Heat-resistant flame-retardant energy storage cable and preparation method thereof

Abstract

The invention relates to the field of cables, in particular to a heat-resistant flame-retardant energy storage cable and a preparation method thereof. The cable further comprises an inner cylinder, a compression-resistant framework, a cable core, a high-temperature-resistant block, a first injection groove, an inflow groove, a fixing strip, a mounting groove and a second injection groove. An inner cylinder is installed on the inner wall of the high-temperature-resistant sleeve. Hot-melt plastic liquid is injected into the four first injection grooves, then the fixing strips are placed on the inner walls of the first injection grooves, and hot-melt plastic is injected into gaps formed by the fixing strips and the first injection grooves again, so that after the hot-melt plastic is melted, the fixing strips are fixed to the inner walls of the first injection grooves; by arranging the compression-resistant framework and the high-temperature-resistant sleeve, the heat-resistant and flame-retardant performance of the cable can be improved, and the problems that in the prior art, a heat-resistant and flame-retardant energy storage cable is simple in structure, poor in flame-retardant and heat-insulating capacity and poor in flame-retardant and heat-insulating performance are solved. And the protection of the cable core is difficult to improve when the cable core is extruded.

Description

Technical Field

[0001] The invention belongs to the field of cables, and in particular relates to a heat-resistant and flame-retardant energy storage cable and a preparation method thereof. Background Art

[0002] With the continuous growth of global energy demand, especially the widespread application of renewable energy and electric vehicles, energy storage technology plays an increasingly important role in modern energy systems. Energy storage in power systems is one of the key technologies to ensure the stability of energy supply, improve energy utilization efficiency, reduce energy waste and ensure the safe operation of power grids. Among the many components of energy storage technology, cables, as the basic facilities for transmitting energy, their performance plays a vital role in the safety and stability of energy storage systems.

[0003] Traditional energy storage cables are mainly used for power transmission, but because power energy storage systems often face harsh working environments such as high temperature and high current during operation, the heat resistance and flame retardancy of traditional cable materials are often difficult to meet the needs of high-performance energy storage cables. With the advancement of battery technology, power electronic equipment and the continuous expansion of the scale of power grids, energy storage cables, however, the structure of the heat-resistant and flame-retardant energy storage cables in the existing technology is relatively simple, the flame retardant and heat-insulating capabilities of the cables are poor, and it is difficult to improve the protection of the cable core when squeezed, which needs further improvement.

[0004] Therefore, a heat-resistant flame-retardant energy storage cable and a preparation method thereof are proposed, which can produce a cable with strong flame-retardant and heat-insulating capabilities, and can improve the protection of the cable core when it is squeezed. Summary of the invention

[0005] In order to overcome the problems in the prior art that the heat-resistant flame-retardant energy storage cable has a relatively simple structure, the cable has poor flame-retardant and heat-insulating capabilities, and it is difficult to improve the protection of the cable core when squeezed, a heat-resistant flame-retardant energy storage cable and a preparation method thereof are proposed.

[0006] The technical solution of the present invention is: a heat-resistant flame-retardant energy storage cable, comprising a high-temperature resistant sleeve; further comprising an inner cylinder, a compression-resistant skeleton, a cable core, a high-temperature resistant block, a first injection groove, an inflow groove, a fixing strip, an installation groove, and a second injection groove; the inner wall of the high-temperature resistant sleeve is installed with an inner cylinder, a compression-resistant skeleton is placed on the inner wall of the inner cylinder, the cable core is fixedly connected to the inner wall of the compression-resistant skeleton, four installation grooves are formed between the inner cylinder and the compression-resistant skeleton, a high-temperature resistant block is placed on the inner wall of the installation groove, four first injection grooves are opened through the side wall of the inner cylinder, and the compression-resistant skeleton is in a cross shape. shape, the four ends of the pressure-resistant skeleton are all provided with a groove body interconnected with the first injection groove, the two sides of the four ends of the pressure-resistant skeleton are penetrated with evenly distributed inflow grooves, the inflow grooves and the first injection groove are interconnected, one end of the high-temperature resistant block close to the pressure-resistant skeleton is fitted with the arc-shaped side wall of the pressure-resistant skeleton, the end of the high-temperature resistant block away from the pressure-resistant skeleton is fitted with the inner wall of the inner tube, the other two ends of the high-temperature resistant block are fitted with the side walls of the pressure-resistant skeleton, the four high-temperature resistant blocks and the pressure-resistant skeleton together form a cylindrical structure, and a fixing strip is pasted and installed on the inner wall of the first injection groove.

[0007] Preferably, the length of the fixing bar is smaller than the length of the first injection groove.

[0008] Preferably, the high temperature resistant sleeve is prepared by the following method: EPDM rubber particles, silicone rubber particles, filler, vulcanizer, antioxidant and antioxidant are mixed in a ratio of 3:2:1.5:1:1:1 and injected into an injection molding machine; at a temperature of 130-150°C, the hot melt liquid is squeezed into the mold to form a long cylindrical structure; after cooling to room temperature, a high temperature resistant sleeve is obtained.

[0009] Preferably, the inner cylinder is prepared by the following method: polyvinyl chloride particles, polyethylene particles and rubber particles are mixed and then put into an extruder, and then extruded into a mold at a temperature of -°C to obtain a long cylindrical structure, and then cooled to room temperature to obtain the inner cylinder.

[0010] Preferably, the compression-resistant skeleton is prepared by the following method: the matrix material, the filling material and the flame retardant are uniformly mixed in a ratio of ::, ensuring that the components are evenly distributed during the melting process, the mixed material is placed in a melting device, such as an extruder or an injection molding machine, heated to the melting temperature of the material, the hot melt liquid is placed in a mold, and a cross-shaped compression-resistant skeleton is obtained after demolding.

[0011] Preferably, the high temperature resistant block is prepared by the following method: ceramics and graphite are crushed and mixed, the processed raw materials are added into a special mold, and the high temperature resistant block of a predetermined shape is formed by heating and pressurizing.

[0012] Preferably, the fixing strip is prepared by the following method: glass fiber reinforced thermosetting plastic, alumina and silica powder are selected and mixed evenly in a ratio of ::, and then the mixture is extruded into a mold through an extruder to form a predetermined fixing strip.

[0013] A method for preparing a heat-resistant flame-retardant energy storage cable, which particularly comprises the heat-resistant flame-retardant energy storage cable as described above, and the steps are as follows:

[0014] S1: The aluminum-magnesium alloy wire is braided into a high-strength cable core by a stranding machine;

[0015] S2: Using a moving mechanism to move the formed compression-resistant frame to the side wall of the cable core coated with glue;

[0016] S3: clamping and stretching one end of the compression frame, and pulling the inner tube to the side wall of the compression frame through a traction machine;

[0017] S4: placing the high temperature resistant block on the side wall of the compression frame, so that one end of the high temperature resistant block close to the compression frame fits with the arc-shaped side wall of the compression frame, one end of the high temperature resistant block away from the compression frame fits with the inner wall of the inner tube, and the other two ends of the high temperature resistant block fit with the side wall of the compression frame. The four high temperature resistant blocks and the compression frame together form a cylindrical structure, at which time the first injection groove and the inflow groove are interconnected, and the inflow groove and the second injection groove are interconnected;

[0018] S5: First, the inner cylinder is clamped by a clamp so that the first injection groove faces upward, and then the injection nozzle is extended into the first injection groove facing upward, and the hot melt plastic liquid flows into the second injection groove through the first injection groove and the inflow groove, and the hot melt plastic flows into the interior of the high temperature resistant block, thereby realizing the mutual connection between the high temperature resistant block and the compression frame, and at the same time realizing the mutual connection between the high temperature resistant block and the inner cylinder;

[0019] S6: Then the inner cylinder is rotated so that another first injection groove faces upward, and the step S5 is repeated again, and the hot melt plastic liquid is injected from another injection groove to fill the unfilled area in the high temperature resistant block with the hot melt plastic liquid;

[0020] S7: Repeat step S6 twice to inject hot melt plastic liquid into the four first injection grooves, then place the fixing strip on the inner wall of the first injection groove, and inject hot melt plastic again into the gap formed by the fixing strip and the first injection groove, so that after the hot melt plastic melts, the fixing strip and the solidified plastic in the first injection groove can be connected together;

[0021] S8: The cable can be prepared by moving the inner tube to the inner wall of the high temperature resistant sleeve using a traction machine.

