CN1694306A - Clamping contacting element, insulation displacement connector, connector terminal block and method of manufacture thereof - Google Patents
Clamping contacting element, insulation displacement connector, connector terminal block and method of manufacture thereof Download PDFInfo
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- CN1694306A CN1694306A CNA200510067909XA CN200510067909A CN1694306A CN 1694306 A CN1694306 A CN 1694306A CN A200510067909X A CNA200510067909X A CN A200510067909XA CN 200510067909 A CN200510067909 A CN 200510067909A CN 1694306 A CN1694306 A CN 1694306A
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- cable connector
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/24—Connections using contact members penetrating or cutting insulation or cable strands
- H01R4/2416—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type
- H01R4/2445—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type the contact members having additional means acting on the insulation or the wire, e.g. additional insulation penetrating means, strain relief means or wire cutting knives
- H01R4/245—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type the contact members having additional means acting on the insulation or the wire, e.g. additional insulation penetrating means, strain relief means or wire cutting knives the additional means having two or more slotted flat portions
- H01R4/2454—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type the contact members having additional means acting on the insulation or the wire, e.g. additional insulation penetrating means, strain relief means or wire cutting knives the additional means having two or more slotted flat portions forming a U-shape with slotted branches
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/24—Connections using contact members penetrating or cutting insulation or cable strands
- H01R4/2416—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type
- H01R4/242—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type the contact members being plates having a single slot
- H01R4/2425—Flat plates, e.g. multi-layered flat plates
- H01R4/2429—Flat plates, e.g. multi-layered flat plates mounted in an insulating base
- H01R4/2433—Flat plates, e.g. multi-layered flat plates mounted in an insulating base one part of the base being movable to push the cable into the slot
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Abstract
The cable connector (19) for making an electrical contact with a cable conductor (2) of a cable (1) comprises two legs (190), at least one of which can make electrical contact with a cable conductor (2) inserted into the cable connector (19) into a contacting position, and the two legs (190) are capable of exerting a contacting force on a cable conductor (2) in the contacting position for holding the cable conductor (2) in the contacting position. When there is no cable (1) inserted in the cable connector (19), the legs (190) exert an non-vanishing initial force on each other. In other words, the cable connector has two prestressed legs. Ends of the legs press against each other with some force prior to the insertion of any cable into the connector. The cable connector can, e.g., be used as an insulation displacement connector and in connector terminal blocks. Methods for manufacturing such a cable connector (19) comprise methods, in which an elastic deformation in at least one section of the cable connector (19) is performed, while another section of the cable connector (19) is plastically deformed. Preferably, the cable connector is integrally made from one piece of bent sheet metal.
Description
Technical field
The present invention relates to the field of low-voltage cable connection and cable connector, and be specifically related to clamping contacting element (clamping contacting element), insulation displacement connector and connector terminal block and manufacture method thereof.It relates to the method and apparatus according to claim beginning clause.This equipment for example finds application at industrial cabinet or in resident's facility.
Background technology
So as can be known low pressure cable connector from European patent application EP 0 893 845 A2 that publish.This connector is insulation displacement connector (IDC), does not promptly need to peel off the connector of cable insulation before the connection that proceeds to the cable conductor.IDC has contact spring, and this contact spring has two spring legs that are used to contact cable.The insulation that is inserted into the cable among the IDC is cut by means of this leg wears (cut through), makes this cable conductor stop (end up) in the slit of opening that forms between two legs, also keeps it thereby make this leg electrically contact it.
In order to provide sufficiently high power to cut the cable insulation and to keep the cable conductor, in EP 0 893 845A2, propose: the power leaf spring that separation also is provided except the spring that forms by described spring leg.The leaf spring of this separation is configured to resist further opening of this slit.Like this, can be used for cutting insulation and force rate that connector is remained in the contact big when the contact spring with two spring legs is finished this task without this power leaf spring.Because the design and the material of this contact spring and power leaf spring can be selected independently, so the minimizing of cable connector width can be implemented.Perhaps, change kind of a mode and express, when the constant width of cable connector, can realize the cutting and the hold facility that strengthen.
The shortcoming of this cable connector is: must make and assemble two separated portions (contact spring adds power spring), and can be quite limited by the diameter range of the cable conductor of this cable connector safety contact.
Summary of the invention
Therefore, the objective of the invention is to create a kind of method that does not have the cable connector of above-mentioned shortcoming and be used for cable is electrically contacted.Will provide a kind of cable connector and being used for method that cable is electrically contacted, its can be used to contact safely the wide region conductor diameter cable, and need space in a small amount simultaneously.In addition, comprising the connector terminal block of this cable connector and the production method of this cable connector is provided.
Equipment and method with feature of claim have solved this problem.
