Aluminum alloy cable for power transmission

Abstract

The invention discloses an aluminum alloy cable for power transmission, wherein the outer end of a wound wire core is wrapped with an oil-immersed wrapping sleeve, the outer end of the oil-immersed wrapping sleeve is sleeved with an elastic insulating sleeve, a plurality of hollow elastic blocks are equidistantly bonded to the outer end of the elastic insulating sleeve, the outer end of the hollow elastic block is fixedly connected with a hard arc plate, a heat exchange hollow sleeve is symmetrically fixed to the outer end of the hard arc plate, a porous water absorption strip is embedded and installed on the inner side of the heat exchange hollow sleeve, and a plurality of suction fixing holes are equidistantly provided on the side end and the bottom end of the heat exchange hollow sleeve, which effectively solves the problem in the prior art that the inside of the cable is tightly squeezed and cannot be elastically expanded and contracted, resulting in squeezing and deformation of the cable inside, and at the same time avoids the situation that single-point high temperature causes thermal melt power failure and thermal melt fire in the cable, and at the same time supports and protects the outside, reduces the situation that the cable is damaged by external hard objects, and effectively improves the operation stability and service life of the cable.

Description

Technical Field

[0001] The invention relates to the technical field of cables, and in particular to an aluminum alloy cable for power transmission. Background Art

[0002] Aluminum alloy cable is a cable that uses aluminum alloy as a conductor. Compared with traditional copper conductor cables, aluminum alloy cables are lighter and cheaper, so they are widely used in some specific applications. They are lightweight, low-cost, have excellent conductivity and good oxidation resistance.

[0003] However, during the use of aluminum alloy cables, due to the large resistance of the cable itself, a large amount of heat will be generated under high-load operation, and the aluminum alloy will expand significantly when heated. The inside of the cable is squeezed tightly and cannot be elastically expanded, resulting in internal extrusion and deformation of the cable. At the same time, the heat stays for a long time, which can easily lead to thermal melt power outages and hot melt fires inside. In addition, the core of the aluminum alloy cable is soft and easily damaged by external extrusion, which greatly affects the normal operation and service life of the cable. Summary of the invention

[0004] The present invention provides an aluminum alloy cable for power transmission, which can effectively solve the problem raised in the above background technology that during the use of the existing aluminum alloy cable, due to the large resistance of the cable itself, a large amount of heat will be generated under high-load operation, and the aluminum alloy will undergo a large degree of thermal expansion when heated. The inside of the cable is tightly squeezed and cannot be elastically expanded, resulting in extrusion and deformation of the cable. At the same time, the heat stays for a long time, which can easily lead to thermal melt power outages and thermal melt fires inside the cable. In addition, the wire core of the aluminum alloy cable is relatively soft and can be easily damaged by external squeezing, which greatly affects the normal operation and service life of the cable.

[0005] To achieve the above object, the present invention provides the following technical solution: an aluminum alloy cable for power transmission, comprising a winding core, wherein a telescopic multi-protection component is provided at the outer end of the winding core;

[0006] The telescopic multi-protection assembly includes an oil-immersed wrapping sleeve;

[0007] The outer end of the winding core is wrapped with an oil-immersed wrapping sleeve, the outer end of the oil-immersed wrapping sleeve is sleeved with an elastic insulating sleeve, the outer end of the elastic insulating sleeve is equidistantly bonded with a plurality of hollow elastic blocks, and the outer end of the hollow elastic block is fixedly connected with a hard arc plate;

[0008] A heat exchange hollow sleeve is symmetrically fixed on the outer end of the hard arc plate, a porous water absorption strip is embedded and installed on the inner side of the heat exchange hollow sleeve, a plurality of suction fixing holes are equidistantly opened on the side end and the bottom end of the heat exchange hollow sleeve, and a plurality of replacement fixing blocks are sleeved on the outer ends of the heat exchange hollow sleeves;

[0009] A plurality of heat exchange storage cavities are equidistantly provided on the inner side of the replacement fixing block, a plurality of insertion exchange strips are equidistantly embedded and installed at the positions of the heat exchange hollow sleeves on the inner side of the replacement fixing block, a heat exchange insulating sleeve is sleeved on the outer end of the replacement fixing block, and a plurality of heat conduction exchange strips are equidistantly clamped at the positions of the heat exchange insulating sleeves on the outer section of the replacement fixing block;

[0010] The outer end of the heat exchange insulation sleeve is equidistantly connected with a plurality of I-shaped exchange strips, a double convex multi-layer sleeve is fixed between two I-shaped exchange strips, a fixed mesh plate is embedded and installed at the inner end of the double convex multi-layer sleeve corresponding to the position of the heat exchange strip and the I-shaped exchange strip, and the outer end of the I-shaped exchange strip is sleeved with an insulating protective sleeve;

[0011] The side ends of the multiple insulating protective sleeves are sleeved with multi-recessed clamping strips, the inner side of the multiple-recessed clamping strips are provided with a plurality of telescopic fixing cavities at equal distances, the side ends of the multiple-recessed clamping strips are provided with exhaust fixing holes at positions corresponding to the telescopic fixing cavities, the side ends of the multiple-recessed clamping strips are provided with a plurality of embedded plug-in holes at equal distances, the inner side of the embedded plug-in holes is embedded and clamped with an elastic support column, and the outer ends of the multiple insulating protective sleeves and the multiple-recessed clamping strips are sleeved with triangular support sleeves.

