Battery connection system of energy storage battery, energy storage battery device and electrical equipment

Abstract

The present application relates to a battery connection system, an energy storage battery device, and electrical equipment for an energy storage battery. The battery connection system for the energy storage battery includes a conductive aluminum busbar; the conductive aluminum busbar includes a first connector and a second connector; the first connector and the second connector have first different specifications, and the first different specifications are configured to prevent assembly errors in the battery connection system of the energy storage battery; the first connector portion of the first connector and the second connector portion of the second connector have different lengths. The first connector and the second connector form an actual difference, and this difference can be easily defined through assembly, which is also conducive to coordinating the realization of automated production and testing processes; and at least in terms of the first connector portion and the second connector portion, the first connector and the second connector have first different specifications to form an asymmetric assembly error-proofing structure, thereby having the advantage of a simple structure, which is conducive to improving assembly efficiency and reducing assembly defects, and is thus easy to promote and use in production.

Description

Technical Field

[0001] The present application relates to the field of batteries, and in particular to a battery connection system, an energy storage battery device, and electrical equipment for energy storage batteries. Background Art

[0002] The battery pack's Cell Contact System (CCS), also known as the integrated busbar, is a key component in the battery system. Specifically, the CCS, or CCS assembly, is an integrated component used to achieve electrical connections between cells within the battery pack, transmit signals, and provide mechanical support and protection for the battery pack. In areas such as grid energy storage and distributed energy storage, the CCS in the battery pack effectively manages and connects a large number of cells, ensuring efficient operation and stable power supply of the energy storage system, thereby improving energy utilization efficiency and grid stability.

[0003] When connecting multiple rows of cells, multiple CCS components are also provided. During the assembly process, multiple CCS components are easily installed incorrectly, thus affecting assembly efficiency. Summary of the Invention

[0004] Based on this, it is necessary to provide a battery connection system for an energy storage battery, an energy storage battery device and electrical equipment.

[0005] One embodiment of the present application is a battery connection system for an energy storage battery, comprising a conductive aluminum busbar;

[0006] The conductive aluminum busbar includes a first electrical connection piece and a second electrical connection piece;

[0007] The first power connector and the second power connector have first different specifications, and the first different specifications are configured to prevent assembly errors in the battery connection system of the energy storage battery;

[0008] The first power connection portion of the first power connection member and the second power connection portion of the second power connection member have different lengths.

[0009] The battery connection system of the energy storage battery is designed with first and second electrical connectors of different lengths, thereby creating a practical difference between the first and second electrical connectors. This difference can be easily defined during assembly, facilitating the implementation of automated production and testing processes. Furthermore, at least with respect to the first and second electrical connectors, the first and second electrical connectors have first different specifications to form an asymmetric assembly foolproof structure. This structure has the advantage of being simple, thereby facilitating improved assembly efficiency and reduced assembly defects, thereby facilitating widespread use in production.

[0010] In some embodiments, in the extension direction of the conductive aluminum bar or the width direction perpendicular to the extension direction, the length difference between the first power connection portion and the second power connection portion is greater than a preset value, and the preset value is the sum of the length tolerance of the conductive aluminum bar and twice the fitting clearance.

[0011] In some embodiments, the first electrical connection member is configured as the positive electrode of the conductive aluminum bar, the second electrical connection member is configured as the negative electrode of the conductive aluminum bar, and the length of the first electrical connection portion is greater than the length of the second electrical connection portion.

[0012] In some embodiments, the first power connector and the second power connector have different shapes; or,

[0013] The first power connection portion and the second power connection portion have different shapes.

[0014] In some embodiments, the first power connector and the second power connector have different positioning structures, wherein the positioning structures include a protrusion and a groove.

[0015] In some embodiments, the positioning structure passes through the first power connector and the second power connector; or, the positioning structure is located at an edge of the first power connector and an edge of the second power connector.

[0016] In some embodiments, the first power connection portion and the second power connection portion have different positioning structures;

[0017] The positioning structure passes through the first power connection portion and the second power connection portion; or the positioning structure is located at an edge of the first power connection portion and an edge of the second power connection portion.

[0018] In some embodiments, the battery connection system of the energy storage battery further includes a circuit board;

[0019] Furthermore, the circuit board is provided with at least two through holes, and the at least two through holes are configured to be identified by a charge coupled device detection device to serve as a foolproofing measure for assembly of the circuit board.

[0020] In some embodiments, at least two of the through holes have different shapes in different orders along the extending direction of the conductive aluminum row.

[0021] In some embodiments, the through hole includes a first through hole and a second through hole, and the first through hole and the second through hole have different numbers, different position distributions or second different specifications to match the first power connector and the second power connector to serve as a fool-proof assembly of the battery connection system of the energy storage battery.

[0022] In some embodiments, the through hole is configured to expose an explosion-proof valve of a battery cell to which the conductive aluminum busbar is connected.

[0023] In some embodiments, the through hole includes a first through hole and a second through hole, and the first through hole and the second through hole have different areas to expose different numbers of the explosion-proof valves.

[0024] In some embodiments, the through hole includes a first through hole and a second through hole, and the first through hole is configured to expose the entire explosion-proof valve of the battery cell to which the conductive aluminum busbar is connected.

[0025] In some embodiments, the battery connection system of the energy storage battery further includes an isolation plate, and the isolation plate is disposed on the conductive aluminum bus.

[0026] In some embodiments, the isolation plate has an isolation shape corresponding to the first power connector and the second power connector, and the isolation shape is configured to prevent foolish assembly of the battery connection system of the energy storage battery.

[0027] In some embodiments, the battery connection system of the energy storage battery further includes a circuit board, wherein the circuit board is provided with at least two through holes, and at least two of the through holes are configured to be recognized by a charge coupled device detection device to serve as a foolproof assembly of the circuit board;

[0028] At least one of the through holes is a first through hole, and the first through hole is configured to expose at least two explosion-proof valves of the battery cell to which the conductive aluminum busbar is connected;

[0029] The isolation plate is provided with a protrusion, the protrusion is embedded in the first through hole, and the protrusion is configured to isolate the adjacent explosion-proof valves.

[0030] In some embodiments, the circuit board is disposed on the isolation plate and is located between the isolation plate and the conductive aluminum bar.

[0031] In some embodiments, an energy storage battery device includes a battery cell, an end plate, and a battery connection system of the energy storage battery according to any embodiment;

[0032] The conductive aluminum busbars of the battery connection system of the energy storage battery are connected to the electrodes of the battery cell;

[0033] The end plate is provided with a first power connection base and a second power connection base;

[0034] The first electrical connection piece of the conductive aluminum bar is installed on the first electrical connection base, and the second electrical connection piece of the conductive aluminum bar is installed on the second electrical connection base;

[0035] The first power connection base and the second power connection base have different assembly lengths to adapt to the first power connection portion of the first power connection piece and the second power connection portion of the second power connection piece.

[0036] The energy storage battery device is designed with first and second power connection portions of different lengths, and with first and second power connection bases having different assembly lengths. This allows the first and second power connection members to form sufficient practical differences when assembled with the first and second power connection bases, respectively. This difference can be easily defined through assembly, facilitating the implementation of automated production and testing processes. Furthermore, at least with respect to the first and second power connection portions, the first and second power connection members have first different specifications to form an asymmetric assembly foolproof structure, allowing them to be correspondingly adapted and installed on the first and second power connection bases. Therefore, the device has the advantage of a simple structure, thereby improving assembly efficiency and reducing assembly defects, thereby facilitating widespread use in production.

[0037] In some embodiments, the end plate is further provided with an insert, and the first power connection base and the second power connection base respectively achieve different assembly lengths through different inserts;

[0038] The first power connection portion is arranged on the first power connection base through one of the inserts, and the second power connection portion is arranged on the second power connection base through another of the inserts.

[0039] In some embodiments, an electrical device includes the energy storage battery device described in any embodiment. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the conventional technology, the following briefly introduces the drawings required for use in the embodiments or the conventional technology descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0041] Figure 1 This is a structural diagram of an embodiment of the energy storage battery device described in this application.

[0042] Figure 2 for Figure 1 A partial structural diagram of the embodiment shown.

[0043] Figure 3 for Figure 1 Schematic diagram of the structural decomposition of the embodiment shown.

[0044] Figure 4 for Figure 3A schematic structural diagram of the embodiment in which the first power connection member is installed on the first power connection base in another direction is shown.

[0045] Figure 5 for Figure 3 A schematic structural diagram of the second power connection member in another direction of the embodiment shown is installed on the second power connection base.

[0046] Figure 6 for Figure 1 Another schematic diagram of the embodiment shown.

[0047] Figure 7 for Figure 6 Schematic diagram of incorrect assembly of the illustrated embodiment.

[0048] Figure 8 for Figure 3 Another schematic diagram of the embodiment shown.

[0049] Figure 9 for Figure 8 An enlarged schematic diagram of point A of the illustrated embodiment.

[0050] Figure 10 This is a structural schematic diagram of another embodiment of the energy storage battery device described in this application.

[0051] Figure 11 for Figure 10 Schematic diagram of the structural decomposition of the embodiment shown.

[0052] Figure 12 for Figure 11 An enlarged schematic diagram of point B of the illustrated embodiment.

[0053] Figure 13 for Figure 10 Schematic diagram of the assembly of part of the structure of the embodiment shown.

[0054] : Figure numerals: 100, energy storage battery device; 200, battery connection system of energy storage battery; 210, conductive aluminum bus; 211, first power connection member; 212, second power connection member; 213, intermediate connection member; 214, positioning structure; 221, first power connection part; 222, second power connection part; 230, isolation plate; 231, protrusion; 240, wiring harness; 250, circuit board; 251, first through hole; 252, second through hole; 260, extension direction; 270, width direction; 280, fixing member; 300, battery cell; 310, explosion-proof valve; 320, electrode; 400, end plate; 410, first end plate; 411, first power connection base; 420, second end plate; 421, second power connection base; 430, insert; 500, fastening belt; 600, detection direction; L1, first length; L2, second length. DETAILED DESCRIPTION

[0055] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0056] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it may be directly on the other component or there may be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be a central component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of this application are for illustrative purposes only and do not represent the only implementation method.

[0057] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0058] In this application, unless otherwise expressly specified or limited, a first feature being “above” or “below” a second feature may mean that the first feature is directly in contact with the second feature, or that the first feature and the second feature are indirectly in contact through an intermediate medium. Furthermore, a first feature being “above,” “above,” or “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below,” “below,” or “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0059] Unless otherwise defined, all technical and scientific terms used in the specification of this application have the same meaning as commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and or" used in the specification of this application includes any and all combinations of one or more of the relevant listed items.

[0060] The present application discloses a battery connection system for an energy storage battery, an energy storage battery device, and electrical equipment, which include some or all of the technical features of the following embodiments. In one embodiment of the present application, a battery connection system for an energy storage battery includes a conductive aluminum busbar; the conductive aluminum busbar includes a first connector and a second connector; the first connector and the second connector have first different specifications, and the first different specifications are configured to prevent assembly errors in the battery connection system of the energy storage battery; wherein the first connector portion of the first connector and the second connector portion have different lengths. The battery connection system for the energy storage battery, by designing the first connector portion and the second connector portion with different lengths, creates a practical difference between the first connector portion and the second connector portion. This difference is easily defined during assembly and facilitates automated production and testing processes. Furthermore, at least with respect to the first connector portion and the second connector portion, the first connector portion and the second connector portion have the first different specifications to form an asymmetric assembly error-proofing structure, thereby having the advantage of a simple structure, thereby improving assembly efficiency and reducing assembly errors, thereby facilitating widespread use in production. The following combination Figures 1 to 13 , and provides detailed descriptions of the battery connection system, energy storage battery device and electrical equipment of the energy storage battery.

