Novel shell structure and battery assembly

Abstract

The utility model discloses a novel shell structure and a battery assembly, and relates to the technical field of battery core shell equipment. The novel shell structure comprises an outer shell, an inner shell and an outer shell, the partition plates are arranged in the shell at intervals in the preset direction; the cover plate is arranged at the upper end of the shell; the plurality of pole columns are respectively and oppositely embedded on the shell according to a preset sequence; wherein the shell, the plurality of partition plates and the cover plate are enclosed to form a plurality of battery cell accommodating cavities, and the two sides of the plurality of battery cell accommodating cavities are respectively and oppositely provided with the pole columns. The utility model solves the problems that the shell in the traditional battery structure adopts punch forming, the internal cavity structure is single, the connection mode of the pole and the shell is unstable, and the welding process of the battery core connecting piece needs to be improved; and the problems of complex pack structure, tedious top cover structure, low height space utilization rate, high production cost and low production efficiency due to the fact that most cover plate structures are split and comprise lower plastic parts are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of battery shell equipment, and particularly relates to a novel shell structure and battery assembly. BACKGROUND

[0002] With the continuous development and popularization of electronic equipment, higher requirements are put forward for the performance, volume, cost and production efficiency of batteries.

[0003] In the traditional battery structure, the shell is formed by stamping, the internal cavity structure is single, the connection mode of the pole and the shell is not stable, and the welding process of the battery connection sheet needs to be improved. In addition, the cover plate structure is mostly split type, which includes a lower plastic part, resulting in a complex pack structure, a complicated top cover structure, low height space utilization, high production cost and low production efficiency. In view of the above problems, no effective solution has been proposed so far. SUMMARY

[0004] The utility model aims to provide a novel shell structure and battery assembly to at least solve one of the problems existing in the prior art.

[0005] Technical scheme: a novel shell structure comprises:

[0006] a shell;

[0007] a plurality of partition plates are arranged in the shell in a preset direction;

[0008] a cover plate is arranged on the upper end of the shell; and

[0009] a plurality of poles are arranged in the shell in a preset order;

[0010] Among them, the shell, the plurality of partition plates and the cover plate form a plurality of battery cell accommodating cavities, and the two sides of the plurality of battery cell accommodating cavities are respectively provided with the poles.

[0011] Preferably, the shell, the plurality of partition plates and the cover plate are integrally injection molded.

[0012] Preferably, the shell comprises a horizontally arranged bottom plate, the periphery of the bottom plate is surrounded by a vertical plate, and a plurality of partition plates are arranged between the vertical plates.

[0013] Preferably, the top of the vertical plate is provided with a step, and the top of the step and the plurality of partition plates is provided with a limiting protrusion.

[0014] Preferably, the cover plate is provided with a plurality of limiting cavities at intervals near one side of the shell, and the limiting cavities and the outer edge of the cover plate are provided with a distance, and the distance and the adjacent limiting cavities form a limiting groove, and the limiting groove is clamped with the limiting convex part.

[0015] Preferably, the shell is provided with an extension part near the pole column.

[0016] Preferably, the extension part is provided with a plurality of limiting grooves matched with the shape of the pole column, and the pole column is arranged in the limiting groove.

[0017] Preferably, the pole column is provided with a first welding surface and a second welding surface.

[0018] Preferably, the pole column is further provided with a cell connecting sheet.

[0019] In order to achieve the above purpose, according to another aspect of the present application, a battery assembly is also provided.

[0020] According to the battery assembly of the present application, the new shell structure is provided.

[0021] Beneficial effects: in the embodiment of the present application, the integrated molding is adopted, and the plurality of cell accommodating cavities are formed by the shell, the plurality of partition plates and the cover plate, and the pole columns are arranged on the two sides of the plurality of cell accommodating cavities, so that the structural stability and the space utilization rate are improved, the technical effects of simplifying the structure and improving the production efficiency are realized, and the technical problems of the shell structure of the battery, such as the single internal cavity structure of the shell formed by stamping, the unstable connection mode of the pole column and the shell, and the welding process of the cell connecting sheet, are solved; and the cover plate structure is mostly split type, which contains a lower plastic part, so that the pack structure is complex, the top cover structure is complicated, the height space utilization rate is low, the production cost is high, and the production efficiency is low. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a three-dimensional schematic view of a new shell structure of the utility model;

[0023] Figure 2 is another three-dimensional schematic view of a new shell structure of the utility model;

[0024] Figure 3 is a front view of a new shell structure of the utility model;

[0025] Figure 4 is a three-dimensional schematic view of the inside of a new shell structure of the utility model;

[0026] Figure 5 is a front view of the inside of a new shell structure of the utility model;

[0027] Figure 6 is the novel shell structure A-A internal front view of the utility model

[0028] Figure 7 is the novel shell structure partial enlarged schematic view of the utility model; and

[0029] Figure 8 is the cover plate three-dimensional schematic view of the novel shell structure of the utility model.

