CN1094193A - Integral contact element - Google Patents
Integral contact element Download PDFInfo
- Publication number
- CN1094193A CN1094193A CN 93121233 CN93121233A CN1094193A CN 1094193 A CN1094193 A CN 1094193A CN 93121233 CN93121233 CN 93121233 CN 93121233 A CN93121233 A CN 93121233A CN 1094193 A CN1094193 A CN 1094193A
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- China
- Prior art keywords
- leg
- contact
- cable
- web
- shaped
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- 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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- Coupling Device And Connection With Printed Circuit (AREA)
- Multi-Conductor Connections (AREA)
- Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
Abstract
The composite type contact, plug connector particularly, comprise a U-shaped contact portion, approximately parallel two legs that linked to each other by the web part are arranged, have between two legs to be defined as to receive the receiving slit that cable is used, face toward the cutting edge that this groove has leg, it is suitable for piercing through the insulation of cable, and under leg strain situation, the engagement cable conductor.Preferably Y-piece second contact portion will be connected on the web part symmetrically facing to the leg of first contact portion.The leg of second contact portion of close U-shaped contact portion has the width littler than another leg, distributes so that obtain approximate uniform stress symmetric.The leg of Y-piece is chamfering on facing toward away from the surface of U-shaped groove partly.
Description
The present invention relates to a kind of composite type contact, especially for a kind of plug connector.
Be used for the U-shaped insulation displacement contacts of cable contact, needn't remove insulation sheath, the cutting edge of wherein facing the leg of cable receiving slit penetrates this insulation and substitutes it, is known to reach the various designs of meshing with cable conductor.They are employing wireless electricity communication system widely, and only as an illustration, United States Patent (USP) 4.773.875 or 5.022.868 have disclosed such U-shaped contact.
In addition, the contact that U-shaped insulation-displacement joint combines with other blank area is known, as having disclosed this other U-joint among the United States Patent (USP) 4.552.429.Be bonded together insertion portion and U-joint known by United States Patent (USP) 4.564.254.In this connection, combine by a kind of forked element part of in November, 1989 3M " 4005 pairing the module inserted technical report " fully (Technical Report4005 Super Mate pLuggable Module) and U-joint, and the relative U-joint of forked element part to rotate about 90 ° also be known.Preferably this contact made of flat material is put into terminal box, for example is used for wireless communication and connects.When finishing the connection between two connector components, the forked element part concurs as aciculiform or shaft-like blank area with other connector component.The connection of two blank areas of known contact usually is such: the web of U-joint is asymmetric with respect to the axis of the cable receiving slit of U-joint.
In the U-shaped contact, for insulation-piercing also meshes with cable conductor effectively, the most basic is will produce enough power between two legs, and this contact force will keep a long term.Because cable injects the receiving slit of U-joint, two leg generation strains, importantly this distortion can not surpass elastic limit.Because under different situations, produce plastic deformation, can not provide necessary Elastic Contact power.Having in the practical application of asymmetric web at the U-shaped contact, find out, is asymmetric in the stress distribution of leg and web.Particularly when using the cable of big external diameter, the leg that bears big load or power suffers the insertion of fatigue and cable to cause plastic deformation.This problem may run into when prolonging and/or widening the leg of U-joint.Because this contact is used in the connector of standard size and spacing usually.The size of U-joint can not optionally enlarge.In addition, widen or prolong leg and cause bigger contact force, so that lead may exceedingly be out of shape.
From United States Patent (USP) 4.932.893,4.564.254,4.484.791 or 4.441.779 composite type contact are known, and wherein the U-joint part all has asymmetrical web.Above these problems of discussing do not add discussion in these documents.
United States Patent (USP) Re31.714 or United States Patent (USP) 4.988.311 have described contact, and wherein the leg of U-joint is asymmetric.Leg has special configuration, and purpose is before cable is inserted in the receiving slit the most at last, temporarily cable is kept at an upper portion thereof.The part of the contact cable conductor of leg is symmetrical.
United States Patent (USP) 3.605.072 and 4.084.877 have described the pair of U-shaped contact, and constituting between two adjacent legs in the common plane that receives or enter groove has three legs.United States Patent (USP) 4.084.877 has described an element, and wherein, center leg is a rigidity, if the cable insertion groove in the time, this center leg non-migration.Outside leg is a symmetry, thereby stress distribution also is asymmetric.The element of United States Patent (USP) 3.605.072 has a center leg, and center leg is provided with a microscler enclosed slot.Thereby parallel shank is defined as when cable inserts receiving slit, and they are subjected to bending stress.Because the difference of load categories on the leg, in leg and the web that is connected them, cause different stress distribution.The application's technology comprises that fork-shaped contact and U-joint are plugged together, and the leg that makes the fork-shaped contact is from its free end combine with the leg of U-joint (overgrip).This contact arrangement for example mostly is applied in the wireless communication technology.Utilize other connector component, can reach, realized successively and being electrically connected of first connector component by the U-shaped contact with being connected of all cables.Can set up the other conductive channel that is parallel to existing passage in this way, and needn't be by independent cable cut operation.When the wireless communication system makes digital system into, may use this other communication passage.
It is satisfactory that fork-shaped contact in the above described manner this on U-joint is inserted in past attempts.When forwarding digital system to, be necessary to use the cable of larger diameter lead and insulation, enlarge so that obtain the scope of application.But consequently connector component has identical spacing, makes the leg of fork-shaped contact be subjected to bending, and this bending Deformation Cable IDC in U-shaped displacement contact causes.If insulating material is harder, then curvature effect increases.And the bending of fork-shaped contact can reduce the quality of this electrical connection.
The invention provides a kind of composite type contact, if, produce uniform bending stress although wherein the web of cable reeve U-joint U-joint is an asymmetrical shape.
The contact that is suitable for as the present invention, wherein the web of U-joint is connected on the forked element that is in the about 90 ° of positions of rotation asymmetricly.
By calculating and experiment accident ground is found, when the width of a leg of close another blank area reduces with respect to the width of another leg, on asymmetrical U-joint, can access symmetrical load.As what narrate already, U-joint is design like this: produce enough contact forces when cable inserts, so that insulation is pierced through and displacement by leg, if the width of a leg in this U-joint reduces, being distributed in of bending stress symmetry comprised on the U-joint of web.Particularly under situation about using than large-diameter cable, its lead suffers the danger of excessive deformation when having reduced the cable insertion.
By numerical method (limited element analysis technique), and/or experiment and/or computer simulation test, the proportionate relationship of U-joint both legs width can be determined, so that reach the uniform requirement of stress distribution.
In the present invention, the free end portion of the leg of fork-shaped contact has the surface of inclination, preferably straight inclined-plane, thus make the end of splaying in the side of two legs with chamfering, described side is away from the receiving slit that also faces toward between the leg of U-shaped contact.Can expect to adopt a flexure plane and not adopt straight plane.Can provide two or more inclined-planes furtherly, to obtain the end parts of splaying of leg.In an embodiment of the present invention, the end of the end of splaying can be the obtuse angle, and obtuse angle end width is about half of leg thickness or littler some.
The sharp keen relatively free end of the leg of fork-shaped contact protrudes into the insulating material of distortion, it is in the situation of leg moving direction, thereby has limited the distortion that these legs may leave U-joint.If leg protrudes into insulating material, the configuration of each inclined plane or chamfering applies the component towards cable with respect to the side facing to cable, thereby has avoided the bending of leg.So no matter at the intensive insulating material of the field of conjugate action of two contacts more or less, the present invention provides reliable electrical connection.
According to contact of the present invention following advantage is arranged:
-can avoid the overstress of U-joint;
-in the joint useful life, can maintain contact force;
-unnecessary additional production cost;
-only need smaller change according to the tool of production of contact of the present invention;
-undesirable cable excessive deformation can not take place.
