DE102011056934A1 - Mobile identification transmitter with a flexible film which at least partially comprises the housing - Google Patents

Abstract

The invention relates to a mobile identification transmitter (1) for activating a safety system (2) of a motor vehicle (3), in particular an access and / or driving authorization system, having a housing (20) in which an electronic unit (30) is arranged can be brought into communication with the motor vehicle side safety system (2), accessible to a user outer side (4) having at least one actuating element (12) which is suitable for activating an electrical component (31) of the electronics (30). For this purpose, the invention provides that a flexible film (10) made of plastic at least partially comprises the housing (20) and in the film (10), the actuating element (12) is integrated such that no gap formation between the actuating element (12) and the Actuating element (12) adjacent region (13) of the outer side (4) is present.

Description

The invention relates to a mobile identification transmitter for activation of a safety system of a motor vehicle, in particular an access and / or driving authorization system, with a housing in which an electronic unit is arranged, which can be brought into communication with the motor vehicle side safety system, accessible to a user outside which has at least one actuating element which is suitable for activating an electrical component of the electronics.

In the DE 10 2005 014 563 A1 an electronic key is described, which transmits coded signals as an identification transmitter to a receiving unit in a vehicle and / or receives from the receiving unit. The electronic key in this case has a housing with a plurality of keys, which are inserted in defined openings of the housing. Between the housing and the keys there is a small gap which is reliably sealed in order to protect the electronics located inside the electronic key from environmental influences, dirt, moisture, etc. Thus, the microswitch disposed below the button or the actuating element can be reliably activated, a large-area membrane is provided. Consequently, a large number of components is necessary to ensure a secure operation of the electronic key.

It is an object of the present invention to provide a mobile identification transmitter, which avoids the disadvantages mentioned above, in particular a mobile identification transmitter is provided, which allows reliable operation for activation of the electrical component, while few items are necessary for the assembly of the mobile identification transmitter ,

To solve this problem, a mobile identification transmitter with the features of claim 1 is proposed. In the dependent claims preferred developments are listed.

According to the invention, it is provided that a flexible film made of plastic at least partially comprises the housing and in the film, the actuating element is integrated such that there is no gap formation between the actuating element and the region of the outside adjacent to the actuating element. A significant advantage of the invention is that the film over a large area covers at least a portion of the housing, wherein at the same time the actuating element and the adjacent region of the actuating element are connected in the same material on the outside of the mobile identification transmitter. Thus, there is no possibility that in the region of the film, in particular on the actuating element and on its edge region, environmental influences can penetrate into the electronics located within the mobile identification transmitter. The actuating element is in this case aligned correspondingly to the electrical component of the electronics, so that the electronic component can be activated via a manual actuation of the actuating element. The film is preferably less than 500 microns thick and has a high scratch resistance on its surface. Here, the film may have a multilayer structure, wherein the film may consist of at least one of the following materials: polyester (PET), polymethyl methacrylate (PMMA), polycarbonate (PC), polystyrene (PS), PA or thermoplastic elastomers, including on Polyethanbasis. Advantageously, the foil can form the actuating element and the region of the outer side adjacent to the actuating element, so that the foil is a monolithic component for the actuating element and for the adjacent region of the actuating element. The outside of the mobile identification transmitter is a closed unit that has a positive effect on the user for aesthetic reasons. At the same time, the number of components can be significantly reduced for the assembly of the mobile identification transmitter, especially when a mobile identification transmitter is used, which uses a plurality of actuators.

In a further measure improving the invention it can be provided that the film, which is made transparent, has an inner side which faces the housing. Here, the film may consist of a carrier which is at least partially transparent. For example, the carrier may be formed from a thermoplastic material. The transparent film has, inter alia, the task of making design elements provided on the inside of the identification transmitter, such as ornaments, pictograms, symbols, letters or numbers, visible to the user on the actuating element. The arrangement of the design elements on the inside of the mobile identification transmitter, in particular on the inside of the film, has the advantage that these design elements are protected from the effects of the weather and from destruction by direct mechanical stress.

For example, it can be provided that the inside has a coating, in particular the coating is a printing or a metallization. The coating is advantageously a color coating, so that a design element can be imprinted on the inside of the film via the coating. The coating may be, for example, a printing process such as screen printing, offset printing, flexographic printing, digital printing, pad printing, Be executed ink jet printing or toner printing method.

The outside of the film may be further formed with a layer that increases the scratch resistance and / or creates a high gloss surface for the user, so that a visually high-quality product of a mobile identification transmitter is provided. Between the inside coating and / or the outside coating can advantageously be applied an adhesion promoter.

