EP3748111B1 - Motor vehicle lock - Google Patents

Description

The invention relates to a motor vehicle lock according to claim 1 and a method for producing such a motor vehicle lock according to claim 17.

The motor vehicle lock in question is equipped with a locking mechanism, which regularly has the locking elements “lock latch” and “pawl”, and with a lock housing structure. The motor vehicle lock has motor functions such as opening the locking mechanism.

the DE 10 2015 109494 A1 shows a motor vehicle lock with a locking mechanism and a lock housing structure with a motor drive arrangement.

A control unit for controlling the drive arrangement is also provided. The lock housing structure also has an inner housing part equipped with the lock mechanism and the drive arrangement and a control housing part equipped with a control circuit board. Also provided is a lead frame of lead frames extending along the board plane to allow the control board to be electrically connected to other components to simplify wiring configurations and arrangements for the vehicle subsystems.

Another well-known motor vehicle lock ( DE 20 2013 103 042 U1 ) shows a drive arrangement with an electric drive motor, which is used to lift the pawl of the barrage. In order to ensure this opening function even if the on-board electrical system of the motor vehicle fails, the lock housing structure accommodates a capacitive energy storage arrangement. In the event of an emergency, an electrical voltage supply is available for the drive arrangement or a control unit assigned to the drive arrangement.

In view of the fact that the actuation of the drive arrangement is a safety-relevant function, depending on the design, it is desirable to provide the relevant control components so that they can be pre-assembled and thus pre-tested. However, this is regularly accompanied by a restriction of the structural flexibility, in particular with regard to the position of the drive arrangement.

The invention is based on the problem of designing and developing the known motor vehicle lock in such a way that the control of the drive arrangement involved components are pre-assembled and that at the same time a high degree of structural flexibility in terms of the location of the drive assembly is guaranteed at low cost.

A motor vehicle lock, in which the drive arrangement is arranged separately from the locking mechanism in a separate fluid-tight housing is from U.S. 9,353,556 B2 famous. From the DE 11 2014 004 455 T5 is a motor vehicle lock known, in which the storage arrangement and the drive arrangement is electrically connected directly to the printed circuit board.

The above problem is solved by a motor vehicle lock according to claim 1.

The fundamental consideration is that with a special design of the lock housing structure, the use of a stamped grid made of stamped grid lines for connecting the drive arrangement can fully accommodate both the desire for preassembly and the desire for design flexibility.

In detail, it is proposed that the lock housing structure has an inner housing part equipped with the locking mechanism and the drive arrangement, a housing cover for closing an upper side of the inner housing part and between the inner housing part and the housing cover a control housing part equipped with a flat control circuit board of the control unit and the energy storage arrangement. This design of the lock housing structure allows the above-mentioned pre-assembly of the control circuit board and the energy storage arrangement, in that the control housing part is equipped with these control components and, if necessary, further control components. This allows a self-contained functional unit to be built on the control housing part, which can already be subjected to a functional test in the pre-assembled state.

In detail, it is further proposed that the control housing part is assigned a leadframe made of leadframe lines extending at least in sections along the plane of the circuit board, with at least part of the drive arrangement being electrically connected to the control circuit board via the leadframe lines of the leadframe. This means that the arrangement of the drive arrangement is not limited to the extension of the control circuit board, but that the drive arrangement can be arranged largely arbitrarily with a suitable design of the stamped grid. Due to the fact that the stamped grid extends at least in sections along the board level of the control board, the drive arrangement can be arranged laterally offset to the control board as desired along the board level. In addition, the control board can be designed independently of the position of the drive arrangement. This results in the possibility of reducing the expansion of the control board in the board level. Furthermore, the control board can have a simple shape, especially rectangular or square, since the control board no longer necessarily has to extend towards the drive arrangement.

