JP2025077308A - Battery packaging and cushioning pads - Google Patents

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

The present invention relates to packaging materials for batteries and cushioning pads.

When transporting batteries, packaging materials that house a plurality of batteries are used.
For example, there has been a proposal for a battery packaging box that has two hexahedral trays, each capable of accommodating a number of batteries side-by-side, connected together with the top surface of each tray open. In this battery packaging box, the open surface of one tray can overlap the open surface of the other tray.

There has also been a proposal for a packaging container that includes an interior member that houses multiple flat rectangular batteries arranged front to back in a vertical position with the front and rear flat surfaces facing each other, and a storage box that houses the interior member inside. The interior member of this packaging container is formed integrally with a bottom wall on which the flat rectangular batteries are placed and a pair of cushioning materials that are placed at the front and rear of the interior member. In this packaging container, the flat rectangular batteries are placed between the two cushioning materials.

Japanese Utility Model Application Publication No. 5-34188 JP 2010-9825 A

When a battery housed in a packaging material is transported, the exterior of the label attached to the battery may be scratched due to vibrations and shocks during transport.
In one aspect, the present invention aims to reduce scratches on the exterior of a battery.

In one aspect, a battery packaging material is provided that includes a tray and a buffer pad. The tray includes a first storage section and a second storage section that face each other and each have a recess into which a battery can be inserted, and a base that is provided between the first storage section and the second storage section and has a surface that is approximately perpendicular to the depth direction of the recess. The buffer pad includes a plate-shaped bottom member that is installed on the surface, a plate-shaped first member that rises from a first end of the bottom member on the side of the first storage section and biases a first battery stored in the first storage section in a direction from the second storage section to the first storage section, and a plate-shaped second member that rises from a second end of the bottom member on the side of the second storage section and biases a second battery stored in the second storage section in a direction from the first storage section to the second storage section.

In one embodiment, a buffer pad is provided. The buffer pad has 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 placed on a surface of 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 pedestal provided between the first storage section and the second storage section, the pedestal having a surface substantially perpendicular to the depth direction of the recess. The first member rises from a first end of the bottom member on the side of the first storage section, and urges the first battery stored in the first storage section in a direction from the second storage section to the first storage section. The second member rises from a second end of the bottom member on the side of the second storage section, and urges the second battery stored in the second storage section in a direction from the first storage section to the second storage section.

In one aspect, scratches on the exterior of the battery can be reduced.

FIG. 2 is a perspective view of a battery packaging material. FIG. FIG. FIG. 2 is a perspective view of a battery packaging material containing a battery. FIG. 2 is a perspective cross-sectional view of a battery packaging material. FIG. 2 is a cross-sectional view of a battery packaging material. 1 is a comparative example of a battery packaging material. FIG. 2 is a cross-sectional view of a battery packaging material of a comparative example.

The present embodiment will be described below with reference to the drawings.
FIG. 1 is a perspective view of a battery packaging material.
The battery packaging material 100 is used to store and transport batteries. A plurality of battery packs are stored in the battery packaging material 100. The battery pack is a package of one or a plurality of batteries. The battery pack may be called a battery pack or a battery package. For example, the battery pack may 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 a recess for storing batteries and terminals is provided on the upper surface side. The material of the tray 110 is, for example, resin. The tray 110 has terminal storage sections 111, 112, ribs 113, 114, recesses 115, 116, and battery storage section rows 130, 140.

The terminal storage sections 111 and 112 are grooves for storing terminals attached to lead wires extending from the battery pack. The terminal storage sections 111 and 112 are provided along the battery storage section rows 130 and 140, but on the outside of the battery storage section rows 130 and 140.

Ribs 113 and 114 are provided on the outer peripheral wall surfaces of tray 110 on the left and right sides as viewed in the drawing, and when trays 110 are stacked in multiple tiers, they fit with the ribs on the outer peripheral surface of the upper tray and the ribs on the outer peripheral surface of the lower tray. When trays 110 are stacked in multiple tiers, recesses 115 and 116 fit with convex portions on the back side of the corresponding recesses on the upper tray. Also, convex portions are formed on the back sides of recesses 115 and 116, and these convex portions fit with the corresponding recesses on the lower tray. Note that recesses 115 and 116 are provided not only on the front surface of tray 110, but also on the rear surface of tray 110.

