DE102021116157A1 - DEVICE, PARTICULARLY CHARGING STATION - Google Patents

Abstract

A device (1), in particular a charging station, for charging and/or discharging an energy store of an electric vehicle with electrical energy is proposed, which has a first housing part (4), a second housing part (5), a reversible fastening means (45) that first and second housing parts (4, 5) detachably connected to one another, and having a seal (21) which covers the reversible connecting means (45) and has a number of predetermined breaking points (35) which are designed to, when the seal ( 21) to break.

Description

TECHNICAL AREA

The invention relates to a device, in particular a charging station for charging and/or discharging an energy store of an electric vehicle with electrical energy.

STATE OF THE ART

Calibration is a statutory test of a measuring device for compliance with the underlying calibration regulations. Corresponding measuring devices must be regularly protected against access by unauthorized persons. This in particular to rule out manipulation of the measuring devices. For example, an electricity meter could otherwise be manipulated, which would lead to incorrect electricity billing. Even modern charging stations for charging or discharging an energy store of an electric vehicle are calibrated. A corresponding electricity meter inside the charging station must be protected against manipulation.

It is well known to provide containers or housings with a seal. By attaching the seal, in particular to a closure of the container or device, it can be determined later whether the container or device was opened without authorisation. Metal seals or so-called warranty seals, for example, are suitable as seals. Metal seals are usually small lead discs with one or two holes through which a sealing wire is fed. The seal is then pressed together with sealing pliers. This requires a lot of effort. Typically, this can only be done by male hands. This results in a high installation effort. Warranty Seals comprise a frangible layer and are adhered to the area to be sealed using adhesive. However, with feeling and luck, warranty seals can be removed and reapplied. In particular, these can be ordered on the Internet and reapplied as originals. In this respect, warranty seals offer a rather low protection against manipulation.

Although explained here on the basis of calibrated devices, the problem of effective protection against tampering with the help of a seal also exists with other devices, for example with service machines such as vending or bank machines. Access to components inside such machines must also be restricted here or be easy to discover.

DISCLOSURE OF THE INVENTION

It is an object of the present invention to provide an improved device, in particular a charging station, with a seal.

The task is solved by a device with the features of claim 1.

Accordingly, a device, in particular a charging station, is provided for charging and/or discharging an energy store of an electric vehicle with electrical energy. The device comprises a first and a second housing part. A reversible connecting means detachably connects the first and second housing parts to one another. The device also includes a seal which covers the reversible connection means and has a number of predetermined breaking points. The frangible points are designed to break when the seal is removed.

A component which is to be protected against manipulation is preferably located in a volume defined between the first and second housing part. The reversible connecting means holds the first and second housing part together so that it must first be released in order to separate the first and second housing part from one another, which allows access to the component to be protected. The seal covers the reversible connection means and thus prevents access to this. The seal is firmly fixed in this arrangement covering the reversible connection means. If an attempt is made to remove the seal, it breaks at one of its predetermined breaking points. The reason for this is that removing the seal requires mechanical action on the seal, for example using a screwdriver. The seal is advantageously designed in such a way that a force to remove the seal generates a bending moment in the area of at least one of the predetermined breaking points (e.g. depending on the starting point of a corresponding screwdriver on the seal), so that the predetermined breaking point then breaks. A tampering attempt can be easily detected from the broken seal.

The seal is preferably arranged in such a way that a mechanical action on it is only possible at those points at which a bending moment is also generated at one or more of the predetermined breaking points at the same time.

The number of predetermined breaking points can be one, two, three or more.

A reversible connection means means a connection means which destroys can be solved without problems. This means that the first and second housings can be reconnected by means of the same reversible connection means after having previously disconnected them.

In the present case, a seal is a device which serves to protect a protected component from manipulation and on which access or attempted access to the protected component can be externally identified.

A weakened component area of the seal that is designed to be broken in the event of an attempt to access the protected component is a weakened component area. This fracture is irreversible and readily visible to the naked eye.

In the present case, a housing part is any component which is set up to form an at least partially or completely closed volume with another component, in which volume the protected component is arranged. In particular, the first and second housing parts can be set up to prevent manual access to the protected component when they are connected to one another.

The reversible connecting means can connect the first and second housings directly or indirectly to one another. In the case of a direct connection, the connecting means engages directly on the first and second housing part, in particular with a form fit and/or friction fit. In the case of an indirect connection, the connecting means connects a first component connected to the first housing part and a second component connected to the second housing part. Furthermore, this also includes the variants in which the connecting means acts directly on the first component connected to the first housing part and on the second housing part, as well as the reverse case, in which the connecting means acts on the second component connected to the second housing part and on the first housing part attacks directly.

