Electrical device with cover and signal electronics, in particular frequency converter or frequency converter motor

Abstract

The present invention relates to an electrical device, in particular a frequency converter or a frequency-converter motor, comprising a cover and a signal electronics system, wherein the signal electronics system comprises a first printed circuit board and a storage unit which is electrically plug-connected to the first printed circuit board, in particular by means of an electrical plug connection, wherein the storage unit comprises a switching unit, in particular a selector switch, in particular a DIP switch.

Description

Technical Field

[0001] The invention relates to an electrical device, in particular a frequency converter or a frequency-converter motor, comprising a cover and signal electronics. Background Art

[0002] As is known, signal electronics can be arranged in a housing. Summary of the Invention

[0003] The object of the present invention is therefore to provide an electrical device which can be used for different applications and / or which can be repaired with little effort.

[0004] An important feature of the invention with regard to the device and the method is that the electrical device, in particular a frequency converter or a frequency-converter motor, is provided with a cover and signal electronics.

[0005] The signal electronics system comprises a first printed circuit board and a storage unit which is electrically plug-connected to the first printed circuit board, in particular by means of an electrical plug connection.

[0006] The storage unit has a switching unit, in particular a selection switch, in particular a DIP switch,

[0007] In particular, the signal electronics, in particular the operating mode of the signal electronics, acts as different AS-Interface slave profiles (AS-Interface-Slave-Profil) depending on the switch position of the switching unit and / or as different AS-Interface slave types (AS-Interface-Slave-Typ) depending on the switch position of the switching unit.

[0008] The advantage here is that the operating mode can be preset by the switch position of the switching unit. Thus, it is not necessary to manufacture two different electrical devices for two different operating modes; instead, the operating mode can be preset by presetting the switch position. A disadvantage of this invention is that a switching unit is required. However, this requires only one variant, eliminating the need for two different variants. This reduces costs, significantly compensating for the additional costs of the switching unit.

[0009] In particular, the operating mode of the AS-Interface slave configuration or type can be set as the operating mode.

[0010] In an advantageous embodiment, the wall element is connected to the cover element.

[0011] The first circuit board is arranged between the wall member and the cover member; in particular, the first circuit board is connected to the cover member. This advantageously protects the spatial region in which the first circuit board is arranged, together with the cover member. The circuit board and the components of the signal electronics mounted thereon are thus appropriately protected. However, the wall member can also serve as an electrical and / or thermal insulator. This allows the signal electronics to be thermally decoupled from the power electronics.

[0012] In an advantageous embodiment, the wall part is made of plastic and / or the cover part is made of metal, in particular as an aluminum die-cast part.

[0013] In particular, the wall element functions as a thermal insulator, particularly between the signal electronics and the motor, while the cover element is connected to the motor's housing element. This advantageously allows the cover element to be connected to the motor's housing element or to a lower element connected to the motor's housing element, in which the power electronics may also be located. This allows for a variable-frequency motor in which the signal electronics can dissipate heat via the cover element, while the power electronics can dissipate heat via the lower element and / or the housing element. Therefore, if no additional thermal insulator is provided between the motor and the power electronics, the motor, particularly its stator windings, can be dissipated heat together with the power electronics via the housing element and the lower element.

[0014] In an advantageous embodiment, the storage unit has a further printed circuit board which is accommodated in the housing of the storage unit.

[0015] The housing has a bottom part and an upper part connected to the bottom part. Advantageously, the other circuit board is arranged in a protected manner and an electrical plug connection of the guide of the other circuit board to the first circuit board can be implemented.

[0016] 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.

[0017] On described at least two areas, respectively be configured with first locking projection, in particular be used for form-fitting connection.At this advantage, these areas can be elastically moved toward each other and thus storage unit can be introduced into the corresponding recess of wall part and first circuit board.

[0018] In an advantageous embodiment, a second circuit board is arranged between the wall element and the cover element.

[0019] In particular, the second printed circuit board is arranged parallel to the first printed circuit board and / or spaced apart from the first printed circuit board. This has the advantage that further signal electronics can be provided. Furthermore, the second printed circuit board can be arranged between the wall element and the first printed circuit board.

[0020] In an advantageous embodiment, at least one pin region is formed on the lower part, which engages a recess in the first printed circuit board and serves, in particular, to guide the storage unit when plugging the further printed circuit board, in particular the conductor tracks of the further printed circuit board serving as contacts, to the first printed circuit board, in particular to a plug connector mounted on the first printed circuit board. This has the advantage that tilting of the further printed circuit board during the plug-in connection with the first printed circuit board can be avoided.

[0021] In an advantageous embodiment, the first circuit board is equipped with a plug connector, in particular a socket strip.

[0022] The other circuit board of the storage unit is plug-connected to the plug connector.

[0023] In particular, the conductor tracks arranged on the further circuit board act as contacts, which are electrically separably connected to the contacts of the plug connector.

[0024] In an advantageous embodiment, the elastically deflectable region has a grooved, knurled and / or roughened region on its side facing away from the other circuit board, in particular for improving the anti-slip properties. This has the advantage that reliable and simple handling can be achieved during production.

[0025] In an advantageous embodiment, the locking projection rests on the side of the wall element facing the first printed circuit board. This has the advantage that the storage unit can be inserted through the recess in the wall element, guided during insertion by the pin area on the first printed circuit board, and can be positively secured to the wall element after the plug-in connection between the further printed circuit board and the first printed circuit board has been established.

[0026] In an advantageous embodiment, the locking projection formed on, in particular formed on, the lower part and / or the upper part abuts against the side of the wall part facing away from the first circuit board. Advantageously, the wall part is connected to the storage unit in a form-fitting manner.

[0027] In an advantageous embodiment, the further circuit board has a recess, in particular a cutout, into which an elastically deformable locking projection formed on, in particular formed on, the upper or lower part extends. This has the advantage that the storage unit is held in a form-fitting manner on the further circuit board.

[0028] In an advantageous embodiment, the locking projection formed on the lower part and / or the upper part has an inclined surface, the distance of which from the further circuit board decreases as the distance from the inclined surface to the pin area or areas increases. This has the advantage that the storage unit can be fixed to the wall part in a form-fitting manner.

[0029] In an advantageous embodiment, the respective locking projection formed on the elastically deflectable area has an insertion bevel, the distance of which from the further circuit board increases as the distance from the one or more pin areas increases. This has the advantage that a restriction on the wall element can be achieved.

[0030] In an advantageous embodiment, the further printed circuit board is equipped with a switching unit and a particularly long-term stable data memory. This has the advantage that the parameters of the electrical device can be forwarded to another electrical device in a simple manner.

[0031] In an advantageous embodiment, a centering pin is formed on the lower part and / or the upper part, which is spaced apart from the pin area or areas and projects into another, in particular continuous, recess of the first printed circuit board. This has the advantage that an improved centering of the storage unit can be achieved.

[0032] In an advantageous embodiment, the upper part is connected to the lower part in a form-fitting manner, in particular by means of a clip connection. The advantage here is that a simple but reliable connection can be implemented.

[0033] In an advantageous embodiment, the wall element has a recess through which an input element, in particular a potentiometer, a rotary switch or another DIP switch, can be actuated using a tool. This has the advantage that, on the one hand, the wall element acts as an insulator, but, on the other hand, actuation of the input element through the wall element is still possible.

[0034] In an advantageous embodiment, at least one potentiometer is arranged on the first circuit board, and the cover has a recess which is covered by the locking element, in particular the locking screw.

[0035] The potentiometer can be manipulated by means of a screwdriver which is inserted through the notch 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.

[0036] Further sensible combinations of features of the description and / or of the drawings will appear to a person skilled in the art, in particular arising from the objectives proposed and / or from a comparison with the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Now the present invention is described in detail according to the schematic diagram:

[0038] exist Figure 1 FIG. 4 shows a top view of a cover 9 of a variable frequency motor according to the present invention.

[0039] exist Figure 2 , a potentiometer 2 which can be mounted on a first printed circuit board 70 accommodated in a cover 9 is shown in an oblique view.

[0040] exist Figure 3 The storage unit 6 inserted into the first circuit board 70 is shown in an oblique view.

[0041] exist Figure 4 The storage unit 6 is shown in a partially exploded oblique view.

[0042] exist Figure 5 The latching of the storage unit 6 to the wall part 7 serving as an insulating element is illustrated in a sectional view.

[0043] exist Figure 6 Shown enlarged Figure 5 Part of. DETAILED DESCRIPTION

[0044] As shown in the drawings, the cover 9 is designed to be pot-shaped, so that the first circuit board 70 is accommodated in the cover and is pressed onto the cover 9 by means of screws screwed into threaded holes of the cover 9 .

[0045] The cover 9 is preferably made of metal, in particular aluminum die-casting.

[0046] The wall part 7 , which is preferably made of plastic, is likewise fastened to the cover part 9 and substantially covers the printed circuit board 70 , so that the printed circuit board 70 is arranged in the spatial region enclosed by the wall part 7 and the cover part 9 .

[0047] The circuit board 70 is provided with electronic components and a rotary switch 1, which can be accessed and / or operated, in particular rotated, through the cutout in the wall part 7. Of course, the cover 9 can be detached from the lower part beforehand, which is fixed to the motor housing or is formed integrally with the motor housing.

[0048] Furthermore, the circuit board 70 is equipped with a first and a second potentiometer (2, 3), which are arranged on the circuit board 70 in such a way that the respective potentiometer (2, 3) can be actuated when the locking screw 10 arranged in the recess of the cover 9 is removed. Thus, a tool, such as a screwdriver, can be introduced from the outside through the recess of the cover 9 to the potentiometer (2, 3) and actuate the potentiometer (2, 3).

[0049] The storage unit 6 comprises a lower part 37 and an upper part 31 , the lower part having pin regions 30 formed integrally, in particular in one piece, on the lower part 37 and in particular spaced apart from one another.

[0050] Preferably, the upper part 31 and the lower part 37 are made of plastic.

[0051] The DIP switches ( 4 , 5 ) mounted on the circuit board 70 can also be actuated through the recesses in the wall part 7 .

[0052] Arranged in the memory unit 6 is a further printed circuit board 36 , which is equipped with at least a long-term stable data memory and the DIP switches 35 .

[0053] Parameters for commissioning the frequency converter can thus be stored in the memory unit 6 and rapid commissioning can be carried out.

[0054] The storage unit 6 comprises a lower part 37 and an upper part 31 , which are connected to one another, in particular by a clip connection.

[0055] Pin regions 30 are formed on the lower part 37 to enable guided connection of the storage unit 6. During production, i.e., when the storage unit 6 is plugged onto the first circuit board 70, guidance is performed by inserting the pin regions 30 into corresponding recesses of the first circuit board 70.

[0056] The circuit board 36 has oppositely arranged cutouts on both sides, into which projection areas formed on the lower part and projecting elastically deflectably toward the circuit board 36 are locked. Thus, the circuit board 36 is received in the storage unit 6 in a form-fitting manner.

[0057] On two opposing sides of the lower part 37, elastically deflectable areas 33 are formed. These areas have locking projections 32 and slotted areas 34. The elastically deflectable areas 33 can be moved toward each other by hand and elastically preloaded. The slotted areas 34 prevent fingers from slipping out. During the elastic deflection of the areas 33, the storage unit 6 is guided through the recesses in the wall part 7 and through at least two recesses in the first printed circuit board 70, using the pin areas 30, toward the furthest extent of the pin areas 30, for insertion into the cover 9. This allows for centering relative to the first printed circuit board 70, so that the conductor tracks, designed as contacts on the other printed circuit board 36 of the storage unit 6, can be introduced into a plug-in component, particularly a socket component, mounted on the printed circuit board 70, without skewing. Due to the guidance provided by the pre-arranged pin areas 30, the plug-in connection between the other printed circuit board 36 and the first printed circuit board 70 can be made without skewing. Initially, the pin areas 30 pass through the recesses in the first printed circuit board 70 when the storage unit 6 is inserted, and only then is the electrical plug connection established.

[0058] That is, the printed circuit board 36 is therefore aligned perpendicularly to the first printed circuit board 70 and to the second printed circuit board 71 arranged alongside the first printed circuit board 70 , and also perpendicularly to the region of the wall part 7 surrounding the storage unit 6 .