[0012] According to the above technical solution, a number of arc-shaped support strips are equidistantly fixed on the outer end of the triangular support sleeve, a number of elastic concave-convex cavities are equidistantly opened on the inner side of the arc-shaped support strip, a number of support buffer strips are equidistantly fixed on the outer end of the elastic concave-convex cavities, a number of support buffer strips are equidistantly fixed on the side ends of the multiple support buffer strips, a plurality of the support buffer strips are bonded with a fitting support plate at the side ends, a number of hollow fixing cavities are equidistantly opened on the inner side of the fitting support plate, a stab-proof telescopic strip is fixed on the outer end of the hollow fixing cavity, a number of engaging fixing grooves are equidistantly opened on the side end of the stab-proof telescopic strip, and an insulating support sleeve is fixed to the outer ends of the multiple stab-proof telescopic strips.

[0013] According to the above technical solution, the side end of the inner hollow elastic block is slidably fitted with the side end of the heat exchange hollow sleeve, the inner end of the heat exchange hollow sleeve is fitted with the outer end of the elastic insulating sleeve, and the suction fixing hole is sleeve-connected with the porous water-absorbing strip.

[0014] According to the above technical solution, the inner end of the inserted exchange strip fits with the outer end of the heat exchange hollow sleeve, and the longitudinal sections of the heat exchange hollow sleeve and the porous water-absorbing strip are both T-shaped.

[0015] According to the above technical solution, the outer end of the heat exchange strip is fitted with the inner end of the heat exchange insulation sleeve, and the side ends of the fixed mesh plate are respectively fitted and connected with the heat exchange strip and the I-shaped exchange strip.

[0016] According to the above technical solution, the side ends of the fitting support plate are connected with the multi-concave positioning strips, the insulating protective sleeve and the side ends of the triangular support sleeve, and the longitudinal sections of the inserted exchange strips, the thermal conductivity exchange strips and the support buffer strips are all arc-shaped.

[0017] According to the above technical solution, combined injection components are provided at both ends of the insulating support sleeve;

[0018] The combined injection assembly includes an adhesive support ring;

[0019] Adhesive support rings are sleeved on both sides of the outer end of the insulating support sleeve, an internal threaded barrel is bonded to the outer end of the adhesive support ring, the outer end of the internal threaded barrel is connected to an external threaded barrel through a thread, one end of the external threaded barrel is rotatably connected to a fitting sealing plate, a fixed threaded ring is welded to the end of the fitting sealing plate away from the external threaded barrel, a double threaded pipe is connected between the two fixed threaded rings through a thread, a plurality of connection processing holes are equidistantly opened at one end of the fitting sealing plate, an oil absorption fixing sleeve is fixed to the inner side of the connection processing hole, and an adsorption sponge pad is fixed to the outer end of the oil absorption fixing sleeve;

[0020] An injection fixing cylinder is fixed in the middle of the outer end of the double threaded tube, an injection support tube is connected through the top of the injection fixing cylinder, a manual valve is embedded in one end of the injection support tube, a fitting sealing ring is fixed on the inner side of the injection fixing cylinder, a rising spring is fixed on the top of the fitting sealing ring, an I-shaped sealing block is welded on the top of the rising spring, a supporting anti-rotation block is bonded to the bottom of the outer end of the double threaded tube and the insulating support sleeve, and a sealing protective pad is bonded to the inner threaded cylinder, the fitting sealing plate and the side end of the double threaded tube.

[0021] According to the above technical solution, one end of the fitting sealing plate is sleeved and connected with one end of the insulating support sleeve, the inner end of the external threaded tube is rotationally connected with the outer end of the insulating support sleeve, and the two ends of the double threaded tube are respectively rotationally sleeved with one end of the two fitting sealing plates.

[0022] According to the above technical solution, the cross section of the oil suction fixed sleeve is cross-shaped, and the I-shaped sealing block is slidably placed inside the injection fixed cylinder.

[0023] According to the above technical solution, the I-shaped sealing block is slidably fitted with the fitting sealing ring, and the two sealing protection pads are clamped and connected to each other.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. A telescopic multi-protection component is provided. The heat expansion of the wire core itself pushes the oil-immersed wrapping sleeve and the elastic insulating sleeve to move outward, and the heat conducted from the outside is used to heat the air in the inner hollow elastic block. The hard arc plate and the heat exchange hollow sleeve are used to limit the inner hollow elastic block. The inner hollow elastic block is used to push the oil-immersed wrapping sleeve and the elastic insulating sleeve to move inward. By squeezing the inside and outside at the same time, the oil-immersed wrapping sleeve and the elastic insulating sleeve are fully fitted to the wire core. By using the external elastic expansion, the cable can adjust the size of the internal space according to the temperature when in use, avoiding the occurrence of wire core extrusion and deformation due to pressure on the wire core, and the cooling component and the insulating component are completely fitted to the side end of the wire core by the extrusion effect, so as to realize wire core protection and heat conduction cooling, and ensure the stability of the wire core operation;

