Device for arrangement on current busbars, comprising a switching device and an electronic module

Description

[0001] The present invention relates to a device for arrangement on busbars, comprising a switching device and an electronic module. The switching device can, in particular, be a fuse strip or load-break switch for low-voltage high-performance (NH) fuses.

[0002] Switchgear, which typically serves power distribution, is subject to increasingly stringent requirements. In particular, switchgear is required to be equipped with electronic components for data acquisition and processing, for example, to continuously monitor and measure all current and voltage-relevant data and / or to monitor the electrical fuses incorporated into the switchgear and their status, or to monitor the switching status of the switchgear.

[0003] DE 297 05 224 U1 discloses a device for mounting on busbars. This device comprises an NH fuse or NH load-break switch and a device support bar. Furthermore, the device comprises a transformer wired to a measuring sensor or a terminal or plug bar. The separate device support bar accommodates the transformer, and the terminal or plug bar or the measuring sensor is assigned to the device support bar. The device support bar is arranged between the busbars and the switching device, with the switching device being placed on the device support bar, whereby the device requires more space in the vertical direction than the switching device itself. A separate measuring sensor can be mounted on the device.

[0004] EP 2 053 627 A2 relates to an NH fuse switch disconnector comprising a housing with a base surface and at least one feed-in contact which protrudes above the base surface, and comprising a current transformer surrounding the feed-in contact.

[0005] From EP 3 671 785 A1 an arrangement of a carrier part and an upper part of a switching device with electronic components integrated in the arrangement is known, which corresponds to the preamble of claim 1.

[0006] EP 1 058 283 A2, EP 3 671 984 A1 and EP 1 818 964 A2 disclose further prior art.

[0007] The object of the present invention is to provide a device for arrangement on busbars, comprising a switching device and an electronic module, which is characterized by particularly simple handling and also by a particularly small installation space requirement. Furthermore, the object of the invention is to provide a device comprising a switching device and an electronic module, which enables a particularly simple and rapid replacement of components of the electronic module. These objects are achieved by a device having the features of patent claim 1. Advantageous embodiments are the subject of the dependent claims.

[0008] The device according to the invention for arrangement on busbars comprises a switching device, also referred to as a switching device, and an electronic module. The switching device is, in particular, a fuse strip or load-break switch for NH fuses. The switching device according to the invention is, in particular, a switching device for arrangement on a so-called 100 mm busbar system, in which the center axes of adjacent busbars have a distance of 100 mm. However, it is also entirely conceivable to use such a device on busbars with a distance smaller or larger than 100 mm, for example, on busbars with a distance of 185 mm, whereby appropriate adapters can be used for this purpose.

[0009] The switching device of the device according to the invention has a front side that is to be turned away from the busbars. The front side is thus the side of the switching device that faces an operator of the switching device. When connected to the busbars, the front side of the switching device is accessible to the operator, whereas the rear side of the switching device opposite the front side and facing the busbar system is not accessible to the operator. The switching device further has a housing and fuse receptacles arranged in a longitudinal direction of the switching device for receiving fuses, preferably on the front side, wherein a contact pair is assigned to each fuse receptacle. One contact of the contact pair is connected to an input current conductor and the other contact of the contact pair is connected to an outgoing current conductor.The electronic module comprises a housing and a sensor component for voltage and / or current and / or energy measurement. Furthermore, the electronic module comprises a processing component for detecting and further processing an output signal or a preprocessed output signal from the sensor component, as well as a transfer component for forwarding the output signal or preprocessing the output signal and forwarding the preprocessed output signal to the processing component. The housing of the electronic module comprises a first housing section, a second housing section, and a third housing section. The sensor component is mounted in the first housing section, the transfer component is mounted in the second housing section, and the processing component is mounted in the third housing section. The switching device and the electronic module are detachably connected to one another.The first housing section of the electronic module is arranged on a rear side of the switching device facing away from the front side and the second housing section and the third housing section of the electronic module protrude in the longitudinal direction of the switching device relative to the switching device.

[0010] The advantage is that the electronic module can be equipped or pre-assembled with the components independently of the switching device.

[0011] In particular, the device according to the invention enables particularly simple final assembly of the device and / or retrofitting of existing switching devices with the electronic module. The electronic module is preferably designed such that, apart from the mechanical connection of the switching device and the electronic module, no separate cabling or similar is required on the switching device, particularly insofar as the sensor device is positioned during the mechanical connection process in which it can detect the desired measured variable.

[0012] The transfer component serves as an adapter between the sensor component and the processing component, establishing an electrical and / or optical connection between the sensor component and the processing component. Preferably, the transfer component serves only to forward the output signal of the sensor component to the processing component. The output signal of the sensor component is thus processed for the first time in the processing component.