[0022] The beneficial effects of the present invention are as follows: by allowing the hot-melt plastic liquid to flow through the first injection groove and the inflow groove to the interior of the second injection groove, the hot-melt plastic will flow into the interior of the high-temperature resistant block, thereby realizing the mutual connection between the high-temperature resistant block and the compression-resistant skeleton, and at the same time realizing the mutual connection between the high-temperature resistant block and the inner tube, the hot-melt plastic liquid is injected into the interiors of the four first injection grooves, and then the fixing strip is placed on the inner wall of the first injection groove, and the hot-melt plastic is injected again into the gap formed by the fixing strip and the first injection groove, so that after the hot-melt plastic is melted, the fixing strip and the solidified plastic in the first injection groove can be connected together, and by providing a compression-resistant skeleton and a high-temperature resistant sleeve, the heat-resistant and flame-retardant properties of the cable can be improved, thereby solving the problem that the structure of the heat-resistant and flame-retardant energy storage cable in the prior art is relatively simple, the flame-retardant and heat-insulating ability of the cable is poor, and it is difficult to improve the protection of the cable core when squeezed. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 Shown is a schematic diagram of the three-dimensional structure of the heat-resistant and flame-retardant energy storage cable of the present invention;

[0024] Figure 2 Shown is a schematic diagram of the three-dimensional split structure of the inner cylinder and the first injection groove of the heat-resistant and flame-retardant energy storage cable of the present invention;

[0025] Figure 3 Shown is a schematic diagram of the three-dimensional split structure of the inner tube and the high temperature resistant block of the heat-resistant and flame-retardant energy storage cable of the present invention.

[0026] The markings in the attached drawings are: 1. high temperature resistant sleeve; 2. inner cylinder; 3. compression-resistant skeleton; 4. cable core; 5. high temperature resistant block; 6. first injection groove; 7. inflow groove; 8. fixing strip; 9. installation groove; 10. second injection groove. DETAILED DESCRIPTION

[0027] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0028] Example 1: Please refer to Figure 1-Figure 3The present invention provides an embodiment: a heat-resistant flame-retardant energy storage cable, comprising a high-temperature resistant sleeve 1; further comprising an inner tube 2, a compression-resistant skeleton 3, a cable core 4, a high-temperature resistant block 5, a first injection groove 6, an inflow groove 7, a fixing bar 8, an installation groove 9 and a second injection groove 10; the inner wall of the high-temperature resistant sleeve 1 is installed with the inner tube 2, the inner wall of the inner tube 2 is placed with a compression-resistant skeleton 3, the inner wall of the compression-resistant skeleton 3 is fixedly connected with the cable core 4, four installation grooves 9 are formed between the inner tube 2 and the compression-resistant skeleton 3, the inner wall of the installation groove 9 is placed with a high-temperature resistant block 5, the side wall of the inner tube 2 is penetrated with four first injection grooves 6, the compression-resistant skeleton 3 is placed on the inner wall of the installation groove 9, The frame 3 is cross-shaped, and the four ends of the pressure-resistant skeleton 3 are all provided with grooves that are interconnected with the first injection groove 6. Both sides of the four ends of the pressure-resistant skeleton 3 are penetrated with evenly distributed inflow grooves 7, and the inflow grooves 7 and the first injection groove 6 are interconnected. One end of the high-temperature resistant block 5 close to the pressure-resistant skeleton 3 is in contact with the arc-shaped side wall of the pressure-resistant skeleton 3, and the end of the high-temperature resistant block 5 away from the pressure-resistant skeleton 3 is in contact with the inner wall of the inner tube 2. The other two ends of the high-temperature resistant block 5 are in contact with the side walls of the pressure-resistant skeleton 3. The four high-temperature resistant blocks 5 and the pressure-resistant skeleton 3 together form a cylindrical structure, and a fixing strip 8 is pasted and installed on the inner wall of the first injection groove 6.