[0026] The internal heat is gradually conducted outwards through the heat exchange hollow sleeve, the inserted exchange strip, the replacement fixed block and the cooling oil in the heat exchange cavity, and then the internal heat is conducted outwards by the cooling oil in the heat exchange cavity, the heat exchange insulation sleeve, the heat exchange strip, the I-shaped exchange strip, the double convex multi-layer sleeve and the insulating protective sleeve. The heat is gradually conducted outwards through multiple layers, and the internal and external heat is balanced during heat conduction, so as to reduce the single point temperature inside and outside the cable and improve the overall heat exchange speed. The protection is increased layer by layer with the multi-concave positioning strip, the triangular support sleeve, the arc support strip, the support buffer strip, the fitting support plate, the puncture-proof telescopic strip and the insulating support sleeve, and the air thermal expansion of the elastic concave-convex cavity and the hollow fixed cavity is used to squeeze the protective components, so that multiple groups of components are squeezed against each other, so as to achieve heat conduction and support protection layer by layer, and ensure the stability of cable operation;

[0027] The interior is squeezed by internal and external thermal expansion, and the interior is elastically supported, and multiple groups of heat-conducting components and isolation components cooperate with each other, and elastic support and elastic extrusion limit are used to achieve cable extrusion protection and support fixation, which effectively solves the problem of tight internal extrusion of the cable in the prior art, and inability to elastically expand and contract, resulting in internal extrusion and deformation of the cable. At the same time, it avoids the situation of thermal melt power failure and thermal melt fire caused by single-point high temperature. At the same time, it supports and protects the outside to reduce the possibility of cable damage by external hard objects, effectively improving the operating stability and service life of the cable.

[0028] 2. A combined injection assembly is provided, the internal threaded barrel is fixed by an adhesive support ring, the internal threaded barrel and the external threaded barrel are clamped by threads, the fitting sealing plate is sleeved to the side end of the insulating support sleeve, the oil absorption fixed sleeve is embedded into the inner side of the connection processing hole, so that the side end of the oil absorption fixed sleeve is sleeved and aligned with the side end of the oil immersion wrapping sleeve, the two sets of fitting sealing plates are combined and clamped by a fixed threaded ring and a double threaded tube, and then two sealing protective pads are used to seal and limit the fitting sealing plate, the double threaded tube and the side end of the external threaded barrel, and multiple sets of clamping parts are used to clamp the two cables together, and the combined position is sealed and clamped, so that when the two cables are combined, the combined position can be blocked and clamped to avoid the cable core being exposed to the air and rusting during use;

[0029] Oil is injected into the injection fixed cylinder through the oil injection gun and the injection support tube, and the injection fixed cylinder and the double threaded tube are sealed with the I-shaped sealing block, the fitting sealing ring and the rising spring to achieve exhaust and oil injection isolation, and the injection support tube is sealed with the manual valve, and then the adsorption sponge pad and the oil absorption fixed sleeve are used to seal the oil-immersed wrapping sleeve and the wire core, so that the oil in the oil-immersed wrapping sleeve is kept moist to achieve insulation and isolation of the wound wire core, and the protective fixation, isolation sealing and oil injection sealing cooperate with each other. First, the cable section is sealed, and then the external isolation protection is used to prevent air from entering, and the oil seal treatment is cooperated to achieve steady operation of cable interface sealing and cable cooling treatment, thereby ensuring stable interface operation.

[0030] In summary, through the cooperation of telescopic multi-protection components and combined injection components, the use of internal and external protection combination and continuous oil immersion treatment, and external oiling, the continuous filling of cable surface oil is achieved to ensure the effect of external protection, which is convenient for staff to carry out maintenance and protection. Through the cooperation of multiple components, the working stability and service life of the cable are effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0032] In the attached picture:

[0033] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0034] Figure 2 It is a schematic diagram of the structure of the telescopic multi-defense component of the present invention;

[0035] Figure 3 It is a schematic diagram of the installation structure of the stab-proof telescopic strip of the present invention;

[0036] Figure 4 It is a schematic diagram of the installation structure of the triangular support sleeve of the present invention;

[0037] Figure 5 It is a schematic diagram of the installation structure of the exhaust fixing hole of the present invention;

[0038] Figure 6 It is a schematic diagram of the installation structure of the replacement fixing block of the present invention;

[0039] Figure 7 It is a schematic diagram of the installation structure of the insulating protective sleeve of the present invention;

[0040] Figure 8 is a schematic structural diagram of a combined injection assembly of the present invention;

[0041] Fig. 9 It is a schematic diagram of the installation structure of the internal threaded barrel of the present invention;

[0042] Fig.10 It is a schematic diagram of the installation structure of the fitting sealing ring of the present invention;

[0043] Numbers in the figure: 1, winding wire core;

[0044] 2. Telescopic multi-protection components; 201. Oil-immersed wrapping sleeve; 202. Elastic insulating sleeve; 203. Inner hollow elastic block; 204. Hard arc plate; 205. Heat exchange hollow sleeve; 206. Porous water absorption strip; 207. Suction fixing hole; 208. Replacement fixing block; 209. Storage heat exchange cavity; 210. Insert exchange strip; 211. Heat exchange insulation sleeve; 212. Thermal conductivity exchange strip; 213. Industrial exchange strip; 214. Double convex multi-layer sleeve; 215. Solid Fixed mesh plate; 216, insulating protective sleeve; 217, multi-concave card strip; 218, telescopic fixed cavity; 219, exhaust fixing hole; 220, embedded plug-in hole; 221, elastic support column; 222, triangular support sleeve; 223, arc support strip; 224, elastic concave-convex cavity; 225, support buffer strip; 226, fitting support plate; 227, hollow fixed cavity; 228, puncture-proof telescopic strip; 229, card fixing groove; 230, insulating support sleeve;

[0045] 3. Combined injection assembly; 301. Adhesive support ring; 302. Internal threaded barrel; 303. External threaded barrel; 304. Fitted sealing plate; 305. Fixed threaded ring; 306. Double threaded pipe; 307. Connection processing hole; 308. Oil suction fixed sleeve; 309. Adsorption sponge pad; 310. Injection fixed barrel; 311. Injection support pipe; 312. Manual valve; 313. Fitted sealing ring; 314. Rising spring; 315. I-shaped sealing block; 316. Support anti-rotation block; 317. Sealing protection pad. DETAILED DESCRIPTION

[0046] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0047] Example: Figure 1-10 As shown, the present invention provides a technical solution, an aluminum alloy cable for power transmission, comprising a winding core 1, and a telescopic multi-protection component 2 is arranged at the outer end of the winding core 1.

