Bare cell packaging structure and packaging box
By using the packaging structure of foam board and straps, the problem of bare-cell electrode ears being easily bent and shaking when stacked packaging is solved, achieving protection and packaging stability of the electrode ears.
Patent Information
- Application Number
- CN202422052293.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-22
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-08-22
AI Technical Summary
When the bare battery is stacked and packaged, the extreme ears are prone to bend and shake, causing the packaging structure to come into contact with the extreme ears and causing damage.
The packaging structure of two foam boards and straps is adopted. The foam board clamps the bare battery core and the straps fix the foam board to prevent the extreme ear from shaking, and the design of the foam board prevents the extreme ear from contacting the inner wall of the packaging box.
Effectively prevent damage to the extreme ear, ensure that the extreme ear is not damaged during the packaging process, and improve the stability of the packaging.
Smart Images
Figure CN223031792U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of battery production and manufacturing, and more specifically, to a bare battery cell packaging structure and a packaging box. Background Art
[0002] During the production of bare battery cells, it is necessary to package the finished bare battery cells for subsequent production and sales. Usually, the bare battery cells are stacked together for packaging.
[0003] After research by the inventor, it is found that when the bare battery cells are stacked and packaged, the tabs at the ends of the bare battery cells are prone to bending and shaking up and down. The packaging structure will affect the tabs and come into contact with the tabs, which will cause damage to the tabs. Summary of the Utility Model
[0004] The purpose of the utility model is to provide a bare battery cell packaging structure and a packaging box, which can prevent the packaging structure from contacting the tabs and causing damage to the tabs, and can support the tabs to avoid shaking of the tabs.
[0005] The embodiments of the utility model are implemented as follows:
[0006] In a first aspect, the utility model provides a bare battery cell packaging structure, including two foam boards and a binding strap. The foam boards are used to clamp the bare battery cells. The tabs at both ends of the bare battery cells are arranged along a first direction. The length of the foam boards along the first direction is greater than the length of the bare battery cells along the first direction. The binding strap is used to bundle and fix the foam boards.
[0007] In an alternative embodiment, a receiving groove is formed on the inner side of the foam board, and the receiving groove is used to receive the bare battery cells.
[0008] In an alternative embodiment, a supporting portion for supporting the tabs is arranged in the receiving groove.
[0009] In an alternative embodiment, the supporting portion is in a groove shape, and the depth of the supporting portion is less than the depth of the receiving groove.
[0010] In an alternative embodiment, a gap is arranged between the foam boards.
[0011] In an alternative embodiment, a clamping groove is arranged on the outer side of the foam board, and the binding strap is located in the clamping groove.
[0012] In an alternative embodiment, the depth of the clamping groove is greater than or equal to the thickness of the binding strap.
[0013] In a second aspect, the present utility model provides a packaging box, comprising a box body, a foam, and a bare cell packaging structure as described in any one of the foregoing embodiments. A cavity is provided in the box body, and the bare cell packaging structures are stacked and placed in the cavity. The foam is used to fill the gap between the bare cell packaging structure and the inner wall of the box body.
[0014] In an optional embodiment, the foam comprises a plurality of spaced-apart placement grooves, and the bare cell packaging structures are stacked and placed up and down in the placement grooves.
[0015] In an optional embodiment, the box body comprises a base and an upper cover. The upper cover is covered on the base, and a tie strap is further included for fixing the base and the upper cover.
[0016] The beneficial effects of the embodiments of the present utility model are as follows:
[0017] The bare cell packaging structure of the present utility model comprises two foam boards and a binding strap. The foam boards are used to clamp the bare cell. The tab ears at both ends of the bare cell are arranged along a first direction. The length of the foam board along the first direction is greater than the length of the bare cell along a second direction. The binding strap is used to bind and fix the foam boards. This bare cell packaging structure clamps the bare cell between two foam boards and realizes the wrapping and fixing of the bare cell through the binding strap, preventing the tab ears from shaking. The length of the foam board is greater than the length of the bare cell, so that when the bare cell is clamped between the foam boards, the tab ears at both ends of the bare cell are prevented from protruding out of the foam board. When the bare cell packaging structure is placed in the packaging box, the tab ears are supported by the foam board between the tab ears and the inner wall of the packaging box, preventing the tab ears from contacting the inner wall of the packaging box and damaging the tab ears. Description of the Drawings
[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required to be used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.