[0013] Preferably, the sensor component, the transfer component, and the further processing component form separate components. In such an embodiment, the further processing component can be handled, in particular assembled and replaced, independently of the sensor component and the transfer component. The same applies accordingly to the sensor component and the transfer component. This allows for separate replacement of the respective component, for example, in the event of a defect.

[0014] However, it is also entirely conceivable for the sensor component and the transfer component to be implemented in one and the same component, in particular for this component and the further processing component to form separate components. In this respect, in such an embodiment, the further processing component can be handled, in particular assembled and replaced, independently of the sensor component and the transfer component. The sensor component and the transfer component, on the other hand, can only be handled, in particular assembled and replaced, together. The advantage of such an embodiment is, in particular, that the functional scope of the electronic module can be determined essentially by the further processing component used, and identical parts can be used for the sensor and transfer components.In such an embodiment, it is conceivable, for example, that the sensor component and the interface component are mounted on one and the same circuit board, or that the populated circuit board forms the sensor and interface components, with the common circuit board extending from the first housing section into the second housing section. The populated circuit board forming the sensor and interface components can certainly be designed as a printed circuit board.

[0015] It is considered particularly advantageous if the sensor component is mounted exclusively in the first housing section and / or the transfer component is mounted exclusively in the second housing section and / or the further processing component is mounted exclusively in the third housing section. However, it is also entirely conceivable for regions of the transfer component to be mounted in the first housing section, for example, conductor tracks of a printed circuit board extend partially into the first housing section. It is also conceivable for regions of the sensor component to be mounted in the second housing section, for example, conductor tracks of a printed circuit board extend partially into the second housing section.

[0016] The switching device preferably has a receiving area on the rear side opposite the front side, with the first housing section of the electronic module being arranged in the receiving area. Because the first housing section of the electronic module is arranged in the receiving area of ​​the switching device, the device has a particularly small vertical dimension. The vertical dimension runs from the front side of the switching device toward the rear side of the switching device.

[0017] The electronic module is in particular equipped with electronics for measuring and / or processing measured values, for example to permanently monitor or measure all current and voltage-relevant data and / or to monitor electrical fuses incorporated in the switching device and their status or to monitor the switching status of the switching device.

[0018] It is considered particularly advantageous if the first housing section is arranged vertically entirely within the receiving area of ​​the switching device. This means that the installation space required for the device in the vertical direction is not increased, or at least only slightly increased, compared to the installation space required for the switching device itself.

[0019] In addition to the smaller installation space requirement, the arrangement of the first housing section in the receiving area of ​​the switching device has the advantage that the mechanical stability of the connection between the switching device and the electronic module is increased, since the housing of the switching device at least partially overlaps the first housing section of the electronic module in the vertical direction, whereby additional stabilization is achieved at least in a transverse direction of the device.

[0020] By arranging the first housing section in the receiving area, the mechanical stability of the entire device is also increased in a simple manner. Accordingly, additional connecting elements for mechanically connecting the switching device and the electronic module can be omitted, or at least their number can be reduced, thereby simplifying the connection and / or detachment of the switching device and the electronic module.

[0021] Because the second housing section and the third housing section protrude longitudinally relative to the switching device, the device has a particularly favorable design with regard to the installation space typically available. For example, busbars on which the device is to be arranged are typically arranged in a switchgear cabinet, with a plurality of switching devices typically being arranged adjacent to one another in the transverse direction of the switching devices in such a switchgear cabinet. The protrusion of the first housing section and the second housing section in the longitudinal direction thus does not increase the installation space required by the device in the transverse direction, so that the use of the electronics module does not have a negative impact on the space required in the transverse direction.Accordingly, in existing arrangements of switchgear on busbars, it is possible to retrofit one or more of the switchgear with an electronics module without having to change the position of the remaining switchgear on the busbars. Typically, however, there is space available in the longitudinal direction of the switchgear, allowing the switchgear to be easily fitted with an electronics module.

[0022] It is considered advantageous if the second housing section adjoins the first housing section in the longitudinal direction of the switching device, and the third housing section adjoins the second housing section in the front direction, thus opposite to the vertical direction. This design results in a particularly small installation space requirement in the longitudinal direction, and the device itself is designed to be particularly compact.

[0023] It is considered particularly advantageous if the third housing section can be removed from the second housing section from the front side, i.e., from the side facing the operator. In particular, the third housing section can be detached from the second housing section even when the switching device and electronic module are connected to each other.

[0024] Preferably, the first housing section and the second housing section are permanently connected to one another, in particular formed by the same component. Preferably, the third housing section is detachably connected to the second housing section. This allows the further processing component to be replaced and installed particularly easily.

[0025] It is considered particularly advantageous if the third housing section adjoins the housing of the switching device in the longitudinal direction of the switching device.

