EP3044800A1

EP3044800A1 - Microswitch for position determination, and use

Info

Publication number: EP3044800A1
Application number: EP14772276.3A
Authority: EP
Inventors: Thorsten Bendel
Original assignee: Kiekert AG
Current assignee: Kiekert AG
Priority date: 2013-09-12
Filing date: 2014-08-27
Publication date: 2016-07-20
Anticipated expiration: 2034-08-27
Also published as: CN105723486A; US9941060B2; EP3044800B1; CN105723486B; US20160225544A1; DE102013015174A1; WO2015035977A1; DE112014004201A5

Abstract

The problem addressed by the invention is that of providing a microswitch that allows the setting of the microswitch to be detected. This problem is solved in that a microswitch is provided which comprises a conducting element that can be moved along a surface. At least one, preferably at least two, conducting tracks are integrated in the surface in such a way that the conducting tracks can be contacted by the movable conducting element. By means of the actuation of the microswitch, the movable conducting element is moved at least in some regions. During the movement, the movable conducting element lies on the surface along which the movable conducting element is moved. By means of the movement, two electrical conducting tracks are electrically connected to each other or an electrical connection between two conducting tracks is disconnected. Thus, the movement causes electrical switching. One or more contact surfaces, which are electrically connected to each other by means of the movement, have differently electrically conductive regions in such a way that electrical resistances of electrically connected surfaces change by means of the movement. A plurality of different switch settings can then be determined by means of resistance measurements. Thus, if such a microswitch is used for position detection, more than two different positions can be detected.

Description

ikroschalter z Positionsbesfimmyng nebsi use

The invention relates to a micro-component and an electronic component carrier, in particular for a motor vehicle, with printed conductors embedded in an electrically insulating materal, electric terminals and an integrated micro-scaler. The invention further relates to an advantageous use.

An electrical component carrier is a self-interrogating component having a housing and electrical conductor tracks inserted into the housing, which have basically been punched out of a metal sheet. The inserted tracks are coated with insulating material, uro and thus protected from environmental influences. The material of the conductor tracks is so thick and therefore stable, aass conductor ends can serve as Kontaktsfifte. In addition, the material is fundamentally flexible so that conductor ends can be bent in a desired direction for raw-factoring. Basically, the conductor tracks are made of metal and are in particular 0.1 mm to 1 mm thick.

Electrical components are connected to the electrical terminals of such a conductor track unit ^'such as switches, detectors, electronic components or electric motors, such electrical components can be found, for example, in a lock, in particular iürschloss a motor vehicle,

For the production of an ESekfrok omponenienträgers first conductor tracks are usually punched out of a sheet metal and, if necessary, prepared by bending, for example, for the provision of Konfaktfahnen and / or drilling supplementary. The thus prepared conductor tracks, which may still have supporting and / or connecting webs are then in a housing of the Electrocomponent carrier inserted. Subsequently, insulating ^.Matena] is injected into a first step for the purpose of fixing of the conductor tracks' in the housing. Then connecting and / or trimming webs - if present - are separated between the tracks. Finally, the housing is filled by injecting insulating Maierial in the intended manner.

Account ktf foresight stand out of the insulating .Material to with components such. to be connected to a switch, for example by soldering. The projecting tabs form the electrical connections of the electrical component carrier, For example, according to German Patent Application 1 0201 221 1 756 a Schatter used at the designated location, so that its contacts can be soldered to the above contacts of the letter sheets.

A Mikroschaiter is an electrical sc holder with a small gap of the contacts in the open state. The distance is only a few millimeters and allows only small electrical loads that can be shaded. Low electric keys in this sense are found in motor vehicle locks.

It is known to use a microshifter in a motor vehicle to detect a condition such as the position of displaceable hoists and pawls in motor vehicle fasteners, the position of doors or flaps, or connecting a charger with a charging socket on vehicles equipped with A pivoting of a lever, a pawl, a door, a flap or the inemanderstecfcen of elec tric plug into an electrical jack actuates a microschaiter. This triggered electrical switching signals the event. An example is known from the publications DE 1 0 2006 059 275 Al and WO 1 3071 91 3 A2. The publication DE 1 0 201 1 089 024 AI discloses an assembly with a Elekirokomponenien carrier and a Schaitvorrichtung "The Schaitvorrichtung the assembly is here mitteis at least one contact area to at least two lead frame conductor and a touch-magnetically displaceable Schaitmedium the assembly, mitteis soft contact areas different punching ladder s are selectively bridged formed. Di for training: a switching functionality provided contact areas are exposed on a surface of the carrier and can thus be swept or contacted by the Schaffmedium on the Trägeraberfläche and thereby selectively bridged. Showings of the Schaitvorrichtung are detectable.

