CN108511194A - A kind of capacitor guide pin and manufacturing method - Google Patents
A kind of capacitor guide pin and manufacturing method Download PDFInfo
- Publication number
- CN108511194A CN108511194A CN201810213112.3A CN201810213112A CN108511194A CN 108511194 A CN108511194 A CN 108511194A CN 201810213112 A CN201810213112 A CN 201810213112A CN 108511194 A CN108511194 A CN 108511194A
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- Prior art keywords
- flat
- shaped head
- cylinder
- guide pin
- wire
- 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 30
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 7
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 32
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 32
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 32
- 239000010959 steel Substances 0.000 claims abstract description 32
- 238000003466 welding Methods 0.000 claims abstract description 29
- 239000013256 coordination polymer Substances 0.000 claims abstract description 27
- 229910000679 solder Inorganic materials 0.000 claims abstract description 24
- 239000011888 foil Substances 0.000 claims abstract description 11
- 229910052802 copper Inorganic materials 0.000 claims abstract description 5
- 239000010949 copper Substances 0.000 claims abstract description 5
- 238000004080 punching Methods 0.000 claims description 7
- 230000001154 acute effect Effects 0.000 claims description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 4
- 239000001301 oxygen Substances 0.000 claims description 4
- 229910052760 oxygen Inorganic materials 0.000 claims description 4
- 230000007704 transition Effects 0.000 claims description 4
- 230000003111 delayed effect Effects 0.000 claims description 3
- 239000007789 gas Substances 0.000 claims description 3
- 239000011261 inert gas Substances 0.000 claims description 3
- 230000001788 irregular Effects 0.000 claims description 3
- 239000002699 waste material Substances 0.000 claims description 3
- 238000005452 bending Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 7
- 239000004033 plastic Substances 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000003754 machining Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/004—Details
- H01G9/008—Terminals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G13/00—Apparatus specially adapted for manufacturing capacitors; Processes specially adapted for manufacturing capacitors not provided for in groups H01G4/00 - H01G11/00
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
The present invention discloses a kind of capacitor guide pin and manufacturing method, it is made of aluminum steel and CP wire, a part of punch forming in the aluminum steel, form flat-shaped head, another part is cylinder, and cylinder is located on the cross central line on flat-shaped head, and intermediate location is formed between the flat-shaped head and cylinder, intermediate location is in side's R shapes；Flat-shaped head is arcuate structure；The cylinder of CP wire and aluminum steel is welded to connect, and solder joint between the two is in truncated cone-shaped structure；The front end face of CP wire is arc-shaped end face, and the half that radius is tinning steel-in-copper linear diameter.The intermediate location of the present invention is side's R shapes, and bending intensity is big, and damage and fracture bad phenomenon are also easy to produce in avoiding container from assembling；Flat-shaped head is arcuate structure, can reduce the internal probability for puncturing pole foil, improve product quality；Welding spot size and appearance can be well controlled, and avoid puncturing rubber or exposing phenomenon in aperture after being inserted into rubber stopper.
Description
Technical field
The present invention relates to capacitor parts technical fields, and in particular to a kind of capacitor guide pin and manufacturing method.
Background technology
Capacitor has two guide pins to draw as signal source in the application, and guide pin function is made of two parts, i.e., internal
Connection and external connection.Guide pin material is made of two parts：Aluminum steel and CP wire, after being welded by arc welding,
To last point of aluminum steel Pressing Deformation again, by mold obtain needed for shape and size, deformed part is in rectangular shape, another portion
Divide not punching press, keeps cylindric.
Connection is shape after being wound with insulating paper after rectangular sheet shape is connect with capacitor pole foil cold compaction process inside guide pin
At fuse；Guide pin external connection is mainly that CP wire passes through capacitor rubber consent hole, then is connect with circuit board.
