Flexible shielding type power wire harness

Abstract

The invention belongs to the technical field of power wire harnesses, and particularly relates to a flexible shielding type power wire harness which comprises a wire core structure, a shielding structure is arranged on the outer surface of the wire core structure, an adjusting structure is arranged at one end of the shielding structure, and the wire core structure comprises a plurality of metal bodies; the shielding structure comprises an elastic sleeve, a shielding woven mesh is arranged on the outer surface of the elastic sleeve, and a grounding wire is arranged on one side of the shielding woven mesh; the adjusting structure comprises an end ring, a plurality of side grooves are uniformly formed in the side, close to the grounding wire, of the end ring, two check blocks are symmetrically arranged at the end of the inner wall of each side groove, a plurality of heat dissipation holes are uniformly formed in each check block, a sliding block is slidably connected to the interior of each side groove, and a transfer hole is formed in each sliding block; the flexible shielding type power wire harness is high in power-on efficiency, high in power-on stability, good in flexibility, capable of meeting different working environment requirements, high in shielding performance on external electromagnetic waves and capable of guaranteeing continuous and stable work of the inner wire core structure.

Description

Technical Field

[0001] The invention belongs to the technical field of power harnesses, in particular to a soft shielding power harness. Background Art

[0002] Shielded power harness is a specially designed harness whose main purpose is to reduce or prevent the transmission of electromagnetic energy, thereby suppressing electromagnetic interference (EMI). This harness is designed with a variety of shielding technologies to ensure electromagnetic compatibility (EMC). Common shielding methods include spiral shielding, braided shielding and metal foil shielding. Braided shielding is suitable for protection against high-frequency and low-frequency interference. Shielded power harness can provide effective electromagnetic interference protection in various electromagnetic environments through its unique design and material selection, ensuring the stable operation of the electrical system.

[0003] Chinese invention patent CN114255914B provides a shielded electric wire, comprising: an electric wire, which includes a conductor part and a covering part covering the conductor part; a shielding braid, which is formed by a conductive wire material, and the shielding braid covers the outer periphery of the covering part; and a sheath, which is formed by an insulating resin, and the sheath is arranged around the shielding braid; the electric wire and the shielding braid together form a wire assembly; the shielding wire harness has low shielding efficiency and poor shielding effect.

[0004] Chinese invention patent CN107799207B discloses a shielded wire, comprising: an electric wire, which comprises a conductor portion and a covering portion; a shielding braid, in which conductive wires are braided and the shielding braid covers the periphery of the electric wire; and a tubular sheath, which is arranged on the periphery of the shielding braid and is made of insulating resin; the shielding wire harness has poor control performance and its flexibility does not meet the requirements.

[0005] The existing soft shielded power harness needs to ground the shielding layer during actual use to achieve the shielding function against external electromagnetic waves. When the wire core structure works for a long time or the external temperature changes, the copper wire inside the shielding layer will also change due to its own thermal expansion and contraction. The change in the weaving density of the shielding layer will not only reduce the shielding effect against external electromagnetic waves, but also affect the heat dissipation efficiency of the internal wire core structure, thereby reducing the working stability of the wire core structure.

[0006] Moreover, the existing power wiring harness lacks the elastic buffering effect against external forces. When the power wiring harness is impacted, it is easy to be damaged and bent, and affect the mesh structure of the internal shielding layer. When the shielding layer transmits the force to the grounding wire end, the grounding wire will be separated from the ground wire, thereby reducing the shielding effect against external electromagnetic waves.

[0007] When a short circuit occurs in the wire core structure or the external temperature is too high, if the wire core structure cannot be disconnected in time, it will cause the wire core structure to catch fire and cause a major safety accident; but when the external temperature is too low, the weaving density of the shielding layer is too high, which will cause the shielding layer to be over-woven, further reducing the shielding effect of the shielding layer. Summary of the invention

[0008] In response to the above problems, such as changes in heat dissipation and shielding efficiency of the shielding layer due to temperature changes, deformation due to external forces and separation of the grounding wire, or the impact on the shielding effect when the external temperature is too high or too low, the present invention provides a soft shielded power cable harness.

[0009] To achieve the above object, the present invention provides the following technical solution: a soft shielded power harness, comprising a wire core structure, a shielding structure is provided on the outer surface of the wire core structure, and an adjustment structure is provided at one end of the shielding structure:

[0010] The wire core structure includes a plurality of metal bodies;

[0011] The shielding structure comprises an elastic sleeve, the outer surface of the elastic sleeve is provided with a shielding braided mesh, and one side of the shielding braided mesh is provided with a grounding wire;

[0012] The adjustment structure includes an end ring, a plurality of side grooves are evenly arranged on the side of the end ring close to the grounding wire, two blocks are symmetrically arranged on the inner wall end of the side groove, a plurality of heat discharge holes are evenly arranged inside the block, a sliding block is slidably connected inside the side groove, a transfer hole is opened inside the sliding block, two fixed blocks are symmetrically arranged on both side walls of the sliding block, a plurality of through holes are evenly arranged inside the fixed block, a blocking block is sealingly and slidably connected inside the through hole, and a flow hole is opened inside the fixed block.

