阅读说明：本技术 一种控湿散热式架空电缆 (Wet heat dissipation formula aerial [ insulated ] cable of accuse ) 是由 许德明 于 2021-05-06 设计创作，主要内容包括：本发明公开了一种控湿散热式架空电缆,属于电缆技术领域,本发明可以通过电缆下端设置多个控湿散热球的方式,对自然界的雨水进行收集,在电缆的热量可以及时散发出去时,控湿散热球为分离状态可以对雨水进行充分收集并储存,在电缆的热量无法及时散发出去时,通过主动触发控湿散热球的合并动作,可以实现将储存的雨水进行输送用于对电缆的散热上,一方面可以始终保持电缆高效的散热效率,维持电缆良好的工作温度,另一方面可以对收集的雨水进行合理的利用,提高对雨水的利用率,从而有效提高架空电缆的良好工作状态。(The invention discloses a humidity-control heat-dissipation type aerial cable, which belongs to the technical field of cables, and can collect rainwater in the nature by arranging a plurality of humidity-control heat-dissipation balls at the lower end of the cable, wherein when the heat of the cable can be dissipated timely, the humidity-control heat-dissipation balls are in a separated state, the rainwater can be fully collected and stored, and when the heat of the cable cannot be dissipated timely, the stored rainwater can be conveyed and used for dissipating the heat of the cable by actively triggering the combined action of the humidity-control heat-dissipation balls, so that the efficient heat dissipation efficiency of the cable can be always kept, the good working temperature of the cable can be maintained, the collected rainwater can be reasonably utilized, the utilization rate of the rainwater can be improved, and the good working state of the aerial cable can be effectively improved.)

1. The utility model provides a wet heat dissipation formula aerial [ insulated ] cable of accuse, includes oversheath (1), its characterized in that: the cable comprises an outer sheath (1), a cable core (3) is inserted into the inner side of the outer sheath (1), a waterproof layer (2) is filled between the outer sheath (1) and the cable core (3), a plurality of heat collecting blocks (5) which are uniformly distributed are connected to the lower end of the cable core (3) in an embedding manner, a plurality of heat conducting wire rings (6) corresponding to the heat collecting blocks (5) are sleeved at the outer end of the cable core (3), the heat conducting wire rings (6) are connected with the heat collecting blocks (5), a plurality of humidity control heat dissipation balls (4) corresponding to the heat collecting blocks (5) are connected to the lower end of the outer sheath (1) in an embedding manner, heat conducting vertical wires (7) are connected between the heat collecting blocks (5) and the humidity control heat dissipation balls (4), each humidity control heat dissipation ball (4) comprises a heat dissipation hemisphere (41), a humidity control hemisphere (42) and an anti-falling heat conduction net (43), the heat dissipation hemisphere (41) and the humidity control hemisphere (42) are symmetrically distributed, and the anti-falling heat conduction net (43) is connected to one end, which is close to the heat dissipation hemisphere (41), a plurality of heat absorption microspheres (44) are filled between the heat dissipation hemisphere (41) and the anti-falling heat conduction net (43), and the inner end of the humidity control hemisphere (42) is filled with a sponge mass (45).

2. The moisture-controlling and heat-dissipating overhead cable of claim 1, wherein: the heat dissipation hemisphere (41) is connected to the lower end of the outer sheath (1) in an embedded mode, the humidity control hemisphere (42) is located on the lower side of the outer sheath (1), and the anti-falling heat conduction net (43) is flush with the lower end face of the outer sheath (1).

3. The moisture-controlling and heat-dissipating overhead cable of claim 2, wherein: the inner end of the heat dissipation hemisphere (41) is connected with a thermal deformation net (8), and a separation and combination stay wire (9) is connected between the thermal deformation net (8) and the inner wall of the humidity control hemisphere (42).

4. The moisture-controlling and heat-dissipating overhead cable of claim 3, wherein: the heat dissipation hemisphere (41) is made of heat conduction materials, the humidity control hemisphere (42) is made of waterproof materials, and the thermal deformation net (8) is made of shape memory alloy materials with a two-way memory effect.