Preferred variants for the connection and arrangement of the energy storage arrangement are the subject of claims 2 and 3. In particular, the electrical connection of the energy storage arrangement to the control board via lead frame lines of the lead frame according to claim 2 enables the energy storage arrangement to be positioned laterally offset relative to the control board according to claim 3. This Spatial decoupling of the energy storage arrangement from the control board also leads to a high level of structural flexibility here, on the one hand with regard to the position of the energy storage arrangement and, on the other hand, with regard to the design of the control board.

The drive arrangement and/or the control circuit board and/or the energy storage arrangement is or are preferably connected directly to the pressed screen, that is to say without intermediate connecting elements. For this purpose, according to claim 4, the use of a plug connection or plug connections is proposed. On the one hand, such a plug-in connection is easy to produce and, on the other hand, with a suitable design it is insensitive to mechanical tolerances.

A particularly compact design is obtained with the arrangement of the control circuit board and energy storage arrangement on top of the partition of the control housing part and the arrangement of the drive arrangement on the underside of the partition of the control housing part. In this case, the dividing wall can also preferably be used as a carrier for the stamped grid, in that the stamped grid is let into the dividing wall, preferably using the plastic injection molding process. For this purpose, the dividing wall is of course made of a plastic material.

The above offset position of the drive arrangement and, if applicable, the energy storage arrangement relative to the control circuit board results from a special design of the pressed screen lines with a connecting piece and two connection tongues arranged at the ends of the connecting piece. One of these stamped grid lines therefore has two terminal tongues located opposite one another at the ends.

The connection tongues are preferably part of the plug connection mentioned above, so that the connecting piece provides a counter bearing when the plug connection is produced. In this context, it is particularly advantageous if the connecting piece is embedded in the partition wall, as mentioned above.

Preferred configurations for the connection tongues of the pressed screen lines are the subject matter of claims 7 to 9. It is clear here that an extraordinarily high structural flexibility can be achieved with the proposed pressed screen.

The further preferred configurations according to claims 10 to 12 relate to preferred design variants for the lock housing structure. It is important that the control housing part interacts with the housing cover in order to form at least one essentially closed chamber for accommodating the energy storage arrangement and/or the control circuit board (claim 12).

The likewise preferred configurations according to claims 13 and 14 relate to preferred assembly movements which are associated with the production of the respective plug-in connection. It is interesting according to claim 14 that the assembly movement is also accompanied by a clamping attachment of the energy storage arrangement to the control housing part.

The further preferred embodiment according to claim 15 ensures that the electrical connection of the energy storage arrangement to the pressed screen is not impaired during normal operation of the motor vehicle lock, in particular by an associated motor vehicle door slamming shut.

A particularly compact variant for connecting the motor vehicle lock to a higher-level motor vehicle control is shown in claim 16, in that the control housing part, in particular the control circuit board, is equipped with an electrical plug arrangement. For this purpose, the housing cover is preferably equipped with at least one corresponding recess through which the connector arrangement is accessible.

According to a further teaching according to claim 17, which is of independent importance, a method for producing a proposed motor vehicle lock is claimed as such.

It is essential according to the method that the control housing part is fitted with the control circuit board and the energy storage arrangement and only then is the inner housing part fitted with the control housing part. In principle, it is possible that after the control housing part has been equipped with the control circuit board and the energy storage arrangement, a function test of the functional unit preassembled in this way is carried out.

According to claim 18, the control housing part is fitted with the control circuit board and/or the energy storage arrangement, preferably by joining the control circuit board or the energy storage arrangement to the stamped grid. This can easily be implemented using a plug-in connection as described above, so that the proposed method can be implemented with particularly little effort.

Fig. 1

ein vorschlagsgemäßes Kraftfahrzeugschloss in einer teilweisen Explosionsdarstellung und

Fig. 2

das Kraftfahrzeugschloss gemäß Fig. 1 in einer teilweise geschnittenen Darstellung.

The invention is explained in more detail below with reference to a drawing that merely shows an exemplary embodiment. In the drawing shows

1

a proposed motor vehicle lock in a partially exploded view and

2

the motor vehicle lock according to 1 in a partially cut view.

