Battery device and electric appliance

Abstract

This application discloses a battery device and an electrical appliance. The battery device includes a battery pack, a first component, and a restraint mechanism. The battery pack includes at least two battery cells arranged along a first direction. Along the first direction, first components are located on both sides of the battery pack, configured to limit the battery pack in the first direction. The restraint mechanism includes a second component and an adjustment assembly. The second component is connected to the first components located on both sides of the battery pack. The second component is a flexible structure and is a rope. The adjustment assembly includes a third component. At least one first component has a movable third component, which can be fixed relative to the first component. The third component also has a transmission engagement with the second component to adjust the tension of the second component. The technical solution of this application can improve the reliability of the battery device.

Description

Technical Field

[0001] This application relates to the field of battery technology, and in particular to a battery device and an electrical appliance. Background Technology

[0002] Energy conservation and emission reduction are key to the sustainable development of the automotive industry, and electric vehicles, due to their energy-saving and environmentally friendly advantages, have become an important component of this sustainable development. For electric vehicles, battery technology is a crucial factor in their development.

[0003] Improving the reliability of battery devices is a pressing issue in battery technology. Utility Model Content

[0004] The main objective of this application is to provide a battery device and an electrical appliance designed to improve the reliability of the battery device.

[0005] To achieve the above objectives, the battery device proposed in this application includes:

[0006] The battery pack includes at least two battery cells arranged along a first direction;

[0007] A first component, along a first direction, is provided on both sides of the battery pack, the first component being configured to limit the battery pack in the first direction; and

[0008] The restraint mechanism includes a second component and an adjustment assembly. The second component is connected to a first component located on both sides of the battery pack. The second component is a flexible structure and is a rope.

[0009] The adjustment assembly includes a third component, and at least one of the first components is provided with a movable third component, which can be limited and fixed relative to the first component;

[0010] The third component also engages with the second component in a transmission configuration to adjust the tension of the second component.

[0011] The battery device of this application features a flexible structure for the second component that holds and limits the first components on both sides of the battery pack. This allows the second component to bend and deform to tighten or loosen. Simultaneously, an adjustment assembly including a movable third component is provided, and this third component is also configured for transmission with the second component. This allows the movement of the third component to drive the second component, thereby adjusting the tension of the second component to a suitable range. This reduces the possibility of fatigue failure due to excessive tension on the second component, and also reduces the possibility of the second component being too loose, which could compromise the holding and limiting effect on the first components on both sides of the battery pack. In other words, it improves the reliability of the second component, enabling it to stably hold and limit the first components on both sides of the battery pack over a long period. This, in turn, helps to suppress the expansion of individual battery cells in the battery pack, reducing the possibility of displacement due to expansion affecting usability and improving the reliability of the battery device. In addition, by setting the second component as a rope, the distance from the center of the second component can be made more uniform in the circumferential direction, so as to reduce the area of ​​the cross section of the second component perpendicular to its extension direction, thereby reducing the contact area with the battery cell and reducing the possibility that the second component becomes a local heat conduction path of the battery cell, resulting in uneven temperature distribution of the battery cell.

[0012] In some embodiments, a third member is rotatably disposed on the first member and connected to the second member to be configured to wind up and release the second member.

[0013] Therefore, the third component can move in a fixed position while adjusting the tension of the second component, so that there is no need to set up space on the first component for the third component to move and avoid, thereby improving the convenience of the installation and arrangement of the third component within the limited volume of the first component.

[0014] In some embodiments, the adjusting assembly further includes a first fastener connected to the first member;

[0015] Along the rotation axis of the third component, the first fastener cooperates with the first component to clamp both sides of the third component, so that the third component is limited and fixed relative to the first component.

[0016] This allows the clamping and limiting of the third component and the winding of the second component to be performed on the end face and side circumferential surface of the third component, respectively, thus making it less likely for the two to interfere with each other, and making full use of the different surfaces of the third component in order to reduce the volume of the third component.

[0017] In some embodiments, the third component is provided with a first through hole, which passes through both sides of the third component in the direction of its rotation axis.

[0018] The first fastener includes a first column section and a first limiting part. The first column section is connected to the first component and passes through the first through hole so that the third component can be rotatably sleeved on the first column section.

[0019] The first limiting part is connected to the first column section and cooperates with the first component to clamp the third component.

[0020] Therefore, the first column segment can be directly used as the pivot of the third component, so that the first fastener can take into account both the rotational installation and clamping and limiting function of the third component, thereby realizing the use of a structure with at least two functions, so as to simplify the structural design of the adjustment component.

[0021] In some embodiments, the first component is provided with a first threaded hole, and the first cylindrical section is threadedly connected to the first threaded hole;

[0022] Alternatively, the first limiting part is provided with a second threaded hole, and the first cylindrical section is threadedly connected to the second threaded hole.

[0023] Therefore, the third component can be fixed and unlocked by simply tightening or loosening it, which improves the convenience of fixing and unlocking the third component.

[0024] In some embodiments, along the rotation axis of the third member, the third member includes a member body and an auxiliary part, and the second member is connected to the member body;

[0025] The auxiliary part is connected to the main body of the component. On the projection plane perpendicular to the rotation axis of the third component, the projection of the auxiliary part is non-circular.

[0026] Therefore, when it is necessary to rotate the third component to adjust the tension of the second component, it is convenient to apply a force to the auxiliary part to drive the third component to rotate.

[0027] In some embodiments, the third member has a protruding structure on its side peripheral surface, and the second member is mounted on the protruding structure.

[0028] Therefore, this protruding structure facilitates the provision of a mounting position for connecting the second component. Simultaneously, it ensures that the installation of the second component does not affect the strength of the third component.

[0029] In some embodiments, the protrusion structure is provided with a mounting hole, and the second component is mounted in the mounting hole.

[0030] Therefore, the relatively simple structure of the mounting hole facilitates the simplification of the protruding structure's design and improves the ease of installing the second component onto the third component. Simultaneously, the mounting hole increases the contact area with the second component, thereby enhancing the limiting effect on the second component and improving the stability of the connection between the second component and the third component.

[0031] In some embodiments, the second component includes a main body segment and a through segment, the main body segment being located outside the mounting hole;

[0032] The through section passes through the mounting hole. One end of the through section is connected to the main body section, and the other end is provided with a stop part, which is located outside the mounting hole.

[0033] Therefore, after the second component passes through the mounting hole, it can be installed and connected to the third component by the stop and the protruding structure. The installation process is relatively simple, which improves the convenience of installing and connecting the second component to the third component. At the same time, it can further simplify the structure of the mounting hole, thereby improving the convenience of manufacturing the third component.

[0034] In some embodiments, the side peripheral surface of the third member is provided with an anti-slip structure, and the second member is arranged around the anti-slip structure.

[0035] Therefore, when the second component is wound around the side surface of the third component, the anti-slip structure can increase the friction between the second component and the third component, thereby improving the stability of the second component when it is wound around the third component, and thus improving the stability of the tension of the second component.

[0036] In some embodiments, the first member has a first wall surface, and the third member is rotatably disposed on the first wall surface;

[0037] The adjustment assembly also includes a fourth component, which is disposed between the third component and the first wall surface.

[0038] Therefore, the fourth component can isolate the third component from the first component, reducing the possibility of the first component being worn down by the rotation of the third component, and allowing the problem to be solved by replacing the fourth component.

[0039] In some embodiments, the adjusting component includes a first column segment connected to a first wall surface, and a third component rotatably sleeved on the first column segment;

[0040] The fourth component is provided with a second through hole, and the first column section passes through the second through hole.

[0041] This allows the third component to be clamped and fixed using the first fastener, thus simplifying the structural setup of the adjustment assembly.

[0042] In some embodiments, the adjustment assembly further includes a fourth component and a fifth component, the fourth component and the fifth component being arranged at intervals along the rotation axis direction of the third component;

[0043] The second component, which is mounted around the third component, is located between the fourth and fifth components.

[0044] Therefore, the fourth and fifth components can limit the second component that is wound around the third component, reducing the possibility of the second component detaching from the third component along the rotation axis of the third component, thereby improving the stability of the second component wound around the third component and thus improving the stability of the tension of the second component.

[0045] In some embodiments, the first member has a first wall surface, the third member is rotatably disposed on the first wall surface, and the fourth member is disposed closer to the first wall surface than the fifth member;

[0046] The fifth component is provided with a third through hole, and part of the third component is located between the fourth and fifth components and is partially inserted through the third through hole.

[0047] Therefore, the third through hole allows the end of the third component away from the first wall to be exposed so that the end face of the third component in the direction of rotation axis can be clamped and limited by the first fastener.

[0048] In some embodiments, the side peripheral surface of the third component is provided with a protrusion structure, the protrusion structure is located between the fourth component and the fifth component, and the second component is mounted on the protrusion structure;

[0049] The fifth component is also provided with a clearance notch, which penetrates the inner and outer sides of the third through hole, as well as the two sides of the fifth component in the direction of the rotation axis of the third component.

[0050] Therefore, when the third component is installed through the fourth and fifth components, the protruding structure on the side circumferential surface of the third component can pass through the allowable notch so that it can be installed between the fourth and fifth components.

[0051] In some embodiments, in a direction parallel to the rotation axis of the third member and from the fourth member to the fifth member, the third member includes a member body and an auxiliary portion;

[0052] The main body of the component is located between the fourth and fifth components and partially passes through the third through hole; the second component is connected to the main body of the component.

[0053] The auxiliary part is connected to the main body of the component and is located on the side of the fifth component away from the fourth component.

[0054] Therefore, the auxiliary part in the second component is protruded on the side of the fifth component facing away from the fourth component, so that it can be located on the outer side of the third through hole in the direction of the rotation axis of the third component, thereby facilitating the application of force to drive the third component to rotate.

[0055] In some embodiments, the adjustment assembly further includes a sixth component connected to the fourth component and the fifth component.

[0056] Therefore, the sixth component can connect the fourth and fifth components, allowing them to form a unified whole, thus improving the overall strength of this part. Furthermore, this part can be installed in one go, improving ease of installation.

[0057] In some embodiments, the sixth member is disposed between the fourth member and the fifth member, and the sixth member has a first hole;

[0058] The fourth and fifth components are respectively provided with a second hole and a third hole that are connected to the first hole. The first hole, the second hole and the third hole are connected to form a fourth through hole.

[0059] The adjustment assembly also includes a second fastener, which passes through the fourth through hole and is connected to the first component. The second fastener cooperates with the first component to clamp the fourth component, the fifth component, and the sixth component.

[0060] Therefore, by inserting the second fastener, the fourth, fifth, and sixth components can be installed and connected to the first component, thereby improving the convenience of installing these components on the first component.

[0061] In some embodiments, the adjustment assembly further includes a sixth member disposed on the first member and located on one side of the third member in the radial direction;

[0062] The sixth component and the third component are arranged in the first direction, and the second component passes around the sixth component.

[0063] This allows the second component to bypass the sixth component, and the portion of the second component located between the two first components on both sides of the battery pack will not be affected by the winding on the side circumferential surface of the third component. It can maintain its extension along the first direction and be in a preset position so as to stably play a pulling and limiting role at the required position.

[0064] In some embodiments, the second member is disposed on one side of the battery pack in a second direction, the second direction intersecting the first direction, and the rotation axis of the third member is parallel to the second direction.

[0065] This allows the third component to be better exposed on the side of the battery pack facing the second component, so that it can be rotated to adjust the tension of the second component.

[0066] In some embodiments, an insulating element is sleeved on the outer side of the second component;

[0067] And / or, the first component is provided with a first groove, and the adjustment component is provided in the first groove.

[0068] Therefore, the insulating component serves two purposes: firstly, it provides insulation and protection between the second component and the battery cell, reducing the possibility of short circuits; secondly, it encloses and limits the second component, improving its structural stability. An adjustment assembly can be installed in the first groove, allowing the second component to press and limit the battery cell along the second direction.

[0069] In some embodiments, the first components located on both sides of the battery pack are defined as component one and component two, and the restraint mechanism further includes a locking assembly;

[0070] An adjustment component is located in component one, and a locking component is located in component two. One end of the second component is connected to the third component in the adjustment component, and the other end is connected to the locking component.

[0071] Therefore, the second component only needs to cross once between component one and component two, so as to shorten the extension length of the second component, reduce manufacturing costs, and simplify the structure of the restraint mechanism.

[0072] In some embodiments, the adjustment component and the locking component are disposed on component one, and component two is provided with a guide;

[0073] One end of the second component is connected to the third component in the adjustment assembly, and the other end is connected to the locking assembly. The second component also passes around the guide.

[0074] Therefore, the second component can cross the first and second components twice, which helps to improve the holding and limiting effect on the two first components located on both sides of the battery pack.

[0075] In some embodiments, the locking assembly includes a seventh member having a clamping space, and a second member clamping in the clamping space.

[0076] Therefore, by using the clamping space of the seventh component to clamp and limit the second component, one end of the second component can be subjected to clamping force, which helps to improve the stability of the second component at that end.

[0077] In some embodiments, the seventh component cooperates with the first component to clamp the second component.

[0078] Therefore, the first component can be used directly to simplify the structural design of the seventh component.

[0079] In some embodiments, when the seventh component is provided with a clamping space, the seventh component includes two separate parts, and a clamping space is formed between the two separate parts;

[0080] The locking assembly also includes a third fastener, which passes through the two separate parts and is connected to the first component to cooperate with the first component to clamp the two separate parts.

[0081] Therefore, by using separate components to isolate the second component from the first component, the second component will not come into contact with the first component, thereby reducing the possibility of wear on the first component, and the problem can be solved by replacing the separate components.

[0082] In some embodiments, the first component is provided with a second groove, and the locking component is disposed in the second groove.

[0083] Therefore, a accommodating adjustment component can be installed in the second tank so that the second component can exert pressure and limit the battery cell along the second direction.

[0084] In some embodiments, the battery device further includes a housing, a battery pack and a restraint mechanism disposed within the housing; the housing has a first housing wall opposite to the battery pack along a first direction; and at least one of the two first members located on both sides of the battery pack is formed by the first housing wall.

[0085] Therefore, by utilizing the first wall of the housing to form the first component, the battery housing can simultaneously accommodate individual battery cells and suppress expansion, achieving at least two functions within a single structure, thus simplifying the structural design. Simultaneously, it allows for better utilization of the space within the housing, thereby increasing the battery energy density of the battery device.

[0086] In some embodiments, the battery device further includes a beam structure disposed within the housing and arranged along a first direction with the battery pack; at least one first component is formed by the beam structure.

[0087] This allows the beam structure to form a protective barrier for the battery pack within the enclosure, thereby improving the protection of individual battery cells. Furthermore, when multiple beam structures are used, the enclosure can be divided into different zones to house the battery packs, shortening the length of each battery pack in the first direction and preventing excessive expansion forces, thus improving the ease of suppression.

[0088] In some embodiments, the battery device further includes a housing, a battery pack, and a restraint mechanism disposed within the housing;

[0089] The battery pack has end plates on both sides in the first direction, and the end plates form the first component.

[0090] Therefore, at least two battery cells in the battery pack can be clamped between two end plates, and the two end plates can be connected on both sides in the third direction by side plates or cable ties, so that the battery pack can be formed into a module, improving the convenience of its installation and subsequent maintenance in the box.

[0091] On the other hand, the electrical equipment proposed in this application includes the battery device in any of the above embodiments. Attached Figure Description

[0092] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0093] Figure 1 This is a schematic diagram of the structure of one embodiment of the vehicle of this application;

[0094] Figure 2 This is an exploded structural diagram of an embodiment of the battery device of this application;

[0095] Figure 3 This is an exploded structural diagram of one embodiment of a battery cell.

[0096] Figure 4 This is a schematic diagram of the battery device according to an embodiment of the present application, with the second part of the casing removed;

[0097] Figure 5 for Figure 4 Another perspective view of the battery device;

[0098] Figure 6 for Figure 5 A magnified view of a section at point A in the middle;

[0099] Figure 7 for Figure 5 A magnified view of a section at point B in the middle;

[0100] Figure 8 This is a schematic diagram of the structure of an embodiment of the adjustment component of the battery device of this application;

[0101] Figure 9 for Figure 8 Exploded view of the regulating component;

[0102] Figure 10 This is a schematic diagram of the structure of a locking assembly of the battery device according to an embodiment of this application;

[0103] Figure 11 for Figure 10 A partial structural diagram;

[0104] Figure 12 This is a schematic diagram of another embodiment of the battery device of this application.

[0105] Explanation of icon numbers:

[0106] 100. Battery assembly; 10. Housing; 11. First part; 111. First housing wall; 12. Second part; 20A. Battery pack; 20. Battery cell; 21. End cap; 21a. Electrode terminal; 22. Housing; 23. Electrode assembly; 23a. Electrode tab; 30. First component; 31. First wall surface; 33. First tank; 35. Second tank; 37. Component one; 39. Component two; 391. Guide; 50. Restraining mechanism; 51. Second component; 511. Main body section; 512. Through section; 513. Stop; 514. Insulating component; 53. Adjustment assembly; 531. Third component; 532. First through hole; 533. Component body; 534. Auxiliary part; 535. Protruding structure; 536. Mounting hole; 537. Anti- Sliding structure; 538, First fastener; 539, First column section; 540, First limiting part; 541, Fourth component; 542, Second through hole; 543, Receiving groove; 544, Fifth component; 545, Third through hole; 546, Excess notch; 547, Sixth component; 548, Fourth through hole; 549, Second fastener; 550, Second column section; 551, Second limiting part; 57, Locking assembly; 571, Seventh component; 572, Clamping space; 573, Separate component; 574, Limiting groove; 575, Third fastener; 576, Third column section; 577, Third limiting part; 70, Beam structure; 200, Controller; 300, Motor; 1000, Vehicle; X, First direction; Z, Second direction; Y, Third direction.

[0107] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0108] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0109] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0110] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0111] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the word "and / or" throughout the text means including three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0112] Battery devices, which are devices used to store electrical energy, are widely used not only in energy storage power systems such as hydropower, thermal power, wind power and solar power plants, but also in electric vehicles such as electric bicycles, electric motorcycles, electric cars, and rail trains.

[0113] The battery device may include a housing and individual battery cells housed within the housing. The housing provides space to house and protect the battery cells. Each battery cell is the smallest unit of the battery and typically includes a casing and an electrode assembly within the casing. The electrode assembly is the component in the battery cell where the electrochemical reaction actually occurs, and may include a positive electrode, a negative electrode, and a separator between them, formed by winding or stacking the positive electrode, negative electrode, and separator. The battery cell may be a secondary or primary battery; it may also be a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery, but is not limited to these. Furthermore, the battery cell may be cylindrical, flat, cuboid, or other shapes. Multiple battery cells may be housed within the housing, connected in series, in parallel, or in a hybrid configuration including both series and parallel connections. Additionally, at least two battery cells may be stacked to form a battery pack.

[0114] Furthermore, since individual battery cells expand during operation, battery devices in related technologies typically incorporate end plates or expansion beams along the stacking direction of the battery cells in the battery pack to limit their movement. Alternatively, the battery pack can be directly restrained by the walls of the housing. To enhance the stability of the end plates, expansion beams, or housing walls in limiting the battery pack, pressure strips are further installed to tighten and restrain the end plates, expansion beams, or housing walls on both sides along the stacking direction of the battery cells.

[0115] However, the clamping strips in related technologies are usually stamped from metal sheets, typically made of stainless steel, aluminum alloy, or titanium alloy, to give them high strength. In this case, with the clamping strip being a rigid structure, if the holes on the clamping strip for installation deviate from the holes on the end plates, expansion beams, or housing walls, or if there are slight undulations on the top side of the battery cell, the clamping strip may become too tight or too loose in its constraint on the end plates, expansion beams, or housing walls of the battery pack. This results in low stability of the clamping strip and affects the reliability of the battery assembly. For example, if the constraint is too tight, the clamping strip will experience excessive stress, making it prone to fatigue failure; if the constraint is too loose, it will affect the binding and limiting effect on the end plates, expansion beams, or housing walls.

[0116] Therefore, based on the above considerations, in order to solve the problem that the pressure bar in the battery device of the related technology is prone to being too tight or too loose due to its rigid structure, which affects the stability of the pressure bar and thus the reliability of the battery device, this application proposes a novel battery device. This novel battery device innovatively sets the pressure bar as a flexible structure and incorporates an adjustment component to regulate the tension of the pressure bar, so that it can operate stably within a suitable range and improve the reliability of the battery device.

[0117] Furthermore, it should be noted that the battery device proposed in this application can be applied to electrical devices to provide power to them. These electrical devices can be, but are not limited to, mobile phones, tablets, laptops, electric toys, power tools, electric vehicles, electric cars, rail trains, ships, and spacecraft. Further, electric toys can include stationary or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc., while spacecraft can include airplanes, rockets, space shuttles, and spacecraft, etc.

[0118] For ease of explanation, the following embodiments will use a vehicle as an example of an electrical device according to an embodiment of this application.

[0119] Please refer to Figure 1 , Figure 1 This is a schematic diagram of the structure of a vehicle 1000 provided in some embodiments of this application. The vehicle 1000 can be a gasoline-powered vehicle, a natural gas-powered vehicle, or a new energy vehicle. New energy vehicles can be pure electric vehicles, hybrid electric vehicles, or range-extended electric vehicles, etc. A battery device 100 is provided inside the vehicle 1000, and the battery device 100 can be located at the bottom, front, or rear of the vehicle 1000. The battery device 100 can be used to power the vehicle 1000; for example, the battery device 100 can serve as the operating power source for the vehicle 1000. The vehicle 1000 may also include a controller 200 and a motor 300. The controller 200 is used to control the battery device 100 to supply power to the motor 300, for example, to meet the power needs of the vehicle 1000 during starting, navigation, and driving.

[0120] In some embodiments of this application, the battery device 100 can not only serve as the operating power source for the vehicle 1000, but also as the driving power source for the vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000.

[0121] Please refer to Figure 2 , Figure 2 This is an exploded structural diagram of a battery device 100 provided in some embodiments of this application. The battery device 100 includes a housing 10 and battery cells 20, with the battery cells 20 housed within the housing 10.

[0122] The housing 10 provides a space for housing the battery cell 20. To improve ease of manufacturing, the housing 10 may include a first part 11 and a second part 12, which overlap each other to form a space for housing the battery cell 20. The first part 11 may be a hollow structure with an opening on one side, and the second part 12 may be a plate-like structure, covering the opening side of the first part 11. Alternatively, the second part 12 may also be a hollow structure with an opening on one side, covering the opening side of the first part 11. Furthermore, the housing 10 formed by the first part 11 and the second part 12 may be a cuboid, a cube, or other shapes. In some embodiments, the housing 10 may also include three or more parts, which together form a space for housing the battery cell 20.

[0123] A single battery cell 20 is the smallest unit constituting the battery device 100. There can be multiple battery cells 20. These cells can be connected in series, in parallel, or in a mixed configuration; a mixed configuration means that multiple battery cells 20 can be connected in both series and parallel. Furthermore, at least two battery cells 20 can be arranged along a first direction X to form a battery pack 20A. The battery device 100 may consist of only one battery pack 20A, or it may consist of at least two battery packs 20A arranged side-by-side. In the normal installation and use state of the battery device 100, the first direction X can be a horizontal direction. The first part 11 and the second part 12 of the housing 10 described above can be arranged along a second direction Z, which intersects with the first direction X and can be vertical. Of course, in other embodiments, the first direction X and the second direction Z can also be other directions; this application does not limit the specific types of the first direction X and the second direction Z.

[0124] In addition, the battery device 100 may include other structures, such as busbars, for electrical connection between multiple battery cells 20. Furthermore, each battery cell 20 may be a secondary or primary battery; it may also be a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery, but is not limited thereto. The battery cell 20 may be cylindrical, flat, cuboid, or other shapes.

[0125] Please refer to Figure 3 , Figure 3 This is an exploded structural diagram of a battery cell 20 provided in some embodiments of this application. The battery cell 20 includes an end cap 21, a housing 22, an electrode assembly 23, and other functional components.

[0126] End cap 21 refers to a component that covers the opening of housing 22 to isolate the internal environment of battery cell 20 from the external environment. The shape of end cap 21 can be adapted to the shape of housing 22 to fit it. Optionally, end cap 21 can be made of a material with high hardness and strength, such as aluminum alloy. This makes end cap 21 less prone to deformation under pressure and impact, allowing battery cell 20 to have higher structural strength. Functional components such as electrode terminals 21a can be provided on end cap 21. Electrode terminals 21a can be used for electrical connection with electrode assembly 23 to output or input electrical energy to battery cell 20. In some embodiments, end cap 21 can also be provided with a pressure relief mechanism for releasing internal pressure when the internal pressure or temperature of battery cell 20 reaches a threshold. The material of end cap 21 can also be various, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc., and this application embodiment does not impose any special limitations on this. In some embodiments, an insulating structure may also be provided on the inner side of the end cap 21. The insulating structure can be used to isolate the electrical connection components within the housing 22 from the end cap 21 to reduce the risk of short circuits. For example, the insulating structure may be made of plastic, rubber, etc.

[0127] The housing 22 is a component used to cooperate with the end cap 21 to form the internal environment of the battery cell 20. This internal environment can accommodate the electrode assembly 23, electrolyte, and other components. The housing 22 and the end cap 21 can be independent components. An opening can be provided on the housing 22, and the end cap 21 can be used to close the opening to form the internal environment of the battery cell 20. Alternatively, the end cap 21 and the housing 22 can be integrated. Specifically, the end cap 21 and the housing 22 can form a common connecting surface before other components are inserted into the housing. When it is necessary to encapsulate the interior of the housing 22, the end cap 21 closes the housing 22. The housing 22 can be of various shapes and sizes, such as cuboid, cylindrical, hexagonal prism, etc. Specifically, the shape of the housing 22 can be determined according to the specific shape and size of the electrode assembly 23. The material of the housing 22 can be various, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc. This application embodiment does not impose any special limitations on this.

[0128] Electrode assembly 23 is the component in the battery cell 20 where the electrochemical reaction occurs. The casing 22 may contain one or more electrode assemblies 23. The electrode assembly 23 is mainly formed by winding or stacking positive and negative electrode sheets, and typically a separator is provided between the positive and negative electrode sheets. The portions of the positive and negative electrode sheets containing active material constitute the main body of the electrode assembly 23, while the portions of the positive and negative electrode sheets without active material each constitute a tab 23a. The positive and negative tabs may be located together at one end of the main body or separately at both ends of the main body. During the charging and discharging process of the battery device 100, the positive and negative active materials react with the electrolyte, and the tabs 23a connect to the electrode terminals 21a to form a current loop.

[0129] Please refer to Figure 3 In one embodiment of this application, the battery cell 20 may have two large surfaces in the first direction X and two small surfaces in the third direction Y. The first direction X, the second direction Z, and the third direction Y intersect each other. The two large surfaces and the two small surfaces together constitute the side peripheral surface of the battery cell 20, that is, the side surface surrounding its opening in the housing 22. In this case, since the area of ​​the large surfaces is larger than the area of ​​the small surfaces, when the battery cell 20 is working, the large surfaces are mainly subjected to the expansion force of the electrode assembly 23. Therefore, it can be said that the direction of the expansion force of the battery cell 20 intersects the large surfaces, that is, the battery cell 20 expands along the first direction X.

[0130] Please refer to Figure 4 In one embodiment of this application, in order to suppress the expansion of the battery cell 20, the battery device 100 may further include a first component 30, which is provided on both sides of the battery pack 20A along the first direction X.

[0131] The first component 30 can be used to limit the battery pack 20A in the first direction X. The first component 30 and the battery pack 20A can be in contact, allowing the first component 30 to directly abut against the battery pack 20A, specifically against the battery cells 20 located at their ends in the first direction X, thus limiting the battery pack 20A and resisting the expansion of the battery cells 20. Alternatively, the first component 30 and the battery pack 20A can be spaced apart, with a buffer pad or other object between them, ensuring that the first component 30 can stop and limit the battery cells 20 in the first direction. Furthermore, the first component 30 can be directly formed from the housing 10 as described below, or it can be formed from a beam structure 70 or end plate additionally provided within the housing 10. This application does not limit the specific type of the first component 30. In addition, when the battery device 100 includes one battery pack 20A, the number of first components 30 can be two, distributed on both sides of the battery pack 20A along the first direction X. When the battery device 100 includes at least two battery packs 20A arranged side by side along a third direction Y, the number of first members 30 can be two, so that at least two battery packs 20A can share two first members 30 for limiting. Alternatively, each battery pack 20A may have first members 30 on both sides in the first direction X, so that each battery pack 20A uses two first members 30 for limiting.

[0132] Please refer to the reference. Figures 4 to 7 In one embodiment of this application, the battery device 100 further includes a restraint mechanism 50 disposed within the housing 10; the restraint mechanism 50 includes a second component 51 and an adjustment assembly 53, the second component 51 is connected to a first component 30 located on both sides of the battery pack 20A, and the second component 51 is a flexible structure; the adjustment assembly 53 includes a third component 531, the third component 531 is movably disposed on the first component 30 and can be limited and fixed relative to the first component 30; the third component 531 also has a transmission cooperation with the second component 51 to adjust the tension of the second component 51.

[0133] The restraint mechanism 50 can be used to restrain and limit the first components 30 located on both sides of the battery pack 20A, reducing the possibility of failure under the expansion force of the battery cells 20. In addition, the restraint mechanism 50 can also provide limiting constraints for the battery pack 20A, reducing the risk of displacement or deformation of the battery cells 20 due to charge-discharge cycles, temperature changes, or external vibrations, thereby improving the structural stability and reliability of the battery device 100. For example, the restraint mechanism 50 can be located on one side of the battery pack 20A in the second direction Z, thus restricting the movement of the battery cells 20 in the second direction Z. When the second direction Z is vertical as described above, the restraint mechanism 50 can be located above the battery pack 20A. Furthermore, when there is only one battery pack 20A, there can be one restraint mechanism 50 above the battery pack 20A, or there can be two or more restraint mechanisms 50. When there are two or more battery packs 20A, one or at least two restraining mechanisms 50 may be provided above all battery packs 20A, or one or at least two restraining mechanisms 50 may be provided above only some battery packs 20A.

[0134] The second component 51 can span between the two first components 30 located on both sides of the battery pack 20A to connect the two first components 30 on both sides of the battery pack 20A, thereby pulling and limiting the two first components 30 on both sides of the battery pack 20A. The connection between the second component 51 and the two first components 30 on both sides of the battery pack 20A can be direct or indirect. For example, the two first components 30 can be defined as component one 37 and component two 39. In this case, one end of the second component 51 can be indirectly connected to component one 37 through the adjusting component 53; the other end can be indirectly connected to component two 39 through the locking component 57 described below. Of course, the second component 51 can also be directly connected to component two 39 by bonding or welding. Alternatively, both ends of the second component 51 can be indirectly connected to component one 37 and component two 39 respectively through two adjusting components 53. Alternatively, both ends of the second component 51 can be connected to the same first component 30, for example, component one 37, as... Figure 12As shown, at this time, at least one end of the second component 51 can be indirectly connected to the first component 37 via the adjusting component 53; the other end can be indirectly connected to the first component 37 via the locking component 57, or directly connected to the first component 37 via bonding or welding. Simultaneously, the second component 51 also bypasses the guide member 391 on the second component 39, through which it is indirectly connected to the second component 51. Alternatively, the adjusting component 53 can be used only to adjust the second component 51, and both ends of the second component 51 can be directly or indirectly connected to the two first components 30 via any connection method. For example, the second component 51 may include a transverse portion spanning between the first component 37 and the second component 39, and a bent portion on the first component 37 at an angle to the transverse portion. The adjusting component 53 can be configured corresponding to the bent portion to adjust the tension of the second component 51 by driving the bent portion during sliding adjustment. Therefore, this application does not limit the connection method between the second component 51 and the two first components 30 located on both sides of the battery pack 20A. Furthermore, the two ends of the second component 51 can be connected to the two first components 30 respectively, or they can be connected to the same first component 30 and pass around the guide 391 on the other first component 30.

[0135] Furthermore, the second component 51 is a flexible structure, meaning it is flexible enough to bend and tighten or loosen under external force, allowing for subsequent tension adjustment. This can be achieved by optimizing the structural design of the second component 51, making it a rope structure, thus creating a flexible structure. For example, the second component 51 could be changed from a long metal plate to a metal rope formed by twisting metal wires; or it could be a nylon rope formed by twisting nylon filaments. Alternatively, the material of the second component 51 can be optimized, directly using a flexible material to fabricate it, thus forming a flexible structure. For example, the material of the first component 30 could be set to flexible materials such as thermoplastic polyurethane or rubber. In this case, when the material of the second component 51 is set to a flexible material, it can be a rope structure or a strip structure; this application does not limit the structural type of the second component 51.

