EP4049346A1 - Kabelprüfvorrichtung - Google Patents
KabelprüfvorrichtungInfo
- Publication number
- EP4049346A1 EP4049346A1 EP20807500.2A EP20807500A EP4049346A1 EP 4049346 A1 EP4049346 A1 EP 4049346A1 EP 20807500 A EP20807500 A EP 20807500A EP 4049346 A1 EP4049346 A1 EP 4049346A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cable
- receptacle
- contact element
- contact
- contacting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 85
- 238000005259 measurement Methods 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 10
- 238000012545 processing Methods 0.000 claims description 7
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 238000013461 design Methods 0.000 description 7
- 238000009413 insulation Methods 0.000 description 5
- 230000005405 multipole Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012113 quantitative test Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
- H01R13/62933—Comprising exclusively pivoting lever
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
- G01R1/0416—Connectors, terminals
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
- G01R27/08—Measuring resistance by measuring both voltage and current
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/58—Testing of lines, cables or conductors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
- H01R11/18—End pieces terminating in a probe
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
- H01R13/193—Means for increasing contact pressure at the end of engagement of coupling part, e.g. zero insertion force or no friction
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/717—Structural association with built-in electrical component with built-in light source
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R2201/00—Connectors or connections adapted for particular applications
- H01R2201/20—Connectors or connections adapted for particular applications for testing or measuring purposes
Definitions
- the invention relates to a cable contacting device according to the preamble of claim 1, a cable testing device according to the preamble of claim 13 and a method for testing a cable according to the preamble of claim 33.
- connection cable both sides have a plug / socket with a defined cable length in between
- built-in plugs / built-in sockets these have the plug / socket only on one side
- the other end is not connected by a plug / Socket fitted. This is called an open end.
- This open end can be cut off or stripped off or provided with a crimp contact.
- the electrical testing of connection lines has been tried and tested using adapters with appropriate spring pins / contacts and is state of the art.
- DE3308178C1 deals with the testing of electronic parts, the electronic elements of which are provided with cable ends, with either flat plugs, wire end sleeves being attached to the cable ends, or the cable ends being bare or soldered.
- the cable end (see Fig. 1) is inserted from above and clamped to the side.
- US20060172586A1 discloses a test device with a receptacle for a cable section. A kind of needle is used to perforate the insulation in order to establish electrical contact with the stranded wire.
- DE 102014117942 A1 discloses a contact clamp for an electrical four-wire measurement on a measurement object.
- the contact pliers have two metallic pliers legs which can be pivoted relative to one another and are galvanically separated from one another.
- CN 208752141 U discloses a conductor resistance test system comprising a four-terminal resistance test arrangement, a thermostat, a lift (according to the scissors principle) and a DC resistance tester.
- the four-terminal resistance test arrangement is formed by a guide rail and a pair of test clips which are movably mounted on the guide rail. The test clips are connected to the DC resistance tester.
- JP Fl 07229940 A discloses a measuring arrangement for measuring the electrical resistance by means of four-wire measurement. Four conductive pins that are electrically isolated from each other are used.
- DE 202014103886 U1 discloses a contact device consisting of an inner electrode and an outer electrode arranged coaxially to this, the inner electrode being designed as a spring contact pin.
- a contact device can be used for a Kelvin or four-wire measurement method.
- the aim of the present invention is therefore to overcome the disadvantages resulting from the prior art and to provide a cable contacting device or cable testing device with which a reliable, reproducible and process-safe contacting of open cable ends (e.g. smooth, stripped or crimped) is made possible .
- the cable contacting device or cable testing device should be easy to handle or operate. The production of the electrical contact to the relevant cable section should be possible simply and without sources of error.
- the cylindrical receptacle enables cables of different diameters to be inserted, which are guided on all sides (through the cylindrical receptacle). Due to the cylindrical design and the resulting usability for different cable diameters, it is not always possible for an operator or a cable tester inside the receptacle (the cylinder) to determine with absolute certainty whether the inserted cable is actually making contact with the contact elements (or at least touched). According to the invention, this is now accomplished by means of the lighting device, so that the cylindrical design of the receptacle and the lighting device complement one another synergistically.
