DE102009007243A1 - Haptic operating device for motor vehicle, has anchor plate movable from rest position, which is arranged at distance from core around air gap, in to energizing position by energizing coil against force of return spring - Google Patents

Abstract

The device has a magnet motor drive (10) comprising an armature magnet with an iron core enclosed by a coil, and an anchor plate rotatably supported around a pivotable axis at an end region. The anchor plate is coupled with a touchpad (1) at another end region that is opposite to the former end region. The anchor plate is movable from a rest position, which is arranged at a distance from the core around an air gap, in to an energizing position, which is near to the core, by energizing the coil against a force of a return spring.

Description

The The invention relates to a haptic operating device in particular for motor vehicles, with one at least one touch-sensitive Touchpad having a touch area, wherein when touching the touch area a Switching signal can be triggered and the touchpad through an anchor coupled to the touchpad a Magnetbewegungsantriebs in the plane of the touch panel in a certain rhythm is movable drivable and wherein the touchpad over a or more connecting elements connected to a fixed support is.

at Such haptic controls that trigger a Switching signal are used, linear actuation and strokes of the touchpad in a certain rhythm triggered to the Operator feedback on the correct triggering of the To give switching signal.

task The invention is a haptic control device of the above called type to create a simple and störungsunanfälligen structure having.

These Task is inventively characterized solved, that the Magnetbewegungsantrieb a hinged armature magnet with a iron core enclosed by a coil and one at a first edge region having armature plate pivotally mounted about a pivot axis, at the second edge region opposite the first edge region coupled with the touch panel and by energizing the coil counter the force of a return spring from a rest position spaced from the iron core by an air gap in a the iron core near Bestromungslage is movable.

By This training, the magnetic motion drive with simple components be constructed.

to Avoiding disturbing impact noises when moving back the anchor plate from the Bestromungslage in the rest position, the Anchor plate in its rest position to be in contact with a spring stop.

In simple and low installation space requiring and easily mountable Training can be the return spring a freestanding return spring arm and / or the spring stop is a free-floating stop spring arm, which with its one end at or near the bearing point of the anchor plate arranged and in the same pivoting direction as the anchor plate is deflectable and at its freiragendem end the anchor plate with its free end area in plant or can be applied.

there is a defined deflection of Anschlagfederarm and / or Return spring arm reached, when the stop spring arm and / or the return spring arm leaf springs are.

To a low-friction support the anchor plate in the region of the free end of the Anschlagfederarms or the Rückstellfederarms leads it, if the anchor plate by means of a projecting from the plane of the anchor plate supporting member at a radial distance from the bearing point on the Anschlagfederarm and / or on the return spring arm in Investment or can be invested.

To can component and montagesparend the support element one out of the plane be the anchor plate bent out notch the anchor plate.

To leads to a compact structure it if the anchor plate with its one or two opposite each other Page areas over the front of iron core and coil protrudes and the one or both sides of the Ankerplat te the return springs and / or the spring stops in plant or can be applied.

Ragen both side areas and are on return springs and / or spring stops in Appendix or can be applied, then an interlocking of the anchor plate by unilateral application of force avoided.

at Using same material will be different in a simple way spring resistances of stop spring arms and return spring arms achieved when the support spring arms facing the support elements a greater radial distance to the bearing point, as facing the return spring arms Supporting elements.

The from the stop spring arm and / or the return spring arm during deflection generated spring force can be progressively increasing. This avoids disturbing in a simple way Stop noises when Reaching the energizing position and the rest position.

To can the Anschlagfederarm and / or the Rückstellfederarm even the be formed progressively increasing spring force generating.

Around but inexpensive use simple and same cross-section spring arms to be able to can the the Rückstellfederarm in the Bestromungslage the anchor plate on one or more return spring supports to be in plant.

To determine the progression, the return spring can with increasing deflection in the Bestromungslage successively arrive at return spring supports to the plant, which are arranged at an increasingly radial distance from the bearing.

It but it is also possible that the return spring support a Having support surface, the stood with increasing radial Ab from the area of the bearing starting in the pivoting direction of the return spring in the Bestromungslage arcuately arched is.