-when being inserted into the U-shaped contact, the bending force that not wishing on the fork-shaped contact occurs can be avoided, and is as the same to large diameter cable;
-just can make by ordinary skill according to fork-shaped contact of the present invention, it does not need to redesign element, and the surcharge of chamfering is little, and particularly suitable is produced by batch.
Then the present invention is described in detail with reference to the accompanying drawings, wherein:
Fig. 1 is the plane graph of a traditional contact that has two U-shaped insulation-displacement contact portions;
Fig. 2 is according to the present invention includes-plane graph of U-shaped insulation-displacement contact portion and fork-shaped contact portion;
Fig. 3 is that Fig. 2 contact rotates about 90 ° plane graph;
Fig. 4 is the plane graph corresponding to the contact of Fig. 2;
Fig. 5 is the zoomed-in view of the U-shaped contact portion sample of Fig. 4 structure;
Fig. 6 is the housing sectional view that has two connectors, and one of them is equipped with according to contact of the present invention.
Fig. 1 has described a traditional contact 10, as is that a flat material constitutes.It comprises two U-shaped insulation- displacement contact portions 12,14, and contact portion 12,14 interconnects by a common web.Contact portion 12,14 comprises leg 18,20 and 22,24 and at they receiving slits 26,28 between separately separately respectively.Just as can be seen, contact portion is symmetrical fully, if cable injects receiving slit 26,28, leg 18,20 and 22,24 is out of shape (not shown) respectively symmetrically.
Fig. 2 and Fig. 3 contact comprise a U-shaped insulation-displacement contact portion 32 and a fork-shaped contact portion 34.Contact portion 32 comprises leg 36,38 and receiving slit betwixt 40. Leg 36,38 interconnects by web 42, and it also links together with contact portion 34.Seen as Fig. 2, the axis of contact portion 34 relative U-shaped contact portions 32 departs from mutually, and rotates about 90 °, thereby obtains web 42 asymmetric configurations.Fork-shaped contact portion 34 comprises leg 44,46 and the receiving slit between them 48, and they are symmetrical structure.Present result is that a cable is inserted in the receiving slit 40 of U-shaped contact portion 32, causes stress to distribute symmetrically.
Fig. 4 contact 50 comprises U-shaped insulation-displacement contact portion 52, and it has approximately parallel leg 54,56, and the receiving slit between them 58. Leg 54,56 interconnects by web 60, and it is to interconnect with 3 embodiment contact portions, 34 identical mode and fork-shaped contact portions 62 with Fig. 2.The related content of contact portion 62 will be described in detail hereinafter.For example it may be advanced on the leg 18 of contact portion 12, so that set up the electrical connection between the contact 10,50, and element 10 and 50 is in (not shown) in the different connector housing partly.The receiving slit 26,28 of contact 10 and the receiving slit 58 of contact 50 can receive the cable (not shown) with traditional approach.Thus, can set up all parallel communication routes, as in the telecommunication system.It has eliminated the certainty that for example changes to digital system and communicating interrupt takes place.
As judging, littler than leg 56 significantly near the leg 54 of contact portion 62.Leg 54 has a mean breadth " a ", and its width corresponding width " b " than leg 56 significantly is little.This leg 56 increases towards the direction width of web 60, and the outward flange 64 of leg 56 is skewed, and the outward flange 66 of leg 54 is parallel to contact portion 52 axis, or is parallel to the axis of groove 58.
The width of web 60 is not constant, its minimum widith C approximate measure below groove 58, and its Breadth Maximum d measures at the another side of contact portion 62.D is bigger than b as can be seen, and C is approximately equal to a.In addition, following size is suitable for contact 50:
Length overall=8.1mm,
Horizontal=the 3.95mm of leg 54,56
（transverse to legs 54，56）
a ＝1.05mm
b ＝1.15mm
c ＝1.05mm
d ＝1.5mm
Sheet material is thick=0.4mm
The sheet material material is a phosphor bronze
Adopt a kind of like this design of U-joint former in the ignorance geometric asymmetry, make the insertion of cable produce distribution in the answering of symmetry, the peak value of load (load peaks) is the same as the bottom as the contact of Fig. 2 and 3 contacts 30 with known contact.
