CN218568454U - Flexible flexible cable for energy storage system - Google Patents
Flexible flexible cable for energy storage system Download PDFInfo
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- CN218568454U CN218568454U CN202222952482.3U CN202222952482U CN218568454U CN 218568454 U CN218568454 U CN 218568454U CN 202222952482 U CN202222952482 U CN 202222952482U CN 218568454 U CN218568454 U CN 218568454U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
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- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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Abstract
The utility model belongs to the technical field of wire and cable, a flexible cable for among energy storage system is disclosed. The cable comprises a conductor unit, wherein the conductor unit comprises a plurality of conductor strands, the conductor strands comprise a center conductor bundle and 4-5 edge conductor bundles, the edge conductor bundles are arranged and twisted at intervals in the circumferential direction of the center conductor bundle, the center conductor bundle and the edge conductor bundles respectively comprise a center conductor and 4-5 edge conductors, the edge conductors are arranged and twisted at intervals in the circumferential direction of the center conductor bundle, and the center conductor and the edge conductors respectively comprise a plurality of monofilaments with the diameters of 0.096mm-0.102 mm. Through setting up 4-5 edge conductor bundles and 4-5 edge conductor, can increase the space between the edge conductor bundle and between the edge conductor, reduce the squeezing action between the inner structure when crooked cable, prolong the life of cable, through setting up thinner monofilament, can strengthen the compliance of cable, the connection stability of reinforcing cable.
Description
Technical Field
The utility model relates to a wire and cable technical field especially relates to a flexible cable for among energy storage system.
Background
In an energy storage system, a cable product, which is an important component of the energy storage system, should have certain safety performance, so as to ensure the safety of the energy storage system. Energy storage system has two major types of cable products at present, and one is power management cable system, and another is the battery connecting wire, has the battery among the energy storage system, and the battery connecting wire needs to be connected with the connection copper bar of battery, if the battery connecting wire is connected unstably with the connection copper bar of battery, will produce the potential safety hazard in the energy storage system, and this makes the stability that the connection copper bar of battery connecting wire and battery is connected become very important.
In prior art, most cables are all relatively stiff, and can have narrow and small space among the energy storage system of the great majority, and stiff cable can be in narrow and small space (for example the corner) can't crooked use, appears the cable easily and is connected unstable problem with parts such as battery to influence energy storage system's normal operating.
Therefore, it is desirable to provide a flexible electrical cable for use in an energy storage system to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve because the cable is not soft enough and can't use in narrow and small space to influence the problem that cable and other parts connection stability, provide a flexible cable for among the energy storage system, can increase the compliance of cable, make the cable can be used for narrow and small space, thereby improve the security that the cable used.
To achieve the purpose, the utility model adopts the following technical proposal:
a flexible cable for use in an energy storage system, comprising:
a conductor unit including a plurality of conductor strands, the conductor strands including a center conductor bundle and 4-5 edge conductor bundles, a plurality of the edge conductor bundles being arranged and twisted at intervals around a circumferential direction of the center conductor bundle, the center conductor bundle and the edge conductor bundles each including a center conductor and 4-5 edge conductors, a plurality of the edge conductors being arranged and twisted at intervals around a circumferential direction of the center conductor, the center conductor and the edge conductors each including a plurality of monofilaments having a diameter of 0.096mm-0.102 mm.
Preferably, the conductor strands include a center conductor strand and six edge conductor strands, which are arranged and twisted around a circumferential direction of the center conductor strand.
Preferably, a twisting direction of the monofilament around a central axis of the center conductor or the edge conductor, a twisting direction of the edge conductor around the center conductor, and a twisting direction of the edge conductor bundle around the center conductor bundle are the same.
Preferably, the twisting direction of the edge conductor strand around the center conductor strand is opposite to the twisting direction of the edge conductor bundle around the center conductor bundle.
Preferably, a twisting direction of the monofilament around a central axis of the center conductor or the edge conductor, a twisting direction of the edge conductor around the center conductor, and a twisting direction of the edge conductor bundle around the center conductor bundle are Z-directions, and a twisting direction of the edge conductor strand around the center conductor bundle is S-direction.
