An explosion-proof composite cable for new energy vehicles

Abstract

The application discloses a new energy vehicle composite cable with explosion prevention, and belongs to the technical field of cables. The composite cable mainly comprises an insulating sleeve, and protective sleeves are fixedly connected to two end portions of the insulating sleeve. A separation sleeve is slidably connected to the inner wall of one of the protective sleeves. Opposite end portions of the two protective sleeves are fixedly connected with connecting heads. When the current value sensed by the current sensor exceeds the set explosion-proof current value of the wireless controller, the sleeve block moves right along the inner wall of the frame plate. The three linkage blocks can drive the three separation rings to move right respectively. The three contact columns are separated from the three power contact heads quickly. The three linkage blocks drive the three supporting rings to move respectively. The shunt column is connected with the flow guide block. The composite cable can be automatically disconnected. The disconnected composite cable can also realize shunt protection for the residual high-voltage current, and the explosion-proof safety is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of cable technology, and more specifically to an explosion-proof composite cable for new energy vehicles. Background Technology

[0002] Explosion-proof composite cables for new energy vehicles take into account both safety and durability. They include insulation layers, protective layers, shielding, grounding wires, and protective sleeve structures. These structures not only prevent damage to the cable during operation but also prevent electromagnetic interference, improving the cable's service life and stability. At the same time, the explosion-proof design ensures that the cable can work safely and stably in specific working environments such as high temperature, high pressure, or flammable environments, avoiding safety accidents.

[0003] A search of existing publicly available technical documents reveals that Chinese Patent Publication No. CN211555540U discloses a metal pressure-resistant and explosion-proof cable for new energy vehicles. This cable boasts unparalleled high strength, excellent weather resistance, good resistance to ozone, ultraviolet radiation, and electric arcs, low-temperature resistance, high environmental performance, heavy weight, and good flexibility. It effectively avoids low-frequency conduction, high-frequency conduction, and radiation interference, improving the cable's pressure resistance and explosion-proof properties by at least 200%, which is beneficial for the long-term development and use of new energy vehicles. However, this cable has the following drawbacks;

[0004] While composite cables can be used in high-temperature conditions when connected to new energy vehicles, high currents can cause them to overheat. Therefore, circuit breakers are needed to disconnect the cables. However, residual high-voltage current can easily fail to dissipate, resulting in significant charge buildup. Furthermore, damage to the cable's insulation can trigger arcing or localized overheating, potentially igniting the insulation and causing an explosion. This results in poor explosion-proof safety. Therefore, an explosion-proof composite cable for new energy vehicles is provided. Summary of the Invention

[0005] Therefore, the present invention provides an explosion-proof composite cable for new energy vehicles to solve the technical problems existing in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an explosion-proof composite cable for new energy vehicles, comprising an insulating sleeve, both ends of which are fixedly connected to protective sleeves, a separating sleeve slidably connected to the inner wall of one of the protective sleeves, and connectors fixedly connected to opposite ends of the two protective sleeves. A first capacitor is fixedly connected to one end of one of the connectors, and a linkage protection mechanism is installed on one side of the first capacitor. The linkage protection mechanism includes a frame plate fixedly installed on one side of the first capacitor, and a sleeve block slidably connected to the inner wall of the frame plate. A slip ring is fixedly connected to the bottom end of the sleeve block. Multiple linkage blocks are fixedly connected to the outer wall of the slip ring, and a separating ring is fixedly installed at one end of each linkage block. A contact post is welded to the inner wall of the separating ring. A primary shunt protection component is installed on one side of the linkage block. A secondary shunt protection component is installed at the bottom end of the outer wall of the contact post.

[0007] Preferably, the connector and the separating sleeve are slidably inserted together, and the inner diameter of the insulating sleeve is larger than the outer diameter of the separating sleeve. Multiple linkage blocks are arranged in a circular, equidistant pattern, and the linkage blocks are made of copper. A gap is provided between the linkage block and the first capacitor. Multiple separating rings are fixedly connected to the separating sleeve. A screw is threaded onto the inner wall of the sleeve block, and a drive motor is fixedly installed on one side of the inner wall of the frame plate. The drive motor drives the screw to rotate. Multiple electrical contacts are fixedly installed on the inner wall of each connector, and the electrical contacts are slidably inserted into contact posts. A wire core is welded to one end of each contact post.

