Fixing assembly, battery and battery pack

Abstract

The utility model provides a fixed subassembly, battery and battery pack, the fixed subassembly includes side plate and spacer ring, spacer ring is adapted to fix pole core pole ear, spacer ring includes first spacer ring and second spacer ring, first spacer ring is connected with second spacer ring, first spacer ring is equipped with first embedding portion, second spacer ring is equipped with second embedding portion, second spacer ring is equipped with second embedding portion, second spacer ring is equipped with second embedding portion. The first space ring is provided with a first embedding part, the second space ring is provided with a second embedding part, the side plate comprises a clamping structure, and the clamping structure is connected with the first embedding part and / or the second embedding part, so that the side plate and the space ring are fixed. According to the design, the complexity and time consumption of a traditional interference fit mode are avoided, so that the buckling operation is simpler and more convenient.

Description

Technical Field

[0001] The utility model belongs to the field of batteries, and in particular relates to a fixing component, a battery and a battery pack. Background Art

[0002] The existing buckle spacer structure relies on the interference fit between the side plate and the spacer to achieve the buckling of the two. However, this design not only requires a certain degree of damage to the side plate or the spacer during buckling, but also the entire buckling process is quite cumbersome and time-consuming. Utility Model Content

[0003] The purpose of the utility model is to provide a fixing assembly, a battery and a battery pack, so as to at least partially solve the problems existing in the related art.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The utility model provides a fixing assembly for fixing a battery core tab, the fixing assembly comprising a side plate and a spacer, the spacer being adapted to fix the core tab, the spacer comprising a first spacer and a second spacer, the first spacer being connected to the second spacer, and the side plate comprising a clamping structure;

[0006] Wherein, the first spacer is provided with a first embedded portion, the clamping structure is connected to the first embedded portion, and / or the second spacer is provided with a second embedded portion, the clamping structure is connected to the second embedded portion, so as to fix the side plate and the spacer.

[0007] In an implementation of the utility model, the clamping structure is arranged on the edge of the side plate.

[0008] In one embodiment of the utility model, the spacer is provided with a limiting hole, and the limiting hole is the first embedded part and / or the second embedded part.

[0009] In one embodiment of the utility model, the first spacer is provided with a first embedded portion, and the second spacer is provided with a second embedded portion, wherein the first embedded portion and the second embedded portion are arranged opposite to each other, and the clamping structure is respectively connected to the first embedded portion and the second embedded portion.

[0010] In one embodiment of the present invention, the first spacer is provided with a first accommodating portion, and the second spacer is provided with a second accommodating portion, and the first accommodating portion and / or the second accommodating portion are used to accommodate part of the side panel.

[0011] In one embodiment of the utility model, the side plates are provided at both ends of the spacer along the first direction, the side plates include a first side plate and a second side plate, the first side plate and the second side plate are arranged opposite to each other, and the first direction is the extension direction of the spacer.

[0012] In an implementation of the present invention, the first accommodating portion is connected to the first embedding portion, and the second accommodating portion is connected to the second embedding portion.

[0013] In one embodiment of the utility model, the first accommodating portion is a first half groove, the first half groove opens toward the side panel, the second accommodating portion is a second half groove, the second half groove opens toward the side panel, the first half groove and the second half groove constitute a side panel groove, and the side panel is placed in the side panel groove.

[0014] In one embodiment of the present invention, the side plate groove has a guide edge for guiding the clamping structure to connect the first embedded portion and the second embedded portion.

[0015] In one embodiment of the utility model, after the side plate and the spacer are fixed, a gap is provided between the side plate and the spacer, and the minimum length of the gap in the second direction is d, and d satisfies: 0.3mm≤d≤0.6mm, and the second direction is the same as the extension direction of the side plate.

[0016] In one embodiment of the present invention, the spacer includes a fixing member, the first spacer includes a first fixing member and a second fixing member, the second spacer includes a third fixing member and a fourth fixing member, the first fixing member corresponds to the third fixing member, and the second fixing member corresponds to the fourth fixing member, which are used to cooperate and fix the first spacer and the second spacer.

[0017] In one embodiment of the present invention, the spacer includes a connection area and a clamping ear area, the first fixing member and the second fixing member are arranged in the connection area, and the connection area is adapted to connect the first spacer and the second spacer.

[0018] In an implementation of the present invention, the pole clamping ear areas are provided at both ends of the connection area.

