CN213752015U - High-voltage shielding cable for connecting storage battery in electrical equipment - Google Patents
High-voltage shielding cable for connecting storage battery in electrical equipment Download PDFInfo
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- CN213752015U CN213752015U CN202022967398.XU CN202022967398U CN213752015U CN 213752015 U CN213752015 U CN 213752015U CN 202022967398 U CN202022967398 U CN 202022967398U CN 213752015 U CN213752015 U CN 213752015U
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Abstract
The utility model relates to the technical field of cables, a high-voltage shielded cable is used in connection of electrical equipment internal storage battery is disclosed, its power sinle silk conductor unit, insulating layer, semi-conductive insulation shielding layer, composite metal shielding layer, glass fiber area isolation layer and restrictive coating including coaxial distribution. The composite metal shielding layer is a composite shielding layer formed by a longitudinal aluminum/plastic-coated composite belt shielding layer and a tinned copper wire braided shielding layer. The utility model discloses an electrical equipment is high-voltage shielded cable for internal storage battery connection has excellent electrical property, and withstand voltage level reaches 3kV, can bear the impulse voltage who reaches 10kV for a short time simultaneously, and high temperature and high pressure resistant has excellent electromagnetic field shielding performance when high temperature high pressure operation moreover.
Description
Technical Field
The utility model relates to the technical field of cables, particularly to an electrical equipment internal storage battery connects and uses high-voltage shielded cable.
Background
The cable is the most important carrier for power transmission and electrical connection, and is formed by cabling one or more mutually insulated copper conductors (or nickel-plated copper conductors) through a cabling machine, then functional layers such as a shielding layer, a fireproof smoke suppression layer, an isolation layer and a steel sleeve/armor layer are arranged outside a cable core, and finally a sheath layer such as a PVC or polyethylene sheath layer is extruded on the outermost layer to serve as outer protection, so that a cable structure with the electrical insulation, wear resistance, fireproof and waterproof properties is manufactured, and the transmission and distribution of electric energy or the transmission of weak electric signals are realized under various scenes.
At present, with the development of new energy vehicles and battery industries all over the world, storage batteries are increasingly used in more and more industrial applications, particularly storage batteries with high performance, high capacity and high power are used as energy sources, and cables used in electrical equipment and vehicles have higher requirements on the transmission performance of traditional cables along with the improvement of charging and discharging current and power and the improvement of high temperature resistance and shielding performance.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an electrical equipment is high-pressure shielded cable for internal storage battery connection, high pressure and high temperature resistant to have excellent electromagnetic field shielding performance when high temperature high pressure operation.
In order to achieve the above object, a first aspect of the present invention provides a high-voltage shielded cable for connecting an internal battery of an electrical apparatus, including:
the power wire core conductor unit is of a circular section;
the insulating layer is arranged on the outer layer of the power wire core conductor unit;
the semiconductive insulating shielding layer is arranged on the outer layer of the insulating layer;
a composite metal shield layer disposed exterior to the semiconductive insulation shield layer;
the glass fiber band isolation layer is arranged outside the composite metal shielding layer; and
the sheath layer is arranged outside the glass fiber tape isolation layer;
the composite metal shielding layer is a composite shielding layer formed by longitudinally wrapping an aluminum/plastic composite belt shielding layer and a tinned copper wire braided shielding layer, steel/plastic composite belt embossing is used as a substrate and longitudinally wraps the periphery of an integral structure formed by the power wire core conductor unit, the insulating layer and the semi-conductive insulating shielding layer, plastic layers are melted and bonded together through heating, and then a tinned copper wire and aramid fiber mixed braided net is arranged on the outer layer of the steel/plastic composite belt to form the composite shielding layer;
the power line core conductor unit, the insulating layer, the semi-conductive insulating shielding layer, the composite metal shielding layer, the glass fiber tape isolating layer and the sheath layer are coaxially distributed.
Preferably, the insulating layer is an extruded heat-resistant 150 ℃ irradiation crosslinked polyethylene insulating layer.
