Housing for a printed circuit board of a control unit for a transmission of a vehicle, control unit and control system for a transmission of a vehicle and method for assembling a control system for a transmission of a vehicle

Abstract

Housing (120) for a printed circuit board (110) of a control unit (100) for a transmission of a vehicle, wherein the printed circuit board (110) has electrical contacts (114) arranged in a contacting area (112) for connecting electrical lines (170) associated with transmission control elements, wherein the lines (170) run between the printed circuit board (110) and the housing (120), wherein the electrical lines (170) are individual wires or strands of a cable connected to the transmission control elements, characterized in that the housing (120) has a fixing area (122) formed integrally with the housing (120), which is designed to fix the electrical lines (170) connectable to the electrical contacts (114) of the printed circuit board (110) when the housing (120) is attached to the printed circuit board (110),wherein the fixing region (122) is arranged facing the contacting region (112) of the circuit board (110) in a state fastened to the circuit board and is designed to fix the electrical lines (170) connectable to the electrical contacts (114) in the contacting region (112) of the circuit board (110), wherein the fixing region (122) has a clamping region (124) which is designed to clamp a section of the electrical lines (170) connectable to the electrical contacts (114) against the circuit board (110) in a state fastened to the circuit board, wherein the clamping region (124) is designed as a clamping projection.

Description

[0001] The present invention relates to a housing for a printed circuit board of a control unit for a transmission of a vehicle, to a control unit for a transmission of a vehicle, to a control system for a transmission of a vehicle and to a method for assembling a control system for a transmission of a vehicle.

[0002] Transmission control units for vehicle transmissions comprise a central electronic control unit to which additional control components, such as sensors, valves, a connector for connecting to other vehicle systems, and the like, can be connected. The electronic control unit is typically protected from harmful environmental influences by a housing.

[0003] DE 10 2008 051 286 A1 describes a contacting device for printed circuit boards comprising several contact elements that directly electrically contact the circuit board's conductor tracks via contact points. The contact elements are connected to stranded wires via clamping and cutting connections and are combined in a connector housing. An additional strain relief device is provided to protect the clamping and cutting connections in the contact elements.

[0004] DE 10 2007 045 511 A1 discloses a housing concept for integrated control electronics, comprising a housing base, a circuit board equipped with electronic components of the central control electronics, and a signal and power distribution component as an electrical connection between the central control electronics and peripheral components. The circuit board is electrically and mechanically connected to the signal and power distribution component in an overlapping area. According to the invention, PCBs (printed circuit boards), for example, can be used as signal and power distribution components. It is equally possible to use multilayer flexible printed circuit boards as signal and power distribution components.

[0005] DE 10 2007 032 594 A1 relates to a control device and a method for producing a control device, wherein a base plate has a continuous recess which is designed and arranged to supply a casting compound into an interior space between the base plate and a cover plate, wherein the casting compound is designed for at least partial, vibration-damping enclosing of a circuit carrier and / or a conductor track carrier.

[0006] DE 197 20 167 A1 relates to a structure for connecting a plurality of electrical components spaced apart from one another to a central unit, wherein the components have connection contacts which are connected to connection contacts of the central unit via conductor tracks.

[0007] US 4,342,946 A discloses automated time-delay circuits for turning off the headlights of motor vehicles a predetermined time after the vehicle's ignition is turned off. A housing is provided which consists of two molded parts. One of these parts is a generally flat base on which the raised platform and an edge parapet are molded. Upstanding circuit board support pedestals are molded onto the base to support a planar circuit board in parallel. The other molded part of the housing is a hollow, concave cover which has a large, box-like enclosure covering the circuit board and a smaller enclosure with a roof-like shelf extending over the platform of the base. Wires are kinked as they pass between divider posts on the platform and crenellations on the parapet.

[0008] DE 25 20 837 A1 relates to electrical plugs and terminals used therein, and in particular to self-insulating electrical plugs and terminals.

[0009] Against this background, the present invention provides an improved housing for a circuit board of a control unit for a vehicle transmission, an improved control unit for a vehicle transmission, an improved control system for a vehicle transmission, and an improved method for assembling a control system for a vehicle transmission, according to the main claims. Advantageous embodiments emerge from the subclaims and the following description.

