CN218849655U - Combined battery and outdoor energy storage power supply - Google Patents

Abstract

The embodiment of the application provides a combined battery and an outdoor energy storage power supply, relates to the technical field of batteries, and can solve the problems of low battery grouping efficiency, high cost, inconvenient battery maintenance and disassembly. This assembled battery includes at least one series battery group, and the series battery group contains a plurality of battery cells, and every battery cell includes body and connection structure, and the relative both ends of body are equipped with positive terminal and negative pole end respectively, and on positive terminal and the negative pole end respectively electrically conductive connection have first connection structure and second connection structure, and the first connection structure of a battery cell in two adjacent battery cells can be dismantled with the second connection structure of another battery cell and be connected. The assembled battery is used for providing electric energy for users.

Description

Combined battery and outdoor energy storage power supply

Technical Field

The embodiment of the application relates to the technical field of batteries, in particular to a combined battery and an outdoor energy storage power supply.

Background

The outdoor energy storage power supply can be used as an outdoor multifunctional power supply, can provide a standby power supply for various digital equipment and electrical appliances, and can be widely applied to situations such as outdoor camping, outdoor operation, power failure emergency and the like.

The outdoor energy storage power source generally realizes the required voltage and capacity requirements by connecting a plurality of single batteries in series and parallel, wherein the series and parallel connection among the plurality of single batteries are usually connected by a spot welding mode of nickel sheets.

However, the series-parallel connection of a plurality of single batteries is realized by adopting a nickel sheet spot welding mode, so that when a plurality of single batteries are grouped, the die sinking cost and the material cost of the nickel sheet are increased, and the battery grouping efficiency is lower; if the single battery fails, the welding nickel sheet of the battery core needs to be disassembled to replace the single battery, but the surface and the structure of the battery can be damaged when the single battery is disassembled. Therefore, on one hand, the battery grouping efficiency is low, and the cost is high; on the other hand, the maintenance and the disassembly of the battery are not facilitated.

SUMMERY OF THE UTILITY MODEL

In view of this, this application embodiment provides a assembled battery and outdoor energy storage power, can improve battery group efficiency, reduce cost and promote the convenience of battery maintenance, dismantlement.

In a first aspect, an embodiment of the present application provides a combined battery, which includes at least one series battery pack, where the series battery pack includes a plurality of single batteries; the single battery comprises a body and a connecting structure, wherein a positive end and a negative end are respectively arranged at two opposite ends of the body, the positive end and the negative end are respectively provided with the connecting structure which is a first connecting structure and a second connecting structure, and the first connecting structure and the second connecting structure are respectively in conductive connection with the positive end and the negative end; the first connecting structure of one of the two adjacent single batteries is detachably connected with the second connecting structure of the other single battery.

Specifically, first connection structure on one of them battery cell in two adjacent battery cells and the second connection structure on another battery cell accessible threaded connection, the joint, magnetism is connected etc. realize two adjacent battery cell's detachable connection, again because first connection structure and battery cell's positive terminal conductive connection, second connection structure and battery cell's negative terminal conductive connection, consequently, can realize series connection conductive connection between two adjacent battery cells after first connection structure is connected with second connection structure, and then a plurality of battery cells end to end through respective extreme connection structural connection can form a series battery group. Here, compared with the prior art in which the series connection of two adjacent single batteries is fixedly connected by the nickel plate spot welding method between the positive terminal of one single battery and the negative terminal of the other single battery, the connection between two adjacent single batteries can be disassembled, on one hand, the die sinking cost and the material cost of the nickel plate can be saved, and the efficiency of battery grouping can be improved due to the simple connection method, on the other hand, when the single batteries are in failure, due to the detachable connection between two adjacent single batteries, the failed single batteries can be conveniently disassembled and the single batteries can be conveniently installed and connected after being replaced, so that the inconvenience of single battery maintenance and replacement caused by the nickel plate spot welding connection method and the damage to the single batteries caused by the disassembly can be avoided.

In one possible implementation manner of the present application, the first connection structure of one of the two adjacent single batteries is clamped with the second connection structure of the other single battery. Specifically, for example, the first connecting structure can be a clamping protrusion, the second connecting structure can be a clamping groove matched with the clamping protrusion, wherein the outer wall of the clamping protrusion is attached to the inner wall of the clamping groove, the connecting mode can be disassembled, and the operation is simple and feasible.