In Similarly, the Anschlagfederarm in the rest position of Anchor plate on one or more stop spring supports be in abutment and the stop spring with increasing deflection in the rest position successively on stop spring supports get to the plant, which in an increasing radial distance to Bearing arranged or the stop spring support has a Support surface on, the with increasing radial distance from the area of the bearing starting in the pivoting direction of the stop spring in the rest position arcuate domed is.

To a space-saving training with a low number to be followed Tolerances it leads if at the first edge area of the anchor plate in a direction the pivot axis extending pivot roller is arranged between the fixed ends of Rückstellfederarm and Anschlagfederarm is pivotally mounted.

A simple correct position mounting of the spring arms is possible in that a first spring arm is L-shaped, wherein the first leg of the L the Anschlagfederarm and the second leg of the L a firm can be arranged first mounting arm.

This applies in the same way when a second spring arm L-shaped design is, wherein the first leg of the L L the Rückstellfederarm and the second Leg of the L forms a fixedly arranged second mounting arm.

there can Space saving, the first mounting arm and the second mounting arm on top of each other be arranged.

Point the free end of the first attachment arm and / or the second An attachment arm in a recess of a stationary component the operating device usable bend, so is a simple Steckmontage without the need of fasteners for Attachment of stop spring arm and return spring arm possible.

to reinforcement the magnetic force acting on the anchor plate may be the iron core have a U-like yoke whose base with the anchor plate opposite end of the iron core is connected and whose legs the coil are passed around in the direction of the anchor plate.

In order to Is it possible to design the Magnetbewegungstrieb small dimensioned and thus saving space.

has a celebration with the carrier connectable housing part a receiving recess into which the hinged armature magnet used is, so that the magnetic motion drive is a separate mountable unit, which is no longer adjusted when installed in the operating device must become.

A Reduction of the required components is achieved by on the housing part within the receiving recess, the support elements for the Anschlagfederarm and / or the return spring arm are formed, wherein the recess for receiving the bend of the second attachment arm may be formed on the housing part.

to Easy installation of the pre-assembled Magnetbewegungsantriebs can the housing part by means a Schraubbefestigung be firmly connected to the carrier.

Consist all or all essential components of the magnetic motion drive Made of metallic materials, these components can with high dimensional accuracy be made so that after assembly no or no essential adjustment of the Magnetbewegungsantriebs is required.

This allows also the air gap between the anchor plate at rest and to keep the iron core low.

One embodiment The invention is illustrated in the drawing and will be described below described in more detail. Show it:

1 a perspective bottom view of a first embodiment of an operating device,

2 a section of the control after 1 in cross section,

3 an enlarged section of the control after 1 .

4 a top perspective view of the Magnetbewegungsantriebs the operating device according to 1 .

5 a perspective side view of the Magnetbewegungsantriebs after 4 without housing,

6 a side view of the Magnetbewegungsantriebs after 4 without housing,

7 a plan view of the Magnetbewegungsantriebs after 4 ,

The illustrated operating device has a touchpad 1 whose top is covered with a transparent foil 2 is provided, which has a plurality of transparent touch-sensitive sensing areas, not shown.

The Touch ranges can Capacitive tactile areas are at the touch of a switching signal is triggered, the one to be operated Device can be fed.

The touchpad 1 has a rectangular frame 3 whose inner area is covered with a transparent plate 4 is closed on the slide 2 is applied.

On the short sides of the frame 3 are with their one ends in each case two spring arms 5 arranged with a rectangular cross-section at a distance from each other, perpendicular to the side of the touch panel 1 What are the reasons for the film 2 turned away.

The spring arms 5 extend with their longitudinal sides parallel to the short sides of the frame 3 and are with their second ends on a support 6 fixable.

The second ends of the spring arms 5 are in camp stands 7 of the carrier 6 firmly clamped.

The bearing blocks 7 are on the center of the carrier 6 facing side of the respective spring arms 5 arranged and have at their the spring arms 5 facing sides supporting surfaces 9 with a curvature that extends over part of the distance between straps 6 and keypad 1 extends.

Starting from the attachment points of the spring arms 5 on the bearing blocks 7 approach the support surfaces 9 towards the other end towards the mid-range of the wearer 6 ,

This is the means of the spring arms 5 worn and over this with the carrier 6 connected touchpad 1 in the direction of its longitudinal extent relative to the carrier 6 deflectable.

The spring arms form 5 a parallelogram, allowing other deflections, as in the longitudinal direction of the touchpad 1 are not possible.

