Motor vehicle lock for a closure element of a motor vehicle

Abstract

The invention relates to a motor vehicle lock for a closure element of a motor vehicle, the motor vehicle lock (1) comprising, as lock components, at least a lock catch (2) and a pawl (3), wherein a printed circuit board (9) with electrical components (10) is positioned in a housing of the motor vehicle lock (1), wherein a plug element (14) for connecting at least a portion of the electrical components (10) to an external control device is provided on the housing, wherein at least a position sensor (16) for a lock component is provided on the printed circuit board (9). It is proposed that the position sensor (16) is designed as a reed switch which is actuatable by way of a magnet element (17) assigned to the lock component, and that the reed switch is configured to switch a circuit, connected by way of the plug element (14), depending on the position of the magnet element (17).

Description

[0001] Motor vehicle lock for a locking element of a motor vehicle

[0002] The present invention relates to a motor vehicle lock for a locking element of a motor vehicle according to the preamble of claim 1, a motor vehicle locking system according to claim 12 and a method for operating a motor vehicle lock according to the preamble of claim 13.

[0003] Such motor vehicle locks are applicable to all types of locking elements on motor vehicles. The term "locking element" includes, for example, a tailgate, a trunk lid, a hood, a side door, a cargo area flap, a window pane, a pop-up roof, or the like. The locking element can be pivotable and / or longitudinally movable on the motor vehicle.

[0004] The known prior art (DE 10 2020 115 879 A1) on which the invention is based relates to a motor vehicle lock comprising the lock components of a latch and a pawl. The latch can be brought into holding engagement with a locking part in at least one closed position, with the latch releasing the locking part in an open position. In a retracted position, the pawl prevents the latch from being moved into the open position and, in a raised position, releases the latch.

[0005] Furthermore, the known motor vehicle lock has position sensors that detect various lock states, for example to control auxiliary functions such as a closing aid or to indicate to a user that the locking element is only partially closed. The position sensors can detect the positions of lock components directly or indirectly, in particular also of locking components such as the lock latch and the pawl. In the prior art (DE 10 2020 115 879 A1), the position sensors are designed as microswitches, which require mechanical contact with the lock components and are therefore often provided in a wet area of ​​a housing of the motor vehicle lock. The invention is based on the problem of specifying a motor vehicle lock that enables particularly simple and flexible detection of a lock state.

[0006] The above problem is solved by the features of claim 1.

[0007] The fundamental idea is that, to simplify the electronic connection of the position sensor, a contactless position sensor is used, which can thus be arranged on a circuit board with other electrical components, particularly in a dry area of ​​the vehicle lock housing. However, to ensure that the lock status can be queried independently of the function of the other electrical components, the use of a reed switch is provided, which can be easily queried via an external control unit such as a door control unit.

[0008] In particular, it is proposed that the position sensor is designed as a reed switch which can be controlled via a magnetic element assigned to the lock component, and that the reed switch is designed to switch a circuit connected via the plug element depending on the position of the magnetic element.

[0009] The proposed solution enables the position sensor to be arranged with a substantial separation of the dry area and the wet area in the motor vehicle lock, which is the subject of claim 2.

[0010] In the embodiments according to claims 3 to 5, control is provided via a magnetic element, which is located at a different plane than the bearing of the lock component, so that metallic components in particular exert only a minimal influence on the magnetic element. The spacing is preferably implemented via an extension element, which can also serve as a spring connection for preloading the lock component.

[0011] Particularly preferred is the embodiment according to claim 6, according to which a secondary detection area of ​​the reed switch is used to detect the position of the lock component via the magnetic element, thus achieving particularly precise detection. On the other hand, several reed switches can be arranged at short distances from one another to detect multiple positions and controlled via the same magnetic element, which is further specified in claim 9.

[0012] An advantageous dual use of the reed switch is specified in claim 7, wherein the main detection area and the secondary detection area are used to detect various lock components.

[0013] The reed switch can serve a security-relevant function, particularly when interrogating the lock latch, since, for example, a motor vehicle alarm system can be activated based on the detected open position of the lock latch. To prevent manipulation of the reed switch by applying an external magnetic field, the embodiment according to claim 10 provides an additional anti-tamper reed switch, which also responds to the applied magnetic field and thus makes the attempted manipulation detectable.

