WO2020125211A1 - 电能储存装置及电动工具系统 - Google Patents

电能储存装置及电动工具系统 Download PDF

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Publication number
WO2020125211A1
WO2020125211A1 PCT/CN2019/114237 CN2019114237W WO2020125211A1 WO 2020125211 A1 WO2020125211 A1 WO 2020125211A1 CN 2019114237 W CN2019114237 W CN 2019114237W WO 2020125211 A1 WO2020125211 A1 WO 2020125211A1
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WO
WIPO (PCT)
Prior art keywords
parallel
switch
series
module
voltage
Prior art date
Application number
PCT/CN2019/114237
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 CN201811564279.0A external-priority patent/CN109599526B/zh
Priority claimed from CN201811564074.2A external-priority patent/CN109360929A/zh
Priority claimed from CN201822146597.7U external-priority patent/CN209217097U/zh
Priority claimed from CN201822145919.6U external-priority patent/CN209200050U/zh
Priority claimed from CN201822145933.6U external-priority patent/CN209282869U/zh
Priority claimed from CN201811564236.2A external-priority patent/CN109473616A/zh
Priority claimed from CN201811566089.2A external-priority patent/CN109360930A/zh
Priority claimed from CN201822146585.4U external-priority patent/CN209200051U/zh
Priority claimed from CN201822146566.1U external-priority patent/CN209217096U/zh
Application filed by 常州格力博有限公司 filed Critical 常州格力博有限公司
Priority to AU2019400237A priority Critical patent/AU2019400237A1/en
Priority to EP19900431.8A priority patent/EP3890146A4/en
Publication of WO2020125211A1 publication Critical patent/WO2020125211A1/zh
Priority to US17/349,923 priority patent/US20210313614A1/en

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    • 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 technical field of electric tools, and in particular to an electric energy storage device and an electric tool using the electric energy storage device.
  • An object of the present invention is to provide an electric energy storage device capable of providing three output voltages and an electric tool system using the electric energy storage device.
  • An electric energy storage device includes four energy units with the same rated voltage, four of the energy units are equally divided into two energy modules, and the electric energy storage device has a positive electrode And the negative electrode, the electrical energy storage device is provided with a socket, the socket includes two voltage output terminals respectively connected to the positive electrode and the negative electrode; the socket is further provided with an in-module control part corresponding to each of the energy modules , The in-module control unit controls the two energy units in the energy module in a parallel or series connection state, and can switch between the parallel and series connection states; the socket is also provided with an inter-module control unit The inter-module control unit controls the two energy modules in a parallel or series connection state, and can switch between the parallel and series connection states.
  • the socket is provided with two control units in the module, each control unit in the module is provided with two parallel switches and one series switch, and the two parallel switches are connected in parallel to the Two of the energy units, the series switch connects the two energy units in the energy module in series, in the initial state, one of the parallel switch and the series switch of the control unit in the module is in On state, the other is in off state.
  • the inter-module control unit is provided with two parallel switches connecting two energy modules in parallel and one series switch connecting two energy modules in series. In the initial state, the inter-module control unit One of the parallel switch and the series switch is in an on state, and the other is in an off state.
  • the series switch or the parallel switch in the control section in the module are individually arranged in a row; the series switch in the control section in the module is arranged in a row, and the two parallel switches It is arranged in another column; or the two parallel switches and the series switches of the control part in the module are arranged in one column.
  • the four parallel switches of the two control sections in the module are arranged in a row; or the four parallel switches and the two series switches of the two control sections in the module are arranged in The same column.
  • the series switch or the parallel switch in the inter-module control section are each separately arranged in a row; the series switch in the inter-module control section is arranged in a row, and the two parallel switches It is arranged in another column; or the two parallel switches and the series switches of the inter-module control unit are arranged in one column.
  • the six parallel switches and three series switches of the in-module control unit and the inter-module control unit are laterally arranged in two to three rows.
  • each of the parallel switch and the series switch is provided with two parts separated left and right, and each part is provided with a contact arm, in which the parallel switch or the series switch The contact arms are in contact with each other, wherein the two contact arms of the parallel switch or the series switch in the off state are separated from each other.
  • An electric tool system includes an electric tool and the foregoing electric energy storage device.
  • the electric tool is provided with a plug docking with the socket, and the plug is provided with two Two connecting pieces that are electrically connected to the voltage terminals respectively.
  • the plug is provided with an internal switching part that cooperates with the control part in the module, and one of the parallel switch and the series switch of the control part in the module is a normally closed switch, The other is a normally open switch.
  • the inner switching part includes an insulating part that opens the normally closed switch and a conductive part that conducts the normally open switch, so as to change the two energy units in the energy module from parallel to series or Change from series to parallel.
  • the plug is provided with an external switching part that cooperates with the inter-module control part.
  • One of the parallel switch and the serial switch of the inter-module control part is a normally closed switch, and the other One is a normally open switch, and the outer switching part includes an insulating part that opens the normally closed switch and a conductive part that conducts the normally open switch, so as to change the parallel connection between the two energy modules in series or in series in parallel.
  • a plurality of the conductive parts are provided in an integrated structure, respectively in contact with a plurality of normally open switches located in the same row, and an insulating partition is provided between adjacent conductive parts; or the conductive parts and The insulating part is provided as an integral structure, and is in contact with the normally open switch and the normally closed switch located in the same row, respectively.
  • An electric tool system includes a low-voltage electric tool, a medium-voltage electric tool, a high-voltage electric tool, and the foregoing electrical energy storage device.
  • the low-voltage electric tool is provided with a low-voltage plug.
  • the low-voltage plug is docked with the socket and four energy units are in full parallel;
  • the high-voltage power tool is provided with a high-voltage plug, the high-voltage plug is docked with the socket and four energy units are in Full-series state;
  • the medium-voltage power tool is provided with a medium-voltage plug, the medium-voltage plug is docked with the medium-voltage socket, and the four energy units are in series after being connected in parallel or in series Pressure state.
  • the power tool system further includes a low voltage battery pack mated with the low voltage power tool, a medium voltage battery pack mated with the medium voltage power tool, or a high voltage mated with the high voltage power tool Battery pack.
  • the beneficial effect of the present invention is that the electric energy storage device of the present invention has multiple output voltages, which increases the applicable range of the electric energy storage device and reduces the use cost.
  • FIG. 1 is a connection schematic diagram of four energy units of an electric energy storage device in Embodiment 1.
  • FIG. 1 is a connection schematic diagram of four energy units of an electric energy storage device in Embodiment 1.
  • FIG. 2 is a schematic diagram of initial circuit connections of four energy units of the electric energy storage device in the first embodiment.
  • FIG. 3 is a terminal arrangement diagram of the electric energy storage device in the first embodiment.
  • FIG. 4 is a connection schematic diagram of the electric energy storage device and the low-voltage plug in the first embodiment.
  • FIG. 5 is a schematic structural view of a low-voltage plug that cooperates with an electric energy storage device in Embodiment 1.
  • FIG. 5 is a schematic structural view of a low-voltage plug that cooperates with an electric energy storage device in Embodiment 1.
  • FIG. 6 is a schematic diagram of the electric energy storage device and the low-voltage plug in the first embodiment.
  • FIG. 7 is a schematic circuit diagram of the electrical energy storage device and the low-voltage plug in the first embodiment.
  • FIG. 8 is a schematic view of the structure in which the insulating portion and the conductive portion of the low-voltage plug are all integrated.
  • FIG. 9 is a schematic structural view of an integrally provided insulating part of a low-voltage plug and an integrally provided conductive part.
  • FIG. 10 is a connection schematic diagram of the electric energy storage device and the medium voltage plug in the first embodiment.
  • FIG. 11 is a schematic structural diagram of a medium-voltage plug matched with an electric energy storage device in Embodiment 1.
  • FIG. 11 is a schematic structural diagram of a medium-voltage plug matched with an electric energy storage device in Embodiment 1.
  • FIG. 12 is a schematic diagram of the electrical energy storage device and the medium voltage plug in the first embodiment.
  • FIG. 13 is a schematic circuit diagram of the electrical energy storage device and the medium voltage plug in the first embodiment.
  • FIG. 14 is a schematic view of the structure in which the insulating part and the conductive part of the control part in the module of the medium-voltage plug are integrally provided.
  • 15 is a schematic view of the structure in which the conductive parts of the control part in the module of the medium voltage plug are integrally provided.
  • FIG. 16 is a schematic structural diagram of the electrical energy storage device and the high-voltage plug in the first embodiment.
  • 17 is a schematic diagram of the connection of four energy units of the electrical energy storage device in the second embodiment.
  • 18 is a schematic diagram of the initial circuit connection of the four energy units of the electric energy storage device in the second embodiment.
  • FIG. 19 is a terminal arrangement diagram of the electric energy storage device in the second embodiment.
  • FIG. 20 is a schematic structural diagram of the electric energy storage device and the low-voltage plug in the second embodiment.
  • FIG. 21 is a connection schematic diagram of the electric energy storage device and the medium voltage plug in the second embodiment.
  • FIG. 22 is a schematic structural view of a medium-voltage plug that cooperates with an electric energy storage device in Embodiment 2.
  • FIG. 23 is a schematic diagram of the electric energy storage device and the medium-voltage plug in the second embodiment.
  • FIG. 24 is a schematic circuit diagram of the electric energy storage device and the medium voltage plug in the second embodiment.
  • FIG. 25 is a connection schematic diagram of the electric energy storage device and the high-voltage plug in the second embodiment.
  • FIG. 26 is a schematic structural diagram of a high-voltage plug that cooperates with an electric energy storage device in Embodiment 2.
  • FIG. 26 is a schematic structural diagram of a high-voltage plug that cooperates with an electric energy storage device in Embodiment 2.
  • FIG. 27 is a schematic diagram of the electric energy storage device and the high-voltage plug in the second embodiment.
  • FIG. 28 is a circuit schematic diagram of the electric energy storage device and the high-voltage plug in the second embodiment.
  • FIG. 29 is a schematic view of a structure in which an insulating portion and a conductive portion are integrally provided.
  • FIG. 30 is a schematic diagram of the connection of the four energy units of the electric energy storage device in the third embodiment.
  • FIG. 31 is a schematic diagram of initial circuit connections of four energy units of the electric energy storage device in Embodiment 3.
  • FIG. 31 is a schematic diagram of initial circuit connections of four energy units of the electric energy storage device in Embodiment 3.
  • FIG. 32 is a terminal arrangement diagram of the electric energy storage device in the third embodiment.
  • 33 is a schematic diagram of the connection of the electric energy storage device and the low-voltage plug in the third embodiment.
  • FIG. 34 is a schematic structural diagram of a low-voltage plug that cooperates with an electric energy storage device in Embodiment 3.