[0013] The present application drives the sliding block to move in response to the changes in the thermal expansion and contraction of the thermally expanded gas inside the expansion chamber, thereby adjusting the heat dissipation efficiency and shielding effect of the shielding braided mesh to meet actual power-on requirements; at the same time, it can also protect the soft shielded power harness when the external temperature is too high or too low, thereby improving safety and stability.

[0014] Preferably, the material of the metal body is copper wire, the outer surface of the metal body is provided with an insulating sleeve, the material of the insulating sleeve is polyvinyl chloride, the outer surface of the insulating sleeve is provided with a first protective sleeve, the material of the first protective sleeve is rubber, the inner wall of the elastic sleeve is in contact with the outer surface of the first protective sleeve, a filling layer is formed between the elastic sleeve and the first protective sleeve, a supporting layer is provided between multiple first protective sleeves, and the materials of the filling layer and the supporting layer are both polypropylene tear film strips.

[0015] Preferably, the shielding braided mesh is made of copper wire and has a mesh structure. The grounding wire is formed by peeling off the end of the shielding braided mesh. The inner wall of the shielding braided mesh is sealed and slidably connected to the outer surface of the elastic sleeve. The inner wall of the end ring is slidably connected to the outer surface of the shielding braided mesh. The material of the elastic sleeve is thermoplastic elastomer. The outer surface of the shielding braided mesh is provided with a second protective sleeve. The material of the second protective sleeve is silicone. The end ring is fixedly connected to the side wall of the second protective sleeve on the side away from the grounding wire.

[0016] Preferably, an expansion cavity is formed between the end of the fixed block away from the stopper and the inner wall end of the side groove, and heat expansion gas flows inside the expansion cavity. A heat dissipation cavity is formed between the end of the fixed block close to the stopper and the opening end of the side groove, and heat dissipation gas flows inside the heat dissipation cavity. One end of the heat exhaust hole is connected to the heat exhaust cavity, and the other end of the heat exhaust hole is connected to the outside world.

[0017] Preferably, the position of the side groove corresponds to a plurality of metal bodies, a top block is provided on the side of the blocking block away from the block, a limiting plate is provided on the other end of the top block, a plurality of supporting springs are evenly provided on one side of the limiting plate, the other end of the supporting spring is fixedly connected to the side wall of the fixed block, a connecting rod is provided on the side of the blocking block close to the block, and a sealing block is provided on the other side of the connecting rod.

[0018] Preferably, the area value of the sealing block is greater than the diameter value of the heat exhaust hole, the outer surface of the sealing block is sealingly and slidingly connected to the inner wall of the through hole, the height values ​​of the top block and the connecting rod are both smaller than the height value of the through hole, the height value and width value of the connecting rod are both smaller than the height value and width value of the blocking block, and a filter screen is provided inside the heat exhaust hole, and a plurality of filter holes are evenly arranged inside the filter screen.

[0019] Preferably, the length of the top block is greater than the length of the blocking block, and the height of the top block is less than the height of the blocking block, one end of the fixed block away from the sliding block is sealingly and slidingly connected to the inner wall of the side groove, the blocking block matches the flow hole, and the outer surface of the blocking block is sealingly and slidingly connected to the inner wall of the through hole, one end of the flow hole is connected to the through hole, and the other end of the flow hole is connected to the transfer hole.

[0020] Preferably, a plurality of connecting springs are evenly arranged on one side of the fixed block close to the stopper, the other end of the connecting spring is fixedly connected to the side wall of the stopper, the facing end surfaces of the stopper are sealingly and slidingly connected to the side wall of the sliding block, and a buckle is provided on one side of the sliding block close to the shielding braided mesh, and the other end of the buckle is clamped with the outer surface of the shielding braided mesh.

[0021] Preferably, a bottom groove is provided on the side of the sliding block close to the elastic sleeve, the end of the transfer hole away from the flow hole is connected to the top of the bottom groove, the bottom groove is opened at the end of the buckle away from the stopper, and a plurality of return springs are evenly arranged on the inner wall of the bottom groove. A cutter is provided at the other end of the return spring, the outer surface of the cutter is sealingly and slidably connected to the inner wall of the bottom groove, and the other end of the cutter is in extrusion contact with the outer surface of the elastic sleeve.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. The present invention sets the core structure, shielding structure and adjustment structure and other components to cooperate with each other. The soft shielded power harness has high power-on efficiency, strong power-on stability and good flexibility. It can meet the needs of different working environments, has strong shielding performance against external electromagnetic waves, and ensures that the internal core structure can work continuously and stably.

[0024] 2. The present invention sets up the cooperation between components such as sliding blocks and buckles. When the current of the core structure or the temperature of the external environment changes, the sliding blocks move synchronously inside the side grooves and drive the shielding braided mesh to move through the buckles, thereby ensuring that the heat dissipation performance and shielding performance of the shielding braided mesh are continuously stable, with stronger adaptability and higher stability.

[0025] 3. The present invention sets the cooperation between the cutter and the expansion chamber and other components. When the wire core structure is short-circuited or the temperature of the external environment is too high, the cutter moves along the bottom groove and cuts off the wire core structure, thereby achieving rapid power outage and avoiding major accidents such as spontaneous combustion. It is safer and has a stronger self-protection function.

