New energy lithium battery structure

Abstract

This utility model provides a new energy lithium battery structure, belonging to the field of new energy. It includes a casing, inside which a separation and fixing component for fixing battery cells is installed. Through this separation and fixing component, the structure applies independent elastic constraints to each battery cell, forming stable and uniform heat dissipation gaps between the cells. These gaps constitute airflow channels, allowing air to penetrate deep into the gaps and efficiently remove accumulated heat. The independent constraint on the battery cells causes them to compress the gaps due to thermal expansion, ensuring the unobstructed flow of airflow and achieving direct and efficient heat dissipation from the cell surface to the airflow space. The heat dissipation component draws in cooling airflow from the bottom of the casing, disperses the airflow, efficiently distributes it, and transforms it into multiple high-speed airflows, finally spraying them from specific locations in multiple directions to cover the surface of the battery cells, achieving directional heat dissipation of the battery cells and further enhancing the heat dissipation effect of the separation and fixing component.

Description

Technical Field

[0001] This utility model relates to the field of new energy, specifically to a new energy lithium battery structure. Background Technology

[0002] New energy vehicles refer to automobiles that use unconventional vehicle fuels as a power source and integrate advanced technologies in vehicle power control and drive, forming vehicles with advanced technical principles, new technologies, and new structures. With the development of modern society, the number of new energy vehicles using batteries as power sources is increasing. When using new energy lithium batteries, in order to avoid the accumulation of heat generated by the new energy lithium batteries, heat dissipation plates are often used to dissipate heat from the new energy lithium batteries.

[0003] A search revealed that Chinese patent CN220627921U discloses "a heat dissipation plate for a new energy lithium battery, comprising a heat-conducting plate, wherein heat dissipation ribs are evenly spaced on the upper middle part of the heat-conducting plate, and a V-shaped groove is formed in the upper middle part of the heat dissipation ribs. Connecting pipes are fixed on the upper side of the heat-conducting plate on both sides of the heat dissipation ribs, one end of the connecting pipe is connected to a diverter pipe, and the other end of the connecting pipe is connected to a manifold pipe. This utility model, through the design of the diverter pipe, manifold pipe, and connecting pipe, provides a smooth flow channel for the heat dissipation plate of the new energy lithium battery during use, avoiding the disadvantage of slow flow of circulating water due to large resistance. At the same time, by forming a V-shaped groove on the heat dissipation ribs, the heat dissipation area of ​​the heat dissipation ribs is effectively increased, facilitating the rapid dissipation of heat on the heat dissipation ribs, thereby further improving the heat dissipation efficiency of the new energy lithium battery heat dissipation plate." However, the following defects still exist:

[0004] This utility model relies solely on a water-cooled plate for heat dissipation on one side, and the pure heat dissipation structure lacks protective functions. It cannot effectively dissipate heat from the battery when hot air accumulates on top of the battery, thus posing a risk of excessive battery heat. Furthermore, the vibration, displacement, and impact deformation of the battery during vehicle operation may also damage the battery. Utility Model Content

[0005] The purpose of this utility model is to address the problem that current technologies rely solely on water-cooled plates for single-sided heat dissipation, and the pure heat dissipation structure lacks protective functions. This makes it impossible to dissipate heat from the battery when hot air accumulates on the top of the battery, thus causing the risk of excessive battery heat. Furthermore, the vibration, displacement, and impact deformation of the battery during vehicle operation may also lead to battery damage.

[0006] To achieve the above-mentioned objectives, this utility model provides the following technical solution:

[0007] The present invention is as follows: a new energy lithium battery structure, including a shell, wherein a separation and fixing component for fixing the battery cell is provided inside the shell, and a heat dissipation component for heat dissipation of the battery cell is provided on the inner top of the separation and fixing component.

[0008] The separation and fixing assembly includes a base that is snapped onto the bottom of the outer shell. A restraining ring is provided on the top of the base. A limiting block is provided on the inner side wall of the restraining ring. A deformation groove is provided on one side of the limiting block. An extension block is provided on the top of the limiting block. The top of the extension block extends upward by 3cm. An inner plate is provided on the top of the base. The inner plate is snapped onto the inner side wall of the outer shell.

[0009] As a preferred technical solution of this utility model, the heat dissipation component includes a ventilation plate snapped onto the top of the base, three expansion plates are respectively provided on both sides of the ventilation plate, ventilation holes are opened on both sides of the expansion plates, the expansion plates and the ventilation plates are internally connected, a fan is bolted to the bottom of the ventilation plate, and the bottom of the fan extends through to the bottom of the base.

[0010] As a preferred technical solution of this utility model, a ventilation hole is provided on the side of the outer shell, a baffle plate is provided on one side of the ventilation hole, one end of the ventilation hole is inclined downward, one end of the baffle plate is inclined downward, and the ventilation hole is located above the inner layer plate.

