Electromotive drive system electronic housing with plug connections for DC voltage supplies, field busses and digital inputs and outputs

Abstract

An electromotive drive system having an electronics housing on the motor side and having, detachably plugged thereinto, a connection housing for connecting and contacting connection wires in particular direct current supply wires, of at least two connection cables.

Claims

1. An electromotive drive system comprising: an electronics housing arranged on a motor side; and a connection housing that is detachably plug-contacted to the electronics housing and is designed for connecting and through-contacting connecting wires of at least two connecting cables, wherein the connection housing includes a connecting printed circuit board therein and has a plug contact surface that includes a plurality of plug connections projecting from the plug contact surface, the plurality of plug connections being formed on a first surface of the printed circuit board and a terminal side that includes a plurality of connecting openings for the at least two connecting cables, wherein the electronics housing has a housing surface, which faces the plug contact surface of the connection housing after the connection housing is plug-contacted to the electronic housing and which includes a plurality of mating plug connection openings formed in the housing surface and a mechanical connection projecting from the housing surface for affixing the electronic housing to the connection housing, the plurality of mating plug connection opening respectively aligned to a plurality of mating plug connections corresponding to and mating with the plurality of plug connections in a mating direction, wherein the connecting cables are guided and connected to a second surface of the connecting printed circuit board opposite from the first surface in the mating direction that is perpendicular to the first and second surfaces, and the connecting wires are contacted to the plug connections inside the connection housing, and wherein the connecting cables or the connecting wires guided thereby are through-contacted within the connection housing.

2. The electromotive drive system according to claim 1, wherein the connecting cables guide a number of supply wires for predetermined DC voltages.

3. The electromotive drive system according to claim 1, wherein the connecting cables guide a number of signal and/or data wires.

4. The electromotive drive system according to claim 1, wherein the connection housing is provided and configured to through-connect at least one power supply of the drive system from one of the two connecting cables to the other of the two connecting cables.

5. The electromotive drive system according to claim 1, wherein contact of the connecting wires within the connection housing forms a shared plug connector for the two connecting cables, so that the two connecting cables can be plug-contacted with the electronics housing together and simultaneously by the connection housing, and wherein the through-contacting the connection between the two connecting cables or the connecting wires guided thereby within the connection housing is maintained when the plug connection between the connection housing and the electronics housing is detached.

6. The electromotive drive system according to claim 1, wherein the plug and mating plug connections comprise: a single two-pole plug connection for a link DC voltage; a single three-pole plug connection for a supply DC voltage; a plug connection for a field bus input; a plug connection for a field bus output; and/or a plug connection for a digital input and a digital output.

7. The electromotive drive system according to claim 6, wherein the link DC voltage is greater than 50 V.sub.DC, or 60 V.sub.DC to 760 V.sub.DC.

8. The electromotive drive system according to claim 6, wherein the supply DC voltage less than 50 V.sub.DC or 24 V.sub.DC.

9. An electromotive drive system, comprising: a motor housing; an electronics housing arranged on a motor side; and a connection housing, which is detachably plug-contacted to the electronics housing for connection of connecting wires of at least two connecting cables, wherein the connection housing has a plug contact side, which includes a number of plug connections, and a terminal side, which has connecting openings for the connecting cables; wherein the electronics housing has a housing side, which faces the plug contact side of the connection housing and which includes mating plug connections corresponding to the plug connections; wherein the connecting cables are guided to a connecting printed circuit board within the connection housing, and the connecting wires are contacted to the plug connections inside the connection housing; wherein the connection housing is provided and configured to through-connect at least one power supply of the drive system from one of the two connecting cables to the other of the two connecting cables in that the connecting cables or the connecting wires guided thereby are through-contacted within the connection housing, wherein after contacting of the connecting wires within the connection housing, this represents a shared plug connector for the two connecting cables, so that the two connecting cables can be plug-contacted with the electronics housing together and simultaneously with the connection housing, and wherein due to the through-contacting the connection between the two connecting cables or the connecting wires guided thereby within the connection housing is maintained, when the plug connection between the connection housing and the electronics housing is detached.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The present invention will become more fully understood from the detailed description given hereinbelow and the accompanying drawings which are given by way of illustration only, and thus, are not limitive of the present invention, and wherein:

(2) FIGS. 1a and 1b show a side view and a housing-side front view, respectively, of an electromotive drive system, which has an (integral) electronics housing on the motor side, including a mounted connection housing;

(3) FIG. 2 shows a perspective representation of the drive system with a detached plug connection between the electronics housing and the connection housing, with a view of plug and mating plug connections of the corresponding housing sides of the electronics housing and the connection housing; and

(4) FIG. 3 shows a schematic view of the connection of terminal or connecting wires of two connecting cables in the connection housing.

