Packaging box for cylindrical batteries welded with chips

Abstract

The utility model discloses a packaging box for cylindrical batteries welded with chips, which comprises a containing box, and a storage box is arranged in the containing box. A buffer pad is laid on the storage box, a plurality of rows of cavity groups are arranged on the storage box, each row of cavity group is formed by arranging a plurality of cavities at intervals, each cavity can accommodate a cylindrical battery with a chip in a matched manner, and the cavities in two adjacent rows are arranged at intervals in a staggered manner; the cylindrical batteries welded with chips are effectively protected, the cylindrical batteries can be better fixed through the wave-shaped structure of the inner wall of the cavity for containing the cylindrical batteries, the chips can be better fixed and protected through the independent chip containing grooves, then the risk of short circuit caused by battery contact in the transportation process is reduced, the finger positions are arranged on the periphery of the cavity, and the service life of the cylindrical batteries is prolonged. And the cylindrical batteries can be taken from the storage box more conveniently.

Description

Technical Field

[0001] This utility model relates to the field of lithium-ion battery technology, specifically to a packaging box for cylindrical batteries after welding the battery plates. Background Technology

[0002] Lithium-ion batteries have high capacity and long cycle life, thus having a wide range of applications. Before a batch of lithium-ion batteries is produced and shipped, it is often necessary to conduct random inspections on some samples of the batch. When conducting random inspections of battery performance, workers usually need to weld metal tabs to the positive and negative terminals of the battery to connect to the testing equipment. The conductivity of the metal tabs on the testing equipment is used to test the battery performance.

[0003] Currently, cylindrical batteries have protruding structures after welding the tabs, which protrude from the battery casing and are inconvenient to transport. Existing packaging boxes are insufficient to protect cylindrical batteries with welded tabs. Using existing packaging boxes during transportation may result in the tabs coming into contact with the cells or the tabs of one battery coming into contact with the tabs of an adjacent battery, which could lead to a short circuit. Utility Model Content

[0004] The purpose of this invention is to provide a packaging box for cylindrical batteries after welding the tabs, in order to solve the problem of short circuits caused by the tabs coming into contact with the battery cells or with adjacent tabs during the transportation of cylindrical batteries after welding the tabs.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] A packaging box for cylindrical batteries after welding of foil includes a receiving box, in which a storage box is provided; a cushioning pad is laid on the storage box, and multiple rows of cavity groups are arranged on the storage box. Each row of cavity groups is composed of multiple cavities spaced apart, and each cavity can accommodate a cylindrical battery with foil. The cavities of adjacent rows are staggered.

[0007] Furthermore, the cavity includes a cylindrical battery compartment, and two electrode placement slots are provided around the cylindrical battery compartment. The two electrode placement slots are perpendicular to each other in space. One electrode placement slot is used to accommodate an electrode connected to the positive terminal, and the other electrode placement slot is used to accommodate an electrode connected to the negative terminal.

[0008] Furthermore, two finger grooves are symmetrically formed on the inner wall of the cylindrical battery compartment, and the depth of the finger grooves is less than the depth of the cylindrical battery compartment.

[0009] The inner cylindrical wall of the cylindrical battery slot has a wavy structure. The protruding part of the wavy structure contacts the curved surface of the cylindrical battery, while the concave part of the wavy structure does not contact the curved surface of the cylindrical battery.

[0010] Furthermore, the depth of the cylindrical battery slot is greater than the depth of the battery placement slot.

[0011] Furthermore, two finger slots are provided around the cylindrical battery slot, except for the area where the battery pad is placed. The two finger slots are positioned opposite each other around the cylindrical battery slot, and the finger slots are connected to the cylindrical battery slot. The depth of the finger slots is less than the depth of the cylindrical battery slot.

[0012] Furthermore, the storage box has a first notch at one of its top corners, and the buffer pad has a second notch at one of its top corners, with the first notch and the second notch being positioned opposite each other.

[0013] Furthermore, multiple columnar protrusions are evenly spaced on one surface of the buffer pad, and the positions of the columnar protrusions correspond to the positions of the cylindrical battery slots. Each columnar protrusion is configured to cooperate with the cylindrical battery slot. When the cylindrical battery is placed in the cylindrical battery slot and the buffer pad is placed on the top surface of the storage box, each columnar protrusion covers the surface of a cylindrical battery.

[0014] Furthermore, the storage box is rectangular, the cushioning pad is rectangular, the size of the cushioning pad is adapted to the size of the top surface of the storage box, and the cushioning pad and the storage box are located inside the receiving box.

[0015] The beneficial effects of this utility model are as follows:

[0016] 1. In this utility model, the cylindrical battery is placed in the cylindrical battery slot, which can prevent the cylindrical battery from shaking significantly in the cavity. The pad is placed in the pad placement slot, and each pad has an individual receiving slot, which can prevent the risk of short circuit caused by contact between adjacent pads. Each cylindrical battery with a pad is placed in a separate cavity, which effectively prevents two adjacent cylindrical batteries with pads from contacting each other and avoids the risk of short circuit caused by battery contact.