According to the present invention, be used to carry out the cable connector that the cable conductor with cable electrically contacts and comprise two legs, its at least one can be inserted into the cable conductor that enters contact position in this cable connector and electrically contact, and these two legs can apply contact force to the cable conductor that is in contact position.This cable connector is characterised in that when not being inserted into the cable of this cable connector, described leg applies the starting force of non-zero mutually.In other words, this cable connector has two by the leg of prestress.The end of described leg is exerted pressure mutually with certain power before any cable inserts this connector.
Contact force can be the contact force that is used for the cable conductor is remained on contact position.Cable connector can electrically contact with one or more cable conductors, and promptly can have the cable conductor to contact by cable connector two, three or more cables.
Cable connector with leg of prestress provides such connector: it can electrically contact with the cable of relative broad range cable size (cable conductor diameter), has width identical with known connector and cardinal principle size simultaneously; Perhaps in other words, the width of this cable connector or cardinal principle size can be reduced, and still allow to connect safely simultaneously the cable conductor diameter of same scope; Perhaps, this cable connector provides both combinations.Narrower connector or connector block allow the connector of greater number on identical main line (rail) length or connector block and allow the connection of the increase number in identical cabinet space thus.
Cable connector according to the present invention has the power shift characteristics (force-displacement-characteristic) of the opening of two relative legs, described two legs promptly have when touching or when does not also open in the slit between the end that is formed at described leg in their end (tip) greater than zero starting force at these two legs when zero lap.
Contact force when this means the little opening between the end of leg is bigger than the contact force when not having prestressed same little opening, and/or contact force when the big opening of the maximum allowable stress level that reaches the leg material is littler than the contact force when not having prestressed same big opening.
Maximum allowable stress level is to be limited by the transformation from the elastic deformation of leg to the plastic deformation of leg.Because cable connector will be used multiple times usually, that is to say that therefore the repeatedly insertion and the extraction of cable are necessary to remain in the Hookean region, this be because otherwise later on thin cable will no longer be contacted safely.
Contact cable safely and mean contact on the one hand, make when the rated current overall presure drop on the connector than required little of the standard that is suitable for enough little contact resistance.This needs certain minimum contact force.On the other hand, the cable conductor can not damaged by excessive power, and this is unsubstantial, and is even more important will be touched by (stranded) cable conductor of strand the time.If the cable of insulation will be touched and cable connector is insulation displacement connector (IDC), be independent of the cable conductor diameter so, must always there be enough power to be used to remove the cable insulation; Preferably, this power also will provide by described leg.
The starting force of this cable connector (skew of power shift characteristics) and total spring constant (slope of power shift characteristics) can be selected so that optimized little and cable connector light weight can be designed.For example: regulate starting force and spring constant so that the cable conductor of the minimum diameter that will be touched keeps with minimum required power, and the cable conductor of the maximum gauge that will be touched is widened slit between this leg just so far so that just also not generation of plastic deformation.
If cable connector is made by sheetmetal (sheet metal), the present invention considers comparatively effectively using of metallic sheet material so, specifically, for identical connector width, wider range of cable size, perhaps for the cable size of same range as, the width of connector is less.
Additional advantage is: insert the required power of cable (this power must be provided by the operator who uses cable connector to carry out the cable connection usually) and can be selected as less, and being used to of being employed, the scope of power of cable of inserting the cable conductor diameter of a scope also can be selected as lessly, and this causes this connector comparatively to meet the operation of ergonomics.
Cable connector can be formed by integral body, and perhaps it can comprise several sections.Specifically, described power can (mainly) be provided by described leg, is perhaps provided by additional power spring.
Preferably, two legs all contact the cable of the insertion that is in contact position.Preferably, but not necessarily, whole leg all is an electrical conductivity.
Preferably, this cable connector is designed to make it to have the shape of symmetry.
In a preferred embodiment, this cable connector has the insertion opening, is used for that the cable conductor is inserted into this cable connector and enters contact position.By means of such insertion opening, might provide the required power of opening between the described leg in slit by means of the insertion campaign of cable.In the situation of IDC, this opening can advantageously be used as the cutting element that is used to remove the cable insulation simultaneously.Replace inserting opening, people also can consider to be used to open other device in slit, for example, and as in having the standard U-shaped folder of two turning arms.
In a preferred embodiment, this cable connector is designed to and the cable conductor of diameter between minimum diameter and maximum gauge electrically contacts, wherein said starting force reaches at least 5% of the contact force that applies on the cable conductor of the minimum diameter that is in described contact position, especially, at least 10% or at least 20%.Preferably, it can also be at least 50% of described power.
In a further advantageous embodiment, this cable connector is designed to and the cable conductor of diameter between minimum diameter and maximum gauge electrically contacts, and wherein arrives the insertion of described contact position by the cable conductor of maximum gauge, and cable connector is strain only.