5. The moisture-controlling and heat-dissipating overhead cable of claim 1, wherein: the heat absorption microsphere (44) comprises a heat absorption shell (441), an inner ball swelling film (442) and a plurality of water supply blocks, wherein the inner ball swelling film (442) is attached to the inner end of the heat absorption shell (441), the heat absorption shell (441) is provided with a plurality of uniformly distributed water supply holes, and the water supply blocks are connected in the water supply holes in an embedded manner.

6. The moisture-controlling and heat-dissipating overhead cable of claim 5, wherein: the water supply block includes water permeable pressure layer (443), transfer layer (444) and many water guide lines (445), water permeable pressure layer (443) is connected in the outside opening part of water supply hole, transfer layer (444) is inlayed and is connected in interior bloated ball membrane (442) and water permeable pressure layer (443) between, water guide line (445) evenly connects on transfer layer (444), and water guide line (445) run through water guide line (445) and extend to the outside.

7. The moisture-controlling and heat-dissipating overhead cable of claim 5, wherein: the heat absorption shell (441) is made of light heat conduction materials, the inner expansion ball membrane (442) is made of elastic membrane materials, and hydrogen is filled in the inner expansion ball membrane (442).

8. The moisture-controlling and heat-dissipating overhead cable of claim 6, wherein: the water permeable pressing layer (443) is made of porous hydrophilic materials, and the transfer layer (444) and the water guide line (445) are made of water absorbing materials.

9. The moisture-controlling and heat-dissipating overhead cable of claim 1, wherein: the humidity control hemisphere (42) is connected with a plurality of water feeding fiber rods (10) which are uniformly distributed, and the water feeding fiber rods (10) penetrate through the anti-falling heat conduction net (43) and extend to the inner side of the heat dissipation hemisphere (41).

10. The moisture-controlling and heat-dissipating overhead cable of claim 1, wherein: the lower end of the outer sheath (1) is connected with a plurality of heat collecting blocks (5) which are uniformly distributed around the humidity control heat dissipation ball (4), and the heat collecting blocks (5) are inclined downwards along the direction close to the humidity control heat dissipation ball (4) and keep continuous on the outer sheath (1).

Technical Field

The invention relates to the technical field of cables, in particular to a humidity-control heat-dissipation type overhead cable.

Background

A cable is a power or signal transmission device, and is generally composed of several wires or groups of wires.

Definition 1: the cable is made of one or more conductors insulated from each other and an outer insulating protective layer, and is used for transmitting power or information from one place to another.

Definition 2: typically a rope-like cable made up of several or groups of conductors (at least two in each group) twisted together, with the conductors of each group being insulated from one another and often twisted around a center, the entire outer surface being coated with a highly insulating coating. The cable has the characteristics of internal electrification and external insulation.

The overhead cable (called overhead insulated cable) is an overhead conductor with insulating layer and protective sheath, and is a special cable made up by adopting the similar production process of cross-linked cable, and is a new power transmission mode between overhead conductor and underground cable. The aerial cable is a single core, and can be divided into a duralumin wire structure, an aluminum alloy wire structure, a steel core or aluminum alloy core supporting structure, a self-supporting three-core threaded structure (the wire core can be duralumin or duralumin wire) and the like according to different structures. The power supply system has the main characteristics of high power supply reliability, good power supply safety, convenience in erection and maintenance, reasonable economy and the like. The main technical parameters comprise weather resistance, insulation level, inner and outer semi-conductive shielding layers. The overhead cable has wide transmission application at home and abroad.

Aerial [ insulated ] cable need give off the heat that produces in the use, but because the high protectiveness of cable can restrict the heat-sinking capability of cable on the contrary, in case the too much heat of cable gathering can't in time distribute away, has the risk that cable transmission performance descends or even the cable burns out.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems in the prior art, the invention aims to provide a humidity-control heat-dissipation type overhead cable, rainwater in the nature can be collected by arranging a plurality of humidity-control heat-dissipation balls at the lower end of the cable, when the heat of the cable can be dissipated timely, the humidity-control heat-dissipation balls are in a separated state, the rainwater can be fully collected and stored, when the heat of the cable cannot be dissipated timely, the stored rainwater can be conveyed and used for dissipating the heat of the cable by actively triggering the combined action of the humidity-control heat-dissipation balls, on one hand, the efficient heat dissipation efficiency of the cable can be always kept, the good working temperature of the cable can be maintained, on the other hand, the collected rainwater can be reasonably utilized, the utilization rate of the rainwater is improved, and the good working state of the overhead cable is effectively improved.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

