DE202018102883U1 - Phase inverter plug with control system - Google Patents

Abstract

Plug (100) for a three-phase plug connection between the plug (100) and a socket, the plug (100) comprising a phase-reversing device (134), characterized in that the plug (100) has a control system (132) with an electronic circuit (162) and a signal generator (192), the electronic circuit (162) being designed to detect a direction of rotation of the three-phase current provided by the socket when the plug (100) is connected to the socket, and the signal generator (192) is designed such that to signal at least one detected direction of rotation.

Description

The invention relates to a plug for a three-phase plug connection between the plug and a socket, wherein the plug comprises a phase-reversing device.

Such, ie in particular wired, plug are for example from the Standard DIN 60309 known, this standard also describes corresponding sockets and phase inverter.

Sockets in the sense of this disclosure are counterparts of the three-phase plug connection to the plug, which can provide three-phase current. For example, a socket is spatially fixed, for example, in a wall of a building. Other sockets are particularly portable, such as wired coupling sockets.

Such sockets provide a three-phase current, with one direction of rotation of the three-phase current should be clockwise to standard.

However, right-handed three-phase current is not provided with each outlet. The reasons for this are, for example, wiring faults in the socket and their connection, such as an intermediate extension cable or carelessly laid connections on construction sites.

If an electrically operated machine with a wrong rotating three-phase current, the direction of rotation is therefore left-handed, operated, this machine can not bring their full performance, and it can damage the machine, resulting in the worst case, the machine is destroyed.

Are known cables with connectors, which have a phase inverter. In particular, the phase conversion device comprises a phase inverter.

In this case, the positions of two contact pins per one electrical line of the plug can be reversed with a phase inverter, so that the plug can be adapted to the direction of rotation of the three-phase current provided by the socket and connected via a cable to the plug working machine by an appropriate setting of the Phase turner with three-phase current with a desired direction of rotation, so in particular always with standard-compliant clockwise three-phase current can be supplied.

In addition, hand-held devices are known which can be connected to sockets and with which the direction of rotation of the three-phase current provided by the socket can be checked.

Thus, it is currently necessary to first check the direction of rotation of the three-phase current provided with external sockets and then adjust the phase inverter accordingly if necessary. This is time consuming. The handling is complicated, since in addition to the machine nor the handset to check the direction of rotation is required and this must always be carried at changing sites for the machine.

The invention is therefore based on the problem to provide a solution with which electrically operated machines are always supplied in a simple and reliable manner with three-phase current of the desired direction of rotation.

According to the invention this object is achieved by a plug of the type mentioned above, wherein the plug comprises a control system with an electronic circuit and a signal generator, wherein the electronic circuit is formed in a connection of the plug with the socket, the direction of rotation of the three-phase current provided by the socket capture, and the signal generator is designed to signal at least one detected direction of rotation.

One of the advantages of the invention is to be seen in that by the plug, which is electrically connected in an operating condition with the electrically driven machine and over which the machine receives its three-phase current, even by means of the control system with the electronic circuit, the direction of rotation of the provided from the socket Three-phase current is detected. In addition, a user of the work machine is signaled by the signal generator at least one direction of rotation and the user can accordingly, if necessary, adjust the phase inverter of the phase reversing device of the direction of rotation accordingly.

In addition, in this solution is particularly advantageous that in addition to the machine no further handheld device for testing the direction of rotation must be carried, since typically each electrically powered machine includes a plug and if this plug according to the invention is formed by this signals at least one direction of rotation of the provided three-phase current is and by means of the phase inverter of the phase reversing device of the plug can be adapted to the direction of rotation.

The solution according to the invention also has the advantage that work machines in a simple and cost-effective manner with a plug according to the invention can be retrofitted and thus the invention is also applicable to work machines, which are already in use by users.

Preferably, it is provided in the case of the plug that it comprises in each case one line comprising a contact pin for each phase of the three-phase current. Conveniently, the plug additionally comprises in each case one line, each with a contact pin, one of these lines being provided as a protective line and the other as a neutral line.

Preferably, at least one, preferably several, in particular all, of these lines has one or more of the features listed below.

In preferred embodiments, at least one, preferably each, of the leads comprises a connection receptacle for a conductor of a cable.

Thus, cables which have a conductor for each phase of the three-phase current and, for example, a protective conductor and a neutral, can be retrofitted in a simple manner with the solution according to the invention, since the conductors can be easily accommodated in the respective connection receptacle and connected to the corresponding line.

