Current punch-through device and material converter

Abstract

The invention relates to a current feed-through device (100), comprising a current rail (109), an elastomer seal (101) in which a recess (102) for the current rail (109) is formed, the current rail (109) being arranged so as to protrude through the recess (102) of the elastomer seal (101), and a pressing unit, by means of the pressing unit, the elastomer seal (101) can be pressed in such a way that the current rail (109) is surrounded by the elastomer seal (101) in a gas-tight manner. The invention also relates to a mass converter, in particular an electrolytic cell or a fuel cell, having such a current feed-through device (100).

Description

TECHNICAL FIELD

[0001] The invention relates to a current feedthrough, in which a current rail is hermetically surrounded by an elastomer seal, and to a housing assembly having such a current feedthrough and to a substance converter. BACKGROUND

[0002] For establishing an electrical contact between a substance converter, such as an electrolysis cell for splitting water or converting water into hydrogen and oxygen, or a fuel cell for converting, for example, hydrogen and oxygen into water, and, for example, power electronics components, cables and / or current rails can be used. The substance converter can here be constructed in a housing, wherein it can be necessary to hermetically separate the substance converter from the power electronics components, in particular for explosion protection reasons. Here, the cables or current rails passing through the housing have to be hermetically surrounded. SUMMARY

[0003] According to the invention, a current feedthrough is proposed, in which a current rail is hermetically surrounded by an elastomer seal, and a housing assembly and a substance converter, in particular an electrolysis cell or a fuel cell. Advantageous embodiments are given below.

[0004] The invention relates to a current feedthrough having a current rail, an elastomer seal and a pressing unit. Here, a recess for the current rail is constructed in the elastomer seal, wherein the current rail is arranged projecting through the recess. By means of the pressing unit, the elastomer seal can be pressed, so that the current rail is hermetically surrounded by the elastomer seal.

[0005] The elastomer seal has in particular elastic properties and is constructed in particular from a hermetic material. By pressing, the volume surrounded by the recess in the elastomer seal can be reduced, so that the current rail projecting through the recess can be hermetically surrounded by the elastomer seal. The recess can here have a cross section which is substantially (geometrically) similar to the cross section of the current rail. In particular, a (possibly slight) interference fit can already exist between the current rail and the elastomer seal before pressing.

[0006] The current rail can have a rectangular cross section (i.e. perpendicular to the longitudinal direction or main extension direction) and be configured for establishing an electrical contact between a substance converter (in particular configured for performing an electrolysis or fuel cell reaction, wherein in particular further hydrogen and / or oxygen is used) and an electronic component (for example a power electronics switch assembly).

[0007] The substance converter can be constructed in the housing assembly here such that it is spatially isolated, in particular hermetically isolated, from the electronic components. The current rail can be guided from the substance converter to the electronic components through a housing opening constructed in the housing assembly here by means of the proposed current breakthrough. The current breakthrough can be introduced hermetically into the housing opening here such that the substance converter is hermetically isolated from the electronic components. The housing opening can have a cross section that is substantially (geometrically) similar to that of the elastomer seal here. In particular, a (possibly slight) interference fit can already exist between the housing opening and the elastomer seal before the pressing. In particular by the pressing of the elastomer seal, not only is the current rail hermetically surrounded by the elastomer seal, but also the housing opening is hermetically closed by the elastomer seal.

[0008] By hermetically isolating the substance converter from the electronic components, gases used in the substance conversion or produced there can be prevented from reaching the electronic components and burning there or causing an explosion due to possible leaks or imperfections. Thus, by the hermetic isolation of the substance converter from the electronic components, in particular the safety of the process can be improved. The cause of the burning or triggering of an explosion can be a spark, which can be produced, for example, by a switching process of a relay or in the event of a short circuit, or possibly an overheating of individual electronic components.

[0009] In one embodiment, the pressing unit has at least two side plates between which the elastomer seal is arranged. The at least two side plates can be pressed against each other here by means of pressing means, such as in particular a bolt. Thereby a pressing unit can be provided which has very few simple components.