[0019] In one embodiment of the utility model, a plurality of the first fixing members and a plurality of the second fixing members are provided on the first spacer, a plurality of the third fixing members and a plurality of the fourth fixing members are provided on the second spacer, the first fixing member and the fourth fixing member are groove structures, the second fixing member and the third fixing member are protrusion structures, the number of the first fixing member and the second fixing member is the same, and the number of the third fixing member and the fourth fixing member is the same.

[0020] The utility model also provides a battery, the battery comprises the above-mentioned fixing assembly, the battery also comprises a shell and a pole core, the fixing assembly is used to fix the pole core, and the shell accommodates the fixing assembly and the pole core.

[0021] The utility model also provides a battery pack, which includes the above-mentioned battery.

[0022] Compared with the prior art, the utility model has the following beneficial effects:

[0023] The utility model fixes the side plate through the combined structure of the first spacer and the second spacer, the spacer includes an embedded part, and the clip structure on the side plate is connected to the embedded part. This design avoids the cumbersome and time-consuming traditional interference fit method, making the connection between the spacer and the side plate simpler. At the same time, the design of the clip structure and the embedded part ensures the stability and reliability of the connection, effectively prevents the occurrence of poor connection, and utilizes the mutual constraints of the pole core, the side plate, and the spacer to reduce unnecessary degrees of freedom. In addition, the utility model further improves the connection performance between the side plate and the spacer, ensuring the overall stability and safety of the battery. This new battery pack structure not only simplifies the connection operation and improves production efficiency, but also ensures the safety and stability of the battery pack, bringing great convenience to the manufacture and maintenance of the battery pack.

[0024] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the utility model more obvious and easy to understand, the following preferred embodiments are specifically cited and described in detail with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0026] Figure 1 is a schematic diagram of a fixing assembly according to an embodiment of the utility model;

[0027] Figure 2 is a partial schematic diagram of a spacer according to an embodiment of the utility model;

[0028] Figure 3 is a partial schematic diagram of a spacer according to an embodiment of the utility model;

[0029] Figure 4 is a schematic diagram of the installation of a fixing assembly according to an embodiment of the utility model;

[0030] 10: side plate; 11: spacer;

[0031] 111: first spacer; 112: second spacer;

[0032] 12: snap-fit ​​structure; 13: embedded part;

[0033] 131: first embedded part; 132: second embedded part;

[0034] 113: second fixing member / third fixing member;

[0035] 114: first fixing member / fourth fixing member;

[0036] 14: first guide edge; 15: second guide edge;

[0037] 16: Accommodation part. DETAILED DESCRIPTION

[0038] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the present invention are further described below in conjunction with the accompanying drawings and through specific implementation methods. It is understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for the convenience of description, only the parts related to the present invention are shown in the accompanying drawings, rather than all of them.

[0039] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] In the description of this embodiment, the terms "upper", "lower", "right", and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation on the present utility model.

[0041] The terms "first", "second" and the like in the specification and claims of the present utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0042] In this article, Figure 1 As shown, the first direction D1 is the same as the extending direction of the spacer 11 , and the second direction D2 is the same as the extending direction of the side plate 10 .

[0043] The utility model provides a fixing assembly, which includes a side plate 10 and a spacer 11, the spacer 11 is adapted to fix the pole core ear, the spacer 11 includes a first spacer 111 and a second spacer 112, the first spacer 111 is connected to the second spacer 112, and the side plate 10 includes a clamping structure 12; wherein, the first spacer 111 is provided with a first embedded portion 131, the clamping structure 12 is connected to the first embedded portion 131, and / or the second spacer 112 is provided with a second embedded portion 132, the clamping structure 12 is connected to the second embedded portion 132, so as to fix the side plate 10 and the spacer 11. In a specific embodiment of the utility model, the spacer 11 is connected to fix the pole core and the pole ear. The utility model mainly relies on the interaction force between the spacer 11 and the side plate 10 to fix the pole core, the spacer 11 and the side plate 10 to each other. When the first spacer 111 and the second spacer 112 are connected together, the clamping structure 12 on the side plate 10 is connected to the embedded part 13 of the spacer 11, so as to realize the synchronous assembly and fixation of the spacer 11 and the side plate 10. The fixing method is simple and reliable.