Connector terminal block according to the present invention is characterised in that: it comprises at least one according to cable connector of the present invention and have corresponding advantage.
The production method that is used for the cable connector that the cable conductor with cable electrically contacts, this cable connector comprises two legs, its at least one can with insert the cable conductor that enters contact position in this cable connector and electrically contact, and wherein said two legs can apply contact force to the cable conductor that is in contact position, and this method comprises: these two legs are formed and are provided with so that they do not apply the starting force of non-zero mutually when having cable to be inserted between them.
This method can be used in particular for making according to cable connector of the present invention.
Preferably, during the manufacturing of described cable connector, the elastic deformation at least one part of cable connector is
A) by variations in temperature, and/or
B) in another part of cable connector during by plastic deformation, and/or
C) carry out when two legs relative to each other are fixed, making has prestressing force between two legs in cable connector under condition of work.In method situation a), one or more variation of temperature can be employed.
In according to method method for optimizing a)
At least one of described two legs comprises marmem or bimetallic, and at least one manufacturing step be performed in pre-under the different temperature of the temperature that is presented under the condition of work of cable connector, and/or
The modulus of elasticity of the material of at least one of described two legs changes by variations in temperature.
According to method b) method for optimizing in, described contact element is the bool of sheetmetal.
According to method c) method for optimizing in, described two legs are welded in each other when exerting pressure mutually.
The method that is used to electrically contact the cable with cable conductor according to the present invention comprises the following step:
At first, before opening, the slit that is formed by two legs uses two legs of the starting force of non-zero to cable connector, and then
Use additional power to described leg so that open this slit and be basically perpendicular on the direction in described slit mobile cable conductor between two legs, be in contact position up to this cable conductor, at least one of described here cable conductor and described leg electrically contacts.
Further preferred embodiment and advantage reveal from dependent claims and figure.
Description of drawings
Below by illustrating in greater detail the present invention at the preferred embodiment shown in the included accompanying drawing.Described illustrating:
Fig. 1 has the perspective schematic view of the insulation displacement connector (IDC) of cable;
Fig. 2 according to prior art (dotted line) and according to the present invention the power shift characteristics of (solid line);
Fig. 3 is schematically as the contact resistance of the function of contact force;
Fig. 4 is by the tangent plane (cut) of cable connector, the maximum stress zone when it illustrates cable and inserts;
The schematic diagram of first manufacture method of Fig. 5 a-5d cable connector;
The schematic diagram of second manufacture method of Fig. 6 a-6e cable connector;
The schematic diagram of the 3rd manufacture method of Fig. 7 a-7e cable connector;
The schematic side elevation of Fig. 8 IDC;
The schematic perspective view of the part of the connector terminal block that Fig. 9 partly decomposes.
Used these reference symbols and their implication are summed up in the tabulation of reference symbol among the figure.Put it briefly, similar or functionally similar part is given identical reference symbol.Described embodiment is intended to as an example rather than will limits the present invention.
Embodiment
Fig. 1 is schematically illustrated according to the perspective view with cable connector 19 of cable 1 of the present invention, and wherein cable 1 has cable conductor 2 and cable insulation 3.Cable connector 19 is that cutting clamps connector 19, and it is designed as insulation displacement connector 20 (IDC).Cable connector 19 has two legs 190, its terminal slit 192 that forms.By inserting opening 196, cable 1 can be inserted in the slit 192, and described opening 196 also plays the effect of the cutting element that is used to remove insulation 3.When cable conductor 2 contact legs 190, cable conductor 2 arrives contact position, and remains on contact position by the power that is applied to conductor 2 via leg 190.This power is turned to two empty arrows by symbol in Fig. 1.It is substantially perpendicular to this cable direction of motion M during insertion.Cable 1 the insulation 3 be cut before and before this cable is in contact position, dot.The width of cable connector 19 is represented by the arrow that has letter w.
According to the present invention, leg 190 by having prestress does not promptly not only touch when having cable to be inserted into each other, and when not having cable to be inserted into the leg 190 to applying starting force each other, with respect to the known cable connector of the cable conductor diameter that is suitable for connecting given range, width W can be reduced.Empty arrow among Fig. 1 also symbolism this starting force.
Fig. 2 illustrate according to prior art (dotted line) and according to the present invention the power shift characteristics of (solid line).Starting force f0 according to prior art is zero.This causes contact force f1 at the minimum conductor diameter d1 place that is wanted.Largest conductor diameter d 2 places being wanted cause contact force f2.
