Reinforcing structure and battery box

Abstract

The utility model relates to the technical field of batteries, and discloses a reinforcing structure and a battery box, and the reinforcing structure has a first direction, a second direction and a third direction which are intersected pairwise, is suitable for fixing a connector on a fixed beam, and comprises a connecting part and a reinforcing part. The connecting part is suitable for penetrating through the fixed beam and is suitable for being connected with the fixed beam, a sinking groove is formed in the first end of the connecting part, a connecting hole is formed in the second end of the connecting part, the connecting hole is communicated with the sinking groove, and the first end and the second end of the connecting part are distributed in the first direction. The reinforcing part is arranged at the first end of the connecting part, the reinforcing part is provided with a channel, the channel is suitable for embedding of the connector, the channel, the sinking groove and the connecting hole are sequentially communicated in the first direction, and the connecting hole is suitable for extending of the output end of the connector. The number of parts required for mounting the reinforcing structure of the battery box body can be reduced, and the mounting efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of battery technology, specifically to a reinforced structure and battery box. Background Technology

[0002] The battery housing, as a crucial component of the battery pack, is responsible for housing the batteries, their electrical connections, and control units. During the design process, in addition to meeting the installation requirements of external interfaces, it is essential to ensure that the internal arrangement of the batteries and electrical connection control units is compatible with the external electrical connections and overall layout. Considering the space constraints and cost control requirements of the battery pack, the length of electrical connections is typically minimized within a reasonable range to reduce connection resistance or the number of components, thereby improving the overall performance of the battery pack and reducing costs.

[0003] In practical applications, the electrical connections of battery packs are typically arranged on the same side, on both sides, or in the center. When the electrical connection structure is arranged in the center, the batteries are placed on both sides. This necessitates reducing or eliminating the height of the central fixing beam of the battery box to provide installation space for the electrical connections and control unit. This arrangement causes significant deformation in the middle of the front and rear fixing beams of the battery box under the expansion force of the battery, resulting in stress concentration at the welds on the left and right sides, which can easily lead to weld cracking. Therefore, a central reinforcing structure is needed to reduce the deformation in the middle of the front and rear fixing beams, thereby preventing cracking of the left and right welds.

[0004] However, the front fixed beam requires through holes for connectors and mounting holes, as well as blind hole sealing for riveting. The intermediate reinforcing structure needs to be welded to the inside of the front fixed beam and requires through holes for copper busbars. This design is complex, involves many parts, and the operation of the press-fit nuts requires larger openings to accommodate the jig's operating space, which can easily lead to sealing failure, relying heavily on sealant. Furthermore, to prevent aluminum shavings generated during machining of the front fixed beam from affecting the internal electrical components of the battery pack, it is also necessary to seal around the openings in the profile, resulting in a large quantity of materials, complex processing, and high costs. Utility Model Content

[0005] In view of this, this application provides a reinforcing structure and a battery box to solve the problems of complex installation and a large number of required parts for the reinforcing structure of the battery box.

[0006] In a first aspect, this application provides a reinforcing structure having intersecting first, second, and third directions, and adapted to fix a connector to a fixed beam of a battery box, including a connecting portion and a reinforcing portion. The connecting portion is adapted to penetrate the fixed beam and to connect with the fixed beam. A first end of the connecting portion is provided with a recess, and a second end of the connecting portion is provided with a connecting hole communicating with the recess. The first and second ends of the connecting portion are distributed along the first direction. The reinforcing portion is disposed at the first end of the connecting portion and is provided with a channel adapted for embedding the connector. The channel, the recess, and the connecting hole are sequentially connected along the first direction, and the connecting hole is adapted for the output end of the connector to extend out.

[0007] Beneficial effects: The connection section facilitates connector installation and, by penetrating the fixed beam, effectively disperses the impact of battery expansion force on the fixed beam, significantly improving the fixed beam's resistance to deformation and the overall structural stability, thereby extending the battery box's lifespan and reducing maintenance costs. The reinforcing section connected to the connection section strengthens the structure and reduces deformation of the fixed beam. The recessed groove and channel design allows for precise connector insertion, while the connection holes ensure smooth and unobstructed electrical connections. This installation method, combining the reinforcing section and the connection section, eliminates the cumbersome installation methods of existing technologies, reducing the number of parts required for the battery box's reinforcing structure while maintaining the fixed beam's strength, thus improving installation efficiency.