[0030] The reference signs are:

[0031] 10, shell; 101, bottom plate; 102, vertical plate; 1021, step; 103, extension; 1031, limiting groove;

[0032] 20, partition plate;

[0033] 30, cover plate; 301, limiting cavity; 302, interval; 303, limiting groove;

[0034] 40, pole; 401, first welding surface; 402, second welding surface;

[0035] 50, electric core accommodating cavity;

[0036] 60, limiting convex part;

[0037] 70, electric core connecting piece;

[0038] 80, limiting plate. DETAILED DESCRIPTION

[0039] In order to make the person skilled in the art better understand the present application scheme, the technical scheme in the embodiments of the present application will be described clearly and completely in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor should belong to the scope of protection of the present application.

[0040] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not necessarily limit to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0041] In addition, the terms "mounting", "setting", "provided with", "connected", "connected", "sleeved" should be broadly understood. For example, it can be fixedly connected, detachably connected, or integrally configured; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediate medium, or it can be internal communication between two devices, elements or components. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0042] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0043] As shown in Figures 1-8 The present application relates to a new shell structure and battery assembly. As shown in Figures 1-4 The new shell structure includes: a shell 10; the shell 10 is the external frame of the entire structure, providing mechanical strength and physical protection; at the same time, it can also realize the effect of assembling other components, thereby realizing the effect of multiple functions. Of course, the material of the shell 10 can be: high-strength plastic, aluminum alloy or other alloy with excellent corrosion resistance, which can realize the effect of improving the service life.

[0044] A plurality of partition plates 20 are arranged in the shell 10 in a predetermined direction; a plurality of partition plates 20 are arranged in the shell 10, and are uniformly separated into a plurality of battery cell accommodating cavities 50 along the predetermined direction; which can ensure that the batteries are independent of each other, avoiding short circuit and other faults; at the same time, the material of the partition plate 20 generally requires good electrical insulation performance, and also needs to have certain heat insulation capacity to prevent heat conduction between the batteries. The predetermined direction is the length direction or the width direction of the shell 10, which can be set according to the actual use requirement.

[0045] A cover plate 30 is arranged at the upper end of the shell 10. The cover plate 30 arranged at the upper end of the shell 10 can play a closing and protection role. The cover plate 30 not only ensures that the inside of the shell 10 is not invaded by the external environment (such as water, dust, etc.), but also needs to consider the convenient disassembly and maintenance, and at the same time, the firmness needs to be ensured to avoid loosening or falling off during operation.

[0046] Further, at least one limiting plate 80 is arranged on the side of the cover plate 30 close to the battery cell accommodating cavity 50. By arranging the limiting plate 80, a good limiting and fixing effect can be achieved, and at the same time, a good assembly effect can be ensured.

[0047] Further, the cover plate 30 can also be provided with, but is not limited to, a ventilation hole or a heat dissipation hole to help the heat dissipation of the battery inside the shell, thereby achieving the effect of improving the service life of the battery.

[0048] Preferably, an integrated cover plate 30 is adopted, and the traditional top cover plastic part is cancelled, the top cover structure is simplified, and the utilization rate of the height space of the battery cell is improved.

[0049] A plurality of pole columns 40 are respectively embedded on the shell 10 in a predetermined order. A good assembly effect can be ensured, thereby ensuring the structural stability. At the same time, the embedded mode can achieve the effect of easy disassembly. The predetermined order can be the horizontal direction close to the side of the cover plate 30.

[0050] The shell 10, the plurality of partition plates 20 and the cover plate 30 form a plurality of battery cell accommodating cavities 50, and the two sides of the plurality of battery cell accommodating cavities 50 are respectively provided with the pole columns 40. The battery cell accommodating cavity 50 is a space for storing battery monomers, which is enclosed by the shell 10, the partition plate 20 and the cover plate 30, and can ensure the good assembly effect of the battery. At the same time, the pole columns 40 are respectively arranged on the two sides of the shell 10, which can ensure the good electrical connection effect.