[0048] The telescopic multi-protection component 2 includes an oil-immersed wrapping sleeve 201, an elastic insulating sleeve 202, an inner hollow elastic block 203, a hard arc plate 204, a heat exchange hollow sleeve 205, a porous water absorption strip 206, an intake fixing hole 207, a replacement fixing block 208, a storage heat exchange cavity 209, an inserted exchange strip 210, a heat exchange insulating sleeve 211, a thermal conductivity exchange strip 212, an I-type exchange strip 213, a double convex multi-layer sleeve 214, a fixed mesh plate 215, an insulating protection sleeve 216, a multi-concave positioning strip 217, a telescopic fixing cavity 218, an exhaust fixing hole 219, an embedded plug-in hole 220, an elastic support column 221, a triangular support sleeve 222, an arc support strip 223, an elastic concave-convex cavity 224, a support buffer strip 225, a fitting support plate 226, a hollow fixed cavity 227, an anti-puncture telescopic strip 228, a snap-fit ​​fixing groove 229 and an insulating support sleeve 230.

[0049] The outer end of the winding core 1 is wrapped with an oil-immersed wrapping sleeve 201, and the outer end of the oil-immersed wrapping sleeve 201 is sleeved with an elastic insulating sleeve 202. The outer end of the elastic insulating sleeve 202 is equidistantly bonded with a plurality of inner hollow elastic blocks 203, and the outer end of the inner hollow elastic block 203 is fixedly connected with a hard arc plate 204, and the outer end of the hard arc plate 204 is symmetrically fixed with a heat exchange hollow sleeve 205. The side end of the inner hollow elastic block 203 is slidably fitted with the side end of the heat exchange hollow sleeve 205, and the inner end of the heat exchange hollow sleeve 205 is fitted with the outer end of the elastic insulating sleeve 202 to achieve heat exchange fitting and ensure overall heat exchange. In order to ensure the stability of the heat exchange and internal sealing support, and at the same time facilitate the protection operation of the cable, a porous water-absorbing strip 206 is embedded and installed on the inner side of the heat exchange hollow sleeve 205. The longitudinal sections of the heat exchange hollow sleeve 205 and the porous water-absorbing strip 206 are both T-shaped, so that they can be operated steadily during the card limit and internal blocking protection. A number of suction fixing holes 207 are equidistantly opened on the side and bottom ends of the heat exchange hollow sleeve 205. The suction fixing holes 207 are sleeved and connected with the porous water-absorbing strip 206 to ensure the stable operation of air suction and drying. The outer ends of multiple heat exchange hollow sleeves 205 are sleeved with replacement fixing blocks. 208, a plurality of storage heat exchange chambers 209 are equidistantly provided on the inner side of the replacement fixing block 208, a plurality of insertion exchange bars 210 are equidistantly embedded and installed at the position of the heat exchange hollow sleeve 205 on the inner side of the replacement fixing block 208, the inner side end of the insertion exchange bar 210 is fitted with the outer side end of the heat exchange hollow sleeve 205 to achieve steady heat exchange processing, a heat exchange insulating sleeve 211 is sleeved on the outer side end of the replacement fixing block 208, a plurality of heat conduction exchange bars 212 are equidistantly clamped at the position of the heat exchange insulating sleeve 211 on the outer side section of the replacement fixing block 208, and the outer side end of the heat exchange insulating sleeve 211 is equidistantly clamped. Several I-type exchange bars 213 are clamped together, the outer end of the thermal conductivity exchange bar 212 is fitted with the inner end of the heat exchange insulating sleeve 211, and the side ends of the fixed mesh plate 215 are respectively fitted and connected with the thermal conductivity exchange bar 212 and the I-type exchange bar 213 to ensure steady linkage during heat exchange and drying. A double convex multi-layer sleeve 214 is fixed between the two I-type exchange bars 213, and a fixed mesh plate 215 is embedded and installed at the inner end of the double convex multi-layer sleeve 214 corresponding to the position of the thermal conductivity exchange bar 212 and the I-type exchange bar 213, and the outer end of the I-type exchange bar 213 is sleeved with an insulating protective sleeve 216.

