DE102009002902A1 - Punching grid inserted from the outside into a lock housing - Google Patents

Abstract

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 manufacture of a housing part for a lock. According to the invention, a lock housing part is provided with an outer recess and passages. Electrical conductors are inserted into the recess. The tracks include connecting pins that project through the adjacent wall of the housing into the interior of the housing. The 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.

Description

The 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 manufacture of a housing part for a castle.

In furthermore past were locks for motor vehicles of any kind of a purely mechanical nature. Then have - like also in other areas of technology - the electrics, later Also the electronics quickly find their way into the product "motor vehicle lock".

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

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

Under Electromechanical components are understood to mean parts that interact with the elements just mentioned (lever, catch, pawl). As examples of such components are microswitches, Called friction contacts and electric motors.

So is z. B. often the automotive interior lighting over the position of the catch of the catch of catch and pawl controlled: With open catch is usually the Door open and the lights 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 electromechanical components signals and / or the power supply for it, Depending on the number of such components as described above, it requires the electrical Connection to each other and to 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. An electronic component carrier is from the document DE 10 2005 049 975 B4 known.

In As a rule, such Elektrokomponententräger in the Housing a motor vehicle lock inserted with the contacted different components and then - if still required - (covered with a foil) insulating or cast with a casting material, such as a casting resin. Such an electronic component carrier has, for example electrical conductors, potted microswitches, a connection plug etc. on.

By Electro component carrier in the housing of a motor vehicle lock the constructional scope in the lock 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 are associated with electrical lines 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 formed such that the spring action of the connection conductors is oriented approximately orthogonal to the joining direction of the components. The document describes that the electrical lines are inserted into an injection mold corresponding to the lock housing to be produced and embedded in areas of the housing to be reinforced by way of injection molding.

The publication DE 201 13 674 U1 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, the describes DE 201 13 674 U1 as known to apply by means of the so-called electroplating conductor tracks on plastic housings. However, the electroplating technique for applying printed conductors to plastics is relatively expensive, which is why it has not prevailed.

The DE 201 13 674 U1 teaches to overcome these disadvantages of applying electrical traces on the outside or inside of a housing.

The EP 1 496 732 A2 relates to a housing for electrical and electronic devices having a wall in which at least one printed circuit board equipped with electronic components is embedded. The conductor track 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.

So far nothing else expressly mentioned below can, the features described above, individually or combined in combination with the subject invention. In that regard, further embodiments of the invention result.

It Object of the invention, a lock housing part with a to provide a relatively large constructive margin, which can be manufactured inexpensively.

to Solution of the task is a lock housing part provided with an outer recess. An outer one Recess in the context of the invention is located on the outside a later lock, which is the lock housing part includes. The recess is provided with passages which from the outside into the interior of the lock housing part usher. Electrical conductor tracks, preferably in the form of a punched grid, are inserted into the recess. But electrical conductors can also be in the form of individual Wires or wire groups are inserted into the recess. The printed conductors or the stamped grid comprises connecting pins, passing through the adjacent wall of the housing into the interior of the housing protrude. Those located inside the castle Areas of the connection or connecting pins are then with the respective desired electrical, electromechanical or electronic components and preferably electrically soldered to a particularly reliable electrical To connect. The inserted from outside punched grid or the externally inserted tracks - for example in the form of individual wires or wire groups - be for example via an electrically insulating insert film or an electrically insulating potting compound such as a Resin or a two-component plastic completed to the outside. There is such a lock housing with tracks available the disadvantageous external influences are protected, which is a relatively large constructive Travel inside offers and which inexpensive and simply manufactured can be. In particular, the presence of a recess allows an inexpensive and trouble-free production of the lock housing part with electrical wires that are reliably fixed and after are shielded outside.

In an embodiment of the invention is provided in the Lock housing part component deposits for Forming the inclusion of components. The ones protruding into the interior Connecting pins are then with the respective desired Components electrically connected, so for example soldered. The component deposits will be final in an embodiment of the invention also with a electrically insulating potting compound poured or with the help a film and the like protected to in the component deposits located electrical conductor from unwanted outer To shield influences.

following The invention will be described in more detail by way of example with reference to an example explained.

It demonstrate

1 : Punched grid

2 : Outside of a lock housing part;

3 : Inside of the lock housing part;

4 : enlarged detail of the outside of the lock housing part;

5 : Inside of the lock housing part with inserted punched grid.

1 shows a punched grid 1 , which consists of conductor tracks 2 that exists over jetties 3 connected to each other. The punched grid was punched out of a sheet and therefore exists in one piece form. end up 2a and 2 B of tracks 2 were bent so that they protrude from the base at an angle of about 90 °. The bridges 3 First, make sure that the stamped grid can be easily handled and inserted into an outer or outer recess of a lock housing part. Next is through the webs 3 ensured that the tracks 2 have a desired distance between them. After inserting the stamped grid in an outside recess, the webs 3 severed, the more the interconnects 2 to separate electrically from each other.

In the 2 becomes the outside of a lock housing part 4 shown, which with an outer recess 5 is provided. The base of the recess 5 is at the base of the stamped grid 1 customized. This ensures that the recess 5 required space is minimized, which the constructive space in the interior benefits. In addition, it is so regularly ensured that the punched grid only as intended in the recess 5 can be inserted. In the 2 shown outer recess also comprises by walls 10 excluded areas. Will the recess 5 For example, poured out with a resin, so they are by walls 10 excluded areas excluded. As a result, relatively expensive potting compound such as resin and the associated weight is advantageously saved.

