ELECTRICAL DEVICE, IN PARTICULAR CONVERTER OR CONVERTER MOTOR, WITH A COVER PART AND SIGNAL ELECTRONICS

Description

[0001] The invention relates to an electrical device, in particular a converter or converter motor, with a cover part and signal electronics.

[0002] It is generally known that signal electronics can be arranged in a housing.

[0003] From the EP 1 104 080 A2 The closest state of the art is a cover for a motor connection box.

[0004] From the DE 10 2005 032075 A1 is a memory with data synchronization from and for a drive controller of a machine.

[0005] From the DE 10 2010 047762 A1 an inverter motor is known.

[0006] The invention is therefore based on the object of designing an electrical device that can be used for various applications and / or can be repaired with little effort.

[0007] According to the invention, the object is achieved in the electrical device according to the features specified in claim 1.

[0008] Important features of the invention in the device and a method are that the electrical device, in particular converter or converter motor, is provided with a cover part and signal electronics, wherein the signal electronics comprises a first circuit board and a memory unit electrically connected to the first circuit board, in particular by means of an electrical plug connection, wherein the memory unit comprises a switch unit, in particular a selector switch, in particular a DIP switch, in particular wherein the signal electronics, in particular the operating mode of the signal electronics, functions as a different AS-Interface slave profile depending on the switch position of the switch unit and / or as a different AS-Interface slave type depending on the switch position of the switch unit.

[0009] The advantage here is that the operating mode can be specified by the switch position of the switch unit. This means that two different operating modes do not require two different

[0010] Electrical devices are not manufactured individually, but rather the operating mode can be specified by specifying the switch position. A disadvantage of the invention is that a switch unit is required. However, this only requires the production of a single variant, rather than two different versions. This reduces the cost to such an extent that the additional cost of the switch unit is more than compensated for.

[0011] The operating mode that can be provided here is, in particular, the operating mode of an AS-Interface slave profile or type.

[0012] In an advantageous embodiment, a wall part is connected to the cover part, wherein the first circuit board is arranged between the wall part and the cover part, in particular wherein the first circuit board is connected to the cover part. Advantageously, the wall part and the cover part protect a spatial area in which the first circuit board is arranged. Thus, the circuit board, including the components of the signal electronics mounted thereon, are correspondingly protected. However, the wall part can also be provided as an electrical and / or thermal insulation means. In this way, the signal electronics can be thermally separated from the power electronics.

[0013] In an advantageous embodiment, the wall part is made of plastic and / or the cover part is made of metal, in particular as a die-cast aluminum part, in particular wherein the wall part functions as a thermal barrier, in particular as a thermal barrier between the signal electronics and an electric motor, to whose housing part the cover part is connected. It is advantageous in this case that the cover part can be connected to a housing part of an electric motor or to a lower part connected to a housing part of an electric motor, in which lower part power electronics can also be arranged. Thus, an inverter motor can be formed in which the signal electronics can be cooled via the cover part and the power electronics via the lower part and / or the housing part.Thus, the electric motor, in particular its stator winding, together with the power electronics can be cooled together via the housing part and the lower part if no further thermal barrier is provided in between.

[0014] According to the invention The storage unit has a further printed circuit board accommodated in a housing of the storage unit, the housing having a lower part and an upper part connected to the lower part. Advantageously, the further printed circuit board is arranged in a protected manner, and a guided electrical plug-in connection of the further printed circuit board to the first printed circuit board is possible.

[0015] In an advantageous embodiment, at least two elastically deflectable regions are formed on the lower part, in particular arranged on opposite sides of the lower part, each of which has a first locking lug formed thereon, in particular for a positive connection. Advantageously, the regions can be elastically moved toward one another, thus allowing the storage unit to be inserted into corresponding recesses in the wall part and the first circuit board.

[0016] In an advantageous embodiment, a second circuit board is arranged between the wall part and the cover part, in particular wherein the second circuit board is arranged parallel to the first circuit board and / or spaced apart from the first circuit board. This advantageously allows for the provision of additional signal electronics. Furthermore, the second circuit board can be arranged between the wall part and the first circuit board.

[0017] In an advantageous embodiment, at least one pin region is formed on the lower part, which is inserted into a recess in the first circuit board, in particular for guiding the memory unit during the plug-in connection of the additional circuit board, in particular of conductor tracks of the additional circuit board acting as contacts, to the first circuit board, in particular to a connector part mounted on the first circuit board. This is advantageous in that tilting during the plug-in connection of the additional circuit board to the first circuit board can be avoided.

[0018] In an advantageous embodiment, the first printed circuit board is equipped with a connector part, in particular a socket strip, The additional circuit board of the storage unit is plug-connected to the connector part, in particular, the conductor tracks arranged on the additional circuit board function as contacts that are electrically detachably connected to contacts of the connector part. This allows for simple manufacturing.

[0019] In an advantageous embodiment, the elastically deflectable regions have a grooved, knurled, and / or roughened area on their side facing away from the other circuit boards, particularly to increase grip. This is advantageous because it enables safe and easy handling during production.

[0020] In an advantageous embodiment, the locking lug rests on the side of the wall part facing the first circuit board. This advantageously allows the storage unit to be inserted through a recess in the wall part while being guided by the pin areas on the first circuit board, and to be positively delimited on the wall part after the plug connection between the further and the first circuit board has been established.

[0021] In an advantageous embodiment, a locking lug formed, in particular molded, on the lower part and / or upper part rests against the side of the wall part facing away from the first circuit board. Advantageously, the wall part is positively connected to the storage unit.

[0022] In an advantageous embodiment, the additional circuit board has recesses, in particular notches, into which elastically deformable locking lugs formed, in particular molded, on the upper or lower part protrude. This is advantageous in that the storage unit is held in a form-fitting manner on the additional circuit board.

[0023] In an advantageous embodiment, the locking lug formed on the lower and / or upper parts has a bevel, which decreases in distance from the other circuit board as the distance from the pin area(s) increases. This is advantageous because the storage unit can be positively secured to the wall part.

[0024] In an advantageous embodiment, the respective locking lug formed on the elastically deflectable region has an insertion bevel, which has an increasing distance from the further circuit board with increasing distance from the pin area(s). This is advantageous in that a limit can be achieved on the wall section.

[0025] In an advantageous embodiment, the additional circuit board is equipped with the switch unit and a data storage device, particularly one with long-term stability. This is advantageous because the parameters of one electrical device can be easily transmitted to another.

[0026] In an advantageous embodiment, a centering pin is formed on the lower part and / or upper part, which is spaced from the pin area(s) and protrudes into a further, in particular continuous, recess in the first circuit board. This is advantageous in that improved centering of the storage unit is enabled.

[0027] According to the invention The upper part is connected to the lower part in a form-fitting manner, particularly by means of a clip connection. The advantage of this is that a simple but secure connection can be achieved.

[0028] In an advantageous embodiment, the wall section has recesses through which input elements, in particular potentiometers, rotary switches, or other DIP switches, can be operated with a tool. This is advantageous because, on the one hand, the wall section acts as an insulation element, while, on the other hand, still allowing the input elements to be operated through the wall section.

[0029] In an advantageous embodiment, at least one potentiometer is arranged on the first circuit board, and the cover part has a recess covered by a closure part, in particular a locking screw. The potentiometer can be operated by means of a screwdriver that protrudes through the recess when the locking screw is removed. Advantageously, the potentiometer can be arranged in a sealed space and is accessible for operation by loosening, i.e., unscrewing, the locking screw.

[0030] Further advantages emerge from the dependent claims. The invention is not limited to the combination of features in the claims. Further possible combinations of claims and / or individual claim features and / or features of the description and / or the figures will become apparent to those skilled in the art, particularly from the problem and / or the problem posed by comparison with the prior art.

[0031] The invention will now be explained in more detail using schematic illustrations: In the Figure 1 is a plan view of a cover part 9 of an inverter motor according to the invention. Figure 2 A potentiometer 2 which can be mounted on a first printed circuit board 70 accommodated in the cover part 9 is shown in an oblique view. In the Figure 3 A memory unit 6 inserted into the first circuit board 70 is shown in an oblique view. Figure 4The storage unit 6 is shown partially exploded in an oblique view. Figure 5 The locking of the storage unit 6 to a wall part 7 acting as an insulating means is illustrated in a sectional view. Figure 6 is an excerpt from the Figure 5 shown enlarged.