[0019] Figure 1 It is a schematic structural diagram of the bare cell packaging structure provided by the first embodiment of the present utility model;
[0020] Figure 2 It is a cross-sectional view of the bare cell packaging structure provided by the first embodiment of the present utility model;
[0021] Figure 3 It is an exploded structural diagram of the packaging box provided by the second embodiment of the present utility model.
[0022] Icon: 100 - Bare battery cell packaging structure; 10 - Foam board; 11 - Accommodating groove; 12 - Support part; 13 - Binding strap; 14 - Card slot; 20 - Bare battery cell; 21 - Tab; 200 - Packaging box; 30 - Box body; 31 - Upper cover; 32 - Base; 40 - Foam; 41 - Placing groove; 50 - Cable tie. Detailed implementation manners
[0023] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. The components of the embodiments of the present utility model usually described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.
[0024] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the present utility model claimed, but merely represents the selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts fall within the scope of protection of the present utility model.
[0025] It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.
[0026] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.
[0027] In addition, terms such as "horizontal" and "vertical" do not mean that the components are required to be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.
[0028] In the description of the present utility model, it should also be noted that, unless otherwise clearly specified and defined, the terms "set", "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0029] First Embodiment
[0030] Please refer to Figure 1 , this embodiment provides a bare battery cell packaging structure 100, which includes two foam boards 10 and a binding strap 13. The foam boards 10 are used to clamp the bare battery cell 20. The tabs 21 at both ends of the bare battery cell 20 are arranged along the first direction. The length of the foam board 10 along the first direction is greater than the length of the bare battery cell 20 along the first direction. The binding strap 13 is used to bundle and fix the foam boards 10.
[0031] It can be understood that in this embodiment, the bare battery cell 20 is clamped between two foam boards 10, and the bare battery cell 20 is wrapped and fixed by the binding strap 13 to prevent the tabs 21 from shaking. The length of the foam board 10 is greater than the length of the bare battery cell 20, so that when the bare battery cell 20 is clamped between the foam boards 10, the tabs 21 at both ends of the bare battery cell 20 will not protrude from the foam boards 10. When the bare battery cell packaging structure 100 is placed in the packing box 200, the tabs 21 are supported by the foam boards 10 between the inner wall of the packing box 200, preventing the tabs 21 from contacting the inner wall of the packing box 200 and damaging the tabs 21.
[0032] Furthermore, the length of the foam board 10 along the second direction is also greater than the length of the bare battery cell 20 along the second direction. Specifically, the second direction is perpendicular to the first direction. That is to say, the length and width of the foam board 10 are greater than the length and width of the bare battery cell 20, so that the foam board 10 can completely cover the bare battery cell 20.
[0033] Please refer to Figure 2 , a receiving groove 11 is formed on the inner side of the foam board 10. The receiving groove 11 is used to receive the bare battery cell 20. It can be understood that the shape of the receiving groove 11 is the same as the shape of the bare battery cell 20. When the bare battery cell 20 is clamped between two foam boards 10, the bare battery cell 20 abuts against the side wall of the receiving groove 11 and is thus clamped in the receiving groove 11. When the bare battery cell packaging structure 100 vibrates, the bare battery cell 20 can be fixed under the support of the side wall of the receiving groove 11, preventing the bare battery cell 20 from moving relative to the foam board 10 and slipping out of the foam board 10.