Each of the battery storage section rows 130, 140 has multiple battery storage sections lined up in a row along the long axis of the tray 110 when the tray 110 is viewed from above, that is, in the direction from the front to the rear of the drawing. For example, the battery storage section row 130 includes a battery storage section 131. Of the multiple battery storage sections in the battery storage section row 130, the battery storage section 131 is located at the front as viewed in the drawing. Furthermore, the battery storage section row 140 includes a battery storage section 141. Of the multiple battery storage sections in the battery storage section row 140, the battery storage section 141 is located at the front as viewed in the drawing.

Here, as an example, the battery storage section stores a battery pack of cylindrical batteries. The battery pack may be, for example, a plurality of batteries arranged in a row so that the sides of adjacent batteries (i.e., the sides other than the two opposing circular sides) are in contact with each other, and then packaged in a shrink pack, paper, or the like. The size of the batteries may be, for example, D, C, AA, AAA, or AAA. The shape of the batteries may be a rectangular parallelepiped. Furthermore, the type of battery may be a primary battery such as a manganese dry cell or an alkaline manganese battery, or a secondary battery such as a nickel-metal hydride battery or a lithium-ion battery. As described above, a battery pack is a package of one or more batteries. For this reason, the battery storage section can also be said to store batteries.

The battery storage section has a recess for storing a battery pack so that the direction of the short axis of the tray 110 when viewed from above is the direction in which the batteries of the battery pack are lined up. A battery storage section row 130 is formed by arranging multiple battery storage sections in a direction perpendicular to the direction in which the batteries of the battery pack are lined up. Similar to the battery storage section row 130, the battery storage section row 140 is also formed by arranging multiple battery storage sections in a row.

The number of battery storage sections included in each of the battery storage section rows 130 and 140 is the same. One battery storage section in the battery storage section row 130 is provided in a position facing a corresponding battery storage section in the battery storage section row 140 across the buffer pad 150. For example, the battery storage sections 131 and 141 are two battery storage sections facing each other.

The battery storage section is a name used to distinguish it from the terminal storage section. The battery packaging material 100 does not need to have a terminal storage section. For example, the battery packaging material 100 may store a battery pack that does not have terminals or lead wires. When it is not necessary to distinguish the name from the terminal storage section, the battery storage section may simply be referred to as a "storage section" for storing batteries.

The buffer pad 150 suppresses the shaking of the battery packs stored in the battery storage section rows 130, 140 in the left-right direction when viewed from the top of the drawing. The buffer pad 150 is provided between the battery storage section rows 130, 140 along the direction of the long axis of the tray 110 when viewed from above. The cross section of the buffer pad 150 is U-shaped.

As described below, each of the buffer pads 150 has a plate-shaped bottom member, a plate-shaped first member rising from the end of the bottom member facing the battery storage section 131, and a plate-shaped second member rising from the end of the bottom member facing the battery storage section 141.

FIG. 2 is a perspective view of the tray.
The tray 110 further has a base 117, protrusions 118 and 119, and a rim 120. In Fig. 2, the reference numerals for the terminal accommodating portions 111 and 112, the ribs 113 and 114, and the recesses 115 and 116 are omitted.

The base 117 is provided between the battery storage section rows 130 and 140 along the long axis of the tray 110 when the tray 110 is viewed from above. The base 117 is used to install the buffer pad 150. The upper surface of the base 117, i.e., the top surface, is approximately perpendicular to the depth direction of the recess of each battery storage section. The buffer pad 150 is installed on the tray 110 by placing its bottom member on the upper surface of the base 117. The protrusion 118 is provided on the end of the base 117 on the battery storage section 131 side. The protrusion 119 is provided on the end of the base 117 on the battery storage section 141 side. Although the reference numerals are omitted, the base 117 has multiple protrusions including the protrusion 118 on the battery storage section row 130 side. The base 117 also has multiple protrusions including the protrusion 119 on the battery storage section row 140 side. These protrusions, including protrusions 118 and 119, are provided to sandwich the buffer pad 150 from both the left and right sides, and limit the left-right movement of the buffer pad 150 placed on the base 117. This allows the buffer pad 150 to be placed on the tray 110 and transported even if a battery pack is not stored in the tray 110. In addition, the buffer pad 150 can be appropriately positioned so that it is located between two opposing battery storage sections, or between two opposing battery packs stored in the two battery storage sections. For example, the protrusion on the battery storage section row 130 side may be called a first protrusion. The protrusion on the battery storage section row 140 side may be called a second protrusion.