Fig. 5 has showed the example of Fig. 4 U-shaped contact portion, represents with 52a here.It comprises leg 54a.56a and the cable receiving slit 58a between them.Web 60 is an asymmetry, and web bottom 70 for example can be connected to following contact portion, for example is connected to Fig. 4 contact portion 62.Just as can be seen, leg 54a is narrower significantly than 56a.However, not shown if cable injects 58a() unexpectedly the result be that leg 54a lacks than the 56a lateral shift, by the calculating of test, this point is resultant for us.In Fig. 5, initial condition dots, and deformation state is represented with solid line.Bending stress in leg 54a.56a and web 60 distributes and is also roughly even through overtesting and result calculated.
The leg seen in Fig. 2 and 3 44,46 has the 44a.46a of falling the face at its free end, and chamfering 44a.46a produces like this: promptly splay towards the obtuse angle free end that leg 44,46 planes (Fig. 3) have round end in the end.At the outer surface of contact 30, chamfering is facing to the surface that is right after cable receiving slit 40 in the contact 30.Chamfering 63 is illustrated on the fork portion 62 of contact 50 like the table.
Fig. 6 has described to pass the profile of housing 80, holds a row or multi-row contact than housing, and only a contact is illustrated in the recess 82 with 50.The receiving slit 58 of element 50 is suitable for holding lead 84 in the above described manner.Following housing 85 has also been showed the profile that a plurality of contacts are provided, and represents one of them with 10.It is corresponding to the element in Fig. 1 10, and it holds cable 90, and leg and fork-shaped contact portion 62 actings in conjunction of stretching out housing 80.The configuration of the configuration of housing 80,86 and element 10,50 is normally known.
In Fig. 6, can see U-shaped contact site straddle 18 engagements of fork-shaped contact portion 62 and contact 10.The chamfering 63 of the leg of fork portion 62 is placed facing to groove 58 or lead 84 respectively.The end of taper makes the leg of fork portion 62 can expose insulating material 88 around cable 90 like this.The effect of chamfering 63 place situations is such, and leg can bending not leave cable 90, and on the contrary, chamfering further produces the component towards cable 90.
See the described function of not overslaugh of blunt end of the leg of fork portion 62 as further.
Claims (10)
1, a kind of composite type contact, plug connector particularly, comprise the U-joint part, have two approximately parallel legs (36,38), it connects together by web (42), and between two legs, form a cable receiving slit (40), in the time of in described cable insertion groove, cutting edge with the described leg that limits described groove thrusts described cable insulation, and flexibly mesh this lead, preferably fork-shaped second contact portion (34) is facing to described leg (36,38) link together with web (42), it is characterized in that be asymmetric facing to the described web part (42) of the described leg of described U-joint part with respect to the axis of described cable receiving slit (40), make near described second blank area (34; A described leg of described U-joint part (32,52) 62) (36,54,54a) has the width that has reduced than another leg (38,56,56a), when being inserted into described groove (40,58,58a) with the described cable of box lunch, it is uniformly approximate that the bending stress in described U-joint part distributes.
2, according to the contact of claim 1, wherein said second blank area (34,62) is 90 ° a forked element part of relative U-joint part (32,52) rotation.
3, contact according to claim 1, the edge that wherein reduces the described leg (36,54,54a) of width is tending towards substantially parallel to each other.
4, contact according to claim 2, the edge that wherein reduces the described leg (54) of width is tending towards substantially parallel to each other.
5, contact according to claim 1 wherein is approximately equal to described width than shank (54) (a) at described receiving slit (58) and the beeline (C) that connects between the free edge of described web part (60) of described leg.
