CN207381111U - Three phase electric machine p-wire - Google Patents

Abstract

Three phase electric machine p-wire,Including power cord,Ground wire and signal wire,Power cord is three,It is 1 group that the copper wire that 32 line footpaths are 15, which be twisted,,7 groups are twisted together again as power supply wire core,PVC insulating layers are coated outside 7 groups of power supply wire cores,The outer wall for coating PVC insulating layers at 3 again coats PVC insulating outer layers,Form power cord,25 line footpaths is used to be twisted together for the copper wire of 10 as 1 group,7 groups are twisted together mutually again again,Form ground wire cored wire,PVC insulating layers are coated in the outside of ground wire cored wire,Into ground wire,In ground wire outer cladding PVC insulating outer layers,Every signal wire is twisted together by 14 copper wires that line footpath is 4 as 1 group,11 groups are twisted mutually as signal wire core,PVC insulating layers are coated in signal wire core outer wall,As a signal wire,Again in three signal wire outer cladding PVC insulating outer layers,Finally by power cord PVC insulating outer layers,The outer wall of ground wire PVC insulating outer layers and signal wire PVC insulating outer layers bonds together.

Description

Three phase electric machine p-wire

Technical field

The utility model is related to three phase electric machine p-wires.

Background technology

Motor must all test the performance indicator of motor, in new product development between the instrument and motor of test There is p-wire, p-wire includes power cord, ground wire and signal wire, and on the one hand according to the watt level of electromechanical testing, power cord leads to Different electric currents is crossed, interference can be generated, existing power cord, ground wire and signal wire generally all bundle, due to electric current By generating interference to signal wire, influencing the accuracy of test data, another aspect power cord etc. at work, and then machine Operation, easily generates fatigue, and service life is short.

The content of the invention

The purpose of this utility model is to overcome prior art there are the shortcomings that, provide one kind make power cord, ground wire and Good insulation preformance between signal wire, but combine, easy-to-connect, and test that line strength is good, the three of service life length Phase electromechanical testing line.

The technical solution of the utility model three phase electric machine p-wire is that, including power cord, ground wire and signal wire, feature exists It it is three in the power cord, every sub-power source line is 32 into 7 groups, every group, and the line footpath of every is 15, by 32 line footpaths It is 1 group for the copper wires of 15 be twisted, then 7 groups are twisted together again as power supply wire core, stranded at 7 groups Cladding PVC insulating layers outside power supply wire core, then the outer wall for coating PVC insulating layers at 3 coat PVC insulating outer layers, described Ground wire uses 25 line footpaths to be twisted together for the copper wire of 10 as 1 group, then 7 groups are twisted together mutually again, forms ground wire Cored wire coats PVC insulating layers, into ground wire, in ground wire outer cladding PVC insulating outer layers, the signal in the outside of ground wire cored wire Line is 3, and every signal wire is twisted together by 14 copper wires that line footpath is 4 as 1 group, then 11 groups are twisted mutually as signal Wire core coats PVC insulating layers in signal wire core outer wall, becomes a signal wire, then exhausted in three signal wire outer cladding PVC The outer wall of power cord PVC insulating outer layers, ground wire PVC insulating outer layers and signal wire PVC insulating outer layers is finally bonded in by edge outer layer Together, complete three phase electric machine p-wire is become.

The utility model discloses a kind of three phase electric machine p-wire, main features：First, first by different size line footpath Copper wire be twisted in groups, such as power cord line footpath be 15,32 one group, ground wire line footpath be 10,25 one group, signal wire line Footpath is 4,14 one group, and each group all by twisting together mutually, is then carried out twice stranding, by multiple by each group again Twisted cored wire is in use, increases intensity, improves service life；Second is that single power line is made in every 7 groups of power supply wire cores, Again by 3 power wire combinations together, PVC insulating outer layers are coated outside, and by the same method, ground wire and signal wire are made Independent insulated wire makes good insulation preformance between power cord and signal wire, avoids interfering with each other, and power supply is to letter when overcoming use The influence of number line, it is ensured that the accuracy of signal testing, then the insulating outer layer of independent power cord, ground wire and signal wire passed through viscous It closes, becomes an entirety, be conducive to patching operations, avoid generating the messy phenomenon of each line.

