System for the electrical contacting of suspension loops and hooks

Abstract

System (14) for electrically contacting suspension loops (12) and hooks (10), comprising: - an electrically operated object (16) with contact surfaces (20) for transmitting energy and / or data, which is equipped with a suspension loop (12) which has at least one of the contact surfaces (20); - a carrier device (18) with complementary contact surfaces (28) and a hook (10) over which the suspension loop (12) can be hung by passing the suspension loop (12) through the hook (10), wherein the hook (10) has at least one of the complementary contact surfaces (28), wherein the electrically operable object (16) and the carrier device (18) are equipped with a protective device (36) against reverse polarity of the contact surfaces (20) and complementary contact surfaces (28), characterized by the fact that the protective device (36) comprises a contact surface of a first configuration (24) and a contact surface of a second configuration (26) on the electrically operable object (16) and that the protective device (36) further comprises two complementary contact surfaces (28) on the carrier device (18) which are operatively connected to a control circuit (34) by which they can be brought into the first or second configuration, and the protective device (36) further comprises an object circuit (22) with which the contact surfaces (20) of the electrically operable object (16) are operatively connected, wherein the object circuit (22) defines the first and second configuration at least by a defined minimum charging voltage and a test voltage below the minimum charging voltage, which results in a characteristic test current flow, and that the control circuit (34) is configured to continuously generate a test voltage signal at the complementary contact surfaces (28), to measure a current flow through the complementary contact surfaces (28) and to compare the current flow with the characteristic test current flow and, if there is agreement, to generate a charging voltage signal.

Description

[0001] The invention relates to a system for electrically contacting attachment loops and hooks according to the preamble of claim 1, an electrically operable object according to the preamble of claim 8, a carrier device according to the preamble of claim 9 and a vehicle according to the preamble of claim 10.

[0002] Digitalization is increasingly leading to the integration of electrical and software-based functions into everyday objects, resulting in so-called smart objects. There is also a trend towards networking objects with each other.

[0003] For example, EP 2 803 281 A2 describes a jacket with an integrated fan and a hanger-like charging station.

[0004] GB 2 331 631 A also discloses a garment with contact surfaces and a holding device that likewise has contact surfaces. The contact surfaces of the garment and the holding device are coupled when the garment is held by the holding device. Energy and data can be transferred in this process.

[0005] DE 20 2007 004 441 U1 discloses a charging and control system for personal protective clothing. The system consists of three parts: an electrically operated device, a connecting element in the form of a clothes hanger, and a stationary busbar. Energy is transferred inductively between the clothes hanger and the protective clothing via two coils.

[0006] US 2013 / 0076302A1 discloses a system for charging portable electronic devices. The electronic device has a carrying part that incorporates means for transmitting electrical energy. This part can be placed over a hook connected to a power rail, allowing the electronic device to be charged via designated electrical connections.

[0007] However, the known solutions are not very flexible and always require a specially adapted combination of holding device and garment.

[0008] The invention is based on the objective of finding a versatile, simple and safe technical solution with which a wide variety of electrically operated objects and carrier devices can be coupled both mechanically and in terms of energy and data technology.

[0009] The problem is solved by the subject matter of independent claims 1, 8, 9 and 10. Further preferred embodiments of the invention result from the remaining features mentioned in the dependent claims.

[0010] A first aspect of the invention relates to a system for electrically contacting suspension loops and hooks, comprising: - an electrically operated object with contact surfaces for transmitting energy and / or data, equipped with a hanging loop that has at least one of the contact surfaces; and - a carrier device with complementary contact surfaces and a hook over which the suspension loop can be hung by passing the suspension loop through the hook, wherein the hook has at least one of the complementary contact surfaces.

[0011] According to the invention, the electrically operated object and the carrier device are equipped with a protective device against reverse polarity of the contact surfaces and complementary contact surfaces.

[0012] The terms "suspension loop" and "hook" are to be understood functionally in the context of the invention and are not limited to a specific structure. The suspension loop can be hung over the hook, with the hook completely passing through the suspension loop. This can be done from one side or the other, which makes the mechanical coupling very simple.

[0013] Protection against "reverse polarity" as defined in the invention means ensuring the necessary interaction between the contact surfaces and corresponding contact surfaces to guarantee the correct functioning of the electrically operated object. This includes, in particular, ensuring the correct pairing of polarities between the contact surfaces and complementary contact surfaces, for example, for charging the electrically operated object, as well as ensuring the correct pairing of data lines that are connected to the contact surfaces and complementary contact surfaces. The latter is intended to ensure flawless communication between the electrically operated object and the carrier device.

