EP2024942B1 - Electronic key - Google Patents

Abstract

The electronic key has a plastic housing (20) with an electronic unit for data communication with the closing device. A receptacle (22) is provided on the housing that has conductive contact elements (28,29) in which an energy store is inserted. A sealing element (23) that encircles the contact elements is permanently placed on the receptacle, and the bottom of the lid rests on the sealing element, thus forming a reliably sealed receptacle, which is delimited by the lid and the housing.

Description

The invention relates to an electronic key, in particular for a locking device of a motor vehicle, with a housing made of plastic, within which an electronic unit for data communication with the locking device is arranged, formed on a housing receptacle having conductive contact elements and in which an energy storage is used , And a lid which is releasably secured to the housing and closes the receptacle.

Closing devices for motor vehicles are often equipped with an electronic operating unit, in particular with an electronic key, to increase the comfort for the user and to increase the theft security.

After a corresponding actuation by the user, data communication takes place between the electronic key and the locking device, in which, for example, a code is exchanged, preferably via electromagnetic waves, so that after positive evaluation of the code, for example the doors, the trunk lid of the motor vehicle, can be remotely operated. and / or locked and other functions can be triggered. An electronic key is, for example, in the DE 103 42 663 A1 described.

In order to supply the electronic key with a necessary energy, Within the housing, an energy storage device is arranged in a corresponding receptacle which is closed off from the environment by a cover which is fastened to the housing. To achieve a reliable seal of the energy storage Within the electronic key, a seal is attached to the lid. During assembly, the lid is fixed with the seal on the housing of the electronic key. It has disadvantageously been shown that during the assembly process, the sealing element can be detached from the lid, whereby the assembly process is disturbed unnecessarily.

In order to prevent detachment of the seal, it is known to pre-weld the seal on the cover during the manufacturing process. Disadvantageously, in some cases at the top of the lid, due to the thermal evolution of heat, visible deformation sites appear, thereby degrading the overall appearance of the electronic key.

A seal is out of the DE 197 18 453 C1 discloses a housing of the electronic key with an undetachably arranged elastic component disclosed. The elastic component is formed as a leg with a circumferential ridge, wherein the leg serves to rest the electronics unit and wherein the web is used as Dichtalement. It has proved to be a disadvantage that the web does not ensure reliable sealing of the housing formed in the receptacle when an approximately radial force with respect to its surface is applied to the lid.

The US 2004/201512 A1 discloses an electronic key with a housing and a housing cover, between the housing and the lid, a sealing element is provided, which is annular and ensures no secure seal against radial displacement of the lid.

Furthermore, from the DE 196 05 201 A1 an electronic key with a housing and a lid known in which either the housing or the lid can be provided with a circumferential sealing element. However, even this sealing element does not provide a reliable seal when radial forces are applied to the housing or to the cover.

It is an object of the present invention to provide an electronic key, in which the disadvantages mentioned are avoided, in particular an electronic key is provided, which ensures a reliable tightness of the energy storage within the electronic key and can be easily mounted, the energy storage on comfortable and can be safely installed or replaced,

To solve this problem, an electronic key with the features of claim 1 is proposed. In the dependent claims preferred developments are carried out.

For this purpose, the invention provides that on the recording, a sealing element is arranged inextricably surrounding the contact elements, and the lid rests with its underside on the sealing element, whereby a reliably sealed receptacle is formed, which is limited by the lid and the housing substantially. According to the invention it is further provided that the sealing element has a first and a second sealing region, wherein the sealing element is formed with a groove open on one side to the lid, which separates the first and the second sealing region from each other. By this separation of the sealing areas, a multi-stage sealing can take place. It is particularly advantageous that an axial sealing takes place at the first sealing region and a nearly radial sealing at the second sealing region. The first and the second sealing region are integrally connected and materialeinhetlich each other and form the sealing element, which is preferably molded onto the first collar member. The lid abuts directly on both sealing areas, which are further deformed elastically by defined areas of the lid, wherein the sealing element is not only axially but also almost radially pressurized by the lid and thus an increased tightness of the electronic key can be achieved.

