CN211350124U - Busbar for capacitor - Google Patents

Abstract

The utility model provides a condenser is with arranging female arranging, including female body, at least one leading-out terminal of arranging, its characterized in that: the bus bar body is composed of at least one metal wire layer, each metal wire layer is composed of at least two metal wires, and the metal wires are connected through connecting wires; the leading-out terminal is connected with the metal wire layer. The utility model provides a current condenser easily produce the skin effect with female row under the high frequency application condition, the great problem of self-inductance volume under the high frequency condition.

Description

Busbar for capacitor

Technical Field

The utility model relates to a female arranging of condenser internal connection and leading-out terminal extraction technical field especially relate to a condenser is with female arranging.

Background

One of the bus bar and leading-out terminal leading-out structures internally connected with the existing capacitor is formed by integrally stamping and bending a copper plate 3 with the thickness of 1-3mm as shown in figure 1. When the capacitor core is applied, the capacitor core is directly welded or welded on the copper bar through a lead/copper foil. But the existing busbar has the following defects: 1) the skin effect is easy to generate under the high-frequency application condition; 2) the self-inductance under high frequency is large.

In addition, the existing processing die for the busbar is complex and very high in cost, large-tonnage stamping equipment (more than 80T) is required for processing the copper bar, and the processing cost is high.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a condenser is with female arranging mainly solves the problem one that exists among the above-mentioned prior art: the existing bus bar for the capacitor is easy to generate skin effect under the high-frequency application condition and has larger self-inductance under the high-frequency condition; the second problem is that the conventional capacitor busbar has the problems of complex processing die and high cost, and the provided capacitor busbar is provided.

In order to realize the purpose, the utility model discloses the technical scheme who adopts is: the utility model provides a condenser is with arranging, is arranged body, at least one leading-out terminal including female, its characterized in that: the bus bar body is composed of at least one metal wire layer, each metal wire layer is composed of at least two metal wires, and the metal wires are connected through connecting wires; the leading-out terminal is connected with the metal wire layer.

Further, at least two metal wires of each metal wire layer are arranged in parallel; the connecting wires and the metal wires are in mutually perpendicular directions or form included angles.

Furthermore, gaps are arranged between the metal wires in each metal wire layer.

Furthermore, each metal wire layer comprises at least two groups of metal wire groups formed by at least four metal wires, each metal wire group is formed by tightly connecting at least two metal wires, and a gap is arranged between every two adjacent metal wire groups.

Further, the cross-sectional area of the metal wire ranges from 0.2 mm to 20 mm; the cross-sectional area of the connecting wire is 0.2 mm to 20 mm.

Furthermore, the lower end of the leading-out terminal is provided with a welding leg.

Further, the busbar body is composed of a metal wire layer, and the leading-out terminal is connected with the metal wire layer.

Further, the busbar body is formed by sequentially connecting more than two metal conductor layers in an up-down overlapping manner, and adjacent metal conductor layers are connected through a connecting conductor.

Furthermore, the metal wire layer is also provided with a through hole.

In view of the above technical features, the utility model discloses following beneficial effect has:

1. the utility model discloses in a condenser is with female arranging, provide a condenser inside female connection and the terminal extraction structural style of arranging, the utility model discloses a product is compared with current product, has following advantage: 1) the terminal stamping processing die is simple, high-speed stamping can be realized, and the die and processing cost is low; 2) the processing terminal stamping equipment is general equipment (below 80T), so that the processing cost is low; 3) the skin effect is low and negligible under the high-frequency application condition; 4) self-inductance volume is less under the high frequency condition, avoids the utility model discloses a condenser is with female row serious (self-inductance volume is big more under the high frequency condition promptly, generates heat more seriously), influences the product result of use.

2. The utility model discloses a condenser is with arranging female arranging, by the parallel metal conductor layer of arranging the female body that arranges that forms of a plurality of metal conductors, compare the copper bar among the prior art, still more save material, the surface area is bigger, the advantage that weight is lighter.

Drawings

Fig. 1 is a schematic structural diagram of a busbar for a capacitor in the prior art.

Fig. 2 is a schematic structural diagram of a busbar for a capacitor in embodiment 1.

Fig. 3 is a schematic structural view of a lead terminal in embodiment 1.

Fig. 4 is a schematic structural diagram of a busbar for a capacitor in embodiment 2.

In the figure: 1 is a busbar body; 11 is a metal wire; 12 is a connecting lead; 13 is a through hole; 2 is a leading-out terminal; 21 is a welding leg; 22 is a fixed mounting hole; and 3, a copper plate of a busbar for the conventional capacitor.

Detailed Description

The present invention will be further described with reference to the following detailed description. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes and modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope of the appended claims.