The proposed motor vehicle lock 1 is used in all types of locking elements of a motor vehicle. These include, in particular, side doors, rear doors, tailgates, trunk lids, front hoods, in particular engine hoods. These closure elements can be designed in the manner of pivoting doors or in the manner of sliding doors.

1 shows that the motor vehicle lock 1 with a locking mechanism 2 from a lock latch 3 and a pawl arrangement associated with the lock latch 4 is equipped. The lock latch 3 interacts in the usual way with a locking part 5 in order to keep the associated locking element in the closed position. For this purpose, the pawl arrangement 4 of two pawls 4a, 4b blocks the lock latch 3 in its respective closed position. To open the barrage 2, the pawl assembly 4, here the pawl 4b, lift.

The locking part 5 is preferably arranged on the motor vehicle body, while the motor vehicle lock 1 is arranged on the locking element. This can also be provided the other way around.

The motor vehicle lock 1 also has a lock housing structure 6 which, as also shown in 1 is shown, is multi-part. In or on the lock housing structure 6 are a motorized drive arrangement 7 for the motorized drive of at least one mechanical lock component, here the pawl 4b, a control unit 8 for controlling the drive arrangement 7 and a preferably capacitive energy storage arrangement 9 for the electrical voltage supply of the drive arrangement 7 and/or or the control unit 8 is provided. The drive arrangement 7 has a first electric drive motor 10, which is used to lift the pawl 4b and thus to open the locking mechanism 2. In principle, the drive arrangement 7 can only have a single electric drive motor. Here, and preferably, it is the case that the drive arrangement 7 has a second drive motor 11, which is used to set mechanical locking states. A lock mechanism 12 is provided for this purpose, which can be brought into the various locking states by the second drive motor 11 .

The motor vehicle lock 1 shown and preferred in this respect is an electric lock with mechanical redundancy. This means that the locking mechanism 2 can be opened on the one hand by the drive arrangement 7 and on the other hand by manual actuation, for example via a manually deflectable outside door handle. In principle, however, the motor vehicle lock 1 can also be a purely electric lock.

It is now essential that the lock housing structure 6 has an inner housing part 13 equipped with the locking mechanism 2 and the drive arrangement 7, a housing cover 14 for closing an upper side 15 of the inner housing part 13 and between the inner housing part 13 and the housing cover 14 has a control housing part 17 equipped with a flat control circuit board 16 of the control unit 8 and the energy storage arrangement 9 . This arrangement allows the control housing part 17 to be fully equipped with the energy storage arrangement 9, the control circuit board 16 and, if necessary, further electrical or electronic components such as actuators, sensors, switches or the like. The control housing part 17 fitted in this way forms a self-contained functional unit which can already be subjected to a functional test in this pre-assembled state.

It may be pointed out that the term "closing" in connection with the housing parts, in particular with the housing cover 14, is to be interpreted broadly. This is not necessarily a closure that seals against liquid on all sides, but can also be realized in the sense of a cover. This in particular against the background that, depending on the design of the motor vehicle lock 1, passages for levers or the like may have to be provided.

It is also important that the control housing part 17 is assigned an electrically conductive stamped grid 19 made up of stamped grid lines 20, 21, which extends at least in sections along the circuit board plane 18 of the control circuit board 16, with at least part of the drive arrangement 7 being connected via the stamped grid lines 20, 21 of the stamped grid 19 is electrically connected to the control board 16. The lead frame lines 20 assigned to the drive arrangement 7 are in 2 shown. From this representation it is evident that the drive arrangement 7, in particular the drive motors 10, 11, can be arranged largely arbitrarily along the circuit board plane 18 of the control circuit board 16 without the control circuit board 16 having to have correspondingly large dimensions. Furthermore shows 2 that the production of a still to be explained plug connection with the stamped grid 19 is easily possible due to the extension of the stamped grid 19 along the board level 18, provided that the assembly movements required for this are provided transversely to the board level 18, as in the illustrated embodiment.