[0010] The present invention provides a housing for a printed circuit board of a control unit for a transmission of a vehicle, wherein the printed circuit board has electrical contacts arranged in a contacting region for connecting electrical lines associated with transmission control elements, wherein the lines run between the printed circuit board and the housing, wherein the electrical lines are individual wires or strands of a cable connected to the transmission control elements, characterized in that the housing has a fixing region formed integrally with the housing, which is designed to fix the electrical lines connectable to the electrical contacts of the printed circuit board when the housing is attached to the printed circuit board, wherein the fixing region, when attached to the printed circuit board, is arranged facing the contacting region of the printed circuit board and is designedto fix the electrical lines connectable to the electrical contacts in the contacting area of ​​the printed circuit board, wherein the fixing area has a clamping area designed to clamp a portion of the electrical lines connectable to the electrical contacts against the printed circuit board in a state fastened to the printed circuit board, wherein the clamping area is designed as a clamping projection.

[0011] The vehicle can be a motor vehicle, such as a passenger car or truck, with a manual or automatic transmission. The control unit can assume a central function in the transmission control. The housing for the printed circuit board can provide mechanical protection and / or a heat dissipation function for the printed circuit board. The printed circuit board can be a circuit board as is known in the corresponding field. The electrical contacts can be suitable connecting elements for connecting the other transmission control elements to the control unit. The electrical lines can be individual wires or strands of a cable that is connected to the other transmission control elements.The control unit housing is designed in such a way that the fixing area can secure the electrical wires, which can be connected to the electrical contacts in the contact area of ​​the circuit board for connecting the additional transmission control elements, when the housing is attached to the circuit board. The fixing area can limit the degrees of freedom of possible movement of the electrical wires or completely prevent any movement.

[0012] The present invention further provides a control unit for a transmission of a vehicle, the control unit having the following features: a printed circuit board with electrical contacts arranged in a contacting area for connecting electrical lines associated with further transmission control elements; and a housing according to the invention.

[0013] In conjunction with the above control unit, a housing according to embodiments of the present invention can be advantageously used. The housing can be a housing half that covers a first of two main surfaces of the circuit board when the housing is attached to the circuit board. The electrical contacts of the circuit board are arranged on the first main surface of the circuit board that can be covered by the housing. A further housing half can be attached to the second main surface of the circuit board. The further housing half can also be a housing according to embodiments of the invention. The second main surface of the circuit board can also serve, over its entire surface or in part, to attach the control unit to a transmission element. The transmission element can be, for example, a hydraulic switching plate or a transmission housing.In this case, attachment can be made, for example, to a surface of the hydraulic switch plate arranged inside the transmission housing or to an inner surface of the transmission housing. The other housing half is thus represented by the transmission element. The printed circuit board can be multi-layered. The electrical components of the control unit are arranged on the printed circuit board. For this purpose, electrical components are arranged in a component area of ​​the printed circuit board. The electrical components can be switching elements, logic elements and other suitable electrical or electronic components. Electrical connections of the electrical components are electrically conductively connected to the conductor tracks of the printed circuit board. At least some of the conductor tracks of the printed circuit board are connected to the electrical contacts arranged in the contact area of ​​the printed circuit board.The conductor tracks can be connecting lines made of an electrically conductive material, such as copper. The conductor tracks can be printed on the circuit board. The conductor tracks can be formed in a single layer or level of a multilayer circuit board. In this way, the electrical components can be contacted via the arranged electrical contacts. The electrical contacts can be designed, for example, as connection pads, plug contacts, connection sockets, or the like.

[0014] The present invention further provides a control system for a transmission of a vehicle, the control system having the following features: a control device as described above; and at least one transmission control element which is connected to the control unit by means of the electrical lines.

[0015] In conjunction with the above control system, a control unit according to an embodiment of the present invention, which comprises a housing according to an embodiment of the present invention, can be advantageously used. The additional transmission control elements can be sensors and valves that are typically used in a transmission control system.

[0016] The present invention further provides a method for assembling a control system for a transmission of a vehicle, the method comprising the following steps: Providing a housing according to the invention; Providing a printed circuit board with electrical contacts arranged in a contacting area and electronic components arranged in a component area, which are electrically connected to the electrical contacts; Connecting electrical wires associated with transmission control elements to the electrical contacts of the circuit board; and Attaching the housing to the circuit board.

[0017] In conjunction with the above method, a housing according to an embodiment of the present invention can be advantageously used or employed. During the connecting step, connections between the electrical lines and the electrical contacts can be implemented as a non-detachable material connection or as a removable force-fitting or form-fitting connection. In addition to an electrically conductive connection, a mechanical connection can also be established between the control unit and the electrical lines or connecting cables to the other transmission control elements. During the attaching step, the housing can represent a housing half or housing half-shell. The housing part can cover a component area on the first main surface of the printed circuit board.The housing, together with the first main surface of the circuit board, can form a cavity that serves to accommodate components. The electrical leads are secured by mechanical contact between the fixing area of ​​the housing and the electrical leads during the attachment step. It will be apparent to a person skilled in the art that the second main surface of the circuit board can subsequently be protected in a suitable manner by a suitable additional housing half or housing half-shell, or attached to a transmission element.

[0018] The present invention is based on the finding that a housing for a printed circuit board of a control unit for a transmission control of a vehicle can be designed such that a portion of the housing can advantageously be used for cable fixation. This is made possible by designing a section of the housing as a fixation area. When the housing is attached to a printed circuit board and the electrical lines are connected to the electrical contacts, which are required processes during assembly of the control system anyway, the fixation area can be used to fix the electrical lines of another cable assigned to a transmission control element.

[0019] Advantageously, according to one embodiment of the present invention, a structure for a housing of a mechatronic control unit in the transmission is found that is cost-effective and easy to manufacture. Various embodiments of the present invention enable a cost-, component-, and space-saving solution for the control unit or the installation of the control unit or the connection of the control unit to other transmission control elements. The cable fixation using a region of the housing designed for this purpose eliminates the need for additional components and thus reduces costs. Thus, a cost-effective and simple solution for cable fixation has been found. No further component is required to achieve strain relief for the cable. The cable fixation using the housing is inexpensive to manufacture because no additional parts are required.The existing housing, which protects the electronics, is designed accordingly.

[0020] According to the invention, the fixing region, when fastened to the circuit board, is arranged facing the contacting region of the circuit board and is designed to fix the electrical lines connectable to the electrical contacts in the contacting region of the circuit board. The housing can form a housing half or housing half-shell. The housing can cover a first of two main surfaces of the circuit board. The housing can be made of a suitable material, such as a metal or plastic. The fixing region of the housing can be arranged opposite the contacting region of the circuit board when the housing is attached to the circuit board.Fixing the electrical lines in the contact area of ​​the circuit board using a housing according to such an embodiment offers the advantage that the electrical lines do not have to be routed indirectly through a separate fixing device or the like. Such fixation close to the contact points enables uncomplicated routing of the lines directly out of the control unit. The housing thus not only provides mechanical protection for the circuit board. Furthermore, at least some of the waste heat from the control unit can be dissipated using a metallic housing.

[0021] According to the invention, the fixing region has a clamping region designed to clamp a section of the electrical lines connectable to the electrical contacts against the circuit board when fastened to the circuit board. The clamping region is designed as a clamping projection. The clamping region can protrude in the direction of the circuit board when an attachment side of the housing faces the circuit board. In this case, the clamping region can protrude less far in the direction of the circuit board than a maximum projection of the housing in the same direction. However, the difference between the projection of the clamping region and the maximum projection is less than the diameter of an electrical line to be connected. Such an embodiment offers the advantage that the electrical lines can be securely fixed, whereby they only need to be fixed over a short section of their length.

[0022] Recesses for the electrical lines can be provided, which are formed in an end surface of the fixing region facing the circuit board. The end surface of the fixing region can have recesses in the form of elongated grooves or the like for the electrical lines. The end surface of the fixing region can represent an end surface of the clamping region. The lines can be accommodated in the recesses at least partially. The recesses can extend over at least part of a dimension of the end surface of the clamping region. The recesses can run essentially parallel to one another. The depth of the recesses can be suitably dimensioned so that the fixation of the lines is ensured and the end surface is overall closer to the circuit board. Thus, a sealing function of the housing according to such an embodiment can be improved.Furthermore, slipping of the cables across their longitudinal extension can be prevented.

[0023] According to one embodiment, a recess can be provided in the housing, which is designed to form an at least partially closed cavity around the electrical contacts of the circuit board. The recess of the housing can therefore be arranged opposite the contacting region of the circuit board when the housing is attached to the circuit board. In addition, the recess of the housing can border on the fixing region of the housing or be part of it. The fixing region can also form a side wall of the recess. The recess can be dimensioned such that the electrical contacts can be received in it when the housing is attached to the circuit board. End regions of at least some side walls of the recess are also designed to bear against the circuit board. In particular, in the case that the fixing region orThe clamping area forms a side wall of the recess, and the end regions of all side walls of the recess except for the side wall formed by the fixing area or clamping area rest against the circuit board when the housing is attached to the circuit board. Such an embodiment offers the advantage that the electrical contacts and terminal ends of the electrical leads connected to the contacts are protected in a cavity formed by the circuit board and the recess.

[0024] The recess can have web elements that extend essentially parallel in the recess and are designed to separate the electrical lines that can be connected to the electrical contacts. The web elements can be intermediate webs, rib elements or the like. The web elements are formed integrally with the housing. The web elements can also be designed to separate the electrical contacts themselves when the housing is attached to the circuit board. The web elements in the recess can improve the chip protection function of the housing for the electrical lines and contacts. The reliability of the electrical connections between the lines and the contacts can be increased by the web elements acting as separating walls.

[0025] According to one embodiment of a control unit, a potting compound can be provided, which is applied between the fixing area of ​​the housing and the contact area of ​​the circuit board. The potting compound can be applied when the housing is connected to the circuit board. The potting compound can also be applied in other sections of the control unit. The potting compound can improve the sealing and chip protection of the control unit.

[0026] The invention is explained in more detail by way of example with reference to the accompanying drawings. They show: Fig. 1 a schematic representation of a control device according to an embodiment of the present invention and a connecting cable; Fig. 2 is a schematic sectional view of a control unit mounted on a transmission element according to an embodiment of the present invention and of a connecting line; Fig. 3 is a schematic representation of a circuit board of a control device according to an embodiment of the present invention and several connecting lines; and Fig. 4 a flowchart of a method according to an embodiment of the present invention.

[0027] In the following description of preferred embodiments of the present invention, the same or similar reference numerals are used for the elements shown in the various figures and having a similar effect, whereby a repeated description of these elements is omitted.

[0028] Fig. Figure 1 shows a schematic representation of a control unit according to an embodiment of the present invention and a connecting cable. It shows a control unit 100 comprising a printed circuit board 110 with a contacting area 112, in which, by way of example, only one electrical contact 114 is arranged, and a component area 116, in which, by way of example, only one electrical component 118 is arranged, connected to the electrical contact 114 via a conductor track 117. Furthermore, Fig. 1 shows a housing 120. The housing 120 may be in accordance with the Fig. 1, the housing 120 may be a housing upper part or a housing upper shell. The housing 120 covers a main surface of the printed circuit board 110. The housing 120 has a fixing area 122 with a clamping area 124 and a recess 126. Furthermore, in the Fig. 1 shows an electrical line or connecting line 170. The connecting line 170 is connected to the electrical contact 114.

[0029] Even if in Fig. 1 only one electrical contact 114 is shown in the contacting area 112, in practice a plurality of electrical contacts 114 can be provided. This possibility is shown in Fig. 1 is not shown in the illustration due to space constraints. Although Fig. 1 only one electrical component 118 is shown in the component area 116, in practice a plurality of electrical components 118 may be provided. This possibility is shown in Fig. 1 is also not realized in the illustration due to space constraints. Likewise, in Fig. 1 only one conductor track 117 is shown by way of example, although in practice a plurality of conductor tracks 117 may be provided, depending on the number of electrical contacts 114 and / or electrical components 118. Likewise, although in Fig. 1 only one connecting line 170 is shown by way of example, in practice two or more connecting lines 170 may be provided, each of which may be connected to one of the electrical contacts 114.