According to the present invention, starting force f0 ' is greater than zero.This causes contact force f1 ' at the minimum conductor diameter d1 place that is wanted, and its comparable f1 is big, even spring constant (slope of line) beguine is medium and small according to the situation of the cable connector of prior art.Therefore, by more weak and therefore less spring, the safe contact of locating at minor diameter (d1) can be implemented.
According to the present invention, cause contact force f2 ' at the d2 place of the largest conductor diameter of being wanted, it can be selected to littler than f2.Like this, might easily avoid excessive masterpiece to be used on the cable of major diameter (d2), thereby can realize safety contact and do not damage the cable conductor.And cable conductor 19 can be designed to only take place the elastic deformation of cable connector when d2.
Because the availability of spring constant (=slope) and two parameters of starting force f0 ' (=(just) skew), this power shift characteristics can be designed in optimized mode.
The contact resistance R of the schematically illustrated function as contact force F of Fig. 3.By cable connector according to prior art, can incidentally be, contact force f1 is so little so that has carried out the dangerous of high contact resistance R with the cable of little conductor diameter d1 and contact, although realized very low resistance by very high contact force f2 in the situation of largest conductor diameter.
By means of using according to the cable connector with less spring constant (referring to top Fig. 2) of the present invention, contact force f1 ' can easily be selected as bigger than f1, thereby causes the contact that is greatly improved when little conductor diameter d1; Can and that f2 ' is selected to is more much smaller than f2, although the poor δ F of power F only causes the very little δ R that reduces of contact resistance R, so still realized enough little contact resistance for major diameter d2.In addition, even for major diameter (d2), only moderate insertion force is required, and for the diameter of same range as, the scope of the power that be employed is much smaller, and the both causes the operability that is enhanced of this cable connector.
Fig. 4 illustrates the tangent plane by cable connector 19, maximum stress district 195 when it illustrates the cable insertion.This tangent plane is distributed in the plane perpendicular to the direction of motion M of cable in the insertion process (referring to Fig. 1).This cable connector has the shape about line of symmetry S symmetry.Be shown in dotted line the leg 190 before cable inserts, solid line illustrates the leg 190 when cable is inserted into contact position.
Cable connector 19 is " U " shape basically, and it has the crooked Bb in the end, should " U " have preferred straight bottom line between this bending: and have the bent Bt of bending near the end 191 at leg 190.Between crooked Bb in the end and the bent Bt of bending, should " U " preferably have straight shape.Find from numerical simulation, for this " U " shape cable connector 19, the inboard of maximum stress district 195 crooked Bb the end of at.
The scope that is connected to the cable diameter of cable connector 19 has been determined its overall size and particularly its width W.This is because (1.) deformation of these two legs when maximum allows that cable is inserted into will remain in the elastic limit of material.If maximum allows that the insertion of cable will cause plastic deformation, then for potential use subsequently, for example insertion of reduced size cable, this connector will be damaged.
Though when maximum allowed that cable is inserted into, the deformation of this connector must remain in the elastic limit, when the cable of minimum admissible dimension is inserted into, (2.) available sufficiently high contact force must be arranged.
According to prior art, because the edge of two legs just is at most and touches (zero opens displacement D) before any cable inserts, the required minimum contact force (f1 among Fig. 2) of minimum cable defines the spring constant that is used for two openings between the leg and therefore also defines the power (Fig. 2 f2) that maximum sized insertion cable is experienced.As a result, according to actual cutting force needs and contact resistance needs, this power (f2) can not freely be selected (referring to Fig. 3).Common resulting power will be than the required minimum force of enough low contact resistance big (referring to Fig. 3).
The concrete size of given connector 19 and geometry are (for example, as in Fig. 4), the combination of (drawing from the specification of wanting connected minimum cable size) spring constant and (be used for wanting connected Hawser size) maximum open requires to define the maximum strain state that material stands.This maximum strain state is reached when the transformation from elasticity to the plastic deformation.Usually the inside radius place of this maximum strain crooked Bb end of at is reached (referring to Fig. 4).
When identical needs will be satisfied, have two kinds of methods to be taked to reduce strain level except the present invention basically: (1.) increased the radius of end bending, and perhaps (2.) increase the length (along line of symmetry S) of the width and the leg 190 of leg 190 simultaneously.First (1.) have increased the width W of connector, and this is very unfavorable.Second (2.) have increased the quality of cable connector and reduced opens space (its qualification can be inserted the maximum external measurement of the cable in the cable connector) in the connector.
According to the present invention, this problem is differently solved.The leg of prestress is used, and it is worked as shown above.
Fig. 5 has schematically delineated first manufacture method of cable connector 19.In order to realize the easy and effective manufacture method of cost of this connector, preferably make this connector by cutting and crooked subsequently sheetmetal.Fig. 5 illustrates first schematic diagram that may make sequence.Sheetmetal 30 and connector are shown in the tangent plane on the plane of the cable direction of motion (M) (referring to Fig. 1) during insert with cable, and it is corresponding to the plane (referring to Fig. 1) perpendicular to slit 192.