[0044] The utility model adopts a combination structure of a first spacer 111 and a second spacer 112, and fixes the clamping structure 12 on the side plate 10 through the connection between the two. This design avoids the cumbersomeness and time-consumingness of the traditional interference fit method, making the connection operation easier. At the same time, the connection structure between the first spacer 111 and the second spacer 112 is carefully designed to ensure the stability and reliability of the connection, effectively prevent the occurrence of poor connection, and reduce unnecessary degrees of freedom by using the mutual constraints of the pole core, the side plate 10, and the spacer 11. In terms of the design of the side plate 10, the utility model introduces a clamping structure 12, which cooperates with the spacer 11 to achieve a fast and stable connection. The setting of the clamping structure 12 not only simplifies the connection steps and reduces the operation time, but also improves the accuracy and reliability of the connection. In addition, the utility model further improves the connection performance between the side plate 10 and the spacer 11, ensuring the overall stability and safety of the battery pack. This new battery pack structure not only simplifies the connection operation and improves production efficiency, but also ensures the safety and stability of the battery pack, bringing great convenience to the manufacture and maintenance of the battery pack.

[0045] In a specific embodiment of the present invention, the side panel 10 and the spacer 11 can also have a broader definition. The side panel 10 is not limited to the design of long and narrow sides. According to the needs of actual applications, the side panel 10 can be designed into different shapes and sizes, such as rectangle, trapezoid, etc., to adapt to battery packs of different specifications and structures. In some cases, the side can also be a long and wide surface. As a key component for fixing the pole core and the pole ear, the spacer 11 also has diversity in design. The shape and structure of the spacer 11 can also be adjusted according to the size and shape of the pole core and the pole ear to ensure the stability and reliability of the fixing effect. In an embodiment of the present invention, the spacer 11 has a first spacer 111 and a second spacer 112. The first spacer 111 and the second spacer 112 have two matching fixing parts, one fixing part is a protrusion, and the other fixing part is a corresponding groove, such as Figure 2 and Figure 3 The second fixing member / third fixing member 113 is a protrusion, and the first fixing member / fourth fixing member 114 is a groove. The fixing member of the first spacer 111 can be connected and fixed with the fixing member of the second spacer 112 correspondingly. In terms of the fixing method, in one embodiment of the utility model, not only the fixing is performed by the interaction force between the spacer 11 and the side plate 10, but also other auxiliary means can be used to enhance the stability of the fixing. For example, additional fixing members or locking mechanisms can be provided on the spacer 11 or the side plate 10 to prevent loosening or falling off during use.

[0046] In one embodiment of the present invention, Figure 1 As shown, the clamping structure 12 is arranged at the edge of the side plate 10. The edge is the connecting part of the side plate 10 and the spacer 11. The clamping structure 12 is arranged at the edge of the side plate 10, so that the assembly and disassembly process is more intuitive and convenient. During assembly, the operator can easily match the clamping structure 12 with the spacer 11 to achieve a quick and accurate connection. Similarly, when disassembly is required, it can also be easily operated from the edge, which improves work efficiency. In a specific embodiment, multiple clamping structures 12 can be provided. Multiple clamping structures 12 can provide stronger connection stability and reliability. The number of clamping structures can be determined according to the number of embedded parts, and the two are in a matching relationship. Compared with a single clamping structure, multiple clamping structures can disperse the force, reduce the risk of excessive force on a single point, and thus improve the stability of the overall structure. Multiple clamping structures also help to evenly distribute the force. When subjected to external force, multiple clamping structures can work together to disperse the force to each clamping structure, reducing local deformation or damage caused by uneven force. This helps to extend the service life of the product and reduce maintenance costs. In some other embodiments, the snap-fit ​​structure 12 may introduce a flexible design so that the snap-fit ​​structure 12 can have a certain deformation ability when subjected to force, thereby adapting to spacers 11 of different sizes and improving versatility.

[0047] In one embodiment of the utility model, the spacer 11 is provided with a limiting hole, and the limiting hole is the first embedded part 13 and / or the second embedded part 13. The limiting hole can ensure that the snap-on structure is accurately placed at a predetermined position. The design of the limiting hole can avoid performance problems or installation difficulties caused by position deviation, can effectively fix the position of the components, and increase the overall stability. Further, the limiting hole structure is not unique. In a specific embodiment of the utility model, the hole structure can be a through hole, and the through hole structure refers to a structure that passes through the spacer 11, and the blind hole structure does not pass through the spacer 11. The through hole structure usually has a certain width and depth range, which can accommodate the size change of the first fixing member 114 within a certain range. This makes the through hole structure more fault-tolerant during the assembly process, which can simplify the assembly process and reduce the difficulty of assembly. In another specific embodiment, it can also be a blind hole, and the blind hole structure has sealing properties and can also prevent medium leakage, thereby ensuring the stability of the internal pressure of the system and avoiding system instability or failure caused by pressure fluctuations. In an embodiment of the present invention, the embedded portion 13 may be a through hole structure, a blind hole structure, or a combination of the two, for example, through holes are used at both ends and a blind hole is used in the middle.

[0048] Furthermore, in a specific embodiment of the utility model, the first embedded portion 13 and the second embedded portion 13 are arranged relative to each other. When the two embedded portions 13 are arranged relative to each other, a complementary or locked relationship can be formed between them, and this structure makes the overall structure more stable and less prone to loosening or displacement. It also makes it easier to achieve precise alignment when docking or installing, reduces problems caused by position deviation, and improves assembly efficiency. In addition, the relative arrangement can also ensure uniform force and reduce structural damage caused by excessive force on a single point. In some other embodiments, due to space limitations or functional requirements, the embedded portion 13 can also be set in different positions or directions.

[0049] In one embodiment of the present invention, Figure 1 As shown, the first spacer 111 is provided with a first accommodating portion 16, and the second spacer 112 is provided with a second accommodating portion 16, and the first accommodating portion 16 and / or the second accommodating portion 16 are used to accommodate the side panel 10. The accommodating portion 16 provides a stable support and positioning for the side panel 10, so that the side panel 10 can be more firmly fixed on the spacer 11, thereby enhancing the stability of the overall structure. This helps to reduce structural loosening or deformation caused by vibration or external forces during use. In addition, by providing the accommodating portion 16, the space between the spacer 11 and the side panel 10 can be effectively utilized, avoiding unnecessary waste of space. This compact structural design makes the overall structure more compact and occupies less space, which helps to meet installation requirements under various space restrictions.

[0050] In a specific embodiment of the present invention, Figure 1 In the first direction shown, the side panels 10 are provided at both ends of the spacer 11, and the side panels 10 include a first side panel 10 and a second side panel 10, the first side panel 10 and the second side panel 10 are arranged relatively to each other, and the first direction is the extension direction of the spacer 11. In a specific embodiment of the present application, the two side panels 10 are arranged relatively to each other, and this design can form a stable frame to firmly clamp the spacer 11 in the middle. This structure can effectively resist external forces from all directions, improve the stability and bearing capacity of the overall structure, and help to extend the service life of the overall structure. The relative arrangement of the two side panels 10 can also simplify the installation process, making the connection between the spacer 11 and the side panel 10 more convenient.

[0051] Furthermore, the spacer 11 and the side panel 10 are arranged at a preset angle. Preferably, in a specific embodiment of the present utility model, the side panel 10 is arranged perpendicular to the spacer 11. That is to say, the plane of the side panel 10 intersects the spacer 11 perpendicularly in the first direction (i.e., the extension direction of the spacer 11). This vertical arrangement can ensure that the side panel 10 provides a stable support for the spacer 11 while maintaining the stability of the overall structure. In other embodiments, the side panel 10 and the spacer 11 may not be completely perpendicular, but there is a certain angle. This arrangement may be to meet specific structural requirements or functional requirements. For example, in some curved or inclined structures, the side panel 10 needs to adjust the angle accordingly to adapt to the extension direction of the spacer 11. At this time, the angle between the side panel 10 and the spacer 11 will be determined according to actual needs.

