CN111312435A - Electric shock prevention cable - Google Patents
Electric shock prevention cable Download PDFInfo
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- CN111312435A CN111312435A CN202010124965.7A CN202010124965A CN111312435A CN 111312435 A CN111312435 A CN 111312435A CN 202010124965 A CN202010124965 A CN 202010124965A CN 111312435 A CN111312435 A CN 111312435A
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- layer
- insulating layer
- cable
- stretching
- electric shock
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/0009—Details relating to the conductive cores
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/02—Disposition of insulation
- H01B7/0208—Cables with several layers of insulating material
- H01B7/0225—Three or more layers
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Abstract
The invention discloses an electric shock prevention cable which comprises a battery cell layer; the inner stretching layer coats the battery cell layer and is connected with the battery cell layer in a sliding manner; the outer stretching layer covers the inner stretching layer, and the outer stretching layer is connected with the inner stretching layer in a sliding mode. According to the electric shock preventing cable, the electric core layer is connected with the inner stretching layer in a sliding mode, the outer stretching layer is connected with the electric core layer in a sliding mode, when the cable is broken, the electric core layer on one side of the broken part can retract into the inner stretching layer, the electric core layer on the other side of the broken part can retract into the outer stretching layer, the conductive electric core layer retracts inwards, the electric core can be prevented from being exposed, electric shock caused by mistaken touch is avoided, the cable is wrapped by the multiple layers of insulating layers, and the risk that the electric core is exposed caused by breakage of the insulating layers is reduced.
Description
Technical Field
The invention relates to the technical field of cables, in particular to an electric shock prevention cable.
Background
Cables are typically formed by twisting groups of conductors, each group of conductors being insulated from each other and surrounded by a highly insulating covering. But in the real life, unexpected cracked cable can make the insulating layer of self receive destruction, thereby the single-deck insulating layer is very fragile to lead to the cable to lose insulating ability, and the wire of cracked cable often exposes outside the insulating layer, thereby lets the people mistake easily touch naked wire and arouse the risk of electrocuteeing.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides the electric shock prevention cable which is good in insulation effect and capable of preventing the conducting wire from being touched by mistake.
The electric shock prevention cable comprises a battery cell layer; the inner stretching layer covers the electric core layer, and the inner stretching layer is connected with the electric core layer in a sliding mode; the outer stretching layer covers the inner stretching layer, and the outer stretching layer is connected with the inner stretching layer in a sliding mode.
According to the embodiment of the invention, the electric shock prevention cable at least has the following beneficial effects: the utility model discloses a cable, including electric core layer, interior tensile layer, outer tensile layer, electric core layer sliding connection, when the cable fracture, fracture department one side the electric core layer can be retracted in the interior tensile layer, the opposite side the electric core layer can be retracted in the outer tensile layer, electrically conductive electric core layer inwards retracts, can prevent that electric core is exposed, avoids the mistake to touch and leads to electrocuteeing, and the cable cladding is the multilayer insulating layer, reduces the insulating layer and breaks and lead to the naked risk of electric core.
According to the embodiment of the invention, the inner stretching layer comprises a first insulating layer and a plurality of first elastic connecting columns, a gap is formed between the first insulating layer and the battery core layer, one end of each first elastic connecting column is connected with the inner wall of the first insulating layer, and the other end of each first elastic connecting column is connected with the outer wall of the battery core layer.
According to the embodiment of the invention, the thickness of the first insulating layer is 0.8mm to 1.5 mm.
According to the embodiment of the invention, the external stretching layer comprises a second insulating layer and a plurality of second elastic connecting columns, a gap is arranged between the second insulating layer and the first insulating layer, one end of each second elastic connecting column is connected with the outer wall of the first insulating layer, and the other end of each second elastic connecting column is connected with the inner wall of the second insulating layer.
According to the embodiment of the invention, the thickness of the second insulating layer is 1.0 mm-2.0 mm.
According to the embodiment of the present invention, the material of the first insulating layer and the second insulating layer is polyvinyl chloride.