[0136] The adjusting component 53, via the third component 531, can be used to adjust the tension of the second component 51, or in other words, to adjust the tightness of the second component 51. The third component 531 is movably disposed on the first component 30 and can be fixed relative to the first component 30, meaning that the third component 531 can rotate or slide, and after rotating or sliding to the desired position, it can remain fixed. Therefore, the third component 531 can be rotatably disposed on the first component 30, or it can be slidably disposed on the first component 30. The fixing of the third component 531 after movement adjustment can be achieved by using an additional first fastener 538, as described below. Alternatively, protrusions and recesses can be provided on both the third component 531 and the first component 30 for limiting engagement. For example, the third component 531 has a protrusion, and the first component 30 has at least two recesses along the movement path of the third component 531. The protrusion engages with the corresponding recess, thus fixing the third component 531 relative to the first component 30. Furthermore, the transmission cooperation between the third component 531 and the second component 51 refers to the fact that when the third component 531 rotates or slides, it can drive the second component 51 to move, thereby tightening or loosening the second component 51 and adjusting its tension. This transmission cooperation between the third component 531 and the second component 51 includes both a connection cooperation and a contact cooperation. For example, when the third component 531 is rotatably mounted on the first component 30, the second component 51 can be connected to the third component 531 so that the third component 531 drives the second component 51. When the third component 531 is slidably mounted on the first component 30, the second component 51 can be connected to the third component 531; alternatively, it can be in contact cooperation with the third component 531, and the sliding direction of the third component 531 can intersect with the contact interface between the two components. In addition, the third component 531 can be a cylindrical structure or a block structure, etc. This application does not limit the structural type of the third component 531.

[0137] The battery device 100 of this application features a flexible structure for the second component 51 that holds and limits the first components 30 on both sides of the battery pack 20A, allowing it to bend and deform. Simultaneously, an adjustment assembly 53 is provided, including a movable third component 531, which is in a transmission connection with the second component 51. This allows the movement of the third component 531 to drive the second component 51, thereby adjusting the tension of the second component 51 to a suitable range. This reduces the possibility of fatigue failure due to excessive tension on the second component 51, and also reduces the possibility of the second component 51 being too loose, which could affect the holding and limiting effect on the first components 30 on both sides of the battery pack 20A. In other words, the reliability of the second component 51 is improved, enabling it to stably hold and limit the first components 30 on both sides of the battery pack 20A for a long period of time. This helps the second component 51 suppress the expansion of the battery cells 20 in the battery pack 20A, reducing the possibility of displacement of the battery cells 20 due to expansion and affecting their use, thus improving the reliability of the battery device 100. In addition, by adjusting the tension of the second component 51 by the adjustment component 53, the second component 51 can be easily adapted to battery packs 20A with different sizes in the first direction X, improving the versatility of the second component 51 and thus facilitating assembly and improving the manufacturing efficiency of the battery device 100. Furthermore, with the second component 51 being a flexible structure, it can adapt to some undulations on the surface of the battery cells 20 and deform accordingly to adjust the pressure distribution. Therefore, when the second component 51 presses and limits the battery cells 20 on one side in the second direction Z, it can reduce the possibility of excessive local pressure on the battery cells 20, which could lead to pressure concentration and damage to the battery cells 20, further improving the reliability of the battery device 100.

[0138] Please refer to the reference. Figure 5 , Figure 6 , Figure 8 and Figure 9 In one embodiment of this application, the third member 531 is rotatably disposed on the first member 30 and connected to the second member 51 to be configured to wind up and release the second member 51.

[0139] The rotational engagement between the third component 531 and the first component 30 can be achieved by using the first fastener 538 as a pivot, as described below. Alternatively, it can be achieved by using a pivot separately from the first fastener 538.

[0140] In this embodiment, the third component 531 is configured to wind up or release the second component 51 by rotation, so that the third component 531 always moves around the rotation axis during the process of adjusting the tension of the second component 51. In this way, the third component 531 can move in a fixed position, so that there is no need to provide space on the first component 30 for the third component 531 to move around, thereby improving the convenience of installing and arranging the third component 531 within the limited volume of the first component 30.

[0141] Please refer to the reference. Figure 5 , Figure 6 , Figure 8 and Figure 9 In one embodiment of this application, the adjustment component 53 further includes a first fastener 538, which is connected to the first component 30. Along the rotation axis of the third component 531, the first fastener 538 cooperates with the first component 30 to clamp both sides of the third component 531, so that the third component 531 is limited and fixed relative to the first component 30.

[0142] The first fastener 538 may include a first column section 539 and a first limiting part 540, as described below, so that the first column section 539 can be directly formed as the pivot of the third component 531. Alternatively, when the third component 531 has an additional pivot independent of the first fastener 538, the first fastener 538 may be a pressure plate to press and limit the third component 531. In this case, the pressure plate may be rotatable or slidable and equipped with a spring to apply elastic force, driving the pressure plate to rotate or slide to press and limit the third component 531; then, when the elastic force is overcome and the pressure plate is driven, the limitation on the third component 531 can be released. Alternatively, the pressure plate may have one end used to press and limit the third component 531, and the other end fixed to the first component 30 by bolts or screws.

[0143] In this embodiment, by setting the first fastener 538 and the first component 30 to clamp and limit the two sides of the third component 531 in the direction of its rotation axis, the clamping and limiting of the third component 531 and the winding of the second component 51 can be performed on the end face and side peripheral surface of the third component 531, respectively. This makes it less likely for the two to interfere with each other and allows full utilization of the different surfaces of the third component 531, thereby reducing the volume of the third component 531. Moreover, since the first component 30 is directly used to clamp and limit the third component 531, only the first fastener 538 needs to be set, which simplifies the structural setting for limiting and fixing the third component 531 after rotation adjustment. Here, the end face of the third component 531 refers to the surface intersecting the direction of the rotation axis of the third component 531. And the side peripheral surface of the third component 531 refers to the surface surrounding the direction of the rotation axis of the third component 531.

[0144] Additionally, it should be noted that in other embodiments, a portion of the third component 531 can be configured to wind up the second component 51 along its rotation axis, while the other portion can be clamped and limited by two opposing clamping arms. Alternatively, an insertion hole can be provided on the end face or side circumferential surface of the third component 531, and after the third component 531 is rotated and adjusted to its position, an insertion rod can be inserted into the insertion hole to limit the insertion of the third component 531.

[0145] Please refer to the reference. Figure 8 and Figure 9 In one embodiment of this application, the third component 531 is provided with a first through hole 532, which passes through both sides of the third component 531 in the direction of its rotation axis; the first fastener 538 includes a first column section 539 and a first limiting part 540. The first column section 539 is connected to the first component 30 and passes through the first through hole 532, so that the third component 531 can be rotatably sleeved on the first column section 539; the first limiting part 540 is connected to the first column section 539 and cooperates with the first component 30 to clamp the third component 531.

[0146] The first cylindrical segment 539 can be a cylindrical structure to serve as the pivot of the first component 30. The first through hole 532 can serve as a shaft hole for rotatable engagement with the pivot. The first limiting portion 540 can be used to stop and limit the third component 531 on the side away from the first component 30 in the direction of its rotation axis. Specifically, on the projection plane perpendicular to the rotation axis of the third component 531, the projection of the first through hole 532 can be located inside the projection of the first limiting portion 540 to facilitate the stopping and limiting of the third component 531 by the first limiting portion 540. Furthermore, on the projection plane perpendicular to the rotation axis of the third component 531, the projection of the first limiting portion 540 can be a circle, square, rectangle, or regular hexagon, etc., and this application does not limit the shape of the first limiting portion 540. In addition, the first cylindrical segment 539 and the first component 30 can be connected by a thread as described below. In this case, the first limiting portion 540 and the first cylindrical segment 539 can be integrally formed to constitute a screw. The integrally molded structure described in this application is a structure formed through an integral molding process such as integral injection molding or integral die casting. Alternatively, the first limiting part 540 and the first column segment 539 can be threaded together, while the first column segment 539 and the first component 30 can be integrally molded or welded together. Alternatively, the first column segment 539 and the first component 30 can be detachably connected, such as with a snap-fit ​​connection or a magnetic connection, allowing for disassembly to release the restriction on the third component 531; the first limiting part 540 and the first column segment 539 can be connected in any way. Alternatively, the first limiting part 540 and the first column segment 539 can be detachably connected, such as with a snap-fit ​​connection or a magnetic connection; the first column segment 539 and the first component 30 can be connected in any way. Alternatively, the first limiting part 540 can be in the form of an elastic arm or an elastic protrusion, allowing it to elastically press against the third component 531; the first column segment 539 and the first component 30 can be connected in any way. At this point, by overcoming the elastic force of the elastic arm and driving the elastic arm to disengage from the third component 531, the restriction on the third component 531 can be released. Alternatively, the first column segment 539 and the first component 30 can be bonded, welded, or integrally formed, and the first limiting part 540 and the first column segment 539 can also be bonded, welded, or integrally formed. The restriction on the third component 531 can be released directly by overcoming the clamping friction force exerted by the first limiting part 540 on the third component 531, thereby driving the third component 531 to rotate and adjust the tension of the second component 51. It is evident that this application does not limit the connection method between the first column segment 539 and the first component 30, nor the connection method between the first limiting part 540 and the first column segment 539. Furthermore, to improve the stability of the clamping and limiting of the third component 531 by the first fastener 538, a gasket can be provided between the first limiting part 540 and the third component 531.

[0147] In this embodiment, the first fastener 538 is configured to include a first column segment 539 and a first limiting portion 540, so that the first column segment 539 can be directly used as the pivot of the third component 531. This allows the first fastener 538 to simultaneously perform the rotational installation and clamping limiting functions of the third component 531, thereby achieving a structure with at least two functions and simplifying the structural design of the adjustment assembly 53. Simultaneously, the first column segment 539 passes through the first through hole 532 of the third component 531, allowing for a compact distribution of both components. This reduces the volume of the adjustment assembly 53, decreases its space occupation, and improves the ease of installation on the first component 30.

[0148] In one embodiment of this application, the first component 30 is provided with a first threaded hole, and the first cylindrical section 539 is threadedly connected to the first threaded hole.

[0149] The first cylindrical section 539 is threadedly connected to the first threaded hole on the first component 30, such that the first cylindrical section 539 can be a screw, the first limiting part 540 can be a nut, and the first fastener 538 is formed as a screw. Alternatively, the first threaded hole can be formed directly on the first component 30, or it can be formed by a nut disposed within the first component 30.

[0150] In this embodiment, the first fastener 538 is threadedly connected to the first component 30. This allows for easy tightening or loosening of the fastener, enabling the third component 531 to be locked and unlocked accordingly, thus improving the convenience of locking and unlocking the third component 531. Simultaneously, the threaded connection offers reliability, further enhancing the stability of the locking and unlocking of the third component 531, thereby improving the tension stability of the second component 51. Furthermore, when maintenance or replacement of the third component 531 is required, it is convenient to remove it from the first component 30 for maintenance or replacement.

[0151] In one embodiment of this application, the first limiting part 540 is provided with a second threaded hole, and the first cylindrical section 539 is threadedly connected to the second threaded hole. In this case, the first cylindrical section 539 can be a stud, and the first limiting part 540 can be a nut, so that the first limiting part 540 and the first cylindrical section 539 form a threaded connection, which can also achieve the effect of the threaded connection between the first fastener 538 and the first component 30.

