Sealing ring for power battery of new energy automobile

By designing an anti-detachment mechanism and heat dissipation structure on the power battery sealing ring, the problem of the sealing ring falling off under high temperature conditions is solved, ensuring the sealing and service life of the battery.

CN222463147UActive Publication Date: 2025-02-11DATWYLER SEALING TECH ANHUI
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Patent Information

Application Number
CN202420215820.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-01-30
Publication Date
2025-02-11
Estimated Expiration
2034-01-30

AI Technical Summary

Technical Problem

During daily use of power batteries, due to high load charge and heat energy, the glue between the sealing ring and the end cap is hot melted, causing degumming and the sealing ring to fall off, endangering the sealing properties of the power batteries.

Method used

A sealing ring for power batteries of new energy vehicles was designed, using anti-detachment mechanism, including transverse and vertical heat conductors, horizontal frames and heat dissipation fins. These components form a back-shaped fixed structure to prevent the sealing ring from falling off and passing through The heat conducting sheet conducts heat to reduce the hot melting rate of the glue layer.

Benefits of technology

Effectively prevent the sealing ring from falling off under high temperature conditions, ensure the sealing of the battery, and reduce the hot melting rate of the glue layer through the heat dissipation effect, and extend the service life of the battery.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a sealing ring for a power battery of a new energy automobile, which relates to the technical field of a battery sealing ring main body, and comprises a cover plate, a sealing ring main body, an adhesive layer and a plurality of groups of anti-falling mechanisms, the anti-falling mechanisms are arranged on the sealing ring main body in a surrounding manner, and each anti-falling mechanism comprises a first heat-conducting fin and a second heat-conducting fin; through the arrangement of the anti-falling mechanisms, the transverse frame, the second heat-conducting sheet and the first heat-conducting sheet integrally form a concentric-square-shaped fixing structure, and then the multiple sets of anti-falling mechanisms are matched to assist in positioning the sealing ring body at multiple positions, so that the sealing ring body is prevented from falling off when an adhesive layer is heated and melted; and the first heat-conducting fin can still conduct heat received by the sealing ring main body to the second heat-conducting fin and the transverse frame in the use process of the battery, so that the heat dissipation effect on the sealing ring main body is effectively realized, the heating effect of the sealing ring main body on the adhesive layer is reduced, and the hot melting rate of the adhesive layer is reduced.
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Description

Technical Field

[0001] The utility model relates to the technical field of battery sealing rings, in particular to a sealing ring for a power battery of a new energy vehicle. Background Art

[0002] A sealing ring is a tool that uses its own structure and the softness of its own material to provide a seal at the gap position of the notch to prevent leakage of the assembled parts or the influx of external air or liquid.

[0003] In order to ensure a good use effect of the power battery, a sealing ring is generally glued to the end cover of the power battery in the prior art, so that when the end cover is installed in the battery housing, the sealing ring is squeezed to ensure the sealing inside the battery housing;

[0004] However, in reality, power batteries generate high-load charges and large amounts of heat energy during daily use. The high-temperature heat can easily melt the glue between the sealing ring and the end cover, causing severe debonding, leading to the sealing ring falling off and endangering the sealing inside the power battery. Utility Model Content

[0005] In order to solve the above technical problems, a sealing ring for a new energy vehicle power battery is provided, which solves the problem in the prior art that the power battery generates high load charge and large amount of heat energy during daily use, and the high temperature heat can easily melt the glue between the sealing ring body and the end cover, which can seriously cause debonding, and then cause the sealing ring body to fall off, endangering the sealing inside the power battery.

[0006] To achieve the above purpose, the technical solution adopted by the utility model is: a sealing ring for a power battery of a new energy vehicle, comprising a cover plate, a sealing ring body arranged on the bottom surface of the cover plate, and a glue layer arranged between the sealing ring body and the cover plate, and also comprising an anti-detachment mechanism for preventing the sealing ring body from debonding;

[0007] The anti-slipping mechanism is composed of several groups, and the several groups of anti-slipping mechanisms are arranged around the sealing ring body. The anti-slipping mechanism includes a first heat conductive plate fixedly embedded in the bottom surface of the sealing ring body laterally and a second heat conductive plate vertically fixed at both ends of the first heat conductive plate. The ends of the second heat conductive plates pass through the cover plate, and a connecting component is arranged between the two second heat conductive plates.

[0008] Preferably, the connecting component comprises a cross frame detachably disposed between two of the second heat conducting plates, and the cross frame is in contact with the top surface of the cover plate.

[0009] Preferably, a plurality of heat dissipation fins are fixed at equal intervals on the top surface of the cross frame.

[0010] Preferably, T-shaped plug-in blocks are fixed to both ends of the cross frame, and the plug-in blocks and the matching slots are provided on the side walls of the second heat conducting plate.

[0011] Compared with the prior art, the advantages of the utility model are: through the setting of the anti-falling mechanism, when the sealing ring body is adhered to the cover plate by the glue layer, the second heat conductive sheet penetrates the cover plate, and then a cross frame is assembled between the two second heat conductive sheets, so that the cross frame, the second heat conductive sheet and the first heat conductive sheet as a whole constitute a circular fixed structure, and then several groups of anti-falling mechanisms can cooperate to implement auxiliary positioning of the sealing ring body at multiple locations to prevent the sealing ring body from falling off when the glue layer is heated and melted, and the first heat conductive sheet can still transfer the heat received by the sealing ring body to the second heat conductive sheet and the cross frame during the use of the battery, thereby effectively implementing a heat dissipation effect on the sealing ring body, reducing the heating effect of the sealing ring body on the glue layer, and reducing the hot melting rate of the glue layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the structure of the sealing ring main body and the anti-slip mechanism of the utility model;

[0014] Figure 3 It is a schematic diagram of the partial structure of the sealing ring body of the utility model.

[0015] The numbers in the figure are:

[0016] 1. Cover plate; 2. Sealing ring body; 3. Glue layer; 4. First heat conducting plate; 5. Second heat conducting plate; 6. Cross frame; 7. Heat dissipation fins; 8. Plug-in block. DETAILED DESCRIPTION

[0017] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0018] Reference Figure 1-3 As shown, the sealing ring for the power battery of the new energy vehicle comprises a cover plate 1, a sealing ring body 2 arranged on the bottom surface of the cover plate 1, and a glue layer 3 arranged between the sealing ring body 2 and the cover plate 1;

[0019] When in use, the adhesive layer 3 is pre-coated on the top surface of the sealing ring body 2, and then the sealing ring body 2 can be fixed on the cover plate 1 under the viscosity of the adhesive layer 3, and then the sealing ring body 2 is assembled on the battery shell. In this way, the sealing ring body 2 can effectively ensure the sealing between the cover plate 1 and the battery shell, ensuring the sealing effect of the battery in daily use.

[0020] However, in reality, the power battery generates high load charge and a large amount of heat energy during daily use, and the high temperature heat can easily cause the glue layer 3 between the sealing ring body 2 and the cover plate 1 to melt, which can seriously cause debonding, and then cause the sealing ring body 2 to fall off, endangering the sealing inside the power battery;

[0021] In view of this, refer to Figure 1-3 As shown, it is worth noting that it also includes an anti-slip mechanism for preventing the sealing ring body 2 from debonding;

[0022] The anti-slip mechanism is composed of several groups, and the several groups of anti-slip mechanisms are arranged around the sealing ring body 2. The anti-slip mechanism includes a first heat conductive sheet 4 fixedly embedded in the bottom surface of the sealing ring body 2 and a second heat conductive sheet 5 vertically fixed at both ends of the first heat conductive sheet 4. The ends of the second heat conductive sheet 5 penetrate the cover plate 1, and a connecting component is arranged between the two second heat conductive sheets 5.

[0023] The connecting component includes a horizontal frame 6 detachably arranged between the two second heat conducting sheets 5, and the horizontal frame 6 is attached to the top surface of the cover plate 1;

[0024] By setting the anti-falling mechanism, when the sealing ring body 2 is adhered to the cover plate 1 by the adhesive layer 3, the second heat conductive sheet 5 penetrates the cover plate 1, and then the cross frame 6 is assembled between the two second heat conductive sheets 5, so that the cross frame 6, the second heat conductive sheet 5 and the first heat conductive sheet 4 form a circular fixed structure as a whole, and then several groups of anti-falling mechanisms can cooperate to implement auxiliary positioning of the sealing ring body 2 at multiple locations, so as to prevent the sealing ring body 2 from falling off when the adhesive layer 3 is heated and melted, and the first heat conductive sheet 4 can still transfer the heat received by the sealing ring body 2 to the second heat conductive sheet 5 and the cross frame 6 during the use of the battery, so as to effectively implement the heat dissipation effect on the sealing ring body 2, reduce the heating effect of the sealing ring body 2 on the adhesive layer 3, and reduce the hot melting rate of the adhesive layer 3.

[0025] Further, refer to Figure 3 As shown, it is worth noting that a plurality of heat dissipation fins 7 are fixed at equal intervals on the top surface of the horizontal frame 6;

[0026] By disposing a plurality of heat dissipation fins 7 , the contact area between the cross frame 6 and the air can be increased to a certain extent, thereby improving the heat dissipation performance of the cross frame 6 .

[0027] Further, refer to Figure 3 As shown, it is worth noting that T-shaped plug-in blocks 8 are fixed to both ends of the cross frame 6, and a slot adapted to the plug-in block 8 is provided on the side wall of the second heat conducting sheet 5;

[0028] By setting the plug-in block 8 and the slot, the plug-in block 8 is aligned and inserted into the slot. In this way, the plug-in block 8 cooperates with the slot to ensure the connection effect between the cross frame 6 and the second heat conducting plate 5 and facilitate the combination between the cross frame 6 and the second heat conducting plate 5.

[0029] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A sealing ring for a new energy vehicle power battery, comprising a cover plate (1), a sealing ring body (2) arranged on the bottom surface of the cover plate (1), and a glue layer (3) arranged between the sealing ring body (2) and the cover plate (1), characterized in that: It also includes an anti-slip mechanism for preventing the sealing ring body (2) from coming off; The anti-slipping mechanism is composed of a plurality of groups, and the plurality of groups of the anti-slipping mechanism are arranged around the sealing ring body (2). The anti-slipping mechanism comprises a first heat conductive sheet (4) fixedly embedded in the bottom surface of the sealing ring body (2) laterally and a second heat conductive sheet (5) fixedly fixed at both ends of the first heat conductive sheet (4) vertically, the ends of the second heat conductive sheet (5) pass through the cover plate (1), and a connecting component is arranged between the two second heat conductive sheets (5).

2. The sealing ring for a new energy vehicle power battery according to claim 1, characterized in that: The connecting component comprises a cross frame (6) detachably arranged between the two second heat conducting plates (5), and the cross frame (6) is in contact with the top surface of the cover plate (1).

3. The sealing ring for the new energy vehicle power battery according to claim 2, characterized in that: A plurality of heat dissipation fins (7) are fixed at equal intervals on the top surface of the cross frame (6).

4. The sealing ring for the new energy vehicle power battery according to claim 3, characterized in that: T-shaped plug-in blocks (8) are fixed to both ends of the cross frame (6), and a slot matching the plug-in block (8) is provided on the side wall of the second heat conducting sheet (5).