DETAILED DESCRIPTION

(5) Electromotive drive system 1 according to FIGS. 1 and 2 comprises an electric motor in a motor housing 2, on which an electronics housing 3 and a connection housing 4 are arranged, the latter being detachably plug-contacted to electronics housing 3 and mechanically connected thereto, for example, with the aid of a screw connection 5. In the exemplary embodiment, electronics housing 3 is L-shaped and extends partially along the longitudinal side as well as over a narrow side or end face of motor housing 2. On the end face of the electric motor facing away from electronics housing 3, motor or gear shaft 7 is led out from motor housing 2 of the electric motor, for example via a gear set 6.

(6) While FIG. 1b shows connection housing 4 from its connection or front side 8, FIG. 2 shows, in the right half of the figure, connection housing 4 with a view of its plug contact side 9, where plug connections 11a through 16a are arranged. These plug connections 11a through 16a correspond to mating plug connections 11b through 16b on housing or plug contact side 10 of electronics housing 3 facing connection housing 4 or its plug contact side 9.

(7) Specifically, a single plug connection 11a, 11b is provided for a link DC voltage, for example greater than 50 V.sub.DC and less than 800 V.sub.DC. Another individual plug connection 12a, 12b is provided for a supply DC voltage of 50V, in particular 24V.sub.DC. Another plug connection 14a, 14b is provided for a field bus input, while a plug connection 16a, 16b is furthermore provided for a field bus output. Another plug connection 15a, 15b is used as a digital input and digital output. A plug connection 13a, 13b furthermore acts as a safety connection (STO technology).

(8) Connecting wires of two connecting cables K.sub.n are contacted within connection housing 4, and thus internally in the housing, in a manner which is not illustrated in greater detail. The connecting cables are fed into connection housing 4 on front side 18 thereof via cable openings 17 (FIG. 1b). The terminal contacting of the line ends of connecting cables K.sub.n with contact points of particular plug connections 11 through 16 thus takes place internally within connection housing 4.

(9) According to the exemplary embodiment in FIG. 1b, cable openings 17 may be provided in a front plate 19, which is detachably connected to a corresponding housing part 20 of connection housing 4. In this specific embodiment, front plate 19 is first detached from remaining housing part 20 of connection housing 4 for the purpose of assembly and contacting, and connecting cables K.sub.n are fed through cable openings 17. In this state of assembly, the wire ends of connecting wires L.sub.n guided by connecting cables K.sub.n at the particular contact points of corresponding plug connections 11a through 16a may be established with the aid of screw, clamp or plug connections.

(10) In the case of connecting wires Ln contacted within connection housing 4 according to FIG. 3, through-contacting areas between at least supply lines L11 through L1n and L21 through L2n, respectively, which are contacted with plug connections 11a, 12a and guided by connecting cables K1 and K2, are established in the form of contact bridges 22 or the like by means of printed circuit board 21 inside the housing. In this manner, a through-connection of the power supply from one of connecting cables K1 to the other connecting cable K2 is established within connection housing 4. A through-connection of the power supply, in particular between two energy-and data-networked drive systems, is maintained even if plug connections 11 through 16, in particular plug connections 11 and 12, for supplying power to a converter electronic system of the electric motor and/or to a control, regulation, sensor, actuator and/or communication electronic system, is detached between electronics housing 3 and connection housing 4, as illustrated in FIG. 2.

(11) Connection housing 4 thus takes on the function of a tee connector with the aid of only one single plug connection 11 through 16 for corresponding connecting wires L.sub.n of both connecting cables K.sub.n, while simultaneously always maintaining the through-connection of at least the supply voltage and thus maintaining the power supply of an upstream or downstream drive system.

(12) The invention being thus described, it will be obvious that the same may be varied in many ways. Such variations are not to be regarded as a departure from the spirit and scope of the invention, and all such modifications as would be obvious to one skilled in the art are to be included within the scope of the following claims.