[0030] The circuit board 110 is covered by the housing 120. In Fig. 1, solid lines represent areas or features of the housing 120. The printed circuit board 110 may be a circuit board or the like made of a suitable material. The contacting area 112 of the printed circuit board 110 is covered by the housing 120. The contacting area 112 of the printed circuit board 110 is arranged within the housing 120. The contacting area 112 of the printed circuit board 110 has a plurality of electrical contacts 114, even if in Fig. 1 only one such electrical contact 114 is shown. In the contacting area 112 of the circuit board 110, the electrical contacts 114 can be combined to form a common contact device or form a plurality of contact devices. The electrical contacts 114 of the contacting area 112 are arranged within the recess 126 of the housing 120. The recess 126 of the housing 120, together with the circuit board 110, forms a cavity in the contacting area 112 in which the electrical contacts 114 are arranged. Sections of the contacting area 112 in which no electrical contacts 114 are arranged are covered by the fixing area 122 and the clamping area 124. The recess 126 of the housing 120 can also cover sections of the circuit board 110 that are arranged outside the contacting area 112.Alternatively, the recess 126 of the housing 120 may extend only within the contacting area 112.

[0031] The connecting cable 170 can be assigned to additional transmission control elements. The connecting cable 170 is connected to the electrical contact 114 in the contacting area 112 of the printed circuit board 110. The connecting cable 170 extends from an edge of the control unit 100, where it enters the control unit, across the contacting area 112 of the printed circuit board 110 to the electrical contact 114 to which it is connected. The connecting cable 170 runs between the printed circuit board 110 and the housing 120. A portion of the connecting cable 170 runs between the electrical contact 114 and the edge of the printed circuit board 110 in a section of the contacting area 112 that is covered by the fixing area 122 and the clamping area 124. This part of the connecting cable 170 is fixed to the circuit board 110 or the contacting area 112 by the fixing area 122 or the clamping area 124.The fixing region 122 and / or the clamping region 124 of the housing 120 can also cover sections of the circuit board 110 that are located outside the contacting region 112. Alternatively, the fixing region 122 and / or the clamping region 124 of the housing 120 can extend only within the contacting region 112.

[0032] The component area 116 of the circuit board 110 is covered by the housing 120. The component area 116 of the circuit board 110 is arranged inside or below the housing 120. Even if it is in Fig. 1, the component region 116 may comprise a plurality of electrical components 118, which may be electronic components such as switching elements, logic elements, or the like. The printed circuit board 110 comprises a plurality of conductor tracks 117 between the contacting region 112 and the component region 116, of which Fig. 1, only one is shown by way of example, and which connect the electrical contacts 114 and the electrical components 118 to one another. If the housing 120 is arranged on a main surface of the circuit board 110, wherein no component region 116 with electrical components 118 is arranged on this main surface, the housing 120 can be attached directly or indirectly to the main surface of the circuit board 110. If the housing 120 is arranged on a main surface of the circuit board 110, wherein the component region 116 with electronic components 118 is arranged on this main surface, the housing 120, together with the circuit board 110, can form a closed interior space in the component region 116, in which the electrical components 118 of this main surface are arranged. The interior space can be sealed in a fluid-tight manner with respect to the environment of the control unit 100.

[0033] Fig. Figure 2 shows a schematic sectional view of a control unit mounted on a transmission element according to an embodiment of the present invention, along with a connecting cable. Shown is a control unit comprising a printed circuit board 110 with an electrical contact 114, a housing 120 with a clamping region 124, and a recess 126. A connecting cable 170 is connected to the electrical contact 114 of the printed circuit board 110 of the control unit. Also shown is a sealing element 282, which is arranged between the printed circuit board 110 and the housing 120. The control unit 100 can be a control unit such as the control unit from Fig. 1. The housing 120 may be a housing half-shell that is arranged on a first main surface of the printed circuit board 110. The sealing element 282 is thus arranged between the first main surface of the printed circuit board 110 and the housing 120. The sealing element 282 is designed to provide a sealing function for a component area to be covered by the housing (in Fig. 2 not shown) of the circuit board 110.

[0034] Furthermore, in Fig. 2 shows a heat-conducting agent 284 arranged between a second main surface of the circuit board 110 and a gear element 290. The heat-conducting agent 284 can be applied in the form of an intermediate layer between the second main surface of the circuit board 110 and the gear element 290. The control unit is attached to the gear element 290. In particular, the second main surface of the circuit board 110 is attached to the gear element 290. The control unit is fastened in a partial area of ​​a surface of the gear element 290. The gear element 290 can be a gear housing or a hydraulic switching plate or control, as is known to a person skilled in the art in the field of electronically controlled transmissions. The transmission element 290 acts according to the Fig. 2 as a further housing half-shell for the printed circuit board 110. Thus, the housing 120 and the gear element 290 form a complete housing for the printed circuit board 110 of the control unit.