[0014] The system of the invention offers the advantage that the attachment loop can be hung over the hook from any direction and does not require a special design, as long as the functionality described above is present. The protective device ensures, for example according to mechanical and / or control engineering principles, that correct interaction between the contact surfaces and corresponding contact surfaces is guaranteed, regardless of the attachment direction. The system of the invention is therefore both simple and safe to use. In particular, the system is very flexible, since attachment loops can be provided on almost any object and the hook does not have to be designed for a specific object, as is the case, for example, with a clothes hanger from the prior art.

[0015] The contact surfaces can partially or completely cover a section of the attachment loop's outer surface over a limited length. The same applies to the hook and the complementary contact surfaces. This increases the reliability of the connection.

[0016] The electrically operated object can be a wide variety of portable items that are designed for at least the transmission of electrical energy or data. Examples include functional clothing, accessories, electrical appliances, and combinations thereof.

[0017] Some examples include jackets, bags, or backpacks with integrated electrical functionality. These can be easily and safely charged using the invention's system. Data transfer is also possible if, for example, the jacket is equipped with a data storage device such as an MP3 player.

[0018] In other words, the electrically powered device can also be composed of several items, for example, a briefcase and a smartphone that is operatively connected to the briefcase for the purpose of energy and / or data exchange. The briefcase can then, for example, be equipped with a hanging loop and suspended from a hook, such as on a car seat, as described in the invention. The smartphone can then be charged in the briefcase, with the energy being supplied to the briefcase by the vehicle acting as a carrier device. The briefcase itself can also include, for example, an additional battery as a power bank, which is also charged.

[0019] This example shows that the support device, such as a vehicle seat, can in turn be embedded in a higher-level system, such as the vehicle itself. For instance, the vehicle can communicate with a smartphone in a briefcase. Similarly, several electrically operated devices can be attached to different hooks in the vehicle and communicate with each other via the vehicle as an interface.

[0020] The invention is of course not limited to an application in the automotive sector, but is relevant wherever the person skilled in the art recognizes a benefit for the mechanical and electrical coupling of electrically operated objects and carrier devices, especially in the case of smart objects.

[0021] According to the invention, the protective device comprises a contact surface of a first configuration and a contact surface of a second configuration on the electrically operable object, and the protective device further comprises two complementary contact surfaces on the carrier device, which are operatively connected to a control circuit with which they can be brought into the first or second configuration.

[0022] The configurations of the complementary contact surfaces can thus be flexibly adapted to the configuration of the contact surfaces.

[0023] According to the invention, it is further provided that the protective device further comprises an object circuit with which the contact surfaces of the electrically operable object are operatively connected, wherein the object circuit defines the first and second configurations at least by a defined minimum charging voltage and a test voltage below the minimum charging voltage, which results in a characteristic test current flow, and that the control circuit is configured to continuously generate a test voltage signal at the complementary contact surfaces, to measure a current flow through the complementary contact surfaces and to compare the current flow with the characteristic test current flow and, if there is a match, to generate a charging voltage signal.

[0024] A defined voltage is generally characterized by a specific polarity or direction and a specific magnitude. The test circuit can, for example, include a charging circuit for charging a battery and a detection circuit that, when correctly activated, generates the characteristic test current flow.

[0025] The characteristic test current flow is preferably generated when the carrier device is coupled to an electrically operable object in such a way that the configurations of the coupled contact surfaces and complementary contact surfaces match and a test voltage signal is supplied from the carrier device to the detection circuit.

[0026] The object circuit can preferably allow the characteristic test current flow with respect to a defined test voltage signal of the control circuit of a compatible carrier device with a specific current intensity and current direction.

[0027] If no devices or no compatible devices are connected, the current flow is correspondingly not characteristic or does not flow at all.

[0028] The test voltage signal can preferably be very weak, for example, only in the range of 1 V. This ensures safety and efficiency at all times. The characteristic test current can, for example, be in the range of a few mA and flow in a specific direction. The characteristic test current can also indicate whether a connected object is already charged or discharged, as the charging characteristic changes.

