EP3405998B1 - Pince crocodile à barre omnibus dotée de la technologie à ressort de serrage et procédé de réalisation d'une pince crocodile à barre omnibus - Google Patents

Pince crocodile à barre omnibus dotée de la technologie à ressort de serrage et procédé de réalisation d'une pince crocodile à barre omnibus Download PDF

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Publication number
EP3405998B1
EP3405998B1 EP17702024.5A EP17702024A EP3405998B1 EP 3405998 B1 EP3405998 B1 EP 3405998B1 EP 17702024 A EP17702024 A EP 17702024A EP 3405998 B1 EP3405998 B1 EP 3405998B1
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EP
European Patent Office
Prior art keywords
busbar
clamping
clip
clamping member
housing part
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.)
Active
Application number
EP17702024.5A
Other languages
German (de)
English (en)
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EP3405998A1 (fr
Inventor
Dirk Niestrat
Ralf Holtmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hora Etec GmbH
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Hora Etec GmbH
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Publication date
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Publication of EP3405998A1 publication Critical patent/EP3405998A1/fr
Application granted granted Critical
Publication of EP3405998B1 publication Critical patent/EP3405998B1/fr
Active legal-status Critical Current
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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
    • H01R4/28—Clamped connections, spring connections
    • H01R4/38—Clamped connections, spring connections utilising a clamping member acted on by screw or nut
    • 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
    • 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
    • H01R4/305—Clamped connections, spring connections utilising a screw or nut clamping member having means for facilitating engagement of conductive member or for holding it in position
    • 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
    • H01R4/38—Clamped connections, spring connections utilising a clamping member acted on by screw or nut
    • H01R4/42—Clamping area to one side of screw only
    • 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
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • 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
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/48185—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar adapted for axial insertion of a wire end
    • H01R4/4819—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar adapted for axial insertion of a wire end the spring shape allowing insertion of the conductor end when the spring is unbiased
    • H01R4/4821—Single-blade spring
    • 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
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/484—Spring housing details
    • 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
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/4846—Busbar details
    • H01R4/485—Single busbar common to multiple springs
    • 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
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/484—Spring housing details
    • H01R4/4842—Spring housing details the spring housing being provided with a single opening for insertion of a spring-activating tool
    • 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
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/4846—Busbar details
    • H01R4/4852—Means for improving the contact with the conductor, e.g. uneven wire-receiving surface

