DE202022105380U1 - Measuring device arrangement for functional testing of electrical lines and vehicle with measuring device arrangement - Google Patents

Abstract

Measuring device arrangement (01) for functional testing on electrical lines, in particular on high-voltage lines, comprising:
- A framework (02) with mounting rails (03) which define a cuboid main housing and divide it into a plurality of module spaces (05);
- Several housing panels (07) which close the main housing, wherein at least one front housing panel (07a) is attached so that it can be opened;
- Several control assemblies (30, 33) which comprise electronic circuit units and/or operating elements and/or display elements and are arranged in a front assembly space (05a), with at least one first control assembly (30) on the inside of the openable front housing panel (07a) attached and can be moved with it for service purposes, and wherein at least one second control assembly (33) is attached to a partition (32), the partition (32) being arranged on the inward-facing side of the front assembly compartment (05a) and having the second control assembly (33) can be pivoted into the installation space for service purposes, which is at least partially occupied by the first control assembly (30) when the front-side housing plate (07a) is closed and is released when the openable front-side housing plate (07a) is opened, in order to move behind the partition (32 ) to make existing assemblies accessible.

Description

The invention relates to a measuring device arrangement for functional testing of electrical lines, in particular medium and high-voltage lines. Such measuring device arrangements have a housing and a wide variety of electrical components, including control assemblies with electronic circuit units. The invention also relates to a vehicle in which such a measuring device arrangement is installed in order to be able to carry out functional tests in situ on electrical lines.

A special field of application of electrical measurement technology relates to troubleshooting or functional testing on high-voltage lines, which are designed for electrical voltages >1 kV and can be laid, for example, as overhead lines or as underground lines. Troubleshooting can be particularly difficult with electrical lines that are laid underground, since the fault is not visible and must therefore be localized as precisely as possible before the ground is opened up to repair the fault. Different components and measuring devices are required for such applications, which, among other things, require appropriate installation space due to the high voltages to be processed. In addition, the functional test / troubleshooting must be carried out regularly at remote, sometimes difficult to reach locations. Corresponding measuring arrangements are therefore usually permanently installed in vehicles, in particular specially equipped small vans. With growing demands on the measuring devices and at the same time limited loading capacity of the vehicles, the problem arises that the measuring device arrangement is becoming too heavy to be installed in conventional small transporters with a permissible total weight of up to 3.5 t. This problem is exacerbated by the desire to ensure high strength of the measuring device arrangement while driving or even in the event of an accident with the vehicle, in order to protect the vehicle occupants in particular, but also the measuring devices. Finally, the desire for low weight and high strength must be combined with the goal of keeping the components of the measuring device arrangement easily accessible for maintenance, repair and service without having to remove the complete arrangement from the vehicle. The measuring device configurations used in practice to date do not meet these requirements, or only do so to a very limited extent.

From the DE 6 930 7580 T2 a frame profile structure for the transmission of electrical signals is known. The framework described therein includes a frame member to provide mechanical support and to carry electrical traces for connection to circuitry. The frame member has a pultrusion that includes an insulating body and reinforcing fibers. A contact block is attachable to one of the frame members and includes conductor contact portions.

In the DE 20 2009 003 651 U1 describes a frame for a test cell. The framework has vertical posts and horizontal cross braces. The crossbars are connected to the posts at their ends. The posts and the cross struts are designed as box profiles which are open to the outside and the cross struts are connected to the front of the post in a spatial grid. The box profiles of the cross struts have head plates on the face side, which are firmly connected to the box profile and form a box element with the box profile. The box elements have passages for lines on the head plates and on a wall of the box elements that is directed towards an interior space of the frame. At fastening points for the box elements, the posts have bushings assigned to the bushings of the head plates for the passage of lines.

the DE 20 2013 007 444 U1 describes a modular electronic system for medium or high voltages. It comprises a cabinet with a number of arrayed slots into which electronic modules are placed. The module includes a housing with a housing wall that has a dielectric material and a field-shaping conductive layer. An electronic device is located in the housing. The field-shaping conductive layer can be electrically connected to a predefined electrical potential.

Based on the prior art, one object of the present invention is to provide a measuring device arrangement for functional testing of electrical lines, in particular high-voltage lines, and a vehicle with such a measuring device arrangement, in which case the weight of the measuring device arrangement is to be reduced in particular, while at the same time maintaining a high level of inherent stability to ensure a high level of safety for the vehicle occupants even in the event of an accident with the vehicle. In addition, despite these requirements, service accessibility to numerous components in the measuring device arrangement should be maintained, even when the arrangement is installed in the vehicle.

This object is achieved by a measuring device arrangement according to appended claim 1 and a vehicle according to claim 14 solved. Particular embodiments of the invention are specified in the dependent claims.

The measuring device arrangement according to the invention for functional testing of electrical lines firstly comprises a frame with mounting rails that define a cuboid main housing and subdivide it into a number of module spaces. Profiles made of steel, aluminum, lightweight alloys or fiber composite materials are preferably suitable as mounting rails, which are preferably connected to one another via connecting elements, angle pieces and the like. Depending on the arrangement of the mounting rails, the module spaces can have the same or different volumes. They are adapted to the units to be recorded. For example, different configurations can be implemented according to customer requirements by arranging inner mounting rails at different positions in the main housing. The main housing is particularly preferably cube-shaped, ie designed with the same edge lengths. The module spaces are preferably arranged in a matrix fashion within the main housing and are positioned, for example, in two horizontal planes and two or more vertical planes. The main body has a front, a back, a top, a bottom and two side faces. When installing the measuring device arrangement in a vehicle, the front side is preferably arranged at the front in the direction of travel and the rear side is arranged at the rear in the direction of travel. Due to the matrix-like basic structure, both high stability and low weight as well as great flexibility in the equipment of the measuring device arrangement and high ease of maintenance are achieved. According to a modified embodiment, mounting rails running diagonally or at an angle are additionally provided in order to further increase the rigidity of the main housing.

Furthermore, the gauge assembly has a plurality of housing panels which are attached to at least one of the outer mounting rails to close the main housing. The housing plates are preferably made of a metallic material, for example aluminum or sheet steel. Likewise, all or some of the housing plates can be made of multi-layer material or plastic. A plurality of housing panels are preferably attached at least to the front side and to the rear side of the main housing, each of which corresponds to the size of an assembly space to be closed off by the panel. Alternatively, a housing plate can also completely or partially cover a number of module spaces on one side of the main housing. The housing panels are preferably releasably secured along at least one edge to one of the outer mounting rails and at least one other edge to one of the inner mounting rails. Thus, individual housing panels can be selectively removed to allow access to the subassembly space behind.

Interface elements for connecting external units are arranged in at least one rear housing panel. In particular, when using the measuring device arrangement, the electrical lines to be examined, high-voltage cables or corresponding supply lines can be connected to these interface elements, as can an external energy supply or further measuring devices or accessories. In modified embodiments, additional interface elements are located on several rear housing panels. It is also possible to provide interface elements on the front housing panels and/or on the other sides of the main housing. However, no interface elements are particularly preferably arranged on the side surfaces and on the top and bottom of the main housing, since these sides are often no longer accessible after installation in a vehicle.

At least one front housing panel is attached so that it can be opened, for example, it can be swung open via a hinge, which can be arranged on one of the outer mounting rails or on other housing parts. However, the openable housing plate can also be detachably attached using screws or other connecting elements. The module space behind this housing plate is therefore particularly easy to access for service purposes. Components can be fastened in or on this housing plate, which can be pivoted or removed with the plate from the associated module space.

In addition, the measuring device arrangement has a plurality of control assemblies, which include electronic circuit units and/or operating elements and/or display elements and are arranged in at least one front assembly space. At least all of the circuit units formed on printed circuit boards are preferably arranged in one or more assembly compartments on the front. At least one first control assembly is attached to the inside of the openable front housing panel and can be removed with it for service purposes. At least one second control module is attached to a partition wall, the partition wall being arranged on the inward side of the front module space and separating the front module space from another module space located behind it. For service purposes, this partition wall can be displaced or pivoted with the second control assembly into that installation space which is at least partially occupied by the first control assembly when the front housing plate is closed and is released when the openable front housing plate is opened. Assemblies located behind the partition wall are thus made accessible. The further module room located behind the front module room and the components positioned there are accessible in this way from the front of the main housing by removing the openable front housing plate with the first control module attached to it, and then removing the partition wall with the second control module attached Control assembly is shifted or pivoted into the front space. Preferably, the openable front panel pivots about a vertical axis while the partition wall pivots about a horizontal axis.

According to a preferred embodiment, the control modules are combined in a control cabinet, which is arranged in the front module space. The control cabinet includes at least the openable front housing panel. The control cabinet is particularly preferably constructed in the form of a subassembly with its own subassembly housing, so that it can be used as a subassembly in the main housing after appropriate assembly of all the control subassemblies it contains. For this purpose, the control cabinet is preferably detachably fastened to free mounting rails of the main housing. In the assembled state, the control cabinet then forms part of the main housing and closes this at least in sections on the front.

