Battery pack and electric device

Abstract

The utility model relates to battery pack technical field discloses a kind of battery pack and electrical equipment, and battery pack includes first component, second component and battery pack, first component includes integrally formed first side plate and two second end plates, two first end plates are located at the end of first side plate and form first accommodating space;Second component includes integrally formed second side plate and two second end plates, two second end plates are located at the end of second side plate and form second accommodating space.First component, second component form half-enclosure to battery pack respectively, two components are equivalent to the simplified design of four side edges, only need to combine two components to form frame, reliably fixed effect can be played to battery pack.In addition, one end of first end plate is equipped with first part, one end of second end plate is equipped with second part, and welding part is located between first part and second part, two weldings can reliably connect first component and second component, reduce welding workload, improve the production efficiency of battery pack.

Description

Technical Field

[0001] This utility model relates to the field of battery pack technology, and in particular to a battery pack and electrical equipment. Background Technology

[0002] With the rapid development of the new energy vehicle market, battery packs, as power modules, are attracting increasing attention from consumers. A battery pack typically consists of multiple individual battery cells, which are then secured within a housing using a frame.

[0003] Currently, the individual battery cells in the battery pack are first stacked to form a battery assembly. The battery assembly is reliably fixed using a rectangular frame, and then the battery assembly and the rectangular frame are installed in a housing. The rectangular frame includes four sides, which are welded together sequentially around the rectangular outline. Furthermore, the rectangular frame also has internal partitions to separate and protect the individual battery cells.

[0004] However, the existing battery packs require multi-point welding for the four side connections, resulting in a large number of welding points and a large welding area, which leads to low battery pack production efficiency. Utility Model Content

[0005] The technical problem this utility model aims to solve is that the existing battery packs require multi-point welding for the four side connections, resulting in a large number of welding points and a large welding area, which leads to low battery pack production efficiency.

[0006] To solve the above-mentioned technical problems, this utility model provides a technical solution for a battery pack:

[0007] A battery pack, having a first orientation, includes:

[0008] The first component includes an integrally formed first side plate and two first end plates; the first side plate extends along the first direction, and the two first end plates are located at both ends of the first side plate along the first direction and form a first accommodating space; a first part is provided at the end of the first end plate away from the first side plate;

[0009] The second component includes an integrally formed second side plate and two second end plates; the second side plate extends along the first direction, and the two second end plates are located at both ends of the second side plate along the first direction and form a second accommodating space; a second part is provided at the end of the second end plate away from the second side plate, and the second part is in a limiting cooperation with the first part;

[0010] A welding section is located between the first section and the second section;

[0011] The battery pack is housed in the first accommodating space and the second accommodating space.

[0012] Furthermore, the first part is a first step part arranged in a stepped manner along the first direction, and the second part is a second step part arranged in a stepped manner along the first direction.

[0013] Furthermore, the first portions of the two first end plates are arranged symmetrically with respect to the first side plates, and the second portions of the two second end plates are arranged symmetrically with respect to the second side plates.

[0014] Furthermore, it also has a second direction and a third direction, the first direction, the second direction and the third direction are perpendicular to each other; the battery pack also includes a first limiting member and a second limiting member, the first side plate is provided with a plurality of first slots, the plurality of first slots are distributed at intervals along the first direction, and the first limiting member is installed in the first slot.

[0015] The first limiting member protrudes from the first side plate along the second direction, and the first limiting member is positioned and engaged with the battery pack;

[0016] The second side plate has a plurality of second slots, which are spaced apart along the first direction, and the second limiting member is installed in the second slot;

[0017] The second limiting member protrudes from the second side plate along the second direction, and the second limiting member is positioned and engaged with the battery pack.

[0018] Furthermore, the battery pack also includes a separator disposed between the first side plate and the second side plate, and the separator extends along the first direction; the separator is positioned and engaged with the first end plate at one end in the first direction, and / or the separator is positioned and engaged with the second end plate at the other end in the first direction.

[0019] Furthermore, the partition plate has a protrusion at its end in the first direction, and the first end plate and / or the second end plate have a positioning groove, with the protrusion inserted into the positioning groove.

[0020] Furthermore, the partition is provided with a plurality of third slots on each of the two sides in the second direction. On the same side of the partition along the second direction, the plurality of third slots are spaced apart along the first direction. On both sides of the partition along the second direction, the third slots are spaced apart along the second direction.

[0021] The battery pack further includes a third limiting member, which is installed in the third slot; the third limiting member protrudes from the surface of the partition along the second direction and is positioned and engaged with the battery pack.

[0022] Furthermore, the partition plate has a plurality of elongated holes, which penetrate the partition plate along the second direction, and the plurality of elongated holes are spaced apart along the first direction;

[0023] The battery pack also includes a limiting strip, which is installed in the elongated hole and protrudes from the surface of the partition along the second direction. The limiting strip is positioned and engaged with the battery pack.

[0024] Furthermore, the first side plate and the second side plate are provided with a first flange on one side in the third direction. The first flange protrudes out of the first accommodating space or the second accommodating space, and the first flange is engaged with the battery pack along the third direction.

[0025] And / or, the separator is provided with a second flange on one side of the third direction, the second flange protruding from the surface of the separator along the second direction, and the second flange engaging with the battery pack along the third direction.

[0026] To achieve the above objectives, this utility model also provides a technical solution for electrical equipment:

[0027] The electrical equipment includes the battery pack described in any of the above technical solutions.

[0028] Compared with the prior art, the battery pack and electrical equipment of this utility model have the following advantages: the battery pack adopts a design of a first component, a second component, and a battery pack. The first component includes an integrally formed first side plate and two second end plates. The two first end plates are located at the ends of the first side plate in a first direction, and the first side plate and the two second end plates form a first accommodating space. Correspondingly, the second component includes an integrally formed second side plate and two second end plates. The two second end plates are located at the ends of the second side plate in a first direction, and the second side plate and the two second end plates form a second accommodating space.

[0029] The first and second components form a semi-enclosed structure around the battery pack, effectively accommodating it. These two components represent a simplified design with four sides; simply combining them creates a frame that reliably secures the battery pack. Furthermore, the first end plate has a first part at its end furthest from the first side plate, and the second end plate has a second part at its end furthest from the second side plate. A welding section is located between the first and second parts, and these two welds reliably connect the first and second components, reducing welding workload and improving battery pack production efficiency. Attached Figure Description

[0030] Figure 1 This is a three-dimensional schematic diagram of the battery pack in an embodiment of this utility model;

[0031] Figure 2This is a top view of the battery pack in an embodiment of this utility model;

[0032] Figure 3 This is a three-dimensional schematic diagram of the first component, the second component, and the partition in an embodiment of this utility model;

[0033] Figure 4 This is an exploded view of the first component, the second component, and the partition in an embodiment of this utility model;

[0034] Figure 5 This is a partial cross-sectional view of the battery pack in the second direction in an embodiment of this utility model;

[0035] Figure 6 This is a cross-sectional view of the battery pack in the second direction in another embodiment of the present invention;

[0036] In the diagram: 1-First component, 10-First accommodating space, 11-First side plate, 12-First end plate, 13-First part, 14-First slot, 15-Positioning groove, 16-First flange, 2-Second component, 20-Second accommodating space, 21-Second side plate, 22-Second end plate, 23-Second part, 24-Second slot, 25-Welding part, 3-Battery pack, 30-Battery cell, 4-Separator, 41-Protrusion, 42-Third slot, 43-Elongated hole, 44-Second flange, 51-First limiting member, 52-Second limiting member, 53-Third limiting member, 6-Limiting strip, X-First direction, Y-Second direction, Z-Third direction. Detailed Implementation

[0037] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0038] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise" used to indicate the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0039] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0040] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0041] like Figures 1 to 5 As shown, a battery pack according to an embodiment of the present invention has a first direction X, a second direction Y and a third direction Z that intersect each other, and includes: a first component 1, a second component 2, a welding part 25 and a battery pack 3. The first component 1 includes an integrally formed first side plate 11 and two first end plates 12; the first side plate 11 extends along the first direction X, and the two first end plates 12 are located at both ends of the first side plate 11 along the first direction X and form a first accommodating space 10; a first part 13 is provided at the end of the first end plate 12 away from the first side plate 11.

[0042] The second component 2 includes an integrally formed second side plate 21 and two second end plates 22; the second side plate 21 extends along the first direction X, and the two second end plates 22 are located at both ends of the second side plate 21 along the first direction X and form a second accommodating space 20; a second part 23 is provided at the end of the second end plate 22 away from the second side plate 21, and the second part 23 is in a limiting fit with the first part 13; a welding part 25 is provided between the first part 13 and the second part 23; the battery pack 3 is accommodated in the first accommodating space 10 and the second accommodating space 20.

[0043] The battery pack adopts a design of a first component 1, a second component 2, and a battery pack 3. The first component 1 includes an integrally formed first side plate 11 and two second end plates 12. The two first end plates 12 are located at the ends of the first side plate 11 in the first direction X, and the first side plate 11 and the two second end plates 12 form a first accommodating space 10. Correspondingly, the second component 2 includes an integrally formed second side plate 21 and two second end plates 22. The two second end plates 22 are located at the ends of the second side plate 21 in the first direction X, and the second side plate 21 and the two second end plates 22 form a second accommodating space 20.

[0044] The first component 1 and the second component 2 form a semi-enclosed structure around the battery pack 3, effectively accommodating it. The two components represent a simplified design with four sides; only the two components need to be combined to form a frame, reliably securing the battery pack 3. Furthermore, the first end plate 12 has a first part 13 at its end away from the first side plate 11, and the second end plate 22 has a second part 23 at its end away from the second side plate 21. A welding part 25 is located between the first part 13 and the second part 23. These two welds reliably connect the first component 1 and the second component 2, reducing welding workload and improving battery pack production efficiency.

[0045] In this embodiment, the first part 13 is a first step portion arranged in a stepped manner along the first direction X, and the second part 23 is a second step portion arranged in a stepped manner along the first direction X. The first step portion and the second step portion are in a concave-convex fit, which plays a positioning role when the first component 1 and the second component 2 are spliced ​​together, ensuring the accuracy of welding and fixing.

[0046] Specifically, the first parts 13 of the two first end plates 12 are arranged symmetrically about the first side plate 11, and the second parts 23 of the two second end plates 22 are arranged symmetrically about the second side plate 21. The symmetrical arrangement of the first parts 13 at both ends of the first component 1 and the symmetrical arrangement of the second parts 23 at both ends of the second component 2 simplifies the structural design of the first component 1 and the second component 2, and makes it easier to achieve a positioning effect during splicing.

[0047] like Figure 4 , Figure 6 As shown, the battery pack also includes a first limiting member 51 and a second limiting member 52. The first side plate 11 has multiple first slots 14 spaced apart along a first direction X. The first limiting member 51 is installed in the first slot 14. The first limiting member 51 protrudes from the first side plate 11 along a second direction Y and is positioned in conjunction with the battery pack 3. The second side plate 21 has multiple second slots 24 spaced apart along a first direction X. The second limiting member 52 is installed in the second slots 24. The second limiting member 52 protrudes from the second side plate 21 along a second direction Y and is positioned in conjunction with the battery pack 3. The first limiting member 51 separates and limits the battery cells within the first accommodating space 10, and the second limiting member 52 separates and limits the battery cells within the second accommodating space 20, ensuring that gaps for heat dissipation and adhesive filling are reserved between each battery cell.

[0048] As a further preferred embodiment, the battery pack also includes a separator 4, which is disposed between the first side plate 11 and the second side plate 21, and extends along the first direction X. The ends of the separator 4 in the first direction X are respectively positioned and engaged with the first end plate 12 and the second end plate 22. The separator 4 separates and groups the battery pack 3 along the second direction Y. The positioning and engagement of the separator 4 with the first end plate 12 and the second end plate 22 ensures that the position of the separator 4 is fixed, thereby achieving a reliable separation function.

[0049] Specifically, such as Figure 4 As shown, the partition 4 has a protrusion 41 at its end in the first direction X, and the first end plate 12 and the second end plate 22 have positioning grooves 15, with the protrusion 41 inserting into the positioning grooves 15. This insert-fit assembly method facilitates assembly while ensuring the positional reliability of the partition 4 between the first component 1 and the second component 2. To meet different usage requirements, in other embodiments, the design can be simplified to a positioning fit between the partition and the first or second end plate. Specifically, the partition has a protrusion at one end in the first direction X, and the positioning groove is only opened on the first or second end plate. The reliability of the partition's installation position can be ensured by inserting the protrusion into the positioning groove.

[0050] And, as Figure 4 , Figure 5 As shown, the separator 4 has multiple third slots 42 on both sides in the second direction Y. On the same side of the separator 4 along the second direction Y, the multiple third slots 42 are spaced apart along the first direction X. On both sides of the separator 4 along the second direction Y, the third slots 42 are spaced apart along the second direction Y. The battery pack also includes a third limiting member 53, which is installed in the third slot 42. The third limiting member 53 protrudes from the surface of the separator 4 along the second direction Y and is positioned and engaged with the battery pack 3. The third limiting member 53 of the separator 4 engages with the first limiting member 51 of the first side plate 11, and the third limiting member 53 of the separator 4 engages with the second limiting member 52 of the second side plate 21, so that both sides of the battery cell are separated and limited, ensuring the balance of the battery cell spacing.

[0051] To meet different usage requirements, the third limiting member can be improved and optimized in other embodiments, such as... Figure 6 As shown, the separator 4 has multiple elongated holes 43, which penetrate the separator 4 along the second direction Y, and are spaced apart along the first direction X. The battery pack also includes a limiting strip 6, which is installed in the elongated holes 43. The limiting strip 6 protrudes from the surface of the separator 4 along the second direction Y and is positioned and engaged with the battery pack 3. By inserting the limiting strip 6 into the elongated holes 43, limiting portions protruding from the surface of the separator 4 are formed on both sides of the separator 4, simplifying the structural design and effectively separating and limiting the battery cells on both sides of the separator 4.

[0052] In addition, the first side plate 11 and the second side plate 21 are provided with a first flange 16 on the third direction Z side. The first flange 16 protrudes into the first accommodating space 10 or the second accommodating space 20, and the first flange 16 is engaged with the battery pack 3 along the third direction Z; and / or, the separator 4 is provided with a second flange 44 on the third direction Z side. The second flange 44 protrudes from the surface of the separator 4 along the second direction Y, and the second flange 44 is engaged with the battery pack 3 along the third direction Z. Through the first flange 16 and / or the second flange 44, the battery pack 3 in the first accommodating space 10 and the second accommodating space 20 is stopped along the third direction Z, ensuring the stable installation position of the battery pack 3 and improving the assembly accuracy of the battery pack.

[0053] The specific embodiments of the electrical equipment of this utility model include a battery pack. The specific embodiments of the battery pack in the specific embodiments of the battery pack of this utility model are the same, and will not be repeated here.

[0054] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A battery pack having a first direction (X), characterized in that, include: The first component (1) includes an integrally formed first side plate (11) and two first end plates (12); the first side plate (11) extends along the first direction (X), and the two first end plates (12) are located at both ends of the first side plate (11) along the first direction (X) and form a first accommodating space (10); a first part (13) is provided at the end of the first end plate (12) away from the first side plate (11). The second component (2) includes an integrally formed second side plate (21) and two second end plates (22); the second side plate (21) extends along the first direction (X), and the two second end plates (22) are located at both ends of the second side plate (21) along the first direction (X) and form a second accommodating space (20); a second part (23) is provided at one end of the second end plate (22) away from the second side plate (21), and the second part (23) is in a limiting cooperation with the first part (13); A welding part (25) is provided between the first part (13) and the second part (23); The battery pack (3) is housed in the first accommodating space (10) and the second accommodating space (20).

2. The battery pack according to claim 1, characterized in that, The first part (13) is a first step part arranged in a stepped manner along the first direction (X), and the second part (23) is a second step part arranged in a stepped manner along the first direction (X).

3. The battery pack according to claim 2, characterized in that, The first part (13) of the two first end plates (12) is arranged symmetrically about the first side plate (11), and the second part (23) of the two second end plates (22) is arranged symmetrically about the second side plate (21).

4. The battery pack according to claim 1, characterized in that, It also has a second direction (Y) and a third direction (Z), the first direction (X), the second direction (Y) and the third direction (Z) are perpendicular to each other; the battery pack also includes a first limiting member (51) and a second limiting member (52), the first side plate (11) is provided with a plurality of first slots (14), the plurality of first slots (14) are distributed at intervals along the first direction (X), and the first limiting member (51) is installed in the first slot (14); The first limiting member (51) protrudes from the first side plate (11) along the second direction (Y), and the first limiting member (51) is positioned and engaged with the battery pack (3); The second side plate (21) has a plurality of second slots (24), which are spaced apart along the first direction (X), and the second limiting member (52) is installed in the second slot (24). The second limiting member (52) protrudes from the second side plate (21) along the second direction (Y), and the second limiting member (52) is positioned and engaged with the battery pack (3).

5. The battery pack according to claim 4, characterized in that, The battery pack also includes a separator (4), which is disposed between the first side plate (11) and the second side plate (21), and the separator (4) extends along the first direction (X); the separator (4) is positioned and engaged with the first end plate (12) at one end in the first direction (X), and / or the separator (4) is positioned and engaged with the second end plate (22) at the other end in the first direction (X).

6. The battery pack according to claim 5, characterized in that, The partition (4) has a protrusion (41) at the end in the first direction (X), and the first end plate (12) and / or the second end plate (22) have a positioning groove (15), and the protrusion (41) is inserted into the positioning groove (15).

7. The battery pack according to claim 5, characterized in that, The partition (4) is provided with a plurality of third slots (42) on both sides of the second direction (Y). On the same side of the partition (4) along the second direction (Y), the plurality of third slots (42) are spaced apart along the first direction (X). On both sides of the partition (4) along the second direction (Y), the third slots (42) are spaced apart along the second direction (Y). The battery pack also includes a third limiting member (53), which is installed in the third slot (42); the third limiting member (53) protrudes from the surface of the partition (4) along the second direction (Y), and the third limiting member (53) is positioned and engaged with the battery pack (3).

8. The battery pack according to claim 5, characterized in that, The partition (4) has a plurality of elongated holes (43), which penetrate the partition (4) along the second direction (Y) and are spaced apart along the first direction (X). The battery pack also includes a limiting strip (6), which is installed in the elongated hole (43). The limiting strip (6) protrudes from the surface of the partition (4) along the second direction (Y) and is positioned and engaged with the battery pack (3).

9. The battery pack according to claim 5, characterized in that, The first side plate (11) and the second side plate (21) are provided with a first flange (16) on one side of the third direction (Z). The first flange (16) protrudes out of the first accommodating space (10) or the second accommodating space (20). The first flange (16) and the battery pack (3) are engaged in a stop-fitting cooperation along the third direction (Z). And / or, the partition (4) is provided with a second flange (44) on one side of the third direction (Z), the second flange (44) protrudes from the surface of the partition (4) along the second direction (Y), and the second flange (44) is in a stop-fitting engagement with the battery pack (3) along the third direction (Z).

10. An electrical appliance, characterized in that, Includes the battery pack as described in any one of claims 1 to 9.

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