The connecting means is set up to connect the first and second housing parts to one another, in particular in a positive and/or frictional manner. In the present case, a positive connection is to be understood as meaning a connection in which the connecting means engage behind the connection partners. In the case of a frictional connection, the connection between the two connection partners is produced in that a frictional force is generated between the connection means and the respective connection partner, which friction force prevents the connection partners from becoming detached from one another. The frictional force is the result of an acting normal force.

In the present case, an electric vehicle is to be understood as meaning any vehicle which is driven with the aid of electrical energy (even only as an aid). In particular, the electric vehicle can be a fully electric vehicle (so-called battery electric vehicle—BEV for short) or a hybrid vehicle. In the present case, an electric vehicle basically includes: a motor vehicle, a truck, a two-wheeler and/or three-wheeler.

In the present case, a charging station is to be understood as meaning any device which is set up to charge or discharge the energy store of the electric vehicle with electrical energy by means of a cable or wirelessly. The charging station can be stationary. In particular, it can be attached to or built into a part of a building.

According to one embodiment, the seal is attached to the first and/or second housing part by means of an attachment means.

The attachment to the first and/or second housing part ensures that the seal is firmly fixed in its arrangement covering the reversible connection means and thus protects it against access from the outside. The seal can be attached directly or indirectly to the first and/or second housing part. The above statements on the connection means apply here accordingly.

According to a further embodiment, the fastening means has a number of latching lugs.

The number of locking lugs can be >1. Two latching lugs are preferably provided. In the present case, a detent is to be understood as an element which is initially elastically deflected in order then to engage behind the first and/or second housing part.

According to a further embodiment, the seal has a receiving area for receiving one end of the reversible mediating means.

Advantageously, the end of the reversible connection means in the receiving area is well protected against access from the outside and thus forces people who want to manipulate the protected component to first break the seal in order to get to the end of the reversible connection means. The end of the reversible connection means is preferably the area that has to be gripped manually or with a tool in order to reversibly loosen the connection means. In particular, the end can be a screw head.

According to a further embodiment, the seal has a number of self-supporting areas which are each connected to the receiving area by means of one of the number of predetermined breaking points.

The number of unsupported areas and/or the number of predetermined breaking points is preferably ≥ 1, in particular 2.

The self-supporting areas form a barrier which unauthorized persons must first overcome in order to reach the receiving area of the seal. When attempting to overcome the unsupported areas, at least one of the predetermined breaking points breaks, so that manipulation can be proven.

According to a further embodiment, at least one of the number of cantilevered areas is in the form of a wing or a partial area thereof.

Preferably, only the tip of the wing is mechanically accessible from the outside. The base of the wing or section preferably connects to one of the predetermined breaking points. If the wing is then bent upwards at its free end (tip), the predetermined breaking point breaks. A bending moment is advantageously generated at the predetermined breaking point by means of the wing or unsupported area.

According to a further embodiment, the first and/or second housing part define a corner region, at least one of the first and second housing parts having a triangular recess in the corner region, the seal having a triangular shape and being arranged in the recess.

As a result, mechanical access from the outside to the seal for manipulation can advantageously be severely restricted. In particular, the unauthorized person is thus forced to grip one of the wing tips, so that a breakage inevitably occurs at the corresponding predetermined breaking point.

According to a further embodiment, the triangular shape of the seal has a hypotenuse which is directed towards and/or covered by an outer border of the first or second housing part.

In the area of the hypotenuse, there is preferably a raised border of the first or second housing part, which restricts access to the seal in the area of the hypotenuse to the effect that only the wing tips can be accessed.

According to a further embodiment, a respective corner area of the seal formed between the hypotenuse and a respective cathetus has one of the wings.

The aforementioned raised border in front of the hypotenuse is preferably lowered and/or recessed in the area of the respective wing tip, so that the seal can be accessed mechanically there, for example by means of a screwdriver. However, this then leads to the corresponding wing breaking at the predetermined breaking point.

According to a further embodiment, the seal has counterfeit protection and/or a calibration mark.