[0026] In particular, it is provided that the third housing section and the second housing section are connected by means of separate connecting means, for example by means of

[0027] Screws, are releasably connected to one another, wherein the connecting means are accessible from a side of the third housing section facing away from the second housing section. Thus, the connecting means can be released from a side facing the operator in the assembled state, for example, to remove the third housing section from the second housing section.

[0028] It is considered particularly advantageous if the further processing component is detachably mounted in the third housing section, in particular the further processing component can be inserted into the third housing section from the side of the third housing section facing the second housing section.

[0029] It is considered particularly advantageous if the further processing component is supported at the front on a partial area of ​​the third housing section and at the rear on the second housing section or the transfer component. As a result, the further processing component is held in position particularly easily and securely in the vertical direction when the two housing sections are assembled, and can be detached from the third housing section particularly easily when the third housing section is detached from the second housing section. This facilitates the installation of the further processing component and any replacement of the further processing component. In particular, additional connecting means and / or locking means for fixing the position of the further processing component in the third housing section for the purpose of fixing the position in the vertical direction can be dispensed with.

[0030] It is considered particularly advantageous if the transfer component has a first connecting device and the further processing component has a second connecting device, wherein the first connecting device and the second connecting device can be coupled to one another electrically and / or optically, in order to establish an electrical and / or optical connection between the transfer component and the further processing component by electrically and / or optically coupling the first connecting device to the second connecting device when mechanically connecting the second housing section and the transfer component arranged therein to the third housing section and the further processing component arranged therein.This eliminates the need for a separate electrical and / or optical connection between the transfer component and the further processing component of the electronics, such as manual cabling, since during the process of mechanically connecting the second housing section to the third housing section, the first connecting device electrically and / or optically couples to the second connecting device. The term "coupling" refers to the establishment of a desired electrical and / or optical connection.

[0031] This design simplifies the assembly effort and, in particular, simplifies the replacement of the further processing component, especially in the event that the further processing component is defective or is to be replaced with another further processing component.

[0032] It is considered particularly advantageous if the first connecting device and / or the second connecting device has a spring contact, in particular if the spring contact of the second connecting device is formed on a side of the further processing component facing the second housing section. The use of a spring contact ensures particularly reliable electrical contact even with manufacturing or assembly tolerances.

[0033] The coupling between the first connecting device and the second connecting device is preferably carried out by contacting a contact surface of one connecting device with the spring contact of the other connecting device.

[0034] Preferably, the input current conductors are spaced apart from the rear of the switching device, thus being set back inward relative to the rear of the switching device. This design of the switching device provides a particularly simple way of forming the receiving area of ​​the switching device, which is free of input current conductors.

[0035] Preferably, the electronic module is arranged in the receiving area such that the electronic module is arranged between the input current conductors and the current busbars.

[0036] In particular, it is provided that the housing of the switching device protrudes on the rear side of the switching device, thus in the vertical direction, relative to the first housing section and / or is flush with it, particularly preferably protrudes relative to the first housing section and the second housing section and / or is flush with it.

[0037] It is considered advantageous if the further processing component and / or the transfer component and / or the sensor component have a printed circuit board, in particular if the further processing component and the transfer component and the sensor component each have a printed circuit board. However, it is also entirely conceivable for the transfer component and the sensor component to have a common printed circuit board.

[0038] The further processing component is preferably designed as a measuring board. The sensor component is preferably designed as a signal board or has at least one signal board. The transfer component is preferably designed as a transfer board.

[0039] It is considered particularly advantageous if the sensor component has a printed circuit board, with all components of the sensor component, for example, a current sensor, particularly in the form of a Hall sensor, a voltage sensor, or a voltage tap, being mechanically connected to the printed circuit board. This makes the sensor component particularly easy to handle and can therefore be mounted and / or replaced as a single unit.

[0040] Preferably, any voltage taps are designed as pogo pins.

[0041] It is considered particularly advantageous if the transfer component has a printed circuit board, with all components of the transfer component being mechanically connected to the circuit board. This makes the transfer component particularly easy to handle and can therefore be installed and / or replaced as a single unit.

[0042] It is considered particularly advantageous if the processing component has a printed circuit board, with all components of the processing component being mechanically connected to the circuit board. This makes the processing component particularly easy to handle and can therefore be assembled and / or replaced as a single unit.

[0043] It is considered advantageous if the sensor component has a printed circuit board, wherein a component side of the printed circuit board faces away from the sensor component of the switching device and / or wherein the transfer component has a printed circuit board, wherein a component side of the printed circuit board faces the further processing component. This design makes it possible to arrange the printed circuit boards of the respective component in a particularly advantageous manner. Preferably, the printed circuit board of the sensor component and the printed circuit board of the transfer component are arranged offset from one another in the vertical direction, wherein the printed circuit board of the sensor component is arranged offset from the printed circuit board of the transfer component towards the front side and correspondingly the printed circuit board of the transfer component is arranged offset from the printed circuit board of the sensor component towards the rear side.Because the interface component and the sensor component each have a circuit board and are not implemented on the same circuit board or have a shared circuit board, a staggered arrangement of the circuit boards of the respective components can be achieved. This makes it possible to position the circuit board of the sensor component as close as possible to the input current conductor, which has a beneficial effect on the acquisition of the desired measured variables and any voltage tap that is intended to contact the input current conductor. In contrast, the interface component can be positioned as far as possible from the front of the switching device or the front of the device in order to provide the largest possible installation space for the further processing component in the vertical direction.By using two separate circuit boards, the conflicting requirements regarding the arrangement of the transfer component and the sensor component can be realized.

[0044] It is considered particularly advantageous if the further processing component comprises a printed circuit board, wherein the printed circuit board has a main extension surface, wherein a normal vector of the main extension surface runs in the transverse direction or substantially in the transverse direction, which in the assembled state typically runs in the longitudinal direction of the busbars, of the switching device. "Substantially in the transverse direction" is understood here to mean an arrangement in which the normal vector runs at an angle of > 0° to ≤ 10° to the transverse direction of the switching device. This design achieves a particularly small space requirement in the transverse direction. This is particularly advantageous if the further processing component is designed such that, in an arrangement in which the normal vector runs in the longitudinal direction of the switching device, it would protrude relative to the switching device in the transverse direction of the switching device.

[0045] Furthermore, such a design is advantageous if one and the same processing component is to be used in different switching devices, for example in switching devices with different extensions in the transverse direction. It is therefore quite conceivable that the processing component is used in a switching device with a larger transverse extension, for example a switching device for NH fuses of size 1 or larger, with the normal vector in the longitudinal direction of the switching device, but in a switching device with a smaller transverse extension, for example a switching device for NH- Fuses of size 00, with the normal vector in the transverse direction is used.

[0046] To enable data exchange with other electronic components, particularly those located outside the device, it is considered particularly advantageous if the further processing component, in particular the measuring board, has a communication interface. The communication interface is preferably a hardware interface. The communication interface can be, for example, a Modbus / RTU interface, a Modbus / TCP / IP interface, a CAN bus interface, an Ethernet interface, or a Profinet interface. It is considered particularly advantageous if the interface is accessible from the front of the switching device.

[0047] It is quite conceivable that the further processing component has a connection for an external power supply of the further processing component and / or the sensor component and / or the transfer component.

[0048] It is considered advantageous if the sensor component has at least one current transformer and / or at least one voltage transformer, preferably a number of current transformers and / or voltage transformers corresponding to the number of contact pairs, wherein the respective current transformer and / or voltage transformer is assigned to one of the input current conductors. The current transformer can be used, for example, to detect the current flowing through the switching device, for example to measure the power consumption of a load connected to the outgoing circuit of the switching device. The current transformer can be, for example, a current transformer with a core or a coreless current transformer, for example a Rogowski coil. The voltage tap is used in particular to monitor the voltage applied to a current-carrying component of the switching device, for example the input current conductor.However, the voltage tap can also be used to supply power to other components of the electronic module, in particular to the processing component. The sensor component can also include a current sensor, such as a Hall sensor. Furthermore, the sensor component can also include other sensors, such as temperature or humidity sensors. Furthermore, the sensor component can also include a fuse monitor.

[0049] Preferably, the respective current and / or voltage sensor and / or current and / or voltage converter and / or voltage tap is mechanically connected to a circuit board of the sensor component, in particular the respective converter is soldered to the circuit board and / or plugged onto the circuit board.

[0050] Preferably, the device is connected to the busbars by means of a fastening means passing through the input current conductor, in particular by means of a fastening screw.

[0051] It is considered particularly advantageous if the current transformer has a through-opening for receiving the fastening element connecting the input current conductor to the current busbar, wherein the first housing section has a bearing means for supporting the current transformer, wherein the bearing means extends through the through-opening of the current transformer. The entire sensor component can also be supported by supporting the current transformer in the bearing means, particularly if the current transformer is mechanically connected to a circuit board of the sensor component. With such a design, the fastening means can also serve as the primary conductor for the current transformer.

[0052] It is entirely conceivable that a copper roller is additionally arranged in the area of ​​the bearing means, with the fastening means passing through the bearing means and the copper roller, and the copper roller being arranged in the area of ​​the through-opening of the current transformer. The copper roller serves, in particular, as a primary conductor for a current sensor. Preferably, the copper roller contacts the busbar and the input current conductor when the device is mounted on the busbars.

[0053] Preferably, the first housing section is held in a locking manner in the switching device, in particular in a locking manner in the receiving area. In this context, it is considered particularly advantageous if the first housing section has one or more locking structures, preferably protruding toward the front side, and the housing of the switching device has counterstructures, preferably located internally, that correspond to the locking structures.

