New energy battery cover plate sealing structure
By employing a labyrinthine sealing structure and limiting design, the problem of electrolyte leakage in the battery cover sealing structure has been solved, achieving a higher sealing effect and battery safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-20
- Publication Date
- 2026-03-20
AI Technical Summary
Existing new energy battery cover sealing structures are prone to electrolyte leakage under long-term use or under the influence of factors such as vibration and temperature changes, which affects battery performance and causes safety hazards.
It adopts a labyrinth-style sealing structure, including a sealing gasket, annular sealing gasket and corrugated groove design, combined with a limiting plate and a limiting rod to form multiple sealing paths, and the sealing ring increases the fit between the battery box and the cover.
It improves the battery's sealing effect, prevents electrolyte leakage, enhances battery safety, prevents external impurities from entering, and improves the overall performance of the battery.
Smart Images
Figure CN224020870U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to new energy battery technical field especially relates to a new energy battery cover plate sealing structure. BACKGROUND
[0002] With the rapid development of new energy vehicles and other electronic equipment, the performance and safety of new energy batteries are increasingly required;
[0003] The battery cover plate is an important part of the battery, and its sealing performance directly affects the overall performance of the battery.
[0004] At present, the common battery cover plate sealing structure has some deficiencies, such as poor sealing effect, which is prone to electrolyte leakage under the influence of long-term use or vibration, temperature change and other factors, which not only reduces the performance of the battery, but also may cause safety hazards.
[0005] Therefore, the utility model provides a new energy battery cover plate sealing structure. UTILITY MODEL CONTENT
[0006] The utility model aims at solving the shortcomings in the prior art and provides a new energy battery cover plate sealing structure.
[0007] In order to achieve the above object, the utility model adopts the following technical scheme: a new energy battery cover plate sealing structure, comprising:
[0008] The shell assembly is composed of a battery box and a cover plate, the cover plate is arranged at the top opening of the battery box, and a partition plate is arranged at the inner center of the battery box.
[0009] The sealing assembly is composed of sealing pads arranged on both sides of the partition plate and an annular sealing pad, the top of the sealing pad is provided with a mounting groove, the annular sealing pad is arranged on the sealing pad through the mounting groove, and the bottom of the sealing pad is provided with a wave groove.
[0010] Further, the cover plate is provided with a second connecting plate, the cover plate is provided with four second connecting plates, the four second connecting plates are distributed in a rectangular shape, and the four second connecting plates are provided with second mounting holes.
[0011] The beneficial effects of the above further scheme are: under the action of the second connecting plate, the first connecting plate is aligned, the battery box and the cover plate are aligned and fitted, and the battery part is sealed.
[0012] Further, the battery box is provided with a first connecting plate, the first connecting plate is provided with four first connecting plates, and the four first connecting plates are provided with first mounting holes.
[0013] The beneficial effect of the above further scheme is that the first connecting plate and the cover plate are fixed by bolts under the action of the first mounting hole and the second mounting hole, so that the battery box and the cover plate are integrated, and separation between the battery box and the cover plate during use is avoided.
[0014] Further, a sealing ring is arranged between the first connecting plate and the cover plate.
[0015] The beneficial effect of the above further scheme is that the sealing effect between the battery box and the cover plate is increased under the action of the sealing ring, and leakage of electrolyte emitted by the battery during use is avoided.
[0016] Further, a limiting hole plate is arranged at four corners inside the battery box.
[0017] The beneficial effect of the above further scheme is that the limiting hole plate is used for alignment and limiting between the battery box and the cover plate, so that misalignment between the battery box and the cover plate during installation or use is avoided, and leakage of electrolyte of the battery is avoided.
[0018] Further, a limiting hole is arranged above the limiting hole plate on the sealing assembly.
[0019] The beneficial effect of the above further scheme is that the limiting hole arranged on the sealing assembly is used to stably fix the sealing assembly in the battery box during use, and displacement or inclination of the sealing assembly during use is avoided.
[0020] Further, a limiting rod penetrating through the limiting hole and connected with the limiting hole plate is arranged at four corners of the bottom of the cover plate.
[0021] The beneficial effect of the above further scheme is that the limiting rod penetrating through the limiting hole and connected with the limiting hole plate is used for limiting, so that displacement between the battery box, the sealing assembly and the cover plate during use is avoided, and the sealing effect on the battery is reduced.
[0022] Compared with the prior art, the utility model has the advantages and positive effects that:
[0023] 1、In the utility model, the sealing effect between the cover plate and the battery is increased under the action of the sealing gasket, and further, under the action of the annular sealing gasket, the lower surface of the cover plate is matched to form a labyrinth sealing structure, when the internal pressure of the battery is increased, the electrolyte needs to pass through multiple annular sealing gaskets to leak to the outside, so that the leakage path is increased, and the sealing effect is improved.
[0024] 2、The utility model discloses further under the action of the wave groove, this line can better fit the upper edge surface of battery shell, even if the battery shell surface exists tiny uneven, can also realize close contact through the elastic deformation of wave shape line, effectively prevent the outside impurity from entering the battery inside, thereby improved the security of battery. BRIEF DESCRIPTION OF DRAWINGS
[0025] Figure 1 It is the front view of a new energy battery cover plate sealing structure of the utility model;
[0026] Figure 2 It is the split drawing of a new energy battery cover plate sealing structure of the utility model;
[0027] Figure 3 It is the split drawing of the shell assembly in a new energy battery cover plate sealing structure of the utility model;
[0028] Figure 4 It is the split drawing of the sealing assembly in a new energy battery cover plate sealing structure of the utility model.
[0029] DRAWINGS
[0030] 1, shell assembly;11, battery box;12, first connecting plate;121, first mounting hole;13, sealing ring;14, cover plate;141, second connecting plate;142, second mounting hole;143, limiting rod;15, partition;16, limiting hole plate;
[0031] 2, sealing assembly;21, sealing gasket;22, installation groove;23, annular sealing gasket;24, limiting hole;25, wave groove. DETAILED DESCRIPTION
[0032] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.
[0033] As Figures 1-4 Indicated, the utility model provides a technical scheme: a new energy battery cover plate sealing structure, comprising:
[0034] Shell assembly 1, shell assembly 1 is by battery box 11 and cover plate 14 constitutes, cover plate 14 sets up at the top opening place of battery box 11, and the inside center of battery box 11 is provided with partition 15;
[0035] The sealing assembly 2 is composed of the sealing gasket 21 arranged on both sides of the partition plate 15 and the annular sealing gasket 23, the top of the sealing gasket 21 is provided with the mounting groove 22, the annular sealing gasket 23 is arranged on the sealing gasket 21 through the mounting groove 22, the bottom of the sealing gasket 21 is provided with the wave groove 25, the cover plate 14 is provided with the second connecting plate 141, the cover plate 14 is provided with four second connecting plates 141 which are distributed in a rectangular shape, the four second connecting plates 141 are all provided with the second mounting hole 142, the battery box 11 is provided with the first connecting plate 12, the battery box 11 is provided with four first connecting plates 12 which are all provided with the first mounting hole 121, under the action of the sealing gasket 21, the sealing effect between the cover plate 14 and the battery is increased, further, under the action of the annular sealing gasket 23, the lower surface of the cover plate 14 is matched to form a labyrinth sealing structure, when the internal pressure of the battery increases, the electrolyte needs to pass through the multiple annular sealing gaskets 23 to leak to the outside, so as to increase the leakage path and improve the sealing effect, further, under the action of the wave groove 25, the texture can better fit the upper edge surface of the battery shell, even if there is a slight unevenness on the surface of the battery shell, the elastic deformation of the wave-shaped texture can also realize close contact, effectively preventing external impurities from entering the battery, thereby improving the safety of the battery.
[0036] Further, as shown in Figure 2 Figure 4 The inside four corners of the battery box 11 are provided with the limiting hole plate 16, the sealing assembly 2 is provided with the limiting hole 24 above the limiting hole plate 16, the bottom four corners of the cover plate 14 are provided with the limiting rod 143 which is connected with the limiting hole plate 16 after penetrating through the limiting hole 24, the limiting rod 143 is connected with the limiting hole plate 16 after penetrating through the limiting hole 24, so as to avoid displacement between the battery box 11, the sealing assembly 2 and the cover plate 14 during use, thereby reducing the sealing effect of the battery.
[0037] In the above scheme, there is also a sealing problem between the first connecting plate 12 and the cover plate 14, as shown in Figure 3 In this scheme, the sealing ring 13 is arranged between the first connecting plate 12 and the cover plate 14, under the action of the sealing ring 13, the sealing effect between the battery box 11 and the cover plate 14 is increased, so as to avoid the electrolyte emitted by the battery from leaking out during use.
[0038] Working principle: as shown in Figures 1-4 As shown, first, the battery is placed in the battery box 11, second, the sealing assembly 2 is placed on the top and bottom of the battery, further, the cover plate 14 is clamped on the top of the battery box 11 so that the limiting rod 143 penetrates through the limiting hole 24 and is connected with the limiting hole plate 16, in the use process, under the action of the sealing gasket 21, the sealing effect between the cover plate 14 and the battery is increased, further, under the action of the annular sealing gasket 23, the lower surface of the cover plate 14 is matched to form a labyrinth sealing structure, when the internal pressure of the battery is increased, the electrolyte needs to pass through multiple annular sealing gaskets 23 to leak to the outside, thereby increasing the leakage path and improving the sealing effect, further, under the action of the wave groove 25, the texture can better fit the upper edge surface of the battery shell, even if there is a slight unevenness on the surface of the battery shell, the elastic deformation of the wave-shaped texture can also realize close contact, effectively prevent external impurities from entering the battery, thereby improving the safety of the battery.
[0039] The above is only a preferred embodiment of the present application, and is not intended to limit the present application in other forms, and any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification of the above embodiments made according to the technical essence of the present application without departing from the technical scheme of the present application still belongs to the protection scope of the present application.
Claims
1. A sealing structure for a new energy battery cover, characterized in that, include: The housing assembly (1) is composed of a battery box (11) and a cover plate (14). The cover plate (14) is located at the top opening of the battery box (11), and a partition plate (15) is located at the center of the inside of the battery box (11). The sealing assembly (2) consists of a sealing gasket (21) and an annular sealing gasket (23) disposed on both sides of the partition (15). The top of the sealing gasket (21) is provided with an installation groove (22), and the annular sealing gasket (23) is disposed on the sealing gasket (21) through the installation groove (22). The bottom of the sealing gasket (21) is provided with a wave groove (25).
2. The sealing structure for a new energy battery cover plate according to claim 1, characterized in that: The cover plate (14) is provided with a second connecting plate (141). There are four cover plates (14) in total, and the four second connecting plates (141) are arranged in a rectangular shape. Each of the four second connecting plates (141) is provided with a second mounting hole (142).
3. The sealing structure for a new energy battery cover according to claim 1, characterized in that: The battery box (11) is provided with a first connecting plate (12), and there are four first connecting plates (12), and each of the four first connecting plates (12) is provided with a first mounting hole (121).
4. The sealing structure for a new energy battery cover plate according to claim 3, characterized in that: A sealing ring (13) is provided between the first connecting plate (12) and the cover plate (14).
5. The sealing structure for a new energy battery cover according to claim 1, characterized in that: Limiting holes (16) are provided at the four corners inside the battery box (11).
6. The sealing structure for a new energy battery cover plate according to claim 1, characterized in that: The sealing assembly (2) has a limiting hole (24) above the limiting hole plate (16).
7. The sealing structure for a new energy battery cover plate according to claim 1, characterized in that: The cover plate (14) has a limiting rod (143) at the four corners of its bottom, which is connected to the limiting hole plate (16) after passing through the limiting hole (24).