A multi-directional heat dissipation fin structure for power battery terminals

Abstract

This utility model discloses a multi-directional heat dissipation fin structure for a power battery terminal, including a mounting base and a heat dissipation fin assembly. The mounting base is a hollow cylindrical structure for fitting into the terminal. At least two heat dissipation fin assemblies are provided. These fin assemblies are evenly spaced from top to bottom on the outer wall of the bushing, creating horizontal gaps between adjacent fin assemblies for airflow. Each heat dissipation fin assembly consists of multiple fins, which are evenly distributed circumferentially on the outer wall of the mounting base, creating vertical gaps between adjacent fins for airflow. This increases airflow efficiency while maintaining sufficient heat dissipation area, effectively reducing the terminal temperature and ensuring battery performance and safety.

Description

Technical Field

[0001] This utility model relates to the technical field, specifically to a multi-directional heat dissipation fin structure for a power battery terminal. Background Technology

[0002] In fields such as new energy vehicles, power batteries are the core power source, and their performance and safety are of paramount importance. The terminals are key components connecting the power battery to the external circuit. During charging and discharging, current flowing through the positive terminal generates heat. If this heat cannot be dissipated in time, the terminal temperature will rise, affecting the battery's electrochemical performance and potentially even causing safety hazards.

[0003] Currently, existing power battery terminals typically employ a single cylindrical structure, relying primarily on the thermal conductivity of the terminal material itself and natural convection with the surrounding air for heat dissipation. However, this heat dissipation method has a limited heat dissipation area and low efficiency, failing to meet the heat dissipation requirements of high-power power batteries during high-current charging and discharging.

[0004] In existing technologies, fin arrays are often used for heat dissipation of columnar structures, with the fins mostly arranged vertically. For example, in the utility model patent with authorization announcement number CN 218957979 U, a battery terminal and a large-capacity battery, the fins of the heat dissipation structure allow air to flow only in the vertical direction, and air cannot flow effectively in the horizontal direction, resulting in poor air flow and affecting heat dissipation efficiency. Utility Model Content

[0005] The purpose of this utility model is to provide a multi-directional heat dissipation fin structure for power battery terminals, which has multiple horizontally arranged heat dissipation fin groups to increase airflow and solve the technical problems existing in the prior art.

[0006] To solve the above-mentioned technical problems, this utility model specifically provides the following technical solution:

[0007] A multi-directional heat dissipation fin structure for power battery terminals, comprising:

[0008] The mounting base is a hollow cylindrical structure, and the pole is sleeved on the mounting base. There are at least two sets of heat dissipation fins. All the heat dissipation fins are arranged at equal intervals from top to bottom on the outer wall of the mounting base. There is a gap between each pair of adjacent heat dissipation fins to allow air to flow in the horizontal direction. Each set of heat dissipation fins consists of multiple fins distributed around the circumference of the mounting base. The fins are connected to the outer wall of the mounting base, and there is a gap between adjacent fins to allow air to flow in the vertical direction.

[0009] Furthermore, the fins are inclined upwards relative to the horizontal plane.

[0010] Furthermore, the fins have a fan-shaped structure and multiple airflow holes to increase airflow above and below the fins.

[0011] Furthermore, the inner wall of the internal cavity of the mounting base has a first guide groove in the vertical direction.

[0012] Furthermore, the bottom of the mounting base is provided with a first air inlet that communicates with the first guide groove. The first air inlet penetrates the mounting base, so that the bottom of the first guide groove can communicate with the outside of the mounting base.

[0013] Furthermore, the mounting base is rotatably connected to the pole post, and the inner wall of the internal cavity of the mounting base has a second guide groove spirally distributed around the axis of the cavity. The outer wall of the mounting base is provided with a second air inlet that can communicate with the second guide groove. The rotation of the mounting base accelerates the airflow in the second guide groove and the airflow at the fin.

[0014] Furthermore, the mounting base is driven to rotate by an external drive device.