[0054] Preferably, the locking structures are detached from the counter structures from the rear of the device.

[0055] It is considered advantageous if the electronic module can be connected to the switching device from the rear side of the switching device, preferably the first housing section can be inserted into the receiving area counter to the vertical direction.

[0056] It is entirely conceivable for the third housing section and the housing of the switching device to have cooperating guide means for guiding the movement of the third housing section relative to the housing of the switching device. This is advantageous, for example, when connecting the electronic module to or detaching the electronic module from the switching device and / or when connecting or detaching the third housing section from the second housing section.

[0057] Preferably, the third housing section can be detached from the second housing section even when the switching device and electronic module are connected to each other. The detachment preferably occurs in such a way that, after releasing any connecting means, the third housing section is displaced toward the front. However, it is also entirely conceivable for the third housing section to first be displaced toward the front in order to detach the third housing section from the second housing section, and then for the third housing section to be displaced longitudinally in order to detach the third housing section from the housing of the switching device.

[0058] It is considered advantageous if the interface component and the sensor component are electrically and / or optically connected to each other via a preferably detachable cable. For this purpose, it is quite conceivable for the sensor component and / or the interface component to have a plug or socket. This simplifies assembly and replacement of the components.

[0059] It is considered advantageous if the housing of the electronics module has a cover on the rear that is detachably connected to the rest of the housing of the electronics module. This allows particularly easy access to the sensor component and / or the transfer component from the rear of the device or the electronics module. This allows easy access to the sensor component and / or the further processing component even when the switching device and electronics module are connected to each other.

[0060] The cover is preferably constructed in multiple parts, particularly in two parts. This facilitates both the manufacture of the cover and its assembly and disassembly. The connection of the rear cover of the electronic module, particularly the cover parts, is preferably achieved by means of one or more connecting screws.

[0061] Preferably, the housing of the electronic module completely encloses the sensor component, the transfer component and the further processing component.

[0062] Preferably, the first housing section has a smaller width than the second housing section. In particular, the second housing section has a width that corresponds to the width of the switching device.

[0063] It is considered particularly advantageous if the input current conductors have a spacing suitable for mounting on busbars with a spacing of 100 mm.

[0064] It is considered particularly advantageous if the first housing section has a front wall facing the input current conductors. It is entirely conceivable that the front wall has through-holes for the fastening devices and / or that voltage taps of the sensor component extend through the front wall.

[0065] Preferably, the third housing section has a cable routing channel. It is entirely conceivable for this cable routing channel to be implemented as a separate component that is detachably connected to the third housing section. This separate component can preferably be slid onto the third housing section from the front.

[0066] In the following figures, the invention is illustrated in more detail using an exemplary embodiment, without being limited to this exemplary embodiment.

[0067] They show: Fig. 1 shows a device according to the invention, comprising a switching device and an electronic module, in a perspective view, Fig. 2 shows the device according to Fig. 1 in a further perspective view, Fig. 3 the switching device according to Fig. 1 in a perspective view, Fig. 4 the device according to Fig. 1 in a further perspective view and a detailed view, Fig. 5 the device according to Fig. 1 during the process of connecting the electronic module to the switching device, Fig. 6the electronic module according to Fig. 1 in an exploded view, Fig. 7 the electronic module according to Fig. 1 during the process of connecting a third housing section to a second housing section of the electronic module, in a perspective view, Fig. 8 the electronic module according to Fig. 1 in a further perspective view, Fig. 9Housing sections of the electronic module according to Fig. 1 in a perspective view, Fig. 10in the housing sections according to Fig. 9 Components of the electronic module to be stored, in a perspective view, Fig. 11 the third housing section of the electronic module according to Fig. 1 with further processing components arranged therein, in a perspective view, Fig. 12 the device according to Fig. 1 during the process of removing the third housing section in a side view, Fig. 13 the device according to Fig. 1 in a state connected to a busbar system, in a perspective view obliquely from the front, Fig. 14 shows a further embodiment of the device during the process of removing the third housing section in a side view, Fig. 15 shows the embodiment of the device according to Figur 14 during the process of removing the third housing section in a side view, Fig. 16 the embodiment of the device according to Figur 14 during the process of removing the third housing section in a side view.

[0068] The Fig. 1 bis 13 show an embodiment of the device according to the invention for arrangement on busbars 24. Such an arrangement is shown in Fig. 13 shown. The device has a switching device 1, wherein this switching device 1 is designed here as an NH switch-disconnector strip with NH fuses of size 00. The switching device 1 is a switching device for a so-called 100 mm rail system. The device further has an electronics module 2, wherein the switching device 1 and the electronics module 2 are detachably connected to one another. The switching device 1 has a front side 3 facing away from the current busbars 24 and a rear side 12 facing the current busbars 24. Furthermore, the switching device 1 has an operating lever 35 on the front side for switching the switching device 1.