According to the embodiment of the invention, the material of the first elastic connecting column and the second elastic connecting column is elastic rubber.
According to the embodiment of the invention, the electric core layer comprises an outer sheath, a lining layer, a third insulating layer and a conductor, the outer sheath is connected with the first insulating layer through a first elastic connecting column, the conductor is coated by the third insulating layer, the third insulating layer is coated by the lining layer, and the third insulating layer is coated by the outer sheath.
The inner liner layer according to the embodiment of the invention is made of a flame-retardant material.
According to the embodiment of the invention, the anti-cutting yarn is also included, the inner liner layer is coated with the anti-cutting yarn, and the outer sheath is coated with the anti-cutting yarn.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic cross-sectional view of an electric shock protection cable according to an embodiment of the present invention;
fig. 2 is a schematic longitudinal sectional view of an electric shock protection cable according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a force applied to an anti-electric shock cable according to an embodiment of the present invention.
Reference numerals:
a core layer 100, an outer sheath 110, a liner layer 120, a third insulation layer 130, a conductor 140,
An inner tensile layer 200, a first insulating layer 210, a first flexible connection stud 220,
An outer tensile layer 300, a second insulating layer 310, a second elastomeric connection post 320.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, top, bottom, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplicity of description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, if there are first and second described only for the purpose of distinguishing technical features, it is not understood that relative importance is indicated or implied or that the number of indicated technical features or the precedence of the indicated technical features is implicitly indicated or implied.
In the description of the present invention, unless otherwise explicitly defined, terms such as arrangement, connection and the like should be broadly construed, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the detailed contents of the technical solutions.
An electric shock preventing cable according to an embodiment of the present invention is described below with reference to fig. 1.
As shown in fig. 1, an electric shock protection cable according to an embodiment of the present invention is described, including a cell layer 100; the battery cell comprises an inner stretching layer 200, wherein the inner stretching layer 200 covers the battery cell layer 100, and the inner stretching layer 200 is connected with the battery cell layer 100 in a sliding manner; an outer stretching layer 300, wherein the outer stretching layer 300 covers the inner stretching layer 200, and the outer stretching layer 300 is connected with the inner stretching layer 200 in a sliding way. The electric core layer 100 is a conductive layer and is positioned at the center of the cable, the surface of the electric core layer 100 is sequentially coated with the inner stretching layer 200 and the outer stretching layer 300, and under the coating action of the inner stretching layer 200 and the outer stretching layer 300, the electric core layer 100 can be well protected.
In the present embodiment, in order to enable the cell layer 100 and the inner tensile layer 200 to slide relative to each other, as shown in fig. 1 and fig. 3, the inner tensile layer 200 includes a first insulating layer 210 and a plurality of first elastic connection columns 220, a gap is provided between the first insulating layer 210 and the cell layer 100, one end of each first elastic connection column 220 is connected to an inner wall of the first insulating layer 210, and the other end is connected to an outer wall of the cell layer 100. A sufficient gap is reserved between the first insulating layer 210 and the cell layer 100, so that a sufficient sliding space can be reserved between the cell layer 100 and the first insulating layer 210, the first elastic connection column 220 is connected with the first insulating layer 210 and the cell layer 100, the first elastic connection column 220 is pulled by the first insulating layer 210 and the cell layer 100, and the first elastic connection column 220 is in a tensioning state; when the cable is in a good state, the elastic connection column is in a tensioned state, after the cable is broken, the stress balance of the cable is broken, the first elastic connection column 220 is restored to an original state from the tensioned state under the action of elastic deformation, and the first elastic column can pull the battery cell layer 100 and the first insulating layer 210 to the center of the first elastic column in the process of restoring to the original state, so that the battery cell layer 100 and the first insulating layer 210 slide and approach each other, and the battery cell layer 100 retracts into the first insulating layer 210.
In the embodiment, in order to enable the first insulating layer 210 to effectively protect the battery cell layer 100 and prevent the first insulating layer 210 from being easily scratched, as shown in fig. 1, the thickness of the first insulating layer 210 is 0.8m m-1.5 mm.
