Battery case and battery pack using same

Abstract

A battery case and a battery pack using same. The battery case comprises a bottom plate (1), side plates (2), a lower support plate (3), a partition plate (4), and an upper support plate (5). The top surface of the bottom plate (1) is provided with first bosses (11). The side plates (2) are perpendicular to the bottom plate (1) and are arranged at two opposite edges of the bottom plate (1), a first snap (21) and a second snap (22) are arranged on the inner side of each side plate (2) in an extension direction of the side plate (2), and the first snap (21) is closer to the bottom plate (1) than the second snap (22). Two opposite ends of the lower support plate (3) are respectively arranged on the first snaps (21), the bottom surface of the lower support plate (3) abuts against the first bosses (11), and the top surface of the lower support plate (3) is used for placing batteries. Two opposite ends of the partition plate (4) are respectively fixedly arranged on the second snaps (22), and the top surface of the partition plate (4) is provided with second bosses (41). Two opposite ends of the upper support plate (5) are respectively arranged on the second snaps (22), the bottom surface of the upper support plate (5) abuts against the second bosses (41), and the top surface of the upper support plate (5) is used for placing batteries.

Description

Battery box and battery pack using the same

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on February 6, 2024, with application number 2024202871025. The entire contents of the above application are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of battery technology, and in particular to a battery box and a battery pack using the same. Background Art

[0003] Currently, most battery packs on the market use battery cases that can only accommodate a single layer of batteries. However, with the continuous development of electric vehicles, the demand for battery pack energy density is getting higher and higher, and the existing single-layer structure can no longer meet market demand. Technical issues

[0004] Currently, most battery pack boxes can only accommodate a single layer of batteries, resulting in low space utilization within the battery pack. Technical Solutions

[0005] In a first aspect, the present application provides a battery box, comprising:

[0006] A bottom plate, wherein a first boss is provided on a top surface of the bottom plate;

[0007] The side panels are perpendicular to the bottom panel and are arranged on two opposite edges of the bottom panel. A first card platform and a second card platform are arranged on the inner side of the side panel along the extension direction thereof. The first card platform is closer to the bottom panel than the second card platform.

[0008] A lower support plate, wherein opposite ends of the lower support plate are respectively arranged on the first clamping platform, the bottom surface of the lower support plate abuts against the first protrusion, and the top surface of the lower support plate is used to place the battery;

[0009] A partition, with opposite ends of the partition respectively fixed to the second clamping platform, and a second boss provided on the top surface of the partition;

[0010] The upper support plate has two opposite ends respectively arranged on the second clamping platform, the bottom surface of the upper support plate abuts against the second convex platform, and the top surface of the upper support plate is used for placing batteries.

[0011] In a second aspect, the present application provides a battery pack, comprising:

[0012] The battery box as described above;

[0013] One or more first batteries, the first batteries being arranged on the top surface of the lower support plate;

[0014] One or more second batteries, wherein the second batteries are arranged on the top surface of the upper support plate. Beneficial effects

[0015] The top surface of the lower support plate is fixed with the second support plate, and the top surface of the lower support plate is used to place the battery. The first and second side plates are fixed with the second support plate, and the second and second side plates are fixed with the second support plate. The top surface of the lower support plate is fixed with the second support plate, and the second and second side plates are fixed with the second support plate. The bottom surface of the upper support plate is fixed with the second support plate, and the bottom surface of the upper support plate is fixed with the second support plate. The bottom surface of the upper support plate is fixed with the second support plate, and the bottom surface of the upper support plate is fixed with the second support plate. The top surface of the upper support plate is used to place the battery. A double-layer structure is formed, and the arrangement of double-layer batteries is realized, which greatly improves the space utilization rate in the battery pack, enhances the structural strength of the double-layer structure, and ensures the stability of the double-layer battery arrangement. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] FIG1 is a perspective view of a battery box embodiment of the present application;

[0017] FIG2 is a cross-sectional view of an embodiment of a battery box of the present application;

[0018] FIG3 is a cross-sectional view of a battery pack embodiment of the present application.

[0019] The meanings of the reference numerals are as follows:

[0020] 1. Bottom plate; 11. First boss; 2. Side plate; 21. First clamping platform; 211. Clamping strip; 22. Second clamping platform; 3. Lower support plate; 4. Partition plate; 41. Second boss; 5. Upper support plate; 6. Top cover; 61. Groove; 7. Connector; 80. Filler; 81. First battery; 82. Second battery; 9. End cover. Modes for Carrying Out the Invention

[0021] Example 1

[0022] 1 and 2 , the present application provides a battery box, comprising: a bottom plate 1 , a side plate 2 , a lower support plate 3 , a partition plate 4 , and an upper support plate 5 .