Definitions

  • the invention relates to a busbar crocodile clip, as it is from DE 20 2011 000 622 U1 and the DE 10 2012 203 554 A is known, that is, a connection device for contacting a busbar, referred to below for short as a busbar, usually a copper bar or a bar made of an otherwise suitable electrically conductive material, in particular with a rectangular or square cross section.
  • the busbar crocodile clip creates an electrically conductive contact with the respective busbar.
  • the busbar crocodile clip enables the potential made available via the busbar to be tapped, for example in a switch cabinet or the like, and the potential that is supplied centrally can be routed to other locations in the switch cabinet, switch box, etc. via the busbar crocodile clip, for example to electrical ones located there Devices, e.g. fuse holders, automatic circuit breakers, motor protection switches, contactors, sockets and the like, to provide the respective potential.
  • One object of the innovation proposed here is to provide a further embodiment of a basically from the DE 20 2011 000 622 U1 or the DE 10 2012 203 554 A known busbar alligator clip.
  • a busbar crocodile clip with the features of claim 1.
  • the busbar alligator clamp and its clamp body comprise means for electrically conductive contacting of a busbar.
  • the busbar alligator clip is on the busbar by means of an extension in its function as a stop comprehensive clamping device fixable.
  • this includes means for electrically conductive contact between a conductor brought to the busbar crocodile clip and the clamping body using spring-clamp technology, for example at least one spring-loaded terminal.
  • the housing of the busbar crocodile clip for example a housing part, has means for ensuring a defined relative position of at least three components of the busbar crocodile clip. These components are at least the housing of the busbar crocodile clip, the clamping body and the means or means for electrically conductive contacting of a conductor, for example a spring-loaded terminal or several spring-loaded terminals.
  • the busbar crocodile clip is fixed to the respective busbar, for example, by means of a clamping screw screwed into the clamping body. Alternatively, this fixation can also be realized by means of a clamping device based on spring force.
  • Clamping body holding means act on the one hand in or on the housing and on the other hand in or on the clamping body as a means for ensuring the defined relative position explained above at least of the named components of the busbar crocodile clip.
  • recesses in the clamping body and lugs on the housing intended to engage in these recesses come into consideration as clamping body holding means.
  • the housing holds, for example, spring-loaded terminals, which are mentioned in the following for better readability, but without waiving further generality instead of means for electrically conductive contacting of a conductor brought up to the busbar crocodile clip, which, however, can still always be read, in a defined position .
  • the clamping body is also held in a defined position in relation to the housing by clamping body holding means in the form of recesses and lugs. Overall, this ensures that the spring-loaded terminals, the clamping body and the housing are located in a defined relative position to one another, which enables the function of the busbar crocodile clip.
  • a major advantage of the busbar crocodile clip according to the invention is its structure, which is optimized with regard to simple manufacture. This is also evident in a method for producing a busbar crocodile clip of the type described here and below.
  • spring-loaded terminals or other actuating means using spring-clamp technology are placed in the interior of the housing in recesses provided for this purpose as means for electrically conductive contact with a conductor brought up to the busbar crocodile clip.
  • the clamping body is placed in the inner part of the housing. In the process, the clamping body holding means come into engagement with one another (the clamping body is placed in the housing inner part with the clamping body holding means engaging in one another).
  • the clamping body is placed in the inner part of the housing first or in a second step.
  • the housing inner part can with the components attached therein / thereon as a whole inserted into the housing outer part and latched there, for example.
  • busbar alligator clip can also be developed by means of individual or several method features which enable or promote the execution of the method, and the manufacturing method can also be developed in accordance with one or more device features necessary for executing the method.