In a particularly preferred manner, all of the module spaces on the front are each separated by a partition from the additional module spaces located behind them, with not all of these partitions having to be designed to be pivotable. The partitions are preferably part of the control cabinet. Thus, within the main housing, a separate partial housing is arranged at the front, which preferably encloses all circuit units formed on printed circuit boards and thus encapsulates them from the components carrying high voltage. To ensure or improve electromagnetic compatibility (EMC), the metal housing parts of the control cabinet are electrically conductively connected to one another over a large area (not just at certain points). The electrical isolation is advantageous in order to protect the sensitive control electronics from strong electromagnetic impulses from the installation space with high-voltage components.

According to a further developed embodiment of the measuring device arrangement, there are several fastening elements, for example in the form of threaded holes, on the back of the main housing. An additional module can preferably be attached to these fastening elements outside of the main housing. In this way, for example, a measuring device arrangement that was initially only equipped for single-phase operation can be expanded to enable three-phase operation. The auxiliary assembly is preferably housed in its own auxiliary housing which does not extend laterally beyond the main housing so as not to increase the overall width of the assembly.

The vehicle according to the invention for mobile functional testing of electrical lines, in particular high-voltage lines, has, in addition to the usual vehicle-typical elements, a transport space and a measuring device arrangement arranged there, which corresponds to the measuring device arrangement according to the invention described here. The measuring device arrangement is firmly but detachably connected to the vehicle, so that there is no risk of it slipping inside the vehicle even while driving and in the event of strong acceleration forces. The vehicle is preferably a van with a permissible total mass of up to 3.5 t, since such vehicles can usually be driven by people who only have a driver's license for a car.

• 1 eine perspektivische Darstellung einer erfindungsgemäßen Messgeräteanordnung mit geschlossenen frontseitigen Gehäuseplatten;
• 2 eine frontseitige Zusammenbauzeichnung der Messgeräteanordnung;
• 3 eine Zusammenbauzeichnung der Messgeräteanordnung von oben betrachtet;
• 4 eine Zusammenbauzeichnung der Messgeräteanordnung von der Seite betrachtet;
• 5 eine Seitenansicht der Messgeräteanordnung einer frontseitigen, aufgeschwenkten Gehäuseplatte;
• 6 eine Prinzipskizze eines erfindungsgemäßen Fahrzeugs mit der Messgeräteanordnung.

Numerous other advantages and details of the invention are described below using a preferred embodiment, with reference to the drawing. Show it:

• 1 a perspective view of a measuring device arrangement according to the invention with closed front housing plates;
• 2 a front assembly drawing of the meter assembly;
• 3 an assembly drawing of the meter assembly viewed from above;
• 4 an assembly drawing of the meter assembly viewed from the side;
• 5 a side view of the measuring device arrangement of a front, pivoted housing plate;
• 6 a schematic diagram of a vehicle according to the invention with the measuring device arrangement.

In 1 an exemplary embodiment of a measuring device arrangement 01 according to the invention is shown in a perspective view. The measuring device arrangement 01 is suitable at least for Functional testing on electrical lines, preferably on high-voltage lines with operating voltages >1 kV, although this does not exclude other fields of application, such as leak detection on long pipes. The measuring device arrangement 01 has a matrix-like framework 02 with mounting rails 03, with outer mounting rails 03a defining a cuboid main housing, inner mounting rails 03b dividing the main housing into a plurality of module spaces 05. In the example shown, the main housing has the shape of a cube, in which a total of eight module spaces 05 are distributed over two horizontal levels. In the upper level (relative to the position when used as intended) there are two front assembly compartments 05a ( 2 ) are provided which occupy about 1/4 of the depth of the main body and about 2/3 of the height of the main body. The module spaces 05a on the front are combined to form a control cabinet 21, which forms an independent module. In the lower level, two front module spaces are provided, which are not filled in this embodiment, take up about 1/3 of the depth of the main housing and about 1/3 of the height of the main housing.

Several housing plates 07, here preferably made of aluminum Dibond, are detachably attached to the mounting rails 03 and/or other housing parts in order to close the main housing. In many cases, the housing panels are also detachably fastened to the inner mounting rails 03b. Depending on the design, module spaces that are not filled can remain unlocked in order to be able to quickly insert new modules there, depending on the application. In this case, the housing plates can be fastened to the assemblies, as is also preferably the case with the control cabinet 21, which is used as an insert in the respective assembly space of the main housing. Preferably, all housing panels 07 can be detached in order to allow access to all module spaces 05. In 1 not all housing panels are shown in order to allow a look inside the main housing as well.