On the carrier 6 is still a magnetic motion drive 10 arranged on touching a Tastbereiches and triggering the switching signal to the deflection on the touch panel 1 acts.

This deflection takes place alternately via a path in the order of magnitude of 0.2 mm to 0.5 mm, wherein each scanning range is assigned a separate rhythm in which the touchpad 1 upon touching a sensing area of the magnetic motion actuator 10 is driven swinging.

At every deflection of the touchpad 1 arrive the spring arms 5 on the one short side of the frame 3 increasingly to rest against the bulges of their associated support surfaces 9 , so that at the end of a deflection, the spring arms 5 at least largely to their assigned support surfaces 9 are in plant.

The swinging back then takes place when the magnetic movement drive is switched off 10 by the spring force of the spring arms 5 ,

This will get the other two spring arms 5 to rest on their assigned support surfaces 9 ,

This Oscillation rhythm is caused by the touching the touch area operator Haptic detectable and recognizable.

haptic Thus, both a feedback, that triggered the switching signal because of the recognition of the special rhythm, which scanning range is actuated has been.

In order to the operator can determine whether they are the touch range to be operated by them indeed too touched would have.

To first the location of the respective actuated scanning range on the touchpad 1 Visually recognize is on the slide 2 opposite side of the touch panel 1 on the carrier 6 a liquid crystal display 12 arranged, the displayed characters and / or symbols the operator through the transparent plate 4 of the touchpad 1 able to see.

there is behind each touch area a character associated with this and / or Icon arranged.

The in the 4 to 7 shown magnetic movement drive is a separately assembled unit with a frame-like housing part 8th , the three through support holes 11 having, in the screws, not shown for attaching the unit to the carrier 6 are insertable.

The housing part 8th has a rectangular receiving recess 13 ,

In one longitudinal wall 14 the receiving recess 13 is a yoke plate 15 a yoke 16 made of a soft magnetic material (iron) attached, from which at a distance from each other two legs 17 of the yoke 16 in the receiving recess 13 protrude.

Midway between the thighs 17 protrudes parallel to these an iron core 18 in the receiving recess 13 that of a coil 19 is enclosed.

On the yoke plate 15 opposite side of the coil 19 enclosed iron core 18 is an anchor plate 20 arranged, which is pivotally mounted about a pivot axis at its lower edge region.

The anchor plate 20 protrudes with its two opposite side areas on the front side of iron core 18 and coil 19 out.

In these two side areas has the anchor plate 20 one each along its lower edge area ersteckende pivot axis 21 , each between fixed ends of a Rückstellfederarms 22 and a Anschlagfederarms 23 is pivotally mounted.

The coil 19 near, formed as leaf springs return spring arms 22 are on to the housing part 8th trained support surfaces 24 can be applied, with increasing the radial distance from the region of the pivot rollers 21 starting in the pivoting direction of the anchor plate 20 and thus also in the pivoting direction of the return spring arm 22 Arched arched.

The coil 19 further, formed as leaf springs stop spring arms 23 are on to the housing part 8th trained support surfaces 25 can be applied, with increasing the radial distance from the region of the pivot rollers 21 starting in the pivoting direction of the anchor plate 20 and thus also in the pivoting direction of the Anschlagfederarms 23 Arched arched.

Starting from the range of swivel rollers 21 are the support surfaces 24 and 25 Dented diverging from each other, with the support surface 25 of the stop spring arm 23 from the pivoting roller 21 extends radially further than the support surface 24 of the return spring arm 22 ,

The stop spring arm 23 forms a first leg of an L-like spring arm, the second leg of a first mounting arm 26 forms.

At the free end of the mounting arm 26 there is an angling 27 in a recess 28 of the housing part 8th protrudes.

Furthermore, also forms the Rückstellfederarm 22 a first leg of an L-like spring arm, the second leg of a mounting arm 29 forms and at its free end into the recess 28 outstanding bending 30 having.

The attachment arms 26 and 29 as well as the bends 27 and 30 extend contiguously, with the bends 27 and 30 under pressure in the recess 28 are used, so that the L-like spring arms on the housing part 8th are attached.

In the areas of the spring arms, the anchor plate 20 from the plane bent out notches on.

They form the stop spring arms 23 directed notches support elements 31 through which at a radial distance to the pivot rollers 21 the stop spring arms 23 can be acted upon.