[0008] In this technical solution, when the current value sensed by the current sensor exceeds the explosion-proof current value set by the wireless controller, the wireless controller starts the drive motor. The screw drives the sleeve block to move to the right under the action of the thread transmission force. The slip ring drives the three linkage blocks to move to the right synchronously. The three separation rings drive the three contact posts to move to the right respectively. The three contact posts quickly separate from the three electrical contacts, ensuring that the three contact posts are separated from the three electrical contacts respectively.

[0009] Preferably, the primary current shunt protection assembly includes a support ring fixedly installed on one side of the linkage block; a current shunt column is welded to the inner wall of the support ring, a flow guide block is installed on one side of the current shunt column, and a contact strip is fixedly connected to one side of the flow guide block; a flow guide strip is installed at one end of the contact strip, and the flow guide strip and the contact strip are integrally formed by die casting; a contact point is fixedly connected to one side of the flow guide strip, and the contact point is fixedly connected to the first capacitor; a support block is fixedly connected to the bottom end of one of the contact strips, and a distance sensor is fixedly installed on one side of the support block, the distance sensor is used to sense the movement distance of the slip ring, a gap is opened between the current shunt column and the flow guide block, and the flow guide block and the current shunt column are slidably inserted; the vertical cross-sectional area of ​​one end of the current shunt column is smaller than the vertical cross-sectional area of ​​its other end, and the number of contacts is three, which are arranged in a circular ring at equal intervals.

[0010] In this technical solution, after the contact post is disconnected from the energized contact, a large amount of current will remain on the contact post and the wire core. The support ring carries the shunt post to move, and the shunt post is inserted into the guide block. The contact strip provides support to the support block. When the sensing distance of the distance sensor is the same as the first-level shunt protection distance set by the wireless controller, the drive motor can be turned off by the wireless controller. The three contact posts can transmit the residual current to the three separation rings. The linkage block guides the current to the support ring, the support ring guides the current to the shunt post, the guide block guides the current to the contact strip, and the contact strip guides the current to the contact point through the guide strip. The contact point can transmit the residual current charge to the first capacitor to realize the first-level storage shunt.

[0011] Preferably, the secondary shunt protection assembly includes an induction wire welded to the bottom of the outer wall of the contact post; a support cable is welded to the bottom of the induction wire, and a current sensor is fixedly connected to one end of the support cable, the current sensor being used to sense the current value of the support cable; a backup battery is fixedly connected to the inner wall of the current sensor, and a wireless controller is fixedly installed on one side of the current sensor, and a second capacitor is fixedly installed on one side of the wireless controller; a plurality of shunt contact strips are welded to one side of the second capacitor and near its edge, and a contact ring is welded to one end of each shunt contact strip, an insulating block is fixedly connected to the bottom end of the contact ring, the plurality of shunt contact strips are arranged in a circular ring at equal intervals, and the plurality of shunt contact strips are all made of copper.

[0012] In this technical solution, when the current value sensed by the current sensor continues to exceed the explosion-proof current value set by the wireless controller, the drive motor is restarted via the wireless controller, causing the slip ring to continue moving to the right. The slip ring, carrying the three linkage blocks, continues to move, and the three shunt columns continue to move and insert into the three contact rings respectively. When the distance sensed by the distance sensor is the same as the secondary protection distance set by the wireless controller, the drive motor is shut off via the wireless controller. The large amount of current remaining in the three contact columns is guided to the three separation rings, which are then shunted by the three linkage blocks to the three branch rings, and further shunted by the three shunt columns to the three contact rings. The three shunt contact bars can store the secondary current through the second capacitor.

[0013] The present invention has the following advantages:

[0014] 1. This invention utilizes a linkage protection mechanism. When the current value sensed by the current sensor exceeds the explosion-proof current value set by the wireless controller, the drive motor drives the screw to rotate, the sleeve block moves to the right along the inner wall of the frame plate, and the sleeve block carries the slip ring to the right. The three linkage blocks can respectively drive the three separation rings to the right, and the three separation rings respectively drive the three contact posts to the right. The three contact posts achieve rapid separation from the three electrical contacts, and the three wire cores are disconnected, providing explosion-proof linkage protection. At the same time, the three linkage blocks respectively drive the three support rings to move, and the support rings carry the current shunt posts to move. The current shunt posts are connected to the current guide block, and the composite cable can be automatically disconnected. The disconnected composite cable can also provide current shunt protection for the residual high voltage current, and the residual current can be dissipated in time to avoid explosion, greatly improving explosion-proof safety.