[0051] The structure of the present application can effectively prevent short circuit between batteries, mutual friction or collision when the battery expands, and ensure the safety of the battery during the charging and discharging process. In addition, the design of the pole column 40 enables the battery pack to realize stable current transmission, thereby avoiding current fluctuation or failure caused by poor contact.

[0052] The arrangement of the partition plate 20 and the cover plate 30 can effectively separate the batteries, reduce the heat conduction between the batteries, and reduce the overall heat accumulation of the battery pack. In addition, the cover plate 30 can be designed with heat dissipation holes according to needs, increase air circulation, help the battery to dissipate heat, prolong the service life of the battery and avoid safety accidents caused by overheating

[0053] The plurality of pole posts 40 are embedded in the shell 10 in a preset order, which can be compatible with different specifications of batteries, facilitating the expansion and upgrading of the battery pack. By reasonably arranging the pole posts 40, the battery is easy to connect during assembly, improving the compatibility and flexibility of the battery pack.

[0054] The application can also solve the problems of traditional cell structures, including but not limited to unstable connection, low space utilization, high cost, etc., while improving the overall quality and reliability of the battery.

[0055] From the above description, it can be seen that the application achieves the following technical effects:

[0056] In the embodiments of the application, the plurality of cell accommodating cavities 50 are formed by the shell 10, the plurality of partition plates 20 and the cover plate 30, and the plurality of pole posts 40 are arranged on both sides of the plurality of cell accommodating cavities 50, respectively, achieving the purpose of improving the structural stability and space utilization, thereby realizing the technical effects of simplifying the structure and improving the production efficiency, and further solving the technical problems of the shell of the battery structure being formed by stamping, the internal cavity structure being single, the connection mode of the pole post 40 and the shell being unstable, and the welding process of the cell connecting piece 70 needing to be improved; and the cover plate 30 structure being mostly split type, containing a lower plastic part, leading to a complex pack structure, a complicated top cover structure, low space utilization, high production cost and low production efficiency.

[0057] Further, the shell 10, the plurality of partition plates 20 and the cover plate 30 are integrally injection molded. It can be understood that by adopting the integral injection molding mode, not only the error in the assembly process is reduced, but also the mechanical strength and overall sealing performance of the product are improved; the injection molding process also allows accurate control of the size, shape and tolerance of each part, ensuring the stability of the battery system.

[0058] The above structure has the following beneficial effects, including but not limited to:

[0059] Improving production efficiency: integrated molding reduces the assembly process of parts, reduces manufacturing cost and production cycle; improving structural stability: integrated design avoids the problems of loose connection or liquid leakage caused by multiple assembly.

[0060] Further, the shell 10 comprises: a horizontally arranged bottom plate 101, the periphery of the bottom plate 101 is surrounded by a vertical plate 102, and a plurality of partition plates 20 are arranged between the vertical plates 102. It can be understood that the bottom plate 101 is the basic part of the shell 10, and the horizontally arranged bottom plate 101 provides a stable support surface; the vertical plate 102: the vertical plate 102 around the periphery of the bottom plate 101 forms the boundary of the battery accommodating cavity; the partition plate 20: a plurality of partition plates 20 are arranged between the vertical plates 102, and each partition plate 20 separates a plurality of battery cell accommodating cavities 50.

[0061] Enhance structural rigidity: the combination of the vertical plate 102 and the bottom plate 101 effectively enhances the overall rigidity and stability of the shell 10, so that the battery pack can maintain structural integrity under vibration or impact; optimize space layout: by reasonably arranging the partition plates 20, the layout between the battery monomers is compact and not easily disturbed by the outside world.

[0062] As shown in Figure 7 , the top of the vertical plate 102 is provided with a step 1021, and the top of the plurality of partition plates 20 is provided with a limiting protrusion 60. It can be understood that it can ensure good assembly and limiting effect, so as to ensure the stability of the structure, and then improve the sealing performance of the structure, prevent external factors (such as moisture, dust) from entering the battery cavity, and improve the safety and durability of the battery.