[0015] Compared with the prior art, this utility model has the following advantages:

[0016] The multi-directional heat dissipation fin structure adopted in this invention uses multiple sets of horizontally radially distributed fins to maintain airflow in both the horizontal and vertical directions. While ensuring the heat dissipation area, it increases the efficiency of airflow, thereby effectively reducing the terminal temperature and ensuring the performance and safety of the battery. Attached Figure Description

[0017] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0018] Figure 1 A schematic diagram of a multi-directional heat dissipation fin structure for a power battery terminal;

[0019] Figure 2 This is a schematic diagram of one embodiment;

[0020] Figure 3 for Figure 2 A structural schematic diagram from another perspective of the illustrated embodiment;

[0021] Figure 4This is a schematic diagram of another embodiment;

[0022] Figure 5 for Figure 4 The illustrated embodiment is a structural diagram in its usage state.

[0023] The labels in the diagram represent the following:

[0024] 1-Mounting base, 2-Heat dissipation fin assembly, 3-Fin, 4-Guide hole, 5-First guide groove, 6-First air inlet, 7-Second guide groove, 8-Second air inlet, 9-Passive gear, 10-Drive gear, 11-Motor, 12-Pole post, 13-Power battery. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] like Figure 1 As shown, this utility model provides an embodiment of a multi-directional heat dissipation fin structure for a power battery terminal, including a mounting base 1 and a heat dissipation fin group 2 disposed on the mounting base 1.

[0027] The mounting base 1 is a hollow cylindrical structure used to fit onto the terminal post 12 of the power battery 13; it is made of a material with high thermal conductivity, preferably aluminum alloy.

[0028] The heat dissipation fin group 2 is provided with at least two groups; all heat dissipation fin groups 2 are arranged at equal intervals from top to bottom on the outer wall of the bushing, so that there are gaps between adjacent heat dissipation fin groups 2 for air to flow in the horizontal direction.

[0029] Furthermore, the heat dissipation fin assembly 2 is composed of multiple fins 3, which are arranged on the outer wall of the mounting base 1 and distributed around the circumference of the mounting base 1, so that there are gaps between adjacent fins 3 to allow air to flow in the vertical direction.

[0030] This allows for airflow in both the vertical and horizontal directions of the entire heat dissipation fin assembly 2, thereby improving heat dissipation efficiency.

[0031] Furthermore, multiple air guide holes 4 are opened on the fin 3, which form a channel for air circulation above and below the fin 3, breaking through the bottleneck of limited air flow in the traditional fin 3 structure, so as to increase the air flow above and below the fin 3.

[0032] In this embodiment, the fins 3 are inclined upward relative to the horizontal plane to form an upward airflow channel, which facilitates the rapid discharge of airflow after heat exchange with the fins 3 along the airflow channel, thereby accelerating airflow and improving heat dissipation efficiency.

[0033] In this embodiment, the fin 3 has a fan-shaped structure, and the unique contour of the fan shape has a good guiding effect on airflow. When air flows over the fin 3, the fan-shaped structure allows the air to flow more smoothly along the surface of the fin 3, reducing airflow resistance and turbulence.

[0034] Especially when multiple fan-shaped fins 3 are combined to form a radial pattern, they can guide the air to form a similar radial flow path, so that the air can be evenly covered on each fin 3, enhance air convection, and ensure that all parts of the fin 3 can be effectively cooled, thereby improving heat dissipation efficiency.

[0035] In this embodiment, to further improve heat dissipation efficiency, a first embodiment is also provided, such as... Figure 2 and Figure 3 As shown:

[0036] The inner wall of the cavity of the mounting base 1 has a first guide groove 5 in the vertical direction, which allows the mounting base 1 to dissipate heat through the air in the first guide groove 5 while exchanging heat with the pole post 12, thereby improving the heat dissipation efficiency.

[0037] Furthermore, the bottom of the mounting base 1 is provided with a first air inlet 6 that communicates with the first air guide groove 5. The first air inlet 6 penetrates the mounting base 1, so that the bottom of the first air guide groove 5 can communicate with the outside of the mounting base 1, thereby enhancing the air flow rate inside the first air guide groove 5 and improving heat dissipation efficiency.