- the goal is also achieved - additionally or alternatively (also independently of the above-mentioned features of a cable contacting device) with a cable testing device mentioned at the beginning, in that the at least one contacting device connects a second contact element arranged in the region of the receptacle for making a second electrical contact having a cable section located in the receptacle.
- the measure according to the invention not only results in reliable and reproducible contacting, but real four-wire measurement (also called 4-wire measurement or Kelvin contact) can be carried out.
- real four-wire measurement also called 4-wire measurement or Kelvin contact
- cables with a small strand diameter ⁇ 1.5mm 2
- cables with a small strand diameter ⁇ 1.5mm 2
- the receptacle is preferably designed in such a way that the cable section forming the cable end can be introduced into the receptacle along its length via an opening.
- first contact element and the second contact element - in the absence of a cable section in the receptacle or in the non-contacting position - are galvanically separated from one another. This enables the four-wire measuring arrangement.
- the test that can be carried out with the cable test device can be a qualitative test (for example a test to determine whether the cable strand is continuous between the ends of the cable, ie has no interruption) and / or a quantitative test (eg a measurement of the electrical resistance of the cable strand).
- the term “cable” also includes single-pole and multi-pole cables, cables in the form of cable harnesses, flat cables, cables with branches and cables of any shape and design.
- the contact elements are arranged at least with their contact surface or point in the receptacle and / or can be moved into it. It is preferred if at least one contact element, preferably both contact elements, is / are or acts / act as a clamping element and the first cable section in the contacting position mechanically jams.
- the first contacting device with the receptacle, the first and second contact element is used to contact the cable on a first section, in particular on an open (ie plugless or socketless) first end of the cable.
- the test device can have a second contacting device which is used to contact a second section, in particular the second end, of the cable. It is preferred that the second contacting device also comprises two contact elements in order to enable a four-wire measuring arrangement (or Kelvin contacting) in this way.
- the second contacting device can be the same, similar or different to the first contacting device.
- a preferred embodiment is characterized in that the cable testing device comprises a four-wire measuring arrangement with a circuit for applying current or voltage to a cable and a measuring circuit, the first contact element being part of the Application circle and the second contact element is part of the measuring circuit.
- a four-wire measurement enables a particularly precise measurement of the electrical cable properties, in particular the resistance, since this is largely independent of the internal resistances of the measuring circuits and the contact resistances. Such contacting is made possible in a simple manner with the two contact elements in the receptacle.
- a preferred embodiment is characterized in that the first contact element is connected to a current source or a voltage source, preferably via a switching device, and / or that the second contact element is connected to a voltmeter or an ammeter, preferably via a switching device.
- a preferred embodiment is characterized in that the cable testing device has at least one second contacting device for temporary electrical contacting of a second cable section of a cable, in particular a second cable end (preferably equipped with a plug or socket). This also enables reliable contact to be made with the second cable end.
- a preferred embodiment is characterized in that the at least one second contacting device comprises a first contact element for making a first electrical contact to the second cable section and a second contact element for making a second electrical contact to the second cable section. This in turn enables the four-wire measurement on the cable to be tested.
- the cable testing device comprises a four-wire measuring arrangement with a circuit for applying current or voltage to a cable and a measuring circuit, the first contact element (of the second contacting device) being part of the applying circuit and the second contact element (of the second contacting device) Is part of the measuring circuit.
- a preferred embodiment is characterized in that the first contact element and / or the second contact element is / are electrically connected to a lighting device, in particular a light-emitting diode, for displaying the contacting state. This enables the contact status to be displayed immediately during contacting.
- a preferred embodiment is characterized in that the receptacle forms a guide for the cable section to be received, the guide having a longitudinal axis.
- the cable (end) is inserted into the receptacle or guide through an opening.
- the diameter of the guide is preferably approximately the same as the diameter of the cable to be tested. This ensures that the contact elements make contact with the cable section at the correct point.
- the guide (or the receptacle) preferably forms a space, which is enclosed on all sides transversely to the longitudinal axis, for the first cable section to be received. As a result, the relevant cable section is received well and safely and enclosed on all sides (by a wall or walls of the guide).
