Switchgear assembly

Abstract

The present invention relates to a switchgear cabinet, an instrument housing, and an assembly formed by the two, wherein the wall of the switchgear cabinet can selectively close or open an opening in the instrument housing.

Description

Technical Field

[0001] The present invention relates to a switchgear cabinet for accommodating an electrical device, which is used for installation together with an instrument housing. Background Art

[0002] The electrical equipment (controllers, power supplies, protectors, etc.) of instruments or machines is usually arranged in a housing. Here, a "housing" refers to a device that at least partially, preferably completely, encloses an internal space to protect this space from external influences. This protection may involve mechanical effects as well as the intrusion of solids, liquids or gases. Whether a housing is suitable for the respective desired protection can be determined by the so-called housing protection type. For example, an X-ray inspection instrument with an IP69K housing protection class provides particularly good protection against external influences.

[0003] The housings for machines and instruments will hereinafter be referred to simply as instrument housings. They generally have an access restriction mechanism as protection for the operator. This will ensure that live parts cannot be accidentally touched or come into contact with liquids and dirt. Generally, instrument housings have a housing opening that can be closed by a cover, hood or housing door, and through the housing opening, the inner chamber of the instrument housing and the electrical components located therein can be reached. The instrument housing should be sealed as tightly as possible on all sides, and any possible openings must be arranged and protected so that dangerous conductive parts cannot be accessed from the outside.

[0004] Some instruments, such as X-ray inspection instruments, operate with a fluid (a flowable medium such as air / compressed air, hydraulic oil or other liquids). The fluid can be used as a lubricant or especially as a coolant to cool the X-ray source. Here, great care must be taken inside the instrument housing to avoid the fluid coming into contact with live parts, in order to protect the operator or prevent short circuits or fires. Usually, an attempt is made to arrange the liquid circuit in a section (compartment) of the housing that is strictly (sealed) isolated from the electrical system. Here, legal regulations or standards that have to be complied with separately may vary from country to country.

[0005] It is conceivable that the requirements in the country where the user is located are more stringent than those in the country where the manufacturer is located. Therefore, for example, it is still allowed to arrange the liquid circuit and the electrical equipment in a single housing at the manufacturer, while in the user's country, the instrument can only operate when the electrical equipment is installed in a separate switchgear cabinet in a sealed and isolated manner. Usually, the higher working safety required for the instrument is evaluated and certified by a testing organization in a testing laboratory. An instrument without the corresponding certificate will then not be accepted by the user or the corresponding legislator.

[0006] If higher requirements already exist during the development or manufacture of the instrument, or if they only arise subsequently, for example due to changed legal requirements or new recognized standards or within the scope of a conversion or extension, appropriate measures must be taken separately to meet the new requirements. Given the instrument configuration to date, the improvement or modification of the instrument should be achieved as simply and inexpensively as possible here. Summary of the Invention

[0007] Accordingly, the object of the present invention is to provide an inexpensive housing protection concept for electrical equipment that is modularly expandable and allows for an adjustable protection level and simple subsequent certification. This object is achieved by a switchgear cabinet according to claim 1, an instrument housing according to claim 3, or a combination according to claim 5. Other advantageous embodiments result from the dependent claims.

[0008] The present invention starts from the idea of protecting the electrical equipment present in the instrument housing from possible contact with fluids. For this purpose, the electrical equipment can be installed in a spatially separated area within the instrument housing. According to the invention, the desired protection is further enhanced in that the electrical equipment is substantially or completely separated from the instrument housing and installed in a separate switchgear cabinet. In a particularly practical implementation of the inventive concept, the switchgear cabinet has a dual function here, since on the one hand it seals the electrical equipment arranged in its inner chamber relative to the instrument housing and on the other hand it simultaneously closes the instrument housing.