[0152] Please refer to the reference. Figure 8 and Figure 9In one embodiment of this application, along the rotation axis of the third component 531, the third component 531 includes a component body 533 and an auxiliary part 534. The second component 51 is connected to the component body 533; the auxiliary part 534 is connected to the component body 533. On the projection plane perpendicular to the rotation axis of the third component 531, the projection of the auxiliary part 534 is non-circular.

[0153] The main body 533 can be used to connect with the second component 51 and to wind or release the second component 51. The projection of the main body 533 in the direction perpendicular to the rotation axis of the third component 531 can be circular to facilitate winding the second component 51. Of course, the projection of the main body 533 can also be square or rectangular; this application does not limit the shape type of the main body 533. An auxiliary portion 534 is disposed at one end of the main body 533 in the direction of its rotation axis. The first component 30 can be defined as having a first wall surface 31, and the third component 531 can be rotatably disposed on the first wall surface 31, that is, the first column segment 539 in the first fastener 538 described above is connected to the first wall surface 31. In this case, the main body 533 can be positioned closer to the first wall surface 31 than the auxiliary portion 534, or vice versa. In other words, when the second direction Z is vertical and the first wall 31 faces upward, the main component 533 can be located below the auxiliary part 534, i.e., closer to the first wall 31; or the main component 533 can be located above the auxiliary part 534, i.e., further away from the first wall 31. Furthermore, the projection of the auxiliary part 534 is non-circular, meaning that the projection of the auxiliary part 534 can be a square, a regular hexagon, or a rectangle, etc., which are not circular shapes. Additionally, the first through hole 532 on the third component 531, as described above, can be partially located on the component and partially on the auxiliary part 534, sufficient to pass through both sides of the third component 531 in the direction of the rotation axis.

[0154] In this embodiment, the third component 531 is configured to include a component body 533 and an auxiliary portion 534, and the projection of the auxiliary portion 534 is non-circular. This allows the third component 531 to be rotated to adjust the tension of the second component 51 when rotation is required, making it convenient to apply force to the auxiliary portion 534 to drive the third component 531 to rotate. For example, it is convenient to use a tool such as a wrench to clamp the non-circular auxiliary portion 534 to drive the third component 531 to rotate.

[0155] Additionally, it should be noted that in some embodiments, the third component 531 may also consist only of the component body 533.

[0156] In one embodiment of this application, the side peripheral surface of the third component 531 is provided with a mounting structure, and the second component 51 is mounted on the mounting structure.

[0157] The mounting structure can be used to mount the second component 51 to establish a connection between the second component 51 and the mounting structure. The mounting structure can be a protruding structure 535 as described below, or it can be a recessed hole or groove structure. Furthermore, when the third component 531 includes a component body 533 and an auxiliary part 534 as described above, the mounting structure can be disposed on the component body 533.

[0158] In this embodiment, a mounting structure for mounting the second component 51 is provided on the side peripheral surface of the third component 531, so that the end of the second component 51 in the extension direction can be mounted on the mounting structure and located on the side peripheral surface of the third component 531, thereby facilitating the accurate winding of the second component 51 onto the side peripheral surface of the third component 531 during the rotation of the third component 531.

[0159] Additionally, it should be noted that in other embodiments, the mounting structure may not be provided on the side peripheral surface of the third component 531, and one end of the second component 51 may be directly bonded or welded to the side peripheral surface of the third component 531.

[0160] Furthermore, on the projection plane perpendicular to the rotation axis of the third component 531, when the projected area of ​​the auxiliary part 534 is smaller than the projected area of ​​the main body 533, the second component 51 can also be connected to the wall surface of the main body 533 where the auxiliary part 534 is provided, and guided by a guide post to the side surface surrounding the main body 533. Alternatively, when the auxiliary part 534 clamps the third component 531 using two opposing clamping arms as described above to limit and fix it, the second component 51 can also be connected to the side of the auxiliary part 534 facing away from the main body 533, or the end face of the second component 51, and guided by a guide post to the side surface surrounding the main body 533.

[0161] Please refer to the reference. Figure 8 and Figure 9 In one embodiment of this application, the mounting structure is a protruding structure 535.

[0162] The protruding structure 535, that is, the structure protruding on the side surface of the second member 51, can be a protruding column, a protrusion, a hanging ring, or two opposing clamping plates. This application does not limit the type of the protruding structure 535.

[0163] In this embodiment, the mounting structure is configured as a protrusion 535 extending from the side surface of the second component 51, which facilitates the provision of a mounting position for connecting the second component 51. Simultaneously, it ensures that the connection of the second component 51 does not affect the strength of the third component 531. Furthermore, when the first fastener 538 is provided as described above, passing through the first through hole 532 of the third component 531, the protrusion 535 extends from the side surface of the second component 51, i.e., outside the first through hole 532. This allows the installation of the second component 51 on the third component 531 and the installation of the first fastener 538 on the third component 531 to be distributed at different positions on the third component 531.

[0164] Please refer to the reference. Figure 8 and Figure 9 In one embodiment of this application, the protruding structure 535 is provided with a mounting hole 536, and the second component 51 is mounted in the mounting hole 536.

[0165] The mounting hole 536 allows the second component 51 to be inserted through it. In this case, the protruding structure 535 can be a protruding post, protrusion, or hanging ring as described above, as long as it has the mounting hole 536. Alternatively, the second component 51 can be installed on the protruding structure 535 by making the mounting hole 536 a through hole, allowing one end of the second component 51 to pass through the mounting hole 536, and then the other end to be stopped and limited by the stop portion 513 of the second component 51 as described below, thus achieving the connection and fit between the second component 51 and the mounting hole 536. Alternatively, the protruding structure 535 can have a placement notch connecting the inner and outer sides of the mounting hole 536, allowing the end of the second component 51 with the stop portion 513 to be directly inserted into the mounting hole 536 through the placement notch. Or, the mounting hole 536 can be a blind hole structure, including a large hole and a small hole that are connected. At this point, as described above, a placement notch communicating with the mounting hole 536 can be provided to accommodate the end of the second component 51 with the stop portion 513, so that the stop portion 513 and a portion of the second component 51 are respectively located in the large hole and the small hole of the mounting hole 536. Alternatively, one end of the second component 51 can be provided with an elastic protrusion so that the elastic protrusion can be elastically engaged with the inner large hole of the mounting hole 536.

[0166] In this embodiment, a mounting hole 536 is provided on the protruding structure 535 to mount the second component 51. The structure of the mounting hole 536 is relatively simple, which helps to simplify the structural design of the protruding structure 535 and improve the convenience of mounting the second component 51 on the third component 531. At the same time, the mounting hole 536 can also increase the contact area with the second component 51, which helps to improve the limiting effect on the second component 51, so as to improve the stability of the connection between the second component 51 and the third component 531.

[0167] Additionally, it should be noted that in other embodiments, when the protrusion structure 535 is configured as two clamping plates as described above, one end of the second member 51 can be clamped and limited.

[0168] Please refer to the reference. Figure 8 and Figure 9 In one embodiment of this application, the second component 51 includes a main body section 511 and a through section 512. The main body section 511 is located outside the mounting hole 536. The through section 512 passes through the mounting hole 536. One end of the through section 512 is connected to the main body section 511, and the other end is provided with a stop portion 513, which is located outside the mounting hole 536.

[0169] The stop portion 513 can be spherical or block-shaped; this application does not limit the structural type of the stop portion 513. Furthermore, the stop portion 513 may be provided only at one end of the second member 51, while the other end may not have a stop portion 513, allowing the second member 51 to pass through the end without the stop portion 513 and be installed in the mounting hole 536. Of course, when the second member 51 has a placement notch connecting the inner and outer sides of the mounting hole 536 as described above for installation, the second member 51 may have a stop portion 513 at only one end, or at both ends. In addition, the mounting hole 536 may extend circumferentially along the third member 531, or it may extend along the rotation axis of the third member 531.

[0170] In this embodiment, the second component 51 is configured to include a main body segment 511 and a through segment 512, with a stop portion 513 provided at the end of the through segment 512 away from the main body segment 511. This allows the second component 51 to be installed on the third component 531 after passing through the mounting hole 536, through the stop portion 513 and the protruding structure 535, thus simplifying the installation process and improving the convenience of installing the second component 51 on the third component 531. Simultaneously, it further simplifies the structure of the mounting hole 536, thereby improving the ease of manufacturing the third component 531.

[0171] Please refer to the reference. Figure 8 and Figure 9 In one embodiment of this application, the side peripheral surface of the third component 531 is provided with an anti-slip structure 537, and the second component 51 is arranged around the anti-slip structure 537.

[0172] The anti-slip structure 537 can be a protruding rib on the side circumferential surface of the third component 531, and multiple ribs can be arranged along the circumference of the third component 531. Alternatively, the anti-slip structure 537 can also be an anti-slip pad fitted onto the side circumferential surface of the third component 531. Furthermore, when the side circumferential surface of the third component 531 has a protruding structure 535 as described above, the two can be staggered; that is, the anti-slip structure 537 is not provided at the location of the protruding structure 535, and the anti-slip structure 537 is located in the area of ​​the side circumferential surface of the third component 531 that does not correspond to the protruding structure 535. Additionally, when the third component 531 includes a main body 533 and an auxiliary part 534 as described above, the anti-slip structure 537 can be provided on the main body 533.

[0173] In this embodiment, an anti-slip structure 537 is provided on the side peripheral surface of the third component 531, so that when the second component 51 is wound around the side peripheral surface of the third component 531, the anti-slip structure 537 can increase the friction between the second component 51 and the third component 531, thereby improving the stability of the second component 51 being wound around the third component 531, and thus improving the stability of the tension of the second component 51.

[0174] Please refer to the reference. Figure 5 , Figure 6 , Figure 8 as well as Figure 9 In one embodiment of this application, the first component 30 has a first wall surface 31, and the third component 531 is rotatably disposed on the first wall surface 31; the adjustment assembly 53 further includes a fourth component 541, which is disposed between the third component 531 and the first wall surface 31.

[0175] The fourth component 541 can be used to isolate the third component 531 from the first wall surface 31. The fourth component 541 can be a plate structure. In this case, the fourth component 541 can have a second through hole 542, as described below, for the first column in the first fastener 538 to pass through, allowing the fourth component 541 to be clamped and limited by the first fastener 538. Alternatively, the fourth component 541 can be located on the radial side of the first column of the third component 531, offset from the first column. The radial direction of the third component 531 described in this application refers to the direction intersecting the rotation axis direction of the third component 531. Furthermore, the fourth component 541 can also be a multi-plate structure comprising multiple plates arranged circumferentially along the third component 531; this application does not limit the structural type of the fourth component 541. Furthermore, when the third component 531 includes the main body 533 and the auxiliary part 534 as described above, the fourth component 541 may be disposed between the main body 533 and the first wall surface 31.

[0176] In this embodiment, a fourth component 541 is provided between the third component 531 and the first wall surface 31, so that the fourth component 541 can isolate the third component 531 from the first component 30, reduce the possibility of the first component 30 being worn by the rotation of the third component 531, and realize that the first component 30 can be replaced by replacing the fourth component 541.

[0177] In one embodiment of this application, the fourth component 541 may be made of high manganese steel, high chromium cast iron, wear-resistant alloy steel, or hard alloy wear-resistant material in order to improve the service life of the fourth component 541.