[0029] Preferably, the length of the fixing strip 8 is smaller than the length of the first injection groove 6 .

[0030] Example 2: Please refer to Figure 1-Figure 3 The present invention provides an embodiment, which is different from Embodiment 1 in that a high temperature resistant sleeve 1 is prepared by the following method: EPDM rubber particles, silicone rubber particles, fillers, vulcanizers, antioxidants and antioxidants are mixed in a ratio of 3:2:1.5:1:1:1 and injected into an injection molding machine; at a temperature of 130-150°C, hot molten liquid is squeezed into a mold to form a long cylindrical structure; after cooling to room temperature, a high temperature resistant sleeve 1 is obtained.

[0031] Example 3: Please refer to Figure 1-Figure 3 The present invention provides an embodiment, which is different from embodiment 1 in that the inner cylinder 2 is prepared by the following method: polyvinyl chloride particles, polyethylene particles and rubber particles are mixed and then extruded into a mold at a temperature of 100-130°C in an extruder to obtain a long cylindrical structure, and after cooling to room temperature, the inner cylinder 2 is obtained.

[0032] Example 4: Please refer to Figure 1-Figure 3 The present invention provides an embodiment, which is different from Embodiment 1 in that the compression-resistant skeleton 3 is prepared by the following method: the base material, the filling material and the flame retardant are evenly mixed in a ratio of 3:2:1 to ensure that the components are evenly distributed during the melting process, the mixed material is placed in a melting device, such as an extruder or an injection molding machine, heated to the melting temperature of the material, the hot melt liquid is placed in a mold, and a cross-shaped compression-resistant skeleton 3 is obtained after demolding.

[0033] Example 5: Please refer to Figure 1-Figure 3 The present invention provides an embodiment, which is different from Embodiment 1 in that the high temperature resistant block 5 is prepared by the following method: ceramics and graphite are crushed and mixed, the processed raw materials are added to a special mold, and the high temperature resistant block 5 of a predetermined shape is formed by heating and pressurizing.

[0034] Example 6: Please refer to Figure 1-Figure 3 The present invention provides an embodiment, which is different from Embodiment 1 in that the fixing strip 8 is prepared by the following method: glass fiber reinforced thermosetting plastic, alumina and silica powder are selected and mixed evenly in a ratio of 2:1:2, and then the mixture is extruded into a mold through an extruder to obtain a predetermined fixing strip 8.

[0035] A method for preparing a heat-resistant flame-retardant energy storage cable, characterized in that it comprises the heat-resistant flame-retardant energy storage cable according to claims 1-6, and the steps are as follows:

[0036] S1: Weaving multiple aluminum-magnesium alloy wires into a high-strength cable core 4 through a stranding machine;

[0037] S2: Using a moving mechanism, the formed compression-resistant frame 3 is moved to the side wall of the cable core 4 coated with glue;

[0038] S3: clamping and stretching one end of the compression-resistant frame 3, and pulling the inner tube 2 to the side wall of the compression-resistant frame 3 through a pulling machine;

[0039] S4: placing the high temperature resistant block 5 on the side wall of the compression skeleton 3, so that the end of the high temperature resistant block 5 close to the compression skeleton 3 fits with the arc-shaped side wall of the compression skeleton 3, the end of the high temperature resistant block 5 away from the compression skeleton 3 fits with the inner wall of the inner tube 2, and the other two ends of the high temperature resistant block 5 fit with the side wall of the compression skeleton 3. The four high temperature resistant blocks 5 and the compression skeleton 3 together form a cylindrical structure, at which time the first injection groove 6 and the inflow groove 7 are interconnected, and the inflow groove 7 and the second injection groove 10 are interconnected;

