CN-224232519-U - Capacitor cover plate and capacitor

Abstract

The utility model discloses a capacitor cover plate which comprises a cover plate body and a wiring terminal, wherein a protruding part is arranged on the cover plate body, a welding groove is formed in the protruding part, the wiring terminal is provided with a welding section, the welding section is welded to the welding groove, and the periphery of the welding section is arranged on the side wall of the welding groove in a surrounding mode. A capacitor comprises a shell, an electrode core and a capacitor cover plate. When the cover plate is used, the strength of the position of the wire outlet terminal is increased due to the arrangement of the protruding part on the cover plate body, so that the deformation resistance of the position of the cover plate terminal is improved. In addition, through set up the welding recess on the apron body for binding post is in the welding process, and the lateral wall of welding recess can play the constraint effect to the molten tin that uses when the butt joint, prevents molten tin to apron surface overflow, makes molten tin concentrate in the recess, increases welding strength, promotes electrical connection's stability. Meanwhile, the risk that tin liquid overflows the end face of the cover plate can be reduced.

Inventors

• XIONG WEI
• WANG PAN
• ZHU JINXIN
• SHAO TAO

Assignees

• 胜业电气股份有限公司

Dates

Publication Date

20260512

Application Date

20250430

Claims (10)

1. 1. The capacitor cover plate is characterized by comprising a cover plate body and a wiring terminal, wherein a protruding part is arranged on the cover plate body, a welding groove is formed in the protruding part, the wiring terminal is provided with a welding section, the welding section is welded to the welding groove, and the periphery of the welding section is surrounded by the side wall of the welding groove.
2. 2. The capacitor cover plate of claim 1, wherein the boss is further provided with a boss, and the welding groove is provided in the boss.
3. 3. The capacitor cover plate of claim 2, wherein the cover plate body is provided with at least one reinforcing rib, and at least one reinforcing rib is provided on the boss.
4. 4. A capacitor cover plate as claimed in claim 3, wherein said boss is provided with at least two welding grooves, said terminals are provided with at least two, and each two adjacent terminals are disposed at a distance and welded in said welding grooves respectively.
5. 5. The capacitor cover of claim 4 wherein at least one of said ribs is disposed between each adjacent two of said terminals.
6. 6. The capacitor cover plate of claim 1, wherein the wire connecting terminal is provided with a threading hole, the cover plate body is provided with a wire guide hole, the wire guide hole is arranged in the welding groove, and the threading hole is used for being communicated with the wire guide hole after the wire connecting terminal is installed in the welding groove.
7. 7. The capacitor cover plate of any one of claims 1-6, wherein the cover plate body is further provided with a liquid injection hole, and the liquid injection hole penetrates through the cover plate body.
8. 8. The capacitor cover plate of claim 7, wherein the cover plate body is provided with a liquid guide column, the liquid guide column is convexly arranged on the cover plate body, and the liquid injection hole is arranged on the liquid guide column and penetrates through the liquid guide column.
9. 9. The capacitor cover plate of claim 8, wherein a shielding ring is arranged at the top end of the liquid guiding column, extends along the periphery of the liquid guiding column, and surrounds the periphery of the liquid injection hole.
10. 10. A capacitor comprising a housing, an electrode core disposed within the housing, and a capacitor cover as claimed in any one of claims 1 to 9 for closing the housing.

Description

Capacitor cover plate and capacitor Technical Field The utility model relates to the technical field of capacitors, in particular to a capacitor cover plate and a capacitor. Background At present, most of the capacitors on the market adopt low-voltage cover plate designs, the design standard in terms of structural strength and stability is generally required according to low-voltage environment, the tolerance capability of the capacitors to external force impact, thermal stress and other conditions possibly occurring is limited, and the capacitors are easy to deform when being applied to scenes with higher requirements or facing some special stresses in the manufacturing and explosion-proof processes, so that the application range of the capacitors is limited. In addition, the end of the terminal for connection to the cover plate is generally not treated at all, so that during soldering, molten tin may overflow to the surface of the cover plate, which not only seriously weakens the soldering strength, but also adversely affects the appearance of the product. Disclosure of utility model In order to overcome at least one of the drawbacks of the prior art, an object of the present utility model is to provide a capacitor cover plate, which can enhance the structural strength of the whole cover plate and effectively reduce the deformation probability by providing a protruding portion. Meanwhile, the welding grooves are formed in the protruding portions and used for welding the connecting terminals, and the risk that tin liquid overflows to the surface of the cover plate can be reduced. The second purpose of the utility model is to provide a capacitor, wherein the strength of the cover plate of the capacitor is increased, the probability of deformation in the subsequent use process is reduced, and meanwhile, the welding strength of the wiring terminal is high, so that the reliability of electrical connection is improved. One of the purposes of the utility model is to adopt the following technical scheme: The capacitor cover plate comprises a cover plate body and a wiring terminal, wherein a protruding portion is arranged on the cover plate body, a welding groove is formed in the protruding portion, the wiring terminal is provided with a welding section, the welding section is welded to the welding groove, and the periphery of the welding section is surrounded on the side wall of the welding groove. Further, a boss is further arranged on the protruding portion, and the welding groove is formed in the boss. Further, at least one reinforcing rib is arranged on the cover plate body, and at least one reinforcing rib is arranged on the boss. Further, at least two welding grooves are formed in the boss, at least two connecting terminals are arranged, every two adjacent connecting terminals are arranged at intervals, and the connecting terminals are respectively welded in the welding grooves. Further, at least one reinforcing rib is arranged between every two adjacent connecting terminals. Further, the wiring terminal is provided with a threading hole, the cover plate body is provided with a wire guide hole, the wire guide hole is arranged in the welding groove, and the threading hole is used for being communicated with the wire guide hole after the wiring terminal is mounted in the welding groove. Further, the cover plate body is further provided with a liquid injection hole, and the liquid injection hole penetrates through the cover plate body. Further, the cover plate body is provided with a liquid guide column, the liquid guide column is convexly arranged on the cover plate body, and the liquid injection hole is arranged on the liquid guide column and penetrates through the liquid guide column. Further, the top end of the liquid guiding column is provided with a shielding ring, and the shielding ring extends along the periphery of the liquid guiding column and surrounds the periphery of the liquid injection hole. The second technical proposal adopted by the utility model is as follows: The capacitor comprises a shell, an electrode core and a capacitor cover plate, wherein the electrode core is arranged in the shell, and the capacitor cover plate is used for sealing the shell. In summary, the capacitor cover plate and the capacitor provided by the utility model have the following technical effects: When the cover plate is used, due to the arrangement of the protruding part on the cover plate body, the deformation resistance of the cover plate is improved, so that the electrode core inside the shell is better protected, the occurrence probability of faults such as internal short circuit and circuit breaking caused by deformation of the cover plate is reduced, and the use is safer. In addition, through set up the welding recess on the apron body for binding post is in the welding process, and the lateral wall of welding recess can play the constraint effect to the molten tin that uses when the butt joint, prevents molte