CN214847783U - Power cable - Google Patents
Power cable Download PDFInfo
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- CN214847783U CN214847783U CN202120614754.1U CN202120614754U CN214847783U CN 214847783 U CN214847783 U CN 214847783U CN 202120614754 U CN202120614754 U CN 202120614754U CN 214847783 U CN214847783 U CN 214847783U
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Abstract
The utility model relates to a cable, in particular to power cable, include: the flexible power cable comprises an insulating sheath, a flexible supporting piece, a plurality of power wiring harnesses, a plurality of signal wiring harnesses and a supporting material; the insulating sheath is arranged in a surrounding mode in the direction of the preset axis, the flexible supporting piece is arranged in the insulating sheath in the direction of the preset axis, and the insulating sheath and the flexible supporting piece are arranged coaxially; each power wire harness and each signal wire harness are arranged in the insulating sheath in a surrounding manner in the direction of the preset axis; the supporting material is filled in the insulating sheath, the supporting material fills the gaps among the insulating sheath, the power wire harnesses and the signal wire harnesses, and the supporting material also fills the gaps among the flexible supporting piece, the power wire harnesses and the signal wire harnesses. Compared with the prior art, the interference generated between two adjacent signal wire harnesses can be mutually offset, the mutual interference of signals between the signal wire harnesses in the cable can be effectively prevented, and therefore the signal shielding performance of the signal wire harnesses in the power cable can be effectively improved.
Description
Technical Field
The utility model relates to a cable, in particular to power cable.
Background
The power cable, as a cable connecting the actuator and the control device, is intended to supply the control device with electric power necessary for the operation of the actuator. Meanwhile, the control device needs to send various instructions to the execution device through a signal cable, so that the execution device can complete different actions. For example, in the elevator and robot industries, since the servo driver needs to provide power to the servo motor through the power cable, and the servo driver needs to control the operation of the servo motor through the signal cable, in order to reduce the power consumption of the equipment during operation, many manufacturers have already provided the signal cable integrated into the power cable, which can greatly reduce the weight of the equipment, thereby reducing the power consumption of the equipment during operation. However, the inventor found that, since the signal cable is used for the servo driver to send a control command to the servo motor, the cable itself needs to have strong anti-interference capability, but once the signal cable is integrated into the power cable, the anti-interference performance of the cable itself is greatly affected.
SUMMERY OF THE UTILITY MODEL
An object of the embodiment of the utility model is to provide a power cable can effectively improve the interference killing feature of cable.
In order to achieve the above object, the utility model provides an embodiment provides a power cable for connect servo motor and servo driver, its characterized in that, power cable includes:
the insulating sheath is arranged in a surrounding manner in the direction of the preset axis;
the flexible supporting piece is arranged in the insulating sheath along the direction of the preset axis;
the power wire harnesses and the signal wire harnesses are arranged in the insulating sheath in a surrounding manner around the direction of the preset axis; the signal wire harnesses are even number harnesses, and each two signal wire harnesses form a pair and are arranged adjacently;
the supporting material is filled in the insulating sheath; the support material fills a gap between the insulating sheath and each of the signal wires and the signal wires, and the support material also fills a gap between the flexible support and each of the signal wires and the signal wires.
The utility model discloses an embodiment is for prior art, because a plurality of power pencil and a plurality of signal pencil have integrateed among the power cable to, per two signal pencil all constitute a pair ofly, and adjacent setting, make adjacent two bundles of pencil produced interference each other offset, can effectively prevent the mutual interference of signal between signal pencil and the signal pencil in the cable, thereby can effectively improve the signal shielding performance of signal pencil among the power cable.
In addition, the flexible supporting pieces are sequentially arranged around the direction of the preset axis, and the signal wire harnesses are sequentially arranged around the direction of the preset axis.
In addition, the signal pencil is equipped with two bundles.
In addition, two adjacent signal wire harnesses are arranged around the direction of the preset axis;
alternatively, two signal harnesses adjacently disposed each other are twisted with each other.
In addition, each of the signal harnesses includes: the flexible cable comprises a first cable core and a first flexible insulating layer coated outside the first cable core;
each of the power harnesses includes: the flexible cable comprises a second wire core and a second flexible insulating layer coated outside the second wire core.
In addition, the first flexible insulating layer and the second flexible insulating layer are both polyvinyl chloride (PVC) insulating layers.