[0034] In order to fix the tab 21 of the bare battery cell 20, in this embodiment, a support portion 12 for supporting the tab 21 is provided in the accommodation groove 11. It can be understood that the tabs 21 are inserted on both sides of the bare battery cell 20. The tabs 21 are in the shape of thin sheets and have a thickness less than that of the bare battery cell 20. When the bare battery cell 20 is placed in the accommodation groove 11, the tabs 21 are spaced from the bottom of the accommodation groove 11 and lack support. Therefore, the support portion 12 is provided in this embodiment, and the support portion 12 abuts against the tab 21 to prevent the tab 21 from shaking.
[0035] Furthermore, the support portion 12 is in the shape of a groove. The depth of the support portion 12 is less than the depth of the accommodation groove 11. It can be understood that protrusions are provided at both ends of the accommodation groove 11, thereby forming a stepped bottom wall. The protrusions on the bottom walls at both ends of the accommodation groove 11 form the support portion 12 to support the tab 21.
[0036] In order to facilitate opening the foam board 10 to take out the bare battery cell 20, a gap is provided between the foam boards 10. It can be understood that when it is necessary to take out the bare battery cell 20, fingers can be inserted into the gap to facilitate separating the two foam boards 10. Specifically, in order to provide a gap between the foam boards 10, the depth of the accommodation groove 11 is less than half of the thickness of the bare battery cell 20. It can be understood that when the bare battery cell 20 abuts against the bottom wall of the accommodation groove 11, a gap is formed between the two foam boards 10.
[0037] In order to fix the position of the binding band 13, a card slot 14 is provided on the outer side of the foam board 10. The binding band 13 is located in the card slot 14. It can be understood that in this embodiment, the foam board 10 is in the shape of a cube and includes six faces. The inner side of the foam board 10 refers to the two opposite faces of the two foam boards 10. The outer side of the foam board 10 refers to the other three faces except the inner side around the foam board 10. That is to say, the mutually connected card slots 14 are provided on the three side faces so that the binding band 13 can be arranged around the foam board 10 in a circle. It can be understood that by arranging the binding band 13 in the card slot 14 in this embodiment, it can be prevented that when the bare battery cell packaging structure 100 vibrates, the binding band 13 and the foam board 10 move relatively and fall off. Fixing the binding band 13 can enhance the clamping stability of the foam board 10.
[0038] Furthermore, the depth of the card slot 14 is greater than or equal to the thickness of the binding band 13. It can be understood that when the binding band 13 binds and fixes the foam board 10, the binding band 13 can not exceed the surface of the foam board 10. When the foam boards 10 are stacked up and down, the foam boards 10 of different bare battery cell packaging structures 100 can be completely attached to each other, reducing the distance between the bare battery cell packaging structures 100, so that more bare battery cell packaging structures 100 can be placed in the same space.
[0039] Optionally, in this embodiment, two straps 13 are provided outside the foam board 10. In other embodiments, three or more straps 13 may be provided on the foam board 10. The present utility model does not limit the number of straps 13 as long as the clamping and fixing between the foam boards 10 can be achieved.
[0040] Second Embodiment
[0041] Please refer to Figure 3 , this embodiment provides a packing box 200, which includes a box body 30, a foam 40, and the bare battery cell packaging structure 100 provided in the above first embodiment. A cavity is provided inside the box body 30. The bare battery cell packaging structures 100 are stacked and placed in the cavity. The foam 40 is used to fill the gap between the bare battery cell packaging structure 100 and the inner wall of the box body 30.
[0042] Specifically, the foam 40 includes a plurality of placement grooves 41 arranged at intervals. The bare battery cell packaging structures 100 are stacked up and down in the placement grooves 41.
[0043] Furthermore, the box body 30 includes a base 32 and an upper cover 31. The upper cover 31 is covered on the base 32. The packing box 200 further includes a tie strap 50 for fixing the base 32 and the upper cover 31.
