GB2596944A

GB2596944A - Computer system with shielding cover and cable guide element

Info

Publication number: GB2596944A
Application number: GB2113549.6A
Authority: GB
Inventors: Neukam Wilhelm
Original assignee: Fujitsu Client Computing Ltd
Current assignee: Fujitsu Client Computing Ltd
Priority date: 2019-08-02
Filing date: 2020-07-30
Publication date: 2022-01-12
Also published as: GB202113549D0; WO2021023630A1; DE102019120976A1

Abstract

The invention relates to a computer system (1) having a carrier plate (3) on which there is arranged a detachably mounted shielding cover (8) which, together with the carrier plate (3), defines a shielded region (11) in which a data processing device (6) having a plurality of electronic components is arranged, wherein the shielding cover (8) has a recess (9), one or more cable lines (13) are electrically coupled to the data processing device (6) and, level with the recess (9), the carrier plate (3) has a first cable guide element (12) in which the one or more cable lines (13) are received, such that the one or more cable lines (13) are guided along a predetermined path (14) out of the shielded region (11).

Description

DESCRIPTION

COMPUTER SYSTEM

The invention relates to a computer system having a carrier plate on which a shielding hood is arranged which, together with the carrier plate, defines a shielded area in which a data processing device having a plurality of electronic components is arranged.

In computer systems, in particular so-called all-in-one computer systems, electronic components of computer units, i.e. data processing devices, are shielded, so that the components themselves are protected from interfering radiation and also no interfering radiation can penetrate to the outside from the components themselves. In the case of so-called all-in-one computer systems in particular, cable lines must nevertheless be routed out of shielded areas, which are then usually still located in the area of an overall housing (typically made of plastic material), but no longer in a shielded area. These cable lines lead, for example, to antennas, connectors in the overall housing, illuminants such as LEDs or the like.

One task underlying the invention is to improve the assembly of such computer systems.

A computer system is disclosed which comprises a carrier plate. A detachably mounted shielding hood is arranged on the carrier plate, which together with the carrier plate defines a shielded area in which a data processing device comprising a plurality of electronic components is arranged. The shielding hood has a recess. One or more cable lines are -2 -electrically coupled to the data processing device. At the level of the recess, the support plate has a first cable guide element in which the one or more cable lines are accommodated so that the one or more cable lines are guided out of the shielded region along a predetermined path.

According to the invention, it is provided that the one or more cable lines are position-centered exactly in the area of the recess of the shielding hood. In other words, the cable lines are precisely defined in their position at the level of the recess by means of the cable guide element. This ensures that the one or more cable lines do not interfere during assembly of the shielding hood, for example when the shielding hood is placed on and moved relative to the carrier plate. This also prevents the cable lines from becoming jammed and damaged as a result.

Thus, a problem-free assembly of the shielding hood is made possible, whereby the assembly is not negatively influenced by the cable lines. This is due in particular to the fact that the cable lines are protected from the hood in the area of the recess by the first cable guide element. In other words, the cable lines are spatially separated from the hood by the cable guide element in the area of the recess or cannot come into direct contact with the hood. This prevents damage to the cable lines. In particular, it prevents the shielding hood from being displaced at least partially along or on the cable lines during assembly as part of one or more joining movements until the shielding hood has reached its final assembly position. It is helped to avoid jamming, pinching or the like of the cable lines. -3 -

The shielding hood is detachably fixed to the carrier plate, i.e. it is mechanically securely connected to the carrier plate, but can be dismantled again. In the final mounting position, the shielding hood is latched to the carrier plate, for example. Alternatively or additionally, the shielding hood is firmly connected to the carrier plate in the final mounting position by means of additional elements, such as screws. The shielding hood is, for example, part of a shielding housing of the computer system. The shielding enclosure is thus at least partially formed by the shielding hood. In addition to the shielding hood, the shielding housing may therefore have further walls that are part of the carrier plate and/or are permanently connected to the carrier plate as separate components to the carrier plate.

The carrier plate is, for example, a carrier metal sheet, which is also called a base plate. Firmly connected to the carrier plate is, for example, a display unit, which is typically arranged on the other side of the carrier plate than the data processing device. The carrier plate and the other components are enclosed and surrounded by the overall housing as mentioned above.

The recess of the shielding enclosure is such that an interior of the shielded area is accessible via the recess (opening). In other words, the shielding enclosure is open in this area so that the one or more cable lines can protrude out.

The cable lines are guided by means of the first cable guide element in such a way that they come out from the shielded area in a defined position in the area of the recess, i.e. exactly at the level of the opening of the shielding hood. At -4 -the level of the recess means that at least one transformation section of the shielding hood, which bounds the recess, extends above the first cable guide element. In other words, the shielding hood directly surrounds the first cable guide element in the area of the recess.

The first cable guide element is adapted, for example, to the diameter and number of cable lines in such a way that these can be accommodated in and guided by the cable guide element without any problems. This ensures that unintentional sliding or falling out of the cable lines from the cable guide element is avoided.

According to one embodiment, a second cable guide element is provided such that the two cable guide elements together define the predetermined path for the one or more cable lines. This improves the guidance of the cable lines. In particular, this helps to ensure that the cable lines do not slip in the region of the recesses and are thus securely guided. The second cable guide element does not have to or is not necessarily arranged at the level of the recess in the shielding hood. For example, it is arranged slightly outside the shielding hood or inside the shielded area.

According to one embodiment, the second cable guide element is arranged along the longitudinal direction of the one or more cable lines offset from the first cable guide element, wherein the two cable guide elements are formed such that the one or more cable lines are guided from two opposite sides, with respect to the longitudinal direction. In other words, the second cable guide element is arranged offset from the first cable guide element with respect to a path of the path. As a result, the two cable elements are guided from both -5 -longitudinal sides along the path and the cable lines, respectively. This further helps to ensure that the cable lines are securely position-centered in the area of the recesses.

According to one embodiment, the first cable guide element and/or the second cable guide element have a receiving opening into which the one or more cable lines can be received, in particular received in a clamping manner. The cable lines are inserted or threaded into the receiving openings, for example, along the carrier plate, that is, parallel thereto. Optionally, the receiving openings are designed in such a way that a slight press-in pressure is necessary for inserting the cable lines into the receiving openings, so that the cable lines are held on the cable guide elements or in them in a clamping manner.

According to one embodiment, the first cable guide element and/or the second cable guide element are formed as a tab, in particular an L-shaped tab. For example, a first leg of the tab protrudes perpendicularly from the carrier plate, while a second leg adjoins the first leg and extends parallel to the carrier plate. This contributes to the fact that the cable lines can be inserted into the tab parallel to the carrier plate.

The aforementioned embodiments of the cable guide elements contribute to the ease of assembly of the cable lines.

According to one embodiment, the first and/or the second cable guide element are formed integrally with the carrier plate and are formed out from the carrier plate. This contributes to very low-cost manufacturing, with, for -6 -example, the cable guide elements merely being stamped or bent out of the carrier plate.

According to one embodiment, the first and/or second cable guide elements are formed separately from the carrier plate and are fixedly connected to the carrier plate. In other words, the cable guide elements are separate components that are then connected to the carrier plate. For example, the cable guide elements are made of spring metal sheet. It is precisely through a spring-loaded design of the cable guide elements that the assembly and fixing of the cable lines is further optimized. The separate cable guide elements are attached to the carrier sheet or carrier plate by means of rivets, clamps, welding, screws or the like, for example. It is essential that a conductive connection to the carrier plate is established to ensure electromagnetic compatibility.

According to one embodiment, the shielding hood is in contact with the first cable guide element and/or the second cable guide element in the state fixed to the carrier plate. This ensures conductive contact between the shielding hood and the cable guide element and thus the carrier plate. This optimizes the computer system with respect to interference radiation.

According to one embodiment, the shielding hood is mounted in such a way that the shielding hood is first placed on the carrier plate in a first joining movement and then transferred to the final mounting position in a second joining movement. Particularly with such a two-stage assembly movement of the shielding hood, it is made possible by means of the cable guide elements that the cable lines are not disturbingly in the way. -7 -

According to one embodiment, at least after the first joining movement, the shielding hood rests on the first cable guide element and is displaced on the first cable guide element during the second joining movement. In other words, the shielding hood is placed on the first cable guide element during the first joining movement and is subsequently displaced along the first cable guide element during the second joining movement. Among other things, this also helps to ensure that the joining movements of the shielding hood can take place in a defined position with respect to the carrier plate. In other words, the first cable guide element represents a kind of stop and guide element for the shielding hood during its assembly.