[0010] The at least two side plates can be composed, for example, entirely or at least partially of metal, for example aluminum, steel, etc., or of an electrically non-conductive material, such as plastic.

[0011] The bolt can be guided through the side plates and the elastomer seal by means of a corresponding bolt hole, which has substantially the bolt diameter of the corresponding bolt, and secured by means of a corresponding nut, whereby in particular the position of the side plates and the elastomer seal relative to each other can be determined or fixed. By the pressing, the bolt can also be hermetically surrounded by the elastomer seal.

[0012] In one embodiment, at least one of the at least two side plates of the pressing unit has a side plate recess for the current rail.

[0013] The side plate recess of each side plate can have a cross section that is substantially (geometrically) similar to that of the elastomer seal here.

[0014] The side plate apertures of the side plates can be arranged such that their respective cross sections overlap with the cross section of the aperture of the elastomer seal, so that the current rail can be arranged protruding through the side plate apertures of the side plates and through the aperture of the elastomer seal.

[0015] The side plate apertures of the side plates can be configured such that their cross sections substantially correspond to the cross section of the current rail (as set forth above, perpendicular to the main extension direction of the current rail).

[0016] The side plate apertures of the side plates can be configured such that, starting from the cross sectional profile of the current rail, the current rail is surrounded by the side plates at a uniform distance. By means of the pressing, it can be possible here to exert a substantially uniform mechanical pressure onto the elastomer seal, in particular in the region of the aperture of the elastomer seal.

[0017] The side plates can be arranged respectively in a plane perpendicular to the main extension direction of the current rail, i.e. in particular perpendicular to the direction in which the current rail protrudes through the aperture of the elastomer seal. By means of the pressing, the elastomer seal can be pressed onto the current rail here in a symmetrical manner, whereby the current rail can advantageously be surrounded by the elastomer seal, in particular in a gas-tight manner.

[0018] The side plates can be configured as circular plates, in particular with identical or different side plate diameters. Here, in particular at least one side plate is smaller than the housing opening, so that the current feedthrough can be inserted simply into the housing opening. One side plate can also be larger than the housing opening, in order to define, for example, a stop which orients the elastomer seal relative to the housing opening. The elastomer seal can also be configured as a circular plate, with a corresponding elastomer seal diameter. The side plate apertures in the side plates and the aperture in the elastomer seal can be configured centrically, i.e. in particular point-symmetrically with respect to a respective center point of the side plates or the elastomer seal.

[0019] In one embodiment, at least one of the at least two side plates of the pressing unit has a side plate gap between the side plate aperture and the side plate edge of the side plate. The current rail can be introduced into the side plate aperture through the side plate gap. For example, the side plate gap can have a corresponding width in order to be able to insert the current rail into the side plate aperture. It can be advantageously implemented thereby to introduce the current rail into a predefined position, in which the current rail is arranged in particular in a manner through the side plate aperture.

[0020] In one embodiment, at least one of the at least two side plates has two slits which are formed between the respective side plate aperture and the side plate edge. In other words, one side plate can also be configured in multiple parts, as is also shown in the figures hereinafter. By virtue of this, the side plate can be mounted in a predefined manner without the current rail having to be guided through the respective side plate aperture along its main extension, which is not possible in a simple manner when the end of the current rail is mechanically connected, for example, to a substance converter and / or electronic components.

[0021] In one embodiment, the elastomer seal has at least one slit between the aperture for the current rail and the edge of the elastomer seal. The current rail can be introduced into the aperture through the slit.

[0022] The elastomer seal has, in particular, elastic properties such that the elastomer seal can be deformed in such a way that the inner surfaces of the slits can be separated from one another to such an extent that the current rail can be guided through the slits into a predefined position. The predefined position is here, in particular, a position in which the current rail projects through the aperture in the elastomer seal.

[0023] In this embodiment, the current rail can be introduced into the predefined position particularly easily, wherein it is not necessary to guide the current rail through the aperture along its main extension, which is basically not possible, for example, as described above, if the end of the current rail is mechanically connected, or if the current rail has a non-uniform cross section along its main extension, such that the cross section is, for example, locally larger than the cross section of the aperture along the direction in which the current rail projects through the aperture in the elastomer seal.

[0024] The slits can here be compressed by the compression unit in such a way that the inner surfaces of the slits lie against one another in an air-tight manner.

[0025] In one embodiment, the elastomer seal has at least two slits between the aperture for the current rail and the edge of the elastomer seal, such that the elastomer seal consists of at least two sealing parts.

[0026] By virtue of the multiple-part design, the elastomer seal can be arranged particularly simply, such that the elastomer seal surrounds the current rail and the current rail is arranged projecting through the aperture in the elastomer seal. It is thus not necessary to guide the current rail, in particular, along its main extension through the aperture, which can be impossible in certain cases, as described above.

[0027] Furthermore, an air-tight connection between the slit inner surfaces can be established by virtue of the compression by means of the compression unit.

[0028] The elastomer seal can consist entirely or at least partially of a material which is, inter alia, gas-tight and elastically deformable, such that the current rail can be surrounded gas-tightly by the elastomer seal, inter alia, by means of mechanical compression. The elastomer seal is, inter alia, impermeable to hydrogen and / or oxygen. Furthermore, the elastomer seal is, inter alia, electrically non-conductive, such that an electric current flowing through the current rail does not flow through the elastomer seal. In one embodiment, the elastomer seal can have a material selected from the group consisting of rubber, silicone, ethylene propylene diene rubber (EPDM) and neoprene.

[0029] In one embodiment, the current lead-through device comprises at least one insulating flange, wherein the at least one insulating flange surrounds the current rail, respectively. The at least one insulating flange is arranged here between the current rail and the compression unit, respectively, such that the current rail is isolated, inter alia. electrically, from the compression unit by means of the at least one insulating flange, respectively. It can thus be ensured that no electrical breakdown occurs between the current rail and the compression unit, in particular the side plate.

[0030] In one embodiment, the at least one insulating flange is connected to the elastomer seal and / or is configured as part of the elastomer seal, respectively. Thus, the insulating flange can already be provided for the suitable elastomer seal at the time of manufacture.

[0031] By means of the at least one insulating flange, it can be avoided, inter alia., that an electrical contact is formed between the current rail and the compression unit, which can comprise a plurality of metal plates, inter alia. Thereby, the risk of an unintended passage of the electric current through the compression unit can be reduced.

[0032] The at least one insulating flange can be configured such that it surrounds the current rail flush and / or projects beyond the compression unit or the elastomer seal in the main extension direction of the current rail.

[0033] The at least one insulating flange can be configured as part of the elastomer seal, whereby the spatial position of the insulating flange, inter alia., relative to the elastomer seal can be determined or fixed.

[0034] The insulating flange can comprise a plurality of insulating flange elements, such that the insulating flange can be particularly advantageously arranged in a manner surrounding the current rail. Here, the current rail does not have to be guided through the insulating flange in the main extension direction, inter alia. The plurality of insulating elements is assembled here, inter alia., such that the current rail is completely surrounded by the insulating flange in the circumferential direction and, inter alia., no connection to the compression unit exists.

[0035] The at least one insulating flange is arranged in particular in or at the recess of the elastomer seal and protrudes beyond the recess and the compression unit in the main extension direction of the current rail. If the insulating flange is formed as part of the elastomer seal, the insulating flange can be configured such that the side or inner surface of the recess of the elastomer seal is prolonged beyond the compression unit in the main extension direction of the current rail. The elastomer seal can here have at least one gap between the recess and the edge of the elastomer seal, such that the at least one gap extends through the insulating flange and the insulating flange thus comprises a plurality of insulating flange elements.

[0036] In one embodiment, the current lead-through device has a plurality of current rails, wherein the elastomer seal has a recess for each of the plurality of current rails.

[0037] Hereby, the plurality of current rails can in particular be guided airtightly through the current lead-through device. The plurality of current rails can here for example each conduct one of a plurality of electrical phases or be configured for establishing contact with one of a plurality of electronic components, respectively.