[0061] An energy storage battery is a device that can convert electrical energy into chemical energy for storage and then convert the chemical energy into electrical energy for release when needed. In some embodiments, an energy storage battery device 100 is as follows: Figure 1 As shown, it includes a battery cell 300, an end plate 400 and a battery connection system 200 for an energy storage battery, wherein the battery connection system 200 for an energy storage battery is the battery connection system 200 for an energy storage battery of any embodiment herein. Figure 2 and Figure 3 , the conductive aluminum bus 210 of the battery connection system 200 of the energy storage battery is connected to the electrode 320 of the battery cell 300; Figure 4 and Figure 5The end plate 400 is provided with a first power connection base 411 and a second power connection base 421. The first power connection member 211 of the conductive aluminum bar 210 is mounted on the first power connection base 411, and the second power connection member 212 of the conductive aluminum bar 210 is mounted on the second power connection base 421. The first power connection base 411 and the second power connection base 421 have different assembly lengths to adapt to the first power connection portion 221 of the first power connection member 211 and the second power connection portion 222 of the second power connection member 212. This design, by designing the first power connection portion 221 and the second power connection portion 222 of different lengths, in conjunction with the first power connection base 411 and the second power connection base 421 having different assembly lengths, creates a sufficient practical difference between the first power connection member 211 and the second power connection member 212 when assembled with the first power connection base 411 and the second power connection base 421. This difference can be easily controlled during assembly, which is also conducive to cooperating with automated production and testing processes. In addition, at least with respect to the first power connection portion 221 and the second power connection portion 222, the first power connection member 211 and the second power connection member 212 have first different specifications to form an asymmetric assembly foolproof structure, so that they can be correspondingly adapted and installed on the first power connection base 411 and the second power connection base 421. Therefore, it has the advantage of a simple structure, which is conducive to improving assembly efficiency and reducing assembly defects, and is therefore easy to promote and use in production.

[0062] As an example, combined with Figure 11 The end plate 400 includes a first end plate 410 and a second end plate 420. The first end plate 410 is provided with a first power connection base 411, and the second end plate 420 is provided with a second power connection base 421. As an example, the conductive aluminum bar 210 also includes a plurality of intermediate connectors 213, each of which connects the first power connection 211 and the second power connection 212. As an example, the first power connection 211, each of the intermediate connectors 213, and the second power connection 212 are sequentially connected in series.

[0063] As an example, Figures 1 to 3 In the embodiment shown, there are multiple cells 300 and the multiple cells 300 are arranged regularly. The regularly arranged cells 300 can also be called a cell module. As an example, Figures 1 to 3 In the illustrated embodiment, the energy storage battery device 100 further includes a fastening strap 500, which is used to securely bind the battery cells 300 and the end plates 400. For example, the fastening strap 500 is a steel strap. This design effectively resists the impact and vibration that the battery module may encounter during transportation, installation, and use, preventing damage to the battery cells 300 from external forces such as mechanical shock and collision. This protects the battery cells 300 from external mechanical stress and extends the service life of the energy storage battery device 100.

[0064] In some embodiments, such as Figure 13As shown, the end plate 400 is further provided with an insert 430. The first power connection base 411 and the second power connection base 421 each utilize different inserts 430 to achieve different assembly lengths. The first power connection portion 221 is mounted on the first power connection base 411 via one insert 430, while the second power connection portion 222 is mounted on the second power connection base 421 via another insert 430. This design, by using inserts 430 to achieve different assembly lengths for the first power connection base 411 and the second power connection base 421, allows for more precise control of the installation position of the power connection components, reduces assembly errors, and thus improves assembly efficiency. Furthermore, the addition of inserts 430 allows this embodiment to accommodate power connection components or their respective connection portions of varying specifications by replacing or adjusting the inserts without changing the main structure of the end plate 400, thereby enhancing the flexibility and scalability of the energy storage battery device 100. Furthermore, the use of inserts 430 simplifies the manufacturing process of the end plate 400, thereby reducing the use of complex molds and, consequently, production costs. On the other hand, the asymmetric assembly fool-proof structure design is realized by cooperating with different inserts 430, which can effectively prevent the incorrect installation of two power connection parts or the incorrect installation of two power connection parts, reduce failures caused by assembly errors, improve assembly reliability, and thus improve product reliability.

[0065] In each embodiment, the specification refers to the form factor, which includes shape and size, also known as geometric characteristics. For example, along the extension direction 260 of the conductive aluminum bar 210, the first power connection portion 221 and the second power connection portion 222 have different lengths; alternatively, along the width direction 270 perpendicular to the extension direction 260, the first power connection portion 221 and the second power connection portion 222 have different lengths. The first power connection base 411 and the second power connection base 421 of the end plate 400 have first different specifications corresponding to the first power connection member 211 and the second power connection member 212.

[0066] In some embodiments, such as Figure 3 As shown, the battery connection system 200 of the energy storage battery includes a conductive aluminum bus 210; Figure 4 and Figure 5The conductive aluminum busbar 210 includes a first connector 211 and a second connector 212. The first connector 211 and the second connector 212 have first different specifications, which are configured to prevent misassembly of the battery connection system 200 for the energy storage battery. Specifically, the first connector portion 221 of the first connector 211 and the second connector portion 222 of the second connector 212 have different lengths. This design, by designing the first connector portion 221 and the second connector portion 222 with different lengths, creates a practical difference between the first connector 211 and the second connector 212. This difference is easily defined during assembly and facilitates automated production and testing processes. Furthermore, the first connector portion 221 and the second connector portion 222 have first different specifications, at least with respect to the first connector portion 221 and the second connector portion 222, forming an asymmetric misassembly structure. This structure offers the advantage of a simple structure, thereby improving assembly efficiency and reducing assembly defects, making it easier to promote and use in production.

