A high-airtight battery top cover with heat dissipation channels

Abstract

This utility model relates to the field of battery cover plates, and more particularly to a high-airtight battery top cover plate with heat dissipation channels. It includes a heat insulation plate, a base plate, a first channel, and a second channel. The base plate is fixed to the lower end of the heat insulation plate. The lower surface of the base plate has a first channel with an arc-shaped distribution in the center, and second channels with an arc-shaped distribution on both sides of the first channel. The heat insulation plate has a third channel arranged in a linear array in the center. This device can achieve differentiated pipe heat dissipation effects by utilizing the arc-shaped first and second channels. Combined with the sealing treatment of the heat insulation plate, it achieves a highly efficient sealed heat dissipation battery cover, solving the problem of poor heat dissipation efficiency in existing battery cover plates, which leads to deformation due to excessive temperature and affects the sealing effect of the battery surface.

Description

Technical Field

[0001] This utility model relates to the field of battery cover plates, and in particular to a highly airtight battery top cover plate with heat dissipation channels. Background Technology

[0002] The battery cover is a structural component installed on top of the battery pack, primarily used to seal the battery interior, secure electrode connections, and aid in heat dissipation. A well-designed battery cover effectively reduces battery operating temperature, preventing performance degradation, shortened lifespan, or thermal runaway risks caused by overheating. Good heat dissipation design improves battery charging and discharging efficiency, reduces energy loss, and enhances safety, preventing expansion, leakage, or even fire and explosion caused by high temperatures. Furthermore, optimized heat dissipation maintains a balanced battery pack temperature, preventing localized overheating and extending overall lifespan. This is suitable for high-power batteries or high-energy-density energy storage systems and is crucial for the stable operation of electric vehicles, energy storage devices, and other applications.

[0003] A search revealed patent publication number CN217544764U, which discloses a battery cover and a battery. The battery cover includes a cover body, a lower plastic layer, and an adapter plate. A buffer layer is provided between the adapter plate and the lower plastic layer. During welding of the cell tabs to the adapter plate, the buffer layer can withstand the pressure of the welding process, preventing the lower plastic layer from cracking. Furthermore, the presence of the buffer layer prevents the upper surface of the adapter plate from contacting the lower surface of the lower plastic layer, effectively reducing heat transfer to the lower plastic layer during welding and lowering the risk of the lower plastic layer melting. This ensures the sealing of the battery cover, prevents the battery from becoming charged, and improves battery safety. Batteries with the aforementioned battery cover can avoid the risks of the lower plastic layer being crushed or melted, thus improving battery safety.

[0004] While existing technologies can achieve a certain sealing effect on battery covers, they suffer from poor heat dissipation efficiency, leading to deformation due to excessive temperature and affecting the sealing effect on the battery surface. In view of this, we propose a high-airtight battery top cover with heat dissipation channels, which solves the above problems. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a highly airtight battery top cover with a heat dissipation channel.

[0006] The technical solution of this utility model is as follows: a high airtight battery top cover with heat dissipation channels, including a heat insulation plate, a bottom plate, channel one and channel two. The bottom plate is fixed to the lower end of the heat insulation plate. Channel one with an arc-shaped distribution is provided in the middle of the lower surface of the bottom plate. Channel two with an arc-shaped distribution is provided on both sides of channel one. Channel three with a linear array distribution is provided in the middle of the heat insulation plate.

[0007] When in use, this device uses screws to fix the heat insulation plate and the base plate to the battery surface, thus securing the battery surface. When the battery surface heats up, the heat is fully absorbed by the lower surfaces of channels one and two, and then discharged from both sides through channels one and two. Excess heat is transferred to the inside of the heat insulation plate and is also discharged from both sides of channel three. The heat insulation plate provides a certain degree of sealing. This device can achieve a multi-channel battery cover installation effect, with functions of sealing and fixing as well as efficient heat dissipation, making it highly practical.

[0008] Preferably, the base plate and the heat insulation plate have through holes in the middle. The through holes in the middle of the base plate and the heat insulation plate facilitate the direct discharge of gas or heat inside the battery, enhance the heat dissipation efficiency, and provide convenience for battery installation and maintenance.

[0009] Preferably, the base plate and the heat insulation plate are provided with positioning holes at the four corners. The positioning hole design at the four corners of the base plate and the heat insulation plate makes the installation process more precise, improves the assembly efficiency, and ensures a stable connection between the battery cover and the battery body, reducing the problem of poor sealing caused by misalignment.