[0178] Please refer to the reference. Figure 8 and Figure 9 In one embodiment of this application, the fourth component 541 is provided with a second through hole 542, and the first column section 539 of the first fastener 538 passes through the second through hole 542.

[0179] In this embodiment, the third component 531 is provided with a second through hole 542 for the first column section 539 of the first fastener 538 to pass through, so that the third component 531 can also be clamped and fixed by the first fastener 538, thereby simplifying the structural configuration of the adjustment component 53.

[0180] Furthermore, it should be noted that, in addition to being disposed between the third component 531 and the first wall surface 31 as described above to isolate the two, in one embodiment of this application, the fourth component 541 can also be used to block and limit the second component 51 that is wound around the third component 531 along the rotation axis of the third component 531. Moreover, when the third component 531 is used to block and limit the second component 51 wound around the third component 531, the fourth component 541 can be disposed between the third component 531 and the first wall surface 31 as described above, to achieve both isolation and blocking / limiting functions. Of course, the fourth component 541 can also be sleeved on the third component 531 to have a blocking / limiting function without an isolation function.

[0181] Please refer to the reference. Figure 8 and Figure 9 In one embodiment of this application, to improve the stability of the cooperation between the third component 531 and the fourth component 541, the fourth component 541 may also be provided with a receiving groove 543, and the second through hole 542 may be provided in the groove wall of the receiving groove 543. In this case, the receiving groove 543 can accommodate and limit the portion of the third component 531 near the first wall surface 31, thereby improving the stability of the assembly of the adjusting component 53. The shape of the receiving groove 543 may be the same as the shape of the end of the third component 531 near the first wall surface 31, for example, both may be circular, so that the receiving groove 543 can abut and limit the third component 531 around the groove sidewall.

[0182] Please refer to the reference. Figure 8 and Figure 9 In one embodiment of this application, the adjusting component 53 may further include a fifth component 544, based on the fact that the fourth component 541 has at least a blocking and limiting function. The fourth component 541 and the fifth component 544 are arranged at intervals along the rotation axis of the third component 531. The second component 51, which is wrapped around the third component 531, is located between the fourth component 541 and the fifth component 544.

[0183] The fourth component 541 and the fifth component 544 can be arranged opposite each other along the rotation axis of the third component 531, providing space between them to accommodate the second component 51. The fourth component 541 can be sleeved on the third component 531 or disposed between the third component 531 and the first wall surface 31. The fifth component 544 can be sleeved on the third component 531 or disposed on the side of the third component 531 away from the first wall surface 31. Furthermore, the fifth component 544 can be a plate structure, or it can be a multi-plate structure comprising multiple plates spaced apart circumferentially along the third component 531. This application does not limit the structural type of the fifth component 544.

[0184] In this embodiment, the fourth component 541 and the fifth component 544 can limit the second component 51 that is wound around the third component 531, reducing the possibility that the second component 51 may detach from the third component 531 along the rotation axis of the third component 531, thereby improving the stability of the second component 51 wound around the third component 531, so as to improve the stability of the tension of the second component 51.

[0185] Please refer to the reference. Figure 8 and Figure 9 In one embodiment of this application, the fifth component 544 is provided with a third through hole 545, and a portion of the third component 531 is located between the fourth component 541 and the fifth component 544, and is partially through the third through hole 545.

[0186] The third through hole 545 can be provided in the direction of the rotation axis of the third component 531, corresponding to the second through hole 542 and the receiving groove 543 on the fourth component 541, so that the end of the third component 531 away from the first wall surface 31 of the first component 30 can be inserted.

[0187] In this embodiment, the third through hole 545 allows the end of the third component 531 away from the first wall surface 31 to be exposed so that the end face of the third component 531 in the direction of rotation axis can be clamped and limited by the first fastener 538 as described above.

[0188] Please refer to the reference. Figure 8 and Figure 9 In one embodiment of this application, the fifth member 544 is further provided with a clearance notch 546, which penetrates the inner and outer sides of the third through hole 545, and penetrates both sides of the fifth member 544 in the direction of the rotation axis of the third member 531.

[0189] In this embodiment, a clearance notch 546 is further provided on the fifth member 544, so that when the third member 531 is inserted and installed on the fourth member 541 and the fifth member 544, the protrusion structure 535 on the side circumferential surface of the third member 531 can pass through the clearance notch 546 so as to be installed between the fourth member 541 and the fifth member 544.

[0190] In one embodiment of this application, in the direction parallel to the rotation axis of the third member 531 and from the fourth member 541 to the fifth member 544, the third member 531 may include a member body 533 and an auxiliary part 534 as described above; a portion of the member body 533 is located between the fourth member 541 and the fifth member 544 and partially passes through the third through hole 545; the second member 51 is connected to the member body 533; and the auxiliary part 534 is connected to the member body 533 and is located on the side of the fifth member 544 away from the fourth member 541.

[0191] In this embodiment, the auxiliary portion 534 in the second component 51 is protruded on the side of the fifth component 544 facing away from the fourth component 541, so that in the direction of the rotation axis of the third component 531, the auxiliary portion 534 can be located outside one end of the third through hole 545, thereby facilitating the application of force to drive the third component 531 to rotate.

[0192] Please refer to the reference. Figure 8 and Figure 9 In one embodiment of this application, the adjustment component 53 further includes a sixth component 547, which is connected to the fourth component 541 and the fifth component 544.

[0193] The sixth component 547 can be used to connect the fourth component 541 and the fifth component 544. The sixth component 547 can be a column structure or a plate structure; this application does not limit the structural type of the sixth component 547. Furthermore, the sixth component 547 can be disposed between the fourth component 541 and the fifth component 544, or it can be disposed on one side of the fourth component 541 and the fifth component 544 along the radial direction of the third component 531; this application also does not limit the placement of the sixth component 547.

[0194] In this embodiment, the fourth component 541 and the fifth component 544 can be connected by the sixth component 547, so that the fourth component 541, the fifth component 544 and the sixth component 547 can be connected to form a whole, thereby improving the overall strength of this part. At the same time, this part can be installed in one go, so as to improve the convenience of installation.

[0195] Please refer to the conclusion. Figure 8 and Figure 9In one embodiment of this application, the sixth component 547 is disposed between the fourth component 541 and the fifth component 544, and the sixth component 547 is provided with a first hole; the fourth component 541 and the fifth component 544 are respectively provided with a second hole and a third hole corresponding to the first hole, and the first hole, the second hole and the third hole are connected to form a fourth through hole 548; the adjusting component 53 also includes a second fastener 549, the second fastener 549 is disposed through the fourth through hole 548 and connected to the first component 30, and the second fastener 549 cooperates with the first component 30 to clamp the fourth component 541, the fifth component 544 and the sixth component 547.

[0196] In this embodiment, by inserting the second fastener 549, the fourth component 541, the fifth component 544, and the sixth component 547 can be installed and connected to the first component 30, thereby improving the convenience of installing these components on the first component 30.

[0197] Please refer to the conclusion. Figure 8 and Figure 9 In one embodiment of this application, the fourth component 541, the fifth component 544, and the sixth component 547 can be integrally formed structures to improve manufacturing efficiency and overall structural strength.

[0198] In one embodiment of this application, the second fastener 549 includes a second column section 550 and a second limiting portion 551. The second column section 550 is connected to the first component 30 and passes through the fourth through hole 548. The second limiting portion 551 is connected to the second column section 550 and cooperates with the first component 30 to clamp the fourth component 541, the fifth component 544 and the sixth component 547.

[0199] In this design, the second cylindrical section 550 can be a screw, the second limiting part 551 can be a nut, and the second fastener 549 is formed as a screw. At this time, the first component 30 can be provided with a third threaded hole, and the second cylindrical section 550 can be threadedly connected to the third threaded hole. This third threaded hole can be formed directly on the first component 30, or it can be formed by a nut provided within the first component 30.

[0200] In this embodiment, the second fastener 549 is threadedly connected to the first component 30. This allows for easy assembly and disassembly of the fourth component 541, the fifth component 544, and the sixth component 547 by simply tightening or loosening the fastener, improving ease of assembly and disassembly and facilitating maintenance or replacement. Furthermore, the threaded connection offers reliability, which also contributes to improved stability during the installation of the fourth component 541, the fifth component 544, and the sixth component 547. Additionally, when maintenance or replacement of the third component 531 is required, it is convenient to remove it from the first component 30 for this purpose.

[0201] Of course, in some embodiments, the second limiting part 551 is provided with a fourth threaded hole, and the second cylindrical section 550 is threadedly connected to the fourth threaded hole. In this case, the second cylindrical section 550 can be a stud, and the second limiting part 551 can be a nut, so that the second limiting part 551 and the second cylindrical section 550 form a threaded connection, which can also achieve the effect of the threaded connection between the second fastener 549 and the second component 51.

[0202] Alternatively, in some embodiments, the second column segment 550 of the second fastener 549 may be connected to the first component 30 by adhesive bonding, welding, snap-fit ​​connection, or magnetic attraction, etc. This application does not limit the connection method between the two. Similarly, the second column segment 550 and the second limiting part 551 may also be connected by adhesive bonding, welding, snap-fit ​​connection, or magnetic attraction, etc., this application also does not limit the connection method between the two.

[0203] Additionally, it should be noted that, besides being used to connect the fourth component 541 and the fifth component 544 as described above, in one embodiment of this application, please refer to... Figure 8 The sixth component 547 can be used for the second component 51 to pass around.

[0204] Furthermore, when the sixth component 547 can be used for the second component 51 to pass around, the sixth component 547 can be connected to the fourth component 541 and the fifth component 544 as described above; of course, it can also be that it has no connection relationship with the fourth component 541 and the fifth component 544; even, in some embodiments, only the sixth component 547 can be provided, without the fourth component 541 and the fifth component 544. That is, the sixth component 547 is provided on the first component 30 and located on one side of the radial direction of the third component 531; the arrangement direction of the sixth component 547 and the third component 531 intersects the first direction X, so that the second component 51 can pass around the sixth component 547.

[0205] In this embodiment, a sixth member 547 is provided in the radial direction of the third member 531, allowing the second member 51 to pass around the sixth member 547. This ensures that the portion of the second member 51 located between the two first members 30 on both sides of the battery pack 20A is not affected by the winding on the side circumferential surface of the third member 531, and can maintain its extension along the first direction X and be in a preset position, thus stably providing a pulling and limiting function at the required location. Simultaneously, the sixth member 547 can also provide a spreading and limiting function for the second member 51 in the first direction X, thereby improving the tension stability of the second member 51.

[0206] Please refer to Figure 8In one embodiment of this application, when the second member 51 passes around the sixth member 547, the sixth member 547 can be placed between the fourth member 541 and the fifth member 544 as described above, so that the fourth member 541 and the fifth member 544 can also limit the second member 51 passing around the sixth member 547 in the direction of the rotation axis of the third member 531.

[0207] Please refer to the reference. Figures 4 to 6 In one embodiment of this application, the second component 51 is disposed on one side of the battery pack 20A in the second direction Z, the second direction Z intersects the first direction X, and the rotation axis of the third component 531 is parallel to the second direction Z.