The document DE 10 2004 040 395 A I discloses an electrical switch for a motor vehicle with two tracks and a angeord Neten above the printed conductors Neten switching contact in the form of a deformable snap-action disc. The Schaitkonta kt konfakfsert permanently electrically one of the two tracks. By operating the switch the Schaitkontakt is deformed and thereby connected to the other conductor echkfrisch.

DE 1 0 2006 024 292 A1 discloses a handle for the electrical actuation of a closure on a flap or a door in a vehicle. A punched grid is integrated in an electrical component carrier, which serves as an insert in the housing shape during the injection molding of the cup-shaped handle housing. The Eiekfrokompohenfenträger ^■ has a cup-like receptacle, which is used to insert a deformable snap-action disc at its inner end. The snap is. Component of an electrical switch for electrically connecting static contacts with each other. Unless stated otherwise below, the aforementioned features can be combined individually or in any combination with the subject matter of the invention described below.

It is an object of the invention to provide a further developed microschaifer, which in particular also has a deficiency for the position of the microscan. allowed sharks.

To achieve the object, a microswitch is provided which comprises a conductor element which can be displaced along a surface. At least one, preferably at least two, conductor tracks are integrated in the surface in such a way that they can be contacted by the displaceable test element. By pressing the icroschalters the movable conductor element is at least partially moved. During the displacement, the displaceable conductor element lies on the surface along which the displaceable conductor element is displaced.

By moving two electrical conductors are electrically connected or an electrical connection between two conductors is interrupted. The displacement thus causes an electrical switching.

One or more Kontaktaberflächen that connect electrically by moving, have different electrical ieitfähige Bereic hehe in such a way that change by moving electrical resistances of electrically connected surfaces. It can then be determined by contrast measurements a plurality of different Schalterstetlunge. Is such a Mikroschötter for a position detection used, so more than two different positions can be detected, in particular, the displaceable teitereiernent arcuate and elastically deformable. At least one end of the arcuate conductor element lies on the surface in which the one or more conductor tracks are integrated. For displacement, the arcuate conductor element is elastically deformed in such a way that at least one end region, preferably the two end regions of the arcuate conductive element, is displaced.

One end of the arcuate, elastically deformable conductor element may be permanently connected to an electrical conductor and / or be permanently mounted. When you press the microschaifers then only the other end is moved so as to switch electrically. U, a. for manufacturing reasons, however, it is preferable that both ends - as described nachf olgend - verscho en by operating the microschaifers along a surface with integrated conductor tracks. Such an ifcroschaiter can be very small in size and still allow to detect a plurality of positions.

A surface that contacts another surface by moving the conductor element knows! in one embodiment different metals or different metal alloys. As a result, mechanically resistant surface areas are provided with different electrically releasable areas.

In one embodiment, the microswitch has more than two conductor tracks, which can be electrically contacted by displacement. This can be contacted further improved different positions of the microschaifers. In a technically simple to manufacture embodiment of the invention, the one or more Oberfiächenbereiche the movable Leifereiemenfs, the electrical .kontaktieren by moving an electrical conductor of the MikroschqHers, electrically different conductive Oberfiächenbereiche and in particular due to different efaijen from which or the Oberfiächenbereiche formed are. All of the micro-switches' permanently mounted tracks can then be made from a single sheet by punching, which simplifies manufacturing! ^', In one embodiment of the invention, the Oberflöchenbereich that can accommodate different areas ieitfähige u is, by a _Kontaktpil. le provided. The contact pill is firmly connected to an electrical conductor or at least partially displaceable Leitereiement, for example by soldering. This allows a targeted separate production of the surface, the dif ferent heissfähige Oberflächehberehehe have. In one embodiment, the differently conductive Oberfiächenbereiche strip-shaped and perpendicular to the direction of displacement of at least partially displaceable leifereiemenfs. By means of this refinement, a plurality of positions or positions of the microswitch can be further improved.