[0009] To accommodate the electrical equipment, the switchgear cabinet of the present invention has an inner chamber of the switchgear cabinet that is to be demarcated or sealed relative to the environment, where the demarcation includes at least one wall. Here, it can be, for example, the rear wall of the switchgear cabinet, which is preferably flat. The wall is preferably immovable relative to the switchgear cabinet or the inner chamber of the switchgear cabinet. It can be fixedly connected to the switchgear frame or other parts of the switchgear housing. According to the invention, the switchgear cabinet is designed to close a housing opening in the instrument housing adjacent to the switchgear cabinet with this wall. The housing opening can be provided, for example, on the back of the instrument housing to ensure access to the interior of the housing. With the cabinet according to the invention, it is particularly easy here to provide the electrical equipment (also retrospectively) with a space separated from the instrument housing in order to be able to meet higher safety and certification requirements or the required type of housing protection.

[0010] For example, the following situation can be envisaged: In an X-ray examination apparatus, a hose, a pump or other infusion components and pipelines are first installed together with electrical equipment in an instrument housing. However, due to special safety requirements and / or in order to obtain a special certificate, for some users, it is necessary to remove the electrical equipment partially or completely from the instrument housing and, for example, arrange it in a sealed isolation from the instrument housing. The switchgear cabinet according to the present invention, on the one hand, allows the reception of electrical equipment from the instrument housing, and on the other hand, closes the above-mentioned housing opening leading to the instrument housing with its wall, and this housing opening allows access to the components remaining in the instrument housing after removing this wall or the switchgear cabinet. Thus, the switchgear cabinet forms a modular extension of the instrument housing.

[0011] Thereby, the modification and subsequent handling of the X-ray examination apparatus become particularly easy. The above-mentioned housing door that closes the housing opening before modification is replaced by the wall of the switchgear cabinet according to the present invention, and this switchgear cabinet can rotate or move relative to the housing opening so as to selectively allow or reliably prevent entry into the housing through the housing opening. In the open position where the switchgear cabinet wall is removed from the housing opening, the components remaining in the instrument housing can be reached, for example, for installation, maintenance or repair work. In the closed position where the switchgear cabinet wall (preferably sealed) closes the housing opening at this time, this wall causes the desired separation between the components in the instrument housing and the electrical equipment now arranged in the switchgear cabinet. According to the present invention, this wall fulfills a dual function here, because it not only seals or separates the inner chamber of the housing, but also seals or separates the inner chamber of the switchgear cabinet.

[0012] The above-mentioned modification of the instrument (for example, in order to remove the electrical equipment from the original instrument housing) or generally expanding the instrument housing in a modular form can thus be carried out so simply that the housing door is removed and instead a switchgear cabinet according to the present invention is provided, which houses the electrical components to be removed from the instrument housing and is at the same time designed to tightly close the housing opening in the closed position instead of the housing door. The switchgear cabinet is thus in place as an expansion module particularly close to the instrument housing, and there is no need for an overly long electrical connection between the switchgear cabinet and the instrument housing.

[0013] At the same time, the wall of the switchgear cabinet that separates the inner chamber of the instrument housing from the inner chamber of the switchgear cabinet has a suitable cable passing mechanism to allow electrical connection from the switchgear cabinet to the instrument housing. Wiring outside the housing assembly composed of the instrument housing and the switchgear cabinet is not required for installation or modification. Appropriately, the through holes and contact areas between the wall and the instrument housing are sealed, so that higher safety requirements are met, and for example, it is prohibited for dirt or dust or liquid or gas to enter the adjacent switchgear cabinet chamber from the instrument housing through the wall.

[0014] The combination of an instrument housing and a switchgear housing according to the invention is characterized in that the switchgear itself can remain closed even when it moves relative to the instrument housing, for example to open the housing opening. The desired protection for the components arranged in the switchgear is obtained, regardless of whether the switchgear is arranged in the closed position or the open position.

[0015] According to an advantageous embodiment of the invention, at least one electrical connection between the switchgear and the instrument housing is established by a manually separable plug connection. Thereby, the switchgear or its electrical equipment can be easily separated from the instrument housing, for example to enable maintenance or repair work to be carried out. In an alternative embodiment, it is provided that the electrical connection is automatically established when in the closed position and is automatically separated when the switchgear moves to the open position. This can be accomplished by means of a suitable two-piece, preferably complementary, plug connection, the components of which are arranged on the instrument housing on the one hand and on the switchgear on the other hand, and which cooperate with each other when in the closed position.

[0016] Preferably, the switchgear of the invention is designed to close and seal the housing opening of the instrument housing, in particular to prevent the transfer of gases and liquids. This can be achieved in such a way that the switchgear wall closing the housing opening has means suitable for achieving a seal. Thus, the wall can for example have a specific profile, seal or fitting designed to cooperate with the instrument housing in the region of the housing opening in the closed position. But it is also conceivable to have clamping elements on the switchgear (next to the wall), which can cooperate with suitable clamping elements on the instrument housing to move the switchgear wall towards the housing opening in the closed position and clamp and / or lock it.

[0017] The switchgear according to the invention can be designed in different ways to move its wall from the closed position closing the housing opening to the open position releasing the housing opening and back. Thus, the cabinet can for example rotate about a preferably vertical or horizontal axis of rotation, where the cabinet wall closes the housing opening in one rotational position and opens the housing opening in another rotational position. The cabinet can for this purpose be continuously or detachably mounted on the instrument housing by means of hinges. Or, the cabinet can have a mechanism by means of which its wall can be moved parallel to the wall in front of or away from the housing opening, like a sliding door. For example, the cabinet can have or use guide rails (preferably with end stops), which allow or control the movement relative to the instrument housing or the housing opening. Similar guiding mechanisms can also be provided to move the cabinet controllably towards or away from the housing opening perpendicular to the housing opening.

[0018] The invention also relates to an instrument housing of the aforementioned type, which is designed to close its housing opening by means of the wall of the switchgear cabinet according to the invention described above. The instrument housing can be adapted thereto, for example, because the housing opening can alternatively be closed either by means of a housing door provided for the instrument housing or by the wall of the switchgear cabinet according to the invention. Or the instrument housing can have a mechanism for purposefully cooperating with the wall of the switchgear cabinet according to the invention in order to be able to assume the closed position. The instrument housing can also be adapted, by means of a suitable fitting, to fix the switchgear cabinet according to the invention or its rear wall to the instrument housing in the closed position.

[0019] The assembly according to the invention comprises an instrument housing and at least one switchgear cabinet of the aforementioned type, and is characterized in that the instrument housing and the switchgear cabinet are designed to interact with each other such that the wall of the switchgear cabinet can purposefully (preferably in a sealed manner) close the housing opening. The switchgear cabinet can be mounted on the instrument housing by means of hinges such that it is rotatable relative to the instrument housing in order to alternatively open or close the housing opening. It is also conceivable to have guide rails or other guiding mechanisms which control the relative movement between the switchgear cabinet and the instrument housing between the open position and the closed position.

[0020] The switchgear cabinet according to the invention can have a switchgear cabinet opening on one side (preferably the side opposite the wall), which can generally be closed by a switchgear cabinet door. Through this door, access to the interior of the switchgear cabinet is possible, and unauthorized access to the switchgear cabinet is blocked when the switchgear cabinet door is closed. Preferably, the wall of the switchgear cabinet closing the housing opening forms its rear side, while the switchgear cabinet door is opposite to this wall and forms the front side of the switchgear cabinet.

[0021] The concept of the modular extended instrument housing according to the invention can also be extended to two switchgear cabinets. Thus, a switchgear cabinet door of a first switchgear cabinet can be replaced by the wall or rear wall of a second switchgear cabinet, which is positioned in front of the first switchgear cabinet instead of the switchgear cabinet door of the first switchgear cabinet in order to close it. Thus, a switchgear cabinet or a combination of an instrument housing according to the invention and the associated switchgear cabinet is further extended in a modular form or in a cascaded manner. In the case where such a combination has two successively adjacent switchgear cabinets, for example arranged one behind the other, the (rear) wall of one (front) switchgear cabinet closes the (front) switchgear cabinet opening of the adjacent other (rear) switchgear cabinet, and the switchgear cabinet door of the rear switchgear cabinet can then be dispensed with.

[0022] If the sealing of two such switchgear cabinets arranged one behind the other is carried out in a sealed manner by means of the wall located between them, i.e. in a substantially gas- and liquid-tight manner, it is also conceivable to arrange in one switchgear cabinet components which are acted upon by a liquid or a gas, while the adjacent switchgear cabinet houses electrically separated equipment, similar to that in the above-described combination "instrument housing - switchgear cabinet".

[0023] According to an advantageous embodiment of the assembly consisting of an instrument housing and a switch cabinet according to the invention, it is provided that the switch cabinet has a switch cabinet door for closing the switch cabinet opening. The switch cabinet opening or the associated switch cabinet door is preferably opposed to the switch cabinet wall, so that this wall forms the rear wall of the switch cabinet, and the switch cabinet door closes the switch cabinet opening on the front side of the switch cabinet. In this embodiment, the instrument housing or its housing opening is designed to use its switch cabinet door to close the housing opening of the instrument housing instead of the wall of the switch cabinet to be removed, and the door "matches" the two openings. For example, it can be arranged such that the switch cabinet door can be optionally used for both the switch cabinet opening and the housing opening:

[0024] a) The geometric dimensions of the two openings are substantially the same, and / or

[0025] b) The fittings for arranging the door at the two openings are the same, and / or

[0026] c) The door is provided with different fixing elements, several of which can be used to fix the door to the switch cabinet opening, and several others can be used to fix the door to the housing opening.

[0027] The above-mentioned dual usability of the door simplifies the modular expansion or reduction of one or more (preferably identical) switch cabinets in the assembly according to the invention. If the instrument housing of an X-ray inspection device should be initially expanded by a switch cabinet, the door that was previously used to close the housing opening of the X-ray inspection device is relocated to the front side of the switch cabinet to be additionally provided, in order to close the switch cabinet opening there. Instead, the housing opening of the X-ray inspection device is closed by the wall of the added switch cabinet according to the method of the invention. When adding other switch cabinets, the door is transferred to the switch cabinet opening of the foremost switch cabinet in a corresponding manner, and the switch cabinet openings located between the individual switch cabinets are closed by the wall of the next switch cabinet arranged in front of them.

[0028] In the reverse manner, one or more of the switch cabinets can be removed from an assembly according to the invention having an instrument housing and one or more switch cabinets arranged in front of it, wherein the switch cabinet door can be arranged at the switch cabinet opening that is then exposed (when at least one switch cabinet remains in the assembly) or at the housing opening (when only the instrument housing remains after the modification).

[0029] This embodiment with a door adapted to both the housing opening and the switch cabinet opening advantageously reduces the inventory costs and the number of parts to be prepared, since the door, its sealing and the fittings are suitable for both applications.

[0030] A combination according to the invention, consisting of an instrument housing and at least one cooperating switch cabinet, is preferably designed such that the switch cabinet can be locked to the housing in the closed position, i.e., when its wall closes the housing opening, by means of a suitable locking element. The locking mechanism can also include a key. Here, it is also the switch cabinet key that can lock the switch cabinet door. A plurality of adjacent switch cabinets, each closing an opening of an adjacent switch cabinet in the above-described manner, can also be locked to each other by means of such a switch cabinet key. Thus, in practice, with one key, it is possible to lock the switch cabinet door of the frontmost switch cabinet, as well as, for example, two adjacent switch cabinets and a switch cabinet covering the housing opening of the instrument housing. Alternatively, different keys or access control mechanisms can be provided, which are associated with various different access rights, so that, for example, unlocking or accessing the housing opening requires a different key than unlocking or accessing the switch cabinet opening.

[0031] In the case of a combination having an instrument housing and one or more switch cabinets, the weight of the switch cabinet should be reliably supported. For this purpose, the switch cabinet can, for example, be provided with its own feet or rollers so that it can stand upright on the ground and move or be displaced relative to the instrument housing or other switch cabinets. It is also conceivable that a switch cabinet is suspended from the instrument housing or an adjacent switch cabinet and can rotate relative to it like a door, with its weight being supported by the adjacent housing. The entire (connected) combination is then, for example, easier to move for changing the installation location than the instrument housing together with a plurality of individually placed switch cabinets. However, the instrument housing should then be designed with its rollers or feet such that it is stably placed together with the switch cabinets it supports, even when one or more switch cabinets are placed in the open position.

