Series battery pack and energy storage cabinet

Abstract

The utility model discloses a series battery pack and an energy storage cabinet, relates to the field of batteries, and solves the problem that the system operation is influenced due to the need of shutdown when the battery pack is overhauled. According to the invention, the pluggable conduction copper bar is embedded in the first clamping groove and the first switching clamping groove or embedded in the second clamping groove and the second switching clamping groove, so that rapid connection and disconnection operation between the battery packs is realized, the effect of rapid switching of the battery packs without shutdown is realized, and the operation efficiency and safety of the system are improved. When a certain battery pack needs to be overhauled, the pluggable conducting copper bar is embedded in the second clamping groove and the second switching clamping groove; when the battery pack is normally connected, the pluggable conducting copper bar is embedded in the first clamping groove and the first switching clamping groove. Through the pluggable copper bar device, the battery pack can be quickly put in or cut out, so that the downtime is reduced, and the operation efficiency of the energy storage system is improved. Due to the design of the copper bar device, the battery pack can be maintained and replaced without shutdown, and the operation risk is reduced.

Description

Technical Field

[0001] This utility model relates to the field of batteries, and in particular to a series battery pack and energy storage cabinet. Background Technology

[0002] In existing energy storage systems, battery clusters consist of multiple battery packs, each containing multiple battery cells connected in series. In practical applications, due to potential differences in parameters such as voltage and current between different battery packs, maintenance and repair operations may be required during battery cell operation.

[0003] Typically, when overhauling a battery pack, the entire energy storage system must be shut down first before the battery pack can be repaired. During the repair and maintenance process, the entire battery cluster cannot function, which greatly affects the system's operating efficiency and increases maintenance costs.

[0004] Therefore, how to solve the problem of system downtime required for battery pack maintenance, which affects system operation, is a technical problem that urgently needs to be solved by those in this field. Utility Model Content

[0005] The purpose of this invention is to provide a series battery pack and energy storage cabinet to solve the problem of system downtime required for battery pack maintenance, which affects system operation.

[0006] To solve the above-mentioned technical problems, this utility model provides a series battery pack, including: multiple battery packs and multiple pluggable copper busbar devices, wherein the number of battery packs and pluggable copper busbar devices is equal; the battery packs are connected in series through the pluggable copper busbar devices; the pluggable copper busbar device includes: a device mounting plate, a first copper busbar, a second copper busbar, a third copper busbar, and a pluggable conductive copper busbar.

[0007] The first copper busbar, the second copper busbar, and the third copper busbar are fixed on the device mounting plate; the first copper busbar is provided with a first slot, the second copper busbar is provided with a second slot, and the third copper busbar is provided with a first switching slot and a second switching slot; the pluggable conductive copper busbar is embedded in the first slot and the first switching slot to connect the first copper busbar and the third copper busbar, or embedded in the second slot and the second switching slot to connect the second copper busbar and the third copper busbar;

[0008] The first copper busbar of each of the pluggable copper busbar devices is connected to the negative output terminal of the first battery pack, the second copper busbar is connected to the positive output terminal of the first battery pack, and the third copper busbar is connected to the positive output terminal of the second battery pack; the total positive output terminal of the series-connected battery packs is connected to the positive external battery interface, and the total negative output terminal of the series-connected battery packs is connected to the negative external battery interface.

[0009] As an optional solution, the above-mentioned series battery pack also includes: a battery frame; the battery frame includes multiple battery pack mounting positions, multiple pluggable copper busbar mounting positions, and multiple battery pack panels;

[0010] The battery pack mounting positions and the pluggable copper busbar mounting positions are arranged at intervals.

[0011] Each of the battery packs is detachably installed in its respective battery pack mounting position, and each of the pluggable copper busbar devices is detachably installed in its pluggable copper busbar device mounting position.

[0012] The battery pack panel is detachably installed at each of the battery pack mounting positions, and the battery pack panel is electrically connected to the corresponding battery pack.

[0013] As an optional solution, in the above-mentioned series battery pack, the pluggable copper busbar device further includes: a PC cover plate;

[0014] The PC cover plate is detachably mounted on the device mounting plate.

