Battery pack and electric equipment
By setting protruding structures and embedded cavities on the horizontal and vertical side beams of the battery pack, and using a combination of fasteners, positioning blocks, and anti-misalignment blocks, the problem of misalignment in the connection between the horizontal and vertical side beams is solved, improving the structural stability and assembly accuracy of the battery pack, while reducing the weight of the side beams.
Patent Information
- Application Number
- CN202423159385.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-19
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2034-12-19
AI Technical Summary
In the existing battery pack housing structure, there are alignment deviations in the connection between the horizontal and vertical beams, resulting in poor stability.
Protruding structures and embedded cavities are set on the horizontal and vertical beams, and alignment and positioning are achieved through fasteners. The connection accuracy and reliability are improved by positioning blocks and anti-misalignment blocks.
This improves the structural stability of the battery pack, prevents misalignment of connections, ensures correct assembly, and reduces the weight of the side beams.
Smart Images
Figure CN223785236U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electric vehicle battery technology, specifically to battery packs and electrical equipment. Background Technology
[0002] As the electric vehicle market continues to expand, the demand for new energy batteries will also continue to grow. New energy batteries are often in the form of battery packs. For battery packs, the casing structure provides installation space and protection for the internal battery cells.
[0003] Existing box-type structures typically involve directly welding the transverse and longitudinal beams. However, this method results in alignment misalignment between the transverse and longitudinal beams, leading to poor stability of the box structure. Utility Model Content
[0004] In view of this, the present invention provides a battery pack and electrical equipment to solve the problem of poor stability of the box structure caused by the alignment deviation in the connection between the horizontal and vertical beams.
[0005] In a first aspect, this utility model provides a battery pack having intersecting first and second directions, comprising: a plurality of transverse beams along the first direction, the plurality of transverse beams being spaced apart; a plurality of longitudinal beams along the second direction, the plurality of longitudinal beams being spaced apart, each longitudinal beam being connected to its adjacent transverse beam, a first connecting end face being formed at the corresponding connection point of the transverse beam, and a second connecting end face being formed at the corresponding connection point of the longitudinal beam; a protruding structure disposed on one of the adjacent transverse beams and the longitudinal beam, the protruding structure being disposed on the first connecting end face or the second connecting end face; an embedding cavity formed on the other of the adjacent transverse beams and the longitudinal beam, the embedding cavity being formed on the first connecting end face or the second connecting end face, the protruding structure being embedded in the embedding cavity, and a through hole being formed on the beam with the embedding cavity, the through hole communicating with the embedding cavity; and a fixing member passing through the through hole and connected to the protruding structure.
[0006] Beneficial effects: By setting protruding structures on the horizontal or vertical beams, it is convenient to align and position them before connecting them, preventing the generation of unqualified products due to deviations or misalignments between the horizontal and vertical beams, thus improving the structural stability of the battery pack; by setting fasteners to connect the fasteners to the protruding structures, the connection reliability between the protruding structures and the embedded cavity is further improved.
[0007] In one optional embodiment, the protruding structure includes a number of positioning blocks, which are spaced apart. The embedding cavity includes a number of receiving slots, and the number of positioning blocks and receiving slots are embedded in a one-to-one correspondence.
[0008] Beneficial effects: By setting multiple positioning blocks, the positioning accuracy is further improved, the connection accuracy between the horizontal and vertical beams is ensured, and misalignment between the horizontal and vertical beams is further prevented.
[0009] In one alternative implementation, the plurality of positioning blocks are staggered relative to each other along the first direction, or the plurality of positioning blocks are staggered relative to each other along the second direction.
[0010] Beneficial effects: The positioning blocks are staggered, so when the protruding structure changes direction, the protruding configuration of the protruding structure is different from before, thus preventing workers from reversing the connection direction of the horizontal beam and the longitudinal beam, ensuring the correctness of the connection and assembly.
[0011] In one optional embodiment, the protruding structure further includes a mis-prevention block, which is spaced apart from the positioning block and is perpendicular to the protruding extension direction of the protruding structure. The positioning blocks have the same cross-sectional shape, while the mis-prevention block has a different cross-sectional shape than the positioning block.
[0012] Beneficial effect: By setting up anti-misalignment blocks, workers are prevented from connecting the transverse beams and longitudinal beams in the opposite direction, ensuring the correctness of the connection and assembly.
