EP2208256A1 - Fixing device and switchgear or detection appliance comprising a fixing device - Google Patents
Fixing device and switchgear or detection appliance comprising a fixing deviceInfo
- Publication number
- EP2208256A1 EP2208256A1 EP07846560A EP07846560A EP2208256A1 EP 2208256 A1 EP2208256 A1 EP 2208256A1 EP 07846560 A EP07846560 A EP 07846560A EP 07846560 A EP07846560 A EP 07846560A EP 2208256 A1 EP2208256 A1 EP 2208256A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- electrical conductor
- fastening
- insertion channel
- fastening device
- opening
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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
- H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
- H01R9/22—Bases, e.g. strip, block, panel
- H01R9/24—Terminal blocks
- H01R9/2416—Means for guiding or retaining wires or cables connected to terminal blocks
-
- 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
- H01R4/28—Clamped connections, spring connections
- H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
- H01R4/34—Conductive members located under head of screw
Definitions
- the present invention relates to a fastening device for fastening at least one electrical conductor to at least one fixed electrical contact, comprising at least one fastening element and at least one opening for introducing the at least one electrical conductor into the fastening device. Furthermore, the invention relates to a switching device or a detection device, with at least one fastening device for fastening at least one electrical conductor to at least one fixed electrical contact of the switching device or detection device, comprising at least one fastening element and at least one opening for introducing the at least one electrical conductor into the fastening device.
- electrical conductors are connected to switching devices or detection devices, such as position switches.
- ASI actuator sensor interface
- the electrical conductors are usually fastened by means of screws, cage clamps, tension clamps or insulation displacement clamps.
- FIGs. 1 to 3 three known from the prior art screw connections are shown.
- an electrical conductor 2 is perpendicular to the screw, that is, the fastening screw 4, introduced into a fastening device 1. After screwing in the fastening screw 4, the electrical conductor 2 is firmly seated in the fastening device 1. The electrically conductive end of the electrical conductor 2 makes contact with the fixed electrical contact 3 of the fastening device 1.
- a mounting plate 13 is provided for additional support for the attachment of the end of the electrical conductor 2. 2 shows a similar attachment of the end of an electrical conductor 2.
- the insertion opening 5 is laterally in the housing of the fastening device 1.
- the insertion 5 in Fig. 2 is arranged in contrast to the insertion opening 5 in Fig. 1 obliquely in the housing , By tightening the fastening screw 4, the end of the electrical conductor 2 is pressed by the mounting plate 13 to the fixed electrical contact 3 and fixed there.
- FIG 3 shows a further fastening device 1 of an electrical conductor 2 to a fixed electrical contact 3 of the fastening device 1.
- the insertion opening 5 for the electrical conductor 2 is on the same side as the opening 8 for carrying out the fastening screw 4 or for carrying out a Tool for actuating the fastening screw 4 is provided.
- the end of the electrical conductor 2 is bent during attachment.
- Contact 3 is arranged for better attachment of the end of the electrical conductor 2 obliquely in the fastening device 1.
- the electrical conductor according to the prior art can also be secured by so-called cage-clamp connections or other clamping connections, thus creating an electrical connection to a fixed electrical contact within the fastening device.
- PCB terminal blocks tension clamps and plugs with spring-cage double connections are known.
- the object of the invention is to provide a fastening device and a switching device or a detection device, which do not have the aforementioned disadvantages of the prior art.
- the insertion of the electrical conductor into the fastening device is to be simplified and the assembly effort is reduced.
- the object is achieved by a fastening device for fastening at least one electrical conductor to at least one fixed electrical contact, comprising at least one fastening element and at least one opening for introducing the at least one electrical conductor into the fastening device, wherein between the at least one fastening element and the at least one opening at least one insertion channel for guiding the at least one electrical conductor to the at least one fastening element is provided, which is at least partially bent, dissolved.
- Core of the invention is at least partially curved trained insertion channel.
- an electrical conductor or the end of an electrical conductor can be guided precisely to the fastening element.
- the end of the electrical conductor can not bend, but is also bent according to the bent portion of the insertion channel.
- the electrical conductor adjusts to the specially trained insertion channel during insertion.
- the diameter of the insertion channel is advantageously only slightly larger than the diameter of the electrical conductor or of the end of the electrical conductor.
- Fastening element such as a fastening screw, or a tool for actuating the fastener is introduced.
- the insertion channel may have an area that is bent. It is also conceivable that the entire insertion channel is formed bent.
- the insertion channel forms a hose-like guide for the electrical conductor.