2 finally shows that additional electrical or electronic components, which are controlled and/or read out via the control circuit board 16, can easily be connected to the stamped grid 19.

Furthermore, it is conceivable that additional control boards 16 are provided, which in turn are connected to the pressed screen 19 .

The design flexibility that can be achieved with the proposed solution relates not only to the positioning of the drive arrangement 7, but also to the positioning of the energy storage arrangement 9. The energy storage arrangement 9 is electrically connected here and preferably also via lead frame lines 21 of the lead frame 19 to the control circuit board 16. This makes it possible, in particular, for the energy storage arrangement 9 to be positioned laterally offset relative to the control circuit board 16 along the circuit board plane 18 . In addition, it is here and preferably so that the energy storage arrangement 9 is positioned directly on or in the board level 18 of the control board 16 .

Numerous advantageous variants are conceivable for the design of the energy storage arrangement 9 . In the illustrated and to this extent preferred exemplary embodiment, the energy storage arrangement 9 is a capacitive energy storage arrangement. Such an energy storage arrangement 9 has capacitors for storing electrical energy. These capacitors are preferably supercapacitors, which are also referred to as ultracapacitors. Alternatively, the energy storage arrangement 9 can have other types of energy storage, in particular accumulators or the like.

In the illustrated and to this extent preferred exemplary embodiment, the energy storage arrangement 9 has a first capacitor 22 and a second capacitor 23, which are configured separately from one another. In principle, it can also be provided that only a single capacitor or more than two capacitors are assigned to the energy storage arrangement 9 .

Interesting in the above-mentioned lateral offset of the energy storage arrangement 9 relative to the control circuit board 16 and the connection via the Stamped grid 19 is the fact that the electrical connection between the energy storage arrangement 9 and the control circuit board 16 can be designed to be particularly insensitive to mechanical tolerances. As far as the electrical connection is concerned, relative movements between the control circuit board 16 and the energy storage arrangement 9 affect the respective other component only via the stamped grid 19 . In addition, the stamped grid 19 can be designed to be flexible, at least in sections, which further increases the insensitivity to tolerances.

In addition, the control circuit board 16 and the energy storage arrangement 9 are mounted separately from one another on the control housing part 17 in the exemplary embodiment shown and in this respect preferred, so that a mechanical interaction between these two components is further reduced. For example, mechanical vibrations of the energy storage arrangement 9 are at best transmitted to the control housing part 17 and not directly to the control circuit board 16. This mechanical decoupling leads to a mechanical protection of the control board 16 and thus to a reduction in the probability of failure of the control board 16.

In the present case, particular importance is attached to the easy-to-manufacture and tolerance-insensitive connection of lead frame 19 to the components involved. Here and preferably, this connection is a plug-in connection, which can be designed as a plug-socket connection, as an insulation displacement connection or the like. Such a plug-in connection can be produced with a simple assembly movement and, with a suitable design, allows a high degree of insensitivity to tolerances along the respective assembly movement.

In detail, it is preferably the case that the electrical connection between the drive arrangement 7 and the stamped grid 19 is designed as a plug-in connection, as shown in the illustration 2 can be seen. Here, and preferably, the plug-in connection between the drive arrangement 7 and the stamped grid 19 is a plug-socket connection 24, 25.

Alternatively or additionally, it can be provided that the electrical connection between the control circuit board 16 and the stamped grid 19 is a plug-in connection is designed. Here, too, it is according to a synopsis of 1 and 2 provided that the plug-in connection is designed as a plug-socket connection 26, so that the control board 16 can be easily plugged onto the stamped grid 19.

