male inserts 142, 143, and 144 connect four energy units in series. As shown in FIG. 4, the energy storage device 100 outputs a voltage of 4 nV for the high-voltage power tool through two voltage output sections 1412, 1452.
  • FIG. 14 is another embodiment of the energy storage device of the present invention, which differs from the energy storage device 100 of the foregoing first embodiment only in the arrangement of the conductive terminals.
  • the energy storage device 200 includes a casing (not shown), four energy units housed in the casing, and a socket 210 electrically connected to the four energy units.
  • the socket 210 includes a body 206 and a plurality of mutually independent conductive terminals accommodated in the body 206.
  • the plurality of conductive terminals includes eight electrode terminals electrically connected to the positive and negative electrodes of the four energy units, specifically The first positive terminal 211 and the first negative terminal 212 connected to the positive and negative poles of the first energy cell, the second positive terminal 213 and the second negative terminal 214 connected to the positive and negative poles of the second energy cell, and the first The third positive terminal 215 and the third negative terminal 216 connected to the positive and negative poles of the three energy cells, and the fourth positive terminal 217 and the fourth negative terminal 218 connected to the positive and negative poles of the fourth energy cell.
  • the conductive terminal further includes a communication terminal and a charging terminal (not shown) provided outside the eight electrode terminals.
  • the eight electrode terminals are linearly arranged in a row, and from left to right are the fourth negative terminal 218, the third negative terminal 216, the second negative terminal 214, the first negative terminal 212, and the second positive terminal 213, a third positive terminal 215, a fourth positive terminal 217, and a first positive terminal 211.
  • the contact portion of each electrode terminal is the same as that in the first embodiment, and reference may be made to the first embodiment.
  • the energy storage device 200 of the present invention can also provide energy for a variety of power tools with different rated voltages.
  • Each power tool is provided with a plug that is docked with the socket 210 of the energy storage device 200.
  • the different plugs make the eight electrode terminals of the socket 210 Different connection methods are generated between them, so that different connection methods are formed between the four battery packs and different output voltages are formed, as shown in FIGS. 1 to 4.
  • Each plug includes a communication male plug (not shown) that is mated with the communication terminal and a charging male plug (not shown) that is mated with the charging terminal, and is not related to the voltage output.
  • FIG. 15 shows a situation in which the conductive terminals of the socket 210 of the energy storage device 200 of the present invention cooperate with the low-voltage male plug of the low-voltage plug 220 of a low-voltage power tool.
  • the low-voltage plug 220 includes two independently arranged low-voltage male plugs 221 and 222.
  • the two low-voltage male plugs 221 and 222 are mounted on an insulating base (not shown).
  • the low-voltage male insert 221 includes four contact arms 2211, 2212, 2213, 2214 arranged side by side, three connecting portions 2215, 2216, 2217 connecting two adjacent contact arms and connecting with the contact arms 2211, 2212, 2213, 2214
  • the voltage output portion 2218 is located on the rear side of the low-voltage male insert 221, and can be located in the same vertical plane as one of the contact arms 2211, 2212, 2213, and 2214.
  • the low-voltage male insert 222 includes four contact arms 2221, 2222, 2223, 2224 arranged side by side, three connecting portions 2225, 2226, 2227 connecting two adjacent contact arms and connecting with the contact arms 2221, 2222, 2223, 2224 In the voltage output part 2228, the low-voltage male plug 222 and the low-voltage male plug 221 have the same structure.
  • the contact arms 2211, 2212, 2213, and 2214 of the low-voltage male insert 221 are sequentially connected to the fourth negative terminal 218, the third negative terminal 216, and the second negative terminal 214
  • the first negative electrode terminal 212 are inserted, that is, the negative electrodes of the four energy cells are connected in parallel.
  • the contact arms 2221, 2222, 2223, and 2224 of the low-voltage male insert 222 are sequentially inserted into the second positive terminal 213, the third positive terminal 215, the fourth positive terminal 217, and the first positive terminal 211, that is, the four The positive pole of an energy unit. Therefore, the two low-voltage male blades 221 and 222 are connected to four energy units in parallel.
  • the energy storage device 200 outputs nV voltage for the low-voltage power tool through two voltage output parts 2218 and 2228.
  • FIG. 17 shows a situation in which the conductive terminals of the socket 210 of the energy storage device 200 of the present invention cooperate with the medium-voltage male blade of the medium-voltage plug 230 of a medium-voltage power tool.
  • the medium-voltage plug 230 includes three independently arranged medium-voltage male inserts 231, 232, and 233 arranged side by side.
  • the medium-voltage male inserts 231, 232, and 233 are mounted on a base (not shown) .
  • the medium voltage male insert 231 includes two contact arms 2311, 2312, a connection portion 2313 connecting the contact arms 2311, 2312, and a voltage output portion 2314 connected to the contact arms 2311, 2312.
  • the medium voltage male insert 232 includes two oppositely disposed contact arms 2321, 2322, a connecting portion 2323 connecting the contact arms 2321, 2322, and a voltage output portion 2324 connected to the contact arms 2321, 2322; the medium voltage male insert 233 includes side by side The provided four contact arms 2331, 2332, 2333, 2334 and three connecting portions 2335, 2336, 2337 connecting adjacent contact arms two by two.
  • the two contact arms 2311, 2312 of the medium-voltage male blade 231 are inserted into the fourth negative terminal 218 and the third negative terminal 216, respectively.
  • the two contact arms 2321, 2322 of the medium-voltage male insert 232 are inserted into the second positive terminal 213 and the first positive terminal 211, respectively.
  • the four contact arms 2331, 2332, 2333, and 2334 of the middle-voltage male insert 233 are sequentially inserted into the second negative terminal 214, the first negative terminal 212, the third positive terminal 215, and the fourth positive terminal 217.
  • the energy storage device 200 passes through two voltage output parts 2314 and 2324, output 2nV voltage for the medium voltage power tool.
  • the plug can be set as a combination of other forms of male plugs, so that when the plug and socket 210 are mated, the four energy units are connected in series two by two. It is connected in parallel to output a voltage of 2nV, which is not repeated here.
  • FIG. 19 shows a situation in which the conductive terminal of the socket 210 of the energy storage device 200 of the present invention cooperates with the high-voltage male blade of the high-voltage plug 330 of a high-voltage power tool.
  • the high-voltage plug 240 includes five independently arranged high-voltage male plugs 241, 242, 243, 244, and 245.
  • the five high-voltage male plugs 241, 242, 243, 244, and 245 are mounted on the base (not (Illustrated).
  • the high-voltage male plug 241 includes a contact arm 2411 and a voltage output part 2412 connected to the contact arm 2411.
  • the high-voltage male plug 245 includes a contact arm 2451 and a voltage output portion 2452 connected to the contact arm 2451.
  • the high-voltage male insert 242 includes two contact arms 2421, 2422 and a connecting portion 2423 connecting the two contact arms 2421, 2422.
  • the high-voltage male insert 243 includes two contact arms 2431, 2432 and a connecting portion 2433 connecting the contact arms 2431, 2432.
  • the high-voltage male insert 244 includes two contact arms 2441, 2442 and a connecting portion 2443 connecting the contact arms 2441, 2442.
  • the contact arm 2411 of the high voltage male insert 241 is inserted into the fourth negative terminal 218, and the contact arm 2451 of the high voltage male insert 245 is inserted into the first positive terminal 211
  • the contact arms 2421 and 2422 of the high-voltage male insert 242 are respectively inserted into the fourth positive terminal 217 and the third negative terminal 216 to connect the third and fourth energy units in series
  • the contact arms 2431 and 2432 of the high-voltage male insert 243 The third positive terminal 215 and the second negative terminal 214 are respectively inserted to connect the third and second energy units in series.
  • the contact arms 2441 and 2442 of the high-voltage male insert 244 are connected to the second positive terminal 213 and the first negative terminal 212, respectively Plug in to connect the second and first energy units in series. That is, four energy units are connected in series with the high-voltage male inserts 241, 242, and 243.
  • the contact arm 2411 of the high-voltage male insert 241 is inserted into the fourth negative terminal 218, and the contact arm 2451 of the high-voltage male insert 245 is inserted into the first positive terminal 211. Then, as shown in FIG. 19, the energy storage device 100 outputs a voltage of 4nV for the high-voltage power tool through the two voltage output parts 2412 and 2452.
  • the four energy units with the same voltage are connected and inserted into the low voltage plug, the medium voltage plug and the high voltage plug through the electrode terminals, so that the four energy units output low voltage and four energy units in parallel with each other. Two or two in parallel and then in series or two or two in series and then output medium voltage or four energy units in series to output high voltage.
  • the same energy storage device can selectively supply power to three power tools with different rated working voltages, which is easy to operate and reduces the cost of use.

