CN204792461U

CN204792461U - Single lid type cylindricality farad electric capacity

Info

Publication number: CN204792461U
Application number: CN201520428018.1U
Authority: CN
Inventors: 周俊瑶
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-06-21
Filing date: 2015-06-21
Publication date: 2015-11-18
Anticipated expiration: 2025-06-21

Abstract

The utility model belongs to the technical field of the electron, a single lid type cylindricality farad electric capacity is disclosed, including casing, core, mass flow board, end cover, anodal mass flow board and negative pole mass flow board respectively with core both ends welding, negative pole mass flow board is electric the connection bottom the casing, its characterized in that, the end cover is connected with the casing electricity, is equipped with negative terminal and positive terminal pilot hole on the end cover, in the positive terminal pilot hole of positive terminal assembly on the end cover, is equipped with the insulating seal circle between positive terminal and the end cover, the end cover inboard is equipped with a conductively connected parts, be equipped with the insulating blanket between conductively connected parts and the end cover, conductively connected parts is connected with the inner electricity of positive terminal, and conductively connected parts passes through screw thread fit connection with anodal mass flow board. The utility model discloses a farad electric capacity internal resistance reliability little, that connect is high.

Description

A kind of single cap-type cylindricality farad capacitor

Technical field

The utility model belongs to electronic technology field, relates to a kind of capacitor, more particularly, relates to a kind of farad capacitor.

Background technology

Farad capacitor is also super capacitor, belongs to double electric layer capacitor, and it is the one that in the double electric layer capacitor having dropped into volume production in the world, capacity is maximum, and its general principle is the same with the double electric layer capacitor of other kind.General capacity is Large Copacity farad capacitor many employings cylindrical shape of 100-5000F, and cylindrical or square column type all has.

Primarily of compositions such as tubular shell, core body, end caps in common cylindricality farad capacitor structure, core body is reeled by two-layer electrode layer and is formed, and two ends are welded with anode collection plate, negative pole currect collecting plate respectively.Collector plate and end cap or binding post are electrically connected.

The farad capacitor of single-end cap-type, two binding posts are positioned at same one end, and existing single cap-type farad capacitor is generally that positive terminal welds with anode collection plate or contact is electrically connected.This syndeton mainly has problems: 1, welding procedure is complicated, and cost is high; 2, welding process requirement is high, easily produces the unreliable factors such as rosin joint, is directed at internal resistance and increases.

Summary of the invention

The problem of the aspects such as the purpose of this utility model is, the connection reliability existed for existing single cap-type farad capacitor is low, internal resistance is large, provides a kind of internal resistance less and connects reliable farad capacitor structure.

For achieving the above object, the utility model proposes a kind of single cap-type cylindricality farad capacitor, comprise housing, core body, collector plate, end cap, anode collection plate and negative pole currect collecting plate weld with core body two ends respectively, and negative pole currect collecting plate is electrically connected with housing bottom, it is characterized in that, described end cap is electrically connected with housing, end cap is provided with negative terminal and positive terminal pilot hole, and positive terminal is assemblied in the positive terminal pilot hole on end cap, is provided with insulated enclosure circle between positive terminal and end cap; Be provided with a conducting connecting part inside end cap, be provided with insulating blanket between described conducting connecting part and end cap, conducting connecting part is electrically connected with positive terminal the inner, and conducting connecting part is connected by threaded engagement with anode collection plate.

Particularly, connect edge and be provided with connection ring structure, be provided with internal thread inside connecting ring outside described collector plate along collector plate, the periphery of conducting connecting part is provided with the external screw thread with the screw-internal thread fit on collector plate connecting ring.

Screw connection structure between this collector plate and conducting connecting part, can ensure on the one hand the reliability connected, and contacts with each other the contact area considerably increased between collector plate and conducting connecting part on the other hand between ridge, effectively reduces internal resistance.

Further, after described conducting connecting part is threaded with collector plate, conducting connecting part medial surface is electrically connected with collector plate lateral surface contact.To reduce internal resistance further.

Further, described connecting ring is provided with radial direction top thread hole, and top lock screw screws in top wire hole and conducting connecting part holds out against.Conducting connecting part and collector plate are locked.

End cap can be selected to weld with the connection of housing, also can select the mode that punching press is sealed, and when adopting the mode of punching press sealing, needs to arrange sealing ring between end cap and housing.

Accompanying drawing explanation

Fig. 1 is a kind of instantiation structural representation of single cap-type cylindricality farad capacitor described in the utility model.

Fig. 2 is end cap vertical view in farad capacitor shown in Fig. 1.