Here, the recess of each battery storage section including the battery storage sections 131 and 141 can insert a battery pack having a first number of batteries (for example, four batteries) into one set, and stores the inserted battery pack. When a battery pack having a second number of batteries (for example, three batteries) is stored in each battery storage section, a space for the difference between the first number and the second number (for example, one battery) is generated in each battery storage section. In this case, by installing the buffer pad 150, the space can be filled with the buffer pad 150, and the battery pack having the second number of batteries can be transported without being scratched on the exterior. In addition, the tray 110 can be used to store a battery pack having a first number of batteries (for example, four batteries) and a battery pack having a second number of batteries (for example, three batteries). In the following description, "battery pack" corresponds to "battery pack having a second number of batteries". In addition, the above "first number" can be a number equal to or greater than two. The "second number" is a number smaller than the first number and can be a number equal to or greater than 1.

FIG. 3 is a perspective view of the cushioning 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 plate-shaped piece of cardboard at predetermined positions 151a and 151b at approximately 90 degrees. Here, the position 151a corresponds to the end (first end) of the bottom member 151 on the side of the battery housing section 131. The position 151b corresponds to the end (second end) of the bottom member 151 on the side of the battery housing section 141. For this reason, the position 151a can also be said to be the first end of the bottom member 151 on the side of the battery housing section 131 (the battery housing section row 130). The position 151b can also be said to be the second end of the bottom member 151 on the side of the battery housing section 141 (battery housing section row 140).

The part that stands up when the cardboard is folded at position 151a corresponds to the first member 152. The part that stands up when the cardboard is folded at position 151b corresponds to the second member 153. For example, each of the first member 152 and the second member 153 is created so that its upper end is lower than the top of the battery pack inserted in each storage section. This makes it possible to stack multiple battery packs stored in the battery packaging material 100.

As described above, by bending the cardboard to form the first member 152, the first member 152 is provided with an elastic force that moves to the left in the drawing, with position 151a as the fulcrum. Similarly, by bending the cardboard to form the second member 153, the second member 153 is provided with an elastic force that moves to the right in the drawing, with position 151b as the fulcrum.

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 a 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 a 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.

The cardboard used to create the buffer pad 150 may be made of paper or plastic.
FIG. 4 is a perspective view of a battery packaging material containing a battery.

The battery packaging material 200 illustrates an example in which battery pack groups 310, 320 are stored in the battery packaging material 100 without the battery packs stored therein. In FIG. 4, the reference numerals for the ribs 113, 114, recesses 115, 116, base 117, protrusions 118, 119, edge 120, and battery storage section rows 130, 140 of the tray 110 of the battery packaging material 200 are omitted.

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.

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.

The battery pack 321 has a label 321a, a lead wire 321b, and a terminal 321c.
Label 321a is a product label attached to the outside of battery pack 321 and has product information such as the product name printed thereon.

The lead wire 321b is attached to the battery pack 321 and is a component for extracting electric power from the battery in the battery pack 321. The lead wire 321b is insulated and coated with a resin material.
The terminal 321c is a component that is connected to the end of the lead wire 321b opposite to the battery pack 321. The terminal 321c is used for connection to a predetermined device.

Like battery pack 321, other battery packs including battery pack 311 also have labels, lead wires, and terminals. The terminals of each battery pack are stored in the terminal storage section (terminal storage section 111 or terminal storage section 112) corresponding to that battery pack. For example, terminal 321c is stored in terminal storage section 112.

In this way, 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.

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

The battery storage section 132 is a battery storage section included in the battery storage section row 130 and corresponds to the XX' cross section. The battery storage section 132 stores the battery pack 312 of the battery pack group 310. The battery storage section 142 is a battery storage section included in the battery storage section row 140 and corresponds to the XX' cross section. The battery storage section 142 stores the battery pack 322 of the battery pack group 320.

Battery storage section frame 121 is the frame of battery storage section 132. Battery storage section frame 122 is the frame of battery storage section 142. Battery storage section frames 121, 122 form recesses that surround the sides of battery packs 312, 322. The other battery storage sections are also formed by battery storage section frames similar to battery storage sections 132, 142.

The central portion of the battery housing frames 121, 122 on the tray 110 forms the base 117. The battery housing frames 121, 122 are connected via the upper surface of the base 117. The other opposing pairs of battery housing frames also form bases 117 in the same way and are connected via the upper surfaces of the bases 117.

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

The bottom member 151 of the buffer pad 150 is placed on the upper surface 117a of the base 117. The height of the upper surface 117a 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. In other words, when the tray 110 is placed on a horizontal surface, the height of the upper surface 117a of the base 117 from the horizontal surface is lower than the height of the edge 120 surrounding the outer periphery of the tray 110 from the horizontal surface. As a result, when the buffer pad 150 is placed on the upper surface 117a of the base 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.