As a further alternative or in addition, it can be provided that the electrical connection between the energy storage arrangement 9 and the stamped grid 19 is designed as a plug-in connection. 2 shows that the plug connection is an insulation displacement connection 27, 28, which is provided between the connections 22a, 23a and the stamped grid 19. In this case, the connections 22a, 23a are of different dimensions in pairs, in accordance with the associated connection tongues, in such a way that polarity reversal of the connections 22a, 23a is ruled out.

Common to all of the plug-in connections mentioned above is that they can be manufactured easily by means of a simple assembly movement and that they are highly insensitive to mechanical tolerances.

The control housing part 17 is equipped with a partition wall 29, which runs here preferably parallel to the circuit board level 18 and defines an upper side 30 and a lower side 31 of the control housing part 17, with the control circuit board 16 and the energy storage arrangement 9 being arranged on the upper side and the drive arrangement 7 being arranged on the lower side . This basic arrangement results in a compact construction of the motor vehicle lock 1 overall. In this context, it is particularly advantageous that at least part of the stamped grid 19 is let into the partition wall 29 .

In very general terms, it is preferably the case that at least part of the stamped grid 19 is let into a housing wall of the lock housing structure 6 . This housing wall is here and preferably the partition wall 29 mentioned above.

Preferred variants for the design of the lead frame lines 20, 21 of the lead frame 19 are in 2 shown. Preferably, at least a portion of the lead frame lines 20, 21 of the lead frame 19 each have a running along the circuit board level 18, here and preferably embedded in the partition 29, Connecting piece 32, 33 with terminal tongues 34, 35; 36, 37, with the connection tongues 34, 35; 36, 37, here and preferably transversely, protrude from the partition 29. In a particularly preferred embodiment, the length of the connecting piece 32, 33 is greater than the respective lengths of the terminal tongues 34, 35; 36, 37. This takes into account the fact that the proposed offset of the drive arrangement 7 or the energy storage arrangement 9 relative to the control circuit board 16 goes beyond just a slight displacement.

At least some of the connection tongues, here the connection tongues 34, 35, 37, are preferably designed as connection pins which each provide connection plugs of a plug-socket connection. Alternatively or additionally, it can be provided that at least some of the connection tongues, here the connection tongues 36, are designed in the manner of insulation displacement terminals. Further alternatively or additionally, it can be provided that at least some of the connection tongues are designed as resilient connection elements, and/or that at least some of the connection tongues are designed as, here and preferably resilient, connection sockets. All of these preferred configurations of connection sockets are used to produce the above electrical connection to the stamped grid 19 via a plug-in connection that is easy to produce and is not sensitive to tolerances with regard to mechanical tolerances. In principle, however, the relevant electrical connections can also be produced at least in part by a conventional soldering process.

The two terminal tongues 36, 37 at the ends of at least part of the lead frame lines 20, 21, here and preferably the lead frame lines 21 assigned to the energy storage arrangement 9, preferably protrude from the partition wall 29 in the same direction. This is appropriate since both the energy storage arrangement 9 and the control circuit board 16 are arranged on the upper side 30 of the control housing part 17 .

This is different in the case of the stamped grid lines 20 assigned to the drive arrangement 7. Here it is preferably the case that the two terminal tongues 34, 35 at the ends protrude from the partition wall 29 in opposite directions. This takes into account the fact that the drive assembly 7 is arranged on the underside 31 of the control housing part 17, while the Control circuit board 16 is arranged on the upper side 30 of the control housing part 17 .

A synopsis of 1 and 2 shows further that the housing cover 14, together with the inner housing part 13, encloses the control housing part 17 completely, in particular sealingly. This results in further structural flexibility, in particular with regard to the design of the control housing part 17 and the tightness requirements that may have to be implemented there. The term "sealing" is to be understood here in the sense of a liquid-tight seal.

