Sealing structure for lead sleeve on lead-acid storage battery cover

Abstract

The utility model provides a lead sleeve sealing structure on a lead-acid storage battery cover, which relates to the technical field of lead-acid storage batteries, and comprises a battery cover body, a lead sleeve body and hot melting elastic glue, the battery cover body is provided with a lead sleeve hole, the outer wall of the lead sleeve body is provided with a first sealing ring, a second sealing ring, a third sealing ring and a fourth sealing ring, a first sealing groove, a second sealing groove, a third sealing groove and a fourth sealing groove are formed in the lead sleeve hole, and hot-melt elastic glue is arranged in the first groove, the second groove and the third groove; according to the utility model, the hot-melt elastic glue is arranged in the first groove, the second groove and the third groove formed among the first sealing ring, the second sealing ring, the third sealing ring and the fourth sealing ring on the outer wall of the lead sheath body; and the hot-melt elastic glue is stably connected with the lead sleeve body and the battery cover body in a sealing manner after being heated in the injection molding process of the battery cover body, so that the problem of sealing failure between the lead sleeve body and the battery cover body caused by temperature change is effectively prevented.

Description

Technical Field

[0001] This utility model relates to the field of lead-acid battery technology, and in particular to a lead-acid battery cover sealing structure with lead sleeve. Background Technology

[0002] A lead-acid battery (VRLA) is a type of battery whose electrodes are primarily made of lead and its oxides, and whose electrolyte is a sulfuric acid solution. A VRLA battery consists of five basic parts: a positive electrode plate, a negative electrode plate, an electrolyte, a separator, and a casing (battery case). The positive electrode active material is lead dioxide, the negative electrode active material is lead, sulfuric acid is used as the electrolyte, and the separator is made of materials such as microporous rubber, sintered polyvinyl chloride, glass fiber, or polypropylene.

[0003] Lead-acid batteries typically have lead sleeves installed on their battery covers. During the injection molding process, the lead sleeves are fixed into the lead sleeve holes on the battery cover. Without an additional sealing structure between them, the seal between the lead sleeve and the lead sleeve hole deteriorates with continuous use and temperature changes, leading to air leakage and fluid seepage, thus affecting the normal operation of the lead-acid battery. Therefore, this invention proposes a lead sleeve sealing structure for lead-acid battery covers to address the shortcomings of the existing technology. Utility Model Content

[0004] To address the aforementioned problems, the purpose of this utility model is to provide a lead-acid battery cover lead sleeve sealing structure. By providing hot-melt elastic adhesive inside the first, second, third, and fourth sealing rings formed between the first, second, third, and fourth sealing rings on the outer wall of the lead sleeve body, the hot-melt elastic adhesive stably seals and connects the lead sleeve body and the battery cover body after being heated during the injection molding process of the battery cover body. This effectively prevents the problem of seal failure between the lead sleeve body and the battery cover body due to temperature changes, thereby avoiding air leakage or liquid seepage problems in lead-acid batteries.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] The utility model provides a lead acid battery cover lead sleeve sealing structure, including battery cover body, lead sleeve body and hot melt elastic glue, be equipped with lead sleeve hole on the battery cover body, lead sleeve hole is equipped with four groups in rectangular array, four groups lead sleeve hole all are equipped with lead sleeve body, be equipped with first sealing ring, second sealing ring, third sealing ring and fourth sealing ring on the lead sleeve body outer wall, be equipped with first sealing groove, second sealing groove, third sealing groove and fourth sealing groove in the lead sleeve hole, first sealing ring is adapted with first sealing groove, second sealing ring is adapted with second sealing groove, third sealing ring is adapted with third sealing groove, fourth sealing ring is adapted with fourth sealing groove, first sealing ring and second sealing ring constitute first recess between, second sealing ring and third sealing ring constitute second recess between, third sealing ring and fourth sealing ring constitute third recess between, first recess, second recess and third recess all are equipped with hot melt elastic glue.

[0007] Further improvement lies in that the first sealing ring and the fourth sealing ring have the same diameter, the second sealing ring and the third sealing ring have the same diameter, and the first sealing ring and the fourth sealing ring have a larger diameter than the second sealing ring and the third sealing ring.