[0052] Further, in a specific embodiment of the present invention, the first accommodating portion 16 is connected to the first embedded portion 13, and the second accommodating portion 16 is connected to the second embedded portion 13. During the connection process, the accommodating portion 16 and the embedded portion 13 of the spacer 11 limit the side plate 10, so that the connection method is more reliable, and the side plate 10 can be prevented from falling out after the connection is completed, and the connection process will not cause damage to parts. In a specific embodiment of the present invention, the first spacer 111 has a first accommodating portion 16 and a first embedded portion 13, the second spacer 112 has a second accommodating portion 16 and a second embedded portion 13, and the side plate 19 has two clamping structures 12, which are respectively fixedly connected to the first embedded portion 13 and the second embedded portion, and are used to connect and fix the side plate 10. During installation, ensure that the position of the side plate 10 and the first spacer 111 and the second spacer 112 is correct, and then connect. During the connection process, the fixing parts on the first spacer 111 are correspondingly engaged, and the clamping structure 12 of the side plate 10 enters the embedded portion 13 of the first spacer 111 and the second spacer 112. The snap-fit ​​structure 12 and the embedded portion 13 ensure the alignment of the side plate 10 and the spacer 11, and the connection between the accommodating portion 16 and the embedded portion 13 forms a more stable overall structure. This connection design can ensure a close fit between the various components, reduce the possibility of loosening and displacement, and thus improve the stability and reliability of the overall structure. The two connections can evenly distribute the external force or pressure to the entire structure to avoid structural damage caused by excessive force at a single point. This optimization of force distribution helps to extend the service life of the structure and improve the bearing capacity. In other embodiments, the accommodating portion 16 and the embedded portion 13 are designed as detachable or replaceable modules, and a locking mechanism such as a buckle, bolt or locking device can be added to the connection between the accommodating portion 16 and the embedded portion 13 to improve the stability and reliability of the connection, or a high-strength material or structure can be used to enhance the bearing capacity of the connection to ensure that a stable connection can be maintained under high load or harsh environments.

[0053] In a specific embodiment of the present invention, Figure 1 As shown, the first receiving portion 16 is a first half groove, the first half groove opening is toward the side panel 10, the second receiving portion 16 is a second half groove, the second half groove opening is toward the side panel 10, the first half groove and the second half groove constitute a side panel groove, and the side panel is placed in the side panel groove. A half groove refers to a partially open groove design, which is used to accommodate and fix other components, such as the side panel 10. Figure 1As shown, the half-groove opening is arranged toward the side plate 10 in the first direction so that the side plate 10 can be conveniently inserted and fixed. The shapes of the first half-groove and the second half-groove are not limited, and different shapes and sizes can be designed as needed to adapt to side plates 10 of different shapes and sizes. The first half-groove and the second half-groove can be connected after being spliced, and the receiving portion is arranged on the half-groove. When the two half-grooves are connected, the side plate 10 is inserted into the receiving portion and connected with the spacer, and there is no need to accurately align the entrance of each half-groove. This design simplifies the installation process and improves work efficiency. The connected half-groove visually forms a complete groove body, which enhances the integrity and aesthetics of the structure. In some cases, the structure may be slightly deformed due to temperature changes or loads. The connected half-groove can provide a certain deformation space, so that the side plate 10 has a certain room for movement in the groove, thereby reducing the stress concentration caused by deformation. However, in some specific application scenarios, it may be necessary for the two half-grooves to be disconnected, and each half-groove can be designed with an independent adjustment mechanism to adapt to side plates 10 of different specifications or installation requirements. The unconnected half-grooves can fix the side panels 10 in sections, so that the side panels 10 are subject to different constraints or supports at different positions. This design can optimize the force distribution of the side panels 10 and improve the stability of the structure. In some complex structures, the side panels 10 may need to assume different functions or connect different components. The unconnected half-grooves can easily realize functional zoning, so that each half-groove can be designed with different shapes, sizes or interfaces as needed.

[0054] In a specific embodiment of the present invention, Figure 2As shown, the embedded portion 13 has a guide edge for guiding the snap-on structure 12 to be inserted into the embedded portion 13. Further, in this embodiment, the embedded portion 13 of the spacer 11 is provided with a second guide edge 15 of the side plate 10 and / or a first guide edge 14 of the side plate 10 on one side facing the side plate 10, so as to guide the snap-on structure 12 of the side plate 10 to be inserted into the embedded portion 13. Among them, the first guide edge and the second guide edge can be arranged at an angle to improve the installation efficiency. Specifically, in one embodiment, the second guide edge 15 of the side plate 10 is usually arranged on both longitudinal sides of the embedded portion 13, that is, the edge extending along the length direction of the side plate 10. The guide edge can be designed as a bevel, an arc surface or a gradually narrowing notch to provide a smooth insertion path to guide the snap-on structure 12 to move in the correct direction. The main function of the second guide edge 15 is to ensure that the side plate 10 is inserted along the correct length direction to prevent the side plate 10 from being offset or tilted during the insertion process. In another example, the first guide edge 14 of the side panel 10 is located on both lateral sides of the embedded portion 13, that is, along the width direction of the side panel 10, and the width direction is perpendicular to both D1 and D2. These guide edges can also be designed as bevels, arc surfaces or notches so that the snap-on structure 12 can be easily aligned and inserted. The function of the first guide edge 14 is to ensure that the position of the side panel 10 in the width direction is accurate when it is inserted into the embedded portion 13, and to ensure the matching degree between the snap-on structure 12 and the embedded portion 13. When setting these guide edges, wear-resistant and durable materials need to be selected to ensure their stability and durability during use. The design of the guide edges should facilitate the smooth insertion of the side panel 10, while avoiding excessive resistance or friction during the assembly process. By setting these guide edges, the accuracy and efficiency of the assembly between the side panel 10 and the spacer 11 can be improved, and errors and damage during the assembly process can be reduced, thereby improving the stability and reliability of the entire structure.