A humidity-control heat-dissipation type overhead cable comprises an outer sheath, wherein a cable core is inserted into the inner side of the outer sheath, a waterproof layer is filled between the outer sheath and the cable core, the lower end of the cable core is embedded and connected with a plurality of heat-collecting blocks which are uniformly distributed, the outer end of the cable core is sleeved with a plurality of heat-conducting wire rings corresponding to the heat-collecting blocks, the heat conducting wire ring is connected with the heat collecting block, the lower end of the outer sheath is embedded and connected with a plurality of humidity control and heat dissipation balls corresponding to the heat collecting block, a heat-conducting vertical wire is connected between the heat-collecting block and the humidity-controlling heat-dissipating ball, the humidity-controlling heat-dissipating ball comprises a heat-dissipating hemisphere, a humidity-controlling hemisphere and a falling-preventing heat-conducting net, the heat dissipation hemisphere and the humidity control hemisphere are symmetrically distributed, the anti-falling heat conduction net is connected to one end of the heat dissipation hemisphere close to the humidity control hemisphere, a plurality of heat absorption microspheres are filled between the heat dissipation hemisphere and the anti-falling heat conduction net, and a sponge mass is filled at the inner end of the humidity control hemisphere.

Furthermore, the heat dissipation hemisphere is connected to the lower end of the outer sheath in an embedded mode, the humidity control hemisphere is located on the lower side of the outer sheath, the anti-falling heat conduction net is flush with the lower end face of the outer sheath, the heat dissipation hemisphere is used for playing a main heat dissipation role for the cable core, the humidity control hemisphere is used for collecting rainwater in the nature and storing the rainwater for later use, and the anti-falling heat conduction net plays a role in packaging the heat absorption microspheres and prevents the heat absorption microspheres from falling off.

Furthermore, the inner end of the heat dissipation hemisphere is connected with a thermal deformation net, a dividing and combining stay wire is connected between the thermal deformation net and the inner wall of the humidity control hemisphere, when the heat dissipation hemisphere indirectly senses that the heat of the cable core is accumulated more, the dividing and combining stay wire is pulled through the deformation of the thermal deformation net, so that the combining action of the humidity control hemisphere and the heat dissipation hemisphere is triggered, then the stored rainwater is conveyed to the heat absorption microspheres in the heat dissipation hemisphere for heat dissipation, and compared with the conventional heat dissipation effect, the heat dissipation effect is remarkably improved.

Furthermore, the heat dissipation hemisphere is made of heat conduction materials, the humidity control hemisphere is made of waterproof materials, and the thermal deformation net is made of shape memory alloy materials with a two-way memory effect.

Further, the heat absorption microballon includes heat absorption shell, interior bloated ball membrane and a plurality of water supply block, interior bloated ball membrane subsides cover in heat absorption shell inner, set up a plurality of evenly distributed's supply hole on the heat absorption shell, the water supply block is inlayed and is connected in the supply hole, and the heat absorption microballon absorbs the heat in the heat dissipation hemisphere, then gives off to the external world, after the rainwater soaks the heat absorption microballon after the wet hemisphere of accuse merges, can absorb a large amount of heats and realize cooling, utilize the water supply block to store unnecessary moisture simultaneously to in subsequent radiating process initiatively release and be used for the heat dissipation, reduce the frequency that the wet hemisphere of accuse merges, the rainwater of rational utilization transport on the one hand avoids unnecessary rainwater to cause the loss, on the other hand can effectively protect thermal deformation net and reduce the deformation number of times, thereby the life of extension thermal deformation net.

Further, the water supply block is including permeating water and pressing layer, transfer layer and many water guide lines, the outside opening part in the water supply hole is connected to the pressure layer that permeates water, the transfer layer is inlayed and is connected in interior bloated ball membrane and permeate water between the pressure layer, water guide line evenly connected is on the transfer layer, and the water guide line runs through water guide line and extends to the outside, permeates water and presses the layer and can carry unnecessary rainwater to the transfer layer in and store, then including bloated ball membrane thermal expansion back, thereby extrude the transfer layer and release absorptive rainwater for the secondary is the heat dissipation many times even, and the water guide line then plays the effect of supplementary absorption and release rainwater.

Furthermore, the heat absorption shell is made of a light heat conduction material, the inner expansion ball film is made of an elastic film-shaped material, hydrogen is filled in the inner expansion ball film, the overall quality of the humidity-control heat dissipation ball is kept light, excessive load on an overhead cable is avoided, meanwhile, the subsequent heat absorption microspheres can move inside conveniently, the rainwater distribution is improved, the gas flowing effect between the inside of the heat dissipation hemisphere and the external environment is improved, the heat dissipation efficiency is improved to a certain degree, the hydrogen expands obviously when being heated, and the inner expansion ball film 442 is forced to extrude the transfer layer 444 from the expansion of the water supply hole, so that stored rainwater is released.

Furthermore, the permeable pressing layer is made of porous hydrophilic materials, and the transfer layer and the water guide line are made of water absorption materials.

Furthermore, be connected with many evenly distributed's the fibrous pole of sending water on the wet hemisphere of accuse, and send the fibrous pole of water to run through and prevent falling heat conduction net and extend to the heat dissipation hemisphere inboard, when the wet hemisphere of accuse merges to the heat dissipation hemisphere, send the fibrous pole of water to enter into and extrude the migration to the heat absorption microballon in the heat dissipation hemisphere, can improve the moist effect of rainwater to the heat absorption microballon on the one hand, on the other hand drives the air flow between the heat absorption microballon space and promotes the heat dissipation.

Furthermore, the lower end of the outer sheath is connected with a plurality of heat collecting blocks which are uniformly distributed around the humidity control heat dissipation ball, the heat collecting blocks are inclined downwards along the direction close to the humidity control heat dissipation ball and keep continuous on the outer sheath, the heat collecting blocks can guide rainwater on the outer surface of the outer sheath to the humidity control heat dissipation ball for collection, the humidity control heat dissipation ball can be guaranteed to collect enough rainwater to maintain efficient heat dissipation for a long time as far as possible, and the utilization rate of the rainwater is fully improved.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

(1) this scheme can set up the mode of a plurality of wet heat dissipation balls of accuse through the cable lower extreme, collect the rainwater of nature, when the heat of cable can in time distribute away, wet heat dissipation ball of accuse can fully collect and store the rainwater for the detached state, when the heat of cable can't in time distribute away, through the amalgamation action of the wet heat dissipation ball of initiative trigger accuse, can realize carrying the rainwater of storing and be used for on the heat dissipation to the cable, can keep cable efficient radiating efficiency all the time on the one hand, maintain the good operating temperature of cable, on the other hand can carry out reasonable utilization to the rainwater of collecting, the improvement is to the utilization ratio of rainwater, thereby effectively improve aerial cable's good operating condition.

(2) The heat dissipation hemisphere is embedded and connected at the outer sheath lower extreme, and wet hemisphere of accuse is located the downside of outer sheath, and the heat conduction net that prevents falling keeps flushing with the lower terminal surface of outer sheath, and the heat dissipation hemisphere is used for playing the main radiating action to the cable core, and wet hemisphere of accuse is used for collecting the rainwater of nature and stores for later use, and the heat conduction net that prevents falling then plays the encapsulation effect to the heat absorption microballon, avoids the heat absorption microballon to drop.

(3) The inner of the heat dissipation hemisphere is connected with a thermal deformation net, a dividing and combining stay wire is connected between the thermal deformation net and the inner wall of the humidity control hemisphere, when the heat accumulation of the cable core is sensed indirectly by the heat dissipation hemisphere, the dividing and combining stay wire is pulled through the deformation of the thermal deformation net, so that the combining action of the humidity control hemisphere and the heat dissipation hemisphere is triggered, then stored rainwater is conveyed to the heat absorption microspheres in the heat dissipation hemisphere for heat dissipation, and compared with the conventional heat dissipation effect, the heat dissipation effect is remarkably improved.

(4) The heat dissipation hemisphere is made of heat conduction materials, the humidity control hemisphere is made of waterproof materials, the thermal deformation net is made of shape memory alloy materials with a two-way memory effect, the shape memory alloy materials are in a bending state at normal temperature, and the shape memory alloy materials can contract and straighten when heated, so that the humidity control hemisphere is forced to be combined through the split-combination pull wires.

(5) The heat absorption microsphere comprises a heat absorption shell, an inner expansion spherical membrane and a plurality of water supply blocks, wherein the inner expansion spherical membrane is attached to the inner end of the heat absorption shell, a plurality of water supply holes which are uniformly distributed are formed in the heat absorption shell, the water supply blocks are connected in the water supply holes in an embedded mode, the heat absorption microspheres are filled in the heat dissipation hemispheres to absorb heat and then are distributed to the outside, after the heat absorption microspheres are soaked by rainwater after the humidity control hemispheres are combined, a large amount of heat can be absorbed to achieve cooling, meanwhile, the water supply blocks are used for storing redundant moisture, the excessive moisture is actively released in the subsequent heat dissipation process to dissipate the heat, the frequency of combining the humidity control hemispheres is reduced, on one hand, conveyed rainwater is reasonably utilized, the redundant rainwater is prevented from being lost, on the other hand, the heat deformation mesh can be effectively protected, the deformation frequency is reduced, and the service life of the heat deformation mesh is prolonged.

(6) The water supply block is including permeating water the bed course, transfer layer and many water guide lines, the bed course of permeating water is connected in the outside opening part in the water supply hole, the transfer layer is inlayed and is connected in interior bloated ball membrane and permeate water between the bed course, the water guide line evenly connects on the transfer layer, and the water guide line runs through water guide line and extends to the outside, the bed course of permeating water can be carried unnecessary rainwater to the transfer in and store, then after bloated ball membrane is heated the inflation including, thereby extrude the transfer layer and release absorptive rainwater, be used for the secondary to be many times even dispel the heat, the water guide line then plays the effect of supplementary absorption and release rainwater.

(7) The heat absorption shell adopts light heat conduction material to make, interior bloated ball membrane adopts the membranous material of elasticity to make, and interior bloated ball intramembranous intussuseption is filled with hydrogen, it is lighter to keep the holistic quality of wet heat dissipation ball of accuse, avoid causing too big load to the aerial [ insulated ] cable, the inside removal of the follow-up heat absorption microballon of also being convenient for simultaneously, when improving rainwater distribution, improve the inside gas flow effect with external environment of heat dissipation hemisphere, thereby improve the heat dissipation efficiency to a certain extent, and hydrogen inflation is comparatively obvious when being heated, thereby force interior bloated ball membrane 442 to extrude transfer layer 444 from the water supply hole inflation, release the rainwater of storage.

(8) Be connected with many evenly distributed's the fibrous pole of sending water on the wet hemisphere of accuse, and send the fibrous pole of water to run through and prevent falling heat conduction net and extend to the heat dissipation hemisphere inboard, when the wet hemisphere of accuse merges to the heat dissipation hemisphere, send the fibrous pole of water to enter into and extrude the migration to the heat absorption microballon in the heat dissipation hemisphere, can improve the moist effect of rainwater to the heat absorption microballon on the one hand, on the other hand drives the air flow between the heat absorption microballon space and promotes the heat dissipation.

(9) The lower end of the outer sheath is connected with a plurality of heat collecting blocks which are uniformly distributed around the humidity control heat dissipation ball, the heat collecting blocks are inclined downwards along the direction close to the humidity control heat dissipation ball and keep continuous on the outer sheath, the heat collecting blocks can guide rainwater on the outer surface of the outer sheath to the humidity control heat dissipation ball for collection, the humidity control heat dissipation ball can collect enough rainwater to maintain efficient heat dissipation for a long time as far as possible, and the utilization rate of the rainwater is fully improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view of the present invention;

FIG. 3 is a schematic structural view of a humidity control heat dissipation ball according to the present invention;

FIG. 4 is a schematic structural view of heat absorbing microspheres of the present invention;

fig. 5 is a schematic view of the structure at a in fig. 4.

The reference numbers in the figures illustrate:

the heat-insulating material comprises an outer sheath 1, a waterproof layer 2, a cable core 3, a humidity-controlling heat-dissipating ball 4, a heat-dissipating hemisphere 41, a humidity-controlling hemisphere 42, a heat-conducting anti-falling net 43, a heat-absorbing microsphere 44, a heat-absorbing shell 441, a spherical expansion membrane 442, a water-permeable pressure layer 443, a transfer layer 444, a water-conducting line 445, a sponge mass 45, a heat-collecting block 5, a heat-conducting wire ring 6, a heat-conducting vertical wire 7, a heat-deformation net 8, a split-combined pull wire 9 and a water-feeding fiber rod 10.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1:

referring to fig. 1-2, a humidity-controlling and heat-dissipating type overhead cable comprises an outer sheath 1, a cable core 3 is inserted into the inner side of the outer sheath 1, a waterproof layer 2 is filled between the outer sheath 1 and the cable core 3, so that the danger caused by rainwater penetrating to the cable core 3 can be effectively avoided, a plurality of heat-collecting blocks 5 which are uniformly distributed are connected to the lower end of the cable core 3 in an embedded manner, a plurality of heat-conducting wire rings 6 corresponding to the heat-collecting blocks 5 are sleeved on the outer end of the cable core 3, the heat-conducting wire rings 6 are connected with the heat-collecting blocks 5, a plurality of humidity-controlling and heat-dissipating balls 4 corresponding to the heat-collecting blocks 5 are connected to the lower end of the outer sheath 1 in an embedded manner, and heat-conducting vertical wires 7 are connected between the heat-collecting blocks 5 and the humidity-controlling and heat-dissipating balls 4.

The lower end of the outer sheath 1 is connected with a plurality of heat collecting blocks 5 which are uniformly distributed around the humidity control heat dissipation ball 4, the heat collecting blocks 5 are inclined downwards along the direction close to the humidity control heat dissipation ball 4 and keep continuous on the outer sheath 1, the heat collecting blocks 5 can guide rainwater on the outer surface of the outer sheath 1 to the humidity control heat dissipation ball 4 for collection, the humidity control heat dissipation ball 4 can be guaranteed to collect enough rainwater to maintain efficient heat dissipation for a long time as far as possible, and the utilization rate of the rainwater is fully improved.

Referring to fig. 3, the humidity-controlling heat-dissipating ball 4 includes a heat-dissipating hemisphere 41, a humidity-controlling hemisphere 42 and a falling-preventing heat-conducting net 43, the heat-dissipating hemisphere 41 and the humidity-controlling hemisphere 42 are symmetrically distributed, the falling-preventing heat-conducting net 43 is connected to one end of the heat-dissipating hemisphere 41 close to the humidity-controlling hemisphere 42, a plurality of heat-absorbing microspheres 44 are filled between the heat-dissipating hemisphere 41 and the falling-preventing heat-conducting net 43, a sponge mass 45 is filled at an inner end of the humidity-controlling hemisphere 42, and the heat-dissipating hemisphere 41 and the humidity-controlling hemisphere 42 are in a separated state in a normal state.

The heat dissipation hemisphere 41 is connected to the lower end of the outer sheath 1 in an embedded manner, the humidity control hemisphere 42 is located on the lower side of the outer sheath 1, the anti-falling heat conduction net 43 is flush with the lower end face of the outer sheath 1, the heat dissipation hemisphere 41 is used for playing a main heat dissipation role for the cable core 3, the humidity control hemisphere 42 is used for collecting rainwater in the nature and storing the rainwater for later use, and the anti-falling heat conduction net 43 plays a packaging role for the heat absorption microspheres 44 to prevent the heat absorption microspheres 44 from falling off.

The inner of heat dissipation hemisphere 41 is connected with thermal deformation net 8, be connected with divide-shut acting line 9 between thermal deformation net 8 and the wet hemisphere of accuse 42 inner wall, when heat accumulation of cable core 3 is more in the indirect perception of heat dissipation hemisphere 41, draw divide-shut acting line 9 through the deformation pulling of thermal deformation net 8 to trigger the merging action of wet hemisphere of accuse 42 and heat dissipation hemisphere 41, then carry the rainwater of storing to be used for the heat dissipation on the heat absorption microballon 44 in the heat dissipation hemisphere 41, compare with conventional radiating effect and show the promotion.

The humidity control hemisphere 42 is connected with a plurality of water feeding fiber rods 10 which are uniformly distributed, the water feeding fiber rods 10 penetrate through the anti-falling heat conduction net 43 and extend to the inner side of the heat dissipation hemisphere 41, the water feeding fiber rods 10 are also made of water absorption materials, when the humidity control hemisphere 42 is combined with the heat dissipation hemisphere 41, the water feeding fiber rods 10 can enter the heat dissipation hemisphere 41 to extrude and move the heat absorption microspheres 44, on one hand, the wetting effect of rainwater on the heat absorption microspheres 44 can be improved, and on the other hand, air flowing between gaps of the heat absorption microspheres 44 is driven to promote heat dissipation.

The heat dissipation hemisphere 41 is made of heat conduction materials, the humidity control hemisphere 42 is made of waterproof materials, the thermal deformation net 8 is made of shape memory alloy materials with a two-way memory effect, the shape memory alloy materials are in a bending state at normal temperature, and the shape memory alloy materials can contract and straighten when heated, so that the humidity control hemisphere 42 is forced to be combined through the opening and closing pull wire 9.

Referring to fig. 4, the heat absorbing microspheres 44 include a heat absorbing case 441, an inner swelling membrane 442 and a plurality of water supply blocks, the inner swelling membrane 442 is attached to the inner end of the heat absorbing case 441, the heat absorbing case 441 is provided with a plurality of water supply holes uniformly distributed, the water supply blocks are connected to the water supply holes in an embedded manner, the heat absorbing microspheres 44 are filled in the heat dissipating hemisphere 41 to absorb heat and then dissipate the heat to the outside, after the humidity control hemispheres 42 are combined and the heat absorption microspheres 44 are soaked by rainwater, a large amount of heat can be absorbed to realize cooling, meanwhile, the water supply block is used for storing redundant moisture, the moisture is actively released in the subsequent heat dissipation process for heat dissipation, the frequency of combination of the humidity control hemispheres 42 is reduced, on one hand, the conveyed rainwater is reasonably utilized, the redundant rainwater is prevented from being lost, on the other hand, the thermal deformation net 8 can be effectively protected, the deformation times are reduced, and therefore the service life of the thermal deformation net 8 is prolonged.

Referring to fig. 5, the water supply block includes a water permeable layer 443, a transfer layer 444 and a plurality of water guide lines 445, the water permeable layer 443 is connected to an outer opening of the water supply hole, the transfer layer 444 is connected between the inner swelling membrane 442 and the water permeable layer 443 in an embedded manner, the water guide lines 445 are uniformly connected to the transfer layer 444, the water guide lines 445 penetrate through the water guide lines 445 and extend to the outer side, the water permeable layer 443 can convey excess rainwater to the transfer layer 444 for storage, and then the transfer layer 444 is squeezed to release the absorbed rainwater after the inner swelling membrane 442 is heated and expanded, so as to dissipate the rainwater for two or even multiple times, and the water guide lines 445 play a role in assisting in absorbing and releasing the rainwater.

The heat absorption shell 441 is made of a light heat conduction material, the inner expansion ball film 442 is made of an elastic film material, hydrogen is filled in the inner expansion ball film 442, the whole quality of the humidity control heat dissipation ball 4 is kept light, excessive load on an overhead cable is avoided, meanwhile, the subsequent heat absorption microspheres 44 can move inside conveniently, rainwater distribution is improved, meanwhile, the gas flowing effect between the inside of the heat dissipation hemisphere 41 and the external environment is improved, heat dissipation efficiency is improved to a certain degree, the hydrogen expands obviously when being heated, and the inner expansion ball film 442 is forced to extrude the transfer layer 444 from the expansion of the water supply hole, and stored rainwater is released.

The permeable layer 443 is made of porous hydrophilic material, and the transfer layer 444 and the water guide line 445 are made of water-absorbing material.

According to the invention, rainwater in the nature can be collected by arranging the plurality of humidity control heat dissipation balls 4 at the lower end of the cable, when the heat of the cable can be dissipated in time, the humidity control heat dissipation balls 4 are in a separated state, the rainwater can be fully collected and stored, and when the heat of the cable cannot be dissipated in time, the stored rainwater can be conveyed for dissipating the heat of the cable by actively triggering the combination action of the humidity control heat dissipation balls 4, so that the efficient heat dissipation efficiency of the cable can be always kept, the good working temperature of the cable can be maintained, the collected rainwater can be reasonably utilized, the utilization rate of the rainwater can be improved, and the good working state of the overhead cable can be effectively improved.

The above are merely preferred embodiments of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.