CN213781636U - Cable with a protective layer - Google Patents

Abstract

The utility model provides a cable, include: the cable comprises a cable body, a cable core and a cable core, wherein the cable body comprises an insulating layer, a shielding layer and a transmission layer, and the transmission layer, the shielding layer and the insulating layer are sequentially arranged from inside to outside; the shielding block is arranged at the end part of the cable body, sleeved on the shielding layer and in contact connection with the shielding layer; the shielding block is used for contacting and conducting connection with a shell of the equipment so as to be connected with the shell in a grounding mode. The utility model discloses a cable shield among the prior art designs the reliability poor, the problem of difficult connection has been solved to the cable.

Description

Cable with a protective layer

Technical Field

The utility model relates to the technical field of cables, particularly, relate to a cable.

Background

The shielded wire is formed by arranging a shielding layer, such as an aluminum foil, a metal mesh and the like, in the cable. The shielding wire has good shielding and anti-interference capability when solving the radiation problem of the cable, and is widely applied to household electrical appliance units as a power supply wire or a communication wire.

The design of shielding cable at present stage is generally the design of welding out a ground wire from the shielding layer of shielded wire, because the contact position is only a point, the reliability is relatively poor, and the shielding layer breaks away from the ground wire easily and leads to the earth connection badly, and its ground wire design simultaneously, the product needs the screw fixed position, and the sample casing can't increase fixed position and need change the product mould under many circumstances, and is very inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a cable to it is poor to solve the cable shield design reliability among the prior art, the problem of difficult connection.

In order to achieve the above object, according to an aspect of the present invention, there is provided a cable including: the cable comprises a cable body, a cable core and a cable core, wherein the cable body comprises an insulating layer, a shielding layer and a transmission layer, and the transmission layer, the shielding layer and the insulating layer are sequentially arranged from inside to outside; the shielding block is arranged at the end part of the cable body, sleeved on the shielding layer and in contact connection with the shielding layer; the shielding block is used for contacting and conducting connection with a shell of the equipment so as to be connected with the shell in a grounding mode.

Further, the cable further comprises: and the locking assembly is detachably arranged on the cable body so as to fix the shielding block on the shell.

Further, the locking assembly includes: the locking block is movably arranged relative to the shielding block, wherein the locking block and the shielding block are respectively arranged on the cable bodies on the inner side and the outer side of the shell to be relatively close to and clamp the shell.

Furthermore, be equipped with the screw hole on the latch segment, be equipped with screw thread portion on the cable body, the latch segment passes through screw hole and screw thread portion screw-thread fit.

Furthermore, the surface of one side of the locking block facing the shielding block is provided with anti-skid grains.

Further, the transmission layer comprises at least one transmission line for transmitting electrical energy or signals, the cable further comprising: and the positioning assembly is arranged on the cable body so as to connect the transmission line with the shielding layer and/or the insulating layer.

Further, the positioning assembly comprises: the one end of position sleeve is equipped with the connector, and the other end of position sleeve is equipped with the throat, and wherein, the position sleeve passes through the connector and is connected with the shielding layer to make the transmission line penetrate the position sleeve and wear out from the throat from the connector, the area of throat is less than the area of connector with the radial movement of backstop transmission line along the cable body.

Furthermore, the connecting port is provided with threads, the cable body is provided with a thread part, and the positioning sleeve is in thread fit with the thread part through the connecting port.

Furthermore, the transmission lines are multiple, the throats are multiple, and the transmission lines and the throats are arranged in a one-to-one correspondence mode to penetrate through the corresponding throats respectively.

Further, along the extending direction of the cable body, at least part of the shielding layer extends out of the insulating layer, at least part of the transmission layer extends out of the shielding layer, and the shielding block is arranged on the shielding layer extending out of the insulating layer.

Further, the transmission layer comprises at least one transmission line, and the shielding layer wraps the outer side of the transmission line, wherein the shielding layer is made of aluminum foil or metal mesh.

Use the technical scheme of the utility model cable has still set up the structure that is used for ground connection specially except that this external cable, with the convenient static conduction of taking the cable itself to the underground, it is concrete, tip at the cable body is provided with the shielding piece, be equipped with a hole on this shielding piece, the shielding piece is established on the shielding layer that the cable tip stretches out the insulating layer through this pot head, in order to realize the face contact cooperation of shielding piece and shielding layer, the shielding piece adopts metal conducting material to make, in order to form electrically conductive connection with the shielding layer, the shielding layer can adopt copper mesh or tubular metal resonator, through the aforesaid setting, the shielding piece that makes can link together reliably with the shielding layer, avoid the easy disconnection of point contact or the problem of damage, the poor problem of cable shield design reliability has been solved.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 shows a schematic view of a split structure of an embodiment of a cable according to the invention;

fig. 2 shows a schematic assembly structure of an embodiment of a cable according to the invention;

fig. 3 shows a schematic view of a use installation of an embodiment of a cable according to the invention.

Wherein the figures include the following reference numerals:

10. a cable body; 11. a shielding layer; 12. an insulating layer; 20. a shielding block; 30. a locking assembly; 31. a locking block; 311. anti-skid lines; 40. a transmission line; 50. a positioning assembly; 51. a positioning sleeve; 60. a housing.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Poor in order to solve the cable shield design reliability among the prior art, the problem of difficult connection, the utility model provides a cable.

Referring to fig. 1 to 3, a cable includes: the cable comprises a cable body 10, wherein the cable body 10 comprises an insulating layer 12, a shielding layer 11 and a transmission layer, and the transmission layer, the shielding layer 11 and the insulating layer 12 are sequentially arranged from inside to outside; the shielding block 20 is arranged at the end part of the cable body 10, sleeved on the shielding layer 11 and in surface contact connection with the shielding layer 11; the shielding block 20 is used for contacting and electrically conductively connecting with the housing 60 of the device, so as to be connected to ground via the housing 60.

The utility model discloses a cable has still set up the structure that is used for ground connection specially except cable body 10, with the convenient static conduction to the underground of taking the cable itself, it is concrete, tip at cable body 10 is provided with shielding block 20, be equipped with a hole on this shielding block 20, shielding block 20 is established on cable tip stretches out shielding layer 11 of insulating layer 12 through this pot head, in order to realize shielding block 20 and shielding layer 11's face contact cooperation, shielding block 20 adopts metal conducting material to make, in order to form electrically conductive connection with shielding layer 11, shielding layer 11 can adopt copper mesh or tubular metal resonator, through the aforesaid setting, shielding block 20 and shielding layer 11 that make can link together reliably, avoid the easy disconnection of point contact or the problem of damage, the poor problem of cable shield design reliability has been solved.

The cable further includes: and a locking assembly 30, wherein the locking assembly 30 is detachably arranged on the cable body 10 to fix the shielding block 20 on the shell 60. The locking assembly 30 includes: the locking block 31 and the locking block 31 are movably disposed relative to the shielding block 20, wherein the locking block 31 and the shielding block 20 are respectively disposed on the cable body 10 at the inner side and the outer side of the housing 60 to relatively approach and clamp the housing 60. Be equipped with the screw hole on the latch segment 31, be equipped with screw thread portion on the cable body 10, the latch segment 31 passes through screw hole and screw thread portion screw-thread fit. The surface of the locking block 31 facing the shielding block 20 is provided with anti-slip lines 311.

The cable in this embodiment is further provided with a locking assembly 30 for fixing the cable on the housing 60 or other structures, the locking assembly 30 adopts a locking block 31, the above threaded hole of the locking block 31 is provided, the shielding layer 11 extending out of the insulating layer 12 is provided with a threaded structure, so that the locking block 31 can be in threaded fit connection with the insulating layer 12, and the cable moves along the extending direction of the cable body 10 to be close to or far away from the shielding block 20.

The transmission layer comprises at least one transmission line 40 for transmitting electrical energy or signals, the cable further comprising: and a positioning assembly 50, wherein the positioning assembly 50 is arranged on the cable body 10 to connect the transmission line 40 with the shielding layer 11 and/or the insulating layer 12. The positioning assembly 50 includes: and one end of the positioning sleeve 51 is provided with a connecting port, the other end of the positioning sleeve 51 is provided with a necking, wherein the positioning sleeve 51 is connected with the shielding layer 11 through the connecting port, so that the transmission line 40 penetrates into the positioning sleeve 51 from the connecting port and penetrates out from the necking, and the area of the necking is smaller than that of the connecting port so as to stop the transmission line 40 from moving along the radial direction of the cable body 10. The connecting port is provided with threads, the cable body 10 is provided with a thread part, and the positioning sleeve 51 is in thread fit with the thread part through the connecting port.

As shown in fig. 1, in this embodiment, the transmission line 40 may be a copper line or a signal line, the transmission line 40 at the end of the cable body 10 extends out of the shielding layer 11, in order to prevent the transmission line 40 at the extending portion from moving relative to the insulating layer 12 to generate friction, a positioning sleeve 51 made of plastic is provided in this embodiment, the positioning sleeve 51 may also be made of an elastic material, when specifically setting, a circular connector is provided at one end of the positioning sleeve 51 to be sleeved with the insulating layer 12, and the other end of the positioning sleeve 51 is a flat throat capable of limiting the transmission line 40 from moving in the radial direction of the cable body 10, so as to reduce the relative movement friction between the transmission line 40 and the insulating layer 12, and protect the transmission line 40 and the insulating layer 12.

The transmission lines 40 are multiple, the throats are multiple, and the transmission lines 40 and the throats are arranged in a one-to-one correspondence mode to penetrate through the corresponding throats respectively.

In this embodiment, the other end of the positioning sleeve 51 may be provided with a plurality of necks corresponding to the plurality of transmission lines 40 one to one, so as to ensure the fixing effect on the transmission lines 40 and prevent friction between the transmission lines 40 and the transmission lines 40 at the end of the cable body 10.

In addition, a plurality of wire grooves can be arranged on the necking so as to clamp the transmission line 40 in the clamping groove for fixing.

In the extending direction of the cable body 10, at least part of the shielding layer 11 extends out of the insulating layer 12, at least part of the transmission layer extends out of the shielding layer 11, and the shielding block 20 is arranged on the shielding layer 11 extending out of the insulating layer 12.

As shown in fig. 1 and 2, the cable body 10 has a portion of the shielding layer 11 exposed outside the insulating layer 12 at an end portion thereof, and then the transmission line 40 also has a portion of the exposed shielding layer 11 to be protruded to be connected to a circuit board or other control board, and the shielding block 20 and the locking block 31 are provided on the exposed shielding layer 11.

The transmission layer comprises at least one transmission line 40, and the shielding layer 11 is wrapped on the outer side of the transmission line 40, wherein the shielding layer 11 is made of aluminum foil or metal mesh.

As shown in fig. 1, the transmission layer includes two transmission lines 40, the transmission lines 40 are metal wires, the shielding layer 11 is a metal shielding net, and the insulating layer 12 is made of insulating skin or plastic.

From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects:

the utility model discloses the innermost of well cable body 10 is protected inside transmission line 40, and what wrapped up in the outside of transmission line 40 is shielding layer 11, and what wrapped up in the outside of shielding layer 11 is insulating layer 12.

Furthermore, the utility model discloses a cable still is equipped with shielding piece 20, locating component 50 and locking Assembly 30 except that cable body 10, and wherein, shielding piece 20 adopts the metal nut head, and locating component 50 adopts the plastic sleeve. The metal nut extends the metal mesh shielding layer 11 in the shielding wire into the outer nut and is fixed by welding, so that the surface contact of the metal mesh is realized, and the point contact of the existing shielding wire is replaced; the metal thread port can be matched with the inner nut to play a role in fixing and overlapping. The plastic sleeve can relatively fix the wire head which is grown out of the shielding wire after the port of the shielding wire passes through the fixing device, thereby playing the role of protecting the cable and preventing the cutting and the abrasion.

The locking assembly 30 adopts an inner nut which is a metal fixing nut, and the vertical anti-slip lines 311 can ensure that a product metal shell is tightly gripped during installation and fixation, prevent falling and ensure contact continuity.

As shown in fig. 3, the cable of the present invention is used to extend the external nut metal thread port into the housing 60 to pass through the wire hole, and the contact surface of the metal nut head is fully attached to the outside of the housing 60. The inner nut is then screwed into the metal threaded port and tightened with the contact surface of the inner nut fully abutting the interior of the housing 60. The invention leads the layer of the shielding wire to be well lapped with the shell 60 of the shell 60, forms good shielding effect, and leads the interference of the wiring into the shell 60 and flows into the ground through the grounding of the shell 60. The sizes of the metal nut head and the inner nut can be selected according to the size of the wire through hole. The size of the metal threaded port needs to be adapted to the diameter of the shielded wire.

After the end connection of the shielding wire is completed, the internal wiring of the shielding wire can be connected to the required internal wiring row.

Through the port connection design, compared with the traditional shielding wire grounding method, the shielding wire grounding method has better anti-interference capability and greatly reduces the risk of electromagnetic compatibility.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and if not stated otherwise, the terms have no special meaning, and therefore, the scope of the present invention should not be construed as being limited.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (11)

1. A cable, comprising:

the cable comprises a cable body (10), wherein the cable body (10) comprises an insulating layer (12), a shielding layer (11) and a transmission layer, and the transmission layer, the shielding layer (11) and the insulating layer (12) are sequentially arranged from inside to outside;

the shielding block (20) is arranged at the end part of the cable body (10), sleeved on the shielding layer (11) and in surface contact connection with the shielding layer (11);

wherein the shielding block (20) is used for contacting and electrically conductively connecting with a housing (60) of the device for ground connection through the housing (60).

2. The cable of claim 1, further comprising:

a locking assembly (30), wherein the locking assembly (30) is detachably arranged on the cable body (10) to fix the shielding block (20) on the shell (60).

3. The cable of claim 2, wherein the locking assembly (30) comprises:

the locking block (31) is movably arranged relative to the shielding block (20), wherein the locking block (31) and the shielding block (20) are respectively arranged on the cable body (10) on the inner side and the outer side of the shell (60) so as to be relatively close to and clamp the shell (60).

4. The cable according to claim 3, wherein the locking block (31) is provided with a threaded hole, the cable body (10) is provided with a threaded portion, and the locking block (31) is in threaded engagement with the threaded portion through the threaded hole.

5. The cable according to claim 3, characterized in that the surface of the side of the locking block (31) facing the shielding block (20) is provided with anti-slip threads (311).

6. The cable according to claim 1, wherein the transmission layer comprises at least one transmission line (40) for transmitting electrical energy or signals, the cable further comprising:

a positioning assembly (50), the positioning assembly (50) being disposed on the cable body (10) to connect the transmission line (40) with the shielding layer and/or the insulating layer.

7. The cable according to claim 6, wherein the positioning assembly (50) comprises:

the cable comprises a positioning sleeve (51), a connecting port is arranged at one end of the positioning sleeve (51), a necking is arranged at the other end of the positioning sleeve (51), the positioning sleeve (51) is connected with the shielding layer (11) through the connecting port, so that the transmission line (40) penetrates into the positioning sleeve (51) from the connecting port and penetrates out of the necking, and the area of the necking is smaller than that of the connecting port so as to stop the transmission line (40) to move along the radial direction of the cable body (10).

8. The cable according to claim 7, wherein the connection port is provided with a thread, the cable body (10) is provided with a threaded portion, and the positioning sleeve (51) is in threaded engagement with the threaded portion through the connection port.

9. The cable according to claim 7, wherein the transmission line (40) is plural, the throat is plural, and the transmission lines (40) and the throats are arranged in one-to-one correspondence to be respectively inserted into the respective throats.

10. The cable according to claim 1, wherein, in the direction of elongation of the cable body (10), at least part of the shielding layer (11) protrudes beyond the insulating layer (12), at least part of the transmission layer protrudes beyond the shielding layer (11), and the shielding block (20) is arranged on the shielding layer (11) protruding beyond the insulating layer (12).

11. The cable according to claim 1, wherein the transmission layer comprises at least one transmission line (40), and the shielding layer (11) is wrapped outside the transmission line (40), wherein the shielding layer (11) is made of aluminum foil or metal mesh.

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