A multi-stage acid-proof venting structure for storage batteries

Abstract

A multi-stage acid-proof venting structure for a storage battery includes a bottom cover and a top cover. The top surface of the bottom cover has a groove, within which a support frame is located. On the side of the support frame near the center of the bottom cover, two first venting slots extending through both sides are provided along its length. On the side of the support frame near the center of the bottom cover, two first partitions are provided. A horizontal plate perpendicular to the side of the first partitions is provided between the first partitions. Multiple second partitions, spaced apart along the length of the horizontal plate and perpendicular to the side of the support frame, are provided between the horizontal plate and the support frame. Second venting slots are provided on the top surfaces of the second partitions and the horizontal plates. The top cover fits into the groove, and its bottom surface has welding rods that match the top surfaces of the support frame, first partitions, horizontal plates, and second partitions for connecting the bottom cover. The welding rods have a trapezoidal cross-section with a width not exceeding 0.5 mm and a slope angle not less than 100 degrees. This design increases the flow path of acid mist and ensures a sealing effect through welding, reducing the possibility of leakage and demonstrating strong practicality.

Description

Technical Field

[0001] This utility model relates to the field of storage battery technology, and in particular to a multi-stage acid-proof venting structure for storage batteries. Background Technology

[0002] Currently, the top and bottom covers of lead-acid batteries are typically bonded together with adhesive. While this method is convenient, it doesn't achieve a complete seal between the top and bottom covers. This prevents gases generated within the battery from escaping through designated locations, and may cause acid mist to liquefy and leak from the vent, potentially corroding the vehicle. Furthermore, some batteries use an insert-type terminal installation, which can also lead to acid mist corroding the terminals, reducing battery life. Therefore, it is necessary to improve the connection structure between the top and bottom covers to reduce the possibility of acid mist leakage. Utility Model Content

[0003] In view of the shortcomings of the above-mentioned prior art, this application provides a multi-stage acid-proof venting structure for batteries, which increases the flow path of acid mist and ensures sealing effect through welding, reducing the possibility of leakage, and has strong practicality.

[0004] To achieve the above objectives, the present invention employs the following technology:

[0005] A multi-stage acid-proof venting structure for a storage battery includes: a bottom cover and a top cover.

[0006] The top surface of the bottom cover has a groove, and a support frame is provided in the groove. The top surface of the support frame near the center of the bottom cover has two first exhaust grooves that run through both sides along its length. The support frame near the center of the bottom cover has two first partitions. A horizontal plate perpendicular to its side is provided between the first partitions. Multiple second partitions are arranged at intervals along their length and perpendicular to their side between the horizontal plate and the support frame. The top surface of the second partitions and the horizontal plates has second exhaust grooves. The top cover fits into the groove, and the bottom surface has welding rods that match the top surfaces of the support frame, the first partitions, the horizontal plates, and the second partitions for connecting the bottom cover.

[0007] Furthermore, there is a gap between the first partition and the adjacent end of the support frame to accommodate the battery terminals.

[0008] Furthermore, the side of the horizontal plate is spaced from the side of the groove near the center of the bottom cover, and the second vent groove on the horizontal plate is located at its center.

[0009] Furthermore, the side and both ends of the support frame furthest from the center of the bottom cover are fitted with the sidewall of the groove.

[0010] Furthermore, a notch is provided on the side of the groove near the center of the bottom cover.

[0011] Furthermore, the first exhaust channel is located between the second partition and the adjacent first partition.

[0012] Furthermore, the welding rod has a trapezoidal cross-section with a width not exceeding 0.5 mm and a bevel angle not less than 100 degrees.

[0013] The advantages of this utility model are as follows: by setting support frames, partitions, and cross plates in the groove of the bottom cover, the flow path of acid mist is increased, so that the acid mist can remain in the groove for a longer time, ensuring its full liquefaction and thus reducing the possibility of leakage; and by connecting the welding rod to the bottom cover and the top cover through ultrasonic welding, the sealing effect is ensured, further reducing the possibility of leakage, and ensuring that the acid mist gas can only be discharged from the designated location. Attached Figure Description

[0014] The accompanying drawings described herein are merely illustrative of selected embodiments, not all possible implementations, and are not intended to limit the scope of this invention.

[0015] Figure 1 This is a three-dimensional schematic diagram of the overall structure of an embodiment of this application.

[0016] Figure 2 This is a perspective view of the bottom cover according to an embodiment of this application.

[0017] Figure 3 This is a three-dimensional schematic diagram of the top cover according to an embodiment of this application. Detailed Implementation

[0018] To make the objectives, technical solutions and advantages of the present utility model clearer, the implementation methods of the present utility model will be described in detail below with reference to the accompanying drawings. However, the embodiments described in the present utility model are only some embodiments of the present utility model, and not all embodiments.

[0019] like Figures 1-3 As shown, this example provides a multi-stage acid-proof venting structure for a storage battery, including: a bottom cover 1 and a top cover 2.

[0020] The top surface of the bottom cover 1 has a groove 11, and a support frame 12 is provided in the groove 11. The top surface of the support frame 12 near the center of the bottom cover 1 has two first exhaust grooves 13 that run through both sides along its length. The support frame 12 near the center of the bottom cover 1 has two first partitions 14. A horizontal plate 15 perpendicular to its side is provided between the first partitions 14. Multiple second partitions 16 are arranged at intervals along their length and perpendicular to their sides between the horizontal plate 15 and the support frame 12. The top surfaces of the second partitions 16 and the horizontal plates 15 have second exhaust grooves 17, thus forming a continuous flow-blocking structure to slow down the flow speed of acid gas. The top cover 2 fits into the groove 11, and its bottom surface has welding rods 21 that match the top surfaces of the support frame 12, the first partitions 14, the horizontal plates 15, and the second partitions 16. The bottom cover 1 and the top cover 2 are connected by ultrasonic welding using the welding rods 21 to ensure the connection between the top cover 2 and the bottom cover 1 is stable and airtight, reducing the possibility of acid mist leakage.

[0021] Specifically, there is a gap between the first partition 14 and the adjacent ends of the support frame 12 for accommodating battery terminals.

[0022] Specifically, there is a gap between the side of the horizontal plate 15 and the side of the groove 11 near the center of the bottom cover 1, and the second exhaust groove 17 on the horizontal plate 15 is located at its center, so that the acid mist flowing out from the support frame 12 will first enter the area between the first partition 14 and the second partition 16, and then flow to the area of ​​the second partition 16. During this flow process, the acid mist stays in the groove 11 for a longer time, thereby fully liquefying it and reducing the possibility of leakage.

[0023] Specifically, the side and both ends of the support frame 12 away from the center of the bottom cover 1 are fitted with the side wall of the groove 11, thereby ensuring the sealing between the top cover 2 and the groove 11 when the top cover 2 is fitted into the groove 11.

[0024] Specifically, a notch 18 is provided on the side of the groove 11 near the center of the bottom cover 1, so that the gas in the groove 11 can only be discharged through the notch 18, reducing the possibility of corrosion to the locomotive.

[0025] Specifically, the first exhaust channel 13 is located between the second partition 16 and the adjacent first partition 14, so that the acid mist in the support frame 12 can only flow through the space between the second partition 16 and the adjacent first partition 14 to the space between the two second partitions 16, thus increasing the flow path of the acid mist.

[0026] Specifically, the cross-section of the welding rod 21 is trapezoidal, with a width not exceeding 0.5 mm and a slope angle not less than 100 degrees, to ensure that the welding rod can be melted smoothly when ultrasonic welding is used, and to connect the bottom cover 1 and the top cover 2, while ensuring the welding strength.

[0027] Since the above are merely preferred embodiments of this utility model and are not intended to limit this utility model, it is obvious that those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A multi-stage acid-proof venting structure for a storage battery, characterized in that, include: The bottom cover (1) has a groove (11) on its top surface. A support frame (12) is provided in the groove (11). The support frame (12) has two first exhaust grooves (13) that are provided through both sides on the top surface of the side of the bottom cover (1) near the center of the bottom cover (1) along its length direction. The support frame (12) has two first partitions (14) on the side of the bottom cover (1) near the center of the bottom cover (1). A horizontal plate (15) perpendicular to its side is provided between the first partitions (14). A plurality of second partitions (16) are provided between the horizontal plate (15) and the support frame (12) and are arranged at intervals along its length direction and perpendicular to its side. The top surfaces of the second partitions (16) and the horizontal plate (15) are provided with second exhaust grooves (17). The top cover (2) fits into the groove (11), and the bottom surface is provided with welding rods (21) that match the top surfaces of the support frame (12), the first partition (14), the horizontal plate (15), and the second partition (16) for connecting the bottom cover (1).

2. The multi-stage acid-proof venting structure for a storage battery according to claim 1, characterized in that, The first partition (14) has a gap between the adjacent ends of the support frame (12) for accommodating battery terminals.

3. The multi-stage acid-proof venting structure for a storage battery according to claim 1, characterized in that, The side of the horizontal plate (15) is spaced from the side of the groove (11) near the center of the bottom cover (1), and the second exhaust groove (17) on the horizontal plate (15) is located at its center.

4. The multi-stage acid-proof venting structure for a storage battery according to claim 1, characterized in that, The side and both ends of the support frame (12) away from the center of the bottom cover (1) are in contact with the side wall of the groove (11).

5. The multi-stage acid-proof venting structure for a storage battery according to claim 1, characterized in that, The groove (11) has a notch (18) on the side near the center of the bottom cover (1).

6. The multi-stage acid-proof venting structure for a storage battery according to claim 1, characterized in that, The first exhaust groove (13) is located between the second partition (16) and the adjacent first partition (14).

7. The multi-stage acid-proof venting structure for a storage battery according to claim 1, characterized in that, The cross section of the welding rod (21) is trapezoidal, with a width not exceeding 0.5 mm and a slope angle not less than 100 degrees.

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