[0067] Thus, when installing the battery connection system 200 of the energy storage battery, the different width structures of the conductive aluminum bars 210 can achieve the purpose of foolproofing and improve the assembly efficiency and reliability of the battery connection system 200 of the energy storage battery. In some embodiments, such as Figure 2 As shown, in the extension direction 260 of the conductive aluminum row 210 or in the width direction 270 perpendicular to the extension direction 260, the conductive aluminum row 210 is connected to the conductive aluminum row 210. Figure 4 and Figure 5 The difference in length between the first electrical connection portion 221 and the second electrical connection portion 222 is greater than a preset value, which is the sum of the length tolerance of the conductive aluminum busbar 210 and twice the fit clearance. Specifically, the battery connection system 200 for an energy storage battery includes a conductive aluminum busbar 210; the conductive aluminum busbar 210 includes a first electrical connection member 211 and a second electrical connection member 212; the first electrical connection member 211 and the second electrical connection member 212 have first different specifications, which are configured to prevent assembly errors in the battery connection system 200 for the energy storage battery. The first electrical connection portion 221 of the first electrical connection member 211 and the second electrical connection portion 222 of the second electrical connection member 212 have different lengths. Furthermore, in an extension direction 260 of the conductive aluminum busbar 210 or a width direction 270 perpendicular to the extension direction 260, the difference in length between the first electrical connection portion 221 and the second electrical connection portion 222 is greater than a preset value, which is the sum of the length tolerance of the conductive aluminum busbar 210 and twice the fit clearance. The remaining embodiments are similar and will not be described in detail.

[0068] As an example, Figure 4 and Figure 5As shown, in the width direction 270, the first power connection portion 221 has a first length L1, and the second power connection portion 222 has a second length L2. The first length L1 and the second length L2 are configured to differ, so that the first power connection portion 221 and the second power connection portion 222 have different lengths. In this embodiment, the extension direction 260 of the conductive aluminum bus 210 is equal to the extension direction of the circuit board 250, that is, the longitudinal direction of the circuit board 250. The width direction 270 is perpendicular to the extension direction 260 and is also equal to the width direction of the circuit board 250. The length difference between the first power connection portion 221 and the second power connection portion 222 in the extension direction 260 or the width direction 270 facilitates foolproof judgment based on the length dimension during assembly, thereby increasing assembly accuracy. Furthermore, by setting the length difference between the first power connection portion 221 and the second power connection portion 222 to be greater than a preset value, the assembly fool-proofing function can be more reliably achieved, ensuring the effectiveness of the assembly, thereby effectively avoiding assembly errors caused by factors such as length tolerance and fitting clearance, further improving the accuracy and reliability of the assembly, and thereby reducing the production cost and quality risks caused by assembly errors, thereby facilitating the enhancement of the stability and safety of the battery connection system 200 for the energy storage battery.

[0069] In some embodiments, the first connection member 211 is configured as the positive pole of the conductive aluminum bar 210, the second connection member 212 is configured as the negative pole of the conductive aluminum bar 210, and the length of the first connection member 221 is greater than the length of the second connection member 222. This allows for intuitive distinction between the positive and negative poles, and this length difference enables workers or automated equipment to quickly and accurately identify the positive and negative poles during assembly, avoiding assembly errors caused by polarity confusion. In embodiments where the length difference between the first and second connection members 221, 222 is greater than a preset value, this design not only accounts for tolerances during the manufacturing process but also takes into account potential gaps during assembly, thereby further enhancing the assembly foolproofing feature. For example, even in the presence of manufacturing tolerances and assembly gaps, the significant length difference between the first and second connection members 221, 222 ensures that the positive and negative connection members will not be mistakenly interchanged, effectively reducing the risk of assembly errors.

[0070] This embodiment is applied in automated production lines. This length discrepancy can be quickly identified by mechanical or optical inspection equipment, enabling automated assembly and quality inspection. Automated equipment can quickly determine whether the electrical connector is correctly installed based on preset length standards, further improving production efficiency and quality control. Furthermore, this length-based foolproofing design is simple in structure and does not require complex mechanical structures or electronic components. It can be implemented simply by adjusting the length of the electrical connector, making it easy to implement in existing production processes without the need for additional equipment or complex process modifications, thereby reducing production costs.

[0071] In some embodiments, the first connector 211 and the second connector 212 have different shapes. In some embodiments, the first connector portion 221 and the second connector portion 222 have different shapes, meaning the difference in shape between the first connector 211 and the second connector 212 is reflected by the first connector portion 221 and the second connector portion 222. For example, the first connector 211, excluding the first connector portion 221, and the second connector 212, excluding the second connector portion 222, have the same shape. For example, the first connector 211 may be rectangular and the second connector 212 may be trapezoidal, or vice versa. Alternatively, the first connector portion 221 may be rectangular and the second connector portion 222 may be trapezoidal, or vice versa. This design, by giving first power connection portion 221 and second power connection portion 222 different shapes, allows workers or automated equipment to quickly identify the positive and negative power connections during assembly by visually distinguishing the differences in shape. This shape difference is more noticeable than a simple length difference, further reducing the possibility of assembly errors. Furthermore, in addition to length differences, shape differences provide another foolproofing measure. Even when the length difference is subtle or overlooked, the shape difference can still ensure the correct installation of the power connection. This multi-dimensional foolproofing design greatly improves the reliability and safety of the system while also increasing assembly efficiency. It can significantly reduce assembly time, particularly in large-scale production and automated assembly lines.

[0072] For example, the first connector 211 or its first connection portion 221 has a first shape, while the second connector 212 or its second connection portion 222 has a second shape, with the first shape and the second shape being different. The first connection base 411 of the end plate 400 has a first shape corresponding to the first connector 211 or its first connection portion 221, while the second connection base 421 of the end plate 400 has a second shape corresponding to the second connector 212 or its second connection portion 222. This allows for more complex shape differences to be designed for applications requiring higher foolproofing requirements, while simpler shape differences can be employed for simpler applications. This flexibility allows the design to adapt to a variety of different environments and requirements. By designing with different shapes, it effectively prevents safety incidents such as short circuits and overheating caused by incorrect polarity connections, thereby improving the overall safety of the system. Furthermore, this shape-based design can be combined with other foolproofing measures to further enhance the system's foolproofing effectiveness. Furthermore, this design facilitates future technological upgrades and expansions, such as adding new foolproofing features or improving existing designs. Furthermore, the design of shape differences can be achieved through simple mold manufacturing and processing, without the need for complex mechanical structures or electronic components. This simple design is easy to implement in existing production processes, reducing production costs and process complexity.

[0073] In some embodiments, such as Figure 4 and Figure 5 As shown, the first electrical connector 211 and the second electrical connector 212 have different positioning structures 214 , wherein the positioning structures include a protrusion and a groove. Figure 4 and Figure 5 In the illustrated embodiment, the positioning structures 214 of the first and second connectors 211, 212 are grooves positioned differently to provide positioning and prevent errors, ensuring accurate installation of the first and second connectors 211, 212. In other embodiments other than those shown, the first and second connectors 211, 212 may also have identical positioning structures 214 to provide positioning. In some embodiments, the positioning structures extend through both the first and second connectors 211, 212; alternatively, the positioning structures are located at the edges of the first and second connectors 211, 212. For example, a first positioning structure is provided at the edge of the first connector 211, and a second positioning structure is provided at the edge of the second connector 212. The first and second positioning structures are configured in different shapes and have interlocking structures to facilitate production. Exemplarily, the first positioning structure and the second positioning structure with mutually engaging structures are spliced ​​into a complete rectangle, a rounded rectangle or other shapes, so that the middle engaging position presents an overall shape without gaps after splicing, which can reduce the number of molds opened for rapid production. With such a design, on the one hand, the cooperation of the protrusions and the grooves can ensure that the power connection parts are accurately positioned during assembly, reducing assembly errors, and the through-type positioning structure or the positioning structure located at the edge can effectively limit the movement of the power connection parts during the assembly process, ensuring the accuracy of their position. Therefore, this design is particularly suitable for energy storage battery devices 100 that require high-precision connections, and can significantly reduce poor contact or short circuit problems caused by assembly deviations. On the other hand, the protrusion and groove design of the positioning structure makes the assembly process more intuitive and faster. Assemblers or automated equipment can complete the assembly through simple alignment operations, further improving the fool-proof assembly effect and reducing assembly time and complexity. On the other hand, the through-type positioning structure can provide stronger mechanical stability, ensuring that the power connection parts will not loosen due to vibration or external force during long-term use. In addition, the positioning structure located at the edge can effectively prevent the power connection parts from being misaligned during assembly, further improving the stability and reliability of the system. Therefore, this design is particularly suitable for energy storage battery devices 100 that need to operate in complex environments.

[0074] Specifically, the positioning structure can be provided at the first power connection portion 221 of the first power connection member 211 and the second power connection portion 222 of the second power connection member 212. In some embodiments, the first power connection portion 221 and the second power connection portion 222 have different positioning structures; wherein the positioning structure runs through the first power connection portion 221 and the second power connection portion 222; or, the positioning structure is located at the edge of the first power connection portion 221 and the edge of the second power connection portion 222. Exemplarily, a first positioning structure is provided at the edge of the first power connection portion 221, and a second positioning structure is provided at the edge of the second power connection portion 222. The first positioning structure and the second positioning structure are arranged in different shapes and have mutually engaging structures to facilitate production and preparation. The specific beneficial effects are the same as above and will not be repeated here.

[0075] In some embodiments, such as Figure 3 or Figure 6 As shown, the battery connection system 200 of the energy storage battery also includes a circuit board 250; and the circuit board 250 is provided with at least two through holes, which are configured for identification by the charge-coupled device detection equipment to serve as an assembly foolproofing feature for the circuit board 250. Such a design, on the one hand, is conducive to identification by the detection equipment and can effectively prevent the circuit board 250 from having the wrong direction or position during the assembly process, thereby ensuring the correct installation of the circuit board 250; and such foolproofing design further reduces assembly errors caused by human factors and improves the reliability and consistency of the assembly process. On the other hand, the through holes serve as detection marks, allowing the charge-coupled device detection equipment to quickly and accurately identify the assembly status of the circuit board, reducing detection time and labor costs. Automated detection equipment can use these through holes for rapid positioning and detection, improving detection efficiency while reducing quality problems caused by inaccurate detection.

[0076] In some embodiments, at least two through-holes exhibit different shapes in different sequences along the extension direction 260 of the conductive aluminum bar 210. In some embodiments, the through-holes include a first through-hole 251 and a second through-hole 252. The first through-holes 251 and the second through-holes 252 have different numbers, different position distributions, or second different specifications to match the first electrical connector 211 and the second electrical connector 212, thereby serving as a fool-proof assembly system for the battery connection system 200 of the energy storage battery. This design, by utilizing the differences in through-hole morphology, can effectively prevent the circuit board 250 from being incorrectly installed during assembly, allowing assemblers or automated equipment to quickly identify the correct assembly direction, thereby reducing assembly errors. Furthermore, the different through-hole morphology makes the assembly process more intuitive and faster. Assemblers or automated equipment can complete assembly through simple alignment operations, reducing assembly time and complexity, further enhancing the fool-proofing effect, and reducing rework and repair time caused by assembly errors, further improving production efficiency. On the other hand, the morphological differences of the through holes can be quickly identified by the charge-coupled device detection equipment, which is conducive to the implementation of automated detection. It not only improves the detection efficiency, but also reduces the quality problems caused by inaccurate detection, and further improves the quality control level of the production process.

[0077] To enhance safety, in some embodiments, through-holes are configured to expose the explosion-proof valves 310 of the battery cells 300 connected to the conductive aluminum busbars 210. In some embodiments, the through-holes include a first through-hole 251 and a second through-hole 252. The first through-holes 251 and the second through-holes 252 have different areas to expose different numbers of explosion-proof valves 310. In some embodiments, the through-holes include a first through-hole 251 and a second through-hole 252. The first through-hole 251 is configured to expose all of the explosion-proof valves 310 of the battery cells 300 connected to the conductive aluminum busbars 210, meaning that the second through-holes 252 do not need to expose the explosion-proof valves 310. In other words, in relevant embodiments of the energy storage battery device 100, the explosion-proof valves 310 of the battery cells 300 are exposed outside the circuit board 250 through the through-holes. Such a design, by exposing the explosion-proof valve 310 through the through hole, ensures that the explosion-proof valve 310 can be quickly inspected or maintained when necessary, and reserves a certain buffer space for the explosion-proof valve 310, thereby reducing the risk of system failure caused by explosion-proof valve failure, thereby improving the reliability of the energy storage battery device 100 or the battery connection system 200 of the energy storage battery; on the other hand, the first through hole 251 and the second through hole 252 have different areas, which can be flexibly designed according to different battery cell 300 configurations and the number of explosion-proof valves 310, further enhancing the fool-proofing effect. In addition, this design reduces rework and repair time caused by assembly errors, thereby improving production efficiency.

[0078] In this way, by opening a through hole on the circuit board 250, a foolproof design of an asymmetric hole can be realized, so that the battery connection system 200 of the energy storage battery can be inspected by an automatic inspection method during the assembly process. The following is an example of photographic inspection. In some embodiments, such as Figure 6 and Figure 7 As shown, the detection system or detection equipment pre-stores a correct installation image of the circuit board 250 as a template, and selects key locations in the template as feature points. The battery connection system 200 of the energy storage battery takes a photo after completing the installation process of the circuit board 250 to obtain the current installation image, which is automatically compared with the template. In this way, by combining the charge coupled device (CCD) for judgment, the assembly efficiency can be further improved. That is, for the same product, by presenting different shapes, such as asymmetric through-hole design, it can be identified by the charge coupled device detection equipment, so as to prevent mistakes in the assembly of the circuit board 250. As an example, if the battery connection system 200 of the energy storage battery is as follows Figure 6 As shown, the detection direction 600 is entered for detection. If it is determined to be installed correctly, the detection equipment does not alarm or process, and the process is transferred to the work station for component welding. If the battery connection system 200 of the energy storage battery is as shown Figure 7 As shown, if the inspection is performed in direction 600, it is determined to be an installation error, the inspection equipment will issue an alarm, and the component will be removed from the process, preventing it from being transferred to the welding station. This fool-proofing structure allows for asymmetric openings and CCD image recognition inspection during CCS installation, preventing incorrectly installed CCSs from being transferred to welding stations, which would result in unnecessary rework and waste. This improves CCS assembly efficiency and reliability, thereby significantly enhancing production efficiency and assembly reliability.

[0079] The following examples illustrate the foolproof design of the battery connection system 200 for the energy storage battery. In each embodiment, the first power connection portion 221 and the second power connection portion 222 in the battery connection system 200 for the energy storage battery have different lengths, that is, different widths are designed as a first foolproof structure. Different widths are reserved for the positive and negative bases at corresponding positions of the end plate 400. During installation, these different width structures are utilized to match the different reserved width structures at the positive and negative base positions of the end plate 400 to achieve foolproof installation, thereby improving installation efficiency and reliability. In this way, the foolproof structure is provided on the positive and negative output poles of the CCS, and the corresponding two end plates 400 have different structures, achieving the purpose of foolproof installation.

[0080] For example, Figure 13As shown, the first power connection base 411 is snap-fitted with the first power connection member 211 or the first power connection portion 221, and the second power connection base 421 is snap-fitted with the second power connection member 212 or the second power connection portion 222. The first power connection base 411 and the second power connection base 421 have different slot sizes, that is, the slot sizes of the first power connection base 411 and the second power connection base 421 are different. Among them, the first power connection base 411 is used to install the first power connection portion 221 of the first power connection member 211, and the first power connection portion 221 has a first length L1. The second power connection base 421 is used to install the second power connection portion 222 of the second power connection member 212, and the second power connection portion 222 has a second length L2. The first length L1 and the second length L2 are set differently. It should be noted that since the difference between the first length L1 and the second length L2 is small, for example, the difference is on the millimeter level, Figure 13 The slots of the first power socket 411 and the second power socket 421 are similar in size. Figure 13 The lengths of the slots of the first power connection base 411 and the second power connection base 421 are indicated as first length L1 and second length L2, respectively. In practice, a clearance is typically required—that is, the slot length of the first power connection base 411 is slightly longer than the first length L1, and the slot length of the second power connection base 421 is slightly longer than the second length L2—to facilitate assembly while maintaining a foolproof design. In other embodiments not shown, the first power connection base 411 and the second power connection base 421 have different slot shapes, or the slots of the first power connection base 411 and the second power connection base 421 differ in size and shape. For example, the end plate 400 can be designed with an asymmetrical shape, for example, with the first power connection base 411 being rectangular and the second power connection base 421 being trapezoidal, or with notches or protrusions of varying shapes on the edge of the end plate 400. This design, in conjunction with the first power connection element 211 and the second power connection element 212, achieves a foolproof design.

[0081] As an example, the CCS or its circuit board 250 may be provided with an asymmetric opening structure, or through-holes. This opening structure serves as a second foolproof structure, and is used to expose the explosion-proof valves 310 of the battery cells 300. Asymmetric opening structures include, but are not limited to, inconsistent opening sizes, inconsistent opening shapes, and inconsistent numbers of explosion-proof valves exposed by the opening structure. For example, a large opening is provided on the CCS, exposing all corresponding explosion-proof valves, with a small portion left on one side of the large opening for foolproofing or testing.

[0082] In some embodiments, such as Figure 8 and Figure 9As shown, the battery connection system 200 for an energy storage battery further includes an isolation plate 230, which is disposed on the conductive aluminum busbar 210. In some embodiments, a circuit board 250 is disposed on the isolation plate 230 and positioned between the isolation plate 230 and the conductive aluminum busbar 210. Specifically, in embodiments having the circuit board 250, the isolation plate 230 is disposed on the conductive aluminum busbar 210, and the circuit board 250 is disposed on the isolation plate 230, i.e., the isolation plate 230 is positioned between the circuit board 250 and the conductive aluminum busbar 210. This design, with the isolation plate 230 disposed on the conductive aluminum busbar 210, effectively provides physical isolation, such as preventing spraying, thereby enhancing the safety of the battery connection system 200 for the energy storage battery. It also secures the position of the conductive aluminum busbar 210, preventing displacement or deformation during assembly and use. Furthermore, it provides additional support for the conductive aluminum busbar 210, enhancing the mechanical stability of the battery connection system 200 for the energy storage battery and reducing damage caused by external forces or vibration.

