KR20190050056A - Tray for packing secondary battery - Google Patents

Abstract

The present invention relates to a tray formed by a molding material on a thin plate, housing a secondary battery, and used since a plurality of trays are stacked. The tray may comprise: a battery housing unit formed in a concave shape to house a secondary battery; service space extending in a lateral direction from the battery housing unit and formed in a concave shape to; a weight dispersing undercut formed in a concave shape to at the part of a side wall of the battery housing unit, wherein the battery housing unit is formed to be sloped so that the battery housing unit has the narrow top and wide bottom; and a laminated undercut formed in a concave shape to at the part of a side wall of the service space, wherein the service space is formed to be sloped so that the service space has the narrow top and wide bottom.

Description

{TRAY FOR PACKING SECONDARY BATTERY}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a secondary battery packing tray, and more particularly, to a tray capable of accommodating and stacking a secondary battery.

A secondary battery is a battery that can be charged and discharged unlike a primary battery that can not be charged. In the case of a low-capacity battery in which one battery cell is packed in a pack form, the secondary battery can be used as a smart phone, a digital camera, a notebook, And it is widely used as a motor drive power source for an electric scooter, a hybrid car, and an electric car in the case of a large-capacity battery in which dozens of battery cells are connected.

The secondary battery is manufactured in various shapes. For example, in case of a square type or a pouch type, a tray member is often used as a packaging member for carrying and storing. The tray is usually used in such a manner that a thin plate of a synthetic resin is molded to form one or more grooves for accommodating the secondary batteries, the secondary batteries are housed in one groove or groove, and the trays are stacked thereon. The stacked trays are housed in separate boxes or boxes.

Since the stacked and used trays serve to protect the secondary battery, if there is a problem in the laminated structure, the secondary battery may be damaged. For example, if the tray can not withstand the self-weight of the secondary battery or an external impact, the secondary batteries may collide with each other or may be electrically short-circuited to cause a serious problem. If the total height of stacked trays is reduced such that stacked trays are collapsed in the box even though they are less than that, the trays are separated from each other and flow into the box, so that the possibility of damage to the secondary cells due to mutual collision is higher.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a secondary battery packaging tray which can have a sufficient structural strength in a stacked state.

Another object of the present invention is to provide a tray for packing a rechargeable secondary battery capable of minimizing the separation of stacked trays by external force so that the trays separate and flow in a box or box.

Other objects, specific advantages and novel features of the present invention will become more apparent from the following detailed description and preferred embodiments with reference to the accompanying drawings.

A secondary battery packing tray according to the present invention is a tray formed by molding a thin plate-like material and used for stacking a plurality of secondary batteries, comprising: a battery accommodating portion recessed to receive a secondary battery; A load distribution undercut formed on at least a part of a side wall of the battery accommodating portion and formed so as to be inclined so that the main body accommodating portion is a convergent lower light; And a stacked undercut formed so as to be sloped so that the service space is a sharply dimming light.

Here, the load distribution undercut may have a substantially horizontal bottom surface, and the top surface of another battery packing tray disposed adjacent to the bottom of the bottom surface may be in contact with the bottom surface.

In the rechargeable battery packing tray according to the present invention, the outer surface of the laminated undercut may be in contact with the inner surface of the laminated undercut of another battery packing tray disposed adjacent to the lower side. A plurality of the laminated undercuts may be formed in the vertical direction, and a step may be formed between the pair of laminated undercuts adjacent to each other in the vertical direction. At this time, the plurality of stacked undercuts may have the same height. On the other hand, on the lower surface of the step between the laminated undercuts, the upper surface of another battery packing tray arranged next to the lower side or the step between the laminated undercuts may be abutted and supported. In addition, the upper end of the laminated undercut may be formed with a round shape in the vertical direction.

According to the present invention, the secondary battery packaging tray can secure sufficient structural strength between the trays stacked in the vertical direction by the load dispersion undercut. Also, the laminated undercuts are disposed so that the so-called reverse slopes are opposed to each other, so that the laminated trays are imparted resistance in the direction in which they are separated from each other, thereby preventing the trays from being separated and colliding with each other.

Furthermore, when a plurality of stacked undercuts are provided, the step between the stacked undercuts assists in the role of the load dispersion undercut, so that the structural strength against the vertical load can be further reinforced.

1 is a perspective view of an embodiment of a rechargeable battery packing tray according to the present invention.
Fig. 2 is an enlarged view of a portion indicated by a dotted circle A in Fig.
3 is a partial sectional view taken along the line BB in Fig.
4 is a partial cross-sectional view taken along line CC of Fig.
5 is a partial cross-sectional view corresponding to FIG. 3 of another embodiment of a rechargeable battery packing tray according to the present invention.
FIG. 6 is a partial cross-sectional view corresponding to FIG. 3 of still another embodiment of a rechargeable battery packing tray according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The embodiments of the present invention are described in order to more fully explain the present invention to those skilled in the art, and the following embodiments may be modified into various other forms, It is not limited to the embodiment. Rather, these embodiments are provided so that this disclosure will be more faithful and complete, and will fully convey the scope of the invention to those skilled in the art.