  • FIG. 35 is a schematic cross-sectional view of the electric energy storage device and the low-voltage plug in the third embodiment.
  • 36 is a schematic circuit diagram of the electric energy storage device and the low-voltage plug in the third embodiment.
  • FIG. 37 is a schematic view of the structure in which the insulating portion and the conductive portion of the low-voltage plug are integrally provided.
  • FIG. 38 is a schematic structural view of the integrated arrangement of the conductive parts of the low-voltage plug.
  • FIG. 39 is a schematic structural diagram of the electric energy storage device and the medium-voltage plug in the third embodiment.
  • FIG. 40 is a connection schematic diagram of the electric energy storage device and the high-voltage plug in the third embodiment.
  • 41 is a schematic structural diagram of a high-voltage plug that cooperates with an electric energy storage device in Embodiment 3.
  • FIG. 42 is a schematic diagram of the electric energy storage device and the high-voltage plug in the third embodiment.
  • FIG. 43 is a circuit schematic diagram of the electric energy storage device and the high-voltage plug in the third embodiment.
  • FIG. 44 is a schematic structural view of the insulating portion and the conductive portion of the high-voltage plug in the third embodiment are integrally provided.
  • the invention provides an electric energy storage device, including four energy units with equal voltages, and the four energy units can provide three output voltages through series-parallel combination.
  • Energy unit refers to an object that can provide electrical energy, such as batteries, lithium batteries, or other energy carriers.
  • the batteries include but are not limited to lithium batteries , Nickel-metal hydride batteries, cadmium nickel batteries and other rechargeable batteries.
  • the rated voltage of the four energy units is nV. It should be noted that the measured voltage of each energy unit of n ⁇ 5%V can be regarded as equal.
  • the four energy units are equally divided into two energy modules, the circuit connection between the two energy units in each energy module has two optional states of parallel and series, and the circuit between the two energy modules There are also two options for connection, parallel and series. Therefore, the four energy units of the electrical energy storage device have the following four connection states: 1. The two energy units in the energy module are connected in parallel, and the two energy modules are connected in parallel, so that all four energy units are connected in parallel, this state It can be referred to as the full parallel state, and the output voltage is nV; 2. The two energy units in the energy module are connected in series, and the two energy modules are connected in series, so that all four energy units are connected in series. This state can be referred to as the full series state.
  • the output voltage is 4*nV; 3.
  • the two energy units in the energy module are connected in series, and the two energy modules are connected in parallel.
  • This state can be referred to as the internal and external parallel state, and the output voltage is 2*nV; 4.
  • Energy The two energy units in the module are connected in parallel, and the two energy modules are connected in series.
  • This state can be referred to as the internal and external serial state, and the output voltage is also 2*nV.
  • the third and fourth output voltages are the same, so the electrical energy storage device can output three kinds of rated voltages.
  • other connection states can be switched by the corresponding plugs.
  • all energy units are involved in the work.
  • the four energy units of the electrical energy storage device are divided into an energy module 10 a and an energy module 20 a, and each energy module 10 a and 20 a includes two energy units.
  • the electrical energy storage device is provided with a socket, which has two voltage output terminals corresponding to the total positive and total negative electrodes connected in parallel or in series with the two energy modules 10a, 20a, respectively a positive terminal 101a and a negative terminal 102a.
  • the socket (not shown) of the electrical energy storage device also includes two intra-module control sections and an inter-module control section.
  • the two intra-module control sections are used to control the two energy units in each energy module 10a, 20a, respectively.
  • the inter-module control unit controls the connection state between the energy modules 10a and 20a.
  • the in-module control unit corresponding to the energy module 10a includes a first series switch 41a, a first parallel switch 31a, and a second parallel switch 32a.
  • the in-module control unit corresponding to the energy module 20a includes a second series switch 42a, a third parallel switch 33a, and a fourth parallel switch 34a.
  • the connection mode between the control unit in each module and the two energy units in the energy modules 10a and 20a is the same. The following will take the control unit in the module corresponding to the energy module 10a as an example for description.
  • the first series switch 41a, the first parallel switch 31a, and the second parallel switch 32a each include two contacts (not labeled) connected to the electrodes of the energy unit, and the two contacts of the first parallel switch 31a and the second parallel switch 32a
  • the two parts are respectively connected to electrodes of the same polarity of the two energy units in the energy module 10a.
  • the two contact parts of the first parallel switch 31a are respectively connected to the negative poles of the two energy units.
  • the two contact portions of the parallel switch 32a are respectively connected to the positive poles of the two energy units, that is, the first parallel switch 31a and the second parallel switch 32a connect the two energy units in the energy module 10a in parallel.
  • the two contact portions of the first series switch 41a are respectively connected to electrodes of opposite polarities of two energy cells, and the other two electrodes of opposite polarities of the two energy cells are respectively connected to the aforementioned voltage output terminals 101a and 102a, that is, The first series switch 41a connects two energy units in the energy module 10a in series.
  • the in-module control unit corresponding to the energy module 20a has a second series switch 42a, a third parallel switch 33a, and a fourth parallel switch 34a, where the second series switch 42a connects two energy units in the energy module 20a, and the third parallel switch 33a The fourth parallel switch 34a parallels the two energy units in the energy module 20a.
  • each energy module 10a, 20a as a whole is provided with a positive , Negative two electrodes.
  • the inter-module control unit includes a third series switch 43a, a fifth parallel switch 35a, and a sixth parallel switch 36a.
  • the two contact parts of the fifth parallel switch 35a and the sixth parallel switch 36a are respectively connected to the two The electrodes of the energy modules 10a and 20a have the same polarity. For example, as shown in FIG.
  • the two contact parts of the fifth parallel switch 35a are respectively connected to the two positive poles of the two energy modules 10a and 20a, and the sixth parallel switch 36a
  • the two contacts are respectively connected to the two negative poles of the two energy modules 10a, 20a, that is, the parallel switches 35a, 36a connect the two energy modules 10a, 20a in parallel;
  • the two contacts of the third series switch 43a are respectively connected to the two energy modules 10a
  • the two electrodes with opposite polarities of 20a are connected, that is, the third series switch 43a connects two energy modules 10a and 20a in series.
  • Two other electrodes with opposite polarities in the two energy modules 10a, 20a are respectively connected to the aforementioned voltage output terminals 101a, 102a as an output structure.
  • one of the series switch and the parallel switch of the control part in each module is in an on state, and the other is in an off state.
  • the four parallel switches 31a, 32a, 33a, 34a of the control unit in the module are normally open switches in the off state
  • the two series switches 41a, 42a of the control unit in the modules are normally closed switches in the on state So that the two energy units in the energy modules 10a and 20a are initially connected in series.
  • one of the series switch and the parallel switch of the control part in each module is in an on state, and the other is in an off state.
  • the parallel switches 35a and 36a of the inter-module control unit are normally open switches in the off state
  • the series switch 33a of the inter-module control units are normally closed switches in the on state
  • the energy modules 10a and 20a are initially It is in series connection. Therefore, the energy unit of the electric energy storage device at the initial stage is in a series state, and the output voltage is 4nV.
  • FIG. 2 is a corresponding circuit diagram.
  • Each switch includes two parts separated left and right. Each part includes a main body and a contact arm extending forward from the main body. The two contact arms together form a contact portion.
  • the series switch is a normally closed switch, that is, the two contact arms of the series switch are in contact conduction state;
  • the parallel switch is a normally open switch, that is, the two contact arms of the parallel switch are in non-contact disconnection state.
  • the three series switches 41a, 42a, 43a and the six parallel switches 31a, 32a, 33a, 34a, 35a, 36a of the control section in the two modules and the control section between the modules It is arranged in the front and rear rows, three series switches 41a, 42a, 43a are located in the front row, and six parallel switches 31a, 32a, 33a, 34a, 35a, 36a are located in the rear row, and are arranged horizontally in sequence, each in the left and right direction
  • the series switches 41a, 42a, 43a and each series switch 31a, 32a, 33a, 34a, 35a, 36a are independently set in a row, wherein each series switch 41a, 42a, 43a is located in the corresponding two parallel switches 31a, 32a, 33a , 34a, 35a, 36a.
  • the two voltage output terminals of the electric energy storage device are arranged in a row up and down, which are a positive terminal 101a provided on the upper side and a negative terminal 102a provided on the lower side, respectively.
  • the two voltage output terminals 101a, 102a may also be arranged back and forth or left and right.
  • a low-voltage power tool (not shown) has an operating voltage of nV and has a low-voltage plug (not shown) that is compatible with the plug of the electrical energy storage device.
  • the low-voltage plug is provided with two connection pieces 71a, 72a of a single-piece structure, and the two connection pieces 71a, 72a are respectively connected to the two voltage output terminals 101a, 102a to cooperate.
  • the low-voltage plug is also provided with two internal switching parts corresponding to the control parts in each module, respectively, for switching the control part of the module to control the connection state of the two energy units in the energy modules 10a and 20a.
  • the low-voltage plug is also provided with an external switching part corresponding to the inter-module control part for switching the control of the connection state between the energy modules 10a and 20a by the inter-module control part.
  • Each switching part corresponds to a normally closed switch provided to disconnect the insulation of the two contact arms, and a correspondingly provided to the normally open switch to conduct the two contact arms to achieve the function of switching state.
  • the two parallel switches of the control part in the module are normally open switches, and the series switch is a normally closed switch.
  • the inner switching part of the control part in the module corresponding to the energy module 10a is provided with a first insulating part 51a 1.
  • the first conductive portion 61a and the second conductive portion 62a; the internal switching portion of the in-module control portion corresponding to the energy module 20a includes a second insulating portion 52a, a third conductive portion 63a, and a fourth conductive portion 64a.
  • the two parallel switches of the inter-module control unit are normally open switches, and the series switches are normally closed switches.
  • the outer switching unit is correspondingly provided with a third insulating portion 53a, a fourth conductive portion 65a, and a third Five conductive parts 66a.
  • Each insulating part and conductive part correspond to the arrangement of the corresponding parallel switches and series switches.
  • the two internal switching parts cooperate with the two module internal control parts
  • the first insulating part 51a is inserted between the two contact parts of the first series switch 41a
  • the second insulating part 52a is inserted into the first Between the two contact parts of the two series switches 42a to disconnect the first series switch 41 and the second series switch 42;
  • the first conductive part 61a is inserted between the two contact parts of the first parallel switch 31a
  • the second The conductive portion 62a is inserted between the two contact portions with the second parallel switch 32a
  • the third conductive portion 63a is inserted between the two contact portions with the third parallel switch 33a
  • the fourth conductive portion 64a is inserted with the fourth parallel switch 34a
  • the two internal switching parts respectively connect the two energy modules 10a
  • the two energy units in 20a are changed from series to parallel.