[0017] 2. In this invention, the inner wall of the cylindrical battery compartment has an uneven, wavy structure. The protruding parts of the wavy structure contact the curved surface of the cylindrical battery, which can limit the position of the cylindrical battery; the recessed parts of the wavy structure do not contact the curved surface of the cylindrical battery, so as to facilitate the removal of the cylindrical battery from the cavity.

[0018] 3. This utility model provides two finger slots as diagonal finger positions around the cylindrical battery slot, except for the slot where the battery plate is placed, so as to facilitate the picking up of the cylindrical battery with the thumb and forefinger.

[0019] 4. In this utility model, when the buffer pad is placed on the top surface of the storage box, each columnar protrusion covers the surface of a cylindrical battery. The columnar protrusion can fix and buffer each cylindrical battery cell. If vibration occurs during transportation, it can buffer and protect the cylindrical battery in the vertical direction. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall design of this utility model.

[0021] Figure 2 This is a schematic diagram of the storage box of this utility model.

[0022] Figure 3 This is a schematic diagram of the cavity of this utility model.

[0023] Figure 4 This is a schematic diagram of the buffer pad 3 of this utility model.

[0024] Figure 5 This is a schematic diagram of a cylindrical battery with a battery pack placed on a storage box.

[0025] The components include: a housing box 1; a storage box 2; a cavity 21; a cylindrical battery slot 211; a pad placement slot 212; a wave-shaped structure 213; a first notch 22; a buffer pad 3; a columnar protrusion 31; a second notch 32; a cylindrical battery with a pad 4; and a finger groove 5. Detailed Implementation

[0026] like Figure 1 As shown, the packaging box of this utility model includes a receiving box 1, a storage box 2, and a cushioning pad 3. The packaging box is used to store the metal battery after the welding plates are welded.

[0027] The container box 1 is generally a hinged carton with a lid, which serves to protect the battery inside the carton from pressure and facilitate transportation and storage.

[0028] like Figure 2 and Figure 3 As shown, the top surface of the storage box 2 is provided with multiple rows of cavities. Each row of cavities includes multiple cavities 21 that are evenly spaced apart. Each cavity 21 can accommodate a cylindrical battery 4 with a tab. The cavities 21 in adjacent rows are staggered. The cylindrical battery 4 with a tab is placed in the cavity 21, and the shape of the cavity 21 is adapted to the shape of the cylindrical battery 4 with a tab.

[0029] Each cavity 21 includes a cylindrical battery slot 211, which is cylindrical in shape and has a wavy inner wall. The cylindrical battery slot 211 connects to two electrode placement slots 212, which are spatially perpendicular to each other and whose shapes are adapted to the shapes of the electrodes. The cylindrical battery slot 211 is used to accommodate a cylindrical battery. One of the electrode placement slots 212 is used to accommodate an electrode connected to the positive terminal, and the other electrode placement slot 212 is used to accommodate an electrode connected to the negative terminal. The depth of the cylindrical battery slot 211 is greater than the depth of the electrode placement slots 212; the depth of the cylindrical battery slot 211 is 120-150 mm, and the depth of the electrode placement slots 212 is 60-100 mm.

[0030] like Figure 4 As shown, multiple columnar protrusions 31 are evenly spaced on one surface of the buffer pad 3. When the buffer pad 3 is placed on the top surface of the storage box 2, the side of the buffer pad 3 with columnar protrusions 31 contacts the top surface of the storage box 2.

[0031] The buffer pad 3 is placed on the top surface of the storage box 2. The position of the columnar protrusion 31 corresponds to the position of the cylindrical battery slot 211. When the buffer pad 3 is placed on the top surface of the storage box 2, each columnar protrusion 31 covers the surface of a cylindrical battery. The columnar protrusion 31 on the buffer pad 3 can play a role in fixing and buffering each cylindrical battery cell. If vibration occurs during transportation, it can play a role in buffering and protecting the cylindrical battery in the vertical direction.

[0032] The shape and size of the cushioning pad 3 correspond to the shape and size of the top surface of the storage box 2. The cushioning pad 3 is placed on the top surface of the storage box 2. The cushioning pad 3 and the storage box 2 are located inside the receiving box 1. In a specific embodiment, the cushioning pad 3 is rectangular and the storage box 2 is cuboid.

[0033] To indicate the placement direction of the cushioning pad 3 on the top surface of the storage box 2, a first notch 22 can be provided at one of the top corners of the storage box 2, and a second notch 32 can be provided at one of the top corners of the cushioning pad 3. When the second notch 32 corresponds to the position of the first notch 22, the placement direction of the cushioning pad 3 is correct.

[0034] like Figure 5 As shown, the cylindrical battery 4 with a retainer is placed inside the cavity 21. The shape of the cylindrical battery slot 211 matches the shape of the cylindrical battery, and the shape of the retainer placement slot 212 matches the shape of the retainer. After the cylindrical battery 4 with a retainer is placed inside the cavity 21, it can prevent the cylindrical battery from shaking significantly inside the cavity 21. Each cylindrical battery 4 with a retainer is placed in a separate cavity 21, effectively preventing two adjacent cylindrical batteries 4 with retainers from contacting each other and avoiding the risk of short circuit caused by battery contact.

