Energy storage wire

Abstract

The utility model discloses an energy storage wire, and relates to the technical field of energy storage wires, the energy storage wire comprises an insulating layer and a conductor, the wire is subjected to heat dissipation operation through a heat dissipation mechanism, the heat dissipation mechanism comprises a fireproof layer, the fireproof layer is arranged on the inner wall of the insulating layer, and a waterproof layer is arranged in the inner cavity of the fireproof layer; a docking mechanism; and a fixing mechanism. According to the utility model, through the arrangement of the heat dissipation mechanism, the heat dissipation liquid circularly flows to take away the generated heat when the electric wire works, the temperature rise of the electric wire is reduced, the heat dissipation performance and the current-carrying capacity are improved, and under the condition of the same current-carrying capacity, a smaller electric wire can be selected to reduce the cost and the weight of the electric wire; the safety of the wire is ensured through waterproof of the waterproof layer and heat insulation and fire resistance of the fireproof layer; the high and low temperature impact resistance of the wire is improved through the insulating layer, so that the high temperature resistance, the low temperature resistance, the fire resistance and the safety of the energy storage wire are effectively improved, the self safety of the product is improved, and the harm of the product to people is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage electric wires, in particular to an energy storage electric wire. Background Art

[0002] With the development of human science and technology, energy transformation and the promotion and application of renewable energy, the research and development and application prospects of energy storage technology are becoming more and more broad. Renewable energy integration: Energy storage technology can solve the problems of volatility and intermittency of renewable energy, for example, converting solar energy and wind energy into electrical energy and storing it for use at night or when there is no wind; Power system regulation: Energy storage technology can provide short-term high-power output when needed to regulate the frequency and voltage stability of the power system. It can balance the difference between supply and demand and provide backup power to cope with emergencies; Energy storage vehicles: Batteries in electric vehicles can be used as mobile energy storage devices. These batteries can receive and store electrical energy through on-board charging facilities and release it when needed to supply vehicle power or provide other purposes; Home and commercial applications: Energy storage technology can be used in home and commercial environments for peak and valley electricity price utilization, backup power supply and emergency power supply. It can help reduce energy consumption that relies on traditional power grids and improve energy utilization efficiency; Power market participation: Energy storage technology can participate in the dispatching and operation of the power market, such as achieving economic benefits by participating in energy trading and providing services such as frequency regulation. These are just some of the application areas of energy storage technology. With the continuous advancement of technology and the expansion of applications, energy storage technology will play a role in more fields and promote the sustainable development of energy.

[0003] At present, energy storage cable connecting wires on the market are bare copper wire conductors twisted and then extruded with insulation. Among them, the insulation used for connecting wires is PVC, TPE, chloroprene rubber, and XLPE. The working temperature of the above materials is between -15℃ and 90℃. The wire design structure is single, the heat dissipation is poor, the overload current is small, and the cost is high. The insulation materials: PVC, TPE, chloroprene rubber, PE materials have poor overload resistance, poor flame retardancy, poor weather resistance, and contain halogens; this wire can no longer meet the high voltage, high conductivity, and high temperature resistance required by this type of energy storage system, affecting the service life of the energy storage system. In severe cases, it will cause short circuits, fires, and battery explosions that endanger personal safety and energy storage market promotion. Therefore, it is necessary to develop an energy storage wire with good heat dissipation, large overcurrent, low cost, good fire resistance, good high temperature resistance, and high safety. Utility Model Content

[0004] The purpose of the utility model is to provide an energy storage wire to solve the problems that cables with the same cross-section have small current carrying capacity and poor heat dissipation; the existing wires have no water-blocking and fire-proof and water-blocking properties to provide safety and weather resistance for the energy storage system; the existing wires are high in cost and heavy in weight; the wires are resistant to high and low temperature shocks; and the wires are resistant to high voltage difference shocks.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an energy storage wire, comprising an insulating layer and a conductor, the wire performs heat dissipation operation through a heat dissipation mechanism, the heat dissipation mechanism comprises a fireproof layer, the fireproof layer is arranged on the inner wall of the insulating layer, the inner cavity of the fireproof layer is provided with a water-blocking layer, the conductor is located between the fireproof layer and the water-blocking layer, the inner cavity of the water-blocking layer is symmetrically provided with a liquid inlet pipe and a liquid outlet pipe, a connecting groove is arranged at one end of the inner cavity of the water-blocking layer between the liquid inlet pipe and the liquid outlet pipe, the liquid inlet pipe and the liquid outlet pipe are connected through the connecting groove; multiple wires are docked by a docking mechanism;

[0006] The docking mechanism includes a connecting seat, which is located at one end of the insulating layer. Both ends of the connecting seat are provided with mounting grooves. The inner cavity of the mounting groove is fixedly connected with an annular block, and a connecting plate is fixedly connected between the two annular blocks. A docking pipe is installed inside the connecting seat, and one end of the docking pipe extends into the inner cavity of one of the mounting grooves. A water inlet groove and a water outlet groove are provided inside the docking pipe; the insulating layer is fixed in the mounting groove by a fixing mechanism.

[0007] As a further solution of the utility model: the fixing mechanism includes an elastic sheet, which is fixedly connected to the inner wall of the installation groove and located on the outer side of the docking tube; the connecting seat is internally slidably connected with a clamping block extending into the inner cavity of the installation groove; a spring is connected between the clamping block and the connecting seat; the connecting seat is internally slidably connected with a push rod passing through the clamping block; the push rod is moved to push the clamping block to move, and the two clamping blocks move close to each other to clamp the insulating layer.

[0008] As a further solution of the utility model: the fixing mechanism also includes a connecting frame, the connecting frame is fixedly connected to one end of the push rod away from the clamping block, the connecting frame extends out of the connecting seat, the top of the connecting frame is provided with a through hole, the top of the connecting seat is provided with a threaded hole, the inner wall of the threaded hole is connected with a bolt, the outer wall of the clamping block is provided with a sliding groove, the sliding groove is for the push rod to slide, the outer ring of the elastic sheet is provided with an extrusion ring, and the extrusion ring is fixedly connected to the push rod.

[0009] As a further solution of the utility model: one end of the clamping block is provided with an arc surface, and the inner wall of the sliding groove is in contact with the outer wall of the push rod.

[0010] As a further solution of the utility model: one end of the push rod is provided with an inclined surface, and the inclined surface is in contact with the clamping block.

[0011] As a further solution of the utility model: the shape of the connecting frame is C-shaped, and the inner wall of the through hole fits with the outer wall of the bolt.

[0012] As a further solution of the utility model: the thread of the threaded hole matches the bolt.

[0013] As a further solution of the utility model: the inner wall of the water-blocking layer is in contact with the outer wall of the butt-jointed tube, and a plurality of elastic sheets are provided.

[0014] As a further solution of the utility model: a plurality of elastic sheets are circumferentially distributed on the outer ring of the butt joint pipe, and the elastic sheets are distributed in a conical shape.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. By setting up a heat dissipation mechanism, the heat generated by the wires is taken away by the circulation of the heat dissipation liquid during operation, which reduces the temperature rise of the wires, improves the heat dissipation and current carrying capacity. Under the same current carrying capacity, smaller wires can be selected to reduce costs and the weight of the wires themselves; the water-blocking layer is waterproof, and the fireproof layer is heat-insulating and fire-blocking to ensure the safety of the wires; the insulation layer improves the high and low temperature impact resistance of the wires. The above content effectively improves the high temperature resistance, low temperature resistance, fire resistance, and safety of this type of energy storage wires, improves the safety of the product itself, and reduces the harm of the product to people;

[0017] 2. By setting a docking mechanism and a fixing mechanism, when lengthening the wires, it is necessary to dock the two wires, and the two wires are docked through the connecting seat, and the two wires are inserted into the installation groove, and the conductors are in contact with the annular block. At this time, the conductors in the two wires are connected through the annular block and the connecting plate, and the connecting frame is pushed to move to drive the two clamping blocks to move closer to each other, so that one end of the wire is fixed in the installation groove, and at the same time, the push rod moves to drive the extrusion ring to move, and the extrusion ring moves and contacts with the elastic sheet, and the extrusion ring pushes multiple elastic sheets to deform and contact with the water-blocking layer, and presses the water-blocking layer against the outer wall of the butt-joint tube, so as to perform a sealing operation between the water-blocking layer and the butt-joint tube, so as to facilitate the automatic sealing operation between the water-blocking layer and the butt-joint tube when the wires are fixed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 It is a cross-sectional view of the liquid inlet pipe and the liquid outlet pipe of the utility model;

[0020] Figure 3 It is a structural schematic diagram of the connecting seat of the utility model;

[0021] Figure 4 It is a cross-sectional view of the connecting seat of the utility model;

[0022] Figure 5 It is a structural schematic diagram of the butt joint pipe of the utility model;

[0023] Figure 6 This is a schematic diagram of the installation of the clamping block of the utility model;

[0024] Figure 7 It is a schematic structural diagram of the elastic sheet of the utility model.

[0025] In the figure: 1. insulating layer; 2. conductor; 3. heat dissipation mechanism; 301. fireproof layer; 302. water-blocking layer; 303. liquid inlet pipe; 304. liquid outlet pipe; 305. connecting groove; 4. docking mechanism; 401. connecting seat; 402. mounting groove; 403. annular block; 404. connecting plate; 405. docking pipe; 406. water inlet groove; 407. water outlet groove; 5. fixing mechanism; 501. elastic sheet; 502. clamping block; 503. spring; 504. push rod; 505. connecting frame; 506. through hole; 507. threaded hole; 508. bolt; 509. slide groove; 510. extrusion ring. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-Figure 7 In an embodiment of the utility model, an energy storage wire comprises an insulating layer 1 and a conductor 2. The wire performs heat dissipation operation through a heat dissipation mechanism 3. The heat dissipation mechanism 3 comprises a fireproof layer 301. The fireproof layer 301 is arranged on the inner wall of the insulating layer 1. The inner cavity of the fireproof layer 301 is provided with a water-blocking layer 302. The conductor 2 is located between the fireproof layer 301 and the water-blocking layer 302. The inner cavity of the water-blocking layer 302 is symmetrically provided with a liquid inlet pipe 303 and a liquid outlet pipe 304. A connecting groove 305 is arranged at one end of the inner cavity of the water-blocking layer 302 between the liquid inlet pipe 303 and the liquid outlet pipe 304. The liquid inlet pipe 303 and the liquid outlet pipe 304 are connected through the connecting groove 305. A plurality of wires are docked through a docking mechanism 4.

[0028] In this embodiment: the diameter of the liquid inlet pipe 303 and the liquid outlet pipe 304 is not less than 6 mm, and the heat dissipation liquid circulates in and out to take away the heat generated when the current passes through the wire, thereby reducing the temperature rise effect of the wire. Under the condition of the same cross-section, the heat dissipation is more than twice the original, and the current carrying capacity is twice that of the original ordinary structure to provide conductivity;

[0029] The water-blocking layer 302 has an overlap rate of not less than 30%. The water-blocking layer 302 prevents the heat dissipation liquid from contacting the conductor 2 to cause a short circuit, thereby improving the safety of the wire.

[0030] Conductor 2: The cable uses 6th type bare copper wire as the conductor material of 50mm2. It is first bundled and then re-twisted in a regular structure of 19 strands. During the re-twisting, the cabling machine is equipped with a back-twisting device to eliminate the stress caused by the re-twisting, making the wire more round and soft and easy to follow;

[0031] Fireproof layer 301: The overlapping rate is not less than 30%. Fireproof layer 301 can prevent the external environment from being insulated and fire-blocked in the event of a fire. The fireproof layer 301 can insulate and block fire, and the wires can continue to work for the energy storage system.

[0032] The material of the insulation layer 1 is a special XLPO with a hardness of no more than 85A and a rated temperature of -40 to 125°C. The semi-extruded insulation layer 1 wraps the conductor 2, leaving a certain space for the internal copper wire. The thickness of the insulation layer 1 is set according to the voltage (no less than 1.5mm). The insulation layer 1 withstands voltage, and the wire can withstand low temperatures of -40°C and high temperatures of 125°C, which improves the safety of the wire.

[0033] When the wire is working, the heat generated is removed by circulating the cooling liquid, which reduces the temperature rise of the wire, improves the heat dissipation and current carrying capacity. Under the same current carrying capacity, a smaller wire can be selected to reduce the cost and the weight of the wire itself.

[0034] The water-blocking layer 302 is waterproof, and the fire-proof layer 301 is heat-insulating and fire-proof to ensure the safety of the wires.

[0035] The insulation layer 1 improves the high and low temperature impact resistance of the wire.

[0036] The above content effectively improves the high temperature resistance, low temperature resistance, fire resistance and safety of this type of energy storage wires, improves the safety of the product itself and reduces the harm of the product to people.

[0037] Please refer to Figure 3-Figure 5The docking mechanism 4 includes a connecting seat 401, which is located at one end of the insulating layer 1. Both ends of the connecting seat 401 are provided with mounting grooves 402. The inner cavity of the mounting groove 402 is fixedly connected with an annular block 403. A connecting plate 404 is fixedly connected between the two annular blocks 403. A docking pipe 405 is installed inside the connecting seat 401. One end of the docking pipe 405 extends into the inner cavity of a mounting groove 402. A water inlet groove 406 and a water outlet groove 407 are provided inside the docking pipe 405. The insulating layer 1 is fixed in the mounting groove 402 by the fixing mechanism 5.

[0038] In this embodiment: when two wires are butt-jointed, one end of the conductor 2 is extended out of the insulating layer 1 and bent on the outer wall of the insulating layer 1, and the wires at the open ends of the liquid inlet pipe 303 and the liquid outlet pipe 304 are inserted into the installation groove 402. At this time, the butt-joint pipe 405 enters the water-blocking layer 302 until the liquid outlet pipe 304 is aligned with the water outlet groove 407, the liquid inlet pipe 303 is aligned with the water inlet groove 406, and the water inlet groove 406 and the water outlet groove 407 are both connected to the external heat dissipation liquid storage device; the other end of the insulating layer 1 is inserted into another installation groove 402, and the conductor 2 is in contact with the annular block 403. At this time, the conductors 2 in the two wires are connected through the annular block 403 and the connecting plate 404. It is worth noting that the annular block 403 and the connecting plate 404 are both conductive materials.

[0039] Please refer to Figure 4-Figure 7 The fixing mechanism 5 includes an elastic sheet 501, which is fixedly connected to the inner wall of the installation groove 402 and is located on the outer side of the butt joint 405. The inner part of the connecting seat 401 is slidably connected to a clamping block 502 extending into the inner cavity of the installation groove 402. A spring 503 is connected between the clamping block 502 and the connecting seat 401. The inner part of the connecting seat 401 is slidably connected to a push rod 504 that passes through the clamping block 502. The push rod 504 moves to push the clamping block 502 to move. The two clamping blocks 502 move close to each other to clamp the insulating layer 1, and the fixing The mechanism 5 also includes a connecting frame 505, which is fixedly connected to one end of the push rod 504 away from the clamping block 502. The connecting frame 505 extends out of the connecting seat 401. A through hole 506 is provided at the top of the connecting frame 505. A threaded hole 507 is provided at the top of the connecting seat 401. A bolt 508 is connected to the inner wall of the threaded hole 507. A sliding groove 509 is provided on the outer wall of the clamping block 502. The sliding groove 509 allows the push rod 504 to slide. An extrusion ring 510 is provided on the outer ring of the elastic sheet 501. The extrusion ring 510 is fixedly connected to the push rod 504.

[0040] In this embodiment: when the insulating layer 1 is inserted into the installation groove 402, the water-blocking layer 302 is sleeved on the outer wall of the butt-jointed tube 405. After completion, the connecting frame 505 is pushed to move, and the movement of the connecting frame 505 drives the push rod 504 to move, and the movement of the push rod 504 drives the clamping block 502 to move, and the movement of the clamping block 502 causes the spring 503 to be stretched, and the two clamping blocks 502 move close to each other and contact the insulating layer 1, clamping and fixing the insulating layer 1, thereby fixing one end of the wire in the installation groove 402; at this time, the through hole 506 moves to the top of the threaded hole 507, and the bolt 508 is passed through the through hole 506 and installed into the threaded hole 507, thereby fixing and connecting the connecting frame 505;

[0041] When the push rod 504 moves, the push rod 504 drives the extrusion ring 510 to move, and the extrusion ring 510 moves and contacts the elastic sheet 501. The extrusion ring 510 pushes the multiple elastic sheets 501 to deform and contact the water blocking layer 302, and presses the water blocking layer 302 against the outer wall of the docking tube 405, thereby performing a sealing operation between the water blocking layer 302 and the docking tube 405.

[0042] Please refer to Figure 6 and Figure 7 One end of the clamping block 502 is provided with an arc surface, the inner wall of the slide groove 509 is in contact with the outer wall of the push rod 504 , and one end of the push rod 504 is provided with an inclined surface, which contacts the clamping block 502 .

[0043] In this embodiment: when the insulating layer 1 is inserted into the installation groove 402, the water-blocking layer 302 is sleeved on the outer wall of the docking tube 405. After completion, the connecting frame 505 is pushed to move, and the movement of the connecting frame 505 drives the push rod 504 to move, and the movement of the push rod 504 drives the clamping block 502 to move. The movement of the clamping block 502 stretches the spring 503, and the two clamping blocks 502 move close to each other and contact the insulating layer 1, clamping and fixing the insulating layer 1, thereby fixing one end of the wire in the installation groove 402.

[0044] Please refer to Figure 4 and Figure 6 The shape of the connecting frame 505 is C-shaped, the inner wall of the through hole 506 fits with the outer wall of the bolt 508, and the thread of the threaded hole 507 matches with the bolt 508.

[0045] In this embodiment: at this time, the through hole 506 is moved to the top of the threaded hole 507, and the bolt 508 is passed through the through hole 506 and installed into the threaded hole 507, so as to fix the connecting frame 505.

[0046] Please refer to Figure 7The inner wall of the water-blocking layer 302 is in contact with the outer wall of the butt joint 405 , and a plurality of elastic sheets 501 are provided. The plurality of elastic sheets 501 are circumferentially distributed on the outer circle of the butt joint 405 , and the elastic sheets 501 are distributed in a conical shape.

[0047] In this embodiment: when the push rod 504 moves, the push rod 504 drives the extrusion ring 510 to move, and the extrusion ring 510 moves to contact the elastic sheet 501. The extrusion ring 510 pushes the multiple elastic sheets 501 to deform and contact the water blocking layer 302, and presses the water blocking layer 302 against the outer wall of the docking tube 405, thereby performing a sealing operation between the water blocking layer 302 and the docking tube 405.

[0048] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An energy storage wire, comprising an insulating layer (1) and a conductor (2), characterized in that: The electric wires are cooled by a heat dissipation mechanism (3). The heat dissipation mechanism (3) comprises a fireproof layer (301). The fireproof layer (301) is arranged on the inner wall of the insulating layer (1). The inner cavity of the fireproof layer (301) is provided with a water-blocking layer (302). The conductor (2) is located between the fireproof layer (301) and the water-blocking layer (302). The inner cavity of the water-blocking layer (302) is symmetrically provided with a liquid inlet pipe (303) and a liquid outlet pipe (304). A connecting groove (305) is provided at one end of the inner cavity of the water-blocking layer (302) between the liquid inlet pipe (303) and the liquid outlet pipe (304). The liquid inlet pipe (303) and the liquid outlet pipe (304) are connected via the connecting groove (305). A plurality of electric wires are docked with each other by a docking mechanism (4). The docking mechanism (4) comprises a connection seat (401), the connection seat (401) being located at one end of the insulating layer (1), both ends of the connection seat (401) being provided with mounting grooves (402), the inner cavity of the mounting groove (402) being fixedly connected with an annular block (403), a connection plate (404) being fixedly connected between two annular blocks (403), a docking pipe (405) being installed inside the connection seat (401), one end of the docking pipe (405) extending into the inner cavity of one of the mounting grooves (402), and a water inlet groove (406) and a water outlet groove (407) being provided inside the docking pipe (405); the insulating layer (1) is fixed in the mounting groove (402) by a fixing mechanism (5).

2. An energy storage wire according to claim 1, characterized in that: The fixing mechanism (5) comprises an elastic sheet (501), the elastic sheet (501) being fixedly connected to the inner wall of the installation groove (402) and being located on the outer side of the butt joint tube (405); the interior of the connection seat (401) is slidably connected to a clamping block (502) extending into the inner cavity of the installation groove (402); a spring (503) is connected between the clamping block (502) and the connection seat (401); the interior of the connection seat (401) is slidably connected to a push rod (504) penetrating the clamping block (502); the push rod (504) moves to push the clamping block (502) to move, and the two clamping blocks (502) move closer to each other to clamp the insulating layer (1).

3. An energy storage wire according to claim 2, characterized in that: The fixing mechanism (5) further comprises a connecting frame (505), wherein the connecting frame (505) is fixedly connected to one end of the push rod (504) away from the clamping block (502), and the connecting frame (505) extends out of the connecting seat (401). A through hole (506) is provided at the top of the connecting frame (505), and a threaded hole (507) is provided at the top of the connecting seat (401). A bolt (508) is connected to the inner wall of the threaded hole (507), and a sliding groove (509) is provided on the outer wall of the clamping block (502). The sliding groove (509) allows the push rod (504) to slide. An extrusion ring (510) is provided on the outer ring of the elastic sheet (501), and the extrusion ring (510) is fixedly connected to the push rod (504).

4. An energy storage wire according to claim 3, characterized in that: One end of the clamping block (502) is provided with an arc-shaped surface, and the inner wall of the sliding groove (509) is in contact with the outer wall of the push rod (504).

5. The energy storage wire according to claim 3, characterized in that: One end of the push rod (504) is provided with an inclined surface, and the inclined surface is in contact with the clamping block (502).

6. The energy storage wire according to claim 3, characterized in that: The connecting frame (505) is in a C-shape, and the inner wall of the through hole (506) fits the outer wall of the bolt (508).

7. The energy storage wire according to claim 3, characterized in that: The thread of the threaded hole (507) matches the bolt (508).

8. The energy storage wire according to claim 3, characterized in that: The inner wall of the water-blocking layer (302) is in contact with the outer wall of the butt-jointing tube (405), and a plurality of elastic sheets (501) are provided.

9. The energy storage wire according to claim 3, characterized in that: The plurality of elastic sheets (501) are circumferentially distributed on the outer ring of the butt joint tube (405), and the elastic sheets (501) are distributed in a conical shape.

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