  • the external switching part cooperates with the inter-module control part, the third insulating part 53a is inserted between the two contact parts of the third series switch 43a to disconnect the third series switch 43a, and the fifth conductive part 65a is inserted into the fifth parallel switch Between the two contacts of 35a.
  • the sixth conductive portion 66a is inserted between the two contact portions of the sixth parallel switch 36a, so that the fifth parallel switch 35a and the sixth parallel switch 36a are turned on, that is, the external switching portion connects the two energy modules 10a, 20a by The series is changed to parallel, so all four energy units are connected in parallel, outputting low voltage nV to low voltage power tools.
  • the circuit diagram is shown in Figure 7.
  • the arrangement of the parallel switch and the series switch in this embodiment can be arranged as needed, and should not be limited to this.
  • the four parallel switches 31a, 32a, 33a, 34a of the control section in two modules can be arranged in a row
  • the two series switches 41a, 42a of the control section in two modules can be arranged in a row.
  • Two parallel switches 35a, 36a are arranged in a row, and the series switch 43a of the inter-module control unit is arranged in a row; or the parallel switches 31a, 32a, 33a, 34a of the control unit in the two modules are arranged in a row, and the two modules are controlled
  • first, second, third, fourth, fifth, and sixth are not limitations on the number, but merely a description of the corresponding relationship.
  • the arrangement of the conductive part and the insulating part can be based on the electrical energy
  • the terminal arrangement of the storage device is set accordingly.
  • the first to sixth conductive parts 61a, 62a, 63a, 64a, 65a, and 66a are independently provided; each conductive part and each insulating part may also be integrated into one Insert 50a, as shown in FIG.
  • conductive parts 61a, 62a, 63a, 64a, 65a, 66a can be integrally provided as another insert 50a, made of insulating material between adjacent conductive parts
  • the three insulating parts can be provided integrally, as shown in FIG. 9; or the three insulating parts can be provided integrally; or part of the conductive parts can be provided integrally, and the remaining ones can be provided integrally or separately.
  • a partition made of insulating material is provided between the parts.
  • the arrangement of the insulating part and the conductive part can be set according to the arrangement of the normally open switch and the normally closed switch on the electrical energy storage device, and the arrangement method changes variously, which are not listed here one by one, those skilled in the art should understand that Changes in the distribution method are within the scope of protection of this patent.
  • a medium-voltage power tool (not shown) having an operating voltage of 2nV and having a medium-voltage plug (not shown) that is compatible with the plug of the electric energy storage device.
  • the medium voltage plug is provided with two internal switching parts that cooperate with the control part in the module and two connection pieces 71b, 72b that cooperate with the two voltage output terminals 101, 102.
  • the internal switching part of the medium-voltage plug is basically the same as the internal switching part of the aforementioned low-voltage plug, and is provided corresponding to the control part in the module for switching the state of the control part in each module.
  • the internal switching part corresponding to the internal control part of the energy module 10a includes a first insulating part 51b, a first conductive part 61b and a second conductive part 62b; the internal switching part corresponding to the internal control part of the energy module 20a includes a second insulating part The portion 52b, the third conductive portion 63b, and the fourth conductive portion 64b.
  • the two internal switching parts cooperate with the two module internal control parts, respectively, so that the two energy units in the two energy modules 10a and 20a are changed from series to parallel.
  • the two energy modules 10a and 20a are connected in series, the circuit diagram of the connection of the four energy units is shown in FIG. 13, and the medium voltage 2nV is output to the medium voltage power tool in the electric energy storage device.
  • an insulating portion is provided corresponding to a normally closed switch
  • a conductive portion is provided corresponding to a normally open switch.
  • the four conductive parts 61b, 62b, 63b, 64b and the two insulating parts 51b, 52b of the two inner switching parts of the medium-voltage plug can be arranged in various forms according to the terminal arrangement of the energy storage device, for example, four The conductive parts 61b, 62b, 63b, 64b and the two insulating parts 51b, 52b can all be integrally provided as a connector 50b, as shown in FIG. 14; or the four conductive parts 61b, 62b, 63b, 64b can be integrally provided as another In the plug 50b, a partition 50 made of an insulating material is provided between the adjacent conductive parts 61b, 62b, 63b, 64b, as shown in FIG.
  • the four conductive parts 61b, 62b, 63b, 64b are all Separately, as shown in FIG. 12; or the two insulating portions 51b, 52b can be separately provided, as shown in FIG. 12; of course, the two insulating portions 51b, 52b can also be provided integrally.
  • the arrangement of the insulating part and the conductive part of the inner switching part can be set according to the arrangement of the normally open switch and the normally closed switch on the electrical energy storage device, and the arrangement method varies in various ways, which are not listed here one by one. It should be understood that changes in arrangement are within the scope of protection of this patent.
  • a high-voltage power tool (not shown) has an operating voltage of 4 nV and has a high-voltage plug (not shown) that is compatible with the plug of the electrical energy storage device.
  • the high-voltage plug is provided with two connecting pieces 71c and 72c respectively matched with the two voltage output terminals 101 and 102.
  • the two energy units in the energy modules 10a and 20a of the electrical energy storage device are connected in series through the in-module control unit, and the two energy modules 10 and 20 are connected in series through the inter-module control unit.
  • the circuit connection of the unit is shown in Fig. 2, its voltage is 4nV. Therefore, it is only necessary to connect the two connecting pieces 71c and 72c on the high-voltage plug to the two voltage output terminals 101 and 102 respectively to realize the output of high-voltage 4nV to the high-voltage power tool.
  • the electric energy storage device of the present invention also provides the second embodiment.
  • the electric energy storage device in the second embodiment also includes four energy units with equal voltage, and the voltage of each energy unit is nV 4 energy units are equally divided into two energy modules 10d, 20d, each energy module 10d, 20d includes two energy units, the electrical energy storage device can also provide three kinds of output voltage.
  • the electrical energy storage device is provided with a socket.
  • the socket has two voltage output terminals corresponding to the total positive and total negative electrodes connected in parallel or in series with the two energy modules 10d and 20d, respectively a positive terminal 101d and a negative terminal 102d.
  • the socket also includes two intra-module control sections and an inter-module control section.
  • the intra-module control section is used to control the connection status of the two energy units in each energy module 10d, 20d
  • the inter-module control section is used to control the energy module 10d.
  • the connection status between 20d includes two parallel switches 41d, 42d and series switches 31d;
  • the internal energy control module corresponding to the energy module 20d includes two parallel switches 43d, 44d and serial switches 32d;
  • the inter-module control part includes two A parallel switch 45d, 46d and a series switch 33d.
  • the specific connection method of each switch is the same as the connection method of each switch in the first embodiment, and reference may be made to the first embodiment, which will not be repeated here.
  • the parallel switches 41d, 42d, 43d, 44d, 45d, 46d are normally closed switches, and the series switches 31d, 32d, 33d are normally open switches. Therefore, initially, the energy module 10d , Two energy units in 20d are connected in parallel, two energy modules 10d and 20d are connected in parallel, all four energy units are connected in parallel, and the voltage nV is output through the voltage terminals 101d and 102d, as shown in FIG.
  • each series switch or each parallel switch is basically the same as that in the first embodiment. Refer to the description in the first embodiment.
  • Each switch includes two separately arranged contact arms.
  • the two parallel switches The contact arm is conductive, and the two contact arms of the series switch are disconnected without contact.
  • the arrangement of the switches is also different from that in the first embodiment.
  • the three series switches 31d, 32d, and 33d and the six parallel switches 41d, 42d, 43d, 44d, 45d, and 46d of the intra-module control unit and the inter-module control unit are arranged in multiple rows in the front-rear direction.
  • the two parallel switches 41d and 42d are located in a row, the two parallel switches 43d and 44d are located in a row, and the two parallel switches 45d and 46d are located in a row; the three series switches 31d, 32d and 33d are each in a row and arranged in parallel
  • the switches 41d, 42d, 43d, 44d, 45d, and 46d are rearward, and are interleaved with the three rows formed by the parallel switches 41d, 42d, 43d, 44d, 45d, and 46d in the left and right directions, and the series switch 31d is located on the leftmost side. a row.
  • the voltage output terminals 101d and 102d are located in the rightmost column.
  • a low-voltage power tool (not shown) has an operating voltage of nV and has a low-voltage plug (not shown) that is compatible with the plug of the electrical energy storage device.
  • the low-voltage plug is provided with two connecting pieces 71d and 72d.
  • the connecting pieces 71d and 72d cooperate with the two voltage output terminals 101d and 102d respectively, the two energy units in the energy modules 10d and 20d remain in parallel, and the two energy modules 10d and 20d remain in parallel, which can output nV to low-voltage power tools .
  • a medium-voltage power tool (not shown) with an operating voltage of 2nV and a medium-voltage plug (not shown) that is compatible with the plug of the electric energy storage device.
  • the medium-voltage plug is provided with two connection pieces 71e and 72e that cooperate with the two output terminals 101d and 102d.
  • the medium-voltage plug is also provided with an internal switching part that cooperates with the control part in the module for switching the control of the connection state of the two energy units in the energy modules 10d and 20d by the control part in the module.
  • the internal switching part includes two insulating parts and one conductive part.
  • the internal switching part corresponding to the module internal control part of the energy module 10d includes a conductive part 61e and two insulating parts 51e, 52e; corresponding
  • the internal switching part of the module internal control part of the energy module 10d includes a conductive part 62e and two insulating parts 53e, 54e.
  • Each insulating part and conductive part correspond to the arrangement of the corresponding parallel switches and series switches. Based on the two parallel switches 41d and 42d in one row, the two insulating parts 51e and 52e are integrated in one row and based on the two parallel switches 43d and 44d in In one row, the two insulating portions 53e and 54e are integrally provided in one row.
  • the insulating parts 51e, 52e, 53e, and 54e respectively open the parallel switches 41d, 42d, 43d, and 44d; the conductive parts 61e and 62e respectively conduct the series switches 31d and 32d to make the energy module
  • the two energy units in 10d and 20d are changed from parallel to series.
  • the two energy modules 10d and 20d are kept in parallel.
  • the four energy units are connected in series and connected in parallel to output medium voltage 2nV to the medium voltage power tool.
  • the connection circuit diagram is shown in Figure 24.
  • an insulating portion is provided for each normally closed switch, and a conductive portion is provided for each normally open switch.
  • two or four here are not a limitation on the number, but merely a description of the corresponding relationship.
  • the arrangement of the conductive part and the insulating part may be correspondingly set according to the terminal arrangement of the electrical energy storage device, the conductive part 61e 62e can be provided separately, as shown in FIG. 23; of course, the conductive parts 61e, 62e can also be provided integrally, and an insulating partition made of an insulating material is provided between adjacent conductive parts to avoid short circuits.
