Power connection assembly of energy storage device, energy storage module and electric equipment

Abstract

The invention discloses a power connection assembly of an energy storage device, an energy storage module and electric equipment, the power connection assembly comprises an electric connecting piece and an electric matching piece, the electric connecting piece and the electric matching piece of adjacent energy storage devices are electrically connected, the electric connecting piece comprises a positive pole connecting end and a negative pole connecting end, and the electric matching piece comprises a positive pole matching end and a negative pole matching end; the positive electrode connecting end and at least part of the positive electrode of the battery main body of the energy storage device, the positive electrode matching end and the positive electrode of the battery main body, the negative electrode connecting end and the negative electrode of the battery main body, and the negative electrode matching end and the negative electrode of the battery main body are connected through the switches; and the electric connection state of the adjacent energy storage devices is changed by controlling the opening and closing of different switches. According to the power connection assembly of the energy storage device, the series connection and parallel connection relation of the adjacent battery main bodies can be changed by controlling opening and closing of the different switches, and then the total voltage and total current of the multiple energy storage devices can be changed.

Description

Technical Field

[0001] The present invention relates to the field of energy storage technology, and in particular to an electrical connection component and an energy storage module of an energy storage device, and electrical equipment. Background Art

[0002] In the related art, multiple battery bodies are electrically connected through wires. When the relationship between the battery bodies needs to be changed, the connection relationship between the wires and the battery bodies needs to be changed, and the battery bodies and the wires need to be rearranged, which is difficult to operate. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a power connection component of an energy storage device, which can change the series and parallel relationship of adjacent battery bodies by controlling the opening and closing of different switches, and thus can change the total voltage and total current of multiple energy storage devices. This method of changing the series and parallel relationship of adjacent battery bodies is simpler and less prone to error, which is convenient for improving efficiency and reducing costs.

[0004] The present invention also provides an energy storage device having the power connection component.

[0005] The present invention also provides an electrical device having the energy storage module.

[0006] According to the power connection component of the energy storage device of the first aspect of the embodiment of the present invention, the power connection component includes: an electrical connection component and an electrical matching component, the electrical connection component and the electrical matching component are located at both ends of the energy storage device in a first direction, the electrical connection component and the electrical matching component of the energy storage devices adjacent to each other in the first direction are electrically connected, the electrical connection component includes a positive electrode connection terminal and a negative electrode connection terminal, and the electrical matching component includes a positive electrode matching terminal and a negative electrode matching terminal; a plurality of switches, at least part of the positive electrode connection terminal and the positive electrode of the battery body of the energy storage device, the positive electrode matching terminal and the positive electrode of the battery body, the negative electrode connection terminal and the negative electrode of the battery body, and the negative electrode matching terminal and the negative electrode of the battery body are connected through the switches, and the electrical connection state of the adjacent energy storage devices is changed by controlling the opening and closing of different switches.

[0007] According to the power connection assembly of the energy storage device of the embodiment of the present invention, by controlling the opening and closing of different switches, the series and parallel relationship of adjacent battery bodies can be changed, and the total voltage and total current of multiple energy storage devices can be changed. This method of changing the series and parallel relationship of adjacent battery bodies is simpler and less prone to errors, which is convenient for improving efficiency and reducing costs.

[0008] In addition, the power connection assembly of the energy storage device according to the above embodiment of the present invention may also have the following additional technical features:

[0009] According to some embodiments of the present invention, one of the electrical connector and the electrical matching component is a male plug, and the other is a female plug.

[0010] According to some embodiments of the present invention, the switch is integrated into the electrical connection component and / or the electrical matching component.

[0011] According to some embodiments of the present invention, the power connection component includes a circuit board, the switch is integrated into the circuit board, and the circuit board is used to connect to the positive and negative electrodes of the battery body and communicate with the control component of the energy storage device to control the opening and closing of the switch.

[0012] According to some embodiments of the present invention, the circuit board is located inside the energy storage device.

[0013] According to some optional embodiments of the present invention, a first terminal and a second terminal are provided on the circuit board, and the first terminal and the second terminal are respectively used to be electrically connected to the positive electrode and the negative electrode of the battery body.

[0014] According to some embodiments of the present invention, the power connection component of the energy storage device further includes a switch panel, the switch panel is located inside and / or outside the energy storage device, and the switch is integrated into the switch panel.

[0015] According to a second aspect of the present invention, an energy storage module is provided, the energy storage module comprising a plurality of energy storage devices, the plurality of energy storage devices are stacked, and each of the energy storage devices comprises a power connection assembly and a battery body according to the embodiment of the first aspect of the present invention.

[0016] The energy storage module according to the embodiment of the present invention utilizes the power connection assembly of the energy storage device according to the embodiment of the first aspect of the present invention, and by controlling the opening and closing of different switches, the series and parallel relationship of adjacent battery bodies can be changed, thereby changing the total voltage and total current of multiple energy storage devices. This method of changing the series and parallel relationship of adjacent battery bodies is simpler and less prone to errors, and is convenient for improving efficiency and reducing costs.

[0017] In addition, the energy storage module according to the above embodiment of the present invention may also have the following additional technical features:

[0018] According to some embodiments of the present invention, at least one of the positive electrode connection terminal and the negative electrode connection terminal is multiple; at least one of the positive electrode matching terminal and the negative electrode matching terminal is multiple.

[0019] According to some optional embodiments of the present invention, the electrical connector includes a first positive electrode connection terminal, a second positive electrode connection terminal, and a third negative electrode connection terminal, and the electrical matching component includes a first negative electrode matching terminal, a second positive electrode matching terminal, and a third negative electrode matching terminal. The first positive electrode connection terminal, the second positive electrode connection terminal, and the third negative electrode connection terminal of two adjacent energy storage devices are electrically connected to the first negative electrode matching terminal, the second positive electrode matching terminal, and the third negative electrode matching terminal in a one-to-one correspondence, wherein the first positive electrode connection terminal is connected to the positive electrode of the battery body through a first switch, and the first negative electrode matching terminal is electrically connected to the negative electrode of the battery body through a second switch. The second positive electrode connection terminal in the same energy storage device is electrically connected to the second positive electrode matching terminal, and the second positive electrode connection terminal and the second positive electrode matching terminal are electrically connected to the positive electrode of the battery body through a third switch. The third negative electrode connection terminal in the same energy storage device is electrically connected to the third negative electrode matching terminal, and the third negative electrode connection terminal and the third negative electrode matching terminal are electrically connected to the negative electrode of the battery body through a fourth switch.

[0020] According to some specific embodiments of the present invention, the electrical connector also includes a fourth positive electrode connection terminal and a fifth negative electrode connection terminal, and the electrical matching component also includes a fourth positive electrode matching terminal and a fifth negative electrode matching terminal, and the fourth positive electrode connection terminal and the fifth negative electrode connection terminal of two adjacent energy storage devices are electrically connected to the fourth positive electrode matching terminal and the fifth negative electrode matching terminal in a one-to-one correspondence, wherein the fourth positive electrode connection terminal of the energy storage device is electrically connected to the positive electrode of the battery body through a fifth switch, the fourth positive electrode matching terminal is electrically connected to the positive electrode of the battery body through a sixth switch, the fifth negative electrode connection terminal is electrically connected to the negative electrode of the battery body through a seventh switch, and the fifth negative electrode matching terminal is electrically connected to the negative electrode of the battery body through an eighth switch.

[0021] According to some optional embodiments of the present invention, the electrical connector includes a first positive electrode connection terminal, a fourth positive electrode connection terminal and a fifth negative electrode connection terminal, the electrical matching component includes a first negative electrode matching terminal, a fourth positive electrode matching terminal and a fifth negative electrode matching terminal, the first positive electrode connection terminal, the fourth positive electrode connection terminal and the fifth negative electrode connection terminal of two adjacent energy storage devices are electrically connected to the first negative electrode matching terminal, the fourth positive electrode matching terminal and the fifth negative electrode matching terminal in a one-to-one correspondence, wherein the first positive electrode connection terminal is connected to the positive electrode through a first switch, the first negative electrode matching terminal is electrically connected to the negative electrode of the battery body through a second switch, the fourth positive electrode connection terminal of the energy storage device is electrically connected to the positive electrode of the battery body through a fifth switch, the fourth positive electrode matching terminal is electrically connected to the positive electrode of the battery body through a sixth switch, the fifth negative electrode connection terminal is electrically connected to the negative electrode of the battery body through a seventh switch, and the fifth negative electrode matching terminal is electrically connected to the negative electrode of the battery body through an eighth switch.