Referring to fig. 2 to 3, in embodiment 1, a busbar for a capacitor includes a busbar body 1 and at least one leading-out terminal 2, and is characterized in that: the bus bar body 1 is composed of at least one metal wire layer, each metal wire layer is composed of at least two metal wires 11, and the metal wires 11 are connected through connecting wires 12; the leading-out terminal 2 is connected with the metal wire layer.

The metal wires 11 are connected by connecting wires 12, for example, the metal wires 11 and the connecting wires 12 are connected by welding including, but not limited to, spot welding, soldering, resistance welding, and riveting. The connecting wires 12 are used for connecting the metal wires 11 together, and the connecting wires 12 and the metal wires 11 have the function of current flowing.

At least two metal wires 11 of each metal wire layer are arranged in parallel, and the parallel arrangement can form a plane metal wire layer and also can form a three-dimensional metal wire layer, such as a metal wire layer with a U-shaped section; connecting wire 12 and metal wire 11 are mutually perpendicular direction or are the contained angle, are convenient for connecting wire 12 and connect fixedly to metal wire 11 for each metal wire 11 can form firm metal wire layer shape.

The leading-out terminal 2 can be connected with the metal wire layer in a welding and/or riveting mode, can be connected to the peripheral edge part of the metal wire layer, can also be connected to the upward surface of the metal wire layer, and can also be connected to the downward surface of the metal wire layer.

According to the structure and the requirement of the capacitor and the busbar product, the leading-out terminals 2 can be one, two or more, and can be uniformly distributed on the metal wire layer or non-uniformly distributed on the metal wire layer.

The cross section of the metal wire 11 is circular, oval or square, and the cross section of the connecting wire 12 is circular, oval or square, which can be selected according to actual conditions.

And a gap is arranged between the metal wire 11 and the metal wire 11 in each metal wire layer. Alternatively, each metal wire layer comprises at least two groups of metal wire groups formed by at least four metal wires 11, each metal wire group is formed by tightly connecting at least two metal wires 11, and a gap is formed between adjacent metal wire groups. The design in clearance can effectively reduce the skin effect of the metal to the electric current on the line layer, has reduced the product simultaneously and has been reduced the equivalent series inductance of female arranging for the condenser promptly. A gap is formed between the metal wire 11 and the metal wire 11, and compared with the gap formed between adjacent metal wire groups, the effect of reducing the skin effect of current is better, and the effect of reducing the equivalent series inductance of a product is better; and gaps are arranged between adjacent metal lead groups, so that compared with the gaps arranged between the metal leads 11 and the metal leads 11, the processing efficiency is higher, and the space utilization is reasonable.

Preferably, the cross-sectional area of the metal wire 11 ranges from 0.2 mm to 20 mm; the cross-sectional area of the connecting wire 12 is 0.2 mm to 20 mm. The metal wire 11 and the connecting wire 12 within the cross-sectional area range can meet the requirements of the capacitor on current circulation and current flow, and simultaneously can reduce the volume and weight of the metal wire 11 and the connecting wire 12 as much as possible, and save the materials of the metal wire 11 and the connecting wire 12.

The lower end of the leading-out terminal 2 is provided with a welding foot 21, as shown in fig. 3, the welding foot 21 is convenient for assembling the leading-out terminal 2 with the busbar body 1 in a soldering/resistance welding/riveting mode or the like, and each layer of metal wire layer of the busbar body 1 can be assembled together. According to the product structure, the solder tails 21 can be arranged in different forms, such as a single solder tail, two solder tails or a plurality of solder tails, or the busbar body 1 can also be the same side or different sides of each metal wire layer of the busbar body 1, and the like.

According to the capacitor and the busbar product structure and requirements, the upper end of the leading-out terminal 2 can be provided with a fixed mounting hole 22 or a mounting stud, and the fixed mounting hole 22 can also be provided with a fixed nut, so that the capacitor is indirectly fixed on a specified position by connecting and fixing the leading-out terminal 2.

In this embodiment 1, female body 1 of arranging comprises one deck metal wire layer, leading-out terminal 2 is four, four leading-out terminal 2 unevenly distribute and connect on metal wire layer, and every leading-out terminal 2 is actually three leg through leg 21 promptly, and the both sides of branch leading-out terminal 2, leading-out terminal one side are equipped with a leg 21, and the opposite side is equipped with two legs 21, and it is fixed to form the triangle, carries out fixed connection in metal wire layer one side up with leading-out terminal 2 and metal wire layer more firmly, is equipped with fixed mounting hole 22 on every leading-out terminal 2.

