PC cases for simplified assembly, computers and methods for assembling a computer

Abstract

Computer case (10) - with at least one lower shell (13) and one upper shell (20), - with side walls (15, 22) as part of the lower shell (13) and / or as part of the upper shell (20), - with a base plate (14) as part of the lower shell (13) and a cover plate (21) as part of the upper shell (20), - with a receiving space of the computer housing (10), which is surrounded by the lower shell (13) and the upper shell (20), - with plug-in connectors for peripheral devices, which are grouped together in at least one connection module (28), - with at least one housing recess (17) in which the connection module (28) is seated, - with at least one module holder (30) which holds the at least one connection module (28) in the housing (10), - with at least one circuit board holder (24) which holds a main board (12) in the housing (10), characterized in that - the lower shell (13) and the upper shell (20) are placed on top of each other in only one insertion direction (X) for housing assembly, - the module holder (30) and the circuit board holder (24) are also inserted into the housing (10) in their holding position only along the insertion direction (X), - the module holder (30) and the circuit board holder (24) are fixed in their effective position by the upper shell (20) which sits on the lower shell (13).

Description

[0001] The invention relates to a computer housing with at least one lower shell and one upper shell, with side walls as part of the lower shell and / or as part of the upper shell, with a base plate as part of the lower shell and a top plate as part of the upper shell, with a receiving space of the computer housing which is surrounded by the lower shell and the upper shell, with plug connectors for peripheral devices which are combined in at least one connection module, with at least one housing recess in which the connection module is seated and with at least one module retaining part which holds the at least one connection module in the housing as well as with at least one circuit board retaining part which holds a mainboard in the housing.

[0002] DE 10 2013 101 825 B4 discloses a computer housing which has a basic module with a specific usable volume. If more space is needed to accommodate components, the housing can be expanded by attaching additional modules. These modules are frame-like and are inserted between the housing wall and the base. In this way, the housing gains more height and thus more usable volume.

[0003] German patent application DE 2015 122 286 B3 shows a computer case with three fixed side panels and a sliding top panel. The fourth, separate side panel can be locked onto the case and holds the top panel in position. The motherboard, which is inserted into the case, moves in the same direction as the top panel.

[0004] Another housing for electronic components is shown in EP 2 853 042 B1. This housing has at least two housing parts, each with dome elements on its top and bottom, respectively. These dome elements allow the housings to be connected to each other. The dome elements are equipped with contacts, enabling the housings to be electrically connected.

[0005] Other case designs are known from the state of the art, though these are not documented in print. So-called "tower cases" remain widespread to this day. These cases feature standardized mounting points for a computer's mainboard, also known as the "motherboard." A number of cutouts on the rear of the case are also standardized. Depending on the chosen configuration, these cutouts provide access to connectors for peripheral devices. If these cutouts are not in use, they are covered by blanking plates. Furthermore, this case category offers additional mounting points for drives, allowing the reading of various data storage media, as well as space for different types of data storage devices such as hard drives.

[0006] These enclosures are usually accessible by having at least one removable side panel. The side panel is typically pre-attached to a base frame using hooks and a sliding mechanism, and then screwed into place for final installation.

[0007] These tower cases are typically made from sheet metal and are widely used because they offer enough space for pre-configuring both low- and high-performance computers with a few to many peripherals. They are therefore a kind of universal case into which PC components for any type of computer can be installed. In addition to the upright design, there is also a horizontally oriented case design with the same characteristics.

[0008] The increasing performance of electronic components, coupled with their reduction in size, has recently made it possible to integrate sufficient computing power and a convenient number of common interfaces for external devices onto very small motherboards. Provided that no drives for reading external storage media need to be integrated, computers for common office applications can be designed in this way with cases barely larger than a cigarette pack or a deck of cards. Furthermore, a number of cases for microcomputers with a volume of 0.5 to 1 liter are known.

[0009] For this reason, larger computer manufacturers repeatedly offer computers in significantly smaller form factors compared to a tower case, sometimes featuring an elaborate and eye-catching design.

[0010] All enclosures known to the applicant, regardless of their size and form factor, initially share the significant disadvantage of complex computer assembly. Inside the enclosures, the motherboards are secured with screws and / or snap-in fasteners, the connectors for external peripherals are often soldered directly onto the motherboard, assembly tools must be applied from different angles, or the enclosure must be rotated during assembly. Disassembly for recycling is correspondingly complex, and replacing individual computer components in case of damage or for the purpose of performance upgrades or enhancements is not possible with small form factors. As a rule, a substantial portion of the assembly is manual.

[0011] Furthermore, especially with small form factors, the housings are precisely adapted to the circuit board and the soldered connectors on it, so that reusing the housing with a different circuit board is not possible. The still-functional housing is usually disposed of along with the old circuit board.

[0012] The object of the invention is to provide a PC case that is extremely easy to assemble and disassemble, enables fully automated assembly, and allows the replacement of computer components while continuing to use the case and, if necessary, other components.

[0013] The problem is solved first of all by a computer housing with the features of claim 1, in particular with its characterizing features, according to which the lower shell and the upper shell are placed on top of each other in only one plug-in direction for housing assembly, and the module holder and the circuit board holder are also inserted into the housing in their holding position only along the plug-in direction, and the module holder and the circuit board holder are fixed in their holding position by the upper shell sitting on the lower shell.