[0023] Among them, the top surface of the bottom plate 1 is provided with a first boss 11; the side plate 2 is perpendicular to the bottom plate 1 and is arranged on the opposite edges of the bottom plate 1, and the inner side of the side plate 2 is arranged with a first card platform 21 and a second card platform 22 along its extension direction, that is, the inner side of the side plate 2 is arranged with a first card platform 21 and a second card platform 22 along its direction perpendicular to the bottom plate 1, and the first card platform 21 is closer to the bottom plate 1 than the second card platform 22; the opposite ends of the lower support plate 3 are respectively provided on the first card platform 21, and the bottom surface of the lower support plate 3 abuts on the first boss 11, and the first boss 11 is against the lower support plate 3 It plays a supporting role so that the lower support plate 3 is placed on the plane where the upper surface of the first boss 11 is located, and the top surface of the lower support plate 3 is used to place the battery; the opposite ends of the partition 4 are respectively fixed to the second card platform 22, and the top surface of the partition 4 is provided with a second boss 41, and the second boss 41 supports the partition 4 so that the partition 4 is placed on the plane where the upper surface of the second boss 4111 is located; the opposite ends of the upper support plate 5 are respectively provided on the second card platform 22, the bottom surface of the upper support plate 5 abuts against the second boss 41, and the top surface of the upper support plate 5 is used to place the battery.

[0024] Through the above-mentioned setting, a double-layer structure is formed, which enables the layout of double-layer batteries, greatly improves the space utilization in the battery pack, enhances the structural strength of the double-layer structure, and ensures the stability of the double-layer battery layout.

[0025] In some embodiments of the present application, the battery box further includes: a top cover 6 .

[0026] Among them, the top cover 6 is detachably connected to the top end of the side panel 2 and is perpendicular to the side panel 2; in some embodiments, the bottom surface of the top cover 6 is concave inwardly toward the direction of the upward support plate 5 to form a groove 61 to enhance the structural strength of the top cover 6; in some embodiments, a first hole position is provided at the top end of the side panel 2, and a connecting hole is provided at the edge of the top cover 6, and a connector 7 is plugged into the first hole position and the connecting hole to make the top cover 6 detachably connected to the top end of the side panel 2; wherein the first hole position and the connecting hole can be set as screw holes, and accordingly, the connector 7 can be set as a screw.

[0027] By providing a top cover 6 that is detachably connected to the side panel 2, the batteries in the box can be shielded and protected, and maintenance inside the box can be facilitated. When the battery needs to be replaced, the top cover 6 can be removed to replace the battery in the box, and the top cover 6 can be reinstalled after replacement.

[0028] Specifically, the top surface is the side facing upward during normal use, and the bottom surface is the side facing downward opposite to the top surface; correspondingly, the top end is the end facing upward during normal use, and the bottom end is the end facing downward opposite to the top end.

[0029] More specifically, the side panel 2 is hollowed out, which on the one hand reduces the overall weight of the side panel 2, and on the other hand, the reinforcing ribs formed by the internal hollowing support the inner and outer sides of the side panel 2 respectively, so that the overall strength of the side panel 2 is enhanced; optionally, the side surface of the first clamping platform 21 extends toward the lower support plate 3 to form a clamping strip 211, that is, the side surface of the first clamping platform 21 extends inward to form a clamping strip 211, and the opposite ends of the lower support plate 3 are respectively arranged on the top surface of the clamping strip 211, so that the lower support plate 3 can be connected to the first clamping platform 21 through a simpler and more stable structure.

[0030] In some embodiments, the bottom end of the side panel 2 is detachably connected to two opposite edges of the bottom panel 1; in some embodiments, a second hole position is provided at the bottom end of the side panel 2, and mounting holes are provided at two opposite edges of the bottom panel 1, and a connector 7 is plugged into the second hole position and the mounting hole so that the bottom end of the side panel 2 can be detachably connected to two opposite edges of the bottom panel 1; wherein the first hole position and the connecting hole can be set as screw holes, and correspondingly, the connecting member 7 can be set as a screw.

[0031] The side panels 2 and the bottom panel 1 are detachably connected via the connector 7, making it easy to disassemble the side panels 2 for maintenance of the side panels 2 themselves and the batteries in the box.