[0032] As shown in the figures, the cover part 9 is designed in a pot-like manner, so that a first printed circuit board 70 is received in it and pressed onto the cover part 9 by means of screws which are screwed into threaded holes in the cover part 9.

[0033] The cover part 9 is preferably made of metal, in particular die-cast aluminum.

[0034] A wall part 7, preferably made of plastic, is also fastened to the cover part 9 and essentially covers the circuit board 70, so that the circuit board 70 is arranged in the space bordered by the wall part 7 and the cover part 9.

[0035] The circuit board 70 is equipped with electronic components and a rotary switch 1, which is accessible and / or operable, in particular rotatable, through a recess in the wall part 7. However, the cover part 9 must first be removed from a lower part, which is attached to a motor housing or is formed integrally with it.

[0036] In addition, the circuit board 70 is equipped with a first and second potentiometer (2, 3), which are arranged on the circuit board 70 in such a way that actuation of the respective potentiometer (2, 3) is possible when a locking screw 10 is removed, which is arranged in a recess in the cover part 9. Thus, a tool, such as a screwdriver, can then be passed from the external environment through the recess in the cover part 9 to the potentiometer (2, 3), and the potentiometer (2, 3) can be actuated.

[0037] The storage unit 6 has a lower part 37 with pin regions 30 formed integrally, in particular one-piece, on the lower part 37, in particular spaced apart from one another, and an upper part 31.

[0038] Preferably, the upper part 31 and the lower part 37 are made of plastic.

[0039] DIP switches (4, 5) mounted on the circuit board 70 can also be operated through the recess in the wall part 7.

[0040] A further circuit board 36 is arranged in the memory unit 6, which is equipped with at least one long-term stable data memory and a DIP switch 35.

[0041] Thus, parameters for commissioning the converter can be stored in the memory unit 6 and quick commissioning can be carried out.

[0042] The storage unit 6 has a lower part 37 and an upper part 31, which are connected to each other, in particular clip-connected.

[0043] Pin areas 30 are formed on the lower part 37, allowing a guided connection of the memory unit 6. The guiding takes place during production, i.e., when the memory unit 6 is inserted into the first circuit board 70, by inserting the pin areas 30 into corresponding recesses in the first circuit board 70.

[0044] The circuit board 36 has notches arranged opposite one another on two sides, into which resiliently deflectable projections formed on the lower part protrude toward the circuit board 36 engage. Thus, the circuit board 36 is positively received in the storage unit 6.

[0045] On the lower part 37, elastically deflectable regions 33 are formed on two opposite sides, which regions have a locking lug 32 and a grooved region 34. The elastically deflectable regions 33 can be moved towards one another with one hand and can be elastically prestressed in the process. The grooved regions 34 prevent the fingers of this hand from slipping. During the elastic deflection of the regions 33, the memory unit 6 is guided for insertion into the cover part 9 in the direction of the longest extent of the pin regions 30 with the pin regions 30 through a recess in the wall part 7 and through at least two recesses in the first circuit board 70. In this way, centering towards the first circuit board 70 is possible, so that conductor tracks designed as contacts on the further circuit board 36 of the memory unit 6 can be inserted into a connector part, in particular a socket part, mounted on the circuit board 70, in particular without tilting.The plug connection of the further circuit board 36 with the first circuit board 70 can therefore be carried out without jamming due to the guidance by the pin areas 30 arranged in advance. First, the pin areas 30 penetrate the recesses of the first circuit board 70 when the memory unit 6 is inserted and only then is the electrical plug connection effected.

[0046] Thus, the circuit board 36 is aligned perpendicular to the first circuit board 70 and the second circuit board 71 arranged parallel to the first circuit board 70 as well as the area of the wall part 7 surrounding the storage unit 6.

[0047] A simple connection can be carried out by means of the electrical plug connection between the first circuit board 70 and the further circuit board 36 of the storage unit 6. For this purpose, the positive connection of the further circuit board 36 in and with the lower part 37 of the storage unit 6 and their positive, play-free connection, in particular

[0048] Clip connection, by means of the elastically deflectable areas 33 with the wall part 7, the storage unit 6. The two pin areas 30 formed on the lower part 37 center the storage unit 6 on the first circuit board 70.

[0049] A centering pin 39 is additionally formed on the lower part 37 and projects into a correspondingly shaped recess in the first circuit board 70. Thus, centering of the storage unit 6 is easy to implement.