  • the insulating parts 51e, 52e, 53e, 54e may be provided integrally, or all of them may be provided separately, or part of the insulating parts may be provided integrally, and some of the insulating parts may be provided separately.
  • the insulating parts 51e, 52e are provided integrally, and the insulating parts 53e, 54e It is set as a whole, and two sets are set as one, as shown in Figure 23.
  • the conductive part and the insulating part may also be provided integrally, for example, one section is an insulating part made of insulating material, and one section is a conductive part made of conductive material.
  • the arrangement of the insulating part and the conductive part can be set according to the arrangement of the normally open switch and the normally closed switch on the electrical energy storage device, and the arrangement method changes variously, which are not listed here one by one, those skilled in the art should understand that Changes in the distribution method are within the scope of protection of this patent.
  • a high-voltage power tool (not shown) has an operating voltage of 4nV and has a high-voltage plug (not shown) that is compatible with the plug of the electric energy storage device.
  • the high-voltage plug is provided with two connection pieces 71b and 72b respectively matched with the two output terminals 101d and 102d.
  • the high-voltage plug is also provided with an internal switching part that cooperates with the control part in the module for switching the control of the connection state of the two energy units in the energy modules 10d and 20d by the control part in the module.
  • the internal switching part includes two insulating parts and one conductive part.
  • the internal switching part corresponding to the module internal control part of the energy module 10d includes a conductive part 61f and two insulating parts 51f and 52f, corresponding to
  • the internal switching section of the module internal control section of the energy module 20d includes a conductive section 62f and two insulating sections 53f and 54f.
  • the structure of the internal switching unit is the same as that of the medium voltage plug, and will not be described in detail.
  • the high-voltage plug is also provided with an external switching part that cooperates with the inter-module control part for switching the control of the connection state between the energy modules 10d and 20d by the inter-module control part.
  • the external switching portion includes a conductive portion 63f and two insulating portions 55f, 56f.
  • the external switching part cooperates with the control part between the modules, the insulating parts 55f and 56f turn off the parallel switches 45d and 46d, and the conductive part 63f turns on and connects the series switch 33d so that the two energy modules 10d and 20d are changed from parallel to series.
  • the arrangement of the conductive part and the insulation part can be correspondingly set according to the terminal arrangement of the electrical energy storage device.
  • the conductive parts 61f, 62f, 63f and the insulating parts 51f, 52f, 53f, 54f, 55f, 56f can be provided integrally, as shown in FIG. 29; the conductive parts and the insulating parts can be provided separately, or part or all of the insulating parts can be provided One set.
  • the conductive parts may be provided separately, as shown in FIG. 27, or may be provided integrally.
  • the arrangement of the insulating part and the conductive part can be set according to the arrangement of the normally open switch and the normally closed switch on the electrical energy storage device, and the arrangement method changes variously, which are not enumerated here. Those skilled in the art should understand that Changes in the distribution method are within the scope of protection of this patent.
  • the electric energy storage device of the present invention also provides a third embodiment.
  • the electric energy storage device in the third embodiment also includes four energy units with equal voltage, and the voltage of each energy unit is nV 4 energy units are equally divided into two energy modules 10h, 20h, each energy module 10h, 20h includes two energy units, the electrical energy storage device can also provide three kinds of output voltage.
  • the electrical energy storage device is provided with a socket.
  • the socket has two voltage output terminals corresponding to the total positive and total negative electrodes connected in parallel or in series with the two energy modules 10d, 20d, respectively, a positive terminal 101h and a negative terminal 102h.
  • the socket also includes two intra-module control sections and an inter-module control section.
  • the intra-module control section is used to control the connection status of the two energy units within each energy module 10h, 20h, and the inter-module control section is used to control the energy module 10h. , 20h connection status.
  • the intra-module control section corresponding to the energy module 10h includes two parallel switches 31h, 32h and the series switch 41h, the intra-module control section corresponding to the energy module 20h includes two parallel switches 33h, 34h and the series switch 42h; the inter-module control section includes two A parallel switch 43h, 44h and a series switch 35h.
  • the specific connection method of each switch is the same as the connection method of each switch in the first embodiment, and reference may be made to the first embodiment, which will not be repeated here.
  • the parallel switches 31h, 32h, 33h, and 34h of the control section in the module are normally open switches, and the series switches 41h and 42h are normally closed switches.
  • the control unit in the module is similar to the first embodiment.
  • the parallel switches 43h and 44h of the inter-module control section are normally closed switches, and the series switch 35h is a normally open switch.
  • the energy modules 10h and 20h are connected in parallel, similar to the inter-module control section in the second implementation.
  • the four energy units are connected in series two by two in parallel, and the corresponding connection circuit diagram is shown in FIG. 31.
  • the control sections within the two modules and the control sections between the modules are arranged in the left-right direction.
  • the two series switches 41h, 42h of the control section in the two modules are located in the front row, and the four parallel switches 31h, 32h, 33h, 34h are arranged in the rear row; in the left-right direction, the series switch 41h is located between the two parallel switches 31h, 32h
  • the series switch 42h is located between the two parallel switches 33h and 34h.
  • the series switch 35h of the inter-module control unit is located in the rear row
  • the parallel switch 43h is located in the front row
  • the other parallel switch 44h and the parallel switch 43h are located in a row between the front and rear rows.
  • the switch arrangement of the control parts in the two modules is the same as that in the first embodiment, and reference can be made to the first embodiment.
  • the switch arrangement of the inter-module control unit is the same as that in the second embodiment, and reference may be made to the second embodiment.
  • a low-voltage power tool (not shown) has an operating voltage of nV and has a low-voltage plug (not shown) that is compatible with the plug of the electrical energy storage device.
  • the low voltage plug is provided with two connecting pieces 71h and 72h.
  • the connecting pieces 71h and 72h cooperate with the two voltage output terminals 101h and 102h.
  • the low-voltage plug is also provided with two internal switching parts that cooperate with the control part in the module.
  • the internal switching part corresponding to the energy module 10h includes an insulating part 51h and conductive parts 61h, 62h
  • the internal switching part corresponding to the energy module 20h includes an insulating part 52h and The conductive parts 63h and 64h, the insulating parts 51h and 52h respectively open the series switches 51h and 52h, and the conductive parts 61h, 62h, 63h and 64h respectively turn on the parallel switches 31h, 32h, 33h and 34h to make the energy modules 10h and 20h
  • the two energy units are changed from series to parallel.
  • Implementation 1 for the specific cooperation between the internal switching unit and the control unit in the module, refer to Implementation 1, which will not be repeated here.
  • the two energy modules 10h and 20h are maintained in parallel.
  • the energy storage device outputs nV to the low-voltage power tool.
  • the corresponding circuit diagram is shown in FIG. 36.
  • the arrangement of the conductive part and the insulation part can be correspondingly set according to the terminal arrangement of the electrical energy storage device.
  • the conductive part and the insulating part can be provided integrally, as shown in FIG. 37; the conductive part and the insulating part can be provided separately, as shown in FIG. 34; the insulating part can also be partly or wholly integrated; the conductive part can be provided separately, also It can be set integrally, as shown in Figure 38.
  • the arrangement of the insulating part and the conductive part can be set according to the arrangement of the normally open switch and the normally closed switch on the electrical energy storage device, and the arrangement method changes variously, which are not enumerated here. Those skilled in the art should understand that Changes in the distribution method are within the scope of protection of this patent.
  • a medium-voltage power tool (not shown) with an operating voltage of nV and a low-voltage plug (not shown) that is compatible with the plug of the electrical energy storage device.
  • the medium voltage plug is provided with two connection pieces 71i, 72i.
  • the two connecting pieces 71i and 72i cooperate with the two voltage output terminals 101h and 102h respectively.
  • the two energy units in the energy modules 10h and 20h remain in parallel, and the two energy modules 10h and 20h remain in parallel, which can directly output nV to Low-voltage power tools.
  • a high-voltage power tool (not shown) has an operating voltage of 4nV and has a high-voltage plug (not shown) that is compatible with the plug of the electric energy storage device.
  • the high-voltage plug is provided with two connecting pieces 71j and 72j that cooperate with the two output terminals 101h and 102h.
  • the high-voltage plug is also provided with an external switching part that cooperates with the control part between the modules for switching the connection state of the two energy units 10h and 20h in the control part between the modules.
  • the external switching portion includes a conductive portion 65j and two insulating portions 53j, 54j.
  • the external switching part When the high-voltage plug is mated with the socket, the external switching part cooperates with the control part between the modules, the insulating parts 53j and 54j turn off the parallel switches 43h and 44h, and the conductive part 65j turns on the series switch 35j to make the two energy modules 10h and 20h
  • the connection is changed from parallel to series, and the cooperation between the external switching unit and the control unit between the modules is the same as that in the second embodiment. Refer to the second embodiment.
  • the two energy units in the energy modules 10h and 20h remain connected in series. Therefore, the energy storage device outputs a high voltage of 4nV to the high-voltage power tool.
  • the corresponding connection circuit diagram is shown in FIG. 43.
  • the conductive part 65j and the two insulating parts 53j and 54j of the inter-module control part in this embodiment can be provided integrally, as shown in FIG. 44; the conductive part 65j and the two insulating parts 53j and 54j can also be separated Set up, as shown in Figure 41.
  • the two insulating portions 53j, 54j may be provided integrally, as shown in FIG. 41; the two insulating portions 53j, 54j may also be provided separately.
  • the arrangement of the insulating part and the conductive part can be set according to the arrangement of the normally open switch and the normally closed switch on the electrical energy storage device, and the arrangement method changes variously, which are not enumerated here. Those skilled in the art should understand that Changes in the distribution method are within the scope of protection of this patent.
  • the low-voltage power tool, the medium-voltage power tool, the high-voltage power tool and the electric energy storage device in any of the above embodiments may form a broader electric tool system.
  • the low-voltage plug of the low-voltage electric tool and the electric energy storage device The socket is docked and the four energy units are in full parallel state; the high voltage plug of the high voltage power tool is docked with the socket and the four energy units are in full series state; the medium voltage plug of the medium voltage power tool is docked with the socket and four The medium voltage state in which the energy units are connected in series two by two in parallel or in series after two in series.
  • the power tool system also includes a conventional low-voltage battery pack mated with a low-voltage power tool, a conventional medium-voltage battery pack mated with a medium-voltage power tool, or a conventional high-voltage battery pack mated with a high-voltage power tool.
  • Each conventional low-voltage battery pack is provided with a positive electrode and a negative electrode, which can be matched with two connecting pieces of low-voltage electric tools, medium-voltage electric tools and high-voltage electric tools, respectively.
  • the conventional low-voltage battery pack, the conventional medium-voltage battery pack and the conventional high-voltage battery pack each have a fixed output voltage value.