[0038] In this embodiment, to further improve heat dissipation efficiency, a second embodiment is also provided, such as... Figure 4 As shown:

[0039] There is a certain gap between the inner diameter of the mounting base 1 and the pole post 12, so that the mounting base 1 is rotatably connected to the pole post 12. The inner side wall of the internal cavity of the mounting base 1 has a second guide groove 7 spirally distributed around the cavity axis. The outer side wall of the mounting base 1 has a second air inlet 8 that can communicate with the second guide groove 7, so that the airflow outside the mounting base 1 enters the interior of the second guide groove 7 and flows upward after being heated, thereby driving the entire mounting base 1 to rotate.

[0040] It is preferable to set multiple second guide channels 7.

[0041] The rotation of mounting base 1 accelerates the airflow in the second airflow channel 7 and the airflow at the fins 3; at the same time, the entire heat dissipation fin assembly 2 also rotates synchronously, acting like a fan, accelerating the airflow at the heat dissipation fin assembly 2, and improving the heat dissipation effect.

[0042] Furthermore, such as Figure 5 As shown, in order to enable the mounting base 1 to rotate stably, the mounting base 1 is driven to rotate by an external drive device.

[0043] Specifically, the bottom of the mounting base 1 is provided with a passive gear 9, and the outside of the power battery 13 housing is provided with a micro motor 11. The drive shaft of the micro motor 11 is provided with a drive gear 10. The drive gear 10 and the passive gear 9 mesh, and the micro motor 11 actively drives the entire heat sink 3 structure to rotate.

[0044] The above embodiments are merely exemplary embodiments of this application and are not intended to limit this application. The scope of protection of this application is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to this application within its substance and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of this application.

Claims

1. A multi-directional heat dissipation fin structure of a power battery pole, characterized in that, include: Mounting base (1) is configured as a hollow cylindrical structure, and pole post (12) is sleeved on the mounting base (1); At least two heat dissipation fin groups (2) are provided; all the heat dissipation fin groups (2) are arranged at equal intervals from top to bottom on the outer wall of the mounting base (1), and a gap is provided between each pair of adjacent heat dissipation fin groups (2) to allow air to flow in the horizontal direction; each heat dissipation fin group (2) is formed by multiple fins (3) distributed around the circumference of the mounting base (1), and the fins (3) are connected to the outer wall of the mounting base (1), and a gap is provided between adjacent fins (3) to allow air to flow in the vertical direction.

2. The multi-directional heat dissipation fin structure of the power battery terminal according to claim 1, characterized in that, The fin (3) is inclined upward relative to the horizontal plane.

3. The multi-directional heat dissipation fin structure of the power battery terminal according to claim 2, characterized in that, The fin (3) has a fan-shaped structure and multiple air guide holes (4) are opened on the fin (3) so that air can circulate above and below the fin (3).

4. The multi-directional heat dissipation fin structure of the power battery terminal according to claim 3, characterized in that... The inner wall of the internal cavity of the mounting base (1) has a first guide groove (5) in the vertical direction.

5. The multi-directional heat dissipation fin structure of the power battery terminal according to claim 4, characterized in that, The bottom of the outer side wall of the mounting base (1) is provided with a first air inlet (6) that communicates with the first guide groove (5). The first air inlet (6) penetrates the mounting base (1) so that the bottom of the first guide groove (5) can communicate with the outside of the mounting base (1).

6. The multi-directional heat dissipation fin structure of the power battery terminal according to claim 3, characterized in that, The mounting base (1) is rotatably connected to the pole post (12). The inner wall of the cavity of the mounting base (1) is provided with a second guide groove (7) spirally distributed around the axis of the cavity. The bottom of the outer wall of the mounting base (1) is provided with a second air inlet (8) connected to the second guide groove (7). The upward flow of gas in the second guide groove (7) enables the mounting base (1) to rotate.

7. The multi-directional heat dissipation fin structure of the power battery terminal according to claim 6, characterized in that, The mounting base (1) is driven to rotate by an external drive device.

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