Furthermore, it is conceivable that the housing is colored and / or executed with at least one ornament, pictogram, symbol, letters or numbers, which is particularly visible on the actuator. At the points where design elements bear against the colored housing, these design elements are visible due to the transparency of the film on the outside of the identification transmitter, in particular on the outside of the actuating element.

An advantageous embodiment of the invention may be that the actuating element and the region of the outer side adjacent to the actuating element is designed to be aligned with one another. This means that the outside of the identification transmitter forms a uniform outer surface or outer surface, which may also be curved, for example. At defined locations, the user can recognize color differences that define the actuator. About an active application of force to the actuating element, the internal electronic component can be activated. The film may have different color configurations, which are produced by the inside colored coating. Thus, a variety of optical design options for the identification transmitter can be created, in particular due to the inside coating different materials can be imittiert that give the identification transmitter, for example, a wood design, metal design, etc.

In a further advantageous embodiment, the housing may be molded on the inside of the film via an injection molding process. The film may be, for example, an IMD film or an IML film. The film can be placed in an injection mold and sprayed with the appropriate plastic, which represents the housing of the mobile identification transmitter. So that the plastic can be molded onto the inside of the film reliably, it is conceivable to first apply a bonding agent to the inside of the film.

According to the invention, it can be provided that the electrical component is a button and / or a microswitch. The electrical component is preferably located adjacent and / or below the actuating element, which is partially elastically deformed in an operation by the user, in particular in the direction of the electrical component is deformed to achieve activation of the electrical component. The film has in this case such mechanical properties that when not actuated the actuating element, the film assumes its ground state.

According to the invention, it can be provided that the electrical component is integrated in the film, which means that a signal can be generated via contact and / or deformation of the film, which signal corresponds to the signal emitted by the probe or the microswitch of the other exemplary embodiment. For example, one or more sensors may be integrated in the foil to perform such a function.

In a further measure improving the invention it can be provided that the housing is made of at least two housing shells, wherein at least one housing shell is surrounded on one side with the film, wherein the housing shells are interconnected cohesively with each other. Furthermore, it is conceivable that all housing shells are surrounded by the film. Further, it is conceivable that three housing shells are provided on the mobile identification transmitter, wherein the third housing shell for an emergency key and / or to cover the battery, which means that the third housing shell is a battery compartment lid. For example, the housing shells can be welded together, in particular friction welded or laser welded.

In addition, inside a luminous element may be arranged such that the design element, in particular the ornament, pictogram, symbol, the letter or the number of the inside coating on the actuator is visualized. The light source can be for example an LED, OLED. It is also conceivable that the film is formed with a luminous element, which means that in the film, a light source is integrated. For example, the film may be a luminescent film.

In order to achieve a good haptic behavior in an actuation of the actuating element, the actuating element may have at least one activation element from the surface of the outer side, which extends projectingly from the surface of the outer side.

It is also conceivable that the inside of the actuating element, in particular the inside of the film directly performs a contact on the electrical component. That means that not one Actuation of the actuating element may already abut the inside of the film directly on the contact of the electrical component. It is also possible in a further embodiment of the invention that only upon actuation of the actuating element, a direct contacting of the inside of the film with the electrical component is formed.

The invention also includes that the actuating element has at least one activation element from the surface of the outer side, which protrusion extends from the surface of the outer side. This means that a portion of the actuating element, in particular the activation element is raised from the surface of the outside of the film. This means that the activation element can be felt by the user. This raised location, in particular the activation element can be, for example, an image of the design element, in particular of the ornament, pictogram, symbol, the letters or numbers. The activation element can also be designed as a recess on the actuating element. Also, a combination of activation element is conceivable, which are sublime and formed as a recess.

• 1) Verformung der Folie in eine Grundform,
• 2) Aufbringung einer Beschichtung auf die Innenseite der Folie,
• 3) Anspritzen der Gehäuseschale an die Innenseite der Folie.

Furthermore, the object of the invention is achieved by the method according to claim 15. In the dependent method claims advantageous embodiments of the invention are carried out. According to the invention, the method for producing a housing shell of a housing for a mobile identification transmitter, to which a foil is attached on its outside of the housing shell, comprises the following steps:

• 1) deformation of the film in a basic form,
• 2) application of a coating on the inside of the film,
• 3) Injection of the housing shell to the inside of the film.

Advantageously, pressure and / or temperature admission to the film can take place during step 1). It is also conceivable that an adhesion promoter is applied to the inside of the film before step 2) and / or 3).

Advantageously, step 2) may be performed before step 1), or both steps 1) and 2) may be performed simultaneously.

In a measure improving the invention it can be provided that in a deep-drawing process at least one activation element is deep-drawn, which is part of an actuating element for the mobile identification transmitter. The activation element may have a three-dimensional shape of the design element.

Further advantages, features and details of the invention will become apparent from the following description in which several embodiments of the invention are described in detail with reference to the drawings. The features mentioned in the claims and in the description may each be essential to the invention individually or in any desired combination. Show it:

1 a schematic view of a motor vehicle, which is equipped with a security system, which is brought into communication with a mobile identification transmitter,

2 a schematic sectional view of a mobile identification transmitter, which is externally formed with a flexible film,

3 a further embodiment of a film for a mobile identification transmitter according to 1 .

4 a further embodiment of a film for a mobile identification transmitter according to 1 .

5 a still further embodiment of a mobile identification transmitter, the in 1 can be used

6 a plan view of a mobile identification transmitter and

7 a further embodiment of a mobile identification transmitter, according to 1 Can be used.

In 1 is a mobile identification transmitter 1 shown to activate a security system 2 a motor vehicle 3 serves. The security system 2 may include, for example, an access and / or driving authorization system. The security system 2 with the mobile identification transmitter 1 may be part of a "keyless go" or "keyless entry" system. In addition, the mobile identification transmitter includes 1 an electronics 30 inside a case 20 is arranged, which in 2 is shown schematically. The Electronic 30 also has an electrical component 31 on, for example, a button and / or microswitch 31 can be, the electronic component 31 by an actuation of an actuating element 12 on the mobile identification transmitter 1 can be activated. The electrical component 31 is on a circuit board 32 the electronics 30 , The user exerts a certain force on the actuator 12 out, so that's inside the case 20 lying electronic component 31 can be addressed. About the contact of the electronic component 31 Various actions for communication between the mobile identification transmitter 1 and the motor vehicle 3 or a transmitting and / or receiving unit of the motor vehicle 3 respectively. For example, via an activation of the electronic component 31 Unlocking operations and / or locking operations on at least one motor vehicle door and / or tailgate and / or carried on a tank lid. Other functionalities are also conceivable.

As in 2 is shown, the housing consists 20 from two housing shells 21 . 22 , Above the upper housing shell 21 there is a slide 10 made of plastic. This slide 10 lies directly on the housing shell 21 at. The foil 10 has an area that is an actuating element 12 equivalent. The actuator 12 has the function of a button to that within the case 20 arranged electrical component 31 to activate. The special feature of this mobile identification transmitter 1 is that the foil 10 and the actuator 12 form a common monolithic component, the adjacent region 13 of the actuating element 12 in one piece, of the same material with the actuating element 12 connected is. That means the adjacent area 13 and the actuator 12 completely in the slide 10 are integrated.

The actuator 12 is designed so flexible that an actuation on the outside 4 of the actuating element 12 reliable the electrical component 31 can be activated. At the same time, the film points 10 Such a property that after an actuation of the actuating element 12 the foil 10 , in particular the actuating element 12 , which automatically resumes origin position.

At the slide 10 For example, it may be an IMD slide or IML slide. The foil 10 can be formed of several layers. In 3 For example, it is shown that the film 10 from a carrier layer 11 may be formed, which is transparent. The inside 6 the foil 10 that the housing 20 facing, can be a coating 14 exhibit. This coating 14 Advantageously, a color coating is the appearance, design of the mobile identification transmitter 1 with determined. About the coating 14 can be mimicked a variety of materials, such as a metal appearance, wood appearance etc .. So that the coating 14 is not damaged, altered or worn, the coating is located 14 inside the film 10 , The carrier layer 11 thus provides a kind of protective layer for the coating 14 At the same time, the carrier layer has 11 high UV resistance and high scratch resistance. According to the material composition of the carrier layer 11 can the film 10 on its outside 4 have a high gloss surface.

To increase the high gloss and / or scratch resistance, a coating may be used 19 according to 4 on the carrier layer 11 be applied, so that the carrier layer 11 sandwiched between the inside coating 14 and the outside coating 19 lies.

The inside coating 14 can be at least a design element 40 which, via the transparent carrier layer 11 on the outside of the actuator 12 is visible. The design element 40 For example, it can display ornaments, pictograms, symbols, letters or numbers. For example, it is according to 5 conceivable, this design element 40 , which inside of the film 10 is applied, via a lighting element 5 for the user to visualize. For example, the design element 40 be a pictogram, which stands for unlocking or locking the motor vehicle (see 6 ). As in 5 is shown, the actuator 12 at its edge a flexible area 10a exhibit. This makes it possible to achieve a satisfactory haptic upon actuation of the actuating element 12 to reach. About a corresponding actuation of the actuating element 12 becomes the electronic component 31 pressed, the inside 6 the foil 10 directly on the electronic component 31 acts. Laterally to the actuator 12 is the housing 20 , in particular a housing shell 21 on the inside 6 the foil 10 is injected. 5 further clarifies that the actuating element 12 to the neighboring area 13 of the actuating element 12 can be exalted. In contrast, the surface forms 4a of the actuating element 12 according to 7 and 2 to the entire surface of the film 10 a uniform appearance, that means the actuator 12 and the to the actuator 12 adjacent area 13 the outside 4 executed aligned with each other. Furthermore, it is conceivable that the actuating element 12 according to 5 at least one activation element 12a may have the shape and / or shape of a design element 40 did that, for example, in 6 is shown.

According to 6 shows the foil 10 different actuators 12 on, each with different activation elements 12a with include. The upper activation element 12a has the shape of a lock symbol and the lower actuator 12 has an activation element 12a which has the shape of an unlocking symbol. Both activation elements 12a are raised to the neighboring area 13 of the actuating element 12 , That means the activation elements 12a in its structure protruding from the surface 4a the outside 4 extend. The user can thus activate these activation elements 12a palpate.

In 7 is another possibility of a mobile identification transmitter 1 shown at the inside of the film 10 a recess 7 present in which a transmission means 16 is arranged. Here is the transmission means 16 inside the recess 7 injection molded plastic. Center of the transmission medium 16 there is a contact element 16a that is in the direction of the electronic component 31 extends.

About a force applied to the actuator 12 , lets the foil 10 deform elastically, so that the contact element 16a a defined hub to the inside of the mobile identification transmitter 1 exercises. This allows the electrical component 31 to be activated.

All examples 1 to 7 can with a coating 14 and / or a coating 19 according to 3 and or 4 be executed. Between the layers 11 . 14 . 19 can be adhesion agents 17 . 18 be provided. It is also envisaged that the film 10 According to all illustrated embodiments, the inside is back-injected with a plastic, which is the housing 20 , in particular a housing shell 21 represents. In addition, it can be provided that the complete housing 20 , including all housing shells 21 . 22 with a foil 10 is fully covered.

One of the special advantages of the illustrated mobile identification transmitter 1 is that the housing shell 21 with the respective foil 10 is inexpensive to produce. First, the slide 10 in a first step into a basic form. This basic form is determined by the external shape of the identification transmitter 1 or of the housing 20 certainly. Subsequently, an application of the color coating 14 on the inside 6 the foil 10 , At the same time or after the housing shell 21 . 22 on the inside 6 the foil 10 molded. It may be useful that during the deformation of the film 10 in a basic form a pressure and / or temperature on the film 10 he follows. As a result, the deformation of the film 10 be favored and destroy the coating 11 . 14 . 19 be prevented.

To an actuator 12 to manufacture in 5 or in 6 is shown, is a thermoforming process of the film 10 necessary. For example, a vacuum thermoforming process is conceivable. In the deep drawing process, the film 10 heated, wherein Tiefziehemperaturen between 130 ° C to 250 ° C may be advantageous in which degrees of stretching of the film 10 of up to 350% can be achieved. Depending on the selection of the film 10 and the coatings 14 . 19 the maximum degree of stretching can be varied. The thermoforming process allows the three-dimensional contour of the design element 40 are produced, which protrudes protruding out of the film surface. The design element 40 is at the same time the activation element to be actuated for the user 12a , Of course, the embodiment according to 6 with a corresponding lighting 5 and / or with a transmission means 16 out 7 be combined.

LIST OF REFERENCE NUMBERS

1

 mobile identification transmitter

2

 security system

3

 motor vehicle

4

 outside

4a

Surface of 4

5

 light element

6

 inside

7

 recess

10

 foil

10a

flexible range of 10

11

 backing

12

 actuator

12a

 energizer

13

 adjacent area

14

 Coating, color coating

16

 transmission means

16a

 contact element

17

 bonding agent

18

 bonding agent

19

 coating

20

 casing

21

 shell

22

 shell

30

 electronics

31

 electrical component, microswitch

32

 circuit board

40

 design element

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 102005014563 A1 [0002]

Claims (19)

Mobile identification transmitter ( 1 ) for activating a security system ( 2 ) of a motor vehicle ( 3 ), in particular an access and / or driving authorization system, with a housing ( 20 ), in which an electronics ( 30 ) arranged with the motor vehicle safety system ( 2 ) is communicable to an outside accessible to a user ( 4 ), which at least one actuating element ( 12 ), which is used to activate an electrical component ( 31 ) of electronics ( 30 ), characterized in that a flexible film ( 10 ) made of plastic at least partially the housing ( 20 ) and in the film ( 10 ) the actuating element ( 12 ) is integrated such that no gap formation between the actuating element ( 12 ) and to the actuator ( 12 ) adjacent area ( 13 ) of the outside ( 4 ) is present. Mobile identification transmitter ( 1 ) according to claim 1, characterized in that the film ( 10 ) the actuating element ( 12 ) and to the actuator ( 12 ) adjacent area ( 13 ) of the outside ( 4 ), so that the film ( 10 ) a monolithic component for the actuator ( 12 ) and for the neighboring area ( 13 ) of the actuating element ( 12 ). Mobile identification transmitter ( 1 ) according to claim 1 or 2, characterized in that the film ( 10 ), which is made partially transparent, an inside ( 6 ), which the housing ( 20 ) is facing. Mobile identification transmitter ( 1 ) according to claim 3, characterized in that the inside ( 6 ) a coating ( 14 ), in particular the coating ( 14 ) is a print or a metallization. Mobile identification transmitter ( 1 ) according to one of the preceding claims, characterized in that the outside ( 4 ) of the film ( 10 ) is highly glossy and / or scratch resistant. Mobile identification transmitter ( 1 ) according to one of the preceding claims, characterized in that the housing ( 20 ) and / or with at least one design element ( 40 ), in particular with an ornament, pictogram, symbol, letter or with a number, the design element ( 40 ) on the actuating element ( 12 ) is visible. Mobile identification transmitter ( 1 ) according to one of the preceding claims, characterized in that the inside coating ( 14 ) a design element ( 40 ), in particular an ornament, pictogram, symbol, letter or a number, in particular on the actuating element ( 12 ) are visible. Mobile identification transmitter ( 1 ) according to one of the preceding claims, characterized in that the actuating element ( 12 ) and the actuator ( 12 ) adjacent area ( 13 ) of the outside ( 4 ) are aligned with each other. Mobile identification transmitter ( 1 ) according to one of the preceding claims, characterized in that the housing ( 20 ) inside the film ( 10 ) is injection molded via an injection molding process. Mobile identification transmitter ( 1 ) according to one of the preceding claims, characterized in that the electrical component ( 31 ) a button ( 31 ) and / or a microswitch ( 31 ). Mobile identification transmitter ( 1 ) according to one of the preceding claims, characterized in that the housing ( 20 ) of at least two housing shells ( 21 . 22 ) is executed, wherein at least one housing shell ( 21 . 22 ) on one side with the film ( 10 ), wherein the housing shells ( 21 . 22 ) are interconnected cohesively with each other. Mobile identification transmitter ( 1 ) according to one of the preceding claims, characterized in that inside a luminous element ( 5 ) is arranged such that the design element ( 40 ) of the inside coating ( 14 ) on the actuating element ( 12 ) is visualizable. Mobile identification transmitter ( 1 ) according to one of the preceding claims, characterized in that on the inside of the actuating element ( 12 ) a transmission means ( 16 ) is arranged to access the electrical component ( 31 ), in particular the transmission means ( 16 ) is a plastic soft component. Mobile identification transmitter according to one of the preceding claims, characterized in that the actuating element ( 12 ) on the surface ( 4a ) of the outside ( 4 ) at least one activation element ( 12a ) protruding out of the surface ( 4a ) of the outside ( 4 ). Method for producing a housing shell ( 21 . 22 ) of a housing ( 20 ) for a mobile identification transmitter ( 1 ), whereby on the outside ( 4 ) the housing shell ( 21 . 22 ) a film ( 10 ), comprising the following steps: 1) deformation of the film ( 10 ) in a basic form, 2) application of a coating ( 14 ) on the inside ( 6 ) of the film ( 10 ) 3) injection molding of the housing shell ( 21 . 22 ) to the inside ( 6 ) of the film ( 10 ). A method according to claim 15, characterized in that during the step 1) a pressure and / or temperature on the film ( 10 ) he follows. A method according to claim 15 or 16, characterized in that prior to step 2) and / or 3) an adhesion promoter ( 17 . 18 ) on the inside of the film ( 10 ) is applied. A method according to claim 15 to 17, characterized in that in a deep-drawing process at least one activation element ( 12a ), which is part of an actuating element ( 12 ) for the mobile identification transmitter ( 1 ). Method for producing a mobile identification transmitter ( 1 ) according to any one of claims 1-14.

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