[0008] In an alternative embodiment, a folded edge structure is further provided at the first end of the connecting portion, the folded edge structure being connected to the connecting portion at one end along the second direction and / or the third direction (Z), the folded edge structure being adapted to be connected to the outer wall of the fixed beam along the first direction toward the reinforcing portion.

[0009] Beneficial effects: The introduction of the folded edge structure not only enhances the connection strength between the reinforcing structure and the fixed beam, but also forms a more enclosed and stable structural system. This design not only improves the overall rigidity and impact resistance of the battery box, but also effectively prevents the potential impact of the external environment on the internal electrical components of the battery box.

[0010] In an optional embodiment, a first reinforcing rib is further included, which is connected to the outer side wall of the reinforcing portion along the second direction, and the first reinforcing rib is connected to the folded edge structure, and the first reinforcing rib and the outer side wall of the reinforcing portion along the second direction are spaced apart.

[0011] Beneficial effects: The first reinforcing rib further enhances the strength of the reinforced structure, directly increasing its load-bearing capacity and enabling it to better resist external pressure and vibration. This allows the reinforced structure to maintain stable performance under complex operating conditions, providing more reliable protection for the battery box. Furthermore, the spacing between the first reinforcing rib and the outer wall of the reinforced section allows for selection of the specific spacing distance based on actual layout requirements, creating a certain misalignment between the connecting part and the reinforced section in the second direction, thus facilitating the matching of related components.

[0012] In an optional embodiment, a second reinforcing rib is further included, at least one of which is disposed on the inner wall of the channel and extends along the first direction.

[0013] Beneficial effects: The design of the second reinforcing rib optimizes the structural strength of the reinforcing part, ensures the overall rigidity of the reinforcing part, and ensures the reliability and safety of the electrical connection.

[0014] In one alternative embodiment, along the third direction, the sink has a first wall, the channel has a second wall on the same side as the first wall, the first wall and the second wall are connected by a stepped wall, one end of the second reinforcing rib along the third direction is connected to the second wall, one end of the second reinforcing rib along the first direction is connected to the stepped wall, and the size of the second reinforcing rib along the third direction does not exceed the size of the stepped wall.

[0015] Beneficial effects: By connecting the second reinforcing rib to the step wall and the second wall, the structural strength can be further increased, and the dimension of the second reinforcing rib in the third direction does not exceed the step wall, that is, the second reinforcing rib does not obstruct the space of the groove, thus facilitating the installation of the connector.

[0016] In an alternative embodiment, the stepped wall is adapted to abut against the outer wall of the fixed beam toward the reinforcement in the first direction.

[0017] Beneficial effect: The step wall abuts against the fixed beam, which allows the reinforcement to act more effectively on the fixed beam, thus reducing the deformation of the fixed beam.

[0018] In an optional embodiment, the device further includes mounting blocks disposed on the inner bottom wall of the sink along the first direction away from the reinforcing portion, and multiple mounting blocks are provided, which are arranged circumferentially along the connecting hole, and the mounting blocks are adapted to connect with the connector.

[0019] Beneficial effects: The mounting block can be connected and fixed to the plug-in, thereby achieving a stable connection between the reinforced structure and the plug-in.

[0020] In an alternative embodiment, an adjustment groove is further included, which is disposed at the first end of the connecting portion and located on one side of the settling groove along the second direction.

[0021] Beneficial effects: The setting of the adjustment groove can make the connection part and the reinforcement part misaligned according to the actual layout requirements, thereby facilitating the matching of related components.

[0022] Secondly, this application also provides a battery box, including a fixing beam and the reinforcing structure.

[0023] The connecting part of the reinforcing structure passes through the fixed beam and is connected to the fixed beam.

[0024] Beneficial Effects: By introducing the aforementioned reinforcing structure, the battery box significantly improves the overall structural strength and stability while maintaining a lightweight design. The robust connection between the reinforcing structure and the fixed beam not only reduces the risk of deformation and weld cracking caused by battery expansion forces but also enhances the battery box's resistance to impact and vibration under complex operating conditions. This design not only extends the battery box's service life but also reduces maintenance and replacement costs due to malfunctions.

[0025] In one alternative embodiment, the distance by which the second end of the connecting portion extends from the fixed beam is A, wherein 3mm ≤ A ≤ 7mm.

[0026] Beneficial effects: By limiting the specific distance the second end of the connector extends from the fixed beam, this design ensures a stable connection between the reinforced structure and the fixed beam while avoiding structural redundancy and potential safety hazards caused by excessive extension. Furthermore, this design facilitates subsequent installation and maintenance, improving the overall maintainability and reliability of the battery box. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of a reinforcing structure according to an embodiment of this application;

[0029] Figure 2 This is a schematic diagram of the structure of the second reinforcing rib in the embodiment of this application;

[0030] Figure 3 This is a structural diagram of the reinforced structure and the fixed beam in the assembled state in the embodiments of this application;

[0031] Figure 4 This is a structural schematic diagram showing the relative positions of the connecting part and the fixed beam in an embodiment of this application;

[0032] Figure 5 This is a schematic diagram of the via structure in an embodiment of this application.

[0033] Explanation of reference numerals in the attached figures:

[0034] 1. Fixed beam; 2. Reinforcing part; 3. Connecting hole; 4. Connecting part; 5. Folded edge structure; 6. First reinforcing rib; 7. Second reinforcing rib; 8. Through hole; 9. Adjusting groove; 10. Channel; 11. Mounting block; 12. Step wall; 13. Settling groove; X, First direction; Y, Second direction; Z, Third direction. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, 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 some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0036] The following is combined with Figures 1 to 5 This describes an embodiment of the present application.

[0037] According to an embodiment of this application, in one aspect, a first aspect is provided: this application provides a reinforcing structure having intersecting first directions X, second directions Y, and third directions Z, and is suitable for fixing a connector to a fixing beam 1 of a battery box, including a connecting portion 4 and a reinforcing portion 2. The connecting portion 4 is suitable for penetrating through the fixing beam 1 and for connecting to the fixing beam 1. A groove 13 is provided at the first end of the connecting portion 4, and a connecting hole 3 is provided at the second end of the connecting portion 4, communicating with the groove 13. The first and second ends of the connecting portion 4 are distributed along the first direction X. The reinforcing portion 2 is provided at the first end of the connecting portion 4, and the reinforcing portion 2 is provided with a channel 10, which is suitable for embedding the connector. The channel 10, the groove 13, and the connecting hole 3 are sequentially connected along the first direction X, and the connecting hole 3 is suitable for the output end of the connector to extend out.

[0038] In this embodiment, the connecting part 4 not only facilitates the installation of connectors but also effectively disperses the impact of battery expansion force on the fixed beam 1 by penetrating it, significantly improving the deformation resistance of the fixed beam 1 and the overall structural stability, thereby extending the service life of the battery box and reducing maintenance costs. The reinforcing part 2, connected to the connecting part 4, serves to strengthen the structure and reduce deformation of the fixed beam 1. The design of the groove 13 and the channel 10 allows for precise insertion of the connectors, while the connecting hole 3 ensures smooth and unobstructed electrical connections. By using the reinforcing part 2 and the connecting part 4 in conjunction, the cumbersome installation method of the prior art is eliminated, reducing the number of parts required for the reinforcement structure of the battery box while ensuring the strength of the fixed beam 1, thus improving installation efficiency.

[0039] In one embodiment, a folded edge structure 5 may also be provided, which is disposed at the first end of the connecting part 4. The end of the folded edge structure 5 along the second direction Y and / or the third direction Z is connected to the connecting part 4. The folded edge structure 5 is adapted to be connected to the outer wall of the fixed beam 1 along the first direction X toward the reinforcing part 2.

[0040] Optionally, the folded structure 5 and the fixed beam 1 can be welded along their joint, or they can be welded through to each other in the first direction.

[0041] Optionally, the folded edge structure 5 can extend to both sides or one side of the connecting part 4 in the second direction Y or the third direction Z, or it can extend fully around the connecting part 4 in the second direction Y and the third direction Z respectively, so that it can abut against the fixed beam 1, thereby achieving a seal and facilitating welding and fixing.

[0042] Optionally, the reinforcing part 2, the connecting part 4, and the folded structure 5 are integrally formed components.

[0043] In this embodiment, the introduction of the folded edge structure 5 not only enhances the connection strength between the reinforcing structure and the fixed beam 1, but also forms a more enclosed and stable structural system. This design not only improves the overall rigidity and impact resistance of the battery box, but also effectively prevents the potential impact of the external environment on the internal electrical components of the battery box.

[0044] In one embodiment, a first reinforcing rib 6 is further included, connected to the outer side wall of the reinforcing part 2 along the second direction, and the first reinforcing rib 6 is connected to the folded edge structure 5. The first reinforcing rib 6 and the outer side wall of the reinforcing part 2 are spaced apart along the second direction. Specifically, the first reinforcing rib 6 and the reinforcing part 2 are connected by a connecting plate. The provision of the first reinforcing rib 6 and / or the connecting plate further enhances the strength of the reinforced structure. The connecting plate acts as a bridge between the first reinforcing rib 6 and the reinforcing part 2, ensuring a tight connection and coordinated operation between the two. This multi-layered and multi-dimensional reinforcement design enables the reinforced structure to maintain stable performance under complex working conditions, providing more reliable protection for the battery box.

[0045] Optionally, the first reinforcing rib 6, the reinforcing part 2, and the connecting plate are integrally formed components.

[0046] In this embodiment, the first reinforcing rib 6 directly enhances the load-bearing capacity of the reinforcing part 2, enabling it to better resist external pressure and vibration. This allows the reinforced structure to maintain stable performance under complex working conditions, providing more reliable protection for the battery box. Furthermore, the first reinforcing rib 6 is spaced apart from the outer wall of the reinforcing part 2, and the specific gap size can be set according to actual layout requirements, without limitation here. This allows for a certain misalignment between the connecting part 4 and the reinforcing part 2, facilitating the matching of related components.

[0047] In one embodiment, a second reinforcing rib 7 is further included, at least one of which is provided. The second reinforcing rib 7 is disposed on the inner sidewall of the channel 10, and the second reinforcing rib 7 is configured as a plate-like structure, extending along the first direction X.

[0048] Optionally, multiple second reinforcing ribs 7 are provided, and the multiple second reinforcing ribs 7 are spaced apart along the circumferential direction of the channel 10.

[0049] Optionally, the second reinforcing rib 7 can be configured as a plate-like structure.

[0050] Optionally, the second reinforcing rib 7 and the reinforcing part 2 can be welded or integrally formed.

[0051] In this embodiment, the design of the second reinforcing rib 7 optimizes the structural strength of the reinforcing part 2, ensures the overall rigidity of the reinforcing part, and ensures the reliability and safety of the electrical connection.

[0052] In one embodiment, along the third direction Z, the sink 13 has a first wall, the channel 10 has a second wall on the same side as the first wall, the first wall and the second wall are connected by a stepped wall 12, one end of the second reinforcing rib 7 along the third direction Z is connected to the second wall, one end of the second reinforcing rib 7 along the first direction X is connected to the stepped wall 12 and the size of the second reinforcing rib 7 along the third direction Z does not exceed the size of the stepped wall 12.

[0053] In this embodiment, by connecting the second reinforcing rib 7 to the step wall 12 and the second wall, the structural strength can be further increased, and the dimension of the second reinforcing rib 7 in the third direction does not exceed the step wall 12, that is, the second reinforcing rib 7 does not obstruct the space of the recess 13, thereby facilitating the installation of the connector.

