Battery packing material and shock-absorbing pad

Abstract

To reduce friction damage of an appearance of a battery.SOLUTION: A tray 110 includes: battery housing parts 132 and 142 that have a concave capable of inserting a battery pack, and are opposite each other; and a pedestal base 117 that is provided between them. The pedestal base 117 includes an upper surface 117a that is nealy vertical to the depth direction of the concave of the battery housing parts 132 and 142. A shock-absorbing pad 150 includes: a plate-like bottom member 151 that is installed to an upper surface 117a; and a plate-like first member 152 and a plate-like second member 153 that are stood from an end part on each side of the battery housing parts 132 and 142 of the bottom member 151. The first member 152 energizes the battery pack 312 in the battery housing part 132 to the direction directed to the battery housing part 132 from the battery housing part 142. The second member 153 energizes the battery pack 322 in the battery housing part 142 to the direction opposite to the energization direction of the first member 152.SELECTED DRAWING: Figure 6

Description

Technical Field

[0001] The present invention relates to a battery packaging material and a cushioning pad.

Background Art

[0002] When transporting batteries, a packaging material for accommodating a plurality of batteries is used. For example, there has been a proposal for a battery packaging box in which two hexahedral trays capable of accommodating a plurality of batteries side by side are connected in series with the upper surfaces of the respective trays open. The battery packaging box can be in a state where the open surface of one tray and the open surface of the other tray are overlapped.

[0003] In addition, there has also been a proposal for a packaging container including an interior member that accommodates a plurality of flat rectangular batteries arranged in series in a vertical posture with the flat surfaces before and after the batteries facing each other, and a storage box that stores the interior member inside. The interior member of the packaging container is integrally formed of a bottom wall on which the flat rectangular battery is placed and a pair of cushioning materials arranged before and after the interior member. In the packaging container, the flat rectangular battery is arranged between the two cushioning materials.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0005] When transporting the batteries accommodated in the packaging material, there is a possibility that scratches may occur on the appearance such as the label attached to the batteries due to vibrations and impacts during transportation. On one side, an object of the present invention is to reduce scratches on the battery appearance.

Means for Solving the Problems

[0006] In one aspect, a battery packaging material including a tray and a buffer pad is provided. The tray includes a first storage portion and a second storage portion facing each other, each having a recess into which a battery can be inserted, and a pedestal provided between the first storage portion and the second storage portion, the pedestal having a surface substantially perpendicular to the depth direction of the recess. The buffer pad includes a plate-shaped bottom member installed on the surface, a plate-shaped first member rising from a first end on the side of the first storage portion of the bottom member and biasing a first battery stored in the first storage portion in a direction from the second storage portion toward the first storage portion, and a plate-shaped second member rising from a second end on the side of the second storage portion of the bottom member and biasing a second battery stored in the second storage portion in a direction from the first storage portion toward the second storage portion.

[0007] Also, in one aspect, a buffer pad is provided. The buffer pad includes a bottom member, a first member, and a second member. The bottom member, the first member, and the second member are plate-shaped. The bottom member is installed on a surface of a tray that includes a first storage portion and a second storage portion facing each other, each having a recess into which a battery can be inserted, and a pedestal provided between the first storage portion and the second storage portion, the pedestal having a surface substantially perpendicular to the depth direction of the recess. The first member rises from a first end on the side of the first storage portion of the bottom member and biases a first battery stored in the first storage portion in a direction from the second storage portion toward the first storage portion. The second member rises from a second end on the side of the second storage portion of the bottom member and biases a second battery stored in the second storage portion in a direction from the first storage portion toward the second storage portion.

Advantages of the Invention

[0008] On one side, it is possible to reduce scratches on the battery appearance.

Brief Description of the Drawings

[0009]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Mode for Carrying Out the Invention

[0010] Hereinafter, this embodiment will be described with reference to the drawings. FIG. 1 is a perspective view of a battery packaging material. The battery packaging material 100 is used for housing and transporting batteries. A plurality of battery packs are housed in the battery packaging material 100. The battery pack is one that packages one or more batteries. The battery pack may also be referred to as an assembled battery, a battery package, etc. For example, the battery pack can be one with lead wires and terminals. The battery packaging material 100 includes a tray 110 and a buffer pad 150. The tray 110 has a rectangular parallelepiped shape, and depressions for housing batteries and terminals are provided on the upper surface side. The material of the tray 110 is, for example, resin. The tray 110 has terminal storage portions 111, 112, ribs 113, 114, recesses 115, 116, and battery storage portion rows 130, 140.