In the following drawings, thickness and size of each layer are exaggerated for convenience and clarity of description, and the same reference numerals denote the same elements in the drawings. As used herein, the term " and / or " includes any and all combinations of one or more of the listed items.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the singular forms "a," "an," and "the" include singular forms unless the context clearly dictates otherwise. Also, " comprise " and / or " comprising " when used herein should be interpreted as specifying the presence of stated shapes, numbers, steps, operations, elements, elements, and / And does not preclude the presence or addition of one or more other features, integers, operations, elements, elements, and / or groups.

Although the terms first, second, etc. are used herein to describe various elements, components, regions, layers and / or portions, these members, components, regions, layers and / It is obvious that no. These terms are only used to distinguish one member, component, region, layer or section from another region, layer or section. Thus, a first member, component, region, layer or section described below may refer to a second member, component, region, layer or section without departing from the teachings of the present invention.

1 is a perspective view of an embodiment of a rechargeable battery packing tray according to the present invention.

The secondary battery packing trays 100 and 100 'according to the present invention are made of, for example, plastic as a thin plate material, and a battery receiving portion 110 for accommodating the secondary battery 50 is recessed. In FIG. 1, ten secondary battery receiving trays 110 are formed in an exemplary manner. The size and specific shape of the secondary battery receiving unit 110 may vary according to the shape of the secondary battery 50 to be packaged. 1, the shape of the battery accommodating portion 110 is formed especially for the prismatic or pouch-shaped secondary battery 50. In this case, The number of the battery receiving portions 110 can also be adjusted as needed. 1, one secondary battery 50 is stored in the battery accommodating portion 110 while the other secondary battery 50 is accommodated in the battery accommodating portion 110, And the remaining battery receiving portion 110 is shown as being empty. However, since this is for convenience of explanation, it is possible to accommodate 10 secondary batteries 50 in the 10 battery receiving portions 110 to be.

In this way, another tray 100 'may be stacked under one tray 100 accommodating, for example, 10 secondary cells 50. [ Of course, other trays can be stacked on the upper surface of the illustrated secondary battery packing tray 100 as well. Although FIG. 1 exemplarily shows that two secondary battery packing trays 100 and 100 'are stacked, it is possible to increase or decrease the number of stacked secondary battery packing trays 100 and 100' It is obvious.

The secondary battery packing tray 100 may be provided with a service space 120 in addition to the battery housing unit 110. The service space 120 extends laterally from the battery receiving portion 110 and is also concaved to accommodate or separate the secondary battery 50 into or from the battery receiving portion 110. Alternatively, Or removed from the system. In FIG. 1, the service space 120 is denoted by reference numeral 120 only at four places on the edge side, but the number and position of the service space 120 can be changed as needed. In addition, a concave space 120 'connecting adjacent battery receiving portions 110 is also shown between the battery receiving portions 110, and these spaces 120' can also be seen as a service space.

Fig. 2 is a partial enlarged view of a circled circle A in Fig. 1, in which one battery receiving portion 110 and a service space 120 are shown together. A load distribution undercut 140 is recessed in the side wall 111 of the battery receiving part 110 and a laminated undercut 130 is recessed in the side wall 121 of the service space 120. The laminated undercut 130 is exemplified by the upper laminated undercut 131 and the lower laminated undercut 132 arranged in the vertical direction.

The upper stacking undercut 131 and the lower stacking undercut 132 are formed to be inclined with respect to the side wall 121 of the service space 120 so that the service space 120 is partially partially And a stepped portion 133 is formed between the two laminated undercuts 131 and 132. As shown in FIG. In this state, when the other trays 100 'having the same structure are stacked from below, the inner side surface 131a of the upper stacking undercut 131 of the lower tray 100' (that is, the surface facing the inside of the service space) The outer side of the lower stacking undercut 132 of the upper tray 100 and the outer side of the lower stacking undercut 132 of the upper tray 100 are in contact with the outer side 132b of the lower stacking undercut 132 Since the inner side surfaces of the upper stacked undercuts of the lower tray 100 'are inclined in a downwardly downward light shape, resistance is generated when the two trays 100 and 100' are separated in the vertical direction. If the upper surface 101 of the lower tray 100 'is in contact with the lower surface of the step 133 between the laminated undercuts 131 and 132 of the upper tray 100 6, the load distribution undercut 140 can support the load in the vertical direction as in the case of the bottom surface 141 of the load distribution undercut 140 to be described below. Therefore, Can be reinforced. To this end, the upper stacking undercut 131 and the lower stacking undercut 132 may be formed to have substantially the same height.