[0035] Two finger grooves 5 are symmetrically formed on the inner wall of the cylindrical battery compartment 211. The depth of the finger grooves 5 is less than the depth of the cylindrical battery compartment 211. The two finger grooves 5 are arranged opposite each other on the outer periphery of the cylindrical battery compartment 211. The finger grooves 5 are connected to the cylindrical battery compartment 211, and the depth of the finger grooves 5 is less than the depth of the cylindrical battery compartment 211. The two finger grooves 5 serve as diagonal finger positions to facilitate the removal of the cylindrical battery.

[0036] The inner wall of the cylindrical battery slot is an uneven, wavy structure 213. The protruding parts of the wavy structure 213 contact the curved surface of the cylindrical battery, which can limit the position of the cylindrical battery. The concave parts of the wavy structure 213 do not contact the curved surface of the cylindrical battery, so that the cylindrical battery can be more easily removed from the cavity 21. When the cylindrical battery is placed in the cylindrical battery slot 211, the cylindrical battery and the cylindrical battery slot 211 form a closed cavity. The design of the concave part of the wavy structure 213 allows the air inside the closed cavity structure, i.e., the cylindrical battery slot 211, to be better discharged when placing and removing the cylindrical battery. This reduces the problem of excessive resistance and difficulty in removing the cylindrical battery when the compressed air inside the cylindrical battery slot 211 cannot be discharged.

[0037] The two battery holder slots 212 on the storage box 2 are two separate receiving cavities designed for the battery, used to protect and secure the battery. One battery holder slot 212 is used to receive the battery connected to the positive terminal, and the other battery holder slot 212 is used to receive the battery connected to the negative terminal. The bottom surface of the battery holder slot 212 coincides with the surface of the battery, effectively protecting the battery. Each battery has an individual receiving slot, which avoids the risk of short circuit caused by contact between adjacent batteries. By securing the battery through the battery holder slots 212, the angle of the battery is fixed after placement, and the whole unit is stable after placement, which can prevent the cylindrical battery from rotating and reduce transportation risks.

[0038] like Figure 1 and Figure 5 As shown, after the cylindrical battery 4 with the pad is placed in the cavity 21, the storage box 2 is placed into the housing box 1 as a whole, and then the buffer pad 3 is placed on the top surface of the storage box 2, so that the side of the buffer pad 3 with the columnar protrusion 31 contacts the top surface of the storage box 2. Finally, the cover plate of the housing box 1 is closed to complete the storage of the cylindrical battery 4 with the pad.

[0039] References to "one embodiment" or "some embodiments" in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized. "A plurality" means "two or more."

[0040] The above-described embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present application, and should all be included in the scope of protection of the present application.

Claims

1. A packaging box for cylindrical batteries after welding of foil, comprising a housing (1), characterized in that: The container (1) is provided with a storage box (2); the storage box (2) is covered with a cushioning pad (3), and the storage box (2) is provided with multiple rows of cavity groups. Each row of cavity groups includes multiple cavities (21) arranged at intervals. Each cavity (21) can accommodate a cylindrical battery (4) with a battery plate. The cavities (21) of adjacent rows are arranged at intervals.

2. A packaging box for a cylindrical battery after welding the foil, as described in claim 1, characterized in that: The cavity (21) includes a cylindrical battery slot (211), and two battery placement slots (212) are provided around the cylindrical battery slot (211).

3. A packaging box for a cylindrical battery after welding the foil, as described in claim 2, characterized in that: The cylindrical inner wall of the cylindrical battery compartment (211) has a wave-shaped structure (213).

4. A packaging box for a cylindrical battery after welding the foil, as described in claim 2, characterized in that: The depth of the cylindrical battery slot (211) is greater than the depth of the battery placement slot (212).

5. A packaging box for a cylindrical battery after welding the foil, as described in claim 2, characterized in that: Two finger grooves (5) are symmetrically formed on the inner wall of the cylindrical battery slot (211), and the depth of the finger grooves (5) is less than the depth of the cylindrical battery slot (211).

6. A packaging box for a cylindrical battery after welding the foil, as described in claim 1, characterized in that: The storage box (2) has a first notch (22) at one of its top corners, and the buffer pad (3) has a second notch (32) at one of its top corners. The first notch (22) and the second notch (32) are positioned opposite each other.

7. A packaging box for a cylindrical battery after welding the foil, as described in claim 1, characterized in that: The buffer pad (3) has a plurality of columnar protrusions (31) evenly spaced on one of its surfaces, and each columnar protrusion (31) is configured to cooperate with the cylindrical battery slot (211).

8. A packaging box for a cylindrical battery after welding the foil, as described in claim 1, characterized in that: The storage box (2) is rectangular, the cushioning pad (3) is rectangular, the size of the cushioning pad (3) is adapted to the size of the top surface of the storage box (2), and the cushioning pad (3) and the storage box (2) are located inside the container (1).

Images