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Abstract

本发明提供了一种能量存储装置，包括电压值相同的四个能量单元，每一能量单元设有正极及负极。能量存储装置包括插座，插座包括八个独立设置的电极端子，八个电极端子包括分别与四个能量单元的正极连接的四个正极端子及分别与四个能量单元的负极连接的四个负极端子。本发明还提供使用该能量存储装置的电动工具***，电动工具具有与插座对接的插头，插头设有与电极端子电性连接的公插片。不同插头可将这四个所述能量单元连接于不同的状态，使能量存储装置可输出多种电压。本发明的能量存储装置使用更加灵活，可配合多种额定电压的电动工具。

Description

能量存储装置及电动工具*** 技术领域
本发明涉及领域动力工具领域，尤其涉及一种能量存储装置及电动工具***。
背景技术
在园林机械、动力工具行业，电动工具通常由可充电的电池组驱动，一般使用由多个电池单元组成的电池组，并通过电池组中储存的电能来驱动马达。使用后电压降低，可将电池组自电动工具拆下，使用外部充电装置对电池组进行充电。
电动工具通常具有一个额定的工作电压，不同的电动工具往往具有不同的额定工作电压，而电池组的输出电压是固定的，如此，需要准备不同的电池组以适配不同额定工作电压的电动工具，操作比较繁琐，使用成本增加，造成了资源浪费。
有鉴于此，有必要设计一种能量存储装置及电动工具***，以解决上述问题。
发明内容
本发明的目的在于提供一种能够提供三种输出电压的能量存储装置及使用该能量存储装置的电动工具***。
为实现上述发明目的，本发明提供如下技术方案，一种能量存储装置，包括电压值相同的四个能量单元，每一所述能量单元设有正极及负极，所述能量存储装置包括插座，所述插座包括八个独立设置的电极端子，八个所述电极端子包括分别与四个所述能量单元的正极连接的四个正极端子及分别与四个所述能量单元的负极连接的四个负极端子。
作为一个实施方式，每一所述电极端子设有由两个弧形弹性臂形成的接触部，所述插座还包括通讯端子及充电端子。
作为一个实施方式，八个所述电极端子均分设置为上、下两排，上下位置对应的两个所述电极端子的极性相同且相应两接触部上下对齐。
作为一个实施方式，位于两外侧的四个所述电极端子与其中两个所述能量单元的正极及负极分别对应连接，位于内侧的四个所述电极端子与另外两个所述能量单元的正极及负极分别对应连接。
作为一个实施方式，位于上排的四个所述电极端子依次为第四负极端子、第二负极端子、第三正极端子和第一正极端子，位于下排的四个所述电极端子依次为第一负极端子、第三负极端子、第二正极端子和第四正极端子。
作为一个实施方式，八个所述电极端子排列为一排，依次为第四负极端子、第三负极端子、第二负极端子、第一负极端子、第二正极端子、第三正极端子、第四正极端子及第一正极端子。
为实现上述发明目的，本发明还提供如下技术方案，一种电动工具***，包括电动工具及前述的能量存储装置，所述电动工具设有与所述插座配合的插头，所述插头设有多个公端子，多个所述公端子与八个所述电极端子分别电性连接，使四个所述能量单元形成以下三种连接方式中的一种：a.四个所述能量单元并联，b.四个所述能量单元两两并联后串联或两两串联后并联，c.四个所述能量单元串联。
作为一个实施方式，所述插头包括第一公插片和第二公插片，所述第一公插片连接四个所述能量单元的四个负极端子，所述第二公插片连接四个所述能量单元的四个正极端子。
作为一个实施方式，所述第一公插片和所述第二公插片各自设有两个接触臂，每一所述接触臂与两个所述电极端子接触；或者所述第一公插片和所述第二公插片各自设四个接触臂；每一所述接触臂与一个所述电极端子接触。
作为一个实施方式，所述插头包括第一公插片、第二公插片以及第三公插片，所述第一公插片连接对应其中两个能量单元的两个所述负极端子，所述第二公 插片连接对应另外两个能量单元的两个所述正极端子，所述第三公插片连接剩余的四个所述电极端子。
作为一个实施方式，所述第一公插片和所述第二公插片各自设有两个接触臂，所述第三公插片设有四个接触臂。
作为一个实施方式，所述第三公插片的四个所述接触臂位于一排。
作为一个实施方式，所述插头包括第一公插片、第二公插片、第三公插片、第四公插片及第五公插片，所述第一公插片连接对应其中一个所述能量单元的负极端子，所述第五公插片连接对应另一个所述能量单元的正极端子，所述第二公插片、所述第三公插片及所述第四公插片串联剩余的六个所述电极端子。
作为一个实施方式，所述第一公插片和所述第五公插片各自设有一个接触臂，所述第二公插片、所述第三公插片及所述第四公插片各设有分别连接不同所述电极的两个接触臂。
为实现上述发明目的，本发明又提供如下技术方案，一种电动工具***，包括低压电动工具、中压电动工具及高压电动工具，所述电动工具***还包括前述能量存储装置，所述低压电动工具设有低压插头，所述低压插头与所述插座对接并使四个所述能量单元处于全并联状态；所述高压电动工具设有高压插头，所述高压插头与所述插座对接并使四个个所述能量单元处于全串联状态；所述中压电动工具设有中压插头，所述中压插头与所述插座对接并使四个所述能量单元处于一中压状态。
本发明的有益效果是：本发明能量存储装置具有多种输出电压中，增加了能量存储装置的适用范围，降低了使用成本。
附图说明
图1为本发明中四个能量单元并联电路图。
图2为本发明中四个能量单元两两并联后再串联的电路图。
图3为本发明中四个能量单元两两串联后再并联的电路图。
图4为本发明中四个能量单元串联的电路图。
图5为本发明实施例一的能量存储装置的立体图。
图6为本发明实施例一的低压插头与导电端子插接图。
图7为图6中低压插头的结构图。
图8为本发明实施例一的中压插头与导电端子插接图。
图9为图8中中压插头的结构图。
图10为图9中其中一个中压公插片的结构图。
图11为本发明实施例一的高压插头与导电端子插接图。
图12为图11中高压插头的结构图。
图13为图12中其中两个高压公插片的结构图。
图14为本发明实施例二的能量存储装置的立体图。
图15为本发明实施例二的低压插头与导电端子插接图。
图16为图15中低压插头的结构图。
图17为本发明实施例二的中压插头与导电端子插接图。
图18为图17中中压插头的结构图。
图19为高压插头与导电端子插接图。
图20为图19中高压插头的结构图。
具体实施方式
为了使本发明的目的、技术方案和优点更加清楚，下面结合附图和具体实施例对本发明进行详细描述。
在此，还需要说明的是，为了避免因不必要的细节而模糊了本发明，在附图中仅仅示出了与本发明的方案密切相关的结构和/或处理步骤，而省略了与本发明关系不大的其他细节。
另外，还需要说明的是，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者设备所固有的要素。
实施例一
本发明提供一种能量存储装置100包括四个能量单元。每个能量单元的电压值相同，均为nV。请留意，每个能量单元的实测电压为n±5％V均可视为相等。四个能量单元通过不同的串联或并联连接方式，可输出三种电压：
a.如图1所示四个能量单元全部并联，可输出低压nV；b.如图2所示四个能量单元两两并联后串联，或者如图3所示四个能量单元两两串联后并联，可输出中压2nV；c.如图4所示四个能量单元全部串联，可输出高压4nV。
需要说明的是，所述能量单元可以是单独的电池或者其他能量载体，也可以是多个电池或能量载体的电性组合；所述的能量存储装置括但不限于为锂电池、镍氢电池、镉镍电池等可充电电池。使用电池作为能量单元的情况下，该能量存储装置100也可以称为电池包。
参考图5所示，能量存储装置100包括壳体(未图示)以及插座，四个能量单元收容于壳体内，插座与四个能量单元电性连接。插座110设置在能量存储装置100的一侧，并露出其插接口，以供与配接的电动工具的插头配合。插座110包括本体106及收容于本体106内的若干个相互独立设置的导电端子。
结合图6所示，若干个导电端子包括与四个能量单元的正极与负极电性连接的八个电极端子，具体为：与第一个能量单元的正负极相连的第一正极端子111及第一负极端子112、与第二个能量单元的正负极相连的第二正极端子113及第二负极端子114、与第三个能量单元的正负极相连的第三正极端子115及第三负极端子116以及与第四个能量单元的正负极相连的第四正极端子117及第四负极端子118。导电端子还包括设在八个电极端子外侧的通讯端子107和充电端子108。通讯端子107和充电端子108需要分开设置，可以防止充电时的高压对能量存储装置的损害，可延长能量存储装置的使用寿命。
本实施方式中，八个电极端子均分设置为上下两排，通讯端子107和充电端子108分别设于两排电极端子的两侧；位于上、下两排外侧的四个电极 端子与其中两个能量单元的正极及负极连接，位于内侧的四个电极端子与另外两个能量单元的正、负极连接，且对应同一个能量单元的正、负极的两电极端子呈对角线关系排布。具体地，位于上排的电极端子从左到右为第四负极端子118、第二负极端子114、第三正极端子115和第一正极端子111，位于下排的电极端子从左到右依次为第一负极端子112、第三负极端子116、第二正极端子113和第四正极端子117。
每一电极端子111、112、113、114、115、116、117、118设有一个接触部，接触部包括相对凸伸的两个弧形弹性臂，两弹性臂之间形成一位于竖向的插接间隙，供对接的插头的公插片***。其中，位于上、下两排中位置对应的两个电极端子极性相同，且两接触部上下对齐，可以与同一个对接公插片接触，例如，位于左侧上排第一位置的第四负极端子118与位于左侧下排第一位置的第一负极端子112的接触部对齐，以此类推。
本发明能量存储装置100能够为多种额定电压不同的电动工具提供能量，每一电动工具均设有与能量存储装置100的插座110对接的插头，插头包括绝缘基座(未图示)及安装在绝缘基座(未图示)上的若干个公插片。不同的电动工具具有不同的插头，不同的插头具有不同排布方式的公插片，以与插座的八个电极端子之间产生不同的连接方式，借此，使四个能量单元之间形成不同的连接方式，形成不同的输出电压。每一插头另外还包括与通讯端子107配合插接的通讯公插片，以及与充电端子108配合插接的充电公插片，通讯公插片和充电公插片不参与电压的输出，所以本发明将不做详细描述。
图6中示出了本发明能量存储装置100的插座110与一种低压电动工具的低压插头120配合的情形。
参考图7所示，低压插头120包括位于两最外侧的通讯公插片124及充电公插片125，分别与通讯端子107及充电端子108配合插接。低压插头120还包括两个独立设置的低压公插片121、122，低压公插片121包括相对设置的两个接触臂1211、1212、连接两个接触臂1211、1212的连接部1213以及与接触臂1211和接触臂1212连接的电压输出部1214。低压公插片122包括 相对设置的两个接触臂1221、1222、连接两个接触臂1221、1222的连接部1223以及与接触臂1211和接触臂1212连接的电压输出部1224。两低压公插片121、122的结构相同，以低压公插片121为例进行说明，接触臂1211、1212及电压输出部1214分别位于低压公插片121的前、后两端，接触臂1211、1212及电压输出部1214均竖向设置，电压输出部1214与其中一个接触臂1211、1212位于同一竖向平面内。连接部1213水平连接两接触臂1211、1212靠近电压输出部1214一侧的底缘，位于低压公插片121的中段处。
回到图6，插座110与低压插头120插接配合时，低压公插片121、122的每个接触臂1211、1212分别与上下对齐的两个电极端子的接触部连接。具体的，低压公插片121的接触臂1211同时与第四负极端子118和第一负极端子112插接，接触臂1212同时与第二负极端子114和第三负极端子116插接，即，低压公插片121将四个能量单元的负极连接在一起。低压公插片122的接触臂1221同时与第三正极端子115和第二正极端子113插接，接触臂1222同时与第一正极端子111和第四正极端子118插接，即，低压公插片122将四个能量单元的正极连接在一起。如此，低压公插片121及低压公插片122使四个能量单元并联连接，如图1所示，能量存储装置100通过两个电压输出部1214、1224，为该低压电动工具输出nV电压。
图8中示出了本发明能量存储装置100的插座110与一种中压电动工具的中压插头130配合的情形。
参考图9所示，中压插头130包括位于两最外侧的通讯公插片(未标号)及充电公插片(未标号)，分别与通讯端子107及充电端子108配合插接。中压插头130还包括三个独立设置的中压公插片131、132、133，三个中压公插片131、132、133安装在绝缘基座(未图示)上。中压公插片131包括相对设置的两个接触臂1311、1312、连接两个接触臂1311、1312的连接部1313以及与接触臂1311和1312连接的电压输出部1314。中压公插片132包括相对设置的两个接触臂1321、1322、连接两个接触臂1321、1322的连接部1323以及与接触臂1321和1322连接的电压输出部1324。两中压公插片131、132 并排设置，中压公插片131、132的结构与低压插头的低压公插片121、122基本相同，只是竖向上的高度较低，故，中压公插片131、132只与插座110中位于下排的四个电极端子连接。结合图10所示，中压公插片133包括四个并排设置的接触臂1331、1332、1333、1334以及将相邻接触臂1331、1332、1333、1334两两连接的三个连接部1335、1336、1337。中压公插片133设置在两中压公插片131、132的上方，用于与插座110中位于上排的四个电极端子连接
回到图8，插座110与中压插头130插接配合时，中压公插片131的接触臂1311、1312分别与位于下排的第一负极端子112和第三负极端子116插接。中压公插片132的接触臂1321、1322分别与位于下排的第二正极端子113和第四正极端子117插接，即，中压公插片131将第一及第三能量单元的两个负极并联，中压公插片132将第二及第四能量单元的两个正极并联。
中压公插片133的接触臂1331、1332、1333、1334与位于上排的电极端子四个电极端子插接。具体的，接触臂1331、1332及连接片1335将第二组的第四负极端子118及第二负极端子114并联，接触臂1333、1334及连接片1337将第三正极端子115和第一正极端子111并联。结合前面两中压公插片131、132与下排电极端子的连接，第一及第三能量单元已处于并联状态，第二及第四能量单元已处于并联状态。最后通过中压公插片133的连接片1336将并联的第一及第三能量单元及并联的第二及第四能量单元串联，使四个能量单元两两并联连接后再串联连接，如图2所示，能量存储装置100通过两个电压输出部1314、1324，为该中压电动工具输出2nV电压。