[0063] As shown in Figure 8 , the cover plate 30 is arranged with a plurality of limiting cavities 301 near one side of the shell 10, and a plurality of limiting cavities 301 and the periphery of the cover plate 30 are provided with a distance 302, and the distance 302 and the adjacent limiting cavities 301 form a limiting groove 303, and the limiting groove 303 is engaged with the limiting protrusion 60. It can be understood that the limiting groove 303 is engaged with the limiting protrusion 60 on the cover plate 30, which ensures that the cover plate 30 is firmly connected with the shell 10; improve the sealing performance: the engagement design of the limiting cavity 301 and the limiting protrusion 60 ensures the sealing performance of the cover plate 30 and the shell 10, prevents the battery from being damp, polluted or external substances from entering; enhance the shock resistance: the limiting engagement provides stronger shock resistance to prevent the battery from loosening due to vibration or impact during transportation or use.

[0064] Further, the shell 10 is provided with an extension 103 near the pole 40. It can be understood that it can ensure good assembly effect, so as to avoid interference, and then ensure the stability of the structure.

[0065] Further, the extension part 103 is provided with a plurality of limiting grooves 1031 matched with the shape of the pole 40, and the pole 40 is arranged in the limiting grooves 1031. It can be understood that the extension part 103 is provided with a plurality of limiting grooves 1031 matched with the shape of the pole 40, and the pole 40 can be embedded in the limiting grooves 1031, so as to ensure the stable position of the pole 40 and prevent poor contact caused by movement or collision; stable connection: the stable fixing of the pole 40 can effectively prevent poor contact caused by external vibration, so as to avoid the performance decline or damage of the battery. Electrical connection reliability: the limiting grooves 1031 ensure the accuracy of the connection between the pole 40 and the battery pack, and improve the electrical stability and safety of the battery system.

[0066] As shown in Figures 5-6 The pole 40 is provided with a first welding surface 401 and a second welding surface 402. It can be understood that the good welding effect can be ensured, and the connection with the battery cell is facilitated; at the same time, the battery cell connecting piece 70 can facilitate the electrical connection between the single batteries of the battery pack.

[0067] It should be known that the ultrasonic welding or laser welding can be performed on the first welding surface 401 and the second welding surface 402, and the laser welding is preferably adopted on the first welding surface 401.

[0068] Further, the pole 40 is further provided with a battery cell connecting piece 70. It can be understood that the good electrical connection effect can be achieved.

[0069] The application also relates to a battery assembly comprising the novel shell structure.

[0070] It should be known that it also includes but is not limited to: a plurality of battery cells arranged in the battery cell accommodating cavities 50.

[0071] The preferred embodiments of the utility model are described in detail in combination with the drawings, but the utility model is not limited to the specific details in the above embodiments, and various equivalent transformations can be performed on the technical scheme of the utility model within the technical concept of the utility model, and these equivalent transformations all belong to the protection scope of the utility model.

Claims

1. A novel housing structure, characterized by, The application relates to a shell structure. The shell structure comprises a shell (10), a plurality of partition plates (20) arranged in a preset direction in the shell (10), a cover plate (30) arranged at the upper end of the shell (10), and a plurality of pole columns (40) arranged in a preset sequence in the shell (10). The shell (10), the plurality of partition plates (20) and the cover plate (30) form a plurality of battery cell accommodating cavities (50). The shell (10), the plurality of partition plates (20) and the cover plate (30) are integrally injection molded. The shell (10) comprises a horizontally arranged bottom plate (101), and vertical plates (102) are arranged around the periphery of the bottom plate (101). The top of the vertical plate (102) is provided with a step (1021), and the top of the step (1021) and the plurality of partition plates (20) is provided with a limiting protrusion (60).

2. The novel housing structure according to claim 1, characterized by The cover plate (30) is provided with a plurality of limiting cavities (301) arranged in a preset sequence on one side of the shell (10).

3. The novel housing structure according to claim 1, wherein The limiting cavities (301) and the outer periphery of the cover plate (30) are provided with a preset distance (302), and the distance (302) and the adjacent limiting cavities (301) form a limiting groove (303).

4. The novel housing structure according to claim 3, characterized by The shell (10) is provided with an extension (103) near the pole column (40).

5. The novel housing structure according to claim 4, characterized by The extension (103) is provided with a plurality of limiting grooves (1031) matching the shape of the pole column (40).

6. The novel housing structure according to claim 1, wherein The pole column (40) is provided with a first welding surface (401) and a second welding surface (402).

7. The novel housing structure according to claim 6, characterized by The pole column (40) is further provided with a battery cell connecting plate (70).

8. The novel housing structure according to claim 1, wherein The application further relates to a novel shell structure comprising any one of the shell structures in claims 1-9.

9. The novel housing structure according to claim 1, wherein ​ 10. A battery assembly characterized by, ​

Images