CN218849279U

CN218849279U - Welded structure and welded structure of capacitor spare part

Info

Publication number: CN218849279U
Application number: CN202220533174.4U
Authority: CN
Inventors: 王汝文; 胡忠胜; 华玲萍; 毛彬彬; 裘伟
Original assignee: Anhui Feida Electrical Technology Co ltd
Current assignee: Anhui Feida Electrical Technology Co ltd
Priority date: 2022-03-11
Filing date: 2022-03-11
Publication date: 2023-04-11
Anticipated expiration: 2032-03-11

Abstract

The utility model discloses a welded structure and capacitor parts's welded structure, include: the welding part is welded on a metal welding surface of the second electric connecting piece, and the welding part is distributed flatly relative to the metal welding surface. The utility model discloses in through the setting that the weld part extended evenly for the metal face of weld and distributed the area of contact between weld part and the metal face of weld has increased the welding strength between weld part and the metal face of weld.

Description

Welded structure and welded structure of capacitor spare part

Technical Field

The utility model relates to the field of welding technique, especially, relate to a welded structure and capacitor parts's welded structure.

Background

The capacitor is one of electronic elements widely used in electronic equipment, and is widely applied to aspects of blocking AC, coupling, bypassing, filtering, tuning loop, energy conversion, control and the like in a circuit. The capacitor lead is a component for conducting current in a capacitor, as shown in fig. 1, a circular lead a is generally adopted as a capacitor lead in the prior art, and when the circular lead a is welded on the end face of a core b, due to the fact that line contact is formed between the circular lead a and the end face of the core b, the welding of the circular lead a and the core b is not firm, so that the current conducting capability and reliability are affected, and the loss of the lead is easily caused.

SUMMERY OF THE UTILITY MODEL

For the technical problem who exists among the solution background art, the utility model provides a welded structure and capacitor spare part's welded structure.

The utility model provides a pair of welded structure, include: the welding part is welded on the metal welding surface of the second electric connector, and the welding part is distributed in a spread mode relative to the metal welding surface.

Preferably, the soldering part is used for soldering a conductor on the first electric connector, and the free ends of one or more guide wires of the conductor are covered by the soldering part.

Preferably, when the conductor has a plurality of wires, the free ends of the plurality of wires have a plurality of projecting orientations.

Preferably, the conductor is used for leading out one electrode of the capacitor film, the metal welding surface is one surface of the conductive sheet, and the conductive sheet is fixed on the capacitor cover plate.

Preferably, the solder in the molten state, together with the free end of the conductor enclosed therein, is pressed flat against the metal soldering surface, solidifying the formed solder.

Preferably, the solder in a molten state is formed by spontaneous heating and melting a pre-soldering layer pre-solidified on the conductor.

Preferably, the pre-soldering layer is solidified by molten solder attached to the conductor.

Preferably, the two electrodes for contacting the pre-welded layer are arranged on a pressure plate for synchronously pressing the pre-welded layer and the conductor.

Preferably, the pressure plate has a horizontal press-fit surface thereon for flattening the melted pre-welded layer and the free end of the conductor, the horizontal press-fit surface smoothly transitioning with a vertical surface of the pressure plate.

The utility model also provides a welded structure of condenser spare part, include: a conductor, a conductive sheet and a weld formed by one or more wires;

the welding part is welded on the metal welding surface of the conductive sheet and is distributed in an extending and flat mode relative to the metal welding surface;

the welding part is welded on the free end of the conductor, and the free ends of one or more guide wires of the conductor are all covered by the welding part.

Preferably, when the conductor has a plurality of guide wires, the free ends of the plurality of guide wires have a plurality of projecting orientations.

Preferably, the conductor is used for leading out one electrode of the capacitor film, and the conductive sheet is fixed on the capacitor cover plate

The utility model discloses in, the welded structure of welded structure and capacitor spare part that provides has increased the area of contact between weld part and the metal face of weld for the setting of metal face of weld that the even distribution was prolonged, has promoted the welding strength between weld part and the metal face of weld.

Drawings

FIG. 1 is a schematic diagram of the soldering of leads and a core of a prior art capacitor.

Fig. 2 is a schematic structural diagram of a conductor according to the present invention.