[0014] The main advantage of the computer housing according to the invention lies in the fact that the housing components, as well as a large proportion of the electronic components, are assembled along only one insertion direction, i.e., along only one assembly direction. This insertion or assembly direction is orthogonal to the base of the lower shell. In this way, fully automated manufacturing can be implemented particularly easily and efficiently.

[0015] Additionally, screwless mounting of the components is ensured by permanently fixing all housing components, including the electronic components, when the housing is closed, i.e., by placing the upper shell onto the lower shell. The housing shells are also attached to each other without screws. In one embodiment of the invention, friction between the lower and upper shells may be sufficient to securely connect them. Alternatively, the lower and upper shells are magnetically attached to each other. Simple positive-lock connections, such as snap-fit ​​connections, are also conceivable.

[0016] The printed circuit board holder is designed as a frame aligned parallel to the floor, which has receptacles facing the top plate for a main circuit board.

[0017] A key advantage is that the frame, which runs parallel to the base plate, can simply be inserted into the lower shell and placed onto the base plate. Frame components are preferably supported by the side walls or support projections of the base, thus securing the frame in position perpendicular to the insertion direction. The receptacles for the mainboard, facing the top plate of the upper shell, allow the mainboard to be inserted into the housing in the insertion direction. These receptacles can be designed, for example, as domes or pins, with the mainboard potentially featuring perpendicular openings. Pins then extend through these openings in the mainboard, securing it, particularly perpendicular to the insertion direction. For securing against the insertion direction, the pins can be equipped with locking lugs or a mounting attachment that is installed in the insertion direction.

[0018] A particularly preferred embodiment, however, is one in which the frame is formed in two parts: a first frame part parallel to the base plate, in which a first recess for the main board is machined with an undersized dimension, and in whose frame edge regions surrounding the first recess material recesses for receiving circuit board edge sections are incorporated; and a second frame part parallel to the base plate, which also has a second recess for the main board machined with an undersized dimension, and in whose frame edge regions surrounding the second recess are provided for covering circuit board edge sections, wherein the second frame part sits on the first frame part and both frame parts are designed to hold the main board between them. The previously described mandrels can be used for this purpose. These then hold the circuit board on the first frame part as described above.On the other hand, they extend through the second frame part and lock it to the first frame part.

[0019] With this two-part frame, no special modifications are required on the circuit board side. Due to their design, circuit boards have a border free of electronic components, which can serve as a support area. If modifications to the motherboard to fit the housing are unnecessary, especially if the mounting holes on the circuit board holder do not need to be considered, commercially available motherboards can be used to populate the computer case. Depending on the chosen motherboard, only the circuit board holder, specifically its recess, would need to be modified for different configurations. The motherboard sits between the two frame parts and is secured both perpendicular to and parallel to the insertion direction.

[0020] It is also provided that the frame has spacers facing the base plate, which distance the frame from the base plate.

[0021] Such spacers ensure sufficient distance between the frame and the base plate, so that the main circuit board does not come into contact with parts of the lower shell of the housing according to the invention.

[0022] It is also intended that the frame has a shock-absorbing elasticity that reduces the vibrations acting on a mainboard mounted on the frame.

[0023] Such a design protects the motherboard from impacts, for example from the computer case being dropped, which can happen especially with smaller computer cases in offices.

[0024] The connectors for peripheral devices such as printers, monitors, etc., are designed as separate modules and not as part of the motherboard. This ensures maximum mechanical decoupling between the connectors and the motherboard, especially when a cable connection exists between the connector module and the motherboard. This has the significant advantage that mechanical forces, which inevitably occur when using the connectors of the connector module, cannot act on the motherboard and, in particular, on the connection between the motherboard and the connector.

[0025] Furthermore, faulty slots can be repaired by replacing the connection module. It is also possible to retrofit connection modules as needed, thus expanding or modernizing a computer.

[0026] A module holder is provided for mounting the connection module in the computer housing according to the invention, which is also inserted into the computer housing in the plug-in direction.

[0027] It is also intended that the module holder is held securely in the computer housing, perpendicular to the insertion direction.

[0028] Securing the module holder perpendicular to the insertion direction can be achieved by the module holder and the computer housing, in particular a side wall section of the lower shell and / or upper shell, forming corresponding positive locking parts for holding the module holder.

[0029] This positive locking is preferably achieved by having a circumferential contour of the module holding part encompassed by a side wall section of the lower shell and / or upper shell.

[0030] Specifically, in a first embodiment, it is provided that the module holding part is a support extending longitudinally to the insertion direction, with a lateral surface section that is cylindrically shaped at a circumferential angle of more than 180 degrees, and that a side wall section of the lower shell and / or upper shell surrounds the cylindrical lateral surface section of the module holding part in a form complementary manner.

[0031] If the module holder is held transversely to the insertion direction solely by a positive fit between a side wall section and a form-complementary section of the outer surface of the module holder, the connection module can also be mounted in the insertion direction without any problems.

[0032] Alternatively, it is provided that the connection module is inserted transversely to the plugging direction into a housing recess, in particular a window-like recess, in a side wall.