[0015] 2. This invention employs a first-level shunt protection component. Three linkage blocks drive three branch rings to move, and the branch rings carry shunt columns to move. The shunt columns are inserted into the guide blocks. When the distance sensor's sensing distance is the same as the first-level shunt protection distance set by the wireless controller, the wireless controller shuts off the drive motor. The linkage blocks guide the current to the branch rings, and the branch rings guide the current to the shunt columns. The contacts can transfer the residual current charge to the first capacitor, realizing first-level storage and shunt protection. The residual high-voltage current on the composite cable can be automatically shunted to prevent the composite cable of new energy vehicles from exploding, greatly improving explosion-proof safety.

[0016] 3. This invention utilizes a two-stage shunt protection component. When the current value sensed by the current sensor continues to exceed the explosion-proof current value set by the wireless controller, the drive motor is started again by the wireless controller. The slip ring carries three linkage blocks to continue moving. The three linkage blocks drive the three branch rings to continue moving. The three shunt columns continue to move and are inserted into the three contact rings respectively. The large amount of current remaining in the three contact columns is guided to the three separation rings and then shunted to the three branch rings by the three linkage blocks. The three shunt contact bars can store the current in the second stage through the second capacitor. In time, the residual high voltage current can be dissipated in time, avoiding the explosion caused by arc discharge due to the residue.

[0017] Based on the interaction of the above-mentioned multiple functions, the three contact posts are first quickly separated from the three electrical contacts, and then the three shunt posts are connected to the three current-conducting blocks. The contacts can transfer the residual current charge to the first capacitor. Finally, the three shunt posts continue to move and are inserted into the three contact rings respectively for secondary current storage and shunt. In summary, the composite cable used in new energy vehicles can automatically disconnect the line and simultaneously achieve dual-stage shunt storage of residual high-voltage current on the line, which greatly improves the explosion-proof safety of the composite cable. Attached Figure Description

[0018] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0019] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0020] Figure 1 This is a schematic diagram of the main structure of the explosion-proof composite cable for new energy vehicles according to the present invention.

[0021] Figure 2 This is a partial structural diagram of the insulation sleeve and protective sleeve of the present invention.

[0022] Figure 3 This is a schematic diagram of the vertical cross-sectional structure of the explosion-proof composite cable for new energy vehicles according to the present invention;

[0023] Figure 4This is a partial structural diagram of the vertical cross-section at the connection between the insulating sleeve and the protective sleeve of the present invention;

[0024] Figure 5 This is a partial structural diagram of the vertical cross-section at the connection between the protective sleeve and the separating sleeve of the present invention;

[0025] Figure 6 This is a partial structural diagram of the connection between the sleeve block and the screw rod of the present invention;

[0026] Figure 7 This is a partial structural diagram of the connection between the frame plate and the supporting cable of the present invention;

[0027] Figure 8 This is a schematic diagram of a partial cut-off structure at the connection between the contact post and the sensing line of the present invention.

[0028] Figure 9 This is a partial structural diagram of the secondary current shunt protection component of the present invention;

[0029] In the diagram: 1. Insulating sleeve; 2. Protective sleeve; 3. Separating sleeve; 4. First capacitor; 5. Connector; 6. Frame plate; 7. Sleeve block; 8. Slip ring; 9. Linkage block; 10. Separating ring; 11. Contact post; 12. Screw; 13. Drive motor; 14. Electrical contact; 15. Wire core; 16. Support ring; 17. Shunt post; 18. Guide block; 19. Contact strip; 20. Guide strip; 21. Contact point; 22. Support block; 23. Distance sensor; 24. Induction wire; 25. Support cable; 26. Current sensor; 27. Backup battery; 28. Wireless controller; 29. ​​Second capacitor; 30. Shunt contact strip; 31. Contact ring; 32. Insulating block. Detailed Implementation

[0030] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] As attached Figure 1 - Figure 9 The diagram shows an explosion-proof composite cable for new energy vehicles. This explosion-proof composite cable for new energy vehicles is equipped with a linkage protection mechanism, a primary shunt protection component, and a secondary shunt protection component. The arrangement of each mechanism and component enables the composite cable for new energy vehicles to automatically disconnect the line, and at the same time, it achieves dual-stage shunt storage of residual high-voltage current on the line, avoiding the generation of electric arcs that could cause an explosion, thus greatly improving the explosion-proof safety of the composite cable. The specific structural settings of each mechanism and component are as follows.

[0032] In this technical solution, as shown in the appendix Figure 1 - Figure 6 As shown, a first capacitor 4 is fixedly connected to one end of one of the connectors 5, and a linkage protection mechanism is installed on one side of the first capacitor 4. The linkage protection mechanism includes a frame plate 6 fixedly installed on one side of the first capacitor 4, and a sleeve block 7 is slidably connected to the inner wall of the frame plate 6. A slip ring 8 is fixedly connected to the bottom end of the sleeve block 7. Multiple linkage blocks 9 are fixedly connected to the outer wall of the slip ring 8. A separation ring 10 is fixedly installed at one end of each linkage block 9. A contact post 11 is welded to the inner wall of the separation ring 10. A primary current shunt protection component is installed on one side of the linkage block 9. A secondary current shunt protection component is installed at the bottom end of the outer wall of the contact post 11.

[0033] In this technical solution, as shown in the appendix Figure 2 - Figure 6 As shown, a screw 12 is threadedly connected to the inner wall of the sleeve 7, and a drive motor 13 is fixedly installed on one side of the inner wall of the frame plate 6; the drive motor 13 is used to drive the screw 12 to rotate. This allows the drive motor 13 to drive the screw 12 to rotate, and the screw 12 drives the sleeve 7 to move to the right under the action of threaded transmission, ensuring that the sleeve 7 moves stably inside the frame plate 6. Multiple electrical contacts 14 are fixedly installed on the inner wall of each connector 5, and the electrical contacts 14 are slidably inserted into the contact posts 11; and a wire core 15 is welded to one end of each contact post 11. This allows power to be supplied through the three electrical contacts 14 inside the connector 5, with the three electrical contacts 14 distributing power to the three contact posts 11, and the three contact posts 11 distributing power to the three wire cores 15. The three wire cores 15 enable the power supply operation of the new energy vehicle circuit, facilitating power supply connection.

[0034] In this technical solution, as shown in the appendix Figure 8 As shown, the primary shunt protection assembly includes a support ring 16 fixedly installed on one side of the linkage block 9; a shunt column 17 is welded to the inner wall of the support ring 16, a guide block 18 is installed on one side of the shunt column 17, and a contact strip 19 is fixedly connected to one side of the guide block 18; a guide strip 20 is installed at one end of the contact strip 19, and the guide strip 20 and the contact strip 19 are integrally formed by die casting; a contact 21 is fixedly connected to one side of the guide strip 20, and the contact 21 is fixedly connected to the first capacitor 4; a support block 22 is fixedly connected to the bottom end of one of the contact strips 19, and a distance sensor 23 is fixedly installed on one side of the support block 22. The distance sensor 23 is used to sense the moving distance of the slip ring 8. A gap is opened between the shunt column 17 and the guide block 18, and the guide block 18 and the shunt column 17 are slidably inserted into each other; the vertical cross-sectional area of ​​one end of the shunt column 17 is smaller than the vertical cross-sectional area of ​​the other end, and there are three contacts 21, which are arranged in a circular and equidistant distribution.

[0035] In this technical solution, as shown in the appendix Figure 8 - Figure 9 As shown, the secondary shunt protection assembly includes an induction wire 24 welded to the bottom of the outer wall of the contact post 11; a support cable 25 is welded to the bottom of the induction wire 24, and a current sensor 26 is fixedly connected to one end of the support cable 25. The current sensor 26 is used to sense the current value of the support cable 25; a spare battery 27 is fixedly connected to the inner wall of the current sensor 26, and a wireless controller 28 is fixedly installed on one side of the current sensor 26. A second capacitor 29 is fixedly installed on one side of the wireless controller 28; a plurality of shunt contact strips 30 are welded to one side of the second capacitor 29 and near its edge. A contact ring 31 is welded to one end of each shunt contact strip 30, and an insulating block 32 is fixedly connected to the bottom end of the contact ring 31. The plurality of shunt contact strips 30 are arranged in a circular ring at equal intervals, and the plurality of shunt contact strips 30 are all made of copper.

[0036] The application process of the explosion-proof composite cable for new energy vehicles of this invention is as follows:

[0037] Firstly, when using the cable of this invention, one connector 5 connects to the power supply line of the new energy vehicle battery, while the other connector 5 can connect to the new energy vehicle's power transmission equipment. Power is supplied through three electrical contacts 14 inside the connector 5. The three electrical contacts 14 distribute the power to three contact posts 11, which in turn distribute the power to three wire cores 15. The three wire cores 15 enable the power supply operation of the new energy vehicle's circuit, and the two protective sleeves 2 provide support to the insulating sleeve 1. The insulating sleeve 1 protects the exterior of the three wire cores 15, enabling the new energy vehicle's power connection.