  • the advantage of the innovation is that the fixation of the busbar alligator clip on the respective busbar can be permanently loaded both electrically and mechanically. Because the clamping body with its hook-shaped extension is a solid component, the clamping screw can be used to fix the busbar alligator clip on the respective busbar, as is known from a screw clamp or the like.
  • the fixation on the busbar is therefore extremely mechanically resilient and is also suitable, for example, for environments in which the busbar alligator clip is exposed to particular mechanical stresses, such as vibrations, as often occur during the operation of electrical devices. Because the clamping body with its hook-shaped extension is designed as a solid component, there is a large-area contact at least between that part of the extension that functions as a stop for the clamping device and the busbar.
  • Such a large-area mechanical contact also results in reliable electrical contacting of the respective busbar, with the entire surface of the part of the extension acting as a stop and the entire underside of the clamping screw as contact points and thus points for electrical charge transfer available stand.
  • a possibility for connecting electrical conductors in spring clip technology is also very mechanically and electrically resilient.
  • a connection using clamping spring technology makes contact with a hard vein (wire), for example a copper wire or the like, by means of an effective spring force in a mechanically permanent and electrically safe manner in a retaining profile of a spring mechanism.
  • the mechanical and electrical connection is based on self-locking of the respective spring mechanism and, if necessary, the wire can be easily released by actuating the respective spring mechanism accordingly.
  • connection point made using spring clip technology is characterized by a connection that can be established quickly and easily while at the same time being easy to detach.
  • a connection point in particular a connection point of this type implemented in the form of a spring-loaded terminal, avoids sources of error, such as those that can arise in classic screw connections due to the development of heat or vibrations.
  • spring-loaded terminals act as means for electrically conductive contacting of a conductor, which have a leg fixed in the housing or by means of the housing and a movable leg, with a free end of each fixed leg engaging the recess in the clamping body.
  • the spring-loaded terminals are thus also connected to the clamping body (at least mechanically) and the clamping body holding means, for example in the form of the recesses in the Clamping bodies also directly ensure a defined position of the clamping body relative to the spring-loaded terminals.
  • the overall result is that the spring-loaded terminals, the clamping body and the housing are in a defined position relative to one another, which enables the busbar crocodile clip to function.
  • the clamping body for electrically conductive contacting of a conductor comprises lateral contact surfaces and on their surfaces at least one notch means, for example a notch means in the form of at least one rib running transversely to the longitudinal axis of an inserted conductor end.
  • a notch means or means ensure an increase in the holding force acting on a conductor connected to the busbar crocodile clip.
  • the clamping body is a solid, one-piece component with at least one clamping screw threaded hole
  • the clamping device comprising at least one clamping screw guided in the clamping screw threaded hole and wherein the busbar alligator clip can be fixed to the busbar by means of the clamping screw by the busbar is clamped by means of the clamping screw and the part of the extension acting as a stop.
  • the clamping body can be produced in one operation and the extension is mechanically sufficiently firmly connected to the clamping body to prevent the when a busbar is clamped, in particular when clamping a busbar between a clamping screw and the clamping body extension to be able to absorb forces that occur.
  • the clamping device for fixing the busbar crocodile clip to the busbar is independent of one or more spring-loaded terminals, conductors can be connected to the busbar crocodile clip or detached from it without loosening the fixation of the busbar crocodile clip to the busbar and vice versa.
  • a solution for fixing the busbar crocodile clip from the busbar comes e.g. then into consideration if their position on the busbar is to be changed, for example to attach more busbar alligator clips to the busbar. For such a situation, too, it is advantageous if electrical conductors that may already be connected to the busbar crocodile clip do not have to be released and have to be reconnected later.