[0050] Further locking lugs 38 are formed on the upper part 31 of the storage unit 6, which are locked to the wall part 7, which has corresponding projection areas shaped to form a snap-in connection with the locking lugs 38. The locking lugs 38 have insertion bevels, the bevel of which, however, is opposite to the bevels formed on the locking lugs 32 of the elastic areas 33.

[0051] Thus, when the storage unit 6 is inserted, the elastic regions 33 are elastically compressed toward the lower part 37, and the locking lugs 32 traverse the recess arranged in the wall part 7. After the elastically deflectable regions 33 are released, the locking lugs 32 rest on the underside, i.e., the side facing the first circuit board 70, of the wall part 7, thus blocking retraction of the storage unit 6. Furthermore, the locking lugs 38 rest on the other side, in particular, the upper side, of the wall part 7. The wall part 7 is thus delimited between the locking lugs 38 formed on the lower part 37 and the locking lugs 38 formed on the upper part 31. If pressed together in a different way, the storage unit 6 is held in a form-fitting manner on the wall part 7.

[0052] The connecting line of the two locking lugs 38 is aligned perpendicular to the connecting line of the two locking lugs 32, since the locking lugs 38 and 32 are arranged on different sides of the storage unit 6.

[0053] A DIP switch 35 is mounted on the circuit board 36 of the memory unit 6. This switch can be used to configure various parameters that determine the operation, particularly the operating mode, of the signal electronics mounted on the circuit boards 70 and 71. Thus, depending on the switch position of the DIP switch 35, the signal electronics functions as a different AS-Interface slave type and / or operates with a different AS-Interface slave profile depending on the switch position of the DIP switch 35. Depending on the switch position of the DIP switch 35, a different operating mode of the signal electronics housed in the cover part 9 is activated when the memory unit 6 is inserted.

[0054] The advantage here is that no separate electrical devices, especially converters, need to be developed to implement different AS-Interface slave profiles or types, and that the cover part 9, with its integrated signal electronics, can be used for various profiles and types. For this purpose, only DIP switch 35 needs to be provided, and the switch position of DIP switch 35 is used to set the desired AS-Interface slave profile or type.

[0055] This allows for a very quick and easy replacement during a repair by replacing the signal electronics including memory unit 6 and adopting the DIP switch position.

[0056] The at least two notches 40 are arranged on the circuit board 36 at two opposite edges of the circuit board 36.

[0057] The cover part 9 is preferably made of plastic. Alternatively, a die-cast aluminum version is also possible.

[0058] The wall part 7 is preferably made of an insulating plastic and is thus also able to function as a thermal barrier.

[0059] According to the invention, an electrical device is designed as an inverter motor, wherein the signal electronics are arranged in a cover part 9, into which a memory module designed as a memory unit 9 can be inserted by means of a latching connection or clip connection, wherein a latching or clip connection is provided with the wall part 7, which is connected to the cover part 9 by means of screws or a latching connection, in particular like the first printed circuit board 70.

[0060] In further embodiments of the invention, the cover part is placed on a lower part and tightly connected, with the lower part being arranged on a housing part of an electric motor and tightly connected. Thus, a compact design of the electrical device as an inverter motor is possible. List of reference symbols

[0061] 1 Rotary switch 2 Potentiometer 3 Potentiometer 4 DIP switch 5 DIP switch 6 Memory unit 7 Wall part, in particular thermal barrier 8 Connector part 9 Cover part 10 Locking screw, in particular made of plastic 20 Leg 21 Mechanical interface for positive engagement of a tool 30 Pin area 31 Upper part 32 Locking lug 33 Elastic area of the lower part 37 34 Ribbed area 35 DIP switch 36 Printed circuit board 37 Lower part 38 Locking lug 39 Centering bolt 40 Notch 70 First printed circuit board 71 First printed circuit board