In one possible implementation manner of the present application, the first connection structure of one of the two adjacent unit cells is screwed with the second connection structure of the other unit cell. Here, the threaded connection mode can realize the detachable connection of first connection structure and second connection structure on the one hand, and on the other hand makes the connection of first connection structure and second connection structure inseparable, the reliability is strong.

In a possible implementation of this application, first connection structure includes the body, and the one end and the positive terminal of body are connected, have the external screw thread on the other end, and second connection structure includes hollow cylinder, and the one end and the negative pole end of cylinder are connected, and the internal face of the other end of cylinder has the internal thread, and first connection structure's external screw thread and second connection structure's interior screw-thread fit are in order to realize threaded connection.

In one possible implementation of the present application, there are a plurality of series battery packs. A plurality of series-connected battery packs is advantageous to further form a combined battery that meets capacity requirements.

In a possible implementation of this application, assembled battery includes the insulation board, and the insulation board is a plurality of, and the insulation board setting is in the middle of two adjacent series battery groups for support series battery group, is equipped with a plurality of connecting holes on the insulation board, and the first connection structure of the battery cell that is close to insulation board one side is passed the connecting hole after and is connected with the second connection structure of the battery cell that is close to the insulation board opposite side. Here, the presence of the insulating plate serves to support the plurality of cells on both sides of the insulating plate, and serves to insulate and isolate the cells on both sides.

In one possible implementation of the present application, the insulating plate is a printed circuit board. The printed circuit board plays a role of a battery protection board in the outdoor energy storage power supply, is a necessary element of the outdoor energy storage power supply, and can prevent explosion caused by overcharge, overcurrent, short circuit, overdischarge and the like of the battery. The printed circuit board is arranged between the two series battery packs, so that the supporting and isolating functions of the insulating board can be realized, and the battery can be protected.

In a possible implementation manner of the present application, the insulating plate is provided with a plurality of heat dissipation holes for heat dissipation of the assembled battery.

In a possible implementation of this application, this assembled battery includes the piece that converges, and the piece that converges is two, establishes respectively in the outermost both sides on the group battery extending direction that establishes ties, all is equipped with the mounting hole corresponding with first connection structure and second connection structure on two pieces that converge, and first connection structure or second connection structure pass the mounting hole on the battery cell after can dismantle through fastener and the piece that converges and be connected. The arrangement of the confluence sheet is convenient for conducting connection of a plurality of single batteries so as to obtain higher working current and play a role in supporting and fixing the batteries. In addition, the monomer battery adopts the mode of dismantling the connection with the piece that converges, compares in monomer battery and the welded connected mode of piece that converges, when the monomer battery that is connected with the piece that converges appears damaging, is convenient for dismantle the maintenance to the monomer battery, avoids the destruction problem to battery surface structure that brings when welded connected mode is dismantled.

In a second aspect, an embodiment of the present application provides an outdoor energy storage power supply, which includes a housing, the assembled battery of any one of the first aspects, and a control assembly. The combined battery is positioned in the shell so as to fixedly package the combined battery in the shell; the control assembly is arranged in the shell and used for intelligent management of the outdoor energy storage power supply.

The outdoor energy storage power that this application embodiment provided, owing to have the assembled battery of any one in the first aspect, consequently have the same technological effect, because connect for dismantling between per two adjacent battery cells in the assembled battery promptly, can improve battery efficiency in groups to but the battery of trouble is down convenient to detach and to its replacement back erection joint, can avoid the not convenience of the battery cell maintenance replacement that nickel piece spot welding connected mode brought and dismantle the destruction to the battery cell that causes. The combined battery after being grouped can realize the intelligent management of the outdoor energy storage power supply by matching with the control assembly.

Drawings

Fig. 1 is a schematic structural diagram of a single battery provided with a first connection structure according to an embodiment of the present disclosure;

fig. 2 is a schematic structural diagram of a second connection structure provided on a single battery according to an embodiment of the present disclosure;

fig. 3 is a schematic structural view illustrating a connection structure of a single battery and a bus bar according to an embodiment of the present disclosure;

fig. 4 is a schematic structural diagram illustrating a connection structure of a single battery cell and a printed circuit board according to an embodiment of the present disclosure;

fig. 5 is a schematic structural diagram of a plurality of unit batteries grouped according to an embodiment of the present application.