[0022] According to some embodiments of the present invention, the energy storage module further includes: an output component, the output component including a positive output terminal and a negative output terminal, the output component is plugged into and matched with an electrical connector at one end of the energy storage module in the first direction, the positive output terminal is electrically connected to the positive connection terminal, and the negative output terminal is electrically connected to the negative connection terminal.

[0023] According to some optional embodiments of the present invention, the electrical connector also includes a functional connection end, the electrical matching component includes a functional matching end, the functional connection end of the same energy storage device is electrically connected to the functional matching end, the functional connection ends of two adjacent energy storage devices are electrically connected to the functional matching end, the functional connection end of the energy storage module at one end of the first direction is electrically connected to the output component, and the functional matching end of the electrical matching component of the energy storage module at the other end of the first direction is electrically connected to the positive electrode matching end and / or the negative electrode matching end.

[0024] According to a third aspect of the present invention, an electric device is provided. The electric device includes the energy storage module according to the embodiment of the second aspect of the present invention.

[0025] According to the electrical equipment of the embodiment of the present invention, using the energy storage module described in the embodiment of the second aspect of the present invention, by controlling the opening and closing of different switches, the series and parallel relationship of adjacent battery bodies can be changed, and the total voltage and total current of multiple energy storage devices can be changed. This method of changing the series and parallel relationship of adjacent battery bodies is simpler and less prone to errors, which is convenient for improving efficiency and reducing costs.

[0026] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0028] Figure 1 is a schematic structural diagram of an energy storage module according to an embodiment of the present invention;

[0029] Figure 2 is a structural exploded diagram of an energy storage module according to an embodiment of the present invention;

[0030] Figure 3 is a schematic structural diagram of an energy storage device according to an embodiment of the present invention;

[0031] Figure 4 is a schematic structural diagram of a circuit board, an electrical connector, and an electrical matching component according to an embodiment of the present invention;

[0032] Figure 5 is a schematic structural diagram of an electrical connector according to an embodiment of the present invention;

[0033] Figure 6 is a schematic structural diagram of an electrical matching component according to an embodiment of the present invention;

[0034] Figure 7 is a schematic diagram of connecting multiple energy storage devices according to some embodiments of the present invention;

[0035] Figure 8 yes Figure 7 A magnified view of the middle area;

[0036] Fig. 9 A schematic diagram of a structure in which four battery cells are connected in series according to some embodiments of the present invention;

[0037] Fig.10 is a schematic diagram of a structure in which four battery cells are connected in parallel according to some embodiments of the present invention;

[0038] Fig.11 A schematic diagram of a structure in which the first two battery cells of four battery cells are connected in series, the last two are connected in series, and then connected in parallel according to some embodiments of the present invention;

[0039] Fig.12 is a schematic diagram of connecting multiple energy storage devices according to other embodiments of the present invention;

[0040] Fig.13 yes Fig.12 A magnified view of the middle area;

[0041] Fig.14 It is a schematic structural diagram of four battery cells connected in series according to some other embodiments of the present invention;

[0042] Fig.15 is a schematic structural diagram of four battery cells connected in parallel according to some other embodiments of the present invention;

[0043] Fig.16 A schematic diagram of a structure in which the first two battery cells of four battery cells are connected in series, the last two are connected in series, and then connected in parallel according to some other embodiments of the present invention;

[0044] Fig.17 A schematic diagram of a structure in which the first three of four battery cells are connected in series and then connected in parallel with the last battery cell according to some other embodiments of the present invention;

[0045] Fig.18 A schematic diagram of a structure in which the first two of four battery cells are connected in parallel, the last two are connected in parallel, and then connected in series according to some other embodiments of the present invention;

[0046] Fig.19 A schematic diagram of a structure in which the first three of four battery cells are connected in parallel and then connected in series with the last battery cell according to some other embodiments of the present invention;

[0047] Fig. 20 is a schematic diagram of connecting multiple energy storage devices according to some other embodiments of the present invention;

[0048] Fig.21 yes Fig. 20 A magnified view of the middle area;

[0049] Fig. 22 A schematic diagram of a structure in which four battery cells are connected in series according to some other embodiments of the present invention;

[0050] Fig.23 A schematic diagram of a structure in which four battery cells are connected in parallel according to some other embodiments of the present invention;

[0051] Fig.24 It is a schematic structural diagram of four battery cells according to some other embodiments of the present invention, in which the first two are connected in parallel, the last two are connected in parallel, and then are connected in series.

[0052] Reference numerals: 1000, energy storage module; 100, energy storage device; 10, housing;

[0053] 30. Electrical connector; 301. Positive electrode connection terminal; 302. Negative electrode connection terminal; 303. First ground terminal; 31. First positive electrode connection terminal; 32. Second positive electrode connection terminal; 33. Third negative electrode connection terminal; 34. Fourth positive electrode connection terminal; 35. Fifth negative electrode connection terminal; 38. Functional connection terminal;

[0054] 40. Electrical matching part; 401. Positive matching end; 402. Negative matching end; 403. Second power connection end; 41. First negative matching end; 42. Second positive matching end; 43. Third negative matching end; 44. Fourth positive matching end; 45. Fifth negative matching end; 48. Function matching end;

[0055] 50. Battery body; 55. Circuit board; 551. First terminal; 552. Second terminal;

[0056] S1, first switch; S2, second switch; S3, third switch; S4, fourth switch; S5, fifth switch; S6, sixth switch; S7, seventh switch; S8, eighth switch;

[0057] 70, output member; 71, positive output terminal; 72, negative output terminal;

[0058] 81. Base; 811. Conductive connector; 82. Upper cover. DETAILED DESCRIPTION

[0059] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0060] The following describes the power connection assembly of the energy storage device 100 according to an embodiment of the present invention with reference to the accompanying drawings.

[0061] like Figure 1-Figure 6 As shown, the power connection assembly of the energy storage device 100 according to the embodiment of the present invention includes an electrical connection member 30, an electrical matching member 40, and a plurality of switches.

[0062] The electrical connector 30 and the electrical matching component 40 are located at both ends of the energy storage device 100 in the first direction, the electrical connector 30 includes a positive electrode connection terminal 301 and a negative electrode connection terminal 302, the electrical matching component 40 includes a positive electrode matching terminal 401 and a negative electrode matching terminal 402, and at least part of the positive electrode connection terminal 301 and the positive electrode of the battery body 50 of the energy storage device 100, the positive electrode matching terminal 401 and the positive electrode of the battery body 50 of the energy storage device 100, the negative electrode connection terminal 302 and the negative electrode of the battery body 50 of the energy storage device 100, and the negative electrode matching terminal 402 and the negative electrode of the battery body 50 of the energy storage device 100 are connected through a switch.

[0063] The electrical connectors 30 and the electrical matching components 40 of the energy storage devices 100 adjacent to each other in the first direction are electrically connected to electrically connect the multiple battery bodies 50 together, thereby enabling the multiple energy storage devices 100 to output power to the outside together.

[0064] Among them, the electrical connection state of adjacent energy storage devices 100 is changed by controlling the opening and closing of different switches. Specifically, by controlling the opening and closing of different switches, the series and parallel relationship of adjacent battery bodies 50 can be changed, thereby changing the total voltage and total current of multiple energy storage devices 100.

[0065] In the prior art, multiple battery bodies are electrically connected by wires. When the relationship between the battery bodies needs to be changed, the connection relationship between the wires and the battery bodies needs to be changed. Therefore, when changing the series or parallel relationship of adjacent battery bodies, on the one hand, the operation is difficult and prone to errors, and on the other hand, the operation efficiency is low and the use cost is high.

[0066] In addition, the structures of the multiple energy storage devices 100 are the same, so when the multiple energy storage devices 100 are assembled together along the first direction, there is no need to sort the energy storage devices 100, which helps to reduce the difficulty of assembly.

[0067] It needs to be explained here that the positive electrode connection terminal 301 and the positive electrode of the battery body 50, the positive electrode matching terminal 401 and the positive electrode of the battery body 50, the negative electrode connection terminal 302 and the negative electrode of the battery body 50, and the negative electrode matching terminal 402 and the negative electrode of the battery body 50 may be connected through a switch, or one or two of them may be connected through a switch, and the rest may be directly connected.

[0068] According to the power connection assembly of the energy storage device 100 of the embodiment of the present invention, by controlling the opening and closing of different switches, the series and parallel relationship of adjacent battery bodies 50 can be changed, and the total voltage and total current of multiple energy storage devices 100 can be changed. This method of changing the series and parallel relationship of adjacent battery bodies 50 is simpler and less prone to errors, which is convenient for improving efficiency and reducing costs.