[0038] The elastomer seal can here have at least one gap between the recess of each current rail and the edge of the elastomer seal, respectively. Furthermore, insulating flanges can be arranged around at least one, in particular all, of the plurality of current rails in accordance with the above description.

[0039] The application also relates to a housing assembly having a housing opening and the mentioned current lead-through device, which is configured in the housing opening, wherein the compressed elastomer seal airtightly seals the housing opening.

[0040] With the current lead-through device, at least one current rail can be guided airtightly out of the housing assembly. Furthermore, the cross section of the housing opening can be configured substantially the same or (geometrically) similarly to the cross section of the elastomer seal, such that the current lead-through device can be introduced into the housing opening such that the elastomer seal substantially flushly fills the housing opening. Here, the elastomer seal can in particular be compressed with the compression unit such that an airtight connection is formed between the elastomer seal and the housing opening.

[0041] The application also relates to a substance converter, in particular an electrolysis cell or a fuel cell, having the proposed housing assembly.

[0042] Here, the substance converter can be arranged in the housing assembly such that it is hermetically surrounded by the housing assembly. Thereby, it can be avoided that at least one gas, in particular hydrogen and / or oxygen, which is required for the substance conversion or which is generated here, leaks from the housing assembly and thus the risk of combustion and / or explosion of the at least one gas can be reduced. The combustion and / or explosion can be triggered here, for example, by a spark, which can be generated in the switching process of the electronic components or due to a short circuit, or by overheating of the electronic component(s).

[0043] By means of the current lead-through, which is arranged in particular hermetically in the housing opening, the at least one current rail can be led out of the housing assembly hermetically such that the possibility of leakage of the at least one gas is substantially reduced and the respective above-mentioned risks can be reduced.

[0044] On the side of the current lead-through facing away from the substance converter, the current rail can be connected to the electronic component(s), in particular to the power electronic component(s). The current rail can be used here for providing the electrical energy required for electrolysis or for leading out the electrical energy converted in the reverse electrolysis (fuel cell reaction).

[0045] The housing assembly can further comprise input and / or output lines, in particular hermetically, for the at least one gas, in particular hydrogen and / or oxygen. By means of these input and / or output lines, the gas required for the substance conversion or released can be supplied to the substance converter or led out of the substance converter.

[0046] It can furthermore be that the electronic components are arranged in the housing assembly, i.e. are surrounded in particular hermetically by the housing assembly, in accordance with the above description, while the substance converter is arranged outside the housing assembly. The substance converter can be arranged in a first housing assembly and the electronic components are arranged in a second housing assembly. BRIEF DESCRIPTION OF DRAWINGS

[0047] Further advantages and embodiments of the application result from the description and the drawings.

[0048] The application is schematically illustrated in the drawings according to embodiments and is described in the following with reference to the drawings.

[0049] Figures la to lc One embodiment of the proposed current lead-through is schematically illustrated in different views.

[0050] Figure 2a and Figure 2b Another embodiment of the proposed current lead-through is schematically illustrated in different views. DETAILED DESCRIPTION

[0051] One embodiment of the proposed current lead-through is schematically illustrated in a perspective view from an oblique top in Figure la One embodiment of the proposed current lead-through is schematically illustrated in a perspective view from an oblique top in

[0052] The current feedthrough 100 has an elastomer seal 101 in which a recess 102 is configured in which a current rail can be arranged protruding. The elastomer seal 101 is here configured as a cylindrical disk in which the recess 102 is arranged centrally, in particular point-symmetrically with respect to the center point of the circular cross section of the elastomer seal 101 and / or axisymmetrically with respect to a diagonal axis.

[0053] The recess 102 has a rectangular cross section so that a current rail having likewise a rectangular cross section can be introduced into the recess in a gas-tight manner. Subsequently, a first insulating flange 103a is mounted to the elastomer seal, which first insulating flange continues the recess 102 along an axis R perpendicular to the main extension plane of the elastomer seal 101.

[0054] The current feedthrough 100 also has a compression unit which has two side plates 104a, 104b. The side plates 104a, 104b are here configured as cylindrical disks having a circular cross section and each have a central side plate recess 105a.

[0055] A first side plate 104a of the two side plates is arranged on a first side of the two circular sides of the elastomer seal 101 so that the first insulating flange 103a protrudes through the side plate recess 105a. A second side plate 104b of the two side plates is arranged on a second side, in particular the other side, of the two circular sides of the elastomer seal 101 so that the second insulating flange 103b protrudes through the side plate recess 105a.

[0056] The insulating flanges 103a, 103b here each protrude beyond the respective side plate 104a, 104b along the axis R, along the height of the respective insulating flange 103a, 103b being greater than the thickness of the respective side plate 104a, 104b.

[0057] The side plates 104a, 104b also each have two side plate slits 106a, 106b which extend between the respective side plate recess 105a and a side plate edge of the respective side plate 104a, 104b. The side plate slits 106a, 106b extend in particular radially and in the example shown parallel to one of the long sides of the rectangular cross section of the recess 102, however can also extend arbitrarily. Thus, each of the two side plates 104a, 104b is configured multipart, here two-part, i.e. comprises two side plate portions.

[0058] The two side plates 104a, 104b are connected to one another by means of a plurality of bolts 107a and corresponding nuts 107b. The side plates 104a, 104b and the elastomer seal 101 have corresponding recesses here, through which the bolts 107a can be guided. By means of the threaded connection, the elastomer seal 101 can be compressed, whereby the current rail arranged projecting through the recess 102 can be surrounded by the elastomer seal 101 in particular in an airtight manner. The bolts 107a can also be surrounded by the elastomer seal 101 in an airtight manner thereby.

[0059] In Figure lb a further perspective view of the current lead-through device 100 shown in Figure la is shown. Here, the second side plate 104b of the two side plates is shown above the drawing.

[0060] The second side plate 104b has two side plate slits 106c, 106d here in particular between the central side plate recess 105b and the side plate edge of the side plate 104b. Like the side plate slits 106a, 106b configured in the first side plate 104a, the side plate slits 106c, 106d extend radially and parallel to one of the long sides of the rectangular cross section of the recess 102. The side plate slits 106a, 106b of the first side plate 104a and the side plate slits 106c, 106d of the second side plate 104b lie in a plane along the axis R here in particular.

[0061] Also visible in this view is the second insulating flange 103b, which is arranged and configured analogously to the first insulating flange 103a.

[0062] Furthermore, it can be seen from this view that the elastomer seal 101 has a slit 108, which extends from the recess 102 to the edge of the elastomer seal 101. The current rail can be introduced in particular advantageously into the recess 102 through this slit 108.

[0063] In Figure lc a sectional view of the current lead-through device shown in Figure la and Figure lb is shown.

[0064] Here, the current rail 109 is shown in particular, which is arranged projecting through the recess 102 of the elastomer seal and the side plate recesses 105a, 105b. The current rail 109 has a rectangular cross section here (in the drawing perpendicular to the axis R), which corresponds substantially to the cross section of the recess 102 of the elastomer seal 101.

[0065] The insulation flanges 103a, 103b are arranged in close proximity to the elastomer seal 101 and enclose the current rails 109, respectively. By means of the insulation flanges 103a, 103b, an electrical contact between the current rails 109 and one of the side plates 104a, 104b can be prevented.

[0066] Tightening the screw (this is illustrated by the vertical arrow) leads to a compression of the elastomer seal 101, which in turn leads to an expansion of the elastomer seal 101 into the recess 102 and into the space radially outward (this is illustrated by the horizontal arrow).

[0067] In Figure 2a A further embodiment of the proposed current lead-through device is schematically shown in an exploded view in Fig. 2, which is designated 200.

[0068] The current lead-through device 200 has here four current rails 201a to 201d, which each have a rectangular cross section (perpendicular to the axis R) and are arranged in parallel.

[0069] The current rails 201a to 201d are each arranged protruding through a side plate recess 202 in a first side plate 203, wherein the first side plate 203 is configured as a rectangular plate. The side plate recesses 202 each have a rectangular cross section (perpendicular to the axis R), which is configured such that the respective current rail 201a to 201d protruding through the respective side plate recess 202 does not come into contact, in particular electrical contact, with the first side plate.