[0013] In one alternative implementation, the cross-sectional shape of the anti-misalignment block is triangular, trapezoidal, or polygonal, perpendicular to the protruding extension direction of the protruding structure.
[0014] In one optional embodiment, the protruding structure is disposed on the transverse beam, the embedded cavity is formed on the longitudinal beam, and the longitudinal beam has the through hole; the fastener passes through the through hole and is fixed in the protruding structure, or the fastener passes through the through hole and abuts against the protruding structure.
[0015] In one optional embodiment, the protruding structure is disposed on the longitudinal side beam, the embedded cavity is formed on the transverse side beam, and the transverse side beam has the through hole; the fixing member passes through the through hole and is fixed in the protruding structure, or the fixing member passes through the through hole and abuts against the protruding structure.
[0016] Beneficial effects: The cooperation between the fastener and the protruding structure achieves initial positioning of the horizontal and vertical beams before welding, further preventing misalignment between the horizontal and vertical beams.
[0017] In one alternative embodiment, a first hollowed-out groove is formed on the longitudinal beam.
[0018] Beneficial effect: By opening the first hollow groove in the longitudinal edge beam, it is beneficial to reduce the weight of the longitudinal edge beam, thereby reducing the weight of the box structure.
[0019] In one alternative embodiment, a second hollowed-out groove is provided on the transverse beam.
[0020] Beneficial effect: By opening a second hollow groove in the transverse beam, it is beneficial to reduce the weight of the transverse beam, thereby reducing the weight of the box structure.
[0021] Secondly, this utility model also provides an electrical device, including the aforementioned battery pack. Attached Figure Description
[0022] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in 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 utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0023] Figure 1 This is an exploded structural diagram of the transverse and longitudinal beams of an embodiment of the present utility model.
[0024] Figure 2 This is a schematic diagram of the transverse beam structure of an embodiment of the present utility model;
[0025] Figure 3 for Figure 2 Enlarged view of point A in the middle;
[0026] Figure 4 This is a schematic diagram of the longitudinal beam structure of an embodiment of the present utility model;
[0027] Figure 5 This is a schematic diagram of the battery pack structure according to an embodiment of the present invention.
[0028] Explanation of reference numerals in the attached figures:
[0029] 10. Horizontal beam; 11. Second hollow groove; 20. Longitudinal beam; 21. First hollow groove; 30. Protruding structure; 31. Positioning block; 32. Anti-misalignment block; 40. Embedded cavity; 41. Receiving groove; 50. Perforation; 60. Fixing element; X, First direction; Y, Second direction. Detailed Implementation
[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0031] The following is combined with Figures 1 to 5 The following describes embodiments of the present invention.
[0032] According to an embodiment of the present invention, in a first aspect, a battery pack is provided having intersecting first direction X and second direction Y, including a transverse beam 10, a longitudinal beam 20, a protruding structure 30, an embedded cavity 40, and a fixing member 60. Along the first direction X, multiple transverse beams 10 are provided, spaced apart. Along the second direction Y, multiple longitudinal beams 20 are provided, spaced apart. Each longitudinal beam 20 is connected to its adjacent transverse beam 10. A first connecting end face is formed at the corresponding connection point of the transverse beam 10, and a second connecting end face is formed at the corresponding connection point of the longitudinal beam 20. A protruding structure 30 is provided in one of the adjacent transverse beams 10 and longitudinal beams 20, and is provided on the first connecting end face or the second connecting end face. An embedded cavity 40 is formed in the other of the adjacent transverse beams 10 and longitudinal beams 20, and is provided on the first connecting end face or the second connecting end face. The protruding structure 30 is embedded in the embedded cavity 40. A through hole 50 is also provided on the beam with the embedded cavity 40, and the through hole 50 communicates with the embedded cavity 40. A fastener 60 passes through the through hole 50 and is connected to the protruding structure 30.
[0033] The battery pack using this embodiment, by providing a protruding structure 30 on the transverse beam 10 or the longitudinal beam 20, facilitates alignment and positioning before the transverse beam 10 and the longitudinal beam 20 are connected, preventing the generation of defective products due to deviations or misalignments between the transverse beam 10 and the longitudinal beam 20, thus improving the structural stability of the battery pack; by providing a fixing member to connect the fixing member to the protruding structure, the connection reliability between the protruding structure and the embedded cavity is further improved.
[0034] It should be noted that "multiple" refers to two or more.
[0035] Specifically, in this embodiment, there are two horizontal beams 10 and two vertical beams 20. The two horizontal beams 10 and the two vertical beams 20 are connected end to end to form an installation cavity, which is suitable for installing battery modules, etc.
[0036] Specifically, such as Figure 1As shown, in this embodiment, the protruding structure 30 is disposed on the first connecting end face at both ends of the transverse beam 10, and the embedded cavity 40 and the through hole 50 are formed on the second connecting end face at both ends of the longitudinal beam 20.
[0037] In other alternative embodiments, the protruding structure 30 may also be provided on the second connecting end face at both ends of the longitudinal side beam 20, and the corresponding embedded cavity 40 and through hole 50 are formed on the first connecting end face at both ends of the transverse side beam 10.
[0038] Specifically, the transverse beam 10 is welded to the longitudinal beam 20.
[0039] It should be noted that in related technologies, after welding the transverse beam 10 and the longitudinal beam 20, alignment deviations were found in their connection. This may be because there was a positional deviation between the transverse beam 10 and the longitudinal beam 20 before welding. Therefore, in this embodiment, a protruding structure 30 and an embedded cavity 40 are provided. Before welding, the protruding structure 30 is embedded into the embedded cavity 40 to ensure the alignment accuracy of the transverse beam 10 and the longitudinal beam 20.
[0040] It should be noted that the alignment deviation between the transverse beam 10 and the longitudinal beam 20 may also be due to the displacement of the transverse beam 10 or the longitudinal beam 20 caused by welding during the welding operation.
[0041] Understandably, during welding operations, the inner wall of the embedded cavity 40 limits the protruding structure 30, thereby preventing the transverse beam 10 or the longitudinal beam 20 from shifting due to welding.
[0042] In one embodiment, such as Figures 2 to 4 As shown, the protruding structure 30 includes positioning blocks 31, and several positioning blocks 31 are provided, spaced apart. The embedded cavity 40 includes several receiving grooves 41, and the positioning blocks 31 are embedded in the receiving grooves 41 in a one-to-one correspondence. By setting multiple positioning blocks 31, the positioning accuracy is further improved, ensuring the accuracy of the connection between the transverse beam 10 and the longitudinal beam 20, and further preventing misalignment between the transverse beam 10 and the longitudinal beam 20.
[0043] It is worth noting that the setting of multiple positioning blocks 31 can also make the assembly and connection construction process more standardized, reduce the complexity of assembly and connection, and improve the efficiency of assembly and connection.
[0044] In one embodiment, such as Figure 2 As shown, along the second direction Y, several positioning blocks 31 are staggered relative to each other. The staggered positioning of the positioning blocks 31 ensures that when the protruding structure 30 changes direction, the protruding configuration of the protruding structure 30 is different from before, thereby preventing workers from reversing the connection direction of the transverse beam 10 and the longitudinal beam 20, and ensuring the correctness of the connection assembly.
[0045] It should be noted that in other alternative embodiments, when the protruding structure 30 is disposed on the longitudinal beam 20, a number of positioning blocks 31 are staggered along the first direction X.
[0046] It should be noted that the shape of the embedded cavity 40 is adjusted according to the change in the shape of the protruding structure 30.
[0047] It should be noted that if the positioning blocks 31 are evenly arranged in the same direction, and if the cross-sectional shape of the positioning blocks 31 is square or rectangular, the embedded cavity 40 will not change after being rotated 180°. In this case, the operator may install the side beam with the embedded cavity 40 upside down. However, the installation direction of the side beam has specific requirements. Therefore, by setting the positioning blocks 31 to be staggered, the embedded cavity 40 and the positioning block 31 will not correspond after being rotated 180°, and cannot be installed, thereby reducing the possibility of misinstallation.
[0048] It should be noted that the positioning blocks 31 at different positions can also be set with different phase angles, which can also avoid the situation where the side beam of the embedded cavity 40 is inverted.
[0049] In one embodiment, such as Figure 2 As shown, the protruding structure 30 also includes an anti-misalignment block 32. The anti-misalignment block 32 and the positioning block 31 are spaced apart and perpendicular to the protruding extension direction of the protruding structure 30. Several positioning blocks 31 have the same cross-sectional shape, while the cross-sectional shape of the anti-misalignment block 32 is different from that of the positioning block 31. By setting the anti-misalignment block 32, workers are prevented from reversing the connection direction of the transverse beam 10 and the longitudinal beam 20, ensuring the correctness of the connection and assembly.