[0015] As an alternative, in the above-mentioned series battery pack, the third copper busbar is connected to the positive output terminal of the second battery pack via a connecting copper busbar.

[0016] As an alternative, in the above-mentioned series battery pack, the first slot, the second slot, the first switching slot, and the second switching slot are horn-shaped opening slots;

[0017] The surface of the horn-shaped opening groove is provided with an anti-slip texture.

[0018] As an alternative, in the aforementioned series battery pack, each pluggable copper busbar device has a uniquely matched mechanical locking structure between its pluggable conductive copper busbar and its corresponding slot.

[0019] As an alternative, in the aforementioned series-connected battery pack, the mechanical locking structure includes a locking pin and a locking hole.

[0020] As an alternative, in the aforementioned series battery pack, the pluggable conductive copper busbar is provided with an insulating handle.

[0021] As an alternative, in the above-mentioned series battery pack, the first copper busbar, the second copper busbar, and the third copper busbar are fixed to the device mounting plate by bolts.

[0022] To address the aforementioned issues, this application also provides an energy storage cabinet, including the aforementioned series-connected battery pack.

[0023] The series battery pack provided by this utility model includes: multiple battery packs and multiple pluggable copper busbar devices, wherein the number of battery packs and pluggable copper busbar devices are equal; the battery packs are connected in series through the pluggable copper busbar devices; the pluggable copper busbar device includes: a device mounting plate, a first copper busbar, a second copper busbar, a third copper busbar, and a pluggable conductive copper busbar; the first copper busbar, the second copper busbar, and the third copper busbar are fixed on the device mounting plate; the first copper busbar is provided with a first slot, the second copper busbar is provided with a second slot, and the third copper busbar is provided with a first switching slot and a second switching slot. The system includes slots; pluggable conductive copper busbars are embedded in the first slot and the first switching slot, connecting the first copper busbar and the third copper busbar, or embedded in the second slot and the second switching slot, connecting the second copper busbar and the third copper busbar; the first copper busbar of each pluggable copper busbar device is connected to the negative output terminal of the first battery pack, the second copper busbar is connected to the positive output terminal of the first battery pack, and the third copper busbar is connected to the positive output terminal of the second battery pack; the total positive output terminal of the series-connected battery packs is connected to the positive external battery interface, and the total negative output terminal of the series-connected battery packs is connected to the negative external battery interface. This application achieves rapid connection and disconnection operations between battery packs by "pluggable conductive copper busbars embedded in the first slot and the first switching slot" or "embedded in the second slot and the second switching slot"; this design achieves the effect of rapid switching of battery packs without stopping the system, improving the operating efficiency and safety of the system. When a battery pack needs maintenance, a pluggable conductive copper busbar is inserted into the second slot and the second switching slot; when the battery pack is normally connected, the pluggable conductive copper busbar is inserted into the first slot and the first switching slot. This pluggable copper busbar device allows for rapid deployment or disconnection of battery packs, reducing downtime and improving the operating efficiency of the energy storage system. Due to the design of the copper busbar device, battery pack maintenance and replacement can be performed without shutting down the system, reducing operational risks. This design allows for flexible switching of battery packs within battery clusters, improving the system's adaptability and maintainability.

[0024] This application also provides an energy storage cabinet, which corresponds to the above-mentioned series-connected battery pack and has the same effect. Attached Figure Description

[0025] To more clearly illustrate the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 A schematic diagram of a series battery pack provided in an embodiment of this application;

[0027] Figure 2 A schematic diagram of a pluggable copper busbar device provided in an embodiment of this application;

[0028] Figure 3 A circuit diagram provided for an embodiment of this application;

[0029] Figure 4 A schematic diagram of another pluggable copper busbar device provided in an embodiment of this application;

[0030] Figure 5 A schematic diagram of another series-connected battery pack provided in an embodiment of this application;

[0031] Figure 6 This is a schematic diagram of a card slot provided in an embodiment of this application.

[0032] The reference numerals in the attached figures are as follows:

[0033] 11-Battery pack; 12-Pluggable copper busbar device; 13-Battery frame; 111-Positive output terminal of battery pack, 112-Negative output terminal of battery pack; 120-Device mounting plate; 121-First copper busbar; 122-Second copper busbar; 123-Third copper busbar; 124-Pluggable conductive copper busbar; 125-PC cover plate; 126-Connecting copper busbar. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] The core of this utility model is to provide a series battery pack and energy storage cabinet.