[0038] Secondly, during the linkage protection operation of this invention, the current sensor 26 can sense the support cable 25, which in turn senses three sensing lines 24. Each of the three sensing lines 24 senses one of the three contact posts 11, and the current on each contact post 11 can be sensed by the current sensor 26. When the current value sensed by the current sensor 26 exceeds the explosion-proof current value set by the wireless controller 28, backup power is supplied by the backup battery 27, and the wireless controller 28 starts the drive motor 13, which drives the screw 12 to rotate. The screw 12 drives the sleeve 7 to move to the right under the action of the threaded transmission force. The sleeve 7 moves to the right along the inner wall of the frame plate 6. The sleeve 7 carries the slip ring 8 to move to the right. The slip ring 8 drives the three linkage blocks 9 to move to the right synchronously. The three linkage blocks 9 can drive the three separation rings 10 to move to the right respectively. The three separation rings 10 drive the three contact posts 11 to move to the right respectively. The three contact posts 11 and the three electrical contacts 14 are quickly separated. At the same time, the separation rings 10 carry the separation sleeve 3 to slide to the right along the inner wall of the protective sleeve 2, ensuring that the three contact posts 11 are separated from the three electrical contacts 14 respectively, thus achieving explosion-proof linkage protection.

[0039] Then, during the first-level shunt protection of this invention, after the contact post 11 is disconnected from the energized contact 14, a large amount of current will remain on the contact post 11 and the wire core 15. The three linkage blocks 9 respectively drive the three support rings 16 to move. The support rings 16 carry the shunt post 17 to move, and the shunt post 17 is inserted into the current guide block 18. In this way, the shunt post 17 and the current guide block 18 are connected. At the same time, the contact strip 19 provides support force to the support block 22. The support block 22 supports the distance sensor 23. The distance sensor 23 senses the moving distance of the slip ring 8. When the distance sensed by the distance sensor 23 is consistent with the sensing setting of the wireless controller 28... When the first-level shunt protection distance is the same, the drive motor 13 can be shut off by the wireless controller 28. The three contact posts 11 can transmit the residual current to the three separation rings 10, which then guide the current to the three linkage blocks 9. The linkage blocks 9 guide the current to the branch ring 16, the branch ring 16 guides the current to the shunt post 17, and the shunt post 17 guides the current to the guide block 18. The guide block 18 guides the current to the contact strip 19, and the contact strip 19 guides the current to the contact point 21 through the guide strip 20. The contact point 21 can transmit the residual current charge to the first capacitor 4, thus realizing the first-level storage shunt.

[0040] Finally, during the secondary current shunt protection, the current sensor 26 continues to sense the support cable 25, and the three sensing lines 24 sense the three contact posts 11 respectively. The current on the three contact posts 11 can be sensed by the current sensor 26. When the current value sensed by the current sensor 26 continues to exceed the explosion-proof current value set by the wireless controller 28, the wireless controller 28 continues to start the drive motor 13. In this way, the screw 12 carrying the sleeve block 7 continues to move to the right under the action of the thread transmission force, which can make the slip ring 8 continue to move to the right. The slip ring 8 carries the three linkage blocks 9 to continue to move. The three linkage blocks 9 respectively drive the three support rings 16 to continue to move, and the three shunt posts 17 continue to move and are inserted into the three contact rings 31 respectively. When the distance sensor 23 performs secondary distance sensing on the slip ring 8, and the distance sensed by the distance sensor 23 is the same as the secondary distance set by the wireless controller 28, the wireless controller 28 shuts off the drive motor 13, and the contact strip 19 provides support force to the insulating block 32, and the insulating block 32 provides support force to the contact ring 31.

[0041] The large amount of residual current in the three contact posts 11 is guided to the three separation rings 10, and then shunted to the three linkage blocks 9 through the three separation rings 10. The current is then shunted to the three branch rings 16 through the three linkage blocks 9, and further shunted to the three contact rings 31 through the three shunt posts 17. The current is then shunted to the shunt contact strips 30 through the contact rings 31. The three shunt contact strips 30 can store secondary current through the second capacitor 29, which avoids arc discharge or local overheating on the wire core 15 and prevents the insulation material of the cable from igniting and causing an explosion. The composite cable for new energy vehicles has better explosion-proof safety.