Fig. 3 is conducting connecting part profile in farad capacitor shown in Fig. 1.

Fig. 4 is conducting connecting part vertical view in farad capacitor shown in Fig. 1.

Fig. 5 is collector plate profile in farad capacitor shown in Fig. 1.

Fig. 6 is collector plate vertical view in farad capacitor shown in Fig. 1.

Fig. 7 is the another kind of instantiation structural representation of single cap-type cylindricality farad capacitor described in the utility model.

Embodiment

With reference to Fig. 1-6, cylindricality farad capacitor described in the utility model can be cylindrical, as Fig. 1-, also can be square column type, as shown in Figure 5.

For cylindrical, comprise housing 5, core body 6, two collector plate 4,7, conducting connecting part 11, end cap 9, two binding posts 1,8, core body is arranged on enclosure interior, core diameter and housing inner diameter close.Anode collection plate 4 and negative pole currect collecting plate 7 weld with core body two ends respectively.Housing is semiclosed tubular, and negative pole currect collecting plate 7 welds with housing bottom or contact is electrically connected; The mode that end cap and housing adopt punching press to seal is connected and fixed, housing is provided with the concave ring structure 12 for sealing near end, the edge of housing is inwardly turned back by the mode of punching press, is fixed by end cap together with concave ring structure 12, is provided with sealing ring 3 between end cap and housing.

End cap lateral surface is provided with a negative terminal 8 and a pilot hole 13, and positive terminal 1 is assemblied in pilot hole 13, establishes insulated enclosure circle 2 between positive terminal 1 and end cap.Positive terminal 1 the inner connects conducting connecting part 11, and establish connecting ring 14 outside anode collection plate, connecting ring 14 inside is provided with internal thread 16, and the periphery of conducting connecting part 11 establishes external screw thread 17, and connecting ring internal thread coordinates with conducting connecting part external screw thread.The connecting ring 14 of anode collection plate is provided with top wire hole 15.After conducting connecting part and anode collection plate are threaded connection, in top wire hole, screw in top lock screw, conducting connecting part and anode collection plate are locked.

Positive terminal and be fixed to rare two kinds of optional modes between conducting connecting part and end cap.Wherein one is: conducting connecting part and positive terminal one is connected, and positive terminal is provided with external screw thread, positive terminal is set with clamp nut and end cap is fixed.Need between clamp nut and end cap to establish insulation cushion.

Another kind is: on positive terminal, be provided with convex edge, replace the clamp nut in first kind of way with convex edge, when adopting this structure, positive terminal and conducting connecting part can not be one-body molded again, optionally, positive terminal is inner rivets with conducting connecting part or is threaded.Similarly, the convex edge on binding post and and end cap between also to establish insulation cushion.

With reference to Fig. 7, structure shown in this figure and Fig. 1 distinguish and are, adopt the mode of welding to fix between end cap with housing.No longer need between end cap and housing to arrange sealing ring.

Claims

1. a single cap-type cylindricality farad capacitor, comprise housing, core body, collector plate, end cap, anode collection plate and negative pole currect collecting plate weld with core body two ends respectively, negative pole currect collecting plate is electrically connected with housing bottom, it is characterized in that, described end cap is electrically connected with housing, and end cap is provided with negative terminal and positive terminal pilot hole, positive terminal is assemblied in the positive terminal pilot hole on end cap, is provided with insulated enclosure circle between positive terminal and end cap; Be provided with a conducting connecting part inside end cap, be provided with insulating blanket between described conducting connecting part and end cap, conducting connecting part is electrically connected with positive terminal the inner, and conducting connecting part is connected by threaded engagement with anode collection plate.

2. single cap-type cylindricality farad capacitor according to claim 1, it is characterized in that, connect edge along collector plate outside described collector plate and be provided with connection ring structure, be provided with internal thread inside connecting ring, the periphery of conducting connecting part is provided with the external screw thread with the screw-internal thread fit on collector plate connecting ring.

3. single cap-type cylindricality farad capacitor according to claim 2, is characterized in that, after described conducting connecting part is threaded with collector plate, conducting connecting part medial surface is electrically connected with collector plate lateral surface contact.

4. single cap-type cylindricality farad capacitor according to claim 2, it is characterized in that, described connecting ring is provided with radial direction top thread hole, and top lock screw screws in top wire hole and conducting connecting part holds out against.

5. single cap-type cylindricality farad capacitor according to claim 1, it is characterized in that, end cap is connected by the mode of welding with housing.

6. single cap-type cylindricality farad capacitor according to claim 1, it is characterized in that, the mode that end cap adopts punching press to seal with housing is connected, and is provided with sealing ring between end cap and housing.