CN214847782U - Signal cable - Google Patents
Signal cable Download PDFInfo
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- CN214847782U CN214847782U CN202120614752.2U CN202120614752U CN214847782U CN 214847782 U CN214847782 U CN 214847782U CN 202120614752 U CN202120614752 U CN 202120614752U CN 214847782 U CN214847782 U CN 214847782U
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- shielding layer
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- signal cable
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Abstract
The utility model relates to a cable, in particular to signal cable, include: the cable comprises a shielding layer, even-number wire harnesses, an insulating sheath and a supporting material; the shielding layer is arranged in a surrounding mode in the direction of a preset axis, and each wire harness is arranged in the shielding layer; the insulating sheath is coated outside the shielding layer; the supporting material is filled between the shielding layer and each signal wire harness; wherein, each pencil two by two constitutes one pair, and adjacent setting, and the interference signal that two bunches of arbitrary one produced offsets each other. Compared with the prior art, because every two bunches of pencil in the signal cable all constitute a pair ofly, and adjacent setting for two bunches of adjacent pencil produced interference each other can offset each other, thereby can effectively prevent the mutual interference of signal between pencil and the pencil in the cable, can effectively shield the signal interference of cable outside again through the shielding layer simultaneously, consequently can also effectively improve the signal shielding performance of cable when not increasing cable weight and cross sectional area.
Description
Technical Field
The utility model relates to a cable, in particular to signal cable.
Background
The signal cable is used as a cable for connecting the execution equipment and the control equipment, and aims to enable the control equipment to send signal instructions to the execution equipment so as to control the action of the execution equipment. In the elevator and robot industries, the servo motor needs to be controlled by a servo, so that the requirement on the anti-interference capability of a signal cable is high. However, in the conventional method, a signal shielding layer is added in the cable to improve the anti-interference capability of the cable, but this method can only shield the interference of external signals, and cannot shield the signals between the wire harnesses in the cable. However, if the shielding layer is added to each bundle of wires of the cable, the manufacturing cost of the cable is increased, and the weight and the cross-sectional area of the cable are increased.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a signal cable, can be when not increasing cable weight and cross sectional area, signal shielding performance that can also effectively improve.
In order to achieve the above object, an embodiment of the present invention provides a signal cable for connecting a servo motor and a server, the signal cable including:
the shielding layer is arranged in a surrounding manner around the direction of the preset axis;
n wire harnesses arranged in the shielding layer; n is an even number;
the insulating sheath is coated outside the shielding layer;
the supporting material is filled in the shielding layer and fills gaps between the shielding layer and the signal wire harnesses;
the wiring harnesses form a pair in pairs and are arranged adjacently, and interference signals generated by any two wiring harnesses in a pair are mutually offset.
The utility model discloses an embodiment is for prior art, because every two bunches of pencil in the signal cable all constitute a pair of, and adjacent setting, make adjacent two bunches of pencil produced interference each other offset, thereby can effectively prevent the mutual interference of signal between pencil and the pencil in the cable, can effectively shield the outside signal interference of cable again through the shielding layer simultaneously, consequently can be when not increasing cable weight and cross sectional area, can also effectively improve the signal shielding performance of cable.
Further, each of the wire harnesses includes: the flexible cable comprises a cable core and a flexible insulating layer coated outside the cable core.
In addition, the flexible insulating layer is a polyvinyl chloride (PVC) insulating layer.
In addition, two bundles of wires arranged adjacent to each other are twisted with each other.
In addition, each wire harness forms a pair pairwise, and each pair of wire harnesses is arranged around the preset axis in an equidistant and annular mode.
In addition, two adjacent wire harnesses are arranged adjacently around the direction of the preset axis.
In addition, the shielding layer includes: the aluminum foil shielding layer and the copper shielding layer are coated outside the aluminum foil shielding layer.
In addition, the copper shielding layer is a copper wire braided fabric formed by mutually twisting a plurality of copper wires.
In addition, the support material is cotton yarn.