During the assembly process, the sealing element is already fixed inseparably fixed to the housing, so that the cover can be securely placed on the receptacle and thus a reliable seal of the recording, in which the energy storage is used during operation represents. There is no risk that the sealing element will be lost during assembly, since it is expediently preassembled, integrally arranged on the housing. The sealing element may be made of an elastic plastic. Advantageously, acts on the sealing element, a certain contact pressure, which is exerted by the lid used. The sealing element comprising a material comprising a thermoplastic elastomer is elastically deformed in a preferred embodiment by the contact pressure, wherein it bears against the cover and the housing and seals the receptacle.

In an advantageous embodiment, the housing with the sealing element is a 2K injection molding station. Alternatively, the sealing element may be positively and / or non-positively and / or materially secured to the receptacle. In a further embodiment, it is possible here to weld the sealing element to the housing in a laser-supported manner. There is no risk here that externally visible on the electronic key caused by this thermal attachment.

Advantageously, the receptacle has at its edge region a projection-like first collar element with an inner side and an outer side. In addition, it may be expedient that the housing has a wall extending at a distance from the first collar element which surrounds the first collar element. This forms between the first collar member and the wall on one side open channel on Housing in which the sealing element is located, which is attached to the outside of the first collar element. Advantageously, the sealing element, the first collar element and the wall are designed substantially circular. Advantageously, there is a gap between the wall and the sealing element resting against the first collar element. Conveniently, this distance can be provided for a second collar element, which is embodied on the underside of the lid. In the attached state of the lid on the housing, the projection-like second collar element is located between the wall and the sealing element. The second collar element is adapted in a further embodiment of the invention according to the geometry of the wall or of the first collar element of the housing. In a further embodiment of the invention, the sealing element on the first collar element - that means on the underside of the lid facing side of the first collar element - be at least partially arranged. It is hereby included that the sealing element can be fastened only on the first collar element or on the outside of the first collar element, including on the first collar element.

Preferably, a first contact element is arranged centrally in the receptacle. Furthermore, the receptacle has a second contact element with a first and a second contact region, which lie opposite one another in each case on the inner side of the first collar element. If the energy store is inserted in the receptacle, the energy store contacts the first and the second contact element, whereby an electrical supply of the electronic unit is ensured.

A measure improving the invention provides that the housing and the cover are injection-molded parts made of plastic, wherein the housing has a higher strength than the cover. Advantageously, the material of the housing and the cover comprises glass fiber reinforced polyimides. In addition, the material of the housing and the cover glass fibers and / or carbon fibers and / or aramid fibers. In one possible embodiment of the invention, the lid is designed on the underside with latching means which engage in counter-latching means of the housing. During the fastening of the cover to the housing, among other things deform the locking means of the lid and snap into the counter-latching means, creating an exact fit of the lid on the housing. Since the locking means of the lid have a corresponding low strength, there is no risk that during assembly, for example, it comes to a breaking out of the locking means.

In order to achieve a reliable hold of the lid on the housing, advantageously a plurality of locking means are arranged on the underside of the lid. In this case, the cover has a front edge region, a side region and a rear edge region, wherein at least one latching means is formed on the front edge region and on the side region, which acts in a corresponding counter-latching means on the housing.

It is particularly advantageous that stop elements are formed on the underside of the lid on its underside projection-like, each extending into a separate opening of the housing. These stop elements are used inter alia that during assembly of the lid is initially feasible with its rear edge region at an angle to the housing, said stop elements protrude into the openings of the housing, wherein the lid is hinged to the stop elements about an axis, until the latching means of the lid cooperate with the counter-latching means of the housing, whereby a releasable positive and / or non-positive attachment of the lid on the housing can be achieved. When inserted, there is a small gap between the rear edge region of the lid and the housing. So that no loop of a thread passes during the placement of the electronic key, for example in a trouser pocket of the user, in said gap and further shifts below the lid, the stop elements are located directly on the housing.

It is particularly advantageous that an opening is provided below the rear edge region of the lid, in which an object for releasing the lid can be inserted. The article is advantageously the mechanical key which may be inserted in a compartment within the housing. To open the lid, the mechanical key is removed from its compartment and guided with its tip into said opening. Here is the tip of the mechanical key between the rear edge region of the lid and the housing. By a corresponding movement of the mechanical key, for example by a rotation or a lever movement, the rear edge region of the lid can be raised, whereby at the same time solve the locking means of the lid from the counter-locking means on the housing.