[0036] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0037] This application provides a series battery pack to solve the above problems. Figure 1 This is a schematic diagram of a series battery pack provided in an embodiment of this application. Figure 2 This is a schematic diagram of a pluggable copper busbar device 12 provided in an embodiment of this application, as shown below. Figure 1 , Figure 2 As shown, it includes: multiple battery packs 11 and multiple pluggable copper busbar devices 12, the number of battery packs 11 and pluggable copper busbar devices 12 are equal; the battery packs 11 are connected in series through the pluggable copper busbar devices 12; the pluggable copper busbar device 12 includes: device mounting plate 120, first copper busbar 121, second copper busbar 122, third copper busbar 123, and pluggable conductive copper busbar 124;

[0038] The first copper busbar 121, the second copper busbar 122, and the third copper busbar 123 are fixed on the device mounting plate 120. The first copper busbar 121 is provided with a first slot, the second copper busbar 122 is provided with a second slot, and the third copper busbar 123 is provided with a first switching slot and a second switching slot. A pluggable conductive copper busbar 124 is embedded in the first slot and the first switching slot to connect the first copper busbar 121 and the third copper busbar 123, or embedded in the second slot and the second switching slot to connect the second copper busbar 122 and the third copper busbar 123.

[0039] The first copper busbar 121 of each pluggable copper busbar device 12 is connected to the negative output terminal of the first battery pack 11, the second copper busbar 122 is connected to the positive output terminal of the first battery pack 11, and the third copper busbar 123 is connected to the positive output terminal of the second battery pack 11; the total positive output terminal of the series-connected battery packs 11 is connected to the positive external battery interface, and the total negative output terminal of the series-connected battery packs 11 is connected to the negative external battery interface.

[0040] It should be noted that the third copper busbar 123 of the last pluggable copper busbar device 12 is connected as the total negative output terminal of the series group; the positive output terminal of the first battery pack is the total positive output terminal of the series group.

[0041] In the above, multiple battery packs 11 refer to the basic units constituting a battery cluster, which can be specifically a series of battery cells with the same or different electrochemical characteristics (such as voltage and capacity); multiple pluggable copper busbar devices 12 refer to components used to realize electrical connections between battery packs 11, which can be specifically a series of copper conductive busbars designed for quick connection and disconnection; the positive and negative external interfaces of the battery refer to the external connection points of the positive and negative terminals of the battery pack 11, used for connection with external circuits.

[0042] like Figure 2 As shown, the device mounting plate 120 refers to the substrate used to fix the copper busbar device, which can be a metal or non-metal plate structure used to support and fix the copper busbar device; the first copper busbar 121, the second copper busbar 122, and the third copper busbar 123 refer to the three main conductive components constituting the copper busbar device, which can be three copper conductive busbars fixed on the device mounting plate 120 for connecting different battery pack 11 output terminals; the pluggable conductive copper busbar 124 refers to the component used to realize quick connection and disconnection between copper busbars, which can be a copper busbar designed with a pluggable structure for connecting the first copper busbar 121 and the third copper busbar 123 or the second copper busbar 122 and the third copper busbar 123 when needed.

[0043] The first slot, the second slot, the first switching slot, and the second switching slot refer to slots on the copper busbar, which are used for inserting and removing the pluggable conductive copper busbar 124. Specifically, the copper busbar may have a groove of a specific shape designed to fix the pluggable conductive copper busbar 124. The pluggable conductive copper busbar 124 achieves electrical connection between copper busbars by being inserted into the slot.

[0044] The connection between the first copper busbar 121 and the negative output terminal of the first battery pack 11 refers to an electrical connection. It should be noted that the first copper busbar 121 must be connected to the negative output terminal of the battery pack 11 to achieve series connection of the battery packs 11. The connection between the second copper busbar 122 and the positive output terminal of the first battery pack 11 refers to an electrical connection. The second copper busbar 122 must be connected to the positive output terminal of the battery pack 11 to achieve series connection of the battery packs 11. The connection between the third copper busbar 123 and the positive output terminal of the second battery pack 11 refers to an electrical connection. The third copper busbar 123 must be connected to the positive output terminal of the next battery pack 11 to achieve series connection of the battery packs 11.

