Lithium battery pack with transparent shell
By using a transparent outer shell and transparent PACK auxiliary materials design, the problem of not being able to visually observe the internal components of traditional lithium battery packs is solved, achieving a transparent appearance and fault detection for lithium battery packs, thus improving product quality and appearance.
Patent Information
- Application Number
- CN202323641183.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-29
- Publication Date
- 2025-01-10
- Estimated Expiration
- 2033-12-29
AI Technical Summary
Traditional lithium battery packs use non-transparent casings, making it impossible to see the internal contents directly, which leads to the inability to detect quality problems and fault points in a timely manner.
The design features a transparent shell and transparent PACK components. The lithium battery module is assembled using laser welding and hot-melt connection methods. Transparent silicone pads and copper terminal posts are used to fix the structure, ensuring the stability and visibility of the battery assembly.
It achieves a transparent appearance for lithium battery packs, allowing for intuitive observation of the internal structure and fault points, improving product quality transparency and appearance, and enabling timely detection of anomalies and faults.
Smart Images
Figure CN222338390U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of lithium battery packs, in particular to a lithium battery pack with a transparent shell. Background Art
[0002] Traditional lithium batteries generally use non-transparent shells to package lithium battery packs, and the internal battery conditions are often not visible, resulting in an inability to intuitively understand the quality of the lithium battery pack and whether the merchant is cutting corners. It is also impossible to intuitively see the degree of material aging of the internal lithium battery components and obvious fault points, resulting in failure to discover them in time and thus missing the opportunity for good repair and replacement. Utility Model Content
[0003] The technical problem to be solved by the utility model is to provide a lithium battery pack with a transparent shell, which can visually see the structure of the lithium battery pack and is convenient for troubleshooting.
[0004] The technical solution adopted by the utility model is a transparent shell lithium battery pack, including a transparent shell structure, a lithium battery module, a transparent base, a BMS, a fixing pressure strip, a fastening screw, and a transparent silicone pad. The transparent shell structure is composed of a shell and an upper cover. Copper columns are fixed at two adjacent corners of the top of the upper cover. The two copper columns are respectively a positive copper pole column and a negative copper pole column. The positive copper pole column and the negative copper pole column are fixed with red epoxy resin glue and black epoxy resin glue respectively.
[0005] As a further solution of the utility model: the lithium battery module is composed of a number of single battery cells, an aluminum connecting sheet, a PC insulating sheet, a PVC corner protector, and a PET plastic steel strip. The several single battery cells are welded together by laser welding through the aluminum connecting sheet. A PC insulating sheet is sandwiched between two adjacent single battery cells to prevent short circuit between the lithium battery modules. A rivet nut is fixed on the upper side of the pressure strip, and a BMS is fixed on the top of the rivet nut by a short screw. L-shaped aluminum connecting sheets are fixed on one side of the single battery cells at both ends of the lithium battery module. The two L-shaped aluminum connecting sheets serve as the positive and negative lead-out terminals and voltage collection points of the battery module respectively. PVC corner protectors are placed on the four edges of the lithium battery module. The PVC corner protectors and the outside of the several single battery cells are bundled with PET plastic steel strips, and the head and tail connections of the PET plastic steel strips are fixed by hot melting.
[0006] As a further solution of the utility model: an arch bridge structure is arranged in the middle of the aluminum connecting piece, and the arrangement of the arch bridge structure can absorb the displacement caused by the expansion of the battery cell, reduce the stress on the welding point caused by the expansion of the battery cell, and thus ensure the stability of the connection.
[0007] As a further solution of the utility model: external wires are used to electrically connect one of the L-shaped aluminum connecting pieces and the positive copper pole, another L-shaped aluminum connecting piece and the BMS input negative pole, and the BMS output negative pole and the negative copper pole, respectively, wherein the two L-shaped aluminum connecting pieces are the positive pole and the negative pole of the lithium battery module, respectively.
[0008] As a further solution of the utility model: the transparent base is provided with bolt holes, and the two ends of the pressure strip are fixed above the transparent base by long bolts passing through the bolt holes and cooperating with nuts, which is used to fix the lithium battery module on the transparent base, and the outer side of the transparent base and the inner side of the transparent outer shell are tightly fitted to prevent the lithium battery module from shaking in the front, back, left and right directions inside the transparent outer shell; both ends of the top of the pressure strip are fixed with protrusions, and transparent silicone pads are pasted on the upper side of the protrusions to reduce the amplitude of the lithium battery module shaking in the up and down directions inside the shell.
[0009] As a further solution of the utility model: the upper cover is snap-connected on the upper part of the shell.
[0010] Compared with the prior art, the utility model has the following advantages: the utility model adopts a transparent shell and transparent PACK auxiliary materials, which can intuitively display the internal structure of the product to consumers, ensuring product quality while also improving product appearance. It can intuitively display the structure of the internal components of the lithium battery, the degree of aging of the internal materials, and the fault points, and can detect internal battery abnormalities in advance and eliminate early faults without the use of equipment and instruments for detection. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:
[0012] Figure 1 It is an exploded stereoscopic diagram of the overall structure of a transparent shell lithium battery pack of the utility model.
[0013] Figure 2 This is a three-dimensional diagram of the structure of part A in a transparent shell lithium battery pack of the utility model
[0014] In the attached figure:
[0015] 1. Shell; 2. Transparent base; 3. Upper cover; 4. Copper column; 5. BMS; 6. Pressure strip; 7. Long bolt; 8. Nut; 9. Transparent silicone pad; 10. Single core; 11. Aluminum connecting piece; 12. L-shaped aluminum connecting piece; 13. PET plastic steel belt; 14. PVC corner guard; 15. PC insulation sheet; 16. Short screw; 6.1. Rivet nut. DETAILED DESCRIPTION
[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0017] The utility model provides a technical solution to solve the existing problems raised in the background technology.
[0018] Combined with Figure 1 It can be known that the device includes a transparent shell structure, a lithium battery module, a transparent base 2, a BMS 5, a fixing strip 6, a fastening screw, and a transparent silicone pad 9. The transparent shell structure is composed of a shell 1 and an upper cover 3. Copper columns 4 are fixed at two adjacent corners of the top of the upper cover 3. The two copper columns 4 are respectively a positive copper column and a negative copper column. The positive copper column and the negative copper column are fixed with red epoxy resin glue and black epoxy resin glue respectively.
[0019] The lithium battery module is composed of a plurality of single cells 10, an aluminum connecting sheet 11, a PC insulating sheet 15, a PVC corner protector, and a PET plastic steel belt 13. The plurality of single cells 10 are welded together by laser welding through the aluminum connecting sheet 11. A PC insulating sheet 15 is sandwiched between two adjacent single cells 10 to prevent short circuits between lithium battery modules. A rivet nut 6.1 is fixed on the upper side of the pressure strip 6. The top of the rivet nut 6.1 is fixed with a BMS5 by a short screw 16. The two sides of the lithium battery module An L-shaped aluminum connecting piece 12 is fixed on one side of the single battery cell 10 at the end. The two L-shaped aluminum connecting pieces 12 serve as the positive and negative lead-out terminals and voltage collection points of the battery module respectively. PVC corner guards 14 are placed at the four edges of the lithium battery module. The PVC corner guards 14 and the external parts of several single battery cells 10 are tied with PET plastic steel belts 13. The head and tail joints of the PET plastic steel belts 13 are fixed by hot melting. An arch bridge structure is arranged in the middle of the aluminum connecting piece 11. The arrangement of the arch bridge structure can be Absorb the displacement caused by the expansion of the battery cell, reduce the stress caused by the expansion of the battery cell on the welding point, and thus ensure the stability of the connection; one of the L-shaped aluminum connecting pieces 12 and the positive copper pole, another L-shaped aluminum connecting piece 12 and the BMS5 input negative pole, and the BMS5 output negative pole and the negative copper pole are electrically connected using external wires, wherein the two L-shaped aluminum connecting pieces 12 are respectively the positive pole of the lithium battery module and the negative pole of the lithium battery module; the transparent base 2 is provided with bolt holes, and the two ends of the pressure strip 6 are fixed on the top of the transparent base 2 by long bolts 7 passing through the bolt holes and matching with nuts 8, which are used to fix the lithium battery module on the transparent base 2, and the outer side of the transparent base 2 is tightly fitted with the inner side of the transparent outer shell 1 to prevent the lithium battery module from shaking in the front, back, left and right directions in the transparent outer shell 1; both ends of the top of the pressure strip 6 are fixed with protrusions, and the transparent silicone pad 9 is pasted on the upper side of the protrusions to reduce the amplitude of the lithium battery module shaking in the up and down directions inside the shell; the upper cover 3 is clamped on the upper side of the shell 1.
[0020] The working principle of the present application is as follows: when assembling a lithium battery pack, firstly, a PC insulating sheet 15 is sandwiched between several single cells 10, and then PVC corner strips 14 are placed at the four edges of the lithium battery module, and then they are fixed by bundling with PET plastic steel strips 13, and then the aluminum connecting sheet 11 and the L-shaped aluminum connecting sheet 12 are laser welded to one side of the single cell 10, and then the BMS5 is fixed to the top of the rivet nut 6.1 by a short screw 16, and then the pressure strip 6 is placed above several single cells 10, and then the wire is used to fix it. An L-shaped aluminum connecting piece 12 is electrically connected to the negative input electrode of BMS5, and then the long bolt 7 is passed through the bolt hole and matched with the nut 8 to fix the pressure strip 6 on the transparent base 2, and then the transparent silicone pad 9 is pasted on the upper side of the protrusion and the upper cover 3 is placed on the pressure strip 6. Through the wire, another L-shaped aluminum connecting piece 12 and the positive copper pole, and the BMS5 output negative pole and the negative copper pole are electrically connected, and then the lithium battery module is placed in the shell 1, and then the upper cover 3 is snap-fitted and fixed to the top of the shell 1 to seal the top and the assembly is completed.
[0021] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.
Claims
1. A transparent shell lithium battery pack, characterized in that: The invention comprises a transparent shell structure, a lithium battery module, a transparent base (2), a BMS (5), a pressure strip (6), a short screw (16), and a transparent silicone pad (9). The transparent shell structure is composed of a shell (1) and an upper cover (3). Copper columns (4) are fixed at two adjacent corners of the top of the upper cover (3). The two copper columns (4) are respectively a positive copper column and a negative copper column. The positive copper column and the negative copper column are respectively fixed by red epoxy resin glue and black epoxy resin glue.
2. A transparent shell lithium battery pack according to claim 1, characterized in that: The lithium battery module is composed of a plurality of single cells (10), an aluminum connecting sheet (11), a PC insulating sheet (15), a PVC corner protector (14), and a PET plastic steel belt (13). The plurality of single cells (10) are welded together by means of laser welding via the aluminum connecting sheet (11). A PC insulating sheet (15) is sandwiched between two adjacent single cells (10). A rivet nut (6.1) is fixed on the upper side of the pressure strip (6). A BMS (5) is fixed on the top of the rivet nut (6.1) via a short screw (16). L-shaped aluminum connecting sheets (12) are fixed on one side of the single cells (10) at both ends of the lithium battery module. PVC corner protectors (14) are placed at the four edges of the lithium battery module. The PVC corner protectors (14) and the plurality of single cells (10) are bundled with a PET plastic steel belt (13) on the outside. The head and tail joints of the PET plastic steel belt (13) are fixed by means of hot melting.
3. A transparent shell lithium battery pack according to claim 2, characterized in that: An arch bridge structure is arranged in the middle of the aluminum connecting piece (11).
4. A transparent shell lithium battery pack according to claim 2, characterized in that: External wires are used to electrically connect one of the L-shaped aluminum connecting pieces (12) and the positive copper pole, another L-shaped aluminum connecting piece (12) and the BMS (5) input negative pole, and the BMS (5) output negative pole and the negative copper pole.
5. A transparent shell lithium battery pack according to claim 1, characterized in that: The transparent base (2) is provided with bolt holes, and the two ends of the pressure strip (6) are fixed on the top of the transparent base (2) by long bolts (7) passing through the bolt holes and cooperating with nuts (8). The outer side of the transparent base (2) and the inner side of the transparent outer shell (1) are tightly fitted, and the two ends of the top of the pressure strip (6) are fixed with protrusions, and a transparent silicone pad (9) is pasted on the upper side of the protrusions.
6. A transparent shell lithium battery pack according to claim 1, characterized in that: The upper cover (3) is snap-connected on the upper part of the shell (1).