[0032] BRIEF DESCRIPTION OF THE DRAWINGS Hereinafter, the present invention will be described in detail in connection with two embodiments, wherein:

[0033] Figure 1 and Figure 2 shows the combination according to the invention in a first perspective view,

[0034] Figure 3 and Figure 4 shows the combination according to Figure 1 from another perspective,

[0035] Figure 5 shows a combination having a plurality of switch cabinets. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0036] Figure 1 An X-ray inspection apparatus R is shown in a simplified perspective view, with its instrument housing G standing on the ground, which is not shown in detail. The instrument housing G has an inner chamber I in the housing (see Figure 2) houses components of the X-ray inspection apparatus R that are not shown in detail, which may include, for example, components that are subjected to the action of a coolant, such as an X-ray tube, a refrigerator, a dehumidifier, a radiator, and the associated rigid or flexible tubes. In the depth direction Z, the switchgear cabinet S is adjacent to the instrument housing G. The switchgear cabinet S surrounds the switchgear inner chamber M (see Figure 3 ), which is provided for housing electrical equipment that is not shown in detail and is required for the operation of the X-ray inspection apparatus R. To meet special safety requirements, the inner chamber M of the switchgear cabinet S is separated from the inner chamber I of the housing of the X-ray inspection apparatus R in a sealed manner. As Figure 2 shown, the switchgear cabinet S includes a wall W that forms its rear wall.

[0037] On the front side facing away from the wall W and accessible to the operator, the switchgear cabinet S is closed by a switchgear door T, which is shown in Figure 2 and Figure 3 in a slightly open position as shown and in Figure 4 in a closed position as shown.

[0038] In particular, as shown in another perspective view such as Figure 3 , the instrument housing G has a housing opening O G on its back side facing the switchgear cabinet S, through which the inner chamber I of the housing can be accessed. To enclose the housing opening O G and thus the inner chamber I of the housing relative to the environment, the switchgear cabinet S is rotatable relative to the instrument housing G about a vertical rotation axis A between an open position S o and a closed position S as shown in Figure 4 x . In the closed position, the wall W of the switchgear cabinet completely seals the housing opening O G , so that, for example, a liquid or gaseous coolant cannot enter the environment, especially the switchgear cabinet S, via the housing opening O G . This sealing is assisted by a seal D provided at the edge of the housing opening O G provided in the instrument housing and surrounding the opening, which is subjected to the action of the wall W of the switchgear cabinet S in the closed position.

[0039] In Figure 2 and Figure 3 the open position S shown in O , the inner chamber I of the housing of the X-ray inspection apparatus R is accessible (the open position S shown in O is only an example). Although it also ensures access to the inner chamber I of the housing at the small opening angle shown, this access can be improved by further rotating the switchgear cabinet S away from the housing opening. Depending on the design of the connection of the switchgear cabinet S to the instrument housing G in the region of the rotation axis A, the switchgear cabinet S can also be rotated more than 90° from the closed position to allow almost unobstructed access to the interior I of the housing).

[0040] ​Figure 3 It is also shown that the switchgear cabinet S has a switchgear cabinet opening O S , which leads into the inner chamber M of the switchgear cabinet. The switchgear cabinet opening is opposite to the wall W of the switchgear cabinet and can be closed by the switchgear cabinet door T. For this purpose, the switchgear cabinet door T is arranged on the frame of the switchgear cabinet S in such a way that it can rotate relative to the frame of the switchgear cabinet S about a rotation axis A' parallel to the rotation axis A. The two rotation axes A, A' are located on the same side of the assembly here, so that (when looking at the assembly from above) both the switchgear cabinet S and its switchgear cabinet door T can be rotated counterclockwise to open their respective openings O G , O S . However, it is also possible, for example, to arrange the rotation axes alternately offset on one side and the other side of the assembly, so that the opening movements are alternately clockwise and counterclockwise.

[0041] The housing opening O of the X-ray inspection device R G has the same dimensions as the switchgear cabinet opening. At the same time, the switchgear cabinet door T is designed to be directly fixed not only to the switchgear cabinet frame but also to the instrument housing G instead, so that when the switchgear cabinet S can be dispensed with, instead of the wall W of the switchgear cabinet S, the switchgear cabinet door T that can be directly adjusted from the switchgear cabinet S to the instrument housing can also be used to close the housing opening O G . The housing opening O G and the switchgear cabinet opening O S are designed to be the same for this purpose. The switchgear cabinet door can also be referred to as a housing door in this case, because it can selectively close the instrument housing G or the switchgear cabinet S depending on the installation. Looking at it the other way around, after the switchgear cabinet S is arranged in the middle, the housing door that previously covered the housing opening O G can instead also be adjusted to the front of the switchgear cabinet S in order to selectively close or open the switchgear cabinet opening O S there.

