Connection system for connecting a device for discharging thick matter to a multi-phase electrical supply network

Abstract

Connection system (100) for connecting a device for discharging thick material (200) to a multi-phase electrical supply network (300), comprising: - a first cable (101) and - at least one second cable (102, 103) designed independently of the first cable (101), - wherein the first cable (101) is provided to electrically connect the device for discharging thick matter (200) to a first phase (L1) of the multi-phase electrical supply network (300) and not to electrically connect it to a second phase (L2) of the multi-phase electrical supply network (300), and - wherein the second cable (102) is provided to electrically connect the device for discharging thick matter (200) to the second phase (L2) of the multi-phase electrical supply network (300) independently of the first cable (101) and not to electrically connect it to the first phase (L1) of the multi-phase electrical supply network (300).

Description

[0001] DE 10 2022 127 899 A1 discloses a connection system for connecting a device for discharging thick matter to a multi-phase electrical supply network, comprising: a first cable and at least one second cable designed independently of the first cable, wherein the first cable is provided to electrically connect the device for discharging thick matter to a multi-phase electrical supply network, and wherein the second cable is provided to electrically connect the device for discharging thick matter to another multi-phase electrical supply network independently of the first cable.

[0002] The invention is based on the object of providing a connection system for connecting a device for discharging thick matter to a multi-phase electrical supply network, which is as easy to handle as possible.

[0003] The connection system is used to connect a device for discharging thick material, for example a truck-mounted concrete pump, to a multi-phase, for example 3-phase, electrical supply network.

[0004] The connection system comprises a first cable and at least one second cable, designed independently of the first cable. The first cable is intended to electrically connect the device for discharging thick material, in particular exclusively, to a first phase of the multi-phase electrical supply network, but not to a second phase and / or a third phase of the multi-phase electrical supply network. The second cable is intended to electrically connect the device for discharging thick material, independently of the first cable, to the second phase of the multi-phase electrical supply network, but not to the first phase and / or the third phase of the multi-phase electrical supply network.

[0005] The first cable and the second cable are particularly intended to electrically connect the device for discharging thick matter directly to the corresponding phases of the multi-phase electrical supply network without the interposition of further cables or conductors,

[0006] In one embodiment, the connection system comprises a third cable, wherein the third cable is provided to electrically connect the device for discharging thick matter, in particular exclusively, to a third phase of the multi-phase electrical supply network.

[0007] In one embodiment, the connection system comprises a PE connection cable which is designed independently of the first cable, the second cable and the third cable and which is intended to electrically connect the device for discharging thick material to protective earth.

[0008] In one embodiment, a respective cable is a single-core cable.

[0009] In one embodiment, the first cable is intended to electrically connect the slurry discharge device to a third phase of the multi-phase electrical supply network in addition to the first phase, and the second cable is intended to electrically connect the slurry discharge device to protective earth in addition to the second phase. In other words, the first cable carries, for example, L1 and L3 (or L2), and the second cable carries L2 (or L3) and PE.

[0010] In one embodiment, a respective cable is a multi-core cable, in particular a two-core cable.

[0011] In one embodiment, each cable has at least one connector. These connectors can be designed to lock mechanically, for example.

[0012] In one embodiment, each cable has a minimum length of between 5 and 20 meters.

[0013] Electric-driven high-density material dischargers derive a significant portion of their power from the electrical grid and are therefore connected to it via a cable. Because these machines frequently change locations, they cannot be permanently connected to the grid but must be connected via detachable (plug-in) connections. For this, the appropriate cable must first be installed.

[0014] Typical system performance requires high currents, which, combined with the long cable lengths in mobile work environments, necessitate large to very large cable cross-sections. Conventional multi-conductor cables and connectors are difficult to move by hand, and the insertion forces are very high, even in new condition without typical construction site contamination. For very high electrical power requirements, conventional cables can only be installed and plugged in with the aid of tools.

[0015] According to the invention, a conventional single cable, by means of which the device for discharging thick material is conventionally electrically connected to the electrical supply network, is divided into at least two different, separate, and pluggable cables. In a maximum expansion stage, exactly one line or cable is assigned to each required potential or phase.

[0016] Handling the individual conductors or cables is significantly simplified due to the weight reduction by a factor of 4 to 5 compared to a single cable. The use of very large cable cross-sections is possible, enabling higher system performance. The insertion forces of the individual cables are significantly reduced compared to a conventional cable. This allows for insertion without the need for devices or automatic machines. Furthermore, the individual cables are easier to store on the device for discharging thick material. Furthermore, individual cables are significantly less rigid than cables with multiple individual conductors.

[0017] The invention is described in detail below with reference to the drawings. Fig. 1 highly schematically shows a connection system for connecting a device for discharging thick matter to a multi-phase electrical supply network.

[0018] Fig.1 shows a highly schematic connection system 100 for connecting a device for discharging thick material in the form of a truck-mounted concrete pump 200 to a multi-phase electrical supply network 300.

[0019] The connection system 100 comprises: a first cable 101, a second cable 102 formed independently of the first cable 101, a third cable 103 formed independently of the first cable 101 and the second cable 102, and a PE connection cable 104 formed independently of the first cable 101, the second cable 102, and the third cable 103.

[0020] The first cable 101 is intended to electrically connect the high-density material discharge device 200 to a first phase L1 of the multi-phase electrical supply network 300. The second cable 102 is intended to electrically connect the high-density material discharge device 200 to a second phase L2 of the multi-phase electrical supply network 300. The third cable 103 is intended to electrically connect the high-density material discharge device 200 to the third phase L3 of the multi-phase electrical supply network 300. The PE connection cable 104 is intended to electrically connect the high-density material discharge device 200 to protective earth PE.

[0021] Cables 101, 102, 103, and 104 are each single-core. Alternatively, instead of four cables, just two two-core cables can be used, with one of these cables carrying, for example, L1 and L2, and the other carrying L3 and PE.

[0022] The cables 101, 102, 103 and 104 each have a connector 105 or 106 at their ends.

[0023] The thick material discharge device 200 has independent electrical working machine connections 201, 202, 203, and 204, which are designed or provided for connecting the cables 101, 102, 103, and 104, respectively. The working machine connections 201, 202, 203, and 204 each have a working machine socket 205.

[0024] The device for discharging thick material 200 is a (mobile) concrete pump which has at least one electric motor 206 which can be supplied or is supplied from the multi-phase electrical supply network 300 via the working machine connections 201, 202, 203 and 204.

[0025] The device for discharging thick material 200 further comprises a testing device 207 which is designed to check whether the working machine connections 201, 202, 203 and 204 are electrically connected as intended to corresponding connections of the multi-phase electrical supply network 300.

[0026] Furthermore, a construction site power distributor 400 is schematically shown, which has independent electrical construction site power distributor connections 401, 402, 403, and 404, which are designed for connecting the cables 101, 102, 103, and 104, respectively. For this purpose, the construction site power distributor connections 401, 402, 403, and 404 each have a construction site power distributor socket 405.

Claims

[1] Connection system (100) for connecting a device for discharging thick material (200) to a multi-phase electrical supply network (300), comprising: - a first cable (101) and - at least one second cable (102, 103, 104) designed independently of the first cable (101), - wherein the first cable (101) is provided to electrically connect the device for discharging thick matter (200) to a first phase (L1) of the multi-phase electrical supply network (300) and not to electrically connect it to a second phase (L2) of the multi-phase electrical supply network (300), and - wherein the second cable (102) is provided to electrically connect the device for discharging thick matter (200) to the second phase (L2) of the multi-phase electrical supply network (300) independently of the first cable (101) and not to electrically connect it to the first phase (L1) of the multi-phase electrical supply network (300). [2] Connection system (100) according to claim 1, characterized by , that - the connection system (100) comprises a third cable (103), wherein the third cable (103) is provided for electrically connecting the device for discharging thick matter (200) to a third phase (L3) of the multi-phase electrical supply network (300). [3] Connection system (100) according to one of the preceding claims, characterized by , that - the connection system (100) has a PE connection cable (104) which is designed independently of the first cable (101) and the second cable (102) and which is intended to electrically connect the device for discharging thick material (200) to protective earth (PE). [4] Connection system (100) according to one of the preceding claims, characterized by , that - each cable (101, 102, 103, 104) is a single-core cable. [5] Connection system (100) according to claim 1, characterized by , that - the first cable (101) is intended to electrically connect the device for discharging thick matter (200) in addition to the first phase (L1) to a third phase (L3) of the multi-phase electrical supply network (300), and - the second cable (102) is intended to electrically connect the thick matter discharge device (200) to protective earth (PE) in addition to the second phase (L2). [6] Connection system (100) according to claim 5, characterized by , that - a respective cable (101, 102, 103, 104) is a multi-core cable, in particular a two-core cable. [7] Connection system (100) according to one of the preceding claims, characterized by , that - a respective cable (101, 102, 103, 104) has at least one connector (105, 106). [8] Connection system (100) according to one of the preceding claims, characterized by , that - a respective cable (101, 102, 103, 104) has a minimum length of 5 meters, in particular 20 meters.

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