  • the normally closed switch in the first to third embodiments of the present invention means that in the initial state, the two contact parts are in contact state to realize that the electrodes electrically connected to the two contact parts are in the connected state, and
  • the electrical connection state of the two contact parts can be changed by the action of a foreign object, so that the two contact parts are switched from the contact state to the disconnected state, for example, a normally closed terminal.
  • Normally open switch means that in the initial state, its two contact parts are in a disconnected state to realize that the electrode electrically connected to the two contact parts is in a disconnected state, and the electric power of the two contact parts can be changed by the action of a foreign object
  • the state of sexual connection makes the two contact parts switch from the disconnected state to the connected state, for example, a normally open terminal.
  • the normally open switch is not limited to the normally open terminal, nor is the normally closed switch to the normally closed terminal, and the embodiments that can achieve the same function are within the scope of protection of the present invention.

Abstract

一种能量存储装置，包括四个额定电压相同的能量单元，四个能量单元均分成为两个能量模块，电能储存装置设有插座，插座包括分别与电能储存装置的正极及负极连接的两个电压输出端子。插座还对应每一个能量模块设置有模块内控制部，用于切换能量模块内的两个能量单元控制连接状态；插座还设有模块间控制部，用于切换两个能量模块之间的连接状态。一种使用该能量存储装置的电动工具系统，电动工具具有与插座对接的插头，插头设有模块内控制部或模块间控制部配合的切换部。该能量存储装置能够提供三种输出电压，可与多种额定电压不同的电动工具配合，增加了电能储存装置的适应性，降低了使用成本。

Description

电能储存装置及电动工具系统 技术领域
本发明涉及电动工具技术领域，尤其涉及一种电能储存装置及使用该电能储存装置的电动工具。
背景技术
在园林机械、动力工具行业，电动工具通常具有一个额定的工作电压，即，不同电压平台的整机需要不同电压平台的电池包来提供动力，如此，需要准备不同的电池包以适配不同额定工作电压的电动工具，增加了使用成本，造成了资源浪费。
有鉴于此，有必要设计一种改进的电能储存装置及使用该电能储存装置的电动工具，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电能储存装置及使用该电能储存装置的电动工具系统。
为实现上述发明目的，本发明提供如下技术方案，一种电能储存装置，包括四个额定电压相同的能量单元，四个所述能量单元均分成为两个能量模块，所述电能储存装置具有正极及负极，所述电能储存装置设有插座，所述插座包括分别与所述正极及所述负极连接的两个电压输出端子；所述插座还对应每一个所述能量模块设置有模块内控制部，所述模块内控制部将所述能量模块内的两个所述能量单元控制在并联或串联连接状态，并且能够在并联和串联连接状态之间切换；所述插座还设有模块间控制部，所述模块间控制部将两个所述能量模块之间控制在并联或串联连接状态，并且能够在并联和串联连接状态之间切换。
作为一个实施方式，所述插座设有两个所述模块内控制部，每一模块内控制部设置有两个并联开关及1个串联开关，两个所述并联开关并联所述能量模块内的两个所述能量单元，所述串联开关串联所述能量模块内的两个所述能量单元，初始状态时，所述模块内控制部的所述并联开关及所述串联开关中的一种处于导通状态，另一种为处于断开状态。
作为一个实施方式，所述模块间控制部设置有两个并联两个所述能量模块的并联开关及1个串联两个所述能量模块的串联开关，初始状态时，所述模块间控制部的所述并联开关及所述串联开关中的一种处于导通状态，另一种为处于断开状态。
作为一个实施方式，所述模块内控制部中的所述串联开关或所述并联开关各自单独设置为一列；所述模块内控制部中的所述串联开关设置为一列，两个所述并联开关设置为另一列；或者所述模块内控制部的两个所述并联开关及所述串联开关设置于一列。
作为一个实施方式，两个所述模块内控制部的四个所述并联开关设置于一列；或者两个所述模块内控制部的四个所述并联开关及两个所述串联开关均设置于同一列。
作为一个实施方式，所述模块间控制部中的所述串联开关或所述并联开关各自单独设置为一列；所述模块间控制部中的所述串联开关设置为一列，两个所述并联开关设置为另一列；或者所述模块间控制部的两个所述并联开关及所述串联开关设置于一列。
作为一个实施方式，所述模块内控制部及所述模块间控制部的六个所述并联开关及三个所述串联开关横向排成两到三排。
作为一个实施方式，每一所述并联开关及所述串联开关设有左右分隔的两个部分，每一部分设有一个接触臂，其中处于导通状态的所述并联开关或所述串联开关的两所述接触臂相互接触，其中处于断开状态的所述并联开关或所述串联开关的两所述接触臂相互分离。
为实现上述发明目的，本发明还提供如下技术方案，一种电动工具系统， 包括电动工具及前述电能储存装置，所述电动工具设有与所述插座对接的插头，所述插头设有与两个所述电压端子分别电性连接的两个连接片。
作为一个实施方式，所述插头上设置有与所述模块内控制部配合的内切换部，所述模块内控制部的所述并联开关与所述串联开关中的其中一种为常闭开关，另一种为常开开关，所述内切换部包括断开常闭开关的绝缘部及与导通常开开关的导电部，以将所述能量模块内的两个能量单元由并联改为串联或者由串联改为并联。
作为一个实施方式，所述插头上设置有与所述模块间控制部配合的外切换部，所述模块间控制部的所述并联开关与所述串联开关中其中一种为常闭开关，另一种为常开开关，所述外切换部包括断开常闭开关的绝缘部及导通常开开关的导电部，以将两个所述能量模块之间由并联改为串联或者由串联改为并联。
作为一个实施方式，多个所述导电部设置为一体结构，与位于同一列的多个常开开关分别接触，相邻所述导电部之间设有绝缘的分隔部；或所述导电部及所述绝缘部设置为一体结构，与位于同一列的常开开关及常闭开关分别接触。
为实现上述发明目的，本发明还进一步提供如下技术方案，一种电动工具系统，包括低压电动工具、中压电动工具、高压电动工具及前述电能储存装置，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中压插座对接并使四个所述能量单元处于两两并联后串联或两两并联后串联的中压状态。
作为一个实施方式，所述电动工具系统还包括与所述低压电动工具配接的低压电池包、与所述中压电动工具配接的中压电池包或与所述高压电动工具配接的高压电池包。
本发明的有益效果是：本发明电能储存装置具有多种输出电压中，增加了电能储存装置的适用范围，降低了使用成本。
附图说明
图1为实施例一中电能储存装置的四个能量单元的连接示意图。
图2为实施例一中电能储存装置的四个能量单元的初始电路连接示意图。
图3为实施例一中电能储存装置的端子排布图。
图4为实施例一中电能储存装置与低压插头配合时的连接示意图。
图5为与实施例一中电能储存装置配合的低压插头的结构示意图。
图6为实施例一中电能储存装置与低压插头配合时的示意图。
图7为实施例一中电能储存装置与低压插头配合时的电路示意图。
图8为低压插头的绝缘部与导电部全部一体设置的结构示意图。
图9为低压插头的绝缘部一体设置与且导电部另外一体设置的结构示意图。
图10为实施例一中电能储存装置与中压插头配合时的连接示意图。
图11为实施例一中电能储存装置配合的中压插头的结构示意图。
图12为实施例一中电能储存装置与中压插头配合时的示意图。
图13为实施例一中电能储存装置与中压插头配合时的电路示意图。
图14为中压插头的模块内控制部的绝缘部与导电部一体设置的结构示意图。
图15为中压插头的模块内控制部的导电部一体设置的结构示意图。
图16为实施例一中电能储存装置与高压插头配合时的结构示意图。
图17为实施例二中电能储存装置的四个能量单元的连接示意图。
图18为实施例二中电能储存装置的四个能量单元的初始电路连接示意图。
图19为实施例二中电能储存装置的端子排布图。
图20为实施例二中电能储存装置与低压插头配合时的结构示意图。
图21为实施例二中电能储存装置与中压插头配合时的连接示意图。
图22为与实施例二中电能储存装置配合的中压插头的结构示意图。
图23为实施例二中电能储存装置与中压插头配合时的示意图。
图24为实施例二中电能储存装置与中压插头配合时的电路示意图。
图25为实施例二中电能储存装置与高压插头配合时的连接示意图。
图26为与实施例二中电能储存装置配合的高压插头的结构示意图。
图27为实施例二中电能储存装置与高压插头配合时的示意图。
图28为实施例二中电能储存装置与高压插头配合时的电路示意图。
图29为绝缘部与导电部一体设置的结构示意图。
图30为实施例三中电能储存装置的四个能量单元的连接示意图。
图31为实施例三中电能储存装置的四个能量单元的初始电路连接示意图。
图32为实施例三中电能储存装置的端子排布图。
图33为实施例三中电能储存装置与低压插头配合时的连接示意图。
图34为与实施例三中电能储存装置配合的低压插头的结构示意图。
图35为实施例三中电能储存装置与低压插头配合时的剖面示意图。
图36为实施例三中电能储存装置与低压插头配合时的电路示意图。
图37为低压插头的绝缘部与导电部一体设置的结构示意图。
图38为低压插头的导电部一体设置的结构示意图。
图39为实施例三中电能储存装置与中压插头配合时的结构示意图。