Preferably, the conductor unit has a nominal cross-sectional area of 70mm 2 。
Preferably, a stranding pitch of the monofilament around a central axis of the center conductor or the edge conductor is 20 to 25mm, a stranding pitch of the edge conductor around the center conductor is 48 to 55mm, a stranding pitch of the edge conductor bundle around the center conductor bundle is 110 to 120mm, and a stranding pitch of the edge conductor strand around the center conductor bundle is 135 to 145mm.
Preferably, the pitch-to-diameter ratio of the central conductor or the edge conductor is 25 to 32, the pitch-to-diameter ratio of the central conductor bundle or the edge conductor bundle is 25 to 30, the pitch-to-diameter ratio of the central conductor strand or the edge conductor strand is 23 to 28, and the pitch-to-diameter ratio of the conductor unit is 10 to 12.
Preferably, the center conductor and the edge conductor each include 48 monofilaments.
Preferably, the flexible cable used in the energy storage system further includes an insulating layer, the insulating layer is disposed on an outer peripheral side of the conductor unit, and a material of the insulating layer is silicone rubber.
The utility model has the advantages that:
the utility model provides a flexible cable for among energy storage system through setting up 4-5 edge conductor and restrainting and 4-5 edge conductor, can increase the space between the edge conductor and between the edge conductor, can increase the extruded space of buffering between the edge conductor and between the edge conductor, has reduced mutual extrusion to can increase the crooked degree of cable when crooked cable. Through the structure, the mutual friction between the edge conductor bundles and between the edge conductors is reduced, and the service life of the cable is prolonged. By arranging the monofilaments with the thickness of 0.096mm to 0.102mm, the flexibility of the internal structure of the cable can be enhanced, and the use of thinner monofilaments can improve the bending capability of the cable in the bending process. The cable can be suitable for the energy storage system, most energy storage systems have narrow space, the stability of wiring between the cable and the battery in the energy storage system can be enhanced, and the safe operation work of the energy storage system is guaranteed.
Drawings
Fig. 1 is a schematic view of the overall structure of a flexible cable used in an energy storage system according to the present invention;
fig. 2 is a schematic structural view of a conductor strand of a flexible cable for use in an energy storage system according to the present invention;
fig. 3 is a schematic diagram of a center conductor bundle or an edge conductor bundle of a flexible cable for use in an energy storage system according to the present invention.
In the figure:
1. a conductor strand; 11. a center conductor strand; 12. an edge conductor strand; 111. a central conductor bundle; 112. an edge conductor bundle; 1111. a center conductor; 1112. an edge conductor; 2. an insulating layer.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", and the like are used based on the orientations and positional relationships shown in the drawings, and are only for convenience of description and simplification of operation, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
As shown in fig. 1 to 3, the present invention provides a flexible cable for use in an energy storage system, the cable including a conductor unit, the conductor unit including a plurality of conductor strands 1, the conductor strands 1 including a center conductor bundle 111 and 4-5 edge conductor bundles 112, the plurality of edge conductor bundles 112 being spaced and twisted around a circumference of the center conductor bundle 111, the center conductor bundle 111 and the edge conductor bundles 112 each including a center conductor 1111 and 4-5 edge conductors 1112, the plurality of edge conductors 1112 being spaced and twisted around a circumference of the center conductor 1111, the center conductor 1111 and the edge conductors 1112 each including a plurality of monofilaments having a diameter of 0.096mm-0.102 mm.