[0008] Further improvement lies in that the lead sleeve body extends beyond the top of the lead sleeve hole at the upper end, the top of the first sealing ring is flush with the top of the lead sleeve hole, and an end sealing element is arranged at the connecting position of the first sealing ring and the lead sleeve hole.

[0009] Further improvement lies in that the end sealing element comprises a sealing ring cover, an inner ring and an outer ring, the sealing ring cover is arranged directly above the connecting position of the first sealing ring and the lead sleeve hole, the bottom of the sealing ring cover is provided with the inner ring, the bottom of the sealing ring cover outside the inner ring is provided with the outer ring, the top of the battery cover body is provided with a first pressing groove matched with the outer ring, and the top of the first sealing ring is provided with a second pressing groove matched with the inner ring.

[0010] Further improvement lies in that the first sealing ring, the second sealing ring, the third sealing ring and the fourth sealing ring are integrally formed with the lead sleeve body.

[0011] Further improvement lies in that the inner walls of the first recess, the second recess and the third recess are provided with recessed points, the recessed points are provided in plurality, and the plurality of recessed points form reinforcing areas inside the first recess, the second recess and the third recess, respectively.

[0012] The beneficial effects of this utility model are as follows: This utility model uses hot-melt elastic adhesive to form a first groove, a second groove, a third groove, and a fourth sealing ring on the outer wall of the lead sleeve body. This hot-melt elastic adhesive, after being heated during the injection molding process of the battery cover body, stably seals and connects the lead sleeve body and the battery cover body, effectively preventing the problem of seal failure between the lead sleeve body and the battery cover body due to temperature changes. This avoids air leakage or liquid seepage in lead-acid batteries. The hot-melt elastic adhesive increases the contact area of ​​the mating surfaces between the lead sleeve body and the battery cover body, increasing the distance for acid creep. The elasticity of the hot-melt elastic adhesive itself effectively creates gaps between the battery cover body and the lead sleeve body, thereby minimizing acid and air leakage. Furthermore, this utility model effectively seals the top of the mating surfaces of the lead sleeve body and the battery cover body by setting end seals, comprehensively improving the sealing performance of the lead sleeve body and the battery cover body during installation. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the front sectional view of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the main sectional view of the lead sleeve hole structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the main sectional view of the lead sleeve body structure of this utility model;

[0016] Figure 4 This is a schematic front sectional view of the end seal structure of this utility model;

[0017] Figure 5 This utility model Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0018] Figure 6 This utility model Figure 3 Enlarged schematic diagram of the structure at point B;

[0019] Figure 7 This utility model Figure 3 Enlarged schematic diagram of the structure at point C.

[0020] The components are as follows: 1. Battery cover body; 2. Lead sleeve body; 3. Hot melt elastic adhesive; 4. Lead sleeve hole; 5. First sealing ring; 6. Second sealing ring; 7. Third sealing ring; 8. Fourth sealing ring; 9. First sealing groove; 10. Second sealing groove; 11. Third sealing groove; 12. Fourth sealing groove; 13. First groove; 14. Second groove; 15. Third groove; 16. End seal; 1601. Sealing ring cover; 1602. Inner ring; 1603. Outer ring; 17. First pressure groove; 18. Second pressure groove; 19. Recessed point. DETAILED DESCRIPTION

[0021] In order to deepen the understanding of the utility model, the utility model will be further described below in conjunction with the embodiments, and the embodiments are only used to explain the utility model and do not constitute the limitation of the protection scope of the utility model.