In the present case, counterfeit protection is to be understood as meaning a feature of the seal which can only be produced with great effort and which uniquely identifies a corresponding seal. For example, the counterfeit protection can be an RFID chip integrated into the sealing material. A calibration mark is to be understood as a mark issued by a government agency. For example, this can be a unique sequence of numbers and/or letters. Since unauthorized access does not know the plagiarism protection or the calibration mark, for example because this is attached to the sealing material or to its underside that is not visible from the outside, he has no possibility of replacing the seal at short notice.

According to a further embodiment, the seal is made of plastic, metal and/or glass.

According to a further embodiment, the seal is manufactured as a one-piece plastic injection molded component.

It is advantageous here that a corresponding plastic injection molding tool can only be produced at great expense for a correspondingly shaped seal. In this respect, high hurdles are set up for unauthorized access.

According to a further embodiment, the reversible connecting means has a screw and/or a snap hook.

For example, the head of the screw can engage behind the first or second housing part and its thread can be firmly screwed into the other of the first and second housing parts (connected state of the first and second housing part). Furthermore, on the first and / or second housing part, a snap hook, in particular be integrally formed, which engages positively in the other of the first and second housing part. The snap hook is designed to be elastic and is first deflected and then snaps behind the corresponding first or second housing part or behind a section of the same.

According to a further embodiment, the first and second housing parts define between them a sealed volume in which a number of electronic components are housed, the seal being located entirely outside the sealed volume.

As a result, the seal protects all components arranged within the sealed volume. Instead of the electronic components mentioned, any other component to be protected could also be provided there, for example a purely mechanical counter.

According to a further embodiment, the device is designed as a manual control device and/or service machine.

For example, a portable controller is a handheld terminal in the present sense. A service machine is to be understood as meaning such machines by means of which a customer can obtain services. Examples of a service machine are vending and bank machines.

Further possible implementations of the invention also include combinations of features or embodiments described above or below with regard to the exemplary embodiments that are not explicitly mentioned. The person skilled in the art will also add individual aspects as improvements or additions to the respective basic form of the invention.

• 1 zeigt eine perspektivische Ansicht einer Ausführungsform einer Ladestation;
• 2 zeigt die Ladestation aus 1 ebenfalls perspektivisch, aber gedreht und mit abgenommener Haube;
• 3 zeigt perspektivisch eine Gehäusevorderseite aus 2;
• 4 zeigt perspektivisch eine Gehäuserückseite aus 2;
• 5 zeigt eine Detailansicht V aus 2;
• 6 zeigt die Ansicht aus 5, jedoch bei nicht gezeigter Gehäusevorderseite;
• 7 zeigt einen Schnitt VII-VII aus 2;
• 8 zeigt einen Schnitt VIII-VIII aus 2;
• 9 zeigt perspektivisch das Siegel aus den 2 und 5 bis 8;
• 10 zeigt eine Draufsicht aus 9; und
• 11 zeigt eine Ansicht XI aus 9.

Further advantageous refinements and aspects of the invention are the subject matter of the dependent claims and of the exemplary embodiments of the invention described below. The invention is explained in more detail below on the basis of preferred embodiments with reference to the enclosed figures.

• 1 Figure 12 shows a perspective view of an embodiment of a charging station;
• 2 indicates the charging station 1 also in perspective, but rotated and with the hood removed;
• 3 shows the front of the case in perspective 2 ;
• 4 shows the back of the case in perspective 2 ;
• 5 shows a detail view V from 2 ;
• 6 shows the view 5 , but with the housing front not shown;
• 7 shows a section VII-VII 2 ;
• 8th shows a section VIII-VIII 2 ;
• 9 shows in perspective the seal from the 2 and 5 until 8th ;
• 10 shows a plan view 9 ; and
• 11 shows a view XI 9 .

Elements that are the same or have the same function have been provided with the same reference symbols in the figures, unless otherwise stated.

1 shows a perspective view of a device 1 according to an embodiment. The device 1 is designed here, for example, in the form of a charging station for charging and/or discharging an energy store, in particular a rechargeable battery, of an electric vehicle. The electric vehicle can be a fully electric vehicle or a hybrid vehicle, for example.

However, the device 1 could just as well be a manual control device or a service machine, such as a bank or vending machine.

The hereinafter referred to as 1 charging station 1 has an in 2 shown, in particular waterproof housing 2. 2 shows the device 1 from 1 in a rotated state and without an in 1 shown fairing hood 3. The fairing have 3 can also be referred to as a design hood and sometimes serves the purpose of rounding off the design of the charging station 1. Furthermore, the covering hood 3 protects the housing 2 of the charging station 1 against direct water jets and against solar radiation.

How now further in 2 to recognize, the housing 2 comprises a first housing part 4 and a second housing part 5. The first housing part 4 is in perspective and isolated in 4 shown. The first housing part 4 is a housing rear or housing bottom part. This can be mounted on a wall or pillar, for example. The second housing part 5 sits on the front side of the housing rear side 4, which is also referred to here as the housing front side or housing top part.

The first and second housing parts 4, 5 together define an in 4 indicated interior 6. This is present as a called closed volume. A large number of electrical and/or electronic components are provided in the interior 6 . For reasons of clarity, these components are not shown in the figures, with the exception of a component 7 to be protected against manipulation. This is indicated purely schematically.

The component 7 to be protected from manipulation can be an electricity meter or another device that is calibrated and protected against unauthorized access.

returning to 1 it is shown there that the charging station 1 has a connection socket 8 which is electrically connected to at least one of the aforementioned components on its front side. The connection socket 8 is set up to be connected to a charging plug (not shown) of the electric vehicle. Furthermore, the charging station 1 can have a cable holder 9 (see 1 ) exhibit.

2 shows a corner area 10 of a total of four unspecified corner areas of the housing 2. In the corner areas 10, the first and second housing parts 4, 5 are screwed together. For this purpose, for example, the rear of the housing 4, as shown in 4 shown, in each corner area 10 has a base 11 . As shown by way of example, the base 11 can have a triangular shape. The base 11 has a hole 12 on the end face. Furthermore shows 4 a closed circumferential seal 13. The seal 13 defines a parting plane between the housing rear 4 and the housing front 5 (see 3 and 4 ). The seal 13 runs on top of the base 11 at its edge 14, which points to the interior 6. Correspondingly, the hole 12 is outside of the watertight, closed interior space 6. The closed interior space 6 is formed in that the seal 13 is attached to a corresponding sealing surface of the housing front side 5 ( 3 ) sealingly. The sealing surface is in 3 not to be seen.

Next is the front of the housing 5, as in the 2 and 3 shown, in at least the corner area 10 (see 2 ), but possibly also in other corner areas, provided with a recess 15. The return 15 is in 5 shown enlarged, showing a detail view V from 2 shows. The recess 15 is triangular (corresponding to the base 11). "Triangular" here refers to a viewing direction from the front of the charging station 1.

The recess 15 is defined by side walls 16 and a base 17 . The side walls 16 are perpendicular to the base 17 and are in particular formed in one piece with this. The side walls 16 can be connected to one another via a rounded area 18 . The side walls 16 are also perpendicular to each other. On the outer edge 19 of the base 17 extends a raised border 20. Between the raised border 20 and the recess 15 a seal 21 is arranged. The seal 21 has a triangular shape, shown in 6 can be seen. 6 shows the view 5 , the housing front 5 not being shown in order to reveal the seal 21 and the area underneath.

Referring to the 9 until 11 the structure of the seal 21 is explained in more detail below. Here shows 9 a perspective view of the seal 21, 10 a top view and 11 a view XI from 9 .

The seal 21 is preferably made in the form of a plastic injection molded component. However, it is also conceivable to produce the seal 21 using other methods and materials. In particular, the seal 21 can also be made of glass or metal or mixtures thereof, including plastic.

The seal 21 includes a central receiving area 22. The receiving area 22 has a pocket 23 on its underside, as in FIG 11 to see on. The pocket 23 can be rectangular with a rounded side 24 . The rounded side 24 borders on a corner area 25 of the triangular shape of the seal 21, which forms a right angle. At the other two corner areas 26 and 27, the triangular shape has two acute angles. The corner areas 26 and 27 are connected via a hypotenuse 28 (see 10 ) and these are each connected to the corner area 25 via catheti 29, 30. The corner areas 25, 26, 27 can be flattened (see the corner areas 26, 27) or rounded (see the corner area 25). Of course, deviations from an exactly rectangular shape are also possible.

Wings 31 , 32 connect to the receiving area 22 on both sides. The respective wing tips correspond to the corner portions 26, 27. The wings 31, 32 have a cantilevered portion 33 and a supported portion 34, respectively. The unsupported area 33 is connected to the supported area 34 via a predetermined breaking point 35 . The predetermined breaking points 35 are in particular in 10 recognizable, but only indicated there by dashed lines because it is located on the underside of the seal 21 . The predetermined breaking points 35 completely separate the unsupported areas 33 from the supported areas 34.