[0054] In one embodiment, the stepped wall 12 is adapted to abut against the outer wall of the fixed beam 1 toward the reinforcing portion 2 in the first direction X.

[0055] In this embodiment, the step wall 12 abuts against the fixed beam 1, which allows the reinforcing part 2 to act more effectively on the fixed beam 1, thereby reducing the deformation of the fixed beam 1.

[0056] In one embodiment, a mounting block 11 is further included, disposed on the inner bottom wall of the settling tank 13 away from the reinforcing part 2 along the first direction X. Multiple mounting blocks 11 are provided, arranged circumferentially along the connecting hole 3, and the mounting blocks 11 are adapted to connect with a connector. It is particularly noteworthy that the bottom wall and the peripheral wall of the settling tank 13 can be separately disposed.

[0057] In this embodiment, the mounting block 11 can be connected and fixed to the connector, thereby achieving a stable connection between the reinforced structure and the connector.

[0058] In one embodiment, the end face of the reinforcing part 2 facing away from the connecting part 4 along the first direction X is obliquely intersecting the first direction X, and the end faces of the first reinforcing rib 6 and the second reinforcing rib 7 facing away from the connecting part 4 along the first direction X are flush with the end face of the reinforcing part 2 facing away from the connecting part 4 along the first direction X.

[0059] Optionally, the end face of the connecting plate may be flush with the end face of the reinforcing part 2 facing away from the connecting part 4 along the first direction X.

[0060] In this embodiment, the inclined surface design of the reinforcing part 2 makes the insertion process of the connector smoother and less strenuous, while also improving the accuracy and reliability of the installation, ensuring that the connector can be accurately embedded in the groove, and avoiding electrical connection problems caused by installation deviation.

[0061] In one embodiment, an adjustment groove 9 is further included. The adjustment groove 9 is disposed at the first end of the connecting portion 4 and is located on one side of the sink 13 along the second direction Y. The adjustment groove 9 and the sink 13 may share a common bottom wall.

[0062] In this embodiment, the adjustment groove 9 can be set according to the actual layout requirements, so that the connecting part 4 and the reinforcing part 2 are misaligned in the second direction, thereby facilitating the matching of the relevant components.

[0063] According to an embodiment of this application, another aspect provides a battery box, including a fixed beam 1 and a reinforcing structure.

[0064] The connecting part 4 of the reinforced structure passes through the fixed beam 1 and is connected to the fixed beam 1.

[0065] In this embodiment, by introducing the aforementioned reinforcing structure, the battery box significantly improves the overall structural strength and stability while maintaining a lightweight design. The robust connection between the reinforcing structure and the fixed beam 1 not only reduces the risk of deformation and weld cracking caused by battery expansion forces but also enhances the battery box's resistance to impact and vibration under complex operating conditions. This design not only extends the battery box's service life but also reduces maintenance and replacement costs due to malfunctions.

[0066] In one embodiment, the distance by which the second end of the connecting part 4 extends from the fixed beam 1 is A, where 3mm≤A≤7mm.

[0067] Optionally, the second end of the connecting part 4 extends 5 mm from the fixed beam 1.

[0068] In this embodiment, the specific distance range from which the second end of the connecting part 4 extends from the fixed beam 1 is specified. This design ensures a stable connection between the reinforcing structure and the fixed beam 1 while avoiding structural redundancy and potential safety hazards caused by excessive extension. Furthermore, this design facilitates subsequent installation and maintenance, improving the overall maintainability and reliability of the battery box.

[0069] In one embodiment, the fixed beam 1 is provided with a through hole 8, the connecting part 4 passes through the through hole 8, the outer peripheral surface of the connecting part 4 abuts against the inner wall of the through hole 8, and the connecting part 4 and the folded edge structure 5 of the reinforcing structure are connected to the fixed beam 1.

[0070] Optionally, the connecting part 4 is welded to the wall of the through hole 8.

