CN1162852A - Anti-wicking system for electrical connectors - Google Patents
Anti-wicking system for electrical connectors Download PDFInfo
- Publication number
- CN1162852A CN1162852A CN 97101230 CN97101230A CN1162852A CN 1162852 A CN1162852 A CN 1162852A CN 97101230 CN97101230 CN 97101230 CN 97101230 A CN97101230 A CN 97101230A CN 1162852 A CN1162852 A CN 1162852A
- Authority
- CN
- China
- Prior art keywords
- lead
- passage
- shell
- wire
- opening
- 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.)
- Pending
Links
Images
Landscapes
- Coupling Device And Connection With Printed Circuit (AREA)
Abstract
Provided is an anti-wicking system suitable for being installed at an electrical connectors (10) of printed circuit boards having welding circuit tracing. Said electrical connectors (10) comprises an outer housing (12) having a plurality of leads receiving channels (22). A plurality of leads (34) re inserted to the channels, and the welding leads part (34) of the leads are protruded out from the outer housing (12) and welded with the circuit tracing at the printed circuit boards. The outer housing (12) has at least one projecting portion (40) near the leads (34) for applying additional sheathing material which is thermoplastic at the leads vicinity (40 A) to prevent the rosin flux from wicking along the leads.
Description
The present invention relates generally to the terminal box technical field, relates to a kind of anti-wicking device that is applicable in the terminal box that is installed on the printed circuit board (PCB) particularly.
Various terminal boxes are applicable to and are installed on the printed circuit board (PCB).This class terminal box generally includes has the dielectric enclosure that lead-in wire holds passage, and the fine solder taul part or the terminal pin of this terminal box stretch out from this shell, so that on the fine suitable circuit trace that is soldered on this printed circuit board (PCB).This welding lead can be inserted in the hole on the circuit board or this lead-in wire can be made roughly open and flat footing, with as the surface that is installed on this circuit board.No matter under that a kind of situation of above-mentioned two kinds of situations, no matter this circuit trace all can be welded on the flat contact boss on the welding lead at the circuit trace on the circuit board in this hole and comprising near the hole or on this circuit board.
Problem along with the terminal box with above-mentioned feature is that solder flux and flux are understood the through hole that crosses of wetting this mounted on surface platform or printed circuit board (PCB), and tend to make the lead-in wire generation creep or the wicking of terminal box.Know all that those skilled in the art the wicking phenomenon does not wish to take place because it can cause the damage, terminal box of terminal box can not work, short circuit and very poor welding quality.
So far, adopted the whole bag of tricks to stop the generation of flux core suction phenomenon.Major part in these methods all relates to add-on parts and/or material.For example, used additional machine components to surround lead-in wire or the sealing lead-in wire is accepted passage, so that wicking forms the machinery blocking-up to solder flux.For example polyester film, teflon insulation resin, epoxy resin and other similar materials all once were used to surround lead-in wire to additional materials and/or the sealing lead-in wire is accepted passage to stop wicking.Also once used the anti-wicking band, for example the band made of aluminium stops the wicking of solder flux.
All said methods all will relate to certain version or other add-on parts, material, stream material or the like, have so just increased the production cost of terminal box significantly.The present invention aims to provide a kind of outside by the thermoplastic dielectric enclosure and forms an effective anti-wicking barrier to prevent solder flux and the flux material simple more method along terminal box lead-in wire generation wicking.
Therefore, the object of the present invention is to provide a kind of anti-wicking device that is applicable to the improved novelty in the terminal box on the printed circuit board (PCB) with circuit trace that can fine weldering mounted thereto.
In exemplary embodiments of the present invention, this device generally includes one and has the terminal box that a plurality of lead-in wires are accepted passage.A plurality of lead-in wires insert in these passages, and the welding lead of lead-in wire part is stretched out from this shell, be used for printed circuit board (PCB) on circuit trace weld mutually.Thereby near the outside of this shell lead-in wire is heated the softening solder flux that prevented along lead-in wire wicking takes place.
As disclosed herein, this shell is single or all-in-one-piece, and it has an abutting end and a lead end, and lead-in wire is accepted passage and extended along the direction between these two ends.Passage has opening at the lead end of shell.The welding lead part of lead-in wire is stretched out at the opening that the lead end of shell passes passage.Shell is heated softening opening with closed and sealed this passage at the lead end place.
