CN218123068U

CN218123068U - High-shielding cable for frequency converter

Info

Publication number: CN218123068U
Application number: CN202222137976.6U
Authority: CN
Inventors: 陈玉超; 柏晶
Original assignee: Anhui Ji'an Special Wire And Cable Manufacturing Co ltd
Current assignee: Anhui Ji'an Special Wire And Cable Manufacturing Co ltd
Priority date: 2022-08-15
Filing date: 2022-08-15
Publication date: 2022-12-23
Anticipated expiration: 2032-08-15

Abstract

The utility model discloses a high-shielding cable for a frequency converter, which comprises an outer protective layer, wherein the outer protective layer comprises a rubber insulating layer, an armor layer, an outer shielding layer and a rubber inner layer; the filling inner layer is arranged inside the rubber inner layer; the cable core is arranged inside the filling inner layer; the inner layer is filled with the rubber sleeve and the inner shielding piece, the inner shielding piece is arranged inside the rubber sleeve, and the inner shielding piece comprises a fixed rubber sleeve and an inner shielding sleeve. The utility model discloses the utilization is to the design of filling the inlayer, earlier through the packing glue film as the skeleton that fixed cover was established, then embedded internal shield spare again, internal shield spare constitutes through fixed gum cover and internal shield cover, separates fixedly through each conductor wire of fixed gum cover to the cable core earlier, then recycles internal shield cover and inlays to put and form the piece together in fixed gum cover and compare the partition interval, just so carried out the independent shielding of signal equally between each conductor wire, whole cable body has just possessed high shielding nature.

Description

High-shielding cable for frequency converter

Technical Field

The utility model relates to a cable field, in particular to high shielding type is cable for frequency converter.

Background

The cable used by being connected with the frequency converter must be capable of bearing the rated current of the frequency converter, and meanwhile has better signal shielding capability, an outer shielding layer and an armor layer are arranged in an outer protective layer of the whole cable body of the traditional cable, and because the armor layer and the outer shielding layer are similar in preparation raw materials, the outer layer of the cable body is provided with shielding on two sides, but in the use process of electric signal transmission of the whole cable body, different signal transmission ports can be correspondingly connected between the conductive wires in the cable core, so that the electric signals transmitted by the conductive wires have difference, the cable core of the traditional connecting cable is separated and fixed through the filling layer, and the filling layer does not have the capability of signal shielding, so that the signal shielding effect of the whole cable body is weakened due to the fact that signal overlapping between the conductive wires cannot be eliminated.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high shielding type cable for converter to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a cable for a high-shield type frequency converter includes:

the outer protective layer comprises a rubber insulating layer, an armor layer, an outer shielding layer and a rubber inner layer;

the filling inner layer is arranged inside the rubber inner layer;

the cable core is arranged inside the filling inner layer;

the inner filling layer comprises a filling rubber sleeve and an inner shielding piece, the inner shielding piece is arranged inside the filling rubber sleeve, and the inner shielding piece comprises a fixed rubber sleeve and an inner shielding sleeve.

Preferably, the rubber insulating layer is sleeved on the outer wall of the armor layer, the armor layer is sleeved on the outer wall of the outer shielding layer, and the outer shielding layer is sleeved on the outer wall of the rubber inner layer.

Preferably, the filling rubber sleeve is sleeved on the inner wall of the rubber inner layer, and the filling rubber sleeve is sleeved on the outer wall of the fixed rubber sleeve.

Preferably, a plurality of logical grooves of separating have been seted up to the avris on fixed gum cover top, the middle part on fixed gum cover top has been seted up and has been set aside and put logical groove, set aside and put logical inslot wall and seted up a plurality of slots of placing.

Preferably, interior shield cover cup joints in inlaying and putting logical inslot, the outer wall fixedly connected with of interior shield cover has a plurality of shield plates, and is a plurality of the shield plate alternates respectively to set up in a plurality of slots of placing.

Preferably, the cable core comprises a plurality of conductive wires, and the conductive wires are respectively inserted into the middle parts of the separating through grooves and the inner shielding sleeves.

The utility model discloses a technological effect and advantage:

the utility model discloses the utilization is to the design of filling the inlayer, earlier through the packing glue film as the skeleton that fixed cover was established, then embedded internal shield spare again, internal shield spare constitutes through fixed gum cover and internal shield cover, separate fixedly through fixed gum cover to each conductor wire of cable core earlier, then reuse internal shield cover inlays to put and forms the piece together in fixed gum cover and separate the interval than, just like this the independent shielding of signal has equally been carried out between each conductor wire, whole cable body has just possessed high shielding nature, make the signal transmission of cable body more stable.

Drawings

Fig. 1 is a schematic cross-sectional view of the cable structure of the present invention.

Fig. 2 is a schematic structural view of the fixing rubber sleeve of the present invention.

Fig. 3 is a schematic structural diagram of the shielding case of the present invention.

In the figure: 1. a rubber insulating layer; 2. an armor layer; 3. an outer shield layer; 4. an inner rubber layer; 5. filling a rubber sleeve; 6. fixing a rubber sleeve; 601. separating the through grooves; 602. embedding the through groove; 603. placing the slot; 7. an inner shielding sleeve; 701. a shielding plate; 8. an electrically conductive wire.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a high shielding type cable for converter as shown in fig. 1-3, include:

the outer protective layer comprises a rubber insulating layer 1, an armor layer 2, an outer shielding layer 3 and a rubber inner layer 4;

the outer wall of armor 2 is established to rubber insulation layer 1 cover, and the outer wall of shielding layer 3 is established to armor 2 cover, and the outer wall of rubber inlayer 4 is established to shielding layer 3 cover.

The rubber insulation layer 1 is formed by blow molding of resin rubber, is a hollow sleeve, and serves as the outermost insulation protection of the whole cable structure;

armor 2 and 3 similar all use the netted shaping of weaving of metal of outer shielding layer, then outer shielding layer 3 is woven into the pipe network structure by a plurality of tinned copper wires through the establishment equipment, regards this kind of outer shielding layer 3 as outer cladding's interlaminar structure like this, has increased the communication shielding ability of cable promptly, has promoted the stability of communication, by the structural strength who has strengthened outer cladding for the skin of whole cable can be more firm.

A filling inner layer arranged inside the rubber inner layer 4;

the cable core is arranged inside the filling inner layer;

the cable core includes a plurality of conductor wires 8, and a plurality of conductor wires 8 alternate respectively and set up at a plurality of middle parts that separate logical groove 601 and inner shield cover 7, and conductor wire 8 comprises outside insulating gum cover and inside a plurality of copper line spiral winding.

The filling inner layer comprises a filling rubber sleeve 5 and an inner shielding piece, the inner shielding piece is arranged inside the filling rubber sleeve 5, and the inner shielding piece comprises a fixing rubber sleeve 6 and an inner shielding sleeve 7;

the filling rubber sleeve 5 is prepared from cross-linked polyethylene, the molecular structure of the polyethylene is changed into a three-dimensional reticular structure by a physical or chemical method, the toughness strength of the cable body is enhanced, the tensile degree of the cable body is improved, and meanwhile, the relative position of the cable core in the cable body is more stable by filling and extruding;

interior housing 7 adopts synthetic fiber and resin insulating cement to mix and pours and form, and adds metal material in synthetic fiber, for example some copper wires or zinc-plated copper wire, can isolate and the signal shielding between relative each conductor wire 8 through interior housing 7 like this for whole cable signal shielding ability is stronger.

The filling rubber sleeve 5 is sleeved on the inner wall of the rubber inner layer 4, and the filling rubber sleeve 5 is sleeved on the outer wall of the fixed rubber sleeve 6.

The avris on fixed gum cover 6 top has been seted up a plurality of logical grooves 601 of separating, and the middle part on fixed gum cover 6 top has been seted up and has been set aside and put logical groove 602, and the avris of setting aside and putting logical groove 602 inner wall has been seted up a plurality of slots 603 of placing.

Interior shield sleeve 7 cup joints in inlaying and putting logical groove 602, and a plurality of shield plates 701 of the outer wall fixedly connected with of interior shield sleeve 7, and a plurality of shield plates 701 alternate respectively and set up in a plurality of slots 603 of placing.

The utility model discloses the theory of operation: refer to fig. 1-3;

this cable passes through rubber insulation layer 1 and armor 2 forms outside protective sheath, protects the cable core structure, and later the outer shielding layer 3 of rethread carries out the external signal shielding completely cuts off, then establishes the packing inlayer through 4 covers in the rubber inlayer, then the packing gum cover 5 and the fixed gum cover 6 of packing the inlayer carry out the separation of a plurality of conductor wires 8 fixed, just can form the separation shielding between inside each conductor wire 8 through interior shield sleeve 7 and shield plate 701 after fixed.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. A cable for a high-shield type frequency converter includes:

the outer protective layer comprises a rubber insulating layer (1), an armor layer (2), an outer shielding layer (3) and a rubber inner layer (4);

a filling inner layer arranged inside the rubber inner layer (4);

the cable core is arranged inside the filling inner layer;

the novel rubber gasket is characterized in that the filling inner layer comprises a filling rubber sleeve (5) and an inner shielding piece, the inner shielding piece is arranged inside the filling rubber sleeve (5), and the inner shielding piece comprises a fixed rubber sleeve (6) and an inner shielding sleeve (7).

2. The cable for the high-shielding frequency converter according to claim 1, wherein the rubber insulating layer (1) is sleeved on the outer wall of the armor layer (2), the armor layer (2) is sleeved on the outer wall of the outer shielding layer (3), and the outer shielding layer (3) is sleeved on the outer wall of the rubber inner layer (4).

3. The cable for the high-shielding frequency converter according to claim 1, wherein the filling rubber sleeve (5) is sleeved on the inner wall of the rubber inner layer (4), and the filling rubber sleeve (5) is sleeved on the outer wall of the fixing rubber sleeve (6).

4. The cable for the high-shielding frequency converter according to claim 1, wherein a plurality of separating through grooves (601) are formed at the side of the top end of the fixed rubber sleeve (6), a embedding through groove (602) is formed at the middle part of the top end of the fixed rubber sleeve (6), and a plurality of placing slots (603) are formed at the side of the inner wall of the embedding through groove (602).

5. The cable for the high-shielding frequency converter according to claim 1, wherein the inner shielding sleeve (7) is sleeved in the embedding and placing through groove (602), the outer wall of the inner shielding sleeve (7) is fixedly connected with a plurality of shielding plates (701), and the plurality of shielding plates (701) are respectively inserted into the plurality of placing slots (603).

6. The cable for the high-shielding frequency converter according to claim 1, wherein the cable core comprises a plurality of conductive wires (8), and the conductive wires (8) are respectively inserted and arranged in the middle of the separating through grooves (601) and the inner shielding sleeve (7).