[0042] It can be clearly seen from Figures 1-4 that the instrument housing G can be simply modularly expanded or reduced by means of the switchgear cabinet S. The X-ray inspection device R, which is initially designed without the supplementary switchgear cabinet S, can be easily retrofitted by arranging the switchgear cabinet S in the manner shown, so that, for example, certain components are removed from the inner chamber I of the housing of the X-ray inspection device R and moved into the adjacent switchgear cabinet S, thereby being separated from the inner chamber of the housing. Instead of providing an independent switchgear cabinet to be installed separately for this purpose, the switchgear cabinet S is arranged on the instrument housing according to the invention in such a way that in the closed position, its wall W separates the inner chamber I of the housing from the inner chamber M of the switchgear cabinet. The wall W then fulfills a dual function, because it seals or separates both the inner chamber of the housing and the inner chamber of the switchgear cabinet.

[0043] Figure 5An improved version of the concept on which the present invention is based is shown in a simplified illustration. The instrument housing G is extended by a switchgear cabinet S in the manner already described. The combination formed by the instrument housing G and the switchgear cabinet S is supplemented by two further switchgear cabinets S 1 and S 2 . The switchgear cabinet S closes the housing opening O of the instrument housing G with its wall W in accordance with the method of the present invention G (where the covered opening or wall is not visible in Figure 5 ). The next switchgear cabinet S to be added 1 closes the switchgear cabinet opening of the switchgear cabinet S with its rear wall in accordance with the method of the present invention, while the switchgear cabinet S to be added 2 closes the switchgear cabinet opening of the first switchgear cabinet S 1 again. The switchgear cabinet S 2 is closed on its front side by the switchgear door T. All the switchgear cabinets can be rotated relative to one another about a vertical axis of rotation (not shown in detail), so that the switchgear cabinet interior or the housing interior of the instrument housing I is accessible, which is achieved in the following way: the switchgear cabinet arranged in front of the relevant opening is swung open laterally.

[0044] List of reference numerals

[0045] A, A' Axis of rotation

[0046] D Sealing

[0047] G Instrument housing

[0048] I Housing interior

[0049] L Combination

[0050] M Switchgear cabinet interior

[0051] O G Housing opening

[0052] O S Switchgear cabinet opening

[0053] R X-ray inspection device

[0054] S, S 1 、S 2 … Switchgear cabinet

[0055] S O Open position

[0056] S X Closed position

[0057] T Switchgear door

[0058] Z Depth direction

[0059] The wall of the W switchgear cabinet

Claims

1. A combination (L) comprising an instrument housing (G) and at least one switchgear cabinet (S), wherein, a) The switchgear cabinet (S) is designed to accommodate electrical equipment, including at least one switchgear inner chamber (M) to be separated from the environment, wherein the separation includes a wall (W), b) The instrument housing (G) has a fluid-applyable component of an X-ray inspection instrument, and the X-ray source of the inspection instrument is cooled by a cooling medium fluid. c) The instrument housing (G) includes a housing opening (O G ), and the switchgear cabinet (S) adjacent to the housing opening (O G ) of the instrument housing (G) contains electrical components and / or electrical control components for the X-ray inspection instrument, d) The switchgear (S) is designed to close, in the closed position (S x ) the housing opening (O G ) in the instrument housing (G) adjacent to the switchgear (S) with its wall (W), and to open the housing opening in the open position (S o ). e) The wall (W) of the switchgear cabinet (S) closes the housing opening (O x ) of the instrument housing (G) in the closed position (S G ), and f) The wall (W) of the switchgear cabinet (S) seals the housing opening (O x ) in the closed position (S G ) to prevent the penetration of liquids; In the closed position (S x ) of the wall (W) closing the housing opening (O G ) of the switchgear cabinet (S), the wall (W) causes a separation of the components within the instrument housing (G) from the electrical equipment arranged in the switchgear cabinet (S).​​​​ 2. The combination (L) according to claim 1, characterized in that, The wall of the switchgear cabinet (S) can be relative to the housing opening (O G ) move from the closed position (S x ) to the open position (S o ) and back, by the switchgear cabinet with its wall (W) a) rotates about a rotation axis (A), or b) Move in a direction parallel to the wall to before or away from the housing opening (O G ), or c) moving towards or away from the opening (O G ) of the housing in a movement perpendicular to said opening, or d) moves in a manner that superimposes a plurality of the movements according to a) to c).