[0069] The device as such also has a front side facing away from the busbars 24 and a rear side facing the busbars 24, wherein the front side of the device is essentially formed by the front side 3 of the switching device 1 and the rear side of the device is essentially formed by a rear side of the electronic module 2.

[0070] The switching device 1 has a housing 4 and contact pairs arranged in a longitudinal direction X of the switching device 1 for receiving fuses on the front. The contact pairs are not shown in detail in the figures. The contact pairs are located in the area of ​​the fuse receptacles 18, which are also formed in the longitudinal direction X of the switching device 1. One contact of the contact pair is connected to an input current conductor 15, and the other contact of the contact pair is connected to an outgoing current conductor 25. The outgoing current conductor 25 opens into a connection compartment 19 of the switching device 1.

[0071] The electronic module 2 has a housing 5, 6, 7, 8, wherein the housing 5, 6, 7, 8 has a first housing section 5, a second housing section 6, a third housing section 7, and two cover parts 8. The electronic module 2 also has a sensor component 9 with current transformers 17. By means of the current transformers 17 or the sensor component 9, it is possible to measure the current flowing through the input current conductors 15. The electronic module 2 also has a further processing component 10 for detecting and further processing an output signal from the sensor component 9, as well as a transfer component 11 connected to the sensor component 9 for forwarding the output signal from the sensor component 9 to the further processing component 10.The sensor component 9 is mounted in a storage area of ​​the first housing section 5, the transfer component 11 in a storage area of ​​the second housing section 6, and the further processing component 10 in a storage area of ​​the third housing section 7. The sensor component 9, the transfer component 11, and the further processing component 10 are each designed as separate components, so that the respective component 9, 10, 11 can be handled independently of the other components 9, 10, 11. In the present case, the sensor component 9 is mounted exclusively in the first housing section 5, the transfer component 11 is mounted exclusively in the second housing section 6, and the further processing component 10 is mounted in the third housing section 7 and partially projects into the second housing section 6.

[0072] As in particular the Fig. 5 As can be seen, the switching device 1 has a receiving area 13 on the rear side 12 opposite the front side 3, wherein the first housing section 5 of the electronic module 2 is arranged together with the sensor component 9 in the receiving area 13, in the present case the receiving area 13 completely receives the first housing section 5.

[0073] The second housing section 6 and the third housing section 7 of the electronic module 2, however, protrude in the longitudinal direction X of the switching device 1 on an end face of the switching device 1 opposite the connection space 19.

[0074] In the present case, the electronic module 2 is connected to the switching device 1 from the rear side 12 of the switching device 1, wherein for this purpose the electronic module 2 is displaced in the direction of the arrow 26, thus in the direction of the front side 3 of the switching device 1, with respect to the switching device 1.

[0075] In the connected state, the first housing section 5 is held in the receiving area 13 in a locking manner, wherein for this purpose the electronic module 2 has locking structures 27 in the area of ​​the first housing section 5 which protrude in the direction of the switching device 1 and which, in the connected state, interact with counterstructures formed in the area of ​​the housing 4 of the switching device 1.

[0076] As in particular the Fig. 5 As can be seen, the three input current conductors 15 are set back from the rear side 12 of the switching device 1, whereby side walls of the housing 4 on the rear side 12 protrude from the input current conductors 15. This forms the receiving area 13, which in this case is essentially cuboid-shaped. When the switching device 1 and electronic module 2 are connected to one another, the side walls of the housing 4 of the switching device 1 on the rear side 12 of the switching device 1 are flush with the first housing section 5 and the second housing section 6 of the electronic module 2.

[0077] In the present case, the first housing section 5 and the second housing section 6 are formed by the same component, which, for example, in the Fig. 9 is shown, and the third housing section 7 is detachably connected to the second housing section 6. In the present case, the third housing section 7 is connected to the second housing section 6 by means of two screws, wherein the two screws are accessible from the front side 3. The connecting screws penetrate the third housing section 7 and each engage in a screw dome 28 formed in the region of the second housing section 6.

[0078] As in particular the Fig. 1 As can be seen, the second housing section 6 adjoins the first housing section 5 in the longitudinal direction X of the switching device 1 and the third housing section 7 adjoins the second housing section 6 in the direction of the front side 3, thus opposite to the Z direction.

[0079] As in particular the Fig. 2 , 8 und 9 As can be seen, the first housing section 5 has a smaller width extension, thus an extension in the Y direction, than the second housing section 6 and third housing section 7.

[0080] In the present case, the further processing component 10 is designed as a measuring circuit board. The further processing component 10 is removably mounted in the third housing section 7, wherein the further processing component 10 can be inserted into or pushed out of the third housing section 7 from a side of the third housing section 7 facing the second housing section 6.