In the present embodiment, in order to enable the outer tensile layer 300 and the inner tensile layer 200 to slide relative to each other, as shown in fig. 1 and 3, the outer tensile layer 300 includes a second insulating layer 310 and a plurality of second elastic connection pillars 320, a gap is provided between the second insulating layer 310 and the first insulating layer 210, one end of each second elastic connection pillar 320 is connected to the outer wall of the first insulating layer 210, and the other end is connected to the inner wall of the second insulating layer 310. Enough space is left between the second insulating layer 310 and the first insulating layer 210 to enable enough sliding space to be left between the second insulating layer 310 and the first insulating layer 210, the second elastic connection column 320 is connected with the second insulating layer 310 and the first insulating layer 210, the second elastic connection column 320 is pulled by the second insulating layer 310 and the first insulating layer 210, and the second elastic connection column 320 is in a tensioned state; when the cable is in a good state, the elastic connection column is in a tensioned state, after the cable is broken, the stress balance of the cable is broken, the second elastic connection column 320 is restored to an original state from the tensioned state under the action of elastic deformation, and the second insulation layer 310 and the first insulation layer 210 are pulled towards the center of the second elastic column in the process of restoring the original state, so that the second insulation layer 310 and the first insulation layer 210 slide and approach each other, the second insulation layer 310 extends out, and the electric core layer 100 is prevented from being exposed.
In the present embodiment, in order to make the second insulating layer 310 effectively protect the coated first insulating layer 210, as shown in fig. 1, the thickness of the second insulating layer 310 is 1.0mm to 2.0 mm.
In the present embodiment, in order to make the first insulating layer 210 and the second insulating layer 310 have certain elasticity, as shown in fig. 2, the material of the first insulating layer 210 and the second insulating layer 310 is polyvinyl chloride. The pvc has excellent fireproof and heat-resistant effects, and can provide the first insulating layer 210 with heat resistance to some extent.
In the present embodiment, in order to make the first elastic connection column 220 and the second elastic connection column 320 have sufficient elastic force to pull the cell layer 100 back into the cable when the cable is broken, as shown in fig. 2, the material of the first elastic connection column 220 and the second elastic connection column 320 is elastic rubber. Elastic rubber has the nature that shows reversible deformation by a wide margin under the exogenic action, and when first elastic connection post 220 and second elastic connection post 320 pull power enough big, behind the cable disconnection, the resilience force of first elastic connection post 220 and second elastic connection post 320 is just bigger, and the degree of depth of dragging electric core layer 100 indentation is just darker, can be effectively inside the exposed conducting part withdrawal cable, prevents that personnel from touching by mistake and lead to the electric shock accident.
In this embodiment, in order to enable the battery cell layer 100 to have a certain insulating ability after being exposed outside the cable, as shown in fig. 1, the battery cell layer 100 includes an outer sheath 110, an inner liner 120, a third insulating layer 130 and a conductor 140, the outer sheath 110 is connected to the first insulating layer 210 through a first elastic connection column 220, the conductor 140 is covered by the third insulating layer 130, the third insulating layer 130 is covered by the inner liner 120, and the third insulating layer 130 is covered by the outer sheath 110. The core layer 100 may be one or more twisted groups, and is covered by the first insulating layer 210, and the outer sheath 110 is made of rubber, and has a certain insulating ability; the conductor 140 is further covered by a third insulating layer 130, and when the cable is broken, if the exposed cell layer 100 is not completely retracted into the cable, the third insulating layer 130 can still provide a certain insulating capability.
In the present embodiment, in order to prevent the cable short circuit from generating high temperature to cause overheating combustion of the core layer 100, as shown in fig. 1, the inner liner 120 is made of a flame retardant material. The flame retardant material is a halogen-containing polyethylene flame retardant material.
Of course, in other embodiments, a halogen-free cross-linked polyethylene flame retardant material may be used as the inner liner 120.
In this embodiment, in order to provide the cable with a certain cut-resistant capability, a cut-resistant yarn (not shown in the drawings) is further included, the cut-resistant yarn covers the inner liner 120, and the outer sheath 110 covers the cut-resistant yarn. The material of the anti-cutting yarn is glass fiber.
