A pouch battery material box

Abstract

The utility model relates to soft -walled battery production technical field discloses a kind of soft -walled battery material box, including box, the cavity is equipped in box interior, the top opening of cavity, the bottom of cavity is spaced along width direction and is uniformly distributed with several support bosses, clearance for the side edge insertion of soft -walled battery is equipped between adjacent support boss, the depth of clearance is greater than the width of the side edge of soft -walled battery.The utility model has the beneficial effect: the side edge damage when battery vertical placement can be avoided, improves baking efficiency, simplifies the structure of material box, reduces production cost, reduces the overall weight of material box, is conducive to transfer.

Description

Technical Field

[0001] This utility model relates to the field of soft-pack battery production technology, and in particular to a soft-pack battery material box. Background Technology

[0002] Currently, after packaging, pouch batteries need to undergo a baking process. When transferring pouch batteries to the baking stage, material boxes are used. Existing material boxes are generally boxes with dimensions similar to the batteries themselves. There are two transfer methods: one is to stack the batteries flat inside the box, with separators between adjacent batteries. This method makes the batteries prone to shaking during transfer, and the bottom batteries are easily damaged by pressure when stacked. It also makes them difficult to handle. The other method uses separators spaced along the width of the box, dividing the interior into multiple cavities, with one battery placed vertically in each cavity. This method causes the side seals of the batteries to deform under pressure, leading to damage during baking. Furthermore, the separators confine each battery to a small cavity, hindering heat transfer and affecting baking efficiency. Additionally, the larger separators require more raw materials for material box production, increasing costs, and the overall weight of the material box makes it inconvenient to transfer. Utility Model Content

[0003] The purpose of this invention is to provide a soft-pack battery material box that can prevent damage to the side seal when the battery is placed vertically, improve baking efficiency, simplify the structure of the material box, reduce production costs, reduce the overall weight of the material box, and facilitate transportation.

[0004] To achieve the above objectives, this utility model provides a soft-pack battery material box, including a box body, an interior cavity, an opening at the top of the cavity, and a plurality of support protrusions evenly distributed at intervals along the width direction at the bottom of the cavity. A gap is provided between adjacent support protrusions for inserting the side sealing edge of the soft-pack battery, and the depth of the gap is greater than the width of the side sealing edge of the soft-pack battery.

[0005] Furthermore, the length of the supporting boss is l, and the length of the soft-pack battery is L, satisfying l≥2 / 3L.

[0006] Furthermore, the depth of the gap ranges from 12mm to 14mm.

[0007] Furthermore, the width of the support boss is 9mm-10mm.

[0008] Furthermore, the width W of the gap is ≥ 2 mm.

[0009] Furthermore, the top two side walls of the supporting boss are chamfered.

[0010] Furthermore, the chamfer angle ranges from 45° to 60°.

[0011] Furthermore, the box body is made of heat-resistant material with a heat resistance temperature greater than 105°C.

[0012] Furthermore, the support boss is located in the middle of the box body, and the mid-plane of the support boss in the width direction coincides with the box body.

[0013] Furthermore, the wall thickness of the box body is greater than or equal to 7mm.

[0014] Compared with existing technologies, the present invention provides a pouch battery material box with the following advantages: Several supporting protrusions are evenly distributed along the width direction at the bottom of the box. A gap is provided between adjacent supporting protrusions for inserting the side seals of the pouch batteries, and the depth of the gap is greater than the width of the side seals. When placing the pouch batteries, they can be placed vertically, with the side seals inserted into the gaps. The supporting protrusions support the pouch batteries, suspending the side seals and preventing damage when the batteries are placed vertically. Furthermore, since only supporting protrusions are provided, adjacent pouch batteries are not separated and are located in the same cavity, improving heat transfer efficiency during baking and thus increasing baking efficiency. In addition, the simplified structure of the material box, reduced raw material consumption during production, and reduced overall weight facilitate transport. Attached Figure Description

[0015] Figure 1 This is an isometric view of the soft-pack battery material box according to an embodiment of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the soft-pack battery material box according to an embodiment of this utility model;

[0017] Figure 3 This is a side sectional view of the soft-pack battery material box according to an embodiment of this utility model;

[0018] Figure 4 This is a top view of the soft-pack battery material box according to an embodiment of this utility model;

[0019] Figure 5 This is a front sectional view of the soft-pack battery material box according to an embodiment of this utility model;

[0020] Figure 6 This is a schematic diagram of a pouch battery placed vertically.

[0021] In the diagram, 1 is the box body; 11 is the cavity; 2 is the supporting boss; 3 is the gap; a is the soft-pack battery; a1 is the side seal. Detailed Implementation

[0022] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0023] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "inner", "outer" and other terms used in this utility model to indicate the orientation or positional relationship are based on the positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device and element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0024] like Figures 1 to 6 As shown, a preferred embodiment of this utility model provides a soft-pack battery material box for vertically placing soft-pack batteries a and transferring them to the baking process, thereby improving baking efficiency and reducing the overall weight of the material box. Specifically, it includes a box body 1, see [reference needed]. Figure 1 , Figure 2 The box body 1 has an internal cavity 11 with an opening at the top. (See reference) Figure 6 To facilitate the vertical placement of the pouch battery a and prevent pressure on its side seal a1, several support protrusions 2 are evenly distributed along the width direction at the bottom of the cavity 11. Adjacent support protrusions 2 support the bottom of the pouch battery, and gaps 3 are provided between adjacent support protrusions 2 for inserting the side seal of the pouch battery. To avoid pressure on the side seal, the depth of the gaps 3 is greater than the width of the side seal of the pouch battery. Since only support protrusions 2 are provided inside the box body 1, there is no need for partitions, greatly reducing the amount of material used during the molding of the box body 1 and reducing the overall weight of the box body 1. Furthermore, since all pouch batteries are in the same cavity 11 during baking, without the obstruction of partitions, heat transfer efficiency is improved, thereby increasing baking efficiency.