[0040] S5: First, clamp the inner tube 2 with a clamp so that the first injection groove 6 faces upward, and then extend the injection nozzle into the first injection groove 6 facing upward, and let the hot melt plastic liquid flow into the second injection groove 10 through the first injection groove 6 and the inflow groove 7, and the hot melt plastic will flow into the interior of the high temperature resistant block 5, so as to realize the mutual connection between the high temperature resistant block 5 and the compression skeleton 3, and at the same time realize the mutual connection between the high temperature resistant block 5 and the inner tube 2;

[0041] S6: Then the inner cylinder 2 is rotated so that the other first injection groove 6 faces upward, and the step S5 is repeated again, and the hot melt plastic liquid is injected from the other injection groove 6 to fill the unfilled area in the high temperature resistant block 5 with the hot melt plastic liquid;

[0042] S7: Repeat step S6 twice to inject hot-melt plastic liquid into the four first injection grooves 6, then place the fixing strip 8 on the inner wall of the first injection groove 6, and inject hot-melt plastic again into the gap formed by the fixing strip 8 and the first injection groove 6, so that after the hot-melt plastic melts, the fixing strip 8 and the solidified plastic in the first injection groove 6 can be connected together; S8: Use a traction machine to move the inner tube 2 to the inner wall of the high-temperature resistant sleeve 1 to achieve the preparation of the cable.

[0043] Working principle: First, EPDM rubber particles, silicone rubber particles, fillers, vulcanizers, antioxidants and antioxidants are mixed in a ratio of 3:2:1.5:1:1:1 and injected into an injection molding machine. At a temperature of 130-150°C, the hot melt liquid is squeezed into the mold to form a long cylindrical structure. After cooling to room temperature, a high temperature resistant sleeve 1 is obtained.

[0044] Next, the polyvinyl chloride particles, polyethylene particles and rubber particles are mixed and extruded into a mold at a temperature of 100-130° C. in an extruder to obtain a long cylindrical structure. After cooling to room temperature, an inner cylinder 2 is obtained.

[0045] Afterwards, the base material, the filling material and the flame retardant are mixed evenly in a ratio of 3:2:1 to ensure that the components are evenly distributed during the melting process, and the mixed material is placed in a melting device, such as an extruder or an injection molding machine, and heated to the melting temperature of the material, and the hot melt liquid is placed in a mold, and a cross-shaped compression-resistant skeleton 3 is obtained after demolding;

[0046] Then, ceramics and graphite are crushed and mixed, and the processed raw materials are added into a special mold, and are formed by heating and pressurizing to form a high-temperature resistant block 5 of a predetermined shape. Glass fiber reinforced thermosetting plastic, alumina and silica powder are selected and mixed in a ratio of 2:1:2, and then the mixture is extruded into a mold through an extruder to form a predetermined fixed strip 8;

[0047] Then the heat-resistant flame-retardant energy storage cable is prepared, and the steps are as follows:

[0048] S1: Weaving multiple aluminum-magnesium alloy wires into a high-strength cable core 4 through a stranding machine;

[0049] S2: Using a moving mechanism, the formed compression-resistant frame 3 is moved to the side wall of the cable core 4 coated with glue;

[0050] S3: clamping and stretching one end of the compression-resistant frame 3, and pulling the inner tube 2 to the side wall of the compression-resistant frame 3 through a pulling machine;

[0051] S4: placing the high temperature resistant block 5 on the side wall of the compression skeleton 3, so that the end of the high temperature resistant block 5 close to the compression skeleton 3 fits with the arc-shaped side wall of the compression skeleton 3, the end of the high temperature resistant block 5 away from the compression skeleton 3 fits with the inner wall of the inner tube 2, and the other two ends of the high temperature resistant block 5 fit with the side wall of the compression skeleton 3. The four high temperature resistant blocks 5 and the compression skeleton 3 together form a cylindrical structure, at which time the first injection groove 6 and the inflow groove 7 are interconnected, and the inflow groove 7 and the second injection groove 10 are interconnected;

[0052] S5: First, clamp the inner tube 2 with a clamp so that the first injection groove 6 faces upward, and then extend the injection nozzle into the first injection groove 6 facing upward, and let the hot melt plastic liquid flow into the second injection groove 10 through the first injection groove 6 and the inflow groove 7, and the hot melt plastic will flow into the interior of the high temperature resistant block 5, so as to realize the mutual connection between the high temperature resistant block 5 and the compression skeleton 3, and at the same time realize the mutual connection between the high temperature resistant block 5 and the inner tube 2;