According to the flexible cable for the energy storage system provided by the embodiment, by arranging 4-5 edge conductor bundles 112 and 4-5 edge conductors 1112, gaps between the edge conductor bundles 112 and between the edge conductors 1112 can be increased, a buffer extrusion space can be increased between the edge conductor bundles 112 and between the edge conductors 1112 when the cable is bent, and mutual extrusion is reduced, so that the bending degree of the cable can be improved, and the flexibility of the cable is effectively increased. Through the structure, the mutual friction between the edge conductor bundles 112 and the edge conductors 1112 is reduced, and the service life of the cable is prolonged. The flexibility of the internal structure of the cable can be enhanced by arranging the 0.096mm-0.102mm monofilaments, the thinner monofilaments are convenient for processing and manufacturing the wires and cables, and the bending capability of the cable can be improved in the bending process. The cable can be suitable for the energy storage system, the energy storage system has a plurality of narrow spaces, the cable can enhance the stability of wiring between the cable and the battery in the energy storage system, and the safe operation work of the energy storage system is guaranteed.
As shown in fig. 1, the conductor strand 1 includes a center conductor strand 11 and six edge conductor strands 12, the six edge conductor strands 12 being arranged and twisted around the circumferential direction of the center conductor strand 11. Through the structure arrangement, the overall structure of the conductor unit is more compact due to the six edge conductor strands 12, the roundness of the conductor unit can be increased, the conductor unit is not easy to loosen, and the tightness and the roundness are ensured on the premise of improving the flexibility.
In the present embodiment, the twisting direction of the monofilament around the central axis of the center conductor 1111 or the edge conductor 1112, and the twisting direction of the edge conductor 1112 around the center conductor 1111 are the same as the twisting direction of the edge conductor bundle 112 around the center conductor bundle 111. Through the structure setting, the flexibility of the conductor structure in the cable is better by twisting in the same direction, the sliding allowance between each single wire, between each edge conductor 1112 and between each edge conductor bundle 112 is very large, the bending resistance is small, compared with the left-hand twisting and right-hand twisting of one layer of a common conductor, the conductor twisted in the same direction is softer, the flexibility of the cable is enhanced, the cable can be applied to an energy storage system, the stability of wiring between the cable and a battery is ensured, and the safety and stability of the use of the energy storage system are ensured.
Further, in the present embodiment, the stranding direction of the edge conductor strand 12 around the center conductor strand 11 is opposite to the stranding direction of the edge conductor bundle 112 around the center conductor bundle 111. Because the position between the stranded conductor can not be fixed by the internal homodromous twisting, the appearance is difficult to keep round, and through the structure setting, the position of the conductor strand 1 is more stable, the conductor unit is prevented from being loose easily in the twisting process, and the outer diameter of the conductor unit is more uniform and round.
Specifically, in the present embodiment, as shown in fig. 2 to 3, the twisting direction of the monofilament around the central axis of the center conductor 1111 or the edge conductor 1112, the twisting direction of the edge conductor 1112 around the center conductor 1111, and the twisting direction of the edge conductor bundle 112 around the center conductor bundle 111 are Z directions, and as shown in fig. 1, the twisting direction of the edge conductor strand 12 around the center conductor strand 11 is S direction.
Alternatively, the twisting direction of the monofilament around the central axis of the center conductor 1111 or the edge conductor 1112, the twisting direction of the edge conductor 1112 around the center conductor 1111, and the twisting direction of the edge conductor bundle 112 around the center conductor bundle 111 may also be S-direction, and the twisting direction of the edge conductor strand 12 around the center conductor strand 11 may also be Z-direction.
Specifically, the Z direction is a right-hand twisting direction, i.e., a clockwise direction; the S direction is a left direction twisting direction, i.e., a counterclockwise direction.
In this embodiment, the nominal cross-sectional area of the conductor unit is 70mm 2 . Of course, in other embodiments, the conductor unit may be provided with other nominal cross-sectional areas, and is not limited in particular.
Further, the twisting pitch of the monofilaments around the central axis of the center conductor 1111 or the edge conductor 1112 is 20 to 25mm, the twisting pitch of the edge conductor 1112 around the center conductor 1111 is 48 to 55mm, the twisting pitch of the edge conductor bundle 112 around the center conductor bundle 111 is 110 to 120mm, and the twisting pitch of the edge conductor strand 12 around the center conductor strand 11 is 135 to 145mm. Increasing the lay pitch also does not affect the flexibility of the cable because of the increased spacing between the edge conductors 1112 and between the edge conductor bundles 112. Through the structure, the retraction function among the conductor layers can be improved, and the terminal is convenient to crimp.
Further, the pitch ratio of the center conductor 1111 or the edge conductor 1112 is 25 to 32, the pitch ratio of the center conductor bundle 111 or the edge conductor bundle 112 is 25 to 30, the pitch ratio of the center conductor strand 11 or the edge conductor strand 12 is 23 to 28, and the pitch ratio of the conductor unit is 10 to 12. Through the structure, the cable is not easy to loosen, the tightness is increased, meanwhile, the flexibility of the conductor is effectively improved, the cable can be effectively applied to an energy storage system, the stability of wiring between the cable and a battery is ensured, and the safety stability of the energy storage system is enhanced.
Specifically, the pitch diameter ratio is a pitch/outer diameter, and the stranding outer diameter of the conductor unit is 12.5mm ± 0.3mm. The pitch-diameter ratio of the stranded wires of the conventional 6-type conductor is 20-30, the complex twist pitch-diameter ratio is 18-28, the conductor with the smaller pitch-diameter ratio is tighter in twisting, the conductor structure is more stable, and the conductor has better bending property and is softer. By setting the pitch ratio of the conductor unit to 10 to 12, the flexibility of the conductor can be effectively improved while increasing the compactness.
Specifically, the center conductor 1111 and the edge conductor 1112 each include 48 monofilaments, and the conductor unit as a whole includes 8400 monofilaments. Of course, in other embodiments, the number of the monofilaments may be set to other numbers, and is not limited herein.
In this embodiment, the flexible cable used in the energy storage system further includes an insulating layer 2, the insulating layer 2 is disposed on the outer peripheral side of the conductor unit, and the material of the insulating layer 2 is silicon rubber. Conventional cables commonly employ PVC and radiation crosslinked polyolefins. PVC has poor weather resistance, is easy to crack and influence the service life after long-time work, and contains halogen in the components and is not environment-friendly. Radiation cross-linked polyolefins are more stable, but the materials are harder and less flexible. Through setting up the silicon rubber, can increase insulating layer 2's temperature tolerance and compliance, can be applied to effectively in energy storage system, guaranteed the stability of wiring between cable and the battery, strengthened energy storage system's safety and stability, can promote the temperature resistant grade to 180 ℃ by the 90 ℃ that adopts PVC or the 125 ℃ that adopts irradiation crosslinked polyolefin, because the current-carrying capacity of cable is higher, temperature also can rise, better temperature tolerance also is convenient for the cable and promotes the current-carrying capacity.
Specifically, the silicone rubber is platinum vulcanized gas rubber, the silicone rubber formula adopts platinum vulcanizing agent A of 0.6%, agent B of 1% and heat-resistant agent of 0.2%, and after an open mill is started for mixing and rolling, the silicone rubber is sliced and extruded for use. The lower the Shore hardness value, the softer the material, the Shore hardness of the silicone rubber prepared by the formula was 40A, while the Shore hardness of the conventional silicone rubber was 70A-85A. Because the material is softened, the gel content of the material is increased, the extrusion temperature is high, and the problems of swelling, hollowness, over-vulcanization and the like of the material are easily caused, so the extrusion temperature is changed from 450 ℃, 300 ℃ to 380 ℃, 280 ℃ and 200 ℃ which are sequentially arranged from front to back of a machine head, the material is extruded and then cooled, the surface of the silicon rubber can be smooth and round, and air holes can not be generated on the section of the silicon rubber. Through above-mentioned structure setting, insulating layer 2 is more soft and heat-resisting, and the cable also can further increase the compliance, can be applied to energy storage system effectively, has guaranteed the stability of wiring between cable and the battery, has strengthened energy storage system's safety and stability nature.
Preferably, the silicon rubber is natural silicon rubber, the purity and the cleanliness are higher, and the performance of the cable can be prevented from being reduced due to the fact that color paste and color master are mixed into the silicon rubber insulating layer 2.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements and substitutions will now occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. 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 claims of the present invention.
