CN114613600A - Welded structure and welded structure of capacitor spare part - Google Patents
Welded structure and welded structure of capacitor spare part Download PDFInfo
- Publication number
- CN114613600A CN114613600A CN202210242031.2A CN202210242031A CN114613600A CN 114613600 A CN114613600 A CN 114613600A CN 202210242031 A CN202210242031 A CN 202210242031A CN 114613600 A CN114613600 A CN 114613600A
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- Prior art keywords
- conductor
- welding
- welded
- solder
- welding part
- Prior art date
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Links
- 239000003990 capacitor Substances 0.000 title claims abstract description 28
- 238000003466 welding Methods 0.000 claims abstract description 86
- 238000004021 metal welding Methods 0.000 claims abstract description 26
- 239000004020 conductor Substances 0.000 claims description 65
- 229910000679 solder Inorganic materials 0.000 claims description 26
- 238000005476 soldering Methods 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 8
- 238000003825 pressing Methods 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 5
- 230000002269 spontaneous effect Effects 0.000 claims description 3
- 239000011888 foil Substances 0.000 claims description 2
- 238000007711 solidification Methods 0.000 claims description 2
- 230000008023 solidification Effects 0.000 claims description 2
- 230000007704 transition Effects 0.000 claims 1
- 239000002184 metal Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 2
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 2
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/228—Terminals
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/02—Soldered or welded connections
- H01R4/023—Soldered or welded connections between cables or wires and terminals
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
The invention discloses a welding structure and a welding structure of capacitor parts, comprising: 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. According to the invention, the contact area between the welding part and the metal welding surface is increased through the arrangement that the welding part is distributed in an extending manner relative to the metal welding surface, and the welding strength between the welding part and the metal welding surface is improved.
Description
Technical Field
The invention relates to the technical field of welding, in particular to a welding structure and a welding structure of capacitor parts.
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 used 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 a 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.
Disclosure of Invention
The invention provides a welding structure and a welding structure of capacitor parts and aims to solve the technical problems in the background technology.
The invention provides a welding structure, comprising: 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.
Preferably, the soldering part is used for soldering the 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 of a pre-solder layer pre-solidified on the conductor by an electric heater.
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 invention also provides a welding structure of the capacitor part, which comprises the following components: 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
According to the welding structure and the welding structure of the capacitor parts, the contact area between the welding part and the metal welding surface is increased through the arrangement that the welding part is distributed in an extending mode relative to the metal welding surface, and the welding strength between the welding part and the metal welding surface is improved.
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 view of a conductor in the present invention.
Fig. 3 is a schematic diagram of the preparation 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 embodiments with reference to the attached drawings.
Referring to fig. 4, the present invention provides a welding structure, including: 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 spread mode relative to the metal welding surface 3.
The welding part 2 is distributed in a spread mode relative to the metal welding surface 3, so that the contact area between the welding part 2 and the metal welding surface 3 is increased, and the welding strength between the welding part 2 and the metal welding surface 3 is improved.
In order to increase the area of the free end between the soldering part 2 and the wire 11 of the conductor, thereby avoiding 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 free ends of the wire 11 covered by the soldering part 2.
Wherein, when the conductor has a plurality of wires 11, the free ends of the plurality of wires 11 have a plurality of protruding orientations. So set up, weld part 2 can further increase the area of contact with the free end of many seal wires 11 of conductor 1, makes the effective welding area maximize between the free end of many seal wires 11 and metal weld face 3, has further avoided the rosin joint or has not welded, has promoted welding strength by a wide margin.
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 soldering portion 2, in a further embodiment, the pre-soldering 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, two electrodes 5 for energizing 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 smoothly transitioning with the vertical surface of the pressure plate 4. By the arrangement, the vertical surface of the pressing 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 welded structure is prepared by the following steps:
s1, putting the free end of the conductor 1 into the molten solder for dip dyeing, taking out, 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, electrifying the pre-welding layer on the conductor 1 to form a solder in a molten state by self-heating and melting;
and S4, flattening the solder in the molten state together with the free end of the conductor 1 coated in the solder on the metal welding surface 3 by using the pressing plate 4, solidifying the solder to form the welding part 2, and completing the welding of the first electric connector and the second electric connector.
Referring to fig. 5, the present invention also provides a welding structure of capacitor parts, including: 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 ends of the conductors 1, and the free ends of one or more wires 11 of the conductors 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 description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. A welded structure, comprising: 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 spread mode relative to the metal welding surface (3).
2. Welding structure according to claim 1, characterized in that the welding part (2) welds the conductor (1) on the first electrical connection, the conductor (1) having one or more wires (11) with free ends which are covered by the welding part (2);
preferably, when the conductor has a plurality of guide wires (11), the free ends of the plurality of guide wires (11) have a plurality of projecting orientations.
3. A welded structure according to claim 2, characterized in that the conductor (1) is used for leading out one electrode of a capacitor film, and the metallic weld face (3) is one surface of a conductive foil fixed to a capacitor cover plate.
4. Solder structure according to claim 2, 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).
5. Solder structure according to claim 4, characterized in that the solder in the molten state is formed by spontaneous heating of a pre-solder layer pre-solidified on the conductor (1).
6. Solder structure according to claim 5, characterized in that the pre-solder layer is solidified by the molten solder to which the conductor (1) is attached.
7. Welding structure according to claim 6, characterized in that two electrodes (5) for electrical connection of the pre-welded layer are arranged on the pressure plate (4) for simultaneous pressing of the pre-welded layer and the conductor (1).
8. Welding process according to claim 7, 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).
9. A welded structure of a capacitor component, comprising: a conductor (1) composed of one or more guide 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 manner 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 one or more guide wires (11) of the conductor (1) are all covered by the welding part (2);
preferably, when the conductor (1) has a plurality of guide wires (11), the free ends of the plurality of guide wires (11) have a plurality of projecting orientations.
10. The welded structure of capacitor element as claimed in claim 9, 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210242031.2A CN114613600A (en) | 2022-03-11 | 2022-03-11 | Welded structure and welded structure of capacitor spare part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210242031.2A CN114613600A (en) | 2022-03-11 | 2022-03-11 | Welded structure and welded structure of capacitor spare part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114613600A true CN114613600A (en) | 2022-06-10 |
Family
ID=81862578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210242031.2A Pending CN114613600A (en) | 2022-03-11 | 2022-03-11 | Welded structure and welded structure of capacitor spare part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114613600A (en) |
-
2022
- 2022-03-11 CN CN202210242031.2A patent/CN114613600A/en active Pending
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