[0208] In this embodiment, the rotation axis of the third component 531 is parallel to the second direction Z, so that the third component 531 is better exposed on the side of the battery pack 20A facing the second component 51, so as to rotate it to adjust the tension of the second component 51.

[0209] Of course, this application is not limited to this. In other embodiments, when the second component 51 is disposed on one side of the second direction Z of the battery pack 20A, the rotation axis of the third component 531 may be parallel to the third direction Y.

[0210] Please refer to the reference. Figures 4 to 7 In one embodiment of this application, the second component 51 is a rope.

[0211] In this embodiment, the second component 51 is configured as a rope, which allows it to be more uniformly spaced from its center in the circumferential direction. This reduces the area of ​​the cross-section of the second component 51 perpendicular to its extension direction, thereby reducing the contact area with the battery cell 20. This decreases the possibility of the second component 51 becoming a local heat conduction path for the battery cell 20, leading to uneven temperature distribution in the battery cell 20. Please refer to the reference [reference needed]. Figure 10 and Figure 11 The second component 51 may include one strand of rope or at least two strands of rope. The at least two strands of rope may be parallel or intertwined. Moreover, the strands of rope may be formed by twisting together metal wire, nylon wire, or other materials.

[0212] Please refer to the reference. Figure 5 , Figure 7 as well as Figure 10 In one embodiment of this application, an insulating member 514 is sleeved on the outer side of the second member 51.

[0213] Insulating component 514 can be made of insulating material, such as polyethylene or polyethylene terephthalate.

[0214] In this embodiment, the insulating member 514 serves two purposes: firstly, it provides insulation and protection between the second component 51 and the battery cell 20, reducing the possibility of a short circuit; secondly, the insulating member 514 also acts as a containment and restraint mechanism for the second component 51, improving the structural stability of the second component 51.

[0215] In one embodiment of this application, the insulating member 514 can be configured as a heat-fusion sleeve structure, so that it can be installed after being heated and shrunk.

[0216] Please refer to the reference. Figure 5 and Figure 6 In one embodiment of this application, the first component 30 is provided with a first groove 33, and the adjustment component 53 is provided in the first groove 33.

[0217] In this embodiment, the adjusting assembly 53 can be installed in the first groove 33 so that the second component 51 can exert pressure and limit the battery cell 20 along the second direction Z. Simultaneously, it can improve the compactness of the adjusting assembly 53's distribution on the first component 30. The first wall surface 31 described above can be formed by the groove wall of the first groove 33 intersecting with the second direction Z.

[0218] Please refer to the reference. Figures 4 to 7 In one embodiment of this application, the first components 30 located on both sides of the battery pack 20A are defined as component one 37 and component two 39, and the adjustment component 53 is disposed on component one 37; the restraint mechanism 50 further includes a locking component 57, which is disposed on component two 39; one end of the second component 51 is connected to the third component 531 in the adjustment component 53, and the other end is connected to the locking component 57.

[0219] The locking assembly 57 can be used to fix one end of the second component 51 to the first component 30. The locking assembly 57 can be a seventh component 571 as described below, used to clamp and limit one end of the second component 51; alternatively, the seventh component 571 can cooperate with the first component 30 to clamp and limit one end of the second component 51; or, the seventh component 571 can be configured as a hook or loop, with one end of the second component 51 attached to it; or, one end of the second component 51 can be glued or welded to the seventh component 571. This application does not limit the structural type of the locking assembly 57 or the method of fixing the second component 51.

[0220] In this embodiment, the adjustment component 53 and the locking component 57 are respectively disposed on component 1 37 and component 2 39, so that the second component 51 only needs to cross once between component 1 37 and component 2 39, so as to shorten the extension length of the second component 51, reduce manufacturing costs, and simplify the structure of the restraint mechanism 50.

[0221] Of course, this application is not limited to this; please refer to other embodiments. Figure 12 Alternatively, the adjusting component 53 and the locking component 57 can be set on the same first component 30, for example, they can both be set on component 37. In this case, a guide 391 can be provided on component 39; one end of the second component 51 is connected to the third component 531 in the adjusting component 53, and the other end is connected to the locking component 57. The second component 51 also passes around the guide 391.

[0222] In this embodiment, the second component 51 can be connected at one end to the third component 531 of the adjusting assembly 53, then span across component 1 37 and component 2 39, and then bypass the guide member 391 before again circling across component 1 37 and component 2 39. Thus, the second component 51 can span across component 1 37 and component 2 39 twice, thereby improving the pulling and limiting effect on the two first components 30 located on both sides of the battery pack 20A. The guide member 391 can be one, or at least two, arranged along the third direction Y.

[0223] In one embodiment of this application, the restraint mechanism 50 may include two adjustment components 53, which are respectively disposed on component 1 37 and component 2 39. The two ends of the second component 51 are respectively connected to the third component 531 of the two adjustment components 53, so that the tension of the second component 51 can be adjusted by the adjustment components 53 on both sides of the battery pack 20A along the first direction X.

[0224] Please refer to the reference. Figure 5 , Figure 7 , Figure 10 as well as Figure 11 In one embodiment of this application, the locking component 57 includes a seventh component 571, which has a clamping space 572, and the second component 51 is clamped in the clamping space 572.

[0225] The clamping space 572 can be used to clamp the second component 51. The clamping space 572 can be positioned between two opposing split parts 573 within the seventh component 571, as described below. Alternatively, the seventh component 571 can have two elastic arms, with the clamping space 572 positioned between these two elastic arms. This application does not limit the structural type of the seventh component 571.

[0226] In this embodiment, the clamping space 572 of the seventh component 571 clamps and limits the second component 51, so that one end of the second component 51 can be subjected to clamping force, thereby improving the stability of the second component 51 at that end. At the same time, the clamping and installation is also relatively simple, which further improves the convenience of fixing the second component 51 at that end.

[0227] Of course, this application is not limited to this. In other embodiments, the seventh component 571 may be configured to cooperate with the first component 30 to clamp the second component 51, so that the first component 30 can be directly used, simplifying the structural configuration of the seventh component 571.

[0228] Please refer to the reference. Figure 10 and Figure 11 In one embodiment of this application, when the seventh component 571 is provided with a clamping space 572, the seventh component 571 includes two separate parts 573, and the clamping space 572 is formed between the two separate parts 573; the locking assembly 57 also includes a third fastener 575, which passes through the two separate parts 573 and is connected to the first component 30 to cooperate with the first component 30 to clamp the two separate parts 573.

[0229] Alternatively, the two separate components 573 may be partially spaced apart to form a clamping space 572 between them, while the other part may be in contact. Of course, the two separate components 573 may also be entirely spaced apart to form a clamping space 572 between them.

[0230] In this embodiment, the seventh component 571 is configured to include two separate parts 573, such that one end of the second component 51 can be clamped between the two separate parts 573. In this case, the separate parts 573 isolate the second component 51 from the first component 30, preventing the second component 51 from contacting the first component 30, thereby reducing the possibility of wear on the first component 30. This can be achieved by simply replacing the separate parts 573. Furthermore, the two separate parts 573 are fastened together by a third fastener 575 to cooperate with and clamp the first component 30. This allows both separate parts 573 to be installed and connected via the third fastener 575, thus simplifying the structural design.

[0231] Please refer to Figure 11In one embodiment of this application, at least one of the two separate components 573 may be provided with a limiting groove 574 to accommodate the second component 51, thereby improving the fitting and accommodating effect between the two components and increasing the contact area between the seventh component 571 and the second component 51, thus further improving the stability of clamping the second component 51. When both separate components 573 are provided with limiting grooves 574, the clamping space 572 can be formed by combining the two limiting grooves 574 of the two separate components 573. When only one of the two separate components 573 is provided with a limiting groove 574, the clamping space 572 can be formed by combining the limiting groove 574 of one separate component 573 with the other separate component 573.

[0232] In one embodiment of this application, the number of clamping spaces 572 can be set to one, or two, respectively located on both sides of the third fastener 575 in the third direction Y, so that after one end of the second component 51 passes through one clamping space 572, it can also pass through the other clamping space 572 again, thereby improving the stability of clamping the second component 51. Of course, the number of clamping spaces 572 can also be further set to three or more, and this application does not limit the number of clamping spaces 572.

[0233] Please refer to Figure 11 In one embodiment of this application, the third fastener 575 includes a third column segment 576 and a third limiting portion 577. The third column segment 576 can pass through the two separate parts 573 and is connected to the first component 30. The third limiting portion 577 is connected to the third column segment 576 and cooperates with the first component 30 to clamp the two separate parts 573. In this case, the third column can be a stud and connected to the fifth thread in the first component 30, and the third limiting portion 577 can be a nut, so that the third fastener 575 is formed as a screw, in order to improve the convenience of disassembly and assembly of the two separate parts 573 and the stability of the installation connection. Of course, the third column can also be a stud, and the third limiting portion 577 can be a nut that is threadedly connected to the third column.

[0234] Alternatively, in some embodiments, the third column segment 576 and the first component 30 may be connected by welding, adhesive bonding, magnetic attraction, or snap-fit, etc., and this application does not limit the connection method between the two. Similarly, the third limiting part 577 and the third column may be connected by welding, adhesive bonding, magnetic attraction, or snap-fit, etc., and this application does not limit the connection method between the two.

[0235] In one embodiment of this application, the seventh component 571 may be made of high manganese steel, high chromium cast iron, wear-resistant alloy steel, or hard alloy wear-resistant material in order to improve the service life of the seventh component 571.

[0236] Please refer to the reference. Figure 5 and Figure 7 In one embodiment of this application, the first component 30 is provided with a second groove 35, and the locking component 57 is provided in the second groove 35.

[0237] In this embodiment, the adjustment assembly 53 can be installed in the second groove 35 so that the second component 51 can exert a pressure limiting effect on the battery cell 20 along the second direction Z. Simultaneously, it can improve the compactness of the distribution of the adjustment assembly 53 on the first component 30. Furthermore, when the adjustment assembly 53 and the locking assembly 57 are disposed on the same first component 30, the first groove 33 and the second groove 35 described above can be connected to form a single groove, or they can be disposed separately and independently.

[0238] Please refer to the reference. Figure 4 and Figure 5 In one embodiment of this application, along the first direction X, the housing 10 has a first housing wall 111 opposite to the battery pack 20A; among the two first components 30 located on both sides of the battery pack 20A, at least one first component 30 is formed by the first housing wall 111.

[0239] At least one first component 30 is formed by the first housing wall 111. This means that two components located on both sides of the battery pack 20A, such as component one 37 and component two 39, may be formed by only component one 37, only component two 39, or both component one 37 and component two 39. Furthermore, since the battery pack 20A is mainly installed and housed within the first portion 11 of the housing 10, the first housing wall 111 may be formed by the housing walls of the first portion 11 that intersect in the first direction X.

[0240] In this embodiment, the first component 30 is formed by utilizing the first box wall 111 in the box 10, so that the battery box can simultaneously accommodate the battery cells 20 and suppress expansion, achieving at least two functions in one structure, thereby simplifying the structural design. At the same time, it also allows for better utilization of the space within the box 10, thereby increasing the battery energy density of the battery device 100.