Claims

1. Electrical device, in particular a converter or a converter motor, comprising a cover part (9) and signal electronics, the signal electronics having a first circuit board (70) and a storage unit (6) electrically plug-connected to the first circuit board (70), in particular by means of an electrical plug connection, characterised in that the storage unit (6) has a switch unit, in particular a selector switch, in particular a DIP switch (4, 5, 35), the signal electronics, in particular the operating mode of the signal electronics, acting in particular as a different AS-Interface slave profile depending on the switch position of the switch unit and / or as a different AS-Interface slave type depending on the switch position of the switch unit, the storage unit (6) having a further circuit board (36) received in a housing of the storage unit (6), the housing having a bottom part and a top part (31) connected to the bottom part, at least one pin region (30) being formed on the bottom part and being inserted into a cut-out in the first circuit board (70), in particular in order to guide the storage unit (6) in a leading manner when plug-connecting the further circuit board (36), in particular conducting tracks of the further circuit board (70) which act as contacts, to the first circuit board (70), in particular to a plug connector part (8) fitted on the first circuit board (70), the top part (31) being interlockingly connected to the bottom part by means of a clip connection.

2. Electrical device according to claim 1, characterised in that a wall part (7) is connected to the cover part (9), in particular by means of screws or by means of a latching connection, the first circuit board (70) being arranged between the wall part (7) and the cover part (9), the first circuit board (70) in particular being connected to the cover part (9).

3. Electrical device according to any of the preceding claims, characterised in that the wall part (7) is made of plastics material and / or the cover part (9) is made of metal, in particular is produced as an aluminium diecast part, the wall part (7) acting in particular as a heat barrier, in particular as a heat barrier between the signal electronics and an electric motor, to the housing part of which the cover part (9) is connected.

4. Electrical device according to any of the preceding claims, characterised in that at least two resiliently deflectable regions are formed on the bottom part, in particular are arranged on opposite sides of the bottom part, a first snap-in lug (32) being formed on each of said regions, in particular to establish an interlocking connection.

5. Electrical device according to any of the preceding claims, characterised in that a second circuit board is arranged between the wall part (7) and the cover part (9), the second circuit board in particular being arranged in parallel with the first circuit board (70) and / or at a distance from the first circuit board (70).

6. Electrical device according to any of the preceding claims, characterised in that the first circuit board (70) is fitted with a plug connector part (8), in particular a socket connector, the further circuit board (36) of the storage unit (6) being plug-connected to the plug connector part (8), conducting tracks arranged on the further circuit board (36) acting in particular as contacts that are releasably electrically connected to contacts of the plug connector part (8).

7. Electrical device according to any of the preceding claims, characterised in that on their side facing away from the further circuit board (36), the resiliently deflectable regions have a rippled, knurled and / or roughened region, in particular for increasing grip.

8. Electrical device according to any of the preceding claims, characterised in that the snap-in lug (32) abuts the side of the wall part (7) that faces the first circuit board (70).

9. Electrical device according to any of the preceding claims, characterised in that a snap-in lug (32) formed, in particular moulded, on the bottom part and / or on the top part (31) abuts the side of the wall part (7) that faces away from the first circuit board (70).

10. Electrical device according to any of the preceding claims, characterised in that the further circuit board (36) has recesses, in particular indentations, into which there protrude elastically deformable snap-in lugs formed, in particular moulded, on the top part (31) or on the bottom part.

11. Electrical device according to any of the preceding claims, characterised in that the snap-in lug (32) formed on the bottom part and / or on the top part (31) has a cant whose distance from the further circuit board (36) decreases as the distance from the pin region(s) (30) increases.

12. Electrical device according to any of the preceding claims, characterised in that the snap-in lug (32) formed on each resiliently deflectable region has an insertion bevel whose distance from the further circuit board (36) increases as the distance from the pin region(s) (30) increases.

13. Electrical device according to any of the preceding claims, characterised in that the further circuit board (36) is fitted with the switch unit and a data store that in particular has long-term stability.

14. Electrical device according to any of the preceding claims, characterised in that a centring bolt spaced apart from the pin region(s) (30) is formed on the bottom part and / or on the top part (31) and protrudes into a further cut-out, in particular a through-going cut-out, in the first circuit board (70), and / or in that the wall part (7) has cut-outs through which input elements, in particular potentiometers (2), rotary switches (1) or further DIP switches (4, 5, 35), can be operated using a tool.

15. Electrical device according to any of the preceding claims, characterised in that at least one potentiometer (2) is arranged on the first circuit board (70), and the cover part (9) has a cut-out that is covered by a closure part, in particular a screw plug (10), the potentiometer (2) being operable by means of a screwdriver that protrudes through the cut-out when the screw plug (10) is removed.