A plurality of interface elements 08 for connecting external units are arranged in at least one rear housing panel 07b ( 4 ). In particular, the lines to be tested are connected there directly or via coupling cables. Two front-side housing plates 07a are attached so that they can be opened (for example, they can be pivoted open via respective hinges or detachable in some other way). In an embodiment that is not shown, the hinges are located on the right and left on the outer sides of the control cabinet 21, so that the two pivotable housing plates can be opened outwards like wings. When closed, the housing plates 07a that can be opened are electrically conductively connected to the housing over a large area via special EMC seals.

Depending on the configuration, which can be customized, there are different assemblies in all or only some of the assembly rooms 05, which are required for different measurement tasks. So are at the in 1 shown embodiment in the rear module space in the upper level three high-voltage switches 31 ( 3 ), which are attached to an upper housing plate 07c via bayonet catches 09. This allows the high-voltage switches to be replaced quickly and easily in the event of service, even if the measuring device arrangement is installed in a vehicle where the upper housing plates are difficult to access. The components carrying high voltage during measurement are preferably arranged in the assembly rooms in such a way that the cable connections between such components are kept as short as possible. This also reduces the cost of materials and contributes to weight reduction.

2 shows a front view of the measuring device arrangement, individual components being shown in the manner of an assembly drawing in a state that has not yet been inserted into the rack 02. In the illustrated embodiment, the two front module spaces 05a in the upper level are used exclusively to accommodate medium and low-voltage components that are combined in the control cabinet 21 . At the front, the control cabinet 21 is closed by the front housing plates 07a, the two upper front housing plates 07a being attached to the control cabinet 21 or its mounting rails so that they can be opened via fastening elements or hinges 22. Operating elements and/or display elements 23 are fitted in the front housing plates 07a. In the operating state, a user can take a seat in front of the main housing in order to carry out the individual measurement routines. The user can thus reach and see all the essential operating and display elements from this position.

First control assemblies 30 ( 5 ) attached, which are moved outwards when the openable front housing plate 07a is pivoted open or opened, thereby freeing up space inside.

3 shows the measuring device arrangement in a view from above, with individual components in the form of an assembly drawing in are shown in a state that has not yet been inserted into the frame 02. The control cabinet 21 with the front housing plates 07a can be clearly seen here. The rear of the control cabinet is formed in the area parallel to the front housing plates 07a by a partition wall 32, which has one (or more) second control assembly 33 ( 5 ) carries.

4 shows the measuring device arrangement in a side view, with individual assemblies being shown in the manner of an assembly drawing in a state that has not yet been inserted into the frame 02. It can be seen here, for example, that a high-voltage discharge device 41 is installed in a rear module space 05b on the lower level. This has the advantage that the lines carrying high voltage to the high-voltage switches 31 arranged directly above them are kept short. Furthermore, free mounting rails 03c can be seen, which are shaped like a beam with a free end in order to accommodate the control cabinet 21 during assembly. As a result, the previously largely completed control cabinet becomes part of the main housing. Only the electrical cable connections then have to be made, preferably via electrical plug-in contacts.

5 shows a simplified side view of the measuring device arrangement, with the control cabinet 21 arranged in the front assembly compartment being shown in section. A lower openable front housing panel 07a is shown in a pivoted open position. An openable top panel is detached from the control cabinet (not shown). The first control assembly 30 is located on the inside of the front lower housing plate 07a. Another first control assembly can be attached to the inside of the upper, openable housing plate (not shown). The partition wall 32 is also shown in a folded-forward position, so that the second control assembly 33 is pivoted into the installation space for service purposes, which is at least partially occupied by the first control assemblies 30 when the front-side housing plate 07a is closed and is released when the front-side housing plates 07a are opened. In addition to better accessibility to the second control assembly 33, this also has the advantage that the assemblies located behind the partition wall 32 are made accessible.

6 shows a schematic diagram of a vehicle 60 according to the invention in a view from above, in which the measuring device arrangement 01 is installed in one of the previously described or comparable embodiments. In this embodiment, the vehicle is a van that has a driver's cab 61 in the front area and a transport space 62 in the rear area. The measuring device arrangement 01 is installed in the transport space 62 in such a way that an operator has a workplace 63 on the front side of the measuring device arrangement. Rear doors 64 that can be opened are also provided, via which access to the rear of the measuring device arrangement 01 is possible in order to connect the electrical lines to be tested there.

