DE102017012004A1 - Distributor device and system with distributor device - Google Patents

Abstract

Distributor device and system with distributor device, comprising a circuit board connected to a line conductor and a housing, wherein the circuit board has concentrically arranged, circular conductor tracks

Description

The invention relates to a distributor device and system with distributor device.

It is well known that a vehicle can be supplied inductively from a primary winding arranged stationarily on the ground.

The invention is therefore based on the object to make a system with inductively powered vehicles easy and inexpensive to produce.

According to the invention the object is achieved in the distribution device according to the claim 1 and in the system with distribution device according to the features specified in claim 11.

Important features of the invention in the distribution apparatus are that it has a circuit board connected to a line conductor and a housing,
wherein the circuit board has concentrically arranged, circular conductor tracks.

The advantage here is that the line conductor with a medium-frequency current, in particular with a frequency between 10 and 1000 kHz, can be acted upon and thus a primary coil is supplied, so that a vehicle with a arranged on its underside secondary winding is inductively supplied with electrical energy, when it has approached such a position in which a sufficiently strong inductive coupling between the secondary winding and primary coil is effected. The line conductor is laid as an elongated conductor loop. In this case, the line conductor on a forward conductor and a return conductor, in particular which are laid parallel.

In an advantageous embodiment, the housing has a junction box, in particular a cup-shaped junction box, and a connection cover mounted thereon, wherein the connection cover has openings through which in each case a respective spring contact of a primary coil can be performed, which can be pressed against a respective one of the conductor tracks. The advantage here is that a simple production of the distributor device is executable.

In an advantageous embodiment, the circuit board is pressed by means of a screw to a heat sink,
in particular by means of a screw head between the screw and printed circuit board arranged washer. The advantage here is that a good conductive heat sink is pressed against the circuit board, so that the heat of heat-generating components can be discharged to the soil material.

In an advantageous embodiment of the heat sink is made in two parts. The advantage here is that a simple assembly executable. In addition, the length of the heat sink is adaptable to the depth of the core bore. For this purpose, the two parts of the heat sink are arranged displaceable relative to each other, but always touch to dissipate the heat flow. By the two mutually relatively linearly displaceable, but mutually contacting parts, the total length of the heat sink to the distance between the bottom of the core hole and circuit board is customizable.

In an advantageous embodiment, the heat sink is arranged on the side facing away from the screw head of the screw and / or from the washer side of the circuit board. The advantage here is that the circuit board is pressed on its underside of the heat sink and at its top of the washer, so that the heat is dissipated on both sides. However, the substantial portion of the heat flow flowing to the washer is directed by the screw through the circuit board to the heat sink.

In an advantageous embodiment, the heat sink, in particular a part of the heat sink, a threaded hole,
where the screw is screwed into the threaded hole. The advantage here is that the screw can be screwed in a simple manner.

In an advantageous embodiment, a signal electronics is equipped on the circuit board, which has a sensor for detecting an inductance, in particular for detecting the primary coil. The advantage here is that it can be seen whether the primary coil, in particular the ferrite layer of the primary coil, is in the sensitive region of the sensor or not. Thus, when the primary coil is plugged in, the energization of the line conductor can be interrupted so that risks are minimized. After inserting the primary coil into the housing part of the distributor device, the energization of the line conductor can thus be continued.

In an advantageous embodiment, the junction box is arranged in a core bore introduced into a floor,
wherein the heat sink touches the material of the soil, in particular for heat dissipation. The advantage here is that a simple assembly is executable.

In an advantageous embodiment, the openings each cover the same radial distance range to the screw axis,
wherein the radial distance ranges covered by the conductor tracks are covered by the radial distance range covered by the respective opening. The advantage here is that a plurality of spring contacts are operable in parallel, so the same conductor can be contacted with multiple spring contacts, so that the power transmission takes place in parallel.

In an advantageous embodiment, the conductor tracks are aligned concentrically to the screw axis. The advantage here is that the conductor tracks of the primary coil can also be arranged concentrically to the screw axis as the tracks of the arranged in the junction box PCB. Thus, a central connector is executable.

In an advantageous embodiment, the openings are equally spaced in the circumferential direction. The advantage here is that a simple plugging is possible.

In an advantageous embodiment, the bottom of the junction box on a recess through which the heat sink, in particular the lower part of the heat sink is performed, wherein the heat sink, in particular the lower part of the heat sink, is widened below the junction box, in particular so further radially expanded is as the recess. The advantage here is that the heat is dissipated to the soil material.

Important features of the system with distributor device are that a primary coil is plug-connected to the distributor device, in particular the primary coil is inserted into the distributor device,
wherein the primary coil has a primary winding which is electrically connected to concentrically arranged, circular conductor tracks,
wherein in each case a first end of a respective spring contact is connected to a respective conductor track, in particular is solder-connected,
wherein another end of the respective spring contact is pressed onto a conductor track of the printed circuit board of the distributor device.

The advantage here is that the bottom of a system is available as a moving surface for vehicles that perform intralogistic transports, and within the plant several distribution devices are providable at different locations.

Thus, a respective primary coil can be arranged on each distributor device as needed, in particular plug-in connection with the respective junction box. In this way, an inductive loading of the respective vehicle when starting the respective distributor device and stay there is possible.

The primary coil which is plugged onto the distributor device likewise has, like the printed circuit board of the distributor device, concentrically arranged, circular printed circuit traces. Thus spring contacts are soldered there, which are pressed when plugged into the conductor tracks of the circuit board of the distribution device.

The spring contacts are very simple executable, in particular of bent wire, wherein a first wire portion is aligned tangentially to a conductor of the primary coil and is soldered to this conductor and wherein the spring contact is pressed with a second wire section to one of the tracks of the circuit board of the distributor and wherein the wire between the first and second wire section has a bead, that is not designed to be rectilinear, so that is resiliently biased when pressing the spring contact.

The spring contact projects in each case into the interior area surrounded by a sleeve-like elevation and is thus protected against influences from the environment.

In an advantageous embodiment, the circuit board of the primary coil is kept pressed against a metallic executed housing part of the primary coil, in particular of a second screw which is screwed into a threaded bore of the housing part,

in particular, wherein a washer is pressed by the screw head of the second screw against the circuit board. The advantage here is that the heat generated by mounted on the circuit board of the primary coil components heat dissipated to the housing part and thus improved heat dissipation is achievable.

In an advantageous embodiment, the spring contacts are arranged in the circumferential direction about the screw axis of the second screw in areas which each cover the same radial distance range about the screw axis of the second screw and / or are arranged evenly spaced in the circumferential direction about the screw axis of the second screw. The advantage here is that a symmetrical arrangement and thus easy production is executable.

In an advantageous embodiment, the screws are arranged coaxially aligned with each other. The advantage here is that a simple production is possible.

In an advantageous embodiment, the primary coil has a flat ferrite layer, which on the distributor device and / or the Bottom facing side of the primary winding is arranged. The advantage here is that the primary winding on the flat ferrite layer, which acts as a magnetic yoke, can be placed and thus an inexpensive easy to produce arrangement is executable.

In an advantageous embodiment, the primary coil has a further housing part, which covers the printed circuit board to the bottom, in particular to the connection cover, wherein the further housing part has sleeve-like elevations, in particular which point towards the ground highlight from the rest of the housing part),
wherein a respective sleeve-like elevation is inserted in each case in a respective one of the openings of the connection cover. The advantage here is that a protected connector is feasible.

In an advantageous embodiment of the line conductor is received in a receiving part,
wherein the receiving part has barbs acting extensions on its outer wall. The advantage here is that an irreversible arrangement of the receiving part is executable.

Further advantages emerge from the subclaims. The invention is not limited to the combination of features of the claims. For the skilled person, further meaningful combination options of claims and / or individual claim features and / or features of the description and / or figures, in particular from the task and / or by posing the task by comparison with the prior art task.