[0045] In this solution, the battery pack 11 is quickly connected and disconnected by "the pluggable conductive copper busbar 124 being embedded in the first slot and the first switching slot" or "the second slot and the second switching slot". This design enables the battery pack 11 to switch quickly without stopping the system, thus improving the system's operating efficiency and safety. Figure 3 A circuit diagram provided for an embodiment of this application, such as Figure 3 As shown, when a battery pack 11 needs to be repaired, the pluggable conductive copper busbar 124 is embedded in the second slot and the second switching slot; when the battery pack 11 is normally connected, the pluggable conductive copper busbar 124 is embedded in the first slot and the first switching slot.

[0046] It should be noted that, to ensure operational safety and reliability, the structure of the "pluggable copper busbar device 12" must include "device mounting plate 120, first copper busbar 121, second copper busbar 122, third copper busbar 123, and pluggable conductive copper busbar 124". Meanwhile, the material type of the "device mounting plate 120" is not limited; either metallic or non-metallic materials can be selected according to actual needs. This design is suitable for various types of energy storage systems and has good versatility and scalability.

[0047] The series battery pack provided in this application embodiment includes: multiple battery packs 11 and multiple pluggable copper busbar devices 12, wherein the number of battery packs 11 and pluggable copper busbar devices 12 is equal; the battery packs 11 are connected in series through the pluggable copper busbar devices 12; the pluggable copper busbar device 12 includes: a device mounting plate 120, a first copper busbar 121, a second copper busbar 122, a third copper busbar 123, and a pluggable conductive copper busbar 124; the first copper busbar 121, the second copper busbar 122, and the third copper busbar 123 are fixed on the device mounting plate 120; the first copper busbar 121 is provided with a first slot, the second copper busbar 122 is provided with a second slot, and the third copper busbar 123 is provided with a first cut The system includes a first card slot and a second switching card slot; a pluggable conductive copper busbar 124 is embedded in the first card slot and the first switching card slot, connecting the first copper busbar 121 and the third copper busbar 123, or embedded in the second card slot and the second switching card slot, connecting the second copper busbar 122 and the third copper busbar 123; the first copper busbar 121 of each pluggable copper busbar device 12 is connected to the negative output terminal of the first battery pack 11, the second copper busbar 122 is connected to the positive output terminal of the first battery pack 11, and the third copper busbar 123 is connected to the positive output terminal of the second battery pack 11; the total positive output terminal of the series-connected battery packs 11 is connected to the positive external battery interface, and the total negative output terminal of the series-connected battery packs 11 is connected to the negative external battery interface. This application achieves rapid connection and disconnection operations between battery packs 11 by "pluggable conductive copper busbar 124 embedded in the first card slot and the first switching card slot" or "embedded in the second card slot and the second switching card slot"; this design achieves the effect of rapid switching of battery packs 11 without stopping the system, improving the operating efficiency and safety of the system. When maintenance is required on a battery pack 11, the pluggable conductive copper busbar 124 is inserted into the second slot and the second switching slot; when the battery pack 11 is normally connected, the pluggable conductive copper busbar 124 is inserted into the first slot and the first switching slot. The pluggable copper busbar device 12 allows for rapid connection or disconnection of the battery pack 11, thereby reducing downtime and improving the operating efficiency of the energy storage system. Due to the design of the copper busbar device, maintenance and replacement of the battery pack 11 can be performed without shutting down the system, reducing operational risks. This design allows for flexible switching of the battery pack 11 within the battery cluster, improving the system's adaptability and maintainability.

[0048] In one alternative embodiment, the pluggable copper busbar device 12 includes one or more sensors for monitoring parameters such as temperature, current, and voltage of the copper busbar to achieve real-time monitoring of the operating status of the battery pack 11. The device mounting plate 120 is marked with identification markings to indicate the correct installation position and orientation of the copper busbar, facilitating quick and accurate installation and maintenance by operators.