[0033] The connection module is inserted from the outside into the window-like recess in the side panel, facing the computer case's interior. A suitable stop prevents the module from sliding all the way through the recess. In particular, a cover plate, which enhances the visual appeal of the connection module's exterior, can be attached to a frame rib that narrows the recess.

[0034] If a locking element of the module holder engages inside the housing with a locking element of the connection module, thus preventing the connection module from slipping out of the window-like recess perpendicular to the insertion direction, the locking connection between the connection module and the module holder can be part of the positive locking connection that secures the module holder perpendicular to the insertion direction in the housing.

[0035] The invention specifically provides that the connection module is provided with a groove extending in the plug-in direction and the module holding part with a spring aligned in the plug-in direction, the spring engaging in the groove to secure the connection module in the housing.

[0036] Accordingly, in a specific embodiment, it would then be ensured that the engagement of the spring of the module holder in the groove of the connection module is part of the positive locking mechanism of the module holder in the computer housing, acting transversely to the insertion direction.

[0037] This implies that a positive locking mechanism between a side wall section and the module holder on the one hand, and the engagement of the tongue and groove on the other, together form the positive locking fixation of the module holder transverse to the insertion direction.

[0038] The problem according to the invention is further solved by a computer according to claim 15 which uses the prescribed computer housing.

[0039] Finally, the problem according to the invention is also solved by a method according to claim 16, which can be further developed by advantageous embodiments according to claims 17 and 18.

[0040] Further advantages of the invention, as well as a better understanding of it, will become apparent from the following description of an exemplary embodiment. The following are shown: Fig. 1: An exploded view of a computer using a computer case according to the invention. Fig. 2: A representation of the lower shell of the computer case according to Fig. 1 in top view. Fig. 3: Illustration of a first frame part of a printed circuit board mounting part of the computer housing according to Fig. 1 in top view. Fig. 4: The frame part according to Fig. 3 in perspective view. Fig. 5: A representation of the computer according to Fig. 1 View from above with the top shell hidden. Fig. 6: A section view according to section line VI-VI in Fig. 5. Fig. 7: A sectional view according to section line VII-VII in Fig. 5. Fig. 8: A sectional view according to section line VIII-VIII in Fig. 5. Fig. 9: A top view of the printed circuit board holder with attached module holders. Fig. 10: The representation according to Fig. 9 including connection modules. Fig. 11: The computer after Fig. 1 in a perspective view. Fig. 12: A representation of the computer according to Fig. 11 in top view according to view arrow XII. Fig. 13: A representation of the computer according to Fig. 11 according to view arrow XIII. Fig. 14: A second perspective view of the computer after Fig. 1 on its underside. Fig. 15: A section enlargement according to the section circle in Fig. 5. Fig. 16: A first alternative embodiment for fixing the module holding part in the lower shell. Fig. 17: A second alternative embodiment for fixing the module holding part in the lower shell.

[0041] In the figures, a computer case - possibly also as part of a computer - is marked with the reference number 10.

[0042] The computer case 10 is in Fig. Figure 1 shows the computer housing 10 as part of a computer 11 in an exploded view. The following description of the invention makes no significant distinction between the computer housing 10 and the computer 11. In this exemplary embodiment, the computer 11 is defined as the computer housing 10, which contains a mainboard 12. The mainboard 12 (also called motherboard) has the usual electronic components that make up a modern computer, in particular the main processor.

[0043] The in Fig. The computer 11 shown, with its housing designated by reference numeral 10, therefore comprises, in addition to the mainboard 12, the following computer housing parts: The computer housing 10 initially comprises a lower shell 13, formed by a base plate 14 with upright side walls 15. The side walls 15 are arranged opposite each other and separated by a gap 16 without side walls. Each side wall 15 also has a window-like opening 17, the cross-section of which is narrowed by a lower frame web 18 near the base plate and an upper frame web 18 farther from the base plate. Alternatively, the frame web 18 can follow the contour of the window-like opening 17 all the way around.

[0044] The in Fig. 1 The underside of the bottom shell 13, not shown, has non-slip feet 19 for secure placement of the computer case 10 on a surface.

[0045] As a counterpart to the lower shell 13, the computer housing 10 has an upper shell 20. In the exemplary embodiment, the upper shell 20 is formed by a cover plate 21 with opposing side walls 22 pointing towards the lower shell 13, wherein the side walls 22 in the exemplary embodiment are designed as ventilation grilles 23.

[0046] The ventilation grilles 23 of the upper shell 20 are aligned with the insertion spaces 16 of the lower shell 13. When the lower shell 13 and upper shell 20 are assembled, the ventilation grilles 23 fill the respective insertion spaces 16, so that the computer housing 10 comprises a surrounding side wall which is not described in detail here.

[0047] The computer housing 10 then includes a number of components which arrange electrical / electronic components securely in the computer housing 10.

[0048] First, let us mention the circuit board holder 24, which in the exemplary embodiment is formed by a two-part frame 25 with a first frame part 26 and a second frame part 27.

[0049] The housing also includes connection modules 28, which combine various connectors 29 into a single component. The connectors 29 are used to connect the computer 11 to peripheral devices. These include standard computer connectors such as USB ports, card slots, jack / RCA connectors for audio connections, etc.

[0050] To anchor the connection modules 28 in the computer housing 10, so-called module retaining parts 30 are provided.

[0051] To ensure adequate cooling, especially for high-performance processors on the mainboard 12, fans 31 can be part of the computer case 10.

[0052] In the present embodiment, the upper shell 20 carries an auxiliary circuit board 32, which is equipped with a switching element 33 in the form of a push button. The computer 11 can be switched on by means of the push button.

[0053] The plug-in direction X, along which the essential components of the computer 11 are plugged together, is orthogonal to the base plate 14. Depending on the embodiment, the connection modules 28 are mounted in the plug-in direction X or perpendicular to the plug-in direction X.

[0054] For the sake of simplicity, a depiction of various components of the computer 11, or of the computer housing 10, has been omitted here. This includes, for example, the connection between the connection modules 28 and the mainboard 12. A power supply unit has also been omitted. The invention is free to choose from various solutions in this regard. In particular, the power supply unit can be part of the computer housing 10, but the power supply can also be part of the mainboard 12. It is also possible to use an external power supply unit located outside the computer housing 10.

[0055] Fig. Figure 2 shows the lower shell 13 in a top view. This view initially shows that the base plate 14 has a grid-like perforated structure 34 in a partial area. This allows air exchange between the interior of the housing and the outside environment, thus promoting the cooling of electronic components located in the computer housing 10, in particular electronic components on the mainboard 12.

[0056] This can be recognized by the following: Fig. 2 and taking into account the subshell representation in Fig. 1. The side walls 15 are stepped in their free edge area facing the upper shell 20. The inner wall edge areas, designated with reference numeral 35, are recessed or sunk towards the base plate 14. The degree of recession corresponds approximately to the thickness of the top plate 21, so that it sits flush with the top edge of the step.

[0057] Attention must also be paid to the side wall sections bordering the respective insertion space 16. These each have a insertion slot 36 open towards the insertion space 16 and accessible from above. This insertion slot 36 serves to accommodate wall edge areas of the ventilation grilles 23 on the upper shell side.

[0058] The Fig. 3 and Fig. Figure 4 shows the first frame part 26, where Fig. 3 the first frame part 26 in top view and Fig. 4 the first frame part 26 in perspective view analogous to Fig. Figure 1 shows. The first frame part 26 belongs to the frame 25, which in this case forms the circuit board holder 24 for the main board 12. Based on Fig. 3 and taking into account Fig. 2. It is evident from the outset that the first frame part 26 has an outer contour corresponding to the inner perimeter contour of the lower shell 13, at least in its corner areas, and thus, when inserted into the lower shell 13, only rests against the inner surfaces of the side walls 15 of the lower shell 13 with the necessary clearance. In this way, it is ensured that the frame 25, with its first frame part 26 and also with its second frame part 27, which is constructed analogously in this respect, lies immovably parallel to the base plate in the lower shell 13.

[0059] The first frame part 26 then has a first recess 37, which here specifically forms a complete opening through the frame 25. Due to material projections 38 that extend into the first recess 37, the first recess 37 is smaller than the dimensions of the main board 12. In the area of ​​the material projections 38, at least the first frame part 26 has material recesses 39 in the form of a stepped ledge. These material recesses 39 form the receptacles 40 facing the cover plate 21 for the main board 12.

[0060] As the exploded view shows Fig. As already suggested in Figure 1, the stepped material recess 39 corresponds approximately to the thickness of the circuit board of the main board 12, which is seated with its edge regions in the material recesses 39. In the exemplary embodiment of the frame 25, the upper surface of the main board 12 facing the cover plate 21 is flush with the surface of the first frame part 26 facing the cover plate 21 and is covered by the second frame part 27 in the area of ​​the material projections 38. In this way, the main board 12 is securely mounted in the frame 25.

[0061] Fig. Figure 4 further shows that the first frame part 26 is provided with molded spacers 41 in the corner areas on its underside facing the base plate 14. These spacers 41 serve to distance the lower frame part 26 from the base plate 14. This promotes air circulation between the mainboard 12 and the base plate 14 via the grid-like perforation structure 34. Furthermore, a space is created between the frame structure holding the mainboard 12 and the base plate 14, which allows for a restoring elasticity and shock-absorbing movement in the event of vibrations of the housing 10, thus protecting the mainboard 12.

[0062] Already the Fig. It can be seen from Figure 1 that the module retaining parts designated with reference numeral 30 have a locking element in the form of a protruding spring 42 on their end face facing the respective connecting module 28. It is also already Fig. 1 shows that the connection modules 28 have locking elements in the form of slot-parallel grooves 43 on their side walls facing the respective module holding parts 30.

[0063] Fig. Figure 9 now shows a top view of the frame 25, more precisely the second frame section 27 from the top, with the module retaining elements 30 attached in the frame corner areas. For the sake of clarity, this illustration omits a depiction of the lower shell 13, into which the frame 25 and the module retaining elements 30 are inserted.

[0064] It is clear that the springs 42 protrude into a module recess 44 formed by the frame 25. Fig. Figure 10 shows the representation according to Fig. 9, supplemented by connection modules 28. These occupy the space provided for them in the form of the module recesses 44 in the frame 25. Fig. Figure 10 shows that the springs 42 engage in the respective opposite grooves 43 and thus fix the connection module 28.