Specifically, shell has bossing forming the additional housing material near the opening part of passage, and this material can be heated softening and be centered around around the lead-in wire and make the passage sealing.In most preferred embodiment, lead-in wire is accepted passage and is arranged in a row along shell, leads to the opening of passage to limit a row.It is to form by an outwardly directed independent rib of this row of openings that leaves passage that the bossing of the shell of additional thermoplastic material is provided.
Other purposes of the present invention, characteristics and advantage will be conspicuous from following detailed description and with reference to accompanying drawing.
It is believed that it is that the feature of the present invention with novelty has been done statement in detail in claims.Purpose of the present invention and advantage thereof can obtain best understanding by reading following explanation together with the reference accompanying drawing, and identical reference number is represented identical part in the accompanying drawing, in the accompanying drawing:
Fig. 1 is the perspective view of abutting end that embodies the electrical junction box of the principle of the invention;
Fig. 2 is the opposite end of this terminal box before thermoplastic or the perspective view of lead end;
Fig. 3 is the vertical cross section along the intercepting of the 3-3 line among Fig. 2;
Fig. 4 be after the shell thermoplastic with the similar figure of Fig. 3, and
Fig. 5 is the perspective view that the last thermoplastic of this housing is partly amplified.
Come in more detail below with reference to accompanying drawing,, be embodied in the present invention in the anti-wicking device of terminal box, with 10 expressions, be fit to be installed on the printed circuit board (PCB) (not shown) usually at first with reference to Fig. 1 and 2.Well-known in the prior art, for example solder joint is touched in plated-through-hole or flat welding to have the circuit trace that can weld on the printed circuit board (PCB).The connector of the latter and mounted on surface for example terminal box 10 interconnects, and this will illustrate below.
More precisely, terminal box 10 comprises one usually with the single or integral type shell of label 2 expressions, and this shell has preceding abutting end 14 and back lead end 16.This shell is made by for example plastics or the such dielectric substance of other similar materials.The plug portion 18 that cooperates stretches out and comprises a plurality of lead-in wire blade shape dump tanks or groove 20 from abutting end 14.A plurality of lead-in wires are accepted passage 22 and are passed shell 12 along the direction between abutting end 14 and lead end 16 respectively.These passages have opening 24 at lead end 16 places.Passage and opening are arranged in a row along the vertical of shell spaced-apartly.
In addition, terminal box shell 12 all has a mounting blocks 26 that is used for installing totally by " assembling nail " of label 30 expressions at its each opposite end.These two assembling nails on the shell opposite end generally include be used for printed circuit on the plane footing 32 that is connected as face of installation base.Assembling nail is stamped to form by sheet material, and footing 32 then is welded in welding process on the installation base of printed circuit board (PCB) so that this terminal box is fixed on this printed circuit board (PCB).
Referring to Fig. 3, can be clear that lead-in wire accepts passage 22 and pass shell 12 respectively between counterface 14 and the end face 16 that goes between in conjunction with Fig. 1 and 2 among the figure.Can also see that by this figure each dump tank on the outer surface of the mated plug part 18 of shell or groove 20 have simply formed the extendible portion that this lead-in wire is accepted passage.
Please again in conjunction with Fig. 1 and 2 referring to Fig. 3, insert in the passages 22 by opening 24 along arrow " A " direction (Fig. 3) totally by a plurality of lead-in wires of label 34 expression.In essence, this lead-in wire can insert in the terminal box shell from behind, and leaded can an insertion in the terminal box in groups simultaneously.
Each goes between and 34 is generally L shaped, and it comprises that one is passed a corresponding lead-in wire and accepts passage 22 and enter in the corresponding groove 22 on the outside of mated plug part 18 of shell and form the first leg 34a of a contact chip.The exposed junction 34a of contact chip can be engaged by the corresponding contact of the cooperation terminal box (not shown) of a complementation.Each L shaped lead-in wire 34 comprises one second leg 34b, and this leg leaves at it and curved the right angle usually when corresponding lead-in wire is accepted the opening 24 of passage 22.This leg forms a welding lead part with the open type of a roughly open and flat footing, be used for printed circuit board (PCB) on a flat welding contact boss weld mutually.Barb or tooth 34c form on the opposed edge of the first leg 34a of each lead-in wire 34.These barbs are bitten the plastics of shell 12 and are comprised a main holding device that is used for lead-in wire is fixed on the appropriate location in the passage of shell in passage 22.