[0029] When a compatible device is connected and the characteristic test current flow results from the test voltage signal, the control circuit can detect this by measuring and evaluating the current flow, for example, in a measuring section of the control circuit. The control circuit can preferably continuously generate the test voltage signal and regularly reverse its polarity until the coupling of the contact surfaces with the complementary contact surfaces in the correct configuration is detected by the resulting test current flow. Once, for example, the compatible device is connected and detected, the control circuit can generate the stronger charging voltage signal, which can be in the range of approximately 5 V DC or even higher. The device circuit is preferably designed such that a charging process only begins when the defined minimum charging voltage is reached.

[0030] In a further preferred embodiment of the system of the invention, it is provided that the circuit for defining the minimum charging voltage comprises a charge controller and further comprises a blocking diode connected in parallel between the contact surfaces and the charge controller for defining the test voltage.

[0031] When the test voltage signal is generated, the current can only flow through the blocking diode, since the charge controller is only activated at a higher minimum charging voltage. Furthermore, the current can only flow in the forward direction, thus indicating whether the contact surfaces are correctly polarized.

[0032] This design allows, in particular, for the simple and safe use of direct current.

[0033] Preferably, a resistor is connected in series with the blocking diode, for example in the range of 1 MΩ, so that the current flow is safe.

[0034] In a preferred embodiment of the system of the invention, it is provided that the protective device comprises at least one contact surface of a first configuration on the attachment loop, next to which a contact surface of a second configuration is arranged, and that the protective device further comprises two complementary contact surfaces of the first configuration on the hook, between which a complementary contact surface of the second configuration is arranged, so that the contact surface of the first configuration of the attachment loop contacts a complementary contact surface of the first configuration of the hook when the attachment loop is hung over the hook, and at the same time the contact surface of the second configuration of the attachment loop contacts the complementary contact surface of the second configuration of the hook.

[0035] This offers the advantage that pairing of contact surfaces with different configurations is impossible, since the mechanical design inherently dictates that the contact surfaces of the first configuration are always paired with the complementary contact surfaces of the first configuration, and the contact surfaces of the second configuration with the complementary contact surfaces of the second configuration. Because only contact surfaces and complementary contact surfaces of the same configuration come into contact, short-circuit-free and interference-free charging or communication is always guaranteed.

[0036] Preferably, the protective device comprises two contact surfaces of the first configuration on the suspension loop, between which a contact surface of a second configuration is arranged, such that the contact surfaces of the first configuration of the suspension loop contact the complementary contact surfaces of the first configuration of the hook when the suspension loop is hung over the hook, and at the same time the contact surface of the second configuration of the suspension loop contacts the complementary contact surface of the second configuration of the hook.

[0037] This further increases the certainty that contact will be made, as the total area of ​​the contact surfaces of the first configuration is increased.

[0038] The term "configuration" generally refers to the functional assignment of the contact surface, for example, the required voltage, in terms of direction and magnitude, for charging the electrically operated object, or a required voltage to elicit a reaction other than charging, such as data exchange. The configuration thus results in particular from a circuit that is integrated with the respective contact surface or complementary contact surface. It is obvious to those skilled in the art that an electrical contact surface always requires an integrated circuit, since contact surfaces themselves are limited in their function to making contact. For the sake of simplicity, a distinction is not always made here between the contact surface itself and the contact surface with its associated circuit.

[0039] In an alternative preferred embodiment of the system of the invention, it is provided that the electrically operable object comprises two contact surfaces and the carrier device comprises two complementary contact surfaces, and that the protective device comprises an object circuit operatively connected to the contact surfaces and a control circuit connected to the complementary contact surfaces, wherein the control circuit is configured to generate a charging AC voltage signal, and wherein the object circuit comprises a charging current rectifier.

[0040] In this case, the correct polarity of the complementary contact surfaces no longer needs to be determined, and the system's design can be simplified. Reverse polarity is impossible because the charging current is always directed according to demand.

[0041] This means that alternating current can also be used easily and safely.

[0042] The contact surfaces and complementary contact surfaces can be arranged in a variety of flexible ways. Based on the teaching disclosed below, the respective support system, and the objects to be coupled to it, the person skilled in the art will select a suitable arrangement.

[0043] In a further preferred embodiment of the system of the invention, it is provided that the contact surfaces are provided on the attachment loop and the complementary contact surfaces are provided on the hook.