[0014] According to a further teaching according to claim 12, which has independent significance, a motor vehicle locking system with a proposed motor vehicle lock and a control unit connected via the plug element is claimed. Reference is made to all statements regarding the proposed motor vehicle lock.

[0015] According to a further teaching according to claim 13, which also has independent significance, a method for operating a motor vehicle lock is claimed. It is essential that the position sensor is designed as a reed switch, which can be controlled via a magnetic element assigned to the lock component, and that a circuit connected via the plug element is switched depending on the position of the magnetic element of the reed switch. Reference is made to all statements regarding the proposed motor vehicle lock and the proposed motor vehicle locking system. The invention is explained in more detail below with reference to a drawing which merely represents exemplary embodiments. The drawing shows

[0016] Fig. 1 shows a proposed motor vehicle lock in an exploded view,

[0017] Fig. 2 the motor vehicle lock from Fig. 1 in a sectional view and

[0018] Fig. 3 the lock latch and the position sensor in a schematic plan view.

[0019] The preferred embodiment illustrated in the figures relates to a motor vehicle lock 1 for a locking element of a motor vehicle. In particular, the locking element configurations mentioned in the introduction are suitable.

[0020] The motor vehicle lock 1 essentially comprises several lock components. The lock components include, among others, the locking components, which contribute to the actual locking function of the motor vehicle lock 1. The locking components are a lock latch 2 and a pawl 3, as shown in Fig. 1.

[0021] The lock latch 2 can be brought into holding engagement with a locking part (not shown) in at least one closed position. The lock latch 2 accordingly fixes the locking part, whereby the locking element can be held in its position. The locking part can in particular be a striker or locking bolt. The locking part can be arranged on the locking element, in particular the side door, while the motor vehicle lock 1 can be arranged on the body. A reverse arrangement is also conceivable. The lock latch 2 has a locking part receptacle 4, into which the locking part can run along a guide track in order to come into holding engagement with the lock latch 2. The lock latch 2 can also be brought into an open position in which the locking part is released. The lock latch 2 is here and preferably designed to be pivotable about a geometric lock latch axis 5.The pawl 3 locks the lock latch 2 in a closed position in a retracted position, and releases the lock latch 2 in a raised position. The term "lock" generally means in this case that the lock latch 2 is held in the respective closed position by the pawl 3 in some way. The term "lock" is to be interpreted broadly and does not necessarily include a latching block or the like. In one embodiment, the pawl 3 is part of a pawl system which can be brought into a locked state in which the pawl system locks the lock latch 2 in a closed position. Here and preferably, the pawl 3 is designed to be pivotable about a geometric pawl axis 6. In the illustration in Fig.1, the pawl 3 is in the retracted position and locks the lock latch 2 in its main closed position via an engagement with a main notch 7 of the lock latch 2. Furthermore, according to a preferred embodiment, a pre-closing position of the lock latch 2 (not shown) is provided, in which the lock latch 2 can be locked via an engagement with a pre-notch 8 by means of the pawl 3.

[0022] A printed circuit board 9 with electrical components 10 is arranged in a housing of the motor vehicle lock 1. The printed circuit board 9 serves here as a carrier and for the electrical connection of the electrical components 10. Particularly preferably, the printed circuit board 9 is equipped with electrical components 10 using SMD technology, which can fundamentally perform various functions related to the operation of the motor vehicle lock 1. Here and preferably, the motor vehicle lock 1 has an electrical opening drive 11, via which the locking pawl 3 can be lifted by a motor. The opening drive 11 has an electric drive motor 12, which exerts a driving force via a mechanical drive train 13 on the locking pawl 3 for lifting it. The electrical components 10 can, for example, serve to control the drive motor 12 of the opening drive 11 and can therefore be designed as switching elements, capacitors, microcontrollers, or the like.

[0023] The housing of the motor vehicle lock 1 generally comprises a housing for the components of the motor vehicle lock 1, with the lock components being at least partially arranged within the housing. The housing can generally be constructed in several parts and is shown in a simplified manner in the figures. Here, and preferably, the housing accommodates the circuit board 9, the lock latch 2, and the locking pawl 3.

[0024] A connector element 14 is provided on the housing for connecting at least some of the electrical components 10 to an external control unit. The control unit can be a door control unit or a hatch control unit, which, in particular, is superordinate to the electrical components 10 of the motor vehicle lock 1 in terms of control technology. For example, the control unit triggers the activation of the opening drive 11 via the connection to the connector element 14.

[0025] The plug element 14 can be designed as a socket connector having contact elements 15 for connection to the control unit. The connection is established, for example, via a multi-core supply cable (not shown) with a plug complementary to the socket connector. The plug element 14 can be provided at least partially on the circuit board 9. Here, and preferably, the contact elements 15 are arranged on the circuit board 9, and the housing has, in particular, an opening which, together with the contact elements 15, forms the socket connector.

[0026] At least one position sensor 16 for a lock component is provided on the circuit board 9. The position sensor 16 serves to detect at least one position of the lock component, wherein in particular the position of the lock latch 2 and / or the pawl 3 is detected by the position sensor 16. In the exemplary embodiment explained here, at least one of the closed positions of the lock latch 2 is detected by the position sensor 16. The explanations also apply accordingly to other lock components.

[0027] It is now essential that the position sensor 16 is designed as a reed switch which can be controlled via a magnetic element 17 assigned to the lock component, and that the reed switch is designed to switch a circuit connected via the plug element 14 depending on the position of the magnetic element 17.

[0028] Essentially, the reed switch is an electrical switching element that can be switched contactlessly by means of the magnetic element 17. It is in the closed switching state, particularly when the magnetic element 17 is present in a detection area, and in the open switching state otherwise. Switching between the closed switching state and the open switching state is referred to here as "control" via the magnetic element 17. In this case, the position sensor 16 can have multiple reed switches. The reed switch is preferably mounted on the circuit board 9 using SMD technology. The reed switch can have a protective casing.

[0029] A circuit can be formed via the connection to the plug element 14, in which the reed switch is integrated, so that the electronic properties of the circuit depend on whether the reed switch is in the closed or open switching state. Preferably, at least two of the contact elements 15 of the plug element 14 are interconnected via the reed switch. In a particularly simple embodiment, the circuit is opened or closed via the reed switch, with the reed switch opening or closing the electrical connection between contact elements 15, for example. In general, an electrical resistance between at least two contact elements 15 of the plug element 14 can depend on the switching state of the reed switch.

[0030] Accordingly, with the proposed solution, the position of the lock components can be queried using the external control unit even in cases where other electrical components 10 of the motor vehicle lock 1 are unavailable, which can occur, for example, in the event of a power supply failure or a defect in the electrical components 10. Compared to the use of Hall sensors, this achieves a particularly simple and robust connection of the control unit. Furthermore, the use of a reed switch enables a particularly advantageous arrangement of the circuit board 9 and the lock components. In deviation from the illustration in Figs. 1 and 2, the reed switch can also be arranged on a side of the circuit board 9 facing away from the lock components.

[0031] Preferably, the housing is divided into a dry area 19 and a wet area 20 by a housing partition 18. The dry area 19 is a spatial section formed by the housing, which is intended for moisture-sensitive components and for which measures have been taken to seal it off against the ingress of moisture. Here and preferably, the housing partition 18 seals off the dry area 19 from the wet area 20, wherein in particular the housing partition 18 only has a sealed feedthrough 21 for the drive train 13 of the opening drive 11. The drive motor 12 is preferably also located in the dry area 19. Here and preferably, the dry area 19 is designed with a sealing plug element 14. The dry area 19 is thus preferably sealed by the housing partition 18 and a first housing section 22.

[0032] The circuit board 9 with the reed switch is arranged in the dry area 19. The lock component detected by the reed switch is arranged, preferably with the magnetic element 17, in the wet area 20. The wet area 20 is partially open to the environment, which is provided here and preferably by the inlet opening 23 for inserting the locking part into the lock latch 2. In the illustration in Fig. 1, a second housing section 24 adjoins the housing partition 18 and partially surrounds the wet area 20 and the lock component.

[0033] Furthermore, it is preferably provided here that the lock component detected by the reed switch is mounted in a cross-section of the motor vehicle lock 1 between a striker plate 25 and a reinforcement plate 26. The cross-section is preferably a cross-section perpendicular to the locking plane of the motor vehicle lock 1, in which the locking forces are transmitted between the lock latch 2 and the pawl 3. The striker plate 25 is arranged on the outside of the motor vehicle lock 1 and further preferably serves to fasten the motor vehicle lock 1 to the motor vehicle. The aforementioned inlet opening 23 is provided here at least partially in the striker plate 25.

[0034] The striking plate 25 and the reinforcing plate 26 form the bearing points for a bearing dome, which accommodates the pivotable lock component and, here and preferably, forms the lock latch axis 5 of the lock latch 2. The striking plate 25 and the reinforcing plate 26 are preferably designed as a reinforcing structure for supporting the lock component.

[0035] The magnetic element 17 is arranged in cross-section in a plane between the reinforcement plate 26 and the circuit board 9, in particular between the reinforcement plate 26 and the housing partition wall 18, as can be further seen in Fig. 2. This makes it easy to avoid any influence of the metallic components, the locking plate 25 and the reinforcement plate 26, on the detection via the reed switch.

[0036] In the illustrated embodiment, the lock component detected by the reed switch, here the lock latch 2, has an extension element 27 from the area between the striking plate 25 and the reinforcing plate 26, on which the magnetic element 17 is arranged. The extension protrudes in cross-section into the area between the reinforcing plate 26 and the circuit board 9, in particular between the reinforcing plate 26 and the housing partition wall 18, so that the magnetic element 17 can be arranged close to the circuit board 9 and thus close to the reed switch. The extension element 27 is preferably provided in a rotationally fixed manner with the lock component. Particularly preferably, the extension element 27 is designed at least in sections from plastic and is provided in particular as an injection-molded component.

[0037] In the illustrated embodiment, the extension is an element that is otherwise formed separately from the lock latch 2 and is also mounted on the lock latch axis 5. In a further embodiment not shown, the extension can be formed in one piece with a casing of the lock component, for example, the plastic casing of a metal core of the lock latch 2 or the pawl 3.

[0038] The extension element 27 can preferably provide a distance of at least 5 mm, particularly preferably at least 8 mm, from metallic components of the motor vehicle lock 1, for example from the reinforcement plate 26, the strike plate 25, the metal core of the lock component or the like.

[0039] Furthermore, it is preferably provided here that the lock components are preloaded to a spring 28 via mechanical contact of the extension element 27. By using the extension element 27, which is provided in particular as a separate element from the lock component, the point of application of the spring 28 can be freely selected. Preferably, as shown in Fig. 2, the spring 28 contacts the extension element 27 at a section of the extension element 27 adjacent to the reinforcement plate 26. Accordingly, the mentioned distance of the magnetic element 17 from metallic components can be maintained in order to prevent the spring 28 from influencing the position sensor 16.

[0040] Furthermore, it is preferably provided here that the reed switch has a main detection area 29 and a secondary detection area 30 which is smaller than the main detection area 29, and that the reed switch can be controlled via the magnetic element 17 in the secondary detection area 30.

[0041] The detection zone is the spatial area around the reed switch in which the reed switch responds to the insertion of the magnetic element 17. As shown in Fig. 3, the reed switch preferably has main detection lobes forming the main detection zone 29 and secondary detection lobes forming the secondary detection zone 30. The secondary detection zone 30, here the secondary detection lobes, has / have a smaller volume than the main detection zone 29. This enables more precise detection of the position of the lock component, since the magnetic element 17 controls the reed switch in a smaller angular range compared to the main detection zone 29.

[0042] It is conceivable that the reed switch detects the position of another lock component via the main detection area 29. For example, as shown, detection of the position of the lock latch 2 can be implemented via the secondary detection area 30, while the position of another lock component such as the pawl 3, the drive train 13, an internal operating lever, an external operating lever, or the like is detected via the main detection area 29. Although the reed switch only detects the positions together via a closed or open state, the positions of the lock components can be resolved via further complementary information, for example, via a mandatory logical time sequence of the positions or via additional sensors.

[0043] As already mentioned, the lock component detected by the reed switch is preferably the lock latch 2. The reed switch can be activated when the lock latch 2 is in at least one closed position or when the lock latch 2 is in the open position. Particularly preferably, the reed switch is activated when the main closed position is assumed.

[0044] Alternatively or additionally, it is conceivable that the pawl 3 is provided as the lock component detected by the reed switch. Detection of the pawl 3 can be provided via a magnetic element 17 arranged on the pawl 3. In a preferred embodiment, the reed switch detects the position of the pawl 3 via a sensor lever 31 associated with the pawl 3 and having the magnetic element 17. The sensor lever 31 can also, as shown in Fig. 2, serve to preload the pawl 3 via the spring 28. Particularly preferably, the spring 28 provides preload for both the pawl 3 and the lock latch 2.