In a refinement of the invention, poorly conductive areas consist of stainless steel, iron or brass or a metallic alloy, since alloys routinely conduct electricity in an inferior manner in comparison to monomials. The invention further relates to a Eiektrokomponententrager me- a .Basil part of electrically insulating material and electrical conductor tracks for connecting electrical components, wherein conductor tracks are enveloped by the material of the base part. At least two, preferably three electrical tracks of the Eiektrokomponenfenträgers are an integral part of the electrical microswitch,

With this configuration, an electrical switch does not need to be soldered to protruding contacts of an Eiekfrokomponentenfrägers. Conductor tracks which already comprises an egg-shaped component carrier are an immediate component of the electrical microswitch. The production effort is correspondingly low. If at least three electrical conductor tracks are part of the switch, a plurality of positions of the switch can be further detected in a simple manner in a simple manner. The switch is very simple and therefore robust and durable. In an advantageous embodiment of the invention, four tracks are present, which are an integral part of the switch, in the idle state, that is, in the non-actuated state of the switch, contacted the arcuate conductor element advantageously two internal tracks, internal tracks are those that between two other tracks of the microswitch. If the switch is actuated, this will cause that no longer the two internal conductor tracks are electrically connected to each other, but instead terbahnen the two outer lying Lei. This can be used, for example, to detect the position of the microswitch. The Letterbahnabschnitte the Mikro.schatters, which can be konfakflert of the arcuate Leitereie enf, advantageously-parallel to each other, so as to minimize the required construction space,

The Mikrashaker comprises in one embodiment a cap or a blanket! with a central region and an adjoining region of deformable plastic material. The middle section transmits such a force to the arcuate lever element when it is actuated, that it is displaceable in the opposite direction. In one embodiment of the invention, the portions of the tracks that may be contacted by the arcuate lever element close flush with adjacent surfaces, at least with the surface, on the ends of the arcuate conductor member or on the ends of the arcuate conductor member by actuation As a result, the force which is expended for actuating the "switch" is advantageously kept low.

In one embodiment of the invention, the switch comprises guide means and / or Posffionsmitfei ent to lead the arcuate Leltereie ent and / or to position, in one embodiment of the invention there is a protruding from the surface of the Elektrokomponenfenträgers pin passing through a hole in the arcuate Conductor passes through. Through this Posi ^{'tion.smittel} ensures a technically straightforward manner that the arcuate teifereiernenf maintain its position relative to the conductor tracks. In an advantageous embodiment of the invention, the two ends of the arcuate Leitereiements are guided by adjacent webs. Faulty movements are thus avoided. in one embodiment of the invention, the ends of the arcuate Leitereiements are bent and opposite to the other arc shape of the arcuate Leitereiements. As a result, frictional resistances are minimized, which occur during actuation of the microslicer.

An Eiekfrokomponentenfräger with the micro-switch can and are sol.1 electrically connected to at least two other electrical components. This distinguishes one

Elecfrokomponenrenfrager of a .Mikroschalter, which is not an integral part of a Eiekfrokompanententrägers. Examples of further components within the meaning of the present invention are one or more sensors or detectors, one or more motors, one or more further microswitches. Also, in addition to the printed conductors which are the immediate constituent of the integrated microswitch, the electronic component feeder also has further printed conductors.

Since the micro-switch is compact, small and lightweight and can be well protected from environmental influences, it is particularly suitable for use in motor vehicles, in particular to determine a position of a component of the motor vehicle _, such as a component of a Kraftfahrzeugs.chiosses or the position of a door, a flap, a plug or a camera.

Show it: FIG. 1 shows components of the electric component carrier in the unassembled condition;

FIG. 2: electrocomponent delay;

Figure 3: section through the Elektrokomponenfenträger in not

actuated state;

Figure 4; Cut through the ESekirokornponententräger m actuated

Status.

FIG. 5 shows a section through a second electron-particle carrier in the non-actuated state;

Figure 6; Section through the second Elekrok ^' omponentenfräger in the actuated state;

Figure 7; enlarged ^{'representation} of a section of a fiber end in a first position;

FIG. 8: an enlarged illustration of a detail of a conductor end in a second position;

Figures 1 to 4 illustrate the structure of a ikrösdhaSters, which is integrated in a Eieklrokomponenfenfräger l. The Efektrökompönenfenträger includes a base part 2 of electrically insulating material and electrical conductors 3, A. 5. The base part by a plastic housing and be made in the housing injected material. The pre-injection into the housing inserted tracks 3, 4, 5 are partially enveloped by the material of the Basisistis 2. Four electrical interconnects 4, 5 of the Efeklrokomponententrägers 1 are an integral part of an electrical microswitch. The micro-sampler comprises an arcuate conductor element 6, which is elastically deformable. By operating the Mikroschaiters the arcuate L urther Yeni ^'is deformed elastically ent 6 such that the two end regions are moved .7 of Leifereiements. 6 Figure 4 show! in the cut the shifted and consequently the actuated state, By moving the two end portions 7, the two electrical i

Conductor tracks 4 electrically connected to each other. The electrical connection between the two interconnects 5, however, is interrupted by pressing. in the resting state of the switch 1 contacted the arcuate Leiferelement 6 with its end portions 7, the two inner conductor tracks 5, as Figure 3 illustrates. These inner conductor tracks 5 are located between the two further conductor tracks 4.

The end regions: 7 have two different stripes on the surface that confuse the printed conductors 5. Metal with different electrical conductivities. This leads to measurable changes in resistance during a shift. The vvidersfandsverönderungen allow further information about the position of the arcuate conductor element, which is caused by the degree of Niederdröckens the cap 13.

The conductor track portions of the microsephaser, which are arranged between the two webs 8 and which can be confakfiert of the arcuate Leitereiemenf 6, parallel to each other, so as to minimize the required space. These sections or regions of the conductor tracks 4, 5, which are arranged between the two webs 8 and which can be conffed by the arcuate conductor element 6, terminate with their surface flush with the adjoining surface 9 of the insulating material. Moreover, the surfaces of the tracks 4, 5 are flush with the adjacent Oberfiäche, as far as they are located within the vorschiehenden annular edge IG. There is one from the surface of the Eiektrofcomponentfenfrägers? protruding pin 1), which learn through the hole Γ2 in the arcuate Leite s! 6 passes through which serve as Pqsifionsmiflei .. The two ends 7 of the arcuate Leiferelements 6 Sl iä guided by the laterally adjacent webs 8.

The ends 7 of the arcuate Leitelemehfs 6 are bent and opposite to the other arc shape of the arcuate Leitereiements 6. This arcuate Auflagefiächen be created for the end regions 7, whereby Reibungswidersfände are kept low, which occur during the 8e tötigem the micro-switch l.

The protruding edge 10 serves for the dustproof and moisture-tight fastening of the cover 13. The cover 13 is deformable, as the comparison of FIG. 4 with FIG. 3 illustrates.

The tracks 3 of Eiekfrokomponententrägers are not Bestandfei! of the microschaiter. These should be electrically connected to another electrical component.

An inboard edge 14 of the lid rests on the arcuate Leitereiemen.i 6. By pushing down the lid 13, the arcuate Leitereiemenf 6 is thereby pressed down and actuated the Mikroschalfer so. For pushing down an area 15 of the lid 13 is provided which extends from the outside in the direction of the edge in a cylindrical shape. The pin 11 extends into the cylindrical shape, which at the same time serves to guide the cover 13. Seen from the region 15, the cover 13 extends in a wave-like manner (1.6) in the radial direction. This facilitates the actuation. Figures 5 and 6 show an embodiment of the invention with three tracks of the microschaifers. The conductor track 1 7 is widened in comparison to the conductor tracks 4 and 5, so that there is always a Con to m arcuate conductor element 6 is present. One of the two Letter Lanes 3 or 4 can be used to detect or defeat the position of the Micro Lifter. But it is also possible to use both interconnects 4 and 5 for switching »

FIGS. 7 and 3 illustrate the determination of two further positions of the arcuate Leitereiemenfs 6 due to different ^' good heiffähigen portions of Leiterelemen1end.es 7. The section 7a consists of a poorly conductive metal. Section 7b consists of a good conductive metal _. Surfaces of the two sections 7a and 7b, which Kgs Konfakfieren the tracks 4 and 5, Bahrien run se.nfc.rech † to the direction of movement of the end 7. in the case of Figure 7 contacted only the ^• comparatively poorly conductive section 7 a the electrical ^' Conductor 4. There is now an electrically conductive connection. However, the ohmic resistance is relatively high. The measurement of this resistance signals the position of the microschaizer shown in FIG. 7. If the lid 1 3 is pressed further in the direction of the ejection component window carrier, the highly conductive section 7b contacts the electrical conductor path. The electrical resistance drops, indicating that the position shown in FIG. 8 has been reached.

