CN203491430U - Earphone contact pin with hole shrinkage wire-welding part - Google Patents
Earphone contact pin with hole shrinkage wire-welding part Download PDFInfo
- Publication number
- CN203491430U CN203491430U CN201320636578.7U CN201320636578U CN203491430U CN 203491430 U CN203491430 U CN 203491430U CN 201320636578 U CN201320636578 U CN 201320636578U CN 203491430 U CN203491430 U CN 203491430U
- Authority
- CN
- China
- Prior art keywords
- contact pin
- utmost point
- bonding wire
- undergauge
- sleeve pipes
- 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.)
- Expired - Lifetime
Links
- 238000003466 welding Methods 0.000 title abstract description 15
- 239000012212 insulator Substances 0.000 claims description 12
- 239000011324 bead Substances 0.000 claims description 7
- 238000001746 injection moulding Methods 0.000 abstract 1
- 229910000679 solder Inorganic materials 0.000 description 6
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 241000209094 Oryza Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Images
Landscapes
- Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
Abstract
The utility model discloses an earphone contact pin with a hole shrinkage wire-welding part. The earphone contact pin comprises a pole core pin, a dipolar bushing, a tripolar bushing and a quadrupolar bushing which are connected in turn. The quadrupolar bushing is provided with an annular convex ring which projects outward, a tail end of the quadrupolar bushing is provided with the hole shrinkage wire-welding part, the diameter of the hole shrinkage wire-welding part is smaller than the diameter of the quadrupolar bushing. Because the diameter of the hole shrinkage wire-welding part is smaller than the diameter of the quadrupolar bushing, the height of a welding spot which is welded is not higher than the height of the annular convex ring of the quadrupolar bushing after a wire is welded, phenomena that the earphone contact pin is crushed or the welding spot falls off do not occur easily when injection moulding is carried out, a poor electrical property of a short circuit of the formed earphone contact pin and a poor electrical property of an open circuit of the formed earphone contact pin do not occur, welding is firm and reliable, and the qualified rate of products is high.
Description
Technical field
The utility model relates to a kind of audio connector, more particularly, relates to a kind of earphone contact pin with undergauge bonding wire portion.
Background technology
Four traditional lug machine transplanting of rice pins are to consist of the pole piece pin connecting successively, two utmost point sleeve pipes, three utmost point sleeve pipes and four utmost point sleeve pipes, four utmost point sleeve pipes have annular bead, for the interface with audio frequency apparatus, peg graft,, but the diameter of the bonding wire portion of four utmost point sleeve pipes of traditional four lug machine transplanting of rice pins equate with four utmost point sleeve pipes, after bonding wire, the solder joint height of welding can exceed the annular bead of four utmost point sleeve pipes, cause easily damaging by pressure when injection mo(u)lding or solder joint comes off, the earphone contact pin forming out there will be the electrically bad of short circuit and open circuit, and conforming product rate is low.
Utility model content
The purpose of this utility model is to overcome above-mentioned defect of the prior art, and a kind of convenient welding is provided, firm welding, reliable, and electrical bad phenomenon occurs can reduce injection mo(u)lding time, the earphone contact pin with undergauge bonding wire portion that conforming product rate is high.
For achieving the above object, the technical scheme that the utility model provides is as follows: construct a kind of earphone contact pin with undergauge bonding wire portion, comprise the pole piece pin, two utmost point sleeve pipes, three utmost point sleeve pipes and four utmost point sleeve pipes that connect successively, four utmost point sleeve pipes have the annular bead of outwardly convex, described four utmost point sleeve pipe afterbodys have undergauge bonding wire portion, and the diameter of this undergauge bonding wire portion is less than the diameter of four utmost point sleeve pipes.
Furthermore, described undergauge bonding wire portion and four utmost point sleeve pipes are one-body molded.
The beneficial effect with the earphone contact pin of undergauge bonding wire portion described in the utility model is, by thering is undergauge bonding wire portion at described company four utmost point sleeve pipe afterbodys, the diameter of this undergauge bonding wire portion is less than the diameter of four utmost point sleeve pipes, because the diameter of undergauge bonding wire portion is less than the diameter of four utmost point sleeve pipes, after bonding wire, the solder joint height of welding can not exceed the annular bead of four utmost point sleeve pipes, when injection mo(u)lding, be not easy to damage by pressure or solder joint comes off, the earphone contact pin forming out there will not be the electrically bad of short circuit and open circuit, firm welding, reliable, conforming product rate is high.
Below in conjunction with drawings and Examples, the earphone contact pin with undergauge bonding wire portion described in the utility model is described further:
Accompanying drawing explanation
Fig. 1 is the three-dimensional structure diagram that the utlity model has the earphone contact pin of undergauge bonding wire portion.