[0042] All contents not described in detail in the specification are existing technologies known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used. Electrical control components not mentioned in this technical solution are not shown in the figures because they are existing technologies, and will not be described here.

[0043] Although the present invention has been described in detail above with general descriptions and specific embodiments, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. An explosion-proof composite cable for new energy vehicles, comprising an insulating sleeve, with protective sleeves fixedly connected to both ends of the insulating sleeve, a separating sleeve slidably connected to the inner wall of one of the protective sleeves, and connectors fixedly connected to opposite ends of the two protective sleeves, with a first capacitor fixedly connected to one end of one of the connectors, characterized in that: One side of the first capacitor is provided with a linkage protection mechanism; The linkage protection mechanism comprises a frame plate fixedly installed on one side of the first capacitor, and the inner wall of the frame plate is slidably connected with a sleeve block, and the bottom end of the sleeve block is fixedly connected with a sliding ring; The outer wall of the sliding ring is fixedly connected with a plurality of linkage blocks, one end of each linkage block is fixedly installed with a separation ring, and the inner wall of the separation ring is welded with a contact post; One side of the linkage block is provided with a first-level shunt protection assembly; The outer wall bottom end of the contact post is provided with a second-level shunt protection assembly; The inner wall of the sleeve block is threadedly connected with a screw rod, and one side of the inner wall of the frame plate is fixedly installed with a driving motor; The driving motor is used for driving the screw rod to rotate; The inner wall of each connecting head is fixedly installed with a plurality of electric contact heads, and the electric contact heads and the contact posts are slidably inserted; And one end of each contact post is welded with a wire core; The first-level shunt protection assembly comprises a support ring fixedly installed on one side of the linkage block; The inner wall of the support ring is welded with a shunt column, one side of the shunt column is provided with a flow guide block, and one side of the flow guide block is fixedly connected with a contact strip; One end of the contact strip is provided with a flow guide strip, and the flow guide strip and the contact strip are integrally formed by die casting; One side of the flow guide strip is fixedly connected with a contact point, and the contact point is fixedly connected with the first capacitor; The bottom end of one of the contact strips is fixedly connected with a support block, and one side of the support block is fixedly installed with a distance sensor, and the distance sensor is used for sensing the moving distance of the sliding ring; A gap is formed between the shunt column and the flow guide block, and the flow guide block and the shunt column are slidably inserted; The vertical cross-sectional area of one end of the shunt column is smaller than that of the other end, and when the first-level shunt protection is performed, the shunt column is inserted into the flow guide block; The second-level shunt protection assembly comprises an induction line welded and installed on the outer wall bottom end of the contact post; The bottom end of the induction line is welded with a support cable, one end of the support cable is fixedly connected with a current sensor, and the current sensor is used for sensing the current value of the support cable; A backup battery is fixedly connected to the inner wall of the current sensor, and a wireless controller is fixedly installed on one side of the current sensor, and a second capacitor is fixedly arranged on one side of the wireless controller; A plurality of shunt contact strips are welded on one side of the second capacitor and close to the edge line thereof, one end of each shunt contact strip is welded with a contact ring, and an insulating block is fixedly connected to the bottom end of the contact ring, and when the second-level shunt protection is performed, the shunt column is moved and inserted into the contact ring; When the current value sensed by the current sensor exceeds the set explosion-proof current value of the wireless controller, the backup power supply of the backup battery is used, the wireless controller starts the driving motor, the driving motor drives the screw rod to rotate, and the contact post and the electric contact head are separated and disconnected.

2. The explosion-proof composite cable for new energy vehicles according to claim 1, characterized in that: The connecting head and the separation sleeve are slidably inserted, and the inner wall diameter of the insulating sleeve is greater than the outer wall diameter of the separation sleeve.

3. The explosion-proof composite cable for new energy vehicles according to claim 1, characterized in that: A plurality of linkage blocks are arranged in a circular ring at equal intervals, and the linkage blocks are made of copper material; A gap is formed between the linkage block and the first capacitor, and a plurality of separation rings are fixedly connected between the separation sleeve.

4. The explosion-proof composite cable for new energy vehicles according to claim 1, characterized in that: The number of contacts is three, and the three contacts are arranged in a circular, equidistant distribution.

5. The explosion-proof composite cable for new energy vehicles according to claim 1, characterized in that: The multiple shunt contacts are arranged in a circular, equidistant pattern, and all of the multiple shunt contacts are made of copper.

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