Further, to the return spring arms 23 Directional notches form support elements 32 , through which at a closer distance to the pivoting rollers 21 as the stop spring arms 23 the return spring arms 22 are charged.

Since the stop spring arms 23 and the return spring arms 22 are made of the same material, the spring force of the return spring arms outweighs 22 the spring force of the stop spring arms 23 and holds the anchor plate 20 in the case of a de-energized coil 19 in the in 6 illustrated rest position in contact with the support surface 25 ,

In this position is between the anchor plate 20 and the iron core 18 as well as the coil 19 an air gap 33 of approximately 0.5 mm available.

Will the coil 19 energized and generates a magnetic field, then the anchor plate 20 from this against the forces of the return spring arms 22 in their energizing position near the front of iron core 18 and coil 19 drawn.

Due to the curvature of the support surfaces 24 This reduces successively the effective spring length, which leads to a disproportionate increase in the spring forces.

This will be a hard hit on the Return spring arms 22 in their Endauslenkung on the support surfaces 24 avoided.

At the same time lead the high spring forces in the Endauslenkung the return spring arms 22 at a termination of the energization of the coil 19 to a high acceleration of the return pivoting movement of the anchor plate 20 ,

The bulges of the support surfaces 25 provide analogous to the support surfaces 24 for that there is no hard hitting the stop springs 23 on the support surfaces 25 comes.

This leads to an at least largely avoiding disturbing noises.

Through a rhythmic energization of the coil 19 There is a corresponding rhythmic movement of the anchor plate 20 ,

Because the anchor plate 20 at its the edge region of the pivot rollers 21 opposite edge region protruding Mitnehmeransätze 34 by means of which they are connected to the touchpad 1 coupled, the rhythmic movement is on the touchpad 1 transferred and can be detected by the operator haptic.

1

Touchpad

2

foil

3

frame

4

plate

5

spring arms

6

carrier

7

bearing blocks

8th

housing part

9

support surfaces

10

Magnetic motion drive

11

stepped holes

12

liquid-crystal display

13

receiving recess

14

first longitudinal wall

15

yoke plate

16

yoke

17

leg

18

iron core

19

Kitchen sink

20

anchor plate

21

pivoting roller

22

Rückstellfederarm

23

Anschlagfederarm

24

support surfaces

25

support surfaces

26

Mounting Arm

27

angling

28

recess

29

Mounting Arm

30

angling

31

support elements

32

support elements

33

air gap

34

locking dogs

Claims (24)