In the production process of the busbar, the metal lead 11 and the connecting lead 12 can be cut in advance according to the required length, and the metal lead 11 and the connecting lead 12 are welded together by soldering, resistance welding and other welding modes to form the busbar body 1; the metal wires 11 are parallel to each other, a small gap exists between every two wires or a group of wires, a small gap exists between every two adjacent groups, and the connecting wires 12 and the metal wires 11 are perpendicular to each other or form an included angle. And then the leading-out terminal 2 is assembled on the busbar body 1 by modes of tin soldering, resistance welding, riveting and the like according to specific requirements to form the busbar for the capacitor.

Referring to fig. 4, embodiment 2 is substantially the same as embodiment 1 except that: the metal conductor layer is also provided with a through hole 13.

When the leading-out terminal 2 is connected to the metal wire layer facing downwards, the through hole 13 is arranged at the corresponding position of the metal wire layer of the busbar body 1 so as to lead out or penetrate out the leading-out terminal 2 conveniently, and various requirements of different capacitors on busbar products are met.

When the busbars are combined and applied in pairs, when the leading-out terminal 2 of one busbar interferes with the other busbar body 1, the corresponding through hole 13 can be arranged on the busbar body 1 with the interference busbar so as to facilitate the superposition of the busbar bodies 1 and meet various requirements of different capacitors on busbar products.

The through holes 13 for leading the leading-out terminals of other busbars can be selectively arranged between the adjacent leading-out terminals 2, when the leading-out terminals of other busbars are led through by the through holes 13, namely two busbars are combined, the leading-out terminals of other busbars can be conveniently led out by the through holes 13, gaps exist between the inner walls of the through holes 13 and the leading-out terminals of other busbars, and the gaps are convenient for infiltration of potting materials which are generally insulating materials when the capacitor is produced, so that the through holes 13 are prevented from being communicated with the leading-out terminals of other busbars.

Alternatively, the lead terminal 2 may be directly fixed and connected to the upward surface of the metal wire layer.

Embodiment 3, and embodiment 3 are substantially the same as embodiment 1, except that: the bus bar body 1 is formed by sequentially connecting more than two metal conductor layers in an up-and-down overlapping manner, adjacent metal conductor layers are connected through a connecting conductor, and the uppermost metal conductor layer is provided with a leading-out terminal 2. The connecting wires between the adjacent metal wire layers can be connected and fixed or combined together in a soldering/resistance welding/riveting mode, and the areas without soldering/resistance welding/riveting and the like between the adjacent metal wire layers can also be provided with insulating materials, so that the upper and lower adjacent metal wire layers are locally isolated to effectively reduce the skin effect of current and the equivalent series inductance. In this embodiment 3, two or three layers may be selected as an example.

The three schemes can be selected and designed according to the requirement of an actual capacitor on the busbar structure and the current flow, the multilayer metal wire layer-by-layer design can increase the current flow of the busbar body 1 according to the requirement, meanwhile, the space arrangement of the metal wire layer can be more reasonably arranged, and the limited space in the capacitor is better utilized.

The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings, or directly or indirectly applied to other related technical fields, are included in the same way in the protection scope of the present invention.

Claims (9)

1. The utility model provides a condenser is with arranging, arranges body (1), at least one leading-out terminal (2) including female, its characterized in that: the bus bar body (1) is composed of at least one metal wire layer, each metal wire layer is composed of at least two metal wires (11) in an arrangement mode, and the metal wires (11) are connected through connecting wires (12); the leading-out terminal (2) is connected with the metal conducting layer.

2. The busbar according to claim 1, wherein: at least two metal wires (11) of each metal wire layer are arranged in parallel; the connecting lead (12) and the metal lead (11) are in mutually perpendicular directions or form an included angle.

3. The busbar according to claim 2, wherein: gaps are arranged between the metal leads (11) in each metal lead layer and the metal leads (11).

4. The busbar according to claim 2, wherein: at least two groups of metal lead groups formed by at least four metal leads (11) in each metal lead layer are arranged, each metal lead group is formed by tightly connecting at least two metal leads (11), and a gap is arranged between every two adjacent metal lead groups.

5. The busbar according to claim 3 or 4, wherein: the cross-sectional area of the metal wire (11) ranges from 0.2 square millimeter to 20 square millimeters; the cross-sectional area of the connecting lead (12) is 0.2 mm to 20 mm.

6. The busbar according to claim 5, wherein: and the lower end of the leading-out terminal (2) is provided with a welding leg (21).

7. The busbar according to claim 6, wherein: the bus bar body (1) is composed of a metal wire layer, and the leading-out terminal (2) is connected with the metal wire layer.

8. The busbar according to claim 6, wherein: the busbar body (1) is formed by sequentially connecting more than two metal conductor layers in an up-down overlapping manner, and the adjacent metal conductor layers are connected through a connecting conductor.

9. The busbar according to claim 7 or 8, wherein: the metal wire layer is also provided with a through hole (13).

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