This can be used, for example, to detect the position of a pivotable rotary shutter in a soft vehicle shell which can be latched by one or more pawls in a pre-scrape position and in a main-latch position; if the end 7 configures the conductive track 4, then the catch in an opening position, the end 7 reaches the one shown in FIG Position, so is the DrehfaHe in the position Vanast, If the DrehfaHe reaches the position shown in Figure 8, the DrehfaHe has reached the position of main load,. If there is no electrically conductive contact, the rotary is in an intermediate position during opening or closing *, with only one compact built. ikroschalfer can be classified as a plurality of positions.

It is enough, if an end? having different conductive ge sections. However, it is preferable that both ends 7 have different conductive portions 7a and 7b. Resistance changes can then either be amplified to facilitate the measurement. It is also possible, however. To increase variation possible. Ends, instead of the 7 or to supplement can conductor tracks 4, 5, be provided with different conductive portions 17, for example to Detekfionsmögi ichkeiten ^'to increase.

S u b e c ia s ia s

Eiektrokomponententräge

Ά. ^' Base part

3, 4, 5: electrical trace

6: curved Leitereiement

7 'end of the ladder belt

7a: slickable section of the end of the blanket

7b; good conductive portion of the conductor element end

8th; web

9; surface

) 0: annular edge

Hole in the arched seat belt 55: Decfcei

: in ceiling ceiling cradle: operating area

: wavy course

; conductor path

: ri n g f orm i g e d e c e i rq d

: annular lid area

Claims

claims

1 . Microschaifer with at least one conductor track (4, 5, 1 7), which is integrated in a © surface (9), wherein the microshaker a along a surface displaceable, in particular arcuate, elastically deformable conductor element (6j, soft by operating the microshead. Iters can be moved, which can be electrically switched by moving, wherein a contact surface, which allows by dos electrical shifting by making an electrical contact, unterschiedlic h electrically conductive regions (7a, 7b).

2. Mikroscbaher according to claim i, characterized in that the surface coves (7a, 7b], which kontakfierf another surface by moving the conductor element (6), different metals and / or different etalllegrerungen.

3. Microschaifer according to one of the preceding claims, characterized in that the deformable conductor element {6} has the differently conductive regions (7a, 7b),

4. microschaifer according to any one of the preceding claims, characterized in that the differently conductive regions (7a, 7b,} are arranged web or strip-shaped and perpendicular to the Verschrangungsr.ichtung of the movable Leilereiemenfs (6).

5. Microschaif he according to any one of the preceding claims, characterized in that in the non-actuated state of the microshifter, the deformable conductor element (6) two inside lying Leiterbahnen (5) gestfaktierf, which are arranged between two further interconnects {4}.

Mikroschaiter still one of the preceding claims, characterized in that the regions of the one or more conductor tracks (4, 5, 7}, which can be contacted by the deformable conductor element (6), flush with adjacent surface (9),

Microschaiter according to one of the preceding claims, characterized in that the Mikroschaiter Föhrun.gsmitte! and / or Posttionsmittell to lead the deformable conductor element (6) and / or to position.

Mikroschaiter according to any one of the preceding claims, characterized in that there is a protruding from an inner surface (9) of the Mikraschalters pin Ol), de? through a hole (12) in the deformable Leitereiement (6) hi by t re.

Microschaiter according to one of the preceding claims, characterized in that the two ends (7) of the conductor element (6) are guided by adjoining webs [8],

Electrical component retainer Ii) comprising a base (2) of electrically insulating material and electrical conductors (2, 3, 4, 5, 17) for connecting electrical components, conductor tracks 12, 3, 4, 5, 7 the materia! of the basic part are at least partially enveloped and at least one, preferably at least two of the electrical conductor tracks ! S

(4, 5, 1 7) of the Efektrokomponenienfrdgers more directly

Component of an electrical ^' icrosch.alters are the features of any of the preceding claims umdsst. Ί, using a micro-shaving ^'iters barren

Eiekirokomponen support according to one of the preceding claims for a position determination of a components of a motor vehicle,