[0069] The following describes the power connection assembly of the energy storage device 100 according to a specific embodiment of the present invention with reference to the accompanying drawings.

[0070] In some specific embodiments of the present invention, Figure 1-Figure 6 As shown, the power connection assembly of the energy storage device 100 according to the embodiment of the present invention includes an electrical connection member 30, an electrical matching member 40, and a plurality of switches.

[0071] In some embodiments of the present invention, one of the electrical connector 30 and the electrical matching component 40 is a male plug and the other is a female plug, so that when the multiple energy storage devices 100 are assembled together along the first direction, it is convenient to realize the electrical connection between the multiple energy storage devices 100, so that the multiple energy storage devices 100 can output current to the outside together.

[0072] In some optional embodiments of the present invention, the switch is integrated into the electrical connector 30 and / or the electrical mating component 40, which makes it easy to reduce the number of components and facilitates the connection of the switch with the positive electrode connection terminal 301, the positive electrode mating terminal 401, the negative electrode connection terminal 302, and the negative electrode mating terminal 402.

[0073] For example, a switch electrically connected to the positive electrode connection terminal 301 and the negative electrode connection terminal 302 is integrated into the electrical connector 30 , and a switch electrically connected to the positive electrode mating terminal 401 and the negative electrode mating terminal 402 is integrated into the electrical mating component 40 .

[0074] In some optional embodiments of the present invention, Figure 4As shown, the power connection component includes a circuit board 55, and the switch is integrated in the circuit board 55. The circuit board 55 is used to connect to the positive and negative electrodes of the battery body 50. The circuit board 55 is used to realize that at least part of the positive electrode connection terminal 301 and the positive electrode of the battery body 50, the positive electrode matching terminal 401 and the positive electrode of the battery body 50, the negative electrode connection terminal 302 and the negative electrode of the battery body 50, and the negative electrode matching terminal 402 and the negative electrode of the battery body 50 are connected through the switch.

[0075] In this way, the electrical connectors 30 and the electrical matching components 40 of adjacent energy storage devices 100 can be electrically connected to electrically connect the multiple battery bodies 50 together, so that the multiple energy storage devices 100 can output power together. The circuit board 55 communicates with the control components of the energy storage device 100 to control the opening and closing of the switch, so as to change the series and parallel relationship of the adjacent battery bodies 50, and thus change the total voltage and total current of the multiple energy storage devices 100.

[0076] In some embodiments of the present invention, Figure 3 As shown, the circuit board 55 is located inside the energy storage device 100 to facilitate protection of the circuit board 55 and to reduce the distance between the circuit board 55 and the battery body 50, thereby reducing the length of the wire and improving the stability of the electrical connection between the circuit board 55 and the battery body 50.

[0077] In some optional embodiments of the present invention, Figure 4 As shown, the circuit board 55 is provided with a first terminal 551 and a second terminal 552, and the first terminal 551 and the second terminal 552 are respectively used to electrically connect to the positive electrode and the negative electrode of the battery body 50 to achieve the connection between the circuit board 55 and the battery body 50, and then the circuit board 55 is used to connect the positive electrode connection terminal 301 and the positive electrode of the battery body 50, the positive electrode matching terminal 401 and the positive electrode of the battery body 50, the negative electrode connection terminal 302 and the negative electrode of the battery body 50, and the negative electrode matching terminal 402 and the negative electrode of the battery body 50 through a switch.

[0078] In some embodiments of the present invention, the power connection assembly further includes a switch panel, which is located inside and / or outside the energy storage device 100, and the switch is integrated in the switch panel.

[0079] The series connection of adjacent battery bodies 50 can be controlled by manually controlling the opening and closing of the switch, or the automatic opening and closing of the switch can be realized by an electrical signal.

[0080] In some embodiments of the present invention, Figure 5 , Figure 6As shown, the electrical connector 30 also includes a first grounding terminal 303, and the electrical matching component 40 also includes a second power connection terminal 403. The first grounding terminal 303 and the second power connection terminal 403 of the adjacent electrical connectors 30 and electrical matching components 40 are electrically connected to ground the energy storage device 100, thereby improving the safety of the energy storage device 100.

[0081] In some embodiments of the present invention, Figure 5 , Figure 6 As shown, the electrical connector 30 includes a plurality of electrical terminals, which are positive electrode connection terminals 301 or negative electrode connection terminals 302 depending on whether the electrical terminals are electrically connected to the positive or negative electrode of the battery body 50. The electrical mating component 40 includes a plurality of electrical terminals, which are positive electrode mating terminals 401 or negative electrode mating terminals 402 depending on whether the electrical terminals are electrically connected to the positive or negative electrode of the battery body 50.

[0082] The arrangement of the positive electrode connection terminal 301 and the negative electrode connection terminal 302 on the electrical connector 30 and the arrangement of the positive electrode matching terminal 401 and the negative electrode matching terminal 402 on the electrical matching component 40 can be designed according to actual needs, and no excessive restrictions are imposed here.

[0083] The energy storage module 1000 according to the embodiment of the present invention is described below. The energy storage module 1000 according to the embodiment of the present invention comprises a plurality of energy storage devices 100 arranged along a first direction, and each energy storage device 100 comprises a power connection assembly of the energy storage device 100 according to the above embodiment of the present invention.

[0084] In some embodiments of the present invention, the energy storage device 100 includes a housing 10, and the electrical connector 30 and the electrical matching component 40 are located on opposite side walls of the housing 10 in a first direction. When multiple energy storage devices 100 are arranged along the first direction, the electrical connectors 30 and the electrical matching components 40 of adjacent energy storage devices 100 are electrically connected to electrically connect the multiple battery bodies 50 together, thereby enabling the multiple energy storage devices 100 to output electricity together.

[0085] The energy storage module 1000 according to the embodiment of the present invention utilizes the power connection assembly of the energy storage device 100 according to the above embodiment of the present invention, and by controlling the opening and closing of different switches, the series and parallel relationship of adjacent battery bodies 50 can be changed, thereby changing the total voltage and total current of multiple energy storage devices 100. This method of changing the series and parallel relationship of adjacent battery bodies 50 is simpler and less prone to errors, and is convenient for improving efficiency and reducing costs.

[0086] In some embodiments of the present invention, at least one of the positive electrode connection terminal 301 and the negative electrode connection terminal 302 is multiple, and at least one of the positive electrode matching terminal 401 and the negative electrode matching terminal 402 is multiple, so as to be able to form multiple circuits. In this way, when controlling the opening and closing of different switches, part of the circuit can be turned on and part of the circuit can be turned off, thereby changing the series and parallel relationship between the two adjacent battery bodies 50.

[0087] In some optional embodiments of the present invention, the number of positive electrode connection terminals 301 is the same as the number of negative electrode matching terminals 402, and the number of negative electrode connection terminals 302 is the same as the number of positive electrode matching terminals 401, so as to be able to form a plurality of different circuits. In this way, when controlling the opening and closing of different switches, part of the circuit can be turned on and part of the circuit can be turned off, thereby changing the series and parallel relationship between two adjacent battery bodies 50.

[0088] In addition, the number of connecting terminals on the electrical connector 30 is the same as the number of mating terminals on the electrical mating component 40, so that the connecting terminals of the electrical connector 30 and the mating terminals of the electrical mating component 40 between two adjacent energy storage devices 100 are electrically connected one by one, thereby electrically connecting multiple battery bodies 50, which facilitates improving the utilization rate of the terminals and reducing waste.

[0089] In some specific embodiments of the present invention, Figure 7 , Figure 8 As shown, the electrical connector 30 includes a first positive electrode connection terminal 31, a second positive electrode connection terminal 32, and a third negative electrode connection terminal 33, and the electrical matching component 40 includes a first negative electrode matching terminal 41, a second positive electrode matching terminal 42, and a third negative electrode matching terminal 43. The first positive electrode connection terminal 31, the second positive electrode connection terminal 32, and the third negative electrode connection terminal 33 of two adjacent energy storage devices 100 are electrically connected to the first negative electrode matching terminal 41, the second positive electrode matching terminal 42, and the third negative electrode matching terminal 43 in a one-to-one correspondence.

[0090] Specifically, the first positive electrode connection terminal 31 of two adjacent energy storage devices 100 is electrically connected to the first negative electrode matching terminal 41 , the second positive electrode connection terminal 32 is electrically connected to the second positive electrode matching terminal 42 , and the third negative electrode connection terminal 33 is electrically connected to the third negative electrode matching terminal 43 .

[0091] Among them, the first positive electrode connection terminal 31 in the same energy storage device 100 is connected to the positive electrode of the battery body 50 through the first switch S1, the first negative electrode matching terminal 41 is electrically connected to the negative electrode of the battery body 50 through the second switch S2, the second positive electrode connection terminal 32 in the same energy storage device 100 is electrically connected to the second positive electrode matching terminal 42, and the second positive electrode connection terminal 32, the second positive electrode matching terminal 42 are electrically connected to the positive electrode of the battery body 50 through the third switch S3, the third negative electrode connection terminal 33 in the same energy storage device 100 is electrically connected to the third negative electrode matching terminal 43, and the third negative electrode connection terminal 33, the third negative electrode matching terminal 43 are electrically connected to the negative electrode of the battery body 50 through the fourth switch S4.

[0092] By controlling the first switch S1, the second switch S2, the third switch S3 and the fourth switch S4 to be closed or opened, multiple battery bodies 50 can be connected in series; or multiple battery bodies 50 can be connected in parallel; or multiple battery bodies 50 can be connected in series first and then in parallel.

[0093] In some embodiments, Fig. 9 As shown, by controlling the first switch S1 and the second switch S2 of each energy storage device 100 to be closed and the other switches to be open, the positive and negative electrodes of two adjacent battery bodies 50 are electrically connected through the first positive electrode connection terminal 31 and the first negative electrode matching terminal 41, thereby realizing the series connection of multiple battery bodies 50.

[0094] Specifically, for the multiple energy storage devices 100 , the multiple energy storage devices 100 are arranged along the first direction, for example, three, four, five, six or more energy storage devices 100 .

[0095] The first switch S1 and the second switch S2 of each energy storage device 100 are closed, and the remaining switches are opened, so that the battery bodies 50 of the multiple energy storage devices 100 are connected in series.

[0096] Among them, in the first direction, the energy storage devices 100 at both ends of the first direction are respectively called the first and the last energy storage devices 100, and even if other switches of the first energy storage device 100 and the last energy storage device 100 are closed, it does not affect the overall series relationship.

[0097] In some embodiments, Fig.10 As shown, by controlling the third switch S3 and the fourth switch S4 of each energy storage device 100 to be closed and the other switches to be open, the positive electrodes of two adjacent battery bodies 50 are electrically connected through the second positive electrode connection terminal 32 and the second positive electrode matching terminal 42, and the negative electrodes of two adjacent battery bodies 50 are electrically connected through the third negative electrode connection terminal 33 and the third negative electrode matching terminal 43, thereby realizing parallel connection of multiple battery bodies 50.

[0098] Specifically, for the multiple energy storage devices 100 , the multiple energy storage devices 100 are arranged along the first direction, for example, three, four, five, six or more energy storage devices 100 .

[0099] The third switch S3 and the fourth switch S4 of each energy storage device 100 are closed, and the remaining switches are opened, so that the battery bodies 50 of the multiple energy storage devices 100 are connected in parallel.

[0100] Among them, in the first direction, the energy storage devices 100 at both ends of the first direction among the multiple energy storage devices 100 are called the first and the last, and even if other switches of the first energy storage device 100 and the last energy storage device 100 are closed, it does not affect the overall parallel relationship.

[0101] In some embodiments, by controlling the switch closing modes of different energy storage devices 100 to be different, multiple battery bodies 50 can be connected in series first and then in parallel.

[0102] In some examples, such as Fig.11 As shown, the energy storage module 1000 includes four energy storage devices 100 , and the four energy storage devices 100 are arranged along a first direction.

[0103] By controlling the switch, the first battery body 50 and the second battery body 50 can be connected in series, the third battery body 50 and the fourth battery body 50 can be connected in series, and then the first battery body 50 and the second battery body 50, the third battery body 50 and the fourth battery body 50 can be connected in parallel.

[0104] Specifically, the second switch S2 and the third switch S3 of the first energy storage device 100 and the energy storage device 100 are closed, and the other switches are opened; the first switch S1 and the fourth switch S4 of the second energy storage device 100 and the fourth energy storage device 100 are closed, and the other switches are opened.

[0105] The negative electrode of the first battery body 50 and the positive electrode of the second battery body 50 are electrically connected through the first negative electrode matching terminal 41 and the first positive electrode connecting terminal 31, thereby realizing the series connection of the first battery body 50 and the second battery body 50; the negative electrode of the third battery body 50 and the positive electrode of the fourth battery body 50 are electrically connected through the first negative electrode matching terminal 41 and the first positive electrode connecting terminal 31, thereby realizing the series connection of the third battery body 50 and the fourth battery body 50.

[0106] At the same time, the positive electrode of the first battery body 50 and the positive electrode of the third battery body 50 are electrically connected through the adjacent second positive electrode connecting terminal 32 and the second positive electrode matching terminal 42, and the negative electrode of the first battery body 50 and the negative electrode of the fourth battery body 50 are electrically connected through the adjacent third negative electrode connecting terminal 33 and the third negative electrode matching terminal 43, so as to realize the parallel connection of the first battery body 50 and the second battery body 50, the third battery body 50 and the fourth battery body 50.

[0107] In some embodiments, the energy storage module 1000 includes a battery system control unit, which has position information of multiple battery bodies 50, and further controls which switches in the energy storage device 100 are opened and which switches are closed, so as to flexibly realize the series and parallel relationship of multiple battery bodies 50.

[0108] In some embodiments, Figure 7 As shown, the energy storage module 1000 also includes an output component 70, which includes a positive output terminal 71 and a negative output terminal 72. The output component 70 is plugged into and matched with the electrical connector 30 at one end of the energy storage module 1000 in the first direction, the positive output terminal 71 is electrically connected to the positive connection terminal 301, and the negative output terminal 72 is electrically connected to the negative connection terminal 302.

[0109] Among them, since the third negative electrode connection terminal 33 and the third negative electrode matching terminal 43 of the same energy storage device 100 are electrically connected, and the third negative electrode matching terminals 43 and the third positive electrode connection terminal 301 of two adjacent energy storage devices 100 are electrically connected, the negative electrode output terminal 72 is electrically connected to the negative electrodes of all battery bodies 50 through the fourth switch S4 to form a circuit, and then the output component 70 is used to output current to the outside.

[0110] In some examples, the energy storage module 1000 also includes a base 81, and a conductive connector 811 is provided on one side of the base 81 in the first direction. The fourth energy storage device 100 is located above the base 81, and the electrical fitting 40 of the fourth energy storage device 100 cooperates with the conductive connector 811, so that the first negative electrode fitting end 41 and the third negative electrode fitting end 43 of the electrical fitting 40 of the fourth energy storage device 100 are connected by the conductive connector 811, and then when the second switch S2 of the fourth energy storage device 100 is closed, the negative electrode output terminal 72 and the negative electrode of the fourth battery body 50 are connected by the conductive connector 811 to form a circuit.

[0111] In some embodiments, the energy storage module 1000 may also include three energy storage devices 100, five energy storage devices 100, six or more energy storage devices 100, and the switching logic thereof is the same as the above logic, which will not be described in detail here.

[0112] In addition, in this embodiment, the first battery body 50, the second battery body 50 and the third battery body 50 can be connected in series and then connected in parallel with the fourth battery body 50; or the second battery body 50, the third battery body 50 and the fourth battery body 50 can be connected in series and then connected in parallel with the first battery body 50. The switch control logic is the same as the above logic and will not be described in detail here.

[0113] In some specific embodiments of the present invention, Fig.12 , Fig.13 As shown, the electrical connector 30 also includes a fourth positive electrode connection terminal 34 and a fifth negative electrode connection terminal 35, and the electrical matching component 40 also includes a fourth positive electrode matching terminal 44 and a fifth negative electrode matching terminal 45. The fourth positive electrode connection terminal 34 and the fifth negative electrode connection terminal 35 of two adjacent energy storage devices 100 are electrically connected to the fourth positive electrode matching terminal 44 and the fifth negative electrode matching terminal 45 in a one-to-one correspondence.

[0114] Specifically, the first positive electrode connection terminal 31 of two adjacent energy storage devices 100 is electrically connected to the first negative electrode matching terminal 41, the second positive electrode connection terminal 32 is electrically connected to the second positive electrode matching terminal 42, the third negative electrode connection terminal 33 is electrically connected to the third negative electrode matching terminal 43, the fourth positive electrode connection terminal 34 is electrically connected to the fourth positive electrode matching terminal 44, and the fifth negative electrode connection terminal 35 is electrically connected to the fifth negative electrode matching terminal 45.

[0115] Among them, the fourth positive electrode connection terminal 34 of the energy storage device 100 is electrically connected to the positive electrode of the battery body 50 through the fifth switch S5, the fourth positive electrode matching terminal 44 is electrically connected to the positive electrode of the battery body 50 through the sixth switch S6, the fifth negative electrode connection terminal 35 is electrically connected to the negative electrode of the battery body 50 through the seventh switch S7, and the fifth negative electrode matching terminal 45 is electrically connected to the negative electrode of the battery body 50 through the eighth switch S8.

[0116] By controlling the closing or opening of the first switch S1, the second switch S2, the third switch S3, the fourth switch S4, the fifth switch S5, the sixth switch S6, the seventh switch S7 and the eighth switch S8, multiple battery bodies 50 can be connected in series; or multiple battery bodies 50 can be connected in parallel; or multiple battery bodies 50 can be connected in series first and then in parallel; or multiple battery bodies 50 can be connected in parallel first and then in series.

[0117] In some embodiments, Fig.14 As shown, by controlling the first switch S1 and the second switch S2 of each energy storage device 100 to be closed and the other switches to be open, the positive and negative electrodes of two adjacent battery bodies 50 are electrically connected through the first positive electrode connection terminal 31 and the first negative electrode matching terminal 41, thereby realizing the connection of multiple battery bodies 50 in series.

[0118] Specifically, for the multiple energy storage devices 100 , the multiple energy storage devices 100 are arranged along the first direction, for example, three, four, five, six or more energy storage devices 100 .

[0119] The first switch S1 and the second switch S2 of each energy storage device 100 are closed, and the remaining switches are opened, so that the battery bodies 50 of the multiple energy storage devices 100 are connected in series.

[0120] Among them, in the first direction, the energy storage devices 100 at both ends of the first direction are respectively called the first and the last energy storage devices 100, and even if other switches of the first energy storage device 100 and the last energy storage device 100 are closed, it does not affect the overall series relationship.

[0121] In some embodiments, Fig.15 As shown, by controlling the third switch S3 and the fourth switch S4 of each energy storage device 100 to be closed and the other switches to be open, the positive electrodes of two adjacent battery bodies 50 are electrically connected through the second positive electrode connection terminal 32 and the second positive electrode matching terminal 42, and the negative electrodes of two adjacent battery bodies 50 are electrically connected through the third negative electrode connection terminal 33 and the third negative electrode matching terminal 43, thereby realizing parallel connection of multiple battery bodies 50.

[0122] Specifically, for the multiple energy storage devices 100 , the multiple energy storage devices 100 are arranged along the first direction, for example, three, four, five, six or more energy storage devices 100 .

[0123] The third switch S3 and the fourth switch S4 of each energy storage device 100 are closed, and the remaining switches are opened, so that the battery bodies 50 of the multiple energy storage devices 100 are connected in parallel.

[0124] Among them, in the first direction, the energy storage devices 100 at both ends of the first direction among the multiple energy storage devices 100 are called the first and the last, and even if other switches of the first energy storage device 100 and the last energy storage device 100 are closed, it does not affect the overall parallel relationship.

[0125] In addition, the fifth switch S5 and the sixth switch S6 can be closed simultaneously to replace the closing of the third switch S3; the seventh switch S7 and the eighth switch S8 can be closed simultaneously to replace the closing of the fourth switch S4. That is, the fifth switch S5, the sixth switch S6, the seventh switch S7 and the eighth switch S8 of each energy storage device 100 are closed, and the remaining switches are disconnected, so that the positive electrodes of two adjacent battery bodies 50 are electrically connected through the fourth positive electrode connection terminal 34 and the fourth positive electrode matching terminal 44, and the negative electrodes of two adjacent battery bodies 50 are electrically connected through the fifth negative electrode connection terminal 35 and the fifth negative electrode matching terminal 45, and multiple battery bodies 50 can also be connected in parallel.

[0126] In some embodiments, Fig.16 As shown, the energy storage module 1000 includes four energy storage devices 100 , and the four energy storage devices 100 are arranged along a first direction.

[0127] By controlling the switch, the first battery body 50 and the second battery body 50 can be connected in series, the third battery body 50 and the fourth battery body 50 can be connected in series, and then the first battery body 50 and the second battery body 50, the third battery body 50 and the fourth battery body 50 can be connected in parallel, so that multiple battery bodies 50 are first connected in series and then in parallel.

[0128] Specifically, the second switch S2 and the third switch S3 of the first energy storage device 100 and the third energy storage device 100 are closed, and the other switches are opened; the first switch S1 and the fourth switch S4 of the second energy storage device 100 and the fourth energy storage device 100 are closed, and the other switches are opened.

[0129] The negative electrode of the first battery body 50 and the positive electrode of the second battery body 50 are electrically connected through the first negative electrode matching terminal 41 and the first positive electrode connecting terminal 31, thereby realizing the series connection of the first battery body 50 and the second battery body 50; the negative electrode of the third battery body 50 and the positive electrode of the fourth battery body 50 are electrically connected through the first negative electrode matching terminal 41 and the first positive electrode connecting terminal 31, thereby realizing the series connection of the third battery body 50 and the fourth battery body 50.

[0130] At the same time, the positive electrode of the first battery body 50 and the positive electrode of the third battery body 50 are electrically connected through the adjacent second positive electrode connecting terminal 32 and the second positive electrode matching terminal 42, and the negative electrode of the first battery body 50 and the negative electrode of the fourth battery body 50 are electrically connected through the adjacent third negative electrode connecting terminal 33 and the third negative electrode matching terminal 43, so as to realize the parallel connection of the first battery body 50 and the second battery body 50, the third battery body 50 and the fourth battery body 50.

[0131] In addition, the closing of the third switch S3 of the first energy storage device 100 may be replaced by the first switch S1 or the fifth switch S5, or one, two or all of the first switch S1, the third switch S3 and the fifth switch S5 may be closed.

[0132] According to the same logic, other switches in other energy storage devices 100 may also not affect the relationship between the multiple battery bodies 50 when closed, which will not be repeated here.

[0133] In some embodiments, Fig.17As shown, the first battery body 50 , the second battery body 50 , and the third battery body 50 may be connected in series and then connected in parallel with the fourth battery body 50 .

[0134] Specifically, the third switch S3 and the second switch S2 of the first energy storage device 100 are closed, and the remaining switches are opened; the first switch S1 and the second switch S2 of the second energy storage device 100 are closed, and the remaining switches are opened; the first switch S1 and the fourth switch S4 of the third energy storage device 100 are closed, and the remaining switches are opened; the third switch S3 and the fourth switch S4 of the fourth energy storage device 100 are closed, and the remaining switches are opened.

[0135] Obviously, the closing of the third switch S3 of the first battery body 50 can be replaced by the first switch S1 and the fifth switch S5, or one, two or all of the first switch S1, the third switch S3 and the fifth switch S5 can be closed.

[0136] According to the same logic, other switches in other energy storage devices 100 may also not affect the relationship between the multiple battery bodies 50 when closed, which will not be repeated here.

[0137] By extending the above two methods of first connecting multiple batteries in series and then connecting them in parallel, any combination of any number of battery bodies 50 can be realized, for example, the second battery body 50, the third battery body 50 and the fourth battery body 50 are connected in series and then in parallel with the first battery body 50, etc., which will not be elaborated here.

[0138] In some embodiments, Fig.18 As shown, the energy storage module 1000 includes four energy storage devices 100 , and the four energy storage devices 100 are arranged along a first direction.

[0139] By controlling the switch, the first battery body 50 and the second battery body 50 can be connected in parallel, the third battery body 50 and the fourth battery body 50 can be connected in parallel, and then the first battery body 50 and the second battery body 50, and the third battery body 50 and the fourth battery body 50 can be connected in series, that is, multiple battery bodies 50 are first connected in parallel and then in series.

[0140] Specifically, the first switch S1, the sixth switch S6 and the eighth switch S8 of the first energy storage device 100 and the third energy storage device 100 are closed, and the other switches are opened; the fifth switch S5, the seventh switch S7 and the second switch S2 of the second energy storage device 100 and the fourth energy storage device 100 are closed, and the other switches are opened.

[0141] In this way, the positive electrode of the first battery body 50 and the positive electrode of the second battery body 50 are electrically connected through the fourth positive electrode matching terminal 44 and the fourth positive electrode connecting terminal 34, and the negative electrode of the first battery body 50 and the negative electrode of the second battery body 50 are electrically connected through the fifth negative electrode matching terminal 45 and the fifth negative electrode connecting terminal 35, so as to connect the first battery body 50 and the second battery body 50 in parallel.

[0142] The positive electrode of the third battery body 50 and the positive electrode of the fourth battery body 50 are electrically connected through the fourth positive electrode matching terminal 44 and the fourth positive electrode connecting terminal 34, and the negative electrode of the third battery body 50 and the negative electrode of the fourth battery body 50 are electrically connected through the fifth negative electrode matching terminal 45 and the fifth negative electrode connecting terminal 35, so as to connect the third battery body 50 and the fourth battery body 50 in parallel.

[0143] Among them, the negative electrode of the second battery body 50 and the negative electrode of the third battery body 50 are electrically connected through the first negative electrode matching terminal 41 and the first positive electrode connection terminal 31, so as to connect the second battery body 50 and the third battery body 50 in series, and then connect the first battery body 50 and the second battery body 50 in parallel, connect the third battery body 50 and the fourth battery body 50 in parallel, and then connect the first battery body 50 and the second battery body 50, the third battery body 50 and the fourth battery body 50 in series.

[0144] Obviously, for the first energy storage device 100, closing the first switch S1, the sixth switch S6 and the eighth switch S8 or closing the first switch S1, the fifth switch S5, the sixth switch S6 and the eighth switch S8 achieves the same effect. For other switches in other energy storage devices 100, they can also be closed without affecting the relationship between the multiple battery bodies 50, which will not be repeated here.

[0145] In some embodiments, Fig.19 As shown, the first battery body 50 , the second battery body 50 , and the third battery body 50 may be connected in parallel and then connected in series with the fourth battery body 50 .

[0146] Specifically, the first switch S1, the sixth switch S6 and the eighth switch S8 of the first energy storage device 100 are closed, and the other switches are turned on; the fifth switch S5, the sixth switch S6, the seventh switch S7 and the eighth switch S8 of the second energy storage device 100 are closed, and the other switches are turned off; the fifth switch S5, the seventh switch S7 and the second switch S2 of the third energy storage device 100 are closed, and the other switches are turned off; the first switch S1 and the second switch S2 of the fourth energy storage device 100 are closed, and the other switches are turned off.

[0147] Obviously, the closing of the first switch S1 of the first battery body 50 can be replaced by the third switch S3 or the fifth switch S5, or one, two or all of the first switch S1, the third switch S3 and the fifth switch S5 can be closed.

[0148] According to the same logic, other switches in other energy storage devices 100 may also not affect the relationship between the multiple battery bodies 50 when closed, which will not be repeated here.

[0149] By extending the above two methods of first connecting multiple batteries in parallel and then connecting them in series, any combination of first parallel and then series connection between any number of battery groups can be realized, for example, the second battery body 50, the third battery body 50 and the fourth battery body 50 are connected in parallel and then connected in series with the first battery body 50, etc., which will not be elaborated here.

[0150] In some embodiments, the energy storage module 1000 includes a battery system control unit, which has position information of multiple battery bodies 50, and further controls which switches in the energy storage device 100 are opened and which switches are closed, so as to flexibly realize the series and parallel relationship of multiple battery bodies 50.

[0151] In some embodiments, the energy storage module 1000 further includes an output component 70, the output component 70 includes a positive output terminal 71 and a negative output terminal 72, the output component 70 is plugged into and matched with the electrical connector 30 at one end of the energy storage module 1000 in the first direction, the positive output terminal 71 is electrically connected to the positive connection terminal 301, and the negative output terminal 72 is electrically connected to the negative connection terminal 302.

[0152] Among them, since the third negative electrode connection terminal 33 and the third negative electrode matching terminal 43 of the same energy storage device 100 are electrically connected, and the third negative electrode matching terminals 43 and the third positive electrode connection terminal 301 of two adjacent energy storage devices 100 are electrically connected, the negative electrode output terminal 72 is electrically connected to the negative electrodes of all battery bodies 50 through the fourth switch S4 to form a circuit, and then the output component 70 is used to output current to the outside.

[0153] In some examples, the energy storage module 1000 also includes a base 81, and a conductive connector 811 is provided on one side of the base 81 in the first direction. The fourth energy storage device 100 is located above the base 81, and the electrical fitting 40 of the fourth energy storage device 100 cooperates with the conductive connector 811, so that the first negative electrode fitting end 41 and the third negative electrode fitting end 43 of the electrical fitting 40 of the fourth energy storage device 100 are connected by the conductive connector 811, and then when the second switch S2 of the fourth energy storage device 100 is closed, the negative electrode output terminal 72 and the negative electrode of the fourth battery body 50 are connected by the conductive connector 811 to form a circuit.

[0154] In some embodiments of the present invention, Fig. 20 , Fig.21 As shown, the electrical connector 30 includes a first positive electrode connection terminal 31, a fourth positive electrode connection terminal 34 and a fifth negative electrode connection terminal 35, and the electrical matching component 40 includes a first negative electrode matching terminal 41, a fourth positive electrode matching terminal 44 and a fifth negative electrode matching terminal 45. The first positive electrode connection terminal 31, the fourth positive electrode connection terminal 34, and the fifth negative electrode connection terminal 35 of two adjacent energy storage devices 100 are electrically connected to the first negative electrode matching terminal 41, the fourth positive electrode matching terminal 44 and the fifth negative electrode matching terminal 45 in a one-to-one correspondence.

[0155] Specifically, the first positive electrode connection terminal 31 of two adjacent energy storage devices 100 is electrically connected to the first negative electrode matching terminal 41 , the fourth positive electrode connection terminal 34 is electrically connected to the fourth positive electrode matching terminal 44 , and the fifth negative electrode connection terminal 35 is electrically connected to the fifth negative electrode matching terminal 45 .

[0156] Among them, the first positive electrode connection terminal 31 is connected to the positive electrode through the first switch S1, the first negative electrode matching terminal 41 is electrically connected to the negative electrode of the battery body 50 through the second switch S2, the fourth positive electrode connection terminal 34 of the energy storage device 100 is electrically connected to the positive electrode of the battery body 50 through the fifth switch S5, the fourth positive electrode matching terminal 44 is electrically connected to the positive electrode of the battery body 50 through the sixth switch S6, the fifth negative electrode connection terminal 35 is electrically connected to the negative electrode of the battery body 50 through the seventh switch S7, and the fifth negative electrode matching terminal 45 is electrically connected to the negative electrode of the battery body 50 through the eighth switch S8.

[0157] By controlling the closing or opening of the first switch S1, the second switch S2, the fifth switch S5, the sixth switch S6, the seventh switch S7 and the eighth switch S8, multiple battery bodies 50 can be connected in series; or multiple battery bodies 50 can be connected in parallel; or multiple battery bodies 50 can be connected in parallel first and then in series.

[0158] In some embodiments, Fig. 22 As shown, by controlling the first switch S1 and the second switch S2 of each energy storage device 100 to be closed and the other switches to be open, the positive and negative electrodes of two adjacent battery bodies 50 are electrically connected through the first positive electrode connection terminal 31 and the first negative electrode matching terminal 41, thereby realizing the series connection of multiple battery bodies 50.

[0159] Specifically, for the multiple energy storage devices 100 , the multiple energy storage devices 100 are arranged along the first direction, for example, three, four, five, six or more energy storage devices 100 .

[0160] The first switch S1 and the second switch S2 of each energy storage device 100 are closed, and the remaining switches are opened, so that the battery bodies 50 of the multiple energy storage devices 100 are connected in series.

[0161] Among them, in the first direction, the energy storage devices 100 at both ends of the first direction are respectively called the first and the last energy storage devices 100, and even if other switches of the first energy storage device 100 and the last energy storage device 100 are closed, it does not affect the overall series relationship.

[0162] In some embodiments, Fig.23 As shown, by controlling the fifth switch S5, the sixth switch S6, the seventh switch S7 and the eighth switch S8 of each energy storage device 100 to be closed and the remaining switches to be opened, the positive electrodes of two adjacent battery bodies 50 are electrically connected through the fourth positive electrode connection terminal 34 and the fourth positive electrode matching terminal 44, and the negative electrodes of two adjacent battery bodies 50 are electrically connected through the fifth negative electrode connection terminal 35 and the fifth negative electrode matching terminal 45.

[0163] Specifically, for the multiple energy storage devices 100 , the multiple energy storage devices 100 are arranged along the first direction, for example, three, four, five, six or more energy storage devices 100 .

[0164] Each of the fifth switch S5 , the sixth switch S6 , the seventh switch S7 and the eighth switch S8 is closed, and the remaining switches are opened, so that the battery bodies 50 of the plurality of energy storage devices 100 are connected in parallel.

[0165] Among them, in the first direction, the energy storage devices 100 at both ends of the first direction among the multiple energy storage devices 100 are respectively called the first and the last energy storage devices 100, and even if other switches of the first energy storage device 100 and the last energy storage device 100 are closed, it does not affect the overall parallel relationship.

[0166] In some embodiments, Fig.24 As shown, by controlling the switch, the first battery body 50 and the second battery body 50 can be connected in parallel, the third battery body 50 and the fourth battery body 50 can be connected in parallel, and then the first battery body 50 and the second battery body 50, the third battery body 50 and the fourth battery body 50 can be connected in series.

[0167] Specifically, the first switch S1, the sixth switch S6 and the eighth switch S8 of the first energy storage device 100 and the third energy storage device 100 are closed, and the other switches are opened; the fifth switch S5, the seventh switch S7 and the second switch S2 of the second energy storage device 100 and the fourth energy storage device 100 are closed, and the other switches are opened.

[0168] In this way, the positive electrode of the first battery body 50 and the positive electrode of the second battery body 50 are electrically connected through the fourth positive electrode matching terminal 44 and the fourth positive electrode connecting terminal 34, and the negative electrode of the first battery body 50 and the negative electrode of the second battery body 50 are electrically connected through the fifth negative electrode matching terminal 45 and the fifth negative electrode connecting terminal 35, so as to connect the first battery body 50 and the second battery body 50 in parallel.

[0169] The positive electrode of the third battery body 50 and the positive electrode of the fourth battery body 50 are electrically connected through the fourth positive electrode matching terminal 44 and the fourth positive electrode connecting terminal 34, and the negative electrode of the third battery body 50 and the negative electrode of the fourth battery body 50 are electrically connected through the fifth negative electrode matching terminal 45 and the fifth negative electrode connecting terminal 35, so as to connect the third battery body 50 and the fourth battery body 50 in parallel.

[0170] Among them, the negative electrode of the second battery body 50 and the negative electrode of the third battery body 50 are electrically connected through the first negative electrode matching terminal 41 and the first positive electrode connection terminal 31, so as to connect the second battery body 50 and the third battery body 50 in series, and then connect the first battery body 50 and the second battery body 50 in parallel, connect the third battery body 50 and the fourth battery body 50 in parallel, and then connect the first battery body 50 and the second battery body 50, the third battery body 50 and the fourth battery body 50 in series.

[0171] In some embodiments, the energy storage module 1000 includes a battery system control unit, which has position information of multiple battery bodies 50, and further controls which switches in the energy storage device 100 are opened and which switches are closed, so as to flexibly realize the series and parallel relationship of multiple battery bodies 50.

[0172] In some embodiments, Fig. 20 As shown, the energy storage module 1000 also includes an output component 70, which includes a positive output terminal 71 and a negative output terminal 72. The output component 70 is plugged into and matched with the electrical connector 30 at one end of the energy storage module 1000 in the first direction, the positive output terminal 71 is electrically connected to the positive connection terminal 301, and the negative output terminal 72 is electrically connected to the negative connection terminal 302.

[0173] The electrical connector 30 also includes a functional connection end 38 , and the electrical matching component 40 includes a functional matching end 48 . The functional connection end 38 of the same energy storage device 100 is electrically connected to the functional matching end 48 , and the functional connection ends 38 and functional matching ends 48 of two adjacent energy storage devices 100 are electrically connected.

[0174] Among them, the energy storage module 1000 also includes a base 81, and a conductive connector 811 is provided on one side of the base 81 in the first direction. The fourth energy storage device 100 is located above the base 81, and the electrical matching component 40 of the fourth energy storage device 100 cooperates with the conductive connector 811, so as to utilize the conductive connector 811 to connect the first negative electrode matching end 41 and the functional matching end 48 of the electrical matching component 40 of the fourth energy storage device 100, and connect the fifth negative electrode matching end 45 and the functional matching end 48 of the electrical matching component 40 of the fourth energy storage device 100, so as to utilize the conductive connector 811 to connect the negative electrode output end 72 and the negative electrode of the fourth battery body 50 when the second switch S2 or the eighth switch S8 of the fourth energy storage device 100 is closed, so as to form a circuit.

[0175] In some embodiments of the present invention, Figure 7 , Figure 8 As shown, the energy storage module 1000 also includes an output member 70, which includes a positive output terminal 71 and a negative output terminal 72. The output member 70 is plugged into and matched with an electrical connector 30 located at one end of the energy storage module 1000 in the first direction, the positive output terminal 71 is electrically connected to the positive connection terminal 301, and the negative output terminal 72 is electrically connected to the negative connection terminal 302, so that the energy storage module 1000 outputs current to the outside through the output member 70.

[0176] In some embodiments, the negative electrode output terminal 72 is also electrically connected to the negative electrode mating terminal 402 located at the other end of the energy storage module 1000 in the first direction. When the battery body 50 located at the other end of the energy storage module 1000 in the first direction is connected in series with the previous battery body 50, a circuit is formed by the electrical connection between the negative electrode mating terminal 402 and the negative electrode output terminal 72, and then current is output to the outside through the output component 70.

[0177] In some optional embodiments of the present invention, Fig. 20 , Fig.21 As shown, the electrical connector 30 also includes a functional connection terminal 38, and the electrical matching component 40 includes a functional matching terminal 48. The functional connection terminal 38 of the same energy storage device 100 is electrically connected to the functional matching terminal 48, and the functional connection terminals 38 and functional matching terminals 48 of two adjacent energy storage devices 100 are electrically connected. The functional connection terminal 38 of the energy storage module 1000 at one end in the first direction is electrically connected to the output component 70, and the functional matching terminal 48 of the electrical matching component 40 of the energy storage module 1000 at the other end in the first direction is electrically connected to the positive electrode matching terminal 401 and / or the negative electrode matching terminal 402. In this way, when the positive electrode matching terminal 401 and / or the negative electrode matching terminal 402 at the end of the energy storage module 1000 in the first direction are electrically connected to the battery body 50, the current can reach the output component 70 through the functional matching terminal 48 and the functional connection terminal 38, and then output the current outward through the output component 70.

[0178] Among them, whether the positive electrode matching end 401 and / or the negative electrode matching end 402 of the energy storage module 1000 at the end in the first direction are electrically connected to the battery body 50 depends on the opening and closing status of the switch, and no excessive restrictions are made here.

[0179] In some embodiments, the functional connection terminal 38 of the electrical connector 30 located at one end of the energy storage module 1000 in the first direction is electrically connected to the negative output terminal 72, and the negative matching terminal 402 of the electrical matching component 40 located at the other end of the energy storage module 1000 in the first direction is electrically connected to the functional matching terminal 48, so that when the battery body 50 located at the other end of the energy storage module 1000 in the first direction is connected in series with the previous battery body 50, the electrical connection between the negative matching terminal 402 and the functional matching terminal 48 and the functional connection terminal 38 is used to form a circuit, and then output current to the outside through the output component 70.

[0180] Among them, the functional connection terminal 38 is integrated on the electrical connector 30, and the functional matching terminal 48 is integrated on the electrical matching component 40, so as to reduce the connection of the lines. In this way, after assembling multiple energy storage devices 100 along the first direction, the negative electrode output terminal 72 can be connected with the negative electrode matching terminal 402 of the electrical matching component 40 at the other end of the energy storage module 1000 in the first direction, so as to reduce the difficulty of operation.

[0181] In some embodiments, the energy storage module 1000 also includes a base 81, and a conductive connector 811 is provided on one side of the base 81 in the first direction. Multiple energy storage devices 100 are located above the base 81 in the first direction. The electrical fitting 40 at the other end of the energy storage module 1000 in the first direction cooperates with the conductive connector 811, so as to utilize the conductive connector 811 to connect the negative electrode fitting end 402 and the functional fitting end 48 of its electrical fitting 40, so that the negative electrode of the battery body 50 located at the other end of the energy storage module 1000 in the first direction is electrically connected to the functional fitting end 48 through the conductive connector 811, and then electrically connected to the negative electrode output end 72.

[0182] In some optional embodiments of the present invention, one of the electrical connector 30 and the electrical matching component 40 is a male plug and the other is a female plug, so that when the multiple energy storage devices 100 are assembled together along the first direction, it is convenient to realize the electrical connection between the multiple energy storage devices 100, so that the multiple energy storage devices 100 can output current to the outside together.

[0183] In some embodiments, one of the output member 70 and the electrical connector 30 is a male plug and the other is a female plug, so as to facilitate the electrical coordination between the output member 70 and the electrical connector 30, so that the positive output terminal 71 is electrically connected to the positive connection terminal 301, and the negative output terminal 72 is electrically connected to the negative connection terminal 302.

[0184] Other structures and operations of the energy storage module 1000 according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail here.

[0185] The following describes an electric device according to an embodiment of the present invention. The electric device according to an embodiment of the present invention includes an energy storage module 1000 according to the above embodiment of the present invention.