[0045] In Fig. 3 and in a further preferred embodiment, two reed switches are provided for detecting a pre-locking position (VS) and a main locking position (HS) of the lock latch 2. Preferably, the reed switches can each be controlled via the same magnetic element 17 assigned to the lock latch 2. Depending on the angular position of the lock latch 2, the magnetic element 17 can be located within the detection range of the respective reed switch provided for the closed position. Preferably, the magnetic element 17 is located outside the detection range when the lock latch 2 is in the open position.

[0046] It is preferred that the reed switches be controllable via the magnetic element 17 in a respective secondary detection area 30. The smaller secondary detection areas 30 enable the respective position to be resolved, particularly given the only small angular differences between the positions of the lock latch 2 between the closed positions. Preferably, the secondary detection areas 30 of the reed switches do not overlap. In the illustration in Fig. 3, the lock latch 2 is in the main closed position, and the magnetic element 17 is in the secondary detection area 30 of the reed switch for the main closed position.

[0047] In an embodiment not shown, it is provided that a tamper-proof reed switch is provided adjacent to the position sensor 16, which is designed to also be activated when a magnetic field external to the motor vehicle lock 1 is applied to activate the position sensor 16.

[0048] In particular, detecting the open state of the lock latch 2 can be relevant for the anti-theft protection of the motor vehicle, whereby the open state, for example, triggers an alarm system unless this was deactivated before the vehicle lock 1 was opened. When using the reed switch, the challenge can arise that the reed switch can be controlled via an external magnetic field and thus manipulated in such a way that a closed position for the lock latch 2 is still detected via the circuit. The use of the tamper-proof reed switch prevents such manipulation, since the tamper-proof reed switch is controlled together with the reed switch provided as the position sensor 16. The state of the tamper-proof reed switch can be used to verify the plausibility of the position detected by the position sensor 16.

[0049] Particularly preferably, the magnetic element 17 is designed as a ferrite magnet. The use of a cost-intensive magnetic element 17 based on a neodymium magnet can advantageously be dispensed with when using the reed switch.

[0050] According to a further teaching, a motor vehicle locking system is proposed with a proposed motor vehicle lock 1 and a control unit connected via the plug element 14. A circuit formed via the control unit and the plug element 14 can be switched by means of the reed switch depending on the position of the magnetic element 17. Preferably, the control unit generates position information of the lock component via the circuit. Reference is made to all statements regarding the proposed motor vehicle lock 1.

[0051] According to a further teaching, a method is proposed for operating a motor vehicle lock 1 having at least one lock latch 2 and a pawl 3 as lock components. The lock latch 2 can be brought into holding engagement with a locking part in at least one closed position, wherein the lock latch 2 releases the locking part in an open position, wherein the pawl 3 blocks adjustment of the lock latch 2 into the open position in a retracted position and releases the lock latch 2 in a raised position. A printed circuit board 9 with electrical components 10 is arranged in a housing of the motor vehicle lock 1, wherein a plug element 14 is provided on the housing, via which plug element at least some of the electrical components 10 are connected to an external control unit, wherein at least one position sensor 16 for a lock component is provided on the printed circuit board 9.

[0052] It is provided that the position sensor 16 is designed as a reed switch, which can be controlled via a magnetic element 17 assigned to the lock component, and that a circuit connected via the plug element 14 is switched depending on the position of the magnetic element 17 of the reed switch. Reference is made to all statements regarding the proposed motor vehicle lock 1 and the proposed motor vehicle locking system.

Claims

Patent claims 1. Motor vehicle lock for a locking element of a motor vehicle, the motor vehicle lock (1) comprising at least one lock latch (2) and a pawl (3) as lock components, wherein the lock latch (2) can be brought into holding engagement with a locking part in at least one closed position, wherein the lock latch (2) releases the locking part in an open position, wherein the pawl (3) blocks adjustment of the lock latch (2) into the open position in a retracted position and releases the lock latch (2) in a raised position, wherein a printed circuit board (9) with electrical components (10) is arranged in a housing of the motor vehicle lock (1), wherein a plug element (14) is provided on the housing for connecting at least some of the electrical components (10) to an external control unit, wherein at least one position sensor (16) for a lock component is provided on the printed circuit board (9), characterized in thatthat the position sensor (16) is designed as a reed switch which can be controlled via a magnetic element (17) assigned to the lock component, and that the reed switch is designed to switch a circuit connected via the plug element (14) depending on the position of the magnetic element (17).

2. Motor vehicle lock according to claim 1, characterized in that the housing is divided into a dry area (19) and a wet area (20) by a housing partition wall (18), that the circuit board (9) with the reed switch is arranged in the dry area (19), and that the lock component detected by the reed switch, preferably with the magnetic element (17), is arranged in the wet area (20).

3. Motor vehicle lock according to claim 1 or 2, characterized in that the lock component detected via the reed switch is mounted in a cross section of the motor vehicle lock (1) between a locking plate (25) and a reinforcing plate (26), and that the magnetic element (17) in cross section in a plane between reinforcing plate (26) and printed circuit board (9), in particular between reinforcement plate (26) and housing partition wall (18).

4. Motor vehicle lock according to claim 3, characterized in that the lock component detected via the reed switch has an extension element (27) from the area between the striking plate (25) and the reinforcing plate (26), on which the magnetic element (17) is arranged, preferably that the extension element (27) is provided in a rotationally fixed manner with the lock component, further preferably that the extension element (27) is provided separately from the lock component or in one piece with a casing of the lock component.

5. Motor vehicle lock according to claim 3 or 4, characterized in that the lock components are prestressed by a mechanical contact of the extension element (27) to a spring (28), preferably that the spring (28) contacts the extension element (27) at a section of the extension element (27) adjacent to the reinforcing plate (26).

6. Motor vehicle lock according to one of the preceding claims, characterized in that the reed switch has a main detection area (29) and a secondary detection area (30) which is smaller than the main detection area (29), and in that the reed switch can be controlled via the magnetic element (17) in the secondary detection area (30).

7. Motor vehicle lock according to claim 6, characterized in that the reed switch detects the position of another lock component via the main detection area (29).

8. Motor vehicle lock according to one of the preceding claims, characterized in that the lock latch (2) is provided as the lock component detected via the reed switch, and in that the reed switch can be controlled when the lock latch (2) is in at least one closed position or when the lock latch (2) is in the open position, and / or in that the lock component detected via the reed switch the pawl (3) is provided, preferably that the reed switch detects the position of the pawl (3) via a sensor lever (31) associated with the pawl (3) and having the magnetic element (17).

9. Motor vehicle lock according to one of the preceding claims, characterized in that two reed switches are provided for detecting a pre-locking position and a main locking position of the lock latch (2), preferably that the reed switches are each controllable via the same magnetic element (17) assigned to the lock latch (2), further preferably that the reed switches are controllable via the magnetic element (17) in a respective secondary detection area (30).

10. Motor vehicle lock according to one of the preceding claims, characterized in that a tamper-proof reed switch is provided adjacent to the position sensor (16), which is designed to also be activated when a magnetic field external to the motor vehicle lock (1) is applied to activate the position sensor (16).

11. Motor vehicle lock according to one of the preceding claims, characterized in that the magnetic element (17) is designed as a ferrite magnet.

12. Motor vehicle locking system with a motor vehicle lock (1) according to one of the preceding claims and with a control unit connected via the plug element (14), wherein a circuit formed via the control unit and the plug element (14) can be switched by means of the reed switch depending on the position of the magnetic element (17).

13. A method for operating a motor vehicle lock (1) comprising at least one lock latch (2) and a pawl (3) as lock components, wherein the lock latch (2) can be brought into holding engagement with a locking part in at least one closed position, wherein the lock latch (2) releases the locking part in an open position, wherein the pawl (3) blocks adjustment of the lock latch (2) into the open position in a retracted position and releases the lock latch (2) in a raised position, wherein a printed circuit board (9) with electrical components (10) is arranged in a housing of the motor vehicle lock (1), wherein a plug element (14) is provided on the housing, via which plug element at least some of the electrical components (10) are connected to an external control unit, wherein at least one position sensor (16) for a lock component is provided on the printed circuit board (9), characterized in that the position sensor (16) is designed as a reed switch which can be controlled via a magnetic element (17) assigned to the lock component, and in that a circuit connected via the plug element (14) is switched depending on the position of the magnetic element (17) of the reed switch.

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