Connection assembly between two housing chambers of a control device and electronic module for a vehicle

Abstract

The utility model relates to a connecting assembly between two shell cavities of control equipment and an electronic module for a vehicle. The connecting assembly is provided with a control equipment shell with the two shell cavities (1 and 2) and a shell separation wall (3) for separating the first shell cavity (1) from the second shell cavity (2). The first housing chamber (1) is designed as a dry chamber and in which at least one first electrical contact partner (4) is arranged. The second housing chamber (2) is designed as a wet chamber and in which at least one second electrical contact partner (6) is arranged. An electrical line (5) electrically connects the first contact partner (4) and the second contact partner (6) to each other. The electrical line (5) extends through a channel (7) in the housing partition wall (3), a foamed elastomer (8) being arranged in the channel (7), said elastomer sealing the channel (7).

Description

Technical Field

[0001] The utility model relates to a connection assembly between two housing chambers of a control device, wherein the connection assembly has a control device housing with two housing chambers and a housing partition wall that separates a first housing chamber and a second housing chamber from each other. The first housing chamber is configured as a dry chamber. At least one first contact counterpart having at least one conductive area is arranged in the dry chamber. The second housing chamber is configured as a wet chamber. At least one second contact counterpart having at least one second conductive area is arranged in the wet chamber. The two contact counterparts are electrically connected to each other via an electrical line. In addition, the utility model relates to an electronic module and a method for manufacturing such a connection assembly. Background Art

[0002] In control devices with dry chambers in which circuit boards and / or electrical components are located, the dry chambers must be protected from moisture ingress. At the same time, electrical connections must be established from the dry chambers. For this purpose, so-called flexible films can be used as electrical lines, for example.

[0003] Flexible films are widely used today as elements for electrically contacting components. Flexible films are usually electrically contacted with a corresponding counterpart by soldering, bonding, laser welding, etc. Flexible films can have one or more conductor tracks. In addition, flexible films can have a bonding surface in order to establish at least one electrical connection with an electronic unit.

[0004] In order to establish an electrical connection between the wet chamber and the dry chamber of the control device, the cable lead-through from the wet chamber to the dry chamber must be sealed. In known applications, this sealing is performed by a separate surrounding sealing frame, which seals the dry chamber against moisture and enables electrical contacting by containing the cable guide. However, such sealing frames are very expensive.

[0005] DE 101 15 693A1 discloses a seal for a cable penetration through a carrier plate of a motor vehicle door, wherein the cable penetration is closed by a shaped part. Here, a gel-like substance for sealing the gap is arranged between a film conductor, a flexible circuit board, etc. and the shaped part and / or the carrier plate.

[0006] DE 10 2013 215 227 A1 discloses an electronic module, in particular an electronic module for a transmission control unit in a motor vehicle. The electronic module comprises a circuit board, a module base plate, a sealing ring and a flexible film. The circuit board is configured as a circuit carrier for a control circuit. The circuit board has a plurality of electronic components of the control circuit on its lower side. The electronic components are electrically contacted with connection pads on the upper side of the circuit board through the circuit board in a through-hole manner. The circuit board, the module base plate and the sealing ring together surround a central cavity, in which the electronic components of the control circuit are accommodated. Utility Model Content

[0007] The object of the invention is to specify an improved connection assembly and an electronics module as well as a method which allow simplified and sealed laying of electrical connections between housing chambers of a control unit.

[0008] This object is achieved by a connection arrangement between two housing chambers of a control device as described below and by a connection arrangement for a vehicle as described below.

[0009] Further advantageous embodiments are described below, which can be combined with one another in a suitable manner in order to achieve further advantages.

[0010] This object is achieved by a connection arrangement between two housing chambers of a control unit, in particular a vehicle control unit. The control unit can be designed, for example, as an electronic module.

[0011] Therefore, the connection assembly has a control device housing with at least two housing chambers and a housing partition wall, which separates a first housing chamber and a second housing chamber from each other. The first housing chamber is configured as a dry chamber, wherein at least one first electrical contact partner with at least one conductive area is arranged in the first housing chamber. The second housing chamber is configured as a wet chamber, wherein at least one second electrical contact partner with at least one second conductive area is arranged in the second housing chamber. In addition, an electrical line is provided to electrically connect the first electrical contact partner and the second electrical contact partner to each other. A channel, i.e. a suitable opening, is provided in the housing partition wall. The electrical line extends through the channel. A foamed elastomer is provided in the channel, which seals the channel.