3. The combination (L) according to claim 2, characterized in that, The instrument housing (G) has fittings that are arranged and designed to cooperate with the switchgear cabinet (S) to allow controlled relative movement between the instrument housing (G) and the switchgear cabinet (S).

4. The assembly (L) according to claim 1, comprising a plurality of switchgear cabinets (S, S 1 , S 2 ...). wherein, At least one compartment (W) of a switchgear cabinet (S, S 1 ) has a switchgear cabinet opening (O 1 , S 2 ) that is closed by a wall (W) of an adjacent other switchgear cabinet (S S ).

5. The combination (L) according to claim 4, characterized in that, A wall (W) of a switchgear cabinet (S, S 1 , S 2 ...) seals the housing opening (O x ) or the switchgear cabinet opening (O G ) in the closed position (S S ).

6. The combination (L) according to claim 1, characterized in that, The switchgear cabinet (S) adjacent to the instrument housing (G) has a switchgear cabinet opening (O S ), which can be closed by a switchgear cabinet door (T), and wherein the instrument housing (G) is designed to mount the switchgear cabinet door (T) removed from the switchgear cabinet (S) on the instrument housing (G) in such a way that, instead of the wall (W) of the switchgear cabinet (S), the switchgear cabinet door (T) of the switchgear cabinet can be used to close the housing opening (O G ) of the instrument housing (G).

7. The combination (L) according to claim 1, characterized in that, The housing opening (O G ) of the instrument housing (G) can be closed by means of a door, and wherein the switchgear cabinet (S) adjacent to the instrument housing (G) has a switchgear cabinet opening (O S ), which can be closed by a switchgear cabinet door (T), and wherein the door of the instrument housing (G) can be separated from the housing opening (O G ) and can be installed as the switchgear cabinet door (T) on the switchgear cabinet opening (O S ) to close the switchgear cabinet opening (O S ), while the housing opening (O G ) can be closed by the wall (W) of the switchgear cabinet (S).

8. The combination (L) according to claim 6 or 7, characterized in that, The fitting configuration of the instrument housing (G) at the housing opening (O G ) is the same as the fitting configuration of the switchgear cabinet (S) at the switchgear cabinet opening (O S ). The fitting configuration is compatible with the switchgear door (T), so that the switchgear door (T) can be easily adjusted from the switchgear cabinet opening (O S ) to the housing opening (O G ) or vice versa.

9. The combination (L) according to claim 1, wherein, The wall (W) seals the housing opening (O x ) in the closed position (S G ) to obtain a predefined form of housing protection that reduces or prevents dirt, dust or gas from entering or leaving the instrument housing (G) via the housing opening (O G ).

10. The combination (L) according to claim 1, wherein, The opening (O G ) of the housing is defined by an edge lying in a plane.

11. The combination (L) according to claim 1, wherein, The wall (W) is flat.

12. The combination (L) according to claim 1, wherein, The cooling medium fluid is air or a cooling medium liquid.

13. The combination (L) according to claim 1, wherein, In the closed position (S x ), the wall (W) of the switchgear cabinet (S) closes the housing opening (O G ) in a sealed manner.

14. The combination (L) according to claim 2, wherein, The rotation axis (A) is vertical or horizontal.

15. The combination (L) according to claim 5, wherein, The seal prevents dirt, dust or gas from passing through.

16. The combination (L) according to claim 1, wherein, The component is a rigid tube, a container or a hose.

17. The combination (L) according to claim 6 or 7, wherein, The opening (O S ) of the switchgear is opposed to the wall (W) of the switchgear (S).

18. The combination (L) according to claim 9, wherein, The seal is a seal around the opening (O G ) of the housing.

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