• In der 1 ist eine Schrägansicht eines Bereichs des Bodens gezeigt, wobei ein schlitz 2 durch eine Kernbohrung 1 geführt ist.
• In der 2 ist im Schlitz 2 ein Aufnahmeteil 21 für Linienleiter (160, 161) angeordnet und in der Kernbohrung 1 eine Anschlussdose 20.
• In der 3 ist zusätzlich eine runde Leiterplatte 30 in die Kernbohrung 1 eingesetzt, wobei die Linienleiter (160, 161) mit Leiterbahnen der Leiterplatte 30 elektrisch verbunden sind.
• In der 4 ist ein Verschlussdeckel 40 auf die Anschlussdose 20 aufgesetzt.
• In der 5 ist statt des Verschlussdeckels 40 ein Anschlussdeckel 50 auf die Anschlussdose 20 aufgesetzt und eine Primärspule vor dem Aufstecken gezeigt.
• In der 6 ist eine Primärspule mit Gehäuseteil 51 steckverbunden mit der Anschlussdose 50.
• In der 7 ist die Unterseite der Primärspule mit Gehäuseteil 51 in Schrägansicht dargestellt.
• In der 8 ist die Primärspule mit Gehäuseteil 51 explodiert dargestellt.
• In der 9 ist die Anschlussdose 20 und der zugehörige Anschlussdeckel 50 sowie die davon umfassten Komponenten explodiert dargestellt.
• In der 10 ist die Leiterplatte 30 mit den elektrisch verbundenen Linienleiter (160, 161) in Schrägansicht gezeigt.
• In der 11 ist die mit den Komponenten befüllte Anschlussdose 20 in Schrägansicht von unten gezeigt.
• In der 12 ist eine zugehörige Draufsicht gezeigt.
• In der 13 ist eine zugehörige Schnittansicht gezeigt.
• In der 14 ist der statt des Anschlussdeckels 50 auf die Anschlussdose 20 aufgesetzte Verschlussdeckel 40 gezeigt.
• In der 15 ist eine zur 13 zugehörige Schrägansicht gezeigt.
• In der 16 ist ein Querschnitt durch das ins Bodenmaterial 164 eingebrachte Aufnahmeteil 21 gezeigt.
• In der 17 ist ein Ausschnitt aus 16 vergrößert dargestellt.

The invention will now be explained in more detail with reference to figures:

• In the 1 is an oblique view of a portion of the bottom is shown, wherein a slot 2 is guided through a core hole 1.
• In the 2 is a receiving part 21 for line conductors (160, 161) arranged in the slot 2 and in the core bore 1, a junction box 20th
• In the 3 In addition, a round circuit board 30 is inserted into the core hole 1, wherein the line conductors (160, 161) are electrically connected to conductor tracks of the printed circuit board 30.
• In the 4 a cap 40 is placed on the junction box 20.
• In the 5 Instead of the closure cap 40, a connection cover 50 is placed on the junction box 20 and a primary coil shown before plugging.
• In the 6 is a primary coil with housing 51 plug-connected to the junction box 50th
• In the 7 the underside of the primary coil with housing part 51 is shown in an oblique view.
• In the 8th the primary coil is exploded with housing part 51 exploded.
• In the 9 is the junction box 20 and the associated connection cover 50 and the components included exploded shown.
• In the 10 the printed circuit board 30 is shown with the electrically connected line conductors (160, 161) in an oblique view.
• In the 11 is the filled with the components junction box 20 shown in an oblique view from below.
• In the 12 an associated plan view is shown.
• In the 13 an associated sectional view is shown.
• In the 14 is shown instead of the terminal cover 50 on the junction box 20 patch cap 40.
• In the 15 is one to 13 associated oblique view shown.
• In the 16 is a cross section through the introduced into the soil material 164 receiving part 21 is shown.
• In the 17 is a section of 16 shown enlarged.

As shown in the figures, the system according to the invention for the contactless transmission of electrical energy to a vehicle movable on a ground has loading areas which consist of a line conductor (FIG. 160 . 161 ) are supplied.

The loading areas are arranged on the ground and can be supplied serially by the line conductor, for example.

The vehicle preferably has on its underside on a secondary winding which is inductively coupled to a respective arranged at the bottom of the primary coil with housing part 51, said respective primary coil with housing part 51 is arranged above a respective loading area and from the vehicle, a corresponding position can be approached, so that the inductive coupling is sufficiently strong for the transmission of electrical energy.

In this way, an energy storage of the vehicle is chargeable, from which the drive of the vehicle is supplied.

As in 1 is shown, to produce the respective loading area in the ground a core hole 1 introduced, through which a slot 2 passed through.