[0241] Please refer to the reference. Figure 4 and Figure 5 In one embodiment of this application, the battery device 100 further includes a beam structure 70, which is disposed inside the housing 10 and arranged with the battery pack 20A along the first direction X; at least one first component 30 is formed by the beam structure 70.

[0242] In this embodiment, the beam structure 70 can be formed as an expansion beam, so that the beam structure 70 can form a protective layer for the battery pack 20A within the housing 10, thereby improving the protective effect on the individual battery cells 20. Furthermore, when multiple beam structures 70 are provided, the housing 10 can be divided into different areas to house the battery packs 20A, thereby shortening the length of each battery pack 20A in the first direction X, preventing excessive expansion force on each battery pack 20A, and improving the ease of suppression.

[0243] In one embodiment of this application, among the two first components 30 located on both sides of the battery pack 20A, one first component 30 may be formed by the first box wall 111 and the other first component 30 may be formed by the beam structure 70, so as to make good use of the space inside the box 10 and improve the energy density of the battery device 100. At the same time, the beam structure 70 can also be used to separate the area where the battery pack 20A is placed and the area where the battery management system and other devices are placed, thereby improving the regularity of their respective installation arrangements.

[0244] In one embodiment of this application, the battery pack 20A has end plates on both sides in the first direction X, and the end plates are formed as first components 30.

[0245] In this embodiment, each battery pack 20A may have end plates on both sides in the first direction X, so that at least two battery cells 20 in the battery pack 20A can be clamped between the two end plates. The two end plates may be connected on both sides in the third direction Y by side plates or cable ties, so that the battery pack 20A can form a module, improving the convenience of its installation and subsequent maintenance in the housing 10.

[0246] Please refer to the reference. Figure 4 and Figure 5 In one embodiment of this application, when at least two sets of battery packs 20A are arranged side by side along the third direction Y, and each set is provided with at least one restraining mechanism 50; in the restraining mechanisms 50 corresponding to different battery packs 20A, the adjustment component 53 in each restraining mechanism 50 may be located on the same side of the battery pack 20A in the first direction X, or may be located on different sides of the battery pack 20A in the first direction X.

[0247] Please refer to the reference. Figures 4 to 11In one embodiment of this application, the battery device 100 includes a battery pack 20A, a first component 30, and a restraining mechanism 50; the battery pack 20A includes at least two battery cells 20 arranged along a first direction X; along the first direction X, the battery pack 20A is provided on both sides of the first component 30, the first component 30 is configured to limit the battery pack 20A in the first direction X, and two first components 30 are provided on both sides of the battery pack 20A, respectively forming component one 37 and component two 39; the restraining mechanism 50 includes a second component 51, an adjusting component 53, and a locking component 57, the adjusting component 53 and the locking component 57 are respectively provided on component one 37 and component two 39, one end of the second component 51 is connected to the adjusting component 53, and the other end is connected to the locking component 57. The adjusting assembly 53 includes a third component 531 and a first fastener 538. The third component 531 is rotatably disposed on the first component 30 and connected to the second component 51 to be configured to wind up and release the second component 51. The third component 531 is provided with a first through hole 532, which passes through both sides of the third component 531 in the direction of its rotation axis. The first fastener 538 includes a first column section 539 and a first limiting part 540. The first column section 539 is connected to the first component 30 and passes through the first through hole 532 so that the third component 531 can be rotatably sleeved on the first column section 539. The first limiting part 540 is connected to the first column section 539 and cooperates with the first component 30 to clamp the third component 531. The adjustment assembly 53 also includes a sixth component 547, which is disposed on the first component 30 and located on one side of the radial direction of the third component 531; the arrangement direction of the sixth component 547 and the third component 531 intersects the first direction X, and the second component 51 passes around the sixth component 547; the second component 51 is a rope; the seventh component 571 includes two separate parts 573, and a clamping space 572 is formed between the two separate parts 573; the locking assembly 57 also includes a third fastener 575, which passes through the two separate parts 573 and is connected to the first component 30 to cooperate with the first component 30 to clamp the two separate parts 573.

[0248] The above description is merely a preferred embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the inventive concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. A battery device, characterized by, include: The battery pack includes at least two battery cells arranged along a first direction; A first component is provided on both sides of the battery pack along the first direction, and the first component is configured to limit the battery pack in the first direction. as well as The restraint mechanism includes a second component and an adjustment assembly. The second component is connected to the first component located on both sides of the battery pack. The second component is a flexible structure and is a rope. The adjustment assembly includes a third component, and at least one of the first components is provided with the movable third component, the third component being able to be fixed relative to the first component; The third component also engages in a transmission relationship with the second component to adjust the tension of the second component.

2. The battery device of claim 1, wherein The third component is rotatably disposed on the first component and connected to the second component to be configured to wind up and release the second component.

3. The battery device of claim 2, wherein The adjustment assembly further includes a first fastener, which is connected to the first component; Along the rotation axis of the third component, the first fastener cooperates with the first component to clamp both sides of the third component, so that the third component is limited and fixed relative to the first component.

4. The battery device of claim 3, wherein The third component is provided with a first through hole, which passes through both sides of the third component in the direction of the rotation axis. The first fastener includes a first column section and a first limiting part. The first column section is connected to the first component and passes through the first through hole, so that the third component can be rotatably sleeved on the first column section. The first limiting part is connected to the first column segment and cooperates with the first component to clamp the third component.

5. The battery device of claim 4, wherein The first component is provided with a first threaded hole, and the first cylindrical section is threadedly connected to the first threaded hole; Alternatively, the first limiting part is provided with a second threaded hole, and the first cylindrical section is threadedly connected to the second threaded hole.

6. The battery device of claim 2, wherein Along the rotation axis of the third component, the third component includes a main body and an auxiliary part, and the second component is connected to the main body of the component; The auxiliary part is connected to the main body of the component, and the projection of the auxiliary part on the projection plane perpendicular to the rotation axis of the third component is non-circular.

7. The battery device of claim 2, wherein The third component has a protruding structure on its side peripheral surface, and the second component is mounted on the protruding structure.

8. The battery device of claim 7, wherein The protruding structure is provided with mounting holes, and the second component is mounted in the mounting holes.

9. The battery device of claim 8, wherein, The second component includes a main body section and a through section, wherein the main body section is located outside the mounting hole; The through section passes through the mounting hole, one end of the through section is connected to the main body section, and the other end is provided with a stop part, which is located outside the mounting hole.

10. The battery device of claim 2, wherein The third component has an anti-slip structure on its side circumferential surface, and the second component is wrapped around the anti-slip structure.

11. The battery device of claim 2, wherein The first component has a first wall surface, and the third component is rotatably disposed on the first wall surface; The adjustment assembly further includes a fourth component, which is disposed between the third component and the first wall surface.

12. The battery device of claim 11, wherein, The adjustment assembly includes a first column segment connected to the first wall surface, and the third component is rotatably sleeved on the first column segment. The fourth component is provided with a second through hole, and the first column section passes through the second through hole.

13. The battery device of claim 2, wherein The adjustment assembly further includes a fourth component and a fifth component, wherein the fourth component and the fifth component are arranged at intervals along the rotation axis of the third component; The second component, which is wound around the third component, is located between the fourth component and the fifth component.

14. The battery device of claim 13, wherein, The first component has a first wall surface, the third component is rotatably disposed on the first wall surface, and the fourth component is disposed closer to the first wall surface than the fifth component; The fifth component is provided with a third through hole, and part of the third component is located between the fourth component and the fifth component, and part of it passes through the third through hole.

15. The battery device of claim 14, wherein, The third component has a protruding structure on its side peripheral surface, the protruding structure is located between the fourth component and the fifth component, and the second component is installed on the protruding structure; The fifth component is also provided with a clearance notch, which penetrates the inner and outer sides of the third through hole, and penetrates both sides of the fifth component in the direction of the rotation axis of the third component.

16. The battery device of claim 14, wherein, In a direction parallel to the rotation axis of the third component and from the fourth component to the fifth component, the third component includes a main body and an auxiliary part; The main body of the component is located between the fourth component and the fifth component, and partially passes through the third through hole; the second component is connected to the main body of the component. The auxiliary part is connected to the main body of the component and is located on the side of the fifth component away from the fourth component.

17. The battery device of claim 13, wherein, The adjustment assembly further includes a sixth component, which is connected to the fourth component and the fifth component.

18. The battery device of claim 17, wherein, The sixth component is disposed between the fourth component and the fifth component, and the sixth component is provided with a first hole; The fourth component and the fifth component are respectively provided with a second hole and a third hole that communicate with the first hole. The first hole, the second hole and the third hole communicate to form a fourth through hole. The adjustment assembly further includes a second fastener, which passes through the fourth through hole and is connected to the first component. The second fastener cooperates with the first component to clamp the fourth component, the fifth component, and the sixth component.

19. The battery device of claim 2, wherein, The adjustment assembly further includes a sixth component, which is disposed on the first component and located on one side of the third component in the radial direction; The sixth component and the third component are arranged in the first direction, and the second component passes around the sixth component.

20. The battery device of claim 2, wherein, The second component is disposed on one side of the battery pack in a second direction, which intersects with the first direction, and the rotation axis of the third component is parallel to the second direction.

21. The battery device according to any one of claims 1 to 20, wherein An insulating component is fitted onto the outer side of the second component; And / or, the first component is provided with a first groove, and the adjustment component is provided in the first groove.

22. The battery device according to any one of claims 1 to 20, wherein The first components located on both sides of the battery pack are defined as component one and component two, and the restraint mechanism further includes a locking assembly; The adjustment component is disposed on the first component, the locking component is disposed on the second component, one end of the second component is connected to the third component in the adjustment component, and the other end is connected to the locking component; or, The adjustment assembly and the locking assembly are disposed on the first component. The second component is provided with a guide. One end of the second component is connected to the third component in the adjustment assembly, and the other end is connected to the locking assembly. The second component also passes around the guide.

23. The battery device of claim 22, wherein, The locking assembly includes a seventh component, the seventh component having a clamping space, and the second component clamping in the clamping space; or, The seventh component cooperates with the first component to clamp the second component.

24. The battery device of claim 23, wherein, When the seventh component is provided with a clamping space, the seventh component includes two separate parts, and the clamping space is formed between the two separate parts; The locking assembly further includes a third fastener, which passes through the two separate parts and is connected to the first component to cooperate with the first component to clamp the two separate parts.

25. The battery device of claim 22, wherein, The first component is provided with a second groove, and the locking assembly is disposed in the second groove.

26. The battery device of any one of claims 1 to 20, wherein, The battery device further includes a housing, in which the battery pack and the restraint mechanism are disposed; along the first direction, the housing has a first housing wall opposite to the battery pack; in the two first components located on both sides of the battery pack, at least one of the first components is formed by the first housing wall; And / or, the battery device further includes a beam structure disposed within the housing and arranged with the battery pack along the first direction; at least one of the first components is formed by the beam structure.

27. The battery device of any one of claims 1 to 20, wherein, The battery device also includes a housing, and the battery pack and the restraint mechanism are disposed inside the housing; The battery pack has end plates on both sides in the first direction, and the end plates are formed as the first component.

28. An electrical device, comprising: Includes the battery device as described in any one of claims 1 to 27.

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