[0186] According to the electrical equipment of the embodiment of the present invention, by utilizing the energy storage module 1000 according to the above-mentioned embodiment of the present invention, by controlling the opening and closing of different switches, the series and parallel relationship of adjacent battery bodies 50 can be changed, and then the total voltage and total current of multiple energy storage devices 100 can be changed. This method of changing the series and parallel relationship of adjacent battery bodies 50 is simpler and less prone to errors, which is convenient for improving efficiency and reducing costs.

[0187] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more. In the description of the present invention, the first feature "above" or "below" the second feature may include the first and second features being in direct contact, or the first and second features not being in direct contact but being in contact through another feature between them.

[0188] In the description of the present invention, “on”, “over” and “above” a first feature from a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0189] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0190] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0191] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A power connection assembly for an energy storage device, characterized in that: The power connection assembly comprises: An electrical connector (30) and an electrical matching component (40), wherein the electrical connector (30) and the electrical matching component (40) are located at two ends of the energy storage device (100) in a first direction, and the electrical connector (30) and the electrical matching component (40) of the energy storage device (100) adjacent to each other in the first direction are electrically connected, the electrical connector (30) comprising a positive electrode connection end (301) and a negative electrode connection end (302), and the electrical matching component (40) comprising a positive electrode matching end (401) and a negative electrode matching end (402); A plurality of switches, wherein at least part of the positive electrode connection terminal (301) and the positive electrode of the battery body (50) of the energy storage device (100), the positive electrode matching terminal (401) and the positive electrode of the battery body (50), the negative electrode connection terminal (302) and the negative electrode of the battery body (50), and the negative electrode matching terminal (402) and the negative electrode of the battery body (50) are connected via the switches, and the electrical connection state of adjacent energy storage devices (100) is changed by controlling the opening and closing of different switches.

2. The power connection assembly of the energy storage device according to claim 1, characterized in that: One of the electrical connector (30) and the electrical matching component (40) is a male plug, and the other is a female plug.

3. The power connection assembly of the energy storage device according to claim 1, characterized in that: The switch is integrated into the electrical connection piece (30) and / or the electrical matching piece (40).

4. The power connection assembly of the energy storage device according to claim 1, characterized in that: The power connection assembly comprises a circuit board (55), the switch is integrated in the circuit board (55), and the circuit board (55) is used to connect to the positive electrode and the negative electrode of the battery body (50) and communicate with the control component of the energy storage device (100) to control the opening and closing of the switch.

5. The power connection assembly of the energy storage device according to claim 4, characterized in that: The circuit board (55) is located inside the energy storage device (100).

6. The power connection assembly of the energy storage device according to claim 5, characterized in that: The circuit board (55) is provided with a first terminal (551) and a second terminal (552), and the first terminal (551) and the second terminal (552) are respectively used to be electrically connected to the positive electrode and the negative electrode of the battery body (50).

7. The power connection assembly of the energy storage device according to claim 1, characterized in that: It also includes a switch panel, which is located inside and / or outside the energy storage device (100), and the switch is integrated in the switch panel.

8. An energy storage module, characterized in that: It comprises a plurality of energy storage devices (100), wherein the plurality of energy storage devices (100) are stacked and arranged, and each of the energy storage devices (100) comprises the power connection assembly as claimed in any one of claims 1 to 7 and a battery body (50).

9. The energy storage module according to claim 8, characterized in that: At least one of the positive electrode connection terminal (301) and the negative electrode connection terminal (302) is plural; At least one of the positive electrode matching terminal (401) and the negative electrode matching terminal (402) is plural.

10. The energy storage module according to claim 9, characterized in that: The electrical connector (30) comprises a first positive electrode connection terminal (31), a second positive electrode connection terminal (32), and a third negative electrode connection terminal (33); the electrical matching component (40) comprises a first negative electrode matching terminal (41), a second positive electrode matching terminal (42), and a third negative electrode matching terminal (43); the first positive electrode connection terminal (31), the second positive electrode connection terminal (32), and the third negative electrode connection terminal (33) of two adjacent energy storage devices (100) are electrically connected to the first negative electrode matching terminal (41), the second positive electrode matching terminal (42), and the third negative electrode matching terminal (43) in a one-to-one correspondence; The first positive electrode connection terminal (31) is connected to the positive electrode of the battery body (50) via a first switch (S1), and the first negative electrode matching terminal (41) is electrically connected to the negative electrode of the battery body (50) via a second switch (S2). The second positive electrode connection terminal (32) in the same energy storage device (100) is electrically connected to the second positive electrode matching terminal (42), and the second positive electrode connection terminal (32), the second positive electrode matching terminal (42) are electrically connected to the positive electrode of the battery body (50) through a third switch (S3); the third negative electrode connection terminal (33) in the same energy storage device (100) is electrically connected to the third negative electrode matching terminal (43), and the third negative electrode connection terminal (33), the third negative electrode matching terminal (43) are electrically connected to the negative electrode of the battery body (50) through a fourth switch (S4).

11. The energy storage module according to claim 10, characterized in that: The electrical connector (30) further comprises a fourth positive electrode connection terminal (34) and a fifth negative electrode connection terminal (35); the electrical matching component (40) further comprises a fourth positive electrode matching terminal (44) and a fifth negative electrode matching terminal (45); the fourth positive electrode connection terminal (34) and the fifth negative electrode connection terminal (35) of two adjacent energy storage devices (100) are electrically connected to the fourth positive electrode matching terminal (44) and the fifth negative electrode matching terminal (45) in a one-to-one correspondence; The fourth positive electrode connection terminal (34) of the energy storage device (100) is electrically connected to the positive electrode of the battery body (50) via a fifth switch (S5), the fourth positive electrode matching terminal (44) is electrically connected to the positive electrode of the battery body (50) via a sixth switch (S6), the fifth negative electrode connection terminal (35) is electrically connected to the negative electrode of the battery body (50) via a seventh switch (S7), and the fifth negative electrode matching terminal (45) is electrically connected to the negative electrode of the battery body (50) via an eighth switch (S8).

12. The energy storage module according to claim 9, characterized in that: The electrical connector (30) comprises a first positive electrode connection terminal (31), a fourth positive electrode connection terminal (34) and a fifth negative electrode connection terminal (35); the electrical matching component (40) comprises a first negative electrode matching terminal (41), a fourth positive electrode matching terminal (44) and a fifth negative electrode matching terminal (45); the first positive electrode connection terminal (31), the fourth positive electrode connection terminal (34) and the fifth negative electrode connection terminal (35) of two adjacent energy storage devices (100) are electrically connected to the first negative electrode matching terminal (41), the fourth positive electrode matching terminal (44) and the fifth negative electrode matching terminal (45) in a one-to-one correspondence; The first positive electrode connection terminal (31) is electrically connected to the positive electrode via a first switch (S1), the first negative electrode matching terminal (41) is electrically connected to the negative electrode of the battery body (50) via a second switch (S2), the fourth positive electrode connection terminal (34) of the energy storage device (100) is electrically connected to the positive electrode of the battery body (50) via a fifth switch (S5), the fourth positive electrode matching terminal (44) is electrically connected to the positive electrode of the battery body (50) via a sixth switch (S6), the fifth negative electrode connection terminal (35) is electrically connected to the negative electrode of the battery body (50) via a seventh switch (S7), and the fifth negative electrode matching terminal (45) is electrically connected to the negative electrode of the battery body (50) via an eighth switch (S8).

13. The energy storage module according to any one of claims 9 to 12, characterized in that: Also includes: An output member (70), the output member (70) comprising a positive output terminal (71) and a negative output terminal (72), the output member (70) being plug-matched with an electrical connector (30) at one end of the energy storage module (1000) in the first direction, the positive output terminal (71) being electrically connected to the positive connection terminal (301), and the negative output terminal (72) being electrically connected to the negative connection terminal (302).

14. The energy storage module according to claim 13, characterized in that: The electrical connector (30) further comprises a functional connection end (38), the electrical matching part (40) comprises a functional matching end (48), the functional connection end (38) of the same energy storage device (100) is electrically connected to the functional matching end (48), the functional connection end (38) and the functional matching end (48) of two adjacent energy storage devices (100) are electrically connected, the functional connection end (38) of the energy storage module (1000) at one end of the first direction is electrically connected to the output part (70), and the functional matching end (48) of the electrical matching part (40) of the energy storage module (1000) at the other end of the first direction is electrically connected to the positive electrode matching end (401) and / or the negative electrode matching end (402).

15. An electrical equipment, characterized in that: An energy storage module (1000) comprising any one of claims 8 to 14.

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