[0025] Furthermore, to facilitate guidance when the side seal a1 is inserted into the gap 3, the top two side walls of the support boss 2 are chamfered to improve the placement efficiency of the soft-pack battery. Even further, to achieve a better guiding effect, the chamfer angle ranges from 45° to 60°. In this embodiment, refer to... Figure 3 The chamfer angle is 60°.

[0026] In some embodiments, to ensure sufficient support strength for the pouch battery and prevent it from wobbling in the width direction of the support boss 2 after placement, refer to... Figure 5 , Figure 6The length of the supporting boss 2 is l, and the length of the soft-pack battery is L, satisfying l≥2 / 3L. In this embodiment, the length of the supporting boss 2 is 150mm, and the length of the supporting boss 2 is set according to the actual length of the soft-pack battery. In this embodiment, in order to facilitate the setting of the shape of the supporting boss 2 and facilitate processing, the shape of the supporting boss 2 is a cuboid.

[0027] In this embodiment, the width of the support boss 2 is set to correspond to the thickness of the pouch battery. According to existing pouch battery models, the width of the support boss 2 is 9mm-10mm. At the same time, in order to facilitate alignment when the side seal is inserted into the gap 3, the size of the gap 3 should not be too small to avoid jamming when the side seal is inserted. Therefore, in this embodiment, the width W of the gap 3 is ≥2mm.

[0028] In some embodiments, the width of the side seal of the existing soft-pack battery is 10mm. Therefore, in order to avoid the side seal being pressed against the bottom surface of the gap 3 after being inserted into the gap 3, and at the same time to reduce the processing difficulty, the depth of the gap 3 is in the range of 12mm-14mm. In this embodiment, preferably, the depth of the gap 3 is 13mm.

[0029] Furthermore, since the soft-pack battery material box of this utility model can not only be used for the transfer of soft-pack batteries, but can also directly enter the baking process, in order to ensure that the box body 1 has good heat resistance, the box body 1 is made of heat-resistant material with a heat resistance temperature greater than 105℃. The box body 1 can generally be injection molded from materials such as PPS, LCP and high-temperature nylon.

[0030] Furthermore, to reduce the overall size of the box body 1, the supporting boss 2 is located in the middle of the box body 1, and the mid-plane of the supporting boss 2 in the width direction coincides with the box body 1, that is, the box body 1 is an axisymmetric figure, and the soft-pack battery is placed in the center. Further, to ensure that the box body 1 has a certain structural strength and to prevent deformation during baking, the wall thickness of the box body 1 is greater than or equal to 7mm, which can be adjusted according to actual usage requirements. In some other embodiments, if there are thin-walled areas of the box body 1 with a wall thickness of less than 7mm, reinforcing ribs can be added to the corresponding areas. Also, in some other embodiments, to facilitate the handling of the box body 1 as a whole, handles are provided on both outer walls along the length direction of the box body 1 for easy placement and removal.

[0031] In summary, this embodiment of the invention provides a soft-pack battery material box. A plurality of supporting protrusions 2 are evenly distributed along the width direction at the bottom of the box body 1. A gap 3 is provided between adjacent supporting protrusions 2 for inserting the side seals of the soft-pack batteries. The depth of the gap 3 is greater than the width of the side seals of the soft-pack batteries. When placing the soft-pack batteries, they can be placed vertically, with the side seals inserted into the gaps 3. The supporting protrusions 2 support the soft-pack batteries, suspending the side seals and preventing damage when the batteries are placed vertically. Furthermore, since only supporting protrusions 2 are provided, adjacent soft-pack batteries are not separated and are located within the same cavity 11, improving heat transfer efficiency during baking and thus increasing baking efficiency. In addition, the use of only supporting protrusions 2 simplifies the structure of the material box, reduces the amount of raw materials used in its production, reduces the overall weight of the material box, and facilitates transportation.

[0032] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A soft-pack battery material box, characterized in that: The device includes a housing with an internal cavity. The top of the cavity is open, and the bottom of the cavity has a plurality of support protrusions evenly distributed along the width direction. A gap is provided between adjacent support protrusions for inserting the side sealing edge of the soft-pack battery. The depth of the gap is greater than the width of the side sealing edge of the soft-pack battery.

2. The soft-pack battery material box as described in claim 1, characterized in that: The length of the supporting boss is l, and the length of the soft-pack battery is L, satisfying l≥2 / 3L.

3. The soft-pack battery material box as described in claim 1, characterized in that: The depth of the gap is in the range of 12mm-14mm.

4. The soft-pack battery material box as described in claim 1, characterized in that: The width of the support boss is 9mm-10mm.

5. The soft-pack battery material box as described in claim 1, characterized in that: The width W of the gap is ≥ 2 mm.

6. The soft-pack battery material box as described in claim 1, characterized in that: The top two side walls of the support boss are chamfered.

7. The soft-pack battery material box as described in claim 6, characterized in that: The chamfer angle ranges from 45° to 60°.

8. The soft-pack battery material box as described in claim 1, characterized in that: The box body is made of heat-resistant material with a heat resistance temperature greater than 105°C.

9. The soft-pack battery material box as described in claim 1, characterized in that: The support boss is located in the middle of the box body, and the mid-plane of the support boss in the width direction coincides with the box body.

10. The soft-pack battery material box as described in claim 1, characterized in that: The wall thickness of the box is greater than or equal to 7mm.

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