DE102009019125A1 - Vehicle, particularly electrically operable vehicle, has secondary winding of inductive transformer, which is arranged in area with cover and lower part - Google Patents

Abstract

The vehicle has a secondary winding (2) of an inductive transformer, which is arranged in an area with a cover (20) and a lower part (21). The secondary winding is inserted on a cathedral-like singular area. A primary winding (6) is inserted on the cathedral-like singular area for loading energy storage of the vehicle. An independent claim is also included for a method for operating a vehicle.

Description

The The invention relates to a vehicle, in particular an electrically operable Vehicle, and a method of operating a vehicle.

It is known energy storage of an electrically operable vehicle to a charger connect directly and charge.

Of the Invention is therefore the object of the safety in the Loading of vehicles to increase.

According to the invention Task in the vehicle according to claim 1 and in the method solved according to the features indicated in claim 10.

Important features of the invention in the vehicle, in particular in the electrically operable vehicle are that
a secondary winding of an inductive transformer is arranged in a region encompassed by a cover and a lower part,
wherein the secondary winding is attached to a dome-like outstanding area,
wherein a primary winding is attachable to the dome-like region, in particular for loading an energy storage of the vehicle.

From The advantage here is that a high efficiency by means of the closing of the Cover is reachable and safety is increased, as the inductive transmission in a lockable Area takes place.

at According to an advantageous embodiment, the secondary winding has a capacitance in parallel or connected in series, so that the associated resonant frequency of the frequency of the supplied alternating current corresponds. It is advantageous that a high efficiency is achievable, which also insensitive von Abstandsschwankungen or even air gap fluctuations in the inductive coupling is.

at an advantageous embodiment of the lid with the lower part solvable connectable, in particular lockable. The advantage here is that a secure transmission is achievable and dangerously high Current and / or voltage values can only be released after closing are.

at an advantageous embodiment are primary winding and secondary winding each designed as a ring winding. The advantage here is that a simple production is possible.

at an advantageous embodiment is in the lid and lower part covered area ferrite material arranged such that the of the primary winding generated magnetic field by that of primary winding and secondary winding each enclosed area is conducted in the ferrite material and also passed in ferrite material in the area surrounding the windings becomes. The advantage here is that a strong inductive coupling is feasible.

at an advantageous embodiment of the secondary winding absorbed current is supplied to a rectifier, from which the energy storage is loadable. The advantage here is that the charging current controllable is, for example, by a controllable rectifier or a arranged in Ladestrompfad pulse width modulated controllable Switch, and security increases is.

In an advantageous embodiment, a sensor for detecting the closing or locking of the lid is arranged with the lower part on the lower part or lid,
wherein the sensor is connected to an electronic circuit of the vehicle, which is connected for data exchange with an electrical feed device, with which the primary winding can be acted upon by electricity, so that the loading is freely negotiable only after locking the lid with the lower part. The advantage here is that the security is increased.

at an advantageous embodiment is on the inside of the lid and the bottom ferrite material arranged. It is advantageous that increases the efficiency is as well as the safety, in particular by means of the higher wall thickness against external mechanical Impacts.

at an advantageous embodiment is at the on the inside of the Lower part arranged ferrite material of dome-like outstanding Area formed of ferrite material. The advantage here is that a high efficiency in a simple inexpensive way can be achieved.

Important features in the method for operating a vehicle are that the vehicle has an electrically loadable memory,
wherein the closing or locking of the lid with the lower part is monitored by a sensor arranged on the vehicle and the corresponding information is reported contactlessly to an electrical feed device, with which the primary winding can be supplied with current,
so that the loading is released only after locking the lid with the lower part.

The advantage here is that the security is increased because only after safe closing dangerous high currents transmitted from the windings become.

at According to an advantageous embodiment, the loading is done inductively. The advantage here is that a galvanic decoupling of the vehicle is achievable and thus the safety of persons can be increased.

In an advantageous embodiment, the contactless information transmission by modulation of AC components, in particular secondary-side modulation, and demodulation of the inductively transmitted AC components, in particular primary-side demodulation executed,
in particular wherein the AC components have a higher frequency than the center frequency of the impressed in the primary winding AC. The advantage here is that no additional transmission means are necessary for the data transmission in a low-interference manner. In addition, the transmission is made possible only after establishing the inductive coupling of the primary winding to the secondary winding. Thus, the safety is increased in this way.

Further Advantages emerge from the subclaims.

1

ferrite

2

secondary winding

3

centrally Ferritkernbereich

4

recess

5

secondary side management

6

primary

7

the primary side management

8th

Schraubkopfteil

9

screw threaded

20

cover

21

lower part

30

connection device

50

connection device

The invention will now be explained in more detail with reference to figures:
In the 1 a device according to the invention is shown schematically in the open state, wherein the primary winding is shown exploded, so partially lifted.

In the 2 a device according to the invention is shown schematically in the closed state.

In the 3 a secondary winding of the device is shown schematically in a partially transparent representation.

In the 4 the device without secondary winding and without a primary winding in the open view is shown schematically.

In the 5 is an associated primary winding in a partially transparent representation shown schematically.