  • the housing is an at least two-part housing with an inner housing part and an outer housing part that accommodates the inner housing part, and that the housing-side clamping body holding means, i.e., for example, the lugs engaging the recesses in the clamping body, are part of the housing inner part are.
  • the spring-loaded terminals and the clamping body can be attached to the housing inner part, the housing inner part ensuring the defined relative position between the housing inner part, the clamping body and the spring-loaded terminals, and the resulting combination can be introduced as a whole into the housing outer part, whereby the Insertion into the outer part of the housing completes the production of the busbar crocodile clip.
  • the outer part of the housing fixes the spring-loaded terminals placed in the inner part of the housing and the clamping body in their relative position provided for the function of the busbar crocodile clip.
  • the housing inner part and the housing outer part are optionally detachably connected to one another, for example by locking. Overall, a tool-free and easily automatable production of the busbar crocodile clip is thus possible.
  • a recess determined by the geometry of the hook-shaped extension between the part of the extension that functions as a stop and an underside of the other clamping body, in particular in the area of a screw threaded hole is a combination of the busbar crocodile clip with busbars of different thicknesses and width allowed.
  • a maximum thickness of busbars, on which a busbar crocodile clip of the type described here and below can be fixed, is a thickness that corresponds to a clear distance between the part of the extension acting as a stop and an opposite underside of the other clamping body, in particular the area with the clamping screw threaded bore , corresponds.
  • the busbar crocodile clip can be combined with busbars of lesser thickness, for example by screwing a clamping screw into the thread formed in the clamping screw threaded bore until it makes contact with an upper side of the busbar.
  • a minimum thickness of a busbar on which a busbar crocodile clip of the type described here and below can be fixed is a thickness that results from a clear width of the type described above minus a free length of the thread of the clamping screw. Theoretically, the free thread of the clamping screw extends even without a busbar inserted into the recess formed by the extension to the part of the extension that functions as a stop, so that even very thin busbars can be reliably contacted.
  • busbars have a minimum thickness determined by static considerations, which can be achieved even without the busbar, e.g. to bend or the like a fixation of one or more busbar crocodile clips allowed. Based on this premise, the busbar crocodile clip can be securely connected to busbars of any thickness below the maximum thickness described above.
  • the housing also encloses the hook-shaped extension apart from the recess for combining with the busbar, the current-carrying parts are protected as much as possible.
  • the extension with the housing section formed there can be incorporated into the design in this way the busbar alligator clip must be included as a whole, so that the result is an attractive appearance.
  • the contact protection can be improved even further if the busbar is equipped with covers, e.g. cover caps, which are combined with the busbar adjacent to the busbar crocodile clip, e.g. by sliding on, snapping on, etc.
  • busbar alligator clip with its housing covers a surface of the busbar when it is attached to a busbar, effective protection against contact is also achieved.
  • Operating personnel e.g. slips off when connecting or disconnecting electrical conductors from a busbar crocodile clip with a screwdriver, cannot come into contact with the area of the surface of the busbar covered by the housing of the busbar crocodile clip, so that a risk for operating personnel is reduced.
  • the busbars are also equipped with appropriate cover caps, the power distribution can be made almost fingertip safe.
  • a clamping screw or the like intended for fixing the busbar alligator clip to the busbar is reset by actuating elements provided in the area of the upper part of the housing for fixing electrical conductors to the busbar alligator clamp, for example spring-loaded clamps