For example, it is provided that the contact pin of the corresponding line comprises the connection receptacle.

In particularly preferred embodiments, it is provided that at least one line, preferably each of the lines transmitting a phase of the three-phase current, respectively, comprises an adapter element.

This preferably allows a simpler and more flexible installation and a more flexible connection of the line in the plug. It is particularly favorable if at least one or exactly one adapter element, preferably several, in particular each of the adapter elements, comprises one or more of the features explained below.

In particularly advantageous embodiments, it is provided that the adapter element comprises the connection receptacle of the corresponding line. This is in a particularly simple manner, the connection recording in the plug can be integrated.

It is preferably provided that the adapter element is designed to be electrically conductive. Thus, the adapter element can be installed in a structurally simple manner as part of the line.

In particular, the adapter element comprises a metal, for example brass, and preferably it is essentially formed therefrom.

In some embodiments, it is provided that the adapter element is formed substantially in one piece with the contact pin.

In particularly preferred embodiments, the adapter element is a separate component from the contact pin. In this case, the invention can be implemented by the installation of the adapter element in a structurally simple manner.

In particular, the adapter element with the corresponding contact pin is electrically conductive and typically mechanically, in particular positively and / or non-positively and / or materially connected.

For example, the adapter element for connection to the contact pin comprises a pin.

In particular, it is provided that the contact pin comprises an engagement opening for the connection with the adapter element.

In preferred embodiments, it is provided that the adapter element engages with the pin in the engagement opening of the contact pin of the corresponding line. This provides a structurally simple connection of the adapter element to the contact pin.

It is preferably provided that a stop surface extends at least partially around the pin on the adapter element. It is particularly advantageous if the adapter element rests with the abutment surface on the contact pin and a particularly good grip between the elements is achieved.

In particularly advantageous embodiments, it is provided that the adapter element has a twist protection. Thus, the adapter element is not only true to the position of the plug but also arranged with respect to its rotational position in the plug. This is of particular importance if the adapter element transmits a phase as part of the line and is formed rotationally asymmetrically, for example by a fastening element arranged in the latter. Because then the adapter element must not rotate, otherwise, if necessary, a rotationally asymmetric from this outstanding part of another phase-transmitting line could come too close and could cause a short circuit in the plug. Such an undesirable rotation counteracts the anti-rotation.

For example, it is provided that the adapter element for the anti-rotation comprises a further part.

It is particularly favorable, however, if the pin is rotationally asymmetrical. Thus, the anti-rotation is achieved in a structurally simple manner.

In particular, it is favorable for a particularly simple and at the same time firm connection when the pin has a fixing surface on which the adapter element, for example with a fixing element, is fixed with the corresponding contact pin. For example, the fixing element acts on the pin on the fixing surface.

It is particularly advantageous if the pin is fixed in rotation with the fixing pin with the corresponding contact pin.

For example, the fixing surface is substantially planar. In this way, the fixing element can engage in a particularly favorable manner on the fixing surface and / or the pin is formed essentially rotationally asymmetrically by this fixing surface in a simple manner.

In particular, the electronic circuit for detecting the direction of rotation is connected to the lines transmitting the phases of the three-phase current.

Preferably, the electronic circuit receives its required energy from the three-phase transmitting lines. Thus, an alternative energy source, such as a battery, is not necessary.

It is particularly advantageous if in each case one strand connects the electronic circuit to one of the lines, in particular of the phase-transmitting lines.

It is particularly advantageous when at least one strand is connected to the corresponding line, preferably each of the strands, each with the corresponding line at a different location than the point at which the conductor is connected to the line or in the assembled state the conductor is connected to the line. Thus, therefore, preferably the strand and the conductor are connected at different points of the corresponding line with this, which is advantageous in terms of safety.

In particular, a strand or several strands are positively or materially connected to the corresponding line.

For example, it is provided that one strand or several strands are / are soldered or welded to the corresponding line, in particular to its adapter element or its contact pin.

In particular, it is provided that at least one line, in particular each of the phase-transmitting lines, respectively, has a connection receptacle for the corresponding stranded wire. For a connection of the wire to the phase-transmitting line in a simple manner possible.

Thus, in preferred embodiments, the electronic circuit is connected via a respective strand and in particular the solder joint or the welded joint or the corresponding terminal receptacle to the corresponding line.

