EP2427616A1

EP2427616A1 - Lock housing part having an outer recess for inserting electric conductors

Info

Publication number: EP2427616A1
Application number: EP10722549A
Authority: EP
Inventors: Ludger Graute
Original assignee: Kiekert AG
Current assignee: Kiekert AG
Priority date: 2009-05-07
Filing date: 2010-04-21
Publication date: 2012-03-14
Also published as: RU2534501C2; WO2010136004A1; RU2011143961A; CN102428241A; DE102009002902A1

Abstract

The present invention relates to a housing part (4) for a lock, having one or more electric, electromechanical and/or electronic components, particularly for a motor vehicle. The invention also relates to a method for producing a housing part (4) for a lock. According to the invention, a lock housing part (4) having an outer recess (5) and passages (6) is provided. Electric conductors (2) are inserted in the recess (5). The conductors (2) comprise connecting pins (2a, 2b), which project through the adjoining wall of the housing into the interior of the housing. The regions of the joining or connecting pins (2a, 2b) located on the inside of the lock are subsequently electrically connected to the respective desired electric, electromechanical or electronic components.

Description

LOCK HOUSING PART WITH AN EXTERNAL REMOVAL FOR THE

LOADING ELECTRIC STRUCTURES

The present invention relates to a housing part for a lock with one or more electrical, electromechanical and / or electronic components, in particular for a motor vehicle. The invention also relates to a method for the production of a housing part for a lock.

In the distant past, locks for automobiles of any kind were purely mechanical in nature. Then - as well as in other areas of technology - the electrics, and later also the electronics quickly found their way into the product "motor vehicle lock".

Today motor vehicle locks, especially door and flap locks usually include both electrical, electromechanical and electronic components.

Under the electrical components are usually understood such components, for example, the position of the lever located in the lock, such as, B. Interrogate central locking lever, rotary latch and / or pawl without contact. Examples of such components are Hall sensors, read contacts or the like.

Under electromechanical components such parts are understood, with the above-mentioned elements (lever, catch, pawl

) to interact. Examples of such components include microswitches, friction contacts and electric motors.

So z. B, often the motor vehicle interior lighting controlled by the position of the catch of the locking mechanism of catch and pawl: When the catch is open, the door is usually open and the lighting is active. Finally, electronic components are usually control devices, which usually have a microprocessor and / or make an evaluation of the output from the electrical and electronic components mechanical signals and / or the power supply for it.

Depending on the number of such components as described above, it requires the electrical connection with each other and energy sources. For this purpose, so-called electronic component carrier have proven successful. Electrical component carrier means such devices that are equipped with components such as connectors, (micro-) switches, sensors and / or electric motors (bearings) and are equipped for electrically connecting these parts with a conductive foil or an often at least partially embedded in plastic stamped grid. One

Electro component carrier is known from the document DE 10 2005 049 975 B4.

In general, such electrical component carrier are inserted into the housing of a motor vehicle lock, contacted with the various components and then - if still necessary - (covered with a film) insulating or potted with a casting material, such as a casting resin, such an electrical component carrier has, for example, electrical conductors, potted microswitch, a connection plug, etc ..

By Elektrokomponententräger in the housing of a

Motor vehicle lock, the constructive freedom in the castle is at least partially limited.

The publication DE 199 16 949 B4 discloses a lock housing made of injection-molded plastic for a motor vehicle door lock with components, which electrical cables are associated with connection devices. The components to be connected to the electrical lines have resilient connection conductors for contacting with the Connection devices of the electrical lines. In addition, it is provided that the resilient connection conductors of the components are designed such that the spring action of the connection conductor is oriented approximately orthogonal to the joining direction of the components, in the document is described that the electrical lines inserted into a corresponding to the lock housing produced injection mold and in the way of the injection molding to be embedded in areas to be reinforced of the housing.

The document DE 201 13 674 U l describes as known, in the lock housing arranged conductor tracks during the injection process of the housing to be molded directly with. The housing has for the supply of energy to these interconnects by the housing projecting contacts. However, this method has the disadvantage that although a conductor track is hermetically sealed, so that no damage to the conductor track can take place directly, however, it is no longer possible to control whether the conductor track is in the proper state after the encapsulation.