[0012] Thus, an electrical connection is provided between two housing chambers, wherein the housing chambers are separated from one another in a medium-tight manner. The channel in the partition wall enables simple routing of the electrical line and at the same time sealing. The elastomer prevents the medium from penetrating from the wet chamber into the dry chamber via the channel. In the channel region, the elastomer seals the housing partition wall and the electrical line. Thus, a maintenance-free, inexpensive and reliable seal having a high tolerance range can be achieved by the connection assembly.

[0013] The elastomer can be foamed in any suitable manner. In order to improve the sealing effect, closed-cell elastomers are especially used.

[0014] Due to the flexibility of the foamed elastomer, greater tolerances can be accepted in the production of the channel without endangering the sealing effect. In addition, during the operation of the control device, the elastomer also leads to a reduction in vibrations and shocks, which has a positive effect on the durability of the electrical lines in particular. In addition, the extension can also cause the elastomer to relax at the end. The contact pressure of the elastomer is eliminated in the extension. This increases the service life of the elastomer.

[0015] Preferably, the length of the elastic body is greater than the length of the channel, so that the flange-shaped protrusion is tightly attached to the housing partition wall. The flange shape improves the sealing effect.

[0016] Due to the sealing by means of the elastomer, the channel can have almost any shape in the housing partition wall. The elastomer adapts to the shape of the channel and seals it. The channel can, for example, extend horizontally between the housing chambers, so that the use of angle tools for forming the channel can be dispensed with. An angle tool is any tool that can introduce an inclined channel into the wall with small tolerances.

[0017] The electrical line and the elastomer are also easily locked in the channel by the contact pressure generated by the elastomer. The overlength of the elastomer, i.e., the overhang on one or both sides, protects the elastomer from slipping out of the channel. With this arrangement, the flexibility of the electrical line can be maintained to a large extent, because the complete encapsulation of the line can be omitted.

[0018] Preferably, the elastomer is pressed into the channel. In this way, the elastomer exerts a contact pressure on the housing partition wall and the electrical circuit in the region of the channel, so that the elastomer seals the channel. This pressing in increases the sealing effect of the elastomer.

[0019] In a possible embodiment, the channel has a first vertical height and a first length. The first length is constructed between the first housing chamber and the second housing chamber. And the channel has a first width orthogonal to the first length. The elastomer has a second vertical height, wherein the second height is greater than the first height of the channel in the unmounted state of the elastomer. And the elastomer has a second length, which is greater than the first length of the channel. And the elastomer has a second width, which is equal to or greater than the first width of the channel in the unmounted state of the elastomer. Therefore, in the unmounted state, that is, in a relaxed state when not installed in the channel, the elastomer has a larger spatial extension than the channel.

[0020] In the installed state, the elastomer can be clamped in the channel so that the elastomer protrudes beyond the channel on both sides with a first overhang and a second overhang. Due to the greater second vertical height of the elastomer and the second width of the elastomer that is the same as or greater than the first width of the channel, a contact pressure is formed in the elastomer, so that the elastomer is arranged in the channel in a sealed manner by means of the contact pressure and the overhangs on both sides. The electrical line is guided through the elastomer arranged in the channel. Here, there is also a sealing effect between the elastomer and the electrical line due to the contact pressure formed by the elastomer.

[0021] The length, width and vertical height of the elastic body correspond to the length, width and vertical height of the channel. Similarly, the channel can also be a horizontal hole, for example, and the elastic body can be configured to be large accordingly. The width and vertical height are configured identically to the radius in the case of a hole.

[0022] In another embodiment, the channel is arranged horizontally in the housing partition wall. This also makes it possible to dispense with the use of angle tools if necessary.

[0023] In another embodiment, the electrical line is completely surrounded by the elastomer in the channel in the lateral direction. The elastomer can thus be placed tightly against the electrical line from all sides in the channel. The line is evenly loaded with the contact pressure of the elastomer from all sides.

[0024] In another embodiment, the electric line is arranged centrally in the elastic body, so that the contact pressure can act evenly on the electric line.

[0025] The electrical circuit is particularly flexible. Preferably, the electrical circuit is configured as a flexible printed circuit board or as a flexible film. A flexible printed circuit board or a flexible film is particularly suitable as such an electrical circuit due to its flexibility and its low height. In particular, the electrical circuit has a plurality of conductive cores in order to electrically connect one or more first electrical contact partners with one or more second electrical contact partners. It can be provided that a plurality of such electrical circuits, in particular a plurality of flexible printed circuit boards or flexible films, are provided for electrical connection between a first and a second housing chamber, the first and second housing chambers being surrounded by an elastomer in the region of a notch, in particular side by side or superimposed on each other. The electrical circuit has in particular an electrical insulating part. The electrical insulating part extends in particular over the length of the electrical circuit.

[0026] In a further embodiment, in the unmounted state, the elastomer has a second height which is approximately twice as great as the first height of the channel. This means that the second height is twice as great as the channel height with conventional tolerances. As a result, sufficient contact pressure is exerted on the housing partition wall, but no unnecessarily high pressure is exerted. The risk of damaging the housing or the elastomer due to an impermissibly high contact pressure of the elastomer is thus minimized.

[0027] In another embodiment, the elastic body is formed by sponge rubber, which has very good sealing properties, is temperature-resistant and easy to handle.

[0028] In another embodiment, the elastomer is configured as EPDM (ethylene-propylene-diene) rubber. This allows the connection assembly to be resistant to aging, light and weathering, and to be used in a wide temperature range. In addition, a freeze-proof connection assembly can be achieved.

[0029] Alternatively, the elastomer can also be configured as foam rubber. Here, foam rubber is a largely closed-cell and elastic foam material that can also be used for sealing.

[0030] In another structural scheme, the elastomer has an upper part and a lower part. Here, the elastomer is constructed in two parts, in particular, from an upper part and a lower part. Here, the electric circuit is arranged between the upper part and the lower part in the channel. Here, the upper part and the lower part can have approximately the same vertical part height. Thus, the electric circuit can be simply placed on the lower part, wherein the elastomer is complete by subsequently placing the upper part on the lower part and the electric circuit. The placement areas of the upper part and the lower part that belong to each other here in particular have shapes that complement each other in order to prevent cracks and improve the sealing effect of the elastomer in the assembled state. The upper part and the lower part are constructed in particular in the same way as each other here. Thus, the upper part and the lower part can be manufactured using the same tool. The electric circuit can be clamped between the upper part and the lower part in the channel before arrangement. Thus, inexpensive manufacturing and simple placement of the electric circuit can be achieved.

[0031] In another embodiment, the elastomer has an upper side and a lower side in a single piece, wherein the upper side and the lower side can be folded open relative to each other. Here, the electrical circuit is arranged between the upper side and the lower side. Here, the elastomer is particularly constructed in a single piece. In order to form the upper side and the lower side, the elastomer can, for example, be provided with a slit in the side of the elastomer. Subsequently, the upper side and the lower side can be folded open relative to each other at the side of the slit. As a result, the electrical circuit can be easily inserted into the slit, and the slit can be closed again by closing the upper side and the lower side. As a result, the electrical circuit can be moved from the open (slit) side of the elastomer into the elastomer until the circuit abuts against the opposite side of the elastomer that is not slit. As a result, the electrical circuit can be simply and centrally arranged in the elastomer.

[0032] In another embodiment, the elastomer has a gap, wherein the elastomer surrounds the gap in a single piece. This means that the elastomer is closed laterally to the gap; therefore, the gap does not pass into the side of the elastomer. Here, the electrical line is arranged in the gap. The elastomer is particularly designed in a single piece here. The gap penetrates the elastomer in particular in the entire longitudinal direction of the elastomer. As a result, the electrical line can be guided in the gap of the elastomer over the entire length of the channel. In order to arrange the electrical line in the gap, the line can be led through the gap. In this way, no additional gaps or cracks are required in the elastomer, and the channel is therefore particularly well sealed by the elastomer.

[0033] The object is also achieved by an electronic module for a vehicle, wherein the module has a connection assembly as proposed herein. In particular, the electronic module contains one or more plugs that are electrically contacted by means of electrical lines. The electronic module can form the control device described. The electronic module can be a control device for a vehicle drive unit or an automatically switchable vehicle transmission.