[0011] The terminal storage portions 111, 112 are grooves for housing the terminals attached to the lead wires extending from the battery pack. The terminal storage portions 111, 112 are provided along the battery storage portion rows 130, 140 and outside the battery storage portion rows 130, 140.

[0012] The ribs 113 and 114 are provided on the wall surfaces of the left and right outer peripheral portions of the tray 110 facing the drawing. When the trays 110 are stacked in multiple layers, they fit with the ribs on the outer peripheral portion of the upper tray and the ribs on the outer peripheral portion of the lower tray. The recesses 115 and 116 fit with the convex portions on the back side of the corresponding recesses of the upper tray when the trays 110 are stacked in multiple layers. Also, convex portions are formed on the back side of the recesses 115 and 116, and the convex portions fit with the corresponding recesses of the lower tray. Note that the recesses 115 and 116 are provided not only on the front side surface of the tray 110 but also on the back side surface of the tray 110.

[0013] Each of the battery storage unit rows 130 and 140 is such that a plurality of battery storage units are arranged in a row along the major axis of the tray 110 when viewed from above the tray 110, that is, in the direction from the front side to the back side of the drawing. For example, the battery storage unit row 130 includes a battery storage unit 131. The battery storage unit 131 is located closest to the front side facing the drawing among the plurality of battery storage units in the battery storage unit row 130. Also, the battery storage unit row 140 includes a battery storage unit 141. The battery storage unit 141 is located closest to the front side facing the drawing among the plurality of battery storage units in the battery storage unit row 140.

[0014] Here, as an example, the battery storage unit is assumed to store a battery pack of a cylindrical battery. The battery pack may be, for example, a plurality of batteries arranged in a row and packaged with a shrink pack, paper, etc. such that the side surfaces (that is, the surfaces other than the two circular surfaces facing each other) of adjacent batteries are in contact. The size of the battery can be, for example, single form, double form, triple form, quadruple form, quintuple form, etc. Also, the shape of the battery may be a rectangular parallelepiped. Further, the type of the battery may be a primary battery such as a manganese dry battery or an alkaline manganese battery, or a secondary battery such as a nickel-metal hydride battery or a lithium-ion battery. Also, as described above, the battery pack is one in which one or more batteries are packaged. Therefore, it can also be said that the battery storage unit is for storing batteries.

[0015] The battery storage part has a depression for storing the battery pack such that the direction of the minor axis of the tray 110 when viewed from above is the direction in which the batteries of the battery pack are arranged. A battery storage part row 130 is formed by a plurality of battery storage parts forming a column in a direction perpendicular to the direction in which the batteries of the battery pack are arranged. Similarly to the battery storage part row 130, a battery storage part row 140 is formed by a plurality of battery storage parts forming a column.

[0016] The number of the plurality of battery storage parts included in each of the battery storage part rows 130 and 140 is the same. One battery storage part of the battery storage part row 130 is provided at a position facing the corresponding battery storage part in the battery storage part row 140 with the buffer pad 150 interposed therebetween. For example, the battery storage parts 131 and 141 are two battery storage parts facing each other.

[0017] Note that the battery storage part is a name for distinguishing from the terminal storage part. The battery packaging material 100 may not have a terminal storage part. For example, the battery packaging material 100 may store a battery pack without terminals or lead wires. When the distinction in name from the terminal storage part is unnecessary, the battery storage part may simply be referred to as a "storage part" for storing the battery.

[0018] The buffer pad 150 suppresses the lateral sway of the battery pack stored in the battery storage part rows 130 and 140 toward the drawing. The buffer pad 150 is provided between the battery storage part rows 130 and 140 along the direction of the major axis of the tray 110 when viewed from above. The cross-section of the buffer pad 150 is U-shaped.

[0019] As will be described later, the buffer pad 150 has a plate-shaped bottom member, a plate-shaped first member rising from the end of the bottom member on the battery storage part 131 side, and a plate-shaped second member rising from the end of the bottom member on the battery storage part 141 side.

[0020] Figure 2 is a perspective view of the tray. The tray 110 further has a pedestal 117, protrusions 118 and 119, and an edge 120. In FIG. 2, the reference numerals of the terminal storage portions 111 and 112, the ribs 113 and 114, and the recesses 115 and 116 are omitted.

[0021] The pedestal 117 is provided between the battery storage portion rows 130 and 140 along the direction of the long axis of the tray 110 when viewed from above the tray 110. The pedestal 117 is used for installing the cushioning pad 150. The upper surface of the pedestal 117, that is, the top surface, is substantially perpendicular to the depth direction of the depression of each battery storage portion. The cushioning pad 150 is installed on the tray 110 by placing its bottom member on the upper surface of the pedestal 117. The protrusion 118 is provided at the end of the pedestal 117 on the side of the battery storage portion 131. The protrusion 119 is provided at the end of the pedestal 117 on the side of the battery storage portion 141. Although the reference numerals are omitted, the pedestal 117 has a plurality of protrusions including the protrusion 118 on the side of the battery storage portion row 130. Also, the pedestal 117 has a plurality of protrusions including the protrusion 119 on the side of the battery storage portion row 140. These protrusions including the protrusions 118 and 119 are provided so as to sandwich the cushioning pad 150 from both the left and right sides, and restrict the lateral movement of the cushioning pad 150 placed on the pedestal 117. Thereby, even if the battery pack is not stored in the tray 110, the cushioning pad 150 can be installed on the tray 110 and transported. Also, the cushioning pad 150 can be appropriately positioned so as to be located between two opposing battery storage portions or between two opposing battery packs stored in the two battery storage portions. For example, the protrusions on the side of the battery storage portion row 130 may be referred to as the first protrusions. The protrusions on the side of the battery storage portion row 140 may be referred to as the second protrusions.

[0022] Here, the recesses of each battery storage section including the battery storage sections 131 and 141 can accommodate a battery pack with a first number (for example, four) of batteries in a set, and store the inserted battery pack. When storing a battery pack with a second number (for example, three) of batteries in a set in each battery storage section, a space corresponding to the difference in the number between the first number and the second number (for example, one battery) is generated in each battery storage section. In that case, by installing the buffer pad 150, the buffer pad 150 can fill the space, and it is possible to transport the battery pack with the second number of batteries in a set without scratching the appearance. Also, the tray 110 can be shared for storing a battery pack with a first number (for example, four) of batteries in a set and storing a battery pack with a second number (for example, three) of batteries in a set. The "battery pack" in the following description corresponds to the "battery pack with the second number of batteries in a set". Also, the above "first number" can be a number of 2 or more. The "second number" is a number smaller than the first number and can be a number of 1 or more.

[0023] FIG. 3 is a perspective view of the buffer pad. The buffer pad 150 has a bottom member 151, a first member 152, and a second member 153. As described above, the bottom member 151, the first member 152, and the second member 153 are plate-shaped. For example, the buffer pad 150 is created by bending both end portions of a single sheet of corrugated cardboard at about 90 degrees at predetermined positions 151a and 151b. Here, the position 151a is a position corresponding to the end portion (first end portion) on the side of the battery storage section 131 of the bottom member 151. Also, the position 151b is a position corresponding to the end portion (second end portion) on the side of the battery storage section 141 of the bottom member 151. For this reason, it can also be said that the position 151a is the first end portion on the side of the battery storage section 131 (battery storage section row 130) of the bottom member 151. Also, the position 151b can also be said to be the second end portion on the side of the battery storage section 141 (battery storage section row 140) of the bottom member 151.

[0024] The portion that rises by bending the cardboard at position 151a corresponds to the first member 152. The portion that rises by bending the cardboard at position 151b corresponds to the second member 153. For example, each of the first member 152 and the second member 153 is formed such that its upper end is at a position lower than the upper side of the battery pack inserted into each storage portion. Thereby, it is possible to stack a plurality of battery-pack-containing states of the battery packaging material 100 in multiple layers.

[0025] As described above, by bending the cardboard to form the first member 152, the first member 152 is provided with an elastic force that acts in the leftward direction toward the drawing with position 151a as a fulcrum. Similarly, by bending the cardboard to form the second member 153, the second member 153 is provided with an elastic force that acts in the rightward direction toward the drawing with position 151b as a fulcrum.

[0026] Therefore, when the buffer pad 150 is installed on the tray 110, it biases each battery pack stored in the battery storage section row 130 in the direction from the battery storage section 141 (battery storage section row 140) side toward the battery storage section 131 (battery storage section row 130) side. Also, when the buffer pad 150 is installed on the tray 110, it biases each battery pack stored in the battery storage section row 140 in the direction from the battery storage section 131 (battery storage section row 130) side toward the battery storage section 141 (battery storage section row 140) side.

[0027] Note that the cardboard used to create the buffer pad 150 may be made of paper or plastic. Figure 4 is a perspective view of the battery packaging material with the battery stored.

[0028] The battery packaging material 200 illustrates the case where the battery-pack groups 310 and 320 are stored in the battery packaging material 100 in a state where the aforementioned battery pack is not stored. In Figure 4, the reference numerals of the ribs 113 and 114, the recesses 115 and 116, the pedestal 117, the protrusions 118 and 119, the edge 120, and the battery storage section rows 130 and 140 provided in the tray 110 of the battery packaging material 200 are omitted.

[0029] The battery pack group 310 is a plurality of battery packs stored in each battery storage section of the battery storage section row 130. For example, the battery pack group 310 includes a battery pack 311 stored in the battery storage section 131.

[0030] The battery pack group 320 is a plurality of battery packs stored in each battery storage section of the battery storage section row 140. For example, the battery pack group 320 includes a battery pack 321 stored in the battery storage section 141.

[0031] The battery pack 321 has a label 321a, a lead wire 321b, and a terminal 321c. The label 321a is a product label affixed to the outside of the battery pack 321 and printed with product information such as the product name.

[0032] The lead wire 321b is an accessory attached to the battery pack 321 and is a component for extracting electric power from the battery inside the battery pack 321. The lead wire 321b is insulated and coated with a resin material. The terminal 321c is a component connected to the end of the lead wire 321b on the side opposite to the battery pack 321. The terminal 321c is used for connection to a predetermined device.

[0033] Other battery packs including the battery pack 311 also have a label, a lead wire, and a terminal, similar to the battery pack 321. The terminals of each battery pack are stored in a terminal storage section (terminal storage section 111 or terminal storage section 112) corresponding to the battery pack. For example, the terminal 321c is stored in the terminal storage section 112.

[0034] Thus, the battery packaging material 200 may include a first battery inserted into each battery storage section (first storage section) of the battery storage section row 130 and a second battery inserted into each battery storage section (second storage section) of the battery storage section row 140.

[0035] FIG. 5 is a perspective sectional view of the battery packaging material. In FIG. 5, a perspective view of the XX' cross-section of the battery packaging material 200 in FIG. 4 is shown. In FIG. 5, the reference numerals of the terminal storage portions 111, 112, ribs 113, 114, recesses 115, 116, pedestal 117, protrusions 118, 119, edge 120 and the battery storage portion rows 130, 140 of the tray 110 are omitted. The tray 110 further has battery storage portion frames 121, 122 and battery storage portions 132, 142.

[0036] The battery storage portion 132 is a battery storage portion corresponding to the XX' cross-section location included in the battery storage portion row 130. The battery pack 312 among the battery pack groups 310 is stored in the battery storage portion 132. The battery storage portion 142 is a battery storage portion corresponding to the XX' cross-section location included in the battery storage portion row 140. The battery pack 322 among the battery pack groups 320 is stored in the battery storage portion 142.

[0037] The battery storage portion frame 121 is a frame of the battery storage portion 132. The battery storage portion frame 122 is a frame of the battery storage portion 142. The battery storage portion frames 121, 122 form depressions so as to surround the sides of the battery packs 312, 322. Other battery storage portions are also formed by battery storage portion frames similar to the battery storage portions 132, 142.

[0038] The central side portions of the tray 110 in the battery storage portion frames 121, 122 form the pedestal 117. The battery storage portion frames 121, 122 are connected via the upper surface of the pedestal 117. Pairs of other opposing battery storage portion frames also form the pedestal 117 and are connected via the upper surface of the pedestal 117.

[0039] FIG. 6 is a cross-sectional view of the battery packaging material. In FIG. 6, a front view of the XX' cross-section of the battery packaging material 200 in FIG. 4 is shown. In FIG. 6, for the battery pack 322, the label 322a, lead wire 322b and terminal 322c of the battery pack 322 are shown, but for the battery pack 321, the reference numerals for the label, lead wire and terminal are omitted.

[0040] The buffer pad 150 has its bottom member 151 placed on the upper surface 117a of the pedestal 117. The height of the upper surface 117a of the pedestal 117 from the bottom 125 of the tray 110 is lower than the height from the bottom 125 to the edge 120 of the tray 110. That is, when the tray 110 is placed on a horizontal plane, the height of the upper surface 117a of the pedestal 117 from the horizontal plane is lower than the height of the edge 120 surrounding the outer periphery of the tray 110 from the horizontal plane. Thereby, when the buffer pad 150 is placed on the upper surface 117a of the pedestal 117, the movement of the buffer pad 150 in the depth direction in FIG. 6 is restricted by the edge 120, preventing the buffer pad 150 from falling off the tray 110.

[0041] Also, the first member 152 of the buffer pad 150 biases the battery pack 312 or the battery included in the battery pack 312 in the direction from the battery storage portion 142 toward the battery storage portion 132 (the direction of the leftward arrow in FIG. 6). The first member 152 similarly biases the other battery packs in the battery pack group 310 or the batteries included in the battery pack in the direction from the battery storage portion 142 toward the battery storage portion 132.

[0042] The second member 153 of the buffer pad 150 biases the battery pack 322 or the battery included in the battery pack 322 in the direction from the battery storage portion 132 toward the battery storage portion 142 (the direction of the rightward arrow in FIG. 6). The second member 153 similarly biases the other battery packs in the battery pack group 320 or the batteries included in the battery pack in the direction from the battery storage portion 132 toward the battery storage portion 142.

[0043] Therefore, during the transportation of each battery pack stored in the battery packaging material 200, the shaking of each battery pack in the left - right direction toward FIG. 6 is reduced by the buffer pad 150. Thereby, the rubbing scratches on the appearance including the label of each battery pack are reduced. For example, by reducing the left - right shaking of the battery packs 312 and 322 by the buffer pad 150, the rubbing scratches on the appearance including the label 322a of the battery pack 322 and the appearance including the label of the battery pack 312 are reduced.

[0044] Note that the battery storage part 132 may be referred to as the "first storage part". The battery storage part 142 may be referred to as the "second storage part". The battery included in the battery pack 312 may be referred to as the "first battery". The battery included in the battery pack 322 may be referred to as the "second battery".

[0045] FIG. 7 shows a battery packaging material of a comparative example. The battery packaging material 400 of the comparative example has a tray 110 and a pad 410. In FIG. 7, the reference numerals of the terminal storage parts 111, 112, ribs 113, 114, recesses 115, 116, pedestal 117, protrusions 118, 119, edge 120, and battery storage part rows 130, 140 of the tray 110 are omitted.

[0046] The battery packaging material 400 has a pad 410 instead of the buffer pads 150 of the battery packaging materials 100, 200. The pad 410 is installed on the pedestal 117 instead of the buffer pads 150.

[0047] The pad 410 is provided between the battery storage part rows 130, 140, similarly to the buffer pads 150. It can also be said that the pad 410 is provided between the battery pack groups 310, 320 in the tray 110.

[0048] FIG. 8 is a cross-sectional view of the battery packaging material of the comparative example. In FIG. 8, a front view of the YY' cross-section of the battery packaging material 400 in FIG. 7 is shown. The pad 410 is created by stacking a plurality of plate-shaped corrugated papers. In this example, it is assumed that the pad 410 is formed by stacking four corrugated papers 411, 412, 413, 414. The corrugated papers 411, 412, 413, 414 are stacked and placed on the upper surface 117a of the pedestal 117.

[0049] The pads 410 restrict the left - right movement of the battery packs 312, 322 housed in the battery storage parts 132, 142 toward the drawing. However, the corrugated cardboard 411, 412, 413, 414 forming the pads 410 is made by cutting the corrugated cardboard. In this case, the rough cut surface of the corrugated cardboard rubs against the battery packs 312, 322 due to shaking during transportation or the like, resulting in rubbing marks and scratches on the appearance of the battery packs 312, 322.

[0050] Also, the pads 410 are preferably made in a simple structure with a small number of materials used and processes required for production. For this reason, the pads 410 are simply stacked without adhering the corrugated cardboard 411, 412, 413, 414 with an adhesive or the like. In this case, due to shaking during transportation or the like, the positions of the corrugated cardboard 411, 412, 413, 414 may shift from their original positions, and the left - right movement of the battery packs 312, 322 may not be restricted. Then, the appearance including the label of the battery packs 312, 322 rubs against the walls of the depressions in the battery storage parts 132, 142, resulting in rubbing marks and scratches on the appearance of the battery packs 312, 322.

[0051] On the other hand, since the cushioning pads 150 used for the battery packaging materials 100, 200 can be made by bending the corrugated cardboard, the number of processes required for production is less than that of the pads 410, and they can be easily produced. Also, compared with the comparative examples in FIGS. 7 and 8, since the cut surface of the corrugated cardboard does not contact each battery pack, rubbing marks and scratches on the appearance of each battery pack due to the cut surface do not occur. Furthermore, the first member 152 and the second member 153 formed by bending the corrugated cardboard bias each battery pack in the direction toward the outside of the tray 110, thereby suppressing the left - right shaking of each battery pack. Thereby, the battery packaging materials 100, 200 can reduce rubbing marks and scratches on the appearance of each battery pack or the appearance of the batteries included in each battery pack.

Explanation of Reference Numerals

[0052] 100, 200, 400 Battery packaging materials 110 Tray 111, 112 Terminal storage part 113, 114 Rib 115, 116 Recess 117 Base 117a Upper surface 118, 119 Protrusion 120 Edge 121, 122 Battery storage part frame 125 Bottom 130, 140 Battery storage part row 131, 132, 141, 142 Battery storage part 150 Buffer pad 151 Bottom material 151a, 151b Position 152 First member 153 Second member 310, 320 Battery pack group 311, 312, 321, 322 Battery pack 321a, 322a Label 321b, 322b Lead wire 321c, 322c Terminal 410 Pad 411, 412, 413, 414 Corrugated board

Claims

1. a first storage section and a second storage section facing each other, each having a recess into which a battery can be inserted; a seat provided between the first storage section and the second storage section, the seat having a surface that is approximately perpendicular to a depth direction of the recess; A tray having A plate-shaped bottom member that is placed on the surface; a plate-like first member rising from a first end of the bottom member on the side of the first storage section, the first member biasing a first battery stored in the first storage section in a direction from the second storage section toward the first storage section; a plate-shaped second member rising from a second end of the bottom member on the second storage section side, the second member biasing a second battery stored in the second storage section in a direction from the first storage section toward the second storage section; A cushioning pad having A packaging material for a battery comprising:

2. The buffer pad is formed by folding both opposing end portions of a plate-shaped corrugated board at a position corresponding to the first end and a position corresponding to the second end.

2. The battery packaging material according to claim 1.

3. When the tray is placed on a horizontal surface, the height of the surface of the base from the horizontal surface is lower than the height of the edge surrounding the outer periphery of the tray from the horizontal surface.

2. The battery packaging material according to claim 1.

4. the base has a first protrusion that limits movement of the buffer pad in a direction from the second storage section to the first storage section, and a second protrusion that limits movement of the buffer pad in a direction from the first storage section to the second storage section.

2. The battery packaging material according to claim 1.

5. the first battery inserted into the first storage section; the second battery inserted into the second storage section; The battery packaging material according to claim 1, further comprising:

6. a tray having a first storage section and a second storage section facing each other, each having a recess into which a battery can be inserted, and a base provided between the first storage section and the second storage section, the base having a surface that is approximately perpendicular to a depth direction of the recess; and a plate-shaped bottom member that is placed on the surface of the tray. a plate-like first member rising from a first end of the bottom member on the side of the first storage section, the first member biasing a first battery stored in the first storage section in a direction from the second storage section toward the first storage section; a plate-shaped second member rising from a second end of the bottom member on the second storage section side, the second member biasing a second battery stored in the second storage section in a direction from the first storage section toward the second storage section; A cushioning pad comprising:

Images