[0011] As a preferred technical solution of this utility model, the bottom of the base is provided with an installation plate, the interior of the installation plate is provided with a buffer cavity, the interior of the buffer cavity is provided with a memory metal plate, the bottom of the memory metal plate is bonded with a buffer rubber pad, the bottom of the buffer rubber pad is provided with a through groove, a plurality of the through grooves are evenly distributed on the bottom of the buffer rubber pad, and the ground of the buffer rubber pad and the bottom of the installation plate are at the same level.

[0012] As a preferred technical solution of this utility model, a filter screen for filtering dust is bolted inside the ventilation hole. The filter screen has a mesh size of 40 and one end of the filter screen extends to the inner side wall of the outer shell.

[0013] As a preferred technical solution of this utility model, a handle is provided on the top of the outer shell, and a grip groove is provided inside the handle. The grip groove is hollowed out to the other side of the outer shell, and the inner sidewall of the grip groove is provided with anti-slip micro-particles.

[0014] As a preferred technical solution of this utility model, the mounting plate has mounting grooves at its four corners, and bolt holes for installing external bolts are provided inside the mounting grooves.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. By setting up a separate fixing component, the component applies an independent elastic constraint to each battery cell, forming a stable and uniform heat dissipation gap between the cells. This increases the effective heat dissipation area of ​​the cells and reconstructs the heat dissipation path. These gaps form a natural longitudinal airflow channel, allowing cooling airflow to flow freely around all surfaces of the cells. Combined with the airflow provided by the bottom air duct, high-speed air penetrates deep into the gaps, efficiently carrying away the accumulated heat. At the same time, the independent constraint of the cells prevents them from squeezing the gaps due to thermal expansion, ensuring the unobstructed airflow channel. This fundamentally eliminates the problem of localized heat accumulation that easily occurs when multiple cells are densely arranged, thereby achieving a direct and efficient heat dissipation effect from the cell surface to the airflow space.

[0017] 2. Through the heat dissipation components, it draws in cooling airflow from the bottom of the casing, disperses the airflow, efficiently distributes and transforms it into multiple high-speed airflows, and finally sprays them from specific locations to cover the surface of the battery cell from multiple directions, achieving directional heat dissipation of the battery cell and assisting in the separation and fixing components to increase the heat dissipation effect. Attached Figure Description

[0018] Figure 1 A schematic diagram of the structure of the new energy lithium battery provided by this utility model;

[0019] Figure 2 A structural schematic diagram of the left-side perspective three-dimensional cross-section of the new energy lithium battery structure provided by this utility model;

[0020] Figure 3 A schematic diagram of the base, inner plate, and buffer cavity of the new energy lithium battery structure provided by this utility model;

[0021] Figure 4 A top view schematic diagram of the heat dissipation component structure of the new energy lithium battery structure provided by this utility model;

[0022] Figure 5 The new energy lithium battery structure provided by this utility model Figure 2 Schematic diagram of the structure at point A;

[0023] Figure 6 The new energy lithium battery structure provided by this utility model Figure 2 Schematic diagram of the structure at point B;

[0024] Figure 7 A schematic diagram of the structure of the base, restraint ring, limiting block and deformation groove of the new energy lithium battery structure provided by this utility model.

[0025] The diagram shows: 1. Outer shell; 2. Separation and fixing assembly; 3. Heat dissipation assembly; 4. Ventilation hole; 5. Baffle plate; 6. Mounting plate; 7. Buffer chamber; 8. Memory metal plate; 9. Buffer rubber pad; 10. Through groove; 11. Filter screen; 12. Grip groove; 13. Mounting groove; 14. Bolt hole; 15. Handle; 201. Base; 202. Restraint ring; 203. Limiting block; 204. Deformation groove; 205. Extension block; 206. Inner layer plate; 301. Ventilation plate; 302. Expansion plate; 303. Vent hole; 304. Fan. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0027] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0028] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0029] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0030] like Figure 1 As shown, this embodiment proposes a new energy lithium battery structure, including a shell 1, a separation and fixing component 2 for fixing the battery cell is provided inside the shell 1, and a heat dissipation component 3 for heat dissipation of the battery cell is provided on the inner top of the separation and fixing component 2.

[0031] like Figure 3 , Figure 4 and Figure 7As shown, the separation and fixing assembly 2 includes a base 201 that is snapped onto the bottom of the outer casing 1. A restraining ring 202 is provided on the top of the base 201. A limiting block 203 is provided on the inner wall of the restraining ring 202. A deformation groove 204 is provided on one side of the limiting block 203 to hold the battery cell in place, thereby increasing the heat dissipation area and reducing the possibility of heat accumulation. An extension block 205 is provided on the top of the limiting block 203, with its top end extending upwards by 3cm. An inner layer plate 206 is provided on the top of the base 201 and is snapped onto the inner wall of the outer casing 1. 201 is fixed to the bottom of the outer shell 1 by snap-fit, forming a basic support; the binding ring 202 at the top of the base 201 with the limiting block 203 with the deformation groove 204 binds the bottom of the cell, while the extension block 205 at the top of the limiting block 203 extends upward by 3cm to provide auxiliary limiting for the cell on the outside; the inner layer plate 206 is snapped to the inner wall of the outer shell 1 to form a second protective layer, which together with the base 201 forms a two-layer mutually auxiliary protective effect, and the cell is set separately by the binding ring 202, which increases the heat dissipation area of ​​the cell and prevents heat from accumulating in a certain part of the battery.

[0032] like Figure 4 As shown, the heat dissipation assembly 3 includes a ventilation plate 301 snapped onto the top of the base 201. Three expansion plates 302 are respectively provided on both sides of the ventilation plate 301. Ventilation holes 303 are opened on both sides of the expansion plates 302. The expansion plates 302 and the ventilation plate 301 are internally connected. A fan 304 is bolted to the bottom of the ventilation plate 301. The bottom of the fan 304 extends to the bottom of the base 201. The ventilation plate 301 and the three expansion plates 302 are internally connected to form a heat dissipation system. The fan 304 is embedded under the base 201 to drive airflow: cold air is drawn in from the bottom of the base 201, diverted to the expansion plates 302 through the ventilation plate 301, and finally sprayed onto the cell wall at high speed from the ventilation holes 303 on both sides. The expansion plates 302 divide the airflow into multiple branches, increasing the heat exchange area and further preventing heat accumulation inside the battery.

[0033] like Figure 5 As shown, a ventilation hole 4 is provided on the side of the outer shell 1, and a baffle plate 5 is provided on one side of the ventilation hole 4. One end of the ventilation hole 4 is inclined downward, and one end of the baffle plate 5 is inclined downward. The ventilation hole 4 is located above the inner layer plate 206. The inclined ventilation hole 4 and the baffle plate 5 at the same angle form a water-proof structure: hot air is guided by gravity to be quickly discharged from above the inner layer plate 206.

[0034] like Figure 3 and Figure 6As shown, a mounting plate 6 is provided at the bottom of the base 201. A buffer cavity 7 is provided inside the mounting plate 6. A memory metal plate 8 is provided inside the buffer cavity 7. A buffer rubber pad 9 is bonded to the bottom of the memory metal plate 8. A through groove 10 is opened at the bottom of the buffer rubber pad 9. Multiple through grooves 10 are evenly distributed at the bottom of the buffer rubber pad 9. The ground of the buffer rubber pad 9 and the bottom of the mounting plate 6 are at the same level. The memory metal plate 8 elastically buffers vibration and impact at room temperature. When compressed, the through grooves 10 at the bottom of the buffer rubber pad 9 expel air and when rebounding, they draw in air to form an air cushion effect. The two are superimposed to form a dual-mode buffer layer, and the through grooves 10 are evenly distributed to avoid stress concentration.

[0035] like Figure 5 As shown, a filter screen 11 for filtering dust is bolted inside the ventilation hole 4. The filter screen 11 has a mesh size of 40. One end of the filter screen 11 extends to the inner wall of the outer casing 1. The 40-mesh filter screen 11 is bolted to the inside of the ventilation hole 4 to directly intercept dust particles >0.5mm. The edge of the filter screen extends to the inner wall of the outer casing 1 to ensure that the airflow passes smoothly without turbulence and to minimize the impact on wind resistance during use.

[0036] like Figure 1 As shown, a handle 15 is provided on the top of the outer casing 1. A grip groove 12 is provided inside the handle 15. The grip groove 12 is hollowed out to the other side of the outer casing 1. The inner side wall of the grip groove 12 is provided with anti-slip micro-particles. The grip groove 12 of the handle 15 extends through the top of the outer casing 1. The micro-particles in the groove increase the surface friction, making it easier to handle. The grip groove 12 makes it convenient for workers to hold the battery when handling it.

[0037] like Figure 1 and Figure 2 As shown, mounting slots 13 are provided at the four corners of the mounting plate 6. Bolt holes 14 for installing external bolts are provided inside the mounting slots 13. The bolts are installed in the area with the reserved bolt holes. During installation, the bolt heads are recessed into the bolt holes 14, while avoiding installation interference caused by the bolts protruding, so that the base 201 can be fixed.