- a fastening device for fastening an electrical conductor to a fixed electrical contact, comprising a fastening element and an opening for insertion of the electrical conductor in the fastening device, wherein between the fastening element and the opening an insertion channel for guiding the electrical conductor to the mounting is provided, which is at least partially bent, spoken.
- the fastening device can have a plurality of fastening elements and a plurality of openings for introducing a plurality of electrical conductors into the fastening device. Between one of the fastening elements and a corresponding opening, an insertion channel for guiding one of the electrical conductors to a fastening element is then provided in each case, which is designed to be bent at least in regions.
- the insertion channel has a frustoconical or funnel-shaped first region, which tapers from the opening in the direction of the interior of the fastening device.
- the frusto-conical shaped first area facilitates insertion of the electrical conductor into the insertion channel. Due to the frustoconical or funnel-shaped first region of the insertion channel, the end of the electrical conductor is guided in a targeted manner to the arcuate region of the insertion channel. As a result, a complicated threading of the end of the electrical conductor is avoided in the fastening device.
- the broad side of the frusto-conical region is located directly on the at least one opening through which the electrical conductor is inserted.
- the truncated cone-shaped region can form approximately one-third or approximately half of the insertion channel.
- the bent portion of the insertion channel begins directly at the frustoconical portion of the insertion channel.
- a direct transition between these two areas advantageously takes place.
- the first region is tapered towards the interior of the fastening device.
- the construction volume of the fastening device can be reduced, compared to a fastening device, wherein the at least one opening for the passage of the electrical conductor to another side than the second opening for passage of the fastener, such as a fastening screw, or the tool is located.
- a fastening device in which the fastening element is a fastening screw or a clamping element is particularly preferred.
- the fastening element may be formed, for example, as a tension clamp.
- the attachment of the electrical conductor or the end of the electrical conductor by a fastening screw provides a simple and inexpensive attachment.
- the electrical conductor is guided after insertion through the insertion channel to the fastening screw. That is, the end of the electrical conductor is guided between the head of the fastening screw and the fixed electrical contact, so that the head of the fastening screw firmly fixes the end of the electrical conductor to the fixed electrical contact after tightening the fastening screw.
- a fastening plate is inserted on the shank of the fastening screw, which fixes the electrical conductor to the fixed contact after tightening the fastening screw.
- the fastening element can also be designed as a cage-clamp connection or as another clamping connection. What is decisive is how the end of the electrical conductor is guided to the fastening element by means of the at least partially bent region of the insertion channel. The bent portion of the insertion channel allows exact positioning of the end of the electrical conductor.
- a fastening device in which the insertion channel to the channel center has protruding fixing elements, by which the electrical conductor or Ummante- ment of the electrical conductor in the insertion channel fixed is.
- the electrical conductor is sheathed to the end of the electrical conductor by a plastic sheath.
- the non-armored end of the electrical conductor is guided through the insertion opening, the frustoconical first portion of the insertion channel and the curved wider portion of the insertion channel to the fastener.
- the sheathed region of the electrical conductor is advantageously inserted into the further region of the insertion channel adjacent to the end of the frustoconically shaped first region or up to the beginning of the further region of the insertion channel adjacent to the truncated cone-shaped first region.
- the fixing elements of the insertion channel protruding toward the channel center are preferably provided in the region of the transition from the frustoconical first region and the further bent region of the introduction channel.
- the fixing elements can be designed such that they support the insertion of the electrical conductor or not hinder that prevent withdrawal or slipping out of the electrical conductor, however, or at least complicate.
- the fixing elements may be formed, for example, as barbs.
- the fixing elements are tapered projections, which project in the direction of the fastener inclined in the insertion channel.
- the fixing elements may also be formed by an annular projection.
- the fixing elements can also protrude perpendicular to the central axis of the insertion channel from the inner circumferential surface of the insertion channel.
- a fastening device in which the insertion channel is formed at least partially elastically and / or plastically deformable. By applying pressure to the insertion channel this can be deformed.
- the deformation can be permanent.
- a force can be exerted on a housing side of the fastening device, on which the insertion channel is located, by means of which the insertion channel can be elastically or plastically deformed at least partially.
- the fixing elements for example in the form of pointed, needle-like projections, in the electrical conductor, in particular in the sheath of the electrical conductor, penetrate to fix this in the insertion channel. This type of fixation of the electrical conductor to the fastening device is particularly simple and quick to carry out.
- this can be done by a single hand of a mechanic. That is, after the insertion of the electrical conductor through the insertion channel to the fastening element, the electrical conductor is fixed in the insertion channel, so that it can not slip out. Then, the fitter can use the same hand, for example, to tighten the fastening screw to then make the electrical contact between the end of the electrical conductor and the fixed electrical contact.
- the assembly of the electrical conductor in the fastening device can be done quickly and easily by such a fastening device. In particular, a one-hand assembly can be performed, which is necessary due to the often lack of space and the sometimes difficult to access position of the fastening device.
- the fixing elements are therefore preferably provided on the elastically and / or plastically deformable region of the insertion channel.
- the curved region of the insertion channel can be designed differently. In particular, the degree of bending can vary.
- the bent portion serves to deform when inserting the electrical conductor into the insertion channel, the end of the electrical conductor to guide this optimally to the fastener. As a result, a defined position of the electrical conductor within the fastening device is achieved.
- the bent portion of the insertion channel allows the opening for insertion of the electrical conductor to be inclined to the opening of the insertion channel facing the fixing member.
- a preferred embodiment of the fastening device provides that the insertion channel has a bent by 75-95 ° region.
- a bent by 90 ° region of the insertion channel is particularly preferred. This allows the at least one opening for insertion of the electrical conductor by 90 ° inclined to the opening of the insertion channel, which faces the fastening element may be formed. This allows the volume of the fixture to be minimized since the electrical conductor does not have to be inserted into the interior of the fixture from a side other than the fastener.
- the curved region of the insertion channel of the fastening device preferably has a curve which is bent by 90 ° and which starts from the tapered end of the frustoconically shaped first region.
- the end of the electrical conductor is guided by the frusto-conical first portion directly after introduction through the subsequent curved portion to the fastener.
- the course of the electrical conductor is deflected by 90 °.
- the end of the electrical conductor is perpendicular to the central axis of the screw-fastening screw. In this way, the electrical conductor can be optimally secured by the fastening screw to the fixed electrical contact of the fastening device.
- the fixing elements of the fastening device preferably sit at the beginning of the bent region of the insertion channel, wherein the beginning of the bent region faces the tapering end of the frustoconical first region of the insertion channel.
- the fixing elements can be arranged on a rib-shaped projection on the inner circumferential surface of the insertion channel. Due to the position of the fixing elements, the inserted electrical conductor can be secured against slipping out directly at the beginning of the bent region. In this case, the fixing elements preferably engage in the sheathed region of the electrical conductor. The free end of the electrical conductor runs along the bent portion of the insertion channel to the fastening element.
- the object is further by a switching device or by a detection device, with a fastening device for attaching at least one electrical conductor to at least one fixed electrical contact of the switching device or the detection device, comprising at least one fastening element and at least one opening to Introduction of at least one electrical conductor in the fastening device, wherein the fastening device is formed according to the first aspect of the invention, solved.
- the fastening device can be arranged in a variety of switching devices or detection devices.
- a switching device may be, for example, a circuit breaker, a semiconductor switching device, a relay, a contactor, a motor protection relay or switch, a circuit breaker or a circuit breaker.
- the detection device can be, for example, an inductive or capacitive proximity switch, an optoelectronic sensor, an ultrasonic sensor or a pressure sensor.
- the detection device is a position switch.
- the position switches can also have AS-Interface.
- Switchgear or detection devices with such a fastening device described above can be connected very easily and quickly to an electrical conductor or an electrical conductor can be very easily and quickly connected to a switching device or a detection device with such a fastening device described above.
- the electrical conductor can be fixed with one hand on the switching device or the detection device due to the fixing of the insertion of the fastening device and an electrically conductive connection to the fixed electrical contact of the fastening device can be made.
- the electrical conductor can additionally be held by a cover element on the switching device or the detection device.
- Figure 1 is a schematic side view of a fastening device according to the prior art
- FIG. 2 shows a second schematic side view of a fastening device according to the prior art
- Figure 3 is a third schematic side view of a fastening device according to the prior art
- Figure 4 is a schematic side view of a fastening device according to the invention.
- Figure 5 is a schematic plan view of the fastening device of FIG. 4;
- Figure 6 is another side view of a fastening device according to the invention.
- FIG. 7 is an enlarged view of the region of the insertion channel with fixing elements.
- FIGs. 1-3 show fastening devices according to the prior art. These figures have been described in the introduction to the description.
- FIG. 4 shows a schematic side view of an embodiment of the fastening device 1.
- an insertion channel 6 for guiding the electrical conductor 2 to the fastening element 4 is arranged.
- the insertion channel 6 has a first frustoconical region 7.
- This frustoconical shaped first region 7 runs from the opening 5 in Direction of the interior of the fastening device 1 pointed.