[0032] In some embodiments, end plates may be provided on the other two opposite edges of the bottom plate 1 , which together with the side plates 2 form a space inside the box for accommodating and protecting the batteries.

[0033] Example 2

[0034] 3 , based on the same concept, the present application also discloses a battery pack, comprising: the battery case as described above, one or more first batteries 81 , and one or more second batteries 82 .

[0035] The first battery 81 is arranged on the top surface of the lower support plate 3, and the second battery 82 is arranged on the top surface of the upper support plate 5, thereby forming a double-layer battery arrangement and improving the space utilization rate in the battery pack.

[0036] In actual applications, the lower support plate 3 and the side plate 2 are surrounded to form a first filling space, and a filler 80 is set in the first filling space so that the first battery 81 is fixedly set on the top surface of the lower support plate 3; and / or, the upper support plate 5 and the side plate 2 are surrounded to form a second filling space, and a filler 80 is set in the second filling space so that the second battery 82 is fixedly set on the top surface of the upper support plate 5; wherein the filler can be set to foam glue to facilitate filling the gaps between each first battery 81, the space between the first battery 81 and the side plate 2 and the partition, the gaps between each second battery 82, and the space between the second battery 82 and the side plate 2.

Claims

1. Battery box, including: A bottom plate (1), wherein a top surface of the bottom plate (1) is provided with a first boss (11); Side panels (2), the side panels (2) being perpendicular to the bottom panel (1) and arranged on two opposite edges of the bottom panel (1), a first card platform (21) and a second card platform (22) being arranged on the inner side of the side panel (2) along its extension direction, the first card platform (21) being closer to the bottom panel (1) than the second card platform (22); A lower support plate (3), wherein opposite ends of the lower support plate (3) are respectively arranged on the first clamping platform (21), the bottom surface of the lower support plate (3) abuts against the first boss (11), and the top surface of the lower support plate (3) is used for placing batteries; A partition (4), wherein opposite ends of the partition (4) are respectively fixedly arranged on the second clamping platform (22), and a second boss (41) is provided on the top surface of the partition (4); An upper support plate (5), wherein opposite ends of the upper support plate (5) are respectively arranged on the second clamping platform (22), the bottom surface of the upper support plate (5) abuts against the second boss (41), and the top surface of the upper support plate (5) is used for placing batteries.

2. The battery case according to claim 1, further comprising: A top cover (6) is detachably connected to the top end of the side panel (2) and is perpendicular to the side panel (2).

3. The battery case according to claim 2, wherein: The bottom surface of the top cover (6) is concave inwardly toward the direction away from the upper supporting plate (5) to form a groove (61).

4. The battery case according to claim 2, wherein: A first hole is provided at the top end of the side panel (2), and a connecting hole is provided at the edge of the top cover (6). A connector (7) is plugged into the first hole and the connecting hole so that the top cover (6) can be detachably connected to the top end of the side panel (2).

5. The battery case according to any one of claims 1 to 4, wherein: The side panels (2) are hollowed out.

6. The battery case according to any one of claims 1 to 4, wherein: A side surface of the first clamping platform (21) extends toward the lower support plate (3) to form a clamping strip (211), and opposite ends of the lower support plate (3) are respectively arranged on the top surface of the clamping strip (211).

7. The battery case according to any one of claims 1 to 4, wherein: The bottom ends of the side panels (2) are detachably connected to two opposite edges of the bottom panel (1).

8. The battery case according to claim 7, wherein: A second hole position is provided at the bottom end of the side panel (2), and mounting holes are provided at two opposite edges of the bottom panel (1). Connectors (7) are plugged into the second hole position and the mounting holes so that the bottom end of the side panel (2) can be detachably connected to the two opposite edges of the bottom panel (1).

9. Battery pack, including: The battery box according to any one of claims 1 to 8; One or more first batteries (81), wherein the first batteries (81) are arranged on the top surface of the lower support plate (3); One or more second batteries (82), wherein the second batteries (82) are arranged on the top surface of the upper support plate (5).

10. The battery pack according to claim 9, wherein: The lower support plate (3) and the side plate (2) are surrounded to form a first filling space, and a filler (80) is arranged in the first filling space so that the first battery (81) is fixedly arranged on the top surface of the lower support plate (3); and / or, the upper support plate (5) and the side plate (2) are surrounded to form a second filling space, and a filler (80) is arranged in the second filling space so that the second battery (82) is fixedly arranged on the top surface of the upper support plate (5).

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