[0065] Fig. Figure 5 shows a top view of the computer 11 with the upper shell 20 of the computer case 10 removed. It can be seen that the frame 25, consisting of the first frame part 26 and the second frame part 27, is inserted in the lower shell 13, with the mainboard 12 held between the two frame parts 26 / 27. A module holder 30 is mounted on the frame 25 at each of the case corners, with two opposing module holders 30 each holding a connector module 28 between them. It can also be seen that the frame 25 supports the fans 31.

[0066] Fig. Figure 6 shows a section view according to the section line VI-VI in Fig. 5. This sectional view is particularly suitable for identifying the mounting of the mainboard 12 within frame 25. For this purpose, it shows Fig. 6 First, the frame 25 is composed of the first, lower frame part 26 and the second, upper frame part 27. As already described above, the lower frame part 26 has spacers 41 pointing towards the base plate 14 of the housing 10 and is thus spaced from the base plate 14. The illustration shows the resulting movement space 45 between the first frame part 26 and the base plate 14, which allows for shock-absorbing, resilient deflection of the frame 25.

[0067] Furthermore, it can be seen how the material projections 38 extend into the first recess 37 and that the main circuit board 12 is inserted into the material recesses 39 of the material projections 38. The stepped design of the material recess 39 is also shown in the sectional view. Fig. 6. The previously described fact is also evident, namely that the upper surface of the circuit board 12, facing upwards towards the upper shell 20 – disregarding material tolerances – is approximately flush with the upper surface of the first frame part 26, also facing the upper shell 20. In this respect, it is concluded from Fig. 6 in conjunction with Fig. 3 and Fig. 4 clearly shows that the mainboard 12 is secured against ground-parallel movements, i.e. movements perpendicular to the insertion direction X, in the material recesses 39 of the first frame part 26.

[0068] By placing the second frame part 27 onto the first frame part 26, thus joining frame parts 26 and 27 to form frame 25, the mainboard 12 is secured in the frame against the insertion direction X. For this purpose, the second frame part 27 has a second recess 46, which is also manufactured with a smaller dimension than the mainboard 12. This design is based on the previously mentioned construction of the first part. The second frame part 27 also has second material projections 47, which, viewed in the insertion direction X, are aligned with the first material projections 38 and thus cover the top of the mainboard 12.

[0069] In this way, the mainboard 12 is securely mounted between the frame parts 26 and 27, whereby this mounting and fixing is achieved without screws by simply inserting the frame parts 26 and 27 and the mainboard 12 in the X direction.

[0070] The Fig. Figure 6 further shows that the module retaining elements 30 – as already mentioned above – rest on the frame 25. However, the sectional view shows that the longitudinal extent of the module retaining elements 30 in the insertion direction X is dimensioned such that their surface facing the upper shell 20 is flush with the recessed wall edge areas 35, so that a top plate 21 of the upper shell 20 (not shown here) secures the module retaining elements 30 parallel to the insertion direction.

[0071] Fig. Figure 7 shows a cross-sectional view through the computer. Figure 11 shows... Fig. 5 according to section line VII-VII. This section line VII-VII extends through the engagement area of ​​module holder 30 and connection module 28 and primarily serves to illustrate the parallel alignment of the connection modules 28. It can be seen how the springs 42, aligned parallel to the insertion direction, engage in the grooves 43, which are also aligned parallel to the insertion direction. This makes Fig. Figure 7 clearly shows that the module retaining elements 30 are inserted into the lower shell 13 in the insertion direction X, i.e., from above towards the base plate 14. The springs 42 slide into the grooves 43 and secure the respective connection module 28. In particular, if this module – in an optional embodiment – ​​is also inserted into the housing 10 in the insertion direction X, the module retaining elements 30 not only provide protection against movement perpendicular to the insertion direction X, but also against movement opposite to the insertion direction X.

[0072] As will be described later, in the embodiment shown here, the connection modules 28 are inserted transversely to the insertion direction X into the window-like recesses 17 already described above, so that in this case the module holding parts 30 secure the connection modules 28 in particular against their insertion direction in the window-like recess 17.

[0073] Fig. 8 is a section view according to section line VIII-VIII in Fig. 5 and serves in particular to illustrate the determination of the not absolutely necessary, but optional useful fans 31 to generate a cooling airflow in the computer case 10.

[0074] The second frame part 27 of the frame 25 initially has bores 48 which, in the present embodiment, completely penetrate the second frame part 27 but are not present in the first frame part 26. This creates blind holes in the frame 25. The fans 31 are provided with fixing pins 49 on their underside facing the base plate 14. These fixing pins 49 engage in the bores 48 and secure the fans 31 to the frame 25. The connection between the fixing pins 49 and the bores 48 can be achieved by friction. However, it is also conceivable to use a positive connection, for example, by a snap-fit ​​mechanism, to secure the fans 31. The fans 31 can be dimensioned in height such that the upper shell 20 rests on the respective fan top. For this purpose, the upper shell 20 can also have corresponding recesses facing the fans 31.However, it is quite conceivable that the fastening between the fixing pins 49 and the bore 48 is sufficient to securely position the fan 31 on the frame 25.

[0075] Also from Fig. Figure 8 shows that the fans 31 are only to be inserted into the computer case 10 in the X direction in order to position and secure them there.