[0081] The third housing section 7 has a stop for the further processing component 10, which stop prevents further insertion of the further processing component 10.

[0082] The further processing component 10 designed as a measuring board has a printed circuit board, wherein the printed circuit board has a main extension surface, wherein a normal vector 29 of the main extension surface runs in the transverse direction Y of the switching device 1.

[0083] The further processing component 10 has a plurality of communication interfaces 23 accessible from the front side 3 of the switching device 1, wherein the third housing section 7 has front openings for this purpose.

[0084] The transfer component 11 and the sensor component 9 also each have a printed circuit board, wherein a component side 16 of the printed circuit board faces away from the sensor component 9 of the switching device 1 and a component side of the printed circuit board of the transfer component 11 faces the further processing component 10.

[0085] In this case, the circuit boards of the sensor component 9, the transfer component 11 and the further processing component 10 are each a single-sided circuit board.

[0086] As in particular the Fig. 6 and 10 As can be seen, all components of the sensor component 9, in particular the current transformers 17 and the voltage taps 22, which serve to contact the input current conductors 15, are mechanically connected to the circuit board of the sensor component 9 and can therefore be handled as a unit.

[0087] The sensor component 9 and the transfer component 11 are electrically connected to each other via a flexible cable 30.

[0088] As in particular the Fig. 6 , 8 and 10As can be seen, the two circuit boards of the sensor component 9 and the transfer component 11 are offset from one another in the vertical direction Z. In this case, the circuit board of the sensor component 9 is arranged closer to the front side 3 of the switching device 1 than the circuit board of the transfer component 11.

[0089] The transfer component 11 has a first connecting device (not shown in detail in the figures), wherein in the present case this connecting device is formed by contact surfaces of the circuit board, and the further processing component 10 has a second connecting device 14, wherein in the present case this connecting device 14 is formed by a plurality of spring contacts. The first connecting device and the second connecting device 14 can be electrically coupled to one another to establish an electrical connection between the transfer component 11 and the further processing component 10 by electrically coupling the first connecting device to the second connecting device 14 during the mechanical connection of the second housing section 6 and the transfer component 11 arranged therein to the third housing section 7 and the further processing component 10 arranged therein.In the present case, the connecting device 14 is formed on a side of the further processing component 10 facing the second housing section 6.

[0090] To support the current transformers 17 in the first housing section 5 and thus to support the sensor component 9 in the first housing section 5, the first housing section 5 has three bearing means 21, wherein these bearing means 21 are essentially circular-cylindrical and each pass through a through-opening 20 of the respective current transformer 17 and the circuit board. A copper roller 36 is arranged on the respective bearing means 21 such that the bearing means 21 passes through the copper roller 36. When the device is connected to the current busbars 24, connection screws (not shown in detail) pass through the respective input current conductor 15, the respective current transformer 17, the respective copper roller 36 and the respective bearing means 21 and are screwed to the respective current busbar 24 assigned to the input current conductor 15.

[0091] For the purpose of covering the rear of the sensor component 9 and the interface component 11, the housing 5, 6, 7, 8 of the electronic module 2 has two cover parts 8 on the rear that are detachably connected to the remaining housing 5, 6, 7. The cover parts 8 are connected to the remaining housing, specifically the first housing section 5 and the second housing section 6, by means of separate connecting elements designed as screws. It is entirely conceivable that the screws also serve to fix the position of the circuit board of the sensor component 9 or the circuit board of the interface component 11.

[0092] The third housing section 7 can also be detached from the rest of the device when the switching device 1 and the electronic module 2 are connected to each other, as shown in the Fig. 12 is shown. Release occurs in such a way that, after releasing the connecting means, the third housing section 7 only needs to be moved in the direction of arrow 32, thus opposite to the vertical direction Z. Connection occurs accordingly in the opposite direction.

[0093] In an alternative embodiment, which is described in the Figuren 14 bis 16 As shown, the third housing section 7 must first be moved in the direction of arrow 33, thus in the direction of the front side 3, in order to release the third housing section 7, and then the third housing section 7 must be moved in the direction of arrow 34, thus in the longitudinal direction X. Connection is carried out accordingly in the opposite direction. List of reference symbols

[0094] 1Switching device 2Electronic module 3Front 4Housing 5First housing section 6Second housing section 7Third housing section 8Cover part 9Sensor component 10Further processing component 11Transfer component 12Rear 13Receiving area 14Second connection device 15Input current conductor 16Component side 17Current transformer 18Fuse holder 19Connection compartment 20Through opening 21Bearing means 22Voltage tap 23Interface 24Current busbar 25Outgoing current conductor 26Arrow 27Locking structure 28Screw dome 29Normal vector 30Cable 31Guiding means 32Arrow 33Arrow 34Arrow 35Actuating lever 36Copper roller XLongitudinal direction YTransverse direction ZVertical direction

Claims

1. Device for arrangement on current busbars (24), comprising a switching device (1) and an electronics module (2), wherein the switching device (1) has a front side (3), which is to be averted from the current busbars, a housing (4) and fuse receptacles (18), which are arranged in a longitudinal direction (X) of the switching device (1), for receiving fuses, wherein a contact pair is assigned to the respective fuse receptacle (18), wherein one contact of the contact pair is connected to an input current conductor (15) and the other contact of the contact pair is connected to an outgoing current conductor (25), and wherein the electronics module (2) has a housing (5, 6, 7, 8) and a sensor component (9) for voltage and / or current and / or energy measurement, a further-processing component (10) for detecting and further processing an output signal of the sensor component (9) or a pre-processed output signal of the sensor component (9) and a transfer component (11) for forwarding the output signal of the sensor component (9) to the further-processing component (10) or for preprocessing the output signal of the sensor component (9) and forwarding the pre-processed output signal of the sensor component (9) to the further-processing component (10), wherein the housing (5, 6, 7, 8) of the electronics module (2) has a first housing section (5), a second housing section (6) and a third housing section (7), wherein the sensor component (9) is mounted in the first housing section (5), the transfer component (11) is mounted in the second housing section (6) and the further-processing component (10) is mounted in the third housing section (7), characterized in that the switching device (1) and the electronics module (2) are detachably connected to each other, wherein the first housing section (5) of the electronics module (2) is arranged on a rear side of the switching device (1) facing away from the front side (3) and the second housing section (6) and the third housing section (7) of the electronics module (2) protrude in the longitudinal direction (X) of the switching device (1) in relation to the switching device (1).

2. Device according to Claim 1, wherein the sensor component (9), the transfer component (11) and the further-processing component (10) are each formed as a separate part or the sensor component (9) and the transfer component (11) are realized in one and the same part, wherein this part and the further-processing component (10) form separate parts.

3. Device according to Claim 1 or 2, wherein the switching device (1) has a receiving region (13) on a rear side (12) of the switching device (1), the rear side being situated opposite the front side (3), wherein the first housing section (5) of the electronics module (2) is arranged in the receiving region (13).

4. Device according to any of Claims 1 to 3, wherein the second housing section (6) in the longitudinal direction (X) of the switching device (1) adjoins the first housing section (5) and the third housing section (7) in the direction of the front side (3) adjoins the second housing section (6).

5. Device according to any of Claims 1 to 4, wherein the first housing section (5) and the second housing section (6) are non-detachably connected to each other and / or the third housing section (7) is detachably connected to the second housing section (6).

6. Device according to any of Claims 1 to 5, wherein the transfer component (11) has a first connecting device and the further-processing component (10) has a second connecting device (14), wherein the first connecting device and the second connecting device (14) can be electrically and / or optically coupled to each other, for establishing an electrical and / or optical connection between the transfer component (11) and the further-processing component (10) by electrically and / or optically coupling the first connecting device to the second connecting device (14) when the second housing section (7) and the transfer component (11) arranged therein are mechanically connected to the third housing section (6) and the further-processing component (10) arranged therein.

7. Device according to any of Claims 3 to 6, wherein the input current conductors (15) are spaced from the rear side (12) of the switching device (1) for the purpose of forming the receiving region (13).

8. Device according to any of Claims 1 to 7, wherein the further-processing component (10) and / or the transfer component (11) and / or the sensor component (9) have / has a printed circuit board.

9. Device according to Claim 8, wherein the sensor component (9) has a printed circuit board, wherein all components of the sensor component (9) are mechanically connected to the printed circuit board.

10. Device according to Claim 8 or 9, wherein the sensor component (9) has a printed circuit board, wherein an assembly side (16) of the printed circuit board of the sensor component (9) faces away from the switching device (1), and / or wherein the transfer component (11) has a printed circuit board, wherein an assembly side (16) of the printed circuit board faces the further-processing component (10).

11. Device according to any of Claims 8 to 10, wherein the further-processing component (10) has a printed circuit board, wherein the printed circuit board has a main area of extent, wherein a normal vector (29) of the main area of extent runs in a transverse direction (Y) or substantially in the transverse direction (Y) of the switching device (1).

12. Device according to any of Claims 1 to 11, wherein the further-processing component (10) has a communications interface (23).

13. Device according to any of Claims 1 to 12, wherein the further-processing component (10) is removably mounted in the third housing section (7).

14. Device according to any of Claims 1 to 13, wherein the first housing section (5) is latchingly held in the switching device (1).

15. Device according to any of Claims 1 to 14, wherein the electronics module (2) can be connected to the switching device (1) from the rear side of the switching device (1).

16. Device according to any of Claims 1 to 15, wherein the transfer component (11) and the sensor component (9) are electrically and / or optically connected to each other via a cable.