In the 3 becomes the inside of the lock housing part 4 shown. The wall, to which the punched grid borders from outside, has passages 6 , By the connecting pins of the conductor tracks and that in order to reduce manufacturing costs, preferably in the form of bent ends of conductor tracks 2 be inserted through when the punched 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 pass through walls 7 be limited. These bearings help to properly insert, connect and retain the components in the lock housing. They define a space that can easily be potted or otherwise shielded to protect components, electrical connections and connections from external influences.

4 shows an enlarged section of the outside of a lock housing part 4 with one in the recess 5 inserted punched grid. The recess 5 is with outwardly projecting spacers 8th provided, extending between the tracks 2 of the inserted punched grid. Is a punched grid in the recess 5 put in, so wear the spacers 8th Make sure that the tracks 2 of the stamped grid among themselves until then by the webs 3 maintained guaranteed distance. It can after inserting therefore the webs 3 be severed easily, without any fear that subsequently the traces 2 undesirable contact with each other. The number and placement of the spacers 8th is chosen so that the respectively required for the functioning distance between all traces 2 of the stamped grid is ensured.

5 shows the inside of the lock housing part 4 with inserted punched grid. Through the passages reach the connecting pins 2a of tracks 2 into the interior of the lock housing part. These connecting pins 2a If necessary, they are connected to corresponding electrical, electromechanical or electronic components. Bent ends 2 B of tracks 2 protrude near the corresponding edge of the housing through the adjacent wall, with a connector 9 to be connected properly. The bent ends 2a and 2 B 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 passing through the walls 7 are limited, poured with an insulating potting compound, so as to protect the electrical connections from corrosion and the like. Instead of a potting compound, however, it is also possible for an insulating mass to be pressed into deposits, for example. Through the changes 7 is achieved that quickly and reliably an insulating potting compound can be poured into a given space to obtain the desired shielding. The recess 5 on the outside of the housing serves in the same way as a form that can be easily poured with an inter alia electrically insulating potting compound to the tracks 2 Protect against harmful influences and at the same time fix them mechanically. Instead of a potting compound but can also be a suitable 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 cables 2 ready, which are permanently and electrically shielded to the outside. The lock housing part described, including the spacers, passageways and component deposits, can be manufactured in one piece by injection molding and therefore preferably consists of a suitable thermoplastic material, such as PE.

To the installation of the desired components and components can the lock housing part with another lock housing part or a plate so as to lock a desired one to provide for a motor vehicle.

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• DE 102005049975 B4 [0007]
• - DE 19916949 B4 [0010]
• - DE 20113674 U1 [0011, 0012, 0013]
• - EP 1496732 A2 [0014]

Claims (19)

Lock housing part ( 4 ) for a motor vehicle lock with an outer recess ( 5 ) for the insertion of electrical conductors ( 2 ) as well as passages ( 6 ), from the outer recess ( 5 ) lead into the interior of the lock housing part. 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. Lock housing part according to the preceding claim, in which the connecting pins have bent ends ( 2a . 2 B ) of the tracks ( 2 ) are. Lock housing part according to one of the preceding claims with an electrically insulating mass, which is in the recess ( 5 ) and which shields the electrical conductors to the outside. Lock housing part according to one of the preceding claims with a stamped grid, which electrical conductor tracks ( 2 ) and bridges ( 3 ) comprising the electrical tracks ( 2 ) connect with each other. Lock housing part according to one of the preceding claims with spacers ( 8th ) in the outer recess ( 5 ) for the separation of printed conductors ( 2 ). Lock housing part according to one of the preceding claims with walls ( 7 ) of component bearings inside the housing, which are shielded by an additional mass. Lock housing part according to one of the preceding claims, characterized by walls ( 10 ) predetermined areas within the recess ( 5 ). Lock housing part according to the preceding claim, in which the walls ( 10 ) confined areas do not contain a mass such as a potting compound. 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 track ( 2 ) connected is. Lock housing part according to the preceding claim, in which the component is located in a bearing point which is defined by a wall ( 7 ) is limited. Lock housing part after the previous one Claim in which the component is protected by an insulating mass is. Lock housing part after one of the three preceding claim, wherein the component is a Hall sensor, a read contact, a microswitch, a frictional contact, an electric motor, is a control device or a component with a microprocessor. Lock housing part according to one of the preceding claims with a connection plug ( 9 ), which is connected to one or more tracks. Motor vehicle with a lock housing part after one of the preceding claims. Method for producing a lock housing part for a lock of a motor vehicle, according to which electrical tracks ( 2 ) in an outer recess ( 5 ) of the lock housing part are inserted so that connecting pins ( 2a . 2 B ) of the tracks ( 2 ) through passages ( 6 ) extend into the interior and then the recess ( 5 ) is isolated to the outside. Method according to the preceding claim, in which a stamped grid ( 1 ) in the recess ( 5 ) is inserted, which consists of conductor tracks ( 2 ) and the interconnects interconnecting webs ( 3 ) is formed, wherein after inserting the stamped grid in the recess, the webs ( 3 ) are separated. Method according to one of the two preceding claims, in which electrical conductor tracks ( 2 ) are inserted into the outer recess so that these by spacers ( 8th ), which are located in the recess, are spatially separated. Method according to one of the two preceding claims, in which a potting compound in bearings in the interior of the lock housing part for a shielding of electrical conductors, electrical Compounds and / or components is poured.