- the invention offers high flexibility, since different cable cross-sections within one with the same contacting unit Area (for example from 0.09 mm 2 to 1, 5 mm 2 ) can be safely contacted.
- a preferred embodiment is characterized in that the receptacle, at least a section of the first contact element and at least a section of the second contact element are accommodated in a common block.
- the receptacle for the cable section and / or the accommodation of the first contact element and / or the accommodation of the second contact element can be designed as a bore within the block.
- a preferred embodiment is characterized in that at least one of the contact elements, preferably both contact elements, is / are movable relative to the receptacle between a disconnected position and a contacting position, preferably in a direction transverse, preferably perpendicular, to the longitudinal axis of the receptacle, with preferably at least one the contact elements, preferably both contact elements, is / are preloaded by a spring in at least one position, preferably in the contacting position. In the separated position, the contact element (s) is / are withdrawn or even moved out of the receptacle. This enables the cable to be inserted unhindered.
- the contact element (s) is / are moved in the direction of the interior of the receptacle and contact (or clamp) the cable section.
- a preferred embodiment is characterized in that the first contact element and the second contact element interact with a common actuating element and can be moved together from a disconnected position into a contacting position, the actuating element preferably being pivotable stored lever is. The actuation can be done manually or automatically by a drive.
- a preferred embodiment is characterized in that the first contact element and the second contact element are connected to the actuating element in such a way that when the actuating element is actuated, one contact element leads the other contact element. This is particularly advantageous when the contact elements are intended to perforate the cable insulation in order to contact the stranded wire. The force required for this is reduced or distributed by this measure.
- a preferred embodiment is characterized in that the first contact element and / or the second contact element interact with an actuating element, the actuating element being part of a kinematic system that has a dead point between the disconnected position and the contacting position. This ensures that both the contacting position and the disconnected position are stable positions that cannot be left unintentionally (e.g. due to shocks or vibrations).
- a preferred embodiment is characterized in that the receptacle has a longitudinal axis and that at least one of the contact elements, preferably both contact elements, is / are designed in the form of a contact pin which extends transversely, preferably perpendicularly, to the longitudinal axis of the receptacle, preferably the end of the contact pin facing the interior of the receptacle is designed to taper, preferably to a point.
- Contact pins designed in this way are particularly suitable as clamping elements which press against the cable or its stranded wire and thus also fix the cable section mechanically. Tapering or pointed contours allow the cable insulation to be perforated and thus also the contacting of non-stripped cable sections. This can also be referred to as two-needle contact.
- the contact pins made of conductive material, in particular metal (copper, gold, alloy, etc.), are almost wear-free.
- the contact pins can also be spring-loaded.
- a preferred embodiment is characterized in that the first contact element and the second contact element are spaced apart from one another in the direction of the longitudinal axis of the receptacle, preferably at most 20 mm, preferably at most 15 mm.
- the resulting spacing of the first and second contact points is particularly advantageous for the four-wire measurement already mentioned.
- a preferred embodiment is characterized in that the first contact element and the second contact element protrude into the receptacle from the same side or can be moved into the receptacle from the same side. The latter can be done in this case by a common actuating element.
- a preferred embodiment is characterized in that the first contact element is arranged on one side of the receptacle and the second contact element is arranged on the side of the receptacle opposite the first contact element.
- a preferred embodiment is characterized in that the first contact element can be moved into the receptacle from one side and the second contact element is arranged or can be moved into the receptacle on the side of the receptacle opposite the first contact element. If one or both contact elements are movable, a particularly good contact can be made at both contact points by exerting pressure (for example by means of a spring).
- a preferred embodiment is characterized in that the receptacle has a stop for restricting the insertion movement of the cable section, in particular the cable end. Here the cable can always be contacted at the same point, which further improves reproducibility
- a preferred embodiment is characterized in that the inside diameter of the receptacle is at most 5 mm, preferably at most 3 mm, and / or that the longitudinal extension of the receptacle is at most 20 mm, preferably at most 15 mm.
- the cable testing device comprises at least two, preferably at least five, contacting devices which are integrated in a common block and / or fastened on a common platform. This allows a space-saving and compact design as well as the simultaneous testing of several cables in a confined space.