In addition, the insulating sheath is a polyvinyl chloride (PVC) insulating sheath.
Drawings
Fig. 1 is a schematic structural diagram of a signal cable according to a first embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the following will explain in detail each embodiment of the present invention with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that in various embodiments of the invention, numerous technical details are set forth in order to provide a better understanding of the present application. However, the technical solutions claimed in the claims of the present application can be implemented without these technical details and with various changes and modifications based on the following embodiments.
A first embodiment of the present invention relates to a signal cable, as shown in fig. 1, including: a shielding layer 1, a plurality of bundles of wires 2, an insulating sheath 3 and a support material 4.
In the present embodiment, as shown in fig. 1, the shielding layer 1 is provided so as to surround the direction of the predetermined axis, and each of the wire harnesses 2 is provided in the shielding layer 1, and it should be noted that in the present embodiment, the number of the wire harnesses 2 is an even number.
In the present embodiment, as shown in fig. 1, the insulating sheath 3 is coated outside the shield layer 1, and the supporting member 4 is filled in the shield layer 1 to completely fill the gap between the shield layer 1 and each signal wire harness 2, so that the supporting member 4 can play a role of fixing and supporting each wire harness 2 in the shield layer 1.
In the present embodiment, each of the harnesses 2 is arranged adjacent to each other in pairs, and interference signals generated by the two harnesses 2 of any pair cancel each other out.
It can be seen from the above that, because every two bundles of wire harnesses 2 in the signal cable all constitute a pair, and the adjacent arrangement, the interference that produces between two adjacent bundles of wire harnesses 2 each other can offset each other, thereby can effectively prevent the mutual interference of signal between wire harness and the wire harness in the cable, can effectively shield the signal interference of cable outside again through shielding layer 1 simultaneously, consequently can be when not increasing cable weight and cross sectional area, can also effectively improve the signal shielding performance of cable.
Specifically, in the present embodiment, as shown in fig. 1, each wire harness 2 includes: the cable comprises a cable core 21 and a flexible insulating layer 22 coated outside the cable core 21. In the present embodiment, the flexible insulating layer 22 is a PVC insulating layer, and the PVC insulating layer can effectively insulate the wire harnesses 2 from each other. Of course, in practical applications, the flexible insulating layer 22 may be made of other materials, such as: the material of the flexible insulating layer 22 is not particularly limited in this embodiment.
In addition, in order to improve the rigidity of each wire harness 2 in the shielding layer 1, two adjacent wire harnesses 2 are twisted with each other, and each wire harness 2 forms a pair two by two, and each pair of wire harnesses 2 is arranged around the direction of the preset axis at equal intervals. Therefore, each wire harness 2 can be uniformly distributed in a direction of the preset axis in pairs, and the stress of the whole cable is ensured to be uniform.
It is worth mentioning that, as a preferred embodiment, as shown in fig. 1, two adjacent bundles of wire harnesses 2 are adjacently arranged around the direction of the preset axis, so that each wire harness 2 is arranged around the circumferential direction of the cable cross section, and thus, the distribution of each wire harness 2 is more reasonable, and the later-stage shielding layer 1 is convenient for coating each wire harness 2.
In order to improve the interference resistance of the cable of the present embodiment against external signals, as shown in fig. 1, the shield layer 1 of the present embodiment includes: aluminum foil shielding layer 11, cladding copper shielding layer 12 outside aluminum foil shielding layer 11 can realize the interference to outside low frequency signal through aluminum foil shielding layer 11, and can realize the interference to outside high frequency signal through copper shielding layer 12 to can further improve the interference killing feature of this embodiment's cable to outside signal. In the present embodiment, the copper shield layer 12 is a braided copper wire fabric in which a plurality of copper wires are twisted with each other. Of course, in practical applications, the copper shielding layer 12 may be replaced by other metal materials, such as: iron wire, steel wire and the like.
Of course, as a preferable mode, as shown in fig. 1, in order to improve the fixing and supporting performance for each wire harness 2, the supporting material 4 may adopt cotton yarn filled in the shielding layer 11, and the gaps between the wire harnesses 2 and the gaps between the shielding layer 1 and the wire harnesses 2 may be completely filled by the cotton yarn, so that the supporting performance for each wire harness 2 may be well achieved. Of course, in practical applications, the supporting material 4 may be made of other flexible insulating materials, and in the present embodiment, the material used for the supporting material 4 is not particularly limited.
In addition, in the present embodiment, the insulating sheath 3 is a polyvinyl chloride PVC insulating sheath, and in an actual manufacturing process, a PVC material may be extruded by an extrusion device to form the insulating sheath, so as to coat each wire harness. The insulating sheath 3 can also be made of other materials, such as: the rubber sheath, however, in the present embodiment, the material of the insulating sheath 3 is not particularly limited.
The embodiments of the present invention are intended to realize the specific embodiments of the present invention, and in practical applications, various changes in form and details may be made therein without departing from the spirit and scope of the present invention.
Claims (10)
1. A signal cable for connecting a servo motor and a servo, the signal cable comprising:
the shielding layer is arranged in a surrounding manner around the direction of the preset axis;
n wire harnesses arranged in the shielding layer; n is an even number;
the insulating sheath is coated outside the shielding layer;
the supporting material is filled in the shielding layer and fills gaps between the shielding layer and the signal wire harnesses;
the wiring harnesses form a pair in pairs and are arranged adjacently, and interference signals generated by any two wiring harnesses in a pair are mutually offset.
2. The signal cable of claim 1, wherein each of the wire harnesses comprises: the flexible cable comprises a cable core and a flexible insulating layer coated outside the cable core.
3. The signal cable of claim 2, wherein the flexible insulating layer is a polyvinyl chloride (PVC) insulating layer.
4. The signal cable of claim 1, wherein each adjacently disposed two strands are twisted about each other.
5. The signal cable according to any one of claims 1 to 4, wherein each of the strands forms a pair two by two, and each pair of the strands is arranged around the predetermined axis at equal intervals.
6. The signal cable of claim 5, wherein each two adjacently disposed strands are adjacently disposed about the direction of the predetermined axis.
7. The signal cable of claim 1, wherein the shielding layer comprises: the aluminum foil shielding layer and the copper shielding layer are coated outside the aluminum foil shielding layer.
8. The signal cable of claim 7, wherein the copper shield layer is a copper braid formed by twisting a plurality of copper wires with each other.
9. The signal cable of claim 1, wherein the support material is cotton yarn.
10. The signal cable of claim 1, wherein the insulating jacket is a polyvinyl chloride (PVC) insulating jacket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120614752.2U CN214847782U (en) | 2021-03-25 | 2021-03-25 | Signal cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120614752.2U CN214847782U (en) | 2021-03-25 | 2021-03-25 | Signal cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214847782U true CN214847782U (en) | 2021-11-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120614752.2U Active CN214847782U (en) | 2021-03-25 | 2021-03-25 | Signal cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214847782U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114400114A (en) * | 2021-12-14 | 2022-04-26 | 中车永济电机有限公司 | High-voltage-resistance double-shielding wire harness set suitable for IGBT control signal transmission |
-
2021
- 2021-03-25 CN CN202120614752.2U patent/CN214847782U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114400114A (en) * | 2021-12-14 | 2022-04-26 | 中车永济电机有限公司 | High-voltage-resistance double-shielding wire harness set suitable for IGBT control signal transmission |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230117 Address after: 239355 Workshop 2, Small and Medium-sized Enterprises Pioneering Park, Chuzhou High-tech Industrial Park, Tianchang City, Chuzhou City, Anhui Province Patentee after: Anhui Xinshida Cable Co.,Ltd. Address before: 289 Xinqin Road, Xinfeng village, Nanxiang Town, Jiading District, Shanghai, 201802 Patentee before: SHANGHAI STEP ELECTRIC Corp. |
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| TR01 | Transfer of patent right |