[0049] In a further specific embodiment, the above-mentioned series battery pack further includes: a battery frame 13; the battery frame 13 includes a plurality of battery pack 11 mounting positions, a plurality of pluggable copper busbar mounting positions, and a plurality of battery pack 11 panels.

[0050] The battery pack mounting position 11 and the pluggable copper busbar mounting position 12 are arranged at intervals.

[0051] Each battery pack 11 can be detachably installed in its respective battery pack 11 mounting position, and each pluggable copper busbar device 12 can be detachably installed in its pluggable copper busbar device 12 mounting position.

[0052] The battery pack 11 panel is designed to be detachable and installable at each battery pack 11 mounting position, and the battery pack 11 panel is electrically connected to the corresponding battery pack 11.

[0053] The battery frame 13 incorporates a battery pack 11 mounting location, a pluggable copper busbar mounting location, and a battery pack 11 panel structure to achieve a more modular and flexible battery pack 11 configuration.

[0054] Battery frame 13: refers to the support structure of the entire battery pack 11 system. Specifically, it can be a frame made of metal or high-strength plastic, used to fix and support the battery pack 11 and copper busbar device.

[0055] Battery pack 11 mounting position: refers to the preset position on the frame used to fix the battery pack 11. It can be a series of standardized slots or slots to ensure the accurate positioning and fixation of the battery pack 11.

[0056] Pluggable copper busbar device 12 mounting positions: refers to the positions on the frame used to fix the copper busbar device. Specifically, it can be a series of mounting holes or grooves that match the copper busbar device to ensure stable installation of the copper busbar device.

[0057] Battery pack 11 panel: refers to the panel covering the mounting position of battery pack 11, which contains the controller of battery pack 11. Specifically, it can be a protective cover used to protect the electrical connection parts of battery pack 11 and prevent dust and moisture from entering.

[0058] Each battery pack 11 is detachably installed in its mounting position, enabling quick replacement and maintenance. Each pluggable copper busbar device 12 is detachably installed in its mounting position, enabling quick installation and maintenance. This embodiment does not limit the number of mounting positions, nor does it limit whether all mounting positions must have a battery pack 11 and a pluggable copper busbar device 12 installed. A quick-locking mechanism, such as a snap-fit ​​or magnetic adsorption, is used between the battery pack 11 panel and the battery pack 11 to facilitate quick disassembly and installation. The bottom of the battery frame 13 is designed with casters or rails to facilitate the movement and positioning of the entire battery frame 13, especially when maintenance or replacement of the battery pack 11 is required.

[0059] The design of the battery pack 11 mounting position and the copper busbar mounting position enables the modularization of the battery pack 11 and the copper busbar, facilitating quick replacement and maintenance.

[0060] In a further specific embodiment, the above-described series-connected battery pack, Figure 4 A schematic diagram of another pluggable copper busbar device 12 provided in an embodiment of this application is shown below. Figure 4 As shown, the P pluggable copper busbar device 12 also includes: a PC cover plate 125;

[0061] PC cover 125 can be detachably installed on device mounting plate 120.

[0062] A C-cover plate refers to a protective cover made of polycarbonate (PC) material, used to cover and protect copper busbar assemblies. PC material is widely used due to its high transparency, impact resistance, and heat resistance. The PC cover plate 125 is detachably installed to protect the copper busbar assembly from external influences.

[0063] PC cover 125 provides physical protection for the copper busbar assembly, preventing the intrusion of dust, moisture, and other contaminants, thus extending the service life of the copper busbar assembly. The impact resistance of the PC material reduces the risk of damage to the copper busbar assembly due to external impacts, improving the safety of the entire battery pack 11 system. The removable design allows maintenance personnel to quickly remove PC cover 125 to perform necessary inspections and maintenance on the copper busbar assembly.

[0064] In a further specific embodiment, the above-described series-connected battery pack, Figure 5 This is a schematic diagram of another series battery pack provided in an embodiment of this application, as shown below. Figure 5 As shown, the third copper busbar 123 is connected to the positive output terminal of the second battery pack 11 via the connecting copper busbar 126.

