DE102019129878A1 - Assembly of an electronic device with a device housing and an electronic assembly - Google Patents

Abstract

An assembly of an electronic device (3) comprises a device housing (2) and an electronic assembly (1), which has a frame element (10) which is used to establish a connection between the electronic assembly (1) and the device housing (2) along an attachment direction (E ) can be attached to the device housing (2). In addition, a connecting device is provided which has a first pin element (12) extending along the direction of attachment (E) for engaging in a first plug-in opening (203) and a second pin element (13) extending along the direction of attachment (E) for engaging in a second Has plug opening (205), wherein the first pin element (12) in engagement with the first plug opening (203) along two perpendicular and perpendicular to the direction of attachment (E) spatial directions (X, Y) is fixed in the first plug opening (203) and the second pin element (13) is supported in the second plug-in opening (205) when engaging in the second plug-in opening (205) along one of the spatial directions (X), but not along the other of the spatial directions (Y).

Description

The invention relates to an assembly of an electronic device according to the preamble of claim 1.

Such an assembly comprises a device housing and an electronics module, which has a frame element which can be attached to the device housing in order to establish a connection between the electronics module and the device housing.

Such an electronic device can, for example, take over control functions in the context of an industrial plant and can, for example, be combined with other electrical or electronic devices in order to take over a function module in this way, for example for performing control functions. Such an electronic device can, for example, be arranged on a mounting rail and combined with other electrical or electronic devices on such a mounting rail.

Such an electronic assembly can have, for example, a screen device which is attached to the frame element and can be connected to the device housing via the frame element. In the case of such an electronic assembly, there is a desire that the electronic assembly be held on the device housing with as little play as possible in the connected position, in order to avoid a relative movement between the electronics assembly and the device housing in the assembled position and to ensure that the electronics assembly sits firmly on the device housing.

With one from the US 8,346,184 known electronic device, a screen device is attached to a device housing and for this purpose latched to the device housing.

The US 7,869,106 discloses an electronic device in which a screen device is attached to a front side.

With one from the EP 1 404 170 B1 known modular device combination, an operating module is electrically coupled to a computer module.

The object of the present invention is to provide an assembly of an electronic device which enables a firm connection, which is as free of play as possible, of the electronic assembly to the device housing.

This object is achieved by an object with the features of claim 1.

Accordingly, the assembly has a connecting device which has a first pin element which extends along the attachment direction for engaging in a first plug-in opening and a second pin element which extends along the attachment direction for engagement in a second plug-in opening, the first pin element engaging in the first plug-in opening is fixed in the first plug-in opening along two directions perpendicular to one another and perpendicular to the direction of attachment and the second pin element is supported in the second plug-in opening when engaging in the second plug-in opening along one of the spatial directions but not along the other of the spatial directions.

In order to connect the electronics module to the device housing without play, it is proposed in the present case to use a connecting device which, on the one hand, provides a fixed bearing and, on the other hand, a floating bearing by using two pin elements in combination with assigned plug-in openings, and thus fixes the electronics module in a play-free manner in a plane perpendicular to the direction of attachment enables. In particular, a fixed bearing is provided via the first pin element in engagement with the first plug-in opening, which fixes the electronic assembly in an (approximately) play-free manner along a plane spanned by two spatial directions perpendicular to the attachment direction relative to the device housing. In contrast, a floating bearing is provided via the second pin element in engagement with the second plug-in opening, which only supports the electronic assembly along one spatial direction with respect to the device housing, but not along the other spatial direction. By engaging the first pin element in the first plug-in opening, the electronic assembly can thus be fixed against the device housing in a play-free manner against a translatory movement in the plane perpendicular to the direction of attachment. Via the engagement of the second pin element in the second plug-in opening, a rotational movement around the first pin element can additionally be prevented, so that the electronic assembly is completely fixed in the plane perpendicular to the direction of attachment relative to the device housing.

Because the combination of the first pin element with the first insertion opening and the second pin element with the second insertion opening provides a fixed bearing on the one hand and a floating bearing on the other hand, overdetermination in the connection is avoided. This enables tolerance compensation and a play-free determination, even if the dimensions of the electronic assembly and the device housing vary slightly within the tolerances.

In one embodiment, the first pin element is fixed in the first plug-in opening upon engagement in the first plug-in opening along a first spatial direction perpendicular to the mounting direction and also along a second spatial direction perpendicular to the first spatial direction and perpendicular to the mounting direction. When engaging in the first plug-in opening, the first pin element thus provides a fixed bearing that is supported in a plane perpendicular to the direction of attachment in the first plug-in opening. In contrast, the second pin element is spaced apart from the first pin element along the second spatial direction and is preferably only supported in the second plug-in opening along the first spatial direction, so that a rotational movement of the electronic assembly relative to the device housing around the first pin element is prevented via the second pin element. Because the second pin element, due to its support in the second insertion opening, realizes a floating bearing only along the second spatial direction, overdetermination in the connection is avoided.

In one configuration, the first pin element has a first contact section for support in the first plug-in opening along the first spatial direction and a second contact section for support in the first plug-in opening along the second direction in the first plug-in opening. The first contact section and the second contact section can each extend longitudinally and crosswise to one another, so that via the first contact section and the second contact section there is contact of the first pin element with an edge section surrounding the first insertion opening along the first spatial direction and along the second spatial direction. The first pin element is thus fixed in the plug-in opening without play both along the first spatial direction and along the second spatial direction.

The first insertion opening has, for example, an at least approximately circular opening cross section.

In contrast, in one configuration, the second pin element has only one contact section, which extends along the first spatial direction, for support in the second plug-in opening along the first spatial direction, but is not supported in the second plug-in opening along the second spatial direction. When engaged in the second plug-in opening, the second pin element thus provides a floating bearing which only provides support along the first spatial direction and avoids overdetermination in the connection between the electronic assembly and the device housing along the second spatial direction.

The contact section of the second pin element can, for example, extend longitudinally along the first spatial direction. However, a second contact section crossed to the contact section is not present.

In this embodiment of the second pin element, the second plug opening can, for example, like the first plug opening, have a circular opening cross section.

Alternatively, however, the second plug-in opening can also be designed in the manner of an elongated hole and extend oblong along the second spatial direction. The floating bearing for the second pin element is thus (also) effected by shaping the second plug-in opening, in which case the second pin element - instead of a configuration with an elongated contact section - can also be designed as a pin with a circular cross-section.

In one configuration, the device housing has a body to which the frame element can be attached in order to establish the connection between the electronic assembly and the device housing. The body can, for example, have a box-like shape and can enclose further functional components. It is conceivable that the body is designed to be attached to a mounting rail, for example. However, it is also conceivable that the body is designed to be attached to a higher-level assembly, for example a housing of an electrical or electronic device.

The connection of the frame element to the body of the device housing can be made, for example, via one or more latching elements which, when the frame element is attached to the body, produce a positive connection (along the attachment direction) between the frame element and the body. The locking elements are elastically deformable and snap into engagement with the body when the frame element is attached to the body, so that the frame element is positively attached to the body along the attachment direction.

In one configuration, the device housing has an insertion opening which is shaped in the body and into which the frame element can be inserted for establishing the connection between the electronic assembly and the device housing. In this case, the frame element can have, for example, one or more web sections which come into engagement with the insertion opening when the frame element is attached to the body. The web sections can, for example, form an approximately square box and protrude from a flatly extending frame section, which extends along a plane directed perpendicular to the direction of attachment, such that when the frame element is attached to the body of the device housing, the web sections engage in the engagement opening and the frame section comes into contact with the body outside the device housing.

In one configuration, the first pin element and the second pin element are arranged on the frame element and project, for example, from the frame section along the attachment direction. In this case, the first plug-in opening and the second plug-in opening are shaped on the body in such a way that when the frame element is attached to the device housing, the pin elements engage with the plug-in openings and thus fix the frame element with respect to the device housing without play.

However, other configurations and arrangements of the pin elements in cooperation with the plug openings are also conceivable. For example, the pin elements can be arranged on the body, while the plug openings are formed on the frame element. In yet another embodiment, one of the pin elements can be formed on the frame element and the other of the pin elements on the device housing in order to engage in an associated plug-in opening on the other component.

The electronics module can have a screen device, for example. By attaching the electronics module to the device housing, the screen device can thus be attached to the device housing, so that a screen is provided on the electronics device for the visual representation of information and possibly for entering control commands.

The screen device can, for example, have a printed circuit board which is attached, for example, to a side of the screen device which points inward towards the interior of the device housing and which carries one or more electronic components. If the electronics module is attached to the device housing, the printed circuit board is enclosed in the interior of the device housing and thus protected from the outside. On the other hand, a screen of the screen device is visible from the outside, so that information can be displayed on the screen and control commands can be entered if necessary (for example in the case of a touch-sensitive design of the screen).

• 1 eine Ansicht einer Elektronikbaugruppe mit einer Bildschirmeinrichtung zum Ansetzen an ein Gerätegehäuse eines Elektronikgeräts;
• 2 eine rückseitige Ansicht der Elektronikbaugruppe gemäß 1;
• 3 eine Ansicht der Elektronikbaugruppe bei Ansetzen an ein Gerätegehäuse eines Elektronikgeräts;
• 4 eine Ansicht der Elektronikbaugruppe in einer an das Gerätegehäuse angesetzten Stellung, betrachtet vom Inneren des Gerätegehäuses aus;
• 5 eine schematische Ansicht zweier Zapfenelemente in Eingriff mit zugeordneten Stecköffnungen; und
• 6 eine schematische Ansicht eines anderen Ausführungsbeispiels zweier Zapfenelemente in Eingriff mit zugeordneten Stecköffnungen.

The idea on which the invention is based will be explained in more detail below with reference to the exemplary embodiments illustrated in the figures. Show it:

• 1 a view of an electronic assembly with a screen device for attachment to a device housing of an electronic device;
• 2nd a rear view of the electronics assembly according to 1 ;
• 3rd a view of the electronic assembly when attaching to a device housing of an electronic device;
• 4th a view of the electronics assembly in a position attached to the device housing, viewed from the inside of the device housing;
• 5 a schematic view of two pin elements in engagement with associated plug openings; and
• 6 is a schematic view of another embodiment of two pin elements in engagement with associated plug openings.

1 and 2nd show views of an electronic assembly 1 that is a frame element 10th and one on the frame member 10th attached screen device 11 having. The screen setup 11 is for example about screws on the frame element 10th fixed and thus fixed to the frame element 10th connected such that the frame element 10th and the screen setup 11 train a functional unit.

As per the view 2nd visible, the screen device points 11 a circuit board 110 on, on the electronic components 111 are arranged. The circuit board 110 is on the back of the frame element 10th for example using screws with the frame element 10th connected and is within one by web sections 101 , 103 formed box on the back of a square frame section 100 of the frame element 10th arranged.

The electronics module 1 can, like from 3rd and 4th can be seen along an insertion direction E to a device housing 2nd of an electronic device 3rd be attached to the electronics module 1 with the device housing 2nd connect to. The electronics module 1 can do this in the direction of attachment E on a body 20th of the device housing 2nd that the electronics module 1 with the through the web sections 101 , 102 formed box into one in the body 20th shaped insertion opening 200 engages and with the frame section 100 of the frame element 10th outside the device housing 2nd comes to rest.

On web sections extending parallel to one another 101 are locking elements 102 in the form of outwardly projecting locking lugs formed when attaching the electronics module 1 in the direction of attachment E to the body 20th of the device housing 2nd with the insertion opening 200 delimiting edge sections 201 snap into engagement and thereby a positive connection between the electronic assembly 1 and the device housing 2nd of the electronic device 3rd manufacture like this for example 4th can be seen. Is the electronics module 1 to the body 20th of the device housing 2nd has been applied, so is the electronics module 1 over the frame element 10th thus form-fitting with the device housing 2nd connected.

