CN207217156U - A kind of Special cable for frequency converter - Google Patents
A kind of Special cable for frequency converter Download PDFInfo
- Publication number
- CN207217156U CN207217156U CN201720831949.5U CN201720831949U CN207217156U CN 207217156 U CN207217156 U CN 207217156U CN 201720831949 U CN201720831949 U CN 201720831949U CN 207217156 U CN207217156 U CN 207217156U
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- CN
- China
- Prior art keywords
- frequency converter
- layer
- insulating barrier
- shielding layer
- secondary shielding
- 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.)
- Expired - Fee Related
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- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Insulated Conductors (AREA)
Abstract
The utility model discloses a kind of Special cable for frequency converter; including protective case, insulating barrier and core; the core Surface coating has insulating barrier; secondary shielding layer is provided with the outside of the insulating barrier; winding is provided with reinforcement between the secondary shielding layer and insulating barrier, is provided with first screen layer on the outside of the secondary shielding layer, packed layer is provided between the secondary shielding layer and first screen layer; the first screen layer surface wrap is provided with reinforcement, and the reinforcement Surface coating has protective case.The utility model is by setting nickel-zinc ferrite screen layer and foil shielding layer; to reach dual shield complementation; interference of the electromagnetic signal to external environment caused by abundant shielded cable work; by setting dual reinforcement, the crushing resistance of cable can be strengthened, by setting crest acoustical cotton; noise caused by frequency converter work can effectively be absorbed; noise pollution is reduced, by setting polyurethane protective case, to strengthen the toughness of cable and wearability.
Description
Technical field
Field of cable technology is the utility model is related to, more particularly to a kind of Special cable for frequency converter.
Background technology
The electric equipment products of modern industry, most of all designs use variable-frequency motor control system, realize economizing on energy and electricity, but become
Frequency motor and control system, in use often high speed, high frequent frequency conversion, pulse current increase, easily to frequency converter
It can damage, the life-span of motor and control system can also be affected.So this requires to connect variable-frequency motor control system
Frequency-changing cable there is good resistance to surge and shield effectiveness.The screen layer of existing frequency-changing cable mainly uses copper wire copper strips group
Shielding, proof copper-wire braided shielding, copper strip shielding, proof copper-wire braided copper strip shielding are closed, though the frequency-changing cable using this shielding layer structure
So there are certain resistance to surge and shield effectiveness, but cost is too high, and cable is too heavy in itself, and higher hamonic wave easily occurs
Problem, supply voltage is set to distort, quality of voltage declines, line loss increase, in addition, frequency converter can produce very big make an uproar at work
Sound.Therefore, it is necessary to solve the above problems to invent a kind of Special cable for frequency converter.
The content of the invention
The purpose of this utility model is to provide a kind of Special cable for frequency converter, to solve what is proposed in above-mentioned background technology
Problem.
To achieve the above object, the utility model provides following technical scheme：A kind of Special cable for frequency converter, including protection
Set, insulating barrier and core, the core Surface coating have insulating barrier, are provided with secondary shielding layer on the outside of the insulating barrier, and described the
Winding is provided with reinforcement between two screen layers and insulating barrier, and first screen layer is provided with the outside of the secondary shielding layer, described
Packed layer is provided between secondary shielding layer and first screen layer, the first screen layer surface wrap is provided with reinforcement, institute
Stating reinforcement Surface coating has protective case.
Preferably, the core includes master core and by-pass core, and master core and the by-pass core is by rare earth aluminium alloy material
Material is made, and is arranged in isosceles triangle.
Preferably, the first screen layer is made up of nickel-zinc ferrite absorbing material.
Preferably, it is filled with crest acoustical cotton in the packed layer.
Preferably, the secondary shielding layer is made up of aluminum foil material.
Preferably, the insulating barrier is made up of polypropylene material.
Preferably, the protective case is made up of polyurethane material.
Technique effect of the present utility model and advantage：By setting nickel-zinc ferrite screen layer and foil shielding layer, with up to
Complementary to dual shield, interference of the electromagnetic signal to external environment caused by abundant shielded cable work is dual by setting
Reinforcement, the crushing resistance of cable can be strengthened, by setting crest acoustical cotton, can effectively absorb and be made an uproar caused by frequency converter work
Sound, noise pollution is reduced, by setting polyurethane protective case, to strengthen the toughness of cable and wearability.
Brief description of the drawings
Fig. 1 is the global sections figure that the utility model embodiment provides；
Fig. 2 is the packed layer sectional view that the utility model embodiment provides；
Fig. 3 is the reinforcement canoe sectional view that the utility model embodiment provides；
In figure：1 protective case, 2 reinforcements, 3 first screen layers, 4 packed layers, 5 secondary shielding layers, 6 insulating barriers, 7 cores.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
The utility model provides a kind of Special cable for frequency converter as Figure 1-3, including protective case 1, the and of insulating barrier 6
Core 7, the Surface coating of core 7 have insulating barrier 6, and the outside of insulating barrier 6 is provided with secondary shielding layer 5, the secondary shielding
Winding is provided with reinforcement 2 between layer 5 and insulating barrier 6, can strengthen the crushing resistance of cable, and the outside of secondary shielding layer 5 is set
First screen layer 3 is equipped with, packed layer 4, the first screen layer 3 are provided between the secondary shielding layer 5 and first screen layer 3
Surface wrap is provided with reinforcement 2, and the Surface coating of reinforcement 2 has protective case 1.
The core 7 includes master core and by-pass core, and master core and the by-pass core is made by rare earth aluminum alloy material,
On the premise of the conductance of core 7 is not influenceed, the deadweight of cable is reduced, and is arranged in isosceles triangle, to strengthen the resistance to of cable
Surge, the first screen layer 3 are made up of nickel-zinc ferrite absorbing material, to electromagnetic signal caused by absorbing cable,
Crest acoustical cotton is filled with the packed layer 4, to absorb noise caused by frequency converter work, reduction noise pollution, institute
State secondary shielding layer 5 to be made up of aluminum foil material, to completely cut off electromagnetic signal, the insulating barrier 6 is made up of polypropylene material, electrically
Insulating properties is strong, is not changed in wide frequency, and the protective case 1 is made up of polyurethane material, has good softness
Property, toughness, wearability and shock resistance.
This practical operation principle：In use, connecting cables on frequency converter, noise caused by frequency converter work can be filled out
The crest acoustical cotton filled in layer 4 absorbs, and to reduce noise pollution, and electromagnetic signal caused by cable work can be by secondary shielding layer
5 isolations, and the electromagnetic signal that part does not completely cut off can then be absorbed by first screen layer 3.
Finally it should be noted that：Preferred embodiment of the present utility model is the foregoing is only, is not limited to this
Utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art
For, it can still modify to the technical scheme described in foregoing embodiments, or to which part technical characteristic
Progress equivalent substitution, all within the spirit and principles of the utility model, any modification, equivalent substitution and improvements made etc.,
It should be included within the scope of protection of the utility model.
Claims (7)
1. a kind of Special cable for frequency converter, including protective case（1）, insulating barrier（6）And core（7）, it is characterised in that：The core
（7）Surface coating has insulating barrier（6）, the insulating barrier（6）Outside is provided with secondary shielding layer（5）, the secondary shielding layer（5）With
Insulating barrier（6）Between winding be provided with reinforcement（2）, the secondary shielding layer（5）Outside is provided with first screen layer（3）, institute
State secondary shielding layer（5）With first screen layer（3）Between be provided with packed layer（4）, the first screen layer（3）Surface wrap is set
It is equipped with reinforcement（2）, the reinforcement（2）Surface coating has protective case（1）.
A kind of 2. Special cable for frequency converter according to claim 1, it is characterised in that：The core（7）Including master core
With by-pass core, master core and the by-pass core is made by rare earth aluminum alloy material, and is arranged in isosceles triangle.
A kind of 3. Special cable for frequency converter according to claim 1, it is characterised in that：The first screen layer（3）By nickel
Zn ferrite absorbing material is made.
A kind of 4. Special cable for frequency converter according to claim 1, it is characterised in that：The packed layer（4）Inside it is filled with
Crest acoustical cotton.
A kind of 5. Special cable for frequency converter according to claim 1, it is characterised in that：The secondary shielding layer（5）By aluminium
Foil material is made.
A kind of 6. Special cable for frequency converter according to claim 1, it is characterised in that：The insulating barrier（6）By polypropylene
Material is made.
A kind of 7. Special cable for frequency converter according to claim 1, it is characterised in that：The protective case（1）By polyurethane
Material is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720831949.5U CN207217156U (en) | 2017-07-11 | 2017-07-11 | A kind of Special cable for frequency converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720831949.5U CN207217156U (en) | 2017-07-11 | 2017-07-11 | A kind of Special cable for frequency converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207217156U true CN207217156U (en) | 2018-04-10 |
Family
ID=61812941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720831949.5U Expired - Fee Related CN207217156U (en) | 2017-07-11 | 2017-07-11 | A kind of Special cable for frequency converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207217156U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102019119968A1 (en) * | 2019-07-24 | 2021-01-28 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Acoustically optimized high-voltage cable, drive train and electric vehicle |
-
2017
- 2017-07-11 CN CN201720831949.5U patent/CN207217156U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102019119968A1 (en) * | 2019-07-24 | 2021-01-28 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Acoustically optimized high-voltage cable, drive train and electric vehicle |
| DE102019119968B4 (en) | 2019-07-24 | 2024-01-25 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Acoustically optimized high voltage cable, drive train and electric vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180410 Termination date: 20210711 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |