CN101103495B

CN101103495B - Connector bridge

Info

Publication number: CN101103495B
Application number: CN2004800447132A
Authority: CN
Inventors: M·陶乐
Original assignee: Taller GmbH
Current assignee: Taller GmbH
Priority date: 2004-12-23
Filing date: 2004-12-30
Publication date: 2011-07-27
Anticipated expiration: 2024-12-30
Also published as: AU2004325908A1; EP1831964A1; CN101103495A; AU2004325908B2; DE112004003018A5; DE102004063485A1; WO2006066518A1

Abstract

The invention relates to a method for production of connector bridges with partially-insulated metal contacts and a plastic plate fixing the same. Blade contacts are provide as the metal contacts, a partial insulation is provided thereon and the partially insulated blade contacts are arranged in the plastic plate and/or extrusion coated with plastic.

Description

Connector bridge

Technical field

The present invention relates generally to a kind of connector bridge, especially has the connector bridge of minor insulation metal contact.

Background technology

In the manufacturing of main plug etc., insert the metal contact of power supply point or socket, i.e. plug pin, knife edge type contact etc. must be with how much accurate way settings, and promptly they must be about correctly alignment each other, and has and exceed plug body, accurate desired projection.In order to realize this point, metal contact be arranged in the plastic plate before leader cable contacts, this realizes by for example crimping usually, so, above whole device is molded in PVC to form plug body.The known plastic plate is called the plug bridgeware with plug pin or knife edge type contact.

Although the safety of main plug depends primarily on the quality and the accuracy of plug bridgeware in using, the plug bridgeware is the article of producing in batches, must low-costly make and be convenient to further processed.No matter how given country all is such situation about the standard of main plug.

The main plug that the metal contact that much has minor insulation is arranged.These plugs present exposed metal in the opposite end of plug body, and metal contact is used plastic covered near plug body.This has can prevent that the children that are at play from inserting a half by for example clip or other this type of tool in contact live metal contact at plug, and is subjected to the advantage of electric shock fatal or that threaten life thus.

So far, make the metal contact with minor insulation and the plug bridgeware of plastic plate on the throne that is used to be fixed, especially be very expensive machining process for box type or flat (promptly non-circular) metal contact.Requirement is made in this field and being simplified and/or improvement.

Summary of the invention

The purpose of this invention is to provide a kind of being used for can be for the novel power supply plug bridgeware of market sale.This purpose can realize by independent claims.It in the dependent claims preferred embodiment.

Its inner characteristic is the connector bridge with minor insulation knife edge type contact (being non-circular or flat knife edge type contact), preferably make in multistage processing technology mode, wherein originally contact is provided with initial insulating part, then it is arranged in the plastic plate, perhaps to pre insulated knife edge type contact with plastic moulding in the above to form the substrate of plastic base or connector bridge.Should be pointed out that it singly is not minor insulation knife edge type contact will be inserted in the prefabricated substrate, but by in the above molded or insert and the knife edge type contact that will have a minor insulation spare to be arranged in the holding plate be particularly advantageous.It is shocking that the labour in the minor insulation spare that is included in the knife edge type contact, this method can or can significantly not increase at least makes the total cost that connector bridge needs; In addition, especially to form or minor insulation may be constructed in the zone of the substrate of attached plastic plate or connector bridge, and can realize in the manufacture process better location, just can realize higher productivity ratio by such structure.

In a preferred embodiment, the setting of the formation of minor insulation spare and minor insulation metal contact separates to be carried out; In other words, at first form a large amount of minor insulation metal contact, then before processed respectively with these minor insulation metal contact orientations, and then it is presented to the actual machine of producing connector bridge.This just has the advantage that process for making is separated, even and whole production also need not be stopped under the situation that specific mechanical components needs repairing.

In the top area of metal contact, promptly to provide crimping to connect be feasible and favourable in the inside of plug body when using these metal contact.The crimping connector is outstanding above insulator usually, especially makes in the shape of the insulating part of the metal contact in plastic plate zone to allow more convenient and/or when being positioned in the plastic plate more accurately; This also is applied to be provided with the knife edge type contact of grounding pin for example or flat grounding contact and so on or the situation of contact pilotage at connector bridge, and they are on-insulated in socket region.

Pressure connection terminal preferably is connected to the knife edge type contact by diagonally extending portion, so diagonally extending portion is outstanding from plastic insulation spare usually, or from the widened cross-section towards its extension is outstanding in the plastic plate zone.The big dynamic force that applies when considering crimping, above the physical plane of plastic plate and therefore above the insulation of metal contact or the superincumbent zone of plastic moulding, diagonally extending portion is being set, is having and prevent insulating part and/or plastic plate fracture reliably or the advantage of the cracking of material under high production rate.

Crimping sleeve on the knife edge type contact, the crimping wing or other this crimping contact member preferably with funnel shaped form from be connected or attachment levels stretch upwards principal curvature portion the inserting side insert or the guiding auxiliary member be associated, can be convenient to introduce the bool of wanting attached thus and can significantly reduce the danger that wire harness fluffs simultaneously, thereby not have the be on the hazard danger of life or fatal electric shock of the danger that fluffs from the outstanding wire harness of plug body and user.The guiding auxiliary member preferably is formed on plastic plate originally and/or mounted thereto on one's body.

The local plastic insulating part that centers on the knife edge type contact preferably not only is used to increase the fail safe of master's plug when using, and can be used for simultaneously better at plastic plate zone location knife edge type contact.For this reason, the cross section of widening can be set, so especially the thickness of this cross section of widening is corresponding to the thickness of plastic plate or big or slightly little slightly, and can be configured to for example use groove, rib, convex shoulder or groove across its thickness, the purpose of this structure especially be to prevent minor insulation, maybe may be that nonisulated (ground connection) knife edge type contact twists in plastic plate and/or away from plastic plate axial displacement, the length variations of header contact consequently, and might depart from standard.Widening of cross section is particularly favourable, can increase the processing safety of connector bridge thus.

It is feasible and favourable that metal contact is provided, and it is stamped to form by sheet metal or metalwork 2 crooked the obtaining by making punching press usually, especially has perforation in the plastic insulation zone.This helps to form tight with safe being connected between metal and the ambroin, and wherein metal contact can move with respect to insulating part.In addition, but weight reduction and save material.

In a preferable modification, the free end of metal contact formed to make them concordant with insulating part all.This can prevent that attaching plug from inserting or when socket is extracted the touch spring in the socket etc. be stuck on the insulator, thereby damage insulator gradually or suddenly.

Also require employed minor insulation metal contact in enforcement the method according to this invention is granted asylum, these are the members that are even more important among the present invention, but do not abandon the protection to other associated components therefrom.

Also require the connector bridge own according to the present invention granted asylum.Can expect, connector bridge of the present invention can be by to the plastics around metal or knife edge type contact, and the test of the yield point of the plastic plate on the throne that is fixed and/or solidification range and those make a distinction with there is something special in the present technique field easily.

Also require leader cable with connector bridge according to the present invention and the electrical equipment that is provided with this leader cable are granted asylum.

Now the present invention is described by means of the example in the following accompanying drawing.

Description of drawings

Fig. 1 shows and is in connector bridge in each fabrication stage, have two minor insulation knife edge type contacts according to the present invention;

Fig. 2 shows and is in connector bridge in each fabrication stage, have all minor insulation knife edge type contacts and a nonisulated flat grounding contact according to the present invention;

Fig. 3 shows and is in plastic plate in each fabrication stage, have small surface area according to the present invention and does not have relevant another connector bridge that inserts auxiliary member;

Fig. 4 shows and is in the two poles of the earth connector bridge in each fabrication stage, have many plastic plates according to the present invention;

Fig. 5 show be in each fabrication stage, according to three-electrode power plug bridgeware of the present invention;

Fig. 6 show be in each fabrication stage, according to the two poles of the earth of the present invention connector bridge;

Fig. 7 shows the connector bridge according to the prior art situation.

Embodiment

As shown in Figure 1, total connector bridge 1 with label 1 (Fig. 1 bottom) sign, comprise the knife edge type contact 2 of minor insulation and be used to the plastic plate on the throne 3 that is fixed, and knife edge type contact branch is arranged at (Fig. 1 top) and in being arranged on plastic plate 3 before be provided with plastic insulation spare 2a.

Connector bridge 1 expression is used for corresponding to a connector bridge for example Australian Standard, that have the plug of the two poles of the earth ground connection plug pin connector.Plug pin D exceeds projection, the knife edge type contact 2 of plastic plate and determines according to standard with respect to the size of width B and thickness d etc.The knife edge type contact is stamped to form with suitable copper sheet etc. and has tapering in central authorities, the regional 2a1 of minor insulation (as Fig. 1 top recognizes easily), especially on the knife edge type contact of right side.The knife edge type contact is provided with through hole 2a2 and 2a3 at tapering zone 2a1, and the size of these through holes is made the stability that can or can significantly not reduce the knife edge type contact at least, the still uncured plastic material of also permission heat flows through easily.

The end 2b that thinks to insert the plug pin of power supply point is round according to the requirement of standard.

Above taper 2a1, the metal of knife edge type contact is provided with the part of thickness k, and it tilts to crimping sleeve end 2d corresponding to plastic plate and via extension 2e.Extension 2e carries out the transition to part 2c via convex shoulder 2e1, that is extension 2e is whole thinner and therefore form more soft than part 2c than part 2c.Especially obvious on the right side knife edge type contact of the oblique angle of convex shoulder in Fig. 1 top, but no longer indicate for purpose clearly.

The intermediate shape that is similar to oblique angle 2e1 also is located at the two ends of part 2a1, promptly towards part 2c and part 2b.

But the pressure connection terminal 2d in this example takes the form of crimping sleeve 2d, and its diameter can make the wire harness that will connect insert easily, and this cable fully is rated for desired electric current.As a kind of alternative form of crimping sleeve, can provide crimp surface or other join domain, the zone that for example is used for grappling, lead welding or is welded to connect.

Knife edge type contact in Fig. 1 top is provided with the standard plastic insulating part in the plug pin zone, shown in Fig. 1 central authorities.Thereby, be provided with plastic insulation spare 2a around part 2a1, like this, plastics (if any) are through hole 2a2 and 2a3 or other hole also; And according to the present invention, the shape of working of plastics 2a is made around the single-piece of the molding regions 2c1 of part 2c.

Molding regions 2c1 extends to extension 2e always and is provided with step 2f by convex shoulder 2e1, the receptacle ends of the knife edge type contact of the position that in the injection molding that convex shoulder 2c1 is supported on be used to form plastic plate, accurately limits, and be provided with one and prevent the seal of polymer injection molding compound flash and/or it is supported on the preprocessing plastic plate.Bottom convex shoulder 2f and the zone between the upside 2g of crimping sleeve 2d are provided with the groove 2h that centers on it fully, it can be engaged with the plastic plate of preprocessing, liquid, thermoplastic injection molded material can be flowed into wherein, all be used for the knife edge type contact on the throne in both cases with respect to the plastic plate axial restraint.

Manufacturing according to connector bridge of the present invention is as follows:

At first sheet metal is struck out the knife edge type contact, and with the crimping sleeve bending forming.If desired, can form the knife edge type contact, but form hollow part by bent sheet metal in punching operation without solid material.In this first processing technology step, this metal contact of finishing punching press or manufacturing otherwise is molded in the top to produce the structure shown in Fig. 1 central authorities with plastic material then.

To make in advance then, the metal contact of minor insulation is fed into injection molding machinery, these metal contact keep correct directed and be molded in the top to form substrate 3 with plastic material there.Now connector bridge 1 has been made, and can be fed into the production line of power line, there the power supply wire harness is attached to pressure connection terminal 2d, then the plug body of being made by PVC etc. is molded in around the connector bridge.Groove on the plastic plate of connector bridge 3 makes the PVC material partly or may fully penetrate substrate, thereby substrate is in height accurately located with respect to plug body and kept this location.

As shown in Figure 2, can also produce three utmost points or multistage connector bridge according to the present invention.But under the situation that needn't make specific knife edge type contact minor insulation, promptly under the situation of the grounding contact that indicates as label 4, convex shoulder still can be located at the plastic plate zone in case touch nail on carry out molded to form plastic plate.In this case, for the flat blade of minor insulation, convex shoulder should be with same form or is constructed with similar type at least.Generally speaking, it should be noted that to be provided with around the convex shoulder of plug pin or knife edge type contact rather than the wing of being made by sheet metal 100 is set as shown in Figure 7 can be favourable, even when the metal contact of connector bridge is not provided with the local plastic insulator, also be like this.Think that this itself is exactly creative.

