Packing box for battery module and battery module group

Abstract

The present invention relates to a packing box for a battery module and a battery module group. The packing box for the battery module includes: a main body member made of a corrugated paper material, having an opening and capable of accommodating a plurality of battery modules; and a cover member made of a corrugated paper material and capable of being arranged to block the opening of the main body member. The main body member includes a lid portion that overlaps with the cover member when the main body member is closed. A window portion is formed in the cover member, and in a state where the cover member is arranged to block the opening of the main body member, a plurality of battery modules can be visually confirmed through the window portion. A holding portion capable of holding a label for a plurality of battery modules is formed in a portion of the cover member that is folded back in order to form the window portion.

Description

Technical Field

[0001] The present technology relates to a packing case for a battery module and a battery module group. Background Art

[0002] Conventionally, a packing case for a battery module in which a plurality of battery cells are stacked has been known. In Japanese Patent Laid-Open No. 2002-075308, International Publication No. 2013 / 031194, and Japanese Patent Laid-Open No. 2021-116069, a packing case for a battery module or corrugated paper for the packing case is disclosed.

[0003] When using a battery module, a label on which information related to the battery module is written is pasted at a position visible from the outside. The packing case for the battery module is required to have a function of packing the above-mentioned label together. In addition, when the packing case is opened, a function of easily confirming whether the battery module is stored in a safe state is required.

[0004] On the other hand, it is also required to reduce the cost required for the packing case. It is required to suppress an increase in cost and satisfy the above requirements. From the above viewpoints, conventional packing cases are not necessarily sufficient. Summary of the Invention

[0005] An object of the present technology is to provide a packing case for a battery module and a battery module group that can suppress an increase in cost, can easily pack a label on which information of the battery module is written, and can easily confirm that the battery module is stored in a safe state.

[0006] The packing case for a battery module according to the present technology includes: a main body member made of a corrugated paper material, having an opening and capable of accommodating a plurality of battery modules; and a cover member made of a corrugated paper material and capable of being set to block the opening of the main body member. The main body member includes a lid portion that overlaps the cover member when the main body member is closed. A window portion is formed in the cover member, and in a state where the cover member is set to block the opening of the main body member, a plurality of battery modules can be visually confirmed through the window portion. A holding portion capable of holding labels for a plurality of battery modules is formed in a portion of the cover member that is folded back to form the window portion.

[0007] The battery module group according to the present technology includes the above-mentioned packing case for a battery module and a plurality of battery modules accommodated in the packing case.

[0008] The above and other objects, features, aspects, and advantages of the present invention will become apparent from the following detailed description of the present invention understood in association with the accompanying drawings. Brief Description of the Drawings

[0009] Figure 1 It is an exploded perspective view of a packing case for a battery module.

[0010] Figure 2 It is a top view of the packing box of the battery module.

[0011] Figure 3 It is a view showing Figure 2 the state in which the upper lid of the packing box is opened from the state shown.

[0012] Figure 4 It is a view showing Figure 3 the state after removing the cover member from the state shown.

[0013] Figure 5 It is a view showing an intermediate process of holding a label on the packing box.

[0014] Figure 6 It is a view showing an intermediate process of holding a label on the packing box.

[0015] Figure 7 It is a view showing an intermediate process of holding a label on the packing box.

[0016] Figure 8 It is an enlarged view of the holding portion of the label. Detailed implementation mode

[0017] Hereinafter, embodiments of the present technology will be described. It should be noted that the same or equivalent parts are denoted by the same reference numerals, and the description thereof may not be repeated sometimes.

[0018] It should be noted that in the embodiments described below, when referring to the number, quantity, etc., unless otherwise specified, the scope of the present technology is not necessarily limited to the number, quantity, etc. In addition, in the following embodiments, each constituent element is not necessarily essential for the present technology unless otherwise specified.

[0019] It should be noted that in this specification, the descriptions of "comprise", "include", and "have" are open-ended. That is, it includes a certain structure, but does not exclude other structures other than the structure.

[0020] Figure 1 It is an exploded perspective view of the packing box of the battery module. As Figure 1 shown, the packing box 1 is a corrugated paper packing box used at the time of transporting the battery module, etc., and includes a main body member 10, a partition member 20, a cushioning member 30, and a cover member 40. In the packing box 1 according to an example, the main body member 10, the partition member 20, the cushioning member 30, and the cover member 40 are all made of corrugated paper material (corrugated cardboard), but for example, the partition member 20 and the cushioning member 30 may be made of materials other than corrugated paper material.

[0021] The main body member 10 includes a side portion 11, a lid portion 12, and a bottom surface portion 13. By closing the lid portion 12, the main body member 10 is sealed. Inside the main body member 10, a plurality of (two as an example) battery modules can be accommodated.

[0022] The partition member 20 includes a partition wall 21. The internal space of the main body member 10 is divided into two by the partition wall 21. One battery module is accommodated in each of the two divided spaces.

[0023] The buffer member 30 includes a first member 31, a second member 32, and a third member 33. The first member 31 and the second member 32 are provided at both end portions in the first direction (Y-axis direction) of the main body member 10 in a combined state. The third member 33 is provided in such a manner as to be clamped by the first member 31 along the Y-axis direction.

[0024] The cover member 40 can be set to block the opening of the main body member 10 in a state where the lid portion 12 of the main body member 10 is opened. Thus, the battery module supported by the buffer member 30 inside the main body member 10 can be covered from above. When the lid portion 12 of the main body member 10 is closed, the lid portion 12 overlaps with the cover member 40.

[0025] Figure 2 is a top view of the packaging box 1, Figure 3 indicating from Figure 2 the state shown in which the lid portion 12 of the packaging box 1 is opened, Figure 4 indicating from Figure 3 the state after the cover member 40 is removed from the state shown.

[0026] The packaging box 1 houses two battery modules. The two battery modules can be transported in a state of being housed in the packaging box 1. The packaging box 1 constitutes a battery module group formed by combining two battery modules.

[0027] As Figure 2 shown, the main body member 10 of the packaging box 1 has a rectangular shape with the Y-axis direction (first direction) as the long side direction and the X-axis direction (second direction) as the short side direction. When the lid portion 12 of the packaging box 1 is opened from the Figure 2 state shown, as Figure 3 shown, the cover member 40 provided so as to block the opening of the main body member 10 can be visually confirmed.

[0028] By using the cover member 40 to block the opening of the main body 10, it is possible to more effectively suppress foreign matter from entering the inside of the main body member 10 that houses the battery module. In addition, even when leakage occurs from the battery module, it is possible to suppress the liquid from leaking to the outside of the packaging box 1.

[0029] Like the main body 10, the cover 40 has a rectangular shape with its long side oriented in the Y-axis direction and its short side oriented in the X-axis direction. The cover 40 includes a plate-like portion 41, a window 42, a retaining portion 43, and a hand-holding hole 44. The plate-like portion 41 is the portion where the corrugated cardboard material exists in its original plate form.

[0030] The window 42 is formed by providing an opening in the corrugated cardboard material of the plate-shaped portion 41. The two battery modules 100 and 200 housed within the main body 10 can be visually inspected through the window 42. Furthermore, the partition wall 21 between the battery modules 100 and 200 can also be visually inspected through the window 42. Specifically, the window 42 is formed within a range extending across the partition wall 21.

[0031] Since the battery modules 100 and 200 can be visually confirmed through the window portion 42, even when the cover part 40 is installed, it can be confirmed that the battery modules 100 and 200 are safely housed in the main body part 10 (for example, the conductive parts are insulated as required).

[0032] The window portion 42 is formed in the center portion in the Y-axis direction and the X-axis direction of the plate-shaped portion 41. The window portion 42 has an outline extending in a direction obliquely intersecting the Y-axis direction and the X-axis direction. Figure 3 The illustrated window portion 42 has a substantially square shape with a side of approximately 100 mm, for example, but the shape of the window portion 42 is not limited thereto.

[0033] In the composition Figure 3 In the corrugated paper material of the cover part 40 shown, the X-axis direction is the corrugation direction. However, the corrugation direction is not limited to the X-axis direction, and can also be the Y-axis direction. The corrugation direction can extend in the width direction or in the length direction. The outline of the window portion 42 obliquely intersects with the corrugation direction of the corrugated paper material constituting the cover part 40. As a result, the strength reduction of the plate-like portion 41 around the window portion 42 can be suppressed.

[0034] The holding portion 43 holds a label ( Figure 8 The holding portion 43 is formed at a portion where the plate-shaped portion 41 of the cover member 40 is folded back to form the window portion 42.

[0035] The hand holes 44 are provided at both ends in the Y-axis direction of the plate-shaped portion 41. The hand holes 44 are formed for inserting fingers when removing the cover member 40.

[0036] When from Figure 3 When the cover member 40 is disassembled in the state shown, Figure 4 As shown, the two battery modules 100 and 200 are in a state where they can be taken out. In the battery modules 100 and 200, a plurality of battery cells are stacked in the Y-axis direction.

[0037] The battery modules 100 and 200 each have connectors 110 and 210. The connectors 110 and 210 are housed at both ends of the main body member 10 in the Y-axis direction. Therefore, in the state where the cover member 40 is installed, the connectors 110 and 210 are located at positions separated from the window portion 42. By separating the window portion 42 from the connectors 110 and 210, it is possible to effectively prevent foreign matters such as paper powder from entering the connectors 110 and 210.

[0038] Figures 5 to 7 It is a diagram showing an intermediate process of holding the label 300 on the packaging box 1. Figure 8 It is an enlarged view of the holding portion 43 of the label 300.

[0039] As Figure 5 shown, the folding-back portions 43A and 43B are folded back in the state where the label 300 is placed on the plate-shaped portion 41. As Figure 6 shown, in the state where the folding-back portions 43A and 43B are combined, the label 300 is in a state where it can be visually confirmed.

[0040] Next, as Figure 7 shown, the folding-back portion 43C is folded back and overlaps the folding-back portions 43A and 43B. Thereby, the holding portion 43 shown in Figure 8 is formed.

[0041] The folding-back portion 43C has an opening 43D at a portion overlapping the folding-back portions 43A and 43B. By providing the opening 43D, even in the state where the folding-back portion 43C is overlapped, the label 300 can still be visually confirmed.

[0042] In Figure 8 the state shown, the label 300 can be visually confirmed within a range of about 15 mm square, for example. Thus, when the lid portion 12 of the main body member 10 is opened, it is possible to reliably identify that the label 300 is held in the holding portion 43 of the cover member 40. Therefore, the operator who opens the box can immediately find the label 300.

[0043] In addition, the folding-back portion 43C has an engaging portion 43E that engages with the plate-shaped portion 41. By providing the engaging portion 43E, it is possible to maintain the state where the folding-back portion 43C is folded back and stably hold the label 300.

[0044] The label 300 records information related to the battery modules 100 and 200, such as information related to the voltage of the battery modules 100 and 200. After the battery modules 100 and 200 are taken out of the packaging box 1, the label 300 is pasted on the battery modules 100 and 200.

[0045] As described above, the packaging box 1 according to the present embodiment can package the label 300 together in a manner that can prevent the loss of the label 300 on which the information of the battery modules 100 and 200 is recorded without increasing the cost. In addition, it is possible to easily confirm the case where the battery modules 100 and 200 are stored in a safe state.

[0046] The embodiments of the present invention have been described, but the embodiments disclosed this time should be understood as illustrative in all respects and not restrictive. The scope of the present invention is shown by the claims, and is intended to include all modifications within the meaning and scope equivalent to the claims.

Claims

1. A packing box for a battery module, wherein, The packaging box of the battery module includes: A main body member made of corrugated paper material, having an opening and capable of accommodating a plurality of battery modules; and A cover member made of corrugated paper material and capable of being arranged to block the opening of the main body member, The cover member has a plate-like portion, The main body member includes a lid portion that overlaps with the cover member when the main body member is closed, A window portion is formed in the cover member by folding back the plate-like portion. In a state where the cover member is arranged to block the opening of the main body member, the plurality of battery modules can be visually confirmed through the window portion, A holding portion capable of holding a label for the plurality of battery modules is formed at a portion where the plate-like portion of the cover member is folded back to form the window portion.

2. The packaging box of the battery module according to claim 1, wherein, The packaging box of the battery module further includes a partition portion that divides the accommodation portions of the plurality of battery modules inside the main body member, In a state where the cover member is arranged to block the opening of the main body member, the partition portion can be visually confirmed through the window portion.

3. The packaging box of the battery module according to claim 1 or 2, wherein, The opening of the main body member and the cover member have a rectangular shape, and the rectangular shape has a long side along a first direction and a short side along a second direction orthogonal to the first direction, The window portion is formed such that the contour of the window portion intersects the first direction and the second direction.

4. The packaging box of the battery module according to claim 3, wherein, The corrugation direction of the corrugated paper material constituting the cover member extends along the first direction or the second direction.

5. The packaging box of the battery module according to claim 1 or 2, wherein, The window portion is formed such that the contour of the window portion intersects the corrugation direction of the corrugated paper material constituting the cover member.

6. A battery module group, wherein, The battery module group includes: The packaging box of the battery module according to any one of claims 1 to 5; and A plurality of battery modules accommodated in the packaging box.

7. The battery module group according to claim 6, wherein, The window portion is provided at a position separated from the connectors of the plurality of battery modules.

8. The battery module group according to claim 6 or 7, wherein, Information related to the voltage of the plurality of battery modules is recorded on the label.

9. The battery module group according to claim 6 or 7, wherein, At least a part of the label can be visually confirmed in a state where the label is held by the holding portion.

10. The battery module group according to claim 8, wherein, At least a part of the label can be visually confirmed in a state where the label is held by the holding portion.

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