[0070] The first side plate 203 also has an edge element 204 for the orientation or arrangement of the (multi-piece) elastomer seal 205a, 205b.

[0071] In this embodiment, the elastomer seal 205a, 205b has four recesses 206, which are arranged in the same way as the side plate recesses 202 in the first side plate 203. The cross sections of the recesses 206 are each (geometrically) similar and essentially identical to the cross sections of the respective current rails 201a to 201d, so that the respective current rail 201a to 201d is particularly surrounded flush by the respective recess 202.

[0072] In the elastomeric seals 205a and 205b, multiple slits are formed between the notch 206 and the edges of the elastomeric seals 205a and 205b, and between two of the four notches 206. These slits extend particularly along two slit planes, which are respectively extended by a line parallel to the long side of the rectangular cross-section of one of the current rails 201a to 201d (extending parallel to axis R) and a line parallel to the long side of the rectangular cross-section of the same current rail 201a to 201d, and extend through the two notches 206. Therefore, the elastomeric seals 205a and 205b currently have three sealing portions, which facilitates the arrangement of the seals.

[0073] The elastomeric seals 205a and 205b also include a plurality of insulating flanges 207a and 207b, which extend the cross section of the notch 206 along a direction perpendicular to the main extension direction of the current rails 201a to 201d.

[0074] Furthermore, the current-passing device 200 includes second (multi-piece) side plates 208a and 208b, which also have side plate notches 209, arranged in the same manner as the side plate notches 202 of the first side plate 203. The second side plates 208a and 208b also have side plate slots. These slots extend along two side plate slot planes, which are respectively extended by the main extension axis of one of the current rails 201a to 201d and by lines parallel to the long side of the rectangular cross-section of the same current rail 201a to 201d, and extend through the two side plate notches 209. These side plate slot planes are particularly offset from the slot planes along which the slots of the elastomeric seals 205a and 205b are located.

[0075] Current rails 201a to 201d are arranged in pairs, wherein the current rails of a pair of current rails 201a, 201b or 201c, 201d are arranged in a staggered manner along axes extending parallel to the long side of the rectangular cross-section of one of the current rails 201a to 201d in that pair. The gap plane along which the gaps of the elastomeric seals 205a and 205b are located is in close contact with the side of one of the current rails 201a, 201b or 201c, 201d facing the other pair of current rails 201a, 201b or 201c, 201d. The side plate gap plane abuts against insulating flanges 207a and 207b, which are arranged to abut against one of the current rails 201a to 201d in the two pairs of current rails 201a, 201b or 201c, 201d. The side plate gap plane is specifically arranged between the two pairs of current rails 201a, 201b or 201c, 201d.

[0076] The side plate portion 208a, located on the inner side or in the middle between two pairs of current rails 201a, 201b or 201c, 201d, is smaller than the corresponding inner side or in the middle of the elastomeric seal portion 205a located between the two pairs of current rails 201a, 201b or 201c, 201d. The outer side plate portion 208b is larger than the corresponding outer elastomeric seal portion 205b.

[0077] The inner insulating flange portion 207a, arranged between two pairs of current rails 201a, 201b or 201c, 201d, is plate-shaped and encloses the respective slot-shaped outer insulating flange portion 207b.

[0078] exist Figure 2b The text is a jumbled collection of characters and phrases, seemingly from different sources and lacking coherent sentences. A direct translation wouldn't be meaningful. Figure 2a The image shows an assembled view of the current-passing device.

[0079] Here, elastomeric seals 205a and 205b are introduced, in particular flush with, into the edge element 204 of the first side plate 203.

[0080] Furthermore, the elastomeric seals 205a and 205b are arranged close together, particularly flush, in the assembly of the current-passing device 200. This is achieved through a threaded connection (in... Figure 2b (Not shown) The two side plates 203, 208a, 208b can be pressed together, thereby pressing the elastomeric seals 205a, 205b. As a result, the current rails 201a to 201d can be hermetically surrounded by the elastomeric seals 205a, 205b, and the elastomeric seals 205a, 205b are also hermetically arranged in the edge element 204 (which, for example, forms a housing opening).

Claims

1. A current feedthrough (100, 200) having a current rail (109, 201a-d), an elastomeric seal (101, 205a, 205b) in which a recess (102, 206) for the current rail (109, 201a to 201d) is configured, wherein the current rail (109, 201a-d) protrudes through a gap (102, 206) of the elastomer seal (101, 205a, 205b), and a compression unit by means of which the elastomer seal (101, 205a, 205b) can be compressed such that the current rail (109, 201a-d) is surrounded by the elastomer seal (101, 205a, 205b) in an air-tight manner.

2. The current-passing device (100, 200) according to claim 1, wherein The compression unit has at least two side plates (104a, 104b, 203, 208a, 208b) between which the elastomer seal (101, 205a, 205b) is arranged, and which can be compressed against one another, in particular by means of bolts (107a-b).

3. The current-passing device (100, 200) according to claim 2, wherein At least one side plate (104a, 104b, 203, 208a, 208b) of the at least two side plates (104a, 104b, 203, 208a, 208b) of the compression unit has a side plate gap (105a-b, 209) for the current rail (109, 201a-d), wherein the current rail (109, 201a-d) protrudes through the side plate gap (105a-b, 209).

4. The current-passing device (100, 200) according to claim 3, wherein The at least one side plate (104a, 104b, 203, 208a, 208b) has between the side plate gap (105a-b, 209) and a side plate edge of the side plate (104a, 104b, 203, 208a, 208b) a side plate gap, through which the current rail (109, 201a-d) can be introduced into the side plate gap (105a-b, 209).

5. The current-passing device (100, 200) according to claim 3 or 4, wherein The at least one side plate (104a, 104b, 203, 208a, 208b) has between the side plate gap (105a-b, 209) and a side plate edge of the side plate (104a, 104b, 203, 208a, 208b) two side plate gaps (106a-d).

6. The current-passing device (100, 200) according to any one of the preceding claims, wherein The elastomer seal (101, 205a, 205b) has between a gap (102, 206) for the current rail (109, 201a-d) and an edge of the elastomer seal (101, 205a, 205b) at least one gap (108), through which the current rail (109, 201a-d) can be introduced into the gap (102, 206).

7. The current-passing device (100, 200) according to any one of the preceding claims, wherein The elastomer seal (101, 205a, 205b) has between a gap (102, 206) for the current rail (109, 201a-d) and an edge of the elastomer seal (101, 205a, 205b) at least two gaps (108).

8. The current-passing device (100, 200) according to any one of the preceding claims, wherein The elastomer seal (101, 205a, 205b) has at least one material selected from the group consisting of rubber, silicone, ethylene propylene diene rubber, and neoprene.

9. The current penetration device (100, 200) according to any one of the preceding claims, further having at least one insulating flange (103a, 103b, 207a, 207b) surrounding the current rails (109, 201a to 201d), respectively, and arranged between the current rails (109, 201a to 201d) and the compression unit, such that the current rails (109, 201a to 201d) are isolated from the compression unit by means of the at least one insulating flange (103a, 103b, 207a, 207b), respectively.

10. The current-passing device (100, 200) according to claim 9, wherein The at least one insulating flange (103a, 103b, 207a, 207b) is connected to the elastomer seal (101, 205a, 205b), respectively, and / or wherein the at least one insulating flange (103a, 103b, 207a, 207b) is configured as part of the elastomer seal (101, 205a, 205b).

11. The current sneak path device (100, 200) according to any of the preceding claims, having a plurality of current rails (109, 201a to 201d), wherein, The elastomer seal (101, 205a, 205b) has a recess (102, 206) for each of the plurality of current rails (109, 201a to 201d), respectively.

12. A housing assembly having a housing opening and a current breakthrough device (100, 200) according to any one of the preceding claims, which is constructed in the housing opening, wherein The compressed elastomer seal (101, 205a, 205b) hermetically seals the housing opening.

13. A substance converter, in particular an electrolysis cell or a fuel cell, having a housing assembly according to claim 12.

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