Since same aluminum steel has Pressing Deformation and indeformable the two shape to occur, inside connection capacitor pole foil is wound into core
After son, capacitor needs subsequent handling to be fitted into tubular aluminum hull, and in assembling process, CP wire stress is transmitted to aluminum steel
Deformation and indeformable transition portion, the transition portion shape determine to be also easy to produce damage in stress intensity size and capacitor assembly
Wound and fracture bad phenomenon（See Fig. 1）；In addition, aluminum steel Pressing Deformation part and capacitor pole foil cold riveting, pole foil thickness only have 65-
104 μm, Pressing Deformation head is rectangle, and top easily punctures pole foil there are two wedge angle（See Fig. 1）
Pad is formed after CP wire section, one end and aluminum steel welding, spot size, appearance are by capacitor rubber
Pore size and thickness limitation are filled in, since welding is welded under normal conditions, oxygen generates gas explosion at high temperature in air, and burst point is big
Small, appearance is difficult to control, and causes to puncture rubber or exposing phenomenon in aperture after being inserted into rubber stopper（See Fig. 1）；Other end tin-coated copper
Steel clad wire is since notch is jagged and acute angle（See Fig. 2）, after capacitor after process casing plastic casing pipe, end and capacitor phase
Plastic casing pipe can be punctured cracking by mutual friction（See Fig. 1）.
Invention content
In view of the defects and deficiencies of the prior art, the present invention intends to provide a kind of capacitor guide pin and manufacturers
Method.
To achieve the above object, the technical solution adopted by the present invention is：A kind of capacitor guide pin, respectively positive guide pin and
Negative electrode guide needle, the anode guide pin is longer 5-8mm than negative electrode guide needle, and the anode guide pin is identical with the structure of negative electrode guide needle, and
It is made of aluminum steel and CP wire, innovative point is：A part of punch forming in the aluminum steel, forms flat-shaped head,
And thickness is 0.2-0.3mm, another part is cylinder, and a diameter of 1.0-2.5mm, and cylinder is located at the cross on flat-shaped head
To on center line, intermediate location is formed between the flat-shaped head and cylinder, the intermediate location is in side's R shapes, and length is
1.0-1.3mm, maximum width 1.0-1.5mm；The flat-shaped head is arcuate structure；The CP wire and aluminum steel
Cylinder is welded to connect, and solder joint between the two is in truncated cone-shaped structure；The front end face of the CP wire is arc-shaped
End face, and the half that radius is tinning steel-in-copper linear diameter.
Further, the radius of the front end face on the flat-shaped head is the half of flat-shaped head width.
Further, the length of the solder joint is 0.5-0.8mm, and the outer diameter of solder joint is less than or equal to aluminum steel diameter.
Further include a kind of manufacturing method of the capacitor guide pin, innovative point is, sharp by punch forming, removal respectively
Angle, welding and electrochemical deburring, are as follows：
Punch forming：A part of punch forming in aluminum steel forms flat-shaped head, and thickness is 0.2-0.3mm, and another part is not
Punching press, is cylinder, and a diameter of 1.0-2.5mm, and cylinder is located on the cross central line on flat-shaped head 11, flat-shaped head
Intermediate location is formed between cylinder, intermediate location is in side's R shapes, and length is 1.0-1.3mm, maximum width 1.0-
1.5mm；
Remove acute angle：Both ends wedge angle is removed using three knife molds to flat-shaped head, camber structure prevents wedge angle from puncturing internal poles
Foil forms arcuate structure specifically, three knife molds are carried out while being cut off in punching press, to a plurality of edge waste squeezed out；
Welding：When CP wire is welded with aluminum steel, part uses abrupt release inert gas, release time welding in advance
Preceding 0.5S, the 0.3S that is delayed after welding are closed, and weld interval 0.25-0.4S, welding temperature is 30-50 DEG C, the length of solder joint
For 0.5-0.8mm, and the outer diameter of solder joint is less than or equal to 1 diameter of aluminum steel can reduce sky due to welding in an inert atmosphere
Oxygen in gas effectively controls solder joint and splashes and irregular phenomenon, stomata is generated when reducing instantaneous high-temperature welding inside solder joint；
Electrochemical deburring：After the completion of welding, the front end face of CP wire will produce burr, and capacitor guide pin connects power supply hair
Raw device, and being discharged twice the front end face of CP wire, and first time discharge voltage is 400V, time 0.2S,
Second of discharge voltage is 200V, and time 0.1S ultimately forms arc-shaped end face.