[0034] The object is also achieved by a method for producing a tight connection assembly between two housing chambers of a control device. The connection assembly is in particular the connection assembly proposed above; therefore, the above explanations about the connection assembly should also be understood in relation to the production method.

[0035] The connection assembly used within the scope of the production method has a control device housing with at least two housing chambers and a housing partition wall. The housing partition wall separates a first housing chamber and a second housing chamber from each other. The first housing chamber is designed as a dry chamber and contains at least one first electrical contact partner having at least one conductive area. The second housing chamber is designed as a wet chamber and contains at least one second electrical contact partner having at least one second conductive area.

[0036] The manufacturing method comprises the following steps:

[0037] - Providing a channel in the housing partition wall. Here, the channel has a vertical first height and a first length. The first length is formed between the first housing chamber and the second housing chamber. The channel also has a first width orthogonal to the longitudinal direction.

[0038] - a foamed elastomer is provided. The elastomer has a second vertical height, which is greater than the first height of the passage in an unmounted (relaxed) state of the elastomer. The elastomer also has a second length, which is greater than the first length of the passage. The elastomer also has a second width, which is equal to or greater than the first width in an unmounted (relaxed) state of the elastomer. Here, the electrical line is led through the elastomer, for example through a gap in the elastomer.

[0039] - Clamping the elastomer together with the electrical line in the channel so that the elastomer protrudes beyond the channel in the projection. The required compression of the elastomer results in a contact pressure, by which the elastomer is arranged in the channel in a sealed manner in combination with the projection. The contact pressure also produces a sealing effect between the elastomer and the electrical line.

[0040] The first electrical contact partner and the second electrical contact partner are electrically connected by means of an electrical line.

[0041] Thus, the advantages of the connection assembly can be transferred to the manufacturing method.

[0042] In a further embodiment of the method, the elastic body is elastically compressed for clamping and is arranged uniformly in the channel, thereby making it possible to easily assemble the connecting assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Other features and advantages of the present invention are obtained from the following description with reference to the accompanying drawings. Here schematically:

[0044] Figure 1 : shows a connection assembly of the prior art;

[0045] Figure 2 : Shows Figure 1 Seals for connecting components;

[0046] Figure 3 : shows the proposed connection component;

[0047] Figure 4 : The cross-sectional view shows Figure 3 a portion of a connected component;

[0048] Figure 5 : shows possible designs of connection components;

[0049] Figure 6 : shows possible designs of connection components;

[0050] Figure 7 : shows possible designs of connection components;

[0051] Figure 8 : The method steps of the proposed method for producing a connection component are shown. DETAILED DESCRIPTION

[0052] Figure 1 and Figure 2A connection between two housing chambers 101, 102 according to the prior art is shown in a three-dimensional diagram, which connection can be used, for example, in a control device for a vehicle transmission. In this case, the first housing chamber 101 is designed as a dry chamber, which has sensitive electronic components, such as a circuit board or an electronic control unit 104. The second housing chamber 102 is separated from the first housing chamber 101 by a housing partition wall 103. The second housing chamber 102 is designed as a wet chamber. The wet chamber 102 can be a chamber that is not sealed in a medium-tight manner and is therefore contaminated by oil-moistened air.

[0053] A flexible film 105 is arranged between the first housing chamber 101 and the second housing chamber 102 as an electrical line which electrically connects, for example, a circuit board or an electronic control unit 104 in the first housing chamber 101 with a sensor connection part 106 in the second housing chamber 102 .

[0054] The sealing of the first housing chamber 101 and the routing of the lines into the second housing chamber 102 are accomplished via Figure 2 107 is realized by a surrounding sealing frame 107 shown in FIG. Here, a projection 108 is provided on the sealing frame 107 in the region of the housing partition wall 103, on which the flexible membrane 105 is guided out of the dry chamber 101. The sealing frame 107 separates the first housing chamber 101 and the second housing chamber 102 from each other in a medium-tight manner. However, such a surrounding, frame-shaped seal 107 is very expensive.

[0055] Figure 3 A possible embodiment of the proposed connecting assembly 11 is shown. The connecting assembly is used for the media-tight electrical connection of a first housing chamber 1 and a second housing chamber 2 of a control unit. The housing chambers 1 , 2 are accommodated in a housing of the control unit. Figure 3 is a top view of the lower part of a control device. The control device is designed as a vehicle control device by way of example. It forms an electronic module.

[0056] The first housing chamber 1 is a dry chamber, and the second housing chamber 2 is a wet chamber. The first housing chamber 1 contains, in particular, a circuit board as a first electrical contact partner 4, which circuit board can be equipped with a microcontroller (ECU). The second housing chamber 2 contains a second electrical contact partner 6, such as, in particular, an electrical connection. The connection 6 can be designed, for example, as a connection plug for a sensor. The two contact partners 4, 6 are electrically contacted with each other by means of an electrical line 5.

[0057] Furthermore, a housing partition wall 3 is provided which separates the first housing chamber 1 and the second housing chamber 2 from each other. The walls of the individual housing chambers 1, 2 and the housing partition wall 3 can be designed as a single cast part. The housing partition wall 3 has a channel 7 through which the electrical line 5 is guided.

[0058] Figure 4 The longitudinal section through the housing partition wall 3 shows Figure 1 Detail of a connecting component 11 of FIG. Here, the connecting component 11 has a channel 7 in the housing partition wall 3. For example, the channel is introduced horizontally into the partition wall 3. The horizontal design allows a simple introduction without an angle tool.

[0059] The channel 7 has, for example, a first length L1, a first width B1 and a first height H1. The first length L1 extends from the first housing chamber 1 to the second housing chamber 2. The first length L1 thus corresponds to the extent of the channel 7 through the housing partition wall 3. Figure 4 , the length L1 extends along the horizontal extension of the channel 7 in the drawing plane; the height H1 extends over the vertical extension of the channel 7 in the drawing plane; and the width B1 extends over the extension of the channel 7 orthogonally into the drawing plane.

[0060] Furthermore, a foamed elastic body 8 is provided in the connection component 11, which is arranged in the channel 7. The electrical line 5 extends through the elastic body 8. The elastic body 8 has the purpose of sealing the channel 7. As a result, the separation of the housing chambers 1, 2 in a medium-tight manner is maintained. At the same time, the electrical connection of the chambers 1, 2 via the electrical line 5 can be achieved.

[0061] The elastomer 8 can be made of sponge rubber. In particular, the elastomer 8 is made of EPDM (ethylene-propylene-diene) rubber. The elastomer 8 formed in this way is resistant to aging, has light resistance and weather resistance, and can be used in a wide temperature range. In addition, a freeze-proof connection component 11 can be realized. The continuous function of the connection component 11 is thereby ensured.

[0062] The dimensions of the elastomer 8 are preferably selected such that the elastomer is pressed into the channel 8. As a result, in the region of the channel 7, the elastomer exerts a contact pressure both on the housing partition wall 3 and on the electrical line 5, which seals the channel 7. The elastomer 8 is then arranged in the channel 7 in a pressure-deformed manner and seals the channel.

[0063] For example, the elastic body 8 has a second height H2, a second length L2, and a second width B2. In the unmounted, i.e., relaxed state of the elastic body 8, the height H2 of the elastic body is greater than the height H1 of the channel 7, and its width B2 is greater than the width B1 of the channel 7. In addition, the length L2 of the elastic body 8 is greater than the length L1 of the channel 7. Since the relaxed elastic body 8 is larger than the channel 7, the elastic body is first compressed for mounting and is embedded in the channel 7 in a compressed state. Subsequently, the elastic body 8 will apply a permanent contact pressure to the side wall of the channel 7, which causes the sealing of the channel 7.

[0064] For example, the elastic body 8 can be about twice as high (height H2) as the channel 7 (height H1). This generates sufficient contact pressure, but not too much pressure. Therefore, damage to the connecting component 11 due to excessive contact pressure can be prevented.

[0065] In addition, compared with the channel 7, the elastomer 8 has an excessive length L2, thereby forming a first flange-shaped overhang 9 and a second flange-shaped overhang 10. Due to the overhangs 9 and 10 on both sides, relaxation of the elastomer 8 on the end sides can be caused. The contact pressure decreases in the overhangs 9 and 10. This increases the service life of the elastomer 8. In addition, the overhangs 9 and 10 have an additional sealing effect because these overhangs are against the corresponding sides of the housing partition wall 3 and thus form another sealing surface. In particular, the first overhang 9 can be constructed in the same manner as the second overhang 10, so that symmetry occurs. The overhangs 9 and 10 also protect the elastomer 8 from falling out of the channel 7 and thus act as an axial protection portion.

[0066] The electrical line 5 is designed as a flexible film, for example. The electrical line 5 extends in the elastomer 8 so that in the region of the channel 7, all sides of the electrical line 5 are completely surrounded by the elastomer 8. This results in a particularly good sealing effect of the elastomer 8. For this purpose, the line 5 is arranged in the elastomer 8 in a particularly central manner. The contact pressure generated by the arrangement of the elastomer 8 in the channel 7 also acts on the electrical line 5, so that the electrical line is arranged in the elastomer 8 in a sealed manner without additional auxiliary means.

[0067] In particular, the electrical line 5 has a third width, wherein the third width is smaller than the second width B2 of the elastomer 8. Therefore, the line 5 is completely surrounded laterally by the elastomer 8 in the channel 7.

[0068] This design of the connection assembly 11 using the elastomer 8 makes high tolerances possible. This means that greater tolerances can be accepted in the production of the channel 7 and the design of the elastomer 8 without impairing the sealing effect. In addition, the connection assembly 11 has a vibration damping effect during operation due to the elastomer 8.

[0069] Figure 5 , Figure 6 and Figure 7 Possible configurations of the elastomer body 8 of the proposed connecting assembly are shown in each case in cross section.

[0070] Figure 5 An exemplary first design scheme with a one-piece elastomer 8 is shown, which has a slit 12 that penetrates the elastomer 8 in the longitudinal direction. Here, the elastomer 8 surrounds the slit 12 in a single piece. This means that the slit 12 is closed in the radial direction. Therefore, the slit 12 does not pass into the side of the elastomer 8. The width of the slit 12 is smaller than the above-mentioned second width B2 of the elastomer 8 for this purpose. Preferably, the width of the slit 12 corresponds to the width of the electrical line 5. The electrical line 5 is led through the slit 12. In this way, a particularly airtight placement of the line 5 in the elastomer 8 can be achieved without unnecessary additional slits. In particular, the slit 12 is arranged centrally in the elastomer 8. As a result, the slit 12 and the electrical line 5 are uniformly surrounded by the elastomer 8. This design scheme obtains a particularly safe sealing of the line 5 and the channel in the housing partition wall.

[0071] Figure 6 An exemplary second design of the elastomer 8 in the connecting assembly 11a is shown. Here, the elastomer 8 is constructed in one piece. The elastomer has an upper side 13 and a lower side 14 that can be opened relative to each other. Therefore, the elastomer 8 has an (open) first side 15 that allows the upper side 13 and the lower side 14 to be opened there, and oppositely has a second (closed) side that cannot be opened and connects the upper side 13 and the lower side 14 in one piece. Here, the electrical line 5 is arranged in the gap constructed between the upper side 13 and the lower side 14. In this design, the electrical line 5 can be moved laterally into the elastomer 8 via the open side 14 until the line abuts against the side that cannot be opened. As a result, the electrical line 5 can be positioned very simply and centrally in the elastomer 8.

[0072] Figure 7The third exemplary design of the connecting assembly 11b is shown. Here, the elastomer 8 is constructed in two parts. Therefore, the elastomer has an upper part 16 and a lower part 17 separated therefrom. The electric line 5 is arranged between the upper part 16 and the lower part 17. Here, the upper part 16 and the lower part 17 can have approximately the same vertical part height. The upper part 16 and the lower part 17 can be constructed identically to each other. The upper part and the lower part 16, 17 can then be made using the same tool. Thus, inexpensive manufacturing and simple placement of the electric line 5 can be achieved. Before the elastomer 8 is installed in the channel 7, the electric line 5 is easily inserted between the upper part 16 and the lower part 17. Subsequently, the parts 16, 17 of the elastomer 8 spliced ​​in this way are introduced into the channel 7 together with the electric line 5 arranged in the middle.

[0073] Figure 8 Schematic diagram for making Figures 3 to 7 Possible methods of connecting components 11, 11a, 11b.

[0074] In this case, in a first step S1 , a channel 7 having a first height H1 , a first length L1 and a first width B1 is introduced into the housing partition wall 3 by means of a suitable tool, for example by milling.

[0075] Furthermore, a foam elastic body 8 is provided which has a vertical second height H2, a second length L2 and a second width B2 in a relaxed state.

[0076] In a second step S2, the electrical line 5 is introduced into the elastomer 8, for example by being moved through the slot 12 ( Figure 5 ), or by inserting between the two sides 13, 14 of the elastic body 8 ( Figure 6 ), or by inserting it between two separated parts 16, 17 of the elastic body ( Figure 7 ).

[0077] In the third step S3, the elastic body 8 is elastically compressed and introduced into the channel 7 until a first overhang 9 and a second overhang 10 are formed on both sides of the channel 7. Thus, the elastic body 8 is protected from falling out of the channel 7 at the same time.

[0078] The arrangement of the elastic body 8 in the channel 7 generates a contact pressure which seals the electrical line 5 and the channel 7. Thus, the first housing chamber 1 and the second housing chamber 2 are separated from each other to prevent the medium from passing through, and the channel 7 is thus sealed.

[0079] In a fourth step S4 , the first electrical contact partner 4 is electrically connected to the second electrical contact partner 6 by means of the electrical line 5 .

[0080] Reference numerals list

[0081] 101 first housing chamber

[0082] 102 second housing chamber

[0083] 103 Shell partition wall

[0084] 104 Circuit Board

[0085] 105 Flexible membrane

[0086] 106 Sensors

[0087] 107 Seals

[0088] 108 protrusion

[0089] 1 First housing chamber

[0090] 2 Second housing chamber

[0091] 3 Shell partition wall

[0092] 4 Circuit Board

[0093] 5 Electric lines

[0094] 6 Connection

[0095] 7 channels

[0096] 8 Elastomer

[0097] 9 First excess

[0098] 10 Second excess

[0099] 11, 11a, 11b Connection components

[0100] 12 Gap

[0101] 13 upper side

[0102] 14 Lower side

[0103] 15 Foldable side panels

[0104] 16 Upper part

[0105] 17 Lower part

[0106] H1, H2 Height

[0107] L1, L2 length

[0108] B1, B2 Width

Claims

1. A connection assembly between two housing chambers (1, 2) of a control device, the connection assembly comprising a control device housing with two housing chambers (1, 2) and a housing partition wall (3) separating the first housing chamber (1) and the second housing chamber (2) from each other, wherein: The first housing chamber (1) is configured as a dry chamber, and at least one first electrical contact partner is arranged in the dry chamber, and the second housing chamber (2) is configured as a wet chamber, and at least one second electrical contact partner is arranged in the wet chamber, wherein an electrical line (5) electrically connects the first electrical contact partner and the second electrical contact partner to each other, characterized in that The electrical line (5) extends through a channel (7) in the housing partition wall (3), and a foamed elastomer (8) is arranged in the channel (7) and seals the channel (7).

2. The connection assembly according to claim 1, characterized in that: The elastomer (8) is pressed into the channel (7) so that the elastomer (8) exerts contact pressure on the housing partition wall (3) and the electrical line (5) in the region of the channel (7), so that the elastomer seals the channel (7).

3. The connection assembly according to claim 1 or 2, characterized in that: The electrical line (5) is arranged in the elastic body (8) so that the electrical line (5) is completely surrounded laterally by the elastic body (8) in the channel (7).

4. The connection assembly according to claim 1 or 2, characterized in that: The elastic body (8) is made of sponge rubber.

5. The connection assembly according to claim 1 or 2, characterized in that: The elastomer (8) is constructed as ethylene-propylene-diene rubber.

6. The connection assembly according to claim 1 or 2, characterized in that: The elastic body (8) is designed in at least two parts and has an upper part (16) and a lower part (17), wherein the electrical line (5) is arranged between the upper part (16) and the lower part (17).

7. The connection assembly according to claim 1 or 2, characterized in that: The elastic body (8) is one-piece and has an upper side (13) and an underside (14) which can be folded open relative to one another, wherein the electrical line (5) is arranged between the upper side (13) and the underside (14).

8. The connection assembly according to claim 1 or 2, characterized in that: The elastomer (8) has a slot (12) which is surrounded in one piece by the elastomer (8), wherein the electrical line (5) is arranged in the slot (12).

9. An electronic module for a vehicle, comprising a connection assembly according to any one of claims 1 to 8.

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