- the invention also allows a very narrow design, e.g. in rows or a circular arrangement, and is also ideally suited for multi-pole lines.
- the invention also relates to a cable processing device for processing a cable, in particular for cutting, stripping, fitting and / or assembling a cable, the cable processing device having a cable contacting device according to the invention and / or a cable testing device according to the invention. That way, the too processed or processed cables are contacted or checked during or immediately after a processing process.
- the invention also relates to a method for testing a cable by means of a cable testing device according to the invention, the method preferably comprising the steps:
- the cable testing device preferably comprises a four-wire measuring arrangement with a circuit for applying current or voltage to the cable and a measuring circuit for measuring a current passed through the cable or on the cable applied voltage, the first contact element being part of the application circuit and the second contact element being part of the measuring circuit.
- the second contacting device does not necessarily have to be part of the cable testing device.
- the second contacting device could be part of a separate voltage or current source or part of a device, a system or a vehicle for which the cable is intended.
- the second cable section would already be built into the device and connected there to a "second contacting device" (socket, plug, soldered connection, etc.).
- a reference voltage that is then detected against earth, for example.
- the second contacting device is also part of the cable testing device and / or is integrated in it .
- Fig. 1 an embodiment of a test device according to the invention
- FIG. 3 shows a test device in a perspective view
- FIG. 4 shows the lighting devices of a preferred test device
- FIG. 6 shows a four-wire measuring arrangement with an application circuit and measuring circuit 5.
- FIG. 1 shows a cable testing device 10 with a first contacting device 3 for temporarily making electrical contact with a first cable section 5 of a cable 20 (shown in dashed lines), in particular a first cable end.
- Contacting device 3 has an elongated - in the illustrated embodiment, cylindrical - receptacle 4 for receiving the cable section 5.
- a first contact element 1 for setting a first electrical contact to the cable section 5 located in the receptacle 4
- a second contact element 2 for setting a second electrical contact to the cable section 5 located in the receptacle 4.
- 6 shows that the cable testing device 10 comprises a four-wire measuring arrangement 6 with a circuit 7 for applying current or voltage to the cable 20 and a measuring circuit 8 (for measuring an electrical variable such as voltage, current, resistance, etc.).
- the first contact element 1 is part of the application circuit 7 and the second contact element 2 is part of the measuring circuit 8.
- the first contact element 1 can thus be connected to a current source 17 (or a voltage source 18, which is merely indicated as an alternative to the current source), preferably via a switching device 19.
- the second contact element 2 can also be connected to a voltmeter 21 (or an ammeter 22, which is only indicated as an alternative to the voltmeter 21), preferably via a switching device 23.
- the cable testing device 10 can also have at least a second
- Contacting device 24 for the temporary electrical contacting of a second cable section 25 of the cable 20, in particular a second cable end.
- the second contacting device 24 could also be provided as a separate part, for example in the form of an adapter part, which can be electrically connected to the test device.
- the second contacting device 24 can - similarly to the first contacting device 3 - comprise a first contact element 26 for establishing a first electrical contact with the second cable section 25 and a second contact element 27 for establishing a second electrical contact with the second cable section 25.
- the first contact element 26 (of the second contacting device 24) is part of the application circuit 7 and the second contact element 27 (of second contacting device 24) part of measuring circuit 8.
- the contact elements 1, 2 are each electrically connected to a lighting device 9, in particular in the form of a light-emitting diode, for displaying the contacting state.
- the receptacle 4 can form a guide for the cable section 5 to be received, the guide having a longitudinal axis.
- the guide (or receptacle) forms a space that is enclosed on all sides transversely to the longitudinal axis (of the guide) for the first cable section 5 to be accommodated.
- FIGS. 1 and 2 shows that at least one of the contact elements 1, 2 (see FIG. 2), preferably both contact elements 1, 2 (see FIG. 1), relative to the receptacle 4 between a disconnected position and a contacting position is / are movable.
- the direction of movement of the contact elements 1, 2 is transverse (in the illustrated embodiment, perpendicular) to the longitudinal axis of the receptacle 4.
- the contact elements 1, 2 are prestressed in at least one position, preferably in the contacting position, by a spring 11, 12 could be.
