CN110571053B - Capacitor insulation terminal cover - Google Patents
Capacitor insulation terminal cover Download PDFInfo
- Publication number
- CN110571053B CN110571053B CN201910845801.0A CN201910845801A CN110571053B CN 110571053 B CN110571053 B CN 110571053B CN 201910845801 A CN201910845801 A CN 201910845801A CN 110571053 B CN110571053 B CN 110571053B
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- CN
- China
- Prior art keywords
- connecting cylinder
- cylinder
- power line
- capacitor
- terminal cover
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000003990 capacitor Substances 0.000 title claims abstract description 24
- 238000009413 insulation Methods 0.000 title claims description 5
- 238000005476 soldering Methods 0.000 claims abstract description 21
- 238000005452 bending Methods 0.000 claims abstract description 17
- 238000003466 welding Methods 0.000 claims abstract description 15
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052751 metal Inorganic materials 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 9
- 239000011810 insulating material Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 11
- 239000000463 material Substances 0.000 description 5
- 238000007493 shaping process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 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 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 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 1
- 230000032683 aging Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 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 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
- H01G4/224—Housing; Encapsulation
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
Abstract
The invention discloses a capacitor insulating terminal cover which comprises a cover plate, a wiring terminal and a power line, wherein the wiring terminal comprises an L-shaped wiring part and a connecting cylinder, the connecting cylinder is in a waist drum shape with a thick middle part, the cover plate is provided with a connecting hole, the connecting hole is in the waist drum shape with the same shape as the connecting cylinder, the wiring part comprises a vertical part connected with an external lead and a horizontal part connected with the connecting cylinder, the horizontal part is provided with a tin welding hole coaxially arranged with the connecting cylinder, and the bottom end of the connecting cylinder is provided with a bending part extending towards the center of the connecting cylinder; the conductive core body of the power cord penetrates through the bending part and extends into the connecting cylinder, and the conductive core body of the power cord and the connecting cylinder are fixed through tin soldering filling. The capacitor insulating terminal cover can avoid the problem that a soldering part is easy to fall off from two ends of a connecting cylinder after being aged; the bending part fixes the conductive core of the power line, so that the complex process of auxiliary fixation of the power line is avoided, and the welding efficiency is improved.
Description
Technical Field
The invention belongs to the technical field of capacitors, and particularly relates to an insulating terminal cover of a capacitor.
Background
In general, an insulative terminal cover for a capacitor is formed by fixing a snap terminal to an upper surface of a cover body made of an insulative material by a rivet, and the rivet simultaneously fixes a welding tab to a lower surface of the cover body, and is welded to an internal power line of the capacitor by the welding tab. The more uniformity of the used part of this kind of traditional structure is relatively poor, easily causes great contact resistance, and the welding area of welding piece and inside power cord is less, easily drops or rosin joint, and during the riveting of welding piece, it is great easily to cause the interval moreover, causes the creepage distance of power great. Patent application No. CN201410441563.4 discloses a capacitor insulation terminal cover, but this structure has the following problems: (1) because the internal power line is soft, a gap exists between the inner core of the power line and the connecting cylinder when soldering is carried out, and if the internal power line is not fixed in an auxiliary way, the internal power line can fall off during soldering, so that the soldering is not firm; (2) the capacitor has a complex use environment and is often bumped or collided, and the formed waist-drum-shaped soldering part with a thin middle part is easy to fall off from two ends of the connecting cylinder once being aged, so that the electric conductivity of the capacitor is influenced.
Disclosure of Invention
The present invention addresses the problems of the prior art described above by providing a capacitor insulative terminal cover.
The invention solves the technical problems through the following technical means:
the capacitor insulation terminal cover comprises a cover plate made of insulation materials, a wiring terminal and a power line arranged in a capacitor shell, wherein the wiring terminal comprises an L-shaped wiring part and a connecting cylinder arranged at the bottom of the wiring part, the connecting cylinder is in a waist drum shape with a thick middle part, the cover plate is provided with a connecting hole for embedding the connecting cylinder, the connecting hole is in a waist drum shape the same as the connecting cylinder in shape, the wiring part comprises a vertical part connected with an external lead and a horizontal part connected with the connecting cylinder, the horizontal part is provided with a soldering hole coaxially arranged with the connecting cylinder, and the bottom end of the connecting cylinder is provided with a bending part extending towards the center of the connecting cylinder; the conductive core body of the power cord penetrates through the bending part and extends into the connecting cylinder, and the conductive core body of the power cord and the connecting cylinder are fixed through tin soldering filling.
Furthermore, the front of the connecting cylinder embedded into the connecting hole is in a straight cylinder shape, and the outer diameter of the connecting cylinder is the same as the aperture of the port of the connecting hole.
Furthermore, the connecting cylinder is in a straight cylinder shape formed by attaching a plurality of metal sheets end to end, and expansion gaps are arranged between the adjacent metal sheets.
Furthermore, the bending parts at the bottom end of the connecting cylinder correspond to the metal sheets one by one, angular deformation joints are arranged between the adjacent bending parts, the expansion joints extend downwards to form the deformation joints, and the lower ends of the expansion joints are angular vertexes of the deformation joints.
Furthermore, after the bending part is formed, the connecting cylinder is bent and extended above the center of the connecting cylinder to form a J shape, and a horn-shaped opening is formed at the bottom of the connecting cylinder after the bending part is formed.
Furthermore, the wiring terminal is integrally formed.
The invention has the beneficial effects that: the capacitor insulating terminal cover can avoid the problem that a soldering part is easy to fall off from two ends of a connecting cylinder after being aged; the bending part fixes the conductive core of the power line, so that the complex process of auxiliary fixation of the power line is avoided, and the welding efficiency is improved.
Drawings
FIG. 1 is a schematic cross-sectional view of an insulated terminal cover of a container according to the present invention;
FIG. 2 is a schematic perspective view of the formed insulated terminal cover of the container of the present invention;
FIG. 3 is an exploded view of the container insulating terminal cover of the present invention prior to molding;
fig. 4 is a partially enlarged schematic view at a in fig. 3.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
As shown in fig. 1 to 3, the capacitor insulating terminal cover includes a cover plate 10 made of an insulating material, a connection terminal 20 and a power line 30 disposed in a capacitor case, wherein the connection terminal 20 includes an L-shaped connection portion 21 and a connection barrel 22 disposed at the bottom of the connection portion 21, the connection barrel 22 is in a waist drum shape with a thick middle part, a connection hole 11 for embedding the connection barrel 22 is disposed on the cover plate 10, the connection hole 11 is in a waist drum shape identical to the connection barrel 22 in shape, the connection portion 21 includes a vertical portion 211 connected to an external wire and a horizontal portion 212 connected to the connection barrel 22, a soldering hole 23 coaxially disposed with the connection barrel 22 is disposed on the horizontal portion 212, and a bent portion 24 extending toward the center of the connection barrel 22 is disposed at the bottom end of the connection barrel 22; the conductive core of the power line 30 passes through the bending part 24 and extends into the connecting cylinder 22, and the conductive core of the power line 30 and the connecting cylinder 22 are fixed by soldering filling. It will be understood by those skilled in the art that the core of the terminal 20 and the core of the power cord 30 are both made of conductive material, preferably copper or aluminum, and the vertical portion 211 of the wire connecting portion 21 is provided with a wire connecting hole (not shown) for facilitating the connection of the terminal 20 with an external electronic device.
The insulating terminal cover of the capacitor aims to improve the contact area among tin liquid, the conductive core of the power line 30 and the connecting cylinder 22 during soldering through the connecting cylinder 22 with thick middle waist drum shape, thereby ensuring the firmness of the conductive core of the power line 30 and the connecting cylinder 22 after soldering, and completely wrapping the conductive core of the power line 30 by welding materials to avoid insufficient soldering or desoldering; on the other hand, the connecting hole 11 and the connecting cylinder 22 are designed to be thick in the middle of a waist drum shape, so that the welding tin material in the connecting hole can be protected in a wrapping mode, and the problem that the tin welding part is easy to fall off from the two ends of the connecting cylinder 22 after being aged is solved through the openings with the two ends being reduced. In addition, the provision of the bent portion 24 extending toward the center of the connector barrel 22 at the bottom end of the connector barrel 22 has the following advantages: (1) the specification and the size of the connecting cylinder 22 during production are controlled according to actual production requirements, so that the aperture of a central hole formed by the bending part 24 is slightly smaller than that of a conductive core of the power line 30, when soldering is carried out, the conductive core of the power line 30 is inserted into the central hole formed by the bending part 24 to be in interference fit, friction resistance is formed on the conductive core of the power line 30, a complex procedure of auxiliary fixing of the power line 30 is avoided, the conductive core of the power line 30 can be fixed through the bending part 24, welding firmness can be guaranteed while direct soldering is carried out, and welding efficiency is improved; and (2) because the conductive core of the power line 30 is in interference fit with the central hole formed by the bent part 24, the bottom of the connecting cylinder 22 is almost sealed after the connection is finished, and the problem that a soldered part is easy to fall off from the port of the connecting cylinder 22 after being aged can be further avoided.
As shown in fig. 3, the connecting cylinder 22 is a straight cylinder before being inserted into the connecting hole 11, and the outer diameter of the connecting cylinder 22 is the same as the port diameter of the connecting hole 11. The connecting cylinder 22 with the structure is convenient for directly inserting the connecting cylinder 22 into the connecting hole 11 when the cover plate 10 and the wiring terminal 20 are installed in a matched mode, the middle of the connecting cylinder 22 is expanded to be attached to the inner wall of the connecting hole 11, and after tin soldering filling is carried out, the connecting cylinder 22 is filled with a soldering tin material, so that the connecting cylinder 22 can be prevented from being loosened due to use or aging rebound.
As shown in fig. 4, the connecting cylinder 22 is formed by a plurality of metal sheets 221 which are jointed end to form a straight cylinder shape, and expansion gaps 222 are arranged between adjacent metal sheets 221. The connecting cylinder 22 can be attached to the inner wall of the connecting hole 11 only by middle expansion in the connecting hole 11, the requirement on processing equipment is high when the straight cylinder of an integral structure is expanded, and the expansion is difficult.
As shown in fig. 4, the bent portions 24 at the bottom end of the connecting cylinder 22 correspond to the metal sheets 221 one by one, an angular deformation joint 241 is arranged between the adjacent bent portions 24, the expansion joint 222 extends downwards to form the deformation joint 241, and the lower end of the expansion joint 222 is an angular vertex of the deformation joint 241. Because the outside inflation in middle part of connecting cylinder 22 in the inflation shaping leads to the connecting cylinder 22 lower extreme to extrude to the centre, sets up behind movement joint 241, can avoid kink 24 to take place coincide, extrude or even warp because of the steric hindrance when to middle extrusion shaping. To the insulating terminal cover of condenser of different models, guarantee adjacent movement joint 241 closely to laminate after the shaping through the angle that opens and shuts of control movement joint 241.
As shown in fig. 1, the bent portion 24 is bent and extended to form a "J" shape above the center of the connector 22 after being formed, and the bottom of the bent portion 24 forms a trumpet-shaped opening. This facilitates, on the one hand, insertion of the conductive core of the power cord 30 into the connector barrel 22 through the flared opening, and, on the other hand, the bent portion 24 forms a barb structure that prevents the conductive core of the power cord 30 from slipping off.
When the combined installation is carried out specifically, the connecting cylinder 22 of the connecting terminal 20 is inserted into the connecting hole 11 on the cover plate 10, the expansion tool is used for expanding the middle part of the connecting terminal 20 to be attached to the inner wall of the connecting hole 11, the part can be independently used as a process to form a combined body of the connecting terminal 20 and the cover plate 10, then the welding process is carried out, the conductive core body of the power wire 30 is inserted into the connecting cylinder 22 through the bending part 24, then the soldering operation is carried out on the connecting cylinder 22 through the soldering hole 23, and the materials to be welded are solidified.
It is noted that, in this document, relational terms such as first and second, and the like, if any, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (5)
1. The capacitor insulating terminal cover comprises a cover plate (10) made of insulating materials, a wiring terminal (20) and a power line (30) arranged in a capacitor shell, the wiring terminal (20) comprises an L-shaped wiring part (21) and a connecting cylinder (22) arranged at the bottom of the wiring part (21), it is characterized in that the connecting cylinder (22) is in a waist drum shape with thick middle, the cover plate (10) is provided with a connecting hole (11) for embedding the connecting cylinder (22), the connecting hole (11) is waist drum-shaped with the same shape as the connecting cylinder (22), the wire connecting portion (21) includes a vertical portion (211) connected to an external wire and a horizontal portion (212) connected to the connecting cylinder (22), the horizontal part (212) is provided with a tin welding hole (23) which is coaxial with the connecting cylinder (22), the bottom end of the connecting cylinder (22) is provided with a bending part (24) extending towards the center of the connecting cylinder (22); the conductive core of the power line (30) penetrates through the bending part (24) and extends into the connecting cylinder (22), and the conductive core of the power line (30) and the connecting cylinder (22) are fixed through soldering filling;
the bent part (24) is bent and extended to form a J shape above the center of the connecting cylinder (22) after being formed, and a horn-shaped opening is formed at the bottom of the bent part (24) after being formed.
2. The capacitor insulative terminal cover according to claim 1, wherein the connection cylinder (22) is a straight cylinder before being fitted into the connection hole (11), and an outer diameter of the connection cylinder (22) is the same as a port diameter of the connection hole (11).
3. The capacitor insulation terminal cover according to claim 2, characterized in that the connecting cylinder (22) is formed into a straight cylinder shape by attaching a plurality of metal sheets (221) end to end, and expansion gaps (222) are arranged between the adjacent metal sheets (221).
4. The capacitor insulative terminal cover according to claim 3, wherein the bent portions (24) of the bottom end of the connection barrel (22) correspond to the metal sheets (221) one by one, and an angular deformation joint (241) is provided between the adjacent bent portions (24), the expansion joint (222) extends downward to form the deformation joint (241), and the lower end of the expansion joint (222) is an angular vertex of the deformation joint (241).
5. The insulative terminal cover for capacitor as claimed in any one of claims 1 to 4, wherein the terminal (20) is integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910845801.0A CN110571053B (en) | 2019-09-06 | 2019-09-06 | Capacitor insulation terminal cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910845801.0A CN110571053B (en) | 2019-09-06 | 2019-09-06 | Capacitor insulation terminal cover |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110571053A CN110571053A (en) | 2019-12-13 |
| CN110571053B true CN110571053B (en) | 2021-06-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910845801.0A Active CN110571053B (en) | 2019-09-06 | 2019-09-06 | Capacitor insulation terminal cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110571053B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112466666B (en) * | 2020-11-20 | 2022-11-18 | 深圳锐取电子有限公司 | High-strength metallized film capacitor and preparation device thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1367167A (en) * | 1971-10-05 | 1974-09-18 | Gates Rubber Co | Electrochemical seal |
| CN104240944A (en) * | 2014-09-01 | 2014-12-24 | 慈溪市日益电容器厂 | Capacitor insulated terminal cover |
| CN204668163U (en) * | 2015-06-17 | 2015-09-23 | 铜陵市科峰电子有限责任公司 | A kind of metallic film capacitor |
| CN208806165U (en) * | 2018-07-20 | 2019-04-30 | 安徽旭峰电容器有限公司 | A kind of capacitor |
-
2019
- 2019-09-06 CN CN201910845801.0A patent/CN110571053B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1367167A (en) * | 1971-10-05 | 1974-09-18 | Gates Rubber Co | Electrochemical seal |
| CN104240944A (en) * | 2014-09-01 | 2014-12-24 | 慈溪市日益电容器厂 | Capacitor insulated terminal cover |
| CN204668163U (en) * | 2015-06-17 | 2015-09-23 | 铜陵市科峰电子有限责任公司 | A kind of metallic film capacitor |
| CN208806165U (en) * | 2018-07-20 | 2019-04-30 | 安徽旭峰电容器有限公司 | A kind of capacitor |
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| Publication number | Publication date |
|---|---|
| CN110571053A (en) | 2019-12-13 |
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Application publication date: 20191213 Assignee: TONGLING QILI ELECTRONIC MATERIALS Co.,Ltd. Assignor: ANHUI SAFE ELECTRONICS Co.,Ltd. Contract record no.: X2023980052460 Denomination of invention: Capacitor insulation terminal cover Granted publication date: 20210611 License type: Common License Record date: 20231219 |