[0076] The Fig. Figures 11 to 14 show the computer case 10 or the computer 11 in various external views, with the computer case 10 shown fully assembled. Fig. Figure 11 shows a perspective view of the computer housing 10. The upper shell 20 is placed on the lower shell 13, with the ventilation grilles 23 seated in the recesses 16 of the lower shell 13 as described above. The top plate 21 of the upper shell 20, like the bottom plate 14, has a perforated structure (not specified in detail) that facilitates air exchange between the interior of the housing and the outside environment for heat dissipation. The perforated structure of the top plate 21 surrounds an area in which the switching element 33 is located for user access. For design reasons, the switching element 33, in the form of a touch-sensitive button, has a double-arrow-shaped contour.

[0077] The connection modules 28 are arranged in corresponding window-like recesses 17 of the side walls 15 of the lower shell 13.

[0078] Fig. Figure 12 shows a top view of the computer case 10 or the computer 11 according to Fig. 11. This illustration shows, firstly, that the cover plate 21 – as already described – is recessed into the stepped wall sections of the lower shell 13. Furthermore, it can be seen in Fig. 12, that the computer housing 10, viewed parallel to the base, has an approximately square cross-section, whereby, for design reasons, partially cylindrical wall sections formed by the side walls 15 of the lower shell 13 are located in the corner areas and project outwards relative to the square cross-section. Besides design aspects, these also have a technical function for securing the module holder 30 perpendicular to the insertion direction X, which will be discussed later.

[0079] Fig. Figure 13 shows the computer case 10 or the computer 11 in a side view. Together with Fig. Figure 14, a perspective view of the base plate 14, further clarifies the function of the feet 19 of the housing 10. In addition to the anti-slip inserts, the feet 19 space the base plate 14 away from any surface on which it is placed and, via the resulting ventilation gap between the surface and the base plate 14, allow improved air exchange through the grid-like perforation structure 34 in the base plate 14.

[0080] As already indicated in the preceding description and especially from the exploded view according to Fig. As can be seen in Figure 1, the computer housing 10 is characterized by its design in that almost all components are inserted into the lower shell 13 in the X direction and are secured against movement perpendicular to the X direction by mutual interaction and interaction with the lower shell 13, without the need for separate fastening means such as screws, pluggable fasteners, locking devices, etc. The insertion of the components in the X direction in a defined sequence and the interaction of the components with each other alone secures them against movement perpendicular to the X direction.

[0081] The components are held in place, in particular secured against movement parallel to the insertion direction X, by the interaction of the lower shell 13 and the upper shell 20. The lower shell 13 and the upper shell 20 are also fixed to one another without separate mechanical fasteners. In a preferred embodiment, the parts 13 and 20 are held magnetically to one another. It is theoretically possible to achieve sufficient retention through friction. A less advantageous, but conceivable, option is to provide the side walls 22 of the upper shell 20 or the side walls 15 of the lower shell 13 with locking elements that engage the base plate 14 or the top plate 21, respectively. It is also possible to bond the upper shell 20 and the lower shell 13 together with an adhesive that can be released by applying heat to disassemble the housing 10.

[0082] In the illustrated embodiment, the mounting in the X direction does not apply to the connection modules 28. These are inserted into the lower shell 13 perpendicular to the mounting direction, as described below. However, it is readily conceivable, and will be discussed below, to mount the connection modules 28 in the X direction as well, without having to forgo any of the aforementioned advantages.

[0083] The assembly of the in the Fig. The fully or partially depicted computer case 10 is shown in sections 1 to 15 as follows:

[0084] The open-topped lower shell 13 is the first component, which can be fitted with the optional anti-slip feet 19 on its underside at any point during the assembly process. The first, lower frame part 26 is then inserted into the lower shell 13, with its recesses 39, which form the mounting points for the main circuit board 12, oriented towards the upper shell 20. The module recesses 44 point towards the window-like recesses 17 in the side walls 15 of the lower shell 13.

[0085] As can be seen from the drawings, the corner areas of the lower frame part 26 are designed to be form-complementary to the corresponding side wall sections of the side walls 15 and rest there only with a certain degree of play. The lower frame part 26, which is thus inserted into the lower shell 13 only in the insertion direction X, is thereby secured against slipping perpendicular to the insertion direction X.

[0086] The mainboard 12 is then inserted into the corresponding receptacles 40 of the lower frame part 26. Since, in the exemplary embodiment, these receptacles 40 are designed as material recesses 39 that are congruent in shape to the inserted circuit board sections of the mainboard 12, the receptacles 40 prevent movement of the mainboard 12 perpendicular to the insertion direction X. Here too, the mainboard 12 is inserted into the lower shell 13 only in the insertion direction X.

[0087] The upper frame part 27 is then inserted into the lower shell 13 in the insertion direction X. The second, upper frame part 27 rests on the first frame part 26 and overlaps the circuit board sections of the main board 12 that are seated in the receptacles 40. In this way, the main board 12 is secured against movement parallel to the insertion direction and held securely in the frame 25.

[0088] As can be clearly seen from the drawings, the second frame part 27 is also secured against slippage perpendicular to the insertion direction X by a form-congruent insertion of the frame corner areas on the side walls 15 of the lower shell 13. Naturally, the module recesses 44 are also aligned with the window-like recesses 17 of the side walls 15.