Description of the drawings

Fig. 1 is the structure sectional view of the utility model three phase electric machine p-wire；

Fig. 2 is signal line structure schematic diagram.

Specific embodiment

The utility model is related to a kind of three phase electric machine p-wire, as shown in Figure 1 and Figure 2, including power cord, ground wire and signal Line, it is characterised in that the power cord is three, and every sub-power source line is 32 into 7 groups, every group, and the line footpath of every is 15 Silk, it is 1 group that the copper wire that 32 line footpaths are 15, which be twisted, then 7 groups are twisted together again as power supply wire core 11, PVC insulating layers 12 are coated outside 7 groups of stranded power supply wire cores, then in 3 outer wall for coating PVC insulating layers claddings PVC insulating outer layers 13, the ground wire use 25 line footpaths to be twisted together for the copper wire of 10 as 1 group, then again mutual by 7 groups It twists together, forms ground wire cored wire 21, the cladding PVC insulating layers 22 in the outside of ground wire cored wire 21, into ground wire, in ground wire outsourcing Cover PVC insulating outer layers 23, the signal wire is 3, every signal wire by 14 copper wires that line footpath is 4 twist together for 1 group, then 11 groups are twisted mutually as signal wire core 31, in 31 outer wall of signal wire core cladding PVC insulating layers 32, become one Signal wire, then in three signal wire outer cladding PVC insulating outer layers 33, finally power cord PVC insulating outer layers, ground wire PVC insulate Outer layer and the outer wall of signal wire PVC insulating outer layers bond together, and become complete three phase electric machine p-wire.Its main feature： When be first twisted the copper wire of different size line footpath in groups, such as power cord line footpath is 15,32 one group, ground wire line footpath is 10,25 one group, signal wire line footpath is 4,14 one group, and each group, all by twisting together mutually, is then incited somebody to action each again Group carries out twice stranding, in use by repeatedly twisted cored wire, increases intensity, improves service life；It is second is that electric by every 7 groups Single power line is made in source wire core, then, PVC insulating outer layers is coated outside, by same by 3 power wire combinations together Independent insulated wire is made in ground wire and signal wire by method, makes good insulation preformance between power cord and signal wire, is avoided mutually relevant It disturbs, influence of the power supply to signal wire when overcoming use, it is ensured that the accuracy of signal testing, then by independent power cord, ground wire Insulating outer layer with signal wire becomes an entirety, is conducive to patching operations, avoid generating the messy phenomenon of each line by bonding.

Claims (1)

1. three phase electric machine p-wire, including power cord, ground wire and signal wire, it is characterised in that the power cord is three, often Root sub-power source line is into 7 groups, and every group is 32, and the line footpath of every is 15, and it is 1 that the copper wire that 32 line footpaths are 15, which be twisted, Group, then 7 groups are twisted together again as power supply wire core（11）, coated outside 7 groups of stranded power supply wire cores PVC insulating layers（12）, then in 3 outer wall for coating PVC insulating layers cladding PVC insulating outer layers（13）, the ground wire is using 25 Root line footpath is that the copper wire of 10 is twisted together as 1 group, then 7 groups are twisted together mutually again, forms ground wire cored wire（21）, Ground wire cored wire（21）Outside cladding PVC insulating layers（22）, into ground wire, in ground wire outer cladding PVC insulating outer layers（23）, it is described Signal wire is 3, and every signal wire is twisted together by 14 copper wires that line footpath is 4 as 1 group, then 11 groups are twisted mutually and is Signal wire core（31）, in signal wire core（31）Outer wall coats PVC insulating layers（32）, become a signal wire, then at three Signal wire outer cladding PVC insulating outer layers（33）, finally by power cord PVC insulating outer layers, ground wire PVC insulating outer layers and signal wire The outer wall of PVC insulating outer layers bonds together, and becomes complete three phase electric machine p-wire.