图40为实施例三中电能储存装置与高压插头配合时的连接示意图。
图41为与实施例三中电能储存装置配合的高压插头的结构示意图。
图42为实施例三中电能储存装置与高压插头配合时的示意图。
图43为实施例三中电能储存装置与高压插头配合时的电路示意图。
图44为实施例三中高压插头的绝缘部与导电部一体设置的结构示意图。
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。
本发明提供了一种电能储存装置，包括四个电压相等的能量单元，四个能量单元通过串并联组合可提供三种输出电压。能量单元是指能够提供电能的物体，例如电芯、锂电池或者其他能量载体，当然，也可以将多个电池电性组合以形成为一个能量单元；所述的电池包括但不限于为锂电池、镍氢电池、镉镍电池等可充电电池。四个能量单元的额定电压均为nV。需要说明的是，每个能量单元的实测电压为n±5％V均可视为相等。
在本发明中，四个能量单元均等分为两个能量模块，每个能量模块内的两个能量单元之间的电路连接存在并联与串联两种可选状态，两个能量模块之间的电路连接也存在并联与串联两种可选状态。于是，电能储存装置的四个能量单元存在以下四种连接状态：1.能量模块内的两个能量单元并联连接，两个能量模块之间并联连接，使四个能量单元全部并联连接，此状态可简称为全并联状态，输出电压为nV；2.能量模块内的两个能量单元串联连接，两个能量模块串联连接，使四个能量单元全部串联连接，此状态可简称为全串联状态，输出电压为4*nV；3.能量模块内的两个能量单元串联连接，两个能量模块之间并联连接，此状态可简称为内串外并状态，输出电压为2*nV；4.能量模块内的两个能量单元并联连接，两个能量模块之间串联连接，此状态可简称为内并外串状态，输出电压也为2*nV。第3种及第4种输出电压相同，故该电能储存装置能够输出3种额定电压。除了初始的连接状态外，其他的连接状态可由对接的相应插头进行切换。另外，请留意，在前述任何一种连接状态下，全部能量单元均参与工作。
下面将结合附图对本发明的具体实施例进行说明。
实施例一
请参阅图1至图2所示，在本发明实施例一中的电能储存装置的四个能量单元分为能量模块10a和能量模块20a，每个能量模块10a、20a包括两个能量单元。电能存储装置设有插座，插座具有与两个能量模块10a、20a并联或串联连接后的总正、总负电极对应连接的两个电压输出端子，分别为正极端子101a与负极端子102a。
电能储存装置的插座(未图示)还包括两个模块内控制部及1个模块间控制部，两个模块内控制部用于分别控制每一能量模块10a、20a内的两个能量单元的连接状态，模块间控制部用于控制能量模块10a、20a之间的连接状态。
对应能量模块10a的模块内控制部包括第一串联开关41a、第一并联开关31a及第二并联开关32a。对应能量模块20a的模块内控制部包括第二串联开关42a、第三并联开关33a及第四并联开关34a。每个模块内控制部与能量模块10a、20a内的两能量单元的连接方式是相同的，下面以对应能量模块10a的模块内控制部为例进行说明。
第一串联开关41a、第一并联开关31a及第二并联开关32a均包括两个与能量单元的电极连接的接触部(未标号)，第一并联开关31a及第二并联开关32a的两个接触部均分别与能量模块10a内的两个能量单元的极性相同的电极连接，例如如图1所示，第一并联开关31a的两个接触部分别与两个能量单元的负极相连，第二并联开关32a的两个接触部分别与两个能量单元的正极相连，即，第一并联开关31a及第二并联开关32a并联连接能量模块10a内的两个能量单元。第一串联开关41a的两个接触部分别与两个能量单元的极性相反的电极连接，两个能量单元中另两个极性相反的电极与前述电压输出端子101a、102a分别连接，即，第一串联开关41a串联连接能量模块10a内的两个能量单元。
对应能量模块20a的模块内控制部具有第二串联开关42a、第三并联开 关33a及第四并联开关34a，其中第二串联开关42a串联能量模块20a内的两个能量单元，第三并联开关33a及第四并联开关34a并联能量模块20a内的两个能量单元。
模块间控制部的连接方式与模块内控制部相似，可以理解为将能量模块视为能量单元去理解，下面将对模块间控制部进行具体描述：每个能量模块10a、20a作为整体设有正、负两个电极。在本实施例中，模块间控制部包括第三串联开关43a、第五并联开关35a及第六并联开关36a，第五并联开关35a及第六并联开关36a的两个接触部均分别与两个能量模块10a、20a的极性相同的电极连接，例如如图1所示，第五并联开关35a的两个接触部分别与两个能量模块10a、20a的两正极相连，第六并联开关36a的两个接触部分别与两个能量模块10a、20a的两负极相连，即，并联开关35a、36a并联两能量模块10a、20a；第三串联开关43a的两个接触部分别与两个能量模块10a、20a的极性相反的两电极连接，即，第三串联开关43a串联两能量模块10a、20a。两个能量模块10a、20a中另两个极性相反的电极与前述电压输出端子101a、102a分别连接，作为输出结构。
其中，每一模块内控制部的串联开关和并联开关中的一种处于导通状态，另一种处于断开状态。在本实施中，模块内控制部的四个并联开关31a、32a、33a、34a为常开开关处于断开状态，模块内控制部的两个串联开关41a、42a为常闭开关处于导通状态，使能量模块10a、20a内的两个能量单元初始时处于串联连接状态。
其中，每一模块内控制部的串联开关和并联开关中的一种处于导通状态，另一种处于断开状态。在本实施中，模块间控制部的并联开关35a、36a为常开开关处于断开状态，模块间控制部的串联开关33a为常闭开关处于导通状态，能量模块10a、20a之间初始时处于串联连接状态。于是初始时的电能储存装置的能量单元处于串联状态，输出电压为4nV，图2为对应的电路图。
下面结合图3所示，介绍并联开关与串联开关的端子结构，两种开关的结构基本相同，每一开关包括左右分隔的两个部分，每一部分包括主体及自 主体向前延伸的接触臂，两接触臂共同形成接触部。在本实施例中，串联开关为常闭开关，即，串联开关的两接触臂处于接触导通状态；并联开关为常开开关，即，并联开关的两接触臂处于不接触断开状态。
请参阅图3所示，在本实施例中，两个模块内控制部与模块间控制部的三个串联开关41a、42a、43a与六个并联开关31a、32a、33a、34a、35a、36a呈前后排设置，三个串联开关41a、42a、43a位于前排，六个并联开关31a、32a、33a、34a、35a、36a位于后排，并且依次横向排布，沿左右方向上，每个串联开关41a、42a、43a及每个串联开关31a、32a、33a、34a、35a、36a均独立设为一列，其中各串联开关41a、42a、43a分别位于对应的两并联开关31a、32a、33a、34a、35a、36a之间。电能储存装置的两个电压输出端子上下排成一列，分别为设置于上侧的正极端子101a与设置于下侧的负极端子102a。作为简单的变化，两个电压输出端子101a、102a也可以前后排布或者左右排布。
请参阅图4至图9并结合图1所示，一种低压电动工具(未图示)，其工作电压为nV并具有与电能储存装置的插头互配的低压插头(未图示)。低压插头设有两个单片结构的连接片71a、72a，两个连接片71a、72a分别连接两个电压输出端子101a、102a配合。
低压插头上还设置有分别对应每个模块内控制部的两个内切换部，用于切换模块内控制部对能量模块10a、20a内的两个能量单元的连接状态的控制。低压插头上还设置有对应模块间控制部的外切换部，用于切换模块间控制部对能量模块10a、20a之间的连接状态的控制。每一切换部对应常闭开关设置的用于断开两接触臂的绝缘部，和对应常开开关设置的用于导通两接触臂的导通部，以实现切换状态的功能。
在本实施例中，模块内控制部的两个并联开关为常开开关，串联开关为常闭开关，相应的，对应能量模块10a的模块内控制部的内切换部设有第一绝缘部51a、第一导电部61a及第二导电部62a；对应能量模块20a的模块内控制部的内切换部包括第二绝缘部52a、第三导电部63a及第四导电部64a。 另，在本实施例中，模块间控制部的两个并联开关为常开开关，串联开关为常闭开关，故，外切换部对应设有第三绝缘部53a、第四导电部65a及第五导电部66a。各个绝缘部及导电部对应于相应的并联开关与串联开关的排布设置。
当低压插头与该电能储存装置配合时，两内切换部与两模块内控制部分别配合，第一绝缘部51a插入第一串联开关41a的两个接触部之间，第二绝缘部52a插入第二串联开关42a的两个接触部之间，以使第一串联开关41及第二串联开关42断开；第一导电部61a插入与第一并联开关31a的两个接触部之间，第二导电部62a插入与第二并联开关32a的两个接触部之间，第三导电部63a插入与第三并联开关33a的两个接触部之间，第四导电部64a插入与第四并联开关34a的两个接触部之间，以分别将第一并联开关31a、第二并联开关32a、第三并联开关33a及第四并联开关34a导通，即，两内切换部分别将两能量模块10a、20a内的两个能量单元由串联改为并联。
外切换部与模块间控制部配合，第三绝缘部53a插入第三串联开关43a的两个接触部之间，以使第三串联开关43a断开，第五导电部65a插入与第五并联开关35a的两个接触部之间。第六导电部66a插入第六并联开关36a的两个接触部之间，以使第五并联开关35a及第六并联开关36a导通，即，外切换部将两能量模块10a、20a之间由串联改为并联，于是四个能量单元全部并联，输出低压nV至低压电动工具，电路图如图7所示。
需要说明的是，本实施例中的并联开关与串联开关的排布可以根据需要设置排布，不应以此为限。例如，可以将两个模块内控制部的四个并联开关31a、32a、33a、34a设置于一列，两个模块内控制部的两个串联开关41a、42a设置于一列，将模块间控制部的两个并联开关35a、36a设置于一列，模块间控制部的串联开关43a设置于一列；或者将两个模块内控制部的并联开关31a、32a、33a、34a设置于一列，两个模块内控制部的两个串联开关41a、42a设置于一列，将模块间控制部的两个并联开关35a、36a与串联开关43a设置于一列；或者将两个模块内控制部的四个并联开关31a、32a、33a、34a 与其两个串联开关41a、42a设置于一列，模块间控制部的两个并联开关35a、36a与其串联开关43a设置于一列；或者将两个模块内控制部的四个并联开关31a、32a、33a、34a与串联开关41a、42a设置于一列，模块间控制部的两个并联开关35a、36a设置于一列，模块间控制部的串联开关43a设置于一列。总之，电能储存装置上的并联开关与串联开关的排布方式变化多样，在此不一一列举，本领域技术人员应该理解，排布方式的变化均在此专利的保护范围内。
应当理解，这里的第一、第二、第三、第四、第五、第六并不是对于数量的限制，仅是对对应关系的说明，实际上，导电部与绝缘部的设置可以根据电能储存装置的端子排布相应设置，例如图6中，第一至第六导电部61a、62a、63a、64a、65a、66a各个独立设置；也可以将各个导电部及各个绝缘部全部一体设置为插片50a，如图8所示；或者所有的导电部61a、62a、63a、64a、65a、66a可以一体设置为另一插片50a，相邻设置的导电部之间设有绝缘材料制成的分隔部50，三个绝缘部可以一体设置，如图9所示；或者将三个绝缘部一体设置；或者也可以将部分导电部一体设置，剩余的一体或分开设置，相邻设置的导电部之间设有绝缘材料制成的分隔部。总之，绝缘部与导电部的设置可以根据电能储存装置上常开开关、常闭开关的排布相应设置，排布方式变化多样，在此不一一列举了，本领域技术人员应该理解，排布方式的变化均在此专利的保护范围内。
请参阅图10至图15所示，一种中压电动工具(未图示)，其工作电压为2nV并具有与电能储存装置的插头互配的中压插头(未图示)。中压插头上设置有与模块内控制部配合的两个内切换部及与两个电压输出端子101、102配合的两个连接片71b、72b。
中压插头的内切换部与前述低压插头的内切换部结构基本相同，对应模块内控制部设置，用于切换每一个模块内控制部的状态。其中对应能量模块10a的模块内控制部的内切换部包括第一绝缘部51b、第一导电部61b及第二导电部62b；对应能量模块20a的模块内控制部的内切换部包括第二绝缘部 52b、第三导电部63b及第四导电部64b。
当中压插头与该电能储存装置配合时，两内切换部分别与两模块内控制部配合，使两能量模块10a、20a内的两个能量单元由串联改为并联。具体的配合方式可参考本实施例中低压插头中的内切换部与两模块内控制部配合，此处不再赘述。另外，两个能量模块10a、20a之间保持串联连接，四个能量单元连接的电路图如图13所示，电能储存装置内输出中压2nV至该中压电动工具。
需要说明的是，前述实施例中对应于一个常闭开关设置有一个绝缘部，对应于一个常开开关设置有一个导电部。应当理解，这里的第一、第二、第三、第四并不是对于数量的限制，仅是对对应关系的说明。中压插头的两内切换部的四个导电部61b、62b、63b、64b与两个绝缘部51b、52b的设置可以根据电能储存装置的端子排布相应设置为多种形式，例如，四个导电部61b、62b、63b、64b与两个绝缘部51b、52b可以全部一体设置为插接件50b，如图14所示；或者四个导电部61b、62b、63b、64b一体设置为另一插接件50b，相邻设置的导电部61b、62b、63b、64b之间设有绝缘材料制成的分隔部50，如图15所示；或者四个导电部61b、62b、63b、64b均分开设置，如图12所示；或者两个绝缘部51b、52b可以分开设置，如图12所示；当然，两个绝缘部51b、52b也可以一体设置。总之，内切换部的绝缘部与导电部的设置可以根据电能储存装置上常开开关、常闭开关的排布相应设置，排布方式变化多样，在此不一一列举了，本领域技术人员应该理解，排布方式的变化均在此专利的保护范围内。
请参阅图16并结合图2所示，一种高压电动工具(未图示)，其工作电压为4nV并具有与电能储存装置的插头互配的高压插头(未图示)。高压插头上设置有与两个电压输出端子101、102分别配合的两个连接片71c、72c。
由于在初始状态下，电能储存装置的能量模块10a、20a内的两个能量单元通过模块内控制部处于串联连接，两个能量模块10、20之间通过模块间控制部串联连接，四个能量单元的电路连接如图2所示，其电压为4nV。因此， 只需将高压插头上的两个连接片71c、72c分别与两个电压输出端子101、102分别连接即可实现输出高压4nV至高压电动工具。
实施二
请参阅图17至图18所示，本发明电能储存装置还提供了实施例二，在实施例二中的电能储存装置同样包括4个电压相等的能量单元，每个能量单元的电压均为nV；4个能量单元均等分为两个能量模块10d、20d，每个能量模块10d、20d包括两个能量单元，该电能储存装置也能够提供3种输出电压。电能存储装置设有插座，插座具有与两个能量模块10d、20d并联或串联连接后的总正、总负电极对应连接的两个电压输出端子，分别为正极端子101d与负极端子102d。
插座还包括两个模块内控制部及1个模块间控制部，模块内控制部用于控制每个能量模块10d、20d内的两个能量单元连接状态，模块间控制部用于控制能量模块10d、20d之间的连接状态。其中对应能量模块10d的模块内控制部包括两个并联开关41d、42d及串联开关31d；对应能量模块20d模块内控制部包括两个并联开关43d、44d及串联开关32d；模块间控制部包括两个并联开关45d、46d及串联开关33d。各个开关的具体的连接方式与实施一中各个开关的连接方式相同，可参考实施例一，此处不再赘述。
不同与实施例一，在本实施例中，并联开关41d、42d、43d、44d、45d、46d为常闭开关，串联开关31d、32d、33d为常开开关，故，初始时，能量模块10d、20d内的两个能量单元并联，两能量模块10d、20d之间并联，四个能量单元全部并联，通过电压端子101d、102d输出电压nV，如图18所示。
每一串联开关或每一并联开关的结构与实施例一中的基本相同，可参考实施例一中的描述，每一开关包括两个单独设置的接触臂，对应本实施例，并联开关的两接触臂接触导通，串联开关的两接触臂断开不接触。本实施例中，各个开关的排布也不同与实施例一。
参考图19，模块内控制部与模块间控制部的三个串联开关31d、32d、33d与六个并联开关41d、42d、43d、44d、45d、46d呈前后向的多列设置。 自左向右看，两并联开关41d、42d位于一列，两并联开关43d、44d位于一列，两并联开关45d、46d位于一列；三个串联开关31d、32d、33d各自成一列，并设置在并联开关41d、42d、43d、44d、45d、46d的后方，且沿左右横向上与并联开关41d、42d、43d、44d、45d、46d所形成的三列交错设置，其中串联开关31d位于最左侧一列。电压输出端子101d、102d位于最右侧一列。
请参阅图20并结合图17所示，一种低压电动工具(未图示)，其工作电压为nV并具有与电能储存装置的插头互配的低压插头(未图示)。低压插头上设置有与两个连接片71d、72d。连接片71d、72d分别与两个电压输出端子101d、102d配合，能量模块10d、20d内的两个能量单元保持并联，两个能量模块10d、20d之间保持并联，可输出nV至低压电动工具。
请参阅图21至图23所示，一种中压电动工具(未图示)，其工作电压为2nV并具有与电能储存装置的插头互配的中压插头(未图示)。
中压插头上设置有与两个输出端子101d、102d配合的两个连接片71e、72e。中压插头还设有与模块内控制部配合的内切换部，用于切换模块内控制部对能量模块10d、20d内的两个能量单元的连接状态的控制。在本实施例中，内切换部包括两个绝缘部及1个导电部，具体的，对应能量模块10d的模块内控制部的内切换部包括导电部61e和两个绝缘部51e、52e；对应能量模块10d的模块内控制部的内切换部包括导电部62e和两个绝缘部53e、54e。
各个绝缘部及导电部对应于相应的并联开关与串联开关的排布设置，基于两并联开关41d、42d位于一列，两个绝缘部51e、52e一体设置于一列，基于两并联开关43d、44d位于一列，两个绝缘部53e、54e一体设置于一列。
当中压插头与插座插接配合时，绝缘部51e、52e、53e、54e分别断开并联开关41d、42d、43d、44d；导电部61e、62e分别导通串联开关31d、32d，以使能量模块10d、20d内的两个能量单元由并联改为串联，两个能量模块10d、20d之间保持并联，四个能量单元两两串联后并联，以输出中压2nV至该中压电动工具，相应的连接电路图如图24所示。
需要说明的是，前述实施例中对应于每一个常闭开关设置有一个绝缘部， 对应于每一个常开开关设置有一个导电部。应当理解，这里的两个或四个并不是对于数量的限制，仅是对对应关系的说明，实际上，导电部与绝缘部的设置可以根据电能储存装置的端子排布相应设置，导电部61e、62e可以分开设置，如图23所示；当然，导电部61e、62e也可以一体设置，相邻设置的导电部之间设置绝缘材料制成的绝缘分隔部以避免短路。绝缘部51e、52e、53e、54e可以一体设置，也可以全部分开设置，也可以部分绝缘部一体设置，部分绝缘部分开设置，例如，绝缘部51e、52e为一体设置的，绝缘部53e、54e为一体设置的，两两设置为一体，如图23所示。导电部与绝缘部也可以一体设置，例如，一段为绝缘材料制成的绝缘部，一段为导电材料制成的导电部。总之，绝缘部与导电部的设置可以根据电能储存装置上常开开关、常闭开关的排布相应设置，排布方式变化多样，在此不一一列举了，本领域技术人员应该理解，排布方式的变化均在此专利的保护范围内。
请参阅图25至图27所示，一种高压电动工具(未图示)，其工作电压为4nV并具有与电能储存装置的插头互配的高压插头(未图示)。
高压插头上设置有分别与两个输出端子101d、102d配合的两个连接片71b、72b。高压插头还设有与模块内控制部配合的内切换部，用于切换模块内控制部对能量模块10d、20d内的两个能量单元的连接状态的控制。在本实施例中，内切换部包括两个绝缘部及1个导电部，具体的，对应能量模块10d的模块内控制部的内切换部包括导电部61f和两个绝缘部51f、52f，对应能量模块20d的模块内控制部的内切换部包括导电部62f和两个绝缘部53f、54f。内切换部的结构与中压插头一致，不再赘述。
在本实施例中，高压插头还设有与模块间控制部配合的外切换部，用于切换模块间控制部对能量模块10d、20d之间的连接状态的控制。在本实施例中，外切换部包括导电部63f和两个绝缘部55f、56f。当高压插头与插座插接配合时，内切换部与模块内控制部配合，与使能量模块10d、20d内的两个能量单元由并联改为串联，具体的配合方式可参考本实施例中压插头与插座的配合。外切换部与模块间控制部配合，绝缘部55f、56f断开并联开关45d、 46d，导电部63f导通与串联开关33d，使两个能量模块10d、20d之间由并联改为串联，以输出高压4nV至该高压电动工具，四个能量单元的连接电路图如图28所示。
需要说明的是，导电部与绝缘部的设置可以根据电能储存装置的端子排布相应设置。导电部61f、62f、63f及绝缘部51f、52f、53f、54f、55f、56f可以一体设置，如图29所示；导电部及绝缘部可以个个分开设置，也可以将绝缘部部分或全部一体设置。导电部可以分开设置，如图27所示，也可以一体设置。总之，绝缘部与导电部的设置可以根据电能储存装置上常开开关、常闭开关的排布相应设置，排布方式变化多样，在此不一一列举了，本领域技术人员应该理解，排布方式的变化均在此专利的保护范围内。
实施例三
请参阅图30至图31所示，本发明电能储存装置还提供了实施例三，在实施例三中的电能储存装置同样包括4个电压相等的能量单元，每个能量单元的电压均为nV；4个能量单元均等分为两个能量模块10h、20h，每个能量模块10h、20h包括两个能量单元，该电能储存装置也能够提供3种输出电压。
电能存储装置设有插座，插座具有与两个能量模块10d、20d并联或串联连接后的总正、总负电极对应连接的两个电压输出端子，分别为正极端子101h与负极端子102h。