Fig. 3 is a schematic view of the manufacturing process of the welding structure according to the present invention.

Fig. 4 is a schematic structural diagram of a welding structure according to the present invention.

Fig. 5 is a schematic structural diagram of a welding structure of a capacitor according to the present invention.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Referring to fig. 4, the utility model provides a welded structure, include: the welding part 2 is welded on a metal welding surface 3 of the second electric connector, and the welding part 2 is distributed in a flat way relative to the metal welding surface 3.

The utility model provides a weld part 2 prolongs even distribution for metal weld face 3, has increased the area of contact between weld part 2 and the metal weld face 3, has promoted the welding strength between weld part 2 and the metal weld face 3.

In order to increase the area of the free ends between the soldering part 2 and the wires 11 of the conductor, and thus avoid cold or no soldering, in a further embodiment the soldering part 2 is soldered to the conductor 1 on the first electrical connector, the conductor 1 having one or more of the wires 11 with their free ends covered by the soldering part 2.

Wherein, when the conductor has a plurality of guide wires 11, the free ends of the plurality of guide wires 11 have a plurality of protruding orientations. With the arrangement, the contact area of the welding part 2 and the free ends of the guide wires 11 of the conductor 1 can be further increased, so that the effective welding area between the free ends of the guide wires 11 and the metal welding surface 3 is maximized, cold joint or no welding is further avoided, and the welding strength is greatly improved.

In this embodiment, the conductor 1 is used for leading out one electrode of the capacitor film, and the metal bonding surface 3 is one surface of a conductive sheet fixed to the capacitor cover.

In the present embodiment, the solder in the molten state, together with the free end of the conductor 1 enclosed therein, is pressed flat against the metal soldering surface 3 and, after solidification, forms the soldering portion 2.

By the arrangement, the contact area between the first electric connecting piece and the second electric connecting piece can be maximized, the resistance of the welding part 2 is minimum, and potential safety hazards caused by overheating of the welding part 2 in the using process can be prevented; moreover, the effective welding area between the first electric connecting piece and the second electric connecting piece can be maximized, cold joint and no welding are avoided, and the welding strength is greatly improved.

In order to facilitate the obtainment of the solder in a molten state, in a further embodiment, the solder in a molten state is formed by spontaneous heating melting of a pre-soldering layer pre-solidified on the conductor 1.

To facilitate the formation of the solder part 2, in a further embodiment the pre-solder layer is formed by solidifying the molten solder to which the conductor 1 is attached.

In one embodiment, the free end of the conductor 1 is dipped into the molten solder and then removed, and the molten solder is attached to the free end of the conductor 1. Compared with the traditional process of directly welding the bunched conductor and the conductive sheet by using the welding wire, the process reduces the using amount of the welding flux, and the raw material cost of the product produced by using the process method is also reduced.

In the present embodiment, the two electrodes 5, which supply the pre-welded layer, are arranged on the pressure plate for synchronously pressing the pre-welded layer and the conductor 1.

Specifically, when two electrodes 5 simultaneously contact the pre-welding layer and supply power, the pre-welding layer melts as resistance self-heating, the pre-welding layer is cut off after melting, the pressing plate 4 synchronously flattens and solidifies the melted pre-welding layer and the free end of the conductor 1 on the conductive sheet, so that welding between the resistance and the conductive sheet is formed, because the conductor 1 is composed of a plurality of guide wires 11, in the process of synchronously flattening the pre-welding layer and the conductor 1, the conductor 1 composed of the plurality of guide wires 11 can also be dispersed by a beam shape under the action of pressure, the contact area between the conductor 1 and the conductive sheet is increased to the maximum extent, false welding or cold welding is avoided, and the welding strength is effectively improved.

In a further embodiment, the pressure plate 4 has a horizontal press-fit surface thereon for flattening the melted pre-welded layer and the free end of the conductor 1, the horizontal press-fit surface having a smooth transition to the vertical surface of the pressure plate 4. By the arrangement, the vertical surface of the pressure plate 4, such as a knife edge, can be prevented from cutting the conductor 1 in the process of flattening the conductor 1.

As shown in fig. 2-4, the process for preparing the welded structure comprises the following steps:

s1, putting the free end of a conductor 1 into molten solder for dip dyeing, taking out the free end of the conductor 1, namely attaching the molten solder to the free end of the conductor 1, and solidifying and molding the molten solder attached to the conductor 1 to form a pre-welding layer;

s2, placing the conductor 1 and the pre-welding layer on the metal welding surface 3;

s3, connecting the pre-welding layer on the conductor 1 with electricity to form a welding flux in a molten state through self-heating melting;

and S4, the molten solder and the free end of the conductor 1 coated in the molten solder are pressed on the metal welding surface 3 by the pressing plate 4, and the molten solder and the free end of the conductor 1 are solidified to form the welding part 2, so that the first electric connector and the second electric connector are welded.

Referring to fig. 5, the utility model also provides a welded structure of condenser spare part, include: a conductor 1 composed of one or more guide wires 11, a conductive sheet, and a welded portion 2;

the welding part 2 is used for welding the conductor 1 and the conductive sheet, the welding part 2 is welded on the metal welding surface 3 of the conductive sheet, and the welding part 2 is distributed in a spread way relative to the metal welding surface 3;

the welding part 2 is welded to the free end of the conductor 1, and the free ends of one or more wires 11 of the conductor 1 are covered by the welding part 2.

Wherein, when the conductor 1 has a plurality of guide wires 11, the free ends of the plurality of guide wires 11 of the conductor 1 have a plurality of protruding orientations.

So set up, not only increased the area of contact between welding part 2 and the metal face of weld 3, also increased welding part 2 and the free end area of contact of the many seal wires 11 of conductor 1, make the effective welding area maximize between the free end of many seal wires 11 and the metal face of weld 3, avoided rosin joint or solderless, promoted welding strength by a wide margin.

In a further embodiment, the conductor 1 is used for leading out an electrode of a capacitor film, and the conductive foil is fixed on the capacitor cover plate.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A welded structure, comprising: the welding part (2) is welded on a metal welding surface (3) of the second electric piece, and the welding part (2) is distributed in a flat way relative to the metal welding surface (3);

the welding part (2) is used for welding the conductor (1) on the first electric connector, the free ends of a plurality of guide wires (11) of the conductor (1) are covered by the welding part (2), and the free ends of the guide wires (11) have a plurality of extending directions.

2. A welded structure according to claim 1, characterized in that the conductor (1) is used for leading out one electrode of a capacitor film, and the metal welding face (3) is one surface of a conductive foil fixed to a capacitor cover plate.

3. A solder structure according to claim 1, characterized in that the solder in molten state together with the free end of the conductor (1) enclosed therein is pressed flat against the metallic soldering surface (3) and, after solidification, forms the soldering part (2).

4. A solder structure according to claim 3, characterized in that the solder in a molten state is formed by spontaneous heating of a pre-solder layer pre-solidified on the conductor (1).

5. Solder structure according to claim 4, characterized in that the pre-solder layer is solidified by molten solder to which the conductor (1) is attached.

6. A weld arrangement according to claim 5, characterized in that two electrodes (5) for energizing the pre-welded layer are arranged on the pressure plate (4) for simultaneous pressing of the pre-welded layer and the conductor (1).

7. Welding structure according to claim 6, characterized in that the pressure plate (4) has a horizontal pressing surface for flattening the melted pre-welded layer and the free end of the conductor (1), the horizontal pressing surface being in smooth transition with the vertical surface of the pressure plate (4).

8. A welded structure of a capacitor component, comprising: a conductor (1) composed of a plurality of wires (11), a conductive sheet, and a welding part (2);

the welding part (2) is used for welding the conductor (1) and the conductive sheet, the welding part (2) is welded on the metal welding surface (3) of the conductive sheet, and the welding part (2) is distributed in a flat way relative to the metal welding surface (3);

the welding part (2) is welded on the free end of the conductor (1), and the free ends of a plurality of guide wires (11) of the conductor (1) are all coated by the welding part (2);

the free ends of the plurality of guide wires (11) have a plurality of protruding orientations.

9. The welded structure of capacitor element as claimed in claim 8, wherein the conductor (1) is used for leading out one electrode of the capacitor film, and the conductive sheet is fixed to the capacitor cover.