A suitably sheetmetal 30 of cutting has been shown among Fig. 5 a.By plastic deformation (black arrow), crooked Bb is formed at the bottom of two legs 190 and two, sees Fig. 5 b.Preferably, plastic deformation is such, and it will almost touch the end of leg 190 then each other.Chain-dotted line has been described the line of symmetry of connector.Leg 190 shown in Fig. 5 c then near its end by plastic bending (black arrow), leg 190 is opened (empty arrow) by elasticity simultaneously.By like this, two bent Bt of bending are formed, and two legs touch each other at their end, and leg 190 is seen Fig. 5 d by prestress.Two starting forces that empty arrow will indicate leg 190 to apply mutually among Fig. 5 d.
Second makes sequence is illustrated in Fig. 6 with the representation with Fig. 5 same type.A sheetmetal 30 that suitably cuts is illustrated in Fig. 6 a.By plastic deformation (black arrow), two crooked Bt of item are formed, and see Fig. 6 b, and it is positioned near the end (engagement edge) of two legs that will be formed.Crooked Bb forms (black arrow, Fig. 6 c) by plastic deformation at the bottom of one then.Angle that it should be noted that the crooked Bb in end place is selected to bigger than making this end accurately reach the angle of dot-dash line of symmetry.
Make second, during the crooked Bb in the last end (Fig. 6 e), another leg flexibly opened (with respect to the bottom of " U " that will be formed) so that relative leg can be bent to another leg before the identical but opposite angle of angle that is bent, see Fig. 6 d.In case the elasticity of first curved leg is opened and is released, two ends of relative leg are exerted pressure mutually with starting force.In Fig. 5, the connector with leg of prestress is made (seeing Fig. 6 e) like this.
The 3rd makes sequence is illustrated in Fig. 7 with the representation with Fig. 5 and Fig. 6 same type.A sheet metal 30 that suitably cuts is illustrated in Fig. 7 a.As in the program of Fig. 6, by plastic deformation (black arrow), two bent Bt of bending are formed, and see Fig. 7 b, and it is positioned near the end (engagement edge) of two legs that will be formed.Near the dot-dash line of symmetry, (black arrow, Fig. 7 c) forms recess Bd by plastic deformation then.This central recess Bd points to the end of leg with the position that stops.Then, crooked Bb forms by plastic deformation at the bottom of two, makes two legs towards being bent each other, preferably touches each other at line of symmetry up to them, sees Fig. 7 d.
At last, two legs are maintained at their position, and the direction of center curvature reverses by moulding living deformation (black arrow, Fig. 7 e), make it point to away from the end of leg.During recess Bd reversed by plastic deformation, elastic deformation (not being illustrated) took place near end bending.As a result, the end of relative leg is exerted pressure mutually with starting force.Connector with leg of prestress is formed like this.Typically, little shown in depth ratio Fig. 7 of recess Bd.
Outside described manufacture method (Fig. 5,6,7), other method that has several people to expect, it has realized identical purpose.What such manufacturing sequence was common is, at the production period of cable connector, the elastic deformation of at least a portion of workpiece is performed, and another part of workpiece plastically is out of shape.In Fig. 5, leg 190 is opened, and make that the elastic deformation at crooked Bb place takes place the end of at, and the end of leg is by plastically crooked.In Fig. 6, the elastic bending (opening) of crooked Bb takes place at the bottom of one, and the bending of second end produces by plastic deformation.And in Fig. 7, during (plasticity) counter-rotating of elastic strain at recess Bd at the crooked Bb in end place, take place.
In these of the IDC of prestress connector are made, utilized not only after connector is done, and during manufacture process itself, made the possibility of workpiece strain.
Step indicated in the above manufacture method needn't fully be performed with described order.For example, in Fig. 6, also may at first make the crooked Bb (seeing Fig. 6 c) in first end and provide bending bent Bt (seeing Fig. 6 b) then.Perhaps, in Fig. 7, at first can be made into central recess Bd (seeing Fig. 7 c), and the bent Bt of bending be done (seeing Fig. 7 b) then.
In addition, needn't have two at the bottom of crooked Bb; Crooked Bb can be enough at the bottom of one.And connector also needn't have the shape of symmetry.
The possibility that also has the connector of many manufacturing prestress.For example, people can use marmem, and it converts its shape to by heat treatment shape (prelearned shape) of certain pre-study.Therefore, forming (as yet not prestress) connector with the different temperature place of connector working temperature of imagination, making when cooling or when being heated to temperature corresponding to condition of work, this its shape of connector change.Replace memorial alloy, perhaps except memorial alloy, bimetallic also can be used in an identical manner.