To the electronics module 1 in the attached position in a direction perpendicular to the attachment direction E extended level opposite the device housing 2nd The frame element has no play 10th a connecting device with two pin elements 12th , 13 on by the circumferential, square frame section 100 towards the inside of the device housing 2nd protrude like pins and when attaching the electronic assembly 1 to the device housing 2nd with assigned plug openings 203 , 205 on inwards into the area of the insertion opening 200 protruding corner sections 202 , 204 of the body 20th of the device housing 2nd engage like this from 4th can be seen.

The peg elements 12th , 13 are in the area of indentations 104 , 105 in the form of corner areas that go in through the web sections 101 , 103 protrude formed box on the frame section 100 arranged. The shape of the indentations 104 , 105 is the corner sections 202 , 204 of the body 20th adjusted so that in the attached position the corner sections 202 , 204 in the area of the indentations 104 , 105 come to rest like this from 4th can be seen.

The peg elements 12th , 13 are with whom in 1 to 4th illustrated embodiment, configured differently, as shown schematically in 5 is shown, and take over different functions for clearance clearance in the plane perpendicular to the direction of insertion E .

So that has a pin element 12th Investment sections 120 , 121 on, which extend crosswise to each other and a support in the associated insertion opening 203 provide along both a first spatial direction X and a second spatial direction Y, so that over the pin element 12th the electronics module 1 against a translational movement along both spatial directions X, Y with respect to the device housing 1 in the west is supported without play. The pin element 12th provides a fixed bearing in the connection of the electronics module 1 with the device housing 2nd to disposal.

The other pin element 13 in contrast, only has one contact section 130 on that to support the pin element 13 along the first spatial direction X in the assigned plug opening 205 serves. The peg element is along the other, second spatial direction Y. 13 in the insertion opening 205 not supported. Because the pin element 13 along the second spatial direction Y from the pin element 12th is spaced can in this way on the support of the pin member 13 in the assigned plug opening 205 a rotational movement around the pin element along the first spatial direction X. 12th be prevented so that the electronic assembly 1 perpendicular to the direction of attachment E contrary to all degrees of freedom, essentially without play to the device housing 2nd is set.

By combining one over the pin element 12th created fixed bearing and one on the pin element 13 created floating bearing is thus a backlash-free support of the electronic assembly 1 compared to the device housing 2nd created, while avoiding overdetermination in the connection between the electronic assembly 1 and the device housing 2nd . This enables a play-free determination even within the scope of existing tolerances.

In the embodiment according to 5 are the plug openings 203 , 205 each formed with a circular opening cross-section. The direction-dependent support is via the system section 120 , 121 , 130 of the pin elements 12th , 13 provided. In an alternative, in 6 The schematically illustrated embodiment is also possible, the pin elements 12th , 13 each designed as pins with a circular cross-section and a direction-dependent support via the shape of the plug openings 203 , 205 to provide. So the pin element 12th assigned plug opening 203 for example have a circular opening cross section and thus the pin element 12th support along both spatial directions X, Y. The pin element 13 assigned plug opening 205 can, on the other hand, be designed as an elongated hole extending longitudinally along the second spatial direction Y, so that the pin element 13 in the insertion opening 205 is supported only along the first spatial direction X.

The idea on which the invention is based is not limited to the exemplary embodiments described above, but can in principle also be implemented in a completely different manner.

For example, a connecting device of the type described here for connecting any electronic assemblies to an associated one Serve device housing. In this respect, such a connection is not limited to a screen device.

A combination of a fixed bearing with a floating bearing can also be provided by other configurations and combinations of pin elements. In particular, it is conceivable to arrange the pin elements on the side of the device housing and to form the associated plug-in openings on the side of the electronic assembly. It is also conceivable and possible to arrange the pin elements on different sides, namely on the one hand on the side of the device housing and on the other hand on the side of the electronic assembly, so that the pin elements are attached to different assemblies.

Reference list

1

Electronics assembly

10th

Frame element

100

Frame section

101

Web section

102

Locking elements

103

Web section

104, 105

Indentation (corner jumping inwards)

11

Screen setup

110

Circuit board

111

Electronic components

12th

Pin element

120

Investment section

13

Pin element

130

Investment section

2nd

Device housing

20th

body

200

Insertion opening

201

Edge section

202, 204

Projecting section

203.205

Plug opening

3rd

Electronic device

E

Approach direction

QUOTES INCLUDE IN THE DESCRIPTION

This list of documents listed by the applicant has been generated automatically and is only included for better information for 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.

Patent literature cited

• US 8346184 [0005]
• US 7869106 [0006]
• EP 1404170 B1 [0007]

Claims (13)

Module of an electronic device (3), with a device housing (2) and an electronic module (1), which has a frame element (10) which is used to establish a connection between the electronic module (1) and the device housing (2) along an attachment direction (E ) can be attached to the device housing (2), characterized by a connecting device which has a first pin element (12) extending along the attachment direction (E) for engaging in a first plug-in opening (203) and a second pin extending along the attachment direction (E) Has pin element (13) for engagement in a second plug-in opening (205), the first pin element (12) in engagement with the first plug-in opening (203) along two spatial directions (X, Y) perpendicular to one another and perpendicular to the attachment direction (E) the first insertion opening (203) is fixed and the second pin element (13) when engaged in the second insertion opening (205) along one of the spatial directions (X), but not ng of the other of the spatial directions (Y) is supported in the second insertion opening (205). Assembly after Claim 1 , characterized in that the first pin element (12) engages in the first insertion opening (203) along a first spatial direction (X) perpendicular to the direction of attachment (E) and also along a direction perpendicular to the first spatial direction (X) and perpendicular to the attachment direction (E) standing, second spatial directions (Y) is fixed in the first plug-in opening (203), the second pin element (13) being spaced apart from the first pin element (12) along the second spatial direction (Y). Assembly after Claim 2 , characterized in that the second pin element (13) is only supported along the first spatial direction (X) in the second insertion opening (205) when engaging in the second insertion opening (205). Assembly after Claim 2 or 3rd , characterized in that the first pin element (12) has a first contact section (120) extending along the first spatial direction (X) for support in the first plug-in opening (203) along the first spatial direction (X) and one along the second spatial direction (Y ) extending, second contact section (121) for support in the first insertion opening (203) along the second spatial direction (Y). Assembly according to one of the Claims 2 to 4th , characterized in that the second pin element (13) has a bearing section (130) extending along the first spatial direction (X) for support in the second insertion opening (205) along the first spatial direction (X), but not along the second spatial direction (Y ) is supported in the second insertion opening (205). Assembly according to one of the Claims 2 to 5 , characterized in that the second insertion opening (205) is designed as an elongated hole extending along the second spatial direction (Y). Module according to one of the preceding claims, characterized in that the device housing (2) has a body (20) to which the frame element (10) can be attached for establishing the connection between the electronics module (1) and the device housing (2). Assembly after Claim 7 , characterized in that the frame element (10) has at least one latching element (101) for latching with the body (20) in a position attached to the device housing (2). Assembly after Claim 7 or 8th , characterized in that the device housing (2) has an insertion opening (200) formed in the body (20) into which the frame element (10) can be inserted. Assembly after Claim 9 , characterized in that the frame element (10) has a frame section (100) extending flat along a plane perpendicular to the direction of attachment (E) and at least one web section (101, 103) projecting from the frame section (100) along the direction of attachment (E) for engagement in the insertion opening (200). Assembly according to one of the Claims 7 to 10th , characterized in that the first pin element (12) and the second pin element (13) are arranged on the frame element (10) and the first insertion opening (203) and the second insertion opening (205) are formed on the body (20). Module according to one of the preceding claims, characterized in that the electronics module (1) has a screen device (11). Assembly after Claim 12 , characterized in that the screen device (11) has a printed circuit board (110) with at least one electronic component (111) attached to it.

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