[0083] In some embodiments, the isolation plate 230 has an isolation shape corresponding to the first and second electrical connectors 211, 212. The isolation shape is configured to prevent errors during assembly of the battery connection system 200 for the energy storage battery. This design, in which the isolation shape of the isolation plate 230 corresponds to the shapes of the first and second electrical connectors 211, 212, ensures that only the correct assembly method can be used during assembly. This design utilizes a physical structure to restrict incorrect assembly directions, thereby effectively preventing short circuits or other electrical failures caused by assembly errors. Furthermore, the isolation plate 230 can also serve as a positioning reference during assembly. By precisely matching the isolation shape, assemblers or automated equipment can quickly identify the correct assembly position, reducing the error rate during the assembly process. Furthermore, since the likelihood of assembly errors is reduced, post-assembly inspection and calibration time is also reduced, further improving production efficiency.

[0084] For example, a spray isolation plate is installed above the CCS to isolate the ejected electrolyte and prevent it from spreading. If multiple explosion-proof valves 310 correspond to the same opening, a raised portion can be provided on the side of the spray isolation plate facing the battery cell to separate adjacent explosion-proof valves.

[0085] In some embodiments, combined Figure 10 and Figure 11The battery connection system 200 for the energy storage battery also includes a circuit board 250. The circuit board 250 has at least two through-holes configured to be identified by a charge-coupled device detection device to prevent assembly errors of the circuit board 250. At least one through-hole is a first through-hole 251, which is configured to expose at least two explosion-proof valves 310 of the battery cell 300 connected to the conductive aluminum busbar 210. The isolation plate 230 has a protrusion 231, which is embedded in the first through-hole 251 and is configured to isolate adjacent explosion-proof valves 310. In other embodiments, other through-holes, such as the second through-hole 252, can be configured to expose the explosion-proof valve 310, or can be configured to block the explosion-proof valve 310, or the second through-hole 252 can avoid the explosion-proof valve 310. As an example, the first through-hole 251 is configured to expose at least two explosion-proof valves 310, and the second through-hole 252 is configured to expose at most one explosion-proof valve 310. For example, each through-hole is configured to expose at least two explosion-proof valves 310. Compared to the embodiment in which one through-hole exposes one explosion-proof valve 310, the embodiment in which one through-hole exposes at least two explosion-proof valves 310 is beneficial for improving the flexibility of the separator 230 in the CCS. On the one hand, the battery cell 300 will expand and contract in volume during the charge and discharge process, especially in high-energy-density batteries, where this phenomenon is more pronounced. A more flexible separator 230 can better follow the deformation of the battery cell 300, preventing the separator 230 from rupturing or being damaged due to the expansion of the battery cell 300, and ensuring that the separator 230 always maintains a good isolation effect. On the other hand, when the battery module having the battery cell 300 is subjected to vibration and impact, the more flexible isolation plate 230 can play a better buffering role, thereby facilitating the absorption of vibration energy, thereby reducing the risk of damage to the battery cell 300 and improving the stability of the battery module, such as the energy storage battery device 100.

[0086] Illustratively, the isolation plate 230 has slots corresponding to the through-holes, with the slots corresponding to the exposed through-holes. The slots, in conjunction with the corresponding through-holes, expose the explosion-proof valves 310 of the battery cells 300 connected to the conductive aluminum busbar 210. Furthermore, the isolation plate 230 has a raised portion 231 at the edge of the slots, which is embedded in the first through-hole 251. This design, by providing raised portions 231 on the isolation plate 230 to separate two adjacent explosion-proof valves 310, can mitigate thermal runaway or damage to adjacent battery cells 300 in the event of thermal runaway in one battery cell 300. Furthermore, at least two through-holes on the circuit board 250 are configured for identification by charge-coupled device (CCD) detection equipment, ensuring proper installation of the circuit board during assembly and preventing failures caused by assembly errors. The raised portions 231 of the isolation plate 230, embedded in the first through-hole 251, further enhance assembly accuracy and prevent incorrect connections between the circuit board and the conductive aluminum busbar 210. On the other hand, the raised portion 231 is configured to isolate adjacent explosion-proof valves 310. Combined with the embodiment having an empty slot, this not only provides a buffer space but also prevents mutual interference between the explosion-proof valves, further improving the safety of the battery connection system 200 for the energy storage battery, thereby improving the safety of the energy storage battery device 100 that utilizes the battery connection system 200 for the energy storage battery. Furthermore, the coordinated design of the through-hole and raised portion 231 makes the assembly process more intuitive and faster, reducing assembly time and complexity. By preventing assembly errors and ensuring accessibility to the explosion-proof valves, the risk of system failure due to assembly errors or explosion-proof valve failure is reduced.

[0087] In some embodiments, such as Figure 11 and Figure 12 As shown, the battery connection system 200 of the energy storage battery further includes a wiring harness 240 connecting the circuit board 250 and the battery cells 300, for transmitting the electrical signals of each battery cell 300 to the circuit board 250. As an example, Figure 11 In the illustrated embodiment, the battery connection system 200 of the energy storage battery further includes a fixing member 280 for fixing the battery cells 300 to each other.

[0088] In some embodiments, an electrical device includes an energy storage battery device 100 according to any embodiment. It is understood that the electrical device includes any embodiment of the energy storage battery device 100 and therefore also has the corresponding beneficial effects of any embodiment of the energy storage battery device 100, as well as the corresponding beneficial effects of the energy storage battery device 100 using the battery connection system 200 of any embodiment of the energy storage battery, which are not described in detail here. By way of example, the electrical device includes a solar power generation system, a wind power generation system, grid peak and frequency regulation equipment, a backup power supply, an uninterruptible power supply, and the like.

[0089] It should be noted that other embodiments of the present application also include battery connection systems, energy storage battery devices, and electrical equipment for energy storage batteries that can be implemented by combining the technical features in the above embodiments.