- the frustoconical shaped first region 7 facilitates the insertion of the electrical conductor 2 in the insertion channel 6.
- the end of the electrical conductor 2 is guided to the arcuate portion 12 of the insertion channel 6. A complicated threading of the end of the electrical conductor 2 in the fastening device 1 is thereby avoided.
- the broad side of the truncated cone-shaped region 7 lies directly on the
- the bent region 12 of the insertion channel 6 directly follows the frusto-conical region 7 of the insertion channel 6. In this embodiment of the fastening device 1, there is a direct transition between these two regions.
- an insertion channel 6 formed in this way, an electrical conductor 2 or the end of an electrical conductor 2 can be guided precisely to the fastening element 4 in order to be clamped by the latter to the fixed electrical contact 3 of the fastening device 1.
- the end of the electrical conductor can not bend incorrectly, but is bowed in accordance with the bent region 12 of the insertion channel 6.
- the electrical conductor 2 adapts to the specially designed insertion channel 6 during insertion.
- the diameter of the insertion channel 6 is advantageously only slightly larger than the diameter of the electrical conductor 2 and the end of the electrical conductor 2.
- the insertion channel 6 forms a tubular guide for the electrical conductor. 2
- the opening 5, through which the electrical conductor is inserted into the fastening device, is arranged on the same side of the housing of the fastening device 1 as the second opening 8, through which the fastening element 4, here a fastening screw, can be inserted.
- the fastening element 4 here a fastening screw
- the fastening device 1 for fastening an electrical conductor 2 to a fixed electrical contact 3 two or more fastening elements 4 and corresponding openings 5 for the introduction of a plurality of electrical conductors 2 in the fastening device 1, wherein between the fastening elements 4 and the openings 5 each have an insertion channel 6 for guiding one of the electrical conductors 2 to the respective fastening elements 4 are provided, which is at least partially bent.
- the end of the electrical conductor 2 is deformed by the insertion channel 6 such that it extends perpendicular to the central axis of the shank of the fastening screw 4.
- the fastening screw 4 or the fastening washer 13 plugged onto the fastening screw 4 can fix the end of the electrical conductor 2 optimally to the fixed electrical contact 3 of the fastening device 1.
- the curved portion 12 of the insertion channel 6, here the course of the insertion channel 6 is bent by 90 °, allows for a compact design of the fastening device 1 and on the other hand, the optimal guidance of the end of the electrical conductor 2 to the fastener. 4
- FIG. 5 shows a plan view of the fastening device 1 according to FIG. 4.
- the opening 5 for the passage of the electrical conductor 2 is axially parallel to the second opening 8, which serves for the introduction of the fastening element 4 or a tool for actuating the fastening element 4, respectively.
- For openings 5, 8 are thus accessible from one side, so that the overall volume of the fastening device 1 can be kept low when the electrical conductor 2 is attached to the fastening device 1.
- Fig. 6 the same fastening device 1, as shown in FIG. 4. The only difference is that the fastening device 1 is covered by a cover element 11 of a switching device or a detection device, so that the electrical conductor 2 or the sheathed region 10 of the electrical conductor 2 outside the fastening device 1 is bent off.
- Fig. 7 the area marked A in Fig. 6 is shown enlarged.
- the electrical conductor 2 has been inserted through the frusto-conical first portion 7 of the insertion channel 6 in this.
- the unjacketed end of the electrical conductor 2 follows the bent portion 12 of the insertion channel 6.
- the bent portion 12 of the insertion channel 6 is seated directly on the tapered end of the frusto-conical first portion 7.
- fixing elements 9 hen are provided in the transition region of the frusto-conical first portion 7 and the Curved portion 12 of the insertion channel 6 .
- the fixing elements 9 barb-shaped direction of the central axis of the insertion channel 6 protrude.
- the fixing elements 9 are arranged such that they only prevent slipping out of the electrical conductor 2 from the insertion channel 6.
- the insertion channel 6 is formed at least partially elastically and / or plastically deformable bar.
- the fixing elements 9 protruding toward the center axis of the insertion channel 6, which are preferably formed in the form of pointed needle-shaped projections can be pressed into the electrical conductor so that it is fixed in the insertion channel 6.
- the fixing elements 9 are in particular pressed into the sheathing 10 of the electrical conductor 2.