The supported area 34 adjoins the receiving area 22 . In order to stabilize the supported areas 34 , bases 36 molded onto the receiving area 22 are provided on both sides. Each of the bases 36 can be composed of several webs. Each of the bases 36 carries a downwardly pointing detent 37. Each of the detents 37 comprises an elongate section 38 which is fastened to the base 36 on one side and carries a hook 39 at its other end projecting downwards from the base 36. The elongate section 38 ensures elasticity, so that the respective hook 39 can deviate in the main plane of extent of the seal 21 . For reasons of stability, the bases 36 can be connected to one another via a web 40 . A groove 41 is provided between the receiving area 22 and the wings 31 , 32 or in the area in which a respective supported area 34 adjoins the receiving area 22 . The grooves 41 form as in the plan view 10 to recognize an incision on both sides of the corner area 25, the incisions pointing towards the hypotenuse 28.

The pocket 23 and the latching lugs 37 have already been assigned to the underside of the seal 21 above. The underside here means that side which faces the top side 5 of the housing when the seal 21 is installed. The top is the example in the 5 , 6 , 9 and 10 visible side of the seal 21. This is designed to be essentially smooth, with the smooth surface being formed by the receiving area 22 and the wings 33, 32 adjoining it. Advantageously, the smooth surface does not offer a starting point for a screwdriver 54 (see 7 ) or any other means of breaking the seal 21.

All or just a number of the areas and sections of the seal 21 described above are formed in one piece with one another.

The seal 21 can bear a calibration number 42, as in 6 shown. The calibration number 42 or other unique identification could also be on the underside of the seal 21, in particular on the bottom 43 (see 11 ) of the pocket 23 may be provided. Furthermore, other unique identification features (protection against counterfeiting) could also be integrated on the seal 21 or in its material. This prevents the seal 21 from being easily exchanged for a new seal after unauthorized access.

Now returning to 5 and 6 as well as with reference to the 7 and 8th , which have a section VII-VII or VIII-VIII 2 show, the installation of the seal 21 and its manipulation protection effect is explained in more detail.

In a first step, the housing upper part 5 (see 3 ) on the lower part of the housing 4 (see 4 ) set. The seal 13 (see Fig 4 , 6 and 7 ) engages in a groove 44 in the upper housing part 5 in a sealing manner.

Then a screw 45 (see 8th ) through a hole 46 in the base 17 (see 5 , 6 and 8th ) and inserted in the hole 12 (see 4 , 6 and 8th ) screwed into the base 11 by means of its thread. The hole 12 can be formed in the base 11 in a dome 47 as in FIG 8th shown. In this state, the screw 45 engages the base 17 with its screw head 48. At the same time, the thread of the screw 45 engages in the wall of the hole 12 and forms a positive and frictional connection there. Correspondingly, the housing parts 4, 5 are firmly fastened to one another by means of the screw 45. In order to detach the housing parts 4, 5 from one another again, the screw 45 is unscrewed. The screw 45 is therefore a reversible fastening means. Instead of the screw 45, snap hooks or the like could also be used. For example, such snap hooks could be attached to the base 17 pointing downwards. The snap hooks would then snap elastically into corresponding notches in the lower housing part, in particular in the base 11 . To release the connection between the housing parts 4, 5, the latching hooks must be deflected and thus moved out of their latched position.

In order to manipulate the component 7 in such a way that this is not noticeable, third parties must therefore loosen the screw 45. To do this, use a screwdriver 54 (see 7 ) on the head of screw 48. The seal 21 prevents this. The seal 21 is inserted with its latching lugs 37 through openings 49 (see 7 ) of the base 17 of the upper housing part 5 out. The hooks 39 are thereby deflected due to the resilient effect of the respective elongate section 38 and then latch in an intermediate space 50 between the housing parts 4 and 5, more precisely between the base 17 and the upper end face 51 (see Fig 7 ) of the base 11. The space 50 is inaccessible from the outside. Accordingly, it is not possible, without visibly damaging the housing parts 4, 5, to reach the latching lugs 37 in order to thereby break the connection between the seal 21 and the housing part 5.

At the same time, the screw head 48 is in the receiving area 22 or in the pocket 23 of the you Gels 21 arranged. Accordingly, the screw head 48 is completely covered by the seal 21 and is therefore also inaccessible from the outside. Accordingly, the seal 21 must be destroyed in order to get to the screw head 48, which in turn makes an attempt at manipulation obvious.

Furthermore are in 7 the exposed areas 33 of the seal 21 can be seen. These are, as in 5 (and there in particular in detail A, which offers a somewhat oblique perspective), the only peripheral sections of the seal 21 that are accessible from the outside via recesses 52 in the housing upper part 5. This access is necessary in order for authorized persons to be able to use a screwdriver 54 (see 7 ) or the like to enable lateral access under the seal 21 or the unsupported areas 33 in order to break it out. The aim is to get to the inside of the housing 2, because the seal 21 is provided inaccessible from the outside on the remaining circumference. The raised border 20 protects (see 4 ) the hypotenuse 28 (see 10 ). Furthermore, the legs 29, 30 and the corner area 25 are protected by the side walls 16 and the transition 18. In 5 shown projections 53 engage in the 10 and 11 shown grooves 41 of the seal 21 in such a way that the corner area 25 of the seal 21 cannot be pried out with a screwdriver. Accordingly, the projections 53 form a form fit with the grooves 41 in the vertical direction 5 .

If an unauthorized person now attacks with the screwdriver 54 via one of the recesses 52 on one of the wings 31, 32 or their cantilevered areas 33, a breakage inevitably occurs at one of the predetermined breaking points 35 due to the bending moment occurring. The attempted manipulation can then be clearly identified from this.

Although the following invention has been described using exemplary embodiments, it can be modified in many ways.

Reference List

1

charging station

2

Housing

3

fairing hood

4

housing part

5

housing part

6

inner space

7

component

8th

connection socket

9

cable holder

10

corner area

11

base

12

Hole

13

poetry

14

edge

15

return

16

Side wall

17

Base

18

crossing

19

edge

20

raised border

21

seal

22

recording area

23

pocket

24

rounded side

25

corner area

26

corner area

27

corner area

28

hypotenuse

29

leg

30

leg

31

wing

32

wing

33

unsupported area

34

supported area

35

predetermined breaking point

36

base

37

detent

38

elongated section

39

hook

40

web

41

groove

42

calibration mark

43

floor

44

groove

45

screw

46

Hole

47

Dom

48

head

49

opening

50

space

51

face

52

recess

53

head Start

54

screwdriver

Claims (15)

Device (1), in particular charging station for charging and/or discharging an energy store of an electric vehicle with electrical energy a first housing part (4), a second housing part (5), a reversible connecting means (45) which detachably connects the first and second housing parts (4, 5) to one another, and a seal (21) which covers the reversible connection means (45) and has a number of predetermined breaking points (35) which are designed to break when the seal (21) is removed. device after claim 1 characterized in that the seal (21) is attached to the first and/or second housing part (4, 5) by means of an attachment means (37). device after claim 2 , characterized in that the fastening means (37) has a number of locking lugs. Device according to one of Claims 1 - 3 , characterized in that the seal (21) has a receiving area (22) for receiving an end (48) of the reversible connection means (45). device after claim 4 , characterized in that the seal (21) has a number of self-supporting areas (33) which are each connected to the receiving area (22) by means of one of the number of predetermined breaking points (35). device after claim 5 , characterized in that at least one of the number of cantilevered areas (33) is designed in the form of a wing (31, 32) or part thereof. Device according to one of Claims 1 - 6 , characterized in that the first and/or second housing part (4, 5) define a corner area (10) and at least one of the first and second housing parts (4, 5) has a triangular recess (15) in the corner area (10). wherein the seal (21) has a triangular shape and is located in the recess (15). device after claim 7 , characterized in that the triangular shape of the seal (21) has a hypotenuse (28) directed towards and/or covered by an outer border (20) of the first and/or second housing part (4, 5). device after claim 8 , characterized in that a respective corner region (26, 27) of the seal (21) formed between the hypotenuse (28) and a respective cathetus (29, 30) has one of the wings (31, 32). Device according to one of Claims 1 - 9 , characterized in that the seal (21) has a plagiarism protection and / or a calibration mark (42). Device according to one of Claims 1 - 10 , characterized in that the seal (21) is made of plastic, metal and/or glass. Device according to one of Claims 1 - 11 , characterized in that the seal (21) is manufactured as a one-piece plastic injection molded part. Device according to one of Claims 1 - 12 , characterized in that the reversible fastening means (45) has a screw and / or a snap hook. Device according to one of Claims 1 - 13 , characterized in that the first and second housing parts (4, 5) define between them a sealed volume (6) in which a number of electronic components (7) are accommodated, the seal (21) being completely outside the sealed volume (6 ) is arranged. Device according to one of Claims 1 - 14 , characterized in that the device (1) is designed as a manual control device or service machine.

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