[0090] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0091] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, all of which fall within the scope of protection of the present application. Therefore, the scope of patent protection for the present application shall be determined by the appended claims.

Claims

1. A battery connection system (200) for an energy storage battery, characterized in that: including a conductive aluminum busbar (210); The conductive aluminum bar (210) comprises a first electrical connection piece (211) and a second electrical connection piece (212); The first power connection piece (211) and the second power connection piece (212) have first different specifications, and the first different specifications are configured to prevent foolishness in the assembly of the battery connection system (200) of the energy storage battery; The first power connection portion (221) of the first power connection member (211) and the second power connection portion (222) of the second power connection member (212) have different lengths; The first power connection member (211) and the second power connection member (212) have different positioning structures (214), wherein the positioning structures include a convex portion and a concave portion; The battery connection system (200) for the energy storage battery further comprises a circuit board (250), wherein the circuit board (250) is provided with at least two through holes, and the at least two through holes are configured to be recognized by a charge coupled device detection device to serve as foolproofing for assembly of the circuit board (250); At least two of the through holes present different shapes in different orders along the extension direction (260) of the conductive aluminum bar (210); wherein the through holes include a first through hole (251) and a second through hole (252), and the first through hole (251) and the second through hole (252) have different areas to expose different numbers of explosion-proof valves (310) of the battery cells (300) connected to the conductive aluminum bar (210); The battery connection system (200) of the energy storage battery further includes an isolation plate (230), the isolation plate (230) being arranged on the conductive aluminum bar (210); the isolation plate (230) being provided with a slot corresponding to the through hole, the slot cooperating with the corresponding through hole to expose the explosion-proof valve (310); and the isolation plate (230) being provided with a protrusion (231) at the edge of the slot, the protrusion (231) being embedded in the first through hole (251), and the protrusion (231) being configured to isolate adjacent explosion-proof valves (310).

2. The battery connection system (200) of the energy storage battery according to claim 1, characterized in that: In an extension direction (260) of the conductive aluminum bar (210) or a width direction (270) perpendicular to the extension direction (260), a length difference between the first power connection portion (221) and the second power connection portion (222) is greater than a preset value, the preset value being the sum of a length tolerance of the conductive aluminum bar (210) and twice the fitting clearance.

3. The battery connection system (200) of the energy storage battery according to claim 1, characterized in that: The first electrical connection member (211) is configured as the positive electrode of the conductive aluminum bar (210), the second electrical connection member (212) is configured as the negative electrode of the conductive aluminum bar (210), and the length of the first electrical connection portion (221) is greater than the length of the second electrical connection portion (222).

4. The battery connection system (200) of the energy storage battery according to claim 1, characterized in that: The first power connection piece (211) and the second power connection piece (212) have different shapes.

5. The battery connection system (200) of the energy storage battery according to claim 1, characterized in that: The first power connection portion (221) and the second power connection portion (222) have different shapes.

6. The battery connection system (200) of the energy storage battery according to claim 1, characterized in that: The positioning structure passes through the first power connection piece (211) and the second power connection piece (212).

7. The battery connection system (200) of the energy storage battery according to claim 1, characterized in that: The positioning structure is located at an edge of the first power connection piece (211) and an edge of the second power connection piece (212).

8. The battery connection system (200) of the energy storage battery according to claim 1, characterized in that: The first power connection portion (221) and the second power connection portion (222) have different positioning structures; The positioning structure passes through the first power connection portion (221) and the second power connection portion (222); or the positioning structure is located at an edge of the first power connection portion (221) and an edge of the second power connection portion (222).

9. The battery connection system (200) of the energy storage battery according to claim 1, characterized in that: A first positioning structure is provided at the edge of the first power connection portion (221), and a second positioning structure is provided at the edge of the second power connection portion (222). The first positioning structure and the second positioning structure are arranged in different shapes and have mutually engaged structures.

10. The battery connection system (200) of the energy storage battery according to claim 1, characterized in that: The first through holes (251) and the second through holes (252) have different numbers, different position distributions or second different specifications to match the first power connection piece (211) and the second power connection piece (212) as foolproof assembly of the battery connection system (200) of the energy storage battery.

11. The battery connection system (200) of the energy storage battery according to claim 1, characterized in that: The first through hole (251) is configured to expose all explosion-proof valves (310) of the battery cell (300) to which the conductive aluminum busbar (210) is connected.

12. The battery connection system (200) of the energy storage battery according to claim 1, characterized in that: The isolation plate (230) has an isolation shape corresponding to the first power connection piece (211) and the second power connection piece (212), and the isolation shape is configured to prevent foolishness in the assembly of the battery connection system (200) of the energy storage battery.

13. The battery connection system (200) of the energy storage battery according to claim 1, characterized in that: The circuit board (250) is arranged on the isolation plate (230) and is located between the isolation plate (230) and the conductive aluminum bar (210).

14. An energy storage battery device (100), characterized in that: A battery connection system (200) comprising a battery cell (300), an end plate (400), and an energy storage battery according to any one of claims 1 to 13; The conductive aluminum busbar (210) of the battery connection system (200) of the energy storage battery is connected to the electrode (320) of the battery cell (300); The end plate (400) is provided with a first power connection base (411) and a second power connection base (421); The first power connection piece (211) of the conductive aluminum bar (210) is mounted on the first power connection base (411), and the second power connection piece (212) of the conductive aluminum bar (210) is mounted on the second power connection base (421); The first power connection base (411) and the second power connection base (421) have different assembly lengths to adapt to the first power connection portion (221) of the first power connection member (211) and the second power connection portion (222) of the second power connection member (212).

15. The energy storage battery device (100) according to claim 14, characterized in that: The end plate (400) is further provided with an insert (430), and the first power connection base (411) and the second power connection base (421) respectively achieve different assembly lengths through different inserts (430); The first power connection part (221) is arranged on the first power connection base (411) through an insert (430), and the second power connection part (222) is arranged on the second power connection base (421) through another insert (430).

16. An electrical device, characterized in that: Comprising the energy storage battery device (100) according to any one of claims 14 to 15.

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