Of course, in other embodiments, stainless steel wire may be used as the material of the cut-resistant yarn.
The operation of the electric shock preventing cable according to the present embodiment will be described in detail. It is to be understood that the following description is only exemplary, and not a specific limitation of the invention.
When the cable is in a good state, a second elastic connection column 320 is connected between the second insulating layer 310 and the first insulating layer 210, and a first elastic connection column 220 is connected between the first insulating layer 210 and the battery cell layer 100; the first elastomeric connection column 220 and the second elastomeric connection column 320 are under tension, the tension of the second elastomeric connection column 320 being greater than the tension of the first elastomeric connection column 220. After the cable is broken, the first elastic connection column 220 and the second elastic connection column 320 are broken due to the stress balance, the first elastic connection column 220 and the second elastic connection column 320 are restored to the original state, and the electric core layer 100, the first insulation layer 210 and the second insulation layer 310 are pulled to perform corresponding sliding motion; the stress direction of the cable above is that, the cell layer 100 is pulled downwards by the first elastic connection column 220, the cell layer 100 slides downwards, the first insulation layer 210 is pulled upwards by the first elastic connection column 220 and the second elastic connection column 320, and the first insulation layer 210 moves upwards, so that the cell layer 100 retracts into the first insulation layer 210; the cable stress direction of the lower part is that, the cell layer 100 is pulled downwards by the first elastic connection column 220, the cell layer 100 slides downwards, the second insulation layer 310 is pulled downwards by the second elastic connection column 320, and the pulling force of the second elastic connection column 320 is greater than the pulling force of the first elastic connection column 220, so that the downward sliding distance of the second insulation layer 310 is greater than the downward sliding distance of the core layer 100, and the core layer 100 is located in the second insulation layer 310. After the cable is broken, the battery core layer 100 is retracted into the cable, and no conductive part is exposed outside.
According to the embodiment of the invention, the electric shock prevention cable at least has the following beneficial effects: electric core layer 100 and interior tensile layer 200 sliding connection, outer tensile layer 300 and electric core layer 100 sliding connection, when the cable fracture, the electric core layer 100 of fracture department one side can be in the indentation interior tensile layer 200, the electric core layer 100 of opposite side can be in the indentation exterior tensile layer 300, electrically conductive electric core layer 100 is inside indentation, can prevent that electric core is exposed, avoid the mistake to touch and lead to electrocuteeing, the cable cladding is the multilayer insulation layer, reduce the insulating layer and break and lead to the naked risk of electric core.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean 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 invention. In this specification, the schematic representations of the terms used above do not necessarily refer 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.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. An electric shock resistant cable, comprising:
an electric core layer (100);
an inner stretching layer (200), wherein the inner stretching layer (200) wraps the electric core layer (100), and the inner stretching layer (200) is connected with the electric core layer (100) in a sliding mode;
an outer stretching layer (300), wherein the outer stretching layer (300) covers the inner stretching layer (200), and the outer stretching layer (300) is connected with the inner stretching layer (200) in a sliding way.
2. The electric shock resistant cable as claimed in claim 1, wherein the inner stretching layer (200) comprises a first insulating layer (210) and a plurality of first elastic connection columns (220), a gap is arranged between the first insulating layer (210) and the electric core layer (100), one end of each first elastic connection column (220) is connected with the inner wall of the first insulating layer (210), and the other end of each first elastic connection column is connected with the outer wall of the electric core layer (100).
3. An electric shock protection cable according to claim 2, wherein the thickness of the first insulating layer (210) is 0.8mm to 1.5 mm.
4. The electric shock preventing cable as claimed in claim 3, wherein the outer stretching layer (300) comprises a second insulating layer (310) and a plurality of second elastic connection columns (320), a gap is formed between the second insulating layer (310) and the first insulating layer (210), one end of each second elastic connection column (320) is connected with the outer wall of the first insulating layer (210), and the other end of each second elastic connection column is connected with the inner wall of the second insulating layer (310).
5. An electric shock protection cable according to claim 4, wherein the thickness of the second insulating layer (310) is 1.0mm to 2.0 mm.
6. An electric shock protection cable according to claim 5, wherein the material of the first insulating layer (210) and the second insulating layer (310) is polyvinyl chloride.
7. An electric shock protection cable according to claim 6, wherein the material of the first and second resilient connecting posts (220, 320) is a resilient rubber.
8. The electric shock protection cable according to any one of claims 2 to 7, wherein the core layer (100) comprises an outer sheath (110), an inner liner layer (120), a third insulating layer (130) and a conductor (140), the outer sheath (110) is connected with the first insulating layer (210) through a first elastic connection column (220), the third insulating layer (130) covers the conductor (140), the inner liner layer (120) covers the third insulating layer (130), and the outer sheath (110) covers the third insulating layer (130).
9. An electric shock protection cable according to claim 8, wherein the inner liner (120) is a flame retardant material.
10. The cable of claim 9, further comprising cut resistant yarns covering the inner liner (120), wherein the outer sheath (110) covers the cut resistant yarns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010124965.7A CN111312435B (en) | 2020-02-27 | 2020-02-27 | Electric shock prevention cable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010124965.7A CN111312435B (en) | 2020-02-27 | 2020-02-27 | Electric shock prevention cable |
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| CN111312435A true CN111312435A (en) | 2020-06-19 |
| CN111312435B CN111312435B (en) | 2021-10-15 |
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| CN202010124965.7A Active CN111312435B (en) | 2020-02-27 | 2020-02-27 | Electric shock prevention cable |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07230720A (en) * | 1994-02-16 | 1995-08-29 | Sumitomo Electric Ind Ltd | Cable with flexibility and anti-shock property |
| CN204215745U (en) * | 2014-12-02 | 2015-03-18 | 山东新通电缆制造有限公司 | A kind of mining cable |
| CN109243684A (en) * | 2018-10-31 | 2019-01-18 | 长春市舜仕源科技有限公司 | It is a kind of it is shockproof, filtering and electromagnetism interference signal wire |
| CN110299224A (en) * | 2019-07-01 | 2019-10-01 | 谭兴亮 | Fire prevention composite cable |
-
2020
- 2020-02-27 CN CN202010124965.7A patent/CN111312435B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07230720A (en) * | 1994-02-16 | 1995-08-29 | Sumitomo Electric Ind Ltd | Cable with flexibility and anti-shock property |
| CN204215745U (en) * | 2014-12-02 | 2015-03-18 | 山东新通电缆制造有限公司 | A kind of mining cable |
| CN109243684A (en) * | 2018-10-31 | 2019-01-18 | 长春市舜仕源科技有限公司 | It is a kind of it is shockproof, filtering and electromagnetism interference signal wire |
| CN110299224A (en) * | 2019-07-01 | 2019-10-01 | 谭兴亮 | Fire prevention composite cable |
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| Publication number | Publication date |
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| CN111312435B (en) | 2021-10-15 |
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Address after: 523000 No. 90, xiangxidong District Road, Liaobu Town, Dongguan City, Guangdong Province Patentee after: Guangdong Guangshen Cable Co.,Ltd. Address before: 523000 building e, No. 6, guanhuang North Road, hengjiaotou village, Gaopo Town, Dongguan City, Guangdong Province Patentee before: Guangdong Guangshen Cable Co.,Ltd. |
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Application publication date: 20200619 Assignee: Guangdong Rongtong Financial Leasing Co.,Ltd. Assignor: Guangdong Guangshen Cable Co.,Ltd. Contract record no.: X2023980042474 Denomination of invention: A type of anti electric shock cable Granted publication date: 20211015 License type: Exclusive License Record date: 20230922 |
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Denomination of invention: A type of anti electric shock cable Effective date of registration: 20230926 Granted publication date: 20211015 Pledgee: Guangdong Rongtong Financial Leasing Co.,Ltd. Pledgor: Guangdong Guangshen Cable Co.,Ltd. Registration number: Y2023980059045 |