In particular, at least one connection receptacle, for example several, preferably each of the connection receptacles, has one or more of the features explained below.

It is particularly preferred if the connection receptacle and the connection receptacle are each arranged at different points of the corresponding line.

In some advantageous embodiments, it is provided that the corresponding adapter element at least partially forms the connection receptacle of the corresponding line.

In some preferred embodiments it is provided that the corresponding contact pin at least partially forms the connection receptacle of the corresponding line.

It is advantageous if the corresponding adapter element and the corresponding contact pin of the line forms its connection receptacle.

In particular, it is provided that the pin and the engagement opening form the connection receptacle.

In preferred embodiments it is provided that the connection receptacle comprises a bearing surface for the recorded strand. For a favorable reception of the strand is given, in which in particular the strand can be applied in a simple manner.

It is advantageous if the bearing surface is arranged on the adapter element.

It is particularly advantageous if the support surface and the fixing surface are essentially of a same surface of the adapter element are formed, whereby preferably the adapter element can be structurally simple.

In particular, it is provided that the electronic circuit, in particular all elements of the control system, is arranged in the housing of the plug, so that the installation space in an interior of the housing for the electronic circuit or for all elements of the control system is utilized and the electronic circuit or the entire control system is protected by the housing.

Advantageously, the electronic circuit is arranged on an electronic board, wherein in particular the electronic board is essentially a circuit board.

In particular, the electronics plate is arranged on the housing.

For example, the electronics plate is screwed to the housing.

In a particularly preferred embodiment, it is provided that, alternatively or additionally, the electronics plate is glued to the housing.

In particularly advantageous embodiments, it is provided that the plug comprises at least one strand, in particular for each of the strands, a strain relief device.

In particular, when the wire is pulled on the strand, such as during the assembly of the plug, the strain relief device absorbs at least part of a tensile force and thus advantageously relieves the stranded wire.

For example, it is provided that the electronics plate has at least one passage opening through which at least one of the strands passes.

In particular, a through-opening is provided for each of the strands.

It is preferred if the strain relief device comprises the passage opening, in particular is essentially formed by this. As a result, a strain relief device is provided with its advantages in a structurally simple manner.

The signal generator can signal in different ways the at least one detected direction of rotation.

For example, the signal transmitter emits different signals for a detected left-handed direction of rotation and for a detected clockwise direction of rotation, with the advantage that the user receives a signal via the respective detected direction of rotation.

In preferred embodiments, it is provided that the signal generator emits a signal when the rotation direction is incorrectly preset, that is to say in particular in the case of a detected left-handed direction of rotation, and thus the user is warned about the rotation direction preset as false. In particular, the signal generator does not output a signal in the case of a correctly preset direction of rotation, that is to say in particular in the case of a detected right-handed direction of rotation.

In other advantageous embodiments, the signal generator emits a signal in the correctly preset direction of rotation, ie in particular in a detected clockwise direction, whereby the user has a check whether the detected direction of rotation corresponds to the correctly preset direction of rotation. For example, it is provided that the signal generator in the wrong preset direction of rotation, ie in particular in a detected left-handed direction, outputs no signal.

In preferred embodiments, it is provided that the signal generator is designed as an optical signal generator. For example, the signal generator for the signal output comprises a light-emitting device, in particular a lamp or an LED.

In this case, the signal transmitter, in particular the light-emitting device, is preferably arranged in the interior of the housing, so that advantageously the installation space given therein is utilized and in particular the housing protects the signal transmitter, for example the light-emitting device.

In some advantageous embodiments it is provided that a housing wall of the housing in a region of the light-emitting device runs closed over it. This is in a particularly favorable manner, the light-emitting device protected by the closed over this housing wall from external harmful influences.

In this case, provision is made in particular for the light emitted by the light-emitting device to penetrate the housing wall to the outside, wherein, in particular, the wavelength and intensity of the light are matched to one another with the properties of the housing wall. Especially favorable embodiments, the housing wall is formed in this area substantially transparent to this light.

In other preferred embodiments it is provided that the housing, for example for the light emitted by the light-emitting device, comprises a signal opening. In this case, a light-emitting device which emits light of low intensity can be used, so that the energy consumption is lower.

In particular, the signal generator is designed to emit acoustic signals. In this case, the signal transmitter in areas of use, in which the plug can be dirty, can be reliably used by the dirt-resistant signal output in a favorable manner.