[0065] Connecting copper busbar 126: This refers to the conductive component used to connect the third copper busbar 123 and the positive output terminal of the second battery pack 11. Specifically, it can be a copper busbar designed for current transmission. The third copper busbar 123 is connected to the positive output terminal of the second battery pack 11 via the connecting copper busbar. This connection enables current transmission and series connection between the battery packs 11, ensuring a stable and reliable electrical connection between the third copper busbar 123 and the positive output terminal of the second battery pack 11. The design of the connecting copper busbar allows for quick disconnection and reconnection of the electrical connection when maintenance or replacement of the battery pack 11 is required.

[0066] like Figure 5 As shown, the positive output terminal 111 and the negative output terminal 112 of each battery pack are copper busbars.

[0067] In a further specific embodiment, the above-described series-connected battery pack, Figure 6 This is a schematic diagram of a card slot provided in an embodiment of this application, as shown below. Figure 6 As shown, the first card slot, the second card slot, the first switching card slot, and the second switching card slot are horn-shaped opening slots;

[0068] The surface of the flared opening groove has an anti-slip texture.

[0069] Horn-shaped opening slot: This refers to the slot's cross-sectional shape, which resembles a horn, gradually widening inwards from the slot's entrance. This design helps guide the pluggable conductive copper busbar 124 to be smoothly inserted and removed.

[0070] Anti-slip texture: refers to the texture designed on the surface of the flared slot to increase the friction between the copper busbar and the slot, preventing the copper busbar from falling off when subjected to vibration or impact.

[0071] The pluggable conductive copper busbar 124 is designed to fit the shape of a flared slot, allowing for smooth insertion and secure placement within the slot. This connection ensures stable connection and rapid switching of the copper busbar. The anti-slip textured design increases friction between the copper busbar and the slot, ensuring stable positioning and preventing accidental dislodgement.

[0072] In a further specific embodiment, in the above-mentioned series battery pack, each pluggable copper busbar device 12 has a uniquely matched mechanical locking structure between its pluggable conductive copper busbar 124 and the corresponding slot.

[0073] The uniquely matched mechanical locking structure refers to a specific locking mechanism between each pluggable conductive copper busbar 124 and its corresponding slot. This mechanism is specially designed for each pair of copper busbars and slots, ensuring that only the correct copper busbar can be inserted into the corresponding slot and locked. The uniquely matched mechanical locking structure between the pluggable conductive copper busbar 124 and the slot achieves a safe and stable connection.

[0074] The pluggable conductive copper busbar 124 is designed to uniquely match the corresponding slot and is fixed by a mechanical locking structure after insertion. This connection relationship enables accurate positioning and safe locking of the copper busbar.

[0075] In a further specific embodiment, the mechanical locking structure of the aforementioned series battery pack includes a locking pin and a locking hole.

[0076] A locking pin is a protruding element designed to insert into a corresponding locking hole to secure the pluggable conductive copper busbar 124 and prevent it from accidentally falling out or shifting. A locking hole is a slot or hole on the copper busbar designed to receive the locking pin. When the locking pin is inserted into the locking hole, the copper busbar is secured. The cooperation between the locking pin and the locking hole ensures that the pluggable conductive copper busbar 124 can be firmly locked after being inserted into the slot. This connection achieves stable fixation and a safe connection for the copper busbar.

[0077] In a further specific embodiment, the aforementioned series battery pack has an insulating handle on the pluggable conductive copper busbar 124.

[0078] An insulated handle refers to a handle made of insulating material attached to the pluggable conductive copper busbar 124 to provide a gripping point when operating the copper busbar, while ensuring the safety of the operator. The insulated handle, fixed to the pluggable conductive copper busbar 124, provides a safe gripping point for the operator, making it easier and safer to connect or disconnect the copper busbar, allowing the operator to more easily insert or remove the copper busbar, especially in space-constrained situations.

[0079] The insulated handle can be made of heat- and chemical-resistant materials to ensure stable operation of the battery pack 11 in various environments. The insulated handle can be designed as a foldable or detachable structure to save space when not needed or for easy removal during maintenance.

[0080] In a further specific embodiment, the aforementioned series battery pack, the first copper busbar 121, the second copper busbar 122, and the third copper busbar 123 are fixed to the device mounting plate 120 by bolts.