6, contact according to claim 1, the sheet material of wherein said contact (30,50), if with phosphor bronze or brass, for the cable of 0.32～0.9 mm dia, its thickness is between 0.35～0.5 millimeter.
7, be used to comprise the contact that the plug-type of connector component connects, one of them connector component is the web (42 that has opposite two surfaces, 60) forked type contact (34,62), and a free end has the groove (48) that is formed in it, in order to limit two legs that separate (44,46), and another parts have one at least by web (42,60) the U-shaped IDC contact (32 that is limited, 52), it has leg (36 separately, 38,54,56), be formed at free end and have betwixt cable receiving slit (40,58), the described leg (44 of described Y-piece, 46) be suitable for being used for by its free end and described U-shaped contact (32,52) described leg (36,54) form tightly engagement, the described free end of the described leg of wherein said Y-piece has the inclined-plane that limits chamfering (44a.46a.63) on a side, causes the leg (44 of described fork-shaped contact, 46) freely splay towards it.
8,, wherein be to have straight chamfering according to the contact of claim 7.
9, according to the contact of claim 7, wherein the end of leg is the obtuse angle.
10, according to the contact of claim 9, wherein the thickness of the obtuse angle end of leg (44,46) is not more than half of described web (42,46) thickness approximately.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP4238533.4 | 1992-11-14 | ||
| DE4238534A DE4238534A1 (en) | 1992-11-14 | 1992-11-14 | One-piece contact element |
| DEP4238534.2 | 1992-11-14 | ||
| DE19924238533 DE4238533C2 (en) | 1992-11-14 | 1992-11-14 | Contact element for plug connection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1094193A true CN1094193A (en) | 1994-10-26 |
Family
ID=25920462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93121233 Pending CN1094193A (en) | 1992-11-14 | 1993-11-13 | Integral contact element |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN1094193A (en) |
| IL (1) | IL107585A0 (en) |
| MX (1) | MX9307093A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100384019C (en) * | 2003-11-25 | 2008-04-23 | 康福特仪器（杭州）有限公司 | Electric connector capable of stripping insulation layer |
| CN101532528A (en) * | 2008-03-14 | 2009-09-16 | 安普泰科电子韩国有限公司 | Fork pin structure |
| CN103828129A (en) * | 2011-10-14 | 2014-05-28 | 欧姆龙株式会社 | Terminal |
| CN108232478A (en) * | 2016-12-14 | 2018-06-29 | 勒格朗法国公司 | The electrical connecting element of penetration portion with wire insulation crust |
-
1993
- 1993-11-12 MX MX9307093A patent/MX9307093A/en unknown
- 1993-11-12 IL IL10758593A patent/IL107585A0/en unknown
- 1993-11-13 CN CN 93121233 patent/CN1094193A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100384019C (en) * | 2003-11-25 | 2008-04-23 | 康福特仪器（杭州）有限公司 | Electric connector capable of stripping insulation layer |
| CN101532528A (en) * | 2008-03-14 | 2009-09-16 | 安普泰科电子韩国有限公司 | Fork pin structure |
| CN103828129A (en) * | 2011-10-14 | 2014-05-28 | 欧姆龙株式会社 | Terminal |
| CN103828129B (en) * | 2011-10-14 | 2017-09-12 | 欧姆龙株式会社 | Terminal |
| CN108232478A (en) * | 2016-12-14 | 2018-06-29 | 勒格朗法国公司 | The electrical connecting element of penetration portion with wire insulation crust |
| CN108232478B (en) * | 2016-12-14 | 2020-02-07 | 勒格朗法国公司 | Electrical connection element with a through-penetration of the insulating sheath of an electrical wire |
Also Published As
| Publication number | Publication date |
|---|---|
| MX9307093A (en) | 1994-05-31 |
| IL107585A0 (en) | 1994-02-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |