CN208607958U - A kind of power cable for motor for preventing electromagnetic interference - Google Patents
A kind of power cable for motor for preventing electromagnetic interference Download PDFInfo
- Publication number
- CN208607958U CN208607958U CN201821302684.0U CN201821302684U CN208607958U CN 208607958 U CN208607958 U CN 208607958U CN 201821302684 U CN201821302684 U CN 201821302684U CN 208607958 U CN208607958 U CN 208607958U
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- CN
- China
- Prior art keywords
- cable
- motor
- electromagnetic interference
- power cable
- preventing electromagnetic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000010521 absorption reaction Methods 0.000 claims abstract description 29
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000000605 extraction Methods 0.000 claims abstract description 11
- 238000009413 insulation Methods 0.000 claims abstract description 9
- 239000003990 capacitor Substances 0.000 claims description 8
- 230000003071 parasitic effect Effects 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000004698 Polyethylene Substances 0.000 claims description 2
- 150000001336 alkenes Chemical class 0.000 claims description 2
- -1 polyethylene Polymers 0.000 claims description 2
- 229920000573 polyethylene Polymers 0.000 claims description 2
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 2
- 239000004800 polyvinyl chloride Substances 0.000 claims description 2
- 238000004132 cross linking Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 description 6
- 230000009102 absorption Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000005764 inhibitory process Effects 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 230000008676 import Effects 0.000 description 3
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 2
- 229920003020 cross-linked polyethylene Polymers 0.000 description 2
- 239000004703 cross-linked polyethylene Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- 208000032365 Electromagnetic interference Diseases 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229920001596 poly (chlorostyrenes) Polymers 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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- Insulated Conductors (AREA)
Abstract
The utility model discloses a kind of power cables for motor for preventing electromagnetic interference.The power cable includes including power cable ontology and Absorption Capacitance, the power cable ontology is double-shielded cable, the double-shielded cable successively includes cable copper core, cable inner insulating layer, cable internal shield, cable intermediate insulating layer, cable external shielding layer and cable outer insulation from inside to outside, the cable internal shield is connected by extraction wire with the earth, the cable external shielding layer is connected by extraction wire with Absorption Capacitance one end, and the other end of the Absorption Capacitance is connected with the earth.Power cable provided by the utility model for motor for preventing electromagnetic interference can effectively weaken the external electromagnetic interference of cable.
Description
Technical field
The utility model relates to electromagnetic interference technical fields, more particularly to a kind of power for motor for preventing electromagnetic interference
Cable.
Background technique
Modern permanent magnet synchronous motor drives cable that can generate strong spike formula electromagnetism using PWM wave chopping technology drive control
Wave can generate radiation and conduction to surrounding, influence the normal work of various electronics, electrical equipment, especially influence speed and rotation
The acquisition of position signal makes motor or other electronic device works in unstable state.Industrial common practice is using shielding
Cable and bonding form are anti-interference, but effect is accidentally ideal, and especially motor is applied in Vehicle Industry, is not able to satisfy vehicle
Traveling in reliability requirement.
Summary of the invention
The utility model provides a kind of power cable for motor for preventing electromagnetic interference, can effectively weaken cable pair
Outer electromagnetic interference.
To achieve the above object, the utility model provides following scheme:
A kind of power cable for motor for preventing electromagnetic interference, which is characterized in that including power cable ontology and absorb electricity
Hold 7, the power cable ontology be double-shielded cable, the double-shielded cable from inside to outside successively include cable copper core 1,
Cable inner insulating layer 2, cable internal shield 3, cable intermediate insulating layer 4, cable external shielding layer 5 and cable outer insulation 6, it is described
Cable internal shield 3 is connected by extraction wire with the earth, and the cable external shielding layer 5 passes through extraction wire and Absorption Capacitance
7 one end are connected, and the other end of the Absorption Capacitance 7 is connected with the earth.
Optionally, insulating sheath is provided in the extraction wire.
Optionally, the Absorption Capacitance 7 is attached on the cable body.
Optionally, the cable copper core is cut with scissors and is formed using copper free wire, uses the quantity of copper core for 10.
Optionally, the Absorption Capacitance 7 uses safety capacitor.
Optionally, the value range of the safety capacitor is in 1nF between 100nF.
Optionally, there is also interior external shielding layer parasitic capacitance 8, the parasitic electricity of interior external shielding layer in the power cable
Hold 8 to be present between the cable internal shield 3 and the cable external shielding layer 5.
Optionally, the material of the cable inner insulating layer 2, cable intermediate insulating layer 4 and cable outer insulation 6 uses polychlorostyrene
Ethylene, polyethylene and crosslinked polyethylene；
Optionally, the material of the cable internal shield 3 and cable external shielding layer 5 is using the netted of red metal or tin-coated copper
Braided fabric.
The technology compared with prior art, has the following beneficial effects:
A kind of power cable for motor for preventing electromagnetic interference provided by the utility model, is isolated using double-shielded cable
On the basis of electromagnetic interference, increase Absorption Capacitance structure, Absorption Capacitance is arranged between cable external shielding layer and the earth, makes high frequency
Electromagnetic interference and harmonic wave by cable external shielding layer over the ground between capacitor absorbed, cable internal shield is connect with the earth, is made
Low frequency electromagnetic interference imports the earth by the ground connection of cable internal shield, has to the whole electromagnetic interference signals of low, high frequency in this way
Good inhibition and absorption, and effect is obvious.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only the utility model
Some embodiments for those of ordinary skill in the art without any creative labor, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is the structural schematic diagram of the utility model embodiment power cable；
Fig. 2 is that schematic diagram is connected to motor in the utility model embodiment power cable.
Description of symbols: 1- cable copper core；2- cable inner insulating layer；3- cable internal shield；4- cable intermediate insulation
Layer；5- cable external shielding layer；6- cable outer insulation；7- Absorption Capacitance；External shielding layer parasitic capacitance in 8-；9- position sensing
Device；10- signal cable；11- motor；12- power cable；13- motor housing.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
The utility model provides a kind of power cable for motor for preventing electromagnetic interference, can effectively weaken cable pair
Outer electromagnetic interference.
To keep the above objects, features, and advantages of the utility model more obvious and easy to understand, with reference to the accompanying drawing and have
The present invention is described in further detail for body embodiment.
Fig. 1 is the structural schematic diagram of the utility model embodiment power cable, as shown in Figure 1, a kind of anti-electric for motor
The power cable of magnetic disturbance, which is characterized in that including power cable ontology and Absorption Capacitance 7, the power cable ontology is double
Layer shielded cable, the double-shielded cable successively include cable copper core 1, cable inner insulating layer 2, cable inner shield from inside to outside
Layer 3, cable intermediate insulating layer 4, cable external shielding layer 5 and cable outer insulation 6, the cable copper core 1 is by exhausted in the cable
Edge layer 2 is wrapped up, and the cable inner insulating layer 2 is wrapped up by the cable internal shield 3, and cable internal shield 3 is by the cable
Between insulating layer 4 wrap up, the intermediate insulating layer 4 wraps up by the cable external shielding layer 5, and the cable external shielding layer 5 is by described
Cable outer insulation 6 wraps up.The cable internal shield 3 is connected by extraction wire with the earth, the cable inner shield line 3
Can also directly be connected with motor housing 13 to be greatly connected, cable internal shield 3 with greatly connect, make low-frequency electrical
Magnetic disturbance imports the earth by the ground connection of cable internal shield 3.The cable external shielding layer 5 passes through extraction wire and Absorption Capacitance
7 one end are connected, and the other end of the Absorption Capacitance 7 is connected with the earth.The Absorption Capacitance 7 can also be with motor housing 13
It is connected thus with being greatly connected.Absorption Capacitance 7 is arranged between cable external shielding layer 5 and the earth, interferes high-frequency electromagnetic
And harmonic wave by cable external shielding layer 5 over the ground between Absorption Capacitance 7 absorbed, in this way to the whole electromagnetic interferences of low, high frequency believe
Number there are good inhibition and absorption, and effect is obvious.Insulating sheath is provided in the extraction wire.The absorption electricity
Hold 7 to be attached on the cable body.The cable copper core is cut with scissors and is formed using copper free wire, uses the quantity of copper core for 10.
The Absorption Capacitance 7 uses safety capacitor.The value range of the safety capacitor is in 1nF between 100nF.The power electric
There is also interior external shielding layer parasitic capacitance 8 in cable, the interior external shielding layer parasitic capacitance 8 is present in the cable internal shield
Between 3 and the cable external shielding layer 5.Parasitic capacitance 12 is not necessary being, it is present between wiring, is that can not keep away
Exempt from.The material of the cable inner insulating layer 2, cable intermediate insulating layer 4 and cable outer insulation 6 uses polyvinyl chloride, poly- second
Alkene and crosslinked polyethylene；The material of the cable internal shield 3 and cable external shielding layer 5 is using red metal or the net of tin-coated copper
Shape braided fabric.
Fig. 2 is that schematic diagram is connected to motor in the utility model embodiment power cable, as shown in Fig. 2, the power cable
12 are connected with motor 11, provide power supply to motor 11,13 one end of motor housing is connected with the motor 11, outside the motor
13 other end of shell is connected with the earth.Described 9 one end of position sensor is connected with motor 11, the other end and 2 phase of signal cable
Connection.The location information of motor 11 can be transferred to Central Control Room by signal cable 10, middle control can check motor 11
Operating condition.The power cable 12 use double-shielded cable, centering is low, the whole electromagnetic interference signals of high frequency have it is good
Inhibition and absorption, and effect is obvious, distance of the signal cable 10 apart from power cable 12 is no longer restricted, signal cable 10
Interior signal can be very small because of the distortion that interference generates.
A kind of power cable for motor for preventing electromagnetic interference provided by the utility model, is isolated using double-shielded cable
On the basis of electromagnetic interference, increase Absorption Capacitance structure, Absorption Capacitance is arranged between cable external shielding layer and the earth, makes high frequency
Electromagnetic interference and harmonic wave by cable external shielding layer over the ground between capacitor absorbed, cable internal shield is connect with the earth, is made
Low frequency electromagnetic interference imports the earth by the ground connection of cable internal shield, has to the whole electromagnetic interference signals of low, high frequency in this way
Good inhibition and absorption, and effect is obvious.The utility model provides a kind of power cable for motor, can have
Effect weakens the external electromagnetic interference of cable.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
Specific case used herein is expounded the principles of the present invention and embodiment, above embodiments
Explanation be merely used to help understand the method and its core concept of the utility model；Meanwhile for the general technology of this field
Personnel, according to the thought of the present invention, there will be changes in the specific implementation manner and application range.In conclusion this theory
Bright book content should not be construed as a limitation of the present invention.
Claims (9)
1. a kind of power cable for motor for preventing electromagnetic interference, which is characterized in that including power cable ontology and Absorption Capacitance
(7), the power cable ontology is double-shielded cable, and the double-shielded cable successively includes cable copper core from inside to outside
(1), outside cable inner insulating layer (2), cable internal shield (3), cable intermediate insulating layer (4), cable external shielding layer (5) and cable
Insulating layer (6), the cable internal shield (3) are connected by extraction wire with the earth, and the cable external shielding layer (5) passes through
Extraction wire is connected with Absorption Capacitance (7) one end, and the other end of the Absorption Capacitance (7) is connected with the earth.
2. the power cable according to claim 1 for motor for preventing electromagnetic interference, which is characterized in that the extraction wire
On be provided with insulating sheath.
3. the power cable according to claim 1 for motor for preventing electromagnetic interference, which is characterized in that the Absorption Capacitance
(7) it is attached on the cable body.
4. the power cable according to claim 1 for motor for preventing electromagnetic interference, which is characterized in that the cable copper core
It cuts with scissors and forms using copper free wire, use the quantity of copper core for 10.
5. the power cable according to claim 1 for motor for preventing electromagnetic interference, which is characterized in that the Absorption Capacitance
(7) safety capacitor is used.
6. the power cable according to claim 5 for motor for preventing electromagnetic interference, which is characterized in that the safety capacitor
Value range be in 1nF between 100nF.
7. the power cable according to claim 1 for motor for preventing electromagnetic interference, which is characterized in that the power cable
It is interior there is also in external shielding layer parasitic capacitance (8), the interior external shielding layer parasitic capacitance (8) is present in the cable inner shield
Between layer (3) and the cable external shielding layer (5).
8. the power cable according to claim 1 for motor for preventing electromagnetic interference, which is characterized in that in the cable absolutely
The material of edge layer (2), cable intermediate insulating layer (4) and cable outer insulation (6) is using polyvinyl chloride, polyethylene and the poly- second of crosslinking
Alkene.
9. the power cable according to claim 1 for motor for preventing electromagnetic interference, which is characterized in that screen in the cable
The material of layer (3) and cable external shielding layer (5) is covered using red metal or the netted braided fabric of tin-coated copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821302684.0U CN208607958U (en) | 2018-08-14 | 2018-08-14 | A kind of power cable for motor for preventing electromagnetic interference |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821302684.0U CN208607958U (en) | 2018-08-14 | 2018-08-14 | A kind of power cable for motor for preventing electromagnetic interference |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208607958U true CN208607958U (en) | 2019-03-15 |
Family
ID=65680171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821302684.0U Expired - Fee Related CN208607958U (en) | 2018-08-14 | 2018-08-14 | A kind of power cable for motor for preventing electromagnetic interference |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208607958U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110070964A (en) * | 2019-04-26 | 2019-07-30 | 南安市全胤机械科技有限公司 | A kind of power cable of the crosstalk than reinforcing of decaying with pair twist functional characteristic impedance |
-
2018
- 2018-08-14 CN CN201821302684.0U patent/CN208607958U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110070964A (en) * | 2019-04-26 | 2019-07-30 | 南安市全胤机械科技有限公司 | A kind of power cable of the crosstalk than reinforcing of decaying with pair twist functional characteristic impedance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230118 Address after: Room 1113, 11th Floor, Building B1, Lugu Science and Technology Innovation and Entrepreneurship Park, No. 1698, Yuelu West Avenue, Changsha High-tech Development Zone, Changsha, Hunan Province 410205 Patentee after: Changsha Yingweiteng Electric Technology Co.,Ltd. Address before: No. 40, 43 and 44, Phase I Zone, No. 410, Torch Road, High-tech Zone, Tangshan City, Hebei Province, 063000 Patentee before: TANGSHAN PULIN YIWEI SCI-TECH CO.,LTD. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190315 |