[0050] Specifically, in this embodiment, the protruding structure 30 is disposed on the transverse beam 10, and the protruding extension direction of the protruding structure 30 is also the first direction X, which is perpendicular to the first direction X. The cross-sectional shape of the several positioning blocks 31 is the same, and the cross-sectional shape of the anti-misalignment block 32 is different from that of the positioning block 31.
[0051] It should be noted that in other alternative embodiments, when the protruding structure 30 is disposed on the longitudinal side beam 20, the protruding extension direction of the protruding structure 30 is also the second direction Y, which is perpendicular to the second direction Y. The cross-sectional shape of the several positioning blocks 31 is the same, and the cross-sectional shape of the anti-misalignment block 32 is different from that of the positioning block 31.
[0052] It should be noted that the cross-sectional shape of the anti-misalignment block 32 and the cross-sectional shape of the positioning block 31 may both be polygonal (e.g., triangular), but they are different in size or the orientation of their apex on the connecting end face.
[0053] It should be noted that the shape of the anti-misalignment block 32 is different from that of the positioning block 31. After the embedding cavity 40 is rotated 180°, the opening position and shape of the embedding cavity 40 do not correspond to the anti-misalignment block 32. Therefore, it can prevent the situation where the embedding cavity 40 does not change after being rotated 180°, which would lead to misinstallation.
[0054] In one embodiment, the cross-sectional shape of the anti-misalignment block 32 is triangular, trapezoidal, or polygonal, perpendicular to the protruding extension direction of the protruding structure 30.
[0055] Specifically, in this embodiment, the protruding structure 30 is disposed on the transverse beam 10, and the protruding extension direction of the protruding structure 30 is also the first direction X.
[0056] It should be noted that the cross-sectional shape of the error-proof block 32 and the cross-sectional shape of the positioning block 31 can both be triangular or quadrilateral, but the specific data parameters (such as length, angle, etc.) of the error-proof block 32 need to be different from those of the positioning block 31.
[0057] In one embodiment, such as Figure 1 As shown, the protruding structure 30 is disposed on the transverse beam 10, the embedded cavity 40 is formed on the longitudinal beam 20, and the longitudinal beam 20 has a through hole 50; the fastener 60 passes through the through hole 50 and abuts against the protruding structure 30. Through the cooperation of the fastener 60 and the protruding structure 30, the initial positioning of the transverse beam 10 and the longitudinal beam 20 before welding is achieved, further preventing misalignment between the transverse beam 10 and the longitudinal beam 20.
[0058] It should be noted that when the fastener 60 abuts against the protruding structure 30, the friction generated between the bottom of the fastener 60 and the protruding structure 30 can also restrict the movement of the protruding structure 30, thereby ensuring that the longitudinal beam 20 will not be misaligned relative to the transverse beam 10.
[0059] Of course, in other embodiments, the protruding structure 30 is provided with a threaded hole, and the fastener 60 can also pass through the through hole 50 and be fixed in the threaded hole of the protruding structure 30.
[0060] Of course, in other embodiments, the protruding structure 30 may also be disposed on the longitudinal side beam 20, the embedded cavity 40 is formed on the transverse side beam 10, and the transverse side beam 10 is provided with a through hole; the fixing member 60 passes through the through hole 50 and is fixed in the protruding structure 30, or the fixing member 60 passes through the through hole 50 and abuts against the protruding structure 30.
[0061] In one embodiment, such as Figure 1 and Figure 4 As shown, the longitudinal side beam 20 has a first hollowed-out groove 21. By opening the first hollowed-out groove 21 in the longitudinal side beam 20, it is beneficial to reduce the weight of the longitudinal side beam 20, thereby reducing the weight of the box structure.
[0062] It should be noted that, in accordance with the structural strength requirements of the longitudinal beam 20, the number of the first hollowed-out grooves 21 can be adjusted according to the actual situation.
[0063] In one embodiment, such as Figure 1 As shown, the transverse beam 10 has a second hollowed-out groove 11. By opening the second hollowed-out groove 11 in the transverse beam 10, it is beneficial to reduce the weight of the transverse beam 10, thereby reducing the weight of the box structure.
[0064] It should be noted that, in accordance with the structural strength requirements of the transverse beam 10, the number of the second hollowed-out grooves 11 can be adjusted according to the actual situation.
[0065] In this embodiment, please refer to Figure 5 Two longitudinal side beams 20 and two transverse side beams 10 are welded perpendicularly to each other to form a box structure.
[0066] To install the battery pack in this embodiment, firstly, align and embed the positioning blocks 31 and anti-misalignment blocks 32 at both ends of one horizontal beam 10 with the embedding cavities 40 of the two vertical beams 20 respectively; then, align and embed the positioning blocks 31 and anti-misalignment blocks 32 at both ends of the other horizontal beam 10 with the embedding cavities 40 of the two vertical beams 20; finally, abut the fastener 60 through the through hole 50 against the protruding structure 30.
[0067] According to an embodiment of the present invention, in a second aspect, an electrical device is also provided, including the battery pack described above.
[0068] Although embodiments of the present invention 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 the present invention, and such modifications and variations all fall within the scope defined by the present invention.
Claims
1. A battery pack having a first direction (X) and a second direction (Y) intersecting, characterized by, The utility model relates to a kind of beam structures, including: Horizontal edge beam (10), along the first direction (X), the horizontal edge beam (10) is provided with multiple, multiple the horizontal edge beam (10) is spaced apart; Longitudinal edge beam (20), along the second direction (Y), the longitudinal edge beam (20) is provided with multiple, multiple the longitudinal edge beam (20) is spaced apart, each the longitudinal edge beam (20) is connected with its adjacent horizontal edge beam (10), the horizontal edge beam (10) corresponding connection forms first connection end face, the longitudinal edge beam (20) corresponding connection forms second connection end face; Protruding structure (30), it is arranged in one of adjacent horizontal edge beam (10) and longitudinal edge beam (20), the protruding structure (30) is arranged on the first connection end face or the second connection end face; Embedded cavity (40), it is opened in another of adjacent horizontal edge beam (10) and longitudinal edge beam (20), the embedded cavity (40) is formed on the first connection end face or the second connection end face, the protruding structure (30) is correspondingly embedded in the embedded cavity (40), the edge beam that the embedded cavity (40) is opened is also opened with through hole (50), the through hole (50) is communicated with the embedded cavity (40); Fixing piece (60), the fixing piece (60) is penetrated through the through hole (50) and is connected with the protruding structure (30).
2. The battery pack of claim 1, wherein, The protruding structure (30) includes positioning block (31), the positioning block (31) is provided with several, several the positioning block (31) is spaced apart, the embedded cavity (40) includes several accommodating grooves (41), several the positioning block (31) and several the accommodating groove (41) are embedded and set one by one.
3. The battery pack of claim 2, wherein, Along the first direction (X), several the positioning block (31) is misaligned and set mutually, or, along the second direction (Y), several the positioning block (31) is misaligned and set mutually.
4. The battery pack of claim 2, wherein, The protruding structure (30) also includes anti-mistake block (32), the anti-mistake block (32) and the positioning block (31) are spaced apart, perpendicular to the protruding extension direction of the protruding structure (30), the cross-sectional shape of several the positioning block (31) is identical, the cross-sectional shape of the anti-mistake block (32) is different from the cross-sectional shape of the positioning block (31).
5. The battery pack of claim 4, wherein, Perpendicular to the protruding extension direction of the protruding structure (30), the cross-sectional shape of the anti-mistake block (32) is triangle, trapezoidal or polygon.
6. The battery pack of claim 1, wherein, The protruding structure (30) is arranged on the horizontal edge beam (10), the embedded cavity (40) is formed on the longitudinal edge beam (20), the through hole (50) is opened on the longitudinal edge beam (20); The fixing piece (60) is penetrated through the through hole (50) and is fixed in the protruding structure (30), or, the fixing piece (60) is penetrated through the through hole (50) and is abutted with the protruding structure (30).
7. The battery pack of claim 1, wherein, The protruding structure (30) is arranged on the longitudinal edge beam (20), the embedded cavity (40) is formed on the horizontal edge beam (10), the through hole (50) is opened on the horizontal edge beam (10); The fixing member (60) penetrates the through hole (50) and is fixed in the protruding structure (30), or the fixing member (60) penetrates the through hole (50) and abuts against the protruding structure (30).
8. The battery pack of any one of claims 1-5, wherein, The longitudinal edge beam (20) is provided with a first hollow groove (21).
9. The battery pack of any one of claims 1-5, wherein, The transverse edge beam (10) is provided with a second hollow groove (11).
10. An electric device, characterized by The battery pack according to any one of claims 1 to 9. The battery pack according to any one of claims 1 to 9.