It follows from the representation according to 1 that the control housing part 17 has a first housing section 38 for accommodating the energy storage arrangement 9 and, separately therefrom, a second housing section 39 for accommodating the control circuit board 16. Preferably, the two housing sections 38, 39, as in 1 shown, separated from each other by a side wall 40 . It is further preferably the case that the energy storage arrangement 9 has the above-mentioned electrical connections 22a, 23a, which protrude through the side wall 40 and - from the energy storage arrangement 9 - beyond the side wall 40 in electrical connection with associated connection tongues 36 of the stamped grid 19 stand. The side wall 40 is here and preferably transverse to the above-mentioned partition 29.

Together with the housing cover 14, the control housing part 17 forms at least one chamber, which is closed in the above sense, for accommodating the energy storage arrangement 9 and/or the control circuit board 16. In the exemplary embodiment shown and in this respect preferred, it is provided that the first housing section 38 and the second housing section 39 together each form a closed chamber in the above sense with the housing cover 14 .

An assembly direction 41 is preferably assigned to the motor vehicle lock 1 , wherein the control housing part 17 can be equipped with the energy storage arrangement 9 in an assembly movement 42 in the assembly direction, producing the plug-in connection with the stamped grid 19 . Alternatively or additionally, it is provided that the control housing part 17 with the control circuit board 16 in one Assembly movement 43 in the assembly direction 41, producing the plug-in connection with the stamped grid 19, can be assembled.

As a further alternative or in addition, it is provided that the inner housing part 13 can be equipped with the control housing part 17 in an assembly movement 44 in the assembly direction 41, producing the plug-in connection with the stamped grid 19. In addition to the proposed electrical connection, the exemplary embodiment shown shows an interesting mechanical fixation of the energy storage arrangement 9. It is provided here that the control housing part 17 has a clamping arrangement 45, with the energy storage arrangement 9 being clamped during the assembly movement 42 of the energy storage arrangement 9 in the assembly direction 41 45 comes into clamping engagement with the control housing part 17. For this purpose, the clamping arrangement 45 preferably has clamping ribs 46 which extend along the assembly direction 41 . Other variants for the configuration of the clamping arrangement 45 are conceivable. A particular advantage of the clamping arrangement 45 is the fact that the assembly movement 42 of the energy storage arrangement 9 not only creates an electrical connection, but also a mechanical connection. The assembly movement, in particular of the energy storage arrangement 9, is of particular importance here, since it must be ensured that the energy storage arrangement 9, as a safety-relevant component, always has a secure electrical connection to the stamped grid 19. This relates in particular to the situation in which an associated closure element, in particular an associated motor vehicle door, slams shut, which is accompanied by a corresponding force effect on the energy storage arrangement 9 . For this purpose, the motor vehicle lock 1 is initially assigned a closing direction 47, in which the motor vehicle lock 1 runs in the assembled state when the assigned closure element is closed. It is now preferably the case that the assembly movement 42 of the energy storage arrangement 9 is oriented differently, in particular transversely, to the closing direction 47 . This ensures that the electrical connection of the energy storage arrangement 9 to the stamped grid 19 is not impaired when used as intended.

Another preferred measure for high operational reliability is that the housing cover 14 has a hold-down arrangement 48a, which acts in the assembly direction 41 in a non-positive manner on the energy storage arrangement 9, in particular on the housing of the capacitors 22, 23. This ensures that any accelerations that occur, in particular vibrations, cannot lead to an impairment of the electrical connection between the energy storage arrangement 9 and the stamped grid. Here and preferably, the hold-down arrangement 48a has web-like formations which are arranged on an inside of the housing cover 14 .

Alternatively or additionally, the housing cover 14 has a contact holder arrangement 48b, which acts in a non-positive manner on the connections 22a, 23a of the energy storage arrangement 9, in particular the capacitors 22, 23, in the mounting direction 41. This in turn ensures that the connections 22a, 23a cannot leave the connection with the pressed screen 19.

The preferred variant, according to which the control housing part 17, here and preferably the control circuit board 16, is equipped with an electrical plug arrangement 49 which is accessible through the housing cover 14 is only indicated in the drawing. The housing cover 14 is equipped with corresponding recesses 50 for this purpose.