[0089] Now, deviating from the insertion direction X, the connection modules 28 are inserted into the window-like recesses 17. For this purpose, the connection modules 28 are inserted into the window-like recesses 17 from the outside, perpendicular to the insertion direction X, until the outer end cap of the connection module 28 abuts the frame webs 18 of the recess 17 and limits the insertion process. Ideally, the connection modules 28 are pre-fixed in this position.

[0090] The module retaining elements 30 are now inserted in the corner areas of the side walls 15 in the X direction. The contours of the module retaining elements 30 are designed to be complementary to the side walls 15 and their respective corner areas. When the module retaining elements 30 are inserted in the X direction, the springs 42 of the module retaining elements 30 engage in the grooves 43 of the connection modules 28. This prevents the connection modules 28 from slipping out of the window-like recesses 17.

[0091] Likewise, the optional fans 31 are inserted into the frame 25, in particular into the upper frame part 27, only in the X direction.

[0092] As already explained in the previous views, the module holders 30 and, if required, the optional fans 31 are dimensioned in height such that the upper shell 20, which is then simply inserted in the X direction, sits snugly on the module holders 30. The module holders 30 themselves sit on the frame 25, so that all components inserted in the X direction as well as perpendicular to the X direction are secured against movement from their respective intended positions. The different securing options for the module holders 30 will be discussed later.

[0093] In the specific example embodiment (see enlarged section) Fig. 15) The module holder 30 is secured against movement from its intended position perpendicular to the insertion direction X by an interaction between the side wall 15, the lower shell 13, and the tongue-and-groove connection between the connection module 28 and the module holder 30. For this purpose, the lower shell 13, or more precisely its side wall 15, has a locking projection 50 that faces into the interior of the housing. The module holder 30 engages this locking projection 50 with its end furthest from the spring 42. Consequently, this end, furthest from the spring 42, cannot move towards the interior of the housing perpendicular to the insertion direction X.

[0094] The spring-loaded end of the module holder 30 sits in the groove 43 of the connection module 28. The connection module 28 is prevented from being pushed into the housing space by the frame webs 18. Consequently, the spring-loaded end of the module holder 30 cannot be moved from its intended position perpendicular to the insertion direction X. In this way, the module holder 30 is secured in the housing 10 by a positive fit, according to the present embodiment.

[0095] In contrast to the one in the Fig. In the embodiment shown in Figures 1 to 15, the module retaining part 30 can also be held in the lower shell 13 by means of differently designed positive locking connections. For example, Figure 1 shows... Fig. 16 a dovetail joint between the side wall 15 and the module holding part 30, wherein Fig. 16, based on the preceding figures, merely a schematic representation of a corner area of ​​the housing 10 according to Fig. 15 represents. The circumferential angle of the adjacent cylindrical surfaces of the housing side wall 15 and the module holding part 30 can be kept <=180° in such a solution.

[0096] Alternatively, the circumferential angle β of the adjacent lateral surfaces of the module holder 30 and the side wall 15 may have a value of > 180°. In this way, the side wall 15 surrounds the module holder 30 and thus secures it against movement perpendicular to the insertion direction X.

[0097] In contrast to the previously described method for assembling the computer housing 10 or for assembling the computer 11, the connection module 28 can also be inserted into the lower shell 13 only in the X direction. For this purpose, the connection module 28 can be inserted into slots 36 of the side walls 15 of the lower shell 13 (not shown in the exemplary embodiment), similar to the side walls 22 of the upper shell 20. Whether and to what extent module retaining elements 30 then additionally secure the connection module 28 depends on the technical characteristics of the connection module 28. In particular, if the outer cover is merely glued on but not permanently connected to a terminal block behind it, additional securing of the connection module 28 by means of the module retaining element 30 is advisable.Although the design of the module holding part 30 shown in the specific embodiment can also be used in this case, a design in the would be more appropriate here. Fig. 16 or Fig. 17 schematically depicted, differing designs.

[0098] Overall, the invention discloses a novel, highly advantageous computer housing 10 or a correspondingly advantageous computer 11, in which assembly is extremely simple and, above all, fully automated by predominantly or exclusively using the plug-in direction X as the assembly direction. The modular design, without additional fixings for the individual housing components using screws, etc., ensures high recyclability of the individual components as well as easy replacement of defective and / or technically obsolete components. In this way, a durable housing with a long service life is created. Furthermore, disassembly is just as easy as assembly, thus ensuring high recyclability. REFERENCE MARK LIST 10 computer cases 11 computers 12 Mainboard 13 Lower shell 14 Base plate 15 side wall of 13 16 free space 17 window-like recesses 18 frame bridge 19 feet 20 Upper shell 21 Cover plate 22 side wall of 20 23 ventilation grilles 24 PCB holder 25 frames 26 first frame part 27 second frame part 28 connection module 29 Plug connector 30 Module holding part 31 fans 32 Auxiliary board 33 Switching element 34 grid-like hole structure 35 wall edge areas 36 slots 37 first exception 38 Material advantage 39 Material recess 40 recordings for 12 41 spacer 42 springs 43 Nut 44 Module recess of 25 / 26 / 27 45 Movement space 46 second exclusion 47 second material advantage 48 bore 49 fixing pins 50 safety margin X Plug direction