插座还包括两个模块内控制部及1个模块间控制部，模块内控制部用于控制每个能量模块10h、20h内的两个能量单元连接状态，模块间控制部用于控制能量模块10h、20h之间的连接状态。对应能量模块10h的模块内控制部包括两个并联开关31h、32h及串联开关41h，对应能量模块20h的模块内控制部包括两个并联开关33h、34h及串联开关42h；模块间控制部包括两个并联开关43h、44h及串联开关35h。各个开关的具体的连接方式与实施一中各个开关的连接方式相同，可参考实施例一，此处不再赘述。
本实施例中，模块内控制部的并联开关31h、32h、33h、34h为常开开关，串联开关41h、42h为常闭开关，初始时，能量模块10h、20h内的两个 能量单元串联，类似实施一中的模块内控制部。模块间控制部的并联开关43h、44h为常闭开关，串联开关35h为常开开关，初始时，能量模块10h、20h之间并联，类似实施二中的模块间控制部。本实施例中，四个能量单元两两串联后并联，相应的连接电路图如图31所示。
参考图32，在本实施例中，两模块内控制部及模块间控制部沿左右方向排布。其中两模块内控制部的两个串联开关41h、42h位于前排，四个并联开关31h、32h、33h、34h排在后排；沿左右方向，串联开关41h位于两并联开关31h、32h之间，串联开关42h位于两并联开关33h、34h之间。模块间控制部的串联开关35h位于后排，并联开关43h位于前排，另一并联开关44h与并联开关43h位于一列，位于前后排之间。简单的说，两模块内控制部的开关排布与实施例一中的相同，可参考实施例一。模块间控制部的开关排布与实施例二中的相同，可参考实施例二。
请参阅图33并结合图35所示，一种低压电动工具(未图示)，其工作电压为nV并具有与电能储存装置的插头互配的低压插头(未图示)。低压插头上设置有两个连接片71h、72h。连接片71h、72h与两个电压输出端子101h、102h配合。低压插头还设置有与模块内控制部配合的两个内切换部，对应能量模块10h的内切换部包括绝缘部51h及导电部61h、62h，对应能量模块20h的内切换部包括绝缘部52h及导电部63h、64h，绝缘部51h、52h分别断开串联开关51h、52h，导电部61h、62h、63h、64h分别导通并联开关31h、32h、33h、34h，使能量模块10h、20h内的两个能量单元由串联改为并联，内切换部与模块内控制部的具体配合方式可参考实施一，此处不再赘述。两个能量模块10h、20h之间保持并联，该能量存储装置输出nV至低压电动工具，相应电路图如图36所示。
需要说明的是，导电部与绝缘部的设置可以根据电能储存装置的端子排布相应设置。导电部及绝缘部可以一体设置，如图37所示；导电部及绝缘部可以个个分开设置，如图34所示；也可以将绝缘部部分或全部一体设置；导电部可以分开设置，也可以一体设置，如图38所示。总之，绝缘部与导电部 的设置可以根据电能储存装置上常开开关、常闭开关的排布相应设置，排布方式变化多样，在此不一一列举了，本领域技术人员应该理解，排布方式的变化均在此专利的保护范围内。
请参阅图39并结合图17所示，一种中压电动工具(未图示)，其工作电压为nV并具有与电能储存装置的插头互配的低压插头(未图示)。中压插头上设置有与两个连接片71i、72i。两个连接片71i、72i分别与两个电压输出端子101h、102h配合，能量模块10h、20h内的两个能量单元保持并联，两个能量模块10h、20h之间保持并联，可直接输出nV至低压电动工具。
请参阅图40至图42所示，一种高压电动工具(未图示)，其工作电压为4nV并具有与电能储存装置的插头互配的高压插头(未图示)。
高压插头上设置有与两个输出端子101h、102h配合的两个连接片71j、72j。高压插头还设有与模块间控制部配合的外切换部，用于切换模块间控制部内的两个能量单元10h、20h的连接状态。外切换部包括导电部65j和两个绝缘部53j、54j。当高压插头与插座插接配合时，外切换部与模块间控制部配合，绝缘部53j、54j断开并联开关43h、44h，导电部65j导通串联开关35j，使两个能量模块10h、20h之间由并联改为串联，外切换部与模块间控制部的配合与实施二例中的一致，可参考实施例二。能量模块10h、20h内的两个能量单元保持串联，故，该能量存储装置输出高压4nV至该高压电动工具，相应的连接电路图如图43所示。
需要说明的是，本实施例中的模块间控制部的导电部65j与两个绝缘部53j、54j可以一体设置，如图44所示；导电部65j与两个绝缘部53j、54j也可以分开设置，如图41所示。两个绝缘部53j、54j可以一体设置，如图41所示；两个绝缘部53j、54j也可以分开设置。总之，绝缘部与导电部的设置可以根据电能储存装置上常开开关、常闭开关的排布相应设置，排布方式变化多样，在此不一一列举了，本领域技术人员应该理解，排布方式的变化均在此专利的保护范围内。
实施例四
可以理解的是，上述任一实施例中的低压电动工具、中压电动工具及高压电动工具及电能存储装置可形成一种更广泛的电动工具系统，低压电动工具的低压插头与电能存储装置的插座对接并使四个能量单元处于全并联状态；高压电动工具的高压插头与插座对接并使四个所述能量单元处于全串联状态；中压电动工具的中压插头与插座对接并使四个所述能量单元两两并联后串联或两两串联后并联的中压状态。
另外，该电动工具系统还包括与低压电动工具配接的常规低压电池包、与中压电动工具配接的常规中压电池包或与高压电动工具配接的常规高压电池包。每一常规低压电池包设有正极及负极，可分别与低压电动工具、中压电动工具及高压电动工具的两连接片配合。常规低压电池包、常规中压电池包及常规高压电池包分别具有固定的输出电压值。
需要说明的是，本发明中实施一至实施三中的常闭开关是指在初始状态下，其两个接触部是处于接触状态以实现与两个接触部电性连接的电极处于连接状态，且可通过外物作用改变两个接触部的电性连接状态，使两个接触部从接触状态切换为断开状态，例如，常闭端子。常开开关是指在初始状态下，其两个接触部是处于断开状态以实现与两个接触部电性连接的电极处于断开状态，且可通过外物作用改变两个接触部的电性连接状态，使两个接触部从断开状态切换为连接状态，例如，常开端子。当然，常开开关并不限于为常开端子，常闭开关也不限于为常闭端子，能够实现相同功能的实施方式均在此发明的保护范围内。
以上实施例仅用以说明本发明的技术方案而非限制，尽管参照较佳实施例对本发明进行了详细说明，本领域的普通技术人员应当理解，可以对本发明的技术方案进行修改或者等同替换，而不脱离本发明技术方案的精神和范围。

Claims (14)

  1. 一种电能储存装置，包括四个额定电压相同的能量单元，四个所述能量单元均分成为两个能量模块，所述电能储存装置具有正极及负极，其特征在于：所述电能储存装置设有插座，所述插座包括分别与所述正极及所述负极连接的两个电压输出端子；所述插座还对应每一个所述能量模块设置有模块内控制部，所述模块内控制部将所述能量模块内的两个所述能量单元控制在并联或串联连接状态，并且能够在并联和串联连接状态之间切换；所述插座还设有模块间控制部，所述模块间控制部将两个所述能量模块之间控制在并联或串联连接状态，并且能够在并联和串联连接状态之间切换。
  2. 根据权利要求1所述的电能储存装置，其特征在于：所述插座设有两个所述模块内控制部，每一模块内控制部设置有两个并联开关及1个串联开关，两个所述并联开关并联所述能量模块内的两个所述能量单元，所述串联开关串联所述能量模块内的两个所述能量单元，初始状态时，所述模块内控制部的所述并联开关及所述串联开关中的一种处于导通状态，另一种为处于断开状态。
  3. 根据权利要求2所述的电能储存装置，其特征在于：所述模块间控制部设置有两个并联两个所述能量模块的并联开关及1个串联两个所述能量模块的串联开关，初始状态时，所述模块间控制部的所述并联开关及所述串联开关中的一种处于导通状态，另一种为处于断开状态。
  4. 根据权利要求3所述的电能储存装置，其特征在于：所述模块内控制部中的所述串联开关或所述并联开关各自单独设置为一列；所述模块内控制部中的所述串联开关设置为一列，两个所述并联开关设置为另一列；或者所述模块内控制部的两个所述并联开关及所述串联开关设置于一列。
  5. 根据权利要求3所述的电能储存装置，其特征在于：两个所述模块内控制部的四个所述并联开关设置于一列；或者两个所述模块内控制部的四个所述并联开关及两个所述串联开关均设置于同一列。
  6. 根据权利要求3所述的电能储存装置，其特征在于：所述模块间控制部中的所述串联开关或所述并联开关各自单独设置为一列；所述模块间控制部中 的所述串联开关设置为一列，两个所述并联开关设置为另一列；或者所述模块间控制部的两个所述并联开关及所述串联开关设置于一列。
  7. 根据权利要求3所述的电能储存装置，其特征在于：所述模块内控制部及所述模块间控制部的六个所述并联开关及三个所述串联开关横向排成两到三排。
  8. 根据权利要求3所述的电动工具系统，其特征在于：每一所述并联开关及所述串联开关设有左右分隔的两个部分，每一部分设有一个接触臂，其中处于导通状态的所述并联开关或所述串联开关的两所述接触臂相互接触，其中处于断开状态的所述并联开关或所述串联开关的两所述接触臂相互分离。
  9. 一种电动工具系统，其特征在于：所述电动工具系统包括电动工具及如权利要求3至8中任意一项的所述电能储存装置，所述电动工具设有与所述插座对接的插头，所述插头设有与两个所述电压端子分别电性连接的两个连接片。
  10. 根据权利要求9所述的电动工具系统，其特征在于：所述插头上设置有与所述模块内控制部配合的内切换部，所述模块内控制部的所述并联开关与所述串联开关中的其中一种为常闭开关，另一种为常开开关，所述内切换部包括断开常闭开关的绝缘部及与导通常开开关的导电部，以将所述能量模块内的两个能量单元由并联改为串联或者由串联改为并联。
  11. 根据权利要求10所述的电动工具系统，其特征在于：所述插头上设置有与所述模块间控制部配合的外切换部，所述模块间控制部的所述并联开关与所述串联开关中其中一种为常闭开关，另一种为常开开关，所述外切换部包括断开常闭开关的绝缘部及导通常开开关的导电部，以将两个所述能量模块之间由并联改为串联或者由串联改为并联。
  12. 根据权利要求11所述的电动工具系统，其特征在于：多个所述导电部设置为一体结构，与位于同一列的多个常开开关分别接触，相邻所述导电部之间设有绝缘的分隔部；或所述导电部及所述绝缘部设置为一体结构，与位于同一列的常开开关及常闭开关分别接触。
  13. 一种电动工具系统，其特征在于：所述电动工具系统包括低压电动工具、 中压电动工具、高压电动工具及如权利要求1至8所述的电能储存装置，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中压插座对接并使四个所述能量单元处于两两并联后串联或两两并联后串联的中压状态。
  14. 根据权利要求13所述的电动工具系统，其特征在于：所述电动工具系统还包括与所述低压电动工具配接的低压电池包、与所述中压电动工具配接的中压电池包或与所述高压电动工具配接的高压电池包。
PCT/CN2019/114237 2018-12-20 2019-10-30 电能储存装置及电动工具系统 WO2020125211A1 (zh)

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