A soft pack battery packaging box with wedge-shaped undercut and fireproof sheet

Abstract

The present application discloses a soft pack battery packaging box with a wedge-shaped inverted buckle and a fireproof sheet, comprising a box body (1), wherein a soft pack battery slot (2) is provided in the box body (1), and wedge-shaped inverted buckles (3) are arranged around the box body, wherein the wedge-shaped inverted buckles are provided inwardly from the uppermost surface of the side surface of the box body to the inner side of the box body, and a wedge-shaped groove is formed on the outer side surface of the box body, and the wedge-shaped bottom surface of the wedge-shaped inverted buckle is at a certain distance L from the lower surface of the outermost edge of the box body; the box body can be used for stacking up and down during operation, and when stacked, the wedge-shaped bottom surface of the wedge-shaped inverted buckle (3) in the upper box body just matches the top surface of the corresponding wedge-shaped inverted buckle of the lower box body. The wedge-shaped inverted buckle of the present application can limit the position of the upper and lower box bodies to be stacked and fixed, and at the same time provide load-bearing support for the entire box body, thereby preventing the appearance of the soft pack battery from being damaged and squeezed during the box body trial production process and the packaging and transportation process, and at the same time, the fire extinguishing sheet of the present application can timely extinguish the fire when a short circuit occurs during the operation of the soft pack battery.

Description

Technical Field

[0001] The utility model relates to the field of soft-pack battery packaging, in particular to a soft-pack battery packaging box with a wedge-shaped undercut and a fireproof sheet. Background Art

[0002] Soft-pack batteries are batteries that use soft packaging materials (such as aluminum-plastic film) as the outer shell and liquid electrolyte as the internal isolation layer. According to the application field, soft-pack batteries are mainly divided into consumer electronics, electric vehicles and energy storage fields. With the rapid development of electric vehicles, consumer electronics and other fields, the demand for soft-pack batteries is also increasing. According to market research data, the global soft-pack battery market size has reached tens of billions, and China's soft-pack battery market size has exceeded tens of billions of yuan, and continues to maintain a rapid growth trend.

[0003] The outer packaging material of soft-pack batteries is aluminum-plastic film, and the thickness of the aluminum-plastic film is generally between 100μm-200μm, which is very thin and light. During the production trial process and the packaging and transportation process, the aluminum-plastic film is very easy to be scratched, damaging the appearance of the soft-pack batteries; and during transportation, the soft-pack batteries need to be stacked, which is more prone to extrusion, causing damage to the soft-pack battery cells. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a soft-pack battery packaging box with a wedge-shaped buckle and a fireproof sheet.

[0005] The technical solution adopted by the utility model is as follows: a soft-pack battery packaging box with a wedge-shaped inverted buckle and a fireproof sheet is provided, including a box body, a soft-pack battery slot is provided in the box body, wedge-shaped inverted buckles are arranged around the box body, the wedge-shaped inverted buckles are provided inwardly from the uppermost surface of the side surface of the box body to the inner side of the box body, and a wedge-shaped groove is formed on the outer side surface of the box body, and the wedge-shaped bottom surface of the wedge-shaped inverted buckle is at a certain distance L from the lower surface of the outer edge of the box body; the box body can be used for stacking up and down during operation, and when stacked up and down, the wedge-shaped bottom surface of the wedge-shaped inverted buckle in the upper box body just matches with the top surface of the corresponding wedge-shaped inverted buckle of the lower box body.

[0006] Preferably, the number of soft-pack battery slots in the box body is set to 2, each soft-pack battery slot has a pair of battery slot tabs, the battery slot tabs are provided with a fire extinguishing plate placement slot, and a fire extinguishing plate is placed in the fire extinguishing plate placement slot. Of course, according to needs, the number of soft-pack battery slots in the box body can be set to 1, or any other number, preferably an even number.

[0007] Preferably, there are two soft-pack battery slots in the box body, and a battery slot isolation block is provided between two adjacent soft-pack battery slots. The battery slot isolation block is divided into two sections by an isolation groove, and a fire extinguishing plate placement groove is provided at the isolation groove, and a fire extinguishing plate is placed in the fire extinguishing plate placement groove.

[0008] Preferably, when the box bodies are stacked up and down, there is no need to rotate the direction angle between the upper box body and the lower box body, and they can be directly stacked in the same direction.

[0009] Preferably, the distance L is 3mm-10mm.

[0010] Preferably, the box body is made of plastic material.

[0011] Preferably, the fire extinguishing tablet is a dry powder fire extinguishing tablet, and the dry powder fire extinguishing tablet is wrapped by a film, and the film can be melted instantly at a temperature above 200°.

[0012] Preferably, the fire extinguishing tablet is a perfluorohexanone fire extinguishing tablet.

[0013] The beneficial effects of the utility model are as follows: the soft pack battery packaging box with a wedge-shaped undercut and a fireproof sheet according to the utility model has the following advantages:

[0014] 1. By setting a wedge-shaped undercut inwardly on the side of the box body, and the wedge-shaped undercut is at a distance L from the lower surface of the edge of the box body, it is ensured that when the upper and lower boxes are stacked, the wedge-shaped undercut can limit the position of the upper and lower boxes to achieve stacking and fixing, thereby preventing the stacked boxes from being misplaced or rotated during transportation and damaging the aluminum-plastic film of the soft-pack battery placed in the soft-pack battery slot.