[0055] like Figure 4As shown, in a specific embodiment of the utility model, after the side plate 10 and the spacer 11 are fixed, there is a gap between the side plate 10 and the spacer 11, and the maximum width of the gap in the second direction is d, and d satisfies: 0.3mm≤d≤0.6mm. Since the clamping structure 12 is the first fixing member 114 of the side plate 10, the side plate 10 will have a gap. When the clamping structure 12 is inserted into the embedded part 13, the gap cannot be completely covered by the spacer 11, and there will be the gap, and the maximum width of the gap in the second direction is d. If the value of the gap d is too small, that is, d≤0.3mm, it may cause the connection yield to decrease. This is because a too small gap means that the fit between the clamping structure 12 and the embedded part 13 is too tight, and there may be assembly difficulties or inadequate assembly. During the assembly process, slight deviations or errors may cause the clamping structure 12 to be unable to be smoothly inserted into the embedded part 13, thereby affecting the overall connection effect. In addition, a too small gap may also increase friction and wear during the assembly process, further reducing the buckle yield. On the contrary, if the value of the gap d is too large, that is, d ≥ 0.6 mm, the spacer 11 may shake. An excessively large gap means that the fit between the snap-fit ​​structure 12 and the embedded portion 13 is too loose and cannot provide sufficient restraint and support. In actual use, this shaking may cause the position of the spacer 11 to be unstable, and may even become loose or fall off. This will not only affect the stability and reliability of the overall structure, but may also pose a potential risk to the normal operation of the equipment.

[0056] In a specific embodiment of the present invention, the spacer 11 includes a fixing member, the first spacer 111 includes a first fixing member 114 and a second fixing member 113, the second spacer 112 includes a third fixing member 113 and a fourth fixing member 114, the first fixing member 114 corresponds to the third fixing member 113, the second fixing member 113 corresponds to the fourth fixing member 114, and is used to cooperate and fix the first spacer 111 and the second spacer 112. In a specific embodiment of the present invention, the first fixing member 114 and the fourth fixing member 114 are both convex structures, the second fixing member 113 and the third fixing member 113 are corresponding groove structures, and the setting of the convex and groove can simplify the fixing effect.

[0057] Furthermore, in a specific embodiment of the utility model, a plurality of first fixing members 114 and a plurality of second fixing members 113 are provided on the first spacer 111, and a plurality of third fixing members 113 and a plurality of fourth fixing members 114 are provided on the second spacer 112, the first fixing member 114 and the fourth fixing member 114 are groove structures, the second fixing member 113 and the third fixing member 113 are convex structures, the number of the first fixing member 114 and the second fixing member 113 is the same, and the number of the third fixing member 113 and the fourth fixing member 114 is the same. The combination of the convex structure and the groove structure makes it easier to align the first spacer 111 and the second spacer 112 when connected. The convex part can be naturally inserted into the groove, which simplifies the assembly process, and the assembly process between the spacers 11 can be carried out quickly, which improves production efficiency. In addition, the distribution of multiple fixing members makes the connection between the spacers 11 more uniform, reducing the risk of deformation or breakage caused by uneven force. The tight combination of the protrusions and the grooves can effectively prevent the spacer 11 from loosening due to vibration or external force during use. By adjusting the number and distribution of multiple protrusions and grooves, it can adapt to different application scenarios and connection requirements and improve the flexibility of the design.