[0059] A simple connection can be achieved by means of an electrical plug connection between the first printed circuit board 70 and the further printed circuit board 36 of the storage unit 6. For this purpose, the positive connection of the further printed circuit board 36 in the lower part 37 of the storage unit 6 to the lower part and the positive, play-free connection of the lower part with the wall part 7 by means of the elastically deflectable area 33, in particular a clip connection, secure the storage unit 6. Two pin areas 30 formed on the lower part 37 center the storage unit 6 on the first printed circuit board 70.

[0060] A centering pin 39, which is additionally formed on the lower part 37, is formed on the lower part 37 and projects into a correspondingly formed further recess of the first printed circuit board 70. The storage unit 6 can thus be easily centered.

[0061] 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 a corresponding protruding area suitable for forming a locking connection with the locking lugs 38. The locking lugs 38 have an introduction bevel, but the bevel thereof is in the opposite direction to the bevel formed on the locking lugs 32 of the elastic area 33.

[0062] Therefore, when the storage unit 6 is inserted, the elastic region 33 is elastically compressed toward the lower part 37, and the locking projection 32 extends across the recess arranged in the wall part 7. After the elastically deflectable region 33 is relieved of the load, the locking projection 32 abuts against the underside of the wall part 7, that is, the side of the wall part facing the first circuit board 70, thereby preventing the storage unit 6 from being pulled back. Furthermore, the locking projection 38 abuts against the other side of the wall part 7, specifically the top side. Thus, the wall part 7 is trapped between the locking projection 38 formed on the lower part 37 and the upper part 31. By pressing in different ways, the storage unit 6 is held in a positively locking manner on the wall part 7.

[0063] The connecting line of the two locking projections 38 is perpendicular to the connecting line of the two locking projections 32 , since the locking projections 38 and 32 are arranged on different sides of the storage unit 6 .

[0064] A DIP switch 35 is mounted on the printed circuit board 36 of the storage unit 6. This switch allows for different parameterizations that determine the operating mode, in particular the mode of operation, of the signal electronics mounted on the printed circuit boards 70 and 71. The signal electronics thus function as different AS-Interface slave types and / or with different AS-Interface slave configurations depending on the switch position of the DIP switch 35. Thus, depending on the switch position of the DIP switch 35, correspondingly different modes of operation of the signal electronics accommodated in the cover 9 are activated when the storage unit 6 is inserted.

[0065] The advantage here is that separate electrical devices, in particular frequency converters, do not have to be provided for implementing different AS-Interface slave configurations or types, and the electrical device having the cover 9 and the signal electronics accommodated therein can be used for different configuration files and types. For this purpose, it is only necessary to provide a DIP switch 35 and use the switch position of the DIP switch 35 to adjust the respective desired AS-Interface slave configuration or type.

[0066] In the event of repairs, a very quick and simple replacement is thus possible by replacing the signaling electronics together with the memory unit 6 and using the DIP switch settings.

[0067] At least two cutouts 40 are arranged on the printed circuit board 36 on two opposite edges of the printed circuit board 36 .

[0068] The cover 9 is preferably made of plastic. Alternatively, however, an embodiment made of aluminum die-casting is also possible.

[0069] The wall element 7 is preferably made of a plastic with high insulation strength and can therefore also function as a thermal insulator.

[0070] According to the invention, the electrical device is therefore also designed as a variable-frequency motor, wherein the signal electronics are arranged in the cover 9 and the storage module designed as the storage unit 9 can be inserted into the cover by means of a locking or clip connection, wherein a locking or clip connection to the wall part 7 is provided, which is connected to the cover 9 by means of a screw or locking connection, in particular like the first circuit board 70.

[0071] In other embodiments according to the invention, the cover is placed onto the lower part and sealed, wherein the lower part is arranged on a housing part of the motor and sealed. Thus, a compact embodiment of the electrical device can be designed as a frequency-converter motor.

[0072] List of reference numerals:

[0073] 1 Turn the switch

[0074] 2 potentiometers

[0075] 3 potentiometers

[0076] 4 DIP switches

[0077] 5 DIP switches

[0078] 6 Storage Units

[0079] 7 Wall components, especially thermal insulation

[0080] 8 connectors

[0081] 9 Cover

[0082] 10 Locking bolts, especially made of plastic

[0083] 20 legs

[0084] 21 Mechanical interface for positive locking of tools

[0085] 30 pin area

[0086] 31 Upper part

[0087] 32 Locking protrusion

[0088] 33 Elastic area of lower part 37

[0089] 34 slotted area

[0090] 35 DIP switches

[0091] 36 circuit boards

[0092] 37 lower part

[0093] 38 Locking protrusion

[0094] 39 Centering pin

[0095] 40 incision

[0096] 70 First Circuit Board

[0097] 71 First Circuit Board

Claims

1. An electrical device comprising a cover and a signal electronics device, It is characterized by: The signal electronics device comprises a first printed circuit board and a memory unit, The storage unit has a switch unit. the operating modes of the signaling electronics function as different AS-Interface slave configurations depending on the switch position of the switching unit and / or as different AS-Interface slave types depending on the switch position of the switching unit, The storage unit has a further circuit board which is accommodated in a housing of the storage unit, wherein the housing has a lower part and an upper part connected to the lower part. At least one pin area is formed on the lower part, and the at least one pin area is inserted into a recess of the first printed circuit board. The at least one pin area is used to guide the storage unit in advance when the printed conductor of the other printed circuit board, which serves as a contact, is plug-connected to the plug connector mounted on the first printed circuit board. The upper part and the lower part are connected in a form-fitting manner by means of a clip connection.

2. The electrical device according to claim 1, It is characterized by: The electrical equipment is a frequency converter or a variable frequency motor, The storage unit is electrically plug-connected to the first circuit board by means of an electrical plug-in device. The switch unit is a DIP switch.

3. The electrical device according to claim 1, It is characterized by: The wall member is connected to the cover member, The first circuit board is arranged between the wall component and the cover component, and the first circuit board is connected to the cover component.

4. The electrical device according to claim 3, It is characterized by: The wall part is made of plastic and / or the cover part is made of metal, The wall element serves as a thermal barrier between the signal electronics and the electric machine, to which the cover element is connected a housing part.

5. The electrical device according to claim 3, It is characterized by: At least two elastically deflectable regions are formed on the lower part. A first locking lug is formed on each of the at least two elastically deflectable regions, which serves for a positive connection.

6. The electrical device according to claim 3, It is characterized by: A second circuit board is arranged between the wall member and the cover member. The second printed circuit board is arranged parallel to the first printed circuit board and / or spaced apart from the first printed circuit board.

7. The electrical device according to any one of claims 1 to 4, It is characterized by: The first circuit board is equipped with a plug-in connector, Among them, another circuit board of the storage unit is plug-connected with the plug-in connector, The conductor tracks arranged on the further printed circuit board serve as contacts which are connected to contacts of the plug connector in an electrically isolable manner.

8. The electrical device according to claim 5, It is characterized by: The elastically deflectable region has, on its side facing away from the further printed circuit board, a grooved, knurled and / or roughened region in order to increase the anti-slip properties.

9. The electrical device according to claim 5, It is characterized by: The first locking projection rests on the side of the wall part facing the first printed circuit board.

10. The electrical device according to any one of claims 1 to 4, It is characterized by: The second locking lug formed on the lower part and / or the upper part rests against the side of the wall part facing away from the first printed circuit board.

11. The electrical device according to claim 10, It is characterized by: The other printed circuit board has a recess into which a second elastically deformable locking lug formed on the upper part or the lower part projects.

12. The electrical device according to claim 10, It is characterized by: The second locking projection formed on the lower part and / or the upper part has a bevel, the distance of which from the further circuit board decreases as the distance from the bevel to the pin region or regions increases.

13. The electrical device according to claim 5, It is characterized by: The corresponding first locking projection formed on the elastically deflectable region has an insertion bevel, the distance of which from the further circuit board increases as the distance from the insertion bevel to the pin region or pin regions increases.

14. The electrical device according to claim 3, It is characterized by: The other circuit board is equipped with a switching unit and a long-term stable data memory, and / or A centering pin is formed on the lower part and / or the upper part, said centering pin being spaced apart from the pin region or regions and projecting into a further continuous recess of the first printed circuit board, and / or The wall part has a notch through which a tool can be inserted to operate a potentiometer, a rotary switch or other DIP switch. and / or At least one potentiometer is arranged on the first circuit board, and the cover has a notch covered by the locking member. In this case, the potentiometer can be actuated by means of a screwdriver inserted through the cutout when the locking screw is removed.

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