Embodiment
Be below the most preferred embodiment with the earphone contact pin of undergauge bonding wire portion described in the utility model, therefore do not limit protection range of the present utility model.
With reference to Fig. 1, a kind of earphone contact pin with undergauge bonding wire portion is provided, comprise the pole piece pin 1 connecting successively, two utmost point sleeve pipes 2, three utmost point sleeve pipes 3 and four utmost point sleeve pipes 4, four utmost point sleeve pipes 4 have the annular bead 5 of outwardly convex, described four utmost point sleeve pipe 4 afterbodys have undergauge bonding wire portion 10, the diameter of this undergauge bonding wire portion 10 is less than the diameter of four utmost point sleeve pipes 4, because the diameter of undergauge bonding wire portion 10 is less than the diameter of four utmost point sleeve pipes 4, after bonding wire, the solder joint height of welding can not exceed the annular bead of four utmost point sleeve pipes 4, when injection mo(u)lding, be not easy to damage by pressure or solder joint comes off, the earphone contact pin forming out there will not be the electrically bad of short circuit and open circuit, firm welding, reliably.
Preferably, the diameter of described undergauge bonding wire portion 10 is for being less than 2.95mm.
Furthermore, described undergauge bonding wire portion 10 and four utmost point sleeve pipes 4 are one-body molded.
Between described pole piece pin 1 and two utmost point sleeve pipes 2, be provided with the first insulator 6.
Between described two utmost point sleeve pipes 2 and three utmost point sleeve pipes 3, be provided with the second insulator 7.
Between described three utmost point sleeve pipes 3 and four utmost point sleeve pipes 4, be provided with the 3rd insulator 8.
Described undergauge bonding wire portion 10 is provided with the 4th insulator 9.
Described the first insulator 6, the second insulator 7, the 3rd insulator 8, the 4th insulator 9, pole piece pin 1, two utmost point sleeve pipes 2, three utmost point sleeve pipes 3 and four utmost point sleeve pipes 4 are integrated injection mo(u)lding.
Above-described embodiment is preferably execution mode of the utility model; but execution mode of the present utility model is not restricted to the described embodiments; other any do not deviate from change, the modification done under Spirit Essence of the present utility model and principle, substitutes, combination, simplify; all should be equivalent substitute mode, within being included in protection range of the present utility model.
Claims (7)
1. an earphone contact pin with undergauge bonding wire portion, comprise the pole piece pin (1), two utmost point sleeve pipes (2), three utmost point sleeve pipes (3) and four utmost point sleeve pipes (4) that connect successively, four utmost point sleeve pipes (4) have the annular bead (5) of outwardly convex, it is characterized in that, described four utmost point sleeve pipe (4) afterbodys have undergauge bonding wire portion (10), and the diameter of this undergauge bonding wire portion (10) is less than the diameter of four utmost point sleeve pipes (4).
2. the earphone contact pin with undergauge bonding wire portion according to claim 1, is characterized in that, described undergauge bonding wire portion (10) is one-body molded with four utmost point sleeve pipes (4).
3. the earphone contact pin with undergauge bonding wire portion according to claim 1, is characterized in that, between described pole piece pin (1) and two utmost point sleeve pipes (2), is provided with the first insulator (6).
4. the earphone contact pin with undergauge bonding wire portion according to claim 1, is characterized in that, between described two utmost point sleeve pipes (2) and three utmost point sleeve pipes (3), is provided with the second insulator (7).
5. the earphone contact pin with undergauge bonding wire portion according to claim 1, is characterized in that, between described three utmost point sleeve pipes (3) and four utmost point sleeve pipes (4), is provided with the 3rd insulator (8).
6. the earphone contact pin with undergauge bonding wire portion according to claim 1, is characterized in that, described undergauge bonding wire portion (10) is provided with the 4th insulator (9).
7. the earphone contact pin with undergauge bonding wire portion according to claim 1, is characterized in that, the diameter of described undergauge bonding wire portion (10) is for being less than 2.95mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320636578.7U CN203491430U (en) | 2013-10-15 | 2013-10-15 | Earphone contact pin with hole shrinkage wire-welding part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320636578.7U CN203491430U (en) | 2013-10-15 | 2013-10-15 | Earphone contact pin with hole shrinkage wire-welding part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203491430U true CN203491430U (en) | 2014-03-19 |
Family
ID=50262235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320636578.7U Expired - Lifetime CN203491430U (en) | 2013-10-15 | 2013-10-15 | Earphone contact pin with hole shrinkage wire-welding part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203491430U (en) |
-
2013
- 2013-10-15 CN CN201320636578.7U patent/CN203491430U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140319 |
|
| CX01 | Expiry of patent term |