[0053] S6: Then the inner cylinder 2 is rotated so that the other first injection groove 6 faces upward, and the step S5 is repeated again, and the hot melt plastic liquid is injected from the other injection groove 6 to fill the unfilled area in the high temperature resistant block 5 with the hot melt plastic liquid;

[0054] S7: Repeat step S6 twice to inject hot melt plastic liquid into the four first injection grooves 6, then place the fixing strip 8 on the inner wall of the first injection groove 6, and inject hot melt plastic again into the gap formed by the fixing strip 8 and the first injection groove 6, so that after the hot melt plastic is melted, the fixing strip 8 and the solidified plastic in the first injection groove 6 can be connected together;

[0055] S8: The inner tube 2 is moved to the inner wall of the high temperature resistant sleeve 1 by using a traction machine, and the preparation of the cable can be realized.

[0056] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the spirit of the present invention.

Claims

1. A heat-resistant flame-retardant energy storage cable, comprising a high-temperature resistant sleeve (1); characterized in that: It also includes an inner tube (2), a compression-resistant frame (3), a cable core (4), a high-temperature resistant block (5), a first injection groove (6), an inflow groove (7), a fixing strip (8), a mounting groove (9) and a second injection groove (10); the inner wall of the high-temperature resistant sleeve (1) is mounted with the inner tube (2), the inner wall of the inner tube (2) is mounted with the compression-resistant frame (3), the inner wall of the compression-resistant frame (3) is fixedly connected with the cable core (4), four mounting grooves (9) are formed between the inner tube (2) and the compression-resistant frame (3), the inner wall of the mounting groove (9) is mounted with the high-temperature resistant block (5), the side wall of the inner tube (2) is penetrated by four first injection grooves (6), the compression-resistant frame (3) is in a cross shape, and the compression-resistant frame (3) is fixedly connected with the cable core (4), four mounting grooves (9) are formed between the inner tube (2) and the compression-resistant frame (3), the inner wall of the mounting groove (9) is mounted with the high-temperature resistant block (5), four first injection grooves (6) are penetrated through the side wall of the inner tube (2), the compression-resistant frame (3) is in a cross shape, and the compression-resistant frame (3) is fixedly connected with the cable core (4), four mounting grooves (9) are formed between the inner tube (2) and the compression-resistant frame (3), the inner wall of the mounting groove (9 ...6) are formed between the inner tube (2) and the compression-resistant frame (3) The four ends of the compression frame (3) are provided with a groove body which is interconnected with the first injection groove (6); both sides of the four ends of the compression frame (3) are penetrated with evenly distributed inflow grooves (7); the inflow grooves (7) and the first injection groove (6) are interconnected; one end of the high temperature resistant block (5) close to the compression frame (3) is in contact with the arc-shaped side wall of the compression frame (3); one end of the high temperature resistant block (5) away from the compression frame (3) is in contact with the inner wall of the inner tube (2); the other two ends of the high temperature resistant block (5) are in contact with the side wall of the compression frame (3); the four high temperature resistant blocks (5) and the compression frame (3) together form a cylindrical structure; and a fixing strip (8) is glued and installed on the inner wall of the first injection groove (6).

2. The heat-resistant flame-retardant energy storage cable according to claim 1, characterized in that: The length of the fixing strip (8) is smaller than the length of the first injection groove (6).

3. The heat-resistant and flame-retardant energy storage cable according to claim 1, characterized in that: The high temperature resistant sleeve (1) is prepared by the following method: EPDM rubber particles, silicone rubber particles, filler, vulcanizer, antioxidant and antioxidant are mixed in a ratio of 3:2:1.5:1:1:1 and then injected into an injection molding machine; at a temperature of 130-150°C, hot molten liquid is squeezed into a mold to form a long cylindrical structure; after cooling to room temperature, the high temperature resistant sleeve (1) is obtained.

4. The heat-resistant and flame-retardant energy storage cable according to claim 1, characterized in that: The inner cylinder (2) is prepared by the following method: polyvinyl chloride particles, polyethylene particles and rubber particles are mixed and then extruded into a mold at a temperature of 100-130° C. in an extruder to obtain a long cylindrical structure, and then cooled to room temperature to obtain the inner cylinder (2).

5. The heat-resistant and flame-retardant energy storage cable according to claim 1, characterized in that: The compression-resistant skeleton (3) is prepared by the following method: a base material, a filling material and a flame retardant are mixed evenly in a ratio of 3:2:1 to ensure that each component can be evenly distributed during the melting process, the mixed material is placed in a melting device such as an extruder or an injection molding machine, heated to the melting temperature of the material, the hot melt liquid is placed in a mold, and a cross-shaped compression-resistant skeleton (3) is obtained after demolding.

6. The heat-resistant and flame-retardant energy storage cable according to claim 1, characterized in that: The high temperature resistant block (5) is prepared by the following method: ceramics and graphite are crushed and mixed, the processed raw materials are added into a special mold, and the high temperature resistant block (5) is formed into a predetermined shape by heating and pressurizing.

7. The heat-resistant and flame-retardant energy storage cable according to claim 1, characterized in that: The fixing strip (8) is prepared by the following method: glass fiber reinforced thermosetting plastic, alumina and silica powder are mixed evenly in a ratio of 2:1:2, and then the mixture is extruded into a mold through an extruder to obtain a predetermined fixing strip (8).

8. A method for preparing a heat-resistant and flame-retardant energy storage cable, characterized in that The method comprises the heat-resistant and flame-retardant energy storage cable according to claims 1 to 7, wherein the steps are as follows: S1: Weaving multiple aluminum-magnesium alloy wires into a high-strength cable core (4) through a stranding machine; S2: using a moving mechanism to move the formed compression-resistant frame (3) to the side wall of the cable core (4) coated with glue; S3: clamping and stretching one end of the compression-resistant frame (3), and pulling the inner tube (2) to the side wall of the compression-resistant frame (3) through a pulling machine; S4: placing the high temperature resistant block (5) on the side wall of the compression frame (3), so that one end of the high temperature resistant block (5) close to the compression frame (3) fits with the arc-shaped side wall of the compression frame (3), one end of the high temperature resistant block (5) away from the compression frame (3) fits with the inner wall of the inner tube (2), and the other two ends of the high temperature resistant block (5) fit with the side wall of the compression frame (3). The four high temperature resistant blocks (5) and the compression frame (3) together form a cylindrical structure, at which time the first injection groove (6) and the inflow groove (7) are interconnected, and the inflow groove (7) and the second injection groove (10) are interconnected; S5: First, the inner cylinder (2) is clamped by a clamp so that the first injection groove (6) faces upward, and then the injection nozzle is extended into the interior of the first injection groove (6) facing upward, and the hot melt plastic liquid flows through the first injection groove (6) and the inflow groove (7) to the interior of the second injection groove (10), and the hot melt plastic will flow into the interior of the high temperature resistant block (5), thereby realizing the mutual connection between the high temperature resistant block (5) and the compression-resistant skeleton (3), and at the same time realizing the mutual connection between the high temperature resistant block (5) and the inner cylinder (2); S6: Then the inner cylinder (2) is rotated so that the other first injection groove (6) faces upward, and the step S5 is repeated again, and the hot melt plastic liquid is injected from the other injection groove (6) to fill the unfilled area in the high temperature resistant block (5) with the hot melt plastic liquid; S7: Repeat step S6 twice to inject hot melt plastic liquid into the interior of the four first injection grooves (6), then place the fixing strip (8) on the inner wall of the first injection groove (6), and inject hot melt plastic again into the gap formed by the fixing strip (8) and the first injection groove (6), so that after the hot melt plastic is melted, the fixing strip (8) and the solidified plastic in the first injection groove (6) can be connected together; S8: The inner tube (2) is moved to the inner wall of the high temperature resistant sleeve (1) by using a traction machine, thereby completing the preparation of the cable.

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