Appropriately, the opening for releasing the lid for receiving through the wall is closed. This prevents that the object is guided too far into the housing, whereby, for example, the interior, in particular the sealing element, could be damaged.

In a further advantageous embodiment of the invention, it is provided that the underside of the lid has at least one retaining element extending in the direction of the receptacle, which contacts the energy store in the closed state of the lid, whereby the energy store is held reliably in its position within the receptacle. In this case, there is the possibility that one or more holding elements are provided which depress the energy store a little during assembly of the lid. This prevents the energy storage device from losing contact with the electronics, which would be associated with malfunctioning of the electronic key.

Advantageously, the lid may be formed with a projection-like engaging element and a contact element spaced apart from the engaging element. In this case, in the inserted state of the cover, the engagement element acts on the first sealing region and the contacting element acts on the second sealing region. The engagement element penetrates into the first sealing region, which thereby deforms elastically. The contacting element causes an elastic deformation of the second sealing region, which is deformed in the direction of the first sealing region.

It can be particularly advantageous in this case that the cover has on its underside a projection-like locking element which extends into the receptacle and on a attached to the collar element counter-locking element is attached. Here, the Eingrelfelement creates a force acting on the locking element in the direction of the lid. This measure increases the holding force of the connection of the locking element with the counter-locking element and thus the cover to the housing. Thus, a heavy energy storage can be provided in the receiving area without the risk that the lid detaches from the housing. Another advantage is that the lid on the latching element and the counter-latching element is releasably securable to the housing. Of course, it is possible in a further embodiment of the invention, the lid over other positive and / or non-positive connections, in particular via at least one screw fastened to the housing. It is also conceivable that a bayonet closure is used, which secures the cover positively and releasably attached to the housing

In a further embodiment it can be provided that the latching element is integrated on the contacting element. By this measure, the locking element is reinforced, whereby larger forces can be absorbed by the locking means. The contacting element exerts a force on the second sealing region, which deforms in the direction of the first sealing region, the second sealing region reliably sealingly contacting the contacting region. Zusätlich is achieved by the force acting in the contact region between the second sealing region and the contacting element, a reinforced holding function of the lid on the housing.

The first and the second sealing region may be partially arranged on an end surface of the first collar element facing the underside of the lid, wherein the second sealing shell is lip-shaped.

It is conceivable in a further embodiment of the invention, the engaging element at its free end, which acts on the first Abdichtungsbereieh to round with a radius. Preferably, the radius is at least 0.05 mm. The rounded shape of the elliptical element has a material-friendly effect on the first sealing area to be contacted.

Furthermore, the contacting element can be designed as a bulge, whereby a reliable contacting of the second sealing region and the contacting element can be achieved,

Furthermore, it can be provided according to the invention that in the inserted state of the lid, the groove, which serves as a tolerance compensation, has a width of 0.1 mm to 1.0 mm, preferably a width of 0.2 to 0.5 mm. In the inserted state of the lid, the contact element exerts a force on the sealing element, as a result of which the second sealing area elastically deforms in the direction of the first sealing zone without the first and the second sealing area touching each other. Selbstverdändlich it is conceivable in a further embodiment of the invention that in the inserted state a contact of the second sealing region is present with the first sealing region.

Fig. 1

eine rein schematische Darstellung eines elektronischen Schlüssels, der in Datenkommunikation mit einer Schließvorrichtung eines Kraftfahrzeuges steht,

Fig. 2

ein Gehäuse des elektronischen Schlüssels in dreidimensionaler Draufsicht,

Fig. 3

eine Teilansicht auf den elektronischen Schlüssel,

Fig. 4

eine dreidimensionale Ansicht auf die Unterseite des Deckels des elektronischen Schlüssels,

Fig. 5

eine mögliche Schnittansicht des elektronischen Schlüssels, wobei der Deckel über Rastmittel an Gegenrastmitteln des Gehäuses befestigt ist,

Fig. 6

eine Seitenansicht des Gehäuses mit Deckel,

Fig. 7

eine vergrößerte Darstellung des hinteren Randbereiches des Deckels, der an dem Gehäuse angeordnet ist,

Fig. 8

eine Schnittansicht einer weiteren Ausführungsform eines elektronischen Schlüssels,

Fig. 9

eine vergrößerte Darstellung einer Schnittansicht des elektronischen Schlüssels gemäß Fig. 8 und

Fig. 10

eine Darstellung einer weiteren Schnittansicht des elektronischen Schlüssels gemäß Fig. 8.

In Figur 1 ist rein schematisch ein elektronischer Schlüssel 1 dargestellt, der mit einer Schließvorrichtung 40 eines Kraftfahrzeuges 41 in Datenkommunikation steht. Der elektronische Schlüssel 1 weist unter anderem eine Elektronikeinheit 21 auf, die mit einer Batterie als Energiespeicher versorgt wird. Diese in diesem Ausführungsbeispiel nicht dargestellte Batterie ist innerhalb einer Aufnahme im elektronischen Schlüssel 1 angeordnet.Further advantages, features and details of the invention will become apparent from the following description, in which two possible embodiments of the invention will be described in detail with reference to the drawings. Show it:

Fig. 1

a purely schematic representation of an electronic key, which is in data communication with a locking device of a motor vehicle,

Fig. 2

a housing of the electronic key in a three-dimensional plan view,

Fig. 3

a partial view on the electronic key,

Fig. 4

a three-dimensional view of the underside of the lid of the electronic key,

Fig. 5

a possible sectional view of the electronic key, wherein the lid is attached via latching means on counter-latching means of the housing,

Fig. 6

a side view of the housing with lid,

Fig. 7

an enlarged view of the rear edge region of the lid, which is arranged on the housing,

Fig. 8

a sectional view of another embodiment of an electronic key,

Fig. 9

an enlarged view of a sectional view of the electronic key according to Fig. 8 and

Fig. 10

a representation of another sectional view of the electronic key according to Fig. 8 ,

In FIG. 1 is purely schematically illustrated an electronic key 1, which communicates with a locking device 40 of a motor vehicle 41 in data communication. The electronic key 1 has inter alia an electronic unit 21, which is supplied with a battery as energy storage. This battery, not shown in this embodiment is disposed within a receptacle in the electronic key 1.

According to FIG. 2 the receptacle 22 is shown, into which the battery can be inserted into the housing 20. The receptacle 22 has at its edge region on a projection-like first collar member 24, which is designed with an inner side 24a and an outer side 24b. The collar element 24 has a continuous wall. In a further embodiment of the invention, it is of course possible that the wall of the first collar element 24 is interrupted at defined locations. Furthermore, the housing 20 has a wall 25 extending at a distance from the first collar element 24 and surrounding the first collar element 24. Between the first collar element 24 and the wall 25 there is a channel 26 which is open on one side and in which the sealing element 23 is located, which is shown in gray shades. In the illustrated embodiment of the invention, the sealing element 23 is attached directly to the outer side 24 b of the first collar element 24. Alternatively, the sealing element 23 may also be arranged at least partially on the collar element 24.

As in FIG. 2 can be clearly seen, a first contact element 28 is arranged centrally in the receptacle 22. Furthermore, a second contact element 29 is provided, which has a first 29a and a second contact region 29b which lie opposite one another on the inner side 24a of the first collar element 24. The first contact element 28 represents the negative contact and the second contact element 29 the positive contact. In the inserted state of the battery, which is inserted inside the inner side 24a of the collar element 29, the contact elements 28, 29 made of a flexible, metallic material are in contact with the battery. A portion of the first 28 and the second contact element 29 is located below the receptacle 22 and is in contact with the electronic unit, not shown. The first contact element 28 extends through a first opening 30, which is embodied in the receptacle 22, wherein second openings 31 are provided, through which the second contact element 29 extends and projects into the receptacle 22 with its contact regions 29a, 29b.

Adjacent to the first 29a and to the second contact region 29b, the receptacle 22 has fixing elements 27b which project through a respective second opening 31. Here, the said fixing elements 27b are located on the inner side 24a of the first collar element 24 and serve to reliably hold the battery inserted in the receptacle 22 in its position. For this purpose, the fixing elements 27b are hook-shaped at their free end. Each of the first and second contact regions 29a, 29b is assigned a fixing element 27b, and of course it is conceivable to provide further fixing elements 27b on the inner side 24a of the first collar element 24. In a further alternative, the fixing elements 27b may be made in one piece with the collar element 24.

The sealing element 23 is according to the invention attached to the receptacle 22 inextricably. In this embodiment of the invention, the sealing element 23 is preassembled, integrally arranged on the housing 20, so that during the assembly process, the sealing element 23, for example, can not get lost. In the illustrated embodiment of the invention, the housing 20 with the sealing element 23 is a 2K injection molded part. In a further alternative, the sealing element 23 may be secured to the housing 20 by a thermal process, for example by laser welding.

In order for the inserted in the receptacle 22 battery is reliably sealed, a lid 10 is attached to the housing 20. In the present embodiment of the electronic key 1, said attachment via locking means 13 and counter-locking means 27 a.

As FIG. 4 clearly shows, the cover 10 on its underside 11 locking means 13 which in counter-locking means 27a of the housing 20, the in FIG. 2 to recognize, grab. The lid 10 has a front edge portion 10a, a side portion 10b and a Rear edge portion 10c, wherein at the front edge portion 10a, two locking means 13 and the side portion 10b each have a locking means 13 are formed. These latching means 13 engage in the inserted state of the lid 10 in the counter-latching means 27a of the housing 20, whereby a reliable fit of the lid 10 is ensured on the housing 20.

In addition, the lid 10 is executed on its underside 11 with a projection-like second collar member 12 which between the wall 25 and the sealing element 23 (s. FIG. 2 ) extends and at the same time rests on the sealing element 23. In the inserted state of the lid 10, this exerts a certain contact pressure on the sealing element 23.

As FIG. 6 clarifies, the fixing elements 27b and the sealing element 23 at least partially protrude from the receptacle 22. The lid 10 is further formed at its rear edge portion 10c on its underside 11 with projection-like stopper members 14 (see FIG. 4 ), each in an opening 32 of the housing 20, which in FIG. 2 are shown extending. During assembly, the cover 10 is first guided with the rear edge region 10c at an angle β to the housing 20, the stop elements 14 projecting into the openings 32. Subsequently, the lid 10 is hingedly pivoted on the stop member 14 about an axis 33 until the locking means 13 cooperate with the counter-locking means 27 a, whereby a reliable clip connection of the lid 10 on the housing 20 can be achieved.

FIG. 7 shows in enlarged form the electronic key 1 at the rear edge portion 10c of the lid 10 with its stop members 14, which are respectively in the opening 32, wherein the stop members 14 contact the housing 20 and the lid 10 are pivoted about the axis 33 in the counterclockwise direction can until the lid 10 is reliably held with its locking means 13 on the housing 20.

FIG. 3 shows a view of the electronic key 1, in which the rear edge portion 10c of the lid 10 is shown and engages with its locking means 13 in the counter-locking means 27a. The housing 20 is designed with a compartment 34 into which a mechanical key can be inserted. Below the rear edge region 10c of Cover 10 is an opening 35, which is designed in the present embodiment as an elongated slot, provided, in which an object, such as the mechanical key, can be introduced to release the lid 10. Here, the mechanical key is guided with a tip in the opening 35. By a slight rotation of the mechanical key or by a lever movement, the locking means 13 can be released from the counter-locking means 27 a, whereby the cover 10 can be removed from the housing 20. Thus, when entering the mechanical key into the opening 35 does not cause any damage within the electronic key 1, the opening 35 is closed to the receptacle 22 through the wall 25, which in FIG. 2 is particularly clear. The area of the housing 20 at the opening 35 is step-shaped in the present embodiment. In the assembled state of the lid 10 on the housing 20, the opening 35 has a depth to the wall 25 which is less than 4mm, preferably less than 2mm and more preferably less than 1mm, the opening 35 a distance from the housing 20 to Cover 10 which is less than 4mm, preferably less than 2mm and more preferably less than 1 mm.

In an alternative, not shown, of the invention, when inserted inside the compartment 34, the mechanical key covers the edge region of the housing 20, on which the opening 35 is formed. This means that the opening 35, the compartment 34 and the latching means 13 and counter-latching means 27a are concealed by the key located in the compartment 34.

In FIG. 5 an embodiment of the invention is shown in which the locking means 13 are formed bead-shaped at its free end, wherein the respective counter-locking means 27a is designed as a cavity. In the assembled state, the free end of the locking means 13 engages behind the cavity 27 a of the housing 20th

In the illustrated embodiment of the invention, the housing 20 and the cover 10 injection molded plastic parts, wherein the plastic is glass fiber reinforced. The sealing element is made of a thermoplastic elastomer.

Fig. 8 shows a further embodiment of the electronic key 1, wherein an energy storage 70 within the receptacle 22 which is closed by the cover 10, is arranged. The structure of the electronic key 1 substantially corresponds to the embodiment according to the Fig. 1 to 7 , In order to avoid repetition, only the essential differences are discussed below:

As Fig. 8 clearly shows, the cover 10 has a plurality of holding elements 50 which are arranged on the underside 11 of the lid 10. The holding elements 50 extend in the direction of the energy store 70. The free ends of the holding elements 50 in this case contact the energy store 70, as a result of which the energy store 70 is reliably held in its position within the receptacle 22. The energy store 70 contacts the first contact element 28 on the side facing away from the holding elements 50. The second contact elements according to the first exemplary embodiment are not explicitly illustrated. In contrast to the first exemplary embodiment, the sealing element 23, which is arranged on the first collar element 24, has a first 61 and a second sealing region 62. These sealing areas 61, 62 are shown enlarged in FIG FIGS. 9 and 10 shown. Between the first 61 and the second sealing portion 62 extends an open on one side to the lid 10 groove 63 which separates the first 61 and the second sealing portion 62. The first sealing portion 61 serves for axial sealing. A nearly radial seal can be made via the second sealing region 62. How very clear in the FIGS. 9 and 10 can be seen, the lid 10 is formed on its underside 11 with a projection-like engaging element 12a and a contact element 12b spaced from the engagement element 12a. In the inserted state of the cover 10, the engagement element 12a acts on the first sealing region 61 and the contacting element 12b on the second sealing region 62.

The cover 10 has on its underside 11 at least one projection-like locking element 12c, which is positively held on a counter-latching element 24c, which is arranged on the first collar element 24, positively held. The first 61 and the second sealing region 62 are elastically deformed at least partially by the engagement element 12a and the contacting element 12b. The Engaging element 12a penetrates according to FIGS. 9 and 10 almost completely into the first sealing area 61. The contacting element 12b deforms the second sealing region 62 in the direction of the first sealing region 61, wherein the width of the groove 63 is reduced in this case. In the non-inserted state of the lid 10, the lip-like second sealing region 62 is almost perpendicular to the end face 24d of the first collar element 24th

According to the embodiment of Fig. 8 the first 61 and the second sealing region 62 and the engaging element 12a and the contacting element 12b of the cover 10 extend peripherally without interruption to the receptacle 22. In Fig. 8 and Fig. 10 Furthermore, a positioning element 64 is arranged on the inner side 24a of the first collar element 24, on which the energy store 70 is reliably held in its horizontal position within the receptacle 22. The positioning element 64 is also made of the same material as the sealing element 23. Preferably, the positioning element 64 is molded onto the first collar element 24. The energy store 70 may be a commercially available battery, for example in the form of a coin cell, or a rechargeable battery. An increased, "double seal" of the electronic key 1 is achieved via the first and the second sealing region 61, 62. The second sealing region 62 as well as the contacting element 12b resting thereon further cause the cover 10 to receive an increased holding force. Also, the engaging element 12 a, which acts on the first sealing portion 61, creates a force which acts on the latching element 12 c in the direction of the cover 10. Thus, an increased positive clamping of the locking element 12c is achieved on the counter-latching element 24c. Due to the groove 63, which is located between the first 61 and the second sealing portion 62, greater freedom in terms of tolerances are possible, which can reduce production costs.

LIST OF REFERENCE NUMBERS

1

electronic key

10

cover

10a

front edge area

10b

page range

10c

rear edge area

11

bottom

12

second collar element

12a

engaging

12b

contacting

12c

locking element

13

latching means

14

stop element

20

casing

21

electronics unit

22

admission

23

sealing element

24

first collar element

24a

inside

24b

outside

24c

Counter-locking element

24d

face

25

wall

26

channel

27a

Securing means

27b

fixing element

28

first contact element

29

second contact element

29a

first contact area (of the second contact element)

29b

second contact region (of the second contact element)

30

first opening

31

second opening

32

opening

33

axis

34

subject

35

opening

40

closing device

41

motor vehicle

50

retaining element

61

first sealing area

62

second sealing area

63

groove

64

positioner

70

Energy storage (button cell)

Claims (22)

1. Electronically key (1), particularly for a locking device (40) of a vehicle (41), with a housing (20) consisting of plastic, within which an electronically unit (21) for data communication is assembled with a locking device (40),
   an acceptance is (22) established at the housing (20), comprising conducting contact elements (28, 29) and in which an energy storage (70) can be assembled, and
   a cap (10) sealing the acceptance (22), is loosely fastened at the housing (20), wherein a sealing element (23) is permanently assembled at the acceptance (22) enclosing the contact elements (28, 29), and the bottom side (11) of the cap (10) is resting against the sealing element (23), whereby the reliably sealed acceptance (22) is build, substantially limited through a cap (10) and the housing (20)
   characterized in that,
   the sealing element (23) comprises a first (61) and a second sealing area (62) wherein the sealing element (23) comprises an unilaterally open groove (63) in the direction of the cap (10), which is separating the first (61) and the second sealing area (62).
2. Electronically key (1) according to claim 1,
   characterized in that,
   the acceptance (22) is comprising a projecting first flange element (24) with an inner (42a) and an outer surface (24b) at the periphery, wherein particularly the housing (20) comprises a wall (25) deflecting in a distance to the first flange element (24), enclosing the first flange element (24), wherein an unidirectional open pipe (26) is established at the housing (20) between the first flange element (24) and the wall (25), in which the sealing element (23) is arranged, connected to the outer surface (24b) of the first flange element (24), wherein particularly the bottom side of the cap (10) comprises a projecting second flange element (12), extending between the wall (25) and the sealing element (23) and resting against the sealing element (23).
3. Electronically key (1) according to one of the preceding claims,
   characterized in that,
   the fist contact element (28) is assembled in the middle of the acceptance (22) and a second contact element (29) comprises a first (29a) and a second contact area (29b), which are assembled each at opposing sides of the inner surface (24a) of the first flange element (24), wherein particularly the acceptance (22) comprises a first opening (30), through which the first contact element (28) is at least partially extending and a second opening (31), whereby the first and the second contact area (29a, 29b) of the second contact element (29) are each extending through the second opening (31).
4. Electronically key (1) according to one of the preceding claims,
   characterized in that,
   the sealing element (23) is pre-assembled at the housing (20) in one piece, wherein a pressing force is affecting the sealing element (23).
5. Electronically key (1) according to one of the preceding claims,
   characterized in that,
   the housing (20) and the cap (10) are casting elements made of plastic, wherein the housing (20) comprises a higher stability than the cap (10).
6. Electronically key (1) according to one of the preceding claims,
   characterized in that,
   the housing (20) forms a 2-component-casting element with the sealing element (23).
7. Electronically key (1) according to one of the claims 1 to 6,
   characterized in that,
   the sealing element (23) is welded at the housing (20).
8. Electronically key (1) according to one of the preceding claims,
   characterized in that,
   the cap (10) comprises clips elements (13) at its bottom side (11) which are engaging with counter-clips elements (27a) of the housing (20).
9. Electronically key (1) according to one of the preceding claims,
   characterized in that,
   the acceptance (22) comprises fixation elements (27b) for the insertion of an energy storage (70), which are assembled at the inner surface (24a) of the first flange element (24), wherein particularly a fixation element (27b) is assigned at each the first and the second contact area (29a, 29b), which is extending through the second opening (31), wherein particularly the fixation element (27b) is forming a one-piece component with the first flange element (24).
10. Electronically key (1) according to one of the preceding claims,
    characterized in that,
    the cap (10) comprises a boundary area upfront (10a), a side band (10b) and a rear boundary area (10c), wherein at the boundary area upfront (10a) and at the side band (10b) at least one clips element (13) is assembled, which is affecting an according counter clips element (27a) at the housing (20), wherein particularly the free end of the clips element (13) is toric and the counter clips element (27a) is implemented as a cavity (27a), wherein the free end of the clips element (13) is engaging with the cavity (27a), wherein particularly at the rear boundary area (10c) at the bottom side (11) of the cap (10) projecting catch elements (14) are formed, which are extending in an opening (32) of the housing (20).
11. Electronically key (1) according to one of the preceding claims,
    characterized in that,
    an opening (35) is arranged below the rear boundary area (10c) of the cap (10), in which a device for releasing the cap (10) is insertable, wherein particularly the opening (35) is closed through a wall (25) in direction of the acceptance (22), wherein particularly the opening (35) comprises a depth in direction of the wall (25), which is smaller than 4 mm, preferably smaller than 2 mm and most preferably smaller than 1 mm, wherein the opening (35) comprises a separating distance from the housing (20) to the cap (10) which is smaller than 4 mm, preferably smaller than 2 mm, and most preferably smaller than 1 mm.
12. Electronically key (1) according to one of the preceding claims,
    characterized in that,