- the actuation takes place by means of an actuating element 13, here a pivotably mounted lever.
- an actuating element 13 here a pivotably mounted lever.
- first contact element 1 and the second contact element 2 are connected to the actuating element 13 in such a way that when the actuating element 13 is actuated (into the contacting position) one contact element 1 leads the other contact element 2.
- first contact element 1 and / or the second contact element 2 can interact with an actuating element 13, the actuating element 13 being part of a kinematic system that has a dead point between the disconnected position and the contacting position.
- the contact elements 1, 2 are each designed in the form of a contact pin which extends transversely, preferably perpendicularly, to the longitudinal axis of the receptacle 4. From Fig. 1 it can be clearly seen that the end of the contact pin facing the interior of the receptacle 4 is preferably designed to taper to a point (or needle-shaped).
- the first contact element 1 and the second contact element 2 are spaced apart from one another in the direction of the longitudinal axis of the receptacle 4 - preferably at most 20 mm, preferably at most 15 mm.
- the first contact element 1 and the second contact element 2 protrude from the same side into the receptacle 4 or can be moved into the receptacle 4 from the same side.
- the first contact element 1 is on one side of the receptacle 4 (here on the right of the Reception 4) and the second contact element 2 are arranged on the side of the receptacle 4 opposite the first contact element 1 (here on the left of the receptacle 4).
- the first contact element 1 can, for example, be movable into the receptacle 4 from one side (from the left), while the second contact element 2 can be moved to the first
- Contact element 1 opposite side of the receptacle 4 can be arranged stationary or can also be moved into the receptacle 4.
- the receptacle 4 can have a stop 14 for restricting the insertion movement of the cable section 5 or cable end.
- the inside diameter of the receptacle 4 is preferably at most 5 mm, preferably at most 3 mm.
- the inside diameter of the receptacle can also be matched to thinner cables. It is preferred if the play between the cable and the inner wall of the receptacle is very small so that the one to be contacted
- Cable section is positioned in a defined manner.
- the longitudinal extension of the receptacle 4 is preferably at most 20 mm, preferably at most 15 mm.
- the cable testing device 10 can comprise at least two, preferably at least five, contacting devices 3 which are integrated in a common block 15 (FIGS. 3 and 5) and / or are fastened on a common platform 16 (FIG. 5).
- the invention also relates to a method for testing a cable 20 by means of a cable testing device 10 according to the invention, preferably with the following steps:
- a second cable section 25 preferably the second cable end (preferably equipped with a plug or socket), is electrically contacted by means of a second contacting device 24 (see FIG. 6 and description above).
- the first contact element 1 is preferably part of the application circuit 7 of a four-wire measuring arrangement 6 and the second contact element 2 is part of the measuring circuit 8 of the four-wire measuring arrangement 6.
- a cable 20 for example with an inner strand of 0.09 mm 2 to 1.5 mm 2 , is inserted into the first contacting device 3 from above (up to the stop).
- the lever of the actuating device 13 By actuating the lever of the actuating device 13, the two contact pins 1, 2 are displaced (in the form of needles (in FIG. 1: to the left).
- the contact pin 1 leads the contact pin 2 in order to minimize the lever force.
- the contact pin 1 pierces the insulation of the inserted cable 20 up to the inner strand and thus makes contact with the cable section 5.
- the lighting device 9 (in the form of an LED) on the LED bar (see Fig. 4) is supplied with power via the vertical contact screw (without BZ) and lights up e.g. red.
- the contact pin 2 protrudes through the insulation up to the (copper) strand of the cable 20, thereby closing the circuit and the lighting device 9 can light up in a second color, e.g. green.
- the contact is thus perfect and the electrical test can begin, i.e. the cable can be supplied with a test current or a test voltage.