According to a further teaching, which is of independent importance, a method for producing a proposed motor vehicle lock 1 is claimed as such.

According to the proposed method, the control housing part 17 is first fitted with the control circuit board 16 and the energy storage arrangement 9 . Only then is the inner housing part 13 fitted with the control housing part 17, as a result of which the electrical connection between the control circuit board 16 and the drive arrangement 7 is established. As described above, a functional test can be carried out with the first-mentioned method step without the complete motor vehicle lock 1 having to be installed.

The control housing part 17 is preferably equipped with the control circuit board 16 and/or the energy storage arrangement 9 by joining the control circuit board 16 or the energy storage arrangement 9 to the stamped grid 19 . It was mentioned above that this should preferably be done via a Connector is provided. Reference may be made to all statements relating to the proposed motor vehicle lock 1 which are suitable for explaining the proposed method.

Claims (18)

1. Motor vehicle lock with a locking mechanism (2) and a lock housing structure (6), a motorized drive arrangement (7) for the motorized drive of at least one mechanical lock component, a control unit (8) for the actuation of the drive arrangement (7), and an (in particular, capacitive) energy storage arrangement (9) for the electric voltage supply of the drive arrangement (7) and/or the control unit (8) being provided in or on the lock housing structure (6),
   wherein the lock housing structure (6) has an inner housing part (13) which is fitted with the locking mechanism (2) and the drive arrangement (7), a housing cover (14) for closing an upper side (15) of the inner housing part (13), and, between the inner housing part (13) and the housing cover (14), a control housing part (17) which is fitted with a planar control board (16) of the control unit (8) and the energy storage arrangement (9), in that the control housing part (17) is assigned a leadframe (19) which consists of leadframe lines (20, 21) and extends at least in sections along the board plane (18) of the control board (16), and in that at least part of the drive arrangement (7) is connected electrically via the leadframe lines (20) of the leadframe (19) to the control board (16).
2. Motor vehicle lock according to Claim 1, characterized in that the energy storage arrangement (9) is connected electrically via leadframe lines (21) of the leadframe (19) to the control board (16).
3. Motor vehicle lock according to Claim 1 or 2, characterized in that the energy storage arrangement (9) is positioned along the board plane (18) offset laterally with respect to the control board (16).
4. Motor vehicle lock according to one of the preceding claims, characterized in that the electric connection between the drive arrangement (7) and the leadframe (19) and/or the electric connection between the control board (16) and the leadframe (19) and/or the electric connection between the energy storage arrangement (9) and the leadframe (19) are/is configured as a plug-in connection or as plug-in connections, and preferably in that the plug-in connection is configured as a plug/socket connection, as an insulation displacement connection or the like.
5. Motor vehicle lock according to one of the preceding claims, characterized in that a dividing wall (29) of the control housing part (17) defines an upper side (30) and a lower side (31) of the control housing part (17), and in that the control board (16) and the energy storage arrangement (9) are arranged on the upper side and the drive arrangement (7) is arranged on the lower side, and preferably in that at least part of the leadframe (19) is embedded in the dividing wall (29).
6. Motor vehicle lock according to one of the preceding claims, characterized in that at least part of the leadframe lines (20, 21) of the leadframe (19) in each case has a connecting piece (32, 33) which runs along the board plane (18), is preferably embedded in the dividing wall (29) and has end-side connector tongues (34, 35; 36, 37), and in that the connector tongues (34, 35; 36, 37) project, in particular transversely, from the dividing wall (29), and preferably in that the length of the connecting piece (32, 33) is greater than the respective lengths of the end-side connector tongues (34, 35; 36, 37) .
7. Motor vehicle lock according to Claim 6, characterized in that at least part of the connector tongues (34, 35; 36, 37) are configured as connector pins, and/or in that at least part of the connector tongues (34, 35; 36, 37) are configured as resilient connector elements, and/or in that at least part of the connector tongues (34, 35; 36, 37) are configured as connector sockets which are, in particular, resilient, and/or in that at least part of the connector tongues (34, 35; 36, 37) are configured in the form of insulation displacement connectors.