Fig. 2 also shows the transitional region that elbow 5 can be arranged between extension 2e and the crimping sleeve 2d, and this is convenient to the dynamic property by metal contact during a small amount of displacement insertion wire harness of geometric position and/or the raising crimping operation.

The bigger plate 7 that Fig. 2 also showed and can be at first the minor insulation plastic bushing be embedded (be molded enter, be molded in or inserts) plastic plate member 6 and then their insertions especially may be formed together with insertion auxiliary member 8 (for example being the bridgeware shape).About inserting the form of guiding piece 8, the various possible design that can find in other patent that we recommend the reader to submit to reference to the inventor.

Fig. 3 shows that when needed, the connector bridge that is used for various plug body can be used as and has auxiliary member---the commodity of plastic member 6 and buying obtain.

Fig. 4 shows and the basic corresponding connector bridge of the connector bridge of Fig. 2, but it forms two-pole device.If desired, insert the auxiliary member device and can the situation when three main contacts are arranged require or preferably that is similar, and only use two connectors regardless of it.

Fig. 5 shows three knife edge type contacts and directly embeds plastic plate, and wherein two minor insulations and one are provided with the plastics convex shoulder at plastic plate height place.In crimping operation, be especially noticeable around the transition wire 9a that can conveniently distinguish that ground connection knife edge type contact 9 is folded to form by sheet metal.

Fig. 6 shows according to another the two poles of the earth connector bridge of the present invention.

Fig. 7 shows the situation of the prior art that the height that touches nail determined by the attachment on the area supported 101 that is resisted against plastic plate 100.This design is disadvantageous to accuracy and manufacturing, even also like this when not needing to touch the minor insulation spare of nail.

Claims

1. method that is used to make connector bridge, described connector bridge has the metal contact of at least two minor insulations and is used for the fixing plastic base on the throne of described metal contact, it is characterized in that, at least one knife edge type contact is set as metal contact, and for each knife edge type contact provides the minor insulation body, before processed with the metal contact orientation, so that separating, the setting of the formation of minor insulation body and metal contact carries out, be arranged in the plastic base and/or make up substrate by metal contact, thereby make described connector bridge by inserting plastic material with minor insulation.

2. the method for claim 1 is characterized in that, described metal contact is provided with pressure connection terminal.

3. method as claimed in claim 2 is characterized in that, described pressure connection terminal extends by diagonally extending portion.

4. method as claimed in claim 2 is characterized in that, described pressure connection terminal is formed insert auxiliary member.

5. the method for claim 1 is characterized in that, described plastic base is provided with the insertion auxiliary member, to help finally to insert the crimp region of described metal contact.

6. the method for claim 1 is characterized in that, the described minor insulation body of the knife edge type contact of described minor insulation is provided with the cross section of widening in the zone of described plastic base.

7. method as claimed in claim 6 is characterized in that, the metal contact of described minor insulation is provided with groove and/or spring-like extension at the height place of the cross section of widening.

8. the method for claim 1 is characterized in that, described connector bridge is provided with at the uninsulated knife edge type contact of socket region, the cross section that described knife edge type contact is widened with generation with plastic moulding in the above in the zone of described plastic base.

9. the method for claim 1 is characterized in that, but several at least the perforation in the described metal contact with injected plastic.

10. the method for claim 1 is characterized in that, described metal contact tilts in such a way in described minor insulation body region, that is: described minor insulation body is always concordant with the free end of described metal contact.

11. the knife edge type contact with minor insulation body is used for making connector bridge according to each described method of aforementioned claim.

12. connector bridge, described connector bridge has the metal contact of minor insulation and is used for the fixing plastic base on the throne of described metal contact, wherein, the several at least hardened plastic zones that separate with described plastic base that are provided with in the described metal contact.

13. a leader cable, this leader cable is provided with the plug with connector bridge according to claim 12.

14. an electrical equipment, the described leader cable of the with good grounds claim 13 of this electrical device.