[0022] According to Figures 1-7 As shown in the figure, the embodiment provides a lead sleeve sealing structure on a lead-acid storage battery cover, which comprises a battery cover body 1, a lead sleeve body 2 and hot melt elastic glue 3, the battery cover body 1 is provided with lead sleeve holes 4, the lead sleeve holes 4 are arranged in a rectangular array and are provided with four groups, the lead sleeve holes 4 are all provided with the lead sleeve body 2, the outer wall of the lead sleeve body 2 is provided with a first sealing ring 5, a second sealing ring 6, a third sealing ring 7 and a fourth sealing ring 8, the lead sleeve hole 4 is provided with a first sealing groove 9, a second sealing groove 10, a third sealing groove 11 and a fourth sealing groove 12, the first sealing ring 5 is matched with the first sealing groove 9, the second sealing ring 6 is matched with the second sealing groove 10, the third sealing ring 7 is matched with the third sealing groove 11, the fourth sealing ring 8 is matched with the fourth sealing groove 12, a first groove 13 is formed between the first sealing ring 5 and the second sealing ring 6, a second groove 14 is formed between the second sealing ring 6 and the third sealing ring 7, a third groove 15 is formed between the third sealing ring 7 and the fourth sealing ring 8, and the first groove 13, the second groove 14 and the third groove 15 are all provided with the hot melt elastic glue 3.

[0023] The hot melt elastic glue 3 of the utility model is filled in the first groove 13, the second groove 14 and the third groove 15, then the lead sleeve body 2 is placed at a specified position of a battery cover body 1 injection molding mold, so that the hot melt elastic glue 3 is stably fixed between the battery cover body 1 and the lead sleeve body 2 by using heat in the injection molding process of the battery cover body 1, and sealing is realized.

[0024] The first sealing ring 5 and the fourth sealing ring 8 are of the same diameter, the second sealing ring 6 and the third sealing ring 7 are of the same diameter, and the diameter of the first sealing ring 5 and the fourth sealing ring 8 is greater than that of the second sealing ring 6 and the third sealing ring 7. Through the above arrangement, the sealing stability between the battery cover body 1 and the lead sleeve body 2 can be maximized.

[0025] The lead sleeve hole 4 top is extended out of the upper end of the lead sleeve body 2, the top of the first sealing ring 5 is flush with the top of the lead sleeve hole 4, and an end sealing piece 16 is arranged at the connecting position of the first sealing ring 5 and the lead sleeve hole 4. The end sealing piece 16 can realize the top sealing of the joint surface position between the first sealing ring 5 and the lead sleeve hole 4, and further prevent the problems of gas leakage and liquid seepage.

[0026] The end sealing piece 16 comprises a sealing ring cover 1601, an inner ring 1602 and an outer ring 1603, the sealing ring cover 1601 is arranged above the connecting position of the first sealing ring 5 and the lead sleeve hole 4, the bottom of the sealing ring cover 1601 is provided with the inner ring 1602, the bottom of the sealing ring cover 1601 outside the inner ring 1602 is provided with the outer ring 1603, the top of the battery cover body 1 is provided with a first pressing groove 17 matched with the outer ring 1603, and the top of the first sealing ring 5 is provided with a second pressing groove 18 matched with the inner ring 1602. The end sealing piece 16 of the utility model is pressed and fixed at the connecting position of the first sealing ring 5 and the lead sleeve hole 4, specifically, the end sealing piece 16 is fixed in the first pressing groove 17 and the second pressing groove 18 through an adhesive.

[0027] The first sealing ring 5, the second sealing ring 6, the third sealing ring 7 and the fourth sealing ring 8 are integrally formed with the lead sleeve body 2.

[0028] The inner walls of the first groove 13, the second groove 14 and the third groove 15 are provided with recessed points 19, the recessed points 19 are provided in plurality, and the plurality of recessed points 19 form reinforcing areas inside the first groove 13, the second groove 14 and the third groove 15 respectively. The setting of the recessed points 19 can improve the fixing stability between the hot melt elastic glue 3 and the first groove 13, the second groove 14 and the third groove 15.

