CN220324157U

CN220324157U - Multi-core cable

Info

Publication number: CN220324157U
Application number: CN202321809738.3U
Authority: CN
Inventors: 刘金陵; 雷国刚
Original assignee: Daytone Electronics Shenzhen Co ltd
Current assignee: Daytone Electronics Shenzhen Co ltd
Priority date: 2023-07-10
Filing date: 2023-07-10
Publication date: 2024-01-09
Anticipated expiration: 2033-07-10

Abstract

The embodiment of the utility model discloses a multi-core cable, which comprises: an insulating core wire, a core wire a and an outer coating, wherein the outer coating wraps the insulating core wire and the core wire a together; the insulation core wire comprises a core wire b, and an insulation wire skin is sleeved outside the core wire b. The multi-core cable is different from the traditional multi-core cable in that each core wire is provided with the insulating wire sheath in the outer cover, the core wires in the outer cover are divided into the insulating core wires and the core wires a, the insulating core wires comprise the insulating wire sheath, the insulating wire sheath is not arranged outside the core wires a, when the insulating core wires and the core wires a are positioned in the outer cover together, the insulating core wires comprise the insulating wire sheath, and the mutual interference between the core wires a and the core wires b cannot occur, so that the inner diameter of the outer cover is effectively reduced by removing the insulating wire sheath outside the core wires a on the premise of keeping the normal operation of the cable, and the whole cable is smaller, more flexible and lighter.

Description

Multi-core cable

Technical Field

The utility model relates to the technical field of electric wires and cables, in particular to a multi-core cable.

Background

In the existing cable core wire extrusion process, an insulating layer is extruded outside a common conductor to ensure that the conductor is insulated from the outside and prevent short circuit caused by contact with other conductors.

The multi-core cable is a cable with more than one insulating core wires, in this case, when the number of the core wires is large, as shown in fig. 1 and fig. 2 of the specification, an insulating layer is extruded outside each conductor, the outer diameter of the whole cable is increased along with the increase of the number of the core wires, so that the cable becomes thicker, harder and heavier, and the cable is very inconvenient in the daily use process.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provide a multi-core cable so as to solve the defects of thicker, hard and heavy existing multi-core cables and inconvenience in daily use.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

embodiments of the present utility model provide a multi-core cable comprising: an insulating core wire, a core wire a and an outer coating, wherein the outer coating wraps the insulating core wire and the core wire a together; the insulation core wire comprises a core wire b, and an insulation wire skin is sleeved outside the core wire b.

Wherein the core wire a is at least two bare conductor wires with the same function.

Wherein, the core wire a is a power positive wire or a power negative wire.

Wherein the number of the insulating core wires is at least two.

Wherein, the core wire a is filled in the gap between the connected insulated core wires.

The cross section of the outer cover is circular, the insulating core wire and the core wire a are filled in the outer cover, and at least two points of the inner wall of the outer cover are in contact with the insulating core wire and/or the core wire a.

Wherein, insulating wire skin is also overlapped outside the core wire a.

Compared with the prior art, the multi-core cable is different from the traditional multi-core cable in that each core wire is provided with the insulating wire sheath in the outer cover, the core wires in the outer cover are divided into the insulating core wires and the core wires a, the insulating core wires comprise the insulating wire sheath, the insulating wire sheath is not arranged outside the core wires a, and when the insulating core wires and the core wires a are positioned in the outer cover together, the insulating core wires comprise the insulating wire sheath, and the mutual interference between the core wires a and the core wires b cannot occur, so that the inner diameter of the outer cover is effectively reduced by removing the insulating wire sheath outside the core wires a on the premise of keeping the normal operation of the cable, and the whole cable is smaller, more flexible and lighter.

The foregoing description is only an overview of the present utility model, and is intended to be more clearly understood as being carried out in accordance with the following description of the preferred embodiments, as well as other objects, features and advantages of the present utility model.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a first conventional cable structure of a multi-core cable according to the prior art;

fig. 2 is a second conventional cable structure of a multi-core cable according to the prior art;

FIG. 3 is a first embodiment of a multi-core cable according to the present utility model;

FIG. 4 is a second embodiment of a multi-core cable according to the present utility model;

the figure identifies the description:

1. an insulating core wire; 11. a power line positive conductor; 12. a first signal line conductor; 13. a second signal line conductor; 2. a core wire a; 21. a power line negative electrode conductor; 3. insulating wire skin; 4. and (5) coating.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and the detailed description, in order to make the objects, technical solutions and advantages of the present utility model more apparent.

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships as described based on the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be attached, detached, or integrated, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms should not be understood as necessarily being directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, one skilled in the art can combine and combine the different embodiments or examples described in this specification.

Referring to fig. 3 and 4, an embodiment of the present utility model provides a multi-core cable, which includes: the insulation core wire 1, the core wire a2 and the outer coating 4, wherein the outer coating 4 wraps the insulation core wire 1 and the core wire a2 together; wherein the insulated core wire 1 comprises a core wire b, and the core wire b is sleeved with an insulated wire cover 3.

Wherein the core wire a2 is at least two bare conductor wires having the same function. Preferably, the core wire a2 is a power supply positive wire or a power supply negative wire. Further, the number of the insulating core wires 1 is at least two, the core wires a2 are filled in the gaps where the insulating core wires 1 are connected, the cross section of the outer cover 4 is in a ring shape, the insulating core wires 1 and the core wires a2 are filled in the outer cover 4, and at least two points exist on the inner wall of the outer cover 4 to be in contact with the insulating core wires 1 and/or the core wires a 2.

Optionally, the material of the outer cover 4 may be TPE or PVC, and the material of the insulating wire cover 3 may be PP, PE, TPEE, FEP or PTFE.

In the first embodiment, as shown in fig. 3, three insulating core wires 1 are provided, wherein the core wires b are respectively a power line positive electrode conductor 11, a first signal line conductor 12 and a second signal line conductor 13, and insulating wire covers 3 are sleeved outside the insulating core wires; the core wires a2 are provided in four, and the core wires a2 are specifically the power line negative electrode conductors 21, and are uniformly filled among the insulating core wires 1. Alternatively, the core a2 may be the positive power line conductor 11, and the positive power line conductor 11 in the corresponding insulated core 1 may be replaced with the negative power line conductor 21.

In contrast to fig. 1, in this first embodiment, the power line negative electrode conductor 21 with the insulating wire sheath 3, which is a thicker power line negative electrode conductor 21 without the insulating wire sheath 3, is divided into four thinner power line negative electrode conductors 21 without the insulating wire sheath 3, so that the four thinner power line negative electrode conductors 21 without the insulating wire sheath 3 are filled in the gaps of the insulating core wire 1, that is, the four thinner power line negative electrode conductors 21 without the insulating wire sheath 3 are filled in the gaps of the power line positive electrode conductor 11, the first signal line conductor 12 and the second signal line conductor 13, and under the premise of ensuring the normal operation of the cable, unnecessary space waste in the outer cover 4 is avoided, the inner diameter of the outer cover 4 is reduced, and the whole cable is smaller, softer and lighter.

The outer diameter (od 3.0 mm) of the multi-core cable of this first embodiment in fig. 3 is 0.3mm smaller than the pre-retrofit (od 3.0 mm) compared to the conventional multi-core cable of fig. 1.

Optionally, the insulating wire cover 3 is also sleeved outside the core wire a 2.

In the second embodiment, as shown in fig. 4, three insulating core wires 1 are provided, wherein the core wires b are respectively a power line positive electrode conductor 11, a first signal line conductor 12 and a second signal line conductor 13, and insulating wire covers 3 are sleeved outside the insulating core wires; the core wires a2 are provided with two, evenly filled between the insulating core wires 1, the core wires a2 are specifically power wire negative electrode conductors 21, and insulating wire covers 3 are sleeved outside the core wires. Alternatively, the core a2 may be the positive power line conductor 11, and the positive power line conductor 11 in the corresponding insulated core 1 may be replaced with the negative power line conductor 21.

In contrast to fig. 2, in this second embodiment, the power line negative electrode conductor 21 of the thicker insulated wire sheath 3 is divided into two thinner power line negative electrode conductors 21 of the insulated wire sheath 3, so that the two thinner power line negative electrode conductors 21 of the insulated wire sheath 3 are filled in the gaps of the insulated core wire 1, that is, the two thinner power line negative electrode conductors 21 of the insulated wire sheath 3 are filled in the gaps of the power line positive electrode conductor 11, the first signal line conductor 12 and the second signal line conductor 13, and on the premise of ensuring normal operation of the cable, unnecessary space waste in the outer cover 4 is avoided, the inner diameter of the outer cover 4 is reduced, and the whole cable is smaller, softer and lighter.

The outer diameter (od 4.0 mm) of the multi-core cable of this second embodiment in fig. 4 is 0.1mm smaller than the pre-retrofit (od 4.1 mm) compared to the conventional multi-core cable of fig. 2.

While the utility model has been described with reference to certain preferred embodiments, it will be understood by those skilled in the art that various changes and substitutions of equivalents may be made and equivalents will be apparent to those skilled in the art without departing from the scope of the utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.

Claims

1. A multi-core cable, comprising: an insulating core wire, a core wire a and an outer coating, wherein the outer coating wraps the insulating core wire and the core wire a together;

the insulation core wire comprises a core wire b, and an insulation wire skin is sleeved outside the core wire b.

2. The multi-core cable according to claim 1, wherein the core wire a is at least two bare conductor wires having the same function.

3. The multi-core cable according to claim 2, wherein the core wire a is a power supply positive wire or a power supply negative wire.

4. The multi-core cable of claim 1, wherein the number of insulated cores is at least two.

5. The multi-core cable according to claim 4, wherein the core wire a is filled in a space where the insulating core wires are connected.

6. A multicore cable according to claim 1, wherein the outer envelope is circular in cross section, the insulating core and the core a are filled inside the outer envelope, and the inner wall of the outer envelope has at least two points of contact with the insulating core and/or the core a.

7. The multi-core cable of claim 1, wherein the core a is also covered with an insulating sheath.