[0015] 2. Since the box body is made of plastic material, wedge-shaped undercuts are evenly arranged around the sides of the box body, which can provide a certain load-bearing support for the box bodies after they are stacked. In this way, after the soft-pack battery is placed in the soft-pack battery slot in the box body, the bottom surface of the entire box body will not sink and deform, but squeeze the box body below.

[0016] 3. The present application provides a fire extinguishing plate at the pole ear of the soft-pack battery slot or at the isolation slot of an adjacent soft-pack battery slot. The fire extinguishing plate can prevent a short circuit from occurring during the transportation of the soft-pack battery, thereby preventing the soft-pack battery from catching fire and ensuring the safety of the soft-pack battery transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide further understanding of the present invention and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute improper limitations on the present application.

[0018] Figure 1 This is a schematic diagram of the main structure of a soft-pack battery packaging box with a wedge-shaped undercut and a fireproof sheet after the upper and lower boxes are superimposed;

[0019] Figure 2 for Figure 1 Sectional view along line BB;

[0020] Figure 3 for Figure 2 Schematic diagram of the middle wedge undercut;

[0021] Figure 4 for Figure 2 A three-dimensional schematic diagram of

[0022] Figure 5 for Figure 1 Sectional view along line AA;

[0023] Figure 6 This is a schematic diagram of the process of stacking the upper and lower boxes of this application;

[0024] Figure 7 This is a schematic diagram of the effect of the upper and lower boxes being superimposed on each other;

[0025] Figure 8 This is a schematic diagram of the structure in which a fire extinguishing piece is provided at the battery slot tab of the present application;

[0026] Fig. 9 This is a structural schematic diagram of a fire extinguishing piece provided at the isolation groove for this application.

[0027] In the figure: 1-box body, 11-lower surface of the outermost edge of the box body, 2-soft-pack battery slot, 21-battery slot pole ear, 22-battery slot isolation block, 23-isolation slot, 3-wedge-shaped inverted buckle, 31-wedge-shaped inverted buckle top surface, 32-wedge-shaped inverted buckle wedge bottom surface, 4-fire extinguishing plate placement groove, 5-fire extinguishing plate. DETAILED DESCRIPTION

[0028] In order to more clearly illustrate the overall concept of the present application, a detailed description is given below in an illustrative manner in conjunction with the accompanying drawings.

[0029] like Figure 1-Figure 7 As shown, a soft pack battery packaging box with a wedge-shaped undercut and a fireproof sheet is provided, comprising a box body 1 made of plastic material, a pair of soft pack battery slots 2 are opened in the box body 1, wedge-shaped undercuts 3 are arranged around the box body 1, and the wedge-shaped undercuts 3 are opened inward from the uppermost surface of the side of the box body 1 to the inner side of the box body 1, and a wedge-shaped groove is formed on the outer side of the box body 1 (see Figure 6 or Figure 7 ).

[0030] like Figure 3-Figure 5As shown, the wedge-shaped inverted buckle 3 has a wedge-shaped inverted top surface 31, which coincides with the top surface of the box body 1. The wedge-shaped inverted buckle 3 has a wedge-shaped bottom surface 32. The lower surface of the outermost edge of the box body 1 is denoted as 11. The wedge-shaped bottom surface 32 of the wedge-shaped inverted buckle 3 is at a distance L from the lower surface 11 of the outermost edge of the box body 1. L is preferably selected from 3mm-10mm. The space formed by L is just used for the spatial overlap of the upper and lower box bodies. When the box bodies 1 are stacked up and down, the wedge-shaped bottom surface 32 of the wedge-shaped inverted buckle 3 in the upper box body 1 just matches with the top surface 31 of the corresponding wedge-shaped inverted buckle 3 of the lower box body 1. Such structural overlap can, on the one hand, ensure that the upper and lower box bodies are placed in a unique and fixed position when they are stacked, and prevent the stacking of the box bodies from being misplaced and loose during transportation, thereby damaging the aluminum-plastic film of the soft-pack battery. On the other hand, multiple wedge-shaped inverted buckles 3 are evenly arranged around the box body 1, which can provide a certain load-bearing support for the entire box body 1, so that after the box body 1 is loaded with soft-pack batteries, it is not easy to deform and it is not easy to squeeze the soft-pack batteries in the lower box body.

[0031] like Figure 6 As shown, the process of stacking the upper and lower box bodies 1 is that the upper and lower box bodies 1 are stacked in the same direction and position. There is no need to rotate the upper and lower box bodies 180 degrees for misalignment and stacking, and there is no need to make any other marks to distinguish the position and direction of the box bodies. The entire stacking process is very convenient and suitable for any ordinary operator in production.