所属技术领域的技术人员可以得出，在其他实施例方式中，可以将插头设置为其他形式公插片的组合，使得插头与插座110插接配合时，四个能量单元两两串联连接后再并联连接以输出2nV电压，类似参图3所示，可以将图3的能量单元由上向下分别视为第一、第三、第二及第四能量，依据图3中的连接方式对照连接即可，在此不作赘述。
图11中示出了本发明能量存储装置100的插座110与一种高压电动工 具的高压插头140的配合的情形。
高压插头140包括位于两最外侧的通讯公插片(未标号)及充电公插片(未标号)，分别与通讯端子107及充电端子108配合插接。高压插头140还包括五个独立设置的高压公插片141、142、143、144、145，五个高压公插片141、142、143、144、145安装在基座(未图示)上。高压公插片142、143位于上排，高压公插片141、144、145位于下排，且高压公插片144位于高压公插片141、145之间。
结合图12及图13所示，高压公插片141包括接触臂1411以及与接触臂1411连接的电压输出部1412，接触臂1411与第一负极端子112插接。高压公插片145包括接触臂1451以及与接触臂1451连接的电压输出部1452，接触臂1451与第四正极端子117插接。
高压公插片142包括两个相对设置的接触臂1421、1422和连接接触臂1421、1422的连接部1423。高压公插片143包括两个相对设置的接触臂1431、1432和连接接触臂1431、1432的连接部1433。高压公插片144分别包括两个相对设置的接触臂1441、1442和连接接触臂1441、1442的连接部1443。其中接触臂1421位于接触臂1411的正上方，接触臂1422位于接触臂1442的正上方，接触臂1431位于接触臂1441的正上方，接触臂1432位于接触臂1451的正上方。
回到图11，插座110与高压插头140插接配合时，高压公插片141的接触臂1411与第一负极端子112插接；高压公插片145的接触臂1451与第四正极端子117插接。高压公插片142的接触臂1421、1422分别与第四负极端子118、第三正极端子115插接，即，串联第三能量单元的正极及第四能量单元的负极。高压公插片143的接触臂1431、1432分别与第二负极端子114、第一正极端子111插接，即，串联第一能量单元的正极及第二能量单元的负极。高压公插片144的接触臂1441、1442分别与第三负极端子116、第二正极端子113插接，即，串联第二能量单元的正极及第三能量单元的负极。高压公插片142、143及144将四个能量单元串联，如图4所示，能量存储装置 100通过两个电压输出部1412、1452，为该高压电动工具输出4nV电压。
实施例二
请参图14所示，为本发明能量存储装置另一种实施方式，其与前述实施例一的能量存储装置100不同之处仅在于导电端子的排列方式。
能量存储装置200包括壳体(未图示)、收容于壳体内的四个能量单元及与四个能量单元电性连接的插座210。结合图15所示，插座210包括本体206及收容于本体206内的若干相互独立设置的导电端子，若干导电端子包括与四个能量单元的正极与负极电性连接的八个电极端子，具体为与第一个能量单元的正、负极相连的第一正极端子211及第一负极端子212、与第二个能量单元的正、负极相连的第二正极端子213及第二负极端子214、与第三个能量单元的正、负极相连的第三正极端子215及第三负极端子216以及与第四个能量单元的正负、极相连的第四正极端子217及第四负极端子218。导电端子还包括设在八个电极端子外侧的通讯端子和充电端子(未图示)。
本实施方式中，八个电极端子呈直线排列呈一排，从左到右依次为第四负极端子218、第三负极端子216、第二负极端子214、第一负极端子212、第二正极端子213、第三正极端子215、第四正极端子217及第一正极端子211。每一电极端子的接触部与实施例一中的接触部相同，可参考实施例一。
本发明能量存储装置200同样能够为多种额定电压不同电动工具提供能量，每一电动工具均设有与能量存储装置200的插座210对接的插头，不同的插头使插座210的八个电极端子之间产生不同的连接方式，借此，使四个电池包之间形成不同的连接方式，形成不同的输出电压，可参考图1至图4所示。每一插头包括与通讯端子配合插接的通讯公插片(未图示)以及与充电端子配合插接的充电公插片(未图示)，因与电压输出无关，不再赘述。
图15中示出了本发明能量存储装置200的插座210的导电端子与一种低压电动工具的低压插头220的低压公插片配合的情形。
请参图16所示，低压插头220包括两个独立设置的低压公插片221、222，两个低压公插片221、222安装在绝缘基座(未图示)上。低压公插片221包括 并排设置的四个接触臂2211、2212、2213、2214、连接相邻两两接触臂的三个连接部2215、2216、2217以及与接触臂2211、2212、2213、2214连接的电压输出部2218，电压输出部2218位于低压公插片221的后侧，可与其中一接触臂2211、2212、2213、2214位于同一竖直平面内。低压公插片222包括并排设置的四个接触臂2221、2222、2223、2224、连接相邻两个接触臂的三个连接部2225、2226、2227以及与接触臂2221、2222、2223、2224连接的电压输出部2228，低压公插片222与低压公插片221结构相同。
回到图15，插座210与低压插头220插接配合时，低压公插片221的接触臂2211、2212、2213、2214依次与第四负极端子218、第三负极端子216、第二负极端子214及第一负极端子212插接，即，并联连接所述四个能量单元的负极。低压公插片222的接触臂2221、2222、2223、2224依次与第二正极端子213、第三正极端子215、第四正极端子217及第一正极端子211插接，即，并联连接所述四个能量单元的正极。于是，两个低压公插片221、222并联接四个能量单元，如图1所示，能量存储装置200通过两个电压输出部2218、2228，为该低压电动工具输出nV电压。
图17中示出了本发明能量存储装置200的插座210的导电端子与一种中压电动工具的中压插头230的中压公插片配合的情形。
结合图18所示，中压插头230包括并排设置的三个独立设置的中压公插片231、232、233，中压公插片231、232、233安装在基座(未图示)上。中压公插片231包括两个相对设置的接触臂2311、2312、连接接触臂2311、2312的连接部2313以及与接触臂2311、2312连接的电压输出部2314。中压公插片232包括两个相对设置的接触臂2321、2322、连接接触臂2321、2322的连接部2323以及与接触臂2321、2322连接的电压输出部2324；中压公插片233包括并排设置的四个接触臂2331、2332、2333、2334以及将相邻接触臂两两连接的三个连接部2335、2336、2337。
回到图17，插座210与中压插头230插接配合时，中压公插片231的两个接触臂2311、2312分别与第四负极端子218、第三负极端子216插接。中 压公插片232的两个接触臂2321、2322分别与第二正极端子213、第一正极端子211插接。中压公插片233的四个接触臂2331、2332、2333、2334依次与第二负极端子214、第一负极端子212、第三正极端子215和第四正极端子217插接。如此，将第一、第二能量单元并联，将第三、第四能量单元并联后与并联的第一、第二能量单元串联，如图2所示，能量存储装置200通过两个电压输出部2314、2324，为该中压电动工具输出2nV电压。
所属技术领域的技术人员可以得出，在其他实施例方式中，可以将插头设置为其他形式公插片的组合，使得插头与插座210插接配合时，四个能量单元两两串联连接后再并联连接以输出2nV电压，在此不作赘述。
图19中示出了本发明能量存储装置200的插座210的导电端子与一种高压电动工具的高压插头330的高压公插片配合的情形。
结合图20所示，高压插头240包括五个独立设置的高压公插片241、242、243、244、245，五个高压公插片241、242、243、244、245安装在基座(未图示)上。其中，高压公插片241包括接触臂2411及与接触臂2411连接的电压输出部2412。高压公插片245包括接触臂2451及与接触臂2451连接的电压输出部2452。高压公插片242包括两个接触臂2421、2422和连接两个接触臂2421、2422的连接部2423。高压公插片243包括两个接触臂2431、2432和连接接触臂2431、2432的连接部2433。高压公插片244包括两个接触臂2441、2442和连接接触臂2441、2442的连接部2443。
回到图19，插座210与高压插头240插接配合时，高压公插片241的接触臂2411与第四负极端子218插接，高压公插片245的接触臂2451与第一正极端子211插接，高压公插片242的接触臂2421、2422分别与第四正极端子217、第三负极端子216插接，以串联第三及第四能量单元，高压公插片243的接触臂2431、2432分别与第三正极端子215、第二负极端子214插接，以串联第三及第二能量单元，高压公插片244的接触臂2441、2442分别与第二正极端子213、第一负极端子212插接，以串联第二及第一能量单元。即高压公插片241、242、243串联四个能量单元，高压公插片241的接触臂2411 与第四负极端子218插接，高压公插片245的接触臂2451与第一正极端子211插接，如图19所示，能量存储装置100通过两个电压输出部2412、2452，为该高压电动工具输出4nV电压。
综上所述，本发明通过将四组电压相同的能量单元通过电极端子分别与低压插头、中压插头以及高压插头配合插接，使得所述四个能量单元相互并联输出低压、四个能量单元两两并联后串联或两两串联后并联输出中压或四个能量单元相互串联输出高压。如此设置，同一个所述能量存储装置可以选择性地为三种具有不同额定工作电压的电动工具供电，操作简便，使用成本降低。
以上实施例仅用于说明本发明而并非限制本发明所描述的技术方案，对本说明书的理解应该以所属技术领域的技术人员为基础，尽管本说明书参照上述的实施例对本发明已进行了详细的说明，但是，本领域的技术人员应当理解，所属技术领域的技术人员仍然可以对本发明进行修改或者等同替换，而一切不脱离本发明的精神和范围的技术方案及其改进，均应涵盖在本发明的权利要求范围内。

Claims (15)

  1. 一种能量存储装置，包括电压值相同的四个能量单元，每一所述能量单元设有正极及负极，其特征在于：所述能量存储装置包括插座，所述插座包括八个独立设置的电极端子，八个所述电极端子包括分别与四个所述能量单元的正极连接的四个正极端子及分别与四个所述能量单元的负极连接的四个负极端子。
  2. 根据权利要求1所述的能量存储装置，其特征在于：每一所述电极端子设有由两个弧形弹性臂形成的接触部，所述插座还包括通讯端子及充电端子。
  3. 根据权利要求1所述的能量存储装置，其特征在于：八个所述电极端子均分设置为上、下两排，上下位置对应的两个所述电极端子的极性相同且相应两接触部上下对齐。
  4. 根据权利要求3所述的能量存储装置，其特征在于：位于两外侧的四个所述电极端子与其中两个所述能量单元的正极及负极分别对应连接，位于内侧的四个所述电极端子与另外两个所述能量单元的正极及负极分别对应连接。
  5. 根据权利要求4所述的能量存储装置，其特征在于：位于上排的四个所述电极端子依次为第四负极端子、第二负极端子、第三正极端子和第一正极端子，位于下排的四个所述电极端子依次为第一负极端子、第三负极端子、第二正极端子和第四正极端子。
  6. 根据权利要求1所述的能量存储装置，其特征在于：八个所述电极端子排列为一排，依次为第四负极端子、第三负极端子、第二负极端子、第一负极端子、第二正极端子、第三正极端子、第四正极端子及第一正极端子。
  7. 一种电动工具***，其特征在于：所述电动工具***包括电动工具及如权利要求1至6中任意一项所述的能量存储装置，所述电动工具设有与所述插座配合的插头，所述插头设有多个公端子，多个所述公端子与八个所述电极端子分别电性连接，使四个所述能量单元形成以下三种连接方式中的一种：a.四个所述能量单元并联，b.四个所述能量单元两两并联后串联或两两串联后并联，c.四个所述能量单元串联。
  8. 根据权利要求7所述的电动工具***，其特征在于：所述插头包括第一公插片和第二公插片，所述第一公插片连接四个所述能量单元的四个负极端子，所述第二公插片连接四个所述能量单元的四个正极端子。
  9. 根据权利要求8所述的电动工具***，其特征在于：所述第一公插片和所述第二公插片各自设有两个接触臂，每一所述接触臂与两个所述电极端子接触；或者所述第一公插片和所述第二公插片各自设四个接触臂；每一所述接触臂与一个所述电极端子接触。
  10. 根据权利要求6所述的电动工具***，其特征在于：所述插头包括第一公插片、第二公插片以及第三公插片，所述第一公插片连接对应其中两个能量单元的两个所述负极端子，所述第二公插片连接对应另外两个能量单元的两个所述正极端子，所述第三公插片连接剩余的四个所述电极端子。
  11. 根据权利要求10所述的电动工具***，其特征在于：所述第一公插片和所述第二公插片各自设有两个接触臂，所述第三公插片设有四个接触臂。
  12. 根据权利要求11所述的电动工具***，其特征在于：所述第三公插片的四个所述接触臂位于一排。
  13. 根据权利要求6所述的电动工具***，其特征在于：所述插头包括第一公插片、第二公插片、第三公插片、第四公插片及第五公插片，所述第一公插片连接对应其中一个所述能量单元的负极端子，所述第五公插片连接对应另一个所述能量单元的正极端子，所述第二公插片、所述第三公插片及所述第四公插片串联剩余的六个所述电极端子。
  14. 根据权利要求13所述的电动工具***，其特征在于：所述第一公插片和所述第五公插片各自设有一个接触臂，所述第二公插片、所述第三公插片及所述第四公插片各设有分别连接不同所述电极的两个接触臂。
  15. 一种电动工具***，包括低压电动工具、中压电动工具及高压电动工具，其特征在于：所述电动工具***还包括如权利要求1至6所述的能量存储装置，所述低压电动工具设有低压插头，所述低压插头与所述插座对接并使四个所述能量单元处于全并联状态；所述高压电动工具设有高压插头，所述高压插头与 所述插座对接并使四个个所述能量单元处于全串联状态；所述中压电动工具设有中压插头，所述中压插头与所述插座对接并使四个所述能量单元处于一中压状态。
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