In addition, the diameter of the cross section of the first wire core is larger than that of the second wire core.
In addition, the support material is cotton yarn.
In addition, the power cable further includes: a shield layer disposed between the support material and the insulating jacket;
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.
Drawings
Fig. 1 is a schematic structural view of a power cable according to a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of a power cable according to a second 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.
The utility model discloses a first embodiment relates to a power cable for connect servo motor and servo driver, and, as shown in fig. 1, this embodiment's power cable includes: the cable comprises an insulating sheath 1, a flexible support 2, a plurality of power wire bundles 3, a plurality of signal wire bundles 4 and a support material 5.
As shown in fig. 1, the insulating sheath 1 is disposed around the preset axis, and the flexible supporting member 2 is disposed inside the insulating sheath 1 along the preset axis, that is, in this embodiment, the insulating sheath 1 and the flexible supporting member 2 are disposed coaxially. In addition, in the present embodiment, each power wire harness 3 and each signal wire harness 4 are disposed in the insulating sheath 1 so as to surround around the direction of the preset axis. The signal harnesses 4 are even-numbered, and are arranged adjacent to each other, forming a pair.
In the present embodiment, as shown in fig. 1, the supporting member 5 is filled in the insulating sheath 1, and the supporting member 5 completely fills the gap between the insulating sheath 1 and each of the power wires 3 and each of the signal wires 4, and at the same time, the supporting member 5 also fills the gap between the flexible stay 2 and each of the power wires 3 and each of the signal wires 4.
It can be seen from the above that, because a plurality of power harnesses 3 and a plurality of signal harnesses 4 are integrated in the power cable, and each two signal harnesses 4 form a pair and are adjacently arranged, the interference generated between two adjacent signal harnesses 4 can be mutually offset, the mutual interference of signals between the signal harnesses 4 and the signal harnesses 4 in the cable can be effectively prevented, and the signal shielding performance of the signal harnesses 4 in the power cable can be effectively improved.
Specifically, in the present embodiment, as shown in fig. 1, two signal harnesses 4 are provided in total, and each power harness 3 and each signal harness 4 are arranged in sequence around the direction of a predetermined axis. Therefore, as the power wire harnesses 3 and the signal wire harnesses 4 are sequentially arranged around the preset axis direction, the uniform stress of the whole cable can be ensured, and the flexible sheath 1 can conveniently coat the wire harnesses at the later stage.
Note that, as shown in fig. 1, the signal harnesses 4 are arranged in sequence in the direction of the predetermined axis. Also, in some embodiments, the two signal harnesses 4 disposed adjacent to each other are twisted with each other, so that the strength of each signal harness 4 in the entire cable can be further improved. Of course, in actual use, the power wire bundles 3 may be twisted with each other to increase the rigidity of the power wire bundles 3.
In the present embodiment, as shown in fig. 1, each power harness 3 includes: the wire core comprises a first wire core 31 and a first flexible insulating layer 32 wrapping the first wire core 31. And the corresponding signal harness 4 is similar to the power harness 3 in structure, specifically, the signal harness 4 includes: a second wire core 41 and a second flexible insulating layer 42 coated outside the second wire core 41. In the present embodiment, the first flexible insulating layer 32 and the second flexible insulating layer 42 are both made of PVC insulating layers, and the power wire harness 3 and the signal wire harness 4 can be effectively insulated from each other by the PVC insulating layers. Of course, in practical applications, the first flexible insulating layer 32 and the second flexible insulating layer 42 may be made of other materials, such as: the material of the rubber is not particularly limited in the present embodiment, but the materials of the first flexible insulating layer 32 and the second flexible insulating layer 42 are not particularly limited.
In addition, since the signal wire harness 4 is used for the servo driver to send a control command to the servo motor, the requirement on the withstand voltage of the signal wire harness 4 is low, and therefore, in the present embodiment, in order to reduce the power consumption of the device, the second wire core 42 may be thinned, so that the cross-sectional diameter of the first wire core 31 is larger than that of the second wire core 42, and thus the power consumption of the device during operation may be greatly reduced without affecting the normal operation of the servo driver and the servo motor.
Of course, as a preferable mode, as shown in fig. 1, in order to improve the fixing and supporting performance for each of the power wire bundles 3 and the signal wire bundles 4, cotton yarn filled in the insulating sheath 1 may be used as the supporting material 5, and the gap between each of the signal wire bundles 4 and the power wire bundles 3 may be completely filled by the cotton yarn, so that the supporting performance for each of the signal wire bundles 4 and the power wire bundles 3 may be well achieved. Of course, in practical applications, the supporting material 5 may also be made of other flexible insulating materials, such as rubber particles, and in the present embodiment, the material used for the supporting material 5 is not particularly limited.
In addition, in the present embodiment, the insulating sheath 1 is a PVC insulating sheath, and the flexible supporting member 2 is a PVC supporting member, and in an actual manufacturing process, PVC materials may be extruded by an extruding device to form the insulating sheath 1 and the flexible supporting member 2, so as to coat and flexibly support the signal wire harness 4 and the power wire harness 3. Of course, in practical applications, the insulating sheath 1 and the flexible supporting member 2 may be made of other materials, such as: the material of the rubber is not particularly limited in the present embodiment, but the materials of the insulating sheath 1 and the flexible supporting member 2 are not particularly limited.
A second embodiment of the present embodiment relates to a power cable, which is a further improvement of the first embodiment, and is mainly improved in that, in order to improve the interference resistance of the cable of the present embodiment against external signals, as shown in fig. 2, the power cable of the present embodiment further includes: a shield layer 6 provided between the support material 5 and the insulating sheath 1, and, in the present embodiment, as shown in fig. 2, the shield layer 6 includes: aluminium foil shielding layer 61, cladding copper shielding layer 62 outside aluminium foil shielding layer 61 can realize the interference to outside low frequency signal through aluminium foil shielding layer 61, and can realize the interference to outside high frequency signal through copper shielding layer 62 to can further improve the interference killing feature of this embodiment's cable to outside signal. In the present embodiment, the copper shield layer 62 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 62 can be replaced by other metal materials, such as: iron wire, steel wire and the like.
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 power cable for connecting a servo motor and a servo driver, the power cable comprising:
the insulating sheath is arranged in a surrounding manner in the direction of the preset axis;
the flexible supporting piece is arranged in the insulating sheath along the direction of the preset axis;
the power wire harnesses and the signal wire harnesses are arranged in the insulating sheath in a surrounding manner around the direction of the preset axis; the signal wire harnesses are even number harnesses, and each two signal wire harnesses form a pair and are arranged adjacently;
the supporting material is filled in the insulating sheath; the support material fills a gap between the insulating sheath and each of the power beams and each of the signal beams, and the support material also fills a gap between the flexible support and each of the power beams and each of the signal beams.
2. The power cable of claim 1, wherein each of the power strands and each of the signal strands are arranged in series about a direction of a predetermined axis.
3. The power cable of claim 2, wherein the signal harness is provided in two bundles.
4. The power cable as claimed in claim 2 or 3, wherein two adjacent signal harnesses are arranged in a row around the direction of the preset axis;
alternatively, two signal harnesses adjacently disposed each other are twisted with each other.
5. The power cable of claim 1, wherein each of the signal harnesses comprises: the flexible cable comprises a first cable core and a first flexible insulating layer coated outside the first cable core;
each of the power harnesses includes: the flexible cable comprises a second wire core and a second flexible insulating layer coated outside the second wire core.
6. The power cable of claim 5, wherein the first and second flexible insulating layers are both polyvinyl chloride (PVC) insulating layers.
7. The power cable of claim 5, wherein the first core has a cross-sectional diameter greater than a cross-sectional diameter of the second core.
8. The power cable of claim 1, wherein the support material is cotton yarn.
9. The power cable of claim 1, further comprising: a shield layer disposed between the support material and the insulating jacket;
the shielding layer includes: the aluminum foil shielding layer and the copper shielding layer are coated outside the aluminum foil shielding layer.
10. The power cable of claim 9, wherein the copper shield layer is a copper braid formed by twisting a plurality of copper wires with each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120614754.1U CN214847783U (en) | 2021-03-25 | 2021-03-25 | Power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120614754.1U CN214847783U (en) | 2021-03-25 | 2021-03-25 | Power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214847783U true CN214847783U (en) | 2021-11-23 |
Family
ID=78759901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120614754.1U Active CN214847783U (en) | 2021-03-25 | 2021-03-25 | Power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214847783U (en) |
-
2021
- 2021-03-25 CN CN202120614754.1U patent/CN214847783U/en active Active
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