In Fig. 3, can see, accept to exist between the passage 22 space 36 at its corresponding lead-in wire of lead-in wire contact chip 34a.Leaded for the institute in this row's passage, the existence in this space is certain.Under the situation of the anti-wicking device that does not have certain form, solder flux or flux tend to because capillarity is inhaled in this space and along lead-in wire contact chip part 34a forward, thereby caused variety of issue, its scope is from the single lead-in wire actual short of lead-in wire the contact chip of not working.So far,, mainly used the way of add-on parts, for example provide an additional union piece or several union piece to stop up this passage in order to address this problem; Perhaps with a kind of additional materials for example epoxy resin be full of this passage; Perhaps provide a kind of independent anti-wicking barrier, for example plastic film or aluminium strip.Generally speaking, the present invention considers to adopt the method for the softening shell of a kind of simple heating to close the passage at opening 24 places and stoped solder flux to wick in this passage along lead-in wire thus.
More precisely, please still referring to Fig. 2 and 3, most preferred embodiment of the present invention has used one or several bossing of shell near lead-in wire, so that the additional shell material to be provided, this material can be heated softening being centered around around the lead-in wire, thereby has stoped the wicking of solder flux along lead-in wire.As shown in the figure, a rib that outwards protrudes 40 is pressed into an integral body with shell mould, and along this lead-in wire row's length extending.Lead-in wire bends towards the opposite end of shell in staggered mode, can clearly be seen that from Fig. 2 rib 40 between the ectotropic alternately welding lead part 34b of lead-in wire is along lead-in wire row's stretching, extension situation.Can be clear that in Fig. 3 this rib is accepted the opening 24 of passage 22 very close to lead-in wire.
Additional materials at the rib 40 of the shell 12 at label 40a place has been shown in the Figure 4 and 5 is and how to be heated softening so that the situation that opening 24 is closed fully, thereby the lead-in wire of also just having closed back lead end 16 places of shell is accepted passage 22.Therefore, this thermoplastic of shell has partly formed a barrier that can stop any amount of solder flux or flux to enter shell by core sucting action along lead-in wire.In addition, this thermoplastic part comprises that also one is fixed on auxiliary retainer on the appropriate location in the outer shell passage to lead-in wire.
Should be pointed out that under the situation that does not break away from spirit of the present invention or principal character the present invention can embody with other concrete forms.Therefore, example of the present invention and embodiment can only be counted as illustrative and not restrictive in all fields, and the present invention is not subjected to the restriction of the details that this paper provides.
Claims (7)
1. one kind is applicable to the anti-wicking device in the terminal box (10) on the printed circuit board (PCB) with welding circuit trace mounted thereto, comprising:
Integral type dielectric enclosure (12) with abutting end (14) and lead end (16), this shell have along a plurality of lead-in wires of the extension of the direction between these two ends accepts passage (22), and this passage has opening (24) at described lead end;
A plurality ofly insert lead-in wires (34) in the passage (22) by opening (24), the welding lead part (34b) of this lead-in wire is stretched out from the lead end (16) of shell (12), be used for printed circuit board (PCB) on circuit trace weld mutually; And
Wherein near (40A) of this shell this lead end (16) locate to be heated softening, with this opening (24) of sealing this passage (22) and stop solder flux or flux to enter in this passage along lead-in wire by core sucting action.
2. the anti-wicking device described in claim 1 is characterized in that: this lead-in wire in described shell is accepted passage (22) and is arranged in a row and defines row's described opening (24), and this shell comes (40A) along this and locates to be heated softening.
3. the anti-wicking device described in claim 2, it is characterized in that: this shell (12) has an outward extending rib of this row of openings (24) (40) along this passage (22), thereby is used to provide the housing additional materials (40a) that can be heated softening closed and sealed this opening.