[0026] 4. The present invention sets the flow holes and transfer holes and other components to cooperate with each other. When the external temperature is too low, the sliding block moves in the opposite direction synchronously and ensures that the weaving density of the shielding braided mesh meets the requirements, thereby avoiding over-weaving and other situations that affect the normal power supply of the core structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0028] Figure 2 It is a schematic diagram of the internal three-dimensional structure of the present invention;

[0029] Figure 3 for Figure 2 The enlarged schematic diagram at A in the middle;

[0030] Figure 4 for Figure 2 The enlarged schematic diagram of point B in the middle;

[0031] Figure 5 It is an exploded and enlarged stereoscopic schematic diagram of the power harness of the present invention;

[0032] Figure 6 It is an exploded and enlarged stereoscopic schematic diagram of the regulating structure part of the present invention;

[0033] Figure 7 It is a schematic diagram of the internal three-dimensional structure of the present invention as viewed from above;

[0034] Figure 8 It is a schematic diagram of the internal three-dimensional structure of the present invention from the right side;

[0035] Fig. 9 for Figure 8 Enlarged schematic diagram at point C in the middle.

[0036] In the figure: 1. core structure; 101. metal body; 102. insulation sleeve; 103. first protective sleeve; 104. filling layer; 105. support layer; 2. shielding structure; 201. elastic sleeve; 202. shielding braided mesh; 203. grounding wire; 204. second protective sleeve; 3. adjustment structure; 301. end ring; 302. side groove; 3021. expansion cavity; 3022. heat dissipation cavity; 303. stopper; 304 , sliding block; 305, transfer hole; 306, fixed block; 307, through hole; 308, blocking block; 309, top block; 310, connecting rod; 311, sealing block; 312, flow hole; 313, connecting spring; 314, buckle; 315, bottom groove; 316, cutter; 317, reset spring; 318, heat exhaust hole; 319, filter screen; 320, filter hole; 321, limit plate; 322, support spring. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] like Figure 1-9 As shown, a soft shielded power harness includes a core structure 1, which transmits current. The outer surface of the core structure 1 is provided with a shielding structure 2, which shields electromagnetic waves outside the core structure 1. An adjustment structure 3 is provided at one end of the shielding structure 2, which adjusts the shielding efficiency and heat dissipation effect of the shielding structure 2, thereby satisfying the shielding effect of the shielding structure 2 of the core structure 1 at different temperatures.

[0039] The wire core structure 1 includes multiple metal bodies 101. The material of the metal bodies 101 is copper wire. The power-carrying effect of the copper wire is stable. The outer surface of the metal body 101 is provided with an insulating sleeve 102. The material of the insulating sleeve 102 is polyvinyl chloride. The insulating sleeve 102 insulates and protects the internal metal body 101. The outer surface of the insulating sleeve 102 is provided with a first protective sleeve 103. The material of the first protective sleeve 103 is rubber. The first protective sleeve 103 wraps and protects the internal metal body 101. The inner wall of the elastic sleeve 201 is in contact with the outer surface of the first protective sleeve 103. A filling layer 104 is formed between the elastic sleeve 201 and the first protective sleeve 103. A supporting layer 105 is provided between the multiple first protective sleeves 103. The materials of the filling layer 104 and the supporting layer 105 are both polypropylene tear film strips. With the help of the wrapping and supporting effect of the filling layer 104 and the supporting layer 105, the strength of the wire core structure 1 is improved, and the stability and efficiency of its current transmission are guaranteed.

[0040] The shielding structure 2 includes an elastic sleeve 201, the material of the elastic sleeve 201 is a thermoplastic elastomer, the elastic sleeve 201 is located on the outer surface of multiple metal bodies 101, and the multiple metal bodies 101 are wrapped to form a whole power supply line harness, and the outer surface of the elastic sleeve 201 is provided with a shielding braided mesh 202, and the inner wall of the shielding braided mesh 202 is sealed and slidably connected with the outer surface of the elastic sleeve 201, and the shielding braided mesh 202 adjusts its own length according to the temperature of the internal wire core structure 1, thereby adjusting the shielding effect to meet the actual adaptive shielding requirements, the material of the shielding braided mesh 202 is copper wire, and the shielding The woven mesh 202 is a mesh structure. The shielding woven mesh 202 wraps the internal wire core structure 1, thereby achieving shielding against external electromagnetic waves. A grounding wire 203 is provided on one side of the shielding woven mesh 202. The grounding wire 203 is formed by peeling off the end of the shielding woven mesh 202. That is, in actual use, the shielding woven mesh 202 at one end needs to be grounded. Therefore, the shielding woven mesh 202 at the corresponding end is peeled off from the outer surface of the wire core structure 1 to form a grounding wire 203. The grounding wire 203 is connected to the ground wire to achieve electromagnetic shielding. This part is all existing technology and will not be elaborated here.