Preferably, the semiconductive insulation shield layer is a heat-resistant 150 ℃ irradiation-crosslinked polyolefin semiconductive insulation shield layer.
Preferably, the weaving angle of the tinned copper wire weaving net in the composite metal shielding layer is 45 degrees +/-5 degrees, the weaving density is more than 85 percent, and the proportion of the copper wire is more than 90 percent.
Preferably, the thickness of the insulating layer and the thickness of the semiconductive insulating and shielding layer are both 0.3mm-0.8 mm.
Preferably, the overall thickness of the composite metal shielding layer is 0.5mm-0.8 mm.
Preferably, the sheath layer is an extruded heat-resistant 150 ℃ irradiation cross-linked polyolefin sheath layer with the thickness of 1-2 mm.
By above the technical scheme of the utility model, it is showing beneficial effect and lies in:
the utility model provides a be used for electrical apparatus internal storage battery to connect and use high-voltage shielded cable has excellent electrical property, and withstand voltage level reaches 3kV, can bear the impulse voltage who reaches 10kV for a short time simultaneously. The cable insulation and the insulation shielding can adopt a double-layer co-extrusion process, so that the two are tightly combined together, and the electrical insulation performance of the cable is ensured.
Considering that the local temperature in the electric appliance is too high, the whole cable has excellent heat resistance, the temperature resistance level reaches 150 ℃, the cable insulation adopts the irradiation crosslinking polyethylene insulation with the temperature of 150 ℃, the heat resistance level is greatly improved compared with the long-term working temperature of 90 ℃ or 70 ℃ of polyethylene of the conventional crosslinking polyethylene, the working requirement of the cable in local high-temperature occasions is ensured, and simultaneously, the heat resistance level of the insulation shielding layer and the sheath layer also reaches 150 ℃.
The cable shielding adopts a longitudinal aluminum-clad/plastic composite belt and tinned copper wire braided composite shielding structure, and adopts two combined shielding modes, so that the cable is ensured to have good shielding property, the electromagnetic field can be shielded inside the cable when the cable runs at high voltage, and the influence on external weak current signals is prevented.
It should be understood that all combinations of the foregoing concepts and additional concepts described in greater detail below can be considered as part of the inventive subject matter of the present disclosure unless such concepts are mutually inconsistent. In addition, all combinations of claimed subject matter are considered a part of the inventive subject matter of this disclosure.
The foregoing and other aspects, embodiments and features of the present teachings can be more fully understood from the following description taken in conjunction with the accompanying drawings. Additional aspects of the present invention, such as features and/or advantages of exemplary embodiments, will be apparent from the description which follows, or may be learned by practice of the specific embodiments in accordance with the teachings of the present invention.
Drawings
The drawings are not intended to be drawn to scale. In the drawings, each identical or nearly identical component that is illustrated in various figures may be represented by a like numeral. For purposes of clarity, not every component may be labeled in every drawing. Embodiments of various aspects of the present invention will now be described, by way of example, with reference to the accompanying drawings, in which:
fig. 1 is a schematic view of a high-voltage shielded cable for connecting a battery inside an electric apparatus according to an exemplary embodiment of the present invention.
Detailed Description
For a better understanding of the technical content of the present invention, specific embodiments are described below in conjunction with the accompanying drawings.
In this disclosure, aspects of the present invention are described with reference to the accompanying drawings, in which a number of illustrative embodiments are shown. Embodiments of the present disclosure are not necessarily intended to include all aspects of the invention. It should be appreciated that the various concepts and embodiments described above, as well as those described in greater detail below, may be implemented in any of numerous ways, as the disclosed concepts and embodiments are not limited to any implementation. Additionally, some aspects of the present disclosure may be used alone or in any suitable combination with other aspects of the present disclosure.