As in 2 shown, the respective charging area is electrically powered by a line conductor, which in a receiving part 21 is introduced, which is made elongated, preferably made of plastic and in which a line conductor as a lead 160 and a return conductor 161 recorded as well as signal lines 162 that are twisted together around a center core 163 around. The signal lines 162 are spaced from the Hinleiter and to the Hinleiter 160 parallel return line 161 ,

As in 16 and 17 shown has the receiving part 21 on its side surfaces protruding barbs. The barbs are executed by respective projecting raised to the ground surface elevations.

The line conductor is powered by a medium frequency power source that has a frequency between 10 and 1000 kHz.

The line conductor is designed as an elongated laid current loop, the forward conductor 160 the line conductor the forwarding and the return conductor 161 the line conductor carries out the recycling of the current.

As in 2 shown is the junction box 20 plastered into the core hole and leveled to the ground surface, so aligned to the ground surface.

As in 3 shown, then the circuit board 30 in the junction box 20 introduced and the leader 160 as well as the return conductor 161 electrically connected.

As in 4 shown is the junction box 20 lockable with the closure lid 40 or alternatively, as in 5 shown with the connection cover 50 ,

As in 5 shown, the connection cover points 50 Openings for passing through plug contacts of a primary coil with housing part 51 ,

As in 6 shown, this primary coil is located with housing part 51 after the connection to the connection cover 50 at. Thus, the primary coil rises with housing part 51 only slightly above the soil surface. Thus, the primary coil with housing part 51 can be driven over by vehicles.

The primary coil with housing part 51 is designed accordingly flat.

As in 7 and 8th shown, the primary coil has a housing part 51 on, on whose inside a circumferential recess is arranged, in which a coil winding, so the primary winding 81 , is inserted.

The primary winding 81 lies on a flat ferrite layer, wherein the flat ferrite layer of individual ferrite plates 70 is composed.

A circuit board 80 is centric to the primary winding 81 arranged and also in a recess of the housing part 51 recorded and centered.

On the housing part 51 opposite side of the circuit board 80 are annular, concentrically arranged tracks arranged on which spring contacts 72 are equipped, in particular so are electrically connected and soldered.

The spring contacts 72 are each arranged at one of three radial distances. The spring contacts 72 are regularly spaced from each other in the circumferential direction

Another housing part 71 covers the circuit board 80 towards the bottom, especially to the connection cover 50 out, off.

In addition, the other housing part has 71 sleeve-like elevations, which are directed towards the ground highlight from the rest of the housing part 71 ,

The sleeve-like elevations surround respective spring contacts 72 ,

As in 9 is shown inside the junction box 20 the circuit board 30 by means of a metallic washer 31 pressed down on a heat sink 33 , which at a placed within the core hole on the soil heat sink 34 is pressed.

This is the heat sink 33 at the bottom of the circuit board 30 flat on, leaving from on the circuit board 30 equipped components generated heat to the heat sink 33 is deductible. From this heat sink 33 Heat is then transferred to the heat sink resting on the floor 34 ,

Here is a screw in a threaded hole of the heat sink 34 screwed. The screw head thus presses the washer 31 to the top of the circuit board 30 which thus on the at the bottom of the circuit board 30 adjacent heat sink 33 is pressed, in turn, on the heat sink 34 is pressed.

At the top of the circuit board 30 are concentrically arranged circular disc-shaped conductor tracks 32 arranged, which are electrically contacted by the spring contacts 72 the primary coil.

The connection cover 50 has openings through which the sleeve-like elevations of the further housing part 71 are feasible.

Part of the heat generated by the components is also dissipated by the washer 31 taken up and removed, especially on the in the heat sink 34 screwed in screw.

Like in the 11 Shown, the heat sink closes 34 one at the bottom of the junction box 20 arranged opening from.

As in 12 and 15 shown are the tracks 32 under the openings of the connection cover 50 arranged so that the spring contacts are pressed after passing through the openings to the conductor tracks.

The openings are circumferentially spaced from one another regularly. In addition, each opening covers the same radial clearance area.

13 shows a cross section through the Beriech the junction box 20 , where it is clear that the washer 31 to the circuit board 30 pressing screw through a recess of the washer 31 is guided and through the circuit board 30 and the heat sink 33 is guided.

In 14 is the connection cover 50 alternatively with the junction box 20 connectable closure lid 40 shown.

In this case, the closure lid 40 a regular grid of recesses so that liquids can pass through. Also the closure lid 40 is overridden by a vehicle and executed accordingly stable.