The in 1 illustrated inductive transformer has a lower part 21 on, with a lid 20 is closable. This is on the lid 20 a screw head part with screw thread area 9 arranged, the Schraubgewindebereich 9 in a recess 4 , For example, a round punched or threaded hole can be screwed.

The lid 20 So it can be locked with the lower part.

In the open state is at least the primary winding 6 removable. The cables of the primary conductor cable 7 are by means of connecting devices 30 with the electrical wires primary winding 6 connectable.

The primary winding 6 is designed as a ring winding and provided on a support so that it has a substantially pineapple-like shape and a dome-like projecting, approximately centrally disposed area 3 of ferrite material is attachable.

The secondary-side lines 5 are by means of connecting devices 50 with the electrical wires of the secondary winding 2 connected. The secondary winding, which is also designed as a ring winding 2 also has a substantially pineapple-like shape and is on the domed outstanding, approximately centrally located area 3 attached by ferrite material.

On the inside of the lid 20 and on the inside of the lid 21 plate-shaped ferrite parts are arranged so that the magnetic field generated by the primary winding is substantially completely feasible in the ferrite material and thus a high efficiency in the inductive energy transfer can be achieved.

Preferably the device is part of an electrically operable vehicle and allows that galvanically isolated charging of an energy storage, in particular a high-voltage energy storage. Preferably, this energy storage, for example a battery or a battery when fully charged a voltage of more than 100 volts.

In this case, the lower part and the hinged or lockable lid is attached to the vehicle and also the secondary winding 2 ,

The primary winding 6 is stationary, for example, at an electric filling station or in a garage. The primary winding 6 is only for loading the energy storage after opening the lid 20 attached to the dome-like area. After closing the lid 20 the loading is carried out, in particular with a very high efficiency.

Preferably gets into the primary winding a medium frequency alternating current with a frequency between 10 and 500 kHz fed, in particular with a frequency between 19 and 30 kHz.

Of the secondary winding is a capacity connected in parallel or in series, so that the associated resonant frequency the frequency of the supplied alternating current corresponds. Thus is a high efficiency achievable, which is insensitive to deviations from the intended inductive coupling strength.

The Windings are executed on a circuit board as a carrier and shed. Especially is thus advantageously allows a cost-effective production, because the printed conductors of the circuit board as concentric rings or designed as a spiral are and therefore no complicated winding with winding wire necessary is. In this case, a multilayer printed circuit board is preferably used, because thus a higher Winding number is achievable with low volume.

The lid 20 is by means of a hinge or pivot bearing on the lower part 21 rotatably mounted.

Claims (12)

Vehicle, in particular electrically operable vehicle, characterized in that a secondary winding of an inductive transformer in one of a lid 20 and a lower part 21 covered area is arranged, wherein the secondary winding is plugged onto a dome-like outstanding area, wherein a primary winding on the dome-like outstanding area can be plugged, in particular for loading an energy storage of the vehicle. Vehicle according to at least one of the preceding Claims, characterized in that the secondary winding has a capacitance in parallel or is connected in series, so that the associated resonance frequency of the frequency of the supplied alternating current corresponds. Vehicle according to at least one of the preceding Claims, characterized in that the lid releasably connectable to the lower part, in particular lockable is. Vehicle according to at least one of the preceding Claims, characterized in that primary winding and secondary winding each designed as a ring winding are. Vehicle according to at least one of the preceding claims, characterized in that in the lid 20 and lower part 21 covered region is arranged ferrite material such that the magnetic field generated by the primary winding is passed through the area enclosed by primary winding and secondary winding each region in the ferrite material and also in the surrounding area of the windings in ferrite material is passed. Vehicle according to at least one of the preceding Claims, characterized in that the current absorbed by the secondary winding fed to a rectifier becomes, from which the energy storage is loadable. Vehicle according to at least one of the preceding Claims, thereby marked that a sensor for detecting the closing or locking the lid is arranged with the lower part on the lower part or lid is wherein the sensor is connected to an electronic circuit of the Vehicle is connected to the data exchange with an electrical power injector is connected, with which the primary winding can be acted upon with electricity is, so that loading only after locking the lid with the Lower part is freely available. Vehicle according to at least one of the preceding Claims, characterized in that on the inside of the lid and the Bottom parts ferrite material is arranged. Vehicle according to at least one of the preceding Claims, characterized in that on the inside of the lower part arranged ferrite material of dome-like outstanding area Ferrite material is formed. A method of operating a vehicle, in particular a vehicle according to at least one of the preceding claims, wherein the vehicle has an electrically loadable memory, characterized in that the closing or locking of the lid with the lower part is monitored by a sensor arranged on the vehicle and the corresponding information contactlessly reported to an electrical supply device; with which the primary winding can be supplied with current, so that the loading is released only after locking the lid with the lower part. Method according to at least one of the preceding Claims, characterized in that the loading takes place inductively. Method according to at least one of the preceding Claims, thereby marked that the contactless information transfer by modulating AC components, especially secondary side Modulation, and demodulation of inductively transmitted AC components, especially primary-side Demodulation, running, especially wherein the AC components have a higher frequency than the center frequency of the impressed in the primary winding AC.