[0050] The side ends of the multiple insulating protective sleeves 216 are sleeved with multi-concave positioning strips 217, and the inner side of the multiple concave positioning strips 217 is equidistantly provided with a plurality of telescopic fixing cavities 218, and the side ends of the multiple concave positioning strips 217 are provided with exhaust fixing holes 219 at positions corresponding to the telescopic fixing cavities 218, and the side ends of the multiple concave positioning strips 217 are equidistantly provided with a plurality of embedded plug-in holes 220, and the inner side of the embedded plug-in holes 220 is embedded and clamped with an elastic support column 221, and the outer ends of the multiple insulating protective sleeves 216 and the multiple concave positioning strips 217 are sleeved with a triangular support sleeve 222, and the outer end of the triangular support sleeve 222 is equidistantly fixed with a plurality of arcuate support strips 223, and the inner side of the arcuate support strips 223 is equidistantly provided with a plurality of elastic concave-convex cavities 224, and the outer end of the elastic concave-convex cavities 224 is equidistantly fixed with a plurality of support buffer strips 225, and the insertion exchange The longitudinal sections of the strips 210, the heat exchange strips 212 and the support buffer strips 225 are all arc-shaped, so that they can be operated steadily during fitting support and heat exchange, and realize elastic support and elastic buffering. The side ends of the multiple support buffer strips 225 are bonded with fitting support plates 226, and the side ends of the fitting support plates 226 are fitted and connected with the multi-concave positioning strips 217, the insulating protective sleeves 216 and the side ends of the triangular support sleeves 222 to realize positioning support and fitting support, and ensure the stability of sealing fixation and sealing fitting. A number of hollow fixing cavities 227 are equidistantly opened on the inner side of the fitting support plate 226, and a stab-proof telescopic strip 228 is fixed to the outer end of the hollow fixing cavity 227. A number of fitting fixing grooves 229 are equidistantly opened on the side ends of the stab-proof telescopic strips 228, and an insulating support sleeve 230 is fixed to the outer ends of the several stab-proof telescopic strips 228.

[0051] Combined injection components 3 are provided at both ends of the insulating support sleeve 230 .

[0052] The combined injection assembly 3 includes an adhesive support ring 301, an internal threaded barrel 302, an external threaded barrel 303, a fitting sealing plate 304, a fixed threaded ring 305, a double threaded tube 306, a connection processing hole 307, an oil suction fixed sleeve 308, an adsorption sponge pad 309, an injection fixed barrel 310, an injection support tube 311, a manual valve 312, a fitting sealing ring 313, a rising spring 314, an I-shaped sealing block 315, a support anti-rotation block 316 and a sealing protection pad 317.

[0053] The outer ends of the insulating support sleeve 230 are sleeved with adhesive support rings 301 on both sides, and the outer ends of the adhesive support rings 301 are bonded with internal threaded tubes 302, and the outer ends of the internal threaded tubes 302 are connected to the external threaded tubes 303 through threads, and one end of the external threaded tubes 303 is rotatably connected to a fitting sealing plate 304, and one end of the fitting sealing plate 304 is sleeved and connected with one end of the insulating support sleeve 230, and the inner end of the external threaded tube 303 is rotatably connected with the outer end of the insulating support sleeve 230, so as to achieve sealing and isolation of the cables and components inside the insulating support sleeve 230, reduce internal air intake and corrosion damage to the wire core, and the fitting sealing plate 304 is away from the outer threaded tube 303. A fixed threaded ring 305 is welded at the end, and a double threaded tube 306 is threadedly connected between the two fixed threaded rings 305. The two ends of the double threaded tube 306 are respectively rotated and fitted with one end of the two fitting sealing plates 304 to achieve fitting sealing, ensure the overall isolation and limit, and achieve cable combination sealing. A number of connection processing holes 307 are equidistantly opened at one end of the fitting sealing plate 304, and an oil absorption fixing sleeve 308 is fixed to the inner side of the connection processing hole 307. The cross section of the oil absorption fixing sleeve 308 is cross-shaped, which realizes closed sealing, blocks the cable fixed sleeve, and achieves close fitting of the cable. An adsorption sponge pad 309 is fixed to the outer end of the oil absorption fixing sleeve 308.

[0054] An injection fixed cylinder 310 is fixed to the middle part of the outer end of the double threaded tube 306, and an injection support tube 311 is connected to the top of the injection fixed cylinder 310, and a manual valve 312 is embedded in one end of the injection support tube 311, and a fitting sealing ring 313 is fixed to the inner side of the injection fixed cylinder 310, and a lifting spring 314 is fixed to the top of the fitting sealing ring 313, and an I-shaped sealing block 315 is welded to the top of the lifting spring 314, and the I-shaped sealing block 315 is slidably placed on the inner side of the injection fixed cylinder 310, and the I-shaped sealing block 315 is slidably fitted with the fitting sealing ring 313 to achieve mobile positioning and support displacement, control internal sealing and oil immersion, and a supporting anti-rotation block 316 is bonded to the bottom of the outer end of the double threaded tube 306 and the insulating support sleeve 230, and a sealing protection pad 317 is bonded to the side end of the internal threaded cylinder 302, the fitting sealing plate 304 and the double threaded tube 306, and the two sealing protection pads 317 are connected to each other by clamping to achieve side end closure to ensure the stability of the overall sealing treatment.