Claims (10)
1. A flexible cable for use in an energy storage system, comprising:
a conductor unit comprising a number of conductor strands (1), the conductor strands (1) comprising a center conductor bundle (111) and 4-5 edge conductor bundles (112), a plurality of the edge conductor bundles (112) being spaced and twisted around a circumferential direction of the center conductor bundle (111), the center conductor bundle (111) and the edge conductor bundles (112) each comprising a center conductor (1111) and 4-5 edge conductors (1112), a plurality of the edge conductors (1112) being spaced and twisted around a circumferential direction of the center conductor (1111), the center conductor (1111) and the edge conductors (1112) each comprising a number of monofilaments having a diameter of 0.096mm-0.102 mm.
2. The flexible cable for use in an energy storage system according to claim 1, wherein the conductor strand (1) comprises a center conductor strand (11) and six edge conductor strands (12), the six edge conductor strands (12) being arranged and stranded around a circumferential direction of the center conductor strand (11).
3. The flexible cable for use in an energy storage system of claim 2, wherein a stranding direction of the monofilaments about a central axis of the center conductor (1111) or the edge conductor (1112), a stranding direction of the edge conductor (1112) about the center conductor (1111) is the same as a stranding direction of the edge conductor bundle (112) about the center conductor bundle (111).
4. The flexible cable for use in an energy storage system of claim 3, wherein the stranding direction of the edge conductor strands (12) around the center conductor strand (11) is opposite to the stranding direction of the edge conductor bundle (112) around the center conductor bundle (111).
5. The flexible cable for use in an energy storage system of claim 2, wherein the direction of stranding the monofilaments about the central axis of the center conductor (1111) or the edge conductor (1112), the direction of stranding the edge conductor (1112) about the center conductor (1111), and the direction of stranding the edge conductor bundle (112) about the center conductor bundle (111) are Z-direction, and the direction of stranding the edge conductor strand (12) about the center conductor strand (11) is S-direction.
6. Flexible cable for use in an energy storage system according to claim 2, characterized in that the conductor unit has a nominal cross-sectional area of 70mm 2 。
7. The flexible cable for use in an energy storage system of claim 6, wherein a stranding pitch of the monofilaments about a central axis of the center conductor (1111) or the edge conductor (1112) is 20-25mm, a stranding pitch of the edge conductor (1112) about the center conductor (1111) is 48-55mm, a stranding pitch of the edge conductor bundle (112) about the center conductor bundle (111) is 110-120mm, and a stranding pitch of the edge conductor strand (12) about the center conductor strand (11) is 135-145mm.
8. Flexible flexible cable for use in energy storage systems according to claim 7 characterized in that the pitch ratio of the center conductor (1111) or edge conductor (1112) is 25-32, the pitch ratio of the center conductor bundle (111) or edge conductor bundle (112) is 25-30, the pitch ratio of the center conductor strand (11) or edge conductor strand (12) is 23-28 and the pitch ratio of the conductor unit is 10-12.
9. The flexible cable for use in an energy storage system of claim 1, wherein the center conductor (1111) and the edge conductor (1112) each comprise 48 monofilaments.
10. The flexible cable used in the energy storage system according to claim 1, further comprising an insulating layer (2), wherein the insulating layer (2) is provided on an outer peripheral side of the conductor unit, and a material of the insulating layer (2) is silicon rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222952482.3U CN218568454U (en) | 2022-11-07 | 2022-11-07 | Flexible flexible cable for energy storage system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222952482.3U CN218568454U (en) | 2022-11-07 | 2022-11-07 | Flexible flexible cable for energy storage system |
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| Publication Number | Publication Date |
|---|---|
| CN218568454U true CN218568454U (en) | 2023-03-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222952482.3U Active CN218568454U (en) | 2022-11-07 | 2022-11-07 | Flexible flexible cable for energy storage system |
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| CN (1) | CN218568454U (en) |
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2022
- 2022-11-07 CN CN202222952482.3U patent/CN218568454U/en active Active
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