- the lever 5 is actuated in the other direction, whereby the contact pins 1, 2 move back and the cable 20 can be removed from the receptacle 4 again.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Leads Or Probes (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP19205436.9A EP3813203A1 (de) | 2019-10-25 | 2019-10-25 | Kabelprüfvorrichtung |
PCT/IB2020/059882 WO2021079277A1 (de) | 2019-10-25 | 2020-10-21 | Kabelprüfvorrichtung |
Publications (1)
Publication Number | Publication Date |
---|---|
EP4049346A1 true EP4049346A1 (de) | 2022-08-31 |
Family
ID=68382180
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19205436.9A Withdrawn EP3813203A1 (de) | 2019-10-25 | 2019-10-25 | Kabelprüfvorrichtung |
EP20807500.2A Pending EP4049346A1 (de) | 2019-10-25 | 2020-10-21 | Kabelprüfvorrichtung |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19205436.9A Withdrawn EP3813203A1 (de) | 2019-10-25 | 2019-10-25 | Kabelprüfvorrichtung |
Country Status (4)
Country | Link |
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EP (2) | EP3813203A1 (de) |
CN (1) | CN114616472A (de) |
MX (1) | MX2022004839A (de) |
WO (1) | WO2021079277A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN115616331B (zh) * | 2022-12-19 | 2023-12-01 | 深圳市高麦电子有限公司 | 一种精密四线式测试机 |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1144252A (en) * | 1980-04-10 | 1983-04-05 | Edward A. Bianchi | Coaxial tap connector |
DE3308178C1 (de) | 1983-03-08 | 1984-04-05 | RAWE Datentechnik GmbH, 8999 Weiler | Leitungsklemmvorrichtung |
GB2169153B (en) * | 1984-12-28 | 1988-08-03 | Sumitomo Wall Systems Ltd | Connector terminal examination device |
JPH07229940A (ja) * | 1994-02-18 | 1995-08-29 | Fuji Electric Co Ltd | 電気抵抗測定治具 |
JP2005062050A (ja) * | 2003-08-18 | 2005-03-10 | Nippon Densetsu Kogyo Co Ltd | 信号用多芯ケーブル試験器 |
US20060172586A1 (en) | 2005-01-28 | 2006-08-03 | Shane Rosenblatt | Electrical test lead connector |
WO2008117405A1 (ja) * | 2007-03-26 | 2008-10-02 | Fujitsu Limited | 接続装置及び方法、並びに、試験装置及び方法 |
US9372207B1 (en) * | 2013-09-10 | 2016-06-21 | EKM Metering, Inc. | Power sensing transducer |
DE202014103886U1 (de) * | 2014-08-21 | 2014-09-18 | Herbert Amrhein | Kontaktvorrichtung |
DE102014117942A1 (de) * | 2014-12-05 | 2016-06-09 | Inter-Consult Gmbh | Kontaktzange für eine elektrische Vierleiter-Messung |
US9252520B1 (en) * | 2014-12-16 | 2016-02-02 | Schneider Electric USA, Inc. | Stacked spring terminals |
ES2611994B1 (es) * | 2015-11-11 | 2018-02-15 | Vicente Rodilla Sala | Dispositivo medidor de magnitudes físicas sobre cables conductores eléctricos con aislamiento perimetral exterior |
US10243280B2 (en) * | 2016-10-05 | 2019-03-26 | Fluke Corporation | Electrical connector for unterminated cables |
CN208752141U (zh) * | 2018-09-03 | 2019-04-16 | 湖北鄂电萃宇电缆有限公司 | 在线导体电阻测试系统 |
CN110320409A (zh) * | 2019-06-26 | 2019-10-11 | 国网冀北电力有限公司唐山供电公司 | 一种大截面xlpe电缆导体交流电阻测量方法 |
-
2019
- 2019-10-25 EP EP19205436.9A patent/EP3813203A1/de not_active Withdrawn
-
2020
- 2020-10-21 MX MX2022004839A patent/MX2022004839A/es unknown
- 2020-10-21 CN CN202080075240.1A patent/CN114616472A/zh active Pending
- 2020-10-21 WO PCT/IB2020/059882 patent/WO2021079277A1/de unknown
- 2020-10-21 EP EP20807500.2A patent/EP4049346A1/de active Pending
Also Published As
Publication number | Publication date |
---|---|
CN114616472A (zh) | 2022-06-10 |
EP3813203A1 (de) | 2021-04-28 |
MX2022004839A (es) | 2022-05-18 |
WO2021079277A1 (de) | 2021-04-29 |
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