4. the anti-wicking device described in claim 1 is characterized in that: this welding lead part (34b) of this lead-in wire (34) is bent to a right angle when they leave the opening (24) of this passage (22) usually, with as the surface that is installed on this circuit board.
5. the anti-wicking device described in claim 1, it is characterized in that: this device comprises also and is used for lead-in wire (34) is fixed on main holding device (34c) on the appropriate location in the passage (22) of this shell (12) that this thermoplastic shell (40A) also comprises an auxiliary holding device.
6. method that the anti-wicking device in the terminal box (10) that is applicable on the printed circuit board (PCB) with welding circuit trace mounted thereto is provided, this method may further comprise the steps:
Provide one to have the integral type dielectric enclosure (12) that a plurality of lead-in wires are accepted passage (22);
A plurality of lead-in wires (34) are inserted in the described passage (22), and the welding lead part (34b) that makes this lead-in wire is stretched out from this shell (12) so that weld mutually with this circuit trace on this printed circuit board (PCB); And
Near this lead-in wire (34), carry out thermoplastic and seal described passage (22), enter in this passage by core sucting action along this lead-in wire to stop solder flux and flux from the outside to (40A) of this integral type shell (12).
7. the method described in claim 6 is characterized in that: this shell has can be heated softening additional case material (40), and near material that thermoplastic should add this lead-in wire (34) is to seal this passage (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97101230 CN1162852A (en) | 1996-02-06 | 1997-02-05 | Anti-wicking system for electrical connectors |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SG9601072 | 1996-02-06 | ||
| CN 97101230 CN1162852A (en) | 1996-02-06 | 1997-02-05 | Anti-wicking system for electrical connectors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1162852A true CN1162852A (en) | 1997-10-22 |
Family
ID=5165596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97101230 Pending CN1162852A (en) | 1996-02-06 | 1997-02-05 | Anti-wicking system for electrical connectors |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1162852A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1332480C (en) * | 2003-12-03 | 2007-08-15 | 住友电装株式会社 | Connector |
-
1997
- 1997-02-05 CN CN 97101230 patent/CN1162852A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1332480C (en) * | 2003-12-03 | 2007-08-15 | 住友电装株式会社 | Connector |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0789422A2 (en) | Anti-wicking system for electrical connectors | |
| CN1149717C (en) | Electrical connector for surface installation | |
| US5609491A (en) | Electrical connector for printed circuit board assembly | |
| US20070254521A1 (en) | Insulation displacement terminal | |
| US20070054556A1 (en) | Electrical connector | |
| CN102113183B (en) | Relay terminal member, circuit structure using the same, and electronic unit | |
| EP1858306A1 (en) | Three-dimensional wiring body for mounting electronic component and electronic component mounting structure | |
| KR20050031999A (en) | Electric connector | |
| KR920017529A (en) | Bended Retainer And Electrical Splicer | |
| CN1502147A (en) | Retention apparatus for electrical connectors | |
| CN1162852A (en) | Anti-wicking system for electrical connectors | |
| US20040127104A1 (en) | Wire connector assembly and method of forming same | |
| US6863542B2 (en) | Interconnecting structure for electrically connecting two printed circuit boards | |
| US20080271913A1 (en) | Three-Dimensional Wiring Body for Mounting Electronic Component and Electronic Component Mounting Structure | |
| EP0654184B1 (en) | Connector device and method for manufacturing same | |
| CN206727251U (en) | A kind of USB Type C connectors | |
| CN115694032A (en) | Stator module and motor | |
| KR100700239B1 (en) | Method for connecting a cable to a printed circuit board and housing having a cable connected to the printed circuit board according to said method | |
| US5588885A (en) | Connector with terminals having anti-wicking gel | |
| CN106997992A (en) | A kind of USB Type C connectors | |
| CN101854000B (en) | Electric connector and production method thereof | |
| US5830014A (en) | Electrical connector | |
| JP3081701B2 (en) | Connection structure of electronic parts, mounting plate of electronic parts, circuit board, and assembled finished product using these | |
| CN212304006U (en) | Connector for box body wiring and box body | |
| CN101872928B (en) | Electric connector having exterior conductor holder and shielded cable |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |