Battery box and battery

Abstract

The utility model relates to a battery box and a battery, and relates to the technical field of power batteries, the battery box comprises a box body and a cross beam, the inner wall of the box body is provided with a first step body, the cross beam is arranged in the box body, the end part of the cross beam is provided with a second step body, and the first step body is matched with the second step body; the cross beam and the inner wall of the box body are enclosed to form an accommodating cavity for accommodating the battery cell, the first step body has a movement margin along a preset direction, the movement margin is used for allowing the second step body to move along the preset direction, and the preset direction represents the extrusion direction of the battery cell to the cross beam. The battery box and the battery provide movement allowance for the cross beam in the extrusion direction of the battery cell to the cross beam, the reaction pressure of the cross beam to the battery cell is reduced, and normal work of the battery cell is effectively guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of power batteries, and in particular to a battery box and a battery. Background Art

[0002] The crossbeams inside the battery box are used to secure the battery cells and prevent them from moving or tilting. In related art, the crossbeams are welded to the inner wall of the battery box. During assembly, the cells may press against the crossbeams. However, the battery box in related art does not provide enough space for the crossbeams to move, resulting in significant reaction pressure from the crossbeams on the cells, affecting their normal operation. Utility Model Content

[0003] In order to solve the above technical problems, an embodiment of the present application provides a battery box and a battery, which provides a movement margin for the beam along the extrusion direction of the battery cell on the beam, reduces the reaction pressure of the beam on the battery cell, and effectively ensures the normal operation of the battery cell.

[0004] In a first aspect, a battery box is provided, comprising:

[0005] A box body, wherein the inner wall of the box body is provided with a first step body;

[0006] A crossbeam is provided in the box body, and a second step body is provided at the end of the crossbeam. The first step body cooperates with the second step body, and the crossbeam and the inner wall of the box body enclose a cavity for accommodating the battery cell;

[0007] The first step body has a movement margin along a preset direction, and the movement margin is used for allowing the second step body to move along the preset direction; wherein the preset direction represents the extrusion direction of the battery cell on the beam.

[0008] According to the first aspect of the present application, opposite ends of the first step body extend to opposite sides of the box body respectively.

[0009] According to the first aspect of the present application, a first connection hole is provided on the top wall of the first step body, and a second connection hole is provided on the top wall of the second step body, and the first connection hole is connected to the second connection hole in correspondence;

[0010] The battery box further includes a first fastener detachably engaged with the first connection hole and the second connection hole.

[0011] According to the first aspect of the present application, a first groove is recessed on the inner wall of the box body, and the side walls and bottom wall of the first groove form the first step body.

[0012] According to the first aspect of the present application, the battery box further includes:

[0013] The connecting hinge comprises a first connecting piece and a second connecting piece connected to each other;

[0014] a second fastener, detachably connecting the first connecting piece and the side wall of the first groove;

[0015] A third fastener is used to detachably connect the second connecting piece and the side wall of the crossbeam.

[0016] According to the first aspect of the present application, a second groove is formed on the side wall of the crossbeam, and the second connecting piece is embedded in the second groove.

[0017] According to the first aspect of the present application, a third groove is recessed on the inner wall of the box body, and the peripheral walls of the third groove are connected end to end to form the first step body.

[0018] According to the first aspect of the present application, the battery box further includes:

[0019] The elastic expansion body is arranged in the third groove, and the elastic expansion body is used to abut the first step body and the second step body to fix the crossbeam.

[0020] According to the first aspect of the present application, there are multiple crossbeams, and the multiple crossbeams are distributed in parallel in the box. The accommodating cavity is formed between two adjacent crossbeams or between one crossbeam and the inner wall of the box.

[0021] In a second aspect, a battery is also provided, comprising:

[0022] The battery box as described in the previous embodiment;

[0023] The battery cell is arranged in the accommodating cavity.

[0024] The battery box and battery provided in the embodiment of the present application include a box body and a crossbeam. The inner wall of the box body is provided with a first step body, the crossbeam is provided in the box body, and the end of the crossbeam is provided with a second step body. The first step body cooperates with the second step body, and the crossbeam and the inner wall of the box body enclose a receiving cavity for accommodating battery cells. During the assembly of battery cells, there is a situation where the battery cells squeeze the crossbeam. By utilizing the movement margin on the first step body, the second step body can move along a preset direction (the squeezing direction of the battery cells on the crossbeam), reducing the squeezing force of the battery cells on the crossbeam, thereby alleviating the reaction force on the battery cells and effectively ensuring the normal operation of the battery cells. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The above and other purposes, features, and advantages of the present application will become more apparent through a more detailed description of the embodiments of the present application in conjunction with the accompanying drawings. The accompanying drawings are intended to provide a further understanding of the embodiments of the present application and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the present application and do not constitute a limitation of the present application. In the drawings, the same reference numerals generally represent the same components or steps.

[0026] Figure 1 A schematic structural diagram of a battery provided as an exemplary embodiment of the present application.

[0027] Figure 2 for Figure 1 Enlarged schematic diagram of point A in the middle.

[0028] Figure 3 A schematic structural diagram of a box provided as an exemplary embodiment of the present application.

[0029] Figure 4 A schematic structural diagram of a beam provided as an exemplary embodiment of the present application.

[0030] Figure 5 A schematic structural diagram of a battery provided as another exemplary embodiment of the present application.

[0031] Figure 6 for Figure 5 Enlarged schematic diagram of point B in the middle.

[0032] Figure 7 A schematic structural diagram of a battery provided as another exemplary embodiment of the present application.

[0033] Figure 8 for Figure 7 Enlarged schematic diagram of point C in the middle.

[0034] Figure 9 A schematic structural diagram of a battery provided as another exemplary embodiment of the present application.

[0035] Figure 10 for Figure 9 Enlarged schematic diagram of point D in the middle.

[0036] Figure markings: 100-battery box; 110-box body; 111-first step body; 112-first connecting hole; 113-first groove; 114-second groove; 115-third groove; 120-crossbeam; 121-second step body; 122-second connecting hole; 130-accommodating chamber; 140-connecting hinge; 141-first connecting plate; 142-second connecting plate; 150-elastic expansion body; 160-second fastener; 170-third fastener; 200-battery; 210-battery cell. DETAILED DESCRIPTION

[0037] Below, the exemplary embodiments according to the present application will be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application, and it should be understood that the present application is not limited to the exemplary embodiments described herein.

[0038] Figure 1 This is a schematic diagram of the structure of a battery provided by an exemplary embodiment of the present application. Figure 1 As shown, the battery 200 provided in the embodiment of the present application may include a battery box 100 and a battery cell 210 . The battery box 100 is provided with a receiving cavity 130 . The receiving cavity 130 is used to accommodate the battery cell 210 . The battery box 100 protects the battery cell 210 .

[0039] Figure 2 for Figure 1 The enlarged schematic diagram of point A in the figure. Figure 1 and Figure 2 As shown, the battery box 100 provided in the embodiment of the present application may include a box body 110 and a crossbeam 120. The crossbeam 120 is arranged in the box body 110 along the width direction of the box body 110. The crossbeam 120 and the inner wall of the box body 110 form the aforementioned accommodating cavity 130.

[0040] like Figure 1 and Figure 2 As shown, the inner wall of the box body 110 is provided with a first step body 111, and the end of the beam 120 is provided with a second step body 121. The first step body 111 cooperates with the second step body 121, and the first step body 111 moves along a preset direction ( Figure 1 There is a movement margin (in the direction indicated by the arrows E and F), and the movement margin can allow the second step body 121 to move along the preset direction. The aforementioned preset direction can be understood as the extrusion direction of the battery cell 210 on the beam 120.

[0041] Specifically, in actual applications, during the assembly of the battery cell 210, there is a situation where the battery cell 210 squeezes the beam 120. By utilizing the movement margin on the first step body 111, the second step body 121 can move along the preset direction, reducing the squeezing force of the battery cell 210 on the beam 120, thereby alleviating the reaction force on the battery cell 210 and effectively ensuring the normal operation of the battery cell 210.

[0042] It should be understood that the length of the movement margin can be set according to actual conditions, and the embodiment of the present application does not specifically limit the length of the movement margin.

[0043] like Figure 1As shown, the opposite ends of the first step body 111 extend to the opposite sides of the box body 110 respectively. In this way, the second step body 121 has a larger movable range on the first step body 111, which can facilitate the setting of a larger range of movable margin and improve the adaptability of the beam 120 to battery cells 210 of different thicknesses.

[0044] like Figure 1 As shown, there are multiple crossbeams 120, and the multiple crossbeams 120 are distributed in parallel in the box body 110. An accommodating cavity 130 is formed between two adjacent crossbeams 120 or between a crossbeam 120 and the inner wall of the box body 110. It should be understood that when there are multiple crossbeams 120, an accommodating cavity 130 can be formed between a crossbeam 120 near the inner wall of the box body 101 and the inner wall of the box body 110. Different accommodating cavities 130 can be used to accommodate different battery cells 210 and limit the different battery cells 210, effectively improving the overall capacity of the battery box 100.