[0035] The circuit board 110 has, as shown in Fig. 2 has a first main surface facing away from the gear element 290 and a second main surface facing the gear element 290. The electrical contact 114 is arranged on the main surface of the circuit board 110 facing away from the gear element 290. The housing 120 is arranged on the main surface of the circuit board 110 facing away from the gear element 290. The recess 126 of the housing 120 forms a partially enclosed interior space around the electrical contact 114 on the main surface of the circuit board 110 facing away from the gear element 290. Thus, the electrical contact 114 is arranged on the main surface of the circuit board 110 facing away from the gear element 290 within the recess 126 of the housing 120. According to the Fig. 2, the clamping region 124 of the housing 120 forms a side wall of the recess 126. At the same time, the clamping region 124 forms an outer section of the housing 120 in an edge region of the printed circuit board 110. The clamping region 124 projects from a region of the recess 126 that is furthest away from the printed circuit board 110 in the direction of the main surface of the printed circuit board 110 facing away from the gear element 290. Even if in Fig. 2 for graphic reasons, an end surface of the clamping area 124 is in mechanical contact with the connecting lead 170. The connecting lead 170 is clamped between the end surface of the clamping area 124 of the housing 120 and the circuit board 110. This clamping can protect the connecting lead 170 connected to the electrical contact 114 of the circuit board 110 from being separated from the electrical contact 114 due to tensile stress.

[0036] The housing 120 rests against the circuit board 110 in partial areas of the main surface of the circuit board 110 facing away from the gear element 290. This is the case, for example, on both sides of the sealing element 282. In the sectional view according to Fig. 2, the housing 120 rests in two areas on the main surface of the circuit board 110 facing away from the gear element 290. Between these contact areas, a sealing recess is formed in the housing 120, in which the sealing element 282 is arranged. The sealing element 282 rests on three of the four sides against the sealing recess in the housing 120 and rests on one of the four sides against the main surface of the circuit board 110 facing away from the gear element 290.

[0037] Fig. Figure 3 shows a schematic representation of a circuit board of a control unit according to an embodiment of the present invention, as well as a plurality of connecting lines. Shown are a circuit board with a contacting area 112 and a plurality of connecting lines 170. The circuit board 110 can be a circuit board of a control unit, such as the control unit of Fig. 1 act. In Fig. 3 shows six connecting lines 170 as an example. Each of the connecting lines 170 is provided with an electrical contact (in Fig. 3 not explicitly shown) in the contacting area 112 of the circuit board 110. According to the Fig. In the embodiment of the present invention shown in Figure 3, the connecting lines 170 can be connected to the electrical contacts of the contacting area 112 of the printed circuit board 110 by means of a crimping technique.

[0038] Fig. Figure 4 shows a flowchart of a method according to an embodiment of the present invention. It shows a method 400 for assembling a control system for a transmission of a vehicle, comprising steps 410, 420, 430, and 440. The method 400 includes a step of providing 410 a housing. The housing may be the housing made of Fig. 1 and / or Fig. 2. The method 400 also includes a step of providing 420 a printed circuit board with electrical contacts arranged in a contacting region and electronic components arranged in a component region, which are electrically connected to the electrical contacts. It should be noted that the order of the providing steps 410 and 420 can be arbitrary. The method 400 further includes a step of connecting 430 electrical lines associated with transmission control elements to the electrical contacts of the printed circuit board. Finally, the method 400 also includes a step of attaching 440 the housing to the printed circuit board.

[0039] In the following, the design and assembly of a control system are described with reference to the Fig. 1 to 4 are summarized using various embodiments.