Reference numerals are as follows:

1-a single cell; 11-positive terminal; 12-negative terminal; 13-a first connecting structure; 14-a second connecting structure; 2-an insulating plate; 21-heat dissipation holes; 22-connecting hole; 3-confluence piece; 31-a through hole; 4-screws; 5-a nut; 6-voltage acquisition terminal; 7-locking and attaching the nut.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, specific technical solutions of the present application will be described in further detail below with reference to the accompanying drawings in the embodiments of the present application. The following examples are intended to illustrate the present application but are not intended to limit the scope of the present application.

In the embodiments of the present application, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present application, "a plurality" means two or more unless otherwise specified.

In addition, in the embodiments of the present application, directional terms such as "upper", "lower", "left", and "right" are defined with respect to the schematically-placed orientation of components in the drawings, and it is to be understood that these directional terms are relative concepts, which are used for descriptive and clarifying purposes, and may be changed accordingly according to changes in the orientation in which the components are placed in the drawings.

In the embodiments of the present application, unless otherwise explicitly specified or limited, the term "connected" is to be understood broadly, for example, "connected" may be a fixed connection, a detachable connection, or an integral body; may be directly connected or indirectly connected through an intermediate.

In the embodiments of the present application, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a component of' 8230; \8230;" does not exclude the presence of another like element in a process, method, article, or apparatus that comprises the element.

In the embodiments of the present application, words such as "exemplary" or "for example" are used to mean serving as examples, illustrations or descriptions. Any embodiment or design described herein as "exemplary" or "such as" is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.

The outdoor energy storage power supply is a portable power supply system which is composed of a shell, a battery pack, a circuit board and the like, comprises a direct current output port and an alternating current output port and can provide stable direct current output and alternating current output. The portable multi-jack socket has been widely used due to the characteristics of small volume, portability, high power (such as 600W of rated output power, 1200W of peak output power and the like), multi-jack, multi-function and the like. Wherein, the fuselage shell of outdoor energy storage power adopts the high rigidity and has the material that fire prevention group fires the characteristic usually, and the appearance is roughly the cuboid structure, and its top is equipped with the handle portion of conveniently carrying and taking, and the fuselage both sides are equipped with the louvre to a plurality of smart fans of collocation are in order adding the piece heat dissipation. The battery pack is used as a core component of the outdoor energy storage power supply, a lithium battery pack with high energy density is usually arranged in the shell, and 220V alternating current output is carried out through an inversion conversion module of the outdoor energy storage power supply, so that the battery pack becomes a portable energy storage power supply capable of storing electric energy. In addition, the outdoor power supply is provided with interfaces such as a USB interface and a Type-C (USB Type-C is also called as USB-C, namely a hardware interface of a universal serial bus), and can directly supply power to equipment such as a notebook computer, a digital camera, an unmanned aerial vehicle, a projector and a mobile phone. Therefore, the system is convenient for users to use in different scenes such as self-driving travel, outdoor operation, emergency rescue, outdoor live broadcast and the like.

The embodiment provides an outdoor energy storage power supply in this application, can be applied to situations such as outdoor camping, outdoor operations, emergency rescue. The outdoor energy storage power supply comprises a shell, a combined battery and a control assembly. The combined battery is positioned in the shell so as to fixedly package the combined battery in the shell; the control assembly is arranged in the shell and used for intelligent management of the outdoor energy storage power supply.

Wherein, the assembled battery is as the core part of outdoor energy storage power, is formed by a plurality of battery cell series-parallel connection combinations, and battery cell's shape can be cylindrical, square etc. comparatively speaking, because cylindrical battery's manufacture standard and technology are comparatively unified, and when a plurality of cylindrical battery were arranged, all there was the gap between the battery, and these gaps all have the radiating effect to the group battery, consequently, preferably, assembled battery adopts a plurality of cylindrical battery cell combinations to form. In the application, if not stated otherwise, all the single batteries in the assembled battery are cylindrical batteries. For example, a vehicle-scale lithium iron phosphate battery may be used, which has better battery life and safety compared to a conventional lithium ion battery. When a plurality of batteries are combined to form a combined battery, a plurality of unit batteries are assembled in series or in parallel to form a large-capacity, high-voltage battery pack. This wherein, the series-parallel connection between battery and the battery is generally connected through the spot welding mode of nickel piece, from this, when can making the battery become to constitute, the die sinking expense that needs to increase the nickel piece and the cost expense of material, and spot welding connected mode causes and connects work efficiency low, and follow-up assembled battery is in the use, when certain battery cell 1 broke down, the welding nickel piece that needs to disassemble the battery replaces electric core, and dismouting battery can damage battery surface and its structure, influences assembled battery's use.