The first member 152 of the buffer pad 150 biases the battery pack 312 or the battery contained in the battery pack 312 in the direction from the battery storage section 142 to the battery storage section 132 (the direction of the left-pointing arrow in FIG. 6). The first member 152 similarly biases the other battery packs in the battery pack group 310 or the batteries contained in the battery pack in the direction from the battery storage section 142 to the battery storage section 132.

The second member 153 of the buffer pad 150 biases the battery pack 322 or the battery contained in the battery pack 322 in the direction from the battery storage section 132 to the battery storage section 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 contained in the battery pack in the same direction from the battery storage section 132 to the battery storage section 142.

As a result, when each battery pack stored in the battery packaging material 200 is transported, the shaking of each battery pack in the left-right direction as viewed in FIG. 6 is reduced by the buffer pad 150. This reduces scratches on the exterior of each battery pack, including the label. For example, the left-right shaking of battery packs 312, 322 is reduced by the buffer pad 150, thereby reducing scratches on the exterior of battery pack 322, including label 322a, and the exterior of battery pack 312, including the label.

The battery storage section 132 may be referred to as the "first storage section." The battery storage section 142 may be referred to as the "second storage section." The battery contained in the battery pack 312 may be referred to as the "first battery." The battery contained in the battery pack 322 may be referred to as the "second battery."

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 for the terminal housing sections 111, 112, ribs 113, 114, recesses 115, 116, base 117, protrusions 118, 119, edge 120, and battery housing section rows 130, 140 of the tray 110 are omitted.

The battery packaging material 400 has a pad 410 instead of the buffer pad 150 of the battery packaging materials 100 and 200. The pad 410 is installed on the base 117 instead of the buffer pad 150.

The pad 410, like the buffer pad 150, is provided between the battery storage rows 130, 140. It can also be said that the pad 410 is provided between the battery pack groups 310, 320 in the tray 110.

FIG. 8 is a cross-sectional view of a battery packaging material of a comparative example.
FIG. 8 shows a front view of the YY′ cross section of the battery packaging material 400 in FIG.
The pad 410 is made by stacking a plurality of plate-shaped cardboard sheets. In this example, the pad 410 is made by stacking four cardboard sheets 411, 412, 413, and 414. The cardboard sheets 411, 412, 413, and 414 are placed on the upper surface 117a of the base 117 in a stacked manner.

The pad 410 restricts the movement of the battery packs 312, 322 stored in the battery storage sections 132, 142 in the left-right direction when viewed in the drawing. However, the cardboard 411, 412, 413, 414 that form the pad 410 are made by cutting cardboard. In this case, the rough cut surfaces of the cardboard rub against the battery packs 312, 322 due to shaking during transportation, etc., resulting in scratches on the exterior of the battery packs 312, 322.

It is also preferable that the pad 410 is made simply by using a small number of materials and steps required for its creation. For this reason, the pad 410 is made by simply stacking the cardboard boxes 411, 412, 413, and 414 without bonding them with adhesive or the like. In this case, the cardboard boxes 411, 412, 413, and 414 may shift from their original positions due to shaking during transportation, making it impossible to restrict the left-right movement of the battery packs 312 and 322. If this happens, the exterior of the battery packs 312 and 322, including the labels, may rub against the walls of the recesses in the battery storage sections 132 and 142, causing scratches on the exterior of the battery packs 312 and 322.

On the other hand, the buffer pad 150 used in the battery packaging materials 100 and 200 can be made by folding cardboard, so it requires fewer steps to make than the pad 410 and can be made more easily. In addition, compared to the comparative examples in Figures 7 and 8, the cut surfaces of the buffer pad 150 do not come into contact with the battery packs, so the cut surfaces do not cause scratches on the exterior of the battery packs. Furthermore, the first member 152 and the second member 153 formed by folding the cardboard urge the battery packs in a direction toward the outside of the tray 110, thereby suppressing the left-right shaking of the battery packs. As a result, the battery packaging materials 100 and 200 can reduce scratches on the exterior of the battery packs or the exterior of the batteries contained in each battery pack.

REFERENCE SIGNS LIST 100, 200, 400 Battery packaging material 110 Tray 111, 112 Terminal storage section 113, 114 Rib 115, 116 Recess 117 Base 117a Top surface 118, 119 Protrusion 120 Edge 121, 122 Battery storage section frame 125 Bottom 130, 140 Battery storage section row 131, 132, 141, 142 Battery storage section 150 Cushioning pad 151 Bottom member 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 Cardboard

Claims (6)

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: 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. 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. 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. 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: 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:

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