Examples of embodiments of the invention are explained in more detail below with reference to the figures. Elements of the same design or function are provided with the same reference signs across the figures. The figures show: Figure 1 a perspective view of a computer system according to an embodiment of the invention, Figure 2 a schematic view of the computer system when mounting a shielding hood, Figure 3 a partial perspective view of the computer system according to Figure 1 with the shielding hood in a final mounting position, and Figure 4 a partial perspective view of a computer system according to a further embodiment with a shielding hood in a final mounting position. -8 -

Figure 1 shows a perspective view of a computer system 1. The computer system 1 is a so-called all-in-one computer system, i.e. a system in which the screen and the computing unit or data processing device are encapsulated in one housing.

Figure 1 shows the open rear side 2 of the computer system 1. A carrier plate 3 is shown, on the front side 4 of which a screen unit is mounted (not shown) . On the rear side 5 of the carrier plate 3 is arranged in particular the heart of the computer system 1, a data processing device 6, which is arranged in a shielding housing 7 (only schematically indicated) . The data processing device 6 comprises several electronic components, in particular a motherboard with a processor arranged thereon. The data processing device 6 is encapsulated within the shielding housing 7 with a view to interference radiation or interference emissions.

The shielding housing 7 is formed, inter alia, by a shielding hood 8 which is detachably fixed to the carrier plate 3 and the remaining components of the shielding housing 7. For example, the shielding hood 7 is latched and/or screwed to the carrier plate 3 and/or the remaining components of the shielding housing 7.

The shielding hood 8 has at least one recess 9 in a side wall 10 of the shielding hood 8. Together with the carrier plate 3 and the possibly further components of the shielding housing 7, the shielding hood 8 defines a shielded area 11 (an interior of the shielding housing 7) in which the data processing device 6 is arranged.

At the level of the recess 9, a first cable guide element 12 and a second cable guide element 15 are arranged, in which a plurality of cable lines 13 are accommodated. By means of the -9 -two cable guiding elements 12 and 15, the cable lines 13 are guided along a predetermined path 14 out of the shielded area 11 of the shielding housing 7. The definition of predetermined path refers to that section of the cable lines 13 in which the two run in the same way, i.e. in the same direction.

Figure 2 shows the shielding hood 8 being placed on the carrier plate 3 during assembly. Figure 2 shows an enlarged detailed view of Figure 1. Along the path 14, the two cable guide elements 12 and 15 are arranged offset from each other. Both cable guide elements 12 and 15 are formed in one piece with the carrier plate 3. Both cable guide elements 12 and 15 are formed as L-shaped tabs, which are formed out of the carrier plate 3 and each have a receiving opening 22, into which the cable lines 13 are inserted. First legs 16 of the two cable guide elements 12 and 15, which project substantially perpendicularly from the carrier plate 3, delimit the cable lines 13 on opposite longitudinal sides 17.

Second legs 18, also cover legs, of the two cable guide elements 12 and 15, which run substantially parallel to the carrier plate 3 and delimit the cable lines 13 from above, adjoin the first legs 16. Together with the carrier plate 3, the legs 16 and 18 delimit the receiving openings 22 into which the cable lines 13 are inserted parallel to the carrier plate 3 during assembly. The receiving openings 22 face each other. This implies that the cable lines 13 are inserted parallel to the carrier plate 3 into the first cable guide element 12 along a first direction and into the second cable guide element 15 along a second direction, the two directions being opposite.

-10 -It should be mentioned at this point that the cable guide elements 12, 15 can also have other embodiments. For example, the cable guide elements 12, 15 are separate elements from the carrier plate 3 and are firmly connected thereto, for example by means of screw connections. Also, the carrier plate 3 does not necessarily have to delimit a part of the receiving openings 22.

Thus, the cable lines 13 are guided in the area of the recess 9, i.e. exactly at the level of the recess 9 from both sides along their course and are protected during the assembly of the shielding hood 7. The cable lines 13 are thus position-centered by means of the two cable guide elements 12 and 13. This means that during assembly of the shielding hood 7, the routed and securely guided cable lines 13 cannot be pinched and thus damaged.