To solve the above problem, referring to fig. 1, 2 and 3, an embodiment of the present application provides a combined battery including at least one series battery pack including a plurality of unit batteries 1; the single battery 1 comprises a body and a connection structure, wherein a positive end 11 and a negative end 12 are respectively arranged at two opposite ends of the body, the positive end 11 and the negative end 12 are respectively provided with the connection structure which is a first connection structure 13 and a second connection structure 14, and the first connection structure 13 and the second connection structure 14 are respectively in conductive connection with the positive end 11 and the negative end 12; the first connection structure 13 of one unit battery 1 of the two adjacent unit batteries 1 is detachably connected with the second connection structure 14 of the other unit battery 1.

Specifically, the first connection structure 13 on one of the two adjacent single batteries 1 and the second connection structure 14 on the other single battery 1 can be connected detachably through threads, clamping, magnetic connection, and the like, and the first connection structure 13 is electrically connected with the positive terminal 11 of the single battery 1, and the second connection structure 14 is electrically connected with the negative terminal 12 of the single battery 1, so that the first connection structure 13 and the second connection structure 14 can be connected to form a series connection between the two adjacent single batteries 1, and the multiple single batteries 1 can be connected end to end through respective extreme connection structures to form a series battery pack. Here, compared with the prior art in which the two adjacent single batteries 1 are fixedly connected in series by the nickel plate spot welding between the positive terminal 11 of one single battery 1 of the two adjacent single batteries 1 and the negative terminal 12 of the other single battery 1, the method of detachably connecting the two adjacent single batteries 1 can save the die sinking cost and the material cost of the nickel plate, and can improve the battery grouping efficiency due to the simple connection method, and on the other hand, when the single battery 1 fails, due to the detachable connection between the two adjacent single batteries 1, the failed single battery 1 can be conveniently detached and replaced and then installed and connected, so that the inconvenience of maintenance and replacement of the single battery 1 and the damage to the single battery 1 caused by detachment due to the nickel plate spot welding connection method can be avoided.

In some embodiments, referring to fig. 1, 2 and 3, the first connection structure 13 of one unit battery 1 of two adjacent unit batteries 1 is snapped with the second connection structure 14 of the other unit battery 1. Specifically, for example, the first connecting structure 13 may be a clamping protrusion, the second connecting structure 14 may be a clamping groove matched with the clamping protrusion, and an outer wall of the clamping protrusion is attached to an inner wall of the clamping groove, where specific structural forms of the clamping protrusion and the clamping groove are not limited, such as the shape of the clamping protrusion and the clamping groove is rectangular, zigzag, conical, etc., so that the detachable connection manner is simple and easy.

In some embodiments, referring to fig. 1, 2, and 3, the first connection structure 13 of one unit battery 1 of the adjacent two unit batteries 1 is screw-connected with the second connection structure 14 of the other unit battery 1. Here, the threaded connection can achieve detachable connection of the first connection structure 13 and the second connection structure 14 on the one hand, and make the first connection structure 13 and the second connection structure 14 tightly connected and highly reliable on the other hand.

Further, referring to fig. 1, 2 and 3, the first connection structure 13 includes a body, one end of the body is connected to the positive terminal 11, the other end of the body has an external thread, and the extending direction of the body is consistent with the extending direction of the battery cell 1, the second connection structure 14 includes a hollow cylinder, one end of the cylinder is connected to the negative terminal 12, the inner wall surface of the other end of the cylinder has an internal thread, the extending direction of the cylinder is consistent with the extending direction of the battery cell 1, and the external thread of the first connection structure 13 is connected to the internal thread of the second connection structure 14 in a matching manner. In this way, the positive terminal 11 of one of the two adjacent single batteries 1 and the negative terminal 12 of the other single battery 1 can be electrically connected through respective connection structures, and every two adjacent single batteries 1 can be connected end to end along the extension direction of the single batteries 1 to form a series battery pack.

It should be noted that the second connection structure 14 may also include a body, one end of the body is connected to the positive terminal 11, the other end of the body has an external thread, the first connection structure 13 includes a hollow cylinder, and one end of the cylinder is connected to the negative terminal 12. In addition, the material of the body of the first connecting structure 13 and the material of the cylinder of the second connecting structure 14 are not limited, and the material may be copper, iron, copper-nickel alloy, and the like, and preferably, copper is used, which has good comprehensive performance, such as high conductivity, high temperature resistance, low temperature resistance, and corrosion resistance.