LIST OF REFERENCE NUMBERS

1

core drilling

2

slot

20

junction box

21

Receiving part for line conductors

30

Printed circuit board, in particular populated printed circuit board with monitoring sensors

31

washer

32

Conductor tracks, in particular concentric conductor tracks

33

heatsink

34

heatsink

40

cap

50

connection cover

51

Primary coil comprising primary winding 81

70

ferrite Cores

71

housing part

72

spring contact

80

circuit board

81

primary

160

Line conductor, especially forward conductor

161

Line conductor, in particular return conductor

162

signal line

163

Center core for twisted signal lines 162

164

Flooring

Claims (15)

Distribution device comprising a circuit board connected to a line conductor and a housing, characterized in that the circuit board has concentrically arranged, circular conductor tracks Distributor device according to Claim 1 , characterized in that the housing has a junction box, in particular a cup-shaped junction box, and a connection cover mounted thereon, wherein the terminal cover has openings through which a respective spring contact of a primary coil can be performed, which can be pressed against a respective one of the conductor tracks. Distributor device according to at least one of the preceding claims, characterized in that the printed circuit board is pressed by means of a screw to a heat sink, in particular by means of a screw head between the screw and the printed circuit board arranged washer. Distributor device according to at least one of the preceding claims, characterized in that the heat sink is made in two parts and / or that the heat sink is disposed on the side remote from the screw head of the screw and / or from the washer side of the circuit board. Distributor device according to at least one of the preceding claims, characterized in that the heat sink, in particular a part of the heat sink, has a threaded bore, wherein the screw is screwed into the threaded bore. Distributor device according to at least one of the preceding claims, characterized in that on the circuit board signal electronics is equipped, which has a sensor for detecting an inductance, in particular for detecting the primary coil. Distributor device according to at least one of the preceding claims, characterized in that the junction box is arranged in a core bore introduced into a bottom, wherein the cooling body touches the material of the soil, in particular for heat dissipation. Distributor device according to at least one of the preceding claims, characterized in that the openings each cover the same radial distance range to the screw axis, wherein the covered by the conductor tracks radial distance ranges are covered by the covered by the respective opening radial distance range. Distributor device according to at least one of the preceding claims, characterized in that the conductor tracks are aligned concentrically to the screw axis, and / or that the openings are equally spaced in the circumferential direction Distributor device according to at least one of the preceding claims, characterized in that the bottom of the junction box has a recess through which the heat sink, in particular the lower part of the heat sink is performed, wherein the heat sink, in particular the lower part of the heat sink, widened below the junction box is, in particular so is radially further expanded than the recess. Plant with distributor device, in particular according to at least one of the preceding claims, wherein a primary coil is plug-connected to the distributor device, in particular the primary coil is inserted into the distributor device, characterized in that the primary coil has a primary winding which is electrically connected to concentrically arranged, circular conductor tracks is, wherein in each case a first end of a respective spring contact is connected to a respective conductor, in particular solder-connected, wherein another end of the respective spring contact is pressed onto a conductor track of the circuit board of the distributor device. Plant after Claim 11 , characterized in that the circuit board of the primary coil is held pressed against a metallic executed housing part of the primary coil, in particular of a second screw which is screwed into a threaded bore of the housing part, in particular a washer is pressed by the screw head of the second screw against the circuit board, and / or that the spring contacts are arranged circumferentially around the screw axis of the second screw in areas which each cover the same radial clearance area about the screw axis of the second screw and / or are arranged uniformly spaced in the circumferential direction about the screw axis of the second screw. Plant according to one of the Claims 11 to 12 , characterized in that the screws are arranged coaxially aligned with each other, and / or that the primary coil has a flat ferrite layer, which is arranged on the distributor device and / or the bottom-facing side of the primary winding. Plant according to one of the Claims 11 to 13 , characterized in that the primary coil has a further housing part (71) which covers the printed circuit board 80 to the bottom, in particular to the connection cover 50, wherein the further housing part (71) has sleeve-like elevations, in particular which emphasize directed towards the ground out the remaining housing part (71), wherein a respective sleeve-like elevation is respectively inserted into a respective one of the openings of the connection cover. Plant according to one of the Claims 11 to 14 , characterized in that the line conductor is accommodated in a receiving part, wherein the receiving part has barbs acting extensions on its outer wall.

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