[0044] The working principle and process of the packing box 200 and the bare battery cell packaging structure 100 provided in this embodiment are as follows:
[0045] Lay a foam board 10 flat so that the accommodation groove 11 faces upward. Place the bare battery cell 20 in the accommodation groove 11, and place the electrode tabs 21 on the support portion 12. Place another foam board 10 above the bare battery cell 20 so that the bare battery cell 20 is clamped into the accommodation groove 11 of the upper foam board 10. Press the two foam boards 10 tightly and fix the two foam boards 10 with the strap 13.
[0046] After completing the packaging of multiple bare battery cells 20, place the foam 40 in the cavity of the base 32. Stack the multiple bare battery cell packaging structures 100 up and down, and place the stacked bare battery cell packaging structures 100 into one placement groove 41. Repeat the above stacking and placement steps to fill each placement groove 41 with the bare battery cell packaging structures 100. Cover the upper cover 31 on the base 32 and complete the encapsulation and fixing with the tie strap 50.
[0047] The beneficial effects of the bare battery cell packaging structure 100 of the packing box 200 provided in this embodiment are as follows:
[0048] The bare cell packaging structure 100 of the present utility model includes two foam boards 10 and a binding strap 13. The foam boards 10 are used to clamp the bare cell 20. The tabs 21 at both ends of the bare cell 20 are arranged along a first direction. The length of the foam board 10 along the first direction is greater than the length of the bare cell 20 along a second direction. The binding strap 13 is used to bundle and fix the foam boards 10. The bare cell packaging structure 100 wraps and fixes the bare cell 20 by clamping the bare cell 20 between two foam boards 10 and using the binding strap 13. The length of the foam board 10 is greater than the length of the bare cell 20, so that when the bare cell 20 is clamped between the foam boards 10, the tabs 21 at both ends of the bare cell 20 do not protrude from the foam boards 10. When the bare cell 20 is placed into the packaging structure, the tabs 21 are supported by the foam boards 10 between the tabs 21 and the inner wall of the packaging structure, preventing the tabs 21 from contacting the packaging structure and damaging the tabs 21.
[0049] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A bare cell packaging structure, characterized in that: It includes two foam boards and a binding strap, the foam board is used to clamp the bare battery cell, the pole ears at both ends of the bare battery cell are arranged along a first direction, the length of the foam board along the first direction is greater than the length of the bare battery cell along the first direction, and the binding strap is used to bind and fix the foam board.
2. The bare cell packaging structure according to claim 1, characterized in that: A receiving groove is provided on the inner side of the foam plate, and the receiving groove is used to receive the bare battery cell.
3. The bare cell packaging structure according to claim 2, characterized in that: A supporting portion for supporting the tab is arranged in the accommodating groove.
4. The bare cell packaging structure according to claim 3, characterized in that: The supporting portion is groove-shaped, and the depth of the supporting portion is smaller than the depth of the accommodating groove.
5. The bare cell packaging structure according to claim 1, characterized in that: Gaps are arranged between the foam plates.
6. The bare cell packaging structure according to claim 1, characterized in that: A slot is provided on the outer side of the foam board, and the binding strap is located in the slot.
7. The bare cell packaging structure according to claim 6, characterized in that: The depth of the card slot is greater than or equal to the thickness of the binding strap.
8. A packaging box, characterized in that: It comprises a box body, foam and a bare cell packaging structure as described in any one of claims 1-7, wherein a cavity is provided in the box body, the bare cell packaging structure is stacked in the cavity, and the foam is used to fill the gap between the bare cell packaging structure and the inner wall of the box body.
9. The packaging box according to claim 8, characterized in that: The foam includes a plurality of placement grooves arranged at intervals, and the bare cell packaging structure is stacked up and down and placed in the placement grooves.
10. The packaging box according to claim 8, characterized in that: The box body comprises a base and an upper cover, wherein the upper cover is arranged on the base, and further comprises a cable tie for fixing the base and the upper cover.