In particular, it is provided in some embodiments that the signal generator comprises an interface for a data transmission, in particular for a wireless data transmission. This can be checked in a favorable manner with a receiver for the data comprehensive testing device, the detected direction of rotation. Preferably, the tester is a handy mobile tester, in particular a mobile telecommunication terminal.

In favorable embodiments, it is provided that the plug comprises a holding device for a closure flap of the socket. For example, the holding device comprises a groove, in which a nose of the closure flap engages in a closed three-phase plug connection and is thus held.

It is particularly advantageous if the signal generator, in particular the optical signal transmitter, is arranged on one side of the plug on which the holding device for the closure flap of the socket is arranged. In particular, the signal generator, in particular the optical signal transmitter, is arranged near the view of the holding device. Thus, it is particularly conspicuous for the user when the three-phase plug connection and arranging the closure flap in the holding device of the signal generator outputs a signal, whereby in particular the reliability of the verification of the direction of rotation is increased.

It is particularly favorable if the housing of the plug is a plug housing designed as usual. Thus, it requires no additional design effort for the implementation of the invention with respect to the housing.

In addition, such a trained connector does not require more space than conventional plug.

In particular, the housing of the plug substantially corresponds to a standardized connector housing, whereby preferably the aforementioned advantages unfold in a particularly favorable manner.

It is particularly advantageous if the housing comprises an insertion opening for a cable. Thus, the cable is inserted in an assembly of the plug with the cable in a particularly simple manner in the interior of the housing.

In an assembled state of the plug with the cable in particular, the cable passes through the insertion opening.

Furthermore, the invention relates to a cable for the conduction of three-phase current, wherein substantially the same problem, as mentioned above, this is based.

For example, the cable is an extension cable for the line of three-phase current, in particular at one end of the extension cable, a plug and at the other end a socket, in particular a coupling socket, are arranged.

In other embodiments, the cable is provided for connection to an electrically driven machine, in particular at one end of this cable, a plug is arranged and the other end of this cable is provided for connection to an electrical machine or connected to such a machine ,

In this aspect of the invention, the problem is solved according to the invention by a cable designed as explained above in that this cable comprises a plug with at least one, preferably several, of the features explained above. In this case, the above-mentioned advantage or the above-mentioned advantages with respect to this feature is also transferred to the cable according to the invention.

Another aspect of the invention relates to an electrically driven, in particular by means of three-phase, driven machine, which comprises a plug and / or a cable with a plug. This aspect of the invention is analogous to the problem mentioned in the introduction.

According to the invention, this aspect of the invention is achieved in that, in the above-described working machine, the plug and / or the cable with the plug comprises at least one, preferably a plurality, of the features explained above. In the process, the advantage mentioned in connection with the characteristics is transferred or the advantages also on the working machine according to the invention.

• 1: eine perspektivische Darstellung eines Steckers in einem mit einem Kabel zusammengebauten Zustand;
• 2: eine perspektivische Darstellung des Steckers, welche im Wesentlichen der 1 entspricht, wobei jedoch ein Gehäuse des Steckers größtenteils nicht dargestellt ist, so dass in einem Innenraum des Gehäuses angeordnete Bauteile sichtbar sind;
• 3: eine Frontalansicht auf eine Verbindungsseite des Steckers;
• 4: eine im Wesentlichen der 2 entsprechende perspektivische Darstellung, wobei jedoch von fünf Leitungen, welche im Wesentlichen gleich ausgebildet sind, für eine übersichtlichere Darstellung nur eine dargestellt ist;
• 5: eine Schnittansicht der in 4 dargestellten Bauteile;
• 6: eine perspektivische Darstellung eines Adapterelementes;
• 7: eine Schnittdarstellung des Adapterelementes ; und
• 8: eine perspektivische Darstellung eines Adapterelementes mit einer angeordneten Litze gemäß eines weiteren Ausführungsbeispiels.

The invention with further preferred features and advantages will be explained in more detail below in connection with the drawing. Show it:

• 1 a perspective view of a plug in a state assembled with a cable;
• 2 : A perspective view of the plug, which is essentially the 1 corresponds, but a housing of the plug is for the most part not shown, so that arranged in an interior of the housing components are visible;
• 3 a frontal view on a connection side of the plug;
• 4 : one essentially the 2 corresponding perspective view, but of five lines, which are formed substantially the same, only one is shown for a clearer illustration;
• 5 : a sectional view of the in 4 illustrated components;
• 6 a perspective view of an adapter element;
• 7 a sectional view of the adapter element; and
• 8th : A perspective view of an adapter element with an arranged strand according to a further embodiment.

One in the 1 to 7 exemplified embodiment of a generally designated 100 plug is with a cable 110 connected.

The plug 100 is a plug for a three-phase plug connection between the plug 100 and a drawing, not shown in the drawing, wherein the socket provides three-phase current. When the plug 100 connected to the socket, the three-phase current is over the plug 100 to the cable 110 forwarded and is then, for example, an electrically operated, also not graphically illustrated, work machine available.

Here is the cable 110 For example, directly connected to the machine. In other embodiments, the cable is 110 an extension cable, which in turn has a socket, in particular a coupling socket, to which the working machine with a plug and another cable can be connected.

The cable 110 includes, as in 2 shown, five conductors 112A . 112B , 112C, 112D, 112E, where three of the conductors 112 for the transmission of each of the three phases of the three-phase current are provided and two conductors 112 are provided as a neutral and as a protective conductor.

Above and below components with at least the fundamentally identical function are provided with the same reference numerals and only to the extent a detail which distinguishes one of these essentially identical components from the others is described, or for other reasons exactly one of these substantially identical components will be designated is intended, a letter characterizing this particular component letter is appended as a suffix.

The plug 100 comprises a substantially trained as usual housing 116 with an interior. In this case, the housing includes 116 an opening into the interior opening for the cable 110 , In an assembled state, as in the 1 and 2 shown, the cable runs 110 through the insertion opening into the interior and one of the ladder 112 is with one electrical line 122 of the plug 100 electrically connected.

In this embodiment, the plug comprises 100 five lines 122 , which each have a contact pin 124 include, where three lines 122 are provided for the transmission of the three phases of the three-phase current and one line each 122 are provided as a neutral and as a protective conductor.

When plugging in the plug 100 into the socket each of the contact pins engages 124 in an appropriate socket of the socket and so is the electrically conductive three-phase plug from the socket via the plug 100 to the cable 110 produced.

Furthermore, the plug includes 100 a control system, generally designated 132, configured to detect a direction of rotation of the three-phase current provided by the receptacle, and a phase-reversal device, indicated as a whole by 134, with which the arrangement of the three contact pins 124A . 124B . 124C the lines 122 , which transmit the different phases of the three-phase current, is adjustable relative to each other and so this arrangement is adaptable to the direction of rotation of the provided three-phase current.

Here are the control system 132 , the phase inverter device 134 as well as the lines 122 essentially in the housing 116 arranged. The contact pins 124 protrude with a respective contact end 144 on a connection side 146 of plug 100 out of the case 116 out, so that the respective contact ends 144 can intervene in the appropriate sockets of the socket. These are the contact pins 124 arranged on the connection side 146 in the usual way.

The phase inverter device 134 includes a rotating element 152 , which is on the connection side 146 rotatable with the housing 116 is connected, as exemplified in 2 and 3 shown.

On the rotary element 152 are two pins 124 For example, the contact pins 124B and 124C , of two corresponding lines 122 , which transmit phases of the three-phase current, arranged. By means of the rotary member 152, the positions of the contact pins 124B and 124C be reversed. Through this reversal of the positions of the contact pins 124 are the wires 122 adaptable to a direction of rotation of the three-phase current provided by the socket.

For example, the rotary element comprises 152 an engagement groove 154 , in which from outside the plug 100 For example, can be intervened with a screwdriver and then with the screwdriver, the rotary member 152 can be twisted.

The control system 132 includes an electronic circuit 162 which in particular on an electronics board 164 is arranged for detecting the direction of rotation of the lines 122 adjacent three-phase current, which at a closed connection of the plug 100 with the socket corresponds to the direction of rotation of the three-phase current provided by the socket.

This is the electronic circuit 162 each with a strand 166A . 166B , 166C, in particular with a respective end 168 the strand 166 , with each a live broadcasting lead 122 electrically connected.

Preferably, this is a strain relief device 172 provided, which at a central portion 174 the strand 166 attacks, as exemplified in the 4 and 5 shown.

The middle section 174 is between that with the line 122 connected end 168 and another end 176 the strand 166 at which this with the electronic circuit 162 is connected, arranged. The strain relief device 172 takes when at the end 168 pulled, at least a part of the tensile force, and thus relieves the other end 176 and thus the connection of the strand 166 with the electronic circuit 162 ,

In this embodiment, the strain relief device comprises 172 a penetration opening 178 the electronics board 164 through which the middle section 174 round picks. This rubs the middle section 174 at one edge of the passage opening 178 , bringing them to the middle section 174 attacks and the friction part of the tensile force is absorbed.

For example, the strand is 166 between the middle section 174 and the end 176 bent, in particular bent under bias. As a result, the friction at the edge of the passage opening 178 preferably increased, thereby improving the strain relief.

The electronics board 164 is in particular to the housing 116 attached. In this case, preferably recesses 182 on the electronics board 164 provided by which the electronic board 164 the interior of the housing 116 is designed accordingly. This allows the electronics board 164 the small space in the housing 116 exploit effectively and be incorporated into this.

For example, the electronics board 164 with a part of the housing 116 bonded. In this case, preferably, the electronic panel 164 openings 184 on. These openings 184 preferably improve the bonding, as these openings 184 For example, take too much applied adhesive.

In a variant of the embodiment it is provided that the electronic board 164 alternatively or in addition to the housing 116 is screwed.

The control system 132 further comprises a signal generator 192 , which with the electronic circuit 162 is connected and is designed to signal at least one detected direction of rotation.

For example, the signal generator 192 designed as an optical signal generator and comprises a light-emitting device 194 For example, a diode. In particular, the diode lights up when detected by the electronic circuit 162 as an incorrectly preset direction of rotation, ie in particular a left-handed direction of rotation is detected, and otherwise the diode is turned off.

In variants of the exemplary embodiment, the light-emitting device emits light with different wavelengths as a function of the detected direction of rotation.

At the in 1 illustrated embodiment, the housing 116 includes a signal port 196 in a housing wall 198 , In this case, the light-emitting device 194 around signal opening 196 in the interior of the housing 116 arranged and the light shines through the signal opening 196 outwards.

For example, in the signal opening 196 one for the light of the light-emitting device 194 essentially transparent cover, in particular a lens used.

In a variant of the embodiment, the housing wall 198 also in the field of light-emitting device 194 formed closed and the light of the light-emitting device 194 shines through the housing wall 198 therethrough.

For example, the plug includes 100 a holding device 202 for a flap of the socket. In particular, this holding device 202 has a groove, in which engages a nose of the closure flap in a closed connector. Thus, the flap of the holding device 202 held in a closed connector.

The holding device 202 is on an outside of the housing 116 arranged. Preferably, the signal generator 192 , in particular the light-emitting device 194 , in view of the holding device 202 arranged.

Variants of the exemplary embodiment include an acoustic signal transmitter 192 and / or a signal generator 192 , which is designed for data transmission.

The administration 122 includes a connection recording 212 for the corresponding leader 112 for connection to the same and a connection receptacle 214 for the corresponding strand 166 at which the electronic circuit 162 over the strand 166 to the line 122 connected. In particular, the connection recording 212 and the connection recording 214 in different places of the line 122 arranged.

In this embodiment, it is provided that the line 122 one with the contact pin 124 connected adapter element 222 which is electrically conductive comprises. In particular, the connection recording 212 from the adapter element 222 educated.

The adapter element 222 is there as one of the contact pin 124 formed separate component and as such separately exemplified in the 6 and 7 shown.

At one end, the adapter element 222 a pin 224 which is in an engagement opening 226 of the contact pin 124 engages as in 5 exemplified. Here is the engagement opening 226 especially at one end of the contact 144 essentially opposite terminal end 228 arranged the contact pin. The connection end 228 of the contact pin 124 is in the interior of the housing 116 arranged.

About the cone 224 is the adapter element 222 firm and against rotation, in particular by means of a fixing element 232 with the contact pin 124 connected.

The pin 224 has a fixing surface 234 on which the fixing element 232 the pin 224 acted upon and the adapter element 222 fixed. The contact pin 124 preferably has a securing hole 236 on, through which the fixing element 232 , For example, a screw, passes through for fixing.

It is preferably provided that the pin 224 to a pin axis 238 is rotationally symmetrical, wherein the pin 224 substantially along an axial direction of the journal axis 238 in the intervention opening 226 reaching in. Due to the rotational asymmetric design of the pin 224 is a rotation of the same about the pin axis 238 relative to the contact pin 124 avoided. For example, the pin 224 formed semi-cylindrical, wherein the substantially planar fixing surface 234 one side of the same forms and the other side is formed bent.

Furthermore, it is preferably provided that a stop surface 242 on the adapter element 222 partly around the pin 224 runs around. The pin 224 extends in to the pin axis 238 in the axial direction beyond the abutment surface 242 addition. In this case, the stop surface lies in a connected state 242 at the contact pin 124 at.

The connection recording 212 is at one of the tenons 224 opposite end of the adapter element 222 arranged and includes a connection opening 244 into which the ladder 112 is receivable. In the assembled state is the conductor 112 with one end in the connection opening 244 and is made by a fastener 246 , For example, a screw, fixed therein. For this purpose, preferably the fastening element engages 246 through a mounting hole 248 the adapter element 222, which in the connection opening 244 flows and acts on the leader 112 ,

The connection recording 214 includes a connection opening 252 , in which the strand 166 with her end 168 lies and, preferably by means of a fastener 254 , is attached. The fastener 254 such as a screw, preferably engages through a mounting hole 256 the connection recording 214 and acts on the wire 166 ,

In this embodiment, the connection receptacle 214 , such as in 5 represented by a contact pin 124 and the adapter element 222 trained together. In particular, the engagement opening forms 226 the connection opening 252 , Furthermore, the fixing element 232 and the securing hole 236 also the fastener 254 or the mounting hole 256 ,

In particular, the connection receptacle 214 a support surface 262 on, on which the strand 166 with her end 168 rests and there with the connection receptacle 214 connected is. In particular, the strand is 166 between the support surface 262 and the fastener 254 trapped.

In this embodiment, the adapter piece 222 the support surface 262, which is substantially the fixing surface 234 equivalent.

Preferably, the support surface extends 262 partially starting from the pin 224, in particular substantially to the pin axis 238 axial direction, in the adapter element 222 into it, with the adapter element 222 in this area a recess 264 having.

The stop surface 242 is in the area of the recess 264 interrupted and the bearing surface 262 extends in to the journal axis 238 axial direction on both sides of the stop surface 242 ,

Thus forms the recess 264 when the pin 224 in the intervention opening 226 engages and the adapter element 222 with the stop surface 242 at the contact pin 124 is present, a passage through which the strand 166 from the connection opening 252 passing through and then on to the electronic circuit 162 runs.

In a further embodiment, which is exemplified in 8th is partially shown, those elements which have at least the same basic function as one of the elements in the above-described embodiment, provided with the same reference numerals and with respect to the description thereof, reference is made in full to the above explanations, unless otherwise specified become. If a variant of an element is explained with at least the fundamentally the same function as an element of the above-described embodiment, the corresponding reference character of the element a letter characterizing the variant is added as a suffix.

In this embodiment, a strand is 166 to a part of the corresponding line 122 soldered.

In a modification of the embodiment, the strand is 166 to a part of the pipe 122 welded.

In particular, the strand is 166 to an adapter element 122A soldered or welded.

In particular, it is provided that the strand on an outer side of the adapter element 222A soldered or welded. It is preferably provided that the stranded wire 166 at a location of the adapter element 222A is soldered or welded, at which this has a sufficiently thick wall thickness. Thus, for example, the stranded wire 166 not opposite the mounting hole 248 and preferably away from the connection opening 244 of the adapter element 222A soldered or welded to this.

In particular, the adapter element 222A in this embodiment, no connection recording.

Incidentally, all other parts in this embodiment are at least substantially formed as in the above-described embodiment, so that with respect to the description of the same can be made in full content to the comments on the above embodiment.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited non-patent literature

• Standard DIN 60309 [0002]

Claims (28)

Plug (100) for a three-phase plug connection between the plug (100) and a socket, the plug (100) comprising a phase-reversing device (134), characterized in that the plug (100) has a control system (132) with an electronic circuit (162) and a signal generator (192), the electronic circuit (162) being designed to detect a direction of rotation of the three-phase current provided by the socket when the plug (100) is connected to the socket, and the signal generator (192) is designed such that to signal at least one detected direction of rotation. Plug (100) to Claim 1 characterized in that the plug (100) comprises for each phase of the three-phase current in each case a line (122) comprising a contact pin (124) and in particular each of the lines (122) has a connection receptacle (212) for a conductor (112) of a cable ( 110). Plug (100) to Claim 2 , characterized in that at least one line (122) comprises an adapter element (222) and wherein in particular the adapter element (222) comprises the connection receptacle (212). Plug (100) to Claim 3 , characterized in that the adapter element (222) is designed to be electrically conductive. Plug (100) to Claim 3 or 4 , characterized in that the adapter element (222) engages with a pin (224) in an engagement opening (226) of the contact pin (124) of the corresponding line (122) and wherein in particular a stop surface (242) on the adapter element (222) at least partially around the pin (224) runs around. Plug (100) according to one of Claims 3 to 5 , characterized in that the adapter element (222) has a Verdrehschutz, wherein in particular the pin (224) is rotationally asymmetrical. Plug (100) to Claim 5 or 6 Characterized in that the pin (224) comprises a fixing surface (234) on which, for example, with a fixing member (232), the adapter element (222), in particular a rotationally fixed manner, with the corresponding contact pin (124) is fixed. Plug (100) according to one of Claims 2 to 7 , characterized in that in each case one stranded wire (166) connects the electronic circuit (162) to one of the leads (122) and wherein in particular at least one stranded wire (166) is connected to the corresponding lead (122) at a location other than the location at which the conductor (112) is connectable to the line. Plug (100) to Claim 8 , characterized in that at least one line (122) has a connection receptacle (214) for the corresponding stranded wire (166) and thus in particular the electronic circuit (162) via the stranded wire (166) and the connection receptacle (214) to the line (122). connected. Plug (100) to Claim 9 , characterized in that the corresponding adapter element (222) at least partially forms the connection receptacle (214). Plug (100) to Claim 9 or 10 , characterized in that the corresponding contact pin (124) at least partially forms the terminal receptacle (214). Plug (100) according to one of Claims 9 to 11 , characterized in that the corresponding adapter element (222) and the corresponding contact pin (124) of the line (122) form their terminal receptacle (214), wherein in particular the pin (224) and the engagement opening (226) form the terminal receptacle (214). Plug (100) according to one of Claims 9 to 12 , characterized in that the connection receptacle (214) comprises a support surface (262) for the received stranded wire (166), wherein in particular the support surface (262) on the adapter element (222) is arranged. Plug (100) to Claim 13 , characterized in that the bearing surface (262) and the fixing surface (234) are formed substantially by a same surface of the adapter element (222). Plug (100) according to one of the preceding claims, characterized in that the electronic circuit (162) in a housing (116) of the plug (100) is arranged. Plug (100) according to one of the preceding claims, characterized in that the electronic circuit (162) is arranged on an electronics plate (164), in particular a circuit board, and wherein in particular the electronics plate (164) screwed to the housing (116) and / or glued on. Plug (100) according to one of the preceding claims, characterized in that the Plug (100) for at least one strand (166) comprises a strain relief device. Plug (100) to Claim 16 or 17 , characterized in that the electronic board (164) has at least one passage opening (178) through which at least one of the strands (166) passes. Plug (100) according to one of the preceding claims, characterized in that the signal transmitter (192) for the signal output comprises a light-emitting device (194). Plug (100) to Claim 19 , characterized in that the light-emitting device (194) in an interior of the housing (116) of the plug (100) is arranged and in particular a housing wall (198) of the housing (116) in a region of the light-emitting device (194) closed over this runs. Plug (100) to Claim 19 , characterized in that the housing (116) for the light emitted by the light emitting device (194) comprises a signal aperture (196). Connector (100) according to any one of the preceding claims, characterized in that the signal generator (192) is constructed to emit acoustic signals. Plug (100) according to one of the preceding claims, characterized in that the signal transmitter (192) comprises an interface for a data transmission, in particular for a wireless data transmission. Plug (100) according to one of the preceding claims, characterized in that the signal transmitter (192) is arranged on one side of the plug (100) on which a holding device (202) for a closure flap of the socket is arranged. Plug (100) according to one of the preceding claims, characterized in that the housing (116) of the plug (100) substantially corresponds to a standardized connector housing. Connector (100) according to any one of the preceding claims, characterized in that the housing (116) an insertion opening for a cable comprising (110). Cable (110) for the conduction of three-phase current, characterized by a plug (100) according to one of the preceding claims. Electrically powered work machine comprising a plug (100) and / or a cable (110) with a plug (100), characterized in that the plug (100) is designed according to one of the preceding claims.

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