In some embodiments, referring to fig. 3, the nut 5 is adapted to the external thread of the first connection structure 13 to enable a threaded connection of the nut 5 with the first connection structure 13; the screw 4 is adapted to the internal thread of the second connecting structure 14, and the screw 4 can be screwed into the internal thread of the second connecting structure 14 to achieve a threaded connection of the screw 4 to the second connecting structure 14. Wherein, the nut 5 and the screw 4 can respectively adopt a copper M4 nut 5 and a copper M4 screw 4.

In some embodiments, referring to fig. 5, the series battery pack is plural. A plurality of series-connected battery packs is advantageous to further form a combined battery that meets capacity requirements.

Referring to fig. 4 and 5, the assembled battery includes a plurality of insulating plates 2, the insulating plates 2 are disposed between two adjacent series battery packs for supporting the series battery packs, a plurality of connection holes 22 are formed in the insulating plates 2, and the first connection structure 13 of the unit battery 1 adjacent to one side of the insulating plates 2 is connected to the second connection structure 14 of the unit battery 1 adjacent to the other side of the insulating plates 2 after passing through the connection holes 22. Here, the presence of the insulating plate 2 serves to support the plurality of unit cells 1 on both sides of the insulating plate 2, and serves to insulate and isolate the unit cells 1 on both sides.

It should be noted that the shape of the insulating plate 2 is not limited, and preferably, the projected area of the assembled battery perpendicular to the plane of the insulating plate 2 is not larger than the area of the plane of the insulating plate 2, so that the insulating plate 2 can carry the series battery packs on both sides of the insulating plate 2 along the extending direction of the batteries, and the plane of the insulating plate 2 is perpendicular to the extending direction of the batteries of the series battery packs. The material of the insulating plate 2 is not limited, and may be an epoxy resin plate, a polyethylene plate, or the like, which has both high flame retardancy and high strength.

In some embodiments, referring to fig. 4 and 5, the insulating plate 2 is a printed circuit board. Here, the Printed Circuit Boards (PCB for short, collectively referred to as a Printed Circuit board in chinese) play a role of a battery protection board in the outdoor energy storage power supply, are necessary elements of the outdoor energy storage power supply, and can prevent explosion caused by overcharge, overcurrent, short Circuit, overdischarge, and the like of the battery. The printed circuit board is arranged between the two series battery packs, so that the supporting and isolating functions of the insulating plate 2 can be realized, and the battery protection function can be also played. The printed circuit boards are arranged between every two adjacent series-connected battery packs. In addition, the number of the printed circuit boards arranged between two adjacent series-connected battery packs may also be multiple, for example, two printed circuit boards may be arranged between two adjacent series-connected battery packs, and the two printed circuit boards are located in the same plane.

Further, referring to fig. 4 and 5, the printed circuit board is provided with a plurality of heat dissipation holes 21 for dissipating heat of the assembled battery. Specifically, the printed circuit board may be provided with a plurality of heat dissipation holes 21, wherein the size and the number of the heat dissipation holes 21 are not limited, or the size of each heat dissipation hole 21 is equal, or the sizes of the plurality of heat dissipation holes 21 are different. In addition, the shape of the heat dissipation hole 21 is not limited, and may be a square hole, a circular hole, an elliptical hole, or the like. Therefore, heat generated by the operation of the printed circuit board can be discharged through the heat dissipation holes 21, so that the service life of the printed circuit board is prolonged, and meanwhile, heat generated by the assembled battery can also be discharged through the heat dissipation holes 21, so that the service life of the assembled battery is prolonged.

In some embodiments, referring to fig. 3, 4 and 5, the assembled battery includes two bus bars 3, the two bus bars 3 are respectively disposed at two sides of the outermost series battery pack in the extending direction, mounting holes corresponding to the first connecting structure 13 and the second connecting structure 14 are disposed on each of the two bus bars 3, and the first connecting structure 13 or the second connecting structure 14 on the single battery 1 is detachably connected to the bus bar 3 through a fastener after passing through the mounting hole.