[0081] The first copper busbar 121, the second copper busbar 122, and the third copper busbar 123 are secured to the device mounting plate 120 using bolts and nuts. Bolt securing allows for fine-tuning during installation and maintenance to ensure the correct position and tightness of the copper busbars. The bolts can be equipped with appropriate washers or spring washers to provide additional tightness and vibration damping, preventing the copper busbars from loosening after prolonged operation.

[0082] Finally, this application also provides an energy storage cabinet, which corresponds to the above-mentioned series-connected battery pack and has the same effect.

[0083] The series battery pack provided by this utility model has been described in detail above. The various embodiments in the specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to in the method section. It should be noted that those skilled in the art can make several improvements and modifications to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

[0084] It should also be noted that, in this specification, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A series-connected battery pack, characterized in that, include: Multiple battery packs (11) and multiple pluggable copper busbar devices (12), wherein the number of battery packs (11) and pluggable copper busbar devices (12) is equal; the battery packs (11) are connected in series through the pluggable copper busbar devices (12); the pluggable copper busbar device (12) includes: a device mounting plate (120), a first copper busbar (121), a second copper busbar (122), a third copper busbar (123), and a pluggable conductive copper busbar (124); The first copper busbar (121), the second copper busbar (122), and the third copper busbar (123) are fixed on the device mounting plate (120); the first copper busbar (121) is provided with a first slot, the second copper busbar (122) is provided with a second slot, and the third copper busbar (123) is provided with a first switching slot and a second switching slot; the pluggable conductive copper busbar (124) is embedded in the first slot and the first switching slot to connect the first copper busbar (121) and the third copper busbar (123), or embedded in the second slot and the second switching slot to connect the second copper busbar (122) and the third copper busbar (123); The first copper busbar (121) of each of the pluggable copper busbar devices (12) is connected to the negative output terminal of the first battery pack (11), the second copper busbar (122) is connected to the positive output terminal of the first battery pack (11), and the third copper busbar (123) is connected to the positive output terminal of the second battery pack (11); the total positive output terminal of the series-connected battery packs (11) is connected to the positive external battery interface, and the total negative output terminal of the series-connected battery packs (11) is connected to the negative external battery interface.

2. The series battery pack according to claim 1, characterized in that, Also includes: Battery frame (13); the battery frame (13) includes multiple battery pack (11) mounting positions, multiple pluggable copper busbar (12) mounting positions, and multiple battery pack (11) panels; The battery pack (11) mounting position and the pluggable copper busbar device (12) mounting position are arranged at intervals; Each of the battery packs (11) is detachably installed at the mounting position of each of the battery packs (11), and each of the pluggable copper busbar devices (12) is detachably installed at the mounting position of the pluggable copper busbar device (12); The battery pack (11) panel is detachably installed at each of the battery pack (11) mounting positions, and the battery pack (11) panel is electrically connected to the corresponding battery pack (11).

3. The series battery pack according to claim 1, characterized in that, The pluggable copper busbar device (12) further includes: a PC cover plate (125); The PC cover (125) is detachably mounted on the device mounting plate (120).

4. The series battery pack according to claim 1, characterized in that, The third copper busbar (123) is connected to the positive output terminal of the second battery pack (11) via a connecting copper busbar.

5. The series battery pack according to claim 1, characterized in that, The first card slot, the second card slot, the first switching card slot, and the second switching card slot are horn-shaped opening slots; The surface of the horn-shaped opening groove is provided with an anti-slip texture.

6. The series battery pack according to claim 5, characterized in that, Each of the pluggable copper busbar devices (12) has a uniquely matched mechanical locking structure between its pluggable conductive copper busbar (124) and the corresponding slot.

7. The series battery pack according to claim 6, characterized in that, The mechanical locking structure includes a locking pin and a locking hole.

8. The series battery pack according to claim 1, characterized in that, An insulating handle is provided on the pluggable conductive copper busbar (124).

9. The series battery pack according to claim 1, characterized in that, The first copper busbar (121), the second copper busbar (122), and the third copper busbar (123) are fixed to the device mounting plate (120) by bolts.

10. An energy storage cabinet, characterized in that, Includes the series battery pack as described in any one of claims 1 to 9.

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