[0010] Preferably, the upper surface of the heat insulation plate is provided with symmetrically designed contacts. The symmetrical contact design on the upper surface of the heat insulation plate facilitates the electrical connection of the battery and improves the ease of installation. At the same time, the symmetrical layout of the contacts ensures the uniformity of current distribution and reduces the risk of local overheating.

[0011] Preferably, the heat insulation plate and the base plate are provided with a through-type guide plate. The lower surface of the guide plate is exposed on the lower surface of the base plate. The guide plate is electrically connected to the contact. The guide plate passes through the heat insulation plate and the base plate and is electrically connected to the contact, which makes the current transmission more stable. At the same time, the guide plate is exposed on the lower surface of the base plate, which enhances the heat dissipation capacity.

[0012] Preferably, the bottom plate has an arc-shaped groove 1 at the center of its lower end, and the channel 1 is distributed on the surface of the arc-shaped groove 1. The depth of the arc-shaped groove 1 is greater than that of the arc-shaped groove 2. The design of the arc-shaped groove 1 at the lower end of the bottom plate, together with the distribution of the channel 1, increases the heat dissipation area. The greater depth of the arc-shaped groove 1 than the arc-shaped groove 2 allows heat to diffuse more efficiently from the central area to the outside, thus improving the overall heat dissipation effect.

[0013] Preferably, the depth of the second arc groove is less than the depth of the first arc groove, and the number of the second channel inside the second arc groove is less than the number of the first channel inside the first arc groove. The shallower depth of the second arc groove and the smaller number of the second channels allow heat to be discharged more concentratedly from the first channel, while avoiding excessive heat dissipation channels from affecting the structural strength. This ensures heat dissipation efficiency while maintaining the mechanical stability of the base plate.

[0014] Compared with existing technologies, the advantages of this utility model are:

[0015] I. This utility model achieves efficient heat dissipation and sealed fixation of the battery through the fixed connection between the heat insulation plate and the base plate and the multi-channel heat dissipation design (channel one, channel two, and channel three). The arc-shaped distribution of channels one and two can quickly guide heat to be discharged to both sides, while the linear array of channels three further enhances the heat dissipation efficiency. At the same time, the heat insulation plate provides good sealing performance, effectively preventing external contaminants from entering.

[0016] II. Based on the first beneficial effect, this device achieves efficient heat dissipation, robust sealing, and convenient installation of the battery through multi-layered heat dissipation channels (channel one, channel two, and channel three), optimized structural design (arc-shaped grooves, through holes, and positioning holes), and optimized electrical connections (contacts and guide plates). The arc-shaped heat dissipation channels enhance heat absorption and dissipation efficiency, while the coordinated design of the heat insulation plate and base plate ensures good sealing and structural stability. Furthermore, the optimized electrical connections of the contacts and guide plates improve current transmission, further enhancing battery safety and lifespan. The overall design balances heat dissipation, sealing, electrical performance, and ease of installation, making it highly practical.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0019] Figure 2 This is a bottom view of the present invention;

[0020] Figure 3 This is a side view of the present invention;

[0021] Figure 4 For the present utility model Figure 2 Enlarged schematic diagram of structure A in the middle.

[0022] Figure label:

[0023] 1. Insulation board; 2. Base plate; 3. Channel 1; 4. Channel 2; 5. Channel 3; 6. Through hole; 7. Contact; 8. Positioning hole; 9. Guide plate; 10. Arc groove 2; 11. Arc groove 1. Detailed Implementation

[0024] To make the above-mentioned objectives, features and advantages of this utility model more readily understood, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0028] Example 1

[0029] Please see Figures 1-4 As shown, this embodiment is a high-airtight battery top cover with heat dissipation channels, including a heat insulation plate 1, a bottom plate 2, a first channel 3 and a second channel 4. The bottom plate 2 is fixed to the lower end of the heat insulation plate 1. The bottom surface of the bottom plate 2 is provided with a first channel 3 with an arc-shaped distribution design in the middle. The second channel 4 with an arc-shaped distribution design is provided on both sides of the first channel 3. The heat insulation plate 1 is provided with a third channel 5 with a linear array distribution in the middle.

[0030] When in use, the heat insulation plate 1 and the base plate 2 are fixed to the battery surface with screws, thus securing the battery surface. When the battery surface heats up, the heat is fully absorbed by the lower surfaces of channels 1 3 and 2 4, and then discharged from both sides through channels 1 3 and 2 4. Excess heat is transferred to the interior of the heat insulation plate 1 and is also discharged from both sides through channel 3 5. The heat insulation plate 1 provides a certain degree of sealing. This device can achieve a multi-channel battery cover installation effect, with functions of sealing and fixing as well as efficient heat dissipation, making it highly practical.