Furthermore, DE 201 13 674 U I describes as known to apply printed conductors to plastic housings by means of the so-called electroplating technique. However, the electroplating technique for applying printed conductors to plastics is relatively expensive, which is why it was not enforced,

DE 201 13 674 U l teaches to overcome these disadvantages of applying electrical conductor tracks on the outside or inside of a housing,

EP 1 497 732 A2 relates to a housing for electrical and electronic devices having a wall into which at least one The printed conductor is formed by a flexible carrier 2, which is equipped at least on one side with the electronic components, wherein the surface of the carrier at least in a partial region of the housing at the same time forms the surface of the inner wall of the housing,

Unless expressly stated otherwise below, the features described above may be combined individually or in combination with the subject matter of the invention. In that regard, further embodiments of the invention,

It is an object of the invention to provide a lock housing part with a relatively large structural clearance, which can be manufactured inexpensively,

To solve the problem, a lock housing part is provided with an outer recess, an outer recess in the context of the invention is located on the outside of a later lock, which comprises the lock housing part, the recess is provided with passages which lead from the outside into the interior of the lock housing part , Electrical interconnects, which are preferably in the form of a punched grid, are inserted into the recess, but electrical conductors can also be inserted in the recess in the form of individual wires or wire groups. The interconnects or the stamped grid comprises connecting pins that pass through the adjacent wall of the housing Protruding into the interior of the housing, located in the interior of the castle areas of the connection or connecting pins are then electrically connected to the respective desired electrical, electro-mechanical or electronic components, preferably soldered, so as to provide a particularly reliable electrical connection, Das Inserted from the outside punched grid or inserted from the outside conductor tracks - for example in the form of individual wires or wire groups - are for example via an electrically insulating insert film or an electrically insulating potting compound as to For example, a resin or Completing a two-component plastic to the outside, It is so a lock housing with traces available, which are protected from adverse external influences, which offers a relatively large structural space inside and which can be inexpensively and easily manufactured. In particular, the presence of a recess allows an inexpensive and trouble-free production of the lock housing part with electrical lines that are reliably fixed and shielded to the outside,

In one embodiment of the invention, it is provided to mold component deposits for receiving components in the lock housing part. The protruding into the interior pins are then electrically connected to the respective desired components, so for example soldered. Finally, in one embodiment of the invention, the component deposits are likewise poured out with an electrically insulating casting compound or protected by means of a foil and the like in order to shield electrical conductors located in the component deposits from undesired external influences.

The invention will be explained in more detail below with reference to an example,

Show it

Figure 1: punched grid

Figure 2: outside of a lock housing part;

Figure 3: inside of the lock housing part;

Figure 4: enlarged detail of the outside of the

Lock housing part;

Figure 5: Inside of the lock housing part with inserted

Stamped grid. Figure 1 shows a Stαnzgitter 1, which consists of conductor tracks 2, which are interconnected by webs 3. The stamped grid was punched out of a sheet and is therefore in one piece form. Ends 2a and 2b of printed conductors 2 have been bent so that they protrude from the base at an angle of approximately 90 °. First, the webs 3 ensure that the stamped grid can be easily handled and inserted into an outer or outer recess of a lock housing part. Furthermore, it is ensured by the webs 3 that the interconnects 2 have a desired spacing from each other. After inserting the stamped grid in an outside recess, the webs 3 are severed, so as to suitably separate the interconnects 2 from each other electrically.

FIG. 2 shows the outside of a lock housing part 4, which is provided with an outer recess 5. The base area of the recess 5 is adapted to the base area of the stamped grid 1. This ensures that the space required for the recess 5 is minimized, which benefits the structural space inside, in addition it is so regularly ensured that the lead frame can only be inserted as intended in the recess 5. The outer recess shown in Figure 2 also comprises by walls 10 recessed areas, If the recess 5, for example, poured with a resin, it is excluded by walls 10 recessed areas thereof, This relatively expensive potting compound such as resin and the associated Advantageously saved weight,

In the figure 3, the inside of the lock housing part 4 is shown, The wall to which the leadframe borders from the outside, has passages 6, through the connecting pins of the conductor tracks and that in order to reduce manufacturing costs, preferably in the form of bent ends of printed conductors 2 are inserted through when the stamped grid is inserted into the recess. It will be provided in the interior of the housing connections to which the desired components can be connected. The inside of the lock housing also includes bearings for the components to be connected or components that are limited by walls 7. These bearings help to properly insert, connect and retain the components in the lock housing. They define a space that can be easily potted or otherwise shielded to protect components, electrical connections and connections from external influences.