When the shielding hood 8 is mounted, it is first placed on the carrier plate 3 in a first joining movement 19, along a normal direction to the carrier plate 3, and then moved to the final mounting position in a second joining movement 20. The second joining movement 20 runs parallel to the carrier plate 3 and, in the embodiment example according to Figures 1 to 3, also along the path 14 in the region of the recess 9.

After the first joining movement 19, the shielding hood 8 rests in the region of the recess 9, for example with a protruding tab 21, on at least the first cable guide element 12 and is displaced along the latter in the second joining movement 20 into the final assembly position, as shown in Figure 3.

Figure 4 shows a further embodiment example of a computer system 1, which essentially corresponds to the embodiment example according to Figures 1 to 3. However, in contrast to the first embodiment example, only a first cable guide element 12 is provided. Furthermore, in the difference, it is provided that after the shielding hood 8 has been placed on the carrier plate 3 in the course of the first joining movement 19, the second joining movement 20 again takes place parallel to the carrier plate 3, but this time not in the normal direction to the opening or recess 9, but transversely to the recess 9 or to the course of the cable lines 13.

Accordingly, the recess 9 is adapted, as are the other components of the carrier plate 3, so that during assembly the shielding hood 8 can be moved laterally, i.e. transversely to the course of the cable line 13. Also in this embodiment example, the shielding hood 8 rests on the first cable guide element 12 after the first joining movement 19, so that a conductive contact is established.

-12 -

REFERENCE SIGNS LIST

1 computer system 2 rear side 3 carrier plate 4 front side back side of carrier board 6 data processing device 7 shielding housing 10 8 shielding hood 9 recess side wall 11 shielded area 12 first cable guide element 15 13 cable line 14 path second cable guide element 16 first leg 17 longitudinal side 20 18 second leg 19 first joining movement second joining movement 21 protruding tab 22 receiving opening

Claims

-13 -CLAIMS1. Computer system (1), comprising a carrier plate (3) on which a detachably mounted shielding hood (8) is arranged, which together with the carrier plate (3) defines a shielded area (11) in which a data processing device (6) having a plurality of electronic components is arranged, wherein the shielding cover (8) comprises a recess (9), one or more cable lines (13) are electrically coupled to the data processing device (6), and at the level of the recess (9), the carrier plate (3) has a first cable guide element (12) in which the one or more cable lines (13) are accommodated, so that the one or more cable lines (13) are guided out of the shielded region (11) along a predetermined path (14).
2. Computer system (1) according to claim 1, wherein a second cable guiding element (15) is provided such that the two 20 cable guiding elements (12, 15) together provide the predetermined path (14) for the one or more cable lines (13).
3. Computer system (1) according to claim 2, wherein the second cable guiding element;15) is arranged along the longitudinal direction of the one or more cable lines (13) offset from the first cable guiding element (12), wherein the two cable guiding elements (12, 15) are formed such that the one or more cable lines (13) are guided from two opposite sides (17).
4. Computer system (1) according to one of the preceding claims, wherein the first cable guide element (12) and/or the second cable guide element (15) have a receiving opening (22) -14 -in which the one or more cable lines (13) can be received, in particular received in a clamping manner.
5. Computer system (1) according to one of the preceding 5 claims, wherein the first cable guide element (12) and/or the second cable guide element (15) are formed as a tab, in particular an L-shaped tab.
6. Computer system (1) according to one of the preceding 10 claims, wherein the first and/or second cable guide element (12, 15) are formed integrally with the carrier plate (3) and are formed out of the carrier plate (3).
7. Computer system (1) according to any one of claims 1 to 5, 15 wherein the first and/or second cable guide element (12, 15) are formed separately from the carrier plate (3) and are fixedly connected to the carrier plate (3).
8. Computer system (1) according to any one of the preceding 20 claims, wherein the shielding hood (8) is in contact with the first cable guide element (12) and/or the second cable guide element (15) in the state fixed to the carrier plate (3).
9. Computer system (1) according to one of the preceding claims, wherein the shielding hood (8) is mounted in such a way that the shielding hood (8) is first placed on the carrier plate (3) in a first joining movement (19) and then transferred to the final mounting position in a second joining movement (20).
10. Computer system (1) according to claim 8, wherein the shielding hood (8) rests on the first cable guide element (12) at least after the first joining movement (19) and is -15 -displaced on the first cable guide element (12) during the second joining movement (20).