[0055] The working principle and use process of the present invention are as follows: when two cables are combined, the staff will respectively bond the two sets of adhesive support rings 301 to the side ends of the two insulating support sleeves 230, and use the adhesive support rings 301 to fix the internal threaded tube 302 to the side ends of the insulating support sleeves 230. After the fixing is completed, the internal threaded tube 302 and the external threaded tube 303 are clamped together by a threaded combination, and after the clamping is completed, the fitting sealing plate 304 is sleeved on the side ends of the insulating support sleeves 230, and the side ends of the insulating support sleeves 230 are clamped and sealed by the fitting sealing plate 304. After the fitting sealing plate 304 is clamped, the oil absorption fixing sleeve 308 is embedded into the inner side of the connection processing hole 307, and the oil absorption fixing sleeve 308 is adhered to the oil immersion bag wrapped around the outside of the winding wire core 1. The side end of the wrapping sleeve 201 is made to fit and align with the side end of the oil immersion wrapping sleeve 201 and the side end of the oil absorption fixed sleeve 308. After the alignment is completed, the double threaded tube 306 is sleeved onto the side end of the stripped winding wire core 1, and the winding wire core 1 is connected and fixed by twisting. After the twisting is completed, the oxide on the surface of the winding wire core 1 is polished and removed by a polishing component. After the polishing is completed, the fixed threaded ring 305 and the double threaded tube 306 are used for thread fixation. The two sets of fitting sealing plates 304 are combined and clamped by the fixed threaded ring 305 and the double threaded tube 306. After the clamping is completed, the two sealing protection pads 317 are fitted to the fitting sealing plate 304, the double threaded tube 306 and the external threaded tube 303 for sealing. After the sealing is completed, the staff opens the Manual valve 312, insert the oil gun into the inner side of the injection support tube 311, at this time, oil is injected into the injection fixed cylinder 310 through the oil gun and the injection support tube 311, and the oil pressure pushes the type sealing block 315 to move down along the injection fixed cylinder 310 and the fitting sealing ring 313. At this time, the rising spring 314 is compressed, and the isolation cooling oil enters the double threaded tube 306 and the inner side of the fixed threaded ring 305 along the injection fixed cylinder 310, and the winding wire core 1 is sealed and isolated by the isolation cooling oil. After the injection is completed, the type sealing block 315 is driven by the rising spring 314 to rise along the injection fixed cylinder 310, and the type sealing block 315 is clamped to the side end of the fitting sealing ring 313 to achieve sealing of the injection fixed cylinder 310, and then close it. The manual valve 312 seals the injection fixing cylinder 310 and the injection support tube 311, so that the winding core 1 can be effectively isolated and sealed during connection, and the isolation cooling oil is injected into the inner side of the adsorption sponge pad 309, and the oil absorption fixing sleeve 308 and the oil immersion wrapping sleeve 201 are injected with oil through the adsorption sponge pad 309. The continuous oil injection treatment is used to keep the oil in the oil immersion wrapping sleeve 201 moist, thereby achieving insulation and isolation treatment of the winding core 1, and effectively improving the working stability of the winding core 1. After the cable assembly is completed, the support anti-rotation block 316 is fixed to the bottom end of the double threaded tube 306 and the bottom end of the insulating support sleeve 230 to fix the cable and the connection point, avoid cable rotation, and improve the stability of cable storage.

[0056] When the cable is in use, power is supplied by the winding core 1. When the winding core 1 supplies power, the winding core 1 itself will generate heat due to the resistance of the core itself. The winding core 1 is made of aluminum alloy, which will expand greatly when heated, and will generate more heat under high load. At this time, the winding core 1 will expand outward. At the same time, the heat will be conducted along the oil-immersed wrapping sleeve 201 and the elastic insulating sleeve 202 to the position of the inner hollow elastic block 203. When the inner hollow elastic block 203 is heated, the air inside will be affected by the thermal expansion and push the inner hollow elastic block 203 outward. At the same time, under the restriction of the hard arc plate 204 and the heat exchange hollow sleeve 205, the inner hollow elastic block 203 can only expand in a single direction. The wound wire core 1 pushes the oil-immersed sheath 201 and the elastic insulating sheath 202 to move outward from the inside to the outside, and the inner hollow elastic block 203 pushes the oil-immersed sheath 201 and the elastic insulating sheath 202 to move inward from the outside to the inside. The oil-immersed sheath 201 and the elastic insulating sheath 202 are squeezed by both the inside and the outside, so that the oil-immersed sheath 201 and the elastic insulating sheath 202 are squeezed and adhered to the side ends of the wound wire core 1 along the surface of the wound wire core 1, thereby achieving full winding of the wound wire core 1 by the oil-immersed sheath 201, and utilizing the insulating cooling oil of the oil-immersed sheath 201 to seal and isolate the wound wire core 1, achieving internal heat dissipation while the internal space is continuously squeezed, thereby avoiding the storage of a large amount of air inside, which causes the wound wire core 1 to come into contact with oxygen in the air and become oxidized, thereby achieving protective isolation of the wound wire core 1.

[0057] At the same time, the heat generated by the winding core 1 is introduced into the position of the heat exchange hollow sleeve 205 along the oil-immersed wrapping sleeve 201 and the elastic insulating sleeve 202, and the heat is conducted outward along the heat exchange hollow sleeve 205. At this time, the residual air at the position of the heat exchange hollow sleeve 205 is heated due to the high temperature, and the hot air enters the side end of the porous water-absorbing strip 206 at the position of the heat exchange hollow sleeve 205 along the suction fixing hole 207, and the porous water-absorbing strip 206 is used to absorb water in the air. At the same time, the porous water-absorbing strip 206 is embedded in the The silica gel desiccant in the strip 206 absorbs the absorbed water again to achieve the absorption and drying of the moisture and ensure the dryness of the internal air. The multiple sets of heat exchange hollow sleeves 205 are used to fit each other for heat exchange and cooperate with the suction fixing holes 207 to penetrate each other. The heat exchange hollow sleeve 205 and the cooling oil inside the replacement fixing block 208 are cooled by inserting the exchange strip 210. The heat enters the storage heat exchange cavity 20 at the position of the replacement fixing block 208. 9, the cooling oil is located at the position of the heat exchanger 212, and then the heat is conducted outwardly through the heat exchange strip 212, and the heat exchange insulation sleeve 211 and the I-type exchange strip 213 are cooperated to conduct heat outward gradually. At this time, the heat exchange insulation sleeve 211 is used to transfer the heat of multiple inserted exchange strips 210 to each other, so as to achieve internal heat balance treatment, and the storage heat exchange cavity 209 is used to perform heat exchange treatment on the internal inserted exchange strip 210, and then the double convex multi-layer sleeve 214 and the fixed mesh plate 215 absorb the external air, and the air is dried by the silica gel desiccant filled inside to achieve internal isolation, middle and external drying treatment, and the replacement fixed block 208, the cooling oil in the storage heat exchange cavity 209, the heat exchange insulation sleeve 211 and the double convex multi-layer sleeve 214 cooperate with the insulating protective sleeve 216, so that the internal multiple groups of heat exchange components can be connected and transferred to each other by the ring structure, balance the internal heat, improve the internal heat exchange speed and internal heat balance, and avoid the situation that the aluminum alloy cable is short-circuited or hot-melt fire caused by excessive heating at a single point.

[0058] The internal heat is then gradually conducted outward through the multi-recessed card strip 217, the triangular support sleeve 222, the fitting support plate 226, the puncture-proof telescopic strip 228 and the insulating support sleeve 230, thereby reducing the self-heat of the cable. During the use of the cable, the telescopic fixing cavity 218 and the exhaust fixing hole 219 located at the multi-recessed card strip 217 will squeeze the internal air and the telescopic fixing cavity 218 during the bending process, so that elastic expansion and contraction can be utilized during the bending process, thereby reducing the probability of the middle part of the cable being crushed or damaged by compression. The embedded plug-in hole 220 and the elastic support column 221 are used to support and position the whole, thereby reducing the situation of unidirectional collapse caused by insufficient internal support during bending. Occurs, cooperate with the support buffer strip 225 for support positioning and elastic buffering to achieve full support and engagement, cooperate with the fitting support plate 226 and the hollow fixed cavity 227 to provide secondary elastic support to the outside, and use the exported heat to heat the air, and use the thermal expansion of the air in the elastic concave-convex cavity 224 and the hollow fixed cavity 227 to squeeze and fit the triangular support sleeve 222, the multi-concave positioning strip 217, the arc-shaped support strip 223, the support buffer strip 225 and the fitting support plate 226 to achieve external pressurized squeezing, cooperate with the anti-puncture telescopic strip 228 and the insulating support sleeve 230 to perform external protection treatment, so as to achieve steady operation of the cable and improve the stability and service life of the cable.

[0059] Finally, it should be noted that the above description is only a preferred example of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An aluminum alloy cable for power transmission, comprising a wound core (1), characterized in that: The outer end of the winding wire core (1) is provided with a telescopic multi-protection component (2); The telescopic multi-protection component (2) comprises an oil-immersed wrapping sleeve (201); The outer end of the winding wire core (1) is wrapped with an oil-immersed wrapping sleeve (201), the outer end of the oil-immersed wrapping sleeve (201) is sleeved with an elastic insulating sleeve (202), the outer end of the elastic insulating sleeve (202) is bonded with a plurality of hollow elastic blocks (203) at equal intervals, and the outer end of the hollow elastic block (203) is fixedly connected with a hard arc-shaped plate (204); A heat exchange hollow sleeve (205) is symmetrically fixed to the outer end of the hard arc-shaped plate (204); a porous water absorption strip (206) is embedded and installed inside the heat exchange hollow sleeve (205); a plurality of suction fixing holes (207) are equidistantly provided at the side end and the bottom end of the heat exchange hollow sleeve (205); and a plurality of replacement fixing blocks (208) are sleeved on the outer ends of the heat exchange hollow sleeves (205); A plurality of heat exchange storage cavities (209) are equidistantly provided on the inner side of the replacement fixing block (208); a plurality of insertion exchange strips (210) are equidistantly embedded and installed at positions corresponding to the heat exchange hollow sleeve (205) on the inner side of the replacement fixing block (208); a heat exchange insulating sleeve (211) is sleeved on the outer end of the replacement fixing block (208); and a plurality of heat conduction exchange strips (212) are equidistantly clamped at positions corresponding to the heat exchange insulating sleeve (211) on the outer section of the replacement fixing block (208); The outer end of the heat exchange insulating sleeve (211) is equidistantly connected to a plurality of I-type exchange strips (213); a double convex multilayer sleeve (214) is fixed between two I-type exchange strips (213); a fixed mesh plate (215) is embedded and installed at the inner end of the double convex multilayer sleeve (214) at positions corresponding to the heat exchange strips (212) and the I-type exchange strips (213); and an insulating protective sleeve (216) is sleeved on the outer end of the I-type exchange strip (213); The side ends of the plurality of insulating protective sleeves (216) are sleeved with a multi-recessed snap-in strip (217), the inner side of the multi-recessed snap-in strip (217) is provided with a plurality of telescopic fixing cavities (218) at equal intervals, the side ends of the multi-recessed snap-in strip (217) are provided with exhaust fixing holes (219) at positions corresponding to the telescopic fixing cavities (218), the side ends of the multi-recessed snap-in strip (217) are provided with a plurality of embedded plug-in holes (220) at equal intervals, the inner sides of the embedded plug-in holes (220) are embedded and snap-in with elastic support columns (221), and the outer sides of the plurality of insulating protective sleeves (216) and the multi-recessed snap-in strip (217) are sleeved with triangular support sleeves (222).

2. The aluminum alloy cable for power transmission according to claim 1, characterized in that: A plurality of arc-shaped support strips (223) are fixed at equal intervals on the outer end of the triangular support sleeve (222), a plurality of elastic concave-convex cavities (224) are opened at equal intervals on the inner side of the arc-shaped support strip (223), a plurality of support buffer strips (225) are fixed at equal intervals on the outer end of the elastic concave-convex cavities (224), a plurality of support buffer strips (225) are bonded to the side ends of the plurality of support buffer strips (225) with a fitting support plate (226), a plurality of hollow fixing cavities (227) are opened at equal intervals on the inner side of the fitting support plate (226), a stab-proof telescopic strip (228) is fixed to the outer end of the hollow fixing cavity (227), a plurality of snap-fit ​​fixing grooves (229) are opened at equal intervals on the side end of the stab-proof telescopic strip (228), and an insulating support sleeve (230) is fixed to the outer ends of the plurality of stab-proof telescopic strips (228).

3. The aluminum alloy cable for power transmission according to claim 1, characterized in that: The side end of the inner hollow elastic block (203) is slidably fitted with the side end of the heat exchange hollow sleeve (205), the inner side end of the heat exchange hollow sleeve (205) is fitted with the outer side end of the elastic insulating sleeve (202), and the suction fixing hole (207) is sleeved and connected with the porous water absorption strip (206).

4. The aluminum alloy cable for power transmission according to claim 1, characterized in that: The inner end of the inserted exchange strip (210) is fitted with the outer end of the heat exchange hollow sleeve (205), and the longitudinal sections of the heat exchange hollow sleeve (205) and the porous water absorption strip (206) are both T-shaped.

5. The aluminum alloy cable for power transmission according to claim 1, characterized in that: The outer end of the heat exchange strip (212) is fitted with the inner end of the heat exchange insulation sleeve (211), and the side ends of the fixed mesh plate (215) are respectively fitted and connected with the heat exchange strip (212) and the I-type exchange strip (213).

6. The aluminum alloy cable for power transmission according to claim 2, characterized in that: The side ends of the fitting support plate (226) are sleeved and connected with the side ends of the multi-concave positioning strip (217), the insulating protective sleeve (216) and the triangular support sleeve (222); the longitudinal sections of the insertion exchange strip (210), the thermal conductivity exchange strip (212) and the support buffer strip (225) are all arc-shaped.

7. The aluminum alloy cable for power transmission according to claim 2, characterized in that: Combined injection components (3) are provided at both ends of the insulating support sleeve (230); The combined injection assembly (3) comprises an adhesive support ring (301); Adhesive support rings (301) are sleeved on both sides of the outer end of the insulating support sleeve (230), an internal threaded tube (302) is bonded to the outer end of the adhesive support ring (301), an external threaded tube (303) is threadedly connected to the outer end of the internal threaded tube (302), one end of the external threaded tube (303) is rotatably connected to a fitting sealing plate (304), one end of the fitting sealing plate (304) away from the external threaded tube (303) is welded with a fixed threaded ring (305), two fixed threaded rings (305) are threadedly connected with a double threaded tube (306), one end of the fitting sealing plate (304) is provided with a plurality of connection processing holes (307) at equal intervals, an oil absorption fixing sleeve (308) is fixed inside the connection processing hole (307), and an adsorption sponge pad (309) is fixed to the outer end of the oil absorption fixing sleeve (308); An injection fixing cylinder (310) is fixed to the middle of the outer end of the double-threaded tube (306); an injection support tube (311) is connected through the top of the injection fixing cylinder (310); a manual valve (312) is embedded and installed at one end of the injection support tube (311); a fitting sealing ring (313) is fixed to the inner side of the injection fixing cylinder (310); a lifting spring (314) is fixed to the top of the fitting sealing ring (313); an I-shaped sealing block (315) is welded to the top of the lifting spring (314); a supporting anti-rotation block (316) is bonded to the bottom of the outer ends of the double-threaded tube (306) and the insulating support sleeve (230); and a sealing protective pad (317) is bonded to the side ends of the internally threaded cylinder (302), the fitting sealing plate (304) and the double-threaded tube (306).

8. The aluminum alloy cable for power transmission according to claim 7, characterized in that: One end of the fitting sealing plate (304) is sleeved and connected with one end of the insulating support sleeve (230), the inner end of the external threaded tube (303) is rotationally connected with the outer end of the insulating support sleeve (230), and the two ends of the double threaded tube (306) are rotationally sleeved with one end of the two fitting sealing plates (304) respectively.

9. The aluminum alloy cable for power transmission according to claim 7, characterized in that: The cross section of the oil suction fixed sleeve (308) is cross-shaped, and the I-shaped sealing block (315) is slidably placed inside the injection fixed cylinder (310).

10. The aluminum alloy cable for power transmission according to claim 7, characterized in that: The I-shaped sealing block (315) is slidably fitted with the fitting sealing ring (313), and the two sealing protection pads (317) are mutually clamped and connected.

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