Claims

[1] Computer case (10) - with at least one lower shell (13) and one upper shell (20), - with side walls (15, 22) as part of the lower shell (13) and / or as part of the upper shell (20), - with a base plate (14) as part of the lower shell (13) and a cover plate (21) as part of the upper shell (20), - with a receiving space of the computer housing (10), which is surrounded by the lower shell (13) and the upper shell (20), - with plug-in connectors for peripheral devices, which are grouped together in at least one connection module (28), - with at least one housing recess (17) in which the connection module (28) is seated, - with at least one module holder (30) which holds the at least one connection module (28) in the housing (10), - with at least one circuit board holder (24) which holds a main board (12) in the housing (10), characterized by , that - the lower shell (13) and the upper shell (20) are placed on top of each other in only one insertion direction (X) for housing assembly, - the module holder (30) and the circuit board holder (24) are also inserted into the housing (10) in their holding position only along the insertion direction (X), - the module holder (30) and the circuit board holder (24) are fixed in their effective position by the upper shell (20) which sits on the lower shell (13). [2] Computer housing (10) according to claim 1, characterized by , that the lower shell (13) and the upper shell (20) are at least pre-fixed to each other by friction and / or are finally fixed to each other by magnetic force. [3] Computer housing (10) according to claim 1 or 2, characterized by , that the circuit board holder (24) is designed as a base plate-parallel frame (25) which has receptacles (40) facing the top plate (21) for a main board (12), [4] Computer housing (10) according to claim 3, characterized by , that the frame (25) is formed in two parts, - with a first frame part (26) parallel to the base plate, in which a first recess (37) for the main board (12) is provided and in whose frame edge areas surrounding the first recess (37) material recesses (39) for receiving circuit board edge sections are inserted, - with a second frame part (27) parallel to the base plate, which also has a second recess (46) manufactured with undersize for the main board (12) and whose frame edge areas surrounding the second recess (46) are provided for covering circuit board edge sections, - wherein the second frame part (27) sits on top of the first frame part (26) and both frame parts are designed to hold the main board (12) between each other. [5] Computer housing (10) according to claim 3 or 4, characterized by , that the frame (25) has spacers (41) pointing towards the base plate (14), which space the frame (25) away from the base plate (14). [6] Computer housing (10) according to claim 5, characterized by , that the frame (25) has a shock-absorbing elasticity that reduces the vibrations acting on a mainboard (12) mounted on the frame (25). [7] Computer enclosure (10) according to any of the preceding claims, characterized by , that the module holder (30) is held in a form-fitting manner in the computer housing (10) perpendicular to the insertion direction (X). [8] Computer housing (10) according to claim 7, characterized by , that the module holder (30) and the computer housing (10), in particular a side wall section of lower shell (13) and / or upper shell (20), form corresponding positive locking parts for holding the module holder (30). [9] Computer housing (10) according to claim 8, characterized by, that a circumferential contour of the module holding part (30) is encompassed by a side wall section of lower shell (13) and / or upper shell (20). [10] Computer housing (10) according to claim 9, characterized by , that - the module holding part (30) is a support extending longitudinally to the insertion direction (X), with a lateral surface section that is cylindrically shaped at a circumferential angle of more than 180 degrees, - a side wall section of the lower shell (13) and / or upper shell (20) surrounds the cylindrical lateral surface section of the module holding part (30) in a form complementary manner. [11] Computer enclosure (10) according to any of the preceding claims, characterized by , that the connection module (28) is inserted transversely to the plugging direction (X) into the housing recess, in particular a window-like recess (17) in a side wall (15, 22). [12] Computer enclosure (10) according to any of the preceding claims, characterized by, that the connection module (28) is provided with a groove (43) extending in the plug-in direction (X) and the module retaining part (30) with a spring (42) aligned in the plug-in direction (X), wherein the spring (42) engages in the groove (43) to secure the connection module (28) in the housing (10). [13] Computer housing (10) according to claims 7 and 11 and 12, characterized by , that the engagement of the spring (42) of the module holder (30) in the groove (43) of the connection module (28) is part of the positive locking support of the module holder (30) in the computer housing (10) acting transversely to the insertion direction (X). [14] Computer housing (10) according to claims 8 and 13, characterized by , that a positive locking between a side wall section and the module holding part (30) on the one hand and the engagement of groove (43) and tongue (42) on the other hand together form the positive locking fixing of the module holding part (30) transverse to the insertion direction (X). [15] Computer (11) with a computer housing (10) according to any one of claims 1 to 14. [16] Method for assembling a computer using a computer case according to any one of claims 1 to 14, characterized by , that - a plug-in direction (X) is provided for assembly and this plug-in direction (X) is orthogonal to the base plate (14) of the base shell (13), - the printed circuit board holder (24), the main board (12), the module holder (30) and the upper shell (20) are inserted into the lower shell (13) exclusively in the plug-in direction (X). [17] Method according to claims 11 and 16, characterized by , that - the connection module (28) is inserted transversely to the plugging direction (X) into a window-like recess (17) of a side wall (15) and is secured against penetration of the recess (17) by a frame web, - on the inside, a spring (42) of the module holder (30) oriented in the direction of insertion (X) engages in a groove (43) of the connection module (28) oriented in the direction of insertion (X). [18] Method according to claim 16, characterized by , that the connection module (28) is also inserted into the lower shell (13) in the plug-in direction (X).

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