With the above structure, the present invention has the beneficial effect that：
The configuration of the present invention is simple is reasonable, and technique is accurate, and intermediate location is side's R shapes, and bending intensity is big, can bear 90 ° of foldings three times
It is curved, and 800g is loaded, damage and fracture bad phenomenon are also easy to produce in avoiding container from assembling；Flat-shaped head is arcuate structure, can
The internal probability for puncturing pole foil is reduced, product quality is improved；Welding spot size and appearance can be well controlled, and avoid being inserted into
Rubber or exposing phenomenon in aperture are punctured after rubber stopper；The front end face of CP wire is arc-shaped end face, can be in capacitance
After device plastic casing pipe is not punctured in process assembly.
Description of the drawings
Fig. 1 is the structural schematic diagram of existing conventional capacitor guide pin；
Fig. 2 is the front end face structural schematic diagram of existing conventional capacitor guide pin；
Fig. 3 is the structural schematic diagram of the present invention；
Fig. 4 is the machining sketch chart on flat-shaped head in the present invention；
Fig. 5 is the machining sketch chart of arc-shaped end face in the present invention.
Reference sign：
1 aluminum steel, 11 flat-shaped heads, 12 cylinders, 13 intermediate locations, 2 CP wires, 21 arc-shaped end faces, 3 solder joints, 4 three
Knife mold, 5 power source generators.
Specific implementation mode
The present invention will be further described below with reference to the drawings.
In order to make the purpose , technical scheme and advantage of the present invention be clearer, below in conjunction with attached drawing and specific implementation
Mode, the present invention will be described in further detail.It should be appreciated that the specific embodiments described herein are only explaining this
Invention, is not intended to limit the present invention.
Embodiment 1
Referring to Fig. 3, a kind of capacitor guide pin, respectively positive guide pin and negative electrode guide needle, positive guide pin are longer 5- than negative electrode guide needle
8mm, positive guide pin are identical with the structure of negative electrode guide needle, and are made of aluminum steel 1 and CP wire 2, a part of in aluminum steel 1
Punch forming, forms flat-shaped head 11, and thickness is 0.2-0.3mm, and another part is cylinder 12, and a diameter of 1.0-
2.5mm, and cylinder 12 is located on the cross central line on flat-shaped head 11, and transition is formed between flat-shaped head 11 and cylinder 12
Position 13, intermediate location 13 is in side's R shapes, and length is 1.0-1.3mm, and maximum width 1.0-1.5mm, intermediate location 13 is side
R shapes, bending intensity is big, can bear 90 ° of bendings three times, and load 800g, damage and fracture are also easy to produce in avoiding container from assembling
Bad phenomenon；Flat-shaped head 11 is arcuate structure；CP wire 2 and the cylinder 12 of aluminum steel 1 are welded to connect, and the two it
Between solder joint 3 be in truncated cone-shaped structure；The front end face of CP wire 2 is arc-shaped end face 21, and radius is tinning steel-in-copper
The half of 2 diameter of line can not puncture plastic casing pipe after capacitor in process assembly.
Embodiment 2 improves product quality in order to reduce the internal probability for puncturing pole foil, and flat-shaped head 11 is arc
Structure, the radius of the front end face on flat-shaped head 11 are the half of 11 width of flat-shaped head.
Embodiment 3 avoids piercing after being inserted into rubber stopper in order to which the size and appearance that enable solder joint 3 are well controlled
The length of rubber or exposing phenomenon in holes diameter, solder joint 3 should control between 0.5-0.8mm, and the outer diameter of solder joint 3 is less than or equal to
1 diameter of aluminum steel..
Further include the manufacturing method of the capacitor guide pin, passes through punch forming, removal acute angle, welding and electrochemical unhairing respectively
Thorn, is as follows：
Punch forming：A part of punch forming in aluminum steel forms flat-shaped head, and thickness is 0.2-0.3mm, and another part is not
Punching press, is cylinder, and a diameter of 1.0-2.5mm, and cylinder is located on the cross central line on flat-shaped head 11, flat-shaped head
Intermediate location is formed between cylinder, intermediate location is in side's R shapes, and length is 1.0-1.3mm, maximum width 1.0-
1.5mm（See Fig. 3）；
Remove acute angle：Both ends wedge angle is removed using three knife molds 4 to flat-shaped head, camber structure prevents wedge angle from puncturing inside
Pole foil forms arcuate structure specifically, three knife molds 4 are carried out while being cut off in punching press, to a plurality of edge waste squeezed out
（See Fig. 4）；
Welding：When CP wire is welded with aluminum steel, part uses abrupt release inert gas, release time welding in advance
Preceding 0.5S, the 0.3S that is delayed after welding are closed, and weld interval 0.25-0.4S, temperature remains 30-50 DEG C when welding, solder joint
Length be 0.5-0.8mm, and the outer diameter of solder joint be less than or equal to 1 diameter of aluminum steel（See Fig. 3）, due to welding in an inert atmosphere
It connects, the oxygen in air can be reduced, effectively control solder joint and splash and irregular phenomenon, reduce instantaneous high-temperature welding inside solder joint
When generate stomata；
Electrochemical deburring：After the completion of welding, the front end face of CP wire will produce burr, and capacitor guide pin connects power supply hair
Raw device 5, and being discharged twice the front end face of CP wire, and first time discharge voltage is 400V, time 0.2S,
Second of discharge voltage is 200V, and time 0.1S ultimately forms arc-shaped end face（See Fig. 3, Fig. 5）.
The above is merely illustrative of the technical solution of the present invention and unrestricted, and those of ordinary skill in the art are to this hair
The other modifications or equivalent replacement that bright technical solution is made, as long as it does not depart from the spirit and scope of the technical scheme of the present invention,
It is intended to be within the scope of the claims of the invention.
Claims (4)
1. a kind of capacitor guide pin, respectively positive guide pin and negative electrode guide needle, the anode guide pin is longer 5-8mm than negative electrode guide needle,
The anode guide pin is identical with the structure of negative electrode guide needle, and is made of aluminum steel and CP wire, it is characterised in that：It is described
A part of punch forming in aluminum steel forms flat-shaped head, and thickness is 0.2-0.3mm, and another part is cylinder, and a diameter of
1.0-2.5mm, and cylinder is located on the cross central line on flat-shaped head, and transition is formed between the flat-shaped head and cylinder
Position, the intermediate location is in side's R shapes, and length is 1.0-1.3mm, maximum width 1.0-1.5mm；The flat-shaped head is
Arcuate structure；The cylinder of the CP wire and aluminum steel is welded to connect, and solder joint between the two is in truncated cone-shaped structure；
The front end face of the CP wire is arc-shaped end face, and the half that radius is tinning steel-in-copper linear diameter.
2. a kind of capacitor guide pin according to claim 1, it is characterised in that：The radius of the front end face on the flat-shaped head
For the half of flat-shaped head width.
3. a kind of capacitor guide pin according to claim 1, it is characterised in that：The length of the solder joint is 0.5-0.8mm,
And the outer diameter of solder joint is less than or equal to aluminum steel diameter.
4. a kind of manufacturing method of capacitor guide pin according to claim 1, which is characterized in that respectively by striking out
Type, removal acute angle, welding and electrochemical deburring, are as follows：
Punch forming：A part of punch forming in aluminum steel forms flat-shaped head, and thickness is 0.2-0.3mm, and another part is not
Punching press, is cylinder, and a diameter of 1.0-2.5mm, and cylinder is located on the cross central line on flat-shaped head 11, flat-shaped head
Intermediate location is formed between cylinder, intermediate location is in side's R shapes, and length is 1.0-1.3mm, maximum width 1.0-
1.5mm；
Remove acute angle：Both ends wedge angle is removed using three knife molds to flat-shaped head, camber structure prevents wedge angle from puncturing internal poles
Foil forms arcuate structure specifically, three knife molds are carried out while being cut off in punching press, to a plurality of edge waste squeezed out；
Welding：When CP wire is welded with aluminum steel, part uses abrupt release inert gas, release time welding in advance
Preceding 0.5S, the 0.3S that is delayed after welding are closed, and weld interval 0.25-0.4S, welding temperature is 30-50 DEG C, the length of solder joint
For 0.5-0.8mm, and the outer diameter of solder joint is less than or equal to 1 diameter of aluminum steel can reduce sky due to welding in an inert atmosphere
Oxygen in gas effectively controls solder joint and splashes and irregular phenomenon, stomata is generated when reducing instantaneous high-temperature welding inside solder joint；
Electrochemical deburring：After the completion of welding, the front end face of CP wire will produce burr, and capacitor guide pin connects power supply hair
Raw device, and being discharged twice the front end face of CP wire, and first time discharge voltage is 400V, time 0.2S,
Second of discharge voltage is 200V, and time 0.1S ultimately forms arc-shaped end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810213112.3A CN108511194B (en) | 2018-03-15 | 2018-03-15 | Capacitor guide pin and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810213112.3A CN108511194B (en) | 2018-03-15 | 2018-03-15 | Capacitor guide pin and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108511194A true CN108511194A (en) | 2018-09-07 |
| CN108511194B CN108511194B (en) | 2024-04-09 |
Family
ID=63377361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810213112.3A Active CN108511194B (en) | 2018-03-15 | 2018-03-15 | Capacitor guide pin and manufacturing method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN108511194B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110517890A (en) * | 2019-08-27 | 2019-11-29 | 达州市金联富电子科技有限公司 | A kind of capacitance guide needle, tail end system of processing and processing method |
| CN110853926A (en) * | 2019-11-15 | 2020-02-28 | 安徽航睿电子科技有限公司 | Aluminum electrolytic capacitor |
| CN112053850A (en) * | 2020-10-12 | 2020-12-08 | 立敦电子科技（惠州）有限公司 | Preparation method of miniature capacitor special-purpose shrinkage guide pin |
| CN118258816A (en) * | 2024-05-29 | 2024-06-28 | 南通南平电子科技有限公司 | Quality inspection method and system for rounded corner product vehicle-mounted capacitor guide pin |
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| JP2011155279A (en) * | 2011-03-14 | 2011-08-11 | Elna Co Ltd | Aluminum electrolytic capacitor |
| CN202120763U (en) * | 2011-05-18 | 2012-01-18 | 丰宾电子（深圳）有限公司 | Capacitor guide pin and aluminium electrolytic capacitor |
| CN202650848U (en) * | 2012-06-07 | 2013-01-02 | 袁永 | A polymer aluminum electrolytic capacitor and an anode guiding pin thereof |
| CN206961684U (en) * | 2017-04-13 | 2018-02-02 | 东莞市日辉电子有限公司 | A kind of novel aluminium electrolytic capacitor guide pin |
| CN208027911U (en) * | 2018-03-15 | 2018-10-30 | 南通南铭电子有限公司 | A kind of capacitor guide pin |
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2018
- 2018-03-15 CN CN201810213112.3A patent/CN108511194B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2011155279A (en) * | 2011-03-14 | 2011-08-11 | Elna Co Ltd | Aluminum electrolytic capacitor |
| CN202120763U (en) * | 2011-05-18 | 2012-01-18 | 丰宾电子（深圳）有限公司 | Capacitor guide pin and aluminium electrolytic capacitor |
| CN202650848U (en) * | 2012-06-07 | 2013-01-02 | 袁永 | A polymer aluminum electrolytic capacitor and an anode guiding pin thereof |
| CN206961684U (en) * | 2017-04-13 | 2018-02-02 | 东莞市日辉电子有限公司 | A kind of novel aluminium electrolytic capacitor guide pin |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110517890A (en) * | 2019-08-27 | 2019-11-29 | 达州市金联富电子科技有限公司 | A kind of capacitance guide needle, tail end system of processing and processing method |
| CN110517890B (en) * | 2019-08-27 | 2024-09-06 | 达州市金联富电子科技有限公司 | Capacitive guide pin, tail end processing system and processing method |
| CN110853926A (en) * | 2019-11-15 | 2020-02-28 | 安徽航睿电子科技有限公司 | Aluminum electrolytic capacitor |
| CN110853926B (en) * | 2019-11-15 | 2022-08-19 | 益阳市宜兴电子有限公司 | Aluminum electrolytic capacitor |
| CN112053850A (en) * | 2020-10-12 | 2020-12-08 | 立敦电子科技（惠州）有限公司 | Preparation method of miniature capacitor special-purpose shrinkage guide pin |
| CN112053850B (en) * | 2020-10-12 | 2022-05-24 | 立敦电子科技（惠州）有限公司 | Preparation method of special miniature-capacitor shrinkage guide pin |
| CN118258816A (en) * | 2024-05-29 | 2024-06-28 | 南通南平电子科技有限公司 | Quality inspection method and system for rounded corner product vehicle-mounted capacitor guide pin |
| CN118258816B (en) * | 2024-05-29 | 2024-09-20 | 南通南平电子科技有限公司 | Quality inspection method and system for rounded corner product vehicle-mounted capacitor guide pin |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108511194B (en) | 2024-04-09 |
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