Another possibility will be for example by welding, by bonding, perhaps relative to each other fixing two legs that separated originally by mechanical fixation, this leg was exerted pressure by (flexibly) mutually simultaneously, and making has a prestressing force between two legs of after fixing this cable connector.
Also having another kind of possibility will be that handle provides the power spring of the separation of starting force to be attached to two legs, and before any cable inserted, leg was exerted pressure mutually by described power.In such situation, this leg itself can, but be not necessary, have initial prestressing force.The spring clip (spring clamp) around the U-shaped connector as power spring can be used for this purpose.
Fig. 8 illustrates the schematic side elevation of IDC or bonder terminal, and it can be in conjunction with connector according to the present invention.
The task of this bonder terminal is that cable 1 is electrically contacted, and this cable 1 has cable conductor 2 and cable insulation 3.IDC comprises guiding device 4, and it is used to hold the terminal 1a of cable 1 and is used for the terminal 1a of cable 1 is moved to cutting element 5 and clamping contacting element 19.Clamping contacting element 19 is combined with and will electrically contacts to the contact element 6 of cable conductor 2 and the function that will keep the holding device 18 that cable conductor 2 and contact element 6 electrically contact, and it is realized by the clamping between two legs of this connector 19 in this case.Cutting element 5 cuts by means of its cut edge 5a and wears cable insulation 3, makes contact element 6 can electrically contact cable conductor 2.Preferably, cutting element 5 and connector 19 are combined into a unit, as, for example shown in Fig. 1.Contact element 6 is in and the electrically contacting of electrical conductivity interconnection element 13, to be provided to another electric device, for example electrical connection of another IDC.
The operator who is operatively connected the device terminal provides and moves the induction element 4 that has the terminal 1a of cable and cut insulation 3 and the starting force of the leg of antagonism prestress, and be provided for opening the necessary power of the additional force in slit between the leg, with such as contact with keep cable connector 2.Instrument 14 for example resembles the conventional tool of screw driver, can the person of being operated use, thereby preferably comes mobile guiding device 4 with lever action, as shown in Figure 8.Therefore, guiding device 4 has the opening that is used for instrument 14 11 as power receiving system 11.The pivoting point 15 that is used for lever action is provided by the housing 10 of IDC at Fig. 8.How arrow indication instrument 14 when IDC is operated is moved.For example, instrument 14 also can laterally be moved and be slided rather than be come mobile guiding device 4 with lever action.
When IDC will be operated, the cable that cable 1 is inserted into guiding device 4 held opening 16, and instrument 14 is entered into power receiving system 11.When guiding device 4 was moved, extra power must be employed with antagonism spring device 7 then, and it is illustrated as helical spring 7 in Fig. 8, and it is maintained at spring and keeps thing 7a, between the 7b.Spring keeps thing 7a to be integrated in the guiding device 4, and spring keeps thing 7b to be fixed to housing (not shown among Fig. 8).Moved through certain length and cable conductor 2 and connector 19 at guiding device 4 and be in and contact and be connected after device 19 keeps, locking mechanism 8 will stop the action of spring device 7.Locking mechanism 8 is provided with the tip 8 that elasticity keeps by guiding device 4 among Fig. 8.When locking mechanism 8 was triggered, because holding device 18, cable 1 was in the safety of contact element 6 and contacts.
Under this last, contact condition (not shown among Fig. 8), the power that is applied on guiding device 4 and the cable 1 by spring 7 is zero or is reduced greatly at least.The operator will feel and may hear the triggering of locking mechanism 8.If the operator will stop his action before the triggering of locking mechanism 8, spring 7 will move, so that guiding device 4 and cable 1 are pushed back or preferably back into initial condition to initial condition.Therefore not have the situation of contact to see easily between cable conductor 2 and the contact element 6, and if spring device and locking mechanism suitably designed and be provided with, then bad contact can not take place, and so can successfully be avoided.
Fig. 9 illustrates the perspective view of connector terminal block, and it is intended to be used for two IDC and comprises according to an IDC of the present invention.For reason clearly, the left side of connector terminal block is illustrated as the state that does not assemble IDC that is in.The housing 12 of connector terminal block comprises instrument and inserts opening 17, and it also provides pivotal point, is used for the lever action of institute's insertion instrument.Housing 12 also comprises cable and inserts opening 16.Spring device 7 is leaf springs, and preferably by the spring steel manufacturing, it comprises locking mechanism and other opening mechanism.