[0040] According to one embodiment of the present invention, the connection of a cable set comprising electrical lines 170 to the circuit board 110 of the control unit 100 in the transmission is carried out as follows. Individual wires of the electrical lines or connecting lines 170 are electrically connected to the electrical contacts 114 on the circuit board 110. This can be done, for example, by soldering and connecting with through-holes or lying flat on the circuit board 110, or by crimping, as described in Fig.3. In order to achieve strain relief of the electrical lines 170, i.e. so that the individual wires or the electrical lines 170 cannot become detached from the printed circuit board 110 again, the individual wires or the electrical lines 170 are clamped by the housing 120, which in control units is placed on the printed circuit board 110 to protect the electronic components. The housing 120 can also simultaneously serve as chip protection for the individual wires. According to a further exemplary embodiment of the present invention, the web elements in the form of intermediate webs between the individual wires or the electrical lines 170 can, if required, also be formed integrally with the housing 120. Alternatively, according to a further exemplary embodiment of the present invention, potting compound can also be partially applied as protection against chips and metal particles.

[0041] Embodiments of the present invention thus enable the creation of a cost-reduced housing of the control electronics within the transmission.

[0042] The embodiments described and shown in the figures are selected only as examples. Different embodiments can be combined with each other completely or with regard to individual features. Furthermore, one embodiment can be supplemented by features of another embodiment. Reference symbol 100 control unit 110 circuit board 112 Contact area 114 electrical contact 116 Components area 117 Conductor track 118 Component 120 housings 122 Fixation area 124 clamping range 126 Deepening 170 electrical lines 282 Sealing element 284 Thermal interfaces 290 Gear element 400 procedures 410 first step of deployment 420 second step of provisioning 430 Step of connection 440 Step of attachment

Claims

[1] Housing (120) for a printed circuit board (110) of a control unit (100) for a transmission of a vehicle, wherein the printed circuit board (110) has electrical contacts (114) arranged in a contacting area (112) for connecting electrical lines (170) associated with transmission control elements, wherein the lines (170) run between the printed circuit board (110) and the housing (120), wherein the electrical lines (170) are individual wires or strands of a cable which is connected to the transmission control elements, characterized bythat the housing (120) has a fixing region (122) formed in one piece with the housing (120), which is designed to fix the electrical lines (170) connectable to the electrical contacts (114) of the printed circuit board (110) when the housing (120) is attached to the printed circuit board (110), wherein the fixing region (122) is arranged facing the contacting region (112) of the printed circuit board (110) in a state fastened to the printed circuit board and is designed to fix the electrical lines (170) connectable to the electrical contacts (114) in the contacting region (112) of the printed circuit board (110), wherein the fixing region (122) has a clamping region (124) which is designed to clamp a section of the electrical lines (170) connectable to the electrical contacts (114) against the circuit board (110) to clamp,wherein the clamping area (124) is designed as a clamping projection., [2] Housing (120) according to claim 1, characterized by Recesses for the electrical lines (170) formed in an end surface of the fixing area (122) facing the circuit board. [3] Housing (120) according to one of the preceding claims, characterized by a recess (126) configured to form an at least partially enclosed cavity around the electrical contacts (114) of the circuit board (110). [4] Housing (120) according to claim 3, characterized by that the recess (126) has web elements which extend substantially parallel in the recess (126) and are designed to separate the electrical lines (170) which can be connected to the electrical contacts (114). [5] Control unit (100) for a transmission of a vehicle, the control unit (100) having the following features: a printed circuit board (110) with electrical contacts (114) arranged in a contacting area (112) for connecting electrical lines (170) associated with further transmission control elements; and a housing (120) according to one of claims 1 to 4. [6] Control device (100) according to claim 5, characterized by a potting compound applied between the fixing area (122) of the housing (120) and the contacting area (112) of the printed circuit board (110). [7] Control system for a transmission of a vehicle, the control system having the following features: a control device (100) according to claim 5 or 6; and at least one transmission control element which is connected to the control unit (100) by means of the electrical lines (170). [8] A method (400) for assembling a control system for a transmission of a vehicle, the method (400) comprising the following steps: Providing (410) a housing (120) according to one of claims 1 to 4; Providing (420) a printed circuit board (110) with electrical contacts (114) arranged in a contacting area (112) and electronic components (118) arranged in a component area (116) which are electrically connected to the electrical contacts (114); Connecting (430) electrical lines (170) associated with transmission control elements to the electrical contacts (114) of the printed circuit board (110); and Attaching (440) the housing (120) to the circuit board (110).

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