[0031] The base plate 2 and the heat insulation plate 1 have through holes 6 in the middle. The through holes 6 in the middle of the base plate 2 and the heat insulation plate 1 facilitate the direct discharge of gas or heat inside the battery, enhance the heat dissipation efficiency, and provide convenience for battery installation and maintenance.

[0032] Example 2

[0033] Please see Figures 1-4As shown, this embodiment, based on embodiment 1, also includes: positioning holes 8 at the four corners of the base plate 2 and the heat insulation plate 1. The design of the positioning holes 8 at the four corners of the base plate 2 and the heat insulation plate 1 makes the installation process more precise, improves the assembly efficiency, and ensures a stable connection between the battery cover and the battery body, reducing the problem of poor sealing caused by misalignment.

[0034] The upper surface of the heat insulation plate 1 is provided with symmetrically designed contacts 7. The symmetrical contact 7 design on the upper surface of the heat insulation plate 1 facilitates the electrical connection of the battery and improves the ease of installation. At the same time, the symmetrical layout of the contacts 7 ensures the uniformity of current distribution and reduces the risk of local overheating.

[0035] The heat insulation plate 1 and the base plate 2 are provided with a through-type guide plate 9. The lower surface of the guide plate 9 is exposed on the lower surface of the base plate 2. The guide plate 9 is electrically connected to the contact 7. The guide plate 9 passes through the heat insulation plate 1 and the base plate 2 and is electrically connected to the contact 7, which makes the current transmission more stable. At the same time, the guide plate 9 is exposed on the lower surface of the base plate 2, which enhances the heat dissipation capacity.

[0036] The bottom center of the base plate 2 is provided with an arc-shaped groove 11, and channels 3 are distributed on the surface of the arc-shaped groove 11. The depth of the arc-shaped groove 11 is greater than that of the arc-shaped groove 10. The design of the arc-shaped groove 11 at the bottom of the base plate 2, together with the distribution of channels 3, increases the heat dissipation area. The greater depth of the arc-shaped groove 11 than that of the arc-shaped groove 10 allows heat to diffuse more efficiently from the central area to the outside, thus improving the overall heat dissipation effect.

[0037] The depth of the second arc groove 10 is less than the depth of the first arc groove 11. The number of channels 2 4 inside the second arc groove 10 is less than the number of channels 3 inside the first arc groove 11. The shallower depth of the second arc groove 10 and the smaller number of channels 2 4 allow heat to be discharged more concentratedly from the channels 1 3, while avoiding excessive heat dissipation channels from affecting the structural strength. This ensures heat dissipation efficiency while maintaining the mechanical stability of the base plate 2.

[0038] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A high-airtight battery top cover with heat dissipation channels, comprising a heat insulation plate (1), a bottom plate (2), a first channel (3), and a second channel (4), characterized in that: The heat insulation board (1) is fixed with a base plate (2) at its lower end. The base plate (2) has a channel 1 (3) with an arc-shaped distribution in the middle of its lower surface. The channel 1 (3) has a channel 2 (4) with an arc-shaped distribution on both sides. The heat insulation board (1) has a channel 3 (5) with a linear array distribution in the middle.

2. The high-airtightness battery top cover with heat dissipation channel according to claim 1, characterized in that: The base plate (2) and the heat insulation plate (1) are provided with through holes (6) designed to penetrate through.

3. A high-airtight battery top cover with a heat dissipation channel according to claim 1, characterized in that: The base plate (2) and the heat insulation plate (1) are provided with positioning holes (8) at the four corners.

4. A high-airtight battery top cover with a heat dissipation channel according to claim 1, characterized in that: The heat insulation plate (1) has symmetrically designed contacts (7) on its upper surface.

5. A high-airtight battery top cover with a heat dissipation channel according to claim 4, characterized in that: The heat insulation plate (1) and the base plate (2) are provided with a through-type guide plate (9), the lower surface of the guide plate (9) is exposed to the lower surface of the base plate (2), and the guide plate (9) is electrically connected to the contact (7).

6. A high-airtight battery top cover with a heat dissipation channel according to claim 1, characterized in that: The bottom plate (2) has an arc-shaped groove (11) at the middle of its lower end. The channel (3) is distributed on the surface of the arc-shaped groove (11). The depth of the arc-shaped groove (11) is greater than that of the arc-shaped groove (10).

7. A high-airtight battery top cover with a heat dissipation channel according to claim 6, characterized in that: The depth of the second arc groove (10) is less than the depth of the first arc groove (11), and the number of the second channel (4) inside the second arc groove (10) is less than the number of the first channel (3) inside the first arc groove (11).

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