  • contact protection is created in a simple manner and also provides a possibility for operating personnel to identify those parts (clamping screw, actuating element, etc.) which are provided for fixing the busbar crocodile clip on the one hand or for connecting electrical conductors to the busbar crocodile clip on the other hand. Incorrect operation is largely ruled out and operating personnel will intuitively use the clamping screw, actuating element, etc. on the top of the busbar crocodile clip correctly.
  • FIG. 1 shows an isometric side view of an embodiment of an already known busbar crocodile clip 10 ( DE 20 2011 000 622 U1 , DE 10 2012 203 554 A ).
  • the busbar alligator clip is attached to a busbar 12.
  • FIG. 13 shows a sectional illustration of the embodiment of the busbar alligator clip 10 according to FIG Fig. 1 .
  • the busbar alligator clip 10 has a clamping body 16 in a housing 14, which is characterized by a hook-shaped extension 18.
  • the busbar crocodile clip 10 is by means of the extension 18 in its function as a stop Clamping device can be fixed on busbar 12.
  • this clamping device further comprises at least one clamping screw 22 guided in a clamping screw threaded bore 20 in the clamping body 16.
  • the clamping body 16 is a solid component, for example a brass block, an aluminum block or generally a block made of an electrically conductive metal.
  • the busbar crocodile clip 10 has conductor insertion openings 26 on opposite connection sides 24.
  • the hook-shaped extension 18 is made in one piece and is connected in one piece to the clamping body 16.
  • the clamping body 16 thus forms a shaped metal block with its hook-shaped extension 18.
  • the busbar crocodile clip 10 can be fixed to the busbar 12 with the clamping screw 22, in that the busbar 12 is clamped by means of the clamping screw 22 and the part of the extension 18 functioning as a stop.
  • the busbar 12 is located in a recess 30 formed by the clamping body 16 and its hook-shaped extension 18 ( Fig. 3 ) and is clamped there with the clamping screw 22 against the hook-shaped extension 18 of the clamping body 16 as in a screw clamp.
  • This fixation of the busbar crocodile clip 10 on the busbar 12 produces a mechanically very strong and resilient contact between the busbar crocodile clip 10 and the busbar 12.
  • the illustrated embodiment of the busbar alligator clip 10 is used to fix one end of a conductor 32 inserted through a conductor insertion opening 26 into a bore in the clamping body 16 (in Fig. 2 Not shown; please refer Fig. 4 ) shown as actuating element 34 each have a clamping screw.
  • FIG. 3 shows an isometric view of an embodiment of the busbar crocodile clip 10 according to the invention.
  • This also has a clamping body 16 in a housing ( Fig. 5 ) with a hook-shaped extension 18, by means of which the busbar alligator clip 10 on a busbar 12 ( Fig. 1 , Fig. 2 ) can be fixed to obtain an electrically conductive contact with the busbar 12.
  • the preceding explanations on the clamping body 16 and its extension 18 and on the fixing of the busbar crocodile clip 10 on a busbar 12 apply accordingly to the busbar crocodile clip 10 presented for the first time in the description presented here. Due to the geometry of the hook-shaped extension 18 and the resulting width of the recess 30, a combination of the busbar crocodile clip 10 with busbars 12 of different cross-sections is possible.
  • the busbar crocodile clip 10 has one or more conductor insertion openings 26 on an upper side 28 facing away from the extension 18 - in the example shown, two conductor insertion openings 26, namely one conductor insertion opening each on both sides of a central axis in the area of the clamping screw 22 26.
  • a tool insertion opening 36 belongs to each conductor insertion opening 26. In the exemplary embodiment shown, the tool insertion openings 36 are located, starting from the central axis of the busbar crocodile clip 10, following each conductor insertion opening 26.
  • FIG. 4 shows the busbar alligator clip 10 according to Figure 3 with conductors 32 connected to the busbar crocodile clip 10 and inserted into the conductor insertion openings 26.
  • the representations in Figure 5 and Figure 6 show the busbar alligator clip 10 according to Figure 3 in a partially sectioned view.
  • the representation in Figure 5 shows the busbar alligator clip 10 in an isometric view as in FIG Figure 3 .
  • the representation in Figure 6 shows the busbar alligator clip 10 in a side view. To maintain the sectional view, one of the two must be aligned with the vertical axis (sheet level in the illustration in Figure 6 ) the busbar crocodile clip 10 parallel side walls of the housing 14 has been removed.
  • the view of the clamping body 16 in the interior of the housing 14 and the actuating elements 34 of the busbar crocodile clip 10 becomes clear.
  • the busbar crocodile clip 10 has actuating elements 34 using spring clip technology.
  • a spring-loaded terminal 34 acts as the actuating element 34 using spring-clamp technology.
  • Spring-loaded terminals 34 are basically known per se and are known to be sometimes also referred to as cage clamps, cage clamps or spring clamps.
  • the spring-loaded terminal 34 functions as an actuating element 34 because when a conductor 32 is connected to the busbar crocodile clip 10, its end actuates the spring-loaded terminal 34 and because when a conductor 32 connected to the busbar crocodile clip 10 is loosened, the spring-loaded terminal 34 is opened by means of a tool 38 inserted into a tool insertion opening 36 ( Fig. 8 ) the spring-loaded terminal 34 is actuated to release the end of the conductor.
  • the housing 14 is an at least two-part housing 14. This comprises a preferably one-piece housing inner part 40 and an outer housing part 42 accommodating the inner housing part 40.
  • a detachable connection can be used to combine the inner housing part 40 with the outer housing part 42.
  • Shown as an example of basically any means for releasably fixing the housing inner part 40 in the housing outer part 42 are a latching hook formed on the housing inner part 40 and a corresponding latching hook receptacle formed in the housing outer part 42 for receiving the respective latching hook.
  • the housing inner part 40 carries the or each actuating element 34 of the busbar crocodile clip 10 and the clamping body 16.
  • a spring-loaded seat contour is formed in the housing inner part 40 for at least some sections of the form-fitting receiving and fixing of a spring-loaded terminal 34.
  • the housing inner part 40 in the embodiment shown has two lugs 44 which engage in corresponding recesses 46 in the clamp body 16 (in the illustration in FIG Figure 5 only one nose 44 and only one recess 46 is designated).
  • the lugs 44 on the side of the housing inner part 40 and the recesses 46 in the clamping body 16 are examples of clamping body holding means 44, 46.
  • a lug 44 functioning as a clamping body holding means 44 can also be part of the clamping body 16 and to engage in a clamping body holding means 46 acting recess 46 in the housing inner part 40 be determined. It is essential that the clamping body 16 is detachably connected to the housing inner part 40 by means of the clamping body holding means 44, 46 and a defined relative position of the housing inner part 40 and the clamping body 16 is ensured by means of the clamping body holding means 44, 46.
  • a basically optional configuration is shown in which one of the free ends of the clamping spring / spring-loaded terminal 34 also engages in the recess 46 in the clamping body 16.
  • This free end of the spring-loaded terminals 34 connects to one of the illustration ( Fig. 6 ) horizontal Legs of the spring-loaded terminals 34.
  • This leg which is horizontal in the illustration, rests on a support surface 48 which is likewise horizontal in the illustration and is formed in the housing inner part 40.
  • spring-loaded terminals 34 Since these free ends of the spring-loaded terminals 34 also engage in the recesses 46 in the clamping body 16, they also function as clamping body holding means 44, 46 and guide tensile and / or compressive forces due to the clamping body 16 onto the housing inner part 40, in particular by tensile and / or compressive forces be distributed on the support surface 48 of the housing inner part 40 due to the clamping body 16. This relieves the noses 44 of the housing inner part, especially when metallic spring-loaded terminals 34 are used as spring-loaded terminals.
  • FIG. 7a , 7b shows a side view of a further sectional view of the busbar alligator clip 10 according to Figure 3 .
  • the cutting plane is in comparison to the cutting plane in Figure 5 and Figure 6 deeper and runs approximately in the middle through the busbar crocodile clip 10.
  • a connection space 50 adjoins the conductor insertion openings 26.
  • the stripped end of a conductor 32 to be connected to the busbar crocodile clip 10 is led into this area (the illustration in Figure 8 shows a connected conductor 32).
  • the stripped end of the conductor 32 is passed through an eyelet in one of the two legs of the spring-loaded terminal 34 in a manner known per se.
  • This eyelet is part of the retaining profile of the spring-loaded terminal 34 and is intended for passing the end of the conductor through.
  • the eyelet is in the leg that is horizontal in the illustration.
  • the conductor end is passed through this and reaches the connection space 50 in the process.
  • the connection space 50 the conductor end is pressed by means of the other leg (leg without eyelet) against a side surface of the clamping body 16 functioning as a contact surface 52.