[0029] The utility model discloses the first groove 13, the second groove 14 and the third groove 15 inside the first sealing ring 5, the second sealing ring 6, the third sealing ring 7 and the fourth sealing ring 8 formed on the outer wall of the lead sleeve body 2 are provided with the hot melt elastic glue 3, the hot melt elastic glue 3 is stably sealed and connected between the lead sleeve body 2 and the battery cover body 1 after being heated in the injection molding process of the battery cover body 1, effectively prevents the problem of sealing failure between the lead sleeve body 2 and the battery cover body 1 caused by temperature change, thereby avoiding the problems of air leakage or liquid seepage of the lead-acid storage battery, the hot melt elastic glue 3 can increase the contact area of the bonding surface between the lead sleeve body 2 and the battery cover body 1, increase the distance of acid climbing, the hot melt elastic glue 3 itself has elasticity and can effectively prevent the generation of acid leakage and air leakage by preventing the generation of the gap between the battery cover body 1 and the lead sleeve body 2, thereby avoiding the generation of acid leakage and air leakage to the maximum extent, the end sealing piece 16 is arranged on the top of the bonding surface between the lead sleeve body 2 and the battery cover body 1, and the installation sealing property of the lead sleeve body 2 and the battery cover body 1 is improved.

[0030] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A lead acid battery cover on lead jacket seal structure, characterized by: The utility model relates to a battery cover, including battery cover body (1), lead sleeve body (2) and hot melt elastic glue (3), be equipped with lead sleeve hole (4) on battery cover body (1), lead sleeve hole (4) is provided with four groups in rectangular array, four groups lead sleeve hole (4) all are equipped with lead sleeve body (2) in, the outer wall of lead sleeve body (2) is equipped with first sealing ring (5), second sealing ring (6), third sealing ring (7) and fourth sealing ring (8), be equipped with first sealing groove (9), second sealing groove (10), third sealing groove (11) and fourth sealing groove (12) in lead sleeve hole (4), first sealing ring (5) and first sealing groove (9) are adapted, second sealing ring (6) and second sealing groove (10) are adapted, third sealing ring (7) and third sealing groove (11) are adapted, fourth sealing ring (8) and fourth sealing groove (12) are adapted, first sealing ring (5) and second sealing ring (6) between constitute first recess (13), second sealing ring (6) and third sealing ring (7) between constitute second recess (14), third sealing ring (7) and fourth sealing ring (8) between constitute third recess (15), first recess (13), second recess (14) and third recess (15) all are equipped with hot melt elastic glue (3) in.

2. A lead acid battery cover lead-on jacket seal as defined in claim 1 wherein: First sealing ring (5) and fourth sealing ring (8) are same in diameter, second sealing ring (6) and third sealing ring (7) are same in diameter, and the diameter of first sealing ring (5) and fourth sealing ring (8) is greater than the diameter of second sealing ring (6) and third sealing ring (7).

3. The cover lead jacket seal structure for a lead-acid battery according to claim 1, characterized by: The upper end of lead sleeve body (2) extends out of the top of lead sleeve hole (4), the top of first sealing ring (5) is flush with the top of lead sleeve hole (4), and an end sealing element (16) is arranged at the connecting position of first sealing ring (5) and lead sleeve hole (4).

4. A cover lead jacket seal for a lead-acid battery as defined in claim 3 wherein: The end sealing element (16) comprises a sealing ring cover (1601), an inner ring (1602), and an outer ring (1603). The sealing ring cover (1601) is arranged directly above the connecting position of the first sealing ring (5) and the lead sleeve hole (4). The bottom of the sealing ring cover (1601) is provided with the inner ring (1602). The bottom of the sealing ring cover (1601) on the outer side of the inner ring (1602) is provided with the outer ring (1603). The top of the battery cover body (1) is provided with a first pressing groove (17) matched with the outer ring (1603). The top of the first sealing ring (5) is provided with a second pressing groove (18) matched with the inner ring (1602).

5. The cover lead jacket seal construction for a lead-acid battery of claim 1 wherein: The first sealing ring (5), the second sealing ring (6), the third sealing ring (7), and the fourth sealing ring (8) are integrally formed with the lead sleeve body (2).

6. The cover lead jacket seal construction for a lead-acid battery of claim 1 wherein: The inner walls of the first recess (13), the second recess (14), and the third recess (15) are provided with recessed points (19). The recessed points (19) are provided in multiple numbers. The multiple recessed points (19) form reinforcing areas inside the first recess (13), the second recess (14), and the third recess (15), respectively.

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