[0044] The contacts are thus compactly concentrated on the area of ​​mechanical coupling between the hanging loop and the hook. For example, a jacket, bag, or backpack can be equipped with the hanging loop. The two contact surfaces in the hanging loop can be positioned, for instance, so that when the item is hung on the hook, they are located on the right and left sides of the hook. The hook also has two complementary contact surfaces on its right and left sides, positioned so that, when the item is hung, the contact surfaces of the hanging loop touch the two complementary contact surfaces of the hook.

[0045] An insulating surface is preferably provided between the two complementary contact surfaces, which is wider than either individual contact surface on the suspension loop. This prevents a short circuit between the charging contacts when the device is suspended.

[0046] In an alternative preferred embodiment of the system of the invention, it is provided that the electrically operable object comprises two suspension loops and that a contact surface is provided on each of the suspension loops, and that the carrier device comprises two hooks and that a complementary contact surface is provided on each of the hooks.

[0047] This ensures sufficient spatial separation of the contact surfaces, eliminating the need for separate insulating surfaces. Furthermore, the mechanical coupling between the electrically operated object and the support device is more stable, as torques can be absorbed.

[0048] In an alternative preferred embodiment of the system of the invention, it is provided that a contact surface is provided on the suspension loop and a contact surface is provided on a contact section of the electrically operated object, which contacts the carrier device when the suspension loop is hung over the hook, and that a complementary contact surface is provided on the hook and a complementary contact surface is provided on a complementary contact section of the carrier device, which is contacted by the contact section when the suspension loop is hung over the hook.

[0049] The contact section and the complementary contact section can, for example, be provided on side surfaces of the electrically operated object or the carrier device that touch due to gravity when the electrically operated object is hung over the hook with the suspension loop.

[0050] Another aspect of the invention relates to an electrically operated object designed for use in a system according to the invention as described above.

[0051] Another aspect of the invention relates to a carrier device designed for use in a system according to the invention as described above.

[0052] Another aspect of the invention relates to a vehicle comprising a system according to the preceding description or a carrier device according to the preceding description or an electrically operable object according to the preceding description.

[0053] In other words, the basic idea of ​​the invention is based on a system for the electrical contacting of suspension loops and hooks. It is provided that a protective device detects whether the electrical contacting has taken place and whether the contact surfaces on the suspension loop and complementary contact surfaces on the hook are correctly configured relative to each other for the transmission of energy and / or data.

[0054] Unless otherwise stated in individual cases, the various embodiments of the invention mentioned in this application can be advantageously combined with one another.

[0055] The invention is explained below using exemplary embodiments with reference to the accompanying drawings. These show: Fig. 1 a number of exemplary forms of hooks and a basic attachment loop for a system according to the invention; Fig. 2 a system according to the invention in a first embodiment; Fig. 3 a towing loop for the system made of Fig. 3; Fig. 4 a system according to the invention in a further embodiment; Fig. 5 a towing loop and a hook for the system made of Fig. 4; Fig. 6 Attachment loops and hooks for a system according to the invention in a further embodiment; Fig. 7 a system according to the invention in a further embodiment; and Fig. 8 a vehicle according to the invention.

[0056] Fig. Figure 1 shows a number of exemplary forms of hooks 10 and, in principle, a representation of a suspension loop 12 for a system 14 according to the invention (compare other figures).

[0057] The individual shapes of the hooks 10 are freely configurable. Functionally, it is important that the attachment loop 12, as shown on the right in Fig. 1 shown as an example, it can be hung from two directions over hook 10.

[0058] Fig. Figure 2 shows a system 14 according to the invention in a first embodiment. The system 14 comprises an electrically operated object 16 and a support device 18. Both are represented in principle by their system boundaries.

[0059] The electrically operated object 16 has a suspension loop 12, for example a suspension loop 12 as in Fig. 1 shown.

[0060] The support device 18 includes a hook 10, which is also arranged as in Fig. 1 shown can be trained.

[0061] In Fig. Figure 2 shows the electrically operated object 16 and the support device 18 in an uncoupled state. For coupling, the attachment loop 12 can be hung over the hook 10.

[0062] The attachment loop 12 has contact surfaces 20 which, in this example, are operatively connected to an object circuit 22. The contact surfaces 20 can transmit energy or data via the object circuit 22. The following describes an example of energy transmission during a charging process.

[0063] The contact surfaces 20 are configured by the object circuit 22. In this case, two contact surfaces of a first configuration 24 and one contact surface of a second configuration 26 are provided. The first configuration includes, by way of example, a negative polarity for electrically charging the electrically operable object 16, and the second configuration includes, by way of example, a positive polarity for this purpose.

[0064] With regard to the carrier device 18, complementary contact surfaces 28 are discernible, which are provided on the hook 10. The configurations correspond to those of the contact surfaces 20, so that the hook 10 has two complementary contact surfaces of the first configuration 30 and one complementary contact surface of the second configuration 32.

[0065] The complementary contact surfaces 28 are operatively connected to a control circuit 34, which generates a charging voltage signal in order to bring the complementary contact surfaces 28 into their respective configuration.

[0066] When the suspension loop 12 is hung over the hook 10, the contact surfaces of the first configuration 24 and the complementary contact surfaces of the first configuration 30, as well as the contact surface of the second configuration 26 and the complementary contact surface of the second configuration 32, inevitably come into contact, regardless of which way the suspension loop 12 is hung over the hook 10. This is because the contact surface of the second configuration 26 and the complementary contact surface of the second configuration 32 are always located between the respective contact surfaces of the first configuration 24 and the complementary contact surfaces of the first configuration 30, respectively.

[0067] In this way, the suspension loop 12 and the hook 10, with the two possible suspension directions, the arrangement of the contact surfaces 20 and the complementary contact surfaces 28 and the respective circuits 22, 34 form a protective device 36 against reverse polarity of the contact surfaces 20 and complementary contact surfaces 28. The protective device 36 is also systematically indicated by its system boundaries.

[0068] Fig. Figure 3 shows an example of how the attachment loop 12 for the system 14 is made of Fig. 2 can be mechanically and electrically designed.

[0069] The contact surface of the second configuration 26 is visible at the top center, and the two contact surfaces of the first configuration 24 are visible on the left and right sides. An insulating section 38 is provided between each of the contact surfaces of the second configuration 26 and the contact surfaces of the first configuration 24.

[0070] By attaching the suspension loop 12 to the hook 10, the contact surfaces 20 are positioned to the complementary contact surfaces 28 of the hook 10 solely by the force of gravity acting on the electrically operated object 16.

[0071] Fig. Figure 4 shows a further embodiment of the system 14 according to the invention. The differences to the system described in Figure 4 are discussed in detail below. Fig. 2. Example shown.

[0072] It can be seen that this system 14 according to the invention also comprises a suspension loop 12 on an electrically operated object 16. However, the suspension loop 12 here only has two contact surfaces 20.

[0073] The contact surfaces 20 comprise a contact surface of a first configuration 24 and a contact surface of a second configuration 26. The contact surfaces 20 are in turn operatively connected to an object circuit 22. The object circuit 22 comprises a charging circuit 40 with charge controller 42 with accumulator 44 and a detection circuit 46 described below.

[0074] The configurations of the contact surfaces 20 include a minimum charging voltage specified by the charge controller 42, which is characterized firstly by its charging polarity, for example, "negative" in the case of the contact surface of the first configuration 24 and "positive" in the case of the contact surface of the second configuration 26. Secondly, the minimum charging voltage is characterized by a minimum value, which here is 5 V DC. Below 5 V, the charge controller 42 does not react, and the accumulator 44 is not activated.

[0075] The carrier device 18 in turn comprises a hook 10 on which two complementary contact surfaces 28 are provided. The control circuit 34 of the carrier device 18 is able to selectively bring these into either the first ("negative") or second ("positive") configuration.

[0076] Since it is not predictable from which direction the suspension loop 12 will be hung over the hook 10, in conventional terms there is the possibility that the contact surfaces 20 and complementary contact surfaces 28, for example, will be brought into a short-circuit pairing.

[0077] To avoid this, the object circuit 22 also includes the aforementioned detection circuit 46. The detection circuit 46 comprises a blocking diode 48, to which a resistor 50 of, for example, 1 MΩ is connected. The blocking diode allows current to flow from negative to positive. (No distinction is made here between conventional and physical current direction. The crucial point is that the blocking diode 48 only conducts in one direction.)

[0078] The configuration of the contact surfaces 20 includes, with the blocking diode 48, a test voltage which, below the minimum charging voltage, leads to a characteristic test current flow through the resistor 50.

[0079] To ensure correct polarity when coupling the complementary contact surfaces 28 with the contact surfaces 20, the control circuit 34 first continuously generates a test voltage signal at the complementary contact surfaces 28, which periodically changes its polarity between "negative" and "positive" and has a value of less than 5 V, here exemplified as 1 V.

[0080] In a measuring section 52 of the control circuit 34, a current flow through the complementary contact surfaces 28 is measured and compared with a characteristic test current flow stored in the measuring section 52. This characteristic test current flow can, for example, only be in the range of 10 -3 mA, in the event that a current flows via the complementary contact surfaces 28 through the resistor 50 and the blocking diode 48.

[0081] When the suspension loop 12 is hung over the hook 10, the characteristic test current flow will only occur at the weak test voltage signal if the polarity of the complementary contact surfaces 28 corresponds to the forward direction of the blocking diode 48, because the charge controller 42 remains inactive at the weak test voltage signal. The forward direction is designed such that the corresponding polarity of the complementary contact surfaces 28, when the characteristic test current flow occurs, also matches the polarity of the contact surfaces 20 provided by the charge controller 42 for charging the accumulator 44.

[0082] Accordingly, the control circuit 34 can positively determine that the complementary contact surfaces 28 are correctly polarized when the characteristic test current flow is measured and then maintain this polarity.

[0083] Then, with the polarity correctly set, a stronger charging voltage signal of, for example, 5 V can be generated by the control circuit 34 and activate the charge controller 42 to charge the accumulator 44.

[0084] In this way, the suspension loop 12 and the hook 10, with the two possible suspension directions, the arrangement of the contact surfaces 20 and the complementary contact surfaces 28 and the respective circuits 22, 34 form a protective device 36 against reverse polarity of the contact surfaces 20 and complementary contact surfaces 28. The protective device 36 is also systematically indicated by its system boundaries.

[0085] In an alternative embodiment, the charging circuit 40 can also include a charging current rectifier. The detection circuit 46 can then be omitted, since the control circuit 34 can generate a charging AC voltage signal, which is then rectified in the charging circuit 40.

[0086] Fig. Figure 5 shows a suspension loop 12 and a hook 10, exemplary for system 14 from Fig. 4.

[0087] An electrically operated object 16, which is only indicated here, is shown as an example: a briefcase with a hanging loop 12. The contact surfaces 20 are located on the handle of the briefcase, which also forms the hanging loop 12. The handle is made of electrically insulating material 54 between the contact surfaces 20.

[0088] The hook 10 includes the complementary contact surfaces 28. Furthermore, the hook 10 also consists of electrically insulating material 54.

[0089] If the attachment loop 12 is hung over the hook 10, as indicated in principle by the double arrows, a contact is formed as shown in the cross-sectional view on the right. Fig. 5 shown.

[0090] Indicated are energy or Dante lines 56, which run from the contact surfaces 20 of the handle into the briefcase.

[0091] Fig. Figure 6 shows attachment loops 12 and hooks 10 for a system 14 according to the invention in a further embodiment.

[0092] The indicated electrically operated object 16 here comprises two suspension loops 12, each with a contact surface 20 on the suspension loops 12.

[0093] The carrier device 18 accordingly comprises two hooks 10 and a complementary contact surface 28 on each of the hooks 10.

[0094] Fig. Figure 7 shows a further embodiment of a system 14 according to the invention.

[0095] This includes a contact surface 20 on a suspension loop 12 and a contact surface 20 on a contact section 58 of the electrically operable object 16.

[0096] The contact section 58 contacts the carrier device 18 when the suspension loop 12 is hung over the hook 10, as indicated by the double arrows.

[0097] A complementary contact surface 28 is provided on the hook 10. Furthermore, a complementary contact surface 28 is provided on a complementary contact section 60 of the carrier device 18.

[0098] The complementary contact section 60 is contacted by the contact section 58 when the suspension loop 12 is hung over the hook 10.

[0099] Fig. Figure 8 shows an exemplary vehicle 62 according to the invention.

[0100] The vehicle 62 comprises a carrier device 18, which is designed for use in a system 14 according to the invention. By way of example, this includes a hook 10 on a vehicle seat 64.

[0101] A suspension loop 12 of an electrically operated object 16, which is also designed for use in a system 14 according to the invention, is suspended over the hook 10. Reference symbol list 10 hooks 12 attachment loops 14 System 16 electrically operated item 18 Carrier device 20 contact area 22 Object switching 24 Contact area of ​​a first configuration 26 Contact area of ​​a second configuration 28 complementary contact surfaces 30 complementary contact surfaces of the first configuration 32 complementary contact surfaces of the second configuration 34 Control circuit 36 Protective device 38 Insulation section 40 Charging circuit 42 charge controllers 44 Accumulator 46 Detection circuit 48 Blocking diode 50 resistance 52 Measurement section 54 electrically insulating material 56 Energy or data line 58 Contact section 60 complementary contact section 62 vehicles 64 vehicle seats

Claims

[1] System (14) for electrically contacting suspension loops (12) and hooks (10), comprising: - an electrically operated object (16) with contact surfaces (20) for transmitting energy and / or data, which is equipped with a suspension loop (12) which has at least one of the contact surfaces (20); - a carrier device (18) with complementary contact surfaces (28) and a hook (10) over which the suspension loop (12) can be hung by passing the suspension loop (12) through the hook (10), wherein the hook (10) has at least one of the complementary contact surfaces (28), wherein the electrically operable object (16) and the carrier device (18) are equipped with a protective device (36) against reverse polarity of the contact surfaces (20) and complementary contact surfaces (28), characterized by , that the protective device (36) comprises a contact surface of a first configuration (24) and a contact surface of a second configuration (26) on the electrically operable object (16) and that the protective device (36) further comprises two complementary contact surfaces (28) on the carrier device (18) which are operatively connected to a control circuit (34) by which they can be brought into the first or second configuration, and the protective device (36) further comprises an object circuit (22) with which the contact surfaces (20) of the electrically operable object (16) are operatively connected, wherein the object circuit (22) defines the first and second configuration at least by a defined minimum charging voltage and a test voltage below the minimum charging voltage, which results in a characteristic test current flow, and that the control circuit (34) is configured to continuously generate a test voltage signal at the complementary contact surfaces (28), to measure a current flow through the complementary contact surfaces (28) and to compare the current flow with the characteristic test current flow and, if there is agreement, to generate a charging voltage signal. [2] System (14) according to claim 1, characterized by, that the protective device (36) comprises at least one contact surface of a first configuration (24) on the suspension loop (12), next to which a contact surface of a second configuration (26) is arranged, and that the protective device (36) further comprises two complementary contact surfaces of the first configuration (30) on the hook (10), between which a complementary contact surface of the second configuration (32) is arranged, such that the contact surface of the first configuration (24) of the suspension loop (12) contacts a complementary contact surface of the first configuration (30) of the hook (10) when the suspension loop (12) is hung over the hook (10), and at the same time the contact surface of the second configuration (26) of the suspension loop (12) contacts the complementary contact surface of the second configuration (32) of the hook (10). [3] System (14) according to claim 1, characterized by, that the object circuit (22) includes a charge controller (42) for defining the minimum charging voltage and furthermore includes a blocking diode (48) connected in parallel between the contact surfaces (20) and the charge controller (42) for defining the test voltage. [4] System (14) according to claim 1, characterized by , that the electrically operable object (16) comprises two contact surfaces (20) and the carrier device (18) comprises two complementary contact surfaces (28) and that the protective device (36) comprises an object circuit (22) operatively connected to the contact surfaces (20) and a control circuit (34) connected to the complementary contact surfaces (28), wherein the control circuit (34) is configured to generate a charging AC voltage signal, and wherein the object circuit (22) comprises a charging current rectifier. [5] System (14) according to any one of claims 1 to 4, characterized by, that the contact surfaces (20) are provided on the attachment loop (12) and the complementary contact surfaces (28) are provided on the hook (10). [6] System (14) according to claim 1, characterized by , that the electrically operated object (16) comprises two suspension loops (12) and a contact surface (20) is provided on each of the suspension loops (12) and that the carrier device (18) comprises two hooks (10) and a complementary contact surface (28) is provided on each of the hooks (10). [7] System (14) according to claim 1, characterized by, that a contact surface (20) is provided on the suspension loop (12) and a contact surface (20) is provided on a contact section (58) of the electrically operated object (16) which contacts the carrier device (18) when the suspension loop (12) is hung over the hook (10), and that a complementary contact surface (28) is provided on the hook and a complementary contact surface (28) is provided on a complementary contact section (60) of the carrier device (18) which is contacted by the contact section (58) when the suspension loop (12) is hung over the hook (10). [8] Electrically operable object (16) designed for use in a system (14) according to any one of claims 1 to 7. [9] Carrier device (18) designed for use in a system (14) according to any one of claims 1 to 7. [10] Vehicle (62) comprising a system (14) according to any one of claims 1 to 7 or a carrier device (18) according to claim 9 or an electrically operable object (16) according to claim 8.

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