In IDC shown in Figure 9, the terminal 1a of guiding device 4 and cable is moved with respect to housing 12.Guiding device 4 can be made single-piece by polymeric material.IDC comprises cutting and clamps connector 20, and it combines the function of cutting element 5 and contact element 6 and holding device.Connector 20 has cutting area 198, and insulation is cut at this, and contact zone 199, conductor herein in the electrically contacting of connector 20.Cutting clamps connector 20 and can be formed by a metal.Clamp the end of connector 20 in the cutting relative with cut edge 5a, cutting clamps connector 20 and is electrically connected to electrical conductivity interconnection element 13, and it is a sheetmetal preferably, and may be a sheetmetal identical with connector 19,20.When the both sides of connector terminal block all were equipped with IDC, a single piece of metal can be used as and be used to make two interconnective electrical conductivity interconnection elements 13 of IDC, and described IDC can be by whole formation mutually.
The typical range of the cable conductor diameter of the cable that is touched is 0.75mm
2To 1.5mm
2Being applied to insertion is in 50N arrives the scope of 100N or 150N according to the exemplary force on the maximum gauge cable in the connector of the present invention.For the minimum diameter cable, typical power scope is between 10N and 30N.Starting force can be typically between 0.5N and the 5N or the scope between 1.5N and the 15N.
The reference symbol table
1 cable
The end of 1a cable
2 cable conductors
The insulation of 3 cables
4 guiding devices
5 cutting elements
The 5a cut edge
6 contact elements
7 spring devices, spring
The 7a spring keeps thing
The 9b opening
10 (cable connector) housing, insulation shell
11 power receiving systems, opening
12 (connector terminal block) housing
13 electrical conductivity interconnection elements (current bar (current bar))
14 instruments
15 pivoting points
16 (connector terminal block or guiding device) cable inserts opening
17 instruments insert opening
19 cable connectors; Clamping contacting element
20 cuttings clamp connector
30 sheetmetal spares
The leg of 190 cable connectors
The end of the leg of 191 cable connectors
192 slits
195 maximum stress districts
196 insert opening
198 cutting areas
199 contact zones
Bending at the bottom of the Bb
Bt bending song
The Bd recess
D opens displacement
The minimum diameter of d1 cable conductor
The maximum gauge of d2 cable conductor
F power
δ F power poor
F0, f0 ' starting force
F1, f1 ' contact force
F2, f2 ' contact force
M inserts travel direction
The R contact resistance
δ R contact resistance poor
The S line of symmetry
The width of W cable connector.
Claims (17)
1. a cable connector (19), be used for electrically contacting with the cable conductor (2) of cable (1), comprise two legs (190), its at least one can be inserted into the cable conductor (2) that enters contact position in the described cable connector (19) and electrically contact, and wherein said two legs (190) can apply the cable conductor (2) that is in described contact position contact force (f1 '; F2 '), be characterised in that when not having cable (1) to be inserted into cable connector (19), described leg (190) applies the starting force (f0 ') of non-zero mutually.
2. cable connector as claimed in claim 1 (19), be characterised in that two legs (190) all be inserted into the cable conductor (2) that enters contact position in the cable connector (19) and electrically contact.
3. as the cable connector (19) of claim 1 or claim 2, each that is characterised in that described two legs (190) all has end (191), forms slit (192) by these two ends (191).
4. as the cable connector (19) of one of above-mentioned claim, be characterised in that it has the shape of symmetry.
5. as the cable connector (19) of one of above-mentioned claim, be characterised in that it has insertion opening (196), be used for that cable conductor (2) is inserted into described cable connector (19) and enter described contact position.
6. as the cable connector (19) of one of above-mentioned claim, be characterised in that it is the sheetmetal of a bending.
7. as the cable connector (19) of one of above-mentioned claim, be characterised in that: it has cutting element (5), is used to cut the cable insulation (3) of wearing cable (1).
8. as the cable connector (19) of one of above-mentioned claim, be characterised in that it is designed to and the cable conductor (2) of diameter between minimum diameter (d1) and maximum gauge (d2) electrically contacts, and wherein said starting force (f0 ') reaches at least 5% of contact force (f1 ') on the cable conductor (2) that is applied to the minimum diameter (d1) that is in described contact position, especially, at least 10% or at least 20%.
9. as the cable connector (19) of one of above-mentioned claim, be characterised in that: it is designed to and the cable conductor (2) of diameter between minimum diameter (d1) and maximum gauge (d2) electrically contacts, and wherein insert described contact position by the cable conductor with maximum gauge (d2), cable connector is strain only.
10. a connector terminal block is characterised in that it comprises at least one cable connector according to one of aforesaid right requirement (19).
11. connector terminal block as claim 10, be characterised in that it comprises electric insulation housing (12), be used to hold described at least one cable connector (19), and further comprise electrical conductivity interconnection element (13), be used for described at least one cable connector (19) is electrically connected to another electric device.