[0045] Figure 3 A schematic structural diagram of a box provided as an exemplary embodiment of the present application. Figure 4 This is a schematic diagram of the structure of a beam provided by an exemplary embodiment of the present application. Figure 3 and Figure 4 As shown, the top wall of the first step 111 is provided with a first connection hole 112, and the top wall of the second step 121 is provided with a second connection hole 122. When the second step 121 and the first step 111 cooperate with each other, the first connection hole 112 and the second connection hole 122 are correspondingly connected. The battery box 100 may also include a first fastener (not shown in the figure), which is detachably engaged with the first connection hole 112 and the second connection hole 122. In this way, the crossbeam 120 can be relatively fixed to the box body 110, while improving the overall strength of the box body 110 and ensuring that the crossbeam 120 can limit the battery cells 210.

[0046] In one embodiment, the first fastener may include a bolt, a screw, a pin, or the like.

[0047] Figure 5 A schematic structural diagram of a battery provided as another exemplary embodiment of the present application. Figure 6 for Figure 5 The enlarged schematic diagram of point B in the figure. Figure 5 and Figure 6 As shown, the inner wall of the box body 110 is recessed with a first groove 113, and the side walls and bottom wall of the first groove 113 form the aforementioned first step 111. The second step 121 is inserted into the first groove 113 and cooperates with the first step 111. The second step 121 occupies a portion of the area within the first groove 113, and the remaining area within the first groove 113 can serve as a movement margin for the second step 121 to move along a predetermined direction.

[0048] like Figure 6 As shown, the battery box 100 may also include a connecting hinge 140, a second fastener 160 and a third fastener 170, the connecting hinge 140 includes a first connecting piece 141 and a second connecting piece 142 connected to each other, the second fastener 160 detachably connects the first connecting piece 141 and the side wall of the first groove 113, and the third fastener 170 detachably connects the second connecting piece 142 and the side wall of the beam 120.

[0049] It should be understood that the connection between the second fastener 160 and the third fastener 170 can ensure that the beam 120 is relatively fixed to the box body 110, while improving the overall strength of the box body 110 and ensuring that the beam 120 plays a limiting role on the battery cell 210.

[0050] In one embodiment, the second fastener 160 may include a bolt, a screw, a pin, or the like.

[0051] In one embodiment, the third fastener 170 may include a bolt, a screw, a pin, etc.

[0052] like Figure 6 As shown, the side wall of the beam 120 is recessed with a second groove 114, and the second connecting piece 142 is embedded in the second groove 114. The second groove 114 limits the second connecting piece 142 and facilitates the assembly of the second connecting piece 142, thereby effectively improving assembly efficiency.

[0053] Figure 7 A schematic structural diagram of a battery provided as another exemplary embodiment of the present application. Figure 8 for Figure 7 The enlarged schematic diagram of point C in the figure. Figure 7 and Figure 8 As shown, the inner wall of the housing 110 is provided with a third groove 115, and the peripheral walls of the third groove 115 are connected end to end to form the aforementioned first step 111. The second step 121 is inserted into the third groove 115 and cooperates with the first step 111. The second step 121 occupies a portion of the area within the third groove 115, and the remaining area within the third groove 115 can be used as a movement margin for the second step 121 to move in a predetermined direction.

[0054] It should be noted that the third groove 115 differs from the first groove 113 in that the peripheral walls of the third groove 115 are connected end to end and the third groove 115 has a top wall. The top wall of the third groove 115 can be used to prevent the second step 121 from escaping from the third groove 115, further ensuring the assembly reliability of the crossbeam 120.

[0055] Figure 9A schematic structural diagram of a battery provided as another exemplary embodiment of the present application. Figure 10 for Figure 9 The enlarged schematic diagram of D in the figure. Figure 9 and Figure 10 As shown, the battery box 100 may further include an elastic expander 150 , which is disposed in the third groove 115 . The elastic expander 150 may fill the space in the third groove 115 , and the elastic expander 150 abuts against the second step 121 , so that the beam 120 and the box body 110 are relatively fixed.

[0056] It should be understood that compared with the aforementioned method of fixing the beam 120 and the box body 110 using the first fastener, the second fastener 160 and the third fastener 170, the method of fixing the beam 120 and the box body 110 using the elastic expander 150 is suitable for grooves of different sizes, has a wider range of applications, and is more convenient and quick to operate.

[0057] In one embodiment, the material of the elastic expansion body can be rubber, polyvinyl chloride, etc.

[0058] The basic principles of the present application have been described above in conjunction with specific embodiments. However, it should be noted that the advantages, strengths, and effects mentioned in this application are merely illustrative and not restrictive, and it should not be assumed that these advantages, strengths, and effects are required of each embodiment of this application. In addition, the specific details disclosed above are merely illustrative and facilitating understanding, and are not restrictive. The above details do not limit this application to necessarily being implemented using the above specific details.

[0059] The block diagrams of the devices, devices, equipment, and systems involved in this application are merely illustrative examples and are not intended to require or imply that they must be connected, arranged, or configured in the manner shown in the block diagrams. As will be appreciated by those skilled in the art, these devices, devices, equipment, and systems can be connected, arranged, or configured in any manner. Words such as "include," "comprise," "have," and the like are open-ended words, meaning "including but not limited to," and can be used interchangeably therewith. The words "or" and "and" used herein refer to the words "and / or" and can be used interchangeably therewith, unless the context clearly indicates otherwise. The word "such as" used herein refers to the phrase "such as but not limited to," and can be used interchangeably therewith.

[0060] It should also be noted that in the apparatus, device, and method of the present application, each component or each step can be decomposed and / or recombined, and such decomposition and / or recombination should be regarded as equivalent solutions of the present application.

[0061] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other aspects without departing from the scope of the present application. Therefore, the present application is not intended to be limited to the aspects shown herein, but rather to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0062] The above description has been provided for the purpose of illustration and description. Furthermore, this description is not intended to limit the embodiments of the present application to the forms disclosed herein. Although a number of example aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, alterations, additions, and sub-combinations thereof.

Claims

1. A battery box, characterized in that: include: A box body (110), wherein the inner wall of the box body (110) is provided with a first step body (111); A crossbeam (120) is arranged in the box body (110); a second step body (121) is arranged at the end of the crossbeam (120); the first step body (111) cooperates with the second step body (121); the crossbeam (120) and the inner wall of the box body (110) enclose a receiving cavity (130) for receiving the battery cell (210); The first step body (111) has a movement margin along a preset direction, and the movement margin is used to allow the second step body (121) to move along the preset direction; wherein the preset direction represents the extrusion direction of the battery cell (210) on the crossbeam (120).

2. The battery box according to claim 1, characterized in that: The opposite ends of the first step body (111) extend to the opposite sides of the box body (110) respectively.

3. The battery box according to claim 1, characterized in that: The top wall of the first step body (111) is provided with a first connection hole (112), the top wall of the second step body (121) is provided with a second connection hole (122), and the first connection hole (112) is correspondingly connected to the second connection hole (122); The battery box also includes a first fastener, which is detachably engaged with the first connecting hole (112) and the second connecting hole (122).

4. The battery box according to claim 1, characterized in that: The inner wall of the box body (110) is provided with a first groove (113), and the side wall and the bottom wall of the first groove (113) form the first step body (111).

5. The battery box according to claim 4, characterized in that: The battery box also includes: A connecting hinge (140) comprising a first connecting piece (141) and a second connecting piece (142) connected to each other; a second fastener (160) for detachably connecting the first connecting piece (141) and the side wall of the first groove (113); A third fastener (170) is used to detachably connect the second connecting piece (142) and the side wall of the crossbeam (120).

6. The battery box according to claim 5, characterized in that: A second groove (114) is recessed on the side wall of the crossbeam (120), and the second connecting piece (142) is embedded in the second groove (114).

7. The battery box according to claim 1, characterized in that: A third groove (115) is recessed on the inner wall of the box body (110), and the peripheral walls of the third groove (115) are connected end to end to form the first step body (111).

8. The battery box according to claim 7, characterized in that: The battery box also includes: The elastic expansion body (150) is disposed in the third groove (115), and the elastic expansion body (150) is used to abut against the first step body (111) and the second step body (121) to fix the crossbeam (120).

9. The battery box according to any one of claims 1 to 8, characterized in that: There are a plurality of crossbeams (120), and the plurality of crossbeams (120) are distributed in parallel in the box body (110), and the accommodation cavity (130) is formed between two adjacent crossbeams (120) or between one crossbeam (120) and the inner wall of the box body (110).

10. A battery, characterized in that: include: A battery box as claimed in any one of claims 1 to 9; The battery cell (210) is disposed in the accommodating cavity (130).

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