[0071] In this embodiment, the via 8 allows the reinforcing structure to be precisely aligned and securely installed on the fixed beam 1. The tight contact between the connecting part 4 and the inner wall of the via 8 not only ensures the accuracy and stability of the installation but also improves the overall sealing performance of the battery box, preventing metal shavings from falling into the battery box. The folded edge structure 5 and the secure connection between the connecting part 4 and the fixed beam 1 together form a reliable support structure, further improving the overall rigidity and impact resistance of the battery box.

[0072] Although embodiments of this application have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of this application, and all such modifications and variations fall within the scope defined by the appended claims.

Claims

1. A reinforcing structure, characterized by, A fixing beam (1) with a first direction (X), a second direction (Y) and a third direction (Z) intersecting each other, and adapted to fix a connector on a battery box, comprising: A connecting part (4) adapted to penetrate through the fixing beam (1) and adapted to be connected with the fixing beam (1), a first end of the connecting part (4) is provided with a sink (13), a second end of the connecting part (4) is provided with a connecting hole (3), the connecting hole (3) is in communication with the sink (13), wherein the first end and the second end of the connecting part (4) are distributed along the first direction (X); A reinforcing part (2) is provided at the first end of the connecting part (4), the reinforcing part (2) is provided with a channel (10), the channel (10) is adapted to embed the connector, the channel (10), the sink (13) and the connecting hole (3) are sequentially communicated along the first direction (X), and the connecting hole (3) is adapted to extend out of the output end of the connector.

2. The reinforcing structure of claim 1, wherein, Further comprising: A folding edge structure (5) is provided at the first end of the connecting part (4), one end of the folding edge structure (5) is connected with the connecting part (4) along the second direction (Y) and / or the third direction (Z), and the folding edge structure (5) is adapted to be connected with the outer wall of the fixing beam (1) along the first direction (X) towards the reinforcing part (2).

3. The reinforcing structure of claim 2, wherein, Further comprising: A first reinforcing rib (6) is connected with the outer side wall of the reinforcing part (2) along the second direction (Y), and the first reinforcing rib (6) is connected with the folding edge structure (5), and the first reinforcing rib (6) is spaced apart from the outer side wall of the reinforcing part (2) along the second direction (Y).

4. The reinforcing structure of claim 1, wherein, Further comprising: A second reinforcing rib (7) is provided with at least one, the second reinforcing rib (7) is arranged on the inner side wall of the channel (10), and the second reinforcing rib (7) extends along the first direction (X).

5. The reinforcing structure of claim 4, wherein, Along the third direction (Z), the sink (13) has a first wall, the channel (10) has a second wall located on the same side as the first wall, the first wall and the second wall are connected by a step wall (12), one end of the second reinforcing rib (7) along the third direction (Z) is connected to the second wall, one end of the second reinforcing rib (7) along the first direction (X) is connected to the step wall (12), and the size of the second reinforcing rib (7) along the third direction (Z) does not exceed the size of the step wall (12).

6. The reinforcing structure of claim 5, wherein, The step wall (12) is adapted to abut against the outer wall of the fixing beam (1) along the first direction (X) towards the reinforcing part (2).

7. The reinforcing structure of claim 1, wherein Further comprising: A mounting block (11) is arranged on the inner bottom wall of the sink (13) away from the reinforcing part (2) along the first direction (X), and the mounting block (11) is provided with a plurality of mounting blocks (11) arranged along the circumference of the connecting hole (3), and the mounting block (11) is adapted to be connected with the connector.

8. The reinforcing structure of claim 1, wherein, Further comprising: An adjusting groove (9) is arranged at the first end of the connecting part (4) and located on one side of the sink (13) along the second direction (Y).

9. A battery box characterized by Comprising: The fixing beam (1); The reinforcing structure according to any one of claims 1 to 8, wherein the connecting portion (4) of the reinforcing structure extends through the fixed beam (1) in the first direction (X) and is connected to the fixed beam (1).

10. The battery pack of claim 9, wherein, The second end of the connecting portion (4) extends from the fixed beam (1) by a length A, wherein 3 mm ≤ A ≤ 7 mm.

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