- the fixation of the electrical conductor 2 in the insertion channel 6 remains permanent. Is the Guide channel formed at least partially elastic, the fixation after a while can solve by itself again. However, the fixation continues until the end of the electrical conductor 2 is fixed by the fastening element 4 to the fixed electrical contact 3 of the fastening device 1. Since the attachment of the end of the electrical conductor 2 is usually carried out immediately after the passage of the electrical conductor 2 through the insertion channel 6, a short-term fixation of the electrical conductor 2 by means of the fixing elements 9 is sufficient.
- a preferred embodiment of the fastening device 1 provides that the insertion channel 6 has an area bent by 75-95 °.
- a region 12 of the insertion channel 6 bent by 90 ° is particularly preferred, as shown in FIGS. 4 and 7.
- the opening 5 for insertion of the electrical conductor inclined by 90 ° to the opening 14 of the insertion channel 6, which faces the fastening element 4 may be formed. This allows the volume of the fixture 1 to be kept low because the electrical conductor 2 on the same side as the fixture 4 or tool for actuating the fixture 4 must be inserted into the interior of the fixture 1.
Landscapes
- Clamps And Clips (AREA)
- Breakers (AREA)
- Switch Cases, Indication, And Locking (AREA)
- Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
- Transformers For Measuring Instruments (AREA)
- Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT10007575T ATE520171T1 (en) | 2007-11-12 | 2007-11-12 | FASTENING DEVICE AND SWITCHING DEVICE OR DETECTION DEVICE WITH A FASTENING DEVICE |
EP10007575A EP2264835B1 (en) | 2007-11-12 | 2007-11-12 | Fixing device and switching device or recording device with a fixing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/EP2007/009772 WO2009062523A1 (en) | 2007-11-12 | 2007-11-12 | Fixing device and switchgear or detection appliance comprising a fixing device |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10007575.3 Division-Into | 2010-07-21 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2208256A1 true EP2208256A1 (en) | 2010-07-21 |
EP2208256B1 EP2208256B1 (en) | 2011-05-18 |
Family
ID=39590468
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07846560A Not-in-force EP2208256B1 (en) | 2007-11-12 | 2007-11-12 | Fixing device and switchgear or detection appliance comprising a fixing device |
EP10007575A Not-in-force EP2264835B1 (en) | 2007-11-12 | 2007-11-12 | Fixing device and switching device or recording device with a fixing device |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10007575A Not-in-force EP2264835B1 (en) | 2007-11-12 | 2007-11-12 | Fixing device and switching device or recording device with a fixing device |
Country Status (4)
Country | Link |
---|---|
EP (2) | EP2208256B1 (en) |
CN (1) | CN101855785B (en) |
AT (2) | ATE520171T1 (en) |
WO (1) | WO2009062523A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4117119A1 (en) * | 2021-07-08 | 2023-01-11 | Sacopa, S.A.U. | Electrical connector |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2786611B1 (en) * | 1998-11-26 | 2001-02-09 | Jean Jacques Lefebvre | CONNECTION TERMINAL FOR THE LOOP SUPPLY OF ELECTRICAL APPLIANCES |
DK1039606T3 (en) * | 1999-03-23 | 2004-02-23 | Andreas Moehlenhoff | Device for establishing an electrically conductive connection between at least two electrical devices |
DE10039961C1 (en) * | 2000-08-16 | 2002-02-28 | Siemens Ag | Rail-mounted electrical device has insulation displacement device with insulation displacer and relatively displaced retaining elements for securing associated current conductors |
EP1679766A1 (en) * | 2005-01-10 | 2006-07-12 | 3M Innovative Properties Company | Wire guide plate and assembly as well as a telecommunications module comprising at least one wire guide plate |
-
2007
- 2007-11-12 EP EP07846560A patent/EP2208256B1/en not_active Not-in-force
- 2007-11-12 CN CN200780101497.4A patent/CN101855785B/en not_active Expired - Fee Related
- 2007-11-12 AT AT10007575T patent/ATE520171T1/en active
- 2007-11-12 WO PCT/EP2007/009772 patent/WO2009062523A1/en active Application Filing
- 2007-11-12 AT AT07846560T patent/ATE510327T1/en active
- 2007-11-12 EP EP10007575A patent/EP2264835B1/en not_active Not-in-force
Non-Patent Citations (1)
Title |
---|
See references of WO2009062523A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2009062523A1 (en) | 2009-05-22 |
ATE510327T1 (en) | 2011-06-15 |
CN101855785B (en) | 2013-04-03 |
EP2264835A1 (en) | 2010-12-22 |
ATE520171T1 (en) | 2011-08-15 |
EP2264835B1 (en) | 2011-08-10 |
EP2208256B1 (en) | 2011-05-18 |
CN101855785A (en) | 2010-10-06 |
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