12. a manufacturing is used for the cable connector (19) that the cable conductor (2) with cable (1) electrically contacts, specifically, method according to the cable connector (19) of one of claim 1 to 9, described cable connector (19) comprises two legs (190), its at least one can be inserted into the cable conductor (2) that enters contact position in the described cable connector (19) and electrically contact, and by described two legs (190), can apply the cable conductor (2) that is in described contact position contact force (f1 '; F2 '), wherein said two legs (190) are formed and are provided with so that when not having cable to be inserted between their (190), they apply the starting force (f0 ') of non-zero mutually.
13., be characterised in that during the manufacturing of described cable connector (19) that the elastic deformation at least one part of cable connector (19) is as the method for claim 12
A) by variations in temperature, and/or
B) in another part of described cable connector (19) during by plastic deformation, and/or
C) carry out when relative to each other being fixed at described two legs (190), to make having prestressing force between two legs (190) described in the cable connector (19) under condition of work.
14. as claim 13a) method, wherein
At least one of described two legs (190) comprises marmem or bimetallic, and at least one manufacturing step is carried out under the temperature different with the temperature that presented under the condition of work of cable connector (19), and/or
The modulus of elasticity of the material of at least one of described two legs (190) changes by described variations in temperature.
15. as claim 13b) method, wherein contact element (19) is the bool of sheetmetal.
16. as claim 13c) method, wherein said two legs (190) are welded in each other when exerting pressure mutually.
17. a method that is used to electrically contact the cable (1) with cable conductor (2) comprises following steps:
At first, before open in the slit (192) that is formed by described two legs (190), use two legs (190) of the starting force (f0 ') of non-zero, then to cable connector (190)
Use additional power to described leg (190) so that open slit (192) and on the direction that is basically perpendicular to described slit (192) between two legs (190) mobile cable conductor (2), be in contact position up to cable conductor (2), here at least one of cable conductor (2) and leg (190) electrically contacts.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP04405292A EP1594189A1 (en) | 2004-05-07 | 2004-05-07 | Clamping contacting element, insulation displacement connector, connector terminal block and method of manufacture thereof |
| EP04405292.6 | 2004-05-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1694306A true CN1694306A (en) | 2005-11-09 |
| CN1694308B CN1694308B (en) | 2010-04-28 |
Family
ID=34932100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200510067909XA Active CN1694308B (en) | 2004-05-07 | 2005-04-28 | Clamping contacting element, insulation displacement connector, connector terminal block and method of manufacture thereof |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP1594189A1 (en) |
| CN (1) | CN1694308B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104641513B (en) * | 2012-09-17 | 2017-07-04 | 罗森伯格高频技术有限及两合公司 | Contact element |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI735439B (en) * | 2015-04-14 | 2021-08-11 | 美商安芬諾股份有限公司 | Electrical connectors |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TR17786A (en) * | 1968-02-16 | 1976-09-01 | Northern Electric Co | INSULATION STRIPPING LINING |
| GB1313993A (en) * | 1971-01-12 | 1973-04-18 | Reliable Electric Co | Electric terminals |
| IT1028142B (en) * | 1974-01-18 | 1979-01-30 | Amp Inc | ELECTRICAL TERMINALS AND RELATED MANUFACTURING METHODS |
| US4346955A (en) * | 1977-12-28 | 1982-08-31 | Souriau & Cie | Self-stripping terminal for an electrical connector |
| FR2457572A2 (en) * | 1979-05-23 | 1980-12-19 | Souriau & Cie | SELF-CLOSING TERMINAL WITH ELASTIC FORK, AND CONNECTOR PROVIDED WITH SUCH A TERMINAL |
| US4824395A (en) * | 1988-02-08 | 1989-04-25 | Ideal Industries, Inc. | Push-in wire connector |
| GB9220575D0 (en) * | 1992-09-30 | 1992-11-11 | Weidmuller Klippon Products Li | Electric connector |
| DE19732182C1 (en) * | 1997-07-25 | 1999-03-25 | Quante Ag | Insulation displacement contact as well as terminal block or module and terminal block with an insulation displacement contact |
-
2004
- 2004-05-07 EP EP04405292A patent/EP1594189A1/en not_active Withdrawn
-
2005
- 2005-04-28 CN CN200510067909XA patent/CN1694308B/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104641513B (en) * | 2012-09-17 | 2017-07-04 | 罗森伯格高频技术有限及两合公司 | Contact element |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1594189A1 (en) | 2005-11-09 |
| CN1694308B (en) | 2010-04-28 |
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Effective date of registration: 20171023 Address after: Baden, Switzerland Patentee after: ABB TECHNOLOGY LTD. Address before: Zurich Patentee before: ABB Research Ltd |