Reference List

01

meter arrangement

02

frame

03

mounting rails

03a

outer mounting rails

03b

inner mounting rails

03c

free mounting rails

04

-

05

assembly rooms

05a

front module compartment

05b

rear module space

06

-

07

housing panels

07a

front panel

07b

rear housing panel

07c

upper housing plate

08

interface elements

09

bayonet locks

21

control cabinet

22

Fasteners / Hinges

23

Operating elements / display elements

30

first control assembly

31

high voltage switch

32

partition wall

33

second control assembly

41

High-voltage discharge device

60

vehicle

61

driver's cabin

62

transport space

63

Workplace for operators

64

rear doors

QUOTES INCLUDED IN DESCRIPTION

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

Patent Literature Cited

• DE 69307580 T2 [0003]
• DE 202009003651 U1 [0004]
• DE 202013007444 U1 [0005]

Claims (15)

Measuring device arrangement (01) for functional testing on electrical lines, in particular on high-voltage lines, comprising: - A framework (02) with mounting rails (03) which define a cuboid main housing and divide it into a plurality of module spaces (05); - Several housing panels (07) which close the main housing, wherein at least one front housing panel (07a) is attached so that it can be opened; - Several control assemblies (30, 33) which comprise electronic circuit units and/or operating elements and/or display elements and are arranged in a front assembly space (05a), with at least one first control assembly (30) on the inside of the openable front housing panel (07a) attached and can be moved with it for service purposes, and wherein at least one second control assembly (33) is attached to a partition (32), the partition (32) being arranged on the inward-facing side of the front assembly compartment (05a) and having the second control assembly (33) can be pivoted into the installation space for service purposes, which is at least partially occupied by the first control assembly (30) when the front-side housing plate (07a) is closed and is released when the openable front-side housing plate (07a) is opened, in order to move behind the partition (32 ) to make existing assemblies accessible. Measuring device arrangement (01) according to claim 1 , characterized in that the control assemblies (30, 33) are combined in a control cabinet (21) which is arranged in the front assembly compartment (05a), the control cabinet (21) comprising at least the openable front housing panel (07a), which is preferably free mounting rails (03c) is detachably attached. Measuring device arrangement (01) according to claim 1 or 2 , characterized in that the main body is cube-shaped. Measuring device arrangement (01) according to one of Claims 1 until 3 , characterized in that at least two housing plates (07) are detachably fastened to the front side and the rear side of the main housing. Measuring device arrangement (01) according to one of Claims 1 until 4 , characterized in that interface elements (08) for connecting external units are arranged in at least one rear housing plate (07b). Measuring device arrangement (01) according to claim 2 , characterized in that two openable front housing plates (07a) are provided, on the inside of which first control assemblies (30) are attached and which for service purposes can be pivoted outwards in a wing-like manner or can be completely removed, and in that second control assemblies (33) each are attached to partitions ( 32), the partitions (32) being arranged on the inward side of the control cabinet (21) and being pivotable with the second control assemblies (33) for service purposes into the respective installation space, which when the front housing panels (07a) are closed is at least partially taken up by the first control assemblies (30) and released when the front housing panels (07a) are opened, in order to make assemblies located behind the partitions (32) accessible. Measuring device arrangement (01) according to one of Claims 1 until 6 , characterized in that the components in the module spaces (05) are arranged in such a way that the length of high-voltage lines is minimized. Measuring device arrangement (01) according to one of Claims 1 until 7 , characterized in that fastening elements are arranged on the back of the main housing, to which additional assemblies can be attached outside of the main housing. Measuring device arrangement (01) according to one of Claims 1 until 8th , characterized in that the outer and/or inner mounting rails (03a, 03b) are made of steel or lightweight material, in particular aluminum alloy or fiber composite material. Measuring device arrangement (01) according to one of Claims 1 until 9 , characterized in that the openable front housing panel (07a) pivots about a vertical axis and the partition wall (32) lying parallel thereto pivots about a horizontal axis. Measuring device arrangement (01) according to claim 2 or 6 , characterized in that a plurality of front assembly spaces (05a) are formed in the main body to accommodate the control cabinet (21). Measuring device arrangement (01) according to one of claims 2 , 6 or 11 , characterized in that the front housing plate (07a) via a hinge (22) is attached to the control cabinet (21) so that it can be swung open. Measuring device arrangement (01) according to one of Claims 1 until 12 , characterized in that at least one shielding wall connected to electrical ground potential is arranged between adjacent assembly spaces (05) in order to electromagnetically shield these adjacent assembly spaces (05) from one another. Vehicle (60) for the mobile function test on electrical lines, wherein in a transport space of the vehicle a measuring device arrangement (01) according to one of Claims 1 until 13 is installed. vehicle (60) after Claim 14 , characterized in that it is a transporter with a gross vehicle weight of up to 3.5 t.

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