Haptic operating device, in particular for motor vehicles, having a touch panel having at least one touch sensitive area, wherein a contact signal is triggered by touching the touch area and the touchpad is driven by a coupled to the touchpad armature of a Magnetbewegungsantriebs in the plane of the touchpad in a certain rhythm and wherein the Touchpad is connected via one or more connecting elements with a fixed support, characterized in that the magnetic movement drive a hinged armature magnet with one of a coil ( 19 ) enclosed iron core ( 18 ) and at a first edge region about a pivot axis pivotally mounted anchor plate ( 20 ), which at the first edge region opposite the second edge region with the touchpad ( 1 ) is coupled and by energizing the coil ( 19 ) against the force of a return spring from one around an air gap ( 33 ) of the iron core ( 18 ) spaced rest position in an iron core ( 18 ) is movable near Bestromungslage. Haptic control device according to claim 1, characterized in that the anchor plate ( 20 ) is in its rest position in contact with a spring stop. Haptic control device according to one of the preceding claims, characterized in that the return spring is a freiragender Rückstellfederarm ( 22 ) and / or the spring stop a freestanding stop spring arm ( 23 ) with one end at or near the bearing point of the anchor plate ( 20 ) and in the same pivoting direction as the anchor plate ( 20 ) is deflectable and at its freiragendem end the anchor plate ( 20 ) is in plant or can be applied with its free end area. Haptic control device according to claim 3, characterized in that the stop spring arm ( 23 ) and / or the return spring arm ( 22 ) Leaf springs are. Haptic control device according to one of claims 3 and 4, characterized in that the anchor plate ( 20 ) by means of one of the plane of the anchor plate ( 20 ) projecting support element ( 31 . 32 ) at a radial distance to the bearing point on the Anschlagfederarm ( 23 ) and / or on the return spring arm ( 22 ) is in plant or can be applied. Haptic control device according to claim 5, characterized in that the support element ( 31 . 32 ) one from the plane of the anchor plate ( 20 ) bent-out notch of the anchor plate ( 20 ). Haptic control device according to one of the preceding claims, characterized in that the anchor plate ( 20 ) with its one or both opposite side regions over the front side of iron core ( 18 ) and coil ( 19 ) protrudes and the one or both sides of the anchor plate ( 20 ) The return springs and / or the spring stops in investment or can be applied. Haptic control device according to one of claims 5 to 7, characterized in that the stop spring arms ( 23 ) facing support elements ( 31 ) have a greater radial distance from the bearing point than the return spring arms ( 22 ) facing support elements ( 25 ). Haptic control device according to one of claims 3 to 8, characterized in that the return spring arm ( 22 ) in the energizing position of the anchor plate ( 20 ) is in contact with one or more return spring supports. Haptic control device according to claim 9, characterized characterized in that the return spring with increasing deflection into the current supply layer successively on return spring supports comes to the plant, which in an increasing radial distance to Storage are arranged. Haptic control device according to claim 9, characterized in that the return spring support a support surface ( 24 ), which with increasing radial distance from the region of the bearing point in the pivoting direction of the Rückstellfederarms ( 22 ) is arched arched in the Bestromungslage. Haptic control device according to one of claims 3 to 8, characterized in that the stop spring arm ( 23 ) in the rest position of the anchor plate ( 20 ) is in contact with one or more stop spring supports. Haptic control device according to claim 12, characterized characterized in that the stop spring with increasing deflection in the rest position successively comes to stop spring supports to the plant, arranged in an increasing radial distance from the bearing are. Haptic control device according to claim 12, characterized in that the stop spring support a support surface ( 25 ), which starting with increasing radial distance from the region of the bearing point in the pivoting direction of the Anschlagfederarms ( 23 ) arched in the rest position arcuate. Haptic control device according to one of claims 3 to 14, characterized in that at the first edge region of the anchor plate ( 20 ) extending in the direction of the pivot axis pivoting roller ( 21 ) is arranged between the fixed ends of Rückstellfederarm ( 22 ) and stop spring arm ( 23 ) is pivotally mounted. Haptic operating device according to one of claims 3 to 15, characterized in that a first spring arm is L-shaped, wherein the first leg of the L L Anschlagfederarm ( 23 ) and the second leg of the L a fixedly arranged first mounting arm ( 26 ). Haptic control device according to one of claims 3 to 15, characterized in that a second spring arm is formed L-like, wherein the first leg of the L L the Rückstellfederarm ( 22 ) and the second leg of the L a fixedly arranged second mounting arm ( 29 ). Haptic control device according to claims 16 and 17, characterized in that the first attachment arm ( 26 ) and the second attachment arm ( 29 ) are arranged one above the other. Haptic control device according to one of claims 17 to 18, characterized in that the free end of the first attachment arm ( 26 ) and / or the second attachment arm ( 29 ) one in a recess ( 28 ) of a stationary component of the operating device usable bend ( 27 . 30 ) exhibit. Haptic control device according to one of the preceding claims, characterized in that the iron core ( 18 ) a U-like yoke ( 16 ) whose basis ( 15 ) with the anchor plate ( 20 ) facing away from the iron core ( 18 ) and whose legs ( 17 ) the sink ( 19 ) embracing towards the anchor plate ( 20 ) are guided. Haptic control device according to one of the preceding claims, characterized in that a fixed to the carrier ( 6 ) connectable housing part ( 8th ) a receiving recess ( 13 ), in which the hinged armature magnet can be inserted. Haptic control device according to claim 21, characterized in that on the housing part ( 8th ) within the receiving recess ( 13 ) the supporting elements ( 31 . 32 ) for the stop spring arm ( 23 ) and / or the return spring arm ( 22 ) are formed. Haptic control device according to claim 19 and one of claims 21 and 22, characterized in that the recess ( 28 ) for receiving the bend ( 27 . 30 ) of the first attachment arm ( 26 ) and / or the second attachment arm ( 29 ) on the housing part ( 8th ) is trained. Haptic control device according to claim 21, characterized in that the housing part ( 8th ) by means of a screw fastening to the carrier ( 6 ) is firmly connected.