8. Motor vehicle lock according to Claim 6, characterized in that the two end-side connector tongues (36, 37) of at least part of the leadframe lines (20, 21), preferably of the leadframe lines (21) which are assigned to the energy storage arrangement (9), project in an identical direction from the dividing wall (29).
9. Motor vehicle lock according to Claim 6, characterized in that the two end-side connector tongues (34, 35) of at least part of the leadframe lines (20, 21), preferably of the leadframe lines (20) which are assigned to the drive arrangement (7), project in an opposed direction from the dividing wall (29).
10. Motor vehicle lock according to one of the preceding claims, characterized in that, together with the inner housing part (13), the housing cover (14) encloses the control housing part (17) completely, in particular in a sealing manner.
11. Motor vehicle lock according to one of the preceding claims, characterized in that the control housing part (17) has a first housing section (38) for receiving the energy storage arrangement (9) and, separately therefrom, a second housing section (39) for receiving the control board (16), preferably in that the two housing sections (38, 39) are separated from one another by way of a side wall (40), and further preferably in that the energy storage arrangement (9) has electric connectors (22a, 23a) which protrude through the side wall (40) and are connected electrically on the other side of the side wall (40) to associated connector tongues of the leadframe (19) .
12. Motor vehicle lock according to one of the preceding claims, characterized in that, together with the housing cover (14), the control housing part (17) configures at least one closed chamber for receiving the energy storage arrangement (9) and/or the control board (16), and preferably in that, together with the housing cover (14), the first housing section (38) and the second housing section (39) configure in each case one closed chamber.
13. Motor vehicle lock according to one of the preceding claims, characterized in that the motor vehicle lock (1) is assigned an assembly direction (41), and in that the control housing part (17) can be fitted with the energy storage arrangement (9) in an assembly movement (42) in the assembly direction (41), in a manner which establishes the plug-in connection to the leadframe (19), and/or in that the control housing part (17) can be fitted with the control board (16) in an assembly movement (43) in the assembly direction (41), in a manner which establishes the plug-in connection to the leadframe (19), and/or in that the inner housing part (13) can be fitted with the control housing part (17) in an assembly movement (44) in the assembly direction (41), in a manner which establishes the plug-in connection to the leadframe (19) .
14. Motor vehicle lock according to one of the preceding claims, characterized in that the control housing part (17) has a clamping arrangement (45), and in that, during the assembly movement (42) of the energy storage arrangement (9) in the assembly direction (41), the energy storage arrangement (9) comes into clamping engagement via the clamping arrangement (45) with the control housing part (17), and preferably in that the clamping arrangement (45) has clamping ribs (46) which extend along the assembly direction (41).
15. Motor vehicle lock according to one of the preceding claims, characterized in that the motor vehicle lock (1) is assigned a closing direction (47), in which, in the assembled state, the motor vehicle lock (1) runs in the case of closing of an associated closure element, and in that the assembly movement (42) of the energy storage arrangement (9) is oriented differently, in particular transversely, with respect to the closing direction (47).
16. Motor vehicle lock according to one of the preceding claims, characterized in that the control housing part (17), in particular the control board (16), is fitted with an electric plug arrangement (49) which is accessible by way of the housing cover (14).
17. Method for producing a motor vehicle lock according to one of the preceding claims, characterized in that the control housing part (17) is fitted with the control board (16) and the energy storage arrangement (9), and, afterwards, the inner housing part (13) is fitted with the control housing part (17).
18. Method according to Claim 17, characterized in that the control housing part (17) is fitted with the control board (16) and/or the energy storage arrangement (9), by the control board (16) and/or the energy storage arrangement (9) being joined to the leadframe (19).

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