Combine fig. 1, according to the utility model discloses electrical equipment internal storage battery connects uses high-voltage shielded cable, power sinle silk conductor unit 1, insulating layer 2, semi-conductive insulating shield layer 3, composite metal shielding layer, glass fiber tape isolation layer 6 and restrictive coating 7 including coaxial setting.
The power wire core conductor unit 1 is preferably a tinned copper conductor, and can be formed into a circular cross section shape by stranding a plurality of strands of anaerobic copper wires through a stranding machine. In order to enhance the connection within the re-electrical equipment, the copper conductor may in particular be chosen to be a more finely woven copper mesh conductor.
And the insulating layer 2 is arranged on the outer side of the power wire core conductor unit and is an extruded heat-resistant 150 ℃ irradiation cross-linked polyethylene insulating layer.
And the semiconductive insulating shielding layer 3 is arranged on the outer layer of the insulating layer, and preferably, the semiconductive insulating shielding layer is a semiconductive insulating shielding layer of heat-resistant 150-DEG irradiation cross-linked polyolefin.
In the preparation process, the insulating layer 2 and the semi-conductive insulating shielding layer 3 can adopt a double-layer co-extrusion process, so that the insulating layer and the semi-conductive insulating shielding layer are tightly combined together, and the electric insulating property of the cable is ensured.
And the composite metal shielding layer is arranged outside the semi-conductive insulating shielding layer 3. Preferably, the composite metal shielding layer is a composite shielding layer formed by longitudinally wrapping an aluminum/plastic composite belt shielding layer 4 and a tinned copper wire braided shield 5, the aluminum/plastic composite belt shielding layer 4 comprises a steel/plastic composite belt embossing substrate, wherein the steel/plastic composite belt embossing substrate is longitudinally wrapped on the periphery of an integral structure formed by the power line core conductor unit 1, the insulating layer 2 and the semi-conductive insulating shielding layer 3, the plastic layer is melted and bonded together by heating, and then a tinned copper wire and aramid fiber mixed braided net is arranged on the outer layer of the steel/plastic composite belt to form the composite shielding layer.
Preferably, the weaving angle of the tinned copper wire woven mesh in the composite metal shielding layer is 45 degrees +/-5 degrees, the weaving density is more than 85 percent, and the proportion of the copper wire is more than 90 percent.
And the glass fiber tape isolation layer 6 is arranged outside the composite metal shielding layer. Preferably, a fiberglass tape refractory barrier is used.
And the sheath layer 6 is arranged outside the glass fiber tape isolation layer. Preferably, the sheath layer is an extruded heat-resistant 150 ℃ irradiation cross-linked polyolefin sheath layer with the thickness of 1-2 mm.
Wherein, the thickness of the insulating layer and the thickness of the semiconductive insulating shielding layer are both 0.3mm-0.8 mm.
Wherein the overall thickness of the composite metal shielding layer is 0.5mm-0.8 mm.
The utility model discloses a high voltage shielded cable structure is coaxial structure, and its main performance advantage lies in:
electrical properties: the cable has excellent electrical performance, the voltage withstanding grade reaches 3kV, and meanwhile, the cable can bear pulse voltage reaching 10kV in a short time. The cable insulation and the insulation shielding adopt a double-layer co-extrusion process, so that the two are tightly combined together, and the electrical insulation performance of the cable is ensured.
Heat resistance: considering that the local temperature in the electric appliance is too high, the whole cable has excellent heat resistance, the temperature resistance level reaches 150 ℃, the cable insulation adopts the irradiation crosslinking polyethylene insulation with the temperature of 150 ℃, the heat resistance level is greatly improved compared with the long-term working temperature of 90 ℃ of the conventional crosslinking polyethylene or 70 ℃ of the polyethylene, and the working requirement of the cable in local high-temperature occasions is ensured. Meanwhile, the heat resistance grade of the insulation shielding layer and the sheath layer also reaches 150 ℃.
Electromagnetic compatibility shielding: the cable shielding adopts a longitudinal aluminum-clad/plastic composite belt and tinned copper wire braided composite shielding structure, and adopts two combined shielding modes, so that the cable is ensured to have good shielding property, the electromagnetic field can be shielded inside the cable when the cable runs at high voltage, and the influence on external weak current signals is prevented.
Environmental protection performance: the cable is designed to be a halogen-free low-smoke flame-retardant environment-friendly cable, and halogen-containing materials are not adopted in all parts of the cable, so that the environment-friendly performance requirement of electrical equipment is met.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention. The present invention is intended to cover by those skilled in the art various modifications and adaptations of the invention without departing from the spirit and scope of the invention. Therefore, the protection scope of the present invention is subject to the claims.
Claims (7)
1. The utility model provides an inside battery of electrical equipment connects and uses high-voltage shielded cable which characterized in that includes:
the power wire core conductor unit is of a circular section;
the insulating layer is arranged on the outer layer of the power wire core conductor unit;
the semiconductive insulating shielding layer is arranged on the outer layer of the insulating layer;
a composite metal shield layer disposed exterior to the semiconductive insulation shield layer;
the glass fiber band isolation layer is arranged outside the composite metal shielding layer; and
the sheath layer is arranged outside the glass fiber tape isolation layer;
the composite metal shielding layer is a composite shielding layer formed by longitudinally wrapping an aluminum/plastic composite belt shielding layer and a tinned copper wire braided shielding layer, steel/plastic composite belt embossing is used as a substrate and longitudinally wraps the periphery of an integral structure formed by the power wire core conductor unit, the insulating layer and the semi-conductive insulating shielding layer, plastic layers are melted and bonded together through heating, and then a tinned copper wire and aramid fiber mixed braided net is arranged on the outer layer of the steel/plastic composite belt to form the composite shielding layer;
the power line core conductor unit, the insulating layer, the semi-conductive insulating shielding layer, the composite metal shielding layer, the glass fiber tape isolating layer and the sheath layer are coaxially distributed.
2. The high-voltage shielded cable for connecting the internal storage battery of the electrical equipment as claimed in claim 1, wherein the insulating layer is an extruded heat-resistant 150 ℃ radiation-crosslinked polyethylene insulating layer.
3. The high-voltage shielded cable for connecting the storage battery inside the electric equipment as claimed in claim 1, wherein the semiconductive insulating and shielding layer is a semiconductive insulating and shielding layer of heat-resistant 150 ℃ radiation-crosslinked polyolefin.
4. The high-voltage shielded cable for connecting the internal storage battery of the electrical equipment according to claim 1, wherein the braiding angle of the tinned copper wire braided net in the composite metal shielding layer is 45 ° ± 5 °, the braiding density is greater than 85%, and the ratio of the copper wire is more than 90%.
5. The high-voltage shielded cable for connecting the internal storage battery of the electrical equipment as claimed in claim 1, wherein the insulating layer and the semiconductive insulating and shielding layer have a thickness of 0.3mm to 0.8 mm.
6. The high-voltage shielded cable for connecting the internal storage battery of the electrical equipment as claimed in claim 1, wherein the overall thickness of the composite metal shielding layer is 0.5mm to 0.8 mm.
7. The high-voltage shielded cable for connecting the internal storage battery of the electrical equipment as claimed in claim 1, wherein the sheath layer is an extruded and heat-resistant 150 ℃ radiation-crosslinked polyolefin sheath layer with a thickness of 1-2 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022967398.XU CN213752015U (en) | 2020-12-10 | 2020-12-10 | High-voltage shielding cable for connecting storage battery in electrical equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022967398.XU CN213752015U (en) | 2020-12-10 | 2020-12-10 | High-voltage shielding cable for connecting storage battery in electrical equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213752015U true CN213752015U (en) | 2021-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022967398.XU Active CN213752015U (en) | 2020-12-10 | 2020-12-10 | High-voltage shielding cable for connecting storage battery in electrical equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213752015U (en) |
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2020
- 2020-12-10 CN CN202022967398.XU patent/CN213752015U/en active Active
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