[0041] The adjustment structure 3 includes an end ring 301, the inner wall of the end ring 301 is slidably connected to the outer surface of the shielding braided mesh 202, the outer surface of the shielding braided mesh 202 is provided with a second protective sleeve 204, the material of the second protective sleeve 204 is silicone, the end ring 301 is fixedly connected to the side wall of the second protective sleeve 204 away from the grounding wire 203, the second protective sleeve 204 wraps and protects the internal shielding braided mesh 202, correspondingly improving the service life of the internal shielding braided mesh 202, and at the same time, the shielding braided mesh 202 can move between the second protective sleeve 204 and the elastic sleeve 201 and realize The shielding effect is adjusted by a function that a plurality of side grooves 302 are evenly provided on one side of the end ring 301 close to the grounding wire 203. The positions of the side grooves 302 correspond to the plurality of metal bodies 101. Therefore, in actual use, the adjustment structure 3 corresponding to the side grooves 302 adjusts the metal bodies 101 at the corresponding positions to meet the actual shielding requirements. Two blocks 303 are symmetrically provided at the inner wall end of the side groove 302. A plurality of heat exhaust holes 318 are evenly provided inside the block 303. The block 303 blocks the end of the side groove 302, and the heat exhaust holes 318 are used to quickly discharge the internal heat.

[0042] The side groove 302 is internally slidably connected with a sliding block 304, and two fixed blocks 306 are symmetrically arranged on the two side walls of the sliding block 304. The end of the fixed block 306 away from the sliding block 304 is sealed and slidably connected with the inner wall of the side groove 302. Therefore, the two fixed blocks 306 cooperate with the sliding block 304 to achieve a sealed and slidable connection inside the side groove 302, and an expansion cavity 3021 is formed between the end of the fixed block 306 away from the stopper 303 and the inner wall end of the side groove 302. Hot expansion gas flows inside the expansion cavity 3021. The expansion cavity 3021 is a sealed chamber. Therefore, when the heat generated by the metal body 101 at the corresponding position of the side groove 302 increases, the expansion cavity 3021 is heated. The volume of the heat-expanding gas inside the expansion chamber 21 increases accordingly under the action of thermal expansion and contraction. The sliding block 304 and the fixed block 306 are driven by the heat-expanding gas inside the expansion chamber 3021 to move toward the end close to the stopper 303. A heat dissipation chamber 3022 is formed between the end of the fixed block 306 close to the stopper 303 and the open end of the side groove 302. The heat dissipation chamber 3022 is used to dissipate the heat of the gas inside the side groove 302. Gas for heat dissipation circulates inside the heat dissipation chamber 3022. One end of the heat exhaust hole 318 is connected to the heat dissipation chamber 3022, and the other end of the heat exhaust hole 318 is connected to the outside world. Therefore, the gas inside the heat dissipation chamber 3022 can circulate along the heat exhaust hole 318.

[0043] The interior of the fixed block 306 is evenly provided with a plurality of through holes 307, and the interior of the through hole 307 is sealed and slidably connected with a blocking block 308, and the blocking block 308 is sealed and slidable inside the through hole 307. A top block 309 is provided on the side of the blocking block 308 away from the stopper 303, and the length of the top block 309 is greater than the length of the blocking block 308, and the height of the top block 309 is less than the height of the blocking block 308. A limit plate 321 is provided at the other end of the top block 309, and the top block 309 moves synchronously. The limit plate 321 is driven to move. A plurality of support springs 322 are evenly arranged on one side of the limit plate 321. The other end of the support spring 322 is fixedly connected to the side wall of the fixing block 306. The limit plate 321 is elastically reset by means of the elastic force of the support spring 322. Therefore, when the blocking block 308 moves along the through hole 307 toward the end of the stopper 303, the top block 309 is simultaneously driven to move. The top block 309 drives the limit plate 321 to move, and the top block 309 cannot move the through hole 307. The blocking block 308 is provided with a connecting rod 310 on one side close to the stopper 303, and the height and width of the connecting rod 310 are smaller than the height and width of the blocking block 308. When the blocking block 308 moves along the through hole 307 toward the end away from the stopper 303, the connecting rod 310 is simultaneously driven to move, and the connecting rod 310 cannot block the through hole 307. A sealing block 311 is provided on the other side of the connecting rod 310, and the area of ​​the sealing block 311 is larger than the diameter of the heat exhaust hole 318. When the sealing block 311 is When the sealing block 311 and the inner wall of the stopper 303 are squeezed and contacted with each other, the sealing block 311 blocks the heat exhaust hole 318, and the outer surface of the sealing block 311 is sealed and slidably connected with the inner wall of the through hole 307. A filter screen 319 is provided inside the heat exhaust hole 318, and a plurality of filter holes 320 are evenly arranged inside the filter screen 319. The gas flowing inside the heat exhaust hole 318 is filtered by means of the plurality of filter holes 320 inside the filter screen 319 to prevent external impurities from entering the heat dissipation cavity 3022 and causing pollution.

[0044] A transfer hole 305 is provided inside the sliding block 304, and a flow hole 312 is provided inside the fixed block 306. One end of the flow hole 312 is connected to the through hole 307, and the other end of the flow hole 312 is connected to the transfer hole 305. Therefore, the gas inside the flow hole 312 can flow inside the transfer hole 305 and the through hole 307. The blocking block 308 matches the flow hole 312, and the outer surface of the blocking block 308 is sealed and slidably connected to the inner wall of the through hole 307. The width value of the blocking block 308 is greater than the diameter value of the flow hole 312. Therefore, in the initial situation, the blocking block 308 blocks the flow hole 312, and when the blocking block 308 moves along the through hole 307, the blocking block 308 is detached from the blockage of the flow hole 312, and the gas inside the flow hole 312 can flow inside the through hole 307.

[0045] A plurality of connecting springs 313 are evenly arranged on one side of the fixed block 306 close to the stop block 303, and the other end of the connecting spring 313 is fixedly connected to the side wall of the stop block 303. The setting of the connecting spring 313 improves the elastic reset performance of the fixed block 306. The facing end surfaces of the stop block 303 are sealed and slidably connected to the side wall of the sliding block 304. A buckle 314 is arranged on one side of the sliding block 304 close to the shielding braided mesh 202, and the other end of the buckle 314 is mutually engaged with the outer surface of the shielding braided mesh 202. When the sliding block 304 moves, the sliding block 304 synchronously drives the shielding braided mesh 202 to move through the buckle 314.

[0046] A bottom groove 315 is provided on one side of the sliding block 304 close to the elastic sleeve 201, and the end of the transfer hole 305 away from the flow hole 312 is connected to the top of the bottom groove 315. The bottom groove 315 is provided at the end of the buckle 314 away from the stopper 303. A plurality of return springs 317 are evenly provided on the inner wall of the bottom groove 315, and a cutter 316 is provided on the other end of the return spring 317. The setting of the return spring 317 realizes the elastic return performance of the cutter 316. The outer surface of the cutter 316 is sealed and slidably connected with the inner wall of the bottom groove 315, and the other end of the cutter 316 is squeezed and contacted with the outer surface of the elastic sleeve 201. When the internal air pressure of the bottom groove 315 increases, the cutter 316 is driven to move along the bottom groove 315 toward the end close to the metal body 101, thereby realizing rapid cutting of the metal body 101 and preventing the metal body 101 from being continuously energized in a high temperature environment and causing a major safety accident.

[0047] The soft shielded power harness needs to ground the shielding layer in actual use to achieve the shielding function of electromagnetic waves. When the wire core structure 1 works for a long time or the external temperature changes, the copper wire inside the shielding braided mesh 202 will change due to its own thermal expansion and contraction. The change in the braiding density of the shielding braided mesh 202 will not only reduce the shielding effect of external electromagnetic waves, but also reduce the heat dissipation efficiency of the internal wire core structure 1, thereby reducing the working stability of the wire core structure 1. At the same time, the existing power harness lacks the elastic buffering effect against external forces, so that the power harness is prone to damage and bending when it is impacted. It also affects the mesh structure of the internal shielding braided mesh 202, and the shielding braided mesh 202 transmits the force to the end of the grounding wire 203, thereby causing the grounding wire 203 to separate from the ground wire, ultimately reducing the shielding effect on external electromagnetic waves; and when the wire core structure 1 is short-circuited or the external temperature is too high, if the wire core structure 1 cannot be disconnected in time, it will cause the wire core structure 1 to catch fire and cause a major safety accident; but when the external temperature is too low, the weaving density of the shielding braided mesh 202 is too large, which will cause the shielding braided mesh 202 to be over-woven, further reducing the shielding effect of the shielding braided mesh 202.

[0048] In order to solve the above problems, when the soft shielded power harness is actually used, the core structure 1, shielding structure 2 and adjustment structure 3 are first installed as required, and the core structure 1 is electrically connected to each electrical component. Then, part of the shielding braided mesh 202 at the end of the end ring 301 is peeled off from the core structure 1 to form a grounding wire 203, and the grounding wire 203 is connected to the ground wire to form the required grounding connection, thereby achieving a shielding effect on the internal core structure 1.

[0049] At the same time, in the initial situation, the first protective cover 103 wraps and protects the internal metal body 101, and the second protective cover 204 wraps and protects the internal shielding braided mesh 202. There is some gas inside the bottom groove 315. Under the action of the gas, the cutter 316 is driven to stretch multiple reset springs 317 to move toward the end of the elastic cover 201. The end of the cutter 316 and the outer surface of the elastic cover 201 are squeezed and contacted with each other, so as to ensure that when the shielding braided mesh 202 slides on the outer surface of the elastic cover 201, the cutter 316 can scrape and clean the outer surface of the elastic cover 201 in advance, so as to ensure the cleanliness of the elastic cover 201 and the stability of the shielding of the shielding braided mesh 202, and the blocking block 308 is inside the through hole 307 and blocks the flow hole 312, so that the hot expansion gas inside the expansion cavity 3021 cannot enter the flow hole 312 along the through hole 307 to circulate.

[0050] When the soft shielded power harness is subjected to external force, the force acts on the end ring 301 through the second protective cover 204, and the end ring 301 moves at this time. With the elastic force of multiple connecting springs 313, the sliding block 304 inside the side groove 302 does not move due to the elastic force. The sliding block 304 ensures that the end of the shielding braided mesh 202 does not move through the buckle 314. With the mesh structure of the shielding braided mesh 202 itself, the shielding braided mesh 202 can be elastically deformed with the movement of the soft shielded power harness, thereby ensuring the softness and deformability of the soft shielded power harness, and the shielding braided mesh 202 will not exert a pulling force on the grounding wire 203 and cause it to separate from the grounding wire, thereby ensuring the connection stability between the shielding braided mesh 202 and the grounding wire 203, and improving the stable shielding effect of the shielding braided mesh 202 on the internal core structure 1.

[0051] Then, as the wire core structure 1 continues to work, if the current flowing through a certain metal body 101 increases or the external temperature rises, the shielding braided mesh 202 itself increases in volume due to thermal expansion and contraction, and the braiding density of the shielding braided mesh 202 increases, which will not only reduce the heat dissipation efficiency, but also affect the shielding effect of the internal wire core structure 1. The temperature value inside the end ring 301 increases accordingly, and the temperature value of the thermal expansion gas inside the expansion cavity 3021 increases. The thermal expansion gas increases in volume due to the principle of its own thermal expansion and contraction, and the expansion gas has an impact on the sliding Block 304 and fixed block 306 apply thrust, sliding block 304 and fixed block 306 squeeze connecting spring 313 and move toward the end close to stop block 303, gas inside heat dissipation cavity 3022 is discharged along heat exhaust hole 318, and the gas is filtered and recovered through filter hole 320 to ensure the cleanliness of gas flow, and at the same time, the continuous circulation of gas inside heat dissipation cavity 3022 further improves the heat exchange stability of hot expansion gas inside expansion cavity 3021, and ensures the accuracy of detection of hot expansion gas inside expansion cavity 3021 to wire core structure 1 and external temperature.

[0052] When the sliding block 304 moves, it also drives the buckle 314 to move, and the buckle 314 drives the shielding braided mesh 202 to move. The shielding braided mesh 202 is stretched to increase its length, and the corresponding weaving density of the shielding braided mesh 202 is reduced, further improving the heat dissipation efficiency and shielding effect of the shielding braided mesh 202, ensuring that the core structure 1 is efficiently energized at temperature, and when the sliding block 304 moves, it also drives the cutter 316 inside the bottom groove 315 to move synchronously, and the cutter 316 contacts and pre-scrapes the outer surface of the elastic sleeve 201, ensuring that when the end of the shielding braided mesh 202 moves and the weaving seal changes, there are no impurities between the shielding braided mesh 202 and the elastic sleeve 201, thereby improving the stability and cleanliness of the shielding braided mesh 202.

[0053] However, when a short circuit occurs in the core structure 1 or the temperature continues to rise to a maximum value, the core structure 1 is at risk of self-ignition, and the temperature of the hot expansion gas inside the expansion chamber 3021 continues to rise and the volume continues to increase to a maximum value, and the expansion gas continuously drives the sliding block 304 and the fixed block 306 to squeeze the multiple connecting springs 313 to move to the maximum value near the end of the block 303, and the sealing block 311 and the inner wall of the block 303 are squeezed and contacted with each other, and the sealing block 311 blocks the heat exhaust hole 318, so that the high-temperature gas inside the heat dissipation cavity 3022 cannot be discharged along the heat exhaust hole 318, and the sealing Block 311 drives the blocking block 308 and the top block 309 to move away from the end of the block 303 through the connecting rod 310, and the top block 309 drives the limit plate 321 to stretch the support spring 322 to move away from the end of the block 303. When the blocking block 308 continues to move along the through hole 307 to the end away from the block 303 and separates from the through hole 307, since the height and width values ​​of the connecting rod 310 are smaller than the height and width values ​​of the blocking block 308, the hot expansion gas inside the expansion chamber 3021 can quickly enter the through hole 307 along the outer surface of the connecting rod 310 for circulation.

[0054] At this time, since the sealing block 311 is blocked inside the through hole 307, the hot expanded gas inside the through hole 307 can only enter the flow hole 312, and continue to enter the bottom groove 315 through the transfer hole 305 along the flow hole 312. At this time, due to the increase in the amount of hot expanded gas inside the bottom groove 315, the pressure inside the bottom groove 315 increases and drives the cutter 316 to stretch multiple reset springs 317 to move toward the end close to the elastic sleeve 201. The cutter 316 keeps moving and cuts the elastic sleeve 201, the first protective sleeve 103, the insulating sleeve 102 and the metal body 101 respectively, and the metal body 101 is short-circuited under the cutting action, thereby quickly cutting off the power to the soft shielded power harness, avoiding major accidents such as spontaneous combustion caused by excessive external temperature or short-circuiting of the metal body 101, effectively improving the safety and stability of the soft shielded power harness, and achieving faster adaptive circuit breaking efficiency and higher safety factor.

[0055] At the same time, when the current flowing through the core structure 1 decreases or the external temperature decreases, the hot expanding gas inside the expansion chamber 3021 contracts due to the drop in temperature due to the principle of its own thermal expansion and contraction, and the thrust of the expansion chamber 3021 on the sliding block 304 and the fixed block 306 is reduced. Under the elastic force of the connecting spring 313, the sliding block 304 and the fixed block 306 are driven to move away from the end of the block 303, and the volume of the heat dissipation chamber 3022 increases and the pressure decreases. After being filtered by the filter hole 320, the external gas enters the heat dissipation chamber 3022 along the heat exhaust hole 318 for temporary storage. The sliding block 304 drives the end of the shielding braided mesh 202 to move in the opposite direction through the buckle 314, and the weaving density of the shielding braided mesh 202 is increased. On the basis of ensuring the shielding property of the shielding braided mesh 202, the heat dissipation efficiency of the core structure 1 is reduced, and the temperature of the core structure 1 is always at a stable value.

[0056] As the outside temperature continues to drop to a minimum value, the volume of the hot expanded gas in the expansion chamber 3021 continues to drop and reaches a minimum value, and the thrust exerted by the hot expanded gas on the sliding block 304 and the fixed block 306 continues to decrease. Under the elastic force of multiple connecting springs 313, the sliding block 304 and the fixed block 306 are driven to move away from the end of the block 303, and the fixed block 306 simultaneously drives the internal blocking block 308 to move, and the blocking block 308 drives the top block 309 and the limit plate 321 at the end to move. When the limit plate 321 and the inner wall of the side groove 302 are squeezed and contacted with each other, the limit plate 321 squeezes the supporting spring 322 and drives the top block 309 to move close to the block 303 end, and the top block 309 drives the blocking block 308 to move along the through hole 307 to the end close to the block 303 end. 08 The blockage area of ​​the flow hole 312 is reduced, and the multiple return springs 317 inside the bottom groove 315 drive the cutter 316 to move away from the elastic sleeve 201 end under the action of elastic force. The hot expansion gas inside the bottom groove 315 is squeezed and enters the flow hole 312 through the transfer hole 305. The hot expansion gas inside the flow hole 312 finally enters the expansion chamber 3021 along the through hole 307 for storage. The amount of hot expansion gas inside the expansion chamber 3021 increases, thereby effectively preventing the sliding block 304 and the fixed block 306 from continuing to move toward the end of the stopper 303, and at the same time avoiding the sliding block 304 from driving the shielding braided mesh 202 to over-weave on the outer surface of the elastic sleeve 201 through the buckle 314, thereby effectively ensuring the shielding effect of the shielding braided mesh 202, with higher safety and better protection.

[0057] When the outside temperature rises again, the hot expanded gas inside the expansion chamber 3021 enters the flow hole 312 along the through hole 307 again, and the hot expanded gas inside the flow hole 312 flows back to the bottom groove 315 through the transfer hole 305. The amount of hot expanded gas inside the bottom groove 315 continues to increase and the thrust exerted on the cutter 316 increases. The cutter 316 re-stretches the multiple return springs 317 and squeezes and contacts the outer surface of the elastic sleeve 201. After that, the volume of the hot expanded gas inside the expansion chamber 3021 continues to increase, driving the sliding block 304 and the fixed block 306 to squeeze the multiple connecting The spring 313 moves toward the end close to the block 303, and the limit plate 321 breaks away from the contact with the inner wall of the expansion chamber 3021. Under the elastic force of the supporting spring 322, the limit plate 321 moves in the opposite direction to return to its original position. The limit plate 321 drives the top block 309 to move toward the end away from the block 303. The top block 309 drives the blocking block 308 to move inside the through hole 307 and re-blocks the flow hole 312. The hot expansion gas inside the expansion chamber 3021 cannot flow into the flow hole 312 along the through hole 307, and each structure resumes its normal working state and repeats the above working process.

[0058] The soft shielded power harness has high power-on efficiency, strong power-on stability, and good flexibility, can meet the needs of different working environments, has strong shielding performance for external electromagnetic waves, and ensures that the internal core structure 1 works continuously and stably; at the same time, when the power-on current of the core structure 1 or the temperature of the external environment changes, the sliding block 304 moves synchronously inside the side groove 302 and drives the shielding braided mesh 202 to move through the buckle 314, thereby ensuring that the heat dissipation performance and shielding performance of the shielding braided mesh 202 are continuously stable, with stronger adaptability and higher stability; and when the core structure 1 is short-circuited or the temperature of the external environment is too high, the cutter 316 moves along the bottom groove 315 and cuts off the core structure 1, thereby achieving rapid power off, avoiding major accidents such as spontaneous combustion, with higher safety and stronger self-protection function; and when the external temperature is too low, the sliding block 304 moves synchronously in the opposite direction and ensures that the braiding density of the shielding braided mesh 202 meets the requirements, thereby avoiding over-braiding and other situations that affect the normal power-on of the core structure 1.

[0059] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0060] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A soft shielded power harness, comprising a wire core structure (1), a shielding structure (2) being provided on the outer surface of the wire core structure (1), and an adjustment structure (3) being provided at one end of the shielding structure (2), characterized in that: The wire core structure (1) comprises a plurality of metal bodies (101); The shielding structure (2) comprises an elastic sleeve (201), the outer surface of the elastic sleeve (201) is provided with a shielding braided mesh (202), and one side of the shielding braided mesh (202) is provided with a grounding wire (203); The regulating structure (3) comprises an end ring (301), a side of the end ring (301) close to the grounding wire (203) is evenly provided with a plurality of side grooves (302), the inner wall end of the side groove (302) is symmetrically provided with two stoppers (303), the inside of the stoppers (303) is evenly provided with a plurality of heat exhaust holes (318), the inside of the side groove (302) is slidably connected with a sliding block (304), the inside of the sliding block (304) is provided with a transfer hole (305), two side walls of the sliding block (304) are symmetrically provided with two fixed blocks (306), the inside of the fixed blocks (306) is evenly provided with a plurality of through holes (307), the inside of the through holes (307) is sealingly slidably connected with a blocking block (308), and the inside of the fixed blocks (306) is provided with a flow hole (312).

2. The flexible shielded power harness according to claim 1, characterized in that: The material of the metal body (101) is copper wire, an insulating sleeve (102) is provided on the outer surface of the metal body (101), the material of the insulating sleeve (102) is polyvinyl chloride, a first protective sleeve (103) is provided on the outer surface of the insulating sleeve (102), the material of the first protective sleeve (103) is rubber, the inner wall of the elastic sleeve (201) is in contact with the outer surface of the first protective sleeve (103), a filling layer (104) is formed between the elastic sleeve (201) and the first protective sleeve (103), a supporting layer (105) is provided between the plurality of first protective sleeves (103), and the materials of the filling layer (104) and the supporting layer (105) are both polypropylene tear film strips.

3. The flexible shielded power harness according to claim 1, characterized in that: The shielding braided mesh (202) is made of copper wire and has a mesh structure. The grounding wire (203) is formed by peeling off the end of the shielding braided mesh (202). The inner wall of the shielding braided mesh (202) is sealed and slidably connected to the outer surface of the elastic sleeve (201). The inner wall of the end ring (301) is slidably connected to the outer surface of the shielding braided mesh (202). The elastic sleeve (201) is made of thermoplastic elastomer. The outer surface of the shielding braided mesh (202) is provided with a second protective sleeve (204). The second protective sleeve (204) is made of silicone. The end ring (301) is fixedly connected to the side wall of the second protective sleeve (204) on the side away from the grounding wire (203).

4. The flexible shielded power harness according to claim 1, characterized in that: An expansion cavity (3021) is formed between the end of the fixed block (306) away from the stopper (303) and the inner wall end of the side groove (302), and heat expansion gas flows inside the expansion cavity (3021). A heat dissipation cavity (3022) is formed between the end of the fixed block (306) close to the stopper (303) and the open end of the side groove (302), and heat dissipation gas flows inside the heat dissipation cavity (3022). One end of the heat exhaust hole (318) is connected to the heat exhaust cavity (3022), and the other end of the heat exhaust hole (318) is connected to the outside.

5. The flexible shielded power harness according to claim 1, characterized in that: The position of the side groove (302) corresponds to the multiple metal bodies (101); a top block (309) is provided on the side of the blocking block (308) away from the blocking block (303); a limiting plate (321) is provided on the other end of the top block (309); a plurality of supporting springs (322) are evenly provided on one side of the limiting plate (321); the other end of the supporting spring (322) is fixedly connected to the side wall of the fixing block (306); a connecting rod (310) is provided on the side of the blocking block (308) close to the blocking block (303); a sealing block (311) is provided on the other side of the connecting rod (310).

6. The flexible shielded power harness according to claim 5, characterized in that: The area value of the sealing block (311) is greater than the diameter value of the heat exhaust hole (318); the outer surface of the sealing block (311) is sealingly and slidably connected to the inner wall of the through hole (307); the height values ​​of the top block (309) and the connecting rod (310) are both smaller than the height value of the through hole (307); the height value and width value of the connecting rod (310) are both smaller than the height value and width value of the blocking block (308); a filter screen (319) is provided inside the heat exhaust hole (318); and a plurality of filter holes (320) are evenly provided inside the filter screen (319).

7. The flexible shielded power harness according to claim 5, characterized in that: The length of the top block (309) is greater than the length of the blocking block (308), and the height of the top block (309) is less than the height of the blocking block (308); one end of the fixed block (306) away from the sliding block (304) is sealingly slidably connected to the inner wall of the side groove (302); the blocking block (308) matches the flow hole (312), and the outer surface of the blocking block (308) is sealingly slidably connected to the inner wall of the through hole (307); one end of the flow hole (312) is connected to the through hole (307), and the other end of the flow hole (312) is connected to the transfer hole (305).

8. The flexible shielded power harness according to claim 1, characterized in that: A plurality of connection springs (313) are evenly arranged on one side of the fixed block (306) close to the stop block (303); the other end of the connection spring (313) is fixedly connected to the side wall of the stop block (303); the facing end surfaces of the stop block (303) are sealingly slidably connected to the side wall of the sliding block (304); a buckle (314) is arranged on one side of the sliding block (304) close to the shielding braided mesh (202); the other end of the buckle (314) is mutually buckled with the outer surface of the shielding braided mesh (202).

9. The flexible shielded power harness according to claim 8, characterized in that: A bottom groove (315) is provided on one side of the sliding block (304) close to the elastic sleeve (201); one end of the transfer hole (305) away from the flow hole (312) is connected to the top of the bottom groove (315); the bottom groove (315) is provided at the end of the buckle (314) away from the stopper (303); a plurality of return springs (317) are evenly provided on the inner wall of the bottom groove (315); a cutter (316) is provided at the other end of the return spring (317); an outer surface of the cutter (316) is sealingly and slidably connected to the inner wall of the bottom groove (315); and the other end of the cutter (316) is in mutual compression contact with the outer surface of the elastic sleeve (201).

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