[0058] Furthermore, in a specific embodiment of the present invention, the first fixing member 114 on the first spacer 111 is arranged at intervals with the second fixing member 113 on the first spacer 111, and the third fixing member on the second spacer 112 is arranged at intervals with the fourth fixing member 114 on the second spacer 112. The design of the interval arrangement further optimizes the force distribution and enhances the structural stability. The interval arrangement allows the fixing members to appear alternately on the spacer 11, so that when subjected to external force, the force can be more evenly dispersed in various parts of the spacer 11, rather than concentrated in a specific area. This helps to reduce the risk of structural damage or failure caused by uneven force and improves the durability of the spacer 11; the interval-arranged fixing members can form an interlaced structure when connected, which enhances the connection strength between the spacers 11 and improves the stability of the entire structure. This stability is particularly important when subjected to vibration, impact or external force, and can ensure the integrity and functionality of the structure.

[0059] In a specific embodiment of the utility model, the steps for fixing the spacer and the side plate are as follows: First, the first spacer 111 and the second spacer 111 need to be pressed downward so that the first fixing member 114 part can smoothly enter the third fixing member 113 part, and the fourth fixing member 114 part can smoothly enter the second fixing member 113 part. At this time, the interaction force of the fixings will play a fixing role, tightly connecting the first spacer 111 and the second spacer 112 together. This design not only simplifies the assembly process and improves the assembly efficiency, but also ensures the connection stability and reliability between the spacers 11. In practical applications, this matching method can effectively resist external vibration and impact and maintain the stability of the internal structure of the battery pack. In addition, the design of the fixing also has a certain fault tolerance. Even if there is a certain deviation in the assembly process, the structure of the fixing can be adaptively adjusted to a certain extent to ensure the correct connection between the spacers 11. This fault tolerance not only reduces the difficulty of assembly, but also improves the success rate of assembly.

[0060] In a specific embodiment of the present invention, the spacer 11 includes a connection area and a pole ear clamping area, the first fixing member 114 and the second fixing member 113 are arranged in the connection area, and the connection area is adapted to connect the first spacer 111 and the second spacer 112. The connection area is specially designed to connect the first spacer 111 and the second spacer 112. It may include a connection structure, a fixing member or other necessary mechanical interfaces to ensure that the two spacers 11 can be stably and reliably connected together. The pole ear clamping area is a part designed to clamp or fix the pole ear.

[0061] Furthermore, in a specific embodiment of the utility model, the connection area is connected to the clamping ear areas at both ends, and the spacers are firmly connected by arranging the connection area and the clamping ear area, which can effectively improve the stability of the entire structure. This stability is crucial for the battery cell, especially when the battery cell is long. A stable connection can ensure that the battery cell is not prone to loosening or breaking during use, thereby extending the service life of the battery cell. The connection area not only plays a connecting role, but also strengthens the entire structure. It can tightly combine the clamping ear areas at both ends of the battery cell to form a more solid overall structure, thereby improving the overall strength and impact resistance of the battery cell.

[0062] In a specific embodiment of the utility model, the two ends of the spacer 11 are connection areas, and the middle is a clamping ear area. In the case that the spacer 11 is long, additional connection areas can be added to the spacer 11. These connection areas can be designed to be the same or similar to the connection areas at the two ends, and are used to connect additional spacer 11 parts or strengthen the stability of the entire structure. This design can reduce the bending or deformation that may occur when the long spacer is subjected to force, thereby improving the rigidity of the overall structure. In addition, in other embodiments, the clamping ear area may be on one side of the spacer 11 or off-center, or multiple clamping ear areas may be set at different positions to meet the need to clamp multiple ears at the same time, and it is necessary to add connection areas at both ends of each clamping ear area.

[0063] This specific implementation case also provides a battery, including a fixing assembly, the battery also includes a shell and a pole core, the fixing assembly is used to fix the pole core, and the shell contains the fixing assembly and the pole core. In a specific embodiment of the utility model, the spacer 11 and the side plate 10 of the fixing assembly can effectively fix the pole core to prevent it from moving or vibrating during operation. This stability ensures the compactness and stability of the internal structure of the battery, avoids the degradation of battery pack performance or safety hazards caused by the change of the pole core position, and the design of the spacer 11 and the side plate 10 can optimize the space utilization of the battery pack. By precisely controlling the size and shape of the spacer 11 and the side plate 10, the gap inside the battery pack can be minimized, the arrangement density of the pole core can be increased, and the energy density and capacity of the battery pack can be increased. They can also protect the pole core from external physical impact and damage, and reduce the risk of damage to the battery pack when subjected to external forces. At the same time, the spacer 11 and the side plate 10 can also prevent direct contact between the pole cores and reduce the occurrence of safety hazards such as short circuits. Finally, by using the spacer 11 and the side plate 10 to fix the pole core, the manufacturing and assembly process of the battery pack can also be simplified. The standardized design of the spacer 11 and the side plate 10 makes the assembly of the battery pack more convenient and quick, thereby improving the production efficiency.