When the two trays 100 and 100 'are laminated to each other, the upper surface 101 of the lower tray 100' can be easily passed to the outer side surface of the lower stacking undercut 132 of the upper tray 100 It is preferable that the upper end of the upper stacking undercut 131 of the lower tray 100 'is processed to be rounded so as to appear round on the sectional view.

The load dispersion undercut 140 may be formed in the side wall 111 of the battery receiving portion 110. The load-dissipating undercut 140 for two trays 100, 100 'stacked together in the cross-sectional view of FIG. 4 is illustrated. The load dispersion undercut 140 is also formed to be inclined with respect to the side wall 111 of the battery receiving portion 110 so as to form at least partly an overlapping light shape of the battery receiving portion 110 similar to the stacking undercut 130. [ The load distribution undercut 140 includes a substantially horizontal bottom surface 141 on which the upper surface 101 of the lower tray 100 'is brought into contact with the bottom surface of the bottom surface 141, Thereby supporting the load.

5 is a cross-sectional view of another embodiment of a rechargeable battery packing tray according to the present invention, which illustrates a cross section at the same time as in the example of Fig. In this example, there is a difference from the previous embodiment in that only one laminated undercut 130 is formed. Therefore, the same structure as the step 133 of the previous embodiment is omitted, and the role of supporting the load in the vertical direction can be omitted have. Nevertheless, since the inclined inner side surfaces of the laminated undercuts of the lower tray 100 'are in contact with the inclined outer side surfaces of the laminated undercuts 130 of the upper tray 100, Thereafter, it is possible to generate a resistance against separation of the two trays 100 and 100 'in the vertical direction. The upper end of the laminated undercut 130 is round-processed similarly to the previous embodiment.

6 is a cross-sectional view of another embodiment of a rechargeable battery packing tray according to the present invention, which also illustrates a section at the same time as in the example of Fig. This embodiment differs from the preceding embodiments in that three stacked undercuts 130 are formed. Since the laminated undercuts 130 are formed in three rows in the vertical direction, the step 133 is also formed in two places. If the stacked other trays 100 'have the same structure, the uppermost stacked undercut of the lower tray 100' comes into contact with the interrupted stacked undercut of the upper tray 100 at the time when stacking is completed, 100 'may be in contact with the lowermost laminated undercut of the upper tray 100. [ Alternatively, the uppermost layer undercut of the lower tray 100 'may be disposed in contact with the lowermost layered undercut of the upper tray 100, though not shown. The upper surface of the lower tray 100 'and the upper step of the two steps 133 may be respectively in contact with the lower surface of the two steps of the upper tray 100, as described in the previous embodiment, It can help to support the vertical load.

The number of stacked undercuts 130 is only one and the height of the sidewalls of the service space 120 in the same manner as the load distribution undercuts 140 The number, shape, position, and the like may be appropriately modified. In any case, the wall surface of the laminated undercut 130 is formed of a sloped surface that partially makes the service space 120 into a staggered light, so that when the plurality of trays are stacked in the vertical direction, Should be able to do.

The present invention is not limited to the above-described embodiments, but may be embodied in various forms without departing from the spirit and scope of the invention as defined in the appended claims. It will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.

50: secondary battery 100, 100 ': tray
110: battery housing part 111: side wall
120, 120 ': Service space 121: Side wall
130, 131, 132 laminated undercut 133:
140: load dispersion undercut 141: bottom surface

Claims (7)

1. A tray formed by molding a sheet-like material and used by stacking a plurality of secondary batteries,
A battery accommodating portion recessed to receive the secondary battery;
A service space formed in a concave shape extending laterally from the battery accommodating portion,
A load-dissipating undercut formed on at least a part of a side wall of the battery accommodating portion so as to be inclined so that the main body accommodating portion is a convergent lower light;
And a stacked undercut formed concavely in at least a part of the sidewalls of the service space, the stacked undercut being formed so as to be inclined so that the service space is a sharply dimming light.
The method according to claim 1,
Said load distribution undercut having a substantially horizontal bottom surface,
And the upper surface of another battery packing tray disposed adjacent to the lower side is in contact with the bottom surface of the bottom surface to support the secondary battery packing tray.
The method according to claim 1,
Wherein the outer surface of the laminated undercut is in contact with an inner surface of a laminated undercut of another battery packing tray disposed adjacent to the lower side.
The method of claim 3,
Wherein a plurality of the stacked undercuts are formed in the vertical direction and a step is formed between the pair of stacked undercuts adjacent to each other in the vertical direction.
5. The method of claim 4,
Wherein the plurality of stacked undercuts have the same height as each other.
5. The method of claim 4,
And the lower surface of the step between the stacked undercuts is configured to support the upper surface of another battery packing tray disposed adjacent to the lower side or a step between the stacked undercuts.
The rechargeable battery packing tray according to claim 1, wherein the upper end of the laminated undercut is formed with a vertical round section.

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