  • the clamping body 16 optionally has one or more notch means on its contact surface 52 to improve the holding of a conductor end, for example in the form of the ribs shown (not designated).
  • the respective notch means in particular the or each rib, notches the surface of the conductor end with its surface or edge facing the conductor end.
  • a similar notch effect is associated with the end of the movable leg of the spring clamp 34. With at least one such rib on the contact surfaces 52 of the clamping body 16, the conductor end is additionally held by notches on both sides.
  • clamping screw 22 is shown clearly above the clamping screw threaded bore 20. With a clamping screw 22 screwed into the clamping screw threaded bore 20, the head of the clamping screw 22 is located well below the top 28 of the busbar alligator clip 10, which is defined by the surface of the housing inner part 40. After tightening the clamping screw 22 to fix the busbar alligator clamp 10 on a busbar 12, the head is the clamping screw 22 is set back even further from the top 28.
  • the busbar alligator clip 10 can be briefly released from the busbar 12, for example, in order to change a position of the busbar alligator clip 10 on the busbar 12 without having to disconnect any electrical conductors 32 that may already be connected to the busbar crocodile clip 10.
  • FIG. 8 shows the sectioned busbar alligator clip 10 according to FIG Figure 7 with conductor ends inserted into the conductor insertion openings 26 and into the connection spaces 50. It can be seen that the conductor ends are pressed against one of the contact surfaces 52 of the clamping body 16 by means of the movable leg of the respective spring-loaded terminal 34 in order to maintain an electrically conductive contact with the clamping body 16. It can also be seen that a conductor 32 connected to the busbar crocodile clip 10 can be released again from the busbar crocodile clip 10 by means of a tool 38, for example the blade of a screwdriver (not shown to scale).
  • the movable leg of the respective spring-loaded terminal 34 is deflected further (further than by the conductor end itself) by means of the tool 38, so that the free end of the movable leg of the spring-loaded terminal 34 disengages from the surface of the conductor end.
  • the conductor end can then be pulled out of the connection space 50 and the conductor insertion opening 26.
  • the representation in Figure 9 shows on the one hand the busbar alligator clip 10 in a representation as in FIG Figure 7 as well as in a sectional view along the cutting line labeled AB.
  • the section along the section line AB runs just above the leg of the spring-loaded terminals 34, which is horizontal in the illustration. In the sectional illustration, the view of this is accordingly Legs of the spring-loaded terminals 34 and the eyelet therein and on the connection space 50 connected below are free. The cut, movable leg of the spring-loaded terminals 34 can also be seen.
  • FIG. 10 shows, in a schematically simplified manner, snapshots during the manufacture / assembly of a busbar crocodile clip 10. It is shown that in a first step the spring-loaded terminals 34 are first placed in the housing inner part 40, namely each in a clamping spring seat contour provided for this purpose. In a subsequent second step, the clamping body 16 is placed in the housing inner part 40. The lugs 44 of the housing inner part 40 and the recesses 46 in the clamping body - or generally the respective clamping body holding means 44, 46 - come into engagement with one another. A component with three different components, namely the housing inner part 40, the clamping body 16 and the spring-loaded terminals 34, is thus created. The order of steps 1 and 2 can also be reversed for its production.
  • This component 40, 16, 34 is combined as a whole with the outer housing part 42 and pushed into the outer housing part 42 for this purpose.
  • the housing inner part 40 can be connected to the housing outer part 42 in a latching manner. The production / assembly of the busbar crocodile clip 10 is thus completed without tools.
  • a busbar crocodile clip 10 is specified according to FIG DE 20 2011 000 622 U1 or the DE 10 2012 203 554 A with a clamp body 16 that can be fixed to a busbar 12 in the manner of a screw clamp or optionally according to FIG DE 20 2011 000 622 U1 or the DE 10 2012 203 554 A with means 34 for electrically conductive contacting of a conductor 32 brought up to the busbar crocodile clip 10 with the clamping body 16 using spring clip technology, that is to say a busbar crocodile clip 10 using spring clip technology

Landscapes

  • Multi-Conductor Connections (AREA)
  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
  • Installation Of Bus-Bars (AREA)
  • Connections Arranged To Contact A Plurality Of Conductors (AREA)

Claims (7)

  1. Pince crocodile à barre omnibus (10) dotée d'un corps de pince (16) disposé dans un boîtier (14) qui présente un prolongement (18) en forme de crochet, et dotée de moyens (18, 22) servant à établir un contact électriquement conducteur avec une barre omnibus (12),
    la pince crocodile à barre omnibus (10) pouvant être fixée à la barre omnibus (12) au moyen d'un dispositif de serrage comprenant le prolongement (18) dans sa fonction de butée,
    caractérisé par
    des moyens (34) pour établir un contact électriquement conducteur entre un conducteur (32) amené à proximité de la pince crocodile à barre omnibus (10) et le corps de serrage (16) grâce à la technologie à ressort de serrage, ainsi que
    des moyens (40, 44, 46) pour assurer une position relative définie du boîtier (14), du corps de serrage (18) et du ou de chaque moyen (34) pour établir un contact électriquement conducteur avec un conducteur (32),
    dans laquelle le boîtier (14) comprend une partie intérieure de boîtier (40) et une partie extérieure de boîtier (42) recevant la partie intérieure de boîtier (40), la partie intérieure de boîtier (40) et, en outre, les moyens de retenue de corps de serrage (44, 46) servant de moyens (44, 46) pour assurer la position relative définie, d'une part, dans le boîtier (14, 40) ou au niveau de celui-ci et, d'autre part, dans le corps de serrage (16) ou au niveau de celui-ci, et
    le corps de serrage (16) étant relié de manière amovible à la partie intérieure de boîtier (40) au moyen des moyens de retenue de corps de serrage (44, 46).
  2. Pince crocodile à barre omnibus (10) selon la revendication 1,
    dans laquelle les évidements (46) dans le corps de serrage (16) ainsi que les ergots (44) destinés à venir en prise dans lesdits évidements (46) servent de moyens de retenue de corps de serrage (44, 46) au niveau du boîtier (14).
  3. Pince crocodile à barre omnibus (10) selon la revendication 2,
    dans laquelle des pinces à ressort (34) comportant une branche fixe et une branche mobile servent de moyens (34) servant à établir un contact électriquement conducteur avec un conducteur (32),
    dans laquelle une extrémité libre de chaque branche fixe vient en prise dans l'évidement (46) dans le corps de serrage (18).
  4. Pince crocodile à barre omnibus (10) selon l'une des revendications précédentes,
    dans laquelle le corps de serrage (18) comprend des surfaces de contact (52) latérales servant à établir un contact électriquement conducteur avec un conducteur (32) et au moins un moyen d'entaillage sur chacune de leurs surfaces.
  5. Pince crocodile à barre omnibus (10) selon l'une des revendications précédentes,
    dans laquelle le corps de serrage (16) est un composant solide d'une seule pièce avec au moins un alésage fileté de vis de serrage (20),
    dans laquelle le dispositif de serrage comprend au moins une vis de serrage (22) guidée dans l'alésage fileté (20) de la vis de serrage et
    dans laquelle, au moyen de la vis de serrage (22), la pince crocodile à barre omnibus (10) peut être fixée à la barre omnibus (12) par serrage de la barre omnibus (12) au moyen de la vis de serrage (22) et de la partie du prolongement (18) agissant comme butée.
  6. Pince crocodile à barre omnibus (10) selon l'une des revendications précédentes,
    dans laquelle le boîtier (14) est un boîtier (14) au moins en deux parties comportant une partie intérieure de boîtier (40) et une partie extérieure de boîtier (42) recevant la partie intérieure de boîtier (40), et
    dans laquelle les moyens de retenue de corps de pince (44) côté boîtier font partie de la partie intérieure de boîtier (40).
  7. Procédé de fabrication d'une pince crocodile à barre omnibus (10) selon la revendication 6,
    dans lequel des pinces à ressort (34) servant de moyens (34) servant à établir un contact électriquement conducteur avec un conducteur (32) amené à proximité de la pince crocodile à barre omnibus (10) sont placées dans la partie intérieure de boîtier (40) dans des évidements prévus à cet effet,
    dans lequel le corps de serrage (16) est placé dans la partie intérieure de boîtier (40) en mettant en prise les moyens de retenue de corps de serrage (44, 46) l'un dans l'autre, et
    dans lequel la partie intérieure de boîtier (40) est insérée dans la partie extérieure de boîtier (42) avec les pinces à ressort (34) et le corps de serrage (16) montés dans celle-ci/sur celle-ci.
EP17702024.5A 2016-01-21 2017-01-19 Pince crocodile à barre omnibus dotée de la technologie à ressort de serrage et procédé de réalisation d'une pince crocodile à barre omnibus Active EP3405998B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202016100281.8U DE202016100281U1 (de) 2016-01-21 2016-01-21 Sammelschienenabgreifklemme mit Klemmfedertechnik
PCT/EP2017/051123 WO2017125517A1 (fr) 2016-01-21 2017-01-19 Pince crocodile à barre omnibus dotée de la technologie à ressort de serrage

Publications (2)

Publication Number Publication Date
EP3405998A1 EP3405998A1 (fr) 2018-11-28
EP3405998B1 true EP3405998B1 (fr) 2020-08-12

Family

ID=57914945

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Application Number Title Priority Date Filing Date
EP17702024.5A Active EP3405998B1 (fr) 2016-01-21 2017-01-19 Pince crocodile à barre omnibus dotée de la technologie à ressort de serrage et procédé de réalisation d'une pince crocodile à barre omnibus

Country Status (5)

Country Link
US (1) US10855001B2 (fr)
EP (1) EP3405998B1 (fr)
CN (1) CN108475857B (fr)
DE (1) DE202016100281U1 (fr)
WO (1) WO2017125517A1 (fr)

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DE19934550B4 (de) * 1999-07-20 2008-06-26 Hager Electro Gmbh Anschlußklemme für elektrische Leiter
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Also Published As

Publication number Publication date
US20190386405A1 (en) 2019-12-19
DE202016100281U1 (de) 2017-01-26
CN108475857A (zh) 2018-08-31
US10855001B2 (en) 2020-12-01
CN108475857B (zh) 2020-09-15
EP3405998A1 (fr) 2018-11-28
WO2017125517A1 (fr) 2017-07-27

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