    (1) during the assembly the cap (10) is firstly conductible with its rear boundary area (10c) comprising an angle (β) towards the housing (20), wherein the catch elements (14) project into the openings (32), (2) the cap (10) is pivotable about an axis (33) at the catch element (14) like a hinge, until the catch element (13) is interacting with the counter catch element (27a), wherein a removable fixation of the cap (10) at the housing (20) is achievable by form and/or force closure.
13. Electronically key (1) according to one of the preceding claims,
    characterized in that,
    the sealing element (23) is assembled at the flange element (24) facing the bottom side (11) of the cap (10).
14. Electronically key (1) according to one of the preceding claims,
    characterized in that,
    the cap (10) comprises at least one arresting element (50) at the bottom side (11), which is protruding in the direction of the acceptance (22) and contacting the energy storage (70), wherein the energy storage (70) is reliably retaining in its position.
15. Electronically key (1) according to one of the preceding claims,
    characterized in that,
    the cap (10) comprises a projecting interfering element (12a) and a contacting element (12b) which is spaced towards the interfering element (12a), wherein the interfering element (12a) is affecting a first sealing area (61) and the contacting element (12b) is affecting a second sealing area (62).
16. Electronically key (1) according to one of the preceding claims,
    characterized in that,
    that the cap (10) comprises a protruding clips element (12c) at its bottom side (11), which is extending in the acceptance (22) and which is mounted at the counter clips element (24c) formed at the first flange element (24), wherein the interfering element (12a) is developing a force, which is affecting the clips element (12c) in the direction of the cap (10), wherein particularly the clips element (12c) is integrated at the contacting element (12b).
17. Electronically key (1) according to one of the preceding claims,
    characterized in that,
    at the first sealing area (61) a axial sealing and at the second sealing area (62) an almost radial sealing occurs.
18. Electronically key (1) according to one of the preceding claims,
    characterized in that,
    the first (61) and the second sealing area (62) are assembled at the flange face (24d) of the first flange element (24) facing at least partially the bottom side (11) of the cap (10), wherein the second sealing area (62) is lip-shaped.
19. Electronically key (1) according to one of the preceding claims,
    characterized in that,
    the interfering element (12a) is rounded with a radius at its free end which is affecting the first sealing area (61), whereby particularly the radius is at least 0,05 mm.
20. Electronically key (1) according to one of the preceding claims,
    characterized in that,
    the contacting element (12b) is formed as a protrusion.
21. Electronically key (1) according to one of the preceding claims,
    characterized in that,
    in the applied condition of the cap (10) the groove (63) comprises a width a of 0,1 mm ≤ a ≤ 1 mm, preferably a width a of 0,2 mm ≤ a ≤ 0,5 mm, whereby in the applied condition of the cap (10) the contacting element (12b) is performing a force towards the sealing element (23) and the second sealing area (62) is elastically deformed in the direction of the first sealing are (61) without a contact between the first (61) and the second sealing area (62).
22. Electronically key (1) according to one of the preceding claims,
    characterized in that,
    a positioning element (64) is intended to be arranged at the inner surface (24a) of the first flange element (24), wherein the energy storage (70) is maintained in a defined space toward the cap (10) within the acceptance (22)

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