FIG. 4 shows an enlarged section of the outside of a lock housing part 4 with a stamped grid inserted into the recess 5. The recess 5 is provided with outwardly projecting spacers 8, which are located between the interconnects 2 of the inserted stamped grid. If a stamped grid has been inserted into the recess 5, then the spacers 8 ensure that the printed conductors 2 of the stamped grid mutually suitably maintain the distance guaranteed by the webs 3 until then. It can therefore easily be severed after inserting the webs 3, without any fear that subsequently the interconnects 2 undesirably come into contact with each other, the number and placement of the spacers 8 is selected so that each required for the proper functioning distance between all tracks 2 of the stamped grid is ensured

Figure 5 shows the inside of the lock housing part 4 with inserted stamped grid. Passing through the passages, the connecting pins 2 a of printed conductors 2 extend into the interior of the lock housing part. These connecting pins 2a are connected as needed to corresponding electrical, electromechanical or electronic components. Bound ends 2b of printed conductors 2 protrude close to the corresponding edge of the housing the adjacent wall to be suitably connected to a connector 9. The bent ends 2a and 2b, or connecting pins, are soldered to electrical terminals of plugs and other electrical, electromechanical or electronic components, in particular, to provide reliable electrical connections. Finally, the deposits, which are bounded by the walls 7, poured with an insulating potting compound, so as to protect the electrical connections from corrosion and the like, Instead of a potting compound but can also be an insulating mass in deposits are pressed, by the conversions 7 achieved that quickly and reliably an insulating potting compound can be poured into a predetermined space to obtain the desired shield, the recess 5 on the outside of the housing serves in the same way as a shape that easily with a u. a, electrically insulating potting compound can be poured to protect the tracks 2 from harmful influences and at the same time mechanically fix, but instead of a potting compound can also be a suitably insulating mass, for example, pressed into the room or in the form. To operate without great technical effort, so is a lock housing part with electrical connections and electrical lines 2 ready, which are permanently and electrically shielded to the outside. The lock housing part described, including the spacers, passages and component deposits, can be produced in one piece by injection molding and therefore preferably consists of a suitable thermoplastic material, such as PE.

After installation of the desired components and components, the lock housing part can be closed with another lock housing part or a plate so as to provide a desired lock for a motor vehicle,

Claims

claims

1 . Schlossgehöuseteil (4) for a Krαftfαhrzeugschloss with an outer recess (5) for the insertion of electrical conductors (2) and passages (6) which lead from the outer recess (5) in the interior of the lock housing part.

2, lock housing part according to claim 1 with electrical conductor tracks (2) in the recess (5) and connecting pins, which lead from the electrical conductor tracks in the interior of the lock housing part.

3, lock housing part according to the preceding claim, wherein the connecting pins are bent ends (2a, 2b) of the conductor tracks (2).

4. lock housing part according to one of the preceding claims with an electrically insulating material which is located in the recess (5) and which shields the electrical conductor tracks to the outside.

5. lock housing part according to one of the preceding claims with a stamped grid, which comprises electrical conductor tracks (2) and webs (3) which connect the electrical conductor tracks (2) with each other.

6, lock housing part according to one of the preceding claims with spacers (8) in the outer recess (5) for the Separating conductor tracks (2),

7. lock housing part according to one of the preceding claims with walls (7) of component bearings in the interior of the housing, which are shielded by an additional mass.

8. lock housing part according to one of the preceding claims with predetermined by walls (10) areas within the recess (5),

9. lock housing part according to the preceding claim, in which the areas bounded by walls (10) contain no mass such as a potting compound,

10. lock housing part according to one of the preceding claims with at least one electrical, electromechanical or electronic component which is connected to at least one electrical conductor track (2).

1 1. Lock housing part according to the preceding claim, in which the component is located in a bearing point bounded by a wall (7),

12. lock housing part according to the preceding claim, wherein the component is protected by an insulating mass,

13. Lock housing part according to one of the three preceding claims, wherein the component is a Hall sensor, a read contact, a microswitch, a frictional contact, an electric motor, a Steuerbαuteil or a component with a microprocessor is.

14. lock housing part according to one of the preceding claims with a connector (9) which is connected to one or more tracks.

15. Motor vehicle with a lock housing part according to one of the preceding claims.

16. A method for producing a Schlossgehäusefeils for a lock of a motor vehicle, according to the electrical conductors (2) in an outer recess (5) of the lock housing part are inserted so that connecting pins (2a, 2b) of the conductor tracks (2) through passages (6) extend into the interior and then the recess (5) is insulated to the outside.

1 7. Method according to the preceding claim, wherein a stamped grid (1) in the recess (5) is inserted, which consists of conductor tracks (2) and the interconnects interconnecting webs (3), wherein after inserting the stamped grid in the recess the webs (3) are separated.

18. The method according to one of the two preceding claims, wherein the electrical conductor tracks (2) are inserted into the outer recess so that they are spatially separated from each other by spacers (8) which are located in the recess.

19. The method according to one of the two preceding claims, wherein a potting compound in bearings inside the Lock housing part is cast for a shielding of electrical conductors, electrical connections and / or components,