[0038] Specifically, in use, the structure of this new energy lithium battery is as follows: the base 201 is fixed to the bottom of the outer casing 1 by a snap-fit ​​method, forming a basic support structure; the binding ring 202 at its top uses the limiting block 203 with the deformation groove 204 on the inner side to elastically constrain the position of the battery cell, while the extension block 205 at the top of the limiting block 203 extends upward to abut against the upper surface of the battery cell to achieve axial limiting. At this time, the battery cell is set individually, and the space between multiple battery cells allows air circulation (see...). Figure 4 and Figure 6 The increased heat dissipation area prevents heat buildup. The inner plate 206 is snapped into the inner wall of the outer shell 1 to form a second protective layer, which, together with the base 201, constitutes a two-stage vibration-resistant frame (see...). Figure 3The ventilation plate 301 is snapped onto the top of the base 201. Its two side expansion plates 302 and internally connected ventilation holes 303 form a tree-like air duct. The bottom fan 304 drives airflow through the air duct to spray onto the surface of the battery cell for active heat dissipation (see...). Figure 4 The inclined ventilation holes 4 on the side of the outer shell 1, together with the baffle plate 5 at the same angle, form a waterproof barrier. The internally bolted filter screen 11 intercepts dust. The ventilation holes 4 are located above the inner layer plate 206 to ensure the directional discharge of hot air. The mounting plate 6 at the bottom of the base 201 contains a memory metal plate 8 and a cushioning rubber pad 9 (see...). Figure 6 The through groove 10 absorbs impact energy through deformation; the mounting grooves 13 at the four corners of the mounting plate 6 have built-in bolt holes 14 to achieve edge suspension installation, dispersing mechanical stress; the inner side of the through handle 15 at the top of the outer shell 1 is provided with anti-slip particles (see...). Figure 2 It provides a stable grip function.

[0039] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A new energy lithium battery structure, comprising a casing (1), characterized in that, The outer casing (1) is provided with a separation and fixing assembly (2) for fixing the battery cell, and the inner top of the separation and fixing assembly (2) is provided with a heat dissipation assembly (3) for dissipating heat from the battery cell. The separation and fixing assembly (2) includes a base (201) that is snapped into the bottom of the outer shell (1). A restraint ring (202) is provided on the top of the base (201). A limit block (203) is provided on the inner side wall of the restraint ring (202). A deformation groove (204) is provided on one side of the limit block (203). An extension block (205) is provided on the top of the limit block (203). The top of the extension block (205) extends upward by 3cm. An inner plate (206) is provided on the top of the base (201). The inner plate (206) is snapped into the inner side wall of the outer shell (1).

2. The new energy lithium battery structure according to claim 1, characterized in that, The heat dissipation assembly (3) includes a ventilation plate (301) snapped onto the top of the base (201). Three expansion plates (302) are respectively provided on both sides of the ventilation plate (301). Ventilation holes (303) are opened on both sides of the expansion plates (302). The expansion plates (302) and the ventilation plate (301) are connected internally. A fan (304) is bolted to the bottom of the ventilation plate (301). The bottom of the fan (304) extends through to the bottom of the base (201).

3. The new energy lithium battery structure according to claim 1, characterized in that, Ventilation holes (4) are provided on the side of the outer shell (1), and a baffle plate (5) is provided on one side of the ventilation hole (4). One end of the ventilation hole (4) is inclined downward, and one end of the baffle plate (5) is inclined downward. The ventilation hole (4) is located above the inner layer plate (206).

4. The new energy lithium battery structure according to claim 1, characterized in that, The base (201) has a mounting plate (6) at its bottom. The mounting plate (6) has a buffer cavity (7) inside. The buffer cavity (7) has a memory metal plate (8) inside. A buffer rubber pad (9) is bonded to the bottom of the memory metal plate (8). The bottom of the buffer rubber pad (9) has a through groove (10). Multiple through grooves (10) are evenly distributed on the bottom of the buffer rubber pad (9). The ground of the buffer rubber pad (9) is at the same level as the bottom of the mounting plate (6).

5. The new energy lithium battery structure according to claim 3, characterized in that, A filter screen (11) for filtering dust is bolted inside the ventilation hole (4). The filter screen (11) has a mesh size of 40 and one end of the filter screen (11) extends to the inner wall of the outer shell (1).

6. The new energy lithium battery structure according to claim 1, characterized in that, The top of the outer shell (1) is provided with a handle (15), and the inside of the handle (15) is provided with a grip groove (12). The grip groove (12) is hollowed out to the other side of the outer shell (1), and the inner sidewall of the grip groove (12) is provided with anti-slip micro-particles.

7. The new energy lithium battery structure according to claim 4, characterized in that, The mounting plate (6) has mounting grooves (13) at its four corners, and bolt holes (14) for installing external bolts are provided inside the mounting grooves (13).

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