Specifically, the first connecting structure 13 on the positive electrode end 11 of the outermost series battery pack passes through the mounting hole corresponding to the first connecting structure 13 on the bus bar 3 and is then screwed through the nut 5 matched with the external thread of the first connecting structure 13; the second connecting structure 14 on the negative end 12 of the outermost series battery pack passes through the screw 4 matched with the internal thread of the hollow cylinder of the second connecting structure 14 on the bus bar 3 in a threaded manner. Here, the bus bar 3 is provided to facilitate connection of the plurality of unit batteries 1 to obtain a higher operating current and to support and fix the batteries. In addition, one end of one of the two current collecting sheets 3 is provided with a bent part, the bent part is provided with a mounting hole and a voltage acquisition terminal 6, and the mounting hole is used for fixing the current collecting sheet 3 with the energy storage power supply shell through a locking nut 7; one end of the other bus bar 3 and one end of the printed circuit board are both provided with a voltage acquisition terminal 6, and the voltage acquisition terminal 6 is used for acquiring the voltage of the battery. This wherein, a plurality of series battery group and the mode of converging 3 adoption of the connection of can dismantling, compare in the two poles of the earth end of series battery group and converge 3 welded connected modes of piece, when the monomer battery 1 of being connected with the piece 3 that converges appears damaging, be convenient for dismantle the maintenance to monomer battery 1, the destruction problem to battery surface structure that brings when avoiding the welding mode of even dismantlement.

It should be noted that, the material of the bus bar 3 is not particularly limited, such as the bus bar may be made of metal, such as copper plate, aluminum plate, etc., preferably, a copper plate is used, which has good comprehensive performance, for example, the copper plate has a high conductivity, good extensibility, high temperature resistance, low temperature resistance, corrosion resistance, and can prolong the service life of the energy storage power supply. The manifold sheet 3 also has a plurality of through holes 31 corresponding to the cell gaps, which can be used for heat dissipation of the assembled battery.

The above-mentioned serial numbers of the embodiments of the present application are merely for description and do not represent the merits of the embodiments. The above description is only a preferred embodiment of the present application, and not intended to limit the scope of the present application, and all the equivalent structures or equivalent processes that can be directly or indirectly applied to other related technical fields by using the contents of the specification and the drawings of the present application are also included in the scope of the present application.

Claims (10)

1. A unitized battery, comprising:

at least one series battery pack comprising a plurality of cells;

the single battery comprises a body and a connecting structure, wherein a positive end and a negative end are respectively arranged at two opposite ends of the body, the connecting structures are respectively arranged on the positive end and the negative end and are respectively a first connecting structure and a second connecting structure, and the first connecting structure and the second connecting structure are respectively in conductive connection with the positive end and the negative end;

the first connecting structure of one of the adjacent two single batteries is detachably connected with the second connecting structure of the other single battery.

2. The assembled battery of claim 1, wherein the first connecting structure of one of the two adjacent single batteries is clamped with the second connecting structure of the other single battery.

3. The assembled battery according to claim 1, wherein the first connection structure of one of the unit cells of adjacent two of the unit cells is screw-connected with the second connection structure of the other of the unit cells.

4. The assembled battery according to claim 3, wherein the first connecting structure comprises a body, one end of the body is connected with the positive terminal, the other end of the body is provided with an external thread, the second connecting structure comprises a hollow cylinder, one end of the cylinder is connected with the negative terminal, the inner wall surface of the other end of the cylinder is provided with an internal thread, and the external thread of the first connecting structure is matched and connected with the internal thread of the second connecting structure.

5. The assembled battery according to any one of claims 1 to 4, wherein the series battery pack is plural.

6. The assembled battery according to claim 5, comprising a plurality of insulating plates, wherein the insulating plates are disposed between two adjacent series battery packs for supporting the series battery packs, and a plurality of connection holes are formed in the insulating plates, and the first connection structure of the single battery near one side of the insulating plates is connected to the second connection structure of the single battery near the other side of the insulating plates after passing through the connection holes.

7. The assembled battery according to claim 6, wherein the insulating plate is a printed circuit board.

8. The assembled battery of claim 6, wherein the insulating plate is provided with a plurality of heat dissipation holes for dissipating heat of the assembled battery.

9. The assembled battery according to claim 5, wherein the assembled battery comprises two bus bars, the two bus bars are respectively arranged on two sides of the outermost layer in the extending direction of the series battery pack, each of the two bus bars is provided with a mounting hole corresponding to the first connecting structure and the second connecting structure, and the first connecting structure or the second connecting structure on the single battery is detachably connected with the bus bar through a fastener after passing through the mounting hole.

10. An outdoor energy storage power supply, comprising:

a housing;

the assembled battery according to any one of claims 1 to 9, which is fixed in the case;

and the control assembly is arranged in the shell and used for intelligent management of the outdoor energy storage power supply.

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