[0064] This specific implementation case also provides a battery pack, which includes the above-mentioned fixing assembly.

[0065] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A fixing assembly for fixing a battery core tab, characterized in that: The fixing assembly includes a side plate and a spacer, the spacer is adapted to fix the pole core pole ear, the spacer includes a first spacer and a second spacer, the first spacer is connected to the second spacer, and the side plate includes a clamping structure; Wherein, the first spacer is provided with a first embedded portion, the clamping structure is connected to the first embedded portion, and / or the second spacer is provided with a second embedded portion, the clamping structure is connected to the second embedded portion, so as to fix the side plate and the spacer.

2. The fixing assembly according to claim 1, characterized in that: The clamping structure is arranged at the edge of the side plate.

3. The fixing assembly according to claim 1, characterized in that: The spacer is provided with a limiting hole, and the limiting hole is the first embedded part and / or the second embedded part.

4. The fixing assembly according to claim 1, characterized in that: The first spacer is provided with a first embedded portion, and the second spacer is provided with a second embedded portion, wherein the first embedded portion and the second embedded portion are arranged opposite to each other, and the clamping structure is connected to the first embedded portion and the second embedded portion respectively.

5. The fixing assembly according to claim 1, characterized in that: The first spacer is provided with a first accommodating portion, and the second spacer is provided with a second accommodating portion. The first accommodating portion and / or the second accommodating portion are used to accommodate part of the side plate.

6. The fixing assembly according to claim 1, characterized in that: Along the first direction, the side plates are provided at both ends of the spacer, the side plates include a first side plate and a second side plate, the first side plate and the second side plate are arranged opposite to each other, and the first direction is the extension direction of the spacer.

7. The fixing assembly according to claim 5, characterized in that: The first accommodating portion is connected to the first embedding portion, and the second accommodating portion is connected to the second embedding portion.

8. The fixing assembly according to claim 5, characterized in that: The first accommodating portion is a first half groove, the first half groove opens toward the side plate, the second accommodating portion is a second half groove, the second half groove opens toward the side plate, the first half groove and the second half groove constitute a side plate groove, and the side plate is placed in the side plate groove.

9. The fixing assembly according to claim 8, characterized in that: The side plate groove has a guide edge for guiding the clamping structure to connect the first embedded portion and the second embedded portion.

10. The fixing assembly according to claim 1, characterized in that: After the side plate and the spacer are fixed, there is a gap between the side plate and the spacer, and the minimum length of the gap in the second direction is d, and d satisfies: 0.3mm≤d≤0.6mm, and the second direction is the same as the extension direction of the side plate.

11. The fixing assembly according to claim 1, characterized in that: The spacer includes a fixing member, the first spacer includes a first fixing member and a second fixing member, the second spacer includes a third fixing member and a fourth fixing member, the first fixing member corresponds to the third fixing member, and the second fixing member corresponds to the fourth fixing member, which are used to cooperate and fix the first spacer and the second spacer.

12. The fixing assembly according to claim 11, characterized in that: The spacer includes a connection area and a clamping ear area, the fixing member is arranged in the connection area, and the connection area is adapted to connect the first spacer and the second spacer.

13. The fixing assembly according to claim 12, characterized in that: The electrode-clamping ear regions are disposed at both ends of the connection region.

14. The fixing assembly according to claim 11, characterized in that: The first spacer is provided with a plurality of the first fixing members and a plurality of the second fixing members, the second spacer is provided with a plurality of the third fixing members and a plurality of the fourth fixing members, the first fixing member and the fourth fixing member are groove structures, the second fixing member and the third fixing member are protrusion structures, the first fixing member and the second fixing member are the same in number, and the third fixing member and the fourth fixing member are the same in number.

15. A battery, characterized in that: The battery comprises a fixing assembly according to any one of claims 1 to 14, and further comprises a shell and a pole core, wherein the fixing assembly is used to fix the pole core, and the shell accommodates the fixing assembly and the pole core.

16. A battery pack, characterized in that: The battery pack includes the battery according to claim 15.

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