[0032] like Figure 7 As shown, it is a schematic diagram of the effect after the upper and lower box bodies 1 are stacked. The present application can achieve a tight fit after the upper and lower box bodies are stacked, and the soft-pack batteries placed in a pair of soft-pack battery slots 2 in the box body 1 can be well stacked, so that no appearance damage or extrusion damage will be caused to the soft-pack batteries during the production trial process or the packaging and transportation process.

[0033] like Figure 8 As shown, each battery slot 2 has a pair of battery slot tabs 21, and a fire extinguishing sheet placement slot 4 is provided at the battery slot tab 21, and a fire extinguishing sheet 5 is placed in the fire extinguishing sheet placement slot. The fire extinguishing sheet 5 can use a dry powder fire extinguishing sheet as needed. When using a dry powder fire extinguishing sheet, the dry powder fire extinguishing sheet needs to be wrapped with a film, and the film needs to meet the performance of being able to melt instantly above 200°C; or the fire extinguishing sheet 5 uses a perfluorohexanone fire extinguishing sheet, which is more suitable for fire extinguishing environment requirements in harsh environments such as high-temperature fires. Since the soft-pack batteries placed in each battery slot 2 are positioned independently, a fire extinguishing sheet is provided in each battery slot 2, so that the corresponding soft-pack batteries can be independently extinguished when they are short-circuited and encounter fire, which is suitable for situations where the working environment may cause each soft-pack battery to short-circuit.

[0034] like Fig. 9As shown, another fire extinguishing piece arrangement structure is shown, in which a battery slot isolation block 22 is arranged between a pair of adjacent soft-pack battery slots 2, and the battery slot isolation block 22 is divided into two sections by an isolation slot 23, and a fire extinguishing piece placement slot 4 is arranged at the middle isolation slot 23, and a fire extinguishing piece 5 is placed in the fire extinguishing piece placement slot 4. The selection and Figure 8 The selection principle is the same. In this structure, two adjacent battery slots 2 share a fire extinguishing piece 5. If the soft-pack batteries installed in the two adjacent battery slots 2 are prone to short circuit at the same time, causing the two adjacent soft-pack batteries to need to be extinguished at the same time, you can choose Fig. 9 The setting structure of the fire extinguishing piece shown.

[0035] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. A soft pack battery packaging box with a wedge-shaped undercut and a fireproof sheet, characterized in that: The invention comprises a box body (1), wherein a soft-pack battery slot (2) is provided in the box body (1), and wedge-shaped undercuts (3) are arranged around the box body (1), wherein the wedge-shaped undercuts (3) are provided inwardly from the uppermost surface of the side surface of the box body (1) toward the inner side of the box body (1), and a wedge-shaped groove is formed on the outer side surface of the box body (1), and the wedge-shaped bottom surface of the wedge-shaped undercuts (3) is at a certain distance L from the lower surface of the outer edge of the box body (1); the box body (1) can be used for stacking up and down during operation, and when stacking up and down, the wedge-shaped bottom surface of the wedge-shaped undercuts (3) in the upper box body (1) just matches with the top surface of the corresponding wedge-shaped undercuts (3) in the lower box body (1).

2. A soft pack battery packaging box with a wedge-shaped undercut and a fireproof sheet according to claim 1, characterized in that: The number of soft-pack battery slots (2) in the box body (1) is two, each soft-pack battery slot (2) having a pair of battery slot tabs (21), a fire extinguishing piece placement slot (4) being provided at the battery slot tabs (21), and a fire extinguishing piece (5) being placed in the fire extinguishing piece placement slot (4).

3. A soft pack battery packaging box with a wedge-shaped undercut and a fireproof sheet according to claim 1, characterized in that: The number of soft-pack battery slots (2) in the box body (1) is two, a battery slot isolation block (22) is provided between two adjacent soft-pack battery slots (2), the battery slot isolation block (22) is divided into two sections by an isolation groove (23), a fire extinguishing piece placement groove (4) is provided at the isolation groove (23), and a fire extinguishing piece (5) is placed in the fire extinguishing piece placement groove (4).

4. A soft pack battery packaging box with a wedge-shaped undercut and a fireproof sheet according to claim 1, characterized in that: When the box bodies (1) are stacked up and down, there is no need to rotate the direction angle between the upper box body and the lower box body, and they can be directly stacked in the same direction.

5. The soft pack battery packaging box with a wedge-shaped undercut and a fireproof sheet according to claim 1, characterized in that: The distance L is 3mm-10mm.

6. A soft pack battery packaging box with a wedge-shaped undercut and a fireproof sheet according to claim 1, characterized in that: The box body (1) is made of plastic material.

7. A soft pack battery packaging box with a wedge-shaped undercut and a fireproof sheet according to claim 2 or 3, characterized in that: The fire extinguishing sheet (5) is a dry powder fire extinguishing sheet, which is wrapped by a film, and the film can be melted instantly at a temperature above 200°C.

8. A soft pack battery packaging box with a wedge-shaped undercut and a fireproof sheet according to claim 2 or 3, characterized in that: The fire extinguishing sheet (5) is a perfluorohexanone fire extinguishing sheet.

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